WO2017148166A1 - 基于射频拉远单元小区合并的导频配置方法及装置 - Google Patents

基于射频拉远单元小区合并的导频配置方法及装置 Download PDF

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Publication number
WO2017148166A1
WO2017148166A1 PCT/CN2016/103501 CN2016103501W WO2017148166A1 WO 2017148166 A1 WO2017148166 A1 WO 2017148166A1 CN 2016103501 W CN2016103501 W CN 2016103501W WO 2017148166 A1 WO2017148166 A1 WO 2017148166A1
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WIPO (PCT)
Prior art keywords
pilot
indoor
radio remote
coverage system
indoor coverage
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PCT/CN2016/103501
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English (en)
French (fr)
Inventor
詹建明
张增杰
罗连洪
霍燚
余擎旗
苑伟涛
蒲迎春
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中兴通讯股份有限公司
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Publication of WO2017148166A1 publication Critical patent/WO2017148166A1/zh

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    • 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
    • H04W16/18—Network planning tools
    • H04W16/20—Network planning tools for indoor coverage or short range network deployment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
    • H04W52/283—Power depending on the position of the mobile
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/32—TPC of broadcast or control channels
    • H04W52/325—Power control of control or pilot channels
    • 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
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
    • H04W52/343—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading taking into account loading or congestion level
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H04W88/085—Access point devices with remote components

Definitions

  • the present disclosure relates to the field of communications technologies, for example, to a pilot configuration method and apparatus based on radio cell remote unit cell merging.
  • RRU Radio remote unit
  • UMTS Universal Mobile Telecommunications System
  • CDMA Code Division Multiple Access
  • LTE Long Term Evolution
  • RRU Multiple low-power radio remote unit
  • PicoRRU Pico-Radio Remote Unit
  • Mico-Radio Remote Unit MicoRRU
  • Metro-Radio Remote Unit MetroRRU
  • the embodiment of the present disclosure provides a pilot configuration method based on cell merging of a radio remote unit, which can ensure all indoor users in the indoor coverage system without increasing the number of low-power radio remote units in the indoor coverage system. Can enjoy indoor wireless services and enhance the business experience of indoor users.
  • a pilot configuration method based on cell combination of radio remote unit includes:
  • the indoor coverage system includes M radio remote units using the same scrambling code and the same pilot transmission power. M is greater than or equal to 2;
  • the pilot transmit power of the radio frequency remote unit pilot channel in the M radio remote units is enhanced to enable the specific indoor user to access the indoor coverage system.
  • the enhancing the pilot transmit power of the pilot channel of the radio remote unit in the M radio remote units includes:
  • N radio remote units adjacent to the specific indoor user where N is greater than or equal to 1 and less than M;
  • the pilot transmit powers of the queried N radio remote unit pilot channels are respectively enhanced.
  • the indoor coverage system is a universal mobile communication system UMTS, a code division multiple access CDMA system or a long term evolution LTE system.
  • the pilot transmit power of the N radio remote unit pilot channels that are respectively queried is enhanced, including:
  • the pilot transmit power of the N common radio remote unit primary common pilot channels is respectively enhanced.
  • the pilot transmission powers of the N radio remote unit pilot channels that are respectively queried are enhanced, including:
  • the pilot transmit powers of the N radio remote unit common channels and the downlink traffic channel are respectively enhanced.
  • the embodiment of the present disclosure further provides a pilot configuration apparatus based on radio cell integration unit cell merging, including:
  • the detecting module is configured to detect whether there is a specific indoor user that cannot access the indoor coverage system in the indoor area to which the indoor coverage system belongs, where the indoor coverage system includes M pieces using the same scrambling code and the same pilot transmission power Radio remote unit, M is greater than or equal to 2;
  • a power enhancement module configured to: when the detecting module detects the specific indoor user, enhance pilot transmission power of a pilot channel of a part of the radio remote unit in the M radio remote units, so that the specific indoor The user can access the indoor coverage system.
  • the power enhancement module includes:
  • Query unit configured to query, in the M radio remote units, the specific indoor user N adjacent radio remote units, N being greater than or equal to 1 and less than M;
  • the power enhancement unit is configured to respectively enhance pilot transmit power of the N radio remote unit pilot channels queried by the query unit.
  • the indoor coverage system is a UMTS, a CDMA system or an LTE system.
  • the power enhancement unit is configured to: when the indoor coverage system is a UMTS or CDMA system, respectively, enhance pilots of the N radio remote unit primary common pilot channels that are queried by the query unit Transmit power.
  • the power enhancement unit is configured to: when the indoor coverage system is an LTE system, respectively enhance pilot transmissions of the N radio remote unit common channels and downlink traffic channels queried by the query unit power.
  • Embodiments of the present disclosure also provide a non-transitory computer readable storage medium storing computer executable instructions arranged to perform the above method.
  • An embodiment of the present disclosure further provides an electronic device, where the electronic device includes:
  • At least one processor At least one processor
  • the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to cause the at least one processor to perform the method described above.
  • the pilot configuration method and device based on radio frequency remote unit cell merging can improve the cell merging technology of multiple low-power radio remote unit, and the indoor area to which the indoor coverage system belongs cannot be accessed.
  • the specific indoor user of the indoor coverage system enhances the pilot transmission power of the pilot channel of the low-power radio remote unit in the indoor coverage system through the background of the indoor baseband unit, thereby enabling specific indoor users who cannot access the indoor coverage system to Access the indoor coverage system to improve the service experience of indoor users, avoid the process of indoor and outdoor service cell change, reduce the soft handover signaling process, save the investment cost of network deployment, avoid the decline of the overall capacity of the cell and increase the indoor mobile phone transmit power.
  • the problem of power consumption is a problem of power consumption.
  • 1 is a schematic diagram of combining multiple PicoRRUs of a related indoor coverage system into one logical cell;
  • FIG. 2 is a schematic diagram of solving the problem that an indoor user cannot access an indoor coverage system by increasing the number of PicoRRUs in the related art
  • FIG. 3 is a flowchart of a first embodiment of a pilot configuration method based on radio cell remote unit cell combining provided by the present disclosure
  • FIG. 4 is a flowchart of a second embodiment of a pilot configuration method based on radio cell remote unit cell combining provided by the present disclosure
  • FIG. 5 is a schematic diagram of the solution provided by the present disclosure for solving an inability of an indoor user to access an indoor coverage system
  • FIG. 6 is a structural block diagram of an embodiment of a pilot configuration apparatus based on radio cell remote unit cell combining provided by the present disclosure
  • FIG. 7 is a structural block diagram of an embodiment of the power enhancement module of FIG. 6;
  • FIG. 8 is a schematic diagram of a hardware structure of an electronic device provided by the present disclosure.
  • the indoor coverage system adopts multiple low-power radio remote unit merge technologies, some indoor users cannot enjoy the problem of indoor wireless services.
  • the first solution is to maintain the status quo, because the coverage area of the outdoor macro network is often large, due to the limitation of spectrum resources and wireless capacity, it will not only affect the service experience of indoor users, but also cause the movement between indoor and outdoor cells. Switching is not conducive to reducing the handover signaling process or is not conducive to reducing the handover failure rate.
  • the second solution is as follows: As shown in FIG. 2, by increasing the number of low-power PicoRRUs, the wireless network can cover indoor areas that have not been covered before, so that users who cannot enjoy indoor wireless services can enjoy indoor wireless services. As shown in FIG.
  • the number of original low-power PicoRRUs is 6, which causes indoor users in some indoor areas to enjoy the downlink service of the indoor PicoRRU, and can only access the cell coverage network of the outdoor macro base station. .
  • the indoor area has completely covered the wireless network, so that indoor users who cannot enjoy indoor wireless services in some indoor areas can enjoy the downlink service of the indoor PicoRRU without having to access the outdoor macro.
  • the disadvantage of the second scheme is that since a larger number of RRUs are combined into one cell, the noise floor of the cell is raised, which leads to a decrease in the overall wireless capacity of the cell, and also increases the transmission power and radiation of the mobile phone, so that the mobile phone is used. Shorter time also increases network deployment costs.
  • a plurality of low-power radio remote unit merge technologies are improved, A plurality of low power radio remote units combined into one logical cell adopt a differentiated pilot transmit power configuration.
  • a method flowchart of a first embodiment of a pilot configuration method based on radio cell remote unit cell combining according to the present disclosure includes the following steps.
  • step 310 it is detected whether there is a specific indoor user in the indoor area to which the indoor coverage system belongs.
  • the specific indoor user is an indoor user who is in the indoor area and cannot access the indoor coverage system.
  • the indoor coverage system includes at least two low-power RRUs combined into one logical cell, and the at least two RRUs all use the same scrambling code scrambled transmission and the pilot transmission powers are the same, such as pilot transmission The power is all Pb.
  • the indoor coverage system can be a UMTS, a CDMA system, or an LTE system.
  • the method for detecting whether there is a specific indoor user in the indoor area may be, for example, detecting whether the primary scrambling code of the serving cell to which the user belongs to the indoor area belongs to the primary scrambling code configured by the indoor coverage system, and if the primary scrambling code of the serving cell to which the user belongs does not belong to the indoor coverage system.
  • the configured primary scrambling code determines that the user is a specific indoor user, that is, the user is an indoor user who is not connected to the indoor coverage system.
  • step 320 if a specific indoor user is detected, the pilot transmission power of some RRU pilot channels in all radio remote units (RRUs) in the indoor coverage system is enhanced.
  • the indoor area it is found that some users in the indoor room cannot access the indoor coverage system, and can only access the outdoor macro network, that is, it is determined that a specific indoor user is detected, and may not be processed when a specific indoor user is not detected. Exit the process.
  • the indoor users in some areas in FIG. 1 cannot enjoy the indoor wireless service, so indoor users who cannot enjoy the indoor wireless service can be determined as specific indoor users.
  • the pilot transmit power of part of the RRU pilot channels in all RRUs of the indoor coverage system is increased, that is, the pilot transmit power of a part of the RRU pilot channels in all RRUs is maintained, and the pilot transmit power of the remaining RRU pilot channels is increased.
  • the indoor area detects a specific indoor user who cannot access the indoor coverage system, the user differentiates the partial RRU pilot channel pilot transmission power in the indoor coverage system to ensure that all indoor users in the indoor area are Can be connected to the indoor coverage system.
  • the pilot configuration method in the method flowchart of the second embodiment of the pilot configuration method based on radio cell remote unit cell merging provided by the present disclosure includes the following steps.
  • Step 410 is the same as step 310.
  • step 420 one or more RRUs adjacent to a particular indoor user are queried in all RRUs of the indoor coverage system.
  • the number of RRUs queried adjacent to the specific indoor user is less than the number of all RRUs in the indoor coverage system. Assume that the number of all RRUs in the indoor coverage system is M, and the number of RRUs that are queried adjacent to the specific indoor user is N, then the values of M and N should meet the following requirements: M is greater than or equal to 2, and N is greater than or Equal to 1 and less than M.
  • step 430 the pilot transmit power of the queried one or more RRU pilot channels adjacent to the particular indoor user is enhanced, respectively.
  • the pilot transmit power is separately enhanced for the queried low power RRU.
  • the pilot channel power of the queried low-power RRU point can be configured through the indoor baseband unit (BBU) to increase the pilot transmit power.
  • BBU indoor baseband unit
  • the indoor coverage system may be any one of UMTS, CDMA system or LTE system
  • the pilot transmission power of one or more RRU pilot channels adjacent to a specific indoor user is separately enhanced.
  • the RRU pilot channels in different systems are not identical, there will be a corresponding difference in the processing of this step.
  • the indoor coverage system is a UMTS or CDMA system
  • the pilot channel of the UMTS or CDMA system is a Primary-Common Pilot Channel (P-CPICH)
  • P-CPICH Primary-Common Pilot Channel
  • the pilot transmit power of the primary common pilot channel may be enhanced, for example, the pilot transmit power of the pilot channel is enhanced to Pe, and the Pe is greater than the initial condition. Pilot transmission power Pb.
  • the indoor coverage system is an LTE system, because the pilot channel of the LTE system is a Reference Signal (RS), the step of enhancing the pilot transmit power of the queried one or more RRU pilot channels may be enhanced.
  • the pilot transmit power of the RRU common channel and the downlink traffic channel for example, enhances the pilot transmit power of the common channel and the downlink traffic channel to Pe, and Pe is greater than the pilot transmit power Pb under the initial condition.
  • the indoor coverage system is UMTS, and the PicoRRUs of numbers 1 to 6 are combined into one logical cell.
  • the six PicoRRUs are RRUs that use the same scrambling code and the same pilot transmission power.
  • the specific indoor users in the indoor partial area cannot enjoy the downlink service of the indoor PicoRRU because there is a partial area that is not covered by the wireless network.
  • the configuration process may be:
  • Pe 10mw, so that the wireless network can cover all indoor areas, so that certain indoor users who cannot access the indoor coverage system can also access the indoor coverage system and enjoy the wireless service of the indoor coverage system.
  • the technical solution of the embodiments of the present disclosure can reduce the phenomenon that a certain indoor user cannot enjoy the indoor wireless service, and enable the specific indoor user to enjoy the indoor wireless service without increasing the cost of the network deployment device, and improve the indoor environment.
  • the user's service experience avoids the indoor and outdoor service cell change process, reduces the soft handover signaling process, saves the investment cost of network deployment, and avoids the problem that the overall capacity of the cell decreases and the indoor mobile phone transmit power increases, resulting in more power consumption.
  • FIG. 6 is a structural block diagram of an embodiment of a pilot configuration apparatus based on radio cell remote unit cell merging provided by the present disclosure.
  • the pilot configuration apparatus may be a BBU backend in an indoor coverage system.
  • the pilot configuration device 6 includes a detection module 61 and a power enhancement module 62.
  • the detecting module 61 is configured to detect whether there is a specific indoor user that cannot access the indoor coverage system in the indoor area to which the indoor coverage system belongs; under initial conditions, the indoor coverage system includes at least two combined into one logical cell. A low power RRU, and the at least two RRUs all use the same scrambling code scrambled transmission and the pilot transmission power is the same.
  • the indoor coverage system includes M RRUs using the same scrambling code and the same pilot transmission power, M is greater than or equal to 2; wherein the definition of the specific indoor user has been described above, and the description is not repeated here.
  • the indoor coverage system can be a UMTS, a CDMA system, or an LTE system.
  • the power enhancement module 62 is configured to enhance the pilot transmit power of a portion of the RRU pilot channels of all RRUs of the indoor coverage system when the detection module 61 detects a particular indoor user. For example, the pilot transmit power of a portion of the R RRU pilot channels of the M RRUs is enhanced to enable the particular indoor user to access the indoor coverage system.
  • the pilot configuration apparatus detects the inside of the room by detecting in the indoor area A sub-user cannot access the indoor coverage system and can only access the outdoor macro network, that is, it is determined that a specific indoor user is detected, and may not be processed when a specific indoor user is not detected.
  • the pilot transmit power of a part of the RRU pilot channels in all RRUs of the indoor coverage system is increased, that is, the pilot transmit power of a part of the RRU pilot channels in all RRUs is maintained, and at the same time
  • the manner in which the pilot transmit power of the RRU pilot channel is left is such that all indoor areas cover the wireless network, so that specific indoor users can access the indoor coverage system and enjoy the indoor wireless service.
  • the indoor area detects a specific indoor user who cannot access the indoor coverage system the user differentiates the pilot transmission power of part of the RRU pilot channel in the indoor coverage system to ensure all indoor users in the indoor area. Both can access the indoor coverage system.
  • FIG. 7 is a structural block diagram of an embodiment of the power enhancement module 62 of FIG.
  • the power enhancement module 62 includes a query unit 621 and a power enhancement unit 622.
  • the operation mode may be:
  • the number of RRUs is assumed to be M.
  • the number of RRUs in the indoor coverage system is M.
  • the number of RRUs that are queried adjacent to the specific indoor user is N. Then the values of M and N should meet the following requirements: M is greater than or equal to 2.
  • N is greater than or equal to 1 and less than M;
  • the pilot transmit power of the queried one or more RRU pilot channels adjacent to the particular indoor user is enhanced by the power enhancement unit 622, respectively.
  • the power enhancement unit 622 enhances its pilot transmit power for the low power RRUs queried by the query unit 621, respectively.
  • the indoor coverage system may be any one of UMTS, CDMA system or LTE system, and therefore the pilot transmission power of one or more RRU pilot channels adjacent to a specific indoor user is separately enhanced.
  • the RRU pilot channels in different systems are not identical, there will be a corresponding difference in performing this processing.
  • the power enhancement unit 622 may enhance the pilot transmit power of the queried one or more RRU pilot channels, respectively.
  • the pilot transmit power of the primary common pilot channel is enhanced, for example, the pilot transmit power of the pilot channel is enhanced to Pe, and Pe is greater than the pilot transmit power Pb under the initial conditions.
  • the power enhancement unit 622 In the step of respectively enhancing the pilot transmit power of the queried one or more RRU pilot channels, the pilot transmit power of the RRU common channel and the pilot transmit power of the downlink traffic channel may be enhanced, for example, the common channel guide Both the frequency transmission power and the pilot transmission power of the downlink traffic channel are enhanced to Pe, and Pe is greater than the pilot transmission power Pb under the initial conditions.
  • the pilot configuration device of the embodiment of the present disclosure can enable a certain indoor user to enjoy the indoor wireless service without increasing the cost of the network deployment device, thereby improving the service experience of the indoor user and avoiding indoor and outdoor services.
  • the cell change process reduces the soft handover signaling process, saves the investment cost of the network deployment, and avoids the problem that the overall capacity of the cell decreases and the indoor mobile phone transmit power increases, resulting in more power consumption.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).
  • the present disclosure also provides a non-transitory computer readable storage medium storing computer executable instructions arranged to perform the method of any of the above embodiments.
  • the present disclosure also provides a hardware structure diagram of an electronic device.
  • the electronic device includes:
  • At least one processor 80 which is exemplified by a processor 80 in FIG. 8; and a memory 81, may further include a communication interface 82 and a bus 83.
  • the processor 80, the communication interface 82, and the memory 81 can complete communication with each other through the bus 83.
  • Communication interface 82 can be used for information transmission.
  • Processor 80 can invoke logic instructions in memory 81 to perform the methods of the above-described embodiments.
  • logic instructions in the memory 81 described above may be implemented in the form of a software functional unit and sold or used as a stand-alone product, and may be stored in a computer readable storage medium.
  • the memory 81 is a computer readable storage medium, and can be used to store a software program, a computer executable program, a program, an instruction, or a module corresponding to the method in the embodiment of the present disclosure.
  • the processor 80 performs the function application and the data processing by executing the software program, the instruction or the module stored in the memory 81, that is, the pilot configuration method based on the radio unit remote unit cell merging in the foregoing method embodiment.
  • the memory 81 may include a storage program area and an storage data area, wherein the storage program area may store an operating system, an application required for at least one function; the storage data area may store data created according to use of the terminal device, and the like. Further, the memory 81 may include a high speed random access memory, and may also include a nonvolatile memory.
  • the technical solution of the present disclosure may be embodied in the form of a software product stored in a storage medium, including one or more instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) Performing all or part of the steps of the method of the embodiments of the present disclosure.
  • the foregoing storage medium may be a non-transitory storage medium, including: a U disk, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk, and the like, and may be a temporary storage medium.
  • the pilot configuration method and device based on radio frequency remote unit cell merging provided by the embodiments of the present disclosure enable a specific indoor user who cannot access the indoor coverage system to access the indoor coverage system, improve the service experience of the indoor user, and avoid indoor appearance.
  • the outdoor service cell change process reduces the soft handover signaling process, saves the investment cost of the network deployment, and avoids the problem that the overall capacity of the cell decreases and the indoor mobile phone transmit power increases, resulting in more power consumption.

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Abstract

本公开实施例提出了一种基于射频拉远单元小区合并的导频配置方法及装置。该导频配置方法包括：检测室内覆盖系统所属的室内区域中是否存在无法接入所述室内覆盖系统的特定室内用户，其中，所述室内覆盖系统包括使用相同扰码、相同导频发射功率的M个射频拉远单元，M大于或等于2；若检测到所述特定室内用户，则增强所述M个射频拉远单元中部分射频拉远单元导频信道的导频发射功率，以使所述特定室内用户能够接入所述室内覆盖系统。

Description

基于射频拉远单元小区合并的导频配置方法及装置 技术领域
本公开涉及通信技术领域，例如涉及一种基于射频拉远单元小区合并的导频配置方法及装置。
背景技术
在通用移动通信系统(Universal Mobile Telecommunications System，UMTS)、码分多址(Code Division Multiple Access，CDMA)系统或长期演进(Long Term Evolution，LTE)系统的网络室内覆盖系统中，室内覆盖系统通常采用多个低功率射频拉远单元(Radio Remote Unit，RRU)小区合并技术，如微微射频拉远单元(Pico-Radio Remote Unit，PicoRRU)小区合并技术、微射频拉远单元(Mico-Radio Remote Unit，MicoRRU)小区合并技术、或地铁射频拉远单元(Metro-Radio Remote Unit，MetroRRU)小区合并技术。如图1所示，在采用多个低功率的PicoRRU小区合并技术时，6个PicoRRU扇区合并为一个逻辑小区，编号为1-6，且6个低功率的PicoRRU采用相同的下行扰码加扰，这样可以减少小区间的干扰和切换过程，还可以减少扰码资源的规划工作量。然而在网络规划中，由于建筑物室内墙壁材质的差异，PicoRRU覆盖区域大小往往存在差异，从而导致室内覆盖系统的室内区域中一些室内用户无法享受到无线服务。如图1中室内部分区域内的室内用户则无法享受室内PicoRRU的下行服务，而只能接入到室外的宏基站的小区覆盖网络中。
发明内容
本公开实施例提供了一种基于射频拉远单元小区合并的导频配置方法，在不增加室内覆盖系统中低功率射频拉远单元数量的前提下，能够保证室内覆盖系统中的所有室内用户都能享受到室内无线服务，提升室内用户的业务体验。
一种基于射频拉远单元小区合并的导频配置方法，包括：
检测室内覆盖系统所属的室内区域中是否存在无法接入所述室内覆盖系统的特定室内用户，其中，所述室内覆盖系统包括使用相同扰码、相同导频发射功率的M个射频拉远单元，M大于或等于2；以及
若检测到所述特定室内用户，则增强所述M个射频拉远单元中部分射频拉远单元导频信道的导频发射功率，以使所述特定室内用户能够接入所述室内覆盖系统。
可选地，所述增强所述M个射频拉远单元中部分射频拉远单元导频信道的导频发射功率，包括：
在所述M个射频拉远单元中查询与所述特定室内用户相邻近的N个射频拉远单元，N大于或等于1且小于M；以及
分别增强查询到的所述N个射频拉远单元导频信道的导频发射功率。
可选地，所述室内覆盖系统为通用移动通信系统UMTS、码分多址CDMA系统或长期演进LTE系统。
可选地，当所述室内覆盖系统为UMTS或CDMA系统，则所述分别增强查询到的所述N个射频拉远单元导频信道的导频发射功率，包括：
分别增强查询到的所述N个射频拉远单元主公共导频信道的导频发射功率。
可选地，当所述室内覆盖系统为LTE系统，则所述分别增强查询到的所述N个射频拉远单元导频信道的导频发射功率，包括：
分别增强查询到的所述N个射频拉远单元公共信道和下行业务信道的导频发射功率。
本公开实施例还提供了一种基于射频拉远单元小区合并的导频配置装置，包括：
检测模块，设置为检测室内覆盖系统所属的室内区域中是否存在无法接入所述室内覆盖系统的特定室内用户，其中，所述室内覆盖系统包括使用相同扰码、相同导频发射功率的M个射频拉远单元，M大于或等于2；以及
功率增强模块，设置为在所述检测模块检测到所述特定室内用户时，增强所述M个射频拉远单元中部分射频拉远单元导频信道的导频发射功率，以使所述特定室内用户能够接入所述室内覆盖系统。
可选地，所述功率增强模块包括：
查询单元，设置为在所述M个射频拉远单元中查询与所述特定室内用户相 邻近的N个射频拉远单元，N大于或等于1且小于M；以及
功率增强单元，设置为分别增强所述查询单元查询到的所述N个射频拉远单元导频信道的导频发射功率。
可选地，所述室内覆盖系统为UMTS、CDMA系统或LTE系统。
可选地，所述功率增强单元，设置为当所述室内覆盖系统为UMTS或CDMA系统时，分别增强所述查询单元查询到的所述N个射频拉远单元主公共导频信道的导频发射功率。
可选地，所述功率增强单元，设置为当所述室内覆盖系统为LTE系统时，分别增强所述查询单元查询到的所述N个射频拉远单元公共信道和下行业务信道的导频发射功率。本公开实施例还提供了一种非暂态计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令设置为执行上述方法。
本公开实施例还提供了电子设备，该电子设备包括：
至少一个处理器；以及
与所述至少一个处理器通信连接的存储器；其中，
所述存储器存储有可被所述至少一个处理器执行的指令，所述指令被所述至少一个处理器执行，以使所述至少一个处理器执行上述的方法。
本公开实施例提供的基于射频拉远单元小区合并的导频配置方法及装置，能够对多个低功率射频拉远单元小区合并技术进行改进，在检测室内覆盖系统所属的室内区域存在无法接入该室内覆盖系统的特定室内用户时，通过室内基带单元后台增强该室内覆盖系统中部分低功率射频拉远单元导频信道的导频发射功率，从而使得无法接入室内覆盖系统的特定室内用户能够接入该室内覆盖系统，提升室内用户的业务体验，避免出现室内室外服务小区变更过程，减少软切换信令流程，节省网络部署的投资成本，避免小区整体容量下降和室内手机发射功率增加导致更加耗电的问题。
附图说明
图1是相关室内覆盖系统多个PicoRRU合并为一个逻辑小区的示意图；
图2是相关技术中通过增加PicoRRU数量解决室内用户无法接入室内覆盖系统的示意图；
图3是本公开提供的基于射频拉远单元小区合并的导频配置方法的第一实施例的流程图；
图4是本公开提供的基于射频拉远单元小区合并的导频配置方法的第二实施例的流程图；
图5是本公开提供的解决室内用户无法接入室内覆盖系统的示意图；
图6是本公开提供的基于射频拉远单元小区合并的导频配置装置的实施例的结构框图；
图7是图6中功率增强模块的实施例的结构框图；以及
图8是本公开提供的电子设备的硬件结构示意图。
具体实施方式
以下结合附图及实施例，对本公开进行详细说明。在不冲突的情况下，实施例和实施例中的特征可以相互组合。
针对室内覆盖系统采用多个低功率射频拉远单元小区合并技术情况下部分室内用户无法享受室内无线服务的问题，传统的解决方案有两种。第一种方案是维持现状，因室外宏网络的覆盖区域往往较大，由于频谱资源和无线容量的限制，因此不但会影响到室内用户的业务体验，而且还会引起室内外小区之间的移动切换，不利于降低切换信令流程或不利于降低切换失败率。第二种解决方案是：如图2所示，通过增加低功率的PicoRRU的数量，使得无线网络能够覆盖之前未覆盖的室内区域，从而使得之前无法享受室内无线服务的用户享受到室内无线服务。如图2中所示，原来的低功率的PicoRRU的数量为6，从而导致室内部分区域内的室内用户无法享受室内PicoRRU的下行服务，而只能接入到室外的宏基站的小区覆盖网络中。在将PicoRRU的数量增加两个后，室内区域已经全部覆盖无线网络，从而使得室内部分区域内无法享受室内无线服务的室内用户也能够享受到室内PicoRRU的下行服务，而无须在接入室外的宏网络中。然而，第二种方案的弊端是：由于更多数量的RRU合并为一个小区，使得小区的底噪抬升，进而导致小区的无线整体容量下降，而且还增加手机的发射功率和辐射，使得手机使用时间变短，还增加了网络部署成本。
本公开实施例中，对多个低功率射频拉远单元小区合并技术进行改进，对 合并为一个逻辑小区的多个低功率射频拉远单元采取差异化导频发射功率配置。
请参考图3，本公开提供的基于射频拉远单元小区合并的导频配置方法的第一实施例的方法流程图包括如下步骤。
在步骤310中，检测室内覆盖系统所属的室内区域是否存在特定室内用户。
其中，该特定室内用户为处于室内区域内且无法接入该室内覆盖系统的室内用户。在初始条件下，该室内覆盖系统包括至少两个合并为一个逻辑小区的低功率RRU，且该至少两个RRU全部使用相同的扰码加扰发射且导频发射功率都相同，例如导频发射功率都为Pb。并且，该室内覆盖系统可以是UMTS、CDMA系统或LTE系统。检测室内区域是否存在特定室内用户的方法例如可以是：检测室内区域用户所属服务小区的主扰码是否属于室内覆盖系统配置的主扰码，若用户所属服务小区的主扰码不属于室内覆盖系统配置的主扰码，则确定该用户为特定室内用户，即该用户为未接入该室内覆盖系统的室内用户。
在步骤320中，若检测到特定室内用户，则增强该室内覆盖系统中所有射频拉远单元(Radio Remote Unit，RRU)中部分RRU导频信道的导频发射功率。
在室内区域中，通过检测发现室内部分用户无法接入到室内覆盖系统，只能接入到室外宏网络中，即确定检测到特定室内用户，在未检测到特定室内用户时，可不予处理，退出流程。如图1中部分区域的室内用户无法享受室内的无线服务，因此可将无法享受室内的无线服务的室内用户确定为特定室内用户。此时，增加室内覆盖系统所有RRU中部分RRU导频信道的导频发射功率，即保持所有RRU中一部分RRU导频信道的导频发射功率，同时通过增加余下RRU导频信道的导频发射功率的方式，使得所有的室内区域都覆盖无线网络，使得特定室内用户也能够接入室内覆盖系统中，享受室内无线服务。换句话说，即在室内区域检测到无法接入室内覆盖系统的特定室内用户时，用户差异化室内覆盖系统中部分RRU导频信道导频发射功率的方式，以保证室内区域的所有室内用户都能够接入室内覆盖系统中。
请参考图4，本公开提供的基于射频拉远单元小区合并的导频配置方法的第二实施例的方法流程图中的导频配置方法包括如下步骤。
步骤410与步骤310相同。
在步骤420中，在室内覆盖系统所有RRU中查询与特定室内用户相邻近的一个或多个RRU。
在本步骤中，查询到的与该特定室内用户相邻近的RRU的数量要小于室内覆盖系统所有RRU的数量。假设室内覆盖系统所有RRU的数量为M，查询到的与该特定室内用户相邻近的RRU的数量为N，那么M与N的取值应满足如下要求：M大于或等于2，N大于或等于1且小于M。
在步骤430中，分别增强查询到的与特定室内用户相邻近的一个或多个RRU导频信道的导频发射功率。
在本步骤中，针对查询到的低功率RRU，分别增强其导频发射功率。操作中，可通过室内基带单元(Building Baseband Unit，BBU)后台对查询到的低功率RRU点的导频信道功率进行配置，以增加导频发射功率。
根据前述可知，因室内覆盖系统可以是UMTS、CDMA系统或LTE系统的任意一种，因此在分别增强查询到的与特定室内用户相邻近的一个或多个RRU导频信道的导频发射功率时，因不同系统中RRU导频信道不完全相同，在进行此步骤的处理时也会有相应差别。
可选地，若室内覆盖系统是UMTS或CDMA系统，因UMTS或CDMA系统导频信道是主公共导频信道(Primary-Common Pilot Channel，P-CPICH)，因此在分别增强查询到的一个或多个RRU导频信道的导频发射功率的步骤中，可以是增强主公共导频信道的导频发射功率，例如将其导频信道的导频发射功率增强至Pe，且Pe大于初始条件下的导频发射功率Pb。若室内覆盖系统是LTE系统，因LTE系统导频信道是相关信号(Reference Signal，RS)，因此在分别增强查询到的一个或多个RRU导频信道的导频发射功率的步骤中，可以增强RRU公共信道和下行业务信道的导频发射功率，例如将公共信道和下行业务信道的导频发射功率增强至Pe，且Pe大于初始条件下的导频发射功率Pb。
在图1中，假设室内覆盖系统为UMTS，其中编号1～6的PicoRRU合并为一个逻辑小区，在初始条件下，该6个PicoRRU为使用相同扰码、相同导频发射功率的RRU。在该室内覆盖系统所属的室内区域中，因存在无线网络覆盖不到的部分区域，使得处于室内部分区域内的特定室内用户无法享受室内PicoRRU的下行服务
在检测到特定室内用户之后，如图5所示，本公开实施例通过BBU后台， 对室内覆盖系统所有RRU中与该特定室内用户相邻近的5号PicoRRU和6号PicoRRU导频信号的导频发射功率进行重新配置，配置过程可以是：
保持为1号～4号的PicoRRU的P-CPICH发射功率不变，即都为初始条件下的Pb，例如Pb＝5mw，将5号PicoRRU和6号PicoRRU的主P-CPICH发射功率增强至Pe，例如Pe＝10mw，从而使得无线网络能够覆盖所有室内区域，进而使得原来无法接入室内覆盖系统的特定室内用户也可以接入到室内覆盖系统，享受室内覆盖系统的无线服务。
通过上述描述可知，应用本公开实施例的技术方案，能够减少特定室内用户无法享受室内无线服务的现象，在不增加网络部署设备成本的前提下，使得特定室内用户享受到室内无线服务，提升室内用户的业务体验，避免出现室内室外服务小区变更过程，减少软切换信令流程，节省网络部署的投资成本，避免小区整体容量下降和室内手机发射功率增加导致更加耗电的问题。
上述图1至图5对本发明实施例的导频配置方法进行了详细描述，下面将结合图6至图7，对采用上述导频配置方法的装置进行描述。需要说明的是，关于一些术语的解释，若在前文已经后描述，在描述装置时将不再赘述。图6，是本公开提供的基于射频拉远单元小区合并的导频配置装置的实施例的结构框图，该导频配置装置可以是室内覆盖系统中的BBU后台。可选地，该导频配置装置6包括：检测模块61和功率增强模块62。
其中，检测模块61，设置为检测室内覆盖系统所属的室内区域中是否存在无法接入该室内覆盖系统的特定室内用户；在初始条件下，该室内覆盖系统包括至少两个合并为一个逻辑小区的低功率RRU，且该至少两个RRU全部使用相同的扰码加扰发射且导频发射功率都相同。例如该室内覆盖系统包括使用相同扰码、相同导频发射功率的M个RRU，M大于或等于2；其中，关于特定室内用户的定义在前文已经描述，此处不再重复描述。并且，该室内覆盖系统可以是UMTS、CDMA系统或LTE系统。
功率增强模块62，设置为在检测模块61检测到特定室内用户时，增强该室内覆盖系统所有RRU中部分RRU导频信道的导频发射功率。例如，增强该M个RRU中部分RRU导频信道的导频发射功率，以使该特定室内用户能够接入该室内覆盖系统中。
本公开实施例提供的导频配置装置，在室内区域中，通过检测发现室内部 分用户无法接入到室内覆盖系统，只能接入到室外宏网络中，即确定检测到特定室内用户，在未检测到特定室内用户时，可不予处理。在检测到特定室内用户时，本公开实施中，增加室内覆盖系统所有RRU中部分RRU导频信道的导频发射功率，即保持所有RRU中一部分RRU导频信道的导频发射功率，同时通过增加余下RRU导频信道的导频发射功率的方式，使得所有的室内区域都覆盖无线网络，使得特定室内用户能够接入室内覆盖系统中，享受室内无线服务。换句话说，即在室内区域检测到无法接入室内覆盖系统的特定室内用户时，用户差异化室内覆盖系统中部分RRU导频信道的导频发射功率的方式，以保证室内区域的所有室内用户都能够接入室内覆盖系统中。
可选地，图7是图6中功率增强模块62的实施例的结构框图。功率增强模块62包括：查询单元621和功率增强单元622。
功率增强模块62在检测模块61检测到特定室内用户时，分别增强该M个RRU中部分RRU导频信道的导频发射功率时，运作方式可以是：
通过查询单元621，在室内覆盖系统所有RRU中查询与特定室内用户相邻近的一个或多个RRU，其中，查询到的与该特定室内用户相邻近的RRU的数量要小于室内覆盖系统所有RRU的数量，假设室内覆盖系统所有RRU的数量为M，查询到的与该特定室内用户相邻近的RRU的数量为N，那么M与N的取值应满足如下要求：M大于或等于2，N大于或等于1且小于M；以及
通过功率增强单元622，分别增强查询到的与特定室内用户相邻近的一个或多个RRU导频信道的导频发射功率。功率增强单元622针对查询单元621查询到的低功率RRU，分别增强其导频发射功率。
根据前文描述可知，室内覆盖系统可以是UMTS、CDMA系统或LTE系统的任意一种，因此在分别增强查询到的与特定室内用户相邻近的一个或多个RRU导频信道的导频发射功率时，因不同系统中RRU导频信道不完全相同，在进行此处理时也会有相应差别。
当室内覆盖系统是UMTS或CDMA系统，因UMTS或CDMA系统导频信道是P-CPICH，因此功率增强单元622在分别增强查询到的一个或多个RRU导频信道的导频发射功率时，可以增强主公共导频信道的导频发射功率，例如将导频信道的导频发射功率增强至Pe，且Pe大于初始条件下的导频发射功率Pb。当室内覆盖系统是LTE系统，因LTE系统导频信道是RS，因此功率增强单元 622在分别增强查询到的一个或多个RRU导频信道的导频发射功率的步骤中，可以增强RRU公共信道的导频发射功率和下行业务信道的导频发射功率，例如将公共信道的导频发射功率和下行业务信道的导频发射功率均增强至Pe，且Pe大于初始条件下的导频发射功率Pb。
通过上述描述可知，应用本公开实施例的导频配置装置，能够在不增加网络部署设备成本的前提下，使得特定室内用户享受到室内无线服务，提升室内用户的业务体验，避免出现室内室外服务小区变更过程，减少软切换信令流程，节省网络部署的投资成本，避免小区整体容量下降和室内手机发射功率增加导致更加耗电的问题。
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流程，是可以通过计算机程序来指令相关的硬件来完成，所述的程序可存储于一计算机可读取存储介质中，该程序在执行时，可包括如上述方法的实施例的流程。其中，所述的存储介质可为磁碟、光盘、只读存储记忆体(Read-Only Memory，ROM)或随机存储记忆体(Random Access Memory，RAM)等。
本公开还提供了一种非暂态计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令设置为执行上述任一实施例中的方法。
本公开还提供了一种电子设备的硬件结构示意图。参见图8，该电子设备包括：
至少一个处理器(processor)80，图8中以一个处理器80为例；和存储器(memory)81，还可以包括通信接口(Communications Interface)82和总线83。其中，处理器80、通信接口82、存储器81可以通过总线83完成相互间的通信。通信接口82可以用于信息传输。处理器80可以调用存储器81中的逻辑指令，以执行上述实施例的方法。
此外，上述的存储器81中的逻辑指令可以通过软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。
存储器81作为一种计算机可读存储介质，可用于存储软件程序、计算机可执行程序，如本公开实施例中的方法对应的程序、指令或模块。处理器80通过运行存储在存储器81中的软件程序、指令或模块，从而执行功能应用以及数据处理，即实现上述方法实施例中的基于射频拉远单元小区合并的导频配置方法。
存储器81可包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序；存储数据区可存储根据终端设备的使用所创建的数据等。此外，存储器81可以包括高速随机存取存储器，还可以包括非易失性存储器。
本公开的技术方案可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括一个或多个指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本公开实施例所述方法的全部或部分步骤。而前述的存储介质可以是非暂态存储介质，包括：U盘、移动硬盘、ROM、RAM、磁碟或者光盘等多种可以存储程序代码的介质，也可以是暂态存储介质。
工业实用性
本公开实施例提供的基于射频拉远单元小区合并的导频配置方法及装置，使得无法接入室内覆盖系统的特定室内用户能够接入该室内覆盖系统，提升室内用户的业务体验，避免出现室内室外服务小区变更过程，减少软切换信令流程，节省网络部署的投资成本，避免小区整体容量下降和室内手机发射功率增加导致更加耗电的问题。

Claims (11)

  1. 基于射频拉远单元小区合并的导频配置方法，包括：
    检测室内覆盖系统所属的室内区域中是否存在无法接入所述室内覆盖系统的特定室内用户，其中，所述室内覆盖系统包括使用相同扰码、相同导频发射功率的M个射频拉远单元，M大于或等于2；以及
    若检测到所述特定室内用户，则增强所述M个射频拉远单元中部分射频拉远单元导频信道的导频发射功率，以使所述特定室内用户能够接入所述室内覆盖系统。
  2. 如权利要求1所述的导频配置方法，其中，所述增强所述M个射频拉远单元中部分射频拉远单元导频信道的导频发射功率，包括：
    在所述M个射频拉远单元中查询与所述特定室内用户相邻近的N个射频拉远单元，N大于或等于1且小于M；以及
    分别增强查询到的所述N个射频拉远单元导频信道的导频发射功率。
  3. 如权利要求2所述的导频配置方法，其中，所述室内覆盖系统为通用移动通信系统UMTS系统、码分多址CDMA系统或长期演进LTE系统。
  4. 如权利要求3所述的导频配置方法，其中，当所述室内覆盖系统为UMTS或CDMA系统，则所述分别增强查询到的所述N个射频拉远单元导频信道的导频发射功率，包括：
    分别增强查询到的所述N个射频拉远单元主公共导频信道的导频发射功率。
  5. 如权利要求3所述的导频配置方法，其中，当所述室内覆盖系统为LTE系统，则所述分别增强查询到的所述N个射频拉远单元导频信道的导频发射功率，包括：
    分别增强查询到的所述N个射频拉远单元公共信道和下行业务信道的导频 发射功率。
  6. 基于射频拉远单元小区合并的导频配置装置，包括：
    检测模块，设置为检测室内覆盖系统所属的室内区域中是否存在无法接入所述室内覆盖系统的特定室内用户，其中，所述室内覆盖系统包括使用相同扰码、相同导频发射功率的M个射频拉远单元，M大于或等于2；以及
    功率增强模块，设置为在所述检测模块检测到所述特定室内用户时，增强所述M个射频拉远单元中部分射频拉远单元导频信道的导频发射功率，以使所述特定室内用户能够接入所述室内覆盖系统。
  7. 如权利要求6所述的导频配置装置，其中，所述功率增强模块包括：
    查询单元，设置为在所述M个射频拉远单元中查询与所述特定室内用户相邻近的N个射频拉远单元，N大于或等于1且小于M；以及
    功率增强单元，设置为分别增强所述查询单元查询到的所述N个射频拉远单元导频信道的导频发射功率。
  8. 如权利要求7所述的导频配置装置，其中，所述室内覆盖系统为UMTS、CDMA系统或LTE系统。
  9. 如权利要求8所述的导频配置装置，其中，所述功率增强单元，设置为当所述室内覆盖系统为UMTS或CDMA系统时，分别增强所述查询单元查询到的所述N个射频拉远单元主公共导频信道的导频发射功率。
  10. 如权利要求8所述的导频配置装置，其中，所述功率增强单元，设置为当所述室内覆盖系统为LTE系统时，分别增强所述查询单元查询到的所述N个射频拉远单元公共信道和下行业务信道的导频发射功率。
  11. 一种非暂态计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令设置为执行权利要求1-5中任一项的方法。
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