WO2014056162A1 - 通过分布式天线阵列系统进行通信的方法及阵列系统 - Google Patents

通过分布式天线阵列系统进行通信的方法及阵列系统 Download PDF

Info

Publication number
WO2014056162A1
WO2014056162A1 PCT/CN2012/082720 CN2012082720W WO2014056162A1 WO 2014056162 A1 WO2014056162 A1 WO 2014056162A1 CN 2012082720 W CN2012082720 W CN 2012082720W WO 2014056162 A1 WO2014056162 A1 WO 2014056162A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
user equipment
resource pool
radio frequency
macro station
Prior art date
Application number
PCT/CN2012/082720
Other languages
English (en)
French (fr)
Inventor
马霓
赵建平
杨敬
柳涛
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201280001431.9A priority Critical patent/CN103988445B/zh
Priority to JP2015535948A priority patent/JP6355110B2/ja
Priority to CN201710386303.5A priority patent/CN107135018A/zh
Priority to EP12886186.1A priority patent/EP2897302B1/en
Priority to PCT/CN2012/082720 priority patent/WO2014056162A1/zh
Publication of WO2014056162A1 publication Critical patent/WO2014056162A1/zh
Priority to US14/683,868 priority patent/US9906351B2/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0073—Allocation arrangements that take into account other cell interferences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H04W88/085—Access point devices with remote components

Definitions

  • the present invention relates to the field of wireless communications, and in particular, to a method and an array system for communicating through a distributed antenna array system.
  • the capacity and coverage of the wireless network are improved by deploying several small stations within the coverage of the macro station.
  • the coverage capacity is enhanced by splitting the antenna of the original cell.
  • the distributed antenna system technology it is a network consisting of multiple antennas distributed in a building and dedicated to providing indoor wireless coverage. Each sub-antenna unit needs to be deployed at the far end of the central site, through the optical fiber. connection.
  • the heterogeneous network technology and the distributed antenna system technology in the prior art respectively need to select a small station or a sub-antenna unit in the planning, which makes the engineering implementation more troublesome.
  • a large range of fiber optic connections are required between the small station and the macro station, and a large range of fiber optic connections are required between the central station and each sub-antenna unit, resulting in high engineering costs.
  • the high-order cell splitting technology is related to the number of cells that can be split, and the more cells that can be split, the higher the theoretical capacity, but the splitting of the cell will cause the newly introduced splitting.
  • the interference in the small interval, and thus the increase in the capacity of the wireless network is not significant.
  • Embodiments of the present invention provide a distributed antenna array system and a method for communicating through a distributed antenna array system, which can reduce the deployment cost of the distributed antenna and improve the signal at the same time. Quality and reduce interference, further improving user experience and increasing network capacity.
  • an embodiment of the present invention provides a distributed antenna array system, where the antenna array system includes multiple antenna units, a radio frequency resource pool 12, a baseband resource pool 13, and a controller 14, the multiple antenna units and The radio resource pool 12 is connected to the baseband resource pool 13.
  • the baseband resource pool 13 is also connected to the controller 14, and the multiple antenna units include a macro station antenna 111.
  • the multiple antenna units include a macro station antenna 111.
  • a plurality of auxiliary antennas; the macro station antenna 111 is disposed on the macro station, and the plurality of auxiliary antennas are distributed in a position that can cooperate with an antenna unit within a coverage of the macro station;
  • the controller 14 is configured to determine, according to a signal state of the user equipment in the coverage of the macro station, an antenna unit that provides a service to the user equipment, and determine, according to the transceiver capability of the user equipment, whether the The user equipment performs multiple antenna cooperative transmissions and corresponding transmission modes, and then sends the antenna resource information configured to the user equipment to the baseband resource pool 13, so that the baseband resource pool 13 and the radio frequency resource pool 12 control the configured antenna resource direction.
  • the user equipment provides a communication service;
  • the baseband resource pool 13 and the radio resource pool 12 are configured to control, according to the configured antenna resource information sent by the controller 14, a corresponding antenna unit to provide a communication service to the user equipment.
  • a signal state of the user equipment is a path loss of the user equipment to an antenna unit that covers the user equipment;
  • the signal state of the user equipment is downlink receiving power of the user equipment.
  • the signal state of the user equipment is that the antenna unit receives the received power of the uplink signal sent by the user equipment.
  • the auxiliary antenna is a contour antenna or an antenna with a large downtilt at the proximal end.
  • the auxiliary antenna is a single-row or dual-column polarized antenna.
  • the radio resource pool 12 includes a low-power radio resource pool 121 and a high-power radio resource pool 122.
  • the auxiliary antenna is disposed within 100 meters of the macro station.
  • an embodiment of the present invention further provides a method for communicating by using a distributed antenna array system, where the method includes:
  • the controller determines an antenna unit that provides a service to the user equipment according to a signal state of the user equipment under the coverage of the macro station;
  • the controller allocates an antenna resource to the user equipment, and sends the configured antenna resource information to the baseband resource pool;
  • the baseband resource pool maps the configured antenna resources to physical ports of the corresponding radio frequency resource pool according to the configured antenna resources
  • the radio resource pool controls the antenna unit corresponding to the physical port to provide a communication service to the user equipment according to the mapped physical port.
  • the antenna unit includes a macro station antenna and a plurality of auxiliary antennas, and the multiple auxiliary antennas are distributed in an antenna unit capable of cooperating with the coverage of the macro station. s position.
  • the signal state of the user equipment is a path loss of the user equipment to an antenna unit that covers the user equipment, in combination with the second aspect or the first possible implementation manner;
  • the signal state of the user equipment is downlink receiving power of the user equipment.
  • the signal state of the user equipment is that the antenna unit receives the received power of the uplink signal sent by the user equipment.
  • the auxiliary day is a silhouette antenna or an antenna with a large downtilt at the proximal end.
  • the auxiliary antenna is a single-row or dual-column polarized antenna.
  • the radio resource resource pool includes a low-power radio resource resource pool and a high-power radio resource resource pool, in combination with the second aspect or the first possible implementation manner to the fourth possible implementation manner.
  • the auxiliary antenna is disposed at a position capable of cooperating with the antenna unit within the coverage of the macro station, the auxiliary antenna is closer to the macro station, and a large-scale optical fiber connection is not required, thereby reducing the number of optical antennas.
  • the deployment cost of the distributed antenna array system is at the same time, because the auxiliary antenna is disposed at a position that can cooperate with the antenna unit within the coverage of the macro station, so that the user equipment in the macro station can obtain the cooperative transmission service of multiple antennas, and further Improves signal quality and reduces interference, further improving user experience and increasing network capacity.
  • FIG. 1 is a schematic diagram of a distributed antenna array system according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of another distributed antenna system according to an embodiment of the present invention
  • FIG. 3 is a distributed antenna system according to an embodiment of the present invention
  • a schematic diagram of coverage
  • FIG. 4 is a schematic diagram of another coverage of a distributed antenna system according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of still another coverage of a distributed antenna system according to an embodiment of the present invention.
  • FIG. 6 is a schematic flowchart of a method for performing communication through a distributed antenna system according to an embodiment of the present invention.
  • the embodiment of the present invention provides a distributed antenna array system.
  • the antenna array system includes multiple antenna units, a radio frequency resource pool 12, a baseband resource pool 13, and a controller 14.
  • the plurality of antenna units are respectively connected to the radio resource pool 12, and the radio resource pool 12 is also connected to the baseband resource pool 13, and the baseband resource pool 13 is also connected to the controller 14.
  • the plurality of antenna units are 111, 112A, 112B and 112C
  • the antenna unit 111 is a macro station antenna
  • the antenna units 112A, 112B and 112C are auxiliary antennas.
  • the plurality of antenna units may be respectively connected to the radio frequency resource pool 12 by using a feeding cable.
  • the auxiliary antenna can use a low profile antenna, as shown in Figure 112 for the 112B and 112C antennas.
  • the auxiliary antenna may also be a single-row or double-row or multi-column polarized antenna, as shown in FIG. 1 for the 112A antenna.
  • the thickness of the antenna may be less than 40 mm, so that the profile thickness and the volume weight of the antenna elements 112B and 112C can be greatly reduced, and the wall can be concealed.
  • the installation makes it easy to locate the antenna when planning the antenna position, and can be directly fixed to the building according to actual needs, without requiring additional space for development, making the project easy to implement.
  • auxiliary antenna may also be an antenna with a near-downward dip angle of the non-equidistant array elements, which is used to ensure vertical dimension coverage, and is used for realizing cooperation on the near end of the macro station antenna.
  • the macro station antenna 111 is disposed on the macro station, and the plurality of auxiliary antennas are distributed at positions that can cooperate with antenna units within the coverage of the macro station.
  • the reason why the plurality of auxiliary antennas are distributed in a position that can cooperate with the antenna unit in the coverage of the macro station is because the auxiliary antenna and the macro station are required to be focused on an area under the coverage of the macro station.
  • Cooperative transmission between antennas 111 is required, if the macro station antenna 111 The distance from the auxiliary antenna is far, and the time when the receiver of the macro station antenna 111 and the auxiliary antenna receives the signal of the user equipment may be obviously inconsistent. This time difference may cause the delayed antenna signals to be in the frequency domain.
  • the two auxiliary antennas can also cooperate. Transmission, since the macro station antenna 111 is usually located at the center of the macro station, and in the case where all the auxiliary antennas can be cooperatively transmitted with the macro station antenna 111, the distance between the two auxiliary antennas is also coordinated. Transmission requirements.
  • the multiple auxiliary antennas may be specifically disposed within a distance of 100 meters or more around the macro station.
  • the controller 14 is configured to determine an antenna unit that provides a service to the user equipment according to a signal state of the user equipment in the coverage of the macro station, and determine the user equipment according to the transceiver capability of the user equipment. Whether the multiple antennas are required to perform the coordinated transmission and the corresponding transmission mode, and then send the antenna resource information configured to the user equipment to the baseband resource pool, so that the baseband resource pool 13 and the radio frequency resource pool 12 control the configured antenna resources to the User equipment provides communication services.
  • the baseband resource pool 13 and the radio frequency resource pool 12 control the corresponding antenna unit to provide communication services to the user equipment according to the configured antenna resource information sent by the controller 14.
  • the controller 14 determines that the antenna unit that provides the service to the user equipment is specifically a physical port or a logical port that determines the antenna unit.
  • the physical port and the logical port of the antenna unit may be different. According to a certain mapping rule, the controller may map multiple physical antenna ports into one or several logical transmitting ports, and the process is transparent to the terminal.
  • the radio resource pool 12 receives the configured antenna resource information sent by the controller 14, the configured antenna resource information includes information about an antenna unit that provides service to the user equipment, and a transmission mode.
  • the radio resource pool 12 controls the corresponding antenna unit to provide services to the user equipment according to the configured antenna resource information.
  • the controller 14 monitors the coverage of the macro station.
  • the signal state of the user equipment UE1 assuming that in the linear domain, the UE1 corresponds to the base station having a maximum signal processing capability of 4 antenna transmissions, and the antenna units 111 and 112A to 112C are both a pair of dual-polarized antennas; assuming the path loss of the UE1 to the antenna unit Sorted from small to large: 112B, 112C, 112A, 111, then the difference between the reciprocal of the path loss of UE1 to antenna unit 112B and the reciprocal sum of the path loss of 112A/112C/111 exceeds the first preset threshold, then 112B is determined.
  • the controller 14 continues to determine whether the 112C can also serve as the serving antenna unit of the UE1. If the controller 14 determines 112C as the serving antenna unit of the UE1, the controller 14 determines to perform coordinated transmission of 112B and 112C to the UE1 while determining the corresponding transmission mode, and then the controller 14 uses the antenna resources of 112B and 112C.
  • the configuration is performed on the UE1, and the configured antenna resource information is sent to the baseband resource pool 13.
  • the configured antenna resource information includes antenna ports of 112B and 112C, or logical ports of 112B and 112C, and information such as a transmission mode.
  • the baseband resource pool 13 then maps the logical ports of the 112B and 112C to the physical ports of the 112B and 112C according to the configured antenna resource information, that is, the mapping to the corresponding addresses 112B and 112C of the radio resource pool 12.
  • the radio resource pool provides cooperative services to the user equipment through corresponding port control antennas 112B and 112C.
  • the antenna unit when the controller 14 determines the antenna unit that provides the service to the user equipment, the antenna unit may further determine, according to the received power of the user equipment sending a signal, the determining, to the user.
  • the antenna unit that the device provides for service within the maximum range of current UE reception processing capability, the received power of the antenna unit is ordered from large to small, if the ratio of the sum of the received power of the antenna unit and the other antenna units after sorting by the antenna unit exceeds The second predetermined threshold, the controller 14 determines that the antenna unit is an antenna unit that provides service to the user equipment.
  • the antenna unit that provides the service to the user equipment may be determined according to the downlink receiving power of the user equipment.
  • the downlink receiving power of the plurality of antenna units of the user equipment is sorted according to the largest to the smallest range, and the user equipment receives the downlink receiving power of the antenna unit and the The ratio of the sum of the received powers of the other antenna units received by the sorted user equipment exceeds a third preset threshold, and the controller 14 determines the antenna
  • the unit is an antenna unit that provides service to the user equipment.
  • the controller 14 can also determine the antenna unit that provides the service to the user equipment according to the signal state of the user equipment, which is not specifically described in this embodiment of the present invention.
  • the radio resource pool 12 may include a low-power radio resource pool 121 and a high-power radio resource pool 122.
  • One end of the low-power radio frequency resource pool 121 and the high-power radio frequency resource pool 122 are respectively connected to the baseband resource pool 13, and the other end is respectively connected to a corresponding antenna unit, and the baseband resource pool 13 and the controller are respectively 14 connected.
  • the low-power radio frequency resource pool 121 includes a low-power radio frequency module
  • the high-power radio frequency resource pool 122 includes a high-power radio frequency module.
  • the high power radio frequency module is used to cover the entire range of the macro station, and the low power radio frequency module is used to cover the key area.
  • the power of a low-power RF module is less than 5W
  • the power of a high-power RF module is greater than 5W.
  • the auxiliary antenna transmits a scattered beam, so that the coverage effect of the entire macro station can be different according to the position of the auxiliary antenna distribution.
  • the detailed process is specifically as follows: As shown in FIG. 3, the macro station antenna 111 covers the service range of the entire macro station, and the auxiliary antenna distribution is set around the macro station to cover certain areas of the service area of the macro station, The auxiliary antenna and the adjacent antenna can cooperate to achieve the key coverage of the key areas.
  • the macro station antenna 111 covers the service range of the entire macro station, and the auxiliary antenna is an antenna having a large downtilt angle, and the downtilt angle of the auxiliary antenna can be set between 20 degrees and 30 degrees for
  • the macro station antenna 111 provides a vertical coverage in the vertical direction to increase the network capacity.
  • the auxiliary antenna described in FIG. 3 generally has a small downtilt angle ( ⁇ 20 degrees) and can cover the near end and the far end of the macro station.
  • FIG. 4 uses a large downtilt antenna, and the proximal end is vertically covered to ensure The coverage of the vertical dimension.
  • the macro station antenna 111 covers the service range of the entire macro station, and the auxiliary antenna may be extended through the optical fiber connection to reach a relatively long-distance key area, because the area to be covered by the key area may be far away from the macro station.
  • Remote coverage at this time for controller 14 to centrally control the macro station antenna 111 and the auxiliary antenna for a location that can be coordinated with the macro station antenna
  • the external auxiliary antenna can control interference, which can improve network performance.
  • the auxiliary antenna is disposed at a position capable of cooperating with the antenna unit within the coverage of the macro station, the auxiliary antenna is closer to the macro station, and a large-scale optical fiber connection is not required, thereby reducing
  • the deployment cost of the distributed antenna array system is at the same time, because the auxiliary antenna is disposed at a position that can cooperate with the antenna unit within the coverage of the macro station, so that the user equipment in the macro station can obtain the cooperative transmission service of multiple antennas, and further Improves signal quality and reduces interference, further improving user experience and increasing network capacity.
  • An embodiment of the present invention provides a method for performing communication by using a distributed antenna array system.
  • the method is based on the distributed antenna array system provided in Embodiment 1.
  • the antenna array system includes multiple The antenna unit, the radio frequency resource pool 12, the baseband resource pool 13 and the controller 14, the plurality of antenna units are connected to the radio frequency resource pool 12, and the radio frequency resource pool 12 is further connected to the baseband resource pool 13,
  • the baseband resource pool 13 is also connected to the controller 14; the plurality of antenna units such as 111, 112A, 112B and 112C, the antenna unit 111 being a macro station antenna 111, and the antenna units 112A, 112B and 112C being auxiliary antennas.
  • the plurality of antenna units may be respectively connected to the radio frequency resource pool 12 by using a feeding cable.
  • the auxiliary antenna can use a low profile antenna, as shown in Figure 112 for the 112B and 112C antennas.
  • the auxiliary antenna may also be a single-row or double-row or multi-column polarized antenna, as shown in FIG. 1 for the 112A antenna.
  • the thickness of the antenna can be less than 40mm, so that the contour thickness and the volume weight of the antenna units 112B and 112C can be greatly reduced, which facilitates the concealed installation of the wall, so that the site selection is easy when planning the antenna position, and can be directly fixed to the actual needs. On the building, no additional space is required to make the project easy to implement.
  • auxiliary antenna may also be an antenna with a near-downward dip angle of the non-equidistant array elements, which is used to ensure vertical dimension coverage, and is used for realizing cooperation on the near end of the macro station antenna.
  • the macro station antenna 111 is disposed on the macro station, and the multiple auxiliary antennas are distributed. Placed in a position that can cooperate with antenna elements within the coverage of the macro station.
  • the reason why the plurality of auxiliary antennas are distributed in a position that can cooperate with the antenna unit in the coverage of the macro station is because the auxiliary antenna and the macro station are required to be focused on an area under the coverage of the macro station. Cooperative transmission between the antennas 111 is required. If the macro station antenna 111 and the auxiliary antenna are far apart, the time when the macro station antenna 111 and the receiver of the auxiliary antenna receive the signal of the user equipment may occur. Obviously inconsistent, this time difference will cause the delayed antenna signal to have different phase rotations on each carrier in the frequency domain, and the specific phase rotation will vary with the carrier position.
  • the phase rotation is too large, the user equipment channel estimation Significant errors can occur, of course, cooperative transmission between the two auxiliary antennas is also possible, since the macro station antenna 111 is usually located at the center of the macro station, ensuring that all auxiliary antennas can be cooperatively transmitted with the macro station antenna 111. In case, then the distance between any two auxiliary antennas is also in line with the coordinated transmission begging.
  • the multiple auxiliary antennas may be specifically disposed within a distance of 100 meters or more around the macro station.
  • the method includes:
  • the controller determines, according to a signal state of the user equipment in the coverage of the macro station, an antenna unit that provides a service to the user equipment.
  • the controller 14 determines that the antenna unit that provides the service to the user equipment is specifically a physical port or a logical port that determines the antenna unit.
  • the physical port and the logical port of the antenna unit may be different. According to a certain mapping rule, the controller may map multiple physical antenna ports into one or several logical transmitting ports, and the process is transparent to the terminal.
  • the controller 14 can monitor the user equipment UE1 under the coverage of the macro station.
  • Signal state assuming that in the linear domain, UE1 corresponds to the base station having a maximum of 4 antennas for signal processing, and antenna units 111 and 112A to 112C are both pairs of dual-polarized antennas; assuming that the path loss of UE1 to antenna elements is sorted from small to large For: 112B, 112C, 112A, 111, then the reciprocal of the path loss of UE1 to antenna unit 112B and the reciprocal of the path loss of 112A/112C/111 If the difference exceeds the first preset threshold, then 112B is determined to provide service to UE1. Since the UE1 has the signal processing capability of the 4-antenna transmission, the controller 14 continues to determine whether the 112C can also serve as the serving antenna unit of the UE1. If
  • the antenna unit may further determine, according to the received power of the user equipment sending a signal, the determining, to the user.
  • the antenna unit that the device provides for service If the current UE receives the processing capability within the maximum range, the received power of the antenna unit is sorted from large to small, if the ratio of the antenna unit to the sum of the received powers of the other antenna units after the antenna unit is sorted Above the second predetermined threshold, the controller 14 determines that the antenna unit is an antenna unit that provides service to the user equipment.
  • the antenna unit that provides the service to the user equipment may be determined according to the downlink receiving power of the user equipment.
  • the downlink receiving power of the plurality of antenna units of the user equipment is sorted according to the largest to the smallest range, and the user equipment receives the downlink receiving power of the antenna unit and the The ratio of the sum of the received powers of the other antenna units received by the sorted user equipment exceeds a third preset threshold, and the controller 14 determines that the antenna unit is an antenna unit that provides service to the user equipment.
  • the controller 14 can also determine the antenna unit that provides the service to the user equipment according to the signal state of the user equipment, which is not specifically described in this embodiment of the present invention.
  • the controller determines, according to an antenna capability of the user equipment, whether the user equipment needs multiple antennas to perform coordinated transmission.
  • the controller 14 determines to perform cooperative transmission of 112B and 112C to UE1 while determining the corresponding transmission mode.
  • the controller configures an antenna resource to the user equipment, and sends the configured antenna resource information to the baseband resource pool.
  • the controller 14 configures the antenna resources of 112B and 112C to the UE1, and sends the configured antenna resource information to the baseband resource pool 13.
  • the configured antenna resource information includes antenna physical ports of 112B and 112C, or logical ports of 112B and 112C, and information such as a transmission mode.
  • the baseband resource pool maps the configured antenna resource to a physical port of a corresponding radio frequency resource pool according to the configured antenna resource.
  • the baseband resource pool 13 then maps the logical ports of the 112B and 112C to the physical ports of the 112B and 112C according to the configured antenna resource information, that is, the mapping to the corresponding addresses 112B and 112C of the radio resource pool 12. On the physical port.
  • the radio frequency resource pool controls, according to the mapped physical port, an antenna unit corresponding to the physical port to provide a communication service to the user equipment.
  • the radio resource pool 12 may include a low-power radio resource pool 121 and a high-power radio resource pool 122.
  • One end of the low-power radio frequency resource pool 121 and the high-power radio frequency resource pool 122 are respectively connected to the baseband resource pool 13, and the other end is respectively connected to a corresponding antenna unit, and the baseband resource pool 13 and the controller are respectively 14 connected.
  • the low-power radio frequency resource pool 121 includes a low-power radio frequency module
  • the high-power radio frequency resource pool 122 includes a high-power radio frequency module.
  • the high power radio frequency module is used to cover the entire range of the macro station, and the low power radio frequency module is used to cover the key area.
  • the power of a low-power RF module is less than 5W
  • the power of a high-power RF module is greater than 5W.
  • the auxiliary antenna is disposed at a position capable of cooperating with the antenna unit within the coverage of the macro station, the auxiliary antenna is closer to the macro station, and a large-scale optical fiber connection is not required, thereby reducing
  • the deployment cost of the distributed antenna array system is at the same time, because the auxiliary antenna is disposed at a position that can cooperate with the antenna unit within the coverage of the macro station, so that the user equipment in the macro station can obtain the cooperative transmission service of multiple antennas, and further Improves signal quality and reduces interference, further improving user experience and increasing network capacity.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Radio Transmission System (AREA)

Abstract

本发明实施例提供了一种通过分布式天线阵列系统进行通信的方法及阵列系统，能够减小分布式天线的部署成本，同时能够提升信号质量并降低干扰，进一步改善用户体验和提升网络容量。该天线阵列系统包括多只天线单元、基带资源池、射频资源池以及控制器，宏站天线设置于宏站上，多只辅助天线分布设置于能够与相邻天线单元进行协作的位置；控制器，用于监控宏站覆盖范围下的用户设备的信号状态，确定向用户设备提供服务的天线单元，并根据用户设备的能力，确定是否对用户设备进行多个天线协同传输及相应的传输模式，然后向用户设备配置天线资源，通过基带资源池和射频资源池控制配置的天线资源向所述用户设备提供通信服务。本发明实施例适用于无线通信技术领域。

Description

通过分布式天线阵列系统进行通信的方法及阵列系统 技术领域
本发明涉及无线通信领域， 尤其涉及一种通过分布式天线阵列系统进行 通信的方法及阵列系统。
背景技术
随着无线通信技术以及相关服务的迅猛发展， 人们对于可靠持续的高速 无线宽带服务需求越来越高。按照现有评估， 未来十年， 人们对无线容量需求 相对现在可能会有数十倍甚至上百倍的提升。
为了应对这一挑战， 一系列的旨在大幅提高无线网络容量与覆盖的新架 构被提出。 目前， 应用最广泛的技术有异构网、 分布式天线系统和高阶小区分 裂等， 使得无线网络的容量和覆盖都极为明显的得到了提高。
其中， 对于异构网技术来说， 是通过在宏站覆盖范围内部署若干小站来 提高无线网络的容量和覆盖。 而对于高阶小区分裂技术来说，是通过对原小区 的天线进行劈裂， 实现覆盖容量的增强。 而分布式天线系统技术来说， 是一个 由分布于某个建筑物内， 专门用于提供室内无线覆盖的多个天线组成的网络， 每个子天线单元需要部署在中心站点的远端， 通过光纤连接。
但是， 现有技术中的异构网技术和分布式天线系统技术， 都分别需要在 规划中为小站或子天线单元选址，这使得工程实施较为麻烦。且小站和宏站之 间需要大范围的光纤连接，中心站点和每个子天线单元之间也需要大范围的光 纤连接， 使得工程成本较高。
而现有技术中的高阶小区分裂技术， 由于容量的提升程度与可劈裂的小 区数量相关， 可分裂的小区越多， 理论上容量越高， 但小区分裂后会使得新引 入的劈裂小区间的干扰， 进而使得无线网络容量的提升不是 ^艮显著。
发明内容
本发明的实施例提供一种分布式天线阵列系统以及通过分布式天线阵列 系统进行通信的方法， 能够减小分布式天线的部署成本， 同时能够提升信号 质量并降低干扰， 进一步改善用户体验和提升网络容量。
为达到上述目的， 本发明的实施例采用如下技术方案：
第一方面， 本发明实施例提供了一种分布式天线阵列系统， 所述天线阵 列系统包括多只天线单元、射频资源池 12、基带资源池 13以及控制器 14, 所 述多只天线单元和所述射频资源池 12相连，所述射频资源池 12还和所述基带 资源池 13相连， 所述基带资源池 13还和所述控制器 14相连， 所述多只天线 单元包括宏站天线 111和多只辅助天线；所述宏站天线 111设置于所述宏站上， 所述多只辅助天线分布设置于能够与宏站覆盖范围内的天线单元进行协作的 位置；
所述控制器 14, 用于根据所述宏站覆盖范围下的用户设备的信号状态， 确定向所述用户设备提供服务的天线单元， 并根据所述用户设备的收发能力， 确定是否对所述用户设备进行多个天线协同传输及相应的传输模式 ,然后向所 述基带资源池 13发送向所述用户设备配置的天线资源信息， 使得基带资源池 13和射频资源池 12控制配置的天线资源向所述用户设备提供通信服务；
所述基带资源池 13和所述射频资源池 12, 用于根据所述控制器 14发送 的配置的天线资源信息控制相应的天线单元向所述用户设备提供通信服务。
在第一种可能的实现方式中， 根据第一方面， 所述用户设备的信号状态 为所述用户设备到覆盖所述用户设备的天线单元的路损；
或
所述用户设备的信号状态为所述用户设备的下行接收功率； 或
所述用户设备的信号状态为所述天线单元接收所述用户设备发送的上行 信号的接收功率。
在第二种可能的实现方式中， 结合第一种可能的实现方式， 所述辅助天 线为氏轮廓天线或近端为大下倾角的天线。
在第三种可能的实现方式中， 结合第一种可能的实现方式， 所述辅助天 线为单列或双列极化天线。
在第四种可能的实现方式中， 结合第一方面或第一种可能的实现方法至 第三种可能的实现方式， 所述射频资源池 12包括小功率射频资源池 121和大 功率射频资源池 122。
在第五种可能的实现方式中， 结合第四种可能的实现方式， 所述辅助天 线设置于所述宏站周围 100米内。
第二方面， 本发明实施例还提供了一种通过分布式天线阵列系统进行通 信的方法， 该方法包括：
控制器根据宏站覆盖范围下的用户设备的信号状态， 确定向所述用户设 备提供服务的天线单元；
所述控制器根据所述用户设备的收发能力， 确定所述用户设备是否需要 多个天线协同传输及相应的传输模式；
所述控制器向所述用户设备配置天线资源， 将所述配置的天线资源信息 发送给所述基带资源池；
所述基带资源池根据所述配置的天线资源， 将所述配置的天线资源映射 到对应的射频资源池的物理端口；
所述射频资源池根据所述映射的物理端口， 控制所述物理端口对应的天 线单元向所述用户设备提供通信服务。
在第一种可能的实现方式中， 根据第二方面， 所述天线单元包括宏站天 线和多只辅助天线，所述多只辅助天线分布设置于能够与宏站覆盖范围内的天 线单元进行协作的位置。
在第二种可能的实现方式中， 结合第二方面或第一种可能的实现方式， 所述用户设备的信号状态为所述用户设备到覆盖所述用户设备的天线单元的 路损；
或
所述用户设备的信号状态为所述用户设备的下行接收功率； 或
所述用户设备的信号状态为所述天线单元接收所述用户设备发送的上行 信号的接收功率。
在第三种可能的实现方式中， 结合第二种可能的实现方式， 所述辅助天 线为氏轮廓天线或近端为大下倾角的天线。
在第四种可能的实现方式中， 结合第二种可能的实现方式， 所述辅助天 线为单列或双列极化天线。
在第五种可能的实现方式中， 结合第二方面或第一种可能的实现方式至 第四种可能的实现方式，所述射频资源池包括小功率射频资源池和大功率射频 资源池。
采用上述的分布式天线阵列系统， 由于辅助天线设置于能够与宏站覆盖 范围内的天线单元进行协作的位置， 这使得辅助天线距离宏站较近， 不需要 大范围的光纤连接， 从而降低了分布式天线阵列系统的部署成本， 同时由于 辅助天线设置于能够与宏站覆盖范围内的天线单元进行协作的位置， 从而能 够使得宏站范围内用户设备能够获得多个天线的协作传输服务， 进而能够提 升信号质量并降低干扰， 进一步改善用户体验和提升网络容量。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案， 下面将对实 施例或现有技术描述中所需要使用的附图作简单地介绍， 显而易见地， 下面 描述中的附图仅仅是本发明的一些实施例， 对于本领域普通技术人员来讲， 在不付出创造性劳动的前提下， 还可以根据这些附图获得其他的附图。 图 1为本发明实施例提供的一种分布式天线阵列系统示意图； 图 2为本发明实施例提供的另一种分布式天线系统结构示意图； 图 3 为本发明实施例提供的分布式天线系统的一种覆盖范围示意 图；
图 4 为本发明实施例提供的分布式天线系统的另一覆盖范围示意 图；
图 5 为本发明实施例提供的分布式天线系统的又一覆盖范围示意 图；
图 6 为本发明实施例提供的通过分布式天线系统进行通信的方法 流程示意图。
具体实施方式 下面将结合本发明实施例中的附图， 对本发明实施例中的技术方案进行 清楚、 完整地描述， 显然， 所描述的实施例仅仅是本发明一部分实施例， 而不 是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创 造性劳动前提下所获得的所有其他实施例， 都属于本发明保护的范围。
实施例一、
本发明实施例提供了一种分布式天线阵列系统， 如图 1 所示， 所述天线 阵列系统包括多只天线单元、 射频资源池 12、 基带资源池 13以及控制器 14。 其中， 所述多只天线单元分别和所述射频资源池 12的相连， 所述射频资源池 12还与所述基带资源池 13相连，所述基带资源池 13还与所述控制器 14相连。 其中， 所述多只天线单元如 111、 112A、 112B和 112C, 天线单元 111为宏站 天线， 天线单元 112A、 112B和 112C为辅助天线。
其中， 所述多只天线单元分别可以采用馈缆线连接至射频资源池 12。 具 体的，所述辅助天线可以采用低轮廓天线，具体参见图 1所示的 112B和 112C 天线。 当然所述辅助天线具体还可以是单列或双列或多列的极化天线，具体见 图 1所示的 112A天线。
由于本发明实施例中采用的辅助天线以是低轮廓天线，如 112B和 112C, 该天线的厚度可以小于 40mm, 这样天线单元 112B和 112C的轮廓厚度和体 积重量可大为降低， 便于挂墙隐蔽安装， 使得在规划天线位置时选址容易， 可 以根据实际需要直接固定于建筑物上， 不需要额外的开辟空间，使得工程实施 容易。
进一步的， 所述辅助天线还可以为非等间距排列阵元的近端大下倾角的 天线， 用于保证垂直维度的覆盖， 用于实现对宏站天线近端的协作。
其中， 所述宏站天线 111 设置于所述宏站上， 所述多只辅助天线分布设 置于能够与宏站覆盖范围内的天线单元进行协作的位置。
之所以所述多只辅助天线分布设置于能够与宏站覆盖范围内的天线单元 进行协作的位置， 是因为若需要对宏站覆盖范围下的某一区域进行重点覆盖， 所述辅助天线和宏站天线 111 之间需要进行协同传输， 若所述宏站天线 111 和所述辅助天线距离较远，则导致所述宏站天线 111和所述辅助天线的接收机 接收用户设备的信号会的时间会明显不一致，这个时间差异会导致滞后的天线 信号在频域各个载波上存在不同的相位旋转，且具体的相位旋转量会随载波位 置的变化而变化， 如果相位旋转量过大， 用户设备信道估计会产生明显误差， 当然两个辅助天线之间也可以进行协同传输， 因为宏站天线 111 通常位 于所述宏站的中心，在保证所有辅助天线能够和所述宏站天线 111能够进行协 同传输的情况下， 那么所述任意两个辅助天线的距离也符合协同传输的要求。
具体的， 所述多只辅助天线具体可以分布设置于所述宏站周围 100米内 或者更远的位置。
所述控制器 14, 用于根据所述宏站覆盖范围下的用户设备的信号状态， 确定向所述用户设备提供服务的天线单元， 并根据所述用户设备的收发能力， 确定所述用户设备是否需要多个天线协同传输及相应的传输模式 ,然后向所述 基带资源池发送向所述用户设备配置的天线资源信息， 使得基带资源池 13和 射频资源池 12控制配置的天线资源向所述用户设备提供通信服务。
所述基带资源池 13和所述射频资源池 12, 根据所述控制器 14发送的配 置的天线资源信息控制相应的天线单元向所述用户设备提供通信服务。
其中， 所述控制器 14确定向所述用户设备提供服务的天线单元具体为确 定所述天线单元的物理端口或逻辑端口。而天线单元的物理端口和逻辑端口可 以不同，根据一定的映射规则， 所述控制器可以将多根物理天线端口映射成一 个或者数个逻辑发射端口， 该过程对终端是透明的。 这样在射频资源池 12接 收到所述控制器 14发送的配置的天线资源信息后， 所述配置的天线资源信息 中包括了向所述用户设备提供服务的天线单元的信息， 以及传输模式，所述射 频资源池 12根据所述配置的天线资源信息， 控制相应的天线单元向所述用户 设备提供服务。
具体如图 1 所示， 由于所述多只辅助天线分别设置于能够与宏站覆盖范 围内的天线单元进行协作的位置， 这样控制器 14监控所述宏站覆盖范围下的 用户设备 UE1的信号状态， 假设在线性域中， UE1对应基站最大具有 4天线 发射的信号处理能力， 天线单元 111和 112A〜112C都是一对双极化天线； 假 定 UE1到天线单元的路损从小到大排序为： 112B, 112C, 112A, 111 , 那么 UE1到天线单元 112B的路损的倒数与 112A/112C/111的路损的倒数总和的差 值超过第一预设阈值， 则确定 112B向 UE1的提供服务。 由于所述 UE1具有 4天线发射的信号处理能力，所述控制器 14依此继续判断 112C是否也可以作 为所述 UE1的服务天线单元。若所述控制器 14确定 112C为所述 UE1的服务 天线单元， 则控制器 14确定向 UE1进行 112B和 112C的协同传输， 同时确 定相应的传输模式， 然后控制器 14将 112B和 112C的天线资源配置给 UE1 , 将所述配置的天线资源信息发送给所述基带资源池 13。 所述配置的天线资源 信息包括 112B和 112C的天线端口， 或 112B和 112C的逻辑端口 , 以及传输 模式等信息。 然后所述基带资源池 13根据所述配置的天线资源信息， 将所述 112B和 112C的逻辑端口映射到所述 112B和 112C的物理端口上， 即映射到 射频资源池 12中 112B和 112C对应的物理端口上，所述射频资源池通过对应 的端口控制天线 112B和 112C向所述用户设备提供协作服务。
可选的， 在线性域， 所述控制器 14确定向所述用户设备提供服务的天线 单元时，还可以根据所述天线单元接收所述用户设备发送信号的接收功率，来 确定向所述用户设备提供服务的天线单元。在当前 UE接收处理能力的最大范 围以内，所述天线单元的接收功率按照从大到小进行排序，若所述天线单元与 所述天线单元排序后的其它天线单元的接收功率的和的比值超过第二预设阈 值，所述控制器 14确定所述天线单元为向所述用户设备提供服务的天线单元。
可选的， 在线性域， 所述控制器 14确定向所述用户设备提供服务的天线 单元时，还可以根据所述用户设备的下行接收功率，来确定向所述用户设备提 供服务的天线单元。 在当前 UE接收处理能力的最大范围以内， 所述用户设备 的接收多个天线单元的下行接收功率按照从大到小进行排序，若所述用户设备 接收所述天线单元的下行接收功率与所述排序后的用户设备接收的其它天线 单元的接收功率的和的比值超过第三预设阈值， 所述控制器 14确定所述天线 单元为向所述用户设备提供服务的天线单元。
当然， 在非线性域， 所述控制器 14也可以根据所述用户设备的信号状态 来确定向所述用户设备提供服务的天线单元， 本发明实施例对此不再具体贅 述。
可选的，如图 2所示，所述射频资源池 12可以包括小功率射频资源池 121 和大功率射频资源池 122。所述小功率射频资源池 121和大功率射频资源池 122 的一端都分别和所述基带资源池 13相连，另一端分别和相应的天线单元相连， 而所述基带资源池 13和所述控制器 14相连。 其中， 所述小功率射频资源池 121中包括小功率射频模块， 所述大功率射频资源池 122中包括大功率射频模 块。所述大功率射频模块用于覆盖宏站的整体范围， 而所述小功率射频模块用 于覆盖重点区域。 通常， 小功率射频模块的功率小于 5W, 大功率射频模块的 功率大于 5W。
基于以上的天线阵列系统， 所述辅助天线发射的是零散波束， 这样根据 辅助天线分布的位置，能够使得整个宏站的覆盖效果不同。详细过程具体如下： 如图 3所示， 宏站天线 111覆盖了整个宏站的服务范围， 而辅助天线分 布设置在宏站的周围，对宏站的服务区域的某些区域进行覆盖， 而由于辅助天 线与相邻的天线能够进行协作， 从而能够达到对重点区域进行重点覆盖的目 的。
如图 4所示， 宏站天线 111覆盖了整个宏站的服务范围， 而辅助天线为 具有大下倾角的天线，该辅助天线的下倾角可设置为 20度到 30度之间，用于 在宏站天线 111近端提供垂直方向的重点覆盖， 提升网络容量。 对照来说， 图 3所述的辅助天线一般为下倾角较小（< 20度），可以覆盖宏站的近端及远端， 图 4采用的是大下倾角天线， 近端垂直覆盖， 保证了垂直方向维度的覆盖。
如图 5所示， 宏站天线 111覆盖了整个宏站的服务范围， 可能由于所需 重点覆盖的区域距离宏站较远，辅助天线可以通过光纤连接拉远， 以达到相对 远距离重点区域的远端覆盖， 而此时用于控制器 14对所述宏站天线 111和所 述辅助天线进行集中式控制，对于设置在能够与所述宏站天线进行协作的位置 外的辅助天线， 可以进行控制干扰， 从而能够提升网络性能。
采用上述的分布式天线阵列系统， 由于辅助天线设置于能够与宏站覆盖 范围内的天线单元进行协作的位置，这使得辅助天线距离宏站较近， 不需要大 范围的光纤连接，从而降低了分布式天线阵列系统的部署成本， 同时由于辅助 天线设置于能够与宏站覆盖范围内的天线单元进行协作的位置，从而能够使得 宏站范围内用户设备能够获得多个天线的协作传输服务，进而能够提升信号质 量并降低干扰， 进一步改善用户体验和提升网络容量。
实施例二、
本发明实施例提供了一种通过分布式天线阵列系统进行通信的方法， 该 方法基于实施例一提供的分布式天线阵列系统， 具体的， 如图 1所示， 所述天 线阵列系统包括多只天线单元、射频资源池 12、基带资源池 13以及控制器 14, 所述多只天线单元和所述射频资源池 12相连，所述射频资源池 12还和所述基 带资源池 13相连， 所述基带资源池 13还和所述控制器 14相连； 所述多只天 线单元如 111、 112A、 112B和 112C, 天线单元 111为宏站天线 111 , 天线单 元 112A、 112B和 112C为辅助天线。
其中， 所述多只天线单元分别可以采用馈缆线连接至射频资源池 12。 具 体的，所述辅助天线可以采用低轮廓天线，具体参见图 1所示的 112B和 112C 天线。 当然所述辅助天线具体还可以是单列或双列或多列的极化天线，具体见 图 1所示的 112A天线。
112C, 该天线的厚度可以小于 40mm, 这样天线单元 112B和 112C的轮廓厚 度和体积重量可大为降低，便于挂墙隐蔽安装，使得在规划天线位置时选址容 易， 可以根据实际需要直接固定于建筑物上， 不需要额外的开辟空间， 使得工 程实施容易。
进一步的， 所述辅助天线还可以为非等间距排列阵元的近端大下倾角的 天线， 用于保证垂直维度的覆盖， 用于实现对宏站天线近端的协作。
其中， 所述宏站天线 111 设置于所述宏站上， 所述多只辅助天线分布设 置于能够与宏站覆盖范围内的天线单元进行协作的位置。
之所以所述多只辅助天线分布设置于能够与宏站覆盖范围内的天线单元 进行协作的位置， 是因为若需要对宏站覆盖范围下的某一区域进行重点覆盖， 所述辅助天线和宏站天线 111 之间需要进行协同传输， 若所述宏站天线 111 和所述辅助天线距离较远，则导致所述宏站天线 111和所述辅助天线的接收机 接收用户设备的信号会的时间会明显不一致，这个时间差异会导致滞后的天线 信号在频域各个载波上存在不同的相位旋转，且具体的相位旋转量会随载波位 置的变化而变化， 如果相位旋转量过大， 用户设备信道估计会产生明显误差， 当然两个辅助天线之间也可以进行协同传输， 因为宏站天线 111 通常位 于所述宏站的中心，在保证所有辅助天线能够和所述宏站天线 111能够进行协 同传输的情况下， 那么所述任意两个辅助天线的距离也符合协同传输的要求。
具体的， 所述多只辅助天线具体可以分布设置于所述宏站周围 100米内 或者更远的位置。
具体如图 6所示， 该方法包括：
601、 控制器根据所述宏站覆盖范围下的用户设备的信号状态， 确定向所 述用户设备提供服务的天线单元。
其中， 所述控制器 14确定向所述用户设备提供服务的天线单元具体为确 定所述天线单元的物理端口或逻辑端口。而天线单元的物理端口和逻辑端口可 以不同，根据一定的映射规则， 所述控制器可以将多根物理天线端口映射成一 个或者数个逻辑发射端口， 该过程对终端是透明的。
具体如图 1 所示， 由于所述多只辅助天线分别设置于能够与宏站覆盖范 围内的天线单元进行协作的位置， 这样控制器 14能够监控所述宏站覆盖范围 下的用户设备 UE1的信号状态， 假设在线性域中， UE1对应基站最大具有 4 天线发射的信号处理能力，天线单元 111和 112A〜112C都是一对双极化天线； 假定 UE1到天线单元的路损从小到大排序为： 112B 、 112C, 112A, 111 , 那 么 UE1到天线单元 112B的路损的倒数与 112A/112C/111的路损的倒数总和的 差值超过第一预设阈值， 则确定 112B向 UE1的提供服务。 由于所述 UE1具 有 4天线发射的信号处理能力， 所述控制器 14依此继续判断 112C是否也可 以作为所述 UE1的服务天线单元。若所述控制器 14确定 112C为所述 UE1的 服务天线单元。
可选的， 在线性域， 所述控制器 14确定向所述用户设备提供服务的天线 单元时，还可以根据所述天线单元接收所述用户设备发送信号的接收功率，来 确定向所述用户设备提供服务的天线单元。若在当前 UE接收处理能力的最大 范围以内，所述天线单元的接收功率按照从大到小进行排序，若所述天线单元 与所述天线单元排序后的其它天线单元的接收功率的和的比值超过第二预设 阈值， 所述控制器 14确定所述天线单元为向所述用户设备提供服务的天线单 元。
可选的， 在线性域， 所述控制器 14确定向所述用户设备提供服务的天线 单元时，还可以根据所述用户设备的下行接收功率，来确定向所述用户设备提 供服务的天线单元。 在当前 UE接收处理能力的最大范围以内， 所述用户设备 的接收多个天线单元的下行接收功率按照从大到小进行排序，若所述用户设备 接收所述天线单元的下行接收功率与所述排序后的用户设备接收的其它天线 单元的接收功率的和的比值超过第三预设阈值， 所述控制器 14确定所述天线 单元为向所述用户设备提供服务的天线单元。
当然， 在非线性域， 所述控制器 14也可以根据所述用户设备的信号状态 来确定向所述用户设备提供服务的天线单元， 本发明实施例对此不再具体贅 述。
602、 所述控制器根据用户设备的天线能力， 确定用户设备是否需要多个 天线协同传输。
由于 UE1有能力接收两个辅助天线发射的信号，则控制器 14确定向 UE1 进行 112B和 112C的协同传输， 同时确定相应的传输模式。
603、 所述控制器向所述用户设备配置天线资源， 将所述配置的天线资源 信息发送给所述基带资源池。 控制器 14在确定 UE1需要进行协同传输时， 将 112B和 112C的天线资 源配置给 UE1 , 并将所述配置的天线资源信息发送给所述基带资源池 13。 所 述配置的天线资源信息包括 112B和 112C的天线物理端口， 或 112B和 112C 的逻辑端口 , 以及传输模式等信息。
604、 所述基带资源池根据所述配置的天线资源， 将所述配置的天线资源 映射到对应的射频资源池的物理端口。
然后所述基带资源池 13根据所述配置的天线资源信息， 将所述 112B和 112C的逻辑端口映射到所述 112B和 112C的物理端口上， 即映射到射频资源 池 12中 112B和 112C对应的物理端口上。
605、 所述射频资源池根据所述映射的物理端口， 控制所述物理端口对应 的天线单元向所述用户设备提供通信服务。
可选的，如图 2所示，所述射频资源池 12可以包括小功率射频资源池 121 和大功率射频资源池 122。所述小功率射频资源池 121和大功率射频资源池 122 的一端都分别和所述基带资源池 13相连，另一端分别和相应的天线单元相连， 而所述基带资源池 13和所述控制器 14相连。 其中， 所述小功率射频资源池 121中包括小功率射频模块， 所述大功率射频资源池 122中包括大功率射频模 块。所述大功率射频模块用于覆盖宏站的整体范围， 而所述小功率射频模块用 于覆盖重点区域。 通常， 小功率射频模块的功率小于 5W, 大功率射频模块的 功率大于 5W。
采用上述的分布式天线阵列系统， 由于辅助天线设置于能够与宏站覆盖 范围内的天线单元进行协作的位置，这使得辅助天线距离宏站较近， 不需要大 范围的光纤连接，从而降低了分布式天线阵列系统的部署成本， 同时由于辅助 天线设置于能够与宏站覆盖范围内的天线单元进行协作的位置，从而能够使得 宏站范围内用户设备能够获得多个天线的协作传输服务，进而能够提升信号质 量并降低干扰， 进一步改善用户体验和提升网络容量。
本领域普通技术人员可以理解： 实现上述方法实施例的全部或部分步骤 可以通过程序指令相关的硬件来完成， 前述的程序可以存储于一计算机可读 取存储介质中， 该程序在执行时， 执行包括上述方法实施例的步骤； 而前述 的存储介质包括： ROM、 RAM, 磁碟或者光盘等各种可以存储程序代码的介 以上所述， 仅为本发明的具体实施方式， 但本发明的保护范围并不局限 于此， 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内， 可轻易 想到变化或替换， 都应涵盖在本发明的保护范围之内。 因此， 本发明的保护 范围应所述以权利要求的保护范围为准。

Claims

权 利 要 求 书
1、一种分布式天线阵列系统，所述天线阵列系统包括多只天线单元、 射频资源池 ( 12) 、 基带资源池 ( 13 ) 以及控制器 ( 14) ， 所述多只天 线单元和所述射频资源池 ( 12) 相连， 所述射频资源池 ( 12) 还和所述 基带资源池 ( 13 ) 相连， 所述基带资源池 ( 13 ) 还和所述控制器 ( 14) 相连， 其特征在于， 所述多只天线单元包括宏站天线 （ 111 ) 和多只辅助 天线； 所述宏站天线 （ 111 )设置于所述宏站上， 所述多只辅助天线分布 设置于能够与宏站覆盖范围内的天线单元进行协作的位置；
所述控制器 （ 14) , 用于根据所述宏站覆盖范围下的用户设备的信 号状态， 确定向所述用户设备提供服务的天线单元， 并根据所述用户设 备的收发能力， 确定是否对所述用户设备进行多个天线协同传输及相应 的传输模式， 然后向所述基带资源池 （ 13 ) 发送向所述用户设备配置的 天线资源信息， 使得基带资源池 ( 13 ) 和射频资源池 ( 12) 控制配置的 天线资源向所述用户设备提供通信服务；
所述基带资源池 （ 13 ) 和所述射频资源池 （ 12) , 用于根据所述控 制器 （ 14) 发送的配置的天线资源信息控制相应的天线单元向所述用户 设备提供通信服务。
2、 根据权利要求 1所述的系统， 其特征在于， 所述用户设备的信号 状态为所述用户设备到覆盖所述用户设备的天线单元的路损； 或
所述用户设备的信号状态为所述用户设备的下行接收功率； 或 所述用户设备的信号状态为所述天线单元接收所述用户设备发送的 上行信号的接收功率。
3、 根据权利要求 2所述的系统， 其特征在于， 所述辅助天线为低轮 廓天线或近端为大下倾角的天线。
4、根据权利要求 2所述的系统， 其特征在于， 所述辅助天线为单列、 双列或多列极化天线。
5、 根据权利要求 1-4任一项所述的系统， 其特征在于， 所述射频资 源池 ( 12) 包括小功率射频资源池 ( 121 ) 和大功率射频资源池（ 122) 。
6、 根据权利要求 5所述的系统， 其特征在于， 所述辅助天线设置于 所述宏站周围 100米内。
7、 一种通过分布式天线阵列系统进行通信的方法， 其特征在于， 该 方法包括： 控制器根据宏站覆盖范围下的用户设备的信号状态， 确定向所述用 户设备提供服务的天线单元；
所述控制器根据所述用户设备的收发能力， 确定所述用户设备是否 需要多个天线协同传输及相应的传输模式；
所述控制器向所述用户设备配置天线资源， 将所述配置的天线资源 信息发送给所述基带资源池；
所述基带资源池根据所述配置的天线资源， 将所述配置的天线资源 映射到对应的射频资源池的物理端口；
所述射频资源池根据所述映射的物理端口， 控制所述物理端口对应 的天线单元向所述用户设备提供通信服务。
8、 根据权利要求 7所述的方法， 其特征在于， 所述天线单元包括宏 站天线和多只辅助天线， 所述多只辅助天线分布设置于能够与宏站覆盖 范围内的天线单元进行协作的位置。
9、 根据权利要求 7或 8所述的方法， 其特征在于， 所述用户设备的 信号状态为所述用户设备到覆盖所述用户设备的天线单元的路损；
或
所述用户设备的信号状态为所述用户设备的下行接收功率； 或 所述用户设备的信号状态为所述天线单元接收所述用户设备发送的 上行信号的接收功率。
10、 根据权利要求 9所述的方法， 其特征在于， 所述辅助天线为低 轮廓天线或近端为大下倾角的天线。
1 1、 根据权利要求 9所述的方法， 其特征在于， 所述辅助天线可以 为单列、 双列或多列的极化天线。
12、 根据权利要求 7-1 1 任一项所述的方法， 其特征在于， 所述射频 资源池包括小功率射频资源池和大功率射频资源池。
PCT/CN2012/082720 2012-10-10 2012-10-10 通过分布式天线阵列系统进行通信的方法及阵列系统 WO2014056162A1 (zh)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CN201280001431.9A CN103988445B (zh) 2012-10-10 2012-10-10 通过分布式天线阵列系统进行通信的方法及阵列系统
JP2015535948A JP6355110B2 (ja) 2012-10-10 2012-10-10 分散アンテナアレイシステムによる通信方法、アレイシステムおよびコントローラ
CN201710386303.5A CN107135018A (zh) 2012-10-10 2012-10-10 通过分布式天线阵列系统进行通信的方法及阵列系统
EP12886186.1A EP2897302B1 (en) 2012-10-10 2012-10-10 Method for communication through distributed antenna array system and array system
PCT/CN2012/082720 WO2014056162A1 (zh) 2012-10-10 2012-10-10 通过分布式天线阵列系统进行通信的方法及阵列系统
US14/683,868 US9906351B2 (en) 2012-10-10 2015-04-10 Method of communication with distributed antenna array system and array system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2012/082720 WO2014056162A1 (zh) 2012-10-10 2012-10-10 通过分布式天线阵列系统进行通信的方法及阵列系统

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US14/683,868 Continuation US9906351B2 (en) 2012-10-10 2015-04-10 Method of communication with distributed antenna array system and array system

Publications (1)

Publication Number Publication Date
WO2014056162A1 true WO2014056162A1 (zh) 2014-04-17

Family

ID=50476873

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/082720 WO2014056162A1 (zh) 2012-10-10 2012-10-10 通过分布式天线阵列系统进行通信的方法及阵列系统

Country Status (5)

Country Link
US (1) US9906351B2 (zh)
EP (1) EP2897302B1 (zh)
JP (1) JP6355110B2 (zh)
CN (2) CN103988445B (zh)
WO (1) WO2014056162A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107078766A (zh) * 2014-11-06 2017-08-18 康普技术有限责任公司 在电信系统中的通信链路之间分配带宽

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170132258A (ko) 2015-03-30 2017-12-01 존 메짤링구아 어쏘시에이츠, 엘엘씨 위치에 대한 모바일 서비스를 포함하는 네트워크 서비스를 제공하기 위한 시스템, 방법, 및 제조
KR102353333B1 (ko) * 2015-07-20 2022-01-19 삼성전자 주식회사 다중 안테나 선택 기법 및 장치
US10079437B2 (en) 2015-09-28 2018-09-18 The United States Of America, As Represented By The Secretary Of The Army Distributed antenna array
KR102473757B1 (ko) * 2016-06-20 2022-12-05 주식회사 케이티 ＬＴＥ 셀 ｓｉｚｅ를 １００ 킬로미터 이상 확장할 수 있는 장치 및 방법
CN110100468A (zh) * 2017-09-29 2019-08-06 华为技术有限公司 接入点设备及通信方法
KR102106105B1 (ko) * 2017-12-18 2020-05-28 주식회사 케이티 기지국 및 이에 의한 셀 커버리지의 확장 방법
CN110430591B (zh) * 2019-08-30 2022-10-14 西南电子技术研究所（中国电子科技集团公司第十研究所） 基带资源池智能部署与重构方法
CN113806060A (zh) * 2020-06-15 2021-12-17 中兴通讯股份有限公司 信息处理方法和射频单元、通信节点、电子设备、介质
CN114401035B (zh) * 2022-01-21 2024-04-26 中国电子科技集团公司第五十四研究所 一种基于星上处理的信关站处理资源池调度方法
CN115987393B (zh) * 2022-12-01 2024-07-19 中国电子科技集团公司第二十七研究所 一种基于基带资源池的中远距离卫星信号传输方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102340783A (zh) * 2007-09-21 2012-02-01 电信科学技术研究院 一种实现小区组网的方法及系统
CN102450048A (zh) * 2009-05-27 2012-05-09 京瓷公司 无线通信系统、无线终端、无线基站和无线通信方法
CN102545989A (zh) * 2010-12-17 2012-07-04 华为技术有限公司 用于分布式天线系统的通信方法、装置和系统
WO2012124715A1 (en) * 2011-03-11 2012-09-20 Sharp Kabushiki Kaisha Communication methods and base stations using the same

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6703976B2 (en) * 2001-11-21 2004-03-09 Lockheed Martin Corporation Scaleable antenna array architecture using standard radiating subarrays and amplifying/beamforming assemblies
US20040157645A1 (en) * 2003-02-12 2004-08-12 Smith Adrian David System and method of operation an array antenna in a distributed wireless communication network
US20110215985A1 (en) * 2004-06-10 2011-09-08 Raysat Antenna Systems, L.L.C. Applications for Low Profile Two Way Satellite Antenna System
JP5475669B2 (ja) * 2007-10-04 2014-04-16 アップル インコーポレイテッド セルセグメント内での空間ビームの形成
KR101704984B1 (ko) * 2008-05-09 2017-02-08 애플 인크. 셀룰러 네트워크에서의 안테나 빔 형성을 지원하기 위한 시스템 및 방법
CN102217141A (zh) 2008-11-14 2011-10-12 夏普株式会社 天线装置和基站装置
JP5066594B2 (ja) * 2010-07-27 2012-11-07 株式会社エヌ・ティ・ティ・ドコモ 無線通信装置及び無線通信方法
EP2482582B1 (en) * 2011-01-26 2013-01-16 Alcatel Lucent Base station, method of operating a base station, terminal and method of operating a terminal
KR101767997B1 (ko) * 2011-06-24 2017-08-14 삼성전자 주식회사 직교 주파수 분할 다중 접속 이동통신 시스템을 기반으로 하는 분산 안테나 시스템에서 하향링크 간섭 측정 방법 및 장치
US9270346B2 (en) * 2011-12-02 2016-02-23 Apple Inc. Methods for operating wireless electronic devices in coordinated multipoint transmission networks
CN102882004B (zh) 2012-06-29 2016-08-03 华为技术有限公司 一种电磁耦极子天线
US10070396B2 (en) * 2014-03-07 2018-09-04 Telefonaktiebolaget Lm Ericsson (Publ) Method and arrangement for inter-cell interference coordination
US20160190707A1 (en) * 2014-12-29 2016-06-30 Electronics And Telecommunications Research Institute Antenna structure based on millimeter wave and operation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102340783A (zh) * 2007-09-21 2012-02-01 电信科学技术研究院 一种实现小区组网的方法及系统
CN102450048A (zh) * 2009-05-27 2012-05-09 京瓷公司 无线通信系统、无线终端、无线基站和无线通信方法
CN102545989A (zh) * 2010-12-17 2012-07-04 华为技术有限公司 用于分布式天线系统的通信方法、装置和系统
WO2012124715A1 (en) * 2011-03-11 2012-09-20 Sharp Kabushiki Kaisha Communication methods and base stations using the same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2897302A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107078766A (zh) * 2014-11-06 2017-08-18 康普技术有限责任公司 在电信系统中的通信链路之间分配带宽
US11539404B2 (en) 2014-11-06 2022-12-27 Commscope Technologies Llc Allocation of bandwidth among communication links in distributed antenna system

Also Published As

Publication number Publication date
CN103988445A (zh) 2014-08-13
JP6355110B2 (ja) 2018-07-11
US20150215104A1 (en) 2015-07-30
EP2897302B1 (en) 2018-04-04
US9906351B2 (en) 2018-02-27
EP2897302A1 (en) 2015-07-22
EP2897302A4 (en) 2015-09-16
CN103988445B (zh) 2017-06-20
JP2015537424A (ja) 2015-12-24
CN107135018A (zh) 2017-09-05

Similar Documents

Publication Publication Date Title
WO2014056162A1 (zh) 通过分布式天线阵列系统进行通信的方法及阵列系统
EP2679058B1 (en) Configuring power distribution within cooperation areas of cellular communication networks
CN102075223B (zh) 一种分布式天线系统的发射天线位置布局的方法
US10020866B2 (en) Wireless communication node with adaptive communication
EP3716399B1 (en) Antenna apparatus and communication apparatus
US20200229003A1 (en) Access Point Device and Communication Method
CN109842890B (zh) 信号测量方法、相关装置及系统
EP4018563A1 (en) Apparatus, method and computer program for determining beamforming direction
CN115462005A (zh) 信道测量和干扰测量的获取和报告
JP2018182660A (ja) 無線通信装置及び再送制御方法
WO2015187130A1 (en) Adaptive antenna response at the ue for lte-advanced and beyond
US11303334B2 (en) Communication method and related device
CN102595432B (zh) 一种室内多系统共用的上、下行信号处理方法及设备
CN106028362B (zh) 一种室内高密度网络的天线云节点通讯实现方法及系统
JP2015520587A (ja) Ｍｉｍｏ信号送受信装置及びこのような装置を少なくとも１つ備えたシステム
GB2459131A (en) Locating nodes of a telecommunications system
CN103731846A (zh) 一种定向天线与全向天线结合的分布式天线系统
CN104022986B (zh) 一种降低多天线干扰的方法和装置
CN103165984B (zh) 一种移动通信系统及其多波束天线装置
CN103997750A (zh) 一种室内多系统共用的下行信号处理方法及设备
Boldi et al. Multi antenna techniques to improve energy efficiency in LTE radio access network
WO2024166765A1 (ja) 通信中継システム、通信中継方法及びプログラム
CN102857286A (zh) 用于发送下行公共信道的方法和系统
CN106888460A (zh) 一种消除全双工上行信道干扰的布网方案
CN103327532A (zh) 下行多小区多用户联合传输的方法与装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12886186

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2015535948

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2012886186

Country of ref document: EP