WO2014101205A1 - 协调中继回传资源干扰的方法及基站 - Google Patents

协调中继回传资源干扰的方法及基站 Download PDF

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Publication number
WO2014101205A1
WO2014101205A1 PCT/CN2012/088083 CN2012088083W WO2014101205A1 WO 2014101205 A1 WO2014101205 A1 WO 2014101205A1 CN 2012088083 W CN2012088083 W CN 2012088083W WO 2014101205 A1 WO2014101205 A1 WO 2014101205A1
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WIPO (PCT)
Prior art keywords
base station
resource
physical downlink
downlink channel
information
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PCT/CN2012/088083
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English (en)
French (fr)
Inventor
汤斌淞
Original Assignee
华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201280023281.1A priority Critical patent/CN104041157A/zh
Priority to PCT/CN2012/088083 priority patent/WO2014101205A1/zh
Publication of WO2014101205A1 publication Critical patent/WO2014101205A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
    • H04W16/10—Dynamic resource partitioning

Definitions

  • the present invention relates to the field of communications, and more particularly to a method and a base station for coordinating relay backhaul resource interference. Background technique
  • Heterogeneous Network a scenario in which a macro cell (Macro cell) and a pico cell share a spectrum is taken as an example. Since the Pico cell and the Macro cell have different transmission powers, Pico The UE of the cell receives severe interference from the Macro cell when receiving the Physical Downlink Control Channel (PDCCH), resulting in poor PDCCH performance. When the Pico cell introduces the Cell Range Extension technology, the performance of the PDCCH is further deteriorated. Therefore, the Third Generation Partnership Project (3GPP, Third Generation Partnership Project)? The Enhanced Inter-Cell Interference Coordination (elCIC) mechanism is designed to solve the problem of different types of cell mix in HetNet networks by using Almost Blank Subframe (ABS).
  • elCIC Enhanced Inter-Cell Interference Coordination
  • An approximate null subframe refers to a transmission in which only common pilots are transmitted, or only a common pilot transmission and a control channel transmitted in a low power or low activity manner, and the above two schemes may be referred to as ABS zero power respectively.
  • the scheme and the ABS low power scheme, where zero power and low power are for the PDCCH.
  • the Aggressive cell configures its own downlink subframe as an ABS subframe, so as to reduce interference to the downlink transmission of the victim cell, especially the downlink control channel.
  • the Relay-Physical Downlink Control Channel used by the Relay Relay Backhaul Relay-Physical Downlink Control Channel, R-PDCCH
  • the interference coordination mechanism of resources is not protected by the base station to which it belongs. Summary of the invention
  • the embodiments of the present invention provide a method and a base station for coordinating relay backhaul resource interference, which can enhance the protection mechanism of the relay backhaul resource.
  • a method for coordinating interference of a relay backhaul resource comprising: A base station receives information about a first physical downlink channel resource sent by a second base station, where the first base station is a base station of a cell to which the relay node belongs, and the second base station is a micro base station of the first base station or a neighbor of the first base station a base station, where the first physical downlink channel resource is a physical downlink channel resource that can interfere with the relay backhaul resource configured on the first physical downlink channel resource of the first base station; if the first base station is according to the first The information of the physical downlink channel resource determines that the first base station configures all or part of the frequency domain resource block of the first backhaul resource on the first physical downlink channel resource, and the first base station is in the Configuring a second backhaul resource for the relay node on the second physical downlink channel resource, where the second physical downlink channel resource is a physical downlink channel except the first physical downlink channel resource of the
  • the information about the first physical downlink channel resource includes: a cell identifier of the second base station, and a frequency domain resource block of the first physical downlink channel resource. Information.
  • the specific implementation is: if the second base station is a neighboring base station of the first base station, the first The information of the physical downlink channel resource includes: information of a physical downlink channel frequency domain resource block whose signal power obtained by the second base station is greater than a predetermined threshold; and/or a relay node of the second base station or the second base station is in the The information of the physical downlink channel frequency domain resource block used on the approximate null subframe ABS of a base station.
  • the specific implementation is: if the second base station is a micro base station of the first base station, the first physical The information about the downlink channel resource includes: information about the relay backhaul resource configured by the second base station on the ABS of the first base station.
  • the first possible implementation of the first aspect or the first possible implementation of the first aspect to the third possible implementation of the first aspect is implemented as : the information of the first physical downlink channel resource is sent by using a relatively narrowband transmit power RNTP message
  • a base station configured to receive information about a first physical downlink channel resource sent by the second base station, where the base station is a relay a base station of the cell to which the node belongs, the second base station is a micro base station of the base station or a neighboring base station of the base station, and the signal on the first physical downlink channel resource is configured to be configured in the base station a relay downlink resource on a physical downlink channel resource to generate an interference physical downlink channel resource; a control unit, configured to determine, according to the information of the first physical downlink channel resource, that the base station is the first The physical downlink channel resource is configured with all or part of the frequency domain resource block of the first backhaul resource, and the backhaul resource configuration information is generated, where the backhaul resource configuration information indicates that the relay node is the second physical downlink channel resource.
  • the second physical downlink channel resource is a physical downlink channel resource except the first physical downlink channel resource of the physical downlink channel resource of the base station, where the second backhaul resource is used in the time domain
  • the information about the first physical downlink channel resource includes: a cell identifier of the second base station, and a frequency domain resource block of the first physical downlink channel resource. Information.
  • the first possible implementation manner of the second aspect or the second aspect is specifically implemented as follows: if the second base station is a neighboring base station of the base station, the first physical downlink
  • the information of the channel resource includes: information of a physical downlink channel frequency domain resource block whose signal power acquired by the second base station is greater than a predetermined threshold; and/or an approximation of the relay node of the second base station or the second base station at the base station.
  • the second possible aspect is implemented as follows: if the second base station is a micro base station of the base station, the first physical downlink channel
  • the information of the resource includes: information that the second base station configures a relay backhaul resource configured on the ABS of the base station.
  • the possible implementation manner of the third possible implementation manner of the second aspect in combination with the second aspect or the first possible implementation manner of the second aspect, the possible implementation manner of the third possible implementation manner of the second aspect, :
  • the information of the first physical downlink channel resource is sent by using a relatively narrowband transmit power RNTP message.
  • Figure la is a schematic diagram of an application scenario of an embodiment of the present invention.
  • FIG. 1b is a schematic diagram of another application scenario of an embodiment of the present invention.
  • FIG. 3 is an interaction flowchart of coordinating relay backhaul resource interference according to an embodiment of the present invention.
  • FIG. 4 is another interaction flowchart of coordinating relay backhaul resource interference according to an embodiment of the present invention.
  • FIG. 5 is a schematic block diagram of a base station according to an embodiment of the present invention.
  • FIG. 6 is another schematic block diagram of a base station according to an embodiment of the present invention.
  • FIG. 7 is another schematic block diagram of a base station according to an embodiment of the present invention. detailed description
  • GSM Global System of Mobile Communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • the base station may be a base station (BTS, Base Transceiver Station) in GSM or CDMA, or a base station (NodeB) in WCDMA, or an evolved base station (eNB or e-NodeB, evolutional Node B) in LTE.
  • BTS Base Transceiver Station
  • NodeB base station
  • eNB evolved base station
  • e-NodeB evolutional Node B
  • FIG. 1a is a schematic diagram of a specific application scenario of an embodiment of the present invention.
  • the cell 108 of the base station 101 is adjacent to the cell 109 of the base station 102, and the relay link (Relay) 103 and the backhaul link of the base station 101 of the cell to which it belongs are radio links.
  • 105. Transmit on an Almost Blank Subframe (ABS) of the base station 101.
  • the relay backhaul resource may be received by the base station 102 of the neighboring cell 109.
  • the interference of the number 107 or the interference of the wireless signal 106 of the second relay 104 of the neighboring cell 109 In order to avoid interference, the base station 101 and the base station 102 are required to perform resource coordination.
  • FIG. 1b is a schematic diagram of another specific application scenario of an embodiment of the present invention.
  • the macro base station of the base station 101 station 102 The backhaul link of the first relay 103 and the base station 101 of the cell to which it belongs is a radio link 105, and the second relay 104 uses a radio link 106 for the backhaul link of the base station 102 of the cell to which it belongs.
  • the relay backhaul resources allocated by the base station 101 to the first relay 103 may collide with the relay backhaul resources allocated by the base station 102 to the second relay 104.
  • the base station 101 is required to coordinate resources with the base station 102.
  • the method, the base station, and the system in the embodiments of the present invention are not limited to the application scenarios shown in FIG. 1a and FIG. 1b. .
  • FIG. 2 is a flow chart of a method for coordinating relay backhaul resource interference according to an embodiment of the present invention, which is performed by a first base station.
  • the method includes:
  • the first base station receives information about the first physical downlink channel resource sent by the second base station.
  • the first base station is a base station of a cell to which the relay node belongs, and the second base station is a micro base station of the first base station or a neighboring base station of the first base station, and the signal on the first physical downlink channel resource is capable of
  • the first base station configures a relay downlink resource on the first physical downlink channel resource to generate an interference physical downlink channel resource.
  • the first physical downlink channel resource can be configured to interfere with the relay backhaul resource configured on the first physical downlink channel resource, and the first base station configures the relay backhaul resource in the first physical downlink.
  • the signal on the first physical downlink channel resource may interfere with the relay backhaul resource of the first base station.
  • the first base station determines, according to the information about the first physical downlink channel resource, the first base station configures, in the first physical downlink channel resource, all or part of the frequency domain of the first backhaul resource. And the first base station configures the second backhaul resource for the relay node in the second physical downlink channel resource.
  • the second physical downlink channel resource is a physical downlink channel resource except the first physical downlink channel resource in the physical downlink channel resource of the first base station, and the second backhaul resource uses the approximation of the first base station in the time domain. Empty sub-frame ABS.
  • a returning resource is configured for the relay node on the second physical downlink channel resource.
  • the backhaul resource may be configured for the relay node on the second physical downlink channel resource.
  • the second physical downlink channel resource is a physical downlink channel resource except the first physical downlink channel resource in the physical downlink channel resource of the first base station, in other words, the second physical downlink channel resource is in the frequency domain and the first physical downlink Channel resources are staggered.
  • the physical downlink channel resource may be a frequency domain resource block. It can be understood that the second physical downlink channel resource is offset from the first physical downlink channel resource in the frequency domain, that is, the frequency domain resource occupied by the second backhaul resource in the process of configuring the second backhaul resource by the first base station. The block is different from the frequency domain resource block occupied by the first backhaul resource.
  • the relay backhaul resource is re-allocated for the relay node under the control of the base station to avoid signal interference from the base station or the relay node of other cells.
  • the protection mechanism of the relay backhaul resource of the relay node is enhanced, and the robustness of the control channel of the relay backhaul is improved.
  • the first base station is a relay backhaul resource configured by the relay node, and may be the frequency of the third time slot of the Orthogonal Frequency Division Multiplexing (OFDM) resource of the physical downlink channel.
  • OFDM Orthogonal Frequency Division Multiplexing
  • the information about the first physical downlink channel resource includes: a cell identifier of the second base station and information of a frequency domain resource block of the first physical downlink channel resource.
  • the cell identity of the second base station can be used to determine whether the second base station is a micro base station of the first base station or a neighboring base station of the first base station.
  • the information about the frequency domain resource block of the first physical downlink channel resource may include the location information of the frequency domain resource block (specifically, the number of the frequency domain resource block), where the location information may be used to determine that the first base station configuration is relayed back. Passing resources requires staggered frequency domain resource blocks.
  • the information of the first physical downlink channel resource sent by the second base station may be information that only includes the frequency domain resource block that may be selected as the relay backhaul resource.
  • the first base station may determine, according to the cell identifier of the second base station, whether the second base station is a neighboring base station of the first base station, or whether the second base station is a macro base station of the first base station, to determine the received physical downlink channel. Whether the information of the resource is information of the first physical downlink channel resource.
  • the first physical downlink channel resource may be a PDSCH resource, or may be a resource of a PDCCH multiplexed with a PDSCH resource, for example, an R-PDCCH resource.
  • First Information about the first physical downlink channel resource sent by the second base station which may include information for data transmission
  • Information of the PDSCH resource, and/or information of the PDSCH resource used for controlling the channel extension for example, information for relaying the backhauled R-PDCCH resource.
  • the information of the PDSCH resource may include location information of the PDSCH resource, or may further include signal power information of the PDSCH resource; the information of the R-PDCCH resource may include location information of the R-PDCCH resource.
  • the information about the first physical downlink channel resource includes: Information of a Radio Bear (RB) resource and/or information of a second RB resource.
  • RB Radio Bear
  • the first RB resource is a physical downlink channel frequency domain resource block whose signal power acquired by the second base station is greater than a predetermined threshold.
  • the predetermined threshold may be a threshold specified in the communication protocol, or a threshold determined by the operator according to the communication policy or resource information available in the system, or a preset threshold when the device manufacturer leaves the factory. The present invention does not do this. limit. If the signal power of the first RB resource is greater than the predetermined threshold, the signal of the first RB resource may be considered to interfere with the relay backhaul resource configured on the first RB resource, if the first base station relays the relay node If the backhaul resource is configured on the first RB resource, the relay backhaul resource of the relay node needs to be adjusted.
  • the second RB resource is a physical downlink channel frequency domain resource block used by the relay node of the second base station or the second base station on the approximate null subframe ABS of the first base station.
  • the first base station may send the ABS subframe of the first base station to the second base station, and the second base station sends the second base station or the relay node of the second base station to the first base station according to the information of the ABS subframe sent by the first base station.
  • Both the first RB resource and the second RB resource belong to the first physical downlink channel resource. If all or part of the frequency domain resource block of the relay backhaul resource of the relay node of the first base station configures the first RB resource or the frequency domain resource block in the second RB resource, the first base station needs to configure the relay node. Two return resources.
  • the second backhaul resource uses the ABS subframe of the first base station in the time domain, and uses the first RB resource and the frequency domain resource block except the second RB resource in the physical downlink channel resource of the first base station in the frequency domain.
  • the information of the first physical downlink channel resource may include: The information about the third RB resource sent by the second base station, where the third RB resource may include a relay backhaul resource configured by the second base station on the ABS of the first base station. Due to the micro base station and the macro base station The same ABS is used. Therefore, the micro base station may not need to consider the interference of the physical downlink high-power signal from the macro base station, and may only need to consider the interference of the same-frequency relay backhaul resource.
  • the macro base station needs to avoid the relay backhaul resource of the micro base station. Therefore, when configuring the relay backhaul resource for the relay node, the first base station uses the frequency domain resource block except the third RB resource of the physical downlink channel resource of the first base station.
  • the information about the first physical downlink channel resource may be sent by the second base station by using a relatively narrowband transmit power RNTP message.
  • FIG. 3 is an interaction flowchart of coordinating relay backhaul resource interference according to an embodiment of the present invention.
  • the second base station sends a first relative narrowband transmit power (RNTP) message to the first base station.
  • the first RNTP message indicates information of a first radio bearer (Radio Bear, RB) resource in which the signal power of the second base station exceeds a predetermined threshold, where the first RNTP message carries the cell identifier of the second base station and the first Location information of the RB resource.
  • Radio Bear Radio Bear
  • the first base station sends information about an Almost Blank Subframe (ABS) of the first base station to the second base station and the first relay that it is in charge.
  • ABS Almost Blank Subframe
  • the second base station sends a second RNTP message to the first base station.
  • the second RNTP message indicates information about the second RB resource of the frequency domain resource block used by the relay node of the second base station or the second base station on the ABS. Similarly, the second RNTP message may carry the cell identifier of the second base station and the location information of the second RB resource.
  • the first base station determines that all or part of the frequency domain resource block of the first backhaul resource of the first relay is configured in the first RNTP message or the frequency domain resource block indicated by the second RNTP message (or the first base station determines the first All or part of the frequency domain resource block of the first backhaul resource of the relay is configured on the first RB resource or the second RB resource;), sending a second Relay backhaul resource configuration to the first relay, indicating that the first relay will
  • the backhaul resource is configured from the first backhaul resource to the second backhaul resource.
  • the second backhaul resource does not use the first RB resource or the frequency domain resource block of the second RB resource in the frequency domain.
  • the second backhaul resource can use the physical downlink resource of the first base station in the frequency domain.
  • a frequency domain resource block except for a frequency domain resource block of an RB resource and a second RB resource.
  • the first base station receives the high power RB resource of the second base station (that is, the RB resource that may interfere with the relay node of the neighboring cell of the second base station) or the relay of the second base station and the second base station.
  • RB resources used by the node on the ABS subframe of the first base station, and re-allocating the relay backhaul resources for the first relay according to the two types of RB resources, to avoid relaying the base station signal of the neighboring cell to the first relay
  • the interference of the returned resources enhances the protection of the relay backhaul resources of the relay node.
  • the protection mechanism improves the robustness of the control channel of the relay backhaul.
  • the second base station may only send the first RNTP message or the second RNTP message to the first base station, but this does not affect the first base station according to the received information of the first physical downlink channel resource to the first base station.
  • the relay node relays resources back to reconfigure operations.
  • the reconfiguration of the backhaul resource may not be performed.
  • FIG. 4 is still another flow chart of coordinating relay backhaul resource interference according to an embodiment of the present invention.
  • the first base station is a macro base station of the second base station.
  • the first base station and the second base station are synchronized, but the frame numbers of the subframes in which the ABSs are located may be the same or different.
  • the first base station sends first backhaul resource configuration information to the first relay, and the second base station sends second backhaul resource configuration information to the second base station.
  • the second base station sends the second backhaul resource information configured to the second relay to the first base station.
  • the first base station finds that all or part of the frequency domain resource block of the backhaul resource configured by the first backhaul resource configuration information conflicts with the backhaul resource indicated by the second backhaul resource information, (or All or part of the frequency domain resource block of the backhaul resource configured in the first backhaul resource configuration information is configured in the backhaul resource indicated by the second backhaul resource information, and the first base station sends the third backhaul resource to the first relay.
  • the configuration information is sent to the first relay to configure the backhaul resource to the third backhaul resource indicated by the third backhaul resource configuration information, so as to avoid the signal interference of the second relay, and the first base station may send the second base station to the second base station. Send the third backhaul resource information.
  • the possibility that the backhaul resource configured by the first backhaul resource configuration information conflicts with the backhaul resource indicated by the second backhaul resource information refers to all or part of the frequency domain resource block of the first backhaul resource. Falling into the backhaul resource indicated by the second backhaul resource information.
  • the third backhaul resource does not use the backhaul resource indicated by the second backhaul resource information in the frequency domain.
  • the third backhaul resource may use the second backhaul resource information indication in the physical downlink channel resource in the frequency domain.
  • the first base station re-configures the third backhaul resource by receiving the second backhaul resource information of the second relay of the second base station, and configuring the first relay that conflicts with the second backhaul resource for the backhaul resource configuration. Information, thereby avoiding the signal interference of the second Relay.
  • FIG. 5 is a schematic block diagram of a base station 500 in accordance with an embodiment of the present invention.
  • the base station 500 is a base station to which the relay node belongs, and may include a receiving unit 501, a control unit 502, and a transmitting unit 503.
  • the receiving unit 501 can receive information about the first physical downlink channel resource sent by the second base station,
  • the base station 500 is a base station of a cell to which the relay node belongs, the second base station is a micro base station of the base station 500 or a neighboring base station of the base station 500, and the first physical downlink channel resource is configured to be able to configure the base station 500 in the first physical downlink channel resource.
  • the relay backhaul resources on the uplink generate interference physical downlink channel resources.
  • the control unit 502 is configured to determine, according to the information of the first physical downlink channel resource, that the base station 500 configures all or part of the frequency domain resource block of the first backhaul resource for the relay node in the first physical downlink channel resource. And generating the backhaul resource configuration information, where the backhaul resource configuration information indicates that the second backhaul resource is configured for the relay node in the second physical downlink channel resource, where the second physical downlink channel resource is the base station 500
  • the physical downlink channel resource except the first physical downlink channel resource in the physical downlink channel resource, and the second backhaul resource uses the approximate null subframe ABS of the base station 500 in the time domain.
  • the sending unit 503 is configured to send the backhaul resource configuration information to the relay node.
  • the base station 500 re-allocates the backhaul resource for the relay node under the control of the base station 500 by receiving the information of the first physical downlink channel resource from the other cell to avoid the signal from the base station or the relay node of the other cell.
  • the interference enhances the protection mechanism of the relay node's backhaul resources and improves the robustness of the relay node's control channel transmission.
  • the above sending unit may be a transmitter or a transceiver
  • the above receiving unit may be a receiver or a transceiver
  • the sending unit and the receiving unit may be integrated to form a transceiver unit, which is implemented as a transceiver corresponding to hardware.
  • the above control unit 502 can be embedded in the hardware of the base station in hardware or stored in the memory of the base station in software, so that the processor can invoke the operations corresponding to the above modules.
  • the processor can be a central processing unit (CPU), a microprocessor, a microcontroller, or the like.
  • the information about the first physical downlink channel resource includes: a cell identifier of the second base station and information of a frequency domain resource block of the first physical downlink channel resource.
  • the base station 500 may determine, according to the cell identifier of the second base station, whether the second base station is a neighboring base station of the first base station, or whether the second base station is a macro base station of the first base station, to determine the received physical downlink channel resource.
  • the cell identifier of the second base station is used to determine whether the second base station is a micro base station of the base station 500 or a neighboring base station of the base station 500, the first physical downlink channel resource
  • the information of the frequency domain resource block may include the location information of the frequency domain resource block (for example, the number of the frequency domain resource block), and the location information may be used to determine the frequency domain resource block that the base station 500 needs to configure the relay backhaul resource to be staggered. .
  • the information of the first physical downlink channel resource sent by the second base station may be only a packet Contains information about frequency domain resource blocks that may be selected as relay backhaul resources.
  • the first physical downlink channel resource may be a PDSCH resource, or may be a resource of a PDCCH in which a PDSCH resource is multiplexed, for example, an R-PDCCH resource.
  • the information of the first physical downlink channel resource sent by the second base station may include information of a PDSCH resource used for data transmission, and/or information of a PDSCH resource used for controlling channel extension, for example, R for relaying backhaul.
  • - Information of the PDCCH resource may include location information of the PDSCH resource, or may further include signal power information of the PDSCH resource; and information of the R-PDCCH resource may include location information of the R-PDCCH resource.
  • the information about the first physical downlink channel resource includes: Information of a Radio Bear (RB) resource and/or information of a second RB resource.
  • RB Radio Bear
  • the first RB resource is a physical downlink channel frequency domain resource block whose signal power acquired by the second base station is greater than a predetermined threshold.
  • the predetermined threshold may be a threshold specified in the communication protocol, or a threshold determined by the operator according to the communication policy or resource information available in the system, or a preset threshold when the device manufacturer leaves the factory. The present invention does not do this. limit. If the signal power of the first RB resource is greater than the predetermined threshold, the signal of the first RB resource may be considered to interfere with the relay backhaul resource configured on the first RB resource, if the base station 500 relays the relay node back. If the transmission resource is configured on the first RB resource, the relay backhaul resource of the relay node needs to be adjusted.
  • the second RB resource is a physical downlink channel frequency domain resource block used by the relay node of the second base station or the second base station on the approximate null subframe ABS of the base station 500.
  • the base station 500 can send the ABS subframe of the base station 500 to the second base station, and the second base station sends the second base station or the relay node of the second base station to the base station 500 according to the information of the ABS subframe sent by the base station 500.
  • Both the first RB resource and the second RB resource belong to the first physical downlink channel resource. If the base station
  • the base station 500 needs to configure the second backhaul resource for the relay node.
  • the second backhaul resource uses the ABS subframe of the base station 500 in the time domain, and uses the first RB resource and the frequency domain resource block except the second RB resource in the physical downlink channel resource of the base station 500 in the frequency domain.
  • the second base station is a micro base station of the base station 500 (or The base station 500 is a macro base station of the second base station, and the information of the first physical downlink channel resource may include: information about a third RB resource sent by the second base station, where the third RB resource may include a second base station configuration
  • the relay is backhauled on the ABS of the base station 500. Since the micro base station and the macro base station use the same ABS, the micro base station does not need to consider the interference of the physical downlink high power signal from the macro base station, and only needs to consider the interference of the same frequency relay backhaul resource.
  • the base station 500 uses the frequency domain resource block except the third RB resource in the physical downlink channel resource of the base station 500.
  • the information about the first physical downlink channel resource may be sent by the second base station by using a relatively narrowband transmit power RNTP message.
  • the base station 500 can implement the method for coordinating the relay backhaul resource interference shown in any of the embodiments of FIG. 2 to FIG. 4, which is not described herein again.
  • FIG 6 is a schematic block diagram of a base station 600 in accordance with an embodiment of the present invention.
  • the base station 600 is a base station to which the relay node belongs, and may include a receiver 601, a processor 602, a transmitter 603, and a memory 604.
  • the receiver 601 can receive information about the first physical downlink channel resource sent by the second base station, where the base station 600 is a base station of the cell to which the relay node belongs, and the second base station is a micro base station of the base station 600 or a neighboring base station of the base station 600.
  • the first physical downlink channel resource is a physical downlink channel resource that can interfere with the relay backhaul resource configured by the base station 600 on the first physical downlink channel resource.
  • the processor 602 is configured to determine, according to the information about the first physical downlink channel resource, that the base station 600 allocates all or part of the frequency domain resource block of the first backhaul resource to the first physical downlink channel resource for the relay node. And generating the backhaul resource configuration information, where the backhaul resource configuration information indicates that the second backhaul resource is configured for the relay node in the second physical downlink channel resource, where the second physical downlink channel resource is the base station 600
  • the frequency domain resource block except the first physical downlink channel resource in the physical downlink channel resource, and the second backhaul resource uses the approximate null subframe ABS of the base station 600 in the time domain.
  • the transmitter 603 is configured to send the backhaul resource configuration information to the relay node.
  • the memory 604 may be configured to enable the processor 602 to generate the backhaul resource configuration information by using the first physical downlink channel resource for all or part of the frequency domain resource block of the first backhaul resource configured by the base station 600 for the relay node. instruction.
  • the transmitter 603 is configured to send the backhaul resource configuration information to the relay node.
  • the base station 600 receives the first physical downlink channel from other cells.
  • the information of the resource reallocating the backhaul resource for the relay node under the jurisdiction of the base station 600 to avoid signal interference from the base station or the relay node of the other cell, enhancing the protection mechanism of the returning resource of the relay node, and improving the relay The robustness of node control channel transmission.
  • the processor 602 controls the operation of the base station 600, which may also be referred to as a CPU (Central Processing Unit).
  • Memory 604 can include read only memory and random access memory and provides instructions and data to processor 602.
  • a portion of memory 604 may also include non-volatile random access memory (NVRAM).
  • NVRAM non-volatile random access memory
  • the components of the base station 600 are coupled together by a bus system 605.
  • the bus system 605 may include a power bus, a control bus, and a status signal bus in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 605 in the figure.
  • Processor 602 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 602 or an instruction in the form of software.
  • the processor 602 described above may be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware. Component.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA off-the-shelf programmable gate array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present invention may be implemented or carried out.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by the hardware decoding processor, or by a combination of hardware and software modules in the decoding processor.
  • the software modules can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in memory 604, and processor 602 reads the information in memory 604 and, in conjunction with its hardware, performs the steps of the above method.
  • the information about the first physical downlink channel resource includes: a cell identifier of the second base station and information of a frequency domain resource block of the first physical downlink channel resource.
  • the cell identifier of the second base station is used to determine whether the second base station is a micro base station of the base station 600 or a neighboring base station of the base station 600.
  • the information of the frequency domain resource block of the first physical downlink channel resource may include a frequency domain resource block.
  • the location information (for example, the number of the frequency domain resource block), the location information may be used to determine a frequency domain resource block that the base station 600 needs to refrain from configuring the relay backhaul resource.
  • the information about the first physical downlink channel resource sent by the second base station may be information that only includes the frequency domain resource block that may be selected as the relay backhaul resource.
  • the base station 600 may determine, according to the cell identifier of the second base station, whether the second base station is a neighboring base station of the first base station, or determine whether the second base station is a macro base station of the first base station, to determine the received physical downlink channel. Whether the information of the resource is information of the first physical downlink channel resource.
  • the base station 600 may determine, according to the cell identifier of the second base station, whether the second base station is a neighboring base station of the first base station, or determine whether the second base station is a macro base station of the first base station, to determine the received physical downlink channel. Whether the information of the resource is information of the first physical downlink channel resource.
  • the information about the first physical downlink channel resource includes: Information of a Radio Bear (RB) resource and/or information of a second RB resource.
  • the first RB resource is a physical downlink channel frequency domain resource block whose signal power acquired by the second base station is greater than a predetermined threshold.
  • the second RB resource is a physical downlink channel frequency domain resource block used by the relay node of the second base station or the second base station on the approximate null subframe ABS of the base station 600.
  • the information of the first physical downlink channel resource may include: the second base station The information of the third RB resource that is sent, where the third RB resource may include a relay backhaul resource that is configured by the second base station on the ABS of the base station 600.
  • the information about the first physical downlink channel resource may be sent by the second base station by using a relatively narrowband transmit power RNTP message.
  • the base station 600 can implement the method for coordinating the relay backhaul resource interference shown in any one of the embodiments of FIG. 2 to FIG. 4, and the present invention is not described herein again.
  • the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be taken to the embodiments of the present invention.
  • the implementation process constitutes any limitation.
  • FIG. 7 is a schematic block diagram of a base station 700 in accordance with an embodiment of the present invention.
  • the base station 700 is a base station to which the relay node belongs.
  • the base station 700 can include a receiver 701, a transmitter 703, and a memory 704, and a processor 702 coupled to the receiver 701, the transmitter 703, and the memory 704, respectively.
  • the base station may also include a common component such as an antenna, a baseband processing component, a medium-frequency processing component, and an input/output device.
  • the embodiment of the present invention is not limited thereto.
  • the memory 704 stores a set of program codes, and the processor 702 is configured to call the program code stored in the memory 704 for performing the following operations:
  • the station 700 is a base station of a cell to which the relay node belongs, the second base station is a micro base station of the base station 700 or a neighboring base station of the base station 700, and the first physical downlink channel resource is configured to be able to configure the base station 700 in the first physical downlink channel resource.
  • the relay backhaul resource on the uplink generates a physical downlink channel resource that interferes with;
  • the base station 700 determines, according to the information of the first physical downlink channel resource, the base station 700 generates, for the relay node, all or part of the frequency domain resource block of the first backhaul resource in the first physical downlink channel resource, Transmitting resource configuration information, where the backhaul resource configuration information indicates that a second backhaul resource is configured for the relay node in the second physical downlink channel resource, where the second physical downlink channel resource is a physical downlink channel of the base station 700 a physical downlink channel resource except the first physical downlink channel resource in the resource, where the second backhaul resource uses an approximate null subframe ABS of the base station 700 in the time domain;
  • the backhaul resource configuration information is transmitted to the relay node by the transmitter 703.
  • the base station 700 re-allocates the backhaul resources for the relay nodes under the control of the base station 700 by receiving information of the first physical downlink channel resources from other cells to avoid signals from base stations or relay nodes of other cells.
  • the interference enhances the protection mechanism of the relay node's backhaul resources and improves the robustness of the relay node's control channel transmission.
  • Memory 704 can include read only memory and random access memory and provides instructions and data to processor 702. A portion of memory 704 may also include non-volatile random access memory (NVRAM).
  • NVRAM non-volatile random access memory
  • Processor 702 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 702 or an instruction in a form of software.
  • the processor 702 may be a general-purpose processor, including a central processing unit (Central Processing Unit), a network processor (Network Processor, NP), etc.; or a digital signal processor (DSP), dedicated Integrated circuit (ASIC), off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component.
  • Central Processing Unit Central Processing Unit
  • NP Network Processor
  • DSP digital signal processor
  • ASIC dedicated Integrated circuit
  • FPGA off-the-shelf programmable gate array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present invention may be implemented or executed.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a random access memory, a flash memory, a read only memory, a programmable read only memory or an electrically erasable programmable memory, a register, etc.
  • a cooked storage medium In a cooked storage medium.
  • the storage medium is located in the memory 704, and the processor 702 reads the information in the memory 704 and performs the steps of the above method in combination with its hardware.
  • the information about the first physical downlink channel resource includes: a cell identifier of the second base station and information of a frequency domain resource block of the first physical downlink channel resource.
  • the cell identifier of the second base station is used to determine whether the second base station is a micro base station of the base station 700 or a neighboring base station of the base station 700.
  • the information of the frequency domain resource block of the first physical downlink channel resource may include frequency domain resources.
  • the location information of the block (for example, the number of the frequency domain resource block), the location information may be used to determine a frequency domain resource block that the base station 700 needs to refrain from configuring the relay backhaul resource.
  • the information of the first physical downlink channel resource sent by the second base station may be information that only includes the frequency domain resource block that may be selected as the relay backhaul resource.
  • the base station 700 may determine, according to the cell identifier of the second base station, whether the second base station is a neighboring base station of the first base station, or determine whether the second base station is a macro base station of the first base station, to determine the received physical downlink channel. Whether the information of the resource is information of the first physical downlink channel resource.
  • the base station 700 may determine, according to the cell identifier of the second base station, whether the second base station is a neighboring base station of the first base station, or determine whether the second base station is a macro base station of the first base station, to determine the received physical downlink channel. Whether the information of the resource is information of the first physical downlink channel resource.
  • the information about the first physical downlink channel resource includes: Information of a Radio Bear (RB) resource and/or information of a second RB resource.
  • the first RB resource is a physical downlink channel frequency domain resource block whose signal power acquired by the second base station is greater than a predetermined threshold.
  • the second RB resource is a physical downlink channel frequency domain resource block used by the relay node of the second base station or the second base station on the approximate null subframe ABS of the base station 700.
  • the information of the first physical downlink channel resource may include: the second base station The information of the third RB resource that is sent, where the third RB resource may include a relay backhaul resource that is configured by the second base station on the ABS of the base station 700.
  • the information about the first physical downlink channel resource may be sent by the second base station by using a relatively narrowband transmit power RNTP message.
  • the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be taken to the embodiments of the present invention.
  • the implementation process constitutes any limitation.
  • Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed.
  • the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise.
  • the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present invention which is essential to the prior art or part of the technical solution, may be embodied in the form of a software product stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .

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Abstract

本发明实施例提供一种协调中继回传资源干扰的方法及基站，该方法包括：第一基站接收第二基站发送的第一物理下行信道资源的信息，第一基站为中继节点所属小区的基站，第一物理下行信道资源上的信号能够对第一基站配置在第一物理下行信道资源上的中继回传资源产生干扰；如果第一基站判断出该基站为该中继节点在该第一物理下行信道资源配置了第一回传资源，则第一基站为该中继节点配置第二回传资源。本发明实施例中，通过接收来自其它小区的第一物理下行信道资源的信息，为基站所管辖的中继节点重新分配回传资源以避免来自其它小区的基站或中继节点的信号干扰，增强了中继节点回传资源的保护机制，提高了中继节点控制信道传输的鲁棒性。

Description

协调中继回传资源干扰的方法及基站 技术领域
本发明涉及通信领域， 更具体地， 涉及协调中继回传资源干扰的方法及 基站。 背景技术
在无线异构网给 (Heterogeneous Network, HetNet)中， 以宏小区（Macro cell)和微微蜂窝小区 (Pico cell)共享频谱的场景为例， 由于 Pico cell和 Macro cell的发射功率差异较大， Pico cell的 UE在接收物理下行控制信道 (PDCCH, Physical Downlink Control Channel)时会受到来自 Macro cell的严重干扰， 导 致 PDCCH性能低下。 当 Pico cell引入小区范围扩展 (Cell Range Extension) 技术， 则其 PDCCH的性能更加恶化。 因此， 第三代合作伙伴计划 （3GPP, Third Generation Partnership Project ) ？ |入时间域 (Time domain)的小区间增强 型干扰十办调 ( enhanced Inter- Cell Interference Coordination, elCIC )机制 , 旨 在通过近似空子帧（ Almost Blank Subframe, ABS )解决 HetNet网络中不同 类型小区混合部署时的下行小区间干扰问题。近似空子帧是指在该子帧上只 有公共导频的传输， 或者只有公共导频的传输和以低功率或低活动性方式传 输的控制信道， 分别可将上述两种方案称为 ABS零功率方案和 ABS低功率 方案， 其中零功率和低功率是针对 PDCCH 而言的。 具体为干扰小区 (Aggressive cell)将自身个别下行子帧配置为 ABS子帧， 以此来减少对受害 小区 (Victim cell)下行传输， 特别是下行控制信道的干扰。
但是， 在现有技术中， 当中继节点 （Relay )处于所属基站的小区范围 扩展区域（ Cell Range Extension, CRE )时， Relay的中继回传 (Relay Backhaul) 使用的中继 -物理下行控制信道（ Relay-Physical Downlink Control Channel, R-PDCCH ) 资源的干扰协调机制并没有受到其所属基站的保护。 发明内容
本发明实施例提供了一种协调中继回传资源干扰的方法及基站， 能够增 强中继回传资源的保护机制。
第一方面， 提供了一种协调中继回传资源干扰的方法， 该方法包括： 第 一基站接收第二基站发送的第一物理下行信道资源的信息， 该第一基站为中 继节点所属小区的基站， 该第二基站为该第一基站的微基站或该第一基站的 相邻基站， 该第一物理下行信道资源上为能够对该第一基站配置在该第一物 理下行信道资源上的中继回传资源产生干扰的物理下行信道资源； 如果该第 一基站根据该第一物理下行信道资源的信息判断出， 该第一基站为该中继节 点在所述第一物理下行信道资源上配置了第一回传资源的全部或部分频域 资源块， 则该第一基站在第二物理下行信道资源上为该中继节点配置第二回 传资源， 其中， 该第二物理下行信道资源为该第一基站的物理下行信道资源 中第一物理下行信道资源除外的物理下行信道资源， 该第二回传资源在时域 上使用该第一基站的近似空子帧 ABS。
在第一种可能的实现方式中， 结合第一方面， 具体实现为： 该第一物理 下行信道资源的信息包括： 该第二基站的小区标识和该第一物理下行信道资 源的频域资源块的信息。
在第二种可能的实现方式中，结合第一方面或第一方面的第一种可能的 实现方式， 具体实现为： 如果该第二基站为该第一基站的相邻基站， 则该第 一物理下行信道资源的信息包括： 该第二基站获取的信号功率大于预定的阈 值的物理下行信道频域资源块的信息；和 /或该第二基站或该第二基站的中继 节点在该第一基站的近似空子帧 ABS上使用的物理下行信道频域资源块的 信息。
在第三种可能的实现方式中，结合第一方面或第一方面的第一种可能的 实现方式， 具体实现为： 如果该第二基站为该第一基站的微基站， 则该第一 物理下行信道资源的信息包括： 该第二基站配置在该第一基站的 ABS上的 中继回传资源的信息。
在第四种可能的实现方式中，结合第一方面或第一方面的第一种可能的 实现方式至第一方面的第三种可能的实现方式中任一种可能的实现方式， 具 体实现为： 该第一物理下行信道资源的信息通过相对窄带发送功率 RNTP消 息发送
第二方面， 提供了一种基站， 该基站为中继节点所属小区的基站， 该基 站包括：接收单元，用于接收第二基站发送的第一物理下行信道资源的信息， 该基站为中继节点所属小区的基站，该第二基站为该基站的微基站或该基站 的相邻基站， 该第一物理下行信道资源上的信号为能够对该基站配置在该第 一物理下行信道资源上的中继回传资源产生干扰的物理下行信道资源； 控制 单元， 用于如果根据该第一物理下行信道资源的信息判断出， 该基站为该中 继节点在该第一物理下行信道资源配置了第一回传资源的全部或部分频域 资源块， 则生成回传资源配置信息， 其中， 该回传资源配置信息指示在第二 物理下行信道资源中为该中继节点配置第二回传资源， 其中， 该第二物理下 行信道资源为该基站的物理下行信道资源中第一物理下行信道资源除外的 物理下行信道资源， 该第二回传资源在时域上使用该基站的近似空子帧 ABS; 发送单元， 用于向该中继节点发送该回传资源配置信息。
在第一种可能的实现方式中， 结合第二方面， 具体实现为： 该第一物理 下行信道资源的信息包括： 该第二基站的小区标识和该第一物理下行信道资 源的频域资源块的信息。
在第二种可能的实现方式中，结合第二方面或第二方面的第一种可能的 实现方式， 具体实现为： 如果该第二基站为该基站的相邻基站， 则该第一物 理下行信道资源的信息包括： 该第二基站获取的信号功率大于预定的阈值的 物理下行信道频域资源块的信息；和 /或该第二基站或该第二基站的中继节点 在该基站的近似空子帧 ABS上使用的物理下行信道频域资源块的信息。
在第三种可能的实现方式中，结合第二方面或第二方面的第一种可能的 实现方式， 具体实现为： 如果该第二基站为该基站的微基站， 则该第一物理 下行信道资源的信息包括： 该第二基站配置在该基站的 ABS上的中继回传 资源的信息。
在第四种可能的实现方式中，结合第二方面或第二方面的第一种可能的 实现方式至第二方面的第三种可能的实现方式中任一种可能的实现方式， 具 体实现为： 该第一物理下行信道资源的信息通过相对窄带发送功率 RNTP消 息发送。
本发明实施例中，通过接收来自其它小区的第一物理下行信道资源的信 息， 为基站所管辖的中继节点重新分配回传资源以避免来自其它小区的基站 或中继节点的信号干扰， 增强了中继节点的回传资源的保护机制， 提高了中 继节点控制信道传输的鲁棒性。 附图说明
为了更清楚地说明本发明实施例的技术方案， 下面将对实施例或现有技 术描述中所需要使用的附图作筒单地介绍， 显而易见地， 下面描述中的附图 仅仅是本发明的一些实施例， 对于本领域普通技术人员来讲， 在不付出创造 性劳动的前提下， 还可以根据这些附图获得其他的附图。
图 la是本发明实施例的一个应用场景示意图。
图 lb是本发明实施例的另一个应用场景示意图。 图 3是本发明实施例协调中继回传资源干扰的交互流程图。
图 4是本发明实施例协调中继回传资源干扰的另一交互流程图。
图 5是本发明实施例基站的示意框图。
图 6是本发明实施例基站的另一示意框图。
图 7是本发明实施例基站的另一示意框图。 具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行 清楚、 完整地描述， 显然， 所描述的实施例是本发明一部分实施例， 而不是 全部的实施例。 基于本发明中的实施例， 本领域普通技术人员在没有做出创 造性劳动前提下所获得的所有其他实施例， 都属于本发明保护的范围。
本发明的技术方案， 可以应用于各种通信系统， 例如： 全球移动通讯系 统（ GSM, Global System of Mobile communication ), 码分多址（ CDMA, Code Division Multiple Access ) 系统， 宽带码分多址（ WCDMA, Wideband Code Division Multiple Access Wireless ),通用分组无线业务 ( GPRS , General Packet Radio Service ), 长期演进 ( LTE, Long Term Evolution )等。
基站，可以是 GSM或 CDMA中的基站（ BTS, Base Transceiver Station ), 也可以是 WCDMA中的基站（NodeB ),还可以是 LTE中的演进型基站（ eNB 或 e-NodeB , evolutional Node B ), 本发明并不限定， 但为描述方便， 下述实 施例以 eNB为例进行说明。
图 la是本发明实施例一个具体应用场景的示意图。 如图 la所示的组网 中， 基站 101的小区 108与基站 102的小区 109相邻， 中继节点 （Relay ) 103与其所属小区的基站 101的回传链路( Backhaul Link )采用无线链路 105 , 在基站 101的近似空子帧 （Almost Blank Subframe, ABS )上传输。 其中继 回传 （Relay Backhaul ) 资源可能会受到相邻小区 109的基站 102的无线信 号 107的干扰或者相邻小区 109的第二 Relay 104的无线信号 106的干扰。 为了避免干扰， 需要基站 101与基站 102进行资源协调。
图 lb是本发明实施例另一个具体应用场景的示意图。如图 lb所示的组 网中， 基站 101 站 102的宏基站。 第一 Relay 103与其所属小区的基站 101的回传链路 ( Backhaul Link )采用无线链路 105 , 第二 Relay 104与其所 属小区的基站 102的回传链路 ( Backhaul Link )采用无线链路 106。基站 101 配置给第一 Relay 103的中继回传资源可能会与基站 102配置给第二 Relay 104的中继回传资源发生沖突。 为了避免干扰， 需要基站 101与基站 102进 行资源协调。
本发明中， 可结合图 la和图 lb的应用场景了解本发明实施例的方法、 基站及系统， 但本发明实施例的方法、 基站及系统并不限于图 la和图 lb所 示的应用场景。
图 2是本发明实施例协调中继回传资源干扰的方法流程图， 由第一基站 执行。 该方法包括：
201 , 第一基站接收第二基站发送的第一物理下行信道资源的信息。 其 中， 该第一基站为中继节点所属小区的基站， 该第二基站为该第一基站的微 基站或该第一基站的相邻基站， 该第一物理下行信道资源上的信号为能够对 该第一基站配置在该第一物理下行信道资源上的中继回传资源产生干扰的 物理下行信道资源。
第一物理下行信道资源上能够对该第一基站配置在该第一物理下行信 道资源上的中继回传资源产生干扰，是指如果第一基站把中继回传资源配置 在第一物理下行信道资源上， 则第一物理下行信道资源上的信号会对第一基 站的中继回传资源产生干扰。
202, 如果该第一基站根据该第一物理下行信道资源的信息判断出， 该 第一基站为该中继节点在该第一物理下行信道资源配置了第一回传资源的 全部或部分频域资源块， 则该第一基站在第二物理下行信道资源中为该中继 节点配置第二回传资源。 其中， 该第二物理下行信道资源为该第一基站的物 理下行信道资源中第一物理下行信道资源除外的物理下行信道资源， 该第二 回传资源在时域上使用该第一基站的近似空子帧 ABS。
可选地，如果第一基站根据第一物理下行信道资源的信息判断出该中继 节点的第一回传资源没有配置在上述第一物理下行信道资源上，也可以在上 述第二物理下行信道资源上为中继节点配置回传资源。
可选地， 如果第一基站尚未配置该中继节点的回传资源， 也可以在上述 第二物理下行信道资源上为中继节点配置回传资源。
该第二物理下行信道资源为该第一基站的物理下行信道资源中第一物 理下行信道资源除外的物理下行信道资源， 换句话说， 第二物理下行信道资 源在频域上与第一物理下行信道资源错开。 在本发明实施例中， 物理下行信 道资源可以是频域资源块。 可以理解， 第二物理下行信道资源在频域上与第 一物理下行信道资源错开，也就是，第一基站在配置第二回传资源的过程中， 第二回传资源所占用的频域资源块与第一回传资源所占用的频域资源块是 不同的。
本发明实施例中，通过接收来自其它小区的第一物理下行信道资源的信 息， 为基站所管辖的中继节点重新分配中继回传资源以避免来自其它小区的 基站或中继节点的信号干扰， 增强了中继节点的中继回传资源的保护机制， 提高了中继回传的控制信道的鲁棒性。
本发明实施例中， 第一基站为中继节点配置的中继回传资源， 可以是物 理下行信道的正交频分复用 ( Orthogonal Frequency Division Multiplexing, OFDM )资源的第 3个时隙的频域资源块或第 4个时隙的频域资源块， 当然， 也不排除使用其他时隙频域资源块的可能性， 本发明在此并不做限制。
可选地， 该第一物理下行信道资源的信息包括： 该第二基站的小区标识 和该第一物理下行信道资源的频域资源块的信息。该第二基站的小区标识可 以用于确定该第二基站是否为该第一基站的微基站或该第一基站的相邻基 站。 该第一物理下行信道资源的频域资源块的信息， 可以包括频域资源块的 位置信息 （具体可以为频域资源块的编号）， 该位置信息可用于确定该第一 基站配置中继回传资源需要错开的频域资源块。
进一步地， 第二基站发送的第一物理下行信道资源的信息， 可以是只包 含可能被选为中继回传资源的频域资源块的信息。
进一步地， 第一基站根据第二基站的小区标识， 可确定第二基站是否为 第一基站的相邻基站， 或者第二基站是否为第一基站的宏基站， 以判断接收 到的物理下行信道资源的信息是否为该第一物理下行信道资源的信息。
可选地，本发明实施例中，第一物理下行信道资源可以是 PDSCH资源， 也可以是复用了 PDSCH资源的 PDCCH的资源， 例如 R-PDCCH资源。 第 二基站发送的第一物理下行信道资源的信息， 可包括用于数据传输的
PDSCH资源的信息， 和 /或用于控制信道扩展的 PDSCH资源的信息， 例如， 用于中继回传的 R-PDCCH资源的信息。 进一步地， PDSCH资源的信息， 可包括 PDSCH资源的位置信息， 或者还可包括 PDSCH资源的信号功率信 息； R-PDCCH资源的信息， 可包括 R-PDCCH资源的位置信息。
可选地， 作为一个实施例， 如果第二基站为第一基站的相邻基站， 如果 该第二基站为该第一基站的相邻基站， 则该第一物理下行信道资源的信息包 括： 第一无线承载 (Radio Bear, RB)资源的信息和 /或第二 RB资源的信息。
第一 RB资源为第二基站获取的信号功率大于预定的阈值的物理下行信 道频域资源块。 这个预定阈值， 可以是通信协议中规定的阈值， 或者是运营 商根据通信策略或者系统中可用的资源信息确定的阈值，或者是设备生产商 出厂时预设的阈值， 本发明在此并不做限制。 第一 RB资源的信号功率大于 预定阈值， 则可以认为第一 RB资源的信号可能会对配置在第一 RB资源上 的中继回传资源造成干扰，如果第一基站将中继节点的中继回传资源配置在 第一 RB资源上， 则需要对中继节点的中继回传资源进行调整。
第二 RB资源为第二基站或第二基站的中继节点在该第一基站的近似空 子帧 ABS上使用的物理下行信道频域资源块。 第一基站可向第二基站发送 第一基站的 ABS子帧， 第二基站根据第一基站发送的 ABS子帧的信息向第 一基站发送该第二基站或该第二基站的中继节点在该第一基站的 ABS上的 使用的物理下行信道频域资源块的信息。如果第一基站将中继节点的中继回 传资源配置在第二 RB资源上，则需要对中继节点的中继回传资源进行调整。
第一 RB资源和第二 RB资源都属于第一物理下行信道资源。 如果第一 基站的中继节点的中继回传资源的全部或部分频域资源块配置第一 RB资源 或第二 RB资源中的频域资源块时， 第一基站需要为中继节点配置第二回传 资源。 第二回传资源在时域上使用第一基站的 ABS子帧， 在频域上使用第 一基站的物理下行信道资源中第一 RB资源和第二 RB资源除外的频域资源 块。
可选地， 作为另一个实施例， 如果第二基站为第一基站的微基站（或者 说第一基站是第二基站的宏基站；)， 则该第一物理下行信道资源的信息可包 括： 第二基站发送的第三 RB资源的信息， 其中， 该第三 RB资源可包括第 二基站配置在该第一基站的 ABS上的中继回传资源。 由于微基站和宏基站 使用相同的 ABS, 因此，微基站可以不需要考虑来自宏基站的物理下行高功 率信号的干扰， 可以只需要考虑同频的中继回传资源的干扰。 当微基站和宏 基站使用频域上相同的中继回传资源时，宏基站需要避让微基站的中继回传 资源。 因此， 第一基站在为中继节点配置中继回传资源时， 要使用第一基站 的物理下行信道资源中第三 RB资源除外的频域资源块。
可选地， 该第一物理下行信道资源的信息， 可以是第二基站通过相对窄 带发送功率 RNTP消息发送的。
图 3是本发明实施例协调中继回传资源干扰的交互流程图。
301 , 第二基站向第一基站发送第一相对窄带发送功率（RNTP ) 消息。 其中，该第一 RNTP消息指示第二基站中信号功率超过预定阈值的第一 无线承载（Radio Bear, RB ) 资源的信息， 该第一 RNTP消息中可携带第二 基站的小区标识和该第一 RB资源的位置信息。
302, 第一基站向第二基站及其管辖的第一 Relay发送第一基站的近似 空子帧 （Almost Blank Subframe, ABS ) 的信息。
303 , 第二基站向第一基站发送第二 RNTP消息。
其中，该第二 RNTP消息指示第二基站或第二基站的中继节点在该 ABS 上的使用的频域资源块第二 RB资源的信息。 同样， 该第二 RNTP消息中可 携带第二基站的小区标识和该第二 RB资源的位置信息。
304, 当第一基站确定第一 Relay 的第一回传资源的全部或部分频域资 源块配置在第一 RNTP消息或第二 RNTP消息指示的频域资源块时（或者说 第一基站确定第一 Relay的第一回传资源的全部或部分频域资源块配置在第 一 RB资源或第二 RB资源上；)，向第一 Relay发送第二 Relay回传资源配置， 指示第一 Relay将其回传资源从第一回传资源上配置到第二回传资源上。 第 二回传资源在频域上不使用第一 RB资源或第二 RB资源的频域资源块， 换 句话说， 第二回传资源在频域上可使用第一基站的物理下行资源中第一 RB 资源和第二 RB资源的频域资源块除外的频域资源块。
本发明实施中， 第一基站通过接收第二基站的高功率 RB资源 （即可能 对第二基站的相邻小区的中继节点造成干扰的 RB资源）或第二基站及第二 基站的中继节点在第一基站的 ABS子帧上的使用的 RB资源，并根据这两类 RB资源为第一 Relay重新分配中继回传资源， 以避免相邻小区的基站信号 对第一 Relay的中继回传资源的干扰， 增强了中继节点的中继回传资源的保 护机制， 提高了中继回传的控制信道的鲁棒性。
本发明实施例中，第二基站可能只向第一基站发送第一 RNTP消息或第 二 RNTP消息，但这并不影响第一基站根据接收到的第一物理下行信道资源 的信息对第一基站的中继节点的中继回传资源进行重配置操作。
本发明实施例中，如果第一基站的中继节点的中继回传资源不受第二基 站及第二基站的中继节点的信号干扰， 可以不需要进行回传资源的重新配 置。
图 4是本发明实施例协调中继回传资源干扰的又一交互流程图。本发明 实施例中， 第一基站是第二基站的宏基站。 此时， 第一基站和第二基站帧同 步， 但二者的 ABS所在子帧的帧号可以相同， 也可以不同。
401、 第一基站向第一 Relay发送第一回传资源配置信息， 第二基站向 第二基站发送第二回传资源配置信息。
402、 第二基站向第一基站发送配置给第二 Relay的第二回传资源信息。
403、 当第一基站发现第一回传资源配置信息所配置的回传资源的全部 或部分频域资源块与第二回传资源信息指示的回传资源存在发生沖突的可 能性时（或者说第一回传资源配置信息所配置的回传资源的全部或部分频域 资源块配置在第二回传资源信息指示的回传资源内 ),第一基站向第一 Relay 发送第三回传资源配置信息， 指示第一 Relay将回传资源配置到第三回传资 源配置信息所指示的第三回传资源上，以避开第二 Relay的信号干扰， 同时， 第一基站可向第二基站发送第三回传资源信息。 其中， 第一回传资源配置信 息所配置的回传资源与第二回传资源信息指示的回传资源存在发生沖突的 可能性，是指第一回传资源的频域资源块的全部或部分落入第二回传资源信 息指示的回传资源中。第三回传资源在频域上不使用第二回传资源信息指示 的回传资源， 换句话说， 第三回传资源在频域上可使用物理下行信道资源中 第二回传资源信息指示的回传资源除外的频域资源块。
本发明实施例中， 第一基站通过接收第二基站的第二 Relay的第二回传 资源信息， 并为回传资源配置与第二回传资源沖突的第一 Relay重新配置第 三回传资源信息， 从而避开了第二 Relay的信号干扰。
图 5是本发明实施例基站 500的示意框图。基站 500是中继节点所属小 区的基站， 可包括接收单元 501 , 控制单元 502和发送单元 503。
接收单元 501 , 可接收第二基站发送的第一物理下行信道资源的信息， 基站 500为中继节点所属小区的基站， 该第二基站为基站 500的微基站或基 站 500的相邻基站， 该第一物理下行信道资源为能够对基站 500配置在该第 一物理下行信道资源上的中继回传资源产生干扰的物理下行信道资源。
控制单元 502, 用于如果根据该第一物理下行信道资源的信息判断出， 基站 500为该中继节点在该第一物理下行信道资源配置了第一回传资源的全 部或部分频域资源块， 则生成回传资源配置信息， 其中， 该回传资源配置信 息指示在第二物理下行信道资源中为该中继节点配置第二回传资源， 其中， 该第二物理下行信道资源为基站 500的物理下行信道资源中第一物理下行信 道资源除外的物理下行信道资源， 该第二回传资源在时域上使用基站 500的 近似空子帧 ABS。
发送单元 503 , 用于向该中继节点发送该回传资源配置信息。
本发明实施例中，基站 500通过接收来自其它小区的第一物理下行信道 资源的信息， 为基站 500所管辖的中继节点重新分配回传资源以避免来自其 它小区的基站或中继节点的信号干扰，增强了中继节点的回传资源的保护机 制， 提高了中继节点控制信道传输的鲁棒性。
在硬件实现上， 以上发送单元可以为发射机或收发机， 以上接收单元可 以为接收机或收发机，且该发送单元和接收单元可以集成在一起构成收发单 元， 对应于硬件实现为收发机。 以上控制单元 502可以以硬件形式内嵌于或 独立于基站的处理器中， 也可以以软件形式存储于基站的存储器中， 以便于 处理器调用执行以上各个模块对应的操作。 该处理器可以为中央处理单元 ( CPU )、 微处理器、 单片机等。
可选地， 该第一物理下行信道资源的信息包括： 该第二基站的小区标识 和该第一物理下行信道资源的频域资源块的信息。
进一步地， 基站 500根据第二基站的小区标识， 可确定第二基站是否为 第一基站的相邻基站， 或者第二基站是否为第一基站的宏基站， 以判断接收 到的物理下行信道资源的信息是否为该第一物理下行信道资源的信息， 该第 二基站的小区标识用于确定该第二基站是否为基站 500的微基站或基站 500 的相邻基站， 该第一物理下行信道资源的频域资源块的信息， 可以包括频域 资源块的位置信息 （例如， 频域资源块的编号）， 该位置信息可以用于确定 基站 500配置中继回传资源需要错开的频域资源块。
进一步地， 第二基站发送的第一物理下行信道资源的信息， 可以是只包 含可能被选为中继回传资源的频域资源块的信息。
可选地， 本发明中， 第一物理下行信道资源可以是 PDSCH资源， 也可 以是复用了 PDSCH资源的 PDCCH的资源， 例如 R-PDCCH资源。 第二基 站发送的第一物理下行信道资源的信息， 可包括用于数据传输的 PDSCH资 源的信息， 和 /或用于控制信道扩展的 PDSCH资源的信息， 例如， 用于中继 回传的 R-PDCCH资源的信息。进一步地， PDSCH资源的信息，可包括 PDSCH 资源的位置信息， 或者还可包括 PDSCH 资源的信号功率信息； R-PDCCH 资源的信息， 可包括 R-PDCCH资源的位置信息。
可选地， 作为一个实施例， 如果第二基站为基站 500的相邻基站， 如果 该第二基站为该基站 500的相邻基站， 则该第一物理下行信道资源的信息包 括： 第一无线承载 (Radio Bear, RB)资源的信息和 /或第二 RB资源的信息。
第一 RB资源为第二基站获取的信号功率大于预定的阈值的物理下行信 道频域资源块。 这个预定阈值， 可以是通信协议中规定的阈值， 或者是运营 商根据通信策略或者系统中可用的资源信息确定的阈值， 或者是设备生产商 出厂时预设的阈值， 本发明在此并不做限制。 第一 RB资源的信号功率大于 预定阈值， 则可以认为第一 RB资源的信号可能会对配置在第一 RB资源上 的中继回传资源造成干扰， 如果基站 500将中继节点的中继回传资源配置 在第一 RB资源上， 则需要对中继节点的中继回传资源进行调整。
第二 RB资源为第二基站或第二基站的中继节点在该基站 500的近似空 子帧 ABS上使用的物理下行信道频域资源块。 基站 500可向第二基站发送 基站 500的 ABS子帧， 第二基站根据基站 500发送的 ABS子帧的信息向基 站 500发送该第二基站或该第二基站的中继节点在该基站 500的 ABS上的 使用的物理下行信道频域资源块的信息。如果基站 500将中继节点的中继回 传资源配置在第二 RB资源上，则需要对中继节点的中继回传资源进行调整。
第一 RB资源和第二 RB资源都属于第一物理下行信道资源。 如果基站
500的中继节点的中继回传资源的全部或部分频域资源块配置第一 RB资源 或第二 RB资源中的频域资源块时， 基站 500需要为中继节点配置第二回传 资源。 第二回传资源在时域上使用基站 500的 ABS子帧， 在频域上使用基 站 500的物理下行信道资源中第一 RB资源和第二 RB资源除外的频域资源 块。
可选地， 作为另一个实施例， 如果第二基站为基站 500的微基站（或者 说基站 500是第二基站的宏基站）， 则该第一物理下行信道资源的信息可包 括： 第二基站发送的第三 RB资源的信息， 其中， 该第三 RB资源可包括第 二基站配置在该基站 500的 ABS上的中继回传资源。 由于微基站和宏基站 使用相同的 ABS, 因此，微基站不需要考虑来自宏基站的物理下行高功率信 号的干扰， 只需要考虑同频的中继回传资源的干扰。 当微基站和宏基站使用 频域上相同的中继回传资源时， 宏基站需要避让微基站的中继回传资源。 因 此， 基站 500在为中继节点配置中继回传资源时， 要使用基站 500的物理下 行信道资源中第三 RB资源除外的频域资源块。
可选地， 该第一物理下行信道资源的信息， 可以是第二基站通过相对窄 带发送功率 RNTP消息发送的。
可选地，基站 500可以实现本发明图 2至图 4任一实施例所示的协调中 继回传资源干扰的方法， 本发明在此不再赘述。
图 6是本发明实施例基站 600的示意框图。基站 600是中继节点所属小 区的基站， 可包括接收器 601、 处理器 602、 发射器 603和存储器 604。
接收器 601 , 可接收第二基站发送的第一物理下行信道资源的信息， 基 站 600为中继节点所属小区的基站，该第二基站为基站 600的微基站或基站 600的相邻基站， 该第一物理下行信道资源为能够对基站 600配置在该第一 物理下行信道资源上的中继回传资源产生干扰的物理下行信道资源。
处理器 602, 用于如果根据该第一物理下行信道资源的信息判断出，基 站 600为该中继节点配置在该第一物理下行信道资源了第一回传资源的全部 或部分频域资源块， 则生成回传资源配置信息， 其中， 该回传资源配置信息 指示在第二物理下行信道资源中为该中继节点配置第二回传资源， 其中， 该 第二物理下行信道资源为基站 600的物理下行信道资源中第一物理下行信道 资源除外的频域资源块， 该第二回传资源在时域上使用基站 600的近似空子 帧 ABS。
发射器 603 , 用于向该中继节点发送该回传资源配置信息。
存储器 604, 可存储使得处理器 602在如果基站 600为该中继节点配置 的第一回传资源的全部或部分频域资源块使用该第一物理下行信道资源， 则 生成回传资源配置信息的指令。
发射器 603 , 用于向该中继节点发送该回传资源配置信息。
本发明实施例中，基站 600通过接收来自其它小区的第一物理下行信道 资源的信息， 为基站 600所管辖的中继节点重新分配回传资源以避免来自其 它小区的基站或中继节点的信号干扰，增强了中继节点的回传资源的保护机 制， 提高了中继节点控制信道传输的鲁棒性。
处理器 602控制基站 600的操作， 处理器 602还可以称为 CPU ( Central Processing Unit, 中央处理单元）。 存储器 604可以包括只读存储器和随机存 取存储器， 并向处理器 602提供指令和数据。 存储器 604的一部分还可以包 括非易失性随机存取存储器（ NVRAM )。 具体的应用中， 基站 600的各个组 件通过总线系统 605耦合在一起， 其中总线系统 605除包括数据总线之外， 还可以包括电源总线、控制总线和状态信号总线等。但是为了清楚说明起见， 在图中将各种总线都标为总线系统 605。
上述本发明实施例揭示的方法可以应用于处理器 602中，或者由处理器 602实现。 处理器 602可能是一种集成电路芯片， 具有信号的处理能力。 在 实现过程中， 上述方法的各步骤可以通过处理器 602中的硬件的集成逻辑电 路或者软件形式的指令完成。 上述的处理器 602可以是通用处理器、 数字信 号处理器（DSP )、 专用集成电路（ASIC )、 现成可编程门阵列 （FPGA )或 者其他可编程逻辑器件、 分立门或者晶体管逻辑器件、 分立硬件组件。 可以 实现或者执行本发明实施例中的公开的各方法、 步骤及逻辑框图。 通用处理 器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本发明 实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成， 或者 用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存 储器， 闪存、 只读存储器， 可编程只读存储器或者电可擦写可编程存储器、 寄存器等本领域成熟的存储介质中。该存储介质位于存储器 604,处理器 602 读取存储器 604中的信息， 结合其硬件完成上述方法的步骤。
可选地， 该第一物理下行信道资源的信息包括： 该第二基站的小区标识 和该第一物理下行信道资源的频域资源块的信息。该第二基站的小区标识用 于确定该第二基站是否为基站 600的微基站或基站 600的相邻基站， 该第一 物理下行信道资源的频域资源块的信息可以包括频域资源块的位置信息（例 如， 频域资源块的编号）， 该位置信息可用于确定基站 600配置中继回传资 源需要避让的频域资源块。
进一步地， 第二基站发送的第一物理下行信道资源的信息， 可以是只包 含可能被选为中继回传资源的频域资源块的信息。 进一步地， 基站 600根据第二基站的小区标识， 可确定第二基站是否为 第一基站的相邻基站， 或者确定第二基站是否为第一基站的宏基站， 以判断 接收到的物理下行信道资源的信息是否为该第一物理下行信道资源的信息。
进一步地， 基站 600根据第二基站的小区标识， 可确定第二基站是否为 第一基站的相邻基站， 或者确定第二基站是否为第一基站的宏基站， 以判断 接收到的物理下行信道资源的信息是否为该第一物理下行信道资源的信息。
可选地， 作为一个实施例， 如果第二基站为基站 600的相邻基站， 如果 该第二基站为该基站 600的相邻基站， 则该第一物理下行信道资源的信息包 括： 第一无线承载 (Radio Bear, RB)资源的信息和 /或第二 RB资源的信息。 第一 RB资源为第二基站获取的信号功率大于预定的阈值的物理下行信道频 域资源块。 第二 RB资源为第二基站或第二基站的中继节点在该基站 600的 近似空子帧 ABS上使用的物理下行信道频域资源块。
可选地， 作为另一个实施例， 如果第二基站为基站 600的微基站（或者 说基站 600是第二基站的宏基站）， 则该第一物理下行信道资源的信息可包 括： 第二基站发送的第三 RB资源的信息， 其中， 该第三 RB资源可包括第 二基站配置在该基站 600的 ABS上的中继回传资源。
可选地， 该第一物理下行信道资源的信息， 可以是第二基站通过相对窄 带发送功率 RNTP消息发送的。
可选地，基站 600可以实现本发明图 2至图 4任一实施例所示的协调中 继回传资源干扰的方法， 本发明在此不再赘述。
应理解， 在本发明的各种实施例中， 上述各过程的序号的大小并不意味 着执行顺序的先后， 各过程的执行顺序应以其功能和内在逻辑确定， 而不应 对本发明实施例的实施过程构成任何限定。
图 7是本发明实施例基站 700的示意框图。基站 700是中继节点所属小 区的基站。 如图所示， 该基站 700可包括接收机 701、 发射机 703和存储器 704以及分别与接收机 701、发射机 703和存储器 704连接的处理器 702。 当 然， 基站还可以包括天线、 基带处理部件、 中射频处理部件、 输入输出装置 等通用部件， 本发明实施例在此不再任何限制。
其中， 存储器 704中存储一组程序代码， 且处理器 702用于调用存储器 704中存储的程序代码， 用于执行以下操作：
通过接收机 701接收第二基站发送的第一物理下行信道资源的信息，基 站 700为中继节点所属小区的基站，该第二基站为基站 700的微基站或基站 700的相邻基站， 该第一物理下行信道资源为能够对基站 700配置在该第一 物理下行信道资源上的中继回传资源产生干扰的物理下行信道资源；
如果基站 700根据该第一物理下行信道资源的信息判断出，基站 700为 该中继节点在该第一物理下行信道资源配置了第一回传资源的全部或部分 频域资源块， 则生成回传资源配置信息， 其中， 该回传资源配置信息指示在 第二物理下行信道资源中为该中继节点配置第二回传资源， 其中， 该第二物 理下行信道资源为基站 700的物理下行信道资源中第一物理下行信道资源除 外的物理下行信道资源， 该第二回传资源在时域上使用基站 700的近似空子 帧 ABS;
通过发射机 703向该中继节点发送该回传资源配置信息。
本发明实施例中，基站 700通过接收来自其它小区的第一物理下行信道 资源的信息， 为基站 700所管辖的中继节点重新分配回传资源以避免来自其 它小区的基站或中继节点的信号干扰，增强了中继节点的回传资源的保护机 制， 提高了中继节点控制信道传输的鲁棒性。
存储器 704可以包括只读存储器和随机存取存储器， 并向处理器 702提 供指令和数据。 存储器 704 的一部分还可以包括非易失性随机存取存储器 ( NVRAM )。
上述如本发明图 2至图 4任一实施例揭示的方法可以应用于处理器 702 中， 或者由处理器 702实现。 处理器 702可能是一种集成电路芯片， 具有信 号的处理能力。 在实现过程中， 上述方法的各步骤可以通过处理器 702中的 硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器 702可以是通 用处理器， 包括中央处理器（Central Processing Unit, 筒称 CPU )、 网络处理 器（Network Processor, 筒称 NP )等； 还可以是数字信号处理器（ DSP )、 专用集成电路（ASIC )、 现成可编程门阵列 （FPGA )或者其他可编程逻辑 器件、 分立门或者晶体管逻辑器件、 分立硬件组件。 可以实现或者执行本发 明实施例中的公开的各方法、 步骤及逻辑框图。 通用处理器可以是微处理器 或者该处理器也可以是任何常规的处理器等。结合本发明实施例所公开的方 法的步骤可以直接体现为硬件译码处理器执行完成， 或者用译码处理器中的 硬件及软件模块组合执行完成。 软件模块可以位于随机存储器， 闪存、 只读 存储器， 可编程只读存储器或者电可擦写可编程存储器、 寄存器等本领域成 熟的存储介质中。 该存储介质位于存储器 704, 处理器 702读取存储器 704 中的信息， 结合其硬件完成上述方法的步骤。
可选地， 该第一物理下行信道资源的信息包括： 该第二基站的小区标识 和该第一物理下行信道资源的频域资源块的信息。， 该第二基站的小区标识 用于确定该第二基站是否为基站 700的微基站或基站 700的相邻基站，该第 一物理下行信道资源的频域资源块的信息， 可以包括频域资源块的位置信息 (例如， 频域资源块的编号）， 该位置信息可以用于确定基站 700配置中继 回传资源需要避让的频域资源块。
进一步地， 第二基站发送的第一物理下行信道资源的信息， 可以是只包 含可能被选为中继回传资源的频域资源块的信息。
进一步地， 基站 700根据第二基站的小区标识， 可确定第二基站是否为 第一基站的相邻基站， 或者确定第二基站是否为第一基站的宏基站， 以判断 接收到的物理下行信道资源的信息是否为该第一物理下行信道资源的信息。
进一步地， 基站 700根据第二基站的小区标识， 可确定第二基站是否为 第一基站的相邻基站， 或者确定第二基站是否为第一基站的宏基站， 以判断 接收到的物理下行信道资源的信息是否为该第一物理下行信道资源的信息。
可选地， 作为一个实施例， 如果第二基站为基站 700的相邻基站， 如果 该第二基站为该基站 700的相邻基站， 则该第一物理下行信道资源的信息包 括： 第一无线承载 (Radio Bear, RB)资源的信息和 /或第二 RB资源的信息。 第一 RB资源为第二基站获取的信号功率大于预定的阈值的物理下行信道频 域资源块。 第二 RB资源为第二基站或第二基站的中继节点在该基站 700的 近似空子帧 ABS上使用的物理下行信道频域资源块。
可选地， 作为另一个实施例， 如果第二基站为基站 700的微基站（或者 说基站 700是第二基站的宏基站）， 则该第一物理下行信道资源的信息可包 括： 第二基站发送的第三 RB资源的信息， 其中， 该第三 RB资源可包括第 二基站配置在该基站 700的 ABS上的中继回传资源。
可选地， 该第一物理下行信道资源的信息， 可以是第二基站通过相对窄 带发送功率 RNTP消息发送的。
应理解， 在本发明的各种实施例中， 上述各过程的序号的大小并不意味 着执行顺序的先后， 各过程的执行顺序应以其功能和内在逻辑确定， 而不应 对本发明实施例的实施过程构成任何限定。 本领域普通技术人员可以意识到， 结合本文中所公开的实施例描述的各 示例的单元及算法步骤， 能够以电子硬件、 或者计算机软件和电子硬件的结 合来实现。 这些功能究竟以硬件还是软件方式来执行， 取决于技术方案的特 定应用和设计约束条件。 专业技术人员可以对每个特定的应用来使用不同方 法来实现所描述的功能， 但是这种实现不应认为超出本发明的范围。
所属领域的技术人员可以清楚地了解到， 为描述的方便和筒洁， 上述描 述的系统、 装置和单元的具体工作过程， 可以参考前述方法实施例中的对应 过程， 在此不再赘述。
在本申请所提供的几个实施例中， 应该理解到， 所揭露的系统、 装置和 方法， 可以通过其它的方式实现。 例如， 以上所描述的装置实施例仅仅是示 意性的， 例如， 所述单元的划分， 仅仅为一种逻辑功能划分， 实际实现时可 以有另外的划分方式， 例如多个单元或组件可以结合或者可以集成到另一个 系统， 或一些特征可以忽略， 或不执行。 另一点， 所显示或讨论的相互之间 的耦合或直接耦合或通信连接可以是通过一些接口， 装置或单元的间接耦合 或通信连接， 可以是电性， 机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作 为单元显示的部件可以是或者也可以不是物理单元， 即可以位于一个地方， 或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或 者全部单元来实现本实施例方案的目的。
另外， 在本发明各个实施例中的各功能单元可以集成在一个处理单元 中， 也可以是各个单元单独物理存在， 也可以两个或两个以上单元集成在一 个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使 用时， 可以存储在一个计算机可读取存储介质中。 基于这样的理解， 本发明 的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部 分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质 中， 包括若干指令用以使得一台计算机设备（可以是个人计算机， 服务器， 或者网络设备等）执行本发明各个实施例所述方法的全部或部分步骤。 而前 述的存储介质包括： U盘、移动硬盘、只读存储器（ ROM, Read-Only Memory )、 随机存取存储器（RAM, Random Access Memory ), 磁碟或者光盘等各种可 以存储程序代码的介质。 以上所述， 仅为本发明的具体实施方式， 但本发明的保护范围并不局限 于此， 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内， 可轻易 想到变化或替换， 都应涵盖在本发明的保护范围之内。 因此， 本发明的保护 范围应以所述权利要求的保护范围为准。

Claims

权利要求
1、 一种协调中继回传资源干扰的方法， 其特征在于， 包括：
第一基站接收第二基站发送的第一物理下行信道资源的信息，所述第一 基站为中继节点所属小区的基站， 所述第二基站为所述第一基站的微基站或 所述第一基站的相邻基站， 所述第一物理下行信道资源为能够对所述第一基 站配置在所述第一物理下行信道资源上的回传资源产生干扰的物理下行信 道资源；
如果所述第一基站根据所述第一物理下行信道资源的信息判断出，所述 第一基站为所述中继节点在所述第一物理下行信道资源上配置了第一回传 资源的全部或部分频域资源块， 则所述第一基站在第二物理下行信道资源上 为所述中继节点配置第二回传资源， 其中， 所述第二物理下行信道资源为所 述第一基站的物理下行信道资源中第一物理下行信道资源除外的物理下行 信道资源， 所述第二回传资源在时域上使用所述第一基站的近似空子帧 ABS。
2、 如权利要求 1所述的方法， 其特征在于， 所述第一物理下行信道资 源的信息包括： 第一物理下行信道资源的频域资源块的信息。
3、 如权利要求 1或 2所述的方法， 其特征在于，
如果所述第二基站为所述第一基站的相邻基站， 则所述第一物理下行信 道资源的信息包括：
所述第二基站获取的信号功率大于预定的阈值的物理下行信道频域资 源块的信息； 和 /或
所述第二基站或所述第二基站的中继节点在所述第一基站的近似空子 帧 ABS上使用的物理下行信道频域资源块的信息。
4、 如权利要 1或 2所述的方法， 其特征在于， 如果所述第二基站为所 述第一基站的微基站， 则所述第一物理下行信道资源的信息包括： 所述第二 基站配置在所述第一基站的 ABS上的中继回传资源的信息。
5、 如权利要求 1至 4任一项所述的方法， 其特征在于， 所述第一物理 下行信道资源的信息通过相对窄带发送功率 RNTP消息发送。
6、 一种基站， 其特征在于， 所述基站为中继节点所属小区的基站， 所 述基站包括： 接收单元， 用于接收第二基站发送的第一物理下行信道资源的信息， 所 述基站为中继节点所属小区的基站，所述第二基站为所述基站的微基站或所 述基站的相邻基站， 所述第一物理下行信道资源上的信号为能够对所述基站 配置在所述第一物理下行信道资源上的中继回传资源产生干扰物理下行信 道资源；
控制单元， 用于如果根据所述第一物理下行信道资源的信息判断出， 所 述基站为所述中继节点在所述第一物理下行信道资源上配置了第一回传资 源的全部或部分频域资源块， 则生成回传资源配置信息， 其中， 所述回传资 源配置信息指示在第二物理下行信道资源中为所述中继节点配置第二回传 资源， 其中， 所述第二物理下行信道资源为所述基站的物理下行信道资源中 第一物理下行信道资源除外的物理下行信道资源，所述第二回传资源在时域 上使用所述基站的近似空子帧 ABS;
发送单元， 用于向所述中继节点发送所述回传资源配置信息。
7、 如权利要求 6所述的基站， 其特征在于， 所述第一物理下行信道资 源的信息包括： 所述第二基站的小区标识和所述第一物理下行信道资源的频 域资源块信息。
8、 如权利要求 6或 7所述的基站， 其特征在于， 如果所述第二基站为 所述基站的相邻基站， 则所述第一物理下行信道资源的信息包括：
所述第二基站获取的信号功率大于预定的阈值的物理下行信道频域资 源块的信息； 和 /或
所述第二基站或所述第二基站的中继节点在所述基站的近似空子帧 ABS上使用的物理下行信道频域资源块的信息。
9、 如权利要求 6或 7所述的基站， 其特征在于， 如果所述第二基站为 所述基站的微基站， 则所述第一物理下行信道资源的信息包括： 所述第二基 站配置在所述基站的 ABS上的中继回传资源的信息。
10、 如权利要求 6至 9任一项所述的基站， 其特征在于， 所述第一物理 下行信道资源的信息通过相对窄带发送功率 RNTP消息发送。
PCT/CN2012/088083 2012-12-31 2012-12-31 协调中继回传资源干扰的方法及基站 WO2014101205A1 (zh)

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