CN104378187A - Downlink control channel processing method, device and system - Google Patents
Downlink control channel processing method, device and system Download PDFInfo
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- CN104378187A CN104378187A CN201310349536.XA CN201310349536A CN104378187A CN 104378187 A CN104378187 A CN 104378187A CN 201310349536 A CN201310349536 A CN 201310349536A CN 104378187 A CN104378187 A CN 104378187A
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- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1273—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
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Abstract
The invention provides a downlink control channel processing method. The method comprises the steps that a sending end is used for conducting semi-static scheduling or dynamic scheduling of cluster services through a G-RNTI when the cluster services of the G-RNTI exist in a downlink TTI; for all UE in a cluster service group, if UE individual services further exist in the downlink TTI, the UE individual services are not scheduled in the TTI and are scheduled in the next TTI; in the downlink TTI, the UE is used for conducting a PDCCH special space blind test by {G-RNTI} or {C-RNTI, G-RNTI} sets. The invention further provides a downlink control channel processing device and system. The downlink control channel processing method, device and system can well support more groups of cluster services, and lower the UE searching complexity.
Description
Technical field
The present invention relates to wireless communication field, particularly relate to a kind of down control channel processing method, device and system.
Background technology
In LTE group system, except the RNTI supported in former LTE standard, adds additional the GP-RNTI(group paging radio network temporary identifier supporting group service) and G-RNTI(group radio network temporary identifier), wherein, GP-RNTI is used for the paging of group user, and G-RNTI is used for the physical layer scrambling etc. of group's signaling and business.Existing method is: newly open up a G-RNTI extending space, when public space is taken by the RNTI that other priority is higher, is placed on by G-RNTI in this G-RNTI extending space.Such as Chinese patent application " a kind of collocation method of descending scheduling order space " (application number: 201110315052.4).
There are the following problems for the method: need UE to increase blind check number of times to G-RNTI newly.And, a fixing reserved G-RNTI extending space is unfavorable for the dynamic conditioning of many group group services: when the cluster group in community increases, the G-RNTI number of a TTI dispatching can be caused to increase, then the demand of G-RNTI extending space is then increased, when the cluster group in community reduces, the G-RNTI number of a TTI dispatching can be caused to reduce, then the demand of G-RNTI extending space is then reduced.Reserved G-RNTI extending space is excessive, and the blind check number of times of UE to G-RNTI can be caused to increase further, reserved G-RNTI extending space is too small, can affect the scheduling to cluster group, if want dynamic conditioning G-RNTI extending space then to need again additionally to increase information of eating dishes without rice or wine.
Summary of the invention
For the problems referred to above, the present invention proposes a kind of method that down control channel distributes, and the method comprises: when having the group service of G-RNTI in a descending TTI, is carried out semi-persistent scheduling or the dynamic dispatching of described group service by described G-RNTI; To UE each in group service group, if go back UE individual service in this descending TTI, then described UE individual service is not dispatched at this TTI, and dispatches in the descending TTI of the next one.
Further, when carrying out the dynamic dispatching of described group service, described G-RNTI distributes at private space.
Further, carry out the semi-persistent scheduling of described group service or dynamic dispatching by described G-RNTI and comprise UE to being in RRC_Idle state in group service group, use G-RNTI to carry out traffic scheduling; If the UE also comprised being in RRC_Connected state only has group service, then G-RNTI is used to carry out traffic scheduling.
Further, if each UE function all supports semi-persistent scheduling in group service group, then carry out semi-persistent scheduling, otherwise carry out dynamic dispatching.
In said method, group service group can be one or more; The CCE degree of polymerization adopted described G-RNTI can be { the set of 8,4}.
The present invention also proposes a kind of down control channel processing unit, comprising: the first scheduler module, during for there being the group service of G-RNTI in a descending TTI, is carried out semi-persistent scheduling or the dynamic dispatching of described group service by described G-RNTI; Second scheduler module, for the UE individual service also had in this descending TTI UE each in group service group, dispatches in the descending TTI of the next one.Further, allocation of space module can also be comprised, during for carrying out described group service dynamic dispatching, for described G-RNTI distributes at private space.Described first scheduler module also for the UE being in RRC_Idle state in group service group, uses G-RNTI to carry out traffic scheduling; If the first scheduler module is also for only having group service to the UE being in RRC_Connected state, then G-RNTI is used to carry out traffic scheduling.If each UE all supports semi-persistent scheduling in described group service group, then carry out semi-persistent scheduling, otherwise carry out dynamic dispatching.
The present invention also proposes a kind of down control channel processing method, comprising: adopt { G-RNTI} or { blind check of PDCCH private space is carried out in C-RNTI, G-RNTI} set at descending TTI, UE.Further, to the G-RNTI group service of semi-persistent scheduling, { blind check of PDCCH private space is carried out in G-RNTI} set in the descending TTI employing of UE in the semi-static cycle of G-RNTI.To the G-RNTI group service of dynamic dispatching, UE in each of the lower row TTI adopts { G-RNTI} or { blind check of PDCCH private space is carried out in C-RNTI, G-RNTI} set; Wherein, if under UE is in RRC_Idle state, then { blind check is carried out in G-RNTI} set in employing; If UE is in RRC_Connected state, then { blind check is carried out in C-RNTI, G-RNTI} set in employing.Adopt { when blind check is carried out in C-RNTI, G-RNTI} set: first carry out blind check with the C-RNTI of this UE at private space, if DCI detected, then exit the blind check of private space; If DCI do not detected, then carry out blind check with G-RNTI at private space again.
The present invention also proposes a kind of terminal, and to the G-RNTI group service of semi-persistent scheduling, { blind check of PDCCH private space is carried out in G-RNTI} set to the descending TTI employing in the semi-static cycle of G-RNTI; To the G-RNTI group service of dynamic dispatching, row TTI adopts { G-RNTI} or { blind check of PDCCH private space is carried out in C-RNTI, G-RNTI} set in each of the lower.To the G-RNTI group service of dynamic dispatching, if under terminal is in RRC_Idle state, then { blind check is carried out in G-RNTI} set in employing; If be in RRC_Connected state, then { blind check is carried out in C-RNTI, G-RNTI} set in employing.Adopt and { first carry out blind check with the C-RNTI of terminal at private space when blind check is carried out in C-RNTI, G-RNTI} set, if DCI detected, then exit the blind check of private space; If DCI do not detected, then carry out blind check with G-RNTI at private space again.
The present invention also proposes a kind of down control channel treatment system, and this system comprises down control channel processing unit and terminal, wherein, described down control channel processing unit and terminal described above.
The down control channel processing method that the present invention proposes, device and system can not only well support more groups of group services, enhance group service system gain, and simultaneously when group service adopts semi-persistent scheduling, UE does not need to increase blind check number of times; When group service adopts dynamic dispatching, UE increases at most 4 PDCCH blind check number of times, and immobilizes, and has taken into account the blind check number of times of UE to G-RNTI, has reduced UE search complexity.
Accompanying drawing explanation
Fig. 1 is the process chart of the method that proposes of the present invention at transmitting terminal;
Fig. 2 is the process chart of the method that proposes of the present invention at receiving terminal;
Fig. 3 is the structural representation of the device that the present invention proposes;
Fig. 4 is the structural representation of the system that the present invention proposes.
Embodiment
For the purpose of quoting and know, the explanation of the technology ranking hereinafter used, to write a Chinese character in simplified form and abbreviation is summarized as follows:
LTE:Long Term Evolution system, long evolving system;
RNTI:Radio Network Temporary Identifier, Radio Network Temporary Identifier;
GP-RNTI:Group Paging RNTI, group paging Radio Network Temporary Identifier;
G-RNTI:Group RNTI, group's Radio Network Temporary Identifier;
CCE:Control Channel Elements, control channel resource;
C-RNTI: Cell Radio Network Temporary Identifier/Identity, Cell-RNTI;
UE:User Equipment, subscriber equipment;
TTI:Transmit Time Interval, transmission time interval;
PDCCH:Physical Downlink Control Channel, Physical Downlink Control Channel;
DCI:Downlink Control Information, Downlink Control Information.
The concrete structure of the idiographic flow of down control channel processing method that the present invention proposes, device and system will be specifically described by following examples.
Refer to accompanying drawing 1, a kind of down channel processing method proposed for the present invention is at the process chart of transmitting terminal.Its concrete operations are as follows:
For transmitting terminal, base station side adopts semi-persistent scheduling or dynamic dispatching to the UE group corresponding to G-RNTI, dynamic dispatching is adopted to the UE being in RRC_Connected state in the UE group corresponding to G-RNTI, be specially: the community of base station adopts semi-persistent scheduling to the group service of a G-RNTI, when there being the group service of a G-RNTI in the descending TTI in the semi-static cycle of G-RNTI, the semi-persistent scheduling of this business is then carried out by this G-RNTI, further, if also have UE(to make this UE be UEi in the cluster of the G-RNTI in this TTI, its C-RNTI is C-RNTIi) there is oneself business, then this business of this UE is not dispatched at this TTI, and this business is put in next descending TTI dispatches.
The community of base station adopts dynamic dispatching to the group service of a G-RNTI, when there being the group service of a G-RNTI in a descending TTI, the dynamic dispatching of this business is then carried out by this G-RNTI, wherein, G-RNTI distributes at private space, further, if also have UE(to make this UE be UEj in the cluster of the G-RNTI in this TTI, its C-RNTI is C-RNTIj) there is oneself business, then the business of this UE is not dispatched at this TTI, and this business is put in next descending TTI dispatches.
Further, the CCE degree of polymerization adopted G-RNTI can be { the set of 8,4}.
Refer to accompanying drawing 2, for the handling process of the receiving terminal of a kind of down channel processing method of the present invention's proposition, its concrete operations comprise: be the group service of semi-persistent scheduling for G-RNTI, and UE adopts at the descending TTI in the semi-static cycle of G-RNTI that { blind check of PDCCH private space is carried out in G-RNTI} set.Be the group service of dynamic dispatching for G-RNTI, UE in each of the lower row TTI adopts { G-RNTI} or { blind check of PDCCH private space is carried out in C-RNTI, G-RNTI} set.Wherein, for the UE under RRC_Idle state, adopt G-RNTI} gathers, for the UE under RRC_Connected state, employing { C-RNTI, G-RNTI} set.For { C-RNTI, G-RNTI} gather, and UE adopts the order of RNTI to be G-RNTI after first C-RNTI, is specially: first carry out blind check with the C-RNTI of this UE at private space, if DCI detected, then exit the blind check of private space; If DCI do not detected, then carry out blind check with G-RNTI at private space again.
In said process, the CCE degree of polymerization adopted G-RNTI can be { the set of 8,4}.
Adopt said method, system can well be supported to organize group service more, and simultaneously when group service adopts semi-persistent scheduling, UE does not need to increase blind check number of times; When group service adopts dynamic dispatching, UE at most only increases by 4 PDCCH blind check number of times and immobilizes.
Certain applications below in conjunction with embodiment one and embodiment two pairs of said methods are specifically described:
Example one:
The community of certain base station is made to there are 3 UE, be respectively UE0 ~ UE2, there is a G-RNTI is 15, corresponding UE is respectively UE0 ~ UE2, and wherein, UE0 is in RRC_Connected state, all the other UE are in RRC_Idle state, make the C-RNTI of UE0 be 5, G-RNTI being the group service of 15 to adopt semi-persistent scheduling, have the C-RNTI business of G-RNTI group service and UE0 at the descending TTI in certain semi-static cycle simultaneously.
Transmitting terminal, base station side:
Step 1: the community of base station first adopts semi-persistent scheduling G-RNTI group service under this descending TTI, under making this TTI, this semi-persistent scheduling parameter does not change, scheduling parameter comprises RB number and position, MCS etc., and therefore, G-RNTI not be used in private space and distributes;
Step 2: this community is dispatched the UE of C-RNTI business that has be under RRC_Connected state under this descending TTI again, only has UE0 to have C-RNTI business to wait to dispatch under this descending TTI, therefore, this descending TTI is not to the C-RNTI traffic scheduling of UE0.
Receiving terminal,
UE0 side:
In this descending TTI employing, { blind check of the private space of PDCCH is carried out in G-RNTI} set to step 1:UE0, reactivation or the deexcitation of G-RNTI do not detected, then adopts the scheduling parameter of up-to-date history to carry out the demodulation of PDSCH.
UE1 side:
In this descending TTI employing, { blind check of the private space of PDCCH is carried out in G-RNTI} set to step 1:UE1, reactivation or the deexcitation of G-RNTI do not detected, then adopts the scheduling parameter of up-to-date history to carry out the demodulation of PDSCH.
UE2 side:
In this descending TTI employing, { blind check of the private space of PDCCH is carried out in G-RNTI} set to step 1:UE2, reactivation or the deexcitation of G-RNTI do not detected, then adopts the scheduling parameter of up-to-date history to carry out the demodulation of PDSCH.
Example 2
The community of certain base station is made to there are two UE, be respectively UE0 ~ UE1, a G-RNTI is 21, corresponding UE is respectively UE0 ~ UE1, and wherein, UE0 is in RRC_Idle state, UE1 is in RRC_Connected state, make the C-RNTI of UE1 be 17, G-RNTI being the group service of 21 to adopt dynamic dispatching, only have G-RNTI group service at certain descending TTI.
Transmitting terminal, base station side:
Step 1: the community of base station first adopts dynamic dispatching G-RNTI group service under this descending TTI, and wherein, G-RNTI distributes at private space;
Step 2: this community is dispatched the UE of C-RNTI business that has be under RRC_Connected state under this descending TTI again, does not have UE to have C-RNTI business to wait to dispatch under this descending TTI, therefore, terminate scheduling.
Receiving terminal,
UE0 side:
In this descending TTI employing, { blind check of the private space of PDCCH is carried out in G-RNTI} set to step 1:UE0, first adopts G-RNTI to carry out the blind check of the private space of PDCCH, detects that G-RNTI exists, then carry out the demodulation of PDSCH by the scheduling parameter under G-RNTI.
UE1 side:
In this descending TTI employing, { blind check of the private space of PDCCH is carried out in C-RNTI, G-RNTI} set to step 1:UE1, first carries out the blind check of the private space of PDCCH with C-RNTI, does not detect that C-RNTI exists, continue next RNTI blind check;
Step 2:UE1 continues to adopt G-RNTI to carry out the blind check of the private space of PDCCH, detects that G-RNTI exists, then terminates remaining blind check in this set, and carry out the demodulation of PDSCH by the scheduling parameter under G-RNTI.
Embodiment three:
Refer to accompanying drawing 3, down control channel processing unit structural representation disclosed in the embodiment of the present invention three.Repacking is put and is comprised: the first scheduler module, during for there being the group service of G-RNTI in a descending TTI, is carried out semi-persistent scheduling or the dynamic dispatching of described group service by described G-RNTI; Second scheduler module, for the UE individual service also had in this descending TTI UE each in group service group, dispatches in the descending TTI of the next one.Further, allocation of space module can also be comprised, during for carrying out described group service dynamic dispatching, for described G-RNTI distributes at private space.Described first scheduler module also for the UE being in RRC_Idle state in group service group, uses G-RNTI to carry out traffic scheduling; If the first scheduler module is also for only having group service to the UE being in RRC_Connected state, then G-RNTI is used to carry out traffic scheduling.If each UE all supports semi-persistent scheduling in described group service group, then carry out semi-persistent scheduling, otherwise carry out dynamic dispatching.
Embodiment four:
A kind of terminal.Based on down control channel processing unit disclosed in embodiment three, to the G-RNTI group service of semi-persistent scheduling, adopt at the descending TTI in the semi-static cycle of G-RNTI that { blind check of PDCCH private space is carried out in G-RNTI} set; To the G-RNTI group service of dynamic dispatching, row TTI adopts { G-RNTI} or { blind check of PDCCH private space is carried out in C-RNTI, G-RNTI} set in each of the lower.To the G-RNTI group service of dynamic dispatching, if under terminal is in RRC_Idle state, then { blind check is carried out in G-RNTI} set in employing; If be in RRC_Connected state, then { blind check is carried out in C-RNTI, G-RNTI} set in employing.Adopt and { first carry out blind check with the C-RNTI of terminal at private space when blind check is carried out in C-RNTI, G-RNTI} set, if DCI detected, then exit the blind check of private space; If DCI do not detected, then carry out blind check with G-RNTI at private space again.
Embodiment five:
Refer to accompanying drawing 4, a kind of structural representation of down control channel treatment system disclosed in the embodiment of the present invention five.This system is made up of the down control channel processing unit such as described by embodiment three and the terminal described by embodiment four.
Can be found out by above embodiment, the present invention proposes down channel control channel processing method, device and system, can not only well support more groups of group services, enhance group service system gain; Especially { when 8,4}, the blind check number of times of the increase of UE is very limited: simultaneously when group service adopts semi-persistent scheduling, UE does not need to increase blind check number of times to adopt the CCE degree of polymerization for group service G-RNTI; When group service adopts dynamic dispatching, UE merely add 2 PDCCH blind check number of times and immobilizes, and has taken into account the blind check number of times of UE to G-RNTI, has reduced UE search complexity.
Above-described embodiment is only the present invention's part embodiment, instead of whole embodiments.Within the spirit and principles in the present invention all, those of ordinary skill in the art, not making any amendment done under creative work prerequisite, equivalent replacement or improvement etc., all should belong within the scope of protection of the invention.
Claims (23)
1. a down control channel processing method, is characterized in that, comprising:
Transmitting terminal:
When having the group service of G-RNTI in a descending TTI, carried out semi-persistent scheduling or the dynamic dispatching of described group service by described G-RNTI;
To UE each in group service group, if go back UE individual service in this descending TTI, then described UE individual service is not dispatched at this TTI, and dispatches in the descending TTI of the next one.
2. method according to claim 1, is characterized in that, when carrying out the dynamic dispatching of described group service, described G-RNTI distributes at private space.
3. method according to claim 1, it is characterized in that, describedly carry out the semi-persistent scheduling of described group service or dynamic dispatching by described G-RNTI and comprise UE to being in RRC_Idle state in group service group, use G-RNTI to carry out group service scheduling.
4. method according to claim 1, it is characterized in that, carry out by described G-RNTI the UE that the semi-persistent scheduling of described group service or dynamic dispatching also comprise being in RRC_Connected state if described and only have group service, then use G-RNTI to carry out group service scheduling.
5. method according to claim 1 and 2, is characterized in that, is defined as dynamic dispatching or semi-persistent scheduling: if described each UE all supports semi-persistent scheduling, then carry out semi-persistent scheduling, otherwise carry out dynamic dispatching according to UE function each in described group service group.
6. method according to claim 1, is characterized in that, described group service group is one or more.
7. one of method according to claims 1 to 6, is characterized in that, the CCE degree of polymerization adopted described G-RNTI is the { set of 8,4}.
8. a down control channel processing unit, is characterized in that, comprising:
First scheduler module, during for there being the group service of G-RNTI in a descending TTI, carries out semi-persistent scheduling or the dynamic dispatching of described group service by described G-RNTI;
Second scheduler module, for the UE individual service also had in this descending TTI UE each in group service group, dispatches in the descending TTI of the next one.
9. device according to claim 8, is characterized in that, also comprises allocation of space module, during for carrying out described group service dynamic dispatching, for described G-RNTI distributes at private space.
10. device according to claim 8, is characterized in that, described first scheduler module also for the UE being in RRC_Idle state in group service group, uses G-RNTI to carry out group service scheduling.
11. devices according to claim 8, is characterized in that, if described first scheduler module is also for only having group service to the UE being in RRC_Connected state, then use G-RNTI to carry out group service scheduling.
12. devices according to claim 8 or claim 9, is characterized in that, if each UE all supports semi-persistent scheduling in described first scheduler module described group service group, then carry out semi-persistent scheduling, otherwise carry out dynamic dispatching.
13. devices according to claim 1, is characterized in that, described group service group is one or more.
One of device described in 14. according to Claim 8 ~ 13, is characterized in that, the CCE degree of polymerization adopted described G-RNTI is the { set of 8,4}.
15. 1 kinds of down control channel processing methods, is characterized in that, comprising: adopt { G-RNTI} or { blind check of PDCCH private space is carried out in C-RNTI, G-RNTI} set at descending TTI, UE.
16. methods according to claim 15, it is characterized in that, described employing { G-RNTI} or { C-RNTI, G-RNTI} set specifically comprises: to the G-RNTI group service of semi-persistent scheduling, and { blind check of PDCCH private space is carried out in G-RNTI} set in the descending TTI employing of UE in the semi-static cycle of G-RNTI.
17. methods according to claim 15, it is characterized in that, described employing { G-RNTI} or { C-RNTI, G-RNTI} set also comprises: to the G-RNTI group service of dynamic dispatching, UE in each of the lower row TTI adopts { G-RNTI} or { blind check of PDCCH private space is carried out in C-RNTI, G-RNTI} set.
18. methods according to claim 17, is characterized in that, to the G-RNTI group service of dynamic dispatching, if under UE is in RRC_Idle state, then { blind check is carried out in G-RNTI} set in employing; If UE is in RRC_Connected state, then { blind check is carried out in C-RNTI, G-RNTI} set in employing.
19. methods according to claim 18, is characterized in that { C-RNTI, G-RNTI} set is carried out blind check and is specially: first carry out blind check with the C-RNTI of this UE at private space, if DCI detected, then exit the blind check of private space in described employing; If DCI do not detected, then carry out blind check with G-RNTI at private space again.
20. 1 kinds of terminals, is characterized in that, comprising: to the G-RNTI group service of semi-persistent scheduling, and { blind check of PDCCH private space is carried out in G-RNTI} set to the descending TTI employing in the semi-static cycle of G-RNTI; To the G-RNTI group service of dynamic dispatching, row TTI adopts { G-RNTI} or { blind check of PDCCH private space is carried out in C-RNTI, G-RNTI} set in each of the lower.
21. terminals according to claim 20, is characterized in that, to the G-RNTI group service of dynamic dispatching, if under terminal is in RRC_Idle state, then { blind check is carried out in G-RNTI} set in employing; If be in RRC_Connected state, then { blind check is carried out in C-RNTI, G-RNTI} set in employing.
22. methods according to claim 21, is characterized in that { C-RNTI, G-RNTI} set is carried out blind check and is specially: first carry out blind check with the C-RNTI of terminal at private space, if DCI detected, then exit the blind check of private space in employing; If DCI do not detected, then carry out blind check with G-RNTI at private space again.
23. 1 kinds of down control channel treatment systems, it is characterized in that, this system comprises down control channel processing unit and terminal, wherein, the down control channel processing unit of described down control channel processing unit described by claim 8 ~ 14 any one, the terminal of described terminal described by claim 20 ~ 22 any one.
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| CN109428698A (en) * | 2017-08-25 | 2019-03-05 | 成都鼎桥通信技术有限公司 | Dispatch channel resource method and base station based on terminal capacity report |
| CN110139226A (en) * | 2018-02-09 | 2019-08-16 | 成都鼎桥通信技术有限公司 | A kind of group's condition processing method and equipment based on B-TrunC |
| CN112055412A (en) * | 2019-06-05 | 2020-12-08 | 成都鼎桥通信技术有限公司 | Method and device for allocating physical downlink control channel resources of B-trunC group |
| CN114765480A (en) * | 2021-01-14 | 2022-07-19 | ***通信有限公司研究院 | DCI size determination method, device, terminal and storage medium |
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| CN112055412B (en) * | 2019-06-05 | 2022-09-09 | 成都鼎桥通信技术有限公司 | Method and device for allocating physical downlink control channel resources of B-trunC group |
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