CN110662183B - Signaling sending method and device based on Btrunc - Google Patents
Signaling sending method and device based on Btrunc Download PDFInfo
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- CN110662183B CN110662183B CN201810692294.7A CN201810692294A CN110662183B CN 110662183 B CN110662183 B CN 110662183B CN 201810692294 A CN201810692294 A CN 201810692294A CN 110662183 B CN110662183 B CN 110662183B
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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
- H04W4/10—Push-to-Talk [PTT] or Push-On-Call services
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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
Abstract
The application provides a signaling sending method and device based on Btrrun, and the method comprises the following steps: the base station periodically transmits the multicast paging message by taking a first preset period as a period; and if the multicast paging message is issued in the current subframe, triggering the issue of the multicast establishing message corresponding to the multicast user. The method can reduce the multicast receiving time delay of the terminal.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a signaling sending method and device based on Btrrun.
Background
Broadband Trunking Communication (broadband Trunking Communication, Btrunc) is a TD-LTE-based "LTE digital transmission + Trunking voice Communication" private network broadband Trunking system standard established by the broadband Trunking industry alliance organization, and the protocol mainly standardizes the functions of broadband Trunking services such as multicast service voice, multicast service video, and multimedia multicast service scheduling, and has the characteristics of flexible bandwidth, high spectral efficiency, low time delay, and high reliability, and can meet the requirements of professional users on multicast service voice, broadband data, emergency command scheduling, and the like.
The multicast service belongs to a typical service of the Btrunc network, and the base station broadcasts multicast service data to multicast users in the scene.
The multicast service establishment process comprises the following steps:
the base station periodically issues multicast paging messages and multicast establishment messages, wherein the multicast paging messages belong to public signaling, the multicast establishment messages belong to multicast signaling, and the multicast paging messages and the multicast establishment messages are respectively and independently issued by the base station periodically.
The terminal can establish the multicast context resource and receive the multicast service only after receiving the multicast paging message and the multicast establishing message, so the maximum multicast establishing time delay is equal to the sum of the multicast paging message sending period and the multicast establishing message sending period.
Disclosure of Invention
In view of this, the present application provides a signaling sending method and apparatus based on Btrunc, which can reduce the multicast receiving delay of a terminal.
In order to solve the technical problem, the technical scheme of the application is realized as follows:
a signaling sending method based on broadband trunking communication Btrrun comprises the following steps:
the base station periodically transmits the multicast paging message by taking a first preset period as a period;
and if the multicast paging message is issued in the current subframe, triggering the issue of the multicast establishing message corresponding to the multicast user.
A signaling transmission apparatus based on broadband trunking communication Btrunc, the apparatus comprising: the system comprises a detection unit and a sending unit;
the detection unit is used for detecting whether the current subframe has the issue of the multicast paging message;
the issuing unit is used for periodically issuing the multicast paging message by taking a first preset period as a period; and if the detection unit detects that the multicast paging message is issued in the current subframe, triggering the issue of the multicast establishing message corresponding to the multicast user.
According to the technical scheme, the multicast receiving time delay of the terminal can be reduced by carrying out synchronous periodic transmission on the common signaling and the multicast signaling.
Drawings
Fig. 1 is a schematic flow chart of signaling transmission based on Btrunc in the embodiment of the present application;
fig. 2 is a schematic flow chart illustrating simultaneous transmission of multiple types of multicast signaling in the second embodiment of the present application;
fig. 3 is a schematic structural diagram of an apparatus applied to the above-described technology in the embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly apparent, the technical solutions of the present invention are described in detail below with reference to the accompanying drawings and examples.
The embodiment of the application provides a signaling sending method based on Btrrun, and by carrying out synchronous periodic sending on a public signaling and a multicast signaling, the multicast receiving time delay of a terminal can be reduced.
Example one
With reference to the accompanying drawings, a process of implementing Btrunc-based signaling in the first embodiment of the present application is described in detail.
Referring to fig. 1, fig. 1 is a schematic flowchart of signaling transmission based on Btrunc in the embodiment of the present application. The method comprises the following specific steps:
In the embodiment of the present application, the first preset period for issuing the multicast paging message is configured according to actual needs, or the first preset period may be configured according to a period for issuing the multicast paging message in the existing implementation, where a specific value of the first preset period is not limited.
In the embodiment of the present application, whether the multicast paging message is issued in the current subframe is detected according to the existing implementation, which is not limited herein.
If the multicast paging message is issued in the current subframe, the multicast establishment message corresponding to the multicast user is immediately triggered to be issued so as to realize the synchronous transmission of the multicast paging message (common signaling) and the multicast establishment message (multicast signaling).
Therefore, after receiving the multicast paging message, the cluster terminal receives the multicast establishing message in time, performs multicast context resource and receives multicast service, so that the time delay of multicast establishment can be almost ignored, and further reduces the multicast receiving time delay of the cluster terminal.
In this embodiment, the present application further provides another condition for triggering the sending of the group establishment message, which is specifically as follows:
and if the base station determines that the group establishment message of the group user is updated or newly established, triggering the group establishment message to be issued.
If the group establishment message is updated and newly established, the group establishment message is immediately triggered to be issued, so that the terminal can be ensured to receive the group establishment message in time for subsequent processing.
In the embodiment of the present application, the specific process of determining that the group establishment message is updated or newly created may be implemented according to the prior art, and is not limited herein.
Example two
At present, for a multicast user, a multicast establishing message, a multicast periodic direct transmission message and a multicast neighbor message exist at the same time, the three types of messages all belong to multicast signaling, a base station respectively and independently periodically issues the three types of multicast signaling, and the three types of multicast messages respectively consume PDCCH (physical Downlink control channel) and PDSCH (physical Downlink shared channel) resources and can cause empty resource waste. The specific implementation process is as follows:
referring to fig. 2, fig. 2 is a schematic diagram of a process for simultaneously sending multiple types of multicast signaling in the second embodiment of the present application. The method comprises the following steps:
In the embodiment of the present application, combining the multicast setup message, the multicast periodic direct transfer message, and the multicast neighbor message means that three messages are combined into one data block and not sent at the same time, instead of being combined into one message.
After the three messages are combined, the three messages are sent in a fixed period, namely the three messages are sent at the same time in the same period; the whole process further realizes the transmission of the three types of messages in the same period and at the same time.
In the second embodiment of the present application, on the premise of periodically sending the three types of messages, two cases of triggering additional sending of the three types of messages are also given, specifically:
first, a large-small cycle mechanism is adopted, i.e., the second cycle is a large cycle, and the third cycle is a small cycle.
When any one of the multicast establishing message, the multicast periodic direct transmission message and the multicast neighbor message is newly established or updated, the multicast establishing message, the multicast periodic direct transmission message and the multicast neighbor message which are combined for N times are issued to the cluster terminal by taking a third preset period as a period.
And when the N times of sending is finished by taking a third preset period as a period, switching to sending the combined multicast establishing message, the multicast period direct transmission message and the multicast neighbor message to the cluster terminal by taking a second preset period as a period, wherein the second preset period is greater than the third preset period, and N is an integer greater than 0.
The second preset period, the third preset period, and N are configured according to actual needs, and may be fixedly configured by a base station interface in specific implementation, but are not limited to this configuration.
Secondly, if the current subframe is detected to have the issue of the multicast paging message, the issue of the combined multicast establishing message, the multicast periodic direct transmission message and the multicast neighbor message is triggered;
the trigger realizes that the sending time and the sending period of the combined multicast establishing message, the multicast periodic direct transmission message and the multicast adjacent message are consistent with the sending time and the sending period of the group paging message.
When any one of the multicast establishing message, the multicast periodic direct transmission message and the multicast neighbor message is newly established or updated, the message which is newly established or updated is triggered to be issued.
The triggering realizes that when any message in the three types of messages is newly built or updated, the message is immediately and independently triggered to be issued, and the terminal is ensured to receive the corresponding message in time.
In the embodiment, the periodic synchronous issuing is performed for the three types of multicast signaling (multicast establishing message, multicast periodic direct transmission message and multicast neighbor message), so that the PDCCH resource can be saved.
The application is based on the same inventive concept, and also provides a signaling sending device based on Btrrun. Referring to fig. 3, fig. 3 is a schematic structural diagram of an apparatus applied to the above technology in the embodiment of the present application. The device includes: a detection unit 301 and a sending unit 302;
a detecting unit 301, configured to detect whether a multicast paging message is issued in a current subframe;
an issuing unit 302, configured to periodically issue a multicast paging message with a first preset period as a period; if the detection unit 301 detects that there is an issue of a multicast paging message in the current subframe, it triggers an issue of a multicast setup message corresponding to a multicast user.
Preferably, the apparatus further comprises: a determination unit 303;
a determining unit 303, configured to determine whether a group establishment message of a group user is updated or newly created;
the issuing unit 302 is further configured to trigger issuing of the group establishment message if the determining unit 303 determines that the group establishment message of the group user is updated or newly created.
Preferably, the apparatus further comprises: a merging unit 304;
a merging unit 304, configured to merge multicast establishing messages, multicast periodic direct transmission messages, and multicast neighbor messages that need to be periodically issued by each multicast user;
the issuing unit 302 is further configured to periodically issue the multicast setup message, the multicast periodic direct transmission message, and the multicast neighbor message, which are merged by the merging unit 304, to the cluster terminal with a second preset period as a period.
Preferably, the apparatus further comprises: a determination unit 303;
a determining unit 303, configured to determine whether a multicast setup message, a multicast periodic direct transmission message, and a multicast neighbor message are newly created or updated;
the issuing unit 302 is further configured to issue the multicast establishing message, the multicast periodic direct transmission message, and the multicast neighbor message after N times of combination to the cluster terminal with a third preset period as a period when the determining unit 303 determines that any one of the multicast establishing message, the multicast periodic direct transmission message, and the multicast neighbor message is newly created or updated; and when the N times of sending is finished by taking a third preset period as a period, switching to sending the combined multicast establishing message, the multicast period direct transmission message and the multicast neighbor message to the cluster terminal by taking a second preset period as a period, wherein the second preset period is greater than the third preset period.
Preferably, the apparatus further comprises: a determination unit 303;
a determining unit 303, configured to determine whether a multicast setup message, a multicast periodic direct transmission message, and a multicast neighbor message are newly created or updated;
the issuing unit 302 is further configured to trigger issuing of the combined multicast setup message, multicast periodic direct transmission message, and multicast neighbor message if the detecting unit 301 detects that there is issuing of the multicast paging message in the current subframe; when the determining unit 303 determines that any one of the multicast establishing message, the multicast periodic direct transmission message, and the multicast neighbor message is newly created or updated, it triggers the issuing of the newly created or updated message.
The units of the above embodiments may be integrated into one body, or may be separately deployed; may be combined into one unit or further divided into a plurality of sub-units.
In summary, the present application enables the terminal to establish the multicast context resource almost without delay by sending the common signaling and the multicast signaling in a synchronous cycle, so as to reduce the multicast receiving delay of the terminal.
The method and the device also carry out periodic synchronous issuing aiming at the three types of multicast signaling (multicast establishing message, multicast periodic direct transmission message and multicast adjacent region message), and can save PDCCH resources.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. A signaling sending method based on broadband trunking communication Btrrun is characterized by comprising the following steps:
the base station periodically transmits the multicast paging message by taking a first preset period as a period;
if the current subframe is detected to have the issue of the multicast paging message, the issue of the multicast establishing message corresponding to the multicast user is triggered;
wherein the method further comprises:
and combining the multicast establishing message, the multicast periodic direct transmission message and the multicast neighbor message which are required to be periodically transmitted by each multicast user, and periodically transmitting the messages to the cluster terminal by taking a second preset period as a period.
2. The method of claim 1, further comprising:
and if the group establishment message of the group user is determined to be updated or newly established, triggering the group establishment message to be issued.
3. The method of claim 1, further comprising:
when any one of the multicast establishing message, the multicast periodic direct transmission message and the multicast neighbor message is newly established or updated, the multicast establishing message, the multicast periodic direct transmission message and the multicast neighbor message which are combined for N times are issued to the cluster terminal by taking a third preset period as a period;
and when the N times of sending is finished by taking a third preset period as a period, switching to sending the combined multicast establishing message, the multicast period direct transmission message and the multicast neighbor message to the cluster terminal by taking a second preset period as a period, wherein the second preset period is greater than the third preset period.
4. The method of claim 1, further comprising:
if the sending of the multicast paging message is detected to exist in the current subframe, sending of the combined multicast establishing message, the multicast periodic direct transmission message and the multicast neighbor message is triggered;
when any one of the multicast establishing message, the multicast periodic direct transmission message and the multicast neighbor message is newly established or updated, the message which is newly established or updated is triggered to be issued.
5. A signaling device based on broadband trunking communication Btrrun is characterized in that the device comprises: the system comprises a detection unit and a sending unit;
the detection unit is used for detecting whether the current subframe has the issue of the multicast paging message;
the issuing unit is used for periodically issuing the multicast paging message by taking a first preset period as a period; if the detection unit detects that the multicast paging message is issued in the current subframe, the detection unit triggers the issuing of the multicast establishing message corresponding to the multicast user;
wherein the apparatus further comprises: a merging unit;
the merging unit is used for merging the multicast establishing message, the multicast periodic direct transmission message and the multicast neighbor message which are required to be periodically issued by each multicast user;
and the issuing unit is further used for periodically issuing the multicast establishing message, the multicast periodic direct transmission message and the multicast neighbor message which are combined by the combining unit to the cluster terminal by taking a second preset period as a period.
6. The apparatus of claim 5, further comprising: a determination unit;
the determining unit is used for determining whether the group establishing message of the group user is updated or newly established;
the issuing unit is further configured to trigger issuing of the group establishment message if the determining unit determines that the group establishment message of the group user is updated or newly created.
7. The apparatus of claim 5, further comprising: a determination unit;
the determining unit is used for determining whether the multicast establishing message, the multicast periodic direct transmission message and the multicast neighbor message are newly established or updated;
the issuing unit is further configured to issue the multicast establishing message, the multicast periodic direct transmission message and the multicast neighbor message after N times of combination to the cluster terminal with a third preset period as a period when the determining unit determines that any one of the multicast establishing message, the multicast periodic direct transmission message and the multicast neighbor message is newly created or updated; and when the N times of sending is finished by taking a third preset period as a period, switching to sending the combined multicast establishing message, the multicast period direct transmission message and the multicast neighbor message to the cluster terminal by taking a second preset period as a period, wherein the second preset period is greater than the third preset period.
8. The apparatus of claim 5, further comprising: a determination unit;
the determining unit is used for determining whether the multicast establishing message, the multicast periodic direct transmission message and the multicast neighbor message are newly established or updated;
the issuing unit is further configured to trigger issuing of the combined multicast setup message, multicast periodic direct transmission message and multicast neighbor message if the detecting unit detects that the current subframe has an issue of the multicast paging message; when the determining unit determines that any one of the multicast establishing message, the multicast periodic direct transmission message and the multicast neighbor message is newly established or updated, the determining unit triggers the issuing of the newly established or updated message.
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