CN112954610B - Group signaling transmission method and device - Google Patents
Group signaling transmission method and device Download PDFInfo
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- CN112954610B CN112954610B CN201911154709.6A CN201911154709A CN112954610B CN 112954610 B CN112954610 B CN 112954610B CN 201911154709 A CN201911154709 A CN 201911154709A CN 112954610 B CN112954610 B CN 112954610B
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/02—Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
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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
- H04W4/20—Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
- H04W52/0238—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is an unwanted signal, e.g. interference or idle signal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Computer Security & Cryptography (AREA)
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Abstract
The application discloses a group signaling transmission method and a group signaling transmission device, wherein the method comprises the following steps: an application layer of a terminal sends group information of a group which the terminal is interested in and encrypted information of a broadcast signaling to a Modem (Modem) of the terminal in advance; when the Modem receives an encrypted broadcast signaling from a broadcast/multicast service center (MBMS) multicast channel, the Modem decrypts the broadcast signaling according to the encryption information and judges whether the decrypted broadcast signaling is the broadcast signaling of a group in which the terminal is interested according to the group information, if so, the broadcast signaling is sent to the application layer for processing, and if not, the broadcast signaling is discarded. By applying the technical scheme disclosed by the application, the power consumption of the terminal can be effectively reduced.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a group signaling transmission method and apparatus.
Background
In the existing 3GPP multicast specification of the communication system, a server may send a related group service control signaling message (e.g., a mapto bearer message of a group) to a terminal through a multicast channel through a multicast air interface signaling. The group service control signaling message carries group information such as Temporary Mobile Group Identity (TMGI) and group identity (GroupID) of the group. After receiving the signaling messages, the terminal analyzes and processes all multicast signaling through an application layer.
Currently, in order to meet the security requirement that user data needs to be highly confidential, an end-to-end encryption function needs to be provided in a cluster system. In the encryption scenario, in addition to user speech requiring encryption, encryption is also required for signaling.
The inventor discovers that in the process of implementing the invention: in the encryption scene, the problems of high power consumption of the terminal and high battery cost exist by adopting the existing transmission scheme of the group signaling. The specific reason is analyzed as follows:
in the existing group signaling transmission scheme, after the Modem receives the encrypted group broadcast signaling, the Modem cannot decrypt the encrypted group broadcast signaling, and needs to transmit the encrypted group broadcast signaling to an application layer of a terminal, so that the application layer performs corresponding processing on the encrypted group broadcast signaling. Therefore, for the received encrypted group broadcast signaling, no matter whether the signaling belongs to the group message in which the user is interested, the application layer of the terminal needs to be started to process the signaling, and the broadcast signaling message is periodically sent, so that the application layer of the terminal needs to frequently process the group encrypted signaling which the user does not need to monitor, the terminal system cannot enter a dormant state, and the power consumption of the terminal is very high.
Disclosure of Invention
In view of this, the present invention mainly aims to provide a method and an apparatus for transmitting group signaling, which can effectively reduce power consumption of a terminal.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
a method for group signaling transmission, comprising:
an application layer of a terminal sends group information of a group which the terminal is interested in and encrypted information of a broadcast signaling to a Modem of the terminal in advance;
when the Modem receives an encrypted broadcast signaling from a broadcast/multicast service center MBMS multicast channel, the Modem decrypts the broadcast signaling according to the encryption information and judges whether the decrypted broadcast signaling is the broadcast signaling of a group in which the terminal is interested according to the group information, if so, the broadcast signaling is sent to the application layer for processing, and if not, the broadcast signaling is discarded.
Preferably, the group information comprises a group identity and/or a signalling multicast temporary mobile group identity, TMGI.
Preferably, the encryption information includes an encryption key and an encryption algorithm.
A transmission device for group signaling, which is arranged in a terminal, comprises: a processor and a Modem, wherein,
the processor is configured to: sending group information of a group which is interested in a terminal and encrypted information of a broadcast signaling to a Modem of the terminal under the triggering of a terminal application layer;
the Modem is used for: when receiving an encrypted broadcast signaling from a broadcast/multicast service center (MBMS) multicast channel, decrypting the broadcast signaling according to the encryption information, and judging whether the decrypted broadcast signaling is the broadcast signaling of a group in which the terminal is interested according to the group information, if so, sending the broadcast signaling to the application layer for processing, otherwise, discarding the broadcast signaling.
Preferably, the group information comprises a group identity and/or a signalling multicast temporary mobile group identity, TMGI.
Preferably, the encryption information includes an encryption key and an encryption algorithm.
The present application also discloses a non-transitory computer-readable storage medium storing instructions that, when executed by a processor, cause the processor to perform the steps of the transmission method of group signaling as described above.
The application also discloses an electronic device comprising the non-volatile computer-readable storage medium as described above, and the processor having access to the non-volatile computer-readable storage medium.
According to the technical scheme, in the method and the device for transmitting the group signaling, the application layer of the terminal sends the group information of the group of interest of the terminal and the encryption information of the broadcast signaling to the Modem in advance, so that when the Modem receives the encrypted broadcast signaling from the MBMS multicast channel, the Modem can decrypt the received broadcast signaling according to the encryption information of the broadcast signaling, and sends the received broadcast signaling to the application layer for processing when judging that the received broadcast signaling is the broadcast signaling of the group of interest of the terminal according to the group information of the group of interest of the terminal, otherwise, the broadcast signaling is discarded. Therefore, the Modem screens the encrypted broadcast signaling, so that the application layer only needs to receive and process the broadcast signaling of the group which the terminal is interested in, but does not need to receive and process the broadcast signaling of the group which the terminal is not interested in, thereby avoiding waking up the application layer when the encrypted broadcast signaling arrives each time, greatly reducing the signaling processing overhead of the application layer, further enabling the application layer system to enter a dormant state, and achieving the purpose of reducing the power consumption of the terminal.
Drawings
FIG. 1 is a schematic flow chart of a method according to an embodiment of the present invention;
fig. 2 is a flowchart of a specific implementation example of the method embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described in detail below by referring to the accompanying drawings and examples.
FIG. 1 is a schematic flow chart of a method according to an embodiment of the present invention. As shown in fig. 1, the method for transmitting group signaling implemented in this embodiment mainly includes:
In this step, in order to enable the Modem to screen the received encrypted broadcast signaling and ensure that only the broadcast signaling of the group in which the terminal is interested is sent to the application layer, so as to reduce the power consumption of the terminal by reducing the wakeup of the application layer, here, the application layer needs to send both the group information of the group in which the terminal is interested and the encrypted information of the broadcast signaling to the Modem.
Preferably, the group information may include a group identifier and/or a signaling multicast temporary mobile group identifier TMGI, and the specific information included may be determined according to actual needs, as long as it is ensured that the Modem can accurately identify whether the broadcast signaling belongs to the broadcast signaling of the group in which the terminal is interested.
The encryption information of the broadcast signaling may be determined by the application layer by negotiation with the server side. In order to ensure that the Modem can decrypt the broadcast signaling, the encryption information preferably includes at least an encryption key and an encryption algorithm, but is not limited thereto.
In practical application, after receiving the encryption information of the broadcast signaling, the Modem performs corresponding broadcast signaling encryption configuration to ensure that the encrypted broadcast signaling can be decrypted based on the configuration after being received.
102, when the Modem receives an encrypted broadcast signaling from a multicast channel of a broadcast/multicast service center (MBMS), the Modem decrypts the broadcast signaling according to the encryption information, and determines whether the decrypted broadcast signaling is the broadcast signaling of a group in which the terminal is interested according to the group information, if so, the Modem sends the broadcast signaling to the application layer for processing, otherwise, the Modem discards the broadcast signaling.
In practical application, after the server side decides to initiate the group call service, the encrypted broadcast signaling is sent on the MBMS multicast channel. In this step, different from the existing system, after receiving the encrypted broadcast signaling, the Modem does not send the encrypted broadcast signaling to the application layer for processing any more, but decrypts the broadcast signaling based on the encryption information of the broadcast signaling sent before the application layer, then screens the decrypted broadcast signaling, only sends the broadcast signaling of the group in which the terminal is interested to the application layer, and directly discards the broadcast signaling of the group in which the terminal is not interested, thereby reducing the processing overhead of the application layer.
It should be noted here that in the present application: compared with the analysis processing of the broadcast signaling by the application layer, the power consumption required by the Modem for the preprocessing of the broadcast signaling is very low, so that in the step, the Modem is used for preprocessing the broadcast signaling to avoid frequent awakening of the application layer, so that the application system of the terminal can be in a dormant state at an opportunity, and the effect of greatly saving the power consumption can be achieved.
The following further describes the above method embodiment with reference to a specific implementation example of the above method embodiment:
as shown in fig. 2, this example specifically includes the following steps:
step 1, an application layer (AP) issues the interested group list of the terminal and the signaling multicast TMGI information to the Modem so that the Modem can filter the broadcast signaling messages.
And step 2, the application layer (AP) and the Server side (MCPTT Server) perform broadcast signaling encryption negotiation to obtain information such as a key and an encryption algorithm.
And 3, the application layer (AP) issues the encryption information such as the broadcast signaling encryption key, the encryption algorithm and the like to the Modem.
And 4, carrying out encryption configuration by the Modem according to the received encryption information such as the broadcast signaling encryption key, the encryption algorithm and the like.
And step 5, the Server side (MCPTT Server) decides to initiate the group calling service.
And 6, transmitting the encrypted broadcast signaling on an MBMS multicast channel.
And 7, the Modem receives the encrypted broadcast signaling from the MBMS multicast channel for decryption, and then discards the broadcast signaling which does not need to be processed by the terminal according to a filtering principle.
And step 8, the Modem sends the broadcast signaling to be processed by the terminal to an application side (AP) for corresponding processing.
Corresponding to the above method embodiment, the present application further provides a group signaling transmission apparatus, which is disposed in a terminal and includes: a processor and a Modem, wherein,
the processor is configured to: sending the group information of the interested group of the terminal and the encrypted information of the broadcast signaling to a Modem of the terminal under the triggering of a terminal application layer;
the Modem is used for: when receiving an encrypted broadcast signaling from a broadcast/multicast service center (MBMS) multicast channel, decrypting the broadcast signaling according to the encryption information, judging whether the decrypted broadcast signaling is the broadcast signaling of a group in which the terminal is interested according to the group information, if so, sending the broadcast signaling to the application layer for processing, and if not, discarding the broadcast signaling.
Preferably, the group information comprises a group identity and/or a signalling multicast temporary mobile group identity, TMGI.
Preferably, the encryption information includes an encryption key and an encryption algorithm.
It can be seen from the foregoing embodiments that, in the transmission scheme of the group signaling provided in the present application, the application layer of the terminal sends the group information of the group in which the terminal is interested and the encryption information of the broadcast signaling to the Modem in advance, so that when the Modem receives the encrypted broadcast signaling from the MBMS multicast channel, the Modem may decrypt the received broadcast signaling according to the encryption information of the broadcast signaling, and according to the group information of the group in which the terminal is interested, send the received broadcast signaling to the application layer for processing when determining that the received broadcast signaling is the broadcast signaling of the group in which the terminal is interested, otherwise discard the broadcast signaling. Therefore, the application layer only needs to process the broadcast signaling of the group in which the terminal is interested, but does not need to process the broadcast signaling of the group in which the terminal is not interested, so that the signaling processing overhead of the application layer can be greatly reduced, the application system needs to be awakened when the broadcast signaling reaches the terminal, and the application system can enter a dormant state, thereby achieving the purpose of reducing the power consumption of the terminal.
Furthermore, the present application also provides a non-transitory computer-readable storage medium storing instructions that, when executed by a processor, cause the processor to perform the steps of the transmission method of group signaling as described above.
Further, the present application provides an electronic device comprising the non-volatile computer-readable storage medium as described above, and the processor having access to the non-volatile computer-readable storage medium.
The above description is only a preferred embodiment of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (8)
1. A method for group signaling transmission, comprising:
an application layer of a terminal sends group information of a group which the terminal is interested in and encrypted information of a broadcast signaling to a Modem of the terminal in advance;
when the Modem receives the encrypted broadcast signaling from a broadcast/multicast service center MBMS multicast channel, the Modem decrypts the broadcast signaling according to the encryption information and judges whether the decrypted broadcast signaling is the broadcast signaling of the group in which the terminal is interested according to the group information, if so, the broadcast signaling is sent to the application layer for processing, and if not, the broadcast signaling is discarded.
2. The method of claim 1, wherein the group information comprises a group identity and/or a signaling multicast Temporary Mobile Group Identity (TMGI).
3. The method of claim 1, wherein the encryption information comprises an encryption key and an encryption algorithm.
4. A transmission apparatus for group signaling, which is disposed in a terminal, comprising: a processor and a Modem, wherein,
the processor is configured to: sending the group information of the group which the terminal is interested in and the encryption information of the broadcast signaling to a Modem of the terminal under the triggering of a terminal application layer;
the Modem is used for: when receiving the encrypted broadcast signaling from the MBMS multicast channel of the broadcast/multicast service center, decrypting the broadcast signaling according to the encryption information, and judging whether the decrypted broadcast signaling is the broadcast signaling of the group in which the terminal is interested according to the group information, if so, sending the broadcast signaling to the application layer for processing, otherwise, discarding the broadcast signaling.
5. The apparatus of claim 4, wherein the group information comprises a group identity and/or a signaling multicast Temporary Mobile Group Identity (TMGI).
6. The apparatus of claim 4, wherein the encryption information comprises an encryption key and an encryption algorithm.
7. A non-transitory computer readable storage medium storing instructions which, when executed by a processor, cause the processor to perform the steps of the transmission method of group signaling according to any one of claims 1 to 3.
8. An electronic device comprising the non-volatile computer-readable storage medium of claim 7, and the processor having access to the non-volatile computer-readable storage medium.
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