WO2014101191A1 - 一种确定CoMP用户的方法和设备 - Google Patents

一种确定CoMP用户的方法和设备 Download PDF

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Publication number
WO2014101191A1
WO2014101191A1 PCT/CN2012/088060 CN2012088060W WO2014101191A1 WO 2014101191 A1 WO2014101191 A1 WO 2014101191A1 CN 2012088060 W CN2012088060 W CN 2012088060W WO 2014101191 A1 WO2014101191 A1 WO 2014101191A1
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WIPO (PCT)
Prior art keywords
reference signal
base station
power value
signal power
uplink
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PCT/CN2012/088060
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English (en)
French (fr)
Inventor
许士芳
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to PCT/CN2012/088060 priority Critical patent/WO2014101191A1/zh
Priority to KR1020157020593A priority patent/KR20150103191A/ko
Priority to JP2015549937A priority patent/JP6055556B2/ja
Priority to CN201280002332.2A priority patent/CN104247287A/zh
Priority to EP12890984.3A priority patent/EP2940884A4/en
Publication of WO2014101191A1 publication Critical patent/WO2014101191A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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

Definitions

  • the present invention relates to the field of communications, and in particular, to a method and apparatus for determining a CoMP user.
  • CoMP Coordinated Multi-point
  • the base station can measure the upper 4 through the UE (User Equipment).
  • the downlink signal received power (Reference Signal Receiving Power) determines that the UE is a CoMP user.
  • the base station since the UE has limited ability to measure the downlink RSRP (such as when the UE is far away from the neighboring cell or the downlink reference signal of the neighboring cell has a lower transmit power), when the UE cannot measure the downlink RSRP of the neighboring cell, the base station It is not possible to determine whether the UE is a CoMP user, so that the UE is not determined to be a CoMP user, thereby affecting system performance.
  • An embodiment of the present invention provides a method and a device for determining a CoMP user, so that when the UE cannot measure the downlink reference signal power value of the neighboring cell, the base station can determine that the UE is a CoMP user.
  • a method for determining a CoMP user including:
  • a first cooperative base station Determining, according to the first uplink reference signal power value and the second uplink reference signal power value, a first cooperative base station; When the first cooperative base station includes a base station of the neighboring cell, it is determined that the UE is a C oMP user.
  • the method further includes: when acquiring the first downlink reference signal power value, the base station acquiring a second downlink reference signal of the serving cell of the UE Power value
  • the second cooperative base station includes the base station of the neighboring cell, it is determined that the UE is a C oMP user.
  • the determining, according to the first uplink reference signal power value and the second uplink reference signal power value includes:
  • the determining, by the difference between the second uplink path loss value and the first uplink path loss value, that the first cooperative base station includes :
  • the method further includes: receiving an uplink reference signal;
  • the acquiring the first uplink reference signal power value of the neighboring cell of the UE and the second uplink reference signal power value of the serving cell of the UE includes:
  • the method before the receiving the uplink reference signal, the method further includes:
  • a base station including:
  • a determining unit configured to determine whether a first downlink reference signal power value of a neighboring cell of the serving cell of the U E is obtained
  • an acquiring unit configured to acquire, when the determining unit determines that the first downlink reference signal power value is not obtained, a first uplink reference signal power value of the neighboring cell of the serving cell of the UE, and the serving cell Second uplink reference signal power value;
  • a processing unit configured to determine, according to the first uplink reference signal power value and the second uplink reference signal power value acquired by the acquiring unit, a first cooperative base station, where the first coordinated base station includes the neighboring cell When the base station belongs, it is determined that the UE is a C oMP user.
  • the acquiring unit is further configured to: when the determining unit determines that the first downlink reference signal power value of the neighboring cell of the UE is obtained, a second downlink reference signal power value of the serving cell of the UE; the processing unit is further configured to: determine, according to the first downlink reference signal power value and the second downlink reference signal power value acquired by the acquiring unit, the second collaboration a base station, and when the second cooperative base station includes a base station of the neighboring cell, determining that the UE is a C oMP user.
  • the processing unit is specifically configured to: pass the first uplink reference signal power value and the second uplink And a difference between the second uplink path loss value of the UE to the serving cell and a first uplink path loss value of the UE to the neighboring cell; Determining, according to the difference between the second uplink path loss value and the first uplink path loss value, the first cooperative base station.
  • the processing unit is specifically configured to: when the difference between the second uplink path loss value and the first uplink path loss value is greater than or When the threshold is equal to the preset threshold, the base station to which the neighboring cell belongs is determined to be the first coordinated base station.
  • the base station further includes: a receiving unit, configured to acquire the neighbor of the UE Receiving an uplink reference signal before the first uplink reference signal power value of the cell and the second uplink reference signal power value of the serving cell;
  • the processing unit is configured to: measure, according to the receiving cell, the received power of the uplink reference signal of the UE, obtain the power value of the second uplink reference signal, and obtain the base station of the neighboring cell by using the The neighboring cell measures the received power of the uplink reference signal of the UE, and obtains the first uplink reference signal power value.
  • the determining unit is further configured to: before the receiving unit receives the uplink reference signal, according to the UE and the neighboring cell The distance information of the base station determines the neighboring cell to be measured.
  • a base station including: a processor and a memory, where the memory stores a computer execution instruction, and the processor is connected to the memory through a communication bus;
  • the processor executes the computer-executed instruction stored in the memory, and is used to determine whether to acquire a first downlink reference signal power value of a neighboring cell of a serving cell of the UE, where Obtaining, by the first downlink reference signal power value, a first uplink reference signal power value of a neighboring cell of the serving cell of the UE, and a second uplink reference signal power value of the serving cell, and acquiring according to the Determining, by the first uplink reference signal power value and the second uplink reference signal power value, a first cooperative base station, and determining, when the first coordinated base station includes a base station of the neighboring cell, that the UE is a C oMP user.
  • the processor is specifically configured to: when determining a first downlink reference signal power value of a neighboring cell of the UE, acquire a serving cell of the UE a second downlink reference signal power value, and determining a second cooperative base station according to the first downlink reference signal power value and the second downlink reference signal power value, and including the neighbor in the second coordinated base station When the cell belongs to the cell, it is determined that the UE is a C oMP user.
  • the processor is specifically configured to: use the first uplink reference signal power value and the second uplink The difference between the reference signal power value and the second uplink path loss value of the UE to the serving cell and the first uplink path loss value of the UE to the neighboring cell, and according to the second The difference between the uplink path loss value and the first uplink path loss value determines the first cooperative base station.
  • the processor is specifically configured to: when the difference between the second uplink path loss value and the first uplink path loss value is greater than or When the threshold is equal to the preset threshold, the base station to which the neighboring cell belongs is determined to be the first coordinated base station.
  • the base station further includes: a transceiver, the transceiver and the processor pass The communication bus is connected to the transceiver, and the transceiver is configured to receive an uplink reference signal before acquiring a first uplink reference signal power value of the neighboring cell of the UE and a second uplink reference signal power value of the serving cell;
  • the processor is specifically configured to: in the serving cell, measure a received power of an uplink reference signal of the UE that is received by the transceiver, obtain a power value of the second uplink reference signal, and obtain the neighboring cell
  • the first uplink reference signal power value obtained by the subordinate base station by measuring the received power of the uplink reference signal of the UE in the neighboring cell.
  • the processor is further configured to: before the transceiver receives the uplink reference signal, according to the UE and a neighboring cell The distance information of the base station determines the neighboring cell to be measured.
  • a computer readable medium comprising computer executed instructions for performing the method of the first aspect when a central processor of a computer executes the computer executable instructions.
  • the method and device for determining a coordinated multi-point CoMP user are provided by the embodiment of the present invention.
  • the base station acquires the first uplink reference signal power value of the neighboring cell of the UE. And determining, by the second uplink reference signal power value of the serving cell, the UE is a C oMP user according to the first uplink reference signal power value and the first uplink reference signal power value, so that the UE cannot measure the neighboring cell.
  • the base station can also determine that the UE is a C oMP user, thereby improving system performance.
  • FIG. 1 is a schematic diagram of a method for determining a C oMP user according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of a method for determining a C oMP user according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic structural diagram of another base station according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a device of a base station according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram of another apparatus of a base station according to an embodiment of the present invention.
  • An embodiment of the present invention provides a method for determining a CoMP user. As shown in FIG. 1 , an execution entity of the method is a base station, including:
  • the base station determines whether the first downlink reference signal power value of the neighboring cell of the serving cell of the UE is obtained.
  • the base station acquires a first uplink reference signal power value of a neighboring cell of the serving cell of the UE and a second uplink reference signal power value of the serving cell, when the first downlink reference signal power value is not obtained.
  • the first uplink reference signal power value and the second uplink reference signal power value of the serving cell may be uplink RSRP in the LTE (Long Term E vo 1 uti on) system, and the UMTS (Universal Mobile Telecommunications System, In the system of the universal mobile communication system, the uplink RSCP (Received Signal Code Power) may be used in the system, which is not limited by the present invention.
  • LTE Long Term E vo 1 uti on
  • UMTS Universal Mobile Telecommunications System
  • the uplink RSCP Receiveived Signal Code Power
  • the base station receives the uplink reference signal, and the base station obtains the power value of the first uplink reference signal and the power value of the second uplink reference signal.
  • the base station measures the received power of the uplink reference signal sent by the UE in the serving cell, obtains the power value of the second uplink reference signal, and acquires the uplink reference that the neighboring cell of the neighboring cell transmits by measuring the UE in the neighboring cell.
  • the received power of the signal the obtained first uplink reference signal power value.
  • the uplink reference signal may be an SRS (Sounding Reference Signal) or a DMRS (Demodulation Reference Signal), which is not limited in the present invention.
  • SRS Sounding Reference Signal
  • DMRS Demodulation Reference Signal
  • the base station determines the first cooperative base station according to the first uplink reference signal power value and the second uplink reference signal power value.
  • the base station obtains a second uplink path loss value of the UE to the serving cell and a first uplink of the UE to the neighboring cell by using a difference between the first uplink reference signal power value and the second uplink reference signal power value.
  • the first uplink path loss value is the uplink reference signal transmit power of the UE.
  • the difference between the first uplink reference signal power value and the second uplink signal power uplink reference signal power value is the difference between the second uplink path loss value and the first uplink path loss value.
  • the difference between the second uplink path loss value and the first uplink path loss value is greater than or equal to a preset threshold, determining that the neighboring cell of the neighboring cell is the first cooperative base station.
  • the base station determines, according to the distance information of the UE and the base station of the neighboring cell, the neighboring cell to be measured, and measures the UE by using the base station of the neighboring cell to be measured.
  • the uplink reference signal obtains a first uplink reference signal power value.
  • determining, according to the distance information of the U E of the serving cell and the base station of the neighboring cell, the neighboring cell to be measured includes the following three situations:
  • Scenario 1 When the distance information of the U E and the neighboring cell of the neighboring cell is not obtained, it is determined that the neighboring cell of the UE is the neighboring cell to be measured.
  • Case 2 When the distance information of the U E and the base station of the neighboring cell is obtained, and the distance information is less than or equal to the distance threshold, the neighboring cell is determined to be the neighboring cell to be measured.
  • Scenario 3 When the distance information of the U E and the neighboring cell of the neighboring cell is obtained, and the distance information is greater than the distance threshold, it is determined that the neighboring cell is not the neighboring cell to be measured.
  • the base station when the distance information is less than or equal to the distance threshold, that is, the distance between the UE and the neighboring cell is relatively short, the base station only needs to obtain the uplink reference signal power value of the neighboring cell to be measured. In this way, the measurement complexity of the base station can be reduced, thereby reducing the workload of the base station.
  • the base station determines that the UE is a C oMP user.
  • the UE may measure and report the first downlink reference signal power value of the neighboring cell, but in actual applications, because the measurement capability of the UE is limited, for example, when the UE If the distance from the neighboring cell is relatively long or the downlink reference signal of the neighboring cell is low, the UE cannot measure the power value of the first downlink reference signal of the neighboring cell, and the UE cannot be determined as the C oMP user. At this time, by using the above steps S 1 0 1 to S 1 0 4 , it can be determined that the UE is a C oMP user.
  • the uplink reference signal power value is obtained by the base station by measuring the uplink reference signal, considering that the measurement of the uplink reference signal of the neighboring cell by the base station increases the working load of the base station, thereby reducing the service quality of the base station, and For the limitation of the measurement accuracy of the uplink reference signal, the downlink reference signal power value is still required to be obtained. Therefore, when the base station can obtain the first downlink reference signal power value of the neighboring cell of the UE, the base station passes the first downlink reference.
  • the signal power value determines whether the UE is a C oMP user, and the method includes: when the base station acquires the first downlink reference signal power value, the base station acquires a second downlink reference signal power value of the serving cell of the UE, according to the The first downlink reference signal power value and the second downlink reference signal power value determine the second cooperative base station, and when the second coordinated base station includes the base station of the neighboring cell, determine that the UE is a C oMP user.
  • the UE obtains the first downlink reference signal power value of the neighboring cell and the second downlink reference signal power value of the serving cell by using the first downlink reference signal power value and the second downlink reference signal power value.
  • the difference is greater than or equal to the preset threshold, the first downlink reference signal power value and the second downlink reference signal power value are reported to the base station, and the first downlink reference signal power value and the second downlink reference are used.
  • the base station to which the neighboring cell belongs is a cooperative base station that transmits data to the UE, and the base station according to the acquired signal transmission power value of the base station of the neighboring cell and the first a difference between the downlink reference signal power value and the first downlink path loss value; obtaining a second downlink path loss value according to a difference between the signal transmission power value of the base station and the second downlink reference signal power value, and obtaining the second downlink value
  • the difference between the path loss value and the first downlink path loss value so that when the difference between the second downlink path loss value and the first downlink path loss value is greater than or equal to a preset threshold value, determining the adjacent small Cooperative base station data relevant to the base station to receive the UE transmitted data in the cooperative base station and a cooperative base station transmits the receiving UE to transmit data to the UE, i.e., the second cooperative station, determines that the UE is a C oMP
  • the preset threshold value and the preset threshold value may be different values.
  • the base station acquires the first uplink reference signal power value of the neighboring cell of the UE and the second uplink reference signal power value of the serving cell, and finally The first uplink reference signal power value and the first uplink reference signal power value determine that the UE is a CoMP user, so that when the UE cannot measure the downlink reference signal power value of the neighboring cell, the base station can also determine that the UE is a CoMP user. , which improves system performance.
  • An embodiment of the present invention provides a method for determining a CoMP user. As shown in FIG. 1 , in the embodiment of the present invention, an uplink reference signal power value and a downlink reference signal power value are described by using an RSRP as an example. The method includes:
  • the serving cell of the base station includes the first UE and the second UE, where the first UE can measure the downlink RSRP of the neighboring cell of the serving cell, and the second UE cannot measure the neighbor.
  • the downlink RSRP of the cell includes the first UE and the second UE, where the first UE can measure the downlink RSRP of the neighboring cell of the serving cell, and the second UE cannot measure the neighbor.
  • the first UE acquires a first downlink RSRP of the neighboring cell and a second downlink RSRP of the serving cell.
  • the UE is configured with an event, and when the difference between the first downlink RSRP and the second downlink RSRP is greater than a preset threshold, the UE reports the first downlink RSRP and the second downlink RSRP to the base station.
  • the base station determines that the neighboring cell of the neighboring cell is a cooperative base station that transmits data to the UE.
  • the base station obtains a first downlink path loss value according to the first downlink RSRP, and obtains a second downlink path loss value according to the second downlink RSRP.
  • the base station obtains the first downlink path loss value according to the obtained difference between the signal transmission power value of the base station of the neighboring cell and the first downlink RSRP, and according to the signal transmission power value of the base station and the second downlink RSRP.
  • the difference is obtained by the second downlink path loss value.
  • S2 05 When the difference between the second downlink path loss value and the first downlink path loss value is greater than or equal to a preset threshold, the base station determines that the base station to which the neighboring cell belongs is a cooperative base station that receives data sent by the UE.
  • the cooperative base station that transmits data to the UE and the cooperative base station that receives data transmitted by the UE are the second cooperative base station.
  • the base station determines that the first UE is a CoMP user when determining that the second coordinated base station includes a base station of the neighboring cell.
  • steps S 2 07 to S 2 1 0 are performed for the second UE.
  • the base station obtains the first uplink RS RP of the neighboring cell of the second UE and the second uplink RS RP of the serving cell by measuring the uplink reference signal.
  • the base station before the base station acquires the power of the first uplink reference signal and the power of the second uplink reference signal, the base station receives the uplink reference signal, and the base station measures the received power of the uplink reference signal sent by the UE in the serving cell, to obtain the second uplink. And determining, by the reference signal power value, the first uplink reference signal power value obtained by the base station of the neighboring cell by measuring the received power of the uplink reference signal sent by the UE in the neighboring cell.
  • the uplink reference signal may be an SRS or a DMRS, which is not limited in the present invention.
  • the base station obtains a second uplink path loss value of the UE to the serving cell and a first uplink path loss value of the UE to the neighboring cell by using a difference between the first uplink RSRP and the second uplink RSRP. Difference.
  • the first uplink path loss value is a difference between the uplink reference signal transmit power value of the UE and the first uplink reference signal power value
  • the second uplink path loss value is an uplink reference signal transmit power value of the UE.
  • a difference between the power value of the first uplink reference signal, and the difference between the first uplink reference signal power value and the second uplink signal power uplink reference signal power value is a second uplink path loss value and The difference between the first uplink loss values.
  • the base station determines, when the difference between the second uplink path loss value and the first uplink path loss value is greater than or equal to a preset threshold, determining that the neighboring cell of the neighboring cell is the first coordinated base station.
  • the base station before receiving the uplink reference signal, is configured according to the UE and the neighboring cell.
  • the distance information of the associated base station determines the neighboring cell to be measured, and measures the uplink reference signal of the UE by the base station of the neighboring cell to be measured to obtain the first uplink reference signal power value.
  • determining, according to the distance information of the U E of the serving cell and the base station of the neighboring cell, the neighboring cell to be measured includes the following three situations:
  • Scenario 1 When the distance information of the U E and the neighboring cell of the neighboring cell is not obtained, it is determined that the neighboring cell of the UE is the neighboring cell to be measured.
  • Case 2 When the distance information of the U E and the base station of the neighboring cell is obtained, and the distance information is less than or equal to the distance threshold, the neighboring cell is determined to be the neighboring cell to be measured.
  • Scenario 3 When the distance information of the U E and the neighboring cell of the neighboring cell is obtained, and the distance information is greater than the distance threshold, it is determined that the neighboring cell is not the neighboring cell to be measured.
  • the base station when the distance information is less than or equal to the distance threshold, that is, the distance between the UE and the neighboring cell is relatively short, the base station only needs to obtain the uplink reference signal power value of the neighboring cell to be measured. In this way, the measurement complexity of the base station can be reduced, thereby reducing the workload of the base station.
  • the base station determines that the second U E is a C oMP user when determining that the first cooperative base station includes a base station of the neighboring cell.
  • the C oMP user when the UE can measure the downlink reference signal power value of the neighboring cell, the C oMP user is determined according to the downlink reference signal power value, and when the UE cannot measure the downlink RS RP, the base station acquires the neighboring cell of the serving cell of the UE.
  • the CoMP user can determine that the UE is a CoMP user for the UE that cannot measure the downlink reference signal power value of the neighboring cell.
  • the CoMP user is determined according to the obtained uplink reference signal power value and the downlink reference signal power value, thereby ensuring the base station.
  • the UEs in the serving cell may be identified as CoMP users, thereby improving system performance.
  • the embodiment of the present invention provides a base station 30, as shown in FIG. 3, including:
  • the determining unit 31 is configured to determine whether a first downlink reference signal power value of a neighboring cell of the serving cell of the UE is obtained.
  • the obtaining unit 32 is configured to: when the determining unit 31 determines that the first downlink reference signal power value is not acquired, acquire a first uplink reference signal power value of a neighboring cell of the serving cell of the UE, and a number of the serving cell Two uplink reference signal power values.
  • the first uplink reference signal power value and the second uplink reference signal power value of the serving cell may be an uplink RSRP in the LTE system, and may be an uplink RSCP in the UMTS system, which is not limited by the present invention.
  • the processing unit 33 is configured to determine, according to the first uplink reference signal power value and the second uplink reference signal power value acquired by the acquiring unit 32, the first cooperative base station, and the first coordinated base station includes the base station of the neighboring cell When the UE is determined to be a CoMP user.
  • the processing unit 33 is configured to obtain, by using a difference between the first uplink reference signal power value and the second uplink reference signal power value, a second uplink path loss value of the UE to the serving cell, and the UE. And a difference between the first uplink path loss value of the neighboring cell, and determining the first cooperative base station according to a difference between the second uplink path loss value and the first uplink path loss value.
  • the first uplink path loss value is a difference between the uplink reference signal transmit power value of the UE and the first uplink reference signal power value
  • the second uplink path loss value is an uplink reference signal transmit power value of the UE.
  • a difference between the power value of the first uplink reference signal, and the difference between the first uplink reference signal power value and the second uplink signal power uplink reference signal power value is a second uplink path loss value and The difference between the first uplink loss values.
  • the processing unit 33 is configured to: when the difference between the second uplink path loss value and the first uplink path loss value is greater than or equal to a preset threshold, determine that the neighboring cell of the neighboring cell is the first coordinated base station.
  • the base station 30 further includes: a receiving unit 34, configured to: before acquiring the first uplink reference signal power value of the neighboring cell of the UE and the second uplink reference signal power value of the serving cell , receiving the uplink reference signal.
  • the processing unit 33 is configured to: measure, according to the receiving cell, the received power of the uplink reference signal of the UE, obtain the power value of the second uplink reference signal, and acquire, by the base station of the neighboring cell, the measured by the neighboring cell.
  • the received power of the uplink reference signal of the UE, and the obtained first uplink reference signal power value is configured to: measure, according to the receiving cell, the received power of the uplink reference signal of the UE, obtain the power value of the second uplink reference signal, and acquire, by the base station of the neighboring cell, the measured by the neighboring cell.
  • the uplink reference signal may be an SRS or a DMRS, which is not limited in the present invention.
  • the determining unit 31 is further configured to determine a neighboring cell to be measured according to distance information between the UE and a base station of the neighboring cell before the receiving unit 34 receives the uplink reference signal.
  • the obtaining unit 32 is further configured to: when the determining unit 31 determines that the first downlink reference signal power value of the neighboring cell of the UE is obtained, acquire the second downlink reference signal power of the serving cell of the UE. value.
  • the processing unit 33 is further configured to: determine, according to the first downlink reference signal power value and the second downlink reference signal power value acquired by the acquiring unit 32, the second coordinated base station, and include the neighboring cell in the second coordinated base station.
  • the base station belongs to it is determined that the UE is a CoMP user.
  • the base station When the UE is unable to measure the downlink reference signal power value of the neighboring cell, the base station acquires the first uplink reference signal power value of the neighboring cell of the serving cell of the UE and the second uplink reference signal power of the serving cell. And determining, according to the first uplink reference signal power value and the first uplink reference signal power value, that the UE is a CoMP user, so that the base station can determine the base station when the UE cannot measure the downlink reference signal power value of the neighboring cell.
  • the UE is a CoMP user, which improves system performance.
  • the base station 50 includes: a processor 51, a communication interface 52, a memory 53 and a communication bus 54;
  • the processor 51, the communication interface 52, and the memory 53 complete communication with each other via the communication bus 54.
  • the processor 51 may be a central processing unit CPU, or an ASIC (Application Specific Integrated Circuit), or one or more integrated circuits that are implemented by the embodiment of the present invention.
  • CPU central processing unit
  • ASIC Application Specific Integrated Circuit
  • the memory 53 is for storing program code, and the program code includes computer operation instructions.
  • Memory 53 may contain high speed RAM memory and may also include non-volatile memory, such as at least one disk memory.
  • the communication interface 52 is configured to implement connection communication between the devices.
  • the processor 51 executes the program code, and is used to determine whether the first downlink reference signal power value of the neighboring cell of the serving cell of the UE is obtained, and when it is determined that the power value of the first downlink reference signal is not obtained, The first uplink reference signal power value of the neighboring cell of the serving cell of the UE and the second uplink reference signal power value of the serving cell, and according to the obtained first uplink reference signal power value and the second uplink reference signal power value Determining the first cooperative base station, and determining that the UE is a CoMP user when the first coordinated base station includes a base station of the neighboring cell.
  • the processor 51 is configured to: when determining the first downlink reference signal power value of the neighboring cell of the UE, obtain the second downlink reference signal power value of the serving cell of the UE, and according to The first downlink reference signal power value and the second downlink reference signal power value determine the second cooperative base station, and when the second coordinated base station includes the base station of the neighboring cell, determine that the UE is a CoMP user.
  • the processor 51 is configured to obtain, by using a difference between the first uplink reference signal power value and the second uplink reference signal power value, a second uplink path loss value of the UE to the serving cell, and the The difference between the UE and the first uplink path loss value of the neighboring cell, And determining, according to the difference between the second uplink path loss value and the first uplink path loss value, the first cooperative base station.
  • the processor 51 is specifically configured to: when the difference between the second uplink path loss value and the first uplink path loss value is greater than or equal to a preset threshold, determine a base station of the neighboring cell. It is the first cooperative base station.
  • the base station 50 further includes: a transceiver 5 5, the transceiver is connected to the processor through the communication bus, and the transceiver 55 is configured to acquire a neighboring cell of the UE. Receiving an uplink reference signal before the first uplink reference signal power value and the second uplink reference signal power value of the serving cell;
  • the processor 51 is specifically configured to: in the serving cell, measure the received power of the uplink reference signal of the UE received by the transceiver, obtain the power value of the second uplink reference signal, and obtain the belonging of the neighboring cell. And obtaining, by the base station, the first uplink reference signal power value by measuring the received power of the uplink reference signal of the UE in the neighboring cell.
  • the processor 51 is further configured to determine, according to the distance information of the U E and the base station of the neighboring cell, the neighboring cell to be measured, before the transceiver receives the uplink reference signal.
  • An embodiment of the present invention provides a computer readable medium, comprising computer executed instructions, when the central processor of the computer executes the computer to execute an instruction, the computer executes the processor 5 1 of the base station described in FIG. 5 or FIG. 6 above.
  • the program code that is executed is executed.
  • the foregoing method includes the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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Abstract

本发明提供一种确定协作多点（CoMP）用户的方法和设备，涉及通信领域，以实现在用户终端（UE）无法测量相邻小区下行参考信号功率值时，基站能够确定该UE为CoMP用户。该方法包括：基站确定是否获取到UE的服务小区的相邻小区的第一下行参考信号功率值（S101），在未获取到该第一下行参考信号功率值时，基站获取该UE的服务小区的相邻小区的第一上行参考信号功率值和该服务小区的第二上行参考信号功率值（S102），基站根据该第一上行参考信号功率值和该第二上行参考信号功率值确定第一协作基站（S103），在该第一协作基站包括该相邻小区的所属基站时，基站确定该UE为CoMP用户（S104）。本发明实施例用于确定CoMP用户。

Description

一种确定 CoMP用户的方法和设备 技术领域
本发明涉及通信领域， 尤其涉及一种确定 CoMP用户的方法和设 备。
背景技术
CoMP ( Coordinated Multi-point, 协作多点） 通过各协作基站 的合作提升系统性能， 例如： 联合传输、 联合调度等， 现有技术中， 基站可以通过 UE ( User Equipment , 用户终端 ） 测量上 4艮的下行 RSRP (Reference Signal Receiving Power , 参考信号接收功率）确 定该 UE为 CoMP用户。
但是， 由于 UE测量下行 RSRP的能力有限（如当 UE距离相邻小 区的距离较远或者相邻小区的下行参考信号发射功率较低）， 当 UE 无法测量相邻小区的下行 RSRP时，则基站不能确定该 UE是否为 CoMP 用户， 从而使得该 UE 不会被确定为 CoMP用户， 进而影响了系统性 能。
发明内容
本发明的实施例提供一种确定 CoMP用户的方法和设备， 以实现 在 UE 无法测量相邻小区下行参考信号功率值时， 基站能够确定该 UE为 CoMP用户。
第一方面， 提供一种确定 CoMP用户的方法， 包括：
基站确定是否获取到用户设备 UE 的服务小区的相邻小区的第 一下行参考信号功率值；
在未获取到所述第一下行参考信号功率值时， 获取所述 UE的服 务小区的相邻小区的第一上行参考信号功率值和所述服务小区的第 二上行参考信号功率值；
根据所述第一上行参考信号功率值和所述第二上行参考信号功 率值确定第一协作基站； 在所述第一协作基站包括所述相邻小区的所属基站时， 确定所 述 UE为 C oMP用户。
在第一方面第一种可能的实现方式中， 所述方法还包括： 在获 取到所述第一下行参考信号功率值时， 所述基站获取所述 UE的服务 小区的第二下行参考信号功率值；
根据所述第一下行参考信号功率值和所述第二下行参考信号功 率值确定第二协作基站；
在所述第二协作基站包括所述相邻小区的所属基站时， 确定所 述 UE为 C oMP用户。
结合第一方面或第一方面第一种可能的实现方式， 在第二种可 能的实现方式中， 所述根据所述第一上行参考信号功率值和所述第 二上行参考信号功率值确定第一协作基站包括：
通过所述第一上行参考信号功率值与所述第二上行参考信号功 率值的差值得到所述 U E 至该服务小区的第二上行路损值与所述 U E 至该相邻小区的第一上行路损值的差值；
根据所述第二上行路损值与所述第一上行路损值的差值确定所 述第一协作基站。
结合第二种可能的实现方式， 在第三种可能的实现方式中， 所 述根据所述第二上行路损值与所述第一上行路损值的差值确定所述 第一协作基站包括：
在所述第二上行路损值与所述第一上行路损值的差值大于或等 于预设阔值时， 确定所述相邻小区的所属基站为第一协作基站。
结合第一方面至第一方面第三种可能的实现方式中的任一种， 在所述获取所述 U E 的相邻小区的第一上行参考信号功率值和所述 UE的服务小区的第二上行参考信号功率值前， 所述方法还包括： 接收上行参考信号；
所述获取所述 UE 的相邻小区的第一上行参考信号功率值和所 述 UE的服务小区的第二上行参考信号功率值包括：
在所述服务小区测量所述 U E的上行参考信号的接收功率， 得到 所述第二上行参考信号功率值， 并获取所述相邻小区的所属基站通 过在所述相邻小区测量所述 UE的上行参考信号的接收功率， 得到的 所述第一上行参考信号功率值。
结合第四种可能的实现方式， 在第五种可能的实现方式中， 在 所述接收所述上行参考信号前， 所述方法还包括：
根据所述 UE 与相邻小区的所属基站的距离信息确定待测量的 相邻小区。
第二方面， 提供一种基站， 包括：
确定单元， 用于确定是否获取到 U E的服务小区的相邻小区的第 一下行参考信号功率值；
获取单元， 用于在所述确定单元确定未获取到所述第一下行参 考信号功率值时， 获取所述 U E的服务小区的相邻小区的第一上行参 考信号功率值和所述服务小区的第二上行参考信号功率值；
处理单元， 用于根据所述获取单元获取的第一上行参考信号功 率值和所述第二上行参考信号功率值确定第一协作基站， 并在所述 第一协作基站包括所述相邻小区的所属基站时，确定所述 UE为 C oMP 用户。
在第二方面第一种可能的实现方式中， 所述获取单元还用于， 在所述确定单元确定获取到所述 UE 的相邻小区的第一下行参考信 号功率值时， 获取所述 UE的服务小区的第二下行参考信号功率值； 所述处理单元还用于， 根据所述获取单元获取的第一下行参考 信号功率值和所述第二下行参考信号功率值确定第二协作基站， 并 在所述第二协作基站包括所述相邻小区的所属基站时， 确定所述 U E 为 C oMP用户。
结合第二方面或第二方面第一种可能的实现方式， 在第二种可 能的实现方式中， 所述处理单元具体用于， 通过所述第一上行参考 信号功率值与所述第二上行参考信号功率值的差值得到所述 UE 至 所述服务小区的第二上行路损值与所述 UE 至所述相邻小区的第一 上行路损值的差值； 根据所述第二上行路损值与所述第一上行路损值的差值确定所 述第一协作基站。
结合第二种可能的实现方式， 在第三种可能的实现方式中， 所 述处理单元具体用于， 在所述第二上行路损值与所述第一上行路损 值的差值大于或等于预设阔值时， 确定所述相邻小区的所属基站为 第一协作基站。
结合第二方面至第二方面第三种可能的实现方式中的任一种， 在第四种可能的实现方式中， 所述基站还包括： 接收单元， 用于在 获取所述 UE 的相邻小区的第一上行参考信号功率值和所述服务小 区的第二上行参考信号功率值前， 接收上行参考信号；
所述处理单元具体用于， 在所述服务小区测量所述 U E的上行参 考信号的接收功率， 得到所述第二上行参考信号功率值， 并获取所 述相邻小区的所属基站通过在所述相邻小区测量所述 UE 的上行参 考信号的接收功率， 得到的所述第一上行参考信号功率值。
结合第四种可能的实现方式， 在第五种可能的实现方式中， 所 述确定单元还用于， 在所述接收单元接收所述上行参考信号前， 根 据所述 UE 与相邻小区的所属基站的距离信息确定待测量的相邻小 区。
第三方面， 提供一种基站， 包括： 处理器和存储器， 所述存储 器存储计算机执行指令， 所述处理器与所述存储器通过通信总线连 接；
当所述基站运行时， 所述处理器执行所述存储器存储的所述计 算机执行指令， 用于确定是否获取到 UE的服务小区的相邻小区的第 一下行参考信号功率值， 在确定未获取到所述第一下行参考信号功 率值时， 获取所述 U E的服务小区的相邻小区的第一上行参考信号功 率值和所述服务小区的第二上行参考信号功率值， 并根据获取的第 一上行参考信号功率值和所述第二上行参考信号功率值确定第一协 作基站， 并在所述第一协作基站包括所述相邻小区的所属基站时， 确定所述 UE为 C oMP用户。 在第三方面第一种可能的实现方式中， 所述处理器具体用于， 在确定获取到所述 UE的相邻小区的第一下行参考信号功率值时， 获 取所述 UE的服务小区的第二下行参考信号功率值， 并根据所述第一 下行参考信号功率值和所述第二下行参考信号功率值确定第二协作 基站， 并在所述第二协作基站包括所述相邻小区的所属基站时， 确 定所述 UE为 C oMP用户。
结合第三方面或第三方面第一种可能的实现方式， 在第二种可 能的实现方式中， 所述处理器具体用于， 通过所述第一上行参考信 号功率值与所述第二上行参考信号功率值的差值得到所述 UE 至所 述服务小区的第二上行路损值与所述 UE 至所述相邻小区的第一上 行路损值的差值， 并根据所述第二上行路损值与所述第一上行路损 值的差值确定所述第一协作基站。
结合第二种可能的实现方式， 在第三种可能的实现方式中， 所 述处理器具体用于， 在所述第二上行路损值与所述第一上行路损值 的差值大于或等于预设阔值时， 确定所述相邻小区的所属基站为第 一协作基站。
结合第三方面至第三方面第三种可能的实现方式中的任一种， 在第四种可能的实现方式中， 所述基站还包括： 收发器， 所述收发 器与所述处理器通过所述通信总线相连， 所述收发器用于， 在获取 所述 UE 的相邻小区的第一上行参考信号功率值和所述服务小区的 第二上行参考信号功率值前， 接收上行参考信号；
所述处理器具体用于， 在所述服务小区测量所述收发器接收的 所述 UE的上行参考信号的接收功率， 得到所述第二上行参考信号功 率值， 并获取所述相邻小区的所属基站通过在所述相邻小区测量所 述 UE的上行参考信号的接收功率， 得到的所述第一上行参考信号功 率值。
结合第四种可能的实现方式， 在第五种可能的实现方式中， 所 述处理器还用于， 在所述收发器接收所述上行参考信号前， 根据所 述 UE与相邻小区的所属基站的距离信息确定待测量的相邻小区。 第四方面， 提供一种计算机可读介质， 包含计算机执行指令， 当计算机的中央处理器执行所述计算机执行指令时， 所述计算机执 行执行第一方面所述的方法。
本发明实施例提供的一种确定多点协作 C oMP 用户的方法和设 备， 当 UE 无法测量相邻小区的下行参考信号功率值时， 基站获取 UE的相邻小区的第一上行参考信号功率值和服务小区的第二上行参 考信号功率值， 最终根据该第一上行参考信号功率值以及该第一上 行参考信号功率值确定该 U E为 C oMP用户， 从而使得在该 UE无法测 量相邻小区的下行参考信号功率值时，基站也能够确定该 UE为 C oMP 用户， 进而提升了系统性能。
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简单地介绍， 显而易见地， 下面描述中的附图仅仅是本发明的一些实施例， 对于 本领域普通技术人员来讲， 在不付出创造性劳动的前提下， 还可以 根据这些附图获得其他的附图。
图 1 为本发明实施例提供的一种确定 C oMP用户的方法示意图； 图 2为本发明实施例提供的一种确定 C oMP用户的方法的流程示 意图；
图 3为本发明实施例提供的一种基站的结构示意图；
图 4为本发明实施例提供的另一种基站的结构示意图；
图 5为本发明实施例提供的一种基站的装置示意图；
图 6为本发明实施例提供的另一种基站的装置示意图。
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做出创造性劳动前提下所获得的所有其他 实施例， 都属于本发明保护的范围。 本发明实施例提供一种确定 CoMP用户的方法， 如图 1所示， 该 方法的执行主体为基站， 包括：
5101、基站确定是否获取到 UE的服务小区的相邻小区的第一下 行参考信号功率值；
5102、 在未获取到该第一下行参考信号功率值时， 基站获取该 UE的服务小区的相邻小区的第一上行参考信号功率值和该服务小区 的第二上行参考信号功率值。
其中， 该第一上行参考信号功率值和服务小区的第二上行参考 信号功率值在 LTE ( Long Term E vo 1 u t i on,长期演进） 系统中可以 为上行 RSRP , 在 UMTS ( Universal Mobile Telecommunications System, 通用移动通信系统） 系统中可以为上行 RSCP ( Received Signal Code Power, 接收信号码功率）， 本发明对此不作限定。
进一步地， 在基站获取该第一上行参考信号功率和第二上行参 考信号功率之前， 基站接收上行参考信号， 则上述基站获取该第一 上行参考信号功率值和第二上行参考信号功率值具体可以是基站在 该服务小区测量该 UE发送的上行参考信号的接收功率， 得到该第二 上行参考信号功率值， 并获取该相邻小区的所属基站通过在该相邻 小区测量该 U E发送的上行参考信号的接收功率， 得到的该第一上行 参考信号功率值。
其中，该上行参考信号可以是 SRS( Sounding Reference Signal, 探测参考信号） 或者 DMRS ( Demodulat ion Reference Signal , 解 调参考信号）， 本发明不作限定。
5103、 基站根据该第一上行参考信号功率值和该第二上行参考 信号功率值确定第一协作基站。
具体地， 基站通过该第一上行参考信号功率值与该第二上行参 考信号功率值的差值得到该 UE 至该服务小区的第二上行路损值与 该 UE至该相邻小区的第一上行路损值的差值， 并根据该第二上行路 损值与该第一上行路损值的差值确定该第一协作基站。
需要说明的是， 第一上行路损值为该 UE的上行参考信号发射功 率值与该第一上行参考信号功率值的差值， 第二上行路损值为该 U E 的上行参考信号发射功率值与该第一上行参考信号功率值的差值， 由此可得， 该第一上行参考信号功率值与该第二上行信号功率上行 参考信号功率值的差值即为第二上行路损值与该第一上行路损值的 差值。
进一步地， 当该第二上行路损值与该第一上行路损值的差值大 于或等于预设阔值时， 确定该相邻小区的所属基站为第一协作基站。
可选地， 在接收该上行参考信号前， 基站根据该 U E与相邻小区 的所属基站的距离信息确定待测量的相邻小区， 并通过该待测量的 相邻小区的所属基站测量该 UE 的上行参考信号得到第一上行参考 信号功率值。
具体地， 上述根据该服务小区的 U E的与相邻小区的所属基站的 距离信息确定待测量的相邻小区包括以下三种情形：
情形一： 当未获取到该 U E 与相邻小区的所属基站的距离信息 时， 则确定该 UE的相邻小区即为该待测量的相邻小区。
情形二： 当获取到该 U E与相邻小区的所属基站的距离信息， 并 且该距离信息小于或等于距离门限值时， 则确定该相邻小区为该待 测量的相邻小区。
情形三： 当获取到该 U E与相邻小区的所属基站的距离信息， 并 且该距离信息大于距离门限值时， 则确定该相邻小区不是该待测量 的相邻小区。
对于上述情形二， 当该距离信息小于或等于距离门限值时， 即 UE与该相邻小区的距离较近， 基站只需要获取该待测量的相邻小区 的上行参考信号功率值即可， 这样， 能够减少基站的测量的复杂度， 从而降低基站的工作负担。
S 1 04、 在该第一协作基站包括该相邻小区的所属基站时， 基站 确定该 UE为 C oMP用户。
需要说明的是， UE可以测量并上报相邻小区的第一下行参考信 号功率值， 但在实际应用中， 由于 UE 的测量能力有限， 例如当 U E 距离相邻小区的距离较远或者相邻小区的下行参考信号发射功率较 低， UE无法测量到相邻小区的第一下行参考信号功率值， 也就无法 确定该 UE 为 C oMP 用户， 此时， 通过釆用上述步骤 S 1 0 1 至 S 1 0 4 , 能够确定该 U E为 C oMP用户。
进一步地， 由于上行参考信号功率值是由基站通过测量上行参 考信号得到的， 考虑到基站对相邻小区的上行参考信号的测量会增 加基站的工作负担， 从而降低基站的服务质量， 另外， 由于上行参 考信号测量精度的限制， 仍需要获取下行参考信号功率值， 因此， 优选地， 基站在能够获取到 U E的相邻小区的第一下行参考信号功率 值时， 通过该第一下行参考信号功率值确定该 U E是否为 C oMP用户， 具体包括： 在该基站获取到该第一下行参考信号功率值时， 该基站 获取该 UE的服务小区的第二下行参考信号功率值， 根据该第一下行 参考信号功率值和该第二下行参考信号功率值确定第二协作基站， 并在该第二协作基站包括该相邻小区的所属基站时， 确定该 UE 为 C oMP用户。
具体地， U E通过测量得到相邻小区的第一下行参考信号功率值 和服务小区的第二下行参考信号功率值， 并在第一下行参考信号功 率值与第二下行参考信号功率值的差值大于或等于预设门限值时， 将该第一下行参考信号功率值与第二下行参考信号功率值上报至基 站， 并在该第一下行参考信号功率值与第二下行参考信号功率值的 差值大于或等于预设阔值时， 确定该相邻小区的所属基站为向 UE传 输数据的协作基站， 基站根据获取的相邻小区的所属基站的信号发 射功率值与该第一下行参考信号功率值的差值得到第一下行路损 值； 根据该基站的信号发射功率值与第二下行参考信号功率值的差 值得到第二下行路损值， 并得到第二下行路损值与第一下行路损值 的差值， 从而在该第二下行路损值与第一下行路损值的差值大于或 等于预设阔值时， 确定该相邻小区的所属基站为接收 UE发送的数据 的协作基站， 上述向 U E传输数据的协作基站和接收 UE发送的数据 的协作基站即第二协作基站， 确定该 UE为 C oMP用户。 需要说明的是， 上述预设门限值和预设阔值可以是不同值。 通过釆用上述方案， 当 UE无法测量相邻小区的下行参考信号功 率值时， 基站获取 UE的相邻小区的第一上行参考信号功率值和服务 小区的第二上行参考信号功率值， 最终根据该第一上行参考信号功 率值以及该第一上行参考信号功率值确定该 UE 为 CoMP用户， 从而 使得在该 UE无法测量相邻小区下行参考信号功率值时， 基站也能够 确定该 UE为 CoMP用户， 进而提升了系统性能。 本发明实施例提供一种确定 CoMP用户的方法， 如图 1所示， 本 发明实施例中， 上行参考信号功率值和下行参考信号功率值以 RSRP 为例进行说明， 该方法包括：
需要说明的是， 本实施例中， 基站的服务小区内包括第一 UE和 第二 UE , 该第一 UE 能够测量该服务小区的相邻小区的下行 RSRP , 该第二 UE无法测量该相邻小区的下行 RSRP。
S201、 第一 UE获取相邻小区的第一下行 RSRP和服务小区的第 二下行 RSRP。
S202、 在该第一下行 RSRP 与第二下行 RSRP 的差值大于预设门 限值时， 第一 UE将该第一下行 RSRP和第二下行 RSRP上报至基站。
具体地， UE配置有上^艮事件， 当第一下行 RSRP和第二下行 RSRP 的差值大于预设门限值时， UE将该第一下行 RSRP和第二下行 RSRP 上报至基站。
S203、 基站在该第一下行 RSRP 与第二下行 RSRP 的差值大于或 等于预设阔值时， 确定该相邻小区的所属基站为向 UE传输数据的协 作基站。
S204、 基站根据该第一下行 RSRP得到第一下行路损值， 并根据 第二下行 RSRP得到第二下行路损值。
具体地， 基站根据获取的相邻小区的所属基站的信号发射功率 值与该第一下行 RSRP的差值得到第一下行路损值， 并根据该基站的 信号发射功率值与第二下行 RSRP的差值得到第二下行路损值。 S 2 05、 基站在该第二下行路损值与第一下行路损值的差值大于 或等于预设阔值时， 确定该相邻小区的所属基站为接收 UE发送的数 据的协作基站。
上述向 UE传输数据的协作基站和接收 UE发送的数据的协作基 站即第二协作基站。
S 2 06、 基站在确定该第二协作基站包括该相邻小区的所属基站 时， 确定该第一 UE为 CoMP用户。
进一步地， 由于第二 UE 无法测量相邻小区的下行 RS RP , 因此 对于第二 UE则执行步骤 S 2 07至 S 2 1 0。
S 2 07、基站通过测量上行参考信号得到第二 UE的相邻小区的第 一上行 RS RP和服务小区的第二上行 RS RP。
具体地， 在基站获取该第一上行参考信号功率和第二上行参考 信号功率之前， 基站接收上行参考信号， 基站在该服务小区测量该 UE发送的上行参考信号的接收功率， 得到该第二上行参考信号功率 值， 并获取该相邻小区的所属基站通过在该相邻小区测量该 UE发送 的上行参考信号的接收功率， 得到的该第一上行参考信号功率值。
其中， 该上行参考信号可以是 SRS或者 DMRS , 本发明不作限定。
S 2 08、 基站通过该第一上行 RSRP 与该第二上行 RSRP 的差值得 到该 UE至该服务小区的第二上行路损值与该 UE 至该相邻小区的第 一上行路损值的差值。
需要说明的是， 第一上行路损值为该 UE的上行参考信号发射功 率值与该第一上行参考信号功率值的差值， 第二上行路损值为该 UE 的上行参考信号发射功率值与该第一上行参考信号功率值的差值， 由此可得， 该第一上行参考信号功率值与该第二上行信号功率上行 参考信号功率值的差值即为第二上行路损值与该第一上行路损值的 差值。
S 2 09、 基站在该第二上行路损值与该第一上行路损值的差值大 于或等于预设阔值时， 确定该相邻小区的所属基站为第一协作基站。
可选地， 在接收该上行参考信号前， 基站根据该 UE与相邻小区 的所属基站的距离信息确定待测量的相邻小区， 并通过该待测量的 相邻小区的所属基站测量该 UE 的上行参考信号得到第一上行参考 信号功率值。
具体地， 上述根据该服务小区的 U E的与相邻小区的所属基站的 距离信息确定待测量的相邻小区包括以下三种情形：
情形一： 当未获取到该 U E 与相邻小区的所属基站的距离信息 时， 则确定该 UE的相邻小区即为该待测量的相邻小区。
情形二： 当获取到该 U E与相邻小区的所属基站的距离信息， 并 且该距离信息小于或等于距离门限值时， 则确定该相邻小区为该待 测量的相邻小区。
情形三： 当获取到该 U E与相邻小区的所属基站的距离信息， 并 且该距离信息大于距离门限值时， 则确定该相邻小区不是该待测量 的相邻小区。
对于上述情形二， 当该距离信息小于或等于距离门限值时， 即 UE与该相邻小区的距离较近， 基站只需要获取该待测量的相邻小区 的上行参考信号功率值即可， 这样， 能够减少基站的测量的复杂度， 从而降低基站的工作负担。
S 2 1 0、 基站在确定该第一协作基站包括该相邻小区的所属基站 时， 确定该第二 U E为 C oMP用户。
需要说明的是， 对于上述的各方法实施例， 为了简单描述， 故 将其都表述为一系列的动作组合， 但是本领域技术人员应该知悉， 本发明并不受所描述的动作顺序的限制。 其次， 本领域技术人员也 应该知悉， 说明书中所描述的实施例均属于优选实施例， 所涉及的 动作和模块并不一定是本发明所必须的。
釆用上述方案， 当 U E能够测量相邻小区的下行参考信号功率值 时， 根据下行参考信号功率值确定 C oMP用户， 当 U E无法测量下行 R S RP 时， 基站获取 UE 的服务小区的相邻小区的第一上行参考信号 功率值和服务小区的第二上行参考信号功率值， 最终根据该第一上 行参考信号功率值以及该第一上行参考信号功率值确定该 UE 为 CoMP用户， 对于无法测量相邻小区下行参考信号功率值的 UE, 基站 也能够确定该 UE 为 CoMP用户， 这样， 根据获取的上行参考信号功 率值和下行参考信号功率值确定 CoMP用户， 从而保证基站服务小区 内的 UE都有可能被确定为 CoMP用户， 进而提升了系统性能。 本发明实施例提供一种基站 30, 如图 3所示， 包括：
确定单元 31 , 用于确定是否获取到 UE 的服务小区的相邻小区 的第一下行参考信号功率值。
获取单元 32, 用于在该确定单元 31 确定未获取到该第一下行 参考信号功率值时， 获取该 UE的服务小区的相邻小区的第一上行参 考信号功率值和该服务小区的第二上行参考信号功率值。
其中， 该第一上行参考信号功率值和服务小区的第二上行参考 信号功率值在 LTE 系统中可以为上行 RSRP, 在 UMTS 系统中可以为 上行 RSCP, 本发明对此不作限定。
处理单元 33, 用于根据该获取单元 32 获取的第一上行参考信 号功率值和该第二上行参考信号功率值确定第一协作基站， 并在该 第一协作基站包括该相邻小区的所属基站时， 确定该 UE为 CoMP用 户。
可选地， 该处理单元 33具体用于， 通过该第一上行参考信号功 率值与该第二上行参考信号功率值的差值得到该 UE 至该服务小区 的第二上行路损值与该 UE至该相邻小区的第一上行路损值的差值， 并根据该第二上行路损值与该第一上行路损值的差值确定该第一协 作基站。
需要说明的是， 第一上行路损值为该 UE的上行参考信号发射功 率值与该第一上行参考信号功率值的差值， 第二上行路损值为该 UE 的上行参考信号发射功率值与该第一上行参考信号功率值的差值， 由此可得， 该第一上行参考信号功率值与该第二上行信号功率上行 参考信号功率值的差值即为第二上行路损值与该第一上行路损值的 差值。 该处理单元 33具体用于， 在该第二上行路损值与该第一上行路 损值的差值大于或等于预设阔值时， 确定该相邻小区的所属基站为 第一协作基站。
进一步地， 如图 4 所示， 该基站 30还包括： 接收单元 34, 用 于在获取该 UE 的相邻小区的第一上行参考信号功率值和该服务小 区的第二上行参考信号功率值前， 接收上行参考信号。
该处理单元 33 具体用于， 在该服务小区测量该 UE 的上行参考 信号的接收功率， 得到该第二上行参考信号功率值， 并获取该相邻 小区的所属基站通过在该相邻小区测量该 UE 的上行参考信号的接 收功率， 得到的该第一上行参考信号功率值。
其中， 该上行参考信号可以是 SRS或者 DMRS, 本发明不作限定。 进一步地， 该确定单元 31 还用于， 在该接收单元 34接收该上 行参考信号前， 根据该 UE与相邻小区的所属基站的距离信息确定待 测量的相邻小区。
更进一步地， 该获取单元 32还用于， 在该确定单元 31 确定获 取到该 UE 的相邻小区的第一下行参考信号功率值时， 获取该 UE 的 服务小区的第二下行参考信号功率值。
该处理单元 33还用于， 根据该获取单元 32 获取的第一下行参 考信号功率值和该第二下行参考信号功率值确定第二协作基站， 并 在该第二协作基站包括该相邻小区的所属基站时，确定该 UE为 CoMP 用户。
通过釆用上述基站， 当 UE无法测量相邻小区的下行参考信号功 率值时， 基站获取该 UE的服务小区的相邻小区的第一上行参考信号 功率值和服务小区的第二上行参考信号功率值， 最终根据该第一上 行参考信号功率值以及该第一上行参考信号功率值确定该 UE 为 CoMP 用户， 从而使得在该 UE 无法测量相邻小区下行参考信号功率 值时， 基站也能够确定该 UE为 CoMP用户， 进而提升了系统性能。
所属本领域的技术人员可以清楚地了解到， 为描述的方便和简 洁， 上述描述的基站的具体工作过程和描述， 可以参考前述方法实 施例中的对应过程， 在此不再赘述。 本发明实施例提供一种基站 50, 如图 5所示， 该基站 50 包括： 处理器( processor )51、通信接口 ( Communi cations Interface ) 52、 存储器 （ memory ) 53 和通信总线 54; 其中， 所述处理器 51、 所述通信接口 52和所述存储器 53通过所述通信总线 54完成相互间 的通信。
处理器 51 可能是一个中央处理器 CPU, 或者是特定集成电路 ASIC ( Ap lication Specific Integrated Circuit ), 或者是被西己 置成实施本发明实施例的一个或多个集成电路。
存储器 53用于存放程序代码， 所述程序代码包括计算机操作指 令。 存储器 53可能包含高速 RAM存储器， 也可能还包括非易失性存 储器 ( non-vo la t i le memory ), 例如至少一个磁盘存储器。
所述通信接口 52, 用于实现这些装置之间的连接通信。
所述处理器 51 执行程序代码， 用于确定是否获取到 UE 的服务 小区的相邻小区的第一下行参考信号功率值， 在确定未获取到该第 一下行参考信号功率值时， 获取该 UE的服务小区的相邻小区的第一 上行参考信号功率值和该服务小区的第二上行参考信号功率值， 并 根据获取的第一上行参考信号功率值和该第二上行参考信号功率值 确定第一协作基站， 并在该第一协作基站包括该相邻小区的所属基 站时， 确定该 UE为 CoMP用户。
可选地， 该处理器 51 具体用于， 在确定获取到该 UE 的相邻小 区的第一下行参考信号功率值时， 获取该 UE的服务小区的第二下行 参考信号功率值， 并根据该第一下行参考信号功率值和该第二下行 参考信号功率值确定第二协作基站， 并在该第二协作基站包括该相 邻小区的所属基站时， 确定该 UE为 CoMP用户。
可选地， 所述处理器 51具体用于， 通过该第一上行参考信号功 率值与该第二上行参考信号功率值的差值得到该 UE 至该服务小区 的第二上行路损值与该 UE至该相邻小区的第一上行路损值的差值， 并根据该第二上行路损值与该第一上行路损值的差值确定该第一协 作基站。
可选地， 所述处理器 5 1具体用于， 在该第二上行路损值与该第 一上行路损值的差值大于或等于预设阔值时， 确定该相邻小区的所 属基站为第一协作基站。
进一步地， 如图 6 所示， 所述基站 5 0还包括： 收发器 5 5 , 该 收发器与该处理器通过该通信总线相连， 该收发器 5 5用于在获取该 UE的相邻小区的第一上行参考信号功率值和该服务小区的第二上行 参考信号功率值前， 接收上行参考信号；
所述处理器 5 1 具体用于， 在该服务小区测量该收发器 5 5接收 的该 UE的上行参考信号的接收功率， 得到该第二上行参考信号功率 值， 并获取该相邻小区的所属基站通过在该相邻小区测量该 U E的上 行参考信号的接收功率， 得到的该第一上行参考信号功率值。
可选地， 所述处理器 5 1 还用于， 在该收发器 5 5接收该上行参 考信号前， 根据该 U E与相邻小区的所属基站的距离信息确定待测量 的相邻小区。
本发明实施例提供一种计算机可读介质， 包含计算机执行指令， 当计算机的中央处理器执行所述计算机执行指令时， 所述计算机执 行上述图 5或图 6描述的基站的处理器 5 1 所执行的程序代码。
本领域普通技术人员可以理解： 实现上述方法实施例的全部或 部分步骤可以通过程序指令相关的硬件来完成， 前述的程序可以存 储于一计算机可读取存储介质中， 该程序在执行时， 执行包括上述 方法实施例的步骤； 而前述的存储介质包括： R0M、 RAM , 磁碟或者 光盘等各种可以存储程序代码的介质。
以上所述， 仅为本发明的具体实施方式， 但本发明的保护范围 并不局限于此， 任何熟悉本技术领域的技术人员在本发明揭露的技 术范围内， 可轻易想到变化或替换， 都应涵盖在本发明的保护范围 之内。 因此， 本发明的保护范围应所述以权利要求的保护范围为准。

Claims

权 利 要 求 书
1、 一种确定多点协作 C oMP用户的方法， 其特征在于， 包括： 基站确定是否获取到用户设备 UE 的服务小区的相邻小区的第一 下行参考信号功率值；
在未获取到所述第一下行参考信号功率值时， 获取所述 UE 的服 务小区的相邻小区的第一上行参考信号功率值和所述服务小区的第 二上行参考信号功率值；
根据所述第一上行参考信号功率值和所述第二上行参考信号功 率值确定第一协作基站；
在所述第一协作基站包括所述相邻小区的所属基站时， 确定所述 UE为 C oMP用户。
2、 根据权利要求 1所述的方法， 其特征在于， 所述方法还包括： 在获取到所述第一下行参考信号功率值时， 所述基站获取所述 UE 的 服务小区的第二下行参考信号功率值；
根据所述第一下行参考信号功率值和所述第二下行参考信号功 率值确定第二协作基站；
在所述第二协作基站包括所述相邻小区的所属基站时， 确定所述 UE为 C oMP用户。
3、 根据权利要求 1 或 2 所述的方法， 其特征在于， 所述根据所 述第一上行参考信号功率值和所述第二上行参考信号功率值确定第 一协作基站包括：
通过所述第一上行参考信号功率值与所述第二上行参考信号功 率值的差值得到所述 UE至所述服务小区的第二上行路损值与所述 UE 至所述相邻小区的第一上行路损值的差值；
根据所述第二上行路损值与所述第一上行路损值的差值确定所 述第一协作基站。
4、 根据权利要求 3 所述的方法， 其特征在于， 所述根据所述第 二上行路损值与所述第一上行路损值的差值确定所述第一协作基站 包括： 在所述第二上行路损值与所述第一上行路损值的差值大于或等 于预设阔值时， 确定所述相邻小区的所属基站为第一协作基站。
5、 根据权利要求 1 至 4任一项所述的方法， 其特征在于， 在所 述获取所述 UE的相邻小区的第一上行参考信号功率值和所述 UE的服 务小区的第二上行参考信号功率值前， 所述方法还包括：
接收上行参考信号；
所述获取所述 UE 的相邻小区的第一上行参考信号功率值和所述 UE的服务小区的第二上行参考信号功率值包括：
在所述服务小区测量所述 UE 的上行参考信号的接收功率， 得到 所述第二上行参考信号功率值， 并获取所述相邻小区的所属基站通过 在所述相邻小区测量所述 UE 的上行参考信号的接收功率， 得到的所 述第一上行参考信号功率值。
6、 根据权利要求 5 所述的方法， 其特征在于， 在所述接收所述 上行参考信号前， 所述方法还包括：
根据所述 UE 与相邻小区的所属基站的距离信息确定待测量的相 邻小区。
7、 一种基站， 其特征在于， 包括：
确定单元， 用于确定是否获取到 UE 的服务小区的相邻小区的第 一下行参考信号功率值；
获取单元， 用于在所述确定单元确定未获取到所述第一下行参考 信号功率值时， 获取所述 UE 的服务小区的相邻小区的第一上行参考 信号功率值和所述服务小区的第二上行参考信号功率值；
处理单元， 用于根据所述获取单元获取的第一上行参考信号功率 值和所述第二上行参考信号功率值确定第一协作基站， 并在所述第一 协作基站包括所述相邻小区的所属基站时，确定所述 UE为 C oMP用户。
8、 根据权利要求 7 所述的基站， 其特征在于， 所述获取单元还 用于， 在所述确定单元确定获取到所述 UE 的相邻小区的第一下行参 考信号功率值时， 获取所述 UE 的服务小区的第二下行参考信号功率 值； 所述处理单元还用于， 根据所述获取单元获取的第一下行参考信 号功率值和所述第二下行参考信号功率值确定第二协作基站， 并在所 述第二协作基站包括所述相邻小区的所属基站时， 确定所述 UE 为 C oMP用户。
9、 根据权利要求 7或 8 所述的基站， 其特征在于， 所述处理单 元具体用于， 通过所述第一上行参考信号功率值与所述第二上行参考 信号功率值的差值得到所述 UE 至所述服务小区的第二上行路损值与 所述 UE至所述相邻小区的第一上行路损值的差值；
根据所述第二上行路损值与所述第一上行路损值的差值确定所 述第一协作基站。
1 0、 根据权利要求 9所述的基站， 其特征在于， 所述处理单元具 体用于， 在所述第二上行路损值与所述第一上行路损值的差值大于或 等于预设阔值时， 确定所述相邻小区的所属基站为第一协作基站。
1 1、 根据权利要求 7 至 1 0任一项所述的基站， 其特征在于， 所 述基站还包括： 接收单元， 用于在获取所述 UE 的相邻小区的第一上 行参考信号功率值和所述服务小区的第二上行参考信号功率值前，接 收上行参考信号；
所述处理单元具体用于， 在所述服务小区测量所述 UE 的上行参 考信号的接收功率， 得到所述第二上行参考信号功率值， 并获取所述 相邻小区的所属基站通过在所述相邻小区测量所述 UE 的上行参考信 号的接收功率， 得到的所述第一上行参考信号功率值。
1 2、 根据权利要求 1 1 所述的基站， 其特征在于， 所述确定单元 还用于， 在所述接收单元接收所述上行参考信号前， 根据所述 UE 与 相邻小区的所属基站的距离信息确定待测量的相邻小区。
1 3、 一种基站， 其特征在于， 包括： 处理器和存储器， 所述存储 器存储计算机执行指令， 所述处理器与所述存储器通过通信总线连 接；
当所述基站运行时， 所述处理器执行所述存储器存储的所述计算 机执行指令， 用于确定是否获取到 UE 的服务小区的相邻小区的第一 下行参考信号功率值， 在确定未获取到所述第一下行参考信号功率值 时， 获取所述 UE 的服务小区的相邻小区的第一上行参考信号功率值 和所述服务小区的第二上行参考信号功率值， 并根据获取的第一上行 参考信号功率值和所述第二上行参考信号功率值确定第一协作基站， 并在所述第一协作基站包括所述相邻小区的所属基站时， 确定所述 UE为 C oMP用户。
1 4、 根据权利要求 1 3 所述的基站， 其特征在于， 所述处理器具 体用于， 在确定获取到所述 UE 的相邻小区的第一下行参考信号功率 值时， 获取所述 UE 的服务小区的第二下行参考信号功率值， 并根据 所述第一下行参考信号功率值和所述第二下行参考信号功率值确定 第二协作基站， 并在所述第二协作基站包括所述相邻小区的所属基站 时， 确定所述 UE为 C oMP用户。
1 5、 根据权利要求 1 3或 1 4所述的基站， 其特征在于， 所述处理 器具体用于， 通过所述第一上行参考信号功率值与所述第二上行参考 信号功率值的差值得到所述 UE 至所述服务小区的第二上行路损值与 所述 UE 至所述相邻小区的第一上行路损值的差值， 并根据所述第二 上行路损值与所述第一上行路损值的差值确定所述第一协作基站。
1 6、 根据权利要求 1 5 所述的基站， 其特征在于， 所述处理器具 体用于， 在所述第二上行路损值与所述第一上行路损值的差值大于或 等于预设阔值时， 确定所述相邻小区的所属基站为第一协作基站。
1 7、 根据权利要求 1 3至 1 6任一项所述的基站， 其特征在于， 所 述基站还包括： 收发器， 所述收发器与所述处理器通过所述通信总线 相连， 所述收发器用于， 在获取所述 UE 的相邻小区的第一上行参考 信号功率值和所述服务小区的第二上行参考信号功率值前，接收上行 参考信号；
所述处理器具体用于， 在所述服务小区测量所述收发器接收的所 述 UE 的上行参考信号的接收功率， 得到所述第二上行参考信号功率 值， 并获取所述相邻小区的所属基站通过在所述相邻小区测量所述 UE 的上行参考信号的接收功率， 得到的所述第一上行参考信号功率 值。
1 8、 根据权利要求 1 7 所述的基站， 其特征在于， 所述处理器还 用于， 在所述收发器接收所述上行参考信号前， 根据所述 UE 与相邻 小区的所属基站的距离信息确定待测量的相邻小区。
1 9、 一种计算机可读介质， 其特征在于， 包含计算机执行指令， 当计算机的中央处理器执行所述计算机执行指令时， 所述计算机执行 权利要求 1至 6任一所述的方法。
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