Embodiment
Embodiment of the invention network side sends the ascending-descending subframes configuration information by the high-level signaling of user-specific to the TDD of evolution subscriber equipment; The TDD subscriber equipment of evolution carries out TDD radio frame transmission data according to the ascending-descending subframes configuration information from network side that the high-level signaling by user-specific receives.Because the invention process is a user device configuration TDD ascending-descending subframes by high-level signaling, thereby has shortened the change cycle, can adapts to business demand and change; And do not need all subscriber equipmenies frequent read system message again all in the sub-district, save power consumption of user equipment.
Wherein, the TDD subscriber equipment of evolution is the subscriber equipment of version after LTE Rel (version)-11 reaches.The TDD ascending-descending subframes configuration of the ascending-descending subframes configuration information correspondence that the high-level signaling by user-specific sends can be a kind of (as shown in table 1) in the TDD ascending-descending subframes configuration of stipulating among Rel-8, Rel-9 and the Rel-10, also can be other new ascending-descending subframes configuration modes.
Below in conjunction with Figure of description the embodiment of the invention is described in further detail.
In the declarative procedure below, implement to describe from the cooperation of network side and user equipment side earlier, describe from the enforcement of network side and user equipment side respectively at last, but this does not also mean that the two must cooperate enforcement, in fact, separate when implementing, also solved respectively in network side, the existing problem of user equipment side when network side and user equipment side, when just the two is used in combination, can obtain better technique effect.
As shown in Figure 2, the system of transmission data comprises in the embodiment of the invention TDD radio frames: the TDD subscriber equipment 20 of network equipment 10 and evolution.
Network equipment 10 is used for determining the ascending-descending subframes configuration information of the TDD subscriber equipment 20 of evolution, and sends the ascending-descending subframes configuration informations by the high-level signaling of user-specific to the TDD of evolution subscriber equipment 20, and by TDD radio frame transmission data;
The TDD subscriber equipment 20 of evolution, be used for ascending-descending subframes configuration information from network equipment 10 according to the high-level signaling reception of passing through user-specific, determine the configuration of TDD ascending-descending subframes, according to the ascending-descending subframes configuration of determining, by TDD radio frame transmission data.
Preferably, network equipment 10 sends to the ascending-descending subframes configuration information of the TDD subscriber equipment of this evolution according at least a definite needs in the following message:
1, the practical business demand of the TDD subscriber equipment of evolution and network service;
2, the TDD subscriber equipment of evolution carries out the business demand amount of D2D (Device to Device communication, direct communication between the user terminal);
3, whether need to strengthen the up covering of the TDD subscriber equipment of evolution.
Wherein, in the TDD subscriber equipment of evolution and the practical business demand of network service, downlink data is that network equipment sends to subscriber equipment, and the transmission buffering area of network side has data to be sent, judges the traffic carrying capacity size thus; Upstream data amount size is that the transmission buffer area data volume according to terminal to report obtains.
Wherein, the TDD subscriber equipment of evolution carries out in the business demand amount of D2D, can be in the business demand amount of D2D according to user equipment to report, and modes such as network side distribution are determined.
Such as, according to the TDD subscriber equipment of evolution and the definite ascending-descending subframes configuration information that need send to the TDD subscriber equipment of this evolution of the practical business demand of network service (being the business proportion that up-downgoing needs).Among Fig. 7, the downlink business demand that UE2 carries out D2D is bigger, then can be the configuration in the UE2 allocation table 15; The up-downgoing business demand amount that UE3 carries out D2D is suitable, then can be the configuration in the UE3 allocation table 11.
Determine to send to the ascending-descending subframes configuration information of the TDD subscriber equipment of this evolution such as, the business demand amount (be up-downgoing need business proportion) of carrying out D2D according to the TDD subscriber equipment of evolution.Among Fig. 7, the downlink business demand of UE2 and network service is bigger, then can be the configuration in the UE2 allocation table 15; The up-downgoing business demand amount of UE3 and network service is suitable, then can be the configuration in the UE3 allocation table 11.
Such as, whether according to needs strengthen the up covering of the TDD subscriber equipment of evolution, definite needs send to the ascending-descending subframes configuration information of the TDD subscriber equipment of this evolution, and then the embodiment of the invention can solve the up covering problem of cell edge power limited users equipment.As shown in figure 10, the descending and uplink service ratio of plot planning is 4: 1, so the ascending-descending subframes of system broadcasts is configured to 2 in the table 1 (being DSUDDDSUDD).For cell edge power limited users equipment, can't carry out UL subframe bundling according to this sub-frame allocation mode (is TTI bundling, a kind of up covering enhancement techniques of LTE, by being placed on, a packet transmits in continuous a plurality of sub-frame of uplink to promote transmission reliability, be applicable to the terminal of power limited, concrete grammar can be referring to 3GPP TS36.213).Network equipment 10 can dispose this type of power limited users equipment and adopt up more sub-frame configuration mode at this moment, 1 in the table 1 shown in the figure (being DSUUDDSUUD) for example, then this subscriber equipment can carry out UL subframe bundling operation according to prior art.When power limited users equipment was less, this execution mode had promptly guaranteed the covering of power limited users equipment, did not change the corresponding relation of the uplink-downlink configuration and the business proportion of whole sub-district again, thereby had guaranteed the utilance of ascending-descending subframes resource.
Need to prove that the embodiment of the invention is not limited to above-mentioned 3 kinds of modes, other modes of ascending-descending subframes configuration information that can determine to send to the TDD subscriber equipment of this evolution all are suitable for the embodiment of the invention.
If according to business demand, definite ascending-descending subframes configuration information that need send to the TDD subscriber equipment of this evolution owing to adopt different ascending-descending subframes configurations at different user devices in the same sub-district, adapts to the business demand of different user devices.
If whether according to needs strengthen the up covering of the TDD subscriber equipment of evolution, definite needs send to the ascending-descending subframes configuration information of the TDD subscriber equipment of this evolution, because by being the up more sub-frame configuration of user equipment allocation of cell edge, make this type of subscriber equipment can use UL subframe bundling mode transmit ascending data, promote up covering, avoid requiring to influence the up-downgoing service resources ratio of whole sub-district, promote resource utilization for the covering of edge small number of users equipment.
In force, the high-level signaling of the user-specific of carrying ascending-descending subframes configuration information has a lot, such as RRC (Radio Resource Control, Radio Resource control) signaling, MAC (Media Access Control, medium access control) signaling etc.
Preferably, network equipment 10 can send the ascending-descending subframes configuration information when the TDD of evolution subscriber equipment 20 and network connect.
Because the demand of the TDD subscriber equipment 20 of evolution might change, so network equipment 10 can the cycle or by modes such as high level triggerings, redefine the ascending-descending subframes configuration information of the TDD subscriber equipment 20 of evolution, if the ascending-descending subframes configuration information changes, can reconfigure by the high-level signaling of user-specific, such as sending the ascending-descending subframes configuration information by high-level signaling reprovision process.
Except the TDD subscriber equipment 20 of evolution, also have the TDD subscriber equipment of non-evolution in system, the TDD subscriber equipment of these non-evolution need dispose ascending-descending subframes by system broadcasts.Concrete, network equipment 10 sends the ascending-descending subframes configuration information by system broadcasts, is used to the TDD user device configuration TDD ascending-descending subframes of non-evolution.
Wherein, the TDD subscriber equipment of non-evolution is the subscriber equipment of version before LTE Rel-10 reaches.
Preferably, network equipment 10 is according to the demand data amount (comprising the business demand amount with network traffic demand and/or D2D) of the TDD subscriber equipment of the TDD subscriber equipment of non-evolution and network communication data demand and/or evolution, determines the ascending-descending subframes configuration information that need send by system broadcasts.
Such as, determine the ascending-descending subframes configuration information that needs send by system broadcasts according to the demand data amount of the TDD subscriber equipment 20 of non-evolution: the downlink business demand of the TDD subscriber equipment of non-evolution is bigger, then can select the many configurations of descending sub frame; The uplink service demand of the TDD subscriber equipment of non-evolution is bigger, then can select the many configurations of sub-frame of uplink, such as the configuration in the table 10.
Such as, determine the ascending-descending subframes configuration information that needs send by system broadcasts according to the demand data amount of the TDD subscriber equipment 20 of evolution: the downlink business demand of the TDD subscriber equipment 20 of evolution is bigger, then can select the many configurations of descending sub frame; The uplink service demand of the TDD subscriber equipment 20 of evolution is bigger, then can select the many configurations of sub-frame of uplink.
Mode for the ascending-descending subframes configuration information that sends by system broadcasts according to the demand data amount of the TDD subscriber equipment 20 of the demand data amount of the TDD subscriber equipment of non-evolution and evolution and definite needs has a variety of, such as being configured with the TDD subscriber equipment of non-evolution or the TDD subscriber equipment demand of evolution with reference to the strategy of network side.
Wherein, network equipment 10 need send data or receive data on same subframe., communicate according to being handed down to the subscriber equipment ascending-descending subframes configuration information of (comprising the TDD subscriber equipment of evolution and the TDD subscriber equipment of non-evolution) such as network equipment 10 with subscriber equipment.
Be assigned as the subframe of identical traffic direction for different user devices (be all subscriber equipmenies in the system (or sub-district), comprise the TDD subscriber equipment of non-evolution and the TDD subscriber equipment of evolution), network equipment 10 adopts identical transmission direction.All is descending sub frame such as subframe A at different subscriber equipmenies, and then the transmission direction network equipment 10 for subframe A also adopts descending.
Be assigned as the subframe of different transmission directions for different user devices (comprise non-evolution with subscriber equipment evolution), network equipment 10 is determined to be assigned as the transmission direction of the subframe of different transmission directions at network side for different user devices according to the business demand amount of subscriber equipment.Concrete, network equipment 10 is according to the business demand amount of each subscriber equipment, and which subscriber equipment service judgement need be preferably, and the subframe direction of employing and this user device configuration is transmitted.Is sub-frame of uplink such as subframe B for the subscriber equipment that has, for the subscriber equipment that has is descending sub frame, and the business demand amount of subscriber equipment 1 is bigger, determine to be preferably subscriber equipment 1 service, subframe B is up for family equipment 1, and then the transmission direction network equipment 10 for subframe A also adopts up.
Be assigned as the subframe of different transmission directions for different user devices (comprise non-evolution with subscriber equipment evolution), except the business demand amount according to subscriber equipment is determined transmission direction, can also be according to whether HARQ (the Hybrid Automatic Repeat reQuest that feeds back is arranged in the sub-district, mix automatic repeat requests) process, determine to be assigned as of the transmission direction of the subframe of different transmission directions at network side for different user devices.If need UL (down link) ACK/NACK feedback such as the DL that one or more subscriber equipmenies are arranged (down link) HARQ transmission, determine that corresponding one or more feedback subframe is a sub-frame of uplink; Otherwise,, determine that corresponding one or more feedback subframe is a descending sub frame if there is one or more users' UL HARQ transmission to need DL ACK/NACK feedback.
In force, when network equipment passes through TDD radio frame transmission data, can pass through PDSCH (Physical Downlink Shared Channel, physical down link sharing channel) sends downlink data, and by PUSCH (Physical Uplink Shared Channel, physical uplink link sharing channel) reception upstream data.
Preferably, when the TDD subscriber equipment 20 of evolution passes through TDD radio frame transmission data, receive data by the descending sub frame in the TDD radio frames, and send data by the sub-frame of uplink in the TDD radio frames.
Concrete, the TDD subscriber equipment 20 of evolution is being assigned as the detection of carrying out descending control signaling PDCCH on the descending sub frame for it; If detecting PDCCH is downlink scheduling, then according to the MCS format receiving data of indicating with downlink scheduling on the frequency domain resource of downlink scheduling indication in the descending sub frame of downlink scheduling indication; If detecting PDCCH is uplink scheduling, then according to the MCS format receiving data of indicating with uplink scheduling on the frequency domain resource of uplink scheduling indication in the descending sub frame of uplink scheduling indication.
On pre-assigned PRB resource, carry out the blind Detecting of descending control signaling such as the TDD subscriber equipment 20 of evolution.If detect PDCCH is DL grant (downlink scheduling), then according on the specific frequency domain resource during the indication of PDCCH is on current descending sub frame and/or follow-up one or more specific descending sub frame with specific MCS format receiving data (these specific all according to PDCCH indication determine, down with); If detect PDCCH is UL grant (uplink scheduling), and then the indication according to PDCCH sends data with specific MCS form on the specific frequency domain resource in follow-up one or more specified upstream subframe.
In force, if the TDD subscriber equipment 20 and the network of evolution communicate, then the TDD subscriber equipment 20 of evolution receives downlink data from network side by PDSCH, and sends upstream data by PUSCH to network side.
If the TDD subscriber equipment of evolution 20 carries out D2D, then the TDD subscriber equipment 20 of evolution is when carrying out D2D, send data by sub-frame of uplink to the TDD of other evolution subscriber equipment, and by the data of descending sub frame reception from the TDD subscriber equipment of other evolution.
In force, can under network controls, carry out D2D.Concrete, network equipment 10 is after the TDD subscriber equipment of determining two evolution need carry out D2D, select a specific sub-frame, wherein specific sub-frame send for needs data user device configuration be sub-frame of uplink, receive for needs data user device configuration be descending sub frame; The TDD subscriber equipment that network equipment 10 is dispatched the evolution that needs the transmission data sends data on specific sub-frame, and scheduling needs the TDD subscriber equipment of the evolution of reception data to receive data on specific sub-frame.
Such as, among Fig. 8 A, UE1 and UE2 are assigned to different ascending-descending subframes configurations, and network equipment 10 knows that this two UE need carry out D2D communication (such as knowing by mode such as mutual between subscriber equipment and the network side).Then UE1 receives the UL grant that network equipment 10 sends and indicates it to send data (these data are the D2D data that send to UE2) with specific MCS on specific resources in subframe 8 in subframe 4, and UE2 receives the DL grant that network equipment 10 sends in subframe 8 receive data with identical MCS on identical resource in current subframe.Said process has been realized the D2D communication of UE1 to UE2, and this communication is finished under network controls.
Except under network controls, carrying out D2D, can also under network controls, not carry out D2D, promptly carry out carrying out the D2D transmission on the opposite subframe of transmission direction that two subscriber equipmenies of D2D directly are chosen in the subscriber equipment that carries out D2D.Such as, among Fig. 8 B, UE1 is received on subframe 8 by UE2 at the signal that sends on the subframe 8.
Preferably, network equipment 10 passes through the TDD radio frames when transmitting feedback information, be used on the sub-frame of uplink of receiving feedback information receiving the feedback information that corresponding data receives the HARQ process, and be used to send on the descending sub frame of feedback information and send the feedback information that corresponding data sends the HARQ process;
Accordingly, the TDD subscriber equipment 20 of evolution passes through the TDD radio frames when transmitting feedback information, send the feedback information that corresponding data receives the HARQ process on the sub-frame of uplink of feedback information being used to send, and be used for receiving the feedback information that corresponding data sends the HARQ process on the descending sub frame of receiving feedback information.
Wherein, determine that the mode which subframe is used for transmitting feedback information has a lot, enumerates several below.
Feedback information mode one, network equipment 10 are identified for the sub-frame of uplink of receiving feedback information according to the sequential relationship of the PDSCH HARQ transmission under the specific ascending-descending subframes configuration of stipulating among the Rel-8 TDD with uplink feedback information; And, be identified for sending the descending sub frame of feedback information according to the sequential relationship of the PUSCH HARQ transmission under the specific ascending-descending subframes configuration of stipulating among the Rel-8 TDD with downlink feedback information; Wherein, specific ascending-descending subframes configuration is the ascending-descending subframes configuration by the ascending-descending subframes configuration information correspondence of user-specific high-level signaling transmission.
Accordingly, the TDD subscriber equipment 20 of evolution is identified for sending the sub-frame of uplink of feedback information according to the sequential relationship of the PDSCH HARQ transmission under the specific ascending-descending subframes configuration of stipulating among the Rel-8 TDD with uplink feedback information; And, be identified for the descending sub frame of receiving feedback information according to the sequential relationship of the PUSCH HARQ transmission under the specific ascending-descending subframes configuration of stipulating among the Rel-8 TDD with downlink feedback information; Wherein, the configuration of specific ascending-descending subframes is the ascending-descending subframes configuration of the ascending-descending subframes configuration information correspondence received by the user-specific high-level signaling of the TDD subscriber equipment of evolution.
Feedback information mode two, network equipment 10 are identified for the sub-frame of uplink of receiving feedback information according to the sequential relationship of the PDSCH HARQ transmission under the specific ascending-descending subframes configuration of stipulating among the Rel-8 TDD with uplink feedback information; Wherein, the sub-frame of uplink that is used for receiving feedback information is that network side passes through sub-frame of uplink set that ascending-descending subframes configuration information that the user-specific high-level signaling sends determines and the subframe of concentrating by the sub-frame of uplink intersection of sets that the ascending-descending subframes configuration information that system broadcasts sends is determined; And, be identified for sending the descending sub frame of feedback information according to the sequential relationship of the PUSCH HARQ transmission under the specific ascending-descending subframes configuration of stipulating among the Rel-8 TDD with downlink feedback information; Wherein, the descending sub frame that is identified for sending feedback information is that network side passes through descending sub frame set that ascending-descending subframes configuration information that the user-specific high-level signaling sends determines and the subframe of concentrating by the descending sub frame intersection of sets that the ascending-descending subframes configuration information that system broadcasts sends is determined.Wherein, specific ascending-descending subframes configuration is the ascending-descending subframes configuration by the ascending-descending subframes configuration information correspondence of user-specific high-level signaling transmission.
Accordingly, the TDD subscriber equipment 20 of evolution is identified for sending the sub-frame of uplink of feedback information according to the sequential relationship of the PDSCH HARQ transmission under the specific ascending-descending subframes configuration of stipulating among the Rel-8 TDD with uplink feedback information; Wherein, the sub-frame of uplink that is used to send feedback information is the sub-frame of uplink set determined of ascending-descending subframes configuration information that the TDD subscriber equipment of evolution is received by the user-specific high-level signaling and the subframe of concentrating by the sub-frame of uplink intersection of sets that the ascending-descending subframes configuration information that system broadcasts is received is determined; And, be identified for the descending sub frame of receiving feedback information according to the sequential relationship of the PUSCHHARQ transmission under the specific ascending-descending subframes configuration of stipulating among the Rel-8 TDD with downlink feedback information; Wherein, the descending sub frame that is used for receiving feedback information is the descending sub frame set determined of ascending-descending subframes configuration information that the TDD subscriber equipment of evolution is received by the user-specific high-level signaling and the subframe of concentrating by the descending sub frame intersection of sets that the ascending-descending subframes configuration information that system broadcasts is received is determined, not the receiving feedback information not of the descending sub frame in this occurs simultaneously.Wherein, the configuration of specific ascending-descending subframes is the ascending-descending subframes configuration of the ascending-descending subframes configuration information correspondence received by the user-specific high-level signaling of the TDD subscriber equipment of evolution.
Subframe during feedback information mode three, network equipment 10 are gathered the specified upstream subframe is as the sub-frame of uplink that is used for receiving feedback information; Wherein, the set of specified upstream subframe is that transmission direction all is up subframe in any ascending-descending subframes configuration, such as subframe 2 and/or subframe 7; And with the subframe in the set of specific descending sub frame as the descending sub frame that is used to send feedback information; Wherein, the set of specific descending sub frame is that transmission direction all is descending subframe in any ascending-descending subframes configuration, such as subframe 0,1, and at least one in 5 and 6.
Accordingly, the subframe during the TDD subscriber equipment 20 of evolution is gathered the specified upstream subframe is as the sub-frame of uplink that is used to send feedback information; Wherein, the set of specified upstream subframe is that transmission direction all is up subframe in any ascending-descending subframes configuration, such as subframe 2 and/or subframe 7; And with the subframe in the set of specific descending sub frame as the descending sub frame that is used for receiving feedback information; Wherein, the set of specific descending sub frame is that transmission direction all is descending subframe in any ascending-descending subframes configuration, such as subframe 0,1, and at least one in 5 and 6.
Such as, according to the real time traffic situation of the TDD subscriber equipment needs of different evolution transmission, determine to send to the ascending-descending subframes configuration information of the TDD subscriber equipment of this evolution.If the business demand of the TDD subscriber equipment 1 of section (for example radio frames 10ms) a certain evolution sometime is bigger, then carry out data transmit-receive operation and corresponding HARQ feedback operation (how not have the bigger UE of traffic needs, network side can be chosen the sub-frame allocation mode of certain UE wantonly and work) according to the ascending-descending subframes method of salary distribution of the TDD subscriber equipment of distributing to this evolution; The transfer of data of the TDD subscriber equipment of other evolution can be assigned at the TDD subscriber equipment 1 with evolution on the subframe of common direction carries out.With Fig. 7 is example, if the business demand of section UE2 is bigger sometime, then carry out data transmit-receive operation and corresponding HARQ feedback operation according to the sub-frame allocation mode of distributing to UE2 (being DSUDDDDDD), this moment, UE3 still can be in subframe 0,1,4,5, receive control signaling and data on 6,9, and the ACK/NACK feedback (corresponding feedback information mode three) that on subframe 2, sends data and descending HARQ process correspondence; Perhaps on subframe 2, send data,, send the ACK/NACK feedback (corresponding feedback information mode one and two, the ACK/NACK feedback network side that send on the subframe 3,7,8 this moment can't be received) of descending HARQ process correspondence on 7,8 in subframe 2,3.
Preferably, at feedback information mode two, network equipment can guarantee the normal reception of ULACK/NACK feedback according to following manner: 1) network equipment is by the scheduling restriction, at the UE3 this moment of the scheduling DL HARQ process relevant with feeding back subframe 2 only; 2) network equipment is informed all transmission on subframe 2 of DL HARQ feedback UE3 this moment by configuration; 3) network equipment informs that by configuration UE3 carries out feedback transmission according to identical configuration with UE2 (DSUDDDDDDD) corresponding DL HARQ feedback sequential and method this moment.
Wherein, the scheme of the embodiment of the invention can also be applied to have HetNet (the Heterogenous Network that Single Cell ID (single cell ID) mode is disposed, heterogeneous network) in the sub-district, RRH (the Remote Radio Head that two Indoor (indoor) are arranged in a Macro (grand) base station range, far end radio frequency) sub-district, adopt identical Cell ID with Macro, and be connected to Macro by wired backhaul.Each RRH does not send the system broadcasts of oneself in this case, thus UE only can be from the broadcast message of Macro sub-district the uplink-downlink configuration information of reading system.And because the traffic performance in the RRH sub-district may be different with Macro, and the traffic performance of different RRH sub-districts also may be different, and the UE that therefore is positioned at a certain RRH sub-district can know that itself and corresponding RRH communicate the ascending-descending subframes configuration of being adopted by exclusive high-level signaling.As shown in Figure 9, LUE1 mainly carries out uplink traffic transmission among the RRH1, so RRH1 and LUE1 carry out data transmit-receive according to the DSUUUDSUUU mode; Simultaneously LUE2 mainly carries out downlink traffic transmission among the RRH2, so RRH2 and LUE2 carry out data transmit-receive according to the DSUDDDDDDD mode.The precondition of Ying Yonging is to have Signal Spacing preferably between each RRH sub-district or between RRH and the Macro sub-district like this, and the DL-UL cross time-slot that can shield between the transmission point disturbs.
The embodiment of the invention is under the Hetnet of Single Cell ID disposes, as if between the different RRH covering that belongs to same Cell ID stronger Signal Spacing being arranged, then different RRH can use different ascending-descending subframes configuration modes to provide service for its UE, to adapt to the business demand of different hot spot regions.
Wherein, the network equipment of the embodiment of the invention can be base station (such as a macro base station, Home eNodeB etc.), also can be RN (relaying) equipment, can also be other network equipment.
Based on same inventive concept, the method of transmission data in the method for transmission data and the user equipment side TDD radio frames also is provided in the embodiment of the invention in a kind of network equipment, subscriber equipment, the network side TDD radio frames, because the system similarity of transmission data in principle that these equipment and method are dealt with problems and the TDD radio frames, therefore the enforcement of these equipment and method can repeat part and repeat no more referring to the enforcement of system.
As shown in Figure 3, the network equipment of transmission data comprises in the embodiment of the invention TDD radio frames: the configuration module 300 and first data transmission module 310.
Configuration module 300 is used for determining the ascending-descending subframes configuration information of the TDD subscriber equipment of evolution, and sends the ascending-descending subframes configuration information by the high-level signaling of user-specific to the TDD of evolution subscriber equipment;
First data transmission module 310 is used for by TDD radio frame transmission data.
Preferably, configuration module 300 according to the TDD subscriber equipment of the practical business demand of the TDD subscriber equipment of evolution and network service, evolution carry out the business demand amount of D2D and whether needs strengthen at least a in the up covering of TDD subscriber equipment of evolution, determine to send to the ascending-descending subframes configuration information of the TDD subscriber equipment of this evolution.
Preferably, configuration module 300 sends the ascending-descending subframes configuration information when the TDD of evolution subscriber equipment and network connect; Or by high-level signaling reprovision process transmission ascending-descending subframes configuration information.
Preferably, configuration module 300 sends the ascending-descending subframes configuration information by system broadcasts, is used to the TDD user device configuration TDD ascending-descending subframes of non-evolution.
Preferably, configuration module 300 is according to the demand data amount of the TDD subscriber equipment of the demand data amount of the TDD subscriber equipment of non-evolution and/or evolution, determines the ascending-descending subframes configuration information that need send by system broadcasts.
Preferably, first data transmission module 310 sends data or receives data on same subframe.
Preferably, first data transmission module 310 communicates with subscriber equipment according to the ascending-descending subframes configuration information that is handed down to subscriber equipment.
Preferably, first data transmission module 310 is determined to be assigned as the transmission direction of the subframe of different transmission directions at network side for different user devices according to the business demand amount of subscriber equipment.
Preferably, first data transmission module 310 according to whether the HARQ process of feeding back is arranged in the sub-district is determined to be assigned as the transmission direction of the subframe of different transmission directions at network side for different user devices.
Preferably, first data transmission module 310 sends downlink data by PDSCH, and receives upstream data by PUSCH.
Preferably, first data transmission module 310 is after the TDD subscriber equipment of determining two evolution need carry out D2D, select a specific sub-frame, wherein specific sub-frame send for needs data user device configuration be sub-frame of uplink, receive for needs data user device configuration be descending sub frame; The subscriber equipment that scheduling needs to send data sends data on specific sub-frame, and the subscriber equipment that scheduling needs to receive data receives data on specific sub-frame.
Preferably, first data transmission module 310 is being used on the sub-frame of uplink of receiving feedback information receiving the feedback information that corresponding data receives the HARQ process, and is used to send on the descending sub frame of feedback information and sends the feedback information that corresponding data sends the HARQ process.
Preferably, first data transmission module 310 is identified for the sub-frame of uplink of receiving feedback information according to the sequential relationship of the PDSCH HARQ transmission under the specific ascending-descending subframes configuration of stipulating among the Rel-8TDD with uplink feedback information; According to the sequential relationship of the PUSCH HARQ transmission under the specific ascending-descending subframes configuration of stipulating among the Rel-8TDD, be identified for sending the descending sub frame of feedback information with downlink feedback information;
Wherein, specific ascending-descending subframes configuration is the ascending-descending subframes configuration by the ascending-descending subframes configuration information correspondence of user-specific high-level signaling transmission.
Preferably, first data transmission module 310 is identified for the sub-frame of uplink of receiving feedback information according to the sequential relationship of the PDSCH HARQ transmission under the specific ascending-descending subframes configuration of stipulating among the Rel-8TDD with uplink feedback information; Wherein, the sub-frame of uplink that is used for receiving feedback information is that network side passes through sub-frame of uplink set that ascending-descending subframes configuration information that the user-specific high-level signaling sends determines and the subframe of concentrating by the sub-frame of uplink intersection of sets that the ascending-descending subframes configuration information that system broadcasts sends is determined; According to the sequential relationship of the PUSCH HARQ transmission under the specific ascending-descending subframes configuration of stipulating among the Rel-8TDD, be identified for sending the descending sub frame of feedback information with downlink feedback information; Wherein, the descending sub frame that is identified for sending feedback information is that network side passes through descending sub frame set that ascending-descending subframes configuration information that the user-specific high-level signaling sends determines and the subframe of concentrating by the descending sub frame intersection of sets that the ascending-descending subframes configuration information that system broadcasts sends is determined.
Preferably, the subframe during first data transmission module 310 is gathered the specified upstream subframe is as the sub-frame of uplink that is used for receiving feedback information; Wherein, the set of specified upstream subframe is that transmission direction all is up subframe in any ascending-descending subframes configuration; With the subframe in the set of specific descending sub frame as the descending sub frame that is used to send feedback information; Wherein, specific descending sub frame set is that transmission direction all is descending subframe in any ascending-descending subframes configuration.
As shown in Figure 4, the TDD subscriber equipment of the evolution of transmission data comprises in the embodiment of the invention TDD radio frames: the determination module 400 and second data transmission module 410.
Determination module 400 is used for the ascending-descending subframes configuration information from network side according to the high-level signaling reception of passing through user-specific, determines the configuration of TDD ascending-descending subframes;
Second data transmission module 410 is used for according to the ascending-descending subframes configuration of determining, by TDD radio frame transmission data.
Preferably, second data transmission module 410 receives data by the descending sub frame in the TDD radio frames, and sends data by the sub-frame of uplink in the TDD radio frames.
Preferably, second data transmission module 410 carries out the PDCCH detection on descending sub frame; If detecting PDCCH is downlink scheduling, then according to the MCS format receiving data of indicating with downlink scheduling on the frequency domain resource of downlink scheduling indication in the descending sub frame of downlink scheduling indication; If detecting PDCCH is uplink scheduling, then according to the MCS format receiving data of indicating with uplink scheduling on the frequency domain resource of uplink scheduling indication in the descending sub frame of uplink scheduling indication;
Preferably, second data transmission module 410 sends data by sub-frame of uplink to the TDD of other evolution subscriber equipment when carrying out D2D, and by the data of descending sub frame reception from the TDD subscriber equipment of other evolution.
Preferably, second data transmission module 410 sends the feedback information that corresponding data receives the HARQ process being used to send on the sub-frame of uplink of feedback information, and is used for receiving the feedback information that corresponding data sends the HARQ process on the descending sub frame of receiving feedback information.
Preferably, second data transmission module 410 is identified for sending the sub-frame of uplink of feedback information according to the sequential relationship of the PDSCH HARQ transmission under the specific ascending-descending subframes configuration of stipulating among the Rel-8 TDD with uplink feedback information; According to the sequential relationship of the PUSCH HARQ transmission under the specific ascending-descending subframes configuration of stipulating among the Rel-8 TDD, be identified for the descending sub frame of receiving feedback information with downlink feedback information; Wherein, the configuration of specific ascending-descending subframes is the ascending-descending subframes configuration of the ascending-descending subframes configuration information correspondence received by the user-specific high-level signaling of the TDD subscriber equipment of evolution.
Preferably, second data transmission module 410 is identified for sending the sub-frame of uplink of feedback information according to the sequential relationship of the PDSCH HARQ transmission under the specific ascending-descending subframes configuration of stipulating among the Rel-8 TDD with uplink feedback information; Wherein, the sub-frame of uplink that is used to send feedback information is the sub-frame of uplink set determined of ascending-descending subframes configuration information that the TDD subscriber equipment of evolution is received by the user-specific high-level signaling and the subframe of concentrating by the sub-frame of uplink intersection of sets that the ascending-descending subframes configuration information that system broadcasts is received is determined; According to the sequential relationship of the PUSCH HARQ transmission under the specific ascending-descending subframes configuration of stipulating among the Rel-8 TDD, be identified for the descending sub frame of receiving feedback information with downlink feedback information; Wherein, the descending sub frame that is used for receiving feedback information is the descending sub frame set determined of ascending-descending subframes configuration information that the TDD subscriber equipment of evolution is received by the user-specific high-level signaling and the subframe of concentrating by the descending sub frame intersection of sets that the ascending-descending subframes configuration information that system broadcasts is received is determined.
Preferably, the subframe during second data transmission module 410 is gathered the specified upstream subframe is as the sub-frame of uplink that is used to send feedback information; Wherein, the set of specified upstream subframe is that transmission direction all is up subframe in any ascending-descending subframes configuration; With the subframe in the set of specific descending sub frame as the descending sub frame that is used for receiving feedback information; Wherein, specific descending sub frame set is that transmission direction all is descending subframe in any ascending-descending subframes configuration.
As shown in Figure 5, the method for transmission data comprises the following steps: in the embodiment of the invention network side TDD radio frames
Step 501, network side are determined the ascending-descending subframes configuration information of the TDD subscriber equipment of evolution, and send the ascending-descending subframes configuration information by the high-level signaling of user-specific to the TDD of evolution subscriber equipment;
Step 502, network side are by TDD radio frame transmission data.
Preferably, network side sends to the ascending-descending subframes configuration information of the TDD subscriber equipment of this evolution in the step 501 according at least a definite needs in the following message:
4, the practical business demand of the TDD subscriber equipment of evolution and network service;
5, the TDD subscriber equipment of evolution carries out the business demand amount of D2D;
6, whether need to strengthen the up covering of the TDD subscriber equipment of evolution.
Need to prove that the embodiment of the invention is not limited to above-mentioned 3 kinds of modes, other modes of ascending-descending subframes configuration information that can determine to send to the TDD subscriber equipment of this evolution all are suitable for the embodiment of the invention.
If according to business demand, definite ascending-descending subframes configuration information that need send to the TDD subscriber equipment of this evolution owing to adopt different ascending-descending subframes configurations at different user devices in the same sub-district, adapts to the business demand of different user devices.
If whether according to needs strengthen the up covering of the TDD subscriber equipment of evolution, definite needs send to the ascending-descending subframes configuration information of the TDD subscriber equipment of this evolution, because by being the up more sub-frame configuration of user equipment allocation of cell edge, make this type of subscriber equipment can use UL subframe bundling mode transmit ascending data, promote up covering, avoid requiring to influence the up-downgoing service resources ratio of whole sub-district, promote resource utilization for the covering of edge small number of users equipment.
In force, the high-level signaling of the user-specific of carrying ascending-descending subframes configuration information has a lot, such as RRC signaling, MAC signaling etc.
Preferably, network side can send the ascending-descending subframes configuration information in the step 501 when the TDD of evolution subscriber equipment and network connect.
Because the demand of the TDD subscriber equipment of evolution might change, so network side can the cycle or by modes such as high level triggerings, redefine the ascending-descending subframes configuration information of the TDD subscriber equipment of evolution, if the ascending-descending subframes configuration information changes, can reconfigure by the high-level signaling of user-specific, such as sending the ascending-descending subframes configuration information by high-level signaling reprovision process.
Except the TDD subscriber equipment of evolution, also have the TDD subscriber equipment of non-evolution in system, the TDD subscriber equipment of these non-evolution need dispose ascending-descending subframes by system broadcasts.Concrete, network side sends the ascending-descending subframes configuration information by system broadcasts, is used to the TDD user device configuration TDD ascending-descending subframes of non-evolution.
Wherein, the TDD subscriber equipment of non-evolution is the subscriber equipment of version before LTE Rel-10 reaches.
Preferably, network side is according to the demand data amount (comprising the business demand amount with network traffic demand and/or D2D) of the TDD subscriber equipment of the TDD subscriber equipment of non-evolution and network communication data demand and/or evolution, determines the ascending-descending subframes configuration information that need send by system broadcasts.
Wherein, network side need send data or receive data on same subframe., communicate according to being handed down to the subscriber equipment ascending-descending subframes configuration information of (comprising the TDD subscriber equipment of evolution and the TDD subscriber equipment of non-evolution) such as network side with subscriber equipment.
Be assigned as the subframe of identical traffic direction for different user devices (be all subscriber equipmenies in the system (or sub-district), comprise the TDD subscriber equipment of non-evolution and the TDD subscriber equipment of evolution), network side adopts identical transmission direction.All is descending sub frame such as subframe A at different subscriber equipmenies, and then the transmission direction network side for subframe A also adopts descending.
Be assigned as the subframe of different transmission directions for different user devices (comprise non-evolution with subscriber equipment evolution), network side is determined to be assigned as the transmission direction of the subframe of different transmission directions at network side for different user devices according to the business demand amount of subscriber equipment.Concrete, network side is according to the business demand amount of each subscriber equipment, and which subscriber equipment service judgement need be preferably, and the subframe direction of employing and this user device configuration is transmitted.
Be assigned as the subframe of different transmission directions for different user devices (comprise non-evolution with subscriber equipment evolution), except the business demand amount according to subscriber equipment is determined transmission direction, can also determine to be assigned as of the transmission direction of the subframe of different transmission directions according to whether the HARQ process of feeding back is arranged in the sub-district at network side for different user devices.If need the ULACK/NACK feedback such as the DLHARQ transmission that one or more subscriber equipmenies are arranged, determine that corresponding one or more feedback subframe is a sub-frame of uplink; Otherwise,, determine that corresponding one or more feedback subframe is a descending sub frame if there is one or more users' UL HARQ transmission to need DL ACK/NACK feedback.
In the step 502, when network equipment passes through TDD radio frame transmission data, can send downlink data, and receive upstream data by PUSCH by PDSCH.
Preferably, when the TDD subscriber equipment of evolution passes through TDD radio frame transmission data, receive data, and send data by the sub-frame of uplink in the TDD radio frames by the descending sub frame in the TDD radio frames.
Concrete, the TDD subscriber equipment of evolution is being assigned as the detection of carrying out descending control signaling PDCCH on the descending sub frame for it; If detecting PDCCH is downlink scheduling, then according to the MCS format receiving data of indicating with downlink scheduling on the frequency domain resource of downlink scheduling indication in the descending sub frame of downlink scheduling indication; If detecting PDCCH is uplink scheduling, then according to the MCS format receiving data of indicating with uplink scheduling on the frequency domain resource of uplink scheduling indication in the descending sub frame of uplink scheduling indication.
In force, if the TDD subscriber equipment of evolution carries out D2D, then can under network controls, carry out D2D.Concrete, network side is after the TDD subscriber equipment of determining two evolution need carry out D2D, select a specific sub-frame, wherein specific sub-frame send for needs data user device configuration be sub-frame of uplink, receive for needs data user device configuration be descending sub frame; The TDD subscriber equipment that network side is dispatched the evolution that needs the transmission data sends data on specific sub-frame, and scheduling needs the TDD subscriber equipment of the evolution of reception data to receive data on specific sub-frame.
Preferably, network side passes through the TDD radio frames when transmitting feedback information, be used on the sub-frame of uplink of receiving feedback information receiving the feedback information that corresponding data receives the HARQ process, and be used to send on the descending sub frame of feedback information and send the feedback information that corresponding data sends the HARQ process.
Wherein, determine that the mode which subframe is used for transmitting feedback information has a lot, enumerates several below.
Feedback information mode one, network side are identified for the sub-frame of uplink of receiving feedback information according to the sequential relationship of the PDSCH HARQ transmission under the specific ascending-descending subframes configuration of stipulating among the Rel-8 TDD with uplink feedback information; And, be identified for sending the descending sub frame of feedback information according to the sequential relationship of the PUSCHHARQ transmission under the specific ascending-descending subframes configuration of stipulating among the Rel-8 TDD with downlink feedback information; Wherein, specific ascending-descending subframes configuration is the ascending-descending subframes configuration by the ascending-descending subframes configuration information correspondence of user-specific high-level signaling transmission.
Feedback information mode two, network side are identified for the sub-frame of uplink of receiving feedback information according to the sequential relationship of the PDSCH HARQ transmission under the specific ascending-descending subframes configuration of stipulating among the Rel-8 TDD with uplink feedback information; Wherein, the sub-frame of uplink that is used for receiving feedback information is that network side passes through sub-frame of uplink set that ascending-descending subframes configuration information that the user-specific high-level signaling sends determines and the subframe of concentrating by the sub-frame of uplink intersection of sets that the ascending-descending subframes configuration information that system broadcasts sends is determined; And, be identified for sending the descending sub frame of feedback information according to the sequential relationship of the PUSCH HARQ transmission under the specific ascending-descending subframes configuration of stipulating among the Rel-8TDD with downlink feedback information; Wherein, the descending sub frame that is identified for sending feedback information is that network side passes through descending sub frame set that ascending-descending subframes configuration information that the user-specific high-level signaling sends determines and the subframe of concentrating by the descending sub frame intersection of sets that the ascending-descending subframes configuration information that system broadcasts sends is determined.Wherein, specific ascending-descending subframes configuration is the ascending-descending subframes configuration by the ascending-descending subframes configuration information correspondence of user-specific high-level signaling transmission.
Subframe during feedback information mode three, network side are gathered the specified upstream subframe is as the sub-frame of uplink that is used for receiving feedback information; Wherein, the set of specified upstream subframe is that transmission direction all is up subframe in any ascending-descending subframes configuration, such as subframe 2 and/or subframe 7; And with the subframe in the set of specific descending sub frame as the descending sub frame that is used to send feedback information; Wherein, the set of specific descending sub frame is that transmission direction all is descending subframe in any ascending-descending subframes configuration, such as subframe 0,1, and at least one in 5 and 6.
As shown in Figure 6, the method for transmission data comprises the following steps: in the embodiment of the invention user equipment side TDD radio frames
The TDD subscriber equipment of step 601, evolution is determined the configuration of TDD ascending-descending subframes according to the ascending-descending subframes configuration information from network side that the high-level signaling by user-specific receives;
The TDD subscriber equipment of step 602, evolution is according to the ascending-descending subframes configuration of determining, by TDD radio frame transmission data.
Preferably, when the TDD subscriber equipment of evolution in the step 602 passes through TDD radio frame transmission data, receive data, and send data by the sub-frame of uplink in the TDD radio frames by the descending sub frame in the TDD radio frames.
Concrete, the TDD subscriber equipment of evolution is being assigned as the detection of carrying out descending control signaling PDCCH on the descending sub frame for it; If detecting PDCCH is downlink scheduling, then according to the MCS format receiving data of indicating with downlink scheduling on the frequency domain resource of downlink scheduling indication in the descending sub frame of downlink scheduling indication; If detecting PDCCH is uplink scheduling, then according to the MCS format receiving data of indicating with uplink scheduling on the frequency domain resource of uplink scheduling indication in the descending sub frame of uplink scheduling indication.
In force, if the TDD subscriber equipment and the network of evolution communicate, then the TDD subscriber equipment of evolution receives downlink data from network side by PDSCH, and sends upstream data by PUSCH to network side.
If the TDD subscriber equipment of evolution carries out D2D, then the TDD subscriber equipment of evolution sends data by sub-frame of uplink to the TDD of other evolution subscriber equipment when carrying out D2D, and by the data of descending sub frame reception from the TDD subscriber equipment of other evolution.
Except under network controls, carrying out D2D, can also under network controls, not carry out D2D, promptly carry out carrying out the D2D transmission on the opposite subframe of transmission direction that two subscriber equipmenies of D2D directly are chosen in the subscriber equipment that carries out D2D.
Preferably, the TDD subscriber equipment of evolution passes through the TDD radio frames when transmitting feedback information, send the feedback information that corresponding data receives the HARQ process on the sub-frame of uplink of feedback information being used to send, and be used for receiving the feedback information that corresponding data sends the HARQ process on the descending sub frame of receiving feedback information.
Wherein, determine that the mode which subframe is used for transmitting feedback information has a lot, enumerates several below.
The TDD subscriber equipment of feedback information mode one, evolution is identified for sending the sub-frame of uplink of feedback information according to the sequential relationship of the PDSCH HARQ transmission under the specific ascending-descending subframes configuration of stipulating among the Rel-8 TDD with uplink feedback information; And, be identified for the descending sub frame of receiving feedback information according to the sequential relationship of the PUSCH HARQ transmission under the specific ascending-descending subframes configuration of stipulating among the Rel-8 TDD with downlink feedback information; Wherein, the configuration of specific ascending-descending subframes is the ascending-descending subframes configuration of the ascending-descending subframes configuration information correspondence received by the user-specific high-level signaling of the TDD subscriber equipment of evolution.
The TDD subscriber equipment of feedback information mode two, evolution is identified for sending the sub-frame of uplink of feedback information according to the sequential relationship of the PDSCH HARQ transmission under the specific ascending-descending subframes configuration of stipulating among the Rel-8 TDD with uplink feedback information; Wherein, the sub-frame of uplink that is used to send feedback information is the sub-frame of uplink set determined of ascending-descending subframes configuration information that the TDD subscriber equipment of evolution is received by the user-specific high-level signaling and the subframe of concentrating by the sub-frame of uplink intersection of sets that the ascending-descending subframes configuration information that system broadcasts is received is determined; And, be identified for the descending sub frame of receiving feedback information according to the sequential relationship of the PUSCHHARQ transmission under the specific ascending-descending subframes configuration of stipulating among the Rel-8 TDD with downlink feedback information; Wherein, the descending sub frame that is used for receiving feedback information is the descending sub frame set determined of ascending-descending subframes configuration information that the TDD subscriber equipment of evolution is received by the user-specific high-level signaling and the subframe of concentrating by the descending sub frame intersection of sets that the ascending-descending subframes configuration information that system broadcasts is received is determined, not the receiving feedback information not of the descending sub frame in this occurs simultaneously.Wherein, the configuration of specific ascending-descending subframes is the ascending-descending subframes configuration of the ascending-descending subframes configuration information correspondence received by the user-specific high-level signaling of the TDD subscriber equipment of evolution.
Subframe during the TDD subscriber equipment of feedback information mode three, evolution is gathered the specified upstream subframe is as the sub-frame of uplink that is used to send feedback information; Wherein, the set of specified upstream subframe is that transmission direction all is up subframe in any ascending-descending subframes configuration, such as subframe 2 and/or subframe 7; And with the subframe in the set of specific descending sub frame as the descending sub frame that is used for receiving feedback information; Wherein, the set of specific descending sub frame is that transmission direction all is descending subframe in any ascending-descending subframes configuration, such as subframe 0,1, and at least one in 5 and 6.
Wherein, Fig. 5 and Fig. 6 can synthesize a flow process, form the method for transmission data in another TDD radio frames, it is first execution in step 501, execution in step 601 again, and step 502 and step 602 do not have inevitable sequential contact, as long as guarantee that step 502 and step 602 are after step 601.
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware embodiment, complete software implementation example or in conjunction with the form of the embodiment of software and hardware aspect.And the present invention can adopt the form that goes up the computer program of implementing in one or more computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.
The present invention is that reference is described according to the flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out by the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device, make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of carrying out on computer or other programmable devices is provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic creative notion of cicada, then can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
Because the invention process is a user device configuration TDD ascending-descending subframes by high-level signaling, thereby has shortened the change cycle, can adapts to business demand and change; And do not need all subscriber equipmenies frequent read system message again all in the sub-district, save power consumption of user equipment.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.