CN104602201B - The method that unit/terminal receives many group-calling services simultaneously in LTE cluster private networks - Google Patents
The method that unit/terminal receives many group-calling services simultaneously in LTE cluster private networks Download PDFInfo
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- CN104602201B CN104602201B CN201510067390.9A CN201510067390A CN104602201B CN 104602201 B CN104602201 B CN 104602201B CN 201510067390 A CN201510067390 A CN 201510067390A CN 104602201 B CN104602201 B CN 104602201B
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Abstract
The invention discloses the method that unit/terminal in a kind of LTE clusters private network receives many group-calling services simultaneously, it is related to trunking communicating technology field.Different groups is exhaled data to be combined into MAC PDU and is sent to colony terminal by this method including cluster network, and different groups exhale data to be made a distinction using LCID；Colony terminal determines to whether there is private network business in correspondence subframe in paging cycle by paging processing procedure；If in the presence of colony terminal receives process by business datum and business datum is received, and the business datums that high-rise different groups of differentiation is exhaled are indicated according to different LCID by MAC module.The present invention can be good at solving a colony terminal while receiving multigroup group-calling service data problem on the premise of colony terminal complexity is not increased.
Description
Technical field
The present invention relates to a kind of trunking communicating technology field, unit/terminal is received simultaneously in particularly a kind of LTE clusters private network
The method of many group-calling services.
Background technology
The long evolving system of mobile communication is (referred to as：LTE), because it has the fine availability of frequency spectrum, and aspect group
Net and operation, in third generation partner program (referred to as：Paid much attention in 3GPP), while also having obtained carriers in the world
Support energetically, form a fine LTE industrial chain from the network equipment to terminal.
LTE clusters private network has also obtained the attention of every country, and group has specially been set up in 3 gpp and has exhaled service to enable (letter
Claim：GCSE) working group, is responsible for the standard formulation of LTE private network clusters.
In private network cluster standard formulation, several principles below Main Basiss：
First：Backward compatibility, the private network broadband cluster system based on TD-LTE is based on 3GPPR9, keeps to the backward simultaneous of R9
Hold.Under the conditions of system working frequency range is supported, 3GPP R9 and R8 terminal should be able to be in the private network broadband cluster systems based on TD-LTE
Normal in system to use data service, 3GPP R9 base station can access the private network broadband cluster system based on TD-LTE by S1 interfaces
System.
Second：Scalability, private network broadband cluster system framework and Protocol Design based on TD-LTE should possess good
Scalability, support follow-up phase function and performance enhancement, including a wide range of networking and roam, it is mutual with other private network networks
Lead to.
3rd：Modularization, under conditions of system general frame is met, system can be decomposed into multiple logic entities, and
And each logic entity is separate.Each logic entity of system can flexibly constitute actual network element.
4th：Interface opening, the private network broadband cluster system based on TD-LTE should possess good interoperability, should prop up
Hold the interoperability for the open interface that distinct device producer defines in standard, such as air interface and cluster core net relevant interface.
5th：Safety, the private network broadband cluster system based on TD-LTE should possess high-grade security, it is ensured that broadband number
According to the safety with group service.
From the above it can be seen that LTE cluster private networks are to increase the function of private network on the basis of LTE public networks to realize, and
And can support that the institute of LTE public networks is functional.
Technologically speaking, LTE clusters private network is mainly reflected in two aspects, and the pass of physical layer is the increase on one side
In the disposal ability of private network data, another is just the increase in LTE private network application flows, including LTE private network groups are exhaled, and individual calling is built
Vertical and release etc..
In terms of physical layer, LTE cluster private networks add two Radio Network Temporary Identifiers (referred to as：RNTI), wherein using
It is referred to as clustered paging RNTI (referred to as in subscriber paging：TP-RNTI), the group parsed for data exhales RNTI (referred to as：G-
RNTI)。
In LTE system, RNTI is mainly used in Physical Downlink Control Channel (referred to as：PDCCH parsing) is used, wherein
PDCCH is divided into two regions, a public search space, a terminal-specific search space.Parsing on PDCCH is related to
Terminal carries out RNTI blind check, and because terminal is related to complexity and power consumption requirements, terminal can only do a process, that is, enter
The search of public search space of row and a terminal-specific search space search.The design of PDCCH in 3GPP is former
Then, a terminal-specific search space search can only be supported.
In LTE private network system, it is to have no problem that a colony terminal, which completes one group of monitoring to exhale, that is, a collection
Group terminal is only required to carry out PDCCH blind checks using a G-RNTI.But in actual application scenarios, if a cluster is special
Net establishes multiple groups simultaneously and exhaled, and a colony terminal needs to carry out monitoring the multiple groups of business information exhaled simultaneously, and this just brings
Very big difficulty, terminal has no ability to carry out multiple different G-RNTI PDCCH search.
Equally, another reason, as a result of different G-RNTI, then terminal needs parsing in a subframe
Different grouping downlink shared channels are (referred to as：PDSCH) packet.Because in actual realization, LTE needs to support high speed number
According to transmittability, whole data path is all completed using accelerator substantially, in a subframe (the specific time is 1ms) in the time,
Terminal can not possibly handle two PDSCH packets.
The present invention is proposed aiming at there are these in current LTE clusters private network.
The content of the invention
It is an object of the invention to provide the method that unit/terminal in a kind of LTE clusters private network receives many group-calling services simultaneously,
Different groups is exhaled data combination to be sent to terminal in a MAC packet data package (MAC-PDU) by it by cluster network, no
Same group exhales data to be made a distinction using LCID, and terminal parses the packet on physical channel PDSCH by G-RNTI, is sent to
MAC module processing, the business datum that high-rise different groups are exhaled is indicated by MAC according to different LCID.
The purpose of the present invention is realized by such technical scheme, specifically includes herein below：
A kind of method that unit/terminal receives many group-calling services simultaneously in LTE clusters private network, cluster network exhales different groups
Data are combined into MAC-PDU and are sent to colony terminal, and different groups exhale data to be made a distinction using LCID；Colony terminal passes through
Paging processing procedure determines to whether there is private network business in correspondence subframe in paging cycle；If in the presence of colony terminal passes through industry
Business DRP data reception process is received to business datum, indicates that high-rise different groups of differentiation is exhaled according to different LCID by MAC module
Business datum.
Further, the paging processing procedure includes：
2-1) on colony terminal after electricity, according to the paging cycle of cluster private network, receive PDCCH physics in correspondence subframe and believe
Data on road, and blind check is carried out using TP-RNTI；
If 2-2) containing TP-RNTI blind check contents in the PDCCH, show to include cluster private network paging in the subframe
Message, while parsing PDCCH Radio Resources according to TP-RNTI, and parses corresponding PDSCH Radio Resources；
2-3) group number is exhaled to determine whether there is the private network business for needing oneself to monitor in beep-page message.
Further, the group service DRP data reception process comprises the following steps：
Blind check 3-1) is carried out to PDCCH according to the G-RNTI determined in beep-page message, judges to whether there is in correspondence subframe
Private network business datum；
If 3-2) in the presence of the Radio Resource determined according to PDCCH is parsed to specified PDSCH Radio Resources；
The PDSCH packets completed in physical layer 3-3) report to the MAC layer of higher-layer protocols, MAC module according to
3GPP functional requirement, completes transmission channel to mapping logical channels function；
If 3-4) user is provided with the group and exhales needs to answer, on the data that MAC module then parses logic channel are direct
Offer high level；
The logic channel in all PDSCH packets 3-5) is checked, a to the last logic channel inspection is finished.
Further, the parameter carried in the beep-page message includes exhaling group number, logical channel number, G-RNTI and LCID.
Further, step 2-2) middle parsing PDCCH Radio Resources, include position and the size of specific Physical Resource Block.
Further, it is described exhale data to be combined into MAC-PDU different groups method be：In network side, if there is
Exhale for multiple groups and exist simultaneously, when the MAC layer of network assembles data, different LCID will be matched somebody with somebody according to different group speechminutes,
Using the PDSCH running time-frequency resources that group exhales data block to take, colony terminal then basis are indicated in G-RNTI in PDCCH physical channels
G-RNTI carries out PDCCH parsings, interprets PDSCH data, and MAC layer formation MAC-PDU is reported to from physical layer.
Further, the PDSCH Radio Resources resolving specific method is：Physical layer receives each subframe first
The data of upper PDCCH physical channels, and G-RNTI search is carried out in the data received, determine network whether on the frame
Radio Resource mandate is carried out using G-RNTI；If it is, wireless running time-frequency resource corresponding to PDSCH is parsed from PDCCH,
That is the specific resource locations of PDSCH.
Further, the private network business datum includes speech data or application data.
Due to using above-mentioned technical proposal, the present invention has the advantage that：The present invention is not increasing colony terminal complexity
On the premise of degree, it can be good at solving a colony terminal while receiving multigroup group-calling service data problem.
Further advantage, target and the feature of the present invention will be illustrated in the following description to a certain extent, and
And to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, Huo Zheke
To be instructed from the practice of the present invention.The objects and other advantages of the present invention can be wanted by following specification, right
Structure specifically noted in book, and accompanying drawing is asked to realize and obtain.
Brief description of the drawings
In order that the object, technical solutions and advantages of the present invention are clearer, below in conjunction with accompanying drawing the present invention is made into
The detailed description of one step, wherein：
Fig. 1 receives the paging processing procedure of the method for many group-calling services for unit/terminal in LTE clusters private network of the present invention simultaneously
Flow chart of steps；
The business datum that Fig. 2 receives the method for many group-calling services for unit/terminal in LTE clusters private network of the present invention simultaneously is received
The step flow chart of process.
Embodiment
In order that the object, technical solutions and advantages of the present invention are clearer, below in conjunction with accompanying drawing the present invention is made into
The detailed description of one step.
A kind of method that unit/terminal receives many group-calling services simultaneously in LTE clusters private network, cluster network exhales different groups
Data are combined into MAC-PDU and are sent to colony terminal, and different groups exhale data to be made a distinction using LCID；Colony terminal passes through
Paging processing procedure determines to whether there is private network business in correspondence subframe in paging cycle；If in the presence of colony terminal passes through industry
Business DRP data reception process is received to data, and the industry that high-rise different groups of differentiation is exhaled are indicated according to different LCID by MAC module
Business data.
Fig. 1 is paging process steps flow chart of the invention, and reference picture 1, the paging processing procedure includes：
2-1) on colony terminal after electricity, according to the paging cycle of cluster private network, receive PDCCH physics in correspondence subframe and believe
Data on road, and blind check is carried out using TP-RNTI；
If 2-2) containing TP-RNTI blind check contents in the PDCCH, show to include cluster private network paging in the subframe
Message, while parsing PDCCH Radio Resources according to TP-RNTI, and parses corresponding PDSCH Radio Resources；
Beep-page message 2-3) is recorded, and exhales group number to determine whether there is the special of needs oneself monitoring in beep-page message
Network service.
Fig. 2 receives the step flow chart of process, the group service DRP data reception process bag for the business datum of the present invention
Include following steps：
Blind check 3-1) is carried out to PDCCH according to the G-RNTI determined in beep-page message, judges to whether there is in correspondence subframe
Private network business datum；
If 3-2) in the presence of the Radio Resource determined according to PDCCH is parsed to specified PDSCH Radio Resources；
The PDSCH packets completed in physical layer 3-3) report to the MAC layer of higher-layer protocols, MAC module according to
3GPP functional requirement, completes transmission channel to mapping logical channels function；
If 3-4) user is provided with the group and exhales needs to answer, on the data that MAC module then parses logic channel are direct
Offer high level；
The logic channel in all PDSCH packets 3-5) is checked, a to the last logic channel inspection is finished.
A colony terminal can be just realized while receiving multigroup private network business datum exhaled according to above-mentioned steps operation, and
And different groups exhale data between can be distinguish between.
The parameter carried in the beep-page message includes exhaling group number, logical channel number, G-RNTI and LCID.
Step 2-2) middle parsing PDCCH Radio Resources, include position and the size of specific Physical Resource Block.
It is described exhale data to be combined into MAC-PDU different groups method be：In network side, exhale same if there is multiple groups
When exist, when the MAC layer of network assembles data, different LCID will be matched somebody with somebody according to different group speechminutes, using G-RNTI
In the PDSCH running time-frequency resources that group exhales data block to take are indicated in PDCCH physical channels, colony terminal then carries out according to G-RNTI
PDCCH is parsed, and interprets PDSCH data, and MAC layer formation MAC-PDU is reported to from physical layer.
The PDSCH Radio Resources resolving specific method is：Physical layer receives the upper PDCCH things of each subframe first
The data of channel are managed, and G-RNTI search is carried out in the data received, determine whether network uses G- on the frame
RNTI carries out Radio Resource mandate；If it is, parsing wireless running time-frequency resource corresponding to PDSCH from PDCCH, i.e.,
The specific resource locations of PDSCH.The private network business datum includes speech data or application data.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail good embodiment, it will be understood by those within the art that, can be to skill of the invention
Art scheme is modified or equivalent substitution, and without departing from the objective and scope of the technical program, it all should cover in the present invention
Right among.
Claims (7)
1. a kind of method that unit/terminal receives many group-calling services simultaneously in LTE clusters private network, it is characterised in that：
Different groups is exhaled data to be combined into MAC-PDU and is sent to colony terminal by cluster network, and different groups exhale data to use
LCID makes a distinction；Colony terminal determines to whether there is private network industry in correspondence subframe in paging cycle by paging processing procedure
Business；If in the presence of colony terminal receives process by business datum and business datum is received, by MAC module according to difference
LCID indicate high-rise to distinguish the different groups of business datums exhaled；
It is described exhale data to be combined into MAC-PDU different groups method be：
In network side, exhale and exist simultaneously if there is multiple groups, will be according to difference when the MAC layer of network assembles data
Group speechminute match somebody with somebody different LCID, using indicated in G-RNTI in PDCCH physical channels group exhale data block take PDSCH when
Frequency resource, colony terminal then carries out PDCCH parsings according to G-RNTI, interprets PDSCH data, MAC layer is reported to from physical layer
Form MAC-PDU.
2. the method that unit/terminal receives many group-calling services simultaneously in a kind of LTE clusters private network according to claim 1, it is special
Levy and be：The paging processing procedure includes：
2-1) on colony terminal after electricity, according to the paging cycle of cluster private network, receive in correspondence subframe on PDCCH physical channels
Data, and blind check is carried out using TP-RNTI；
If 2-2) containing TP-RNTI blind check contents in the PDCCH, show that including cluster private network paging in the subframe disappears
Breath, while parsing PDCCH Radio Resources according to TP-RNTI, and parses corresponding PDSCH Radio Resources；
2-3) group number is exhaled to determine whether there is the private network business for needing oneself to monitor in beep-page message.
3. the method that unit/terminal receives many group-calling services simultaneously in a kind of LTE clusters private network according to claim 1, it is special
Levy and be：The group service DRP data reception process comprises the following steps：
Blind check 3-1) is carried out to PDCCH according to the G-RNTI determined in beep-page message, judges to whether there is private network in correspondence subframe
Business datum；
If 3-2) in the presence of the Radio Resource determined according to PDCCH is parsed to specified PDSCH Radio Resources；
The PDSCH packets completed in physical layer 3-3) are reported to the MAC layer of higher-layer protocols, MAC module is according to 3GPP's
Functional requirement, completes transmission channel to mapping logical channels function；
If 3-4) user is provided with the group and exhales needs to answer, the data that MAC module then parses logic channel are directly reported
It is high-rise；
The logic channel in all PDSCH packets 3-5) is checked, a to the last logic channel inspection is finished.
4. the method that unit/terminal receives many group-calling services simultaneously in a kind of LTE clusters private network according to claim 1, it is special
Levy and be：The parameter carried in the beep-page message includes exhaling group number, logical channel number, G-RNTI and LCID.
5. the method that unit/terminal receives many group-calling services simultaneously in a kind of LTE clusters private network according to claim 2, it is special
Levy and be：Step 2-2) middle parsing PDCCH Radio Resources, include position and the size of specific Physical Resource Block.
6. the method that unit/terminal receives many group-calling services simultaneously in a kind of LTE clusters private network according to claim 1, it is special
Levy and be：The PDSCH Radio Resources resolving specific method is：
Physical layer receives the data of the upper PDCCH physical channels of each subframe first, and carries out in the data received G-
RNTI is searched for, and determines whether network uses G-RNTI to carry out Radio Resource mandate on the frame；If it is, being solved from PDCCH
Separate out the corresponding wireless running time-frequency resources of PDSCH, the i.e. specific resource locations of PDSCH.
7. the method that unit/terminal receives many group-calling services simultaneously in a kind of LTE clusters private network according to claim 1, it is special
Levy and be：The private network business datum includes speech data or application data.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101047881A (en) * | 2006-03-30 | 2007-10-03 | 华为技术有限公司 | Method and system for providing multicast bear |
| CN102958047A (en) * | 2011-08-26 | 2013-03-06 | 普天信息技术研究院有限公司 | User equipment downlink distributing and receiving method for broadband cluster communication system |
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| CN103200530B (en) * | 2012-01-05 | 2016-12-14 | 华为技术有限公司 | A kind of method and device realizing cluster multi call business |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101047881A (en) * | 2006-03-30 | 2007-10-03 | 华为技术有限公司 | Method and system for providing multicast bear |
| CN102958047A (en) * | 2011-08-26 | 2013-03-06 | 普天信息技术研究院有限公司 | User equipment downlink distributing and receiving method for broadband cluster communication system |
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