WO2014139363A1 - 一种通信节点间干扰协调的系统及方法 - Google Patents

一种通信节点间干扰协调的系统及方法 Download PDF

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Publication number
WO2014139363A1
WO2014139363A1 PCT/CN2014/072749 CN2014072749W WO2014139363A1 WO 2014139363 A1 WO2014139363 A1 WO 2014139363A1 CN 2014072749 W CN2014072749 W CN 2014072749W WO 2014139363 A1 WO2014139363 A1 WO 2014139363A1
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WIPO (PCT)
Prior art keywords
type
signaling
radio transceiver
resource
resource allocation
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PCT/CN2014/072749
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English (en)
French (fr)
Inventor
李儒岳
李剑
谢峰
薛妍
郑勇
张峻峰
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ZTE Corp
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ZTE Corp
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Priority to EP14765346.3A priority Critical patent/EP2975898A4/en
Priority to US14/776,534 priority patent/US20160037538A1/en
Publication of WO2014139363A1 publication Critical patent/WO2014139363A1/zh
Anticipated expiration legal-status Critical
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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/54Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/10Scheduling measurement reports ; Arrangements for measurement reports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04Large scale networks; Deep hierarchical networks
    • H04W84/042Public Land Mobile systems, e.g. cellular systems
    • H04W84/045Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/16Interfaces between hierarchically similar devices
    • H04W92/20Interfaces between hierarchically similar devices between access points

Definitions

  • the present invention relates to the field of communications, and in particular, to a system and method for interference coordination between communication nodes. Background technique
  • the existing cellular network technology has the characteristics of "heavy outdoor, light indoor”, “heavy cellular networking, light isolated hotspot”, “heavy mobile switching, light fixed nomadic” and the like.
  • One of the priorities of the LTE-Advance is the optimization of indoor and hotspot scenarios.
  • Heterogeneous networks as a technology that significantly increases system throughput and improves overall network efficiency, are well suited to the requirements of LTE-Advance.
  • the heterogeneous network architecture introduces some transmitting nodes with smaller transmit power relative to existing cell base stations, including picocells, femtocells, and relays for signal relay.
  • the homogeneous network mainly refers to a configuration scenario in which only a macro base station (eNB, Evoluted Node Base station) and a user (UE, User Equipment) are in the network;
  • the heterogeneous network mainly refers to a low power node (LPN) placed in the macro cell.
  • Configuration scenario for Low Power Node includes line width RH, Remote radio head, for coverage in hotspots ⁇ 3 ⁇ 41!
  • the almost all-empty subframe refers to a subframe in which only a common reference signal (CRS, Common Reference Signal) is transmitted on the ABS subframe, and no other signal is transmitted, that is, a cell (aggressor cell) that generates strong interference.
  • a plurality of downlink subframes are configured as ABSs, and a cell edge user (CEU, Cell Edge User) in the victim cell is transmitted only when the subframe corresponding to the aggressor cell is an ABS subframe. .
  • the CEU in the victim cell is subject to strong inter-cell interference, and the CEU is also called a victim UE.
  • ABS subframe In the 67th meeting of 3GPP RANI, the definition of ABS subframe was further enriched, and ABS (Reduced A ower ABS) with reduced power was determined as an effective means to reduce inter-cell interference. Reduced power ABS is on almost full null subframe. The signal is transmitted at low power, and the CRS transmission power is unchanged. The original ABS subframe is called Zero power ABS.
  • the Reduced power ABS not only reduces the interference problem to the victim UE, but also effectively improves the overall performance of the aggressor cell, thereby improving the topology load capacity of the entire network.
  • the problem of interference between low-power nodes is increasingly prominent due to the increase in the number of low-power nodes, and the serious interference caused by the adjacent low-power nodes to the downlink data reception of the UE affects the downlink data of the user. Reliable reception.
  • the existing inter-base station interference coordination scheme such as the elCIC of Rel-10, is still used, it only coordinates the interference problem between the Macro eNB and the Pico eNB, and does not solve the interference problem between the Pico eNBs, that is, adopts the prior art. It can only solve the interference problem between adjacent communication nodes of a certain type, and is not applicable to the interference problem between all types of adjacent communication nodes. If resources can be carried in the state carried by signaling between adjacent communication nodes. Scheduling coordination can effectively solve the interference problem.
  • there is currently no such effective solution so it is necessary to introduce a new interference coordination scheme. Summary of the invention
  • the main purpose of the embodiments of the present invention is to provide a system and method for interference coordination between communication nodes, which can solve interference problems between adjacent communication nodes, such as various types of base stations, in a densely deployed network, and solve adjacent communication nodes.
  • the interference caused by the interference caused by the user ensures the reliable reception of the downlink data of the user.
  • a system for interference coordination between communication nodes comprising: a first type of wireless transceiver, and a second type of wireless transceiver;
  • the first type of radio transceiver is configured to send the first type of signaling to the second type of radio transceiver to report status information, and perform data transmission and/or measurement according to the second type of signaling; And the device is configured to perform resource allocation according to the first type of signaling, and send the second type of signaling to the first type of wireless transceiver to perform resource allocation indication.
  • the first type of radio transceiver is further configured to carry according to the second type of signaling.
  • the second type of radio transceiver is further configured to perform resource allocation according to status information carried by the first type of signaling, to obtain a resource allocation indication.
  • the first type of radio transceiver is a small base station, and the second type of radio transceiver is a macro base station; and/or,
  • the first type of radio transceiver is a slave base station having a master-slave relationship with a second type of radio transceiver
  • the second type of radio transceiver is a master base station having a master-slave relationship with the first type of radio transceiver
  • the first type of radio transceiver is a base station having an equal relationship with a second type of radio transceiver
  • the second type of radio transceiver is a base station having an equal relationship with the first type of radio transceiver.
  • the master-slave relationship is specifically a relationship of allocating resources/reporting state information.
  • the slave base station is specifically a base station that reports status information; the master base station is specifically a base station allocated by resources.
  • the first type of radio transceiver has a designated transceiving relationship with the second type of radio transceiver.
  • the second type of radio transceiver is further configured to determine a resource allocation manner according to the first type signaling sent by the one or more first type radio transceivers, and determine the second type signaling.
  • the resource allocation method informs one or more first type of wireless transceivers.
  • the first type of radio transceiver is further configured to perform data transmission and/or measurement according to the received second signaling sent by the second type of radio transceiver, and notify the terminal to perform measurement.
  • the measurement is: a radio link listening RLM, a radio resource management RM, a reference signal receiving power RSRP, a reference signal receiving quality RSRQ, a received signal strength indicator RSSI, At least one of interference measurement, channel state measurement; the channel state measurement comprising measurements based on a reference signal and/or a synchronization signal.
  • the system further includes a grouping unit configured to group the wireless transceivers in the network topology.
  • the radio transceiver in a packet comprises a first type of radio transceiver and/or a second type of radio transceiver.
  • the grouping unit is further configured to perform grouping according to a geographic location of the wireless transceiver.
  • the grouping unit is further configured to perform resource allocation cooperation according to the wireless transceiver in the grouping unit.
  • the grouping unit is further configured to perform specific resource allocation cooperation between the grouping units through the second type of wireless transceiver base station.
  • a method for interference coordination between communication nodes comprising:
  • the first type of radio transceiver transmits the first type of signaling to the second type of radio transceiver to report status information, and performs data transmission and/or measurement according to the second type of signaling;
  • the second type of radio transceiver performs resource allocation according to the first type of signaling, and sends the second type of signaling to the first type of radio transceiver for resource allocation indication.
  • the method further includes: the second type of radio transceiver performs the resource allocation according to the state information carried by the first type of signaling, and obtains a resource allocation indication, where the first type of radio transceiver performs resource allocation according to the second type signaling Instructing to perform the data transmission and/or measurement.
  • the second type of signaling is specifically resource indication signaling.
  • the resource indication signaling includes a time domain resource that can be scheduled for use by the first type of transceiver device, and/or a frequency domain resource indication, and/or a resource allocation duration indication.
  • the second type of signaling is specifically delivered by using a signaling interaction interface between the first type of radio transceiver and the second type of radio transceiver.
  • the signaling interaction interface is any one of an X2 interface, a radio resource control RRC signaling interface, and an operation management and maintenance OAM interface.
  • the transmitting through the signaling interaction interface specifically includes: transmitting, by using an existing non-UE related message on the signaling interaction interface, and/or adding a new non-UE related message.
  • the existing non-UE related message specifically includes: an almost full null subframe information ABS Information message, and/or a related narrowband transmission power, a negative Narrowband Tx Power, and the newly added non-UE related message specifically includes: an ABS or a switch A status indication message, and/or a bitmap bitmap message indicating HARQ process occupancy information, and/or a bitmap message indicating a frequency domain physical resource block PRB allocation.
  • the first type of signaling is specifically status report signaling.
  • the status report signaling is specifically: an ECGI, a resource request message, a request resource size, a load indication, a service priority indication, a service service or channel quality indicator, a service activity prediction indication, a resource occupation status, and a resource release message. At least one of them.
  • the first type of signaling is specifically transmitted through a signaling interaction interface between the first type of radio transceiver and the second type of radio transceiver.
  • the first type of signaling is sent by the first type of radio transceiver to the second type of radio transceiver to report status information
  • the second type of signaling is used for data transmission and/or measurement.
  • resource allocation according to the first type of signaling, and transmitting the second type of signaling to the first type of wireless transceiver to perform resource allocation indication is performed between neighboring communication nodes through the state carried by the signaling, which can effectively solve the interference problem, that is, the interference problem to the user caused by the interference between adjacent communication nodes.
  • FIG. 1 is a schematic diagram of deployment evolution of a network topology structure in the prior art
  • 2 is a flowchart of an implementation principle of a signaling interaction method between communication nodes according to an embodiment of the present invention
  • 3 is a flowchart of periodic signaling interaction between communication nodes according to an embodiment of the present invention
  • 5 is a flowchart of signaling interaction between peer base stations according to an embodiment of the present invention.
  • FIG. 6 is a packet topology diagram of a wireless transceiver device according to an embodiment of the present invention.
  • FIG. 7 is a flow chart of signaling interaction for measurement between communication nodes according to an embodiment of the present invention. detailed description
  • the first type of radio transceiver sends the first type of signaling to the second type of radio transceiver to report the status information, and performs data transmission and/or measurement according to the second type of signaling.
  • the device performs resource allocation according to the first type of signaling, and sends the second type of signaling to the first type of radio transceiver to perform resource allocation indication.
  • a system for inter-communication interference coordination comprising: a first type of radio transceiver, a second type of radio transceiver; wherein the first type of radio transceiver is configured to send the first type of signaling to the second type a wireless transceiver, and reporting status information by using the first type of signaling; the first type of wireless transceiver receiving the second type of signaling returned by the second type of wireless transceiver, and allocating resource allocation according to the second type of wireless transceiver Instruct to perform data transmission and/or measurement.
  • the second type of radio transceiver is configured to receive the first type of signaling sent by the first type of radio transceiver, perform resource allocation according to the reported status information, and return the resource allocation indication to the first type of radio transmission and reception by using the second type of signaling. Device.
  • the first type of radio transceiver is a small base station
  • the second type of radio transceiver is a macro base station
  • the first type of radio transceiver has a master and slave with the second type of radio transceiver a slave base station
  • the second type of radio transceiver is a master base station having a master-slave relationship with the first type of radio transceiver
  • the first type of radio transceiver has a second type of radio transceiver
  • the second type of radio transceiver is a base station having an equal relationship with the first type of radio transceiver.
  • the small base station is one of Micro, Pico, Femto, RH, Relay, etc. Or a variety;
  • the master-slave relationship is a relationship of allocating resources/reporting state information
  • the slave base station is a base station that reports status information
  • the primary base station is a base station allocated for resources
  • the first type of radio transceiver has a designated transceiving relationship with the second type of radio transceiver;
  • the first type of radio transceiver performs data transmission and/or measurement according to the received second type signaling, and further notifies the terminal to perform measurement;
  • the measurements are: radio link monitoring (RLM), radio resource management (RM), reference signal received power (RSRP), reference signal received quality (RSRQ), received signal strength indication (RSSI), interference measurement, At least one of channel state measurements;
  • RLM radio link monitoring
  • RM radio resource management
  • RSRP reference signal received power
  • RSSI received signal strength indication
  • interference measurement At least one of channel state measurements;
  • the channel state measurement comprises a measurement based on a reference signal and/or a synchronization signal; preferably, the second type of wireless transceiver device transmits the first type according to the received one or more first type wireless transceivers Signaling determines a resource allocation scheme and signaling one or more first type of radio transceivers;
  • the second type of radio transceiver proposes that the first type of radio transceiver uses the corresponding resource indicated by the second type of signaling; that is, the second type of radio transceiver sends the second type of signaling to indicate the allocation of the resource.
  • the first type of radio transceiver may refer to the use of the resource, and does not have to be used in accordance with the indicated resource. The subsequent embodiments are listed and will not be described again.
  • the second type of radio transceiver may be the first type of radio transceiver, and the first type of radio transceiver may be the second type of radio transceiver;
  • the radio transceivers in the grouping unit may perform resource allocation cooperation; preferably, the grouping units may perform further resource allocation cooperation by using the second type radio transceiver base station;
  • the second type of signaling is resource indication signaling;
  • the resource indication signaling includes a time domain resource and a frequency domain resource indication that are schedulable for use by the first type of transceiver, and/or a resource allocation duration indication;
  • the second type of signaling is transmitted through a signaling interaction interface between the wireless transceivers;
  • the signaling interaction interface is one of the following: an X2 interface, a radio resource control (RRC) signaling interface, an operation and maintenance management (OAM) interface;
  • RRC radio resource control
  • OAM operation and maintenance management
  • the transmitting through the signaling interaction interface includes transmitting the existing non-UE related message on the signaling interaction interface, and/or adding the new non-UE related message;
  • the existing non-UE related message on the signaling interaction interface is an almost all empty subframe information (ABS Information) message in the signaling interaction interface, and/or related narrowband transmission power in the signaling interaction interface.
  • ABS Information e.gative Narrowband Tx Power
  • the newly added non-UE related message on the signaling interaction interface is an ABS or switch status indication message, and/or a bitmap indicating the hybrid automatic request retransmission (HARQ) process occupation information (bitmap) message, and/or, a bitmap message assigned to the frequency domain physical resource block (PRB);
  • HARQ hybrid automatic request retransmission
  • PRB frequency domain physical resource block
  • ABS Information message is an almost full null subframe pattern (ABS pattern) used by the second type of radio transceiver;
  • the first type of radio transceiver receives the ABS Information message sent by the second type of radio transceiver to preferentially schedule the victim UE when the second type of radio transceiver is configured as an ABS subframe;
  • the ABS or switch status indication message suggests or indicates an ABS pattern or a switch pattern used by the first type of radio transceiver
  • the first type of radio transceiver receives the second type of radio transceiver
  • the ABS indication message may be a switch status indication message, where the ABS is a non-empty subframe corresponding to the open a state in which the ABS is an empty subframe corresponding to the off state; preferably, the first type of signaling is status report signaling;
  • the status report signaling may be at least one of: an evolved cell global identifier (ECGI), a resource request message, a size of a request resource, a load indication, a service priority indication, a service service or a channel quality indicator, a service Active prediction indication, resource occupancy, resource release message, etc.
  • ECGI evolved cell global identifier
  • the status report signaling may be a joint coding form of at least one of the following: an ECGL resource request message, a size of a request resource, a load indication, a service priority indication, a service service or a channel quality indicator, and a service activity prediction indication. , resource occupancy, resource release messages, etc.
  • the first type of signaling is transmitted through a signaling interaction interface between the wireless transceivers;
  • the signaling interaction interface is one of the following: an X2 interface, an RRC signaling interface, and an OAM interface.
  • a method for coordinating interference between communication nodes mainly includes the following contents: 1.
  • the first type of radio transceiver sends a first type of signaling to a second type of radio transceiver, and uses the first type of signaling to report the above status information.
  • the second type of radio transceiver receives the first type of signaling sent by the first type of radio transceiver for resource allocation. Specifically, the status information reported in the first type of signaling is used for resource allocation.
  • the second type of radio transceiver transmits a second type of signaling to the first type of radio transceiver and uses the second type of signaling for the resource allocation indication.
  • the first type of radio transceiver receives the second type of signaling sent by the second type of radio transceiver, and performs data transmission and/or measurement according to the second type of signaling. Specifically, the resource allocation indication carried in the second type signaling is used for data transmission and/or measurement.
  • a certain degree of solution is achieved through coordination between communication nodes.
  • the interference problem of the adjacent communication nodes to the users under the densely deployed network is ensured, and the reliable reception of the downlink data of the users is ensured.
  • the communication node includes a first wireless transceiver device and a second wireless transceiver device. As shown in FIG. 2, the process includes the following steps:
  • Step 101 The first type of radio transceiver sends the first type of signaling to the second type of wireless transceiver, and uses the first type of signaling to report the status information.
  • the second type of radio transceiver receives the first type of signaling sent by the first type of radio transceiver, and uses the status information according to the reported status for resource allocation.
  • the representation of the first type of signaling may have many possibilities, and is not limited to the examples in the embodiment.
  • Step 102 The second type of radio transceiver sends a second type of signaling to the first type of wireless transceiver, and the second type of signaling is used for the resource allocation indication.
  • the first type of radio transceiver receives the second type of signaling sent by the second type of radio transceiver, and performs data transmission and/or measurement according to the allocated resource allocation indication.
  • the signaling representation can have many possibilities, and is not limited to the examples in the embodiment.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the signaling indicates whether to apply for the resource, 1 indicates the application, and 0 indicates no application. Send the Cell ID at the same time.
  • the Pico eNB0 allocates resources for the Pico eNB1 according to the received signaling bl, allocates resources for the Pico eNB2, and allocates resources for the Pico eNB0;
  • the Pico eNB1 After receiving the signaling al, the Pico eNB1 starts to switch to the on state, starts the service user to perform data transmission, and after receiving the signaling al, the Pico eNB2 switches to the off state.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • blb2 represents the service priority
  • 00 represents the low priority
  • 01 represents the moderate priority
  • 10 represents the high priority
  • b3b4 represents the load condition
  • 00 represents the low load
  • 01 represents the moderate load
  • 10 represents the high load
  • 11 indicates overload and sends the Cell ID at the same time.
  • the Macro eNB comprehensively considers the current cell according to the received signaling blb2b3b4. For the service priority and load situation, resource allocation is performed for Relay eNB 1, Relay eNB 2, Relay eNB 3, and Relay eNB 4.
  • the relay eNB 1 receives the signaling ala2a3a4a5a6a7a8, all the subframes corresponding to the HARQ process 1/2/3/4/5/6/7/8 are configured as ABS subframes, and the Relay eNB2 receives the signaling a1a3a4a5a6a7a8.
  • the subframe corresponding to the HARQ process 2/3/4/5/6/7/8 is configured as an ABS subframe
  • the relay eNB3 receives the signaling ala2a3a4a5a6a7a8, and the subframe corresponding to the HARQ process 1/6/7/8
  • the relay eNB4 receives the signaling ala2a3a4a5a6a7a8, and configures the subframe corresponding to the HARQ process 1/2/3/4/5/ as an ABS subframe.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • FIG. 3 is a flowchart of a signaling interaction method between communication nodes according to an embodiment of the present invention, and the first type of wireless transceiver device is specifically Pico.
  • the process of this embodiment includes the following steps:
  • blb2 represents the service priority
  • 00 represents the low priority
  • 01 represents the moderate priority
  • 10 represents the high priority
  • b3b4 represents the load condition
  • 00 represents the low load
  • 01 represents the moderate load
  • 10 represents the high load
  • 11 indicates overload
  • b5 indicates resource release identifier
  • 1 indicates release of resources
  • 0 indicates no resources are released
  • the Cell ID is sent at the same time.
  • the Macro eNB Based on the received signaling blb2b3b4b5, the Macro eNB comprehensively considers the service priority, load status, and resource release identifier in the current cell, and allocates resources for Pico eNB 1, Pico eNB2, Pico eNB3, and Pico eNB4.
  • the signaling indicates whether an ABS is configured in a subframe corresponding to the HARQ process, where 1 indicates that the ABS subframe is configured, and 0 indicates that the ABS subframe is not configured.
  • the Pico eNB1 receives the signaling ala2a3a4a5a6a7a8, all the subframes corresponding to the HARQ process 2/3/4/5/6/7/8 are configured as ABS subframes, and after receiving the signaling ala2a3a4a5a6a7a8, the Pico eNB2 is in the HARQ process.
  • the subframe corresponding to 1/4/5/6/7/8 is configured as an ABS subframe
  • the Pico eNB3 receives the signaling ala2a3a4a5a6a7a8
  • the subframe corresponding to the HARQ process 1/2/3/6/7/8 is configured as In the ABS subframe
  • the Pico eNB4 configures the subframe corresponding to the HARQ process 1/2/3/4/5 as an ABS subframe.
  • blb2 represents the service priority
  • 00 represents the low priority
  • 10 means high priority
  • b3b4 means load
  • 00 means low load
  • 01 means moderate load
  • 01 means high load
  • 10 means high load
  • 11 means overload
  • b5 means resource release indicator
  • 1 means release of resources
  • 0 no release Resource
  • the Macro eNB performs resource allocation for the Pico eNB1, the Pico eNB2, the Pico eNB3, and the Pico eNB4 according to the received signaling blb2b3b4b5, considering the service priority, the load situation, and the resource release identifier in the current cell.
  • the Pico eNB1 receives the signaling ala2a3a4a5a6a7a8, all the subframes corresponding to the HARQ process 1/2/3/4/5/6/7/8 are configured as ABS subframes, and after receiving the signaling ala2a3a4a5a6a7a8, the Pico eNB1 receives the signaling
  • the subframe corresponding to the HARQ process 4/5/6/7/8 is configured as an ABS subframe
  • the Pico eNB3 corresponds to the HARQ process 1/2/3/4/5/6/7/8.
  • the subframe is configured as an ABS subframe
  • the Pico eNB4 receives the signaling ala2a3a4a5a6a7a8, the subframe corresponding to the HARQ process 1/2/3 is configured as an ABS subframe.
  • Embodiment 4 is a diagrammatic representation of Embodiment 4:
  • FIG. 4 is a flowchart of a method for signaling interaction between communication nodes according to an embodiment of the present invention
  • the first type of radio transceiver device 1 is specifically a Pico eNB1.
  • the first type of radio transceiver 2 is specifically Pico eNB3, and / or Pico eNB4
  • the second type of radio transceiver 1 is specifically Macro eNB1
  • the second type of radio transceiver 2 is specifically Macro eNB2
  • blb2 represents the service priority
  • 00 represents the low priority
  • 01 represents the moderate priority
  • 10 represents the high priority
  • b3b4 represents the load condition
  • 00 represents the low load
  • 01 represents the moderate load
  • 10 represents the high load
  • 11 indicates overload and sends the Cell ID at the same time
  • the Macro eNB1 performs resource allocation for the Pico eNB1 and the Pico eNB2 in combination with the signaling of the Macro eNB2, and the Macro eNB2 performs resource allocation for the Pico eNB3 and the Pico eNB4 in conjunction with the signaling of the Macro eNB1.
  • the Pico eNB1 receives the signaling ala2a3a4a5a6a7a8 transmitted by the Marco eNB1
  • all the subframes corresponding to the HARQ process 1/2/3/4/5/6/7/8 are configured as ABS subframes
  • the Pico eNB2 receives the signaling.
  • the subframe corresponding to the HARQ process 3/4/5/6/7/8 is configured as an ABS subframe
  • the Pico eNB3 is in the HARQ process 1/2/6/7.
  • the subframe corresponding to /8 is configured as an ABS subframe, and after the Pico eNB4 receives the signaling ala2a3a4a5a6a7a8, the subframe corresponding to the HARQ process 1/2/3/4/5/ is configured as ABS subframe.
  • Embodiment 5 is a diagrammatic representation of Embodiment 5:
  • the first type of radio transceiver is specifically Femto eNB1, and/or Femto eNB2, and second.
  • the process of this embodiment includes the following steps:
  • the Femto eNB0 allocates frequency domain resources to Femto eNB1 and Femto eNB2 according to the received signaling bl.
  • the signaling indicates the frequency domain PRB allocation indication, where 1 indicates that the PRB is allocated, and 0 indicates no Allocating the chaos
  • the Femto eNB1 schedules users to perform data transmission on the 1/2/3th PRB in the frequency domain, and does not schedule users or low-power scheduling on the 4/5/6th PRB in the frequency domain.
  • the Femto eNB2 schedules users to transmit data on the 4/5/6th PRB in the frequency domain, and does not schedule users or low-power scheduling on the 1/2/3th PRB in the frequency domain. user.
  • Example 6 In the embodiment of the present invention, a method for time domain interference coordination between communication nodes is provided, and FIG. 5 is a flowchart of a signaling interaction method between communication nodes according to an embodiment of the present invention, and the first type of wireless transceiver device is specifically Pico.
  • the process of this embodiment includes the following steps:
  • blb2 represents the service priority
  • 00 represents the low priority
  • 01 represents the moderate priority
  • 10 represents the high priority
  • b3b4 represents the load condition
  • 00 represents the low load
  • 01 represents the moderate load
  • 10 represents the high load
  • 11 indicates overload and sends the Cell ID at the same time.
  • the Pico eNB1 performs resource allocation after receiving the signaling blb2b3b4, and the Pico eNB2 performs resource allocation after receiving the signaling blb2b3b4, and determines which eNB uses the HARQ process first according to the priority of the service;
  • the foregoing signaling indicates whether an ABS is configured on a subframe corresponding to the HARQ process, where 1 indicates that an ABS subframe is configured, and 0 indicates that an ABS subframe is not configured;
  • the Pico eNB1 receives the signaling ala2a3a4a5a6a7a8
  • the subframe corresponding to the HARQ process 1/2/3/4/5 is configured as an ABS subframe
  • the Pico eNB2 receives the signaling ala2a3a4a5a6a7a8 and corresponds to the HARQ process 6/7/8.
  • the subframe is configured as an ABS subframe.
  • the first type of radio transceiver is specifically Pico eNB1, and/or Pico eNB2, and second.
  • the type radio transceiver is specifically a Macro eNB, this implementation
  • the process of the example includes the following steps:
  • blb2 represents the service priority
  • 00 represents the low priority
  • 01 represents the moderate priority
  • 10 represents the high priority
  • b3b4 represents the load condition
  • 00 represents the low load
  • 01 represents the moderate load
  • 10 represents the high load
  • 11 indicates overload
  • b5b6 indicates service service or channel quality
  • 00 indicates low service or channel quality level
  • 01 indicates moderate service or channel quality level
  • 10 indicates high service or channel quality level
  • the Macro eNB performs resource allocation for the Pico eNB1 and the Pico eNB2 according to the received signaling blb2b3b4b5b6, considering the service priority, the load condition, and the service service or channel quality level in the current cell.
  • the foregoing signaling indicates whether an ABS is configured on a subframe corresponding to the HARQ process, where 1 indicates that an ABS subframe is configured, and 0 indicates that an ABS subframe is not configured.
  • the Pico eNB1 configures the subframe corresponding to the HARQ process 6/7/8 as an ABS subframe in combination with its own service priority, load condition, and service service or channel quality level.
  • the Pico eNB2 configures the subframe corresponding to the HARQ process 1/2 as an ABS subframe in combination with its own service priority, load condition, and service service or channel quality level.
  • Example 8 The system for inter-communication interference coordination in the embodiment of the present invention further includes a grouping unit configured to group the radio transceivers in the network topology, wherein the radio transceivers in one packet comprise the first type of radio transceivers and The second type of radio transceiver, specifically, the topology diagram of the radio transceiver group in this embodiment is grouped according to the geographic location of the Pico eNB, and the topology of the packet is as shown in FIG. 6.
  • the process of this embodiment includes the following steps:
  • the signaling indicates whether to apply for a resource, 1 indicates an application, and 0 indicates no application. , send the Cell ID at the same time.
  • the Pico eNB0 allocates resources for the Pico eNB 1 according to the received signaling b l , allocates resources for the Pico eNB 2 , and allocates resources for the Pico eNB O ;
  • the signaling indicates the HARQ process allocation indication, where 1 indicates that the HARQ process is allocated, and 0 indicates The HARQ process is not assigned.
  • the Pico eNB1 After receiving the signaling a1a3a4a5a6a7a8, the Pico eNB1 performs RM/RLM measurement on the subframe corresponding to the HARQ process 1/2/3, and the Pico eNB2 receives the signaling.
  • the UE1 After receiving the blb2a3b4b5b6b7b8, the UE1 performs CSI measurement on the subframe corresponding to the HARQ process 1/2/3, and reports CSI1 to Pico eNB1 on the subframe corresponding to the HARQ process 4/5/6/7/8.
  • CSI is measured and reported to CSI0 to Pico eNB1; after receiving blb2a3b4b5b6b7b8, UE2 performs CSI measurement on the subframe corresponding to 4/5 of the HARQ process, and measures and reports CSI0 to Pico eNB2; after UE2 and UE3 receive blb2a3b4b5b6b7b8, Perform CSI measurement on the subframe corresponding to the HARQ process 7/8, and report CSI1 to Pico to Pico eNBOo.
  • the interference problem between adjacent communication nodes can be alleviated to some extent, and accurate measurement information is obtained.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the first type of signaling is sent by the first type of radio transceiver to the second type of radio transceiver to report status information, and the data transmission and/or measurement is performed according to the second type of signaling.
  • the second type of radio transceiver performs resource allocation according to the first type of signaling, and sends the second type of signaling to the first type of radio transceiver for resource allocation indication.
  • resource coordination can be performed in a state carried by signaling between adjacent communication nodes, the interference problem can be effectively solved.

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Abstract

本发明公开了一种通信节点间干扰协调的系统及方法,该系统的第一类型无线收发装置配置为发送第一类型信令至第二类型无线收发装置来上报状态信息,根据第二类型信令进行数据传输和/或测量;第二类型无线收发装置配置为根据所述第一类型信令来进行资源分配,发送第二类型信令至第一类型无线收发装置来进行资源分配指示。该方法包括:发送第一类型信令至第二类型无线收发装置来上报状态信息,根据第二类型信令进行数据传输和/或测量;发送第二类型信令至第一类型无线收发装置来进行资源分配。采用本发明实施例,可以解决密集部署网络下诸如各类基站等相邻通信节点间的干扰问题,解决相邻通信节点间的干扰带来的对用户的干扰问题,确保用户下行数据的可靠接收。

Description

一种通信节点间干扰协调的系统及方法 技术领域
本发明涉及通信领域, 尤其涉及一种通信节点间干扰协调的系统及方 法。 背景技术
数据统计显示出: 未来 80% ~ 90%的系统吞吐量将发生在室内和热点 场景。 然而, 现有的蜂窝网技术具有 "重室外, 轻室内", "重蜂窝组网, 轻孤立热点", "重移动切换,轻固定游牧" 等特点。 高级长期演进系统 ( LTE- Advance, Long-Term Evolution advance )的工作重点之一就在于室内 和热点场景进行优化。 异构网络( heterogeneous networks )作为一种显著提 升系统吞吐量和提高网络整体效率的技术, 能很好地满足 LTE-Advance提 出的要求。 异构网络结构引进一些相对于现有的小区基站发射功率更小的 发射节点, 包括微微蜂窝 ( Picocell ), 毫微微蜂窝 ( Femtocells ) 以及用于 信号中继的中继站( Relay )。这些节点的引入可以为室内和热点场景的覆盖 提供很好的保障; 这些节点的发射功率小, 便于灵活地部署网络; 同时这 些节点的覆盖范围小, 可以更加方便地利用 LTE-Advance潜在的高频段频 谱。 但是新的节点的弓 I入改变了原来网络的拓朴结构,使这种网络结构的小 区间干扰成为一个新的挑战。
在异构网中小区间的干扰一般比同构网 ( Homogeneous Network )要严 重, 因此需要小区间的干扰协调技术, 从而减低小区间的干扰。 这里, 同 构网主要是指网络中只有宏基站(eNB, Evoluted Node Base station )和用 户 (UE, User Equipment )的配置场景; 异构网主要是指宏小区中摆放低功 率节点 (LPN, Low Power Node ) 的配置场景。 所谓低功率节点包括线宽 频头端设备 ( R H, Remote radio head ), 用于热点地区的覆盖的^ ¾1!基站 ( Pico eNB ), 家庭基站( HeNB, Home eNB ),也可称为 femto, 中继( Relay node )等。
在第三代合作伙伴计划( 3GPP, 3rd Generation Partnership Project ) LTE RANI 62次会议中,确定了使用时域方式即应用几乎全空子帧(ABS, Almost Blank Subframe )的方式作为 Macro-Pico场景解决异构网的小区间干扰问题 的主要手段。
所述几乎全空子帧,指在这个 ABS子帧上只发送公共参考信号( CRS, Common Reference Signal )信号, 不发送其他任何信号的子帧, 即为: 在产 生强干扰的小区( aggressor cell )中配置几个下行子帧为 ABS, 对应受到强 干扰的小区 ( victim cell ) 中的小区边缘用户 ( CEU, Cell Edge User ) 只在 对应 aggressor cell的子帧为 ABS子帧时发射控制信道和数据。 所述 victim cell中的 CEU会受到很强的小区间干扰, CEU也称为 victim UE。
3GPP RANI 67次会议中, 进一步丰富了 ABS子帧的定义, 确定了将 降低功率的 ABS ( Reduced ower ABS )作为一种有效的降低小区间干扰的 手段, Reduced power ABS是在几乎全空子帧上以低功率发送信号, CRS发 射功率不变, 将原有的 ABS子帧被称之为 Zero power ABS。 采用上述新的 ABS子帧的定义,通过 Reduced power ABS既降低了对 victim UE的干扰问 题, 同时也有效提高了 aggressor cell的整体性能表现, 从而提高了整个网 络的拓朴负载能力。
随着 LTE-Advanced系统继续深入发展,协作传输、中继等技术的使用、 远端射频单元(RRU, Remote Radio Unit ) 的引入、 集中式无线接入网络 ( C-RAN, Centralized Radio Access Network )新型架构的采用进一步扩展 了组网模式, 使得多点协作技术得以进一步发展, 可以促使在宏小区 ( Macrocell )、 微小区 (Microcell )、 微微小区 ( Picocell )等多层网络之间 的混合组网, 形成密集部署网络。 如图 1 所示为现有技术中网络拓朴结构 的部署演变情况示意图, 图 1中 Rel-12及以上协议所支持的网络部署情况 为密集部署网络。 在密集部署网络情况下, 由于低功率节点数目的增加会 导致低功率节点间的干扰问题日益凸显,而且相邻低功率节点对 UE下行数 据接收所产生的严重干扰问题会影响到用户下行数据的可靠接收。 如果仍 然采用现有的基站间干扰协调方案,例如 Rel-10的 elCIC,它只是协调 Macro eNB与 Pico eNB间的干扰问题, 并不能解决 Pico eNB间的干扰问题,也就 是说, 采用现有技术, 只能解决针对某一种指定类型相邻通信节点间的干 扰问题, 并不适用于所有类型相邻通信节点间的干扰问题, 如果能在相邻 通信节点间通过信令携带的状态进行资源调度协调, 能有效解决干扰问题。 然而, 针对上述问题, 目前尚未存在这样有效的解决方案, 因此需要引入 新的干扰协调方案。 发明内容
有鉴于此, 本发明实施例的主要目的在于提供一种通信节点间干扰协 调的系统及方法, 可以解决密集部署网络下诸如各类基站等相邻通信节点 间的干扰问题, 解决相邻通信节点间的干扰带来的对用户的干扰问题, 确 保用户下行数据的可靠接收。
为达到上述目的, 本发明实施例的技术方案是这样实现的:
一种通信节点间干扰协调的系统, 该系统包括: 第一类型无线收发装 置、 第二类型无线收发装置; 其中,
所述第一类型无线收发装置, 配置为发送第一类型信令至第二类型无 线收发装置来上报状态信息 , 根据第二类型信令进行数据传输和 /或测量; 所述第二类型无线收发装置, 配置为根据所述第一类型信令来进行资 源分配, 发送第二类型信令至第一类型无线收发装置来进行资源分配指示。
其中, 所述第一类型无线收发装置, 还配置为根据第二类型信令携带 的资源分配指示进行数据传输和 /或测量;
所述第二类型无线收发装置, 还配置为根据第一类型信令携带的状态 信息进行资源分配, 得到资源分配指示。
其中, 所述第一类型无线收发装置为小基站, 所述第二类型无线收发 装置为宏基站; 和 /或,
所述第一类型无线收发装置为与第二类型无线收发装置具有主从关系 的从基站, 所述第二类型无线收发装置为与第一类型无线收发装置具有主 从关系的主基站; 和 /或,
所述第一类型无线收发装置为与第二类型无线收发装置具有平等关系 的基站, 所述第二类型无线收发装置为与第一类型无线收发装置具有平等 关系的基站。
其中, 所述主从关系具体为分配资源 /上报状态信息的关系。
其中, 所述从基站具体为上报状态信息的基站; 所述主基站具体为资 源分配的基站。
其中, 所述第一类型无线收发装置与第二类型无线收发装置之间具有 指定的收发关系。
其中, 所述第二类型无线收发装置, 还配置为根据接收到的一个或多 个第一类型无线收发装置发送的第一类型信令确定资源分配方式, 并采用 第二类型信令将确定的资源分配方式告知一个或多个第一类型无线收发装 置。
其中, 所述第一类型无线收发装置, 还配置为根据接收到的第二类型 无线收发装置发送的第二信令进行数据传输和 /或测量, 并通知终端进行测 量。
其中, 所述测量为: 无线链路监听 RLM、 无线资源管理 R M、 参考信 号接收功率 RSRP、 参考信号接收质量 RSRQ、 接收信号强度指示 RSSI、 干扰测量、 信道状态测量中的至少一种; 所述信道状态测量包括基于参考 信号和 /或同步信号的测量。
其中, 该系统还包括分组单元, 配置为将网络拓朴结构中的无线收发 装置进行分组。
其中, 一个分组中的无线收发装置包括第一类型无线收发装置和 /或第 二类型无线收发装置。
其中, 所述分组单元, 还配置为具体根据无线收发装置的地理位置进 行分组。
其中, 所述分组单元, 还配置为根据分组单元内的无线收发装置进行 资源分配协作。
其中, 所述分组单元, 还配置为在分组单元之间通过第二类型无线收 发基站进行具体的资源分配协作。
一种通信节点间干扰协调的方法, 该方法包括:
第一类型无线收发装置发送第一类型信令至第二类型无线收发装置来 上报状态信息 , 根据第二类型信令进行数据传输和 /或测量;
第二类型无线收发装置根据第一类型信令来进行资源分配, 发送第二 类型信令至第一类型无线收发装置来进行资源分配指示。
其中, 该方法还包括: 第二类型无线收发装置根据第一类型信令携带 的状态信息进行所述资源分配, 得到资源分配指示, 第一类型无线收发装 置根据第二类型信令携带的资源分配指示进行所述数据传输和 /或测量。
其中, 所述第二类型信令具体为资源指示信令。
其中, 所述资源指示信令包括第一类型收发装置能调度使用的时域资 源、 和 /或频域资源指示、 和 /或资源分配时长指示。
其中, 所述第二类型信令具体通过第一类型无线收发装置与第二类型 无线收发装置间的信令交互接口进行传递。 其中, 所述信令交互接口为: X2接口、 无线资源控制 RRC信令接口、 操作管理维护 OAM接口中的任意一种。
其中, 通过所述信令交互接口进行传递具体包括: 通过信令交互接口 上的已有的非 UE相关消息、 和 /或新增的非 UE相关消息进行传递。
其中, 所述已有的非 UE相关消息具体包括: 几乎全空子帧信息 ABS Information消息、 和 /或相关窄带传输功率 Relative Narrowband Tx Power消 所述新增的非 UE相关消息具体包括: ABS或开关状态指示消息、 和 / 或指示 HARQ进程占用信息的位图 bitmap消息、和 /或指示频域物理资源块 PRB分配的 bitmap消息。
其中, 所述第一类型信令具体为状态报告信令。
其中, 所述状态报告信令具体为: ECGI、 资源请求消息、 请求资源的 大小、 负载指示、 业务优先级指示、 业务服务或信道质量指示、 业务活动 性预测指示、 资源占用情况、 资源释放消息中的至少一种。
其中, 所述第一类型信令具体通过第一类型无线收发装置与第二类型 无线收发装置间的信令交互接口进行传递。
本发明实施例是由第一类型无线收发装置发送第一类型信令至第二类 型无线收发装置来上报状态信息 , 根据第二类型信令进行数据传输和 /或测 量; 第二类型无线收发装置根据所述第一类型信令来进行资源分配, 发送 第二类型信令至第一类型无线收发装置来进行资源分配指示。 由于采用本 发明实施例, 在相邻通信节点间通过信令携带的状态进行资源协调, 能有 效解决干扰问题, 即由相邻通信节点间的干扰带来的对用户的干扰问题。 附图说明
图 1为现有技术中网络拓朴结构的部署演变情况示意图;
图 2为本发明实施例通信节点间信令交互方法的实现原理流程图; 图 3为本发明实施例通信节点间周期性信令交互的流程图;
图 4为本发明实施例通信节点间进一步协作的流程图;
图 5为本发明实施例对等基站间信令交互的流程图;
图 6为本发明实施例无线收发装置的分组拓朴图;
图 7为本发明实施例对通信节点间用于测量的信令交互的流程图。 具体实施方式
在本发明实施例中: 第一类型无线收发装置发送第一类型信令至第二 类型无线收发装置来上报状态信息 , 根据第二类型信令进行数据传输和 /或 测量; 第二类型无线收发装置根据所述第一类型信令来进行资源分配, 发 送第二类型信令至第一类型无线收发装置来进行资源分配指示。
一种通信节点间干扰协调的系统, 该系统包括: 第一类型无线收发装 置、 第二类型无线收发装置; 其中, 所述第一类型无线收发装置配置为发 送第一类型信令至第二类型无线收发装置, 并通过所述第一类型信令上报 状态信息; 第一类型无线收发装置收到第二类型无线收发装置返回的第二 类型信令, 根据第二类型无线收发装置分配的资源分配指示来进行数据传 输和 /或测量。 第二类型无线收发装置配置为收到第一类型无线收发装置发 送的第一类型信令, 根据上报的状态信息进行资源分配, 并通过第二类型 信令将资源分配指示返回第一类型无线收发装置。
优选地, 所述第一类型无线收发装置为小基站, 所述第二类型无线收 发装置为宏基站, 和 /或, 所述第一类型无线收发装置为与第二类型无线收 发装置具有主从关系的从基站, 所述第二类型无线收发装置为与第一类型 无线收发装置具有主从关系的主基站, 和 /或, 所述第一类型无线收发装置 为与第二类型无线收发装置具有平等关系的基站, 所述第二类型无线收发 装置为与第一类型无线收发装置具有平等关系的基站。
优选地, 所述小基站为 Micro、 Pico, Femto, R H, Relay等中的一种 或多种;
优选地, 所述主从关系为分配资源 /上报状态信息的关系;
优选地, 所述从基站为上报状态信息的基站, 所述主基站为资源分配 的基站;
优选地, 所述第一类型无线收发装置与第二类型无线收发装置之间具 有指定的收发关系;
优选地, 所述第一类型无线收发装置根据接收到的第二类型信令进行 数据传输和 /或测量, 并进一步通知终端进行测量;
优选地, 所述测量为: 无线链路监听(RLM ), 无线资源管理(R M ), 参考信号接收功率 (RSRP ), 参考信号接收质量(RSRQ ), 接收信号强度 指示 (RSSI ), 干扰测量, 信道状态测量中的至少一种;
优选地, 所述信道状态测量包括基于参考信号和 /或同步信号的测量; 优选地, 所述第二类型无线收发装置根据接收到的一个或多个第一类 型无线收发装置发送的第一类型信令确定资源分配方案, 并信令告知一个 或多个第一类型无线收发装置;
优选地, 所述第二类型无线收发装置建议第一类型无线收发装置使用 第二类型信令指示的相应资源; 也就是说, 第二类型无线收发装置发送第 二类型信令以指示资源的分配, 但是第一类型无线收发装置可以参考使用 该资源, 并不必须完全按照指示的该资源进行使用, 后续实施例中有列举, 不做赘述。
优选地, 所述第二类型无线收发装置可以为所述第一类型无线收发装 置, 所述第一类型无线收发装置可以为所述第二类型无线收发装置;
优选地, 所述分组单元内的无线收发装置可以进行资源分配协作; 优选地, 所述分组单元之间通过第二类型无线收发基站可以进行进一 步的资源分配协作; 优选地, 所述第二类型信令为资源指示信令;
优选地, 所述资源指示信令包括第一类型收发装置可调度使用的时域 资源与或频域资源指示, 和 /或, 资源分配时长指示;
优选地, 所述第二类型信令通过无线收发装置间的信令交互接口进行 传递;
优选地, 所述信令交互接口为下面中的之一: X2接口、 无线资源控制 ( RRC )信令接口、 操作维护管理( OAM )接口;
优选地, 所述通过信令交互接口进行传递包括通过信令交互接口上的 已有的非 UE相关消息, 和 /或, 新增的非 UE相关消息进行传递;
优选地,所述信令交互接口上的已有的非 UE相关消息为信令交互接口 中的几乎全空子帧信息( ABS Information ) 消息, 和 /或, 信令交互接口中 的相关窄带传输功率( Relative Narrowband Tx Power )消息; 所述信令交互 接口上新增的非 UE相关消息为 ABS或开关状态指示消息, 和 /或, 为指示 混合自动请求重传(HARQ )进程占用信息的位图 (bitmap ) 消息, 和 /或, 为指示频域物理资源块( PRB )分配的 bitmap消息;
优选地, 所述的 ABS Information消息为第二类型无线收发装置自身使 用的几乎全空子帧图案 (ABS pattern );
优选地, 所述第一类型无线收发装置接收到第二类型无线收发装置发 送的所述 ABS Information消息,用以在第二类型无线收发装置配置为 ABS 子帧上优先调度 victim UE;
优选地, 所述 ABS或开关状态指示消息为第二类型无线收发装置建议 或指示第一类型无线收发装置使用的 ABS pattern或开关 pattern;
优选地, 所述第一类型无线收发装置接收到第二类型无线收发装置发 所述 ABS指示消息可以为开关状态指示消息, ABS为非空子帧对应为开的 状态, ABS为空子帧对应为关的状态; 优选地, 所述第一类型信令为状态报 告信令;
优选地, 所述状态报告信令可以为以下至少之一: 演进小区全球标识 符(ECGI )、 资源请求消息、请求资源的大小、 负载指示、业务优先级指示、 业务服务或信道质量指示、 业务活动性预测指示、 资源占用情况、 资源释 放消息等;
优选地, 所述状态报告信令可以为以下至少之一的联合编码形式: ECGL 资源请求消息、 请求资源的大小、 负载指示、 业务优先级指示、 业 务服务或信道质量指示、 业务活动性预测指示、 资源占用情况、 资源释放 消息等;
优选地, 所述第一类型信令通过无线收发装置间的信令交互接口进行 传递;
优选地,所述信令交互接口为下面中的之一: X2接口、 RRC信令接口、 OAM接口。
一种通信节点间干扰协调的方法, 该方法主要包括以下内容: 一、 第一类型无线收发装置发送第一类型信令至第二类型无线收发装 置, 并通过该第一类型信令用以上报状态信息。
二、 第二类型无线收发装置接收到第一类型无线收发装置发送的第一 类型信令用以资源分配。 具体的, 是根据第一类型信令中携带的上报的该 状态信息用以资源分配。 第二类型无线收发装置发送第二类型信令至第一 类型无线收发装置, 并通过该第二类型信令用以资源分配指示。
三、 第一类型无线收发装置接收到第二类型无线收发装置发送的第二 类型信令, 根据第二类型信令进行数据传输和 /或测量。 具体的, 是根据第 二类型信令中携带的资源分配指示用以进行数据传输和 /或测量。
综上所述, 采用本发明实施例, 通过通信节点间的协调, 一定程度解 决了密集部署网络下, 相邻通信节点对用户的干扰问题, 保证用户下行数 据的可靠接收。
下面结合附图对技术方案的实施作进一步的详细描述。
以下实施例主要应用在异构网系统, 但同样适用于在同构网系统, 不 做赘述。
图 2是本发明实施例通信节点间信令交互方法的实现原理流程图, 通 信节点包括第一无线收发装置和第二无线收发装置, 如图 2所示, 该流程 包括以下步驟:
步驟 101、第一类型无线收发装置发送第一类型信令至第二类型无线收 发装置, 通过该第一类型信令用以上报状态信息。
这里, 第二类型无线收发装置接收到第一类型无线收发装置发送的第 一类型信令, 根据所上报的该状态信息用以资源分配。
需要指出的是: 该第一类型信令的表示形式可以有多种可能, 不局限 于实施例中的例子。
步驟 102、第二类型无线收发装置发送第二类型信令至第一类型无线收 发装置, 通过该第二类型信令用以资源分配指示。
这里, 第一类型无线收发装置接收到第二类型无线收发装置发送的第 二类型信令, 根据所分配的该资源分配指示用以进行数据传输和 /或测量。
需要指出的是: 该信令表示形式可以有多种可能, 不局限于实施例中 的例子。
实施例一:
在本实施例中,提供了一种通信节点间时域干扰协调的方法,基于图 2 所示的原理流程图, 第一类型无线收发装置具体为 Pico eNBl、 和 /或 Pico eNB2, 第二类型无线收发装置具体为 Pico eNBO的情况下, 本实施例的流 程包括以下步驟: 步驟 201、 Pico eNBl通过 OAM接口发送信令 bl=l至 Pico eNBO, Pico eNB2通过 OAM接口发送信令 bl=0至 Pico eNBO, 上述信令表示是否申请 资源, 1表示申请, 0表示不申请, 同时发送 Cell ID。
这里, Pico eNBO根据接收到的信令 bl , 为 Pico eNBl分配资源, 为 Pico eNB2不分配资源,同时为 Pico eNBO分配资源;
步驟 202、 Pico eNBO通过 OAM接口发送信令 al =1至 Pico eNBl , 通 过 OAM接口发送 al =0至 Pico eNB2 ,上述信令表示 on/off状态指示消息, 其中 1表示开启, 0表示关闭。
这里, Pico eNBl接收到信令 al后, 转换为 on状态, 开始服务用户进 行数据传输, Pico eNB2接收到信令 al后, 转换为 off状态。
采用本发明实施例的上述流程, 可以一定程度上緩解相邻通信节点间 的干 4尤问题。
实施例二:
在本发明实施例中, 提供了一种通信节点间时域干扰协调的方法, 基 于图 2所示的原理流程图, 第一类型无线收发装置具体为 Relay eNBl、 和 / 或 Relay eNB 2 、 和 /或 Relay eNB3 、 和 /或 Relay Relay eNB4 , 第二类型无 线收发装置具体为 Macro eNB的情况下, 本实施例的流程包括以下步驟: 步驟 301、 Relay eNBl通过 RRC接口发送信令 blb2b3b4=0000至 Macro eNB, Relay eNB 2通过 X2接口发送信令 blb2b3b4=0100至 Macro eNB, Relay eNB3通过 X2接口发送信令 blb2b3b4=1001 至 Macro eNB, Relay eNB4通过 X2接口发送信令 blb2b3b4=0111至 Macro eNB。
这里, 上述信令中 blb2表示业务优先级, 00表示低优先级, 01表示 适中优先级, 10表示高优先级, b3b4表示负载情况, 00表示低负载, 01 表示适中负载, 10表示高负载, 11表示超载, 同时发送 Cell ID。
这里, Macro eNB根据接收到的信令 blb2b3b4, 综合考虑当前小区中 的业务优先级和负载情况, 为 Relay eNB 1、 Relay eNB2、 Relay eNB3、 Relay eNB4进行资源分配。
步驟 302、 Macro eNB 通过 X2 接口发送信令 al a2a3a4a5a6a7a8 =11111111至 Relay eNB l , 通过 X2接口发送 al a2a3a4a5a6a7a8 =01111111 至 Relay eNB2 , 通过 X2接口发送 ala2a3a4a5a6a7a8 =1000011 1至 Relay eNB3 , 通过 Χ2接口发送 al a2a3a4a5a6a7a8 =11111000至 Relay eNB4 , 上 述信令表示 HARQ进程对应的子帧上是否配置 ABS ,其中 1表示配置 ABS 子帧, 0表示不配置 ABS子帧。
这里, Relay eNB l接收到信令 ala2a3a4a5a6a7a8后, 在 HARQ进程 1/2/3/4/5/6/7/8对应的子帧全部配置为 ABS子帧, Relay eNB2接收到信令 al a2a3a4a5a6a7a8后, 在 HARQ进程 2/3/4/5/6/7/8对应的子帧配置为 ABS 子帧, Relay eNB3接收到信令 ala2a3a4a5a6a7a8后, 在 HARQ进程 1/6/7/8 对应的子帧配置为 ABS子帧, Relay eNB4接收到信令 ala2a3a4a5a6a7a8后, 在 HARQ进程 1/2/3/4/5/对应的子帧配置为 ABS子帧。
采用本发明实施例的上述流程, 可以一定程度上緩解相邻通信节点间 的干 4尤问题。
实施例三:
在本发明实施例中,提供了一种通信节点间时域干扰协调的方法, 图 3 是本发明实施例的通信节点间信令交互方法的流程图, 且第一类型无线收 发装置具体为 Pico eNB l、 和 /或 Pico eNB2、 和 /或 Pico eNB3、 和 /或 Pico eNB4 , 第二类型无线收发装置具体为 Macro eNB的情况下, 本实施例的流 程包括以下步驟:
步驟 401、 Pico eNB l通过 X2接口发送信令 blb2b3b4b5=00000至 Macro eNB , Pico eNB2通过 X2接口发送信令 b Ib2b3b4b5=01000至 Macro eNB , Pico eNB3通过 X2接口发送信令 blb2b3b4b5=10000至 Macro eNB, Pico eNB4通过 X2接口发送信令 blb2b3b4b5=00110至 Macro eNB。
这里, 上述信令中 blb2表示业务优先级, 00表示低优先级, 01表示 适中优先级, 10表示高优先级, b3b4表示负载情况, 00表示低负载, 01 表示适中负载, 10表示高负载, 11表示超载, b5表示资源释放标识, 1表 示释放资源, 0表示不释放资源, 同时发送 Cell ID。
Macro eNB根据接收到的信令 blb2b3b4b5 , 综合考虑当前小区中的业 务优先级、负载情况和资源释放标识,为 Pico eNB 1 , Pico eNB2、 Pico eNB3、 Pico eNB4进行资源分配。
步 驟 402 、 Macro eNB 通 过 X2 接 口 发 送 信 令 al a2a3 a4a5a6a7a8=01111111 至 Pico eNBl , 通过 X2 接 口 发送 ala2a3a4a5a6a7a8=10011111 至 Pico eNB2 , 通过 X2 接 口 发送 al a2a3a4a5a6a7a8=l 1100111 至 Pico eNB3 , 通过 X2 接 口 发送 ala2a3a4a5a6a7a8 =11111000至 Pico eNB4, 上述信令表示 HARQ进程对应 的子帧上是否配置 ABS, 其中 1表示配置 ABS子帧, 0表示不配置 ABS 子帧。
这里, Pico eNBl 接收到信令 ala2a3a4a5a6a7a8后, 在 HARQ进程 2/3/4/5/6/7/8 对应的子帧全部配置为 ABS 子帧, Pico eNB2接收到信令 ala2a3a4a5a6a7a8后, 在 HARQ进程 1/4/5/6/7/8对应的子帧配置为 ABS子 帧, Pico eNB3接收到信令 ala2a3a4a5a6a7a8后, 在 HARQ进程 1/2/3/6/7/8 对应的子帧配置为 ABS子帧, Pico eNB4接收到信令 ala2a3a4a5a6a7a8后, 在 HARQ进程 1/2/3/4/5对应的子帧配置为 ABS子帧。
步驟 403、 Pico eNBl发送信令 blb2b3b4b5=00001至 Macro eNB, Pico eNB2发送信令 blb2b3b4b5=01000 至 Macro eNB, Pico eNB3 发送信令 blb2b3b4b5=10001至 Macro eNB, Pico eNB4发送信令 blb2b3b4b5=00110 至 Macro eNB,上述信令中 blb2表示业务优先级, 00表示低优先级, 01表 示适中优先级, 10表示高优先级, b3b4表示负载情况, 00表示低负载, 01 表示适中负载, 10表示高负载, 11表示超载, b5表示资源释放标识, 1表 示释放资源, 0表示不释放资源, 同时发送 Cell ID。
这里, Macro eNB根据接收到的信令 blb2b3b4b5 , 综合考虑当前小区 中的业务优先级、 负载情况和资源释放标识, 为 Pico eNBl、 Pico eNB2、 Pico eNB3、 Pico eNB4进行资源分配。
步驟 404、 Macro eNB发送信令 ala2a3a4a5a6a7a8=l l l l l l l l 至 Pico eNBl , 发 送 ala2a3a4a5a6a7a8=00011111 至 PicoeNB2 , 发 送 ala2a3a4a5a6a7a8=l 1111111至 Pico eNB3 ,发送 ala2a3a4a5a6a7a8 =11100000 至 Pico eNB4 , 上述信令表示 HARQ进程对应的子帧上是否配置 ABS , 其 中 1表示配置 ABS子帧, 0表示不配置 ABS子帧。
这里, Pico eNBl 接收到信令 ala2a3a4a5a6a7a8后, 在 HARQ进程 1/2/3/4/5/6/7/8对应的子帧全部配置为 ABS 子帧, Pico eNB2接收到信令 ala2a3a4a5a6a7a8后,在 HARQ进程 4/5/6/7/8对应的子帧配置为 ABS子帧, Pico eNB3接收到信令 ala2a3a4a5a6a7a8后, 在 HARQ进程 1/2/3/4/5/6/7/8 对应的子帧配置为 ABS子帧, Pico eNB4接收到信令 ala2a3a4a5a6a7a8后, 在 HARQ进程 1/2/3对应的子帧配置为 ABS子帧。
采用本发明实施例的上述流程, 可以一定程度上緩解相邻通信节点间 的干 4尤问题。
实施例四:
在本发明实施例中, 提供了一种通信节点间进一步协作的方法, 图 4 是本发明实施例的通信节点间信令交互方法的流程图, 且第一类型无线收 发装置 1具体为 Pico eNBl , 和 /或 Pico eNB2, 第一类型无线收发装置 2具 体为 Pico eNB3、 和 /或 Pico eNB4, 第二类型无线收发装置 1具体为 Macro eNBl , 第二类型无线收发装置 2具体为 Macro eNB2的情况下, 本实施例 的流程包括以下步驟:
步驟 501、 Pico eNBl发送信令 blb2b3b4=0000至 Macro eNBl , Pico eNB2 发送信令 blb2b3b4=0100 至 Macro eNBl , Pico eNB3 发送信令 blb2b3b4=1001 至 Macro eNB2, Pico eNB4发送信令 blb2b3b4=0111 至 Macro eNB2。
这里, 上述信令中 blb2表示业务优先级, 00表示低优先级, 01表示 适中优先级, 10表示高优先级, b3b4表示负载情况, 00表示低负载, 01 表示适中负载, 10表示高负载, 11表示超载, 同时发送 Cell ID;
步驟 502、 Macro eNBl和 Macro eNB2根据接收到的信令 blb2b3b4, 综合考虑当前小区中的业务优先级和负载情况, Macro eNBl 发送 blb2b3b4=0000至 Macro eNB2, Macro eNB2发送 bl b2b3b4=1010至 Macro eNBl , Macro eNBl结合 Macro eNB2的信令为 Pico eNBl、 Pico eNB2进行 资源分配, Macro eNB2结合 Macro eNBl的信令为 Pico eNB3、 Pico eNB4 进行资源分配。
步驟 503、 Macro eNBl发送信令 ala2a3a4a5a6a7a8=l l l l l l l l至 Pico eNBl , 发送 ala2a3a4a5a6a7a8=00111111至 Pico eNB2, Macro eNB2发送 a 1 a2a3 a4a5 a6a7a8= 11000111 至 Pico eNB3 , 发送 ala2a3a4a5a6a7a8 =11111000至 Pico eNB4,上述信令表示 HARQ进程对应的子帧上是否配置 ABS, 其中 1表示配置 ABS子帧, 0表示不配置 ABS子帧。
这里, Pico eNBl接收到 Marco eNBl发送的信令 ala2a3a4a5a6a7a8后, 在 HARQ进程 1/2/3/4/5/6/7/8对应的子帧全部配置为 ABS子帧, Pico eNB2 接收到信令 ala2a3a4a5a6a7a8后, 在 HARQ进程 3/4/5/6/7/8对应的子帧配 置为 ABS子帧, Pico eNB3接收到 Macro eNB2发送的信令 ala2a3a4a5a6a7a8 后, 在 HARQ进程 1/2/6/7/8对应的子帧配置为 ABS子帧, Pico eNB4接收 到信令 ala2a3a4a5a6a7a8后, 在 HARQ进程 1/2/3/4/5/对应的子帧配置为 ABS子帧。
采用本发明实施例的上述流程, 可以一定程度上緩解相邻通信节点间 的干 4尤问题。
实施例五:
在本发明实施例中, 提供了一种通信节点间频域干扰协调的方法, 基 于图 2所示的原理流程图, 第一类型无线收发装置具体为 Femto eNBl、 和 / 或 Femto eNB2, 第二类型无线收发装置具体为 Femto eNBO的情况下, 本 实施例的流程包括以下步驟:
步驟 601、 Femto eNBl通过 OAM接口发送信令 bl =1至 Femto eNBO, Femto eNB2通过 OAM接口发送信令 bl=l至 Femto eNBO, 上述信令表示 是否申请资源, 1表示申请, 0表示不申请, 同时发送 Cell ID。
这里, Femto eNBO根据接收到的信令 bl ,为 Femto eNBl和 Femto eNB2 分配频域资源。
步驟 602、 Femto eNBO通过 OAM接口发送信令 ala2a3a4a5a6=l 11000 至 Femto eNBl ,通过 OAM接口发送 ala2a3a4a5a6=000111至 Femto eNB2, 上述信令表示频域 PRB分配指示, 其中 1表示分配该 PRB, 0表示不分配 该 P亂
这里, Femto eNBl接收到信令 ala2a3a4a5a6后, 在频域上第 1/2/3个 PRB上调度用户进行数据传输, 在频域上第 4/5/6个 PRB上不调度用户或 者低功率调度用户, Femto eNB2接收到信令 ala2a3a4a5a6后, 在频域上第 4/5/6个 PRB上调度用户进行数据传输,在频域上第 1/2/3个 PRB上不调度 用户或者低功率调度用户。
采用本发明实施例的上述流程, 可以一定程度上緩解相邻通信节点间 的干 4尤问题。
实施例六: 在本发明实施例中,提供了一种通信节点间时域干扰协调的方法, 图 5 是本发明实施例的通信节点间信令交互方法的流程图, 且第一类型无线收 发装置具体为 Pico eNBl , 第二类型无线收发装置具体为 Pico eNB2的情况 下, 本实施例的流程包括以下步驟:
步驟 701、 Pico eNBl通过 X2接口发送信令 blb2b3b4=0011 至 Pico eNB2, Pico eNB2通过 X2接口发送 blb2b3b4=0110至 Pico eNBl。
这里, 上述信令中 blb2表示业务优先级, 00表示低优先级, 01表示 适中优先级, 10表示高优先级, b3b4表示负载情况, 00表示低负载, 01 表示适中负载, 10表示高负载, 11表示超载, 同时发送 Cell ID。
这里, Pico eNBl接收到信令 blb2b3b4后进行资源分配, Pico eNB2接 收到信令 blb2b3b4后进行资源分配,根据业务优先级的高低确定哪个 eNB 先使用 HARQ进程;
步驟 702、 Pico eNBl 发送信令 ala2a3a4a5a6a7a8=l 1111000 至 Pico eNB2, Pico eNB2发送信令 ala2a3a4a5a6a7a8=l 1100000至 Pico eNBl。
这里, 上述信令表示 HARQ进程对应的子帧上是否配置 ABS , 其中 1 表示配置 ABS子帧, 0表示不配置 ABS子帧;
这里, Pico eNBl 接收到信令 ala2a3a4a5a6a7a8 后在 HARQ 进程 1/2/3/4/5 对应的子帧配置为 ABS 子帧, Pico eNB2 接收到信令 ala2a3a4a5a6a7a8后在 HARQ进程 6/7/8对应的子帧配置为 ABS子帧。
采用本发明实施例的上述流程, 可以一定程度上緩解相邻通信节点间 的干 4尤问题。
实施例七:
在本发明实施例中, 提供了一种通信节点间时域干扰协调的方法, 基 于图 2所示的原理流程图, 第一类型无线收发装置具体为 Pico eNBl , 和 / 或 Pico eNB2, 第二类型无线收发装置具体为 Macro eNB的情况下,本实施 例的流程包括以下步驟:
步驟 801、 Pico eNBl通过 X2接口发送信令 blb2b3b4b5b6 =001110至 Macro eNB, Pico eNB2通过 X2接口发送 blb2b3b4 b5b6=011001至 Macro eNB。
这里, 上述信令中 blb2表示业务优先级, 00表示低优先级, 01表示 适中优先级, 10表示高优先级, b3b4表示负载情况, 00表示低负载, 01 表示适中负载, 10表示高负载, 11表示超载, b5b6表示业务服务或信道质 量, 00表示低服务或信道质量等级, 01 表示适中服务或信道质量等级, 10 表示高服务或信道质量等级, 同时发送 Cell ID。
这里, Macro eNB根据接收到的信令 blb2b3b4b5b6, 综合考虑当前小 区中的业务优先级、 负载情况和业务服务或信道质量等级, 为 Pico eNBl、 Pico eNB2进行资源分配。
步驟 802、 Macro eNB发送信令 ala2a3a4a5a6a7a8=00011111 至 Pico eNBl , 发送 ala2a3a4a5a6a7a8=l 1100000至 Pico eNB2。
这里, 上述信令表示 HARQ进程对应的子帧上是否配置 ABS , 其中 1 表示配置 ABS子帧, 0表示不配置 ABS子帧。
这里, Pico eNBl接收到 Marco eNB发送的信令 ala2a3a4a5a6a7a8后, 结合自身的业务优先级、 负载情况和业务服务或信道质量等级情况, 在 HARQ进程 6/7/8对应的子帧配置为 ABS子帧, Pico eNB2接收到 Marco eNB 发送的信令 ala2a3a4a5a6a7a8后, 结合自身的业务优先级、 负载情况和业 务服务或信道质量等级情况, 在 HARQ进程 1/2对应的子帧配置为 ABS子 帧。
采用本发明实施例的上述流程, 可以一定程度上緩解相邻通信节点间 的干 4尤问题。
实施例八: 本发明实施例通信节点间干扰协调的系统还包括分组单元, 分组单元 配置为将网络拓朴结构中的无线收发装置进行分组, 其中, 一个分组中的 无线收发装置包括第一类型无线收发装置和 /或第二类型无线收发装置, 具 体的, 在本实施例中的无线收发装置分组的拓朴图, 是根据 Pico eNB的地 理位置进行分组, 分组的拓朴图如图 6所示。
实施例九:
在本发明实施例中, 提供了一种通信节点间时域干扰协调的方法, 基 于图 7所示的原理流程图, 第一类型无线收发装置具体为 Pico eNB l、 和 / 或 Pico eNB2 , 第二类型无线收发装置具体为 Pico eNBO的情况下, 本实施 例的流程包括以下步驟:
步驟 901、 Pico eNB l通过 X2接口发送信令 bl=l至 Pico eNBO , Pico eNB2通过 X2接口发送信令 bl=l至 Pico eNBO , 上述信令表示是否申请资 源, 1表示申请, 0表示不申请, 同时发送 Cell ID。
这里, Pico eNBO根据接收到的信令 b l , 为 Pico eNB l分配资源, 为 Pico eNB2分配资源,同时为 Pico eNBO分配资源;
步驟 902、 Pico eNBO 通过 X2 接口发送信令 ala2a3a4a5a6a7a8 =11100000至 Pico eNB l , 通过 X2接口发送 al a2a3a4a5a6a7a8 =00011100 至 Pico eNB2 ,上述信令表示 HARQ进程分配指示,其中 1表示分配该 HARQ 进程, 0表示不分配该 HARQ进程。
这里, Pico eNBl接收到信令 al a2a3a4a5a6a7a8后,在 HARQ进程 1/2/3 对应的子帧上进行 R M/RLM 测量, Pico eNB2 接收到信令
Figure imgf000022_0001
Pico eNB l通过 RRC发送信令 blb2b3b4b5b6b7b8 =11100000至 UE1 , Pico eNB2通过 RRC发送信令 blb2b3b4b5b6b7b8=00011000至 UE2 , Pico eNBO通过 RRC发送信令 blb2b3b4b5b6b7b8 =00000011至 UE3和 UE4。 这里, UE1接收到 blb2a3b4b5b6b7b8后, 在 HARQ进程 1/2/3对应的 子帧上进行 CSI测量, 并上报 CSI1至 Pico eNBl , 在 HARQ进程 4/5/6/7/8 对应的子帧上进行 CSI 测量, 并上报 CSI0 至 Pico eNBl ; UE2接收到 blb2a3b4b5b6b7b8后, 在 HARQ进程 4/5对应的子帧上进行 CSI测量, 并 测量, 并上报 CSI0至 Pico eNB2; UE2和 UE3接收到 blb2a3b4b5b6b7b8 后, 在 HARQ进程 7/8对应的子帧上进行 CSI测量, 并上报 CSI1至 Pico 至 Pico eNBOo
采用本发明实施例的上述流程, 可以一定程度上緩解相邻通信节点间 的干扰问题, 获得准确的测量信息。
显然, 本领域的技术人员应该明白, 上述的本发明的各模块或各步驟 可以用通用的计算装置来实现, 它们可以集中在单个的计算装置上, 或者 分布在多个计算装置所组成的网络上, 可选地, 它们可以用计算装置可执 行的程序代码来实现, 从而, 可以将它们存储在存储装置中由计算装置来 执行, 并且在某些情况下, 可以以不同于此处的顺序执行所示出或描述的 步驟, 或者将它们分别制作成各个集成电路模块, 或者将它们中的多个模 块或步驟制作成单个集成电路模块来实现。 这样, 本发明不限制于任何特 定的硬件和软件结合。
以上所述, 仅为本发明的较佳实施例而已, 并非用于限定本发明的保 护范围。 工业实用性
本发明实施例是由第一类型无线收发装置发送第一类型信令至第二类 型无线收发装置来上报状态信息, 根据第二类型信令进行数据传输和 /或测 量; 第二类型无线收发装置根据所述第一类型信令来进行资源分配, 发送 第二类型信令至第一类型无线收发装置来进行资源分配指示。 采用本发明 实施例, 由于能在相邻通信节点间通过信令携带的状态进行资源协调, 因 此, 能有效地解决干扰问题。

Claims

权利要求书
1、 一种通信节点间干扰协调的系统, 该系统包括: 第一类型无线收发 装置、 第二类型无线收发装置; 其中,
所述第一类型无线收发装置, 配置为发送第一类型信令至第二类型无 线收发装置来上报状态信息 , 根据第二类型信令进行数据传输和 /或测量; 所述第二类型无线收发装置, 配置为根据所述第一类型信令来进行资 源分配, 发送第二类型信令至第一类型无线收发装置来进行资源分配指示。
2、 根据权利要求 1所述的系统, 其中, 所述第一类型无线收发装置, 还配置为根据第二类型信令携带的资源分配指示进行数据传输和 /或测量; 所述第二类型无线收发装置, 还配置为根据第一类型信令携带的状态 信息进行资源分配, 得到资源分配指示。
3、 根据权利要求 1所述的系统, 其中, 所述第一类型无线收发装置为 小基站, 所述第二类型无线收发装置为宏基站; 和 /或,
所述第一类型无线收发装置为与第二类型无线收发装置具有主从关系 的从基站, 所述第二类型无线收发装置为与第一类型无线收发装置具有主 从关系的主基站; 和 /或,
所述第一类型无线收发装置为与第二类型无线收发装置具有平等关系 的基站, 所述第二类型无线收发装置为与第一类型无线收发装置具有平等 关系的基站。
4、 根据权利要求 3所述的系统, 其中, 所述主从关系具体为分配资源 /上报状态信息的关系。
5、 根据权利要求 3所述的系统, 其中, 所述从基站具体为上报状态信 息的基站; 所述主基站具体为资源分配的基站。
6、 根据权利要求 1所述的系统, 其中, 所述第一类型无线收发装置与 第二类型无线收发装置之间具有指定的收发关系。 7、 根据权利要求 1至 6中任一项所述的系统, 其中, 所述第二类型无 线收发装置, 还配置为根据接收到的一个或多个第一类型无线收发装置发 送的第一类型信令确定资源分配方式, 并采用第二类型信令将确定的资源 分配方式告知一个或多个第一类型无线收发装置。
8、 根据权利要求 1至 6中任一项所述的系统, 其中, 所述第一类型无 线收发装置 , 还配置为根据接收到的第二类型无线收发装置发送的第二信 令进行数据传输和 /或测量, 并通知终端进行测量。
9、 根据权利要求 1至 6中任一项所述的系统, 其中, 所述测量为: 无 线链路监听 RLM、 无线资源管理 RRM、 参考信号接收功率 RSRP、 参考信 号接收质量 RSRQ、 接收信号强度指示 RSSI、 干扰测量、 信道状态测量中 的至少一种; 所述信道状态测量包括基于参考信号和 /或同步信号的测量。
10、 根据权利要求 1至 6中任一项所述的系统, 其中, 该系统还包括 分组单元, 配置为将网络拓朴结构中的无线收发装置进行分组。
11、 根据权利要求 10所述的系统, 其中, 一个分组中的无线收发装置 包括第一类型无线收发装置和 /或第二类型无线收发装置。
12、 根据权利要求 10所述的系统, 其中, 所述分组单元, 还配置为具 体根据无线收发装置的地理位置进行分组。
13、 根据权利要求 10所述的系统, 其中, 所述分组单元, 还配置为根 据分组单元内的无线收发装置进行资源分配协作。
14、 根据权利要求 13所述的系统, 其中, 所述分组单元, 还配置为在 分组单元之间通过第二类型无线收发基站进行具体的资源分配协作。
15、 一种通信节点间干扰协调的方法, 该方法包括:
第一类型无线收发装置发送第一类型信令至第二类型无线收发装置来 上报状态信息 , 根据第二类型信令进行数据传输和 /或测量;
第二类型无线收发装置根据第一类型信令来进行资源分配, 发送第二 类型信令至第一类型无线收发装置来进行资源分配指示。
16、 根据权利要求 15所述的方法, 其中, 该方法还包括: 第二类型无 线收发装置根据第一类型信令携带的状态信息进行所述资源分配, 得到资 源分配指示, 第一类型无线收发装置根据第二类型信令携带的资源分配指 示进行所述数据传输和 /或测量。
17、 根据权利要求 15所述的方法, 其中, 所述第二类型信令具体为资 源指示信令。
18、 根据权利要求 17所述的方法, 其中, 所述资源指示信令包括第一 类型收发装置能调度使用的时域资源、 和 /或频域资源指示、 和 /或资源分配 时长指示。
19、 根据权利要求 15所述的方法, 其中, 所述第二类型信令具体通过 第一类型无线收发装置与第二类型无线收发装置间的信令交互接口进行传 递。
20、 根据权利要求 19 所述的方法, 其中, 所述信令交互接口为: X2 接口、 无线资源控制 RRC信令接口、 操作管理维护 OAM接口中的任意一 种。
21、 根据权利要求 19所述的方法, 其中, 通过所述信令交互接口进行 传递具体包括: 通过信令交互接口上的已有的非 UE相关消息、 和 /或新增 的非 UE相关消息进行传递。
11、 根据权利要求 21所述的方法, 其中, 所述已有的非 UE相关消息 具体包括: 几乎全空子帧信息 ABS Information消息、和 /或相关窄带传输功 率 Relative Narrowband Tx Power消息;
所述新增的非 UE相关消息具体包括: ABS或开关状态指示消息、 和 / 或指示 HARQ进程占用信息的位图 bitmap消息、和 /或指示频域物理资源块 PRB分配的 bitmap消息。 23、 根据权利要求 16所述的方法, 其中, 所述第一类型信令具体为状 态报告信令。
24、 根据权利要求 23所述的方法, 其中, 所述状态报告信令具体为: ECGI、 资源请求消息、 请求资源的大小、 负载指示、 业务优先级指示、 业 务服务或信道质量指示、 业务活动性预测指示、 资源占用情况、 资源释放 消息中的至少一种。
25、 根据权利要求 24所述的方法, 其中, 所述第一类型信令具体通过 第一类型无线收发装置与第二类型无线收发装置间的信令交互接口进行传 递。
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