CN106303977A - The method for releasing resource of TD-LTE cluster multi call, base station and UE - Google Patents
The method for releasing resource of TD-LTE cluster multi call, base station and UE Download PDFInfo
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- CN106303977A CN106303977A CN201510244070.6A CN201510244070A CN106303977A CN 106303977 A CN106303977 A CN 106303977A CN 201510244070 A CN201510244070 A CN 201510244070A CN 106303977 A CN106303977 A CN 106303977A
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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
Abstract
The invention provides method for releasing resource, base station and the UE of a kind of TD-LTE cluster multi call, the method includes: judge the release cause of the half-persistence scheduling resources of cluster multi call；When the speech business that described release cause is described cluster multi call is forwarded to quiet period by the phase of activation, the half-persistence scheduling resources release information being carried on PDCCH is sent to UE, when described release cause is cluster multi call release, exhale release message to UE signalling of bouquet group.The present invention uses different resource release information according to the difference of the release cause of cluster multi call half-persistence scheduling resources, and then reduces the PDCCH expense of semi-persistent scheduling cluster multi call.
Description
Technical field
The present invention relates to network communication technology field, particularly relate to a kind of TD-LTE cluster multi call
Method for releasing resource, base station and UE.
Background technology
Along with socioeconomic fast development and the changes in demand of industry customer, have big bandwidth,
Two-forty, full IP, efficiently commander control and the timesharing Long Term Evolution of real-time response ability
(TD-LTE, Time Division Long Term Evolution) broadband cluster will lead cluster to lead to
Letter enters the brand-new epoch.TD-LTE broadband cluster communication system not only can support TD-LTE
The various multimedia services of mobile communication system self, and baseset groupcall industry can be provided
Business and Cluster Multimedia business, as voice group call service, voice individual calling, visual group exhale, visually single
Exhale, broadcast & call, real-time video transmission etc..
Private network wideband multimedia Clustering is combined closely with sector application, promotes TD-LTE width
Band trunked communication system the most constantly improves and fast-developing.CCSA
(CCSA, China Communications Standards Association) has dominated
TD-LTE broadband trunking communication industry standard, this is also domestic based on 4G technological cluster
A collection of industry standard.Cluster multi call business is a kind of point-to-multipoint business, in cluster private network
Play huge effect.In the private network cluster standard of CCSA, cluster multi call can use and partly hold
Continuous scheduling (SPS, Semi-Persistent Scheduling).SPS for cluster multi call
Activate and release can use Physical Downlink Control Channel (PDCCH, Physical Downlink
Control Channel) indicate.PDCCH for cluster multi call semi-continuous scheduling
Confirmation is defined as: when only meeting following condition, and UE confirms a semi-continuous tune of cluster multi call
Degree distribution PDCCH:
The CRC parity check bit semi-continuous scheduling group wireless network of-PDCCH payload faces
Time mark (G-RNTI/SPS G-RNTI, Group Radio Network Temporary
Identifier/SPS Group Radio Network Temporary Identifier) scramble.
-new data instructions field is set to " 0 ".
If each field configures according to table 1 or table 2 in DCI1A, then realize PDCCH
Confirmation.
If completing to confirm, the DCI information that UE should be considered as receiving mutually is effective half
Continuous dispatching activates or release.
The PDCCH that table 1 semi-continuous scheduling activates confirms that special field is arranged
| DCI format 1A | |
| HARQ process number | It is set to ' 0000 ' |
| Modulation and coded system | Highest significant position (MSB) is set to ' 0 ' |
| Redundancy versions | It is set to ' 00 ' |
The PDCCH of table 2 semi-continuous scheduling release confirms that special field is arranged
| DCI format 1A | |
| HARQ process number | It is set to ' 0000 ' |
| Modulation and coded system | It is set to ' 11111 ' |
| Redundancy versions | It is set to ' 00 ' |
| Resource block assignments | It is set to complete ' 1 ' |
For TD-LTE trunked communication system, the release of cluster multi call SPS resource uses
ENode B sends the PDCCH order (being shown in Table 2) of special format, and UE receives cluster multi call
After PDCCH release command, UE discharges cluster multi call SPS resource, but UE will not reply
ACK。
For cluster multi call owing to not having feedback mechanism, base station cannot determine cluster multi call business half
Persistent scheduling resource the most successfully discharges.If system is not in UE semi-continuous scheduling collection group
Discharging its resource or release failure after exhaling business, UE may proceed at the resource-niche configured
Put reception data, the power wastage of UE can be brought.If base station sends the most semi-continuous tune
The PDCCH of degree release, can be greatly increased PDCCH expense, also cannot guarantee to collect in group
All UE discharge successfully.It addition, public search space natively have public information (broadcast,
Paging, Stochastic accessing etc.) expense, due to the G-RNTI/SPS G-RNTI to cluster multi call
The regulation of the used PDCCH search space of PDCCH of scrambling so that public search space
PDCCH resource is more nervous, may result in and only uses the group of public search space to exhale because of nothing
Method sends DCI and can not get dispatching timely.If running into the situation of group-calling service burst, existing
As meeting is even more serious.So, how to reduce PDCCH control the expense of signaling and guarantee
The problem that the group-calling service half-persistence scheduling resources release of UE becomes urgent solution.
Summary of the invention
In view of the above problems, it is proposed that the present invention in case provide one overcome the problems referred to above or
The resource of the TD-LTE cluster multi call solving at least in part or slowing down the problems referred to above discharges
Method, base station and UE.
According to an aspect of the invention, it is provided the resource of a kind of TD-LTE cluster multi call is released
Putting method, the method includes:
Judge the release cause of the half-persistence scheduling resources of cluster multi call；
When the speech business that described release cause is described cluster multi call was forwarded to mourn in silence by the phase of activation
During the phase, send the half-persistence scheduling resources release information being carried on PDCCH to UE, when
When described release cause is cluster multi call release, exhale release message to UE signalling of bouquet group.
Optionally, described method also includes:
When the voice bearer release that described release cause is described cluster multi call, send out to UE
Send the half-persistence scheduling resources release information being carried on PDCCH.
Optionally, the release cause of the half-persistence scheduling resources of described judgement cluster multi call, including:
Judge whether to receive cluster multi call release instruction, if, it is determined that described release cause is
Cluster multi call discharges；
Judge whether to receive the voice bearer instruction of release cluster multi call, if, it is determined that described
Release cause is the voice bearer release of cluster multi call；
Judge whether the speech business of described cluster multi call meets the condition entering quiet period, if
It is, it is determined that described release cause is that the speech business of cluster multi call was forwarded to mourn in silence by the phase of activation
Phase.
Optionally, described method also includes:
Determine whether described cluster multi call exhales speech data by transmission group at present sub-frame；
When transmission group is exhaled speech data at present sub-frame by described cluster multi call, it is judged that described collection
Whether the wireless spread-spectrum technology caching of group-calling is empty, the most then perform to monitor described collection group
Whether the speech business exhaled is forwarded to the step of quiet period by the activation phase；Otherwise, according to described cluster
The half-persistence scheduling resources that group is exhaled transmits described new data.
According to another aspect of the present invention, it is provided that a kind of base station, this base station includes:
Judging unit, for judging the release cause of the half-persistence scheduling resources of cluster multi call；
Transmitting element, for when the speech business that described release cause is described cluster multi call is by swashing
When current forwards quiet period to, or the voice bearer release that described release cause is described cluster multi call
Time, the half-persistence scheduling resources release information being carried on PDCCH is sent to UE；
Described transmitting element, is additionally operable to when described release cause is cluster multi call release, to
UE signalling of bouquet group exhales release message.
According to a further aspect of the invention, it is provided that the resource of a kind of TD-LTE cluster multi call
Method for releasing, the method includes:
When the half-persistence scheduling resources being carried on PDCCH receiving base station eNB transmission is released
When putting information, the half-persistence scheduling resources that release current cluster group is exhaled, and remove configured institute
State the descending distribution of the semi-continuous scheduling of cluster multi call；
When receiving the cluster multi call release message that described eNB sends, discharge described collection group
The half-persistence scheduling resources exhaled and the company-data radio bearer of described cluster multi call, stop prison
The interim of described cluster multi call is listened to control channel and group service channel.
Optionally, described method also includes:
When the physical down control receiving the cluster multi call semi-continuous scheduling activation that base station eNB sends
During channel PDCCH processed, start preset timer, it is judged that whether receive in presetting timing
The half-persistence scheduling resources being carried on the PDCCH release information sent to base station eNB；
If not receiving, in presetting timing, the half-persistence scheduling resources being carried on PDCCH to release
Put information, then the half-persistence scheduling resources that release current cluster group is exhaled, and remove configured
The descending distribution of the semi-continuous scheduling of described cluster multi call；
If receiving, in presetting timing, the half-persistence scheduling resources being carried on PDCCH to release
Put information, then terminate described preset timer.
Optionally, described method also includes:
If the semi-continuous scheduling money being carried on PDCCH described in receiving in described Preset Time
During the control information of the described cluster multi call outside source release information, restart described presetting time
Device.
According to a further aspect of the invention, it is provided that a kind of user equipment (UE), this UE bag
Include:
Receive unit, for receive base station eNB send be carried on PDCCH partly hold
Continuous scheduling resource release information, or cluster multi call release message；
Resource releasing unit, for when receive base station eNB send be carried on PDCCH
Half-persistence scheduling resources release information time, release current cluster group exhale semi-continuous scheduling money
Source, and remove the descending distribution of the semi-continuous scheduling of configured described cluster multi call；
Described resource releasing unit, is additionally operable to the cluster multi call when receiving described eNB transmission and releases
When putting message, discharge the half-persistence scheduling resources of described cluster multi call and described cluster multi call
Company-data radio bearer；
Monitor control unit, for when receiving the cluster multi call release message that described eNB sends
Time, cease listening for the interim of described cluster multi call and control channel and group service channel.
Optionally, described subscriber equipment also includes:
Timing unit, for swashing when the cluster multi call semi-continuous scheduling receiving base station eNB transmission
During the physical downlink control channel PDCCH lived, start preset timer and carry out timing；
Whether judging unit, receive in being used for judging to preset timing and be carried on PDCCH
Half-persistence scheduling resources release information；
Described resource releasing unit, is additionally operable to not receive in presetting timing be carried on
When half-persistence scheduling resources on PDCCH discharges information, what release current cluster group was exhaled partly holds
Continuous scheduling resource, and remove descending point of semi-continuous scheduling of configured described cluster multi call
Join；
Described timing unit, is carried on PDCCH if receiving in being additionally operable to preset timing
Half-persistence scheduling resources release information time, terminate described preset timer and carry out timing；
Described timing unit, is additionally operable to described in receiving in described Preset Time be carried on
The control letter of the described cluster multi call outside half-persistence scheduling resources release information on PDCCH
During breath, restart described preset timer and carry out timing.
The invention have the benefit that
The method for releasing resource of TD-LTE cluster multi call, base station and the UE that the present invention provides,
Release according to cluster multi call half-persistence scheduling resources uses different because release cause is different
Method for releasing resource, when cluster multi call speech business is forwarded to quiet period by the phase of activation, group is exhaled
Half-persistence scheduling resources be released through eNode B send be carried on PDCCH partly hold
Continuous scheduling resource release information, when cluster multi call discharges, by eNode B signalling of bouquet
Group is local release cluster multi call semi-continuous scheduling money after exhaling release message, UE to receive this message
Source, eNode B need not send, to UE, the half-persistence scheduling resources being carried on PDCCH
Release information, and then reduce the PDCCH expense of semi-persistent scheduling cluster multi call.
Accompanying drawing explanation
By reading the detailed description of hereafter preferred implementation, various other advantage and benefit
Those of ordinary skill in the art be will be clear from understanding.Accompanying drawing is only used for illustrating and is preferable to carry out
The purpose of mode, and it is not considered as limitation of the present invention.And in whole accompanying drawing, use
Identical reference marks represents identical parts.In the accompanying drawings:
Fig. 1 is the resource release side of a kind of TD-LTE cluster multi call that the embodiment of the present invention 1 proposes
The flow chart of method；
Fig. 2 is the resource release side of a kind of TD-LTE cluster multi call that the embodiment of the present invention 2 proposes
The flow chart of method；
Fig. 3 is the group-calling service half-persistence scheduling resources of the scheduler that the embodiment of the present invention 2 proposes
The concrete process chart of release；
Fig. 4 is the structured flowchart of a kind of base station that the embodiment of the present invention 3 proposes；
Fig. 5 is the resource release side of a kind of TD-LTE cluster multi call that the embodiment of the present invention 4 proposes
The flow chart of method；
Fig. 6 is the resource release side of a kind of TD-LTE cluster multi call that the embodiment of the present invention 5 proposes
The flow chart of method；
Fig. 7 is the structured flowchart of a kind of subscriber equipment that the embodiment of the present invention 6 proposes.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the accompanying drawings
Going out, the most same or similar label represents same or similar element or has phase
With or the element of similar functions.The embodiment described below with reference to accompanying drawing is exemplary,
It is only used for explaining the present invention, and is not construed as limiting the claims.
Those skilled in the art of the present technique are appreciated that unless expressly stated, odd number used herein
Form " one ", " one ", " described " and " being somebody's turn to do " may also comprise plural form.Should manage further
Solving, the wording used in the description of the present invention " includes " referring to existing described feature, whole
Number, step, operation, element and/or assembly, but it is not excluded that existence or add one or
Other features multiple, integer, step, operation, element, assembly and/or their group.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, used herein all
Term (includes technical term and scientific terminology), and have with art of the present invention is common
Technical staff is commonly understood by identical meaning.Should also be understood that in such as general dictionary
Those terms of definition, it should be understood that have and the meaning one in the context of prior art
The meaning caused, and unless by specific definitions, otherwise will not be with idealization or the most formal containing
Justice is explained.
In LTE system, the release of SPS resource has implicit expression release and two kinds of sides of explicit release
Formula.Implicit expression release is only applied to up, when eNode B detects continuous multiple MAC PDU
In when not comprising MAC SDU, SPS resource will be discharged.Explicit release both can be applicable to
Up also apply be applicable to descending, by eNode B send special format PDCCH, notify UE
Discharge current SPS resource.In order to strengthen its reliability, when UE receives PDCCH release
After order, UE discharges and successfully can reply ACK.Different from LTE system, for TD-LTE
For trunked communication system, after UE receives cluster multi call PDCCH release command, UE discharges
Cluster multi call SPS resource, but UE will not reply ACK.
Therefore, for cluster multi call owing to not having feedback mechanism, base station cannot determine cluster multi call
Business half-persistence scheduling resources the most successfully discharges.If system is not at UE semi-continuous scheduling
Discharging its resource or release failure after cluster multi call business, UE may proceed to configuring
Receive data on resource location, the power wastage of UE can be brought.If base station sends repeatedly partly
The PDCCH of continuous dispatching release, can be greatly increased PDCCH expense, also cannot guarantee collection
In group, all UE discharge successfully.
PDCCH search space (PDCCH Search Spare) is that terminal carries out PDCCH
The CCE resource collection of blind check, public search space defined in LTE standard and UE are exclusive
Search volume.The private network cluster standard of CCSA is replenished regulations the group of PDCCH on this basis
Group dedicated search space.The private network cluster standard of CCSA also defines two classes G-RNTI
The terminal of PDCCH blind check ability.For G-RNTI PDCCH blind check capability class 1 terminal
It is defined as: support in a descending sub frame at PDCCH public space and UE private space
Inside carry out C-RNTI/SPS C-RNTI/Temporary C-RNTI blind check, and support simultaneously
G-RNTI/SPS G-RNTI blind check is carried out in PDCCH public space and group's private space
Terminal.G-RNTI PDCCH blind check capability class 2 terminal is defined as: at one
Descending sub frame is supported carry out in PDCCH public space and UE private space
C-RNTI/SPS C-RNTI/Temporary C-RNTI blind check, and support at PDCCH simultaneously
In public space but not support to carry out G-RNTI/SPS G-RNTI in group's private space blind
The terminal of inspection.
In order to ensure that G-RNTI PDCCH blind check capability class 2 terminal can connect at RRC
Receiving cluster multi call during state, private network cluster standard defines when base station side MAC layer judgement group
The called subscriber having G-RNTI PDCCH blind check capability class 2 in exhaling is RRC connected state
Time, then the G-RNTI exhaled this group dispatches in PDCCH public space.Meanwhile, also advise
The fixed first time paging exhaled for group, base station is a base station initiated timing after issuing clustering paging message
Device (is set to 300ms), and the G-RNTI exhaled this group in the front base station of this timer expiry is placed on
Scheduling in public space.G-RNTI PDCCH blind check capability class 2 terminal receives cluster and seeks
Exhale message, as being in RRC connected state then by G-RNTI MAC CE reporting ability.Should
Timer expiry and endless report only supports public space, and the group search volume of base station is variable
For public and group's private space.Otherwise base station should keep the G-RNTI exhaling this group to be placed on public affairs
Scheduling in cospace.
Public search space is that in community, all terminals are shared, first from a subframe
CCE starts, totally 16 CCE.Candidate's CCE polymerization grade of public search space is 4
With 8.It is to say, use public search space to send PDCCH in a descending sub frame
Number is: be that 4 calculating have 4 DCI by CCE polymerization grade, by CCE polymerization grade is
8 calculate only 2 DCI.It addition, agreement it further provides for: SI-RNTI, P-RNTI, RA-RNTI,
The PDCCH of TPC-PUCCH-RNTI, TPC-PUSCH-RNTI only uses common search
Space, the PDCCH of clustered paging TP-RNTI the most only uses public search space.
Visible, due to the PDCCH institute that the G-RNTI/SPS G-RNTI of cluster multi call is scrambled
Use the regulation of PDCCH search space so that public search space PDCCH resource is more stepped up
, the group that may result in only use public search space is exhaled and be can not get because sending DCI
Dispatch timely.If running into the situation of group-calling service burst, phenomenon can be even more serious.
For above-mentioned technical problem, the present invention proposes the resource of a kind of TD-LTE cluster multi call
Method for releasing, base station and for equipment, control the expense and really of signaling reducing PDCCH
Protect the group-calling service half-persistence scheduling resources release of UE.
Fig. 1 shows the resource release side of a kind of TD-LTE cluster multi call of the embodiment of the present invention
The flow chart of method.
With reference to Fig. 1, the resource release of the TD-LTE cluster multi call that the embodiment of the present invention proposes
Method includes:
S11, judge the release cause of the half-persistence scheduling resources of cluster multi call；
S12, forwarded to by the phase of activation when the speech business that described release cause is described cluster multi call
During quiet period, send the half-persistence scheduling resources release information being carried on PDCCH to UE,
When described release cause is cluster multi call release, exhale release message to UE signalling of bouquet group.
Further, the resource release of the TD-LTE cluster multi call that the embodiment of the present invention proposes
Method also includes:
When the voice bearer release that described release cause is described cluster multi call, send out to UE
Send the half-persistence scheduling resources release information being carried on PDCCH.
Wherein, described step S11 judges that the release of half-persistence scheduling resources of cluster multi call is former
Cause, including:
Judge whether to receive cluster multi call release instruction, if, it is determined that described release cause is
Cluster multi call discharges；
Judge whether to receive the voice bearer instruction of release cluster multi call, if, it is determined that described
Release cause is the voice bearer release of cluster multi call；
Judge whether the speech business of described cluster multi call meets the condition entering quiet period, if
It is, it is determined that described release cause is that the speech business of cluster multi call was forwarded to mourn in silence by the phase of activation
Phase.
In the embodiment of the present invention, described method also includes:
When the speech business of described cluster multi call is unsatisfactory for the condition entering quiet period, by described
The half-persistence scheduling resources of cluster multi call distributes to other users or collection group.
In the embodiment of the present invention, described method also includes:
Determine whether described cluster multi call exhales speech data by transmission group at present sub-frame；
When transmission group is exhaled speech data at present sub-frame by described cluster multi call, it is judged that described collection
Whether the wireless spread-spectrum technology caching of group-calling is empty, the most then perform to monitor described collection group
Whether the speech business exhaled is forwarded to the step of quiet period by the activation phase；Otherwise, according to described cluster
The half-persistence scheduling resources that group is exhaled transmits described new data.
The method for releasing resource of the TD-LTE cluster multi call that the embodiment of the present invention proposes, according to collection
The release of group-calling half-persistence scheduling resources uses different resources to release because release cause is different
Putting method, when cluster multi call speech business is forwarded to quiet period by the phase of activation, group exhales semi-continuous tune
The eNode B that is released through of degree resource sends the half-persistence scheduling resources being carried on PDCCH
Release information, when cluster multi call discharges, exhales release message by eNode B signalling of bouquet group,
And then reduce the PDCCH expense of semi-persistent scheduling cluster multi call.
Fig. 2 shows that the resource of a kind of TD-LTE cluster multi call of another embodiment of the present invention is released
Put the flow chart of method.
With reference to Fig. 2, the resource release side of the TD-LTE cluster multi call that the embodiment of the present invention proposes
Method includes:
S21, base station side scheduler judge whether to receive the collection group that radio resource control layer sends
Exhale release instruction, the most then perform step S12, otherwise perform step S13；
S22, exhaling release message to UE signalling of bouquet group, described cluster multi call release message holds
It is loaded in interim control on channel；
S23, judge whether the speech business of described cluster multi call is forwarded to quiet period by the activation phase,
When the speech business of described cluster multi call is forwarded to quiet period by the phase of activation, then perform step
S14；
The half-persistence scheduling resources release information that S24, transmission are carried on PDCCH is with notice
Described UE discharges the half-persistence scheduling resources of described cluster multi call.
Wherein, it is judged that whether this group vocative expression sound business meets the condition entering quiet period, judgement
Method is specific as follows:
If present sub-frame i meets below equation, show that this group vocative expression sound business meets entrance and mourns in silence
The condition of phase:
[SFNMAX·10+SFNi·10+subframei-TSchedule]mod(SFNMAX·10)≥PSPS·ImplicitReleaseAfter
Wherein: SFNMAX: the SFN maximum numbering of system configuration, for definite value 1024；SFNi:
The radio frame number of present sub-frame i；subframei: the subframe numbers of present sub-frame i；TSchedule:
The scheduling instance that this concentrated speech business semi-continuous scheduling is last；PSPS: semi-continuous scheduling
Concentrated speech business packet arrive the cycle；ImplicitReleaseAfter: quiet period is adjudicated
The factor.
Similar with the feature of voice service in LTE system, speech business in cluster multi call business
There is VoIP feature.For class business such as VoIP, the size of its packet is the most solid
Fixed, and the time interval between packet also meets certain regularity.
The method for releasing resource of the TD-LTE cluster multi call that the embodiment of the present invention proposes, according to
The release cause of cluster multi call half-persistence scheduling resources is different and uses different methods.For
Cluster multi call discharges, and base station side scheduler exhales release message to UE signalling of bouquet group, and UE receives
After this message, this locality discharges cluster multi call half-persistence scheduling resources, and local this group that discharges is exhaled
Relevant TDRB (cluster DRB) Data Radio Bearer Data Radio Bearer, UE stops
Monitor this group and exhale relevant TCCH and TTCH channel, now eNode B need not to
UE sends the PDCCH of half-persistence scheduling resources release.As such, it is possible to reduce semi-static tune
The PDCCH expense of degree cluster multi call.When the speech business of described cluster multi call is by activating the phase
When forwarding quiet period to, send the half-persistence scheduling resources release information being carried on PDCCH
To notify that described UE discharges the half-persistence scheduling resources of described cluster multi call, when UE As-received
The Physical Downlink Control Channel that the cluster multi call semi-continuous scheduling that the eNB that stands sends activates
During PDCCH, start preset timer, it is judged that whether receive in presetting timing and be carried on
Half-persistence scheduling resources release information on PDCCH；Described be carried on PDCCH half
Persistent scheduling resource release information is with semi-continuous scheduling group Radio Network Temporary Identifier SPS G
-RNTI scrambles；It is carried on PDCCH if not receiving in presetting timing
Half-persistence scheduling resources release information, then the half-persistence scheduling resources that release current cluster group is exhaled,
And remove the descending distribution of the semi-continuous scheduling of configured described cluster multi call.
As such, it is possible to reduce the PDCCH expense of semi-persistent scheduling cluster multi call.
In the embodiment of the present invention, when not receiving the cluster multi call that radio resource control layer sends
During release instruction, described method also includes:
Judge the speech business of described cluster multi call whether by the activation phase forward to quiet period it
Before, it may be judged whether receive the voice of the release cluster multi call that described radio resource control layer sends
Carrying instruction；
If the voice bearer receiving the release cluster multi call that described radio resource control layer sends refers to
Show, then send the half-persistence scheduling resources release information being carried on PDCCH to notify institute
State UE and discharge the half-persistence scheduling resources of described cluster multi call.
Concrete, when the voice bearer that eNode B release group is exhaled, and this group exhale middle existence its
When he carries but does not include other voice bearers that this group any is exhaled, such as visual at one
Releasing group in calling talk process exhales voice bearer to only have group to exhale the scene of video bearer,
ENode B sends the half-persistence scheduling resources release information being carried on PDCCH and leads to
The half-persistence scheduling resources of the UE release current cluster group in Zhi Ji group, UE removes and joins
The descending distribution of the semi-continuous scheduling that this collection group put is relevant.
Further, if not receiving the release collection group that described radio resource control layer sends
The voice bearer instruction exhaled, described method also includes:
Determine whether described cluster multi call exhales speech data by transmission group at present sub-frame；
When transmission group is exhaled speech data at present sub-frame by described cluster multi call, it is judged that described collection
Whether the wireless spread-spectrum technology caching of group-calling is empty, the most then perform the described collection of described monitoring
Whether the speech business of group-calling is forwarded to the step of quiet period by the activation phase；Otherwise, according to described
The half-persistence scheduling resources of cluster multi call transmits described new data.
Wherein it is determined that whether this group exhales at present sub-frame by the side of the new data of transmission group vocative expression sound
Method is:
If present sub-frame i meets below equation, show that present sub-frame is by organizing vocative expression sound business
The delivery time of new data, formula is as follows:
{[SFNMAX·10+SFNi·10+subframei-TSchedule]mod(SFNMAX·10)}modPSPS=0
Wherein: SFNMAX: the SFN maximum numbering of system configuration, for definite value 1024；SFNi:
The radio frame number of present sub-frame i；subframei: the subframe numbers of present sub-frame i；TSchedule:
The scheduling instance that this concentrated speech business semi-continuous scheduling is last；PSPS: semi-continuous scheduling
Concentrated speech business packet arrive the cycle.
Further, it not to be forwarded to mourn in silence by the activation phase when the speech business of described cluster multi call
During the phase, described method also includes:
The half-persistence scheduling resources of described cluster multi call is distributed to other users or collection group.
Fig. 3 is the concrete place of the group-calling service half-persistence scheduling resources release of base station side scheduler
Reason flow chart.As described in Figure 3, idiographic flow is described as follows:
1. start；
2. judge whether to receive and come from the group of rrc layer and exhale release instruction, if it is, perform
Step 3, otherwise, performs step 4；
3. this collection group of transmission is carried on TCCH channel and has cluster multi call release message, then
Proceed to step 11；
4. judge whether to receive and come from the voice bearer instruction that the release group of rrc layer is exhaled, as
Fruit is, performs step 10, otherwise, performs step 5；
5. judge that whether this group exhales at present sub-frame by the new data of transmission group vocative expression sound, if
It is to perform step 6, otherwise, perform step 11；
6. judge whether the RLC caching that this group is exhaled is empty, if it is, perform step 8, no
Then, step 7 is performed；
7. exhale, according to this group, the resource that semi-continuous scheduling distributed, transmit the new data that this group is exhaled,
And update, then proceed to step 11；
8. judge whether this group vocative expression sound business meets the condition entering quiet period, if it is, hold
Row step 10, otherwise, performs step 9；
9. resource shared by this business new data of this subframe is distributed to other users or collection group makes
With；
It will be appreciated that the semi-continuous tune that base station dispatcher is this cluster multi call speech business distribution
Degree resource, owing to this subframe does not has new data transmission, can divide this resource in dynamic dispatching mode
Join other users or collection group uses.As such, it is possible to improve the utilization rate of system resource.
10. signalling of bouquet group exhales the PDCCH that semi-continuous scheduling discharges, and notifies in this collection group
UE release current cluster group half-persistence scheduling resources；
11. terminate.
In the embodiment of the present invention when cluster multi call discharges, exhaled by eNode B signalling of bouquet group
Release message, UE is local release cluster multi call half-persistence scheduling resources after receiving this message,
ENode B need not send the PDCCH of half-persistence scheduling resources release to UE, reduces
PDCCH controls the expense of signaling and guarantees that the group-calling service half-persistence scheduling resources of UE is released
Put.
Fig. 4 shows the structured flowchart of a kind of base station that the embodiment of the present invention proposes.Such as Fig. 4 institute
Showing, described base station includes judging unit 110 and transmitting element 120, wherein:
Judging unit 110, for judging the release cause of the half-persistence scheduling resources of cluster multi call；
Transmitting element 120, for when the speech business that described release cause is described cluster multi call
When being forwarded to quiet period by the activation phase, or the voice bearer that described release cause is described cluster multi call
During release, send the half-persistence scheduling resources release information being carried on PDCCH to UE；
Described transmitting element 120, is additionally operable to when described release cause is cluster multi call release,
Release message is exhaled to UE signalling of bouquet group.
Further, described transmitting element 120, it is additionally operable to when described release cause is described collection
When the voice bearer of group-calling discharges, send the semi-continuous tune being carried on PDCCH to UE
Degree resource release information.
Fig. 5 shows the resource release side of a kind of TD-LTE cluster multi call of the embodiment of the present invention
The flow chart of method.
With reference to Fig. 5, the resource release of the TD-LTE cluster multi call that the embodiment of the present invention proposes
Method includes:
S31, when receive base station eNB send the semi-continuous scheduling being carried on PDCCH money
During the release information of source, the half-persistence scheduling resources that release current cluster group is exhaled, and remove configured
The descending distribution of semi-continuous scheduling of described cluster multi call；
S32, when receive described eNB send cluster multi call release message time, discharge described collection
The half-persistence scheduling resources of group-calling and the company-data radio bearer of described cluster multi call, stop
Only monitor the interim of described cluster multi call and control channel and group service channel.
Further, the resource release side of the TD-LTE cluster multi call that the embodiment of the present invention proposes
Method also includes:
When the physical down control receiving the cluster multi call semi-continuous scheduling activation that base station eNB sends
During channel PDCCH processed, start preset timer, it is judged that whether receive in presetting timing
The half-persistence scheduling resources being carried on the PDCCH release information that base station eNB sends；
If not receiving, in presetting timing, the half-persistence scheduling resources being carried on PDCCH
Release information, then the half-persistence scheduling resources that release current cluster group is exhaled, and remove configured
The descending distribution of the semi-continuous scheduling of described cluster multi call；
If receiving the half-persistence scheduling resources release being carried on PDCCH in presetting timing
Information, then terminate described preset timer.
Further, the resource release of the TD-LTE cluster multi call that the embodiment of the present invention proposes
Method also includes:
If the semi-continuous scheduling money being carried on PDCCH described in receiving in described Preset Time
During the control information of the described cluster multi call outside source release information, restart described presetting time
Device.
The method for releasing resource of the TD-LTE cluster multi call that the embodiment of the present invention proposes, UE increases
Add a group and exhale half-persistence scheduling resources release timer, partly hold when UE receives cluster multi call
During the PDCCH that continuous scheduling activates, start this intervalometer.When after this timer expiry, UE
The half-persistence scheduling resources of release current cluster group, UE removes this configured collection group and is correlated with
The descending distribution of semi-continuous scheduling, and then reducing semi-persistent scheduling cluster multi call
The resource release of cluster multi call is realized in the case of PDCCH expense.
Fig. 6 shows the resource release side of a kind of TD-LTE cluster multi call of the embodiment of the present invention
The flow chart of method.
With reference to Fig. 6, the resource release of the TD-LTE cluster multi call that the embodiment of the present invention proposes
Method includes:
S41, when user equipment (UE) receive base station eNB send cluster multi call semi-continuous scheduling
During the physical downlink control channel PDCCH activated, start preset timer；
S42, judge to preset in timing whether receive be carried on PDCCH semi-continuous
Scheduling resource release information；The described half-persistence scheduling resources release being carried on PDCCH
Information scrambles with semi-continuous scheduling group Radio Network Temporary Identifier SPS G-RNTI；
If S43 does not receive, in presetting timing, the semi-continuous tune being carried on PDCCH
Degree resource release information, then the half-persistence scheduling resources that release current cluster group is exhaled, and remove
The descending distribution of the semi-continuous scheduling of configured described cluster multi call, and terminate described presetting
Intervalometer.
Further, described method also includes:
If S44 receives the semi-continuous scheduling money being carried on PDCCH in presetting timing
Source release information, then discharge the half-persistence scheduling resources of described cluster multi call, remove configured
The descending distribution of semi-continuous scheduling of described cluster multi call, and terminate described preset timer.
Further, described method also includes:
If the semi-continuous scheduling money being carried on PDCCH described in receiving in described Preset Time
This cluster multi call outside source release information with G-RNTI or SPS G-RNTI scrambling
During PDCCH, restart described preset timer.
Cluster multi call half-persistence scheduling resources in order to ensure UE can discharge, and not volume
The expense of outer increase PDCCH and the expense of PDSCH resource, the embodiment of the present invention proposes
The method for releasing resource of TD-LTE cluster multi call, exhales semi-continuous scheduling to provide by increasing a group
Source release timer, when UE receives the half-persistence scheduling resources release being carried on PDCCH
During information, start this intervalometer.When, after this timer expiry, UE discharges current cluster group
Half-persistence scheduling resources, UE removes under the semi-continuous scheduling that this configured collection group is relevant
Row distribution.When UE receives the semi-continuous scheduling scrambled except the SPS G-RNTI of this cluster multi call
The PDCCH of the G-RNTI/SPS G-RNTI scrambling that this group outside release PDCCH is exhaled
Time, restart this intervalometer.
The method for releasing resource of the TD-LTE cluster multi call that the embodiment of the present invention proposes also includes:
When receiving the cluster multi call release message that described eNB sends, discharge described collection group
The half-persistence scheduling resources exhaled, and discharge the company-data radio bearer of described cluster multi call；
Cease listening for the interim of this cluster multi call and control channel and group service channel.
The embodiment of the present invention, for user equipment (UE), when UE receives what eNode B sent
During the half-persistence scheduling resources release information being carried on PDCCH, startup group is exhaled semi-continuous
Scheduling resource release timer.When UE receives except the SPS G-RNTI of this cluster multi call scrambles
Semi-continuous scheduling release PDCCH outside the G-RNTI/SPS G-RNTI that exhales of this group add
During the PDCCH disturbed, restart this intervalometer.When, after this timer expiry, UE release is current
The half-persistence scheduling resources of collection group, and remove relevant semi-continuous of this configured collection group
The descending distribution of scheduling.Semi-continuous scheduling release is sent when UE receives eNode B
During PDCCH, UE discharges the half-persistence scheduling resources of this collection group, and removes configured
The descending distribution of the semi-continuous scheduling that this collection group is relevant, and terminate this intervalometer.Work as UE
Receive eNode B send cluster multi call release RRC information (GroupCallRelease disappears
Breath) time, UE this locality discharges cluster multi call half-persistence scheduling resources, and local this group that discharges is exhaled
Relevant TDRB (cluster DRB), UE ceases listening for this group and exhales relevant TCCH and TTCH
Channel.
Fig. 7 shows the structured flowchart of a kind of subscriber equipment that the embodiment of the present invention proposes, such as figure
Shown in 7, described user equipment (UE) include receive unit 210, resource releasing unit 220 with
And monitor control unit 230, wherein:
Described reception unit 210, for receive base station eNB send be carried on PDCCH
On half-persistence scheduling resources release information, or cluster multi call release message；
Described resource releasing unit 220, for when receiving being carried on of base station eNB transmission
When half-persistence scheduling resources on PDCCH discharges information, what release current cluster group was exhaled partly holds
Continuous scheduling resource, and remove descending point of semi-continuous scheduling of configured described cluster multi call
Join；
Described resource releasing unit 220, is additionally operable to when receiving the collection group that described eNB sends
When exhaling release message, discharge the half-persistence scheduling resources of described cluster multi call and described collection group
The company-data radio bearer exhaled；
Described monitoring control unit 230, for when receiving the cluster multi call that described eNB sends
During release message, cease listening for the interim of described cluster multi call and control channel and group service letter
Road.
Further, described subscriber equipment also includes timing unit and judging unit, wherein:
Described timing unit, semi-continuous for working as the cluster multi call receiving base station eNB transmission
During the physical downlink control channel PDCCH that scheduling activates, start preset timer and carry out timing；
Whether described judging unit, receive in being used for judging to preset timing and be carried on
Half-persistence scheduling resources release information on PDCCH；
Further, described resource releasing unit, it is additionally operable to when not having in default timing
When receiving the half-persistence scheduling resources release information being carried on PDCCH, discharge current cluster
The half-persistence scheduling resources that group is exhaled, and remove the semi-continuous scheduling of configured described cluster multi call
Descending distribution；
Further, described timing unit, if receiving carrying in being additionally operable to preset timing
When half-persistence scheduling resources on PDCCH discharges information, terminate described preset timer and enter
Row timing；
Described timing unit, is additionally operable to described in receiving in described Preset Time be carried on
The control of the described cluster multi call outside half-persistence scheduling resources release information on PDCCH
During information, restart described preset timer and carry out timing.
In sum, the present invention provide TD-LTE cluster multi call method for releasing resource and
Base station, uses because release cause is different according to the release of cluster multi call half-persistence scheduling resources
Different method for releasing resource, so reduce semi-persistent scheduling cluster multi call PDCCH open
Pin.And, the method for releasing resource of the another kind of TD-LTE cluster multi call that the present invention provides
And UE, UE receive basis after the half-persistence scheduling resources release information being carried on PDCCH
Ground discharges cluster multi call half-persistence scheduling resources, and local this group that discharges exhales relevant TDRB,
UE ceases listening for this group and exhales relevant TCCH and TTCH channel.Now eNode B is not
Need to send the PDCCH of half-persistence scheduling resources release to UE.Semi-static tune can be reduced
The PDCCH expense of degree cluster multi call.
Through the above description of the embodiments, those skilled in the art it can be understood that
Can be realized by hardware to the present invention, it is also possible to add the general hardware platform of necessity by software
Mode realize.Based on such understanding, technical scheme can be with software product
Form embody, this software product can be stored in a non-volatile memory medium (can
To be CD-ROM, USB flash disk, portable hard drive etc.) in, including some instructions with so that one
Platform computer equipment (can be personal computer, server, or the network equipment etc.) performs
Method described in each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, attached
Module or flow process in figure are not necessarily implemented necessary to the present invention.
It will be appreciated by those skilled in the art that the module in the system in embodiment can be according to reality
Execute example description to carry out being distributed in the system of embodiment, it is also possible to carry out respective change and be positioned at difference
In one or more systems of the present embodiment.The module of above-described embodiment can merge into one
Module, it is also possible to be further split into multiple submodule.
The above is only the some embodiments of the present invention, it is noted that lead for this technology
For the those of ordinary skill in territory, under the premise without departing from the principles of the invention, it is also possible to make
Some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (10)
1. the method for releasing resource of a TD-LTE cluster multi call, it is characterised in that described
Method includes:
Judge the release cause of the half-persistence scheduling resources of cluster multi call；
When the speech business that described release cause is described cluster multi call was forwarded to mourn in silence by the phase of activation
During the phase, send the half-persistence scheduling resources release information being carried on PDCCH to UE, when
When described release cause is cluster multi call release, exhale release message to UE signalling of bouquet group.
Method the most according to claim 1, it is characterised in that described method also includes:
When the voice bearer release that described release cause is described cluster multi call, send to UE
The half-persistence scheduling resources release information being carried on PDCCH.
Method the most according to claim 1 and 2, it is characterised in that described judgement collection
The release cause of the half-persistence scheduling resources of group-calling, including:
Judge whether to receive cluster multi call release instruction, if, it is determined that described release cause is
Cluster multi call discharges；
Judge whether to receive the voice bearer instruction of release cluster multi call, if, it is determined that described
Release cause is the voice bearer release of cluster multi call；
Judge whether the speech business of described cluster multi call meets the condition entering quiet period, if
It is, it is determined that described release cause is that the speech business of cluster multi call was forwarded to mourn in silence by the phase of activation
Phase.
Method the most according to claim 1 and 2, it is characterised in that described method is also
Including:
Determine whether described cluster multi call exhales speech data by transmission group at present sub-frame；
When transmission group is exhaled speech data at present sub-frame by described cluster multi call, it is judged that described collection
Whether the wireless spread-spectrum technology caching of group-calling is empty, the most then perform to monitor described collection group
Whether the speech business exhaled is forwarded to the step of quiet period by the activation phase；Otherwise, according to described cluster
The half-persistence scheduling resources that group is exhaled transmits described new data.
5. a base station, it is characterised in that described base station includes:
Judging unit, for judging the release cause of the half-persistence scheduling resources of cluster multi call；
Transmitting element, for when the speech business that described release cause is described cluster multi call is by swashing
When current forwards quiet period to, or the voice bearer release that described release cause is described cluster multi call
Time, the half-persistence scheduling resources release information being carried on PDCCH is sent to UE；
Described transmitting element, is additionally operable to when described release cause is cluster multi call release, to
UE signalling of bouquet group exhales release message.
6. the method for releasing resource of a TD-LTE cluster multi call, it is characterised in that described
Method includes:
When receiving the half-persistence scheduling resources being carried on the PDCCH release that base station eNB sends
During information, the release half-persistence scheduling resources exhaled of current cluster group, and remove configured described
The descending distribution of the semi-continuous scheduling of cluster multi call；
When receiving the cluster multi call release message that described eNB sends, discharge described collection group
The half-persistence scheduling resources exhaled and the company-data radio bearer of described cluster multi call, stop prison
The interim of described cluster multi call is listened to control channel and group service channel.
Method the most according to claim 6, it is characterised in that described method also includes:
When the physical down control receiving the cluster multi call semi-continuous scheduling activation that base station eNB sends
During channel PDCCH processed, start preset timer, it is judged that whether receive in presetting timing
The half-persistence scheduling resources being carried on the PDCCH release information that base station eNB sends；
If not receiving, in presetting timing, the half-persistence scheduling resources being carried on PDCCH
Release information, then the half-persistence scheduling resources that release current cluster group is exhaled, and remove configured
The descending distribution of the semi-continuous scheduling of described cluster multi call；
If receiving the half-persistence scheduling resources release being carried on PDCCH in presetting timing
Information, then terminate described preset timer.
Method the most according to claim 7, it is characterised in that described method also includes:
If the half-persistence scheduling resources being carried on PDCCH described in receiving in described Preset Time
During the control information of the described cluster multi call outside release information, restart described preset timer.
9. a user equipment (UE), it is characterised in that described UE includes:
Receive unit, for receive base station eNB send be carried on PDCCH semi-continuous
Scheduling resource release information, or cluster multi call release message；
Resource releasing unit, for when receive base station eNB send be carried on PDCCH
During half-persistence scheduling resources release information, the half-persistence scheduling resources that release current cluster group is exhaled,
And remove the descending distribution of the semi-continuous scheduling of configured described cluster multi call；
Described resource releasing unit, is additionally operable to the cluster multi call when receiving described eNB transmission and releases
When putting message, discharge the half-persistence scheduling resources of described cluster multi call and described cluster multi call
Company-data radio bearer；
Monitor control unit, for when receiving the cluster multi call release message that described eNB sends
Time, cease listening for the interim of described cluster multi call and control channel and group service channel.
Subscriber equipment the most according to claim 9, it is characterised in that described user sets
For also including:
Timing unit, for swashing when the cluster multi call semi-continuous scheduling receiving base station eNB transmission
During the physical downlink control channel PDCCH lived, start preset timer and carry out timing；
Whether judging unit, receive in being used for judging to preset timing and be carried on PDCCH
Half-persistence scheduling resources release information；
Described resource releasing unit, is additionally operable to not receive in presetting timing be carried on
When half-persistence scheduling resources on PDCCH discharges information, what release current cluster group was exhaled partly holds
Continuous scheduling resource, and remove descending point of semi-continuous scheduling of configured described cluster multi call
Join；
Described timing unit, is carried on PDCCH if receiving in being additionally operable to preset timing
Half-persistence scheduling resources release information time, terminate described preset timer and carry out timing；
Described timing unit, is additionally operable to described in receiving in described Preset Time be carried on
The control letter of the described cluster multi call outside half-persistence scheduling resources release information on PDCCH
During breath, restart described preset timer and carry out timing.
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Cited By (3)
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| CN108934070A (en) * | 2017-05-24 | 2018-12-04 | 大唐移动通信设备有限公司 | A kind of physical downlink control channel resource dispatching method and device |
| CN111107501A (en) * | 2018-10-25 | 2020-05-05 | 普天信息技术有限公司 | Group call service processing method and device |
| US11582732B2 (en) | 2017-08-11 | 2023-02-14 | Vivo Mobile Communication Co., Ltd. | Methods and devices for configuring and monitoring search space of PDCCH |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20210266952A1 (en) * | 2020-02-25 | 2021-08-26 | Qualcomm Incorporated | Pre-configured activation and deactivation |
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| US20100151874A1 (en) * | 2008-12-17 | 2010-06-17 | Zhijun Cai | Semi-persistent resource release by wireless communication device |
| CN103167420A (en) * | 2011-12-16 | 2013-06-19 | 鼎桥通信技术有限公司 | Symbolic programming system (SPS) activating method and base station |
| CN104427626A (en) * | 2013-08-23 | 2015-03-18 | 普天信息技术有限公司 | Semi-static scheduling method and system |
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| US20100151874A1 (en) * | 2008-12-17 | 2010-06-17 | Zhijun Cai | Semi-persistent resource release by wireless communication device |
| CN103167420A (en) * | 2011-12-16 | 2013-06-19 | 鼎桥通信技术有限公司 | Symbolic programming system (SPS) activating method and base station |
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| CN108934070A (en) * | 2017-05-24 | 2018-12-04 | 大唐移动通信设备有限公司 | A kind of physical downlink control channel resource dispatching method and device |
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