WO2010051780A1 - 中继传输方法和网络节点 - Google Patents
中继传输方法和网络节点 Download PDFInfo
- Publication number
- WO2010051780A1 WO2010051780A1 PCT/CN2009/075198 CN2009075198W WO2010051780A1 WO 2010051780 A1 WO2010051780 A1 WO 2010051780A1 CN 2009075198 W CN2009075198 W CN 2009075198W WO 2010051780 A1 WO2010051780 A1 WO 2010051780A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- subframe
- relay link
- relay
- frame
- subframes
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 157
- 230000005540 biological transmission Effects 0.000 title claims abstract description 80
- 230000008569 process Effects 0.000 claims description 82
- 101000741965 Homo sapiens Inactive tyrosine-protein kinase PRAG1 Proteins 0.000 claims description 32
- 102100038659 Inactive tyrosine-protein kinase PRAG1 Human genes 0.000 claims description 32
- 238000004891 communication Methods 0.000 claims description 23
- 238000005070 sampling Methods 0.000 claims description 5
- 230000007774 longterm Effects 0.000 claims description 2
- 230000011664 signaling Effects 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 claims 1
- 238000012545 processing Methods 0.000 abstract description 12
- 238000003672 processing method Methods 0.000 description 31
- 238000010586 diagram Methods 0.000 description 22
- 150000002500 ions Chemical class 0.000 description 9
- 230000000295 complement effect Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 238000010187 selection method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 2
- 238000013468 resource allocation Methods 0.000 description 2
- 101150096310 SIB1 gene Proteins 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/002—Transmission of channel access control information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0055—Physical resource allocation for ACK/NACK
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
- H04W84/047—Public Land Mobile systems, e.g. cellular systems using dedicated repeater stations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
- H04B7/15528—Control of operation parameters of a relay station to exploit the physical medium
- H04B7/15542—Selecting at relay station its transmit and receive resources
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2603—Arrangements for wireless physical layer control
- H04B7/2606—Arrangements for base station coverage control, e.g. by using relays in tunnels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L2001/0092—Error control systems characterised by the topology of the transmission link
- H04L2001/0097—Relays
Definitions
- the present invention relates to the field of communications technologies, and in particular, to a relay transmission method and a network node. Background technique
- relay relay
- the relay technology can perform cell coverage expansion, cell capacity improvement, and cell throughput uniformity.
- the frame structure of the LTE system is in units of frames. There are 10 subframes in each frame, and each subframe is fixed at lms. Due to the evolution of LTE to LTE-Advanced (Advanced Long Term Evolution), LTE and LTE-A networks coexist for a long time. To use the relay technology in LTE-A/LTE, you need to consider the technical features of the existing LTE system version R8 to ensure compatibility with the R8 UE in the LTE system version.
- the UE in the LTE system version R8 cannot be effectively compatible.
- the embodiment of the invention provides a relay transmission method and a network node, so as to ensure that the UE in the existing LTE system can be backward compatible.
- An embodiment of the present invention provides a relay transmission method, including:
- the relay link subframe configuration information is received, where the relay link subframe is configured in a subframe that is an integer multiple of a frame period; and the relay link transmission is performed according to the configured relay link subframe.
- an embodiment of the present invention further provides a relay transmission transmission method including: Performing data transmission according to the selected relay link subframe;
- the guard time is reserved in the selected relay link subframe, where the length of the guard time is specifically an integer multiple of the LTE sampling interval, and/or the length of the guard time is adjusted by the transmitting parties in the signaling;
- the relay link subframe includes one or two guard times, the guard time being located in front of the resources used by the relay link, and/or behind the resources used by the relay link.
- an embodiment of the present invention further provides a data transmission method, where the method includes:
- a specific subframe is selected by using an integer multiple of a frame as a period
- the selected specific subframe is used for communication by the LTE-A terminal, and the non-specific subframe in the integer multiple frame is used for communication between the LTE-A terminal and the LTE terminal.
- the embodiment of the present invention further provides a network node, including:
- a receiving module configured to receive relay link subframe information, where the relay link subframe is configured in a subframe that is an integer multiple of a frame period, and has a specific hybrid automatic retransmission HARQ timing;
- the transmission module performs relay link transmission according to the relay link subframe determined by the relay link subframe information received by the receiving module.
- the configuration of the relay link subframe is performed in an integer multiple of the frame, and the relay transmission is performed according to the relay link subframe, where the relay link subframe has a specific HARQ. Timing.
- the relay transmission method proposed by the embodiment of the present invention satisfies various constraints of the LTE FDD system, and can be backward compatible with UEs in the LTE system.
- FIG. 1 is a flowchart of a relay transmission method according to an embodiment of the present invention
- FIG. 1b is a flowchart of a relay transmission method according to another embodiment of the present invention.
- FIG. 2 is a schematic diagram of a relay transmission mode according to an embodiment of the present invention.
- 3 is an option of an LTE FDD system that can be used for a relay link subframe according to an embodiment of the present invention
- 4a is a schematic diagram of an MBSFN subframe in an LTE system according to an embodiment of the present invention.
- 4b is a schematic structural diagram of a frame according to an embodiment of the present invention.
- 4c is a schematic structural diagram of a frame according to an embodiment of the present invention.
- FIG. 4d is a schematic structural diagram of a frame according to an embodiment of the present invention
- FIG. 5 is a schematic diagram of a guard interval in a subframe of a relay link according to an embodiment of the present invention
- FIG. 6 is a schematic diagram of a partial protection OFDM symbol using MBSFN subframe unicast OFDM symbols according to an embodiment of the present invention
- FIG. 7 is a schematic diagram of a method for taking guard time when an eNB and a Relay subframe are offset in Type 1 according to an embodiment of the present invention
- FIG. 9 is a schematic diagram of a unicast OFDM symbol that does not utilize an MBSFN subframe according to an embodiment of the present invention
- FIG. 10 is a schematic diagram of a unicast OFDM symbol that does not utilize an MBSFN subframe according to an embodiment of the present invention
- FIG. 10b is a schematic diagram of a frame structure for configuring a subframe of a relay link according to an embodiment of the present invention
- FIG. 10c is a schematic structural diagram of another frame for configuring a relay link subframe according to an embodiment of the present invention.
- FIG. 10 is a schematic structural diagram of another frame for configuring a relay link subframe according to an embodiment of the present invention.
- 10e is a schematic structural diagram of another frame for configuring a relay link subframe according to an embodiment of the present invention.
- 10f is a schematic structural diagram of another frame for configuring a relay link subframe according to an embodiment of the present invention.
- FIG. 10g is a schematic structural diagram of another frame for configuring a relay link subframe according to an embodiment of the present invention.
- 10h is a schematic structural diagram of another frame for configuring a relay link subframe according to an embodiment of the present invention.
- FIG. 10 is a schematic structural diagram of another frame for configuring a relay link subframe according to an embodiment of the present disclosure.
- FIG. 11 is a schematic diagram of transmission modes of an eNB, a UE-LTE, and a UE-LTE-A in a LTE-A and LTE-A convergence network according to an embodiment of the present invention
- FIG. 12 is a structural diagram of a network node according to an embodiment of the present invention. detailed description
- the frame structure needs to meet the following requirements:
- PUSCH Physical Uplink Incoming Channel
- PHICH Physical Hybrid Automatic Redirection Indication Channel
- UL (upl ink, uplink) HARQ (Hybrid Automatic Repeat Request) PUSCH retransmission period that is, the UE transmits the uplink data block for the first time on the subframe n, if it needs to retransmit the
- PDSCH Physical Downlink Shared Channel
- UL ACK/NACK Physical Downlink Shared Channel
- P/D-BCH Primary/Dynamic Broadcast Channel
- P/S-SCH Primary/Secondary Synchronization Channel
- PDCCH Packet Dedicated Control Channel
- PCFICH Physical Control Format Indication Channel
- Location of the Paging message The system configures the location where the paging message sent to the UE occurs.
- the Paging message is transmitted in the PDSCH, and also needs to send the control channel PDCCH, PCFICH.
- HARQ retransmission interval The interval between the first transmission and the first retransmission of the same data block, and the interval between two consecutive retransmissions are called retransmission intervals.
- Relay link The link between the relay station and the base station.
- Relay Link Subframe A resource used for relay link transmission, such as a subframe in which a time-frequency resource is located.
- the embodiment of the present invention provides a relay transmission method, as shown in FIG. 1a, which is a relay transmission according to an embodiment of the present invention.
- Flow chart of the method, the method comprising:
- Step S101 In the LTE FDD system, select a subframe as a relay link subframe in an integer multiple of a frame, where the unit includes a basic unit or a combination of multiple basic units, where the basic unit is a group UL subframe and DL subframe, the interval of the UL subframe is an LTE UL HARQ retransmission period, or a multiple of an LTE UL HARQ retransmission period.
- a part of the DL subframes in the DL subframe meet the LTE HARQ timing relationship
- the interval of the DL subframe is an interval of the UL subframe; or, the DL subframe and the UL subframe adopt an asynchronous LTE HARQ timing relationship; or, in a specific DL subframe UL grant scheduling and PHICH feedback information for multiple UL subframes are sent up.
- the relay transmits data requiring feedback UL ACK/NACK to the UE served by the relay by using at least one DL subframe in the DL direction of each frame, and the DL subframe may be DL subframe 0, DL subframe 4 DL. Subframe5 or DL subframe9.
- the relay transmits data that does not need to be fed back to the UL ACK/NACK to the UE served by the relay in the DL direction in each frame by using one DL subframe, and the DL subframe may be DL subframe 0, DL subframe4. DL subframe5 or DL subframe9.
- the relay transmits data in DL subframe 0, DL subfr 4, DL subfr 5 or DL subfr 9, the UL grant and the i3 ⁇ 4 ICH are not transmitted, the pilot and other control channels in the PDCCH are transmitted, and the PCFICH.
- all DL subframes in the DL subframe satisfy an LTE HARQ timing relationship, which is a subframe of a PHICH and a UL grant corresponding to the UL HARQ, and a specific subframe portion in the DL subframe For the relay link; or, the interval of the DL subframe is the interval of the UL subframe.
- subframe 0 In a basic unit or a combination of a plurality of basic units, at most one DL subframe in each intra-frame DL direction, subframe 0 does not transmit the data channel PDSCH and its control channel PCFICH, PDCCH.
- the relay station transmits a broadcast channel BCH, a synchronization channel SCH, and a pilot to the UE served by the relay station.
- the evolved base station eNB can transmit the PCFICH, PHICH, UL grant and pilot to the relay station through 1 ⁇ 3 symbols in front of the DL subframeO.
- the pilot transmitted by the relay station to the UE served by the relay station and the pilot transmitted by the eNB to the relay occupy different time-frequency resources.
- Step S102 Perform relay transmission according to the selected relay link subframe.
- Each UL HARQ process relayed within a relay link subframe has the same retransmission period or a different retransmission period as the LTE UL HARQ.
- a relay link subframe is selected in units of integer multiples of a frame, and relay transmission is performed according to the relay link subframe.
- the relay transmission method proposed by the embodiment of the present invention satisfies the LTE FDD system Various constraints, and can be backward compatible with LTE-R8 UEs.
- another embodiment of the present invention further provides a relay transmission method, including:
- S101' receiving relay link subframe configuration information, where the relay link subframe is configured in a subframe that is an integer multiple of a frame period, and has a specific hybrid automatic retransmission HARQ timing;
- the base station and the relay station and/or the terminal transmit on the relay link subframe, and the base station and/or the relay station communicate with the terminal user on the non-relay link subframe.
- the relay transmission is performed according to the configured relay link subframe, and the relay link subframe is configured in a subframe in a period of an integer multiple of the frame, including the downlink relay chain.
- the configuration of the path subframe and/or the uplink relay link subframe, and having a specific HARQ timing, satisfies backward compatibility with UEs in the existing LTE system, and implements relay transmission.
- FIG. 2 it is a schematic diagram of a relay transmission mode according to an embodiment of the present invention.
- the eNB, the UE_eNB (the UE served by the eNB), the RN (Relay Node, the relay station), and the UE-RN (the UE served by the RN) Ordered communication is performed according to the method shown in FIG.
- the communication between the eNB UE-eNB and the RN "UE-RN is performed simultaneously in T1
- the communication of the eNB RN is performed in T2
- the communication of the eNB UE-eNB is also performed.
- T1, ⁇ 2 are in the LTE system.
- a subframe, T2 is a trunk link subframe.
- the RN "UE-RN communication is not performed on the relay link subframe, in order to ensure that the UE in the LTE system version R8 is backward compatible, the selection of the relay link subframe is required, and the normality of the UE-RN cannot be affected. Communication.
- the embodiment of the present invention firstly provides a method for selecting a relay link subframe that satisfies the above requirements, and performs two special processing on the downlink subframes iO, 4, 5, 9 ⁇ , and finally gives an LTE FDD system. , can guarantee the backward compatible relay link transmission method.
- the trunk link subframe can be selected as follows: First, in a frame frame nf (nf represents a frame number), select a UL subframe subframe n that can be used for the relay link, then the following UL subframe subframe (n+ k* y ) can be used for the UL relay link; then, according to the LTE HARQ timing relationship, the downlink subframe corresponding to the UL relay link subframes is selected for the DL relay link.
- Nf be the number of intraframes in the LTE system.
- Nf 10 in the LTE system
- n can be 0, 1, 2, ..., Nf-1
- ⁇ is the UL HARQ retransmission period
- ⁇ 8 in LTE
- k is heavy
- the number of passes can be 1, 2, 3 and other natural numbers.
- For the UL subframe subframe (n+k* y ), (n+k* y ) mod Nf is the subframe number of these UL subframes, and nf+floor ( (n+k* y ) /Nf) is these UL sub-frames.
- UL subframe subframe 0 as the UL relay in frame nf.
- Subframe of the link then UL subframe 8 ( ⁇ frame nf), UL subframe 6 ( ⁇ frame nf +1), UL subframe 4 ( ⁇ frame nf +2), UL subframe 2 ( ⁇ frame nf +3) Can be used for UL trunk links.
- UL subframe 8 ( ⁇ frame nf) it is necessary to transmit a UL grant in DL subframe 4 ( ⁇ frame nf) and a PHICH (Feedback ACK/NACK) in DL subframe 2 ( ⁇ frame nf+1).
- each value of n corresponds to an option, and the subframe for the UL/DL relay link in each option has a certain periodicity, that is, the UL/DL selected in the frame nf.
- every 2 consecutive subframes for the UL relay link have an interval of 8, satisfying the UL HARQ retransmission period 8; in the DL direction, for the UL relay link
- the HARQ timing corresponding to the subframe (the PHICH and the UL grant, the communication between the UE and the RN ⁇ RN can be performed on all remaining subframes, and can still communicate according to the timing constraints of the original LTE HARQ, thereby ensuring Backward compatible.
- RN ⁇ UE_RN On DL subframe ⁇ 0, 4, 5, 9 ⁇ , there are necessary operations such as RN ⁇ UE_RN, eNB ⁇ UE_eNB, such as P/S-SCH, P/D-BCH, Pagingo, if DL trunk link To use these sub-frames, you need to do some special processing.
- the RN communicates with the eNB or with the UE-RN, but cannot simultaneously cooperate with the eNB and the UE-RN. Communication is performed, that is, at any time, the relay link eNB RN and the access link RN ⁇ UE-RN do not exist at the same time.
- the first special processing method for an individual downlink subframe in the embodiment of the present invention is described below.
- UL subframe ⁇ n-4, n+4 ⁇ , DL subframe ⁇ n, n+8 ⁇ is selected according to the selection method of the relay link subframe shown in FIG. 3, and is used for UL.
- a relay subframe of the /DL relay link; and on the DL subframe n, the RN ⁇ UE_RN link has the necessary operations of the LTE system constraint, and the first processing method is the RN-UE-RN link except for performing these necessary operations
- the PDSCH channel and the corresponding PDCCH, PCFICH and other configuration information can also be normally transmitted.
- the first processing method M1 is divided into two cases:
- Case 2 DL subframe n, RN ⁇ UE—The PDSCH channel of the RN link does not contain data transmitted to the UE-RN, and the UE does not need to transmit UL ACK/NACK on UL subframe n+4.
- the UL subframe n+4 can be applied to the relay link. Therefore, Case 2 guarantees the availability of UL subframe n+4 to the trunk link.
- the RN since the access link of UL subframe n-4 is disabled, the RN does not need to transmit i3 ⁇ 4ICH on the access link of DL subframe n. And the RN does not send the UL grant on the access link of the DL subframe n, so that the UE-RN does not transmit data (PUSCH) on the UL subframe n+4, that is, it does not need to be on the access link of the DL subframe n+8.
- PUSCH data
- the RN sends a raiCH to ensure the availability of the DL subframe n+8 to the relay link; If the downlink subframe DL subframe n+8 is configured as an MBSFN (Mult Icast Broadcast Single Frequency Network) subframe, the UL data can be allowed to be transmitted on the uplink subframe n+4, and the corresponding ACK is The /NACK feedback is performed on DL subframe n+8, and the UL scheduling grants the UL grant to be performed on the DL subframe n, and at this time, the non-unicast service part of the MBSFN subframe subframe n+8 can be used for the relay link, and is still guaranteed. Following the availability of the link on the subframe.
- MBSFN Modult Icast Broadcast Single Frequency Network
- the available relay links are UL subframe n-4 and DL subframe n+8; the relay link available in Case 2 is UL subframe ⁇ n-4 , n+4 ⁇ and DL subframe n+8.
- the HARQ timing of the LTE FDD is not met, but the HARQ timing can be flexibly designed according to the characteristics of the relay link, that is, the UL is redesigned according to the available relay link subframes.
- /DL HARQ feedback timing, and timing relationships such as UL scheduling and UL retransmission intervals. If timing similar to LTE TDD HARQ is used, as shown in Table 2, Table 2 shows a timing of HARQ in the periodic frame [nf, nf+p), and other periods are similar.
- - indicates no existence; 0 means that month X means disable; G means grant; P means PHICH;
- the i3 ⁇ 4ICH transmitted by the DL subframe n+8 on the relay link is the ACK/NACK feedback to the PUSCH of the RN sent by the RN on the UL subframe n-4.
- the time interval of the UL subframe n-4 from the next UL retransmission is 16, and the others are all 8s. It can be seen that there is a certain change in the UL retransmission period.
- the UL retransmission uses the asynchronous mode, that is, The eNB needs to transmit in DL subframe n+8 of frame [nf, nf+p) every period, and informs that the retransmission position is at UL subframe n+12, and each subsequent retransmission interval defaults to 8.
- the i3 ⁇ 4ICH transmitted by the DL subframe n+8 on the relay link includes data on two subframes of the UL subframe ⁇ n-4, n+4 ⁇ .
- ACK/NACK feedback the UL grant sent by the DL subframe n+8 on the relay link, includes the scheduling information of the two subframes of the UL subframe ⁇ n-4, n+4 ⁇ , and the remaining subframes are all It is also performed according to the HARQ timing of the LTE FDD, that is, in the first processing method case 2, the UL grant scheduling and PHICH feedback information for multiple UL relay link subframes need to be transmitted on some downlink relay link subframes. .
- the UL retransmission period is 8ms or 16ms, which needs to be notified by asynchronous method or by pre-storing the information.
- the first processing method can be used for all DL subframe processing.
- the following is an example of DL subframe ⁇ 0, 4, 5, 9 ⁇ . Specifically, as shown in Table 3:
- PCFICH Physical Uplink Control Channel
- PDSCH including data, Paging
- PUCCH UL ACK/NACK
- PDCCH (without PHICH and UL grant)
- PDCCH (without PHICH and UL grant)
- PDCCH (without PHICH and UL grant)
- PDCCH (without PHICH and UL grant)
- the following describes a second special processing method for individual downlink subframes in the embodiment of the present invention.
- the second processing method requires that on the DL subframe 0, the RN ⁇ UE-RN link does not perform any other operations except for the necessary operations, that is, does not transmit the PDSCH and the related PDCCH.
- Configuration information such as PCFICH, so the second processing method can be applied only to DL subframeO, as shown in Table 4.
- the second processing method divides DL subframe 0, and the first few OFDM (Orthogonal Frequency Division Multiplexing) symbols are used for the relay link eNB ⁇ RN to send PCFICH, PHICH , UL grant and pilot, at this time the RN is in the receiving state; the following symbols For the access link RN-UE—the RN performs the necessary operations to transmit the P/S-SCH, P-BCH and pilot. At this time, the RN is in the transmitting state, that is, the DL subframe 0 part is used for the relay link, and the RN is used for the relay link. On the access link.
- OFDM Orthogonal Frequency Division Multiplexing
- the embodiment of the present invention is restricted to the DL subframe, and the relay link eNB ⁇ RN does not send data and related configuration information, thereby avoiding simultaneous transmission and reception by the RN. Furthermore, according to the LTE FDD constraint condition (4), it is not necessary to transmit UL ACK/NACKo on the relay link RN ⁇ eNB of UL subframe 4.
- UL Subframe 6 ⁇ frame nf-1 (representing subframe 6 in the frame of frame number nf_1)
- UL subframe 4 ⁇ frame nf
- DL subframe 0@ frame nf
- DL subframe 8@ frame nf It can be used for the relay link.
- the second processing method ensures that the relay link satisfies the timing of the LTE FDD HARQ, that is, the UL retransmission period, the UL grant of the UL data, and the UL ACK/NACK timing relationship of the DL data. . In this way, after the introduction of the relay, the changes to the original system are small, and the complexity of the relay link design is also reduced.
- option ⁇ 0, 2, 4, 6 ⁇ does not contain DL subframe 9, and both contain DL subframe ⁇ 0, 4 ⁇ , abbreviate option ⁇ 0, 2, 4, 6 ⁇ as Group x ;
- each option in option ⁇ l, 3, 5, 7 ⁇ does not contain DL subframe 4, and both contain DL subframe ⁇ 5, 9 ⁇ , abbreviate option ⁇ 1, 3, 5, 7 ⁇ as Group y .
- the Paging message is to be sent in DL subframe 9, and the relay link subframe can select those options without DL subframe 9 or a combination thereof; or those pairs DL subframe 9 uses the first processing method to process the options or a combination thereof; or select the combination of these processed options and options without DL subframe 9.
- a method for selecting a relay link subframe according to an embodiment of the present invention is shown below, as shown in Table 5.
- the DL subframe 4 uses the first processing method to process the options in Group X or a combination thereof; or the combination of the processed options between the two groups is as shown in FIG. 4a.
- the MBSFN subframe is a DL sub- A frame with 2 OFDM symbols in front of it for Unicast service, transmit control channel PCFICH, PHICH and/or UL Grant, pilot.
- the DL relay link may also be located in the MBSFN subframe when the relay subframe selection is performed. At this time, the DL relay link eNB ⁇ RN transmits the part used in the non-unicast service in the MBSFN subframe, that is, each can be used.
- a subframe configured as an MBSFN may be selected as a DL relay link subframe, and in LTE/LTE-A FDD, except for the DL subframe ⁇ subframe n
- n 0, 4, 5, 9 ⁇
- the DL subframes can be configured as MBSFN subframes and can be used for DL relay link subframes.
- a subframe corresponding to a combination of a basic unit or a basic unit is selected as a relay link subframe by using an integer multiple of a frame, wherein the basic unit is characterized by an integer in the frame.
- Each opt ion shown in FIG. 3 corresponds to a basic unit, and the basic unit in FIG. 3 defines a first type of basic unit, which is abbreviated as Alt l, and the feature of Alt l is an integer multiple of the frame, for example, 4 times.
- the interval between the grant (UL grant) and the UL process is 4 ms
- the ACK/NACK feedback interval of the process on the UL subframe is 4 ms
- the retransmission period of the UL process is 8 ms.
- the UL/DL subframe corresponding to the gray pattern in the figure is a set of uplink subframes in an integer multiple (4 times) of the frame.
- the downlink subframe, and satisfying the first HARQ timing feature described above, and the DL subframe interval is 8 ms, the interval of the UL subframe is 8 ms, and the UL subframe number (DL subframe number + 4) mod 40, where Within an integer multiple (4 times) of the frame, the upper/downstream subframe number ranges from 0 to 39.
- the second type of basic unit is defined as Alt2, and the characteristics are: a set of uplink subframes and downlink subframes in which the integer multiples (1 times) of the frame are time units, and the uplink subframes and downlink subframes satisfy the first
- the two types of HARQ timing that is, the ACK/NACK feedback interval of the process on the DL subframe is 4 ms, the interval between the scheduling of the UL process and the transmission of the UL process is 4 ms, and the ACK/NACK feedback interval of the process on the UL subframe For 6ms, the retransmission period of the UL process is 10ms.
- the third type of basic unit is defined as Alt3, which is characterized by: a set of uplink subframes and downlink subframes in units of integer multiples (4 times) of the frame, the UL/DL subframes satisfying the third
- the HARQ timing that is, the ACK/NACK feedback interval of the process on the DL subframe is 4 ms, the interval between the scheduling of the UL process and the transmission of the UL process is 4 ms, and the ACK/NACK feedback interval of the process on the UL subframe is 12ms or 4ms, the retransmission interval of the UL process is 8ms or
- the corresponding UL/DL subframe is a set of uplink subframes ⁇ 1, 17, 25 ⁇ and downlink subframes ⁇ 13, 21, 37 ⁇ in an integer multiple (4 times) of the frame, which satisfy the above-mentioned Three HARQ timing characteristics, that is, at the time of fr ame [n, n+3], the ACK/NACK feedback interval of the process on the DL subframe ⁇ 13, 21, 37 ⁇ is 4 ms;
- the interval between the corresponding UL process transmissions is 4 ms; the ACK/NACK feedback interval of the processes on the UL subframe ⁇ 1, 17, 25 ⁇ is 12 ms, 4 ms, 12 ms, and the UL subframe ⁇ 1, 17, 25 ⁇
- the retransmission period of the process is 16m
- Relay link As shown in Table 6, it is the description of the above three HARQ timings.
- nf represents the frame number, and the number in the column corresponding to "option” is the number of the basic unit option, one for each basic unit, and the number in the column other than "option" Frame number.
- each basic unit of Alt l contains 5 DL subframes, and 5 UL subframes; each basic unit of Alt2 contains 4 DL subframes, and 4 UL subframes; each basic of Alt3 The unit contains 3 DL subframes, and 3 UL subframes.
- the interval between the UL subframes in each basic unit is equal to the retransmission period of the UL process, and the interval between the DL subframes is also equal to the interval between the UL subframes.
- the subframe numbers of the subframes included in each basic unit in Table 7 are either even or odd, so according to the parity feature, the basic unit of the subframe number of the included subframe is even.
- option ⁇ 0, 2, 4, 6, 8 ⁇ is called "Alt2 even”; in Alt2, option ⁇ 1, 3, 5, 7, 9 ⁇ is called "Alt2 odd”.
- the above three basic units Altl, Alt2, and Alt3 each correspond to a HARQ timing.
- the two basic units have coincidences of subframes, that is, there are common UL subframes or DL subframes, and the subframe numbers and frame numbers of the subframes in the two basic units are the same, the two basic units A HARQ timing conflict occurs between the two, and the UL/DL HARQ processes in the two basic units also have a process collision on the UL/DL subframe; that is, according to the HARQ timing of a basic unit, it is required to be in a certain UL or The DL subframes communicate, and according to the HARQ timing of another basic unit, communication also needs to be performed in the UL or DL subframe, and a collision occurs.
- the HARQ timing conflict of the incoming link can be solved by the following methods: 1. Avoiding conflicts by assigning basic units that do not collide to the relay link and the access link respectively; 2.
- HARQ Timing that is, adjusting the HARQ timing of the process in which the collision occurs, such as adjusting the ACK/NAK feedback interval of the UL/DL process, or the interval between the scheduling of the UL process to the UL process transmission, the UL retransmission period, etc., by adjusting the HARQ timing To avoid conflicts; Third, select one of the relay link and the access link for transmission, and abandon the transmission on the other link, then on the subframe where the collision occurs, on the link that has not been abandoned The HARQ process will suffer losses.
- the base station or relay station can distinguish by
- the UE distinguishes the HARQ processes of the two collisions. If the two basic units are used for two different processes of the same UE, a collision occurs, and the resolution of the conflict allows the base station or the relay station to distinguish the two processes by the process number; or to schedule basics that do not collide with each other.
- the subframe corresponding to the unit and its HARQ timing are given to different processes of the same UE to avoid collision.
- R8/9/10-UE the UE
- R8/9/10-UE coexists in multiple versions such as R8/9/10
- the base station or relay station will be in those subframes that fully satisfy backward compatibility.
- the subframes included in all the basic units or the combination of the basic units in Table 7 can be used for the relay link. In the embodiment of the present invention, it is required to perform the selection of the relay link subframe.
- Rel-10 UE, Rel-10 RN, Rel-10 eNB is less modified than Rel-8;
- the UL/DL relay link subframe needs to perform relay transmission on the subframe according to the HARQ timing of the relay link, and also needs to be transmitted on the subframe according to the HARQ timing of the access link;
- the DL relay link subframe does not include a DL subframe that cannot be configured as an MBSFN subframe, and the DL relay link subframe does not include the DL subframe ⁇ 0, 4, 5, 9 ⁇ in the LTE FDD;
- the relay subframes are distributed as evenly as possible within each frame, which is advantageous for delay control and simplicity;
- the Backhaul link needs to have sufficient resources to match the capacity of the access link (including multiple RNs);
- the relay link can share the resources of the subframe with the UE-eNB;
- the basic elements in the options ⁇ 0, 2, 6, 1, 5, 7 ⁇ and Alt3 in Alt2 in Table 7 do not include the subframes in the LTE/LTE-A FDD system that cannot be configured as MBSFN. That is, DL subframes ⁇ 0, 4, 5, 9 ⁇ are not included, so the subframes included in these basic units can be used for the relay link, and the relay link uses this in each subframe of these basic units.
- a basic unit or a combination of basic units in which a meta does not conflict is used by the UE. The details are as shown in Table 8 below: Table 8
- Alt 2 'even refers to Alt2 option ⁇ 0, 2, 6 ⁇ ;
- Alt 2 'odd refers to Alt2 option ⁇ 1, 5, 7 ⁇ ;
- Complement refers to the relay chain A set of basic units complementary to the basic unit [option m] selected by the path, for example, “Alt3 complement” refers to a set of basic units in Alt3 that are complementary to the selected basic unit [option m] of the relay link;
- Alt2 even refers to a collection of basic units in "Alt2 Even” that are complementary to the selected base unit [option m] of the relay link.
- nf be the number of all UL/DL subframes in the time unit of the integer multiple (4 times) of the frame in which the basic unit is located;
- the ratio of the number of frames to the number of UL/DL subframes of the access link is .
- the relationship between the relay link and the access link shown in Table 8 may be as follows:
- n 0, 2, 6;
- subframes of the relay link are given, that is, in the time unit of the integer multiple of the frame, which subframes are configured for the transmission of the relay link, and given
- subframes that satisfy the LTE R8 HARQ timing of the access link and subframes that satisfy the Alt2/Alt3 HARQ timing.
- the subframe used for the R8/9-UE must satisfy the LTE R8 HARQ timing, that is, the subframe in the Altl basic unit; the subframe used for the R10-UE may be the Altl, or the Alt2, or the child in the Alt3 basic unit.
- the HARQ timing corresponding to Alt2 and Alt3 is two HARQ timings that can be used for the relay link. Depending on the configuration mode, the relay link can use only one of the timings or simultaneously. These two timings.
- the location and number of subframes that can be used for the UE are different for the configuration of different relay link subframes, and the number of subframes that can be used for the R8/9-UE can be used.
- the ratio of the number of subframes of the R10-UE is also different, that is, the maximum number of HARQ processes of the relay link in the configuration mode of different relay link subframes, and the supported R8/9-UE and R10-UE.
- the number of ratios is also different, and the maximum number of HARQ processes that can be supported by R8/9-UE and R10-UE is also different.
- the system can reasonably choose the configuration mode according to the actual situation.
- the base station and the relay station can be based on actual conditions, such as the application scenario, such as urban area, suburb, etc.; respective load, service type, and quality of service (QoS); resources owned by the base station, such as resource size, continuous/ Non-continuous spectrum, carrier aggregation; location and number of relay stations placed under the base station; ratio of R8/9-UE to R10-UE; and actual wireless propagation environment characteristics to determine the required relay Link resources, thereby selecting a suitable configuration of a relay link subframe, including number and location, HARQ timing, etc., to implement flexible relay link resource allocation, and to match the capacity of the relay link with the access link.
- the base station By enabling the base station to provide relay transmission, it can also directly serve as many users as possible, thereby increasing the capacity of the network. In the network, the actual situation of each base station is different, so the configuration of the relay link subframe used by each cell selection may be different.
- the configuration of the trunk link subframe is different.
- the configuration of the trunk link subframe used by the actual system may be All of Table 9 may also be a subset selected from Table 9.
- the system can also classify the configuration of the relay link subframes.
- a classification method indexttO corresponds to the case where all the basic units belong to Alt2
- index#l corresponds to the even number basic unit belongs to Alt2
- the odd number basic unit belongs to Alt3
- index#2 corresponds to the odd number basic unit.
- the even unit of the basic unit belongs to Alt3
- inde X #3 corresponds to the case where all the basic units belong to Alt3.
- the configuration of the relay link subframes can be variously classified, and the index classification method shown in Table 9 is only one of them.
- These configuration information includes:
- the validity period of the relay link configuration, and/or the valid flag bit that is, the base station needs to inform the base station according to the system load, the relay channel condition, the relay application scenario, the UE QoS, etc. when notifying the relay link configuration information.
- the validity of the configuration information in time such as in the integer multiple of the frame, the configuration information is valid, such as 1 frame, 4 frames, 32 frames, 64 frames, 128 frames, 256 frames, etc.;
- the valid flag can be set at the same time to show whether the current configuration information is valid. If set to 1 is valid, 0 is invalid. If the current configuration information is invalid, it needs to receive new configuration information.
- the periodic indication the determination of the period value depends on the change of the demand of the subframe of the relay link, and the similar factors mentioned above. Generally, for a fixed relay, a longer period may be used for indication, Moving a relay relatively uses a relatively short period indication.
- the configuration information of the relay link subframe may be as follows:
- the bitmap with the integer multiple of the frame directly indicates the relay link subframe, that is, which subframes are used for the relay link in the period of the integer multiple of the frame, and the configuration in each cycle is the same, where Each bit corresponds to a downlink subframe or an uplink subframe that may be used for the relay link. If the subframe is used for the relay link, the bit corresponding to the subframe is set to 1, and is set to 0.
- the number of bits in the bitmap is equal to the number of all downlink subframes or uplink subframes that may be used for the relay link in integer multiples of the frame.
- the basic unit bitmap method using bitmap to indicate which basic units are used for the relay link, where each bit corresponds to a basic unit that may be used for the relay link, if the basic unit is used for the relay chain
- the way is to set the bit corresponding to the basic unit to 1, and vice versa.
- the number of bits in the bitmap is equal to the number of basic units that may be used for the relay link.
- a subframe in a base unit or a base unit combination is configured as a relay link subframe.
- bitmap of the downlink subframe group use the bitmap to indicate which downlink subframe groups in the period of the integer multiple of the frame are used for the relay link, and each bit corresponds to a downlink that may be used for the relay link.
- a subframe group where the downlink subframe group is composed of a group of downlink subframes with a specific subframe interval, where the subframe interval is the weight of the relay link UL HARQ An integer multiple of the transmission interval of the interval or ULHARQ.
- the number of bits of the Bitmap may be used for the number of downlink subframe groups of the relay link, and the bitmap of the initial subframe. Let M be the number of downlink/uplink subframes in the integer multiple of the frame period.
- bitmap When the system uses the Bitmap method to indicate, one bit is used to correspond to the value of a, and the bit is set to 1, indicating that a can take the corresponding value, and the bit is set to 0, indicating that a cannot go to the corresponding value.
- bitmap a plurality of values of a are obtained, and then for each value of the obtained a, a set of downlink subframes and uplink subframes are respectively obtained according to the above formula, and the subframes are used for relay link transmission.
- the configuration information of the foregoing relay link link may be notified by a system message or by a high layer configuration, or may be notified at the initialization of the relay station, or notified during the process of the relay station accessing the base station.
- the relay station can then select the appropriate subframe and HARQ timing for use by the served UE according to the rules shown in Table 9 above.
- the base station can preferentially configure MBSFN subframes used by those non-relay links for the service. If the configuration of the relay link subframes of the respective base stations/relay stations is different, it is necessary to perform negotiation between the base stations/relay stations through the network side, and configure the MBSFN sub-frames of the non-relay link link subframes common to the base stations/relay stations. Frames are used for MBMS services in the same multicast service area. If there is no common subframe available for the MBMS service in each base station/relay station in the same multicast service area, the range of the multicast service area may be appropriately adjusted, and/or the middle of some base stations/relay stations may be adjusted. Following the link subframe configuration, such a subframe that is commonly available for MBMS service occurs in the zone.
- the guard time may be reserved according to the synchronization error/transmission delay and the need for the transmission state transition time of the relay.
- the protection time is located in the relay subframe. During the protection time, the relay does not send and receive data, and can be switched between idle (IDLE) and/or transceiving state.
- the length of the guard time can be taken as K times the LTE sampling interval, where K is an integer, for example, K is a divisor of the number of Fourier transform points, as shown in FIG. 5.
- Ctrl in FIG. 5 indicates that a PFICH, a PHICH, a UL grant, or a pilot is transmitted on the RN UE-RN link.
- the guard time needs to be reserved in the header of the DL subframe n; if the DL subframe n+ l is used for the connection For the ingress RN UE-RN, the guard time needs to be reserved at the end of the DL subframe n.
- the DL subframe n is divided into two types (Type):
- Type 1 , DL subframe n does not exist on the access link RN UE-RN communication, in this case only need to leave protection time at the beginning and the end of the subframe;
- Type2 if there is communication on the access link RN UE-RN, such as PCFICH, PHICH, UL grant or pilot, on the selected DL relay link subframe DL subframe n, just press FIG. 5
- the mode shown is reserved for the protection time.
- the Ctrl in Fig. 5 includes one or all of these pieces of control information.
- the reserved guard time may not utilize the unicast OFDM symbol time preceding the MBSFN subframe, or may partially utilize or fully utilize the unicast OFDM symbol in front of the MBSFN subframe. time.
- the partial guard time uses the MBSFN subframe unicast OFDM symbol
- the guard time of the relay link subframe header uses the front 2 OFDM symbols of the MBSFN subframe, and in the subframe The tail needs to be additionally protected for relay status and/or transmission delay.
- the total length of the guard time in the first and last parts of the relay subframe is used by the eNB for the unicast service.
- 0FDM symbol length (1 0FDM symbol or 2 0FDM symbols).
- the guard time in front of the relay subframe and the subsequent guard time each account for half of the MBSFN subframe unicast OFDM symbol.
- a Type 2 OFDM symbols in front of a relay link subframe are still used for accessing a unicast service on a link RN UE-RN, and the next guard time and the tail guard time in the subframe are required. Additional, for relaying transceiver status transitions and/or transmission delays.
- 9 is a form of unicast OFDM symbols in which the guard time does not utilize the MBSFN subframe, that is, when the eNB and the RN subframe have an offset as shown in FIG. 9, the RN is in front of the relay link subframe.
- Figure 10a shows Type 2, that is, the unicast service in the RN relay subframe, and the protection time when the eNB and the RN subframe are offset.
- the guard time length of the relay subframe in Figure 10a is an integer multiple of the LTE sampling interval, as may be 1 OFDM symbol.
- the guard time of the corresponding UL relay subframe needs to be satisfied as K times the sampling interval, where K is an integer, for example, K is a divisor of the Fourier transform points.
- the guard time is within the relay subframe.
- the first processing method is used to process the DL subframeO of each opt ion in the Group, and each of the Group y
- the DL subframe ⁇ 5 , 9 ⁇ of opt ion is given in Table 12.
- the second processing method is used to process the DL subframe 0 of each opt ion in Group x, and Table 13 is obtained.
- the first processing method is used to process the DL subframe ⁇ 0, 4 ⁇ of each opt ion in Group x, and the DL subframe ⁇ 5, 9 ⁇ of each opt ion in Group y is obtained in Table 14.
- DL I (y) indicates that subframe y is not used as a relay subframe and is used for access link RN_>UE-RN, as shown in Table 3
- Remark I ⁇ indicates the processing for or not used for the relay link, I, indicates that the relay link is not used; ( ⁇ ) indicates that special processing is required, as follows:
- DL I (y ) indicates that subframe y is not used as a relay subframe for access link RN_>UE-RN; and DL / ( y ) and UL ⁇ x ⁇ are mutually processed;
- Table 15 According to the aforementioned subframe selection method, Table 16 specifically shows the selection of several relay link subframes.
- the option 0 does not include DL subframe9, and only needs to process DL subframe 0. Since the first processing method is divided into two cases, the following two cases are analyzed:
- Remark X indicates that the link is forbidden to use
- DL subframe 9 can be used to receive Paging messages
- DL subframe ⁇ 0, 5 ⁇ can be used to receive synchronization and broadcast information. Only UE-RN cannot transmit UL data on UL subframe 4@frame nf+2.
- the HARQ of the relay link is in accordance with the principle of Table 2, and the specific timing is shown in Table 18.
- the DL subframe 0 in option 0 is processed using the method of the first processing method case 2, as shown in Table 19:
- UE_RN pilot pilot
- PDSCH data including
- the standby X indicates that the link is forbidden to use
- the link can be used normally.
- option combination is to arrange the relay link subframes selected by the two independent options in chronological order, each relay link. The processing of the frame is still processed according to the original option, and the HARQ relationship also maintains the relationship in the original option.
- This is also an embodiment of the independent features of each option. This feature makes the combination of options simple to operate. In an actual system, you can determine the number of combinations of options based on the actual service status of the trunk link. If the traffic is not large at the beginning, select an option. After a period of time, the traffic increases, and an option is added. , forming a combination of options.
- the number of combinations of options can be greater than or equal to 2, which means that more than 2 options can be combined.
- the operations of the other option combinations in Table 12 and Table 13 are similar to the above methods, and are not described here.
- RN-UE-RN has no other operations, ie
- the standby X indicates that the link is forbidden to use
- OptionO-M2 not only ensures that the access link RN -> UE - RN is not affected, and ensures that the HARQ timing of the relay link fully satisfies the timing relationship of LTE FDD.
- the first processing method of the second method is used to process the DL subframe ⁇ 0, 4, 5, 9 ⁇ in the option, thereby obtaining the table 22.
- the bitmap mode with one frame period is applied to the case where the configuration of the relay link subframes on each frame is the same, and only 6 bits of notification information is required.
- the frames are used by the R10-UE, and these UEs use the HARQ timing corresponding to Alt2 on these subframes.
- the maximum DL/UL process number of the UE using the HARQ timing corresponding to Alt l is 4, and the maximum DL/UL process number of the UE using the HARQ timing corresponding to Alt2 is 8
- the maximum number of DL/UL processes for the trunk link is 2.
- the DL subframes ⁇ 1, 2, 3, 7 ⁇ can be used for the MBMS service of the relay station. If the DL subframes available to the other base stations/relays in the same MBMS service area as the base station/relay station are available for the MBMS service are ⁇ 2, 3, 6 ⁇ , the common DL subframes ⁇ 2, 3 ⁇ can be configured to be used for MBSFN subframe of MBMS service. This can be configured by one frame bitmap in LTE.
- the unit combination mode is used for the relay link, and will not be described here.
- the UE uses the HARQ timing corresponding to Alt2.
- the maximum DL/UL process number of the UE using the HARQ timing corresponding to Alt l is 4, and the maximum DL/UL process number of the UE using the HARQ timing corresponding to Alt2 is 7.
- the maximum number of DL/UL processes for the trunk link is 3.
- the DL subframes ⁇ 2, 6, 8 ⁇ can be used for the MBMS service of the relay station, and can be configured by one frame bitmap.
- the basic unit combination is used for the relay link, and will not be described here.
- An example of 2, 6, 1, 5, 7 is that in the time unit of frame [n, n+3], the number of subframes used for the relay link is 24, corresponding to the relay link and The number of subframes of the access link is 24:16.
- Table 9 there is no basic unit in Alt l, that is, a subframe that does not fully satisfy the HARQ timing of LTE R8 is used for the R8/9-UE, and the R8/9-UE is in the access link.
- the maximum DL/UL process number of the UE using the HARQ timing corresponding to Alt2 is 4, and the maximum DL/UL process number of the relay link is 6.
- the time unit of an integer multiple of the frame except for all DL subframes ⁇ 0, 4, 5, 9 ⁇ which are not configurable as MBSFN subframes, and the remaining DL subframes are used for the relay link, then Under the configuration, multicast MBMS services cannot be supported.
- Alt2 option m 0, 2, 6, 1, 5, 7
- the way in which k basic units are combined is used for the relay link, lk 6, and will not be described again here.
- FIG. 10e in another embodiment of the present invention, four basic unit combinations Alt2 option ⁇ 0, 2, 6 ⁇ and Alt3 ⁇ 5 ⁇ are used for the relay link, which is corresponding to index 1 in Table 9.
- the relay station under the base station may be notified by using a bitmap of four frames as a period, and the DL/UL subframe number of the time units of the four frames is 0, 1, 2, ... 39.
- the bitmap information in units of four frames is "110101010111010101011101" to indicate as shown in Fig. 10e.
- M is the total number of UL subframes in the integer period of the frame, and is also used for the relay link.
- the bitmap mode in units of integer multiples (>1) of the frame is generally used for the case where the relay link subframe configuration of each frame is different, and more notification information is required at this time, such as 24 bits.
- the indication of the bitmap of the basic unit requires only 8Bit to inform the information.
- the maximum DL/UL process number of the UE using the HARQ timing corresponding to Alt1 is 3, and the maximum DL/UL process number of the UE using the HARQ timing corresponding to Alt2 is 4.
- the maximum number of DL/UL processes for the trunk link is 4.
- the MBMS service of the relay station can be used. It can be configured by four frame bitmaps.
- k basic units are combined is used for the relay link, lk 7, and will not be described again here.
- Alt2 option ⁇ l, 5, 7 ⁇ and Alt3 ⁇ 0, 4 ⁇ are used for the relay link, which is an example of index 2 in Table 9,
- the manner in which three second-class basic units and two third-type basic units are combined, and at this time, the number of subframes used for the relay link is 18 in the time unit of fr ame [n, n+3],
- the ratio of the number of subframes of the corresponding relay link to the access link is 18:22.
- the base station determines to use the relay link subframe as shown in FIG. 10f according to its actual situation, the above-mentioned similar bitmap indication manner in units of four frames, or the indication manner of the bitmap of the basic unit, may be obtained.
- the relay station can allocate Alt l option k according to the relationship shown in Table 9, and the subframe corresponding to 6 is used by the R8/9/10-UE, and in these sub-frames.
- the maximum DL/UL process number of the UE using the HARQ timing corresponding to Alt l is 2
- the maximum DL/UL process number of the UE using the HARQ timing corresponding to Alt2 Yes 4 the maximum number of DL/UL processes for the trunk link is 5.
- the MBMS service of the relay station can be used. It can be configured by four frame bitmaps.
- the base station determines to use the trunk link subframe as shown in FIG. 10g according to its actual situation, the above-mentioned similar bitmap indication manner in units of four frames, or the indication manner of the bitmap of the basic unit, may be obtained.
- the maximum DL/UL process number of the UE using the HARQ timing corresponding to Alt l is 6, and the maximum DL/UL process number of the UE using the HARQ timing corresponding to Alt2 is 4, and the maximum DL/UL process of the relay link The number is 2.
- the transmission and reception conversion time needs to be reserved at the beginning and the end of each UL subframe. If two UL subframes are connected, only the UL subframes ⁇ 0, 1 ⁇ in the frame n of the two UL subframes are connected to each other. Therefore, in the time unit of frame [n, n+3], except for the DL subframes ⁇ 0, 4, 5, 9 ⁇ and the subframes used for the relay link, the MBMS service of the relay station can be used. It can be configured by means of four frame bitmaps.
- the way in which any k basic units are combined is used for the relay link, lk 8, and will not be described here.
- the number of subframes is nine, and the ratio of the number of subframes of the relay link to the access link is 9:31.
- the base station determines to use the relay link subframe as shown in FIG. 10h according to its actual situation, the above-mentioned similar bitmap indication manner in units of four frames, or the indication manner of the bitmap of the basic unit, may be obtained.
- the maximum DL/UL process number of the UE using the HARQ timing corresponding to Alt l is 5, and the maximum DL/UL process number of the UE using the HARQ timing corresponding to Alt2 is 7, and the maximum DL/UL process of the relay link The number is 3.
- the MBMS service of the relay station can be used. It can be configured by four frame bitmaps.
- the basic unit combination is used for the relay link, lk 4, and will not be described here.
- Alt 3 option ⁇ 0, 2, 4, 6 ⁇ is the same as the configuration of the relay link subframe shown by the indexO first case Alt 2 option ⁇ 0, 2, 6 ⁇ in Table 9.
- the subframe included in the Alt3 option ⁇ 0, 1, 2, 3, 5, 6, 7 ⁇ is used for the relay link, which is the index in Table 9.
- the number of subframes used for the relay link is 21, corresponding to the number of subframes of the relay link and the access link.
- the ratio is 21: 19.
- the base station determines to use the relay link subframe as shown in FIG. 10i according to its actual situation, the above-mentioned similar bitmap indication manner in units of four frames, or the indication manner of the bitmap of the basic unit, may be obtained.
- the maximum DL/UL process number of the UE using the HARQ timing corresponding to Alt l is 1, and the maximum DL/UL process number of the UE using the HARQ timing corresponding to Alt2 is 4, and the maximum DL/UL process of the relay link The number is 7.
- the MBMS service of the relay station can be used. It can be configured by four frame bitmaps.
- the configuration of the relay link subframe used is a subset of the configuration manners shown in Table 9, and the configuration manners are as shown in Table 23.
- the number of basic units for the relay link is classified from small to large, and is essentially classified in terms of the number of UL/DL subframes used for the relay link from small to large.
- any of the definitions of the classification shown in Table 9 can be selected.
- a configuration of a trunk link subframe is shown in Table 23 as an example. At this time, in the integer multiple (4 times) unit of the frame, the number of subframes used for the relay link is 4* (index+1), and the ratio of the number of subframes of the relay link to the access link is 4.
- Nf integer multiple of the frame (4 times)
- the HARQ timing on the relay link and the access link as shown in Table 11 can be specifically as shown in Table 24.
- the HARQ timing on the relay link and the access link is relatively simple and easy to implement.
- the configuration of the relay link subframes used is a subset of the configuration manners shown in Table 9, and the configuration manners are as shown in Table 25.
- the configuration of the trunk link subframe shown in the system indication table 25 is as follows:
- Header field used to indicate the type of HARQ timing used by the relay link, set to 1 HARQ timing corresponding to "UL HARQ retransmission period is 10ms"; set 0 to correspond to "UL HARQ retransmission period is an integer multiple of 8ms" "HARQ timing.
- bit i is set to "1" to indicate that the corresponding DL subframe is used for the relay link
- the corresponding UL subframe (n+4) mod 10 Also used for relay links; otherwise, set to "0”.
- the HARQ timing of the UL HARQ retransmission period of 10 ms is used on these subframes.
- bit i 8bits
- bit i 8bits
- inde X l
- the HARQ timing on the relay link and the access link is relatively simple. Only one HARQ timing can exist on the relay link in each configuration, which is easy to implement in the system and can satisfy the relay link subframe. Flexible configuration and backward compatibility and evolution of the future network.
- the embodiment of the present invention is also applicable to the LTE network and the LTE-A network.
- the embodiment of the present invention provides a data transmission method for the network node, where the network node is specifically an LTE-A UE and an LTE UE, and the method includes
- the subframe is selected in units of integer multiples of the frame, only the LTE-A UE is provided with a dedicated service, and the LTE UE and the LTE-A UE are served on the unselected subframe
- the unit includes a basic unit or a combination of a plurality of basic units, the basic unit being a set of uplink subframes and downlink subframes in integer multiples of frames, the subframes satisfying a certain HARQ timing, and UL
- the interval between the subframes is a UL retransmission period, the interval between the DL subframes is equal to the interval between the UL subframes, and the subframe number of the UL subframe is equal to the subframe number of the DL subframe +0
- the method ensures that the LTE-A network is more unique than the LTE network, that is, the network can serve UE-LTE and UE-LTE-A at the same time, and only provides some proprietary service scenarios for the UE-LTE-A, thereby Realize the effective integration of LTE and LTE-A.
- the specific method may be: selecting some subframes for the UE-LTE-A dedicated, and providing dedicated services for the UE-LTE-A on the subframes; and in the remaining subframes, the eNBs are both UE-LTE and UE- LTE-A provides general services.
- the foregoing method for selecting a relay link subframe in the embodiment of the present invention is fully applicable to selecting a dedicated subframe for UE-LTE-A.
- the eNB, the UE-LTE, and the UE-LTE-A will communicate according to the mode shown in FIG. 11, where T2 is a dedicated sub-selection for UE-LTE-A. Frame; T1 is the remaining subframe to serve UE-LTE and UE-LTE-A at the same time.
- the dedicated subframes of UE-LTE-A are as shown in Table 27:
- the eNB schedules the DL data on the DL subframe n, where ⁇ 0, 4, 5, 9 ⁇ , there are two situations, as shown in Table 28:
- Case 2 The eNB does not schedule the DL data for the UE-LTE, and the UE does not need to feed back the UL ACK/NACK to the eNB on the UL subframe n+4.
- the subframe selection manner as shown in Table 9 can also be used, except that the subframe used for the relay link is used for providing LTE-
- the subframe of the A-Private service is used by the LTE-A UE, and the subframe corresponding to the Alt1 basic unit is used by the LTE UE; and the collision between the LTE UE and the LTE-A UE without the HARQ process is guaranteed.
- the configuration shown in Table 29 is used, there will be a collision between the LTE UE and the LTE-A UE, and the collision process may be distinguished by distinguishing the UE.
- the LTE FDD constraint can be ensured between the UE and the LTE eNB, and the normal communication between the UE and the LTE is not affected, thereby effectively integrating the LTE and the LTE-A network.
- the embodiment of the present invention is also a processing method for smooth evolution from LTE to LTE-A, that is, according to the method and related processing in the embodiment of the present invention, some subframes in the LTE network are selected to provide LTE for UE-LTE-A.
- -A network is unique to LTE networks.
- FIG. 12 it is a structural diagram of a network node according to an embodiment of the present invention, where the network node includes:
- the receiving module 121 is configured to receive relay link subframe information, where the relay link subframe is configured in a subframe that is an integer multiple of a frame period, and has a specific hybrid automatic retransmission HARQ timing;
- the transmitting module 122 performs a relay link transmission according to the relay link subframe determined by the relay link subframe information received by the receiving module.
- the network node provided in this embodiment may perform the method provided by the foregoing embodiment of the present invention.
- the configuration of the relay link subframe in this embodiment is described in the method in the foregoing embodiment, and details are not described herein again.
- the present invention can be implemented by hardware, and can also be implemented by means of software plus necessary general hardware platform.
- the technical solution of the present invention may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a USB flash drive, a mobile hard disk, etc.), including several The instructions are for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various embodiments of the present invention.
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2011122823/07A RU2486711C2 (ru) | 2008-11-07 | 2009-11-28 | Способ ретрансляционной передачи и сетевой узел |
EP09824435.3A EP2339891B1 (en) | 2008-11-07 | 2009-11-28 | Method and network node for relay transmission |
KR1020117012038A KR101267403B1 (ko) | 2008-11-07 | 2009-11-28 | 릴레이 전송 방법 및 네트워크 노드 |
BRPI0921215-9A BRPI0921215B1 (pt) | 2008-11-07 | 2009-11-28 | método de retransmissão e nó de retransmissão |
JP2011534997A JP5362020B2 (ja) | 2009-04-23 | 2009-11-28 | リレー伝送方法およびネットワークノード |
KR1020127032980A KR20130004394A (ko) | 2009-04-23 | 2009-11-28 | 릴레이 전송 방법 및 네트워크 노드 |
US13/103,627 US8897199B2 (en) | 2008-11-07 | 2011-05-09 | Relay transmission method and network node |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200810176058.6 | 2008-11-07 | ||
CN200810176058 | 2008-11-07 | ||
CN2009101374523A CN101741452B (zh) | 2008-11-07 | 2009-04-23 | 中继传输方法和网络节点 |
CN200910137452.3 | 2009-04-23 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/103,627 Continuation US8897199B2 (en) | 2008-11-07 | 2011-05-09 | Relay transmission method and network node |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010051780A1 true WO2010051780A1 (zh) | 2010-05-14 |
Family
ID=42152519
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2009/075198 WO2010051780A1 (zh) | 2008-11-07 | 2009-11-28 | 中继传输方法和网络节点 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8897199B2 (zh) |
EP (1) | EP2339891B1 (zh) |
KR (1) | KR101267403B1 (zh) |
RU (1) | RU2486711C2 (zh) |
WO (1) | WO2010051780A1 (zh) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103001752A (zh) * | 2012-12-24 | 2013-03-27 | 新邮通信设备有限公司 | 一种基于过渡无线帧的动态tdd混合重传方案 |
CN103039031A (zh) * | 2010-06-09 | 2013-04-10 | Lg电子株式会社 | 执行harq处理的方法和使用该方法的装置 |
US8797896B2 (en) | 2010-08-25 | 2014-08-05 | Futurewei Technologies, Inc. | System and method for assigning backhaul resources |
JP2014209774A (ja) * | 2010-09-17 | 2014-11-06 | 華為技術有限公司Huawei Technologies Co.,Ltd. | 基地局及びユーザ端末 |
US9247479B2 (en) | 2010-09-02 | 2016-01-26 | Intel Deutschland Gmbh | Resource allocation in a mobile communication system |
JP2016067020A (ja) * | 2011-02-07 | 2016-04-28 | インターデイジタル パテント ホールディングス インコーポレイテッド | ライセンス免除スペクトルにおいて補助的セルを機能させるための方法および装置 |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010150952A1 (en) * | 2009-06-23 | 2010-12-29 | Lg Electronics Inc. | Method for transmitting scheduling information in mobile communication system and femtocell base station apparatus using the same |
US9049739B2 (en) * | 2009-06-23 | 2015-06-02 | Lg Electronics Inc. | Apparatus for transmitting a signal using scheduling information in a mobile communication system and method for same |
CN102378374B (zh) * | 2010-08-23 | 2014-10-08 | 华为技术有限公司 | 一种回程链路资源的分配方法和设备 |
CN106850166B (zh) * | 2011-03-11 | 2020-11-06 | Lg电子株式会社 | 在无线通信系统中设置动态子帧的方法及其设备 |
US10085164B2 (en) | 2011-04-28 | 2018-09-25 | Qualcomm Incorporated | System and method for managing invalid reference subframes for channel state information feedback |
TR201104728A2 (tr) * | 2011-05-13 | 2012-12-21 | Aselsan Elektron�K Sanay� Ve T�Caret Anon�M ��Rket� | Yardımlaşmalı, esnek ve yönlendirme koordinasyonu gerektirmeyen bir aktarma sistemi ve yöntemi. |
US9515808B2 (en) | 2011-07-26 | 2016-12-06 | Qualcomm Incorporated | Transmission of control information in a wireless network with carrier aggregation |
CN102307060B (zh) * | 2011-08-31 | 2015-08-19 | 电信科学技术研究院 | 一种传输数据的方法和设备 |
US10673602B2 (en) * | 2011-09-30 | 2020-06-02 | Innovative Sonic Corporation | Method and apparatus for improvement of TDD inter-band carrier aggregation in a wireless communication system |
WO2013095041A1 (ko) * | 2011-12-23 | 2013-06-27 | 엘지전자 주식회사 | 무선 통신 시스템에서 무선 자원 동적 변경에 기반한 신호 송수신 방법 및 이를 위한 장치 |
CN103634081A (zh) * | 2012-08-20 | 2014-03-12 | 中兴通讯股份有限公司 | 一种基于lte的超远距离覆盖通信的方法、系统及设备 |
CN104662951B (zh) | 2012-10-26 | 2019-06-04 | 英特尔公司 | 用户平面拥塞的报告 |
MX2015009366A (es) * | 2013-01-31 | 2015-09-23 | Ericsson Telefon Ab L M | Partición de recursos basados en tdm entre dos estaciones base de radio. |
US9287964B2 (en) | 2013-03-11 | 2016-03-15 | Intel Corporation | Millimeter-wave relay device with bounded delay and method for retransmission of symbols |
CN104104486A (zh) * | 2013-04-12 | 2014-10-15 | 北京三星通信技术研究有限公司 | 一种支持多子帧调度上行数据传输的方法和设备 |
KR102282371B1 (ko) * | 2013-12-13 | 2021-07-27 | 삼성전자주식회사 | 디바이스 대 디바이스 방식을 지원하는 통신 시스템에서 하이브리드 자동 반복 요구 송신과 디바이스 대 디바이스 송신간의 충돌을 방지하는 장치 및 방법 |
EP3098995B1 (en) * | 2014-03-10 | 2020-01-08 | Huawei Technologies Co., Ltd. | Data transmission method, sender device and receiver device |
US10405329B2 (en) * | 2014-05-09 | 2019-09-03 | Lg Electronics Inc. | Method for transmitting and receiving D2D signal in wireless communication system, and apparatus therefor |
WO2016015296A1 (zh) | 2014-07-31 | 2016-02-04 | 华为技术有限公司 | 中继实现方法和设备 |
US10588031B2 (en) | 2015-08-09 | 2020-03-10 | Lg Electronics Inc. | Method for performing relay functions at ue in wireless communication system and apparatus therefor |
US10368329B2 (en) | 2016-04-11 | 2019-07-30 | Qualcomm Incorporated | Synchronization for standalone LTE broadcast |
WO2018195917A1 (zh) * | 2017-04-28 | 2018-11-01 | Oppo广东移动通信有限公司 | 消息传输方法、装置及系统 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101166055A (zh) * | 2006-10-18 | 2008-04-23 | 华为技术有限公司 | 多跳中继方法和多跳中继系统 |
WO2008049028A1 (en) * | 2006-10-17 | 2008-04-24 | Intel Corporation | Device, system, and method for partitioning and framing communication signals in broadband wireless access networks |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2205512C1 (ru) * | 2002-04-25 | 2003-05-27 | Приходько Виктор Владимирович | Система подвижной радиосвязи |
MXPA05012228A (es) * | 2003-05-28 | 2006-02-10 | Ericsson Telefon Ab L M | Metodo y sistema para las redes de comunicaciones inalambricas utilizando retransmision. |
JP4652846B2 (ja) * | 2004-03-11 | 2011-03-16 | パナソニック株式会社 | 通信端末装置および通信中継方法 |
US7214895B2 (en) * | 2004-07-01 | 2007-05-08 | Rockwell Automation Technologies, Inc. | Illuminated disconnecting handle for use with CDM |
JP2006246002A (ja) | 2005-03-03 | 2006-09-14 | Kddi Corp | マルチホップセルラシステムにおける上位局及びその無線リソースリユース方法 |
US20070104223A1 (en) * | 2005-11-04 | 2007-05-10 | Samsung Electronics Co., Ltd. | Apparatus and method for supporting multiple links by grouping multiple hops in a multi-hop relay cellular network |
US8811456B2 (en) | 2006-04-19 | 2014-08-19 | Qualcomm Incorporated | Apparatus and method of low latency multi-hop communication |
EP1848165A3 (en) * | 2006-04-19 | 2011-05-04 | Samsung Electronics Co., Ltd. | Relay service in a multi-hop relay broadband wireless access communication system |
US20080075094A1 (en) * | 2006-09-26 | 2008-03-27 | Electronics And Telecommunications Research Institute | Method and apparatus for using and relaying frames over mobile multi-hop relay systems |
JPWO2008044318A1 (ja) | 2006-10-13 | 2010-02-04 | 富士通株式会社 | 無線基地局、中継局、及び通信制御方法 |
JP5251512B2 (ja) * | 2006-10-25 | 2013-07-31 | 富士通株式会社 | 無線基地局,中継局,無線通信システムおよび無線通信方法 |
WO2008106797A1 (en) * | 2007-03-02 | 2008-09-12 | Nortel Networks Limited | Methods and systems for wireless networks with relays |
CN101282155B (zh) | 2007-04-05 | 2012-09-26 | 中兴通讯股份有限公司 | 一种实现主、从基站共享中继的传输方法 |
KR101114676B1 (ko) * | 2007-08-14 | 2012-03-05 | 노키아 코포레이션 | 재송신에 대한 리소스 스케줄링 방법과 장치 및 프로그램 저장 장치 |
CN101884190B (zh) * | 2007-10-02 | 2014-10-29 | 诺基亚通信公司 | 改进的ack/nack dtx检测 |
KR101397049B1 (ko) | 2008-03-13 | 2014-06-27 | 엘지전자 주식회사 | 자원 분배 정보를 포함하는 서브프레임 생성 방법 |
US8942080B2 (en) * | 2008-04-17 | 2015-01-27 | Texas Instruments Incorporated | Transmission of bundled ACK/NAK bits |
KR101527978B1 (ko) * | 2008-08-06 | 2015-06-18 | 엘지전자 주식회사 | 기지국과 중계기 사이의 서브프레임을 사용하여 통신하는 방법 및 장치 |
-
2009
- 2009-11-28 KR KR1020117012038A patent/KR101267403B1/ko active IP Right Grant
- 2009-11-28 RU RU2011122823/07A patent/RU2486711C2/ru active
- 2009-11-28 EP EP09824435.3A patent/EP2339891B1/en active Active
- 2009-11-28 WO PCT/CN2009/075198 patent/WO2010051780A1/zh active Application Filing
-
2011
- 2011-05-09 US US13/103,627 patent/US8897199B2/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008049028A1 (en) * | 2006-10-17 | 2008-04-24 | Intel Corporation | Device, system, and method for partitioning and framing communication signals in broadband wireless access networks |
CN101166055A (zh) * | 2006-10-18 | 2008-04-23 | 华为技术有限公司 | 多跳中继方法和多跳中继系统 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2339891A4 * |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9621329B2 (en) | 2010-06-09 | 2017-04-11 | Lg Electronics Inc. | Method for performing a HARQ process and apparatus using same |
CN105471556A (zh) * | 2010-06-09 | 2016-04-06 | Lg电子株式会社 | 执行harq处理的方法和使用该方法的装置 |
CN105471556B (zh) * | 2010-06-09 | 2018-12-04 | Lg电子株式会社 | 执行harq处理的方法和使用该方法的装置 |
CN103039031A (zh) * | 2010-06-09 | 2013-04-10 | Lg电子株式会社 | 执行harq处理的方法和使用该方法的装置 |
US9281923B2 (en) | 2010-06-09 | 2016-03-08 | Lg Electronics Inc. | Method for performing a HARQ process and apparatus using same |
US8797896B2 (en) | 2010-08-25 | 2014-08-05 | Futurewei Technologies, Inc. | System and method for assigning backhaul resources |
US9247479B2 (en) | 2010-09-02 | 2016-01-26 | Intel Deutschland Gmbh | Resource allocation in a mobile communication system |
US9980200B2 (en) | 2010-09-02 | 2018-05-22 | Intel Deutschland Gmbh | Resource allocation in a mobile communication system |
JP2014209774A (ja) * | 2010-09-17 | 2014-11-06 | 華為技術有限公司Huawei Technologies Co.,Ltd. | 基地局及びユーザ端末 |
JP2016067020A (ja) * | 2011-02-07 | 2016-04-28 | インターデイジタル パテント ホールディングス インコーポレイテッド | ライセンス免除スペクトルにおいて補助的セルを機能させるための方法および装置 |
US9882684B2 (en) | 2011-02-07 | 2018-01-30 | Interdigital Patent Holdings, Inc. | Method and apparatus for operating supplementary cells in licensed exempt spectrum |
US10153870B2 (en) | 2011-02-07 | 2018-12-11 | InterDigital Patent Holdongs, Inc. | Method and apparatus for operating supplementary cells in licensed exempt spectrum |
CN103001752A (zh) * | 2012-12-24 | 2013-03-27 | 新邮通信设备有限公司 | 一种基于过渡无线帧的动态tdd混合重传方案 |
CN103001752B (zh) * | 2012-12-24 | 2015-06-03 | 新邮通信设备有限公司 | 一种基于过渡无线帧的动态tdd混合重传方案 |
Also Published As
Publication number | Publication date |
---|---|
KR20110102312A (ko) | 2011-09-16 |
EP2339891A1 (en) | 2011-06-29 |
EP2339891B1 (en) | 2016-11-09 |
US8897199B2 (en) | 2014-11-25 |
RU2011122823A (ru) | 2012-12-20 |
US20110216676A1 (en) | 2011-09-08 |
EP2339891A4 (en) | 2011-11-23 |
KR101267403B1 (ko) | 2013-05-30 |
RU2486711C2 (ru) | 2013-06-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2010051780A1 (zh) | 中继传输方法和网络节点 | |
US10966199B2 (en) | Method and apparatus for receiving or transmitting data | |
US10999837B2 (en) | Method for setting dynamic subframe in wireless communication system and device therefor | |
US20210359799A1 (en) | System and Method for a Long-Term Evolution (LTE)-Compatible Subframe Structure for Wideband LTE | |
CN107079238B (zh) | 发送d2d信号的方法及其终端 | |
JP5851557B2 (ja) | 多重harq過程をサポートするバックホール中継のための制御設計 | |
JP5554869B2 (ja) | リレー伝送方法およびネットワークノード | |
US9236979B2 (en) | Apparatus and method for transmitting/receiving control information in a wireless communication system that supports carrier aggregation | |
KR102289116B1 (ko) | 단말간 통신을 지원하는 무선 통신 시스템에서 신호의 송수신 방법 및 장치 | |
RU2627733C2 (ru) | Устройство управления связью, способ управления связью, оконечное устройство, программа и система управления связью | |
CN112564865A (zh) | 用于发送和接收侧链harq反馈信息的方法和装置 | |
EP2730045B1 (en) | Relaying multicast data in a wireless network | |
EP2728780B1 (en) | Response information sending method, receiving method and device | |
KR20120017470A (ko) | 동기 harq 동작 및 간섭 회피를 위한 방법 및 장치 | |
WO2010057446A1 (zh) | 协作多点传输中确定资源映射的方法、网络设备及系统 | |
EP2543219A1 (en) | A method and apparatus for use in a mobile communications system comprising a relay node | |
WO2013135094A1 (zh) | 一种集群业务传输方法及装置 | |
US9603142B2 (en) | Method for radio resources usage reporting in a LTE network and uses thereof for interference reduction and for energy optimization | |
WO2021192111A1 (ja) | 端末及び通信方法 | |
WO2011079718A1 (zh) | 基站、中继节点、中继子帧配置信息的通知方法及系统 | |
CN117413477A (zh) | 用于子带全双工系统的自适应反馈方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09824435 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2011534997 Country of ref document: JP |
|
REEP | Request for entry into the european phase |
Ref document number: 2009824435 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2082/KOLNP/2011 Country of ref document: IN Ref document number: 2009824435 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 20117012038 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2011122823 Country of ref document: RU |
|
ENP | Entry into the national phase |
Ref document number: PI0921215 Country of ref document: BR Kind code of ref document: A2 Effective date: 20110509 |