WO2013044517A1 - Procédé d'émission de signal de liaison montante, équipement utilisateur et station de base dans un système d'émission multipoint coordonnée - Google Patents

Procédé d'émission de signal de liaison montante, équipement utilisateur et station de base dans un système d'émission multipoint coordonnée Download PDF

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Publication number
WO2013044517A1
WO2013044517A1 PCT/CN2011/080491 CN2011080491W WO2013044517A1 WO 2013044517 A1 WO2013044517 A1 WO 2013044517A1 CN 2011080491 W CN2011080491 W CN 2011080491W WO 2013044517 A1 WO2013044517 A1 WO 2013044517A1
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WIPO (PCT)
Prior art keywords
user equipment
uplink signal
node
signal transmission
resource
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PCT/CN2011/080491
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English (en)
Chinese (zh)
Inventor
徐月巧
王轶
张元涛
周华
Original Assignee
富士通株式会社
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Application filed by 富士通株式会社 filed Critical 富士通株式会社
Priority to CN201180072056.2A priority Critical patent/CN103636245A/zh
Priority to PCT/CN2011/080491 priority patent/WO2013044517A1/fr
Publication of WO2013044517A1 publication Critical patent/WO2013044517A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity
    • H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems

Definitions

  • the present invention relates to the field of communications, and in particular, to an uplink signal transmission method, a user equipment, and a base station in a coordinated multipoint system.
  • LTE-A LTE-Advanced
  • CoMP Coordinated Multi-point Transmission/Reception
  • the coordinated multi-point transmission scenario uses the geographically adjacent transmission points to cooperatively transmit signals to the user, and especially for the cell edge users, the signal quality is improved and the coverage is expanded.
  • the point of participation in data transmission/reception (TP/RP, Transmission Point/Reception Point) can be divided into the monthly service node serving point (similar to the servant cell in the LTE Rel-8). Cooperating point.
  • PUCCH Physical Uplink Control Channel
  • Existing PUCCH format 1/la/lb inter-cell interference for HARQ-ACK transmission is performed by cell-specific Cyclic Shift hopping method to perform interference randomization to ensure users in each cell. Transmit PUCCH performance.
  • CoMP in a coordinated multipoint system with different cell identities, for a case where a plurality of UL CoMP points (including an eNB, an RRH, etc.) receive a PUCCH signal of a CoMP UE, CoMP cannot be guaranteed.
  • An embodiment of the present invention provides an uplink signal transmission method, a user equipment, and a base station in a coordinated multipoint system, and aims to: reduce cooperation in a coordinated multipoint system with different cell identifiers for user equipment that receives uplink signals at multiple points. The interference from the user equipment served by the cell.
  • an uplink signal transmission method in a coordinated multipoint system wherein the coordinated multipoint system includes a service node and a cooperation node having different cell identifiers, and the service node and the collaboration The user equipment served by the node; the uplink signal transmission method includes:
  • the user equipment transmits an uplink signal to the serving node and the cooperation node, wherein an uplink signal transmitted by the user equipment is orthogonal to an uplink signal transmitted by other user equipments served by the cooperation node.
  • an uplink signal transmission method in a coordinated multipoint system includes a service node and a cooperation node having different cell identifiers, and by the service node and a user equipment served by the collaboration node; the uplink signal transmission method includes:
  • the serving node receives an uplink signal transmitted by the user equipment, where an uplink signal transmitted by the user equipment is orthogonal to an uplink signal transmitted by other user equipments served by the cooperation node.
  • a user equipment is provided, which is applied to a coordinated multipoint system, where the coordinated multipoint system further includes a service node and a collaboration node having different cell identifiers;
  • An uplink signal transmission unit that transmits an uplink signal to the serving node and the cooperating node, wherein the uplink signal is orthogonal to an uplink signal transmitted by other user equipments served by the cooperating node.
  • a base station for use in a coordinated multipoint system, wherein the coordinated multipoint system further includes a cooperative node having a different cell identity from the base station, and the base station And a user equipment served by the collaboration node; the base station includes: An uplink signal receiving unit receives an uplink signal transmitted by the user equipment, where an uplink signal transmitted by the user equipment is orthogonal to an uplink signal transmitted by other user equipments served by the cooperation node.
  • a computer readable program wherein when the program is executed in a user equipment, the program causes a computer to execute an uplink signal transmission method as described above in the user equipment .
  • a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform an uplink signal transmission method as described above in a user equipment.
  • a computer readable program wherein when the program is executed in a base station, the program causes a computer to perform an uplink signal transmission method as described above in the base station.
  • a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform an uplink signal transmission method as described above in a base station.
  • An advantageous effect of the embodiment of the present invention is that, for a coordinated multipoint system with different cell identifiers, the uplink transmission signal of the user equipment that performs multi-point cooperation and the uplink transmission signal of the user equipment served by the cooperation node are orthogonal, The interference of the user equipment of the neighboring cell can be further reduced, thereby ensuring the performance of CoMP multipoint reception.
  • FIG. 1 is a schematic diagram of a heterogeneous network in which a low-power RRH having different cell IDs exists in a macro cell;
  • FIG. 2 is a schematic diagram of inter-cell interference of a PUCCH sent by a coordinated multi-point receiving in an uplink CoMP scenario
  • FIG. 3 is a schematic diagram of a frame structure of a PUCCH format 1/la/lb with a regular cyclic prefix
  • FIG. 4 is a schematic diagram of a PUCCH format 1/la/lb between user equipments in a cell being orthogonal to each other in a data region and a pilot region, respectively. ;
  • FIG. 5 is a flowchart of an uplink signal transmission method according to Embodiment 1 of the present invention.
  • FIG. 6 is still another flowchart of the uplink signal transmission method according to Embodiment 1 of the present invention
  • FIG. 7 is still another flowchart of the uplink signal transmission method according to Embodiment 1 of the present invention
  • FIG. 8 is an uplink signal transmission according to Embodiment 2 of the present invention
  • FIG. 9 is a flowchart of an uplink signal transmission method according to Embodiment 2 of the present invention
  • FIG. 10 is a schematic diagram of orthogonality of physical resources implemented by the FDM method according to Embodiment 2 of the present invention
  • FIG. 12 is still another schematic structural diagram of a user equipment according to Embodiment 3 of the present invention.
  • Figure 13 is a block diagram showing the structure of a base station according to Embodiment 4 of the present invention.
  • Figure 14 is a block diagram showing still another configuration of a base station according to Embodiment 4 of the present invention.
  • inter-cell CoMP inter-cell CoMP
  • FIG. 1 is a schematic diagram of a heterogeneous network in which a low-power RRH having different cell IDs exists in a macro cell coverage.
  • the low-power RRH coexists in the coverage of the macro-cell base station, but the RRH and the eNB have different cell IDs.
  • the embodiment of the present invention is only described by using the CoMP scenario 3 in the LTE-A system shown in FIG. 1 as an example, but it should be noted that the embodiment of the present invention is not limited thereto, and may be applicable to any cooperation with different cell identifiers. Point system.
  • the embodiment of the present invention relates to a small-area interference problem of a physical uplink control channel (PUCCH, Physical Uplink Control Channel) format 1/1 a/lb for HARQ-ACK transmission in a UL CoMP scenario.
  • PUCCH Physical Uplink Control Channel
  • the following describes the data area of the PUCCH format 1/la/lb as an example.
  • the present invention is not limited to the PUCCH, and can be applied to any other uplink signal transmission.
  • FIG. 2 is a schematic diagram of inter-cell interference of a PUCCH in an uplink CoMP scenario.
  • the CoMP scenario 3 there are multiple low-power RRHs of different cell IDs within the coverage of the macro eNB.
  • the uplink PUCCH signal of the UE1 of the user equipment (UE, User Equipment) at the edge of the RRH1 coverage is jointly received by the macro eNB and the RRH1.
  • the user equipment UE2 of the traditional single-point service within the coverage of the RRH1 is scheduled to be on the same resource block (RB), thereby causing interference to the CoMP UE1.
  • RB resource block
  • the macro eNB is the serving node, RRH1. It is a cooperating point.
  • the path loss (PL, Pathloss) between the cooperative node and the CoMP UE is larger than that of the serving node to the CoMP UE, which is more susceptible to interference.
  • the PUCCH signal transmitted by the UE causes interference to the PUCCH signal of the CoMP UE1, thereby deteriorating cooperation.
  • the node RRH1 demodulates the PUCCH signal of the CoMP UE1, and the gain of the multipoint reception under the UL CoMP is small.
  • PUCCH format 1/la/lb is used for HARQ-ACK bit transmission.
  • 3 is a schematic diagram of a PUCCH format 1/la/lb frame structure having a regular cyclic prefix (CP), as shown in FIG. 3, a pilot signal (DMRS) for data demodulation in one slot (slot). , demodulation reference signal ) occupying the middle three SC-FDMA signals, the PUCCH data area occupies 4 symbols.
  • CP regular cyclic prefix
  • DMRS pilot signal
  • demodulation reference signal occupying the middle three SC-FDMA signals
  • Table 1 shows the PUCCH format 1/la/lb intra-cell and inter-cell interference cancellation method, as shown in Table 1:
  • the PUCCH format 1/la/lb resource passes through the Physical Downlink Control Channel (PDCCH).
  • the PUCCH format 1/la/lb for the HARQ-ACK transmission in the next cell of the conventional CP passes through six cyclic shifts (CS, cyclic shift) and three orthogonal sequences of length 4 (orthogonal). Sequences can support simultaneous co-frequency resource transmission of 18 PUCCH formats 1/la/lb on 1 RB, and at the same time, CS-hopping between cell-specific SC-FDMA symbols (Cell-specific CS hopping over SC- FDMA symbol) achieves randomization of interference between cells.
  • Table 1
  • Figure 4 shows a schematic diagram of PUCCH format 1/la/lb mutually orthogonal among users in a cell. As shown in Figure 4, two cells with the same cell identity in one cell are scheduled to the same time-frequency resource. The same base sequence is used when transmitting PUCCH format 1/la/lb. In the case where two users adopt the same cyclic shift, PUCCH format 1 of UE1 and UE2 can be made by different orthogonal codes (OCC, Orthogonal Cover Code). /la/lb is multiplexed and orthogonal in CDM mode.
  • OFC Orthogonal Code
  • the PUCCH sequence (including the data region and the DMRS region) that is orthogonal between the CoMP UE and the cooperating node user can be designed to eliminate interference of the CoMP UE by the user of the cooperative node, thereby improving the uplink.
  • the CoMP scene receives the performance of the PUCCH signal at multiple points.
  • Embodiments of the present invention provide an uplink signal transmission method in a coordinated multipoint system, where a coordinated multipoint system includes a service node and a collaboration node having different cell identifiers, and a user equipment served by the service node and the collaboration node.
  • the uplink signal transmission method will be described below from the user equipment side.
  • FIG. 5 is a flowchart of an uplink signal transmission method according to an embodiment of the present invention. As shown in FIG. 5, on the user equipment side, the uplink signal transmission method includes:
  • Step 501 The user equipment transmits an uplink signal to the serving node and the cooperation node, where the uplink signal transmitted by the user equipment is orthogonal to the uplink signal transmitted by other user equipments served by the cooperation node.
  • the serving node may be a macro cell base station, and the cooperative node may be an RRH, and the serving node and the cooperative node have different cell identifiers.
  • the service node and the cooperation node may both serve the macro cell base station to jointly serve the user equipment.
  • the specific composition of the coordinated multipoint system can be determined according to the actual situation.
  • orthogonality between the CoMP UE and the UE served by the cooperative node may be implemented by using Code Division Multiplexing (CDM).
  • CDM Code Division Multiplexing
  • FIG. 6 is still another flowchart of an uplink signal transmission method according to an embodiment of the present invention. As shown in FIG. 6, on the user equipment side, the uplink control channel transmission method includes:
  • Step 601 processing a cyclic shift of the user equipment, so that the symbol is used on each symbol.
  • the difference between the hopping value of the cyclic shift of the household device and the hopping value of the cyclic shift of other user equipments served by the cooperative node is unchanged;
  • Step 602 The user equipment transmits an uplink signal to the serving node and the cooperation node according to the processed cyclic shift and an orthogonal sequence different from other user equipments.
  • the UE2 shown in FIG. 2 and the other user equipments served by the cooperative node are exemplified by the UE2 shown in FIG. 2 as an example.
  • the PUCCH signal sent by the UE1 is received by the macro eNB and the RRH1, and the UE2 belongs to the single-point service user of the RRH1 coverage.
  • ⁇ a u , a 12 , a 13 , a 14 ⁇ and ⁇ ⁇ 21 , ⁇ 22 , ⁇ 23 , ⁇ 24 ⁇ represent the sequence ⁇ used by UE1 and UE2 in PUCCH format 1/la/ The CS hop value on the four SC-FDMAs in the data area of lb.
  • the cyclic shift of the user equipment may be processed, so that the hopping value of the cyclic shift of the user equipment on each symbol, and other user equipments served by the cooperative node The difference between the transition values of the cyclic shift does not change.
  • equation (4) can be further expressed as: Because
  • UE1 and UE2 use different orthogonal sequences, that is, and ⁇ 2 are orthogonal to each other, so that ⁇ 1 ⁇ 1 ⁇ ) ⁇ . Therefore, the orthogonality between UE1 and UE2 can be finally realized. .
  • the step 601 may specifically include: turning off the cyclic shift, stopping the cyclic shift of the user equipment, and other user equipments of the cooperative node service scheduled to the same time-frequency resource as the user equipment. . That is, for the user equipment, an instruction sent by the service node to stop the cyclic shift of the user equipment may be received; according to the instruction, the cyclic shift of the user equipment is turned off.
  • the serving node may send an indication to the user equipment (for example, UE1) to disable the CS hopping, which may be indicated by higher layer signaling.
  • the user equipment turns off the CS hopping function of the PUCCH format 1/la/lb.
  • the serving node sends an indication of turning off the CS hopping to the cooperating node through the backhaul interaction mode of the fiber connection/X2 interface, etc.
  • the coordinating node dispatches the user to the same time-frequency resource that is served by the UE1.
  • the device eg, UE2 sends an indication to turn off the CS hop, which can be indicated by higher layer signaling.
  • the user equipment of the coordinated cell turns off the CS hopping function of the PUCCH format 1/la/lb sent by the user equipment.
  • the specific implementation method can be determined according to the actual situation.
  • the step 601 may include: receiving, by the user equipment, a cell identifier of the coordinated node sent by the serving node; performing, according to the received cell identifier of the coordinated node, a cycle related to the coordinated node cell identifier on each symbol. Shifting of the shift.
  • the UE1 and the UE2 are still used as an example, and the serving node macro eNB where the CoMP UE1 is located may notify the CoMP UE1 in a dynamic or semi-static manner, and the CoMP UE1 may perform user-specific CS hopping, ie UE-specific CS hopping.
  • the cell-specific CS hopping of users in each cell is achieved by:
  • the variation of the CS of CoMP UE1 on each SC-FDMA in one slot is equal to the variation of the CS of UE2 on each SC-FDMA in one slot, ie a 2l + , and so on.
  • the orthogonality between the CoMP UE and the UE served by the cooperative node may be implemented by using a Frequency Division Multiplexing (FDM) mode.
  • FDM Frequency Division Multiplexing
  • FIG. 7 is still another flowchart of the uplink signal transmission method according to the embodiment of the present invention. As shown in FIG. 7, the uplink signal transmission method includes:
  • Step 701 The user equipment performs uplink signal transmission according to the resource sequence number of the resource block used by the serving node to indicate the resource block used by the user equipment for uplink signal transmission, where the resource block indicated by the resource sequence number is different from the coordinated node to other users.
  • the resource block of the device is not limited to the resource sequence number of the resource block used by the serving node to indicate the resource block used by the user equipment for uplink signal transmission, where the resource block indicated by the resource sequence number is different from the coordinated node to other users. The resource block of the device.
  • the scenario shown in FIG. 2 is still taken as an example, and the backhaul signaling (such as through a fiber connection or an X2 interface) is exchanged between the primary cell macro eNB constituting the CoMP cell and the cooperative node RRH1, and the CoMP UE1 can be given. And the neighboring cell user equipment allocates different PUCCH resource blocks, thereby implementing orthogonality of the FDM mode.
  • the uplink transmission method may further include: Step 702: The user equipment receives a resource sequence number that is sent by the service node and is used to indicate a resource block used by the user equipment for uplink signal transmission.
  • Embodiments of the present invention provide an uplink signal transmission method in a coordinated multipoint system, where a coordinated multipoint system includes a service node and a collaboration node having different cell identifiers, and a user equipment served by the service node and the collaboration node.
  • the uplink signal transmission method will be described below from the base station side.
  • FIG. 8 is still another flowchart of an uplink signal transmission method according to an embodiment of the present invention. As shown in FIG. 8, on the base station side, the uplink signal transmission method includes:
  • Step 801 The serving node receives an uplink signal transmitted by the user equipment, where the uplink signal transmitted by the user equipment is orthogonal to the uplink signal transmitted by other user equipments served by the cooperation node.
  • the orthogonality between the CoMP UE and the UE served by the cooperative node may be implemented in a CDM manner.
  • the CoMP UE and the UE served by the cooperative node are tuned To the same time-frequency resources.
  • the uplink signal transmitted by the user equipment is sent according to the cyclic shift after processing and an orthogonal sequence different from other user equipments; wherein the hop value of the cyclic shift after processing on each symbol, The difference between the hopping values of the cyclic shifts of other user equipments served by the cooperative node is unchanged.
  • the uplink signaling method may further include: turning off the CS hopping of each user equipment. That is, the serving node may send an instruction to stop the cyclically shifted hop to the cooperating node and the user equipment to turn off the cyclic shift of the user equipment and other user equipments served by the cooperative node occupying the same time-frequency resource as the user equipment.
  • the uplink signal transmission method may further include: the serving node sending the cell identifier of the cooperation node to the user equipment, so that the user equipment performs a cyclic shift hop according to the cell identifier of the cooperation node.
  • the cyclic shift of the user equipment is processed, so that the hopping value of the cyclic shift of the user equipment on each symbol, and other user equipments served by the cooperative node
  • the difference between the hopping values of the cyclic shifts is unchanged; at the same time, the two user equipments adopt different orthogonal codes, thereby ensuring the orthogonality of the uplink transmission signals and further reducing the interference of the user equipment of the neighboring cells.
  • the orthogonality between the CoMP UE and the UE of the cooperative node service may be implemented in an FDM manner.
  • FIG. 9 is still another flowchart of the uplink signal transmission method according to the embodiment of the present invention. As shown in FIG. 9, the uplink signal transmission method includes:
  • step 901 the serving node sends a resource sequence number of the resource block used for the uplink signal transmission by the user equipment to the user equipment, so that the user equipment performs uplink signal transmission on the resource block indicated by the resource sequence number;
  • the resource block indicated by the resource sequence number is different from the resource block allocated by the cooperation node to other user equipments.
  • FIG. 10 is a schematic diagram of orthogonalizing physical resources by using the FDM method according to an embodiment of the present invention. As shown in FIG. 10, the CoMP user equipment and the neighbor cell user equipment may be allocated different PUCCH resource blocks.
  • the uplink signal transmission method may further include: the serving node sends the resource sequence number of the resource block used for instructing the user equipment to perform uplink signal transmission to the cooperation node, so that the collaboration node is allocated.
  • the resource avoids allocating the resource block indicated by the resource sequence number to the user serving its own cell.
  • the CoMP UE1 PUCCH format 1/la/lb transmission resource is used to notify the user through high layer signaling, and the service node macro eNB where the CoMP UE1 is located will be CoMP.
  • the i eeH used by the UE1 tells the CoMP UE's cooperating node RRH1 through the backhaul mode (such as the fiber connection or the X2 interface), and the RRH1 separates from the CoMP UE1 from the RB resource block when scheduling the PUCCH resource of the UE (for example, UE2) of its own cell. .
  • the PUCCH format 1/la/lb transmission method may further include: the serving node includes a resource sequence number indicating a resource block used by the user equipment to perform the uplink control channel transmission.
  • the resource set is sent to the cooperation node, so that the cooperation node avoids allocating the resource block indicated by the resource sequence number to the user serving its own cell when allocating resources.
  • a set of resources ⁇ CCH4 C - ⁇ ⁇ , ⁇ ⁇ is given to CoMP UE1 in a semi-static manner, and the set of resource information is communicated to the cooperative node of CoMP UE1 through a backhauK such as a fiber connection or an X2 interface.
  • a backhauK such as a fiber connection or an X2 interface.
  • FIG. 11 is a schematic structural diagram of a user equipment according to an embodiment of the present invention.
  • the user equipment includes: an uplink signal transmission unit 1101.
  • the uplink signal transmission unit 1101 transmits an uplink signal to the serving node and the cooperation node, where the uplink signal is orthogonal to the uplink signal transmitted by other user equipments served by the cooperation node.
  • the orthogonality between the CoMP UE and the UE served by the cooperative node may be implemented in a CDM manner.
  • the CoMP UE and the UE served by the cooperating node are scheduled to use the same time-frequency resource.
  • FIG. 12 is still another schematic diagram of the configuration of the user equipment according to the embodiment of the present invention.
  • the user equipment includes: a cyclic shift processing unit 1201 and an uplink signal transmission unit 1202.
  • the cyclic shift processing unit 1201 processes the cyclic shift of the user equipment, so that the hopping value of the cyclic shift of the user equipment on each symbol, and the cyclic shift of other user equipments served by the cooperative node The difference between the hopping values is unchanged; the uplink signal transmission unit 1202 transmits an uplink signal to the serving node and the coordination point according to the processed cyclic shift and the orthogonal sequence different from other user equipments.
  • the cyclic shift processing unit 1201 may specifically include: a shutdown instruction receiving unit that receives an instruction sent by the service node to stop a cyclic shift of the user equipment; and a cyclic shift off unit, according to the instruction The jump of the cyclic shift of the user equipment.
  • the cyclic shift off unit may turn off its CS jump function after receiving the indication of the closed CS transition sent by the serving node.
  • Other user equipment such as UE2 can also turn off its CS transition function after receiving an indication that the cooperative node (such as RRH1) sends off the CS transition.
  • the cyclic shift processing unit 1201 may specifically include: a cell identity receiving unit that receives a cell identity of the cooperation node sent by the service node; a cyclic shift hopping unit, according to the received cell of the cooperation node Identification, a jump that is cyclically shifted on each symbol.
  • the cyclic shift of the user equipment is processed, so that the hopping value of the cyclic shift of the user equipment on each symbol, and other user equipments served by the cooperative node
  • the difference between the hopping values of the cyclic shifts is unchanged; at the same time, the two user equipments adopt different orthogonal codes, thereby ensuring the orthogonality of the uplink transmission signals and further reducing the interference of the user equipment of the neighboring cells.
  • the orthogonality between the CoMP UE and the UE served by the cooperative node may be implemented in an FDM manner.
  • the uplink signal transmission unit 1101 may specifically include: transmitting, according to the resource sequence number of the resource block used by the serving node to indicate the resource block used by the user equipment for uplink signal transmission, where the resource block indicated by the resource sequence number is different from the coordinated node.
  • the user equipment may further include: a resource sequence number receiving unit, where the resource sequence number sent by the service node for indicating the resource block used by the user equipment for uplink signal transmission is received.
  • the embodiment of the present invention further provides a base station, which is applied to a coordinated multipoint system, where the coordinated multipoint system further includes a cooperation node having a cell identity different from the service node, and a user equipment served by the base station and the collaboration node. .
  • the coordinated multipoint system further includes a cooperation node having a cell identity different from the service node, and a user equipment served by the base station and the collaboration node.
  • FIG. 13 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • the base station includes: an uplink signal receiving unit 1301.
  • the uplink signal receiving unit 1301 receives the uplink signal transmitted by the user equipment, where the uplink signal transmitted by the user equipment is orthogonal to the uplink signal transmitted by other user equipments served by the cooperative node.
  • the orthogonality between the CoMP UE and the UE served by the cooperative node may be implemented in a CDM manner.
  • the CoMP UE and the UE served by the cooperating node are scheduled to use the same time-frequency resource.
  • the uplink signal receiving unit 1301 receives the uplink signal sent by the user equipment according to the processed cyclic shift; wherein, on each symbol, the processed cyclic shift hop value and other user equipments served by the cooperative node The difference between the transition values of the cyclic shifts is constant.
  • the base station may further include: a shutdown instruction sending unit that sends an instruction to stop the cyclic shifting hopping to the cooperation node and the user equipment to turn off the cyclic shift of the user equipment and other user equipments Jump.
  • a shutdown instruction sending unit that sends an instruction to stop the cyclic shifting hopping to the cooperation node and the user equipment to turn off the cyclic shift of the user equipment and other user equipments Jump.
  • the base station may further include: a cell identifier sending unit, It sends the cell identifier of the cooperation node to the user equipment, so that the user equipment performs a cyclic shift hop according to the cell identifier of the cooperation node.
  • the cyclic shift of the user equipment is processed, so that the hopping value of the cyclic shift of the user equipment on each symbol, and other user equipments served by the cooperative node
  • the difference between the hopping values of the cyclic shifts is unchanged; the orthogonality of the uplink transmission signals can be ensured, thereby further reducing the interference of the user equipment of the neighboring cells.
  • the orthogonality between the CoMP UE and the UE of the cooperative node service may be implemented in an FDM manner.
  • FIG. 14 is a schematic diagram of still another structure of a base station according to an embodiment of the present invention.
  • the base station 1400 includes: an uplink signal receiving unit 1401 and a resource sequence number transmitting unit 1402.
  • the resource sequence number sending unit 1402 sends a resource sequence number for indicating a resource block used by the user equipment to perform uplink control channel transmission to the user equipment, so that the user equipment performs uplink control channel transmission on the resource block indicated by the resource sequence number.
  • the uplink signal receiving unit 1401 receives the uplink signal transmitted by the user equipment, wherein the uplink signal is a transmission performed on the resource block indicated by the resource sequence number.
  • the resource block indicated by the resource sequence number is different from the resource block allocated by the cooperation node to other user equipments.
  • the base station may further include: a first sending unit, configured to send, to the cooperative node, a resource sequence number used by the user equipment to perform resource block for performing uplink signal transmission, so that the cooperative node avoids allocating the resource when allocating resources The resource block indicated by the resource number.
  • a first sending unit configured to send, to the cooperative node, a resource sequence number used by the user equipment to perform resource block for performing uplink signal transmission, so that the cooperative node avoids allocating the resource when allocating resources The resource block indicated by the resource number.
  • the base station may further include: a second sending unit, configured to send, to the cooperation node, a resource set that includes a resource sequence number used by the user equipment to perform uplink signal transmission, so that the coordinated node is allocated Avoid resource allocations indicated by the resource sequence number when the resource is used.
  • a second sending unit configured to send, to the cooperation node, a resource set that includes a resource sequence number used by the user equipment to perform uplink signal transmission, so that the coordinated node is allocated Avoid resource allocations indicated by the resource sequence number when the resource is used.
  • the CoMP user equipment and the neighboring cell user equipment are allocated different resource blocks; the orthogonality of the uplink control channel transmission can be ensured, thereby further reducing the neighboring cell user equipment. interference.
  • the embodiment of the present invention also provides a computer readable program, wherein when the program is executed in a base station, the program causes a computer to perform an uplink signal transmission method as described above in the base station.
  • An embodiment of the present invention further provides a storage medium storing a computer readable program, wherein The computer readable program causes a computer to perform an uplink signal transmission method as described above in a base station.
  • the embodiment of the present invention further provides a computer readable program, wherein when the program is executed in a user equipment, the program causes a computer to perform an uplink signal transmission method as described above in the user equipment.
  • Embodiments of the present invention also provide a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform an uplink signal transmission method as described above in a user equipment.
  • the above apparatus and method of the present invention may be implemented by hardware or by hardware in combination with software.
  • the present invention relates to a computer readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to cause the logic component to implement the various methods described above Or steps.
  • the present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, or the like.
  • One or more of the functional blocks described in the figures and/or one or more combinations of functional blocks may be implemented as a general purpose processor, digital signal processor (DSP) for performing the functions described herein.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • One or more of the functional blocks described with respect to the figures and/or one or more combinations of functional blocks may also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, multiple microprocessors One or more microprocessors in conjunction with DSP communication or any other such configuration.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Les modes de réalisation de la présente invention portent sur un procédé d'émission de signal de liaison montante, un équipement utilisateur (UE) et une station de base dans un système d'émission multipoint coordonnée (CoMP). Le procédé d'émission de signal de liaison montante comprend les opérations suivantes : un UE émet des signaux de liaison montante à un point de service et un point de coopération, les signaux de liaison montante émis par l'UE restant orthogonaux aux signaux de liaison montante émis par les autres UE desservis par le point de coopération. Les modes de réalisation de la présente invention peuvent davantage réduire des brouillages entre les UE de cellules voisines, ce qui assure les performances de réception multipoint (CoMP).
PCT/CN2011/080491 2011-09-30 2011-09-30 Procédé d'émission de signal de liaison montante, équipement utilisateur et station de base dans un système d'émission multipoint coordonnée WO2013044517A1 (fr)

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CN201180072056.2A CN103636245A (zh) 2011-09-30 2011-09-30 协作多点系统中的上行信号传输方法、用户设备以及基站
PCT/CN2011/080491 WO2013044517A1 (fr) 2011-09-30 2011-09-30 Procédé d'émission de signal de liaison montante, équipement utilisateur et station de base dans un système d'émission multipoint coordonnée

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PCT/CN2011/080491 WO2013044517A1 (fr) 2011-09-30 2011-09-30 Procédé d'émission de signal de liaison montante, équipement utilisateur et station de base dans un système d'émission multipoint coordonnée

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CN118119020A (zh) * 2022-11-30 2024-05-31 华为技术有限公司 一种通信方法及装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101867938A (zh) * 2009-04-20 2010-10-20 大唐移动通信设备有限公司 一种用于多点协同传输的上行参考信号的配置方法和装置
EP2264960A1 (fr) * 2009-06-19 2010-12-22 Alcatel Lucent Procédé et arrangement de traitement pour le traitement conjoint de données en voie montante
CN102026298A (zh) * 2009-09-22 2011-04-20 中兴通讯股份有限公司 消除多点协作中不同小区用户间srs干扰的方法与系统
CN102158449A (zh) * 2010-02-12 2011-08-17 华为技术有限公司 一种生成参考信号的方法、基站及终端

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101867938A (zh) * 2009-04-20 2010-10-20 大唐移动通信设备有限公司 一种用于多点协同传输的上行参考信号的配置方法和装置
EP2264960A1 (fr) * 2009-06-19 2010-12-22 Alcatel Lucent Procédé et arrangement de traitement pour le traitement conjoint de données en voie montante
CN102026298A (zh) * 2009-09-22 2011-04-20 中兴通讯股份有限公司 消除多点协作中不同小区用户间srs干扰的方法与系统
CN102158449A (zh) * 2010-02-12 2011-08-17 华为技术有限公司 一种生成参考信号的方法、基站及终端

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