CN105493593A - An eNB for notifying UE the TDD reconfiguration of the serving cell - Google Patents
An eNB for notifying UE the TDD reconfiguration of the serving cell Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0096—Indication of changes in allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
- H04L5/0035—Resource allocation in a cooperative multipoint environment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0058—Allocation criteria
- H04L5/0064—Rate requirement of the data, e.g. scalable bandwidth, data priority
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
- H04L5/1469—Two-way operation using the same type of signal, i.e. duplex using time-sharing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
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Abstract
The present invention aims to provide an eNB for notifying UE the TDD reconfiguration of the serving cell. An eNB for notifying UE the TDD reconfiguration of the serving cell is configured to signal a plurality of UEs TDD reconfiguration information of the serving cell via physical layer, wherein the TDD reconfiguration information contains at least one of the following items: - TDD UL-DL reconfiguration information; - OLPC subframe pattern information. Compared with the prior art, the present invention considers both TDD reconfiguration information and OLPC subframe pattern information. With the explicit L1 signalling of reconfiguration on CSS, such as a DCI containing TDD UL-DL reconfiguration information and/or OLPC subframe pattern information, the signalling overhead can be saved. With the explicit L1 signalling of reconfiguration on PDSCH, A/N for PDSCH increases the reliability of TDD reconfiguration and more signaling information can be conveyed on PDSCH.
Description
Technical field
The present invention relates to wireless communication technology field, more specifically, relating to the technology for reshuffling to the TDD (TimeDivisionDuplexing, time division duplex) of UE (UserEquipment, subscriber equipment) notification service community.
Background technology
At the eIMTA (EnhancedInterferenceTrafficAdaption of 3GPP version 12 (Rel-12), the interference management business strengthened adapts to) job (WI, workitem) in, for the signaling mechanism that TDD reshuffles, RAN1 (wireless access network 1) the 73rd meeting has reached common recognition with regard to following working hypothesis, and detailed suggestion will be discussed on N/A.
● by UE-group-public (UE-group-common) e) reshuffling of transmitting of PDCCH (PhysicalDownlinkControlChannel, Physical Downlink Control Channel) express layer 1 (L1) signaling;
● which search volume (searchspace) is used to above-mentioned signaling, treats further research;
● expressing the reliability of scheme and the reserved regimen of robustness for improving this, treating further research;
● necessary UL (Uplink, up link) scheduling timing (schedulingtiming) and HARQ (HybridAutomaticRequest, hybrid automatic repeat-request) timing signaling, treat further research;
● avoid extra blind decoding as far as possible.
For No. 73 meeting and before meeting submit to some files (Tdoc) in, for the L1 signaling expressed, suggestion is had to use and DCI (DownlinkControlInformation, down link control information) new DCI that 1C size is identical notifies that the TDD on CSS (commonsearchspace, public search space) reshuffles.But, in motion, do not relate to the heterogeneous network (heterogeneousnetwork, HTN) and the concrete scheme of carrier aggregation (CarrierAggregation, CA) taking into account in macrocell and picocell and there is same cells mark.In addition, in current existing motion, do not consider open Loop Power control (open-looppowercontrol, the OLPC) sub-frame mode (subframepattern) in L1 signaling.
Summary of the invention
The present invention wishes to propose a kind of evolved base station (eNB) and reshuffles to the TDD of UE notification service community.
According to an aspect of the present invention, provide a kind of eNB for reshuffling to the TDD of UE notification service community, described eNB is configured to:
-send the TDD reconfiguration information of described Serving cell to multiple UE through physical layer, wherein, described TDD reconfiguration information comprises at least one item in the following:
Up-descending reconfiguration information of-TDD;
-OLPC sub-frame mode information.
According to a further aspect in the invention, provide a kind of UE of the TDD reconfiguration information for receiving Serving cell, described UE is configured to:
-receiving the DCI on public search space via physical layer, described DCI is for notifying that the TDD of described Serving cell reshuffles, and wherein, described DCI comprises at least one item in the following:
-TDD is up-descending reshuffles territory, wherein comprises up-descending reconfiguration information of TDD;
-OLPC sub-frame mode territory, wherein comprises OLPC sub-frame mode information;
If-be correctly decoded received described DCI, then reply ACK message to described Serving cell, if be not correctly decoded received described DCI, then reply NACK message to described Serving cell;
If-be correctly decoded received described DCI, then reshuffle work based on the TDD of notified described Serving cell in the next frame.
Compared with prior art, the present invention considers TDD reconfiguration information and OLPC sub-frame mode information simultaneously.Utilize on CSS reshuffle express L1 signaling, such as comprise the DCI of up-descending reconfiguration information of TDD and/or OLPC sub-frame mode information, can aerial signaling be saved.Further, owing to introducing ACK/NACK (A/N) feedback to DCI signaling, the reliability of the dominant L1 signaling of reshuffling on CSS is able to larger lifting.In addition, by the reconfiguration information on PDSCH (PhysicalDownlinkSharedChannel, Physical Downlink Shared Channel), the A/N of PDSCH enhances the reliability that TDD reshuffles, and more signaling information can transmit on PDSCH.In addition, by notify the TDD of neighbor cell up-downstream arrangements, OLPC sub-frame mode can implicitly be sent out.
Accompanying drawing explanation
Read the following detailed description to nonlimiting examples by referring to accompanying drawing, further feature of the present invention, object and advantage will become apparent.
Fig. 1 shows the example of the change of being reshuffled the OLPC sub-frame mode of triggering by the TDD of Serving cell.
Same or analogous mark in accompanying drawing represents identical or corresponding parts.
Embodiment
Next, will carry out further introducing in detail to the present invention by reference to the accompanying drawings.
In the 73rd meeting of upper once RAN1, also just at least two subframe collection are configured to support that the open Loop Power control parameter (P0 and alpha) be separated is in agreement.Consider the working hypothesis expressing L1 signaling of reshuffling transmitted by UE-group-public e) PDCCH adopted and can go up agreement, OLPC sub-frame mode can dynamically change, also namely, for it uses the subframe collection of two groups of OLPC parameters (P0 and alpha).Between eNB (eNB-to-eNB) mainly rely on the TDD of Serving cell and neighbouring neighbor cell up-downstream arrangements.
Once the TDD of Serving cell reshuffles the change triggering OLPC sub-frame mode, the OLPC sub-frame mode that apply also can by sent by UE-group-public e) PHCCH for reshuffle express L1 signaling carry.The dynamic TDD that Fig. 1 gives Serving cell reshuffles the example of caused OLPC sub-frame mode change.TDD for any neighbor cell reshuffles the change of triggered OLPC sub-frame mode, may need one new to express/recessive L1 signaling for notifying sub-frame mode, outside this L1 signaling range of reshuffling for TDD considered in the present invention.
In the present invention, provide under above-mentioned hypothesis, consider the some new signaling mechanism of TDD reconfiguration information and/or OLPC sub-frame mode information.
The TDD of Serving cell is reshuffled notice UE by eNB.Particularly, eNB sends the TDD reconfiguration information of Serving cell to multiple UE through physical layer, wherein, the content in TDD reconfiguration information can include but not limited to the following:
1) up-descending reconfiguration information of TDD;
2) OLPC sub-frame mode information; Or
3) up-descending reconfiguration information of TDD and OLPC sub-frame mode information.
Further, for above-mentioned reconfiguration information defines new DCI, in order to notify that on CSS the TDD of this Serving cell reshuffles, wherein up-descending reconfiguration information of TDD is included in that TDD is up-descending to reshuffle in territory and/or OLPC sub-frame mode information is included in OLPC sub-frame mode territory.
Above-mentioned reconfiguration information of reshuffling for the TDD of notification service community also can be used in PDSCH, and by multiple, the PDSCH resource taken can support that the UE of TDDeIMTA dispatches respectively, utilize at UE search volume (USS) by the downlink resource of C-RNTI (CellRadioNetworkTemporaryIdentifier, Cell Radio Network Temporary Identifier/Identity, Cell-RNTI) scrambling license (DLgrant).
The Signalling Designing of up-descending reconfiguration information of TDD is as follows:
A) TDD of one or more carrier component (CarrierComponent, CC) is up-descending reshuffles.
I) notify that the TDD of each different (varied) carrier component is up-descending respectively to reshuffle.
Carrier identification territory (CarrierIndicatorField, CIF) and reshuffle accordingly to be carried on and express in L1 signaling.
Ii) up-descending the reshuffling of the TDD of multiple carrier component is transmitted together.
-there is no CIF
If a carrier component is re-equipped and puts, transmit TDD (weight) configuration of all carrier components according to the ascending order of carrier component index or descending.
-there is CIF
Reshuffling of these different carrier components is transmitted with CIF.
B) signaling of the TDD configuration combination of multiple carrier component
Via the candidate that the TDD (weight) of the one or more combination respectively containing multiple carrier component of more high-rise transmission configures.
The notice of the candidate of the TDD configuration of the combination configured is carried in PHY signaling.
C) for having the signal of reshuffle one group of identical (or many groups) carrier component
Divide into groups having the carrier component that identical TDD reshuffles, this information is via more high-rise transmission.
The group index and the TDD that send the group of reshuffling reshuffle.
If a CC is re-equipped and puts, the TDD sending multiple groups according to the ascending order of group index or descending reshuffles.
The Signalling Designing of OLPC sub-frame mode information is as follows:
A) the bitmap mode in OLPC sub-frame mode information, and each position (bit, bit) represents the parameter set of OLPC.
Due to 7 TDD reshuffle in have maximum 5 subframes flexibly, therefore maximum 5 positions may be used for notifying through bitmap mode.
In these 5 flexibly subframe, if be configured with down link (DL) subframe in Serving cell, because downlink subframe does not need up-link power to control (ULPC), corresponding position will be left in the basket in OLPC sub-frame mode.
B) signaling consumption is reduced by more high-level signaling+L1 signaling
The sub-frame mode (2 of configuration candidate
5the subset of individual sub-frame mode) and sub-frame mode in for the parameter of different subframe collection, comprise different Po_cell, Po_ue collection (namely Po_ue1, Po_ue2 ..., Po_uek, } and parameter alpha).These configurations are through more high-rise transmission.
PHY (physics) layer signaling is used to indicate the sub-frame mode selected.
Suggestion 1-3 does position PHY instruction, depends on the sub-frame mode of provided candidate.
To describe below, when TDD reconfiguration information is on CSS, corresponding to the size of the TDD reconfiguration information of different Signalling Designing.
1) for each carrier component of reshuffling sends separately
-3 (the carrier component designator of the carrier component of reshuffling)+3 (TDD is up-descending to reshuffle) (optional, OLPC sub-frame mode)+" 0 " ,+1-3/5 position is for other position; Or
-identical with DCI1C size, with the situation that a new RNTI specific to community (cell-specific) (Radio Network Temporary Identifier) identifies for different districts;
-identical with DCI1C size, with multiple RNTI specific to TP (TP-specific) for multiple HTN scene with same cells mark, these RNTI specific to TP are via more high-level signaling transmission.
2) for all carrier components of reshuffling send together
-configure maximum 7 carrier components, to avoid the CIF in CSS, [3 (TDD is up-descending to reshuffle)+1-3/5 positions (optional, OLPC sub-frame mode)] * 7, according to the ascending order of carrier component index;
-for the carrier component of not reshuffling, carrying zero-bit or duplicate message can be changed into;
-identical with DCI1C/1A/2A (1A/2A has 1-3/5-position OLPC sub-frame mode) size, with a new situation identified for different districts specific to the RNTI of community;
-identical with DCI1C/1A (1A/2A has 1-3/5-position OLPC sub-frame mode) size, with multiple RNTI specific to TP for multiple HTN scene with same cells mark, these RNTI specific to TP are via more high-level signaling transmission.
3) for the TDD of multiple carrier component reshuffles combination transmission
(designator of the combination that the TDD of multiple carrier component reshuffles)+" 0 " ,-1-N position is for other position;
● the maximum number of the combination of candidate is 2
n;
● if 5 carrier components are configured at the most, then have maximum 7
5plant combination, so about N=15 position will be enough to them to distinguish;
● for reducing aerial signaling, also less number of combinations can be selected;
-for reducing aerial signaling, the subset of the TDD configuration combination of multiple carrier component can be supported by more high-rise configuration;
PHY signaling bear in the DCI that-one notice having configured combination is defined by the present invention.
-because OLPC sub-frame mode is specific to carrier component (CC-specific), also be, different carrier components has different level of interference (interferencelevel) in different sub-frame set, OLPC sub-frame mode territory to only have when providing the OLPC sub-frame mode of the one or more carrier components in combination and just can be thought better of, and OLPC sub-frame mode information can be combined as basis to send with one;
-identical with DCI1C size, with a new situation identified for different districts specific to the RNTI of community;
-identical with DCI1C size, with multiple RNTI specific to TP for multiple HTN scene with same cells mark, these RNTI specific to TP are via more high-level signaling transmission.
4) send for having reshuffle one group of identical (or many groups) carrier component.Special example is each carrier component is a carrier component group
(TDD is up-descending to reshuffle)+" 0 " ,+3 ,-1-3 position (carrier component group designator) is for other position; Or
-[1-3 position (carrier component group designator)+3 (TDD is up-descending to reshuffle)] * N, according to the ascending order of carrier component group index.N is the quantity of the carrier component group of reshuffling;
-multiple carrier component is assigned to different groups, and group configuration is via more high-rise transmission;
-because OLPC sub-frame mode is specific to carrier component, also be, the different level of interference of different carrier components in different sub-frame set, OLPC sub-frame mode information only has just when providing the OLPC sub-frame mode of all carrier components in group and be thought better of;
-identical with DCI1C/1A (1A, wherein 5≤N≤7) size, with a new situation identified for different districts specific to the RNTI of community;
-identical with DCI1C/1A (1A, wherein 5≤N≤7) size, with multiple RNTI specific to TP for multiple HTN scene with same cells mark, these RNTI specific to TP are via more high-level signaling transmission.
To the DCI format used in the new DCI introduced, this new DCI on above-mentioned CSS and existing specification, there is formed objects, the complexity of blind decoding can't be increased.But, very important because carrying out to cyclic redundancy check (CRC) code (CRC) added burden that descrambling brings with new RNTI.In order to reduce the extra descrambling burden that new RNTI introduces, the signaling of reshuffling is set to only transmit in specific sub-frame, such as, and subframe #0 (subframe#0).
The advantage expressing L1 signaling of reshuffling on CSS is, can save signaling consumption.But, owing to not having the A/N of common signaling (commonsignaling) to feed back, need to think better of integrity problem to avoid the interference that loss because reshuffling TDD or false retrieval cause.In order to improve on CSS with the reliability that the TDD of UE-group common way reshuffles, provide following solution:
1). there is the e that high CCE (control channel particle, controlchannelelement) is polymerized level) PDCCH;
2). long CRC territory;
3). repeat transmission over multiple subframes, such as, No. #0 in a frame and #1 work song frame, can carry out carrier component combination to reduce PDCCH error rate.
In addition, also provide the A/N of the public PHY signaling of this UE-group, be similar to the A/N of the PDCCH that SPS (semi-persistent scheduling) discharges.
Both are all correctly decoded to eNB and UE reshuffling signaling, reshuffle and can come into force in the next frame.Then, in the next frame, UE reshuffles lower work at the TDD of notified Serving cell.
Based on the A/N of the public PHY signaling of UE-group, consider following alternative to strengthen reliability and the robustness of expressing L1 signaling schemes.
-ACK->NACK, or signaling is lost, and retransmits the public PHY signaling of UE-group;
-NACK->ACK, UE returns to the process worked under the semi-static configuration of Serving cell as traditional UE (legacyUE), or the configuration before returning to Serving cell, the down link ignored in conflict subframe (collisionsubframes) distributes and up link license (grant);
Wherein, ACK->NACK represents that UE is correctly decoded and reshuffles signaling, but has replied NACK message mistakenly, NACK->ACK represents that UE is not correctly decoded and reshuffles signaling, but error return ACK message.
In addition, macrocell and picocell are shared to the HTN scene of same cell ID, if same cell ID is being shared with another community in the Serving cell of eNB, then the multiple RNTI specific to TP will through more high-rise transmission.
As mentioned above, up-descending reconfiguration information of the TDD on USS and OLPC sub-frame mode information can be included in signaling block, design class be similar on CSS those.
In addition, if TDD reconfiguration information is used on CSS, comprise up-descending signaling block of reshuffling of TDD of different carrier component, the OLPC sub-frame mode designator of each carrier component of reshuffling, territory as escribed above, and the TDD of other neighbor cell up-downstream arrangements, can for all support TDDeIMTA UE pass at same PDSCH uploading resource.
In some cases, above-mentioned signaling block can comprise the TDD of the different carrier component of Serving cell up-descending reshuffle and the TDD of other neighbor cell up-downstream arrangements.So UE can calculate OLPC sub-frame mode based on up-descending the reshuffling of these TDD.
Above-mentioned PDSCH resource is dispatched respectively by the UE of multiple support TDDeIMTA, utilizes and is permitted by the different down links of the C-RNTI scrambling on USS.
For the HTN with same cells mark, multiple signaling block can distribute to multiple UE having in up-descending different TP reshuffled of different TDD.
The advantage of the TDD reconfiguration information on USS is:
1) A/N for PDSCH enhances up-descending reliability of reshuffling of TDD;
2) more signaling information can transmit on PDSCH;
3) by notice neighbor cell TDD up-downstream arrangements, OLPC sub-frame mode can send stealthyly.
But shortcoming is also obvious, also, consume more aerial signaling on PDCCH by exclusive DCI, these exclusive DCI utilize TDD reconfiguration information to indicate PDSCH resource.
Owing to replying the A/N of PDSCH in use, therefore to improve reliability and the robustness of this programme, also can apply above-mentioned same alternative.
It should be noted that the present invention can realize with the combination of software or software restraint; Such as, can be realized by ASIC (application specific integrated circuit), all-purpose computer or other similar hardware device.
Software program of the present invention can be performed to realize abovementioned steps or function by processor.Similarly, software program of the present invention (comprising relevant data structure) can be stored in computer read/write memory medium, such as RAM memory, magnetic or optical drive, flash disk and other similar devices.In addition, part steps of the present invention or function can be realized by hardware, and such as, circuit and processor cooperation perform various function or step.
In addition, a part of the present invention can be used as computer program, and such as, computer program instructions, when being performed by computer, this instruction can be called by the operation of computer or provide according to method of the present invention and/or technical scheme.In addition, call can be stored according to the program command of method of the present invention fixing or in portable storage medium, and/or by the broadcast on other signaling bearer medium or data flow, and/or being stored in the working storage of computer equipment, this computer equipment works based on described program command.At this, comprise a kind of equipment according to one embodiment of present invention, this equipment comprises the storage memory of computer program instructions and the processor for performing this program command, wherein, when computer program instructions is executed by processor, this equipment is triggered operation according to the method for the multiple embodiment of the present invention and/or technical scheme.
To those skilled in the art, very clearly, the present invention not limit by the details of above-mentioned exemplary embodiment, and the present invention can be realized by other embodiment, and does not deviate from spirit of the present invention or essential characteristic.Therefore, in any case, embodiment should be understood to be exemplary, indefiniteness, scope of the present invention by the claim of enclosing but not these descriptions limit, the change case of all scope and implication that should fall into the IF-AND-ONLY-IF element of claim all should be covered by the invention.Reference numeral in claims should not be understood to the restriction to involved claim.In addition, significantly, word " comprises " unit and step of not getting rid of other, and singulative does not get rid of plural number form formula.System claims state in multiple unit or module also can be realized by software or hardware by individual unit or module.The term of similar " first ", " second " for representing title, and does not represent specific order.
Claims (15)
1. the evolved base station for reshuffling to the TDD of notification of user equipment Serving cell, wherein, described evolved base station is configured to:
-send the TDD reconfiguration information of described Serving cell to multiple subscriber equipment through physical layer, wherein, described TDD reconfiguration information comprises at least one item in the following:
Up-descending reconfiguration information of-TDD;
-OLPC sub-frame mode information.
2. evolved base station as claimed in claim 1, wherein, described TDD reconfiguration information comprises up-descending reconfiguration information of TDD;
Wherein, up-descending reconfiguration information of described TDD up-descending reconfiguration information of TDD that comprises one or more carrier component further.
3. evolved base station as claimed in claim 1 or 2, wherein, described TDD reconfiguration information comprises OLPC sub-frame mode information;
Wherein, described OLPC sub-frame mode information comprises maximum 5 positions further, and it indicates the interference from neighbor cell in the bitmap mode of each carrier component of reshuffling.
4. evolved base station as claimed in claim 1, wherein, described TDD reconfiguration information comprises up-descending reconfiguration information of TDD;
Wherein, described evolved base station is configured to:
-via more high-rise, one or more candidate comprising the TDD configuration of the combination of multiple carrier component is respectively sent to described multiple subscriber equipment;
Wherein, up-descending reconfiguration information of described TDD comprises the candidate be configured of the TDD configuration of a combination further.
5. the evolved base station as described in claim 1 or 4, wherein, described TDD reconfiguration information comprises OLPC sub-frame mode information;
Wherein, described evolved base station is configured to:
-send to described multiple subscriber equipment via the more high-rise candidate by the sub-frame mode comprising the combination of one or more carrier component;
Wherein, described OLPC sub-frame mode information comprises the mark of the candidate be configured of sub-frame mode further.
6. evolved base station as claimed in claim 1, wherein, described TDD reconfiguration information comprises up-descending reconfiguration information of TDD;
Wherein, described evolved base station is configured to:
-divide into groups having the carrier component that identical TDD reshuffles, and via more high-rise, grouping information is sent to described multiple subscriber equipment;
Wherein, up-descending reconfiguration information of described TDD comprises the group index of the group of reshuffling and TDD reshuffles further.
7. the evolved base station as described in claim 1 or 6, wherein, described TDD reconfiguration information comprises OLPC sub-frame mode information, and all carrier components have identical TDD in a group and reshuffle;
Wherein, described OLPC sub-frame mode information comprises the sub-frame mode of each carrier component further.
8. the evolved base station according to any one of claim 1-7, wherein said TDD reconfiguration information is used for public search space or PDSCH.
9. evolved base station as claimed in claim 8, TDD reconfiguration information wherein for public search space is included in a new DCI, and described new DCI has up-descending OLPC sub-frame mode territory of reshuffling territory and/or comprising OLPC sub-frame mode information of the TDD comprising up-descending reconfiguration information of TDD.
10. evolved base station as claimed in claim 9, wherein, described evolved base station is configured to further:
-in subframe #0, send described DCI, and repeat to send described DCI in subframe #1.
11. evolved base station according to any one of claim 8-10, wherein, described TDD reconfiguration information is used for public search space;
Wherein, described evolved base station is configured to further:
-receive from described multiple subscriber equipment with the response of ACK/NACK message;
If at least one is replied NACK message or misses described signaling in-described multiple subscriber equipment, then retransmit described reconfiguration information at least one subscriber equipment described.
12. evolved base station according to any one of claim 8-11, wherein, described TDD configuration information is used for public search space;
Wherein, described evolved base station is configured to further:
-in heterogeneous network scene, via more high-rise, multiple RNTI specific to TP being sent to described multiple subscriber equipment, same cell ID is shared in Serving cell and another community of wherein said evolved base station.
13. evolved base station as claimed in claim 8, wherein, described TDD reconfiguration information is used for PDSCH;
Wherein, described TDD reconfiguration information is described multiple subscriber equipment transmission in identical PDSCH resource, and described PDSCH resource is permitted to dispatch respectively by the different down links of user equipment searches C-RNTI scrambling spatially by each utilization in described multiple subscriber equipment.
14. 1 kinds for obtaining the subscriber equipment of the TDD reconfiguration information of Serving cell, wherein, described subscriber equipment is configured to:
-receiving the down link control information on public search space via physical layer, described down link control information is for notifying that the TDD of described Serving cell reshuffles, and wherein, described Downlink Control Information comprises at least one item in the following:
-TDD is up-descending reshuffles territory, wherein comprises up-descending reconfiguration information of TDD;
-OLPC sub-frame mode territory, wherein comprises OLPC sub-frame mode information;
If-be correctly decoded received described down link control information, then reply ACK message to described Serving cell, if be not correctly decoded received described down link control information, then reply NACK message to described Serving cell;
If-be correctly decoded received described Downlink Control Information, then reshuffle work based on the TDD of notified described Serving cell in the next frame.
15. subscriber equipmenies as claimed in claim 14, wherein, described subscriber equipment is configured to:
-when signalling error appears in the signaling of described down link control information, then return to configuration or the semi-static configuration before of described Serving cell.
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| PCT/CN2013/081219 WO2015018082A1 (en) | 2013-08-09 | 2013-08-09 | An eNB for notifying UE the TDD reconfiguration of the serving cell |
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| WO2015018082A1 (en) | 2015-02-12 |
| CN105493593B (en) | 2020-06-26 |
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