WO2004068876A1 - Dispositif de relais de communication, procede de communication et systeme de communication mobile - Google Patents

Dispositif de relais de communication, procede de communication et systeme de communication mobile Download PDF

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Publication number
WO2004068876A1
WO2004068876A1 PCT/CN2004/000084 CN2004000084W WO2004068876A1 WO 2004068876 A1 WO2004068876 A1 WO 2004068876A1 CN 2004000084 W CN2004000084 W CN 2004000084W WO 2004068876 A1 WO2004068876 A1 WO 2004068876A1
Authority
WO
WIPO (PCT)
Prior art keywords
communication device
terminal
relay communication
base station
relay
Prior art date
Application number
PCT/CN2004/000084
Other languages
English (en)
French (fr)
Inventor
Shihe Li
Feng Li
Guiliang Yang
Original Assignee
Da Tang Mobile Communications Equipment Co., Ltd.
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 Da Tang Mobile Communications Equipment Co., Ltd. filed Critical Da Tang Mobile Communications Equipment Co., Ltd.
Priority to JP2005518618A priority Critical patent/JP2006516840A/ja
Priority to EP04706118A priority patent/EP1589772A4/en
Publication of WO2004068876A1 publication Critical patent/WO2004068876A1/zh
Priority to US11/192,678 priority patent/US20060003760A1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24Cell structures
    • H04W16/26Cell enhancers or enhancement, e.g. for tunnels, building shadow
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/155Ground-based stations
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/24Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2603Arrangements for wireless physical layer control
    • H04B7/2606Arrangements for base station coverage control, e.g. by using relays in tunnels

Definitions

  • the invention relates to a relay communication technology of a mobile communication system, in particular to a relay communication device for a mobile communication system and a relay communication method thereof, and a mobile communication system using the relay communication device, belonging to time division duplex or frequency division duplex Industrial mobile communication systems.
  • typical devices include core networks, base station controllers (or wireless network managers), wireless base stations, and user terminals.
  • base station controllers or wireless network managers
  • wireless base stations or wireless base stations
  • user terminals In time division duplex (such as
  • a device that has both the function of a user terminal and the function of a wireless base station is called a relay device.
  • the relay equipment has a particularly important use in the following environments: Areas where it is difficult to set up optical cables or wires with the base station controller; Due to natural disasters such as war, earthquake, floods, etc., the base stations have been erected or the optical cables or wires connecting them Damaged when the wireless mobile communication system in this area is paralyzed; On trains and coaches, when the compartments are closed, it is difficult for mobile communication users to communicate with the external mobile communication system; In large buildings, because the radio wave penetration ability cannot reach Areas with many users and difficult to communicate.
  • repeater In current mobile communication systems, repeater (repea ter) is used to improve coverage in areas with poor system coverage; in trains and other compartments, special terminal equipment (such as vehicle-mounted and dedicated terminals) is mainly used. And other methods to solve some problems; in large urban buildings, they are all new methods such as adding base stations or installing leaky antennas.
  • special terminal equipment will limit the use of user's private terminal, and the use of repeaters or newly added base stations, and the installation of leaky antennas requires the installation of cables, optical cables or microwave links, which is not flexible enough to implement. Summary of the invention
  • the purpose of the present invention is to overcome the shortcomings in the prior art, and provide a relay communication device, a communication method thereof, and a mobile communication system using the device and method.
  • the relay communication device can communicate with a terminal like a base station, and at the same time, it can One terminal communicates with the base station in the system, and does not need to set up cables or optical cables to achieve connection with the system. It has the characteristics of fast and flexible deployment.
  • the relay device of the present invention mainly includes: a terminal access function unit composed of an independent antenna and a feeder, a radio frequency transceiver, and a physical layer signal processing device, and an independent antenna and a feeder and a radio frequency.
  • the base station functional unit formed by the connection between the transceiver and the physical layer signal processing equipment includes a general control unit of the digital signal processor, a control bus and a high-speed data bus connecting the terminal access functional unit and the general control unit, and the base station functional unit and the general bus.
  • Signal Office After processing, the device outputs digital signals to the general control unit.
  • the base station functional unit completes the transmission and reception of wireless signals between the relay communication device and the mobile terminal.
  • the base station functional unit sends data from the general control unit to the mobile terminal, which in turn passes through the physical layer.
  • the signal processing equipment, RF transceiver, feeder and antenna are processed into wireless signals and sent to the air.
  • the wireless signals sent by the mobile terminal to the base station functional unit are processed by the antenna and feeder, RF transceiver, and physical layer signal processing equipment in order. It is then output to the main control unit as a digital signal.
  • the terminal access function unit includes: independent antenna and feeder, one or more radio frequency transceivers, one or more physical layer signal processing equipment, radio frequency transceiver and independent antenna and feeder
  • the physical layer signal processing equipment is connected to the radio frequency transceiver.
  • the radio frequency transceiver can work on at least one carrier and multiple time slots at the same time.
  • the physical layer signal processing equipment is composed of a dedicated chip ASIC and a programmable device. Physical layer signal processing in base station communication.
  • the functional units of the base station include: independent antennas and feeders, one or more radio frequency transceivers, and one or more physical layer signal processing equipment.
  • the radio frequency transceivers are connected to the independent antennas and feeders to complete the relay equipment and the subnet (base station functions Terminals in the area covered by the unit) Air interface physical layer signal processing between mobile user terminals.
  • the physical layer signal processing equipment is connected to the radio frequency transceiver.
  • the radio frequency transceiver can work on at least one carrier and multiple time slots at the same time.
  • the physical layer signal processing equipment is composed of an application specific chip (ASIC) and a programmable device, and completes the physical layer signal processing in communication with the mobile user terminal in the subnet.
  • ASIC application specific chip
  • the main control unit includes: multiple digital signal processors, control bus, high-speed data bus, terminal voice and data interface, and local monitoring terminal LMT interface.
  • the main control unit processes the high-level signaling of the terminal and the base station. According to the instructions issued by the mobile communication system, the main control unit realizes the configuration of the device and the management of the wireless resources in the subnet, and monitors and controls the operation of the entire device.
  • the main control unit has a control bus between the terminal access unit and the base station functional unit; the main control unit provides a high-speed data bus between the terminal access unit and the base station functional unit; the main control unit provides a signal exchange function to enable this subnet
  • the internal communication service can be connected to the mobile communication system without accessing the functional unit through the terminal, and the internal service can be completed to increase the capacity of the subnet.
  • the relay communication system communicates with the real terminal through the base station functional unit. Communication, and forward it to the mobile communication system through the terminal functional unit, and then return to the mobile communication system to complete the business communication in this subnet).
  • Physical layer signal processing equipment in terminal access functional unit and objects in base station functional unit Physical layer signal processing equipment can be implemented separately or combined together.
  • the base station functional unit supports terminal access of different wireless interface specifications.
  • the main control unit includes terminal voice and data interfaces, so that the equipment has the full functions of the terminal.
  • the main control unit includes interfaces to monitor and manage the local monitoring terminal LMT.
  • the digital signal processor is an MCU, DSP, or ASIC.
  • the communication method of the relay communication device of the present invention is specifically as follows:
  • the terminal access unit of the relay communication device searches for the base station, initiates an access request to the base station, the mobile communication network sends configuration information to the terminal access unit through the downlink channel of the base station, and the relay communication device Configure itself;
  • Relay communication equipment subnet provides services: After the relay communication equipment completes initialization, its terminal access unit maintains monitoring of the base station broadcast channel, and its base station functional unit uses the subnet broadcast channel and other necessary downlinks. A common channel that provides services to terminals in its coverage area;
  • the configuration information sent by the network to the terminal access unit through the downlink channel of the base station includes a carrier frequency, a maximum transmission power, a service capacity, and a time slot or code channel for transmitting a service to a neighboring base station.
  • the terminal searches for a downlink common channel of the subnet, and a signal of the downlink common channel comes from the relay communication device.
  • the terminal establishes, maintains, or releases a wireless connection with the relay communication device by using the wireless resources provided by the base station functional element of the relay communication device within the coverage area of the relay communication device. If the communication destination of the terminal is another terminal, and both terminals of the communication are in the same subnet, the relay communication device completes the signal exchange between the two terminals, which is related to the charging.
  • the information is transmitted to the base station through the terminal access unit of the relay communication device.
  • the relay communication device receives a signal of the terminal through a base station function base unit, reprocesses control information and service data therein, and accesses through the terminal.
  • the unit sends information to the base station, and simultaneously receives the information sent by the base station to the terminal through the terminal access unit, reprocesses the control information and service data therein, and sends the control information and service data to the terminal through the base station functional unit.
  • the mobile communication system using the relay communication device of the present invention includes at least one terminal, at least one base station, and also includes at least one relay communication device.
  • the relay communication device includes at least one terminal access unit and one base station functional unit, and covers a certain geographical area. Area, the terminal transmits and receives wireless signals with the base station functional unit of the relay communication device within the geographic area covered by the relay communication device, the base station can cover a certain geographic area, and the relay communication device communicates with all
  • the base stations transmit and receive wireless signals to each other, the terminals establish, maintain, or release wireless connections with the relay communication equipment within the geographic area covered by the relay communication equipment, and the relay communication devices establish, maintain, or release wireless connections with the base station within the geographic area covered by the base station.
  • the terminal searches for a signal sent by the relay communication device on a downlink common channel within a geographic area covered by the relay communication device, and considers the signal to be a signal sent by an ordinary base station.
  • the terminal may establish, maintain, or release a wireless connection by using a method of establishing, maintaining, or releasing a wireless connection with a common base station.
  • the relay communication device In the stage where the terminal and the relay communication device remain connected, the relay communication device is responsible for the communication between the two terminals according to the communication destination of the terminal, such as when the target terminal of the communication is in the subnet. Order, data processing and exchange; if the target terminal of the communication is not in the subnet, it is responsible for signaling, data processing and forwarding between the terminal and the base station information.
  • a time division duplex mobile communication system is taken as an example to introduce the working mode of the present invention.
  • the TD-SCDMA system of the third generation mobile communication has a multi-slot structure, and the uplink and downlink of each time slot can be set by the system.
  • the subnet provided by this relay communication device can be regarded as a cell in the mobile communication network, and the user terminal works in this subnet in the same way as in the mobile communication network. After the relay communication equipment is installed, it searches for nearby base stations and applies for access. When starting work, its base station functional unit cannot transmit signals.
  • the system will configure the relay communication equipment, configure its working carrier frequency, maximum transmit power level, service capacity, time slots or code channels for transmitting services to the base station, and other necessary parameters.
  • the relay communication equipment After the relay communication equipment is configured, the subnet starts to work, and will receive the broadcast and paging channels (BCCH and PCH) transmitted from the base station in the network through its terminal access unit, and all or part of the information of this channel can be used in The base station functional unit forwards it on the broadcast channel, or generates its own broadcast information and sends it out through the broadcast channel.
  • BCCH and PCH broadcast and paging channels
  • this subnet (relay communication equipment) will be regarded as a common base station and communicate in exactly the same way.
  • the working mode can be set as follows: Communication between terminals in the subnet (regardless of voice or data services) is exchanged within this relay communication device, and only the charging information is transmitted to the system without Transmit service data to increase system capacity.
  • the relay communication device For communication between terminals in the subnet and terminals outside the subnet (regardless of voice or data services), the relay communication device only plays the role of forwarding.
  • the slot (code channel) is forwarded to the neighboring base station and connected to the system through the neighboring base station, and its working mode is the same as that for ordinary services.
  • the device of the invention can arrange the antenna feeder system of the functional part of the base station in an area not covered by the mobile communication network, so that ordinary user terminals can obtain mobile communication services in the area; Areas where mobile communication services are urgently needed are quickly provided. It can also greatly improve the coverage of the system, so that mobile communication users on trains and coaches can freely communicate during travel; users in large buildings can easily obtain services.
  • FIG. 1 is a schematic diagram of setting up a relay communication device in a mobile communication network
  • FIG. 2 is a structural block diagram of a relay communication device according to the present invention.
  • Fig. 3 is a flowchart of the basic operation of the relay communication device of the present invention. Mode of Carrying Out the Invention
  • the distribution position of the relay communication device of the present invention when applied in a mobile communication system is shown in FIG. 1.
  • a part of conventional base stations 221, 222, 223, ..., 22 ⁇ in the system is connected to the base station controller 20 by wired or wireless means, and covers Certain area. Within these coverage areas, mobile communication services are realized. But in other areas, 231, 232,..., 23m, cannot be covered by conventional base stations.
  • the relay communication devices 241, 242, ..., 24k of the present invention are used in these areas.
  • the antennas of the terminal access units of these relay communication devices are erected in the area covered by the conventional base stations 222, 223, ..., 22 ⁇ ; and the relay communication
  • the antenna of the base station functional unit of the device covers the area that cannot be covered by the conventional base station, thereby forming subnetworks.
  • the user terminal works exactly the same in the coverage area of the subnet as in the coverage area of the conventional base station. It can be seen that the relay communication equipment has expanded and improved the coverage of the mobile communication network. Since the relay communication equipment can be installed on a moving body, such as on a train or a long-distance bus, a subnet is formed inside its closed compartment, which further increases the function of the mobile communication network.
  • 21 is a base station controller
  • 10 is a system network side.
  • the principle block diagram of the device of the present invention is shown in FIG. 2 and mainly includes: a terminal access functional unit 1, an independent antenna and a feeder 2, a radio frequency transceiver 3, a physical layer signal processing device 4, a base station functional unit 5, an independent antenna and a feeder 6.
  • RF transceiver 7.
  • Physical layer signal processing equipment 8.
  • General control unit 9.
  • the total control unit 9 communicates with the terminal through the high-speed data bus 12 and control bus 11.
  • the access function unit 1 is connected, and is connected to the base station function unit 5 through a high-speed data bus 12 and a control bus 11.
  • the terminal access function unit 1 completes the transmission and reception of wireless signals between the relay communication device and the mobile communication network.
  • the terminal access function unit 1 sends data from the overall control unit 9 to the mobile communication network, and in turn passes through the physical layer signal processing device 4,
  • the radio frequency transceiver 3, the antenna and the feeder 2 are processed into wireless signals and sent to the air.
  • the radio signals sent by the mobile communication network to the terminal access function unit 1 pass through the antenna and the feeder 2, the radio frequency transceiver 3, and the physical layer in order.
  • the signal processing device 4 outputs the digital signal to the overall control unit 9 after processing.
  • the base station functional unit 5 completes the wireless signal transmission and reception between the relay communication device and the mobile terminal.
  • the base station functional unit 5 sends data from the overall control unit 9 to the mobile terminal, and passes through the physical layer signal processing device 8, the radio frequency transceiver 7, and
  • the antenna and feeder 6 are processed into wireless signals and sent to the air.
  • the wireless signals sent by the mobile terminal to the base station functional unit 5 are processed by the antenna and feeder 6, RF transceiver 7, physical layer signal processing equipment 8 and processed as digital signals.
  • the form is output to the total control unit 9.
  • the terminal access function unit 1 includes: an independent antenna and a feeder line 2, one or more radio frequency transceivers 3, one or more physical layer signal processing devices 4, the radio frequency transceiver 3 is connected to the independent antenna and the feeder line 2, and a physical layer
  • the signal processing device 4 is connected to the radio frequency transceiver 3, and the radio frequency transceiver 3 can work on at least one carrier at the same time and work in multiple time slots.
  • the physical layer signal processing device 4 is composed of a dedicated chip AS IC and a programmable device to complete and mobile communication. Physical layer signal processing in conventional base station communication in the network.
  • the base station functional unit 5 includes: an independent antenna and a feeder line 6, one or more radio frequency transceivers 7, one or more physical layer signal processing devices 8, and the radio frequency transceiver 7 is connected to the independent antenna line and the feeder line 6 to complete the relay.
  • the physical layer signal processing device 8 is connected to the independent radio frequency transceiver 7, and the radio frequency transceiver 7 can work on at least one carrier and multiple time slots at the same time.
  • the physical layer signal processing device 8 is composed of a dedicated chip ASIC and a programmable device, and completes the physical layer signal processing in communication with the mobile user terminal in the subnet.
  • the total control unit 9 includes: multiple digital signal processors 10, control bus 1 1, high-speed data bus 12, terminal voice and data interface 1 3, 14, and local monitoring terminal LMT interface 15.
  • the general control unit 9 handles the high-level signaling of the terminal and the base station. According to the instructions issued by the mobile communication system, the general control unit 9 implements the configuration of the device and the management of the wireless resources in the subnet, and monitors and controls the operation of the entire device.
  • a control bus 11 between the access unit 1 and the base station functional unit 5.
  • the main control unit 9 provides a high-speed data bus 12 between the terminal access unit 1 and the base station functional unit 5.
  • the main control unit 9 provides a signal exchange function, so that the communication services in the subnet can be connected to the mobile communication system without the terminal access function unit, and the service communication in the subnet can be completed to increase the capacity of the subnet. That is, after the service information sent from the base station functional unit reaches the total control unit 9, it is returned to the target terminal directly through the base station functional unit through signal exchange, and the communication service between the terminal access functional unit and the mobile communication system is omitted.
  • the data loopback process saves this part of the wireless resources.
  • Provide terminal voice and data interfaces 1 3 and 14 so that the device has the full functions of the terminal, and provide an interface 15 for monitoring and managing the local monitoring terminal LMT.
  • the communication method using the relay communication device of the present invention is as follows:
  • the terminal access unit 1 of the relay communication device searches for a base station, and initiates an access request to the base station.
  • the network sends configuration information to the terminal access unit 1 of the relay communication device through the downlink channel of the base station, and the configuration information includes a carrier frequency, a maximum transmission power, and the like.
  • Relay The communication device configures itself with the configuration information.
  • Relay communication equipment provides subnet services. After the initialization is completed, the relay communication device maintains monitoring of the broadcast channel of the base station through the terminal access unit 1, and the base station function unit 5 uses the broadcast channel of the subnet and other necessary downlink common channels to cover its coverage area. Terminal provides services.
  • the terminal can search the downlink common channel of the subnet, and considers that the signal of the downlink common channel comes from a base station, that is, for the terminal, the relay communication device is An ordinary base station.
  • the terminal may use the wireless resources provided by the base station functional unit 5 of the relay communication device within the coverage area of the relay communication device to establish, maintain or release a wireless connection with the relay communication device.
  • the relay device has two working modes:
  • the communication destination of the terminal is an end user (destination terminal) in the subnet, that is, the destination terminal is also in the coverage area of the relay communication device and is communicating with the relay communication device.
  • the wireless connection is maintained, that is, the two communication terminals are in the subnet, then the relay communication device completes the signal exchange between the two terminals.
  • the information related to the billing can be communicated through the relay.
  • the base station functional unit 5 of the device is transmitted to a base station (a base station adjacent to the relay communication device) in the mobile communication system, but the service information may not be transmitted to the base station in the mobile communication system.
  • the relay communication device receives the signal of the source terminal through the base station function unit 5 and controls the signal from the source terminal. After the information and service data are reprocessed, the information is sent to the base station (the base station adjacent to the relay communication device) in the mobile communication system through the terminal access unit 1; at the same time, the terminal access unit 1 receives the base station and sends it to the destination terminal After reprocessing the control information and service data therein, the information is sent to the destination terminal through the base station function unit 5.
  • C. Relay equipment service ends. When the relay communication device no longer needs to cover its subnet area, the relay communication device sends information to the base station through the terminal access unit 1 to start the resource release process, the service ends, and the subnet is deleted.
  • the mobile communication system using the relay communication device of the present invention includes at least one terminal, at least one conventional base station, and also includes at least one relay communication device.
  • the relay communication device includes at least one terminal access unit and one base station functional unit, and covers a certain geographical area. region.
  • the terminal transmits and receives wireless signals to and from the base station functional unit 5 of the relay communication device within the geographic area covered by the relay communication device.
  • a conventional base station can cover a certain geographic area, and the relay communication device transmits and receives wireless signals to and from the conventional base station through the terminal access unit 1 within the geographic area covered by the conventional base station, and the terminal communicates with the relay communication device within the geographic area covered by the relay communication device.
  • To establish, maintain, or release a wireless connection the relay communication device establishes, maintains, or releases a wireless connection with a conventional base station within a geographic area covered by the conventional base station.
  • the terminal searches for a signal sent by the relay communication device on a downlink common channel within a geographic area covered by the relay communication device, and considers the signal to be a signal sent by an ordinary base station.
  • the terminal may establish, maintain, or release a wireless connection with a relay communication device by using a method of establishing, maintaining, or releasing a wireless connection with a common base station.
  • the relay communication device is different according to the communication destination of the terminal.
  • the target terminal of the communication is in the subnet, it is responsible for signaling, data processing, and communication between the two terminals. Exchange; and when the communication target terminal is not in the subnet, it is responsible for signaling, data processing, and exchange of information between the terminal and the base station.
  • the working mode of the relay communication device of the present invention is shown in FIG. 3.
  • the present invention uses a time division duplex mobile communication system as an example to introduce its working mode.
  • TD-SCDMA time division duplex mobile communication
  • the subnet provided by the relay communication device can be regarded as a cell in the mobile communication network, and the user terminal works in this subnet in the same way as in the mobile communication network.
  • Step 41 After the relay communication equipment is installed, it searches for a neighboring base station and applies for access. When starting work, its base station functional unit cannot transmit signals. First, its terminal access unit should search for neighboring base stations, apply for access like an ordinary terminal, and submit an application for the relay communication equipment when applying for access.
  • Step 42 After the access application is accepted by the system, the system will configure the relay communication device, configure its working carrier frequency, maximum transmit power level, service capacity, time slot or code channel for transmitting services with neighboring base stations, etc. And other required parameters.
  • Step 43 After the relay communication device obtains the configuration, the subnet starts to work, and will receive, through its terminal access unit, signals sent by neighboring base stations in the network through the broadcast and paging channels (BCCH and PCH), and may corresponding channels. All or part of the information on the broadcast channel is forwarded on the broadcast channel through its own base station functional unit, or its own broadcast information is generated and sent through the broadcast channel.
  • BCCH and PCH broadcast and paging channels
  • Step 44 The terminals in the coverage area of this subnet regard this subnet (relay communication equipment) as an ordinary base station and communicate in exactly the same manner. There may be two cases here: Step 45.
  • a relay communication device with a switching function its working mode can be set as follows: Communication (no sound or data) between terminals in the same subnet are exchanged in this relay communication device. Only the charging information is transmitted to the system without transmitting service data to increase the system capacity.
  • Step 46 For communication between the terminals in the subnet and the terminals outside the subnet (not "i" or "data"), the relay communication device It only plays the role of forwarding. It forwards to the neighboring base station through the service time slot (code channel) with the neighboring base station, and connects to the system through the neighboring base station. Its working mode is the same as that of ordinary services.
  • Step 47 After one communication is over, the system or the relay communication device will release resources for use by other users.
  • the present invention describes a technical feature related to a relay communication device in combination with a time division duplex mobile communication system and taking TD-SCDMA, one of the third generation mobile communication standards, as an example.
  • the technical features can also be applied to systems of other time division duplex or frequency division duplex mobile communication standards.

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  • Computer Networks & Wireless Communication (AREA)
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Description

接力通信设备、 通信方法及其移动通信系统 技术领域
本发明涉及一种移动通信系统的接力通信技术, 特別是一种用于移 动通信系统的接力通信设备及其接力通信方法和使用该接力通信设备 的移动通信系统, 属于时分双工或频分双工移动通信系统领域。 发明背景
在第三代移动通信系统中,典型的设备包括核心网、基站控制器(或 者称无线网络管理器)、 无线基站和用户终端等大类。 在时分双工 (如
TD-SCDMA系统)或频分双工移动通信系统中, 既具有用户终端的功能, 又具有无线基站功能的设备称之为接力设备。 接力设备在如下环境下有 特别重要的用途: 与基站控制器之间架设光缆或电线比较困难的地区; 由于战争、 地震、 水灾等自然灾害, 造成已经架设好的基站或连接它们 的光缆、 电线损坏,使得此地区无线移动通信系统瘫痪的时候; 在火车、 长途汽车上,车厢密闭,移动通信用户难以和外边移动通信系统通信时; 在大建筑物内, 由于电波穿透能力达不到而出现用户较多又难以通信的 地区。 在目前的移动通信系统中, 在系统覆盖比较差的地区是使用转发 器(repea ter )来改善覆盖; 在火车汽车等车厢内, 则主要是用特殊的 终端设备(如车载、 使用专用终端)等方法来解决部分问题; 在城市大 建筑物内, 则都是新增加基站或者架设泄漏式天线等手段。 使用特殊终 端设备会限制用户私人终端的使用场合, 而使用转发器或新增加基站、 架设泄漏天线等方式需要架设电缆、 光缆或微波链路, 实现起来不够灵 发明内容
本发明的目的在于克服现有技术中的不足, 提供一种接力通信设备 及其通信方法和使用该设备、 方法的移动通信系统, 接力通信设备可以 象基站一样与终端进行通信, 同时又可以象一个终端一样与系统中的基 站进行通信, 而不需要架设电缆、 光缆来实现与系统的连接, 具有部署 快捷灵活的特点。
本发明是通过以下技术方案实现的, 本发明的接力设备主要包括: 由独立天线及馈线、 射频收发信机、 物理层信号处理设备连接构成的终 端接入功能单元, 由独立天线及馈线、 射频收发信机、 物理层信号处理 设备连接构成的基站功能单元, 包括数字信号处理器的总控制单元, 连 接终端接入功能单元与总控制单元的控制总线与高速数据总线, 连接基 站功能单元与总控制单元的控制总线与高速数据总线; 终端接入功能单 元完成接力设备与移动通信网之间的无线信号收发, 终端接入功能单元 发送来自总控制单元的数据给移动通信网络, 是依次经过物理层信号处 理设备、 射频收发信机处理后变成无线信号通过馈线及天线发送到空 中, 移动通信网络发送给终端接入功能单元的无线信号在依次经过天线 及馈线、 射频收发信机、 物理层信号处理设备处理后以数字信号的形式 输出到总控制单元; 基站功能单元完成接力通信设备与移动终端之间的 无线信号收发, 基站功能单元发送来自总控制单元的数据给移动终端, 是依次经过物理层信号处理设备、 射频收发信机、 馈线及天线处理后变 成无线信号发送到空中, 移动终端发送给基站功能单元的无线信号在依 次经过天线及馈线、 射频收发信机、 物理层信号处理设备处理后以数字 信号的形式输出到总控制单元。
终端接入功能单元包括: 独立天线及馈线、 一个或多个射频收发信 机、 一个或多个物理层信号处理设备, 射频收发信机与独立天线及馈线 相连, 物理层信号处理设备与射频收发信机相连, 射频收发信机能同时 在至少一个载波并多时隙工作, 物理层信号处理设备由专用芯片 ASIC、 可编程器件构成, 完成和移动通信网中常规基站通信中的物理层信号处 理。
基站功能单元包括: 独立天线及馈线, 一个或多个射频收发信机、 一个或多个物理层信号处理设备, 射频收发信机与独立天线及馈线相 连, 完成接力设备和本子网中 (基站功能单元覆盖区域内的终端)移动 用户终端之间的空中接口物理层信号处理, 物理层信号处理设备与射频 收发信机相连, 射频收发信机能同时在至少一个载波并多时隙工作。 物 理层信号处理设备由专用芯片 (ASIC )和可编程器件构成, 完成和本子 网中移动用户终端通信中的物理层信号处理。
总控制单元包括: 多个数字信号处理器、控制总线、 高速数据总线、 终端话音及数据接口、 本地监测终端 LMT接口。 总控制单元处理终端和 基站的高层信令, 总控制单元根据移动通信系统下达的指令, 实现设备 的配置和子网内的无线资源管理, 对整个设备运行实行监测和控制。 总 控制单元具有和终端接入单元及基站功能单元之间的控制总线; 总控制 单元提供和终端接入单元及基站功能单元之间的高速数据总线; 总控制 单元提供信号交换功能, 使本子网内的通信业务可以不通过终端接入功 能单元而连接至移动通信系统, 就可以完成内部的业务, 以提高子网的 容量(在通常情况下, 接力通信系统通过基站功能单元与真正的终端进 行通信, 并通过终端功能单元转发到移动通信系统, 再经过移动通信系 统返回后, 完成本子网内业务通信)。 提供终端话音及数据接口, 以使 本设备具有终端的完整功能, 并提供监测、 管理本地监测终端 LMT的接 p。
终端接入功能单元内的物理层信号处理设备和基站功能单元内的物 理层信号处理设备可单独也可合并在一起实现。
基站功能单元支持不同无线接口规范的终端接入。 总控制单元包括 终端话音及数据接口, 以使本设备具有终端的完整功能。 总控制单元包 括监测、 管理本地监测终端 LMT 的接口。 数字信号处理器为 MCU、 DSP 或 ASIC。
本发明的接力通信设备的通信方法, 具体如下:
A.初始化: 接力通信设备的终端接入单元搜索到基站, 向所述基站 发起接入请求, 移动通信网络通过该基站的下行信道向终端接入单元发 送配置信息, 接力通信设备根据配置信息对自身进行配置;
B.接力通信设备子网提供服务: 所述接力通信设备在完成初始化 后, 其终端接入单元保持对所述基站广播信道的监听, 其基站功能单元 通过子网的广播信道和其他必要的下行公共信道, 为在其覆盖区域的终 端提供服务;
C.接力通信设备服务结束: 当不再需要接力通信设备来实现对该区 域的覆盖后, 所述接力通信设备通过终端接入单元向所述基站发送信 息, 启动资源释放的过程, 服务结束, 删除子网。
在执行方法 A之前, 将接力通信设备中基站功能单元上的独立天线 及馈线部分置于期望接力通信设备覆盖的区域内, 并将接力通信设备中 终端接入单元上的天线及馈线部分置于移动通信网络所能覆盖的地理 区域内。
方法 A中 , 网络通过所述基站的下行信道向所述的终端接入单元发 送的配置信息包括载频、 最大发射功率、 业务容量、 与邻近基站之间传 输业务的时隙或者码道。
在方法 B中, 在所述接力通信设备的覆盖区域内, 终端搜索到该子 网的下行公共信道, 所述的下行公共信道的信号来自接力通信设备, 终 端在所述接力通信设备覆盖区域内, 利用接力通信设备的基站功能 元 提供的无线资源与接力通信设备建立、 保持或释放无线连接。 如所 ί£终 端的通信目的地是另一个终端, 且通信的两个终端均在同一子网内, 则 所述的接力通信设备完成对所述两个终端间信号的交换, 与计费相 的 信息通过所述接力通信设备的终端接入单元传送给基站。 如所述的终端 通信目的地是子网外的用户, 则所述的接力通信设备通过基站功能卑元 接收所述终端的信号, 将其中的控制信息和业务数据重新处理后, 通过 终端接入单元把信息发给所述基站, 同时通过终端接入单元接收所述基 站发给终端的信息, 将其中的控制信息和业务数据重新处理后, 通过基 站功能单元发给所述终端。
采用本发明的接力通信设备的移动通信系统, 包括至少一个终端、 至少一个基站, 还包括至少一个接力通信设备, 接力通信设备至少包括 一个终端接入单元和一个基站功能单元, 并覆盖一定的地理区域, 终端 在接力通信设备覆盖的地理区域内与接力通信设备的基站功能单元相 互收发无线信号,基站可覆盖一定的地理区域, 接力通信设备在基站覆 盖的地理区域内通过终端接入单元与所述基站相互收发无线信号, 终端 在接力通信设备覆盖的地理区域内与接力通信设备建立、 保持或释放无 线连接, 接力通信设备在基站覆盖的地理区域内与基站建立、 保持或释 放无线连接。
终端在接力通信设备覆盖的地理区域内搜索到所述接力通信设备 在下行公共信道上发送的信号, 并认为此信号是普通基站发送的信号。 终端可以用与普通基站建立、 保持或释放无线连接的方法来建立、 保持 或释放无线连接。
在终端与接力通信设备保持连接的阶段, 接力通信设备根据终端通 信目的地的不同, 如通信的目标终端在子网内时, 负责两个终端间的信 令、 数据处理和交换; 如通信的目标终端不在本子网内时, 负责对所述 终端和所述基站信息间的信令、 数据处理和转发。
以时分双工移动通信系统为例介绍本发明的工作方式。 如第三代移 动通信的 TD-SCDMA 系统具有多时隙结构, 每个时隙的上下行均是可以 由系统设定的。 以 TD-SCDMA标准为例, 此接力通信设备所提供的子网 可以看作移动通信网内的一个小区, 用户终端在此子网中的工作方式和 在移动通信网中的没有差别。 接力通信设备安装完毕, 搜索邻近基站, 申请接入。 开始工作时, 其基站功能单元是不能发射信号的。 它首先要 由其终端接入单元搜索邻近基站, 如普通终端一样申请接入, 在接入时 提出此接力通信设备工作申请。 此申请被系统所接受后, 系统将为此接 力通信设备进行配置, 配置其工作载波频率、 最大发射功率电平、 业务 容量、 与基站之间传输业务的时隙或者码道等等必须的参数。 接力通信 设备在获得配置后, 子网开始工作, 将通过其终端接入单元接收来自网 络中基站所发射的广播及寻呼信道(BCCH及 PCH ), 并可以将此信道的 全部或部分信息在自己的基站功能单元广播信道上转发出去, 或者生成 自己的广播信息通过广播信道发出去。 对此子网覆盖区域的终端, 将视 此子网 (接力通信设备) 为一个普通基站, 用完全相同的方式通信。 对 具有交换功能的接力通信设备, 工作方式可以设置为: 在子网内终端之 间的通信(不论话音或者数据业务)均在此接力通信设备内交换, 而仅 仅向系统传输计费信息而不传输业务数据, 以增加系统容量; 对子网内 终端和子网外终端之间的通信 (不论话音或者数据业务), 则本接力通 信设备只起转发的作用, 通过与邻近基站之间的业务时隙 (码道)转发 到邻近基站, 并通过邻近基站连接至系统, 其工作方式和实现普通业务 时相同。 当一次通信结束后, 系统或者接力通信设备将释放资源, 为其 它用户使用。 本发明具有实质性特点和显著进步, 本发明的设备可以将基站功能 部分的天馈线系统布置在移动通信网络没有覆盖到的区域, 使普通用户 终端可以在该地区获得移动通信服务; 也可以在急需提供移动通信服务 的地区迅速提供服务。 还可以使系统的覆盖状况大大改善, 使火车、 长 途汽车上的移动通信用户可以在旅行中自由地通信; 使大建筑物内的用 户方便地获得服务。 附图简要说明
图 1为移动通信网中设置接力通信设备的示意图;
图 2为本发明的接力通信设备结构框图;
图 3本发明的接力通信设备基本工作流程图。 实施本发明的方式
本发明的接力通信设备在移动通信系统中应用时的分布位置如图 1 所示, 系统中一部分常规基站 221 , 222 , 223 , …, 22η通过有线或者 无线方式和基站控制器 20 连接, 并覆盖一定地区。 在这些覆盖区内, 实现移动通信服务。 但在另一些地区 231 , 232 , …, 23m, 是常规基站 所无法覆盖的。 在这些地区使用本发明的接力通信设备 241, 242 , …, 24k , 这些接力通信设备的终端接入单元的天线架设在常规基站 222 , 223 , ··· , 22η覆盖的区域内; 而接力通信设备的基站功能单元的天线则 覆盖常规基站所无法覆盖的区域, 从而形成一个个子网络。 用户终端在 子网络覆盖区域内和在常规基站覆盖区域内的工作方式完全相同。 可见 接力通信设备扩大和改善了移动通信网的覆盖。 由于接力通信设备可以 安装在移动体上, 如在火车、 长途汽车上, 在其密闭车厢内部组成子网, 更增加了移动通信网的功能。 图中 21是基站控制器, 10是系统网络侧。 本发明的设备原理方框图如图 2所示, 主要包括: 终端接入功能单 元 1、 独立天线及馈线 2、 射频收发信机 3、 物理层信号处理设备 4、 基 站功能单元 5、 独立天线及馈线 6、 射频收发信机 7、 物理层信号处理设 备 8、 总控制单元 9、 数字信号处理器 10、 控制总线 11、 高速数据总线 12 , 总控制单元 9通过高速数据总线 12和控制总线 11与终端接入功能 单元 1相连, 并通过高速数据总线 12和控制总线 11与基站功能单元 5 相连。
终端接入功能单元 1完成接力通信设备与移动通信网之间的无线信 号收发, 终端接入功能单元 1发送来自总控制单元 9的数据给移动通信 网络, 在依次经过物理层信号处理设备 4、 射频收发信机 3、 天线及馈 线 2处理后变成无线信号发送到空中, 移动通信网络发送给终端接入功 能单元 1 的无线信号在依次经过天线及馈线 2、 射频收发信机 3、 物理 层信号处理设备 4处理后以数字信号的形式输出到总控制单元 9。
基站功能单元 5 完成接力通信设备与移动终端之间的无线信号收 发, 基站功能单元 5发送来自总控制单元 9的数据给移动终端, 在依次 经过物理层信号处理设备 8、 射频收发信机 7、 天线及馈线 6处理后变 成无线信号发送到空中, 移动终端发送给基站功能单元 5的无线信号在 依次经过天线及馈线 6、 射频收发信机 7、 物理层信号处理设备 8处理 后以数字信号的形式输出到总控制单元 9。
终端接入功能单元 1 包括: 独立天线及馈线 2、 一个或多个射频收 发信机 3、 一个或多个物理层信号处理设备 4, 射频收发信机 3与独立 天线及馈线 2相连, 物理层信号处理设备 4与射频收发信机 3相连, 射 频收发信机 3能同时在至少一个载波上且多时隙工作, 物理层信号处理 设备 4由专用芯片 AS IC、 可编程器件构成, 完成和移动通信网中常规基 站通信中的物理层信号处理。 基站功能单元 5包括: 独立天线及馈线 6 , —个或多个射频收发信 机 7、 一个或多个物理层信号处理设备 8, 射频收发信机 7与独立夭线 及馈线 6相连, 完成接力通信设备和本子网中移动用户终端之间空咋接 口的物理层信号处理, 物理层信号处理设备 8与独立射频收发信机 7相 连, 射频收发信机 7能同时在至少一个载波上且多时隙工作, 物理层信 号处理设备 8 由专用芯片 ASIC和可编程器件构成, 完成和本子网中移 动用户终端通信中的物理层信号处理。
总控制单元 9 包括: 多个数字信号处理器 1 0、 控制总线 1 1、 高速 数据总线 12、 终端话音及数据接口 1 3、 14、 本地监测终端 LMT接口 15。 总控制单元 9处理终端和基站的高层信令, 总控制单元 9根据移动通信 系统下达的指令, 实现设备的配置和子网内的无线资源管理, 对整个设 备运行实行监测和控制, 并具有和终端接入单元 1及基站功能单元 5之 间的控制总线 11。总控制单元 9提供和终端接入单元 1及基站功能单元 5之间的高速数据总线 12。 总控制单元 9提供信号交换功能, 使本子网 内的通信业务可以不通过终端接入功能单元连接到移动通信系统, 就可 以完成本子网内的业务通信, 以提高子网的容量。 即从基站功能单元发 过来的业务信息到达总控制单元 9后, 经信号交换就直接通过基站功能 单元返回给目标终端, 省略了通过终端接入功能单元与移动通信系统之 间这一段的通信业务数据环回的过程, 从而节省了这部分的无线资源。 提供终端话音及数据接口 1 3、 14 , 以使本设备具有终端的完整功能, 并 提供监测、 管理本地监测终端 LMT的接口 15。
采用本发明的接力通信设备进行通信的方法具体如下:
A.初始化: 所述接力通信设备的终端接入单元 1搜索到基站, 向该 基站发起接入请求。 网络通过该基站的下行信道向接力通信设备的终端 接入单元 1发送配置信息, 配置信息包括载频、 最大发射功率等。 接力 通信设备 居配置信息对自身进行配置。
B.接力通信设备提供子网服务。 初始化完成后, 所述接力通信 i殳备 通过终端接入单元 1保持对所述基站广播信道的监听, 基站功能单元 5 通过子网的广播信道和其他必要的下行公共信道, 为在其覆盖区域的终 端提供服务。
在所述接力通信设备的覆盖区域内, 终端可以搜索到该子网的下行 公共信道, 并认为所述的下行公共信道的信号来自一个基站, 即对终端 而言, 所述的接力通信设备就是一个普通基站。 终端可在所述接力通信 设备覆盖区域内利用接力通信设备的基站功能单元 5提供的无线资源与 接力通信设备建立、 保持或释放无线连接。 此时根据终端通信的目的地 不同, 接力设备有两种工作模式:
第一, 所述的终端 (源终端)通信目的地是子网内的终端用户 (目 的终端), 即该目的终端也在所述接力通信设备的覆盖区域内并正与所 述的接力通信设备保持无线连接, 即通信的两个终端均在所述子网内, 则所述的接力通信设备完成对所述两个终端间信号的交换, 此时与计费 相关的信息是可以通过接力通信设备的基站功能单元 5传送给移动通信 系统内的基站的 (与接力通信设备邻近的基站), 但业务信息可以不传 递到移动通信系统内的该基站。
第二, 所述的终端 (源终端)通信目的地是子网外的终端用户 (目 的终端), 则所述的接力通信设备通过基站功能单元 5 接收所述源终端 的信号, 对其中的控制信息和业务数据重新处理后, 通过终端接入单元 1把信息发给移动通信系统内的基站(与接力通信设备邻近的基站); 同 时通过终端接入单元 1接收该基站发给所述目的终端的信息, 对其中的 控制信息和业务数据重新处理后, 通过基站功能单元 5发给所述目的终 端。 C.接力设备服务结束。 当不再需要由接力通信设备实现对其子网区 域的覆盖后, 所述接力通信设备通过终端接入单元 1向所述基站发送信 息, 启动资源释放的过程, 服务结束, 删除子网。
采用本发明接力通信设备的移动通信系统, 包括至少一个终端、 至 少一个常规基站, 还包括至少一个接力通信设备, 接力通信设备至少包 括一个终端接入单元和一个基站功能单元, 并覆盖一定的地理区域。 终 端在接力通信设备覆盖的地理区域内与接力通信设备的基站功能单元 5 相互收发无线信号。 常规基站可覆盖一定的地理区域, 接力通信设备在 常规基站覆盖的地理区域内通过终端接入单元 1与所述常规基站相互收 发无线信号, 终端在接力通信设备覆盖的地理区域内与接力通信设备建 立、 保持或释放无线连接, 接力通信设备在常规基站覆盖的地理区域内 与常规基站建立、 保持或释放无线连接。
所述终端在所述接力通信设备覆盖的地理区域内搜索到所述接力 通信设备在下行公共信道上发送的信号, 并认为此信号是普通基站发送 的信号。 所述终端可以用与普通基站建立、 保持或释放无线连接的方法 来建立、 保持或释放与接力通信设备的无线连接。
在所述终端与所述的接力通信设备保持连接的阶段, 接力通信设备 才艮据终端通信目的地不同, 当通信的目标终端在子网内时, 负责两个终 端间信令、 数据处理和交换; 和当通信目标终端不在子网内时, 负责所 述终端和所述基站信息的信令、 数据处理和交换。
本发明接力通信设备的工作方式如图 3所示, 本发明以时分双工移 动通信系统为例介绍其工作方式。 如在第三代移动通信 TD-SCDMA 系统 中,具有多时隙结构,每个时隙的上下行均可以由系统设定。以 TD-SCDMA 标准为例, 由接力通信设备所提供的子网可以看作移动通信网内的一个 小区, 用户终端在此子网中的工作方式和在移动通信网中没有差别。 步骤 41, 接力通信设备安装完毕, 搜索邻近基站, 申请接入。 开始 工作时, 其基站功能单元是不能发射信号的, 首先要由其终端接入单元 搜索邻近基站, 如普通终端一样申请接入, 在申请接入时提出本接力通 信设备工作申请。
步骤 42 , 接入申请被系统接受后, 系统将为此接力通信设备进行配 置, 配置其工作载波频率、 最大发射功率电平、 业务容量、 与邻近基站 之间传输业务的时隙或者码道等等必须的参数。
步骤 43 , 接力通信设备在获得配置后, 子网开始工作, 将通过其终 端接入单元接收来自网络中邻近基站通过广播及寻呼信道( BCCH及 PCH ) 所发送的信号, 并可以将相应信道上的信息全部或部分地通过自己的基 站功能单元在广播信道上转发出去, 或者生成自己的广播信息通过广播 信道发出去。
步骤 44 , 在此子网覆盖区域内的终端, 将此子网 (接力通信设备) 视为一个普通基站, 用完全相同的方式通信。 这里可能有两种情况: 步骤 45,对具有交换功能的接力通信设备,其工作方式可以设置为: 同子网内终端之间的通信(不 音或者数据)均在此接力通信设备内 交换, 而仅仅向系统传输计费信息而不传输业务数据,以增加系统容量; 步骤 46 , 对子网内终端和子网外终端之间的通信(不 "i 舌音或者数 据), 则本接力通信设备只起转发的作用, 通过与邻近基站之间的业务 时隙 (码道)转发到邻近基站, 并通过邻近基站连接至系统, 其工作方 式和普通业务相同。
步骤 47 , 当一次通信结束后, 系统或者接力通信设备将释放资源, 为其它用户使用。
本发明结合时分双工的移动通信系统并以第三代移动通信标准之一 的 TD-SCDMA 为例, 说明与接力通信设备相关的技术特征。 在本发明的 技术特征作适当等同变换后, 也可适用于其它时分双工或频分双工移动 通信标准的系统中。

Claims

权利要求书
1. 一种用于移动通信系统的接力通信设备, 包括总控制单元(9 ) 和基站功能单元 (5 ), 基站功能单元(5 ) 包括独立天线及馈线 (6 ), 总控制单元(9)通过高速数据总线 (12 ) 和控制总线 (11 ) 与基站功 能单元(5 )相连, 其特征在于还包括: 终端接入功能单元 (1), 终端 接入功能单元(1 ) 包括独立天线及馈线(2); 总控制单元(9)通过高 速数据总线 ( 12 )和控制总线 ( 11 ) 与终端接入功能单元 ( 1 )相连; 所述的终端接入功能单元(1 ) 完成接力通信设备与移动通信网之间的 无线信号收发, 所述的终端接入功能单元( 1 )将来自总控制单元( 9 ) 的数据处理成无线信号经独立天线及馈线 (2 )发送给移动通信网络, 所述的终端接入功能单元( 1 )还将独立天线及馈线( 2 )接收的、 来自 移动通信网络的无线信号处理成数字信号输出至总控制单元(9); 所述 的基站功能单元 (5 ) 完成接力通信设备与移动终端之间的无线信号收 发, 所述的基站功能单元(5 )将来自总控制单元(9) 的数据处理成无 线信号经天线及馈线 (6 )发送给移动终端, 所述的基站功能单元( 5 ) 还将天线及馈线 (6 )接收的、 来自移动终端的无线信号处理成数字信 号输出至总控制单元(9)。
2. 根据权利要求 1 所述的用于移动通信系统的接力通信设备, 其 特征是: 终端接入功能单元(1 ) 包括: 一个或多个射频收发信机( 3) 和一个或多个物理层信号处理设备( 4 ); 射频收发信机( 3 ) 与所迷的 独立天线及馈线(2)相连, 物理层信号处理设备(4) 与射频收发信机
( 3)相连, 射频收发信机(3)能同时在至少一个载波上且多时隙工作; 物理层信号处理设备(4 ) 完成和移动通信网中常规基站通信中的¼理 层信号处理; 来自总控制单元(9) 的数据依次经过物理层信号处理设 备( 4 )、 射频收发信机( 3 )处理成无线信号送独立天线及馈线( 2 )发 射, 独立天线及馈线(2 )接收的无线信号依次经过射频收发信机(3 ) 和物理层信号处理设备(4 )处理成数字信号送所述的总控制单元(9 )。
3. 根据权利要求 1 所述的用于移动通信系统的接力通信设备, 其 特征是, 基站功能单元(5 ) 包括: 一个或多个射频收发信机(7 )和一 个或多个物理层信号处理设备( 8 ); 射频收发信机( 7 ) 与所述的独立 天线及 线( 6 )相连, 物理层信号处理设备 ( 8 ) 与射频收发信机( 7 ) 相连, 射频收发信机(7 ) 能同时在至少一个载波上且多时隙工作; 物 理层信号处理设备(8 ) 完成和本子网中移动用户终端通信中的物理层 信号处理; 来自总控制单元(9 ) 的数据依次经过物理层信号处理设备
( 8 )、 射频收发信机( 7 )处理成无线信号送独立天线及馈线( 6 )发射, 独立天线及馈线(6 )接收的无线信号依次经过射频收发信机(7 )和物 理层信号处理设备(8 )处理成数字信号送所述的总控制单元(9 )。
4. 根据权利要求 1 所述的用于移动通信系统的接力通信设备, 其 特征是,所述的总控制单元(9 )包括:一个或多个数字信号处理器(10 ), 处理终端和基站的高层信令, 包括, 根据移动通信系统下达的指令, 实 现接力通信设备的配置和子网内的无线资源管理, 对整个接力通信设备 的运行实行监测和控制, 提供本子网内终端间的通信业务数据的交换, 和子网内与子网外终端间的通信业务数据的转发。
5.根据权利要求 4所述的用于移动通信系统的接力通信设备, 其特 征是, 所述的总控制单元(9 )还包括终端话音及数据接口 (13、 14 ), 以使接力通信设备具有终端的完整功能。
6.根据权利要求 4所述的用于移动通信系统的接力通信设备, 其特 征是, 所述的总控制单元(9 )还包括监测、 管理本地终端的 LMT接口
7. 根据权利要求 4 所述的用于移动通信系统的接力通信设备, 其 特征是, 数字信号处理器 (1 0 ) 为 MCU、 DSP或专用集成电路。
8. 根据权利要求 1 所述的用于移动通信系统的接力通信设备, 其 特征是, 基站功能单元(5 ) 支持不同无线接口规范的终端接入。
9. 一种如权利要求 1 的用于移动通信系统的接力通信设备的通信 方法, 其特征在于包括以下处理步骤:
A.初始化: 接力通信设备的终端 '接入单元搜索到基站, 向所述基站 发起接入请求, 移动通信网络通过该基站的下行信道向终端接入单元发 送配置信息, 接力通信设备根据配置信息对自身进行配置;
B.接力通信设备子网提供服务: 所述接力通信设备在完成初始化 后, 其终端接入单元保持对所述基站广播信道的监听, 其基站功能单元 通过子网的广播信道和其他必要的下行公共信道, 为在其覆盖区域的终 端提供服务;
C.接力通信设备服务结束: 当不再需要接力通信设备来实现对该区 域的覆盖后, 所述接力通信设备通过终端接入单元向所述基站发送信 息, 启动资源释放的过程, 服务结束, 删除子网。
1 0.根据权利要求 9 所述的用于移动通信系统的接力通信设备的通 信方法, 其特征是, 在执行方法 A之前, 将接力通信设备中基站功能单 元上的独立天线及馈线部分置于期望接力通信设备覆盖的区域内, 并将 接力通信设备中终端接入单元上的天线及馈线部分置于移动通信网络 所能覆盖的地理区域内。
1 1.根据权利要求 9 所述的用于移动通信系统的接力通信设备的通 信方法, 其特征是, 方法 A中, 网络通过所述基站的下行信道向所述的 终端接入单元发送的配置信息包括载频、 最大发射功率、 业务容量、 与 邻近基站之间传输业务的时隙或者码道。
12.根据权利要求 9 所述的用于移动通信系统的接力通信设备的通 信方法, 其特征是, 所述方法 B中, 为所述接力通信设备覆盖区域内的 终端提供服务包括: 终端搜索到该子网的下行公共信道, 所述的下行公 共信道的信号来自接力通信设备, 终端利用接力通信设备的基站功能单 元提供的无线资源与接力通信设备建立、 保持或释放无线连接; 在所述 终端的通信目的地是另一个与其处于同一子网内的终端时, 由所述接力 通信设备完成对所述两个终端间信号的交换, 与计费相关的信息通过所 述接力通信设备的终端接入功能单元传送给所述的基站; 在所述终端的 通信目的地是子网外的用户时, 所述的接力通信设备通过基站功能单元 接收所述终端的信号, 将其中的控制信息和业务数据重新处理后, 通过 终端接入单元将信息转发给所述的基站, 同时通过终端接入单元接收所 述基站发给终端的信息, 将其中的控制信息和业务数据重新处理后, 通 过基站功能单元转发给所述终端。
1 3. 一种采用如权利要求 1的接力通信设备的移动通信系统, 包括 至少一个终端、 至少一个基站, 其特征在于, 还包括至少一个接力通信 设备, 接力通信设备至少包括一个终端接入单元和一个基站功能单元, 并覆盖一定的地理区域; 终端在接力通信设备覆盖的地理区域内与接力 通信设备的基站功能单元相互收发无线信号; 接力通信设备在邻近基站 覆盖的地理区域内通过终端接入单元与该邻近基站相互收发无线信号; 终端在接力通信设备覆盖的地理区域内与接力通信设备建立、 保持或释 放无线连接; 接力通信设备在该邻近基站覆盖的地理区域内与该邻近基 站建立、 保持或释放无线连接。
14. 如权利要求 13 所述的采用接力通信设备的移动通信系统, 其 特征是, 所述终端在所述接力通信设备覆盖的地理区域内搜索到所述接 力通信设备在下行公共信道上发送的信号, 并将此信号作为普通基站发 送的信号。
15. 如权利要求 13 所述的采用接力通信设备的移动通信系统, 其 特征是, 所述终端可以用与普通基站建立、 保持或释放无线连接的方法 来建立、 保持或释放无线连接。
16. 如权利要求 13 所述的采用接力通信设备的移动通信系统, 其 特征是, 在所述终端与所述的接力通信设备保持连接的阶段, 在通信的 目标终端与所述终端在同一子网内时, 接力通信设备负责目标终端与所 述终端间的信令、 数据处理和交换; 在通信的目标终端与所述终端分别 处在子网内与子网外时, 负责所述终端和所述基站间的信令、 数据处理 和转发。
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EP1589772A1 (en) 2005-10-26
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US20060003760A1 (en) 2006-01-05
EP1589772A4 (en) 2011-01-26
CN1431841A (zh) 2003-07-23

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