WO2015180338A1 - 非授权载波的协调、协调处理方法及装置 - Google Patents

非授权载波的协调、协调处理方法及装置 Download PDF

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Publication number
WO2015180338A1
WO2015180338A1 PCT/CN2014/087610 CN2014087610W WO2015180338A1 WO 2015180338 A1 WO2015180338 A1 WO 2015180338A1 CN 2014087610 W CN2014087610 W CN 2014087610W WO 2015180338 A1 WO2015180338 A1 WO 2015180338A1
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Prior art keywords
base station
subframe
unlicensed carrier
indication information
channel
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PCT/CN2014/087610
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English (en)
French (fr)
Inventor
彭佛才
夏树强
苟伟
韩翠红
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中兴通讯股份有限公司
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Publication of WO2015180338A1 publication Critical patent/WO2015180338A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA

Definitions

  • unlicensed carriers need to compete to be used. If the base station (including the WiFi access point) does not compete for resources, the unlicensed carrier cannot be used.
  • LTE Long Term Evolution
  • 3GPP Third Generation Mobile Communication Partner Project
  • LTE currently has four stable versions of Rel-8 to Rel-11 that are fully backward compatible.
  • Rel-10 and Rel-11 support Carrier Aggregation (CA).
  • CA Carrier Aggregation
  • the base station informs the user equipment (User Equipment, through the PCFICH) Referred to as the UE, how many symbols are used in the current downlink subframe for the Physical Downlink Control Channel (hereinafter referred to as PDCCH). That is, the PCFICH carries a Control Format Indicator (CFI) value.
  • CFI Control Format Indicator
  • the PCFICH is transmitted on the first symbol of a downlink subframe, occupying a total of 16 resource elements (RE elements). From the current LTE system The system bandwidth supported (1.4MHz–20MHz), (on the first symbol) PCFICH does not fill the entire system bandwidth.
  • the base station can configure a Multicast Broadcast Single Frequency Network (hereinafter referred to as an MBSFN subframe) for the UE.
  • MBSFN subframe the first one or two symbols are used to transmit a downlink control channel (including a PCFICH, a PHICH, and a PDCCH, where the PHICH is an abbreviation of a Physical Hybrid ARQ Indicator Channel);
  • the symbol can be used to transmit a Physical Multicast Channel (PMCH), a Physical Downlink Shared Channel (PDSCH), or nothing.
  • PMCH Physical Multicast Channel
  • PDSCH Physical Downlink Shared Channel
  • the first one or two symbols have a Cell Reference Signal (CRS) for demodulation of the downlink control channel.
  • CRS may cause interference to neighboring base stations.
  • every 5 subframes (that is, every 5 milliseconds) will appear with a CRS.
  • Subframes (one subframe is one millisecond), and the other four subframes are completely blank if they are not scheduled. In this way, 20% of the time for a radio frame (ie, 10 milliseconds) is not completely blank.
  • Subframes that are not completely blank may cause interference to neighboring base stations (ie, CRS may cause interference to neighboring base stations).
  • LTE-U LTE in Unlicensed spectrum
  • DCI Downlink Control Information
  • the present invention provides a method and apparatus for coordinating and coordinating unlicensed carriers to solve at least The above technical problems.
  • a method for coordinating an unlicensed carrier including: the first base station acquiring indication information for indicating that the first base station occupies an unlicensed carrier; The base station sends indication information to the second base station and/or the terminal.
  • the first base station sends indication information to the second base station and/or the terminal, including one of the following: the first base station sends the indication information on a first symbol of each radio frame, where the A base station transmits the indication information on the first symbol of each subframe.
  • the first base station occupies an unlicensed carrier, including at least one of: whether the first base station occupies the unlicensed carrier information; and the first base station occupies a duration of the unlicensed carrier.
  • a method for coordinating an unlicensed carrier including: receiving, by a second base station, a first carrier from the first base station to indicate that the first base station occupies an unlicensed carrier And the second base station coordinates the use of the unlicensed carrier by the second base station according to the indication information.
  • the second base station receives indication information from the first base station for indicating that the first base station occupies an unlicensed carrier, and includes one of the following: the second base station receives on the first symbol of each radio frame. The indication information, the second base station receives the indication information on a first symbol of each subframe.
  • a method for coordinating processing of an unlicensed carrier including: receiving, by a terminal, a radio frame from a first base station, and scheduling information from the first base station. And/or a physical control format indication channel, where the radio frame carries indication information for indicating that the first base station occupies an unlicensed carrier; the terminal indicates according to the scheduling information and/or the physical control format Determining, by the channel, a subframe type of the radio frame, where the type includes: a downlink subframe, an uplink subframe, and a hybrid uplink and downlink subframe; the terminal sends the sum on the subframe indicated by the type according to the scheduling information. / or receive data.
  • the indication information is carried on a first symbol of each of the radio frames or each of the subframes.
  • the hybrid uplink and downlink subframes include a transmission time of the base station and a transmission time of the terminal in time; the hybrid uplink and downlink subframes include frequency resources transmitted by the base station and frequency resources transmitted by the terminal on the frequency; the mixing The uplink and downlink subframes include resources transmitted by the base station and resources transmitted by the terminal on the time and frequency resources; in the hybrid uplink and downlink subframe, if the base station transmits information on the first symbol of the hybrid uplink and downlink subframe The terminal removes the first symbol or the first two symbols of the mixed uplink and downlink subframes when the uplink and downlink subframes transmit the uplink channel.
  • a device for coordinating an unlicensed carrier which is located in the first base station, and includes: an acquiring module, configured to acquire, to indicate that the first base station is occupied by a non- The indication information of the authorized carrier; the sending module is configured to send the indication information to the second base station and/or the terminal.
  • the sending module is configured to send the indication information on each radio frame or the first symbol of each subframe.
  • a coordination device for an unlicensed carrier is further provided, which is applied to a second base station, and includes: a receiving module, configured to receive, from the first base station, The first base station occupies the indication information of the unlicensed carrier; the coordination module is configured to coordinate the use of the unlicensed carrier by the second base station according to the indication information.
  • said receiving module is arranged to receive said indication information on a first symbol of each radio frame or each sub-frame.
  • an apparatus for coordinating processing of an unlicensed carrier including: a receiving module, configured to receive a radio frame from the first base station, and from the first The scheduling information of the base station and/or the physical control format indication channel, wherein the radio frame carries indication information for indicating that the first base station occupies an unlicensed carrier; and the determining module is configured to be configured according to the scheduling information and/or The physical control format indication channel determines a type of a subframe of the radio frame, where the type includes: a downlink subframe, an uplink subframe, and a hybrid uplink and downlink subframe; and a communication module is configured to be in accordance with the scheduling information The data is transmitted and/or received on the subframe indicated by the type.
  • the receiving module is further configured to receive the radio frame in the case of carrying the indication information on a first symbol of each of the radio frames or each of the sub-frames.
  • FIG. 3 is another flow chart of a method for coordinating an unlicensed carrier according to an embodiment of the present invention.
  • FIG. 4 is a block diagram showing another structure of a device for coordinating unlicensed carriers according to an embodiment of the present invention.
  • FIG. 6 is a structural block diagram of an apparatus for coordinating processing of an unlicensed carrier according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a first RE distribution of a physical control format indication channel according to a preferred embodiment of the present invention.
  • FIG. 9 is a schematic diagram of a second RE distribution of a physical control format indication channel according to a preferred embodiment of the present invention.
  • FIG. 10 is a schematic diagram of a third RE distribution of a physical control format indication channel according to a preferred embodiment of the present invention.
  • FIG. 11 is a schematic diagram 1 of a hybrid uplink and downlink subframe according to a preferred embodiment of the present invention (mixing only in time);
  • FIG. 13 is a schematic diagram showing the composition of a mixed uplink and downlink subframe (mixed in time and frequency) according to a preferred embodiment of the present invention.
  • Step S102 The first base station acquires indication information used to indicate that the first base station occupies an unlicensed carrier.
  • Step S104 The first base station sends indication information to the second base station and/or the terminal.
  • the first base station may send the indication information to the second base station and/or the base station by using the foregoing processing steps. Therefore, the second base station may minimize the use of the unlicensed carrier between the first base station and the first base station according to the indication information. Interference, especially when the first base station and the second base station are mutually adjacent base stations (strong interference), effectively avoiding interference between adjacent base stations.
  • Step S104 is implemented in multiple manners.
  • the first base station and the second base station and the terminal are agreed to use the specified symbol of the radio frame to transmit, and the indication information may be sent on the first symbol of each radio frame or each subframe. But it is not limited to this.
  • transmitting the indication information on the first symbol of each radio frame may be understood as transmitting the indication information on the first symbol of the first subframe in each radio frame.
  • the first base station does not send the indication information.
  • the base station can configure each subframe in a radio frame to be a completely blank subframe, which can be without any signal or/and channel.
  • the indication information that the first base station occupies the unlicensed carrier includes, but is not limited to, the following: the duration of the foregoing unoccupied carrier channel occupied by the first base station; whether the first base station occupies the information of the unlicensed carrier (including which/what is included) Used on the frame; the duration that the first base station occupies the unlicensed carrier.
  • the first base station can indicate the time when the second base station needs to use the unlicensed carrier.
  • the implementation of the step S102 is various, for example, it can be determined by sending the physical control format indication channel by the first base station.
  • the determining manner includes, but is not limited to, at least one of the following: the first base station determines by determining the number of repetitions of the physical control format indication channel; and the first base station indicates that the channel is in the physical control format by transmitting the physical control format indication channel. Determining part or all of the resource elements of the first symbol occupied in one subframe; the first base station determines by transmitting a known digital sequence on the physical control format indication channel; the first base station is occupied by the physical control format indication channel The offset of the resource unit is determined.
  • a non-authorized carrier coordination device is also provided, which is located in the first base station. As shown in FIG. 2, the device includes:
  • the obtaining module 20 is configured to obtain indication information used to indicate that the first base station occupies an unlicensed carrier
  • the sending module 22 is connected to the obtaining module 20, and is configured to send indication information to the second base station and/or the terminal, where the first base station and the second base station are mutually adjacent base stations.
  • the sending module 22 is further configured to send the indication information on the first symbol of each radio frame or each subframe.
  • each of the foregoing modules may be implemented by using software or hardware.
  • the foregoing may be implemented by, but not limited to, the obtaining module 20 and the sending module 22 are respectively located in the first processor and the second processing. In the device; or, the acquisition module 20 and the transmission module 22 are located in the same processor.
  • the method includes:
  • Step S302 The second base station receives, from the first base station, indication information used to indicate that the first base station occupies an unlicensed carrier.
  • Step S304 the second base station coordinates the use of the unlicensed carrier by the second base station according to the indication information.
  • the second base station can minimize the interference with the first base station when the unlicensed carrier is used according to the indication information, especially when the first base station and the second base station are mutually adjacent base stations (the interference is strong). Effectively avoid interference between adjacent base stations.
  • the second base station may receive the indication information on each radio frame and/or the first symbol of each subframe, but is not limited to the implementation manner.
  • the embodiment further provides another unlicensed carrier coordination device, which is applied to the second base station.
  • the device includes:
  • the receiving module 40 is configured to receive, from the first base station, indication information used to indicate that the first base station occupies an unlicensed carrier;
  • a method for coordinating processing of an unlicensed carrier is also provided on the terminal side. As shown in FIG. 5, the method includes:
  • Step S504 the terminal determines, according to the scheduling information and/or the physical control format indication channel, a subframe type of the radio frame, where the type includes: a downlink subframe, an uplink subframe, and a hybrid uplink and downlink subframe;
  • the indication information may be carried on the first symbol of each radio frame or each subframe, but is not limited thereto.
  • an unlicensed carrier coordination processing apparatus is further provided, which is used to implement an upload coordination processing method.
  • the apparatus includes:
  • the receiving module 60 is configured to receive the radio frame from the first base station, and the scheduling information and/or the physical control format indication channel from the first base station, where the radio frame carries the unlicensed carrier for indicating that the first base station occupies Instructions;
  • the determining module 62 is connected to the receiving module 60, and is configured to determine a subframe type of the radio frame according to the foregoing scheduling information and/or the physical control format indication channel, where the type includes: a downlink subframe, an uplink subframe, and a hybrid upper and lower Row subframe
  • the receiving module 60 is further configured to receive the radio frame in the following case: the indication information is carried on the first symbol of each of the radio frames or each sub-frame.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the base station transmits indication information (ie, PCFICH) for indicating that the first base station occupies an unlicensed carrier on the first symbol of each radio frame, as shown in FIG.
  • indication information ie, PCFICH
  • the base station can configure each subframe in a radio frame to be a completely blank subframe. If the base station does not schedule any UEs (uplink and downlink), there is no interference to neighboring base stations.
  • the above indication information may be given by the base station transmitting a physical control format indication channel.
  • the above physical control format indicates that the channel can occupy part of the resource elements of the first symbol of one subframe.
  • Figure 8 shows that the physical control format indication channel occupies a total of 16 REs
  • the above physical control format indicates that the channel uses a CFI value of 4. If the LTE-U is operating in CA mode, the control channel (PDCCH/EPDCCH) is from the authorized carrier; if the LTE-U is independently operated, the LTE-U base station needs to configure the EPDCCH (including the common search space) for the UE.
  • the control channel (PDCCH/EPDCCH) is from the authorized carrier; if the LTE-U is independently operated, the LTE-U base station needs to configure the EPDCCH (including the common search space) for the UE.
  • the CFI value of 4 above indicates that the base station occupies the entire radio frame (i.e., all 10 subframes).
  • the terminal receives data transmitted by the base station on the downlink subframe according to the scheduling information.
  • the solution provided in this embodiment can reduce interference between neighboring base stations when an unlicensed carrier is used, indicate how long a neighboring base station needs to use an unlicensed carrier, and how long the local base station needs to use an unlicensed carrier.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the base station transmits indication information (ie, PCFICH) for indicating that the first base station occupies an unlicensed carrier on the first symbol of each radio frame, as shown in FIG.
  • indication information ie, PCFICH
  • the above indication information may be given by the base station transmitting a physical control format indication channel.
  • the above physical control format indicates that the channel can occupy part or all of the resource elements of the first symbol of one subframe.
  • Figure 8-10 shows that the physical control format indication channel occupies a total of 16 REs;
  • the above physical control format indicates that the channel uses a CFI value of 1 or 2 or 3.
  • the control channel (PDCCH/EPDCCH) may be from the authorized carrier; if the LTE-U is independently operated, the LTE-U base station may configure the EPDCCH (including the common search space) for the UE.
  • the CFI value of 1 or 2 or 3 above indicates that the base station continuously occupies 2 CFI subframes (i.e., 2 or 4 or 8 subframes).
  • the terminal receives data transmitted by the base station on the downlink subframe according to the scheduling information.
  • the terminal receives data transmitted by the base station on the downlink subframe according to the scheduling information;
  • the base station transmits data to the base station.
  • the solution proposed in this embodiment can also reduce the interference between neighboring base stations when the unlicensed carrier is used, and indicate how long the neighboring base station needs to use the unlicensed carrier.
  • the above indication information may be given by the base station transmitting a physical control format indication channel.
  • the above physical control format indicates that the channel can occupy part of the resource elements of the first symbol of one subframe.
  • Figure 8-9 shows that the physical control format indication channel occupies a total of 16 REs;
  • the CFI value of 1 above indicates that the base station only occupies the current subframe.
  • the terminal is configured according to the scheduling information.
  • the data transmitted by the base station is received on the downlink subframe.
  • the fifth subframe Since the fifth subframe has both downlink transmission and uplink transmission, it is a hybrid uplink and downlink subframe.
  • the base station transmits information on the first symbol of the subframe
  • the terminal transmits the uplink channel in the hybrid uplink and downlink subframe
  • the first symbol of the subframe needs to be removed ( As shown in Figure 12) or the first two symbols (as shown in Figure 11).
  • the scheme provided in this embodiment can reduce interference between neighboring base stations when an unlicensed carrier is used, and indicate how long the neighboring base station needs to use an unlicensed carrier.
  • Embodiment 4 is a diagrammatic representation of Embodiment 4:
  • the base station transmits indication information (ie, PCFICH) for indicating that the first base station occupies an unlicensed carrier on the first symbol of each radio frame, as shown in FIG.
  • indication information ie, PCFICH
  • the base station can configure each subframe in a radio frame to be a completely blank subframe. If the base station does not schedule any UEs (uplink and downlink), there is no interference to neighboring base stations.
  • the above indication information may be given by the base station transmitting a physical control format indication channel.
  • the above physical control format indicates that the channel can occupy part or all of the resource elements of the first symbol of one subframe.
  • the above physical control format indicates that the channel can occupy part of the resource elements of the first symbol of one subframe.
  • Figure 8-9 shows that the physical control format indication channel occupies a total of 16 REs;
  • the above physical control format indicates that the channel uses a CFI value of zero. If the LTE-U is operating in CA mode, the control channel (PDCCH/EPDCCH) is from the authorized carrier; if the LTE-U is independently operated, the LTE-U base station needs to configure the EPDCCH (including the common search space) for the UE.
  • the control channel (PDCCH/EPDCCH) is from the authorized carrier; if the LTE-U is independently operated, the LTE-U base station needs to configure the EPDCCH (including the common search space) for the UE.
  • the CFI value of 0 above indicates that the base station only occupies the current subframe.
  • the first five subframes of the above radio frame transmit the above physical control format indication channel, and that the first four subframes are used for downlink scheduling, and that the first half of the last subframe is used for the physical resource block (PRB).
  • the latter half of the physical resource block (PRB) is used for downlink scheduling (as shown in Figure 13).
  • the fifth subframe Since the fifth subframe has both downlink transmission and uplink transmission, it is a hybrid uplink and downlink subframe.
  • the base station transmits information on the first symbol of the subframe
  • the terminal transmits the uplink channel in the hybrid uplink and downlink subframe
  • the first symbol of the subframe needs to be removed ( As shown in Figure 12) or the first two symbols (as shown in Figure 11).
  • the terminal receives or/and transmits data on the hybrid uplink and downlink subframe according to the scheduling information.
  • the base station transmits indication information (ie, PCFICH) for indicating that the first base station occupies an unlicensed carrier on the first symbol of each radio frame, as shown in FIG.
  • indication information ie, PCFICH
  • the base station can configure each subframe in a radio frame to be a completely blank subframe. If the base station does not schedule any UEs (uplink and downlink), there is no interference to neighboring base stations.
  • the above indication information may be given by the base station transmitting a physical control format indication channel.
  • the above physical control format indicates that the channel can occupy part of the resource elements of the first symbol of one subframe.
  • Figure 8-9 shows that the physical control format indication channel occupies a total of 16 REs;
  • FIG. 9 shows that the physical control format indication channel occupies a total of 16xN REs, and N represents the number of control channel repetitions.
  • the above physical control format indicates that the channel uses a CFI value of 4. If the LTE-U is operating in CA mode, the control channel (PDCCH/EPDCCH) is from the authorized carrier; if the LTE-U is independently operated, the LTE-U base station needs to configure the EPDCCH (including the common search space) for the UE.
  • the control channel (PDCCH/EPDCCH) is from the authorized carrier; if the LTE-U is independently operated, the LTE-U base station needs to configure the EPDCCH (including the common search space) for the UE.
  • the solution provided by this embodiment can also reduce the interference between neighboring base stations when an unlicensed carrier is used, and indicate how long the neighboring base station needs to use the unlicensed carrier.
  • the base station transmits indication information (ie, PCFICH) for indicating that the first base station occupies an unlicensed carrier on the first symbol of each radio frame, as shown in FIG.
  • indication information ie, PCFICH
  • the base station can configure each subframe in a radio frame to be a completely blank subframe. If the base station does not schedule any UEs (uplink and downlink), there is no interference to neighboring base stations.
  • the above indication information may be given by the base station transmitting a physical control format indication channel.
  • the above physical control format indicates that the channel can occupy part of the resource elements of the first symbol of one subframe.
  • the first base station transmits the PCFICH (the system bandwidth is 100 PRBs) on the first symbol above the first 50 PRBs and does not have any channel/signal transmission on the first symbol of the next 50 PRBs.
  • the second base station transmits the PCFICH (the system bandwidth is 100 PRBs) on the first symbol above the last 50 PRBs and does not have any channel/signal transmission on the first symbol of the first 50 PRBs.
  • the base station can know whether a collision has occurred by receiving a PCFICH on the PRBs that are not transmitted by its own PCFICH (a separate implementation of reception/transmission can be implemented with different antennas). Knowing that a collision has occurred, the base station can perform a time backoff.
  • the terminal receives data transmitted by the base station on the downlink subframe according to the scheduling information.
  • a storage medium is further provided, wherein the software includes the above-mentioned software, including but not limited to: an optical disk, a floppy disk, a hard disk, an erasable memory, and the like.
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the first base station sends a technical means for indicating that the first base station occupies the unlicensed carrier to the second base station or the terminal, and solves the related art, and has not reduced the use.
  • Technical problems such as a solution to interference between adjacent base stations when an unlicensed carrier is used, so that interference between adjacent base stations when an unlicensed carrier is used can be avoided or reduced.

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Abstract

本发明提供了一种非授权载波的协调、协调处理方法及装置,其中,该协调方法包括:第一基站获取用于指示所述第一基站占用非授权载波的指示信息;所述第一基站向第二基站和/或终端发送指示信息。采用本发明提供的上述技术方案,解决了相关技术中,尚无减少在使用非授权载波时的相邻基站之间的干扰的解决方案等技术问题,从而可以避免或减少使用非授权载波时相邻基站之间的干扰。

Description

非授权载波的协调、协调处理方法及装置 技术领域
本发明涉及通信领域,尤其是涉及一种非授权载波的协调、协调处理方法及装置。
背景技术
非授权载波(免授权频谱)是指在满足政府部门(如,国家无线电管理委员会)有关规定(无线电管制)下,不需要授权就能直接使用的频谱(或载波)。在我们的日常生活中,微波炉、遥控玩具飞机、无线鼠标、无线键盘、高保真无线上网(Wireless Fidelity,简称WiFi)等都使用了非授权载波。
由于各种设备都能使用非授权载波,它们之间可能会相互干扰,这可能会导致非授权载波上传输的数据发生错误。为减少或避免这种错误,相邻设备之间最好在使用非授权载波之前协商一下资源如何使用(例如,告知相邻站点,自己这一站点需要使用多长时间)。
在有的情况下,非授权载波需要通过竞争才能使用。如果基站(包括WiFi接入点)没有竞争到资源,则不能使用非授权载波。
长期演进(Long Term Evolution,简称LTE)是第三代移动通信合作伙伴项目(以下简称3GPP)推出的运行在授权载波上的移动通信系统。LTE目前有Rel-8到Rel-11共4个完全向后兼容的稳定版本,其中Rel-10和Rel-11支持载波聚合(Carrier Aggregation,简称CA)功能。
根据3GPP的协议TS36.211-b50物理信道与调制(Physical Channels and Modulation)的第6.7节物理控制格式指示信道(Physical Control Format Indicator Channel,简称为PCFICH),基站通过PCFICH告诉用户设备(User Equipment,简称为UE),当前的下行子帧有多少个符号用于物理下行控制信道(Physical Downlink Control Channel,以下简称PDCCH)。即,PCFICH上面载有控制格式指示(Control Format Indicator,以下简称CFI)值。
根据3GPP的协议TS36.211-b50的第6.7节,PCFICH在一个下行子帧的第一个符号上发射,共占用16个资源单元(Resource Element,以下简称RE)。从目前LTE系 统支持的系统带宽上看(1.4MHz–20MHz),(在第一个符号上)PCFICH没有在整个系统带宽上占满。
根据3GPP的协议TS36.212-b20(Multiplexing and channel coding;复用和信道编码)的第5.3.4节(CFI),CFI目前可取的值是1、2、3、4(其中“4”是预留值),如表1所示。
表1
Figure PCTCN2014087610-appb-000001
根据3GPP的协议TS36.211-b50的第6.7节,基站可以给UE配置多播单频网子帧(Multimedia Broadcast Single Frequency Network,以下简称MBSFN子帧)。在MBSFN子帧中,最前面一个或2个符号用于发射下行控制信道(包括PCFICH、PHICH和PDCCH,其中,PHICH是物理混合自动重传指示信道(Physical Hybrid ARQ Indicator Channel)的简称);后面的符号可用于发射物理多播信道(Physical Multicast Channel以下简称PMCH)、物理下行共享信道(Physical Downlink Shared Channel,以下简称PDSCH),或者什么也不发射。
在MBSFN子帧中,最前面一个或2个符号存在小区参考信号(Cell Reference Signal,以下简称CRS)用于上述下行控制信道的解调。CRS可能会对相邻基站产生干扰。
根据3GPP RAN1#68bis次会议的结论(《Final_ReportWG1#68b_v110》),在新载波类型(New Carrier Type,以下简称NCT)中,每5个子帧(即,每5毫秒)会出现一个带有CRS的子帧(一个子帧为一毫秒),其他4个子帧如果没有调度,则是完全空白的。这样一来,一个无线帧(即,10毫秒)会有20%的时间不是完全空白的。非完全空白的子帧可能会对相邻基站产生干扰(即,CRS可能会对相邻基站产生干扰)。
根据3GPP的协议TS36.211-b50的第5.3.4节,物理上行共享信道(Physical Uplink Shared Channel,以下简称PUSCH)可以占用除解调参考信号(Demodulation Reference Signal,以下简称DM-RS)外的一个子帧的全部符号(常规循环前缀(Cyclic Prefix,以下简称CP)下为12个符号,扩展CP下为10个符号)。
在2013年12月3日–6日举行的3GPP无线接入网(Radio Access Network,以下简称RAN)第62次全会上,许多公司提出了“非授权载波上的LTE”(LTE in Unlicensed spectrum;以下简称LTE-U)。许多公司认为,LTE-U可以通过CA的方式来工作——其中授权载波提供控制信息(如上面提到的下行控制信息(Downlink Control Information,以下简称DCI)),非授权载波只用来传输数据。当然,LTE-U进行独立运营也是可行的。
相关技术中,并无减少在使用非授权载波时的相邻基站之间的干扰解决方案。
发明内容
针对相关技术中,尚无减少在使用非授权载波时的相邻基站之间的干扰的解决方案等技术问题,本发明提供了一种非授权载波的协调、协调处理方法及装置,以至少解决上述技术问题。
为了达到上述目的,根据本发明的一个实施例,提供了一种非授权载波的协调方法,包括:第一基站获取用于指示所述第一基站占用非授权载波的指示信息;所述第一基站向第二基站和/或终端发送指示信息。
优选地,所述第一基站向第二基站和/或终端发送指示信息,包括以下之一:所述第一基站在每个无线帧的第一个符号上发送所述指示信息,所述第一基站在每个子帧的第一个符号上发送所述指示信息。
优选地,所述第一基站占用非授权载波包括以下至少之一:所述第一基站是否占用所述非授权载波信息;所述第一基站占用所述非授权载波的持续时间。
优选地,第一基站获取用于指示所述第一基站占用非授权载波的指示信息,包括:所述第一基站通过所述第一基站发送物理控制格式指示信道来确定。
优选地,所述第一基站通过所述第一基站发送物理控制格式指示信道来确定,包括以下之一:所述第一基站通过发送所述物理控制格式指示信道的重复次数来确定;所述第一基站通过在发送所述物理控制格式指示信道时,所述物理控制格式指示信道在一个子帧中所占用的第一个符号的部分或全部资源单元来确定,所述第一基站通过在所述物理控制格式指示信道上发送已知的数字序列来确定;所述第一基站通过所述物理控制格式指示信道所占用资源单元的偏移量来确定。
为了达到上述目的,根据本发明的再一个实施例,还提供了一种非授权载波的协调方法,包括:第二基站接收来自第一基站的用于指示所述第一基站占用非授权载波 的指示信息;所述第二基站按照所述指示信息协调所述第二基站对所述非授权载波的使用。
优选地,第二基站接收来自第一基站的用于指示所述第一基站占用非授权载波的指示信息,包括以下之一:所述第二基站在每个无线帧的第一个符号上接收所述指示信息,所述第二基站在每个子帧的第一个符号上接收所述指示信息。
为了达到上述目的,根据本发明的再一个实施例,还提供了一种非授权载波的协调处理方法,包括:终端接收自第一基站的无线帧,以及来自于所述第一基站的调度信息和/或物理控制格式指示信道,其中,所述无线帧中携带有用于指示所述第一基站占用非授权载波的指示信息;所述终端根据所述调度信息和/或所述物理控制格式指示信道确定所述无线帧的子帧类型,其中,该类型包括:下行子帧、上行子帧和混合上下行子帧;所述终端根据所述调度信息在所述类型指示的子帧上发送和/或接收数据。
优选地,在每个所述无线帧或每个所述子帧的第一个符号上携带所述指示信息。
优选地,所述混合上下行子帧在时间上包含基站的发射时间和终端的发射时间;所述混合上下行子帧在频率上包含基站发射的频率资源和终端发射的频率资源;所述混合上下行子帧在时间和频率资源上包含基站发射的资源和终端发射的资源;在所述混合上下行子帧中,如果基站在所述混合上下行子帧的第一个符号上发射了信息,则终端在上述混合上下行子帧发射上行信道时,去除所述混合上下行子帧的第一个符号或最前面两个符号。
为了达到上述目的,根据本发明的再一个实施例,还提供了一种非授权载波的协调装置,位于第一基站中,包括:获取模块,设置为获取用于指示所述第一基站占用非授权载波的指示信息;发送模块,设置为向第二基站和/或终端发送指示信息。
优选地,所述发送模块,设置为在每个无线帧或每个子帧的第一个符号上发送所述指示信息。
为了达到上述目的,根据本发明的再一个实施例,还提供了一种非授权载波的协调装置,应用于第二基站,包括:接收模块,设置为接收来自第一基站的用于指示所述第一基站占用非授权载波的指示信息;协调模块,设置为按照所述指示信息协调所述第二基站对所述非授权载波的使用。
优选地,所述接收模块,设置为在每个无线帧或每个子帧的第一个符号上接收所述指示信息。
为了达到上述目的,根据本发明的再一个实施例,还提供了一种非授权载波的协调处理装置,包括:接收模块,设置为接收自第一基站的无线帧,以及来自于所述第一基站的调度信息和/或物理控制格式指示信道,其中,所述无线帧中携带有用于指示所述第一基站占用非授权载波的指示信息;确定模块,设置为根据所述调度信息和/或所述物理控制格式指示信道确定所述无线帧的子帧的类型,其中,该类型包括:下行子帧、上行子帧和混合上下行子帧;通信模块,设置为根据所述调度信息在所述类型指示的子帧上发送和/或接收数据。
优选地,所述接收模块还设置为在以下情况下接收所述无线帧:在每个所述无线帧或每个所述子帧的第一个符号上携带所述指示信息。
通过本发明,采用第一基站向第二基站或终端发送用于指示第一基站占用非授权载波的指示信息的技术手段,解决了相关技术中,尚无减少在使用非授权载波时的相邻基站之间的干扰的解决方案等技术问题,从而可以避免或减少使用非授权载波时相邻基站之间的干扰。
附图说明
此处所说明的附图用来提供对本发明的进一步理解,构成本申请的一部分,本发明的示意性实施例及其说明用于解释本发明,并不构成对本发明的不当限定。在附图中:
图1为根据本发明实施例的非授权载波的协调方法的流程图;
图2为根据本发明实施例的非授权载波的协调装置的结构框图;
图3为根据本发明实施例的非授权载波的协调方法的另一流程图;
图4为根据本发明实施例的非授权载波的协调装置的另一结构框图;
图5为根据本发明实施例的非授权载波的协调处理方法的流程图;
图6为根据本发明实施例的非授权载波的协调处理装置的结构框图;
图7为根据本发明优选实施例的在每个无线帧的第一个符号上发送指示信息(PCFICH)的示意图;
图8为根据本发明优选实施例的物理控制格式指示信道的第一RE分布示意图;
图9为根据本发明优选实施例的物理控制格式指示信道的第二RE分布示意图;
图10为根据本发明优选实施例的物理控制格式指示信道的第三RE分布示意图;
图11为根据本发明优选实施例的混合上下行子帧构成示意图一(只在时间上进行混合);
图12为根据本发明优选实施例的混合上下行子帧构成示意图二(只在时间上进行混合);
图13为根据本发明优选实施例的混合上下行子帧构成示意图(在时间和频率上进行混合)。
具体实施方式
下文中将参考附图并结合实施例来详细说明本发明。需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互组合。
图1为根据本发明实施例的非授权载波的协调方法的流程图。如图1所示,该方法包括步骤S102-S104:
步骤S102,第一基站获取用于指示第一基站占用非授权载波的指示信息;
步骤S104,第一基站向第二基站和/或终端发送指示信息。
通过上述各个处理步骤,由于第一基站向第二基站和/或基站发送了上述指示信息,因此,第二基站可以根据该指示信息尽量减少在使用非授权载波时,与第一基站之间的干扰,尤其是在第一基站和第二基站互为相邻基站时(干扰较强),有效避免相邻基站间的干扰。
步骤S104的实现方式有多种,例如第一基站和第二基站以及终端约定采用无线帧的指定符号发送,也可以在每个无线帧或每个子帧的第一个符号上发送上述指示信息,但不限于此。其中,在每个无线帧的第一个符号上发送指示信息可以理解为在每个无线帧中第一个子帧的第一个符号上发送上述指示信息。
在具体应用时,如果整个无线帧都不调度,则第一基站不发送上述指示信息。基站可以将一个无线帧中的每个子帧都可配成完全空白的子帧,该完全空白的子帧可以没有任何的信号或/和信道。
上述第一基站占用非授权载波的指示信息包括但不限于以下内容:上述第一基站占用上述非授权载波信道的持续时间;第一基站是否占用非授权载波的信息(包括在哪一个/哪些子帧上使用);第一基站占用所述非授权载波的持续时间。这样利用该持续时间第一基站便可以指示第二基站第一基站需要使用非授权载波的时间。
步骤S102的实现方式有多种,例如可以通过上述第一基站发送物理控制格式指示信道来确定。此时,确定方式包括但不限于以下至少之一:第一基站通过发送上述物理控制格式指示信道的重复次数确定;第一基站通过在发送上述物理控制格式指示信道时,物理控制格式指示信道在一个子帧中所占用的第一个符号的部分或全部资源单元确定;第一基站通过在上述物理控制格式指示信道上发送已知的数字序列确定;第一基站通过物理控制格式指示信道所占用资源单元的偏移量确定。
在本实施例中还提供了一种非授权载波的协调装置,位于第一基站中,如图2所示,该装置包括:
获取模块20,设置为获取用于指示第一基站占用非授权载波的指示信息;
发送模块22,连接至获取模块20,设置为向第二基站和/或终端发送指示信息,其中,第一基站和第二基站互为相邻基站。
在本实施例的一个优选实施方式中,发送模块22,还设置为在每个无线帧或每个子帧的第一个符号上发送上述指示信息。
需要说明的是,上述各个模块是可以通过软件或硬件来实现的,对于后者,可以通过以下方式实现,但不限于此:获取模块20与发送模块22分别位于第一处理器和第二处理器中;或者,获取模块20与发送模块22位于同一处理器中。
在本实施例中,还提供了另外一种非授权载波的协调方法,如图3所示,该方法包括:
步骤S302,第二基站接收来自第一基站的用于指示第一基站占用非授权载波的指示信息;
步骤S304,第二基站按照上述指示信息协调第二基站对上述非授权载波的使用。这样,第二基站可以根据该指示信息尽量减少在使用非授权载波时,与第一基站之间的干扰,尤其是在第一基站和第二基站互为相邻基站时(干扰较强),有效避免相邻基站间的干扰。
步骤S302中,第二基站可以在每个无线帧和/或每个子帧的第一个符号上接收上述指示信息,但不限于该实现方式。
为实现上述方法,本实施例还提供另外一种非授权载波的协调装置,应用于第二基站,如图4所示,该装置包括:
接收模块40,设置为接收来自第一基站的用于指示第一基站占用非授权载波的指示信息;
协调模块42,连接至接收模块40,设置为按照上述指示信息协调第二基站对上述非授权载波的使用。
在一个优选实施方式中,接收模块40,还设置为在每个无线帧或每个子帧的第一个符号上接收上述指示信息。
需要说明的是,上述各个模块是可以通过软件或硬件来实现的,对于后者,可以通过以下方式实现,但不限于此:接收模块40与协调模块42分别位于第一处理器和第二处理器中;或者,接收模块40与协调模块42位于同一处理器中。
在本实施例中,还在终端侧提供一种非授权载波的协调处理方法,如图5所示,该方法包括:
步骤S502,终端接收自第一基站的无线帧,以及来自于第一基站的调度信息和/或物理控制格式指示信道,其中,上述无线帧中携带有用于指示第一基站占用非授权载波的指示信息;
步骤S504,终端根据上述调度信息和/或上述物理控制格式指示信道确定无线帧的子帧类型,其中,该类型包括:下行子帧、上行子帧和混合上下行子帧;
步骤S506,终端根据上述调度信息在上述类型指示的子帧上发送和/或接收数据。具体可以表现为以下形式:终端根据调度信息在上述下行子帧上接收基站发射的数据;终端根据调度信息在上述上行子帧上发射数据;终端根据调度信息在上述混合上下行子帧上接收或/和发射数据。
步骤S502中,可以在每个无线帧或每个子帧的第一个符号上携带上述指示信息,但不限于此。
在本实施例中,上述混合上下行子帧在时间上包含基站的发射时间和终端的发射时间;上述混合上下行子帧在频率上包含基站发射的频率资源和终端发射的频率资源; 上述混合上下行子帧在时间和频率资源上包含基站发射的资源和终端发射的资源;在上述混合上下行子帧中,如果基站在上述混合上下行子帧的第一个符号上发射了信息,则终端在上述混合上下行子帧发射上行信道时,去除上述混合上下行子帧的第一个符号或最前面两个符号。
在本实施例中,还提供一种非授权载波的协调处理装置,用于实现上传协调处理方法,如图6所示,该装置包括:
接收模块60,设置为接收自第一基站的无线帧,以及来自于第一基站的调度信息和/或物理控制格式指示信道,其中,上述无线帧中携带有用于指示第一基站占用非授权载波的指示信息;
确定模块62,连接至接收模块60,设置为根据上述调度信息和/或上述物理控制格式指示信道确定上述无线帧的子帧类型,其中,该类型包括:下行子帧、上行子帧和混合上下行子帧;
通信模块64,连接至确定模块62,设置为根据上述调度信息在上述类型指示的子帧上发送和/或接收数据。
在一个优选实施方式中,接收模块60还设置为在以下情况下接收上述无线帧:在每个上述无线帧或每个子帧的第一个符号上携带上述指示信息。
为了更好地理解上述实施例及其优选实施方式,以下结合优选实施例详细说明。
实施例一:
基站在每个无线帧的第一个符号上发射用于指示第一基站占用非授权载波的指示信息(即PCFICH),如附图7所示。
基站把一个无线帧中的每个子帧都可配成完全空白的子帧。如果基站没有调度任何UE(上行和下行),则对相邻基站没有干扰。
上述指示信息可以通过基站发射物理控制格式指示信道来给出。
上述物理控制格式指示信道可以占用一个子帧的第一个符号的部分资源单元。如图8和9图所示。图8表示物理控制格式指示信道总共占用了16个RE;图9表示物理控制格式指示信道总共占用了16x62=992个RE(2头各空着4个RE),中间还有CRS占了2x100=200个RE。
上述物理控制格式指示信道使用的CFI值为4。如果LTE-U是以CA方式运行的,那么控制信道(PDCCH/EPDCCH)来自授权载波;如果LTE-U是独立运营的,那么LTE-U基站需要给UE配置EPDCCH(包括公共搜索空间)。
上述为4的CFI值表示该基站占用整个无线帧(即,全部10个子帧)。
假定上述10个子帧都用于下行调度,则终端根据调度信息在上述下行子帧上接收基站发射的数据。
可见,本实施例提供的方案能减少在使用非授权载波时的相邻基站之间的干扰、指示相邻基站,本地基站需要使用非授权载波多长时间。
实施例二:
基站在每个无线帧的第一个符号上发射用于指示第一基站占用非授权载波的指示信息(即PCFICH),如附图7所示
基站把一个无线帧中的每个子帧都可配成完全空白的子帧。如果基站没有调度任何UE(上行和下行),则对相邻基站没有干扰。
上述指示信息可以通过基站发射物理控制格式指示信道来给出。
上述物理控制格式指示信道可以占用一个子帧的第一个符号的部分资源单元或全部资源单元。如图8-10所示。图8表示物理控制格式指示信道总共占用了16个RE;图9表示物理控制格式指示信道总共占用了16x62=992个RE(2头各空着4个RE);图10表示物理控制格式指示信道总共占用了16x62+4+4=1000个RE。
上述物理控制格式指示信道使用的CFI值为1或2或3。如果LTE-U是以CA方式运行的,那么控制信道(PDCCH/EPDCCH)可以来自授权载波;如果LTE-U是独立运营的,那么LTE-U基站可以给UE配置EPDCCH(包括公共搜索空间)。
上述为1或2或3的CFI值表示该基站连续占用2CFI个子帧(即,2或4或8个子帧)。
假定上述2CFI个子帧都用于下行调度,则终端根据调度信息在上述下行子帧上接收基站发射的数据。
假定上述23=8个子帧的前面4个子帧用于下行调度,后面4个子帧用于上行调度,则终端根据调度信息在上述下行子帧上接收基站发射的数据;终端根据调度信息在上述上行子帧上给基站发射数据。
由此可见,本实施例提出的方案同样能减少在使用非授权载波时的相邻基站之间的干扰、指示相邻基站,自己这一基站需要使用非授权载波多长时间。
实施例三:
基站在每个无线帧的第一个符号上发射用于指示第一基站占用非授权载波的指示信息(即PCFICH),如图7所示。
基站把一个无线帧中的每个子帧都可配成完全空白的子帧。如果基站没有调度任何UE(上行和下行),则对相邻基站没有干扰。
上述指示信息可以通过基站发射物理控制格式指示信道来给出。
上述物理控制格式指示信道可以占用一个子帧的第一个符号的部分或全部资源单元。
上述物理控制格式指示信道可以占用一个子帧的第一个符号的部分资源单元。如图8-9所示。图8表示物理控制格式指示信道总共占用了16个RE;图9表示物理控制格式指示信道总共占用了16x62=992个RE(2头各空着4个RE)。
上述物理控制格式指示信道使用的CFI值为1。如果LTE-U是以CA方式运行的,那么控制信道(PDCCH/EPDCCH)来自授权载波;如果LTE-U是独立运营的,那么LTE-U基站需要给UE配置EPDCCH(包括公共搜索空间)。
上述为1的CFI值表示该基站只占用当前子帧。
假定上述无线帧的前面5个子帧都发射了上述物理控制格式指示信道,且假设最前面4个子帧用于下行调度,且假设最后面一个子帧用于上行调度,则终端根据调度信息在上述下行子帧上接收基站发射的数据。
由于第五个子帧既有下行发射又有上行发射,因此它是一个混合上下行子帧。
在上述混合上下行子帧中,如果基站在该子帧的第一个符号上发射了信息,则终端在上述混合上下行子帧发射上行信道时,需要去除该子帧的最前面一个符号(如图12所示)或最前面二个符号(如图11所示)。
终端根据调度信息在上述混合上下行子帧上接收或/和发射数据。
采用本实施例提供的方案能减少在使用非授权载波时的相邻基站之间的干扰、指示相邻基站,自己这一基站需要使用非授权载波多长时间。
实施例四:
基站在每个无线帧的第一个符号上发射用于指示第一基站占用非授权载波的指示信息(即PCFICH),如图7所示。
基站把一个无线帧中的每个子帧都可配成完全空白的子帧。如果基站没有调度任何UE(上行和下行),则对相邻基站没有干扰。
上述指示信息可以通过基站发射物理控制格式指示信道来给出。
上述物理控制格式指示信道可以占用一个子帧的第一个符号的部分或全部资源单元。
上述物理控制格式指示信道可以占用一个子帧的第一个符号的部分资源单元。如图8-9所示。图8表示物理控制格式指示信道总共占用了16个RE;图9表示物理控制格式指示信道总共占用了16x62=992个RE(2头各空着4个RE)。
上述物理控制格式指示信道使用的CFI值为0。如果LTE-U是以CA方式运行的,那么控制信道(PDCCH/EPDCCH)来自授权载波;如果LTE-U是独立运营的,那么LTE-U基站需要给UE配置EPDCCH(包括公共搜索空间)。
上述为0的CFI值表示该基站只占用当前子帧。
假定上述无线帧的前面5个子帧都发射了上述物理控制格式指示信道,且假设最前面4个子帧用于下行调度,且假设最后面一个子帧的前面一半的物理资源块(PRB)用于上行调度,后面一半的物理资源块(PRB)用于下行调度(如图13所示)。
由于第五个子帧既有下行发射又有上行发射,因此它是一个混合上下行子帧。
在上述混合上下行子帧中,如果基站在该子帧的第一个符号上发射了信息,则终端在上述混合上下行子帧发射上行信道时,需要去除该子帧的最前面一个符号(如图12图所示)或最前面二个符号(如图11所示)。
终端根据调度信息在上述混合上下行子帧上接收或/和发射数据。
实施例五:
基站在每个无线帧的第一个符号上发射用于指示第一基站占用非授权载波的指示信息(即PCFICH),如图7所示。
基站把一个无线帧中的每个子帧都可配成完全空白的子帧。如果基站没有调度任何UE(上行和下行),则对相邻基站没有干扰。
上述指示信息可以通过基站发射物理控制格式指示信道来给出。
上述物理控制格式指示信道可以占用一个子帧的第一个符号的部分资源单元。如图8-9所示。图8表示物理控制格式指示信道总共占用了16个RE;图9表示物理控制格式指示信道总共占用了16xN个RE,N表示控制信道重复次数。
上述物理控制格式指示信道使用的CFI值为4。如果LTE-U是以CA方式运行的,那么控制信道(PDCCH/EPDCCH)来自授权载波;如果LTE-U是独立运营的,那么LTE-U基站需要给UE配置EPDCCH(包括公共搜索空间)。
上述重复次数表示基站占用的子帧数目。例如,假定N=62表示“占用整个无线帧(即,全部10个子帧)”,N=61表示“占用后续的9个子帧”,N=60表示“占用后续的8个子帧”,N=59表示“占用后续的7个子帧”,N=58表示“占用后续的6个子帧”,N=57表示“占用后续的5个子帧”,N=56表示“占用后续的4个子帧”,N=55表示“占用后续的3个子帧”,N=54表示“占用后续的2个子帧”,N=53表示“占用当前子帧”。
现假定N=62,则基站占用10子帧,且假定上述10个子帧都用于下行调度,则终端根据调度信息在上述下行子帧上接收基站发射的数据。
本实施例提供的方案同样可以减少在使用非授权载波时的相邻基站之间的干扰、指示相邻基站,自己这一基站需要使用非授权载波多长时间。
实施例六:
基站在每个无线帧的第一个符号上发射用于指示第一基站占用非授权载波的指示信息(即PCFICH),如图7所示。
基站把一个无线帧中的每个子帧都可配成完全空白的子帧。如果基站没有调度任何UE(上行和下行),则对相邻基站没有干扰。
上述指示信息可以通过基站发射物理控制格式指示信道来给出。
上述物理控制格式指示信道可以占用一个子帧的第一个符号的部分资源单元。假设有2个基站,第一个基站在前面50个PRB上面的第一个符号发射PCFICH(系统带宽为100个PRB)且在后面50个PRB的第一个符号上面没有任何的信道/信号发射,第二个基站在后面50个PRB上面的第一个符号发射PCFICH(系统带宽为100个PRB)且在前面50个PRB的第一个符号上面没有任何的信道/信号发射。基站通过接收没有自己的PCFICH发射的那些PRB上面的PCFICH(可用不同的天线实现接收/发射的分离实现),即可知道是否发生了碰撞。知道发生了碰撞之后,基站可进行时间回退。
上述物理控制格式指示信道使用的CFI值为4。如果LTE-U是以CA方式运行的,那么控制信道(PDCCH/EPDCCH)来自授权载波;如果LTE-U是独立运营的,那么LTE-U基站需要给UE配置EPDCCH(包括公共搜索空间)。
上述为4的CFI值表示该基站占用整个无线帧(即,全部10个子帧)。
假定上述10个子帧都用于下行调度,则终端根据调度信息在上述下行子帧上接收基站发射的数据。
本实施例提供的方案能减少在使用非授权载波时的相邻基站之间的干扰、指示相邻基站,自己这一基站需要使用非授权载波多长时间。
在另外一个实施例中,还提供了一种软件,该软件用于执行上述实施例及优选实施方式中描述的技术方案。
在另外一个实施例中,还提供了一种存储介质,该存储介质中存储有上述软件,该存储介质包括但不限于:光盘、软盘、硬盘、可擦写存储器等。
显然,本领域的技术人员应该明白,上述的本发明的各模块或各步骤可以用通用的计算装置来实现,它们可以集中在单个的计算装置上,或者分布在多个计算装置所组成的网络上,可选地,它们可以用计算装置可执行的程序代码来实现,从而,可以将它们存储在存储装置中由计算装置来执行,并且在某些情况下,可以以不同于此处的顺序执行所示出或描述的步骤,或者将它们分别制作成各个集成电路模块,或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样,本发明不限制于任何特定的硬件和软件结合。
以上仅为本发明的优选实施例而已,并不用于限制本发明,对于本领域的技术人员来说,本发明可以有各种更改和变化。凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
工业实用性
基于本发明实施例提供的上述技术方案,采用第一基站向第二基站或终端发送用于指示第一基站占用非授权载波的指示信息的技术手段,解决了相关技术中,尚无减少在使用非授权载波时的相邻基站之间的干扰的解决方案等技术问题,从而可以避免或减少使用非授权载波时相邻基站之间的干扰。

Claims (16)

  1. 一种非授权载波的协调方法,包括:
    第一基站获取用于指示所述第一基站占用非授权载波的指示信息;
    所述第一基站向第二基站和/或终端发送指示信息。
  2. 根据权利要求1所述的方法,其中,所述第一基站向第二基站和/或终端发送指示信息,包括以下之一:
    所述第一基站在每个无线帧的第一个符号上发送所述指示信息;
    所述第一基站在每个子帧的第一个符号上发送所述指示信息。
  3. 根据权利要求1所述的方法,其中,所述第一基站占用非授权载波包括以下至少之一:
    所述第一基站是否占用所述非授权载波信息;所述第一基站占用所述非授权载波的持续时间。
  4. 根据权利要求1所述的方法,其中,第一基站获取用于指示所述第一基站占用非授权载波的指示信息,包括:
    所述第一基站通过所述第一基站发送物理控制格式指示信道来确定。
  5. 根据权利要求4所述的方法,其中,所述第一基站通过所述第一基站发送物理控制格式指示信道来确定,包括以下之一:
    所述第一基站通过发送所述物理控制格式指示信道的重复次数来确定;
    所述第一基站通过在发送所述物理控制格式指示信道时,所述物理控制格式指示信道在一个子帧中所占用的第一个符号的部分或全部资源单元来确定;
    所述第一基站通过在所述物理控制格式指示信道上发送已知的数字序列来确定;
    所述第一基站通过所述物理控制格式指示信道所占用资源单元的偏移量来确定。
  6. 一种非授权载波的协调方法,包括:
    第二基站接收来自第一基站的用于指示所述第一基站占用非授权载波的指示信息;
    所述第二基站按照所述指示信息协调所述第二基站对所述非授权载波的使用。
  7. 根据权利要求6所述的方法,其中,第二基站接收来自第一基站的用于指示所述第一基站占用非授权载波的指示信息,包括以下之一:
    所述第二基站在每个无线帧的第一个符号上接收所述指示信息;
    所述第二基站在每个子帧的第一个符号上接收所述指示信息。
  8. 一种非授权载波的协调处理方法,包括:
    终端接收自第一基站的无线帧,以及来自于所述第一基站的调度信息和/或物理控制格式指示信道,其中,所述无线帧中携带有用于指示所述第一基站占用非授权载波的指示信息;
    所述终端根据所述调度信息和/或所述物理控制格式指示信道确定所述无线帧的子帧类型,其中,该类型包括:下行子帧、上行子帧和混合上下行子帧;
    所述终端根据所述调度信息在所述类型指示的子帧上发送和/或接收数据。
  9. 根据权利要求8所述的方法,其中,在每个所述无线帧或每个所述子帧的第一个符号上携带所述指示信息。
  10. 根据权利要求8所述的方法,其中,
    所述混合上下行子帧在时间上包含基站的发射时间和终端的发射时间;
    所述混合上下行子帧在频率上包含基站发射的频率资源和终端发射的频率资源;
    所述混合上下行子帧在时间和频率资源上包含基站发射的资源和终端发射的资源;
    在所述混合上下行子帧中,如果基站在所述混合上下行子帧的第一个符号上发射了信息,则终端在上述混合上下行子帧发射上行信道时,去除所述混合上下行子帧的第一个符号或最前面两个符号。
  11. 一种非授权载波的协调装置,位于第一基站中,包括:
    获取模块,设置为获取用于指示所述第一基站占用非授权载波的指示信息;
    发送模块,设置为向第二基站和/或终端发送指示信息。
  12. 根据权利要求11所述的装置,其中,所述发送模块,设置为在每个无线帧或每个子帧的第一个符号上发送所述指示信息。
  13. 一种非授权载波的协调装置,应用于第二基站,包括:
    接收模块,设置为接收来自第一基站的用于指示所述第一基站占用非授权载波的指示信息;
    协调模块,设置为按照所述指示信息协调所述第二基站对所述非授权载波的使用。
  14. 根据权利要求13所述的装置,其中,所述接收模块,设置为在每个无线帧或每个子帧的第一个符号上接收所述指示信息。
  15. 一种非授权载波的协调处理装置,包括:
    接收模块,设置为接收自第一基站的无线帧,以及来自于所述第一基站的调度信息和/或物理控制格式指示信道,其中,所述无线帧中携带有用于指示所述第一基站占用非授权载波的指示信息;
    确定模块,设置为根据所述调度信息和/或所述物理控制格式指示信道确定所述无线帧的子帧的类型,其中,该类型包括:下行子帧、上行子帧和混合上下行子帧;
    通信模块,设置为根据所述调度信息在所述类型指示的子帧上发送和/或接收数据。
  16. 根据权利要求15所述的装置,其中,所述接收模块还设置为在以下情况下接收所述无线帧:在每个所述无线帧或每个所述子帧的第一个符号上携带所述指示信息。
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