WO2011127851A2 - 基站节能方法、系统及装置 - Google Patents

基站节能方法、系统及装置 Download PDF

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Publication number
WO2011127851A2
WO2011127851A2 PCT/CN2011/074098 CN2011074098W WO2011127851A2 WO 2011127851 A2 WO2011127851 A2 WO 2011127851A2 CN 2011074098 W CN2011074098 W CN 2011074098W WO 2011127851 A2 WO2011127851 A2 WO 2011127851A2
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WO
WIPO (PCT)
Prior art keywords
station
state
coverage
capacity
saving state
Prior art date
Application number
PCT/CN2011/074098
Other languages
English (en)
French (fr)
Other versions
WO2011127851A3 (zh
Inventor
徐修强
陈雁
徐树公
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.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201180000702.4A priority Critical patent/CN102396257B/zh
Priority to EP11768462.1A priority patent/EP2701426A4/en
Priority to PCT/CN2011/074098 priority patent/WO2011127851A2/zh
Publication of WO2011127851A2 publication Critical patent/WO2011127851A2/zh
Publication of WO2011127851A3 publication Critical patent/WO2011127851A3/zh
Priority to US14/083,024 priority patent/US20140073311A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
    • H04W52/0206—Power saving arrangements in the radio access network or backbone network of wireless communication networks in access points, e.g. base stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00837—Determination of triggering parameters for hand-off
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00837—Determination of triggering parameters for hand-off
    • H04W36/008375—Determination of triggering parameters for hand-off based on historical data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/22—Performing reselection for specific purposes for handling the traffic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a base station energy saving method, system and device.
  • Provide basic network coverage deploy heterogeneous or homogeneous inter-frequency networks, or deploy capacity stations in hotspots for service upgrades and capacity enhancements.
  • the base station that provides basic network coverage is collectively referred to as an overlay station, and the base station that performs service upgrade or capacity enhancement and is completely within the coverage of the coverage station is a Hotspot Cell.
  • hotspot stations B, C, and D for the purpose of capacity expansion are deployed in the hotspot area within the coverage of the macro base station A, then the macro base station A is the coverage station, and the hotspot stations C and D are the capacity stations;
  • the base station F at the frequency point fl provides basic network coverage for a certain area, and the base station E of the heterogeneous or same-type inter-frequency point f2 is co-located with the base station F to perform capacity enhancement, and the base station F is Covering station, base station E is a capacity station.
  • the coverage station and a large number of capacity stations are deployed, which increases the energy consumption, and the wireless network energy saving is an urgent problem.
  • An existing method for power saving a base station includes: if the load of the base station is lower than a certain threshold, the management system notifies the base station to perform the first predetermined operation, that is, enters a complete sleep state by itself or shuts down by itself; if the base station covers the load of the neighboring area Above a certain threshold, the management system notifies the base station to perform a second predetermined operation, that is, wake up by itself or turn itself on.
  • the base station may not be able to effectively absorb the load of the coverage neighboring area after being completely awake or turned on. This will cause the base station to completely wake up or fully open, which will waste resources and power.
  • Another method for power saving of the base station can include: when the coverage station detects that the load is high, activate all the capacity stations in the coverage state; if some of the capacity stations are activated, if the coverage of the coverage station cannot be effectively absorbed, when satisfied again When entering the sleep state, this part of the capacity station enters the sleep state to save energy.
  • the capacity station In the process that the capacity station enters the sleep state and then enters the sleep state after the capacity station is activated, fully activating this part of the capacity station wastes resources and power, and the capacity station covers the range.
  • the idle state user within the perimeter creates mobility between the capacity station and the coverage station, with the user's movement, especially when the coverage station and the capacity station belong to different standards, there may be a large number of location update procedures.
  • Embodiments of the present invention provide a base station energy saving method, system, and device, which implement energy saving of a base station.
  • An embodiment of the present invention provides a method for saving a base station, including:
  • the capacity station In the first power saving state, the capacity station only carries the connected state user equipment, and sends system information of the connected state user equipment; in the second power saving state, the capacity station rejects the user equipment that carries any state. .
  • the capacity station In the first power saving state, the capacity station only carries the connected state user equipment, and sends system information of the connected state user equipment; in the second power saving state, the capacity station rejects the user equipment that carries any state. .
  • a load detecting unit configured to detect whether a load of the coverage station is higher than a preset value
  • Activating a sending unit configured to: when the load detecting unit detects that the load of the coverage station is higher than a preset value, send a second activation request to a capacity station in a second power saving state within the coverage of the coverage station, where The second activation request is used to request the capacity station to enter the first power saving state from the second power saving state;
  • the capacity station In the first power saving state, the capacity station only carries the connected state user equipment, and sends system information of the connected state user equipment; in the second power saving state, the capacity station does not carry the user equipment in any state.
  • the embodiment of the invention further provides an operation, management and maintenance OAM device, including: a coverage station load detecting unit, configured to detect whether a load of the overlay station is higher than a preset value; and a status activation sending unit, configured to: when the overlay station load detecting unit detects that the load of the overlay station is higher than a preset value Transmitting a second activation request to the capacity station in the second power saving state within the coverage of the coverage station, and notifying the coverage station of state transition information that the capacity station enters the first power saving state from the second power saving state, And the second activation request is used to request the capacity station to enter the first power saving state from the second power saving state;
  • the capacity station In the first power saving state, the capacity station only carries the connected state user equipment, and sends system information of the connected state user equipment; in the second power saving state, the capacity station does not carry the user equipment in any state.
  • the embodiment of the present invention further provides another base station, including:
  • a second activation request receiving unit configured to receive a second activation request sent by the OAM device, or to operate, manage, and maintain the OAM device, where the second activation request is used to request the capacity station to enter the first energy-saving state from the second energy-saving state ;
  • a state conversion unit configured to enter a first power saving state from a current second power saving state after the second activation request receiving unit receives the second activation request
  • the capacity station In the first power saving state, the capacity station only carries the connected state user equipment, and sends system information of the connected state user equipment; in the second power saving state, the capacity station rejects the user equipment that carries any state. .
  • An embodiment of the present invention further provides a base station energy saving system, including: a coverage station and at least one capacity station in a coverage area of the coverage station;
  • the coverage station is configured to detect whether the load of the coverage station is higher than a preset value, and if yes, send a second activation request to the capacity station in the second energy-saving state within the coverage of the coverage station, the second The activation request is used to request the capacity station to enter the first power saving state from the second power saving state; in the first power saving state, the capacity station only carries the connected state user equipment, and sends system information of the connected state user equipment; In the second power-saving state, the capacity station rejects a user equipment that carries any state; the capacity station is configured to receive a second activation request sent by the coverage station, and enter the first state from the current second energy-saving state. Energy saving status.
  • the embodiment of the present invention further provides another base station energy-saving system, including: an coverage station, at least one capacity station within the coverage of the coverage station, and an operation management and maintenance OAM device;
  • the OAM device is configured to detect whether the load of the coverage station is higher than a preset value, and if yes, send a second activation request to the capacity station in the second energy-saving state within the coverage of the coverage station, the second The activation request is used to request the capacity station to enter the first power saving state from the second power saving state, and notify the coverage station of the state transition information that the capacity station enters the first power saving state from the second power saving state;
  • the capacity station In the state, the capacity station only carries the connected state user equipment, and sends system information of the connected state user equipment; in the second power saving state, the capacity station refuses to carry the user equipment in any state;
  • the capacity station is configured to receive a second activation request sent by the OAM device, and enter a first energy saving state from a current second energy saving state;
  • the coverage station is configured to receive state transition information that the capacity station sent by the OAM device enters the first power saving state from the second power saving state.
  • the base station power saving method in the embodiment of the present invention includes: if it is detected that the load of the coverage station is higher than a preset value, sending a second activation request to all or part of the capacity station in the second energy-saving state within the coverage station range , to activate these capacity stations to enter the first energy saving state.
  • a second activation request to all or part of the capacity station in the second energy-saving state within the coverage station range , to activate these capacity stations to enter the first energy saving state.
  • the idle state user equipment is not carried, and the mobility of the idle state user equipment between the coverage station and the capacity station is avoided.
  • Figure la is a schematic structural diagram of a coverage station and a capacity station in the prior art
  • Figure lb is a schematic structural diagram of another coverage station and a capacity station in the prior art
  • FIG. 2 is a flowchart of a method for saving a base station according to an embodiment of the present invention
  • FIG. 3 is a flowchart of another base station energy saving method according to an embodiment of the present invention.
  • FIG. 4 is a flowchart of another base station energy saving method according to an embodiment of the present invention
  • FIG. 5 is a flowchart of another base station energy saving method according to an embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of transitioning between three states of a capacity station according to an embodiment of the present invention
  • FIG. 7 is a flowchart of a specific application example in which a capacity station enters a first energy-saving state from a normal state according to an embodiment of the present invention
  • FIG. 7b is a flowchart of a capacity station entering a normal state from a first power saving state in a specific application example according to an embodiment of the present invention.
  • FIG. 8 is a flowchart of a capacity station entering a first power saving state from a normal state according to another specific application example provided by an embodiment of the present invention.
  • FIG. 8b is a flowchart of a capacity station entering a normal state from a first power saving state in another specific application example according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a coverage station according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of another coverage station according to an embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of an OAM device according to an embodiment of the present invention.
  • FIG. 12 is a schematic structural diagram of another OAM device according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic structural diagram of a capacity station according to an embodiment of the present invention.
  • FIG. 14 is a schematic structural diagram of another capacity station according to an embodiment of the present invention.
  • the method of this embodiment is a method performed by a coverage station or an Operation, Administration and Maintenance (OAM) device, wherein the OAM device is used in the system for management.
  • OAM Operation, Administration and Maintenance
  • Step 101 Detect whether the load of the overlay station is higher than a preset value. If it is higher, perform step 102; if not, end the process.
  • Step 102 Send a second activation request to the capacity station in the second power-saving state within the coverage of the coverage station, where the second activation request is used to request the capacity station to enter the first power-saving state from the second power-saving state.
  • the coverage station or the OAM device can send the second activation request to all the capacity stations in the coverage station to enter the first power saving state; or the second activation request can be sent to the capacity station in the coverage station, for example, the part of the capacity station can It is a capacity station covering the user equipment and the traffic-distributed area in the station, so that the capacity station can be activated according to the distribution of the user equipment.
  • the capacity station can only carry the connected state user equipment, and send the system information necessary for the connected state user equipment, and does not send the system information necessary for the non-connected user equipment.
  • the capacity station may further support the source base station as the handover of the coverage station where the capacity station is located, and reject the source base station as a handover that is not the coverage station where the capacity station is located, and reject the cell selection and cell reselection targeting the capacity station;
  • the station only sends a paging message for notifying the system information update, and does not send a paging message for paging the user equipment.
  • the capacity station rejects the user equipment carrying any state, but the capacity station in the second power saving state retains the interface with the overlay station or the OAM device.
  • the OAM device performs the detection load and sends the second activation request
  • the OAM device also needs to enter the capacity station from the second power saving state to the first power saving state.
  • the state transition information informs the coverage station where the capacity station is located, so that the coverage station can know the status of each capacity station within the coverage, so that the state of each capacity station is considered in handover and cell reselection.
  • the coverage station in the coverage station When the capacity station in the coverage station is in the first power-saving state, if the user equipment in the connected state performs handover with the capacity station as the target base station, the coverage station or the OAM device may perform packet switching (PS) service in the coverage station. And/or Circuit Switching (CS) service is switched to the capacity station.
  • PS packet switching
  • CS Circuit Switching
  • the method for saving power of the base station in the embodiment of the present invention includes: if it is detected that the load of the coverage station is higher than a preset value, sending a second activation request to all or part of the coverage station in the second power saving state. The capacity station, to activate these capacity stations to enter the first energy saving state.
  • the capacity station since the capacity station only carries the connected state user equipment in the first power saving state, the idle state user equipment is carried by the coverage station, thereby reducing the common signaling overhead that the capacity station needs to transmit, and achieving the purpose of energy saving of the capacity station.
  • the user equipment is not carried in the idle state, so that the idle state user is avoided before the capacity station is completely determined to need to return to the normal state.
  • the mobility of the device between the overlay station and the capacity station is not carried in the idle state, so that the idle state user is avoided before the capacity station is completely determined to need to return to the normal state.
  • the coverage station or the OAM device can also implement energy saving of the base station by using the following steps:
  • the capacity station enters a normal state from the first energy-saving state:
  • A1 detecting whether the connected state user equipment in the coverage area of the coverage station uses the capacity station in the first power saving state as the target base station to switch the number of times per unit time is higher than a preset value, and if yes, executing step B1, if not, End the process.
  • the first activation request is used to request the capacity station to enter a normal state from the first power saving state, and the capacity station can carry the user equipment in any state in the normal state, and also allows the cell selection or cell reselection of the base station with the capacity station as the destination station. .
  • the coverage station or the OAM device can also detect whether the handover success rate of the handover of the capacity station in the first power-saving state is lower than a preset value, and if yes, execute step B1, if not, end the process .
  • the steps A1 to C1 are performed by the overlay station, since the capacity station is the user equipment that refuses to carry the idle state in the first power-saving state, when the capacity station enters the normal state from the first power-saving state, It is allowed to access the user equipment in the idle state.
  • the overlay station may also update the cell reselection parameters of the capacity station in the system message of the overlay station such that idle user equipment within the coverage of the coverage station is allowed to reselect to the capacity station.
  • the OAM device detects the number of times of switching or the success rate of the switching, and after transmitting the first activation request, the OAM device also needs to change the capacity station from the first power saving state to the normal state.
  • the status transition information of the status informs the overlay station, and the overlay station Know the status of each capacity station within the coverage, so that the status of each capacity station is considered during handover and cell reselection;
  • the cell reselection parameter of the capacity station in the system message of the coverage station may be updated, so that the idle user equipment in the coverage of the coverage station is The re-selection to the capacity station is allowed to facilitate the operation of cell reselection performed by the user equipment in the range of the station; and the overlay station may not perform the operation of updating the system message after receiving the state transition information.
  • the coverage station or the OAM device can also implement energy saving of the base station by using the following steps.
  • the coverage station or the OAM device determines that the capacity station enters the first state from the normal state. Energy saving status:
  • A2 receiving a request sent by the capacity station to enter the first power saving state from a normal state
  • the capacity station when the capacity station is in a normal state, when the capacity station detects that the load of the capacity station is lower than the preset value, it sends a request to enter the first power saving state to the coverage station where the capacity station is located, or the OAM device.
  • the preset conditions here include, but are not limited to, at least one of the following information: the current load of the overlay station is lower than a preset value, and the load statistics of the overlay station indicate that the load is lower than the preset in the preset time after the overlay station The value, the load statistics of the capacity station shows that the load is lower than the preset value in the preset time period after the capacity station.
  • C2 Send a positive decision result to the capacity station, allowing the capacity station to enter the first energy saving state from the normal state;
  • D2 Send the reverse decision result to the capacity station, and the capacity station is not allowed to enter the first power saving state from the normal state.
  • the coverage station may also update the cell reselection parameter of the capacity station in the system message of the coverage station, so that the idle user equipment in the coverage of the coverage station is blocked. Re-selection to the capacity station to facilitate the operation of cell reselection by user equipment within the coverage of the station.
  • steps A2 to D2 are performed by the OAM device, that is, the OAM device performs the first reception.
  • the energy-saving status request and the determination result are sent.
  • the OAM device sends the forward decision result the status change information of the capacity station entering the first power-saving state from the normal state is also notified to the coverage station, and the coverage station can know each coverage area. The status of the capacity station so that the status of each capacity station is taken into account during handover and cell reselection;
  • the cell reselection parameter of the capacity station in the system message of the coverage station may be updated, so that the idle user equipment in the coverage of the coverage station is The reselection to the capacity station is prevented; and the overlay station may not perform the above operation of updating the system message after receiving the state transition information.
  • the capacity station detects that the user equipment has no connected state in the capacity station within a preset time, it decides to enter the second power-saving state, that is, the sleep state or the shutdown state, from the first power-saving state, and sends the capacity station from the first energy-saving state.
  • the state transition information of the state entering the second power saving state directly informs the coverage station where the capacity station is located, or notifies the coverage station where the capacity station is located by the OAM device.
  • the method of this embodiment is a method performed by a capacity station, and the flowchart is as shown in Figure 5, including:
  • Step 201 Receive a second activation request sent by the coverage station or the OAM device where the capacity station is located, where the second activation request is used to request the capacity station to enter the first energy-saving state from the second power-saving state.
  • the coverage station or the OAM device detects that the load of the coverage station is higher than the preset value, it is required to activate all or part of the capacity station in the second power-saving state within the coverage of the coverage station, and send a second activation request to These capacity stations.
  • Step 202 Enter a first energy-saving state from a current second energy-saving state.
  • the capacity station In the first power saving state, the capacity station only carries the connected state user equipment, and sends the system information necessary for the connected state user equipment, and does not send the system information necessary for the non-connected user equipment;
  • the source base station may also be supported as a handover of the coverage station where the capacity station is located, and the source base station is rejected as a handover of the coverage station where the capacity station is located, and the cell selection and cell reselection targeting the capacity station are rejected; and the capacity station only A paging message for notifying the system information update is sent without sending a paging message for paging the user equipment.
  • the capacity station rejects the user equipment carrying any state, but the capacity station in the second power saving state retains the interface with the overlay station or the OAM device.
  • the method for saving power of the base station in the embodiment of the present invention includes: when the capacity station receives the second activation request sent by the coverage station or the OAM device, and enters the first energy-saving state by the current second energy-saving state.
  • the capacity station since the capacity station only carries the connected state user equipment in the first power saving state, the idle state user equipment is carried by the coverage station, thereby reducing the common signaling overhead that the capacity station needs to transmit, and achieving the purpose of energy saving of the capacity station.
  • the capacity station does not carry the idle state user equipment after being activated from the first power-saving state, that is, the sleep state or the shutdown state, thereby avoiding the idle state user before completely determining whether the capacity station needs to return to the normal state.
  • the mobility of the device between the overlay station and the capacity station is not carried.
  • the coverage station or the OAM device detects that the connected state user equipment in the coverage area of the coverage station uses the capacity station in the first power saving state as the target base station, the number of switching times per unit time is higher than a preset value, or is detected to be in the first energy saving state.
  • the first activation request is used to request the capacity station to enter the normal state from the first energy-saving state, and the first activation request is sent to the capacity station, and the first activation request is sent to the capacity station.
  • the capacity station receives the first activation request, it enters the normal state from the current first power saving state.
  • the capacity station can carry the user equipment in any state under the normal state, and also allows the cell selection or cell reselection operation of the base station with the capacity station as the destination.
  • the capacity station when detecting the load of the capacity station, can detect, but is not limited to, one or more of the following information: the number of connected users of the capacity station, the downlink data volume of the capacity station, and the air interface resource occupancy rate of the capacity station. Wait.
  • the parameter of the cell access in the system message of the capacity station may be updated, so that the idle state user equipment in the coverage of the capacity station resides in the capacity station, and the capacity is made.
  • the user equipment within the coverage of the station is allowed to use the capacity station as the target base station. Zone selection and cell reselection.
  • the capacity station can decide whether to enter the first energy-saving state, specifically: the capacity station detects whether the load of the capacity station is lower than a preset value, and if so, enters the first energy-saving state from the current normal state, and the capacity station The switching information from the normal state to the first power saving state notifies the coverage station where the capacity station is located; if not, the capacity station continues to be in the normal state.
  • the user equipment moves out of the idle state user equipment in the coverage of the capacity station, and updates the parameter of the cell access in the system message of the capacity station, so that the capacity station coverage
  • the user equipment within is prevented from using the capacity station as the cell selection and cell reselection of the target base station.
  • the first energy-saving state may be determined by the coverage station or the OAM device where the capacity station is located, specifically: the capacity station detects whether the load of the capacity station is lower than a preset value, and if yes, the transmission enters the first state from the normal state. A request for a power saving status is given to the overlay station or the OAM device.
  • the coverage station or the OAM device can perform the determination of whether the capacity station enters the first power-saving state according to the steps of steps A2 to D2 described above, and details are not described herein again.
  • the capacity station receives the coverage station or the OAM device enters the first energy-saving state according to the state.
  • the forward decision result of the request feedback enters the first power saving state from the current normal state; if the capacity station receives the reverse decision result fed back by the coverage station or the OAM device, it continues to be in the normal state.
  • the capacity station If the capacity station detects that the capacity station has no connected state user equipment within a preset time, enters the second power saving state from the current first power saving state, and enters the capacity state station from the first power saving state to the second power saving state.
  • the conversion information directly informs the coverage station, or the coverage station is notified by the OAM device, so that the coverage station can know the state of the capacity station within its coverage and perform corresponding handover and cell selection operations.
  • the capacity station has three states, that is, a normal state, a first energy-saving state, and a second power-saving state.
  • a normal state if the capacity of the capacity station is low, That is, below the preset value, the first power-saving state is entered; and the capacity station in the first power-saving state receives the first activation request of the overlay station or the OAM device, and then enters the normal state.
  • the second power-saving state is entered from the first power-saving state, that is, the sleep state or the shutdown state; when the capacity station is in the second energy-saving state In the status, if the second activation request of the overlay station or the OAM device is received, the first power saving state is entered.
  • the capacity station cannot be directly converted between the normal state and the second energy-saving state.
  • both the coverage station and the capacity station are evolved Evoled UTRAN (EUTRAN) cells; wherein the coverage station provides basic network coverage, the capacity station is within the coverage of the coverage station, and the coverage station is completely covered. cover.
  • EUTRAN evolved Evoled UTRAN
  • Whether the capacity station performs the first power saving state from the normal state may be determined by the capacity station itself, or may be determined by the coverage station or the OAM device where the capacity station is located.
  • the capacity station When the capacity station is in a normal state, if it is detected that the load of the capacity station is lower than the preset threshold HI, set the cell bearer in the System Information Block Typel message of the capacity station of the capacity station.
  • the (cell Barred) parameter is "prohibited bearer”. After the T1 time, the capacity station enters the first power-saving state from the normal state.
  • the detected load includes at least one of the following factors: the number of connected users of the capacity station, the downlink data volume of the capacity station, and the air interface resource occupancy rate of the capacity station.
  • the capacity station notifies the coverage station of state transition information that is accessed by the normal state to the first energy-saving state.
  • the coverage station may add the physical cell identifier (phys Cell Id) of the capacity station to Covering the Intra Freq Black Cell List of the System Information Block Type 4 message of the system information block of the station, and updating the system information;
  • the coverage station may add the physical cell identifier (phys Cell Id) of the capacity station to the inter-frequency cell of the Type 5 message of the coverage station system information block. In the Blacklist (Inter Freq Black Cell List), and update the system information.
  • the capacity station enters the second energy-saving state from the first energy-saving state:
  • the capacity station When the capacity station is in the first power-saving state, if there is no connected state user equipment within the preset time T2, the second power-saving state is entered from the first power-saving state, and the state-converted information that enters the second power-saving state from the first energy-saving state Notify the coverage station.
  • the capacity station When the capacity station is in the second power-saving state, if the coverage station where the capacity station is located detects that the load of the coverage station is higher than the preset threshold H2, the second activation request is sent to all or part of the capacity stations in the coverage, requesting the capacity station Enter the first energy saving state.
  • the first power saving state enters the first energy saving state.
  • the capacity station When the capacity station is in the first power-saving state, if the coverage station detects that the coverage station is connected, the user switches the number of times per unit time of the target station to exceed the preset threshold H3, or performs switching by using the capacity station as the target base station. When the success rate is lower than the preset threshold H4, the overlay station sends a first activation request to the capacity station.
  • the coverage station may identify the physical cell identifier of the capacity station from the same-frequency cell of the Type 4 message of the system information block of the coverage station. Delete the blacklist and update the system information;
  • the coverage station may use the physical cell identifier of the capacity station from the inter-frequency cell blacklist list of the Type 5 message of the coverage station system information block after the T3 time of transmitting the first activation request. Delete, and update system information.
  • the capacity station When the capacity station receives the first activation request sent by the coverage station, the first energy-saving state enters a normal state. Specifically, setting a cell bearer parameter of the type 1 message of the system information block to “capable of carrying”, and updating system information. .
  • the mobile management entity when the capacity station is in the first power saving state, the mobile management entity may be received.
  • the capacity station can send system information of the connected user equipment, such as a master information block (MIB) and a system information block (System). Information Block, SIB) 1 to 4, without sending other system information; If the capacity station and the coverage station belong to the inter-frequency cell, the capacity station can send system information of the connected user equipment, such as the main information block and the system information block 1 Go to 3 and system information block 5 without sending other system information;
  • MIB master information block
  • SIB system information block
  • SIB system information block
  • the capacity station In the first power-saving state, the capacity station normally transmits other common signals, including the pilot signal and the synchronization signal; and the switching of the source base station is performed at the coverage station, and the source base station is rejected as all handovers of the non-covering station.
  • the capacity station When the capacity station is in the second power-saving state, it completely sleeps or shuts down and retains the interface with the overlay station.
  • the coverage station and the capacity station belong to different radio access cells, for example, the coverage station is a Universal Terrestrial Radio Access Network (UTRAN) cell, and the capacity station is an EUTRAN cell.
  • the coverage station provides basic network coverage, and the capacity station is within the coverage of the coverage station and is completely covered by the coverage station.
  • UTRAN Universal Terrestrial Radio Access Network
  • EUTRAN EUTRAN
  • Whether the capacity station performs the first energy saving state from the normal state may be determined by the capacity station itself or may be determined by the OAM device.
  • the detected load includes at least one of the following factors: the number of connected users of the capacity station, the downlink data volume of the capacity station, and the air interface resource occupancy rate of the capacity station.
  • the capacity station notifies the coverage station of the state transition information that is accessed by the normal state to the first energy-saving state by the OAM device.
  • the capacity station and the coverage station belong to different access network cells in this embodiment, the information between the capacity station and the coverage station needs to be transmitted through the OAM device.
  • the coverage station may add the physical cell identifier of the capacity station to the EUTRAN frequency and priority of the type 19 message of the system information block of the coverage station. In the Black Listed cells per freq list in the EUTRAN Frequency and priority info list, the system information is updated.
  • the capacity station enters the second energy-saving state from the first energy-saving state:
  • the capacity station When the capacity station is in the first power-saving state, if there is no connected state user equipment within the preset time T2, the second power-saving state is entered from the first power-saving state, and the state-converted information that enters the second power-saving state from the first energy-saving state The overlay station is notified by the OAM device.
  • the OAM device When the capacity station is in the second power saving state, if the OAM device detects that the load of the coverage station where the capacity station is located is higher than the preset threshold H2, then sends a second activation request to all or part of the capacity stations in the coverage area, requesting the capacity station Entering the first power saving state; and notifying the coverage station of the state transition information that the capacity station enters the first power saving state from the second power saving state.
  • the second power saving state enters the first power saving state.
  • the OAM device When the capacity station is in the first power-saving state, if the OAM device detects that the coverage station is connected, the user switches the number of times per unit time of the target station to exceed the preset threshold H3, or performs switching by using the capacity station as the target base station. When the success rate is lower than the preset threshold H4, the OAM device sends a first activation request to the capacity station.
  • the OAM device sends a state transition information indicating that the capacity station enters a normal state from the first state to the coverage station.
  • the coverage station may delete the physical cell identifier of the capacity station from the EUTRAN frequency of the Type 19 message of the system information block of the coverage station and the cell item of each frequency table in the priority information table, and update the system information.
  • the capacity station receives the first activation request sent by the OAM device, the first energy-saving state enters a normal state. Specifically, the cell bearer parameter in the type 1 message of the system information block is set to “capable of carrying”, and the system information is updated. .
  • the capacity station when the capacity station is in the first power-saving state, the paging message sent by the MME for the idle user equipment may be received, but the paging message is not sent from the air interface; the capacity station may send the connected user equipment.
  • System information such as main information block, system information blocks 1 to 3 and system information block 6, without transmitting other system information; the capacity station normally transmits other common signals, including pilot signals and synchronization signals; and the execution source base station is located Covering the handover of the station, rejecting the source base station as all of the coverage stations Switch.
  • the capacity station When the capacity station is in the second power-saving state, it completely sleeps or shuts down and retains the interface with the OAM device.
  • the coverage station is a Global Access Telecommunications System (GSM) or an Enhanced Data Rate GSM (EDGE) Radio Access Network (GERAN) cell
  • GSM Global Access Telecommunications System
  • EDGE Enhanced Data Rate GSM
  • GERAN Radio Access Network
  • the capacity is When the station is an EUTRAN cell, the base station energy saving method is similar to the above method when the coverage station is a UTRAN cell, and the base station energy saving method when the capacity station is an EUTRAN cell is similar, the difference is:
  • the system information of the connected-connected user equipment includes the main information block, the system information blocks 1 to 3, and the system information block 7.
  • the base station in this embodiment may be an overlay station as shown in Figures la and lb, and the structure is shown in Figure 9, including:
  • the load detecting unit 10 is configured to detect whether the load of the coverage station is higher than a preset value
  • the load detection unit 10 may detect, but is not limited to, one or more of the following information: the number of connected users of the coverage station, the downlink data volume of the coverage station, the air interface resource occupancy rate of the coverage station, and the like. .
  • the activation sending unit 11 is configured to: when the load detecting unit 10 detects that the load of the coverage station is higher than a preset value, send a second activation request to the capacity in the second power saving state within the coverage of the coverage station. And the second activation request is used to request the capacity station to enter the first power saving state from the second power saving state.
  • the activation sending unit 11 may send the second activation request to all the capacity stations in the coverage station to enter the first power saving state; or send the second activation request to the capacity station in the coverage station, for example, the part of the capacity station may be the user in the coverage station.
  • the capacity station can only carry the connected state user equipment, and send the system information necessary for the connected state user equipment, and does not send the system information necessary for the non-connected user equipment.
  • the capacity station may further support the source base station as the handover of the coverage station where the capacity station is located, and reject the source base station as a handover that is not the coverage station where the capacity station is located, and reject the cell selection and cell reselection targeting the capacity station;
  • the station only sends a paging message for notifying the system information update, but does not send a search for paging the user equipment. Call the message.
  • the capacity station rejects the user equipment carrying any state, but the capacity station in the second power saving state retains the interface with the overlay station or the OAM device.
  • the activation transmitting unit 11 sends a second activation request to all or part of the coverage station in the second power saving state.
  • the capacity stations to activate these capacity stations to enter the first energy saving state. In this way, since the capacity station only carries the connected state user equipment in the first power saving state, the idle state user equipment is carried by the coverage station, thereby reducing the common signaling overhead that the capacity station needs to transmit, and achieving the purpose of energy saving of the capacity station.
  • the activation sending unit 11 of the base station activates the capacity station from the second power-saving state, that is, the sleep state or the shutdown state, to the first power-saving state, so that the capacity station does not carry the idle state user equipment first, so that the capacity is not completely determined.
  • the mobility of the idle state user equipment between the coverage station and the capacity station is avoided before the station needs to return to the normal state.
  • the base station of the embodiment of the present invention may include: a load detecting unit 10, an activation transmitting unit 11, a switching and accessing unit 12, a detecting and transmitting unit 13, and a first state receiving unit. 14.
  • the request receiving unit 15, the decision unit 16, the second state receiving unit 17, the first system updating unit 18, and the second system updating unit 19, wherein:
  • a switching and accessing unit 12 configured to: when the capacity station is in a first power-saving state, if a connected-mode user equipment in a coverage area of the capacity station is to perform handover with the capacity station as a target base station, the packet switching service and Switching to the capacity station; or, for when the capacity station is in the first power saving state, establishing a connection with the user equipment in the idle state, and by switching between the capacity station and the The user equipment accesses the capacity station.
  • the detecting and transmitting unit 13 is configured to: if the capacity station is in the first power saving state, when detecting that the connected state user equipment in the coverage of the coverage station uses the capacity station as the target base station, the number of switching times per unit time is higher than a preset value. Or sending a first activation request to the capacity station if the handover success rate of the handover of the target station is lower than a preset value; the first activation request is used to request the capacity station to A power saving state enters a normal state; the user equipment carrying the state in any state of the capacity station also allows cell selection or cell reselection of the base station with the capacity station as the destination.
  • the first state receiving unit 14 is configured to receive the capacity station to enter the first power saving state from the normal state. State transition information.
  • the request receiving unit 15 is configured to receive a request sent by the capacity station to enter a first power saving state from a normal state.
  • the determining unit 16 is configured to: after the request receiving unit 15 receives the request to enter the first power saving state from the normal state, if the network condition of the coverage station where the capacity station is located satisfies a preset condition, send a forward determination result to the
  • the preset condition includes, but is not limited to, at least one of the following information: the current load of the coverage station is lower than a preset value, and load statistics of the coverage station display the coverage station The load in the preset time is lower than the preset value, and the load statistics of the capacity station indicates that the load of the capacity station is lower than a preset value or the like within a preset time.
  • the second state receiving unit 17 is configured to receive state transition information sent by the capacity station from the first power saving state to the second power saving state.
  • the first system updating unit 18 is configured to: in the update system message of the base station of the embodiment, a cell reselection parameter of the capacity station, so that idle user equipment in the coverage of the coverage station is allowed to be reselected to the capacity station. .
  • a second system updating unit 19 configured to: in the update system message of the base station of the embodiment, a cell reselection parameter of the capacity station, so that idle user equipment in the coverage of the coverage station is prevented from being reselected to the capacity station .
  • the system of the overlay station may be updated by the first system updating unit 18.
  • the capacity station decides to enter the first power-saving state from the normal state
  • the state transition information entering the first power-saving state is notified to the coverage station, and after the first state receiving unit 14 receives the state transition information, the second system may be updated by the second system. 19 to update the system message of the overlay station;
  • the capacity station needs to enter the first power saving state from the normal state, and then sends a request to enter the first power saving state from the normal state.
  • the request receiving unit 15 receives the request
  • the determining unit 16 makes a decision. That is, when the network condition of the overlay station satisfies the preset condition, the forward decision result is entered into the capacity station, and the system message of the overlay station can be updated by the second system update unit 19; it can be understood that if the network status of the overlay station is not If the preset condition is met, the determining unit 16 may also enter the reverse decision result to the capacity station, and the capacity station is not allowed to enter the first power saving state from the normal state; When the capacity station enters the second power saving state from the first power saving state, the state transition information entering the second power saving state is notified to the second state receiving unit 17 of the coverage station to receive.
  • the handover and access unit 12 can switch the packet switched service and/or the circuit switched service.
  • the handover and access unit 12 may first establish a connection with the user equipment in the idle state, so that the idle state user equipment The user equipment becomes a connected state, and the user equipment is connected to the capacity station in the first power saving state by switching with the capacity station.
  • the energy saving operation of the base station can be performed by each unit in the foregoing base station according to the method shown in FIG. 2 to FIG. 4, so that the capacity station can be converted between the normal state and the first power saving state, and between the first power saving state and the second power saving state.
  • the capacity station is activated from the second power-saving state, that is, the sleep state or the shutdown state, the idle state user equipment is not carried, so that the idle state user equipment is avoided in the coverage station before it is completely determined whether the capacity station needs to return to the normal state. Mobility between the station and the capacity station.
  • the coverage station load detecting unit 20 is configured to detect whether the load of the coverage station is higher than a preset value; when detecting the load of the coverage station, the coverage station load detecting unit 20 may detect, but is not limited to, one or more of the following information. : The number of connected users of the coverage station, the amount of downlink data of the coverage station, and the air interface resource occupancy rate of the coverage station.
  • a status activation sending unit 21 configured to: when the coverage station load detecting unit 20 detects that the load of the coverage station is higher than a preset value, send a second activation request to the second energy-saving state in the coverage of the coverage station
  • the capacity station notifies the coverage station of state transition information of the capacity station from the second power saving state to the first power saving state, wherein the second activation request is used to request the capacity station to enter the first energy saving state from the second power saving state status.
  • the status activation sending unit 21 may send the second activation request to all the capacity stations in the coverage station to enter the first power saving state; or send the second activation request to the capacity station in the coverage station, for example, the part of the capacity station may be in the coverage station.
  • User equipment and capacity stations in a densely distributed area of traffic may be sent to all the capacity stations in the coverage station to enter the first power saving state; or send the second activation request to the capacity station in the coverage station, for example, the part of the capacity station may be in the coverage station.
  • the capacity station can only carry the connected state user equipment, and send the system information necessary for the connected state user equipment, and does not send the system information necessary for the non-connected user equipment.
  • Capacity station The source base station may also be supported as a handover of the coverage station where the capacity station is located, and the source base station is rejected as a handover of the coverage station where the capacity station is located, and the cell selection and cell reselection targeting the capacity station are rejected; and the capacity station only A paging message for notifying the system information update is sent without sending a paging message for paging the user equipment.
  • the capacity station rejects the user equipment carrying any state, but the capacity station in the second power saving state retains the interface with the overlay station or the OAM device.
  • the state activation transmitting unit 21 transmits a second activation request to all or part of the coverage station range.
  • the two energy-saving capacity stations activate the capacity stations to enter the first energy-saving state. In this way, since the capacity station only carries the connected state user equipment in the first power saving state, the idle user equipment is carried by the coverage station, thereby reducing the common signaling overhead that the capacity station needs to transmit, and achieving the purpose of energy saving of the capacity station.
  • the base station of the embodiment of the present invention may include: a coverage station load detecting unit 20, a status activation sending unit 21, a request and status sending unit 22, a first status notification unit 23, The status request receiving unit 24, the forward decision notification unit 25, and the second status notification unit 26, wherein:
  • the request and status sending unit 22 is configured to: if the capacity station is in the first power saving state, detecting that the connected state user equipment in the coverage area of the coverage station where the capacity station is located, the number of times of switching the unit time of the connected base station is higher than the preset Setting a value, or switching the success rate of the handover with the capacity station as the target base station is lower than a preset value, sending a first activation request to the capacity station, and entering the capacity station from the first power saving state
  • the state transition information of the normal state is notified to the overlay station; the first activation request is used to request the capacity station to enter a normal state from a first power saving state, and the capacity station carries a user equipment of any state in a normal state, Cell selection or cell reselection of the base station for the capacity station is allowed.
  • the first status notification unit 23 is configured to receive state transition information that the capacity station enters the first power saving state from the normal state, and notify the coverage station.
  • the status request receiving unit 24 is configured to receive a request sent by the capacity station to enter a first power saving state from a normal state.
  • the forward decision notification unit 25 is configured to receive the status request receiving unit 24 from the normal state After entering the request of the first energy saving state, if the network condition of the coverage station where the capacity station is located satisfies the preset condition, sending a forward judgment result to the capacity station, and entering the capacity station from the normal state into the first energy saving
  • the state transition information of the state is notified to the overlay station;
  • the preset condition includes at least one of the following information: the current load of the overlay station is lower than a preset value, and the load statistics information of the overlay station displays the The load is lower than a preset value in a preset time period after the coverage station, and the load statistics information of the capacity station indicates that the load is lower than a preset value or the like within a preset time period after the capacity station.
  • the second status notification unit 26 is configured to receive state transition information sent by the capacity station from the first power saving state to the second power saving state, and notify the coverage station.
  • the request and status transmitting unit 22 when the request and status transmitting unit 22 determines that the capacity station enters the normal state from the first power saving state, sends the first activation request to the capacity station, and enters the capacity state from the first power saving state to the normal state.
  • the state transition information entering the first power-saving state is sent to the OAM device, and the first state notification unit 23 notifies the coverage station of the received state-switching information;
  • the capacity station needs to enter the first power saving state from the normal state, and then sends a request to enter the first power saving state from the normal state.
  • the forward decision notification unit 25 The judgment is made, that is, when the network condition of the coverage station where the capacity station is located satisfies the preset condition, the forward decision result is entered into the capacity station, and the state transition information of the capacity station entering the first energy-saving state from the normal state is notified to the coverage station. It can be understood that if the network condition of the coverage station where the capacity station is located does not satisfy the preset condition, the reverse decision result is entered into the capacity station, and the capacity station continues to be in the original normal state;
  • the state transition information entering the second power saving state is transmitted to the OAM device, and the second state notification unit 17 notifies the coverage state of the received state transition information.
  • the cooperation of the units in the OAM device enables the capacity station to switch between the normal state and the first power saving state, and between the first power saving state and the second power saving state, so that the capacity station sleeps or turns off from the second power saving state.
  • the idle state user equipment is not carried first, thereby avoiding the mobility of the idle state user equipment between the coverage station and the capacity station before it is completely determined whether the capacity station needs to return to the normal state.
  • Another embodiment of the present invention provides another base station:
  • the base station in this embodiment may be a capacity station as shown in Figures la and lb, and the structure diagram is as shown in Figure 13, including:
  • the second activation request receiving unit 30 is configured to receive the coverage station where the capacity station is located or operate, manage, and maintain a second activation request sent by the OAM device, where the second activation request is used to request the capacity station to enter the second energy saving state. a state of energy saving;
  • the state transition unit 31 is configured to enter a first power-saving state from the current second power-saving state after the second activation request receiving unit 30 receives the second activation request;
  • the capacity station In the first power saving state, the capacity station only carries the connected state user equipment, and sends the system information necessary for the connected state user equipment, and does not send the system information necessary for the non-connected user equipment; the capacity station can also support the source base station as the The handover of the coverage station where the capacity station is located, and rejecting the handover of the source base station to the coverage station not located by the capacity station, and rejecting the cell selection and cell reselection targeting the capacity station; and the capacity station only sends the notification for updating the system information. Paging message without sending a paging message for paging the user equipment.
  • the capacity station rejects the user equipment carrying any state, but the capacity station in the second power saving state retains the interface with the overlay station or the OAM device.
  • the state transition unit 31 enters the first power saving state from the current second power saving state. In this way, since the capacity station only carries the connected state user equipment in the first power saving state, the idle state user equipment is carried by the coverage station, thereby reducing the public signaling overhead that the capacity station needs to transmit, and achieving the purpose of energy saving of the capacity station.
  • the state transition unit 31 in the capacity station of the embodiment of the present invention does not carry the idle state user equipment after being activated from the first power-saving state, that is, the sleep state or the off state, so that before the capacity station is completely determined whether the capacity station needs to return to the normal state, The mobility of the idle state user equipment between the coverage station and the capacity station is avoided.
  • the base station in this embodiment may include: a second activation request receiving unit 30, a state transition unit 31, a first activation request receiving unit 32, and a normal state unit 33, The detection notification unit 34, the status request transmitting unit 35, the first status unit 36, and the second status unit 37, wherein:
  • the first activation request receiving unit 32 is configured to receive the coverage station or operate, manage, and maintain a first activation request sent by the OAM device, where the first activation request is used to request the capacity station to enter from the first energy saving state.
  • the normal state the user equipment carrying the UE in any state in the normal state also allows the cell selection or cell reselection operation of the base station with the capacity station as the destination.
  • the normal state unit 33 is configured to enter a normal state from the current first power saving state after the first activation request receiving unit 32 receives the first activation request.
  • the entering normal state unit 33 may update the parameters of the cell access in the system message such that the idle state user equipment within the coverage of the capacity station resides at the capacity station, and the user equipment within the coverage of the capacity station is allowed
  • the cell selection and cell reselection of the target station are performed by the capacity station.
  • the detecting notification unit 34 is configured to detect whether the load of the capacity station is lower than a preset value, and if yes, enter a first power saving state from the current normal state, and enter the first energy saving state from the normal state
  • the conversion information informs the coverage station where the capacity station is located.
  • the detection notification unit 34 may detect, but is not limited to, one or more of the following information: the number of connected users of the capacity station, the downlink data volume of the capacity station, the air interface resource occupancy rate of the capacity station, and the like. .
  • the status request sending unit 35 is configured to detect whether the load of the capacity station is lower than a preset value, and if yes, send a request to enter the first power saving state from the normal state to the coverage station or the OAM device.
  • the first state unit 36 is configured to enter a first power saving state from the current normal state when receiving the forward decision result that the coverage station or the OAM device feeds back according to the request for entering the first power saving state from the normal state.
  • the first state unit 36 may move out the idle state user equipment in the coverage of the capacity station, and update the parameters of the cell access in the system message, so that the user equipment in the coverage of the capacity station is blocked.
  • the capacity station is the cell selection and cell reselection of the target base station.
  • a second state unit 37 configured to: when it is detected that the capacity station has no connected state user equipment within a preset time, enter a second power saving state from the current first power saving state, and save the capacity station from the first energy saving state
  • the state transition information of the state entering the second power saving state notifies the coverage station where the capacity station is located.
  • the normal state unit 33 enters the normal state from the current first energy-saving state;
  • the capacity station determines, by the detection notification unit 34, that it enters the first energy-saving state from the normal state, and notifies the state-changing information that enters the first energy-saving state to the coverage station where the capacity station is located;
  • the status request transmitting unit 35 of the capacity station enters the first power saving state from the normal state, and then transmits a request to enter the first power saving state from the normal state, when the first state unit 36 receives the coverage station or the OAM device enters. After the forward decision result, the first power saving state is entered from the normal state; if the first state unit 36 receives the reverse decision result of the coverage station or the OAM device entering, the original normal state is maintained;
  • the state transition information entering the second power saving state is notified to the coverage station where the capacity station is located.
  • the capacity station can be switched between the normal state and the first energy-saving state, and between the first energy-saving state and the second energy-saving state, so that the capacity station sleeps or shuts down from the second power-saving state.
  • the idle state user equipment is not carried first, thereby avoiding the mobility of the idle state user equipment between the coverage station and the capacity station before it is completely determined whether the capacity station needs to return to the normal state.
  • the embodiment of the present invention further provides a base station energy-saving system, including: a coverage station and at least one capacity station within the coverage of the coverage station, and the coverage station and the capacity station belong to the same wireless access technology network in the system of this embodiment. Community, where:
  • the coverage station is configured to detect whether the load of the coverage station is higher than a preset value, and if yes, send a second activation request to all or part of the capacity station in the second energy-saving state within the coverage of the coverage station,
  • the second activation request is used to request the capacity station to enter a first power saving state from a second power saving state; in the first power saving state, the capacity station only carries a connected state user equipment, and sends a connected state user equipment.
  • the necessary system information in the second power saving state, the capacity station rejects the user equipment carrying any state;
  • the capacity station is configured to receive a second activation request sent by the coverage station, and enter a first energy-saving state from the current second energy-saving state.
  • An embodiment of the present invention provides another base station energy-saving system, including: a coverage station, at least one capacity station within the coverage of the coverage station, and an operation management and maintenance OAM device, and the coverage station and the capacity station in the system of the embodiment belong to Different radio access technology network cells, where:
  • the OAM device is configured to detect whether a load of the coverage station is higher than a preset value, and if yes, Sending a second activation request to all or part of the coverage station in the second energy-saving state within the coverage of the coverage station, the second activation request for requesting the capacity station to enter the first energy-saving state from the second power-saving state, And notifying the coverage station of the state transition information that the capacity station enters the first power saving state from the second power saving state; in the first power saving state, the capacity station only carries the connected state user equipment, and sends the connected state user equipment The necessary system information; in the second power saving state, the capacity station rejects the user equipment carrying any state;
  • the capacity station is configured to receive a second activation request sent by the OAM device, and enter a first energy saving state from a current second energy saving state;
  • the coverage station is configured to receive state transition information that the capacity station sent by the OAM device enters the first power saving state from the second power saving state.
  • the method in the embodiment of the present invention implements energy saving of a base station by:
  • the capacity station When the capacity station meets certain conditions, it only carries the connected state user equipment, and the idle state user equipment is carried by the coverage station, so that the coverage station can be more fully utilized to continuously transmit common signaling to maintain basic network coverage, reducing capacity.
  • the station has a common signaling overhead for the idle state user equipment, so as to more effectively utilize the network topology structure and the wireless resources where the coverage station and the capacity station coexist, and achieve the purpose of energy saving of the capacity station.
  • the capacity station does not carry the idle state user equipment after being activated from the second power-saving state, that is, the sleep state or the shutdown state, but only bears the connected state user equipment, thereby avoiding whether the capacity station needs to return to the normal state before completely determining whether the capacity station needs to return to the normal state.
  • the program may be stored in a computer readable storage medium, and the storage medium may include: ROM, RAM, disk or CD, etc.

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Description

基站节能方法、 系统及装置
技术领域
本发明涉及通信技术领域， 特别涉及基站节能方法、 系统及装置。
背景技术
如今的无线通信业务已经从低速语音业务发展到高速多媒体数据业务，运 营商为了满足日益增长的高容量和高数据率需求，除了应用更高容量和传输速 率的无线接入技术外，往往会在提供基本的网络覆盖基石出上，部署异制式或同 制式异频点网络或者在热点区域部署容量站进行服务升级和容量增强。为了便 于描述， 以下统称提供基本网络覆盖的基站为覆盖站， 而进行服务升级或容量 增强且完全处于覆盖站覆盖范围内的基站为容量站（ Hotspot Cell )。
如图 la所示， 在宏基站 A覆盖范围内的热点区域部署以容量扩展为目的的 热点站 B、 C和 D, 则宏基站 A为覆盖站， 而热点站 C和 D为容量站； 如图 lb 所示， 在频点 fl上的基站 F为某一区域提供基本的网络覆盖， 异制式或同制式 异频点 f2的基站 E与基站 F共站址， 进行容量增强， 则基站 F为覆盖站， 基站 E 为容量站。
上述为了满足高容量和高数据率需求部署覆盖站和大量容量站，这样就加 剧了能量消耗， 则无线网络节能是一个迫在眉睫的问题。
现有的一种基站节能方法包括： 如果基站的负荷低于某个阈值， 管理系统 通知该基站执行第一预定操作， 即自行进入完全睡眠状态或自行关闭； 如果该 基站相同覆盖邻区的负荷高于某个阈值，管理系统通知该基站执行第二预定操 作， 即自行唤醒或自行开启。 但是在实际网络中， 由于用户分布不均匀， 基站 完全唤醒或开启后可能并不能有效地吸收同覆盖邻区的负荷，这样就会使得基 站完全唤醒或完全开启会造成资源和功率的浪费。
而另一种基站节能方法能包括： 当覆盖站检测到负载较高时， 激活其覆盖 范围内所有处于休眠状态的容量站；部分容量站激活后如果不能有效地吸收覆 盖站负载， 当再次满足进入休眠状态的条件时， 这部分容量站自行进入休眠状 态进行节能。
但是在容量站从进入休眠状态，到该容量站被激活后再次进入休眠状态的 过程中， 完全激活这部分容量站会造成资源和功率的浪费， 同时容量站覆盖范 围内的空闲态用户会在容量站和覆盖站之间产生移动性， 伴随着用户的移动， 尤其当覆盖站和容量站属于不同的制式时，可能会有大量的位置更新过程，。 发明内容
本发明实施例提供基站节能方法、 系统及装置， 实现基站节能。
本发明实施例提供一种基站节能方法， 包括：
检测覆盖站的负载是否高于预置的值；
如果所述覆盖站的负载高于预置的值，发送第二激活请求给所述覆盖站覆 盖范围内处于第二节能状态的容量站，所述第二激活请求用于请求所述容量站 从第二节能状态进入第一节能状态；
在所述第一节能状态下， 所述容量站只承载连接态用户设备， 并发送连接 态用户设备的系统信息； 在所述第二节能状态下， 所述容量站拒绝承载任何状 态的用户设备。
本发明实施例的另一种基站节能方法， 包括：
接收到所在覆盖站或操作、 管理和维护 OAM设备发送的第二激活请求， 所述第二激活请求用于请求容量站从第二节能状态进入第一节能状态；
从当前的第二节能状态进入第一节能状态；
在所述第一节能状态下， 所述容量站只承载连接态用户设备， 并发送连接 态用户设备的系统信息； 在所述第二节能状态下， 所述容量站拒绝承载任何状 态的用户设备。
本发明实施例提供的一种基站， 包括：
负载检测单元， 用于检测覆盖站的负载是否高于预置的值；
激活发送单元，用于当所述负载检测单元检测到所述覆盖站的负载高于预 置的值，发送第二激活请求给所述覆盖站覆盖范围内处于第二节能状态的容量 站， 所述第二激活请求用于请求所述容量站从第二节能状态进入第一节能状 态；
在第一节能状态下， 所述容量站只承载连接态用户设备， 并发送连接态用 户设备的系统信息； 在第二节能状态下， 所述容量站不承载任何状态的用户设 备。
本发明实施例还提供一种操作、 管理和维护 OAM设备， 包括： 覆盖站负载检测单元， 用于检测覆盖站的负载是否高于预置的值； 状态激活发送单元，用于当所述覆盖站负载检测单元检测到所述覆盖站的 负载高于预置的值，发送第二激活请求给所述覆盖站覆盖范围内处于第二节能 状态的容量站，并将容量站从第二节能状态进入第一节能状态的状态转换信息 通知所述覆盖站，所述第二激活请求用于请求所述容量站从第二节能状态进入 第一节能状态；
在第一节能状态下， 所述容量站只承载连接态用户设备， 并发送连接态用 户设备的系统信息； 在第二节能状态下， 所述容量站不承载任何状态的用户设 备。
本发明实施例还提供另一种基站， 包括：
第二激活请求接收单元，用于接收到所在覆盖站或操作、管理和维护 OAM 设备发送的第二激活请求，所述第二激活请求用于请求容量站从第二节能状态 进入第一节能状态；
状态转换单元， 用于当所述第二激活请求接收单元接收到第二激活请求 后， 从当前的第二节能状态进入第一节能状态；
在所述第一节能状态下， 所述容量站只承载连接态用户设备， 并发送连接 态用户设备的系统信息； 在所述第二节能状态下， 所述容量站拒绝承载任何状 态的用户设备。
本发明实施例还提供一种基站节能系统， 包括： 覆盖站和所述覆盖站覆盖 范围内的至少一个容量站；
所述覆盖站， 用于检测覆盖站的负载是否高于预置的值， 如果是， 则发送 第二激活请求给所述覆盖站覆盖范围内处于第二节能状态的容量站，所述第二 激活请求用于请求所述容量站从第二节能状态进入第一节能状态；在所述第一 节能状态下， 所述容量站只承载连接态用户设备， 并发送连接态用户设备的系 统信息； 在所述第二节能状态下， 所述容量站拒绝承载任何状态的用户设备； 所述容量站， 用于接收到所在覆盖站发送的第二激活请求，从当前的第二 节能状态进入第一节能状态。
本发明实施例还提供另一种基站节能系统， 包括： 覆盖站、 所述覆盖站覆 盖范围内的至少一个容量站和操作管理和维护 OAM设备； 所述 OAM设备， 用于检测覆盖站的负载是否高于预置的值， 如果是， 则 发送第二激活请求给所述覆盖站覆盖范围内处于第二节能状态的容量站，所述 第二激活请求用于请求所述容量站从第二节能状态进入第一节能状态，并将容 量站从第二节能状态进入第一节能状态的状态转换信息通知所述覆盖站；在所 述第一节能状态下， 所述容量站只承载连接态用户设备， 并发送连接态用户设 备的系统信息； 在所述第二节能状态下， 所述容量站拒绝承载任何状态的用户 设备；
所述容量站， 用于接收到所述 OAM设备发送的第二激活请求， 从当前的 第二节能状态进入第一节能状态；
所述覆盖站，用于接收所述 OAM设备发送的容量站从第二节能状态进入 第一节能状态的状态转换信息。
在本发明实施例中的基站节能方法包括：如果检测到覆盖站的负载高于预 置的值，则发送第二激活请求给该覆盖站范围内的所有或部分处于第二节能状 态的容量站， 来激活这些容量站进入第一节能状态。这样由于在第一节能状态 下容量站仅承载连接态用户设备， 而空闲态的用户设备由覆盖站来承载，从而 减少了容量站需要发送的公共信令开销， 达到容量站节能的目的。
且本发明实施例中容量站从第二节能状态即休眠或关闭状态激活后，先不 承载空闲态用户设备， 避免了空闲态用户设备在覆盖站和容量站之间的移动 性。
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筒单地介绍，显而易见地， 下面描述 中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付 出创造性劳动性的前提下， 还可以根据这些附图获得其他的附图。
图 la是现有技术中覆盖站和容量站的结构示意图；
图 lb是现有技术中另一种覆盖站和容量站的结构示意图；
图 2是本发明实施例提供的一种基站节能方法的流程图；
图 3是本发明实施例提供的另一种基站节能方法的流程图；
图 4是本发明实施例提供的另一种基站节能方法的流程图； 图 5是本发明实施例提供的另一种基站节能方法的流程图；
图 6是本发明实施例提供的容量站的三种状态之间转换的结构示意图； 图 7a是本发明实施例提供的一种具体应用例中容量站从正常状态进入第 一节能状态的流程图；
图 7b是本发明实施例提供的一种具体应用例中容量站从第一节能状态进 入正常状态的流程图；
图 8a是本发明实施例提供的另一种具体应用例中容量站从正常状态进入 第一节能状态的流程图；
图 8b是本发明实施例提供的另一种具体应用例中容量站从第一节能状态 进入正常状态的流程图；
图 9是本发明实施例提供的一种覆盖站的结构示意图；
图 10是本发明实施例提供的另一种覆盖站的结构示意图；
图 11是本发明实施例提供的一种 OAM设备的结构示意图；
图 12是本发明实施例提供的另一种 OAM设备的结构示意图；
图 13是本发明实施例提供的一种容量站的结构示意图；
图 14是本发明实施例提供的另一种容量站的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清 楚、 完整地描述， 显然， 所描述的实施例仅仅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。
本发明实施例提供的一种基站节能方法：
适用于如图 la和 lb所示的系统中， 本实施例的方法是覆盖站或操作、 管 理和维护 ( Operation Administration and Maintenance, OAM )设备所执行的方 法， 其中 OAM设备是系统中用来管理覆盖站和容量站的设备， 流程图如图 2 所示， 包括：
步骤 101 , 检测覆盖站的负载是否高于预置的值， 如果高于， 则执行步骤 102; 如果不高于， 则结束流程。
在检测覆盖站的负载时， 可以通过检测但不限于如下的一种或几种信息： 覆盖站的连接态用户数， 覆盖站的下行数据量， 覆盖站的空口资源占用率等。 步骤 102, 发送第二激活请求给该覆盖站覆盖范围内处于第二节能状态的 容量站， 这里第二激活请求用于请求容量站从第二节能状态进入第一节能状 态。
可以理解，覆盖站或 OAM设备可以将第二激活请求发送给覆盖站内所有 的容量站进入第一节能状态；也可以将第二激活请求发送给覆盖站内部分的容 量站，比如这部分容量站可以是覆盖站内用户设备和业务量分布密集区域的容 量站， 从而可以根据用户设备的分布来激活容量站。
其中在第一节能状态下， 容量站可以只承载连接态用户设备， 并发送连接 态用户设备必需的系统信息， 而不发送非连接态用户设备必须的系统信息。容 量站还可以支持源基站为该容量站所在覆盖站的切换，而拒绝源基站为非该容 量站所在覆盖站的切换，且拒绝以该容量站为目标的小区选择和小区重选； 且 容量站仅发送用于通知系统信息更新的寻呼消息，而不发送用于寻呼用户设备 的寻呼消息。
在第二节能状态即休眠或关闭状态下，容量站拒绝承载任何状态的用户设 备， 但是第二节能状态下的容量站保留与覆盖站或 OAM设备之间的接口。
需要说明的是， 如果步骤 101和 102是由 OAM设备执行的， 即由 OAM 设备进行检测负载并发送第二激活请求， 则 OAM设备还需要将容量站从第二 节能状态进入到第一节能状态的状态转换信息通知该容量站所在的覆盖站，这 样覆盖站就能知道覆盖范围内每个容量站的状态，从而在切换和小区重选时会 考虑每个容量站的状态。
当覆盖站内的容量站处于第一节能状态时，如果连接态的用户设备以该容 量站为目标基站进行切换，则覆盖站或 OAM设备可以将该覆盖站内的分组交 换（Packet Switching, PS )业务和 /或电路交换 ( Circuit Switching, CS )业务 切换到该容量站。
且如果空闲态的用户设备想要接入处于第一节能状态的容量站，则首先需 要在该容量站所在覆盖站与空闲态的用户设备之间建立连接，这样使得空闲态 用户设备成为连接态用户设备；并通过覆盖站与容量站之间的切换将该用户设 备接入到处于第一节能状态的容量站。 可见，在本发明实施例中的基站节能方法包括： 如果检测到覆盖站的负载 高于预置的值，则发送第二激活请求给该覆盖站范围内的所有或部分处于第二 节能状态的容量站， 来激活这些容量站进入第一节能状态。这样由于在第一节 能状态下容量站仅承载连接态用户设备， 而空闲态的用户设备由覆盖站来承 载， 从而减少了容量站需要发送的公共信令开销， 达到容量站节能的目的。
且本发明实施例中容量站从第二节能状态即休眠或关闭状态激活后，先不 承载空闲态用户设备，从而在没有完全确定该容量站是否需要回到正常状态之 前， 避免了空闲态用户设备在覆盖站和容量站之间的移动性。
参考图 3所示， 在一个具体的实施例中， 覆盖站或 OAM设备还可以通过 如下的步骤来实现基站的节能，本实施例中容量站从第一节能状态进入正常状 态：
A1： 检测覆盖站覆盖范围内的连接态用户设备以处于第一节能状态的容 量站为目标基站的单位时间切换次数是否高于预置的值，如果是， 则执行步骤 B1 , 如果不是， 则结束流程。
B1: 发送第一激活请求给处于第一节能状态的容量站。
这里第一激活请求用于请求容量站从第一节能状态进入正常状态，容量站 在正常状态下可以承载任何状态的用户设备，也允许以该容量站为目的基站的 小区选择或小区重选等。
C1:覆盖站或 OAM设备还可以检测以处于第一节能状态的容量站为目标 基站进行切换的切换成功率是否低于预置的值， 如果是， 则执行步骤 B1 , 如 果不是， 则结束流程。
需要说明的是， 如果步骤 A1到 C1是由覆盖站执行的， 由于在第一节能 状态下， 容量站是拒绝承载空闲态的用户设备， 当该容量站从第一节能状态进 入正常状态后， 可以允许接入空闲态的用户设备。 则覆盖站还可以更新该覆盖 站的系统消息中容量站的小区重选参数，使得覆盖站覆盖范围内的空闲用户设 备被允许重选到容量站。
如果步骤 A1到 C1是由 OAM设备执行的，即由 OAM设备进行检测单位 时间切换次数或切换成功率， 并在发送第一激活请求之后， OAM设备还需要 将容量站从第一节能状态进入正常状态的状态转换信息通知覆盖站，覆盖站就 能知道覆盖范围内每个容量站的状态，从而在切换和小区重选时会考虑每个容 量站的状态；
且覆盖站在接收到容量站从第一节能状态进入正常状态的状态转换信息 后， 可以更新该覆盖站的系统消息中容量站的小区重选参数，使得覆盖站覆盖 范围内的空闲用户设备被允许重选到容量站，方便覆盖站范围内用户设备进行 的小区重选等操作；而覆盖站在接收到状态转换信息后也可以不进行上述的更 新系统消息的操作。
参考图 4所示， 在一个具体的实施例中， 覆盖站或 OAM设备还可以通过 如下的步骤来实现基站的节能，本实施例中由覆盖站或 OAM设备决定容量站 从正常状态进入第一节能状态：
A2: 接收容量站发送的从正常状态进入第一节能状态的请求；
可以理解， 当容量站处于正常状态， 当该容量站检测到容量站的负载低于 预置的值，则会发送进入第一节能状态的请求给该容量站所在覆盖站，或 OAM 设备。
B2: 确定该容量站所在覆盖站的网络状况是否满足预置的条件， 如果是， 则执行步骤 C2; 如果不是， 则执行步骤 D2;
这里预置的条件包括但不限于如下的至少一种信息：覆盖站当前的负载低 于预置的值，覆盖站的负载统计信息显示覆盖站在之后的预置时间内负载低于 预置的值，容量站的负载统计信息显示容量站在之后的预置时间内负载低于预 置的值等。
C2: 发送正向判决结果给容量站， 允许容量站从正常状态进入到第一节 能状态；
D2: 发送反向判决结果给容量站， 不允许容量站从正常状态进入到第一 节能状态。
需要说明的是， 如果步骤 A2到 D2是由覆盖站执行的， 则覆盖站还可以 更新该覆盖站的系统消息中容量站的小区重选参数，使得覆盖站覆盖范围内的 空闲用户设备被阻止重选到容量站，方便覆盖站范围内用户设备进行的小区重 选等操作。
如果步骤 A2到 D2是由 OAM设备执行的，即由 OAM设备进行接收第一 节能状态的请求并发送判决结果， 如果 OAM设备发送了正向判决结果， 还需 要将容量站从正常状态进入第一节能状态的状态转换信息通知覆盖站，覆盖站 就能知道覆盖范围内每个容量站的状态，从而在切换和小区重选时会考虑每个 容量站的状态；
且覆盖站在接收到容量站从正常状态进入第一节能状态的状态转换信息 后，可以更新该覆盖站的系统消息中容量站的小区重选参数，使得覆盖站覆盖 范围内的空闲用户设备被阻止重选到容量站；而覆盖站在接收到状态转换信息 后也可以不进行上述的更新系统消息的操作。
在其他具体的实施例中，可以由容量站自己来决定是否从正常状态进入第 一节能状态， 即当容量站检测到该容量站的负载低于预置的值， 则决定进入第 一节能状态，并发送从正常状态进入第一节能状态的状态转换信息通知该容量 站所在的覆盖站； 这样当覆盖站接收到状态转换信息，可以更新覆盖站的系统 消息中该容量站的小区重选参数，使得覆盖站覆盖范围内的空闲用户设备被阻 止重选到该容量站。
且当容量站在检测到在预置的时间内该容量站中没有连接态的用户设备， 则决定从第一节能状态进入第二节能状态即休眠或关闭状态，并发送容量站从 第一节能状态进入第二节能状态的状态转换信息直接通知该容量站所在覆盖 站， 或通过 OAM设备通知该容量站所在覆盖站。
本发明实施例提供的另一种基站节能方法：
适用于如图 la和 lb所示的系统中，本实施例的方法是容量站所执行的方 法， 流程图如图 5所示， 包括：
步骤 201 , 接收到容量站所在覆盖站或 OAM设备发送的第二激活请求， 这里第二激活请求用于请求容量站从第二节能状态进入第一节能状态。
可以理解， 当覆盖站或 OAM设备检测到覆盖站的负载高于预置的值， 则 需要激活覆盖站覆盖范围内的所有或部分处于第二节能状态的容量站，并发送 第二激活请求给这些容量站。
步骤 202 , 从当前的第二节能状态进入第一节能状态。
其中在第一节能状态下， 容量站只承载连接态用户设备， 并发送连接态用 户设备必需的系统信息， 而不发送非连接态用户设备必须的系统信息； 容量站 还可以支持源基站为该容量站所在覆盖站的切换，而拒绝源基站为非该容量站 所在覆盖站的切换，且拒绝以该容量站为目标的小区选择和小区重选； 且容量 站仅发送用于通知系统信息更新的寻呼消息，而不发送用于寻呼用户设备的寻 呼消息。
在第二节能状态即休眠或关闭状态下，容量站拒绝承载任何状态的用户设 备， 但是第二节能状态下的容量站保留与覆盖站或 OAM设备之间的接口。
可见，在本发明实施例中的基站节能方法包括： 当容量站接收到覆盖站或 OAM设备发送的第二激活请求， 由当前的第二节能状态进入第一节能状态。 这样由于在第一节能状态下容量站仅承载连接态用户设备，而空闲态的用户设 备由覆盖站来承载，从而减少了容量站需要发送的公共信令开销， 达到容量站 节能的目的。
且本发明实施例中容量站从第一节能状态即休眠或关闭状态激活后，先不 承载空闲态用户设备，从而在没有完全确定该容量站是否需要回到正常状态之 前， 避免了空闲态用户设备在覆盖站和容量站之间的移动性。
在一个具体的实施例中， 当容量站处于第一节能状态时：
当覆盖站或 OAM设备检测到覆盖站覆盖范围内的连接态用户设备以处于 第一节能状态的容量站为目标基站的单位时间切换次数高于预置的值，或检测 到以处于第一节能状态的容量站为目标基站进行切换的切换成功率低于预置 的值， 则会发送第一激活请求给容量站， 其中第一激活请求用于请求容量站从 第一节能状态进入正常状态； 当容量站接收到第一激活请求后，从当前的第一 节能状态进入正常状态。
可以理解， 容量站在正常状态下能承载任何状态的用户设备，也允许以该 容量站为目的基站的小区选择或小区重选等操作。
具体地，在检测容量站的负载时， 容量站可以通过检测但不限于如下的一 种或几种信息： 容量站的连接态用户数， 容量站的下行数据量， 容量站的空口 资源占用率等。
且容量站在从第一节能状态进入正常状态时，可以更新该容量站的系统消 息中小区接入的参数， 使得容量站覆盖范围内的空闲态用户设备驻留在容量 站，且使得该容量站覆盖范围内的用户设备被允许以该容量站为目标基站的小 区选择和小区重选。
在另一个具体的实施例中， 当容量站处于正常状态时：
容量站可以自己决定是否进入第一节能状态， 具体地： 容量站检测该容量 站的负载是否低于预置的值，如果是，则从当前的正常状态进入第一节能状态， 并将容量站从正常状态进入第一节能状态的转换信息通知容量站所在的覆盖 站； 如果不是， 则容量站继续处于正常状态下。
具体地， 容量站在从正常状态进入第一节能状态时， 迁出容量站覆盖范围 内的空闲态用户设备， 并更新该容量站的系统消息中小区接入的参数，使得该 容量站覆盖范围内的用户设备被阻止以容量站为目标基站的小区选择和小区 重选。
在另一个具体的实施例中， 当容量站处于正常状态时：
可以由该容量站所在覆盖站或 OAM设备来决定是否进行第一节能状态， 具体地： 容量站检测该容量站的负载是否低于预置的值， 如果是， 则发送从正 常状态进入第一节能状态的请求给覆盖站或 OAM设备。
这样覆盖站或 OAM设备可以按照上述步骤 A2到 D2的步骤来进行容量 站是否进入第一节能状态的判决， 在此不再赘述， 当容量站接收到覆盖站或 OAM设备根据进入第一节能状态的请求反馈的正向判决结果， 则从当前的正 常状态进入第一节能状态；如果容量站接收到覆盖站或 OAM设备反馈的反向 判决结果， 则继续处于正常状态下。
在其他具体的实施例中， 当容量站处于第一节能状态时：
如果容量站检测到在预置的时间内该容量站没有连接态用户设备，则从当 前的第一节能状态进入第二节能状态，并将容量站从第一节能状态进入第二节 能状态的状态转换信息直接通知覆盖站， 或通过 OAM设备通知覆盖站， 这样 覆盖站就可以知道其覆盖范围内的容量站所处的状态，并进行相应的切换和小 区选择操作。
可见， 参考图 6所示， 本发明实施例中， 容量站由三个状态即正常状态、 第一节能状态和第二节能状态， 当容量站处于正常状态时，如果该容量站的负 载较低即低于预置的值， 则会进入第一节能状态； 而处于第一节能状态的容量 站接收到覆盖站或 OAM设备的第一激活请求后， 就会进入正常状态。 且处于第一节能状态的容量在一定的时间即在预置的时间内没有连接态 的用户设备， 则从第一节能状态进入第二节能状态即休眠或关闭状态； 当容量 站在第二节能状态时， 如果接收到覆盖站或 OAM设备的第二激活请求后， 就 会进入第一节能状态。
需要说明的是， 本发明实施例中， 容量站在正常状态和第二节能状态之间 是不能直接转换的。
以下以一个具体的实施例来说明本发明的基站节能方法：
本实施例中覆盖站和容量站均是演进的全球地面无线接入网 （ Evoled UTRAN, EUTRAN ) 小区； 其中覆盖站提供基本的网络覆盖， 容量站处于覆 盖站覆盖范围内， 并被覆盖站完全覆盖。
( 1 )参考图 7a所示， 容量站由正常状态进入第一节能状态：
容量站是否从正常状态进行第一节能状态可以由容量站自己决定，也可以 由该容量站所在覆盖站或 OAM设备决定。
301、 当容量站处于正常状态时， 如果检测到该容量站的负载低于预设门 限值 HI , 则设置该容量站的系统信息块的类型 1 消息（System Information Block Typel message ) 中小区承载（ cell Barred )参数为 "禁止承载"， 在 T1时 间后， 该容量站由正常状态进入第一节能状态。
其中检测的负载至少包含以下几种因素中的一种： 容量站的连接态用户 数、 容量站的下行数据量和容量站的空口资源占用率等。
302、容量站将由正常状态接入第一节能状态的状态转换信息通知覆盖站。
303、 覆盖站接收到容量站由正常状态进入第一节能状态的通知后， 如果 覆盖站与容量站属于同频小区， 则覆盖站可以将该容量站的物理小区标识 ( phys Cell Id )添加到覆盖站的系统信息块的类型 4消息（ System Information Block Type4 message ) 的同频小区黑名单列表 ( Intra Freq Black Cell List ) 中， 并更新系统信息；
如果覆盖站与容量站属于异频小区，则覆盖站可以将该容量站的物理小区 标识（ phys Cell Id )添加到覆盖站系统信息块的类型 5消息（ System Information Block Type5 message ) 的异频小区黑名单列表 ( Inter Freq Black Cell List ) 中， 并更新系统信息。 ( 2 )容量站由第一节能状态进入第二节能状态：
当容量站处于第一节能状态时， 如果在预设时间 T2内没有连接态用户设 备， 则由第一节能状态进入第二节能状态， 并将由第一节能状态进入第二节能 状态的状态转换信息通知覆盖站。
( 3 )容量站由第二节能状态进入第一节能状态：
当容量站处于第二节能状态时，如果该容量站所在覆盖站检测到覆盖站的 负载高于预设门限 H2, 则向覆盖范围内的所有或部分容量站发送第二激活请 求， 请求容量站进入第一节能状态。
当容量站接收到覆盖站发送的第二激活请求，由第二节能状态进入第一节 能状态。
( 4 )参考图 7b所示， 容量站由第一节能状态进入正常状态：
304、 当容量站处于第一节能状态时， 如果覆盖站检测到覆盖站连接态用 户以容量站为目标基站的单位时间切换次数超过预设门限 H3 , 或者以容量站 为目标基站进行切换的切换成功率低于预设门限 H4时， 覆盖站向容量站发送 第一激活请求。
305、 如果覆盖站与容量站属于同频小区， 则在发送第一激活请求的 T3 时间后， 覆盖站可以将容量站的物理小区标识从覆盖站的系统信息块的类型 4 消息的同频小区黑名单列表中删除， 并更新系统信息；
如果覆盖站与容量站属于异频小区， 则在发送第一激活请求的 T3时间后 覆盖站可以将容量站的物理小区标识从覆盖站系统信息块的类型 5 消息的异 频小区黑名单列表中删除， 并更新系统信息。
306、 当容量站接收到覆盖站发送的第一激活请求， 由第一节能状态进入 正常状态，具体地，设置系统信息块的类型 1消息中小区承载参数为"能承载"， 并更新系统信息。
本实施例中， 当容量站处于第一节能状态时， 可以接收移动管理实体
( Mobility Management Entity, MME )下发的针对空闲态用户设备的寻呼消息， 但不从空口发送该寻呼消息；
且如果容量站与覆盖站属于同频小区，容量站可以下发连接态用户设备的 系统信息，比如主信息块（ Master Information Block, MIB )、系统信息块（ System Information Block, SIB ) 1到 4, 而不发送其他系统信息； 如果容量站与覆盖 站属于异频小区， 则容量站可以下发连接态用户设备的系统信息， 比如主信息 块、 系统信息块 1到 3及系统信息块 5 , 而不发送其他系统信息；
在第一节能状态下， 容量站正常发送其他公共信号， 包括导频信号和同步 信号； 且执行源基站为所在覆盖站的切换，拒绝源基站为非所在覆盖站的所有 切换。
当容量站处于第二节能状态时， 完全休眠或关闭， 并保留与覆盖站之间的 接口。
以下以另一个具体的实施例来说明本发明的基站节能方法：
本实施例中覆盖站和容量站属于不同的无线接入小区，比如覆盖站为全球 地面无线接入网 ( Universal Terrestrial Radio Access Network , UTRAN )小区， 而容量站是 EUTRAN小区。 其中覆盖站提供基本的网络覆盖， 容量站处于覆 盖站覆盖范围内， 并被覆盖站完全覆盖。
( 1 )参考图 8a所示， 容量站由正常状态进入第一节能状态：
容量站是否从正常状态进行第一节能状态可以由容量站自己决定，也可以 由 OAM设备决定。
401、 当容量站处于正常状态时， 如果检测到该容量站的负载低于预设门 限值 HI ,则设置该容量站的系统信息块的类型 1消息中小区承载参数为"禁止 承载"， 在 T1时间后， 该容量站由正常状态进入第一节能状态。
其中检测的负载至少包含以下几种因素中的一种： 容量站的连接态用户 数、 容量站的下行数据量和容量站的空口资源占用率等。
402、 容量站将由正常状态接入第一节能状态的状态转换信息通过 OAM 设备通知覆盖站。
由于本实施例中容量站与覆盖站属于不同的接入网小区， 则需要通过 OAM设备来传输容量站与覆盖站之间的信息。
403、 覆盖站接收到容量站由正常状态进入第一节能状态的通知后， 覆盖 站可以将该容量站的物理小区标识， 添加到覆盖站的系统信息块的类型 19消 息的 EUTRAN频率和优先权信息表 ( EUTRAN Frequency and priority info list ) 中的每频率小区黑名单（ Black Listed cells per freq list ) 中， 并更新系统信息。 ( 2 )容量站由第一节能状态进入第二节能状态：
当容量站处于第一节能状态时， 如果在预设时间 T2内没有连接态用户设 备， 则由第一节能状态进入第二节能状态， 并将由第一节能状态进入第二节能 状态的状态转换信息通过 OAM设备通知覆盖站。
( 3 )容量站由第二节能状态进入第一节能状态：
当容量站处于第二节能状态时，如果 OAM设备检测到该容量站所在覆盖 站的负载高于预设门限 H2, 则向覆盖范围内的所有或部分容量站发送第二激 活请求，请求容量站进入第一节能状态； 并将容量站从第二节能状态进入第一 节能状态的状态转换信息通知覆盖站。
当容量站接收到 OAM设备发送的第二激活请求， 由第二节能状态进入第 一节能状态。
( 4 )参考图 8b所示， 容量站由第一节能状态进入正常状态：
404、 当容量站处于第一节能状态时， 如果 OAM设备检测到覆盖站连接 态用户以容量站为目标基站的单位时间切换次数超过预设门限 H3, 或者以容 量站为目标基站进行切换的切换成功率低于预设门限 H4时， 由 OAM设备向 容量站发送第一激活请求。
405、 OAM设备发送容量站从第一状态进入正常状态的状态转换信息通知 覆盖站。
406、 覆盖站可以将容量站的物理小区标识从覆盖站的系统信息块的类型 19消息的 EUTRAN频率和优先权信息表中的每个频率表的小区项中删除， 并 更新系统信息。
407、 当容量站接收到 OAM设备发送的第一激活请求， 由第一节能状态 进入正常状态， 具体地， 设置系统信息块的类型 1消息中小区承载参数为"能 承载"， 并更新系统信息。
本实施例中， 当容量站处于第一节能状态时， 可以接收 MME下发的针对 空闲态用户设备的寻呼消息，但不从空口发送该寻呼消息； 容量站可以下发连 接态用户设备的系统信息，比如主信息块、系统信息块 1到 3及系统信息块 6, 而不发送其他系统信息； 容量站正常发送其他公共信号， 包括导频信号和同步 信号； 且执行源基站为所在覆盖站的切换，拒绝源基站为非所在覆盖站的所有 切换。
当容量站处于第二节能状态时， 完全休眠或关闭， 并保留与 OAM设备之 间的接口。
需要说明的是，在其他具体的实施例中，如果覆盖站为全球移动通信系统 ( GSM )或增强型数据速率 GSM技术（ EDGE )的无线接入网 （ Radio Access Network, GERAN ) 小区， 而容量站是 EUTRAN小区时， 基站节能方法上述 的当覆盖站为 UTRAN小区， 而容量站是 EUTRAN小区时的基站节能方法类 似， 不同的是：
当容量站处于第一节能状态时，下发连接态用户设备的系统信息包括主信 息块、 系统信息块 1到 3及系统信息块 7。
本发明实施例提供的一种基站：
本实施例的基站可以是如图 la和 lb中的覆盖站，结构示意图如图 9所示， 包括：
负载检测单元 10, 用于检测覆盖站的负载是否高于预置的值；
负载检测单元 10在检测覆盖站的负载时， 可以通过检测但不限于如下的 一种或几种信息： 覆盖站的连接态用户数， 覆盖站的下行数据量， 覆盖站的空 口资源占用率等。
激活发送单元 11 , 用于当所述负载检测单元 10检测到所述覆盖站的负载 高于预置的值，发送第二激活请求给所述覆盖站覆盖范围内的处于第二节能状 态的容量站，所述第二激活请求用于请求所述容量站从第二节能状态进入第一 节能状态。
激活发送单元 11可以将第二激活请求发送给覆盖站内所有的容量站进入 第一节能状态； 也可以将第二激活请求发送给覆盖站内部分的容量站， 比如这 部分容量站可以是覆盖站内用户设备和业务量分布密集区域的容量站。
在第一节能状态下， 容量站可以只承载连接态用户设备， 并发送连接态用 户设备必需的系统信息， 而不发送非连接态用户设备必须的系统信息。容量站 还可以支持源基站为该容量站所在覆盖站的切换，而拒绝源基站为非该容量站 所在覆盖站的切换，且拒绝以该容量站为目标的小区选择和小区重选； 且容量 站仅发送用于通知系统信息更新的寻呼消息，而不发送用于寻呼用户设备的寻 呼消息。
在第二节能状态即休眠或关闭状态下，容量站拒绝承载任何状态的用户设 备， 但是第二节能状态下的容量站保留与覆盖站或 OAM设备之间的接口。
本实施例的基站中： 如果负载检测单元 10检测到覆盖站的负载高于预置 的值， 则激活发送单元 11发送第二激活请求给该覆盖站范围内的所有或部分 处于第二节能状态的容量站， 来激活这些容量站进入第一节能状态。这样由于 在第一节能状态下容量站仅承载连接态用户设备，而空闲态的用户设备由覆盖 站来承载，从而减少了容量站需要发送的公共信令开销， 达到容量站节能的目 的。
且本发明实施例中基站的激活发送单元 11将容量站从第二节能状态即休 眠或关闭状态激活到第一节能状态，使得容量站先不承载空闲态用户设备，从 而在没有完全确定该容量站是否需要回到正常状态之前，避免了空闲态用户设 备在覆盖站和容量站之间的移动性。
参考图 10所示，在一个具体的实施例中， 本发明实施例的基站可以包括： 负载检测单元 10、 激活发送单元 11、 切换和接入单元 12、 检测发送单元 13、 第一状态接收单元 14、请求接收单元 15、判决单元 16、第二状态接收单元 17、 第一系统更新单元 18和第二系统更新单元 19, 其中：
切换和接入单元 12, 用于当所述容量站处于第一节能状态， 如果该容量 站所在覆盖站范围内的连接态用户设备以所述容量站为目标基站进行切换，将 分组交换业务和 /或电路交换业务切换到所述容量站； 或， 用于当所述容量站 处于第一节能状态， 与空闲态的用户设备建立连接， 并通过与所述容量站之间 的切换将所述用户设备接入到所述容量站。
检测发送单元 13, 用于如果容量站处于第一节能状态， 当检测到所述覆 盖站覆盖范围内的连接态用户设备以所述容量站为目标基站的单位时间切换 次数高于预置的值，或以所述容量站为目标基站进行切换的切换成功率低于预 置的值， 则发送第一激活请求给所述容量站； 所述第一激活请求用于请求所述 容量站从第一节能状态进入正常状态；所述容量站在正常状态下承载任何状态 的用户设备， 也允许以该容量站为目的基站的小区选择或小区重选等。
第一状态接收单元 14, 用于接收容量站从正常状态进入第一节能状态的 状态转换信息。
请求接收单元 15 , 用于接收所述容量站发送的从正常状态进入第一节能 状态的请求。
判决单元 16, 用于当请求接收单元 15接收到从正常状态进入第一节能状 态的请求后，如果该容量站所在覆盖站的网络状况满足预置的条件， 则发送正 向判决结果给所述容量站； 所述预置的条件包括但不限于如下的至少一种信 息： 所述覆盖站当前的负载低于预置的值， 所述覆盖站的负载统计信息显示所 述覆盖站在之后的预置时间内负载低于预置的值，所述容量站的负载统计信息 显示所述容量站在之后的预置时间内负载低于预置的值等。
第二状态接收单元 17, 用于接收所述容量站发送的从第一节能状态进入 第二节能状态的状态转换信息。
第一系统更新单元 18, 用于本实施例的基站的更新系统消息中所述容量 站的小区重选参数，使得所述覆盖站覆盖范围内的空闲用户设备被允许重选到 所述容量站。
第二系统更新单元 19, 用于本实施例的基站的更新系统消息中所述容量 站的小区重选参数，使得所述覆盖站覆盖范围内的空闲用户设备被阻止重选到 所述容量站。
本实施例的基站中： 当检测发送单元 13决定处于第一节能状态的容量站 进入正常状态，发送了第一激活请求给容量站后， 可以通过第一系统更新单元 18来更新覆盖站的系统消息；
当容量站自己决定从正常状态进入第一节能状态时，将进入第一节能状态 的状态转换信息通知覆盖站，当第一状态接收单元 14接收到状态转换信息后， 可以由第二系统更新单元 19来更新覆盖站的系统消息；
在另一个情况下， 容量站需要从正常状态进入第一节能状态， 则发送从正 常状态进入第一节能状态的请求， 当请求接收单元 15接收到该请求后， 由判 决单元 16来进行判决， 即当覆盖站的网络状况满足预置的条件， 则向容量站 进入正向判决结果，并可以由第二系统更新单元 19来更新覆盖站的系统消息； 可以理解， 如果覆盖站的网络状况不满足预置的条件， 则判决单元 16还可以 向容量站进入反向判决结果， 不允许该容量站从正常状态进入第一节能状态； 当容量站从第一节能状态进入第二节能状态时，将进入第二节能状态的状 态转换信息通知覆盖站的第二状态接收单元 17来接收。
可以理解， 当容量站在第一节能状态时，如果覆盖站内的连接态用户设备 以该容量站为目标基站进行切换， 则切换和接入单元 12可以将分组交换业务 和 /或电路交换业务切换到容量站； 当容量站在第一节能状态时， 当空闲态用 户设备想要接入该容量站， 则切换和接入单元 12可以先与空闲态的用户设备 建立连接，使得空闲态用户设备成为连接态的用户设备， 并通过与容量站之间 的切换将该用户设备接入到处于第一节能状态的容量站。
通过上述基站中各个单元可以按照如图 2到 4所示的方法进行基站的节能 操作，使得容量站可以在正常状态与第一节能状态，及第一节能状态与第二节 能状态之间相互转换， 使得容量站从第二节能状态即休眠或关闭状态激活后， 先不承载空闲态用户设备，从而在没有完全确定该容量站是否需要回到正常状 态之前， 避免了空闲态用户设备在覆盖站和容量站之间的移动性。
本发明实施例还提供一种 OAM设备：
结构示意图如图 11所示， 包括：
覆盖站负载检测单元 20, 用于检测覆盖站的负载是否高于预置的值； 覆盖站负载检测单元 20在检测覆盖站的负载时， 可以通过检测但不限于 如下的一种或几种信息： 覆盖站的连接态用户数， 覆盖站的下行数据量， 覆盖 站的空口资源占用率等。
状态激活发送单元 21 , 用于当所述覆盖站负载检测单元 20检测到所述覆 盖站的负载高于预置的值，发送第二激活请求给所述覆盖站覆盖范围内处于第 二节能状态的容量站，并将容量站从第二节能状态进入第一节能状态的状态转 换信息通知所述覆盖站，所述第二激活请求用于请求所述容量站从第二节能状 态进入第一节能状态。
状态激活发送单元 21可以将第二激活请求发送给覆盖站内所有的容量站 进入第一节能状态； 也可以将第二激活请求发送给覆盖站内部分的容量站， 比 如这部分容量站可以是覆盖站内用户设备和业务量分布密集区域的容量站。
在第一节能状态下， 容量站可以只承载连接态用户设备， 并发送连接态用 户设备必需的系统信息， 而不发送非连接态用户设备必须的系统信息。容量站 还可以支持源基站为该容量站所在覆盖站的切换，而拒绝源基站为非该容量站 所在覆盖站的切换，且拒绝以该容量站为目标的小区选择和小区重选； 且容量 站仅发送用于通知系统信息更新的寻呼消息，而不发送用于寻呼用户设备的寻 呼消息。
在第二节能状态即休眠或关闭状态下，容量站拒绝承载任何状态的用户设 备， 但是第二节能状态下的容量站保留与覆盖站或 OAM设备之间的接口。
本实施例的基站中： 如果覆盖站负载检测单元 20检测到覆盖站的负载高 于预置的值， 则状态激活发送单元 21发送第二激活请求给该覆盖站范围内的 所有或部分处于第二节能状态的容量站， 来激活这些容量站进入第一节能状 态。这样由于在第一节能状态下容量站仅承载连接态用户设备， 而空闲态的用 户设备由覆盖站来承载，从而减少了容量站需要发送的公共信令开销， 达到容 量站节能的目的。
参考图 12所示，在一个具体的实施例中， 本发明实施例的基站可以包括： 覆盖站负载检测单元 20、 状态激活发送单元 21、 请求和状态发送单元 22、 第 一状态通知单元 23、状态请求接收单元 24、正向判决通知单元 25和第二状态 通知单元 26, 其中：
请求和状态发送单元 22, 用于如果容量站处于第一节能状态， 检测到该 容量站所在覆盖站覆盖范围内的连接态用户设备以所述容量站为目标基站的 单位时间切换次数高于预置的值，或以所述容量站为目标基站进行切换的切换 成功率低于预置的值， 则发送第一激活请求给所述容量站， 并将所述容量站从 第一节能状态进入正常状态的状态转换信息通知所述覆盖站；所述第一激活请 求用于请求所述容量站从第一节能状态进入正常状态，所述容量站在正常状态 下承载任何状态的用户设备，也允许以该容量站为目的基站的小区选择或小区 重选等。
第一状态通知单元 23 , 用于接收容量站从正常状态进入第一节能状态的 状态转换信息， 并通知所述覆盖站。
状态请求接收单元 24, 用于接收所述容量站发送的从正常状态进入第一 节能状态的请求。
正向判决通知单元 25 , 用于当状态请求接收单元 24接收到从正常状态进 入第一节能状态的请求后，如果该容量站所在覆盖站的网络状况满足预置的条 件， 则发送正向判决结果给所述容量站， 并将所述容量站从正常状态进入第一 节能状态的状态转换信息通知所述覆盖站；所述预置的条件包括如下的至少一 种信息： 所述覆盖站当前的负载低于预置的值， 所述覆盖站的负载统计信息显 示所述覆盖站在之后的预置时间内负载低于预置的值，所述容量站的负载统计 信息显示所述容量站在之后的预置时间内负载低于预置的值等。
第二状态通知单元 26, 用于接收所述容量站发送的从第一节能状态进入 第二节能状态的状态转换信息， 并通知所述覆盖站。
本实施例的 OAM设备中： 当请求和状态发送单元 22决定容量站从第一 节能状态进入正常状态，发送第一激活请求给容量站， 并将容量站从第一节能 状态进入正常状态的状态转换信息通知覆盖站；
当容量站自己决定从正常状态进入第一节能状态时，将进入第一节能状态 的状态转换信息发送给 OAM设备， 而第一状态通知单元 23将接收到状态转 换信息通知覆盖站；
在另一个情况下， 容量站需要从正常状态进入第一节能状态， 则发送从正 常状态进入第一节能状态的请求， 当状态请求接收单元 24接收到该请求后， 由正向判决通知单元 25来进行判决， 即当该容量站所在覆盖站的网络状况满 足预置的条件， 则向容量站进入正向判决结果， 并将容量站从正常状态进入第 一节能状态的状态转换信息通知覆盖站； 可以理解，如果该容量站所在覆盖站 的网络状况不满足预置的条件， 则向容量站进入反向判决结果， 则容量站继续 处于原来的正常状态；
当容量站从第一节能状态进入第二节能状态时，将进入第二节能状态的状 态转换信息发送给 OAM设备， 由第二状态通知单元 17将接收的状态转换信 息通知覆盖站。
通过上述 OAM设备中各个单元的配合，使得容量站可以在正常状态与第 一节能状态，及第一节能状态与第二节能状态之间相互转换，使得容量站从第 二节能状态即休眠或关闭状态激活后， 先不承载空闲态用户设备，从而在没有 完全确定该容量站是否需要回到正常状态之前，避免了空闲态用户设备在覆盖 站和容量站之间的移动性。 本发明实施例还提供另一种基站：
本实施例的基站可以为如图 la和 lb所示的容量站， 结构示意图如图 13 所示， 包括：
第二激活请求接收单元 30, 用于接收到容量站所在覆盖站或操作、 管理 和维护 OAM设备发送的第二激活请求，所述第二激活请求用于请求容量站从 第二节能状态进入第一节能状态；
状态转换单元 31 , 用于当所述第二激活请求接收单元 30接收到第二激活 请求后， 从当前的第二节能状态进入第一节能状态；
其中在第一节能状态下， 容量站只承载连接态用户设备， 并发送连接态用 户设备必需的系统信息， 而不发送非连接态用户设备必须的系统信息； 容量站 还可以支持源基站为该容量站所在覆盖站的切换，而拒绝源基站为非该容量站 所在覆盖站的切换，且拒绝以该容量站为目标的小区选择和小区重选； 且容量 站仅发送用于通知系统信息更新的寻呼消息，而不发送用于寻呼用户设备的寻 呼消息。
在第二节能状态即休眠或关闭状态下，容量站拒绝承载任何状态的用户设 备， 但是第二节能状态下的容量站保留与覆盖站或 OAM设备之间的接口。
在本发明实施例的基站中： 当第二激活请求接收单元 30接收到覆盖站或 OAM设备发送的第二激活请求，状态转换单元 31从当前的第二节能状态进入 第一节能状态。这样由于在第一节能状态下容量站仅承载连接态用户设备， 而 空闲态的用户设备由覆盖站来承载，从而减少了容量站需要发送的公共信令开 销， 达到容量站节能的目的。
且本发明实施例的容量站中状态转换单元 31从第一节能状态即休眠或关 闭状态激活后， 先不承载空闲态用户设备，从而在没有完全确定该容量站是否 需要回到正常状态之前，避免了空闲态用户设备在覆盖站和容量站之间的移动 性。
参考图 14所示， 在另一个具体的实施例中， 本实施例的基站可以包括： 第二激活请求接收单元 30、 状态转换单元 31、 第一激活请求接收单元 32、 进 入正常状态单元 33、 检测通知单元 34、 状态请求发送单元 35、 第一状态单元 36和第二状态单元 37, 其中： 第一激活请求接收单元 32, 用于接收到所述覆盖站或操作、 管理和维护 OAM设备发送的第一激活请求， 所述第一激活请求用于请求所述容量站从第 一节能状态进入正常状态； 所述容量站在正常状态下承载任何状态的用户设 备， 也允许以该容量站为目的基站的小区选择或小区重选等操作。
进入正常状态单元 33 , 用于当所述第一激活请求接收单元 32接收到第一 激活请求后， 从当前的第一节能状态进入正常状态。
进入正常状态单元 33可以更新系统消息中小区接入的参数， 使得所述容 量站覆盖范围内的空闲态用户设备驻留在所述容量站，且所述容量站覆盖范围 内的用户设备被允许以所述容量站为目标基站的小区选择和小区重选。
检测通知单元 34, 用于检测容量站的负载是否低于预置的值， 如果是， 则从当前的正常状态进入第一节能状态，并将所述容量站从正常状态进入第一 节能状态的转换信息通知所述容量站所在的覆盖站。
检测通知单元 34在检测容量站的负载时， 可以通过检测但不限于如下的 一种或几种信息： 容量站的连接态用户数， 容量站的下行数据量， 容量站的空 口资源占用率等。
状态请求发送单元 35 , 用于检测容量站的负载是否低于预置的值， 如果 是， 则发送从正常状态进入第一节能状态的请求给所述覆盖站或 OAM设备。
第一状态单元 36,用于当接收到所述覆盖站或 OAM设备根据所述从正常 状态进入第一节能状态的请求反馈的正向判决结果，则从当前的正常状态进入 第一节能状态。
具体地， 第一状态单元 36可以迁出所述容量站覆盖范围内的空闲态用户 设备， 并更新系统消息中小区接入的参数，使得所述容量站覆盖范围内的用户 设备被阻止以所述容量站为目标基站的小区选择和小区重选。
第二状态单元 37, 用于当检测到在预置的时间内所述容量站没有连接态 用户设备，从当前的第一节能状态进入第二节能状态， 并将所述容量站从第一 节能状态进入第二节能状态的状态转换信息通知该容量站所在覆盖站。
本实施例的基站中， 当第一激活请求接收单元 32接收到覆盖站或 OAM 设备发送的第一激活请求， 通过进入正常状态单元 33从当前的第一节能状态 进入正常状态； 容量站通过检测通知单元 34 自己决定从正常状态进入第一节能状态， 将 并将进入第一节能状态的状态转换信息通知该容量站所在覆盖站；
在另一个情况下， 容量站的状态请求发送单元 35从正常状态进入第一节 能状态， 则发送从正常状态进入第一节能状态的请求， 当第一状态单元 36接 收到覆盖站或 OAM设备进入的正向判决结果后，从正常状态进入第一节能状 态； 如果第一状态单元 36接收到覆盖站或 OAM设备进入的反向判决结果， 则保持原来的正常状态；
当第二状态单元 37决定从第一节能状态进入第二节能状态， 将进入第二 节能状态的状态转换信息通知容量站所在覆盖站。
通过上述容量站中各个单元的配合，使得容量站可以在正常状态与第一节 能状态，及第一节能状态与第二节能状态之间相互转换，使得容量站从第二节 能状态即休眠或关闭状态激活后， 先不承载空闲态用户设备，从而在没有完全 确定该容量站是否需要回到正常状态之前，避免了空闲态用户设备在覆盖站和 容量站之间的移动性。
本发明实施例还提供一种基站节能系统， 包括： 覆盖站和所述覆盖站覆盖 范围内的至少一个容量站，且本实施例的系统中覆盖站和容量站属于相同的无 线接入技术网络小区， 其中：
所述覆盖站， 用于检测覆盖站的负载是否高于预置的值， 如果是， 则发送 第二激活请求给所述覆盖站覆盖范围内的所有或部分处于第二节能状态的容 量站，所述第二激活请求用于请求所述容量站从第二节能状态进入第一节能状 态； 在所述第一节能状态下， 所述容量站只承载连接态用户设备， 并发送连接 态用户设备必需的系统信息； 在所述第二节能状态下，所述容量站拒绝承载任 何状态的用户设备；
所述容量站， 用于接收到所在覆盖站发送的第二激活请求，从当前的第二 节能状态进入第一节能状态。
本发明实施例提供另一种基站节能系统， 包括： 覆盖站、 所述覆盖站覆盖 范围内的至少一个容量站和操作管理和维护 OAM设备，且本实施例的系统中 覆盖站和容量站属于不同的无线接入技术网络小区， 其中：
所述 OAM设备， 用于检测覆盖站的负载是否高于预置的值， 如果是， 则 发送第二激活请求给所述覆盖站覆盖范围内的所有或部分处于第二节能状态 的容量站，所述第二激活请求用于请求所述容量站从第二节能状态进入第一节 能状态，并将容量站从第二节能状态进入第一节能状态的状态转换信息通知所 述覆盖站； 在所述第一节能状态下， 所述容量站只承载连接态用户设备， 并发 送连接态用户设备必需的系统信息； 在所述第二节能状态下， 所述容量站拒绝 承载任何状态的用户设备；
所述容量站， 用于接收到所述 OAM设备发送的第二激活请求， 从当前的 第二节能状态进入第一节能状态；
所述覆盖站，用于接收所述 OAM设备发送的容量站从第二节能状态进入 第一节能状态的状态转换信息。
综上所述， 本发明实施例的方法通过如下方式实现基站的节能：
( 1 ) 当容量站满足一定条件时仅承载连接态用户设备， 而空闲态用户设 备由覆盖站承载，这样可以更加充分的利用覆盖站为了维持基本的网络覆盖而 持续发送公共信令， 减少容量站针对空闲态用户设备的公共信令开销，从而更 有效的利用覆盖站和容量站共存的网络拓朴结构以及无线资源，达到容量站节 能的目的。
( 2 )容量站从第二节能状态即休眠或关闭状态激活后先不承载空闲态用 户设备， 而仅承载连接态用户设备，从而在没有完全确定该容量站是否需要回 到正常状态之前，避免了空闲态用户设备在覆盖站和容量站之间的移动性以及 可能带来的位置更新等。
本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步 骤是可以通过程序来指令相关的硬件来完成，该程序可以存储于一计算机可读 存储介质中， 存储介质可以包括： ROM、 RAM, 磁盘或光盘等。
以上对本发明实施例所提供的基站节能方法、 系统及装置， 进行了详细介 绍， 本文中应用了具体个例对本发明的原理及实施方式进行了阐述， 以上实施 例的说明只是用于帮助理解本发明的方法及其核心思想； 同时，对于本领域的 一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变 之处， 综上所述， 本说明书内容不应理解为对本发明的限制。

Claims

权 利 要 求
1、 一种基站节能方法， 其特征在于， 包括：
检测覆盖站的负载是否高于预置的值；
如果所述覆盖站的负载高于预置的值，发送第二激活请求给所述覆盖站覆 盖范围内处于第二节能状态的容量站，所述第二激活请求用于请求所述容量站 从第二节能状态进入第一节能状态；
在所述第一节能状态下， 所述容量站只承载连接态用户设备， 并发送连接 态用户设备的系统信息； 在所述第二节能状态下， 所述容量站拒绝承载任何状 态的用户设备。
2、 如权利要求 1所述的方法， 其特征在于， 在第一节能状态下， 所述容 量站还拒绝源基站为非所述容量站所在覆盖站的切换，且拒绝以所述容量站为 目标的小区选择和小区重选， 且仅发送用于通知系统信息更新的寻呼消息。
3、 如权利要求 1 所述的方法， 其特征在于， 若操作、 管理和维护 OAM 设备进行所述检测负载并发送第二激活请求， 则所述方法还包括： 所述 OAM 设备将所述容量站从第二节能状态进入到第一节能状态的状态转换信息通知 所述覆盖站。
4、 如权利要求 1所述的方法， 其特征在于， 当所述容量站处于第一节能 状态， 则所述方法还包括：
如果连接态的用户设备以所述容量站为目标基站进行切换，将分组交换业 务和电路交换业务中的至少一个业务切换到所述容量站；
或， 所述方法还包括： 与空闲态的用户设备建立连接， 并通过与所述容量 站之间的切换将所述用户设备接入到所述容量站。
5、 如权利要求 1所述的方法， 其特征在于， 还包括：
检测到所述覆盖站覆盖范围内的连接态用户设备以所述容量站为目标基 站的单位时间切换次数高于预置的值，或以所述容量站为目标基站进行切换的 切换成功率低于预置的值， 则发送第一激活请求给所述容量站；
所述第一激活请求用于请求所述容量站从第一节能状态进入正常状态；所 述容量站在正常状态下承载任何状态的用户设备。
6、 如权利要求 5所述的方法， 其特征在于， 若操作、 管理和维护 OAM 设备进行所述检测单位时间切换次数或切换成功率， 则在所述 OAM设备发送 第一激活请求之后还包括： 所述 OAM设备将所述容量站从第一节能状态进入 正常状态的状态转换信息通知所述覆盖站。
7、 如权利要求 5所述的方法， 其特征在于， 所述检测到所述覆盖站覆盖 范围内的连接态用户设备以所述容量站为目标基站的单位时间切换次数高于 预置的值， 或以所述容量站为目标基站进行切换的切换成功率低于预置的值， 之后还包括：
更新所述覆盖站的系统消息中所述容量站的小区重选参数，使得所述覆盖 站覆盖范围内的空闲用户设备被允许重选到所述容量站。
8、 如权利要求 5至 7任一项所述的方法， 其特征在于， 还包括： 接收所述容量站从正常状态进入第一节能状态的状态转换信息； 更新系统消息中所述容量站的小区重选参数，使得所述覆盖站覆盖范围内 的空闲用户设备被阻止重选到所述容量站。
9、 如权利要求 5至 7任一项所述的方法， 其特征在于， 还包括： 接收所述容量站发送的从正常状态进入第一节能状态的请求；
如果所述覆盖站的网络状况满足预置的条件，则发送正向判决结果给所述 容量站；
所述预置的条件包括如下的至少一种信息：所述覆盖站当前的负载低于预 置的值，所述覆盖站的负载统计信息显示所述覆盖站在之后的预置时间内负载 低于预置的值，所述容量站的负载统计信息显示所述容量站在之后的预置时间 内负载低于预置的值；
若操作、管理和维护 OAM设备进行所述接收从正常状态进入第一节能状 态的请求并发送正向判决结果， 则所述方法还包括： 所述 OAM设备将所述容 量站从正常状态进入第一节能状态的状态转换信息通知所述覆盖站。
10、 如权利要求 9所述的方法， 其特征在于， 还包括：
更新所述覆盖站的系统消息中所述容量站的小区重选参数，使得所述覆盖 站覆盖范围内的空闲用户设备被阻止重选到所述容量站。
11、 如权利要求 9所述的方法， 其特征在于， 还包括：
接收所述容量站发送的从第一节能状态进入第二节能状态的状态转换信 息；
若操作、管理和维护 OAM设备接收到所述从第一节能状态进入第二节能 状态的状态转换信息， 则所述方法还包括： 所述 OAM设备将所述容量站从第 一节能状态进入第二节能状态的状态转换信息通知所述覆盖站。
12、 一种基站节能方法， 其特征在于， 包括：
接收到所在覆盖站或操作、 管理和维护 OAM设备发送的第二激活请求， 所述第二激活请求用于请求容量站从第二节能状态进入第一节能状态；
从当前的第二节能状态进入第一节能状态；
在所述第一节能状态下， 所述容量站只承载连接态用户设备， 并发送连接 态用户设备的系统信息； 在所述第二节能状态下， 所述容量站拒绝^载任何状 态的用户设备。
13、 如权利要求 12所述的方法， 其特征在于， 在第一节能状态下， 所述 容量站还拒绝源基站为非所述容量站所在覆盖站的切换，且拒绝以所述容量站 为目标的小区选择和小区重选， 且仅发送用于通知系统信息更新的寻呼消息。
14、 如权利要求 12所述的方法， 其特征在于， 还包括：
接收到所述覆盖站或操作、 管理和维护 OAM设备发送的第一激活请求， 所述第一激活请求用于请求所述容量站从第一节能状态进入正常状态；所述容 量站在正常状态下承载任何状态的用户设备；
从当前的第一节能状态进入正常状态。
15、 如权利要求 14所述的方法， 其特征在于， 所述从当前的第一节能状 态进入正常状具体包括：
更新系统消息中小区接入的参数，使得所述容量站覆盖范围内的空闲态用 户设备驻留在所述容量站，且所述容量站覆盖范围内的用户设备被允许以所述 容量站为目标基站的小区选择和小区重选。
16、 如权利要求 14所述的方法， 其特征在于， 还包括：
检测容量站的负载是否低于预置的值，如果是， 则从当前的正常状态进入 第一节能状态，并将所述容量站从正常状态进入第一节能状态的转换信息通知 所述容量站所在的覆盖站。
17、 如权利要求 14所述的方法， 其特征在于， 还包括： 检测容量站的负载是否低于预置的值，如果是， 则发送从正常状态进入第 一节能状态的请求给所述覆盖站或 OAM设备；
当接收到所述覆盖站或 OAM设备根据所述从正常状态进入第一节能状态 的请求反馈的正向判决结果， 则从当前的正常状态进入第一节能状态。
18、 如权利要求 16或 17所述的方法， 其特征在于， 所述从当前的正常状 态进入第一节能状态具体包括：
迁出所述容量站覆盖范围内的空闲态用户设备，并更新系统消息中小区接 入的参数，使得所述容量站覆盖范围内的用户设备被阻止以所述容量站为目标 基站的小区选择和小区重选。
19、 如权利要求 16或 17所述的方法， 其特征在于， 还包括：
若检测到在预置的时间内所述容量站没有连接态用户设备，从当前的第一 节能状态进入第二节能状态，并将所述容量站从第一节能状态进入第二节能状 态的状态转换信息通知所述覆盖站。
20、 一种基站， 其特征在于， 包括：
负载检测单元， 用于检测覆盖站的负载是否高于预置的值；
激活发送单元，用于当所述负载检测单元检测到所述覆盖站的负载高于预 置的值，发送第二激活请求给所述覆盖站覆盖范围内处于第二节能状态的容量 站， 所述第二激活请求用于请求所述容量站从第二节能状态进入第一节能状 态；
在第一节能状态下， 所述容量站只承载连接态用户设备， 并发送连接态用 户设备的系统信息； 在第二节能状态下， 所述容量站不承载任何状态的用户设 备。
21、 如权利要求 20所述的基站， 其特征在于， 还包括：
切换和接入单元， 用于当所述容量站处于第一节能状态，如果所述覆盖站 范围内的连接态用户设备以所述容量站为目标基站进行切换，将分组交换业务 和 /或电路交换业务切换到所述容量站； 或， 用于当所述容量站处于第一节能 状态， 与空闲态的用户设备建立连接， 并通过与所述容量站之间的切换将所述 用户设备接入到所述容量站。
22、 如权利要求 20所述的基站， 其特征在于， 还包括： 检测发送单元，用于当检测到所述覆盖站覆盖范围内的连接态用户设备以 所述容量站为目标基站的单位时间切换次数高于预置的值，或以所述容量站为 目标基站进行切换的切换成功率低于预置的值，则发送第一激活请求给所述容 量站； 所述第一激活请求用于请求所述容量站从第一节能状态进入正常状态； 所述容量站在正常状态下^载任何状态的用户设备。
23、 如权利要求 22所述的基站， 其特征在于， 还包括：
第一系统更新单元，用于更新所述基站的系统消息中所述容量站的小区重 选参数， 使得所述覆盖站覆盖范围内的空闲用户设备被允许重选到所述容量 站。
24、 如权利要求 22所述的基站， 其特征在于， 还包括：
第一状态接收单元，用于接收所述容量站从正常状态进入第一节能状态的 状态转换信息；
第二系统更新单元，用于更新所述基站的系统消息中所述容量站的小区重 选参数， 使得所述覆盖站覆盖范围内的空闲用户设备被阻止重选到所述容量 站。
25、 如权利要求 22所述的基站， 其特征在于， 还包括：
请求接收单元，用于接收所述容量站发送的从正常状态进入第一节能状态 的请求；
判决单元， 用于当所述覆盖站的网络状况满足预置的条件， 则发送正向判 决结果给所述容量站； 所述预置的条件包括如下的至少一种信息： 所述覆盖站 当前的负载低于预置的值，所述覆盖站的负载统计信息显示所述覆盖站在之后 的预置时间内负载低于预置的值，所述容量站的负载统计信息显示所述容量站 在之后的预置时间内负载低于预置的值。
26、 如权利要求 24或 25所述的基站， 其特征在于， 还包括：
第二状态接收单元，用于接收所述容量站发送的从第一节能状态进入第二 节能状态的状态转换信息。
27、 一种操作、 管理和维护 OAM设备， 其特征在于， 包括：
覆盖站负载检测单元， 用于检测覆盖站的负载是否高于预置的值； 状态激活发送单元，用于当所述覆盖站负载检测单元检测到所述覆盖站的 负载高于预置的值，发送第二激活请求给所述覆盖站覆盖范围内处于第二节能 状态的容量站，并将容量站从第二节能状态进入第一节能状态的状态转换信息 通知所述覆盖站，所述第二激活请求用于请求所述容量站从第二节能状态进入 第一节能状态；
在第一节能状态下， 所述容量站只承载连接态用户设备， 并发送连接态用 户设备的系统信息； 在第二节能状态下， 所述容量站不承载任何状态的用户设 备。
28、 如权利要求 27所述的设备， 其特征在于， 还包括：
请求和状态发送单元，用于检测到所述覆盖站覆盖范围内的连接态用户设 备以所述容量站为目标基站的单位时间切换次数高于预置的值，或以所述容量 站为目标基站进行切换的切换成功率低于预置的值，则发送第一激活请求给所 述容量站，并将所述容量站从第一节能状态进入正常状态的转台转换信息通知 所述覆盖站；
所述第一激活请求用于请求所述容量站从第一节能状态进入正常状态，所 述容量站在正常状态下承载任何状态的用户设备。
29、 如权利要求 28所述的设备， 其特征在于， 还包括：
第一状态通知单元，用于接收所述容量站从正常状态进入第一节能状态的 状态转换信息， 并通知所述覆盖站。
30、 如权利要求 28所述的设备， 其特征在于， 还包括：
状态请求接收单元，用于接收所述容量站发送的从正常状态进入第一节能 状态的请求；
正向判决通知单元， 用于当所述覆盖站的网络状况满足预置的条件， 则发 送正向判决结果给所述容量站，并将所述容量站从正常状态进入第一节能状态 的状态转换信息通知所述覆盖站； 所述预置的条件包括如下的至少一种信息： 所述覆盖站当前的负载低于预置的值，所述覆盖站的负载统计信息显示所述覆 盖站在之后的预置时间内负载低于预置的值，所述容量站的负载统计信息显示 所述容量站在之后的预置时间内负载低于预置的值。
31、 如权利要求 29或 30所述的设备， 其特征在于， 还包括：
第二状态通知单元，用于接收所述容量站发送的从第一节能状态进入第二 节能状态的状态转换信息， 并通知所述覆盖站。
32、 一种基站， 其特征在于， 包括：
第二激活请求接收单元，用于接收到所在覆盖站或操作、管理和维护 OAM 设备发送的第二激活请求，所述第二激活请求用于请求容量站从第二节能状态 进入第一节能状态；
状态转换单元， 用于当所述第二激活请求接收单元接收到第二激活请求 后， 从当前的第二节能状态进入第一节能状态；
在所述第一节能状态下， 所述容量站只承载连接态用户设备， 并发送连接 态用户设备的系统信息； 在所述第二节能状态下， 所述容量站拒绝承载任何状 态的用户设备。
33、 如权利要求 32所述的基站， 其特征在于， 还包括：
第一激活请求接收单元，用于接收到所述覆盖站或操作、管理和维护 OAM 设备发送的第一激活请求，所述第一激活请求用于请求所述容量站从第一节能 状态进入正常状态； 所述容量站在正常状态下承载任何状态的用户设备； 进入正常状态单元，用于当所述第一激活请求接收单元接收到第一激活请 求后， 从当前的第一节能状态进入正常状态。
34、 如权利要求 33所述的基站， 其特征在于， 还包括：
检测通知单元， 用于检测容量站的负载是否低于预置的值， 如果是， 则从 当前的正常状态进入第一节能状态，并将所述容量站从正常状态进入第一节能 状态的转换信息通知所述容量站所在的覆盖站。
35、 如权利要求 33所述的基站， 其特征在于， 还包括：
状态请求发送单元， 用于检测容量站的负载是否低于预置的值， 如果是， 则发送从正常状态进入第一节能状态的请求给所述覆盖站或 OAM设备；
第一状态单元，用于当接收到所述覆盖站或 OAM设备根据所述从正常状 态进入第一节能状态的请求反馈的正向判决结果，则从当前的正常状态进入第 一节能状态。
36、 如权利要求 34或 35所述的基站， 其特征在于， 还包括：
第二状态单元，用于当检测到在预置的时间内所述容量站没有连接态用户 设备，从当前的第一节能状态进入第二节能状态， 并将所述容量站从第一节能 状态进入第二节能状态的状态转换信息通知所述覆盖站。
37、 一种基站节能系统， 其特征在于， 包括： 覆盖站和所述覆盖站覆盖范 围内的至少一个容量站；
所述覆盖站， 用于检测覆盖站的负载是否高于预置的值， 如果是， 则发送 第二激活请求给所述覆盖站覆盖范围内处于第二节能状态的容量站，所述第二 激活请求用于请求所述容量站从第二节能状态进入第一节能状态；在所述第一 节能状态下， 所述容量站只承载连接态用户设备， 并发送连接态用户设备的系 统信息； 在所述第二节能状态下， 所述容量站拒绝承载任何状态的用户设备； 所述容量站， 用于接收到所在覆盖站发送的第二激活请求，从当前的第二 节能状态进入第一节能状态。
38、 一种基站节能系统， 其特征在于， 包括： 覆盖站、 所述覆盖站覆盖范 围内的至少一个容量站和操作管理和维护 OAM设备；
所述 OAM设备， 用于检测覆盖站的负载是否高于预置的值， 如果是， 则 发送第二激活请求给所述覆盖站覆盖范围内处于第二节能状态的容量站，所述 第二激活请求用于请求所述容量站从第二节能状态进入第一节能状态，并将容 量站从第二节能状态进入第一节能状态的状态转换信息通知所述覆盖站；在所 述第一节能状态下， 所述容量站只承载连接态用户设备， 并发送连接态用户设 备的系统信息； 在所述第二节能状态下， 所述容量站拒绝承载任何状态的用户 设备；
所述容量站， 用于接收到所述 OAM设备发送的第二激活请求， 从当前的 第二节能状态进入第一节能状态；
所述覆盖站，用于接收所述 OAM设备发送的容量站从第二节能状态进入 第一节能状态的状态转换信息。
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