CN102065465A - Method, system and device for transmitting data - Google Patents
Method, system and device for transmitting data Download PDFInfo
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- CN102065465A CN102065465A CN2009102381539A CN200910238153A CN102065465A CN 102065465 A CN102065465 A CN 102065465A CN 2009102381539 A CN2009102381539 A CN 2009102381539A CN 200910238153 A CN200910238153 A CN 200910238153A CN 102065465 A CN102065465 A CN 102065465A
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Abstract
The embodiment of the invention discloses a method, a system and a device for transmitting data. The method comprises the following steps that: network side equipment can determine a channel information measurement set of UE (User Equipment) and obtain symbol positions corresponding to CSI-RS of cells in the channel information measurement set; the network side equipment performs slotting for data resource particles REs of symbol positions corresponding to CSI-RSs of other cooperative cells, except a serving cell of the UE, in the channel information measurement set; and the network side equipment obtains REs used by data to be received by the UE in a resource block RB according to the slotted REs, and transmits data to the UE according to the REs used by the data to be received by the UE. In the embodiment of the invention, by slotting the data REs corresponding to the CSI-RS pilot frequency symbols in the channel information measurement set, the interference of data symbols of adjacent cells in the channel information measurement set on CSI-RS pilot frequency symbols is effectively reduced or avoided, thereby improving the transmission performance of down links.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of transmission method, system and equipment of data.
Background technology
LTE (Long Term Evolution, Long Term Evolution) is 3G (3rd Generation, 3-G (Generation Three mobile communication system)) evolution, LTE improves and has strengthened the aerial access technology of 3G, adopt OFDM (Orthogonal Frequency Division Multiplexing, OFDM) and MIMO (Multiple Input Multiple Output, multiple-input and multiple-output) as the standard of wireless network evolution.And at LTE-A (LTE-Advanced, senior LTE) in the system, adopted OFDMA (OrthogonalFrequency Division Multiple Access, OFDM) access way, make the information-bearing of user in the sub-district on mutually orthogonal different sub carrier, thereby avoided the multiple access between the user to disturb.
But, the OFDMA access way itself do not possess the ability that suppresses presence of intercell interference, thereby the interference that causes influencing the LTE-A systematic function mainly from neighbor cell, i.e. the interference of minizone.And in the LTE-A system, in order to obtain the higher availability of frequency spectrum, mobile communication system will take the mode of identical networking to carry out network design as far as possible.
In the mobile communication system (cellular system) of identical networking, the user of cell edge will be subjected to the interference of neighbor cell signal, and the interference of neighbor cell signal is with the service quality and the throughput of serious restricted cell edge customer.As shown in Figure 1, user 1 serving BS is base station 1, and user 2 serving BS is base station 2, and user 3 serving BS is base station 3.
For down link, user 1 will receive the useful signal of base station 1, and receive the interference signal of base station 2 and base station 3; Same, user 2 will receive the useful signal of base station 2, and receive the interference signal of base station 1 and base station 3; User 3 will receive the useful signal of base station 3, and receive the interference signal of base station 1 and base station 2.
As can be seen, the signal of base station 1, base station 2 and base station 3 emissions, user 1, user 2 and user 3 can receive simultaneously, make the minizone cause interference.
In order to solve the problem that interference is caused in the minizone, base station 1, base station 2 and base station 3 can transmit for jointly user 1, user 2 and user 3 by cooperation way, then interference signal is suppressed, thereby can reduce the interference of minizone effectively, and improve each user's signal received signal to noise ratio.
Concrete, CoMP (Coordinated Multi-point Transmission, cooperative multipoint transmission) system is meant that a plurality of base stations are by cooperation, after the different weighting of subscriber signal process, subscriber signal after the common emission weighting, thereby improve the service quality and the throughput of Cell Edge User, improve the availability of frequency spectrum of system.
As shown in Figure 2, it is the cooperative multicast system of the static cooperation in three base stations, wherein, a collaboration type base station bunch is formed in base station 1, base station 2 and base station 3, user 1, user 2 and user 3 form a collaboration user group, i.e. base station 1, base station 2, base station 3 and user 1, user 2, virtual mimo system of user's 3 common formations.
In down link, the signal for user 1, user 2 and user 3 at first passes through preliminary treatment, unites emission by base station 1, base station 2 and base station 3 then.Wherein, through after the operation of Signal Pretreatment, suppressed user 2 and user's 3 interference signal in the signal that user 1 receives; Same, suppressed user 1 and user's 3 interference signal in the signal that user 2 receives; The interference signal that has suppressed user 1 and user 2 in the signal that user 3 receives.
As can be seen, base station 1, base station 2 and base station 3 transmit for user 1, user 2 and user 3 by cooperation way, thereby have solved the problem that interference is caused in the minizone.
Concrete, the CoMP system among Fig. 2 is the situations of the static cooperation in three base stations, i.e. cooperative base station of Gu Ding three base stations (base station 1, base station 2 and base station 3) composition bunch, and parallel connection is combined into the collaboration user group downlink data transmission is provided.
In addition, the CoMP system can also carry out dynamic cooperative, the selection that is cooperative base station is determined by each user's performance, and each user can select the best base station of some channel qualities to carry out the reception of useful signal, and the base station of cooperation also can dynamically select to disturb the strongest interference signal to eliminate; At this moment, each user-selected cooperative base station bunch may be overlapped, and corresponding performance is identical with the situation of the static cooperation in base station, and performance makes moderate progress, but the complexity of dispatching is higher.
In the prior art, the process of transmitting of downlink data may further comprise the steps as shown in Figure 3 in the above-mentioned mobile communication system:
Step 301, base station side is to UE (User Equipment, subscriber equipment) notice RRM (RadioResource Management, RRM) measuring assembly; Perhaps, UE self precognition RRM measures collection.
Step 302, the RSRP of the sub-district that comprises in the UE measure R RM measuring assembly (Reference SignalReceiving Power, Reference Signal Received Power) value, perhaps RSRQ (Reference SignalReceiving Quality, Reference Signal Received Quality) is worth, and reports to base station side.
Step 303, base station side are determined the serving BS of UE according to the reported result of UE.Wherein, each UE only has a serving BS.
Step 304, base station side is notified to UE with the serving BS of determining.
Step 305, UE measures the channel condition information of serving BS, and feeds back to serving BS.
Step 306, serving BS carries out scheduling of resource and distribution according to the channel condition information of UE feedback.
Employed resource particle RE when step 307, serving BS are determined to this UE scheduling, wherein, this RE is arranged in Resource Block RB, is used to send UE data to be received.
Concrete, when from RB, selecting UE to dispatch employed RE, need avoid the shared RE of PDCCH (PhysicalDownlink Control Channel, Physical Downlink Control Channel), and the shared RE of serving BS frequency pilot sign.
Step 308, serving BS sends downlink data by using above-mentioned definite UE to dispatch employed RE to UE.
In realizing process of the present invention, the inventor finds to exist at least in the prior art following problem:
The adjacent district pilots distribution schematic diagram of correspondence during as shown in Figure 4 a kind of non-cooperative multicast system, pairing 14 the OFDM Symbols*12 sub-carriers in each base station are a Resource Block RB, and each lattice among this Resource Block RB (i.e. 1 OFDM Symbols*1 sub-carriers) is a resource particle RE.
Because when the data that UE is to be received send on the RE that serving BS dispatches for this UE, avoid the shared RE of PDCCH (preceding 2 row of Subframe or 3 row OFDM symbols), and the shared RE of serving BS frequency pilot sign (public guide frequency CRS, dedicated pilot UE-specific RS).According to existing LTE agreement, the CRS of neighbor cell and UE-specific RS will carry out frequency shifting (frequency displacement) according to the CellID of base station on frequency domain resource, on identical RE resource strong jamming takes place with the pilot tone of avoiding adjacent base station.Though Frequency shifting can avoid the pilot tone of adjacent base station on identical RE strong jamming to take place, but can not avoid the interference of the data RE of adjacent base station to the frequency pilot sign of current base station.
As shown in Figure 4, on the RE position of the frequency pilot sign that sends in base station 1, base station 2 and base station 3 have all sent data (Data), and promptly the Data RE of adjacent base station can reduce base station 1 performance for estimating channel to the interference of the frequency pilot sign of current base station 1.
Same, for cooperative multicast system shown in Figure 2, also there is same problem.Wherein, the LTE-A system need realize CSI (Channel State Information for LTE-A user, channel condition information) measures a kind of new pilot reference signal of definition, this pilot reference signal is CSI-RS, be cell-specific, CSI-RS between the neighbor cell has a shifting on the resource according to Cell ID, and (the resource shifting of CSI-RS may occur on the time domain, also may occur on the frequency domain), on identical RE resource strong jamming takes place with the CSI-RS that avoids adjacent base station.If according to existing Data send mode, can not avoid the interference of the data RE of adjacent base station, and have a strong impact on the channel measurement of CSI-RS the CSI-RS frequency pilot sign of current base station.
Summary of the invention
The embodiment of the invention provides a kind of transmission method, system and equipment of data, to avoid the interference of data RE to CSI-RS, improves the channel measurement quality of CSI-RS.
In order to achieve the above object, the embodiment of the invention has proposed a kind of transmission method of data, may further comprise the steps:
Network equipment is determined the channel information measurement collection of user equipment (UE), and obtains the pairing character position of pilot reference signal CSI-RS that described channel information measurement is concentrated the sub-district;
Described network equipment is concentrated described channel information measurement the data resource particle RE punching of the pairing character position of CSI-RS of other cooperation cell outside the Serving cell of UE place;
Described network equipment obtains described UE according to the RE after punching and waits to receive the employed RE of data in Resource Block RB, and waits to receive the employed RE of data to described UE transmission data according to described UE.
Preferably, described network equipment concentrates described channel information measurement the data resource particle RE punching of the pairing character position of CSI-RS of other cooperation cell outside the Serving cell of UE place to comprise:
Described network equipment is concentrated described channel information measurement the data RE punching of the pairing character position of CSI-RS of all cooperation cell outside the Serving cell of UE place; Perhaps,
Described network equipment is concentrated described channel information measurement the data RE punching of the pairing character position of CSI-RS of the partial cooperative sub-district outside the Serving cell of UE place.
Preferably, the RE of described network equipment after according to punching obtains described UE and waits to receive the employed RE of data and comprise in Resource Block RB:
The described UE of RE resource acquisition that described network equipment does not punch from described RB waits to receive the employed RE of data.
Preferably, described network equipment from described RB not the described UE of RE resource acquisition of punching wait to receive the employed RE of data and specifically comprise:
Described network equipment is avoided shared RE and the shared RE of frequency pilot sign of physical downlink control channel PDCCH among the described RB, and the described UE of RE resource acquisition that does not punch from described RB waits to receive the employed RE of data.
Preferably, waiting to receive the employed RE of data according to described UE comprises to described UE transmission data:
Described network equipment sends CSI-RS by the pairing character position of CSI-RS that uses sub-district, UE place to described UE, and uses described UE to wait to receive the pairing RE of data to described UE transmission data.
A kind of transmission system of data comprises:
Network equipment is used for determining the channel information measurement collection of UE obtaining the pairing character position of CSI-RS that described channel information measurement is concentrated the sub-district; Described channel information measurement is concentrated the data RE punching of the pairing character position of CSI-RS of other cooperation cell outside the Serving cell of UE place; And in RB, obtain described UE according to the RE after the punching and wait to receive the employed RE of data, and use described UE to wait to receive the employed RE of data to described UE transmission data;
UE is used for waiting to receive the data that receive on the employed RE of data from described network equipment at described UE.
A kind of transmission equipment of data comprises:
Determination module is used for determining the channel information measurement collection of UE, and obtains the pairing character position of CSI-RS that described channel information measurement is concentrated the sub-district;
Processing module, the channel information measurement that is used for that described determination module is determined are concentrated the data RE punching of the pairing character position of CSI-RS of other cooperation cell outside the Serving cell of UE place;
Acquisition module is used for obtaining described UE according to the RE after the described processing module punching at RB and waits to receive the employed RE of data;
Transport module is used for waiting to receive the employed RE of data according to the UE that described acquisition module obtains and sends data to described UE.
Preferably, described processing module specifically is used for, and described channel information measurement is concentrated the data RE punching of the pairing character position of CSI-RS of all cooperation cell outside the Serving cell of UE place; Perhaps,
Described channel information measurement is concentrated the data RE punching of the pairing character position of CSI-RS of the partial cooperative sub-district outside the Serving cell of UE place.
Preferably, described acquisition module specifically is used for, and the described UE of RE resource acquisition of punching does not wait to receive the employed RE of data from described RB.
Preferably, described acquisition module also is used for, and avoids shared RE and the shared RE of frequency pilot sign of PDCCH among the described RB, and the described UE of RE resource acquisition that does not punch from described RB waits to receive the employed RE of data.
Preferably, described transport module specifically is used for, and sends CSI-RS by the pairing character position of CSI-RS that uses sub-district, UE place to described UE, and uses described UE to wait to receive the pairing RE of data to described UE transmission data.
Compared with prior art, the present invention has the following advantages: by CSI-RS frequency pilot sign data of corresponding positions RE (Data RE) punching with sub-district in the channel information measurement collection, reduce effectively or avoided of the interference of the data symbol of neighbor cell in the channel information measurement collection, improved the transmission performance of down link the CSI-RS frequency pilot sign.
Description of drawings
In order to be illustrated more clearly in the present invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in the present invention or the description of the Prior Art below, apparently, accompanying drawing in describing below only is accompanying drawings more of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic diagram of mobile communication system in the prior art;
Fig. 2 is the schematic diagram of the cooperative multicast system during static cooperation between three base stations in the prior art;
Fig. 3 is the process of transmitting schematic diagram of downlink data in the mobile communication system in the prior art;
Fig. 4 is the adjacent district pilots distribution schematic diagram of correspondence during non-cooperative multicast system in the prior art;
Fig. 5 is the transmission method flow chart of a kind of data of embodiment of the invention proposition;
Fig. 6 is the transmission method flow chart of the following data that proposed of a kind of concrete application scenarios of the embodiment of the invention;
Fig. 7 is a multi-cell cooperating schematic diagram under a kind of concrete application scenarios of the embodiment of the invention;
Fig. 8 is the structure chart of the transmission equipment of a kind of data of embodiment of the invention proposition.
Embodiment
In the embodiment of the invention, in prior art, data RE has proposed a kind of data transmission method of coordinate multipoint to the interference problem of CSI-RS frequency pilot sign in the cooperative multicast system, to avoid the interference of neighbor cell data RE to the CSI-RS frequency pilot sign as much as possible.
Concrete, in existing cooperative multicast system, base station side needs more channel information to carry out signal processing, and promptly base station side need increase channel information measurement collection of a signaling user; This channel information measurement is concentrated and is comprised the sub-district ID that needs are measured, and after the user receives this channel information measurement collection, need carry out channel measurement to the CSI-RS that measures all sub-districts in the collection.If there be of the interference of the data of neighbor cell, will seriously influence the channel measurement of CSI-RS to CSI-RS.
And in the embodiment of the invention, for user's data to be received, when on the RB that gives this user's scheduling, sending, base station side is by the RE of the CSI-RS pilot frequency symbol position of all sub-districts in the channel information measurement collection of avoiding this user, to avoid the interference of neighbor cell data RE to the CSI-RS frequency pilot sign as much as possible, the data that make the user send then can not cause interference to the CSI-RS in this user's the channel information measurement collection.
Below in conjunction with the accompanying drawing among the present invention, the technical scheme among the present invention is clearly and completely described, obviously, described only is a part of the present invention, rather than whole.Based on the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other invention that is obtained under the creative work prerequisite.
The transmission method of a kind of data that the embodiment of the invention proposes as shown in Figure 5, may further comprise the steps:
Described network equipment concentrates described channel information measurement the data resource particle RE punching of the pairing character position of CSI-RS of other cooperation cell outside the Serving cell of UE place to comprise: described network equipment is concentrated described channel information measurement the data RE punching of the pairing character position of CSI-RS of all cooperation cell outside the Serving cell of UE place; Perhaps, described network equipment is concentrated described channel information measurement the data RE punching of the pairing character position of CSI-RS of the partial cooperative sub-district outside the Serving cell of UE place.
Concrete, described network equipment obtains described UE according to the RE after punching and waits that receiving the employed RE of data comprises in Resource Block RB: the described UE of RE resource acquisition that described network equipment does not punch from described RB waits to receive the employed RE of data.
Further, the described UE of RE resource acquisition that described network equipment does not punch from described RB waits that receiving the employed RE of data specifically comprises: described network equipment is avoided shared RE and the shared RE of frequency pilot sign of physical downlink control channel PDCCH among the described RB, and the described UE of RE resource acquisition that does not punch from described RB waits to receive the employed RE of data.
Waiting to receive the employed RE of data according to described UE comprises to described UE transmission data: described network equipment sends CSI-RS by the pairing character position of CSI-RS that uses sub-district, UE place to described UE, and uses described UE to wait to receive the pairing RE of data to described UE transmission data.
As seen, the method that the application of the invention embodiment is provided has the following advantages:
By CSI-RS frequency pilot sign data of corresponding positions RE (Data RE) punching with sub-district in the channel information measurement collection, reduce effectively or avoided of the interference of the data symbol of neighbor cell in the channel information measurement collection, improved the transmission performance of down link the CSI-RS frequency pilot sign.
As shown in Figure 6, in the embodiment of the invention in conjunction with a kind of concrete application scenarios, the detailed description that the transmission method of data is carried out, should be with under the scene, the transmission method of these data be at the cooperative multicast system among existing LTE-A.Need to prove; in embodiments of the present invention; the equipment of network side includes but not limited to RNC (Radio Network Controller; radio network controller), NB (Node B, Node B), eNB (Evolved Node B), base station etc., in addition; this network equipment is not limited to the said equipment; all within protection range of the present invention, for convenience of description, this network equipment is that example describes with the base station to all equipment that are positioned at network side in the embodiment of the invention.
Concrete, above-mentioned data transmission method may further comprise the steps:
Step 601, the base station is to UE notice RRM measuring assembly; Perhaps, UE knows that in advance RRM measures collection.
Concrete, the target of RRM measuring assembly is under band-limited condition, for the UE in the network provides the quality of service guarantee, thereby flexible allocation is also dynamically adjusted wireless transmission part and network available resources, farthest improve the wireless frequency spectrum utilance, prevent network congestion and keep as far as possible little signaling traffic load; Thereby guaranteeing to insert more user under the stable prerequisite in sub-district, improving the capacity of whole system.
As can be seen, by using this RRM measuring assembly, this UE can obtain can be for self providing the sub-district of service, then can know the serving BS (comprising that RRM measures serving BS, other cooperative base station of concentrating) of self, this process is existing execution mode, gives unnecessary details no longer in detail in the embodiment of the invention.
Step 602 comprises the RSRP value of sub-district in the UE measure R RM measuring assembly, perhaps, and the RSRQ value, and to the result of base station reporting measurement.Wherein, the RSRP value is the absolute value of Serving cell Reference Signal Received Power, and the RSRQ value is the relative value between Serving cell Reference Signal Received Power and the neighbor cell Reference Signal Received Power.
Step 603, base station are determined serving BS and the channel information measurement collection of UE.Wherein, after the base station receives the measurement result that UE reports, can determine serving BS and the channel information measurement collection of this UE according to this measurement result, this channel information measurement is concentrated may comprise a plurality of sub-districts.
Concrete, in cooperative multicast system, owing to need between a plurality of base stations signal to be handled, thereby caused needs more channel information in base station to carry out signal processing by cooperation, at this moment, the channel information measurement collection of UE need be determined in this base station.
For example, when needing between base station 1, base station 2 and the base station 3 signal to be handled by cooperation, then the channel information measurement collection will be formed in base station 1, base station 2 and base station 3, and the channel information measurement collection of all UE within sub-district 1 (corresponding to base station 1), sub-district 2 (corresponding to base station 2) and sub-district 3 (corresponding to the base station 3) is base station 1, base station 2 and base station 3.
Step 604, the base station is notified to corresponding UE with serving BS and the channel information measurement collection of determining.For example, in the time of within UE is positioned at sub-district 1, then the serving BS of this UE is base station 1, the channel information measurement collection is base station 1, base station 2 and base station 3, be in this step, the serving BS that is notified to UE is base station 1, and the channel information measurement collection that is notified to UE is base station 1, base station 2 and base station 3.
Certainly, according to the actual needs, the serving BS of this UE correspondence can be given UE by identical signaling with the channel information measurement collection; In addition, in the embodiment of the invention, can also notify the channel information measurement collection of UE correspondence by increasing a signaling, this advice method repeats no more in the embodiment of the invention for optional according to actual needs.
The channel condition information that step 605, the information measurement of UE measured channel are concentrated, and to the channel information of all sub-districts of base station feedback channel information measurement collection, perhaps, the channel information of feedback fraction sub-district.
In this step, after UE receives the channel information measurement collection, need concentrate the CSI-RS of all sub-districts to carry out channel measurement to channel information measurement.For example, when UE is positioned at sub-district 1, when the base station that channel information measurement is concentrated is base station 1, base station 2 and base station 3, then in this step, this UE need measure the channel condition information of sub-district 1, sub-district 2 and sub-district 3, and the CSI-RS of sub-district 1, sub-district 2 and sub-district 3 carried out channel measurement, this metering system is identical with existing metering system, repeats no more in this step.
Concrete, after measurement was finished, according to the needs of self, this UE can be to the channel information of all sub-districts of base station feedback channel information measurement collection, and perhaps, this UE can also be to the channel information of the part sub-district of base station feedback channel information measurement collection.For example, when UE is known when self only needing base station 1 and base station 2 to cooperate promptly can to realize to self processing, can be only to the channel information of base station feedback sub-district 1 and sub-district 2.
Step 606, scheduling of resource and distribution are carried out, the promptly base station selected cooperative base station that service is provided for UE according to the channel condition information of UE feedback in the base station.
Step 607, the CSI-RS frequency pilot sign data of corresponding positions RE punching with sub-district in the channel information measurement collection promptly makes the RE of this position not transmit any information.Wherein, the main body of carrying out this step can be for controlling the equipment of above-mentioned cooperative base station, for example, when base station 1, base station 2 and base station 3 need cooperative work, and provide when service to above-mentioned UE, then carry out the equipment of the main body of this step, for example for control base station 1, base station 2 and base station 3, in Fig. 3, can be the combined signal treatment facility; In the embodiment of the invention, be that cooperative base station is that example describes with the main body of carrying out this step.
Concrete, the position of CSI-RS frequency pilot sign can be selected according to the actual needs, the technical scheme that the position of CSI-RS frequency pilot sign does not influence in the embodiment of the invention to be provided.For example, in above-mentioned channel information measurement collection, corresponding district is respectively sub-district 1, sub-district 2 and sub-district 3, the position of the CSI-RS frequency pilot sign of sub-district 1 correspondence is position 1, the position of the CSI-RS frequency pilot sign of sub-district 2 correspondences is position 2, and the position of the CSI-RS frequency pilot sign of sub-district 3 correspondences is position 3.
In this step, the RE punching of the CSI-RS frequency pilot sign correspondence position of sub-district in the channel information measurement collection is specially: in the RE position of Serving cell CSI-RS frequency pilot sign correspondence, cooperation cell can not be transmitted the CSI-RS frequency pilot sign, with the data RE punching of this position of cooperation cell.For example, in the RB that sends to sub-district 1, because position 1 needs the CSI-RS frequency pilot sign of transmission Serving cell 1, and the CSI-RS frequency pilot sign can not be transmitted in the position 2 of cooperation cell and position 3, at this moment, and need be with the data RE punching of position 2 and position 3; Same, in the RB that sends to sub-district 2, need be punched in the position 1 of cooperation cell and the data RE of position 3; In the RB that sends to sub-district 3, need be punched in the position 1 of cooperation cell and the data RE of position 2.
Need to prove, in this step, according to the actual needs, can be with the CSI-RS frequency pilot sign data of corresponding positions RE resource punching of all sub-districts in the channel information measurement collection; Also can be with the CSI-RS frequency pilot sign data of corresponding positions RE resource punching of part sub-district in the channel information measurement collection.Certainly, in the application of reality,, need CSI-RS frequency pilot sign data of corresponding positions RE resource punching with all sub-districts in order to guarantee the interference effect minimum of data to CSI-RS.
RE resource after step 608, cooperative base station are punched according to CSI-RS, the data RE when determining among the employed Resource Block RB to this UE scheduling, wherein, this RE is arranged in Resource Block RB, is used to send UE data to be received.Promptly when sending UE data to be received, need avoid the RE that punches because of CSI-RS.
In addition, need to prove, when sending UE data to be received, also need to avoid shared RE resource of control channel PDCCH and the shared RE resource of frequency pilot sign, promptly in embodiments of the present invention, for UE data to be received, need under the situation of the RE resource of avoiding the shared RE resource of PDCCH, the shared RE resource of frequency pilot sign and punching, determine the employed RE resource of this UE data to be received because of CSI-RS.
Step 609, cooperative base station sends downlink data to UE.In this step, can use the RE resource that above-mentioned steps determines (promptly avoid the shared RE resource of PDCCH, the shared RE resource of frequency pilot sign and the RE resource of punching because of CSI-RS outside the RE resource) transmit this downlink data (being above-mentioned UE data to be received).
As can be seen, in the embodiment of the invention, RE resource transmission downlink data outside the RE resource of avoiding falling by use because of CSI-RS (CSI-RS in the channel information measurement collection) punching, make downlink data can not cause interference to CSI-RS in the channel information measurement collection, and each UE is when sending data according to above-mentioned data transmission method, then can effectively reduce or avoid of the interference of the data symbol of neighbor cell within the channel information measurement collection, significantly improve the transmission performance of down link the CSI-RS frequency pilot sign.
Wherein, in the method that the embodiment of the invention provided, each step can also be adjusted according to the actual needs.
As seen, the method that the application of the invention embodiment is provided has the following advantages:
By CSI-RS frequency pilot sign data of corresponding positions RE (Data RE) punching with sub-district in the channel information measurement collection, reduce effectively or avoided of the interference of the data symbol of neighbor cell in the channel information measurement collection, improved the transmission performance of down link the CSI-RS frequency pilot sign.
As shown in Figure 7, below in conjunction with two kinds of concrete application scenarioss, above-mentioned data transmission method is further detailed.
(1) the channel information measurement collection does not overlap.
This application scenarios is static cooperation between a plurality of base stations (typical scene is static cooperation between 3 base stations), as shown in Figure 7, the channel information measurement collection is formed in base station 1, base station 2 and base station 3, corresponding, the channel information measurement collection of all UE within sub-district 1, sub-district 2 and the sub-district 3 (UE1, UE2 and UE3) is base station 1, base station 2 and base station 3.
Same, one other channel information measurement collection is formed in base station 4, base station 5 and base station 6, corresponding, the channel information measurement collection of all UE within sub-district 4, sub-district 5 and the sub-district 6 (UE4, UE5 and UE6) is base station 4, base station 5 and base station 6.
In the embodiment of the invention, all UE within sub-district 1, sub-district 2 and the sub-district 3, on the RB of scheduling, the corresponding RE resource location of PDCCH need avoided, the corresponding RE resource location of frequency pilot sign, and CSI-RS 1 (CSI-RS of sub-district 1), CSI-RS2 (CSI-RS of sub-district 2), the corresponding RE resource location of CSI-RS3 (CSI-RS of sub-district 3), Data RE transmitting data in addition; For example, when the transmission of the UE in sub-district 1 data, the CSI-RS1 of Serving cell 1 correspondence is used to transmit the CSI-RS of this Serving cell 1, and the CSI-RS3 of the CSI-RS2 of cooperation cell 2 and cooperation cell 3 corresponding RE position on the RB of Serving cell 1 has been perforated, on the basis of avoiding corresponding RE resource location of PDCCH and the corresponding RE resource location of frequency pilot sign, can from RB, select UE to wait to receive the employed Data RE of data, then the data of the UE in this Serving cell 1 of transmission on this Data RE.Same, the processing procedure of the UE in UE in the sub-district 2 and the sub-district 3 is similar, does not repeat them here.
All UE within sub-district 4, sub-district 5 and the sub-district 6, on the RB of scheduling, the corresponding RE resource location of PDCCH need avoided, the corresponding RE resource location of frequency pilot sign, and CSI-RS4 (CSI-RS of sub-district 4), CSI-RS5 (CSI-RS of sub-district 5), the corresponding RE resource location of CSI-RS6 (CSI-RS of sub-district 6), Data RE transmitting data in addition.The processing procedure of UE in UE in the sub-district 4, the sub-district 5 and the processing procedure of the UE in the sub-district 6 and the UE in the sub-district 1 is similar, does not repeat them here.
At this moment, the neighbor cell data within the channel information measurement collection can not cause interference to the CSI-RS of current area.
(2) the channel information measurement collection partially overlaps.
This application scenarios is a dynamic cooperative between the base station, as shown in Figure 7, supposes that the channel information measurement collection of UE3 is made up of base station 1, base station 2 and base station 3, and the channel information measurement collection of UE7 is made up of base station 3, base station 4 and base station 5.
UE3 need avoid the corresponding RE resource location of PDCCH, the corresponding RE resource location of frequency pilot sign, and CSI-RS1, CSI-RS2, the corresponding RE resource location of CSI-RS3, Data RE transmitting data in addition on the RB of scheduling;
And UE7 need avoid the corresponding RE resource location of PDCCH on the RB of scheduling, the corresponding RE resource location of frequency pilot sign, and CSI-RS3, and CSI-RS4, the corresponding RE resource location of CSI-RS5, Data RE in addition uploads data.
At this moment, though CSI-RS may be subjected to the interference of neighbor cell data on part RB, the neighbor cell data within the channel information measurement collection causes interference less to the CSI-RS of current area.
The embodiment of the invention has also proposed a kind of transmission system of data, comprising:
Network equipment is used for determining the channel information measurement collection of UE obtaining the pairing character position of CSI-RS that described channel information measurement is concentrated the sub-district; Described channel information measurement is concentrated the data RE punching of the pairing character position of CSI-RS of other cooperation cell outside the Serving cell of UE place; And in RB, obtain described UE according to the RE after the punching and wait to receive the employed RE of data, and use described UE to wait to receive the employed RE of data to described UE transmission data.
UE is used for waiting to receive the data that receive on the employed RE of data from described network equipment at described UE.
The transmission equipment of a kind of data that the embodiment of the invention also proposes as shown in Figure 8, comprising:
Described processing module 81 specifically is used for, and described channel information measurement is concentrated the data resource particle RE punching of the pairing character position of CSI-RS of all cooperation cell outside the Serving cell of UE place; Perhaps,
Described channel information measurement is concentrated the data resource particle RE punching of the pairing character position of CSI-RS of the partial cooperative sub-district outside the Serving cell of UE place.
In the embodiment of the invention, described acquisition module 83 specifically is used for, and the described UE of RE resource acquisition of punching does not wait to receive the employed RE of data from described RB.
Further, described acquisition module 83 also is used for, and avoids shared RE and the shared RE of frequency pilot sign of physical downlink control channel PDCCH among the described RB, and the described UE of RE resource acquisition that does not punch from described RB waits to receive the employed RE of data.
In the embodiment of the invention, described transport module 84 specifically is used for, and sends CSI-RS by the pairing character position of CSI-RS that uses sub-district, UE place to described UE, and uses described UE to wait to receive the pairing RE of data to described UE transmission data.
Wherein, each module of apparatus of the present invention can be integrated in one, and also can separate deployment.Above-mentioned module can be merged into a module, also can further split into a plurality of submodules.
As seen, system that the application of the invention provides and device have the following advantages:
By CSI-RS frequency pilot sign data of corresponding positions RE (Data RE) punching with sub-district in the channel information measurement collection, reduce effectively or avoided of the interference of the data symbol of neighbor cell in the channel information measurement collection, improved the transmission performance of down link the CSI-RS frequency pilot sign.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by hardware, also can realize by the mode that software adds necessary general hardware platform.Based on such understanding, technical scheme of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise that some instructions are with so that a computer equipment (can be personal computer, server, perhaps network equipment etc.) is carried out method of the present invention.
The above only is a preferred implementation of the present invention; should be understood that; under the prerequisite that does not break away from the principle of the invention, can also make some improvements and modifications for those skilled in the art, these improvements and modifications also should be looked protection scope of the present invention.
It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be merged into a module, also can further split into a plurality of submodules.
The invention described above sequence number is not represented the quality of embodiment just to description.
More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (11)
1. the transmission method of data is characterized in that, may further comprise the steps:
Network equipment is determined the channel information measurement collection of user equipment (UE), and obtains the pairing character position of pilot reference signal CSI-RS that described channel information measurement is concentrated the sub-district;
Described network equipment is concentrated described channel information measurement the data resource particle RE punching of the pairing character position of CSI-RS of other cooperation cell outside the Serving cell of UE place;
Described network equipment obtains described UE according to the RE after punching and waits to receive the employed RE of data in Resource Block RB, and waits to receive the employed RE of data to described UE transmission data according to described UE.
2. the method for claim 1 is characterized in that, described network equipment concentrates described channel information measurement the data resource particle RE punching of the pairing character position of CSI-RS of other cooperation cell outside the Serving cell of UE place to comprise:
Described network equipment is concentrated described channel information measurement the data RE punching of the pairing character position of CSI-RS of all cooperation cell outside the Serving cell of UE place; Perhaps,
Described network equipment is concentrated described channel information measurement the data RE punching of the pairing character position of CSI-RS of the partial cooperative sub-district outside the Serving cell of UE place.
3. the method for claim 1 is characterized in that, the RE of described network equipment after according to punching obtains described UE and wait to receive the employed RE of data and comprise in Resource Block RB:
The described UE of RE resource acquisition that described network equipment does not punch from described RB waits to receive the employed RE of data.
4. method as claimed in claim 3 is characterized in that, the described UE of RE resource acquisition that described network equipment does not punch from described RB waits to receive the employed RE of data and specifically comprises:
Described network equipment is avoided shared RE and the shared RE of frequency pilot sign of physical downlink control channel PDCCH among the described RB, and the described UE of RE resource acquisition that does not punch from described RB waits to receive the employed RE of data.
5. as each described method of claim 1-4, it is characterized in that, wait to receive the employed RE of data according to described UE and comprise to described UE transmission data:
Described network equipment sends CSI-RS by the pairing character position of CSI-RS that uses sub-district, UE place to described UE, and uses described UE to wait to receive the pairing RE of data to described UE transmission data.
6. the transmission system of data is characterized in that, comprising:
Network equipment is used for determining the channel information measurement collection of UE obtaining the pairing character position of CSI-RS that described channel information measurement is concentrated the sub-district; Described channel information measurement is concentrated the data RE punching of the pairing character position of CSI-RS of other cooperation cell outside the Serving cell of UE place; And in RB, obtain described UE according to the RE after the punching and wait to receive the employed RE of data, and use described UE to wait to receive the employed RE of data to described UE transmission data;
UE is used for waiting to receive the data that receive on the employed RE of data from described network equipment at described UE.
7. the transmission equipment of data is characterized in that, comprising:
Determination module is used for determining the channel information measurement collection of UE, and obtains the pairing character position of CSI-RS that described channel information measurement is concentrated the sub-district;
Processing module, the channel information measurement that is used for that described determination module is determined are concentrated the data RE punching of the pairing character position of CSI-RS of other cooperation cell outside the Serving cell of UE place;
Acquisition module is used for obtaining described UE according to the RE after the described processing module punching at RB and waits to receive the employed RE of data;
Transport module is used for waiting to receive the employed RE of data according to the UE that described acquisition module obtains and sends data to described UE.
8. equipment as claimed in claim 7 is characterized in that,
Described processing module specifically is used for, and described channel information measurement is concentrated the data RE punching of the pairing character position of CSI-RS of all cooperation cell outside the Serving cell of UE place; Perhaps,
Described channel information measurement is concentrated the data RE punching of the pairing character position of CSI-RS of the partial cooperative sub-district outside the Serving cell of UE place.
9. equipment as claimed in claim 7 is characterized in that,
Described acquisition module specifically is used for, and the described UE of RE resource acquisition of punching does not wait to receive the employed RE of data from described RB.
10. equipment as claimed in claim 9 is characterized in that,
Described acquisition module also is used for, and avoids shared RE and the shared RE of frequency pilot sign of PDCCH among the described RB, and the described UE of RE resource acquisition that does not punch from described RB waits to receive the employed RE of data.
11. as each described equipment of claim 7-10, it is characterized in that,
Described transport module specifically is used for, and sends CSI-RS by the pairing character position of CSI-RS that uses sub-district, UE place to described UE, and uses described UE to wait to receive the pairing RE of data to described UE transmission data.
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102368697A (en) * | 2011-09-30 | 2012-03-07 | 中兴通讯股份有限公司 | Interference measurement signaling notification method, interference measurement method, feedback method and apparatuses thereof |
| CN103313294A (en) * | 2012-03-13 | 2013-09-18 | 中兴通讯股份有限公司 | Method and device for measuring received signal quality and allocating received signal quality measurement assembly |
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| CN103476121A (en) * | 2012-06-05 | 2013-12-25 | 株式会社日立制作所 | Method and apparatus for bit-level PDSCH muting and/or receiver puncturing in LTE-advanced heterogeneous networks |
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| CN103858361A (en) * | 2011-10-07 | 2014-06-11 | 黑莓有限公司 | Interference management in a wireless network |
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| US9425946B2 (en) | 2013-02-21 | 2016-08-23 | Blackberry Limited | Interference measurement methods for advanced receiver in LTE/LTE-A |
| WO2017121183A1 (en) * | 2016-01-11 | 2017-07-20 | 中兴通讯股份有限公司 | Transmission method and device, access network element, user equipment and storage medium |
| CN107425951A (en) * | 2011-08-16 | 2017-12-01 | Lg 电子株式会社 | The method and its equipment of base station multiplexed downlink control channels in a wireless communication system |
| CN109474389A (en) * | 2017-09-08 | 2019-03-15 | 维沃移动通信有限公司 | Processing method, user terminal and the network side equipment that downlink reference signal occupies |
| CN110224768A (en) * | 2012-06-26 | 2019-09-10 | Oppo广东移动通信有限公司 | The mobility measurements of CSI-RS are used in additional carrier |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6987391B2 (en) * | 2003-06-16 | 2006-01-17 | Andeen-Hagerling, Inc. | Apparatus for and method of synchronous rejection |
| CN101325573A (en) * | 2007-06-14 | 2008-12-17 | 北京三星通信技术研究有限公司 | Apparatus and method for subsection transmission of transmission block |
-
2009
- 2009-11-17 CN CN 200910238153 patent/CN102065465B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6987391B2 (en) * | 2003-06-16 | 2006-01-17 | Andeen-Hagerling, Inc. | Apparatus for and method of synchronous rejection |
| CN101325573A (en) * | 2007-06-14 | 2008-12-17 | 北京三星通信技术研究有限公司 | Apparatus and method for subsection transmission of transmission block |
Non-Patent Citations (1)
| Title |
|---|
| 3GPP TSGRAN: "《3GPP TS 36.211》", 30 September 2009 * |
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