WO2018137188A1 - 一种用于覆盖增强的资源配置方法及装置 - Google Patents

一种用于覆盖增强的资源配置方法及装置 Download PDF

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Publication number
WO2018137188A1
WO2018137188A1 PCT/CN2017/072656 CN2017072656W WO2018137188A1 WO 2018137188 A1 WO2018137188 A1 WO 2018137188A1 CN 2017072656 W CN2017072656 W CN 2017072656W WO 2018137188 A1 WO2018137188 A1 WO 2018137188A1
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WO
WIPO (PCT)
Prior art keywords
terminal device
base station
physical resource
indication information
parameter
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Application number
PCT/CN2017/072656
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English (en)
French (fr)
Inventor
李振宇
李汉涛
李志军
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 PCT/CN2017/072656 priority Critical patent/WO2018137188A1/zh
Priority to CN201780082880.3A priority patent/CN110192416A/zh
Priority to EP17893631.6A priority patent/EP3565344A4/en
Publication of WO2018137188A1 publication Critical patent/WO2018137188A1/zh
Priority to US16/520,945 priority patent/US20190349779A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/26—Cell enhancers or enhancement, e.g. for tunnels, building shadow
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02—Data link layer protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload

Definitions

  • the present application relates to the field of wireless communication technologies, and in particular, to a resource allocation method and apparatus for coverage enhancement.
  • LTE Long Term Evolution
  • LTE Licensed Assisted Access
  • the unlicense system needs to be applied to many scenarios that require deep coverage, such as factories, packing ports, and warehouses. Deep coverage can enhance coverage, expand cell coverage, reduce base station deployment costs, and reduce the cost of self-built stations in enterprises and factories.
  • Frequency resource sharing is a feature of unlicense frequency. Due to frequency sharing, different systems and different systems can work on the same unlicense frequency, but in order to ensure unlicense frequency can be used efficiently and fairly, spectrum regulations
  • the power spectrum of each wireless transmitting unit cannot exceed the threshold, for example, cannot exceed 10 dBm/1 MHz.
  • the limitation of the power spectrum of the transmitting unit further limits the signal coverage of the unlicense frequency, so the demand for coverage enhancement technology is urgent.
  • the technique of reducing the code rate is used to achieve coverage enhancement and improve coverage.
  • MCS modulation and coding scheme
  • PRBs physical resource blocks
  • the base station indicates the MCS level and the number of PRBs used by the terminal through the control channel.
  • the terminal obtains the transport block size (TBS) index (index) by looking up the MCS table, as shown in Table 1 below, and then the TBS index and the number of PRBs to check the following table 2 to obtain the transport block size TBS, which can be obtained in the prior art.
  • TBS transport block size
  • the lowest supported bit rate is MCS 0, and the corresponding code rate is approximately 1/10 QPSK.
  • AMC Adaptive Moderation and Coding
  • the prior art cannot support a lower bit rate than the MCS 0. If it is required to support a lower code rate, the above two tables need to be modified, and the protocol changes are relatively large, and the current terminal only supports the TBS value that the current 3GPP protocol already supports. Newly added TBS values will cause the terminal hardware to be changed.
  • the embodiment of the present application provides a resource allocation method and apparatus for coverage enhancement, and determines a TBS value that supports a lower code rate than MCS 0 without modifying the protocol to a large extent and without changing the terminal hardware.
  • a resource configuration method for coverage enhancement includes: the base station sends first indication information to a terminal device, where the first indication information includes a first physical resource block, and the physical resource block uses Transmitting data transmitted between the base station and the terminal device; the base station sends second indication information to the terminal device, where the second indication information carries a first parameter, and the first parameter is used by the terminal device Determining, according to the first parameter and the number of the first physical resource blocks, the number of the second physical resource blocks, where the number of the second physical resource blocks is used to determine a transport block size TBS; wherein the first parameter is less than or Equal to 1.
  • the sending order of the first indication message and the second indication message is not limited.
  • the base station sends a first signaling to the terminal, where the first signaling is used to notify the terminal to enter a coverage enhancement mode; and the base station sends a physical resource block PRB conversion coefficient and allocation to the terminal.
  • a first PRB number actually occupied by the terminal where a conversion coefficient of the PRB corresponds to a coverage level of the terminal, and the conversion coefficient is less than or equal to 1;
  • the base station according to a PRB conversion coefficient and Determining, by the number of the first PRBs, a number of second PRBs for querying a PRB and a transport block size TBS lookup table when the data is transmitted; and determining, by the base station, the number of the second PRBs according to the PRB and TBS comparison table.
  • a value of the corresponding TBS the base station performs data transmission according to the value of the TBS.
  • the data transmission is performed by using a low code rate, and the coverage is increased.
  • the lower the code rate is, the larger the number of the first PRB is, and the PRB conversion coefficient is corresponding to the low code rate.
  • the table is used to determine the value of the TBS. The method does not change the protocol, and the terminal does not need hardware changes.
  • the first parameter corresponds to a coverage level of the terminal device.
  • the method further includes: determining, by the base station, a transport block size TBS according to the number of the second physical resource blocks; Transmitting data to the terminal device according to the TBS.
  • the method further includes: determining, by the base station, a transport block size TBS according to the number of the second physical resource blocks; Receiving data from the terminal device according to the TBS.
  • the method before the sending, by the base station, the first indication information to the terminal device, the method further includes: determining, by the base station, a coverage level corresponding to the terminal device, specifically:
  • the base station determines the coverage level corresponding to the terminal device according to the measurement mode, the capability reported by the terminal device, or the signaling reported by the terminal device.
  • the base station sends the second indication information to the terminal device, including:
  • the base station sends the second indication information to the terminal by using a physical downlink control channel PDCCH or an enhanced physical downlink control channel ePDCCH.
  • the method before the base station sends the first signaling to the terminal, the method further includes:
  • the base station Determining, by the base station, the coverage level corresponding to the terminal according to the measurement or the capability reported by the terminal or the signaling reported by the terminal; wherein the signaling reported by the terminal includes but is not limited to an SR message or a MAC CE message. , RRC message and PRACH notification.
  • the base station sends a PRB conversion coefficient corresponding to the coverage level of the terminal to the terminal according to the coverage level of the terminal.
  • the base station sends a PRB conversion coefficient to the terminal, including:
  • the base station sends a PRB conversion coefficient to the terminal by using a physical downlink control channel PDCCH or ePDCCH.
  • the base station performs data transmission according to the value of the TBS, including:
  • the base station performs uplink data demodulation or downlink data transmission according to the value of the TBS.
  • a second aspect, a resource configuration method for coverage enhancement includes: receiving, by a terminal device, first indication information and second indication information, where the first indication information includes a first physical resource block number, where The physical resource block is configured to carry data transmitted between the base station and the terminal device; the second indication information carries a first parameter; and the terminal device is based on the first parameter and the number of the first physical resource block Determining a number of second physical resource blocks; the terminal device determining a transport block size TBS according to the number of the second physical resource blocks; wherein the first parameter is less than or equal to 1.
  • the terminal when receiving the first signaling sent by the base station, the terminal cuts into the coverage enhancement mode, where the first signaling is used to notify the terminal to enter the coverage enhancement mode; the terminal receives the base station to send a physical resource block PRB conversion coefficient and a first PRB number actually allocated to the terminal, wherein a conversion coefficient of the PRB corresponds to a coverage level of the terminal, and the conversion coefficient is less than or equal to 1
  • the terminal performs data transmission, determining, according to the PRB conversion coefficient sent by the base station and the number of the first PRB, the number of second PRBs used to query the PRB and the transport block size TBS comparison table during the data transmission; Determining, by the terminal, the value of the TBS corresponding to the number of the second PRB according to the PRB and the TBS comparison table; the terminal performing the data transmission according to the value of the TBS, where the data transmission includes an uplink data solution Transfer or downlink data transmission.
  • the data transmission is performed by using a low code rate, and the coverage is increased.
  • the lower the code rate is, the larger the number of the first PRB is, and the PRB conversion coefficient is corresponding to the low code rate.
  • the table is used to determine the value of the TBS. The method does not change the protocol, and the terminal does not need hardware changes.
  • the first parameter corresponds to a coverage level of the terminal device.
  • the terminal device receives data from the base station according to the TBS.
  • the terminal device transmits data to the base station according to the TBS.
  • the terminal device determines the number of the second physical resource blocks based on the first parameter and the number of the first physical resource blocks, including: the terminal device uses the first parameter and The product of the number of the first physical resource blocks multiplied is determined as the number of the second physical resource blocks.
  • the method before the terminal device receives the first indication information and the second indication information from the base station, the method further includes: the terminal device notifying the base station of the terminal in any one of the following manners Coverage level supported by the device:
  • the terminal device determines that the first parameter set is reported to the base station according to the coverage level, and the first parameter set includes the first parameter.
  • the terminal device receives the second indication information from the base station, where the terminal receives, by the terminal, the second base that is sent by the base station by using a physical downlink control channel PDCCH or an enhanced physical downlink control channel ePDCCH. Instructions.
  • the terminal after the terminal enters the enhanced mode, the terminal performs a query in the PRB and TBS comparison table by using the set number of PRBs, and determines the value of the TBS corresponding to the set number of PRBs.
  • the number of the set PRBs is not related to the number of the first PRBs that the base station actually allocates to the terminal, and the number of the set PRBs may be fixed by the protocol or may be notified by the base station through broadcast, or the base station passes Radio resource control (RRC) signaling of the UE level, wherein the set number of PRBs can be adjusted according to the service condition of the UE.
  • RRC Radio resource control
  • the terminal when the terminal performs data transmission, according to the PRB conversion coefficient sent by the base station and the number of the first PRB, it is determined that the data transmission is used to query the PRB and the transport block size TBS.
  • the number of second PRBs in the table including:
  • the product of multiplying the PRB conversion coefficient and the first PRB number is determined as the number of second PRBs used to query the PRB and TBS comparison table during the data transmission.
  • the method before the terminal receives the first signaling sent by the base station, the method further includes:
  • Notifying the base station by the capability reporting or physical random access channel PRACH or Scheduling Request (SR) or Medium Access Control Element (MAC CE) or other RRC signaling The coverage level supported by the terminal;
  • the terminal Before receiving the conversion factor of the physical resource block PRB sent by the base station, the terminal further includes:
  • the set of the set of conversion coefficients is multiple, and the corresponding set of conversion coefficients is reported to the base station according to the coverage level of the terminal, and the base station selects a conversion coefficient in the set of the reduction coefficients.
  • the number of bits of the instruction delivered through the PDCCH can be saved.
  • the terminal receives the PRB conversion coefficient sent by the base station, including:
  • the terminal receives a PRB conversion coefficient that is sent by the base station by using a physical downlink control channel PDCCH or an enhanced physical downlink control channel (Enhanced PDCCH, ePDCCH).
  • PDCCH physical downlink control channel
  • Enhanced PDCCH enhanced physical downlink control channel
  • a base station includes: a first sending module, configured to send first indication information to a terminal device, where the first indication information includes a first physical resource block, and the physical resource block is used by And the second transmitting module is configured to send the second indication information to the terminal device, where the second indication information carries the first parameter, where the second sending module is configured to carry the data that is transmitted between the base station and the terminal device
  • the first parameter is used by the terminal device to determine a second physical resource block number based on the first parameter and the first physical resource block number, where the second physical resource block number is used to determine a transport block size TBS Wherein the first parameter is less than or equal to 1.
  • the first parameter corresponds to a coverage level of the terminal device.
  • the base station further includes: a processing module, configured to determine, according to the number of the second physical resource blocks Determining a transport block size TBS; the processing module is further configured to send data to the terminal device according to the TBS.
  • the base station further includes: the processing module, configured to determine a transport block size TBS according to the number of the second physical resource blocks; the processing module is further configured to: according to the TBS Receive data from the terminal device.
  • the base station further includes: a determining module, configured to determine a coverage level corresponding to the terminal device, specifically:
  • the coverage level corresponding to the terminal device is determined according to the manner of the measurement, the capability reported by the terminal device, or the signaling reported by the terminal device.
  • the second sending module is specifically configured to send the second indication information to the terminal by using a physical downlink control channel PDCCH or an enhanced physical downlink control channel (ePDCCH).
  • PDCCH physical downlink control channel
  • ePDCCH enhanced physical downlink control channel
  • a fourth aspect is a terminal device, where the terminal device includes:
  • a receiving module configured to receive first indication information and second indication information, where the first indication information includes a first physical resource block, where the physical resource block is used to carry the transmission between the base station and the terminal device Data; the second indication information carries a first parameter;
  • a determining module configured to determine a second physical resource block number based on the first parameter and the first physical resource block number
  • the determining module is further configured to determine a transport block size TBS according to the number of the second physical resource blocks; wherein the first parameter is less than or equal to 1.
  • the first parameter corresponds to a coverage level of the terminal device.
  • the receiving module is further configured to receive data from the base station according to the TBS.
  • the determining module is further configured to send data to the base station according to the TBS.
  • the determining module is specifically configured to: determine, by the product of the first parameter and the first physical resource block, a product number of the second physical resource block.
  • the terminal device further includes: a processing module, configured to notify the base station of the coverage level supported by the terminal device by using any one of the following manners:
  • the receiving module is specifically configured to: receive the second indication information that is sent by the base station by using a physical downlink control channel PDCCH or an enhanced physical downlink control channel ePDCCH.
  • a base station includes a transceiver, and at least one processor coupled to the transceiver, wherein:
  • a processor for reading a program in the memory performing the following process:
  • the base station sends the first indication information to the terminal device, where the first indication information includes a first physical resource block, where the physical resource block is used to carry data transmitted between the base station and the terminal device;
  • the terminal device sends the second indication information, where the second indication information carries the first parameter, where the first parameter is used by the terminal device to determine the second number based on the first parameter and the first physical resource block number. Number of physical resource blocks, the second physical resource block The number is used to determine a transport block size TBS; wherein the first parameter is less than or equal to one.
  • a terminal includes a transceiver, and at least one processor coupled to the transceiver, wherein:
  • the terminal device receives the first indication information and the second indication information, where the first indication information includes a first physical resource block, where the physical resource block is used to carry data transmitted between the base station and the terminal device;
  • the second indication information carries a first parameter; the terminal device determines a second physical resource block number based on the first parameter and the first physical resource block number; the terminal device is configured according to the second physical The number of resource blocks determines a transport block size TBS; wherein the first parameter is less than or equal to one.
  • a base station sends first indication information to a terminal device, where the first indication information includes a first physical resource block, and the physical resource block
  • the base station sends the second indication information to the terminal device, where the second indication information carries the first parameter, and the first parameter is used by the terminal
  • the device determines, according to the first parameter and the number of the first physical resource blocks, the number of the second physical resource blocks, where the number of the second physical resource blocks is used to determine a transport block size TBS, where the first parameter is smaller than Or equal to 1.
  • the TBS value supporting a lower code rate than the MCS 0 is determined without modifying the protocol in a large extent and without changing the terminal hardware, thereby achieving coverage enhancement and improving coverage.
  • FIG. 1 is a flowchart of a resource configuration method for coverage enhancement according to an embodiment of the present application
  • FIG. 2 is a flowchart of a resource configuration method for coverage enhancement according to an embodiment of the present application
  • FIG. 3 is a flowchart of another resource configuration method for coverage enhancement according to an embodiment of the present disclosure.
  • FIG. 4 is a flowchart of a resource configuration method for coverage enhancement according to an embodiment of the present application
  • FIG. 5 is a flowchart of still another resource configuration method for coverage enhancement according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a base station according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a terminal according to an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of hardware of a base station according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a hardware of a terminal according to an embodiment of the present disclosure.
  • the user equipment may include a terminal, or a relay device, or other device that can perform data communication with the base station.
  • the embodiment of the present application provides a resource configuration method for coverage enhancement. As shown in FIG. 1, the method includes the following process:
  • Step 101 The base station sends first indication information to the terminal device, where the first indication information includes the first physical resource. a number of blocks, the physical resource block being used to carry data transmitted between the base station and the terminal device.
  • Step 102 The base station sends second indication information to the terminal device, where the second indication information carries a first parameter, where the first parameter is used by the terminal device based on the first parameter and the first
  • the number of physical resource blocks determines the number of second physical resource blocks, and the number of the second physical resource blocks is used to determine a transport block size TBS; wherein the first parameter is less than or equal to 1.
  • the data is transmitted by using a low code rate, and the coverage is increased.
  • the lower the code rate is, the larger the number of the first physical resource blocks is, and the first parameter is used to lower the code.
  • the table is determined to determine the value of the TBS, and no major changes are required to the protocol, and the terminal hardware does not need to be modified. .
  • the first parameter in the foregoing embodiment of the present application may be selected or determined according to the needs of actual data transmission to implement coverage enhancement.
  • the first parameter may be a PRB conversion coefficient, and the PRB conversion coefficient is described in the following embodiments.
  • the embodiment of the present application further provides a resource configuration method for coverage enhancement. As shown in FIG. 2, the method includes the following process:
  • Step 201 The base station sends the first signaling to the terminal, where the first signaling is used to notify the terminal to enter the coverage enhancement mode.
  • Step 202 The base station sends a physical resource block PRB conversion coefficient to the terminal, and a first PRB number actually allocated to the terminal, where the conversion coefficient of the PRB corresponds to the coverage level of the terminal. And the conversion factor is less than or equal to 1.
  • the base station sends a PRB conversion coefficient to the terminal by using the second signaling; or the base station sends a PRB conversion coefficient to the terminal by using a physical downlink control channel PDCCH or ePDCCH.
  • Step 203 The base station determines, according to the PRB conversion coefficient and the first PRB number, the number of second PRBs used to query the PRB and the transport block size TBS comparison table during the data transmission.
  • Step 204 The base station determines, according to the PRB and the TBS comparison table, a value of the TBS corresponding to the second PRB number.
  • Step 205 The base station performs data transmission according to the value of the TBS.
  • the data transmission includes uplink data demodulation or downlink data transmission.
  • the method further includes: the base station determining, according to the measurement or the capability reported by the terminal or the signaling reported by the terminal, the coverage level corresponding to the terminal;
  • the transmitting, by the terminal, the PRB conversion coefficient includes: the base station transmitting, to the terminal, a PRB conversion coefficient corresponding to the coverage level of the terminal according to the coverage level of the terminal.
  • the embodiment of the present application provides a resource configuration method for coverage enhancement. As shown in FIG. 3, the method includes the following process:
  • Step 301 The terminal device receives the first indication information and the second indication information, where the first indication information includes a first physical resource block, where the physical resource block is used to carry the transmission between the base station and the terminal device. Data; the second indication information carries a first parameter;
  • Step 302 The terminal device determines, according to the first parameter and the first physical resource block, the number of second physical resource blocks;
  • Step 303 The terminal device determines, according to the number of the second physical resource blocks, a transport block size TBS, where the first parameter is less than or equal to 1.
  • the first parameter in the foregoing embodiment of the present application may be selected or determined according to the needs of actual data transmission to implement coverage enhancement.
  • the first parameter may be a PRB conversion factor, and the PRB conversion factor is described in other embodiments of the present invention.
  • An embodiment of the present application provides a resource configuration method for coverage enhancement. As shown in FIG. 4, the method includes the following process:
  • Step 401 When receiving the first signaling sent by the base station, the terminal cuts into the coverage enhancement mode, where the first signaling is used to notify the terminal to enter the coverage enhancement mode.
  • Step 402 The terminal receives a physical resource block PRB conversion coefficient sent by the base station and a first PRB number actually allocated to the terminal, where the conversion coefficient of the PRB corresponds to the coverage level of the terminal. And the conversion factor is less than or equal to 1.
  • the terminal receives the PRB conversion coefficient sent by the base station by using the second signaling; or the terminal receives the PRB conversion coefficient sent by the base station by using the physical downlink control channel PDCCH or ePDCCH.
  • Step 403 When the terminal performs data transmission, determining, according to the PRB conversion coefficient sent by the base station and the number of the first PRB, the second PRB used to query the PRB and the transport block size TBS comparison table during the data transmission. number.
  • the product of multiplying the PRB conversion coefficient and the first PRB number is determined as the number of second PRBs used to query the PRB and TBS comparison table during the data transmission.
  • N' PRB is the number of first PRBs
  • N PRB is the number of second PRBs
  • the formula of the second PRB is as follows:
  • N PRB max ⁇ Floor (N 'PRB ⁇ alpha), 1 ⁇
  • alpha is the conversion factor
  • Step 404 The terminal determines, according to the PRB and the TBS comparison table, a value of the TBS corresponding to the second PRB number.
  • Step 405 The terminal performs the data transmission according to the value of the TBS.
  • the specific data transmission includes uplink data demodulation or downlink data transmission.
  • the data transmission is performed by using a low code rate, and the coverage is increased.
  • the table is determined to determine the value of the TBS, and no major changes are required to the protocol, and the terminal hardware does not need to be modified.
  • the method before the step 101, further includes: the terminal notifying the coverage level supported by the terminal by the base station by using capability reporting or physical random access channel PRACH or SR or MAC CE or other RRC signaling; Before receiving the physical resource block PRB conversion coefficient sent by the base station, the method further includes: the terminal, according to the coverage level of the terminal, selecting the set of the set of conversion coefficients to report to the base station, where the set of conversion coefficients is used for the base station Any one of the conversion coefficient sets is selected and sent to the terminal.
  • the set of the conversion coefficients may be (1/8, 1/4, 1/2, 1), and other values may be used in the set, which are not limited in the embodiment of the present invention.
  • the base station indicates, by using the signaling, that the terminal uses the conversion coefficient alpha when determining the TBS, and the value of the alpha may be identified by two bits in the signaling sent by the base station through the PDCCH, as shown in Table 3 below:
  • the base station may also use the PDCCH newly added field, or the reserved field is used to distinguish whether the PDSCH needs to be converted by using the PRB conversion coefficient.
  • the modulation method is Quadrature Phase Shift Keying (QPSK)
  • QPSK Quadrature Phase Shift Keying
  • the number of bits of the MCS can be changed from 5 bits to 3 bits, and the remaining 2 bits can be used to indicate the conversion coefficient.
  • the value of the conversion coefficient alpha may also be indicated by higher layer signaling, or a fixed value is specified by the protocol, for example: 0.5, or a set of conversion coefficients is configured by signaling, and a certain conversion coefficient is selected in the set by the PDCCH. .
  • Step 501 The terminal reports the coverage capability of the terminal to the base station by using capability reporting.
  • Step 502 The base station receives the report of the terminal.
  • Step 503 The base station determines, according to the capability reported by the terminal, that the terminal enters the coverage enhancement mode.
  • Step 504 The base station sends a first signaling to notify the terminal to enter an coverage enhancement mode.
  • Step 505 The terminal sends a set of conversion coefficients to the base station.
  • Step 506 The base station selects a conversion coefficient that is applicable to the terminal in the set of the conversion coefficients, and sends the second signaling sent by the PDCCH to the terminal, and sends the number of actually occupied PRBs allocated to the terminal. .
  • Step 507 The terminal determines, according to the conversion coefficient and the number of PRBs actually occupied, the converted PRB.
  • Step 508 The terminal determines, according to the converted number of PRBs, the value of the TBS corresponding to the converted number of PRBs in the PRB and TBS comparison table.
  • Step 509 The terminal performs uplink data demodulation according to the value of the TBS.
  • the embodiment of the present application provides a resource configuration method and apparatus for coverage enhancement, which can be used to solve the problem that the support in the prior art cannot be determined to be lower than the MCS 0 without modifying the protocol and without changing the terminal hardware.
  • the method and the device are based on the same inventive concept. Since the principles of the method and the device for solving the problem are similar, the implementation of the device and the method can be referred to each other, and the repeated description is not repeated.
  • the base station includes:
  • the first sending module 601 is configured to send the first indication information to the terminal device, where the first indication information includes a first physical resource block, where the physical resource block is used to carry the base station where the first sending module is located, and Data transmitted between terminal devices.
  • the second sending module 602 is configured to send second indication information to the terminal device, where the second indication information carries a first parameter, where the first parameter is used by the terminal device based on the first parameter and The number of the first physical resource blocks determines the number of the second physical resource blocks, and the number of the second physical resource blocks is used to determine the transport block size TBS; wherein the first parameter is less than or equal to 1.
  • an embodiment of the present invention provides a terminal device. As shown in FIG. 7, the terminal device includes:
  • the receiving module 701 is configured to receive the first indication information and the second indication information, where the first indication information includes a first physical resource block, where the physical resource block is used to carry the base station and the terminal device Transmitted data; the second indication information carries a first parameter;
  • a determining module 702 configured to determine a second physical resource block number based on the first parameter and the first physical resource block number
  • the determining module 702 is further configured to determine a transport block size TBS according to the number of the second physical resource blocks; wherein the first parameter is less than or equal to 1.
  • an embodiment of the present invention provides a base station.
  • the base station includes:
  • the base station includes a transceiver 810 and at least one processor 800 coupled to the transceiver 810, wherein:
  • the processor 800 is configured to read a program in the memory 820 and perform the following process:
  • the base station sends the first indication information to the terminal device, where the first indication information includes a first physical resource block, where the physical resource block is used to carry data transmitted between the base station and the terminal device;
  • the terminal device sends the second indication information, where the second indication information carries the first parameter, where the first parameter is used by the terminal device to determine the second number based on the first parameter and the first physical resource block number. a number of physical resource blocks, the number of the second physical resource blocks being used to determine a transport block size TBS; wherein the first parameter is less than or equal to 1.
  • the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 800 and various circuits of memory represented by memory 820.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 810 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
  • the processor 800 is responsible for managing the bus architecture and general processing, and the memory 820 can store data used by the processor 800 in performing operations.
  • the processor 800 controls the transceiver 810 to perform air interface information interaction between the base station and the terminal.
  • an embodiment of the present invention provides a terminal device.
  • the terminal device includes a transceiver 910, and at least one processor 900 connected to the transceiver 910, where:
  • the processor 900 is configured to read a program in the memory 920 and perform the following process:
  • the terminal device receives the first indication information and the second indication information, where the first indication information includes a first physical resource block, where the physical resource block is used to carry data transmitted between the base station and the terminal device;
  • the second indication information carries a first parameter; the terminal device determines a second physical resource block number based on the first parameter and the first physical resource block number; the terminal device is configured according to the second physical The number of resource blocks determines a transport block size TBS; wherein the first parameter is less than or equal to one.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 900 and various circuits of memory represented by memory 920.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • Bus interface 930 provides an interface.
  • Transceiver 910 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
  • the processor 900 is responsible for managing the bus architecture and the usual processing, and the memory 920 can store the processor. 900 The data used in performing the operation.
  • embodiments of the present application can be provided as a method, system, or computer program product.
  • the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in combination of software and hardware.
  • the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

Abstract

本申请公开了一种用于覆盖增强的资源配置方法及装置，用于解决现有的PRB与TBS对照表无法支持比MCS0更低的码率的问题。包括：基站向终端设备发送第一指示信息，所述第一指示信息包含第一物理资源块个数，所述物理资源块用于承载所述基站和终端设备之间传输的数据；所述基站向所述终端设备发送第二指示信息，所述第二指示信息携带第一参数，所述第一参数用于所述终端设备基于所述第一参数和所述第一物理资源块个数确定第二物理资源块个数，所述第二物理资源块个数用于确定传输块大小TBS。

Description

一种用于覆盖增强的资源配置方法及装置 技术领域
本申请涉及无线通信技术领域，特别涉及一种用于覆盖增强的资源配置方法及装置。
背景技术
随着长期演进(Long Term Evolution，LTE)系统的发展，LTE系统中包含的授权辅助接入-长期演进(Licensed Assisted Access-LTE)系统的应用也大幅普及，尤其是对于独立部署的非授权(unlicense)系统，需要应用在许多需要深度覆盖的场景，例如，工厂、装箱港口以及仓库等场景。深度覆盖可以使覆盖增强，扩大小区覆盖范围，减小基站部署成本，减小企业、工厂自主建站成本。频点资源共享是unlicense频点的一个特点，由于频点共享，因此不同制式，不同系统都可以工作在同一个unlicense频点上，但是为了保证unlicense频点可以高效而公平的使用，频谱法规规定各无线发射单元功率谱不能超过门限值，例如不能超过10dBm/1MHz。发射单元功率谱的限制进一步限制了unlicense频点的信号覆盖范围，因此覆盖增强技术需求很迫切。
现有技术中采用降低码率的技术手段实现覆盖增强，提升覆盖范围。具体的，在LTE系统中定义了不同的调制和编码方式(Modulation and Coding Scheme，MCS)等级和物理资源块(Physical Resource Block，PRB)数目。基站通过控制信道指示终端其使用的MCS等级和PRB数目。终端通过查找MCS的表格得到传输块大小(Transport Block size，TBS)索引(index)，如下表1所示,再通过TBS index和PRB数目查下表2得到传输块大小TBS，现有技术中可以支持的最低码率是MCS 0，对应的码率大致是1/10QPSK。当前LTE系统中主要采用自适应调制编码(Adaptive Moderation and Coding，AMC)技术来实现码率变化的通知。
现有技术无法支持比MCS 0更低的码率，如果需要支持更低的码率，需要修改上述两个表格，对协议改动会比较大，而且当前终端仅支持目前3GPP协议已经支持的TBS值，新增加TBS值会导致终端硬件需要改动。
综上所述，如何在不大范围修改协议以及不改动终端硬件的情况下确定出支持比MCS 0更低的码率的TBS值，是目前需要解决的问题。
表1
Figure PCTCN2017072656-appb-000001
表2
Figure PCTCN2017072656-appb-000002
发明内容
本申请实施例提供了一种用于覆盖增强的资源配置方法及装置，在不大范围修改协议以及不改动终端硬件的情况下确定出支持比MCS 0更低的码率的TBS值。
第一方面，一种用于覆盖增强的资源配置方法，该方法包括：基站向终端设备发送第一指示信息，所述第一指示信息包含第一物理资源块个数，所述物理资源块用于承载所述基站和终端设备之间传输的数据；所述基站向所述终端设备发送第二指示信息，所述第二指示信息携带第一参数，所述第一参数用于所述终端设备基于所述第一参数和所述第一物理资源块个数确定第二物理资源块个数，所述第二物理资源块个数用于确定传输块大小TBS；其中所述第一参数小于或等于1。
本发明实施例中，对所述第一指示消息和所述第二指示消息的发送顺序不做限定，
在一种可能的设计中，基站向终端发送第一信令，所述第一信令用于通知所述终端进入覆盖增强模式；所述基站向所述终端发送物理资源块PRB折算系数和分配给所述终端实际占用的第一PRB数目，其中，所述PRB的折算系数与所述终端所处的覆盖等级相对应，且所述折算系数小于或者等于1；所述基站根据PRB折算系数和所述第一PRB数目，确定出所述数据传输时用于查询PRB与传输块大小TBS对照表的第二PRB数目；所述基站根据所述PRB与TBS对照表确定出所述第二PRB数目对应的TBS的值；所述基站根据所述TBS的值进行数据传输。
本申请实施例中，终端进入覆盖增强模式后，采用低码率进行数据传输，增大了覆盖范围，码率越低对应的第一PRB数目越大，采用PRB折算系数将低码率时对应的实际占用的第一PRB数目折算为PRB与TBS对照表中的PRB数目后，进行查表确定TBS的值，该方法对协议改动不大，终端也不需要硬件改动。
在一种可能的设计中，所述第一参数与所述终端设备的覆盖等级相对应。
在一种可能的设计中，所述基站向所述终端设备发送第二指示信息之后，该方法还包括：所述基站根据所述第二物理资源块个数确定传输块大小TBS；所述基站根据所述TBS向终端设备发送数据。
在一种可能的设计中，所述基站向所述终端设备发送第二指示信息之后，该方法还包括：所述基站根据所述第二物理资源块个数确定传输块大小TBS；所述基站根据所述TBS从终端设备接收数据。
在一种可能的设计中，所述基站向终端设备发送第一指示信息之前，该方法还包括：所述基站确定所述终端设备对应的覆盖等级，具体包括：
所述基站通过测量的方式、根据所述终端设备上报的能力或者根据所述终端设备上报的信令，确定出所述终端设备对应的覆盖等级。
在一种可能的设计中，所述基站向所述终端设备发送第二指示信息，包括：
所述基站通过物理下行控制信道PDCCH或者增强的物理下行控制信道ePDCCH向所述终端发送所述第二指示信息。
在一种可能的设计中，所述基站向终端发送第一信令之前，该方法还包括：
所述基站根据测量或者通过所述终端上报的能力或者所述终端上报的信令确定出所述终端对应的覆盖等级；其中，所述终端上报的信令包括但不限于SR消息、MAC CE消息、RRC消息以及PRACH通知。
所述基站向所述终端发送PRB折算系数，包括：
所述基站根据所述终端的覆盖等级，向所述终端发送与所述终端的覆盖等级对应的PRB折算系数。
在一种可能的设计中，所述基站向所述终端发送PRB折算系数，包括：
所述基站通过第二信令向所述终端发送PRB折算系数；或者，
所述基站通过物理下行控制信道PDCCH或者ePDCCH向所述终端发送PRB折算系数。
在一种可能的设计中，所述基站根据所述TBS的值进行数据传输，包括:
所述基站根据所述TBS的值进行上行数据解调或者下行数据发送。
第二方面，一种用于覆盖增强的资源配置方法，该方法包括：终端设备从基站接收第一指示信息和第二指示信息，所述第一指示信息包含第一物理资源块个数，所述物理资源块用于承载所述基站和终端设备之间传输的数据；所述第二指示信息携带第一参数；所述终端设备基于所述第一参数和所述第一物理资源块个数确定第二物理资源块个数；所述终端设备根据所述第二物理资源块个数确定传输块大小TBS；其中所述第一参数小于或等于1。
在一种可能的设计中，终端接收到基站发送的第一信令时，切入到覆盖增强模式，所述第一信令用于通知所述终端进入覆盖增强模式；所述终端接收到基站发送的物理资源块PRB折算系数和分配给所述终端实际占用的第一PRB数目，其中，所述PRB的折算系数与所述终端所处的覆盖等级相对应，且所述折算系数小于或者等于1；所述终端进行数据传输时，根据所述基站发送的PRB折算系数和所述第一PRB数目，确定出所述数据传输时用于查询PRB与传输块大小TBS对照表的第二PRB数目；所述终端根据所述PRB与TBS对照表确定出所述第二PRB数目对应的TBS的值；所述终端根据所述TBS的值进行所述数据传输，其中，所述数据传输包括上行数据解调或者下行数据发送。
本申请实施例中，终端进入覆盖增强模式后，采用低码率进行数据传输，增大了覆盖范围，码率越低对应的第一PRB数目越大，采用PRB折算系数将低码率时对应的实际占用的第一PRB数目折算为PRB与TBS对照表中的PRB数目后，进行查表确定TBS的值，该方法对协议改动不大，终端也不需要硬件改动。
在一种可能的设计中，所述第一参数与所述终端设备的覆盖等级相对应。
在一种可能的设计中，所述终端设备根据所述TBS从所述基站接收数据。
在一种可能的设计中，所述终端设备根据所述TBS向所述基站发送数据。
在一种可能的设计中，所述终端设备基于所述第一参数和所述第一物理资源块个数确定第二物理资源块个数，包括：所述终端设备将所述第一参数和所述第一物理资源块个数相乘的积，确定为所述第二物理资源块个数。
在一种可能的设计中，终端设备从基站接收第一指示信息和第二指示信息之前，该方法还包括：所述终端设备通过以下方式中的任一种方式向所述基站通知所述终端设备支持的覆盖等级：
通过能力上报；
通过物理随机接入信道PRACH；
通过调度请求SR；
通过媒体接入层控制单元MAC CE；和
通过其它无线资源控制RRC信令；
以及，
所述终端设备根据所述覆盖等级，确定第一参数集合上报给所述基站，所述第一参数集合中包含所述第一参数。
在一种可能的设计中，所述终端设备从基站接收第二指示信息，包括：所述终端接收到所述基站通过物理下行控制信道PDCCH或者增强的物理下行控制信道ePDCCH发送的所述第二指示信息。
在一种可能的设计中，所述终端进入增强模式后，均使用设定的PRB数目在所述PRB与TBS对照表中进行查询，确定出所述设定的PRB数目对应的TBS的值。
本申请实施例中，所述设定的PRB数目与基站分配给所述终端实际占用的第一PRB数目无关，所述设定的PRB数目可以通过协议固定也可以基站通过广播通知，或者基站通过UE级别的无线资源控制(Radio Resource Control，RRC)信令发送，其中，所述设定的PRB数目可以根据UE的业务情况进行调整。
在一种可能的设计中，所述终端进行数据传输时，根据所述基站发送的PRB折算系数和所述第一PRB数目，确定出所述数据传输时用于查询PRB与传输块大小TBS对照表的第二PRB数目，包括：
所述终端进行数据传输时，将所述PRB折算系数和所述第一PRB数目相乘的积，确定为所述数据传输时用于查询PRB与TBS对照表的第二PRB数目。
在一种可能的设计中，终端接收到基站发送的第一信令之前，该方法还包括：
所述终端通过能力上报或者物理随机接入信道PRACH或者调度请求(Scheduling Request，SR)或者媒体接入层控制单元(Medium Access Control Control Element，MAC CE)或者其它RRC信令通知所述基站所述终端支持的覆盖等级；
所述终端接收到基站发送的物理资源块PRB折算系数之前，还包括：
所述终端根据所述终端的覆盖等级，选择设定的折算系数集合上报给所述基站，所述折算系数集合用于所述基站在所述折算系数集合中选择任一折算系数发送给所述终端。
本申请实施例中，所述设定的折算系数集合为多个，根据所述终端的覆盖等级将相应的折算系数集合上报给所述基站，所述基站在所述折算系数集合中选择折算系数，可以节约通过PDCCH下发的指令的比特数。
在一种可能的设计中，所述终端接收到基站发送的PRB折算系数，包括：
所述终端接收到所述基站通过第二信令发送的PRB折算系数；或者，
所述终端接收到所述基站通过物理下行控制信道PDCCH或者增强的物理下行控制信道(Enhanced PDCCH，ePDCCH)发送的PRB折算系数。
第三方面，一种基站，该基站包括：第一发送模块，用于向终端设备发送第一指示信息，所述第一指示信息包含第一物理资源块个数，所述物理资源块用于承载所述第一发送模块所在的基站和终端设备之间传输的数据；第二发送模块，用于向所述终端设备发送第二指示信息，所述第二指示信息携带第一参数，所述第一参数用于所述终端设备基于所述第一参数和所述第一物理资源块个数确定第二物理资源块个数，所述第二物理资源块个数用于确定传输块大小TBS；其中所述第一参数小于或等于1。
在一种可能的设计中，所述第一参数与所述终端设备的覆盖等级相对应。
在一种可能的设计中，该基站还包括：处理模块，用于根据所述第二物理资源块个数 确定传输块大小TBS；所述处理模块还用于，根据所述TBS向终端设备发送数据。
在一种可能的设计中，所述基站还包括：所述处理模块，还用于根据所述第二物理资源块个数确定传输块大小TBS；所述处理模块还用于，根据所述TBS从终端设备接收数据。
在一种可能的设计中，所述基站还包括：确定模块，用于确定所述终端设备对应的覆盖等级，具体包括：
通过测量的方式、根据所述终端设备上报的能力或者根据所述终端设备上报的信令，确定出所述终端设备对应的覆盖等级。
在一种可能的设计中，所述第二发送模块具体用于：通过物理下行控制信道PDCCH或者增强的物理下行控制信道ePDCCH向所述终端发送所述第二指示信息。
第四方面，一种终端设备，该终端设备包括：
接收模块，用于从基站接收第一指示信息和第二指示信息，所述第一指示信息包含第一物理资源块个数，所述物理资源块用于承载所述基站和终端设备之间传输的数据；所述第二指示信息携带第一参数；
确定模块，用于基于所述第一参数和所述第一物理资源块个数确定第二物理资源块个数；
所述确定模块还用于，根据所述第二物理资源块个数确定传输块大小TBS；其中所述第一参数小于或等于1。
在一种可能的设计中，所述第一参数与所述终端设备的覆盖等级相对应。
在一种可能的设计中，所述接收模块还用于，根据所述TBS从所述基站接收数据。
在一种可能的设计中，所述确定模块还用于，根据所述TBS向所述基站发送数据。
在一种可能的设计中，所确定模块具体用于：将所述第一参数和所述第一物理资源块个数相乘的积，确定为所述第二物理资源块个数。
在一种可能的设计中，所述终端设备还包括：处理模块，用于通过以下方式中的任一种方式向所述基站通知所述终端设备支持的覆盖等级：
通过能力上报；
通过物理随机接入信道PRACH；
通过调度请求SR；
通过媒体接入层控制单元MAC CE；和
通过其它无线资源控制RRC信令；
以及，
根据所述覆盖等级，确定第一参数集合上报给所述基站，所述第一参数集合中包含所述第一参数。
在一种可能的设计中，所述接收模块具体用于：接收到所述基站通过物理下行控制信道PDCCH或者增强的物理下行控制信道ePDCCH发送的所述第二指示信息。
第五方面，基站包括收发机、以及与该收发机连接的至少一个处理器，其中：
处理器，用于读取存储器中的程序，执行下列过程：
基站向终端设备发送第一指示信息，所述第一指示信息包含第一物理资源块个数，所述物理资源块用于承载所述基站和终端设备之间传输的数据；所述基站向所述终端设备发送第二指示信息，所述第二指示信息携带第一参数，所述第一参数用于所述终端设备基于所述第一参数和所述第一物理资源块个数确定第二物理资源块个数，所述第二物理资源块 个数用于确定传输块大小TBS；其中所述第一参数小于或等于1。
第六方面，终端包括收发机、以及与该收发机连接的至少一个处理器，其中：
终端设备从基站接收第一指示信息和第二指示信息，所述第一指示信息包含第一物理资源块个数，所述物理资源块用于承载所述基站和终端设备之间传输的数据；所述第二指示信息携带第一参数；所述终端设备基于所述第一参数和所述第一物理资源块个数确定第二物理资源块个数；所述终端设备根据所述第二物理资源块个数确定传输块大小TBS；其中所述第一参数小于或等于1。
本申请实施例中提出了一种用于覆盖增强的资源配置方法及装置，基站向终端设备发送第一指示信息，所述第一指示信息包含第一物理资源块个数，所述物理资源块用于承载所述基站和终端设备之间传输的数据；所述基站向所述终端设备发送第二指示信息，所述第二指示信息携带第一参数，所述第一参数用于所述终端设备基于所述第一参数和所述第一物理资源块个数确定第二物理资源块个数，所述第二物理资源块个数用于确定传输块大小TBS；其中所述第一参数小于或等于1。在不大范围修改协议以及不改动终端硬件的情况下确定出支持比MCS 0更低的码率的TBS值，实现了覆盖增强，提升了覆盖范围。
附图说明
图1为本申请实施例提供的一种用于覆盖增强的资源配置方法流程图；
图2为本申请实施例提供的一种用于覆盖增强的资源配置方法流程图；
图3为本申请实施例提供的另一种用于覆盖增强的资源配置方法流程图；
图4为本申请实施例提供的一种用于覆盖增强的资源配置方法流程图；
图5为本申请实施例提供的再一种用于覆盖增强的资源配置方法流程图；
图6为本申请实施例提供的一种基站的示意图；
图7为本申请实施例提供的一种终端的示意图；
图8为本申请实施例提供的一种基站的硬件结构示意图；
图9为本申请实施例提供的一种终端的硬件结构示意图。
具体实施方式
下面将结合附图对本申请实施例作进一步地详细描述。
需要理解的是，在本申请的描述中，“第一”、“第二”等词汇，仅用于区分描述的目的，而不能理解为指示或暗示相对重要性，也不能理解为指示或暗示顺序。
在无线通信系统中，尤其是部署LAA-LTE与非授权系统的场景中，需要通过降低码率的方式实现深度覆盖，增大覆盖范围，MCS等级与PRB数目成反比，需要的MCS越小，PRB的数目越大，而PRB与TBS的对照表中，PRB与TBS的值都是固定的，为了不改变协议中PRB与TBS的对照表或者终端的结构，需要一种方法在PRB数目为PRB与TBS的对照表中不存在的数值时，可以确定出TBS的值。本发明实施例中，用户设备可以包括终端、或者中继设备，或者其它可以与基站进行数据通信的设备。
本申请实施例提供了一种用于覆盖增强的资源配置方法，如图1所示，该方法包括以下过程：
步骤101、基站向终端设备发送第一指示信息，所述第一指示信息包含第一物理资源 块个数，所述物理资源块用于承载所述基站和终端设备之间传输的数据。
步骤102、所述基站向所述终端设备发送第二指示信息，所述第二指示信息携带第一参数，所述第一参数用于所述终端设备基于所述第一参数和所述第一物理资源块个数确定第二物理资源块个数，所述第二物理资源块个数用于确定传输块大小TBS；其中所述第一参数小于或等于1。
本申请实施例中，终端进入覆盖增强模式后，采用低码率进行数据传输，增大了覆盖范围，码率越低对应的第一物理资源块个数越大，采用第一参数将低码率时对应的实际占用的第一物理资源块个数折算为第二物理资源块个数后，进行查表确定TBS的值，不需要对协议进行大的改动，且终端硬件也不需要进行修改。
需要说明的是，本申请上述实施例中的第一参数可以根据实际数据传输的需要进行选择或确定，以实现覆盖增强。例如，所述第一参数可以为PRB折算系数，关于所述PRB折算系数参见下述实施例的阐述。
本申请实施例还提供了一种用于覆盖增强的资源配置方法，如图2所示，该方法包括以下过程：
步骤201、基站向终端发送第一信令，所述第一信令用于通知所述终端进入覆盖增强模式。
步骤202、所述基站向所述终端发送物理资源块PRB折算系数和分配给所述终端实际占用的第一PRB数目，其中，所述PRB的折算系数与所述终端所处的覆盖等级相对应，且所述折算系数小于或者等于1。
具体的，所述基站通过第二信令向所述终端发送PRB折算系数；或者，所述基站通过物理下行控制信道PDCCH或者ePDCCH向所述终端发送PRB折算系数。
步骤203、所述基站根据PRB折算系数和所述第一PRB数目，确定出所述数据传输时用于查询PRB与传输块大小TBS对照表的第二PRB数目。
步骤204、所述基站根据所述PRB与TBS对照表确定出所述第二PRB数目对应的TBS的值。
步骤205、所述基站根据所述TBS的值进行数据传输。
具体的，所述数据传输包括上行数据解调或者下行数据发送。
本发明实施中，步骤201之前，还包括：还包括：所述基站根据测量或者通过终端上报的能力或者所述终端上报的信令确定出所述终端对应的覆盖等级；所述基站向所述终端发送PRB折算系数，包括：所述基站根据所述终端的覆盖等级，向所述终端发送与所述终端的覆盖等级对应的PRB折算系数。
本申请实施例提供了一种用于覆盖增强的资源配置方法，如图3所示，该方法包括以下过程：
步骤301、终端设备从基站接收第一指示信息和第二指示信息，所述第一指示信息包含第一物理资源块个数，所述物理资源块用于承载所述基站和终端设备之间传输的数据；所述第二指示信息携带第一参数；
步骤302、所述终端设备基于所述第一参数和所述第一物理资源块个数确定第二物理资源块个数；
步骤303、所述终端设备根据所述第二物理资源块个数确定传输块大小TBS；其中所述第一参数小于或等于1。
需要说明的是，本申请上述实施例中的第一参数可以根据实际数据传输的需要进行选择或确定，以实现覆盖增强。例如，所述第一参数可以为PRB折算系数，关于所述PRB折算系数参见本发明其它实施例的阐述。
本申请实施例提供了一种用于覆盖增强的资源配置方法，如图4所示，该方法包括以下过程：
步骤401、终端接收到基站发送的第一信令时，切入到覆盖增强模式，所述第一信令用于通知所述终端进入覆盖增强模式。
步骤402、所述终端接收到基站发送的物理资源块PRB折算系数和分配给所述终端实际占用的第一PRB数目，其中，所述PRB的折算系数与所述终端所处的覆盖等级相对应，且所述折算系数小于或者等于1。
具体的，所述终端接收到所述基站通过第二信令发送的PRB折算系数；或者，所述终端接收到所述基站通过物理下行控制信道PDCCH或者ePDCCH发送的PRB折算系数。
步骤403、所述终端进行数据传输时，根据所述基站发送的PRB折算系数和所述第一PRB数目，确定出所述数据传输时用于查询PRB与传输块大小TBS对照表的第二PRB数目。
具体的，所述终端进行数据传输时，将所述PRB折算系数和所述第一PRB数目相乘的积，确定为所述数据传输时用于查询PRB与TBS对照表的第二PRB数目。
举例说明：假设N′PRB为第一PRB数目，NPRB为第二PRB数目，第二PRB的计算公式下：
NPRB＝max{Floor(N′PRB×alpha),1}
其中，alpha为折算系数。
步骤404、所述终端根据所述PRB与TBS对照表确定出所述第二PRB数目对应的TBS的值。
步骤405、所述终端根据所述TBS的值进行所述数据传输。
具体的所述数据传输包括上行数据解调或者下行数据发送。
本申请实施例中，终端进入覆盖增强模式后，采用低码率进行数据传输，增大了覆盖范围，码率越低对应的第一PRB数目越大，采用PRB折算系数将低码率时对应的实际占用的第一PRB数目折算为PRB与TBS对照表中的PRB数目后，进行查表确定TBS的值，不需要对协议进行大的改动，且终端硬件也不需要进行修改。
本发明实施中，步骤101之前，还包括：所述终端通过能力上报或者物理随机接入信道PRACH或者SR或者MAC CE或者其它RRC信令通知所述基站所述终端支持的覆盖等级；所述终端接收到基站发送的物理资源块PRB折算系数之前，还包括：所述终端根据所述终端的覆盖等级，选择设定的折算系数集合上报给所述基站，所述折算系数集合用于所述基站在所述折算系数集合中选择任一折算系数发送给所述终端。
举例说明：例如，所述折算系数集合可以为(1/8，1/4，1/2,1)，集合中也可以为其它数值，本发明实施例对其不做限定。基站通过信令指示终端在确定TBS时使用折算系数alpha，所述alpha的值可以通过基站通过PDCCH下发的信令中的两个比特(bit)标识，如下表3所示：
表3
Bit信息 alpha值
00 1
01 1/2
10 1/4
11 1/8
可选的，基站也可以使用PDCCH新增加字段，或者保留字段用于区分PDSCH是否需要使用PRB折算系数进行折算。假设，覆盖增强的情况下调制方式是四相相移键控(Quadrature Phase Shift Keying，QPSK)时，可以将MCS的bit数目由5bits变为3bits，剩下的2bits可以用于指示折算系数。或者，折算系数alpha的值也可以通过高层信令指示，或者通过协议规定一个固定的值，例如：0.5，或者，通过信令配置一个折算系数集合，通过PDCCH在该集合中选择某一个折算系数。
下面通过一个具体实施例，对其中一种用于覆盖增强的资源配置方法进行详细的阐述，如图5所示，过程如下：
步骤501、终端通过能力上报将自身的覆盖能力情况上报给基站。
步骤502、所述基站接收到所述终端的上报。
步骤503、所述基站根据所述终端上报的能力判断终端进入覆盖增强模式。
步骤504、所述基站发送第一信令通知所述终端进入覆盖增强模式。
步骤505、所述终端发送折算系数集合给所述基站。
步骤506、所述基站在所述折算系数集合中选择适用于所述终端的折算系数，通过PDCCH发送的第二信令发送给所述终端，并发送分配给所述终端的实际占用的PRB数目。
步骤507、所述终端根据所述折算系数与所述实际占用的PRB数目，确定出折算后的PRB。
步骤508、所述终端根据所述折算后的PRB数目，在PRB与TBS对照表中，确定出所述折算后的PRB数目对应的TBS的值。
步骤509、所述终端根据所述TBS的值进行上行数据解调。
本申请实施例提供一种用于覆盖增强的资源配置方法及装置，用以解决现有技术中存在的在不修改协议以及不改动终端硬件的情况下无法确定出支持比MCS 0更低的码率的TBS值的问题。其中，方法和装置是基于同一发明构思的，由于方法及装置解决问题的原理相似，因此装置与方法的实施可以相互参见，重复之处不再赘述。
基于同一发明构思，本发明实施例提供了一种终端，如图6所示，该基站包括：
第一发送模块601，用于向终端设备发送第一指示信息，所述第一指示信息包含第一物理资源块个数，所述物理资源块用于承载所述第一发送模块所在的基站和终端设备之间传输的数据.
第二发送模块602，用于向所述终端设备发送第二指示信息，所述第二指示信息携带第一参数，所述第一参数用于所述终端设备基于所述第一参数和所述第一物理资源块个数确定第二物理资源块个数，所述第二物理资源块个数用于确定传输块大小TBS；其中所述第一参数小于或等于1。
基于同一发明构思，本发明实施例提供了一种终端设备，如图7所示，该终端设备包括：
接收模块701，用于从基站接收第一指示信息和第二指示信息，所述第一指示信息包含第一物理资源块个数，所述物理资源块用于承载所述基站和终端设备之间传输的数据；所述第二指示信息携带第一参数；
确定模块702，用于基于所述第一参数和所述第一物理资源块个数确定第二物理资源块个数；
所述确定模块702还用于，根据所述第二物理资源块个数确定传输块大小TBS；其中所述第一参数小于或等于1。
基于同一发明构思，本发明实施例提供了一种基站，如图8所示，该基站包括：
在图8的实施例中，基站包括收发机810、以及与该收发机810连接的至少一个处理器800，其中：
处理器800，用于读取存储器820中的程序，执行下列过程：
基站向终端设备发送第一指示信息，所述第一指示信息包含第一物理资源块个数，所述物理资源块用于承载所述基站和终端设备之间传输的数据；所述基站向所述终端设备发送第二指示信息，所述第二指示信息携带第一参数，所述第一参数用于所述终端设备基于所述第一参数和所述第一物理资源块个数确定第二物理资源块个数，所述第二物理资源块个数用于确定传输块大小TBS；其中所述第一参数小于或等于1。
其中，在图8中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器800代表的一个或多个处理器和存储器820代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机810可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。处理器800负责管理总线架构和通常的处理，存储器820可以存储处理器800在执行操作时所使用的数据。
可以理解，处理器800控制收发机810进行基站与终端的空口信息交互。
基于同一发明构思，本发明实施例提供了一种终端设备，在图9的实施例中，终端设备包括收发机910、以及与该收发机910连接的至少一个处理器900，其中：
处理器900，用于读取存储器920中的程序，执行下列过程：
终端设备从基站接收第一指示信息和第二指示信息，所述第一指示信息包含第一物理资源块个数，所述物理资源块用于承载所述基站和终端设备之间传输的数据；所述第二指示信息携带第一参数；所述终端设备基于所述第一参数和所述第一物理资源块个数确定第二物理资源块个数；所述终端设备根据所述第二物理资源块个数确定传输块大小TBS；其中所述第一参数小于或等于1。
其中，在图9中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器900代表的一个或多个处理器和存储器920代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口930提供接口。收发机910可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。处理器900负责管理总线架构和通常的处理，存储器920可以存储处理器 900在执行操作时所使用的数据。
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本申请实施例进行各种改动和变型而不脱离本申请实施例的精神和范围。这样，倘若本申请实施例的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (26)

  1. 一种用于覆盖增强的资源配置方法，其特征在于，该方法包括：
    基站向终端设备发送第一指示信息，所述第一指示信息包含第一物理资源块个数，所述物理资源块用于承载所述基站和终端设备之间传输的数据；
    所述基站向所述终端设备发送第二指示信息，所述第二指示信息携带第一参数，所述第一参数用于所述终端设备基于所述第一参数和所述第一物理资源块个数确定第二物理资源块个数，所述第二物理资源块个数用于确定传输块大小TBS；
    其中所述第一参数小于或等于1。
  2. 如权利要求1所述的方法，其特征在于，所述第一参数与所述终端设备的覆盖等级相对应。
  3. 如权利要求1所述的方法，其特征在于，所述基站向所述终端设备发送第二指示信息之后，该方法还包括：
    所述基站根据所述第二物理资源块个数确定传输块大小TBS；
    所述基站根据所述TBS向终端设备发送数据。
  4. 如权利要求1所述的方法，其特征在于，所述基站向所述终端设备发送第二指示信息之后，该方法还包括：
    所述基站根据所述第二物理资源块个数确定传输块大小TBS；
    所述基站根据所述TBS从终端设备接收数据。
  5. 如权利要求1所述的方法，其特征在于，所述基站向终端设备发送第一指示信息之前，该方法还包括：
    所述基站确定所述终端设备对应的覆盖等级，具体包括：
    所述基站通过测量的方式、根据所述终端设备上报的能力或者根据所述终端设备上报的信令，确定出所述终端设备对应的覆盖等级。
  6. 如权利要求1所述的方法，其特征在于，所述基站向所述终端设备发送第二指示信息，包括：
    所述基站通过物理下行控制信道PDCCH或者增强的物理下行控制信道ePDCCH向所述终端发送所述第二指示信息。
  7. 一种用于覆盖增强的资源配置方法，其特征在于，该方法包括：
    终端设备从基站接收第一指示信息和第二指示信息，所述第一指示信息包含第一物理资源块个数，所述物理资源块用于承载所述基站和终端设备之间传输的数据；所述第二指示信息携带第一参数；
    所述终端设备基于所述第一参数和所述第一物理资源块个数确定第二物理资源块个数；
    所述终端设备根据所述第二物理资源块个数确定传输块大小TBS；
    其中所述第一参数小于或等于1。
  8. 如权利要求7所述的方法，其特征在于，所述第一参数与所述终端设备的覆盖等级相对应。
  9. 如权利要求7所述的方法，其特征在于，所述终端设备根据所述TBS从所述基站接收数据。
  10. 如权利要求7所述的方法，其特征在于，所述终端设备根据所述TBS向所述基站发送数据。
  11. 如权利要求7所述的方法，其特征在于，所述终端设备基于所述第一参数和所述第一物理资源块个数确定第二物理资源块个数，包括：
    所述终端设备将所述第一参数和所述第一物理资源块个数相乘的积，确定为所述第二物理资源块个数。
  12. 如权利要求7所述的方法，其特征在于，终端设备从基站接收第一指示信息和第二指示信息之前，该方法还包括：
    所述终端设备通过以下方式中的任一种方式向所述基站通知所述终端设备支持的覆盖等级：
    通过能力上报；
    通过物理随机接入信道PRACH；
    通过调度请求SR；
    通过媒体接入层控制单元MAC CE；和
    通过其它无线资源控制RRC信令；
    以及，
    所述终端设备根据所述覆盖等级，确定第一参数集合上报给所述基站，所述第一参数集合中包含所述第一参数。
  13. 如权利要求7所述的方法，其特征在于，所述终端设备从基站接收第二指示信息，包括：
    所述终端接收到所述基站通过物理下行控制信道PDCCH或者增强的物理下行控制信道ePDCCH发送的所述第二指示信息。
  14. 一种基站，其特征在于，该基站包括：
    第一发送模块，用于向终端设备发送第一指示信息，所述第一指示信息包含第一物理资源块个数，所述物理资源块用于承载所述第一发送模块所在的基站和终端设备之间传输的数据；
    第二发送模块，用于向所述终端设备发送第二指示信息，所述第二指示信息携带第一参数，所述第一参数用于所述终端设备基于所述第一参数和所述第一物理资源块个数确定第二物理资源块个数，所述第二物理资源块个数用于确定传输块大小TBS；
    其中所述第一参数小于或等于1。
  15. 如权利要求14所述的基站，其特征在于，所述第一参数与所述终端设备的覆盖等级相对应。
  16. 如权利要求14所述的基站，其特征在于，该基站还包括：
    处理模块，用于根据所述第二物理资源块个数确定传输块大小TBS；
    所述处理模块还用于，根据所述TBS向终端设备发送数据。
  17. 如权利要求14所述的基站，其特征在于，所述基站还包括：
    所述处理模块，还用于根据所述第二物理资源块个数确定传输块大小TBS；
    所述处理模块还用于，根据所述TBS从终端设备接收数据。
  18. 如权利要求14所述的基站，其特征在于，所述基站还包括：
    确定模块，用于确定所述终端设备对应的覆盖等级，具体包括：
    通过测量的方式、根据所述终端设备上报的能力或者根据所述终端设备上报的信令，确定出所述终端设备对应的覆盖等级。
  19. 如权利要求14所述的基站，其特征在于，所述第二发送模块具体用于：
    通过物理下行控制信道PDCCH或者增强的物理下行控制信道ePDCCH向所述终端发送所述第二指示信息。
  20. 一种终端设备，其特征在于，该终端设备包括：
    接收模块，用于从基站接收第一指示信息和第二指示信息，所述第一指示信息包含第一物理资源块个数，所述物理资源块用于承载所述基站和终端设备之间传输的数据；所述第二指示信息携带第一参数；
    确定模块，用于基于所述第一参数和所述第一物理资源块个数确定第二物理资源块个数；
    所述确定模块还用于，根据所述第二物理资源块个数确定传输块大小TBS；其中所述第一参数小于或等于1。
  21. 如权利要求20所述的终端设备，其特征在于，所述第一参数与所述终端设备的覆盖等级相对应。
  22. 如权利要求20所述的终端设备，其特征在于，所述接收模块还用于，根据所述TBS从所述基站接收数据。
  23. 如权利要求20所述的终端设备，其特征在于，所述确定模块还用于，根据所述TBS向所述基站发送数据。
  24. 如权利要求20所述的终端设备，其特征在于，所确定模块具体用于：
    将所述第一参数和所述第一物理资源块个数相乘的积，确定为所述第二物理资源块个数。
  25. 如权利要求20所述的终端设备，其特征在于，所述终端设备还包括：
    处理模块，用于通过以下方式中的任一种方式向所述基站通知所述终端设备支持的覆盖等级：
    通过能力上报；
    通过物理随机接入信道PRACH；
    通过调度请求SR；
    通过媒体接入层控制单元MAC CE；和
    通过其它无线资源控制RRC信令；
    以及，
    根据所述覆盖等级，确定第一参数集合上报给所述基站，所述第一参数集合中包含所述第一参数。
  26. 如权利要求20所述的终端设备，其特征在于，所述接收模块具体用于：
    接收到所述基站通过物理下行控制信道PDCCH或者增强的物理下行控制信道ePDCCH发送的所述第二指示信息。
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