CN107182040B - Group call creation and group call data transmission method, mobility management device and base station - Google Patents
Group call creation and group call data transmission method, mobility management device and base station Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
- H04W4/08—User group management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/16—Communication-related supplementary services, e.g. call-transfer or call-hold
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
- H04W68/02—Arrangements for increasing efficiency of notification or paging channel
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
- H04W8/24—Transfer of terminal data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
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- H04W84/08—Trunked mobile radio systems
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Abstract
The invention provides a group call establishing method, which is applied to a mobility management device, wherein the mobility management device selects a set number of wireless network temporary identifications from all distributable wireless network temporary identifications to be used for group call communication; the method comprises the following steps: receiving a group call establishing instruction, and analyzing the instruction to obtain group call configuration information; analyzing and obtaining base stations included by the group call according to the group call configuration information; setting a group wireless network temporary identifier for the group call according to the selected wireless network temporary identifier; and sending the group calling configuration information and the group wireless network temporary identification information to base stations included in the group calling, enabling the base stations included in the group calling to establish the group calling according to the group calling configuration information, and scrambling the transmitted group calling data according to the group wireless network temporary identification. In the group call created by adopting the technical scheme, the group wireless network temporary identifications of all cells are the same, and the data analysis can be quickly completed when a user side receives data across the cells.
Description
Technical Field
The present invention relates to the field of trunking communication technologies, and in particular, to a group call creation method, a group call data transmission method, a mobility management apparatus, and a base station.
Background
In the trunking communication process, the base station uses the group wireless network temporary identifier to carry out scrambling processing on the group calling data of the group calling cell. The group wireless network temporary identifier of the base station is determined by the base station, and the group wireless network temporary identifiers of the base stations are different. Therefore, when one cluster group call covers a plurality of cells of a plurality of base stations, the group radio network temporary identifications of the group call cells under different base stations are different.
When the trunking terminal receives the group calling data in a certain group of calling cells, the trunking terminal needs to analyze the received group calling data through the group wireless network temporary identifier of the group calling cell. The cluster terminal in idle state in a group calling cell under a certain base station moves into a group calling cell under another base station, and when receiving group calling data, the cluster terminal needs to wait and monitor the group paging message of the current cell, acquire the temporary identifier of the group wireless network of the current cell from the monitored group paging message, and then analyze the received group calling data. In the process of analyzing the group call data, when the cluster terminal in the idle state receives the group call data across the group call cell, the cluster terminal needs to wait and monitor the group paging message of the current cell, and can analyze the received group call data after acquiring the group wireless network temporary identifier of the current cell.
Disclosure of Invention
Based on the defects and shortcomings of the prior art, the invention provides a group call creation and group call data transmission method, a mobility management device and a base station, which can ensure that group call data analysis can be rapidly completed when a cluster terminal receives group call data in a cross-cell manner.
A group call establishing method is applied to a mobility management device, and the mobility management device selects a set number of wireless network temporary identifications from all allocable wireless network temporary identifications for group call communication; the method comprises the following steps:
receiving a group call establishing instruction, and analyzing the group call establishing instruction to obtain configuration information of a group call to be established;
analyzing and obtaining a base station included by the group call to be created according to the configuration information of the group call to be created;
setting a group wireless network temporary identifier for the group call to be created according to the selected wireless network temporary identifiers with the set number;
and sending the configuration information of the group call to be created and the group wireless network temporary identification information to a base station included in the group call to be created, so that the base station included in the group call to be created creates the group call according to the configuration information of the group call to be created, and scrambling the transmitted group call data of the group call according to the group wireless network temporary identification.
Preferably, the setting a group radio network temporary identifier for the group call to be created according to the selected set number of radio network temporary identifiers includes:
and selecting an unoccupied wireless network temporary identifier from the selected wireless network temporary identifiers with the set number, and setting the unoccupied wireless network temporary identifier as the group wireless network temporary identifier of the group call to be created.
A mobility management apparatus comprising:
the resource allocation unit is used for selecting a set number of wireless network temporary identifications from all allocable wireless network temporary identifications for group call communication;
the device comprises an instruction receiving unit, a group call creating unit and a group call creating unit, wherein the instruction receiving unit is used for receiving a group call creating instruction and analyzing the group call creating instruction to obtain the configuration information of a group call to be created;
the target confirmation unit is used for analyzing and obtaining the base station included by the group call to be created according to the configuration information of the group call to be created;
a configuration unit, configured to set a group radio network temporary identifier for the group call to be created according to the selected set number of radio network temporary identifiers;
and the information sending unit is used for sending the configuration information of the group call to be created and the group wireless network temporary identification information to the base station included in the group call to be created, so that the base station included in the group call to be created creates the group call according to the configuration information of the group call to be created, and scrambling the transmitted group call data of the group call according to the group wireless network temporary identification.
Preferably, when the configuration unit sets a group radio network temporary identifier for the group call to be created according to the selected set number of radio network temporary identifiers, the configuration unit is specifically configured to:
and selecting an unoccupied wireless network temporary identifier from the selected wireless network temporary identifiers with the set number, and setting the unoccupied wireless network temporary identifier as the group wireless network temporary identifier of the group call to be created.
A mobility management apparatus comprising:
a memory and a processor;
the memory is connected with the processor and is used for storing programs and data generated in program operation;
the processor is used for realizing the following functions by running the program in the memory:
selecting a set number of wireless network temporary identifications from all distributable wireless network temporary identifications for group calling communication; receiving a group call establishing instruction, and analyzing the group call establishing instruction to obtain configuration information of a group call to be established; analyzing and obtaining a base station included by the group call to be created according to the configuration information of the group call to be created; setting a group wireless network temporary identifier for the group call to be created according to the selected wireless network temporary identifiers with the set number; and sending the configuration information of the group call to be created and the group wireless network temporary identification information to a base station included in the group call to be created, so that the base station included in the group call to be created creates the group call according to the configuration information of the group call to be created, and scrambling the transmitted group call data of the group call according to the group wireless network temporary identification.
Preferably, when the processor sets a group radio network temporary identifier for the group call to be created according to the selected set number of radio network temporary identifiers, the processor is specifically configured to:
and selecting an unoccupied wireless network temporary identifier from the selected wireless network temporary identifiers with the set number, and setting the unoccupied wireless network temporary identifier as the group wireless network temporary identifier of the group call to be created.
Preferably, the processor selects a set number of radio network temporary identifiers from all assignable radio network temporary identifiers for the group call communication, and is specifically configured to:
and selecting a set number of wireless network temporary identifications from the wireless network temporary identifications allocated to the base station for the group calling communication.
A group call data transmission method is applied to a base station, and the base station receives configuration information of a group call to be created and group wireless network temporary identification information of the group call to be created, which are sent by a mobility management device; creating a group call according to the configuration information of the group call to be created; storing the group wireless network temporary identification information of the group call to be created, and periodically broadcasting the information containing the group wireless network temporary identification of the group call in the cell of the created group call; the method comprises the following steps:
receiving downlink group call data of the created group call;
scrambling the downlink group calling data according to the stored group wireless network temporary identifier of the group calling;
and sending the scrambled downlink group calling data to a user side of the group calling.
Preferably, the periodically broadcasting information including the group radio network temporary identifier of the group call in the cell of the created group call includes:
generating a group paging message according to the group wireless network temporary identifier of the created group call;
periodically broadcasting the group paging message in the cells of the group call.
A base station, comprising:
the data receiving and processing unit is used for receiving the configuration information of the group call to be created and the group wireless network temporary identification information of the group call to be created, which are sent by the mobility management device; creating a group call according to the configuration information of the group call to be created; storing the group wireless network temporary identification information of the group call to be created, and periodically broadcasting the information containing the group wireless network temporary identification of the group call in the cell of the created group call;
a data receiving unit, configured to receive downlink group call data of the created group call;
a scrambling processing unit, configured to perform scrambling processing on the downlink group call data according to the stored group radio network temporary identifier of the group call;
and the data sending unit is used for sending the downlink group call data after scrambling processing to the user side of the group call.
Preferably, when the data receiving and processing unit periodically broadcasts the information including the group radio network temporary identifier of the group call in the cell of the created group call, the data receiving and processing unit is specifically configured to:
generating a group paging message according to the group wireless network temporary identifier of the created group call;
periodically broadcasting the group paging message in the cells of the group call.
A base station, comprising:
a memory and a processor;
the memory is connected with the processor and is used for storing programs and data generated in program operation;
the processor is used for realizing the following functions by running the program in the memory:
receiving configuration information of a group call to be created and group wireless network temporary identification information of the group call to be created, which are sent by a mobility management device; creating a group call according to the configuration information of the group call to be created; storing the group wireless network temporary identification information of the group call to be created, and periodically broadcasting the information containing the group wireless network temporary identification of the group call in the cell of the created group call; receiving downlink group call data of the created group call; scrambling the downlink group calling data according to the stored group wireless network temporary identifier of the group calling; and sending the scrambled downlink group calling data to a user side of the group calling.
Preferably, the processor is configured to, when periodically broadcasting information including the group radio network temporary identifier of the group call in the cell of the created group call, specifically:
generating a group paging message according to the group wireless network temporary identifier of the created group call;
periodically broadcasting the group paging message in the cells of the group call.
Preferably, the group radio network temporary identifier is a set number of radio network temporary identifiers used for group call communication, which are selected by the mobility management device from the radio network temporary identifiers allocated to the base station for occupation.
The group call establishing method is applied to a mobility management device for establishing the group call, and the mobility management device selects a set number of wireless network temporary identifications from all distributable wireless network temporary identifications for the group call communication. After receiving a group call establishing instruction, the mobility management device analyzes the instruction to obtain group call configuration information, and sets a group wireless network temporary identifier for the group call according to the selected wireless network temporary identifier for group call communication; then, the mobility management device sends the group calling configuration information and the group wireless network temporary identification information of the group calling to the base station included in the group calling, so that the base station creates the group calling, and scrambles the group calling data of the group calling according to the wireless network temporary identification corresponding to the group wireless network temporary identification of the group calling. Based on the above processing, all base stations included in the group call created by the mobility management device use the same wireless network temporary identifier to perform scrambling processing on the group call data, when the cluster terminal receives the group call data across the cells, the cluster terminal does not need to wait for acquiring the group wireless network temporary identifier of the current base station cell, and the group wireless network temporary identifier of any base station cell of the group call can be used to complete the analysis of the group call data, so that the speed of analyzing the group call data is higher, and the efficiency is higher.
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, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a flowchart illustrating a group call creation method according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a mobility management apparatus according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another mobility management apparatus according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a group call data transmission method according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a base station according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of another base station according to an embodiment of the present invention.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
The embodiment of the invention discloses a group call establishing method, which is applied to a mobility management device, wherein the mobility management device selects a set number of wireless network temporary identifications from all distributable wireless network temporary identifications to be used for group call communication;
specifically, a Mobility Management Entity (MME) is a high-level part in the communication system, and is a key control node for accessing the communication system to the network. The mobility management device is mainly responsible for processing work such as mobility management, bearing management, user authentication and the like. In an LTE communication system, an MME distributes a wireless network temporary identifier for each base station, and each base station carries out scrambling processing on communication data according to the wireless network temporary identifier distributed by the MME. In a cluster communication mode, an MME issues a group call establishing instruction to a base station and controls the base station to establish a group call. In the technical scheme of the embodiment of the invention, when the MME allocates the radio network temporary identifier for the base station, the reserved part of the radio network temporary identifier is not allocated but used for group calling communication. Accordingly, on the base station side, these reserved radio network temporary identifications are not used for scrambling LTE communication, but are used for scrambling group call data in group call communication.
After completing the above processing, when performing group call creation, the mobility management apparatus MME, as shown in fig. 1, specifically creates a method as follows:
s101, receiving a group call establishing instruction, and analyzing the group call establishing instruction to obtain configuration information of a group call to be established;
specifically, in an actual communication application scenario, when group call communication needs to be created, a technician inputs a group call creation instruction to a mobility management apparatus MME, where the instruction includes configuration information of a group call to be created, such as a group call coverage area, a group call bandwidth, and the like. After receiving the group call creation instruction, the MME automatically analyzes the instruction, and analyzes the configuration information of the group call to be created.
S102, analyzing and obtaining a base station included by the group call to be created according to the configuration information of the group call to be created;
specifically, when the MME creates a group call, it needs to send a group call creation instruction to a base station covered by the group call, and control the base station to create the group call. Therefore, after the MME analyzes the configuration information of the group call to be created from the received group call creation instruction, the MME further analyzes the range covered by the group call and the base stations included in the group call from the configuration information of the group call to be created, so that the MME sends the group call creation instruction to the base stations.
S103, setting a group wireless network temporary identifier for the group call to be created according to the selected wireless network temporary identifiers with the set number;
specifically, in the prior art, after receiving a group call creation instruction, the MME directly sends group call configuration information to a corresponding base station, and does not set a group radio network temporary identifier of the group call. After each base station creates a group call, the base stations respectively determine group wireless network temporary identifications used for group call communication, so that the group wireless network temporary identifications of different base station cells of the same group call are different.
In the technical solution of the embodiment of the present invention, the MME selects a set number of radio network temporary identifiers from all assignable radio network temporary identifiers in advance for group call communication. Before the MME sends a group call establishing instruction to the base station, a group wireless network temporary identifier is set for a group call to be established according to a wireless network temporary identifier selected in advance. That is, when the MME creates a group call, a uniquely determined group radio network temporary identifier is set for the group call.
S104, sending the configuration information of the group call to be created and the group wireless network temporary identification information to a base station included in the group call to be created, enabling the base station included in the group call to be created to create the group call according to the configuration information of the group call to be created, and scrambling the transmitted group call data of the group call according to the group wireless network temporary identification.
Specifically, after the MME sets a group radio network temporary identifier for the group call, the MME issues the group radio network temporary identifier information to each base station included in the group call along with the group call configuration information. After receiving the group calling configuration information, each base station creates a group calling according to the group calling configuration information, and scrambles the group calling data of the group calling by using the wireless network temporary identification of the self corresponding to the group wireless network temporary identification according to the received group wireless network temporary identification information. Since the group radio network temporary identifier information received by each base station is the same, each base station of the group call scrambles the group call data by using the same radio network temporary identifier. The cluster terminal in the group calling uses the same group wireless network temporary identifier in any base station cell of the group calling, and the analysis processing of the received group calling data can be completed.
The group call establishing method is applied to a mobility management device for establishing the group call, and the mobility management device selects a set number of wireless network temporary identifications from all distributable wireless network temporary identifications for the group call communication. After receiving a group call establishing instruction, the mobility management device analyzes the instruction to obtain group call configuration information, and sets a group wireless network temporary identifier for the group call according to the selected wireless network temporary identifier for group call communication; then, the mobility management device sends the group calling configuration information and the group wireless network temporary identification information of the group calling to the base station included in the group calling, so that the base station creates the group calling, and scrambles the group calling data of the group calling according to the wireless network temporary identification corresponding to the group wireless network temporary identification of the group calling. Based on the above processing, all base stations included in the group call created by the mobility management device use the same wireless network temporary identifier to perform scrambling processing on the group call data, when the cluster terminal receives the group call data across the cells, the cluster terminal does not need to wait for acquiring the group wireless network temporary identifier of the current base station cell, and the group wireless network temporary identifier of any base station cell of the group call can be used to complete the analysis of the group call data, so that the speed of analyzing the group call data is higher, and the efficiency is higher.
Optionally, in another embodiment of the present invention, the setting a group radio network temporary identifier for the group call to be created according to the selected set number of radio network temporary identifiers includes:
and selecting an unoccupied wireless network temporary identifier from the selected wireless network temporary identifiers with the set number, and setting the unoccupied wireless network temporary identifier as the group wireless network temporary identifier of the group call to be created.
Specifically, the mobility management device MME selects a set number of radio network temporary identifiers from all assignable radio network temporary identifiers for group call communication before the group call is created, and correspondingly, the base station side also reserves a corresponding set number of radio network temporary identifiers for group call communication. When the MME creates the group call, an unoccupied wireless network temporary identifier is directly selected from the preset number of wireless network temporary identifiers, and the unoccupied wireless network temporary identifier is set as the group wireless network temporary identifier of the group call to be created. The unoccupied radio network temporary identifier refers to a radio network temporary identifier which is not allocated to other group calls and is used as the group radio network temporary identifier.
The embodiment of the present invention also discloses a mobility management device, as shown in fig. 2, including:
a resource allocation unit 201, configured to select a set number of radio network temporary identifiers from all assignable radio network temporary identifiers for group call communication;
an instruction receiving unit 202, configured to receive a group call creation instruction, and analyze the group call creation instruction to obtain configuration information of a group call to be created;
a target confirmation unit 203, configured to analyze, according to the configuration information of the group call to be created, to obtain a base station included in the group call to be created;
a configuration unit 204, configured to set a group radio network temporary identifier for the group call to be created according to the selected set number of radio network temporary identifiers;
an information sending unit 205, configured to send the configuration information of the group call to be created and the group wireless network temporary identifier information to a base station included in the group call to be created, so that the base station included in the group call to be created creates a group call according to the configuration information of the group call to be created, and performs scrambling processing on the transmitted group call data of the group call according to the group wireless network temporary identifier.
Specifically, please refer to the content of the corresponding method embodiment for the specific working content of each unit in this embodiment, which is not described herein again.
In the mobility management apparatus provided in the embodiment of the present invention, when a group call is created, the resource allocation unit 201 selects a set number of temporary radio network identifiers from all the temporary radio network identifiers that can be allocated for the group call communication. After receiving the group call creation command, the command receiving unit 202 parses the group call configuration information from the command; the target confirmation unit 203 analyzes and obtains the base station included in the group call to be created according to the configuration information of the group call to be created; the configuration unit 204 sets a group wireless network temporary identifier for the group call according to the selected wireless network temporary identifier for group call communication; finally, the information sending unit 205 sends the group call configuration information and the group wireless network temporary identifier information of the group call to the base station included in the group call, so that the base station creates the group call, and performs scrambling processing on the group call data of the group call according to the wireless network temporary identifier corresponding to the group wireless network temporary identifier of the group call. Based on the above processing, all base stations included in the group call created by the mobility management device use the same wireless network temporary identifier to perform scrambling processing on the group call data, when the cluster terminal receives the group call data across the cells, the cluster terminal does not need to wait for acquiring the group wireless network temporary identifier of the current base station cell, and the group wireless network temporary identifier of any base station cell of the group call can be used to complete the analysis of the group call data, so that the speed of analyzing the group call data is higher, and the efficiency is higher.
Optionally, in another embodiment of the present invention, when the configuration unit 204 sets a group radio network temporary identifier for the group call to be created according to the selected set number of radio network temporary identifiers, specifically, the configuration unit is configured to:
and selecting an unoccupied wireless network temporary identifier from the selected wireless network temporary identifiers with the set number, and setting the unoccupied wireless network temporary identifier as the group wireless network temporary identifier of the group call to be created.
Specifically, please refer to the content of the corresponding method embodiment for the specific working content of the configuration unit 204 in this embodiment, which is not described herein again.
The embodiment of the invention discloses another mobility management device, which is shown in fig. 3 and comprises:
a memory 301 and a processor 302;
the memory 301 is connected to the processor 302, and is configured to store a program and data generated during program execution;
the processor 302 is configured to implement the following functions by running the program in the memory 301:
selecting a set number of wireless network temporary identifications from all distributable wireless network temporary identifications for group calling communication; receiving a group call establishing instruction, and analyzing the group call establishing instruction to obtain configuration information of a group call to be established; analyzing and obtaining a base station included by the group call to be created according to the configuration information of the group call to be created; setting a group wireless network temporary identifier for the group call to be created according to the selected wireless network temporary identifiers with the set number; and sending the configuration information of the group call to be created and the group wireless network temporary identification information to a base station included in the group call to be created, so that the base station included in the group call to be created creates the group call according to the configuration information of the group call to be created, and scrambling the transmitted group call data of the group call according to the group wireless network temporary identification.
Specifically, please refer to the content of the corresponding method embodiment for the specific work content of each part in this embodiment, which is not described herein again.
In the mobility management apparatus provided in the embodiment of the present invention, when a group call is created, the processor 302 selects a set number of temporary radio network identifiers from all assignable temporary radio network identifiers for the group call communication. After receiving the group call creation command, the processor 302 parses the group call configuration information from the command, and sets a group wireless network temporary identifier for the group call according to the selected wireless network temporary identifier for group call communication; then, the processor 302 sends the group call configuration information and the group wireless network temporary identifier information of the group call to the base station included in the group call, so that the base station creates the group call, and performs scrambling processing on the group call data of the group call according to the wireless network temporary identifier corresponding to the group wireless network temporary identifier of the group call. Based on the above processing, all base stations included in the group call created by the mobility management device use the same wireless network temporary identifier to perform scrambling processing on the group call data, when the cluster terminal receives the group call data across the cells, the cluster terminal does not need to wait for acquiring the group wireless network temporary identifier of the current base station cell, and the group wireless network temporary identifier of any base station cell of the group call can be used to complete the analysis of the group call data, so that the speed of analyzing the group call data is higher, and the efficiency is higher.
Optionally, in another embodiment of the present invention, when the processor 302 sets a group radio network temporary identifier for the group call to be created according to the selected set number of radio network temporary identifiers, the processor is specifically configured to:
and selecting an unoccupied wireless network temporary identifier from the selected wireless network temporary identifiers with the set number, and setting the unoccupied wireless network temporary identifier as the group wireless network temporary identifier of the group call to be created.
Specifically, please refer to the contents of the corresponding method embodiment for the specific working contents of the processor 302 in this embodiment, which are not described herein again.
Optionally, in another embodiment of the present invention, when the processor 302 selects a set number of radio network temporary identifiers from all assignable radio network temporary identifiers for a group call communication, the processor is specifically configured to:
and selecting a set number of wireless network temporary identifications from the wireless network temporary identifications allocated to the base station for the group calling communication.
Specifically, each base station needs to occupy some Radio Network Temporary Identities (RNTIs), for example, when the MME sets the RNTI1-30 for the base station occupancy, this indicates that RNTI1-RNTI30 is allocated to the base station for use. Further, the MME may set RNTI1-10 in the RNTI1-30 as a group radio network temporary identifier for group call communication, which is equivalent to unifying the group radio network temporary identifiers for the base stations.
The embodiment of the invention discloses a group call data transmission method, which is applied to a base station, wherein the base station receives configuration information of a group call to be created and group wireless network temporary identification information of the group call to be created, which are sent by a mobility management device; creating a group call according to the configuration information of the group call to be created; storing the group wireless network temporary identification information of the group call to be created, and periodically broadcasting the information containing the group wireless network temporary identification of the group call in the cell of the created group call;
specifically, in the technical solution of the embodiment of the present invention, a Mobility Management apparatus (MME) selects a set number of temporary radio network identifiers from all the allocable temporary radio network identifiers for group call communication, and correspondingly, on a base station side, the base station reserves the temporary radio network identifiers selected by the MME for group call communication. Specifically, when a group call is created, the MME sends group call configuration information and group radio network temporary identification information for the group call to the base station. And the base station creates a group call according to the received group call configuration information and stores the group wireless network temporary identification information of the group call. After the group call is established, the base station periodically broadcasts the group wireless network temporary identification information of the group call in the group call cell.
After the base station creates the group call according to the above process, when performing group call data transmission, as shown in fig. 4, the specific transmission process is as follows:
s401, receiving downlink group call data of the created group call;
specifically, the base station receives group call data to be sent to the created group call from the high-level core network.
S402, scrambling the downlink group call data according to the stored group wireless network temporary identifier of the group call;
specifically, after receiving the downlink group call data, the base station needs to perform scrambling processing on the downlink group call data. The base station stores the group wireless network temporary identification information of the group call sent by the MME in advance, and according to the group wireless network temporary identification information, the base station can confirm which reserved wireless network temporary identification is used by the MME to perform scrambling processing on the group call data of the group call. Specifically, the group radio network temporary identifier set by the MME is selected from the radio network temporary identifiers for group call communication that are selected in advance, so that the group radio network temporary identifier actually corresponds to a certain radio network temporary identifier in the reserved radio network temporary identifiers for group call communication. Based on the principle, the base station can quickly determine which radio network temporary identifier should be used to perform scrambling processing on the group call data according to the group radio network temporary identifier information sent by the MME. And the base station uses the confirmed wireless network temporary identifier to carry out scrambling processing on the received group calling data.
And S403, sending the scrambled downlink group call data to the user side of the group call.
Specifically, the base station sends the group call data to the group call user end through the group call cell after scrambling the group call data. Because the base station broadcasts the group wireless network temporary identification information periodically all the time, the group calling user end already acquires the group wireless network temporary identification of the group calling before receiving the group calling data, and the user end can quickly finish the analysis of the received group calling data by using the acquired group wireless network temporary identification without waiting for receiving the group wireless network temporary identification information of the group calling cell before analyzing the group calling data. Moreover, when the user end receives the group calling data across the cells, the data analysis can be completed by using the previously used group wireless network temporary identifier without replacing the group wireless network temporary identifier.
The data transmission method provided by the embodiment of the invention is applied to a base station, and the base station receives the group wireless network temporary identification information of the group call sent by an MME when the group call is established. And when the base station transmits the downlink group calling data, scrambling the downlink group calling data by using the radio network temporary identifier corresponding to the group radio network temporary identifier information sent by the MME. Because the base station which creates the group call carries out scrambling processing on the group call data according to the group wireless network temporary identifier sent by the MME, when the user terminal analyzes the group call data, the user terminal can complete data analysis by using the group wireless network temporary identifier of any base station cell, and especially when the group call data is received in a cross-cell manner, the user terminal can complete the analysis on the group call data by using the previously used group wireless network temporary identifier without waiting for receiving the group wireless network temporary identifier. The analysis speed is faster, and the efficiency is higher.
Optionally, in another embodiment of the present invention, the periodically broadcasting information including the group radio network temporary identifier of the group call in the cell of the created group call includes:
generating a group paging message according to the group wireless network temporary identifier of the created group call;
periodically broadcasting the group paging message in the cells of the group call.
Specifically, there are various optional ways for the base station to broadcast the group radio network temporary identification information. The information may be sent separately or in addition to other information, and the embodiment of the present invention does not strictly limit the specific way of broadcasting by the base station. The common mode is that the base station generates the group paging message according to the group wireless network temporary identifier of the group call, and broadcasts the group paging message periodically in the group call cell. After receiving the group paging message, the user side can analyze the group paging message to obtain the set of radio network temporary identifications.
The embodiment of the present invention also discloses a base station, as shown in fig. 5, including:
a data receiving and processing unit 501, configured to receive configuration information of a group call to be created and group radio network temporary identifier information of the group call to be created, where the configuration information is sent by a mobility management apparatus; creating a group call according to the configuration information of the group call to be created; storing the group wireless network temporary identification information of the group call to be created, and periodically broadcasting the information containing the group wireless network temporary identification of the group call in the cell of the created group call;
a data receiving unit 502, configured to receive downlink group call data of the created group call;
a scrambling processing unit 503, configured to perform scrambling processing on the downlink group call data according to the stored group radio network temporary identifier of the group call;
a data sending unit 504, configured to send the scrambled downlink group call data to the user side of the group call.
Specifically, please refer to the content of the corresponding method embodiment for the specific working content of each unit in this embodiment, which is not described herein again.
In the base station provided in the embodiment of the present invention, the data receiving and processing unit 501 receives configuration information of a group call to be created and group radio network temporary identification information of the group call to be created, which are sent by a mobility management apparatus; creating a group call according to the configuration information of the group call to be created; and storing the group wireless network temporary identification information of the group call to be created, and periodically broadcasting the information containing the group wireless network temporary identification of the group call in the cell of the created group call. When performing group call data transmission, the data receiving unit 502 receives downlink group call data of a created group call; the scrambling processing unit 503 scrambles the downlink group call data according to the stored group radio network temporary identifier of the group call; the data sending unit 504 sends the scrambled downlink group call data to the user side of the group call. In the technical scheme of the embodiment of the invention, the base station for creating the group call uses the same group wireless network temporary identifier set by the MME to carry out scrambling processing on the group call data. Therefore, when the user terminal analyzes the group calling data, the data analysis can be completed by using the group wireless network temporary identifier of any base station cell, and especially when the group calling data is received in a cross-cell manner, the analysis of the group calling data can be completed by using the previously used group wireless network temporary identifier without waiting for receiving the group wireless network temporary identifier. The analysis speed is faster, and the efficiency is higher.
Optionally, in another embodiment of the present invention, when the data receiving and processing unit 501 periodically broadcasts the information including the group radio network temporary identifier of the group call in the cell of the created group call, the data receiving and processing unit is specifically configured to:
generating a group paging message according to the group wireless network temporary identifier of the created group call;
periodically broadcasting the group paging message in the cells of the group call.
Specifically, please refer to the contents of the corresponding method embodiment for the specific working contents of the data receiving and processing unit 501 in this embodiment, which is not described herein again.
The embodiment of the invention discloses another base station, which is shown in fig. 6 and comprises:
a memory 601 and a processor 602;
the memory 601 is connected to the processor 602, and is used for storing programs and data generated during program running;
the processor 602 is configured to implement the following functions by executing the program in the memory 601:
receiving configuration information of a group call to be created and group wireless network temporary identification information of the group call to be created, which are sent by a mobility management device; creating a group call according to the configuration information of the group call to be created; storing the group wireless network temporary identification information of the group call to be created, and periodically broadcasting the information containing the group wireless network temporary identification of the group call in the cell of the created group call; receiving downlink group call data of the created group call; scrambling the downlink group calling data according to the stored group wireless network temporary identifier of the group calling; and sending the scrambled downlink group calling data to a user side of the group calling.
Specifically, please refer to the content of the corresponding method embodiment for the specific work content of each part in this embodiment, which is not described herein again.
In the base station provided in the embodiment of the present invention, the processor 602 receives configuration information of a group call to be created and group radio network temporary identification information of the group call to be created, which are sent by the mobility management apparatus; creating a group call according to the configuration information of the group call to be created; and storing the group wireless network temporary identification information of the group call to be created, and periodically broadcasting the information containing the group wireless network temporary identification of the group call in the cell of the created group call. When group call data transmission is performed, the processor 602 receives downlink group call data of the created group call; scrambling the downlink group calling data according to the stored group wireless network temporary identifier of the group calling; and sending the scrambled downlink group calling data to a user side of the group calling. In the technical scheme of the embodiment of the invention, the base station for creating the group call uses the same group wireless network temporary identifier set by the MME to carry out scrambling processing on the group call data. Therefore, when the user terminal analyzes the group calling data, the data analysis can be completed by using the group wireless network temporary identifier of any base station cell, and especially when the group calling data is received in a cross-cell manner, the analysis of the group calling data can be completed by using the previously used group wireless network temporary identifier without waiting for receiving the group wireless network temporary identifier. The analysis speed is faster, and the efficiency is higher.
Optionally, in another embodiment of the present invention, when the processor 602 periodically broadcasts the information including the group radio network temporary identifier of the group call in the cell of the created group call, the processor is specifically configured to:
generating a group paging message according to the group wireless network temporary identifier of the created group call;
periodically broadcasting the group paging message in the cells of the group call.
Specifically, please refer to the contents of the corresponding method embodiment for the specific working contents of the processor 602 in this embodiment, which are not described herein again.
Optionally, in another embodiment of the present invention, the group radio network temporary identifier is a set number of radio network temporary identifiers used for group call communication, which are selected by the mobility management apparatus from the radio network temporary identifiers allocated to the base station to occupy.
Specifically, in the LTE communication system, the MME allocates a radio network temporary identifier to each base station, and each base station performs scrambling processing on communication data according to the radio network temporary identifier allocated by the MME. In the technical scheme of the embodiment of the invention, when the MME allocates the radio network temporary identifier for the base station, the reserved part of the radio network temporary identifier is not allocated but used for group calling communication. Accordingly, on the base station side, these reserved radio network temporary identifications are not used for scrambling LTE communication, but are used for scrambling group call data in group call communication.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A group call establishing method is characterized in that the method is applied to a mobility management device, the mobility management device selects a set number of wireless network temporary identifications from all distributable wireless network temporary identifications for group call communication, wherein the set number of wireless network temporary identifications are selected from all distributable wireless network temporary identifications for the group call communication, and the method is realized by reserving the set number of wireless network temporary identifications for the group call communication when the wireless network temporary identifications are distributed to a base station; correspondingly, the base station governed by the mobility management device also uses the set number of wireless network temporary identifications selected by the mobility management device for scrambling group call data during group call communication; the method comprises the following steps:
receiving a group call establishing instruction, and analyzing the group call establishing instruction to obtain configuration information of a group call to be established;
analyzing and obtaining a base station included by the group call to be created according to the configuration information of the group call to be created;
according to the selected wireless network temporary identifications with the set number, setting a unique determined group wireless network temporary identification for the group call to be created;
sending the configuration information of the group call to be created and the group wireless network temporary identification information to a base station included in the group call to be created, enabling the base station included in the group call to be created to create the group call according to the configuration information of the group call to be created, and scrambling the group call data of the group call by using the wireless network temporary identification of the base station corresponding to the received group wireless network temporary identification information.
2. The method of claim 1, wherein the setting a uniquely determined group radio network temporary identifier for the group call to be created according to the selected set number of radio network temporary identifiers comprises:
and selecting an unoccupied wireless network temporary identifier from the selected wireless network temporary identifiers with the set number, and setting the unoccupied wireless network temporary identifier as the group wireless network temporary identifier of the group call to be created.
3. A mobility management apparatus, comprising:
a memory and a processor;
the memory is connected with the processor and is used for storing programs and data generated in program operation;
the processor is used for realizing the following functions by running the program in the memory:
selecting a set number of wireless network temporary identifications for group call communication from all allocable wireless network temporary identifications, wherein the set number of wireless network temporary identifications are selected for the group call communication from all allocable wireless network temporary identifications, and the method is realized by reserving the set number of wireless network temporary identifications for the group call communication when the wireless network temporary identifications are allocated to the base station; correspondingly, the base station governed by the mobility management device also uses the set number of wireless network temporary identifications selected by the mobility management device for scrambling group call data during group call communication; receiving a group call establishing instruction, and analyzing the group call establishing instruction to obtain configuration information of a group call to be established; analyzing and obtaining a base station included by the group call to be created according to the configuration information of the group call to be created; according to the selected wireless network temporary identifications with the set number, setting a unique determined group wireless network temporary identification for the group call to be created; sending the configuration information of the group call to be created and the group wireless network temporary identification information to a base station included in the group call to be created, enabling the base station included in the group call to be created to create the group call according to the configuration information of the group call to be created, and scrambling the group call data of the group call by using the wireless network temporary identification of the base station corresponding to the received group wireless network temporary identification information.
4. The apparatus of claim 3, wherein the processor, when setting a uniquely determined group radio network temporary identifier for the group call to be created according to the selected set number of radio network temporary identifiers, is specifically configured to:
and selecting an unoccupied wireless network temporary identifier from the selected wireless network temporary identifiers with the set number, and setting the unoccupied wireless network temporary identifier as the group wireless network temporary identifier of the group call to be created.
5. The apparatus of claim 3, wherein the processor selects a set number of radio network temporary identities from all assignable radio network temporary identities to be used for the group call communication, and is specifically configured to:
and selecting a set number of wireless network temporary identifications from the wireless network temporary identifications allocated to the base station for the group calling communication.
6. The group call data transmission method is characterized in that the method is applied to a base station, and the base station uses the set number of wireless network temporary identifications selected by a mobility management device for scrambling group call data in group call communication; the base station receives configuration information of a group call to be created and group wireless network temporary identification information of the group call to be created, which are sent by a mobility management device; creating a group call according to the configuration information of the group call to be created; storing the group wireless network temporary identification information of the group call to be created, and periodically broadcasting the information containing the group wireless network temporary identification of the group call in the cell of the created group call; the method comprises the following steps:
receiving downlink group call data of the created group call;
scrambling the downlink group calling data by using a wireless network temporary identifier of the group wireless network temporary identifier information which is self and corresponds to the received group wireless network temporary identifier information;
and sending the scrambled downlink group calling data to a user side of the group calling.
7. The method of claim 6, wherein the periodically broadcasting information including the group radio network temporary identity of the group call in the cell of the created group call comprises:
generating a group paging message according to the group wireless network temporary identifier of the created group call;
periodically broadcasting the group paging message in the cells of the group call.
8. A base station, comprising:
a memory and a processor;
the memory is connected with the processor and is used for storing programs and data generated in program operation;
the processor is used for realizing the following functions by running the program in the memory:
using the set number of wireless network temporary identifications selected by the mobility management device for scrambling group call data during group call communication; receiving configuration information of a group call to be created and group wireless network temporary identification information of the group call to be created, which are sent by a mobility management device; creating a group call according to the configuration information of the group call to be created; storing the group wireless network temporary identification information of the group call to be created, and periodically broadcasting the information containing the group wireless network temporary identification of the group call in the cell of the created group call; receiving downlink group call data of the created group call; scrambling the downlink group calling data by using a wireless network temporary identifier of the group wireless network temporary identifier information which is self and corresponds to the received group wireless network temporary identifier information; and sending the scrambled downlink group calling data to a user side of the group calling.
9. The base station of claim 8, wherein the processor is configured to, when periodically broadcasting information including the group radio network temporary identifier of the group call in the cell of the created group call, specifically:
generating a group paging message according to the group wireless network temporary identifier of the created group call;
periodically broadcasting the group paging message in the cells of the group call.
10. The base station of claim 8, wherein the group radio network temporary identifier is a set number of radio network temporary identifiers for group call communication selected by the mobility management device from the radio network temporary identifiers allocated to the base station.
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