CN101931514A - Communication method, system and equipment for hybrid automatic repeat request - Google Patents
Communication method, system and equipment for hybrid automatic repeat request Download PDFInfo
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Abstract
The embodiment of the invention discloses a communication method, a communication system and communication equipment for a hybrid automatic repeat request. The method comprises the following steps that: network equipment positioned in a service cell acquires a transmission interval under CoMP; the network equipment positioned in the service cell sends CoMP configuration information to UE, the CoMP configuration information carries the transmission interval information under the CoMP, and the UE acquires the transmission interval under the CoMP according to the CoMP configuration information; and the network equipment positioned in the service cell performs data interaction with the UE according to the transmission interval under the CoMP. By expanding the transmission interval of the conventional LTE system, the requirement of data transmission interval under the CoMP technology can also be met under the condition of compatibility with the current LTE processing process, and when the service cell is interacted with a coordinated cell to cause delay, the data transmission can also be performed according to the time requirement specified by a protocol.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of communication means, system and equipment that mixes in the automatic repeat requests.
Background technology
LTE (Long Term Evolution, Long Term Evolution) is 3G (3rd Generation, third generation digital communication) 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 sole criterion of this LTE wireless network evolution.Under the 20MHz spectral bandwidth, LTE can provide the peak rate of descending 100Mbit/s and up 50Mbit/s, improves the performance of Cell Edge User, and improves cell capacity and reduce system delay.Wherein, the technical characterictic of LTE comprises that high data rate, grouping transmit, hang down delay, wide area covering and backward compatible.
In prior LTE system, because HARQ (Hybrid Auto Repeat request, mix automatic repeat requests) existence of technology, the uplink moment and network side are fixed the time relationship between transmitting uplink data result's the feedback information, it is the time that the delivery time of UE upstream data has directly determined to receive this upstream data feedback information, this HARQ is a kind of link adaptation techniques, receiving terminal make a start data block of retransmits erroneous of request fast when exceeding self error correcting capability, automatically the variation of adaptive channel condition, and insensitive to measure error and time delay, improved reliability of data transmission.Wherein, this network side comprises ACK (Acknowledge Character, acknowledge character) and NACK (Negative Acknowledgment, the notice of makeing mistakes) to transmitting uplink data result's feedback information; The delivery time of this UE upstream data has also just determined UE these data to be carried out the moment of data re-transmitting simultaneously.As shown in Figure 1, in current agreement with FDD (Frequency Division Duplex, Frequency Division Duplexing (FDD)) when system is example, pairing sequential relationship when clearly the upstream data of regulation sends; This sequential relationship comprises PDCCH (Physical Downlink Shared Channel, Physical Downlink Shared Channel) and PUSCH (PhysicalUplink Shared Channel, Physical Uplink Shared Channel) sequential relationship between, and PUSCH and PHICH (Physical HARQ Indication Channel, the physical mixed automatic re-transmission indicating channel) sequential relationship between, wherein, the HARQ RTT of this UE upstream data (Round Trip Time, two-way time) is 8ms.
Above-mentioned sequential relationship is specially shown in Figure 1, may further comprise the steps:
Step 102, UE send upstream data by PUSCH to Serving cell, and to occur in subframe n-4 corresponding with PDCCH, and this PUSCH occurs in subframe n.The PUSCH that Serving cell was dispatched when wherein, this PUSCH was initial transmission.
Step 104, UE send upstream data to Serving cell again by PUSCH, and wherein, this re-transmission PUSCH occurs in subframe n+8.When UE receives the ACK feedback, confirm that transfer of data is correct, when UE receives the NACK feedback, confirm that transfer of data is incorrect, send upstream data to Serving cell n+8 subframe again by PUSCH.Certainly, according to the actual needs, also can not have this step, flow process to step 103 finishes.
At LTE-A (LTE-Advanced, the LTE system of upgrading) in, introduced the technology of multi-plot joint dispatching and transmission, this multi-plot joint dispatching and transmission technology are CoMP (Co-ordinated Multiple Point Transmission, multi-point joint transmission) technology, this CoMP technology is meant that UE can receive the downlink data (following is that example describes with descending CoMP all) that a plurality of sub-districts send simultaneously, perhaps, a plurality of sub-districts of network side can receive the upstream data (following is that example describes with up CoMP all) that UE sends simultaneously.Wherein, in up CoMP, the PDCCH channel that carries out the ascending resource mandate for UE only exists at Serving cell, and the upstream data that sends for UE, when Serving cell receives, cooperation district also will receive the upstream data of this UE; And the upstream data that upstream data that Serving cell will receive according to Serving cell and cooperation district receive, determine the reception condition of network side, promptly determine the upstream data that network side receives, and reception condition is fed back to UE by the PHICH channel of this Serving cell.Therefore and cooperation district may be positioned at different base stations with Serving cell, for cooperation district in the different base station and Serving cell, need be in the minizone carries out the communication of the two by the wire transmission of X2 mouth.
Wherein, the data handling procedure of up CoMP may further comprise the steps as shown in Figure 2:
Step 201, Serving cell send downlink data by PDCCH to UE.
Step 202, UE send upstream data by PUSCH to Serving cell, and send upstream data by PUSCH to cooperation district.
Step 203, cooperation district are to Serving cell report decoding situation.Wherein, when cooperation district and Serving cell during not in same base station, to Serving cell report decoding situation, this decoding situation is specially the reception condition of the upstream data of UE to cooperation district by the X2 mouth.
Step 204, Serving cell are fed back the upstream data from UE in conjunction with the decoding situation of two sub-districts.
Step 206, UE send upstream data to Serving cell again by PUSCH.Certainly, according to the actual needs, also can not have this step, flow process to step 205 finishes.
In realizing process of the present invention, the inventor finds to exist in the prior art following problem:
In up CoMP technology, because Serving cell and cooperation district can receive the upstream data from UE simultaneously, and when Serving cell and cooperation district do not belong to same base station, need between Serving cell and the cooperation district to finish communication process between the two by the X2 mouth, and the wire transmission of X2 mouth will be carried out the IP route by core net, at this moment, time delay for transfer of data can not be ignored fully, and in up CoMP technology, Serving cell need provide feedback information according to the two reception condition of Serving cell and cooperation district, the propagation delay time that is the X2 mouth can cause network side to surpass the time requirement of the HARQ RTT of current agreement defined to the time delay of UE feedback, thereby causes can not carrying out the transmission of data according to the time requirement of agreement defined among the HARQ.
Summary of the invention
The embodiment of the invention provides a kind of communication means, system and equipment that mixes in the automatic repeat requests, and with in up CoMP technology, the propagation delay time that adapts to the introducing of network side cell-to-cell information interaction provides the operating lag of feedback to network side.
In order to achieve the above object, the embodiment of the invention has proposed a kind of communication means that mixes in the automatic repeat requests, may further comprise the steps:
The network equipment at Serving cell place obtains the transmission intercal under the CoMP;
The network equipment at described Serving cell place sends the CoMP configuration information to UE, has carried the transmission intercal information under the described CoMP in the described CoMP configuration information, obtains transmission intercal under the described CoMP by described UE according to described CoMP configuration information;
The network equipment at described Serving cell place carries out data interaction according to transmission intercal under the described CoMP and described UE.
Preferably, the transmission intercal that obtains under the CoMP of the network equipment at described Serving cell place comprises:
The network equipment at described Serving cell place obtains transmission intercal under the CoMP according to the transmission intercal under the LTE system.
Preferably, the network equipment at described Serving cell place specifically comprises according to the transmission intercal that the transmission intercal under the LTE system obtains under the CoMP:
Transmission intercal under the described CoMP of network equipment at described Serving cell place is set to N times of the transmission intercal under the LTE system, and wherein, N is positive integer value.
Preferably, the network equipment at the described Serving cell place mode of obtaining the N value comprises:
Obtain the N value by the mode of default value; Or
The mode of the time delay by determining minizone information transmission is obtained the N value.
Preferably, the mode of described time delay by determining minizone information transmission is obtained the N value and is specifically comprised:
The network equipment at described Serving cell place obtains the time interval k1 that upstream data is carried out downstream feedback;
The network equipment at described Serving cell place obtains the N value according to formula N=ceil{ (k1+k2)/HARQ RTT}, wherein, described HARQ RTT is the transmission intercal under the LTE system, described k2 is the time delay between the uplink of dispatching of dispatching command under the LTE system and this dispatching command, and ceil{} represents the number that rounds up.
Preferably, when described Serving cell and cooperation district were positioned at same base station, the described time interval k1 that upstream data is carried out downstream feedback specifically was included in the information of carrying out in the base station employed time delay when transmitting; Or
When described Serving cell and cooperation district were positioned at different base stations, the described time interval k1 that upstream data is carried out downstream feedback specifically comprised between Serving cell and the cooperation district employed time delay when carrying out wire transmission by the X2 mouth.
Preferably, the network equipment at described Serving cell place carries out data interaction according to the transmission intercal under the described CoMP and described UE and specifically comprises:
Described UE sends upstream data by PUSCH to the network equipment at described Serving cell place and the network equipment at cooperation district place;
The network equipment at described Serving cell place is determined to described UE feedack in conjunction with the reception condition and the reception condition of self of the network equipment at described cooperation district place;
The network equipment at described Serving cell place is according to described definite time to described UE feedback information of time interval k1 of upstream data being carried out downstream feedback;
The network equipment at described Serving cell place sends feedack according to the time of described feedback information and by PHICH to described UE.
Preferably, the network equipment at described Serving cell place obtains after the N value according to formula N=ceil{ (k1+k2)/HARQ RTT}, also comprises:
The network equipment at described Serving cell place obtains the k3 value according to formula k3=N*HARQ RTT-k1-k2;
The network equipment at described Serving cell place according to time of described feedback information and by PHICH after described UE sends feedack, also comprise:
The network equipment at described Serving cell place sends control information to described UE according to the k3 value and by PDCCH, and described k3 value is specially by PHICH to described UE transmission feedack and by the time interval of PDCCH between described UE sends control information.
Preferably, the network equipment at described Serving cell place sends the CoMP configuration information to UE and specifically comprises:
The network equipment at described Serving cell place sends the CoMP configuration information by the RRC signaling to described UE, has carried N value and k1 value in the described CoMP configuration information.
Preferably, described mode by default value is obtained the N value and is specially the size that the N value is set at the network equipment at described Serving cell place.
Preferably, the network equipment at described Serving cell place sends the CoMP configuration information to UE and specifically comprises:
The network equipment at described Serving cell place sends the CoMP configuration information by the RRC signaling to described UE, has carried the N value in the described CoMP configuration information, determines transmission intercal by described UE according to described N value.
Preferably, the network equipment at described Serving cell place carries out data interaction according to the transmission intercal under the described CoMP and described UE and specifically comprises:
Described UE sends upstream data by PUSCH to the network equipment at described Serving cell place and the network equipment at cooperation district place;
The network equipment at described Serving cell place is determined to described UE feedack in conjunction with the reception condition and the reception condition of self of the network equipment at described cooperation district place;
The network equipment at described Serving cell place is according to definite time to described UE feedback information of described N value;
The network equipment at described Serving cell place sends feedack by PHICH to described UE according to the time of described feedback information, and sends control information to described UE by PDCCH.
The present invention proposes a kind of communication system of mixing in the automatic repeat requests, comprise the network equipment and the UE at Serving cell place, wherein:
The network equipment at described Serving cell place is used to obtain the transmission intercal under the CoMP; Send the CoMP configuration information to described UE, carried the transmission intercal information under the described CoMP in the described CoMP configuration information; And carry out data interaction according to transmission intercal under the described CoMP and described UE;
Described UE, be used to receive CoMP configuration information from the network equipment at described Serving cell place, according to the transmission intercal under the CoMP of the transmission intercal information acquisition correspondence under the CoMP that carries in the described CoMP configuration information, and carry out data interaction by the network equipment at transmission intercal under the described CoMP and described Serving cell place.
Preferably, the network equipment at described Serving cell place also is used for: the transmission intercal under the described CoMP is set to N times of the transmission intercal under the LTE system, and wherein, N is positive integer value; The mode of obtaining the N value comprises: obtain the N value by the mode of default value; Or the mode of the time delay by determining minizone information transmission is obtained the N value.
Preferably, the network equipment at described Serving cell place also is used for: obtain the time interval k1 that upstream data is carried out downstream feedback; And obtain the N value according to formula N=ceil{ (k1+k2)/HARQ RTT}, wherein, described HARQ RTT is the transmission intercal under the LTE system, and described k2 is the time delay between the uplink of dispatching of dispatching command under the LTE system and this dispatching command, and ceil{} represents the number that rounds up.
The present invention proposes a kind of communication equipment that mixes in the automatic repeat requests, comprising:
Acquisition module is used to obtain the transmission intercal under the CoMP;
Sending module is used for sending the CoMP configuration information to UE, has carried the information of the transmission intercal under the CoMP that described acquisition module obtains in the described CoMP configuration information, obtains transmission intercal under the described CoMP by described UE according to described CoMP configuration information;
Transport module, transmission intercal and described UE under the CoMP that is used for obtaining according to described acquisition module carry out data interaction.
Preferably, described acquisition module specifically is used for: obtain transmission intercal under the CoMP according to the transmission intercal under the LTE system, the N that the transmission intercal under the described CoMP is set to the transmission intercal under the LTE system doubly, wherein, N is positive integer value.
Preferably, the described acquisition module mode of obtaining the N value comprises: obtain the N value by the mode of default value; Or the mode of the time delay by determining minizone information transmission is obtained the N value.
Preferably, described acquisition module also is used for:
Obtain the time interval k1 that upstream data is carried out downstream feedback; And obtain the N value according to formula N=ceil{ (k1+k2)/HARQ RTT}, wherein, described HARQ RTT is the transmission intercal under the LTE system, and described k2 is the time delay between the uplink of dispatching of dispatching command under the LTE system and this dispatching command, and ceil{} represents the number that rounds up.
Preferably, described acquisition module also is used for:
When described Serving cell and cooperation district were positioned at same base station, employed time delay was a described part of upstream data being carried out the time interval k1 of downstream feedback when described acquisition module obtained the information of carrying out in the base station and transmits; Or
When described Serving cell and cooperation district were positioned at different base stations, employed time delay was a described part of upstream data being carried out the time interval k1 of downstream feedback when described acquisition module obtained between Serving cell and the cooperation district and to carry out wire transmission by the X2 mouth.
Preferably, when the mode of the time delay by determining minizone information transmission was obtained the N value, described transport module comprised:
Receive submodule, be used for by the upstream data of PUSCH reception from described UE;
First determines submodule, is used for determining to described UE feedack in conjunction with the reception condition of the network equipment at described cooperation district place and the reception condition of described reception submodule;
Second determines submodule, is used for definite time to described UE feedback information according to the time interval k1 that upstream data is carried out downstream feedback;
Send submodule, be used for determining the time of the feedback information that submodule is determined and sending feedack to described UE by PHICH according to described second.
Preferably, described acquisition module also is used for:
Obtain the k3 value according to formula k3=N*HARQ RTT-k1-k2;
Described transmission submodule also is used for:
Send control information to described UE according to the k3 value and by PDCCH, described k3 value is specially by PHICH to described UE transmission feedack and by the time interval of PDCCH between described UE sends control information.
Preferably, described sending module specifically is used for:
Send the CoMP configuration information by the RRC signaling to described UE, carried N value and k1 value in the described CoMP configuration information.
Preferably, described acquisition module also is used for: the size that the N value is set;
Described sending module also is used for: send the CoMP configuration information by the RRC signaling to described UE, carried the N value in the described CoMP configuration information, determine transmission intercal by described UE according to described N value.
Preferably, when obtaining the N value by the mode of default value, the reception submodule under the described transport module is used for by the upstream data of PUSCH reception from described UE;
First determines submodule, is used for determining to described UE feedack in conjunction with the reception condition of the network equipment at described cooperation district place and the reception condition of described reception submodule;
Second determines submodule, also is used for according to definite time to described UE feedback information of described N value;
Send submodule, also be used for sending feedack by PHICH to described UE, and send control information to described UE by PDCCH according to the time of the definite feedback information of described first definite submodule.
Compared with prior art, the present invention has the following advantages: by the transmission intercal of existing LTE system is expanded, transmission intercal under the up CoMP technology is expanded to LTE system transmissions N at interval doubly, make under the situation of the current LTE processing procedure of compatibility, can also satisfy the transmission intercal of data under the CoMP technology, time-delay when Serving cell and cooperation district cause having produced alternately also can be carried out transfer of data according to the time requirement of agreement defined.
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 data transmission procedure schematic diagram under a kind of LTE system that proposes in the prior art;
Fig. 2 is the data transmission procedure schematic diagram under a kind of up CoMP technology that proposes in the prior art;
A kind of communication means flow chart that mixes in the automatic repeat requests that Fig. 3 proposes for the embodiment of the invention one;
A kind of communication means flow chart that mixes in the automatic repeat requests that Fig. 4 proposes for the embodiment of the invention two;
A kind of communication means flow chart that mixes in the automatic repeat requests that Fig. 5 proposes for the embodiment of the invention three;
A kind of communication means flow chart that mixes in the automatic repeat requests that Fig. 6 proposes for the embodiment of the invention four;
A kind of communication means flow chart that mixes in the automatic repeat requests that Fig. 7 proposes for the embodiment of the invention five;
A kind of structure chart that mixes the communication equipment in the automatic repeat requests that Fig. 8 proposes for the embodiment of the invention six.
Embodiment
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.
In the embodiment of the invention, under the CoMP technology, by on the HARQRTT sequential relationship basis under the current LTE of the compatibility system, the HARQ RTT under the up CoMP technology being expanded, be about to N that HARQ RTT under the CoMP technology expands to the HARQ RTT under the current LTE system doubly, wherein, N can be the predefined value of agreement, the value that the time-delay calculation that the minizone transmission information in the CoMP set that also can be based on is introduced provides.Thereby make under the situation of the current LTE processing procedure of compatibility, can also satisfy the transmission intercal of data under the CoMP technology, time-delay when Serving cell and cooperation district cause having produced alternately also can be carried out transfer of data according to the time requirement of agreement defined.
A kind of communication means that mixes in the automatic repeat requests that the embodiment of the invention one proposes as shown in Figure 3, may further comprise the steps:
Step 301, the network equipment at Serving cell place obtains the transmission intercal under the CoMP.
Wherein, the transmission intercal that obtains under the CoMP of the network equipment at described Serving cell place comprises: the network equipment at described Serving cell place obtains transmission intercal under the CoMP according to the transmission intercal under the LTE system.Be specially: the transmission intercal under the described CoMP of network equipment at described Serving cell place is set to N times of the transmission intercal under the LTE system, and wherein, N is positive integer value.
Need to prove that the mode that the network equipment at described Serving cell place obtains the N value comprises: obtain the N value by the mode of default value; Or the mode of the time delay by determining minizone information transmission is obtained the N value.
The mode of described time delay by determining minizone information transmission is obtained the N value and is specifically comprised:
The network equipment at described Serving cell place obtains the time interval k1 that upstream data is carried out downstream feedback;
The network equipment at described Serving cell place obtains the N value according to formula N=ceil{ (k1+k2)/HARQ RTT}, wherein, described HARQ RTT is the transmission intercal under the LTE system, described k2 is the time delay between the uplink of dispatching of dispatching command under the LTE system and this dispatching command, and ceil{} represents the number that rounds up.
When described Serving cell and cooperation district were positioned at same base station, the described time interval k1 that upstream data is carried out downstream feedback specifically was included in the information of carrying out in the base station employed time delay when transmitting; Or when described Serving cell and cooperation district were positioned at different base stations, the described time interval k1 that upstream data is carried out downstream feedback specifically comprised between Serving cell and the cooperation district employed time delay when carrying out wire transmission by the X2 mouth.
Step 302, the network equipment at described Serving cell place sends the CoMP configuration information to UE, carried the transmission intercal information under the described CoMP in the described CoMP configuration information, obtained transmission intercal under the described CoMP according to described CoMP configuration information by described UE.
Wherein, the network equipment at described Serving cell place sends the CoMP configuration information to UE and specifically comprises: the network equipment at described Serving cell place sends the CoMP configuration information by the RRC signaling to described UE, has carried N value and k1 value in the described CoMP configuration information.
Step 303, the network equipment at described Serving cell place carries out data interaction according to transmission intercal under the described CoMP and described UE.
The network equipment at described Serving cell place carries out data interaction according to the transmission intercal under the described CoMP and described UE and specifically comprises: described UE sends upstream data by PUSCH to the network equipment at described Serving cell place and the network equipment at cooperation district place; The network equipment at described Serving cell place is determined to described UE feedack in conjunction with the reception condition and the reception condition of self of the network equipment at described cooperation district place; The network equipment at described Serving cell place is according to described definite time to described UE feedback information of time interval k1 of upstream data being carried out downstream feedback; The network equipment at described Serving cell place sends feedack according to the time of described feedback information and by PHICH to described UE.
The network equipment at described Serving cell place obtains after the N value according to formula N=ceil{ (k1+k2)/HARQ RTT}, also comprises: the network equipment at described Serving cell place obtains the k3 value according to formula k3=N*HARQ RTT-k1-k2;
The network equipment at described Serving cell place according to time of described feedback information and by PHICH after described UE sends feedack, also comprise: the network equipment at described Serving cell place sends control information to described UE according to the k3 value and by PDCCH, and described k3 value is specially by PHICH to described UE transmission feedack and by the time interval of PDCCH between described UE sends control information.
Need to prove that described mode by default value is obtained the N value and is specially the size that the N value is set at the network equipment at described Serving cell place.
In this case, the network equipment at described Serving cell place sends the CoMP configuration information to UE and also comprises: the network equipment at described Serving cell place sends the CoMP configuration information by the RRC signaling to described UE, carried the N value in the described CoMP configuration information, determined transmission intercal according to described N value by described UE.
The network equipment at described Serving cell place carries out data interaction according to the transmission intercal under the described CoMP and described UE and specifically comprises: described UE sends upstream data by PUSCH to the network equipment at described Serving cell place and the network equipment at cooperation district place; The network equipment at described Serving cell place is determined to described UE feedack in conjunction with the reception condition and the reception condition of self of the network equipment at described cooperation district place; The network equipment at described Serving cell place is according to definite time to described UE feedback information of described N value; The network equipment at described Serving cell place sends feedack by PHICH to described UE according to the time of described feedback information, and sends control information to described UE by PDCCH.
As seen, the method that the application of the invention provides, by the transmission intercal of existing LTE system is expanded, transmission intercal under the up CoMP technology is expanded to LTE system transmissions N at interval doubly, make under the situation of the current LTE processing procedure of compatibility, can also satisfy the transmission intercal of data under the CoMP technology, time-delay when Serving cell and cooperation district cause having produced alternately also can be carried out transfer of data according to the time requirement of agreement defined.
A kind of communication means that mixes in the automatic repeat requests that the embodiment of the invention two proposes, this method is applicable to when HARQ carries out transfer of data, introduce the process of up CoMP, wherein, this up CoMP is that a plurality of sub-districts of network side can receive the upstream data that UE sends simultaneously, be that the PDCCH channel that UE carries out the ascending resource mandate only exists at Serving cell promptly at network equipment, and the upstream data that sends for UE, when Serving cell receives, cooperation district also will receive the upstream data of this UE.In the embodiment of the invention; this network equipment includes but not limited to RNC (Radio Network Controller; radio network controller), eNB (enhanced Node B; the enhancement mode Node B), base station etc.; need to prove that this network equipment is not limited to the said equipment, all are positioned at the equipment of network side all within protection range of the present invention; as shown in Figure 4, the communication means in the above-mentioned automatic repeat requests of mixing may further comprise the steps:
Step 401, when initially setting up the CoMP set of cells, measure the propagation delay time of CoMP minizone, and in the network equipment at Serving cell place, store the time delay information between this Serving cell and the cooperation district, promptly store the time interval of upstream data being carried out downstream feedback.Wherein, this Serving cell and cooperation district can be positioned at same base station, also can be positioned at different base stations, are that example describes to be positioned at same base station in the present embodiment.Be that time delay between Serving cell and the cooperation district is that example describes with the propagation delay time of this CoMP minizone in the present embodiment, the entity of measuring this CoMP inter-cell transmissions time delay can be the network equipment at Serving cell place, also can be the network equipment at cooperation district place.For example, when the network equipment at Serving cell place is measured this, delay time, need this delayed data is sent to the network equipment at cooperation district place, and in the network equipment at this Serving cell place, store this time delay information; When the network equipment at cooperation district place is measured this, delay time, need this delayed data is sent to the network equipment at Serving cell place, store this time delay information by the network equipment at this Serving cell place.
In the present embodiment, time delay between this Serving cell and the cooperation district is for to carry out the shared time delay of downstream feedback to upstream data, represent with k1, concrete, this time interval that upstream data is carried out downstream feedback, to be UE sent upstream data and Serving cell return the time interval from feedback information to UE by PUSCH to Serving cell and cooperation district; This k1 is introduce CoMP in HARQ after, and Serving cell and cooperation district data are carried out Combined Treatment shared time delay when determining feedback result.Wherein, k1 is not less than the feedback delay of LTE system (owing to do not introduce the CoMP technology in the LTE system, shared time delay in the time of promptly can not existing Serving cell and cooperation district to carry out Combined Treatment), for the FDD among the HARQ, the feedback delay of having stipulated the LTE system in agreement is 4ms, i.e. k1＞=4.
Step 402, the network equipment at Serving cell place is determined the N value according to time delay.Wherein, under up CoMP technology, for the HARQ RTT sequential relationship of the current LTE of compatibility and the HARQ RTT ' sequential relationship of LTE-A, by on the basis of HARQ RTT sequential relationship, HARQ RTT ' sequential relationship is expanded, with the temporal extension of this HARQ RTT ' be the HARQ RTT time N doubly, this N is positive integer value.Wherein, this N value can be a predefined value in the agreement; The value that the time-delay calculation that the minizone transmission information in the CoMP set that also can be based on is introduced provides is promptly determined the N value according to above-mentioned time delay.
Need to prove that this HARQ RTT sequential relationship is the sequential relationship of defined in the existing protocol, for example, for FDD, time with this HARQ RTT is that 8ms is that example describes, and the time of this HARQRTT ' is the time of N HARQ RTT doubly, and promptly the time of HARQ RTT ' is 8Nms.With flow chart shown in Figure 4 is that example describes, and HARQ RTT ' is the HARQRTT under the up CoMP, and HARQ RTT is the HARQ RTT of LTE system.K2 is the time delay between the transmission of the pairing dispatching uplink of dispatching command and this dispatching command, and this time delay is identical with time delay in the LTE system, and for FDD, the k2 value of stipulating in agreement is 4.In the present embodiment, with the time-delay calculation N value according to the minizone transmission information introducing in the CoMP set is that example describes, this N=ceil{ (k1+k2)/HARQ RTT}, this ceil{} represents to round up, and for example, works as k1=6, during k2=4, N=ceil{ (6+4)/8} then, N=2, i.e. the HARQ RTT ' of up CoMP=2*HARQ RTT.Wherein, k3=HARQ RTT '-k1-k2.
In summary it can be seen, for FDD, stipulated that in agreement the k2 value is 4ms, HARQ RTT value is 8ms, after having determined upstream data to be carried out the time interval k1 value of downstream feedback in the step 401, can calculate the N value according to formula N=ceil{ (k1+k2)/HARQ RTT}, obtain HARQ RTT ' value according to this N value, and according to formula k3=HARQ RTT '-k1-k2.Calculate the k3 value.In this step, the network equipment at Serving cell place need all store all numerical value after obtaining corresponding k1 value, k2 value, k3 value, N value, HARQ RTT ' value.
Step 403, Serving cell sends control information to UE by PDCCH.In actual applications, this control information is that the network equipment at Serving cell place sends to UE.Wherein, carried control informations such as requiring the UE transmission employed time of upstream data in this control information.In the following description, for convenience of description, the network equipment at Serving cell place all is that example is described with the Serving cell, and the network equipment at cooperation district place all is that example is described with the cooperation district.
Step 404, UE sends upstream data by PUSCH to Serving cell and cooperation district.Owing to introduced up CoMP technology in the present embodiment, a plurality of sub-districts of network side can receive the upstream data that UE sends simultaneously, and promptly Serving cell and cooperation district all can receive the upstream data from this UE.
Need to prove, because present embodiment is the communication process that is applied on the HARQ technical foundation, be that UE need be according to definite time to Serving cell and cooperation district transmission upstream data of the time that Serving cell sends control information, sending control information to UE at subframe n-4 with Serving cell is that example describes, and then UE occurs in subframe n by PUSCH to Serving cell and cooperation district transmission upstream data.In the present embodiment, UE can send upstream data to a plurality of cooperation districts simultaneously, and for convenience of description, being one with the cooperation district that receives this upstream data is that example describes.
Step 405, cooperation district is to Serving cell report decoding situation.Wherein, UE by PUSCH when Serving cell and cooperation district send upstream data, according to the situation of actual reception, the Serving cell and the cooperation district that receive this upstream data can be positioned at same base station, also can be positioned at different base stations.Be that example describes to be positioned at same base station in the present embodiment.
Cooperation district is after the upstream data that receives from UE, by using FEC (Forward Error Correction, forward error correction) determines whether this upstream data makes a mistake, if it is wrong in the error correction scope of FEC, then FEC carries out error correction, if the wrong error correction scope that has exceeded FEC, then FEC will request retransmission.
Wherein, cooperation district is the reception condition of upstream data to the decoding situation of Serving cell report, promptly whether has the data that make a mistake in the upstream data.
Step 406, Serving cell are determined the upstream data of UE is carried out feedack in conjunction with the decoding situation of two sub-districts.
Wherein, Serving cell determines by using FEC whether this upstream data makes a mistake after the upstream data that receives from UE, if it is wrong in the error correction scope of FEC, then FEC carries out error correction, if the wrong error correction scope that has exceeded FEC, then FEC will request retransmission.In the present embodiment, Serving cell also will receive the decoding situation to this UE upstream data from cooperation district, Serving cell need be determined the upstream data of UE is carried out feedack in conjunction with the decoding situation of two sub-districts (this Serving cell and this cooperation district), for example, the information that in the decoding situation of Serving cell and/or cooperation district acquisition, exists upstream data to make a mistake, then this Serving cell determines that upstream data makes a mistake, need carry out the NACK feedback to UE, in this NACK feedback message, carried the information of the notice of makeing mistakes, the information that in the decoding situation of Serving cell and cooperation district acquisition, all makes a mistake less than existence, then this Serving cell determines that upstream data does not make a mistake, need carry out ACK feedback to UE, in this ACK feedback message, carry the information of do not have to make mistakes (acknowledge character).
In this step, Serving cell also needs to determine to carry out the employed time of reciprocal process between this Serving cell and the cooperation district, for example, cooperation district is to the Serving cell report decoding employed time of situation in the determining step 405, because this Serving cell and cooperation district are positioned at same base station in the present embodiment, this time may be very little, but do not get rid of the bigger possibility of this time ratio yet, Serving cell needs to determine according to the actual needs that Serving cell and cooperation district carry out the shared time of reciprocal process (certainly, when if the shared time of this reciprocal process can ignore, also can not carry out this operating process, this situation repeats no more).
Need to prove, carry out the employed time of reciprocal process between above-mentioned Serving cell and the cooperation district for upstream data is carried out the shared time delay of downstream feedback, this time delay has stored in this Serving cell in step 401, be directly to use this time delay information in this step, for convenience of description, be that 6ms (k1 value) is that example describes with this time delay in the present embodiment.
Step 407, Serving cell sends ACK feedback message or NACK feedback message by PHICH to UE.Wherein, Serving cell need send ACK feedback message or NACK feedback message to UE according to this k1 value, for example, when this k1 value is 6ms, in step 404 UE by PUSCH after Serving cell sends upstream data during through 6ms (UE by PUSCH when Serving cell and cooperation district transmission upstream data occur in subframe n, this operation occurs in subframe n+6), Serving cell is to UE feeding back ACK message or NACK message, wherein, when the information that exists upstream data to make a mistake in the decoding situation that Serving cell and/or cooperation district obtain, need send the NACK feedback message to UE, in this NACK feedback message, carry the information of the notice of makeing mistakes; When in the decoding situation that Serving cell and cooperation district obtain all not existence make a mistake information the time, need send the ACK feedback message to UE, having carried in this ACK feedback message does not have the information of makeing mistakes.
Step 408, Serving cell sends control information to UE by PDCCH.Wherein, if in the step 407 to UE send be the ACK feedback message time, can require UE to send new upstream data by this control information to Serving cell and cooperation district; If in the step 407 to UE send be the NACK feedback message time, the upstream data that can require UE in Serving cell and cooperation district retransmissions steps 404, to send by this control information to Serving cell and cooperation district.
Need to prove, sending to UE between time of ACK feedback message or NACK feedback message by PHICH in time that UE sends control information and step 407 by this PDCCH has necessary relation, and the operating time of carrying out in the step 408 need be definite according to the operating time of execution in k3 value and the step 407.
Wherein, this k3 value is the numerical value of storage in the step 402, is that 6ms, k2 value are that 4ms, HARQ RTT value are 8ms when being example with the k1 value, and as can be known, it is 16ms that N=2, HARQ RTT ' are worth, and the k3 value is 16-4-6, and promptly the k3 value is 6ms.As can be seen, the k3 value of storage is 6ms in the step 402.
In this step, Serving cell by PHICH after UE sends ACK feedback message or NACK feedback message, through (being Serving cell by PHICH when UE sends ACK feedback message or NACK feedback message and occurs in subframe n+6 after the 6ms, this operation occurs in subframe n+12), carry out the operation of this step.
What need further instruction is, step 407 can also be sent the process of feedback message with carrying out to the process that UE sends control information by PDCCH in the step 408 by PHICH to UE in the embodiment of the invention, at this moment, do not need in the above-mentioned steps 401 to determine to determine according to time delay in time delay and the step 402 operating process of N value, only need be used in and stipulate in the agreement that the N value gets final product, for example, the N value of stipulating in agreement is 2, because HARQ RTT value is 8ms, then HARQ RTT ' value is 16ms, and the 4ms of k2 value for stipulating in the agreement, in this case, do not need the above-mentioned k1 value and the related data of k3 value, UE begins to Serving cell and cooperation district transmission upstream data from step 404, (HARQ RTT '-k2), Serving cell sends control information to UE by PDCCH, and sends ACK feedback message or NACK feedback message by PHICH to UE through 12ms.
Step 409, UE sends upstream data by PUSCH to Serving cell and cooperation district, and wherein, UE is according to the transmitting time of determining this upstream data from the control information of Serving cell, and according to the new upstream data of the definite transmission of this control information, or the upstream data in the retransmissions steps 404.Wherein, the transmitting time of this upstream data is determined by k2 value (4ms), promptly Serving cell by PDCCH after UE sends control information when the 4ms (when step 408 occurs in subframe n+12, this operation occurs in subframe n+16), UE sends upstream data by PUSCH to Serving cell and cooperation district.
As seen, the method that the application of the invention provides, by the transmission intercal of existing LTE system is expanded, transmission intercal under the up CoMP technology is expanded to LTE system transmissions N at interval doubly, make under the situation of the current LTE processing procedure of compatibility, can also satisfy the transmission intercal of data under the CoMP technology, time-delay when Serving cell and cooperation district cause having produced alternately also can be carried out transfer of data according to the time requirement of agreement defined.
Wherein, the inventive method can be adjusted each sequence of steps according to actual needs.
A kind of communication means that mixes in the automatic repeat requests that the embodiment of the invention three proposes, this method is on the basis of the embodiment of the invention two, Serving cell and cooperation district are positioned at the situation of different base station, as shown in Figure 5, may further comprise the steps:
Step 501 when initially setting up the CoMP set of cells, is measured the propagation delay time of CoMP minizone, and stores time delay information between this Serving cell and the cooperation district at Serving cell.Wherein, because Serving cell is positioned at different base stations with cooperation district, need between this Serving cell and the cooperation district by using the X2 mouth to carry out the mutual of data, be that Serving cell and cooperation district carry out data interaction by the wire transmission of X2 mouth, wherein, the time delay that this Serving cell and cooperation district carry out data interaction by the X2 mouth is represented with k1 for upstream data is carried out the shared time delay of downstream feedback.In this step, need measure the value of this k1, and in Serving cell, store the value of this k1.
Step 502, Serving cell is determined the N value according to this time delay k1 value, calculates and store k1 value, k2 value, k3 value, N value, HARQ RTT ' value etc.Wherein, under up CoMP technology, with the temporal extension of this HARQRTT ' be the HARQ RTT time N doubly, this HARQ RTT sequential relationship is a defined in the existing protocol, for FDD, the time of this HARQ RTT is 8ms, and the time of this HARQ RTT ' is the time of N HARQ RTT doubly, for FDD, the k2 value is 4.In the present embodiment, this N=ceil{ (k1+k2)/HARQ RTT}, this ceil{} represents to round up, k3=HARQ RTT '-k1-k2.
Step 503, Serving cell sends control information to UE by PDCCH.
Step 504, UE sends upstream data by PUSCH to Serving cell and cooperation district.
Step 505, cooperation district is reported the decoding situation by the X2 mouth to Serving cell.Wherein, because cooperation district is positioned at different base stations with Serving cell, promptly cooperation district need be by the X2 mouth to Serving cell report decoding situation.
Step 506, Serving cell are determined the upstream data of UE is carried out feedack in conjunction with the decoding situation of two sub-districts.
Step 508, Serving cell sends control information to UE by PDCCH.Wherein, Serving cell need send control information to UE according to the k3 value of step 502 storage.
Step 509, UE sends upstream data by PUSCH to Serving cell and cooperation district.Wherein, UE need send upstream data to Serving cell and cooperation district according to the k2 value.
As seen, the method that the application of the invention provides, by the transmission intercal of existing LTE system is expanded, transmission intercal under the up CoMP technology is expanded to LTE system transmissions N at interval doubly, make under the situation of the current LTE processing procedure of compatibility, can also satisfy the transmission intercal of data under the CoMP technology, time-delay when Serving cell and cooperation district cause having produced alternately also can be carried out transfer of data according to the time requirement of agreement defined.
Wherein, the inventive method can be adjusted each sequence of steps according to actual needs.
A kind of communication means that mixes in the automatic repeat requests that the embodiment of the invention four proposes, this method is on the basis of the embodiment of the invention two, compatible existing LTE system and introduced the LTE-A system of up CoMP technology, wherein, obscure for fear of between process, UE can have HARQ RTT (LTE system, do not introduce up CoMP technology) retransmit interval and HARQ RTT ' (LTE-A system, introduced up CoMP technology) two kinds of retransmit intervals, by RRC (Radio Resource Control, radio resource control) conversion between the signaling UE retransmit interval value, the transfer of data of synchronization can only adopt a kind of retransmit interval.Being positioned at different base station with Serving cell and cooperation district in the present embodiment is that example describes, and as shown in Figure 6, may further comprise the steps:
Step 601 when initially setting up the CoMP set of cells, is measured the propagation delay time of CoMP minizone X2, and stores time delay information between this Serving cell and the cooperation district at Serving cell.Wherein, the time delay that this Serving cell and cooperation district carry out data interaction by the X2 mouth is represented with k1 for upstream data is carried out the shared time delay of downstream feedback.
Step 602, Serving cell is determined the N value according to this time delay k1 value, calculates and store k1 value, k2 value, k3 value, N value, HARQ RTT ' value etc.Wherein, under up CoMP technology, with the temporal extension of this HARQRTT ' be the HARQ RTT time N doubly, this HARQ RTT sequential relationship is a defined in the existing protocol, for FDD, the time of this HARQ RTT is 8ms, and the time of this HARQ RTT ' is the time of N HARQ RTT doubly, for FDD, the k2 value is 4.In the present embodiment, this N=ceil{ (k1+k2)/HARQ RTT}, this ceil{} represents to round up, k3=HARQ RTT '-k1-k2.
Step 604, UE sends upstream data by PUSCH to Serving cell, the PUSCH that Serving cell was dispatched when this PUSCH was initial transmission.In the initial transmission process, this UE does not receive the relevant information that system has introduced up CoMP technology, promptly needs to adopt the transmission course of existing LTE system to transmit, at this moment, UE only need send upstream data to Serving cell by PUSCH, can't send upstream data to cooperation district.
Step 606, UE sends upstream data to Serving cell again by PUSCH.Wherein,, carry out above-mentioned flow process with continuing if when not introducing up CoMP technology in the system, if introduce up CoMP technology in the system, the flow process below carrying out.
Step 607, Serving cell carries out the CoMP configuration by using the RRC signaling, and this RRC signaling is sent to UE, makes UE know retransmit interval.Wherein, comprise the CoMP configuration information that N value, k1 value and k3 value etc. are relevant in this usefulness RRC signaling, make UE determine retransmit interval according to this N value, for example, when the N value was 2, UE determined that retransmit interval is 2HARQ RTT, for FDD, UE determines that retransmit interval is 16ms.
Need to prove that UE is after knowing retransmit interval, determining needs to use new retransmit interval to carry out the transmission course of data.
Step 609, UE sends upstream data by PUSCH to Serving cell and cooperation district.
Step 610, cooperation district is reported the decoding situation by the X2 mouth to Serving cell.
Step 611, Serving cell are determined the upstream data of UE is carried out feedack in conjunction with the decoding situation of two sub-districts.
Step 614, UE sends upstream data by PUSCH to Serving cell and cooperation district.Wherein, UE need send upstream data to Serving cell and cooperation district according to the k2 value.
As seen, the method that the application of the invention provides, by the transmission intercal of existing LTE system is expanded, transmission intercal under the up CoMP technology is expanded to LTE system transmissions N at interval doubly, make under the situation of the current LTE processing procedure of compatibility, can also satisfy the transmission intercal of data under the CoMP technology, time-delay when Serving cell and cooperation district cause having produced alternately also can be carried out transfer of data according to the time requirement of agreement defined.
Wherein, the inventive method can be adjusted each sequence of steps according to actual needs.
A kind of communication means that mixes in the automatic repeat requests that the embodiment of the invention five proposes, this method is on the basis of the embodiment of the invention four, compatible existing LTE system and introduced the LTE-A system of up CoMP technology, being positioned at different base station with Serving cell and cooperation district in the present embodiment is that example describes, as shown in Figure 7, may further comprise the steps:
Step 701, Serving cell sends control information to UE by PDCCH.
Step 702, UE sends upstream data by PUSCH to Serving cell, the PUSCH that Serving cell was dispatched when this PUSCH was initial transmission.In the initial transmission process, this UE does not receive the relevant information that system has introduced up CoMP technology, promptly needs to adopt the transmission course of existing LTE system to transmit, at this moment, UE only need send upstream data to Serving cell by PUSCH, can't send upstream data to cooperation district.
Step 703, Serving cell carries out ACK feedback or NACK feedback by PHICH and PDCCH to the upstream data of UE, and requires UE to retransmit upstream data or send new upstream data.
Step 704, UE sends upstream data to Serving cell again by PUSCH.Wherein,, carry out above-mentioned flow process with continuing if when not introducing up CoMP technology in the system, if introduce up CoMP technology in the system, the flow process below carrying out.
Step 705, Serving cell is by the relevant information of configuration order collocating uplink CoMP, promptly obtain N value (this N value in agreement, stipulate numerical value) among the up CoMP by configuration order, and k2 value and HARQ RTT value in agreement, have also been stipulated, according to HARQ RTT '=N HARQ RTT doubly, obtain corresponding HARQ RTT ' value, thereby determine the relevant information of up CoMP.
Step 706, Serving cell sends to UE by configuration order with the relevant information of up CoMP, makes UE know retransmit interval.Wherein, comprise the N value in the relevant information of this up CoMP, make UE determine retransmit interval according to this N value, for example, when the N value was 2, UE determined that retransmit interval is 2HARQ RTT, and for FDD, UE determines that retransmit interval is 16ms.Need to prove that UE is after knowing retransmit interval, determining needs to use new retransmit interval to carry out the transmission course of data.
Step 707, Serving cell sends control information to UE by PDCCH.
Step 708, UE sends upstream data by PUSCH to Serving cell and cooperation district.
Step 709, cooperation district is reported the decoding situation by the X2 mouth to Serving cell.
Step 710, Serving cell are determined the upstream data of UE is carried out feedack in conjunction with the decoding situation of two sub-districts.
Step 711, Serving cell sends ACK feedback message or NACK feedback message by PHICH to UE, and sends control information to UE by PDCCH.Wherein, Serving cell need send ACK feedback message or NACK feedback message to UE according to the N value of obtaining in the step 705, and sends control information to UE.For example, when getting access to the N value when being 2, HARQ RTT '=2*8=16ms then, and the numerical value of k2 value for stipulating in the agreement, at this moment, Serving cell sends ACK feedback message or NACK feedback message by PHICH to UE as can be known, and by PDCCH to time that UE sends control information in the operation of step 708 during through 12ms (16-4), send ACK feedback message or NACK feedback message by PHICH to UE, and send control information to UE by PDCCH.
Step 712, UE sends upstream data by PUSCH to Serving cell and cooperation district.Wherein, UE need send upstream data to Serving cell and cooperation district according to the k2 value.
As seen, the method that the application of the invention provides, by the transmission intercal of existing LTE system is expanded, transmission intercal under the up CoMP technology is expanded to LTE system transmissions N at interval doubly, make under the situation of the current LTE processing procedure of compatibility, can also satisfy the transmission intercal of data under the CoMP technology, time-delay when Serving cell and cooperation district cause having produced alternately also can be carried out transfer of data according to the time requirement of agreement defined.
Wherein, the inventive method can be adjusted each sequence of steps according to actual needs.
The embodiment of the invention has also proposed a kind of communication system of closing in the automatic repeat requests, it is characterized in that, comprises the network equipment and the UE at Serving cell place, wherein:
The network equipment at described Serving cell place is used to obtain the transmission intercal under the CoMP; Send the CoMP configuration information to described UE, carried the transmission intercal information under the described CoMP in the described CoMP configuration information; And carry out data interaction according to transmission intercal under the described CoMP and described UE.
Wherein, the network equipment at described Serving cell place also is used for: the transmission intercal under the described CoMP is set to N times of the transmission intercal under the LTE system, and wherein, N is positive integer value; The mode of obtaining the N value comprises: obtain the N value by the mode of default value; Or the mode of the time delay by determining minizone information transmission is obtained the N value.
Wherein, the network equipment at described Serving cell place also is used for: obtain the time interval k1 that upstream data is carried out downstream feedback; And obtain the N value according to formula N=ceil{ (k1+k2)/HARQ RTT}, wherein, described HARQ RTT is the transmission intercal under the LTE system, and described k2 is the time delay between the uplink of dispatching of dispatching command under the LTE system and this dispatching command, and ceil{} represents the number that rounds up.
Described UE, be used to receive CoMP configuration information from the network equipment at described Serving cell place, according to the transmission intercal under the CoMP of the transmission intercal information acquisition correspondence under the CoMP that carries in the described CoMP configuration information, and carry out data interaction by the network equipment at transmission intercal under the described CoMP and described Serving cell place.
A kind of communication equipment that mixes in the automatic repeat requests that the embodiment of the invention six also proposes, this equipment is network equipment, as shown in Figure 8, comprising:
Acquisition module 81 is used to obtain the transmission intercal under the CoMP.
Wherein, state acquisition module 81 and specifically be used for: obtain transmission intercal under the CoMP according to the transmission intercal under the LTE system, the N that the transmission intercal under the described CoMP is set to the transmission intercal under the LTE system doubly, wherein, N is positive integer value.
Need to prove that the mode that described acquisition module 81 obtains the N value comprises: obtain the N value by the mode of default value; Or the mode of the time delay by determining minizone information transmission is obtained the N value.
Described acquisition module 81 also is used for: obtain the time interval k1 that upstream data is carried out downstream feedback; And obtain the N value according to formula N=ceil{ (k1+k2)/HARQ RTT}, wherein, described HARQ RTT is the transmission intercal under the LTE system, and described k2 is the time delay between the uplink of dispatching of dispatching command under the LTE system and this dispatching command, and ceil{} represents the number that rounds up.
Wherein, when described Serving cell and cooperation district were positioned at same base station, employed time delay was a described part of upstream data being carried out the time interval k1 of downstream feedback when described acquisition module 81 obtained the information of carrying out in the base station and transmits; Or
When described Serving cell and cooperation district were positioned at different base stations, employed time delay was a described part of upstream data being carried out the time interval k1 of downstream feedback when described acquisition module 81 obtained between Serving cell and the cooperation district and to carry out wire transmission by the X2 mouth.
Sending module 82 is used for sending the CoMP configuration information to UE, has carried the information of the transmission intercal under the CoMP that described acquisition module 81 obtains in the described CoMP configuration information, obtains transmission intercal under the described CoMP by described UE according to described CoMP configuration information.
Wherein, described sending module 82 specifically is used for: send the CoMP configuration information by the RRC signaling to described UE, carried N value and k1 value in the described CoMP configuration information.
Further, described acquisition module 81 also is used to be provided with the size of N value, and at this moment, described sending module 82 also is used for sending the CoMP configuration information by the RRC signaling to described UE, carried the N value in the described CoMP configuration information, determined transmission intercal according to described N value by described UE.
Transport module 83, transmission intercal and described UE under the CoMP that is used for obtaining according to described acquisition module 81 carry out data interaction.
Further, when the mode of the time delay by determining minizone information transmission was obtained the N value, described transport module 83 comprised:
Receive submodule 831, be used for by the upstream data of PUSCH reception from described UE;
First determines submodule 832, is used for determining to described UE feedack in conjunction with the reception condition of the network equipment at described cooperation district place and the reception condition of described reception submodule 831;
Second determines submodule 833, is used for definite time to described UE feedback information of time interval k1 of upstream data being carried out downstream feedback according to described;
Send submodule 834, be used for determining the time of the feedback information that submodule 833 is determined and send first to described UE to determine the feedback information that submodule 832 is determined by PHICH according to described second.
Wherein, described acquisition module 81 also is used for: obtain the k3 value according to formula k3=N*HARQ RTT-k1-k2;
Described transmission submodule 834 also is used for: send control information to described UE according to the k3 value and by PDCCH, described k3 value is specially by PHICH to described UE transmission feedack and by the time interval of PDCCH between described UE sends control information.
Further, when obtaining the N value by the mode of default value, the reception submodule 831 under the described transport module 83 is used for by the upstream data of PUSCH reception from described UE;
First determines submodule 832, is used for determining to described UE feedack in conjunction with the reception condition of the network equipment at described cooperation district place and the reception condition of described reception submodule 831;
Second determines submodule 833, also is used for according to definite time to described UE feedback information of described N value;
Send submodule 834, also be used for determining that according to described first the time of the feedback information that submodule 833 is determined sends feedack by PHICH to described UE, and send control information to described UE by PDCCH.
As seen, the device that the application of the invention provides, by the transmission intercal of existing LTE system is expanded, transmission intercal under the up CoMP technology is expanded to LTE system transmissions N at interval doubly, make under the situation of the current LTE processing procedure of compatibility, can also satisfy the transmission intercal of data under the CoMP technology, time-delay when Serving cell and cooperation district cause having produced alternately also can be carried out transfer of data according to the time requirement of agreement defined.
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.
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 pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, 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 (25)
1. a communication means that mixes in the automatic repeat requests is characterized in that, may further comprise the steps:
The network equipment at Serving cell place obtains the transmission intercal under the CoMP;
The network equipment at described Serving cell place sends the CoMP configuration information to UE, has carried the transmission intercal information under the described CoMP in the described CoMP configuration information, obtains transmission intercal under the described CoMP by described UE according to described CoMP configuration information;
The network equipment at described Serving cell place carries out data interaction according to transmission intercal under the described CoMP and described UE.
2. the method for claim 1 is characterized in that, the transmission intercal that the network equipment at described Serving cell place obtains under the CoMP comprises:
The network equipment at described Serving cell place obtains transmission intercal under the CoMP according to the transmission intercal under the LTE system.
3. method as claimed in claim 2 is characterized in that, the network equipment at described Serving cell place specifically comprises according to the transmission intercal that the transmission intercal under the LTE system obtains under the CoMP:
Transmission intercal under the described CoMP of network equipment at described Serving cell place is set to N times of the transmission intercal under the LTE system, and wherein, N is positive integer value.
4. method as claimed in claim 3 is characterized in that, the mode that the network equipment at described Serving cell place obtains the N value comprises:
Obtain the N value by the mode of default value; Or
The mode of the time delay by determining minizone information transmission is obtained the N value.
5. method as claimed in claim 4 is characterized in that, the mode of described time delay by determining minizone information transmission is obtained the N value and specifically comprised:
The network equipment at described Serving cell place obtains the time interval k1 that upstream data is carried out downstream feedback;
The network equipment at described Serving cell place obtains the N value according to formula N=ceil{ (k1+k2)/HARQ RTT}, wherein, described HARQ RTT is the transmission intercal under the LTE system, described k2 is the time delay between the uplink of dispatching of dispatching command under the LTE system and this dispatching command, and ceil{} represents the number that rounds up.
6. method as claimed in claim 5, it is characterized in that, when described Serving cell and cooperation district were positioned at same base station, the described time interval k1 that upstream data is carried out downstream feedback specifically was included in the information of carrying out in the base station employed time delay when transmitting; Or
When described Serving cell and cooperation district were positioned at different base stations, the described time interval k1 that upstream data is carried out downstream feedback specifically comprised between Serving cell and the cooperation district employed time delay when carrying out wire transmission by the X2 mouth.
7. method as claimed in claim 5 is characterized in that, the network equipment at described Serving cell place carries out data interaction according to the transmission intercal under the described CoMP and described UE and specifically comprises:
Described UE sends upstream data by PUSCH to the network equipment at described Serving cell place and the network equipment at cooperation district place;
The network equipment at described Serving cell place is determined to described UE feedack in conjunction with the reception condition and the reception condition of self of the network equipment at described cooperation district place;
The network equipment at described Serving cell place is according to described definite time to described UE feedback information of time interval k1 of upstream data being carried out downstream feedback;
The network equipment at described Serving cell place sends feedack according to the time of described feedback information and by PHICH to described UE.
8. method as claimed in claim 7 is characterized in that, the network equipment at described Serving cell place obtains after the N value according to formula N=ceil{ (k1+k2)/HARQ RTT}, also comprises:
The network equipment at described Serving cell place obtains the k3 value according to formula k3=N*HARQ RTT-k1-k2;
The network equipment at described Serving cell place according to time of described feedback information and by PHICH after described UE sends feedack, also comprise:
The network equipment at described Serving cell place sends control information to described UE according to the k3 value and by PDCCH, and described k3 value is specially by PHICH to described UE transmission feedack and by the time interval of PDCCH between described UE sends control information.
9. method as claimed in claim 8 is characterized in that, the network equipment at described Serving cell place sends the CoMP configuration information to UE and specifically comprises:
The network equipment at described Serving cell place sends the CoMP configuration information by the RRC signaling to described UE, has carried N value and k1 value in the described CoMP configuration information.
10. method as claimed in claim 4 is characterized in that, described mode by default value is obtained the N value and is specially the size that the N value is set at the network equipment at described Serving cell place.
11. method as claimed in claim 10 is characterized in that, the network equipment at described Serving cell place sends the CoMP configuration information to UE and specifically comprises:
The network equipment at described Serving cell place sends the CoMP configuration information by the RRC signaling to described UE, has carried the N value in the described CoMP configuration information, determines transmission intercal by described UE according to described N value.
12. method as claimed in claim 10 is characterized in that, the network equipment at described Serving cell place carries out data interaction according to the transmission intercal under the described CoMP and described UE and specifically comprises:
Described UE sends upstream data by PUSCH to the network equipment at described Serving cell place and the network equipment at cooperation district place;
The network equipment at described Serving cell place is determined to described UE feedack in conjunction with the reception condition and the reception condition of self of the network equipment at described cooperation district place;
The network equipment at described Serving cell place is according to definite time to described UE feedback information of described N value;
The network equipment at described Serving cell place sends feedack by PHICH to described UE according to the time of described feedback information, and sends control information to described UE by PDCCH.
13. a communication system of mixing in the automatic repeat requests is characterized in that, comprises the network equipment and the UE at Serving cell place, wherein:
The network equipment at described Serving cell place is used to obtain the transmission intercal under the CoMP; Send the CoMP configuration information to described UE, carried the transmission intercal information under the described CoMP in the described CoMP configuration information; And carry out data interaction according to transmission intercal under the described CoMP and described UE;
Described UE, be used to receive CoMP configuration information from the network equipment at described Serving cell place, according to the transmission intercal under the CoMP of the transmission intercal information acquisition correspondence under the CoMP that carries in the described CoMP configuration information, and carry out data interaction by the network equipment at transmission intercal under the described CoMP and described Serving cell place.
14. system as claimed in claim 13 is characterized in that, the network equipment at described Serving cell place also is used for: the transmission intercal under the described CoMP is set to N times of the transmission intercal under the LTE system, and wherein, N is positive integer value; The mode of obtaining the N value comprises: obtain the N value by the mode of default value; Or the mode of the time delay by determining minizone information transmission is obtained the N value.
15. system as claimed in claim 14 is characterized in that, the network equipment at described Serving cell place also is used for: obtain the time interval k1 that upstream data is carried out downstream feedback; And obtain the N value according to formula N=ceil{ (k1+k2)/HARQ RTT}, wherein, described HARQ RTT is the transmission intercal under the LTE system, and described k2 is the time delay between the uplink of dispatching of dispatching command under the LTE system and this dispatching command, and ceil{} represents the number that rounds up.
16. a communication equipment that mixes in the automatic repeat requests is characterized in that, comprising:
Acquisition module is used to obtain the transmission intercal under the CoMP;
Sending module is used for sending the CoMP configuration information to UE, has carried the information of the transmission intercal under the CoMP that described acquisition module obtains in the described CoMP configuration information, obtains transmission intercal under the described CoMP by described UE according to described CoMP configuration information;
Transport module, transmission intercal and described UE under the CoMP that is used for obtaining according to described acquisition module carry out data interaction.
17. equipment as claimed in claim 16, it is characterized in that described acquisition module specifically is used for: obtain transmission intercal under the CoMP according to the transmission intercal under the LTE system, the N that the transmission intercal under the described CoMP is set to the transmission intercal under the LTE system doubly, wherein, N is positive integer value.
18. equipment as claimed in claim 17 is characterized in that, the mode that described acquisition module obtains the N value comprises: obtain the N value by the mode of default value; Or the mode of the time delay by determining minizone information transmission is obtained the N value.
19. equipment as claimed in claim 18 is characterized in that, described acquisition module also is used for:
Obtain the time interval k1 that upstream data is carried out downstream feedback; And obtain the N value according to formula N=ceil{ (k1+k2)/HARQ RTT}, wherein, described HARQ RTT is the transmission intercal under the LTE system, and described k2 is the time delay between the uplink of dispatching of dispatching command under the LTE system and this dispatching command, and ceil{} represents the number that rounds up.
20. equipment as claimed in claim 19 is characterized in that, described acquisition module also is used for:
When described Serving cell and cooperation district were positioned at same base station, employed time delay was a described part of upstream data being carried out the time interval k1 of downstream feedback when described acquisition module obtained the information of carrying out in the base station and transmits; Or
When described Serving cell and cooperation district were positioned at different base stations, employed time delay was a described part of upstream data being carried out the time interval k1 of downstream feedback when described acquisition module obtained between Serving cell and the cooperation district and to carry out wire transmission by the X2 mouth.
21. equipment as claimed in claim 19 is characterized in that, when the mode of the time delay by determining minizone information transmission was obtained the N value, described transport module comprised:
Receive submodule, be used for by the upstream data of PUSCH reception from described UE;
First determines submodule, is used for determining to described UE feedack in conjunction with the reception condition of the network equipment at described cooperation district place and the reception condition of described reception submodule;
Second determines submodule, is used for definite time to described UE feedback information of time interval k1 of upstream data being carried out downstream feedback according to described;
Send submodule, be used for determining the time of the feedback information that submodule is determined and sending feedack to described UE by PHICH according to described second.
22. equipment as claimed in claim 21 is characterized in that, described acquisition module also is used for:
Obtain the k3 value according to formula k3=N*HARQ RTT-k1-k2;
Described transmission submodule also is used for:
Send control information to described UE according to the k3 value and by PDCCH, described k3 value is specially by PHICH to described UE transmission feedack and by the time interval of PDCCH between described UE sends control information.
23. equipment as claimed in claim 22 is characterized in that, described sending module specifically is used for:
Send the CoMP configuration information by the RRC signaling to described UE, carried N value and k1 value in the described CoMP configuration information.
24. equipment as claimed in claim 23 is characterized in that, described acquisition module also is used for: the size that the N value is set;
Described sending module also is used for: send the CoMP configuration information by the RRC signaling to described UE, carried the N value in the described CoMP configuration information, determine transmission intercal by described UE according to described N value.
25. equipment as claimed in claim 23 is characterized in that, when obtaining the N value by the mode of default value, the reception submodule under the described transport module is used for by the upstream data of PUSCH reception from described UE;
First determines submodule, is used for determining to described UE feedack in conjunction with the reception condition of the network equipment at described cooperation district place and the reception condition of described reception submodule;
Second determines submodule, also is used for according to definite time to described UE feedback information of described N value;
Send submodule, also be used for sending feedack by PHICH to described UE, and send control information to described UE by PDCCH according to the time of the definite feedback information of described first definite submodule.
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