CN110876120A - Processing method and device for cell switching of clustered terminals and base station - Google Patents
Processing method and device for cell switching of clustered terminals and base station Download PDFInfo
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- CN110876120A CN110876120A CN201811021245.7A CN201811021245A CN110876120A CN 110876120 A CN110876120 A CN 110876120A CN 201811021245 A CN201811021245 A CN 201811021245A CN 110876120 A CN110876120 A CN 110876120A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
- H04W4/08—User group management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0016—Hand-off preparation specially adapted for end-to-end data sessions
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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
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
Abstract
The embodiment of the invention discloses a processing method, a device and a base station for carrying out cell switching on a clustered terminal. When the terminal detects that the signal of the first cell is poor and the signal of the second cell is good, a switching request for switching to the second cell is sent to the first base station, and the first base station sends the request to the cluster core network. The cluster core network firstly checks whether the second cell is in the scheduling area of the group call, if not, the generated extension field is sent to the second base station, and the second base station does not allocate resources after receiving the extension field, thereby avoiding the false occupation of the communication resources of the second cell. The method ensures that the group calling service established in the second cell can not be deleted any more, simplifies the process of establishing the group calling service, improves the efficiency and reduces the error probability.
Description
Technical Field
The embodiment of the invention relates to the technical field of cluster communication and cell switching, in particular to a method and a device for processing cell switching of a cluster terminal and a base station.
Background
The B-trunC (broadband trunking communication system) takes TD-LTE as a core technology, combines the characteristics of high rate and large bandwidth of the TD-LTE with the characteristics of resource sharing, quick call establishment, command scheduling and the like in the digital trunking technology, and is a communication system capable of providing high-speed data transmission.
The group call service is the most basic service provided by the broadband trunking communication system. The group calling is a one-to-many half-duplex dispatching conversation, namely 'one-to-one correspondence', firstly, a calling user initiates the group calling establishment, users in the group can apply for speaking through the speaking right application process, only one user can speak in the same time, and other users in the group listen passively. In general, the group call service has no area limitation, and the cluster core network performs service establishment and reduction according to the TA where the registered members in the group are located. However, according to the user demand, some groups may be configured with scheduling areas, and the range of the scheduling areas in which the group can normally operate is set, and beyond the range of the scheduling areas, the group cannot perform a service. When the group call is initiated, a certain base station of the users in the group in the area range can normally answer the service, and when the terminal position moves, the cell reselects or is switched to other cells. For the RRC _ IDLE state trunking terminal, when cell reselection occurs, a tracking area update procedure is performed.
However, in the existing method, when a terminal needs to perform cell handover due to movement, the terminal is first subjected to cell handover, and then whether the cell after handover is in a scheduling area corresponding to a group call is determined, and if not, the terminal after handover is deleted from the group call. This handover method has the following disadvantages: (1) the process is redundant and the efficiency is low: when a connected terminal is switched to a cell of another base station, the cluster core network does not perform area range judgment, but performs group calling establishment first, and judges whether group calling reduction is needed after the switching is completed. The process is relatively redundant and the efficiency is low; (2) resource false preemption: when the group calling resource of the target base station is limited, the terminal is switched into the base station, and the base station is not in the scheduling area, the core network establishes the group calling and can seize other low priority group calling service resources, so that the low priority group calling is seized and released. Actually, the group call is only temporarily established, and the group call is released soon after the switching is completed, but the preempted group call service cannot be recovered; (3) the treatment principle is not uniform: for an idle terminal, when processing a tracking area updating process, a cluster core network judges whether a target cell is in a scheduling area, if so, the cluster core network triggers group calling establishment, otherwise, the cluster core network does not establish group calling; for the connected terminal, whether the terminal is in the scheduling area or not, the cluster core network is built first and then deleted, and the two principles are not consistent.
In the process of implementing the embodiment of the present invention, the inventor finds that the existing method for performing cell switching on a terminal in a group call is to perform cell switching first, and then judge whether the switched cell belongs to a scheduling area, and delete the terminal in the group call when the switched cell is not the scheduling area, which easily causes the false occupation of cell resources, and the switching process is tedious and is prone to errors.
Disclosure of Invention
The invention aims to solve the technical problems that the cell switching is firstly carried out, then whether the switched cell belongs to a scheduling area is judged, and when the switched cell is not the scheduling area, the terminal in the group call is deleted, the cell resource is easily occupied by mistake, the switching process is complicated, and the mistake is easily caused.
In view of the above technical problem, an embodiment of the present invention provides a method for performing cell handover on clustered terminals, including:
after receiving first request information which is sent by a first base station and used for switching a target terminal which is carrying out group calling communication from a first cell corresponding to the first base station to a second cell, judging whether the second cell is in a scheduling area corresponding to the group calling;
and if the second cell is not in the scheduling region, generating an extension field, and sending the extension field and the group calling identification information corresponding to the group calling to a second base station corresponding to the second cell.
The embodiment provides a processing method for performing cell switching on clustered terminals, which includes:
if receiving an instruction and the group call identification information which are sent by a cluster core network and used for switching a target terminal which is carrying out group call communication from a first cell to a second cell, judging whether an extension field for indicating whether the second cell is in a scheduling area corresponding to the group call is received or not;
if the extension field is received, ignoring the instruction and the group calling identification information;
if the extension field is not received, after the resources are allocated to the group call according to the group call identification information, sending information of the resources already allocated to the group call to the cluster core network, and after feedback information sent by the target terminal is received, sending third prompt information that the target terminal is successfully switched to the second cell to the cluster core network.
The embodiment provides a processing apparatus for performing cell handover on clustered terminals, including:
the first judging module is used for judging whether a second cell is in a scheduling area corresponding to the group call or not after receiving first request information which is sent by a first base station and used for switching a target terminal which is carrying out group call communication from a first cell corresponding to the first base station to the second cell;
and a generating module, configured to generate an extension field if the second cell is not in the scheduling region, and send the extension field and the group call identification information corresponding to the group call to a second base station corresponding to the second cell.
The present embodiment provides a base station, including:
a second judging module, configured to judge whether an extension field used for indicating whether a second cell is in a scheduling area corresponding to a group call is received if an instruction for switching a target terminal that is performing group call communication from a first cell to the second cell and information of each terminal in the group call, which are sent by a trunking core network, are received;
the first processing module is used for ignoring the instruction and the corresponding group call identification information if the extension field is received;
and the second processing module is used for sending the information of the resources allocated to the group call to the cluster core network after the resources are allocated to the group call according to the group call identification information if the extension field is not received, and sending third prompt information that the target terminal is successfully switched to the second cell to the cluster core network after the feedback information sent by the target terminal is received.
The embodiment provides an electronic device, including:
at least one processor, at least one memory, a communication interface, and a bus; wherein the content of the first and second substances,
the processor, the memory and the communication interface complete mutual communication through the bus;
the communication interface is used for information transmission between the electronic equipment and communication equipment of a terminal and a base station;
the memory stores program instructions executable by the processor, which when called by the processor are capable of performing the methods described above.
The present embodiments provide a non-transitory computer-readable storage medium storing computer instructions that cause the computer to perform the method described above.
The embodiment provides an electronic device, including:
at least one processor, at least one memory, a communication interface, and a bus; wherein the content of the first and second substances,
the processor, the memory and the communication interface complete mutual communication through the bus;
the communication interface is used for information transmission between the electronic equipment and communication equipment of a cluster core network and a terminal;
the memory stores program instructions executable by the processor, which when called by the processor are capable of performing the methods described above.
The present embodiments provide a non-transitory computer-readable storage medium storing computer instructions that cause the computer to perform the method described above.
The embodiment of the invention provides a processing method, a device and a base station for carrying out cell switching on a clustered terminal. When the terminal detects that the signal of the first cell is poor and the signal of the second cell is good, a switching request for switching to the second cell is sent to the first base station, and the first base station sends the request to the cluster core network. The cluster core network firstly checks whether the second cell is in the scheduling area of the group call, if not, the generated extension field is sent to the second base station, and the second base station does not allocate resources after receiving the extension field, thereby avoiding the false occupation of the communication resources of the second cell. The method ensures that the group calling service established in the second cell can not be deleted any more, simplifies the process of establishing the group calling service, improves the efficiency and reduces the error probability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic flowchart of a handover-removal area of a connected-state trunking terminal according to an embodiment of the present invention;
fig. 2 is a schematic flowchart of a processing method for performing cell handover on clustered terminals according to another embodiment of the present invention;
fig. 3 is a schematic flowchart of a processing method for performing cell handover on clustered terminals according to another embodiment of the present invention;
fig. 4 is a schematic flow chart of a process of optimizing a handover-move-out area flow of the connected-state trunking terminal in fig. 1 by using the method of this embodiment according to another embodiment of the present invention;
fig. 5 is a block diagram of a processing apparatus for performing cell handover on clustered terminals according to another embodiment of the present invention;
fig. 6 is a block diagram of a base station according to another embodiment of the present invention;
fig. 7 is a block diagram of an electronic device according to another embodiment of the present invention;
fig. 8 is a block diagram of an electronic device according to another embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Before describing the processing method for performing cell handover on a clustered terminal provided in this embodiment, a comparative cell handover method is described, which shows a processing procedure of performing cell handover on a clustered terminal in an RRC _ CONNECTED state according to a B-true standard, where fig. 1 is a schematic flow diagram of a handover-move-out area of a CONNECTED clustered terminal, and the method includes:
step 101: when the Measurement signal of the connected terminal meets the condition, sending a Measurement Report message on a DCCH to inform a cluster base station 1 (a source base station), and carrying adjacent region Measurement information and a Group ID (identity) participating in the process;
step 102: after receiving the Measurement Report message, the trunking base station 1 judges that the switching between the cells is performed under different base stations, and informs a trunking core network to initiate a switching process through a Handover Required message and carries information such as Group ID and target ECGI;
step 103: if the cluster base station 2 does not have the corresponding group call service, the cluster core network triggers the cluster base station 2 to establish the group call service;
step 104: the trunking core network sends a Handover Request message to a trunking base station 2 where a target cell is located;
step 105: after receiving a Handover Request message of a core network, the cluster base station 2 prepares corresponding resources according to the GROUP ID carried in the message, and sends a Handover Request Ack response message to the cluster core network, wherein the message carries GROUP related information, such as G-RNTI and the like;
step 106: after receiving the Handover Request Ack message, the trunking core network sends a Handover Command message to the trunking base station 1 to indicate to start switching;
step 107: the trunking base station 1 acquires the relevant information of the switching Command through a Handover Command message, and informs the UE to initiate switching through an RRCConnectionReconfiguration message, wherein the message carries the relevant information of the group, such as G-RNTI and the like;
step 108: the terminal replies an RRCConnectionReconfiguration complete message in the new cell;
step 109: the trunking base station 2 sends a Handover Notify message to the core network to inform the terminal that the Handover is successful;
step 110: the cluster core network judges that the target cell is out of the area range, and informs the cluster base station 2 to delete the group calling resource of the cell;
step 111-step 112: for the speaking right user, the cluster core network informs the UE to release the speaking right, and the carried reason value is 'the user exceeds the service area';
step 113: the cluster core network informs the UE to release the group call, and the carried reason value is 'the terminal of the user exceeds the service area'.
In the method, after receiving request information sent by a base station for switching cells for terminals, a cluster core network directly sends information of each terminal in a group call to the base station corresponding to a target cell to be switched, so that the base station allocates resources for the terminals to perform cell switching. After the terminal is switched to the target cell, whether the target cell belongs to the service area (namely whether the target cell is in the scheduling area) is detected, and if not, the group call service of the target cell which is just created is deleted. The cell switching method of 'creating first and then deleting' leads the terminal to occupy the communication resource of the target cell by mistake, and influences the communication quality of the user with lower priority of the cell. In addition, the cell switching method of 'creating first and then deleting' is complicated, error is easy to occur, and efficiency is low. To solve this problem, fig. 2 is a schematic flowchart of a processing method for performing cell handover on clustered terminals according to this embodiment, and referring to fig. 2, the method includes:
201: after receiving first request information which is sent by a first base station and used for switching a target terminal which is carrying out group calling communication from a first cell corresponding to the first base station to a second cell, judging whether the second cell is in a scheduling area corresponding to the group calling;
202: and if the second cell is not in the scheduling region, generating an extension field, and sending the extension field and the group calling identification information corresponding to the group calling to a second base station corresponding to the second cell.
The method provided in this embodiment is executed by a device capable of executing the method, where the device is usually used as a cluster core network to perform unified management on devices (terminals or base stations) in a certain cluster, and a physical device used for executing the method may be a server or a dedicated device, which is not limited in this embodiment. In the terminals which are carrying out communication through the group call service, when a certain terminal needs to carry out cell switching, switching request information is sent to a base station corresponding to the certain terminal, and the request information is uploaded to a cluster core network through the base station. And when the cluster core network judges that the cell to be switched belongs to the scheduling area, the cluster core network sends information to the base station to complete the switching, otherwise, the cluster core network sends an extension field to the base station, so that the base station ignores the request for cell switching of the terminal after receiving the extension field, and avoids the establishment of group calling in the cell to be switched and the occupation of communication resources.
The first base station is a base station for communicating with a target terminal currently located in the first cell, the second cell is a cell to which the target terminal is to be switched, and the terminal located in the second cell communicates through the second base station. The group call is a communication form in which a plurality of communication devices communicate simultaneously. The scheduling area is a service area divided into groups in advance, for example, when some terminals are scheduled to perform group calling, the terminals can communicate through which cells, which are the scheduling areas corresponding to the group calling. The extension field is a predefined segment of characters (e.g., the extension field is trunk forkpair indication), and the base station ignores the request for creating the group call in the second cell after receiving the characters. The first request message may be sent to the cluster core network via a handover required message. The extension field and the information of each terminal in the group call can be sent to the second base station through a Handover Request message.
The embodiment provides a processing method for performing cell switching on a clustered terminal, and the cell switching on the terminal is realized through interaction of the terminal, a base station and a clustered core network in the method. When the terminal detects that the signal of the first cell is poor and the signal of the second cell is good, a switching request for switching to the second cell is sent to the first base station, and the first base station sends the request to the cluster core network. The cluster core network firstly checks whether the second cell is in the scheduling area of the group call, if not, the generated extension field is sent to the second base station, and the second base station does not allocate resources after receiving the extension field, thereby avoiding the false occupation of the communication resources of the second cell. The method ensures that the group calling service established in the second cell can not be deleted any more, simplifies the process of establishing the group calling service, improves the efficiency and reduces the error probability.
Further, on the basis of the above embodiment, the method further includes:
and sending first prompt information for releasing the group call resource of the target terminal to a first base station and a second base station corresponding to the first cell.
Further, if the target terminal is currently a group calling speaking right user, sending prompt information for releasing the speaking right to the first base station and the second base station.
The speaking right users of the group calling are users who are actively speaking in the group calling currently, and other users are in a passive answering state.
When the information sent by the cluster core network and received by the second base station carries the extension field, the communication resource cannot be allocated to the terminal, and meanwhile, the cluster core network also sends first prompt information for releasing the group call resource to the second base station and the first base station, so that the target terminal can quit the group call in time at a position with poor communication quality, and resource waste is avoided.
The embodiment provides a method for processing cell handover of a clustered terminal, which is characterized in that after information carrying an extension field is sent to a second base station, prompt information for releasing group calling is sent to a first base station and the second base station in time, communication resources occupied by a target terminal are deleted in time, and resource waste is avoided.
Further, on the basis of the above embodiments, the method further includes:
if the second cell is in the scheduling area and the group call is not established in the second cell, sending the group call identification information to the second base station, and after receiving the information which is sent by the second base station and used for allocating resources for the group call, sending second prompt information which is used for allocating resources for the group call to the first base station.
Further, if the second cell is in the scheduling area and the group call is created by the second cell, the target terminal is added to the created group call.
Therefore, after the target terminal is connected to the second base station, a message, for example, rrcconnectionreconfiguration complete message, is sent to the second base station, and after receiving the message, the second base station sends a Handover notification message to the trunking core network, indicating that the cell Handover process of the target cell is finished.
The information that the second base station has allocated resources for the target terminal and is sent by the second base station may enable the second base station to send to the trunking core network through a Handover Request Ack response message. The second hint information may be sent to the first base station through a Handover Command message, so that the first base station notifies the UE to initiate cell Handover through an RRCConnectionReconfiguration message.
The present embodiment provides a processing method for performing cell handover on a clustered terminal, where after determining that a second cell belongs to a scheduling area, a clustered core network sends information to a second base station without carrying an extension field, so that the second base station, the first base station, the terminal, and the clustered core network interact to establish a group call in the second cell, thereby completing cell handover of a target terminal.
As the technical features of the cluster core network in the method for processing cell handover of a clustered terminal provided in this embodiment, the technical features of the base station in the method for processing cell handover of a clustered terminal will be described below. As a base station, fig. 3 is a schematic flowchart of a processing method for performing cell handover on clustered terminals according to this embodiment, with reference to fig. 3, including:
301: if receiving an instruction and the group call identification information which are sent by a cluster core network and used for switching a target terminal which is carrying out group call communication from a first cell to a second cell, judging whether an extension field for indicating whether the second cell is in a scheduling area corresponding to the group call is received or not;
302: if the extension field is received, ignoring the instruction and the group calling identification information;
303: if the extension field is not received, after the resources are allocated to the group call according to the group call identification information, sending information of the resources already allocated to the group call to the cluster core network, and after feedback information sent by the target terminal is received, sending third prompt information that the target terminal is successfully switched to the second cell to the cluster core network.
The base station provided in this embodiment is an action executed by a second base station corresponding to a second cell to be handed over, and since the target terminal is not yet handed over to the second cell at this time, the second base station performs cell handover on the target terminal through the received information of the trunking core network. In the base station provided in this embodiment, after receiving the information for switching the cell for the target terminal, the base station first determines whether the received information includes an extension field, and if so, directly ignores the information for switching the cell for the target terminal, and does not perform processing, otherwise, allocates resources for the group call, and performs cell switching. The method avoids the situation that the group call is established first and then is deleted because the second cell does not belong to the scheduling area, and avoids the unnecessary operation and the false occupation of resources.
Ignoring the instruction and the group call identification information may be directly discarding the received information. And the base station can send the information of the resources allocated to the group call to the cluster core network through the Handover Request Ack. After the target terminal is switched to the second cell, the feedback information can be sent to the second base station through RRCConnectionReconfiguration, and the second base station sends third prompt information to the trunking core network through Handover notification to indicate that the cell switching of the target terminal is successful.
The embodiment provides a processing method for performing cell switching on a clustered terminal, and the cell switching on the terminal is realized through interaction of the terminal, a base station and a clustered core network in the method. When the terminal detects that the signal of the first cell is poor and the signal of the second cell is good, a switching request for switching to the second cell is sent to the first base station, and the first base station sends the request to the cluster core network. The cluster core network firstly checks whether the second cell is in the scheduling area of the group call, if not, the generated extension field is sent to the second base station, and the second base station does not allocate resources after receiving the extension field, thereby avoiding the false occupation of the communication resources of the second cell. The method ensures that the group calling service established in the second cell can not be deleted any more, simplifies the process of establishing the group calling service, improves the efficiency and reduces the error probability.
The following embodiments provide a method performed by the base station as a first base station corresponding to a first cell in which a current target terminal is located, that is, on the basis of the above embodiments, the method further includes:
and if second request information sent by the target terminal and switched from the current first cell to the second cell is received, sending the second request information to the cluster core network.
The second request information may be sent by the target terminal to the first base station through a Measurement Report message. And the target terminal detects the signal quality of the cell where the target terminal is located at any time, and when the signal quality of the first cell is detected to be lower than the preset quality and the signal quality of the second cell is detected to be higher than the preset quality (namely, the conditions are met), second request information is sent to the first base station, so that the first base station sends the second request information to the trunking core network, and cell switching is realized through interaction between the trunking core network and the second base station.
Further, on the basis of the above embodiments, the method further includes:
and if second prompt information which is sent by the cluster core network and used for allocating resources for the group call is received, fourth prompt information for switching to the second cell is sent to the target terminal.
The second hint information may be sent by the trunked core network to the first base station via a Handover Command message.
Further, on the basis of the above embodiments, the method further includes:
and after receiving first prompt information for releasing the group calling resource of the group calling, sending the first prompt information to the target terminal.
The first base station can send first prompt information to the target terminal through the group call Release Indication.
Correspondingly, after receiving the first prompt message, the terminal displays the prompt message of exiting the group call because the second cell does not belong to the scheduling area, and closes the group call interface.
The embodiment provides a processing method for performing cell handover on a clustered terminal, which implements cell handover on a target terminal through interaction of a first base station, a second base station, a clustered core network and a terminal.
Fig. 4 is a schematic flow chart illustrating a process of optimizing a handover-move-out area flow of the connected trunking terminal in fig. 1 by using the method of the embodiment, and referring to fig. 4, the optimized method includes:
step 401: when the Measurement signal of the connected terminal meets the condition, a Measurement Report message is sent on a DCCH to inform a cluster base station (a source base station, namely the first base station) and carry the Measurement information of the adjacent cell and the group ID (information of each terminal in the group call) which participates in the process;
step 402: after receiving the Measurement Report message, the trunking base station 1 judges that the switching between the cells is performed under different base stations, and informs a trunking core network to initiate a switching process through a Handover Required message and carries information such as a group ID (identity) and a target ECGI (electronically commutated gateway);
step 403: and the cluster core network performs logic judgment. Among them, two situations are included: 403a, if the target cell is in the scheduling area of the group and the target cell has no corresponding group call service, the trunking core network triggers the trunking base station 2 (i.e. the second base station mentioned above) to establish the group call service; 403b if the Target cell is not in the scheduling area of the group, the trunking core network needs to extend a trunk forking indication field (extension field) in the Handover Request message for instructing the Target base station to ignore the trunking information in the Source eNB to Target enbtransmission Container in the Handover Request message;
step 404: the trunking core network sends a Handover Request message to a trunking base station 2 where a target cell (the second cell) is located, wherein the message carries an expanded trunk Forbiddendication field;
step 405: the cluster base station 2 receives a Handover Request message of a core network, if the message does not carry a trunk Forbiddeindicating field, prepares corresponding resources according to a GROUP ID carried by an IE including a Source eNB to Target eNBransmission Container in the message, and sends a Handover Request Ack response message to the core network, wherein the message carries GROUP related information such as G-RNTI and the like; if the message carries a trunk Forbiddendication field, only the resource preparation of broadband access is carried out, and the cluster information carried in the message is ignored;
step 406: if the target cell is not in the dispatching area of the group and the switched terminal is a group calling speaking right user, the network side needs to initiate a speaking right releasing process;
step 407: if the target cell is not in the scheduling area of the group, the network side needs to send a group call Release Indication message to the terminal through a point-to-point message, trigger the terminal to exit the group call interface, and Release the group call resource;
step 408: after receiving the Handover Request Ack message, the cluster core network sends a Handover Command message to the source cell to indicate the start of switching;
step 409: the trunking base station 1 acquires the relevant information of the Handover Command through the Handover Command message, and notifies the UE to initiate Handover through the RRCConnectionReconfiguration message. For a scenario in which the target cell is not in the scheduling area, the RRCConnectionReconfiguration message does not carry cluster-related information. If the target cell is included in the scheduling area and the Handover Command message carries the cluster information, the RRCConnectionReconfiguration carries the group related information, such as G-RNTI and the like;
step 410: the UE replies to the RRCConnectionReconfiguration complete message in the new cell;
step 411: the trunking base station 2 sends a Handover Notify message to the trunking core network to inform the user that the Handover is successful.
In addition, in order to implement communication between the cluster base station, the cluster core network, and the terminal, an S1-MME interface Handover Request message needs to be modified, where the message is sent by the MME to the target base station to Request the target base station to prepare resources, and a description of the specific modification is shown in table 1. It should be noted that, in the Source toTargetTransparent Container in the Handover Request, there is a field Group Identity, and the field includes Group call identification information.
TABLE 1Handover Request message content (Direction: MME → eNB)
When the Target cell is not in the scheduling area of the group, the Target cell needs to carry a trunk forkhardindication field for instructing the Target base station to ignore the group information carried in the Source eNB to Target eNB transfer Container. The contents of the trunkingforbiddendication field are shown in table 2.
TABLE 2 TrunkingForbiddendication field contents
In summary, compared with the method for processing cell handover for a clustered terminal provided in fig. 1, in the method for processing cell handover for a clustered terminal provided in this embodiment, when a cluster core network receives a handover required message sent by a source base station, it is necessary to determine whether a target cell is in a group scheduling area, if so, perform group call setup on the target base station side, otherwise, trigger terminal speaking right release and group call resource release, and not initiate group call setup to a base station. On the other hand, the target base station allocation cluster resource indication method comprises the following steps: the method and the device extend the IE of the trunk Forbiddendication by modifying the Handover Request message, and indicate the Target base station to ignore the cluster information in the Source eNB to Target eNB Transparent Container in the Handover Request message and not to allocate cluster resources when the IE is assigned.
The method for processing cell switching for the clustered terminal provided by this embodiment has the following advantages: (1) the process is clear and clear, and is efficient: when the connected terminal is switched to a cell of another base station, the cluster core network judges a scheduling area, whether a target cell allows the group call to be established or not, if the target cell allows the group call to be established, the group call is established, otherwise, the group call is not established; the complex business process of first construction and then deletion is avoided; (2) resource waste is avoided: when the connected state terminal is switched, the cluster core network judges the scheduling area, and does not establish group calling in the cell in the scheduling area, thereby avoiding the possible business occupation when the business resource is limited and avoiding the waste of the business resource; (3) the treatment principle is unified: for the idle cell reselection and the connected terminal switching scenes, the cluster core network firstly selects a scheduling area, and the processing principles are completely consistent.
Fig. 5 is a block diagram of a processing apparatus for performing cell handover on a clustered terminal according to this embodiment, and referring to fig. 5, the processing apparatus for performing cell handover on a clustered terminal according to this embodiment includes a first determining module 501 and a generating module 502, wherein,
a first determining module 501, configured to determine whether a second cell is in a scheduling area corresponding to a group call after receiving first request information, sent by a first base station, for switching a target terminal that is performing group call communication from a first cell corresponding to the first base station to the second cell;
a generating module 502, configured to generate an extension field if the second cell is not in the scheduling area, and send the extension field and the group call identification information corresponding to the group call to a second base station corresponding to the second cell.
The processing apparatus for performing cell switching on a clustered terminal provided in this embodiment is suitable for the processing method for performing cell switching on a clustered terminal corresponding to the clustered core network provided in the above embodiment, and is not described herein again.
Fig. 6 is a structural block diagram of the base station provided in this embodiment, and referring to fig. 6, the base station provided in this embodiment includes a second determining module 601, a first processing module 602, and a second processing module 603, wherein,
a second determining module 601, configured to determine whether an extension field used for indicating whether a second cell is in a scheduling area corresponding to a group call is received if an instruction sent by a trunking core network to switch a target terminal that is performing group call communication from a first cell to the second cell and information of each terminal in the group call are received;
a first processing module 602, configured to ignore the instruction and the group call identifier information if the extension field is received;
a second processing module 603, configured to, if the extension field is not received, send information that resources have been allocated for the group call to the trunking core network after resources are allocated for the group call according to the group call identification information, and send, after receiving feedback information sent by the target terminal, third notification information that the target terminal is successfully switched to the second cell to the trunking core network.
The base station provided in this embodiment is suitable for the method for the base station to perform cell handover on the clustered terminal correspondingly, which is not described herein again.
The embodiment provides a processing device for performing cell switching on clustered terminals and a base station, wherein the cell switching on the terminals is realized through interaction of the terminals, the base station and a clustered core network. When the terminal detects that the signal of the first cell is poor and the signal of the second cell is good, a switching request for switching to the second cell is sent to the first base station, and the first base station sends the request to the cluster core network. The cluster core network firstly checks whether the second cell is in the scheduling area of the group call, if not, the generated extension field is sent to the second base station, and the second base station does not allocate resources after receiving the extension field, thereby avoiding the false occupation of the communication resources of the second cell. The device and the base station ensure that the group calling service established in the second cell can not be deleted any more, simplify the establishment process of the group calling service, improve the efficiency and reduce the error probability.
Fig. 7 is a block diagram showing the structure of the electronic apparatus provided in the present embodiment.
Referring to fig. 7, the electronic device includes: a processor (processor)701, a memory (memory)702, a communication Interface (Communications Interface)703, and a bus 704;
wherein the content of the first and second substances,
the processor 701, the memory 702 and the communication interface 703 complete mutual communication through the bus 704;
the communication interface 703 is used for information transmission between the electronic device and communication devices of a terminal and a base station;
the processor 701 is configured to call the program instructions in the memory 702 to execute the methods provided by the above-mentioned method embodiments, for example, including: after receiving first request information which is sent by a first base station and used for switching a target terminal which is carrying out group calling communication from a first cell corresponding to the first base station to a second cell, judging whether the second cell is in a scheduling area corresponding to the group calling; and if the second cell is not in the scheduling region, generating an extension field, and sending the extension field and the group calling identification information corresponding to the group calling to a second base station corresponding to the second cell.
The present embodiments provide a non-transitory computer-readable storage medium storing computer instructions that cause the computer to perform the methods provided by the above method embodiments, for example, including: after receiving first request information which is sent by a first base station and used for switching a target terminal which is carrying out group calling communication from a first cell corresponding to the first base station to a second cell, judging whether the second cell is in a scheduling area corresponding to the group calling; and if the second cell is not in the scheduling region, generating an extension field, and sending the extension field and the corresponding group call identification information to a second base station corresponding to the second cell.
The present embodiments disclose a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, enable the computer to perform the methods provided by the above-described method embodiments, for example, comprising: after receiving first request information which is sent by a first base station and used for switching a target terminal which is carrying out group calling communication from a first cell corresponding to the first base station to a second cell, judging whether the second cell is in a scheduling area corresponding to the group calling; and if the second cell is not in the scheduling region, generating an extension field, and sending the extension field and the group calling identification information corresponding to the group calling to a second base station corresponding to the second cell.
Fig. 8 is a block diagram showing the structure of the electronic apparatus provided in the present embodiment.
Referring to fig. 8, the electronic device includes: a processor (processor)801, a memory (memory)802, a communication Interface (Communications Interface)803, and a bus 804;
wherein the content of the first and second substances,
the processor 801, the memory 802 and the communication interface 803 complete mutual communication through the bus 804;
the communication interface 803 is used for information transmission between the electronic device and communication devices of a cluster core network and a terminal;
the processor 801 is configured to call program instructions in the memory 802 to perform the methods provided by the above-described method embodiments, including for example: if receiving an instruction and the group call identification information which are sent by a cluster core network and used for switching a target terminal which is carrying out group call communication from a first cell to a second cell, judging whether an extension field for indicating whether the second cell is in a scheduling area corresponding to the group call is received or not; if the extension field is received, ignoring the instruction and the group calling identification information; if the extension field is not received, after the resources are allocated to the group call according to the group call identification information, sending information of the resources already allocated to the group call to the cluster core network, and after feedback information sent by the target terminal is received, sending third prompt information that the target terminal is successfully switched to the second cell to the cluster core network.
The present embodiments provide a non-transitory computer-readable storage medium storing computer instructions that cause the computer to perform the methods provided by the above method embodiments, for example, including: if receiving an instruction and the group call identification information which are sent by a cluster core network and used for switching a target terminal which is carrying out group call communication from a first cell to a second cell, judging whether an extension field for indicating whether the second cell is in a scheduling area corresponding to the group call is received or not; if the extension field is received, ignoring the instruction and the group calling identification information; if the extension field is not received, after the resources are allocated to the group call according to the group call identification information, sending information of the resources already allocated to the group call to the cluster core network, and after feedback information sent by the target terminal is received, sending third prompt information that the target terminal is successfully switched to the second cell to the cluster core network.
The present embodiments disclose a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, enable the computer to perform the methods provided by the above-described method embodiments, for example, comprising: if receiving an instruction and the group call identification information which are sent by a cluster core network and used for switching a target terminal which is carrying out group call communication from a first cell to a second cell, judging whether an extension field for indicating whether the second cell is in a scheduling area corresponding to the group call is received or not; if the extension field is received, ignoring the instruction and the group calling identification information; if the extension field is not received, after the resources are allocated to the group call according to the group call identification information, sending information of the resources already allocated to the group call to the cluster core network, and after feedback information sent by the target terminal is received, sending third prompt information that the target terminal is successfully switched to the second cell to the cluster core network.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
The above-described embodiments of the electronic device and the like are merely illustrative, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may also be distributed on 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 present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the embodiments of the present invention, and are not limited thereto; although embodiments of the present invention have been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A processing method for performing cell switching on clustered terminals is characterized by comprising the following steps:
after receiving first request information which is sent by a first base station and used for switching a target terminal which is carrying out group calling communication from a first cell corresponding to the first base station to a second cell, judging whether the second cell is in a scheduling area corresponding to the group calling;
and if the second cell is not in the scheduling region, generating an extension field, and sending the extension field and the group calling identification information corresponding to the group calling to a second base station corresponding to the second cell.
2. The method of claim 1, further comprising:
and sending first prompt information for releasing the group call resource of the target terminal to a first base station and a second base station corresponding to the first cell.
3. The method of claim 1, further comprising:
if the second cell is in the scheduling area and the group call is not established in the second cell, sending the group call identification information to the second base station, and after receiving the information which is sent by the second base station and used for allocating resources for the group call, sending second prompt information which is used for allocating resources for the group call to the first base station.
4. A processing method for performing cell switching on clustered terminals is characterized by comprising the following steps:
if receiving an instruction and the group call identification information which are sent by a cluster core network and used for switching a target terminal which is carrying out group call communication from a first cell to a second cell, judging whether an extension field for indicating whether the second cell is in a scheduling area corresponding to the group call is received or not;
if the extension field is received, ignoring the instruction and the group calling identification information;
if the extension field is not received, after the resources are allocated to the group call according to the group call identification information, sending information of the resources already allocated to the group call to the cluster core network, and after feedback information sent by the target terminal is received, sending third prompt information that the target terminal is successfully switched to the second cell to the cluster core network.
5. The method of claim 4, further comprising:
and if second request information sent by the target terminal and switched from the current first cell to the second cell is received, sending the second request information to the cluster core network.
6. The method of claim 4, further comprising:
and if second prompt information which is sent by the cluster core network and used for allocating resources for the group call is received, fourth prompt information for switching to the second cell is sent to the target terminal.
7. The method of claim 4, further comprising:
and after receiving first prompt information for releasing the group calling resource of the group calling, sending the first prompt information to the target terminal.
8. A processing apparatus for performing cell handover for terminals of a cluster, comprising:
the first judging module is used for judging whether a second cell is in a scheduling area corresponding to the group call or not after receiving first request information which is sent by a first base station and used for switching a target terminal which is carrying out group call communication from a first cell corresponding to the first base station to the second cell;
and a generating module, configured to generate an extension field if the second cell is not in the scheduling region, and send the extension field and the group call identification information corresponding to the group call to a second base station corresponding to the second cell.
9. A base station, comprising:
a second judging module, configured to judge whether an extension field used for indicating whether a second cell is in a scheduling area corresponding to a group call is received if an instruction for switching a target terminal that is performing group call communication from a first cell to the second cell and information of each terminal in the group call, which are sent by a trunking core network, are received;
the first processing module is used for ignoring the instruction and the group calling identification information if the extension field is received;
and the second processing module is used for sending the information of the resources allocated to the group call to the cluster core network after the resources are allocated to the group call according to the group call identification information if the extension field is not received, and sending third prompt information that the target terminal is successfully switched to the second cell to the cluster core network after the feedback information sent by the target terminal is received.
10. The base station of claim 9, further comprising:
and the transceiver module is used for sending the second request information to the cluster core network if receiving the second request information sent by the target terminal and switched from the current first cell to the second cell.
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