CN102684821A - Transmission method and transmission system of multi-carrier high speed downlink packet access (HSDPA), base station and user equipment - Google Patents
Transmission method and transmission system of multi-carrier high speed downlink packet access (HSDPA), base station and user equipment Download PDFInfo
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Abstract
The invention discloses a transmission method and a transmission system of multi-carrier high speed downlink packet access (HSDPA), a base station and a user equipment. The method includes that: a base station NodeB determines a high speed-physical downlink shared channel (HS-PDSCH) on scheduled carrier waves of the user equipment (UE), high speed-downlink shared channel (HS-DSCH) transmission blocks, HS-DSCH control information, a high speed-signaling control channel (HS-SCCH) and a first carrier wave where the HS-SCCH locates; the NodeB sends the HS-DSCH control information to the UE through the HS-SCCH according to the preset timing relationship; all the HS-DSCH transmission blocks are sent to the UE through the HS-PDSCH; the UE receives and decodes all the HS-DSCH transmission blocks according to the intercepted HS-DSCH control information and generates and sends acknowledgement/negative acknowledgement (ACK/NACK) information and channel quality indicator (CQI) information of all the transmission blocks to the NodeB through a high speed-shared information channel (HS-SICH); and the NodeB receives the ACK/NACK information and the CQI information of all the transmission blocks. The transmission method and the system of multi-carrier HSDPA, the base station and the user equipment improve UE downlink peak rate and throughput.
Description
Technical field
The present invention relates to wireless communication technology, relate in particular to a kind of multi-carrier HSDPA transmission method, system, base station and subscriber equipment.
Background technology
In the 3GPP agreement in early days, subscriber equipment (User Equipment is hereinafter to be referred as UE) is only supported a carrier wave, is single carrier UE.For improving UE, in the 3GPP agreement, introduced high speed downlink packet access (High Speed Downlink Packet Access is hereinafter to be referred as HSDPA) technology in descending peak rate and throughput.Limited in view of the UE that adopts the HSDPA technology in the raising of descending peak rate and throughput, for further improving UE, in the 3GPP agreement, introduced the multi-carrier HSDPA technology in descending peak rate and throughput.Support that the UE of multi-carrier HSDPA technology is multicarrier UE, this multicarrier UE can support the HSDPA technology simultaneously on a plurality of carrier waves, thereby the peak rate of UE and throughput can be increased considerably along with the increase of carrier number.
For the single carrier UE that supports the HSDPA technology, can also adopt single user's multiple-input and multiple-output (Single-User Multiple-Input Multiple-Output is hereinafter to be referred as SU MIMO) technology further to improve UE in descending peak rate and throughput.At present, in the 3GPP agreement, in the single carrier UE that supports the HSDPA technology, introduced SU MIMO technology.In SU MIMO technology, NodeB confirms that through this UE being carried out channel estimating whether UE is in descending satisfied double-current condition of sending.When UE did not satisfy double-current transmission condition, NodeB sent the HSDPA data through the HS-PDSCH channel of distributing to UE and only sends a HS-DSCH transmission block with the UE:NodeB that does not support SU MIMO technology through uplink/downlink antenna for the mode of UE to give UE.When UE satisfied double-current transmission condition, NodeB was divided into two groups with uplink/downlink antenna, gave UE through two different HS-DSCH transmission blocks of two groups of antenna transmission.Thereby can improve descending peak rate and the throughput of UE.
At present, in the multi-carrier HSDPA technology, do not introduce SU MIMO technology.For the UE that supports the multi-carrier HSDPA technology, UE supports a plurality of carrier waves simultaneously, and the wireless channel of UE on each carrier wave is separate.If UE supports SU MIMO technology on each carrier wave; Because NODEB is separate to the probability that UE sends double fluid on each carrier wave, so UE obtains the probability that double fluid sends and equals this UE obtains double-current transmission on each carrier wave probability sum on any carrier wave.Therefore, if in the multi-carrier HSDPA technology, introduce SU MIMO technology, UE will obtain double fluid with bigger probability and send, and UE can be improved at descending peak rate and throughput further.
Summary of the invention
The present invention provides a kind of multi-carrier HSDPA transmission method, system, base station and subscriber equipment, to improve descending peak rate and the throughput of UE.
The present invention provides a kind of multi-carrier HSDPA transmission method, comprising:
Base station NodeB is in the ability information of current subframe according to each reported by user equipment UE; Distribute to the HS-PDSCH channel of said UE on the UE that confirms to be scheduled and the carrier wave that is scheduled of each said UE that is scheduled; Confirm quantity, each said HS-DSCH transmission block of the HS-DSCH transmission block through the HS-PDSCH Channel Transmission on each said carrier wave that is scheduled and the HS-DSCH control information that is used for each said HS-DSCH transmission block decoding, confirm to be used to carry the HS-SCCH channel of said HS-DSCH control information and the first carrier at said HS-SCCH channel place;
For each said carrier wave that is scheduled of each said UE that is scheduled,
Said NodeB sends to said UE with the HS-DSCH control information through the HS-SCCH channel on the said first carrier according to preset timing relationship;
Said NodeB divides into groups to antenna according to the quantity of said HS-DSCH transmission block, according to said preset timing relationship, a said HS-DSCH transmission block is sent to said UE through the HS-PDSCH channel that sends on one group of antenna;
Said UE intercepts all HS-SCCH channels of distributing to said UE in each subframe; According to the said HS-DSCH control information of carrying on each the HS-SCCH channel that listens to; Receive and decipher each said HS-DSCH transmission block; Generate the ACK/NACK information of each said HS-DSCH transmission block respectively according to decode results; Generate the CQI information of each HS-DSCH transmission block, and the said ACK/NACK information of each HS-DSCH transmission block and said CQI information are sent to said NodeB through the HS-SICH channel with said HS-SCCH pairing on the said first carrier according to said preset timing relationship;
Said NodeB is according to preset timing relationship; Receive the said HS-SICH channel on the said first carrier; Extract the said ACK/NACK information and the said CQI information of each HS-DSCH transmission block, and give the scheduler of said NodeB the said ACK/NACK information of each HS-DSCH transmission block and said CQI information reporting.
The present invention provides a kind of base station, comprising:
The descending scheduling module; Be used for the ability information that reports according to each UE in current subframe; Distribute to the HS-PDSCH channel of said UE on the UE that confirms to be scheduled and the carrier wave that is scheduled of each said UE that is scheduled; Confirm quantity, each said HS-DSCH transmission block of the HS-DSCH transmission block through the HS-PDSCH Channel Transmission on each said carrier wave that is scheduled and the HS-DSCH control information that is used for each said HS-DSCH transmission block decoding, confirm to be used to carry the HS-SCCH channel of said HS-DSCH control information and the first carrier at said HS-SCCH channel place;
Descending Executive Module; Be used for each said carrier wave that is scheduled for said UE; Quantity according to said HS-DSCH transmission block is divided into groups to antenna, according to preset timing relationship, the HS-DSCH control information is sent to said UE through the HS-SCCH channel on the said first carrier; A said HS-DSCH transmission block is sent to said UE through the HS-PDSCH channel that sends on one group of antenna; Receive the said HS-SICH channel on the said first carrier; Extract the said ACK/NACK information and the said CQI information of each HS-DSCH transmission block, and give the scheduler of said base station the said ACK/NACK information of each HS-DSCH transmission block and said CQI information reporting.
The present invention provides a kind of subscriber equipment, comprising:
The descending module of intercepting is used for intercepting all HS-SCCH channels of distributing to said subscriber equipment in each subframe, obtains said HS-DSCH control information to intercept;
The downlink data receiver module is used for receiving and decipher each HS-DSCH transmission block of HS-PDSCH channel according to the said HS-DSCH control information that listens to, and produces decode results;
Feedback module; Be used for generating respectively the ACK/NACK information of each said HS-DSCH transmission block according to said decode results; Generate the CQI information of each said HS-DSCH transmission block, and send to NodeB through the HS-SICH channel on the first carrier with said HS-SCCH channel pairing according to presetting the said ACK/NACK information and the said CQI information of timing relationship with said HS-DSCH transmission block.
The present invention provides a kind of multi-carrier HSDPA transmission system, comprising:
Base station provided by the invention and subscriber equipment provided by the invention.
Can know by technique scheme; Multi-carrier HSDPA transmission method provided by the invention, system, base station and subscriber equipment; Through carrier wave, the first carrier of bear control information and the resource allocation on the carrier wave of confirming that UE is scheduled; Be implemented in and introduce SU MIMO technology in the multi-carrier HSDPA; UE can obtain the double fluid transmission on any carrier wave probability equals this UE obtains the double fluid transmission on each carrier wave probability sum, and UE can be improved at descending peak rate and throughput further.
Description of drawings
A kind of multi-carrier HSDPA transmission method flow chart that Fig. 1 provides for the embodiment of the invention;
The architecture of base station sketch map that Fig. 2 provides for the embodiment of the invention;
The user device architecture sketch map that Fig. 3 provides for the embodiment of the invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention is clearer, will combine the embodiment of the invention below, to the technical scheme in the embodiment of the invention carry out clear, intactly describe.Need to prove that in accompanying drawing or specification, similar or components identical is all used identical Reference numeral.
A kind of multi-carrier HSDPA transmission method flow chart that Fig. 1 provides for the embodiment of the invention, as shown in Figure 1, this multi-carrier HSDPA transmission method can be supported SU MIMO technology, this multi-carrier HSDPA transmission method comprises:
Step D10, base station NodeB are in the ability information of current subframe according to each reported by user equipment UE; Distribute to the HS-PDSCH channel of UE on the UE that confirms to be scheduled and the carrier wave that is scheduled of each UE that is scheduled; Confirm quantity, each HS-DSCH transmission block of the HS-DSCH transmission block through the HS-PDSCH Channel Transmission on each carrier wave that is scheduled and the HS-DSCH control information that is used for each HS-DSCH transmission block decoding, confirm to be used to carry the HS-SCCH channel of HS-DSCH control information and the first carrier at HS-SCCH channel place;
Do not support the multicarrier UE that SU MIMO is technological for compatibility, UE needs reporting ability information, and this ability information is specially the ability of supporting SU MIMO technology.For the UE that supports MU MIMO technology, NodeB just possibly send double fluid, i.e. two HS-DSCH transmission blocks on each carrier wave that this UE supports, for this UE.For the UE that does not support SU MIMO technology, NodeB sends double fluid on any one carrier wave that UE supports, can not for this UE.NodeB also confirms the UE that is scheduled according to other information, and these other information specifically can be the channel quality indication of each UE, the memory state of each UE, the grade of service of each UE etc.
This step is specially NodeB and once dispatches in each subframe; Can carry out by the scheduler of NodeB; Distribute to the HS-PDSCH channel of this UE on the UE that confirms to be scheduled, each carrier wave that is scheduled of confirming the UE that each is scheduled; Confirm on each carrier wave that is scheduled quantity, each HS-DSCH transmission block of the HS-DSCH transmission block through the HS-PDSCH Channel Transmission and the HS-DSCH control information that is used for each HS-DSCH transmission block decoding; Confirm to be used to carry the first carrier at the HS-SCCH channel place of HS-DSCH control information, and with the HS-SICH channel of HS-SCCH channel pairing.
Particularly, NodeB confirms that according to the channel estimation results of UE whether UE is in descending satisfied double-current condition of sending.If satisfy, NodeB just sends two HS-DSCH transmission blocks and gives UE; Otherwise NodeB just sends a HS-DSCH transmission block and gives UE.NodeB can at first confirm to send to the number of the HS-DSCH transmission block of UE, and afterwards, NodeB will confirm each HS-DSCH transmission block and the information that is used for each transmission block decoding, and the decoding information of each transmission block just constitutes the HS-DSCH control information.HS-SCCH and HS-SICH are pursued configuration by RNC.RNC can be transmitted to NodeB and UE with each HS-SCCH and the right configuration information of HS-SICH.Each HS-SCCH and HS-SICH are positioned at identical carrier wave to comprising 1 HS-SCCH channel and 1 HS-SICH channel.
NodeB can dispatch a plurality of carrier waves that are scheduled of UE in same subframe, each carrier wave that is scheduled for UE specifically carries out transfer of data through following steps:
Step D20, NodeB send to UE with the HS-DSCH control information through the HS-SCCH channel on the first carrier according to preset timing relationship;
This HS-DSCH control information specifically can comprise following content:
(1) distributes to the composition of the HS-PDSCH channel of UE: the time slot of HS-PDSCH channel occupancy and channel code;
(2) the HS-PDSCH channel of distributing to UE is used for that single current sends or double fluid sends;
(3) be used under the situation of single current transmission each parameter that the HS-DSCH transmission block that is used for carrying on this single current is deciphered at the HS-PDSCH channel;
(4) be used under the situation of double fluid transmission at HS-PDSCH, be used for each parameter that each stream is gone up the HS-DSCH transmission block decoding of carrying.
Step D30, NodeB divide into groups to antenna according to the quantity of HS-DSCH transmission block, according to preset timing relationship, a HS-DSCH transmission block are sent to UE through the HS-PDSCH channel that sends on one group of antenna;
Particularly, when NodeB confirmed to send two transmission blocks to UE, NodeB was divided into two groups with antenna, and every group of antenna adopts different wave beam forming vectors, respectively the HS-PDSCH channel through two groups of antenna transmission carried out wave beam forming.HS-PDSCH channel through sending on first group of antenna sends to UE with first HS-DSCH transmission block, through the HS-PDSCH channel that sends on second group of antenna second HS-DSCH transmission block is sent to UE.When NodeB confirmed to send a transmission block to UE, NodeB sent this transmission block through the HS-PDSCH channel that sends on all antennas and gives UE.Step D40, UE intercept all HS-SCCH channels of distributing to UE in each subframe; According to the HS-DSCH control information of carrying on each the HS-SCCH channel that listens to; Receive and decipher each HS-DSCH transmission block; Generate the ACK/NACK information of each HS-DSCH transmission block according to decode results; (Channel Quality Indicator hereinafter to be referred as CQI) information, and sends to NodeB with the ACK/NACK information of each HS-DSCH transmission block and CQI information through the HS-SICH channel that matches with HS-SCCH on the first carrier according to preset timing relationship to generate the channel quality indication of each HS-DSCH transmission block;
UE listens to after the HS-SCCH channel; According to the HS-DSCH control information of carrying on the HS-SCCH channel that listens to; Confirm to distribute to the quantity of the HS-PDSCH channel of UE and the HS-DSCH transmission block that sends to UE and the information of each transmission block decoding; And reception NodeB is through each HS-DSCH transmission block of this HS-PDSCH channel transmission; According to the decoding information of each transmission block in the HS-DSCH control information, each HS-DSCH transmission block is deciphered, and generated ACK/NACK information according to decode results.Concrete, when HS-DSCH transmission block of UE correct decoding, generate ACK information; Otherwise, generate nack message.UE also will generate the CQI information of each HS-DSCH transmission block according to the SNR of the HS-PDSCH that carries each HS-DSCH transmission block.UE is through sending to NodeB with the HS-SICH channel of this HS-SCCH channel pairing with the ACK/NACK information and the CQI information of each HS-DSCH transmission block on the first carrier.Under double fluid transmission situation, the channel code of 1 SF=8 of HS-SICH channel occupancy.Under single current transmission situation, the channel code of 1 SF=16 of HS-SICH channel occupancy.
Step D50, NodeB are according to preset timing relationship; Receive the HS-SICH channel that matches with HS-SCCH on the first carrier; Extract the ACK/NACK information and the CQI information of each HS-DSCH transmission block, and give the scheduler of NodeB the ACK/NACK information of each HS-DSCH transmission block and CQI information reporting.
The multi-carrier HSDPA transmission method that present embodiment provides; Each carrier wave that is scheduled through to UE carries out above-mentioned processing; Can be implemented in and introduce SU MIMO technology in the multi-carrier HSDPA; UE can obtain the double fluid transmission on any carrier wave probability equals this UE obtains the double fluid transmission on each carrier wave probability sum, and UE can be improved at descending peak rate and throughput further.
In the present embodiment, NodeB, confirms to distribute to before the HS-PDSCH channel of UE on the carrier wave that is scheduled of UE according to the ability information that UE reports in current subframe, can also comprise:
Step D60, UE report radio network controller (RNC) with ability information, and RNC is transmitted to NodeB with ability information, and ability information is the ability that UE supports single user's multiple-input and multiple-output.
In the present embodiment, NodeB, confirms to distribute to before the HS-PDSCH channel of UE on the carrier wave that is scheduled of UE according to the ability information that each UE reports in current subframe, also comprises:
Step D70, RNC are provided with the carrier wave that is scheduled and the one-to-one relationship between the first carrier in advance; And notify NodeB and UE respectively with the one-to-one relationship between carrier wave that is scheduled and the first carrier; Wherein, carrier wave that is scheduled and first carrier are different carrier;
Correspondingly, NodeB confirms the first carrier at HS-SCCH channel place according to carrier wave that is scheduled and the one-to-one relationship between the first carrier among the D10; UE receives each HS-DSCH transmission block according to the carrier wave and one-to-one relationship between the first carrier and the HS-DSCH control information that are scheduled among the step D40.
In the present embodiment, relation one to one between RNC carrier wave that can pre-configuredly be scheduled and the first carrier.Such as: RNC is provided with in advance: when the carrier wave that is scheduled was sub-district intercarrier A, correspondingly, first carrier was sub-district intercarrier C.That is: RNC notifies NODEB and UE: carrier wave A is corresponding one by one with carrier wave C.In this configuration down, when NODEB confirmed to dispatch sub-district intercarrier A to UE, it was sub-district intercarrier C that NODEB just can confirm to be used for carrier wave A is gone up the first carrier that HS-SCCH that HS-DSCH control information that each HS-DSCH transmission block deciphers is transferred to UE belongs to.In practical application, carrier wave that is scheduled and first carrier also can be same carrier wave, support the single carrier UE of SU MIMO technology with compatibility.Under this kind situation, HS-SCCH format 4, form 5, form 8 and form 9 that the HS-SCCH channel format can adopt the single carrier UE of support SUMIMO to adopt.UE adopts different HS-SCH forms under different state.Each territory that state that above-mentioned four kinds of HS-SCCH forms adopt or condition and every kind of form comprise is following:
When following any condition is TRUE, adopt the HS-SCCH format 4:
(1) is configured in the SF=1 that MIMO pattern and HS-PDSCH double fluid sends as UE;
(2) be configured in the MU-MIMO pattern and UE is not configured in the MIMO pattern as UE;
(3) be configured in the MU-MIMO pattern as UE, and UE to be configured in the SF that MIMO pattern and HS-PDSCH double fluid send be SF=1.
HS-SCCH channel format 4 specifically comprises following each territory:
(1) type code (1 bit);
(2) channel code collection information (6 bits);
(3) gap information (5 bit);
(4) modulator approach information (1 bit);
(5) transport block length (6 bit);
(6) HARQ procedural information (4 bit);
(7) RV version information (2 bit);
(8) HS-SCCH cyclic sequence number (3 bit);
(9) exercise sequence distributing method sign (1 bit);
(10) UE ID (16 bit).
When following two conditions all are TRUE, adopt HS-SCCH channel format 5:
(1) UE is configured in the MIMO pattern;
SF was SF=1 when (2) the HS-PDSCH double fluid sent.
HS-SCCH channel format 5 specifically comprises following each territory:
(1) type code (1 bit);
(2) the modulator approach information (1 bit) of stream 2;
(3) the inclined to one side value information of transport block length (5 bit) of stream 2;
(4) type code 2 (1 bit);
(5) gap information (5 bit);
(6) the transport block length information (6 bit) of stream 1;
(7) the modulator approach information (1 bit) of stream 1;
(8) HARQ procedural information (3 bit);
(9) redundancy version information (2 bit) of stream 1;
(10) redundancy version information (2 bit) of stream 2;
(11) cyclic sequence of HS-SCCH number (3 bit);
(12) UE ID (16 bit).
HS-SCCH channel format 8 is that TRUE adopts in following any condition:
(1) UE is configured in the MIMO pattern, and the SF that the HS-PDSCH double fluid sends is SF=1 or SF=16;
(2) UE is configured in the MU-MIMO pattern, and UE is configured in the MIMO pattern, the double-current SF that sends of HS-PDSCH is SF=1 or SF=16.
HS-SCCH channel format 8 specifically comprises following each territory:
(1) channel code collection information (4 bit);
(2) transport block length (6 bit);
(3) modulator approach information (1 bit);
(4) gap information (5 bit);
(5) RV version information (2 bit);
(6) type code 1 (6 bit);
(7) territory sign 2 (1 bits);
(8) specific information (2 bit);
(9) HARQ procedural information (4 bit);
(10) HS-SCCH cyclic sequence number (3 bit).
When following two conditions all are TRUE, adopt HS-SCCH channel format 9:
(1) UE is configured in the MIMO pattern;
SF was SF=1 or SF=16 when (2) the HS-PDSCH double fluid sent.
HS-SCCH information format 9 specifically comprises following each territory:
(1) channel code collection information (4 bit);
(2) the transport block length information (6 bit) of stream 1;
(3) the modulator approach information (1 bit) of stream 1;
(4) gap information (5 bit);
(5) redundancy version information (2 bit) of stream 1;
(6) the transport block length information (6 bit) of stream 2;
(7) the modulator approach information (1 bit) of stream 2;
(8) redundancy version information (2 bit) of stream 2;
(9) HARQ procedural information (4 bit);
(10) HS-SCCH cyclic sequence number (3 bit);
(11) UE ID (16 bit).
In the present embodiment, carrier wave that is scheduled and the relation between the first carrier can also be carried to UE through the HS-SCCH channel.Particularly, comprise the number of carriers territory in the HS-SCCH channel, the number of carriers territory is used for the number of carriers of the carrier wave that is scheduled is notified to UE; Correspondingly, UE receives each HS-DSCH transmission block according to intercepting number of carriers territory and the HS-DSCH control information on each HS-SCCH among the step D40.Particularly, carrier wave that is scheduled and first carrier can be different carrier, on the HS-SCCH channel, carry number of carriers, are used to indicate the carrier wave at the HS-PDSCH channel place that this HS-SCCH channel dispatched.Particularly; In HS-SCCH format 4, form 5, form 8 and form 9 that the single carrier UE that supports SU MIMO possibly adopt, increase the number of carriers territory respectively; The number of carriers territory specifically can adopt 3 bits to represent, is used to indicate the number of carriers of the carrier wave that is scheduled.Increased the same single carrier case of condition of each HS-SCCH form use in number of carriers territory, as listed above.
In the present embodiment; Particularly; UE can generate descending power control (DownLink Power Control according to the SNR of the HS-SCCH channel that receives; Hereinafter to be referred as DLPC) order, and through the transmitting power on HS-SICH channel control (Transmission Power Control, hereinafter to be referred as: TPC) carry to NodeB in the territory.NodeB extracts the DLPC order of HS-SCCH channel from the TPC territory of HS-SICH channel, according to this order adjustment HS-SCCH channel transmitting power.
NodeB can generate uplink power control according to the SNR of the HS-SICH channel that receives, and (UpLink Power Control hereinafter to be referred as ULPC) order, and carries to UE through the TPC territory on the HS-SCCH.UE extracts the ULPC order of HS-SICH channel from the TPC territory of HS-SCCH channel, according to this order adjustment HS-SICH channel transmitting power.
NodeB can generate uplink synchronous control (UpLink Synchronization Control according to the channel estimating of HS-SICH channel; Hereinafter to be referred as: ULSC) order; And the simultaneous bias through the HS-SCCH channel (Synchronization Shift, hereinafter to be referred as: SS) carry to UE in the territory.UE extracts the ULSC order of HS-SICH channel from the SS territory of HS-SCCH channel, according to the emission lead of this order adjustment HS-SICH channel.
In the present embodiment, preset timing relationship is specially: send the HS-SCCH channel in the n subframe, send the HS-PDSCH channel in the n+1 subframe, send the HS-SICH channel in the n+3 subframe, wherein, n is a natural number; Current subframe is the m subframe, n=m+a, and wherein a is the base station NodeB processing delay, and a is a natural number.NodeB through a subframe, sends the HS-SCCH channel in the n subframe after current m subframe is dispatched, be specially through the HS-SCCH channel and send the HS-DSCH control information.Next, send each HS-DSCH transmission block through the HS-PDSCH channel on every group of antenna, receive the ACK/NACK information and the CQI information of UE through each HS-DSCH transmission block of HS-SICH channel transmission in the n+3 subframe in the n+1 subframe.
The architecture of base station sketch map that Fig. 2 provides for the embodiment of the invention, as shown in Figure 2, this base station comprises descending scheduling module and descending Executive Module.The descending scheduling module is used for the ability information that reports according to each UE in current subframe; Distribute to the HS-PDSCH channel of UE on the UE that confirms to be scheduled and the carrier wave that is scheduled of each UE that is scheduled; Confirm quantity, each HS-DSCH transmission block of the HS-DSCH transmission block through the HS-PDSCH Channel Transmission on each carrier wave that is scheduled and the HS-DSCH control information that is used for each HS-DSCH transmission block decoding, confirm to be used to carry the HS-SCCH channel of HS-DSCH control information and the first carrier at HS-SCCH channel place.Descending Executive Module is used for each carrier wave that is scheduled for UE, according to the quantity of HS-DSCH transmission block antenna is divided into groups, and according to preset timing relationship, the HS-DSCH control information is sent to UE through the HS-SCCH channel on the first carrier; A HS-DSCH transmission block is sent to UE through the HS-PDSCH channel that sends on every group of antenna; Receive the HS-SICH channel on the first carrier, extract ACK/NACK information and the CQI information of each HS-DSCH transmission block, and with the ACK/NACK information of each HS-DSCH transmission block and the CQI information reporting scheduler to the base station.
In the present embodiment; UE intercepts all HS-SCCH channels of distributing to UE in each subframe; According to the HS-DSCH control information of carrying on each the HS-SCCH channel that listens to; Receive and decipher each HS-DSCH transmission block; Generate the ACK/NACK information of each HS-DSCH transmission block according to decode results, and generate the CQI information of each HS-DSCH transmission block, and the ACK/NACK information of each HS-DSCH transmission block and CQI information are sent to this base station through the HS-SICH channel that matches with HS-SCCH on the first carrier according to preset timing relationship according to the signal to noise ratio of the HS-PDSCH channel that carries each HS-DSCH transmission block.
The base station that present embodiment provides; Setting through descending scheduling module 11; Confirm to distribute on the carrier wave that is scheduled of UE number, each HS-DSCH transmission block of the HS-PDSCH channel of UE, the HS-DSCH transmission block through this Channel Transmission and be used for the HS-DSCH control information of each HS-DSCH transmission block decoding and the first carrier at HS-SCCH channel place; And the setting through descending Executive Module 12; Each carrier wave that is scheduled to UE carries out above-mentioned processing; Be implemented in introducing SU MIMO technology in the multi-carrier HSDPA, UE can obtain the double fluid transmission on any carrier wave probability equals this UE obtains the double fluid transmission on each carrier wave probability sum, and UE can be improved at descending peak rate and throughput further.
The user device architecture sketch map that Fig. 3 provides for the embodiment of the invention, as shown in Figure 3, this subscriber equipment comprises descending module 21, downlink data receiver module 22 and the feedback module 23 of intercepting.The descending module 21 of intercepting is used for intercepting all HS-SCCH channels of distributing to subscriber equipment in each subframe, obtains the HS-DSCH control information to intercept.Downlink data receiver module 22 is used for receiving and decipher each HS-DSCH transmission block of HS-PDSCH channel according to the HS-DSCH control information that listens to, and produces decode results.Feedback module 23 is used for generating respectively according to decode results the ACK/NACK information of each HS-DSCH transmission block; Generate the CQI information of each HS-DSCH transmission block, and send to NodeB through the HS-SICH channel on the first carrier with the pairing of HS-SCCH channel according to presetting the ACK/NACK information and the CQI information of timing relationship with each HS-DSCH transmission block.
The subscriber equipment that present embodiment provides; Each HS-SCCH channel is intercepted; And confirm the HS-PDSCH channel according to the HS-DSCH control information that listens to, and receive also decoding through each HS-DSCH transmission block of HS-PDSCH channel, produce feedback information.Be implemented in and introduce SU MIMO technology in the multi-carrier HSDPA; UE can obtain the double fluid transmission on any carrier wave probability equals this UE obtains the double fluid transmission on each carrier wave probability sum, and UE can be improved at descending peak rate and throughput further.
In the present embodiment, this subscriber equipment can also comprise the ability reporting module, and the ability reporting module is used for ability information is reported RNC, and RNC is transmitted to NodeB with ability information, and ability information is the ability that UE supports single user's multiple-input and multiple-output.
The embodiment of the invention provides a kind of multi-carrier HSDPA transmission system, and this multi-carrier HSDPA transmission system comprises the subscriber equipment that base station that any embodiment of the present invention provides and any embodiment of the present invention provide.
Multi-carrier HSDPA transmission method, system, base station and subscriber equipment that the embodiment of the invention provides; Quantity, each HS-DSCH transmission block through confirming HS-PDSCH channel, HS-DSCH transmission block on the carrier wave that UE is scheduled and be used for the HS-DSCH control information of each HS-DSCH transmission block decoding and carry the first carrier of HS-DSCH control information; Be implemented in and introduce the SUMIMO technology in the multi-carrier HSDPA; UE can obtain the double fluid transmission on any carrier wave probability equals this UE obtains the double fluid transmission on each carrier wave probability sum, and UE can be improved at descending peak rate and throughput further.
What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that previous embodiment is put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (9)
1. a multi-carrier HSDPA transmission method is characterized in that, comprising:
Base station NodeB is in the ability information of current subframe according to each reported by user equipment UE; Distribute to the HS-PDSCH channel of said UE on the UE that confirms to be scheduled and the carrier wave that is scheduled of each said UE that is scheduled; Confirm quantity, each said HS-DSCH transmission block of the HS-DSCH transmission block through the HS-PDSCH Channel Transmission on each said carrier wave that is scheduled and the HS-DSCH control information that is used for each said HS-DSCH transmission block decoding, confirm to be used to carry the HS-SCCH channel of said HS-DSCH control information and the first carrier at said HS-SCCH channel place;
For each said carrier wave that is scheduled of each said UE that is scheduled,
Said NodeB sends to said UE with the HS-DSCH control information through the HS-SCCH channel on the said first carrier according to preset timing relationship;
Said NodeB divides into groups to antenna according to the quantity of said HS-DSCH transmission block, according to said preset timing relationship, a said HS-DSCH transmission block is sent to said UE through the HS-PDSCH channel that sends on one group of antenna;
Said UE intercepts all HS-SCCH channels of distributing to said UE in each subframe; According to the said HS-DSCH control information of carrying on each the HS-SCCH channel that listens to; Receive and decipher each said HS-DSCH transmission block; Generate the ACK/NACK information of each said HS-DSCH transmission block respectively according to decode results; Generate the CQI information of each HS-DSCH transmission block, and the said ACK/NACK information of each HS-DSCH transmission block and said CQI information are sent to said NodeB through the HS-SICH channel with said HS-SCCH pairing on the said first carrier according to said preset timing relationship;
Said NodeB is according to preset timing relationship; Receive the said HS-SICH channel on the said first carrier; Extract the said ACK/NACK information and the said CQI information of each HS-DSCH transmission block, and give the scheduler of said NodeB the said ACK/NACK information of each HS-DSCH transmission block and said CQI information reporting.
2. multi-carrier HSDPA transmission method according to claim 1 is characterized in that, said NodeB, confirms to distribute to before the HS-PDSCH channel of said UE on the carrier wave that is scheduled of said UE according to the ability information that UE reports in current subframe, also comprises:
Said UE reports radio network controller (RNC) with said ability information, and said RNC is transmitted to said NodeB with said ability information, and said ability information is the ability that UE supports single user's multiple-input and multiple-output.
3. multi-carrier HSDPA transmission method according to claim 2 is characterized in that, said NodeB, confirms to distribute to before the HS-PDSCH channel of said UE on the carrier wave that is scheduled of said UE according to the ability information that each UE reports in current subframe, also comprises:
Said RNC is provided with the one-to-one relationship between said carrier wave that is scheduled and the said first carrier in advance; And notify said NodeB and said UE respectively with the one-to-one relationship between said carrier wave that is scheduled and the said first carrier; Wherein, said carrier wave that is scheduled and said first carrier are different carrier; Correspondingly,
Said NodeB confirms the first carrier at said HS-SCCH channel place according to the one-to-one relationship between said carrier wave that is scheduled and the said first carrier; Said UE receives each said HS-DSCH transmission block according to one-to-one relationship between said carrier wave that is scheduled and the said first carrier and said HS-DSCH control information.
4. multi-carrier HSDPA transmission method according to claim 1 and 2 is characterized in that:
Comprise the number of carriers territory in the said HS-SCCH channel, said number of carriers territory is used for the number of carriers of the said carrier wave that is scheduled is notified to said UE; Correspondingly,
Said UE receives each said HS-DSCH transmission block according to intercepting number of carriers territory and the said HS-DSCH control information on each said HS-SCCH.
5. multi-carrier HSDPA transmission method according to claim 1 is characterized in that, said preset timing relationship is specially:
Send said HS-SCCH channel in the n subframe, send said HS-PDSCH channel in the n+1 subframe, send said HS-SICH channel in the n+3 subframe, wherein, said n is a natural number;
Said current subframe is the m subframe, n=m+a, and wherein a is the base station NodeB processing delay, and a is a natural number.
6. a base station is characterized in that, comprising:
The descending scheduling module; Be used for the ability information that reports according to each UE in current subframe; Distribute to the HS-PDSCH channel of said UE on the UE that confirms to be scheduled and the carrier wave that is scheduled of each said UE that is scheduled; Confirm quantity, each said HS-DSCH transmission block of the HS-DSCH transmission block through the HS-PDSCH Channel Transmission on each said carrier wave that is scheduled and the HS-DSCH control information that is used for each said HS-DSCH transmission block decoding, confirm to be used to carry the HS-SCCH channel of said HS-DSCH control information and the first carrier at said HS-SCCH channel place;
Descending Executive Module; Be used for each said carrier wave that is scheduled for said UE; Quantity according to said HS-DSCH transmission block is divided into groups to antenna, according to preset timing relationship, the HS-DSCH control information is sent to said UE through the HS-SCCH channel on the said first carrier; A said HS-DSCH transmission block is sent to said UE through the HS-PDSCH channel that sends on one group of antenna; Receive the said HS-SICH channel on the said first carrier; Extract the said ACK/NACK information and the said CQI information of each HS-DSCH transmission block, and give the scheduler of said base station the said ACK/NACK information of each HS-DSCH transmission block and said CQI information reporting.
7. a subscriber equipment is characterized in that, comprising:
The descending module of intercepting is used for intercepting all HS-SCCH channels of distributing to said subscriber equipment in each subframe, obtains said HS-DSCH control information to intercept;
The downlink data receiver module is used for receiving and decipher each HS-DSCH transmission block of HS-PDSCH channel according to the said HS-DSCH control information that listens to, and produces decode results;
Feedback module; Be used for generating respectively the ACK/NACK information of each said HS-DSCH transmission block according to said decode results; Generate the CQI information of each said HS-DSCH transmission block, and send to NodeB through the HS-SICH channel on the first carrier with said HS-SCCH channel pairing according to presetting the said ACK/NACK information and the said CQI information of timing relationship with said HS-DSCH transmission block.
8. subscriber equipment according to claim 7 is characterized in that, also comprises:
The ability reporting module is used for said ability information is reported RNC, and said RNC is transmitted to said NodeB with said ability information, and said ability information is the ability that UE supports single user's multiple-input and multiple-output.
9. a multi-carrier HSDPA transmission system is characterized in that, comprising:
Described base station of claim 6 and claim 7 or 8 described subscriber equipmenies.
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