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CN100428678C - Method for realizing multiple packet broadcasting service - Google Patents

Method for realizing multiple packet broadcasting service Download PDF

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Publication number
CN100428678C
CN100428678C CNB2006100837399A CN200610083739A CN100428678C CN 100428678 C CN100428678 C CN 100428678C CN B2006100837399 A CNB2006100837399 A CN B2006100837399A CN 200610083739 A CN200610083739 A CN 200610083739A CN 100428678 C CN100428678 C CN 100428678C
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data
channel
information
nodeb
check digit
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CN1983943A (en
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尹东辉
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Abstract

This invention relates to the new Multicast Service method which includes that the NodeB sends Multicast Service data to the user facilities by the High-Speed Downlink Packet Access Technology; the user facilities accepts the data and reflects to the NodeB; and according to the reflection, the NodeB sends out another service data. By this way, it is easy to achieve flexi able control of the transmitter power and the format of the Multicast Service data, to ensure the quality of the service and to utilize the system resource efficiently.

Description

The implementation method of multicast service
Technical field
The present invention relates to the multicast service technical field, be meant a kind of implementation method of multicast service especially.
Background technology
In some application scenarios of 3GPP system, need a plurality of users of NodeB in cell coverage area to send identical data message, i.e. multicast service.In existing 3GPP system, adopt the mode of DPCH or down public common to realize usually.
Below this dual mode is carried out brief description respectively:
At first, adopt DPCH to realize that the mode of multicast service specifically is meant: NodeB distributes the DPCH of using separately for it for each user who receives specific channel service, transmits the identical business datum of this channel on the DPCH of being distributed.That is to say,, also need to transmit data by a plurality of dedicated channels even a plurality of user shares the business information of a channel.This mode realizes simply relatively being applicable to the situation that the multicast service number of users is not too big, when the multicast service number of users is big, can consume a large amount of sign indicating number resource and power resource.
Secondly, adopt down public common to realize that the mode of multicast service specifically comprises: adopt fixing transmitting power to send business datum in the NodeB side, all users receive identical multicast service data on identical down public common.This mode is a yard resource utilization height than the advantage of aforementioned manner, and under normal conditions, in order to guarantee that most users obtain service, the poorest situation of user's communication environments is provided with in the transmitting power planning Network Based, so transmitting power is provided with higherly usually.So, this mode just is applicable to relatively that the big and certain customers of number of users are distributed in the situation in the relatively poor environment of channel condition.And little and most of user distributions use this mode can cause the huge waste of transmitting power undoubtedly in the better situation in zone of channel condition for number of users.
This shows, when realizing multicast service, all have the problem of resource irrational utilization by above dual mode.
Summary of the invention
In view of this, main purpose of the present invention is to provide the implementation method of two kinds of multicast services, when realizing guaranteeing quality of service, solves the problem of resource irrational utilization in the existing multicast service implementation method.
For achieving the above object, the invention provides a kind of implementation method of multicast service, this method comprises the steps:
A, in node NodeB side, NodeB sends the multicast service data by the high-speed downlink packet access HSDPA mode to user equipment (UE), and controls the transmission of next section multicast service data according to the feedback information that is received from UE; Wherein, NodeB sends the channel information of described multicast service data to UE by high-speed shared control channel HS-SCCH, by HS-SCCH according to the positional information of the format information of each channel data to the format information that UE sends each channel data, send each channel data by high speed downlink shared channel HS-DSCH to UE;
B, in the UE side, UE receives described multicast service data, and sends feedback information to NodeB.
In said method, described channel information comprises system bits data and check digit data the positional information on high speed descending sharing channel (HS-DSCH) of the format information of number of channels, each channel designation, each channel data at the positional information on the HS-SCCH and each channel data at least;
Described format information comprises the format information of the system bits data and the check digit data of each channel data at least;
The system bits data and the check digit data that comprise each channel service data in the described channel data.
In said method, described step a further comprises: NodeB judges whether to exist the channel data of needs re-transmission according to the feedback information that receives, if, then send the positional information of format information on HS-SCCH of the check digit data of this re-transmission channel data to UE by HS-SCCH, and send the format information of the check digit data of described re-transmission channel data and the check digit data that send this re-transmission channel data by HS-DSCH to UE according to described positional information to UE by HS-SCCH; Otherwise, carry out the described step of controlling the transmission of next section multicast service data according to feedback information.
In the step a of said method, described NodeB sends the check digit data of described re-transmission channel data to UE by HS-SCCH the step of format information comprises: all retransmit the format information of the check digit data of channel datas to NodeB in UE sends a carrier frequency by a HS-SCCH.
In said method, described system bits data and check digit data comprise at least in the positional information on the HS-DSCH: the code word and the Transmission Time Interval TTI positional information of system bits data correspondence on HS-DSCH; And the check digit data on HS-DSCH corresponding code word and TTI thereof with respect to the offset information of the TTI of system bits data.
In said method, the format information of described channel data comprises at least: the modulation system of channel data, coded system and rate matching information.
In the step a of said method, described NodeB comprises to the step that UE sends each channel data by HS-DSCH: NodeB sends the system bits data and the check digit data of described each channel data to UE according to fixing TTI position.
In said method, described step b comprises:
B11, UE receiving channels information, and obtain the format information of the receiving channels data of wanting from HS-SCCH according to the positional information of the format information of each channel data that comprises in this channel information;
B12, UE obtain the system bits data of this channel data and it are carried out the demodulation sign indicating number from HS-DSCH according to the format information of obtaining channel data, if success then receives one piece of data down according to step b11; Otherwise, execution in step b13;
B13, UE obtain the check digit data of this channel data according to the format information of obtaining channel data from HS-DSCH, and itself and described system bits data are merged the demodulation sign indicating number, if success then receives one piece of data down according to step b11; Otherwise, execution in step b14;
B14, UE send feedback information by High-Speed Dedicated Physical Control Channel (HS-DPCCH) to NodeB, finish this step b.
In said method, described feedback information comprises non-affirmation nack message and/or channel quality indicator (CQI) information;
Among the step a, the transmission that described NodeB controls next section multicast service data according to the feedback information that receives comprises: form and transmitting power that nack message that the NodeB basis receives and/or CQI information Control send next section multicast service data.
In the step b of said method, described UE sends feedback information to NodeB and is: each UE periodically sends the feedback information that comprises CQI to NodeB.
The present invention also provides a kind of implementation method of multicast service, and this method comprises the steps:
A, in node NodeB side, NodeB sends the multicast service data by the high-speed downlink packet access HSDPA mode to user equipment (UE), and controls the transmission of next section multicast service data according to the feedback information that is received from UE; Wherein, NodeB sends the channel information of described multicast service data to UE by public broadcast channel, by HS-SCCH according to the positional information of the format information of each channel data to the format information that UE sends each channel data, send each channel data by HS-DSCH to UE;
B, in the UE side, UE receives described multicast service data, and sends feedback information to NodeB.
In said method, described channel information comprises system bits data and check digit data the positional information on HS-DSCH of the format information of number of channels, each channel designation, each channel data at the positional information on the HS-SCCH and each channel data at least;
Described format information comprises the format information of the system bits data and the check digit data of each channel data at least;
The system bits data and the check digit data that comprise each channel service data in the described channel data.
In said method, described steps A further comprises: NodeB judges whether to exist the channel data of needs re-transmission according to the feedback information that receives, if, then send the positional information of format information on HS-SCCH of the check digit data of this re-transmission channel data to UE by broadcast channel, and send the format information of the check digit data of described re-transmission channel data and the check digit data that send this re-transmission channel data by HS-DSCH to UE according to described positional information to UE by HS-SCCH; Otherwise, carry out the described step of controlling the transmission of next section multicast service data according to feedback information.
In the steps A of said method, described NodeB sends the check digit data of described re-transmission channel data to UE by HS-SCCH the step of format information comprises: all retransmit the format information of the check digit data of channel datas to NodeB in UE sends a carrier frequency by a HS-SCCH.
In said method, described system bits data and check digit data comprise at least in the positional information on the HS-DSCH: the code word and the Transmission Time Interval TTI positional information of system bits data correspondence on HS-DSCH; And the check digit data on HS-DSCH corresponding code word and TTI thereof with respect to the offset information of the TTI of system bits data.
In said method, the format information of described channel data comprises at least: the modulation system of channel data, coded system and rate matching information.
In the steps A of said method, described NodeB comprises to the step that UE sends each channel data by HS-DSCH: NodeB sends the system bits data and the check digit data of described each channel data to UE according to fixing TTI position.
In said method, described step B comprises:
B11, UE receiving channels information, and obtain the format information of the receiving channels data of wanting from HS-SCCH according to the positional information of the format information of each channel data that comprises in this channel information;
B12, UE obtain the system bits data of this channel data and it are carried out the demodulation sign indicating number from HS-DSCH according to the format information of obtaining channel data, if success then receives one piece of data down according to step B11; Otherwise, execution in step B13;
B13, UE obtain the check digit data of this channel data according to the format information of obtaining channel data from HS-DSCH, and itself and described system bits data are merged the demodulation sign indicating number, if success then receives one piece of data down according to step B11; Otherwise, execution in step B14;
B14, UE send feedback information by High-Speed Dedicated Physical Control Channel (HS-DPCCH) to NodeB, finish this step B.
In said method, described feedback information comprises non-affirmation nack message and/or channel quality indicator (CQI) information;
In the steps A, the transmission that described NodeB controls next section multicast service data according to the feedback information that receives comprises: form and transmitting power that nack message that the NodeB basis receives and/or CQI information Control send next section multicast service data.
In the step B of said method, described UE sends feedback information to NodeB and is: each UE periodically sends the feedback information that comprises CQI to NodeB.
In sum, NodeB inserts (HSDPA) mode by high speed downlink packet and sends the multicast service data to UE; UE receives the multicast service data, and sends feedback information to NodeB; NodeB sends next section multicast service data according to the feedback information control that is received from UE.Thereby realize that control flexibly sends the transmitting power and the data format of multicast service data, both guaranteed quality of service, effectively utilize the purpose of system resource again.
Description of drawings
Fig. 1 is the channel architecture figure according to the realization multicast service of first embodiment of the invention.
Fig. 2 is a NodeB side implementation method flow chart of realizing multicast service according to first embodiment of the invention.
Fig. 3 is a UE side implementation method flow chart of realizing multicast service according to first embodiment of the invention.
Fig. 4 is the channel architecture figure according to the realization multicast service of second embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
Core concept of the present invention is: NodeB sends the multicast service data by the HSDPA mode to UE; UE receives the multicast service data, and sends feedback information to NodeB; NodeB controls the transmission of next section multicast service data according to the feedback information that is received from UE.Thereby realize that control flexibly sends the transmitting power and the form of multicast service data, both guaranteed quality of service, effectively utilize the purpose of system resource again.
The present invention is described in detail below by specific embodiment.
Fig. 1 illustrates the channel architecture of realizing multicast service according to first embodiment of the invention, as shown in Figure 1, in the first embodiment of the present invention, send to the multicast service data of each channel of UE in the sub-district by HS-DSCH carrying NodeB, these multicast service data comprise the system bits data and the check digit data of each channel data, and the check digit data comprise check digit data that send for the first time and the check digit data that retransmit channel data.In this Fig. 1, CHn represents n channel, and Si represents the system bits of i data, and Pi represents the check digit of i data.The transmission code word of each channel and TTI fix the transmission position in broadcast channel, it sends form and power then can be adjusted according to the feedback information of UE, and the adjustment of the transmitted power of each system bits data and check digit data and form will be according to the non-affirmation (NACK) of up feedback or/and analysis-by-synthesis is carried out in channel quality indication (CQI) determines.Label among above-mentioned Fig. 1 is equally applicable to follow-up Fig. 3.
Channel information and format information by the above-mentioned multicast service data of High-Speed Shared Control Channel (HS-SCCH) carrying; Wherein, the format information that channel information specifically comprises number of channels in the sub-district, each channel designation, each channel data is in the system bits data of the positional information on the HS-SCCH and each channel data and the positional information of check digit data on HS-DSCH etc., and this positional information system bits data of specifically being meant each channel data the check digit data of code word corresponding on the HS-DSCH and TTI positional information and each channel data on HS-DSCH corresponding code word and TTI thereof with respect to the offset information of system bits data place TTI etc.Format information then comprises the format information of the system bits data and the check digit data of each channel data, and this format information specifically is meant modulation system, coded system and rate matching information etc.
By the feedback information of High-Speed Dedicated Physical Control Channel (HS-DPCCH) carrying UE to the NodeB transmission.The feedback information of carrying UE specifically can comprise on HS-DPCCH: nack message is or/and CQI information etc.Here, system distributes a HS-DPCCH for each UE.NodeB is the feedback information of all UE comprehensively, and according to guaranteeing most of UE, the principle that can correctly receive data as the UE more than 95% after sending primary system bit data and check digit data determines that transmitting power and digital coding mode send data.
In addition, also on above-mentioned HS-SCCH, carry the positional information of the format information of the check digit data that need the re-transmission channel data, and on HS-SCCH, carry the format information that this retransmits the check digit data of channel data according to this positional information, and on HS-DSCH carrying this retransmit the check digit data of channel data.
Channel architecture according to the realization multicast service of present embodiment more than has been described, has the following describes multicast service implementation method, comprising in the implementation method of NodeB side with in the implementation method of UE side according to this embodiment.
At first, in the NodeB side, mainly comprise the steps:
Step 201:NodeB sends the channel information of the multicast service data that will send on HS-DSCH by a plurality of UE of HS-SCCH in cell coverage area.
Wherein, the channel information of multicast service data specifically comprises: NodeB is by the number of channels of data that HS-DSCH sends, each channel designation, the positional information of the format information of each channel data on HS-SCCH, the code word and the TTI positional information of the system bits data of each channel data correspondence on HS-DSCH, the code word of the check digit data of each channel data correspondence on HS-DSCH and TTI thereof are with respect to the offset information of system bits data place TTI, and the code word of check digit data correspondence on HS-DSCH of re-transmission channel data and the offset information of TTI relative system bit data place TTI thereof etc.
Step 202:NodeB sends the format information of each channel data to UE according to the positional information of the format information that comprises in the above-mentioned channel information by HS-SCCH, and send each channel service data according to the positional information of corresponding format information and each channel data to UE by HS-DSCH then, comprise the system bits data and the check digit data of each channel data in this business datum.
Wherein, NodeB mainly comprises by the format information of each channel data of HS-SCCH transmission: the modulation system of each channel data, coded system and rate matching information etc.For example: wherein can comprise redundancy versions that UE sign (ID), down channel sign indicating number collection, modulation system, transmitting HARQ Process ID, coding adopt and MAC-hs PDU block size etc.And, NodeB send to UE by HS-SCCH described re-transmission channel data format information step can all retransmit the format information of channel datas in UE sends a carrier frequency by a HS-SCCH for: NodeB.
And, when above-mentioned NodeB transmits the multicast service data by HS-DSCH, owing to both transmitted the system bits data of multicast service data, transmit the check digit data of multicast service data again, therefore can realize when UE can not correctly obtain business datum according to the system bits data that receive, can further obtaining correct business datum according to the check digit data.In addition, when the system bits data of passing through the HS-DSCH service data transmission and check digit data, system bits data and check digit data can be separately positioned on fixing TTI position transmits, thereby reduce the shared stock number of format information, and can be under many cell conditions, realize the soft merging of different districts data, improve system gain.
Step 203:NodeB receives the feedback information that UE sends by HS-DPCCH, and judges whether the channel data that exists needs to retransmit according to this feedback information, if then execution in step 204; Otherwise, execution in step 205.
Wherein, as mentioned above, the feedback information that UE sends can comprise: NACK is or/and CQI information etc.NodeB judges whether to exist the mode of the channel data that needs retransmit specifically can be, for example: when NodeB does not receive the nack message that UE sends in the predefined time, then judge the channel data that does not have needs re-transmission; Otherwise, judge to have the channel data that needs re-transmission.
Step 204:NodeB sends this re-transmission channel data by check digit data from HS-SCCH to UE are the positional information on HS-SCCH in positional information on the HS-DSCH and format information thereof, send the format information of the check digit data of this re-transmission channel data then to UE by HS-SCCH according to the positional information of this format information on HS-SCCH, then according to positional information and the format information of this check digit data check digit data that by HS-DSCH to UE send this re-transmission channel data of the check digit data that retransmit channel data on HS-DSCH, last NodeB judges whether the number of retransmissions to this this segment data of channel surpasses predefined threshold value, if, then lose this segment data of this re-transmission channel, and execution in step 205; Otherwise, continue execution in step 203.
Step 205:NodeB determines to send the transmitting power and the form of next section multicast service data according to the feedback information that receives, and sends next section multicast service data according to determined transmitting power and form to UE then.
Wherein, NodeB specifically can comprise according to the form that the feedback information control that is received from UE sends next section multicast service data: the modulation system of one piece of data and channel coding method etc. under sending according to the feedback information adjustment that receives.For example, when uplink feedback information is nack message, can calculate frame error rate at the sum of the received NACK sum of certain channel service, the data that send and the number of users that receives this channel, i.e. frame error rate=NACK sum/(sending data sum * number of users).If frame error rate surpasses 95%, then determine the transmission form of one piece of data under this channel for dump power resource, sign indicating number resource and the time resource that this channel distributed, and send this format information by HS-SCCH according to current system.Another determines that the example of transmission form is the CQI information according to up feedback, and be dump power resource, sign indicating number resource and the time resource that corresponding channel distributed according to current system equally, obtain at following maximum data block size that can send of current resource situation, and send corresponding format information by HS-SCCH then.Each UE periodically sends the feedback information that comprises CQI to NodeB.
The NodeB side implementation method that realizes multicast service according to present embodiment more than has been described, has the following describes implementation method in the UE side.
Step 301:UE is from HS-SCCH receiving channels information, and obtains the format information of the receiving channels data of wanting from HS-SCCH according to the positional information of the format information of each channel data that is comprised in this channel information.
Step 302:UE is according to the positional information of the system bits data that comprised in the format information of obtaining channel data and the channel information, obtain the system bits data of this channel data from HS-DSCH, and it is carried out the demodulation sign indicating number, if success then receives one piece of data down according to step 301; Otherwise, execution in step 303.
Step 303:UE is according to the positional information of the check digit data that comprised in the format information of obtaining channel data and the channel information, obtain the check digit data of this channel data from HS-DSCH, and itself and system bits data merged, carry out the demodulation sign indicating number then, if success then receives one piece of data down according to step 301; Otherwise, execution in step 304;
In above-mentioned steps 302 and 303, UE comprises according to the concrete steps that the format information of obtaining channel data obtains business datum: UE monitors HS-SCCH in real time, when the UE ID that comprises in the format information of finding the HS-SCCH transmission conforms to the UE ID that distributes to self, receive the service data information of chip (chip) level and carry out despreading from corresponding HS-DSCH according to down channel sign indicating number collection and modulation system, obtain the physical layer bit information.The redundancy versions that UE adopts according to the HARQ Process ID that receives, coding, whether be new data block and MAC-hs PDU block size information, obtain MAC-hs PDU from the physical layer bit information.
Step 304:UE sends such as feedback informations such as NACK and/or CQI information to NodeB by HS-DPCCH, and receive to retransmit the positional information of format information on HS-SCCH of the check digit data of channel data from HS-SCCH, receive the format information of the check digit data of this re-transmission channel data then from HS-SCCH according to this positional information, then according to the positional information of the check digit data of this re-transmission channel data and format information obtains this re-transmission channel data from HS-DSCH check digit data, itself and previous received data are merged, carry out the demodulation sign indicating number, if success then receives one piece of data down according to above-mentioned steps 301; Otherwise, execution in step 305.
In above-mentioned steps 304, UE sends feedback information by HS-DPCCH to NodeB behind 10.5 time slots that begin to receive the service data information on the HS-PDSCH.
Step 305:UE judges whether to continue to receive this re-transmission channel data according to predefined mechanism, if then execution in step 304; Otherwise, abandon this segment data and corresponding process, receive one piece of data down according to above-mentioned steps 301 then.
Wherein, predefined mechanism can be that the reception set retransmits the number of times of channel data or time limit etc., and this mechanism can also can independently be set by consulting to set with the NodeB side.
Multicast service implementation method according to first embodiment of the invention more than has been described, in this embodiment method, by the format information and the channel information of HS-SCCH carrying multicast service data, and by the feedback information of HS-DPCCH to NodeB transmission UE.Thereby make NodeB to control in real time the transmitting power of multicast service data according to the feedback information that is received, both guaranteed the correct transmission of data, the control system resources effective is utilized again.
The following describes multicast service data transferring method according to second embodiment of the invention.In this second embodiment, identical with above-mentioned first embodiment is to adopt HS-DSCH carrying multicast service data equally, and carry the feedback information of UE by HS-DPCCH.But different with first embodiment is in the present embodiment, mainly to carry the channel information of each channel data by broadcast channel, and utilize HS-SCCH to carry the format information of each channel data.
Fig. 4 illustrates the channel architecture of realizing multicast service according to second embodiment of the invention, as shown in Figure 4, in the second embodiment of the present invention, send to the multicast service data of each channel of UE in the sub-district equally by HS-DSCH carrying NodeB, these multicast service data comprise the system bits data and the check digit data of each channel data, and the check digit data comprise the check digit data of transmission for the first time and the check digit data of re-transmission.
Channel information by the above-mentioned multicast service data of broadcast channels carry common public in the sub-district; Wherein, the format information that channel information specifically comprises number of channels in the sub-district, each channel designation, each channel data is in the system bits data of the positional information on the HS-SCCH and each channel data and the positional information of check digit data on HS-DSCH etc., and this positional information system bits data of specifically being meant each channel data the check digit data of code word corresponding on the HS-DSCH and TTI positional information and each channel data on HS-DSCH corresponding code word and TTI thereof with respect to the offset information of system bits data place TTI etc.
And carry the format information of each channel data by HS-SCCH, and comprising the format information of the system bits data and the check digit data of each channel data, and this format information specifically is meant modulation system, coded system and rate matching information etc.
And by the feedback information of HS-DPCCH carrying UE to the NodeB transmission.The feedback information of carrying UE specifically can comprise on HS-DPCCH: ACK/NACK information or CQI information etc.Here, system distributes a HS-DPCCH for each UE.
In addition, also on above-mentioned broadcast channel, carry the positional information of the format information that retransmits channel data, and on HS-SCCH, carry the format information that this retransmits channel data, and on HS-DSCH, carry the business datum that this retransmits channel according to this positional information.
Channel architecture according to the realization multicast service of present embodiment more than has been described, method according to the multicast service implementation method of this embodiment and above-mentioned first embodiment is basic identical, just in above-mentioned first embodiment, NodeB sends the channel information of each channel data by HS-SCCH to UE, and sends the format information of each channel data to UE by HS-SCCH.And in this second embodiment, NodeB then sends the channel information of each channel data by broadcast channel to UE, and sends the format information of each channel data then to UE by HS-SCCH.The benefit of doing like this is to save the power that takies of descending HS-SCCH, and the discontinuous in time circulation of broadcast channel sends, and is therefore very little to the influence of downlink capacity.Because except the channel of the channel information that sends each channel data and format information was different, the method flow of present embodiment and the foregoing description one was basic identical, therefore, omits the detailed description to its method herein.
More than be explanation, in concrete implementation process, can carry out suitable improvement, to adapt to the concrete needs of concrete condition method of the present invention to the specific embodiment of the invention.Therefore be appreciated that according to the specific embodiment of the present invention just to play an exemplary role, not in order to restriction protection scope of the present invention.

Claims (20)

1, a kind of implementation method of multicast service is characterized in that, this method comprises:
A, in node NodeB side, NodeB sends the multicast service data by the high-speed downlink packet access HSDPA mode to user equipment (UE), and controls the transmission of next section multicast service data according to the feedback information that is received from UE; Wherein, NodeB sends the channel information of described multicast service data to UE by high-speed shared control channel HS-SCCH, by HS-SCCH according to the positional information of the format information of each channel data to the format information that UE sends each channel data, send each channel data by high speed downlink shared channel HS-DSCH to UE;
B, in the UE side, UE receives described multicast service data, and sends feedback information to NodeB.
2, method according to claim 1, it is characterized in that described channel information comprises system bits data and check digit data the positional information on high speed downlink shared channel HS-DSCH of the format information of number of channels, each channel designation, each channel data at the positional information on the HS-SCCH and each channel data at least;
Described format information comprises the format information of the system bits data and the check digit data of each channel data at least;
The system bits data and the check digit data that comprise each channel service data in the described channel data.
3, method according to claim 2, it is characterized in that, described step a further comprises: NodeB judges whether to exist the channel data of needs re-transmission according to the feedback information that receives, if, then send the positional information of format information on HS-SCCH of the check digit data of this re-transmission channel data to UE by HS-SCCH, and send the format information of the check digit data of described re-transmission channel data and the check digit data that send this re-transmission channel data by HS-DSCH to UE according to described positional information to UE by HS-SCCH; Otherwise, carry out the described step of controlling the transmission of next section multicast service data according to feedback information.
4, method according to claim 3, it is characterized in that, among the step a, described NodeB sends the check digit data of described re-transmission channel data to UE by HS-SCCH the step of format information comprises: all retransmit the format information of the check digit data of channel datas to NodeB in UE sends a carrier frequency by a HS-SCCH.
According to claim 2 or 3 described methods, it is characterized in that 5, described system bits data and check digit data comprise at least in the positional information on the HS-DSCH: the code word and the Transmission Time Interval TTI positional information of system bits data correspondence on HS-DSCH; And the check digit data on HS-DSCH corresponding code word and TTI thereof with respect to the offset information of the TTI of system bits data.
6, according to claim 2 or 3 described methods, it is characterized in that the format information of described channel data comprises at least: the modulation system of channel data, coded system and rate matching information.
7, according to claim 2 or 3 described methods, it is characterized in that, among the step a, described NodeB comprises to the step that UE sends each channel data by HS-DSCH: NodeB sends the system bits data and the check digit data of described each channel data to UE according to fixing TTI position.
8, according to claim 2 or 3 described methods, it is characterized in that described step b comprises:
B11, UE receiving channels information, and obtain the format information of the receiving channels data of wanting from HS-SCCH according to the positional information of the format information of each channel data that comprises in this channel information;
B12, UE obtain the system bits data of this channel data and it are carried out the demodulation sign indicating number from HS-DSCH according to the format information of obtaining channel data, if success then receives one piece of data down according to step b11; Otherwise, execution in step b13;
B13, UE obtain the check digit data of this channel data according to the format information of obtaining channel data from HS-DSCH, and itself and described system bits data are merged the demodulation sign indicating number, if success then receives one piece of data down according to step b11; Otherwise, execution in step b14;
B14, UE send feedback information by High-Speed Dedicated Physical Control Channel HS-DPCCH to NodeB, finish this step b.
According to each described method in the claim 1 to 3, it is characterized in that 9, described feedback information comprises non-affirmation nack message and/or channel quality indicator (CQI) information;
Among the step a, the transmission that described NodeB controls next section multicast service data according to the feedback information that receives comprises: form and transmitting power that nack message that the NodeB basis receives and/or CQI information Control send next section multicast service data.
10, method according to claim 9 is characterized in that, among the step b, described UE sends feedback information to NodeB and is: each UE periodically sends the feedback information that comprises CQI to NodeB.
11, a kind of implementation method of multicast service is characterized in that, this method comprises:
A, in node NodeB side, NodeB sends the multicast service data by the high-speed downlink packet access HSDPA mode to user equipment (UE), and controls the transmission of next section multicast service data according to the feedback information that is received from UE; Wherein, NodeB sends the channel information of described multicast service data to UE by public broadcast channel, by HS-SCCH according to the positional information of the format information of each channel data to the format information that UE sends each channel data, send each channel data by HS-DSCH to UE;
B, in the UE side, UE receives described multicast service data, and sends feedback information to NodeB.
12, method according to claim 11, it is characterized in that described channel information comprises system bits data and check digit data the positional information on HS-DSCH of the format information of number of channels, each channel designation, each channel data at the positional information on the HS-SCCH and each channel data at least;
Described format information comprises the format information of the system bits data and the check digit data of each channel data at least;
The system bits data and the check digit data that comprise each channel service data in the described channel data.
13, method according to claim 12, it is characterized in that, described steps A further comprises: NodeB judges whether to exist the channel data of needs re-transmission according to the feedback information that receives, if, then send the positional information of format information on HS-SCCH of the check digit data of this re-transmission channel data to UE by broadcast channel, and send the format information of the check digit data of described re-transmission channel data and the check digit data that send this re-transmission channel data by HS-DSCH to UE according to described positional information to UE by HS-SCCH; Otherwise, carry out the described step of controlling the transmission of next section multicast service data according to feedback information.
14, method according to claim 13, it is characterized in that, in the steps A, described NodeB sends the check digit data of described re-transmission channel data to UE by HS-SCCH the step of format information comprises: all retransmit the format information of the check digit data of channel datas to NodeB in UE sends a carrier frequency by a HS-SCCH.
According to claim 12 or 13 described methods, it is characterized in that 15, described system bits data and check digit data comprise at least in the positional information on the HS-DSCH: the code word and the Transmission Time Interval TTI positional information of system bits data correspondence on HS-DSCH; And the check digit data on HS-DSCH corresponding code word and TTI thereof with respect to the offset information of the TTI of system bits data.
16, according to each described method in the claim 11 to 13, it is characterized in that the format information of described channel data comprises at least: the modulation system of channel data, coded system and rate matching information.
17, according to each described method in the claim 11 to 13, it is characterized in that, in the steps A, described NodeB comprises to the step that UE sends each channel data by HS-DSCH: NodeB sends the system bits data and the check digit data of described each channel data to UE according to fixing TTI position.
18, according to each described method in the claim 11 to 13, it is characterized in that described step B comprises:
B11, UE receiving channels information, and obtain the format information of the receiving channels data of wanting from HS-SCCH according to the positional information of the format information of each channel data that comprises in this channel information;
B12, UE obtain the system bits data of this channel data and it are carried out the demodulation sign indicating number from HS-DSCH according to the format information of obtaining channel data, if success then receives one piece of data down according to step B11; Otherwise, execution in step B13;
B13, UE obtain the check digit data of this channel data according to the format information of obtaining channel data from HS-DSCH, and itself and described system bits data are merged the demodulation sign indicating number, if success then receives one piece of data down according to step B11; Otherwise, execution in step B14;
B14, UE send feedback information by High-Speed Dedicated Physical Control Channel HS-DPCCH to NodeB, finish this step B.
According to each described method in the claim 11 to 13, it is characterized in that 19, described feedback information comprises non-affirmation nack message and/or channel quality indicator (CQI) information;
In the steps A, the transmission that described NodeB controls next section multicast service data according to the feedback information that receives comprises: form and transmitting power that nack message that the NodeB basis receives and/or CQI information Control send next section multicast service data.
20, method according to claim 19 is characterized in that, among the step B, described UE sends feedback information to NodeB and is: each UE periodically sends the feedback information that comprises CQI to NodeB.
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