WO2018176415A1 - 一种协作小区确定方法及网络设备 - Google Patents

一种协作小区确定方法及网络设备 Download PDF

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Publication number
WO2018176415A1
WO2018176415A1 PCT/CN2017/079114 CN2017079114W WO2018176415A1 WO 2018176415 A1 WO2018176415 A1 WO 2018176415A1 CN 2017079114 W CN2017079114 W CN 2017079114W WO 2018176415 A1 WO2018176415 A1 WO 2018176415A1
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Prior art keywords
cell
network device
terminal
determining
covered
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PCT/CN2017/079114
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English (en)
French (fr)
Inventor
李小捷
李琦
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2017/079114 priority Critical patent/WO2018176415A1/zh
Priority to EP17903189.3A priority patent/EP3595348B1/en
Priority to CN201780089282.9A priority patent/CN110506432B/zh
Priority to JP2019553198A priority patent/JP6872634B2/ja
Publication of WO2018176415A1 publication Critical patent/WO2018176415A1/zh
Priority to US16/585,365 priority patent/US11172414B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity
    • H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
    • 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
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/26—Cell enhancers or enhancement, e.g. for tunnels, building shadow
    • 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
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0069—Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink
    • 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
    • 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
    • H04W36/0085—Hand-off measurements

Definitions

  • the present application relates to the field of wireless communications technologies, and in particular, to a cooperative cell determining method and a network device.
  • the International Telecommunications Union places very stringent requirements on the performance of next-generation mobile communication systems. For example, the maximum system transmission bandwidth reaches 100MHz, and the peak rate of uplink and downlink data transmission needs to reach 1G bps and 500M bps, and puts a very high demand on the average spectrum efficiency of the system, especially the edge spectrum efficiency.
  • 3GPP 3rd Generation Partnership Project
  • LTE-Advanced Long Term Evolution Advanced
  • CoMP Coordinated Multiple Points
  • Cooperative multipoint transmission technology is a collaboration between multiple transmission points that are geographically separated. In general, multiple transmission points are base stations of different cells.
  • the coordinated multi-point transmission technology is divided into downlink coordinated multi-point transmission and uplink coordinated multi-point transmission.
  • Joint scheduling is to allocate mutually orthogonal resources to different terminals through the coordination of time, frequency and space resources between cells to avoid mutual interference.
  • the interference of the small interval is the main factor that restricts the performance of the cell edge terminal. Therefore, joint scheduling can reduce the interference between cells, thereby improving the performance of the cell edge terminal.
  • Joint transmission is to simultaneously transmit data to a terminal through multiple cells to enhance the gain of the received signal of the terminal.
  • Uplink coordinated multipoint transmission means that multiple cells simultaneously receive data transmitted by one terminal, and then combine the data received by each cell for joint processing to improve the demodulation quality of the terminal data. In this way, similar to the data transmitted by the terminal through more antennas in the same cell, the signal combining gain and the interference suppression gain can be obtained at the same time.
  • a cell that generally transmits or receives data to a terminal in association with a cell in which the terminal is located is referred to as a coordinated cell or a coordinated cell.
  • the coordinated cell selected by the network device is arbitrarily selected from the neighboring cells of the cell in which the terminal is located, and the cell in which the terminal is located may have a cell with the coordinated cell selected by the network device.
  • the reference signal Cell Reference Signal, CRS
  • CRS Cell Reference Signal
  • PDCCH physical downlink control channel
  • the purpose of the embodiments of the present application is to provide a method for determining a coordinated cell and a network device, so that the coordinated cell determined by the network device matches the cell in the network device, so that the terminal accessing the network device is determined by the determined cooperation.
  • the embodiment of the present application further provides a method for determining a coordinated cell, including:
  • the first network device Determining, by the first network device, a cell in a closed state of the plurality of cells covered by the second network device, where the first network device determines the cell in the closed state as a coordinated cell, where the first network device and the Narrative Two network devices are adjacent.
  • the coordinated cell determined by the first network device is a cell in the closed state, and the cell in the closed state does not send a broadcast message such as a reference signal or system information, and therefore does not transmit with the cell in the first network device.
  • the broadcast message such as the reference signal generates a collision, so that when the terminal in the cell of the first network device performs cooperative transmission, the terminal can obtain higher gain.
  • the first network device determines a cell that is in a closed state among the multiple cells that are covered by the second network device, and includes:
  • the second cell is Determined as a cell in the off state.
  • the first network device may determine the status of each cell in the second network device by using the measurement report, so that the cells in the closed state of the plurality of cells covered by the second network device may be determined in real time.
  • the first network device determines a cell that is in a closed state among the multiple cells that are covered by the second network device, and includes:
  • the first network device may determine the state of each cell in the second network device by using the neighbor relationship list, so that the cells in the closed state of the plurality of cells covered by the second network device may be more accurately determined.
  • the method further includes:
  • the first network device determines a second terminal that needs downlink cooperation and a third terminal that needs uplink cooperation; wherein the second terminal is a terminal whose downlink signal strength is less than a first threshold, and the third terminal is an uplink signal strength. a terminal that is smaller than the second threshold;
  • the first network device sends a downlink signal to the second terminal whose downlink signal strength is less than the first threshold by using the coordinated cell, so that the gain of the downlink signal received by the second terminal is increased, and the network of the second terminal is improved.
  • the first network device sends a downlink signal by using the coordinated cell in conjunction with the third terminal whose uplink signal strength is less than the second threshold, so that the gain of the uplink signal received by the third terminal is increased, and the third terminal is improved.
  • Network quality is
  • the method further includes:
  • N is greater than 0;
  • the first network device determines that the N RSRP values include the M RSRP values that are greater than the RSRP threshold, the first network device sends the indication information to the second network device, where the indication information indicates that the second network device is turned on.
  • M is less than or equal to N, and M is greater than zero.
  • the first network device performs measurement on the terminal in the coordinated cell by using the coordinated cell, so as to indicate whether the second network device starts the coordinated cell, and avoids the gap overhead caused by the frequent inter-frequency measurement of the terminal in the second device.
  • the method further includes:
  • the path loss difference is a path loss difference of the fourth terminal from the third cell to the coordinated cell, where the third cell is the a cell that the four terminals access in the first network device;
  • the embodiment of the present application provides a network device, which can perform any one of the cooperative cell determining methods provided by the foregoing first aspect.
  • the base station includes a plurality of functional modules, for example, including a processing unit and a transceiver unit, for implementing any of the cooperative cell determining methods provided above, such that the determined coordinated cell is a cell in a closed state. If the cell in the closed state does not send a broadcast message such as a reference signal or system information, it does not conflict with a broadcast message such as a reference signal transmitted by the cell in the first network device, thereby being a terminal in the cell of the network device. When performing cooperative transmission, the terminal can obtain higher gain.
  • a broadcast message such as a reference signal or system information
  • the embodiment of the present application provides a network device, including:
  • a processor configured to determine a cell in a closed state of the plurality of cells covered by the second network device; the network device is adjacent to the second network device;
  • the processor is configured to determine the cell in the closed state as a coordinated cell.
  • the processor is specifically configured to:
  • the processor is specifically configured to:
  • the neighbor relationship list determines, according to the neighbor relationship list, the cells in the closed state of the plurality of cells covered by the second network device, where the neighbor relationship list includes a state of each cell covered by the second network device.
  • the network device further includes a transceiver
  • the processor is further configured to: determine a second terminal that needs downlink cooperation, and a third terminal that needs uplink cooperation; where the second terminal is a terminal whose downlink signal strength is less than a first threshold, and the third terminal is an uplink a terminal whose signal strength is less than a second threshold;
  • the transceiver configured to, by the cell covered by the first network device, and the coordinated cell jointly to the The second terminal sends a downlink signal
  • the network device further includes a transceiver
  • the transceiver is configured to receive N reference signal received power RSRP values sent by the second network device, where the N RSRP values are used by the second network device to measure N terminals in the coordinated cell. After obtaining, N is greater than 0;
  • the processor if it is determined that the N RSRP values include M RSRP values that are greater than an RSRP threshold, sending, by the transceiver, the indication information to the second network device, where the indication information indicates the The second network device turns on the coordinated cell, where M is less than or equal to N, and M is greater than zero.
  • the processor is further configured to:
  • Determining a path loss difference of the fourth terminal where the path loss difference is a path loss difference of the fourth terminal from the third cell to the coordinated cell, where the third cell is the fourth terminal a cell that is accessed by the network device; determining, according to the path loss, the downlink signal strength of the fourth terminal to receive the first cell;
  • the embodiment of the present application further provides a computer storage medium, where the software program stores a software program, and the software program can implement the coordinated cell determination method provided by any one of the above designs when being read and executed by one or more processors. .
  • the embodiment of the present application further provides a communication system, which includes the network device provided by any one of the foregoing designs.
  • the system may further include the interaction with the network device in the solution provided by the embodiment of the present application. other devices.
  • the embodiment of the present application also provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method described in the above aspects.
  • FIG. 1 is a schematic diagram of a scene process applicable to an embodiment of the present application
  • FIG. 2 is a schematic diagram of a scene process applicable to an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of a method for determining a coordinated cell according to an embodiment of the present disclosure
  • FIG. 5 is a schematic diagram of a cell according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a collaborative cell according to an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.
  • the embodiments of the present application can be applied to various mobile communication systems, for example, a New Radio (NR) system, a Global System of Mobile communication (GSM) system, and code division multiple access (Code).
  • NR New Radio
  • GSM Global System of Mobile communication
  • Code division multiple access Code Division Multiple Access
  • CDMA Wideband Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • UMTS Universal Mobile Telecommunication System
  • eLTE Evolved Long Term Evolution
  • a terminal which may also be called a User Equipment (UE)
  • UE User Equipment
  • UE User Equipment
  • Common terminals include, for example, mobile phones, tablets, notebook computers, PDAs, mobile internet devices (MIDs), wearable devices such as smart watches, smart bracelets, pedometers, and the like.
  • the network device which may be a common base station (such as a Node B or an eNB), may be a new radio controller (NR controller), may be a gNode B (gNB) in a 5G system, may be centralized
  • a centralized unit which may be a new wireless base station, may be a radio remote module, may be a macro base station, may be a micro base station, may be a relay, or may be a distributed network element (Distributed Unit), It is a Transmission Reception Point (TRP) or a Transmission Point (TP) or any other wireless access device, but the embodiment of the present application is not limited thereto.
  • TRP Transmission Reception Point
  • TP Transmission Point
  • Multiple means two or more. "and/or”, describing the association relationship of the associated objects, indicating that there may be three relationships, for example, A and/or B, which may indicate that there are three cases where A exists separately, A and B exist at the same time, and B exists separately.
  • the character "/" generally indicates that the contextual object is an "or” relationship.
  • first, second, third, etc. may be used to describe various messages, requests, and terminals in the embodiments of the present application, these messages, requests, and terminals should not be limited to these terms, such as the first Terminal, second terminal, etc. These terms are only used to distinguish messages, requests, and terminals from one another, and do not represent the meaning of ordering messages, requests, and terminals.
  • the embodiment of the present application can be applied to determine a coordinated cell between a macro base station and a macro base station.
  • the terminal 103 and the terminal 104 are located in a cell of the macro base station 101, and the terminal 105 is located in the macro base station 102.
  • the macro base station 101 may determine the cell in the macro base station 102 as a coordinated cell when determining the coordinated cell, and vice versa.
  • the embodiment of the present application can also be applied to a scenario in which a macro base station covers a micro base station.
  • the macro base station 201 includes a micro base station 202 and a micro base station 203 in a signal coverage range.
  • the micro base station 202 can determine the cell in the micro base station 203 as a coordinated cell, and vice versa.
  • FIG. 3 a schematic flowchart of a method for determining a coordinated cell according to an embodiment of the present application is provided.
  • the method includes:
  • Step 301 The first network device determines a cell that is in a closed state among the plurality of cells covered by the second network device, where the first network device is adjacent to the second network device.
  • a radio remote unit (RRU) of each network device has the capability of transmitting and receiving signals on carriers of different frequency bands, so each network device can simultaneously establish multiple configurations as Cells of different frequency band carriers. It should be noted that, in a frequency band, there are multiple frequency points. In this embodiment, each network device can simultaneously establish multiple cells configured as carriers of different frequency points in the same frequency band.
  • the signal coverage of the two cells is the same, that is, the two cells belong to the same coverage cell.
  • the network device 401 A cell 402 and a cell 403 are included.
  • the carriers configured in the cell 402 and the cell 403 are carriers of different frequency points in the same frequency band, and the coverage areas of the cells 402 and 403 are the same.
  • the network device if a cell is in a closed state, the network device does not establish a physical cell on the carrier configured by the cell, that is, the network device does not send information such as a system message, a synchronization channel, and a downlink pilot signal in the cell, so the terminal The existence of this cell could not be found.
  • the cell can utilize the transmission and reception capabilities of the RRU of the network device to assist the user in the same frequency band to perform user measurement, reception, and transmission.
  • the first network device and the second network device are adjacent to each other, that is, the first network device and the second network device are geographically adjacent.
  • the cell in the first network device and the cell in the second network device may have an area where the coverage overlaps.
  • the network device adjacent to the network device 101 is the network device 102.
  • Step 302 The first network device determines the cell in the closed state as a coordinated cell.
  • the first network device may determine, in multiple manners, the cells in the closed state of the multiple cells covered by the second network device.
  • the first network device determines, according to the measurement report sent by the first terminal, a cell that is in a closed state among the multiple cells that are covered by the second network device.
  • the measurement report sent by the first terminal indicates the cell in the plurality of cells covered by the second network device that is in an open state, so the first network device may be covered by the second network device according to the measurement report.
  • the first cell is determined in the cell, where the first cell is a cell in an open state.
  • the second network device may be determined.
  • the second cell entity is not established, and the first terminal cannot measure the second cell, so that the second cell can be determined as the cell in the closed state.
  • a network device 501 includes a cell 504 and a cell 505.
  • the carrier configured by the cell 504 and the carrier configured by the cell 505 are carriers of different frequency points in the same frequency band, the cell 504 is in the off state, and the cell 505 is in the on state, that is, the terminal can measure the cell 505 and cannot measure the cell 504.
  • the terminal 503 After measuring the cell in the network device 501, the terminal 503 generates a measurement report, and the generated measurement report indicates that the cell 505 is in the on state.
  • the terminal 503 sends the measurement report to the network device 502.
  • the network device 502 determines that the cell 505 is in an open state according to the measurement report, so that the cell 504 in the same frequency band as the carrier of the cell 505 is determined to be in a closed state, so that the cell 504 can be used as a coordinated cell. .
  • the first network device may determine, according to the neighbor relationship list, the cells in the closed state of the multiple cells covered by the second network device. Since the neighbor relationship list includes the status of each cell covered by the second network device, the first network device can easily determine the status of each cell covered by the second network device.
  • step 302 after the first network device determines the coordinated cell, the second terminal that needs downlink cooperation and the third terminal that needs uplink cooperation may also be determined.
  • the first network device may determine any one terminal as the second terminal that needs downlink cooperation, and the first network device may also determine any one terminal as the third terminal that needs uplink cooperation.
  • the first network device may further determine, by the terminal that has a downlink signal strength less than the first threshold, as the second terminal that needs downlink cooperation, and the first network device may further determine, as the required terminal, the uplink signal strength is less than the second threshold.
  • the third terminal of the uplink cooperation may be performed by the terminal that has a downlink signal strength less than the first threshold, as the second terminal that needs downlink cooperation, and the first network device may further determine, as the required terminal, the uplink signal strength is less than the second threshold.
  • the first network device determines that the downlink reference signal received power (RSRP) of the terminal is smaller than the preset RSRP, or the first network device determines the channel quality indicator (CQI) reported by the terminal. If it is less than the preset CQI, it is determined that the downlink signal strength of the terminal is less than the first threshold.
  • RSRP downlink reference signal received power
  • CQI channel quality indicator
  • the first network device determines that the uplink RSRP of the terminal is smaller than the preset RSRP, or if the first network device determines that the uplink signal to interference plus noise ratio (SINR) of the terminal is less than the preset.
  • SINR determines that the uplink signal strength of the terminal is less than a second threshold.
  • one terminal may need downlink cooperation and uplink cooperation at the same time.
  • the first threshold and the second threshold may be determined according to actual conditions, and details are not described herein again.
  • the first network device may jointly send a downlink signal to the second terminal by using the cell covered by the first network device and the coordinated cell; and a cell covered by the first network device and the collaboration The cell jointly receives the uplink signal sent by the third terminal.
  • cell 605 in network device 602 is both a cell 604 in network device 601 and a cooperating cell of cell 606 in network device 603.
  • the terminal 607 in the cell 604 and the terminal 608 in the cell 606 require both downlink cooperation and uplink cooperation.
  • the cell 604 and the cell 605 can perform joint reception.
  • the downlink signal of the terminal 607 the cell 604 and the cell 605 can simultaneously transmit the same downlink signal to the terminal 607.
  • the terminal 608 can also use the foregoing method, and details are not described herein again.
  • the hotspot area corresponding to the cell of the micro base station needs to be assisted by the macro base station.
  • the R12 protocol defines the small station discovery related protocol, but the terminal supporting R12 is less, and it is more difficult to apply in a short period of time.
  • the network device may continue to measure the uplink signal strength of the terminal in the closed cell, so as to perform the hot spot region identification based on the measured uplink signal strength of the terminal.
  • the second network device obtains N RSRP values after measuring the N terminals in the coordinated cell, and sends the N RSRP values to the first network device, where N is greater than 0.
  • the first network device receives the N RSRP values sent by the second network device, if it is determined that the N RSRP values include M RSRP values that are greater than the RSRP threshold, the first network device sends an indication to the second network device.
  • the indication information indicates that the second network device starts the coordinated cell, where M is less than or equal to N, and M is greater than 0.
  • the first network device may determine that the coordinated cell is a hotspot area, thereby instructing the second network device to re-open the coordinated cell, thereby implementing Optimal deployment of the cell.
  • the uplink signal strength of the terminal in the same-frequency neighboring cell may be measured by the coordinated cell, and the measurement information is provided for the inter-frequency cell with the same frequency band and the same frequency band of the coordinated cell, so as to avoid the terminal performing the inter-frequency measurement.
  • Gap overhead (GAP) The GAP cost is: the terminal needs to periodically stop the uplink and downlink services to measure the inter-frequency downlink cell in order to measure the inter-frequency neighboring cell, so that the temporary interruption of the uplink and downlink services causes the service to be delayed.
  • the first network device may first determine a path loss difference of the fourth terminal, where the path loss difference is a path loss difference of the fourth terminal from the third cell to the coordinated cell, and the third The cell is a cell that the fourth terminal accesses in the first network device.
  • the path loss difference satisfies the following formula:
  • DeltaPL is the path loss difference
  • R1 is a signal strength of the fourth terminal to the third cell, that is, The uplink transmission power when the fourth terminal sends the uplink signal in the third cell
  • R2 is the signal strength of the fourth terminal to the coordinated cell, that is, the uplink when the fourth terminal sends the uplink signal in the coordinated cell.
  • Transmission power, G1 is the antenna gain of the third cell
  • G2 is the antenna gain of the coordinated cell.
  • the first network device determines, according to the path loss difference, that the fourth terminal receives the downlink signal strength of the first cell, that is, determines that the fourth terminal receives the received power of the downlink signal of the first cell.
  • the downlink signal strength of the first terminal that is received by the first network device by the first network device meets the following formula:
  • DLRsrp3 (DLRsrp1-G1)-DeltaPL+G3+P3-P1 ⁇ (2)
  • the DLRsrp3 is the fourth terminal receiving the downlink signal strength of the first cell
  • the DLRsrp1 is the downlink signal strength of the third cell
  • P1 is the pilot transmit power of the third cell
  • P3 is the first The pilot transmit power of a cell
  • G3 is the antenna gain of the third cell.
  • DLRsrp3 DLRsrp1+R2-R1+P3-P1 ⁇ (3)
  • the first network device may instruct the fourth terminal to switch to the first cell, so that the fourth terminal obtains a higher gain and improves the communication quality of the fourth terminal.
  • the first network device performs measurement on the terminal in the coordinated cell by using the coordinated cell, thereby implementing whether the second network device is enabled to enable the coordinated cell, and avoiding frequent frequency measurement of the coordinated cell by the terminal in the second device.
  • the gap overhead is implemented to achieve mobility enhancement.
  • the embodiment of the present application provides a schematic structural diagram of a network device.
  • the network device can perform steps 301 to 302 in the flow shown in FIG. 3 and contents related to steps 301 to 302.
  • the network device 700 includes:
  • the processor 701 is configured to determine a cell that is in a closed state among multiple cells that are covered by the second network device, where the network device is adjacent to the second network device;
  • the processor 701 is configured to determine the cell in the closed state as a coordinated cell.
  • the network device 700 can also include a power source 703 for powering various components.
  • the power source 703 can be logically coupled to the processor 701 through a power management system to manage functions such as charging, discharging, and power management through the power management system. .
  • the network device 700 can also include a memory 704 that can be used to store software programs and modules that execute various functional applications and data processing of the devices by running software programs and modules stored in the memory 704.
  • the processor 701 is specifically configured to:
  • the processor 701 is specifically configured to:
  • the neighbor relationship list determines, according to the neighbor relationship list, the cells in the closed state of the plurality of cells covered by the second network device, where the neighbor relationship list includes a state of each cell covered by the second network device.
  • the network device 700 further includes a transceiver 702;
  • the processor 701 is further configured to: determine a second terminal that needs downlink cooperation, and a third terminal that needs uplink cooperation; where the second terminal is a terminal whose downlink signal strength is less than a first threshold, and the third terminal is a terminal whose uplink signal strength is less than a second threshold;
  • the transceiver 702 is configured to jointly send a downlink signal to the second terminal by using a cell covered by the first network device and the coordinated cell;
  • the network device 700 further includes a transceiver 702;
  • the transceiver 702 is configured to receive N reference signal received power RSRP values sent by the second network device, where the N RSRP values are performed by the second network device on the N terminals in the coordinated cell. Obtained after measurement, N is greater than 0;
  • the processor 701 is configured to: if it is determined that the N RSRP values include M RSRP values that are greater than an RSRP threshold, send, by the transceiver, the indication information to the second network device, where the indication information indicates The second network device turns on the coordinated cell, where M is less than or equal to N, and M is greater than zero.
  • processor 701 is further configured to:
  • Determining a path loss difference of the fourth terminal where the path loss difference is a path loss difference of the fourth terminal from the third cell to the coordinated cell, where the third cell is the fourth terminal a cell that is accessed by the network device; determining, according to the path loss, the downlink signal strength of the fourth terminal to receive the first cell;
  • the processor 701 can be implemented by a processing unit, and the transceiver 702 can be implemented by a transceiver.
  • the network device 800 can include a processing unit 801 and a transceiver unit 802.
  • the processing unit 801 can execute the flow executed by the processor 701 in FIG. 7, and the transceiver unit 802 can execute the flow executed by the transceiver 702 in FIG.
  • the division of each unit above is only a division of a logical function, and the actual implementation may be integrated into one physical entity in whole or in part, or may be physically separated.
  • each device embodiment may refer to related methods in the related method embodiments. Partial understanding.

Abstract

一种协作小区确定方法及网络设备。其中方法包括：第一网络设备确定第二网络设备覆盖的多个小区中处于关闭状态的小区；所述第一网络设备与所述第二网络设备相邻；所述第一网络设备将所述处于关闭状态的小区确定为协作小区。

Description

一种协作小区确定方法及网络设备 技术领域
本申请涉及无线通信技术领域，特别涉及一种协作小区确定方法及网络设备。
背景技术
国际通信联盟对下一代移动通信系统的性能提出了非常苛刻的要求。比如最大系统传输带宽达到100MHz，上下行数据传输的峰值速率需要达到1G bps和500M bps，并对系统平均频谱效率尤其是边缘频谱效率提出了非常高的需求。为了满足新系统的要求，第三代合作伙伴计划(3rd Generation Partnership Project，3GPP)在其下一代移动蜂窝通信系统即长期演进升级(Long Term Evolution Advanced，LTE-Advanced)系统中提出了采用协同多点(Coordinated Multiple Points，CoMP)传输技术来提高系统的性能。协同多点传输技术是地理位置上分离的多个传输点之间的协作。一般来说，多个传输点是不同小区的基站。协同多点传输技术分下行的协同多点传输和上行的协同多点传输。
下行的协同多点传输技术方案主要分为两类：联合调度和联合发送。联合调度是通过小区之间的时间、频率和空间资源的协调，为不同的终端分配互相正交的资源，避免相互之间的干扰。小区间的干扰是制约小区边缘终端性能的主要因素，因此联合调度可以降低小区间的干扰，从而提高小区边缘终端的性能。联合发送是通过多个小区同时向终端发送数据，以增强终端的接收信号的增益。
上行的协同多点传输是指多个小区同时接收一个终端发送的数据，然后合并各小区接收到的数据进行联合处理以提高终端数据的解调质量。这种方式类似于在同一小区通过更多的天线接收终端发送的数据，可以同时获得信号合并增益和干扰抑制增益。
协同多点传输技术中，一般将与终端所处的小区联合向终端发送或接收数据的小区称为协作小区或协同小区，为了描述方便，以下均称为协作小区。针对接入网络设备的一个终端，网络设备选择的协作小区是从该终端所处的小区的相邻小区中任意选择的，该终端所处的小区可能与网络设备选择的协作小区之间存在小区参考信号(Cell Reference Signal，CRS)冲突、物理下行控制信道(Physical Downlink Control Channel，PDCCH)符号数不一致等问题，从而使得终端难以获得较高增益。
为此，网络设备如何确定出协作小区，使得接入所述网络设备的终端获得较高的增益，是一个亟待解决的问题。
发明内容
本申请实施方式的目的在于提供一种协作小区确定方法及网络设备，用以实现网络设备确定出的协作小区与网络设备中的小区相匹配，使得接入网络设备的终端在通过确定出的协作下去进行数据传输时，获得较高的增益，提高系统效率。
本申请实施例还提供了一种协作小区确定方法，包括：
第一网络设备确定第二网络设备覆盖的多个小区中处于关闭状态的小区，然后所述第一网络设备将所述处于关闭状态的小区确定为协作小区，其中所述第一网络设备与所述第 二网络设备相邻。
通过上述方法，第一网络设备确定出的协作小区为处于关闭状态的小区，由于处于关闭状态的小区不发送参考信号、系统信息等广播消息，因此不会和第一网络设备中的小区发送才参考信号等广播消息产生冲突，从而在为第一网络设备的小区中的终端进行协同传输时，可以使得终端获得更高的增益。
可选的，所述第一网络设备确定第二网络设备覆盖的多个小区中处于关闭状态的小区，包括：
所述第一网络设备根据第一终端发送的测量报告从所述第二网络设备覆盖的多个小区中确定第一小区，所述测量报告指示出所述第二网络设备覆盖的多个小区中处于开启状态的小区，所述第一小区为处于开启状态的小区；
所述第一网络设备若根据所述测量报告确定所述第二网络设备覆盖的多个小区中与所述第一小区处于同一频段的第二小区不处于开启状态，则将所述第二小区确定为处于关闭状态的小区。
通过上述方法，第一网络设备可以通过测量报告确定第二网络设备中每个小区的状态，从而可以实时的确定第二网络设备覆盖的多个小区中处于关闭状态的小区。
可选的，所述第一网络设备确定第二网络设备覆盖的多个小区中处于关闭状态的小区，包括：
所述第一网络设备根据邻区关系列表确定所述第二网络设备覆盖的多个小区中处于关闭状态的小区，所述邻区关系列表中包括所述第二网络设备覆盖的每个小区的状态。
通过上述方法，第一网络设备可以通过邻区关系列表确定第二网络设备中每个小区的状态，从而可以更准确的确定第二网络设备覆盖的多个小区中处于关闭状态的小区。
可选的，所述第一网络设备将所述处于关闭状态的小区确定为协作小区之后，还包括：
所述第一网络设备确定需要下行协作的第二终端以及需要上行协作的第三终端；其中，所述第二终端为下行信号强度小于第一阈值的终端，所述第三终端为上行信号强度小于第二阈值的终端；
所述第一网络设备通过所述第一网络设备覆盖的小区以及所述协作小区联合向所述第二终端发送下行信号；以及
通过所述第一网络设备覆盖的小区以及所述协作小区联合接收所述第三终端发送的上行信号。
通过上述方法，第一网络设备通过所述协作小区联合向下行信号强度小于第一阈值的第二终端发送下行信号，从而使得第二终端接收的下行信号的增益增大，提高第二终端的网络质量；相应的，第一网络设备通过所述协作小区联合向上行信号强度小于第二阈值的第三终端发送下行信号，从而使得第三终端接收的上行信号的增益增大，提高第三终端的网络质量。
可选的，所述第一网络设备将所述处于关闭状态的小区确定为协作小区之后，还包括：
所述第一网络设备接收所述第二网络设备发送的N个参考信号接收功率RSRP值，所述N个RSRP值为所述第二网络设备对所述协作小区中的N个终端进行测量后获得的，N大于0；
所述第一网络设备若确定所述N个RSRP值中包括M个大于RSRP阈值的RSRP值，则向所述第二网络设备发送指示信息，所述指示信息指示所述第二网络设备开启所述协作小区，M小于或等于N，且M大于0。
通过上述方法，第一网络设备通过协作小区对协作小区中的终端进行测量，从而实现指示第二网络设备是否开启协作小区，避免了第二设备中的终端频繁的进行异频测量导致的间隙开销。
可选的，所述第一网络设备将所述处于关闭状态的小区确定为协作小区之后，还包括：
所述第一网络设备确定第四终端的路损差，所述路损差为所述第四终端从第三小区到达所述协作小区的路损差值，所述第三小区为所述第四终端在所述第一网络设备中接入的小区；
所述第一网络设备根据所述路损差确定所述第四终端接收所述第一小区的下行信号强度；
所述第一网络设备若确定所述第四终端接收所述第一小区的下行信号强度大于信号强度阈值，则确定所述第四终端需要切换到所述第一小区。
本申请实施例提供一种网络设备，可以执行实现上述第一方面提供的任意一种协作小区确定方法。
在一种可能的设计中，该基站包括多个功能模块，例如包括处理单元和收发单元，用于实现上述提供的任意一种协作小区确定方法，使得确定出的协作小区为处于关闭状态的小区，由于处于关闭状态的小区不发送参考信号、系统信息等广播消息，因此不会和第一网络设备中的小区发送才参考信号等广播消息产生冲突，从而在为该网络设备的小区中的终端进行协同传输时，可以使得终端获得更高的增益。
本申请实施例提供一种网络设备，包括：
处理器，用于确定第二网络设备覆盖的多个小区中处于关闭状态的小区；所述网络设备与所述第二网络设备相邻；
所述处理器，用于将所述处于关闭状态的小区确定为协作小区。
可选的，所述处理器具体用于：
根据第一终端发送的测量报告从所述第二网络设备覆盖的多个小区中确定第一小区，所述测量报告指示出所述第二网络设备覆盖的多个小区中处于开启状态的小区，所述第一小区为处于开启状态的小区；
若根据所述测量报告确定所述第二网络设备覆盖的多个小区中与所述第一小区处于同一频段的第二小区不处于开启状态，则将所述第二小区确定为处于关闭状态的小区。
可选的，所述处理器具体用于：
根据邻区关系列表确定所述第二网络设备覆盖的多个小区中处于关闭状态的小区，所述邻区关系列表中包括所述第二网络设备覆盖的每个小区的状态。
可选的，所述网络设备还包括收发机；
所述处理器还用于，确定需要下行协作的第二终端以及需要上行协作的第三终端；其中，所述第二终端为下行信号强度小于第一阈值的终端，所述第三终端为上行信号强度小于第二阈值的终端；
所述收发机，用于通过所述第一网络设备覆盖的小区以及所述协作小区联合向所述第 二终端发送下行信号；以及
通过所述第一网络设备覆盖的小区以及所述协作小区联合接收所述第三终端发送的上行信号。
可选的，所述网络设备还包括收发机；
所述收发机，用于接收所述第二网络设备发送的N个参考信号接收功率RSRP值，所述N个RSRP值为所述第二网络设备对所述协作小区中的N个终端进行测量后获得的，N大于0；
所述处理器，用于若确定所述N个RSRP值中包括M个大于RSRP阈值的RSRP值，则通过所述收发机向所述第二网络设备发送指示信息，所述指示信息指示所述第二网络设备开启所述协作小区，M小于或等于N，且M大于0。
可选的，所述处理器还用于：
确定第四终端的路损差，所述路损差为所述第四终端从第三小区到达所述协作小区的路损差值，所述第三小区为所述第四终端在所述第一网络设备中接入的小区；根据所述路损差确定所述第四终端接收所述第一小区的下行信号强度；
若确定所述第四终端接收所述第一小区的下行信号强度大于信号强度阈值，则确定所述第四终端需要切换到所述第一小区。
本申请实施例中还提供一种计算机存储介质，该存储介质中存储软件程序，该软件程序在被一个或多个处理器读取并执行时可实现上述任意一种设计提供的协作小区确定方法。
本申请实施例还提供了一种通信系统，该系统包括上述任意一种设计提供的网络设备，可选的，该系统还可以包括本申请实施例提供的方案中与所述网络设备进行交互的其他设备。
本申请实施例还提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述各方面所述的方法。
附图说明
图1为适用于本申请实施例的一种场景程示意图；
图2为适用于本申请实施例的一种场景程示意图；
图3为本申请实施例提供的一种协作小区确定方法流程示意图；
图4为现有技术中一种同覆盖小区示意图；
图5为本申请实施例提供的一种小区示意图；
图6为本申请实施例提供的一种协作小区示意图；
图7为本申请实施例提供的一种网络设备结构示意图；
图8为本申请实施例提供的一种网络设备结构示意图。
具体实施方式
下面将结合附图对本申请实施例作进一步地详细描述。
本申请实施例可以应用于各种移动通信系统，例如：新无线(New Radio，NR)系统、全球移动通讯(Global System of Mobile communication，GSM)系统、码分多址(Code  Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进(Long Term Evolution，LTE)系统、先进的长期演进(Advanced long term evolution，LTE-A)系统、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、演进的长期演进(evolved Long Term Evolution，eLTE)系统、5G等其它移动通信系统。
以下，对本申请中的部分用语进行解释说明，以便于本领域技术人员理解。
1)、终端，也可以称之为用户设备(User Equipment，UE)，是一种向用户提供语音和/或数据连通性的设备，例如，具有无线连接功能的手持式设备、车载设备等。常见的终端例如包括：手机、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device，MID)、可穿戴设备，例如智能手表、智能手环、计步器等。
2)、网络设备，可以是普通的基站(如Node B或eNB)，可以是新无线控制器(New Radio controller，NR controller)，可以是5G系统中的gNode B(gNB)，可以是集中式网元(Centralized Unit)，可以是新无线基站，可以是射频拉远模块，可以是宏基站，可以是微基站，可以是中继(relay)，可以是分布式网元(Distributed Unit)，可以是接收点(Transmission Reception Point，TRP)或传输点(Transmission Point，TP)或者任何其它无线接入设备，但本申请实施例不限于此。
3)、“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。同时，应当理解，尽管在本申请实施例中可能采用术语第一、第二、第三等来描述各种消息、请求和终端，但这些消息、请求和终端不应限于这些术语，例如第一终端、第二终端等。这些术语仅用来将消息、请求和终端彼此区分开，不代表对消息、请求和终端进行排序等含义。
本申请实施例可以应用于宏基站与宏基站之间确定协作小区，例如，如图1所示，图1中，终端103和终端104位于宏基站101的小区中，终端105位于宏基站102的小区中。宏基站101在确定协作小区时，可以将宏基站102中的小区确定为协作小区，反之亦然。本申请实施例还可以应用于宏基站中覆盖微基站的场景，例如，如图2所示，图2中，宏基站201的信号覆盖范围内包括微基站202和微基站203。微基站202在确定协作小区时，可以将微基站203中的小区确定为协作小区，反之亦然。
结合上述描述，如图3所示，为本申请实施例提供的一种协作小区确定方法流程示意图。
参见图3，该方法包括：
步骤301：第一网络设备确定第二网络设备覆盖的多个小区中处于关闭状态的小区；所述第一网络设备与所述第二网络设备相邻。
本申请实施例中，每个网络设备的射频拉远单元(Radio Remote Unit，RRU)具备在多个不同频段的载波上发送和接收信号的能力，因此每个网络设备可以同时建立多个配置为不同频段载波的小区。需要说明的是，一个频段存在多个频点，本申请实施例中，每个网络设备可以同时建立多个配置为同频段不同频点载波的小区。
若一个网络设备中的两个小区配置同频段不同频点的载波，则这两个小区的信号覆盖范围相同，即这两个小区属于同覆盖小区。例如，如图4所示。图4中，网络设备401中 包括小区402和小区403。小区402和小区403配置的载波为同频段不同频点的载波，小区402和小区403信号覆盖范围相同。
本申请实施例中，若一个小区处于关闭状态，则网络设备未在该小区配置的载波上建立实体小区，即网络设备不在该小区发送系统消息、同步信道、下行导频信号等信息，因此终端无法发现该小区的存在。但该小区可以利用网络设备的RRU的发送与接收能力，辅助同频段小区的进行用户测量、接收和发送。
同时，需要说明的是，本申请实施例中，所述第一网络设备与所述第二网络设备相邻是指所述第一网络设备与所述第二网络设备在地理位置上相邻，所述第一网络设备中的小区与所述第二网络设备中的小区可能存在覆盖重叠的区域。举例来说，结合图1，网络设备101相邻的网络设备为网络设备102。
步骤302：所述第一网络设备将所述处于关闭状态的小区确定为协作小区。
步骤301中，第一网络设备可以通过多种方式确定第二网络设备覆盖的多个小区中处于关闭状态的小区。
第一种可能的实现方式中，第一网络设备根据第一终端发送的测量报告确定第二网络设备覆盖的多个小区中处于关闭状态的小区。
第一终端发送的测量报告中指示出所述第二网络设备覆盖的多个小区中处于开启状态的小区，因此第一网络设备可以根据所述测量报告从所述第二网络设备覆盖的多个小区中确定第一小区，其中，所述第一小区为处于开启状态的小区。
所述第一网络设备若根据所述测量报告确定所述第二网络设备覆盖的多个小区中与所述第一小区处于同一频段的第二小区不处于开启状态，则可以确定第二网络设备未建立第二小区实体，第一终端无法测量第二小区，从而可以将所述第二小区确定为处于关闭状态的小区。
举例来说，如图5所示，为本申请实施例提供的一种小区示意图。图5中，网络设备501中包括小区504和小区505。小区504配置的载波和小区505配置的载波为同频段不同频点的载波，小区504处于关闭状态，小区505处于开启状态，即终端能够测量到小区505，不能测量到小区504。终端503在对网络设备501中的小区进行测量之后，生成测量报告，生成的测量报告中指示出小区505为处于开启状态的小区。终端503将测量报告发送给网络设备502，网络设备502根据测量报告可用确定小区505处于开启状态，从而确定与小区505的载波处于同频段的小区504处于关闭状态，从而可以将小区504作为协作小区。
第二种可能的实现方式中，第一网络设备可以根据邻区关系列表确定第二网络设备覆盖的多个小区中处于关闭状态的小区。由于邻区关系列表中包括所述第二网络设备覆盖的每个小区的状态，第一网络设备很容易确定第二网络设备覆盖的每个小区的状态。
在步骤302中，第一网络设备确定了协作小区之后，还可以确定需要下行协作的第二终端以及需要上行协作的第三终端。
第一网络设备可以将任意一个终端确定为需要下行协作的第二终端，第一网络设备也可以将任意一个终端确定为需要上行协作的第三终端。
可选的，第一网络设备还可以将下行信号强度小于第一阈值的终端确定为需要下行协作的第二终端，以及第一网络设备还可以将上行信号强度小于第二阈值的终端确定为需要上行协作的第三终端。
举例来说，第一网络设备若确定终端的下行参考信号接收功率(Reference Signal Receiving Power，RSRP)小于预设RSRP，或者，第一网络设备若确定终端上报的信道质量指示(Channel Quality Indicator，CQI)小于预设CQI，则确定该终端的下行信号强度小于第一阈值。
再举例来说，第一网络设备若确定终端的上行RSRP小于预设RSRP，或者，第一网络设备若确定终端的上行信号与干扰加噪声比(Signal to Interference plus Noise Ratio，SINR)小于预设SINR，则确定该终端的上行信号强度小于第二阈值。
需要说明的是，一个终端可能同时需要下行协作以及上行协作。第一阈值以及第二阈值可以根据实际情况确定，在此不再赘述。
最后，所述第一网络设备可以通过所述第一网络设备覆盖的小区以及所述协作小区联合向所述第二终端发送下行信号；以及通过所述第一网络设备覆盖的小区以及所述协作小区联合接收所述第三终端发送的上行信号。
举例来说，如图6所示，为本申请实施例提供的一种协作小区示意图。图6中，网络设备602中的小区605同时为网络设备601中的小区604以及网络设备603中的小区606的协作小区。小区604中的终端607以及小区606中的终端608同时需要下行协作以及上行协作。对于终端607的上行信号，小区604和小区605可以进行联合接收，对于终端607的下行信号，小区604和小区605可以同时向终端607发射相同的下行信号。终端608也可以使用上述方法，在此不再赘述。
在微基站的小区关闭后，微基站的小区对应的热点区域识别需要宏基站辅助，R12协议定义了小站发现相关协议，但支持R12的终端较少，短时期内还较难应用。本申请实施例中，网络设备将小区关闭之后，可以继续对被关闭的小区中的终端的上行信号强度进行测量，从而基于测量到的终端的上行信号强度进行热点区域的识别。
具体的，第二网络设备对所述协作小区中的N个终端进行测量后获得N个RSRP值，并将所述N个RSRP值发送给第一网络设备，N大于0。所述第一网络设备接收所述第二网络设备发送的N个RSRP值之后，若确定所述N个RSRP值中包括M个大于RSRP阈值的RSRP值，则向所述第二网络设备发送指示信息，所述指示信息指示所述第二网络设备开启所述协作小区，M小于或等于N，且M大于0。
通过上述方法，第一网络设备确定接收到的N个RSRP值中包括M个大于RSRP阈值的RSRP值之后，可以确定协作小区为热点区域，从而指示第二网络设备重新将协作小区开启，从而实现小区的最优部署。
本申请实施例中，还可以通过协作小区测量同频邻小区中终端的上行信号强度，为与协作小区同站址同频段同覆盖的异频小区提供测量信息，可避免终端进行异频测量时的间隙(GAP)开销。其中，GAP开销为：终端为了测量异频邻小区，需要周期性停止上下行业务，以测量异频邻小区，这样就造成上下行业务的临时中断导致业务更大时延。
具体的，所述第一网络设备可以先确定第四终端的路损差，所述路损差为所述第四终端从第三小区到达所述协作小区的路损差值，所述第三小区为所述第四终端在所述第一网络设备中接入的小区。
可选的，所述路损差满足以下公式：
DeltaPL＝(R1-G1)-(R2-G2)  ········(1)
其中，DeltaPL为所述路损差，R1为所述第四终端到所述第三小区的信号强度，即第 四终端在所述第三小区中发送上行信号时的上行传输功率，R2为所述第四终端到所述协作小区的信号强度，即第四终端在所述协作小区中发送上行信号时的上行传输功率，G1为所述第三小区的天线增益，G2为所述协作小区的天线增益。
然后，所述第一网络设备根据所述路损差确定所述第四终端接收所述第一小区的下行信号强度，即确定第四终端接收第一小区的下行信号的接收功率。可选的，所述第一网络设备确定出的所述第四终端接收所述第一小区的下行信号强度满足以下公式：
DLRsrp3＝(DLRsrp1-G1)-DeltaPL+G3+P3-P1  ········(2)
其中，DLRsrp3为所述第四终端接收所述第一小区的下行信号强度，DLRsrp1为所述第三小区的下行信号强度，P1为所述第三小区的导频发射功率，P3为所述第一小区的导频发射功率，G3为所述第三小区的天线增益。
对于同频段的小区，天线增益通常是相同的，即G3＝G2，此时公式(2)可简化为：
DLRsrp3＝DLRsrp1+R2-R1+P3-P1  ········(3)
最后，所述第一网络设备若确定所述第四终端接收所述第一小区的下行信号强度大于信号强度阈值，则确定所述第四终端需要切换到所述第一小区。
第一网络设备确定第四终端需要切换到第一小区之后，可以指示第四终端切换到第一小区，从而使得所述第四终端获得更高的增益，提高第四终端的通信质量。
通过上述方法，第一网络设备通过协作小区对协作小区中的终端进行测量，从而实现指示第二网络设备是否开启协作小区，避免了第二设备中的终端频繁的对协作小区进行异频测量导致的间隙开销，从而实现移动性增强。
如图7所示，本申请实施例提供一种网络设备结构示意图。该网络设备可以执行图3所示的流程中的步骤301至步骤302，以及步骤301至步骤302相关的内容。
参见图7，该网络设备700包括：
处理器701，用于确定第二网络设备覆盖的多个小区中处于关闭状态的小区；所述网络设备与所述第二网络设备相邻；
所述处理器701，用于将所述处于关闭状态的小区确定为协作小区。
该网络设备700还可以包括给各个部件供电的电源703，可选的，电源703可以通过电源管理系统与处理器701逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。
该网络设备700还可以包括存储器704，存储器704可用于存储软件程序以及模块，处理器701通过运行存储在存储器704的软件程序以及模块，从而执行该装置的各种功能应用以及数据处理。
可选的，所述处理器701具体用于：
根据第一终端发送的测量报告从所述第二网络设备覆盖的多个小区中确定第一小区，所述测量报告指示出所述第二网络设备覆盖的多个小区中处于开启状态的小区，所述第一小区为处于开启状态的小区；
若根据所述测量报告确定所述第二网络设备覆盖的多个小区中与所述第一小区处于同一频段的第二小区不处于开启状态，则将所述第二小区确定为处于关闭状态的小区。
可选的，所述处理器701具体用于：
根据邻区关系列表确定所述第二网络设备覆盖的多个小区中处于关闭状态的小区，所述邻区关系列表中包括所述第二网络设备覆盖的每个小区的状态。
可选的，所述网络设备700还包括收发机702；
所述处理器701还用于，确定需要下行协作的第二终端以及需要上行协作的第三终端；其中，所述第二终端为下行信号强度小于第一阈值的终端，所述第三终端为上行信号强度小于第二阈值的终端；
所述收发机702，用于通过所述第一网络设备覆盖的小区以及所述协作小区联合向所述第二终端发送下行信号；以及
通过所述第一网络设备覆盖的小区以及所述协作小区联合接收所述第三终端发送的上行信号。
可选的，所述网络设备700还包括收发机702；
所述收发机702，用于接收所述第二网络设备发送的N个参考信号接收功率RSRP值，所述N个RSRP值为所述第二网络设备对所述协作小区中的N个终端进行测量后获得的，N大于0；
所述处理器701，用于若确定所述N个RSRP值中包括M个大于RSRP阈值的RSRP值，则通过所述收发机向所述第二网络设备发送指示信息，所述指示信息指示所述第二网络设备开启所述协作小区，M小于或等于N，且M大于0。
可选的，所述处理器701还用于：
确定第四终端的路损差，所述路损差为所述第四终端从第三小区到达所述协作小区的路损差值，所述第三小区为所述第四终端在所述第一网络设备中接入的小区；根据所述路损差确定所述第四终端接收所述第一小区的下行信号强度；
若确定所述第四终端接收所述第一小区的下行信号强度大于信号强度阈值，则确定所述第四终端需要切换到所述第一小区。
本申请实施例中，处理器701可以由处理单元实现，收发机702可以由收发机实现。如图8所示，网络设备800可以包括处理单元801、收发单元802。处理单元801可以执行图7中处理器701执行的流程，收发单元802可以执行图7中收发机702执行的流程。应理解，以上各个单元的划分仅仅是一种逻辑功能的划分，实际实现时可以全部或部分集成到一个物理实体上，也可以物理上分开。
本申请各方法实施例之间相关部分可以相互参考；各装置实施例所提供的装置用于执行对应的方法实施例所提供的方法，故各装置实施例可以参考相关的方法实施例中的相关部分进行理解。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分步骤是可以通过程序来指令相关硬件来完成，所述的程序可以存储于一个设备的可读存储介质中，该程序在执行时，包括上述全部或部分步骤，所述的存储介质，如：FLASH、EEPROM等。
以上所述的具体实施方式，对本申请的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，不同的实施例可以进行组合，以上所述仅为本申请的具体实施方式而已，并不用于限定本申请的保护范围，凡在本申请的精神和原则之内，所做的任何组合、修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (12)

  1. 一种协作小区确定方法，其特征在于，包括：
    第一网络设备确定第二网络设备覆盖的多个小区中处于关闭状态的小区；所述第一网络设备与所述第二网络设备相邻；
    所述第一网络设备将所述处于关闭状态的小区确定为协作小区。
  2. 根据权利要求1所述的方法，其特征在于，所述第一网络设备确定第二网络设备覆盖的多个小区中处于关闭状态的小区，包括：
    所述第一网络设备根据第一终端发送的测量报告从所述第二网络设备覆盖的多个小区中确定第一小区，所述测量报告指示出所述第二网络设备覆盖的多个小区中处于开启状态的小区，所述第一小区为处于开启状态的小区；
    所述第一网络设备若根据所述测量报告确定所述第二网络设备覆盖的多个小区中与所述第一小区处于同一频段的第二小区不处于开启状态，则将所述第二小区确定为处于关闭状态的小区。
  3. 根据权利要求1或2所述的方法，其特征在于，所述第一网络设备确定第二网络设备覆盖的多个小区中处于关闭状态的小区，包括：
    所述第一网络设备根据邻区关系列表确定所述第二网络设备覆盖的多个小区中处于关闭状态的小区，所述邻区关系列表中包括所述第二网络设备覆盖的每个小区的状态。
  4. 根据权利要求1至3任一所述的方法，其特征在于，所述第一网络设备将所述处于关闭状态的小区确定为协作小区之后，还包括：
    所述第一网络设备确定需要下行协作的第二终端以及需要上行协作的第三终端；其中，所述第二终端为下行信号强度小于第一阈值的终端，所述第三终端为上行信号强度小于第二阈值的终端；
    所述第一网络设备通过所述第一网络设备覆盖的小区以及所述协作小区联合向所述第二终端发送下行信号；以及
    通过所述第一网络设备覆盖的小区以及所述协作小区联合接收所述第三终端发送的上行信号。
  5. 根据权利要求1至4任一所述的方法，其特征在于，所述第一网络设备将所述处于关闭状态的小区确定为协作小区之后，还包括：
    所述第一网络设备接收所述第二网络设备发送的N个参考信号接收功率RSRP值，所述N个RSRP值为所述第二网络设备对所述协作小区中的N个终端进行测量后获得的，N大于0；
    所述第一网络设备若确定所述N个RSRP值中包括M个大于RSRP阈值的RSRP值，则向所述第二网络设备发送指示信息，所述指示信息指示所述第二网络设备开启所述协作小区，M小于或等于N，且M大于0。
  6. 根据权利要求1至5任一所述的方法，其特征在于，所述第一网络设备将所述处于关闭状态的小区确定为协作小区之后，还包括：
    所述第一网络设备确定第四终端的路损差，所述路损差为所述第四终端从第三小区到达所述协作小区的路损差值，所述第三小区为所述第四终端在所述第一网络设备中接入的小区；
    所述第一网络设备根据所述路损差确定所述第四终端接收所述第一小区的下行信号强度；
    所述第一网络设备若确定所述第四终端接收所述第一小区的下行信号强度大于信号强度阈值，则确定所述第四终端需要切换到所述第一小区。
  7. 一种网络设备，其特征在于，包括：
    处理器，用于确定第二网络设备覆盖的多个小区中处于关闭状态的小区；所述网络设备与所述第二网络设备相邻；
    所述处理器，用于将所述处于关闭状态的小区确定为协作小区。
  8. 根据权利要求7所述的网络设备，其特征在于，所述处理器具体用于：
    根据第一终端发送的测量报告从所述第二网络设备覆盖的多个小区中确定第一小区，所述测量报告指示出所述第二网络设备覆盖的多个小区中处于开启状态的小区，所述第一小区为处于开启状态的小区；
    若根据所述测量报告确定所述第二网络设备覆盖的多个小区中与所述第一小区处于同一频段的第二小区不处于开启状态，则将所述第二小区确定为处于关闭状态的小区。
  9. 根据权利要求7或8所述的网络设备，其特征在于，所述处理器具体用于：
    根据邻区关系列表确定所述第二网络设备覆盖的多个小区中处于关闭状态的小区，所述邻区关系列表中包括所述第二网络设备覆盖的每个小区的状态。
  10. 根据权利要求7至9任一所述的网络设备，其特征在于，所述网络设备还包括收发机；
    所述处理器还用于，确定需要下行协作的第二终端以及需要上行协作的第三终端；其中，所述第二终端为下行信号强度小于第一阈值的终端，所述第三终端为上行信号强度小于第二阈值的终端；
    所述收发机，用于通过所述第一网络设备覆盖的小区以及所述协作小区联合向所述第二终端发送下行信号；以及
    通过所述第一网络设备覆盖的小区以及所述协作小区联合接收所述第三终端发送的上行信号。
  11. 根据权利要求7至10任一所述的网络设备，其特征在于，所述网络设备还包括收发机；
    所述收发机，用于接收所述第二网络设备发送的N个参考信号接收功率RSRP值，所述N个RSRP值为所述第二网络设备对所述协作小区中的N个终端进行测量后获得的，N大于0；
    所述处理器，用于若确定所述N个RSRP值中包括M个大于RSRP阈值的RSRP值，则通过所述收发机向所述第二网络设备发送指示信息，所述指示信息指示所述第二网络设备开启所述协作小区，M小于或等于N，且M大于0。
  12. 根据权利要求7至11任一所述的网络设备，其特征在于，所述处理器还用于：
    确定第四终端的路损差，所述路损差为所述第四终端从第三小区到达所述协作小区的路损差值，所述第三小区为所述第四终端在所述第一网络设备中接入的小区；根据所述路损差确定所述第四终端接收所述第一小区的下行信号强度；
    若确定所述第四终端接收所述第一小区的下行信号强度大于信号强度阈值，则确定所述第四终端需要切换到所述第一小区。
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