WO2017190305A1 - Cell switching method, terminal, and core network device - Google Patents
Cell switching method, terminal, and core network device Download PDFInfo
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- WO2017190305A1 WO2017190305A1 PCT/CN2016/081101 CN2016081101W WO2017190305A1 WO 2017190305 A1 WO2017190305 A1 WO 2017190305A1 CN 2016081101 W CN2016081101 W CN 2016081101W WO 2017190305 A1 WO2017190305 A1 WO 2017190305A1
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- narrowband
- core network
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- 238000000034 method Methods 0.000 title claims abstract description 66
- 230000006870 function Effects 0.000 claims description 16
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- 230000004044 response Effects 0.000 description 27
- 230000015654 memory Effects 0.000 description 25
- 230000011664 signaling Effects 0.000 description 17
- 238000010586 diagram Methods 0.000 description 13
- 238000004891 communication Methods 0.000 description 9
- 230000003993 interaction Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 230000009977 dual effect Effects 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/34—Reselection control
Definitions
- the embodiments of the present invention relate to the field of communications technologies, and in particular, to a cell handover method, a terminal, and a core network device.
- the police Digital Trunking (PDT) system In the field of professional trunking communication, the police Digital Trunking (PDT) system, the Terrestrial Trunked Radio (Tetra) system and the P25 (Project25) are several mainstream systems, all of which belong to the narrowband cluster system.
- Narrowband trunking communication systems such as PDT, Tetra, and P25 can provide users with good narrowband voice services, but have the disadvantage of low transmission rate in data services, and cannot meet the needs of growing broadband services such as images and data.
- the problem is that the industry is generally optimistic about narrow-band systems and broadband systems for broadband and narrow-band cluster convergence. Broadband systems such as Long Term Evolution (LTE) systems, wideband and narrowband cluster convergence methods such as PDT+LTE, Tetra+LTE, P25+LTE, etc. .
- the core networks are respectively constructed and interconnected through gateways.
- the network architecture of the gateway interconnection can be as shown in Figure 1. After that, the core network will gradually transition to the unified integration phase.
- the unified network architecture can be as shown in Figure 2.
- Terminal types supported by wideband and narrowband cluster systems include narrowband terminals, broadband terminals, and dual mode terminals.
- the existing broadband cluster and narrowband cluster standards support the switching function: for the broadband cluster terminal, the switching scheme defined by the broadband standard (for example, LTE handover) can be adopted; for the narrowband cluster terminal, the handover scheme defined by the narrowband cluster standard can be adopted (for example, : PDT handover); for dual-mode terminals, from the broadband cell to the broadband cell handover, a broadband handover scheme can be adopted, and a narrowband handover scheme can be adopted from a narrowband cell to a narrowband cell, and a narrowband handover scheme can be adopted, and the handover from the broadband cell to the narrowband cell is now There are standards and technical specifications not covered.
- the embodiment of the present invention provides a cell handover method, where a terminal and a core network device can implement handover from a broadband cell to a narrowband cell to avoid dropped calls.
- a cell handover method provided by an embodiment of the present invention includes:
- the terminal participates in the current call in the broadband serving cell, and the terminal is in the broadband serving cell and narrowband service The community is registered;
- the terminal acquires information of a traffic channel of a current call in the narrowband target cell
- the terminal switches from the broadband serving cell to the narrowband target cell to continue the current call according to the information of the traffic channel.
- the acquiring, by the terminal, the information of the traffic channel of the current call in the narrowband target cell includes: the terminal requesting the core network device to allocate a traffic channel in the narrowband target cell for the current call; the terminal acquiring the traffic channel Information.
- the method further includes: the terminal receiving the narrowband serving cell Broadcast information sent by the home narrowband core network, the broadcast information includes information of a traffic channel of the narrowband target cell; the terminal acquires a traffic channel list according to the broadcast information; the terminal determines whether the current call service exists in the traffic channel list The information of the channel; if the information of the traffic channel of the current call does not exist in the traffic channel list, the terminal is triggered to request the core network to allocate a traffic channel to the narrowband target cell for the current call.
- the terminal requesting the core network device to allocate a traffic channel to the narrowband target cell for the current call includes:
- the terminal sends a cell handover request to the broadband core network through the broadband cluster base station, where the cell handover request includes the call identifier of the current call and the radio location identification number LAI of the narrowband target cell, so that the broadband core network is based on the narrowband target cell.
- the LAI identifies the narrowband core network to which the narrowband target cell belongs, and acquires information of the traffic channel of the current call in the narrowband target cell;
- the information obtained by the terminal for acquiring the traffic channel includes:
- the terminal acquires information of a traffic channel of the current call from the broadband core network by using the broadband cluster base station; and/or,
- the terminal acquires information of the traffic channel of the current call from the narrowband cluster base station corresponding to the narrowband serving cell, and the information of the traffic channel of the current call is sent by the broadband core network to the narrowband cluster base station.
- the terminal requesting the core network device to allocate a traffic channel to the narrowband target cell for the current call includes:
- the terminal determines whether the current call is a group call and the group belongs to the broadband core network
- the terminal sends a call setup request to the narrowband core network to which the narrowband target cell belongs by using the narrowband cluster base station corresponding to the narrowband target cell, where the call setup request includes the group call
- the group identifier is such that the narrowband core network to which the narrowband target cell belongs sends the call setup request to the group of home broadband core networks, and acquires information of the traffic channel of the current call in the narrowband target cell;
- the information obtained by the terminal for acquiring the traffic channel includes:
- the terminal acquires information about the traffic channel of the current call from the narrowband cluster base station corresponding to the narrowband target cell.
- the terminal requesting the core network device to allocate a traffic channel to the narrowband target cell for the current call includes:
- the terminal determines whether the current call is a group call and the group belongs to the narrowband core network
- the terminal sends a call setup request to the narrowband core network to which the narrowband target cell belongs by using the narrowband cluster base station corresponding to the narrowband target cell, where the call setup request includes the group And the group identity of the call, so that the narrowband core network to which the narrowband target cell belongs sends the call setup request to the group of the home narrowband core network, and acquires information about the service channel of the current call in the narrowband target cell;
- the information obtained by the terminal for acquiring the traffic channel includes:
- the terminal acquires information about the traffic channel of the current call from the narrowband cluster base station corresponding to the narrowband target cell.
- the terminal requesting the core network device to allocate a traffic channel to the narrowband target cell for the current call includes:
- the terminal sends a cell handover request to the unified converged core network by using the broadband cluster base station, where the cell handover request includes the call identifier of the current call and the radio location identification number LAI of the narrowband target cell, so that the unified converged core network according to the narrowband
- the LAI of the target cell and the call identifier are that the current call allocates a traffic channel in the narrowband target cell;
- the information obtained by the terminal for acquiring the traffic channel includes:
- the terminal acquires information of the traffic channel from the broadband cluster base station, and the information of the traffic channel is sent by the unified converged core network to the broadband cluster base station;
- the terminal acquires information of the traffic channel from the narrowband cluster base station corresponding to the narrowband serving cell, and the information of the traffic channel is sent by the unified converged core network to the narrowband cluster base station.
- the terminal requesting the core network device to allocate a traffic channel to the narrowband target cell for the current call includes:
- the terminal determines whether the current call is a group call
- the terminal sends a call setup request to the unified convergence core network by using the narrowband cluster base station corresponding to the narrowband target cell, where the call setup request includes the group identifier of the group call, so that the unified fusion core
- the network allocates a traffic channel in the narrowband target cell for the current call by combining the terminal into the group call according to the group identifier;
- the information obtained by the terminal for acquiring the traffic channel includes:
- the terminal acquires information about the traffic channel of the current call from the narrowband cluster base station corresponding to the narrowband target cell, and the traffic channel information is sent by the unified converged core network to the narrowband cluster base station.
- the information about the service channel of the current call in the narrowband target cell is obtained by the terminal, including:
- the terminal receives broadcast information sent by the narrowband core network to which the narrowband serving cell belongs, and the broadcast information includes information of a traffic channel of the narrowband target cell;
- the terminal acquires a traffic channel list according to the broadcast information
- the terminal acquires information about the traffic channel of the current call in the narrowband target cell from the narrowband cluster base station corresponding to the narrowband serving cell.
- a terminal provided by the embodiment of the present invention includes:
- a calling module configured to participate in a current call in a broadband serving cell, where the terminal is registered in the broadband serving cell and the narrowband serving cell;
- An acquiring module configured to acquire information about a service channel of a current call in a narrowband target cell
- a processing module configured to switch from the broadband serving cell to the narrowband target cell to continue the current call according to the information of the traffic channel acquired by the acquiring module.
- the obtaining module includes:
- a requesting unit configured to request the core network device to allocate a service to the narrowband target cell for the current call channel
- the first acquiring unit is configured to acquire information about the traffic channel.
- the obtaining module further includes:
- a first receiving unit configured to receive broadcast information sent by a narrowband core network to which the narrowband serving cell belongs, where the broadcast information includes information of a traffic channel of the narrowband target cell;
- a second acquiring unit configured to acquire a traffic channel list according to the broadcast information received by the receiving unit
- a first determining unit configured to determine whether the information of the service channel of the current call exists in the service channel list
- the triggering unit is configured to: if the information of the traffic channel of the current call does not exist in the traffic channel list, trigger the requesting core network to allocate a traffic channel to the narrowband target cell for the current call.
- the request unit includes:
- a first processing subunit configured to send a cell handover request to the broadband core network by using the broadband cluster base station, where the cell handover request includes a call identifier of the current call and a radio location identification number LAI of the narrowband target cell, so that the broadband core
- the network may identify the narrowband core network to which the narrowband target cell belongs according to the LAI of the narrowband target cell, and obtain information about the current channel of the current call in the narrowband target cell;
- the first obtaining unit includes:
- a first acquiring subunit configured to acquire, by the broadband cluster base station, information of a traffic channel of the current call from the broadband core network
- the request unit includes:
- a second processing sub-unit configured to determine whether the current call is a group call and the group belongs to a broadband core network
- a first sending subunit configured to send a call setup request to the narrowband core network to which the narrowband target cell belongs by using the narrowband cluster base station corresponding to the narrowband target cell if the current call is a group call and the group belongs to the broadband core network, the call Establishing, in the request, the group identifier of the group call, so that the narrowband core network to which the narrowband target cell belongs sends the call setup request to the group of home broadband core networks, and acquiring the Information of the traffic channel of the current call in the narrowband target cell;
- the first obtaining unit includes:
- a second acquiring subunit configured to acquire information about a traffic channel of the current call from the narrowband cluster base station corresponding to the narrowband target cell.
- the request unit includes:
- a third processing sub-unit configured to determine whether the current call is a group call and the group belongs to a narrowband core network
- a second sending subunit configured to send a call setup request to the narrowband core network to which the narrowband target cell belongs by using the narrowband cluster base station corresponding to the narrowband target cell if the current call is a group call and the group belongs to the narrowband core network, the call
- the group identifier of the group call is included in the establishment request, so that the narrowband core network to which the narrowband target cell belongs is merged into the group call according to the group identifier, and information about the service channel of the current call in the narrowband target cell is obtained.
- the first obtaining unit includes:
- a third acquiring subunit configured to acquire information about a traffic channel of the current call from the narrowband cluster base station corresponding to the narrowband target cell.
- the request unit includes:
- a fourth processing subunit configured to send a cell handover request to the unified converged core network by using the broadband cluster base station, where the cell handover request includes a call identifier of the current call and a radio location identification number LAI of the narrowband target cell, so that the The unified converged core network allocates a traffic channel in the narrowband target cell according to the LAI of the narrowband target cell and the call identifier for the current call;
- the first obtaining unit includes:
- a fourth acquiring subunit configured to acquire information of the traffic channel from the broadband cluster base station, where information of the traffic channel is sent by the unified converged core network to the broadband cluster base station;
- the information of the traffic channel is obtained from the narrowband cluster base station corresponding to the narrowband serving cell, and the information of the traffic channel is sent by the unified convergence core network to the narrowband cluster base station.
- the request unit includes:
- a fifth processing subunit configured to determine whether the current call is a group call
- a third sending subunit configured to send, by the narrowband cluster base station corresponding to the narrowband target cell, a call setup request to the unified converged core network, if the current call is a group call, where the call setup request includes The group identity of the group call, such that the unified convergence core network allocates a traffic channel in the narrowband target cell for the current call by incorporating the terminal into the group call according to the group identity;
- the first obtaining unit includes:
- a fifth obtaining sub-unit configured to acquire information of a traffic channel of the current call from the narrow-band cluster base station corresponding to the narrow-band target cell, where information of the traffic channel of the current call is sent by the unified converged core network to the narrow-band cluster base station.
- the obtaining module includes:
- a second receiving unit configured to receive broadcast information sent by the narrowband serving cell, where the broadcast information includes service channel information of the narrowband target cell;
- a third acquiring unit configured to generate a traffic channel list according to the broadcast information received by the receiving unit
- a second determining unit configured to determine whether the information of the service channel of the current call exists in the service channel list generated by the generating unit
- the processing unit is configured to: if the information of the traffic channel of the current call exists in the traffic channel list, obtain information about the traffic channel of the current call in the narrowband target cell from the narrowband cluster base station corresponding to the narrowband serving cell.
- an embodiment of the present invention provides a cell handover method, including:
- the request of the core network device receiving terminal allocates a traffic channel to the narrowband target cell for the current call, and the terminal participates in the current call in the broadband serving cell, and the terminal registers in both the broadband serving cell and the narrowband serving cell;
- the core network device sends the information of the traffic channel to the terminal, so that the terminal switches from the broadband serving cell to the narrowband target cell to continue the current call according to the information of the traffic channel.
- the request of the core network device to receive the terminal for the current call to allocate the service channel in the narrowband target cell includes:
- the broadband core network receives a cell handover request sent by the terminal through the broadband cluster base station, where the cell handover request includes the call identifier of the current call and the wireless location identification number LAI of the narrowband target cell;
- the broadband core network identifies the narrowband core network to which the narrowband target cell belongs according to the LAI;
- the broadband core network sends a cell handover preparation request to the narrowband core network, and the cell handover preparation is requested. And including the call identifier, so that the narrowband core network allocates a traffic channel for the current call according to the call identifier;
- the broadband core network obtains information of the traffic channel from the narrowband core network through a gateway;
- the sending, by the core network device, the information of the traffic channel to the terminal includes:
- the broadband core network sends the information of the traffic channel to the terminal;
- the broadband core network sends the information of the traffic channel to the narrowband core network to which the narrowband serving cell belongs, so that the narrowband cluster base station corresponding to the narrowband serving cell sends the information of the traffic channel to the terminal.
- the request of the core network device receiving the terminal for the current call to allocate the service channel in the narrowband target cell includes:
- the unified converged core network receives the cell handover request sent by the terminal, where the cell handover request includes the call identifier of the current call and the radio location identification number LAI of the narrowband target cell;
- the unified converged core network allocates a traffic channel to the narrowband target cell according to the call identifier for the current call;
- the sending, by the core network device, the traffic channel information to the terminal includes:
- the unified converged core network sends the information of the traffic channel to the narrowband core network to which the narrowband serving cell belongs, so that the narrowband cluster base station corresponding to the narrowband serving cell sends the information of the traffic channel to the terminal.
- the request of the core network device to receive the terminal for the current call to allocate the service channel in the narrowband target cell includes:
- the narrowband core network to which the narrowband target cell belongs receives a call setup request sent by the terminal, where the call setup request includes the call identifier of the group call;
- the narrowband core network to which the narrowband target cell belongs sends the call setup request to the group of home narrowband core networks, so that the group of home narrowband core networks according to the call identity by incorporating the terminal into the group call is the current call in the narrowband
- the target cell allocates a traffic channel
- the narrowband core network to which the narrowband target cell belongs receives the industry feedback of the group of narrowband core networks Information of the traffic channel;
- the sending, by the core network device, the traffic channel information to the terminal includes:
- the narrowband core network to which the narrowband target cell belongs transmits the information of the traffic channel to the terminal.
- the request of the core network device to receive the terminal for the current call to allocate the service channel in the narrowband target cell includes:
- the narrowband core network to which the narrowband target cell belongs receives a call setup request sent by the terminal, where the call setup request includes the call identifier of the group call;
- the narrowband core network to which the narrowband target cell belongs sends the call setup request to the group of home broadband core networks, so that the group of home broadband core networks according to the call identity by incorporating the terminal into the group call is the current call in the narrowband
- the target cell allocates a traffic channel
- the narrowband core network to which the narrowband target cell belongs receives information of the traffic channel fed back by the group of home broadband core networks;
- the sending, by the core network device, the traffic channel information to the terminal includes:
- the narrowband core network to which the narrowband target cell belongs transmits the information of the traffic channel to the terminal.
- the request of the core network device receiving the terminal for the current call to allocate the service channel in the narrowband target cell includes:
- the unified convergence core network receives a call setup request sent by the terminal, where the call setup request includes a call identifier of the group call;
- the unified converged core network allocates a traffic channel in the narrowband target cell for the current call according to the call identity of the group call by incorporating the terminal into the group call;
- the sending, by the core network device, the traffic channel information to the terminal includes:
- the unified converged core network sends the information of the traffic channel to the terminal.
- a core network device in the embodiment of the present invention, including:
- An allocation module configured to receive, by the terminal, a service channel for the current call in the narrowband target cell, where the terminal participates in the current call in the broadband serving cell, where the terminal is registered in the broadband serving cell and the narrowband serving cell;
- a sending module configured to send information of the traffic channel to the terminal, so that the terminal according to the The information of the traffic channel is handed over from the broadband serving cell to the narrowband target cell to continue the current call.
- the allocation module includes:
- the first receiving unit is configured to send, by the terminal, a cell handover request sent by the broadband cluster base station, where the cell handover request includes the call identifier of the current call and the wireless location identification number LAI of the narrowband target cell in the cell handover request;
- An identifying unit configured to identify, according to the LAI, a narrowband core network to which the narrowband target cell belongs;
- a first sending unit configured to send a cell handover preparation request to the narrowband core network, where the cell handover preparation request includes the call identifier, so that the narrowband core network allocates a traffic channel for the current call according to the call identifier;
- a first acquiring unit configured to obtain, by using a gateway, information about the traffic channel from the narrowband core network
- the sending module includes:
- a second sending unit configured to send information of the traffic channel to the terminal
- the allocation module includes: a second receiving unit, configured to receive a cell handover request sent by the terminal, where the cell handover request includes a call identifier of the current call. And a wireless location identification number LAI of the narrowband target cell;
- a processing unit configured to allocate a traffic channel to the narrowband target cell according to the call identifier for the current call
- the sending module includes:
- the third sending unit is configured to send the information of the traffic channel to the narrowband core network to which the narrowband serving cell belongs, so that the narrowband cluster base station corresponding to the narrowband serving cell sends the information of the traffic channel to the terminal.
- the allocation module when the core network device is a narrowband core network to which the narrowband target cell belongs, the allocation module includes:
- a third receiving unit configured to: when the terminal determines that the current call is a group call and the group belongs to the narrowband core network, receive a call setup request sent by the terminal, where the call setup request includes a call identifier of the group call;
- a fourth sending unit configured to send the call setup request to the group of home narrowband core networks, so that the group of home narrowband core networks according to the call identity by incorporating the terminal into the group call is the current call in the narrowband target cell Allocating traffic channels;
- a fourth receiving unit configured to receive information about the traffic channel fed back by the group of the narrowband core network
- the sending module includes:
- a fifth sending unit configured to send information of the traffic channel to the terminal.
- the allocation module when the core network device is a narrowband core network to which the narrowband target cell belongs, the allocation module includes:
- a fifth receiving unit configured to: when the terminal determines that the current call is a group call and the group belongs to the broadband core network, receive a call setup request sent by the terminal, where the call setup request includes a call identifier of the group call;
- a sixth sending unit configured to send the call setup request to the group of home broadband network, so that the group of home broadband core networks according to the call identity by incorporating the terminal into the group call is the current call in the narrowband target cell Allocating a traffic channel;
- a sixth receiving unit configured to receive information about the traffic channel fed back by the group of home broadband core networks;
- the sending module includes:
- a seventh sending unit configured to send information of the traffic channel to the terminal.
- the allocation module when the core network device is the unified and integrated core network, the allocation module includes:
- a seventh receiving unit configured to receive a call setup request sent by the terminal, where the call setup request includes a call identifier of the group call;
- An allocating unit configured to allocate a traffic channel to the narrowband target cell for the current call by combining the terminal into the group call according to the call identity of the group call; the sending module includes:
- an eighth sending unit configured to send information of the traffic channel to the terminal.
- an embodiment of the present invention provides a terminal, including:
- Transceiver processor and bus
- the transceiver is coupled to the processor via the bus;
- the processor has the following functions: participating in a current call in a broadband serving cell, and the terminal is registered in both the broadband serving cell and the narrowband serving cell;
- the transceiver has the function of acquiring a traffic channel of a current call in a narrowband target cell information
- the processor has a function of switching from the broadband serving cell to the narrowband target cell to continue the current call according to the information of the traffic channel acquired by the acquiring module.
- a core network device in the embodiment of the present invention, including:
- Transceiver processor and bus
- the transceiver is coupled to the processor via the bus;
- the processor has the following functions: the request of the receiving terminal allocates a traffic channel to the narrowband target cell for the current call, and the terminal participates in the current call in the broadband serving cell, and the terminal registers in both the broadband serving cell and the narrowband serving cell;
- the transceiver has the function of transmitting the traffic channel information acquired by the processing module to the terminal, so that the terminal switches from the broadband serving cell to the narrowband target cell to continue the current call according to the information of the traffic channel.
- the terminal that participates in the current call in the broadband serving cell can obtain the information of the current channel of the current call existing in the narrowband target cell, and can switch from the broadband serving cell to the narrowband target cell according to the obtained information of the traffic channel.
- the current call through the above scheme, enables the dual-mode terminal to switch from the broadband serving cell to the narrow-band target cell when moving to a region where the broadband wireless signal coverage is not good and the narrow-band wireless signal covers well, and continues to hold the call to avoid dropped calls.
- FIG. 1 is a schematic structural diagram of a network architecture of a gateway interconnection
- FIG. 2 is a schematic structural diagram of a unified and converged network architecture
- FIG. 3 is a schematic flowchart of a cell handover method according to an embodiment of the present invention.
- FIG. 4 is a schematic diagram of signaling interaction of a cell handover method according to an embodiment of the present invention.
- FIG. 5 is a schematic diagram of another signaling interaction of a cell handover method according to an embodiment of the present invention.
- FIG. 6 is a schematic diagram of another signaling interaction of a cell handover method according to an embodiment of the present invention.
- FIG. 7 is a schematic diagram of another signaling interaction of a cell handover method according to an embodiment of the present invention.
- FIG. 8 is a schematic diagram of another signaling interaction of a cell handover method according to an embodiment of the present invention.
- FIG. 9 is a schematic diagram of another signaling interaction of a cell handover method according to an embodiment of the present invention.
- FIG. 10 is a schematic diagram of another signaling interaction of a cell handover method according to an embodiment of the present invention.
- FIG. 11 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
- FIG. 12 is another schematic structural diagram of a terminal according to an embodiment of the present invention.
- FIG. 13 is a schematic structural diagram of a core network device according to an embodiment of the present invention.
- FIG. 14 is another schematic structural diagram of a core network device according to an embodiment of the present invention.
- the cell handover method provided by the embodiment of the present invention can be applied to a network architecture of a gateway interconnection, and can also be applied to a unified and converged network architecture.
- the terminal mentioned in the embodiment of the present invention is a dual mode terminal supporting both a broadband system and a narrowband system, and the terminal is in a dual standby mode, that is, the terminal is simultaneously registered in the broadband serving cell and the narrowband serving cell and is in the network, and the terminal is passing the broadband.
- the serving cell participates in a call (single call or group call).
- the cell handover method provided by the embodiment of the present invention enables the terminal to switch from the broadband serving cell to the narrowband target cell when moving to an area where the coverage of the broadband wireless signal is not good and the coverage of the narrowband wireless signal is good, and the call is continued to avoid call drop.
- the terminal mentioned in the embodiment of the present invention may be a walkie-talkie.
- the cell handover method in this embodiment includes:
- the terminal participates in a current call in a broadband serving cell, and the terminal is registered in both the broadband serving cell and the narrowband serving cell.
- the terminal initiates a current call in the broadband serving cell, and the terminal is a cluster dual mode terminal. That is, the terminal can make a call in the broadband serving cell, or can make a call in the narrowband serving cell.
- the terminal acquires information about a service channel of a current call existing in the narrowband target cell.
- the terminal can simultaneously monitor the current serving cell of the broadband cluster system (ie, broadband service) Signal quality of the cell (eg, measurable from reference signal received power RSRP or reference signal received quality RSRQ) and signal quality of the current serving cell (ie, narrowband serving cell) of the narrowband trunk system and its neighbors (eg, based on received signal strength) Indicating the RSSI or the error rate BER to determine whether the handover condition is currently satisfied by a preset decision algorithm, for example, when the signal quality of the broadband serving cell is lower than the first preset threshold, and the signal of the narrowband serving cell or its neighboring cell If the quality is higher than the second preset threshold, it is considered that the switching condition is met, and the second preset threshold is greater than or equal to the first preset threshold.
- a preset decision algorithm for example, when the signal quality of the broadband serving cell is lower than the first preset threshold, and the signal of the narrowband serving cell or its neighboring cell If the quality is higher than the second preset threshold, it is considered that the switching condition is
- the terminal needs to acquire information of the traffic channel of the current call existing in the narrowband target cell.
- the traffic channel of the current call existing in the narrowband target cell may be allocated before the handover (for example, the narrowband target cell itself has a member belonging to the current call, the narrowband target cell has participated in the current call); or the narrowband target cell exists.
- the traffic channel of the current call is allocated in real time during handover (for example, the narrowband target cell does not participate in the current call, and the narrowband core network to which the narrowband target cell belongs receives the request of the terminal, and controls the narrowband cluster base station corresponding to the narrowband target cell, in the narrowband target The cell allocates a traffic channel to the current call in real time).
- the information of the traffic channel of the current call existing in the narrowband target cell may include a channel number (Channel No), a slot number (Slot No), an Align Mode, and the like of the traffic channel.
- the narrowband core network to which the narrowband target cell belongs may also send information of the control channel of the narrowband target cell to the terminal.
- the terminal switches from the broadband serving cell to the narrowband target cell according to the obtained information of the traffic channel to continue the current call.
- the method for the terminal to acquire the information of the traffic channel is as follows: the network structure of the gateway interconnection
- the narrowband cluster base station corresponding to the narrowband target cell is controlled by the narrowband core network to which the narrowband target cell belongs, and the traffic channel is allocated for the current call in the narrowband target cell.
- the information of the traffic channel is fed back to the first requesting member, and the narrowband core network to which the narrowband target cell belongs is also sent to the narrowband service through the narrowband core network to which the narrowband serving cell belongs.
- the narrow-band cluster base station corresponding to the cell may be sent by the narrow-band cluster base station corresponding to the narrow-band serving cell when the terminal is to be switched to the narrow-band target cell and needs to obtain the information of the service channel.
- the broadcast message is sent to obtain the information of the traffic channel of the current call existing in the narrowband target cell; and in the unified network architecture, when the first member of the current call requests the information of the traffic channel of the narrowband target cell, the narrowband target cell corresponds to
- the narrowband cluster base station is controlled by the unified converged core network, and allocates a traffic channel for the current call in the narrowband target cell. After the allocation is completed, the information of the traffic channel is fed back to the first requesting member, and the unified converged core network will also be The information of the traffic channel is sent to the narrowband cluster base station corresponding to the narrowband serving cell.
- the terminal may send the broadcast message through the narrowband cluster base station corresponding to the narrowband serving cell. Obtaining information of a traffic channel of a current call existing in the narrowband target cell.
- FIG. 9 to FIG. 10 correspond to the unified and integrated network architecture.
- the narrowband cluster base station corresponding to the narrowband target cell is allocated to the current call in real time under the control of the narrowband core network to which the narrowband target cell belongs, and the current call is a single call, and the terminal is currently In the broadband serving cell, to switch to the narrowband target cell to continue the current call, the specific methods include:
- the terminal After determining that the cell handover is required, the terminal sends a cell handover request to the broadband core network through the broadband cluster base station, where the cell handover request includes a call identifier of the current call, and a LAI of the narrowband target cell;
- the broadband core network queries the calling and called addresses according to the call identity, obtains the narrowband core network to which the narrowband target cell belongs according to the LAI of the narrowband target cell, and sends a SIP REFER message to the gateway (Gateway, GW), where the SIP REFER message carries the calling and called addresses. And the LAI of the narrowband target cell;
- the gateway converts the SIP REFER message into PSIP PREPARE signaling, and sends PSIP PREPARE signaling to the narrowband core network to which the narrowband target cell belongs;
- the narrowband core network to which the narrowband target cell belongs returns a PSIP 200 OK to the gateway, and the PSIP 200 OK carries the handover number (Handover No).
- the gateway After the gateway obtains the handover number, the gateway sends a PSIP INVITE request to the narrowband core network to which the narrowband target cell belongs.
- the PSIP INVITE request includes the calling and called addresses and the handover number.
- the narrowband core network to which the narrowband target cell belongs controls the narrowband cluster base station corresponding to the narrowband target cell to allocate the traffic channel for the current call in the narrowband target cell. And then send the PSIP 200 OK to the gateway, which carries the narrowband target in the PSIP 200 OK Information of the traffic channel allocated for the current call in the cell;
- the gateway returns a SIP 200 OK to the broadband core network, where the SIP 200 OK includes information about the traffic channel of the current call in the narrowband target cell, and then the gateway sends a PSIP ACK to the narrowband core network to which the narrowband target cell belongs;
- the broadband core network After receiving the SIP 200 OK carrying the information of the traffic channel of the current call in the narrowband target cell, the broadband core network sends a cell handover response to the terminal through the broadband cluster base station, where the cell handover response includes the service of the current call in the narrowband target cell.
- Channel information
- the terminal After receiving the cell handover response, the terminal switches from the broadband serving cell to the narrowband target cell to continue the current call.
- the information of the service channel of the current call in the narrowband target cell is sent to the terminal through the broadband air interface.
- the information of the service channel in the narrowband target cell that exists on the current call may be sent to the terminal through the narrowband air interface. That is, after the broadband core network receives the SIP 200 OK carrying the information of the traffic channel of the current call in the narrowband target cell, the SIP NOTIFY may also be sent to the gateway, and after the gateway receives the SIP NOTIFY, the narrowband core belongs to the narrowband serving cell.
- the network sends a PSIP NOTIFY to the narrow-band cluster base station corresponding to the narrow-band serving cell
- the narrow-band cluster base station corresponding to the narrow-band serving cell sends the P_BCAST to the terminal after receiving the PSIP NOTIFY, wherein the SIP NOTIFY, PSIP NOTIFY, and P_BCAST both exist in the narrow-band target cell.
- information of the traffic channel in which the current call exists in the narrowband target cell may be simultaneously transmitted to the terminal through the broadband air interface and the narrowband air interface.
- the method shown in FIG. 4 is also applicable to the traffic channel of the current call existing in the narrowband target cell, which is allocated before the handover, but the narrowband target cell does not include the narrowband target cell in the neighboring cell list.
- the narrowband core network to which the target cell belongs directly returns the PSIP200 OK carrying the information of the traffic channel to the gateway, and the subsequent gateway does not need to send the PSIP INVITE to the narrowband core network to which the narrowband target cell belongs. Directly feed the SIP 200 OK to the broadband core network.
- the narrowband cluster base station corresponding to the narrowband target cell is allocated for the current call in real time under the control of the narrowband core network to which the narrowband target cell belongs, and the current call is a group call, and the group belongs to the broadband.
- the core network, the terminal is currently in the broadband serving cell, and wants to switch to the narrowband target cell to continue the current call, and the specific methods include:
- the terminal After determining that the cell handover is required, the terminal sends a cell handover request to the broadband core network through the broadband cluster base station, where the cell handover request includes a call identifier of the current call, and a LAI of the narrowband target cell;
- the broadband core network queries the calling and called address according to the call identifier, obtains the narrowband core network to which the narrowband target cell belongs according to the LAI of the narrowband target cell, and sends a SIP REFER message to the gateway, where the SIP REFER message carries the identifier of the terminal that initiates the cell handover request, The primary and called addresses and the LAI of the narrowband target cell;
- the gateway converts the SIP REFER message into PSIP PREPARE signaling, and sends PSIP PREPARE signaling to the narrowband core network to which the narrowband target cell belongs;
- the narrowband core network to which the narrowband target cell belongs returns a PSIP 200 OK to the gateway, and the PSIP 200 OK carries the handover number (Handover No).
- the gateway sends a PSIP INVITE request to the narrowband core network to which the narrowband target cell belongs.
- the PSIP INVITE request includes the calling and called addresses and the handover number.
- the narrowband core network to which the narrowband target cell belongs controls the narrowband cluster base station corresponding to the narrowband target cell to allocate the traffic channel for the current call in the narrowband target cell. And then sending a PSIP 200 OK to the gateway, the PSIP 200 OK carrying information of the traffic channel allocated for the current call in the narrowband target cell;
- the gateway sends a PSIP ACK to the narrowband core network to which the narrowband target cell belongs, and then the gateway returns a SIP 200 OK to the broadband core network, where the SIP 200 OK includes information of the service channel in the narrowband target cell where the current call exists;
- the broadband core network After receiving the SIP 200 OK carrying the information of the traffic channel of the current call in the narrowband target cell, the broadband core network sends a cell handover response to the terminal through the broadband cluster base station, where the cell handover response includes the service of the current call in the narrowband target cell.
- Channel information
- the terminal After receiving the cell handover response, the terminal switches from the broadband serving cell to the narrowband target cell to continue the current call.
- the information of the service channel of the current call in the narrowband target cell is sent to the terminal through the broadband air interface.
- the information of the service channel in the narrowband target cell that exists on the current call may be sent to the terminal through the narrowband air interface. That is, after the broadband core network receives the SIP 200 OK carrying the information of the traffic channel of the current call in the narrowband target cell, the SIP NOTIFY may also be sent to the gateway, and after the gateway receives the SIP NOTIFY, the narrowband core belongs to the narrowband serving cell.
- the network Sending a PSIP NOTIFY to the narrow-band cluster base station corresponding to the narrow-band serving cell, and the narrow-band cluster base station corresponding to the narrow-band serving cell sends the P_BCAST to the terminal after receiving the PSIP NOTIFY, where the SIP NOTIFY, the PSIP NOTIFY, and the P_BCAST each include the current presence in the narrow-band target cell.
- Information about the traffic channel of the call may be simultaneously transmitted to the terminal through the broadband air interface and the narrowband air interface.
- the method shown in FIG. 5 is also applicable to the traffic channel of the current call existing in the narrowband target cell, which is allocated before the handover, but the narrowband target cell does not include the narrowband target cell in the neighboring cell list.
- the narrowband core network to which the target cell belongs directly returns the PSIP200 OK carrying the information of the traffic channel to the gateway, and the subsequent gateway does not need to send the PSIP INVITE to the narrowband core network to which the narrowband target cell belongs. Directly feed the SIP 200 OK to the broadband core network.
- the narrowband cluster base station corresponding to the narrowband target cell is allocated for the current call in real time under the control of the narrowband core network to which the narrowband target cell belongs, and the current call is a group call, and the group belongs to a narrowband.
- the core network, the terminal is currently in the broadband serving cell, and wants to switch to the narrowband target cell to continue the current call, and the specific methods include:
- the terminal After determining that the cell handover is required, the terminal sends a cell handover request to the broadband core network through the broadband cluster base station, where the cell handover request includes a call identifier of the current call, and a LAI of the narrowband target cell;
- the broadband core network queries the calling and called address according to the call identifier, obtains the narrowband core network to which the narrowband target cell belongs according to the LAI of the narrowband target cell, and sends a SIP REFER message to the gateway, where the SIP REFER message carries the identifier of the terminal that initiates the cell handover request, The primary and called addresses and the LAI of the narrowband target cell;
- the gateway converts the SIP REFER message into PSIP PREPARE signaling, and sends PSIP PREPARE signaling to the narrowband core network to which the group belongs;
- the group-owned narrowband core network forwards the PSIP PREPARE signaling to the narrowband core network to which the narrowband target cell belongs;
- the narrowband core network to which the narrowband target cell belongs returns a PSIP 200 OK to the narrowband core network to which the group belongs, and the PSIP 200 OK carries the handover number (Handover No), and the narrowband core network to which the group belongs obtains the handover number to the narrowband target
- the narrowband core network to which the cell belongs sends a PSIP INVITE request. Therefore, the PSIP INVITE request includes the calling and called address and the handover number, and the narrowband core network to which the narrowband target cell belongs receives the PSIP INVITE request, and controls the narrowband cluster base station corresponding to the narrowband target cell to allocate the service to the current call in the narrowband target cell.
- the channel then sends a PSIP 200 OK to the narrowband core network to which the group belongs, and the PSIP 200 OK carries information of the traffic channel allocated for the current call in the narrowband target cell;
- the narrowband core network to which the group belongs sends a PSIP ACK to the narrowband core network to which the narrowband target cell belongs, and then forwards the PSIP 200 OK to the gateway;
- the gateway returns a SIP 200 OK to the broadband core network, where the SIP 200 OK includes information about the service channel of the current call in the narrowband target cell;
- the broadband core network After receiving the SIP 200 OK carrying the information of the traffic channel of the current call in the narrowband target cell, the broadband core network sends a cell handover response to the terminal through the broadband cluster base station, where the cell handover response includes the service of the current call in the narrowband target cell.
- Channel information
- the terminal After receiving the cell handover response, the terminal switches from the broadband serving cell to the narrowband target cell to continue the current call.
- the information of the service channel of the current call in the narrowband target cell is sent to the terminal through the broadband air interface.
- the information of the service channel in the narrowband target cell that exists on the current call may be sent to the terminal through the narrowband air interface. That is, after receiving the PSIP 200 OK carrying the information of the traffic channel of the current call in the narrowband target cell, the narrowband core network to which the group belongs may also pass the narrowband core network to which the narrowband serving cell belongs to the narrowband trunk base station corresponding to the narrowband serving cell.
- the narrowband trunking base station corresponding to the narrowband serving cell receives the PSIP STOPIFY, and then sends the P_BCAST to the terminal, where the PSIP NOTIFY and the P_BCAST both contain the information of the traffic channel in the narrowband target cell where the current call exists.
- information of the traffic channel in which the current call exists in the narrowband target cell may be simultaneously transmitted to the terminal through the broadband air interface and the narrowband air interface.
- the method shown in FIG. 6 is also applicable to the traffic channel of the current call existing in the narrowband target cell, which is allocated before the handover, but the narrowband target cell does not include the narrowband target cell in the neighboring cell list.
- the narrowband core network to which the target cell belongs directly returns the PSIP200 OK carrying the information of the traffic channel to the gateway, and the narrowband core network to which the subsequent group belongs does not need to be narrowband to the narrowband target cell.
- Core Network Send the PSIP INVITE and directly feed back to the gateway the PSIP 200 OK carrying the information of the traffic channel.
- the terminal performs cell handover by initiating a cell handover request in the broadband cluster base station.
- the terminal may also correspond to the narrowband target cell.
- the narrowband cluster base station directly initiates a call setup request to implement cell handover. For details, refer to FIG. 7 and FIG. 8.
- the narrowband cluster base station corresponding to the narrowband target cell is allocated for the current call in real time under the control of the narrowband core network to which the narrowband target cell belongs, and the current call is a group call, and the group belongs to the broadband core network, and the terminal is currently in the
- the broadband serving cell wants to switch to the narrowband target cell to continue the current call, and the specific methods include:
- the terminal After determining that the cell handover is required, the terminal sends a call setup request to the narrowband core network to which the narrowband target cell belongs by using the narrowband cluster base station corresponding to the narrowband target cell, where the call setup request includes the group identifier of the group call, and the group identifier may be a group address.
- the call setup request may further include a call type (ie, a group call), an address of the terminal, and the like;
- the narrowband core network to which the narrowband target cell belongs sends a PSIP INVITE message to the gateway, where the PSIP INVITE message includes the group identifier, the address of the terminal, and the like;
- the gateway converts the PSIP INVITE message into a SIP INVITE message, and sends the SIP INVITE message to the broadband core network;
- the broadband core network finds that the group call identified by the group identifier has been established, so the terminal is directly incorporated into the existing group call as a group member, and then sends a SIP 200 OK to the gateway, and the SIP 200 OK includes the group (Merge Group) and the calling address of the group call;
- the gateway sends a PSIP 200 OK to the narrowband core network to which the narrowband target cell belongs, and the PSIP 200 OK includes a Merge Group identifier and a calling address of the group call;
- the narrowband core network to which the narrowband target cell belongs After receiving the PSIP 200 OK, the narrowband core network to which the narrowband target cell belongs receives the PSIP ACK, and after receiving the PSIP ACK, the gateway sends a SIP ACK to the broadband core network; then the narrowband core network to which the narrowband target cell belongs controls the narrowband target cell.
- the narrowband cluster base station allocates a traffic channel for the current call in the narrowband target cell, and after the allocation is completed, sends a call setup response to the terminal through the narrowband cluster base station corresponding to the narrowband target cell, where the call setup response includes the current call service existing in the narrowband target cell.
- Channel information
- the terminal After receiving the call setup response, the terminal switches from the broadband serving cell to the narrowband target cell to continue the current call.
- the method shown in FIG. 7 is also applicable to the traffic channel of the current call existing in the narrowband target cell, which is allocated before the handover, but the narrowband target cell does not include the narrowband target cell in the neighboring cell list.
- the narrowband The narrowband core network to which the target cell belongs sends a PSIP ACK to the gateway, and directly sends a call setup response carrying the information of the traffic channel to the terminal through the narrowband cluster base station corresponding to the narrowband target cell, and does not need to allocate the traffic channel again.
- the narrowband cluster base station corresponding to the narrowband target cell is allocated for the current call in real time under the control of the narrowband core network to which the narrowband target cell belongs, and the current call is a group call, and the group belongs to the narrowband core network, and the terminal is currently in the network.
- the broadband serving cell wants to switch to the narrowband target cell to continue the current call, and the specific methods include:
- the terminal After determining that the cell handover is required, the terminal sends a call setup request to the narrowband core network to which the narrowband target cell belongs by using the narrowband cluster base station corresponding to the narrowband target cell, where the call setup request includes the group identifier of the group call, and the group identifier may be a group address.
- the call setup request may further include a call type (ie, a group call), an address of the terminal, and the like;
- the narrowband core network to which the narrowband target cell belongs sends a PSIP INVITE message to the narrowband core network to which the group belongs, and the PSIP INVITE message includes the group identifier, the address of the terminal, and the like;
- the group-owned narrowband core network finds that the group call identified by the group identifier has been established, so the terminal is directly incorporated into the existing group call as a group member, and then sends a PSIP 200 OK to the narrowband core network to which the narrowband target cell belongs.
- the PSIP 200 OK includes a Merge Group identifier and a calling address of the group call;
- the narrowband core network to which the narrowband target cell belongs After receiving the PSIP 200 OK, the narrowband core network to which the narrowband target cell belongs sends a PSIP ACK to the narrowband core network to which the group call belongs, and then controls the narrowband cluster base station corresponding to the narrowband target cell to allocate a traffic channel for the current call in the narrowband target cell, and the allocation is completed. And transmitting, by the narrowband cluster base station corresponding to the narrowband target cell, a call setup response, where the call setup response includes information of a traffic channel of the current call existing in the narrowband target cell;
- the terminal After receiving the call setup response, the terminal switches from the broadband serving cell to the narrowband target cell to continue the current call.
- the method shown in FIG. 8 is also applicable to the traffic channel of the current call existing in the narrowband target cell.
- the narrowband core network to which the narrowband target cell belongs sends the PSIP ACK to the gateway, and directly passes through the narrowband target cell.
- the narrowband cluster base station may send a call setup response carrying the information of the traffic channel to the terminal, and does not need to allocate the traffic channel again.
- the above embodiments describe the method for the terminal to obtain the information of the current traffic channel when the traffic channel is allocated in real time under the network architecture of the gateway interconnection.
- the following embodiments will introduce the unified convergence network architecture, when the traffic channel For the method of real-time allocation, the terminal acquires the information of the current traffic channel, please refer to FIG. 9 and FIG.
- the traffic channel is a narrowband cluster base station corresponding to the narrowband target cell, and is allocated to the current call in real time under the control of the unified convergence core network.
- the current call is a single call or a group call, and the terminal is currently in a broadband serving cell, and is to be switched.
- the current call is continued to the narrowband target cell, and the specific methods include:
- the terminal After determining that the cell handover is required, the terminal sends a cell handover request to the unified converged core network through the broadband cluster base station, where the cell handover request includes a call ID of the current call, and a LAI of the narrowband target cell;
- the unified converged core network controls the narrowband cluster base station corresponding to the narrowband target cell to allocate a traffic channel to the current call in the narrowband target cell.
- the cell handover response is sent to the terminal through the broadband cluster base station, where the cell handover response includes the current presence in the narrowband target cell.
- the information of the traffic channel of the call, and the information about the control channel of the narrowband target cell may also be included in the cell handover response;
- the terminal After receiving the cell handover response, the terminal switches from the broadband serving cell to the narrowband target cell to continue the current call.
- the information of the service channel of the current call in the narrowband target cell is sent to the terminal through the broadband air interface.
- the information of the service channel in the narrowband target cell that exists on the current call may be sent to the terminal through the narrowband air interface.
- the unified converged core network may also send P_BCAST to the terminal through the narrowband cluster base station corresponding to the narrowband serving cell, where P_BCAST includes information of the service channel in the narrowband target cell where the current call exists.
- information of the traffic channel in which the current call exists in the narrowband target cell may be simultaneously transmitted to the terminal through the broadband air interface and the narrowband air interface.
- the method shown in FIG. 9 is also applicable to the traffic channel of the current call existing in the narrowband target cell, which is allocated before the handover, but the neighboring cell list of the narrowband serving cell does not include the narrowband target cell.
- the unified convergence core network after receiving the cell handover request sent by the broadband cluster base station, the unified convergence core network directly transmits the cell handover response carrying the information of the traffic channel to the terminal through the broadband cluster base station, and does not need to allocate the service again. channel.
- the narrowband cluster base station corresponding to the narrowband target cell is allocated for the current call in real time under the control of the unified converged core network, and the current call is a group call, and the terminal is currently in a broadband serving cell, and wants to switch to the narrowband target cell.
- the current call including:
- the terminal After determining that the cell handover is required, the terminal sends a call setup request (C_RAND) to the unified converged core network through the narrowband cluster base station corresponding to the narrowband target cell, where the call setup request includes the group identifier of the group call, and the group identifier may be a group address, and
- the call setup request may further include a call type (ie, a group call), an address of the terminal, and the like;
- the unified converged core network finds that the group call identified by the group identifier is established, so the terminal is directly incorporated into the existing group call as a group member, and then the narrowband target base station corresponding to the narrowband target cell is controlled to be the current in the narrowband target cell.
- the call setup response (MT_GRANT) is sent to the terminal through the narrowband cluster base station corresponding to the narrowband target cell, and the call setup response includes the information of the service channel of the current call in the narrowband target cell, and the call setup is performed.
- the response may also include information of a control channel of the narrowband target cell;
- the terminal After receiving the call setup response, the terminal switches from the broadband serving cell to the narrowband target cell to continue the current call.
- the method shown in FIG. 10 is also applicable to the traffic channel of the current call existing in the narrowband target cell, which is allocated before the handover, but the narrowband target cell does not include the narrowband target cell in the neighboring cell list.
- the terminal 1100 of this embodiment includes:
- the calling module 1101 is configured to participate in a current call in a broadband serving cell, where the terminal is registered in both the broadband serving cell and the narrowband serving cell;
- the obtaining module 1102 is configured to acquire information about a service channel of a current call in the narrowband target cell.
- the processing module 1103 is configured to use the information about the traffic channel acquired by the acquiring module from the broadband The serving cell switches to the narrowband target cell to continue the current call.
- the obtaining module 1102 includes:
- a requesting unit configured to request the core network device to allocate a traffic channel to the narrowband target cell for the current call
- the first acquiring unit is configured to acquire information about the traffic channel.
- the obtaining module 1102 further includes:
- a first receiving unit configured to receive broadcast information sent by a narrowband core network to which the narrowband serving cell belongs, where the broadcast information includes information of a traffic channel of the narrowband target cell;
- a second acquiring unit configured to acquire a traffic channel list according to the broadcast information received by the receiving unit
- a first determining unit configured to determine whether the information of the service channel of the current call exists in the service channel list
- the triggering unit is configured to: if the information of the traffic channel of the current call does not exist in the traffic channel list, trigger the requesting core network device to allocate a traffic channel to the narrowband target cell for the current call.
- the request unit includes:
- a first processing subunit configured to send a cell handover request to the broadband core network by using the broadband cluster base station, where the cell handover request includes a call identifier of the current call and a radio location identification number LAI of the narrowband target cell, so that the broadband core
- the network may identify the narrowband core network to which the narrowband target cell belongs according to the LAI of the narrowband target cell, and obtain information about the current channel of the current call in the narrowband target cell;
- the first obtaining unit includes:
- a first acquiring subunit configured to acquire, by the broadband cluster base station, information of a traffic channel of the current call from the broadband core network
- the request unit includes:
- a second processing sub-unit configured to determine whether the current call is a group call and the group belongs to a broadband core network
- a first sending subunit configured to: if the current call is a group call and the group belongs to a broadband core network, pass The narrowband cluster base station corresponding to the narrowband target cell sends a call setup request to the narrowband core network to which the narrowband target cell belongs, where the call setup request includes the group identifier of the group call, so that the narrowband core network to which the narrowband target cell belongs.
- the group home broadband core network sends the call setup request, and acquires information about the service channel of the current call in the narrowband target cell;
- the first obtaining unit includes:
- a second acquiring subunit configured to acquire information about a traffic channel of the current call from the narrowband cluster base station corresponding to the narrowband target cell.
- the request unit includes:
- a third processing sub-unit configured to determine whether the current call is a group call and the group belongs to a narrowband core network
- a second sending subunit configured to send a call setup request to the narrowband core network to which the narrowband target cell belongs by using the narrowband cluster base station corresponding to the narrowband target cell if the current call is a group call and the group belongs to the narrowband core network, the call
- the group identifier of the group call is included in the establishment request, so that the narrowband core network to which the narrowband target cell belongs is merged into the group call according to the group identifier, and information about the service channel of the current call in the narrowband target cell is obtained.
- the first obtaining unit includes:
- a third acquiring subunit configured to acquire information about a traffic channel of the current call from the narrowband cluster base station corresponding to the narrowband target cell.
- the request unit includes:
- a fourth processing subunit configured to send a cell handover request to the unified converged core network by using the broadband cluster base station, where the cell handover request includes a call identifier of the current call and a radio location identification number LAI of the narrowband target cell, so that the The unified converged core network allocates a traffic channel in the narrowband target cell according to the LAI of the narrowband target cell and the call identifier for the current call;
- the first obtaining unit includes:
- a fourth acquiring subunit configured to acquire information of the traffic channel from the broadband cluster base station, where information of the traffic channel is sent by the unified converged core network to the broadband cluster base station;
- the information of the traffic channel is obtained from the narrowband cluster base station corresponding to the narrowband serving cell, and the information of the traffic channel is sent by the unified convergence core network to the narrowband cluster base station.
- the request unit includes:
- a fifth processing subunit configured to determine whether the current call is a group call
- a third sending sub-unit configured to send, by the narrow-band cluster base station corresponding to the narrow-band target cell, a call setup request to the unified converged core network, where the current call is a group call, where the call setup request includes a group identifier of the group call, So that the unified converged core network allocates a traffic channel in the narrowband target cell for the current call by incorporating the terminal into the group call according to the group identifier;
- the first obtaining unit includes:
- a fifth obtaining sub-unit configured to acquire information of a traffic channel of the current call from the narrow-band cluster base station corresponding to the narrow-band target cell, where information of the traffic channel of the current call is sent by the unified converged core network to the narrow-band cluster base station.
- the obtaining module 1102 includes:
- a second receiving unit configured to receive broadcast information sent by the narrowband serving cell, where the broadcast information includes service channel information of the narrowband target cell;
- a third acquiring unit configured to generate a traffic channel list according to the broadcast information received by the receiving unit
- a second determining unit configured to determine whether the information of the service channel of the current call exists in the service channel list generated by the generating unit
- the processing unit is configured to: if the information of the traffic channel of the current call exists in the traffic channel list, obtain information about the traffic channel of the current call in the narrowband target cell from the narrowband cluster base station corresponding to the narrowband serving cell.
- the terminal in the embodiment of the present invention may perform the cell handover method in any one of the method embodiments of FIG. 3 to FIG. 10.
- the technical implementation process and the technical effect may refer to the detailed description of the corresponding method embodiment, and details are not described herein again.
- the terminal 1200 in this embodiment includes:
- transceiver 1201 a transceiver 1201, a processor 1202 and a bus 1203;
- the transceiver 1201 is connected to the processor 1202 through the bus 1203;
- the bus 1203 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus.
- PCI peripheral component interconnect
- EISA extended industry standard architecture
- the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 12, but it does not mean that there is only one bus or one type of bus.
- the processor 1202 may be a central processing unit (CPU), a network processor (NP) or a combination of a CPU and an NP.
- CPU central processing unit
- NP network processor
- the processor 1202 may further include a hardware chip.
- the hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD) or a combination thereof.
- the PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a general array logic (GAL) or any combination.
- the processor 1202 has the following functions: participating in a current call in a broadband serving cell, where the terminal is registered in both the broadband serving cell and the narrowband serving cell;
- the transceiver 1201 has the function of: acquiring information of a traffic channel of a current call in a narrowband target cell;
- the processor 1202 has a function of: switching from the broadband serving cell to the narrowband target cell to continue the current call according to the information of the traffic channel acquired by the acquiring module.
- the terminal 1200 in this embodiment may further include a memory 1204, which may include a volatile memory, such as a random-access memory (RAM); the memory may also include a non-easy memory.
- Non-volatile memory such as a flash memory, a hard disk drive (HDD) or a solid-state drive (SSD); the memory 1204 may also include the above-described types of memory.
- the memory 1204 is used to store software programs and cache data, and the transceiver 1201 and the memory 1204 are communicatively coupled to the processor 1202 via a bus 1203.
- the transceiver 1201 may have two sets, one set for obtaining information of a traffic channel from a broadband cluster base station, and one set for obtaining information of a traffic channel from a narrowband cluster base station.
- the terminal 1200 of this embodiment may further perform other steps of the foregoing method embodiments, and details are not described herein again.
- the core network device 1300 of this embodiment includes:
- the allocating module 1301 is configured to receive, by the terminal, a service channel for the current call in the narrowband target cell, where the terminal participates in the current call in the broadband serving cell, where the terminal is registered in the broadband serving cell and the narrowband serving cell;
- the sending module 1302 is configured to send information about the traffic channel to the terminal, so that the terminal switches from the broadband serving cell to the narrowband target cell to continue the current call according to the information of the traffic channel.
- the allocating module 1301 includes:
- the first receiving unit is configured to send, by the terminal, a cell handover request sent by the broadband cluster base station, where the cell handover request includes the call identifier of the current call and the wireless location identification number LAI of the narrowband target cell in the cell handover request;
- An identifying unit configured to identify, according to the LAI, a narrowband core network to which the narrowband target cell belongs;
- a first sending unit configured to send a cell handover preparation request to the narrowband core network, where the cell handover preparation request includes the call identifier, so that the narrowband core network allocates a traffic channel for the current call according to the call identifier;
- a first acquiring unit configured to obtain, by using a gateway, information about the traffic channel from the narrowband core network
- the sending module 1302 includes:
- a second sending unit configured to send information of the traffic channel to the terminal
- the allocating module 1301 includes: a second receiving unit, configured to receive a cell handover request sent by the terminal, where the cell handover request includes a call identifier of the current call, and the narrowband The wireless location identification number LAI of the target cell;
- a processing unit configured to allocate a traffic channel to the narrowband target cell according to the call identifier for the current call
- the sending module 1302 includes:
- a third sending unit configured to send the information of the traffic channel to the narrowband core network to which the narrowband serving cell belongs, so that the narrowband cluster base station corresponding to the narrowband serving cell sends the service letter to the terminal Road information.
- the allocating module 1301 includes:
- a third receiving unit configured to: when the terminal determines that the current call is a group call and the group belongs to the narrowband core network, receive a call setup request sent by the terminal, where the call setup request includes a call identifier of the group call;
- a fourth sending unit configured to send the call setup request to the group of home narrowband core networks, so that the group of home narrowband core networks according to the call identity by incorporating the terminal into the group call is the current call in the narrowband target cell Allocating traffic channels;
- a fourth receiving unit configured to receive information about the traffic channel fed back by the group of the narrowband core network
- the sending module 1302 includes:
- a fifth sending unit configured to send information of the traffic channel to the terminal.
- the allocating module 1301 includes:
- a fifth receiving unit configured to: when the terminal determines that the current call is a group call and the group belongs to the broadband core network, receive a call setup request sent by the terminal, where the call setup request includes a call identifier of the group call;
- a sixth sending unit configured to send the call setup request to the group of home broadband network, so that the group of home broadband core networks according to the call identity by incorporating the terminal into the group call is the current call in the narrowband target cell Allocating a traffic channel;
- a sixth receiving unit configured to receive information about the traffic channel fed back by the group of home broadband core networks;
- the sending module 1302 includes:
- a seventh sending unit configured to send information of the traffic channel to the terminal.
- the allocation module includes:
- a seventh receiving unit configured to receive a call setup request sent by the terminal, where the call setup request includes a call identifier of the group call;
- An allocating unit configured to allocate a traffic channel to the narrowband target cell for the current call by combining the terminal into the group call according to the call identity of the group call; the sending module includes:
- an eighth sending unit configured to send information of the traffic channel to the terminal.
- the core network device 1400 of this embodiment includes:
- the transceiver 1401 is connected to the processor 1402 via the bus 1403;
- the bus 1403 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus.
- PCI peripheral component interconnect
- EISA extended industry standard architecture
- the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 14, but it does not mean that there is only one bus or one type of bus.
- the processor 1402 may be a central processing unit (CPU), a network processor (NP) or a combination of a CPU and an NP.
- CPU central processing unit
- NP network processor
- the processor 1402 may further include a hardware chip.
- the hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD) or a combination thereof.
- the PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a general array logic (GAL) or any combination.
- the processor 1402 has the following functions: the request of the receiving terminal allocates a traffic channel to the narrowband target cell for the current call, and the terminal participates in the current call in the broadband serving cell, and the terminal registers in both the broadband serving cell and the narrowband serving cell;
- the transceiver 1401 has a function of: transmitting the traffic channel information acquired by the processing module to the terminal, so that the terminal switches from the broadband serving cell to the narrowband target cell according to the information of the traffic channel to continue the current call. .
- the core network 1400 in this embodiment may further include a memory 1404, which may include a volatile memory, such as a random-access memory (RAM); the memory may also include a non-volatile memory.
- a volatile memory such as a random-access memory (RAM); the memory may also include a non-volatile memory.
- Non-volatile memory such as a flash memory, a hard disk drive (HDD) or a solid-state drive (SSD); the memory 1404 may also include the above-mentioned types.
- the memory 1404 is used to store software programs and cache data, and the transceiver 1401 and the memory 1404 are communicatively coupled to the processor 1402 via a bus 1403.
- the core network device 1400 of this embodiment may also perform other steps of the foregoing method embodiments, I won't go into details here.
- the device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as the cells may or may not be physical. Units can be located in one place or distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
- the connection relationship between the modules indicates that there is a communication connection between them, and specifically, one or more communication buses or signal lines can be realized. Those of ordinary skill in the art can understand and implement without any creative effort.
- the present invention can be implemented by means of hardware, such as analog circuits, digital circuits or dedicated circuits.
- software program implementation is a better implementation in more cases.
- the technical solution of the present invention can be implemented in the form of a software product stored in a readable storage medium, such as a computer floppy disk, a flash memory (English: flash memory), a hard disk, only Read-Only Memory (ROM), Random Access Memory (RAM), or optical disk, etc., including instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to execute The method of various embodiments of the present invention.
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Abstract
Provided in an embodiment of the invention are a cell switching method, a terminal, and a core network device. The cell switching method comprises: a terminal participating in a current call in a broadband service cell, the terminal having registered at the broadband service cell and a narrowband service cell; the terminal acquiring information of a service channel in a narrowband target cell to use the same for the current call; and the terminal switching, according to the acquired information of the service channel, from the broadband service cell to the narrowband target cell and continuing the current call. The embodiment of the invention realizes switching from a broadband cell to a narrowband cell, thereby avoiding call drop.
Description
本发明实施例涉及通信技术领域,尤其涉及一种小区切换方法,终端以及核心网设备。The embodiments of the present invention relate to the field of communications technologies, and in particular, to a cell handover method, a terminal, and a core network device.
在专业集群通信领域,警用数字集群(Police Digital Trunking,PDT)系统、陆上集群无线电(Terrestrial Trunked Radio,Tetra)系统和P25(Project25)是几种主流的系统,它们都属于窄带集群系统。PDT、Tetra和P25等窄带集群通信系统能为用户提供良好的窄带语音业务,但在数据业务方面存在传输速率低的缺点,无法满足图像和数据等日益增长的宽带业务的需要,为解决这一问题,业界普遍看好窄带系统加宽带系统的宽窄带集群融合方式,宽带系统例如长期演进(Long Term Evolution,LTE)系统,宽窄带集群融合方式例如:PDT+LTE、Tetra+LTE、P25+LTE等。In the field of professional trunking communication, the Police Digital Trunking (PDT) system, the Terrestrial Trunked Radio (Tetra) system and the P25 (Project25) are several mainstream systems, all of which belong to the narrowband cluster system. Narrowband trunking communication systems such as PDT, Tetra, and P25 can provide users with good narrowband voice services, but have the disadvantage of low transmission rate in data services, and cannot meet the needs of growing broadband services such as images and data. The problem is that the industry is generally optimistic about narrow-band systems and broadband systems for broadband and narrow-band cluster convergence. Broadband systems such as Long Term Evolution (LTE) systems, wideband and narrowband cluster convergence methods such as PDT+LTE, Tetra+LTE, P25+LTE, etc. .
在融合的初期阶段,核心网分别建设并通过网关互联,网关互联的网络架构可如图1所示,之后核心网会逐步过渡到统一融合阶段,统一融合的网络架构可如图2所示。宽窄带集群系统支持的终端类型包括窄带终端、宽带终端、以及双模终端。In the initial stage of convergence, the core networks are respectively constructed and interconnected through gateways. The network architecture of the gateway interconnection can be as shown in Figure 1. After that, the core network will gradually transition to the unified integration phase. The unified network architecture can be as shown in Figure 2. Terminal types supported by wideband and narrowband cluster systems include narrowband terminals, broadband terminals, and dual mode terminals.
现有的宽带集群和窄带集群标准均支持切换功能:对于宽带集群终端,可采用宽带标准定义的切换方案(例如:LTE切换);对于窄带集群终端,可采用窄带集群标准定义的切换方案(例如:PDT越区切换);对于双模终端,从宽带小区往宽带小区切换,可采用宽带切换方案,从窄带小区往窄带小区切换,可采用窄带切换方案,而从宽带小区往窄带小区切换,现有标准和技术规范未涉及。The existing broadband cluster and narrowband cluster standards support the switching function: for the broadband cluster terminal, the switching scheme defined by the broadband standard (for example, LTE handover) can be adopted; for the narrowband cluster terminal, the handover scheme defined by the narrowband cluster standard can be adopted (for example, : PDT handover); for dual-mode terminals, from the broadband cell to the broadband cell handover, a broadband handover scheme can be adopted, and a narrowband handover scheme can be adopted from a narrowband cell to a narrowband cell, and a narrowband handover scheme can be adopted, and the handover from the broadband cell to the narrowband cell is now There are standards and technical specifications not covered.
发明内容Summary of the invention
有鉴于此,本发明实施例提供了一种小区切换方法,终端以及核心网设备,能够实现从宽带小区往窄带小区的切换,避免掉话。In view of this, the embodiment of the present invention provides a cell handover method, where a terminal and a core network device can implement handover from a broadband cell to a narrowband cell to avoid dropped calls.
第一方面,本发明实施例提供的一种小区切换方法,包括:In a first aspect, a cell handover method provided by an embodiment of the present invention includes:
终端在宽带服务小区参与当前呼叫,该终端在该宽带服务小区及窄带服务
小区均注册;The terminal participates in the current call in the broadband serving cell, and the terminal is in the broadband serving cell and narrowband service
The community is registered;
该终端获取窄带目标小区中的当前呼叫的业务信道的信息;The terminal acquires information of a traffic channel of a current call in the narrowband target cell;
该终端根据该业务信道的信息从该宽带服务小区切换至该窄带目标小区继续该当前呼叫。The terminal switches from the broadband serving cell to the narrowband target cell to continue the current call according to the information of the traffic channel.
一种可能实现方式中,该终端获取该窄带目标小区中的当前呼叫的业务信道的信息包括:该终端请求核心网设备为该当前呼叫在该窄带目标小区分配业务信道;该终端获取该业务信道的信息。In a possible implementation, the acquiring, by the terminal, the information of the traffic channel of the current call in the narrowband target cell includes: the terminal requesting the core network device to allocate a traffic channel in the narrowband target cell for the current call; the terminal acquiring the traffic channel Information.
另一种可能实现方式中,该终端请求核心网设备为该当前呼叫在该窄带目标小区分配业务信道之前,终端在宽带服务小区参与当前呼叫之后,该方法还包括:该终端接收该窄带服务小区归属的窄带核心网发送的广播信息,该广播信息包括该窄带目标小区的业务信道的信息;该终端根据该广播信息获取业务信道列表;该终端判断该业务信道列表中是否存在该当前呼叫的业务信道的信息;若该业务信道列表中不存在该当前呼叫的业务信道的信息,则触发该终端请求核心网为该当前呼叫在该窄带目标小区分配业务信道。In another possible implementation, after the terminal requests the core network device to allocate the traffic channel to the narrowband target cell, the terminal, after the terminal participates in the current call in the broadband serving cell, the method further includes: the terminal receiving the narrowband serving cell Broadcast information sent by the home narrowband core network, the broadcast information includes information of a traffic channel of the narrowband target cell; the terminal acquires a traffic channel list according to the broadcast information; the terminal determines whether the current call service exists in the traffic channel list The information of the channel; if the information of the traffic channel of the current call does not exist in the traffic channel list, the terminal is triggered to request the core network to allocate a traffic channel to the narrowband target cell for the current call.
另一种可能实现方式中,该终端请求核心网设备为该当前呼叫在该窄带目标小区分配业务信道包括:In another possible implementation manner, the terminal requesting the core network device to allocate a traffic channel to the narrowband target cell for the current call includes:
该终端通过宽带集群基站向宽带核心网发送小区切换请求,该小区切换请求中包括该当前呼叫的呼叫标识及该窄带目标小区的无线位置识别号LAI,以使得该宽带核心网根据该窄带目标小区的LAI识别该窄带目标小区归属的窄带核心网,并获取该窄带目标小区中该当前呼叫的业务信道的信息;The terminal sends a cell handover request to the broadband core network through the broadband cluster base station, where the cell handover request includes the call identifier of the current call and the radio location identification number LAI of the narrowband target cell, so that the broadband core network is based on the narrowband target cell. The LAI identifies the narrowband core network to which the narrowband target cell belongs, and acquires information of the traffic channel of the current call in the narrowband target cell;
该终端获取该业务信道的信息包括:The information obtained by the terminal for acquiring the traffic channel includes:
该终端通过该宽带集群基站从该宽带核心网获取该当前呼叫的业务信道的信息;和/或,The terminal acquires information of a traffic channel of the current call from the broadband core network by using the broadband cluster base station; and/or,
该终端从该窄带服务小区对应的窄带集群基站获取该当前呼叫的业务信道的信息,该当前呼叫的业务信道的信息由该宽带核心网发送给该窄带集群基站。The terminal acquires information of the traffic channel of the current call from the narrowband cluster base station corresponding to the narrowband serving cell, and the information of the traffic channel of the current call is sent by the broadband core network to the narrowband cluster base station.
另一种可能实现方式中,该终端请求核心网设备为该当前呼叫在该窄带目标小区分配业务信道包括:In another possible implementation manner, the terminal requesting the core network device to allocate a traffic channel to the narrowband target cell for the current call includes:
该终端判断该当前呼叫是否为组呼且组归属宽带核心网;
The terminal determines whether the current call is a group call and the group belongs to the broadband core network;
若该当前呼叫为组呼且组归属宽带核心网,则该终端通过该窄带目标小区对应的窄带集群基站向该窄带目标小区归属的窄带核心网发送呼叫建立请求,该呼叫建立请求包括该组呼的组标识,以使得该窄带目标小区归属的窄带核心网向该组归属宽带核心网发送该呼叫建立请求,并获取该窄带目标小区中该当前呼叫的业务信道的信息;If the current call is a group call and the group belongs to the broadband core network, the terminal sends a call setup request to the narrowband core network to which the narrowband target cell belongs by using the narrowband cluster base station corresponding to the narrowband target cell, where the call setup request includes the group call The group identifier is such that the narrowband core network to which the narrowband target cell belongs sends the call setup request to the group of home broadband core networks, and acquires information of the traffic channel of the current call in the narrowband target cell;
该终端获取该业务信道的信息包括:The information obtained by the terminal for acquiring the traffic channel includes:
该终端从该窄带目标小区对应的窄带集群基站获取该当前呼叫的业务信道的信息。The terminal acquires information about the traffic channel of the current call from the narrowband cluster base station corresponding to the narrowband target cell.
另一种可能实现方式中,该终端请求核心网设备为该当前呼叫在该窄带目标小区分配业务信道包括:In another possible implementation manner, the terminal requesting the core network device to allocate a traffic channel to the narrowband target cell for the current call includes:
该终端判断该当前呼叫是否为组呼且组归属窄带核心网;The terminal determines whether the current call is a group call and the group belongs to the narrowband core network;
若该当前呼叫为组呼且组归属窄带核心网,则该终端通过该窄带目标小区对应的窄带集群基站向该窄带目标小区归属的窄带核心网发送呼叫建立请求,该呼叫建立请求中包括该组呼的组标识,以使得该窄带目标小区归属的窄带核心网向该组归属窄带核心网发送该呼叫建立请求,并获取该窄带目标小区中该当前呼叫的业务信道的信息;If the current call is a group call and the group belongs to the narrowband core network, the terminal sends a call setup request to the narrowband core network to which the narrowband target cell belongs by using the narrowband cluster base station corresponding to the narrowband target cell, where the call setup request includes the group And the group identity of the call, so that the narrowband core network to which the narrowband target cell belongs sends the call setup request to the group of the home narrowband core network, and acquires information about the service channel of the current call in the narrowband target cell;
该终端获取该业务信道的信息包括:The information obtained by the terminal for acquiring the traffic channel includes:
该终端从该窄带目标小区对应的窄带集群基站获取该当前呼叫的业务信道的信息。The terminal acquires information about the traffic channel of the current call from the narrowband cluster base station corresponding to the narrowband target cell.
另一种可能实现方式中,该终端请求核心网设备为该当前呼叫在该窄带目标小区分配业务信道包括:In another possible implementation manner, the terminal requesting the core network device to allocate a traffic channel to the narrowband target cell for the current call includes:
该终端通过宽带集群基站向统一融合核心网发送小区切换请求,该小区切换请求中包括该当前呼叫的呼叫标识及该窄带目标小区的无线位置识别号LAI,以使得该统一融合核心网根据该窄带目标小区的LAI和该呼叫标识为该当前呼叫在该窄带目标小区分配业务信道;The terminal sends a cell handover request to the unified converged core network by using the broadband cluster base station, where the cell handover request includes the call identifier of the current call and the radio location identification number LAI of the narrowband target cell, so that the unified converged core network according to the narrowband The LAI of the target cell and the call identifier are that the current call allocates a traffic channel in the narrowband target cell;
该终端获取该业务信道的信息包括:The information obtained by the terminal for acquiring the traffic channel includes:
该终端从该宽带集群基站获取该业务信道的信息,该业务信道的信息由该统一融合核心网发送给该宽带集群基站;The terminal acquires information of the traffic channel from the broadband cluster base station, and the information of the traffic channel is sent by the unified converged core network to the broadband cluster base station;
和/或,
and / or,
该终端从该窄带服务小区对应的窄带集群基站获取该业务信道的信息,该业务信道的信息由该统一融合核心网发送给该窄带集群基站。The terminal acquires information of the traffic channel from the narrowband cluster base station corresponding to the narrowband serving cell, and the information of the traffic channel is sent by the unified converged core network to the narrowband cluster base station.
另一种可能实现方式中,该终端请求核心网设备为该当前呼叫在该窄带目标小区分配业务信道包括:In another possible implementation manner, the terminal requesting the core network device to allocate a traffic channel to the narrowband target cell for the current call includes:
该终端判断该当前呼叫是否为组呼;The terminal determines whether the current call is a group call;
若该当前呼叫为组呼,则该终端通过该窄带目标小区对应的窄带集群基站向该统一融合核心网发送呼叫建立请求,该呼叫建立请求包括该组呼的组标识,以使得该统一融合核心网根据该组标识通过将该终端并入该组呼为该当前呼叫在该窄带目标小区中分配业务信道;If the current call is a group call, the terminal sends a call setup request to the unified convergence core network by using the narrowband cluster base station corresponding to the narrowband target cell, where the call setup request includes the group identifier of the group call, so that the unified fusion core And the network allocates a traffic channel in the narrowband target cell for the current call by combining the terminal into the group call according to the group identifier;
该终端获取该业务信道的信息包括:The information obtained by the terminal for acquiring the traffic channel includes:
该终端从该窄带目标小区对应的窄带集群基站获取该当前呼叫的业务信道的信息,该业务信道信息由该统一融合核心网发送给该窄带集群基站。The terminal acquires information about the traffic channel of the current call from the narrowband cluster base station corresponding to the narrowband target cell, and the traffic channel information is sent by the unified converged core network to the narrowband cluster base station.
另一种可能实现方式中,该终端获取该窄带目标小区中的当前呼叫的业务信道的信息包括:In another possible implementation, the information about the service channel of the current call in the narrowband target cell is obtained by the terminal, including:
该终端接收该窄带服务小区归属的窄带核心网发送的广播信息,该广播信息包括该窄带目标小区的业务信道的信息;The terminal receives broadcast information sent by the narrowband core network to which the narrowband serving cell belongs, and the broadcast information includes information of a traffic channel of the narrowband target cell;
该终端根据该广播信息获取业务信道列表;The terminal acquires a traffic channel list according to the broadcast information;
该终端判断该业务信道列表中是否存在该当前呼叫的业务信道的信息;Determining, by the terminal, whether information about a traffic channel of the current call exists in the traffic channel list;
若该业务信道列表中存在该当前呼叫的业务信道的信息,则该终端从该窄带服务小区对应的窄带集群基站获取该窄带目标小区中该当前呼叫的业务信道的信息。If the information of the traffic channel of the current call exists in the traffic channel list, the terminal acquires information about the traffic channel of the current call in the narrowband target cell from the narrowband cluster base station corresponding to the narrowband serving cell.
第二方面,本发明实施例提供的一种终端,包括:In a second aspect, a terminal provided by the embodiment of the present invention includes:
呼叫模块,用于在宽带服务小区参与当前呼叫,该终端在该宽带服务小区及窄带服务小区均注册;a calling module, configured to participate in a current call in a broadband serving cell, where the terminal is registered in the broadband serving cell and the narrowband serving cell;
获取模块,用于获取窄带目标小区中的当前呼叫的业务信道的信息;An acquiring module, configured to acquire information about a service channel of a current call in a narrowband target cell;
处理模块,用于根据该获取模块获取的该业务信道的信息从该宽带服务小区切换至该窄带目标小区继续该当前呼叫。And a processing module, configured to switch from the broadband serving cell to the narrowband target cell to continue the current call according to the information of the traffic channel acquired by the acquiring module.
一种可能实现方式中,该获取模块包括:In a possible implementation manner, the obtaining module includes:
请求单元,用于请求核心网设备为该当前呼叫在该窄带目标小区分配业务
信道;a requesting unit, configured to request the core network device to allocate a service to the narrowband target cell for the current call
channel;
第一获取单元,用于获取该业务信道的信息。The first acquiring unit is configured to acquire information about the traffic channel.
另一种可能实现方式中,该获取模块还包括:In another possible implementation manner, the obtaining module further includes:
第一接收单元,用于接收该窄带服务小区归属的窄带核心网发送的广播信息,该广播信息包括该窄带目标小区的业务信道的信息;a first receiving unit, configured to receive broadcast information sent by a narrowband core network to which the narrowband serving cell belongs, where the broadcast information includes information of a traffic channel of the narrowband target cell;
第二获取单元,用于根据该接收单元接收到的该广播信息获取业务信道列表;a second acquiring unit, configured to acquire a traffic channel list according to the broadcast information received by the receiving unit;
第一判断单元,用于判断该业务信道列表中是否存在该当前呼叫的业务信道的信息;a first determining unit, configured to determine whether the information of the service channel of the current call exists in the service channel list;
触发单元,用于若该业务信道列表中不存在该当前呼叫的业务信道的信息,则触发请求核心网为该当前呼叫在该窄带目标小区分配业务信道。The triggering unit is configured to: if the information of the traffic channel of the current call does not exist in the traffic channel list, trigger the requesting core network to allocate a traffic channel to the narrowband target cell for the current call.
另一种可能实现方式中,该请求单元包括:In another possible implementation manner, the request unit includes:
第一处理子单元,用于通过宽带集群基站向宽带核心网发送小区切换请求,该小区切换请求中包括该当前呼叫的呼叫标识及该窄带目标小区的无线位置识别号LAI,以使得该宽带核心网可以根据该窄带目标小区的LAI识别该窄带目标小区归属的窄带核心网,并获取该窄带目标小区中该当前呼叫的业务信道的信息;a first processing subunit, configured to send a cell handover request to the broadband core network by using the broadband cluster base station, where the cell handover request includes a call identifier of the current call and a radio location identification number LAI of the narrowband target cell, so that the broadband core The network may identify the narrowband core network to which the narrowband target cell belongs according to the LAI of the narrowband target cell, and obtain information about the current channel of the current call in the narrowband target cell;
该第一获取单元包括:The first obtaining unit includes:
第一获取子单元,用于通过该宽带集群基站从该宽带核心网获取该当前呼叫的业务信道的信息;a first acquiring subunit, configured to acquire, by the broadband cluster base station, information of a traffic channel of the current call from the broadband core network;
和/或,and / or,
从该窄带服务小区对应的窄带集群基站获取该当前呼叫的业务信道的信息,该当前呼叫的业务信道的信息由该宽带核心发送给该窄带集群基站。Obtaining information of the traffic channel of the current call from the narrowband cluster base station corresponding to the narrowband serving cell, and the information of the traffic channel of the current call is sent by the broadband core to the narrowband cluster base station.
另一种可能实现方式中,该请求单元包括:In another possible implementation manner, the request unit includes:
第二处理子单元,用于判断该当前呼叫是否为组呼且组归属宽带核心网;a second processing sub-unit, configured to determine whether the current call is a group call and the group belongs to a broadband core network;
第一发送子单元,用于若该当前呼叫为组呼且组归属宽带核心网,则通过该窄带目标小区对应的窄带集群基站向该窄带目标小区归属的窄带核心网发送呼叫建立请求,该呼叫建立请求中包括该组呼的组标识,以使得该窄带目标小区归属的窄带核心网向该组归属宽带核心网发送该呼叫建立请求,并获取该
窄带目标小区中该当前呼叫的业务信道的信息;a first sending subunit, configured to send a call setup request to the narrowband core network to which the narrowband target cell belongs by using the narrowband cluster base station corresponding to the narrowband target cell if the current call is a group call and the group belongs to the broadband core network, the call Establishing, in the request, the group identifier of the group call, so that the narrowband core network to which the narrowband target cell belongs sends the call setup request to the group of home broadband core networks, and acquiring the
Information of the traffic channel of the current call in the narrowband target cell;
该第一获取单元包括:The first obtaining unit includes:
第二获取子单元,用于从该窄带目标小区对应的窄带集群基站获取该当前呼叫的业务信道的信息。And a second acquiring subunit, configured to acquire information about a traffic channel of the current call from the narrowband cluster base station corresponding to the narrowband target cell.
另一种可能实现方式中,该请求单元包括:In another possible implementation manner, the request unit includes:
第三处理子单元,用于判断该当前呼叫是否为组呼且组归属窄带核心网;a third processing sub-unit, configured to determine whether the current call is a group call and the group belongs to a narrowband core network;
第二发送子单元,用于若该当前呼叫为组呼且组归属窄带核心网,则通过该窄带目标小区对应的窄带集群基站向该窄带目标小区归属的窄带核心网发送呼叫建立请求,该呼叫建立请求中包括该组呼的组标识,以使得该窄带目标小区归属的窄带核心网根据该组标识将该终端并入该组呼,并获取该窄带目标小区中该当前呼叫的业务信道的信息;a second sending subunit, configured to send a call setup request to the narrowband core network to which the narrowband target cell belongs by using the narrowband cluster base station corresponding to the narrowband target cell if the current call is a group call and the group belongs to the narrowband core network, the call The group identifier of the group call is included in the establishment request, so that the narrowband core network to which the narrowband target cell belongs is merged into the group call according to the group identifier, and information about the service channel of the current call in the narrowband target cell is obtained. ;
该第一获取单元包括:The first obtaining unit includes:
第三获取子单元,用于从该窄带目标小区对应的窄带集群基站获取该当前呼叫的业务信道的信息。And a third acquiring subunit, configured to acquire information about a traffic channel of the current call from the narrowband cluster base station corresponding to the narrowband target cell.
另一种可能实现方式中,该请求单元包括:In another possible implementation manner, the request unit includes:
第四处理子单元,用于通过宽带集群基站向该统一融合核心网发送小区切换请求,该小区切换请求中包括该当前呼叫的呼叫标识及该窄带目标小区的无线位置识别号LAI,以使得该统一融合核心网根据该窄带目标小区的LAI和该呼叫标识为该当前呼叫在该窄带目标小区分配业务信道;a fourth processing subunit, configured to send a cell handover request to the unified converged core network by using the broadband cluster base station, where the cell handover request includes a call identifier of the current call and a radio location identification number LAI of the narrowband target cell, so that the The unified converged core network allocates a traffic channel in the narrowband target cell according to the LAI of the narrowband target cell and the call identifier for the current call;
该第一获取单元包括:The first obtaining unit includes:
第四获取子单元,用于从该宽带集群基站获取该业务信道的信息,该业务信道的信息由该统一融合核心网发送给该宽带集群基站;a fourth acquiring subunit, configured to acquire information of the traffic channel from the broadband cluster base station, where information of the traffic channel is sent by the unified converged core network to the broadband cluster base station;
和/或,and / or,
从窄带服务小区对应的窄带集群基站获取该业务信道的信息,该业务信道的信息由该统一融合核心网发送给该窄带集群基站。The information of the traffic channel is obtained from the narrowband cluster base station corresponding to the narrowband serving cell, and the information of the traffic channel is sent by the unified convergence core network to the narrowband cluster base station.
另一种可能实现方式中,该请求单元包括:In another possible implementation manner, the request unit includes:
第五处理子单元,用于判断该当前呼叫是否为组呼;a fifth processing subunit, configured to determine whether the current call is a group call;
第三发送子单元,用于若该当前呼叫为组呼,则通过该窄带目标小区对应的窄带集群基站向该统一融合核心网发送呼叫建立请求,该呼叫建立请求包括
该组呼的组标识,以使得该统一融合核心网根据该组标识通过将该终端并入该组呼为该当前呼叫在该窄带目标小区中分配业务信道;a third sending subunit, configured to send, by the narrowband cluster base station corresponding to the narrowband target cell, a call setup request to the unified converged core network, if the current call is a group call, where the call setup request includes
The group identity of the group call, such that the unified convergence core network allocates a traffic channel in the narrowband target cell for the current call by incorporating the terminal into the group call according to the group identity;
该第一获取单元包括:The first obtaining unit includes:
第五获取子单元,用于从该窄带目标小区对应的窄带集群基站获取该当前呼叫的业务信道的信息,该当前呼叫的业务信道的信息由该统一融合核心网发送给该窄带集群基站。And a fifth obtaining sub-unit, configured to acquire information of a traffic channel of the current call from the narrow-band cluster base station corresponding to the narrow-band target cell, where information of the traffic channel of the current call is sent by the unified converged core network to the narrow-band cluster base station.
另一种可能实现方式中,该获取模块包括:In another possible implementation manner, the obtaining module includes:
第二接收单元,用于接收该窄带服务小区发送的广播信息,该广播信息包括该窄带目标小区的业务信道信息;a second receiving unit, configured to receive broadcast information sent by the narrowband serving cell, where the broadcast information includes service channel information of the narrowband target cell;
第三获取单元,用于根据该接收单元接收的该广播信息生成业务信道列表;a third acquiring unit, configured to generate a traffic channel list according to the broadcast information received by the receiving unit;
第二判断单元,用于判断该生成单元生成的该业务信道列表中是否存在该当前呼叫的业务信道的信息;a second determining unit, configured to determine whether the information of the service channel of the current call exists in the service channel list generated by the generating unit;
处理单元,用于若该业务信道列表中存在该当前呼叫的业务信道的信息,则从该窄带服务小区对应的窄带集群基站获取该窄带目标小区中该当前呼叫的业务信道的信息。The processing unit is configured to: if the information of the traffic channel of the current call exists in the traffic channel list, obtain information about the traffic channel of the current call in the narrowband target cell from the narrowband cluster base station corresponding to the narrowband serving cell.
第三方面,本发明实施例提供一种小区切换方法,包括:In a third aspect, an embodiment of the present invention provides a cell handover method, including:
核心网设备接收终端的请求为当前呼叫在窄带目标小区分配业务信道,该终端在宽带服务小区参与该当前呼叫,该终端在该宽带服务小区及窄带服务小区均注册;The request of the core network device receiving terminal allocates a traffic channel to the narrowband target cell for the current call, and the terminal participates in the current call in the broadband serving cell, and the terminal registers in both the broadband serving cell and the narrowband serving cell;
该核心网设备将该业务信道的信息发送给该终端,以使得该终端根据该业务信道的信息从该宽带服务小区切换至该窄带目标小区继续该当前呼叫。The core network device sends the information of the traffic channel to the terminal, so that the terminal switches from the broadband serving cell to the narrowband target cell to continue the current call according to the information of the traffic channel.
一种可能实现方式中,核心网设备为该宽带服务小区归属的宽带核心网时,核心网设备接收终端的请求为当前呼叫在窄带目标小区分配业务信道包括:In a possible implementation manner, when the core network device is the broadband core network to which the broadband serving cell belongs, the request of the core network device to receive the terminal for the current call to allocate the service channel in the narrowband target cell includes:
该宽带核心网接收该终端通过宽带集群基站发送的小区切换请求,该小区切换请求包括该当前呼叫的呼叫标识和窄带目标小区的无线位置识别号LAI;The broadband core network receives a cell handover request sent by the terminal through the broadband cluster base station, where the cell handover request includes the call identifier of the current call and the wireless location identification number LAI of the narrowband target cell;
该宽带核心网根据该LAI识别该窄带目标小区归属的窄带核心网;The broadband core network identifies the narrowband core network to which the narrowband target cell belongs according to the LAI;
该宽带核心网向该窄带核心网发送小区切换准备请求,该小区切换准备请
求包含该呼叫标识,以使得该窄带核心网根据该呼叫标识为该当前呼叫分配业务信道;The broadband core network sends a cell handover preparation request to the narrowband core network, and the cell handover preparation is requested.
And including the call identifier, so that the narrowband core network allocates a traffic channel for the current call according to the call identifier;
该宽带核心网通过网关从该窄带核心网获取该业务信道的信息;The broadband core network obtains information of the traffic channel from the narrowband core network through a gateway;
该核心网设备将该业务信道的信息发送给该终端包括:The sending, by the core network device, the information of the traffic channel to the terminal includes:
该宽带核心网将该业务信道的信息发送给该终端;The broadband core network sends the information of the traffic channel to the terminal;
和/或,and / or,
该宽带核心网将该业务信道的信息发送给该窄带服务小区归属的窄带核心网,以使得该窄带服务小区对应的窄带集群基站向该终端发送该业务信道的信息。The broadband core network sends the information of the traffic channel to the narrowband core network to which the narrowband serving cell belongs, so that the narrowband cluster base station corresponding to the narrowband serving cell sends the information of the traffic channel to the terminal.
另一种可能实现方式中,核心网设备为统一融合核心网时,核心网设备接收终端的请求为当前呼叫在窄带目标小区分配业务信道包括:In another possible implementation manner, when the core network device is a unified converged core network, the request of the core network device receiving the terminal for the current call to allocate the service channel in the narrowband target cell includes:
统一融合核心网接收该终端发送的小区切换请求,该小区切换请求包括该当前呼叫的呼叫标识和窄带目标小区的无线位置识别号LAI;The unified converged core network receives the cell handover request sent by the terminal, where the cell handover request includes the call identifier of the current call and the radio location identification number LAI of the narrowband target cell;
该统一融合核心网根据该呼叫标识为该当前呼叫在该窄带目标小区分配业务信道;The unified converged core network allocates a traffic channel to the narrowband target cell according to the call identifier for the current call;
该核心网设备将该业务信道信息发送给该终端包括:The sending, by the core network device, the traffic channel information to the terminal includes:
该统一融合核心网将该业务信道的信息发送给该窄带服务小区归属的窄带核心网,以使得该窄带服务小区对应的窄带集群基站向该终端发送该业务信道的信息。The unified converged core network sends the information of the traffic channel to the narrowband core network to which the narrowband serving cell belongs, so that the narrowband cluster base station corresponding to the narrowband serving cell sends the information of the traffic channel to the terminal.
另一种可能实现方式中,核心网设备为该窄带目标小区归属的窄带核心网时,核心网设备接收终端的请求为当前呼叫在窄带目标小区分配业务信道包括:In another possible implementation manner, when the core network device is the narrowband core network to which the narrowband target cell belongs, the request of the core network device to receive the terminal for the current call to allocate the service channel in the narrowband target cell includes:
当该终端判断该当前呼叫为组呼且组归属窄带核心网时,该窄带目标小区归属的窄带核心网接收该终端发送的呼叫建立请求,该呼叫建立请求包括该组呼的呼叫标识;When the terminal determines that the current call is a group call and the group belongs to the narrowband core network, the narrowband core network to which the narrowband target cell belongs receives a call setup request sent by the terminal, where the call setup request includes the call identifier of the group call;
该窄带目标小区归属的窄带核心网向该组归属窄带核心网发送该呼叫建立请求,以使得该组归属窄带核心网根据该呼叫标识通过将该终端并入该组呼为该当前呼叫在该窄带目标小区分配业务信道;The narrowband core network to which the narrowband target cell belongs sends the call setup request to the group of home narrowband core networks, so that the group of home narrowband core networks according to the call identity by incorporating the terminal into the group call is the current call in the narrowband The target cell allocates a traffic channel;
该窄带目标小区归属的窄带核心网接收该组归属窄带核心网反馈的该业
务信道的信息;The narrowband core network to which the narrowband target cell belongs receives the industry feedback of the group of narrowband core networks
Information of the traffic channel;
该核心网设备将该业务信道信息发送给该终端包括:The sending, by the core network device, the traffic channel information to the terminal includes:
该窄带目标小区归属的窄带核心网将该业务信道的信息发送给该终端。The narrowband core network to which the narrowband target cell belongs transmits the information of the traffic channel to the terminal.
另一种可能实现方式中,核心网设备为该窄带目标小区归属的窄带核心网时,核心网设备接收终端的请求为当前呼叫在窄带目标小区分配业务信道包括:In another possible implementation manner, when the core network device is the narrowband core network to which the narrowband target cell belongs, the request of the core network device to receive the terminal for the current call to allocate the service channel in the narrowband target cell includes:
当该终端判断该当前呼叫为组呼且组归属宽带核心网时,该窄带目标小区归属的窄带核心网接收该终端发送的呼叫建立请求,该呼叫建立请求包括该组呼的呼叫标识;When the terminal determines that the current call is a group call and the group belongs to the broadband core network, the narrowband core network to which the narrowband target cell belongs receives a call setup request sent by the terminal, where the call setup request includes the call identifier of the group call;
该窄带目标小区归属的窄带核心网向该组归属宽带核心网发送该呼叫建立请求,以使得该组归属宽带核心网根据该呼叫标识通过将该终端并入该组呼为该当前呼叫在该窄带目标小区分配业务信道;The narrowband core network to which the narrowband target cell belongs sends the call setup request to the group of home broadband core networks, so that the group of home broadband core networks according to the call identity by incorporating the terminal into the group call is the current call in the narrowband The target cell allocates a traffic channel;
该窄带目标小区归属的窄带核心网接收该组归属宽带核心网反馈的该业务信道的信息;The narrowband core network to which the narrowband target cell belongs receives information of the traffic channel fed back by the group of home broadband core networks;
该核心网设备将该业务信道信息发送给该终端包括:The sending, by the core network device, the traffic channel information to the terminal includes:
该窄带目标小区归属的窄带核心网将该业务信道的信息发送给该终端。The narrowband core network to which the narrowband target cell belongs transmits the information of the traffic channel to the terminal.
另一种可能实现方式中,核心网设备为该统一融合核心网时,核心网设备接收终端的请求为当前呼叫在窄带目标小区分配业务信道包括:In another possible implementation manner, when the core network device is the unified converged core network, the request of the core network device receiving the terminal for the current call to allocate the service channel in the narrowband target cell includes:
当该终端判断该当前呼叫为组呼时,该统一融合核心网接收该终端发送的呼叫建立请求,该呼叫建立请求包括该组呼的呼叫标识;When the terminal determines that the current call is a group call, the unified convergence core network receives a call setup request sent by the terminal, where the call setup request includes a call identifier of the group call;
该统一融合核心网根据该组呼的呼叫标识通过将该终端并入该组呼为该当前呼叫在该窄带目标小区分配业务信道;The unified converged core network allocates a traffic channel in the narrowband target cell for the current call according to the call identity of the group call by incorporating the terminal into the group call;
该核心网设备将该业务信道信息发送给该终端包括:The sending, by the core network device, the traffic channel information to the terminal includes:
该统一融合核心网将该业务信道的信息发送给该终端。The unified converged core network sends the information of the traffic channel to the terminal.
第四方面,本发明实施例中提供一种核心网设备,包括:In a fourth aspect, a core network device is provided in the embodiment of the present invention, including:
分配模块,用于接收终端的请求为当前呼叫在窄带目标小区分配业务信道,该终端在宽带服务小区参与该当前呼叫,该终端在该宽带服务小区及窄带服务小区均注册;An allocation module, configured to receive, by the terminal, a service channel for the current call in the narrowband target cell, where the terminal participates in the current call in the broadband serving cell, where the terminal is registered in the broadband serving cell and the narrowband serving cell;
发送模块,用于将该业务信道的信息发送给该终端,以使得该终端根据该
业务信道的信息从该宽带服务小区切换至该窄带目标小区继续该当前呼叫。a sending module, configured to send information of the traffic channel to the terminal, so that the terminal according to the
The information of the traffic channel is handed over from the broadband serving cell to the narrowband target cell to continue the current call.
一种可能实现方式中,核心网设备为该宽带服务小区归属的宽带核心网时,该分配模块包括:In a possible implementation manner, when the core network device is a broadband core network to which the broadband serving cell belongs, the allocation module includes:
第一接收单元,用于该终端通过宽带集群基站发送的小区切换请求,该小区切换请求包括该小区切换请求中包括该当前呼叫的呼叫标识及该窄带目标小区的无线位置识别号LAI;The first receiving unit is configured to send, by the terminal, a cell handover request sent by the broadband cluster base station, where the cell handover request includes the call identifier of the current call and the wireless location identification number LAI of the narrowband target cell in the cell handover request;
识别单元,用于根据该LAI识别该窄带目标小区归属的窄带核心网;An identifying unit, configured to identify, according to the LAI, a narrowband core network to which the narrowband target cell belongs;
第一发送单元,用于向该窄带核心网发送小区切换准备请求,该小区切换准备请求包含该呼叫标识,以使得该窄带核心网根据该呼叫标识为该当前呼叫分配业务信道;a first sending unit, configured to send a cell handover preparation request to the narrowband core network, where the cell handover preparation request includes the call identifier, so that the narrowband core network allocates a traffic channel for the current call according to the call identifier;
第一获取单元,用于通过网关从该窄带核心网获取该业务信道的信息;a first acquiring unit, configured to obtain, by using a gateway, information about the traffic channel from the narrowband core network;
该发送模块包括:The sending module includes:
第二发送单元,用于将该业务信道的信息发送给该终端;a second sending unit, configured to send information of the traffic channel to the terminal;
和/或,and / or,
将该业务信道的信息发送给该窄带服务小区归属的窄带核心网,以使得该窄带服务小区对应的窄带集群基站向该终端发送该业务信道的信息。Transmitting the information of the traffic channel to the narrowband core network to which the narrowband serving cell belongs, so that the narrowband cluster base station corresponding to the narrowband serving cell sends the information of the traffic channel to the terminal.
另一种可能实现方式中,核心网设备为统一融合核心网时,该分配模块包括:第二接收单元,用于接收该终端发送的小区切换请求,该小区切换请求包括该当前呼叫的呼叫标识和该窄带目标小区的无线位置识别号LAI;In another possible implementation, when the core network device is a unified core network, the allocation module includes: a second receiving unit, configured to receive a cell handover request sent by the terminal, where the cell handover request includes a call identifier of the current call. And a wireless location identification number LAI of the narrowband target cell;
处理单元,用于根据该呼叫标识为该当前呼叫在该窄带目标小区分配业务信道;a processing unit, configured to allocate a traffic channel to the narrowband target cell according to the call identifier for the current call;
该发送模块包括:The sending module includes:
第三发送单元,用于将该业务信道的信息发送给该窄带服务小区归属的窄带核心网,以使得该窄带服务小区对应的窄带集群基站向该终端发送该业务信道的信息。The third sending unit is configured to send the information of the traffic channel to the narrowband core network to which the narrowband serving cell belongs, so that the narrowband cluster base station corresponding to the narrowband serving cell sends the information of the traffic channel to the terminal.
另一种可能实现方式中,核心网设备为该窄带目标小区归属的窄带核心网时,该分配模块包括:In another possible implementation manner, when the core network device is a narrowband core network to which the narrowband target cell belongs, the allocation module includes:
第三接收单元,用于当该终端判断该当前呼叫为组呼且组归属窄带核心网时,接收该终端发送的呼叫建立请求,该呼叫建立请求包括该组呼的呼叫标识;
a third receiving unit, configured to: when the terminal determines that the current call is a group call and the group belongs to the narrowband core network, receive a call setup request sent by the terminal, where the call setup request includes a call identifier of the group call;
第四发送单元,用于向该组归属窄带核心网发送该呼叫建立请求,以使得该组归属窄带核心网根据该呼叫标识通过将该终端并入该组呼为该当前呼叫在该窄带目标小区分配业务信道;a fourth sending unit, configured to send the call setup request to the group of home narrowband core networks, so that the group of home narrowband core networks according to the call identity by incorporating the terminal into the group call is the current call in the narrowband target cell Allocating traffic channels;
第四接收单元,用于接收该组归属窄带核心网反馈的该业务信道的信息;a fourth receiving unit, configured to receive information about the traffic channel fed back by the group of the narrowband core network;
该发送模块包括:The sending module includes:
第五发送单元,用于将该业务信道的信息发送给该终端。And a fifth sending unit, configured to send information of the traffic channel to the terminal.
另一种可能实现方式中,核心网设备为该窄带目标小区归属的窄带核心网时,该分配模块包括:In another possible implementation manner, when the core network device is a narrowband core network to which the narrowband target cell belongs, the allocation module includes:
第五接收单元,用于当该终端判断该当前呼叫为组呼且组归属宽带核心网时,接收该终端发送的呼叫建立请求,该呼叫建立请求包括该组呼的呼叫标识;a fifth receiving unit, configured to: when the terminal determines that the current call is a group call and the group belongs to the broadband core network, receive a call setup request sent by the terminal, where the call setup request includes a call identifier of the group call;
第六发送单元,用于向该组归属宽带核心网发送该呼叫建立请求,以使得该组归属宽带核心网根据该呼叫标识通过将该终端并入该组呼为该当前呼叫在该窄带目标小区分配业务信道;第六接收单元,用于接收该组归属宽带核心网反馈的该业务信道的信息;a sixth sending unit, configured to send the call setup request to the group of home broadband network, so that the group of home broadband core networks according to the call identity by incorporating the terminal into the group call is the current call in the narrowband target cell Allocating a traffic channel; a sixth receiving unit, configured to receive information about the traffic channel fed back by the group of home broadband core networks;
该发送模块包括:The sending module includes:
第七发送单元,用于将该业务信道的信息发送给该终端。And a seventh sending unit, configured to send information of the traffic channel to the terminal.
另一种可能实现方式中,核心网设备为该统一融合核心网时,该分配模块包括:In another possible implementation manner, when the core network device is the unified and integrated core network, the allocation module includes:
第七接收单元,用于接收该终端发送的呼叫建立请求,该呼叫建立请求包括该组呼的呼叫标识;a seventh receiving unit, configured to receive a call setup request sent by the terminal, where the call setup request includes a call identifier of the group call;
分配单元,用于根据该组呼的呼叫标识通过将该终端并入该组呼为该当前呼叫在该窄带目标小区分配业务信道;该发送模块包括:An allocating unit, configured to allocate a traffic channel to the narrowband target cell for the current call by combining the terminal into the group call according to the call identity of the group call; the sending module includes:
第八发送单元,用于将该业务信道的信息发送给该终端。And an eighth sending unit, configured to send information of the traffic channel to the terminal.
第五方面,本发明实施例提供一种终端,包括:In a fifth aspect, an embodiment of the present invention provides a terminal, including:
收发器,处理器和总线;Transceiver, processor and bus;
该收发器与该处理器通过该总线相连;The transceiver is coupled to the processor via the bus;
该处理器,具有如下功能:在宽带服务小区参与当前呼叫,该终端在该宽带服务小区及窄带服务小区均注册;The processor has the following functions: participating in a current call in a broadband serving cell, and the terminal is registered in both the broadband serving cell and the narrowband serving cell;
该收发器,具有如下功能:获取窄带目标小区中的当前呼叫的业务信道的
信息;The transceiver has the function of acquiring a traffic channel of a current call in a narrowband target cell
information;
该处理器,具有如下功能:根据该获取模块获取的该业务信道的信息从该宽带服务小区切换至该窄带目标小区继续该当前呼叫。The processor has a function of switching from the broadband serving cell to the narrowband target cell to continue the current call according to the information of the traffic channel acquired by the acquiring module.
第六方面,本发明实施例中提供一种核心网设备,包括:In a sixth aspect, a core network device is provided in the embodiment of the present invention, including:
收发器,处理器和总线;Transceiver, processor and bus;
该收发器与该处理器通过该总线相连;The transceiver is coupled to the processor via the bus;
该处理器,具有如下功能:接收终端的请求为当前呼叫在窄带目标小区分配业务信道,该终端在宽带服务小区参与该当前呼叫,该终端在该宽带服务小区及窄带服务小区均注册;The processor has the following functions: the request of the receiving terminal allocates a traffic channel to the narrowband target cell for the current call, and the terminal participates in the current call in the broadband serving cell, and the terminal registers in both the broadband serving cell and the narrowband serving cell;
该收发器,具有如下功能:将该处理模块获取到的该业务信道信息发送给该终端,以使得该终端根据该业务信道的信息从该宽带服务小区切换至该窄带目标小区继续该当前呼叫。The transceiver has the function of transmitting the traffic channel information acquired by the processing module to the terminal, so that the terminal switches from the broadband serving cell to the narrowband target cell to continue the current call according to the information of the traffic channel.
从以上技术方案可以看出,本发明实施例具有以下优点:It can be seen from the above technical solutions that the embodiments of the present invention have the following advantages:
本发明实施例中,在宽带服务小区参与当前呼叫的终端可以获取窄带目标小区中存在的当前呼叫的业务信道的信息,根据获取的业务信道的信息即可从宽带服务小区切换至窄带目标小区继续当前呼叫,通过上述方案,使得双模终端在移动到宽带无线信号覆盖不好而窄带无线信号覆盖良好的区域时,可以从宽带服务小区切换到窄带目标小区,继续保持呼叫,避免掉话。In the embodiment of the present invention, the terminal that participates in the current call in the broadband serving cell can obtain the information of the current channel of the current call existing in the narrowband target cell, and can switch from the broadband serving cell to the narrowband target cell according to the obtained information of the traffic channel. The current call, through the above scheme, enables the dual-mode terminal to switch from the broadband serving cell to the narrow-band target cell when moving to a region where the broadband wireless signal coverage is not good and the narrow-band wireless signal covers well, and continues to hold the call to avoid dropped calls.
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。In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings to be used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.
图1为网关互联的网络架构的一个结构示意图;FIG. 1 is a schematic structural diagram of a network architecture of a gateway interconnection;
图2为统一融合的网络架构的一个结构示意图;2 is a schematic structural diagram of a unified and converged network architecture;
图3为本发明实施例小区切换方法一个流程示意图;3 is a schematic flowchart of a cell handover method according to an embodiment of the present invention;
图4为本发明实施例小区切换方法一个信令交互示意图;4 is a schematic diagram of signaling interaction of a cell handover method according to an embodiment of the present invention;
图5为本发明实施例小区切换方法另一信令交互示意图;FIG. 5 is a schematic diagram of another signaling interaction of a cell handover method according to an embodiment of the present invention;
图6为本发明实施例小区切换方法另一信令交互示意图;
FIG. 6 is a schematic diagram of another signaling interaction of a cell handover method according to an embodiment of the present invention;
图7为本发明实施例小区切换方法另一信令交互示意图;FIG. 7 is a schematic diagram of another signaling interaction of a cell handover method according to an embodiment of the present invention;
图8为本发明实施例小区切换方法另一信令交互示意图;FIG. 8 is a schematic diagram of another signaling interaction of a cell handover method according to an embodiment of the present invention;
图9为本发明实施例小区切换方法另一信令交互示意图;FIG. 9 is a schematic diagram of another signaling interaction of a cell handover method according to an embodiment of the present invention;
图10为本发明实施例小区切换方法另一信令交互示意图;FIG. 10 is a schematic diagram of another signaling interaction of a cell handover method according to an embodiment of the present invention;
图11为本发明实施例终端一个结构示意图;11 is a schematic structural diagram of a terminal according to an embodiment of the present invention;
图12为本发明实施例终端另一结构示意图;12 is another schematic structural diagram of a terminal according to an embodiment of the present invention;
图13为本发明实施例核心网设备一个结构示意图;FIG. 13 is a schematic structural diagram of a core network device according to an embodiment of the present invention;
图14为本发明实施例核心网设备另一个结构示意图。FIG. 14 is another schematic structural diagram of a core network device according to an embodiment of the present invention.
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be described with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
本发明实施例提供的小区切换方法可以应用于网关互联的网络架构,也可以应用于统一融合的网络架构。本发明实施例中所提到的终端为同时支持宽带系统和窄带系统的双模终端,终端处于双待机模式,即终端同时在宽带服务小区和窄带服务小区注册并在网,且终端正通过宽带服务小区参与一个呼叫(单呼或组呼)。本发明实施例提供的小区切换方法,使得终端在移动到宽带无线信号覆盖不好而窄带无线信号覆盖良好的区域时,可以从宽带服务小区切换到窄带目标小区,继续保持呼叫,避免掉话。本发明实施例中所提到的终端可以为对讲机。The cell handover method provided by the embodiment of the present invention can be applied to a network architecture of a gateway interconnection, and can also be applied to a unified and converged network architecture. The terminal mentioned in the embodiment of the present invention is a dual mode terminal supporting both a broadband system and a narrowband system, and the terminal is in a dual standby mode, that is, the terminal is simultaneously registered in the broadband serving cell and the narrowband serving cell and is in the network, and the terminal is passing the broadband. The serving cell participates in a call (single call or group call). The cell handover method provided by the embodiment of the present invention enables the terminal to switch from the broadband serving cell to the narrowband target cell when moving to an area where the coverage of the broadband wireless signal is not good and the coverage of the narrowband wireless signal is good, and the call is continued to avoid call drop. The terminal mentioned in the embodiment of the present invention may be a walkie-talkie.
下面先介绍网关互联的网络架构下本发明实施例提供的小区切换方法,请参阅图3,本实施例的小区切换方法包括:The following describes the cell handover method provided by the embodiment of the present invention in the network architecture of the gateway interconnection. Referring to FIG. 3, the cell handover method in this embodiment includes:
301、终端在宽带服务小区参与当前呼叫,该终端在宽带服务小区及该窄带服务小区均注册。301. The terminal participates in a current call in a broadband serving cell, and the terminal is registered in both the broadband serving cell and the narrowband serving cell.
该终端在该宽带服务小区中发起当前呼叫,该终端为集群双模终端。即该终端可以在宽带服务小区进行通话,也可以在窄带服务小区进行通话。The terminal initiates a current call in the broadband serving cell, and the terminal is a cluster dual mode terminal. That is, the terminal can make a call in the broadband serving cell, or can make a call in the narrowband serving cell.
302、终端获取窄带目标小区中存在的当前呼叫的业务信道的信息。302. The terminal acquires information about a service channel of a current call existing in the narrowband target cell.
具体实现中,终端可以同时监测宽带集群系统当前服务小区(即宽带服务
小区)的信号质量(例如可根据参考信号接收功率RSRP或参考信号接收质量RSRQ来衡量)和窄带集群系统当前服务小区(即窄带服务小区)及其邻区的信号质量(例如可根据接收信号强度指示RSSI或误码率BER来衡量),通过预设的判决算法判断当前是否满足切换条件,例如当宽带服务小区的信号质量低于第一预设阈值,而窄带服务小区或其邻区的信号质量高于第二预设阈值,则认为满足切换条件,第二预设阈值大于等于第一预设阈值。In a specific implementation, the terminal can simultaneously monitor the current serving cell of the broadband cluster system (ie, broadband service)
Signal quality of the cell (eg, measurable from reference signal received power RSRP or reference signal received quality RSRQ) and signal quality of the current serving cell (ie, narrowband serving cell) of the narrowband trunk system and its neighbors (eg, based on received signal strength) Indicating the RSSI or the error rate BER to determine whether the handover condition is currently satisfied by a preset decision algorithm, for example, when the signal quality of the broadband serving cell is lower than the first preset threshold, and the signal of the narrowband serving cell or its neighboring cell If the quality is higher than the second preset threshold, it is considered that the switching condition is met, and the second preset threshold is greater than or equal to the first preset threshold.
在确定满足切换条件并确定需要切换时,终端需要获取窄带目标小区中存在的当前呼叫的业务信道的信息。When it is determined that the handover condition is met and it is determined that the handover is required, the terminal needs to acquire information of the traffic channel of the current call existing in the narrowband target cell.
其中,窄带目标小区中存在的当前呼叫的业务信道可以是切换之前分配的(例如窄带目标小区中本身就存在属于当前呼叫的成员,窄带目标小区已参与当前呼叫);或者窄带目标小区中存在的当前呼叫的业务信道为切换时实时分配的(例如窄带目标小区未参与当前呼叫,窄带目标小区归属的窄带核心网在接收到终端的请求后,控制窄带目标小区对应的窄带集群基站,在窄带目标小区实时为当前呼叫分配一个业务信道)。The traffic channel of the current call existing in the narrowband target cell may be allocated before the handover (for example, the narrowband target cell itself has a member belonging to the current call, the narrowband target cell has participated in the current call); or the narrowband target cell exists. The traffic channel of the current call is allocated in real time during handover (for example, the narrowband target cell does not participate in the current call, and the narrowband core network to which the narrowband target cell belongs receives the request of the terminal, and controls the narrowband cluster base station corresponding to the narrowband target cell, in the narrowband target The cell allocates a traffic channel to the current call in real time).
窄带目标小区中存在的当前呼叫的业务信道的信息可以包括该业务信道的信道号(Channel No)、时隙号(Slot No)、对齐模式(Align Mode)等。另外,窄带目标小区归属的窄带核心网还可以将窄带目标小区的控制信道的信息发送给终端。The information of the traffic channel of the current call existing in the narrowband target cell may include a channel number (Channel No), a slot number (Slot No), an Align Mode, and the like of the traffic channel. In addition, the narrowband core network to which the narrowband target cell belongs may also send information of the control channel of the narrowband target cell to the terminal.
303、终端根据获取的该业务信道的信息从该宽带服务小区切换至该窄带目标小区继续该当前呼叫。303. The terminal switches from the broadband serving cell to the narrowband target cell according to the obtained information of the traffic channel to continue the current call.
如果窄带目标小区中存在的当前呼叫的业务信道为切换之前分配的,且窄带服务小区的邻区列表里包括窄带目标小区,则终端获取该业务信道的信息的方法如下:在网关互联的网络结构下,当前呼叫的第一个成员请求窄带目标小区的业务信道的信息时,窄带目标小区对应的窄带集群基站受控于窄带目标小区归属的窄带核心网,在窄带目标小区为当前呼叫分配业务信道,分配完成后,将该业务信道的信息反馈给第一个请求的成员,另外,窄带目标小区归属的窄带核心网还通过窄带服务小区归属的窄带核心网将该业务信道的信息发送给窄带服务小区对应的窄带集群基站,当终端要切换到上述窄带目标小区并需要获取该业务信道的信息时,终端可以通过窄带服务小区对应的窄带集群基站发
送的广播消息获取窄带目标小区中存在的当期呼叫的业务信道的信息;而在统一融合的网络架构下,当前呼叫的第一个成员请求窄带目标小区的业务信道的信息时,窄带目标小区对应的窄带集群基站受控于统一融合核心网,在窄带目标小区为当前呼叫分配业务信道,分配完成后,将该业务信道的信息反馈给第一个请求的成员,另外,统一融合核心网还将该业务信道的信息发送给窄带服务小区对应的窄带集群基站,当终端要切换到上述窄带目标小区并需要获取该业务信道的信息时,终端可以通过窄带服务小区对应的窄带集群基站发送的广播消息获取窄带目标小区中存在的当期呼叫的业务信道的信息。If the traffic channel of the current call existing in the narrowband target cell is allocated before the handover, and the neighboring cell list of the narrowband serving cell includes the narrowband target cell, the method for the terminal to acquire the information of the traffic channel is as follows: the network structure of the gateway interconnection When the first member of the current call requests the information of the traffic channel of the narrowband target cell, the narrowband cluster base station corresponding to the narrowband target cell is controlled by the narrowband core network to which the narrowband target cell belongs, and the traffic channel is allocated for the current call in the narrowband target cell. After the allocation is completed, the information of the traffic channel is fed back to the first requesting member, and the narrowband core network to which the narrowband target cell belongs is also sent to the narrowband service through the narrowband core network to which the narrowband serving cell belongs. The narrow-band cluster base station corresponding to the cell may be sent by the narrow-band cluster base station corresponding to the narrow-band serving cell when the terminal is to be switched to the narrow-band target cell and needs to obtain the information of the service channel.
The broadcast message is sent to obtain the information of the traffic channel of the current call existing in the narrowband target cell; and in the unified network architecture, when the first member of the current call requests the information of the traffic channel of the narrowband target cell, the narrowband target cell corresponds to The narrowband cluster base station is controlled by the unified converged core network, and allocates a traffic channel for the current call in the narrowband target cell. After the allocation is completed, the information of the traffic channel is fed back to the first requesting member, and the unified converged core network will also be The information of the traffic channel is sent to the narrowband cluster base station corresponding to the narrowband serving cell. When the terminal wants to switch to the narrowband target cell and needs to obtain the information of the traffic channel, the terminal may send the broadcast message through the narrowband cluster base station corresponding to the narrowband serving cell. Obtaining information of a traffic channel of a current call existing in the narrowband target cell.
下面几个实施例详细介绍终端请求核心网在窄带目标小区中为当前呼叫分配业务信道以及获取到业务信道的信息的方法。其中,图4至图8对应网关互联的网络结构,图9至图10对应统一融合的网络架构。The following embodiments describe in detail a method for a terminal to request a core network to allocate a traffic channel for a current call and obtain information of a traffic channel in a narrowband target cell. 4 to 8 correspond to the network structure of the gateway interconnection, and FIG. 9 to FIG. 10 correspond to the unified and integrated network architecture.
首先请参阅图4,本实施例中,该业务信道为窄带目标小区对应的窄带集群基站在窄带目标小区归属的窄带核心网的控制下实时为当前呼叫分配的,当前呼叫为单呼,终端当前处于宽带服务小区,欲切换至窄带目标小区继续当前呼叫,具体方法包括:Referring to FIG. 4, in this embodiment, the narrowband cluster base station corresponding to the narrowband target cell is allocated to the current call in real time under the control of the narrowband core network to which the narrowband target cell belongs, and the current call is a single call, and the terminal is currently In the broadband serving cell, to switch to the narrowband target cell to continue the current call, the specific methods include:
终端在确定需要进行小区切换后,通过宽带集群基站向宽带核心网发送小区切换请求,小区切换请求中包括当前呼叫的呼叫标识(call ID),窄带目标小区的LAI;After determining that the cell handover is required, the terminal sends a cell handover request to the broadband core network through the broadband cluster base station, where the cell handover request includes a call identifier of the current call, and a LAI of the narrowband target cell;
宽带核心网根据呼叫标识查询到主被叫地址,根据窄带目标小区的LAI获取窄带目标小区归属的窄带核心网,向网关(Gateway,GW)发送SIP REFER消息,SIP REFER消息中携带主被叫地址及窄带目标小区的LAI;The broadband core network queries the calling and called addresses according to the call identity, obtains the narrowband core network to which the narrowband target cell belongs according to the LAI of the narrowband target cell, and sends a SIP REFER message to the gateway (Gateway, GW), where the SIP REFER message carries the calling and called addresses. And the LAI of the narrowband target cell;
网关将SIP REFER消息转换为PSIP PREPARE信令,向窄带目标小区归属的窄带核心网发送PSIP PREPARE信令;The gateway converts the SIP REFER message into PSIP PREPARE signaling, and sends PSIP PREPARE signaling to the narrowband core network to which the narrowband target cell belongs;
窄带目标小区归属的窄带核心网向网关返回PSIP 200 OK,PSIP 200 OK中携带越区切换号(Handover No),网关获得越区切换号之后,向窄带目标小区归属的窄带核心网发送PSIP INVITE请求,PSIP INVITE请求中包含主被叫地址及越区切换号,窄带目标小区归属的窄带核心网接收到PSIP INVITE请求之后,控制窄带目标小区对应的窄带集群基站在窄带目标小区为当前呼叫分配业务信道,然后向网关发送PSIP 200 OK,PSIP 200 OK中携带有在窄带目标
小区中为当前呼叫分配的业务信道的信息;The narrowband core network to which the narrowband target cell belongs returns a PSIP 200 OK to the gateway, and the PSIP 200 OK carries the handover number (Handover No). After the gateway obtains the handover number, the gateway sends a PSIP INVITE request to the narrowband core network to which the narrowband target cell belongs. The PSIP INVITE request includes the calling and called addresses and the handover number. After receiving the PSIP INVITE request, the narrowband core network to which the narrowband target cell belongs, controls the narrowband cluster base station corresponding to the narrowband target cell to allocate the traffic channel for the current call in the narrowband target cell. And then send the PSIP 200 OK to the gateway, which carries the narrowband target in the PSIP 200 OK
Information of the traffic channel allocated for the current call in the cell;
网关向宽带核心网返回SIP 200 OK,SIP 200 OK中包含窄带目标小区中存在当前呼叫的业务信道的信息,然后网关向窄带目标小区归属的窄带核心网发送PSIP ACK;The gateway returns a SIP 200 OK to the broadband core network, where the SIP 200 OK includes information about the traffic channel of the current call in the narrowband target cell, and then the gateway sends a PSIP ACK to the narrowband core network to which the narrowband target cell belongs;
宽带核心网收到携带有窄带目标小区中存在当前呼叫的业务信道的信息的SIP 200 OK之后,通过宽带集群基站向终端发送小区切换响应,小区切换响应中包含窄带目标小区中存在当前呼叫的业务信道的信息;After receiving the SIP 200 OK carrying the information of the traffic channel of the current call in the narrowband target cell, the broadband core network sends a cell handover response to the terminal through the broadband cluster base station, where the cell handover response includes the service of the current call in the narrowband target cell. Channel information;
终端在接收到小区切换响应之后,从宽带服务小区切换至窄带目标小区,继续当前呼叫。After receiving the cell handover response, the terminal switches from the broadband serving cell to the narrowband target cell to continue the current call.
上述过程中,窄带目标小区中存在当前呼叫的业务信道的信息是通过宽带空口发送给终端的,实际中,还可以将窄带目标小区中存在当前呼叫的业务信道的信息通过窄带空口发送给终端,即在宽带核心网收到携带有窄带目标小区中存在当前呼叫的业务信道的信息的SIP 200 OK之后,还可以向网关发送SIP NOTIFY,网关收到SIP NOTIFY之后,通过窄带服务小区归属的窄带核心网向窄带服务小区对应的窄带集群基站发送PSIP NOTIFY,窄带服务小区对应的窄带集群基站收到PSIP NOTIFY之后,向终端发送P_BCAST,其中,SIP NOTIFY、PSIP NOTIFY及P_BCAST中均包含窄带目标小区中存在当前呼叫的业务信道的信息。另外,为增加通信的可靠性,还可以将窄带目标小区中存在当前呼叫的业务信道的信息通过宽带空口和窄带空口同时发送给终端。In the above process, the information of the service channel of the current call in the narrowband target cell is sent to the terminal through the broadband air interface. In practice, the information of the service channel in the narrowband target cell that exists on the current call may be sent to the terminal through the narrowband air interface. That is, after the broadband core network receives the SIP 200 OK carrying the information of the traffic channel of the current call in the narrowband target cell, the SIP NOTIFY may also be sent to the gateway, and after the gateway receives the SIP NOTIFY, the narrowband core belongs to the narrowband serving cell. The network sends a PSIP NOTIFY to the narrow-band cluster base station corresponding to the narrow-band serving cell, and the narrow-band cluster base station corresponding to the narrow-band serving cell sends the P_BCAST to the terminal after receiving the PSIP NOTIFY, wherein the SIP NOTIFY, PSIP NOTIFY, and P_BCAST both exist in the narrow-band target cell. Information about the traffic channel of the current call. In addition, in order to increase the reliability of the communication, information of the traffic channel in which the current call exists in the narrowband target cell may be simultaneously transmitted to the terminal through the broadband air interface and the narrowband air interface.
另外,图4所示方法也适用于窄带目标小区中存在的当前呼叫的业务信道为切换之前分配的,但窄带服务小区的邻区列表里不包括窄带目标小区的情况,这种情况下,窄带目标小区归属的窄带核心网接收到网关发送的PSIP PREPARE信令指令之后,直接向网关返回携带有该业务信道的信息的PSIP200 OK,后续网关无需再向窄带目标小区归属的窄带核心网发送PSIP INVITE,直接向宽带核心网反馈SIP 200 OK即可。In addition, the method shown in FIG. 4 is also applicable to the traffic channel of the current call existing in the narrowband target cell, which is allocated before the handover, but the narrowband target cell does not include the narrowband target cell in the neighboring cell list. In this case, the narrowband After receiving the PSIP PREPARE signaling command sent by the gateway, the narrowband core network to which the target cell belongs directly returns the PSIP200 OK carrying the information of the traffic channel to the gateway, and the subsequent gateway does not need to send the PSIP INVITE to the narrowband core network to which the narrowband target cell belongs. Directly feed the SIP 200 OK to the broadband core network.
请参阅图5,本实施例中,该业务信道为窄带目标小区对应的窄带集群基站在窄带目标小区归属的窄带核心网的控制下实时为当前呼叫分配的,当前呼叫为组呼,组归属宽带核心网,终端当前处于宽带服务小区,欲切换至窄带目标小区继续当前呼叫,具体方法包括:
Referring to FIG. 5, in this embodiment, the narrowband cluster base station corresponding to the narrowband target cell is allocated for the current call in real time under the control of the narrowband core network to which the narrowband target cell belongs, and the current call is a group call, and the group belongs to the broadband. The core network, the terminal is currently in the broadband serving cell, and wants to switch to the narrowband target cell to continue the current call, and the specific methods include:
终端在确定需要进行小区切换后,通过宽带集群基站向宽带核心网发送小区切换请求,小区切换请求中包括当前呼叫的呼叫标识(call ID),窄带目标小区的LAI;After determining that the cell handover is required, the terminal sends a cell handover request to the broadband core network through the broadband cluster base station, where the cell handover request includes a call identifier of the current call, and a LAI of the narrowband target cell;
宽带核心网根据呼叫标识查询到主被叫地址,根据窄带目标小区的LAI获取窄带目标小区归属的窄带核心网,向网关发送SIP REFER消息,SIP REFER消息中携带发起小区切换请求的终端的标识、主被叫地址及窄带目标小区的LAI;The broadband core network queries the calling and called address according to the call identifier, obtains the narrowband core network to which the narrowband target cell belongs according to the LAI of the narrowband target cell, and sends a SIP REFER message to the gateway, where the SIP REFER message carries the identifier of the terminal that initiates the cell handover request, The primary and called addresses and the LAI of the narrowband target cell;
网关将SIP REFER消息转换为PSIP PREPARE信令,向窄带目标小区归属的窄带核心网发送PSIP PREPARE信令;The gateway converts the SIP REFER message into PSIP PREPARE signaling, and sends PSIP PREPARE signaling to the narrowband core network to which the narrowband target cell belongs;
窄带目标小区归属的窄带核心网向网关返回PSIP 200 OK,PSIP 200 OK中携带越区切换号(Handover No),网关获得越区切换号之后,向窄带目标小区归属的窄带核心网发送PSIP INVITE请求,PSIP INVITE请求中包含主被叫地址及越区切换号,窄带目标小区归属的窄带核心网接收到PSIP INVITE请求之后,控制窄带目标小区对应的窄带集群基站在窄带目标小区为当前呼叫分配业务信道,然后向网关发送PSIP 200 OK,PSIP 200 OK中携带有在窄带目标小区中为当前呼叫分配的业务信道的信息;The narrowband core network to which the narrowband target cell belongs returns a PSIP 200 OK to the gateway, and the PSIP 200 OK carries the handover number (Handover No). After the gateway obtains the handover number, the gateway sends a PSIP INVITE request to the narrowband core network to which the narrowband target cell belongs. The PSIP INVITE request includes the calling and called addresses and the handover number. After receiving the PSIP INVITE request, the narrowband core network to which the narrowband target cell belongs, controls the narrowband cluster base station corresponding to the narrowband target cell to allocate the traffic channel for the current call in the narrowband target cell. And then sending a PSIP 200 OK to the gateway, the PSIP 200 OK carrying information of the traffic channel allocated for the current call in the narrowband target cell;
网关向窄带目标小区归属的窄带核心网发送PSIP ACK,然后网关向宽带核心网返回SIP 200 OK,SIP 200 OK中包含窄带目标小区中存在当前呼叫的业务信道的信息;The gateway sends a PSIP ACK to the narrowband core network to which the narrowband target cell belongs, and then the gateway returns a SIP 200 OK to the broadband core network, where the SIP 200 OK includes information of the service channel in the narrowband target cell where the current call exists;
宽带核心网收到携带有窄带目标小区中存在当前呼叫的业务信道的信息的SIP 200 OK之后,通过宽带集群基站向终端发送小区切换响应,小区切换响应中包含窄带目标小区中存在当前呼叫的业务信道的信息;After receiving the SIP 200 OK carrying the information of the traffic channel of the current call in the narrowband target cell, the broadband core network sends a cell handover response to the terminal through the broadband cluster base station, where the cell handover response includes the service of the current call in the narrowband target cell. Channel information;
终端在接收到小区切换响应之后,从宽带服务小区切换至窄带目标小区,继续当前呼叫。After receiving the cell handover response, the terminal switches from the broadband serving cell to the narrowband target cell to continue the current call.
上述过程中,窄带目标小区中存在当前呼叫的业务信道的信息是通过宽带空口发送给终端的,实际中,还可以将窄带目标小区中存在当前呼叫的业务信道的信息通过窄带空口发送给终端,即在宽带核心网收到携带有窄带目标小区中存在当前呼叫的业务信道的信息的SIP 200 OK之后,还可以向网关发送SIP NOTIFY,网关收到SIP NOTIFY之后,通过窄带服务小区归属的窄带核心网
向窄带服务小区对应的窄带集群基站发送PSIP NOTIFY,窄带服务小区对应的窄带集群基站收到PSIP NOTIFY之后,向终端发送P_BCAST,其中,SIP NOTIFY、PSIP NOTIFY及P_BCAST中均包含窄带目标小区中存在当前呼叫的业务信道的信息。另外,为增加通信的可靠性,还可以将窄带目标小区中存在当前呼叫的业务信道的信息通过宽带空口和窄带空口同时发送给终端。In the above process, the information of the service channel of the current call in the narrowband target cell is sent to the terminal through the broadband air interface. In practice, the information of the service channel in the narrowband target cell that exists on the current call may be sent to the terminal through the narrowband air interface. That is, after the broadband core network receives the SIP 200 OK carrying the information of the traffic channel of the current call in the narrowband target cell, the SIP NOTIFY may also be sent to the gateway, and after the gateway receives the SIP NOTIFY, the narrowband core belongs to the narrowband serving cell. network
Sending a PSIP NOTIFY to the narrow-band cluster base station corresponding to the narrow-band serving cell, and the narrow-band cluster base station corresponding to the narrow-band serving cell sends the P_BCAST to the terminal after receiving the PSIP NOTIFY, where the SIP NOTIFY, the PSIP NOTIFY, and the P_BCAST each include the current presence in the narrow-band target cell. Information about the traffic channel of the call. In addition, in order to increase the reliability of the communication, information of the traffic channel in which the current call exists in the narrowband target cell may be simultaneously transmitted to the terminal through the broadband air interface and the narrowband air interface.
另外,图5所示方法也适用于窄带目标小区中存在的当前呼叫的业务信道为切换之前分配的,但窄带服务小区的邻区列表里不包括窄带目标小区的情况,这种情况下,窄带目标小区归属的窄带核心网接收到网关发送的PSIP PREPARE信令指令之后,直接向网关返回携带有该业务信道的信息的PSIP200 OK,后续网关无需再向窄带目标小区归属的窄带核心网发送PSIP INVITE,直接向宽带核心网反馈SIP 200 OK即可。In addition, the method shown in FIG. 5 is also applicable to the traffic channel of the current call existing in the narrowband target cell, which is allocated before the handover, but the narrowband target cell does not include the narrowband target cell in the neighboring cell list. In this case, the narrowband After receiving the PSIP PREPARE signaling command sent by the gateway, the narrowband core network to which the target cell belongs directly returns the PSIP200 OK carrying the information of the traffic channel to the gateway, and the subsequent gateway does not need to send the PSIP INVITE to the narrowband core network to which the narrowband target cell belongs. Directly feed the SIP 200 OK to the broadband core network.
请参阅图6,本实施例中,该业务信道为窄带目标小区对应的窄带集群基站在窄带目标小区归属的窄带核心网的控制下实时为当前呼叫分配的,当前呼叫为组呼,组归属窄带核心网,终端当前处于宽带服务小区,欲切换至窄带目标小区继续当前呼叫,具体方法包括:Referring to FIG. 6, in this embodiment, the narrowband cluster base station corresponding to the narrowband target cell is allocated for the current call in real time under the control of the narrowband core network to which the narrowband target cell belongs, and the current call is a group call, and the group belongs to a narrowband. The core network, the terminal is currently in the broadband serving cell, and wants to switch to the narrowband target cell to continue the current call, and the specific methods include:
终端在确定需要进行小区切换后,通过宽带集群基站向宽带核心网发送小区切换请求,小区切换请求中包括当前呼叫的呼叫标识(call ID),窄带目标小区的LAI;After determining that the cell handover is required, the terminal sends a cell handover request to the broadband core network through the broadband cluster base station, where the cell handover request includes a call identifier of the current call, and a LAI of the narrowband target cell;
宽带核心网根据呼叫标识查询到主被叫地址,根据窄带目标小区的LAI获取窄带目标小区归属的窄带核心网,向网关发送SIP REFER消息,SIP REFER消息中携带发起小区切换请求的终端的标识、主被叫地址及窄带目标小区的LAI;The broadband core network queries the calling and called address according to the call identifier, obtains the narrowband core network to which the narrowband target cell belongs according to the LAI of the narrowband target cell, and sends a SIP REFER message to the gateway, where the SIP REFER message carries the identifier of the terminal that initiates the cell handover request, The primary and called addresses and the LAI of the narrowband target cell;
网关将SIP REFER消息转换为PSIP PREPARE信令,向组归属的窄带核心网发送PSIP PREPARE信令;The gateway converts the SIP REFER message into PSIP PREPARE signaling, and sends PSIP PREPARE signaling to the narrowband core network to which the group belongs;
组归属的窄带核心网将PSIP PREPARE信令转发给窄带目标小区归属的窄带核心网;The group-owned narrowband core network forwards the PSIP PREPARE signaling to the narrowband core network to which the narrowband target cell belongs;
窄带目标小区归属的窄带核心网向组归属的窄带核心网返回PSIP 200 OK,PSIP 200 OK中携带越区切换号(Handover No),组归属的窄带核心网获得越区切换号之后,向窄带目标小区归属的窄带核心网发送PSIP INVITE请
求,PSIP INVITE请求中包含主被叫地址及越区切换号,窄带目标小区归属的窄带核心网接收到PSIP INVITE请求之后,控制窄带目标小区对应的窄带集群基站在窄带目标小区为当前呼叫分配业务信道,然后向组归属的窄带核心网发送PSIP 200 OK,PSIP 200 OK中携带有在窄带目标小区中为当前呼叫分配的业务信道的信息;The narrowband core network to which the narrowband target cell belongs returns a PSIP 200 OK to the narrowband core network to which the group belongs, and the PSIP 200 OK carries the handover number (Handover No), and the narrowband core network to which the group belongs obtains the handover number to the narrowband target The narrowband core network to which the cell belongs sends a PSIP INVITE request.
Therefore, the PSIP INVITE request includes the calling and called address and the handover number, and the narrowband core network to which the narrowband target cell belongs receives the PSIP INVITE request, and controls the narrowband cluster base station corresponding to the narrowband target cell to allocate the service to the current call in the narrowband target cell. The channel then sends a PSIP 200 OK to the narrowband core network to which the group belongs, and the PSIP 200 OK carries information of the traffic channel allocated for the current call in the narrowband target cell;
组归属的窄带核心网向窄带目标小区归属的窄带核心网发送PSIP ACK,然后将PSIP 200 OK转发给网关;The narrowband core network to which the group belongs sends a PSIP ACK to the narrowband core network to which the narrowband target cell belongs, and then forwards the PSIP 200 OK to the gateway;
网关向宽带核心网返回SIP 200 OK,SIP 200 OK中包含窄带目标小区中存在当前呼叫的业务信道的信息;The gateway returns a SIP 200 OK to the broadband core network, where the SIP 200 OK includes information about the service channel of the current call in the narrowband target cell;
宽带核心网收到携带有窄带目标小区中存在当前呼叫的业务信道的信息的SIP 200 OK之后,通过宽带集群基站向终端发送小区切换响应,小区切换响应中包含窄带目标小区中存在当前呼叫的业务信道的信息;After receiving the SIP 200 OK carrying the information of the traffic channel of the current call in the narrowband target cell, the broadband core network sends a cell handover response to the terminal through the broadband cluster base station, where the cell handover response includes the service of the current call in the narrowband target cell. Channel information;
终端在接收到小区切换响应之后,从宽带服务小区切换至窄带目标小区,继续当前呼叫。After receiving the cell handover response, the terminal switches from the broadband serving cell to the narrowband target cell to continue the current call.
上述过程中,窄带目标小区中存在当前呼叫的业务信道的信息是通过宽带空口发送给终端的,实际中,还可以将窄带目标小区中存在当前呼叫的业务信道的信息通过窄带空口发送给终端,即在组归属的窄带核心网接收到携带有窄带目标小区中存在当前呼叫的业务信道的信息的PSIP 200 OK之后,还可以通过窄带服务小区归属的窄带核心网向窄带服务小区对应的窄带集群基站发送PSIP NOTIFY,窄带服务小区对应的窄带集群基站收到PSIP NOTIFY之后,向终端发送P_BCAST,其中,PSIP NOTIFY及P_BCAST中均包含窄带目标小区中存在当前呼叫的业务信道的信息。另外,为增加通信的可靠性,还可以将窄带目标小区中存在当前呼叫的业务信道的信息通过宽带空口和窄带空口同时发送给终端。In the above process, the information of the service channel of the current call in the narrowband target cell is sent to the terminal through the broadband air interface. In practice, the information of the service channel in the narrowband target cell that exists on the current call may be sent to the terminal through the narrowband air interface. That is, after receiving the PSIP 200 OK carrying the information of the traffic channel of the current call in the narrowband target cell, the narrowband core network to which the group belongs may also pass the narrowband core network to which the narrowband serving cell belongs to the narrowband trunk base station corresponding to the narrowband serving cell. After the PSIP NOTIFY is sent, the narrowband trunking base station corresponding to the narrowband serving cell receives the PSIP STOPIFY, and then sends the P_BCAST to the terminal, where the PSIP NOTIFY and the P_BCAST both contain the information of the traffic channel in the narrowband target cell where the current call exists. In addition, in order to increase the reliability of the communication, information of the traffic channel in which the current call exists in the narrowband target cell may be simultaneously transmitted to the terminal through the broadband air interface and the narrowband air interface.
另外,图6所示方法也适用于窄带目标小区中存在的当前呼叫的业务信道为切换之前分配的,但窄带服务小区的邻区列表里不包括窄带目标小区的情况,这种情况下,窄带目标小区归属的窄带核心网接收到网关发送的PSIP PREPARE信令指令之后,直接向网关返回携带有该业务信道的信息的PSIP200 OK,后续组归属的窄带核心网无需再向窄带目标小区归属的窄带核心网
发送PSIP INVITE,直接向网关反馈携带有该业务信道的信息的PSIP 200 OK即可。In addition, the method shown in FIG. 6 is also applicable to the traffic channel of the current call existing in the narrowband target cell, which is allocated before the handover, but the narrowband target cell does not include the narrowband target cell in the neighboring cell list. In this case, the narrowband After receiving the PSIP PREPARE signaling command sent by the gateway, the narrowband core network to which the target cell belongs directly returns the PSIP200 OK carrying the information of the traffic channel to the gateway, and the narrowband core network to which the subsequent group belongs does not need to be narrowband to the narrowband target cell. Core Network
Send the PSIP INVITE and directly feed back to the gateway the PSIP 200 OK carrying the information of the traffic channel.
上面的几个实施例中,终端均是通过在宽带集群基站发起小区切换请求实现小区切换,在本发明另一些实施例中,如果当前呼叫为组呼,终端还可以通过在窄带目标小区对应的窄带集群基站直接发起呼叫建立请求实现小区切换,具体可参阅图7和图8。In the above embodiments, the terminal performs cell handover by initiating a cell handover request in the broadband cluster base station. In other embodiments of the present invention, if the current call is a group call, the terminal may also correspond to the narrowband target cell. The narrowband cluster base station directly initiates a call setup request to implement cell handover. For details, refer to FIG. 7 and FIG. 8.
图7中,该业务信道为窄带目标小区对应的窄带集群基站在窄带目标小区归属的窄带核心网的控制下实时为当前呼叫分配的,当前呼叫为组呼,组归属宽带核心网,终端当前处于宽带服务小区,欲切换至窄带目标小区继续当前呼叫,具体方法包括:In FIG. 7, the narrowband cluster base station corresponding to the narrowband target cell is allocated for the current call in real time under the control of the narrowband core network to which the narrowband target cell belongs, and the current call is a group call, and the group belongs to the broadband core network, and the terminal is currently in the The broadband serving cell wants to switch to the narrowband target cell to continue the current call, and the specific methods include:
终端在确定需要进行小区切换后,通过窄带目标小区对应的窄带集群基站向窄带目标小区归属的窄带核心网发送呼叫建立请求,呼叫建立请求中包括上述组呼的组标识,组标识可以是组地址,另外,呼叫建立请求中还可以包括呼叫类型(即组呼),终端的地址等;After determining that the cell handover is required, the terminal sends a call setup request to the narrowband core network to which the narrowband target cell belongs by using the narrowband cluster base station corresponding to the narrowband target cell, where the call setup request includes the group identifier of the group call, and the group identifier may be a group address. In addition, the call setup request may further include a call type (ie, a group call), an address of the terminal, and the like;
窄带目标小区归属的窄带核心网向网关发送PSIP INVITE消息,PSIP INVITE消息中包含组标识、终端的地址等;The narrowband core network to which the narrowband target cell belongs sends a PSIP INVITE message to the gateway, where the PSIP INVITE message includes the group identifier, the address of the terminal, and the like;
网关将PSIP INVITE消息转换成SIP INVITE消息,将SIP INVITE消息发送给宽带核心网;The gateway converts the PSIP INVITE message into a SIP INVITE message, and sends the SIP INVITE message to the broadband core network;
宽带核心网发现该组标识所标识的组呼已建立,因此把终端作为组成员直接并入到已有的该组呼中,然后向网关发送SIP 200 OK,SIP 200 OK中包含并组(Merge Group)标识及该组呼的主叫地址;The broadband core network finds that the group call identified by the group identifier has been established, so the terminal is directly incorporated into the existing group call as a group member, and then sends a SIP 200 OK to the gateway, and the SIP 200 OK includes the group (Merge Group) and the calling address of the group call;
网关向窄带目标小区归属的窄带核心网发送PSIP 200 OK,PSIP 200 OK中包含并组(Merge Group)标识及该组呼的主叫地址;The gateway sends a PSIP 200 OK to the narrowband core network to which the narrowband target cell belongs, and the PSIP 200 OK includes a Merge Group identifier and a calling address of the group call;
窄带目标小区归属的窄带核心网接收到PSIP 200 OK之后,向网关发送PSIP ACK,网关收到PSIP ACK之后,向宽带核心网发送SIP ACK;然后窄带目标小区归属的窄带核心网控制窄带目标小区对应的窄带集群基站在窄带目标小区为当前呼叫分配业务信道,分配完成后,通过窄带目标小区对应的窄带集群基站向终端发送呼叫建立响应,呼叫建立响应中包含窄带目标小区中存在的当前呼叫的业务信道的信息;
After receiving the PSIP 200 OK, the narrowband core network to which the narrowband target cell belongs receives the PSIP ACK, and after receiving the PSIP ACK, the gateway sends a SIP ACK to the broadband core network; then the narrowband core network to which the narrowband target cell belongs controls the narrowband target cell. The narrowband cluster base station allocates a traffic channel for the current call in the narrowband target cell, and after the allocation is completed, sends a call setup response to the terminal through the narrowband cluster base station corresponding to the narrowband target cell, where the call setup response includes the current call service existing in the narrowband target cell. Channel information;
终端在接收到呼叫建立响应之后,从宽带服务小区切换至窄带目标小区,继续当前呼叫。After receiving the call setup response, the terminal switches from the broadband serving cell to the narrowband target cell to continue the current call.
另外,图7所示方法也适用于窄带目标小区中存在的当前呼叫的业务信道为切换之前分配的,但窄带服务小区的邻区列表里不包括窄带目标小区的情况,这种情况下,窄带目标小区归属的窄带核心网向网关发送PSIP ACK之后,直接通过窄带目标小区对应的窄带集群基站向终端发送携带该业务信道的信息的呼叫建立响应即可,不需要再次分配业务信道。In addition, the method shown in FIG. 7 is also applicable to the traffic channel of the current call existing in the narrowband target cell, which is allocated before the handover, but the narrowband target cell does not include the narrowband target cell in the neighboring cell list. In this case, the narrowband The narrowband core network to which the target cell belongs sends a PSIP ACK to the gateway, and directly sends a call setup response carrying the information of the traffic channel to the terminal through the narrowband cluster base station corresponding to the narrowband target cell, and does not need to allocate the traffic channel again.
图8中,该业务信道为窄带目标小区对应的窄带集群基站在窄带目标小区归属的窄带核心网的控制下实时为当前呼叫分配的,当前呼叫为组呼,组归属窄带核心网,终端当前处于宽带服务小区,欲切换至窄带目标小区继续当前呼叫,具体方法包括:In FIG. 8, the narrowband cluster base station corresponding to the narrowband target cell is allocated for the current call in real time under the control of the narrowband core network to which the narrowband target cell belongs, and the current call is a group call, and the group belongs to the narrowband core network, and the terminal is currently in the network. The broadband serving cell wants to switch to the narrowband target cell to continue the current call, and the specific methods include:
终端在确定需要进行小区切换后,通过窄带目标小区对应的窄带集群基站向窄带目标小区归属的窄带核心网发送呼叫建立请求,呼叫建立请求中包括上述组呼的组标识,组标识可以是组地址,另外,呼叫建立请求中还可以包括呼叫类型(即组呼),终端的地址等;After determining that the cell handover is required, the terminal sends a call setup request to the narrowband core network to which the narrowband target cell belongs by using the narrowband cluster base station corresponding to the narrowband target cell, where the call setup request includes the group identifier of the group call, and the group identifier may be a group address. In addition, the call setup request may further include a call type (ie, a group call), an address of the terminal, and the like;
窄带目标小区归属的窄带核心网向组归属的窄带核心网发送PSIP INVITE消息,PSIP INVITE消息中包含组标识、终端的地址等;The narrowband core network to which the narrowband target cell belongs sends a PSIP INVITE message to the narrowband core network to which the group belongs, and the PSIP INVITE message includes the group identifier, the address of the terminal, and the like;
组归属的窄带核心网发现该组标识所标识的组呼已建立,因此把终端作为组成员直接并入到已有的该组呼中,然后向窄带目标小区归属的窄带核心网发送PSIP 200 OK,PSIP 200 OK中包含并组(Merge Group)标识及该组呼的主叫地址;The group-owned narrowband core network finds that the group call identified by the group identifier has been established, so the terminal is directly incorporated into the existing group call as a group member, and then sends a PSIP 200 OK to the narrowband core network to which the narrowband target cell belongs. The PSIP 200 OK includes a Merge Group identifier and a calling address of the group call;
窄带目标小区归属的窄带核心网接收到PSIP 200 OK之后,向组呼归属的窄带核心网发送PSIP ACK,然后控制窄带目标小区对应的窄带集群基站在窄带目标小区为当前呼叫分配业务信道,分配完成后,通过窄带目标小区对应的窄带集群基站向终端发送呼叫建立响应,呼叫建立响应中包含窄带目标小区中存在的当前呼叫的业务信道的信息;After receiving the PSIP 200 OK, the narrowband core network to which the narrowband target cell belongs sends a PSIP ACK to the narrowband core network to which the group call belongs, and then controls the narrowband cluster base station corresponding to the narrowband target cell to allocate a traffic channel for the current call in the narrowband target cell, and the allocation is completed. And transmitting, by the narrowband cluster base station corresponding to the narrowband target cell, a call setup response, where the call setup response includes information of a traffic channel of the current call existing in the narrowband target cell;
终端在接收到呼叫建立响应之后,从宽带服务小区切换至窄带目标小区,继续当前呼叫。After receiving the call setup response, the terminal switches from the broadband serving cell to the narrowband target cell to continue the current call.
另外,图8所示方法也适用于窄带目标小区中存在的当前呼叫的业务信道
为切换之前分配的,但窄带服务小区的邻区列表里不包括窄带目标小区的情况,这种情况下,窄带目标小区归属的窄带核心网向网关发送PSIP ACK之后,直接通过窄带目标小区对应的窄带集群基站向终端发送携带该业务信道的信息的呼叫建立响应即可,不需要再次分配业务信道。In addition, the method shown in FIG. 8 is also applicable to the traffic channel of the current call existing in the narrowband target cell.
For the case where the narrowband target cell is not included in the neighboring cell list of the narrowband serving cell, in this case, the narrowband core network to which the narrowband target cell belongs sends the PSIP ACK to the gateway, and directly passes through the narrowband target cell. The narrowband cluster base station may send a call setup response carrying the information of the traffic channel to the terminal, and does not need to allocate the traffic channel again.
上面几个实施例介绍了网关互联的网络架构下,当业务信道为实时分配的时,终端获取当前业务信道的信息的方法,下面几个实施例将介绍统一融合的网络架构下,当业务信道为实时分配的时,终端获取当前业务信道的信息的方法,请参阅图9和图10。The above embodiments describe the method for the terminal to obtain the information of the current traffic channel when the traffic channel is allocated in real time under the network architecture of the gateway interconnection. The following embodiments will introduce the unified convergence network architecture, when the traffic channel For the method of real-time allocation, the terminal acquires the information of the current traffic channel, please refer to FIG. 9 and FIG.
图9中,该业务信道为该窄带目标小区对应的窄带集群基站在统一融合核心网的控制下实时为当前呼叫分配的,当前呼叫为单呼或者组呼,终端当前处于宽带服务小区,欲切换至窄带目标小区继续当前呼叫,具体方法包括:In FIG. 9, the traffic channel is a narrowband cluster base station corresponding to the narrowband target cell, and is allocated to the current call in real time under the control of the unified convergence core network. The current call is a single call or a group call, and the terminal is currently in a broadband serving cell, and is to be switched. The current call is continued to the narrowband target cell, and the specific methods include:
终端在确定需要进行小区切换后,通过宽带集群基站向统一融合核心网发送小区切换请求,小区切换请求中包括当前呼叫的呼叫标识(call ID),窄带目标小区的LAI;After determining that the cell handover is required, the terminal sends a cell handover request to the unified converged core network through the broadband cluster base station, where the cell handover request includes a call ID of the current call, and a LAI of the narrowband target cell;
统一融合核心网控制窄带目标小区对应的窄带集群基站在窄带目标小区为当前呼叫分配业务信道,分配完成后,通过宽带集群基站向终端发送小区切换响应,小区切换响应中包括窄带目标小区中存在当前呼叫的业务信道的信息,另外,小区切换响应中还可以包括窄带目标小区的控制信道的信息;The unified converged core network controls the narrowband cluster base station corresponding to the narrowband target cell to allocate a traffic channel to the current call in the narrowband target cell. After the allocation is completed, the cell handover response is sent to the terminal through the broadband cluster base station, where the cell handover response includes the current presence in the narrowband target cell. The information of the traffic channel of the call, and the information about the control channel of the narrowband target cell may also be included in the cell handover response;
终端在接收到小区切换响应之后,从宽带服务小区切换至窄带目标小区,继续当前呼叫。After receiving the cell handover response, the terminal switches from the broadband serving cell to the narrowband target cell to continue the current call.
上述过程中,窄带目标小区中存在当前呼叫的业务信道的信息是通过宽带空口发送给终端的,实际中,还可以将窄带目标小区中存在当前呼叫的业务信道的信息通过窄带空口发送给终端,即统一融合核心网还可以通过窄带服务小区对应的窄带集群基站向终端发送P_BCAST,P_BCAST中包含窄带目标小区中存在当前呼叫的业务信道的信息。另外,为增加通信的可靠性,还可以将窄带目标小区中存在当前呼叫的业务信道的信息通过宽带空口和窄带空口同时发送给终端。In the above process, the information of the service channel of the current call in the narrowband target cell is sent to the terminal through the broadband air interface. In practice, the information of the service channel in the narrowband target cell that exists on the current call may be sent to the terminal through the narrowband air interface. That is, the unified converged core network may also send P_BCAST to the terminal through the narrowband cluster base station corresponding to the narrowband serving cell, where P_BCAST includes information of the service channel in the narrowband target cell where the current call exists. In addition, in order to increase the reliability of the communication, information of the traffic channel in which the current call exists in the narrowband target cell may be simultaneously transmitted to the terminal through the broadband air interface and the narrowband air interface.
另外,图9所示方法也适用于窄带目标小区中存在的当前呼叫的业务信道为切换之前分配的,但窄带服务小区的邻区列表里不包括窄带目标小区的情
况,这种情况下,统一融合核心网在接收到宽带集群基站发送的小区切换请求之后,直接通过宽带集群基站向终端发送携带该业务信道的信息的小区切换响应即可,不需要再次分配业务信道。In addition, the method shown in FIG. 9 is also applicable to the traffic channel of the current call existing in the narrowband target cell, which is allocated before the handover, but the neighboring cell list of the narrowband serving cell does not include the narrowband target cell.
In this case, after receiving the cell handover request sent by the broadband cluster base station, the unified convergence core network directly transmits the cell handover response carrying the information of the traffic channel to the terminal through the broadband cluster base station, and does not need to allocate the service again. channel.
图10中,该业务信道为窄带目标小区对应的窄带集群基站在统一融合核心网的控制下实时为当前呼叫分配的,当前呼叫为组呼,终端当前处于宽带服务小区,欲切换至窄带目标小区继续当前呼叫,具体方法包括:In FIG. 10, the narrowband cluster base station corresponding to the narrowband target cell is allocated for the current call in real time under the control of the unified converged core network, and the current call is a group call, and the terminal is currently in a broadband serving cell, and wants to switch to the narrowband target cell. Continue the current call, including:
终端在确定需要进行小区切换后,通过窄带目标小区对应的窄带集群基站向统一融合核心网发送呼叫建立请求(C_RAND),呼叫建立请求中包括组呼的组标识,组标识可以是组地址,另外,呼叫建立请求中还可以包括呼叫类型(即组呼),终端的地址等;After determining that the cell handover is required, the terminal sends a call setup request (C_RAND) to the unified converged core network through the narrowband cluster base station corresponding to the narrowband target cell, where the call setup request includes the group identifier of the group call, and the group identifier may be a group address, and The call setup request may further include a call type (ie, a group call), an address of the terminal, and the like;
统一融合核心网发现该组标识所标识的组呼已建立,因此把终端作为组成员直接并入到已有的该组呼中,然后控制窄带目标小区对应的窄带集群基站在窄带目标小区为当前呼叫分配业务信道,分配完成后,通过窄带目标小区对应的窄带集群基站向终端发送呼叫建立响应(MT_GRANT),呼叫建立响应中包括窄带目标小区中存在当前呼叫的业务信道的信息,另外,呼叫建立响应中还可以包括窄带目标小区的控制信道的信息;The unified converged core network finds that the group call identified by the group identifier is established, so the terminal is directly incorporated into the existing group call as a group member, and then the narrowband target base station corresponding to the narrowband target cell is controlled to be the current in the narrowband target cell. After the allocation is completed, the call setup response (MT_GRANT) is sent to the terminal through the narrowband cluster base station corresponding to the narrowband target cell, and the call setup response includes the information of the service channel of the current call in the narrowband target cell, and the call setup is performed. The response may also include information of a control channel of the narrowband target cell;
终端在接收到呼叫建立响应之后,从宽带服务小区切换至窄带目标小区,继续当前呼叫。After receiving the call setup response, the terminal switches from the broadband serving cell to the narrowband target cell to continue the current call.
另外,图10所示方法也适用于窄带目标小区中存在的当前呼叫的业务信道为切换之前分配的,但窄带服务小区的邻区列表里不包括窄带目标小区的情况,这种情况下,统一融合核心网在接收到宽带集群基站发送的呼叫建立请求之后,直接通过窄带目标小区对应的窄带集群基站向终端发送携带该业务信道的信息的呼叫建立响应即可,不需要再次分配业务信道。In addition, the method shown in FIG. 10 is also applicable to the traffic channel of the current call existing in the narrowband target cell, which is allocated before the handover, but the narrowband target cell does not include the narrowband target cell in the neighboring cell list. In this case, the unified After receiving the call setup request sent by the broadband cluster base station, the fused core network directly transmits the call setup response carrying the information of the traffic channel to the terminal through the narrowband cluster base station corresponding to the narrowband target cell, and does not need to allocate the traffic channel again.
下面介绍本发明实施例提供的终端,请参阅图11,本实施例的终端1100包括:The terminal provided by the embodiment of the present invention is described below. Referring to FIG. 11, the terminal 1100 of this embodiment includes:
呼叫模块1101,用于在宽带服务小区参与当前呼叫,该终端在该宽带服务小区及窄带服务小区均注册;The calling module 1101 is configured to participate in a current call in a broadband serving cell, where the terminal is registered in both the broadband serving cell and the narrowband serving cell;
获取模块1102,用于获取窄带目标小区中的当前呼叫的业务信道的信息;The obtaining module 1102 is configured to acquire information about a service channel of a current call in the narrowband target cell.
处理模块1103,用于根据该获取模块获取的该业务信道的信息从该宽带
服务小区切换至该窄带目标小区继续该当前呼叫。The processing module 1103 is configured to use the information about the traffic channel acquired by the acquiring module from the broadband
The serving cell switches to the narrowband target cell to continue the current call.
可选的,该获取模块1102包括:Optionally, the obtaining module 1102 includes:
请求单元,用于请求核心网设备为该当前呼叫在该窄带目标小区分配业务信道;a requesting unit, configured to request the core network device to allocate a traffic channel to the narrowband target cell for the current call;
第一获取单元,用于获取该业务信道的信息。The first acquiring unit is configured to acquire information about the traffic channel.
可选的,该获取模块1102还包括:Optionally, the obtaining module 1102 further includes:
第一接收单元,用于接收该窄带服务小区归属的窄带核心网发送的广播信息,该广播信息包括该窄带目标小区的业务信道的信息;a first receiving unit, configured to receive broadcast information sent by a narrowband core network to which the narrowband serving cell belongs, where the broadcast information includes information of a traffic channel of the narrowband target cell;
第二获取单元,用于根据该接收单元接收到的该广播信息获取业务信道列表;a second acquiring unit, configured to acquire a traffic channel list according to the broadcast information received by the receiving unit;
第一判断单元,用于判断该业务信道列表中是否存在该当前呼叫的业务信道的信息;a first determining unit, configured to determine whether the information of the service channel of the current call exists in the service channel list;
触发单元,用于若该业务信道列表中不存在该当前呼叫的业务信道的信息,则触发请求核心网设备为该当前呼叫在该窄带目标小区分配业务信道。The triggering unit is configured to: if the information of the traffic channel of the current call does not exist in the traffic channel list, trigger the requesting core network device to allocate a traffic channel to the narrowband target cell for the current call.
可选的,该请求单元包括:Optionally, the request unit includes:
第一处理子单元,用于通过宽带集群基站向宽带核心网发送小区切换请求,该小区切换请求中包括该当前呼叫的呼叫标识及该窄带目标小区的无线位置识别号LAI,以使得该宽带核心网可以根据该窄带目标小区的LAI识别该窄带目标小区归属的窄带核心网,并获取该窄带目标小区中该当前呼叫的业务信道的信息;a first processing subunit, configured to send a cell handover request to the broadband core network by using the broadband cluster base station, where the cell handover request includes a call identifier of the current call and a radio location identification number LAI of the narrowband target cell, so that the broadband core The network may identify the narrowband core network to which the narrowband target cell belongs according to the LAI of the narrowband target cell, and obtain information about the current channel of the current call in the narrowband target cell;
该第一获取单元包括:The first obtaining unit includes:
第一获取子单元,用于通过该宽带集群基站从该宽带核心网获取该当前呼叫的业务信道的信息;a first acquiring subunit, configured to acquire, by the broadband cluster base station, information of a traffic channel of the current call from the broadband core network;
和/或,and / or,
从该窄带服务小区对应的窄带集群基站获取该当前呼叫的业务信道的信息,该当前呼叫的业务信道的信息由该宽带核心发送给该窄带集群基站。Obtaining information of the traffic channel of the current call from the narrowband cluster base station corresponding to the narrowband serving cell, and the information of the traffic channel of the current call is sent by the broadband core to the narrowband cluster base station.
可选的,该请求单元包括:Optionally, the request unit includes:
第二处理子单元,用于判断该当前呼叫是否为组呼且组归属宽带核心网;a second processing sub-unit, configured to determine whether the current call is a group call and the group belongs to a broadband core network;
第一发送子单元,用于若该当前呼叫为组呼且组归属宽带核心网,则通过
该窄带目标小区对应的窄带集群基站向该窄带目标小区归属的窄带核心网发送呼叫建立请求,该呼叫建立请求中包括该组呼的组标识,以使得该窄带目标小区归属的窄带核心网向该组归属宽带核心网发送该呼叫建立请求,并获取该窄带目标小区中该当前呼叫的业务信道的信息;a first sending subunit, configured to: if the current call is a group call and the group belongs to a broadband core network, pass
The narrowband cluster base station corresponding to the narrowband target cell sends a call setup request to the narrowband core network to which the narrowband target cell belongs, where the call setup request includes the group identifier of the group call, so that the narrowband core network to which the narrowband target cell belongs The group home broadband core network sends the call setup request, and acquires information about the service channel of the current call in the narrowband target cell;
该第一获取单元包括:The first obtaining unit includes:
第二获取子单元,用于从该窄带目标小区对应的窄带集群基站获取该当前呼叫的业务信道的信息。And a second acquiring subunit, configured to acquire information about a traffic channel of the current call from the narrowband cluster base station corresponding to the narrowband target cell.
可选的,该请求单元包括:Optionally, the request unit includes:
第三处理子单元,用于判断该当前呼叫是否为组呼且组归属窄带核心网;a third processing sub-unit, configured to determine whether the current call is a group call and the group belongs to a narrowband core network;
第二发送子单元,用于若该当前呼叫为组呼且组归属窄带核心网,则通过该窄带目标小区对应的窄带集群基站向该窄带目标小区归属的窄带核心网发送呼叫建立请求,该呼叫建立请求中包括该组呼的组标识,以使得该窄带目标小区归属的窄带核心网根据该组标识将该终端并入该组呼,并获取该窄带目标小区中该当前呼叫的业务信道的信息;a second sending subunit, configured to send a call setup request to the narrowband core network to which the narrowband target cell belongs by using the narrowband cluster base station corresponding to the narrowband target cell if the current call is a group call and the group belongs to the narrowband core network, the call The group identifier of the group call is included in the establishment request, so that the narrowband core network to which the narrowband target cell belongs is merged into the group call according to the group identifier, and information about the service channel of the current call in the narrowband target cell is obtained. ;
该第一获取单元包括:The first obtaining unit includes:
第三获取子单元,用于从该窄带目标小区对应的窄带集群基站获取该当前呼叫的业务信道的信息。And a third acquiring subunit, configured to acquire information about a traffic channel of the current call from the narrowband cluster base station corresponding to the narrowband target cell.
可选的,该请求单元包括:Optionally, the request unit includes:
第四处理子单元,用于通过宽带集群基站向该统一融合核心网发送小区切换请求,该小区切换请求中包括该当前呼叫的呼叫标识及该窄带目标小区的无线位置识别号LAI,以使得该统一融合核心网根据该窄带目标小区的LAI和该呼叫标识为该当前呼叫在该窄带目标小区分配业务信道;a fourth processing subunit, configured to send a cell handover request to the unified converged core network by using the broadband cluster base station, where the cell handover request includes a call identifier of the current call and a radio location identification number LAI of the narrowband target cell, so that the The unified converged core network allocates a traffic channel in the narrowband target cell according to the LAI of the narrowband target cell and the call identifier for the current call;
该第一获取单元包括:The first obtaining unit includes:
第四获取子单元,用于从该宽带集群基站获取该业务信道的信息,该业务信道的信息由该统一融合核心网发送给该宽带集群基站;a fourth acquiring subunit, configured to acquire information of the traffic channel from the broadband cluster base station, where information of the traffic channel is sent by the unified converged core network to the broadband cluster base station;
和/或,and / or,
从窄带服务小区对应的窄带集群基站获取该业务信道的信息,该业务信道的信息由该统一融合核心网发送给该窄带集群基站。The information of the traffic channel is obtained from the narrowband cluster base station corresponding to the narrowband serving cell, and the information of the traffic channel is sent by the unified convergence core network to the narrowband cluster base station.
可选的,该请求单元包括:
Optionally, the request unit includes:
第五处理子单元,用于判断该当前呼叫是否为组呼;a fifth processing subunit, configured to determine whether the current call is a group call;
第三发送子单元,用于若该当前呼叫为组呼,则通过该窄带目标小区对应的窄带集群基站向该统一融合核心网发送呼叫建立请求,该呼叫建立请求包括该组呼的组标识,以使得该统一融合核心网根据该组标识通过将该终端并入该组呼为该当前呼叫在该窄带目标小区中分配业务信道;a third sending sub-unit, configured to send, by the narrow-band cluster base station corresponding to the narrow-band target cell, a call setup request to the unified converged core network, where the current call is a group call, where the call setup request includes a group identifier of the group call, So that the unified converged core network allocates a traffic channel in the narrowband target cell for the current call by incorporating the terminal into the group call according to the group identifier;
该第一获取单元包括:The first obtaining unit includes:
第五获取子单元,用于从该窄带目标小区对应的窄带集群基站获取该当前呼叫的业务信道的信息,该当前呼叫的业务信道的信息由该统一融合核心网发送给该窄带集群基站。And a fifth obtaining sub-unit, configured to acquire information of a traffic channel of the current call from the narrow-band cluster base station corresponding to the narrow-band target cell, where information of the traffic channel of the current call is sent by the unified converged core network to the narrow-band cluster base station.
可选的,该获取模块1102包括:Optionally, the obtaining module 1102 includes:
第二接收单元,用于接收该窄带服务小区发送的广播信息,该广播信息包括该窄带目标小区的业务信道信息;a second receiving unit, configured to receive broadcast information sent by the narrowband serving cell, where the broadcast information includes service channel information of the narrowband target cell;
第三获取单元,用于根据该接收单元接收的该广播信息生成业务信道列表;a third acquiring unit, configured to generate a traffic channel list according to the broadcast information received by the receiving unit;
第二判断单元,用于判断该生成单元生成的该业务信道列表中是否存在该当前呼叫的业务信道的信息;a second determining unit, configured to determine whether the information of the service channel of the current call exists in the service channel list generated by the generating unit;
处理单元,用于若该业务信道列表中存在该当前呼叫的业务信道的信息,则从该窄带服务小区对应的窄带集群基站获取该窄带目标小区中该当前呼叫的业务信道的信息。The processing unit is configured to: if the information of the traffic channel of the current call exists in the traffic channel list, obtain information about the traffic channel of the current call in the narrowband target cell from the narrowband cluster base station corresponding to the narrowband serving cell.
本发明实施例该的终端可以执行图3至图10任意一个方法实施例该的小区切换方法,其技术实现过程和技术效果可参考对应方法实施例的详细描述,此处不再赘述。The terminal in the embodiment of the present invention may perform the cell handover method in any one of the method embodiments of FIG. 3 to FIG. 10. The technical implementation process and the technical effect may refer to the detailed description of the corresponding method embodiment, and details are not described herein again.
以下从硬件装置的角度,对上述实施例的终端进行描述,请参阅图12,本实施例的终端1200包括:The following describes the terminal in the foregoing embodiment from the perspective of the hardware device. Referring to FIG. 12, the terminal 1200 in this embodiment includes:
收发器1201,处理器1202和总线1203;a transceiver 1201, a processor 1202 and a bus 1203;
该收发器1201与该处理器1202通过该总线1203相连;The transceiver 1201 is connected to the processor 1202 through the bus 1203;
总线1203可以是外设部件互连标准(peripheral component interconnect,简称PCI)总线或扩展工业标准结构(extended industry standard architecture,简称EISA)总线等。该总线可以分为地址总线、数据总线、控制总线等。为
便于表示,图12中仅用一条粗线表示,但并不表示仅有一根总线或一种类型的总线。The bus 1203 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus. The bus can be divided into an address bus, a data bus, a control bus, and the like. For
For ease of representation, only one thick line is shown in Figure 12, but it does not mean that there is only one bus or one type of bus.
处理器1202可以是中央处理器(central processing unit,简称CPU),网络处理器(network processor,简称NP)或者CPU和NP的组合。The processor 1202 may be a central processing unit (CPU), a network processor (NP) or a combination of a CPU and an NP.
处理器1202还可以进一步包括硬件芯片。上述硬件芯片可以是专用集成电路(application-specific integrated circuit,简称ASIC),可编程逻辑器件(programmable logic device,简称PLD)或其组合。上述PLD可以是复杂可编程逻辑器件(complex programmable logic device,简称CPLD),现场可编程逻辑门阵列(field-programmable gate array,简称FPGA),通用阵列逻辑(generic array logic,简称GAL)或其任意组合。The processor 1202 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD) or a combination thereof. The PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a general array logic (GAL) or any combination.
该处理器1202,具有如下功能:在宽带服务小区参与当前呼叫,该终端在该宽带服务小区及窄带服务小区均注册;The processor 1202 has the following functions: participating in a current call in a broadband serving cell, where the terminal is registered in both the broadband serving cell and the narrowband serving cell;
该收发器1201,具有如下功能:获取窄带目标小区中的当前呼叫的业务信道的信息;The transceiver 1201 has the function of: acquiring information of a traffic channel of a current call in a narrowband target cell;
该处理器1202,具有如下功能:根据该获取模块获取的该业务信道的信息从该宽带服务小区切换至该窄带目标小区继续该当前呼叫。另外,本实施例中的终端1200还可以包括存储器1204,该存储器1204可以包括易失性存储器(volatile memory),例如随机存取存储器(random-access memory,简称RAM);存储器也可以包括非易失性存储器(non-volatile memory),例如快闪存储器(flash memory),硬盘(hard disk drive,简称HDD)或固态硬盘(solid-state drive,简称SSD);存储器1204还可以包括上述种类的存储器的组合。存储器1204用于存储软件程序及缓存数据,收发器1201以及存储器1204通过总线1203与处理器1202通信连接。The processor 1202 has a function of: switching from the broadband serving cell to the narrowband target cell to continue the current call according to the information of the traffic channel acquired by the acquiring module. In addition, the terminal 1200 in this embodiment may further include a memory 1204, which may include a volatile memory, such as a random-access memory (RAM); the memory may also include a non-easy memory. Non-volatile memory, such as a flash memory, a hard disk drive (HDD) or a solid-state drive (SSD); the memory 1204 may also include the above-described types of memory. The combination. The memory 1204 is used to store software programs and cache data, and the transceiver 1201 and the memory 1204 are communicatively coupled to the processor 1202 via a bus 1203.
具体实现中,收发器1201可以有两套,一套用于从宽带集群基站获取业务信道的信息,一套用于从窄带集群基站获取业务信道的信息。In a specific implementation, the transceiver 1201 may have two sets, one set for obtaining information of a traffic channel from a broadband cluster base station, and one set for obtaining information of a traffic channel from a narrowband cluster base station.
本实施例的终端1200还可以执行前述方法实施例的其他步骤,此处不再赘述。The terminal 1200 of this embodiment may further perform other steps of the foregoing method embodiments, and details are not described herein again.
下面介绍本发明实施例提供的核心网,请参阅图13,本实施例的核心网设备1300包括:
The following describes the core network provided by the embodiment of the present invention. Referring to FIG. 13, the core network device 1300 of this embodiment includes:
分配模块1301,用于接收终端的请求为当前呼叫在窄带目标小区分配业务信道,该终端在宽带服务小区参与该当前呼叫,该终端在该宽带服务小区及窄带服务小区均注册;The allocating module 1301 is configured to receive, by the terminal, a service channel for the current call in the narrowband target cell, where the terminal participates in the current call in the broadband serving cell, where the terminal is registered in the broadband serving cell and the narrowband serving cell;
发送模块1302,用于将该业务信道的信息发送给该终端,以使得该终端根据该业务信道的信息从该宽带服务小区切换至该窄带目标小区继续该当前呼叫。The sending module 1302 is configured to send information about the traffic channel to the terminal, so that the terminal switches from the broadband serving cell to the narrowband target cell to continue the current call according to the information of the traffic channel.
可选的,核心网设备为该宽带服务小区归属的宽带核心网时,该分配模块1301包括:Optionally, when the core network device is a broadband core network to which the broadband serving cell belongs, the allocating module 1301 includes:
第一接收单元,用于该终端通过宽带集群基站发送的小区切换请求,该小区切换请求包括该小区切换请求中包括该当前呼叫的呼叫标识及该窄带目标小区的无线位置识别号LAI;The first receiving unit is configured to send, by the terminal, a cell handover request sent by the broadband cluster base station, where the cell handover request includes the call identifier of the current call and the wireless location identification number LAI of the narrowband target cell in the cell handover request;
识别单元,用于根据该LAI识别该窄带目标小区归属的窄带核心网;An identifying unit, configured to identify, according to the LAI, a narrowband core network to which the narrowband target cell belongs;
第一发送单元,用于向该窄带核心网发送小区切换准备请求,该小区切换准备请求包含该呼叫标识,以使得该窄带核心网根据该呼叫标识为该当前呼叫分配业务信道;a first sending unit, configured to send a cell handover preparation request to the narrowband core network, where the cell handover preparation request includes the call identifier, so that the narrowband core network allocates a traffic channel for the current call according to the call identifier;
第一获取单元,用于通过网关从该窄带核心网获取该业务信道的信息;a first acquiring unit, configured to obtain, by using a gateway, information about the traffic channel from the narrowband core network;
该发送模块1302包括:The sending module 1302 includes:
第二发送单元,用于将该业务信道的信息发送给该终端;a second sending unit, configured to send information of the traffic channel to the terminal;
和/或,and / or,
将该业务信道的信息发送给该窄带服务小区归属的窄带核心网,以使得该窄带服务小区对应的窄带集群基站向该终端发送该业务信道的信息。Transmitting the information of the traffic channel to the narrowband core network to which the narrowband serving cell belongs, so that the narrowband cluster base station corresponding to the narrowband serving cell sends the information of the traffic channel to the terminal.
可选的,核心网设备为统一融合核心网时,该分配模块1301包括:第二接收单元,用于接收该终端发送的小区切换请求,该小区切换请求包括该当前呼叫的呼叫标识和该窄带目标小区的无线位置识别号LAI;Optionally, when the core network device is a unified fused core network, the allocating module 1301 includes: a second receiving unit, configured to receive a cell handover request sent by the terminal, where the cell handover request includes a call identifier of the current call, and the narrowband The wireless location identification number LAI of the target cell;
处理单元,用于根据该呼叫标识为该当前呼叫在该窄带目标小区分配业务信道;a processing unit, configured to allocate a traffic channel to the narrowband target cell according to the call identifier for the current call;
该发送模块1302包括:The sending module 1302 includes:
第三发送单元,用于将该业务信道的信息发送给该窄带服务小区归属的窄带核心网,以使得该窄带服务小区对应的窄带集群基站向该终端发送该业务信
道的信息。a third sending unit, configured to send the information of the traffic channel to the narrowband core network to which the narrowband serving cell belongs, so that the narrowband cluster base station corresponding to the narrowband serving cell sends the service letter to the terminal
Road information.
可选的,核心网设备为该窄带目标小区归属的窄带核心网时,该分配模块1301包括:Optionally, when the core network device is a narrowband core network to which the narrowband target cell belongs, the allocating module 1301 includes:
第三接收单元,用于当该终端判断该当前呼叫为组呼且组归属窄带核心网时,接收该终端发送的呼叫建立请求,该呼叫建立请求包括该组呼的呼叫标识;a third receiving unit, configured to: when the terminal determines that the current call is a group call and the group belongs to the narrowband core network, receive a call setup request sent by the terminal, where the call setup request includes a call identifier of the group call;
第四发送单元,用于向该组归属窄带核心网发送该呼叫建立请求,以使得该组归属窄带核心网根据该呼叫标识通过将该终端并入该组呼为该当前呼叫在该窄带目标小区分配业务信道;a fourth sending unit, configured to send the call setup request to the group of home narrowband core networks, so that the group of home narrowband core networks according to the call identity by incorporating the terminal into the group call is the current call in the narrowband target cell Allocating traffic channels;
第四接收单元,用于接收该组归属窄带核心网反馈的该业务信道的信息;a fourth receiving unit, configured to receive information about the traffic channel fed back by the group of the narrowband core network;
该发送模块1302包括:The sending module 1302 includes:
第五发送单元,用于将该业务信道的信息发送给该终端。And a fifth sending unit, configured to send information of the traffic channel to the terminal.
可选的,核心网设备为该窄带目标小区归属的窄带核心网时,该分配模块1301包括:Optionally, when the core network device is a narrowband core network to which the narrowband target cell belongs, the allocating module 1301 includes:
第五接收单元,用于当该终端判断该当前呼叫为组呼且组归属宽带核心网时,接收该终端发送的呼叫建立请求,该呼叫建立请求包括该组呼的呼叫标识;a fifth receiving unit, configured to: when the terminal determines that the current call is a group call and the group belongs to the broadband core network, receive a call setup request sent by the terminal, where the call setup request includes a call identifier of the group call;
第六发送单元,用于向该组归属宽带核心网发送该呼叫建立请求,以使得该组归属宽带核心网根据该呼叫标识通过将该终端并入该组呼为该当前呼叫在该窄带目标小区分配业务信道;第六接收单元,用于接收该组归属宽带核心网反馈的该业务信道的信息;a sixth sending unit, configured to send the call setup request to the group of home broadband network, so that the group of home broadband core networks according to the call identity by incorporating the terminal into the group call is the current call in the narrowband target cell Allocating a traffic channel; a sixth receiving unit, configured to receive information about the traffic channel fed back by the group of home broadband core networks;
该发送模块1302包括:The sending module 1302 includes:
第七发送单元,用于将该业务信道的信息发送给该终端。And a seventh sending unit, configured to send information of the traffic channel to the terminal.
可选的,核心网设备为该统一融合核心网时,该分配模块包括:Optionally, when the core network device is the unified and integrated core network, the allocation module includes:
第七接收单元,用于接收该终端发送的呼叫建立请求,该呼叫建立请求包括该组呼的呼叫标识;a seventh receiving unit, configured to receive a call setup request sent by the terminal, where the call setup request includes a call identifier of the group call;
分配单元,用于根据该组呼的呼叫标识通过将该终端并入该组呼为该当前呼叫在该窄带目标小区分配业务信道;该发送模块包括:An allocating unit, configured to allocate a traffic channel to the narrowband target cell for the current call by combining the terminal into the group call according to the call identity of the group call; the sending module includes:
第八发送单元,用于将该业务信道的信息发送给该终端。And an eighth sending unit, configured to send information of the traffic channel to the terminal.
以下从硬件装置的角度,对上述实施例的核心网设备进行描述,请参阅图14,本实施例的核心网设备1400包括:
The following describes the core network device of the foregoing embodiment from the perspective of a hardware device. Referring to FIG. 14, the core network device 1400 of this embodiment includes:
收发器1401,处理器1402和总线1403; Transceiver 1401, processor 1402 and bus 1403;
该收发器1401与该处理器1402通过该总线1403相连;The transceiver 1401 is connected to the processor 1402 via the bus 1403;
总线1403可以是外设部件互连标准(peripheral component interconnect,简称PCI)总线或扩展工业标准结构(extended industry standard architecture,简称EISA)总线等。该总线可以分为地址总线、数据总线、控制总线等。为便于表示,图14中仅用一条粗线表示,但并不表示仅有一根总线或一种类型的总线。The bus 1403 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 14, but it does not mean that there is only one bus or one type of bus.
处理器1402可以是中央处理器(central processing unit,简称CPU),网络处理器(network processor,简称NP)或者CPU和NP的组合。The processor 1402 may be a central processing unit (CPU), a network processor (NP) or a combination of a CPU and an NP.
处理器1402还可以进一步包括硬件芯片。上述硬件芯片可以是专用集成电路(application-specific integrated circuit,简称ASIC),可编程逻辑器件(programmable logic device,简称PLD)或其组合。上述PLD可以是复杂可编程逻辑器件(complex programmable logic device,简称CPLD),现场可编程逻辑门阵列(field-programmable gate array,简称FPGA),通用阵列逻辑(generic array logic,简称GAL)或其任意组合。The processor 1402 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD) or a combination thereof. The PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a general array logic (GAL) or any combination.
该处理器1402,具有如下功能:接收终端的请求为当前呼叫在窄带目标小区分配业务信道,该终端在宽带服务小区参与该当前呼叫,该终端在该宽带服务小区及窄带服务小区均注册;The processor 1402 has the following functions: the request of the receiving terminal allocates a traffic channel to the narrowband target cell for the current call, and the terminal participates in the current call in the broadband serving cell, and the terminal registers in both the broadband serving cell and the narrowband serving cell;
该收发器1401,具有如下功能:将该处理模块获取到的该业务信道信息发送给该终端,以使得该终端根据该业务信道的信息从该宽带服务小区切换至该窄带目标小区继续该当前呼叫。The transceiver 1401 has a function of: transmitting the traffic channel information acquired by the processing module to the terminal, so that the terminal switches from the broadband serving cell to the narrowband target cell according to the information of the traffic channel to continue the current call. .
另外,本实施例中的核心网1400还可以包括存储器1404,该存储器1404可以包括易失性存储器(volatile memory),例如随机存取存储器(random-access memory,简称RAM);存储器也可以包括非易失性存储器(non-volatile memory),例如快闪存储器(flash memory),硬盘(hard disk drive,简称HDD)或固态硬盘(solid-state drive,简称SSD);存储器1404还可以包括上述种类的存储器的组合。存储器1404用于存储软件程序及缓存数据,收发器1401以及存储器1404通过总线1403与处理器1402通信连接。In addition, the core network 1400 in this embodiment may further include a memory 1404, which may include a volatile memory, such as a random-access memory (RAM); the memory may also include a non-volatile memory. Non-volatile memory, such as a flash memory, a hard disk drive (HDD) or a solid-state drive (SSD); the memory 1404 may also include the above-mentioned types. A combination of memories. The memory 1404 is used to store software programs and cache data, and the transceiver 1401 and the memory 1404 are communicatively coupled to the processor 1402 via a bus 1403.
本实施例的核心网设备1400还可以执行前述方法实施例的其他步骤,此
处不再赘述。The core network device 1400 of this embodiment may also perform other steps of the foregoing method embodiments,
I won't go into details here.
另外需说明的是,以上所描述的装置实施例仅仅是示意性的,其中该作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。另外,本发明提供的装置实施例附图中,模块之间的连接关系表示它们之间具有通信连接,具体可以实现为一条或多条通信总线或信号线。本领域普通技术人员在不付出创造性劳动的情况下,即可以理解并实施。In addition, it should be noted that the device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as the cells may or may not be physical. Units can be located in one place or distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment. In addition, in the drawings of the device embodiments provided by the present invention, the connection relationship between the modules indicates that there is a communication connection between them, and specifically, one or more communication buses or signal lines can be realized. Those of ordinary skill in the art can understand and implement without any creative effort.
通过以上的实施方式的描述,所属领域的技术人员可以清楚地了解到本发明可借助硬件,例如模拟电路、数字电路或专用电路,的方式来实现。但是,对本发明而言更多情况下软件程序实现是更佳的实施方式。基于这样的理解,本发明的技术方案可以以软件产品的形式实现,该计算机软件产品存储在可读取的存储介质中,如计算机的软盘,快闪存储器(英文:flash memory)、硬盘、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)或者光盘等,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本发明各个实施例该的方法。From the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of hardware, such as analog circuits, digital circuits or dedicated circuits. However, for the purposes of the present invention, software program implementation is a better implementation in more cases. Based on such understanding, the technical solution of the present invention can be implemented in the form of a software product stored in a readable storage medium, such as a computer floppy disk, a flash memory (English: flash memory), a hard disk, only Read-Only Memory (ROM), Random Access Memory (RAM), or optical disk, etc., including instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to execute The method of various embodiments of the present invention.
以上所述,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到的变化或替换,都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应该以权利要求的保护范围为准。
The above is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or within the technical scope disclosed by the present invention. Alternatives are intended to be covered by the scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.
Claims (31)
- 一种小区切换方法,其特征在于,包括:A cell switching method, comprising:终端在宽带服务小区参与当前呼叫,所述终端在所述宽带服务小区及窄带服务小区均注册;The terminal participates in the current call in the broadband serving cell, and the terminal is registered in both the broadband serving cell and the narrowband serving cell;所述终端获取窄带目标小区中的当前呼叫的业务信道的信息;Obtaining, by the terminal, information about a service channel of a current call in a narrowband target cell;所述终端根据所述业务信道的信息从所述宽带服务小区切换至所述窄带目标小区继续所述当前呼叫。The terminal switches from the broadband serving cell to the narrowband target cell to continue the current call according to the information of the traffic channel.
- 根据权利要求1所述的方法,其特征在于,所述终端获取所述窄带目标小区中的当前呼叫的业务信道的信息包括:The method according to claim 1, wherein the acquiring, by the terminal, the information of the traffic channel of the current call in the narrowband target cell comprises:所述终端请求核心网设备为所述当前呼叫在所述窄带目标小区分配业务信道;The terminal requests the core network device to allocate a traffic channel to the narrowband target cell for the current call;所述终端获取所述业务信道的信息。The terminal acquires information of the traffic channel.
- 根据权利要求2所述的方法,其特征在于,所述终端请求核心网设备为所述当前呼叫在所述窄带目标小区分配业务信道之前,终端在宽带服务小区参与当前呼叫之后,所述方法还包括:The method according to claim 2, wherein the terminal requests the core network device to allocate a traffic channel to the narrowband target cell for the current call, and after the terminal participates in the current call in the broadband serving cell, the method further include:所述终端接收所述窄带服务小区归属的窄带核心网发送的广播信息,所述广播信息包括所述窄带目标小区的业务信道的信息;Receiving, by the terminal, broadcast information sent by a narrowband core network to which the narrowband serving cell belongs, where the broadcast information includes information of a traffic channel of the narrowband target cell;所述终端根据所述广播信息获取业务信道列表;The terminal acquires a traffic channel list according to the broadcast information;所述终端判断所述业务信道列表中是否存在所述当前呼叫的业务信道的信息;Determining, by the terminal, information about a service channel of the current call in the service channel list;若所述业务信道列表中不存在所述当前呼叫的业务信道的信息,则触发所述终端请求核心网设备为所述当前呼叫在所述窄带目标小区分配业务信道。If the information of the traffic channel of the current call does not exist in the traffic channel list, triggering, by the terminal, the core network device to allocate a traffic channel to the narrowband target cell for the current call.
- 根据权利要求2或3所述的方法,其特征在于,所述终端请求核心网设备为所述当前呼叫在所述窄带目标小区分配业务信道包括:The method according to claim 2 or 3, wherein the requesting the core network device to allocate a traffic channel to the narrowband target cell for the current call comprises:所述终端通过宽带集群基站向宽带核心网发送小区切换请求,所述小区切换请求中包括所述当前呼叫的呼叫标识及所述窄带目标小区的无线位置识别号LAI,以使得所述宽带核心网根据所述窄带目标小区的LAI识别所述窄带目标小区归属的窄带核心网,并获取所述窄带目标小区中所述当前呼叫的业务信道的信息; The terminal sends a cell handover request to the broadband core network by using the broadband cluster base station, where the cell handover request includes the call identifier of the current call and the wireless location identification number LAI of the narrowband target cell, so that the broadband core network Identifying, by the LAI of the narrowband target cell, a narrowband core network to which the narrowband target cell belongs, and acquiring information of a traffic channel of the current call in the narrowband target cell;所述终端获取所述业务信道的信息包括:The acquiring, by the terminal, the information about the service channel includes:所述终端通过所述宽带集群基站从所述宽带核心网获取所述当前呼叫的业务信道的信息;和/或,Obtaining, by the broadband cluster base station, information about a service channel of the current call from the broadband core network; and/or,所述终端从所述窄带服务小区对应的窄带集群基站获取所述当前呼叫的业务信道的信息,所述当前呼叫的业务信道的信息由所述宽带核心网发送给所述窄带集群基站。And obtaining, by the terminal, the information of the traffic channel of the current call from the narrowband cluster base station corresponding to the narrowband serving cell, where the information of the traffic channel of the current call is sent by the broadband core network to the narrowband cluster base station.
- 根据权利要求2或3所述的方法,其特征在于,所述终端请求核心网设备为所述当前呼叫在所述窄带目标小区分配业务信道包括:The method according to claim 2 or 3, wherein the requesting the core network device to allocate a traffic channel to the narrowband target cell for the current call comprises:所述终端判断所述当前呼叫是否为组呼且组归属宽带核心网;Determining, by the terminal, whether the current call is a group call and the group belongs to a broadband core network;若所述当前呼叫为组呼且组归属宽带核心网,则所述终端通过所述窄带目标小区对应的窄带集群基站向所述窄带目标小区归属的窄带核心网发送呼叫建立请求,所述呼叫建立请求包括所述组呼的组标识,以使得所述窄带目标小区归属的窄带核心网向所述组归属宽带核心网发送所述呼叫建立请求,并获取所述窄带目标小区中所述当前呼叫的业务信道的信息;If the current call is a group call and the group belongs to the broadband core network, the terminal sends a call setup request to the narrowband core network to which the narrowband target cell belongs by using the narrowband cluster base station corresponding to the narrowband target cell, where the call setup is performed. Requesting, by the group identifier of the group call, the narrowband core network to which the narrowband target cell belongs to send the call setup request to the group home broadband core network, and acquiring the current call in the narrowband target cell Information of the traffic channel;所述终端获取所述业务信道的信息包括:The acquiring, by the terminal, the information about the service channel includes:所述终端从所述窄带目标小区对应的窄带集群基站获取所述当前呼叫的业务信道的信息。The terminal acquires information about a service channel of the current call from a narrowband cluster base station corresponding to the narrowband target cell.
- 根据权利要求2或3所述的方法,其特征在于,所述终端请求核心网设备为所述当前呼叫在所述窄带目标小区分配业务信道包括:The method according to claim 2 or 3, wherein the requesting the core network device to allocate a traffic channel to the narrowband target cell for the current call comprises:所述终端判断所述当前呼叫是否为组呼且组归属窄带核心网;Determining, by the terminal, whether the current call is a group call and the group belongs to a narrowband core network;若所述当前呼叫为组呼且组归属窄带核心网,则所述终端通过所述窄带目标小区对应的窄带集群基站向所述窄带目标小区归属的窄带核心网发送呼叫建立请求,所述呼叫建立请求中包括所述组呼的组标识,以使得所述窄带目标小区归属的窄带核心网向所述组归属窄带核心网发送所述呼叫建立请求,并获取所述窄带目标小区中所述当前呼叫的业务信道的信息;If the current call is a group call and the group belongs to the narrowband core network, the terminal sends a call setup request to the narrowband core network to which the narrowband target cell belongs by using the narrowband cluster base station corresponding to the narrowband target cell, where the call is established. The request includes the group identifier of the group call, so that the narrowband core network to which the narrowband target cell belongs sends the call setup request to the group home narrowband core network, and acquires the current call in the narrowband target cell. Information of the traffic channel;所述终端获取所述业务信道的信息包括:The acquiring, by the terminal, the information about the service channel includes:所述终端从所述窄带目标小区对应的窄带集群基站获取所述当前呼叫的业务信道的信息。The terminal acquires information about a service channel of the current call from a narrowband cluster base station corresponding to the narrowband target cell.
- 根据权利要求2或3所述的方法,其特征在于,所述终端请求核心网 设备为所述当前呼叫在所述窄带目标小区分配业务信道包括:The method according to claim 2 or 3, wherein the terminal requests a core network The device assigning a traffic channel to the narrowband target cell for the current call includes:所述终端通过宽带集群基站向统一融合核心网发送小区切换请求,所述小区切换请求中包括所述当前呼叫的呼叫标识及所述窄带目标小区的无线位置识别号LAI,以使得所述统一融合核心网根据所述窄带目标小区的LAI和所述呼叫标识为所述当前呼叫在所述窄带目标小区分配业务信道;The terminal sends a cell handover request to the unified converged core network by using the broadband cluster base station, where the cell handover request includes the call identifier of the current call and the radio location identification number LAI of the narrowband target cell, so that the unified convergence The core network allocates a traffic channel to the narrowband target cell according to the LAI of the narrowband target cell and the call identifier for the current call;所述终端获取所述业务信道的信息包括:The acquiring, by the terminal, the information about the service channel includes:所述终端从所述宽带集群基站获取所述业务信道的信息,所述业务信道的信息由所述统一融合核心网发送给所述宽带集群基站;The terminal acquires information of the traffic channel from the broadband cluster base station, and the information of the traffic channel is sent by the unified converged core network to the broadband cluster base station;和/或,and / or,所述终端从所述窄带服务小区对应的窄带集群基站获取所述业务信道的信息,所述业务信道的信息由所述统一融合核心网发送给所述窄带集群基站。The terminal acquires information of the traffic channel from a narrowband cluster base station corresponding to the narrowband serving cell, and the information of the traffic channel is sent by the unified converged core network to the narrowband cluster base station.
- 根据权利要求2或3所述的方法,其特征在于,所述终端请求核心网设备为所述当前呼叫在所述窄带目标小区分配业务信道包括:The method according to claim 2 or 3, wherein the requesting the core network device to allocate a traffic channel to the narrowband target cell for the current call comprises:所述终端判断所述当前呼叫是否为组呼;Determining, by the terminal, whether the current call is a group call;若所述当前呼叫为组呼,则所述终端通过所述窄带目标小区对应的窄带集群基站向所述统一融合核心网发送呼叫建立请求,所述呼叫建立请求包括所述组呼的组标识,以使得所述统一融合核心网根据所述组标识通过将所述终端并入所述组呼为所述当前呼叫在所述窄带目标小区中分配业务信道;If the current call is a group call, the terminal sends a call setup request to the unified and fused core network by using the narrowband cluster base station corresponding to the narrowband target cell, where the call setup request includes the group identifier of the group call. So that the unified converged core network allocates a traffic channel in the narrowband target cell for the current call by incorporating the terminal into the group call according to the group identity;所述终端获取所述业务信道的信息包括:The acquiring, by the terminal, the information about the service channel includes:所述终端从所述窄带目标小区对应的窄带集群基站获取所述当前呼叫的业务信道的信息,所述业务信道信息由所述统一融合核心网发送给所述窄带集群基站。And acquiring, by the terminal, the information of the traffic channel of the current call from the narrowband cluster base station corresponding to the narrowband target cell, where the traffic channel information is sent by the unified convergence core network to the narrowband cluster base station.
- 根据权利要求1所述的方法,其特征在于,所述终端获取所述窄带目标小区中的当前呼叫的业务信道的信息包括:The method according to claim 1, wherein the acquiring, by the terminal, the information of the traffic channel of the current call in the narrowband target cell comprises:所述终端接收所述窄带服务小区归属的窄带核心网发送的广播信息,所述广播信息包括所述窄带目标小区的业务信道的信息;Receiving, by the terminal, broadcast information sent by a narrowband core network to which the narrowband serving cell belongs, where the broadcast information includes information of a traffic channel of the narrowband target cell;所述终端根据所述广播信息获取业务信道列表;The terminal acquires a traffic channel list according to the broadcast information;所述终端判断所述业务信道列表中是否存在所述当前呼叫的业务信道的信息; Determining, by the terminal, information about a service channel of the current call in the service channel list;若所述业务信道列表中存在所述当前呼叫的业务信道的信息,则所述终端从所述窄带服务小区对应的窄带集群基站获取所述窄带目标小区中所述当前呼叫的业务信道的信息。And if the information of the traffic channel of the current call exists in the service channel list, the terminal acquires information about a service channel of the current call in the narrowband target cell from a narrowband cluster base station corresponding to the narrowband serving cell.
- 一种终端,其特征在于,包括:A terminal, comprising:呼叫模块,用于在宽带服务小区参与当前呼叫,所述终端在所述宽带服务小区及窄带服务小区均注册;a calling module, configured to participate in a current call in a broadband serving cell, where the terminal is registered in both the broadband serving cell and the narrowband serving cell;获取模块,用于获取窄带目标小区中的当前呼叫的业务信道的信息;An acquiring module, configured to acquire information about a service channel of a current call in a narrowband target cell;处理模块,用于根据所述获取模块获取的所述业务信道的信息从所述宽带服务小区切换至所述窄带目标小区继续所述当前呼叫。And a processing module, configured to switch from the broadband serving cell to the narrowband target cell to continue the current call according to the information of the traffic channel acquired by the acquiring module.
- 根据权利要求10所述的终端,其特征在于,所述获取模块包括:The terminal according to claim 10, wherein the obtaining module comprises:请求单元,用于请求核心网设备为所述当前呼叫在所述窄带目标小区分配业务信道;a requesting unit, configured to request the core network device to allocate a traffic channel to the narrowband target cell for the current call;第一获取单元,用于获取所述业务信道的信息。The first acquiring unit is configured to acquire information about the traffic channel.
- 根据权利要求11所述的终端,其特征在于,所述获取模块还包括:The terminal according to claim 11, wherein the obtaining module further comprises:第一接收单元,用于接收所述窄带服务小区归属的窄带核心网发送的广播信息,所述广播信息包括所述窄带目标小区的业务信道的信息;a first receiving unit, configured to receive broadcast information sent by a narrowband core network to which the narrowband serving cell belongs, where the broadcast information includes information of a traffic channel of the narrowband target cell;第二获取单元,用于根据所述接收单元接收到的所述广播信息获取业务信道列表;a second acquiring unit, configured to acquire a traffic channel list according to the broadcast information received by the receiving unit;第一判断单元,用于判断所述业务信道列表中是否存在所述当前呼叫的业务信道的信息;a first determining unit, configured to determine whether the information of the service channel of the current call exists in the service channel list;触发单元,用于若所述业务信道列表中不存在所述当前呼叫的业务信道的信息,则触发请求核心网为所述当前呼叫在所述窄带目标小区分配业务信道。And a triggering unit, configured to: if the information of the traffic channel of the current call does not exist in the traffic channel list, trigger the requesting core network to allocate a traffic channel to the narrowband target cell for the current call.
- 根据权利要求11或12所述的终端,其特征在于,所述请求单元包括:The terminal according to claim 11 or 12, wherein the request unit comprises:第一处理子单元,用于通过宽带集群基站向宽带核心网发送小区切换请求,所述小区切换请求中包括所述当前呼叫的呼叫标识及所述窄带目标小区的无线位置识别号LAI,以使得所述宽带核心网可以根据所述窄带目标小区的LAI识别所述窄带目标小区归属的窄带核心网,并获取所述窄带目标小区中所述当前呼叫的业务信道的信息;a first processing subunit, configured to send a cell handover request to the broadband core network by using the broadband cluster base station, where the cell handover request includes a call identifier of the current call and a radio location identification number LAI of the narrowband target cell, so that The broadband core network may identify the narrowband core network to which the narrowband target cell belongs according to the LAI of the narrowband target cell, and acquire information about the current channel of the current call in the narrowband target cell;所述第一获取单元包括: The first obtaining unit includes:第一获取子单元,用于通过所述宽带集群基站从所述宽带核心网获取所述当前呼叫的业务信道的信息;a first acquiring subunit, configured to acquire information about a service channel of the current call from the broadband core network by using the broadband cluster base station;和/或,and / or,从所述窄带服务小区对应的窄带集群基站获取所述当前呼叫的业务信道的信息,所述当前呼叫的业务信道的信息由所述宽带核心发送给所述窄带集群基站。Acquiring information of the traffic channel of the current call from the narrowband cluster base station corresponding to the narrowband serving cell, where information of the traffic channel of the current call is sent by the broadband core to the narrowband cluster base station.
- 根据权利要求11或12所述的终端,其特征在于,所述请求单元包括:The terminal according to claim 11 or 12, wherein the request unit comprises:第二处理子单元,用于判断所述当前呼叫是否为组呼且组归属宽带核心网;a second processing sub-unit, configured to determine whether the current call is a group call and the group belongs to a broadband core network;第一发送子单元,用于若所述当前呼叫为组呼且组归属宽带核心网,则通过所述窄带目标小区对应的窄带集群基站向所述窄带目标小区归属的窄带核心网发送呼叫建立请求,所述呼叫建立请求中包括所述组呼的组标识,以使得所述窄带目标小区归属的窄带核心网向所述组归属宽带核心网发送所述呼叫建立请求,并获取所述窄带目标小区中所述当前呼叫的业务信道的信息;a first sending subunit, configured to send, by the narrowband cluster base station corresponding to the narrowband target cell, a call setup request to a narrowband core network to which the narrowband target cell belongs if the current call is a group call and the group belongs to the broadband core network. The call setup request includes the group identifier of the group call, so that the narrowband core network to which the narrowband target cell belongs sends the call setup request to the group home broadband core network, and acquires the narrowband target cell. Information of the traffic channel of the current call;所述第一获取单元包括:The first obtaining unit includes:第二获取子单元,用于从所述窄带目标小区对应的窄带集群基站获取所述当前呼叫的业务信道的信息。And a second acquiring subunit, configured to acquire information about a traffic channel of the current call from a narrowband cluster base station corresponding to the narrowband target cell.
- 根据权利要求11或12所述的终端,其特征在于,所述请求单元包括:The terminal according to claim 11 or 12, wherein the request unit comprises:第三处理子单元,用于判断所述当前呼叫是否为组呼且组归属窄带核心网;a third processing sub-unit, configured to determine whether the current call is a group call and the group belongs to a narrowband core network;第二发送子单元,用于若所述当前呼叫为组呼且组归属窄带核心网,则通过所述窄带目标小区对应的窄带集群基站向所述窄带目标小区归属的窄带核心网发送呼叫建立请求,所述呼叫建立请求中包括所述组呼的组标识,以使得所述窄带目标小区归属的窄带核心网根据所述组标识将所述终端并入所述组呼,并获取所述窄带目标小区中所述当前呼叫的业务信道的信息;a second sending subunit, configured to send a call setup request to the narrowband core network to which the narrowband target cell belongs by using the narrowband cluster base station corresponding to the narrowband target cell if the current call is a group call and the group belongs to the narrowband core network. And the call setup request includes the group identifier of the group call, so that the narrowband core network to which the narrowband target cell belongs is merged into the group call according to the group identifier, and the narrowband target is acquired. Information of the traffic channel of the current call in the cell;所述第一获取单元包括:The first obtaining unit includes:第三获取子单元,用于从所述窄带目标小区对应的窄带集群基站获取所述当前呼叫的业务信道的信息。And a third acquiring subunit, configured to acquire information about the service channel of the current call from the narrowband cluster base station corresponding to the narrowband target cell.
- 根据权利要求11或12所述的终端,其特征在于,所述请求单元包括: The terminal according to claim 11 or 12, wherein the request unit comprises:第四处理子单元,用于通过宽带集群基站向所述统一融合核心网发送小区切换请求,所述小区切换请求中包括所述当前呼叫的呼叫标识及所述窄带目标小区的无线位置识别号LAI,以使得所述统一融合核心网根据所述窄带目标小区的LAI和所述呼叫标识为所述当前呼叫在所述窄带目标小区分配业务信道;a fourth processing subunit, configured to send a cell handover request to the unified converged core network by using a broadband cluster base station, where the cell handover request includes a call identifier of the current call and a radio location identification number LAI of the narrowband target cell So that the unified converged core network allocates a traffic channel to the narrowband target cell according to the LAI of the narrowband target cell and the call identifier for the current call;所述第一获取单元包括:The first obtaining unit includes:第四获取子单元,用于从所述宽带集群基站获取所述业务信道的信息,所述业务信道的信息由所述统一融合核心网发送给所述宽带集群基站;a fourth acquiring subunit, configured to acquire information of the traffic channel from the broadband cluster base station, where the information of the traffic channel is sent by the unified converged core network to the broadband cluster base station;和/或,and / or,从窄带服务小区对应的窄带集群基站获取所述业务信道的信息,所述业务信道的信息由所述统一融合核心网发送给所述窄带集群基站。Acquiring information of the traffic channel from a narrowband cluster base station corresponding to the narrowband serving cell, where the information of the traffic channel is sent by the unified converged core network to the narrowband cluster base station.
- 根据权利要求11或12所述的终端,其特征在于,所述请求单元包括:The terminal according to claim 11 or 12, wherein the request unit comprises:第五处理子单元,用于判断所述当前呼叫是否为组呼;a fifth processing subunit, configured to determine whether the current call is a group call;第三发送子单元,用于若所述当前呼叫为组呼,则通过所述窄带目标小区对应的窄带集群基站向所述统一融合核心网发送呼叫建立请求,所述呼叫建立请求包括所述组呼的组标识,以使得所述统一融合核心网根据所述组标识通过将所述终端并入所述组呼为所述当前呼叫在所述窄带目标小区中分配业务信道;a third sending subunit, configured to send, by the narrowband cluster base station corresponding to the narrowband target cell, a call setup request to the unified converged core network, where the current call is a group call, where the call setup request includes the group And the group identity of the call, such that the unified converged core network allocates a traffic channel in the narrowband target cell for the current call by incorporating the terminal into the group call according to the group identity;所述第一获取单元包括:The first obtaining unit includes:第五获取子单元,用于从所述窄带目标小区对应的窄带集群基站获取所述当前呼叫的业务信道的信息,所述当前呼叫的业务信道的信息由所述统一融合核心网发送给所述窄带集群基站。a fifth obtaining subunit, configured to acquire information of a traffic channel of the current call from a narrowband cluster base station corresponding to the narrowband target cell, where information of a traffic channel of the current call is sent by the unified converged core network Narrowband cluster base station.
- 一种小区切换方法,其特征在于,包括:A cell switching method, comprising:核心网设备接收终端的请求为当前呼叫在窄带目标小区分配业务信道,所述终端在宽带服务小区参与所述当前呼叫,所述终端在所述宽带服务小区及窄带服务小区均注册;The request of the core network device receiving terminal allocates a traffic channel to the narrowband target cell for the current call, the terminal participates in the current call in the broadband serving cell, and the terminal registers in both the broadband serving cell and the narrowband serving cell;所述核心网设备将所述业务信道的信息发送给所述终端,以使得所述终端根据所述业务信道的信息从所述宽带服务小区切换至所述窄带目标小区继续所述当前呼叫。The core network device sends information of the traffic channel to the terminal, so that the terminal switches from the broadband serving cell to the narrowband target cell to continue the current call according to information of the traffic channel.
- 根据权利要求18所述的方法,其特征在于,核心网设备为所述宽带 服务小区归属的宽带核心网时,核心网设备接收终端的请求为当前呼叫在窄带目标小区分配业务信道包括:The method of claim 18, wherein the core network device is the broadband When the serving cell belongs to the broadband core network, the request of the core network device to receive the terminal for the current call to allocate the traffic channel in the narrowband target cell includes:所述宽带核心网接收所述终端通过宽带集群基站发送的小区切换请求,所述小区切换请求包括所述当前呼叫的呼叫标识和窄带目标小区的无线位置识别号LAI;The broadband core network receives a cell handover request sent by the terminal through a broadband cluster base station, where the cell handover request includes a call identifier of the current call and a wireless location identification number LAI of the narrowband target cell;所述宽带核心网根据所述LAI识别所述窄带目标小区归属的窄带核心网;Identifying, by the broadband core network, a narrowband core network to which the narrowband target cell belongs according to the LAI;所述宽带核心网向所述窄带核心网发送小区切换准备请求,所述小区切换准备请求包含所述呼叫标识,以使得所述窄带核心网根据所述呼叫标识为所述当前呼叫分配业务信道;Transmitting, by the broadband core network, a cell handover preparation request to the narrowband core network, where the cell handover preparation request includes the call identifier, so that the narrowband core network allocates a traffic channel to the current call according to the call identifier;所述宽带核心网通过网关从所述窄带核心网获取所述业务信道的信息;The broadband core network obtains information of the traffic channel from the narrowband core network through a gateway;所述核心网设备将所述业务信道的信息发送给所述终端包括:The sending, by the core network device, the information about the service channel to the terminal includes:所述宽带核心网将所述业务信道的信息发送给所述终端;Transmitting, by the broadband core network, information of the traffic channel to the terminal;和/或,and / or,所述宽带核心网将所述业务信道的信息发送给所述窄带服务小区归属的窄带核心网,以使得所述窄带服务小区对应的窄带集群基站向所述终端发送所述业务信道的信息。The broadband core network sends the information of the traffic channel to the narrowband core network to which the narrowband serving cell belongs, so that the narrowband cluster base station corresponding to the narrowband serving cell sends the information of the traffic channel to the terminal.
- 根据权利要求18所述的方法,其特征在于,核心网设备为统一融合核心网时,核心网设备接收终端的请求为当前呼叫在窄带目标小区分配业务信道包括:The method according to claim 18, wherein when the core network device is a unified converged core network, the request of the core network device to receive the terminal for the current call to allocate the traffic channel in the narrowband target cell includes:统一融合核心网接收所述终端发送的小区切换请求,所述小区切换请求包括所述当前呼叫的呼叫标识和窄带目标小区的无线位置识别号LAI;Receiving, by the unified converged core network, a cell handover request sent by the terminal, where the cell handover request includes a call identifier of the current call and a radio location identification number LAI of the narrowband target cell;所述统一融合核心网根据所述呼叫标识为所述当前呼叫在所述窄带目标小区分配业务信道;The unified converged core network allocates a traffic channel to the narrowband target cell according to the call identifier for the current call;所述核心网设备将所述业务信道信息发送给所述终端包括:The sending, by the core network device, the service channel information to the terminal includes:所述统一融合核心网将所述业务信道的信息发送给所述窄带服务小区归属的窄带核心网,以使得所述窄带服务小区对应的窄带集群基站向所述终端发送所述业务信道的信息。The unified converged core network sends the information of the traffic channel to the narrowband core network to which the narrowband serving cell belongs, so that the narrowband cluster base station corresponding to the narrowband serving cell sends the information of the traffic channel to the terminal.
- 根据权利要求18所述的方法,其特征在于,核心网设备为所述窄带目标小区归属的窄带核心网时,核心网设备接收终端的请求为当前呼叫在窄带 目标小区分配业务信道包括:The method according to claim 18, wherein when the core network device is a narrowband core network to which the narrowband target cell belongs, the core network device receives the request of the terminal as the current call in the narrowband The target cell allocation traffic channel includes:当所述终端判断所述当前呼叫为组呼且组归属窄带核心网时,所述窄带目标小区归属的窄带核心网接收所述终端发送的呼叫建立请求,所述呼叫建立请求包括所述组呼的呼叫标识;When the terminal determines that the current call is a group call and the group belongs to a narrowband core network, the narrowband core network to which the narrowband target cell belongs receives a call setup request sent by the terminal, where the call setup request includes the group call Call identity所述窄带目标小区归属的窄带核心网向所述组归属窄带核心网发送所述呼叫建立请求,以使得所述组归属窄带核心网根据所述呼叫标识通过将所述终端并入所述组呼为所述当前呼叫在所述窄带目标小区分配业务信道;Transmitting, by the narrowband core network to which the narrowband target cell belongs, the call setup request to the group home narrowband core network, so that the group home narrowband core network merges the terminal into the group call according to the call identifier Allocating a traffic channel to the narrowband target cell for the current call;所述窄带目标小区归属的窄带核心网接收所述组归属窄带核心网反馈的所述业务信道的信息;Receiving, by the narrowband core network to which the narrowband target cell belongs, the information of the traffic channel fed back by the group to the narrowband core network;所述核心网设备将所述业务信道信息发送给所述终端包括:The sending, by the core network device, the service channel information to the terminal includes:所述窄带目标小区归属的窄带核心网将所述业务信道的信息发送给所述终端。The narrowband core network to which the narrowband target cell belongs sends the information of the traffic channel to the terminal.
- 根据权利要求18所述的方法,其特征在于,核心网设备为所述窄带目标小区归属的窄带核心网时,核心网设备接收终端的请求为当前呼叫在窄带目标小区分配业务信道包括:The method according to claim 18, wherein when the core network device is a narrowband core network to which the narrowband target cell belongs, the request of the core network device receiving the terminal to allocate a traffic channel to the narrowband target cell for the current call includes:当所述终端判断所述当前呼叫为组呼且组归属宽带核心网时,所述窄带目标小区归属的窄带核心网接收所述终端发送的呼叫建立请求,所述呼叫建立请求包括所述组呼的呼叫标识;When the terminal determines that the current call is a group call and the group belongs to the broadband core network, the narrowband core network to which the narrowband target cell belongs receives a call setup request sent by the terminal, where the call setup request includes the group call Call identity所述窄带目标小区归属的窄带核心网向所述组归属宽带核心网发送所述呼叫建立请求,以使得所述组归属宽带核心网根据所述呼叫标识通过将所述终端并入所述组呼为所述当前呼叫在所述窄带目标小区分配业务信道;Sending, by the narrowband core network to which the narrowband target cell belongs, the call setup request to the group home broadband core network, so that the group home broadband core network merges the terminal into the group call according to the call identifier Allocating a traffic channel to the narrowband target cell for the current call;所述窄带目标小区归属的窄带核心网接收所述组归属宽带核心网反馈的所述业务信道的信息;Receiving, by the narrowband core network to which the narrowband target cell belongs, information of the traffic channel fed back by the group home broadband core network;所述核心网设备将所述业务信道信息发送给所述终端包括:The sending, by the core network device, the service channel information to the terminal includes:所述窄带目标小区归属的窄带核心网将所述业务信道的信息发送给所述终端。The narrowband core network to which the narrowband target cell belongs sends the information of the traffic channel to the terminal.
- 根据权利要求18所述的方法,其特征在于,核心网设备为所述统一融合核心网时,核心网设备接收终端的请求为当前呼叫在窄带目标小区分配业务信道包括: The method according to claim 18, wherein when the core network device is the unified converged core network, the request of the core network device receiving the terminal to allocate the traffic channel to the narrowband target cell for the current call comprises:当所述终端判断所述当前呼叫为组呼时,所述统一融合核心网接收所述终端发送的呼叫建立请求,所述呼叫建立请求包括所述组呼的呼叫标识;When the terminal determines that the current call is a group call, the unified convergence core network receives a call setup request sent by the terminal, where the call setup request includes a call identifier of the group call;所述统一融合核心网根据所述组呼的呼叫标识通过将所述终端并入所述组呼为所述当前呼叫在所述窄带目标小区分配业务信道;The unified converged core network allocates a traffic channel in the narrowband target cell for the current call by combining the terminal into the group call according to the call identity of the group call;所述核心网设备将所述业务信道信息发送给所述终端包括:The sending, by the core network device, the service channel information to the terminal includes:所述统一融合核心网将所述业务信道的信息发送给所述终端。The unified converged core network sends information of the traffic channel to the terminal.
- 一种核心网设备,其特征在于,包括:A core network device, comprising:分配模块,用于接收终端的请求为当前呼叫在窄带目标小区分配业务信道,所述终端在宽带服务小区参与所述当前呼叫,所述终端在所述宽带服务小区及窄带服务小区均注册;An allocating module, configured to receive, by the terminal, a service channel for the current call in the narrowband target cell, where the terminal participates in the current call in the broadband serving cell, where the terminal is registered in the broadband serving cell and the narrowband serving cell;发送模块,用于将所述业务信道的信息发送给所述终端,以使得所述终端根据所述业务信道的信息从所述宽带服务小区切换至所述窄带目标小区继续所述当前呼叫。And a sending module, configured to send information about the traffic channel to the terminal, so that the terminal switches from the broadband serving cell to the narrowband target cell to continue the current call according to information of the traffic channel.
- 根据权利要求24所述的核心网,其特征在于,核心网设备为所述宽带服务小区归属的宽带核心网时,所述分配模块包括:The core network according to claim 24, wherein when the core network device is a broadband core network to which the broadband serving cell belongs, the allocation module includes:第一接收单元,用于所述终端通过宽带集群基站发送的小区切换请求,所述小区切换请求包括所述小区切换请求中包括所述当前呼叫的呼叫标识及所述窄带目标小区的无线位置识别号LAI;a first receiving unit, configured to send, by the terminal, a cell handover request sent by the broadband cluster base station, where the cell handover request includes a call identifier of the current call and a wireless location identifier of the narrowband target cell in the cell handover request No. LAI;识别单元,用于根据所述LAI识别所述窄带目标小区归属的窄带核心网;An identifying unit, configured to identify, according to the LAI, a narrowband core network to which the narrowband target cell belongs;第一发送单元,用于向所述窄带核心网发送小区切换准备请求,所述小区切换准备请求包含所述呼叫标识,以使得所述窄带核心网根据所述呼叫标识为所述当前呼叫分配业务信道;a first sending unit, configured to send a cell handover preparation request to the narrowband core network, where the cell handover preparation request includes the call identifier, so that the narrowband core network allocates a service to the current call according to the call identifier channel;第一获取单元,用于通过网关从所述窄带核心网获取所述业务信道的信息;a first acquiring unit, configured to acquire, by using a gateway, information about the traffic channel from the narrowband core network;所述发送模块包括:The sending module includes:第二发送单元,用于将所述业务信道的信息发送给所述终端;a second sending unit, configured to send information about the traffic channel to the terminal;和/或,and / or,将所述业务信道的信息发送给所述窄带服务小区归属的窄带核心网,以使得所述窄带服务小区对应的窄带集群基站向所述终端发送所述业务信道的信 息。Transmitting the information of the traffic channel to the narrowband core network to which the narrowband serving cell belongs, so that the narrowband cluster base station corresponding to the narrowband serving cell sends the service channel letter to the terminal interest.
- 根据权利要求24所述的核心网,其特征在于,核心网设备为统一融合核心网时,所述分配模块包括:The core network according to claim 24, wherein when the core network device is a unified core network, the allocation module includes:第二接收单元,用于接收所述终端发送的小区切换请求,所述小区切换请求包括所述当前呼叫的呼叫标识和所述窄带目标小区的无线位置识别号LAI;a second receiving unit, configured to receive a cell handover request sent by the terminal, where the cell handover request includes a call identifier of the current call and a wireless location identification number LAI of the narrowband target cell;处理单元,用于根据所述呼叫标识为所述当前呼叫在所述窄带目标小区分配业务信道;a processing unit, configured to allocate a traffic channel to the narrowband target cell according to the call identifier according to the current call;所述发送模块包括:The sending module includes:第三发送单元,用于将所述业务信道的信息发送给所述窄带服务小区归属的窄带核心网,以使得所述窄带服务小区对应的窄带集群基站向所述终端发送所述业务信道的信息。a third sending unit, configured to send the information of the traffic channel to the narrowband core network to which the narrowband serving cell belongs, so that the narrowband cluster base station corresponding to the narrowband serving cell sends the information of the traffic channel to the terminal .
- 根据权利要求24所述的核心网,其特征在于,核心网设备为所述窄带目标小区归属的窄带核心网时,所述分配模块包括:The core network according to claim 24, wherein when the core network device is a narrowband core network to which the narrowband target cell belongs, the allocation module includes:第三接收单元,用于当所述终端判断所述当前呼叫为组呼且组归属窄带核心网时,接收所述终端发送的呼叫建立请求,所述呼叫建立请求包括所述组呼的呼叫标识;a third receiving unit, configured to: when the terminal determines that the current call is a group call and the group belongs to a narrowband core network, receive a call setup request sent by the terminal, where the call setup request includes a call identifier of the group call ;第四发送单元,用于向所述组归属窄带核心网发送所述呼叫建立请求,以使得所述组归属窄带核心网根据所述呼叫标识通过将所述终端并入所述组呼为所述当前呼叫在所述窄带目标小区分配业务信道;a fourth sending unit, configured to send the call setup request to the group-owned narrowband core network, so that the group-owned narrowband core network according to the call identifier is configured by incorporating the terminal into the group call The current call allocates a traffic channel in the narrowband target cell;第四接收单元,用于接收所述组归属窄带核心网反馈的所述业务信道的信息;a fourth receiving unit, configured to receive information about the traffic channel fed back by the group-owned narrowband core network;所述发送模块包括:The sending module includes:第五发送单元,用于将所述业务信道的信息发送给所述终端。And a fifth sending unit, configured to send information about the traffic channel to the terminal.
- 根据权利要求24所述的核心网,其特征在于,核心网设备为所述窄带目标小区归属的窄带核心网时,所述分配模块包括:The core network according to claim 24, wherein when the core network device is a narrowband core network to which the narrowband target cell belongs, the allocation module includes:第五接收单元,用于当所述终端判断所述当前呼叫为组呼且组归属宽带核心网时,接收所述终端发送的呼叫建立请求,所述呼叫建立请求包括所述组呼的呼叫标识;a fifth receiving unit, configured to: when the terminal determines that the current call is a group call and the group belongs to the broadband core network, receive a call setup request sent by the terminal, where the call setup request includes the call identifier of the group call ;第六发送单元,用于向所述组归属宽带核心网发送所述呼叫建立请求,以 使得所述组归属宽带核心网根据所述呼叫标识通过将所述终端并入所述组呼为所述当前呼叫在所述窄带目标小区分配业务信道;第六接收单元,用于接收所述组归属宽带核心网反馈的所述业务信道的信息;a sixth sending unit, configured to send the call setup request to the group home broadband core network, to And causing the group home broadband network to allocate a traffic channel in the narrowband target cell for the current call by combining the terminal into the group call according to the call identifier; and a sixth receiving unit, configured to receive the group Information of the traffic channel fed back to the broadband core network;所述发送模块包括:The sending module includes:第七发送单元,用于将所述业务信道的信息发送给所述终端。And a seventh sending unit, configured to send information about the traffic channel to the terminal.
- 根据权利要求24所述的核心网,其特征在于,核心网设备为所述统一融合核心网时,所述分配模块包括:The core network according to claim 24, wherein when the core network device is the unified and integrated core network, the allocation module comprises:第七接收单元,用于接收所述终端发送的呼叫建立请求,所述呼叫建立请求包括所述组呼的呼叫标识;a seventh receiving unit, configured to receive a call setup request sent by the terminal, where the call setup request includes a call identifier of the group call;分配单元,用于根据所述组呼的呼叫标识通过将所述终端并入所述组呼为所述当前呼叫在所述窄带目标小区分配业务信道;所述发送模块包括:An allocating unit, configured to allocate a traffic channel to the narrowband target cell for the current call by combining the terminal into the group call according to the call identity of the group call; the sending module includes:第八发送单元,用于将所述业务信道的信息发送给所述终端。And an eighth sending unit, configured to send information about the traffic channel to the terminal.
- 一种终端,其特征在于,包括:A terminal, comprising:收发器,处理器和总线;Transceiver, processor and bus;所述收发器与所述处理器通过所述总线相连;The transceiver and the processor are connected by the bus;所述处理器,具有如下功能:在宽带服务小区参与当前呼叫,所述终端在所述宽带服务小区及窄带服务小区均注册;The processor has the following functions: participating in a current call in a broadband serving cell, where the terminal is registered in both the broadband serving cell and the narrowband serving cell;所述收发器,具有如下功能:获取窄带目标小区中的当前呼叫的业务信道的信息;The transceiver has the function of: acquiring information of a traffic channel of a current call in a narrowband target cell;所述处理器,具有如下功能:根据所述获取模块获取的所述业务信道的信息从所述宽带服务小区切换至所述窄带目标小区继续所述当前呼叫。The processor has a function of: switching from the broadband serving cell to the narrowband target cell to continue the current call according to the information of the traffic channel acquired by the acquiring module.
- 一种核心网设备,其特征在于,包括:A core network device, comprising:收发器,处理器和总线;Transceiver, processor and bus;所述收发器与所述处理器通过所述总线相连;The transceiver and the processor are connected by the bus;所述处理器,具有如下功能:接收终端的请求为当前呼叫在窄带目标小区分配业务信道,所述终端在宽带服务小区参与所述当前呼叫,所述终端在所述宽带服务小区及窄带服务小区均注册;The processor has the following functions: the request of the receiving terminal allocates a traffic channel to the narrowband target cell for the current call, the terminal participates in the current call in the broadband serving cell, and the terminal is in the broadband serving cell and the narrowband serving cell Registered;所述收发器,具有如下功能:将所述处理模块获取到的所述业务信道信息发送给所述终端,以使得所述终端根据所述业务信道的信息从所述宽带服务小 区切换至所述窄带目标小区继续所述当前呼叫。 The transceiver has a function of: transmitting the traffic channel information acquired by the processing module to the terminal, so that the terminal is small from the broadband service according to information of the traffic channel. The zone switches to the narrowband target cell to continue the current call.
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110972154A (en) * | 2018-09-28 | 2020-04-07 | 普天信息技术有限公司 | Network configuration method and device |
CN111262891A (en) * | 2018-11-30 | 2020-06-09 | 成都鼎桥通信技术有限公司 | Data pushing method and system under wide-band and narrow-band fusion |
CN114286407A (en) * | 2021-12-02 | 2022-04-05 | 海能达通信股份有限公司 | Call switching method and device, computer readable storage medium and processor |
WO2022246712A1 (en) * | 2021-05-26 | 2022-12-01 | 海能达通信股份有限公司 | Method and apparatus for improving communication distance, and computer-readable storage medium |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1601948A (en) * | 2003-09-22 | 2005-03-30 | 华为技术有限公司 | Method for clustered user's terminal switching between small zones |
CN1672454A (en) * | 2002-08-01 | 2005-09-21 | 西门子移动通讯公司 | Controller for GSM and 3G base transceiver stations in a GSM core network with external handover possibility fr0m 3G cells to GSM cells, trasparent to GSM core network |
CN1706213A (en) * | 2002-10-17 | 2005-12-07 | 摩托罗拉公司 | A method and apparatus for handing over a subscriber unit between cellular communication systems |
US20090201823A1 (en) * | 2005-05-24 | 2009-08-13 | Telecom Italia S.P.A. | Method for Dimensioning A Data Packets Handler Apparatus In A Packet-Switched Mobile Communications Network |
-
2016
- 2016-05-05 WO PCT/CN2016/081101 patent/WO2017190305A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1672454A (en) * | 2002-08-01 | 2005-09-21 | 西门子移动通讯公司 | Controller for GSM and 3G base transceiver stations in a GSM core network with external handover possibility fr0m 3G cells to GSM cells, trasparent to GSM core network |
CN1706213A (en) * | 2002-10-17 | 2005-12-07 | 摩托罗拉公司 | A method and apparatus for handing over a subscriber unit between cellular communication systems |
CN1601948A (en) * | 2003-09-22 | 2005-03-30 | 华为技术有限公司 | Method for clustered user's terminal switching between small zones |
US20090201823A1 (en) * | 2005-05-24 | 2009-08-13 | Telecom Italia S.P.A. | Method for Dimensioning A Data Packets Handler Apparatus In A Packet-Switched Mobile Communications Network |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110972154A (en) * | 2018-09-28 | 2020-04-07 | 普天信息技术有限公司 | Network configuration method and device |
CN111262891A (en) * | 2018-11-30 | 2020-06-09 | 成都鼎桥通信技术有限公司 | Data pushing method and system under wide-band and narrow-band fusion |
CN111262891B (en) * | 2018-11-30 | 2022-04-29 | 成都鼎桥通信技术有限公司 | Data pushing method and system under wide-band and narrow-band fusion |
WO2022246712A1 (en) * | 2021-05-26 | 2022-12-01 | 海能达通信股份有限公司 | Method and apparatus for improving communication distance, and computer-readable storage medium |
CN114286407A (en) * | 2021-12-02 | 2022-04-05 | 海能达通信股份有限公司 | Call switching method and device, computer readable storage medium and processor |
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