CN1731705A - TD-SCDMA system multi-carrier high-speed downstream packet access realization method - Google Patents
TD-SCDMA system multi-carrier high-speed downstream packet access realization method Download PDFInfo
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Abstract
The invention discloses a method for realizing downgoing sectionalization switch-in with multi carrier wave and high speed in TD-SCDMA system. The invention includes equipping HS-PDSCH on multi carrier wave in the multi carrier wave district, one UE can be allocated with a plurality of HS-PDSCH on multi carrier wave; MAC-HS splits downgoing data of each UE and sends out them, MAC-HS of UE will receive data from multi carrier and merges data; node B and the HARQ that's equal with UE will separately process HARQ protocol from multi carrier wave, every HARQ can process a plurality HARQ threads and marked with carrier wave and thread number; on each carrier wave with HS-PDSCH is allocated with corresponding HS-SCCH and HS-SICH channel; the HS-PDSCH physical channel related controlling information is transferred on a group of HS-SCCH and HS-SICH on the same carrier wave.
Description
Technical field
The present invention relates to field of mobile communication, particularly (Time DivisionSynchronization Code Division Multiple Access, TD-SCDMA) in the system, a kind of multi carrier wave high-speed downlink grouping inserts implementation method to TD SDMA.
Background technology
A disequilibrium that important feature is the traffic carrying capacity of professional uplink and downlink link of 3-G (Generation Three mobile communication system), the traffic carrying capacity of down link will general traffic carrying capacity greater than up link.At this demand, 3GPP (3rd Generation Partnership Proect, third generation collaborative program) has introduced HSDPA (High Speed Downlink Packet Access, high speed downlink packet inserts) characteristic in the 3G standard.
In the HSDPA characteristic, by introducing AMC (Adaptive Modulation and Coding, adaptive coding and modulating), HARQ (Hybrid Automatic Retransmission Request, mix automatic repeat requests) technology and the relevant technology that reduces the network processes time delay, the downlink grouping traffic speed of higher rate is provided, improves spectrum utilization efficiency.
The AMC technology is determined current channel capacity according to the situation (channel condition information CSI) of channel, determines suitable code modulation mode etc. according to capacity, so that send information to greatest extent, realizes than higher speed; And at each user's variations, but AMC can both provide the Modulation and Coding Scheme of respective change, thereby has improved the transmission rate and the availability of frequency spectrum.
HARQ is a kind of error correction method that traditional ARQ (Automatic Retransmission Request, automatically repeat requests) technology and FEC (Forward Error Correct, forward error correction) technology are combined.The sign indicating number that transmitting terminal sends not only can detect mistake, but also has certain error correcting capability.After the receiving terminal reception information, if error situation in error correcting capability, then carries out error correction automatically, if exceeded the error correcting capability of error correcting code, but can detect, then receiving terminal feeds back to the corresponding signal of transmitting terminal, requires transmitting terminal to retransmit.
In the HSDPA technology, HS-DSCH (High Speed Downlink SharedChannel, high speed descending sharing channel) and MAC-hs (high speed media access control) sublayer have newly been introduced.Realize in Node B at network side MAC-hs, be used for carrying out the transfer of data of HS-DSCH transmission channel.In Node B, each sub-district has a MAC-hs entity (entity), and MAC-hs not only finishes HS-DSCH data processing and scheduling, is in charge of the management and the distribution of HSDPA physical resource simultaneously.MAC-hs comprises that flow control, scheduling/priority control, HARQ function, TFRC select functional entitys such as (Transport Format and Resource Choice, transformat and resource selection).In the MAC-hs entity of Node B side, the corresponding HARQ entity of each UE is carried out N-Channel SAW (See And Wait) Protocol (N channel stop-and-wait protocol), and what promptly this HARQ entity was carried out is the N-channel-SAW-HARQ agreement.A HARQ entity is corresponding to a plurality of HARQ processes, and in the agreement of present 3GPP about TD-SCDMA, the HARQ entity of a UE can comprise 8 HARQ processes (process) at most, and different HARQ processes identifies by processID (process number).The corresponding HARQ process of HS-DSCHTTI.In the UE side, MAC-hs entity of a UE comprises the HARQ function, distributes, reorders and the decomposition function entity.HARQ entity wherein and the HARQ entity among the Node B are peer-entities, the HARQ process that comprises similar number, each process forms protocol entity one to one by the process of process Id and Node B side, is used for the reception of MAC-hs PDU (protocol Data Unit) packet.If the data of the reception that receiving terminal is correct, up HS-SICH channel (high-speed shared information channel) feeding back ACK signal then by describing below, the HARQ process of Node B side discharges this packet.Otherwise, if fail correct the reception, the buffer memory soft data, and by HS-SICH feedback NAK signal, the transmitter side process is retransmitted this packet, promptly HARQ entity handles MAC-hs PDU packet retransmits and is undertaken by process.
In TD-SCDMA system HSDPA technology, the new HS-DSCH transmission channel of introducing is mapped on the HS-PDSCH (High Speed Physical Downlink Shared Channel, high-speed physical downlink is shared physical channel) of new introducing.The HS-PDSCH channel is that a plurality of users share in the mode that time-division or sign indicating number divide in the sub-district.The Transmission Time Interval TTI of HS-PDSCH (Transmission TimeInterval) is 5ms.HS-PDSCH carrying be user's business datum, transmit and be used for phase related control information that HS-PDSCH the receives HS-SCCH that follows (High-Speed Shared Control Channel) by new introducing, HS-SICH is used for the transmission of uplink feedback information.Therefore, these three kinds of physical channels are formed a physical layer closed loop, and they all are that the TTI of 5ms is that unit handles and transmits, and this short TTI is the time-varying characteristics of adaptive radio link better.Wherein the control information of carrying on the HS-SCCH channel comprises: HARQ Process ID, redundancy versions, New Data Flag, HS-SCCH cyclic sequence HCSN, UE ID, modulation system MF, transmission block size sign and physical channel resources; The carrying feedback information comprises on the HS-SICH channel: the correct transmission of the modulation system RMF of recommendation, the transmission block of recommendation size RTBS and data is confirmation ACK/NAK whether.In addition, for the transmission of RRC signaling, 3GPP has also defined the accompanied by physical channel of up-downgoing in R5, is used to carry the relevant RRC signaling with HSDPA.
According to present 3GPP agreement, in the TD-SCDMA system, sub-district and carrier frequency are corresponding one by one.The channel resource configuration method that HSDPA in the single-carrier cell is relevant is: 1 HS-DSCH, many HS-SCCH are with every HS-SCCH HS-SICH one to one.When network side is UE configuration HS-DSCH resource, dispose 1～4 HS-SCCH, constitutes 1 HS-SCCH collection, dispose simultaneously and every HS-SCCH HS-SICH one to one.In carrying out the HS-DSCH data transmission procedure, each HS-DSCH TTI, Node B sends the relevant control channel of HS-DSCH at a HS-SCCH channel, and UE obtains these information by reading this channel, and sends feedback information on a HS-SICH channel corresponding with this HS-SCCH.In Node B side, each HS-DSCHTTI at certain UE, selects a HS-SCCH to use to UE by MAC-hs, promptly sends the relevant control channel of HS-DSCH to this UE on this HS-SCCH channel.In the UE side, if having a HS-SCCH to distribute to UE, do not use by its HS-SCCH collection, this HS-SCCH collection of UE continuous monitoring then, compare by the sign that reads " UE sign " information and UE self on the HS-SCCH, therefrom search for that HS-SCCH that is given this UE by actual allocated, up to the HS-SCCH channel that finds to distribute this UE, next TTI begins, only monitor and receive this HS-SCCH, use the control information of its carrying to receive the HS-DSCH data, and on a HS-SICH channel of this HS-SCCH correspondence, send feedback information, up at certain TTI, UE can not read the UE sign that conforms to oneself at this HS-SCCH, maybe can not read this HS-SCCH, then UE monitors the HS-SCCH collection that is assigned with again, is worth finding a HS-SCCH who distributes to this UE.
Foregoing description is about the HSPDA of TD-SCDMA system technology in the present 3GPP agreement.Yet, TD-SCDMA system in the 3GPP agreement is a single-carrier system at present, i.e. corresponding carrier frequency in sub-district, the spectrum width of single carrier frequency is 1.6M, because TD-SCDMA adopts the TDD mode of relative arrowband, theoretical peak speed on the single carrier wave can reach 2.8Mbps, and available descending peak rate is on the low side on the single carrier wave, can not satisfy the demand of operator to the high-speed packet data service in future well.Therefore, need be that some technological improvements are carried out on the basis with single-carrier cell HSDPA technology, to satisfy operator's demand higher to high-speed packet data service.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of TD-SCDMA system multi-carrier high-speed downstream grouping to insert implementation method, on the basis that the single-carrier cell high speed downlink packet inserts, by setting up multi-carrier district, the packet of user's high speed downlink packet access can be transmitted simultaneously on a plurality of carrier waves.
The invention provides a kind of TD-SCDMA system multi-carrier high-speed downstream grouping and insert implementation method, comprising:
Set up a multi-carrier district by network side, and configuration high-speed Physical Downlink Shared Channel resource at least one carrier wave therein;
Sharing mode so that time-division and/or sign indicating number divide is the high-speed physical downlink shared channel (HS-PDSCH) resource on described at least one carrier wave of the user equipment allocation in the sub-district;
Dispose at least one group of High-Speed Shared Control Channel of configuration and high-speed shared information channel on the carrier wave of high-speed physical downlink shared channel (HS-PDSCH) at each, wherein, a descending High-Speed Shared Control Channel and a up high-speed shared information channel are one group;
Will the control information relevant be configured on one group of High-Speed Shared Control Channel on the same carrier wave and the high-speed shared information channel and transmit with the high-speed physical downlink shared channel (HS-PDSCH) on the carrier wave;
Network side high speed media access control entity is shunted the downlink data of the high speed descending sharing channel of each subscriber equipment, and the data allocations of shunting is sent to the high-speed physical downlink shared channel (HS-PDSCH) of described at least one carrier wave;
The high speed media access control entity of user equipment side receives the high speed descending sharing channel downlink data from the high-speed physical downlink shared channel (HS-PDSCH) of described at least one carrier wave, and it is merged,
Wherein, in the described data distribution process, by the corresponding automatic repeat requests functional entity of mixing in the high speed media access control entity of network side and user equipment side, independently handle simultaneously the automatic repeat requests agreement of mixing on each carrier wave, the automatic repeat requests protocol processes of mixing on each carrier wave comprises a hybrid automatic repeat request process at least, each process is identified by carrier wave and process number, and the hybrid automatic repeat request process that Node B is identical with carrier wave in the subscriber equipment and process number is identical is corresponding one by one.
Further, in the data distribution process, network side node B number sends to subscriber equipment with the hybrid automatic repeat request process on each carrier wave on the High-Speed Shared Control Channel of distributing to this subscriber equipment of this carrier wave; In user equipment side, subscriber equipment feeds back to Node B by sending on the high-speed shared information channel on the same carrier wave corresponding with High-Speed Shared Control Channel, comprises correct transmission whether confirmation and channel quality indication (CQI) information.
The present invention allows the packet of a user's HSDPA to transmit on a plurality of carrier waves simultaneously by adopting the multi-carrier HSDPA technology, and Node B can send on a plurality of carrier waves simultaneously, and UE can receive the data of HSDPA on a plurality of carrier waves.Owing to can provide the peak traffic speed of 2.8Mbps on the single carrier wave, so under the multicarrier situation, can improve single user's service rate greatly.In theory, N carrier wave worked simultaneously and can be provided up to N * 2.8Mbps business for the user.The present invention has not only solved the available descending peak rate of the single carrier HSDPA technology problem on the low side in the present TD-SCDMA system, improved the descending peak rate that the TD-SCDMA system can provide greatly, especially greatly improve single user's downlink business peak rate, and can accomplish the single carrier HSDPA technology in the complete compatible TD-SCDMA system.
Description of drawings
Fig. 1 is the schematic flow sheet that TD-SCDMA system multi-carrier high-speed downstream grouping of the present invention inserts implementation method;
Fig. 2 is a TD-SCDMA system multi-carrier HSDPA technology of the present invention, carries out the schematic diagram that concerns of data distribution and merging and HS-PDSCH, HS-SCCH and HS-SICH physical channel and carrier wave at MAC-hs.
Embodiment
As shown in Figure 1, the schematic flow sheet for TD-SCDMA system multi-carrier high-speed downstream grouping access implementation method of the present invention comprises:
Set up a multi-carrier district by network side, and configuration high-speed Physical Downlink Shared Channel resource (step 101) at least one carrier wave therein;
Sharing mode so that time-division and/or sign indicating number divide is the high-speed physical downlink shared channel (HS-PDSCH) resource (step 102) on described at least one carrier wave of the user equipment allocation in the sub-district;
Dispose at least one group of High-Speed Shared Control Channel of configuration and high-speed shared information channel on the carrier wave of high-speed physical downlink shared channel (HS-PDSCH) at each, wherein, a descending High-Speed Shared Control Channel and a up high-speed shared information channel are one group (step 103);
Will the control information relevant be configured in transmission (step 104) on one group of High-Speed Shared Control Channel on the same carrier wave and the high-speed shared information channel with the high-speed physical downlink shared channel (HS-PDSCH) on the carrier wave;
Network side high speed media access control entity is shunted the downlink data of the high speed descending sharing channel of each subscriber equipment, and the data allocations of shunting is sent (step 105) to the high-speed physical downlink shared channel (HS-PDSCH) of described at least one carrier wave;
The high speed media access control entity of user equipment side receives the high speed descending sharing channel downlink data from the high-speed physical downlink shared channel (HS-PDSCH) of described at least one carrier wave, and it is merged (step 106),
Wherein, in the described data distribution process, by the corresponding automatic repeat requests functional entity of mixing in the high speed media access control entity of network side and user equipment side, independently handle simultaneously the automatic repeat requests agreement of mixing on each carrier wave, the automatic repeat requests protocol processes of mixing on each carrier wave comprises a hybrid automatic repeat request process at least, each process is identified by carrier wave and process number, and the hybrid automatic repeat request process that Node B is identical with carrier wave in the subscriber equipment and process number is identical is corresponding one by one.
Should illustrate that above-mentioned steps does not have temporal sequencing, just for clearer description the present invention.
In multi-carrier district, the same with the HSDPA technology of single-carrier cell, downstream data traffic sends by the HS-DSCH transmission channel, and the MAC layer comprises a MAC-hs sublayer.Transmission channel HS-DSCH is mapped on the HS-PDSCH physical channel, the control information that the HS-PDSCH physical channel is followed sends on descending HS-SCCH physical channel and up HS-SICH physical channel, and they are all being that the TTI of 5ms is that unit handles and transmits.
According to the present invention, in multi-carrier district, physical channel HS-PDSCH is configured on one or more carrier waves, these HS-PDSCH physical channels be in the sub-district a plurality of users with the time-division or/and the mode that sign indicating number divides share.UE can be distributed the HS-PDSCH physical channel resources on one or more carrier wave simultaneously.
Realize in Node B that in network side MAC-hs sublayer each sub-district has a MAC-hs entity, MAC-hs finishes the scheduling of HS-DSCH data and the allocation manager of HS-PDSCH physical channel resources.And the HS-DSCH downlink data of each UE shunted, the data allocations of shunting is sent to the HS-PDSCH physical channel of one or more carrier wave.MAC-hs comprises flow control, the control of scheduling/priority, data distribution, HARQ function, functional entitys such as TFRC selection.
In the MAC-hs sublayer of UE side, MAC-hs entity of a UE, the data on a plurality of carrier waves that MAC-hs will receive simultaneously merge.MAC-hs comprises the HARQ function, and data merge, and distribution is reordered and functional entity such as decomposition.
The HARQ functional entity is that unit handles with the carrier wave in the MAC-hs entity.In Node B and UE the equity the HARQ functional entity in, handle simultaneously the HARQ agreement on a plurality of carrier waves independently, HARQ protocol processes on each carrier wave can comprise a plurality of HARQ processes, concrete each process is by carrier wave and process Id (process number) sign, and Node B (Node B) is corresponding one by one with the middle HARQ process that carrier wave is identical and prcess Id is identical of UE (subscriber equipment).HARQprocess Id on each carrier wave sends to UE on the HS-SCCH physical channel of distributing to this UE of this carrier wave.
Dispose on the carrier wave of HS-PDSCH physical channel one group of configuration or organize HS-SCCH and the HS-SICH physical channel more at each, a descending HS-SCCH physical channel and a up HS-SICH physical channel are one group.
The control information relevant with HS-PDSCH physical channel on the carrier wave transmitted on one group of HS-SCCH on the same carrier wave and HS-SICH physical channel.
Of the present inventionly set up a multi-carrier district step by network side, this process can be initiated in the NBAP agreement (NBAP Node B Application Protocol Node B application protocol) that (Cell Setup) process is set up in the sub-district and Common transport channel foundation (Common Transport Channel Setup) process realizes by RNC to Node B by Iub interface.The details of these two processes can be with reference to " the Iub interface technical specification _ 040906_v1 of TD-SCDMA system ".Multi-carrier district of the present invention comprises the carrier resource of one or more TD-SCDMA system, and sets up and dispose other common signal channel and other resource in this multi-carrier district.
Network side of the present invention disposes HS-PDSCH physical channel resources step on one or more carrier wave in multi-carrier district, this process can be realized by Iub interface Physical Shared Channel (PhysicalShared Channel Reconfiguration) process of reshuffling in Node B initiation NBAP agreement by RNC (radio network controller).In " PHYSICAL SHAREDCHANNEL RECONFIGURATION REQUEST " message, increase the carrier frequency information unit, with the carrier frequency attribute of indication HSDPA related physical channel.
Particularly, " HS-PDSCH TDD Information " with the single-carrier cell system, " Addto HS-SCCH Resource Pool ", " Modify HS-SCCH Resource Pool " and " Deletefrom HS-SCCH Resource Pool " dispose different with the form of information unit, in the multi-carrier district system, above-mentioned information unit can be revised as the form of information unit tabulation, in each list information unit, remove and comprise " HS-PDSCH TDD Information " in the single-carrier cell system, " Addto HS-SCCH Resource Pool ", in " Modify HS-SCCH Resource Pool " and " Deletefrom HS-SCCH Resource Pool " information unit outside all information units, can also increase the frequency information unit, as " UARFCN " information unit, indicate HS-PDSCH, HS-SCCH, the carrier frequency information in multi-carrier district of HS-SICH physical channel configuration.
Of the present invention is high-speed physical downlink shared channel (HS-PDSCH) resource step on described at least one carrier wave of user equipment allocation in the sub-district, can comprise following two aspects:
1, in certain sub-district, distribute the HS-PDSCH physical channel resources to give certain UE at network side, according to the ability of UE, these physical channels can be distributed on one or more carrier wave that has disposed the HS-PDSCH channel in this sub-district.
This process can be realized to Radio Link foundation (Radio Link Setup) process and synchronised radio link reconfigure (the Synchronised RadioLink Reconfiguration) process that Node B initiates in the NBAP agreement by Iub interface by RNC.In " RADIO LINK SETUP REQUEST " and " RADIO LINK RECONFIGURATION PREPARE " message, can increase carrier frequency list information unit, as " UARFCN Information ", wherein comprise zero or a plurality of " UARFCN " information unit, maximum N-1 " UARFCN " information units, wherein N represents that this cell configuration has all carrier wave numbers of HS-PDSCH physical channel resources, distributes to the carrier frequency information of carrier wave at HS-PDSCH physical channel place of this HS-PDSCH RL of this UE with clear and definite indication; When carrier frequency list information unit comprises zero " UARFCN " information unit, when not comprising carrier frequency list information unit in the promptly above-mentioned message, represent that the HS-PDSCH physical channel on all carrier waves can be distributed to this UE use in this sub-district.Can also increase a carrier wave number information unit in addition, as " Number of UARFCN ", the carrier wave number of indicating this UE to use simultaneously, this numerical value need consider that the UE ability is provided with.
Simultaneously, increase the carrier frequency information unit in " RADIO LINK SETUP RESPONSE ", " RADIO LINKRECONFIGURATION READY " and " RADIO LINK RECONFIGURATIONRESPONSE " message, Node B is with this HS-SCCH on RNC indication corresponding carriers and the configuration information of HS-SICH physical channel and HARQ.
Particularly, increase " UARFCN " information unit in " HS-SCCH Specific Information Response LCR " the list information unit in " HS-DSCH TDD Information Response " information unit; Perhaps " HS-SCCH SpecificInformation Response LCR " the list information unit in the present 3GPP agreement is modified as the list information unit that includes carrier frequency information, in each list information unit, comprise " UARFCN " information unit and " HS-SCCHSpecific Information Response LCR " list information unit, Node B is with the HS-SCCH sets of physical channels and the corresponding HS-SICH sets of physical channels thereof of the relevant control information of this HS-PDSCH physical channel on each carrier wave of RNC indication carrying.The HS-SICH physical channel maximum number of HS-SCCH physical channel number and correspondence thereof is identical with single-carrier system on each carrier wave, promptly 4.Can the list information unit of carrier frequency information will be included instead in " the CHOICE HARQMemory Partitioning " information unit in " HS-DSCH TDD Information Response " information unit, in each list information unit, comprise in " UARFCN " information unit and " CHOICE HARQ MemoryPartitioning " information unit, to indicate the HARQ Memory Partitioning information on each carrier wave.Operation about " HS-SCCH Specific Information Response LCR " information unit and " CHOICE HARQ Memory Partitioning " information unit, if, then operate at each carrier wave in this list information unit by comprising that carrier frequency list information unit indicates the carrier frequency information at HS-PDSCH physical channel place; If do not comprise the carrier frequency list information unit of the carrier frequency information that is used to refer to HS-PDSCH physical channel place, then operate at all carrier waves that disposed the HS-PDSCH physical channel resources in this sub-district.
2, in certain sub-district, distribute the HS-PDSCH physical channel resources to UE, these physical channels can be distributed on one or more carrier wave that has disposed the HS-PDSCH channel in this sub-district.
This process can connect the process (RRC connection establishment) of setting up by the Uu interface to the RRC that UE initiates in the RRC agreement by RNC, radio bearer is set up process (radio bearerestablishment), radio bearer reconfiguration course (radio bearer reconfiguration), radio bearer dispose procedure (the radio bearer release), transmission channel reconfiguration course (transportchannel reconfiguration), physical channel reconfiguration course (physical channelreconfiguration), cell updating course processes such as (cell update) realizes, at corresponding " RRCCONNECTION SETUP ", " RADIO BEARER SETUP ", " RADIO BEARERRECONFIGURATION ", " RADIO BEARER RELEASE ", " TRANSPORTCHANNEL RECONFIGURATION ", " PHYSICAL CHANNELRECONFIGURATION ", increase the carrier frequency information unit in " CELL UPDATE CONFIRM " message, with indicate on each carrier wave HSDPA related physical channel and the configuration information of HARQ.
Particularly, can be in the TDD option in " CHOICE mode " information unit in the information unit " Downlink HS-PDSCH Information " in " 1.28Mcps " option, increase carrier frequency list information unit, as " UARFCN Information ", wherein comprise one or more " UARFCN " information unit, these information units comprise the carrier frequency information that disposes the some or all of carrier wave of HS-PDSCH physical channel in this sub-district, distribute to the carrier frequency information at HS-PDSCH physical channel place of this HS-PDSCH RL of this UE with indication.Can also increase a carrier wave number information unit in addition, as " Number of UARFCN ", the multicarrier number of indicating this UE to support.This numerical value is provided with according to the UE ability.
Simultaneously, can be in " HS-SCCH Info " information unit " TDD " increases " UARFCN " information unit in " HS-SCCH Set Configuration " the list information unit in the information unit in " 1.28Mcps " option; Perhaps " HS-SCCH SetConfiguration " the list information unit in the present 3GPP agreement is modified as the list information unit that includes carrier frequency information, in each list information unit, comprise " UARFCN " information unit and " HS-SCCH SetConfiguration " list information unit, indicating on each carrier wave, the HS-SCCH and the HS-SICH sets of physical channels of the control information that carrying is relevant with HS-PDSCH physical channel on this carrier frequency.The HS-SICH physical channel maximum number of physical channel number that the HS-SCCH physical channel is concentrated on each carrier wave and correspondence thereof is identical with single-carrier system, promptly 4.Can in " HS-DSCH " information unit in " Added orReconfiguredDL TrCH information HARQ Info " information unit, organize by carrier wave by " HARQ Info " information unit, in " HS-DSCH " information unit, increase carrier frequency list information unit, each list information unit comprises " UARFCN " information unit and " HARQ Info " information unit, to indicate the configuration information of " HARQ Info " on each carrier wave.All " UARFCN " information units of the carrier frequency information at indication HS-PDSCH physical channel place should be corresponding one by one and identical with all " UARFCN " information units of indication HS-SCCH physical channel and " HARQ Info ".
As shown in Figure 2, be TD-SCDMA system multi-carrier HSDPA technology of the present invention, carry out the schematic diagram that concerns of data distribution and merging and HS-PDSCH, HS-SCCH and HS-SICH physical channel and carrier wave at MAC-hs.
According to the present invention, the shunting of downlink data data sends, and receives merging process, can illustrate by the following aspects (but should be noted that these aspects do not have temporal order, be the present invention for more detailed description):
1, the UE that has distributed the HSDPA resource at certain, in network side Node B, each TTI, the MAC-hs entity receives the downlink data that sends to this UE from RNC, according to the multi-carrier capability of this UE with distribute to the carrier wave number (being the value of above-mentioned carrier wave number information unit) that this UE can use simultaneously, service priority, the situation of HS-PDSCH physical channel resources and the feedback information of UE are determined the HS-DSCH transmission channel downlink data of this UE is sent on the HS-PDSCH of one or more carrier wave channel.
2, at each carrier wave of determining that is used for sending HS-DSCH transmission channel downlink data, each TTI, the MAC-hs entity selects appropriate H S-PDSCH physical channel to be used for carrying HS-DSCH transmission channel up-downgoing data from this carrier wave the assignable HS-PDSCH physical channel, and HS-SCCH on same carrier wave and concentrated one group of HS-SCCH and the HS-SICH physical channel chosen of HS-SICH physical channel from distributing to this UE, the HS-PDSCH physical channel control information on this carrier wave that use HS-SCCH channel wherein will be distributed to this UE sends to UE.
3, in network side Node B, each TTI, the MAC-hs entity is used for carrying out the carrier number of HS-DSCH transmission channel downlink data transmission according to distribution, and the bearer cap of the HS-PDSCH physical channel on each carrier wave, the downlink data of HS-DSCH is diverted on each corresponding carrier wave.
4, in network side Node B, the HARQ functional entity is that unit handles with the carrier wave in the MAC-hs entity, a UE has a HARQ functional entity in the MAC-hs of Node B entity, handle the HARQ agreement on a plurality of carrier waves during this HARQ functional entity independent same, the HARQ protocol processes on each carrier wave can comprise a plurality of several HARQ processes.Each TTI, the corresponding HARQ process of each carrier wave, Node B sends to UE by the HS-SCCH physical channel of distributing to this UE on this carrier wave respectively with the process Id that each is assigned with the HARQ process on the carrier wave that is used for sending HS-DSCH transmission channel downlink data.With respect to single carrier, a HARQ functional entity can comprise more a plurality of several HARQ processes, but to each carrier wave, maximum HARQ process number can still be set to 8.As to 3 carrier cells, a HARQ functional entity can comprise that maximum HARQ process numbers can be set at 24,8 of each carrier waves.
5, in network side Node B, each TTI uses the corresponding HS-PDSCH physical channel on each carrier wave that distributes to send HS-DSCH transmission channel downlink data.
6, UE is on all carrier waves at the HS-PDSCH physical channel place that HS-PDSCH RL distributes, each TTI, the HS-SCCH collection of this UE is distributed in continuous monitoring on all carrier waves, compare by the sign that reads " UE sign " information and UE self on the HS-SCCH, therefrom search for each carrier wave and given that HS-SCCH of this UE by actual allocated, up to the HS-SCCH channel that finds to distribute this UE, next TTI begins, on this carrier wave, only monitor and receive this HS-SCCH, use the control information of its carrying to receive HS-PDSCH physical channel on this carrier wave.And on a HS-SICH channel on the same carrier wave of this HS-SCCH correspondence, send feedback information to NodeB, up at certain TTI, UE can not read the UE sign that conforms to oneself at this HS-SCCH, maybe can not read this HS-SCCH, then the UE continuous monitoring HS-SCCH collection that is assigned to this UE on this carrier wave again finds a HS-SCCH who distributes to this UE once more up to certain TTI.
If comprise carrier wave number information unit in the corresponding message in processes such as aforementioned sub-district foundation, then search the HS-SCCH physical channel number (being the carrier wave number) of distributing to this UE when identical as UE with value in the carrier wave number information unit, the HS-SCCH physical channel that then on all carrier waves, stops search, only monitoring and receive HS-SCCH channel on the corresponding carriers that UE searched; When UE searches when distributing to this UE HS-SCCH physical channel number (being the carrier wave number) less than the value in the carrier wave number information unit, UE monitoring also receives outside the HS-SCCH channel on the corresponding carriers that UE searched, also need carry out the HS-SCCH physical channel search carrier wave of HS-SCCH physical channel (searched except) on all carrier waves at the HS-PDSCH physical channel place that HS-PDSCH RL distributes.
7, in the UE side, each TTI, according to the control information that receives on the HS-SCCH physical channel on one or more carrier wave of its monitoring and reception, on one or more carrier wave identical, receive the HS-PDSCH physical channel with these HS-SCCH physical channel carrier waves about the HS-PDSCH physical channel.
8, in the UE side, handle the HARQ agreement on a plurality of carrier waves during HARQ functional entity independent same, the HARQ protocol processes on each carrier wave can comprise a plurality of several HARQ processes.Each TTI, UE according to monitor from corresponding carriers and receive the process Id of the HARQ process that receives of HS-SCCH physical channel, with the HARQ process on carrier wave and the process Id sign corresponding carriers, and carry out independent process.And, on the HS-SICH physical channel on the same carrier wave of HS-SCCH correspondence, send feedback information to Node B, whether confirmation ACK/NAK and channel quality are indicated (CQI) to comprise correct transmission.
9, in the UE side, each TTI, the HS-DSCH downlink data that the MAC-hs entity will receive from the HS-PDSCH physical channel of one or more carrier wave merges, and is submitted to the upper strata.
Above-mentioned multi-carrier HSDPA technology about the TD-SCDMA system, on the specific implementation of method, can take various ways, for example, on to the structure that is fit to information unit of the present invention, both can take method that the information unit of single carrier HSDPA technology is made amendment, and also can adopt to keep relevant single carrier message unit, increase the method for multicarrier information unit in addition.In multi-carrier district, the carrier frequency attribute of the single carrier message unit of reservation is by the carrier frequency indication of an acquiescence, as main carrier in the multi-carrier district (definition of main carrier can with reference to " the Iub interface technical specification _ 040906_v1 of TD-SCDMA system ").Increasing the multicarrier information unit can be a list information unit, in each list information unit, increase and comprise a frequency information unit, as " UARFCN " information unit, and comprise all information units that comprise in the corresponding information unit in the single-carrier cell system, be used to refer in the multi-carrier district HS-PDSCH on the corresponding carrier frequency, HS-SCCH, the configuration information of HS-SICH physical channel.
For example, set up in the multi-carrier district process of the present invention, " HS-PDSCH TDD Information " in the single-carrier cell system, " Add to HS-SCCH Resource Pool ", in " Modify HS-SCCH Resource Pool " and " Delete from HS-SCCH Resource Pool " information unit, can increase a corresponding list information unit respectively, in each list information unit, increase and comprise a frequency information unit, as " UARFCN " information unit, and comprise " HS-PDSCH TDD Information " in the single-carrier cell system respectively, " Add to HS-SCCHResource Pool ", comprise all information units in " Modify HS-SCCH Resource Pool " and " Delete from HS-SCCHResource Pool " information unit, be used to refer in the multi-carrier district HS-PDSCH on the corresponding carrier frequency, HS-SCCH, the configuration information of HS-SICH physical channel.Wherein the carrier frequency attribute of " the HS-PDSCH TDD Information " of the single-carrier cell system of Bao Liuing, " Add to HS-SCCHResource Pool ", " Modify HS-SCCH Resource Pool " and " Delete from HS-SCCHResource Pool " information unit is by the indication of an acquiescence carrier frequency, as main carrier in the multi-carrier district.
Claims (13)
1, a kind of TD-SCDMA system multi-carrier high-speed downstream grouping inserts implementation method, on the basis that the single-carrier cell high speed downlink packet inserts, by setting up multi-carrier district, the packet of user's high speed downlink packet access can be transmitted on a plurality of carrier waves simultaneously, it is characterized in that this implementation method comprises:
Set up a multi-carrier district by network side, and configuration high-speed Physical Downlink Shared Channel resource at least one carrier wave therein;
Sharing mode so that time-division and/or sign indicating number divide is the high-speed physical downlink shared channel (HS-PDSCH) resource on described at least one carrier wave of the user equipment allocation in the sub-district;
Dispose at least one group of High-Speed Shared Control Channel of configuration and high-speed shared information channel on the carrier wave of high-speed physical downlink shared channel (HS-PDSCH) at each, wherein, a descending High-Speed Shared Control Channel and a up high-speed shared information channel are one group;
Will the control information relevant be configured on one group of High-Speed Shared Control Channel on the same carrier wave and the high-speed shared information channel and transmit with the high-speed physical downlink shared channel (HS-PDSCH) on the carrier wave;
Network side high speed media access control entity is shunted the downlink data of the high speed descending sharing channel of each subscriber equipment, and the data allocations of shunting is sent to the high-speed physical downlink shared channel (HS-PDSCH) of described at least one carrier wave;
The high speed media access control entity of user equipment side receives the high speed descending sharing channel downlink data from the high-speed physical downlink shared channel (HS-PDSCH) of described at least one carrier wave, and it is merged,
Wherein, in the described data distribution process, by the corresponding automatic repeat requests functional entity of mixing in the high speed media access control entity of network side and user equipment side, independently handle simultaneously the automatic repeat requests agreement of mixing on each carrier wave, the automatic repeat requests protocol processes of mixing on each carrier wave comprises a hybrid automatic repeat request process at least, each process is identified by carrier wave and process number, and the hybrid automatic repeat request process that Node B is identical with carrier wave in the subscriber equipment and process number is identical is corresponding one by one.
2, the method for claim 1, it is characterized in that, in the described shunting process, network side node B number sends to subscriber equipment with the hybrid automatic repeat request process on each carrier wave on the High-Speed Shared Control Channel of distributing to this subscriber equipment of this carrier wave; In user equipment side, subscriber equipment feeds back to Node B by sending on the high-speed shared information channel on the same carrier wave corresponding with High-Speed Shared Control Channel, comprises correct transmission whether confirmation and channel quality indication (CQI) information.
3, the method for claim 1, it is characterized in that, described network side is set up a multi-carrier district step, initiates in Node B application protocol sub-district by Iub interface to Node B by radio network controller and sets up process and Common transport channel and set up process and realize;
Described at least one carrier wave configuration high-speed Physical Downlink Shared Channel resource step, realize by the Physical Shared Channel reconfiguration course that radio network controller is initiated in the Node B application protocol to Node B by Iub interface;
Wherein, in the described Physical Shared Channel reconfiguration course, in " PHYSICAL SHAREDCHANNEL RECONFIGURATION REQUEST " message, increase the carrier frequency information unit, in order to the carrier frequency attribute of indication related physical channel.
4, the method of claim 1, it is characterized in that, described is in the high-speed physical downlink shared channel (HS-PDSCH) resource step on described at least one carrier wave of user equipment allocation in the sub-district, initiate to Node B by Iub interface by radio network controller that Radio Link in the Node B application protocol is set up process and synchronous radio is set up reconfiguration course, and the RRC that is initiated in the RRC agreement to subscriber equipment by the Uu interface by radio network controller connects the process of setting up, radio bearer is set up process, the radio bearer reconfiguration course, the radio bearer dispose procedure, the transmission channel reconfiguration course, the physical channel reconfiguration course, cell updating course is realized;
Wherein, set up process and synchronous radio is set up in the reconfiguration course at described Radio Link, in " RADIO LINK SETUP REQUEST " and " RADIO LINK RECONFIGURATIONPREPARE " message, increase carrier frequency list information unit, it comprises N-1 carrier frequency information unit at the most, wherein N represents all carrier wave numbers of the high-speed physical downlink shared channel (HS-PDSCH) resource of this cell configuration, clearly to indicate the carrier frequency information of the carrier wave at the high-speed physical downlink shared channel (HS-PDSCH) place of distributing to this subscriber equipment;
Simultaneously, increase the carrier frequency information unit in " RADIO LINK SETUP RESPONSE ", " RADIO LINKRECONFIGURATION READY " and " RADIO LINK RECONFIGURATIONRESPONSE " message, Node B is indicated High-Speed Shared Control Channel and high-speed shared information channel on the corresponding carriers and the configuration information that mixes automatic repeat requests with this to radio network controller.
5, method as claimed in claim 4, it is characterized in that, in described " RADIO LINK SETUPREQUEST " and " RADIO LINK RECONFIGURATION PREPARE " message, further increase a carrier wave number information unit, in order to the carrier wave number of indicating this subscriber equipment to use simultaneously.
6, method as claimed in claim 4, it is characterized in that, described is in the high-speed physical downlink shared channel (HS-PDSCH) resource step on described at least one carrier wave of user equipment allocation in the sub-district, further initiates RRC in RRC agreement by the Uu interface to subscriber equipment by radio network controller and connects the process of setting up, radio bearer and set up process, radio bearer reconfiguration course, radio bearer dispose procedure, transmission channel reconfiguration course, physical channel reconfiguration course, cell updating course and realize;
Wherein, increase the carrier frequency information unit in described process corresponding " RRC CONNECTION SETUP ", " RADIOBEARER SETUP ", " RADIO BEARER RECONFIGURATION ", " RADIOBEARER RELEASE ", " TRANSPORT CHANNEL RECONFIGURATION ", " PHYSICAL CHANNEL RECONFIGURATION ", " CELL UPDATECONFIRM " message, to indicate high speed downlink packet access related physical channel on each carrier wave and the configuration information that mixes automatic repeat requests.
7, the method of claim 1, it is characterized in that, described network side high speed media access control entity with the downlink data of each subscriber equipment shunt and forwarding step in, distributed the subscriber equipment of high-speed down ward grouped access resource at certain, in network side node B, each transmission time interval, high speed media access control entity receives the downlink data that sends to this subscriber equipment from network controller, according to the multi-carrier capability of this subscriber equipment with distribute to the carrier wave number that this subscriber equipment can use simultaneously, service priority, the situation of high-speed physical downlink shared channel (HS-PDSCH) physical channel resources and the feedback information of subscriber equipment are determined the high speed descending sharing channel downlink data of this subscriber equipment is sent on the high-speed physical downlink shared channel (HS-PDSCH) of at least one carrier wave.
8, the method of claim 1, it is characterized in that, described network side high speed media access control entity with the downlink data of each subscriber equipment shunt and forwarding step in, at each carrier wave of determining that is used for sending the high speed descending sharing channel downlink data, each transmission time interval, high speed media access control entity selects to be used for carrying the high-speed physical downlink shared channel (HS-PDSCH) of the downlink data on the high speed descending sharing channel the assignable high-speed physical downlink shared channel (HS-PDSCH) from this carrier wave, and it is concentrated from High-Speed Shared Control Channel on same carrier wave and the high-speed shared information channel of distributing to this subscriber equipment, choose one group of High-Speed Shared Control Channel and high-speed shared information channel, the high-speed physical downlink shared channel (HS-PDSCH) control information on this carrier wave that use High-Speed Shared Control Channel wherein will be distributed to this subscriber equipment sends to subscriber equipment.
9, the method for claim 1, it is characterized in that, described network side high speed media access control entity with the downlink data of each subscriber equipment shunt and forwarding step in, in network side node B, each transmission time interval, high speed media access control entity is used for carrying out the carrier number of high speed descending sharing channel downlink data transmission according to distribution, and the bearer cap of the high-speed physical downlink shared channel (HS-PDSCH) physical channel on each carrier wave, the downlink data of high speed descending sharing channel is diverted on each corresponding carrier wave.
10, the method for claim 1, it is characterized in that, described network side high speed media access control entity with the downlink data of each subscriber equipment shunt and forwarding step in, in network side node B, each transmission time interval uses the corresponding high-speed physical downlink shared channel (HS-PDSCH) on each carrier wave that distributes to send the high speed descending sharing channel downlink data.
11, the method for claim 1, it is characterized in that, the high speed media access control entity of described user equipment side receives and merges in the downlink data step, each transmission time interval, according to the control information that receives on the High-Speed Shared Control Channel at least one carrier wave of its monitoring and reception, at least one carrier wave identical, receive high-speed physical downlink shared channel (HS-PDSCH) with these High-Speed Shared Control Channel carrier waves about high-speed physical downlink shared channel (HS-PDSCH).
12, the method of claim 1, it is characterized in that, the high speed media access control entity of described user equipment side receives and merges in the downlink data step, subscriber equipment is on all carrier waves at the high-speed physical downlink shared channel (HS-PDSCH) place of distributing, each transmission time interval, the High-Speed Shared Control Channel collection of this subscriber equipment is distributed in continuous monitoring on all carrier waves, compare by the sign that reads " customer equipment identification " information and this subscriber equipment self on the High-Speed Shared Control Channel, therefrom search for each carrier wave and given that High-Speed Shared Control Channel of this subscriber equipment by actual allocated, up to the High-Speed Shared Control Channel that finds to distribute to this subscriber equipment, from next transmission time interval, on this carrier wave, only monitor and receive this High-Speed Shared Control Channel, use the control information of its carrying to receive high-speed physical downlink shared channel (HS-PDSCH) on this carrier wave, and on a high-speed shared information channel on the same carrier wave of this High-Speed Shared Control Channel correspondence, send feedback information to Node B, up at certain transmission time interval, subscriber equipment can not be read the user ID that conforms to oneself at this High-Speed Shared Control Channel, maybe can not read this High-Speed Shared Control Channel, then this subscriber equipment continuous monitoring High-Speed Shared Control Channel collection of being assigned to this subscriber equipment on this carrier wave again finds a High-Speed Shared Control Channel distributing to this subscriber equipment once more up to certain transmission time interval.
13, method as claimed in claim 5, it is characterized in that, the high speed media access control entity of described user equipment side receives and merges in the downlink data step, when the value in the carrier wave number information unit of user equipment searches in the High-Speed Shared Control Channel number of distributing to this subscriber equipment and corresponding message is identical, the High-Speed Shared Control Channel that then on all carrier waves, stops search, only monitoring and receive High-Speed Shared Control Channel on the corresponding carriers that subscriber equipment searched; When user equipment searches to the High-Speed Shared Control Channel number of distributing to this subscriber equipment during less than the value in the described carrier wave number information unit, subscriber equipment is except that monitoring and receive the High-Speed Shared Control Channel on the corresponding carriers that subscriber equipment searched, also need carry out the High-Speed Shared Control Channel search on all carrier waves at the high-speed physical downlink shared channel (HS-PDSCH) place of distributing.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100909246A CN100352243C (en) | 2005-08-19 | 2005-08-19 | TD-SCDMA system multi-carrier high-speed downstream packet access realization method |
| EP06775419.2A EP1916790B1 (en) | 2005-08-19 | 2006-08-18 | Method for implementing hsdpa for td-scdma |
| PCT/CN2006/002101 WO2007019807A1 (en) | 2005-08-19 | 2006-08-18 | Method for implement hsdpa for td-scdma |
| KR1020087005557A KR101256155B1 (en) | 2005-08-19 | 2006-08-18 | Method for implement hsdpa for td-scdma |
| US12/063,872 US7969948B2 (en) | 2005-08-19 | 2006-08-18 | Method for implementing HSDPA for TD-SCDMA |
| HK08108157.4A HK1117666A1 (en) | 2005-08-19 | 2008-07-23 | Method for implementing hsdpa for td-scdma |
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| CNB2005100909246A CN100352243C (en) | 2005-08-19 | 2005-08-19 | TD-SCDMA system multi-carrier high-speed downstream packet access realization method |
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