WO2018035858A1 - Method and apparatus for adjusting air interface capacity density - Google Patents

Method and apparatus for adjusting air interface capacity density Download PDF

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Publication number
WO2018035858A1
WO2018035858A1 PCT/CN2016/096959 CN2016096959W WO2018035858A1 WO 2018035858 A1 WO2018035858 A1 WO 2018035858A1 CN 2016096959 W CN2016096959 W CN 2016096959W WO 2018035858 A1 WO2018035858 A1 WO 2018035858A1
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Prior art keywords
physical cell
threshold
baseband branch
baseband
branch
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PCT/CN2016/096959
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French (fr)
Chinese (zh)
Inventor
高翔
肖伟
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华为技术有限公司
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Priority to PCT/CN2016/096959 priority Critical patent/WO2018035858A1/en
Publication of WO2018035858A1 publication Critical patent/WO2018035858A1/en

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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
    • H04W16/24—Cell structures
    • H04W16/26—Cell enhancers or enhancement, e.g. for tunnels, building shadow
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

Definitions

  • the present invention relates to the field of mobile communication technologies, and in particular, to a method and apparatus for adjusting an air interface capacity density.
  • Radio Remote Unit (RRU) multi-site common cell technology refers to processing multiple RRU signals on a baseband as a cell signal. This technology is mainly applied to indoor coverage scenarios. Indoor coverage is a solution for indoor user groups and for improving the mobile communication environment within buildings, and the solution has been widely used. With the rapid development of mobile communication technology, more than 70% of mobile communication traffic occurs indoors, and the demand for indoor coverage to air interface capacity is also increasing.
  • logical cells In general, large indoor coverage is divided into multiple logical cells according to certain division rules (such as traffic and traffic distribution, etc.) and each logical cell is deployed with a fixed air interface capacity. In practical applications, the logical cell often has unbalanced load. When the load of one of the logical cells is overloaded (such as traffic and traffic congestion), the logical cell is called an "overloaded logical cell", and its fixed air interface capacity cannot be satisfied.
  • the access requirement of the user equipment (User Equipment, UE) in the overloaded logical cell reduces the user experience, while other logical cells may have a large amount of free air interface capacity, which causes waste of air interface capacity.
  • User Equipment User Equipment
  • the prior art provides a solution of “automatic combining and splitting of logical cells”, that is, the base station determines the logical cell according to the load state of the logical cell. Merging or splitting, when the logical cell load is overloaded, the overloaded logical cell is split, and the base station adds a cell license (License) for the newly added logical cell. Resources.
  • Embodiments of the present invention disclose a method and apparatus for adjusting an air interface capacity density, which can dynamically adjust an air interface capacity density of a physical cell in a logical cell.
  • embodiments of the present application provide a method of adjusting air volume capacity density.
  • the method includes
  • the first set includes a set of pico-radio remote units pRRU, mapping the first set to a first physical cell, where the first physical cell corresponds to a first baseband branch.
  • the value of the isolation between the pRRUs is smaller than the low isolation threshold, and the value of the isolation between the pRRUs is used to describe the degree of interference between two adjacent pRRUs.
  • determining a user density of the first physical cell if the user density of the first physical cell is greater than the first threshold, adding a baseband branch, and adding the A portion of the pRRU under a baseband branch is included in the new baseband branch.
  • the newly added baseband branch corresponds to a fourth physical cell.
  • determining a user density of the first physical cell if the user density of the first physical cell is less than a second threshold, then the first baseband branch and the second The baseband branches are combined, and the user density of the physical cell corresponding to the second baseband branch is less than the third threshold.
  • a third possible design of the first aspect if the user density corresponding to the combined baseband branch is greater than the first threshold, determining the third baseband branch, The first baseband branch is merged with the third baseband branch.
  • the low isolation threshold is determined, and if the value of the isolation between the pRRUs is less than the low isolation threshold, pRRU Belongs to the first collection.
  • the value of the isolation between the pRRUs may be determined by a channel sounding reference signal (SRS) of the pRRU, and the pRRU acquires an SRS that is sent by the UE to the pRRU.
  • SRS channel sounding reference signal
  • the equivalent RSRP value of the UE is determined according to the actual transmit power of the SRS and the pRRU; and the pRRU is determined according to the highest two of the equivalent RSRP values. Two adjacent pRRUs.
  • embodiments of the present application provide a method of adjusting the density of an air interface.
  • the method includes: determining a user density of a first physical cell, where the first physical cell includes a set of pico-radio remote units pRRU, the first physical cell corresponding to a first baseband branch;
  • the user density of the cell adjusts the air interface capacity density of the first physical cell.
  • the baseband branch is added, and the portion under the first baseband branch is added.
  • the pRRU is included in the new baseband branch.
  • the newly added baseband branch corresponds to a fourth physical cell.
  • the first baseband branch is merged with the second baseband branch
  • the second The user density of the physical cell corresponding to the baseband branch is less than the third threshold. If the user density corresponding to the combined baseband branch is greater than the first threshold, the third baseband branch is determined, and the first baseband branch is merged with the third baseband branch.
  • determining a physical resource block (PRB) utilization rate of the physical cell adjusting according to a user density of the physical cell and a PRB utilization rate of the physical cell The air interface capacity density of the physical cell.
  • PRB physical resource block
  • a baseband branch is added, and the first baseband branch is The partial pRRU is included in the new baseband branch.
  • the newly added baseband branch corresponds to a fourth physical cell.
  • the first baseband branch is merged with the second baseband branch, and the user density of the physical cell corresponding to the second baseband branch is less than the third threshold.
  • the user density corresponding to the combined baseband branch is greater than the A1 threshold, and the PRB utilization is greater than the B1 threshold; determining the third baseband branch, the first baseband branch and The third baseband branch merges.
  • an embodiment of the present invention provides an apparatus, such as a base station, having the function of implementing the behavior of a base station in the actual method.
  • the functions may be implemented by hardware or by corresponding software implemented by hardware.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the structure of the base station includes a processor and a transmitter configured to support the base station to perform the corresponding functions in the above methods.
  • the transmitter is configured to support communication between the base station and the UE, and send information or instructions involved in the foregoing method to the UE.
  • the base station can also include a memory for coupling with the processor that stores the necessary program instructions and data for the base station.
  • an embodiment of the present invention provides a computer storage medium for storing computer software instructions for use by the base station, including a program designed to perform the above aspects.
  • a baseband branch is left in the logical cell, and the baseband branch after the physical cell is merged can be used to configure the baseband branch of the physical cell obtained after the physical cell is split. road.
  • the embodiments of the present invention can dynamically adjust the air interface capacity density of the physical cell according to the actual situation of the physical cell in the logical cell, improve the utilization of the air interface capacity in the logical cell, and do not need to split or merge the logical cell, and do not need to allocate the logical cell.
  • the new cell grant resource reduces the waste of the cell permission resources, and the UE in the logical cell does not need to switch to the new logical cell, which reduces the number of service interruptions of the UE.
  • FIG. 1 is a schematic structural diagram of a network architecture according to an embodiment of the present invention.
  • FIG. 2 is a schematic flow chart of a method for adjusting an air port capacity density according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of an apparatus for adjusting an air port capacity density according to an embodiment of the present invention
  • FIG. 4 is a schematic flow chart of a method for adjusting an air port capacity density according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of improving air interface capacity density of a physical cell according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of another method for improving air interface capacity density of a physical cell according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of reducing air interface capacity density of a physical cell according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of reducing air interface capacity density of a physical cell according to an embodiment of the present invention.
  • the embodiment of the invention discloses a method and a device for adjusting the capacity density of an air interface, which can dynamically adjust the air interface capacity density of the physical cell according to the actual situation of the physical cell in the logical cell, and improve the utilization of the air interface capacity in the logical cell, without
  • the logical cell is split or merged, and the new cell permission resource is not allocated to the logical cell, which reduces the waste of the cell permission resource, and the UE in the logical cell does not need to switch to the new logical cell, thereby reducing the number of service interruptions of the UE.
  • the details are described below separately.
  • FIG. 1 is a schematic structural diagram of a network architecture according to an embodiment of the present invention.
  • the network architecture includes a large indoor coverage, and the large indoor coverage is divided into multiple logical cells, each of which has a global unified cell identity (CI, Cell Identity) and a cell.
  • CI global unified cell identity
  • Relevant attributes such as frequency, bandwidth, physical cell ID, and transmit power
  • the coverage of each logical cell can be single-sided antenna coverage or multi-face antenna coverage.
  • Each of the antenna points in the coverage of the logical cell is a radio frequency combination, that is, the logical cell may be referred to as a single frequency network (SFN) cell.
  • each logical cell may be divided into one or A plurality of physical cells and physical cells in the logical cell may multiplex the air interface capacity in the corresponding logical cell. The larger the coverage of one physical cell is, the smaller the air interface capacity density in the physical cell is, and the smaller the coverage of one physical cell is.
  • each physical cell is composed of a set of pico-radio remote units pRRU
  • a physical cell corresponds to a base-band branch, the baseband branch for the cell within the physical baseband modulation and demodulation of the physical inner cell air interface signal.
  • FIG. 2 is a schematic flow chart of a method for adjusting the capacity density of an air interface according to an embodiment of the present invention. Among them, the method shown in FIG. 2 is applicable to a base station. As shown in FIG. 2, the method for adjusting the air port capacity density may include the following steps:
  • S201 Determine a user density of the first physical cell, where the first physical cell includes a set of pico-radio remote units pRRU, and the first physical cell corresponds to the first baseband branch;
  • one logical cell is divided into one or more physical cells, and each physical cell is composed of a set of pico radio remote units pRRU, one physical cell corresponds to one baseband branch, and the baseband branch is used for physical Baseband modulation and demodulation of the air interface signal in the small area.
  • the air interface capacity density is an air interface capacity per unit area in the physical cell.
  • determining whether there is a physical cell in the logical cell that needs to perform air interface capacity density adjustment may include:
  • the apparatus for adjusting the air interface capacity density may determine whether there is a need to reduce the air interface capacity in the logical cell according to one or more of a user experience satisfaction rate, a flow distribution, a traffic density, and a number of loads of each physical cell.
  • the target physical cell of the density is not limited in the embodiment of the present invention. For example, when the device for adjusting the air interface capacity density determines that the user experience satisfaction rate of a physical cell is less than a preset user experience satisfaction rate threshold (for example, 30%), the device that adjusts the air interface capacity density can determine that the physical cell needs to be improved.
  • the target physical cell of the air interface capacity density when the device for adjusting the air interface capacity density determines that the user experience satisfaction rate of a physical cell is greater than a preset user experience satisfaction rate threshold (eg, 90%), the device that adjusts the air interface capacity density can determine the device A physical cell is a target physical cell that needs to reduce the air interface capacity density.
  • a preset user experience satisfaction rate threshold eg, 90%
  • determining whether there is a target physical cell that needs to perform air interface capacity density adjustment in the logical cell may include:
  • the device for adjusting the air interface capacity density can reduce the air interface capacity density in the physical cell, when the physical flow and the traffic density are large in the physical cell.
  • the device for adjusting the capacity density of the air interface can improve the air interface in the physical cell Capacity density.
  • the air interface capacity density of the physical cell needs to be increased to improve the cell air interface capacity utilization.
  • the first baseband branch corresponding to the first physical cell is merged with the second baseband branch, and the second baseband may be the baseband corresponding to the newly added physical cell, or may be the first The baseband corresponding to the physical cell adjacent to the physical cell.
  • the air interface capacity density of the target physical cell can be increased.
  • the combined baseband corresponds to a user density greater than the first threshold
  • the suitable baseband branch can be re-searched for integration with the first baseband branch, for example, finding a third
  • the third baseband branch when the third baseband branch is combined with the first baseband branch, the user density corresponding to the combined baseband is less than the first threshold, which is considered to be satisfactory.
  • the user density is constantly changing, so the solution can dynamically adjust the air interface capacity density by continuously merging or splitting the baseband branch as the user density changes.
  • the reduced pRRU of the first physical cell may be used to merge into a physical cell that is adjacent to the target physical cell and needs to reduce the air interface capacity density.
  • the apparatus for adjusting the air interface capacity density allocates the downlink signal corresponding to each physical cell to the pRRUs constituting the physical cell to transmit when transmitting the downlink signal.
  • the apparatus for adjusting the air interface capacity density when transmitting the downlink signal, allocates the downlink signal corresponding to the target physical cell to a part of the pRRUs of the pRRUs that constitute the target physical cell, and The downlink signal corresponding to the neighboring physical cell that needs to reduce the air interface capacity density adjacent to the target physical cell is allocated to the pRRU constituting the neighboring physical cell and the remaining pRRUs in the target physical cell to be transmitted to reduce The number of pRRUs in the target physical cell.
  • the physical cell is composed of a set of pRRUs, and the number of pRRUs determines the actual coverage of the physical cell.
  • the number of pRRUs is large, the actual coverage of the physical cells is large.
  • the number of pRRUs is small, the number of pRRUs is small.
  • the actual coverage of the physical cell is relatively small.
  • the number of pRRUs in the target physical cell is reduced, the actual coverage of the target physical cell is reduced to increase the air interface capacity density of the target physical cell, and the reduced pRRUs in the target physical cell can be merged into the physical medium that needs to reduce the air interface capacity density. In the community.
  • the number of reduced pRRUs in the target physical cell is variable, and is determined by the flow of people and the traffic density in the target physical cell.
  • a logical cell is divided into three physical cells, that is, a physical cell A, a physical cell B, and a physical cell C, and each physical cell is composed of six pRRUs, and is adjusted. If the device of the air interface capacity density needs to increase the air interface capacity density of the physical cell A and the human flow and the traffic density in the physical cell B are low, the device for adjusting the air interface capacity density adjusts the air interface capacity density of the target physical cell.
  • FIG. 5 is a schematic structural diagram of improving air interface capacity density of a physical cell according to an embodiment of the present invention. As shown in FIG.
  • the apparatus for adjusting the capacity density of the air interface merges the pRRU4, the pRRU5, and the pRRU6 in the physical cell A into the physical cell B.
  • the number of pRRUs in the physical cell A is reduced, and the actual coverage of the physical cell A is reduced.
  • the air interface capacity density of A is improved, that is, the process of adjusting the air interface capacity density reduces the number of pRRUs in the physical cell A, and the process may be as follows: the downlink signal corresponding to the physical cell A is allocated to the pRRU1-pRRU3 in the original physical cell A for transmission.
  • the downlink signal corresponding to the physical cell B is allocated to the pRRU1-pRRU6 in the original physical cell B and the pRRU4-pRRU6 in the original physical cell A for transmission.
  • the air interface capacity density of the physical cell needs to be reduced to improve the cell air interface capacity utilization:
  • one or more baseband branches may be added, and a corresponding baseband branch is separately configured for each of the at least two physical cells that are split.
  • the baseband branch respectively configured for each physical cell of the at least two physical cells that are split may be a baseband branch of the target physical cell itself and one or more physical cells in the logical cell.
  • the baseband branch that is vacated after the merging may also be a baseband branch that is redistributed to the device for adjusting the capacity of the air interface, and may also be a combination of the above two types, which is not limited in the embodiment of the present invention.
  • the apparatus for adjusting the air interface capacity density splits the target physical cell into at least two physical cells, so that the actual coverage of each physical cell into which the target physical cell is split is reduced, and the target physical cell is split into The air interface capacity density of each physical cell is improved.
  • the number of physical cells into which the target physical cell is split is variable, and is determined by the flow of people and traffic density in the target physical cell.
  • a logical cell is divided into three physical cells, namely, a physical cell A, a physical cell B, and a physical cell C, and each physical cell is composed of six pRRUs, and when the air interface is adjusted.
  • the capacity density device needs to increase the air interface capacity density of the physical cell A
  • the device for adjusting the air interface capacity density adjusts the air interface capacity density of the target physical cell.
  • FIG. 6 is another embodiment disclosed in the embodiment of the present invention.
  • the device for adjusting the air interface capacity density splits the physical cell A into two physical cells, namely, a physical cell A1 and a physical cell A2, and the physical cell A1 is composed of pRRU1, pRRU2, and pRRU3 in the physical cell A, and physical.
  • the cell A2 is composed of pRRU4, pRRU5, and pRRU6 in the physical cell A, that is, the process of adjusting the air interface capacity density to split the physical cell A into two physical cells (physical cell A1 and physical cell A2) may be described as being related to the original physical
  • the downlink signal corresponding to the cell A is allocated to the pRRU1-pRRU3 in the original physical cell A for transmission, or the downlink signal corresponding to the original physical cell A is allocated to the pRRU4-pRRU6 in the original physical cell A for transmission, that is, in the original physical cell A.
  • the pRRU1-pRRU3 is separated from the downlink signal sent by the pRRU4-pRRU6 in the original physical cell A to implement splitting of the original physical cell A.
  • adjusting the air interface capacity density of the target physical cell may include:
  • the number of pRRUs in the target physical cell is increased to reduce the air interface capacity density of the target physical cell.
  • the number of added pRRUs in the target physical cell is variable, and is determined by the flow of people and traffic density in the target physical cell.
  • the target physical cell that needs to reduce the air interface capacity density may merge the pRRU reduced by the physical cell that is adjacent to the target physical cell and needs to increase the air interface capacity density to the target physical cell to increase the pRRU in the target physical cell. quantity.
  • the physical cell B merges the pRRU reduced by the physical cell A to the physical cell B to increase the number of pRRUs of the physical cell B, thereby reducing the air interface capacity density of the physical cell B.
  • adjusting the air interface capacity density of the target physical cell may include:
  • the physical cell adjacent to the target physical cell and required to reduce the air interface capacity density is merged into the target physical cell to reduce the air interface capacity density of the target physical cell.
  • a baseband branch is left in the logical cell, and the baseband branch after the physical cell is merged can be used to configure the baseband branch of the physical cell obtained after the physical cell is split. road.
  • a logical cell is divided into three physical cells, that is, a physical cell A, a physical cell B, and a physical cell C, and each physical cell is composed of six pRRUs, and is adjusted.
  • the device of the air interface capacity density needs to reduce the air interface capacity density of the physical cell A and the physical cell B is a physical cell that needs to reduce the air port capacity density
  • the device for adjusting the air interface capacity density adjusts the air interface capacity density of the target physical cell.
  • FIG. 7 is a schematic structural diagram of reducing the air interface capacity density of a physical cell according to an embodiment of the present invention. As shown in FIG.
  • the device for adjusting the air interface capacity density merges the physical cell B into the physical cell A, so that the pRRU in the physical cell A is increased, thereby reducing the air interface capacity density of the physical cell A, that is, adjusting the air interface capacity.
  • the process of merging the physical cell B into the physical cell A by the device of the density may be described as allocating the downlink signal corresponding to the original physical cell A to the pRRU1-pRRU6 in the original physical cell A and the pRRU1-pRRU6 in the original physical cell B for transmission.
  • the apparatus for adjusting the air interface capacity density first determines whether there is a target physical cell in the logical cell that needs to perform air interface capacity density adjustment, where the logical cell is divided into one or more physical cells, and each physical cell is determined by A set of pico radio remote unit pRRUs and one physical cell corresponding to one baseband branch, when the judgment result is yes, the apparatus for adjusting the air interface capacity density adjusts the air interface capacity density of the target physical cell.
  • the embodiment of the present invention can dynamically adjust the air interface capacity density of the physical cell according to the actual situation of the physical cell in the logical cell, improve the utilization of the air interface capacity in the logical cell, and do not need to split or merge the logical cell, and need not be logical.
  • the cell allocates a new cell grant resource, which reduces the waste of the cell permission resource, and the UE in the logical cell does not need to switch to the new logical cell, thereby reducing the number of service interruptions of the UE.
  • the steps 201 and 202 shown in FIG. 2 are to adjust the air interface capacity density by determining the user density.
  • the embodiment of the present invention can further determine the user density of the physical cell and the PRB utilization rate of the physical cell.
  • the air interface capacity density of the physical cell is reasonably adjusted.
  • determining a physical cell user density determining a physical resource block (PRB) utilization rate of the physical cell; according to the user density of the physical cell and the PRB of the physical cell Utilization rate, adjusting the air interface capacity density of the physical cell.
  • PRB physical resource block
  • the baseband branch is added, and part of the pRRU under the first baseband branch is classified.
  • the new baseband branch is added.
  • the added baseband branch corresponds to the fourth physical cell.
  • the first baseband branch is merged with the second baseband branch, and the second baseband branch corresponds to The user density of the physical cell is less than the third threshold.
  • the user density corresponding to the combined baseband branch is greater than the A1 threshold, and the PRB utilization is greater than the B1 threshold; determining the third baseband branch, the first baseband branch and the third baseband branch merge.
  • the thresholds A1, A2, B1, and B2 are preset thresholds, which can be set according to empirical parameters or field requirements.
  • the values of the thresholds A1 and A2 may be the same or different; the values of the thresholds B1 and B2 may be the same. , can also be different.
  • the embodiment of the invention also discloses a method for adjusting the capacity density of an air interface.
  • the method for adjusting the air interface capacity density by determining the isolation is specifically described below in conjunction with FIG.
  • S401 Determine a first set, where the first set includes a set of pRRUs, a value of isolation between the pRRUs is less than a low isolation threshold, and a value of isolation between the pRRUs is used to describe two phases.
  • Low isolation thresholds can be set based on empirical parameters or actual requirements.
  • the pRRUs are classified into the first set.
  • the value of the isolation can be determined as follows:
  • SRS channel sounding reference signal
  • the pRRU is determined to be two adjacent pRRUs.
  • S402. Map the first set to a first physical cell, where the first physical cell corresponds to a first baseband branch.
  • the set is determined by determining the isolation and the set is mapped to the corresponding physical cell to determine a corresponding baseband branch for the physical cell.
  • the present invention also provides an apparatus 300 for adjusting the capacity density of an air interface, comprising a determination module 301 and an adjustment module 302.
  • the determining module 301 can be used to perform step S201 in the foregoing method embodiment; wherein the adjusting module 301 can be used to perform step S202 in the foregoing method embodiment.
  • the determining module 301 can be used to perform step S201 in the foregoing method embodiment; wherein the adjusting module 301 can be used to perform step S202 in the foregoing method embodiment.
  • FIG. 8 shows a possible structural diagram of a base station involved in the above embodiment.
  • the base station includes a transmitter/receiver 801, a controller/processor 802, a memory 803, and a communication unit 804.
  • the transmitter/receiver 801 is configured to support the base station to transmit and receive information with the UE in the foregoing embodiment, and to support radio communication between the UE and other UEs.
  • the controller/processor 802 performs various functions for communicating with the UE.
  • On the uplink the uplink signal from the UE is received via the antenna, coordinated by the receiver 801, and further processed by the controller/processor 802 to recover the service data and signaling information transmitted by the UE.
  • traffic data and signaling messages are processed by controller/processor 802 and mediated by transmitter 801 to generate downlink signals for transmission to the UE via the antenna.
  • the controller/processor 802 also performs the processes involved in the base station of Figures 2 and 4 and/or other processes for the techniques described herein.
  • the memory 1003 is used to store program codes and data of the base station.
  • the communication unit 804 is configured to support the base station to communicate with other network entities.
  • Figure 8 only shows a simplified design of the base station.
  • the base station may include any number of transmitters, receivers, processors, controllers, memories, communication units, etc., and all base stations that can implement the present invention are within the scope of the present invention.
  • the modules in the apparatus of the embodiment of the present invention may be combined, divided, and deleted according to actual needs.
  • the module in the embodiment of the present invention may be implemented by a general-purpose integrated circuit, such as a CPU (Central Processing Unit) or an ASIC (Application Specific Integrated Circuit).
  • a general-purpose integrated circuit such as a CPU (Central Processing Unit) or an ASIC (Application Specific Integrated Circuit).
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

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Abstract

Disclosed are a method and apparatus for adjusting an air interface capacity density. The method comprises: configuring a baseband branch for a corresponding physical cell by means of determining an isolation degree between pRRUs. The embodiments of the present invention also disclose dynamically adjusting an air interface capacity density by means of determining a user density of a physical cell. The implementation of the embodiments of the present invention can dynamically adjust an air interface capacity density of a physical cell according to an actual condition of the physical cell in a logical cell, thereby improving the utilization rate of air interface capacity in the logical cell; in addition, it is unnecessary to split or merge the logical cell, and it is unnecessary to allocate a new cell license resource for the logical cell, thereby reducing the waste of the cell license resource; moreover, it is unnecessary for a UE in the logical cell to switch to a new logical cell, thereby reducing the service interruption times of the UE.

Description

一种调节空口容量密度的方法及装置Method and device for adjusting air port capacity density 技术领域Technical field
本发明涉及移动通信技术领域，具体涉及一种调节空口容量密度的方法及装置。The present invention relates to the field of mobile communication technologies, and in particular, to a method and apparatus for adjusting an air interface capacity density.
背景技术Background technique
射频拉远单元(Radio Remote Unit，RRU)多站点共小区技术是指把多个RRU的信号在基带上当作一个小区信号来处理，该技术主要应用于室内覆盖场景。室内覆盖是针对室内用户群、用于改善建筑物内的移动通信环境的一种方案，且该方案得到了广泛的应用。随着移动通信技术的快速发展，移动通信70％以上的流量发生在室内，且室内覆盖对空口容量的需求也在不断增加。Radio Remote Unit (RRU) multi-site common cell technology refers to processing multiple RRU signals on a baseband as a cell signal. This technology is mainly applied to indoor coverage scenarios. Indoor coverage is a solution for indoor user groups and for improving the mobile communication environment within buildings, and the solution has been widely used. With the rapid development of mobile communication technology, more than 70% of mobile communication traffic occurs indoors, and the demand for indoor coverage to air interface capacity is also increasing.
一般情况下，大型的室内覆盖都会按照一定的划分规则(如话务与人流分布等)被划分成为多个逻辑小区且每个逻辑小区均部署有固定的空口容量。在实际应用中，逻辑小区经常会负载不均衡，当其中一个逻辑小区的负载过载(如人流及话务拥塞)时，该逻辑小区被称为“过载逻辑小区”，其固定的空口容量不能满足过载逻辑小区内用户设备(User Equipment，UE)的接入需求，使得用户体验下降，而其它逻辑小区可能存在大量空闲的空口容量，这造成了空口容量的浪费。In general, large indoor coverage is divided into multiple logical cells according to certain division rules (such as traffic and traffic distribution, etc.) and each logical cell is deployed with a fixed air interface capacity. In practical applications, the logical cell often has unbalanced load. When the load of one of the logical cells is overloaded (such as traffic and traffic congestion), the logical cell is called an "overloaded logical cell", and its fixed air interface capacity cannot be satisfied. The access requirement of the user equipment (User Equipment, UE) in the overloaded logical cell reduces the user experience, while other logical cells may have a large amount of free air interface capacity, which causes waste of air interface capacity.
当前，针对上述过载逻辑小区空口容量不足、其它逻辑小区空口容量空闲的情况，现有技术中提供一种“逻辑小区自动合并与***”的解决方案，即基站根据逻辑小区的负载状态决定逻辑小区的合并或***，当逻辑小区负载过载时，过载逻辑小区进行***，且基站为新增的逻辑小区增加小区许可(License) 资源。但是，由于逻辑小区的负载状态随着时间的变化而变化，而不是一个长时间的持续过程，这造成了小区许可资源的浪费，且当待调整(***或合并)的逻辑小区的覆盖范围内存在处于空口连接状态的UE时，UE需要更换连接到新的逻辑小区中，这造成了UE的空口连接中断(即业务中断)。Currently, in the prior art, for the case where the air interface capacity of the overloaded logical cell is insufficient and the air interface capacity of other logical cells is idle, the prior art provides a solution of “automatic combining and splitting of logical cells”, that is, the base station determines the logical cell according to the load state of the logical cell. Merging or splitting, when the logical cell load is overloaded, the overloaded logical cell is split, and the base station adds a cell license (License) for the newly added logical cell. Resources. However, since the load state of the logical cell changes with time, rather than a long-term continuous process, this causes waste of the cell licensed resources, and the coverage memory of the logical cell to be adjusted (split or merged) When the UE is in the air interface connection state, the UE needs to replace the connection into the new logical cell, which causes the air interface connection interruption of the UE (ie, service interruption).
发明内容Summary of the invention
本发明实施例公开了一种调节空口容量密度的方法及装置，能够动态调节逻辑小区内物理小区的空口容量密度。Embodiments of the present invention disclose a method and apparatus for adjusting an air interface capacity density, which can dynamically adjust an air interface capacity density of a physical cell in a logical cell.
一方面，本申请的实施例提供一种调节空口容量密度的方法。该方法包括In one aspect, embodiments of the present application provide a method of adjusting air volume capacity density. The method includes
确定第一集合，该第一集合中包含一组微微射频拉远单元pRRU，将所述第一集合映射到第一物理小区，所述第一物理小区对应第一基带支路。Determining a first set, the first set includes a set of pico-radio remote units pRRU, mapping the first set to a first physical cell, where the first physical cell corresponds to a first baseband branch.
其中，该pRRU间的隔离度的值小于低隔离度门限值，pRRU间的隔离度的值用于描述两个相邻的pRRU之间的干扰程度。The value of the isolation between the pRRUs is smaller than the low isolation threshold, and the value of the isolation between the pRRUs is used to describe the degree of interference between two adjacent pRRUs.
结合第一方面，在第一种可能的设计中，确定第一物理小区的用户密度，若所述第一物理小区的用户密度大于第一门限；则新增基带支路，并将所述第一基带支路下的部分pRRU归入所述新增基带支路。例如，所述新增的基带支路对应第四物理小区。With reference to the first aspect, in a first possible design, determining a user density of the first physical cell, if the user density of the first physical cell is greater than the first threshold, adding a baseband branch, and adding the A portion of the pRRU under a baseband branch is included in the new baseband branch. For example, the newly added baseband branch corresponds to a fourth physical cell.
结合第一方面，在第二种可能的设计中，确定第一物理小区的用户密度，若所述第一物理小区的用户密度小于第二门限；则将所述第一基带支路与第二基带支路合并，所述第二基带支路对应的物理小区的用户密度小于第三门限。With reference to the first aspect, in a second possible design, determining a user density of the first physical cell, if the user density of the first physical cell is less than a second threshold, then the first baseband branch and the second The baseband branches are combined, and the user density of the physical cell corresponding to the second baseband branch is less than the third threshold.
结合第一方面的第二种可能的设计，在第一方面的第三中可能的设计中，若合并后的基带支路所对应的用户密度大于第一门限，则确定第三基带支路，将所述第一基带支路与所述第三基带支路合并。In combination with the second possible design of the first aspect, in a third possible design of the first aspect, if the user density corresponding to the combined baseband branch is greater than the first threshold, determining the third baseband branch, The first baseband branch is merged with the third baseband branch.
结合前述各种可能的设计，在一种可能的设计中，确定所述低隔离度门限值，若所述pRRU间的隔离度的值小于所述低隔离度门限值，则将所述pRRU 归入第一集合。可通过所述pRRU的信道探测参考信号(sounding reference signal，SRS)，来确定所述pRRU间的隔离度的值，pRRU获取UE上行发送给所述pRRU的SRS。In combination with the foregoing various possible designs, in a possible design, the low isolation threshold is determined, and if the value of the isolation between the pRRUs is less than the low isolation threshold, pRRU Belongs to the first collection. The value of the isolation between the pRRUs may be determined by a channel sounding reference signal (SRS) of the pRRU, and the pRRU acquires an SRS that is sent by the UE to the pRRU.
结合前述各种可能的设计，在一种可能的设计中，根据SRS和pRRU的实际发射功率，确定UE的等效RSRP值；根据所述等效RSRP值中的最高两个值，确定pRRU为相邻的两个pRRU。In combination with the foregoing various possible designs, in one possible design, the equivalent RSRP value of the UE is determined according to the actual transmit power of the SRS and the pRRU; and the pRRU is determined according to the highest two of the equivalent RSRP values. Two adjacent pRRUs.
第二方面，本申请的实施例提供一种调节空口容量密度的方法。该方法包括：确定第一物理小区的用户密度，所述第一物理小区包括一组微微射频拉远单元pRRU，所述第一物理小区对应第一基带支路；根据确定的所述第一物理小区的用户密度，调节所述第一物理小区的空口容量密度。In a second aspect, embodiments of the present application provide a method of adjusting the density of an air interface. The method includes: determining a user density of a first physical cell, where the first physical cell includes a set of pico-radio remote units pRRU, the first physical cell corresponding to a first baseband branch; The user density of the cell adjusts the air interface capacity density of the first physical cell.
结合第二方面，在第一种可能的设计中，若所述确定的第一物理小区的用户密度大于第一门限，则新增基带支路，并将所述第一基带支路下的部分pRRU归入所述新增基带支路。所述新增的基带支路对应第四物理小区。With reference to the second aspect, in a first possible design, if the determined user density of the first physical cell is greater than the first threshold, the baseband branch is added, and the portion under the first baseband branch is added. The pRRU is included in the new baseband branch. The newly added baseband branch corresponds to a fourth physical cell.
结合第二方面，在第二种可能的设计中，若所述确定的物理小区的用户密度小于第二门限，则将所述第一基带支路与第二基带支路合并，所述第二基带支路对应的物理小区的用户密度小于第三门限。若合并后的基带支路所对应的用户密度大于第一门限，则确定第三基带支路，将所述第一基带支路与所述第三基带支路合并。With reference to the second aspect, in a second possible design, if the determined user density of the physical cell is less than the second threshold, the first baseband branch is merged with the second baseband branch, the second The user density of the physical cell corresponding to the baseband branch is less than the third threshold. If the user density corresponding to the combined baseband branch is greater than the first threshold, the third baseband branch is determined, and the first baseband branch is merged with the third baseband branch.
结合第二方面，在一种可能设计中，确定所述物理小区的物理资源块(physical resource block,PRB)利用率；根据所述物理小区的用户密度和所述物理小区的PRB利用率，调节所述物理小区的空口容量密度。With reference to the second aspect, in a possible design, determining a physical resource block (PRB) utilization rate of the physical cell; adjusting according to a user density of the physical cell and a PRB utilization rate of the physical cell The air interface capacity density of the physical cell.
在一种可能设计中，若所述确定的第一物理小区的用户密度大于A1门限，且所述PRB利用率大于B1门限；则新增基带支路，并将所述第一基带支路下的部分pRRU归入所述新增基带支路。所述新增的基带支路对应第四物理小区。In a possible design, if the determined user density of the first physical cell is greater than the A1 threshold, and the PRB utilization is greater than the B1 threshold, a baseband branch is added, and the first baseband branch is The partial pRRU is included in the new baseband branch. The newly added baseband branch corresponds to a fourth physical cell.
在一种可能设计中，若所述确定的物理小区的用户密度小于A2门限，且 所述PRB利用率小于B2门限；则将所述第一基带支路与第二基带支路合并，所述第二基带支路对应的物理小区的用户密度小于第三门限。In a possible design, if the determined physical cell user density is less than the A2 threshold, and The PRB utilization rate is less than the B2 threshold; the first baseband branch is merged with the second baseband branch, and the user density of the physical cell corresponding to the second baseband branch is less than the third threshold.
在一种可能设计中，若合并后的基带支路所对应的用户密度大于A1门限，且所述PRB利用率大于B1门限；则确定第三基带支路，将所述第一基带支路与所述第三基带支路合并。In a possible design, if the user density corresponding to the combined baseband branch is greater than the A1 threshold, and the PRB utilization is greater than the B1 threshold; determining the third baseband branch, the first baseband branch and The third baseband branch merges.
再一方面，本发明实施例提供了一种装置，例如一种基站，该基站具有实现上述方法实际中基站行为的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。In another aspect, an embodiment of the present invention provides an apparatus, such as a base station, having the function of implementing the behavior of a base station in the actual method. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more modules corresponding to the functions described above.
在一个可能的设计中，基站的结构中包括处理器和发射器，所述处理器被配置为支持基站执行上述方法中相应的功能。所述发射器用于支持基站与UE之间的通信，向UE发送上述方法中所涉及的信息或者指令。所述基站还可以包括存储器，所述存储器用于与处理器耦合，其保存基站必要的程序指令和数据。In one possible design, the structure of the base station includes a processor and a transmitter configured to support the base station to perform the corresponding functions in the above methods. The transmitter is configured to support communication between the base station and the UE, and send information or instructions involved in the foregoing method to the UE. The base station can also include a memory for coupling with the processor that stores the necessary program instructions and data for the base station.
再一方面，本发明实施例提供了一种计算机存储介质，用于储存为上述基站所用的计算机软件指令，其包含用于执行上述方面所设计的程序。In still another aspect, an embodiment of the present invention provides a computer storage medium for storing computer software instructions for use by the base station, including a program designed to perform the above aspects.
本发明实施例中，两个物理小区合并之后，逻辑小区内会空余出一条基带支路，且物理小区合并后空余的基带支路可以用于配置为物理小区***后得到的物理小区的基带支路。In the embodiment of the present invention, after the two physical cells are merged, a baseband branch is left in the logical cell, and the baseband branch after the physical cell is merged can be used to configure the baseband branch of the physical cell obtained after the physical cell is split. road.
实施本发明实施例能够根据逻辑小区内物理小区的实际情况动态调节物理小区的空口容量密度，提高了逻辑小区内空口容量的利用率，且无需对逻辑小区进行***或合并，无需为逻辑小区分配新的小区许可资源，减少了小区许可资源的浪费，且逻辑小区内的UE无需切换到新的逻辑小区，减少了UE的业务中断次数。 The embodiments of the present invention can dynamically adjust the air interface capacity density of the physical cell according to the actual situation of the physical cell in the logical cell, improve the utilization of the air interface capacity in the logical cell, and do not need to split or merge the logical cell, and do not need to allocate the logical cell. The new cell grant resource reduces the waste of the cell permission resources, and the UE in the logical cell does not need to switch to the new logical cell, which reduces the number of service interruptions of the UE.
附图说明DRAWINGS
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例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。In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings to be used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.
图1是本发明实施例公开的一种网络架构的结构示意图；1 is a schematic structural diagram of a network architecture according to an embodiment of the present invention;
图2是本发明实施例公开的一种调节空口容量密度的方法的流程示意图；2 is a schematic flow chart of a method for adjusting an air port capacity density according to an embodiment of the present invention;
图3是本发明实施例公开的一种调节空口容量密度的装置的结构示意图；3 is a schematic structural diagram of an apparatus for adjusting an air port capacity density according to an embodiment of the present invention;
图4是本发明实施例公开的一种调节空口容量密度的方法的流程示意图；4 is a schematic flow chart of a method for adjusting an air port capacity density according to an embodiment of the present invention;
图5是本发明实施例公开的一种提高物理小区的空口容量密度的结构示意图；FIG. 5 is a schematic structural diagram of improving air interface capacity density of a physical cell according to an embodiment of the present invention; FIG.
图6是本发明实施例公开的另一种提高物理小区的空口容量密度的结构示意图；6 is a schematic structural diagram of another method for improving air interface capacity density of a physical cell according to an embodiment of the present invention;
图7是本发明实施例公开的一种降低物理小区的空口容量密度的结构示意图；FIG. 7 is a schematic structural diagram of reducing air interface capacity density of a physical cell according to an embodiment of the present invention; FIG.
图8是本发明实施例公开的一种降低物理小区的空口容量密度的结构示意图。FIG. 8 is a schematic structural diagram of reducing air interface capacity density of a physical cell according to an embodiment of the present invention.
具体实施方式detailed description
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。 The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
本发明实施例公开了一种调节空口容量密度的方法及装置，能够根据逻辑小区内物理小区的实际情况动态调节物理小区的空口容量密度，提高了逻辑小区内空口容量的利用率，且无需对逻辑小区进行***或合并，无需为逻辑小区分配新的小区许可资源，减少了小区许可资源的浪费，且逻辑小区内的UE无需切换到新的逻辑小区，减少了UE的业务中断次数。以下分别进行详细说明。The embodiment of the invention discloses a method and a device for adjusting the capacity density of an air interface, which can dynamically adjust the air interface capacity density of the physical cell according to the actual situation of the physical cell in the logical cell, and improve the utilization of the air interface capacity in the logical cell, without The logical cell is split or merged, and the new cell permission resource is not allocated to the logical cell, which reduces the waste of the cell permission resource, and the UE in the logical cell does not need to switch to the new logical cell, thereby reducing the number of service interruptions of the UE. The details are described below separately.
为了更好的理解本发明实施例公开的一种调节空口容量密度的方法及装置，下面先对本发明实施例使用的网络架构进行描述。请参阅图1，图1是本发明实施例公开的一种网络架构的结构示意图。如图1所示，该网络架构包括一个大型的室内覆盖，且该大型的室内覆盖被划分为多个逻辑小区，每个逻辑小区都拥有全球统一的小区标识(CI，Cell Identity)以及小区的相关属性(如频点、带宽、物理小区标识以及发射功率等)且部署有固定的空口容量，每个逻辑小区的覆盖范围可以是单面天线覆盖范围，也可以是多面天线覆盖范围，且每个逻辑小区的覆盖范围内的各个天线点之间是射频合路，即逻辑小区又可称为单频组网(SFN，Single Frequency Network)小区，此外，每个逻辑小区又可以划分为一个或多个物理小区且逻辑小区内的物理小区可以复用对应逻辑小区内的空口容量，一个物理小区的覆盖范围越大，该物理小区内的空口容量密度越小，一个物理小区的覆盖范围越小，该物理小区内的空口容量密度越大，每个物理小区均由一组微微射频拉远单元pRRU组成且一个物理小区对应一个基带支路，物理小区内的基带支路用于该物理小区内空口信号的基带调制与解调。For a better understanding of a method and apparatus for adjusting the air interface capacity density disclosed in the embodiments of the present invention, the network architecture used in the embodiment of the present invention is described below. Please refer to FIG. 1. FIG. 1 is a schematic structural diagram of a network architecture according to an embodiment of the present invention. As shown in FIG. 1 , the network architecture includes a large indoor coverage, and the large indoor coverage is divided into multiple logical cells, each of which has a global unified cell identity (CI, Cell Identity) and a cell. Relevant attributes (such as frequency, bandwidth, physical cell ID, and transmit power) and deployed with fixed air interface capacity. The coverage of each logical cell can be single-sided antenna coverage or multi-face antenna coverage. Each of the antenna points in the coverage of the logical cell is a radio frequency combination, that is, the logical cell may be referred to as a single frequency network (SFN) cell. In addition, each logical cell may be divided into one or A plurality of physical cells and physical cells in the logical cell may multiplex the air interface capacity in the corresponding logical cell. The larger the coverage of one physical cell is, the smaller the air interface capacity density in the physical cell is, and the smaller the coverage of one physical cell is. The greater the air interface capacity density in the physical cell, each physical cell is composed of a set of pico-radio remote units pRRU A physical cell corresponds to a base-band branch, the baseband branch for the cell within the physical baseband modulation and demodulation of the physical inner cell air interface signal.
基于图1所示的网络架构，本发明实施例公开了一种调节空口容量密度的方法。请参阅图2，图2是本发明实施例公开的一种调节空口容量密度的方法的流程示意图。其中，图2所示的方法适用于基站。如图2所示，该调节空口容量密度的方法可以包括以下步骤： Based on the network architecture shown in FIG. 1, the embodiment of the present invention discloses a method for adjusting the capacity density of an air interface. Please refer to FIG. 2. FIG. 2 is a schematic flow chart of a method for adjusting the capacity density of an air interface according to an embodiment of the present invention. Among them, the method shown in FIG. 2 is applicable to a base station. As shown in FIG. 2, the method for adjusting the air port capacity density may include the following steps:
S201、确定第一物理小区的用户密度，所述第一物理小区包括一组微微射频拉远单元pRRU，所述第一物理小区对应第一基带支路；S201. Determine a user density of the first physical cell, where the first physical cell includes a set of pico-radio remote units pRRU, and the first physical cell corresponds to the first baseband branch;
本发明实施例中，一个逻辑小区被划分成为一个或多个物理小区，且每个物理小区由一组微微射频拉远单元pRRU组成，一个物理小区对应一条基带支路，基带支路用于物理小区内空口信号的基带调制与解调。In the embodiment of the present invention, one logical cell is divided into one or more physical cells, and each physical cell is composed of a set of pico radio remote units pRRU, one physical cell corresponds to one baseband branch, and the baseband branch is used for physical Baseband modulation and demodulation of the air interface signal in the small area.
本发明实施例中，空口容量密度为物理小区内单位面积的空口容量。In the embodiment of the present invention, the air interface capacity density is an air interface capacity per unit area in the physical cell.
作为一种可选的实施方式，判断逻辑小区中是否存在需要进行空口容量密度调节的物理小区可以包括：As an optional implementation manner, determining whether there is a physical cell in the logical cell that needs to perform air interface capacity density adjustment may include:
判断逻辑小区中是否存在需要降低空口容量密度的物理小区。It is determined whether there is a physical cell in the logical cell that needs to reduce the air interface capacity density.
本发明实施例中，调节空口容量密度的装置可以根据每个物理小区的用户体验满意率、人流分布及话务密度以及负载个数中的一个或多个判断逻辑小区中是否存在需要降低空口容量密度的目标物理小区，本发明实施例不做限定。例如，当调节空口容量密度的装置判断出某物理小区的用户体验满意率小于预设用户体验满意率阈值(如30％)时，调节空口容量密度的装置即可认定该某物理小区为需要提高空口容量密度的目标物理小区，当调节空口容量密度的装置判断出某物理小区的用户体验满意率大于预设用户体验满意率阈值(如90％)时，调节空口容量密度的装置即可认定该某物理小区为需要降低空口容量密度的目标物理小区。In the embodiment of the present invention, the apparatus for adjusting the air interface capacity density may determine whether there is a need to reduce the air interface capacity in the logical cell according to one or more of a user experience satisfaction rate, a flow distribution, a traffic density, and a number of loads of each physical cell. The target physical cell of the density is not limited in the embodiment of the present invention. For example, when the device for adjusting the air interface capacity density determines that the user experience satisfaction rate of a physical cell is less than a preset user experience satisfaction rate threshold (for example, 30%), the device that adjusts the air interface capacity density can determine that the physical cell needs to be improved. The target physical cell of the air interface capacity density, when the device for adjusting the air interface capacity density determines that the user experience satisfaction rate of a physical cell is greater than a preset user experience satisfaction rate threshold (eg, 90%), the device that adjusts the air interface capacity density can determine the device A physical cell is a target physical cell that needs to reduce the air interface capacity density.
作为另一种可选的实施方式，判断逻辑小区中是否存在需要进行空口容量密度调节的目标物理小区可以包括：As another optional implementation manner, determining whether there is a target physical cell that needs to perform air interface capacity density adjustment in the logical cell may include:
判断逻辑小区中是否存在需要提高空口容量密度的物理小区。It is determined whether there is a physical cell in the logical cell that needs to increase the air interface capacity density.
本发明实施例中，举例来说，当物理小区内人流和话务密度较小时，调节空口容量密度的装置可以降低该物理小区内的空口容量密度，当物理小区内人流和话务密度较大时，调节空口容量密度的装置可以提高该物理小区内的空口 容量密度。In the embodiment of the present invention, for example, when the physical flow and the traffic density in the physical cell are small, the device for adjusting the air interface capacity density can reduce the air interface capacity density in the physical cell, when the physical flow and the traffic density are large in the physical cell. When the device for adjusting the capacity density of the air interface can improve the air interface in the physical cell Capacity density.
S202、根据确定的所述第一物理小区的用户密度，调节所述第一物理小区的空口容量密度。S202. Adjust an air interface capacity density of the first physical cell according to the determined user density of the first physical cell.
作为一种可选的实施方式，确定当物理小区的用户密度小于预设的第一门限值时，需要提高该物理小区的空口容量密度以提高小区空口容量利用率。As an optional implementation manner, when the user density of the physical cell is less than the preset first threshold, the air interface capacity density of the physical cell needs to be increased to improve the cell air interface capacity utilization.
此时，一种可行的方式为，将第一物理小区对应的第一基带支路与第二基带支路合并，第二基带可以为新增的物理小区对应的基带，也可以为该第一物理小区相邻的物理小区对应的基带。In this case, a feasible manner is that the first baseband branch corresponding to the first physical cell is merged with the second baseband branch, and the second baseband may be the baseband corresponding to the newly added physical cell, or may be the first The baseband corresponding to the physical cell adjacent to the physical cell.
通过减少第一物理小区内pRRU的数量，可以提高目标物理小区的空口容量密度。By reducing the number of pRRUs in the first physical cell, the air interface capacity density of the target physical cell can be increased.
当第一基带支路与第二基带支路合并后，合并后的基带对应的用户密度大于第一门限值，可以重新寻找合适的基带支路与第一基带支路合并，例如找到第三基带支路，此时当第三基带支路与第一基带支路合并后，其合并后的基带对应的用户密度小于第一门限值，此时可认为是满足要求的。需要说明的是，用户密度是在不断变化中的，所以本方案也可以随着用户密度的变化，通过不断合并或***基带支路，动态地调整空口容量密度。When the first baseband branch and the second baseband branch are combined, the combined baseband corresponds to a user density greater than the first threshold, and the suitable baseband branch can be re-searched for integration with the first baseband branch, for example, finding a third The baseband branch, when the third baseband branch is combined with the first baseband branch, the user density corresponding to the combined baseband is less than the first threshold, which is considered to be satisfactory. It should be noted that the user density is constantly changing, so the solution can dynamically adjust the air interface capacity density by continuously merging or splitting the baseband branch as the user density changes.
本发明实施例中，第一物理小区减少的pRRU可以用于合并至与目标物理小区相邻的、需要降低空口容量密度的物理小区中。In the embodiment of the present invention, the reduced pRRU of the first physical cell may be used to merge into a physical cell that is adjacent to the target physical cell and needs to reduce the air interface capacity density.
本发明实施例中，在不需要调节空口容量密度的情况下，调节空口容量密度的装置在发送下行信号时将每个物理小区对应的下行信号分配给组成该物理小区的pRRU进行发送。当需要提高目标物理小区的空口容量密度时，调节空口容量密度的装置在发送下行信号时，将目标物理小区对应的下行信号分配给组成该目标物理小区的pRRU的其中一部分pRRU进行发送，并将与目标物理小区相邻的、需要降低空口容量密度的相邻物理小区对应的下行信号分配给组成该相邻物理小区的pRRU以及目标物理小区中的剩余pRRU进行发送，以减少 目标物理小区内pRRU的数量。In the embodiment of the present invention, when the air interface capacity density is not required to be adjusted, the apparatus for adjusting the air interface capacity density allocates the downlink signal corresponding to each physical cell to the pRRUs constituting the physical cell to transmit when transmitting the downlink signal. When it is required to increase the air interface capacity density of the target physical cell, the apparatus for adjusting the air interface capacity density, when transmitting the downlink signal, allocates the downlink signal corresponding to the target physical cell to a part of the pRRUs of the pRRUs that constitute the target physical cell, and The downlink signal corresponding to the neighboring physical cell that needs to reduce the air interface capacity density adjacent to the target physical cell is allocated to the pRRU constituting the neighboring physical cell and the remaining pRRUs in the target physical cell to be transmitted to reduce The number of pRRUs in the target physical cell.
本发明实施例中，由于物理小区由一组pRRU组成，且pRRU的数量决定了物理小区实际的覆盖范围，当pRRU的数量多时，物理小区实际的覆盖范围较大，当pRRU的数量较少时，物理小区实际的覆盖范围相对较小。当减少目标物理小区内pRRU的数量时，该目标物理小区实际的覆盖范围减小，以提高目标物理小区的空口容量密度，且目标物理小区中减少的pRRU可以合并至需要降低空口容量密度的物理小区中。In the embodiment of the present invention, the physical cell is composed of a set of pRRUs, and the number of pRRUs determines the actual coverage of the physical cell. When the number of pRRUs is large, the actual coverage of the physical cells is large. When the number of pRRUs is small, the number of pRRUs is small. The actual coverage of the physical cell is relatively small. When the number of pRRUs in the target physical cell is reduced, the actual coverage of the target physical cell is reduced to increase the air interface capacity density of the target physical cell, and the reduced pRRUs in the target physical cell can be merged into the physical medium that needs to reduce the air interface capacity density. In the community.
本发明实施例中，目标物理小区中减少的pRRU的数量是可变的，且由目标物理小区内的人流及话务密度决定。In the embodiment of the present invention, the number of reduced pRRUs in the target physical cell is variable, and is determined by the flow of people and the traffic density in the target physical cell.
本发明实施例中，举例来说，假设某逻辑小区被划分为3个物理小区，即物理小区A、物理小区B以及物理小区C，且每个物理小区中均由6个pRRU组成，当调节空口容量密度的装置需要提高物理小区A的空口容量密度且物理小区B中的人流及话务密度很低时，调节空口容量密度的装置调节目标物理小区的空口容量密度的结构示意图可以如图5所示，图5是本发明实施例公开的一种提高物理小区的空口容量密度的结构示意图。如图5所示，调节空口容量密度的装置将物理小区A内的pRRU4、pRRU5以及pRRU6合并至物理小区B中，物理小区A内pRRU的数量减少，物理小区A实际的覆盖范围减少，物理小区A的空口容量密度得以提高，即调节空口容量密度的装置减少物理小区A内的pRRU数量的过程可以描述为将物理小区A对应的下行信号分配给原物理小区A内的pRRU1-pRRU3进行发送，将物理小区B对应的下行信号分配给原物理小区B内pRRU1-pRRU6以及原物理小区A内的pRRU4-pRRU6进行发送。In the embodiment of the present invention, for example, a logical cell is divided into three physical cells, that is, a physical cell A, a physical cell B, and a physical cell C, and each physical cell is composed of six pRRUs, and is adjusted. If the device of the air interface capacity density needs to increase the air interface capacity density of the physical cell A and the human flow and the traffic density in the physical cell B are low, the device for adjusting the air interface capacity density adjusts the air interface capacity density of the target physical cell. As shown in FIG. 5, FIG. 5 is a schematic structural diagram of improving air interface capacity density of a physical cell according to an embodiment of the present invention. As shown in FIG. 5, the apparatus for adjusting the capacity density of the air interface merges the pRRU4, the pRRU5, and the pRRU6 in the physical cell A into the physical cell B. The number of pRRUs in the physical cell A is reduced, and the actual coverage of the physical cell A is reduced. The air interface capacity density of A is improved, that is, the process of adjusting the air interface capacity density reduces the number of pRRUs in the physical cell A, and the process may be as follows: the downlink signal corresponding to the physical cell A is allocated to the pRRU1-pRRU3 in the original physical cell A for transmission. The downlink signal corresponding to the physical cell B is allocated to the pRRU1-pRRU6 in the original physical cell B and the pRRU4-pRRU6 in the original physical cell A for transmission.
作为另一种可选的实施方式，确定当物理小区的用户密度大于预设的第一门限值时，需要降低该物理小区的空口容量密度以提高小区空口容量利用率：As another optional implementation manner, when it is determined that the user density of the physical cell is greater than a preset first threshold, the air interface capacity density of the physical cell needs to be reduced to improve the cell air interface capacity utilization:
将第一物理小区***成至少两个物理小区，以提高至少两个物理小区中每个物理小区的空口容量密度； Splitting the first physical cell into at least two physical cells to increase an air interface capacity density of each of the at least two physical cells;
例如可以新增一个或多个基带支路，为被***成的至少两个物理小区中的每个物理小区分别配置对应的基带支路。For example, one or more baseband branches may be added, and a corresponding baseband branch is separately configured for each of the at least two physical cells that are split.
本发明实施例中，为被***成的至少两个物理小区中的每个物理小区分别配置的基带支路可以为目标物理小区本身的基带支路以及逻辑小区内的某一个或多个物理小区合并后空余出的基带支路，也可以为调节空口容量密度的装置重新分配的基带支路，还可以是上述两种的结合，本发明实施例不做限定。In the embodiment of the present invention, the baseband branch respectively configured for each physical cell of the at least two physical cells that are split may be a baseband branch of the target physical cell itself and one or more physical cells in the logical cell. The baseband branch that is vacated after the merging may also be a baseband branch that is redistributed to the device for adjusting the capacity of the air interface, and may also be a combination of the above two types, which is not limited in the embodiment of the present invention.
本发明实施例中，调节空口容量密度的装置将目标物理小区***成至少两个物理小区，使得目标物理小区***成的每个物理小区实际的覆盖范围减小，进而使得目标物理小区***成的每个物理小区的空口容量密度得以提高。In the embodiment of the present invention, the apparatus for adjusting the air interface capacity density splits the target physical cell into at least two physical cells, so that the actual coverage of each physical cell into which the target physical cell is split is reduced, and the target physical cell is split into The air interface capacity density of each physical cell is improved.
本发明实施例中，目标物理小区***成的物理小区的数量是可变的，且由目标物理小区内的人流及话务密度决定。In the embodiment of the present invention, the number of physical cells into which the target physical cell is split is variable, and is determined by the flow of people and traffic density in the target physical cell.
本发明实施例，举例来说，假设某逻辑小区被划分为3个物理小区，即物理小区A、物理小区B以及物理小区C，且每个物理小区中均由6个pRRU组成，当调节空口容量密度的装置需要提高物理小区A的空口容量密度时，调节空口容量密度的装置调节目标物理小区的空口容量密度的结构示意图可以如图6所示，图6是本发明实施例公开的另一种提高物理小区的空口容量密度的结构示意图。如图6所示，调节空口容量密度的装置将物理小区A***成两个物理小区，即物理小区A1及物理小区A2，且物理小区A1由物理小区A中的pRRU1、pRRU2以及pRRU3组成，物理小区A2由物理小区A中的pRRU4、pRRU5以及pRRU6组成，即调节空口容量密度的装置将物理小区A***成两个物理小区(物理小区A1及物理小区A2)的过程可以描述为将与原物理小区A对应的下行信号分配给原物理小区A内的pRRU1-pRRU3进行发送或将原物理小区A对应的下行信号分配给原物理小区A内的pRRU4-pRRU6进行发送，即将原物理小区A内的pRRU1-pRRU3与原物理小区A内的pRRU4-pRRU6发送的下行信号进行分离，以实现原物理小区A的***。 In the embodiment of the present invention, for example, a logical cell is divided into three physical cells, namely, a physical cell A, a physical cell B, and a physical cell C, and each physical cell is composed of six pRRUs, and when the air interface is adjusted. When the capacity density device needs to increase the air interface capacity density of the physical cell A, the device for adjusting the air interface capacity density adjusts the air interface capacity density of the target physical cell. As shown in FIG. 6, FIG. 6 is another embodiment disclosed in the embodiment of the present invention. A schematic diagram of a structure for increasing the air interface capacity density of a physical cell. As shown in FIG. 6, the device for adjusting the air interface capacity density splits the physical cell A into two physical cells, namely, a physical cell A1 and a physical cell A2, and the physical cell A1 is composed of pRRU1, pRRU2, and pRRU3 in the physical cell A, and physical. The cell A2 is composed of pRRU4, pRRU5, and pRRU6 in the physical cell A, that is, the process of adjusting the air interface capacity density to split the physical cell A into two physical cells (physical cell A1 and physical cell A2) may be described as being related to the original physical The downlink signal corresponding to the cell A is allocated to the pRRU1-pRRU3 in the original physical cell A for transmission, or the downlink signal corresponding to the original physical cell A is allocated to the pRRU4-pRRU6 in the original physical cell A for transmission, that is, in the original physical cell A. The pRRU1-pRRU3 is separated from the downlink signal sent by the pRRU4-pRRU6 in the original physical cell A to implement splitting of the original physical cell A.
作为一种可选的实施方式，当逻辑小区中存在需要降低空口容量密度的目标物理小区时，调节目标物理小区的空口容量密度可以包括：As an optional implementation manner, when there is a target physical cell in the logical cell that needs to reduce the air interface capacity density, adjusting the air interface capacity density of the target physical cell may include:
增加目标物理小区内pRRU的数量，以降低目标物理小区的空口容量密度。The number of pRRUs in the target physical cell is increased to reduce the air interface capacity density of the target physical cell.
本发明实施例中，目标物理小区中增加的pRRU的数量是可变的，且由目标物理小区内的人流及话务密度决定。In the embodiment of the present invention, the number of added pRRUs in the target physical cell is variable, and is determined by the flow of people and traffic density in the target physical cell.
本发明实施例中，需要降低空口容量密度的目标物理小区可以将与该目标物理小区相邻且需要提高空口容量密度的物理小区减少的pRRU合并至该目标物理小区以增加该目标物理小区内pRRU的数量。举例来说，如图5中，物理小区B将物理小区A减少的pRRU合并至物理小区B，以增加物理小区B的pRRU的数量，进而使得物理小区B的空口容量密度得以降低。In the embodiment of the present invention, the target physical cell that needs to reduce the air interface capacity density may merge the pRRU reduced by the physical cell that is adjacent to the target physical cell and needs to increase the air interface capacity density to the target physical cell to increase the pRRU in the target physical cell. quantity. For example, as shown in FIG. 5, the physical cell B merges the pRRU reduced by the physical cell A to the physical cell B to increase the number of pRRUs of the physical cell B, thereby reducing the air interface capacity density of the physical cell B.
作为另一种可选的实施方式，当逻辑小区中存在需要降低空口容量密度的目标物理小区时，调节目标物理小区的空口容量密度可以包括：As another optional implementation manner, when there is a target physical cell in the logical cell that needs to reduce the air interface capacity density, adjusting the air interface capacity density of the target physical cell may include:
将与目标物理小区相邻的、需要降低空口容量密度的物理小区合并至目标物理小区，以降低目标物理小区的空口容量密度。The physical cell adjacent to the target physical cell and required to reduce the air interface capacity density is merged into the target physical cell to reduce the air interface capacity density of the target physical cell.
本发明实施例中，两个物理小区合并之后，逻辑小区内会空余出一条基带支路，且物理小区合并后空余的基带支路可以用于配置为物理小区***后得到的物理小区的基带支路。In the embodiment of the present invention, after the two physical cells are merged, a baseband branch is left in the logical cell, and the baseband branch after the physical cell is merged can be used to configure the baseband branch of the physical cell obtained after the physical cell is split. road.
本发明实施例中，举例来说，假设某逻辑小区被划分为3个物理小区，即物理小区A、物理小区B以及物理小区C，且每个物理小区中均由6个pRRU组成，当调节空口容量密度的装置需要降低物理小区A的空口容量密度且物理小区B为需要降低空口容量密度的物理小区时，调节空口容量密度的装置调节目标物理小区的空口容量密度的结构示意图可以如图7所示，图7是本发明实施例公开的一种降低物理小区的空口容量密度的结构示意图。如图7所示，调节空口容量密度的装置将物理小区B合并至物理小区A，使得物理小区A中的pRRU增加，进而使得物理小区A的空口容量密度得以降低，即调节空口容量 密度的装置将物理小区B合并至物理小区A的过程可以描述为将与原物理小区A对应的下行信号分配给原物理小区A中pRRU1-pRRU6以及原物理小区B中的pRRU1-pRRU6进行发送。In the embodiment of the present invention, for example, a logical cell is divided into three physical cells, that is, a physical cell A, a physical cell B, and a physical cell C, and each physical cell is composed of six pRRUs, and is adjusted. If the device of the air interface capacity density needs to reduce the air interface capacity density of the physical cell A and the physical cell B is a physical cell that needs to reduce the air port capacity density, the device for adjusting the air interface capacity density adjusts the air interface capacity density of the target physical cell. As shown in the figure, FIG. 7 is a schematic structural diagram of reducing the air interface capacity density of a physical cell according to an embodiment of the present invention. As shown in FIG. 7, the device for adjusting the air interface capacity density merges the physical cell B into the physical cell A, so that the pRRU in the physical cell A is increased, thereby reducing the air interface capacity density of the physical cell A, that is, adjusting the air interface capacity. The process of merging the physical cell B into the physical cell A by the device of the density may be described as allocating the downlink signal corresponding to the original physical cell A to the pRRU1-pRRU6 in the original physical cell A and the pRRU1-pRRU6 in the original physical cell B for transmission.
本发明实施例中，调节空口容量密度的装置首先判断逻辑小区中是否存在需要进行空口容量密度调节的目标物理小区，其中，逻辑小区被划分成为一个或多个物理小区，每个物理小区均由一组微微射频拉远单元pRRU组成且一个物理小区对应一条基带支路，当判断结果为是时，调节空口容量密度的装置调节目标物理小区的空口容量密度。可见，实施本发明实施例能够根据逻辑小区内物理小区的实际情况动态调节物理小区的空口容量密度，提高了逻辑小区内空口容量的利用率，且无需对逻辑小区进行***或合并，无需为逻辑小区分配新的小区许可资源，减少了小区许可资源的浪费，且逻辑小区内的UE无需切换到新的逻辑小区，减少了UE的业务中断次数。In the embodiment of the present invention, the apparatus for adjusting the air interface capacity density first determines whether there is a target physical cell in the logical cell that needs to perform air interface capacity density adjustment, where the logical cell is divided into one or more physical cells, and each physical cell is determined by A set of pico radio remote unit pRRUs and one physical cell corresponding to one baseband branch, when the judgment result is yes, the apparatus for adjusting the air interface capacity density adjusts the air interface capacity density of the target physical cell. It can be seen that the embodiment of the present invention can dynamically adjust the air interface capacity density of the physical cell according to the actual situation of the physical cell in the logical cell, improve the utilization of the air interface capacity in the logical cell, and do not need to split or merge the logical cell, and need not be logical. The cell allocates a new cell grant resource, which reduces the waste of the cell permission resource, and the UE in the logical cell does not need to switch to the new logical cell, thereby reducing the number of service interruptions of the UE.
图2中所示的步骤201,202是通过判断用户密度来调节空口容量密度，可选的，本发明实施例还可以通过确定物理小区的用户密度和所述物理小区的PRB利用率，能更精确、合理地调节物理小区的空口容量密度。The steps 201 and 202 shown in FIG. 2 are to adjust the air interface capacity density by determining the user density. Optionally, the embodiment of the present invention can further determine the user density of the physical cell and the PRB utilization rate of the physical cell. The air interface capacity density of the physical cell is reasonably adjusted.
具体实现可参考前述方案，在确定物理小区用户密度时，还确定所述物理小区的物理资源块(physical resource block,PRB)利用率；根据所述物理小区的用户密度和所述物理小区的PRB利用率，调节所述物理小区的空口容量密度。For a specific implementation, reference may be made to the foregoing solution, when determining a physical cell user density, determining a physical resource block (PRB) utilization rate of the physical cell; according to the user density of the physical cell and the PRB of the physical cell Utilization rate, adjusting the air interface capacity density of the physical cell.
例如，若所述确定的第一物理小区的用户密度大于A1门限，且所述PRB利用率大于B1门限；则新增基带支路，并将所述第一基带支路下的部分pRRU归入所述新增基带支路。新增的基带支路对应第四物理小区。For example, if the determined user density of the first physical cell is greater than the A1 threshold, and the PRB utilization is greater than the B1 threshold, the baseband branch is added, and part of the pRRU under the first baseband branch is classified. The new baseband branch is added. The added baseband branch corresponds to the fourth physical cell.
若所述确定的物理小区的用户密度小于A2门限，且所述PRB利用率小于B2门限；则将所述第一基带支路与第二基带支路合并，所述第二基带支路对应的物理小区的用户密度小于第三门限。 If the determined user density of the physical cell is less than the A2 threshold, and the PRB utilization rate is less than the B2 threshold; then the first baseband branch is merged with the second baseband branch, and the second baseband branch corresponds to The user density of the physical cell is less than the third threshold.
若合并后的基带支路所对应的用户密度大于A1门限，且所述PRB利用率大于B1门限；则确定第三基带支路，将所述第一基带支路与所述第三基带支路合并。If the user density corresponding to the combined baseband branch is greater than the A1 threshold, and the PRB utilization is greater than the B1 threshold; determining the third baseband branch, the first baseband branch and the third baseband branch merge.
其中，门限A1，A2，B1，B2都是为预设的门限，可根据经验参数，或实地需求进行设置，门限A1，A2的值可以相同，也可以不同；门限B1，B2的值可以相同，也可以不同。The thresholds A1, A2, B1, and B2 are preset thresholds, which can be set according to empirical parameters or field requirements. The values of the thresholds A1 and A2 may be the same or different; the values of the thresholds B1 and B2 may be the same. , can also be different.
本发明实施例还公开了一种调节空口容量密度的方法。该方法通过确定隔离度来调节空口容量密度的方法，下面结合图4所示来具体说明。The embodiment of the invention also discloses a method for adjusting the capacity density of an air interface. The method for adjusting the air interface capacity density by determining the isolation is specifically described below in conjunction with FIG.
S401、确定第一集合，所述第一集合中包含一组pRRU，所述pRRU间的隔离度的值小于低隔离度门限值，所述pRRU间的隔离度的值用于描述两个相邻的pRRU之间的干扰程度；S401. Determine a first set, where the first set includes a set of pRRUs, a value of isolation between the pRRUs is less than a low isolation threshold, and a value of isolation between the pRRUs is used to describe two phases. The degree of interference between adjacent pRRUs;
低隔离度门限值可以根据经验参数，或实际需求进行设定。Low isolation thresholds can be set based on empirical parameters or actual requirements.
若所述pRRU间的隔离度的值小于所述低隔离度门限值，则将所述pRRU归入第一集合。If the value of the isolation between the pRRUs is less than the low isolation threshold, the pRRUs are classified into the first set.
具体可以通过如下方式确定隔离度的值：Specifically, the value of the isolation can be determined as follows:
获取pRRU收到的UE上行发送给所述pRRU的信道探测参考信号(sounding reference signal，SRS)；根据所述SRS，确定所述pRRU间的隔离度的值。Acquiring a channel sounding reference signal (SRS) sent by the UE received by the pRRU to the pRRU, and determining a value of the isolation between the pRRUs according to the SRS.
根据SRS和pRRU的实际发射功率，确定UE的等效RSRP值；Determining an equivalent RSRP value of the UE according to actual transmit power of the SRS and the pRRU;
根据所述等效RSRP值中的最高两个值，确定pRRU为相邻的两个pRRU。Based on the highest two of the equivalent RSRP values, the pRRU is determined to be two adjacent pRRUs.
S402、将所述第一集合映射到第一物理小区，所述第一物理小区对应第一基带支路。S402. Map the first set to a first physical cell, where the first physical cell corresponds to a first baseband branch.
通过确定隔离度来确定集合，并将该集合映射到相对应的物理小区，从而为该物理小区确定相应的基带支路。The set is determined by determining the isolation and the set is mapped to the corresponding physical cell to determine a corresponding baseband branch for the physical cell.
通过上述隔离度来确定基带支路后，可参考前述调节空口容量密度的方式 进行动态调整，此处不再赘述。After determining the baseband branch by the above isolation, reference may be made to the manner of adjusting the capacity density of the air interface. Make dynamic adjustments, which are not described here.
本发明还提供一种调节空口容量密度的装置300，包括判断模块301和调节模块302。其中判断模块301可以用来执行前述方法实施例中的步骤S201；其中调节模块301可以用来执行前述方法实施例中的步骤S202。具体实现方式可参考前述实施例，此处不再赘述。The present invention also provides an apparatus 300 for adjusting the capacity density of an air interface, comprising a determination module 301 and an adjustment module 302. The determining module 301 can be used to perform step S201 in the foregoing method embodiment; wherein the adjusting module 301 can be used to perform step S202 in the foregoing method embodiment. For the specific implementation, refer to the foregoing embodiment, and details are not described herein again.
图8示出了上述实施例中所涉及的基站的一种可能的结构示意图。FIG. 8 shows a possible structural diagram of a base station involved in the above embodiment.
基站包括发射器/接收器801,控制器/处理器802，存储器803以及通信单元804。所述发射器/接收器801用于支持基站与上述实施例中的所述的UE之间收发信息，以及支持所述UE与其他UE之间进行无线电通信。所述控制器/处理器802执行各种用于与UE通信的功能。在上行链路，来自所述UE的上行链路信号经由天线接收，由接收器801进行调解，并进一步由控制器/处理器802进行处理来恢复UE所发送到业务数据和信令信息。在下行链路上，业务数据和信令消息由控制器/处理器802进行处理，并由发射器801进行调解来产生下行链路信号，并经由天线发射给UE。控制器/处理器802还执行图2和图4中涉及基站的处理过程和/或用于本申请所描述的技术的其他过程。存储器1003用于存储基站的程序代码和数据。通信单元804用于支持基站与其他网络实体进行通信。The base station includes a transmitter/receiver 801, a controller/processor 802, a memory 803, and a communication unit 804. The transmitter/receiver 801 is configured to support the base station to transmit and receive information with the UE in the foregoing embodiment, and to support radio communication between the UE and other UEs. The controller/processor 802 performs various functions for communicating with the UE. On the uplink, the uplink signal from the UE is received via the antenna, coordinated by the receiver 801, and further processed by the controller/processor 802 to recover the service data and signaling information transmitted by the UE. On the downlink, traffic data and signaling messages are processed by controller/processor 802 and mediated by transmitter 801 to generate downlink signals for transmission to the UE via the antenna. The controller/processor 802 also performs the processes involved in the base station of Figures 2 and 4 and/or other processes for the techniques described herein. The memory 1003 is used to store program codes and data of the base station. The communication unit 804 is configured to support the base station to communicate with other network entities.
可以理解的是，图8仅仅示出了基站的简化设计。在实际应用中，基站可以包含任意数量的发射器，接收器，处理器，控制器，存储器，通信单元等，而所有可以实现本发明的基站都在本发明的保护范围之内。It will be appreciated that Figure 8 only shows a simplified design of the base station. In practical applications, the base station may include any number of transmitters, receivers, processors, controllers, memories, communication units, etc., and all base stations that can implement the present invention are within the scope of the present invention.
需要说明的是，在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详细描述的部分，可以参见其他实施例的相关描述。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。It should be noted that, in the above embodiments, the descriptions of the various embodiments are different, and the parts that are not described in detail in a certain embodiment may be referred to the related descriptions of other embodiments. Second, the ability It should also be apparent to those skilled in the art that the embodiments described in the specification are a preferred embodiment, and the acts and modules involved are not necessarily required by the present invention.
本发明实施例方法中的步骤可以根据实际需要进行顺序调整、合并和删减。The steps in the method of the embodiment of the present invention may be sequentially adjusted, merged, and deleted according to actual needs.
本发明实施例装置中的模块可以根据实际需要进行合并、划分和删减。The modules in the apparatus of the embodiment of the present invention may be combined, divided, and deleted according to actual needs.
本发明实施例中所述模块，可以通过通用集成电路，例如CPU(Central Processing Unit，中央处理器)，或通过ASIC(Application Specific Integrated Circuit，专用集成电路)来实现。The module in the embodiment of the present invention may be implemented by a general-purpose integrated circuit, such as a CPU (Central Processing Unit) or an ASIC (Application Specific Integrated Circuit).
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计算机可读取存储介质中，该程序在执行时，可包括如上述各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。A person skilled in the art can understand that all or part of the process of implementing the above embodiment method can be completed by a computer program to instruct related hardware, and the program can be stored in a computer readable storage medium. When executed, the flow of an embodiment of the methods as described above may be included. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).
以上对本发明实施例公开的一种调节空口容量密度的方法及装置进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。 The method and device for adjusting the air port capacity density disclosed in the embodiments of the present invention are described in detail. The principles and implementation manners of the present invention are described in the following. The description of the above embodiments is only used to help understanding. The present invention and its core ideas; at the same time, those skilled in the art, according to the idea of the present invention, there are changes in the specific embodiments and application scope. In summary, the contents of this specification should not be construed as Limitations of the invention.

Claims (28)

  1. 一种调节空口容量密度的方法，其特征在于，包括：A method for adjusting an air port capacity density, comprising:
    确定第一集合，所述第一集合中包含一组微微射频拉远单元(pRRU)，所述pRRU间的隔离度的值小于低隔离度门限值，所述pRRU间的隔离度的值用于描述两个相邻的pRRU之间的干扰程度；Determining a first set, where the first set includes a set of pico-radio remote units (pRRUs), the value of the isolation between the pRRUs is less than a low isolation threshold, and the value of the isolation between the pRRUs is Describe the degree of interference between two adjacent pRRUs;
    将所述第一集合映射到第一物理小区，所述第一物理小区对应第一基带支路。Mapping the first set to a first physical cell, where the first physical cell corresponds to a first baseband branch.
  2. 一种调节空口容量密度的方法，其特征在于，包括：A method for adjusting an air port capacity density, comprising:
    确定第一物理小区的用户密度，所述第一物理小区包括一组微微射频拉远单元pRRU，所述第一物理小区对应第一基带支路；Determining a user density of the first physical cell, where the first physical cell includes a set of pico-radio remote units pRRU, and the first physical cell corresponds to the first baseband branch;
    根据确定的所述第一物理小区的用户密度，调节所述第一物理小区的空口容量密度。And adjusting an air interface capacity density of the first physical cell according to the determined user density of the first physical cell.
  3. 根据权利要求1或2所述的方法，其特征在于，Method according to claim 1 or 2, characterized in that
    若所述第一物理小区的用户密度大于A1门限；If the user density of the first physical cell is greater than an A1 threshold;
    则新增基带支路，并将所述第一基带支路下的部分pRRU归入所述新增基带支路。Then, a baseband branch is added, and a part of the pRRU under the first baseband branch is classified into the newly added baseband branch.
  4. 根据权利要求1或2所述的方法，其特征在于，Method according to claim 1 or 2, characterized in that
    若所述第一物理小区的用户密度小于A2门限；If the user density of the first physical cell is less than the A2 threshold;
    则将所述第一基带支路与第二基带支路合并，所述第二基带支路对应的物理小区的用户密度小于A3门限。Then, the first baseband branch is combined with the second baseband branch, and the physical density of the physical cell corresponding to the second baseband branch is less than the A3 threshold.
  5. 根据权利要求4所述的方法，其特征在于，The method of claim 4 wherein:
    若合并后的基带支路所对应的用户密度大于A1门限，则确定第三基带支路，将所述第一基带支路与所述第三基带支路合并。If the user density corresponding to the combined baseband branch is greater than the A1 threshold, the third baseband branch is determined, and the first baseband branch is merged with the third baseband branch.
  6. 根据权利要求3所述的方法，其特征在于，The method of claim 3 wherein:
    所述新增的基带支路对应第四物理小区。 The newly added baseband branch corresponds to a fourth physical cell.
  7. 根据权利要求1，3至6任一项所述的方法，其特征在于，A method according to any one of claims 1, 3 to 6, wherein
    确定所述低隔离度门限值，Determining the low isolation threshold,
    若所述pRRU间的隔离度的值小于所述低隔离度门限值，则将所述pRRU归入第一集合。If the value of the isolation between the pRRUs is less than the low isolation threshold, the pRRUs are classified into the first set.
  8. 根据权利要求7所述的方法，其特征在于，The method of claim 7 wherein:
    获取pRRU收到的UE上行发送给所述pRRU的信道探测参考信号(sounding reference signal，SRS)；Acquiring a channel sounding reference signal (SRS) sent by the UE received by the pRRU to the pRRU;
    根据所述SRS，确定所述pRRU间的隔离度的值。A value of the isolation between the pRRUs is determined according to the SRS.
  9. 根据权利要求8所述的方法，其特征在于，The method of claim 8 wherein:
    根据SRS和pRRU的实际发射功率，确定UE的等效RSRP值；Determining an equivalent RSRP value of the UE according to actual transmit power of the SRS and the pRRU;
    根据所述等效RSRP值中的最高两个值，确定pRRU为相邻的两个pRRU。Based on the highest two of the equivalent RSRP values, the pRRU is determined to be two adjacent pRRUs.
  10. 根据权利要求2所述的方法，其特征在于，还包括：The method of claim 2, further comprising:
    确定所述物理小区的物理资源块(physical resource block,PRB)利用率；Determining a physical resource block (PRB) utilization rate of the physical cell;
    根据所述物理小区的用户密度和所述物理小区的PRB利用率，调节所述物理小区的空口容量密度。Adjusting an air interface capacity density of the physical cell according to a user density of the physical cell and a PRB utilization rate of the physical cell.
  11. 根据权利要求10所述的方法，其特征在于，The method of claim 10 wherein:
    若所述确定的第一物理小区的用户密度大于A1门限，且所述PRB利用率大于B1门限；If the determined user density of the first physical cell is greater than the A1 threshold, and the PRB utilization is greater than the B1 threshold;
    则新增基带支路，并将所述第一基带支路下的部分pRRU归入所述新增基带支路。Then, a baseband branch is added, and a part of the pRRU under the first baseband branch is classified into the newly added baseband branch.
  12. 根据权利要求11所述的方法，其特征在于：The method of claim 11 wherein:
    若所述确定的物理小区的用户密度小于A2门限，且所述PRB利用率小于B2门限；If the determined physical density of the physical cell is less than the A2 threshold, and the PRB utilization is less than the B2 threshold;
    则将所述第一基带支路与第二基带支路合并，所述第二基带支路对应的物 理小区的用户密度小于A3门限。And combining the first baseband branch with the second baseband branch, the second baseband branch corresponding to the object The user density of the cell is less than the A3 threshold.
  13. 根据权利要求12所述的方法，其特征在于，The method of claim 12 wherein:
    若合并后的基带支路所对应的用户密度大于A1门限，且所述PRB利用率大于B1门限；If the user density of the combined baseband branch is greater than the A1 threshold, and the PRB utilization is greater than the B1 threshold;
    则确定第三基带支路，将所述第一基带支路与所述第三基带支路合并。A third baseband branch is then determined, combining the first baseband branch with the third baseband branch.
  14. 根据权利要求13所述的方法，其特征在于，The method of claim 13 wherein:
    所述新增的基带支路对应第四物理小区。The newly added baseband branch corresponds to a fourth physical cell.
  15. 一种调节空口容量密度的装置，其特征在于，包括：A device for adjusting an air port capacity density, comprising:
    确定单元，用于确定第一集合，所述第一集合中包含一组微微射频拉远单元(pRRU)，所述pRRU间的隔离度的值小于低隔离度门限值，所述pRRU间的隔离度的值用于描述两个相邻的pRRU之间的干扰程度；a determining unit, configured to determine a first set, where the first set includes a set of pico-radio remote units (pRRUs), and a value of isolation between the pRRUs is less than a low isolation threshold, between the pRRUs The value of the isolation is used to describe the degree of interference between two adjacent pRRUs;
    调节单元，用于将所述第一集合映射到第一物理小区，所述第一物理小区对应第一基带支路。And a adjusting unit, configured to map the first set to a first physical cell, where the first physical cell corresponds to a first baseband branch.
  16. 一种调节空口容量密度的装置，其特征在于，包括：A device for adjusting an air port capacity density, comprising:
    确定单元，用于确定第一物理小区的用户密度，所述第一物理小区包括一组微微射频拉远单元pRRU，所述第一物理小区对应第一基带支路；a determining unit, configured to determine a user density of the first physical cell, where the first physical cell includes a set of pico-radio remote units pRRU, and the first physical cell corresponds to the first baseband branch;
    调节单元，用于根据确定的所述第一物理小区的用户密度，调节所述第一物理小区的空口容量密度。And a adjusting unit, configured to adjust an air interface capacity density of the first physical cell according to the determined user density of the first physical cell.
  17. 根据权利要求15或16所述的装置，其特征在于，Device according to claim 15 or 16, characterized in that
    所述调节单元，还用于，若所述第一物理小区的用户密度大于A1门限；The adjusting unit is further configured to: if a user density of the first physical cell is greater than an A1 threshold;
    则新增基带支路，并将所述第一基带支路下的部分pRRU归入所述新增基带支路。Then, a baseband branch is added, and a part of the pRRU under the first baseband branch is classified into the newly added baseband branch.
  18. 根据权利要求15或16所述的装置，其特征在于，Device according to claim 15 or 16, characterized in that
    所述调节单元，还用于，若所述第一物理小区的用户密度小于A2门限；The adjusting unit is further configured to: if a user density of the first physical cell is less than an A2 threshold;
    则将所述第一基带支路与第二基带支路合并，所述第二基带支路对应的物 理小区的用户密度小于A3门限。And combining the first baseband branch with the second baseband branch, the second baseband branch corresponding to the object The user density of the cell is less than the A3 threshold.
  19. 根据权利要求18所述的装置，其特征在于，The device of claim 18, wherein
    所述调节单元，还用于，若合并后的基带支路所对应的用户密度大于A1门限，则确定第三基带支路，将所述第一基带支路与所述第三基带支路合并。The adjusting unit is further configured to: if the user density corresponding to the combined baseband branch is greater than the A1 threshold, determine a third baseband branch, and merge the first baseband branch with the third baseband branch .
  20. 根据权利要求17所述的装置，其特征在于，The device of claim 17 wherein:
    所述新增的基带支路对应第四物理小区。The newly added baseband branch corresponds to a fourth physical cell.
  21. 根据权利要求15，17至20任一项所述的装置，其特征在于，A device according to any one of claims 15, 17 to 20, wherein
    所述确定单元，用于确定所述低隔离度门限值，The determining unit is configured to determine the low isolation threshold value,
    所述调节单元，还用于，若所述pRRU间的隔离度的值小于所述低隔离度门限值，则将所述pRRU归入第一集合。The adjusting unit is further configured to classify the pRRU into the first set if the value of the isolation between the pRRUs is less than the low isolation threshold.
  22. 根据权利要求21所述的装置，其特征在于，所述装置还包括获取单元；The device according to claim 21, wherein said device further comprises an acquisition unit;
    所述获取单元，用于获取pRRU收到的UE上行发送给所述pRRU的信道探测参考信号(sounding reference signal，SRS)；The acquiring unit is configured to acquire a channel sounding reference signal (SRS) sent by the UE received by the pRRU to the pRRU;
    所述确定单元，还用于根据所述SRS，确定所述pRRU间的隔离度的值。The determining unit is further configured to determine a value of the isolation between the pRRUs according to the SRS.
  23. 根据权利要求22所述的装置，其特征在于The device of claim 22 wherein
    所述确定单元，用于根据SRS和pRRU的实际发射功率，确定UE的等效RSRP值；The determining unit is configured to determine an equivalent RSRP value of the UE according to an actual transmit power of the SRS and the pRRU;
    所述确定单元，还用于根据所述等效RSRP值中的最高两个值，确定pRRU为相邻的两个pRRU。The determining unit is further configured to determine, according to the highest two of the equivalent RSRP values, that the pRRU is two adjacent pRRUs.
  24. 根据权利要求16所述的装置，其特征在于，还包括：The device according to claim 16, further comprising:
    所述确定单元，还用于确定所述物理小区的物理资源块(physical resource block,PRB)利用率；The determining unit is further configured to determine a physical resource block (PRB) utilization rate of the physical cell;
    所述调节单元，还用于根据所述物理小区的用户密度和所述物理小区的PRB利用率，调节所述物理小区的空口容量密度。 The adjusting unit is further configured to adjust an air interface capacity density of the physical cell according to a user density of the physical cell and a PRB utilization rate of the physical cell.
  25. 根据权利要求24所述的装置，其特征在于，The device according to claim 24, wherein
    所述调节单元，还用于，The adjusting unit is further configured to
    若所述确定的第一物理小区的用户密度大于A1门限，且所述PRB利用率大于B1门限，新增基带支路，并将所述第一基带支路下的部分pRRU归入所述新增基带支路。If the determined user density of the first physical cell is greater than the A1 threshold, and the PRB utilization rate is greater than the B1 threshold, a baseband branch is added, and a part of the pRRU under the first baseband branch is classified into the new Increase base belt branch.
  26. 根据权利要求25所述的装置，其特征在于，The device according to claim 25, wherein
    所述调节单元，还用于，The adjusting unit is further configured to
    若所述确定的物理小区的用户密度小于A2门限，且所述PRB利用率小于B2门限，则将所述第一基带支路与第二基带支路合并，所述第二基带支路对应的物理小区的用户密度小于A3门限。And if the determined user density of the physical cell is less than the A2 threshold, and the PRB utilization rate is less than the B2 threshold, combining the first baseband branch with the second baseband branch, where the second baseband branch corresponds The user density of the physical cell is less than the A3 threshold.
  27. 根据权利要求26所述的装置，其特征在于，The device of claim 26, wherein
    所述调节单元，还用于，The adjusting unit is further configured to
    若合并后的基带支路所对应的用户密度大于A1门限，且所述PRB利用率大于B1门限，确定第三基带支路，将所述第一基带支路与所述第三基带支路合并。If the user density corresponding to the combined baseband branch is greater than the A1 threshold, and the PRB utilization is greater than the B1 threshold, the third baseband branch is determined, and the first baseband branch is merged with the third baseband branch .
  28. 根据权利要求27所述的装置，其特征在于，The device according to claim 27, wherein
    所述新增的基带支路对应第四物理小区。 The newly added baseband branch corresponds to a fourth physical cell.
PCT/CN2016/096959 2016-08-26 2016-08-26 Method and apparatus for adjusting air interface capacity density WO2018035858A1 (en)

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