WO2016123772A1 - 一种传输业务数据的方法和装置 - Google Patents

一种传输业务数据的方法和装置 Download PDF

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Publication number
WO2016123772A1
WO2016123772A1 PCT/CN2015/072289 CN2015072289W WO2016123772A1 WO 2016123772 A1 WO2016123772 A1 WO 2016123772A1 CN 2015072289 W CN2015072289 W CN 2015072289W WO 2016123772 A1 WO2016123772 A1 WO 2016123772A1
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WIPO (PCT)
Prior art keywords
service data
base station
spectrum
terminal
subframe
Prior art date
Application number
PCT/CN2015/072289
Other languages
English (en)
French (fr)
Inventor
黄曲芳
曾清海
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to BR112017016834A priority Critical patent/BR112017016834A2/pt
Priority to KR1020177024478A priority patent/KR101981151B1/ko
Priority to CN201580075116.4A priority patent/CN107211276B/zh
Priority to JP2017541322A priority patent/JP6517354B2/ja
Priority to PCT/CN2015/072289 priority patent/WO2016123772A1/zh
Priority to EP15880728.9A priority patent/EP3247145B1/en
Publication of WO2016123772A1 publication Critical patent/WO2016123772A1/zh
Priority to US15/667,797 priority patent/US10244400B2/en

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    • 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
    • H04W16/14Spectrum sharing arrangements between different networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0055Transmission or use of information for re-establishing the radio link
    • H04W36/0072Transmission or use of information for re-establishing the radio link of resource information of target access point
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/16Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18Negotiating wireless communication parameters
    • H04W28/20Negotiating bandwidth
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/38TPC being performed in particular situations
    • H04W52/40TPC being performed in particular situations during macro-diversity or soft handoff
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/7097Interference-related aspects
    • H04B1/7103Interference-related aspects the interference being multiple access interference
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/02Arrangements for optimising operational condition
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/16Performing reselection for specific purposes
    • H04W36/165Performing reselection for specific purposes for reducing network power consumption
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/30Resource management for broadcast services

Definitions

  • the present invention relates to the field of communications, and in particular, to a method and apparatus for transmitting service data.
  • the base station usually sends service data to the terminal only through the spectrum occupied by the primary cell.
  • the resources of the spectrum occupied by the primary cell are poor, for example, the wireless signal strength of the spectrum.
  • the base station has a low uplink/downlink rate, the base station uses the spectrum occupied by other cells to transmit service data when the primary cell transmission service data is congested.
  • the prior art does not consider the problem. It can be seen that the utilization rate of the spectrum in the prior art is low.
  • the present invention provides a method and apparatus for transmitting service data to solve the problem of low spectrum utilization in the prior art.
  • a method of transmitting service data including:
  • the base station acquires usage rights of at least one first spectrum
  • the base station transmits a message to the terminal by using the second spectrum broadcast service, where the service migration message is used to indicate that the terminal receives service data on the at least one first frequency spectrum;
  • the base station sends the service data to the terminal by using the at least one first frequency spectrum.
  • the service migration message includes: frequency information of the at least one first spectrum, a cell identifier of a cell occupying the at least one first spectrum, and the Business identification of business data.
  • the base station obtains usage rights of M first spectrums, where M is a positive integer greater than or equal to 1. Sending, by the base station, the service data to the location by using the at least one first spectrum
  • the terminal specifically includes:
  • the base station sends a scheduling indication message corresponding to the service data to the terminal, where the scheduling indication message includes a transport channel identifier of the service data, where the transport channel identifier is used to indicate a transport channel for transmitting the service data;
  • the base station sends the service data by using subframes on the M first spectrums.
  • the base station obtains usage rights of the M first spectrums, where For a positive integer greater than 1, the sending, by the base station, the service data to the terminal by using the at least one first spectrum includes:
  • the base station sends a scheduling indication message corresponding to the service data to the terminal, where the scheduling indication message includes a transport channel identifier of the service data, and a cell identifier of an unlicensed cell occupying N first spectrums,
  • the transport channel identifier is used to indicate a transport channel for transmitting the service data;
  • the N first spectrums are any N first spectrums of the M first spectrums, where N is a positive integer, and 1 ⁇ N ⁇ M;
  • the base station sends the service data by using subframes on the N first frequency bands.
  • the base station by using the at least one first spectrum, The sending of the service data to the terminal specifically includes:
  • the base station sends the service data to the terminal by using the dedicated subframe.
  • the configuration information of the dedicated subframe includes the dedicated subframe The period of time occupied or the number of dedicated subframes.
  • the configuration information of the dedicated subframe includes a bit bitmap, where The bit bitmap is used to indicate a dedicated subframe carrying the service data.
  • the method further includes:
  • the base station carries indication information in a last subframe of the dedicated subframe, where the indication information is used by the terminal to determine whether to perform blind detection on a subsequent subframe, and the blind detection is used to determine the subsequent subframe. Whether the new business data is carried in the frame.
  • the service data is a multimedia broadcast multicast service MBMS data, or , unicast business data.
  • the first spectrum is an unlicensed spectrum
  • the second The spectrum is the licensed spectrum
  • a method of transmitting service data including:
  • the service migration message includes: frequency information of the at least one first spectrum, a cell identifier of a cell occupying the at least one first spectrum, and the Business identification of business data.
  • the base station obtains usage rights of M first spectrums, where M is a positive integer greater than 1,
  • M is a positive integer greater than 1
  • the receiving, by the terminal, the service data that is sent by the base station by using the at least one first spectrum according to the service migration message specifically includes:
  • a scheduling indication message sent by the base station where the scheduling indication message includes a transport channel identifier of the service data, where the transport channel identifier is used to indicate a transport channel for transmitting the service data;
  • the terminal acquires the service data carried in the subframe according to the scheduling indication message.
  • the base station obtains the usage rights of the M first spectrums, where M is a positive integer greater than 1, and the terminal receives the base station according to the service migration message.
  • the service data that is sent by the at least one first spectrum specifically includes:
  • the terminal Receiving, by the terminal, a scheduling indication message sent by the base station, where the scheduling indication message includes a transport channel identifier of the service data, and a cell identifier of an unlicensed cell occupying N first spectrums, where the transport channel identifier is used for a transmission channel indicating the transmission of the service data;
  • the N first spectrums are any N first spectrums of the M first spectrums, where N is a positive integer, and 1 ⁇ N ⁇ M;
  • the terminal acquires the service data carried in the subframes on the N first spectrums according to the scheduling indication message.
  • the terminal receives the base station according to the service migration message
  • the service data sent by the at least one first spectrum specifically includes:
  • the terminal acquires the service data carried in the dedicated subframe on the at least one first frequency spectrum according to the service migration message, the configuration information of the dedicated subframe, and the transmission channel information of the service data.
  • the configuration information of the dedicated subframe includes a time period occupied by the dedicated subframe or a number of the dedicated subframe.
  • the configuration information of the dedicated subframe includes a bit bitmap, where The bit bitmap is used to indicate a dedicated subframe carrying the service data.
  • the method further includes: determining, by the terminal, whether to perform blind detection on a subsequent subframe according to the indication information carried in the last subframe in the dedicated subframe, The blind check is used to determine whether new service data is carried in the subsequent subframe.
  • the service data is a multimedia broadcast multicast service MBMS data, or , unicast business data.
  • a base station including:
  • An obtaining unit configured to acquire usage rights of at least one first spectrum
  • a message broadcast unit configured to: migrate a message to the terminal by using the second spectrum broadcast service, where the service migration message is used to indicate that the terminal receives service data on the at least one first frequency spectrum;
  • a data sending unit configured to send the service data to the terminal by using the at least one first spectrum.
  • the service migration message includes: frequency information of the at least one first spectrum, a cell identifier of a cell occupying the at least one first spectrum, and the Business identification of business data.
  • the base station obtains usage rights of M first spectrums, where M is a positive integer greater than 1,
  • the data sending unit is specifically used to:
  • the scheduling indication message includes a transport channel identifier of the service data, where the transport channel identifier is used to indicate a transport channel for transmitting the service data;
  • the base station obtains usage rights of the M first spectrums, where For a positive integer greater than 1, the data sending unit is specifically configured to:
  • the scheduling indication message includes a transport channel identifier of the service data, and a cell identifier of an unlicensed cell occupying N first spectrums, where the transport channel identifier is a transmission channel for indicating the transmission of the service data;
  • the N first spectrums are any N first spectrums of the M first spectrums, where N is a positive integer, and 1 ⁇ N ⁇ M;
  • the data sending unit is specifically configured to:
  • the service data is transmitted to the terminal through the dedicated subframe.
  • the configuration information of the dedicated subframe includes the dedicated subframe The period of time occupied or the number of dedicated subframes.
  • the configuration information of the dedicated subframe includes a bit bitmap, where The bit bitmap is used to indicate a dedicated subframe carrying the service data.
  • the data sending unit is further configured to:
  • the first spectrum is an unlicensed spectrum
  • the second The spectrum is the licensed spectrum
  • a terminal including:
  • a message receiving unit configured to receive a service migration message that is sent by the base station by using the second spectrum, where the service migration message is used to indicate that the terminal receives service data on the at least one first frequency spectrum
  • a data acquiring unit configured to receive, according to the service migration message, the service data that is sent by the base station by using the at least one first spectrum.
  • the service migration message includes: frequency information of the at least one first spectrum, a cell identifier of a cell occupying the at least one first spectrum, and the Business identification of business data.
  • the base station obtains usage rights of M first spectrums, where M is a positive integer greater than 1,
  • the message receiving unit is further configured to receive a scheduling indication message sent by the base station, where the scheduling indication message includes a transport channel identifier of the service data, where the transport channel identifier is used to indicate a transport channel for transmitting the service data;
  • the base station obtains usage rights of the M first spectrums, where For a positive integer greater than 1, the message receiving unit is specifically configured to:
  • the scheduling indication message includes a transport channel identifier of the service data, and a cell identifier of an unlicensed cell occupying N first spectrums, where the transport channel identifier is used to indicate a transmission station a transmission channel of the service data;
  • the N first spectrums are any N first spectrums of the M first spectrums, where N is a positive integer, and 1 ⁇ N ⁇ M;
  • the data acquiring unit is further configured to: receive, according to the service migration message, a subframe that is sent by the base station by using the N first spectrums; and acquire, according to the scheduling indication message, the subframes of the N first spectrums The business data carried in.
  • the data acquiring unit is configured to acquire the at least one first frequency according to the service migration message, the configuration information of the dedicated subframe, and the transmission channel information of the service data.
  • the service data carried by the dedicated subframe on the spectrum.
  • the configuration information of the dedicated subframe includes a time period occupied by the dedicated subframe or a number of the dedicated subframe.
  • the configuration information of the dedicated subframe includes a bit bitmap, where The bit bitmap is used to indicate a dedicated subframe carrying the service data.
  • the terminal further includes a determining unit, The indication information carried in the last subframe in the frame determines whether to perform blind detection on the subsequent subframe, and the blind detection is used to determine whether the subsequent subframe carries new service data.
  • the first spectrum is an unlicensed spectrum
  • the second spectrum is To authorize the spectrum
  • a base station comprising: a bus, and a processor, a memory, an input module, and an output module connected to the bus; the memory is configured to store an instruction; and the processor executes the instruction to:
  • the service migration message includes: frequency information of the at least one first spectrum, a cell identifier of a cell occupying the at least one first spectrum, and the Business identification of business data.
  • the base station obtains usage rights of M first spectrums, where M is a positive integer greater than or equal to 1.
  • the processor executing the instruction is specifically configured to:
  • the information includes a transport channel identifier of the service data, where the transport channel identifier is used to indicate a transport channel for transmitting the service data;
  • the base station obtains usage rights of the M first spectrums, where For a positive integer greater than 1, the processor executes the instructions specifically for:
  • the scheduling indication message includes a transport channel identifier of the service data, and a cell identifier of an unlicensed cell occupying N first spectrums, where the transport channel identifier is a transmission channel for indicating the transmission of the service data;
  • the N first spectrums are any N first spectrums of the M first spectrums, where N is a positive integer, and 1 ⁇ N ⁇ M;
  • the executing the instruction by the processor is specifically used to:
  • the service data is transmitted to the terminal through the dedicated subframe.
  • the configuration information of the dedicated subframe includes the dedicated subframe The period of time occupied or the number of dedicated subframes.
  • the configuration information of the dedicated subframe includes a bit bitmap, where The bit bitmap is used to indicate a dedicated subframe carrying the service data.
  • the executing the instruction by the processor is further configured to:
  • the first spectrum is an unlicensed spectrum
  • the second spectrum is To authorize the spectrum
  • a terminal comprising: a bus, and a processor, a memory, an input module, and an output module connected to the bus; the memory is configured to store an instruction; and the processor executes the instruction to:
  • the service migration message includes: frequency information of the at least one first spectrum, a cell identifier of a cell occupying the at least one first spectrum, and the Business identification of business data.
  • the base station obtains usage rights of M first spectrums, where M is a positive integer greater than 1,
  • the processor executes the instructions specifically for:
  • the scheduling indication message includes a transport channel identifier of the service data, where the transport channel identifier is used to indicate a transport channel for transmitting the service data;
  • the base station obtains the usage rights of the M first spectrums, where For a positive integer greater than 1, the processor executes the instructions specifically for:
  • the scheduling indication message includes a transport channel identifier of the service data, and a cell identifier of an unlicensed cell occupying N first spectrums, where the transport channel identifier is used to indicate a transmission station a transport channel of the service data;
  • the N first spectrums are any N first spectrums of the M first spectrums, where N is a positive integer, and 1 ⁇ N ⁇ M;
  • the third possible implementation manner in a fourth possible implementation, the
  • the configuration information of the dedicated subframe and the transport channel information of the service data acquire the service data carried in the dedicated subframe on the at least one first frequency spectrum.
  • the fourth possible implementation manner in the fifth possible implementation manner, if the dedicated subframes all carry the service data, Then, the configuration information of the dedicated subframe includes a time period occupied by the dedicated subframe or a number of the dedicated subframe.
  • the configuration information of the dedicated subframe includes a bit bitmap, where The bit bitmap is used to indicate a dedicated subframe carrying the service data.
  • the executing the instructions by the processor is further used to:
  • the first spectrum is a first spectrum
  • the second spectrum is For the second spectrum
  • the base station obtains the right to use at least one first spectrum, and passes the second spectrum.
  • the broadcast service migration message is used to instruct the terminal to receive service data in the at least one first frequency spectrum, and send the service data to the terminal through the at least one first frequency spectrum.
  • the base station can send the service data to the terminal by using the second spectrum, and can also send the service data to the terminal through the at least one first spectrum, thereby improving the spectrum utilization rate, speeding up the rate at which the terminal obtains the service data, and improving the user experience. .
  • FIG. 1 is a schematic flowchart of a method for transmitting service data according to an embodiment of the present disclosure
  • FIG. 2 is a schematic diagram of an authorized cell and an unlicensed cell transmitting a subframe according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of an MBSFN subframe according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic diagram of using a DCI to indicate service data carried in multiple subframes on an unlicensed spectrum according to an embodiment of the present disclosure
  • FIG. 5 is a schematic diagram of the service data carried by a subframe on two unlicensed spectrums by using one DCI according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram of configuring a dedicated subframe on an unlicensed spectrum according to an embodiment of the present disclosure
  • FIG. 7 is a schematic diagram of another configuration of a dedicated subframe on an unlicensed spectrum according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic flowchart diagram of another method for transmitting service data according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic flowchart diagram of still another method for transmitting service data according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram of another base station according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic structural diagram of another terminal according to an embodiment of the present invention.
  • the embodiment of the invention provides a method for transmitting service data. As shown in FIG. 1 , the method includes:
  • the base station acquires usage rights of at least one first frequency spectrum.
  • the base station migrates the message to the terminal by using the second spectrum broadcast service, where the service migration message is used to indicate that the terminal receives the service data on the at least one first frequency spectrum.
  • the base station sends the service data to the terminal by using the at least one first spectrum.
  • the first spectrum and the second spectrum are both licensed spectrums, so that when the resources of the second spectrum are poor, for example, the wireless signal strength is weak, and the uplink and downlink rates are low, the base station may be second.
  • the service data transmitted on the spectrum is migrated to the first spectrum with better resources for transmission, which improves spectrum utilization, speeds up the transmission of service data, and improves the user experience.
  • the first spectrum is an unlicensed spectrum
  • the second spectrum is an authorized spectrum.
  • IEEE Institute of Engineers
  • 3GPP 3rd generation partnership project
  • each block in FIG. 1 represents a sub-frame, and the direction indicated by the arrow is the transmission direction of the sub-frame in time, that is, the terminal first receives the sub-frame A and then receives the sub-frame B.
  • the unlicensed spectrum is used as a dedicated carrier to transmit multimedia broadcast multicast service (MBMS) data
  • MBMS multimedia broadcast multicast service
  • the dedicated carrier transmitting the MBMS data requires the dedicated carrier to periodically send the MBMS control message. Since the unlicensed spectrum is not continuously valid, it cannot guarantee that the MBMS control message can be periodically sent. If the terminal fails to correctly receive the MBMS control message, The terminal cannot receive MBMS data correctly.
  • the base station is configured to transmit MBMS data in an unlicensed cell in a manner of a broadcast broadcast single frequency network (MBSFN).
  • the service migration message sent by the base station in the authorized cell includes control information of the MBSFN transmission.
  • the control information includes a system information block (SIB) 13, a multicast control channel (MCCH), and an MCCH change notification.
  • SIB 13 indicates the subframe position and period of the MCCH, and the modulation coding method used.
  • the MCCH is used to indicate the mapping relationship between the MBMS data and the MBMS transmission channel, and the subframe bitmap, the scheduling start position, the period, and the modulation coding mode used by each MBMS transmission channel.
  • the MCCH change notification is used to indicate that the MCCH content has been changed to notify the interested terminal to read the new content of the MCCH in time. Since the control information is transmitted in the authorized cell, and the control information of the MBSFN transmission of the unlicensed cell is indicated, the control information of the MBSFN transmission further includes indication information of the cell to which the control information belongs.
  • the base station determines the cell that transmits the MBMS data according to whether it obtains the right to use the unlicensed spectrum. If the base station obtains the right to use the unlicensed spectrum, the MBMS data is transmitted through the unlicensed cell, and if the base station does not obtain the right to use the unlicensed spectrum, the MBMS data is transmitted through the licensed spectrum.
  • the base station may send the MBMS data in the authorized cell in a group scheduling manner.
  • the authorized cell simultaneously indicates the mapping relationship between the MBMS service and the group radio network temporary identifier (Group-RNTI), and the group scheduling signaling of the MBMS data uses the corresponding Group-RNTI to perform the cyclic redundancy check code. (CRC, cyclic redundancy check) scrambling.
  • Group-RNTI group radio network temporary identifier
  • CRC cyclic redundancy check
  • the base station needs to notify the terminal to return to the unlicensed spectrum to receive the MBMS data.
  • the base station may push back several subframes to transmit the transmission of the MBMS data to the unlicensed cell.
  • the base station needs to notify the terminal before losing the right to use the unlicensed spectrum (when it is known in advance when the right to use will be lost), so that the terminal can switch to the authorized cell to receive the MBMS data in time.
  • the service data transmitted by the base station to the terminal may be unicast service data or MBMS data.
  • the MBMS data can be transmitted on the unlicensed spectrum by using the hybrid carrier mode. That is, some subframes in the unlicensed cell are used to transmit MBMS data, and some subframes are not used to transmit MBMS data.
  • the MBMS data is transmitted by using a dedicated carrier mode on the licensed spectrum; and the MBMS data when congestion is transmitted by using the WiFi broadcast mode in the case of LTE-WiFi multi-stream transmission.
  • the base station performs on the carrier either as an MBSFN transmission or a group scheduled single-cell transmission.
  • the following describes in detail a method in which a base station transmits service data to a terminal in a case where the first spectrum is an unlicensed spectrum and the second spectrum is an authorized spectrum.
  • the base station can obtain the use right of the unlicensed spectrum.
  • the solid line box of the unlicensed cell shown in FIG. 2 indicates the subframe in the available time of the unlicensed spectrum of the base station, and the dotted line frame shown is the base station pair unauthorized. Subframes other than the available time of the spectrum.
  • the four subframes A, B, C, and D are subframes for transmitting MBMS data.
  • the subframe used for transmitting the MBMS data is referred to as an MBSFN subframe, and other non-MBSFN subframes may be used to send the unicast service data.
  • FIG. 2 shows that the base station acquires the right to use an unlicensed spectrum.
  • the base station can acquire the usage rights of multiple unlicensed spectrums at the same time, and transmit the service data through the subframes on the unlicensed spectrums within the available time of each unlicensed spectrum.
  • FIG. 3 is a schematic structural diagram of an MBSFN subframe, where the MBSFN subframe includes a physical downlink control channel (PDCCH) region and an MBMS transmission region, where the common search region of the PDCCH region can carry downlink control information.
  • DCI downlink control information
  • the terminal may perform a blind check on the common search area of the PDCCH area to determine whether the subframe carries MBMS data; the MBMS transmission area carries media intervention control Layer control unit (MAC CE, Medium access control control element) and MBMS data.
  • MAC CE Media intervention control Layer control unit
  • the base station sends the service migration message by using a specific subframe on the licensed spectrum, where the specific subframe is a subframe that is transmitted on the licensed spectrum before the base station sends the service data by using the at least one unlicensed spectrum.
  • the base station After the base station obtains the right to use the unlicensed spectrum, the base station carries the service migration message in the first MBSFN subframe on the licensed spectrum, as illustrated in FIG. 2, where the subframe B obtains the unlicensed spectrum. After the right to use, in the first MBSFN subframe on the licensed spectrum, the base station can carry the service migration message in the subframe B.
  • the service migration message may be sent by using the non-MBSFN subframe in the embodiment of the present invention, which is not limited by the disclosure.
  • the base station may broadcast the service migration message to the terminal in the form of DCI or MACCE in the MBSFN subframe, where the DCI is placed in the public search area of the MBSFN subframe, and the MAC CE is placed.
  • the base station may also carry the service migration message by using radio resource control (RRC) signaling, which is not limited by the present invention.
  • RRC radio resource control
  • the base station after acquiring the use right of the unlicensed spectrum, the base station does not necessarily indicate that the service data must be migrated to the unlicensed spectrum, and the migration condition may be preset by the user. For example, when the service data on the licensed spectrum is congested, the base station may migrate part of the service data to the unlicensed spectrum for transmission. In this case, the base station may determine the authorized spectrum transmission before migrating the message through the authorized spectrum broadcast service. Business data is congested.
  • the sending, by the base station, the service data to the terminal by using the unlicensed spectrum may include the following two methods:
  • Manner 1 The base station sends the service data to the terminal by using at least one unlicensed spectrum in a subframe scheduling manner.
  • the service migration message may include: frequency information of the at least one unlicensed spectrum, a cell identifier of an unlicensed cell occupying the at least one unlicensed spectrum, and a service identifier of the service data.
  • M is a positive integer greater than or equal to 1.
  • the base station sends a scheduling indication message corresponding to the service data to the terminal, where the scheduling indication message includes a transport channel identifier of the service data, where the transport channel identifier is used to indicate a transport channel for transmitting the service data, and passes the M The sub-frames on the unlicensed spectrum send the service data.
  • the terminal After receiving the service migration message, the terminal listens to the unlicensed cell corresponding to the unlicensed cell identifier, and performs blind detection on the subframe on the unlicensed spectrum according to the frequency information. The terminal performs blind detection on the subframe to determine whether the subframe carries service data.
  • the service identifier is in one-to-one correspondence with the service delivered by the base station. Because the base station may simultaneously transmit data of multiple services, the terminal may obtain the required information of the terminal from data of multiple services according to the service identifier. Business data.
  • the base station may send the scheduling indication message by using a subframe on the licensed spectrum or a subframe on the unlicensed spectrum, where the scheduling indication message may be used to indicate that the service data carried by multiple subframes on an unlicensed spectrum is occupied.
  • the indication message ie, the DCI indicates that the terminal acquires service data in two discontinuous MBSFN subframes on the unlicensed spectrum.
  • the base station when the base station obtains the usage rights of the multiple unlicensed spectrums, the base station does not necessarily use all the unlicensed spectrum to send the service data every time. Specifically, when the base station acquires the use rights of the M unlicensed spectrums, If M is a positive integer greater than 1, the base station may send a scheduling indication message corresponding to the service data to the terminal, where the scheduling indication message includes a transport channel identifier of the service data and a cell of an unlicensed cell occupying N unlicensed spectrums.
  • the transport channel identifier is used to indicate a transport channel for transmitting the service data, where the N unlicensed spectrums are any N unlicensed spectrums of the M unlicensed spectrums, where N is a positive integer, and 1 ⁇ N ⁇ M.
  • the base station sends the service data by using subframes on the N unlicensed spectrums.
  • the cell identifier of the unlicensed cell in the service migration message may refer to the cell identifier of the unlicensed cell that the base station may transmit the service data, for example, the base station obtains the first
  • the cell identifier carried in the service migration message is the cell identifier of the unlicensed cell occupying the first unlicensed spectrum and the unauthorized use of the second unlicensed spectrum.
  • the cell identifier of the cell, and the cell identifier in the scheduling indication message may be the cell identifier of the unlicensed cell that currently sends the service data, which may be the cell identifier of the unlicensed cell occupying the first unlicensed spectrum, and/or The cell identity of the unlicensed cell occupying the second unlicensed spectrum.
  • the base station may select one or more unlicensed spectrums for transmitting the service data among the plurality of unlicensed spectrums.
  • the base station may be unauthorized.
  • a scheduling indication message is sent by using a DCI or multiple DCIs on the spectrum or the licensed spectrum. It is noted that when the base station uses one DCI to indicate service data carried in multiple subframes, multiple service data of different unlicensed cells are in their corresponding sub- The physical resource locations occupied on the frame must be the same.
  • the base station acquires the usage rights of the unlicensed spectrum of the first unlicensed cell and the second unlicensed cell, respectively, where the first unlicensed cell occupies the first unlicensed spectrum, and the second unlicensed cell A second unlicensed spectrum is occupied.
  • the service migration message includes a cell identifier of the first unlicensed cell, a cell identifier of the second unlicensed cell, frequency information of the first unlicensed spectrum, and the first The frequency information of the unlicensed spectrum, and the service identifier of the service data transmitted by the first unlicensed cell, the service identifier of the service data transmitted by the second authorized cell, the scheduling indication message includes, the service migration message includes the first The cell identifier of the unlicensed cell, the cell identifier of the second unlicensed cell, the transport channel identifier of the service transmitted by the first authorized cell, and the transport channel identifier of the service transmitted by the second authorized cell.
  • the retransmission of the service data may be performed by using the mode 1. Specifically, when the terminal fails to receive the unauthorized cell or fails to receive the service data correctly, the terminal may notify the authorized cell or the unlicensed cell. Sending a retransmission indication message, where the retransmission indication message may include a sequence number of a service data packet that the terminal does not receive, or a subframe number that does not correctly receive the service data, so that the base station receives the retransmission After the message is indicated, the service data that needs to be retransmitted is determined according to the sequence number or the subframe number, and the service data is retransmitted to the terminal by the authorized cell or the unlicensed cell. At this time, the scheduling indication message may further include a retransmission identifier, so that the terminal can distinguish the retransmitted service data.
  • the base station may also retransmit the service data by using another cell outside the unlicensed cell, where the other cell may be an authorized cell or another unlicensed cell.
  • Base station Retransmission of service data by another cell can solve the problem that the terminal cannot receive data due to the "hidden node". For example, a certain terminal is in the first cell and the second cell at the same time, and the base station of the first cell and the base station of the second cell are far apart from each other and cannot detect the existence of the other party. At this time, the base station of the first cell The base station of the second cell is a hidden node, so that if the first cell and the second cell simultaneously send service data to the terminal, causing data collision, the terminal cannot receive data.
  • the terminal Since the time interval of the retransmission of the first cell and the second cell is the same, if the two base stations retransmitted through the same cell, the terminal may still be unable to receive the retransmitted service data due to data collision. At this time, the base station may pass another The cell retransmits to solve the problem of hidden nodes.
  • the foregoing method for retransmitting service data by using an unlicensed cell reduces the packet loss rate of the terminal.
  • Manner 2 The base station sends configuration information of the dedicated subframe on the at least one unlicensed spectrum and the transmission channel information of the service data to the terminal, and the base station sends the service data to the terminal by using the dedicated subframe.
  • the meaning of the dedicated subframe may be a subframe dedicated to carrying service data, for example, consecutive subframes in a certain period of time may be regarded as dedicated subframes; or used for transmitting services indicated by configuration information. Subframes of data can also be considered as dedicated sub-frames.
  • the base station may send the configuration information of the dedicated subframe and the transmission channel information of the service data to the terminal by using the service migration message, that is, in the second mode, the service migration message includes the at least one un The frequency information of the licensed spectrum, the cell identifier of the unlicensed cell occupying the at least one unlicensed spectrum, the service identifier of the service data, the configuration information of the dedicated subframe, and the transmission channel information of the service data.
  • the base station may also transmit the configuration information of the dedicated subframe and the transmission of the service data by using a subframe on the licensed spectrum or the unlicensed spectrum.
  • the channel information is sent to the terminal, which is not limited by the present invention.
  • the configuration information of the dedicated subframe may be a time period occupied by the dedicated subframe, or the number of the dedicated subframes.
  • the thick line block in the figure is a dedicated subframe on the unlicensed spectrum
  • the direction indicated by the arrow is the transmission direction of the subframe in time
  • the base station transmits the dedicated sub-subframe through the MBSFN subframe B.
  • the configuration information of the frame, and the transmission channel information of the dedicated subframe that carries the service data, where the configuration information of the dedicated subframe includes a time period occupied by the dedicated subframe/the number of the dedicated subframe, and the configuration information further includes The start position information of the dedicated subframe, as shown in FIG.
  • the start position information indicates that the subframe on the next unlicensed spectrum after the MBSFN subframe B is the first dedicated subframe, so that the terminal is After receiving the configuration information and the transmission channel information, the dedicated subframe of the corresponding time period is continuously received on the unlicensed spectrum according to the starting location information, or the base station counts the received subframe, and continuously receives 6 subframes.
  • the dedicated subframe is obtained, and the service data carried by the dedicated subframe is obtained according to the transport channel information and the service identifier in the service migration message, and the dedicated subframe does not need to be blindly checked.
  • the configuration information of the dedicated subframe includes a bitmap, where the bitmap is used to indicate a dedicated subframe that carries the service data.
  • the preset bit bitmap is a six-bit number: 101001, where each bit corresponds to one subframe, and if the bit takes a value of 0, it indicates that the subframe corresponding to the bit is an MBSFN-dedicated subframe, if The value of the bit is 1, indicating that the subframe corresponding to the bit is a non-MBSFN dedicated subframe.
  • the direction indicated by the arrow is the transmission direction of the subframe in time, and the base station and the terminal may pre-arrange the subframe in the MBSFN.
  • the subframe on the next unlicensed spectrum after B is the subframe corresponding to the first bit of the bitmap, and the subsequent bits are sequentially corresponding to the subsequent subframe.
  • the MBSFN subframe B carries a service migration message, and the service migration message includes the bit bitmap, and after receiving the service migration message, the terminal directly discards the non-MBSFN dedicated subframe according to the bitmap, according to the transmission.
  • the channel information and the service identifier acquire the MBMS data carried in the MBMSFN-specific subframe, and there is no need to perform blind detection on the subframe corresponding to the bitmap.
  • the base station and the terminal may also agree that when the bit value is 1, the subframe corresponding to the bit is an MBSFN-specific subframe, and when the bit value is 0, it indicates that the bit corresponds to The subframe is a non-MBSFN dedicated subframe, which is not limited by the present invention.
  • the base station carries indication information in a last subframe of the dedicated subframe, where the indication message is used by the terminal to determine whether to perform blind detection on a subsequent subframe, where the blind detection is used to determine a subsequent subframe. Whether to carry new business data.
  • the terminal may not perform blind detection on the subframe on the at least one unlicensed spectrum, if the indication information indicates the The base station may transmit the service data through the at least one unlicensed spectrum, and the terminal may perform blind detection on the subframe on the at least one unlicensed spectrum. In this way, the base station does not need to accurately determine the number of dedicated subframes in advance. For services with large fluctuations in data volume, for example, group group services, the number of dedicated subframes can be roughly set, and the amount of data transmitted is large, resulting in a large amount of data.
  • the excess data may be sent through the subsequent subframes, and the indication information is carried in the last subframe of the dedicated subframe, indicating that the terminal performs blind detection on the subsequent subframes, thus avoiding the dedicated subframe. Too many numbers are set, resulting in wasted subframes when transferring less data.
  • the subframes of the unlicensed spectrum are used to dynamically transmit the service data.
  • the terminal may perform blind detection on the subframes on the unlicensed spectrum to determine whether the subframe carries the service data.
  • the base station pre-fixes the dedicated subframe on the unlicensed spectrum for transmitting the service data, and sends the configuration information of the dedicated subframe to the terminal, so that the terminal does not need to use the dedicated subframe.
  • the base station may dynamically decide which subframes to use to transmit the service data according to the method of the first method, and implement The way is more flexible.
  • the base station when the right to use the at least one unlicensed spectrum ends, passes the authorized spectrum or the at least one unlicensed spectrum broadcast service backhaul message, where the service backhaul message is used to indicate that the terminal re-receives on the licensed spectrum.
  • Business data when the right to use the at least one unlicensed spectrum ends, passes the authorized spectrum or the at least one unlicensed spectrum broadcast service backhaul message, where the service backhaul message is used to indicate that the terminal re-receives on the licensed spectrum.
  • the base station can use the unlicensed spectrum to transmit the service data, which improves the utilization of the unlicensed spectrum, reduces the burden of the licensed spectrum transmission service data occupied by the primary cell, and improves the user experience.
  • the foregoing description is only for the case where the first spectrum is an unlicensed spectrum and the second spectrum is an authorized spectrum, but those skilled in the art should understand that the embodiment of the present invention is The same applies if both the first spectrum and the second spectrum are licensed spectrum.
  • the terminal receives a service migration message that is sent by the base station by using the second spectrum broadcast, where the service migration message is used to indicate that the terminal receives the service data on the at least one first frequency spectrum.
  • the terminal receives, according to the service migration message, the service data that is sent by the base station by using the at least one first spectrum.
  • the first spectrum and the second spectrum are both licensed spectrums, so that when the resources of the second spectrum are poor, for example, the wireless signal strength is weak, and the uplink and downlink rates are low, the base station may be second.
  • the service data transmitted on the spectrum is migrated to the first spectrum with better resources for transmission, which improves spectrum utilization, speeds up the transmission of service data, and improves the user experience.
  • the method for receiving the service data sent by the base station in the case where the first spectrum is an unlicensed spectrum and the second spectrum is an authorized spectrum is specifically described below.
  • the base station after acquiring the at least one unlicensed spectrum usage right, the base station sends a service migration message to the terminal by using the licensed spectrum, where the service migration message may include: the at least one unauthorized The frequency information of the spectrum, the cell identifier of the unlicensed cell occupying the at least one unlicensed spectrum, and the service identifier of the service data.
  • the terminal After receiving the service migration message, the terminal monitors the unlicensed cell corresponding to the unlicensed cell identifier, and performs blind detection on the subframe on the unlicensed spectrum according to the frequency information. The terminal performs blind detection on the subframe to determine whether the subframe carries service data.
  • the terminal may obtain the service data in the at least one unlicensed spectrum according to the service migration message, and may include the following two methods:
  • Manner 1 The terminal receives service data that is sent by the base station by using the at least one unlicensed spectrum in a scheduling manner.
  • the terminal monitors the unlicensed cell corresponding to the unlicensed cell identifier, and performs blind detection on the subframe on the unlicensed spectrum according to the frequency information, where the terminal is blindly detected.
  • the transport channel information is obtained according to the transport channel identifier, where the transport channel information is used to indicate the physical resource location occupied by the service data carried in the subframe, and the modulation and demodulation of the service data. the way.
  • the terminal further decodes the data at the physical resource location according to the modulation and demodulation manner, and obtains the service data required by the terminal from the decoded data according to the service identifier.
  • the base station When the base station obtains the usage rights of the multiple unlicensed spectrums, the base station does not necessarily use all the unlicensed spectrum to send the service data every time. Specifically, if the base station acquires the use rights of the M unlicensed spectrums, if the M is greater than 1, A positive integer, the terminal may receive a scheduling indication message sent by the base station, where the scheduling indication message includes a transport channel identifier of the service data, and a cell identifier of an unlicensed cell occupying N unlicensed spectrums, where the transport channel identifier is used to indicate Transmitting a transport channel of the service data; the N unlicensed spectrums are any N unlicensed spectrums of the M unlicensed spectrums, where N is a positive integer, and 1 ⁇ N ⁇ M; and according to the service migration message And receiving the subframe that is sent by the base station by using the N unlicensed spectrums; and acquiring the service data carried in the subframes on the N unlicensed spectrums according to the scheduling indication message.
  • the cell identifier of the unlicensed cell in the service migration message may refer to the cell identifier of the unlicensed cell that the base station may transmit the service data, for example, the base station obtains the first unlicensed spectrum and the second unlicensed spectrum.
  • the cell identity carried in the service migration message is the cell identity of the unlicensed cell occupying the first unlicensed spectrum and the cell identity of the unlicensed cell occupying the second unlicensed spectrum, and the scheduling indication is
  • the cell identifier in the message may be a cell identifier of an unlicensed cell that currently sends service data, which may be a cell identifier of an unlicensed cell occupying the first unlicensed spectrum, and/or occupying the second unlicensed spectrum.
  • the cell identity of the authorized cell may be a cell identifier of an unlicensed cell that currently sends service data, which may be a cell identifier of an unlicensed cell occupying the first unlicensed spectrum, and/or occupying the second unlicensed spectrum.
  • the base station may select one or more unlicensed spectrums for transmitting the service data among the plurality of unlicensed spectrums.
  • the base station may be unauthorized.
  • a scheduling indication message is sent by using a DCI or multiple DCIs on the spectrum or the licensed spectrum. It is noted that when the base station uses one DCI to indicate service data carried in multiple subframes, multiple service data of different unlicensed cells are in their corresponding sub- Physical resources occupied on the frame The location must be the same.
  • the terminal may send a retransmission indication message to the authorized cell or the unlicensed cell when the terminal fails to receive the service data or fails to receive the service data correctly, where the terminal sends the retransmission indication message to the authorized cell.
  • the transmission indication message may include a sequence number of the service data packet that the terminal does not receive, or a subframe number that does not correctly receive the service data, so that after receiving the retransmission indication message, the base station according to the serial number or the The subframe number determines the service data that needs to be retransmitted, and retransmits the service data to the terminal by the authorized cell or the unlicensed cell.
  • the scheduling indication message may further include a retransmission identifier, so that the terminal can distinguish the retransmitted service data.
  • the base station may also retransmit the service data by using another cell outside the unlicensed cell, where the other cell may be an authorized cell or another unlicensed cell.
  • the base station retransmits the service data through another cell to solve the problem that the terminal cannot receive data due to the "hidden node". For example, a certain terminal is in the first cell and the second cell at the same time, and the base station of the first cell and the base station of the second cell are far apart from each other and cannot detect the existence of the other party. At this time, the base station of the first cell The base station of the second cell is a hidden node, so that if the first cell and the second cell simultaneously send service data to the terminal, causing data collision, the terminal cannot receive data.
  • the terminal Since the time interval of the retransmission of the first cell and the second cell is the same, if the two base stations retransmitted through the same cell, the terminal may still be unable to receive the retransmitted service data due to data collision. At this time, the base station may pass another The cell retransmits to solve the problem of hidden nodes.
  • the foregoing method for retransmitting service data by using an unlicensed cell reduces the packet loss rate of the terminal.
  • Manner 2 The terminal receives the configuration information of the dedicated subframe sent by the base station and the transmission channel information of the service data, and obtains the at least the configuration information of the dedicated subframe and the transmission channel information of the service data according to the service migration message.
  • the service data carried by a dedicated subframe on an unlicensed spectrum.
  • the meaning of the dedicated subframe may be a subframe dedicated to carrying service data, for example, consecutive subframes in a certain period of time may be regarded as dedicated subframes; or used for transmitting services indicated by configuration information. Subframes of data can also be considered as dedicated sub-frames.
  • the base station may send the configuration information of the dedicated subframe and the transmission channel information of the service data to the terminal by using the service migration message, that is, in the second mode, the service migration message includes the at least one un The frequency information of the licensed spectrum, the cell identifier of the unlicensed cell occupying the at least one unlicensed spectrum, the service identifier of the service data, the configuration information of the dedicated subframe, and the transmission channel information of the service data.
  • the base station may also transmit the configuration information of the dedicated subframe and the transmission of the service data by using a subframe on the licensed spectrum or the unlicensed spectrum.
  • the channel information is sent to the terminal, which is not limited by the present invention.
  • the configuration information of the dedicated subframe may be a time period occupied by the dedicated subframe, or the number of the dedicated subframes.
  • the starting location of the dedicated subframe may be pre-agreed between the base station and the terminal.
  • the base station may send the configuration information and the transmission channel information of the service data through a previous subframe of the dedicated subframe.
  • the terminal After acquiring the configuration information and the transmission channel information of the service data in the subframe, the terminal directly receives the corresponding time period/the corresponding number of dedicated subframes from the next subframe, and according to the transmission channel information and the service.
  • the service identifier in the migration message acquires the service data carried in the dedicated subframe.
  • the base station may also notify the start position of the terminal-specific subframe every time. At this time, the configuration information further includes the start position information of the dedicated subframe.
  • the thick line block in the figure is a dedicated subframe on the unlicensed spectrum
  • the direction indicated by the arrow is the transmission direction of the subframe in time
  • the base station transmits the dedicated sub-subframe through the MBSFN subframe B.
  • the configuration information of the frame, and the transmission channel information of the dedicated subframe that carries the service data, where the configuration information of the dedicated subframe includes a time period occupied by the dedicated subframe/the number of the dedicated subframe, and the configuration information further includes The start position information of the dedicated subframe, as shown in FIG.
  • the start position information indicates that the subframe on the next unlicensed spectrum after the MBSFN subframe B is the first dedicated subframe, so that the terminal is After receiving the configuration information and the transmission channel information, the dedicated subframe of the corresponding time period is continuously received on the unlicensed spectrum according to the starting location information, or the base station counts the received subframe, and continuously receives 6 subframes.
  • the dedicated subframe is obtained, and the service data carried by the dedicated subframe is obtained according to the transport channel information and the service identifier in the service migration message, and the dedicated subframe does not need to be blindly checked.
  • the configuration information of the dedicated subframe includes a bit bitmap indicating a subframe in which the service data is carried in the dedicated subframe.
  • the MBSFN subframe B carries a service migration message, and the service migration message includes the bit bitmap, and after receiving the service migration message, the terminal directly discards the non-MBSFN dedicated subframe according to the bitmap, according to the transmission.
  • the channel information and the service identifier acquire the MBMS data carried in the MBMSFN-specific subframe, and there is no need to perform blind detection on the subframe corresponding to the bitmap.
  • the base station carries indication information in a last subframe of the dedicated subframe, where the indication message is used by the terminal to determine whether to perform blind detection on a subsequent subframe, where the blind detection is used to determine a subsequent subframe. Whether to carry new business data.
  • the terminal may not perform blind detection on the subframe on the at least one unlicensed spectrum, if the indication information indicates the The base station may transmit the service data through the at least one unlicensed spectrum, and the terminal may perform blind detection on the subframe on the at least one unlicensed spectrum. In this way, the base station does not need to accurately determine the number of dedicated subframes in advance. For services with large fluctuations in data volume, for example, group group services, the number of dedicated subframes can be roughly set, and the amount of data transmitted is large, resulting in a large amount of data.
  • the excess data may be sent through the subsequent subframes, and the indication information is carried in the last subframe of the dedicated subframe, indicating that the terminal performs blind detection on the subsequent subframes, thus avoiding the dedicated subframe. Too many numbers are set, resulting in wasted subframes when transferring less data.
  • the terminal receives the service backhaul message broadcast by the base station through the licensed spectrum or the at least one unlicensed spectrum broadcast, and re-receives the service data on the licensed spectrum according to the service backhaul message.
  • the foregoing description is only for the case where the first spectrum is an unlicensed spectrum and the second spectrum is an authorized spectrum, but those skilled in the art should understand that the embodiment of the present invention is in the first spectrum and the second. The same applies if the spectrum is licensed spectrum.
  • the embodiment of the present invention acquires a single by using a base station.
  • the use of the spectrum is not authorized, and the MBMS data is transmitted by using the subframe scheduling method, as shown in FIG. 9, including:
  • the base station sends the MBMS data to the terminal by using the licensed spectrum in the authorized cell.
  • the base station migrates the message to the terminal by using the licensed spectrum broadcast service.
  • the service migration message is used to indicate that the terminal receives service data on the unlicensed spectrum.
  • the base station may broadcast the service migration message to the terminal in the form of DCI or MACCE in the MBSFN subframe, where the DCI is placed in a common search area of the MBSFN subframe, and the MAC CE is placed.
  • the base station may also carry the service migration message by using the radio resource control RRC signaling, which is not limited by the present invention.
  • the terminal performs blind detection on the subframe on the unlicensed spectrum according to the service migration message.
  • the service migration message includes frequency information of the unlicensed spectrum, a cell identifier of an unlicensed cell occupying the unlicensed spectrum, and a service identifier of the MBMS data.
  • the terminal monitors the subframe on the unlicensed spectrum according to the cell identifier and the frequency information in the service migration message, and performs blind detection on the monitored subframe to determine Whether the subframe carries MBMS data.
  • the base station sends a scheduling indication message to the terminal by using the licensed spectrum.
  • the scheduling indication message includes a transport channel identifier, where the transport channel identifier is used to indicate a transport channel for transmitting the MBMS data.
  • the base station may also send the scheduling indication message by using an unlicensed spectrum.
  • the base station transmits, by using the subframe on the unlicensed spectrum, the scheduling indication message.
  • MBMS data MBMS data.
  • the terminal detects that the subframe carries MBMS data
  • the terminal acquires the MBMS data in the subframe according to the scheduling indication message.
  • the terminal obtains the transport channel information according to the transport channel identifier, where the transport channel information is used to indicate that the MBMS data carried by the subframe is occupied. a physical resource location, and a modulation and demodulation manner of the MBMS data, so that the terminal decodes the data at the physical resource location according to the modulation and demodulation manner, and obtains the terminal requirement from the decoded data according to the service identifier.
  • Business data The service identifier is in one-to-one correspondence with the service delivered by the base station. Because the base station may transmit data of multiple services at the same time, the terminal needs to obtain the service required by the terminal from the data of multiple services according to the service identifier. data.
  • the base station broadcasts a service backhaul message to the terminal when the right to use the unlicensed spectrum ends.
  • the base station may broadcast the service backhaul message through the licensed spectrum or the unlicensed spectrum.
  • the terminal re-receives the MBMS data on the licensed spectrum according to the service relocation message.
  • the base station can transmit the service data by using the unlicensed spectrum, the utilization of the unlicensed spectrum is improved.
  • the embodiment of the present invention may also carry the transport channel information in the service migration message, and the configuration information of the dedicated subframe of the base station on the at least one unlicensed spectrum.
  • the terminal can determine which subframes carry the MBMS data according to the configuration information, and directly obtain the MBMS data in the dedicated subframe according to the transmission channel information, without performing blind detection on the dedicated subframe.
  • the base station when acquiring multiple unlicensed spectrums, may also use other unlicensed spectrum to transmit MBMS data according to the foregoing steps.
  • the base station may migrate the service data transmitted on the second spectrum to the first spectrum with better resources for transmission, thereby improving spectrum utilization.
  • the embodiment of the present invention provides a base station 100, which is used to implement the method for transmitting service data as shown in FIG. 3.
  • the base station 100 as shown in FIG.
  • the obtaining unit 101 is configured to acquire usage rights of at least one first spectrum
  • the message broadcast unit 102 is configured to: use the second spectrum broadcast service to migrate the message to the terminal, where the service migration message is used to indicate that the terminal receives the service data on the at least one first frequency spectrum;
  • the data sending unit 103 is configured to send the service data to the terminal by using the at least one first spectrum.
  • the first spectrum and the second spectrum may both be licensed spectrums, so that when the resources of the second spectrum are poor, for example, the wireless signal strength is weak, and the uplink and downlink rates of the network are low, the base station may
  • the service data transmitted on the two spectrums is transmitted to the first spectrum with better resources for transmission, which improves spectrum utilization, speeds up the transmission of service data, and improves the user experience.
  • the first spectrum is an unlicensed spectrum
  • the second spectrum is an authorized spectrum
  • the base station may send service data to the terminal by using at least one unlicensed spectrum in the following two manners.
  • Manner 1 The base station sends the service data to the terminal by using the at least one unlicensed spectrum in a manner of subframe scheduling.
  • the base station broadcasts a service migration message to the terminal by using the licensed spectrum after acquiring the usage right of the at least one unlicensed spectrum.
  • the service migration message may include: frequency information of the at least one unlicensed spectrum, occupying the At least one unlicensed spectrum of unlicensed cells a cell identifier, and a service identifier of the service data.
  • the data sending unit 103 is specifically configured to: send a scheduling indication message corresponding to the service data to the terminal,
  • the scheduling indication message includes a transport channel identifier of the service data, the transport channel identifier is used to indicate a transport channel for transmitting the service data, and the service data is sent by using subframes on the M unlicensed spectrum.
  • the terminal After receiving the service migration message, the terminal listens to the unlicensed cell corresponding to the unlicensed cell identifier, and performs blind detection on the subframe on the unlicensed spectrum according to the frequency information. The terminal performs blind detection on the subframe to determine whether the subframe carries service data.
  • the terminal After the terminal detects that the subframe carries the service data, the terminal obtains the transport channel information according to the transport channel identifier, where the transport channel information is used to indicate the physical resource location occupied by the service data carried in the subframe. And the modulation and demodulation method of the service data. In this way, the terminal further decodes the data at the physical resource location according to the modulation and demodulation manner, and obtains the service data required by the terminal from the decoded data according to the service identifier.
  • the base station when the base station obtains the usage rights of the multiple unlicensed spectrums, the base station does not necessarily use all the unlicensed spectrum to send the service data every time. Specifically, if the base station obtains the usage rights of the M unlicensed spectrums, if the M is greater than 1 a positive integer, the data sending unit 103 is further configured to: send a scheduling indication message corresponding to the service data to the terminal, where the scheduling indication message includes a transport channel identifier of the service data, and an unoccupied N unlicensed spectrum a cell identifier of the authorized cell, the transport channel identifier is used to indicate a transport channel for transmitting the service data; the N unlicensed spectrums are any N unlicensed spectrums of the M unlicensed spectrums, where N is a positive integer. And 1 ⁇ N ⁇ M; the service data is transmitted through the subframes on the N unlicensed spectrums.
  • the retransmission of the service data may be performed by using the mode 1. Specifically, when the terminal fails to receive the unauthorized cell or fails to receive the service data correctly, the terminal may notify the authorized cell or the unlicensed cell. Sending a retransmission indication message, where the retransmission indication message may include a sequence number of a service data packet that the terminal does not receive, or a subframe number that does not correctly receive the service data, so that the base station receives the retransmission After the message is indicated, the service data that needs to be retransmitted is determined according to the sequence number or the subframe number, and the service data is retransmitted to the terminal by the authorized cell or the unlicensed cell. At this time, the scheduling indication message may further include a retransmission identifier, so that the terminal can distinguish the retransmitted service data.
  • the base station may also retransmit the service data by using another cell outside the unlicensed cell, where the other cell may be an authorized cell or another unlicensed cell.
  • the base station retransmits the service data through another cell to solve the problem that the terminal cannot receive data due to the "hidden node". For example, a certain terminal is in the first cell and the second cell at the same time, and the base station of the first cell and the base station of the second cell are far apart from each other and cannot detect the existence of the other party. At this time, the base station of the first cell The base station of the second cell is a hidden node, so that if the first cell and the second cell simultaneously send service data to the terminal, causing data collision, the terminal cannot receive data.
  • the terminal Since the time interval of the retransmission of the first cell and the second cell is the same, if the two base stations retransmitted through the same cell, the terminal may still be unable to receive the retransmitted service data due to data collision. At this time, the base station may pass another The cell retransmits to solve the problem of hidden nodes.
  • the foregoing method for retransmitting service data by using an unlicensed cell reduces the packet loss rate of the terminal.
  • the data sending unit 103 is specifically configured to: send the service data to the terminal by using a dedicated subframe on the at least one unlicensed spectrum; and configure configuration information of the dedicated subframe and the service data The transmission channel information is transmitted to the terminal.
  • the meaning of the dedicated subframe may be a subframe dedicated to carrying service data, for example, consecutive subframes in a certain period of time may be regarded as dedicated subframes; or used for transmitting services indicated by configuration information. Subframes of data can also be considered as dedicated sub-frames.
  • the base station may send the configuration information of the dedicated subframe and the transmission channel information of the service data to the terminal by using the service migration message, that is, in the second mode, the service migration message includes the at least one un The frequency information of the licensed spectrum, the cell identifier of the unlicensed cell occupying the at least one unlicensed spectrum, the service identifier of the service data, the configuration information of the dedicated subframe, and the transmission channel information of the service data.
  • the base station may also transmit the configuration information of the dedicated subframe and the transmission of the service data by using a subframe on the licensed spectrum or the unlicensed spectrum.
  • the channel information is sent to the terminal, which is not limited by the present invention.
  • the configuration information of the dedicated subframe includes a time period occupied by the dedicated subframe or a number of the dedicated subframe.
  • the starting location of the dedicated subframe may be pre-agreed between the base station and the terminal.
  • the base station may send the configuration information and the transmission channel information of the service data through a previous subframe of the dedicated subframe.
  • the terminal After acquiring the configuration information and the transmission channel information of the service data in the subframe, the terminal directly receives the corresponding time period/the corresponding number of dedicated subframes from the next subframe, and according to the transmission channel information and the service.
  • the service identifier in the migration message acquires the service data carried in the dedicated subframe.
  • the base station may also notify the start position of the terminal-specific subframe every time. At this time, the configuration information further includes the start position information of the dedicated subframe.
  • the configuration information of the dedicated subframe includes a bitmap, where the bitmap is used to indicate a dedicated subframe that carries the service data.
  • the base station carries indication information in a last subframe of the dedicated subframe, where the indication message is used by the terminal to determine whether to perform blind detection on a subsequent subframe, where the blind detection is used to determine a subsequent subframe. Whether to carry new business data.
  • the terminal may not perform blind detection on the subframe on the at least one unlicensed spectrum, if the indication information indicates the The base station may transmit the service data through the at least one unlicensed spectrum, and the terminal may perform blind detection on the subframe on the at least one unlicensed spectrum. In this way, the base station does not need to accurately determine the number of dedicated subframes in advance. For services with large fluctuations in data volume, for example, group group services, the number of dedicated subframes can be roughly set, and the amount of data transmitted is large, resulting in a large amount of data.
  • the excess data may be sent through the subsequent subframes, and the indication information is carried in the last subframe of the dedicated subframe, indicating that the terminal performs blind detection on the subsequent subframes, thus avoiding the dedicated subframe. Too many numbers are set, resulting in wasted subframes when transferring less data.
  • the base station when the right to use the at least one unlicensed spectrum ends, passes the authorized spectrum or the at least one unlicensed spectrum broadcast service backhaul message, where the service backhaul message is used to indicate that the terminal re-receives on the licensed spectrum.
  • Business data when the right to use the at least one unlicensed spectrum ends, passes the authorized spectrum or the at least one unlicensed spectrum broadcast service backhaul message, where the service backhaul message is used to indicate that the terminal re-receives on the licensed spectrum.
  • the base station can transmit service data by using unlicensed spectrum, which improves the utilization of unlicensed spectrum.
  • the foregoing description is only for the case where the first spectrum is an unlicensed spectrum and the second spectrum is an authorized spectrum, but those skilled in the art should understand that the first spectrum and the second spectrum are both in the embodiment of the present invention. The same applies to the case of licensed spectrum.
  • the base station can also be implemented by a transceiver and a processor.
  • the embodiment of the present invention provides a terminal 11 for implementing a method for transmitting service data as shown in FIG. 8.
  • the terminal 11 is as shown in FIG.
  • the message receiving unit 111 is configured to receive a service migration message that is sent by the base station by using the second spectrum, where the service migration message is used to indicate that the terminal receives the service data on the at least one first spectrum.
  • the data obtaining unit 112 is configured to receive, according to the service migration message, the service data that is sent by the base station by using the at least one first spectrum.
  • the first spectrum and the second spectrum may both be licensed spectrums, so that when the resources of the second spectrum are poor, for example, the wireless signal strength is weak, and the uplink and downlink rates of the network are low, the base station may
  • the service data transmitted on the two spectrums is transmitted to the first spectrum with better resources for transmission, which improves spectrum utilization, speeds up the transmission of service data, and improves the user experience.
  • the first spectrum is an unlicensed spectrum
  • the second spectrum is an authorized spectrum
  • the terminal can receive the service data sent by the base station to the terminal in the following two manners.
  • Manner 1 The terminal receives service data that is sent by the base station by using the at least one unlicensed spectrum in a scheduling manner.
  • the base station After obtaining the usage right of the at least one unlicensed spectrum, the base station sends a service migration message to the terminal by using the licensed spectrum, where the service migration message may include: the at least one unlicensed spectrum The frequency information, the cell identifier of the unlicensed cell occupying the at least one unlicensed spectrum, and the service identifier of the service data.
  • the data acquiring unit 112 is specifically configured to: receive the base station according to the service migration message. a subframe for transmitting M unlicensed spectrums; the message receiving unit 112 is further configured to receive a scheduling indication message sent by the base station, where the scheduling indication message includes a transport channel identifier of the service data, and the transport channel Identifying a transport channel for indicating the transmission of the service data; the data acquisition unit 112 is further configured to acquire the service data carried in the subframe according to the scheduling indication message.
  • the scheduling indication message may be sent by the base station through the authorized spectrum, or may be sent by the base station through the unlicensed spectrum.
  • the terminal monitors the unlicensed cell corresponding to the unlicensed cell identifier, and performs blind detection on the subframe on the unlicensed spectrum according to the frequency information, where the terminal is blindly detected.
  • the transport channel information is obtained according to the transport channel identifier, where the transport channel information is used to indicate the physical resource location occupied by the service data carried in the subframe, and the modulation and demodulation of the service data. the way.
  • the terminal further decodes the data at the physical resource location according to the modulation and demodulation manner, and obtains the service data required by the terminal from the decoded data according to the service identifier.
  • the message receiving unit 111 is configured to receive a scheduling indication message sent by the base station, where the scheduling indication message includes a transport channel identifier of the service data, and an unauthorized authorization of occupying N unlicensed spectrums.
  • the transport channel identifier is used to indicate a transport channel for transmitting the service data
  • the N unlicensed spectrums are any N unlicensed spectrums of the M unlicensed spectrums, where N is a positive integer, and 1 ⁇ N ⁇ M
  • the data obtaining unit 112 is further configured to: receive, according to the service migration message, a subframe that is sent by the base station by using the N unlicensed spectrums; and acquire, according to the scheduling indication message, the sub-members of the N unlicensed spectrums The service data carried in the frame.
  • the cell identifier of the unlicensed cell in the service migration message may refer to the cell identifier of the unlicensed cell that the base station may transmit the service data, for example, the base station obtains the first
  • the cell identifier carried in the service migration message is the cell identifier of the unlicensed cell occupying the first unlicensed spectrum and the unauthorized use of the second unlicensed spectrum.
  • the cell identifier of the cell, and the cell identifier in the scheduling indication message may be the cell identifier of the unlicensed cell that currently sends the service data, which may be the cell identifier of the unlicensed cell occupying the first unlicensed spectrum, and/or The cell identity of the unlicensed cell occupying the second unlicensed spectrum.
  • the terminal may send a retransmission indication message to the authorized cell or the unlicensed cell when the terminal fails to receive the service data or fails to receive the service data correctly, where the terminal sends the retransmission indication message to the authorized cell.
  • the transmission indication message may include a sequence number of the service data packet that the terminal does not receive, or a subframe number that does not correctly receive the service data, so that after receiving the retransmission indication message, the base station according to the serial number or the The subframe number determines the service data that needs to be retransmitted, and retransmits the service data to the terminal by the authorized cell or the unlicensed cell.
  • the scheduling indication message may further include a retransmission identifier, so that the terminal can distinguish the retransmitted service data.
  • the base station may also retransmit the service data by using another cell outside the unlicensed cell, where the other cell may be an authorized cell or another unlicensed cell.
  • the base station retransmits the service data through another cell to solve the problem that the terminal cannot receive data due to the "hidden node". For example, a certain terminal is in the first cell and the second cell at the same time, and the base station of the first cell and the base station of the second cell are far apart from each other and cannot detect the existence of the other party. At this time, the base station of the first cell The base station of the second cell is a hidden node, so that if the first cell and the second cell simultaneously send service data to the terminal, causing data collision, the terminal cannot receive data.
  • the terminal Since the time interval of the retransmission of the first cell and the second cell is the same, if the two base stations retransmitted through the same cell, the terminal may still be unable to receive the retransmitted service data due to data collision. At this time, the base station may pass another The cell retransmits to solve the problem of hidden nodes.
  • the foregoing method for retransmitting service data by using an unlicensed cell reduces the packet loss rate of the terminal.
  • the message receiving unit 111 is further configured to receive configuration information of a dedicated subframe sent by the base station and transmission channel information of the service data, where the data acquiring unit 112 is specifically configured to migrate according to the service. a message, the configuration information of the dedicated subframe and the transmission channel information of the service data are acquired by a dedicated subframe on the at least one unlicensed spectrum The business data.
  • the meaning of the dedicated subframe may be a subframe dedicated to carrying service data, for example, consecutive subframes in a certain period of time may be regarded as dedicated subframes; or used for transmitting services indicated by configuration information. Subframes of data can also be considered as dedicated sub-frames.
  • the base station may send the configuration information of the dedicated subframe and the transmission channel information of the service data to the terminal by using the service migration message, that is, in the second mode, the service migration message includes the at least one un The frequency information of the licensed spectrum, the cell identifier of the unlicensed cell occupying the at least one unlicensed spectrum, the service identifier of the service data, the configuration information of the dedicated subframe, and the transmission channel information of the service data.
  • the base station may also transmit the configuration information of the dedicated subframe and the transmission of the service data by using a subframe on the licensed spectrum or the unlicensed spectrum.
  • the channel information is sent to the terminal, which is not limited by the present invention.
  • the configuration information of the dedicated subframe includes a time period occupied by the dedicated subframe or a number of the dedicated subframe.
  • the starting location of the dedicated subframe may be pre-agreed between the base station and the terminal.
  • the base station may send the configuration information and the transmission channel information of the service data through a previous subframe of the dedicated subframe.
  • the terminal After acquiring the configuration information and the transmission channel information of the service data in the subframe, the terminal directly receives the corresponding time period/the corresponding number of dedicated subframes from the next subframe, and according to the transmission channel information and the service.
  • the service identifier in the migration message acquires the service data carried in the dedicated subframe.
  • the base station may also notify the start position of the terminal-specific subframe every time. At this time, the configuration information further includes the start position information of the dedicated subframe.
  • the configuration information of the dedicated subframe includes a bit bitmap, where the bitmap is used to indicate a dedicated subframe that carries the service data.
  • the terminal further includes a determining unit 113, configured to determine, according to the indication information carried in the last subframe in the dedicated subframe, whether to perform blind detection on the subsequent subframe, where the blind detection is used to determine Whether the new service data is carried in the subsequent subframe.
  • a determining unit 113 configured to determine, according to the indication information carried in the last subframe in the dedicated subframe, whether to perform blind detection on the subsequent subframe, where the blind detection is used to determine Whether the new service data is carried in the subsequent subframe.
  • the terminal may not need to go to the subframe on the at least one unlicensed spectrum. If the indication information indicates that the base station is likely to transmit service data through the at least one unlicensed spectrum, the terminal may perform blind detection on the subframe on the at least one unlicensed spectrum. In this way, the base station does not need to accurately determine the number of dedicated subframes in advance. For services with large fluctuations in data volume, for example, group group services, the number of dedicated subframes can be roughly set, and the amount of data transmitted is large, resulting in a large amount of data.
  • the excess data may be sent through the subsequent subframes, and the indication information is carried in the last subframe of the dedicated subframe, indicating that the terminal performs blind detection on the subsequent subframes, thus avoiding the dedicated subframe. Too many numbers are set, resulting in wasted subframes when transferring less data.
  • the terminal receives the service backhaul message broadcast by the base station through the licensed spectrum or the at least one unlicensed spectrum broadcast, and re-receives the service data on the licensed spectrum according to the service backhaul message.
  • the foregoing description is only for the case where the first spectrum is an unlicensed spectrum and the second spectrum is an authorized spectrum, but those skilled in the art should understand that the first spectrum and the second spectrum are both in the embodiment of the present invention. The same applies to the case of licensed spectrum.
  • the terminal can also be implemented by a transceiver and a processor.
  • the base station 12 includes:
  • the bus 121 completes communication with each other, and the input module 124 and the output module 125 are used to interact with external devices.
  • the processor 122 may be a multi-core central processing unit CPU, or an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present invention.
  • CPU central processing unit
  • ASIC Application Specific Integrated Circuit
  • the memory 123 is used to store instructions including computer operating instructions and network flow diagrams.
  • the memory 123 may include a high speed RAM memory and may also include a non-volatlie memory such as at least one disk memory.
  • Memory 123 can also be a memory array.
  • the base station 12 cooperates with the processor 122, the input module 124, and the output module 125 to implement all the method embodiments as shown in FIG. 3 .
  • the base station 12 cooperates with the processor 122, the input module 124, and the output module 125 to implement all the method embodiments as shown in FIG. 3 .
  • the processor 122 the input module 124, and the output module 125 to implement all the method embodiments as shown in FIG. 3 .
  • the base station 13 includes:
  • bus 131 a bus 131, and a processor 132, a memory 133, an input module 134, and an output module 135 connected to the bus, wherein the processor 132, the memory 133, the input module 134, and the output module 135 pass the
  • the bus 131 completes communication with each other, and the input module 134 and the output module 125 are used to interact with external devices.
  • the processor 132 may be a multi-core central processing unit CPU, or an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present invention.
  • CPU central processing unit
  • ASIC Application Specific Integrated Circuit
  • the memory 133 is for storing instructions, the program code including computer operating instructions and a network flow diagram.
  • the memory 133 may include a high speed RAM memory and may also include a non-volatile memory such as at least one disk memory. Memory 133 can also be a memory array.
  • the terminal 13 cooperates with the processor 132, the input module 134, and the output module 135 to implement all the method embodiments shown in FIG. 8. For details, refer to the corresponding description in the method embodiment corresponding to FIG. I will not repeat them here.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • each functional unit can be integrated in one In the processing unit, each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above units may be implemented in the form of hardware or in the form of hardware plus software functional units.
  • All or part of the steps of implementing the above method embodiments may be performed by hardware related to the program instructions.
  • the foregoing program may be stored in a computer readable storage medium, and when executed, the steps including the foregoing method embodiments are performed;
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a ROM (Read Only Memory), a RAM (Random Access Memory), a magnetic disk, or an optical disk, and the like, which can store a program code.

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Abstract

本发明实施例提供一种传输业务数据的方法和装置,涉及通信领域,以解决现有技术中频谱利用率较低的问题。该方法包括:基站获取至少一个第一频谱的使用权;所述基站通过第二频谱广播业务迁移消息至终端,所述业务迁移消息用于指示所述终端在所述至少一个第一频谱上接收业务数据;所述基站通过所述至少一个第一频谱将所述业务数据发送至所述终端。本发明实施例用于基站向终端发送业务数据。

Description

一种传输业务数据的方法和装置 技术领域
本发明涉及通信领域,尤其涉及一种传输业务数据的方法和装置。
背景技术
现有技术中,对于多个小区同时覆盖的终端,基站通常只是通过主小区占用的频谱向该终端发送业务数据,当该主小区占用的频谱的资源较差时,例如该频谱的无线信号强度较弱,网络上下行速率较低,或者,该基站在主小区传输业务数据发生拥塞时,如何利用其他小区占用的频谱发送业务数据,现有技术并未考虑。由此可知,现有技术中频谱的利用率较低。
发明内容
本发明提供一种传输业务数据的方法和装置,以解决现有技术中频谱利用率较低的问题。
为达到上述目的,本发明的实施例采用如下技术方案:
第一方面,提供一种传输业务数据的方法,包括:
基站获取至少一个第一频谱的使用权;
所述基站通过第二频谱广播业务迁移消息至终端,所述业务迁移消息用于指示所述终端在所述至少一个第一频谱上接收业务数据;
所述基站通过所述至少一个第一频谱将所述业务数据发送至所述终端。
在结合第一方面的第一种可能的实现方式中,所述业务迁移消息包括:所述至少一个第一频谱的频率信息,占用所述至少一个第一频谱的小区的小区标识,以及所述业务数据的业务标识。
结合第一方面或者第一方面的第一种可能的实现方式,在第二种可能的实现方式中,所述基站获得M个第一频谱的使用权,M为大于或等于1的正整数,所述基站通过所述至少一个第一频谱将所述业务数据发送至所 述终端具体包括:
所述基站向所述终端发送对应所述业务数据的调度指示消息,所述调度指示消息包括所述业务数据的传输信道标识,所述传输信道标识用于指示传输所述业务数据的传输信道;
所述基站通过所述M个第一频谱上的子帧发送所述业务数据。
结合第一方面至第一方面的第二种可能的实现方式中的任一种可能的实现方式,在第三种可能的实现方式中,所述基站获得M个第一频谱的使用权,M为大于1的正整数,所述基站通过所述至少一个第一频谱将所述业务数据发送至所述终端具体包括:
所述基站向所述终端发送对应所述业务数据的调度指示消息,所述调度指示消息包括所述业务数据的传输信道标识,以及占用N个第一频谱的未授权小区的小区标识,所述传输信道标识用于指示传输所述业务数据的传输信道;所述N个第一频谱为所述M个第一频谱中的任意N个第一频谱,其中,N为正整数,且1≤N≤M;
所述基站通过所述N个第一频谱上的子帧发送所述业务数据。
结合第一方面至第一方面的第三种可能的实现方式中的任一种可能的实现方式,在第四种可能的实现方式中,所述基站通过所述至少一个第一频谱将所述业务数据发送至所述终端具体包括:
所述基站将所述至少一个第一频谱上的专用子帧的配置信息以及所述业务数据的传输信道信息发送至所述终端;
所述基站通过所述专用子帧将所述业务数据发送至所述终端。
结合第一方面至第一方面的第四种可能的实现方式中的任一种可能的实现方式,在第五种可能的实现方式中,所述专用子帧的配置信息包括所述专用子帧占用的时间段或者所述专用子帧的数目。
结合第一方面至第一方面的第五种可能的实现方式中的任一种可能的实现方式,在第六种可能的实现方式中,所述专用子帧的配置信息包括比特位图,所述比特位图用于指示携带所述业务数据的专用子帧。
结合第一方面至第一方面的第六种可能的实现方式中的任一种可能的实现方式,在第七种可能的实现方式中,所述方法还包括:
所述基站在所述专用子帧中的最后一个子帧内携带指示信息,所述指示信息用于所述终端确定是否对后续子帧进行盲检,所述盲检用于确定所述后续子帧中是否携带新的业务数据。
结合第一方面至第一方面的第七种可能的实现方式中的任一种可能的实现方式,在第八种可能的实现方式中,所述业务数据为多媒体广播组播业务MBMS数据,或,单播业务数据。
结合第一方面至第一方面的第八种可能的实现方式中的任一种可能的实现方式,在第九种可能的实现方式中,所述第一频谱为未授权频谱,所述第二频谱为授权频谱。
第二方面,提供一种传输业务数据的方法,包括:
终端接收基站通过第二频谱广播的业务迁移消息,所述业务迁移消息用于指示所述终端在至少一个第一频谱上接收业务数据;
所述终端根据所述业务迁移消息接收所述基站通过所述至少一个第一频谱发送的所述业务数据。
在结合第二方面的第一种可能的实现方式中,所述业务迁移消息包括:所述至少一个第一频谱的频率信息,占用所述至少一个第一频谱的小区的小区标识,以及所述业务数据的业务标识。
结合第二方面或者第二方面的第一种可能的实现方式,在第二种可能的实现方式中,所述基站获得M个第一频谱的使用权,M为大于1的正整数,所述终端根据所述业务迁移消息接收所述基站通过所述至少一个第一频谱发送的所述业务数据具体包括:
所述终端接收所述基站发送的调度指示消息,所述调度指示消息包括所述业务数据的传输信道标识,所述传输信道标识用于指示传输所述业务数据的传输信道;
所述终端根据所述业务迁移消息接收所述基站通过所述M个第一频谱发送的子帧;
所述终端根据所述调度指示消息获取所述子帧中携带的所述业务数据。
结合第二方面至第二方面的第二种可能的实现方式中的任一种可能 的实现方式,在第三种可能的实现方式中,所述基站获得M个第一频谱的使用权,M为大于1的正整数,所述终端根据所述业务迁移消息接收所述基站通过所述至少一个第一频谱发送的所述业务数据具体包括:
所述终端接收所述基站发送的调度指示消息,所述调度指示消息包括所述业务数据的传输信道标识,以及占用N个第一频谱的未授权小区的小区标识,所述传输信道标识用于指示传输所述业务数据的传输信道;所述N个第一频谱为所述M个第一频谱中的任意N个第一频谱,其中,N为正整数,且1≤N≤M;
所述终端根据所述业务迁移消息接收所述基站通过所述N个第一频谱发送的子帧;
所述终端根据所述调度指示消息获取所述N个第一频谱上的子帧中携带的所述业务数据。
结合第二方面至第二方面的第三种可能的实现方式中的任一种可能的实现方式,在第四种可能的实现方式中,所述终端根据所述业务迁移消息接收所述基站通过所述至少一个第一频谱发送的所述业务数据具体包括:
所述终端接收所述基站发送的专用子帧的配置信息以及所述业务数据的传输信道信息;
所述终端根据所述业务迁移消息,所述专用子帧的配置信息以及所述业务数据的传输信道信息获取所述至少一个第一频谱上的专用子帧携带的所述业务数据。
结合第二方面至第二方面的第四种可能的实现方式中的任一种可能的实现方式,在第五种可能的实现方式中,若所述专用子帧全部携带有所述业务数据,则所述专用子帧的配置信息包括所述专用子帧占用的时间段或者所述专用子帧的数目。
结合第二方面至第二方面的第五种可能的实现方式中的任一种可能的实现方式,在第六种可能的实现方式中,所述专用子帧的配置信息包括比特位图,所述比特位图用于指示携带所述业务数据的专用子帧。
结合第二方面至第二方面的第六种可能的实现方式中的任一种可能 的实现方式,在第七种可能的实现方式中,所述方法还包括:所述终端根据所述专用子帧中的最后一个子帧内携带的指示信息确定是否对后续子帧进行盲检,所述盲检用于确定所述后续子帧中是否携带新的业务数据。
结合第二方面至第一方面的第七种可能的实现方式中的任一种可能的实现方式,在第八种可能的实现方式中,所述业务数据为多媒体广播组播业务MBMS数据,或,单播业务数据。
结合第二方面至第一方面的第八种可能的实现方式中的任一种可能的实现方式,在第九种可能的实现方式中,所述第一频谱为未授权频谱,所述第二频谱为授权频谱。
第三方面,提供一种基站,包括:
获取单元,用于获取至少一个第一频谱的使用权;
消息广播单元,用于通过第二频谱广播业务迁移消息至终端,所述业务迁移消息用于指示所述终端在所述至少一个第一频谱上接收业务数据;
数据发送单元,用于通过所述至少一个第一频谱将所述业务数据发送至所述终端。
在结合第三方面的第一种可能的实现方式中,所述业务迁移消息包括:所述至少一个第一频谱的频率信息,占用所述至少一个第一频谱的小区的小区标识,以及所述业务数据的业务标识。
结合第三方面或者第三方面的第一种可能的实现方式,在第二种可能的实现方式中,所述基站获得M个第一频谱的使用权,M为大于1的正整数,所述数据发送单元具体用于:
向所述终端发送对应所述业务数据的调度指示消息,所述调度指示消息包括所述业务数据的传输信道标识,所述传输信道标识用于指示传输所述业务数据的传输信道;
通过所述M个第一频谱上的子帧发送所述业务数据。
结合第三方面至第三方面的第二种可能的实现方式中的任一种可能的实现方式,在第三种可能的实现方式中,所述基站获得M个第一频谱的使用权,M为大于1的正整数,所述数据发送单元具体用于:
向所述终端发送对应所述业务数据的调度指示消息,所述调度指示消息包括所述业务数据的传输信道标识,以及占用N个第一频谱的未授权小区的小区标识,所述传输信道标识用于指示传输所述业务数据的传输信道;所述N个第一频谱为所述M个第一频谱中的任意N个第一频谱,其中,N为正整数,且1≤N≤M;
通过所述N个第一频谱上的子帧发送所述业务数据。
结合第三方面至第三方面的第三种可能的实现方式中的任一种可能的实现方式,在第四种可能的实现方式中,所述数据发送单元具体用于:
将所述至少一个第一频谱上的专用子帧的配置信息以及所述业务数据的传输信道信息发送至所述终端;
通过所述专用子帧将所述业务数据发送至所述终端。
结合第三方面至第三方面的第四种可能的实现方式中的任一种可能的实现方式,在第五种可能的实现方式中,所述专用子帧的配置信息包括所述专用子帧占用的时间段或者所述专用子帧的数目。
结合第三方面至第三方面的第五种可能的实现方式中的任一种可能的实现方式,在第六种可能的实现方式中,所述专用子帧的配置信息包括比特位图,所述比特位图用于指示携带所述业务数据的专用子帧。
结合第三方面至第三方面的第六种可能的实现方式中的任一种可能的实现方式,在第七种可能的实现方式中,所述数据发送单元还用于:
在所述专用子帧中的最后一个子帧内携带指示信息,所述指示信息用于所述终端确定是否对后续子帧进行盲检,所述盲检用于确定所述后续子帧中是否携带新的业务数据。
结合第三方面至第三方面的第七种可能的实现方式中的任一种可能的实现方式,在第八种可能的实现方式中,所述第一频谱为未授权频谱,所述第二频谱为授权频谱。
第四方面,提供一种终端,包括:
消息接收单元,用于接收基站通过第二频谱广播的业务迁移消息,所述业务迁移消息用于指示所述终端在至少一个第一频谱上接收业务数据;
数据获取单元,用于根据所述业务迁移消息接收所述基站通过所述至少一个第一频谱发送的所述业务数据。
在结合第四方面的第一种可能的实现方式中,所述业务迁移消息包括:所述至少一个第一频谱的频率信息,占用所述至少一个第一频谱的小区的小区标识,以及所述业务数据的业务标识。
结合第四方面或者第四方面的第一种可能的实现方式,在第二种可能的实现方式中,所述基站获得M个第一频谱的使用权,M为大于1的正整数,所述消息接收单元还用于,接收所述基站发送的调度指示消息,所述调度指示消息包括所述业务数据的传输信道标识,所述传输信道标识用于指示传输所述业务数据的传输信道;根据所述业务迁移消息接收所述基站通过所述M个第一频谱发送的子帧;
所述数据获取单元还用于,根据所述调度指示消息获取所述子帧中携带的所述业务数据。
结合第四方面至第四方面的第二种可能的实现方式中的任一种可能的实现方式,在第三种可能的实现方式中,所述基站获得M个第一频谱的使用权,M为大于1的正整数,所述消息接收单元具体用于:
接收所述基站发送的调度指示消息,所述调度指示消息包括所述业务数据的传输信道标识,以及占用N个第一频谱的未授权小区的小区标识,所述传输信道标识用于指示传输所述业务数据的传输信道;所述N个第一频谱为所述M个第一频谱中的任意N个第一频谱,其中,N为正整数,且1≤N≤M;
所述数据获取单元还用于,根据所述业务迁移消息接收所述基站通过所述N个第一频谱发送的子帧;根据所述调度指示消息获取所述N个第一频谱上的子帧中携带的所述业务数据。
结合第四方面至第四方面的第三种可能的实现方式中的任一种可能的实现方式,在第四种可能的实现方式中,所述消息接收单元还用于,接收所述基站发送的专用子帧的配置信息以及所述业务数据的传输信道信息;
所述数据获取单元,具体用于根据所述业务迁移消息,所述专用子帧的配置信息以及所述业务数据的传输信道信息获取所述至少一个第一频 谱上的专用子帧携带的所述业务数据。
结合第四方面至第四方面的第四种可能的实现方式中的任一种可能的实现方式,在第五种可能的实现方式中,若所述专用子帧全部携带有所述业务数据,则所述专用子帧的配置信息包括所述专用子帧占用的时间段或者所述专用子帧的数目。
结合第四方面至第四方面的第五种可能的实现方式中的任一种可能的实现方式,在第六种可能的实现方式中,所述专用子帧的配置信息包括比特位图,所述比特位图用于指示携带所述业务数据的专用子帧。
结合第四方面的第四至第六种可能的实现方式中的任一种可能的实现方式,在第七种可能的实现方式中,所述终端还包括确定单元,用于根据所述专用子帧中的最后一个子帧内携带的指示信息确定是否对后续子帧进行盲检,所述盲检用于确定所述后续子帧中是否携带新的业务数据。
结合第四方面的第四至第七种可能的实现方式中的任一种可能的实现方式,在第八种可能的实现方式中,所述第一频谱为未授权频谱,所述第二频谱为授权频谱。
第五方面,提供一种基站,包括:总线、以及连接到所述总线的处理器、存储器、输入模块和输出模块;所述存储器用于存储指令;所述处理器执行所述指令用于:
获取至少一个第一频谱的使用权;
通过第二频谱广播业务迁移消息至终端,所述业务迁移消息用于指示所述终端在所述至少一个第一频谱上接收业务数据;
通过所述至少一个第一频谱将所述业务数据发送至所述终端。
在结合第五方面的第一种可能的实现方式中,所述业务迁移消息包括:所述至少一个第一频谱的频率信息,占用所述至少一个第一频谱的小区的小区标识,以及所述业务数据的业务标识。
结合第五方面或者第五方面的第一种可能的实现方式,在第二种可能的实现方式中,所述基站获得M个第一频谱的使用权,M为大于或等于1的正整数,所述处理器执行所述指令具体用于:
向所述终端发送对应所述业务数据的调度指示消息,所述调度指示消 息包括所述业务数据的传输信道标识,所述传输信道标识用于指示传输所述业务数据的传输信道;
通过所述M个第一频谱上的子帧发送所述业务数据。
结合第五方面至第五方面的第三种可能的实现方式中的任一种可能的实现方式,在第四种可能的实现方式中,所述基站获得M个第一频谱的使用权,M为大于1的正整数,所述处理器执行所述指令具体用于:
向所述终端发送对应所述业务数据的调度指示消息,所述调度指示消息包括所述业务数据的传输信道标识,以及占用N个第一频谱的未授权小区的小区标识,所述传输信道标识用于指示传输所述业务数据的传输信道;所述N个第一频谱为所述M个第一频谱中的任意N个第一频谱,其中,N为正整数,且1≤N≤M;
通过所述N个第一频谱上的子帧发送所述业务数据。
结合第五方面至第五方面的第二种可能的实现方式中的任一种可能的实现方式,在第三种可能的实现方式中,所述处理器执行所述指令具体用于:
将所述至少一个第一频谱上的专用子帧的配置信息以及所述业务数据的传输信道信息发送至所述终端;
通过所述专用子帧将所述业务数据发送至所述终端。
结合第五方面至第五方面的第四种可能的实现方式中的任一种可能的实现方式,在第五种可能的实现方式中,所述专用子帧的配置信息包括所述专用子帧占用的时间段或者所述专用子帧的数目。
结合第五方面至第五方面的第五种可能的实现方式中的任一种可能的实现方式,在第六种可能的实现方式中,所述专用子帧的配置信息包括比特位图,所述比特位图用于指示携带所述业务数据的专用子帧。
结合第五方面的第四至第六种可能的实现方式中的任一种可能的实现方式,在第七种可能的实现方式中,所述处理器执行所述指令还用于:
在所述专用子帧中的最后一个子帧内携带指示信息,所述指示信息用于所述终端确定是否对后续子帧进行盲检,所述盲检用于确定所述后续子帧中是否携带新的业务数据。
结合第五方面的第四至第七种可能的实现方式中的任一种可能的实现方式,在第八种可能的实现方式中,所述第一频谱为未授权频谱,所述第二频谱为授权频谱。
第六方面,提供一种终端,包括:总线、以及连接到所述总线的处理器、存储器、输入模块和输出模块;所述存储器用于存储指令;所述处理器执行所述指令用于:
接收基站通过第二频谱广播的业务迁移消息,所述业务迁移消息用于指示所述终端在至少一个第一频谱上接收业务数据;
根据所述业务迁移消息接收所述基站通过所述至少一个第一频谱发送的所述业务数据。
在结合第六方面的第一种可能的实现方式中,所述业务迁移消息包括:所述至少一个第一频谱的频率信息,占用所述至少一个第一频谱的小区的小区标识,以及所述业务数据的业务标识。
结合第六方面或者第六方面的第一种可能的实现方式,在第二种可能的实现方式中,所述基站获得M个第一频谱的使用权,M为大于1的正整数,所述处理器执行所述指令具体用于:
接收所述基站发送的调度指示消息,所述调度指示消息包括所述业务数据的传输信道标识,所述传输信道标识用于指示传输所述业务数据的传输信道;
根据所述业务迁移消息接收所述基站通过所述M个第一频谱发送的子帧;
根据所述调度指示消息获取所述子帧中携带的所述业务数据。
结合第六方面至第六方面的第二种可能的实现方式中的任一种可能的实现方式,在第三种可能的实现方式中,所述基站获得M个第一频谱的使用权,M为大于1的正整数,所述处理器执行所述指令具体用于:
接收所述基站发送的调度指示消息,所述调度指示消息包括所述业务数据的传输信道标识,以及占用N个第一频谱的未授权小区的小区标识,所述传输信道标识用于指示传输所述业务数据的传输信道;所述N个第一频谱为所述M个第一频谱中的任意N个第一频谱,其中,N为正整数,且 1≤N≤M;
根据所述业务迁移消息接收所述基站通过所述N个第一频谱发送的子帧;
根据所述调度指示消息获取所述N个第一频谱上的子帧中携带的所述业务数据。
结合第六方面至第六方面的第三种可能的实现方式中的任一种可能的实现方式,在第四种可能的实现方式中,所述处理器执行所述指令具体用于:
接收所述基站发送的专用子帧的配置信息以及所述业务数据的传输信道信息;
根据所述业务迁移消息,所述专用子帧的配置信息以及所述业务数据的传输信道信息获取所述至少一个第一频谱上的专用子帧携带的所述业务数据。
结合第六方面至第六方面的第四种可能的实现方式中的任一种可能的实现方式,在第五种可能的实现方式中,若所述专用子帧全部携带有所述业务数据,则所述专用子帧的配置信息包括所述专用子帧占用的时间段或者所述专用子帧的数目。
结合第六方面至第六方面的第五种可能的实现方式中的任一种可能的实现方式,在第六种可能的实现方式中,所述专用子帧的配置信息包括比特位图,所述比特位图用于指示携带所述业务数据的专用子帧。
结合第六方面的第四至第六种可能的实现方式中的任一种可能的实现方式,在第七种可能的实现方式中,所述处理器执行所述指令还用于:
根据所述专用子帧中的最后一个子帧内携带的指示信息确定是否对后续子帧进行盲检,所述盲检用于确定所述后续子帧中是否携带新的业务数据。
结合第六方面的第四至第七种可能的实现方式中的任一种可能的实现方式,在第八种可能的实现方式中,所述第一频谱为第一频谱,所述第二频谱为第二频谱。
采用上述方案,基站获得至少一个第一频谱的使用权,通过第二频谱 广播业务迁移消息,该业务迁移消息用于指示终端在该至少一个第一频谱接收业务数据,并通过所述至少一个第一频谱将业务数据发送至终端。这样,基站在利用第二频谱向终端发送业务数据的同时,也可以通过至少一个第一频谱向终端发送业务数据,提高了频谱利用率,加快了终端获取到业务数据的速率,提升了用户体验。
附图说明
为了更清楚地说明本发明实施例的技术方案,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为本发明实施例提供的一种传输业务数据的方法的流程示意图;
图2为本发明实施例提供的一种授权小区和非授权小区传输子帧的示意图;
图3为本发明实施例提供的一种MBSFN子帧的结构示意图;
图4为本发明实施例提供的采用一个DCI指示一个未授权频谱上的多个子帧携带的业务数据的示意图;
图5为本发明实施例提供的采用一个DCI指示两个未授权频谱上的子帧携带的业务数据的示意图;
图6为本发明实施例提供的一种在未授权频谱上配置专用子帧的示意图;
图7为本发明实施例提供的另一种在未授权频谱上配置专用子帧的示意图;
图8为本发明实施例提供的另一种传输业务数据的方法的流程示意图;
图9为本发明实施例提供的又一种传输业务数据的方法的流程示意图;
图10为本发明实施例提供的一种基站的结构示意图;
图11为本发明实施例提供的一种终端的结构示意图;
图12为本发明实施例提供的另一种基站的结构示意图;
图13为本发明实施例提供的另一种终端的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
本文中术语“和/或”,仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。
本发明实施例提供一种传输业务数据的方法,如图1所示,该方法包括:
S101、基站获取至少一个第一频谱的使用权。
S102、该基站通过第二频谱广播业务迁移消息至终端,该业务迁移消息用于指示该终端在该至少一个第一频谱上接收业务数据。
S103、该基站通过该至少一个第一频谱将该业务数据发送至该终端。
可选地,该第一频谱和该第二频谱均为授权频谱,这样,在第二频谱的资源较差时,例如无线信号强度较弱,网络上下行速率较低,该基站可以将第二频谱上传输的业务数据迁移到资源较好的第一频谱上进行传输,提高了频谱利用率,加快了业务数据传输的速率,提升了用户体验。
可选地,该第一频谱为未授权频谱,该第二频谱为授权频谱。需要说明的是,随着移动通信业务数据量急剧提升,无线通信频谱越来越紧张,近年来,由于无线电视等业务逐步退出市场,腾出的一些频谱,由于这些频谱资源未经电气和电子工程师协会(IEEE,institute of electrical and electronics engineers)授权给第三代合作伙伴计划(3GPP,3rd generation partnership project)使用,所以对3GPP来说,腾出的频 谱属于未授权(unlicense)频谱。如图2所示,IEEE授权给3GPP使用的频谱称为授权频谱,占用授权频谱的小区称为授权小区;未经IEEE授权给3GPP使用的频谱称为未授权频谱,例如,空白电视频谱,占用未授权频谱的小区称为未授权小区。图1中的每一个方框表示一个子帧,箭头所示方向为子帧在时间上的传输方向,也就是说,终端先接收到子帧A,后接收到子帧B。
需要说明的是,现有技术中,如果将未授权频谱用作专用载波发送多媒体广播组播业务(MBMS,multimedia broadcast multicast service)数据,由于未授权频谱本身不保证能持续有效,所以不能保证连续传输MBMS数据。另外,专用载波发送MBMS数据要求专用载波周期性地发送MBMS控制消息,由于未授权频谱不持续有效,所以也无法保证能周期性地发送MBMS控制消息,若终端没能正确接收到MBMS控制消息,该终端也就无法正确接收MBMS数据了。
具体地,基站配置在未授权小区以广播组播单频网络(MBSFN,multimedia broadcast multicast service single frequency network)方式传输MBMS数据。基站在授权小区发送的该业务迁移消息包括该MBSFN传输的控制信息。该控制信息包括系统信息块(SIB,system information block)13、多播控制信道(MCCH,multicast control channel)和MCCH变更通知。SIB13指示MCCH的子帧位置和周期,以及使用的调制编码方式。MCCH用于指示MBMS数据到MBMS传输信道的映射关系,以及各MBMS传输信道占用的子帧位图、调度起始位置、周期和使用的调制编码方式等。MCCH变更通知用于指示MCCH内容发生了变更,以通知感兴趣终端及时读取MCCH的新内容。由于控制信息在授权小区发送,而指示的是非授权小区的MBSFN传输的控制信息,因此,该MBSFN传输的控制信息还包含该控制信息所属小区的指示信息。
基站根据自己是否获得未授权频谱的使用权,确定发送MBMS数据的小区。如果基站获得了未授权频谱的使用权,则通过未授权小区发送MBMS数据,如果基站没有获得未授权频谱的使用权,则通过授权频谱发送MBMS数据。基站可以采用组调度的方式在授权小区发送MBMS数据。授权小区同时指示MBMS业务到组无线网络临时标识(Group-RNTI)的映射关系,MBMS数据的组调度信令使用对应的Group-RNTI进行循环冗余校验码 (CRC,cyclic redundancy check)加扰。需要说明的是,基站在获得未授权频谱的使用权后,需要通知终端回到未授权频谱接收MBMS数据。但由于何时能获得未授权频谱使用权具有不可预期性,而这种通知需要时间,因此基站可能推后几个子帧才将MBMS数据的传输放到未授权小区上传输。相应地,基站需要在失去未授权频谱的使用权(可提前知道何时将失去使用权)之前通知终端,以让终端及时切换到授权小区接收MBMS数据。
另外,基站向终端传输的业务数据可以为单播业务数据,或者,MBMS数据。基站若能使用未授权频谱,可以在未授权频谱上采用混合载波方式传MBMS数据,即未授权小区内有一部分子帧用于传MBMS数据,一部分子帧不用于传MBMS数据;也可以在未授权频谱上采用专用载波方式传MBMS数据;也可以在LTE-WiFi多流传输情况下用WiFi广播方式传拥塞时的MBMS数据。本发明所有的实施例中,基站在载波上进行的都既可以是MBSFN传输,也可以是组调度的单小区传输。
下面具体说明在第一频谱为未授权频谱,第二频谱为授权频谱的情况下,基站向终端发送业务数据的方法。
如图2所示,基站可以获得未授权频谱的使用权,图2所示未授权小区的实线框表示基站对未授权频谱的可用时间内的子帧,所示虚线框为基站对未授权频谱的可用时间以外的子帧。A,B,C,D四个子帧为用于发送MBMS数据的子帧。其中,用于发送MBMS数据的子帧称为MBSFN子帧,其他非MBSFN子帧可用于发送单播业务数据。
需要说明的是,图2所示为基站获取到一个未授权频谱的使用权。在本发明实施例中,该基站可以同时获取到多个未授权频谱的使用权,并在各未授权频谱的可用时间内,通过各未授权频谱上的子帧传输业务数据。
图3所示为一个MBSFN子帧的结构示意图,该MBSFN子帧包括物理下行控制信道(PDCCH,physical downlink control channel)区域和MBMS传输区域,其中,该PDCCH区域的公共搜索区域可以携带下行控制信息(DCI,downlink control information),终端在监测到该子帧时,可以对该PDCCH区域的公共搜索区域进行盲检,以确定该子帧是否携带了MBMS数据;该MBMS传输区域携带了媒体介入控制层控制单元(MAC CE, medium access control control element)以及MBMS数据。
进一步地,基站通过该授权频谱上特定的子帧发送该业务迁移消息,该特定的子帧为该基站在通过该至少一个未授权频谱发送业务数据之前,在该授权频谱上传输的子帧。
示例地,基站获得未授权频谱的使用权后,在授权频谱上的第一个MBSFN子帧内,携带该业务迁移消息,以图2举例说明,子帧B为该基站获得该未授权频谱的使用权之后,在该授权频谱上的第一个MBSFN子帧,则该基站可以在子帧B中携带该业务迁移消息。
上述只是举例说明,本发明实施例也可以通过非MBSFN子帧发送该业务迁移消息,本发明对此不作限定。
具体地,如图3所示,该基站可以在MBSFN子帧内通过DCI或者MACCE的形式向终端广播该业务迁移消息,其中,该DCI放在MBSFN子帧的公共搜索区,该MAC CE放在MBSFN子帧的MBMS传输区域。另外,该基站还可以通过无线资源控制(RRC,radio resource control)信令携带该业务迁移消息,本发明对此不作限定。
另外,在本发明实施例一种可能的实现方式中,基站在获取到未授权频谱的使用权后,并不表示一定要将业务数据迁移到未授权频谱,可以由用户预先设定迁移条件,例如,基站可以在授权频谱上的业务数据发生拥塞时,将一部分业务数据迁移至未授权频谱进行发送,在此情况下,该基站在通过授权频谱广播业务迁移消息之前,可以确定该授权频谱传输业务数据发生拥塞。
进一步地,该基站通过未授权频谱将业务数据发送至终端可以包括以下两种方式:
方式一、基站采用子帧调度的方式通过至少一个未授权频谱向终端发送业务数据。
在方式一中,该业务迁移消息可以包括:该至少一个未授权频谱的频率信息,占用该至少一个未授权频谱的未授权小区的小区标识,以及该业务数据的业务标识。
若该基站获取到M个未授权频谱的使用权,M为大于或等于1的正整 数,则该基站向该终端发送对应该业务数据的调度指示消息,该调度指示消息包括该业务数据的传输信道标识,该传输信道标识用于指示传输该业务数据的传输信道,并通过该M个未授权频谱上的子帧发送该业务数据,
这样,终端在接收到该业务迁移消息后,监听该未授权小区标识对应的未授权小区,并根据该频率信息对该未授权频谱上的子帧进行盲检。其中,终端对子帧进行盲检用于确定该子帧是否携带有业务数据。
进一步地,终端在盲检到子帧携带有业务数据后,根据该传输信道标识在对应的传输信道获取传输信道信息,该传输信道信息用于指示该子帧携带的业务数据占用的物理资源位置,以及该业务数据的调制解调方式。这样,该终端进一步根据该调制解调方式对该物理资源位置处的数据进行解码,并根据该业务标识从解码后的数据中获取该终端需要的业务数据。
需要说明的是,业务标识与该基站下发的业务一一对应,由于该基站可能同时传输多个业务的数据,因此,终端可以根据该业务标识从多个业务的数据中获取该终端需要的业务的数据。
另外,该基站可以通过授权频谱上的子帧,或者未授权频谱上的子帧发送该调度指示消息,该调度指示消息可以用于指示一个未授权频谱上的多个子帧携带的业务数据所占用的物理资源位置,以及该业务数据的调制解调方式,其中,所述多个子帧可以是连续的,也可以是不连续的,以图4举例说明,授权频谱上的一个子帧携带的调度指示消息(即该DCI),指示终端在未授权频谱上的两个不连续的MBSFN子帧中获取业务数据。
需要说明的是,基站在获得多个未授权频谱的使用权时,不一定每次都使用所有的未授权频谱发送业务数据,具体地,在该基站获取到M个未授权频谱的使用权时,若M为大于1的正整数,则该基站可以向该终端发送对应该业务数据的调度指示消息,该调度指示消息包括该业务数据的传输信道标识和占用N个未授权频谱的未授权小区的小区标识,该传输信道标识用于指示传输该业务数据的传输信道,该N个未授权频谱为该M个未授权频谱的任意N个未授权频谱,其中,N为正整数,且1≤N≤M,该基站通过该N个未授权频谱上的子帧发送该业务数据。
也就是说,该业务迁移消息中的未授权小区的小区标识可以是指该基站可能传输业务数据的未授权小区的小区标识,例如,该基站获得了第一 未授权频谱和第二未授权频谱的使用权,则该业务迁移消息中携带的小区标识即为占用该第一未授权频谱的未授权小区的小区标识和占用该第二未授权频谱的未授权小区的小区标识,而该调度指示消息中的小区标识可以为当前发送业务数据的未授权小区的小区标识,其可以为占用该第一未授权频谱的未授权小区的小区标识,和/或,占用该第二未授权频谱的未授权小区的小区标识。
这样,该基站在获取到多个未授权频谱的使用权后,可以在该多个未授权频谱中选择用于发送业务数据的一个或多个未授权频谱,此时,该基站可以在未授权频谱或者授权频谱上通过一个DCI或者多个DCI发送调度指示消息,值得注意的是,基站采用一个DCI指示多个子帧携带的业务数据时,不同未授权小区的多个业务数据在其对应的子帧上占用的物理资源位置必须相同。
以图5举例说明,基站分别获取到第一未授权小区和第二未授权小区的未授权频谱的使用权,其中,该第一未授权小区占用第一未授权频谱,该第二未授权小区占用第二未授权频谱,在这种情况下,该业务迁移消息包括该第一未授权小区的小区标识,该第二未授权小区的小区标识,该第一未授权频谱的频率信息和该第二未授权频谱的频率信息,以及该第一未授权小区传输的业务数据的业务标识,该第二授权小区传输的业务数据的业务标识,该调度指示消息包括,该业务迁移消息包括该第一未授权小区的小区标识,该第二未授权小区的小区标识,该第一授权小区传输的业务的传输信道标识,该第二授权小区传输的业务的传输信道标识。
本发明实施例还可以通过方式一进行业务数据的重传,具体地,终端在未授权小区没能收到,或者没能正确收到业务数据时,该终端可以向授权小区或者该未授权小区发送重传指示消息,其中,该重传指示消息可以包括该终端没有收到的业务数据包的序列号,或者没有正确收到业务数据的子帧号,这样,该基站在收到该重传指示消息后,根据该序列号或者该子帧号,确定需要进行重传的业务数据,并通过该授权小区或者未授权小区将该业务数据重传至该终端。此时,该调度指示消息还可以包括重传标识,以便该终端能够区分重传的业务数据。
其中,该基站也可以通过该未授权小区外的另一个小区重传该业务数据,所述另一个小区可以是授权小区,也可以是另一个未授权小区。基站 通过另一个小区重传业务数据可以解决由于“隐藏节点”的原因,导致终端无法接收数据的问题。例如,某一终端同时处于第一小区和第二小区内,且该第一小区的基站与该第二小区的基站由于相隔较远,无法检测到对方的存在,此时,第一小区的基站与该第二小区的基站互为隐藏节点,这样,若第一小区和第二小区同时向该终端发送业务数据,造成数据冲突,就会导致该终端无法接收数据。由于第一小区和第二小区重传的时间间隔相同,若该双方基站通过同一个小区进行重传,那么终端还是会由于数据冲突无法接收重传的业务数据,此时,基站可以通过另一个小区进行重传,从而解决隐藏节点的问题。
上述利用未授权小区进行业务数据重传的方法,降低了终端的丢包率。
方式二、该基站将至少一个未授权频谱上的专用子帧的配置信息以及该业务数据的传输信道信息发送至该终端,该基站通过该专用子帧将该业务数据发送至该终端。
所述专用子帧的含义可以是专门用于携带业务数据的子帧,比如在某个时间段内连续的数个子帧可以都看作是专用子帧;或者通过配置信息指示的用于传输业务数据的子帧也都可以看作是专用子帧。
可选地,基站可以通过该业务迁移消息将该专用子帧的配置信息以及该业务数据的传输信道信息发送至该终端,也就是说,在方式二中,该业务迁移消息包括该至少一个未授权频谱的频率信息,占用该至少一个未授权频谱的未授权小区的小区标识,该业务数据的业务标识,该专用子帧的配置信息,以及该业务数据的传输信道信息。
上述只是本发明实施例一种可能的实现方式,该基站也可以在广播业务迁移消息后,通过授权频谱或者非授权频谱上的子帧将该专用子帧的配置信息,以及该业务数据的传输信道信息发送至终端,本发明对此不作限定。
可选地,若该专用子帧全部携带了业务数据,则该专用子帧的配置信息可以为该专用子帧占用的时间段,或者该专用子帧的数目。
需要说明的是,该基站与该终端之间可以预先约定该专用子帧的起始位置,例如,该基站可以通过专用子帧的前一个子帧发送该配置信息以及 该业务数据的传输信道信息,该终端在子帧中获取到该配置信息以及该业务数据的传输信道信息后,直接从下一个子帧开始接收相应时间段/相应数目的专用子帧,并根据该传输信道信息以及该业务迁移消息内的业务标识获取该专用子帧携带的业务数据。另外,也可以由该基站每次通知终端专用子帧的起始位置,此时,该配置信息还包括该专用子帧的起始位置信息。
例如,如图6所示,图中的粗线方框为未授权频谱上的专用子帧,箭头所示方向为子帧在时间上的传输方向,该基站通过MBSFN子帧B发送该专用子帧的配置信息,以及该专用子帧携带业务数据的传输信道信息,其中,该专用子帧的配置信息包括该专用子帧占用的时间段/该专用子帧的数目,并且该配置信息还包括该专用子帧的起始位置信息,如图6所示,该起始位置信息指示MBSFN子帧B之后的下一个未授权频谱上的子帧为第一个专用子帧,这样,该终端在接收到该配置信息以及该传输信道信息后,根据该起始位置信息在该未授权频谱上连续接收相应时间段的专用子帧,或者该基站对接收到的子帧进行计数,连续接收6个专用子帧,并根据该传输信道信息以及该业务迁移消息内的业务标识获取该专用子帧携带的业务数据,无需对该专用子帧进行盲检。
可选地,该专用子帧的配置信息包括比特位图,该比特位图用于指示携带该业务数据的专用子帧。
例如,该预设比特位图为六位比特数:101001,其中,每一个比特对应一个子帧,并且,若该比特取值为0,表示该比特对应的子帧是MBSFN专用子帧,若该比特取值为1,表示该比特对应的子帧是非MBSFN专用子帧,如图7所示,箭头所示方向为子帧在时间上的传输方向,基站与终端可以预先约定在MBSFN子帧B之后的下一个未授权频谱上的子帧为该比特位图的第一个比特所对应的子帧,后续比特依次对应后续的子帧。其中,该MBSFN子帧B携带业务迁移消息,该业务迁移消息包括该比特位图,则该终端在接收到该业务迁移消息后,按照该比特位图直接丢弃的非MBSFN专用子帧,根据传输信道信息以及业务标识获取MBMSFN专用子帧中携带的MBMS数据,无需对该比特位图对应的子帧进行盲检。
上述只是举例说明,基站与终端也可以约定比特取值为1时,表示该比特对应的子帧是MBSFN专用子帧,比特取值为0时,表示该比特对应的 子帧是非MBSFN专用子帧,本发明对此不做限定。
可选地,该基站在该专用子帧中的最后一个子帧内携带指示信息,该指示消息用于该终端确定是否对后续子帧进行盲检,所述盲检用于确定后续子帧中是否携带新的业务数据。
具体地,若该指示信息指示该基站不可能再通过该至少一个未授权频谱发送业务数据,则终端可以无需针对该至少一个未授权频谱上的子帧进行盲检了,若该指示信息指示该基站有可能再通过该至少一个未授权频谱发送业务数据,则终端可以针对该至少一个未授权频谱上的子帧进行盲检。这样,该基站无需预先精确确定专用子帧的个数,对于数据量波动较大的业务,例如,群组Group业务,可以大致设定专用子帧的个数,在传输数据量较大,导致专用子帧不能全部携带时,可以通过后续子帧发送超出的数据,并在专用子帧的最后一个子帧中携带指示信息,指示终端对后续子帧进行盲检,这样,避免了专用子帧数设置过多,导致传输较少数据量时的子帧浪费。
需要说明的是,上述方式一可以动态决定使用哪些未授权频谱的子帧传输业务数据,此时,终端可以对未授权频谱上的子帧进行盲检来确定该子帧是否携带有业务数据,而方式二中,基站预先固定配置好了未授权频谱上的专用子帧用于传输业务数据,并将所述专用子帧的配置信息发送至终端,这样,该终端无需对所述专用子帧进行盲检,直接根据传输信道信息在所述专用子帧中获取业务数据,并且对于方式二中的非专用子帧,该基站可以按照方式一的方法动态决定使用哪些子帧传输业务数据,实现方式更加灵活。
进一步地,该基站在对该至少一个未授权频谱的使用权结束时,通过该授权频谱或者该至少一个未授权频谱广播业务回迁消息,该业务回迁消息用于指示终端重新在该授权频谱上接收业务数据。
这样,由于该基站可以采用未授权频谱传输业务数据,提高了未授权频谱的利用率,减轻了主小区占用的授权频谱传输业务数据的负担,提升了用户体验。
另外,上述只是针对第一频谱为未授权频谱,第二频谱为授权频谱的情况下进行说明的,但是本领域的技术人员应该理解到,本发明实施例在 第一频谱和第二频谱均为授权频谱的情况下同样适用。
本发明实施例提供另一种传输业务数据的方法,如图8所示,该方法包括:
S801、终端接收基站通过第二频谱广播的业务迁移消息,该业务迁移消息用于指示该终端在至少一个第一频谱上接收业务数据。
S802、该终端根据该业务迁移消息接收该基站通过该至少一个第一频谱发送的该业务数据。
可选地,该第一频谱和该第二频谱均为授权频谱,这样,在第二频谱的资源较差时,例如无线信号强度较弱,网络上下行速率较低,该基站可以将第二频谱上传输的业务数据迁移到资源较好的第一频谱上进行传输,提高了频谱利用率,加快了业务数据传输的速率,提升了用户体验。
下面具体说明在第一频谱为未授权频谱,第二频谱为授权频谱的情况下,终端接收基站发送的业务数据的方法。
具体地,参照上一方法实施例中的对应描述,基站在获取到至少一个未授权频谱的使用权后,通过授权频谱向终端发送业务迁移消息,该业务迁移消息可以包括:该至少一个未授权频谱的频率信息,占用该至少一个未授权频谱的未授权小区的小区标识,以及该业务数据的业务标识。
这样,该终端在接收到该业务迁移消息后,监听该未授权小区标识对应的未授权小区,并根据该频率信息对该未授权频谱上的子帧进行盲检。其中,终端对子帧进行盲检用于确定该子帧是否携带有业务数据。
进一步地,该终端根据该业务迁移消息在至少一个未授权频谱获取业务数据可以包括以下两种方式:
方式一、该终端接收该基站采用调度方式通过该至少一个未授权频谱发送的业务数据。
具体地,若该基站获得M个未授权频谱的使用权,M为大于或等于1的正整数,则该终端接收该基站发送的调度指示消息,该调度指示消息包括该业务数据的传输信道标识,并根据该业务迁移消息接收该基站通过该M个未授权频谱发送的子帧,并根据该调度指示消息获取该子帧中携带的 该业务数据。
具体地,终端在接收到该业务迁移消息后,监听该未授权小区标识对应的未授权小区,并根据该频率信息对该未授权频谱上的子帧进行盲检,该终端在盲检到子帧携带有业务数据后,根据该传输信道标识在对应的传输信道获取传输信道信息,该传输信道信息用于指示该子帧携带的业务数据占用的物理资源位置,以及该业务数据的调制解调方式。这样,该终端进一步根据该调制解调方式对该物理资源位置处的数据进行解码,并根据该业务标识从解码后的数据中获取该终端需要的业务数据。
基站在获得多个未授权频谱的使用权时,不一定每次都使用所有的未授权频谱发送业务数据,具体地,在该基站获取到M个未授权频谱的使用权时,若M为大于1的正整数,则终端可以接收该基站发送的调度指示消息,该调度指示消息包括该业务数据的传输信道标识,以及占用N个未授权频谱的未授权小区的小区标识,该传输信道标识用于指示传输该业务数据的传输信道;该N个未授权频谱为该M个未授权频谱中的任意N个未授权频谱,其中,N为正整数,且1≤N≤M;并根据该业务迁移消息接收该基站通过该N个未授权频谱发送的子帧;根据该调度指示消息获取该N个未授权频谱上的子帧中携带的该业务数据。
也就是说,该业务迁移消息中的未授权小区的小区标识可以是指该基站可能传输业务数据的未授权小区的小区标识,例如,该基站获得了第一未授权频谱和第二未授权频谱的使用权,则该业务迁移消息中携带的小区标识即为占用该第一未授权频谱的未授权小区的小区标识和占用该第二未授权频谱的未授权小区的小区标识,而该调度指示消息中的小区标识可以为当前发送业务数据的未授权小区的小区标识,其可以为占用该第一未授权频谱的未授权小区的小区标识,和/或,占用该第二未授权频谱的未授权小区的小区标识。
这样,该基站在获取到多个未授权频谱的使用权后,可以在该多个未授权频谱中选择用于发送业务数据的一个或多个未授权频谱,此时,该基站可以在未授权频谱或者授权频谱上通过一个DCI或者多个DCI发送调度指示消息,值得注意的是,基站采用一个DCI指示多个子帧携带的业务数据时,不同未授权小区的多个业务数据在其对应的子帧上占用的物理资源 位置必须相同。
可选地,在方式一中,终端在未授权小区没能收到,或者没能正确收到业务数据时,该终端可以向授权小区或者该未授权小区发送重传指示消息,其中,该重传指示消息可以包括该终端没有收到的业务数据包的序列号,或者没有正确收到业务数据的子帧号,这样,该基站在收到该重传指示消息后,根据该序列号或者该子帧号,确定需要进行重传的业务数据,并通过该授权小区或者未授权小区将该业务数据重传至该终端。此时,该调度指示消息还可以包括重传标识,以便该终端能够区分重传的业务数据。
其中,该基站也可以通过该未授权小区外的另一个小区重传该业务数据,所述另一个小区可以是授权小区,也可以是另一个未授权小区。基站通过另一个小区重传业务数据可以解决由于“隐藏节点”的原因,导致终端无法接收数据的问题。例如,某一终端同时处于第一小区和第二小区内,且该第一小区的基站与该第二小区的基站由于相隔较远,无法检测到对方的存在,此时,第一小区的基站与该第二小区的基站互为隐藏节点,这样,若第一小区和第二小区同时向该终端发送业务数据,造成数据冲突,就会导致该终端无法接收数据。由于第一小区和第二小区重传的时间间隔相同,若该双方基站通过同一个小区进行重传,那么终端还是会由于数据冲突无法接收重传的业务数据,此时,基站可以通过另一个小区进行重传,从而解决隐藏节点的问题。
上述利用未授权小区进行业务数据重传的方法,降低了终端的丢包率。
方式二、该终端接收该基站发送的专用子帧的配置信息以及该业务数据的传输信道信息,并根据该业务迁移消息,该专用子帧的配置信息以及该业务数据的传输信道信息获取该至少一个未授权频谱上的专用子帧携带的该业务数据。
所述专用子帧的含义可以是专门用于携带业务数据的子帧,比如在某个时间段内连续的数个子帧可以都看作是专用子帧;或者通过配置信息指示的用于传输业务数据的子帧也都可以看作是专用子帧。
可选地,基站可以通过该业务迁移消息将该专用子帧的配置信息以及该业务数据的传输信道信息发送至该终端,也就是说,在方式二中,该业务迁移消息包括该至少一个未授权频谱的频率信息,占用该至少一个未授权频谱的未授权小区的小区标识,该业务数据的业务标识,该专用子帧的配置信息,以及该业务数据的传输信道信息。
上述只是本发明实施例一种可能的实现方式,该基站也可以在广播业务迁移消息后,通过授权频谱或者非授权频谱上的子帧将该专用子帧的配置信息,以及该业务数据的传输信道信息发送至终端,本发明对此不作限定。
可选地,若该专用子帧全部携带了业务数据,则该专用子帧的配置信息可以为该专用子帧占用的时间段,或者该专用子帧的数目。
需要说明的是,该基站与该终端之间可以预先约定该专用子帧的起始位置,例如,该基站可以通过专用子帧的前一个子帧发送该配置信息以及该业务数据的传输信道信息,该终端在子帧中获取到该配置信息以及该业务数据的传输信道信息后,直接从下一个子帧开始接收相应时间段/相应数目的专用子帧,并根据该传输信道信息以及该业务迁移消息内的业务标识获取该专用子帧携带的业务数据。另外,也可以由该基站每次通知终端专用子帧的起始位置,此时,该配置信息还包括该专用子帧的起始位置信息。
例如,如图6所示,图中的粗线方框为未授权频谱上的专用子帧,箭头所示方向为子帧在时间上的传输方向,该基站通过MBSFN子帧B发送该专用子帧的配置信息,以及该专用子帧携带业务数据的传输信道信息,其中,该专用子帧的配置信息包括该专用子帧占用的时间段/该专用子帧的数目,并且该配置信息还包括该专用子帧的起始位置信息,如图6所示,该起始位置信息指示MBSFN子帧B之后的下一个未授权频谱上的子帧为第一个专用子帧,这样,该终端在接收到该配置信息以及该传输信道信息后,根据该起始位置信息在该未授权频谱上连续接收相应时间段的专用子帧,或者该基站对接收到的子帧进行计数,连续接收6个专用子帧,并根据该传输信道信息以及该业务迁移消息内的业务标识获取该专用子帧携带的业务数据,无需对该专用子帧进行盲检。
可选地,该专用子帧的配置信息包括指示该专用子帧内携带有该业务数据的子帧的比特位图。
例如,该预设比特位图为六位比特数:101001,其中,每一个比特对应一个子帧,并且,若该比特取值为0,表示该比特对应的子帧是MBSFN专用子帧,若该比特取值为1,表示该比特对应的子帧是非MBSFN专用子帧,如图7所示,箭头所示方向为子帧在时间上的传输方向,基站与终端可以预先约定在MBSFN子帧B之后的下一个未授权频谱上的子帧为该比特位图的第一个比特所对应的子帧,后续比特依次对应后续的子帧。其中,该MBSFN子帧B携带业务迁移消息,该业务迁移消息包括该比特位图,则该终端在接收到该业务迁移消息后,按照该比特位图直接丢弃的非MBSFN专用子帧,根据传输信道信息以及业务标识获取MBMSFN专用子帧中携带的MBMS数据,无需对该比特位图对应的子帧进行盲检。可选地,该基站在该专用子帧中的最后一个子帧内携带指示信息,该指示消息用于该终端确定是否对后续子帧进行盲检,所述盲检用于确定后续子帧中是否携带新的业务数据。
具体地,若该指示信息指示该基站不可能再通过该至少一个未授权频谱发送业务数据,则终端可以无需针对该至少一个未授权频谱上的子帧进行盲检了,若该指示信息指示该基站有可能再通过该至少一个未授权频谱发送业务数据,则终端可以针对该至少一个未授权频谱上的子帧进行盲检。这样,该基站无需预先精确确定专用子帧的个数,对于数据量波动较大的业务,例如,群组Group业务,可以大致设定专用子帧的个数,在传输数据量较大,导致专用子帧不能全部携带时,可以通过后续子帧发送超出的数据,并在专用子帧的最后一个子帧中携带指示信息,指示终端对后续子帧进行盲检,这样,避免了专用子帧数设置过多,导致传输较少数据量时的子帧浪费。
进一步地,该终端接收该基站通过该授权频谱或者该至少一个未授权频谱广播的业务回迁消息,根据该业务回迁消息重新在该授权频谱上接收业务数据。
需要说明的是,上述只是针对第一频谱为未授权频谱,第二频谱为授权频谱的情况下进行说明的,但是本领域的技术人员应该理解到,本发明实施例在第一频谱和第二频谱均为授权频谱的情况下同样适用。
为了使本领域技术人员能够更清楚地理解本发明实施例提供的一种传输业务数据的方法的技术方案,下面通过具体的实施例进行详细说明,其中,本发明实施例是以基站获取到单个未授权频谱的使用权,并采用子帧调度的方式传输MBMS数据进行说明的,如图9所示,包括:
S901、基站在授权小区通过授权频谱向终端发送MBMS数据。
S902、该基站获取未授权频谱的使用权,并确定当前传输该MBMS数据发生拥塞。
S903、该基站通过该授权频谱广播业务迁移消息至终端。
其中,该业务迁移消息用于指示该终端在该未授权频谱上接收业务数据。
具体地,如图2所示,该基站可以在MBSFN子帧内通过DCI或者MACCE的形式向终端广播该业务迁移消息,其中,该DCI放在MBSFN子帧的公共搜索区,该MAC CE放在MBSFN子帧的MBMS传输区域。另外,该基站还可以通过无线资源控制RRC信令携带该业务迁移消息,本发明对此不作限定。
S904、该终端根据该业务迁移消息对该未授权频谱上的子帧进行盲检。
具体地,该业务迁移消息包括该未授权频谱的频率信息、占用该未授权频谱的未授权小区的小区标识、以及该MBMS数据的业务标识。则该终端在接收到该业务迁移消息后,根据该业务迁移消息中的小区标识以及频率信息,对该未授权频谱上的子帧进行监听,并对监听到的子帧进行盲检,以确定该子帧是否携带有MBMS数据。
S905、该基站通过该授权频谱向该终端发送调度指示消息。
其中,该调度指示消息包括传输信道标识,该传输信道标识用于指示传输该MBMS数据的传输信道。
需要说明的是,该基站也可以采用未授权频谱发送该调度指示消息。
S906、该基站通过该未授权频谱上的子帧传输该调度指示消息对应的 MBMS数据。
S907、该终端在盲检到该子帧携带有MBMS数据时,根据该调度指示消息获取该子帧中的该MBMS数据。
具体地,该终端在盲检到该子帧中携带有MBMS数据后,根据该传输信道标识在对应的传输信道获取传输信道信息,该传输信道信息用于指示该子帧携带的MBMS数据占用的物理资源位置,以及该MBMS数据的调制解调方式,这样,该终端根据该调制解调方式对该物理资源位置处的数据进行解码,并根据该业务标识从解码后的数据中获取该终端需要的业务数据。其中,该业务标识与该基站下发的业务一一对应,由于该基站可能同时传输多个业务的数据,因此,终端需要根据该业务标识从多个业务的数据中获取该终端需要的业务的数据。
S908、该基站在对该未授权频谱的使用权结束时,向该终端广播业务回迁消息。
具体地,该基站可以通过该授权频谱或者该未授权频谱广播该业务回迁消息。
S909、该终端根据该业务回迁消息重新在该授权频谱上接收MBMS数据。
需要说明的是,对于上述方法实施例,为了简单描述,故将其都表述为一系列的动作组合,但是本领域技术人员应该知悉,本发明并不受所描述的动作顺序的限制,其次,本领域技术人员也应该知悉,说明书中所描述的实施例均属于优选实施例,所涉及的动作和模块并不一定是本发明所必须的。
这样,由于基站可以采用未授权频谱传输业务数据,提高了未授权频谱的利用率。
结合图3和图8所示的方法实施例中的方式二,本发明实施例也可以在业务迁移消息中携带传输信道信息,以及该基站在至少一个未授权频谱上的专用子帧的配置信息,这样,该终端可以根据配置信息确定哪些子帧携带有MBMS数据,并直接根据该传输信道信息获取该专用子帧中的MBMS数据,无需对专用子帧进行盲检。
需要说明的是,本发明实施例中,基站在获取到多个未授权频谱时,也可以按照上述步骤同时采用其他未授权频谱传输MBMS数据。
另外,上述只是针对第一频谱为未授权频谱,第二频谱为授权频谱的情况下进行说明的,但是本领域的技术人员应该理解到,本发明实施例在第一频谱和第二频谱均为授权频谱的情况下同样适用。并且在第一频谱和该第二频谱均为授权频谱时,该基站可以将第二频谱上传输的业务数据迁移到资源较好的第一频谱上进行传输,提高了频谱的利用率。
本发明实施例提供一种基站100,用于实施如图3所示的传输业务数据的方法,该基站100如图10所示,包括:
获取单元101,用于获取至少一个第一频谱的使用权;
消息广播单元102,用于通过第二频谱广播业务迁移消息至终端,所述业务迁移消息用于指示所述终端在所述至少一个第一频谱上接收业务数据;
数据发送单元103,用于通过所述至少一个第一频谱将所述业务数据发送至所述终端。
可选地,该第一频谱与该第二频谱均可以为授权频谱,这样,在第二频谱的资源较差时,例如无线信号强度较弱,网络上下行速率较低,该基站可以将第二频谱上传输的业务数据迁移到资源较好的第一频谱上进行传输,提高了频谱利用率,加快了业务数据传输的速率,提升了用户体验。具体参照图1所示方法实施例中的对应描述,此处不再赘述。
可选地,该第一频谱为未授权频谱,该第二频谱为授权频谱,此时,该基站可以通过以下两种方式通过至少一个未授权频谱向终端发送业务数据。
方式一、基站采用子帧调度的方式通过该至少一个未授权频谱向终端发送业务数据。
方式一中,该基站在获取到至少一个未授权频谱的使用权后,通过授权频谱向终端广播业务迁移消息,该业务迁移消息可以包括:所述至少一个未授权频谱的频率信息,占用所述至少一个未授权频谱的未授权小区的 小区标识,以及所述业务数据的业务标识。
具体地,若该基站获得M个未授权频谱的使用权,M为大于或等于1的正整数,则所述数据发送单元103具体用于:向该终端发送对应该业务数据的调度指示消息,该调度指示消息包括该业务数据的传输信道标识,该传输信道标识用于指示传输该业务数据的传输信道;通过该M个未授权频谱上的子帧发送该业务数据。
这样,终端在接收到该业务迁移消息后,监听该未授权小区标识对应的未授权小区,并根据该频率信息对该未授权频谱上的子帧进行盲检。其中,终端对子帧进行盲检用于确定该子帧是否携带有业务数据。
进一步地,终端在盲检到子帧携带有业务数据后,根据该传输信道标识在对应的传输信道获取传输信道信息,该传输信道信息用于指示该子帧携带的业务数据占用的物理资源位置,以及该业务数据的调制解调方式。这样,该终端进一步根据该调制解调方式对该物理资源位置处的数据进行解码,并根据该业务标识从解码后的数据中获取该终端需要的业务数据。
此外,基站在获得多个未授权频谱的使用权时,不一定每次都使用所有的未授权频谱发送业务数据,具体地,在该基站获得M个未授权频谱的使用权时,若M为大于1的正整数,则所述数据发送单元103还用于:向该终端发送对应该业务数据的调度指示消息,该调度指示消息包括该业务数据的传输信道标识,以及占用N个未授权频谱的未授权小区的小区标识,该传输信道标识用于指示传输该业务数据的传输信道;该N个未授权频谱为该M个未授权频谱中的任意N个未授权频谱,其中,N为正整数,且1≤N≤M;通过该N个未授权频谱上的子帧发送该业务数据。
本发明实施例还可以通过方式一进行业务数据的重传,具体地,终端在未授权小区没能收到,或者没能正确收到业务数据时,该终端可以向授权小区或者该未授权小区发送重传指示消息,其中,该重传指示消息可以包括该终端没有收到的业务数据包的序列号,或者没有正确收到业务数据的子帧号,这样,该基站在收到该重传指示消息后,根据该序列号或者该子帧号,确定需要进行重传的业务数据,并通过该授权小区或者未授权小区将该业务数据重传至该终端。此时,该调度指示消息还可以包括重传标识,以便该终端能够区分重传的业务数据。
其中,该基站也可以通过该未授权小区外的另一个小区重传该业务数据,所述另一个小区可以是授权小区,也可以是另一个未授权小区。基站通过另一个小区重传业务数据可以解决由于“隐藏节点”的原因,导致终端无法接收数据的问题。例如,某一终端同时处于第一小区和第二小区内,且该第一小区的基站与该第二小区的基站由于相隔较远,无法检测到对方的存在,此时,第一小区的基站与该第二小区的基站互为隐藏节点,这样,若第一小区和第二小区同时向该终端发送业务数据,造成数据冲突,就会导致该终端无法接收数据。由于第一小区和第二小区重传的时间间隔相同,若该双方基站通过同一个小区进行重传,那么终端还是会由于数据冲突无法接收重传的业务数据,此时,基站可以通过另一个小区进行重传,从而解决隐藏节点的问题。
上述利用未授权小区进行业务数据重传的方法,降低了终端的丢包率。
方式二、该数据发送单元103具体用于:通过所述至少一个未授权频谱上的专用子帧将所述业务数据发送至所述终端;将所述专用子帧的配置信息以及所述业务数据的传输信道信息发送至所述终端。
所述专用子帧的含义可以是专门用于携带业务数据的子帧,比如在某个时间段内连续的数个子帧可以都看作是专用子帧;或者通过配置信息指示的用于传输业务数据的子帧也都可以看作是专用子帧。
可选地,基站可以通过该业务迁移消息将该专用子帧的配置信息以及该业务数据的传输信道信息发送至该终端,也就是说,在方式二中,该业务迁移消息包括该至少一个未授权频谱的频率信息,占用该至少一个未授权频谱的未授权小区的小区标识,该业务数据的业务标识,该专用子帧的配置信息,以及该业务数据的传输信道信息。
上述只是本发明实施例一种可能的实现方式,该基站也可以在广播业务迁移消息后,通过授权频谱或者非授权频谱上的子帧将该专用子帧的配置信息,以及该业务数据的传输信道信息发送至终端,本发明对此不作限定。
可选地,所述专用子帧的配置信息包括所述专用子帧占用的时间段或者所述专用子帧的数目。
需要说明的是,该基站与该终端之间可以预先约定该专用子帧的起始位置,例如,该基站可以通过专用子帧的前一个子帧发送该配置信息以及该业务数据的传输信道信息,该终端在子帧中获取到该配置信息以及该业务数据的传输信道信息后,直接从下一个子帧开始接收相应时间段/相应数目的专用子帧,并根据该传输信道信息以及该业务迁移消息内的业务标识获取该专用子帧携带的业务数据。另外,也可以由该基站每次通知终端专用子帧的起始位置,此时,该配置信息还包括该专用子帧的起始位置信息。
可选地,该专用子帧的配置信息包括比特位图,该比特位图用于指示携带该业务数据的专用子帧。
可选地,该基站在该专用子帧中的最后一个子帧内携带指示信息,该指示消息用于该终端确定是否对后续子帧进行盲检,所述盲检用于确定后续子帧中是否携带新的业务数据。
具体地,若该指示信息指示该基站不可能再通过该至少一个未授权频谱发送业务数据,则终端可以无需针对该至少一个未授权频谱上的子帧进行盲检了,若该指示信息指示该基站有可能再通过该至少一个未授权频谱发送业务数据,则终端可以针对该至少一个未授权频谱上的子帧进行盲检。这样,该基站无需预先精确确定专用子帧的个数,对于数据量波动较大的业务,例如,群组Group业务,可以大致设定专用子帧的个数,在传输数据量较大,导致专用子帧不能全部携带时,可以通过后续子帧发送超出的数据,并在专用子帧的最后一个子帧中携带指示信息,指示终端对后续子帧进行盲检,这样,避免了专用子帧数设置过多,导致传输较少数据量时的子帧浪费。
上述均是以MBMS数据举例说明,但是本领域的技术人员应该知道,本发明对于传输单播业务同样适用。
进一步地,该基站在对该至少一个未授权频谱的使用权结束时,通过该授权频谱或者该至少一个未授权频谱广播业务回迁消息,该业务回迁消息用于指示终端重新在该授权频谱上接收业务数据。
采用上述基站,该基站可以采用未授权频谱传输业务数据,提高了未授权频谱的利用率。
另外,上述只是针对第一频谱为未授权频谱,第二频谱为授权频谱的情况下进行说明的,但是本领域的技术人员应该理解到,本发明实施例在第一频谱和第二频谱均为授权频谱的情况下同样适用。
通过以上的实施方式的描述,所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,仅以上述各功能模块的划分进行举例说明,实际应用中,可以根据需要而将上述功能分配由不同的功能模块完成,即将装置的内部结构划分成不同的功能模块,以完成以上描述的全部或者部分功能。上述描述的单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。另外,该基站也可以通过收发器和处理器配合实现。
本发明实施例提供一种终端11,用于实施如图8所示的业务数据传输的方法,该终端11如图11所示,包括:
消息接收单元111,用于接收基站通过第二频谱广播的业务迁移消息,所述业务迁移消息用于指示所述终端在至少一个第一频谱上接收业务数据;
数据获取单元112,用于根据所述业务迁移消息接收所述基站通过所述至少一个第一频谱发送的所述业务数据。
可选地,该第一频谱与该第二频谱均可以为授权频谱,这样,在第二频谱的资源较差时,例如无线信号强度较弱,网络上下行速率较低,该基站可以将第二频谱上传输的业务数据迁移到资源较好的第一频谱上进行传输,提高了频谱利用率,加快了业务数据传输的速率,提升了用户体验。具体参照图8所示方法实施例中的对应描述,此处不再赘述。
可选地,该第一频谱为未授权频谱,该第二频谱为授权频谱,此时,该终端可以通过以下两种方式接收基站向终端发送的业务数据。
方式一、该终端接收该基站采用调度方式通过该至少一个未授权频谱发送的业务数据。
基站在获取到至少一个未授权频谱的使用权后,通过授权频谱向终端发送业务迁移消息,该业务迁移消息可以包括:所述至少一个未授权频谱 的频率信息,占用所述至少一个未授权频谱的未授权小区的小区标识,以及所述业务数据的业务标识。
进一步地,若所述基站获得M个未授权频谱的使用权,M为大于或等于1的正整数,则所述数据获取单元112具体用于:根据所述业务迁移消息接收所述基站通过所述M个未授权频谱发送的子帧;所述消息接收单元112还用于,接收所述基站发送的调度指示消息,所述调度指示消息包括所述业务数据的传输信道标识,所述传输信道标识用于指示传输所述业务数据的传输信道;所述数据获取单元112还用于,根据所述调度指示消息获取所述子帧中携带的所述业务数据。
其中,该调度指示消息可以由基站通过授权频谱发送,也可以由基站通过未授权频谱发送。
具体地,终端在接收到该业务迁移消息后,监听该未授权小区标识对应的未授权小区,并根据该频率信息对该未授权频谱上的子帧进行盲检,该终端在盲检到子帧携带有业务数据后,根据该传输信道标识在对应的传输信道获取传输信道信息,该传输信道信息用于指示该子帧携带的业务数据占用的物理资源位置,以及该业务数据的调制解调方式。这样,该终端进一步根据该调制解调方式对该物理资源位置处的数据进行解码,并根据该业务标识从解码后的数据中获取该终端需要的业务数据。
需要说明的是,基站在获得多个未授权频谱的使用权时,不一定每次都使用所有的未授权频谱发送业务数据,具体地,在所述基站获得M个未授权频谱的使用权时,若M为大于1的正整数,所述消息接收单元111具体用于,接收该基站发送的调度指示消息,该调度指示消息包括该业务数据的传输信道标识,以及占用N个未授权频谱的未授权小区的小区标识,该传输信道标识用于指示传输该业务数据的传输信道;该N个未授权频谱为该M个未授权频谱中的任意N个未授权频谱,其中,N为正整数,且1≤N≤M;该数据获取单元112还用于,根据该业务迁移消息接收该基站通过该N个未授权频谱发送的子帧;根据该调度指示消息获取该N个未授权频谱上的子帧中携带的该业务数据。
也就是说,该业务迁移消息中的未授权小区的小区标识可以是指该基站可能传输业务数据的未授权小区的小区标识,例如,该基站获得了第一 未授权频谱和第二未授权频谱的使用权,则该业务迁移消息中携带的小区标识即为占用该第一未授权频谱的未授权小区的小区标识和占用该第二未授权频谱的未授权小区的小区标识,而该调度指示消息中的小区标识可以为当前发送业务数据的未授权小区的小区标识,其可以为占用该第一未授权频谱的未授权小区的小区标识,和/或,占用该第二未授权频谱的未授权小区的小区标识。
可选地,在方式一中,终端在未授权小区没能收到,或者没能正确收到业务数据时,该终端可以向授权小区或者该未授权小区发送重传指示消息,其中,该重传指示消息可以包括该终端没有收到的业务数据包的序列号,或者没有正确收到业务数据的子帧号,这样,该基站在收到该重传指示消息后,根据该序列号或者该子帧号,确定需要进行重传的业务数据,并通过该授权小区或者未授权小区将该业务数据重传至该终端。此时,该调度指示消息还可以包括重传标识,以便该终端能够区分重传的业务数据。
其中,该基站也可以通过该未授权小区外的另一个小区重传该业务数据,所述另一个小区可以是授权小区,也可以是另一个未授权小区。基站通过另一个小区重传业务数据可以解决由于“隐藏节点”的原因,导致终端无法接收数据的问题。例如,某一终端同时处于第一小区和第二小区内,且该第一小区的基站与该第二小区的基站由于相隔较远,无法检测到对方的存在,此时,第一小区的基站与该第二小区的基站互为隐藏节点,这样,若第一小区和第二小区同时向该终端发送业务数据,造成数据冲突,就会导致该终端无法接收数据。由于第一小区和第二小区重传的时间间隔相同,若该双方基站通过同一个小区进行重传,那么终端还是会由于数据冲突无法接收重传的业务数据,此时,基站可以通过另一个小区进行重传,从而解决隐藏节点的问题。
上述利用未授权小区进行业务数据重传的方法,降低了终端的丢包率。
方式二、所述消息接收单元111还用于,接收所述基站发送的专用子帧的配置信息以及所述业务数据的传输信道信息;所述数据获取单元112,具体用于根据所述业务迁移消息,所述专用子帧的配置信息以及所述业务数据的传输信道信息获取所述至少一个未授权频谱上的专用子帧携带的 所述业务数据。
所述专用子帧的含义可以是专门用于携带业务数据的子帧,比如在某个时间段内连续的数个子帧可以都看作是专用子帧;或者通过配置信息指示的用于传输业务数据的子帧也都可以看作是专用子帧。
可选地,基站可以通过该业务迁移消息将该专用子帧的配置信息以及该业务数据的传输信道信息发送至该终端,也就是说,在方式二中,该业务迁移消息包括该至少一个未授权频谱的频率信息,占用该至少一个未授权频谱的未授权小区的小区标识,该业务数据的业务标识,该专用子帧的配置信息,以及该业务数据的传输信道信息。
上述只是本发明实施例一种可能的实现方式,该基站也可以在广播业务迁移消息后,通过授权频谱或者非授权频谱上的子帧将该专用子帧的配置信息,以及该业务数据的传输信道信息发送至终端,本发明对此不作限定。
可选地,若所述专用子帧全部携带有所述业务数据,则所述专用子帧的配置信息包括所述专用子帧占用的时间段或者所述专用子帧的数目。
需要说明的是,该基站与该终端之间可以预先约定该专用子帧的起始位置,例如,该基站可以通过专用子帧的前一个子帧发送该配置信息以及该业务数据的传输信道信息,该终端在子帧中获取到该配置信息以及该业务数据的传输信道信息后,直接从下一个子帧开始接收相应时间段/相应数目的专用子帧,并根据该传输信道信息以及该业务迁移消息内的业务标识获取该专用子帧携带的业务数据。另外,也可以由该基站每次通知终端专用子帧的起始位置,此时,该配置信息还包括该专用子帧的起始位置信息。
可选地,所述专用子帧的配置信息包括比特位图,所述比特位图用于指示携带所述业务数据的专用子帧。
可选地,所述终端还包括确定单元113,用于根据所述专用子帧中的最后一个子帧内携带的指示信息确定是否对后续子帧进行盲检,所述盲检用于确定所述后续子帧中是否携带新的业务数据。
具体地,若该指示信息指示该基站不可能再通过该至少一个未授权频谱发送业务数据,则终端可以无需针对该至少一个未授权频谱上的子帧进 行盲检了,若该指示信息指示该基站有可能再通过该至少一个未授权频谱发送业务数据,则终端可以针对该至少一个未授权频谱上的子帧进行盲检。这样,该基站无需预先精确确定专用子帧的个数,对于数据量波动较大的业务,例如,群组Group业务,可以大致设定专用子帧的个数,在传输数据量较大,导致专用子帧不能全部携带时,可以通过后续子帧发送超出的数据,并在专用子帧的最后一个子帧中携带指示信息,指示终端对后续子帧进行盲检,这样,避免了专用子帧数设置过多,导致传输较少数据量时的子帧浪费。
进一步地,该终端接收该基站通过该授权频谱或者该至少一个未授权频谱广播的业务回迁消息,根据该业务回迁消息重新在该授权频谱上接收业务数据。
另外,上述只是针对第一频谱为未授权频谱,第二频谱为授权频谱的情况下进行说明的,但是本领域的技术人员应该理解到,本发明实施例在第一频谱和第二频谱均为授权频谱的情况下同样适用。
通过以上的实施方式的描述,所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,仅以上述各功能模块的划分进行举例说明,实际应用中,可以根据需要而将上述功能分配由不同的功能模块完成,即将装置的内部结构划分成不同的功能模块,以完成以上描述的全部或者部分功能。上述描述的单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。另外,该终端也可以通过收发器和处理器配合实现。
本发明实施例提供另一种基站12,如图12所示,该基站12包括:
总线121,以及连接到总线的处理器122、存储器123、输入模块124和输出模块125,其中,所述处理器122、所述存储器123、所述输入模块124和所述输出模块125通过所述总线121完成相互间的通信,输入模块124和输出模块125用于与外部设备进行交互。
处理器122可能是一个多核中央处理器CPU,或者是特定集成电路ASIC(Application Specific Integrated Circuit),或者是被配置成实施本发明实施例的一个或多个集成电路。
存储器123用于存储指令,所述程序代码包括计算机操作指令和网络流图。存储器123可能包含高速RAM存储器,也可能还包括非易失性存储器(non-volatlie memory),例如至少一个磁盘存储器。存储器123也可以是存储器阵列。
该基站12通过所述处理器122、所述输入模块124和所述输出模块125,配合实现如图3所示的所有方法实施例,具体可参照图3对应的方法实施例中的相应描述,此处不再赘述。
本发明实施例提供另一种终端13,如图13所示,该基站13包括:
总线131,以及连接到总线的处理器132、存储器133、输入模块134和输出模块135,其中,所述处理器132、所述存储器133、所述输入模块134和所述输出模块135通过所述总线131完成相互间的通信,输入模块134和输出模块125用于与外部设备进行交互。
处理器132可能是一个多核中央处理器CPU,或者是特定集成电路ASIC(Application Specific Integrated Circuit),或者是被配置成实施本发明实施例的一个或多个集成电路。
存储器133用于存储指令,所述程序代码包括计算机操作指令和网络流图。存储器133可能包含高速RAM存储器,也可能还包括非易失性存储器(non-volatile memory),例如至少一个磁盘存储器。存储器133也可以是存储器阵列。
该终端13通过所述处理器132、所述输入模块134和所述输出模块135,配合实现如图8所示的所有方法实施例,具体可参照图8对应的方法实施例中的相应描述,此处不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。
另外,在本发明各个实施例中的装置中,各功能单元可以集成在一个 处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。且上述的各单元既可以采用硬件的形式实现,也可以采用硬件加软件功能单元的形式实现。
实现上述方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成,前述的程序可以存储于计算机可读取存储介质中,该程序在执行时,执行包括上述方法实施例的步骤;而前述的存储介质包括:U盘、移动硬盘、ROM(Read Only Memory,只读存储器)、RAM(Random Access Memory,随机存取存储器)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本发明的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到的变化或替换,都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应以权利要求的保护范围为准。

Claims (38)

  1. 一种传输业务数据的方法,其特征在于,包括:
    基站获取至少一个第一频谱的使用权;
    所述基站通过第二频谱广播业务迁移消息至终端,所述业务迁移消息用于指示所述终端在所述至少一个第一频谱上接收业务数据;
    所述基站通过所述至少一个第一频谱将所述业务数据发送至所述终端。
  2. 根据权利要求1所述的方法,其特征在于,所述业务迁移消息包括:所述至少一个第一频谱的频率信息,占用所述至少一个第一频谱的小区的小区标识,以及所述业务数据的业务标识。
  3. 根据权利要求1或2所述的方法,其特征在于,所述基站获得M个第一频谱的使用权,M为大于或等于1的正整数,所述基站通过所述至少一个第一频谱将所述业务数据发送至所述终端具体包括:
    所述基站向所述终端发送对应所述业务数据的调度指示消息,所述调度指示消息包括所述业务数据的传输信道标识,所述传输信道标识用于指示传输所述业务数据的传输信道;
    所述基站通过所述M个第一频谱上的子帧发送所述业务数据。
  4. 根据权利要求1或2所述的方法,其特征在于,所述基站获得M个第一频谱的使用权,M为大于1的正整数,所述基站通过所述至少一个第一频谱将所述业务数据发送至所述终端具体包括:
    所述基站向所述终端发送对应所述业务数据的调度指示消息,所述调度指示消息包括所述业务数据的传输信道标识,以及占用N个第一频谱的未授权小区的小区标识,所述传输信道标识用于指示传输所述业务数据的传输信道;所述N个第一频谱为所述M个第一频谱中的任意N个第一频谱,其中,N为正整数,且1≤N≤M;
    所述基站通过所述N个第一频谱上的子帧发送所述业务数据。
  5. 根据权利要求1或2所述的方法,其特征在于,所述基站通过所述至少一个第一频谱将所述业务数据发送至所述终端具体包括:
    所述基站将所述至少一个第一频谱上的专用子帧的配置信息以及所述业务数据的传输信道信息发送至所述终端;
    所述基站通过所述专用子帧将所述业务数据发送至所述终端。
  6. 根据权利要求5所述的方法,其特征在于,所述专用子帧的配置信息包括所述专用子帧占用的时间段或者所述专用子帧的数目。
  7. 根据权利要求5所述的方法,其特征在于,所述专用子帧的配置信息包括比特位图,所述比特位图用于指示携带所述业务数据的专用子帧。
  8. 根据权利要求5至7任一项所述的方法,其特征在于,所述方法还包括:
    所述基站在所述专用子帧中的最后一个子帧内携带指示信息,所述指示信息用于所述终端确定是否对后续子帧进行盲检,所述盲检用于确定所述后续子帧中是否携带新的业务数据。
  9. 根据权利要求1至8任一项所述的方法,其特征在于,所述业务数据为多媒体广播组播业务MBMS数据,或,单播业务数据。
  10. 根据权利要求1至9任一项所述的方法,其特征在于,所述第一频谱为未授权频谱,所述第二频谱为授权频谱。
  11. 一种传输业务数据的方法,其特征在于,包括:
    终端接收基站通过第二频谱广播的业务迁移消息,所述业务迁移消息用于指示所述终端在至少一个第一频谱上接收业务数据;
    所述终端根据所述业务迁移消息接收所述基站通过所述至少一个第一频谱发送的所述业务数据。
  12. 根据权利要求11所述的方法,其特征在于,所述业务迁移消息包括:所述至少一个第一频谱的频率信息,占用所述至少一个第一频谱的小区的小区标识,以及所述业务数据的业务标识。
  13. 根据权利要求11或12所述的方法,其特征在于,所述基站获得M个第一频谱的使用权,M为大于1的正整数,所述终端根据所述业务迁移消息接收所述基站通过所述至少一个第一频谱发送的所述业务数据具体包括:
    所述终端接收所述基站发送的调度指示消息,所述调度指示消息包括所述业务数据的传输信道标识,所述传输信道标识用于指示 传输所述业务数据的传输信道;
    所述终端根据所述业务迁移消息接收所述基站通过所述M个第一频谱发送的子帧;
    所述终端根据所述调度指示消息获取所述子帧中携带的所述业务数据。
  14. 根据权利要求11或12所述的方法,其特征在于,所述基站获得M个第一频谱的使用权,M为大于1的正整数,所述终端根据所述业务迁移消息接收所述基站通过所述至少一个第一频谱发送的所述业务数据具体包括:
    所述终端接收所述基站发送的调度指示消息,所述调度指示消息包括所述业务数据的传输信道标识,以及占用N个第一频谱的未授权小区的小区标识,所述传输信道标识用于指示传输所述业务数据的传输信道;所述N个第一频谱为所述M个第一频谱中的任意N个第一频谱,其中,N为正整数,且1≤N≤M;
    所述终端根据所述业务迁移消息接收所述基站通过所述N个第一频谱发送的子帧;
    所述终端根据所述调度指示消息获取所述N个第一频谱上的子帧中携带的所述业务数据。
  15. 根据权利要求11或12所述的方法,其特征在于,所述终端根据所述业务迁移消息接收所述基站通过所述至少一个第一频谱发送的所述业务数据具体包括:
    所述终端接收所述基站发送的专用子帧的配置信息以及所述业务数据的传输信道信息;
    所述终端根据所述业务迁移消息,所述专用子帧的配置信息以及所述业务数据的传输信道信息获取所述至少一个第一频谱上的专用子帧携带的所述业务数据。
  16. 根据权利要求15所述的方法,其特征在于,若所述专用子帧全部携带有所述业务数据,则所述专用子帧的配置信息包括所述专用子帧占用的时间段或者所述专用子帧的数目。
  17. 根据权利要求15所述的方法,其特征在于,所述专用子帧的配置信息包括比特位图,所述比特位图用于指示携带所述业务数据的专用子帧。
  18. 根据权利要求15至17任一项所述的方法,其特征在于,所述方法还包括:所述终端根据所述专用子帧中的最后一个子帧内携带的指示信息确定是否对后续子帧进行盲检,所述盲检用于确定所述后续子帧中是否携带新的业务数据。
  19. 根据权利要求11至18任一项所述的方法,其特征在于,所述业务数据为多媒体广播组播业务MBMS数据,或,单播业务数据。
  20. 根据权利要求11至19任一项所述的方法,其特征在于,所述第一频谱为未授权频谱,所述第二频谱为授权频谱。
  21. 一种基站,其特征在于,包括:
    获取单元,用于获取至少一个第一频谱的使用权;
    消息广播单元,用于通过第二频谱广播业务迁移消息至终端,所述业务迁移消息用于指示所述终端在所述至少一个第一频谱上接收业务数据;
    数据发送单元,用于通过所述至少一个第一频谱将所述业务数据发送至所述终端。
  22. 根据权利要求21所述的基站,其特征在于,所述业务迁移消息包括:所述至少一个第一频谱的频率信息,占用所述至少一个第一频谱的小区的小区标识,以及所述业务数据的业务标识。
  23. 根据权利要求21或22所述的基站,其特征在于,所述基站获得M个第一频谱的使用权,M为大于1的正整数,所述数据发送单元具体用于:
    向所述终端发送对应所述业务数据的调度指示消息,所述调度指示消息包括所述业务数据的传输信道标识,所述传输信道标识用于指示传输所述业务数据的传输信道;
    通过所述M个第一频谱上的子帧发送所述业务数据。
  24. 根据权利要求21或22所述的基站,其特征在于,所述基站获得M个第一频谱的使用权,M为大于1的正整数,所述数据发送单元具体用于:
    向所述终端发送对应所述业务数据的调度指示消息,所述调度指示消息包括所述业务数据的传输信道标识,以及占用N个第一频谱的未授权小区的小区标识,所述传输信道标识用于指示传输所述业务数据的传输信道;所述N个第一频谱为所述M个第一频谱中的 任意N个第一频谱,其中,N为正整数,且1≤N≤M;
    通过所述N个第一频谱上的子帧发送所述业务数据。
  25. 根据权利要求21或22所述的基站,其特征在于,所述数据发送单元具体用于:
    将所述至少一个第一频谱上的专用子帧的配置信息以及所述业务数据的传输信道信息发送至所述终端;
    通过所述专用子帧将所述业务数据发送至所述终端。
  26. 根据权利要求25所述的基站,其特征在于,所述专用子帧的配置信息包括所述专用子帧占用的时间段或者所述专用子帧的数目。
  27. 根据权利要求25所述的基站,其特征在于,所述专用子帧的配置信息包括比特位图,所述比特位图用于指示携带所述业务数据的专用子帧。
  28. 根据权利要求25至27任一项所述的基站,其特征在于,所述数据发送单元还用于:
    在所述专用子帧中的最后一个子帧内携带指示信息,所述指示信息用于所述终端确定是否对后续子帧进行盲检,所述盲检用于确定所述后续子帧中是否携带新的业务数据。
  29. 根据权利要求21至28任一项所述的基站,其特征在于,所述第一频谱为未授权频谱,所述第二频谱为授权频谱。
  30. 一种终端,其特征在于,包括:
    消息接收单元,用于接收基站通过第二频谱广播的业务迁移消息,所述业务迁移消息用于指示所述终端在至少一个第一频谱上接收业务数据;
    数据获取单元,用于根据所述业务迁移消息接收所述基站通过所述至少一个第一频谱发送的所述业务数据。
  31. 根据权利要求30所述的终端,其特征在于,所述业务迁移消息包括:所述至少一个第一频谱的频率信息,占用所述至少一个第一频谱的小区的小区标识,以及所述业务数据的业务标识。
  32. 根据权利要求30或31所述的终端,其特征在于,所述基站获得M个第一频谱的使用权,M为大于1的正整数,所述消息接收单元还用于,接收所述基站发送的调度指示消息,所述调度指示 消息包括所述业务数据的传输信道标识,所述传输信道标识用于指示传输所述业务数据的传输信道;根据所述业务迁移消息接收所述基站通过所述M个第一频谱发送的子帧;
    所述数据获取单元还用于,根据所述调度指示消息获取所述子帧中携带的所述业务数据。
  33. 根据权利要求30或31所述的终端,其特征在于,所述基站获得M个第一频谱的使用权,M为大于1的正整数,所述消息接收单元具体用于:
    接收所述基站发送的调度指示消息,所述调度指示消息包括所述业务数据的传输信道标识,以及占用N个第一频谱的未授权小区的小区标识,所述传输信道标识用于指示传输所述业务数据的传输信道;所述N个第一频谱为所述M个第一频谱中的任意N个第一频谱,其中,N为正整数,且1≤N≤M;
    所述数据获取单元还用于,根据所述业务迁移消息接收所述基站通过所述N个第一频谱发送的子帧;根据所述调度指示消息获取所述N个第一频谱上的子帧中携带的所述业务数据。
  34. 根据权利要求30或31所述的终端,其特征在于,所述消息接收单元还用于,接收所述基站发送的专用子帧的配置信息以及所述业务数据的传输信道信息;
    所述数据获取单元,具体用于根据所述业务迁移消息,所述专用子帧的配置信息以及所述业务数据的传输信道信息获取所述至少一个第一频谱上的专用子帧携带的所述业务数据。
  35. 根据权利要求34所述的终端,其特征在于,若所述专用子帧全部携带有所述业务数据,则所述专用子帧的配置信息包括所述专用子帧占用的时间段或者所述专用子帧的数目。
  36. 根据权利要求34所述的终端,其特征在于,所述专用子帧的配置信息包括比特位图,所述比特位图用于指示携带所述业务数据的专用子帧。
  37. 根据权利要求34至36任一项所述的终端,其特征在于,所述终端还包括确定单元,用于根据所述专用子帧中的最后一个子帧内携带的指示信息确定是否对后续子帧进行盲检,所述盲检用于确定所述后续子帧中是否携带新的业务数据。
  38. 根据权利要求30至36任一项所述的终端,其特征在于,所述第一频谱为未授权频谱,所述第二频谱为授权频谱。
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