WO2012152229A1 - 无线网络配置方法、装置和系统 - Google Patents

无线网络配置方法、装置和系统 Download PDF

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Publication number
WO2012152229A1
WO2012152229A1 PCT/CN2012/075452 CN2012075452W WO2012152229A1 WO 2012152229 A1 WO2012152229 A1 WO 2012152229A1 CN 2012075452 W CN2012075452 W CN 2012075452W WO 2012152229 A1 WO2012152229 A1 WO 2012152229A1
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Prior art keywords
uplink
cell
isolated cell
downlink
configuration
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PCT/CN2012/075452
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English (en)
French (fr)
Inventor
于映辉
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP12781615.5A priority Critical patent/EP2699034B1/en
Priority to JP2014509599A priority patent/JP5810432B2/ja
Publication of WO2012152229A1 publication Critical patent/WO2012152229A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/24Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2643Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA]
    • H04B7/2656Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA] for structure of frame, burst
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/02Arrangements for optimising operational condition
    • 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
    • H04JMULTIPLEX COMMUNICATION
    • H04J11/00Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0023Interference mitigation or co-ordination
    • H04J11/005Interference mitigation or co-ordination of intercell interference
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02Resource partitioning among network components, e.g. reuse partitioning
    • H04W16/10Dynamic resource partitioning
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24Cell structures
    • H04W16/32Hierarchical cell structures
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames

Definitions

  • the present application claims priority to Chinese Patent Application No. 201110122632.1, entitled “Wireless Network Configuration Method, Apparatus and System", filed on May 12, 2011, The entire contents are incorporated herein by reference.
  • the present invention relates to the field of communications technologies, and in particular, to a wireless network configuration method, apparatus, and system.
  • TD Long Term Evolution TD-LTE
  • TDD Time Divided Duplexing
  • the uplink and downlink configuration includes a variety of different uplink and downlink configurations, which can meet a variety of different uplink and downlink ratio service requirements, which is compared with Frequency Dividing Duplexing (FDD), TDD.
  • FDD Frequency Dividing Duplexing
  • the present invention provides a method, an apparatus, and a system for configuring a wireless network, which are used to solve the problem that the interference of different uplink and downlink configurations is severe in the prior art, and the interference of different uplink and downlink configurations is reduced.
  • the embodiment of the invention provides a wireless network configuration method, including: Receiving an uplink and downlink configuration that needs to be changed and sent by an isolated cell in an isolated cell cluster, where the isolated cell cluster is one or more cells that provide local continuous coverage;
  • the embodiment of the invention further provides a wireless network configuration method, including:
  • the configuration of the uplink and downlink services of the isolated cell is performed according to the uplink and downlink configuration that is used by the associated upper-layer cell to allow the isolated cell to be used.
  • the embodiment of the invention further provides a wireless network configuration device, including:
  • a request receiving module configured to receive an uplink and downlink configuration that needs to be changed by an isolated cell in an isolated cell cluster, where the isolated cell cluster is one or more cells that provide local continuous coverage
  • an interference control module configured to The uplink and downlink configuration currently used by the cell and the uplink and downlink configuration that is required to be changed by the request receiving module, determining an uplink and downlink configuration that is allowed to be used by the isolated cell, and performing interference control on the isolated cell;
  • a configuration returning module configured to return, to the isolated cell, an uplink and downlink configuration determined by the interference control module to allow the isolated cell to be used.
  • the embodiment of the invention further provides a wireless network configuration device, including:
  • a sending module configured to determine an uplink and downlink configuration that needs to be changed according to a current uplink and downlink service requirement, and send an uplink and downlink configuration that needs to be changed in the isolated cell to an associated upper layer cell of an isolated cell cluster to which the isolated cell belongs, the isolated cell cluster One or more cells for providing local continuous coverage;
  • the configuration module is configured to be connected to the sending module, and configured to perform uplink and downlink service configuration of the isolated cell according to an uplink and downlink configuration that is used by the associated upper-layer cell to allow the isolated cell to be used.
  • the embodiment of the invention further provides a wireless network configuration system, including:
  • the isolated cell cluster is one or more cells that provide local continuous coverage, and the number of the associated upper layer cells directly adjacent to the isolated cell cluster is less than a set threshold;
  • the associated upper layer cell adopts any wireless network configuration device provided by the embodiment of the present invention
  • each isolated cell of the isolated cell cluster adopts any wireless network configuration device provided by the embodiment of the present invention.
  • the associated upper layer cell may determine how to change the isolated cell according to the uplink and downlink configuration currently used by the isolated cell and the uplink and downlink configuration that needs to be changed.
  • the interference control of the isolated cell can reduce the interference of different uplink and downlink configurations, and realize the coexistence of interferences of different configured cells, so that the upper and lower configurations of isolated cells are more reasonable and meet the requirements of different uplink and downlink traffic.
  • Figure la is a schematic diagram of an isolated cell cluster in a heterogeneous network architecture of TDD mode or FDD+TDD mode in an embodiment of the present invention
  • FIG. 1b is a schematic diagram of a non-isolated cell cluster in a heterogeneous network architecture of a TDD mode or an FDD+TDD mode according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for configuring a wireless network according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for configuring a wireless network according to another embodiment of the present invention
  • FIG. 3 is a schematic diagram of a wireless network according to another embodiment of the present invention
  • Flow chart of the configuration method 4a is a signaling flowchart of configuration management in a wireless network configuration method according to another embodiment of the present invention
  • FIG. 4b is a signaling flowchart of an uplink and downlink configuration update in a wireless network configuration method according to another embodiment of the present invention.
  • 4c is a schematic diagram of an uplink and downlink configuration on an associated macro cell and an isolated cell in a wireless network configuration method according to another embodiment of the present invention
  • FIG. 4 is a schematic diagram of a method for configuring a wireless network according to another embodiment of the present invention.
  • FIG. 4e is a schematic diagram of the associated macro cell in the wireless network configuration method according to another embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a wireless network configuration apparatus according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram of a wireless network configuration according to another embodiment of the present invention
  • FIG. 7 is a schematic diagram of a wireless network configuration apparatus according to another embodiment of the present invention
  • FIG. 8 is a schematic diagram of a wireless network configuration apparatus according to another embodiment of the present invention
  • FIG. 10 is a schematic diagram of a wireless network configuration system according to another embodiment of the present invention.
  • Table 1 shows the time-division duplex (Time Div is ion Dup l ex ing; TDD) uplink and downlink configuration in the TD Long Term Evolution;
  • TD-LTE system Table 1 TDD uplink and downlink configuration in TD-LTE system
  • the TDD system can effectively solve the problem of uplink and downlink interference of the TDD system, but the TDD system loses the flexible configuration of uplink and downlink resources to meet different uplink and downlink services.
  • the advantage of quantity demand. The main idea of the embodiment of the present invention is: determining how to change an isolated cell according to an uplink and downlink configuration currently used by an isolated cell in an isolated cell cluster, and an uplink and downlink configuration that needs to be changed.
  • FIG. 1 is a TDD in one embodiment of the present invention. Schematic diagram of an isolated cell cluster (I solated Cel ls ) in a heterogeneous network architecture of a mode or FDD+TDD mode, FIG. 1b is a non-isolated cell cluster in a heterogeneous network architecture of a TDD mode or an FDD+TDD mode according to an embodiment of the present invention Schematic diagram.
  • the cells of layer 1 and layer 1 all use TDD cells of the same frequency; in the heterogeneous network of FDD+TDD, the uplink (DL) of FDD and the uplink of FDD
  • the link (UL) constitutes the coverage of layer 1
  • the FDD uplink (UL) provides layer 2 coverage of the TDD mode, for example: coverage of low power nodes (low power nodes; LPN).
  • Layer 1 is used to provide a wide coverage of the network. If layer 1 is an overlay layer for the cell deployment of the TDD system, the overlay layer needs to perform the uplink and downlink configuration of the TDD cell according to the uplink and downlink traffic of the coverage area service.
  • Layer 2 is mainly used to provide additional network capacity to meet the capacity requirements of a specific area.
  • Layer 2 may have different uplink and downlink traffic requirements in different areas due to different coverage areas, which may result in different uplink and downlink configurations, and
  • the cells of 2 are mainly used to increase the capacity, and the main form of these cells is LPN.
  • the heterogeneous network is mostly the discontinuous coverage method shown in Figure la.
  • the coverage of the LPN of one or more consecutive layers of the layer 2 may be used as an example in the embodiment of the present invention.
  • the upper layer is directly associated with the upper layer.
  • the number of the cells, the one or more cells that provide the local continuous coverage are isolated cell clusters or non-isolated cell clusters, where the upper layer cell of the micro cell is a macro cell, and the upper layer cell of the pico cell is a micro cell or a macro cell, if The number of directly adjacent macro cells of one or more cells providing local continuous coverage is less than the set number N (the value of N may usually be 2 ⁇ 3, or other single digits, not selecting a large number For the interference control, the one or more cells that provide local continuous coverage are considered to be isolated cell clusters.
  • N for example: 30
  • the neighboring upper layer cell is the associated upper layer cell of the isolated cell cluster.
  • the network side management node is, for example, 0AM, radio resource management (Radio resource management; RTM), radio environment map (Radio envi ro ent Map; cartridge: REM), core network (Core network;
  • the cylinder is called: CN) or the radio access node (Radio acces s Node; RAN), etc., and can identify the range of network deployment of cells that need to perform different uplink and downlink configurations, that is, whether one or several cells are isolated cells.
  • Cluster the deployment scope is the area that may cause interference due to different uplink and downlink configurations.
  • the identification of the cell providing the local coverage may be implemented by the configuration of the network side management node such as the operation, management, and maintenance equipment (Operational Management and Management).
  • the 0AM can reflect the deployment of the network by the operator, and determine whether a cell belongs to an isolated cell cluster or a non-isolated cell cluster according to the deployment scope of different cell network coverage. If it is an isolated cell cluster, it can perform different uplink and downlink configurations, and it needs to coordinate resource management with the cells in its affected area to perform interference avoidance or interference cancellation. If it is a non-isolated cell cluster, the network side can consider whether it is based on the proportion of its business needs. Perform the modification of the uplink and downlink configuration of the entire network, and how to tamper with it to avoid interference.
  • Figure l is a flowchart of a method for configuring a wireless network according to an embodiment of the present invention. As shown in Figure lc, the method for configuring a wireless network may include:
  • isolated cell clusters For definitions of isolated cell clusters, isolated cells, and associated upper-layer cells, refer to FIG. 1a, FIG. 1b, and related descriptions.
  • the uplink cell receives the need for sending an isolated cell in the isolated cell cluster. After the uplink and downlink configuration to be changed, it is possible to determine how to change the uplink and downlink configuration of the isolated cell according to the uplink and downlink configuration currently used by the isolated cell and the uplink and downlink configuration that needs to be changed, and perform interference control on the isolated cell, which can reduce different upper and lower
  • the interference of the line configuration enables the interference coexistence of the cells in different uplink and downlink configurations, so that the uplink and downlink configurations of the isolated cells are more reasonable and meet the requirements of different uplink and downlink traffic.
  • FIG. 2 is a flowchart of a method for configuring a wireless network according to another embodiment of the present invention. As shown in FIG. 2, the method for configuring a wireless network may include:
  • the associated upper-layer cell may update the received initial isolated cell list according to the result of the interference detection, which may include:
  • the network side management node may send configuration information of each isolated cell cluster in the coverage area of the associated upper layer cell to the association
  • the upper layer cell where the configuration information of an isolated cell cluster may generally include: a list of each LPN in the isolated cell cluster, that is, an isolated cell list.
  • the configuration information of the isolated cell cluster may further include: “is an indication of an isolated cell” to indicate whether a certain cell is an isolated cell, and of course, whether a certain cell is an isolated cell may be preset, so that It is not necessary to carry "instructions whether it is an isolated community".
  • the configuration information of the isolated cell cluster may also be associated with the upper-layer cell list. Therefore, the wireless network configuration method may further include:
  • the network side management node may be: 0AM, RRM, REM, CN or RAN.
  • the associated upper layer cell may initiate interference detection on each isolated cell of the isolated cell cluster; if the detection result of interference to an isolated cell is lower than a set threshold, the isolated cell is isolated from the isolated cell Delete the list of isolated cells corresponding to the cell cluster; If the detection result of the isolated cell interference is higher than the set threshold, the isolated cell is saved in the isolated cell list corresponding to the isolated cell cluster. Then, the associated upper layer cell may notify the isolated cell of the configuration update information of the isolated cell cluster, so that the isolated cell knows that it does not cause interference to the associated upper layer cell, where the configuration update information of the isolated cell cluster may be The information of the isolated cell that is specifically added or deleted may also be the updated isolated cell list. In addition, the associated upper layer cell may send the configuration update information of the isolated cell cluster to the network side management node, so that the network side management node can perform subsequent configuration management.
  • the 203 performing interference control may specifically include the following two methods:
  • Manner 1 determining an uplink and downlink configuration that is allowed to be used by the isolated cell according to an uplink and downlink configuration currently used by the isolated cell, an uplink and downlink configuration that needs to be changed, and a resource status of the associated upper-layer cell, according to the current isolated cell
  • the uplink and downlink configuration used, and the uplink and downlink configuration used by the isolated cell are allowed to perform interference avoidance, which may include:
  • determining, according to the uplink and downlink configuration currently used by the isolated cell, the uplink and downlink configuration that needs to be changed, and the resource status of the associated upper-layer cell, determining the uplink and downlink configuration that is allowed to be used by the isolated cell may include:
  • the uplink and downlink configuration used by the isolated cell is allowed to be changed to the uplink and downlink configuration that needs to be changed;
  • the uplink and downlink configuration that allows the isolated cell to be used is selected according to the uplink and downlink configuration that needs to be changed and the resources of the associated upper-layer cell itself; or If the resource condition resource associated with the upper-layer cell does not support the uplink-downlink configuration that needs to be changed, the uplink-downlink configuration that is used by the isolated cell is allowed to be the uplink-downlink configuration currently used by the isolated cell.
  • performing the interference avoidance according to the uplink and downlink configuration currently used by the isolated cell and the uplink and downlink configuration used by the isolated cell may include:
  • the associated upper-layer cell is a time-division duplex cell, compare the uplink and downlink configuration used by the isolated cell with the location of the subframe that is incompatible in the uplink and downlink configuration currently used by the isolated cell, and blank the incompatible Subframe; or
  • the associated upper-layer cell is a frequency-division duplex cell, compare the uplink-downlink configuration that is allowed to be used by the isolated cell and the uplink-downlink configuration that is used by the isolated cell, and allow the downlink in the uplink-downlink configuration used by the isolated cell. If the number of the subframes is increased, the associated upper-layer cell determines whether the idle uplink subframe can be vacant as the downlink subframe of the time-division duplex cell according to the uplink traffic, and if yes, determines the allowed increase according to the number of idle uplink subframes. The number of downlink subframes; if the number of uplink subframes in the uplink and downlink configuration used by the isolated cell is allowed to increase, the isolated cell is allowed to change the uplink and downlink configuration.
  • the uplink and downlink control channels that need to be changed are determined as the uplink and downlink configurations that are allowed to be used by the isolated cell, and the configuration information of the uplink and downlink control channels that need to be changed in the isolated cell is obtained, according to the uplink and downlink currently used by the isolated cell.
  • the configuration of the uplink and downlink configuration that needs to be changed, and the configuration information of the uplink and downlink control channels that need to be changed, and performing interference cancellation may include:
  • the receiver of the associated upper layer cell identifies a signal of the user equipment UE of the isolated cell on the uplink control channel, and the signal of the uplink control channel is incompatible with the uplink and downlink configuration.
  • the signal of the UE from the isolated cell in the uplink control channel is subtracted from the received total signal, and a useful signal is obtained from the UE of the associated upper layer cell; or, the associated upper layer cell
  • the receiver of the UE identifies the signal of the isolated cell on the downlink control channel, and the signal of the downlink control channel is from a subframe position where the uplink and downlink configurations are incompatible, and subtracts the isolated cell from the received total signal.
  • the receiver of the UE associated with the upper layer cell identifies a signal of the isolated cell in a downlink control channel in a downlink subframe position of the isolated cell, and the downlink control The channel is from a subframe position where the uplink and downlink configurations are incompatible, and the signal from the isolated cell in the downlink control channel is subtracted from the received total signal, and a useful message from the associated macro cell is obtained, wherein the uplink and downlink configuration is incompatible.
  • the subframe position is determined by an uplink and downlink configuration currently used by the isolated cell and an uplink and downlink configuration that needs to be changed, where
  • the subframe location in which the associated upper-layer cell identifies that the uplink and downlink configurations are incompatible may specifically include the following:
  • the subframe position in which the uplink and downlink configuration is incompatible is a sub-frame position that is different from the uplink and downlink configuration and the uplink and downlink configuration in the currently used uplink and downlink configuration.
  • the subframe position in which the uplink and downlink configuration is incompatible is a sub-frame position that is different between the uplink and downlink configuration that needs to be changed and the uplink and downlink configuration that is currently used by the FDD.
  • a method for reducing interference in the prior art is to deploy different uplink and downlink configurations in different frequency bands and deploy different in different areas when the spectrum resources are relatively rich. The frequency band, so as to meet the needs of different uplink and downlink services in different regions. In addition, it is also possible to satisfy different networks by combining different frequency bands. The demand for comparison between upstream and downstream business.
  • Another method for reducing interference in the prior art is to delay the scheduling of subframes (time slots) with interference, scheduling as low as possible, or scheduling in the case of weak interference.
  • This method needs to detect interference conditions on subframes of different configurations, and perform interference avoidance on scheduling according to the interference situation.
  • performing interference detection on a specific time slot and a subframe, and scheduling based on the detection result is a process of dynamic detection and scheduling, which requires frequent detection and signaling support, and the practical application is complicated. If data scheduling is not performed on subframes of different configurations, interference detection on the subframe may not be performed.
  • the embodiment of the present invention does not need to set a scheduling priority, and does not cause unscheduled large-area subframes. Therefore, the throughput of the network is not affected, and the implementation cost is low; interference control is not required for all subframes. It only needs to perform interference control on the isolated cell, so it interferes with the control of the single.
  • the uplink and downlink configuration currently used by the isolated cell and the uplink and downlink configuration that needs to be changed may be determined.
  • the uplink and downlink configuration of the isolated cell, the interference control of the isolated cell, the interference of different uplink and downlink configurations can be reduced, and the interference coexistence of different uplink and downlink configuration cells can be realized, so that the uplink and downlink configurations of the isolated cell are more reasonable, and the uplink and downlink traffic is satisfied. Demand.
  • FIG. 3 is a flowchart of a method for configuring a wireless network according to another embodiment of the present invention. As shown in FIG. 3, the method for configuring a wireless network may include:
  • the associated upper layer cell of the isolated cell cluster to which the cell belongs is sent the uplink and downlink configuration that needs to be changed, and the isolated cell cluster is one or more cells that provide local continuous coverage;
  • each isolated cell may update the saved associated upper-layer cell list, which may include:
  • the isolated cell may acquire and save the configuration information of the associated upper layer cell of the isolated cell cluster to which the isolated cell belongs; specifically, the network side management node may send the configuration information of the associated upper layer cell of the isolated cell cluster to which the isolated isolated cell belongs
  • the isolated cell, where the configuration information of the associated upper-layer cell received by the isolated cell may include: an initial associated upper-layer cell column, where the network-side management node may be 0AM, RRM, REM, CN or RAN.
  • the isolated cell may initiate interference detection on each associated upper layer cell of the isolated cell cluster to which the isolated cell belongs; if the detection result of interference to an associated upper layer cell is higher than a set threshold, the associated upper layer is The cell is saved in the initial associated upper layer cell list; if the detection result of interference to an associated upper layer cell is lower than a set threshold, the one associated upper layer cell is deleted from the initial associated upper layer cell list.
  • the configuration information of an associated upper-layer cell received by the isolated cell may further include an initial isolated cell list.
  • the isolated cell may notify the associated upper-layer cell to update the detected result according to the isolated cell interference.
  • a list of isolated cells saved in the associated upper layer cell may be
  • the isolated cell detects the update of the one associated upper layer cell
  • the configuration update information of the one associated upper layer cell is sent to the network side management node.
  • the associated upper layer cell may perform interference control (including interference avoidance or interference cancellation) on the isolated cell, determine how to change the uplink and downlink configuration of the isolated cell, and The uplink and downlink configuration of the isolated cell is allowed to be returned to the isolated cell.
  • interference control including interference avoidance or interference cancellation
  • the configuration of the uplink and downlink services of the isolated cell is performed according to the uplink and downlink configuration that is used by the associated upper-layer cell to allow the isolated cell to be used.
  • the wireless network configuration method may further include:
  • the neighboring cell includes an isolated cell other than the isolated cell initiating the request and an associated upper layer of the isolated cell cluster in the isolated cell cluster to which the isolated cell belongs.
  • the other isolated cells in the isolated cell cluster to which the isolated cell belongs, and the associated upper-layer cell in the isolated cell cluster can learn the uplink and downlink configuration currently used by the isolated cell, so that the uplink and downlink configurations can be used to perform their respective Configuration of uplink and downlink services.
  • the uplink and downlink configuration currently used by the isolated cell and the uplink and downlink configuration that needs to be changed may be used for the isolated cell.
  • the interference control is performed to determine how to change the uplink and downlink configuration of the isolated cell.
  • the interference of different uplink and downlink configurations can be reduced, and the interference coexistence of different uplink and downlink configuration cells can be realized, so that the uplink and downlink configurations of the isolated cell are more reasonable, and the uplink and downlink traffic is satisfied. Demand, low spectrum resources and low cost.
  • the isolated cell may be an LPN
  • the upper layer cell may be a macro cell
  • the network side management node such as 0AM may isolate the cell cluster.
  • the configuration information is sent to the directly adjacent macro cell, that is, the associated upper layer cell.
  • the directly adjacent macro cells of the coverage area of the isolated cell cluster LPN_1 are the macro cell-1 and the macro cell-2
  • the 0AM may send the configuration information of the associated upper layer cell to the base station where the isolated cells of the LPN_1 are located.
  • the configuration information of the associated upper layer cell may include: a list of macro cells directly adjacent to the isolated cell cluster, and may also include information indicating whether the cell is an isolated cell, an isolated cell list, and the like.
  • the 0AM may also send the configuration information of the isolated cell cluster to the directly adjacent macro cell of the isolated cell cluster, and may include: an indication of an isolated cell, an isolated cell list, and the like, and may also include a macro directly adjacent to the isolated cell cluster. List of cells.
  • the configuration information of the isolated cell cluster may be sent to the macro cell corresponding to the isolated cell cluster, and the configuration information of the associated upper layer cell is sent to the same.
  • the associated upper layer cell may be a non-macro cell, but a cell with a larger coverage than the isolated cell cluster.
  • the associated macro cell is taken as an example for description.
  • the isolated cell and the associated macro cell may perform the update of the isolated cell list or the macro cell list based on the interference detection, and the updated isolated cell list or the macro cell list may be sent to the 0AM or other network side management nodes, such as: ⁇ , REM , CN or RAN 0
  • FIG. 4 is a flowchart of configuration management in a wireless network configuration method according to another embodiment of the present invention. As shown in FIG. 4a, a specific process of configuration management on a network side may include:
  • the configuration information of the associated macro cell may be saved, for example: an associated macro cell list; optionally, the configuration of the associated macro cell.
  • the information may also include an indication of whether the macro cell is associated, an isolated cell list, and the like.
  • the isolated cell performs interference detection on the associated macro cell. If the associated macro cell interference value detected by the isolated cell is higher than a set threshold, the isolated cell may notify the associated macro cell of the existence of the isolated cell, and update. The associated macro cell list saved by the isolated cell; otherwise, the isolated cell does not need to notify the associated macro cell.
  • the isolated cell may send an update of the associated macro cell, for example, an added associated macro cell or an updated associated macro cell list to the 0AM or other network side management nodes such as: RRM, REM, CN or RAN.
  • the associated macro cell may initiate interference detection for each isolated cell in the isolated cell cluster.
  • the associated macro cell deletes the isolated cell from the isolated cell list saved by the associated macro cell, and deletes the operation. The isolated cell is notified of the deletion.
  • the associated macro cell may also send an update of the isolated cell, for example, the information of the added isolated cell or the updated isolated cell list to the 0AM or other network side management node, such as: RRM, REM, CN or RAN, etc.
  • 401-403 is a process in which the isolated cell updates its saved associated macro cell list.
  • the associated macro cell updates its saved isolated cell list. There can be no timing relationship between the two.
  • the isolated cells of the isolated cell cluster store the configuration information of the associated macro cell, and the associated macro cell stores Configuration information of isolated cell clusters. If an isolated cell of an isolated cell cluster needs to update its uplink and downlink configuration due to service requirements, the isolated cell may send a time division multiplexing uplink and downlink configuration change request to its associated macro cell, and the associated macro cell may be based on its own resource situation. Perform resource management to avoid interference caused by modification of the uplink and downlink configuration of the isolated cell.
  • FIG. 4b is a signaling flowchart of an uplink and downlink configuration update in a wireless network configuration method according to another embodiment of the present invention.
  • the uplink and downlink configuration update negotiation process between the isolated cell cluster and the related cell may include:
  • an isolated cell of an isolated cell cluster changes according to its uplink and downlink service requirements, it is found that the currently used uplink and downlink configuration needs to be updated, and the isolated cell sends a time division multiplexing configuration change request to the associated macro cell.
  • the uplink and downlink configuration that needs to be changed is indicated in the time division multiplexing configuration change request.
  • the uplink and downlink configuration in the embodiment of the present invention may be any one of the following: a TDD uplink and downlink configuration defined in an LTE system, a TDD uplink and downlink configuration of a Wimax system, a TDD uplink and downlink configuration of a TDS-CDMA, or other TDD systems. Line configuration.
  • LPN low power node
  • the TDD uplink and downlink configuration that needs to be changed is carried in the time division multiplexing configuration change request, and may be an index value of 0 of configuration-0; or a configuration mode of the specific TDD uplink and downlink is directly given.
  • DSUUUDSUUU" or "1100011000" where "1" represents a downlink subframe, "0" represents an uplink subframe, or
  • the TDD uplink and downlink configuration information before the change may be carried in the time division multiplexing configuration change request, for example, the index value of the -2 is set to "2" or the configuration is directly carried. _2
  • the associated macro cell may perform resource management according to the uplink and downlink configuration, the current uplink and downlink configuration, and the resource status of the associated macro cell, which are required to be changed by the isolated cell, and mainly perform interference control to determine whether to allow the uplink and downlink configuration to be changed. To avoid interference caused by the modification of the uplink and downlink configuration of the isolated cell cluster.
  • FIG. 4 is a schematic diagram of an uplink and downlink configuration on an associated macro cell and an isolated cell in a method for configuring a wireless network according to another embodiment of the present invention
  • the configuration in FIG. 4c is taken as an example, where the interference control may include Interference avoidance and interference cancellation, it is assumed that the type of associated macro cell can be divided into time division duplex cell or frequency division duplex cell, and interference control is specifically divided into the following modes:
  • Method 1 Perform interference avoidance according to the received uplink and downlink configuration
  • the associated macro cell If the associated macro cell is a time division duplex cell, the associated macro cell first compares the uplink and downlink configuration that the isolated cell requires to change and the location of the incompatible subframe of the uplink and downlink configuration of the current cell. For example, when the TDD uplink and downlink configuration on the associated macro cell is configured as configuration_2, if the isolated cell request is changed to configuration-0, the configuration of the associated macro cell having 2 subframes is incompatible in each radio frame. For the configuration of the two incompatible subframes, the associated macro cell may adopt the following method: The associated macro cell blanks the incompatible subframe, that is, does not send any signaling or data on the incompatible subframe.
  • the configuration of the blanking subframe may be notified by the associated macro cell to the UE it serves and other macro cells adjacent thereto.
  • the notification may optimize the UE under the macro cell or the UE under the neighboring macro cell to perform cell identification and measurement.
  • the associated macro cell cancels the scheduling of resources on the incompatible subframe. In this case, non-scheduling-based signals may continue to be sent. Scheduling-based information can be cancelled, including signaling and data.
  • the associated macro cell may also perform resource scheduling only for the user equipment UE whose signal quality of the isolated cell measured on the incompatible subframe is lower than the set threshold. The scheduling of the incompatible subframe resource is not performed for the user equipment UE whose signal quality of the isolated cell measured on the incompatible subframe is higher than the set threshold.
  • the associated macro cell may change the uplink and downlink configuration requested by the isolated cell according to its own resource status, for example: - 2 , but only changed to configuration _ 1.
  • the associated macro cell If the associated macro cell is a frequency division duplex cell, the associated macro cell first compares the uplink and downlink configuration that the isolated cell needs to be changed with the current uplink and downlink configuration of the isolated cell, and determines those changes in the number of subframes.
  • the processing of the FDD associated macro cell may include: if the number of downlink subframes in the uplink and downlink configuration that the isolated cell needs to be changed increases, for example, when the isolated cell configuration is changed from the configuration-0 request to the configuration-2, there are four The uplink subframe needs to be changed to the downlink subframe, that is, the downlink subframe in the uplink and downlink configuration is increased.
  • the FDD associated macro cell counts the uplink traffic, and determines whether part of the uplink subframe can be vacated to avoid interference caused by the downlink transmission of the isolated cell on the uplink subframe. If a part of the uplink subframe can be vacated, the associated macro cell can idle the corresponding uplink subframe according to the location of the downlink subframe in the uplink and downlink configuration updated by the request of the isolated cell (eg, 4); If the associated macro cell cannot be idle (for example, only 2 can be vacated), the FDD associated macro cell can change the uplink and downlink configuration of the isolated cell request according to its own resource status (eg: not used) Configuration - 2, while using configuration _ 1).
  • the FDD associated macro cell can change the uplink and downlink configuration of the isolated cell request according to its own resource status (eg: not used) Configuration - 2, while using configuration _ 1).
  • the FDD-associated macro cell may perform the scheduling of the uplink resource in the downlink subframe position in the original uplink and downlink configuration of the isolated cell. At this time, the FDD-related macro cell may agree to the request for the uplink and downlink configuration change of the isolated cell.
  • Manner 2 Perform interference cancellation according to the received uplink and downlink configuration.
  • the isolated cell needs to notify the associated macro cell of the configuration information of the uplink and downlink control channels that need to be changed to support the associated macro cell for interference cancellation.
  • the associated macro cell compares the uplink and downlink configuration that needs to be changed with the incompatible subframe of the uplink and downlink configuration of the current cell.
  • the associated macro cell needs to perform interference cancellation on the incompatible subframe.
  • two cases may be included, one case: the receiver of the associated macro cell identifies the signal from the isolated cell UE, and then subtracts the signal from the isolated cell UE in the received total signal, thereby obtaining the associated macro cell.
  • the useful signal of the UE another case is: the receiver of the UE associated with the macro cell identifies the signal from the isolated cell, and then subtracts the signal from the isolated cell in the received total signal, thereby obtaining useful information from the associated macro cell. signal.
  • the associated macro cell is a frequency division duplex cell
  • the associated macro cell saves the changed uplink and downlink configuration, and obtains the configuration information of the uplink and downlink control channel corresponding to the changed uplink and downlink configuration, and then performs interference cancellation according to the configuration information.
  • the associated macro cell is an FDD cell and the corresponding isolated cell satisfies the TDD compatible configuration in the UL frequency band of the FDD; as shown in FIG.
  • the associated macro cell is an FDD and the corresponding isolated cell does not satisfy the TDD compatible configuration in the UL frequency band of the FDD, where the isolated cell corresponding to the blank frame of the macro cell _1 is corresponding.
  • the location of the downlink data transmission, the LPN corresponding to the macro cell-1 is an isolated cell, and the uplink and downlink configuration of the macro cell-1 and its corresponding isolated cell LPN in Figure 4d meets the configuration _ 0 in Table 1; - 1 and its corresponding isolated cell LPN uplink and downlink configuration does not satisfy any of the configurations in Table 1.
  • the incompatible subframe position is identified, and then the interference cancellation is performed on the incompatible subframe position, which may include two cases.
  • One case is: the receiver of the associated macro cell is in the uplink subframe position of the isolated cell. Identifying signals from the isolated cell UE at the subframe position where the uplink and downlink configurations are incompatible, and then subtracting the signal from the isolated cell UE in the received total signal, thereby obtaining a useful signal from the UE of the associated macro cell;
  • the situation is: the receiver of the UE associated with the macro cell identifies the signal from the isolated cell at the subframe position where the uplink and downlink configuration is incompatible at the downlink subframe position of the isolated cell, and then subtracts the isolated cell from the received total signal. The signal, which results in a useful signal from the associated macro cell.
  • the uplink and downlink configuration response may be sent to the isolated cell, where the uplink and downlink configuration that allows the isolated cell to be used is carried.
  • the uplink and downlink configuration may be an uplink and downlink configuration carried in the time division multiplexing configuration change request of the isolated cell, or may be an uplink and downlink configuration of the associated macro cell change.
  • the representation of the uplink and downlink configuration may be a configuration X in Table 1, or a specific uplink and downlink configuration mode. As described in the previous 501, it will not be described again.
  • the isolated cell After the isolated cell receives the uplink and downlink configuration response of the associated macro cell, the isolated cell performs the configuration of the uplink and downlink services of the isolated cell according to the uplink and downlink configuration in the response message. After the configuration is complete, the isolated cell sends the updated uplink and downlink configuration to the UE it serves and its neighboring cell.
  • the uplink and downlink configuration currently used by the isolated cell and the uplink and downlink configuration that needs to be changed may be isolated.
  • the cell performs the interference control, and determines how to change the uplink and downlink configuration of the isolated cell, which can reduce the interference of different uplink and downlink configurations, and realize the coexistence of interference of different uplink and downlink configuration cells, so that the uplink and downlink configurations of the isolated cell are more reasonable, and meet different uplink and downlink Demand for traffic, low spectrum resources and low cost.
  • FIG. 5 is a schematic diagram of a wireless network configuration apparatus according to an embodiment of the present invention. As shown in FIG. 5, the wireless network configuration apparatus includes:
  • the request receiving module 1 1 is configured to receive an uplink and downlink configuration that needs to be changed and sent by an isolated cell in an isolated cell cluster, where the isolated cell cluster is one or more cells that provide local continuous coverage;
  • the interference control module 13 is configured to determine an uplink and downlink configuration that is allowed to be used by the isolated cell according to an uplink and downlink configuration currently used by the isolated cell, and an uplink and downlink configuration that is required to be changed by the request receiving module 11
  • the isolated cell performs interference control, where the number of associated upper-layer cells directly adjacent to the isolated cell cluster is less than a set threshold;
  • the configuration returning module 15 is configured to return, to the isolated cell, an uplink and downlink configuration that is allowed by the interference control module 13 to allow the isolated cell to be used.
  • the interference control module may perform the uplink and downlink configuration currently used by the isolated cell, and the upper and lower configurations that need to be changed.
  • Configuring the uplink and downlink configuration of the isolated cell, and performing interference control on the isolated cell can reduce the interference of different uplink and downlink configurations, and implement interference coexistence of different uplink and downlink configuration cells, so that the uplink and downlink configurations of the isolated cell are more reasonable. To meet the needs of different uplink and downlink traffic, occupying less spectrum resources and lower costs.
  • FIG. 6 is a schematic diagram of a wireless network configuration apparatus according to another embodiment of the present invention. As shown in FIG. 6, the wireless network configuration apparatus may further include:
  • configuration information of the isolated cell cluster in the coverage of the associated upper layer cell where the configuration information of the isolated cell cluster includes: an initial isolated cell list in the isolated cell cluster ;
  • the interference detection module 23 is connected to the configuration acquisition module 21, and is configured to initiate interference detection on each isolated cell of the isolated cell cluster;
  • the isolated cell list update module 25 is connected to the interference detection module 23, and is configured to isolate the isolated cell from the isolated cell cluster if the detection result of interference to an isolated cell is lower than a set threshold.
  • the cell list is deleted; if the detection result of the interference to an isolated cell is higher than the set threshold, the isolated cell is saved in the isolated cell list corresponding to the isolated cell cluster.
  • the wireless network configuration apparatus may further include:
  • the update notification module 27 is connected to the isolated cell list update module 25, configured to notify the isolated cell of the configuration update information of the isolated cell cluster; and/or, send the configuration update information of the isolated cell cluster to the network side management. node.
  • the interference control module 13 may include:
  • the interference avoidance unit 1 31 is configured to determine, according to an uplink and downlink configuration currently used by the isolated cell, an uplink and downlink configuration that needs to be changed, and a resource condition of the associated upper-layer cell, determine an uplink and downlink configuration that is allowed to be used by the isolated cell, according to The uplink and downlink configuration currently used by the isolated cell and the uplink and downlink configuration used by the isolated cell are used for interference avoidance.
  • the interference cancellation unit is specifically configured to: if the associated upper layer cell is a time division duplex cell, compare an uplink and downlink configuration that is allowed to be used by the isolated cell, and a position of a subframe that is incompatible in an uplink and downlink configuration currently used by the isolated cell, If the associated upper layer cell is a frequency division duplex cell, compare the uplink and downlink configuration used by the isolated cell and the uplink and downlink configuration currently used by the isolated cell; If the number of downlink subframes in the uplink and downlink configuration used by the isolated cell increases, the associated upper-layer cell determines, according to the uplink traffic, whether the idle uplink subframe can be vacant as the downlink subframe of the time-division duplex cell, and if so, Determining, according to the number of idle uplink subframes, the number of downlink subframes allowed to be increased; if the number of uplink subframes in the uplink and downlink configuration used by the isolated cell is allowed to increase, allowing the isolated cell to change the uplink
  • the interference cancellation unit 1 32 is configured to determine an uplink and downlink control channel that needs to be changed as an uplink and downlink configuration that is allowed to be used by the isolated cell, and acquire configuration information of an uplink and downlink control channel that needs to be changed in the isolated cell, according to the isolated cell.
  • the uplink and downlink configurations currently used, the uplink and downlink configurations that need to be changed, and the configuration information of the uplink and downlink control channels that need to be changed are used for interference cancellation.
  • the interference cancellation unit is specifically configured to: if the associated upper layer cell is a time division duplex cell, the receiver of the associated upper layer cell identifies the user equipment UE of the isolated cell in an uplink control signal. a signal of the channel, the signal of the uplink control channel is from a subframe position where the uplink and downlink configurations are incompatible, and the signal of the UE from the isolated cell in the uplink control channel is subtracted from the received total signal, and the signal is obtained from the Corresponding to the useful signal of the UE of the upper layer cell; or, the receiver of the UE associated with the upper layer cell identifies the signal of the isolated cell on the downlink control channel, and the signal of the downlink control channel is from a subframe position that is incompatible with the uplink and downlink configuration Up, subtracting, from the received signal, a signal from the isolated cell in a downlink control channel, to obtain a useful signal from the associated upper layer cell; or if the associated upper layer cell is a frequency division duplex cell, The receiver of the
  • the signal from the isolated cell in the downlink control channel is subtracted from the received total signal to obtain a useful signal from the associated macro cell; wherein the uplink and downlink configurations are incompatible subframe positions. It is determined by the uplink and downlink configuration currently used by the isolated cell and the uplink and downlink configuration that needs to be changed.
  • the interference control module in the embodiment of the present invention may include an interference cancellation unit and an interference avoidance unit, and may also include one of an interference cancellation unit and an interference avoidance unit.
  • the interference control module may perform the uplink and downlink configuration currently used by the isolated cell, and the upper and lower configurations that need to be changed.
  • Configuring the uplink and downlink configuration of the isolated cell, and performing interference control on the isolated cell can reduce the interference of different uplink and downlink configurations, and implement interference coexistence of different uplink and downlink configuration cells, so that the uplink and downlink configurations of the isolated cell are more reasonable. To meet the needs of different uplink and downlink traffic, occupying less spectrum resources and lower costs.
  • FIG. 8 is a schematic diagram of a wireless network configuration apparatus according to another embodiment of the present invention.
  • the wireless network configuration apparatus includes:
  • the sending module 31 is configured to determine, according to the current uplink and downlink service requirements, an uplink and downlink configuration that needs to be changed, and send the uplink and downlink configuration that needs to be changed in the isolated cell to the associated upper-layer cell to which the isolated cell cluster belongs to the isolated cell, where the isolated cell
  • the cluster is a one or a plurality of cells that provide local continuous coverage, and the number of the related upper layer cells directly adjacent to the isolated cell cluster is less than a set threshold
  • the configuration module 33 is connected to the sending module 31, and is configured to be used according to the association.
  • the uplink and downlink configuration that is allowed to be used by the isolated cell returned by the upper-layer cell, and the configuration of the uplink and downlink services of the isolated cell.
  • the uplink and downlink configuration currently used by the isolated cell and the uplink and downlink configuration that needs to be changed may be used. Determining how to change the uplink and downlink configuration of the isolated cell, and performing interference control on the isolated cell, which can reduce the interference of different uplink and downlink configurations, and realize the interference coexistence of different uplink and downlink configuration cells, so that the configuration module of the isolated cell can uplink and downlink
  • the line configuration is more reasonable, meets the requirements of different uplink and downlink traffic, consumes less spectrum resources and has low cost.
  • FIG. 9 is a schematic diagram of a wireless network configuration apparatus according to another embodiment of the present invention. As shown in FIG. 9, the wireless network configuration apparatus may further include:
  • the sending module 31 is further configured to send the uplink and downlink configuration currently used by the isolated cell to the user equipment UE and the neighboring cell served by the isolated cell, where the neighboring cell includes the isolated cell attribution An isolated cell other than the isolated cell that initiated the request and an associated upper layer cell of the isolated cell cluster in the cell cluster.
  • the wireless network configuration apparatus may further include:
  • the configuration obtaining module 35 is configured to acquire and save the configuration information of the associated upper layer cell, where the configuration information of the associated upper layer cell includes: an initial associated upper layer cell list;
  • An interference detection module 36 connected to the configuration acquisition module 35, for initiating the isolation Interference detection of each associated upper layer cell of the isolated cell cluster to which the cell belongs;
  • the associated upper layer cell list updating module 37 is connected to the interference detecting module 36, and configured to save the one associated upper layer cell to the initial if the detection result of interference to an associated upper layer cell is higher than a set threshold Associated with the upper-layer cell list; if the detection result of interference to an associated upper-layer cell is lower than a set threshold, the one associated upper-layer cell is deleted from the initial associated upper-layer cell list.
  • the wireless network configuration apparatus may further include:
  • the isolated cell list update module 38 is configured to be connected to the interference detection module 36, and configured to notify the associated upper layer cell according to the isolated cell interference if the configuration information of the associated upper layer cell further includes an initial isolated cell list.
  • the detection result updates the isolated cell list saved by the associated upper layer cell; wherein the interference detection module 36 can perform interference detection on the isolated cell, and the isolated cell list update module 38 updates the saved isolated cell list according to the result of detecting the isolated cell interference.
  • the wireless network configuration apparatus may further include:
  • the update notification module 39 is connected to the associated upper-layer cell list update module 38, and configured to send the configuration update information of the one associated upper-layer cell to the network-side management node, if the update of the one associated upper-layer cell is detected.
  • the uplink and downlink configuration currently used by the isolated cell and the uplink and downlink configuration that needs to be changed may be used. Determining how to change the uplink and downlink configuration of the isolated cell, and performing interference control on the isolated cell, which can reduce the interference of different uplink and downlink configurations, and realize the interference coexistence of different uplink and downlink configuration cells, so that the configuration module of the isolated cell can uplink and downlink
  • the line configuration is more reasonable, meets the requirements of different uplink and downlink traffic, consumes less spectrum resources and has low cost.
  • FIG. 10 is a schematic diagram of a wireless network configuration system according to another embodiment of the present invention.
  • the wireless network configuration system includes: an associated upper layer cell 51 and an isolated cell cluster 53,
  • the isolated cell cluster 53 is one or more cells that provide local continuous coverage, and the number of the associated upper layer cells 51 that are directly adjacent to the isolated cell cluster 53 is less than a set threshold;
  • FIG. 6 and FIG. 7 corresponding to the wireless network configuration apparatus of any structure provided by the embodiment of the present invention; each isolated cell 531 of the isolated cell cluster 53 may adopt any of the embodiments provided by the embodiment of the present invention corresponding to FIG. 8 and FIG. A structured wireless network configuration device.
  • the uplink and downlink configuration currently used by the isolated cell and the uplink and downlink configuration that needs to be changed may be determined.
  • the uplink and downlink configuration of the isolated cell performs interference control on the isolated cell, which can reduce the interference of different uplink and downlink configurations, and realize the coexistence of interference of different uplink and downlink configuration cells, so that the uplink and downlink configurations of the isolated cell are more reasonable and meet different uplink and downlink services.

Description

无线网络配置方法、 装置和系统 本申请要求于 2011 年 5 月 12 日提交中国专利局、 申请号为 201110122632.1、 发明名称为"无线网络配置方法、 装置和系统"的中国专利 申请的优先权, 其全部内容通过引用结合在本申请中。 技术领域 本发明实施例涉及通信技术领域, 尤其涉及一种无线网络配置方法、 装置和系统。
背景技术 在时分( Time Divi s ion; 筒称: TD ) 系统中,采用不同的上下行时隙 配置, 可以支持不同的上下行业务量的需求。 TD长期演进(TD Long Term Evolut ion; 筒称: TD-LTE )是一种应用于移动高宽带的无线通信标准, TD-LTE 系统中的时分双工 ( Time Div i s ion Duplexing; 筒称: TDD )上下 行配置包括多种不同的上下行配置, 可以满足多种的不同的上下行比例的 业务需求, 这是与频分双工( Frequency Divi s ion Duplexing; 筒称: FDD ) 相比, TDD的一个重要的优点。
但是, 在邻频或同频的 TDD 系统中, 如果相邻的小区采用不同的上下 行配置, 在不相同上下行配置的时隙(即不兼容时隙), 将发生严重的上下 行干扰。
发明内容 本发明提供一种无线网络配置方法、 装置和系统, 用以解决现有技术 中不同上下行配置干扰严重的缺陷, 实现降低不同上下行配置的干扰。
本发明实施例提供一种无线网络配置方法, 包括: 接收孤立小区簇中的孤立小区发送的需要变更的上下行配置, 所述孤 立小区簇为提供局部连续覆盖的一个或多个小区;
根据所述孤立小区当前使用的上下行配置和需要变更的上下行配置, 确定允许所述孤立小区使用的上下行配置, 对所述孤立小区进行干扰控制; 向所述孤立小区返回允许所述孤立小区使用的上下行配置。
本发明实施例还提供一种无线网络配置方法, 包括:
根据当前的上下行的业务需求确定需要变更的上下行配置, 向孤立小 区归属的孤立小区簇的关联上层小区发送所述孤立小区需要变更的上下行 配置, 所述孤立小区簇为提供局部连续覆盖的一个或多个小区;
根据关联上层小区返回的允许所述孤立小区使用的上下行配置, 进行 所述孤立小区的上下行业务的配置。
本发明实施例还提供一种无线网络配置装置, 包括:
请求接收模块, 用于接收孤立小区簇中的孤立小区发送的需要变更的 上下行配置, 所述孤立小区簇为提供局部连续覆盖的一个或多个小区; 干扰控制模块, 用于根据所述孤立小区当前使用的上下行配置和所述 请求接收模块接收到的需要变更的上下行配置, 确定允许所述孤立小区使 用的上下行配置, 对所述孤立小区进行干扰控制;
配置返回模块, 用于向所述孤立小区返回所述干扰控制模块确定的允 许所述孤立小区使用的上下行配置。
本发明实施例还提供一种无线网络配置装置, 包括:
发送模块, 用于根据当前的上下行的业务需求确定需要变更的上下行 配置, 向孤立小区归属的孤立小区簇的关联上层小区发送所述孤立小区需 要变更的上下行配置, 所述孤立小区簇为提供局部连续覆盖的一个或多个 小区;
配置模块, 与所述发送模块连接, 用于根据关联上层小区返回的允许 所述孤立小区使用的上下行配置, 进行所述孤立小区的上下行业务的配置。 本发明实施例还提供一种无线网络配置系统, 包括:
关联上层小区和孤立小区簇, 所述孤立小区簇为提供局部连续覆盖的 一个或多个小区, 所述孤立小区簇直接相邻的关联上层小区的个数小于设 定阈值;
所述关联上层小区采用本发明实施例提供的任一无线网络配置装置; 所述孤立小区簇的各个孤立小区采用本发明实施例提供的任一无线网 络配置装置。
本发明提供的无线网络配置方法、 装置和系统, 关联上层小区接收到 时分复用配置变更请求后, 可以根据孤立小区当前使用的上下行配置、 需 要变更的上下行配置, 确定如何变更孤立小区的上下行配置, 对孤立小区 进行干扰控制, 可以降低不同上下行配置的干扰, 实现不同配置小区的干 扰共存, 使孤立小区的上下配置更合理, 满足不同上下行业务量的需求。
附图说明 为了更清楚地说明本发明实施例或现有技术中的技术方案, 下面将对 实施例或现有技术描述中所需要使用的附图作一筒单地介绍, 显而易见地, 下面描述中的附图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为本发明一个实施例中 TDD模式或 FDD+TDD模式的异构网络架构 中孤立小区簇的示意图;
图 lb为本发明一个实施例中 TDD模式或 FDD+TDD模式的异构网络架构 中非孤立小区簇的示意图;
图 l c为本发明一个实施例提供的无线网络配置方法的流程图; 图 2为本发明另一实施例提供的无线网络配置方法的流程图; 图 3为本发明另一实施例提供的无线网络配置方法的流程图; 图 4a为本发明另一实施例提供的无线网络配置方法中配置管理的信令 流程图;
图 4b为本发明另一实施例提供的无线网络配置方法中上下行配置更新 的信令流程图;
图 4c为本发明另一实施例提供的无线网络配置方法中关联宏小区和孤 立小区上的上下行配置的示意图;
图 4d 为本发明另一实施例提供的无线网络配置方法中关联宏小区为
FDD小区且对应的孤立小区在 FDD的 UL频段满足 TDD兼容配置的示意图; 图 4e 为本发明另一实施例提供的无线网络配置方法中关联宏小区为
FDD且对应的孤立小区在 FDD的 UL频段不满足 TDD兼容配置的示意图; 图 5为本发明一个实施例提供的无线网络配置装置的示意图; 图 6为本发明另一实施例提供的无线网络配置装置的示意图; 图 7为本发明另一实施例提供的无线网络配置装置的示意图; 图 8为本发明另一实施例提供的无线网络配置装置的示意图; 图 9为本发明另一实施例提供的无线网络配置装置的示意图; 图 1 0为本发明另一实施例提供的无线网络配置系统的示意图。 具体实施方式 为使本发明实施例的目的、 技术方案和优点更加清楚, 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作出创造性劳动前提 下所获得的所有其他实施例, 都属于本发明保护的范围。
表 1为 TD长期演进 ( TD Long Term Evo lut ion; 筒称: TD-LTE ) 系统 中的时分双工 (Time Div i s ion Dup l ex ing; 筒称: TDD )上下行配置: 表 1 TD-LTE系统中的 TDD上下行配置
Figure imgf000007_0001
表 1 中共包含 7种不同的上下行配置, 可以满足 7种的不同的上下行 比例的业务需求。 例如: 假设频段 A的 TDD上下行配置为 DL: UL=2: 3 (配置 - 0 ), 频段 B的 TDD上下行配置为 DL: UL=3: 2 (配置 _ 1 ), 频段 C的 TDD上下 行配置为 DL: UL=4: 1 (配置 _2 )。 在上行业务资源需求量大的区域, 可以使 用频段 A布网; 在下行业务资源需求量大的区域, 可以使用频段 C布网; 对于上下行基本均衡、 下行业务资源需求量大的区域, 可以使用频段 B布 网。
由于, 在邻频或同频的 TDD 系统中, 如果相邻的小区采用不同的上下 行配置, 在不相同上下行配置的时隙(即不兼容时隙), 将发生严重的上下 行干扰。 例如: 邻频或同频的相邻小区 - 1和小区 -2 , 小区 - 1采用表 1中的 配置 "0" , 而小区 _2采用表 1中的配置 "2" , 如表 1所示, 在上下行配置 不一致的子帧(时隙): " 3、 4、 8、 9" 子帧上, 小区 - 1 和小区 _2之间具有 很大的上下行的干扰。 虽然 TDD 系统布网采用全网同步, 并且全网配置一 致, 可以筒单有效的解决 TDD系统的上下行干扰的问题, 但却使 TDD系统 丧失了灵活配置上下行资源, 以满足不同上下行业务量需求的优点。 本发明实施例的主要思想是: 可以根据孤立小区簇中的某一孤立小区 当前使用的上下行配置、 需要变更的上下行配置, 确定如何变更孤立小区 的上下行配置, 对孤立小区进行干扰控制, 实现不同上下行配置小区的干 扰共存, 使孤立小区的上下行配置更合理, 满足不同上下行业务量的需求 图 la为本发明一个实施例中 TDD模式或 FDD+TDD模式的异构网络架构 中孤立小区簇( I solated Cel l s ) 的示意图, 图 lb为本发明一个实施例中 TDD模式或 FDD+TDD模式的异构网络架构中非孤立小区簇的示意图。 其中, 在 TDD模式的同频异构网络中, 层 1和层 1的小区均使用相同频率的 TDD 小区; 在 FDD+TDD的异构网络中, FDD的下行链路( DL )和 FDD的上行链路 ( UL )组成了层 1的覆盖, FDD 上行链路 ( UL )提供了 TDD模式的层 2覆 盖, 例如: 低功率节点 (low power Node; 筒称: LPN)的覆盖。 其中层 1 用于提供网络的广覆盖, 如果层 1为 TDD制式的小区部署的覆盖层, 该覆 盖层需要根据覆盖区域业务的上下行的业务量, 进行 TDD 小区的上下行的 配置。 层 2主要用于提供额外的网络容量, 满足特定区域的容量需求, 层 2 由于覆盖区域的不同, 不同区域的上下行业务量的需求可能不同, 会产生 不同上下行配置的需求, 并且由于层 2 的小区主要用于提高容量, 这些小 区主要的形态为 LPN。 层 2的覆盖范围方式有两种类型: 图 la为非连续覆 盖方式, 图 lb为连续覆盖方式。 在实际的网络部署中, 异构网络大部分是 图 la所示的非连续覆盖方式。 在非连续覆盖的情况下, 可以根据层 2的一 个或多个连续覆盖的 LPN 的覆盖范围, 本发明实施例中以宏小区为例进行 说明, 例如: 根据直接相邻的上层小区即关联上层小区的个数, 确定提供 局部连续覆盖的一个或多个小区为孤立小区簇或非孤立小区簇, 其中, 微 小区的上层小区为宏小区, 微微小区的上层小区为微小区或宏小区, 如果 提供局部连续覆盖的一个或多个小区的直接相邻的宏小区的个数小于设定 的个数 N ( N的取值通常可以为 2 ~ 3,或者其他个位数,不选择很大的数值, 以便进行干扰控制 ), 则认为该提供局部连续覆盖的一个或多个小区为孤立 小区簇, 否则, 如果提供局部连续覆盖的一个或多个小区直接相邻的宏小 区的个数大于 N (例如: 30个), 则为非孤立小区簇; 与孤立小区簇直接相 邻的上层小区则为该孤立小区簇的关联上层小区。
本发明实施例中网络侧管理节点例如: 0AM、 无线资源管理 (Radio resource management ;筒称: RRM )、无线环境地图 ( Radio envi ro謹 ent Map; 筒称: REM )、 核心网 (Core network; 筒称: CN )或无线接入节点 (Radio acces s Node; 筒称: RAN ) 等, 可以识别需要进行不同上下行配置的小区 的网络部署的范围, 即某一个或几个小区是否为孤立小区簇, 该部署范围 即可能因为上下行配置的不同而引起干扰的区域。 其中, 对提供局部覆盖 的小区的识别,可以通过操作、管理和维护设备( Operat ion Admini s trat ion and Ma intenance; 筒称: 0AM )等网络侧管理节点的配置实现。 如: 在 0AM 上可以体现运营商对于网络的部署, 根据不同小区网络覆盖的部署范围关 系, 以确定一个小区属于孤立小区簇还是非孤立小区簇。 如果是孤立小区 簇, 可以进行不同的上下行配置, 需要和其影响区域的小区进行资源协调 管理, 进行干扰规避或者干扰消除; 如果是非孤立小区簇, 网络侧可以考 虑是否据其业务需要的比例进行整网的上下行配置的修改, 以及如何进行 爹改, 避免干扰。
图 l c为本发明一个实施例提供的无线网络配置方法的流程图,如图 lc 所示, 该无线网络配置方法可以包括:
101、 接收孤立小区簇中的孤立小区需要变更的上下行配置, 所述孤立 小区簇为提供局部连续覆盖的一个或多个小区。
102、 根据所述孤立小区当前使用的上下行配置和需要变更的上下行配 置, 确定允许所述孤立小区使用的上下行配置, 对所述孤立小区进行干扰 控制。
103、 向所述孤立小区返回允许所述孤立小区使用的上下行配置。
其中,孤立小区簇、孤立小区及其关联上层小区的定义可以参见图 la、 图 l b及其相关描述。
本实施例关联上层小区接收到孤立小区簇中的某一孤立小区发送的需 要变更的上下行配置后, 可以根据该孤立小区当前使用的上下行配置、 需 要变更的上下行配置, 确定如何变更所述孤立小区的上下行配置, 对孤立 小区进行干扰控制, 可以降低不同上下行配置的干扰, 实现不同上下行配 置小区的干扰共存, 使孤立小区的上下行配置更合理, 满足不同上下行业 务量的需求。
图 2 为本发明另一实施例提供的无线网络配置方法的流程图, 如图 2 所示, 该无线网络配置方法可以包括:
201、 关联上层小区可以根据干扰检测的结果, 更新收到的初始的孤立 小区列表, 具体可以包括:
获取并保存所述关联上层小区覆盖范围内的孤立小区簇的配置信息; 其中, 网络侧管理节点可以将其保存的某一关联上层小区覆盖范围内的各 个孤立小区簇的配置信息发送给该关联上层小区, 其中, 某一个孤立小区 簇的配置信息一般可以包括: 孤立小区簇中的各个 LPN 的列表, 即孤立小 区列表。 此外, 孤立小区簇的配置信息中还可以包括: "是否是孤立小区的 指示", 以指示某一小区是否是孤立小区, 当然, 也可以预先设定某一小区 是否是孤立小区, 这样, 就无需携带 "是否是孤立小区的指示" 了。 此外, 孤立小区簇的配置信息中还可以关联上层小区列表, 因此, 该无线网络配 置方法还可以包括:
根据所述是否是孤立小区的指示, 确定一个小区是否为孤立小区; 和 / 或
根据所述关联上层小区列表, 确定与一个小区直接相邻的关联上层小 区。
其中, 网络侧管理节点可以为: 0AM、 RRM, REM, CN或 RAN等。
可选地, 关联上层小区可以启动对所述孤立小区簇的各个孤立小区的 干扰检测; 如果对一个孤立小区干扰的检测结果低于设定的阈值, 则将所 述一个孤立小区从所述孤立小区簇对应的孤立小区列表中删除; 若对一个 孤立小区干扰的检测结果高于设定的阈值, 则将所述一个孤立小区保存到 所述孤立小区簇对应的孤立小区列表中。 然后, 可选地, 关联上层小区可 以将孤立小区簇的配置更新信息通知该孤立小区, 以使该孤立小区知道自 身不对该关联上层小区造成干扰, 其中, 孤立小区簇的配置更新信息既可 以是具体增加或删除的孤立小区的信息, 也可以是更新后的孤立小区列表。 此外, 可选地, 关联上层小区可以将孤立小区簇的配置更新信息发送至网 络侧管理节点, 方便网络侧管理节点进行后续的配置管理。
202、 接收孤立小区簇中的孤立小区需要变更的上下行配置, 所述孤立 小区簇为提供局部连续覆盖的一个或多个小区。
203、 根据所述孤立小区当前使用的上下行配置和需要变更的上下行配 置, 确定允许所述孤立小区使用的上下行配置, 对所述孤立小区进行干扰 控制;
其中, 203进行干扰控制具体可以包括以下两种方式:
方式一、 根据所述孤立小区当前使用的上下行配置、 需要变更的上下 行配置以及所述关联上层小区自身的资源情况, 确定允许所述孤立小区使 用的上下行配置, 根据所述孤立小区当前使用的上下行配置、 允许所述孤 立小区使用的上下行配置进行干扰规避, 具体可以包括:
其中, 根据所述孤立小区当前使用的上下行配置、 需要变更的上下行 配置以及所述关联上层小区自身的资源情况, 确定允许所述孤立小区使用 的上下行配置具体可以包括:
若关联上层小区自身的资源情况资源完全支持需要变更的上下行配 置, 则允许所述孤立小区使用的上下行配置变更为所述需要变更的上下行 配置; 或
若关联上层小区自身的资源情况资源部分支持需要变更的上下行配 置, 则根据需要变更的上下行配置和关联上层小区自身的资源情况, 选择 允许所述孤立小区使用的上下行配置; 或 若关联上层小区自身的资源情况资源不支持需要变更的上下行配置, 则允许所述孤立小区使用的上下行配置保持为所述孤立小区当前使用的上 下行配置。
然后, 根据所述孤立小区当前使用的上下行配置、 允许所述孤立小区 使用的上下行配置进行干扰规避具体可以包括:
若所述关联上层小区为时分双工小区, 比较允许所述孤立小区使用的 上下行配置和所述孤立小区当前使用的上下行配置中不兼容的子帧的位 置, 置空所述不兼容的子帧; 或
若所述关联上层小区为频分双工小区, 比较所述允许孤立小区使用的 上下行配置和所述孤立小区当前使用的上下行配置; 若允许所述孤立小区 使用的上下行配置中的下行子帧的个数增加, 则关联上层小区根据上行业 务量, 确定是否具有空闲上行子帧可以空置作为时分双工小区的下行子帧, 如果有, 则根据空闲上行子帧数量, 确定允许增加的下行子帧的个数; 若 允许所述孤立小区使用的上下行配置中的上行子帧的个数增加, 则允许孤 立小区变更上下行配置。
方式二、 将需要变更的上下行控制信道确定为允许所述孤立小区使用 的上下行配置, 获取所述孤立小区需要变更的上下行控制信道的配置信息, 根据所述孤立小区当前使用的上下行配置、 需要变更的上下行配置和需要 变更的上下行控制信道的配置信息, 进行干扰消除, 具体可以包括:
若所述关联上层小区为时分双工小区, 则所述关联上层小区的接收机 识别所述孤立小区的用户设备 UE在上行控制信道的信号, 所述上行控制信 道的信号来自上下行配置不兼容的子帧位置上, 在接收到的总信号中减去 来自所述孤立小区的 UE在上行控制信道的信号, 得到来自所述关联上层小 区的 UE的有用信号; 或, 所述关联上层小区的 UE的接收机识别所述孤立 小区在下行控制信道的信号, 所述下行控制信道的信号来自上下行配置不 兼容的子帧位置上, 在接收到的总信号中减去来自所述孤立小区在下行控 制信道的信号, 得到来自所述关联上层小区的有用信号; 或 若所述关联上层小区为频分双工小区, 所述关联上层小区的接收机在 所述孤立小区的上行子帧位置识别所述孤立小区的 UE在上行控制信道的信 号, 所述上行控制信号来自上下行配置不兼容的子帧位置上, 在接收到的 总信号中减去来自所述孤立小区 UE在上行控制信道的信号, 得到来自所述 关联上层小区的 UE的有用信号; 或, 所述关联上层小区的 UE的接收机在 孤立小区的下行子帧位置识别所述孤立小区在下行控制信道的信号, 所述 下行控制信道来自上下行配置不兼容的子帧位置上, 在接收到的总信号中 减去来自孤立小区在下行控制信道的信号, 得到来自关联宏小区的有用信 其中, 所述上下行配置不兼容的子帧位置由所述孤立小区当前使用的 上下行配置和需要变更的上下行配置确定, 所述关联上层小区识别上下行 配置不兼容的子帧位置具体可以包括以下情况:
若所述关联上层小区为时分双工小区, 则上下行配置不兼容的子帧位 置为需要变更的上下行配置和当前使用的上下行配置中上下行配置不同的 子帧位置;
若所述关联上层小区为频分双工小区, 则上下行配置不兼容的子帧位 置为需要变更的上下行配置和 FDD 当前使用的配置中上下行配置不同的子 帧位置。
204、 向所述孤立小区返回允许所述孤立小区使用的上下行配置。 然后, 该孤立小区可以根据关联上层小区返回的上下行配置对应的具 体配置方式, 进行上下行业务的配置。 为了解决 TDD 系统上下行干扰的问题, 现有技术中一种降低干扰的方 法是, 在频谱资源比较丰富的情况下, 可以在不同频段上部署不同的上下 行配置, 并且在不同区域部署不同的频段, 从而满足不同区域的不同的上 下行业务的需求。 另外, 还可以通过不同的频段的组合, 满足网络的不同 上下行业务比较的需求。 这种通过频域组合的方式实现不同的 TDD 的配置 的方案, 由于不同的频段的频谱间距比较大, 不同频段间的不同的 TDD上 下行配置不会产生干扰。 但是, 这种方案部署网络需要的频谱资源比较多, 需要有多个频段资源才行, 如果只有一个频段则无法工作。 相比而言, 本 发明实施例是在单个频段上实现的, 占用频谱资源少。
现有技术另外一种降低干扰的方法是, 对存在干扰的子帧(时隙), 在 调度上处于低优先级, 尽量不进行调度或在干扰较弱的情况下调度。 这种 方法需要检测不同配置的子帧上的干扰情况, 根据该干扰情况进行调度上 的干扰规避。 但是, 对特定时隙和子帧进行干扰检测, 基于检测结果进行 调度, 是一个动态检测和调度的过程, 需要频繁的检测和信令支持, 实际 应用复杂。 如果在不同配置的子帧上不进行数据的调度, 则可以不进行该 子帧上的干扰检测。 为了实现热点小区的不同上下行需求的业务, 可能导 致大范围内的小区的某些子帧上不进行调度, 对网络的吞吐量的影响大, 实现成本高。 相比而言, 本发明实施例则不需要设置调度优先级, 不会导 致大范围子帧的不调度, 因此, 不影响网络的吞吐量, 实现成本低; 不需 要对所有子帧进行干扰控制, 只需要对孤立小区进行干扰控制, 因此干扰 控制筒单。
本实施例关联上层小区接收到孤立小区簇中的某一孤立小区发送的时 分复用配置变更请求后, 可以根据该孤立小区当前使用的上下行配置、 需 要变更的上下行配置, 确定如何变更所述孤立小区的上下行配置, 对孤立 小区进行干扰控制, 可以降低不同上下行配置的干扰, 实现不同上下行配 置小区的干扰共存, 使孤立小区的上下行配置更合理, 满足不同上下行业 务量的需求。
图 3 为本发明另一实施例提供的无线网络配置方法的流程图, 如图 3 所示, 该无线网络配置方法可以包括:
301、 根据当前的上下行的业务需求确定需要变更的上下行配置, 向孤 立小区归属的孤立小区簇的关联上层小区发送所述孤立小区需要变更的上 下行配置, 所述孤立小区簇为提供局部连续覆盖的一个或多个小区;
在 301 之前, 各个孤立小区可以更新保存的关联上层小区列表, 具体 可以包括:
孤立小区可以获取并保存该孤立小区归属的孤立小区簇的关联上层小 区的配置信息; 具体地, 网络侧管理节点可以将其保存的孤立小区归属的 孤立小区簇的关联上层小区的配置信息发送给该孤立小区, 其中, 孤立小 区收到的关联上层小区的配置信息具体可以包括: 初始的关联上层小区列, 其中, 网络侧管理节点可以为 0AM、 RRM, REM, CN或 RAN。
然后, 该孤立小区可以启动对所述孤立小区归属的孤立小区簇的各个 关联上层小区的干扰检测; 若对一个关联上层小区干扰的检测结果高于设 定的阈值, 则将所述一个关联上层小区保存到所述初始的关联上层小区列 表中; 若对一个关联上层小区干扰的检测结果低于设定的阈值, 则将所述 一个关联上层小区从所述初始的关联上层小区列表中删除。
可选地, 该孤立小区收到的一个关联上层小区的配置信息中还可以包 括初始的孤立小区列表, 此时, 该孤立小区可以通知该一个关联上层小区 根据该孤立小区干扰的检测结果更新该一个关联上层小区保存的孤立小区 列表。
进一步地, 该孤立小区若检测到所述一个关联上层小区的更新, 则将 所述一个关联上层小区的配置更新信息发送至网络侧管理节点。
其中, 关联上层小区在收到该孤立小区的时分复用配置变更请求后, 可以对该孤立小区进行干扰控制 (包括干扰规避或干扰消除) , 确定如何 变更该孤立小区的上下行配置, 并将允许该孤立小区使用的上下行配置返 回给该孤立小区, 具体可以参见上述实施例一的相关描述。
302、 根据所述关联上层小区返回的允许所述孤立小区使用的上下行配 置, 进行所述孤立小区的上下行业务的配置。 进一步地, 该无线网络配置方法还可以包括:
303、 将所述孤立小区当前使用的上下行配置, 发送至所述孤立小区所 服务的用户设备 UE和相邻小区。
其中, 所述相邻小区包括所述孤立小区归属的孤立小区簇中的除了发 起请求的孤立小区之外的其他孤立小区和所述孤立小区簇的关联上层小 区。 这样, 该孤立小区归属的孤立小区簇中的其他孤立小区, 以及该孤立 小区簇的关联上层小区, 都可以获知该孤立小区当前使用的上下行配置, 从而可以使用该上下行配置, 进行各自的上下行业务的配置。
本实施例关联上层小区接收到孤立小区簇中的某一孤立小区发送的时 分复用配置变更请求后, 可以根据该孤立小区当前使用的上下行配置、 需 要变更的上下行配置, 对该孤立小区进行干扰控制, 确定如何变更该孤立 小区的上下行配置, 可以降低不同上下行配置的干扰, 实现不同上下行配 置小区的干扰共存, 使孤立小区的上下行配置更合理, 满足不同上下行业 务量的需求, 占用频谱资源少且成本低。
如果需要在网络侧对孤立小区附近的上层小区做干扰控制(包括干扰 规避或干扰消除), 例如: 孤立小区可以为 LPN, 上层小区可以为宏小区, 0AM 等网络侧管理节点可以将孤立小区簇的配置信息发送给其直接相邻的 宏小区即关联上层小区。 参见图 la , 孤立小区簇 LPN_ 1覆盖区域的直接相 邻的宏小区为宏小区 - 1和宏小区 - 2 , 则 0AM可以向 LPN_ 1的多个孤立小区 所在的基站发送关联上层小区的配置信息, 该关联上层小区的配置信息中 可以包括: 孤立小区簇直接相邻的宏小区的列表, 还可以包括某一小区是 否是孤立小区的指示、 孤立小区列表等信息。 此外, 0AM也可以向孤立小区 簇的直接相邻的宏小区发送孤立小区簇的配置信息, 可以包括: 是否是孤 立小区的指示、 孤立小区列表等, 也可以包括孤立小区簇直接相邻的宏小 区列表。
当网络侧管理节点如: 0AM、 RRM、 REM, CN或 RAN等根据网络不同层的 小区的覆盖范围获得孤立小区簇的配置信息和关联上层小区的配置信息 后, 可以将该孤立小区簇的配置信息发送给孤立小区簇相对应的宏小区, 将关联上层小区的配置信息发送给其覆盖范围内的孤立小区簇中的各个孤 立小区。 当然关联上层小区也可以是非宏小区, 而是覆盖范围比孤立小区 簇大的小区, 本发明实施例中以关联宏小区为例进行说明。 其中, 孤立小 区及其关联宏小区都可以基于干扰检测进行孤立小区列表或宏小区列表的 更新, 更新后的孤立小区列表或宏小区列表可以发送给 0AM或其他网络侧 管理节点如: 匪、 REM, CN或 RAN0
图 4a为本发明另一实施例提供的无线网络配置方法中配置管理的信令 流程图, 如图 4a所示, 网络侧的配置管理具体流程可以包括:
401、 当孤立小区簇中的某一孤立小区从网络侧管理节点获得关联宏小 区的配置信息后, 可以保存关联宏小区的配置信息例如: 关联宏小区列表; 可选的, 关联宏小区的配置信息还可以包括是否是关联宏小区的指示、 孤 立小区列表等。
402、 孤立小区对关联宏小区进行干扰检测, 如果孤立小区检测到的某 一关联宏小区干扰值高于设定的阈值, 则该孤立小区可以向该关联宏小区 通知该孤立小区的存在, 更新该孤立小区保存的关联宏小区列表; 否则, 该孤立小区不需要通知关联宏小区。
403、 当该孤立小区检测到关联宏小区列表的更新后, 可选的, 孤立小 区可以将关联宏小区的更新, 例如: 增加了的某一个关联宏小区或更新后 的关联宏小区列表发送给 0AM或其他网络侧管理节点如: RRM、 REM, CN或 RAN等。
404、 当关联宏小区从网络侧获得孤立小区簇的配置信息后, 可选的, 关联宏小区可以启动对于孤立小区簇中的各个孤立小区的干扰检测。
405、 如果某一孤立小区干扰的检测结果低于设定的阈值, 关联宏小区 将该孤立小区从该关联宏小区保存的孤立小区列表中删除, 并将该删除操 作通知被删除的孤立小区。
406、 可选的, 该关联宏小区也可以将孤立小区的更新例如: 增加的某 一孤立小区的信息或更新后的孤立小区列表发送给 0AM或其他网络侧管理 节点, 如: RRM, REM, CN或 RAN等。
其中, 401-403 是孤立小区更新其保存的关联宏小区列表的过程。
404-406是关联宏小区更新其保存的孤立小区列表的过程。二者可以没有时 序关系。 在孤立小区簇的各个孤立小区完成对关联宏小区列表的更新、 关 联宏小区完成对孤立小区列表的更新后, 孤立小区簇的各个孤立小区保存 着关联宏小区的配置信息, 关联宏小区保存着孤立小区簇的配置信息。 如 果孤立小区簇的某一个孤立小区由于业务的需求, 需要更新其上下行配置, 该孤立小区可以向其关联宏小区发送时分复用上下行配置变更请求, 关联 宏小区根据可以自身的资源情况, 进行资源管理, 避免由于该孤立小区的 上下行配置的修改对其造成干扰。
图 4b为本发明另一实施例提供的无线网络配置方法中上下行配置更新 的信令流程图, 如图 4b所示, 孤立小区簇和相关小区间的上下行配置更新 协商流程具体可以包括:
501、 如果孤立小区簇的某一孤立小区根据自身的上下行的业务需求变 化, 发现需要对当前使用的上下行配置进行更新, 该孤立小区向关联宏小 区发送时分复用配置变更请求, 在该时分复用配置变更请求中指示需要变 更的上下行配置。
其中, 本发明实施例中的上下行配置可以为以下任意一种: LTE系统中 定义的 TDD上下行配置、 Wimax系统的 TDD上下行配置、 TDS-CDMA的 TDD 上下行配置或其他 TDD制式的上下行配置。
以 LTE的 TDD上下行配置为例: 孤立小区簇由一个或多个提供层 2覆 盖的低功率节点(LPN )小区组成, 参见图 l a , 其初始的 TDD上下行配置和 层 1广覆盖的小区相同, 如: 表 1的 TDD上下行配置 _ 1为 DL: UL=3: 2 (S子 帧按照下行子帧计算)。 随着业务的变化, 该孤立小区的上下行业务的配置 可能需要发生改变, 如在该孤立小区覆盖区域内的上行业务有增长, 则该 孤立小区发送时分复用配置变更请求, 请求变更到 TDD上下行配置 _0, 即 DL: UL=2: 3(S子帧按照下行子帧计算)。 这种情况下, 在时分复用配置变更 请求中携带需要变更的 TDD上下行配置, 可以为配置 -0的索引值 "0" ; 或 者直接给出配置 -0 具体的 TDD 上下行的配置方式 "DSUUUDSUUU" 或 者" 1100011000", 其中 "1" 代表下行子帧, "0" 代表上行子帧, 或者
"0011100111" , 其中 "0"代表下行子帧, "1"代表上行子帧。 可选的, 也可以在时分复用配置变更请求中携带变更前的 TDD上下行配置信息, 如 配置 -2 的索引值 "2" 或直接携带配置 _2 具体的的 TDD 上下行配置方式
"DSUDDDSUDD" , 或者" 1101111011", 其中 "1" 代表下行子帧, "0" 代表 上行子帧, 或者 "0010000100" , 其中 "0" 代表下行子帧, "1" 代表上 行子帧。
502、 关联宏小区根据该孤立小区需要变更的上下行配置、 当前使用的 上下行配置以及该关联宏小区自身的资源情况, 可以进行资源管理, 主要 是进行干扰控制, 确定是否允许变更上下行配置, 避免孤立小区簇的上下 行配置的修改对其造成干扰。
如图 4c所示, 为本发明另一实施例提供的无线网络配置方法中关联宏 小区和孤立小区上的上下行配置的示意图, 以图 4c中的配置方式为例, 其 中, 干扰控制可以包括干扰规避和干扰消除, 假设关联宏小区的类型可以 分为时分双工小区或频分双工小区, 干扰控制具体分为以下方式:
方式一、 根据接收到的上下行配置, 进行干扰规避;
如果关联宏小区为时分双工小区, 关联宏小区首先比较孤立小区要求 变更的上下行配置和本小区的上下行配置的不兼容的子帧的位置。 比如关 联宏小区上的 TDD上下行配置为配置 _2时, 如果该孤立小区要求变更到配 置 -0时, 此时每个无线帧中, 关联宏小区有 2个子帧的配置不兼容。 对于 这两个不兼容的子帧的配置, 关联宏小区可以采用的方法为: 关联宏小区 置空该不兼容子帧, 即不在该不兼容子帧上发送任何信令或数据。 该置空 子帧的配置, 可以由关联宏小区通知给其服务的 UE和其相邻的其他的宏小 区。 该通知可以优化本宏小区下的 UE或相邻宏小区下的 UE进行小区的识 别和测量。 关联宏小区取消在该不兼容子帧上的资源的调度。 在这种情况 下, 非基于调度的信号可能会继续发送。 基于调度的信息可以取消发送, 包括信令和数据。 关联宏小区还可以仅对在不兼容的子帧上测量的孤立小 区的信号质量低于设定阈值的用户设备 UE进行资源的调度。 对于在不兼容 的子帧上测量的孤立小区的信号质量高于设定阈值的用户设备 UE则不进行 该不兼容的子帧资源的调度。 以减少孤立小区的不兼容配置带来的干扰。 如果关联宏小区的资源无法进行协调以满足孤立小区的上下行配置的更 新, 则关联宏小区可以根据其自身的资源状况, 更改孤立小区请求的上下 行配置, 例如: 虽然孤立小区请求变更为配置 - 2 , 但仅变更为配置 _ 1。
如果关联宏小区为频分双工小区, 关联宏小区首先将孤立小区需要变 更的上下行配置和孤立小区当前使用上下行配置进行比较, 确定子帧个数 有那些变化。 如: FDD关联宏小区的处理可以包括: 如果孤立小区需要变更 的上下行配置中的下行子帧的个数增加, 如, 当孤立小区配置由配置 - 0要 求变更到配置 - 2 时, 有四个上行子帧需要变更为下行子帧, 即上下行配置 中的下行子帧增加。 则 FDD 关联宏小区统计上行业务量, 确定是否可以空 闲出部分上行子帧以规避孤立小区在该上行子帧上的下行发送带来的干 扰。 如果可以空闲出部分上行子帧, 则该关联宏小区可以根据孤立小区的 请求更新的上下行配置中的下行子帧的位置, 空闲出其对应的上行子帧 (如: 4个); 如果 FDD关联宏小区无法空闲 (如: 仅能空闲出 2个) 出对 应位置上的上行子帧, 则 FDD 关联宏小区可以根据其自身的资源状况, 更 改孤立小区请求的上下行配置 (如: 不采用配置 - 2 , 而采用配置 _ 1 ) 。 如 果孤立小区需要变更的上下行配置中的上行子帧的个数增加, 如, 当孤立 小区配置由配置 - 2要求变更到配置_ 0时, 有四个下行子帧需要变更为上行 子帧。 则 FDD 关联宏小区可以在孤立小区原先的上下行配置中的下行子帧 位置上进行上行资源的调度, 此时 FDD 关联宏小区可以同意孤立小区的上 下行配置变更的请求。
方式二、 根据接收到的上下行配置, 进行干扰消除;
进行干扰消除时, 除了该需要变更的上下行配置外, 孤立小区还需要 将其需要变更的上下行控制信道的配置信息通知给关联宏小区, 以支持关 联宏小区做干扰消除。
如果关联宏小区为时分双工小区, 关联宏小区比较需要变更的上下行 配置和本小区的上下行配置的不兼容的子帧。 关联宏小区需要在该不兼容 子帧上进行干扰消除。 具体可以包括两种情况, 一种情况是: 关联宏小区 的接收机识别来自孤立小区 UE的信号, 然后在接收到的总信号中减去来自 孤立小区 UE的信号, 从而得到来自关联宏小区的 UE的有用信号; 另一种 情况是: 关联宏小区的 UE的接收机识别来自孤立小区的信号, 然后在接收 到的总信号中减去来自孤立小区的信号, 从而得到来自关联宏小区的有用 信号。
如果关联宏小区为频分双工小区, 关联宏小区保存变更的上下行配置, 并获取变更后的上下行配置对应的上下行控制信道的配置信息, 然后根据 该配置信息做干扰消除。 如图 4d所示, 为本发明另一实施例提供的无线网 络配置方法中关联宏小区为 FDD小区且对应的孤立小区在 FDD的 UL频段满 足 TDD兼容配置的示意图; 如图 4e所示, 为本发明另一实施例提供的无线 网络配置方法中关联宏小区为 FDD且对应的孤立小区在 FDD的 UL频段不满 足 TDD兼容配置的示意图, 其中, 在宏小区 _ 1空白帧在的孤立小区对应的 位置进行下行数据发送,宏小区 - 1对应的 LPN为孤立小区, 图 4d中宏小区 - 1及其对应的孤立小区 LPN的上下行配置满足表 1中的配置 _ 0;而图 4e宏 小区 - 1及其对应的孤立小区 LPN上下行配置不满足表 1中的任何一个配置。 首先, 识别出不兼容的子帧位置, 然后对不兼容的子帧位置进行干扰消除, 具体可以包括两种情况, 一种情况是: 关联宏小区的接收机在孤立小区的 上行子帧位置上识别上下行配置不兼容的子帧位置上来自孤立小区 UE的信 号 , 然后在接收到的总信号中减去来自孤立小区 UE的信号 , 从而得到来自 关联宏小区的 UE的有用信号; 另外一种情况是: 关联宏小区的 UE的接收 机在孤立小区的下行子帧位置上识别上下行配置不兼容的子帧位置上来自 孤立小区的信号, 然后在接收到的总信号中减去来自孤立小区的信号, 从 而得到来自关联宏小区的有用信号。
503、 当关联宏小区完成干扰控制后, 可以向孤立小区发送上下行配置 应答, 其中携带允许孤立小区使用的上下行配置。 该上下行配置可以是之 前孤立小区在时分复用配置变更请求中携带的上下行配置, 也可以是关联 宏小区更改的上下行配置。 该上下行配置的表示方式可以为表 1 中的某一 配置 X , 或者直接给出具体的上下行配置方式。 如前 501所述, 不再赘述。
504、 当孤立小区收到关联宏小区的上下行配置应答后, 孤立小区按照 应答消息中的上下行配置, 进行孤立小区的上下行业务的配置。 配置完成 后, 孤立小区将更新后的上下行配置发送给其服务的 UE和其相邻的小区。
本实施例关联上层小区接收到孤立小区簇中的某一孤立小区发送的 TDD 时分复用配置变更请求后, 可以根据该孤立小区当前使用的上下行配 置、 需要变更的上下行配置, 对该孤立小区进行干扰控制, 确定如何变更 该孤立小区的上下行配置, 可以降低不同上下行配置的干扰, 实现不同上 下行配置小区的干扰共存, 使该孤立小区的上下行配置更合理, 满足不同 上下行业务量的需求, 占用频谱资源少且成本低。
图 5 为本发明一个实施例提供的无线网络配置装置的示意图, 如图 5 所示, 该无线网络配置装置包括:
请求接收模块 1 1 , 用于接收孤立小区簇中的孤立小区发送的需要变更 的上下行配置, 所述孤立小区簇为提供局部连续覆盖的一个或多个小区; 干扰控制模块 1 3 , 用于根据所述孤立小区当前使用的上下行配置、 所 述请求接收模块 11接收到的需要变更的上下行配置, 确定允许所述孤立小 区使用的上下行配置, 对所述孤立小区进行干扰控制, 其中, 所述孤立小 区簇直接相邻的关联上层小区的个数小于设定阈值;
配置返回模块 15 ,用于向所述孤立小区返回所述干扰控制模块 1 3确定 的允许所述孤立小区使用的上下行配置。
本实施例中各个模块的工作流程和工作原理参见上述各方法实施例中 的描述, 在此不再赘述。
本实施例关联上层小区的请求接收模块接收到孤立小区簇中的某一孤 立小区发送的时分复用配置变更请求后, 干扰控制模块可以根据该孤立小 区当前使用的上下行配置、 需要变更的上下行配置, 确定如何变更所述孤 立小区的上下行配置, 对孤立小区进行干扰控制, 可以降低不同上下行配 置的干扰, 实现不同上下行配置小区的干扰共存, 使孤立小区的上下行配 置更合理, 满足不同上下行业务量的需求, 占用频谱资源少且成本低。
图 6 为本发明另一实施例提供的无线网络配置装置的示意图, 如图 6 所示, 在上述实施例的基础上, 该无线网络配置装置还可以包括:
配置获耳 ^莫块 21 , 用于获取并保存所述关联上层小区覆盖范围内的孤 立小区簇的配置信息, 所述孤立小区簇的配置信息包括: 所述孤立小区簇 中初始的孤立小区列表;
干扰检测模块 23 , 与所述配置获取模块 21连接, 用于启动对所述孤立 小区簇的各个孤立小区的干扰检测;
孤立小区列表更新模块 25 , 与所述干扰检测模块 23连接, 用于如果对 一个孤立小区干扰的检测结果低于设定的阈值, 则将所述一个孤立小区从 所述孤立小区簇对应的孤立小区列表中删除; 若对一个孤立小区干扰的检 测结果高于设定的阈值, 则将所述一个孤立小区保存到所述孤立小区簇对 应的孤立小区列表中。 进一步地, 该无线网络配置装置还可以包括:
更新通知模块 27 , 与所述孤立小区列表更新模块 25连接, 用于将孤立 小区簇的配置更新信息通知所述一个孤立小区; 和 /或, 将孤立小区簇的配 置更新信息发送至网络侧管理节点。
再进一步地, 如图 7 所示, 为本发明另一实施例提供的无线网络配置 装置的示意图, 干扰控制模块 1 3可以包括:
干扰规避单元 1 31 , 用于根据所述孤立小区当前使用的上下行配置、 需 要变更的上下行配置以及所述关联上层小区自身的资源情况, 确定允许所 述孤立小区使用的上下行配置, 根据所述孤立小区当前使用的上下行配置、 允许所述孤立小区使用的上下行配置进行干扰规避。
干扰消除单元具体用于若所述关联上层小区为时分双工小区, 比较允 许所述孤立小区使用的上下行配置和所述孤立小区当前使用的上下行配置 中不兼容的子帧的位置, 置空所述不兼容的子帧; 或, 若所述关联上层小 区为频分双工小区, 比较所述允许孤立小区使用的上下行配置和所述孤立 小区当前使用的上下行配置; 若允许所述孤立小区使用的上下行配置中的 下行子帧的个数增加, 则关联上层小区根据上行业务量, 确定是否具有空 闲上行子帧可以空置作为时分双工小区的下行子帧, 如果有, 则根据空闲 上行子帧数量, 确定允许增加的下行子帧的个数; 若允许所述孤立小区使 用的上下行配置中的上行子帧的个数增加, 则允许孤立小区变更上下行配 置;
干扰消除单元 1 32 ,用于将需要变更的上下行控制信道确定为允许所述 孤立小区使用的上下行配置, 获取所述孤立小区需要变更的上下行控制信 道的配置信息, 根据所述孤立小区当前使用的上下行配置、 需要变更的上 下行配置和需要变更的上下行控制信道的配置信息, 进行干扰消除。
所述干扰消除单元具体用于若所述关联上层小区为时分双工小区, 则 所述关联上层小区的接收机识别所述孤立小区的用户设备 UE在上行控制信 道的信号, 所述上行控制信道的信号来自上下行配置不兼容的子帧位置上, 在接收到的总信号中减去来自所述孤立小区的 UE在上行控制信道的信号, 得到来自所述关联上层小区的 UE的有用信号; 或, 所述关联上层小区的 UE 的接收机识别所述孤立小区在下行控制信道的信号, 所述下行控制信道的 信号来自上下行配置不兼容的子帧位置上, 在接收到的总信号中减去来自 所述孤立小区在下行控制信道的信号, 得到来自所述关联上层小区的有用 信号; 或若所述关联上层小区为频分双工小区, 所述关联上层小区的接收 机在所述孤立小区的上行子帧位置识别所述孤立小区的用户设备 UE在上行 控制信道的信号, 所述上行控制信道的信号来自上下行配置不兼容的子帧 位置上, 在接收到的总信号中减去来自所述孤立小区 UE在上行控制信道的 信号, 得到来自所述关联上层小区的 UE的有用信号; 或, 所述关联上层小 区的 UE的接收机在孤立小区的下行子帧位置所述孤立小区在下行控制信道 的信号, 所述下行控制信道的信号来自上下行配置不兼容的子帧位置上, 在接收到的总信号中减去来自孤立小区在下行控制信道的信号, 得到来自 关联宏小区的有用信号; 其中, 所述上下行配置不兼容的子帧位置由孤立 小区当前使用的上下行配置和需要变更的上下行配置确定。
本发明实施例中的干扰控制模块可以包含干扰消除单元与干扰规避单 元, 也可以包括干扰消除单元和干扰规避单元二者之一。
本实施例关联上层小区的请求接收模块接收到孤立小区簇中的某一孤 立小区发送的时分复用配置变更请求后, 干扰控制模块可以根据该孤立小 区当前使用的上下行配置、 需要变更的上下行配置, 确定如何变更所述孤 立小区的上下行配置, 对孤立小区进行干扰控制, 可以降低不同上下行配 置的干扰, 实现不同上下行配置小区的干扰共存, 使孤立小区的上下行配 置更合理, 满足不同上下行业务量的需求, 占用频谱资源少且成本低。
图 8 为本发明另一实施例提供的无线网络配置装置的示意图, 如图 8 所示, 该无线网络配置装置包括: 发送模块 31 , 用于根据当前的上下行的业务需求确定需要变更的上下 行配置, 向孤立小区归属的孤立小区簇的关联上层小区发送所述孤立小区 需要变更的上下行配置, 所述孤立小区簇为提供局部连续覆盖的一个或多 个小区, 所述孤立小区簇直接相邻的相关上层小区个数小于设定阈值; 配置模块 33 , 与所述发送模块 31连接, 用于根据所述关联上层小区返 回的允许所述孤立小区使用的上下行配置, 进行所述孤立小区的上下行业 务的配置。
本实施例中各个模块的工作流程和工作原理参见上述各方法实施例中 的描述, 在此不再赘述。
本实施例关联上层小区的接收到孤立小区簇中的某一孤立小区的发送 模块发送的时分复用配置变更请求后, 可以根据该孤立小区当前使用的上 下行配置、 需要变更的上下行配置, 确定如何变更所述孤立小区的上下行 配置, 对孤立小区进行干扰控制, 可以降低不同上下行配置的干扰, 实现 不同上下行配置小区的干扰共存, 使孤立小区的配置模块对上下行业务的 上下行配置更合理, 满足不同上下行业务量的需求, 占用频谱资源少且成 本低。
图 9 为本发明另一实施例提供的无线网络配置装置的示意图, 如图 9 所示, 在上述实施例的基础上, 该无线网络配置装置还可以包括:
所述发送模块 31还用于将所述孤立小区当前使用的上下行配置, 发送 至所述孤立小区所服务的用户设备 UE和相邻小区, 所述相邻小区包括所述 孤立小区归属的孤立小区簇中的除了发起请求的孤立小区之外的其他孤立 小区和所述孤立小区簇的关联上层小区。
进一步地, 该无线网络配置装置还可以包括:
配置获取模块 35 , 用于获取并保存所述关联上层小区的配置信息, 所 述关联上层小区的配置信息中包括: 初始的关联上层小区列表;
干扰检测模块 36 , 与所述配置获取模块 35连接, 用于启动对所述孤立 小区归属的孤立小区簇的各个关联上层小区的干扰检测;
关联上层小区列表更新模块 37 , 与所述干扰检测模块 36连接, 用于若 对一个关联上层小区干扰的检测结果高于设定的阈值, 则将所述一个关联 上层小区保存到所述初始的关联上层小区列表中; 若对一个关联上层小区 干扰的检测结果低于设定的阈值, 则将所述一个关联上层小区从所述初始 的关联上层小区列表中删除。
再进一步地, 该无线网络配置装置还可以包括:
孤立小区列表更新模块 38 , 与所述干扰检测模块 36连接, 用于若所述 一个关联上层小区的配置信息中还包括初始的孤立小区列表, 则通知该一 个关联上层小区根据该孤立小区干扰的检测结果更新该一个关联上层小区 保存的孤立小区列表; 其中, 干扰检测模块 36可以对孤立小区进行干扰检 测, 孤立小区列表更新模块 38根据对孤立小区干扰检测的结果, 更新保存 的孤立小区列表。
再进一步地, 该无线网络配置装置还可以包括:
更新通知模块 39 , 与所述关联上层小区列表更新模块 38连接, 用于若 检测到所述一个关联上层小区的更新, 则将所述一个关联上层小区的配置 更新信息发送至网络侧管理节点。
本实施例关联上层小区的接收到孤立小区簇中的某一孤立小区的发送 模块发送的时分复用配置变更请求后, 可以根据该孤立小区当前使用的上 下行配置、 需要变更的上下行配置, 确定如何变更所述孤立小区的上下行 配置, 对孤立小区进行干扰控制, 可以降低不同上下行配置的干扰, 实现 不同上下行配置小区的干扰共存, 使孤立小区的配置模块对上下行业务的 上下行配置更合理, 满足不同上下行业务量的需求, 占用频谱资源少且成 本低。
图 10为本发明另一实施例提供的无线网络配置系统的示意图,如图 10 所示, 该无线网络配置系统包括: 关联上层小区 51和孤立小区簇 53, 所述 孤立小区簇 53为提供局部连续覆盖的一个或多个小区,所述孤立小区簇 53 直接相邻的关联上层小区 51的个数小于设定阈值; 其中, 所述关联上层小 区 51可以采用图 5、 图 6和图 7对应的本发明实施例提供的任一结构的无 线网络配置装置; 所述孤立小区簇 53的各个孤立小区 531可以采用图 8和 图 9对应的本发明实施例提供的任一结构的无线网络配置装置。
本实施例关联上层小区的接收到孤立小区簇中的某一孤立小区发送的 时分复用配置变更请求后, 可以根据该孤立小区当前使用的上下行配置、 需要变更的上下行配置, 确定如何变更所述孤立小区的上下行配置, 对孤 立小区进行干扰控制, 可以降低不同上下行配置的干扰, 实现不同上下行 配置小区的干扰共存, 使孤立小区的上下行配置更合理, 满足不同上下行 业务量的需求, 占用频谱资源少且成本低。
本领域普通技术人员可以理解: 实现上述方法实施例的全部或部分步 骤可以通过程序指令相关的硬件来完成, 前述的程序可以存储于一计算机 可读取存储介质中, 该程序在执行时, 执行包括上述方法实施例的步骤; 而前述的存储介质包括: R0M、 RAM, 磁碟或光盘等各种可以存储程序代码 的介质。
最后应说明的是: 以上实施例仅用以说明本发明的技术方案, 而非对 其限制; 尽管参照前述实施例对本发明进行了详细的说明, 本领域的普通 技术人员应当理解: 其依然可以对前述各实施例所记载的技术方案进行修 改, 或者对其中部分技术特征进行等同替换; 而这些修改或者替换, 并不 使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims

权利要求
1、 一种无线网络配置方法, 其特征在于, 包括:
接收孤立小区簇中的孤立小区发送的需要变更的上下行配置, 所述孤 立小区簇为提供局部连续覆盖的一个或多个小区;
根据所述孤立小区当前使用的上下行配置和需要变更的上下行配置, 确定允许所述孤立小区使用的上下行配置, 对所述孤立小区进行干扰控制; 向所述孤立小区返回允许所述孤立小区使用的上下行配置。
2、 根据权利要求 1所述的方法, 其特征在于, 所述方法还包括: 获取并保存所述关联上层小区覆盖范围内的孤立小区簇的配置信息, 所述孤立小区簇的配置信息包括所述孤立小区簇中配置的孤立小区列表; 启动对所述孤立小区簇的各个孤立小区的干扰检测;
如果对一个孤立小区干扰的检测结果低于设定的阈值, 则将所述一个 孤立小区从所述孤立小区簇对应的孤立小区列表中删除; 若对一个孤立小 区干扰的检测结果高于设定的阈值, 则将所述一个孤立小区保存到所述孤 立小区簇对应的孤立小区列表中。
3、 根据权利要求 2所述的方法, 其特征在于, 所述方法还包括: 将孤立小区簇的配置更新信息通知所述一个孤立小区; 和 /或
将孤立小区簇的配置更新信息发送至网络侧管理节点。
4、 根据权利要求 1-3任一权利要求所述的方法, 其特征在于, 根据所 述孤立小区当前使用的上下行配置和需要变更的上下行配置, 确定允许所 述孤立小区使用的上下行配置, 对所述孤立小区进行干扰控制, 包括: 根据所述孤立小区当前使用的上下行配置、 需要变更的上下行配置以 及所述关联上层小区自身的资源情况, 确定允许所述孤立小区使用的上下 行配置, 根据所述孤立小区当前使用的上下行配置、 允许所述孤立小区使 用的上下行配置进行干扰规避; 或 将需要变更的上下行控制信道确定为允许所述孤立小区使用的上下行 配置, 获取所述孤立小区需要变更的上下行控制信道的配置信息, 根据所 述孤立小区当前使用的上下行配置、 需要变更的上下行配置和需要变更的 上下行控制信道的配置信息, 进行干扰消除。
5、 根据权利要求 1-3任一权利要求所述的方法, 其特征在于, 所述确 定允许所述孤立小区使用的上下行配置, 包括:
若关联上层小区自身的资源情况资源完全支持需要变更的上下行配 置, 则允许所述孤立小区使用的上下行配置变更为所述需要变更的上下行 配置; 或
若关联上层小区自身的资源情况资源部分支持需要变更的上下行配 置, 则根据需要变更的上下行配置和关联上层小区自身的资源情况, 选择 允许所述孤立小区使用的上下行配置; 或
若关联上层小区自身的资源情况资源不支持需要变更的上下行配置, 则允许所述孤立小区使用的上下行配置保持为所述孤立小区当前使用的上 下行配置。
6、 根据权利要求 4 所述的方法 , 其特征在于, 所述根据所述孤立小 区当前使用的上下行配置、 允许所述孤立小区使用的上下行配置进行干扰 规避, 包括:
若所述关联上层小区为时分双工小区, 比较允许所述孤立小区使用的 上下行配置和所述孤立小区当前使用的上下行配置中不兼容的子帧的位 置, 置空所述不兼容的子帧; 或
若所述关联上层小区为频分双工小区, 比较所述允许孤立小区使用的 上下行配置和所述孤立小区当前使用的上下行配置; 若允许所述孤立小区 使用的上下行配置中的下行子帧的个数增加, 则关联上层小区根据上行业 务量, 确定是否具有空闲上行子帧可以空置作为时分双工小区的下行子帧, 如果有, 则根据空闲上行子帧数量, 确定允许增加的下行子帧的个数; 若 允许所述孤立小区使用的上下行配置中的上行子帧的个数增加, 则允许孤 立小区变更上下行配置。
7、 根据权利要求 4所述的方法, 其特征在于, 所述获取所述孤立小区 需要变更的上下行控制信道的配置信息, 根据所述孤立小区当前使用的上 下行配置、 需要变更的上下行配置和需要变更的上下行控制信道的配置信 息, 进行干扰消除, 包括:
若所述关联上层小区为时分双工小区, 则所述关联上层小区的接收机 识别所述孤立小区的用户设备 UE在上行控制信道的信号, 所述上行控制信 道的信号来自上下行配置不兼容的子帧位置上, 在接收到的总信号中减去 来自所述孤立小区的 UE在上行控制信道的信号, 得到来自所述关联上层小 区的 UE的有用信号; 或, 所述关联上层小区的 UE的接收机识别所述孤立 小区在下行控制信道的信号, 所述下行控制信道的信号来自上下行配置不 兼容的子帧位置上, 在接收到的总信号中减去来自所述孤立小区在下行控 制信道的信号, 得到来自所述关联上层小区的有用信号; 或
若所述关联上层小区为频分双工小区, 所述关联上层小区的接收机在 所述孤立小区的上行子帧位置识别所述孤立小区的 UE在上行控制信道的信 号, 所述上行控制信号来自上下行配置不兼容的子帧位置上, 在接收到的 总信号中减去来自所述孤立小区 UE在上行控制信道的信号, 得到来自所述 关联上层小区的 UE的有用信号; 或, 所述关联上层小区的 UE的接收机在 孤立小区的下行子帧位置识别所述孤立小区在下行控制信道的信号, 所述 下行控制信道来自上下行配置不兼容的子帧位置上, 在接收到的总信号中 减去来自孤立小区在下行控制信道的信号, 得到来自关联宏小区的有用信 所述上下行配置不兼容的子帧位置由所述孤立小区当前使用的上下行 配置和需要变更的上下行配置确定。
8、 根据权利要求 7所述的方法, 其特征在于, 所述上下行配置不兼容 的子帧位置, 具体包括:
若所述关联上层小区为时分双工小区, 则配置的不兼容子帧的位置为 需要变更的上下行配置和当前使用的上下行配置中上下行配置不同的子帧 位置;
若所述关联上层小区为频分双工小区, 则配置的不兼容子帧的位置为 需要变更的上下行配置和频分双工当前使用的配置中上下行配置不同的子 帧位置。
9、 根据权利要求 1-3任一权利要求所述的方法, 其特征在于, 所述孤 立小区簇的配置信息包括是否是孤立小区的指示和 /或关联上层小区列表, 所述方法还包括:
根据所述是否是孤立小区的指示, 确定一个小区是否为孤立小区; 和 / 或
根据所述关联上层小区列表, 确定与一个小区直接相邻的关联上层小 区。
1 0、 一种无线网络配置方法, 其特征在于, 包括:
根据当前的上下行的业务需求确定需要变更的上下行配置, 向孤立小 区归属的孤立小区簇的关联上层小区发送所述孤立小区需要变更的上下行 配置, 所述孤立小区簇为提供局部连续覆盖的一个或多个小区;
根据关联上层小区返回的允许所述孤立小区使用的上下行配置, 进行 所述孤立小区的上下行业务的配置。
1 1、 根据权利要求 10所述的方法, 其特征在于, 所述进行所述孤立小 区的上下行业务的配置之后, 包括:
将所述孤立小区当前使用的上下行配置, 发送至所述孤立小区所服务 的用户设备 UE和相邻小区, 所述相邻小区包括所述孤立小区归属的孤立小 区簇中的除了发起请求的孤立小区之外的其他孤立小区和所述孤立小区簇 的关联上层小区。
12、 根据权利要求 10或 11所述方法, 其特征在于, 所述方法还包括: 获取并保存所述关联上层小区的配置信息, 所述关联上层小区的配置 信息中包括配置的关联上层小区列表;
启动对所述孤立小区归属的孤立小区簇的各个关联上层小区的干扰检 测;
若对一个关联上层小区干扰的检测结果高于设定的阈值, 则将所述一 个关联上层小区保存到所述初始的关联上层小区列表中;
若对一个关联上层小区干扰的检测结果低于设定的阈值, 则将所述一 个关联上层小区从所述初始的关联上层小区列表中删除。
13、 根据权利要求 10或 11 所述的方法, 其特征在于, 所述方法还包 括:
若所述一个关联上层小区的配置信息中还包括配置的孤立小区列表, 则通知所述一个关联上层小区根据该孤立小区干扰的检测结果更新该一个 关联上层小区保存的孤立小区列表; 和 /或
若检测到所述一个关联上层小区的更新, 则将所述一个关联上层小区 的配置更新信息发送至网络侧管理节点。
14、 一种无线网络配置装置, 其特征在于, 包括:
请求接收模块, 用于接收孤立小区簇中的孤立小区发送的需要变更的 上下行配置, 所述孤立小区簇为提供局部连续覆盖的一个或多个小区; 干扰控制模块, 用于根据所述孤立小区当前使用的上下行配置和所述 请求接收模块接收到的需要变更的上下行配置, 确定允许所述孤立小区使 用的上下行配置, 对所述孤立小区进行干扰控制;
配置返回模块, 用于向所述孤立小区返回所述干扰控制模块确定的允 许所述孤立小区使用的上下行配置。
15、 根据权利要求 14所述的无线网络配置装置, 其特征在于, 所述装 置还包括: 配置获取模块, 用于获取并保存所述关联上层小区覆盖范围内的孤立 小区簇的配置信息, 所述孤立小区簇的配置信息包括所述孤立小区簇中初 始的孤立小区列表;
干扰检测模块, 与所述配置获取模块连接, 用于启动对所述孤立小区 簇的各个孤立小区的干扰检测;
孤立小区列表更新模块, 与所述干扰检测模块连接, 用于如果对一个 孤立小区干扰的检测结果低于设定的阈值, 则将所述一个孤立小区从所述 孤立小区簇对应的孤立小区列表中删除; 若对一个孤立小区干扰的检测结 果高于设定的阈值, 则将所述一个孤立小区保存到所述孤立小区簇对应的 孤立小区列表中。
16、 根据权利要求 14所述的无线网络配置装置, 其特征在于, 所述装 置还包括:
更新通知模块, 与所述孤立小区列表更新模块连接, 用于将孤立小区 簇的配置更新信息通知所述一个孤立小区; 和 /或, 将孤立小区簇的配置更 新信息发送至网络侧管理节点。
17、 根据权利要求 14所述的无线网络配置装置, 其特征在于, 所述干 扰控制模块包括:
干扰规避单元, 用于根据所述孤立小区当前使用的上下行配置、 需要 变更的上下行配置以及所述关联上层小区自身的资源情况, 确定允许所述 孤立小区使用的上下行配置, 根据所述孤立小区当前使用的上下行配置、 允许所述孤立小区使用的上下行配置进行干扰规避;
干扰消除单元, 用于将需要变更的上下行控制信道确定为允许所述孤 立小区使用的上下行配置, 获取所述孤立小区需要变更的上下行控制信道 的配置信息, 根据所述孤立小区当前使用的上下行配置、 需要变更的上下 行配置和需要变更的上下行控制信道的配置信息, 进行干扰消除。
18、 根据权利要求 17所述的无线网络配置装置, 其特征在于: 所述干扰规避单元具体用于若所述关联上层小区为时分双工小区, 则 比较允许所述孤立小区使用的上下行配置和所述孤立小区当前使用的上下 行配置中不兼容的子帧的位置, 置空所述不兼容的子帧; 或, 若所述关联 上层小区为频分双工小区, 比较所述允许孤立小区使用的上下行配置和所 述孤立小区当前使用的上下行配置; 若允许所述孤立小区使用的上下行配 置中的下行子帧的个数增加, 则关联上层小区根据上行业务量, 确定是否 具有空闲上行子帧可以空置作为时分双工小区的下行子帧, 如果有, 则根 据空闲上行子帧数量, 确定允许增加的下行子帧的个数; 若允许所述孤立 小区使用的上下行配置中的上行子帧的个数增加, 则允许孤立小区变更上 下行配置;
所述干扰消除单元具体用于若所述关联上层小区为时分双工小区, 则 所述关联上层小区的接收机识别所述孤立小区的用户设备 UE在上行控制信 道的信号, 所述上行控制信道的信号来自上下行配置不兼容的子帧位置上, 在接收到的总信号中减去来自所述孤立小区的 UE在上行控制信道的信号, 得到来自所述关联上层小区的 UE的有用信号; 或, 所述关联上层小区的 UE 的接收机识别所述孤立小区在下行控制信道的信号, 所述下行控制信道的 信号来自上下行配置不兼容的子帧位置上, 在接收到的总信号中减去来自 所述孤立小区在下行控制信道的信号, 得到来自所述关联上层小区的有用 信号; 或若所述关联上层小区为频分双工小区, 所述关联上层小区的接收 机在所述孤立小区的上行子帧位置识别所述孤立小区的用户设备 UE在上行 控制信道的信号, 所述上行控制信道的信号来自上下行配置不兼容的子帧 位置上, 在接收到的总信号中减去来自所述孤立小区 UE在上行控制信道的 信号, 得到来自所述关联上层小区的 UE的有用信号; 或, 所述关联上层小 区的 UE的接收机在孤立小区的下行子帧位置所述孤立小区在下行控制信道 的信号, 所述下行控制信道的信号来自上下行配置不兼容的子帧位置上, 在接收到的总信号中减去来自孤立小区在下行控制信道的信号, 得到来自 关联宏小区的有用信号; 所述上下行配置不兼容的子帧位置由孤立小区当 前使用的上下行配置和需要变更的上下行配置确定。
19、 一种无线网络配置装置, 其特征在于, 包括:
发送模块, 用于根据当前的上下行的业务需求确定需要变更的上下行 配置, 向孤立小区归属的孤立小区簇的关联上层小区发送所述孤立小区需 要变更的上下行配置, 所述孤立小区簇为提供局部连续覆盖的一个或多个 小区;
配置模块, 与所述发送模块连接, 用于根据关联上层小区返回的允许 所述孤立小区使用的上下行配置, 进行所述孤立小区的上下行业务的配置。
20、 根据权利要求 19所述的无线网络配置装置, 其特征在于, 所述发 送模块还用于将所述孤立小区当前使用的上下行配置, 发送至所述孤立小 区所服务的用户设备 UE和相邻小区, 所述相邻小区包括所述孤立小区归属 的孤立小区簇中的除了发起请求的孤立小区之外的其他孤立小区和所述孤 立小区簇的关联上层小区。
21、 根据权利要求 19或 20所述的无线网络配置装置, 其特征在于, 所述装置还包括:
配置获取模块, 用于获取并保存所述关联上层小区的配置信息, 所述 关联上层小区的配置信息中包括初始的关联上层小区列表;
干扰检测模块, 与所述配置获取模块连接, 用于启动对所述孤立小区 归属的孤立小区簇的各个关联上层小区的干扰检测;
关联上层小区列表更新模块, 与所述干扰检测模块连接, 用于若对一 个关联上层小区干扰的检测结果高于设定的阈值, 则将所述一个关联上层 小区保存到所述初始的关联上层小区列表中; 若对一个关联上层小区干扰 的检测结果低于设定的阈值, 则将所述一个关联上层小区从所述初始的关 联上层小区列表中删除。
22、 根据权利要求 19所述的无线网络配置装置, 其特征在于, 所述装 置还包括:
孤立小区列表更新模块, 与所述干扰检测模块连接, 用于若所述一个 关联上层小区的配置信息中还包括初始的孤立小区列表, 则通知该一个关 联上层小区根据该孤立小区干扰的检测结果更新该一个关联上层小区保存 的孤立小区列表; 和 /或
更新通知模块, 与所述关联上层小区列表更新模块连接, 用于若检测 到所述一个关联上层小区的更新, 则将所述一个关联上层小区的配置更新 信息发送至网络侧管理节点。
23、 一种无线网络配置系统, 其特征在于, 包括: 关联上层小区和孤 立小区簇, 所述孤立小区簇为提供局部连续覆盖的一个或多个小区, 所述 孤立小区簇直接相邻的关联上层小区的个数小于设定阈值;
所述关联上层小区采用如权利要求 14-18任一所述的无线网络配置装 置;
所述孤立小区簇的各个孤立小区采用如权利要求 19-22任一所述的无 线网络配置装置。
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