CN101908955A - Downlink information transmission method and device of return link - Google Patents
Downlink information transmission method and device of return link Download PDFInfo
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- CN101908955A CN101908955A CN2009100865369A CN200910086536A CN101908955A CN 101908955 A CN101908955 A CN 101908955A CN 2009100865369 A CN2009100865369 A CN 2009100865369A CN 200910086536 A CN200910086536 A CN 200910086536A CN 101908955 A CN101908955 A CN 101908955A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
- H04W16/12—Fixed resource partitioning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
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Abstract
The invention discloses downlink information transmission method and device of a return link. The transmission method comprises the following steps of: determining a first area by an evolution base station, wherein the first area is used for transmitting downlink information to a relay node and/or a user device for supporting a 3GPP (The 3rd Generation Partnership Project) version 10 on the return link and comprises a relay physical downlink control channel area and a relay physical hybrid automatic repeat request (HARQ) indication channel area; notifying resource configuration information of the first area to the relay node and/or the user device for supporting the 3GPP version 10 through the evolution base station; and in the downlink return link, transmitting downlink information to the relay node and/or the user device for supporting the 3GPP version 10 in the first area through the evolution base station. The invention solves the problem that an LTE-A (Long Term Evolution-Advanced) system does not have an optimization design scheme related to control area and data area multiplexing on the return link, and provides a technical scheme which is used for a semi-static configuration control area of a downlink signal of the return link.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of back haul link downlink information transmission method and equipment.
Background technology
(LTE-Advanced, LTE-A) the system's service quality and Extended Cell that will adopt the method for relaying (Relay) cooperation transmission to improve Cell Edge User covers at 3GPP advanced person's Long Term Evolution.In the relay transmission of LTE-A system, frame structure can be divided descending access zone, down mixing regional, up access zone and four zones, up Mixed Zone.Referring to shown in Figure 1, in descending access zone, evolution base station (eNB) and via node equipment (RN) send data to grand user terminal (Macro UE) and trunk subscriber equipment (Relay UE) respectively; In the down mixing zone, eNB sends data to RN and Macro UE; In up access zone, Macro UE and Relay UE send data to eNB and RN respectively; In up Mixed Zone, Macro UE and RN send data to eNB.
Need to prove, and Long Term Evolution (Long Term Evolution, LTE) system supports Rel-8UE, is called for short R8UE, the LTE-A system also will support Rel-10UE, be called for short R10UE.
In the LTE-A system, in order to make the Relay network can compatible R8UE, promptly keep Relay UE identical frame structure to be arranged with Macro UE, just some subframe does not send or receives, adopted the mode of Multicast Broadcast Single Frequency Network (MBSFN) subframe to realize the transfer of data of repeated link, this scheme is as follows:
In up Mixed Zone, promptly RN is when eNB sends data, and Relay UE mourns in silence and promptly do not transmit any upward signal;
In the down mixing zone, be that eNB is when RN sends data, the frame structure of Relay is configured to the MBSFN subframe, the downgoing control signal zone that promptly has 1 or 2 OFDM symbol, be used for Relay and send downgoing control signal to the UE of its service, (Relay can not receive and come from signal of base station this moment, and Relay receives the repeated link data that send the base station after this, and at this moment Relay does not send data to the UE of its service.
In present LTE-A system design, consider that in the down mixing zone base station transmits is in the same place for the repeated link data of Relay and control signal multiplex, transmits by the data area of MBSFN subframe.But, but do not provide the specific implementation of how in downlink relay link, to carry out the signal transmission by multiplexing MBSFN subframe.
Further, the division introduction of link:
RN (Relay Node, via node) introducing makes the Radio Link based on the mobile communication system of Relay (relaying) have three: the direct projection link (direct link) between eNB (evolution base station) and the macro UE (subscriber equipment that the base station is directly served), access link (access link) between back haul link (backhaul link) between eNB (evolution base station) and the RN (via node) and RN (via node) and the relay UE (subscriber equipment of via node service), therefore consider the signal interference-limited of radio communication, three links need use the Radio Resource of quadrature.Because the transceiver of via node is TDD (Time Division Duplex, time division duplex) mode of operation, the backhaul link is to take different time slots in the tdd frame structure with the access link, and direct link and backhaul link are can be coexistent, as long as its running time-frequency resource quadrature.
The deficiencies in the prior art are: in LTE-A (Long Term Evolution-Advance, long-term evolution upgrading) system, data on the back haul link and the multiplex transmission method of controlling signaling are not also formed solution.
Summary of the invention
The invention provides a kind of back haul link downlink information transmission method and equipment, in order to solve in the LTE-A system also not problem to the multiplexing optimizing design scheme in control area on the back haul link and data area.
The embodiment of the invention provides a kind of back haul link downlink information transmission method, comprises the steps:
Evolution base station eNB is identified for sending to the subscriber equipment R10UE of via node RN and/or support 3GPP version 10 first area of downlink information on back haul link, described first area comprises: relaying Physical Downlink Control Channel R-PDCCH zone and the automatic repeat requests HARQ indicating channel of relaying physical mixed R-PHICH zone;
In descending back haul link, eNB sends downlink information in the first area to RN and/or R10UE.
The invention process also provides a kind of back haul link downlink information transmission method, comprises the steps:
Via node RN is before its subordinate's subscriber equipment of service R-UE, receive the first area resource allocation information that eNB sends, described first area comprises: relaying Physical Downlink Control Channel R-PDCCH zone and the automatic repeat requests HARQ indicating channel of relaying physical mixed R-PHICH zone;
Described RN receives the downlink information that eNB sends according to the first area resource allocation information in the first area.
The embodiment of the invention provides a kind of base station, comprising:
The zone determination module, be used to be identified for sending to the subscriber equipment R10UE of via node RN and/or support 3GPP version 10 on back haul link the first area of downlink information, described first area comprises: relaying Physical Downlink Control Channel R-PDCCH zone and the automatic repeat requests HARQ indicating channel of relaying physical mixed R-PHICH zone;
Notification module is used for described first area resource allocation information is notified to RN and/or R10UE;
Sending module is used at descending back haul link, sends downlink information in the first area to RN and/or R10UE.
The embodiment of the invention provides a kind of back haul link downlink information transmission equipment, comprising:
The configuration information receiver module, be used at via node RN before its subordinate's subscriber equipment of service R-UE, receive the first area resource allocation information that eNB sends, described first area comprises: relaying Physical Downlink Control Channel R-PDCCH zone and the automatic repeat requests HARQ indicating channel of relaying physical mixed R-PHICH zone;
The downlink information receiver module is used for receiving the downlink information that eNB sends in the first area according to the first area resource allocation information.
The method for transmitting signals of the downlink relay link of the embodiment of the invention makes the grand UE of via node equipment and R10 can utilize all physical resources to carry out downlink data transmission fully, and has guaranteed the compatibility to R8 user.
Further, in the invention process, evolution base station eNB is identified for sending to the subscriber equipment R10UE of via node RN and/or support 3GPP version 10 first area of downlink information on back haul link; ENB is notified to RN and/or R10UE with described first area resource allocation information; In downlink relay link, the evolution base station first area sends downlink information to RN and/or R10UE, and the first area comprises: relaying Physical Downlink Control Channel R-PDCCH zone and the automatic repeat requests HARQ indicating channel of relaying physical mixed R-PHICH zone.Because eNB can at first notify the zone that sends downlink information on the back haul link, therefore no longer need to carry out dynamic-configuration by the indication of R-PCFICH, not only solved in the LTE-A system also not problem, also provided the technical scheme of the semi-static configuration control area of the downstream signal that is used for back haul link the multiplexing optimizing design scheme in control area on the back haul link and data area.
Description of drawings
Fig. 1 is used for Relay frame structure schematic diagram for MBSFN subframe in the prior art;
Fig. 2 is the frame structure schematic diagram of the descending sub frame of downlink relay link in the embodiment of the invention;
Fig. 3 is the schematic flow sheet that via node equipment receives the downlink data of evolution base station transmission in the embodiment of the invention;
Fig. 4 is a kind of schematic flow sheet that the grand user terminal of R10 receives the downgoing control signal of evolution base station transmission in the embodiment of the invention;
Fig. 5 is the another kind of schematic flow sheet that the grand user terminal of R10 receives the downgoing control signal of evolution base station transmission in the embodiment of the invention;
Fig. 6 utilizes the MBSFN subframe to carry out repeated link downlink transfer schematic diagram in the embodiment of the invention;
Fig. 7 is the transmission schematic diagram of MBSFN subframe in the embodiment of the invention;
Fig. 8 is a back haul link downlink information transmission method implementing procedure schematic diagram in the embodiment of the invention;
Fig. 9 is the control and the data area reuse plan schematic diagram of back haul link in the embodiment of the invention;
Figure 10 is the control and the data area FDM mode reuse plan schematic diagram of back haul link in the embodiment of the invention;
Figure 11 is the control and the data area TDM mode reuse plan schematic diagram of back haul link in the embodiment of the invention;
Figure 12 is the control and the data area FDM+TDM mode reuse plan schematic diagram of back haul link in the embodiment of the invention;
Figure 13 is a back haul link downlink information transmission method implementing procedure schematic diagram in the embodiment of the invention;
Figure 14 is an architecture of base station schematic diagram in the embodiment of the invention;
Figure 15 is a back haul link downlink information transmission equipment structural representation in the embodiment of the invention.
Embodiment
In embodiments of the present invention, referring to shown in Figure 2, in downlink relay link, the descending sub frame that evolution base station sends comprises first control signaling area and the data area, the described first control signaling area is for being used to transmit PCFICH, the zone of PDCCH and PHICH, described data area comprises special area and conventional PDSCH zone on frequency domain, described special area comprises the second control signaling area according to time division way, specific physical DSCH Downlink Shared Channel PDSCH zone, the width on frequency domain of described special area shown in Fig. 2 is M PRB, wherein, the PRB number of 0＜=M＜=downlink system bandwidth.The time span in special PDSCH zone is a 14-K OFDM symbol.
Shown in Fig. 2, the first control signaling area comprises PCFICH, PDCCH, PHICH zone, and this is same as the prior art, but described PHICH zone can be used to transmit the uplink retransmission indication at grand user terminal of R8 and/or the grand user terminal of R10.The first control signaling area takies the individual OFDM symbol of K (K=1,2,3).Top n OFDM symbol in special area is the second control signaling area.Wherein, the mark A among Fig. 2 can be arranged in the optional position in PDCCH and PHICH zone, is illustrated in this band of position and can transmits the control signaling of transmission at the grand user terminal of R8.Mark B among Fig. 2 can be arranged in the optional position in PDCCH and PHICH zone, is illustrated in the shared frequency location of this zone transmission special area.
The described second control signaling area is used to transmit the downgoing control signal that the base station sends to via node equipment, or, the downgoing control signal that the transmission evolution base station sends to the grand user terminal of R10.The described second control signaling area comprises that transmission is at the Physical Control Format Indicator Channel (R-PCFICH) of relaying, Physical Downlink Control Channel (R-PDCCH) and at the zone of the automatic request retransmission indicating channel of the physical mixed of relaying (R-PHICH).Wherein, R-PCFICH takies on second first OFDM symbol of controlling in the signaling area, be used to transmit R-PDCCH and the shared symbolic number indication information of R-PHICH, promptly indicate the length N (N is the integer of 0＜=N＜=14-K) of this control signaling area, the symbolic number that promptly takies.R-PCFICH takies the part frequency domain resource of the second control area start-up portion, the time span of the second control signaling area is N, the time span in R-PDCCH and R-PHICH zone is N, mark C among Fig. 2 can be positioned at the optional position in R-PDCCH and R-PHICH zone, be used to indicate the region of base station to the downgoing control signal of via node equipment or the grand user terminal transmission of R10, this zone can be special PDSCH zone and/or conventional PDSCH zone.Described R-PHICH is used to transmit the uplink retransmission indication information at relaying.
Described special PDSCH zone is used to transmit the downlink data signal that evolution base station sends to via node equipment, or, the downlink data signal that the transmission evolution base station sends to the grand user terminal of R10.Shown in Fig. 2, the time span in special PDSCH zone is 14-K-N OFDM symbol (is example with conventional CP).Special PDSCH zone width on frequency domain is M PRB, wherein, the PRB number of 0＜=M＜=downlink system bandwidth, this M PRB can be continuous, also can be discontinuous.With conventional CP is example, and 1 subframe (1ms) comprises 14 OFDM symbols.
Described conventional PDSCH zone is used for transmitting one or more of downlink data signal that downlink data signal that downlink data signal that evolution base station sends to the grand user terminal of R10, transmission evolution base station send to the grand user terminal of R8 and transmission evolution base station send to via node equipment.Described conventional PDSCH length zone time is 14-K OFDM symbol.
Need to prove that to the grand user terminal transmitting downlink data of R8, the corresponding downstream control signal is in the transmission of PDCCH/PHICH zone in conventional PDSCH zone, therefore, the grand user terminal of R8 is not known the existence of special area.
Described special PDSCH zone and the described second control signaling area can take identical or different frequency domain position.Described special PDSCH zone also can take continuous or discrete frequency domain resource, and the described second control signaling area also can take continuous or discrete frequency domain resource.
Can realize in the following way sending downlink data to the grand user terminal of via node equipment, the grand user terminal of R8 and R10:
In order to realize correct downlink data receiving, the frequency domain position in special PDSCH zone need be notified to grand user terminal of R10 and via node equipment, can or realize prenoticing the frequency domain position in special PDSCH zone at the exclusive high-level signaling of via node equipment or the grand user terminal of R10 by system broadcasts, and the base station can be according to current resource situation, the PRB number and the position of the frequency domain resource that the change special area takies in system.
Such as: a kind of mode is the method for semi-static configuration, the frequency domain information that special area is taken just, it is shared M PRB frequency domain position in system, be notified to via node equipment and R10 user terminal, when the base station changed according to current resource situation needs, the frequency domain information that the special area that changes can be taken was notified to grand user terminal of R10 and via node equipment once more.Another kind of mode is to adopt by the dynamic dispatching signaling method to notify the frequency domain position in special PDSCH zone to give the R10 user terminal, it is the frequency domain information that the base station takies special area, be that the shared M of a special area PRB is notified to the R10 user terminal at the frequency domain position of system by dispatch, simultaneously this information is prenoticed to via node equipment, when the base station changed according to current resource situation needs, the frequency domain information that the special area that changes can be taken was notified to via node equipment once more.
If adopt the grand user terminal of frequency domain position notice R10 of notifying special PDSCH zone by the dynamic dispatching signaling method, then can utilize the resource allocation territory in the dispatch of described PDCCH transmission can indicate the shared frequency domain position in special PDSCH zone, utilize the shared symbolic number of described R-PCFICH transmission R-PDCCH, the dispatch of described R-PDCCH transmission is used to indicate the downlink data position of evolution base station to the grand user terminal transmission of R10.
Fig. 3 and embodiment illustrated in fig. 4 for above-mentioned first kind of embodiment that mode is notified.
And, in embodiment illustrated in fig. 3, in order to make via node equipment correctly receive the downlink data that evolution base station sends, the part frequency domain resource that described R-PCFICH can take first OFDM symbol in the described second control signaling area sends dispatch, be used to transmit R-PDCCH and the shared symbolic number indication information of R-PHICH, promptly be used to indicate the length of the second control signaling area; The dispatch of described R-PDCCH transmission is used to indicate the downlink data position of evolution base station transmission, and described R-PHICH is used to transmit the re-transmission indication at relaying.
Like this, evolution base station can also can transmit in special PDSCH zone in conventional PDSCH zone transmission to the downlink data that via node equipment sends, and the corresponding downstream control signal is in R-PCFICH, R-PDCCH or the transmission of R-PHICH zone.
Therefore, referring to shown in Figure 3, the process of the downlink data that via node equipment reception evolution base station sends is as follows:
Step 301: the frequency domain position according to the special PDSCH zone that obtains in advance detects R-PCFICH, obtains R-PDCCH and the shared symbolic number of R-PHICH;
Step 302: via node equipment obtains the position and the size in R-PDCCH zone according to described symbolic number, and in the R-PDCCH zone, detect dispatch acquisition evolution base station to the downlink data position that via node equipment sends, described downlink data position is special PDSCH zone and/or conventional PDSCH zone;
Step 303: receive the downlink data that evolution base station sends according to the downlink data position that obtains.
In embodiment illustrated in fig. 4, in order to make the grand user terminal of R10 correctly receive the downlink data that evolution base station sends, the dispatch of described PDCCH transmission can also be used to indicate the downlink data position of evolution base station to the grand user terminal transmission of R10, described R-PCFICH is used to transmit the shared symbolic number of R-PDCCH, and the dispatch of described R-PDCCH transmission can be used to indicate the downlink data signal position of evolution base station to the grand user terminal transmission of R10.
Like this, evolution base station can also can transmit in conventional PDSCH zone in special PDSCH zone to the downlink data that the grand user terminal of R10 sends, and the corresponding downstream control signal sends in the PDCCH zone and the second control signaling area.
Here, needs are notified to the grand user terminal of R10 with the frequency domain position in special PDSCH zone in advance, and the frequency domain position of the frequency domain position in special PDSCH zone and the second control signaling area is identical.
Referring to shown in Figure 4, the downgoing control signal that the grand user terminal of R10 receives the evolution base station transmission may further comprise the steps:
The grand user terminal of step 401:R10 detects dispatch in PDCCH zone, detect at R-PCFICH according to the frequency domain position in the special PDSCH zone that obtains in advance and obtain the shared symbolic number of transmission R-PDCCH;
The grand user terminal of step 402:R10 obtains the position and the size in R-PDCCH zone according to the shared symbolic number of transmission R-PDCCH, and in the R-PDCCH zone, detect dispatch, according to detecting the dispatch that obtains in dispatch that obtains in the detection of PDCCH zone and/or the R-PDCCH zone, obtain evolution base station to the downlink data position that the grand user terminal of R10 sends, described downlink data position is special PDSCH zone and/or conventional PDSCH zone;
Step 403: receive the downlink data that evolution base station sends according to the downlink data position that obtains.
Referring to shown in Figure 5, the downgoing control signal that the grand user terminal of R10 receives the evolution base station transmission may further comprise the steps:
The grand user terminal of step 501:R10 resource allocation territory in the detected dispatch in the PDCCH zone obtains the shared frequency domain position information in special PDSCH zone, utilizes described frequency domain position information to detect R-PCFICH and obtains the shared symbolic number of transmission R-PDCCH;
The grand user terminal of step 502:R10 obtains the position and the size in R-PDCCH zone according to the shared symbolic number of transmission R-PDCCH, and detects dispatch in the R-PDCCH zone; According in the R-PDCCH zone, detecting the dispatch that obtains, obtain evolution base station to the downlink data position that the grand user terminal of R10 sends, described downlink data position is special in PDSCH zone and/or conventional PDSCH zone;
Step 503: receive the downlink data that evolution base station sends according to the downlink data position that obtains.
Further, the inventor is also noted that in the invention process:
In the design process of up-downgoing backhaul link, for in-band relay (relaying in the band), the backhaul link adopts identical frequency spectrum with the access link.Because the Relay transmitter has interference (unless can provide enough isolation to the signal of turnover to the receiver of oneself, for example particular design, independence and isolate good antenna structure), therefore descending backhaul link is unsuitable for existence simultaneously on same frequency resource with descending access link.Similarly, up access and up backhaul link also are unsuitable for existing simultaneously.
A kind of method of possible processing interference problem is: RN promptly creates " gaps " (at interval) in the transmission time at descending access not sending to terminal when eNB receives data.Can pass through MBSFN (MBSFNMulticast Broadcast Single Frequency Network, Multicast Broadcast Single Frequency Network) mode of subframe is created " gaps ", Fig. 6 carries out repeated link downlink transfer schematic diagram for utilizing the MBSFN subframe, as shown in Figure 6.In these " gaps ", terminal comprises R8UE (supporting the UE of 3GPP version 8), can not expect to exist any Relay to send.Up backhaul transmission can utilize some limiting terminals to realize to the subframe that RN sends.Ctrl is the control area among the figure.
Fig. 7 is the transmission schematic diagram of MBSFN subframe, as shown in Figure 7, in the process of back haul link transmission, the control area of MBSFN subframe takies 1 or 2 OFDM (Orthogonal Frequency Division Multiplex, OFDM) symbol is used for via node and (abbreviates as: R-UE) transmit control signal to the UE of its service.In the downlink transfer of back haul link, RN can't receive control area PDCCH (the Physical Downlink Control Channel of base station, Physical Downlink Control Channel), therefore, the base station need be at PDSCH (Physical Downlink Shared Channel, physical down link sharing channel) zone is created in the zone, be used for transmitting control signal to RN, claim that this zone is R-PDCCH (Relay-PDCCH, relaying PDCCH) zone, this zone comprises R-PDCCH and R-PHICH (Relay-Physical HARQ Indicator Channel, relaying-Physical HARQ Indicator Channel; HARQ:Hybrid Automatic Repeat reQuest, mixed automatic repeat request).
Based on this, propose in the invention process in the LTE-A system, to the solution of the multiplexing transmission of data on the back haul link and control signaling, this scheme provides a kind of scheme of semi-static configuration control area of the downstream signal that is used for back haul link.
Fig. 8 is a back haul link downlink information transmission method implementing procedure schematic diagram, as shown in the figure, can comprise the steps:
Step 801, eNB are identified for sending to the subscriber equipment R10UE of via node RN and/or support 3GPP version 10 first area of downlink information on back haul link;
Step 802, described eNB are notified to RN and/or R10UE with described first area resource allocation information;
Step 803, in descending back haul link, evolution base station sends downlink information in the first area to RN and/or R10UE.
In the enforcement, the first area comprises: relaying Physical Downlink Control Channel R-PDCCH zone and the automatic repeat requests HARQ indicating channel of relaying physical mixed R-PHICH zone;
Downlink information comprises corresponding to the Downlink Control Information of RN and/or R10UE and ACK/NACK feedback information;
ENB in the R-PDCCH zone to RN and/or R10UE transmission Downlink Control Information, in the R-PHICH zone to RN and/or R10UE transferring ACK/NACK feedback information.
Embodiment to the first area describes below.
In the enforcement, the first area can take 14-K OFDM symbol, and K is the OFDM symbol numbers that PDCCH, PHICH and PCFICH take, K=1,2,3; Width on frequency domain is M PRB (Physical Resource Block, a Physical Resource Block), and M is an integer, and the PRB number of 1≤M≤downlink system bandwidth.
Fig. 9 is the control and the data area reuse plan schematic diagram of back haul link, as shown in the figure, the left side is PDCCH, PHICH and PCFICH zone in the back haul link descending sub frame, these three control areas that the zone is R8UE, take K (K=1,2,3) individual OFDM symbol, its length is notified by PCFICH; Define a special area on the right: with frame of broken lines go out in order to the signal the first area, be denoted as Special PDSCH among the figure, R-PDCCH, R-PHICH, wherein: Special PDSCH is used for relaying down link or R10MacroUE (supporting the grand UE of 3GPP version 10) down link (Relay link downlink or R10 Macro UE downlink), with conventional CP (Cyclic Prefix, Cyclic Prefix) is example, this zone can account for 14-K OFDM symbol, be used for eNB to RN or R10UE transmission of downlink signal, the width of this zone on frequency domain is M PRB, M is an integer, and the PRB number of 1≤M≤downlink system bandwidth, in the enforcement, M PRB can be continuous, also can be discontinuous.
To R8UE and/or R10UE and/or RN transmitting downlink data, first area and second area constitute PDSCH to eNB at the second area of physical down link sharing channel PDSCH.Other data areas except that special area are normal PDSCH zone, that is: second area, be denoted as Normal PDSCH among the figure, be used for grand UE down link of R8/R10 or relaying down link (R8/R10 Macro UEdownlink Or Relay link downlink).For R8UE, its control information obtains by the PDCCH/PHICH zone, and R8UE does not know the existence as the first area of special area.
As shown in Figure 9, special area can be divided into two parts: a part is R-PDCCH and R-PHICH (left-hand component in the frame of broken lines), is used for eNB to RN and/or R10UE transmission Downlink Control Information and ACK/NACK feedback information; Another part is R-PDSCH zone (the right Special PDSCH part in the frame of broken lines), is used for eNB to RN and/or R10UE transmitting downlink data and reference signal.Wherein R-PDCCH and R-PHICH zone account for N (the individual continuous OFDM symbol of 1≤N≤14-K), and the R-PDSCH zone accounts for 14-k-N continuous OFDM symbol on time domain on time domain.
In the enforcement, R-PDCCH zone and R-PHICH zone can adopt FDM (Frequency Division Mutiplexing, frequency division multiplexing), TDM (Time Division Multiplexing, time division multiplexing) mode to divide, and be concrete:
When the running time-frequency resource that R-PDCCH zone and R-PHICH zone take adopted frequency division multiplexing FDM mode to divide, the OFDM symbolic number that described R-PDCCH zone and R-PHICH zone take in time domain was 14-K, and the PRB number that takies at frequency domain is M;
Wherein: K is the symbolic number that the descending control area of the subscriber equipment R8UE of support 3GPP version 8 takies, K=1,2,3; 1≤M＜NDL, NDL are the PRB number of whole downlink bandwidth;
The downlink information of described each RN and/or R10UE takies a PRB respectively.
When the running time-frequency resource that R-PDCCH zone and R-PHICH zone take adopts the time division multiplexing tdm mode to divide, the OFDM symbolic number that described R-PDCCH zone and R-PHICH zone take in time domain is N, the number M of the PRB that takies at frequency domain is the PRB number of whole downlink bandwidth, wherein: 1≤N＜14-K, K is the symbolic number that the descending control area of the subscriber equipment R8UE of support 3GPP version 8 takies, K=1,2,3;
When the running time-frequency resource that described R-PDCCH zone and R-PHICH zone take adopts the TDM+FDM mode to divide, the OFDM symbolic number that described R-PDCCH zone and R-PHICH zone take in time domain is N, the number M of the PRB that takies at frequency domain, wherein: 1≤N＜14-K, 1≤M＜NDL, K are the symbolic number that the descending control area of the subscriber equipment R8UE of support 3GPP version 8 takies, K=1,2,3, NDL is the PRB number of whole downlink bandwidth.
In the enforcement, carry out then can adopting following method for mapping resource when resource is shone upon at a plurality of RN and R10UE:
When carrying out the resource mapping, a plurality of RN and R10UE adopt the resource mapping method based on CCE (Control Channel Element, control channel unit) of Long Term Evolution LTE standard;
Or, when carrying out the resource mapping, a plurality of RN and R10UE adopt the resource mapping method of TDM;
Or, when carrying out the resource mapping, a plurality of RN and R10UE adopt the resource mapping method of FDM;
Or, when carrying out the resource mapping, a plurality of RN and R10UE adopt the resource mapping method of code division multiplexing CDM;
Or, the resource mapping method that when a plurality of RN and R10UE carry out the resource mapping, adopts TDM, FDM, CDM to mix.
Describe below by embodiment.
Embodiment one
Figure 10 is the control and the data area FDM mode reuse plan schematic diagram of back haul link, as shown in the figure, if R-PDCCH and R-PHICH zone adopt the FDM mode to divide, the OFDM symbolic number N=14-K that this zone takies in time domain, the number of the PRB that takies at frequency domain is M (1≤M＜downlink bandwidth); Further, can also make the control signaling of each RN or R10UE all take 1 PRB, adopt the FDM mode to carry out the resource mapping, as shown in figure 10, can adopt the CCE resource mapping method of R8 standard, also can adopt TDM, FDM, CDM and hybrid mode etc. to carry out the resource mapping.
Embodiment two
Figure 11 is the control and the data area TDM mode reuse plan schematic diagram of back haul link, as shown in the figure, if R-PDCCH and R-PHICH adopt in the zone TDM to divide, the OFDM symbolic number that this zone takies in time domain be N (1≤N＜14-K), the number of the PRB that takies at frequency domain is whole downlink bandwidth; The PDCCH of the similar R8 of TDM dividing mode.In the enforcement, the resource mapping method based on CCE that the mapping of the resource of a plurality of RN and R10UE can be continued to use the R8 standard as shown in figure 11, also can adopt mapping modes such as TDM, FDM, CDM or hybrid mode.
Embodiment three
Figure 12 is the control and the data area FDM+TDM mode reuse plan schematic diagram of back haul link, as shown in the figure, if R-PDCCH and R-PHICH zone adopt TDM+FDM to divide, the OFDM symbolic number that this zone takies in time domain is N (1≤N＜14-K), the number M (1≤M＜downlink bandwidth) of the PRB that takies at frequency domain; The similar Figure 11 of this dividing mode.In the enforcement, the resource mapping method based on CCE that the mapping of the resource of a plurality of RN and R10UE can be continued to use the R8 standard as shown in figure 12, also can adopt mapping modes such as TDM, FDM, CDM or hybrid mode.
In the enforcement, in the enforcement of step 802, before via node RN served its subordinate's subscriber equipment R-UE, eNB can give RN and/or R10UE with first area resource distribution message informing by the radio resource control RRC broadcast or at the exclusive high-level signaling of RN and/or R10UE.
Wherein, the first area resource allocation information of broadcast or high-rise exclusive signaling transmission can comprise following information:
Position or the R-PDCCH of the PRB numbering, each RN and/or the R10UE that are consecutive hours initial PRB and the resource location that R-PHICH take etc. of each PRB on frequency domain when Physical Resource Block PRB number, the PRB that R-PDCCH zone and R-PHICH zone take in the original position of time domain and the orthogonal frequency division multiplex OFDM symbol numbers that takies, at frequency domain is discontinuous.
In this scheme, R-PDCCH and R-PHICH zone can be configured by semi-static, so-called semi-staticly are meant that the indication that does not need by R-PCFICH carries out dynamic-configuration.Before RN does not serve R-UE, when UE can receive PDCCH zone, base station, UE can be informed with above-mentioned semi-static configuration information in the base station, concrete content of announcement can comprise: the OFDM symbolic number that R-PDCCH and R-PHICH zone take in time domain (N value), the PRB number (M value) that takies at frequency domain, R-PDCCH and R-PHICH zone are in the original position of time domain, the numbering nPRB (PRB under this scheme is M continuous PRB) of the position of each PRB on the frequency domain (PRB under this scheme is M discrete PRB) or initial PRB, the resource locations that the R-PDCCH of each RN and/or R10UE and R-PHICH take etc. make RN and R10UE to obtain to control separately the shared resource location of signaling by blind check by this mode.
Concrete, when eNB passed through the PDCCH zone with described R-PDCCH zone and R-PHICH area configurations information notification UE, eNB can inform by system broadcast message or at the exclusive high-level signaling of Relay and/or R10UE.In the enforcement, can realize by system broadcasts or at the exclusive high-level signaling of Relay or R10UE in the time of need prenoticing, and the change R-PDCCH that the base station can be semi-static and R-PHICH zone are in OFDM symbolic number and position and/or PRB number and position that time-domain resource and/or frequency domain resource take.
Can further include in the enforcement:
ENB determines change R-PDCCH zone and R-PHICH area configurations according to the resource that back haul link channel quality and/or a plurality of RN and/or R10UE downlink information take;
ENB is by RRC (Radio Resource Control, Radio Resource control) broadcast or exclusive high-level signaling are informed RN and/or R10UE area configurations information after changing, and the entry-into-force time of notice RN and/or R10UE area configurations information after changing, thereby the behavior unanimity of assurance sending and receiving end.
Concrete, if the base station is by CQI (Channel Quality Indicator, channel quality indication) reports or other modes know that backhaul link quality changes, perhaps the base station knows that the RN number of access and/or R10UE number change, when the resource that causes the control area to take need change, the base station need be by RRC broadcast or exclusive the high-level signaling R-PDCCH after RN and R10UE are notifying changed and time domain and/or the frequency domain resource size and the position in R-PHICH zone in advance, base station and RN or R10UE need make an appointment time of RRC configuration take-effective, in order to guarantee the consistency of transmitting-receiving two-end behavior, guarantee the correct demodulation of R-PDCCH.
Based on same inventive concept, corresponding, a kind of back haul link downlink information transmission method also is provided in the embodiment of the invention, this method mainly is to implement at receiving terminal.Describe below.
Figure 13 is a back haul link downlink information transmission method implementing procedure schematic diagram, as shown in the figure, can comprise the steps: in the enforcement
In the enforcement, the first area can comprise: R-PDCCH zone and R-PHICH zone;
Downlink information comprises corresponding to the Downlink Control Information of RN and/or R10UE and ACK/NACK feedback information;
RN and/or R10UE receive the Downlink Control Information that eNB sends in the R-PDCCH zone, receive the ACK/NACK feedback information that eNB sends in the R-PHICH zone.
In the enforcement, RN and/or R10UE obtain R-PDCCH zone and R-PHICH area configurations information by RRC broadcast or the exclusive high-level signaling that the base station sends.
Further, can also comprise in the enforcement:
When the area configurations information-change, RN and/or R10UE receive the RRC broadcast or the exclusive high-rise order of the area configurations information after changing of carrying, and the entry-into-force time of area configurations information after changing;
RN and/or R10UE receive the downlink information that eNB sends according to area configurations information and the entry-into-force time after changing in first area after changing.
This is because report by CQI in the base station or other modes know that backhaul link quality changes, perhaps the base station knows that the RN number of access and/or R10UE number change, when the resource that causes the control area to take need change, the base station can by RRC broadcast or exclusive high-level signaling after RN and R10UE are notifying changed R-PDCCH and time domain and/or the frequency domain resource size and the position in R-PHICH zone, therefore RN and/or R10UE can adjust configuration information in view of the above, thereby can correctly receive.
Based on same inventive concept, a kind of base station, a kind of back haul link downlink information transmission equipment also are provided in the embodiment of the invention, because the principle that these equipment are dealt with problems is similar to a kind of back haul link downlink information transmission method, therefore the enforcement of these equipment can repeat part and not give unnecessary details referring to the enforcement of method.
Figure 14 is the architecture of base station schematic diagram, as shown in the figure, can comprise in the base station:
Wherein, the first area comprises: relaying Physical Downlink Control Channel R-PDCCH zone and the automatic repeat requests HARQ indicating channel of relaying physical mixed R-PHICH zone;
Sending module 1403 is used at descending back haul link, sends downlink information in the first area to RN and/or R10UE.
In the enforcement, downlink information comprises corresponding to the Downlink Control Information of RN and/or R10UE and ACK/NACK feedback information;
Sending module can be further used in the R-PDCCH zone to RN and/or R10UE transmission Downlink Control Information, in the R-PHICH zone to RN and/or R10UE transferring ACK/NACK feedback information
In the enforcement, notification module can be further used for before via node RN serves its subordinate's subscriber equipment R-UE, gave RN and/or R10UE by the radio resource control RRC broadcast or at the exclusive high-level signaling of RN and/or R10UE with first area resource distribution message informing.
Notification module can also be further used for notifying the first area that comprises following content resource allocation information:
Position or the R-PDCCH of the PRB numbering, each RN and/or the R10UE that are consecutive hours initial PRB and the resource location that R-PHICH take etc. of each PRB on frequency domain when Physical Resource Block PRB number, the PRB that R-PDCCH zone and R-PHICH zone take in the original position of time domain and the orthogonal frequency division multiplex OFDM symbol numbers that takies, at frequency domain is discontinuous.
In the enforcement, when the running time-frequency resource employing frequency division multiplexing FDM mode that the zone determination module can be further used for taking in described R-PDCCH zone and R-PHICH zone is divided, determine that the OFDM symbolic number that described R-PDCCH zone and R-PHICH zone take in time domain is 14-K, the PRB number that takies at frequency domain is M;
Wherein: K is the symbolic number that the descending control area of the subscriber equipment R8UE of support 3GPP version 8 takies, K=1,2,3; 1≤M＜NDL, NDL are the PRB number of whole downlink bandwidth;
The downlink information of described each RN and/or R10UE takies a PRB respectively.
When the running time-frequency resource employing time division multiplexing tdm mode that the zone determination module also can be further used for taking in described R-PDCCH zone and R-PHICH zone is divided, determine that the OFDM symbolic number that described R-PDCCH zone and R-PHICH zone take in time domain is N, the number M of the PRB that takies at frequency domain is the PRB number of whole downlink bandwidth, wherein: 1≤N＜14-K, K is the symbolic number that the descending control area of the subscriber equipment R8UE of support 3GPP version 8 takies, K=1,2,3; When running time-frequency resource regional at described R-PDCCH and that the R-PHICH zone takies adopts the TDM+FDM mode to divide, determine that the OFDM symbolic number that described R-PDCCH zone and R-PHICH zone take in time domain is N, the number M of the PRB that takies at frequency domain, wherein: 1≤N＜14-K, 1≤M＜NDL, K are the symbolic number that the descending control area of the subscriber equipment R8UE of support 3GPP version 8 takies, K=1,2,3, NDL is the PRB number of whole downlink bandwidth.
Can further include the resource mapping block in the base station, be used for when a plurality of RN and R10UE carry out the resource mapping, adopting the resource mapping method based on control channel unit CCE of Long Term Evolution LTE standard; Or, when carrying out the resource mapping, a plurality of RN and R10UE adopt the resource mapping method of TDM; Or, when carrying out the resource mapping, a plurality of RN and R10UE adopt the resource mapping method of FDM; Or, when carrying out the resource mapping, a plurality of RN and R10UE adopt the resource mapping method of code division multiplexing CDM; Or, the resource mapping method that when a plurality of RN and R10UE carry out the resource mapping, adopts TDM, FDM, CDM to mix.
In the enforcement, when the base station reports by CQI or other modes know that backhaul link quality changes, perhaps the base station knows that the RN number of access and/or R10UE number change, and when the resource that causes the control area to take need change, can also be:
The zone determination module can be further used for determining change R-PDCCH zone and R-PHICH area configurations according to the resource that back haul link channel quality and/or a plurality of RN and/or R10UE downlink information take;
Notification module can be further used for informing RN and/or R10UE area configurations information after changing by RRC broadcast or exclusive high-level signaling, and the entry-into-force time of area configurations information after changing.
Figure 15 is a back haul link downlink information transmission equipment structural representation, as shown in the figure, can comprise in the equipment:
Configuration information receiver module 1501 is used at via node RN receiving the first area resource allocation information that eNB sends before its subordinate's subscriber equipment of service R-UE;
Wherein, the first area comprises: relaying Physical Downlink Control Channel R-PDCCH zone and the automatic repeat requests HARQ indicating channel of relaying physical mixed R-PHICH zone;
Downlink information receiver module 1502 is used for receiving the downlink information that eNB sends in the first area according to the first area resource allocation information.
In the enforcement, downlink information comprises corresponding to the Downlink Control Information of RN and/or R10UE and ACK/NACK feedback information;
The downlink information receiver module can be further used for receiving the Downlink Control Information that eNB sends in the R-PDCCH zone, receives the ACK/NACK feedback information that eNB sends in the R-PHICH zone
In the enforcement, RRC broadcast or exclusive high-level signaling that the configuration information receiver module can be further used for sending by the base station obtain R-PDCCH zone and R-PHICH area configurations information.
The configuration information receiver module can also be further used for when the area configurations information-change, receives the RRC broadcast or the exclusive high-rise order of the area configurations information after changing of carrying, and the entry-into-force time of area configurations information after changing;
The downlink information receiver module can be further used for receiving the downlink information that eNB sends in the first area according to after changing first area resource allocation information and entry-into-force time.
In the enforcement, equipment can be RN and/or R10UE.
For the convenience of describing, the each several part of the above device is divided into various modules with function or the unit is described respectively.Certainly, when enforcement is of the present invention, can in same or a plurality of softwares or hardware, realize the function of each module or unit.
By the foregoing description as can be known, the method for transmitting signals of the downlink relay link of the embodiment of the invention makes the grand UE of via node equipment and R10 can utilize all physical resources to carry out downlink data transmission fully, and has guaranteed the compatibility to R8 user.
Further, the embodiment of the invention has solved in the LTE-A system also not the problem to the multiplexing optimizing design scheme in control area on the back haul link and data area, has provided the scheme of the semi-static configuration control area of the downstream signal that is used for back haul link.
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.
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.
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.
Claims (25)
1. a back haul link downlink information transmission method is characterized in that, comprises the steps:
Evolution base station eNB is identified for sending to the subscriber equipment R10UE of via node RN and/or support 3GPP version 10 first area of downlink information on back haul link, described first area comprises: relaying Physical Downlink Control Channel R-PDCCH zone and the automatic repeat requests HARQ indicating channel of relaying physical mixed R-PHICH zone;
Described eNB is notified to RN and/or R10UE with described first area resource allocation information;
In descending back haul link, evolution base station sends downlink information in the first area to RN and/or R10UE.
2. the method for claim 1 is characterized in that, described downlink information comprises corresponding to the Downlink Control Information of RN and/or R10UE and ACK/NACK feedback;
ENB in the R-PDCCH zone to RN and/or R10UE transmission Downlink Control Information, in the R-PHICH zone to RN and/or R10UE transferring ACK/NACK feedback information.
3. the method for claim 1 is characterized in that, described eNB is notified to RN and/or R10UE with described first area resource allocation information, is specially:
Before via node RN served its subordinate's subscriber equipment R-UE, eNB gave RN and/or R10UE by the radio resource control RRC broadcast or at the exclusive high-level signaling of RN and/or R10UE with first area resource distribution message informing.
4. method as claimed in claim 3 is characterized in that, the first area resource allocation information of described broadcast or high-rise exclusive signaling transmission comprises following information:
Position or the R-PDCCH of the PRB numbering, each RN and/or the R10UE that are consecutive hours initial PRB and the resource location that R-PHICH take etc. of each PRB on frequency domain when Physical Resource Block PRB number, the PRB that R-PDCCH zone and R-PHICH zone take in the original position of time domain and the orthogonal frequency division multiplex OFDM symbol numbers that takies, at frequency domain is discontinuous.
5. the method for claim 1, it is characterized in that, when the running time-frequency resource that described R-PDCCH zone and R-PHICH zone take adopts frequency division multiplexing FDM mode to divide, the OFDM symbolic number that described R-PDCCH zone and R-PHICH zone take in time domain is 14-K, and the PRB number that takies at frequency domain is M;
Wherein: K is the symbolic number that the descending control area of the subscriber equipment R8UE of support 3GPP version 8 takies, K=1,2,3; 1≤M＜NDL, NDL are the PRB number of whole downlink bandwidth;
The downlink information of described each RN and/or R10UE takies a PRB respectively.
6. the method for claim 1, it is characterized in that, when the running time-frequency resource that described R-PDCCH zone and R-PHICH zone take adopts the time division multiplexing tdm mode to divide, the OFDM symbolic number that described R-PDCCH zone and R-PHICH zone take in time domain is N, and the number M of the PRB that takies at frequency domain is the PRB number of whole downlink bandwidth, wherein: 1≤N＜14-K, K is the symbolic number that the descending control area of the subscriber equipment R8UE of support 3GPP version 8 takies, K=1,2,3;
When the running time-frequency resource that described R-PDCCH zone and R-PHICH zone take adopts the TDM+FDM mode to divide, the OFDM symbolic number that described R-PDCCH zone and R-PHICH zone take in time domain is N, the number M of the PRB that takies at frequency domain, wherein: 1≤N＜14-K, 1≤M＜NDL, K are the symbolic number that the descending control area of the subscriber equipment R8UE of support 3GPP version 8 takies, K=1,2,3, NDL is the PRB number of whole downlink bandwidth.
7. as claim 5 or 6 described methods, it is characterized in that, when a plurality of RN and R10UE carry out the resource mapping, adopt the resource mapping method based on control channel unit CCE of Long Term Evolution LTE standard;
Or, when carrying out the resource mapping, a plurality of RN and R10UE adopt the resource mapping method of TDM;
Or, when carrying out the resource mapping, a plurality of RN and R10UE adopt the resource mapping method of FDM;
Or, when carrying out the resource mapping, a plurality of RN and R10UE adopt the resource mapping method of code division multiplexing CDM;
Or, the resource mapping method that when a plurality of RN and R10UE carry out the resource mapping, adopts TDM, FDM, CDM to mix.
8. as the arbitrary described method of claim 1 to 6, it is characterized in that, further comprise:
ENB determines change R-PDCCH zone and R-PHICH area configurations according to the resource that back haul link channel quality and/or a plurality of RN and/or R10UE downlink information take;
ENB informs RN and/or R10UE area configurations information after changing by RRC broadcast or exclusive high-level signaling, and the entry-into-force time of notice RN and/or R10UE area configurations information after changing.
9. a back haul link downlink information transmission method is characterized in that, comprises the steps:
Via node RN is before its subordinate's subscriber equipment of service R-UE, receive the first area resource allocation information that eNB sends, described first area comprises: relaying Physical Downlink Control Channel R-PDCCH zone and the automatic repeat requests HARQ indicating channel of relaying physical mixed R-PHICH zone;
Described RN receives the downlink information that eNB sends according to the first area resource allocation information in the first area.
10. method as claimed in claim 9 is characterized in that, described downlink information comprises corresponding to the Downlink Control Information of RN and/or R10UE and ACK/NACK feedback information;
RN and/or R10UE receive the Downlink Control Information that eNB sends in the R-PDCCH zone, receive the ACK/NACK feedback information that eNB sends in the R-PHICH zone.
11. method as claimed in claim 9 is characterized in that, RN and/or R10UE obtain R-PDCCH zone and R-PHICH area configurations information by RRC broadcast or the exclusive high-level signaling that the base station sends.
12. as the arbitrary described method of claim 9 to 11, it is characterized in that, further comprise:
When the area configurations information-change, RN and/or R10UE receive the RRC broadcast or the exclusive high-rise order of the area configurations information after changing of carrying, and the entry-into-force time of area configurations information after changing;
RN and/or R10UE receive the downlink information that eNB sends according to area configurations information and the entry-into-force time after changing in first area after changing.
13. a base station is characterized in that, comprising:
The zone determination module, be used to be identified for sending to the subscriber equipment R10UE of via node RN and/or support 3GPP version 10 on back haul link the first area of downlink information, described first area comprises: relaying Physical Downlink Control Channel R-PDCCH zone and the automatic repeat requests HARQ indicating channel of relaying physical mixed R-PHICH zone;
Notification module is used for described first area resource allocation information is notified to RN and/or R10UE;
Sending module is used at descending back haul link, sends downlink information in the first area to RN and/or R10UE.
14. base station as claimed in claim 13 is characterized in that, described downlink information comprises corresponding to the Downlink Control Information of RN and/or R10UE and ACK/NACK feedback information;
Described sending module is further used in the R-PDCCH zone to RN and/or R10UE transmission Downlink Control Information, in the R-PHICH zone to RN and/or R10UE transferring ACK/NACK feedback information.
15. base station as claimed in claim 13, it is characterized in that, described notification module was further used for before via node RN serves its subordinate's subscriber equipment R-UE, gave RN and/or R10UE by the radio resource control RRC broadcast or at the exclusive high-level signaling of RN and/or R10UE with first area resource distribution message informing.
16. base station as claimed in claim 15 is characterized in that, described notification module is further used for notifying the first area that comprises following content resource allocation information:
Position or the R-PDCCH of the PRB numbering, each RN and/or the R10UE that are consecutive hours initial PRB and the resource location that R-PHICH take etc. of each PRB on frequency domain when Physical Resource Block PRB number, the PRB that R-PDCCH zone and R-PHICH zone take in the original position of time domain and the orthogonal frequency division multiplex OFDM symbol numbers that takies, at frequency domain is discontinuous.
17. base station as claimed in claim 13, it is characterized in that, when the running time-frequency resource employing frequency division multiplexing FDM mode that the zone determination module is further used for taking in described R-PDCCH zone and R-PHICH zone is divided, determine that the OFDM symbolic number that described R-PDCCH zone and R-PHICH zone take in time domain is 14-K, the PRB number that takies at frequency domain is M;
Wherein: K is the symbolic number that the descending control area of the subscriber equipment R8UE of support 3GPP version 8 takies, K=1,2,3; 1≤M＜NDL, NDL are the PRB number of whole downlink bandwidth;
The downlink information of described each RN and/or R10UE takies a PRB respectively.
18. base station as claimed in claim 13, it is characterized in that, when the running time-frequency resource employing time division multiplexing tdm mode that the zone determination module is further used for taking in described R-PDCCH zone and R-PHICH zone is divided, determine that the OFDM symbolic number that described R-PDCCH zone and R-PHICH zone take in time domain is N, the number M of the PRB that takies at frequency domain is the PRB number of whole downlink bandwidth, wherein: 1≤N＜14-K, K is the symbolic number that the descending control area of the subscriber equipment R8UE of support 3GPP version 8 takies, K=1,2,3; When running time-frequency resource regional at described R-PDCCH and that the R-PHICH zone takies adopts the TDM+FDM mode to divide, determine that the OFDM symbolic number that described R-PDCCH zone and R-PHICH zone take in time domain is N, the number M of the PRB that takies at frequency domain, wherein: 1≤N＜14-K, 1≤M＜NDL, K are the symbolic number that the descending control area of the subscriber equipment R8UE of support 3GPP version 8 takies, K=1,2,3, NDL is the PRB number of whole downlink bandwidth.
19., it is characterized in that as claim 17 or 18 described base stations, further comprise the resource mapping block, be used for when a plurality of RN and R10UE carry out the resource mapping, adopting the resource mapping method based on control channel unit CCE of Long Term Evolution LTE standard; Or, when carrying out the resource mapping, a plurality of RN and R10UE adopt the resource mapping method of TDM; Or, when carrying out the resource mapping, a plurality of RN and R10UE adopt the resource mapping method of FDM; Or, when carrying out the resource mapping, a plurality of RN and R10UE adopt the resource mapping method of code division multiplexing CDM; Or, the resource mapping method that when a plurality of RN and R10UE carry out the resource mapping, adopts TDM, FDM, CDM to mix.
20. as the arbitrary described base station of claim 13 to 18, it is characterized in that,
Described regional determination module is further used for determining change R-PDCCH zone and R-PHICH area configurations according to the resource that back haul link channel quality and/or a plurality of RN and/or R10UE downlink information take;
Described notification module is further used for informing RN and/or R10UE area configurations information after changing by RRC broadcast or exclusive high-level signaling, and the entry-into-force time of area configurations information after changing.
21. a back haul link downlink information transmission equipment is characterized in that, comprising:
The configuration information receiver module, be used at via node RN before its subordinate's subscriber equipment of service R-UE, receive the first area resource allocation information that eNB sends, described first area comprises: relaying Physical Downlink Control Channel R-PDCCH zone and the automatic repeat requests HARQ indicating channel of relaying physical mixed R-PHICH zone;
The downlink information receiver module is used for receiving the downlink information that eNB sends in the first area according to the first area resource allocation information.
22. equipment as claimed in claim 21 is characterized in that, described downlink information comprises corresponding to the Downlink Control Information of RN and/or R10UE and ACK/NACK feedback information;
Described downlink information receiver module is further used for receiving the Downlink Control Information that eNB sends in the R-PDCCH zone, receives the ACK/NACK feedback information that eNB sends in the R-PHICH zone.
23. equipment as claimed in claim 21 is characterized in that, RRC broadcast or exclusive high-level signaling that described configuration information receiver module is further used for sending by the base station obtain R-PDCCH zone and R-PHICH area configurations information.
24. as the arbitrary described equipment of claim 21 to 23, it is characterized in that, described configuration information receiver module is further used for when the area configurations information-change, the RRC broadcast or the exclusive high-rise order of area configurations information after changing carried in reception, and the entry-into-force time of area configurations information after changing;
Described downlink information receiver module is further used for receiving the downlink information that eNB sends in the first area according to after changing first area resource allocation information and entry-into-force time.
25., it is characterized in that described equipment is RN and/or R10UE as the arbitrary described equipment of claim 21 to 23.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100865369A CN101908955A (en) | 2009-06-05 | 2009-06-05 | Downlink information transmission method and device of return link |
| PCT/CN2010/072228 WO2010139217A1 (en) | 2009-06-05 | 2010-04-27 | Method for transmitting downlink information on backhaul link and equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100865369A CN101908955A (en) | 2009-06-05 | 2009-06-05 | Downlink information transmission method and device of return link |
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| CN101908955A true CN101908955A (en) | 2010-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100865369A Pending CN101908955A (en) | 2009-06-05 | 2009-06-05 | Downlink information transmission method and device of return link |
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| WO (1) | WO2010139217A1 (en) |
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| WO2012130182A1 (en) * | 2011-04-01 | 2012-10-04 | Huawei Technologies Co., Ltd. | System and method for signaling a location of a control channel |
| WO2012142772A1 (en) * | 2011-04-22 | 2012-10-26 | 富士通株式会社 | Method for configuring resources, method for sending response signal, base station and user equipment |
| CN103298118A (en) * | 2012-02-29 | 2013-09-11 | 电信科学技术研究院 | Indication and confirmation method and device for time-frequency resource |
| CN104094543A (en) * | 2012-09-28 | 2014-10-08 | 华为技术有限公司 | Transmission and reception of enhanced PDCCH |
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| EP3506694B1 (en) * | 2016-11-03 | 2023-01-25 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Signal transmission method, terminal device, and network device |
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