CN102684821B - 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, particularly relate to a kind of multi-carrier HSDPA transmission method, system, base station and subscriber equipment.
Background technology
In 3GPP agreement in early days, subscriber equipment (User Equipment, hereinafter referred to as UE) only supports a carrier wave, is single carrier UE.For improving UE in descending peak rate and throughput, in 3GPP agreement, introduce high-speed slender body theory (High Speed Downlink Packet Access, hereinafter referred to as HSDPA) technology.In view of adopting, the UE of HSDPA technology is limited in the raising of descending peak rate and throughput, for improving UE further in descending peak rate and throughput, introduces multi-carrier HSDPA technology in 3GPP agreement.Support that the UE of multi-carrier HSDPA technology is multicarrier UE, this multicarrier UE can support HSDPA technology over a number of carriers simultaneously, thus the peak rate of UE and throughput can be increased considerably along with the increase of carrier number.
For the single carrier UE supporting HSDPA technology, single user multiple-input and multiple-output (Single-User Multiple-Input Multiple-Output, hereinafter referred to as SU MIMO) technology can also be adopted to improve UE further in descending peak rate and throughput.At present, in 3GPP agreement, in the single carrier UE supporting HSDPA technology, introduce SU MIMO technology.In SU MIMO technology, NodeB determines by carrying out channel estimating to this UE the condition whether UE sends at descending satisfied double fluid.When UE does not meet double-current transmission condition, NodeB sends HSDPA data to the mode of UE with not supporting that the UE:NodeB of SU MIMO technology only sends a HS-DSCH transmission block to UE by uplink/downlink antenna by the HS-PDSCH channel distributing to UE.When UE meets double-current transmission condition, uplink/downlink antenna is divided into two groups by NodeB, sends two different HS-DSCH transmission blocks to UE by two groups of antennas.Thus downlink peak rates and the throughput of UE can be improved.
At present, in multi-carrier HSDPA technology, SU MIMO technology is not introduced.For the UE supporting multi-carrier HSDPA technology, UE supports multiple carrier wave simultaneously, and UE wireless channel is on each carrier separate.If UE supports SU MIMO technology on each carrier, the probability sending double fluid to UE due to NODEB is on each carrier separate, and therefore UE obtains the probability that double fluid sends and equals the probability sum that this UE obtains double-current transmission on each carrier wave on any one carrier wave.Therefore, if introduce SU MIMO technology in multi-carrier HSDPA technology, UE sends obtaining double fluid with larger probability, and UE can be further improved at descending peak rate and throughput.
Summary of the invention
The invention provides a kind of multi-carrier HSDPA transmission method, system, base station and subscriber equipment, to improve the descending peak rate of UE and throughput.
The invention provides a kind of multi-carrier HSDPA transmission method, comprising:
Base station NodeB is in the ability information of present sub-frame according to each reported by user equipment UE, determine the UE that is scheduled and each described in the carrier wave be scheduled of UE that is scheduled is distributed to the HS-PDSCH channel of described UE, determine the quantity of the HS-DSCH transmission block of the HS-PDSCH transmission on the carrier wave by being scheduled described in each, HS-DSCH transmission block described in each and the HS-DSCH control information for HS-DSCH transmission block decoding described in each, determine carrying the HS-SCCH channel of described HS-DSCH control information and the first carrier at described HS-SCCH channel place,
For the UE be scheduled described in each each described in the carrier wave that is scheduled,
HS-DSCH control information, according to default timing relationship, is sent to described UE by the HS-SCCH channel on described first carrier by described NodeB;
Described NodeB divides into groups to antenna according to the quantity of described HS-DSCH transmission block, according to described default timing relationship, a described HS-DSCH transmission block is sent to described UE by the HS-PDSCH channel that one group of antenna sends;
Described UE intercepts all HS-SCCH channels distributing to described UE in each subframe, according to the described HS-DSCH control information that each HS-SCCH channel listened to carries, receive and decoding HS-DSCH transmission block described in each, the ACK/NACK information of HS-DSCH transmission block described in each is generated respectively according to decode results, generate the CQI information of each HS-DSCH transmission block, and according to described default timing relationship, the described ACK/NACK information of each HS-DSCH transmission block and described CQI information are sent to described NodeB by the HS-SICH channel matched with described HS-SCCH on described first carrier,
Described NodeB is according to the timing relationship preset, receive the described HS-SICH channel on described first carrier, extract the described ACK/NACK information of each HS-DSCH transmission block and described CQI information, and the described ACK/NACK information of each HS-DSCH transmission block and described CQI information are reported the scheduler of described NodeB.
The invention provides a kind of base station, comprising:
Descending scheduling module, for the ability information reported according to each UE at present sub-frame, determine the UE that is scheduled and each described in the carrier wave be scheduled of UE that is scheduled is distributed to the HS-PDSCH channel of described UE, determine the quantity of the HS-DSCH transmission block of the HS-PDSCH transmission on the carrier wave by being scheduled described in each, HS-DSCH transmission block described in each and the HS-DSCH control information for HS-DSCH transmission block decoding described in each, determine carrying the HS-SCCH channel of described HS-DSCH control information and the first carrier at described HS-SCCH channel place,
Descending Executive Module, for for described UE each described in the carrier wave that is scheduled, quantity according to described HS-DSCH transmission block is divided into groups to antenna, according to default timing relationship, HS-DSCH control information is sent to described UE by the HS-SCCH channel on described first carrier; A described HS-DSCH transmission block is sent to described UE by the HS-PDSCH channel that one group of antenna sends; Receive the described HS-SICH channel on described first carrier, extract the described ACK/NACK information of each HS-DSCH transmission block and described CQI information, and the described ACK/NACK information of each HS-DSCH transmission block and described CQI information are reported the scheduler of described base station.
The invention provides a kind of subscriber equipment, comprising:
Descendingly intercept module, for intercepting all HS-SCCH channels distributing to described subscriber equipment in each subframe, obtain described HS-DSCH control information to intercept;
Downlink data receiver module, for according to the described HS-DSCH control information listened to, receives and each HS-DSCH transmission block of decoding HS-PDSCH channel, produces decode results;
Feedback module, for generating the ACK/NACK information of HS-DSCH transmission block described in each respectively according to described decode results, generate the CQI information of HS-DSCH transmission block described in each, and according to default timing relationship by the described ACK/NACK information of described HS-DSCH transmission block and described CQI information by first carrier sends to NodeB with the HS-SICH channel of described HS-SCCH channel pairs.
The invention provides a kind of multi-carrier HSDPA transmission system, comprising:
Base station provided by the invention and subscriber equipment provided by the invention.
As shown from the above technical solution, multi-carrier HSDPA transmission method provided by the invention, system, base station and subscriber equipment, by determining the Resourse Distribute on the first carrier of carrier wave that UE is scheduled, bear control information and carrier wave, realize in multi-carrier HSDPA, introduce SU MIMO technology, the probability that UE can obtain double fluid transmission on any one carrier wave equals the probability sum that this UE obtains double fluid transmission on each carrier wave, and UE can be further improved at descending peak rate and throughput.
Accompanying drawing explanation
A kind of multi-carrier HSDPA transmission method flow chart that Fig. 1 provides for the embodiment of the present invention;
The architecture of base station schematic diagram that Fig. 2 provides for the embodiment of the present invention;
The user device architecture schematic diagram that Fig. 3 provides for the embodiment of the present invention.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.It should be noted that, in accompanying drawing or specification, similar or identical element all uses identical Reference numeral.
A kind of multi-carrier HSDPA transmission method flow chart that Fig. 1 provides for the embodiment of the present invention, as shown in Figure 1, this multi-carrier HSDPA transmission method can support SU MIMO technology, and this multi-carrier HSDPA transmission method comprises:
Step D10, base station NodeB are in the ability information of present sub-frame according to each reported by user equipment UE, the carrier wave be scheduled determining UE and each UE be scheduled be scheduled is distributed to the HS-PDSCH channel of UE, determine the quantity of the HS-DSCH transmission block by the HS-PDSCH transmission on each carrier wave be scheduled, each HS-DSCH transmission block and the HS-DSCH control information for each HS-DSCH transmission block decoding, determine carrying the HS-SCCH channel of HS-DSCH control information and the first carrier at HS-SCCH channel place;
In order to compatibility does not support the multicarrier UE of SU MIMO technology, UE needs reporting ability information, and this ability information is specially the ability supporting SU MIMO technology.For the UE supporting MU MIMO technology, send double fluid, i.e. two HS-DSCH transmission blocks each carrier wave that NodeB just may support at this UE to this UE.Send double fluid any one carrier wave supported at UE for the UE not supporting SU MIMO technology, NodeB all can not to this UE.NodeB also determines the UE be scheduled according to other information, these other information are specifically as follows: the channel quality instruction of each UE, the memory state of each UE, the grade of service etc. of each UE.
This step is specially NodeB and once dispatches in each subframe, can be performed by the scheduler of NodeB, determine the UE be scheduled, the each carrier wave be scheduled determining each UE be scheduled is distributed to the HS-PDSCH channel of this UE, determine the quantity by the HS-DSCH transmission block of HS-PDSCH transmission on each carrier wave be scheduled, each HS-DSCH transmission block and the HS-DSCH control information for each HS-DSCH transmission block decoding, determine the first carrier at the HS-SCCH channel place carrying HS-DSCH control information, and with the HS-SICH channel of HS-SCCH channel pairs.
Particularly, NodeB determines according to the channel estimation results of UE the condition whether UE sends at descending satisfied double fluid.If met, NodeB just sends two HS-DSCH transmission blocks to UE; Otherwise NodeB just sends a HS-DSCH transmission block to UE.First NodeB can determine the number of the HS-DSCH transmission block sending to UE, and afterwards, NodeB will determine each HS-DSCH transmission block and be used for the information of each transmission block decoding, and the decoding information of each transmission block just forms HS-DSCH control information.HS-SCCH and HS-SICH by RNC by configuration.Configuration information right for each HS-SCCH and HS-SICH can be transmitted to NodeB and UE by RNC.Each HS-SCCH and HS-SICH, to comprising 1 HS-SCCH channel and 1 HS-SICH channel, is positioned at identical carrier wave.
NodeB can dispatch multiple carrier waves be scheduled of UE in same subframe, for each carrier wave be scheduled of UE, carries out transfer of data especially by following steps:
HS-DSCH control information, according to default timing relationship, is sent to UE by the HS-SCCH channel on first carrier by step D20, NodeB;
This HS-DSCH control information specifically can comprise following content:
(1) composition of the HS-PDSCH channel of UE is distributed to: the time slot of HS-PDSCH channel occupancy and channel code;
(2) the HS-PDSCH channel distributing to UE sends for single current or double fluid transmission;
(3) when HS-PDSCH channel is used for single current transmission, the parameters of the HS-DSCH transmission block decoding carried on this single current;
(4) when HS-PDSCH is used for double fluid transmission, the parameters of the HS-DSCH transmission block decoding carried on each stream.
Step D30, NodeB divide into groups to antenna according to the quantity of HS-DSCH transmission block, according to default timing relationship, a HS-DSCH transmission block are sent to UE by the HS-PDSCH channel that one group of antenna sends;
Particularly, when NodeB determines transmission two transmission blocks to UE, antenna is divided into two groups by NodeB, often organizes antenna and adopts different beamforming vector, carry out wave beam forming respectively to the HS-PDSCH channel sent by two groups of antennas.By the HS-PDSCH channel that first group of antenna sends, first HS-DSCH transmission block is sent to UE, by the HS-PDSCH channel that second group of antenna sends, second HS-DSCH transmission block is sent to UE.When NodeB determines transmission transmission block to UE, NodeB sends this transmission block to UE by the HS-PDSCH channel that all antennas send.Step D40, UE intercepts all HS-SCCH channels distributing to UE in each subframe, according to the HS-DSCH control information that each HS-SCCH channel listened to carries, receive and each HS-DSCH transmission block of decoding, the ACK/NACK information of each HS-DSCH transmission block is generated according to decode results, generate channel quality instruction (the Channel Quality Indicator of each HS-DSCH transmission block, hereinafter referred to as: CQI) information, and according to default timing relationship, the ACK/NACK information of each HS-DSCH transmission block and CQI information are sent to NodeB by the HS-SICH channel matched with HS-SCCH on first carrier,
After UE listens to HS-SCCH channel, according to the HS-DSCH control information that the HS-SCCH channel listened to carries, determine distribute to the HS-PDSCH channel of UE and send to the quantity of HS-DSCH transmission block and the information of each transmission block decoding of UE, and receive each HS-DSCH transmission block that NodeB sent by this HS-PDSCH channel, according to the decoding information of each transmission block in HS-DSCH control information, decoding is carried out to each HS-DSCH transmission block, and generates ACK/NACK information according to decode results.Concrete, when a UE correct decoding HS-DSCH transmission block, generate ACK information; Otherwise, generate nack message.The SNR of the HS-PDSCH according to each HS-DSCH transmission block of carrying is also generated the CQI information of each HS-DSCH transmission block by UE.UE is by the ACK/NACK information of each HS-DSCH transmission block and CQI information are sent to NodeB with the HS-SICH channel of this HS-SCCH channel pairs by first carrier.In double fluid transmission situation, the channel code of HS-SICH channel occupancy 1 SF=8.In single current transmission situation, the channel code of HS-SICH channel occupancy 1 SF=16.
Step D50, NodeB are according to the timing relationship preset, receive the HS-SICH channel that first carrier matches with HS-SCCH, extract ACK/NACK information and the CQI information of each HS-DSCH transmission block, and the ACK/NACK information of each HS-DSCH transmission block and CQI information are reported the scheduler of NodeB.
The multi-carrier HSDPA transmission method that the present embodiment provides, by carrying out above-mentioned process to each carrier wave be scheduled of UE, can be implemented in multi-carrier HSDPA and introduce SU MIMO technology, the probability that UE can obtain double fluid transmission on any one carrier wave equals the probability sum that this UE obtains double fluid transmission on each carrier wave, and UE can be further improved at descending peak rate and throughput.
In the present embodiment, the ability information that NodeB reports according to UE at present sub-frame, before the carrier wave be scheduled determining UE distributes to the HS-PDSCH channel of UE, can also comprise:
Ability information is reported radio network controller (RNC) by step D60, UE, and ability information is transmitted to NodeB by RNC, and ability information is the ability that UE supports single user multiple-input and multiple-output.
In the present embodiment, the ability information that NodeB reports according to each UE at present sub-frame, before the carrier wave be scheduled determining UE distributes to the HS-PDSCH channel of UE, also comprises:
Step D70, RNC pre-set the one-to-one relationship between carrier wave and first carrier be scheduled, and the one-to-one relationship between the carrier wave be scheduled and first carrier is notified NodeB and UE respectively, wherein, the carrier wave be scheduled and first carrier are different carrier;
Correspondingly, in D10, NodeB is according to the one-to-one relationship between the carrier wave be scheduled and first carrier, determines the first carrier at HS-SCCH channel place; In step D40, UE is according to the one-to-one relationship between the carrier wave be scheduled and first carrier and HS-DSCH control information, receives each HS-DSCH transmission block.
In the present embodiment, relation one to one between the RNC carrier wave that can pre-configuredly be scheduled and first carrier.Such as: RNC pre-sets: when the carrier wave be scheduled is community intercarrier A, correspondingly, first carrier is community intercarrier C.That is: RNC notice NODEB and UE: carrier wave A and carrier wave C one_to_one corresponding.Under in such a configuration, when NODEB determines community intercarrier A to dispatch to UE, the first carrier that NODEB just can determine the HS-DSCH control information of each HS-DSCH transmission block decoding on carrier wave A to be transferred to the HS-SCCH place of UE is community intercarrier C.In actual applications, the carrier wave be scheduled and first carrier can be also same carrier wave, support the single carrier UE of SU MIMO technology with compatibility.In that case, HS-SCCH channel format can adopt HS-SCCH format 4, form 5, form 8 and the form 9 of supporting that the single carrier UE of SUMIMO may adopt.UE adopts different HS-SCH forms under different states.Each territory that the state that above-mentioned four kinds of HS-SCCH forms adopt or condition and often kind of form comprise is as follows:
When any one condition following is TRUE, adopt HS-SCCH format 4:
(1) when UE is configured in MIMO mode and HS-PDSCH double fluid send SF=1;
(2) when UE is configured in MU-MIMO pattern and UE is not configured in MIMO mode;
(3) when UE is configured in MU-MIMO pattern, and UE be configured in MIMO mode and HS-PDSCH double fluid send SF be SF=1.
HS-SCCH channel format 4 specifically comprises each territory following:
(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 procedure information (4 bit);
(7) RV version information (2 bit);
(8) HS-SCCH cyclic sequence number (3 bit);
(9) exercise sequence distributing method mark (1 bit);
(10) UE ID (16 bit).
When following two conditions are all TRUE, adopt HS-SCCH channel format 5:
(1) UE is configured in MIMO mode;
(2) when HS-PDSCH double fluid sends, SF is SF=1.
HS-SCCH channel format 5 specifically comprises each territory following:
(1) type code (1 bit);
(2) the modulator approach information (1 bit) of 2 is flowed;
(3) the inclined value information of transport block length (5 bit) of 2 is flowed;
(4) type code 2 (1 bit);
(5) gap information (5 bit);
(6) the transport block length information (6 bit) of 1 is flowed;
(7) the modulator approach information (1 bit) of 1 is flowed;
(8) HARQ procedure information (3 bit);
(9) redundancy version information (2 bit) of 1 is flowed;
(10) redundancy version information (2 bit) of 2 is flowed;
(11) cyclic sequence number (3 bit) of HS-SCCH;
(12) UE ID (16 bit).
HS-SCCH channel format 8 is that TRUE adopts in any one condition following:
(1) UE is configured in MIMO mode, and the SF that HS-PDSCH double fluid sends is SF=1 or SF=16;
(2) UE is configured in MU-MIMO pattern, and the SF that UE is configured in MIMO mode, HS-PDSCH double fluid sends is SF=1 or SF=16.
HS-SCCH channel format 8 specifically comprises each territory following:
(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 mark 2 (1 bit);
(8) specific information (2 bit);
(9) HARQ procedure information (4 bit);
(10) HS-SCCH cyclic sequence number (3 bit).
When following two conditions are all TRUE, adopt HS-SCCH channel format 9:
(1) UE is configured in MIMO mode;
(2) when HS-PDSCH double fluid sends, SF is SF=1 or SF=16.
HS-SCCH information format 9 specifically comprises each territory following:
(1) channel code collection information (4 bit);
(2) the transport block length information (6 bit) of 1 is flowed;
(3) the modulator approach information (1 bit) of 1 is flowed;
(4) gap information (5 bit);
(5) redundancy version information (2 bit) of 1 is flowed;
(6) the transport block length information (6 bit) of 2 is flowed;
(7) the modulator approach information (1 bit) of 2 is flowed;
(8) redundancy version information (2 bit) of 2 is flowed;
(9) HARQ procedure information (4 bit);
(10) HS-SCCH cyclic sequence number (3 bit);
(11) UE ID (16 bit).
In the present embodiment, the relation between the carrier wave be scheduled and first carrier can also be carried to UE by HS-SCCH channel.Particularly, HS-SCCH channel comprises carrier number code domain, and carrier number code domain is used for the number of carriers of the carrier wave be scheduled to inform to UE; Correspondingly, in step D40, UE is according to the carrier number code domain intercepted on each HS-SCCH and HS-DSCH control information, receives each HS-DSCH transmission block.Particularly, the carrier wave be scheduled and first carrier can be different carrier, carry number of carriers on the hs-scch channel, are used to indicate the carrier wave at the HS-PDSCH channel place that this HS-SCCH channel is dispatched.Particularly, supporting to increase carrier number code domain respectively in HS-SCCH format 4, form 5, form 8 and form 9 that the single carrier UE of SU MIMO may adopt, carrier number code domain specifically can adopt 3 bits to represent, is used to indicate the number of carriers of the carrier wave be scheduled.The same single carrier case of condition that each HS-SCCH form adding carrier number code domain uses, as listed above.
In the present embodiment, particularly, UE can generate downlink power control (DownLink Power Control according to the SNR of the HS-SCCH channel received, hereinafter referred to as: DLPC) order, and by the transmitting power on HS-SICH channel control (Transmission Power Control, hereinafter referred to as: TPC) territory is carried to NodeB.NodeB extracts the DLPC order of HS-SCCH channel from the TPC territory of HS-SICH channel, according to the transmitting power of this order adjustment HS-SCCH channel.
NodeB can according to the SNR of the HS-SICH channel received generate uplink power control (UpLink Power Control, hereinafter referred to as: ULPC) order, and be carried to UE by the TPC territory on HS-SCCH.UE extracts the ULPC order of HS-SICH channel from the TPC territory of HS-SCCH channel, according to the transmitting power of this order adjustment HS-SICH channel.
NodeB can generate uplink synchronous according to the channel estimating of HS-SICH channel and control (UpLink Synchronization Control, hereinafter referred to as: ULSC) order, and by the simultaneous bias of HS-SCCH channel (Synchronization Shift, hereinafter referred to as: SS) territory is carried to UE.UE extracts the ULSC order of HS-SICH channel from the SS territory of HS-SCCH channel, according to the transmitting lead of this order adjustment HS-SICH channel.
In the present embodiment, default timing relationship is specially: send HS-SCCH channel in the n-th subframe, sends HS-PDSCH channel in n+1 subframe, and send HS-SICH channel in n+3 subframe, wherein, n is natural number; Present sub-frame is m subframe, n=m+a, and wherein a is base station NodeB processing delay, and a is natural number.NodeB, after current m subframe is dispatched, through a subframe, sends HS-SCCH channel in the n-th subframe, sends HS-DSCH control information specifically by HS-SCCH channel.Next, send each HS-DSCH transmission block in the (n+1)th subframe by the every HS-PDSCH channel organized on antenna, receive ACK/NACK information and the CQI information of each HS-DSCH transmission block that UE is sent by HS-SICH channel in n+3 subframe.
The architecture of base station schematic diagram that Fig. 2 provides for the embodiment of the present invention, as shown in Figure 2, this base station comprises descending scheduling module and descending Executive Module.Descending scheduling module is used for the ability information reported according to each UE at present sub-frame, the carrier wave be scheduled determining UE and each UE be scheduled be scheduled is distributed to the HS-PDSCH channel of UE, determine the quantity of the HS-DSCH transmission block by the HS-PDSCH transmission on each carrier wave be scheduled, each HS-DSCH transmission block and the HS-DSCH control information for each HS-DSCH transmission block decoding, determine carrying 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 be scheduled for UE, and the quantity according to HS-DSCH transmission block is divided into groups to antenna, according to default timing relationship, HS-DSCH control information is sent to UE by the HS-SCCH channel on first carrier; A HS-DSCH transmission block is sent to UE by often organizing the HS-PDSCH channel that antenna sends; Receive the HS-SICH channel on first carrier, extract ACK/NACK information and the CQI information of each HS-DSCH transmission block, and the ACK/NACK information of each HS-DSCH transmission block and CQI information are reported the scheduler of base station.
In the present embodiment, UE intercepts all HS-SCCH channels distributing to UE in each subframe, according to the HS-DSCH control information that each HS-SCCH channel listened to carries, receive and each HS-DSCH transmission block of decoding, the ACK/NACK information of each HS-DSCH transmission block is generated according to decode results, and the CQI information of each HS-DSCH transmission block is generated according to the signal to noise ratio of the HS-PDSCH channel of each HS-DSCH transmission block of carrying, and according to default timing relationship, the ACK/NACK information of each HS-DSCH transmission block and CQI information are sent to this base station by the HS-SICH channel matched with HS-SCCH on first carrier.
The base station that the present embodiment provides, by the setting of descending scheduling module 11, the carrier wave be scheduled determining UE is distributed to the HS-PDSCH channel of UE, by the number of the HS-DSCH transmission block of this transmission, each HS-DSCH transmission block and for the HS-DSCH control information of each HS-DSCH transmission block decoding and the first carrier at HS-SCCH channel place, and by the setting of descending Executive Module 12, above-mentioned process is carried out to each carrier wave be scheduled of UE, realize in multi-carrier HSDPA, introduce SU MIMO technology, the probability that UE can obtain double fluid transmission on any one carrier wave equals the probability sum that this UE obtains double fluid transmission on each carrier wave, UE can be further improved at descending peak rate and throughput.
The user device architecture schematic diagram that Fig. 3 provides for the embodiment of the present invention, as shown in Figure 3, this subscriber equipment comprises descendingly intercepts module 21, downlink data receiver module 22 and feedback module 23.Descending module 21 of intercepting, for intercepting all HS-SCCH channels distributing to subscriber equipment in each subframe, obtains HS-DSCH control information to intercept.Downlink data receiver module 22, for according to the HS-DSCH control information listened to, receives and each HS-DSCH transmission block of decoding HS-PDSCH channel, produces decode results.Feedback module 23 is for generating the ACK/NACK information of each HS-DSCH transmission block respectively according to decode results, generate the CQI information of each HS-DSCH transmission block, and according to default timing relationship by the ACK/NACK information of each HS-DSCH transmission block and CQI information by first carrier sends to NodeB with the HS-SICH channel of HS-SCCH channel pairs.
The subscriber equipment that the present embodiment provides, each HS-SCCH channel is intercepted, and determine HS-PDSCH channel according to the HS-DSCH control information listened to, receive also decoding by each HS-DSCH transmission block of HS-PDSCH channel, produce feedback information.Realize in multi-carrier HSDPA, introduce SU MIMO technology, the probability that UE can obtain double fluid transmission on any one carrier wave equals the probability sum that this UE obtains double fluid transmission on each carrier wave, and UE can be further improved at descending peak rate and throughput.
In the present embodiment, this subscriber equipment can also comprise capability reporting module, and capability reporting module is used for ability information to report RNC, and ability information is transmitted to NodeB by RNC, and ability information is the ability that UE supports single user multiple-input and multiple-output.
The embodiment of the present invention provides a kind of multi-carrier HSDPA transmission system, and this multi-carrier HSDPA transmission system comprises base station that any embodiment of the present invention provides and the subscriber equipment that any embodiment of the present invention provides.
The multi-carrier HSDPA transmission method that the embodiment of the present invention provides, system, base station and subscriber equipment, by determining HS-PDSCH channel on the carrier wave that UE is scheduled, the quantity of HS-DSCH transmission block, each HS-DSCH transmission block and for the HS-DSCH control information of each HS-DSCH transmission block decoding and the first carrier of carrying HS-DSCH control information, realize in multi-carrier HSDPA, introduce SUMIMO technology, the probability that UE can obtain double fluid transmission on any one carrier wave equals the probability sum that this UE obtains double fluid transmission on each carrier wave, UE can be further improved at descending peak rate and throughput.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in previous embodiment, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (8)
1. a multi-carrier HSDPA transmission method, is characterized in that, comprising:
Base station NodeB is in the ability information of present sub-frame according to each reported by user equipment UE, determine the UE that is scheduled and each described in the carrier wave be scheduled of UE that is scheduled is distributed to the HS-PDSCH channel of described UE, determine the quantity of the HS-DSCH transmission block of the HS-PDSCH transmission on the carrier wave by being scheduled described in each, HS-DSCH transmission block described in each and the HS-DSCH control information for HS-DSCH transmission block decoding described in each, determine carrying the HS-SCCH channel of described HS-DSCH control information and the first carrier at described HS-SCCH channel place, wherein, described ability information is the ability that described UE supports single user multiple-input and multiple-output,
For the UE be scheduled described in each each described in the carrier wave that is scheduled,
HS-DSCH control information, according to default timing relationship, is sent to described UE by the HS-SCCH channel on described first carrier by described NodeB;
Described NodeB divides into groups to antenna according to the quantity of described HS-DSCH transmission block, according to described default timing relationship, a described HS-DSCH transmission block is sent to described UE by the HS-PDSCH channel that one group of antenna sends;
Described UE intercepts all HS-SCCH channels distributing to described UE in each subframe, according to the described HS-DSCH control information that each HS-SCCH channel listened to carries, receive and decoding HS-DSCH transmission block described in each, the ACK/NACK information of HS-DSCH transmission block described in each is generated respectively according to decode results, generate the CQI information of each HS-DSCH transmission block, and according to described default timing relationship, the described ACK/NACK information of each HS-DSCH transmission block and described CQI information are sent to described NodeB by the HS-SICH channel matched with described HS-SCCH on described first carrier,
Described NodeB is according to the timing relationship preset, receive the described HS-SICH channel on described first carrier, extract the described ACK/NACK information of each HS-DSCH transmission block and described CQI information, and the described ACK/NACK information of each HS-DSCH transmission block and described CQI information are reported the scheduler of described NodeB.
2. multi-carrier HSDPA transmission method according to claim 1, is characterized in that, the ability information that described NodeB reports according to UE at present sub-frame, before the carrier wave be scheduled determining described UE distributes to the HS-PDSCH channel of described UE, also comprises:
Described ability information is reported radio network controller (RNC) by described UE, and described ability information is transmitted to described NodeB by described RNC.
3. multi-carrier HSDPA transmission method according to claim 2, is characterized in that, the ability information that described NodeB reports according to each UE at present sub-frame, before the carrier wave be scheduled determining described UE distributes to the HS-PDSCH channel of described UE, also comprises:
One-to-one relationship between the carrier wave be scheduled described in described RNC pre-sets and described first carrier, and the one-to-one relationship between the described carrier wave that is scheduled and described first carrier is notified described NodeB and described UE respectively, wherein, the carrier wave be scheduled described in and described first carrier are different carrier; Correspondingly,
Described NodeB according to described in one-to-one relationship between the carrier wave that is scheduled and described first carrier, determine the first carrier at described HS-SCCH channel place; Described UE according to described in one-to-one relationship between the carrier wave that is scheduled and described first carrier and described HS-DSCH control information, receive HS-DSCH transmission block described in each.
4. multi-carrier HSDPA transmission method according to claim 1 and 2, is characterized in that:
Described HS-SCCH channel comprises carrier number code domain, and described carrier number code domain is used for the number of carriers of the described carrier wave be scheduled to inform to described UE; Correspondingly,
Described UE, according to the carrier number code domain intercepted on each described HS-SCCH and described HS-DSCH control information, receives HS-DSCH transmission block described in each.
5. multi-carrier HSDPA transmission method according to claim 1, is characterized in that, described default timing relationship is specially:
Send described HS-SCCH channel in the n-th subframe, send described HS-PDSCH channel in n+1 subframe, send described HS-SICH channel in n+3 subframe, wherein, described n is natural number;
Described present sub-frame is m subframe, n=m+a, and wherein a is base station NodeB processing delay, and a is natural number.
6. a base station, is characterized in that, comprising:
Descending scheduling module, for the ability information reported according to each UE at present sub-frame, determine the UE that is scheduled and each described in the carrier wave be scheduled of UE that is scheduled is distributed to the HS-PDSCH channel of described UE, determine the quantity of the HS-DSCH transmission block of the HS-PDSCH transmission on the carrier wave by being scheduled described in each, HS-DSCH transmission block described in each and the HS-DSCH control information for HS-DSCH transmission block decoding described in each, determine carrying the HS-SCCH channel of described HS-DSCH control information and the first carrier at described HS-SCCH channel place, wherein, described ability information is the ability that described UE supports single user multiple-input and multiple-output,
Descending Executive Module, for for described UE each described in the carrier wave that is scheduled, quantity according to described HS-DSCH transmission block is divided into groups to antenna, according to default timing relationship, HS-DSCH control information is sent to described UE by the HS-SCCH channel on described first carrier; A described HS-DSCH transmission block is sent to described UE by the HS-PDSCH channel that one group of antenna sends; Receive the described HS-SICH channel on described first carrier, extract ACK/NACK information and the CQI information of each HS-DSCH transmission block, and the described ACK/NACK information of each HS-DSCH transmission block and described CQI information are reported the scheduler of described base station.
7. a subscriber equipment, is characterized in that, comprising:
Descendingly intercept module, for intercepting all HS-SCCH channels distributing to described subscriber equipment in each subframe, obtain HS-DSCH control information to intercept;
Downlink data receiver module, for according to the described HS-DSCH control information listened to, receives and each HS-DSCH transmission block of decoding HS-PDSCH channel, produces decode results; Wherein, receiving a HS-DSCH transmission block by the HS-PDSCH channel that one group of antenna sends, divides into groups to antenna according to the quantity of HS-DSCH transmission block in base station;
Feedback module, for generating the ACK/NACK information of HS-DSCH transmission block described in each respectively according to described decode results, generate the CQI information of HS-DSCH transmission block described in each, and according to default timing relationship by the described ACK/NACK information of described HS-DSCH transmission block and described CQI information by first carrier sends to NodeB with the HS-SICH channel of described HS-SCCH channel pairs;
Capability reporting module, for ability information is reported RNC, described ability information is transmitted to described NodeB by described RNC, and described ability information is the ability that UE supports single user multiple-input and multiple-output.
8. a multi-carrier HSDPA transmission system, is characterized in that, comprising:
Base station according to claim 6 and subscriber equipment according to claim 7.
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| EP3060025A4 (en) * | 2013-11-13 | 2016-10-19 | Huawei Tech Co Ltd | Method for acquiring uplink grant information, ue and base station |
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