WO2015078399A1 - 无线覆盖的方法、装置和系统 - Google Patents

无线覆盖的方法、装置和系统 Download PDF

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Publication number
WO2015078399A1
WO2015078399A1 PCT/CN2014/092438 CN2014092438W WO2015078399A1 WO 2015078399 A1 WO2015078399 A1 WO 2015078399A1 CN 2014092438 W CN2014092438 W CN 2014092438W WO 2015078399 A1 WO2015078399 A1 WO 2015078399A1
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Prior art keywords
reference signal
rnti
groupid
module
cell
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PCT/CN2014/092438
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English (en)
French (fr)
Inventor
张文忠
谭源春
许瑞锋
郑伟
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北京信威通信技术股份有限公司
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Priority to US15/309,500 priority Critical patent/US20170150370A1/en
Publication of WO2015078399A1 publication Critical patent/WO2015078399A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/40—Connection management for selective distribution or broadcast
    • 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
    • H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
    • H04L5/0035—Resource allocation in a cooperative multipoint environment
    • 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
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • 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
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/18—Network planning tools
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/005—Transmission of information for alerting of incoming communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/08—Trunked mobile radio systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/20—Interfaces between hierarchically similar devices between access points

Definitions

  • the present invention relates to the field of wireless communications, and more particularly to a method, apparatus and system for wireless coverage.
  • the present invention provides a wireless coverage method, the method comprising:
  • the local cell and the neighboring cell simultaneously transmit a point-to-multipoint service by using a transmission mode with a UE reference signal;
  • the transmission of the point-to-multipoint service is scrambled using the same identifier.
  • the present invention also provides a transmitting device that transmits a point-to-multipoint service using a transmission mode with a UE reference signal, the device comprising:
  • a signal generating module configured to generate the UE reference signal by using the same identifier
  • a location mapping module configured to perform location mapping on the UE reference signal by using the same identifier
  • a scrambling module is configured to scramble the transmission of the point-to-multipoint service by using the same identifier.
  • the invention also proposes another method for wireless coverage, characterized in that the method comprises:
  • the same identifier is the same as the identifier used to generate the UE reference signal.
  • the invention also provides a receiving device, the device comprising:
  • a first module configured to receive a UE reference signal
  • a second module configured to perform data receiving processing by using the same identifier and a transmission mode with the UE reference signal
  • the same identifier is the same as the identifier used to generate the UE reference signal.
  • the invention proposes a wireless overlay system comprising a transmitting device and a receiving device as described above.
  • the local cell and the neighboring cell simultaneously transmit the point-to-multipoint service by using the transmission mode with the UE reference signal.
  • the UE reference signal generates and performs location mapping by using the same identifier, and the transmission of the point-to-multipoint service is scrambled by using the same identifier.
  • 1 is a schematic diagram of mapping of a downlink cell reference signal and a UE reference signal in a conventional CP
  • FIG. 2 is a schematic diagram of mapping of a downlink cell reference signal and a UE reference signal in an extended CP
  • FIG. 3 is a block diagram of a network architecture according to an embodiment of the present invention.
  • Figure 4 is a block diagram of the MBMS network architecture
  • FIG. 5 is a schematic structural diagram of a sending apparatus according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a receiving apparatus according to an embodiment of the present invention.
  • the MBMS technology can solve the problem of serious edge interference in the same frequency cell, but it needs the terminal.
  • the MBMS function is supported.
  • the MBMS-based cluster service cannot be obtained.
  • the present application discloses a wireless coverage method, which can solve the problem that the edge interference of the same frequency cell is serious, and does not require the terminal to support the MBMS function.
  • the present invention provides a wireless coverage method, in which: for a point-to-multipoint service, a transmission mode with a UE reference signal is simultaneously transmitted in a local cell and a neighboring cell; wherein the UE reference signal is generated and performed by using the same identifier. Location mapping; the transmission of the point-to-multipoint service is scrambled using the same identifier.
  • the receiving end receives the UE reference signal and performs data receiving processing through the same identification and transmission mode.
  • the above method can adopt TM7, TM8, TM9 or TM10 in LTE.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the point-to-multipoint service is transmitted using the antenna port 5 of the TM7.
  • the UE reference signal is related to PCI (Physical-layer Cell Identity) and Radio Network Temporary Identity (RNTI), and the antenna port 5
  • PCI Physical-layer Cell Identity
  • RNTI Radio Network Temporary Identity
  • the mapping location of the UE reference signal is related to PCI, where the PCI may be different in different cells.
  • the method provided by the present invention can be implemented by modifying the foregoing UE reference signal: in order to make the generation of the reference signal of the UE and the mapping of the pilot position no longer related to the PCI, in the present invention, other identifiers may be used to generate and guide the UE reference signal.
  • the frequency location mapping is as long as the identifier is the same for the point-to-multipoint service in the local cell and the neighboring cell, so that the UE reference signal generation and the pilot location mapping are consistent in each cell.
  • the group reference signal or the G-RNTI may be used to generate the port reference signal of the port 5 and the pilot position mapping.
  • the transmission of the downlink service is scrambled by using the GroupId or the G-RNTI. In this way, for a downlink service, the transmission mode with the above-mentioned UE reference signal can be simultaneously transmitted in the local cell and the neighboring cell.
  • the reference signal is generated and the pilot position mapping is specifically as follows:
  • x 1 (n+31) (x 1 (n+3)+x 1 (n)) mod2
  • x 2 (n+31) (x 2 (n+3)+x 2 (n+2)+x 2 (n+1)+x 2 (n)) mod2
  • the pilot position mapping of the UE reference signal of Port 5 adopts the following formula:
  • the distribution of Cell_RS (Cell Reference Signal) and UE_RS (UE Reference Signal) of two cells in the same-frequency network is as shown in the figure (so that the two-cell PCI is 0 and 1 in sequence), where si represents OFDM.
  • the symbol i is such that the PDSCH is transmitted on the symbol 3 (s3) to the symbol 13 (s13): on the symbol 4 (s4), the symbol 7 (s7), and the symbol 11 (s11), the cell has the interference of the Cell_RS of the neighboring cell; The remaining symbols can obtain the diversity gain of the neighbors.
  • the PDSCH is transmitted on the symbol 2 (s2) to the symbol 11 (s11): on the symbol 3 (s3), the symbol 6 (s6), and the symbol 9 (s9), the neighboring area exists in the cell.
  • the interference of Cell_RS; the remaining symbols can obtain the diversity gain of the neighbor.
  • the coverage performance of the proposed method is superior to conventional cell coverage.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • Point-to-multipoint data is transmitted using antenna port 7 (Antenna port 7) of TM8/TM9/TM10.
  • the sequence of antenna port 7 is generated as shown in the following formula:
  • the UE reference signal is received, and data reception processing is performed through the same identification and transmission mode.
  • the same identifier may be a function of the GroupId, the G-RNTI, or the GroupId or the G-RNTI.
  • the receiving end receives the cluster paging to obtain the cluster GroupId or G-RNTI belonging to the receiving end.
  • the same identifier is the same as the identifier used to generate the UE reference signal.
  • the network side adopts a centralized scheduling module to perform service scheduling and control on its lower cell.
  • the centralized scheduling module transmits the transmission mode with the UE reference signal to the cell 0 of the local cell; the UE reference signal uses the same identifier for generation and location mapping; and the downlink service transmission uses the same identifier for scrambling.
  • the centralized scheduling module includes a multi-cell/multicast coordination entity (MCE) and an MBMS gateway (GW), which control the intra-frequency base stations eNB0, eNB1 and eNB2.
  • MCE multi-cell/multicast coordination entity
  • GW MBMS gateway
  • the neighboring cell of eNB0 includes eNB1 and eNB2.
  • the SFBC transmission scheme of the LTE transmission mode TM7 may be used for transmission.
  • the centralized scheduling module transmits the UE eNB0, the neighboring cells eNB1, and the eNB2 in the transmission mode with the UE reference signal; the UE uses the same parameter G-RNTI in each cell to generate the UE reference signal; and uses the G-RNTI to the cluster.
  • the service transmission is physically scrambled.
  • the cluster group call service is scheduled on the MCE, and data is transmitted through the SYNC protocol to transmit data on the physical shared channel.
  • the local cell and the neighboring cell in the foregoing method may be physically neighboring cells, or may be logically adjacent cells (indicator factors such as signal strength, but not necessarily geographically adjacent).
  • the local cell and the neighboring cell are different sectors under the same base station; or may be in different base stations, and the inter-cell X2 interface between the cells transmits the related data of the point-to-multipoint service, including: scheduling information of the service (for example, allocation) The number of RBs and their locations, MCS, etc.) and the data of the service.
  • the GroupId and the G-RNTI can be delivered by the cluster paging or broadcasted.
  • the UE reference signal, the cell reference signal, and the point-to-multipoint service may be delivered by using a broadcast weight.
  • the present invention also provides a transmitting apparatus for implementing the above method, which uses a transmission mode with a UE reference signal to transmit a point-to-multipoint service, and the apparatus includes:
  • a signal generating module configured to generate a UE reference signal by using the same identifier
  • a location mapping module configured to perform location mapping on the UE reference signal by using the same identifier
  • a scrambling module is configured to scramble the transmission of the point-to-multipoint service by using the same identifier.
  • the transmission mode with the UE reference signal includes TM7, TM8, TM9, TM10 in LTE or any combination thereof.
  • the device further includes: an identity module, when the point-to-point service is a cluster service, and the groupId or the G-RNTI of the cluster service is the same in each cell, the identity module adopts the GroupId, G-RNTI or their The function acts as the same identifier.
  • the device further includes: a sending module, configured to send the UE reference signal and the point-to-multipoint service by using a broadcast weight; and use the cluster paging to deliver the GroupId or the G-RNTI.
  • the invention also provides a receiving device for implementing the above method, the device comprising:
  • a first module configured to receive a UE reference signal
  • a second module configured to perform data receiving processing by using the same identifier and a transmission mode with the UE reference signal
  • the same identifier is the same as the identifier used to generate the UE reference signal.
  • the same identifier is GroupId, G-RNTI or their function.
  • the apparatus may further include a third module, configured to acquire the GroupId or the G-RNTI by receiving the cluster paging.
  • the present invention further provides a wireless overlay system comprising the transmitting device as described in the third embodiment and the receiving device as described in the fourth embodiment.
  • the technical solution proposed by the present invention can solve the problem that the edge interference of the same frequency cell is serious, and the terminal does not need to support the MBMS function.
  • FIG. 5 is a schematic structural diagram of a transmitting apparatus according to an embodiment of the present invention.
  • the sending apparatus may be used to implement the service sending method provided in the foregoing embodiment. Specifically:
  • the transmitting device 500 may include: a communication unit 110, a memory 120 including one or more non-volatile computer readable storage media, an input unit 130, a display unit 140, a sensor 150, an audio circuit 160, a wireless communication unit 170, and a Or more than one processing core processor 180, and power supply 190 and other components.
  • the wireless communication unit 170 can be a WiFi (Wireless Fidelity) module. It will be understood by those skilled in the art that the structure of the transmitting device shown in FIG. 5 does not constitute a limitation on the transmitting device, and may include more or less components than those illustrated, or a combination of certain components, or different component arrangements.
  • the communication unit 110 can be used for transmitting and receiving information or receiving and transmitting signals during a call.
  • the communication unit 110 can be a network communication device such as an RF (Radio Frequency) circuit, a router, a modem, or the like.
  • RF Radio Frequency
  • the communication unit 110 is an RF circuit
  • the downlink information of the base station is received and processed by one or more processors 180.
  • data related to the uplink is transmitted to the base station.
  • RF circuits as communication units include, but are not limited to, an antenna, at least one amplifier, a tuner, one or more oscillators, a Subscriber Identity Module (SIM) card, a transceiver, a coupler, and a LNA (Low Noise Amplifier, low).
  • SIM Subscriber Identity Module
  • the communication unit 110 can also communicate with the network and other devices through wireless communication.
  • the wireless communication may use any communication standard or protocol, including but not limited to GSM (Global System of Mobile communication), GPRS (General Packet Radio Service), CDMA (Code Division Multiple Access). , Code Division Multiple Access), WCDMA (Wideband Code Division Multiple Access), LTE (Long Term Evolution), e-mail, SMS (Short Messaging Service), and the like.
  • the memory 120 can be used to store software programs and modules, and the processor 180 executes various functional applications and data processing by running software programs and modules stored in the memory 120.
  • the memory 120 can mainly include: a storage program area and a storage data area.
  • the storage program area can store an operating system, an application required for at least one function (such as a sound playing function, an image playing function, etc.).
  • the storage data area can store data (such as audio data, phone book, etc.) created according to the use of the transmitting device 500, and the like.
  • memory 120 can include high speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, memory 120 may also include a memory controller to provide access to memory 120 by processor 180 and input unit 130.
  • the memory 120 can be used to store the foregoing signal generating module, location mapping module, and scrambling module.
  • the input unit 130 can be configured to receive input numeric or character information, and generate and perform user settings and functions Can control the relevant keyboard, mouse, joystick, optical or trackball signal input.
  • the input unit 130 may include a touch-sensitive surface 131 and other input devices 132.
  • Touch-sensitive surface 131 also referred to as a touch display or trackpad, can collect touch operations on or near the user (eg, the user uses a finger, stylus, etc., on any touch-sensitive surface 131 or The operation in the vicinity of the touch-sensitive surface 131) and the corresponding connection means are driven according to a preset program.
  • the touch sensitive surface 131 can include two portions of a touch detection device and a touch controller.
  • the touch detection device detects the touch orientation of the user, and detects a signal brought by the touch operation, and transmits the signal to the touch controller.
  • the touch controller receives touch information from the touch detection device and converts it into contact coordinates, sends it to the processor 180, and can receive and execute commands from the processor 180.
  • the touch-sensitive surface 131 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves.
  • the input unit 130 can also include other input devices 132.
  • other input devices 132 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, joysticks, and the like.
  • the display unit 140 can be used to display information input by the user or information provided to the user and various graphical user interfaces of the transmitting device 500. These graphical user interfaces can be composed of graphics, text, icons, video, and any combination thereof.
  • the display unit 140 may include a display panel 141, and the display panel 141 may be configured in the form of an LCD (Liquid Crystal Display), an OLED (Organic Light-Emitting Diode), or the like.
  • the touch-sensitive surface 131 may cover the display panel 141, and when the touch-sensitive surface 131 detects a touch operation thereon or nearby, it is transmitted to the processor 180 to determine the type of the touch event, and then the processor 180 according to the touch event The type provides a corresponding visual output on display panel 141.
  • touch-sensitive surface 131 and display panel 141 are implemented as two separate components to implement input and input functions, in some embodiments, touch-sensitive surface 131 can be integrated with display panel 141 for input. And output function.
  • the Sensor 150 can include light sensors, motion sensors, and other sensors.
  • the light sensor can include an ambient light sensor and a proximity sensor. Wherein, the ambient light sensor can adjust the brightness of the display panel 141 according to the brightness of the ambient light.
  • the proximity sensor can turn off the display panel 141 and/or the backlight when the transmitting device 500 moves to the ear.
  • a gravity acceleration sensor can detect the magnitude of acceleration in each direction (typically three axes). The magnitude and direction of gravity can be detected at rest, which can be used to identify the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer attitude calibration), and to implement vibration recognition related functions (such as pedometer, tapping).
  • the transmitting device 500 can also be configured with a gyroscope, a barometer, a hygrometer, a thermometer, and a red Other sensors such as external sensors.
  • the audio circuit 160, the speaker 161, and the microphone 162 can provide an audio interface between the user and the transmitting device 500.
  • the audio circuit 160 can transmit the converted electrical signal of the audio data to the speaker 161 for conversion to the sound signal output by the speaker 161.
  • the microphone 162 converts the collected sound signal into an electrical signal, which is received by the audio circuit 160 and converted into audio data, and then processed by the processor 180, sent to the receiving device via the RF circuit 110, or the audio is transmitted.
  • the data is output to memory 120 for further processing.
  • the audio circuit 160 may also include an earbud jack to provide communication of the peripheral earphones with the transmitting device 500.
  • the wireless communication unit 170 can be a WiFi module.
  • WiFi is a short-range wireless transmission technology.
  • the user can utilize the wireless communication unit 170 to send and receive emails, browse web pages, access streaming media, and the like.
  • the wireless communication unit 170 provides the user with a wireless broadband Internet access function.
  • FIG. 5 shows the wireless communication unit 170. In a particular application, the transmitting device 500 may not include the wireless communication unit 170.
  • the processor 180 is a control center of the transmitting device 500.
  • the processor 180 connects various portions of the entire handset using various interfaces and lines, and executes each of the transmitting devices 500 by running or executing software programs and/or modules stored in the memory 120, and recalling data stored in the memory 120.
  • the function and processing data are used to perform overall monitoring of the transmitting device 500.
  • Processor 180 can include one or more processing cores.
  • the processor 180 can integrate an application processor and a modem processor.
  • the application processor mainly processes an operating system, a user interface, an application, and the like, and the modem processor mainly processes wireless communication. It can be understood that the processor 180 may not include a modem processor.
  • the power supply 190 can be logically coupled to the processor 180 through a power management system to manage functions such as charging, discharging, and power management through the power management system.
  • Power supply 190 may also include any one or more of a DC or AC power source, a recharging system, a power failure detection circuit, a power converter or inverter, a power status indicator, and the like.
  • the transmitting device 500 may further include a camera, a Bluetooth module, and the like, and details are not described herein.
  • the display unit of the transmitting device is a touch screen display.
  • One or more programs are stored in memory 120 and are configured to be executed by one or more processors 180. The one or more programs include instructions for performing the following operations:
  • the local cell and the neighboring cell simultaneously transmit a point-to-multipoint service using a transmission mode with a UE reference signal.
  • the UE reference signal generates and performs location mapping by using the same identifier, and the point to multiple points The transmission of the traffic is scrambled using the same identity.
  • FIG. 6 is a schematic structural diagram of a receiving apparatus according to an embodiment of the present invention.
  • the receiving device 600 can include a communication unit 210, a memory 220 including one or more non-volatile computer readable storage media, an input unit 230, a display unit 240, a sensor 250, an audio circuit 260, a wireless communication unit 270, One or more processing core processor 280, and power supply 290 and the like.
  • the input unit 230 includes a touch sensitive surface 231 and other input devices 232.
  • the display unit 240 includes a display panel 241.
  • the audio circuit 260 includes a speaker 261 and a microphone 262.
  • the memory 220 includes a first module and a second module and is configured to be executed by one or more processors 280.
  • the one or more programs include instructions for performing the following operations:
  • Data reception processing is performed using the same identification and a transmission mode having the UE reference signal.
  • the same identity is the same as the identity used to generate the UE reference signal.

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Abstract

本发明提出一种无线覆盖方法，其特征在于，该方法包括：本小区和邻小区同时采用有UE参考信号的传输模式传输点到多点业务；所述UE参考信号采用相同的标识生成和进行位置映射；所述点到多点业务的传输采用所述相同的标识进行加扰。

Description

无线覆盖的方法、装置和系统
本申请要求于2013年11月28日提交中国专利局、申请号为201310625778.7、发明名称为“一种无线覆盖的方法、装置和系统”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及无线通信领域，尤其涉及无线覆盖的方法、装置和系统。
背景技术
现有的集群通信采用正常的蜂窝覆盖网络。对于LTE系统，由于带宽较宽，对于LTE同频组网，则小区边缘的干扰很严重，导致其集群业务容量受限。3GPP正在研究采用MBMS(多媒体广播多播业务，Multimedia Broadcast Multicast Service)机制用于集群通信。
发明内容
针对上述问题，本发明提出一种无线覆盖方法，该方法包括：
本小区和邻小区同时采用有UE参考信号的传输模式传输点到多点业务；
所述UE参考信号采用相同的标识生成和进行位置映射；
所述点到多点业务的传输采用所述相同的标识进行加扰。
本发明还提出一种发送装置，该装置采用有UE参考信号的传输模式对点到多点业务进行传输，该装置包括：
信号生成模块，用于采用相同的标识生成所述UE参考信号；
位置映射模块，用于采用所述相同的标识对所述UE参考信号进行位置映射；
加扰模块，用于采用所述相同的标识对点到多点业务的传输进行加扰。
本发明还提出另外一种无线覆盖的方法，其特征在于，该方法包括：
对点到多点业务，接收UE参考信号；
利用相同的标识和有所述UE参考信号的传输模式进行数据接收处理；
所述相同的标识与用于生成所述UE参考信号的标识相同。
本发明还提出一种接收装置，该装置包括：
第一模块，用于接收UE参考信号；
第二模块，用于利用相同的标识和有所述UE参考信号的传输模式进行数据接收处理；
所述相同的标识与用于生成所述UE参考信号的标识相同。
最后本发明提出一种无线覆盖系统，该系统包括如上所述的发送装置和接收装置。
根据本发明实施例提出的方法，本小区和邻小区同时采用有UE参考信号的传输模式传输点到多点业务。其中该UE参考信号采用相同的标识生成和进行位置映射，并且该点到多点业务的传输采用所述相同的标识进行加扰。通过上述方案可以解决同频小区边缘干扰严重的问题，并且无需终端支持MBMS功能。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例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为常规CP中下行小区参考信号和UE参考信号的映射示意图；
图2为扩展CP中下行小区参考信号和UE参考信号的映射示意图；
图3为本发明实施的一种网络架构框图；
图4为MBMS网络架构框图；
图5为本发明实施例提供的发送装置的结构示意图；
图6为本发明实施例提供的接收装置的结构示意图。
具体实施方式
为使本发明的目的，技术方案和有益效果更加清楚明白，下文将结合附图对本发明的各技术方案作进一步详细说明。需要说明的是，在不冲突的情况下，本申请的各实施例和实施例中的技术特征可以任意互相组合。
利用MBMS技术可以很好地解决同频小区边缘干扰严重的问题，但是需要终端 支持MBMS功能，对于不支持MBMS功能的终端，无法获得基于MBMS的集群业务。本申请公开一种无线覆盖方法，可以解决同频小区边缘干扰严重的问题，同时无需终端支持MBMS功能。
本发明提出一种无线覆盖方法，该方法中：对一个点到多点业务，在本小区和邻小区同时采用有UE参考信号的传输模式进行传输；其中UE参考信号采用相同的标识生成和进行位置映射；所述点到多点业务的传输采用所述相同的标识进行加扰。接收端接收UE参考信号，通过相同的标识和传输模式进行数据接收处理。
上述方法可以采用LTE中的TM7、TM8、TM9或TM10。
实施例一：
采用TM7的天线端口5传输点到多点业务。
LTE系统中，根据《3GPP TS 36.211V11.4.0(2013-09)》协议，UE参考信号与PCI(Physical-layer Cell Identity，物理层小区标识)和无线网络临时标识(RNTI)有关，天线端口5(Antenna Port 5)的UE参考信号的映射位置与PCI有关，其中的PCI在不同小区可能有所不同。
本发明提出的方法可以通过对上述UE参考信号的修改来实现：为使UE参考信号的生成和导频位置的映射不再与PCI有关，本发明中可以采用其它标识进行UE参考信号生成和导频位置映射，只要该标识对于该点对多点业务在本小区和邻小区中相同即可，这样可以使得UE参考信号生成和导频位置映射在各小区一致。
例如，对于一个集群业务，且该集群业务在本小区和邻小区中的GroupId或者G-RNTI一致，则可以采用该GroupId或者G-RNTI对Port5的UE参考信号进行生成和导频位置映射。同样的，采用GroupId或G-RNTI对下行业务的传输进行加扰。这样，对一个下行业务，在本小区和邻小区就可以同时采用带有上述UE参考信号的传输模式进行传输。
考虑到最大限度利用现有标准，也可以先对GroupId或者G-RNTI做如下处理：GroupId＝GroupId mod 503，或者G-RNTI＝G-RNTI mod 503，再采用GroupId或者G-RNTI对Port5的UE参考信号进行生成和导频位置映射，具体为：
对Port5的UE参考信号进行生成采用如下公式：
Figure PCTCN2014092438-appb-000001
其中，
c(n)＝(x1(n+NC)+x2(n+NC))mod２
x1(n+31)＝(x1(n+3)+x1(n))mod2
x2(n+31)＝(x2(n+3)+x2(n+2)+x2(n+1)+x2(n))mod2
Figure PCTCN2014092438-appb-000002
或者
Figure PCTCN2014092438-appb-000003
对Port5的UE参考信号的导频位置映射采用如下公式：
Figure PCTCN2014092438-appb-000004
其中，
Figure PCTCN2014092438-appb-000005
Figure PCTCN2014092438-appb-000006
Figure PCTCN2014092438-appb-000007
Figure PCTCN2014092438-appb-000008
Figure PCTCN2014092438-appb-000009
vshift＝nGRNTImod3，或者，
vshift＝nGroupIdmod3
对于PDSCH的码字(codeword)q，令其比特流为
Figure PCTCN2014092438-appb-000010
其中，
Figure PCTCN2014092438-appb-000011
是码字q的比特数。对码字q的加扰公式如下：
Figure PCTCN2014092438-appb-000012
其中：
Figure PCTCN2014092438-appb-000013
或者
Figure PCTCN2014092438-appb-000014
空口分析：
参见附图1，同频组网下两个小区的Cell_RS(小区参考信号)和UE_RS(UE参考信号)的分布如图所示(令两小区PCI依次为0和1)，其中，si表示OFDM符号i，令PDSCH在符号3(s3)～符号13(s13)上传输：在符号4(s4)、符号7(s7)和符号11(s11)上，本小区存在邻区的Cell_RS的干扰；其余符号可以获得邻区的分集增益。
同样的，参照附图2，令PDSCH在符号2(s2)～符号11(s11)上传输：在符号3(s3)、符号6(s6)和符号9(s9)上，本小区存在邻区的Cell_RS的干扰；其余符号可以获得邻区的分集增益。
因此，本发明提出的方法的覆盖性能要优于常规小区覆盖。
实施例二：
采用TM8/TM9/TM10的天线端口7(Antenna port 7)传输点到多点的数据。天线端口7的序列生成见如下公式：
Figure PCTCN2014092438-appb-000015
Figure PCTCN2014092438-appb-000016
其中：
Figure PCTCN2014092438-appb-000017
或者
Figure PCTCN2014092438-appb-000018
天线端口7的频域映射公式保持不变：
PDSCH加扰
Figure PCTCN2014092438-appb-000019
Figure PCTCN2014092438-appb-000020
或者
Figure PCTCN2014092438-appb-000021
对一个点到多点业务，在接收端，接收UE参考信号，通过相同的标识和传输模式进行数据接收处理。其中，相同的标识可以是GroupId、G-RNTI或是GroupId或G-RNTI的函数，接收端接收集群寻呼获取属于该接收端的集群GroupId或G-RNTI。在本发明实施例中，该相同的标识和用于生成该UE参考信号的标识相同。
请参照附图3，网络侧采用集中调度模块，对其下小区进行业务调度和控制。其中，集中调度模块对本小区cell0采用有UE参考信号的传输模式进行传输；UE参考信号采用相同的标识进行生成和位置映射；下行业务的传输采用相同的标识进行加扰。
例如在MBMS架构下，请参考附图4。集中调度模块包括多小区/多播协调实体(MCE)和MBMS网关(GW)，其下控制同频基站eNB0、eNB1和eNB2。eNB0的邻小区包括eNB1和eNB2。
当一个集群组呼业务建立该MBMS区域时，可以采用LTE传输模式TM7的SFBC传输方案进行传输。集中调度模块对本小区eNB0、邻小区eNB1和eNB2采用有UE参考信号的传输模式进行传输；采用该业务在各小区中均相同的参数G-RNTI生产UE参考信号；采用该G-RNTI对该集群业务传输进行物理加扰。该集群组呼业务在MCE上调度，通过SYNC协议传输数据，在物理共享信道上发送数据。
上述方法中的本小区和邻小区可以是物理上位置相邻的小区，也可以是逻辑上相邻的小区(信号强度等指标因素，但地理位置上不一定相邻)。本小区与邻小区是同一基站下的不同扇区；也可以在不同基站下，此时小区间通过基站间X2接口传输点到多点业务的相关数据，包括：该业务的调度信息(例如分配的RB数及其位置、MCS等)和该业务的数据。
上述方法中，GroupId和G-RNTI可以通过集群寻呼下发，或者广播下发。UE参考信号、小区参考信号和所述点到多点业务可以采用广播权值下发。
实施例三
本发明还提出一种实现上述方法的发送装置，该装置采用有UE参考信号的传输模式对点到多点业务进行传输，该装置包括：
信号生成模块，用于采用相同的标识生成UE参考信号；
位置映射模块，用于采用所述相同的标识对UE参考信号进行位置映射；
加扰模块，用于采用所述相同的标识对点到多点业务的传输进行加扰。
其中，有UE参考信号的传输模式包括LTE中的TM7、TM8、TM9、TM10或其任意组合。
进一步的，该装置还包括：标识模块，当点到点业务为集群业务且该集群业务的GroupId或G-RNTI在各小区相同时，所述标识模块采用所述GroupId、G-RNTI或他们的函数作为所述相同的标识。进一步的，该装置还包括：发送模块，用于采用广播权值下发UE参考信号和所述点到多点业务；采用集群寻呼下发GroupId或G-RNTI。
实施例四
本发明还提出一种实现上述方法的接收装置，该装置包括：
第一模块，用于接收UE参考信号；
第二模块，用于利用相同的标识和有所述UE参考信号的传输模式进行数据接收处理；
所述相同的标识与用于生成所述UE参考信号的标识相同。
其中，相同的标识为GroupId、G-RNTI或他们的函数。
进一步的，该装置还可以包括第三模块，用于通过接收集群寻呼来获取GroupId或G-RNTI。
实施例五
本发明还提出一种无线覆盖系统，该系统包括如实施例三所述的发送装置和如实施例四所述的接收装置。
通过以上具体实施例可以看出，本发明提出的技术方案可以解决同频小区边缘干扰严重的问题，同时无须终端支持MBMS功能。
图5是本发明实施例提供的发送装置的结构示意图。参见图5，该发送装置可以用于实施上述实施例中提供的业务发送方法。具体来讲：
发送装置500可以包括：通信单元110、包括有一个或一个以上非易失性计算机可读存储介质的存储器120、输入单元130、显示单元140、传感器150、音频电路160、无线通信单元170、一个或者一个以上处理核心的处理器180、以及电源190等部件。该无线通信单元170可以是WiFi(Wireless Fidelity，无线保真)模块。本领域技术人员可以理解，图5中示出的发送装置结构并不构成对发送装置的限定，可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。
通信单元110可用于收发信息或通话过程中，信号的接收和发送。该通信单元110可以为RF(Radio Frequency，射频)电路、路由器、调制解调器、等网络通信设备。特别地，当通信单元110为RF电路时，将基站的下行信息接收后，交由一个或者一个以上处理器180处理。另外，将涉及上行的数据发送给基站。通常，作为通信单元的RF电路包括但不限于天线、至少一个放大器、调谐器、一个或多个振荡器、用户身份模块(SIM)卡、收发信机、耦合器、LNA(Low Noise Amplifier，低噪声放大器)、双工器等。此外，通信单元110还可以通过无线通信与网络和其他设备通信。所述无线通信可以使用任一通信标准或协议，包括但不限于GSM(Global System of Mobile communication，全球移动通讯系统)、GPRS(General Packet Radio Service，通用分组无线服务)、CDMA(Code Division Multiple Access，码分多址)、WCDMA(Wideband Code Division Multiple Access,宽带码分多址)、LTE(Long Term Evolution,长期演进)、电子邮件、SMS(Short Messaging Service，短消息服务)等。
存储器120可用于存储软件程序以及模块，处理器180通过运行存储在存储器120的软件程序以及模块，从而执行各种功能应用以及数据处理。存储器120可主要包括：存储程序区和存储数据区。其中，存储程序区可存储操作系统、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等。存储数据区可存储根据发送装置500的使用所创建的数据(比如音频数据、电话本等)等。此外，存储器120可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。相应地，存储器120还可以包括存储器控制器，以提供处理器180和输入单元130对存储器120的访问。在本发明实施例中，该存储器120可用于存储上述信号生成模块、位置映射模块和加扰模块。
输入单元130可用于接收输入的数字或字符信息，以及产生与用户设置以及功 能控制有关的键盘、鼠标、操作杆、光学或者轨迹球信号输入。具体地，输入单元130可包括：触敏表面131以及其他输入设备132。触敏表面131，也称为触摸显示屏或者触控板，可收集用户在其上或附近的触摸操作(比如，用户使用手指、触笔等任何适合的物体或附件在触敏表面131上或在触敏表面131附近的操作)，并根据预先设定的程式驱动相应的连接装置。触敏表面131可包括：触摸检测装置和触摸控制器两个部分。其中，触摸检测装置检测用户的触摸方位，并检测触摸操作带来的信号，将信号传送给触摸控制器。触摸控制器从触摸检测装置上接收触摸信息，并将它转换成触点坐标，再送给处理器180，并能接收处理器180发来的命令并加以执行。此外，可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触敏表面131。除了触敏表面131，输入单元130还可以包括其他输入设备132。具体地，其他输入设备132可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆等中的一种或多种。
显示单元140可用于显示由用户输入的信息或提供给用户的信息以及发送装置500的各种图形用户接口。这些图形用户接口可以由图形、文本、图标、视频和其任意组合来构成。显示单元140可包括显示面板141，可以采用LCD(Liquid Crystal Display，液晶显示器)、OLED(Organic Light-Emitting Diode,有机发光二极管)等形式来配置显示面板141。进一步的，触敏表面131可覆盖显示面板141，当触敏表面131检测到在其上或附近的触摸操作后，传送给处理器180以确定触摸事件的类型，随后处理器180根据触摸事件的类型在显示面板141上提供相应的视觉输出。虽然在图5中，触敏表面131与显示面板141是作为两个独立的部件来实现输入和输入功能，但是在某些实施例中，可以将触敏表面131与显示面板141集成而实现输入和输出功能。
传感器150可以包括：光传感器、运动传感器以及其他传感器。光传感器可包括：环境光传感器及接近传感器。其中，环境光传感器可根据环境光线的明暗来调节显示面板141的亮度。接近传感器可在发送装置500移动到耳边时，关闭显示面板141和/或背光。作为运动传感器的一种，重力加速度传感器可检测各个方向上(一般为三轴)加速度的大小。静止时可检测出重力的大小及方向，可用于识别手机姿态(比如横竖屏切换、相关游戏、磁力计姿态校准)、实现振动识别相关功能(比如计步器、敲击)等。发送装置500还可配置陀螺仪、气压计、湿度计、温度计、红 外线传感器等其他传感器。
音频电路160、扬声器161，传声器162可提供用户与发送装置500之间的音频接口。音频电路160可将接收到的音频数据转换后的电信号，传输到扬声器161，由扬声器161转换为声音信号输出。另一方面，传声器162将收集的声音信号转换为电信号，由音频电路160接收后转换为音频数据，再将音频数据经处理器180处理后，经RF电路110发送给接收装置，或者将音频数据输出至存储器120以便进一步处理。音频电路160还可能包括：耳塞插孔，以提供外设耳机与发送装置500的通信。
该无线通信单元170可以为WiFi模块。WiFi属于短距离无线传输技术。用户可以利用无线通信单元170收发电子邮件、浏览网页和访问流式媒体等。无线通信单元170为用户提供了无线的宽带互联网访问功能。虽然图5示出了无线通信单元170。在具体应用中，发送装置500可能不包括无线通信单元170。
处理器180是发送装置500的控制中心。该处理器180利用各种接口和线路连接整个手机的各个部分，通过运行或执行存储在存储器120内的软件程序和/或模块，以及调用存储在存储器120内的数据，执行发送装置500的各种功能和处理数据，从而对发送装置500进行整体监控。处理器180可包括一个或多个处理核心。处理器180可集成应用处理器和调制解调处理器。其中，应用处理器主要处理操作系统、用户界面和应用程序等，调制解调处理器主要处理无线通信。可以理解的是，上述处理器180中也可能不包括调制解调处理器。
电源190可以通过电源管理系统与处理器180逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。电源190还可以包括一个或一个以上的直流或交流电源、再充电系统、电源故障检测电路、电源转换器或者逆变器、电源状态指示器等任意组件。
尽管未示出，发送装置500还可以包括摄像头、蓝牙模块等，在此不再赘述。在本发明实施例中，发送装置的显示单元是触摸屏显示器。一个或者一个以上程序存储于存储器120中，且经配置以由一个或者一个以上处理器180执行。所述一个或者一个以上程序包含用于进行以下操作的指令：
本小区和邻小区同时采用有UE参考信号的传输模式传输点到多点业务。
其中，该UE参考信号采用相同的标识生成和进行位置映射，并且该点到多点 业务的传输采用所述相同的标识进行加扰。
图6为本发明实施例提供的接收装置的结构示意图。该接收装置600可以包括：通信单元210、包括有一个或一个以上非易失性计算机可读存储介质的存储器220、输入单元230、显示单元240、传感器250、音频电路260、无线通信单元270、一个或者一个以上处理核心的处理器280、以及电源290等部件。
该输入单元230包括：触敏表面231和其他输入设备232。该显示单元240包括显示面板241。该音频电路260包括：扬声器261和传声器262。
该通信单元210、存储器220、输入单元230、显示单元240、传感器250、音频电路260、无线通信单元270、一个或者一个以上处理核心的处理器280、电源290、触敏表面231、其他输入设备232、显示面板241、扬声器261和传声器262分别与上述通信单元110、存储器120、输入单元130、显示单元140、传感器150、音频电路160、无线通信单元170、一个或者一个以上处理核心的处理器180、电源190、触敏表面131、其他输入设备132、显示面板141、扬声器161和传声器162相同，此处就不再重复描述。
该存储器220包括：第一模块和第二模块，且经配置以由一个或者一个以上处理器280执行。所述一个或者一个以上程序包含用于进行以下操作的指令：
对点到多点业务，接收UE参考信号；
利用相同的标识和有所述UE参考信号的传输模式进行数据接收处理。
该相同的标识与用于生成所述UE参考信号的标识相同。
上述实施例仅仅是本发明一部分实施例，而不是全部的实施例。凡在本发明的精神和原则之内，本领域普通技术人员在没有做出创造性劳动前提下所作的任何修改、等同替换或改进等，均应属于本发明保护的范围之内。

Claims (25)

  1. 一种无线覆盖方法，其特征在于，该方法包括：
    本小区和邻小区同时采用有UE参考信号的传输模式传输点到多点业务；
    所述UE参考信号采用相同的标识生成和进行位置映射；
    所述点到多点业务的传输采用所述相同的标识进行加扰。
  2. 根据权利要求1所述的方法，其特征在于，所述有UE参考信号的传输模式(TM)包括：长期演进(LTE)中的TM7、TM8、TM9或TM10。
  3. 根据权利要求1所述的方法，其特征在于，当所述点到多点业务为集群业务，且该集群业务的GroupId或小区无线网络临时标识(G-RNTI)在本小区和邻小区相同时，所述相同的标识为所述GroupId、G-RNTI或所述GroupId或G-RNTI的函数。
  4. 根据权利要求3所述的方法，其特征在于，所述GroupId或G-RNTI的函数为GroupId mod 504，或G-RNTI mod 504。
  5. 根据权利要求4所述的方法，其特征在于，所述UE参考信号的生成采用如下公式：
    Figure PCTCN2014092438-appb-100001
    其中，
    Figure PCTCN2014092438-appb-100002
    或者
    Figure PCTCN2014092438-appb-100003
    UE参考信号的位置映射采用如下公式：
    Figure PCTCN2014092438-appb-100004
    其中，
    Figure PCTCN2014092438-appb-100005
    Figure PCTCN2014092438-appb-100006
    Figure PCTCN2014092438-appb-100007
    Figure PCTCN2014092438-appb-100008
    Figure PCTCN2014092438-appb-100009
    vshift＝nGRNTImod3，或者，
    vshift＝nGroupIdmod3
    对码字q采用如下公式加扰：
    Figure PCTCN2014092438-appb-100010
    其中：
    Figure PCTCN2014092438-appb-100011
    或者
    Figure PCTCN2014092438-appb-100012
  6. 根据权利要求4所述的方法， 其特征在于， 所述UE参考信号的生成采用如
    下公式：
    Figure PCTCN2014092438-appb-100013
    Figure PCTCN2014092438-appb-100014
    其中：
    Figure PCTCN2014092438-appb-100015
    或者
    Figure PCTCN2014092438-appb-100016
    UE参考信号的位置映射采用LTE中TM8/TM9/TM10的天线端口7的频域映射公式；
    对码字q采用如下公式加扰：
    Figure PCTCN2014092438-appb-100017
    Figure PCTCN2014092438-appb-100018
    或者
    Figure PCTCN2014092438-appb-100019
  7. 根据权利要求3所述的方法，其特征在于，所述GroupId或G-RNTI通过集群寻呼下发。
  8. 根据权利要求1所述的方法，其特征在于，所述UE参考信号和所述点到多点业务采用广播权值下发。
  9. 根据权利要求8所述的方法，其特征在于，小区参考信号采用广播权值下发。
  10. 根据权利要求1所述的方法，其特征在于，所述点到多点业务在物理下行共享信道(PDSCH)上传输。
  11. 根据权利要求1所述的方法，其特征在于，所述邻小区是与本小区物理上相邻的小区和/或与本小区逻辑上相邻的小区。
  12. 根据权利要求1～11任意一项所述的方法，其特征在于，所述点到多点业务通过上层网元集中调度。
  13. 根据权利要求1～11所述的方法，其特征在于，当所述本小区与邻小区在不同基站下时，所述点到多点业务的调度信息和业务数据通过X2接口传输。
  14. 根据权利要求1～11所述的方法，其特征在于，所述本小区与邻小区是同一基站下的不同扇区。
  15. 一种发送装置，其特征在于，该装置采用有UE参考信号的传输模式对点到多点业务进行传输，该装置包括：信号生成模块，位置映射模块，加扰模块；
    所述信号生成模块，用于采用相同的标识生成所述UE参考信号；
    所述位置映射模块，用于采用所述相同的标识对所述UE参考信号进行位置映射；
    所述加扰模块，用于采用所述相同的标识对点到多点业务的传输进行加扰。
  16. 根据权利要求15所述的装置，其特征在于，所述有UE参考信号的传输模式包括：LTE中的TM7、TM8、TM9或TM10。
  17. 根据权利要求15所述的装置，其特征在于，所述装置还包括：标识模块；
    当所述点到点业务为集群业务且该集群业务的GroupId或G-RNTI在本小区和邻小区相同时，所述标识模块采用所述GroupId、G-RNTI或GroupId或G-RNTI的函数作为所述相同的标识。
  18. 根据权利要求15所述的装置，其特征在于，该装置还包括：
    发送模块，用于采用广播权值下发所述UE参考信号和所述点到多点业务，采用集群寻呼下发所述GroupId或G-RNTI。
  19. 一种无线覆盖的方法，其特征在于，该方法包括：
    对点到多点业务，接收UE参考信号；
    利用相同的标识和有所述UE参考信号的传输模式进行数据接收处理；
    所述相同的标识与用于生成所述UE参考信号的标识相同。
  20. 根据权利要求19所述的方法，其特征在于，所述相同的标识为GroupId、G-RNTI或GroupId或G-RNTI的函数。
  21. 根据权利要求20所述的方法，其特征在于，进一步包括：
    利用接收集群寻呼来获取集群GroupId或G-RNTI。
  22. 一种接收装置，其特征在于，该装置包括第一模块和第二模块，
    所述第一模块，用于接收UE参考信号；
    所述第二模块，用于利用相同的标识和有所述UE参考信号的传输模式进行数据接收处理；
    所述相同的标识与用于生成所述UE参考信号的标识相同。
  23. 根据权利要求22所述的装置，其特征在于，所述相同的标识为GroupId、G-RNTI或他们的函数。
  24. 根据权利要求23所述的装置，其特征在于，该装置还包括第三模块，用于通过接收集群寻呼来获取所述GroupId或G-RNTI。
  25. 一种无线覆盖系统，其特征在于，包括如权利要求15～18任意一项所述的发送装置，和如权利要求22～24任意一项所述的接收装置。
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