CN103139869A - Uplink and downlink data transmission method and wireless access point - Google Patents
Uplink and downlink data transmission method and wireless access point Download PDFInfo
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Abstract
The invention provides an uplink and downlink data transmission method. The method comprises the following steps that: a wireless access point (WAP) accesses an evolved Node B (eNB) through a Uu link; the WAP establishes uplink and downlink data transmission with the eNB on the Uu link; and the WAP performs uplink and downlink data transmission with low-cost user equipment (LUE) on a Ua link by utilizing a dedicated frequency domain resource allocated by the eNB. Correspondingly, the invention also provides the WAP. According to the uplink and downlink data transmission method and the WAP, the utilization rate of a network spectrum resource is remarkably increased.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of up-downgoing data transmission method and WAP (wireless access point).
Background technology
LTE (Long Term Evolution, Long Term Evolution) adopt OFDM (Orthogonal FrequencyDivision Multiplexing in, OFDM) technology makes the spectrum efficiency of mobile radio communications system be greatly improved.Generally speaking, subscriber equipment (User Equipment, UE) can not use same frequency range at synchronization, data but also receive data had not only been sent, because the antenna that the equipment transmit-receive sharing is identical, if use same frequency range at synchronization, data but also receive data had not only been sent, the data-signal that sends so may be returned by antenna reception again, can't proper communication thereby cause the interior self-interference of UE to cause.Therefore, the mode of LTE system up-downgoing duplex communicates, and for example can adopt frequency division multiplexing (Frequency DivisionDuplex, FDD) or time division multiplexing (Time Division Duplex, TDD).
At M2M (Machine to Machine, machine and machine communication) in application scenarios, subscriber equipment quantity is many, the data volume of transfer of data is less and substantially take transmitting uplink data as main, especially in extensive M2M scene, ability of user terminal is lower, and directly access network can cause the availability of frequency spectrum lower, and can affect the attainable spectrum efficiency of normal LTE subscriber equipment.
Summary of the invention
The embodiment of the present invention provides a kind of up-downgoing data transmission method and system, by increase the transmission of data that WAP (wireless access point) WAP converges low-cost user terminal LUE in network, set up the up-downgoing data communication with evolution base station eNB, improved the utilance of frequency spectrum resource.
According to the first aspect of the embodiment of the present invention, a kind of up-downgoing data transmission method is provided, comprising:
WAP (wireless access point) WAP is by Uu link access evolution base station eNB;
Described WAP is in the up-downgoing transfer of data between foundation and eNB on the Uu link;
Special-purpose frequency domain resource and low-cost subscriber equipment LUE that described WAP utilizes eNB to distribute on the Ua link carry out the up-downgoing transfer of data.
According to the second aspect of the embodiment of the present invention, a kind of WAP (wireless access point) is provided, comprising:
Access unit is used for by Uu link access evolution base station eNB;
The first transmission unit is used in the up-downgoing transfer of data between foundation and eNB on the Uu link;
The second transmission unit, the special-purpose frequency domain resource and the low-cost subscriber equipment LUE that are used for utilizing eNB to distribute on the Ua link carry out the up-downgoing transfer of data.
Implement the embodiment of the present invention, have following beneficial effect: replace low-cost subscriber equipment LUE access eNB by increase WAP (wireless access point) WAP in network, converge the up-downgoing data of LUE, significantly improved the utilance of Internet resources; And the function of WAP compares with eNB greatly and to simplify, and has clear superiority on equipment cost.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or description of the Prior Art, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 illustrates the schematic diagram according to the up-downgoing data transmission method of embodiment of the present invention.
Fig. 2 illustrates the first schematic diagram according to the Uu link of embodiment of the present invention and Ua link duplex mode.
Fig. 3 illustrates the second schematic diagram according to the Uu link of embodiment of the present invention and Ua link duplex mode.
Fig. 4 illustrates the 3rd schematic diagram according to the Uu link of embodiment of the present invention and Ua link duplex mode.
Fig. 5 illustrates the 4th schematic diagram according to the Uu link of embodiment of the present invention and Ua link duplex mode.
Fig. 6 illustrates the structural representation according to the WAP (wireless access point) of embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Referring to Fig. 1, illustrate the schematic diagram according to the up-downgoing data transmission method of embodiment of the present invention, described method comprises:
S100, WAP (wireless access point) WAP is by Uu link access evolution base station eNB;
S102, described WAP is in the up-downgoing transfer of data between foundation and eNB on the Uu link;
Special-purpose frequency domain resource and low-cost subscriber equipment LUE that S104, described WAP utilize eNB to distribute on the Ua link carry out the up-downgoing transfer of data.
In the embodiment of the present invention, the system that uses the up-downgoing data transmission method comprises evolution base station eNB, WAP (wireless access point) (Wireless Access Point, WAP) and low-cost subscriber equipment (Low-cost UserEquipment, LUE).WAP in embodiment of the present invention replaces LUE access eNB, converge the up-downgoing data of LUE, for upstream data, LUE first is sent to WAP with upstream data, then WAP is packaged into a MAC PDU (Media Access Control Protocol DataUnit with the upstream data of a plurality of LUE, media access control protocol data unit) adopt the high order modulation coded system to be sent to eNB after, the data of a plurality of LUE can take identical running time-frequency resource.In high order modulation, the exponent number of modulation is higher, and in the unit interval, the information of transmission is more, and correspondingly, message transmission rate is also just higher.High order modulation in embodiment of the present invention can adopt 16QAM (Quadrature Amplitude Modulation, orthogonal amplitude keying), 64QAM.In some other execution mode of the present invention, can select higher order of modulation, for example 128QAM or 256QAM.It is 56 or 72 etc. that high-order in embodiment of the present invention coding can adopt the bit number that transmits in 1 PRB (Physical Resource Block, Physical Resource Block) on 1ms (millisecond) frequency domain.In embodiment of the present invention, the higher and position of WAP (wireless access point) WAP ability is fixed, and its channel condition is more stable, can select the modulation coding mode of relative high-order, improves message transmission rate.For downlink data, eNB is sent to WAP after the downlink data of a plurality of LUE can being packaged into a MAC PDU, and the data of a plurality of LUE take identical running time-frequency resource, the downlink data decoding that WAP sends eNB, and the data that decoded each LUE is relevant send to each LUE.WAP is the data that LUE converges up-downgoing, replaces LUE access eNB, has significantly improved the utilance of Internet resources.And the coverage of WAP is less, is generally limited to the covering of indoor distances, and transmitting power is less, compare with eNB and can greatly simplify, thereby the cost of WAP compares with eNB and can greatly reduce, and is very suitable for the M2M scene and uses.LUE can be ability lower than the equipment of the common UE of LTE, it is M2M equipment normally.The function that LUE supports is less than common UE, so its cost is lower.Therefore the LUE structure is usually simple than common UE, and power consumption is also lower.This LUE can not possess the function of access eNB, and only can access WAP.The Uu link is the link between WAP and eNB, and UE is by this link access WAP.The Ua link is the link between WAP and subordinate LUE, and WAP passes through this link aggregation from the data of LUE, and issues downlink data to LUE.
WAP (wireless access point) WAP communicates according to Uu air protocol and eNB, and particularly, WAP is according to the possible position scan-synchronized signal of frequency range centered carrier, obtains the down-going synchronous with eNB, receiving control information etc.WAP controls (Radio Resource Control, RRC) dedicated signaling by the Radio Resource between WAP and eNB and obtains the special-purpose frequency domain resource that eNB is the Ua link assignment of WAP and LUE, and wherein special-purpose frequency domain resource comprises bandwidth, frequency domain position etc.The frequency domain resource of Ua link is that LUE is special-purpose, and eNB can not use the common UE of this part frequency domain resource scheduling to LTE, and eNB is the frequency domain resource of Ua link assignment special use, can avoid two interference between link.ENB can also be the distant identical Ua link private resource of WAP configuration, makes these frequency domain resource can be multiplexing between the Ua of different WAP link, thereby improves the utilance of frequency spectrum resource.When WAP and eNB did the up-downgoing transfer of data, WAP was packaged into a MAC PDU with the upstream data of its subordinate LUE and is sent to eNB.After the descending MAC PDU of WAP reception from eNB, this MAC PDU is done parsing, and obtain the downlink data of LUE, and transmit this downlink data to described LUE.The packet of a plurality of LUE can be packetized in a MAC PDU and be uploaded to eNB or packet delivery that WAP can obtain parsing to a plurality of LUE.
WAP can use identical up-downgoing duplex mode, for example FDD or TDD with Uu link and the Ua link between WAP and LUE between eNB.Consider under the M2M scene substantially take uplink service as main, and in existing FDD or TDD proportioning descending sub frame more than sub-frame of uplink, be applied directly to the M2M scene and can cause the wasting of resources, can be the TDD system with the FDD system transition by WAP, become sub-frame of uplink more than the proportioning pattern of descending sub frame more than the proportioning Mode change of sub-frame of uplink the TDD descending sub frame, thereby improve the efficient of transmission system.
Referring to Fig. 2, illustrate according to the Uu link of embodiment of the present invention and the first schematic diagram of Ua link duplex mode, wherein UL represents up link, DL represents down link, Uu link between WAP and eNB adopts FDD, WAP uses the first frequency range f1 to send upstream data (being schematically shown as the transverse axis f arrow vertically upward with respect to WAP in Fig. 2) to eNB, WAP uses the second frequency range f2 reception from the downlink data (being schematically shown as the transverse axis f arrow vertically downward with respect to WAP in Fig. 2) of eNB, wherein, f1 is not equal to f2.Ua link between WAP and LUE also adopts FDD, WAP can use the first frequency range f1 as downlink transfer frequency range (being schematically shown as the transverse axis f arrow vertically downward with respect to LUE in Fig. 2), uses the second frequency range f2 as uplink frequency range (being schematically shown as the transverse axis f arrow vertically upward with respect to LUE in Fig. 2).When WAP uses frequency range f1 to send data by Uu chain road direction eNB, can also use frequency range f1 to send downlink data by Ua chain road direction LUE, in like manner, when WAP uses frequency range f2 to receive the data of eNB transmission by the Uu link, can also use frequency range f2 to receive by the Ua link upstream data that LUE sends.Article two, the data of link are used different orthogonal sub-carriers, guarantee that two interference between link are minimum.
Referring to Fig. 3, illustrate according to the Uu link of embodiment of the present invention and the second schematic diagram of Ua link duplex mode, Uu link between WAP and eNB adopts FDD, WAP use the first subframe in the first frequency range f1 (as in Fig. 3 with respect to subframe corresponding to transverse axis f arrow vertically upward of WAP) send upstream data to eNB, use the second frequency range f2 reception from the downlink data of eNB, wherein, f1 is not equal to f2.Ua link between WAP and LUE adopts TDD, uses the first frequency range f1 to carry out transfer of data.The proportioning of TDD can be decided according to traffic performance, selects the more proportioning of sub-frame of uplink under the M2M scene, and for example the TDD configuration 6.The method that provides according to the embodiment of the present invention, when first subframe of WAP in using the first frequency range f1 sends upstream data to eNB, (in as Fig. 3, the transverse axis of LUE is marked with the subframe of D can to utilize the first subframe in the first frequency range f1 on the Ua link, wherein D represents downlink transfer) send downlink data to LUE, can utilize the second subframe (be marked with the subframe of U as the transverse axis of LUE in Fig. 3, wherein U represents uplink) in the first frequency range f1 to receive upstream data from LUE.The second subframe in embodiment of the present invention is not equal to the first subframe, and the second subframe can be the subframe except the first subframe.Need to prove, being marked with the S subframe at the LUE transverse axis is special subframe (Special Subframe), and the S subframe can comprise three territory: DwPTS (descending pilot frequency time slot), GP (protection interval) and UpPTS (uplink pilot time slot).That adopt due to the Uu link is FDD, and it can not know the existence of special subframe, thus do not transmit the descending of Uu link on this subframe, and in the DwPTS of Ua link transmitting downlink data, the UpPTS transmit ascending data, GP is as the up-downgoing switching time of LUE.
Referring to Fig. 4, illustrate according to the Uu link of embodiment of the present invention and the 3rd schematic diagram of Ua link duplex mode, Uu link between WAP and eNB adopts TDD configuration 2, Ua link between WAP and LUE also adopts TDD, wherein U represents uplink, D represents downlink transfer, WAP can use the first subframe (indicating the subframe of U as the transverse axis of WAP in Fig. 4) to send upstream data to eNB, uses the second subframe (indicating the subframe of D as the transverse axis of WAP in Fig. 4) reception from the downlink data of eNB.Simultaneously, WAP can use described the first subframe (indicating the subframe of D as the transverse axis of LUE in Fig. 4) to send downlink data, uses described the second subframe (indicating the subframe of U as the transverse axis of LUE in Fig. 4) reception from the upstream data of LUE.What the TDD of Ua link adopted can regard new TDD configuration as; its special subframe can adopt corresponding new configuration; particularly; interior UpPTS as the Ua link of the DwPTS subframe time period of Uu link; in like manner; in the UpPTS subframe time period of Uu link, as the DwPTS time period of Ua link, GP is the guard time that switches as up-downgoing.
Referring to Fig. 5, illustrate according to the Uu link of embodiment of the present invention and the 4th schematic diagram of Ua link duplex mode, WAP uses the first frequency range f1 to send upstream data to eNB, use the first subframe in the second frequency range f2 (as in Fig. 5 with respect to the subframe of the transverse axis arrow indication vertically downward of WAP) receive the downlink data from eNB.Ua link between WAP and LUE adopts TDD 6, use the second frequency range f2, according to method provided by the invention, in the downlink data of the first subframe reception from eNB of WAP in using the second frequency range f2, can use the first subframe (being marked with the subframe of U as LUE transverse axis in Fig. 5) in described the second frequency range f2 to receive upstream data from LUE, WAP can use the second subframe (being marked with the subframe of D as LUE transverse axis in Fig. 5) in the second frequency range f2 to send downlink data to LUE.Need to prove, that adopt due to the Uu link is FDD, and it can not know the existence of special subframe, so do not transmit the downlink data of Uu link on this subframe, and in the DwPTS of Ua link transmitting downlink data, the UpPTS transmit ascending data, GP is as the up-downgoing switching time of LUE.
At above-mentioned Fig. 2 to the embodiment shown in Figure 4, the special-purpose frequency domain resource of Ua link can be obtained by the radio resource control RRC dedicated signaling between WAP and eNB, perhaps, can also obtain by the broadcast message of eNB, particularly, by eNB broadcasting, WAP carries out energy measuring on all possible special-purpose frequency domain resource, select a special-purpose frequency domain resource that is not used as the special-purpose frequency domain resource of Ua link, thereby avoid interference.In the above-described embodiment, when WAP moves, the special-purpose frequency domain resource of the Ua link of two WAP was not interfered with each other by originally not disturbing to become, when WAP detects the strong jamming of Ua link, WAP can by all the available Ua links special-purpose frequency domain resource of energy detection scan eNB by the broadcasting of Uu link, select one not have noisy special-purpose frequency domain resource as the new frequency domain private resource of Ua link.
In the embodiment shown in fig. 5, WAP obtains the special-purpose frequency domain resource of the Ua link that eNB clearly indicates by the special RRC signaling between this WAP and eNB, to avoid interference better, this is due in this kind embodiment, eNB sends down control channel always on the individual OFDM symbol of the front N (N＜=3) of the descending sub frame of Uu link, WAP can't determine whether the special-purpose frequency domain resource of Ua link is taken by other WAP with energy measuring.In the present embodiment, WAP can utilize the private downlink frequency domain resource additionally to send the frequency range locking signal on the Ua link, lock this frequency range and access corresponding WAP for LUE, Zadoff-Chu (ZC) sequence that wherein said frequency range locking signal can be regular length, avoid the control domain resource of Uu link during resource mapping, and the synchronizing signal of using in ZC sequence and existing protocol is different, can guarantee that so the common UE of LTE can not access WAP.in the present embodiment, when WAP moves, the special-purpose frequency domain resource of the Ua link of two WAP was not interfered with each other by originally not disturbing to become, when WAP detects the strong jamming of Ua link, WAP is by the up MAC-CE of Uu link (Media Access Control-Control Element, media access control-control unit) dedicated signaling indication eNB strong jamming information, namely indicate the special-purpose frequency domain resource of the Ua link that eNB distributed by the RCC dedicated signaling originally to be in the strong jamming state, then eNB can reshuffle signaling again to the new special-purpose frequency domain resource of WAP distribution by RRC, WAP obtains eNB and reshuffles by RRC the new special-purpose frequency domain resource that signaling is redistributed.
In an embodiment of the present invention, after WAP detects the strong jamming of Ua link and obtains new glitch-free special-purpose frequency domain resource, notify the LUE of this WAP service to carry out the frequency switching, switch on new special-purpose frequency domain resource.Particularly, indicate the new special-purpose frequency domain resource of each LUE of this WAP service by beep-page message, namely send beep-page message to each LUE, carry the position of the new special-purpose frequency domain resource of parameter indication in beep-page message, and come into force in new special-purpose frequency domain resource position, the described predefined time can be system information (System Information, SI) the modification cycle, can be also several times of paging cycle.Need to prove, those skilled in the art can arrange the predefined time according to using needs, the execution mode that the setting of this time is not limited to relate in the present embodiment.Described new special-purpose frequency domain resource can be used for obtaining and the synchronizeing of this WAP by LUE, and with the up-downgoing transfer of data of described WAP.
Alternatively, eNB can pass through locating information, determines the frequency domain resource of multiplexing Ua link between WAP far away, when the resource of Ua link need to change, reshuffles the resource indication of the new Ua link of signaling WAP by RRC; Do not need the WAP optional Ua link of scanning or report disturbed condition.
In the embodiment of the present invention, low-cost subscriber equipment LUE carries out band scan according to all possible positions of special-purpose frequency domain resource of Ua link, obtains the WAP point of LUE access, and obtains and Frequency Synchronization that this WAP is ordered.In the embodiment shown in fig. 5, if the control domain resource that has eNB to send on Ua link private downlink frequency range, LUE can utilize the frequency range locking signal that WAP sends so, accesses the Microcell that this WAP consists of, and obtains the down time-frequency synchronization with this WAP.After LUE is linked into the Microcell of WAP formation, receive the broadcast message of this WAP Microcell of WAP transmission.The coverage of WAP is less, be generally less than 100 meters, the uplink synchronous of LUE and WAP does not need to use TA (Time Alignment, time unifying), and do not need to keep down-going synchronous with WAP, only need WAP and LUE all to keep down-going synchronous to get final product with eNB.The Ua link is cancelled RACH (Random Access Channel, Random Access Channel), each LUE distributes SR (SchedulingRequest, dispatch request) resource, when LUE need to send the ascending resource of upstream data and with no authorized, at first LUE sends the SR request resource, and after receiving the ascending resource of WAP mandate, the ascending resource that recycling is authorized sends upstream data.
WAP sends periodicity ascending resource scheduling parameter or/and the scheduling downlink resource parameter arrives LUE, so that LUE determines ascending resource and the transformat of transmit ascending data according to periodicity ascending resource scheduling parameter, periodically the ascending resource scheduling parameter comprises: ascending resource on time domain dimension, frequency domain dimension the position and the transformat of upstream data; By periodicity ascending resource scheduling parameter is sent to LUE, so that LUE determines ascending resource and the transformat of transmit ascending data according to periodicity ascending resource scheduling parameter, and do not need to detect PDCCH, thus reduced the complexity of scheduling of resource, LUE is economized on electricity more.WAP sends periodicity ascending resource scheduling parameter or/and the scheduling downlink resource parameter arrives LUE by high-rise RRC dedicated signaling; When periodicity ascending resource scheduling parameter or/and scheduling downlink resource parameter when upgrading, by RRC reshuffle that signaling sends the periodicity ascending resource scheduling parameter upgraded or/and the scheduling downlink resource parameter to LUE.
In the embodiment of the present invention, WAP (wireless access point) WAP is at the upstream data that receives the LUE transmission and send the scheduling downlink resource parameter after LUE, WAP feedback joint instructions information is to LUE, joint instructions information comprises uplink retransmission indication and descending indication, whether the uplink retransmission indication is used to indicate has upstream data to need to retransmit, and whether descending indication is used to indicate has downlink data to need transmission.Particularly, uplink retransmission is designated as ACK/NACK, ACK is for confirming (Acknowledgement), i.e. indication does not have upstream data to need to retransmit, the confirmation (Negative Acknowledgement) of NACK for negating, i.e. indication has upstream data to need to retransmit, and a bit represents the ACK/NACK result here, and another bit represents descending indication.If do not have upstream data to need to retransmit, use to other UE the ascending resource scheduling of configuration within this cycle.LUE has determined whether that according to joint instructions information the upstream data needs retransmit and whether have the downlink data needs to transmit.If do not have upstream data need to retransmit and not have downlink data to need transmission, the direct shutter transceiver of LUE, enter sleep state, until the next cycle.If there is upstream data to need to retransmit, after the joint instructions information that receives the WAP feedback, the position according to ascending resource in the ascending resource scheduling parameter on the frequency domain dimension and transformat retransmit upstream data to WAP to LUE.If there is downlink data to need transmission, WAP is feeding back joint instructions information after LUE, sends downlink data to WAP.Particularly, if sent the scheduling downlink resource parameter to LUE, the position of downlink resource on the frequency domain dimension and the transformat transmission downlink data of downlink data determined according to the scheduling downlink resource parameter; If send the scheduling downlink resource parameter to LUE, the mode by PDCCH send downlink resource on the frequency domain dimension position and the transformat of downlink data and send downlink data to LUE.
Referring to Fig. 6, illustrate the structural representation according to the WAP (wireless access point) of embodiment of the present invention, described WAP (wireless access point) 600 can comprise:
The first transmission unit 604 is used in the up-downgoing transfer of data between foundation and eNB on the Uu link;
The second transmission unit 606, the special-purpose frequency domain resource and the low-cost subscriber equipment LUE that are used for utilizing eNB to distribute on the Ua link carry out the up-downgoing transfer of data.
In embodiment of the present invention, the access unit of WAP (wireless access point) WAP communicates according to Uu air protocol and eNB, by Uu link access evolution base station eNB.WAP in embodiment of the present invention replaces LUE access eNB, converges the up-downgoing data of LUE.LUE can be ability lower than the equipment of common UE, it is M2M equipment normally.The function that LUE supports is less than common UE, and cost is lower.Therefore the LUE structure is usually simple than common UE, and power consumption is also lower.This LUE can not possess the function of access eNB, and only can access WAP.
In the embodiment shown in Figure 2, Ua link and Uu link all adopt FDD, and the first transmission unit of WAP (wireless access point) WAP uses the first frequency range f1 to send upstream data to eNB, use the second frequency range f2 reception from the downlink data of eNB.In the present embodiment, when the first transmission unit used the first frequency range f1 to send upstream data to eNB, the second transmission unit can use described the first frequency range f1 to send downlink data to LUE; When the first transmission unit used the downlink data of the second frequency range f2 reception from eNB, the second transmission unit can use the second frequency range f reception from the upstream data of LUE.
In the embodiment shown in fig. 3, the Uu link adopts FDD, and the Ua link adopts TDD 6, uses the first frequency range.The first transmission unit uses the first subframe of the first frequency range f1 to send upstream data to eNB, uses the second frequency range f2 reception from the downlink data of eNB.In the present embodiment, when the first transmission unit used the first subframe of the first frequency range f1 to send upstream data to eNB, the second transmission unit can use the first subframe of the first frequency range f1 to send downlink data to LUE.The second transmission unit can use in the first frequency range f1 the second subframe to receive upstream data from LUE, and wherein the second subframe is different from the first subframe, can be the subframe except the first subframe.
In the embodiment shown in fig. 4, Uu link and Ua link all adopt TDD, and the Uu link adopts TDD2.In the present embodiment, the first transmission unit uses the first subframe to send upstream data to eNB, uses the second subframe reception from the downlink data of eNB, and wherein the second subframe is not equal to the first subframe, can be the subframe except the first subframe.In the present embodiment, when the first transmission unit used the first subframe to send upstream data to eNB, the second transmission unit can use the first subframe to send downlink data to LUE; When the first transmission unit used the downlink data of the second subframe reception from eNB, the second transmission unit can use the second subframe reception from the upstream data of LUE.
Referring to Fig. 5, the Uu link adopts FDD, and the Ua link adopts TDD 6, uses the second frequency range f2.The first transmission unit uses the first frequency range f1 to send upstream data to eNB, and the first subframe in use the second frequency range f2 receives the downlink data from eNB.In the present embodiment, when the first subframe in first transmission unit use the second frequency range f2 receives from the downlink data of eNB, the second transmission unit can use the first subframe in the second frequency range f2 to receive upstream data from LUE, and second transmission unit can use the second subframe in the second frequency range f2 to send downlink data to LUE, wherein the second subframe is not equal to the first subframe, can be the subframe except the first subframe.
WAP in embodiment of the present invention is except comprising said units, can also comprise the private resource acquiring unit, the private resource acquisition module is controlled the RRC signaling by the dedicated radio resources between WAP and eNB and is obtained special-purpose frequency domain resource, perhaps, can also obtain special-purpose frequency domain resource by the broadcast message of eNB, particularly, carry out energy measuring on all possible special-purpose frequency domain resource of eNB broadcasting, select a special-purpose frequency domain resource that is not used as the special-purpose frequency domain resource of Ua link.
Further, the WAP of embodiment of the present invention can also comprise the interference indicating member, when the special-purpose frequency domain resource that the Ua link detected at WAP is in disturbance state, disturb indicating member by being in disturbed state by media access control-its original special-purpose frequency domain resource of distributing of control unit MAC-CE dedicated signaling indication eNB.ENB will redistribute new special-purpose frequency domain resource after receiving the indication information that disturbs indicating member.Private resource acquiring unit in present embodiment can obtain eNB and reshuffle by RRC the new special-purpose frequency domain resource that signaling is redistributed.
Private resource acquiring unit in embodiment of the present invention, after getting new special-purpose frequency domain resource, by beep-page message to the new special-purpose frequency domain resource of described LUE indication, new special-purpose frequency domain resource can be used for by the LUE that this WAP serves obtaining with this WAP synchronize and with the up-downgoing transfer of data of described WAP.
WAP in embodiment of the present invention can also comprise the locking indicating member, and the locking indicating member sends the frequency range locking signal to the LUE of this WAP service, and described frequency range locking signal can be used for the described LUE described special-purpose frequency domain resource of locking and access this WAP.Zadoff-Chu (ZC) sequence that described frequency range locking signal can be regular length, avoid the control domain resource of Uu link during resource mapping, and the synchronizing signal of using in ZC sequence and existing protocol is different, can guarantee that so the common UE of LTE can not access WAP.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in above-described embodiment method, to come the relevant hardware of instruction to complete by computer program, described program can be stored in a computer read/write memory medium, this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc.
Above disclosed is only a kind of preferred embodiment of the present invention, certainly can not limit with this interest field of the present invention, and the equivalent variations of therefore doing according to claim of the present invention still belongs to the scope that the present invention is contained.
Claims (18)
1. a up-downgoing data transmission method, is characterized in that, described method comprises:
WAP (wireless access point) WAP is by Uu link access evolution base station eNB;
Described WAP is in the up-downgoing transfer of data between foundation and eNB on the Uu link;
Special-purpose frequency domain resource and low-cost subscriber equipment LUE that described WAP utilizes eNB to distribute on the Ua link carry out the up-downgoing transfer of data.
2. the method for claim 1, is characterized in that, described WAP comprises in the up-downgoing transfer of data between foundation and eNB on the Uu link:
Described WAP uses the first frequency range to send upstream data to eNB, uses the second frequency range reception from the downlink data of eNB;
Described WAP utilizes special-purpose frequency domain resource that eNB distributes and low-cost subscriber equipment LUE to carry out the up-downgoing transfer of data on the Ua link to comprise:
Described WAP uses described the first frequency range to send downlink data to LUE, uses described the second frequency range reception from the upstream data of LUE.
3. the method for claim 1, is characterized in that, described WAP comprises in the up-downgoing transfer of data between foundation and eNB on the Uu link:
Described WAP uses the first subframe in the first frequency range to send upstream data to eNB, uses the second frequency range reception from the downlink data of eNB;
Described WAP utilizes special-purpose frequency domain resource that eNB distributes and low-cost subscriber equipment LUE to carry out the up-downgoing transfer of data on the Ua link to comprise:
The first subframe described WAP utilizes the first frequency range on this Ua link in sends downlink data to LUE, utilizes the second subframe in the first frequency range to receive upstream data from LUE.
4. the method for claim 1, is characterized in that, described WAP comprises in the up-downgoing transfer of data between foundation and eNB on the Uu link:
Described WAP uses the first subframe to send upstream data to eNB, uses the second subframe reception from the downlink data of eNB;
Described WAP utilizes special-purpose frequency domain resource that eNB distributes and low-cost subscriber equipment LUE to carry out the up-downgoing transfer of data on the Ua link to comprise:
Described WAP uses described the first subframe to send downlink data to LUE, uses described the second subframe reception from the upstream data of LUE.
5. the method for claim 1, is characterized in that, described WAP comprises in the up-downgoing transfer of data between foundation and eNB on the Uu link:
Described WAP uses the first frequency range to send upstream data to eNB, and the first subframe in use the second frequency range receives the downlink data from eNB;
Described WAP utilizes special-purpose frequency domain resource that eNB distributes and low-cost subscriber equipment LUE to carry out the up-downgoing transfer of data on the Ua link to comprise:
Described WAP uses the second subframe in the second frequency range to send downlink data to LUE, uses the first subframe reception in described the second frequency range from the upstream data of LUE.
6. method as described in claim 1 to 5 any one, is characterized in that, also comprises:
Described WAP controls the RRC signaling by the dedicated radio resources between this WAP and eNB and obtains described special-purpose frequency domain resource, perhaps, obtains described special-purpose frequency domain resource by the broadcast message of eNB.
7. method as described in any one in claim 1 to 6, is characterized in that, also comprises:
Described WAP is in disturbed state by media access control-described special-purpose frequency domain resource of control unit MAC-CE dedicated signaling indication eNB;
Described WAP obtains described eNB and reshuffles by RRC the new special-purpose frequency domain resource that signaling is redistributed.
8. method as claimed in claim 7, is characterized in that, also comprises:
Described WAP by beep-page message to the new special-purpose frequency domain resource of described LUE indication, described new special-purpose frequency domain resource by described LUE be used for obtaining with this WAP synchronize and with the up-downgoing transfer of data of described WAP.
9. method as described in any one in claim 1 to 8, is characterized in that, described method also comprises:
Described WAP sends the frequency range locking signal to described LUE, is used to indicate the described LUE described special-purpose frequency domain resource of locking and accesses this WAP.
10. a WAP (wireless access point) WAP, is characterized in that, comprising:
Access unit is used for by Uu link access evolution base station eNB;
The first transmission unit is used in the up-downgoing transfer of data between foundation and eNB on the Uu link;
The second transmission unit, the special-purpose frequency domain resource and the low-cost subscriber equipment LUE that are used for utilizing eNB to distribute on the Ua link carry out the up-downgoing transfer of data.
11. WAP as claimed in claim 10 is characterized in that, described the first transmission unit is used for using the first frequency range to send upstream data to eNB, uses the second frequency range reception from the downlink data of eNB;
Described the second transmission unit is used for using described the first frequency range to send downlink data to LUE, uses described the second frequency range reception from the upstream data of LUE.
12. WAP as claimed in claim 10 is characterized in that, described the first transmission unit is used for using the first subframe of the first frequency range to send upstream data to eNB, uses the second frequency range reception from the downlink data of eNB;
Described the second transmission unit is used for utilizing the first subframe of the first frequency range to send downlink data to LUE on this Ua link, utilizes the second subframe in the first frequency range to receive upstream data from LUE.
13. WAP as claimed in claim 10 is characterized in that, described the first transmission unit is used for using the first subframe to send upstream data to eNB, uses the second subframe reception from the downlink data of eNB;
Described the second transmission unit is used for using described the first subframe to send downlink data to LUE, uses described the second subframe reception from the upstream data of LUE.
14. WAP as claimed in claim 10 is characterized in that, described the first transmission unit is used for using the first frequency range to send upstream data to eNB, and the first subframe in use the second frequency range receives the downlink data from eNB;
Described the second transmission unit be used for to use the second subframe of the second frequency range to send downlink data to LUE, uses the first subframe reception in described the second frequency range from the upstream data of LUE.
15. WAP as described in claim 10 to 14 any one is characterized in that, also comprises:
The private resource acquiring unit is used for controlling the RRC signaling by the dedicated radio resources between this WAP and eNB and obtains described special-purpose frequency domain resource, perhaps, obtains described special-purpose frequency domain resource by the broadcast message of eNB.
16. WAP as described in any one in claim 11 to 15 is characterized in that, also comprises:
Disturb indicating member, be used for being in disturbed state by media access control-described special-purpose frequency domain resource of control unit MAC-CE dedicated signaling indication eNB;
The private resource acquiring unit is used for obtaining described eNB and reshuffles by RRC the new special-purpose frequency domain resource that signaling is redistributed.
17. WAP as claimed in claim 16, it is characterized in that, described private resource acquiring unit, also be used for by beep-page message to the new special-purpose frequency domain resource of described LUE indication, described new special-purpose frequency domain resource by described LUE be used for obtaining with this WAP synchronize and with the up-downgoing transfer of data of described WAP.
18. WAP as described in any one in claim 10 to 17 is characterized in that, also comprises:
The locking indicating member is used for sending the frequency range locking signal to described LUE, is used to indicate the described LUE described special-purpose frequency domain resource of locking and accesses this WAP.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110377894.2A CN103139869B (en) | 2011-11-24 | 2011-11-24 | A kind of up-downgoing data transmission method and WAP (wireless access point) |
| PCT/CN2012/085219 WO2013075665A1 (en) | 2011-11-24 | 2012-11-24 | Up/downlink data transmission method and wireless access point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110377894.2A CN103139869B (en) | 2011-11-24 | 2011-11-24 | A kind of up-downgoing data transmission method and WAP (wireless access point) |
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| CN103139869A true CN103139869A (en) | 2013-06-05 |
| CN103139869B CN103139869B (en) | 2015-07-29 |
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| CN201110377894.2A Expired - Fee Related CN103139869B (en) | 2011-11-24 | 2011-11-24 | A kind of up-downgoing data transmission method and WAP (wireless access point) |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110061771A (en) * | 2018-09-25 | 2019-07-26 | 中国信息通信研究院 | A kind of relay communication method and system |
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| US9167453B2 (en) | 2013-11-25 | 2015-10-20 | At&T Intellectual Property I, L.P. | Cell and evolved node B station outage restoration tool |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101237685A (en) * | 2007-01-30 | 2008-08-06 | 西门子通信技术（北京）有限公司 | Route changing method in wireless communication |
| WO2011020922A1 (en) * | 2009-08-21 | 2011-02-24 | Telefonaktiebolaget L M Ericsson (Publ) | Controlling a transmission of information in a wireless communication network with a relay node |
-
2011
- 2011-11-24 CN CN201110377894.2A patent/CN103139869B/en not_active Expired - Fee Related
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101237685A (en) * | 2007-01-30 | 2008-08-06 | 西门子通信技术（北京）有限公司 | Route changing method in wireless communication |
| WO2011020922A1 (en) * | 2009-08-21 | 2011-02-24 | Telefonaktiebolaget L M Ericsson (Publ) | Controlling a transmission of information in a wireless communication network with a relay node |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110061771A (en) * | 2018-09-25 | 2019-07-26 | 中国信息通信研究院 | A kind of relay communication method and system |
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| WO2013075665A1 (en) | 2013-05-30 |
| CN103139869B (en) | 2015-07-29 |
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