CN1741680A - Optimal cell identification feedback method and internal node B fast cell selecting method - Google Patents
Optimal cell identification feedback method and internal node B fast cell selecting method Download PDFInfo
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Abstract
A method for feeding optimum cell identification ( OCI ) back and fast selection method of cell in node B includes measuring down link channel quality of multicell by user device and feeding OCI back to node B through synchronous offset domain in high speed common shared information channel , comparing it with temporary cell identification by dispatching controller controlled by source cell high speed media access in node B , setting up communication channel between object cells corresponding to OCI by dispatching controller if the two are not the same , then transmitting state information to object cell being used to finalize data transmission as per state information .
Description
Technical field
The present invention relates to the digital mobile communication technical field, be particularly related in third generation time division SCDMA (TD-SCDMA) system, best cell sign is fed back to Node B from subscriber equipment, and the method for (Node-B) interior fast cell selection that realizes Node B in view of the above.
Background technology
The Release5 of TD-SCDMA system version has been introduced high speed downlink packet access (HSDPA:HighSpeed Downlink Packet Access) characteristic, and its purpose is to provide the downlink grouping traffic of higher rate, increases downlink capacity.Based on UMTS R4 framework, HSDPA is by introducing adaptive coding and modulating (AMC:Adaptive Modulation and Coding), mixing automatic repeat requests (HARQ:Hybrid Automatic Retransmission Request) and fast cell selects technology such as (FCS:Fast CellSelecion) to achieve the above object.
AMC: be a kind of a kind of data transmission policies of coming self adaptation system of setting the tone really and channel coding method according to wireless channel situation between NodeB and the UE (subscriber equipment).
HARQ mixes automatic repeat requests: the same with ARQ, HARQ feeds back NAK when receiving terminal fails correctly to receive packet, but different is, and do not abandon error data packets, but be used for combination, simultaneously, also not necessarily original packet that transmitting terminal is retransmitted.
The FCS fast cell is selected: (introduce related background art at the FCS overall application herein, be not only at TD-SCDMA, otherwise do not relate to soft handover for soft handover.), FCS can reduce descending interference.High speed data transmission system does not wish to carry out soft handover, because if allow soft handover, the interference of forward link can increase, but also can fetter the hardware resource of a plurality of base stations, and this is the situation of the undesirable appearance of system.
As shown in Figure 1, enter into the zone of Cell0 (sub-district 0), Cell1 (sub-district 1) and the overlapping covering of Cell2 (sub-district 3) as a UE who is using the HSDPA business.The Active Set of UE (Active SET) comprises Cell0, Cell1 and Cell2, and promptly UE can set up Radio Link respectively in Cell0, Cell1 and Cell2.If soft handover, then downlink data all sends at three Cell, UE receive simultaneously from the data of three Cell, finish merging; The affiliated separately NodeB of up direction, Cell0, Cell1 and Cell2 can receive the data from UE, and the treated RNC of being sent to (radio network controller) finishes merging.As seen, the characteristics of soft handover are data transmission simultaneously on a plurality of Radio Links.
FCS is then different, and UE selects best Radio Link according to measurement result, and gives corresponding NodeB the Cell of this Radio Link correspondence (calling " Best Cell (best cell) ") identification feedback, as shown in Figure 2, supposes the Cell2 that UE selects.So the HSDPA packet of next TTI (5ms) only sends at Best Cell (being the Cell2 among Fig. 2), UE also receives data in this sub-district.Utilize such mechanism, the HSDPA packet always can be selected to have the best channel condition Radio Link and transmit, thereby can obtain better data transmission quality for switching at a slow speed.Simultaneously, because the down direction transfer of data only carries out, send (soft handover) when having reduced multiple sectors at same and the down direction that causes disturbs on a best link.
Most important fast during fast cell is selected.Because the time-varying characteristics of channel, the variation that cell selecting need be caught up with channel could guarantee always at the good cell data transmission of channel quality.If it is slow that network terminal was reacted, cause channel conditions to change, data send and may carry out under the situation of this channel quality variation, can't achieve the goal.Based on this demand, the scheduling that generally believes the fast cell selection need be finished by NodeB, because if Best Cell ID (best cell sign) is reported RNC, dispatch the words of finishing relevant NodeB transmission data by RNC, have suitable one section time delay, be difficult to satisfy the data transmission requirement of next HSDPA.
FCS comprises (Inter-NodeB) two kinds between NodeB interior (intra-NodeB) and NodeB.Intra-NodeB FCS is meant that the sub-district of selection is controlled by same NodeB, comparatively speaking, controls fairly simplely, and processing delay is little.The sub-district of selecting among the Inter-NodeB FCS is controlled by different NodeB, and then the state synchronized between each sub-district implements more complicated, because there is not direct-connected passage between the NodeB, can only be undertaken by RNC or UE synchronously, and time delay is bigger, and complicated.Both compare, and Intra-NodeB FCS is nearer apart from practical application.
For the Intra-NodeB fast cell of TD-SCDMA system is selected, when UE is in regional that many sub-districts cover, primary task is to pass through the cell-of-origin, give NodeB with the Best CellID feedback information that measures, if Best Cell ID is different from the cell-of-origin, then under NodeB control, notification target sub-district (Best Cell ID), and with the synchronizing information of necessity such as the state untill further notice Target cell of data buffering area, afterwards, the data of HSDPA will send UE to by Target cell (Best Cell ID) next time.Because the source and target sub-district all belongs to same NodeB, Best Cell ID and state information become synchronously and are more prone to realize.In order to realize selecting fast, Best Cell id information preferably passes to NodeB as physical layer signaling information from UE.
Yet, based on present TD-SCDMA standard, Best Cell id information can't feed back to NodeB from UE in the mode of physical layer signaling, as shown in Figure 3, be not exclusively used in the data field that sends Best Cell id information owing to be used for the up control channel HS-SICH (high-speed shared information channel) of HSDPA at present, therefore can't satisfy this requirement.Below, this up control channel HS-SICH is done concise and to the point introduction.
In the HSDPA technical specification, on down direction, defined HS-DSCH (high speed descending sharing channel) and finished downlink data transmission at a high speed.Also defined simultaneously the shared control channel of two physical layers relevant: descending HS-SCCH (High-Speed Shared Control Channel) and up HS-SICH (high-speed shared information channel) with HS-DSCH, by the cooperation of these two control channels, finish the closed-loop control of transfer of data.
UE transmits affirmation information and the channel quality of HARQ with the HS-SICH channel, thereby provides feedback for packet scheduling and the re-transmission of NodeB.As shown in Figure 3, this channel is made up of following information field:
1 bit reply affirmation (ACK/NAK) if information---the data block that descending HS-DSCH go up to transmit is correctly received by UE, normal response (ACK, bit " 1 ") will be transmitted to Node B, give Node B otherwise UE will feed back negative response (NAK, bit " 0 ");
7 bit channel quality informations (Channel Quality Information, CQI)---comprise transport block set size (Transport Block Set Size, TBSS) modulation system (MF) information of information and 1 bit of 6 bits.In order to help Node B to select suitable modulation and coded system according to the residing channel condition of UE, UE need give Node B with the quality information feedback that receives.This quality information is the transfer resource that the following secondary data of UE suggestion sends, and comprises size, the modulation system of transport block set.
Like this, the information field of the HS-SICH of TD-SCDMA has 8bit (ACK/NAKlbit+TBSS6bit+MF lbit), become 84 bits through after the chnnel coding, in the process rate-matched with after interweaving, be mapped on the time slot 1, time slot 1 carries simultaneous bias (Synchronization Shift, SS) transmitting power of information and 2 bits control (the Transmit Power Control of 2 bits simultaneously, TPC) information forms the information of 88 bits altogether.
Afterwards, to time slot formatization, first data field is 44 bits, and training sequence (Midamble) is 144 chips (chips), and the back is the TPC information of the SS and 2 bits of 2 bits, and second data field is 40 bits.
This shows that because the HS-SICH channel is not used in the data field that transmits the best cell identification information, therefore, this information can't feed back to NodeB from UE in the mode of physical layer signaling, thereby also just can't realize the fast cell selection in the NodeB based on this.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of method that the best cell identification information is fed back to NodeB from UE, and the implementation method of the fast cell of a kind of Intra-NodeB selection, in order to Best Cell id information is fed back to NodeB in the mode of physical layer signaling from UE, and realize that based on this fast cell in the Node B selects.
The invention provides a kind of method that the best cell identification information is fed back to Node B from subscriber equipment, be used at time division duplexing synchronous CDMA system, when subscriber equipment is in regional that many sub-districts cover, give Node B with the best cell identification feedback with N Bit data width that measures, this method comprises the steps:
8 Bit data information to high-speed shared information channel are carried out chnnel coding, form the 86-N bit information;
86-N bit information after the chnnel coding is interweaved and mapping, and the time slot of mapping carries the synchronization shift information territory of N bit and the transmitting power control information territory of 2 bits simultaneously, wherein, fills described best cell identification information in the synchronization shift information territory;
When available high-speed shared information channel time slot arrived, the data message that will include the high-speed shared information channel of best cell identification information fed back to Node B.
The present invention and then the implementation method that fast cell is selected in a kind of Node B is provided, be used at time division duplexing synchronous CDMA system, when subscriber equipment is in regional that many sub-districts cover, give Node B with the best cell identification feedback that measures with N Bit data width, dispatched by Node B and to finish fast cell and switch, this method comprises the steps:
8 Bit data information to high-speed shared information channel are carried out chnnel coding, form the 86-N bit information;
86-N bit information after the chnnel coding is interweaved and mapping, and the time slot of mapping carries the synchronization shift information territory of N bit and the transmitting power control information territory of 2 bits simultaneously, wherein, fills described best cell identification information in the synchronization shift information territory;
When available high-speed shared information channel time slot arrived, the data message that will include the high-speed shared information channel of best cell identification information fed back to Node B;
After Node B receives described best cell identification information, its interim cell ID with oneself is compared, determine both differences by the scheduling controller of the cell-of-origin high speed media access control that is arranged in Node B;
Set up communication port between the Target cell corresponding by described scheduling controller, state information is delivered to Target cell with best cell sign;
Target cell is finished data passes according to described state information.
Wherein, described subscriber equipment measures the best cell identification of steps, comprising:
In Node B, set up cell ID and have the mapping relations of the interim cell ID of N Bit data width by radio network controller, when subscriber equipment enters many cell coverage areas, radio network controller by message with interim cell ID notifying user equipment;
Subscriber equipment is measured the downlink channel quality of many sub-districts, the top-quality sub-district of selective channel therefrom, and the sign of this sub-district identified as best cell.
Wherein, described 8 Bit data information comprise the transport block set size information of replying confirmation, 6 bits of 1 bit and the modulation system information of 1 bit, wherein, when chnnel coding, repeat 38-N time replying confirmation.
Wherein, described with the 86-N bit information after the chnnel coding interweave with the mapping after, further comprise data are carried out formative step, wherein, first data field is 44 bits, and training sequence is 144 chips, is the best cell identification information of N bit in the synchronization shift information territory, the transmitting power control information is 2 bits, and second data field is 38 bits.
Wherein, describedly set up communication port between the Target cell corresponding with best cell sign by described scheduling controller, state information is delivered to the Target cell step, and state information wherein comprises: priority tag, transmit Sequence Number, hybrid automatic repeat request (HARQ) sign, New Data Flag, incremental redundancy version number, buffer queue state, schedule information, buffer queue.
Wherein, described Target cell is finished the data passes step according to state information, comprises the steps:
The Target cell scheduling controller is determined next transmission data block, produces corresponding scheduling information;
If success, notification source sub-district confirm, and finish the transmission of data, if unsuccessful, then the notification source sub-district is refunded, and continues to send next data block by the cell-of-origin.
The present invention is under the situation that does not change the TD-SCDMA frame format, utilize the up SS bit that is not used as yet at present to transmit Best Cell ID, realized that end user device provides selected best cell information in the mode of physical layer signaling to network terminal, and based on this, realized the fast cell selection scheme in the Node B.This scheme can be improved the efficient of the HSDPA downlink data transmission of TD-SCDMA system effectively.
Description of drawings
Fig. 1 is the soft handover schematic diagram;
Fig. 2 selects schematic diagram for fast cell;
Fig. 3 is existing HS-SICH time slot format schematic diagram;
Fig. 4 is according to embodiments of the invention, the best cell identification feedback is given the flow chart of Node B;
Fig. 5 is according to the embodiment of the invention, is applied to the HS-SICH time slot format schematic diagram of FCS;
Fig. 6 is the MAC model of UTRAN side HSDPA;
Fig. 7 is according to embodiments of the invention, the realization flow figure of Intra-NodeB FCS.
Embodiment
Investigate the time slot format of HS-SICH channel shown in Figure 3, can find, although do not use up SS information field at present as yet, because under the existing standard, the data width that it has only 2 bits is not enough to fill cell identity information.Therefore, if the SS information field can be transform as the width that conforms to the bit of cell identity information, then can utilize this data field to transmit the best cell identification information.
In the TD-SCDMA system, subscriber equipment is set up the mapping relations of cell ID (Cell ID) and interim cell ID (Temporary Cell ID) in NodeB by radio network controller (RNC).When UE enters many cell area, RNC can be by corresponding message with Temporary Cell ID notice UE.If the data width of Temporary Cell ID is N bit (N 〉=2), can identify 2 among the NodeB altogether
NIndividual sub-district adopts N=4 that whole proposal is described among the present invention.
As shown in Figure 4,, give the schematic flow sheet of Node B, at first, 8 Bit data information of high-speed shared information channel are carried out chnnel coding, form 86-N bit information (step 401) the best cell identification feedback for according to embodiments of the invention; Then the 86-N bit information after the chnnel coding is interweaved and mapping, the time slot of mapping carries the synchronization shift information territory of N bit and the transmitting power control information territory of 2 bits simultaneously, wherein, in the synchronization shift information territory, fill described best cell identification information (step 402); When available high-speed shared information channel time slot arrived, the data message that will include the high-speed shared information channel of best cell identification information fed back to Node B (step 403).
By said method, UE just can feed back to NodeB with Best Cell ID by the SS territory among the HS-SICH after measuring the downlink channel quality of many sub-districts, selecting best sub-district.
Time slot format by the improved HS-SICH channel of said method as shown in Figure 5, two data fields are respectively 44 bits and 42-N bit, SS and TPC are N bit and 2 bits, the Midamble sequence is 144 chips.Part beyond the Midamble adopts the spreading code spread spectrum of SF=16.Contrast original time slot format (as shown in Figure 3), the SS information field of new time slot format becomes the N bit, and second data field becomes the 42-N bit by 40 bits.So just can under the situation that does not change the TD-SCDMA frame format, utilize the up SS bit that is not used as yet at present to transmit Best Cell ID.
Because the modification of time slot format, the digital coding mode of HS-SICH need to change.The NAK/ACK confirmation of 1 bit is original to be repeated 36 times, revises the back and repeats 38-N time, and other CQI comprise that coded system (MF) information field of 6 bit transfer pieces (Transport Block Set Size) and 1 bit is constant.After the coded system of modification information, the performance loss of ACK/NAK is about 15.36-10*log (38-N).To N is 4 situation (as shown in Figure 5), is about 0.25dB, but belongs to range of receiving.
Fig. 6 has represented UTRAN in the TD-SCDMA system (UMTS Terrestrial radio access network) side HSDPA MAC data processing model, radio link layer (RLC) data are sent to MAC (media interviews control) layer with the form of logic channel, and MAC is further divided into MAC-d sublayer and MAC-hs sublayer.MAC-d finishes a series of functions: logic channel is to multiplexing, encrypt/decrypt of the mapping of transmission channel, logic channel or the like.MAC-d provides data flow for MAC-hs, and wherein each data flow and certain specific scheduling attribute are associated.MAC-hs finishes the sublayer the relevant function with HSDPA.
MAC-hs (high speed media access control) receive from the data of MAC-d, under the control of scheduling/priority treatment (scheduling/Priority handling), suitable to these data as required cascade, add suitable data head and form a MAC-hs PDU, perhaps be called data block.MAC-hs PDU header comprises transmission sequence number (TSN:Transmission Sequence Number), priority tag (PCI:Priority Class Identifier) and other relevant informations.Particular priority queue under the PCI indication MAC-hs PDU, TSN is sequence identification MAC-hs PDU uniquely in this priority query more then, and the packet that may lose is submitted and detected to the order that is used to data at this sequence number of receiving terminal to.
According to priority the MAC-hs PDU data of Gui Leiing are sent to the HARQ entity and handle under the control of scheduling/Priority handling.In the MAC-hs of UTRAN side, each UE has a HARQ entity to be responsible for handling MAC-hs PDU data, and this HARQ is responsible for finishing transfer of data and re-transmission, and it guarantees that data pass to UE reliably.Whether packet retransmits the feedback information that depends on UE end, and wherein ACK represents that packet correctly receives, and can transmit next packet, and NAK represents that then packet fails correct the reception, needs to retransmit.A HARQ entity can comprise nearly 8 HARQ processes, and each process is used to handle the transmission of MAC-hs PDU data, and a HARQ entity is finished the HARQ process of SAW.Therefore, as the part of control information, the HARQ process ID will be that a crucial information is sent to the UE end by HS-SCCH.
The transmission that TFRC selects suitable transformat of (TFRC selection) entity selection and resource to be used for packet, determined transformat is by the form notice UE of signaling TRFI.
Based on above model, Intra-NodeB FCS is at the Target cell that determine to switch, and the control information of Target cell and cell-of-origin and quene state etc. need be got up synchronously, just can finish the correct transmission of next packet at Target cell.
As shown in Figure 7,, carry out the method for FCS in the Node B, at first 8 Bit data information of high-speed shared information channel are carried out chnnel coding, form 86-N bit information (step 701) for according to embodiments of the invention; Then the 86-N bit information after the chnnel coding is interweaved and mapping, the time slot of mapping carries the synchronization shift information territory of N bit and the transmitting power control information territory of 2 bits simultaneously, wherein, in the synchronization shift information territory, fill described best cell identification information (step 702); When available high-speed shared information channel time slot arrived, the data message that will include the high-speed shared information channel of best cell identification information fed back to Node B (step 703); After Node B receives described best cell identification information, its interim cell ID with oneself is compared, determine both differences (step 704) by the scheduling controller of the cell-of-origin high speed media access control that is arranged in Node B; Set up communication port between the Target cell corresponding by described scheduling controller, state information is delivered to Target cell (step 705) with best cell sign; Target cell is finished data passes (step 706) according to described state information.
In step 704, Node B obtains Best Cell id information, and by interface notice scheduling controller, scheduling controller compares oneself interim cell ID and Best Cell ID, if identical showing need not to switch, the feedback information ACK/NAK according to the HS-DSCH packet that obtains finishes corresponding scheduling controlling then; If find that the interim cell ID of this sub-district is different with Best Cell ID, then need to switch.
In step 705, switch if desired, scheduling controller is set up sub-district (Target cell) passage that is identified with Best Cell ID, and relevant state information is delivered to Target cell.These state informations comprise: priority tag (PCI:Priority Class Identifier), transmit Sequence Number (TSN:Transmit Sequence Number), HARQ process identification (PID) (HID:HARQ ProcessorIdentifier), New Data Flag (NDI:New Data Indicator), incremental redundancy version number (IRVN:incremental redundancy) buffer queue state, schedule information (as the re-transmission state), buffer queue and other relevant informations.
In step 706, Target cell is finished data passes according to dispatch state and relevant information.At first produce the HS-SCCH frame, comprise data field: HID, NDI, TRFI, IRVN and UE ID.HS-SCCH is called as out-of-band signalling information as the signaling information of the signaling channel transmission of HS-DSCH.Other some signaling information is followed MAC-hs PDU and is transmitted together, promptly in the header of MAC-hs PDU, is called as in-band signalling.Comprise: PCI, TSN.Secondly, produce the HS-DSCH packet.In two kinds of situation, a kind of is the new MAC-hs PDU packet of next transmission.Then scheduling controller produces corresponding M AC-hs PDU according to the synchronizing information that sends from the cell-of-origin, then by appropriate H ARQ process, selects suitable transformat that transfer of data is arrived UE.Another kind of situation is a data re-transmission.Promptly next transmission is not new MAC-hs PDU packet, but retransmits incremental redundancy, and scheduling controller control produces incremental redundancy, finishes next data and transmits.
Claims (10)
1, a kind of method that the best cell identification information is fed back to Node B from subscriber equipment, be used at time division duplexing synchronous CDMA system, when subscriber equipment is in regional that many sub-districts cover, give Node B with the best cell identification feedback that measures with N Bit data width, it is characterized in that, comprise the steps:
8 Bit data information to high-speed shared information channel are carried out chnnel coding, form the 86-N bit information;
86-N bit information after the chnnel coding is interweaved and mapping, and the time slot of mapping carries the synchronization shift information territory of N bit and the transmitting power control information territory of 2 bits simultaneously, wherein, fills described best cell identification information in the synchronization shift information territory;
When available high-speed shared information channel time slot arrived, the data message that will include the high-speed shared information channel of best cell identification information fed back to Node B.
2, the method for claim 1 is characterized in that, described subscriber equipment measures the best cell identification of steps, comprising:
In Node B, set up cell ID and have the mapping relations of the interim cell ID of N Bit data width by radio network controller, when subscriber equipment enters many cell coverage areas, radio network controller by message with interim cell ID notifying user equipment;
Subscriber equipment is measured the downlink channel quality of many sub-districts, the top-quality sub-district of selective channel therefrom, and the sign of this sub-district identified as best cell.
3, the method for claim 1, it is characterized in that described 8 Bit data information comprise the transport block set size information of replying confirmation, 6 bits of 1 bit and the modulation system information of 1 bit, wherein, when chnnel coding, repeat 38-N time replying confirmation.
4, the method for claim 1, it is characterized in that, described with the 86-N bit information after the chnnel coding interweave with the mapping after, comprise further data carried out formative step that wherein, first data field is 44 bits, training sequence is 144 chips, be the best cell identification information of N bit in the synchronization shift information territory, the transmitting power control information is 2 bits, and second data field is 38 bits.
5, the implementation method that fast cell is selected in a kind of Node B, be used at time division duplexing synchronous CDMA system, when subscriber equipment is in regional that many sub-districts cover, give Node B with the best cell identification feedback that measures with N Bit data width, dispatch by Node B and to finish fast cell and switch, it is characterized in that, comprise the steps:
8 Bit data information to high-speed shared information channel are carried out chnnel coding, form the 86-N bit information;
86-N bit information after the chnnel coding is interweaved and mapping, and the time slot of mapping carries the synchronization shift information territory of N bit and the transmitting power control information territory of 2 bits simultaneously, wherein, fills described best cell identification information in the synchronization shift information territory;
When available high-speed shared information channel time slot arrived, the data message that will include the high-speed shared information channel of best cell identification information fed back to Node B;
After Node B receives described best cell identification information, its interim cell ID with oneself is compared, determine both differences by the scheduling controller of the cell-of-origin high speed media access control that is arranged in Node B;
Set up communication port between the Target cell corresponding by described scheduling controller, state information is delivered to Target cell with best cell sign;
Target cell is finished data passes according to described state information.
6, method as claimed in claim 5 is characterized in that, described subscriber equipment measures the best cell identification of steps, comprising:
In Node B, set up cell ID and have the mapping relations of the interim cell ID of N Bit data width by radio network controller, when subscriber equipment enters many cell coverage areas, radio network controller by message with interim cell ID notifying user equipment;
Subscriber equipment is measured the downlink channel quality of many sub-districts, the top-quality sub-district of selective channel therefrom, and the sign of this sub-district identified as best cell.
7, method as claimed in claim 5, it is characterized in that described 8 Bit data information comprise the transport block set size information of replying confirmation, 6 bits of 1 bit and the modulation system information of 1 bit, wherein, when chnnel coding, repeat 38-N time replying confirmation.
8, method as claimed in claim 5, it is characterized in that, described with the 86-N bit information after the chnnel coding interweave with the mapping after, comprise further data carried out formative step that wherein, first data field is 44 bits, training sequence is 144 chips, be the best cell identification information of N bit in the synchronization shift information territory, the transmitting power control information is 2 bits, and second data field is 38 bits.
9, method as claimed in claim 5, it is characterized in that, describedly set up communication port between the Target cell corresponding with best cell sign by described scheduling controller, state information is delivered to the Target cell step, and state information wherein comprises: priority tag, transmit Sequence Number, hybrid automatic repeat request (HARQ) sign, New Data Flag, incremental redundancy version number, buffer queue state, schedule information, buffer queue.
10, method as claimed in claim 5 is characterized in that, described Target cell is finished the data passes step according to state information, comprises the steps:
The Target cell scheduling controller is determined next transmission data block, produces corresponding scheduling information;
If success, notification source sub-district confirm, and finish the transmission of data, if unsuccessful, then the notification source sub-district is refunded, and continues to send next data block by the cell-of-origin.
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| CN101669398B (en) * | 2007-04-24 | 2013-07-10 | 株式会社Ntt都科摩 | Mobile communication method, radio base station, mobile station, processor |
| CN101690371B (en) * | 2007-05-01 | 2012-08-08 | 株式会社Ntt都科摩 | Base station device and communication control method |
| US7801089B2 (en) | 2007-10-10 | 2010-09-21 | Huawei Technologies Co., Ltd. | Encoding method and apparatus for frame synchronization signal |
| WO2009049545A1 (en) * | 2007-10-10 | 2009-04-23 | Huawei Technologies Co., Ltd. | Method and apparatus for encoding the frame synchronization signal |
| WO2010034182A1 (en) * | 2008-09-04 | 2010-04-01 | 大唐移动通信设备有限公司 | Method and device for mimo transmission in high speed packet access evolution system |
| US8848735B2 (en) | 2008-09-04 | 2014-09-30 | China Academy Of Telecommunications Technology | Method and device for MIMO transmission in high speed packet access evolution system |
| CN101965008A (en) * | 2009-07-21 | 2011-02-02 | 中兴通讯股份有限公司 | Cell partitioning report and data transmission method and system |
| CN101965008B (en) * | 2009-07-21 | 2014-11-26 | 上海中兴软件有限责任公司 | Cell partitioning report and data transmission method and system |
| CN102083187B (en) * | 2010-01-15 | 2013-02-20 | 电信科学技术研究院 | Method, system and device for transmitting uplink information and processing uplink information |
| WO2011085639A1 (en) * | 2010-01-15 | 2011-07-21 | 电信科学技术研究院 | Method, system and device for transmitting uplink information and processing uplink information |
| CN102083187A (en) * | 2010-01-15 | 2011-06-01 | 大唐移动通信设备有限公司 | Method, system and device for transmitting uplink information and processing uplink information |
| CN103081371A (en) * | 2010-09-03 | 2013-05-01 | 富士通株式会社 | Channel state feedback for multi-cell MIMO |
| CN103081371B (en) * | 2010-09-03 | 2016-02-03 | 富士通株式会社 | Method in MIMO communication network and subscriber equipment, wireless communication system |
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