WO2018223352A1 - 传输数据的方法、终端设备和网络设备 - Google Patents

传输数据的方法、终端设备和网络设备 Download PDF

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Publication number
WO2018223352A1
WO2018223352A1 PCT/CN2017/087630 CN2017087630W WO2018223352A1 WO 2018223352 A1 WO2018223352 A1 WO 2018223352A1 CN 2017087630 W CN2017087630 W CN 2017087630W WO 2018223352 A1 WO2018223352 A1 WO 2018223352A1
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WIPO (PCT)
Prior art keywords
transmission bandwidth
terminal device
rbg
network device
transmission
Prior art date
Application number
PCT/CN2017/087630
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English (en)
French (fr)
Inventor
唐海
Original Assignee
Oppo广东移动通信有限公司
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
Priority to AU2017417277A priority Critical patent/AU2017417277A1/en
Priority to MX2019014735A priority patent/MX2019014735A/es
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to RU2019143100A priority patent/RU2734106C1/ru
Priority to PCT/CN2017/087630 priority patent/WO2018223352A1/zh
Priority to JP2019567322A priority patent/JP7035092B2/ja
Priority to CA3066293A priority patent/CA3066293C/en
Priority to KR1020197036135A priority patent/KR102399192B1/ko
Priority to US16/618,796 priority patent/US11277234B2/en
Priority to CN201911330503.4A priority patent/CN111148248B/zh
Priority to CN201780090549.6A priority patent/CN110612762A/zh
Priority to SG11201911691UA priority patent/SG11201911691UA/en
Priority to BR112019025750-0A priority patent/BR112019025750A2/pt
Priority to EP21174285.3A priority patent/EP3890421B1/en
Priority to EP17912699.0A priority patent/EP3624520B1/en
Publication of WO2018223352A1 publication Critical patent/WO2018223352A1/zh
Priority to IL271082A priority patent/IL271082A/en
Priority to PH12019502757A priority patent/PH12019502757A1/en
Priority to ZA2020/00044A priority patent/ZA202000044B/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • 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
    • H04L5/0046—Determination of how many bits are transmitted on different sub-channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1614—Details of the supervisory signal using bitmaps
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • 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
    • 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
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02—Data link layer protocols

Definitions

  • the embodiments of the present application relate to the field of wireless communications, and, more particularly, to a method, a terminal device, and a network device for transmitting data.
  • frequency domain resources occupied by data transmission are allocated in units of Resource Block Groups (RBGs), and each RBG includes a set of consecutive resource blocks ( Resource Block, RB), RBG Size is related to system bandwidth.
  • RBG size in different system bandwidths is different, so the number of RBGs in different system bandwidths is also different.
  • the network device may indicate the RBG used by the terminal device to the terminal device through a bitmap that is carried in the Down Control Information (DCI).
  • DCI Down Control Information
  • the bandwidth used by the terminal device or the bandwidth part may be smaller than the system bandwidth.
  • the terminal device may use different transmission bandwidths for data transmission in different time periods. With the change of the transmission bandwidth, the network device needs different size bitmaps to perform the RBG indication, which increases the number of blind detections by the terminal device and improves the blind detection complexity of the terminal device.
  • the embodiment of the present application provides a method for transmitting data, a terminal device, and a network device, which can reduce the blind detection complexity of the device.
  • a first aspect provides a method for transmitting data, including: determining, by a terminal device, a resource block group RBG size under the transmission bandwidth according to a specific parameter M and a transmission bandwidth used by the terminal device, where M is a positive integer
  • the terminal device receives a bitmap of the downlink information transmitted by the network device, where the bitmap includes M bits; and the terminal device determines values according to N bits of the M bits. Determining, in the N RBGs in the transmission bandwidth, a target RBG for transmitting data, where N is determined according to the transmission bandwidth and the RBG size, and N is a positive integer less than or equal to M;
  • the device transmits the data between the target RBG and the network device.
  • the terminal device determines the RBG size used under the current transmission bandwidth based on the specific parameters, and uses the same size bitmap to perform the RBG indication when using different transmission bandwidths, so that the terminal device can flexibly and efficiently determine the RBG size, and Reduce the complexity of blind detection.
  • the transmission bandwidth is equal to W
  • the RBG size is equal to S, where S is a minimum RBG size that is greater than W/M among a plurality of preset RBG sizes.
  • N is equal to among them Round up.
  • the method before the terminal device determines the RBG size in the transmission bandwidth according to the M and the transmission bandwidth used by the terminal device, the method further includes: the terminal device according to the The basic parameter set used determines M corresponding to the basic parameter set, wherein different basic parameter sets correspond to different Ms.
  • the method before the terminal device determines the RBG size in the transmission bandwidth according to the M and the transmission bandwidth used by the terminal device, the method further includes: receiving, by the terminal device The first indication information that is sent by the network device to indicate M, where the first indication information includes downlink control information DCI, radio resource control RRC signaling, system information SI, or media access control element MAC CE.
  • the first indication information includes downlink control information DCI, radio resource control RRC signaling, system information SI, or media access control element MAC CE.
  • the method before the terminal device determines the RBG size in the transmission bandwidth according to the M and the transmission bandwidth used by the terminal device, the method further includes: determining, by the terminal device, the terminal device The transmission bandwidth, wherein the transmission bandwidth used by the terminal device in different transmission time periods is different.
  • the terminal device determines the transmission bandwidth, where the terminal device receives second indication information that is sent by the network device and is used to indicate the transmission bandwidth, where the second indication is
  • the information includes DCI, RRC signaling, system information SI or MAC CE.
  • a second aspect provides a method for transmitting data, including: determining, by a network device, a resource block group RBG size under the transmission bandwidth according to a specific parameter M and a transmission bandwidth used for data transmission with the terminal device, where M is a positive integer; the network device determines, in the N RBGs within the transmission bandwidth, a target RBG for transmitting data, where N is determined according to the transmission bandwidth and the RBG size, and N is less than or equal to a positive integer of M; the network device generates a bitmap according to the target RBG, the bitmap includes M bits, and values on N bits of the M bits are used to indicate the target RBG And the network device sends the bitmap that is carried in the downlink control information to the terminal device; the network device transmits the data between the target RBG and the terminal device.
  • the network device determines the RBG size used under the current transmission bandwidth based on specific parameters, and uses the same size bitmap to perform RBG indication when different transmission bandwidths are used, so that the network device can flexibly and efficiently determine the RBG size, and Reduce the complexity of blind detection.
  • the transmission bandwidth is equal to W
  • the RBG size is equal to S, where S is a minimum RBG size that is greater than W/M among a plurality of preset RBG sizes.
  • N is equal to among them Round up.
  • the method before the determining, by the network device, the RBG size in the transmission bandwidth according to the transmission bandwidth used by the network device and the data transmission used by the terminal device, the method further includes: the network The device determines the M corresponding to the basic parameter set according to the basic parameter set used, wherein different basic parameter sets correspond to different Ms.
  • the method further includes: the network device sending, to the terminal device, first indication information for indicating M, where the first indication information includes downlink control information DCI, and radio resource control RRC signaling, system information SI or media access control element MAC CE.
  • the method before the determining, by the network device, the RBG size in the transmission bandwidth according to the transmission bandwidth used by the network device and the data transmission used by the terminal device, the method further includes: the network The device determines the transmission bandwidth, wherein the network device uses a transmission bandwidth different from that used by the terminal device for data transmission in different transmission time periods.
  • the method further includes: the network device sending, to the terminal device, second indication information indicating the transmission bandwidth, where the second indication information includes DCI, RRC signaling , system information SI or MAC CE.
  • a terminal device which can perform the operations of the terminal device in the above first aspect or any optional implementation manner of the first aspect.
  • the terminal device may comprise a modular unit for performing the operations of the terminal device in any of the possible implementations of the first aspect or the first aspect described above.
  • a network device which can perform the operations of the network device in any of the foregoing optional implementations of the second aspect or the second aspect.
  • the network device may comprise a modular unit for performing the operations of the network device in any of the possible implementations of the second aspect or the second aspect described above.
  • a terminal device comprising: a processor, a transceiver, and a memory.
  • the processor, the transceiver, and the memory communicate with each other through an internal connection path.
  • the memory is for storing instructions for executing instructions stored by the memory. When the process When the instruction is executed by the memory, the execution causes the terminal device to perform the method of the first aspect or any possible implementation of the first aspect, or the execution causes the terminal device to implement the terminal device provided by the third aspect.
  • a network device comprising: a processor, a transceiver, and a memory.
  • the processor, the transceiver, and the memory communicate with each other through an internal connection path.
  • the memory is for storing instructions for executing instructions stored by the memory.
  • the processor executes the instruction stored by the memory, the executing causes the network device to perform the method in any of the possible implementations of the second aspect or the second aspect, or the execution causes the network device to implement the network provided by the fourth aspect device.
  • a seventh aspect a computer readable storage medium storing a program, the program causing a terminal device to perform the first aspect described above, and any one of the various implementations of the transmission information Methods.
  • a computer readable storage medium storing a program causing a network device to perform the second aspect described above, and transmitting the information in any of the various implementations thereof Methods.
  • a system chip comprising an input interface, an output interface, a processor, and a memory
  • the processor is configured to execute an instruction stored by the memory, and when the instruction is executed, the processor can implement the foregoing The first aspect and any of its various implementations.
  • a system chip includes an input interface, an output interface, a processor, and a memory
  • the processor is configured to execute an instruction stored by the memory, and when the instruction is executed, the processor can implement the foregoing The second aspect and any of the various implementations.
  • a computer program product comprising instructions for causing a computer to execute the first aspect or any of the alternative implementations of the first aspect, when the computer program product is run on a computer method.
  • a twelfth aspect a computer program product comprising instructions for causing a computer to execute the second aspect or the optional implementation of any of the second aspect, when the computer program product is run on a computer method.
  • FIG. 1 is a schematic structural diagram of an application scenario of an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a method for transmitting data according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of data transmission in different transmission time periods according to an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a method for transmitting data according to an embodiment of the present application.
  • FIG. 5 is a schematic block diagram of a network device according to an embodiment of the present application.
  • FIG. 6 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a system chip according to an embodiment of the present application.
  • GSM Global System of Mobile Communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • the present application describes various embodiments in connection with a terminal device.
  • the terminal device may also refer to a user equipment (User Equipment, UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, and a user agent.
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication.
  • PLMN public land mobile network
  • the present application describes various embodiments in connection with a network device.
  • the network device may be a device for communicating with the terminal device, for example, may be a base station (Base Transceiver Station, BTS) in the GSM system or CDMA, or may be a base station (NodeB, NB) in the WCDMA system, or may be An evolved base station (Evolutional Node B, eNB or eNodeB) in an LTE system, Alternatively, the network device may be a relay station, an access point, an in-vehicle device, a wearable device, and a network side device in a future 5G network or a network side device in a future evolved PLMN network.
  • BTS Base Transceiver Station
  • NodeB NodeB
  • NB base station
  • eNodeB evolved base station
  • the network device may be a relay station, an access point, an in-vehicle device, a wearable device, and a network side device in a future 5G network
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application.
  • the communication system in FIG. 1 may include a network device 10 and a terminal device 20.
  • the network device 10 is configured to provide communication services for the terminal device 20 and access the core network.
  • the terminal device 20 can access the network by searching for synchronization signals, broadcast signals, and the like transmitted by the network device 10, thereby performing communication with the network.
  • the arrows shown in FIG. 1 may represent uplink/downlink transmissions by a cellular link between the terminal device 20 and the network device 10.
  • the network in the embodiment of the present application may refer to a Public Land Mobile Network (PLMN) or a Device to Device (D2D) network or a Machine to Machine/Man (M2M) network.
  • PLMN Public Land Mobile Network
  • D2D Device to Device
  • M2M Machine to Machine/Man
  • FIG. 1 is only a simplified schematic diagram of an example, and other terminal devices may also be included in the network, which are not shown in FIG.
  • the frequency domain resources occupied by the data transmission between the terminal device and the network device are allocated in units of Resource Block Groups (RBGs), and each RBG includes a set of consecutive Resource Blocks (RBs).
  • RBG size is related to the system bandwidth. For example, the relationship between the system bandwidth and the RBG size shown in Table 1, and the RBG Size in different System Bandwidths are different.
  • the system bandwidth in Table 1 is represented by the number of RBs included in the system bandwidth
  • the RBG size is represented by the number of RBs included in each RBG.
  • the network device needs a bitmap from 1 bit (bit) to 28 bits to indicate the transmission bandwidth to the terminal device.
  • the complexity of blind detection of devices becomes higher, and both delay and power consumption increase.
  • the embodiment of the present application determines the RBG size used in the current transmission bandwidth based on the specific parameters, and uses the same size bitmap to perform the RBG indication when using different transmission bandwidths, so that the terminal device and the network device can determine the RBG flexibly and efficiently.
  • FIG. 2 is a schematic flowchart of a method for transmitting data according to an embodiment of the present application.
  • the method shown in FIG. 2 can be performed by a terminal device, which can be, for example, the terminal device 20 shown in FIG. 1.
  • the method for transmitting data includes:
  • the terminal device determines the resource block group RBG size under the transmission bandwidth according to the specific parameter M and the transmission bandwidth used by the terminal device.
  • M is a positive integer.
  • M may be a fixed value, that is, the same under any transmission condition; M may also vary with transmission conditions, and different transmission conditions use different M values, for example, when transmitting using different basic parameter sets.
  • the specific parameter M in the embodiment of the present application can be obtained in the following two ways.
  • the method before determining, by the terminal device, the RBG size in the transmission bandwidth according to the specific parameter M and the transmission bandwidth used by the terminal device, the method further includes: determining, by the terminal device, the basic parameter set, The M corresponding to the basic parameter set, wherein different basic parameter sets correspond to different Ms.
  • the terminal device may determine the M corresponding to the used basic parameter set according to the basic parameter set used by itself, for example, the subcarrier spacing, and the correspondence between the plurality of basic parameter sets and the plurality of M values. value.
  • the method further includes: receiving, by the terminal device, the An indication message.
  • the first indication information includes downlink control information, downlink control information (DCI), radio resource control (RRC) signaling, system information (SI), or media access.
  • DCI downlink control information
  • RRC radio resource control
  • SI system information
  • CE media access.
  • Control Media Access Control, MAC control element (Control Element, CE).
  • the terminal device After determining the M, the terminal device also needs to know the transmission bandwidth that it can use during the current transmission time period.
  • the method further includes: determining, by the terminal device, the transmission bandwidth.
  • the transmission bandwidth may be less than or equal to the system bandwidth, and the transmission bandwidth used by the terminal device in different transmission time periods may be different.
  • the transmission bandwidth used by the terminal device for data transmission in the first time period T1 is 40 kHz, and the transmission bandwidth used for data transmission in the next time period T2 may be 80 kHz. Therefore, the terminal device can dynamically adjust the RBG size according to different transmission bandwidths in different transmission time periods, thereby implementing flexible and efficient resource allocation.
  • the terminal device determines the transmission bandwidth, where the terminal device receives the second indication information that is sent by the network device to indicate the transmission bandwidth.
  • the second indication information includes DCI, RRC signaling, system information SI, or MAC CE.
  • the RBG size under the transmission bandwidth may be determined according to M and the transmission bandwidth.
  • the transmission bandwidth is equal to W
  • the RBG size is equal to S, where S is a minimum RBG size that is greater than W/M among a plurality of preset RBG sizes.
  • the terminal device calculates a ratio W/M of the two according to the specific parameter M and the used transmission bandwidth W, and selects a minimum RBG size larger than W/M among the candidate multiple RBG sizes as the transmission bandwidth.
  • the size of the RBG used under W If the smallest RBG size greater than W/M among the multiple RBG sizes is equal to S, then the RBG size used under the transmission bandwidth W is equal to S.
  • the transmission bandwidth and the RBG size can also be expressed by other means such as Hertz (Hz) or Megahertz (MHz).
  • the terminal device may calculate W/M by itself according to the transmission bandwidths W and M and select a minimum RBG size greater than W/M among the multiple RBG sizes as the RBG size used in the transmission bandwidth;
  • the transmission bandwidth W and the correspondence between the plurality of transmission bandwidths and the plurality of RBG sizes determine the RBG size corresponding to the transmission bandwidth W.
  • the corresponding relationship between the multiple transmission bandwidths and the multiple RBG sizes may be presented by, for example, a table, a formula, an image, or the like, and the RBG sizes corresponding to different transmission bandwidths may be the same or different in the corresponding relationship.
  • the terminal device may determine the RBG size S corresponding to the transmission bandwidth W by looking up a table including a correspondence between a plurality of transmission bandwidths and a plurality of RBG sizes. This application does not limit this.
  • the terminal device receives a bitmap of the bearer transmitted in the downlink control information sent by the network device.
  • bitmap contains M bits.
  • At least N of the M bits may be used to indicate a target RBG for transmitting data among the N RBGs within the transmission bandwidth. Through the values on these N bits, the terminal device can select among the N RBGs those RBGs for transmitting the data with the network device.
  • the RBG size is determined according to the specific parameter M and the transmission bandwidth, and the number N of RBGs included in the transmission bandwidth can be obtained.
  • the network device uses the N bits of the M bits of the bitmap to indicate to the terminal device which of the N RBGs in the transmission bandwidth are RBGs that receive or transmit data.
  • the reason why the number of bits of the bitmap can be fixed is that the RBG allocation is performed using a bitmap containing M bits in any transmission bandwidth because when the candidate multiple RBG sizes cover a large range, the transmission bandwidth is different.
  • the number of RBGs does not differ too much and is close to M. In this way, The utilization ratio M/M of the M bits in the bitmap is relatively high.
  • the terminal device determines a target RBG for transmitting data among the N RBGs within the transmission bandwidth according to values on the N bits of the M bits.
  • the N bits of the M bits are used to indicate a target RBG for transmitting data in the N RBGs included in the transmission bandwidth, where N is determined according to the transmission bandwidth and the RBG size, N is a positive integer less than or equal to M.
  • the terminal device determines, by using the bitmap sent by the network device, which of the plurality of RBGs in the transmission bandwidth are RBGs for data transmission.
  • the bitmap includes the number of bits equal to M, and N of the M bits are used to indicate a target RBG for transmitting data in the N RBGs.
  • the remaining M-N bits can be left blank or used for the transmission of other signals.
  • the N here is related to the transmission bandwidth and the RBG size under the transmission bandwidth.
  • N is equal to among them Round up.
  • N can be understood as the number of RBGs included in the transmission bandwidth W when the RBG size is S, and thus the N bits of the M bits of the bitmap are used to indicate the data transmission for the terminal device in the N RBGs.
  • the target RBG is related to the transmission bandwidth and the RBG size under the transmission bandwidth.
  • N is equal to among them Round up.
  • N can be understood as the number of RBGs included in the transmission bandwidth W when the RBG size is S, and thus the N bits of the M bits of the bitmap are used to indicate the data transmission for the terminal device in the N RBGs.
  • the target RBG is related to the transmission bandwidth and the RBG size under the transmission bandwidth.
  • N is equal to among them Round up.
  • N can be understood as the number of RBGs included in the transmission bandwidth W when the RBG size is S, and thus the N bits of the M bits of the bitmap are used
  • the terminal device transmits the data between the target RBG and the network device.
  • the bit map includes 9 bits, and 6 bits of the 9 bits are used for RBG allocation.
  • the first 4 RBGs in the transmission bandwidth can be represented (RBG flags are RBG#0, RBG#1, RBG#2, and RBG#3, respectively).
  • RBG flags are RBG#0, RBG#1, RBG#2, and RBG#3, respectively.
  • the terminal device determines the RBG size used under the current transmission bandwidth based on the specific parameters, and uses the same size bitmap to perform the RBG indication when using different transmission bandwidths, so that the terminal device can flexibly and efficiently determine the RBG size, and Reduce the complexity of blind detection.
  • the terminal device flexibly determines the RBG size used in the transmission bandwidth according to the specific parameter and the transmission bandwidth, and the RBG size used by the terminal device in different transmission bandwidths varies, that is, the RBG size changes with the transmission bandwidth, and thus Even if the fixed bit map is M bits and the N bits are used to indicate the target RBG, the utilization (N/M) of the M bits is higher.
  • the method for transmitting data in the embodiment of the present application is exemplified below with reference to Tables 4 to 12.
  • the transmission bandwidth W indicates that the transmission bandwidth includes W RBs
  • the RBG size S indicates that the RBG includes S RBs.
  • the candidate RBG size S i ⁇ 1, 2, 4, 8, 16 ⁇ , for a certain transmission bandwidth W i , the smallest RBG size greater than W i /35 is used as the transmission bandwidth W i
  • the next RBG size S i The bitmap used for RBG allocation includes 35 bits and can be used. Bits for RBG allocation, The remaining bits can be left blank or used for other purposes.
  • the transmission bandwidth used by the terminal device during different transmission time periods may be different, such as a schematic diagram of data transmission in different transmission time periods as shown in FIG.
  • the terminal device dynamically adjusts the RBG size according to different transmission bandwidths in different transmission time periods, thereby implementing flexible and efficient resource allocation.
  • the terminal device determines the RBG size according to the specific parameter M and the transmission bandwidth, thereby obtaining the number N of RBGs included in the transmission bandwidth.
  • N bits out of the M bits of the bitmap which of the N RBGs of the transmission bandwidth are RBGs that receive or transmit data.
  • the RBG allocation is performed using a bit map containing M bits under any transmission bandwidth.
  • the candidate multiple RBG sizes cover a large range, the number of RBGs under different transmission bandwidths does not differ too much and is close to M.
  • the minimum value of N is 21, and the maximum value is 35.
  • the utilization ratio N/M of the M bits in the bitmap is relatively high.
  • the RBG size is 1, and 10 bits are required for indication.
  • the transmission bandwidth is 110
  • the RBG size is 4, and 28 bits are required for indication.
  • the size of the bitmap is fixed to 28 bits, then when the transmission bandwidth is 10, only 10 of the 28 bits of the bitmap are used to indicate the RBG, and the remaining bits are wasted, and the bits are utilized.
  • the rate is very low and the number of bits in the bitmap cannot be fixed. Since the number of bits of the bitmap transmitted for different transmission bandwidths is constantly changing, this increases the blind detection complexity of the terminal device.
  • the candidate RBG size S i ⁇ 1, 2, 4, 8 ⁇ , for a certain transmission bandwidth W i , the smallest RBG size greater than W i /35 is used as the transmission bandwidth W i RBG size S i .
  • the bitmap used for RBG allocation includes 35 bits and can be used. Bits for RBG allocation, The remaining bits can be left blank or used for other purposes.
  • the candidate RBG size S i ⁇ 1, 2, 4, 8, 16 ⁇ , for a certain transmission bandwidth W i , the smallest RBG size greater than W i /18 is used as the transmission bandwidth W i
  • the next RBG size S i The bitmap used for RBG allocation includes 18 bits and can be used. Bits for RBG allocation, The remaining bits can be left blank or used for other purposes.
  • M 35 when the subcarrier spacing is 15 kHz
  • M 18 when the subcarrier spacing is 30 kHz
  • the M values corresponding to different subcarrier spacings are different, when the subcarrier spacing is changed from 15 kHz to 30 kHz.
  • the M value can be appropriately reduced, and the overhead of the downlink control signaling is further reduced by reducing the number of bits in the bitmap.
  • the terminal device determines that the size of the bitmap is changed to 18 bits, the downlink control signaling can be blindly detected according to the 18-bit bitmap, and the downlink control signaling is blindly checked according to the 35-bit bitmap, and the terminal device is not added. Blind check complexity.
  • the candidate RBG size S i ⁇ 1, 2, 4 ⁇ , for a certain transmission bandwidth W i , the smallest RBG size greater than W i /35 is used as the RBG size under the transmission bandwidth W i S i .
  • the bitmap used for RBG allocation includes 35 bits and can be used. Bits for RBG allocation, The remaining bits can be left blank or used for other purposes.
  • the candidate RBG size S i ⁇ 1, 2, 4, 8, 16 ⁇ , for a certain transmission bandwidth W i , the smallest RBG size greater than W i /9 is used as the transmission bandwidth W i
  • the next RBG size S i The bitmap used for RBG allocation includes 9 bits and can be used. Bits for RBG allocation, The remaining bits can be left blank or used for other purposes.
  • the downlink control signaling can be blindly detected according to the 9-bit bitmap, and the downlink control signaling is blindly checked according to the 35-bit bitmap, and the terminal device is not added. Blind check complexity.
  • the bitmap used for RBG allocation includes 35 bits and can be used. Bits for RBG allocation, The remaining bits can be left blank or used for other purposes.
  • the candidate RBG size S i ⁇ 1, 2, 4, 8, 16 ⁇ , for a certain transmission bandwidth W i , the smallest RBG size greater than W i /5 is used as the transmission bandwidth W i
  • the next RBG size S i The bitmap used for RBG allocation includes 5 bits and can be used. Bits for RBG allocation, The remaining bits can be left blank or used for other purposes.
  • the M value can be appropriately reduced, and the number of bits in the bitmap is further reduced. Reduce the overhead of downlink control signaling.
  • the downlink control signaling can be blindly detected according to the 5-bit bitmap, and the downlink control signaling is blindly checked according to the 35-bit bitmap, and the terminal device is not added. Blind check complexity.
  • the candidate RBG size S i ⁇ 1, 2, 4, 8, 16 ⁇ , for a certain transmission bandwidth W i , the smallest RBG size greater than W i //3 is used as the transmission bandwidth.
  • the bitmap used for RBG allocation includes 3 bits and can be used. Bits for RBG allocation, The remaining bits can be left blank or used for other purposes.
  • the subcarrier spacing is changed from 15 kHz, 30 kHz, 60 kHz, or 120 kHz to 240 kHz, it can be appropriately reduced.
  • the small M value further reduces the overhead of downlink control signaling by reducing the number of bits in the bitmap.
  • the downlink control signaling can be blindly detected according to the 3-bit bitmap, and the downlink control signaling is blindly checked according to the 35-bit bitmap, and the terminal device is not added. Blind check complexity.
  • the transmission bandwidth in the 5G NR system will be greatly increased (for example, up to 100MHz), and the number of RBs can reach 550, which requires more flexible allocation of frequency domain resources, and therefore requires a larger RBG size.
  • the size of the bitmap for resource allocation is changed more frequently, and the size of the downlink control information for carrying the resource allocation information also changes frequently, and the terminal device or the network device blindly detects the DCI.
  • the terminal device or the network device blindly detects the DCI.
  • There are also too many possibilities for the number of possible payloads resulting in a significant increase in the complexity, latency and power consumption of blind detection.
  • the embodiment of the present application proposes to determine that the RBG used in the current transmission bandwidth is large based on specific parameters. Small, and the RBG indication is performed using the same size bitmap for different transmission bandwidths, so that the terminal device can flexibly and efficiently determine the size of the RBG and reduce the complexity of the blind detection.
  • FIG. 4 is a schematic flowchart of a method for transmitting data according to an embodiment of the present application.
  • the method shown in FIG. 4 can be performed by a network device, which can be, for example, the network device 10 shown in FIG. 1.
  • the method for transmitting data includes:
  • the network device determines the resource block group RBG size under the transmission bandwidth according to the specific parameter M and the transmission bandwidth used for data transmission with the terminal device.
  • M is a positive integer.
  • M may be a fixed value, that is, the same under any transmission condition; M may also vary with transmission conditions, and different transmission conditions use different M values, for example, when transmitting using different basic parameter sets.
  • the method before determining, by the network device, the RBG size in the transmission bandwidth according to the specific parameter M and the transmission bandwidth used for data transmission by the terminal device, the method further includes: the network device according to the basic parameter set used, Determining M corresponding to the basic parameter set, wherein different basic parameter sets correspond to different Ms.
  • the network device may determine the value of M corresponding to the used basic parameter set according to the used basic parameter set, for example, the subcarrier spacing, and the correspondence between the plurality of basic parameter sets and the plurality of M values. .
  • M 35 when the subcarrier spacing is 15 kHz
  • M 18 when the subcarrier spacing is 30 kHz
  • M 9 when the subcarrier spacing is 60 kHz
  • M carrier spacing when the subcarrier spacing is 120 kHz. 5
  • M 3 when the subcarrier spacing is 240 kHz.
  • the method further includes: the network device sending the first indication information for indicating the M to the terminal device.
  • the first indication information includes downlink control information, finite resource control RRC signaling, system information SI, or a medium access control element MAC CE.
  • the network device After determining the M, the network device also needs to know the transmission bandwidth for data transmission with the terminal device during the current transmission time period.
  • the method further includes: determining, by the network device, the transmission bandwidth.
  • the transmission bandwidth may be less than or equal to the system bandwidth, and the network device uses different transmission bandwidths for data transmission with the terminal device in different transmission time periods.
  • the transmission bandwidth used by the terminal device for data transmission in the first time period T1 is 40 kHz
  • the transmission bandwidth used for data transmission in the next time period T2 may be 80 kHz.
  • the terminal device can dynamically adjust the RBG size according to different transmission bandwidths in different transmission time periods, thereby achieving flexible and efficient resource allocation.
  • the method further includes: the network device sending, to the terminal device, second indication information indicating the transmission bandwidth.
  • the second indication information includes DCI, RRC signaling, system information SI, or MAC CE.
  • the RBG size under the transmission bandwidth can be determined according to M and the transmission bandwidth.
  • the transmission bandwidth is equal to W
  • the RBG size is equal to S, where S is a minimum RBG size that is greater than W/M among a plurality of preset RBG sizes.
  • the network device may calculate a ratio W/M of the two according to the specific parameter M and the used transmission bandwidth W, and select a minimum RBG size greater than W/M among the candidate multiple RBG sizes as the transmission.
  • the RBG size used under bandwidth W If the smallest RBG size greater than W/M among the multiple RBG sizes is equal to S, then the RBG size used under the transmission bandwidth W is equal to S.
  • the network device may calculate W/M according to the transmission bandwidths W and M, and select a minimum RBG size greater than W/M among the multiple RBG sizes as the RBG size used in the transmission bandwidth; or according to the transmission bandwidth W And a correspondence between the plurality of transmission bandwidths and the plurality of RBG sizes, and determining the RBG size corresponding to the transmission bandwidth W.
  • the corresponding relationship between the multiple transmission bandwidths and the multiple RBG sizes may be presented by, for example, a table, a formula, an image, or the like, and the RBG sizes corresponding to different transmission bandwidths may be the same or different in the corresponding relationship.
  • the terminal device may determine the RBG size S corresponding to the transmission bandwidth W by looking up a table including a correspondence between a plurality of transmission bandwidths and a plurality of RBG sizes. This application does not limit this.
  • the network device determines a target RBG for transmitting data among the N RBGs within the transmission bandwidth.
  • N is determined according to the transmission bandwidth and the RBG size, and N is a positive integer less than or equal to M.
  • the N here is related to the transmission bandwidth and the RBG size under the transmission bandwidth.
  • N is equal to among them Round up.
  • N can be understood as the number of RBGs included in the transmission bandwidth W when the RBG size is S.
  • the network device generates a bitmap according to the target RBG, where the bitmap includes M A bit, the value of the N bits of the M bits is used to indicate the target RBG.
  • the target RBG may be indicated to the terminal device by means of a bitmap.
  • the bitmap includes M bits, and the values on the N bits of the M bits can be used to indicate which of the N RBGs can be used for data transmission with the terminal device.
  • the network device transmits a bitmap of the bearer in the downlink control information to the terminal device.
  • the N bits of the M bits are used to indicate a target RBG for transmitting data in the N RBGs included in the transmission bandwidth, and N is determined according to the transmission bandwidth and the RBG size.
  • the network device instructs the terminal device to perform data transmission on which of the plurality of RBGs in the transmission bandwidth by transmitting the bitmap to the terminal device.
  • the number of bits included in the bitmap is equal to M, and at least N of the M bits can be used to indicate a target for transmitting data between the N RBGs and the terminal device in the transmission bandwidth. RBG.
  • the remaining M-N bits can be left blank or used for the transmission of other signals.
  • N can be understood as the number of RBGs included in the transmission bandwidth W when the RBG size is S.
  • N of the M bits of the bitmap are used to indicate the target RBG for data transmission for the terminal device in the N RBGs.
  • the network device transmits the data between the target RBG and the terminal device.
  • the network device determines the RBG size and performs data transmission based on the RBG size and the bitmap. For details, refer to the foregoing description of the terminal device in FIG. 2, and details are not described herein for brevity.
  • the network device determines the RBG size used in the current transmission bandwidth based on the specific parameter, and uses the same size bitmap to perform the RBG indication when using different transmission bandwidths, so that the network device can determine the flexible and efficient manner.
  • RBG size and reduce the complexity of blind detection.
  • the network device flexibly determines the RBG size used in the transmission bandwidth according to the specific parameter and the transmission bandwidth. Since the RBG size used by the network device in different transmission bandwidths is different, that is, the RBG size changes with the transmission bandwidth, Even if the fixed bit map is M bits and the N bits are used to indicate the target RBG, the utilization (N/M) of the M bits is higher.
  • the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be determined.
  • the implementation process of the embodiment of the present application constitutes any limitation.
  • FIG. 5 is a schematic block diagram of a terminal device 500 according to an embodiment of the present application. As shown in FIG. 5, the terminal device 500 includes a determining unit 510 and a transmitting unit 520. among them:
  • the determining unit 510 is configured to determine, according to the specific parameter M, and the transmission bandwidth used by the terminal device, the resource block group RBG size in the transmission bandwidth, where M is a positive integer;
  • the transmitting unit 520 is configured to receive a bitmap that is sent by the network device and is carried in the downlink control information, where the bitmap includes M bits;
  • the determining unit 510 is further configured to determine, according to a value on the N bits of the M bits, a target RBG for transmitting data in the N RBGs in the transmission bandwidth, where N is according to the Determined by the transmission bandwidth and the RBG size, N is a positive integer less than or equal to M;
  • the transmitting unit 520 is further configured to transmit the data between the network device and the network device on the target RBG.
  • the terminal device determines the RBG size used under the current transmission bandwidth based on the specific parameters, and uses the same size bitmap to perform the RBG indication when using different transmission bandwidths, so that the terminal device can determine the size of the RBG flexibly and efficiently. And reduce the complexity of blind detection.
  • the transmission bandwidth is equal to W
  • the RBG size is equal to S, where S is a minimum RBG size that is greater than W/M among a plurality of preset RBG sizes.
  • N is equal to among them Round up.
  • the determining unit 510 is further configured to: determine M corresponding to the basic parameter set according to the used basic parameter set, where different basic parameter sets correspond to different Ms.
  • the transmitting unit 520 is further configured to: receive first indication information that is sent by the network device to indicate M, where the first indication information includes downlink control information DCI, radio resource control RRC signaling, and a system. Information SI or media access control element MAC CE.
  • the determining unit 510 is further configured to: determine the transmission bandwidth, where the transmission bandwidth used by the terminal device in different transmission time periods is different.
  • the determining unit 510 is configured to: receive, by using the sending unit 520, second indication information that is sent by the network device to indicate the transmission bandwidth, where the second indication information includes a DCI or an RRC letter. Order, system information SI or MAC CE.
  • FIG. 6 is a schematic block diagram of a network device 600 in accordance with an embodiment of the present application.
  • the network device 600 includes a determining unit 610, a processing unit 620, and a transmitting unit 630. among them:
  • the determining unit 610 is configured to perform data transmission according to the specific parameter M and the terminal device Determining, by using a transmission bandwidth, a resource block group RBG size under the transmission bandwidth, where M is a positive integer;
  • the determining unit 610 is further configured to: determine, in the N RBGs in the transmission bandwidth, a target RBG for transmitting data, where N is determined according to the transmission bandwidth and the RBG size, where N is less than or equal to a positive integer of M;
  • the processing unit 620 is configured to generate a bitmap according to the target RBG, where the bitmap includes M bits, and values on N bits of the M bits are used to indicate the target RBG;
  • the transmitting unit 630 is configured to send, to the terminal device, the bitmap that is carried in the downlink control information
  • the transmitting unit 630 is further configured to transmit the data between the target RBG and the terminal device.
  • the network device determines the RBG size used under the current transmission bandwidth based on the specific parameters, and uses the same size bitmap to perform the RBG indication when using different transmission bandwidths, so that the network device can determine the size of the RBG flexibly and efficiently. And reduce the complexity of blind detection.
  • the transmission bandwidth is equal to W
  • the RBG size is equal to S, where S is a minimum RBG size that is greater than W/M among a plurality of preset RBG sizes.
  • N is equal to among them Round up.
  • the determining unit 610 is further configured to: determine M corresponding to the basic parameter set according to the used basic parameter set, where different basic parameter sets correspond to different Ms.
  • the transmitting unit 630 is further configured to: send, to the terminal device, first indication information for indicating M, where the first indication information includes downlink control information DCI, radio resource control RRC signaling, and system information. SI or media access control element MAC CE.
  • the determining unit 610 is further configured to: determine the transmission bandwidth, where the network device uses a transmission bandwidth different from that used by the terminal device for data transmission in different transmission time periods.
  • the transmitting unit 630 is further configured to: send, to the terminal device, second indication information that is used to indicate the transmission bandwidth, where the second indication information includes DCI, RRC signaling, system information, SI, or MAC. CE.
  • FIG. 7 is a schematic structural diagram of a terminal device 700 according to an embodiment of the present application.
  • the terminal device includes a processor 710, a transceiver 720, and a memory 730, wherein the processor 710, the transceiver 720, and the memory 730 communicate with each other through an internal connection path.
  • the memory 730 is used In the storage instruction, the processor 710 is configured to execute an instruction stored in the memory 730 to control the transceiver 720 to receive a signal or send a signal.
  • the processor 710 is configured to determine, according to the specific parameter M, the transmission bandwidth used by the terminal device, the resource block group RBG size in the transmission bandwidth, where M is a positive integer;
  • the transceiver 720 is configured to receive a bitmap that is sent by the network device and is carried in the downlink control information, where the bitmap includes M bits;
  • the processor 710 is further configured to determine, according to a value on the N bits of the M bits, a target RBG for transmitting data in the N RBGs in the transmission bandwidth, where N is Determined by the transmission bandwidth and the RBG size, N is a positive integer less than or equal to M;
  • the transceiver 720 is further configured to transmit the data between the target RBG and the network device.
  • the terminal device determines the RBG size used under the current transmission bandwidth based on the specific parameters, and uses the same size bitmap to perform the RBG indication when using different transmission bandwidths, so that the terminal device can determine the size of the RBG flexibly and efficiently. And reduce the complexity of blind detection.
  • the transmission bandwidth is equal to W
  • the RBG size is equal to S, where S is a minimum RBG size that is greater than W/M among a plurality of preset RBG sizes.
  • N is equal to among them Round up.
  • the processor 710 is further configured to: determine M corresponding to the basic parameter set according to the used basic parameter set, where different basic parameter sets correspond to different Ms.
  • the transceiver 720 is further configured to: receive first indication information that is sent by the network device to indicate M, where the first indication information includes downlink control information DCI, radio resource control RRC signaling, and a system. Information SI or media access control element MAC CE.
  • the processor 710 is further configured to: determine the transmission bandwidth, where the terminal device uses different transmission bandwidths in different transmission time periods.
  • the processor 710 is specifically configured to: receive, by using the transceiver 720, second indication information that is sent by the network device to indicate the transmission bandwidth, where the second indication information includes a DCI or an RRC letter. Order, system information SI or MAC CE.
  • the processor 710 may be a central processing unit (CPU), and the processor 710 may also be another general-purpose processor, a digital signal processor (DSP). , Application Specific Integrated Circuit (ASIC), Field Programmable Gate Array (Field Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 730 can include read only memory and random access memory and provides instructions and data to the processor 710. A portion of the memory 730 may also include a non-volatile random access memory.
  • each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 710 or an instruction in a form of software.
  • the steps of the positioning method disclosed in the embodiment of the present application may be directly implemented by the hardware processor, or may be performed by a combination of hardware and software modules in the processor 710.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in memory 730, and processor 710 reads the information in memory 730 and, in conjunction with its hardware, performs the steps of the above method. To avoid repetition, it will not be described in detail here.
  • the terminal device 700 according to the embodiment of the present application may correspond to the terminal device for performing the method 200 in the foregoing method 200, and the terminal device 500 according to the embodiment of the present application, and each unit or module in the terminal device 700 is used for The operations or processes performed by the terminal device in the above method 100 are performed.
  • each unit or module in the terminal device 700 is used for The operations or processes performed by the terminal device in the above method 100 are performed.
  • detailed description thereof will be omitted.
  • FIG. 8 is a schematic structural diagram of a network device 800 according to an embodiment of the present application.
  • the network device includes a processor 810, a transceiver 820, and a memory 830, wherein the processor 810, the transceiver 820, and the memory 830 communicate with each other through an internal connection path.
  • the memory 830 is for storing instructions
  • the processor 810 is configured to execute instructions stored by the memory 830 to control the transceiver 820 to receive signals or send signals.
  • the processor 810 is configured to determine a resource block group RBG size in the transmission bandwidth according to a specific parameter M and a transmission bandwidth used for data transmission by the terminal device, where M is a positive integer;
  • the processor 810 is further configured to: determine, in the N RBGs in the transmission bandwidth, a target RBG for transmitting data, where N is determined according to the transmission bandwidth and the RBG size, where N is less than or a positive integer equal to M;
  • the processor 810 is further configured to generate a bitmap according to the target RBG, where the bitmap includes M bits, and values on N bits of the M bits are used to indicate the target RBG;
  • the transceiver 820 is further configured to send, to the terminal device, a bearer in the downlink control information.
  • the transceiver 820 is further configured to transmit the data between the target RBG and the terminal device.
  • the network device determines the RBG size used under the current transmission bandwidth based on the specific parameters, and uses the same size bitmap to perform the RBG indication when using different transmission bandwidths, so that the network device can determine the size of the RBG flexibly and efficiently. And reduce the complexity of blind detection.
  • the transmission bandwidth is equal to W
  • the RBG size is equal to S, where S is a minimum RBG size that is greater than W/M among a plurality of preset RBG sizes.
  • N is equal to among them Round up.
  • the processor 810 is further configured to: determine M corresponding to the basic parameter set according to the used basic parameter set, where different basic parameter sets correspond to different Ms.
  • the transceiver 820 is further configured to: send, to the terminal device, first indication information for indicating M, where the first indication information includes downlink control information DCI, radio resource control RRC signaling, and system information. SI or media access control element MAC CE.
  • the processor 810 is further configured to: determine the transmission bandwidth, where the network device uses a transmission bandwidth different from that used by the terminal device for data transmission in different transmission time periods.
  • the transceiver 820 is further configured to: send, to the terminal device, second indication information that is used to indicate the transmission bandwidth, where the second indication information includes DCI, RRC signaling, system information, SI, or MAC. CE.
  • the processor 810 may be a central processing unit (CPU), and the processor 810 may also be other general-purpose processors, digital signal processors (DSPs), and application specific integrated circuits. (ASIC), off-the-shelf programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and more.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 830 can include read only memory and random access memory and provides instructions and data to the processor 810. A portion of the memory 830 may also include a non-volatile random access memory. In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 810 or an instruction in a form of software. The steps of the positioning method disclosed in the embodiments of the present application may be directly implemented by the hardware processor, or may be performed by a combination of hardware and software modules in the processor 810. Software modules can be located in random access memory, flash memory, read-only memory, and can be programmed Read-only memory or electrically erasable programmable memory, registers, etc. are well-known storage media in the field. The storage medium is located in memory 830, and processor 810 reads the information in memory 830 and, in conjunction with its hardware, performs the steps of the above method. To avoid repetition, it will not be described in detail here.
  • the network device 800 may correspond to the network device for performing the method 400 in the foregoing method 400, and the network device 600 according to the embodiment of the present application, and each unit or module in the network device 800 is used for The operations or processes performed by the network device in the above method 400 are performed.
  • each unit or module in the network device 800 is used for The operations or processes performed by the network device in the above method 400 are performed.
  • detailed description thereof will be omitted.
  • FIG. 9 is a schematic structural diagram of a system chip according to an embodiment of the present application.
  • the system chip 900 of FIG. 9 includes an input interface 901, an output interface 902, at least one processor 903, and a memory 904.
  • the input interface 901, the output interface 902, the processor 903, and the memory 904 are interconnected by an internal connection path.
  • the processor 903 is configured to execute code in the memory 904.
  • the processor 903 can implement the method 200 performed by the terminal device in the method embodiment. For the sake of brevity, it will not be repeated here.
  • the processor 903 can implement the method 400 performed by the network device in the method embodiments. For the sake of brevity, it will not be repeated here.
  • the disclosed systems, devices, and methods 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 may be Integrate into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one monitoring unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • This functionality if implemented as a software functional unit and sold or used as a standalone product, can be stored on a computer readable storage medium.
  • the technical solution of the present application which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

Abstract

本申请公开了一种传输数据的方法、终端设备和网络设备，该方法包括：终端设备根据特定参数M，以及所使用的传输带宽，确定所述传输带宽下的资源块组RBG大小，M为正整数；接收网络设备发送的承载在下行控制信息中的比特图，所述比特图包含M个比特位；根据所述M个比特位中的N个比特位上的值，确定所述传输带宽内的N个RBG中用于传输数据的目标RBG，其中，N是根据所述传输带宽和所述RBG大小确定的，N为小于或等于M的正整数；在所述目标RBG上与所述网络设备之间传输所述数据。因此，由于在使用不同传输带宽时均使用相同大小的比特图进行RBG的指示，能够降低终端设备的盲检复杂度。

Description

传输数据的方法、终端设备和网络设备 技术领域
本申请实施例涉及无线通信领域，并且更具体地，涉及一种传输数据的方法、终端设备和网络设备。
背景技术
在长期演进(Long Term Evolution，LTE)系统中，数据传输所占用的频域资源以资源块组(Resource Block Group，RBG)为单位进行分配，每个RBG中包含了一组连续的资源块(Resource Block，RB)，RBG大小(RBG Size)与系统带宽相关，不同系统带宽中的RBG大小是不同的，因而不同系统带宽中的RBG的数量也不相同。网络设备可以将终端设备所使用的RBG通过承载在下行控制信息(Download Control Information，DCI)中的比特图(bitmap)指示给终端设备。
在5G系统或称新无线(New Radio)系统中，终端设备的使用带宽或称传输带宽(bandwidth part)可以小于系统带宽，终端设备在不同时间段内可以使用不同的传输带宽进行数据传输，随着传输带宽的变化，网络设备需要不同大小的比特图来进行RBG的指示，这样就增加了终端设备进行盲检测的次数，提高了终端设备的盲检复杂度。
发明内容
本申请实施例提供了一种传输数据的方法、终端设备和网络设备，能够降低设备的盲检复杂度。
第一方面，提供了一种传输数据的方法，包括：终端设备根据特定参数M，以及所述终端设备所使用的传输带宽，确定所述传输带宽下的资源块组RBG大小，M为正整数；所述终端设备接收网络设备发送的承载在下行控制信息中的比特图，所述比特图包含M个比特位；所述终端设备根据所述M个比特位中的N个比特位上的值，确定所述传输带宽内的N个RBG中用于传输数据的目标RBG，其中，N是根据所述传输带宽和所述RBG大小确定的，N为小于或等于M的正整数；所述终端设备在所述目标RBG上与所述网络设备之间传输所述数据。
因此，终端设备基于特定的参数确定当前传输带宽下所使用的RBG大小，并且在使用不同传输带宽时均使用相同大小的比特图进行RBG的指示，使得终端设备能够灵活高效地确定RBG大小，并降低盲检的复杂度。
在一种可能的实现方式中，所述传输带宽等于W，所述RBG大小等于S，S为预设的多个RBG大小中大于W/M的最小的RBG大小。
在一种可能的实现方式中，N等于
Figure PCTCN2017087630-appb-000001
其中
Figure PCTCN2017087630-appb-000002
为向上取整。
在一种可能的实现方式中，在所述终端设备根据M，以及所述终端设备所使用的传输带宽，确定所述传输带宽下的RBG大小之前，所述方法还包括：所述终端设备根据所使用的基础参数集，确定与所述基础参数集对应的M，其中，不同基础参数集对应不同的M。
在一种可能的实现方式中，在所述终端设备根据M，以及所述终端设备所使用的传输带宽，确定所述传输带宽下的RBG大小之前，所述方法还包括：所述终端设备接收所述网络设备发送的用于指示M的第一指示信息，所述第一指示信息包括下行控制信息DCI、无线资源控制RRC信令、系统信息SI或媒体访问控制元素MAC CE。
在一种可能的实现方式中，在所述终端设备根据M，以及所述终端设备所使用的传输带宽，确定所述传输带宽下的RBG大小之前，所述方法还包括：所述终端设备确定所述传输带宽，其中，所述终端设备在不同传输时间周期内使用的传输带宽不同。
在一种可能的实现方式中，所述终端设备确定所述传输带宽，包括：所述终端设备接收所述网络设备发送的用于指示所述传输带宽的第二指示信息，所述第二指示信息包括DCI、RRC信令、系统信息SI或MAC CE。
第二方面，提供了一种传输数据的方法，包括：网络设备根据特定参数M，以及与终端设备进行数据传输所使用的传输带宽，确定所述传输带宽下的资源块组RBG大小，M为正整数；所述网络设备在所述传输带宽内的N个RBG中，确定用于传输数据的目标RBG，其中，N是根据所述传输带宽和所述RBG大小确定的，N为小于或等于M的正整数；所述网络设备根据所述目标RBG生成比特图，所述比特图包含M个比特位，所述M个比特位中的N个比特位上的值用于指示所述目标RBG；所述网络设备向所述终端设备发送承载在下行控制信息中的所述比特图；所述网络设备在所述目标RBG上与所述终端设备之间传输所述数据。
因此，网络设备基于特定的参数确定当前传输带宽下所使用的RBG大小，并且在使用不同传输带宽时均使用相同大小的比特图进行RBG的指示，使得网络设备能够灵活高效地确定RBG大小，并降低盲检的复杂度。
在一种可能的实现方式中，所述传输带宽等于W，所述RBG大小等于S，S为预设的多个RBG大小中大于W/M的最小的RBG大小。
在一种可能的实现方式中，N等于
Figure PCTCN2017087630-appb-000003
其中
Figure PCTCN2017087630-appb-000004
为向上取整。
在一种可能的实现方式中，在所述网络设备根据M，以及与终端设备进行数据传输所使用的传输带宽，确定所述传输带宽下的RBG大小之前，所述方法还包括：所述网络设备根据所使用的基础参数集，确定与所述基础参数集对应的M，其中，不同基础参数集对应不同的M。
在一种可能的实现方式中，所述方法还包括：所述网络设备向所述终端设备发送用于指示M的第一指示信息，所述第一指示信息包括下行控制信息DCI、无线资源控制RRC信令、系统信息SI或媒体访问控制元素MAC CE。
在一种可能的实现方式中，在所述网络设备根据M，以及与终端设备进行数据传输所使用的传输带宽，确定所述传输带宽下的RBG大小之前，所述方法还包括：所述网络设备确定所述传输带宽，其中，所述网络设备在不同传输时间周期内与所述终端设备进行数据传输所使用的传输带宽不同。
在一种可能的实现方式中，所述方法还包括：所述网络设备向所述终端设备发送用于指示所述传输带宽的第二指示信息，所述第二指示信息包括DCI、RRC信令、系统信息SI或MAC CE。
第三方面，提供了一种终端设备，该终端设备可以执行上述第一方面或第一方面的任意可选的实现方式中的终端设备的操作。具体地，该终端设备可以包括用于执行上述第一方面或第一方面的任意可能的实现方式中的终端设备的操作的模块单元。
第四方面，提供了一种网络设备，该网络设备可以执行上述第二方面或第二方面的任意可选的实现方式中的网络设备的操作。具体地，该网络设备可以包括用于执行上述第二方面或第二方面的任意可能的实现方式中的网络设备的操作的模块单元。
第五方面，提供了一种终端设备，该终端设备包括：处理器、收发器和存储器。其中，该处理器、收发器和存储器之间通过内部连接通路互相通信。该存储器用于存储指令，该处理器用于执行该存储器存储的指令。当该处理 器执行该存储器存储的指令时，该执行使得该终端设备执行第一方面或第一方面的任意可能的实现方式中的方法，或者该执行使得该终端设备实现第三方面提供的终端设备。
第六方面，提供了一种网络设备，该网络设备包括：处理器、收发器和存储器。其中，该处理器、收发器和存储器之间通过内部连接通路互相通信。该存储器用于存储指令，该处理器用于执行该存储器存储的指令。当该处理器执行该存储器存储的指令时，该执行使得该网络设备执行第二方面或第二方面的任意可能的实现方式中的方法，或者该执行使得该网络设备实现第四方面提供的网络设备。
第七方面，提供了一种计算机可读存储介质，所述计算机可读存储介质存储有程序，所述程序使得终端设备执行上述第一方面，及其各种实现方式中的任一种传输信息的方法。
第八方面，提供了一种计算机可读存储介质，所述计算机可读存储介质存储有程序，所述程序使得网络设备执行上述第二方面，及其各种实现方式中的任一种传输信息的方法。
第九方面，提供了一种系统芯片，该系统芯片包括输入接口、输出接口、处理器和存储器，该处理器用于执行该存储器存储的指令，当该指令被执行时，该处理器可以实现前述第一方面及其各种实现方式中的任一种方法。
第十方面，提供了一种系统芯片，该系统芯片包括输入接口、输出接口、处理器和存储器，该处理器用于执行该存储器存储的指令，当该指令被执行时，该处理器可以实现前述第二方面及其各种实现方式中的任一种方法。
第十一方面，提供了一种包括指令的计算机程序产品，当所述计算机程序产品在计算机上运行时，使得该计算机执行上述第一方面或第一方面的任一可选的实现方式中的方法。
第十二方面，提供了一种包括指令的计算机程序产品，当所述计算机程序产品在计算机上运行时，使得该计算机执行上述第二方面或第二方面的任一可选的实现方式中的方法。
附图说明
图1是本申请实施例的一种应用场景的示意性架构图。
图2是本申请实施例的传输数据的方法的示意性流程图。
图3是本申请实施例的不同传输时间周期内的数据传输的示意图
图4是本申请实施例的传输数据的方法的示意性流程图。
图5是本申请实施例的网络设备的示意性框图。
图6是本申请实施例的终端设备的示意性框图。
图7是本申请实施例的网络设备的示意性结构图。
图8是本申请实施例的终端设备的示意性结构图。
图9是本申请实施例的系统芯片的示意性结构图。
具体实施方式
下面将结合附图，对本申请实施例中的技术方案进行描述。
应理解，本申请实施例的技术方案可以应用于各种通信系统，例如：全球移动通讯(Global System of Mobile Communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、长期演进(Long Term Evolution，LTE)系统、LTE频分双工(Frequency Division Duplex，FDD)系统、LTE时分双工(Time Division Duplex，TDD)、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、以及未来的5G通信系统等。
本申请结合终端设备描述了各个实施例。终端设备也可以指用户设备(User Equipment，UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，未来5G网络中的终端设备或者未来演进的陆上公用移动通信网(Public Land Mobile Network，PLMN)网络中的终端设备等。
本申请结合网络设备描述了各个实施例。网络设备可以是用于与终端设备进行通信的设备，例如，可以是GSM系统或CDMA中的基站(Base Transceiver Station，BTS)，也可以是WCDMA系统中的基站(NodeB，NB)，还可以是LTE系统中的演进型基站(Evolutional Node B，eNB或eNodeB)， 或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备以及未来5G网络中的网络侧设备或未来演进的PLMN网络中的网络侧设备等。
图1是本申请实施例的一个应用场景的示意图。图1中的通信系统可以包括网络设备10和终端设备20。网络设备10用于为终端设备20提供通信服务并接入核心网，终端设备20可以通过搜索网络设备10发送的同步信号、广播信号等而接入网络，从而进行与网络的通信。图1中所示出的箭头可以表示通过终端设备20与网络设备10之间的蜂窝链路进行的上/下行传输。
本申请实施例中的网络可以是指公共陆地移动网络(Public Land Mobile Network，PLMN)或者设备对设备(Device to Device，D2D)网络或者机器对机器/人(Machine to Machine/Man，M2M)网络或者其他网络，图1只是举例的简化示意图，网络中还可以包括其他终端设备，图1中未予以画出。
终端设备与网络设备之间进行数据传输所占用的频域资源以资源块组(Resource Block Group，RBG)为单位进行分配，每个RBG中包含了一组连续的资源块(Resource Block，RB)，RBG大小与系统带宽相关，例如表一所示的系统带宽与RBG大小之间的关系，不同系统带宽(System Bandwidth)中的RBG大小(RBG Size)是不同的。表一中的系统带宽是通过系统带宽中包括的RB的数目来表示的，RBG大小是通过每个RBG中包括的RB的数目来表示的。
表一
系统带宽 RBG大小
≤10 1
11-26 2
27-63 3
64-110 4
可以看出，随着系统带宽的变化，RBG大小也在变化，不同系统带宽下的RBG的数量就不同，因而网络设备需要1比特(bit)至28bit不等的比特图向终端设备指示传输带宽内的多个RBG中用于其进行数据传输的那些RBG，因而下行控制信息的大小就随时在变化，终端设备用于盲检该DCI的可能的负载(payload)的数量也有多种，导致终端设备盲检测的复杂度变高，并且延时和耗电量都会增加。
本申请实施例基于特定的参数确定当前传输带宽下所使用的RBG大小，并且在使用不同传输带宽时均使用相同大小的比特图进行RBG的指示，使得终端设备和网络设备能够灵活高效地确定RBG的大小，并降低盲检的复杂度。
图2是本申请实施例的传输数据的方法的示意性流程图。图2所示的方法可以由终端设备执行，该终端设备例如可以为图1中所示的终端设备20。如图2所示，该传输数据的方法包括：
在210中，终端设备根据特定参数M，以及终端设备所使用的传输带宽，确定该传输带宽下的资源块组RBG大小。
其中，M为正整数。M可以是一个固定值，即在任何传输条件下均相同；M也可以是随传输条件变化而变化的，不同传输条件例如使用不同基础参数集进行传输时使用不同的M值。本申请实施例中的特定参数M可以通过以下两种方式获得。
方式1
可选地，在终端设备根据特定参数M，以及终端设备所使用的传输带宽，确定所述传输带宽下的RBG大小之前，该方法还包括：终端设备根据所使用的基础参数集，确定与该基础参数集对应的M，其中，不同基础参数集对应不同的M。
该实施例中，终端设备可以根据自已所使用的基础参数集例如子载波间隔，以及多种基础参数集与多个M值之间的对应关系，确定与所使用的基础参数集对应的M的值。针对一种基础参数集使用相同的M值，例如表二所示，子载波间隔为15kHz时M＝35；子载波间隔为30kHz时M＝18；子载波间隔为60kHz时M＝9；子载波间隔为120kHz时M＝5；子载波间隔为240kHz时M＝3。
表二
子载波间隔 M的值
15kHz 35
30kHz 18
60kHz 9
120kH 5
240kHz 3
方式2
可选地，在终端设备根据特定参数M，以及终端设备所使用的传输带宽，确定所述传输带宽下的RBG大小之前，该方法还包括：终端设备接收网络设备发送的用于指示M的第一指示信息。
其中，可选地，该第一指示信息包括下行控制信息下行控制信息(Download Control Information，DCI)、无线资源控制(Radio Resource Control，RRC)信令、系统信息(System Information，SI)或媒体访问控制(Media Access Control，MAC)控制元素(Control Element，CE)。
终端设备在确定M之后，还需要知道自己在当前传输时间周期内能够使用的传输带宽。可选地，在210之前，该方法还包括：终端设备确定该传输带宽。
其中，该传输带宽可以小于或等于系统带宽，并且终端设备在不同传输时间周期内所使用的传输带宽可以不同。例如，终端设备在第一个时间周期T1中进行数据传输所使用的传输带宽为40kHz，而在下一个时间周期T2中进行数据传输所使用的传输带宽可以为80kHz。因而终端设备在不同的传输时间周期内，随着使用的传输带宽的不同，可以动态地调整RBG大小，从而实现灵活高效的资源分配。
可选地，终端设备确定该传输带宽，包括：终端设备接收网络设备发送的用于指示该传输带宽的第二指示信息。
其中，可选地，该第二指示信息包括DCI、RRC信令、系统信息SI或MAC CE。
在210中，终端设备获取M的值和所使用的传输带宽后，就可以根据M和该传输带宽，确定该传输带宽下的RBG大小。
可选地，该传输带宽等于W，该RBG大小等于S，S为预设的多个RBG大小中大于W/M的最小的RBG大小。
具体地说，终端设备根据特定参数M和所使用的传输带宽W，计算两者的比值W/M，并在候选的多个RBG大小中选择大于W/M的最小的RBG大小作为该传输带宽W下所使用的RBG大小。若多个RBG大小中大于W/M的最小的RBG大小等于S，那么该传输带宽W下所使用的RBG大小就等于S。
例如，假设M＝35，W＝220，候选的RBG大小有{1、2、4、8、16}，那 么S为{1、2、4、8、16}中大于220/35的最小的值即S＝8。假设M＝35，W＝55，候选的RBG大小有{1、2、4、8、16}，那么S为{1、2、4、8、16}中大于55/35的最小的值即S＝2。
应理解，这里的传输带宽是通过该传输带宽内包含的RB的数目来表示的，W＝220表示该传输带宽包括220个RB，W＝55表示该传输带宽包括55个RB。同样，RBG大小也可以通过一个RBG内包含的RB的数目来表示的，S＝8表示一个RBG包括8个RB，S＝2表示一个RBG包括2个RB。当然，传输带宽和RBG大小也可以通过其他方式来表示例如赫兹(Hz)或兆赫兹(MHz)等。
还应理解，终端设备可以根据传输带宽W和M，自行计算W/M并在多个RBG大小中选择大于W/M的最小的RBG大小作为该传输带宽下所使用的RBG大小；也可以根据该传输带宽W，以及多个传输带宽与多个RBG大小的对应关系，确定与该传输带宽W对应的该RBG大小。该多个传输带宽与多个RBG大小之间的该对应关系例如可以通过表格、公式、图像等方式来呈现，且该对应关系中，不同的传输带宽对应的RBG大小可以相同或不同。例如，终端设备可以通过查找包括多个传输带宽与多个RBG大小之间对应关系的表格，来确定与该传输带宽W对应的RBG大小S。本申请对此不做限定。
在220中，终端设备接收网络设备发送的承载在下行控制信息中的比特图。
其中，该比特图包含M个比特位。
这M个比特位中至少有N个比特位可以用于指示该传输带宽内的N个RBG中用于传输数据的目标RBG。通过这N个比特位上的值，终端设备可以在N个RBG中选择用于与网络设备之间传输该数据的那些RBG。
需要注意的是，根据特定参数M和传输带宽确定RBG大小，可以得到该传输带宽中包括的RBG的个数N。网络设备使用比特图的M个比特中的N个比特向终端设备指示该传输带宽中的N个RBG中哪些RBG是接收或发送数据的RBG。
之所以能够固定该比特图的比特数，使任何传输带宽下均使用包含M个比特的比特图进行RBG分配，是因为当候选的多个RBG大小覆盖较大的范围时，不同传输带宽下的RBG数量不会相差太大，都接近于M。这样， 比特图中的M个比特位的利用率N/M就比较高。而现有只存在预设的少数几个RBG大小，当传输带宽相差很大但是又使用相同RBG大小时，不同传输带宽中的RBG数量就相差很大，如果固定使用最大的RBG数量作为比特图包括的比特位的数量，那么比特图中的很大一部分比特位就浪费了。
在230中，终端设备根据该M个比特位中的N个比特位上的值，确定该传输带宽内的N个RBG中用于传输数据的目标RBG。
其中，该M个比特位中的N个比特位用于指示该传输带宽包括的N个RBG中用于传输数据的目标RBG，其中，N是根据所述传输带宽和所述RBG大小确定的，N为小于或等于M的正整数。
具体地说，终端设备通过网络设备发送的该比特图，来确定该传输带宽内的多个RBG中哪些RBG是用于数据传输的RBG。该比特图包括的比特位的个数等于M，且该M个比特位中有N个比特位用于指示该N个RBG中用于传输数据的目标RBG。剩余的M-N个比特位可以留空或者用于其他信号的传递。
这里的N与该传输带宽以及该传输带宽下的RBG大小相关。可选地，N等于
Figure PCTCN2017087630-appb-000005
其中
Figure PCTCN2017087630-appb-000006
为向上取整。N可以理解为RBG大小为S时，传输带宽W中包括的RBG的数量，因而比特图的M个比特位中的N个比特位用来指示这N个RBG中用于该终端设备进行数据传输的目标RBG。
在240中，终端设备在该目标RBG上与网络设备之间传输该数据。
例如，假设特定参数M＝9，传输带宽W＝42，RBG大小S＝8，
Figure PCTCN2017087630-appb-000007
比特图中包括9个比特位，这9个比特位中使用6个比特位进行RBG的分配。假设比特图中每个比特位上的值如表三所示，那么就可以表示该传输带宽中的前4个RBG(RBG标识分别为RBG#0、RBG#1、RBG#2和RBG#3)是用于与网络设备之间传输该数据的，其中每个RBG包括8个RB，于是终端设备接下来可以在RBG#0至RBG#3上向网络设备发送数据或者接收网络设备发送的数据。
表三
Figure PCTCN2017087630-appb-000008
因此，终端设备基于特定的参数确定当前传输带宽下所使用的RBG大小，并且在使用不同传输带宽时均使用相同大小的比特图进行RBG的指示，使得终端设备能够灵活高效地确定RBG大小，并降低盲检的复杂度。
终端设备根据特定参数和传输带宽灵活地确定该传输带宽下所使用的RBG大小，由于终端设备在不同传输带宽下所使用的RBG大小各不相同，即RBG大小随传输带宽的变化而变化，因而即使固定比特图为M个比特且使用其中的N个比特指示目标RBG，这M个比特的利用率(N/M)也较高。
下面结合表四至表十二，举例说明本申请实施例的传输数据的方法。其中，传输带宽W表示传输带宽中包括W个RB，RBG大小S表示RBG中包括S个RB。
表四为子载波间隔15kHz、M＝35时传输带宽、RBG大小、以及指示目标RBG的比特数N之间的关系。如表四所示，候选的RBG大小Si＝{1、2、4、8、16}，对于某个传输带宽Wi，采用大于Wi/35的最小的RBG大小作为该传输带宽Wi下的RBG大小Si。用于进行RBG分配的比特图包括35个比特，可以使用
Figure PCTCN2017087630-appb-000009
个比特进行RBG的分配，
Figure PCTCN2017087630-appb-000010
剩余的比特位可以留空或者用于其他用途。例如编号1对应的行中，传输带宽为5MHz即W1＝28时，{1、2、4、8、16}中大于28/35的最小的RBG大小S1＝1，
Figure PCTCN2017087630-appb-000011
编号2对应的行中，传输带宽为10MHz即W2＝55时，{1、2、4、8、16}中大于55/35的最小的RBG大小S2＝2，
Figure PCTCN2017087630-appb-000012
编号8对应的行中，传输带宽为70MHz即W8＝385时，{1、2、4、8、16}中大于385/35的最小的RBG大小S8＝16，
Figure PCTCN2017087630-appb-000013
表四
(子载波间隔15kHz、M＝35)
编号 传输带宽(MHz) 传输带宽(Wi) RBG大小(Si) Ni
1 5 W1＝28 S1＝1 N1＝28
2 10 W2＝55 S2＝2 N2＝28
3 20 W3＝110 S3＝4 N3＝28
4 30 W4＝165 S4＝8 N4＝21
5 40 W5＝220 S5＝8 N5＝28
6 50 W6＝275 S6＝8 N6＝35
7 60 W7＝330 S7＝16 N7＝21
8 70 W8＝385 S8＝16 N8＝25
9 80 W9＝440 S9＝16 N9＝28
10 90 W10＝495 S10＝16 N10＝31
11 100 W11＝550 S11＝16 N11＝35
终端设备在不同传输时间周期内所使用的传输带宽可以不同，例如图3所示的不同传输时间周期内的数据传输的示意图。终端设备设备在传输时间周期T1内的传输带宽为40MHz，即W5＝220，则根据表四，T1内的RBG大小S5＝8即一个RBG中包含8个RBG；该终端设备在传输时间周期T2内的传输带宽为80MHz，即W9＝440，则根据表四，T2内的RBG大小S9＝16即一个RBG中包含16个RBG。终端设备在不同的传输时间周期内，随着使用的传输带宽的不同，动态地调整RBG大小，从而实现灵活高效的资源分配。
可以看出，这里终端设备是根据特定参数M和传输带宽确定RBG大小，从而得到该传输带宽中包括的RBG的个数N。比特图的M个比特中有N个比特时用于指示该传输带宽的N个RBG中哪些RBG是接收或发送数据的RBG。任何传输带宽下均使用包含M个比特的比特图进行RBG分配。当候选的多个RBG大小覆盖较大的范围时，不同传输带宽下的RBG数量不会相差太大，都接近于M。例如表四最后一列中N的最小取值为21，最大取值为35。这样，比特图中的M个比特位的利用率N/M都比较高。而现有只存在预设的少数几个RBG大小，例如表一所示，当传输带宽为10时，RBG大小为1，需要10个比特进行指示。而当传输带宽为110时，RBG大小为4，需要28个比特进行指示。如果将比特图的大小固定为28个比特位，那么传输带宽为10时，该比特图的28个比特中仅有10个比特用于指示RBG，剩余的比特位就浪费了，比特位的利用率很低，因而无法固定比特图的位数。由于针对不同传输带宽发送的比特图的位数不断变化，这就增加了终端设备的盲检复杂度。
表五为子载波间隔30kHz、M＝35时传输带宽、RBG大小、以及指示目标RBG的比特数N之间的关系。如表五所示，候选的RBG大小Si＝{1、2、4、8}，对于某个传输带宽Wi，采用大于Wi/35的最小的RBG大小作为该 传输带宽Wi下的RBG大小Si。用于进行RBG分配的比特图包括35个比特，可以使用
Figure PCTCN2017087630-appb-000014
个比特进行RBG的分配，
Figure PCTCN2017087630-appb-000015
剩余的比特位可以留空或者用于其他用途。例如编号1对应的行中，传输带宽为5MHz即W1＝14时，{1、2、4、8}中大于14/35的最小的RBG大小S1＝1，
Figure PCTCN2017087630-appb-000016
编号2对应的行中，传输带宽为10MHz即W2＝28时，{1、2、4、8}中大于28/35的最小的RBG大小S2＝1，
Figure PCTCN2017087630-appb-000017
编号7对应的行中，传输带宽为60MHz即W7＝165时，{1、2、4、8}中大于165/35的最小的RBG大小S7＝8，
Figure PCTCN2017087630-appb-000018
表五
(子载波间隔30kHz、M＝35)
编号 传输带宽(MHz) 传输带宽(W) RBG大小(S) N
1 5 W1＝14 S1＝1 N1＝14
2 10 W2＝28 S2＝1 N2＝28
3 20 W3＝55 S3＝2 N3＝28
4 30 W4＝83 S4＝4 N4＝21
5 40 W5＝110 S5＝4 N5＝28
6 50 W6＝138 S6＝4 N6＝35
7 60 W7＝165 S7＝8 N7＝21
8 70 W8＝193 S8＝8 N8＝25
9 80 W9＝220 S9＝8 N9＝28
10 90 W10＝248 S10＝8 N10＝31
11 100 W11＝275 S11＝8 N11＝35
根据表四和表五可以看出，子载波间隔不同时，可以规定使用相同的M值(均为35)。或者还可以如表六所示，子载波间隔不同时使用不同的M值。
表六为子载波间隔30kHz、M＝18时传输带宽、RBG大小、以及指示目标RBG的比特数N之间的关系。如表六所示，候选的RBG大小Si＝{1、2、4、8、16}，对于某个传输带宽Wi，采用大于Wi/18的最小的RBG大小作为该传输带宽Wi下的RBG大小Si。用于进行RBG分配的比特图包括18个比特，可以使用
Figure PCTCN2017087630-appb-000019
个比特进行RBG的分配，
Figure PCTCN2017087630-appb-000020
剩余的比特 位可以留空或者用于其他用途。例如编号1对应的行中，传输带宽为5MHz即W1＝14时，{1、2、4、8、16}中大于14/18的最小的RBG大小S1＝1，
Figure PCTCN2017087630-appb-000021
编号2对应的行中，传输带宽为10MHz即W2＝28时，{1、2、4、8、16}中大于28/18的最小的RBG大小S2＝2，
Figure PCTCN2017087630-appb-000022
编号8对应的行中，传输带宽为70MHz即W8＝193时，{1、2、4、8、16}中大于193/18的最小的RBG大小S8＝16，
Figure PCTCN2017087630-appb-000023
表六
(子载波间隔30kHz、M＝18)
编号 传输带宽(MHz) 传输带宽(W) RBG大小(S) N
1 5 W1＝14 S1＝1 N1＝14
2 10 W2＝28 S2＝2 N2＝14
3 20 W3＝55 S3＝4 N3＝14
4 30 W4＝83 S4＝8 N4＝11
5 40 W5＝110 S5＝8 N5＝14
6 50 W6＝138 S6＝8 N6＝318
7 60 W7＝165 S7＝16 N7＝11
8 70 W8＝193 S8＝16 N8＝13
9 80 W9＝220 S9＝16 N9＝14
10 90 W10＝248 S10＝16 N10＝16
11 100 W11＝275 S11＝16 18
根据表四和表六可以看出，子载波间隔为15kHz时M＝35，子载波间隔为30kHz时M＝18，不同子载波间隔对应的M值不同，当子载波间隔由15kHz变为30kHz时，可以适当减小M值，通过减小比特图中比特位的数量，进一步降低下行控制信令的开销。终端设备确定比特图的大小变为18bit后，就可以按照18bit的比特图进行下行控制信令的盲检而不按35bit的比特图进行下行控制信令的盲检，同样不会增加终端设备的盲检复杂度。
表七为子载波间隔60kHz、M＝35时传输带宽、RBG大小、以及指示目标RBG的比特数N之间的关系。如表七所示，候选的RBG大小Si＝{1、2、4}，对于某个传输带宽Wi，采用大于Wi/35的最小的RBG大小作为该传输 带宽Wi下的RBG大小Si。用于进行RBG分配的比特图包括35个比特，可以使用
Figure PCTCN2017087630-appb-000024
个比特进行RBG的分配，
Figure PCTCN2017087630-appb-000025
剩余的比特位可以留空或者用于其他用途。例如编号1对应的行中，传输带宽为5MHz即W1＝7时，{1、2、4}中大于7/35的最小的RBG大小S1＝1，
Figure PCTCN2017087630-appb-000026
编号4对应的行中，传输带宽为30MHz即W4＝42时，{1、2、4}中大于42/35的最小的RBG大小S4＝2，
Figure PCTCN2017087630-appb-000027
编号7对应的行中，传输带宽为60MHz即W7＝83时，{1、2、4}中大于83/35的最小的RBG大小S7＝4，
Figure PCTCN2017087630-appb-000028
表七
(子载波间隔60kHz、M＝35)
编号 传输带宽(MHz) 传输带宽(W) RBG大小(S) N
1 5 W1＝7 S1＝1 N1＝7
2 10 W2＝14 S2＝1 N2＝14
3 20 W3＝28 S3＝1 N3＝28
4 30 W4＝42 S4＝2 N4＝21
5 40 W5＝55 S5＝2 N5＝28
6 50 W6＝69 S6＝2 N6＝35
7 60 W7＝83 S7＝4 N7＝21
8 70 W8＝97 S8＝4 N8＝25
9 80 W9＝110 S9＝4 N9＝28
10 90 W10＝124 S10＝4 N10＝31
11 100 W11＝138 S11＝4 N11＝35
根据表四、表五和表七可以看出，子载波间隔不同时，可以规定使用相同的M值(均为35)。或者如表八所示，子载波间隔不同时使用不同的M值。
表八为子载波间隔60kHz、M＝9时传输带宽、RBG大小、以及指示目标RBG的比特数N之间的关系。如表八所示，候选的RBG大小Si＝{1、2、4、8、16}，对于某个传输带宽Wi，采用大于Wi/9的最小的RBG大小作为该传输带宽Wi下的RBG大小Si。用于进行RBG分配的比特图包括9个比特，可以使用
Figure PCTCN2017087630-appb-000029
个比特进行RBG的分配，
Figure PCTCN2017087630-appb-000030
剩余的比特位 可以留空或者用于其他用途。例如编号1对应的行中，传输带宽为5MHz即W1＝7时，{1、2、4、8、16}中大于7/9的最小的RBG大小S1＝1，
Figure PCTCN2017087630-appb-000031
编号2对应的行中，传输带宽为10MHz即W2＝14时，{1、2、4、8、16}中大于14/9的最小的RBG大小S2＝2，
Figure PCTCN2017087630-appb-000032
编号7对应的行中，传输带宽为60MHz即W7＝83时，{1、2、4、8、16}中大于83/9的最小的RBG大小S7＝16，
Figure PCTCN2017087630-appb-000033
表八
(子载波间隔60kHz、M＝9)
编号 传输带宽(MHz) 传输带宽(W) RBG大小(S) N
1 5 W1＝7 S1＝1 N1＝7
2 10 W2＝14 S2＝2 N2＝7
3 20 W3＝28 S3＝4 N3＝7
4 30 W4＝42 S4＝8 N4＝6
5 40 W5＝55 S5＝8 N5＝7
6 50 W6＝69 S6＝8 N6＝9
7 60 W7＝83 S7＝16 N7＝6
8 70 W8＝97 S8＝16 N8＝7
9 80 W9＝110 S9＝16 N9＝7
10 90 W10＝124 S10＝16 N10＝8
11 100 W11＝138 S11＝16 N11＝9
根据表四、表六和表八可以看出，子载波间隔为15kHz时M＝35，子载波间隔为30kHz时M＝18，子载波间隔为60kHz时M＝9，不同子载波间隔对应的M值不同，当子载波间隔由15kHz或30kHz变为60kHz时，可以适当减小M值，通过减小比特图中比特位的数量，进一步降低下行控制信令的开销。终端设备确定比特图的大小变为9bit后，就可以按照9bit的比特图进行下行控制信令的盲检而不按35bit的比特图进行下行控制信令的盲检，同样不会增加终端设备的盲检复杂度。
表九为子载波间隔120kHz、M＝35时传输带宽、RBG大小、以及指示目标RBG的比特数N之间的关系。如表九所示，候选的RBG大小Si＝{1、2}，对于某个传输带宽Wi，采用大于Wi/35的最小的RBG大小作为该传输 带宽Wi下的RBG大小Si。用于进行RBG分配的比特图包括35个比特，可以使用
Figure PCTCN2017087630-appb-000034
个比特进行RBG的分配，
Figure PCTCN2017087630-appb-000035
剩余的比特位可以留空或者用于其他用途。例如编号1对应的行中，传输带宽为5MHz即W1＝4时，{1、2}中大于4/35的最小的RBG大小S1＝1，
Figure PCTCN2017087630-appb-000036
编号7对应的行中，传输带宽为60MHz即W7＝42时，{1、2}中大于42/35的最小的RBG大小S7＝2，
Figure PCTCN2017087630-appb-000037
表九
(子载波间隔120kHz、M＝35)
编号 传输带宽(MHz) 传输带宽(W) RBG大小(S) N
1 5 W1＝4 S1＝1 N1＝4
2 10 W2＝7 S2＝1 N2＝7
3 20 W3＝14 S3＝1 N3＝14
4 30 W4＝21 S4＝1 N4＝21
5 40 W5＝28 S5＝1 N5＝28
6 50 W6＝35 S6＝1 N6＝35
7 60 W7＝42 S7＝2 N7＝21
8 70 W8＝49 S8＝2 N8＝25
9 80 W9＝55 S9＝2 N9＝28
10 90 W10＝62 S10＝2 N10＝31
11 100 W11＝69 S11＝2 N11＝35
根据表四、表五、表七和表九可以看出，子载波间隔不同时，可以规定使用相同的M值(均为35)。或者如表十所示，子载波间隔不同时使用不同的M值。
表十为子载波间隔120kHz、M＝5时传输带宽、RBG大小、以及指示目标RBG的比特数N之间的关系。如表十所示，候选的RBG大小Si＝{1、2、4、8、16}，对于某个传输带宽Wi，采用大于Wi/5的最小的RBG大小作为该传输带宽Wi下的RBG大小Si。用于进行RBG分配的比特图包括5个比特，可以使用
Figure PCTCN2017087630-appb-000038
个比特进行RBG的分配，
Figure PCTCN2017087630-appb-000039
剩余的比特位可以留空或者用于其他用途。例如编号1对应的行中，传输带宽为5MHz即W1＝4时，{1、2、4、8、16}中大于4/5的最小的RBG大小S1＝1，
Figure PCTCN2017087630-appb-000040
编号3对应的行中，传输带宽为20MHz即W3＝14时，{1、2、4、8、16}中大于14/5的最小的RBG大小S2＝4，
Figure PCTCN2017087630-appb-000041
编号7对应的行中，传输带宽为60MHz即W7＝42时，{1、2、4、8、16}中大于42/5的最小的RBG大小S7＝16，
Figure PCTCN2017087630-appb-000042
表十
(子载波间隔120kHz、M＝5)
编号 传输带宽(MHz) 传输带宽(W) RBG大小(S) N
1 5 W1＝4 S1＝1 N1＝4
2 10 W2＝7 S2＝2 N2＝4
3 20 W3＝14 S3＝4 N3＝4
4 30 W4＝21 S4＝8 N4＝3
5 40 W5＝28 S5＝8 N5＝4
6 50 W6＝35 S6＝8 N6＝5
7 60 W7＝42 S7＝16 N7＝3
8 70 W8＝49 S8＝16 N8＝4
9 80 W9＝55 59＝16 N9＝4
10 90 W10＝62 S10＝16 N10＝4
11 100 W11＝69 S11＝16 N11＝5
根据表四、表六、表八和表十可以看出，子载波间隔为15kHz时M＝35，子载波间隔为30kHz时M＝18，子载波间隔为60kHz时M＝9，子载波间隔为120kHz时M＝5，不同子载波间隔对应的M值不同，当子载波间隔由15kHz、30kHz或60kHz变为120kHz时，可以适当减小M值，通过减小比特图中比特位的数量，进一步降低下行控制信令的开销。终端设备确定比特图的大小变为5bit后，就可以按照5bit的比特图进行下行控制信令的盲检而不按35bit的比特图进行下行控制信令的盲检，同样不会增加终端设备的盲检复杂度。
表十一为子载波间隔240kHz、M＝35时传输带宽、RBG大小、以及指示目标RBG的比特数N之间的关系。如表十一所示，候选的RBG大小Si＝{1}，对于某个传输带宽Wi，采用大于Wi/35的最小的RBG大小作为该传输带宽Wi下的RBG大小Si。用于进行RBG分配的比特图包括35个比特，可以使用
Figure PCTCN2017087630-appb-000043
个比特进行RBG的分配，
Figure PCTCN2017087630-appb-000044
剩余的比特位可以 留空或者用于其他用途。例如编号1对应的行中，传输带宽为5MHz即W1＝2时，S1＝1，
Figure PCTCN2017087630-appb-000045
编号7对应的行中，传输带宽为60MHz即W7＝21时，S7＝1，
Figure PCTCN2017087630-appb-000046
表十一
(子载波间隔240kHz、M＝35)
编号 传输带宽(MHz) 传输带宽(W) RBG大小(S) N
1 5 W1＝2 S1＝1 N1＝2
2 10 W2＝4 S2＝1 N2＝4
3 20 W3＝7 S3＝1 N3＝17
4 30 W4＝11 S4＝1 N4＝11
5 40 W5＝14 S5＝1 N5＝14
6 50 W6＝18 S6＝1 N6＝18
7 60 W7＝21 S7＝1 N7＝21
8 70 W8＝25 S8＝1 N8＝25
9 80 W9＝28 S9＝1 N9＝28
10 90 W10＝31 S10＝1 N10＝31
11 100 W11＝35 S11＝1 N11＝35
根据表四、表五、表七、表九和十一可以看出，子载波间隔不同时，可以规定使用相同的M值(均为35)。或者如表十所示，子载波间隔不同时使用不同的M值。
表十二为子载波间隔240kHz、M＝3时传输带宽、RBG大小、以及指示目标RBG的比特数N之间的关系。如表十二所示，候选的RBG大小Si＝{1、2、4、8、16}，对于某个传输带宽Wi，采用大于Wi//3的最小的RBG大小作为该传输带宽Wi下的RBG大小Si。用于进行RBG分配的比特图包括3个比特，可以使用
Figure PCTCN2017087630-appb-000047
个比特进行RBG的分配，
Figure PCTCN2017087630-appb-000048
剩余的比特位可以留空或者用于其他用途。例如编号1对应的行中，传输带宽为5MHz即W1＝2时，{1、2、4、8、16}中大于2/3的最小的RBG大小S1＝1，
Figure PCTCN2017087630-appb-000049
编号4对应的行中，传输带宽为30MHz即W4＝11时，{1、2、4、8、16}中大于11/3的最小的RBG大小S4＝4，
Figure PCTCN2017087630-appb-000050
编号7对应的行中，传输带宽为60MHz即W7＝21时，{1、2、4、8、16}中 大于21/3的最小的RBG大小S7＝8，
Figure PCTCN2017087630-appb-000051
表十二
(子载波间隔240kHz、M＝3)
编号 传输带宽(MHz) 传输带宽(W) RBG大小(S) N
1 5 W1＝2 S1＝1 N1＝2
2 10 W2＝3 S2＝2 N2＝2
3 20 W3＝7 S3＝4 N3＝2
4 30 W4＝11 S4＝4 N4＝3
5 40 W5＝14 S5＝8 N5＝2
6 50 W6＝18 S6＝8 N6＝3
7 60 W7＝21 S7＝8 N7＝3
8 70 W8＝25 S8＝16 N8＝2
9 80 W9＝28 S9＝16 N9＝2
10 90 W10＝31 S10＝16 N10＝2
11 100 W11＝35 S11＝16 N11＝3
根据表四、表六、表八、表十和表十二可以看出，子载波间隔为15kHz时M＝35，子载波间隔为30kHz时M＝18，子载波间隔为60kHz时M＝9，子载波间隔为120kHz时M＝5，子载波间隔为240kHz时M＝3，不同子载波间隔对应的M值不同，当子载波间隔由15kHz、30kHz、60kHz或120kHz变为240kHz时，可以适当减小M值，通过减小比特图中比特位的数量，进一步降低下行控制信令的开销。终端设备确定比特图的大小变为3bit后，就可以按照3bit的比特图进行下行控制信令的盲检而不按35bit的比特图进行下行控制信令的盲检，同样不会增加终端设备的盲检复杂度。
5G NR系统中的传输带宽将大幅提高(例如高达100MHz)，RB的数量可达550个，因而需要更灵活对频域资源进行分配，因此需要更多样的RBG大小。但如果按照LTE的设计方法，将造成用于资源分配的比特图的尺寸变化更太频繁，用于承载资源分配信息的下行控制信息的大小也变化频繁，终端设备或网络设备盲检测DCI时的可能负载(payload)的数量也有太多可能性，导致盲检测的复杂度、延时和耗电都将大幅增加。
本申请实施例提出基于特定参数确定当前传输带宽下所使用的RBG大 小，并且针对不同传输带宽时均使用相同大小的比特图进行RBG的指示，使得终端设备能够灵活高效地确定RBG的大小，并降低盲检的复杂度。
图4是本申请实施例的传输数据的方法的示意性流程图。图4所示的方法可以由网络设备执行，该终端设备例如可以为图1中所示的网络设备10。如图4所示，该传输数据的方法包括：
在410中，网络设备根据特定参数M，以及与终端设备进行数据传输所使用的传输带宽，确定该传输带宽下的资源块组RBG大小。
其中，M为正整数。M可以是一个固定值，即在任何传输条件下均相同；M也可以是随传输条件变化而变化的，不同传输条件例如使用不同基础参数集进行传输时使用不同的M值。
可选地，在网络设备根据特定参数M，以及与终端设备进行数据传输所使用的传输带宽，确定该传输带宽下的RBG大小之前，该方法还包括：网络设备根据所使用的基础参数集，确定与该基础参数集对应的M，其中，不同基础参数集对应不同的M。
该实施例中，网络设备可以根据所使用的基础参数集例如子载波间隔，以及多种基础参数集与多个M值之间的对应关系，确定与所使用的基础参数集对应的M的值。针对一种基础参数集使用相同的M值，例如子载波间隔为15kHz时M＝35；子载波间隔为30kHz时M＝18；子载波间隔为60kHz时M＝9；子载波间隔为120kHz时M＝5；子载波间隔为240kHz时M＝3。
可选地，该方法还包括：网络设备向终端设备发送用于指示M的第一指示信息。
其中，可选地，该第一指示信息包括下行控制信息、无限资源控制RRC信令、系统信息SI或媒体访问控制元素MAC CE。
网络设备在确定M之后，还需要知道当前传输时间周期内用于与该终端设备进行数据传输的传输带宽。可选地，在网络设备根据特定参数M，以及终端设备所使用的传输带宽，确定该传输带宽下的RBG大小之前，该方法还包括：网络设备确定该传输带宽。
其中，该传输带宽可以小于或等于系统带宽，并且网络设备在不同传输时间周期内与该终端设备进行数据传输所使用的传输带宽不同。例如，终端设备在第一个时间周期T1中进行数据传输所使用的传输带宽为40kHz，而在下一个时间周期T2中进行数据传输所使用的传输带宽可以为80kHz。因 而终端设备在不同的传输时间周期内，随着使用的传输带宽的不同，可以动态地调整RBG大小，从而实现灵活高效的资源分配。
可选地，该方法还包括：网络设备向终端设备发送用于指示该传输带宽的第二指示信息。
其中，可选地，该第二指示信息包括DCI、RRC信令、系统信息SI或MAC CE。
在410中，网络设备确定M的值和所使用的传输带宽后，就可以根据M和该传输带宽，确定该传输带宽下的RBG大小。
可选地，该传输带宽等于W，该RBG大小等于S，S为预设的多个RBG大小中大于W/M的最小的RBG大小。
具体地说，网络设备可以根据特定参数M和所使用的传输带宽W，计算两者的比值W/M，并在候选的多个RBG大小中选择大于W/M的最小的RBG大小作为该传输带宽W下所使用的RBG大小。若多个RBG大小中大于W/M的最小的RBG大小等于S，那么该传输带宽W下所使用的RBG大小就等于S。
网络设备可以根据传输带宽W和M，自行计算W/M并在多个RBG大小中选择大于W/M的最小的RBG大小作为该传输带宽下所使用的RBG大小；也可以根据该传输带宽W，以及多个传输带宽与多个RBG大小的对应关系，确定与该传输带宽W对应的该RBG大小。该多个传输带宽与多个RBG大小之间的该对应关系例如可以通过表格、公式、图像等方式来呈现，且该对应关系中，不同的传输带宽对应的RBG大小可以相同或不同。例如，终端设备可以通过查找包括多个传输带宽与多个RBG大小之间对应关系的表格，来确定与该传输带宽W对应的RBG大小S。本申请对此不做限定。
在420中，网络设备在该传输带宽内的N个RBG中，确定用于传输数据的目标RBG。
其中，N是根据所述传输带宽和所述RBG大小确定的，N为小于或等于M的正整数。
这里的N与该传输带宽以及该传输带宽下的RBG大小相关。可选地，N等于
Figure PCTCN2017087630-appb-000052
其中
Figure PCTCN2017087630-appb-000053
为向上取整。N可以理解为RBG大小为S时，传输带宽W中包括的RBG的数量。
在430中，网络设备根据该目标RBG生成比特图，该比特图包含M个 比特位，该M个比特位中的N个比特位上的值用于指示所述目标RBG。
具体地说，网络设备在N个RBG中确定用于传输数据的目标RBG后，可以通过比特图的方式向终端设备指示该目标RBG。比特图包括M个比特位，这M个比特位中的N个比特位上的值可以用来表示N个RBG中的哪些RBG可以用于与该终端设备质之间进行数据传输。
在440中，网络设备向终端设备发送承载在下行控制信息中的比特图。
其中，该M个比特位中的N个比特位用于指示该传输带宽包括的N个RBG中用于传输数据的目标RBG，N是根据该传输带宽和该RBG大小确定的。
具体地说，网络设备通过向终端设备发送该比特图，来指示终端设备在该传输带宽下的多个RBG中的哪些RBG上进行数据传输。该比特图包括的比特位的个数等于M，且该M个比特位中有至少N个比特位可以用于指示该传输带宽内的N个RBG中用于与终端设备之间传输数据的目标RBG。剩余的M-N个比特位可以留空或者用于其他信号的传递。
N可以理解为RBG大小为S时，传输带宽W中包括的RBG的数量。因而比特图的M个比特位中的N个比特位用来指示这N个RBG中用于该终端设备进行数据传输的目标RBG。
在450中，网络设备在该目标RBG上与终端设备之间传输该数据。
应理解，网络设备确定RBG大小并基于该RBG大小和比特图进行数据传输的过程具体可以参考前述图2中对终端设备的描述，为了简洁，这里不再赘述。
本申请实施例中，网络设备基于特定的参数确定当前传输带宽下所使用的RBG大小，并且在使用不同传输带宽时均使用相同大小的比特图进行RBG的指示，使得网络设备能够灵活高效地确定RBG大小，并降低盲检的复杂度。
网络设备根据特定参数和传输带宽灵活地确定该传输带宽下所使用的RBG大小，由于网络设备在不同传输带宽下所使用的RBG大小各不相同，即RBG大小随传输带宽的变化而变化，因而即使固定比特图为M个比特且使用其中的N个比特指示目标RBG，这M个比特的利用率(N/M)也较高。
应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应 对本申请实施例的实施过程构成任何限定。
图5是根据本申请实施例的终端设备500的示意性框图。如图5所示，该终端设备500包括确定单元510和传输单元520。其中：
确定单元510用于，根据特定参数M，以及所述终端设备所使用的传输带宽，确定所述传输带宽下的资源块组RBG大小，M为正整数；
传输单元520用于，接收网络设备发送的承载在下行控制信息中的比特图，所述比特图包含M个比特位；
确定单元510还用于，根据所述M个比特位中的N个比特位上的值，确定所述传输带宽内的N个RBG中用于传输数据的目标RBG，其中，N是根据所述传输带宽和所述RBG大小确定的，N为小于或等于M的正整数；
传输单元520还用于，在所述目标RBG上与所述网络设备之间传输所述数据。
因此，终端设备基于特定的参数确定当前传输带宽下所使用的RBG大小，并且在使用不同传输带宽时均使用相同大小的比特图进行RBG的指示，使得终端设备能够灵活高效地确定RBG的大小，并降低盲检的复杂度。
可选地，所述传输带宽等于W，所述RBG大小等于S，S为预设的多个RBG大小中大于W/M的最小的RBG大小。
可选地，N等于
Figure PCTCN2017087630-appb-000054
其中
Figure PCTCN2017087630-appb-000055
为向上取整。
可选地，所述确定单元510还用于：根据所使用的基础参数集，确定与所述基础参数集对应的M，其中，不同基础参数集对应不同的M。
可选地，所述传输单元520还用于：接收所述网络设备发送的用于指示M的第一指示信息，所述第一指示信息包括下行控制信息DCI、无线资源控制RRC信令、系统信息SI或媒体访问控制元素MAC CE。
可选地，所述确定单元510还用于：确定所述传输带宽，其中，所述终端设备在不同传输时间周期内使用的传输带宽不同。
可选地，所述确定单元510具体用于：通过所述传输单元520接收所述网络设备发送的用于指示所述传输带宽的第二指示信息，所述第二指示信息包括DCI、RRC信令、系统信息SI或MAC CE。
图6是根据本申请实施例的网络设备600的示意性框图。如图6所示，该网络设备600包括确定单元610、处理单元620和传输单元630。其中：
确定单元610用于，根据特定参数M，以及与终端设备进行数据传输所 使用的传输带宽，确定所述传输带宽下的资源块组RBG大小，M为正整数；
确定单元610还用于，在所述传输带宽内的N个RBG中，确定用于传输数据的目标RBG，其中，N是根据所述传输带宽和所述RBG大小确定的，N为小于或等于M的正整数；
处理单元620用于，根据所述目标RBG生成比特图，所述比特图包含M个比特位，所述M个比特位中的N个比特位上的值用于指示所述目标RBG；
传输单元630用于，向所述终端设备发送承载在下行控制信息中的所述比特图；
传输单元630还用于，在所述目标RBG上与所述终端设备之间传输所述数据。
因此，网络设备基于特定的参数确定当前传输带宽下所使用的RBG大小，并且在使用不同传输带宽时均使用相同大小的比特图进行RBG的指示，使得网络设备能够灵活高效地确定RBG的大小，并降低盲检的复杂度。
可选地，所述传输带宽等于W，所述RBG大小等于S，S为预设的多个RBG大小中大于W/M的最小的RBG大小。
可选地，N等于
Figure PCTCN2017087630-appb-000056
其中
Figure PCTCN2017087630-appb-000057
为向上取整。
可选地，所述确定单元610还用于：根据所使用的基础参数集，确定与所述基础参数集对应的M，其中，不同基础参数集对应不同的M。
可选地，所述传输单元630还用于：向所述终端设备发送用于指示M的第一指示信息，所述第一指示信息包括下行控制信息DCI、无线资源控制RRC信令、系统信息SI或媒体访问控制元素MAC CE。
可选地，所述确定单元610还用于：确定所述传输带宽，其中，所述网络设备在不同传输时间周期内与所述终端设备进行数据传输所使用的传输带宽不同。
可选地，所述传输单元630还用于：向所述终端设备发送用于指示所述传输带宽的第二指示信息，所述第二指示信息包括DCI、RRC信令、系统信息SI或MAC CE。
图7是根据本申请实施例的终端设备700的示意性结构图。如图7所示，该终端设备包括处理器710、收发器720和存储器730，其中，该处理器710、收发器720和存储器730之间通过内部连接通路互相通信。该存储器730用 于存储指令，该处理器710用于执行该存储器730存储的指令，以控制该收发器720接收信号或发送信号。
其中，该处理器710用于，根据特定参数M，以及所述终端设备所使用的传输带宽，确定所述传输带宽下的资源块组RBG大小，M为正整数；
该收发器720用于，接收网络设备发送的承载在下行控制信息中的比特图，所述比特图包含M个比特位；
该处理器710还用于，根据所述M个比特位中的N个比特位上的值，确定所述传输带宽内的N个RBG中用于传输数据的目标RBG，其中，N是根据所述传输带宽和所述RBG大小确定的，N为小于或等于M的正整数；
该收发器720还用于，在所述目标RBG上与所述网络设备之间传输所述数据。
因此，终端设备基于特定的参数确定当前传输带宽下所使用的RBG大小，并且在使用不同传输带宽时均使用相同大小的比特图进行RBG的指示，使得终端设备能够灵活高效地确定RBG的大小，并降低盲检的复杂度。
可选地，所述传输带宽等于W，所述RBG大小等于S，S为预设的多个RBG大小中大于W/M的最小的RBG大小。
可选地，N等于
Figure PCTCN2017087630-appb-000058
其中
Figure PCTCN2017087630-appb-000059
为向上取整。
可选地，所述处理器710还用于：根据所使用的基础参数集，确定与所述基础参数集对应的M，其中，不同基础参数集对应不同的M。
可选地，所述收发器720还用于：接收所述网络设备发送的用于指示M的第一指示信息，所述第一指示信息包括下行控制信息DCI、无线资源控制RRC信令、系统信息SI或媒体访问控制元素MAC CE。
可选地，所述处理器710还用于：确定所述传输带宽，其中，所述终端设备在不同传输时间周期内使用的传输带宽不同。
可选地，所述处理器710具体用于：通过所述收发器720接收所述网络设备发送的用于指示所述传输带宽的第二指示信息，所述第二指示信息包括DCI、RRC信令、系统信息SI或MAC CE。
应理解，在本申请实施例中，该处理器710可以是中央监测单元(Central Processing Unit，CPU)，该处理器710还可以是其他通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现成可编程门阵列(Field Programmable Gate Array， FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
该存储器730可以包括只读存储器和随机存取存储器，并向处理器710提供指令和数据。存储器730的一部分还可以包括非易失性随机存取存储器。
在实现过程中，上述方法的各步骤可以通过处理器710中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的定位方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器710中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器730，处理器710读取存储器730中的信息，结合其硬件完成上述方法的步骤。为避免重复，这里不再详细描述。
根据本申请实施例的终端设备700可以对应于上述方法200中用于执行方法200的终端设备，以及根据本申请实施例的终端设备500，且该终端设备700中的各单元或模块分别用于执行上述方法100中终端设备所执行的各动作或处理过程，这里，为了避免赘述，省略其详细说明。
图8是根据本申请实施例的网络设备800的示意性结构图。如图8所示，该网络设备包括处理器810、收发器820和存储器830，其中，该处理器810、收发器820和存储器830之间通过内部连接通路互相通信。该存储器830用于存储指令，该处理器810用于执行该存储器830存储的指令，以控制该收发器820接收信号或发送信号。
其中，该处理器810用于，根据特定参数M，以及与终端设备进行数据传输所使用的传输带宽，确定所述传输带宽下的资源块组RBG大小，M为正整数；
该处理器810还用于，在所述传输带宽内的N个RBG中，确定用于传输数据的目标RBG，其中，N是根据所述传输带宽和所述RBG大小确定的，N为小于或等于M的正整数；
该处理器810还用于，根据所述目标RBG生成比特图，所述比特图包含M个比特位，所述M个比特位中的N个比特位上的值用于指示所述目标RBG；
该收发器820还用于，向所述终端设备发送承载在下行控制信息中的所 述比特图；
该收发器820还用于，在所述目标RBG上与所述终端设备之间传输所述数据。
因此，网络设备基于特定的参数确定当前传输带宽下所使用的RBG大小，并且在使用不同传输带宽时均使用相同大小的比特图进行RBG的指示，使得网络设备能够灵活高效地确定RBG的大小，并降低盲检的复杂度。
可选地，所述传输带宽等于W，所述RBG大小等于S，S为预设的多个RBG大小中大于W/M的最小的RBG大小。
可选地，N等于
Figure PCTCN2017087630-appb-000060
其中
Figure PCTCN2017087630-appb-000061
为向上取整。
可选地，所述处理器810还用于：根据所使用的基础参数集，确定与所述基础参数集对应的M，其中，不同基础参数集对应不同的M。
可选地，所述收发器820还用于：向所述终端设备发送用于指示M的第一指示信息，所述第一指示信息包括下行控制信息DCI、无线资源控制RRC信令、系统信息SI或媒体访问控制元素MAC CE。
可选地，所述处理器810还用于：确定所述传输带宽，其中，所述网络设备在不同传输时间周期内与所述终端设备进行数据传输所使用的传输带宽不同。
可选地，所述收发器820还用于：向所述终端设备发送用于指示所述传输带宽的第二指示信息，所述第二指示信息包括DCI、RRC信令、系统信息SI或MAC CE。
应理解，在本申请实施例中，该处理器810可以是中央监测单元(Central Processing Unit，CPU)，该处理器810还可以是其他通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现成可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
该存储器830可以包括只读存储器和随机存取存储器，并向处理器810提供指令和数据。存储器830的一部分还可以包括非易失性随机存取存储器。在实现过程中，上述方法的各步骤可以通过处理器810中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的定位方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器810中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编 程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器830，处理器810读取存储器830中的信息，结合其硬件完成上述方法的步骤。为避免重复，这里不再详细描述。
根据本申请实施例的网络设备800可以对应于上述方法400中用于执行方法400的网络设备，以及根据本申请实施例的网络设备600，且该网络设备800中的各单元或模块分别用于执行上述方法400中网络设备所执行的各动作或处理过程，这里，为了避免赘述，省略其详细说明。
图9是本申请实施例的系统芯片的一个示意性结构图。图9的系统芯片900包括输入接口901、输出接口902、至少一个处理器903、存储器904，所述输入接口901、输出接口902、所述处理器903以及存储器904之间通过内部连接通路互相连接。所述处理器903用于执行所述存储器904中的代码。
可选地，当所述代码被执行时，所述处理器903可以实现方法实施例中由终端设备执行的方法200。为了简洁，这里不再赘述。
可选地，当所述代码被执行时，所述处理器903可以实现方法实施例中由网络设备执行的方法400。为了简洁，这里不再赘述。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
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，上述描述的系统、装置和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。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、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，该单元的划分，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。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
该作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个监测单元中，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。
该功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上，仅为本申请的具体实施方式，但本申请实施例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申请实施例揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请适合私利的保护范围之内。因此，本申请实施例的保护范围应该以权利要求的保护范围为准。

Claims (28)

  1. 一种传输数据的方法，其特征在于，所述方法包括：
    终端设备根据特定参数M，以及所述终端设备所使用的传输带宽，确定所述传输带宽下的资源块组RBG大小，M为正整数；
    所述终端设备接收网络设备发送的承载在下行控制信息中的比特图，所述比特图包含M个比特位；
    所述终端设备根据所述M个比特位中的N个比特位上的值，确定所述传输带宽内的N个RBG中用于传输数据的目标RBG，其中，N是根据所述传输带宽和所述RBG大小确定的，N为小于或等于M的正整数；
    所述终端设备在所述目标RBG上与所述网络设备之间传输所述数据。
  2. 根据权利要求1所述的方法，其特征在于，所述传输带宽等于W，所述RBG大小等于S，S为预设的多个RBG大小中大于W/M的最小的RBG大小。
  3. 根据权利要求1或2所述的方法，其特征在于，N等于
    Figure PCTCN2017087630-appb-100001
    其中
    Figure PCTCN2017087630-appb-100002
    为向上取整。
  4. 根据权利要求1至3中任一项所述的方法，其特征在于，在所述终端设备根据M，以及所述终端设备所使用的传输带宽，确定所述传输带宽下的RBG大小之前，所述方法还包括：
    所述终端设备根据所使用的基础参数集，确定与所述基础参数集对应的M，其中，不同基础参数集对应不同的M。
  5. 根据权利要求1至3中任一项所述的方法，其特征在于，在所述终端设备根据M，以及所述终端设备所使用的传输带宽，确定所述传输带宽下的RBG大小之前，所述方法还包括：
    所述终端设备接收所述网络设备发送的用于指示M的第一指示信息，所述第一指示信息包括下行控制信息DCI、无线资源控制RRC信令、系统信息SI或媒体访问控制元素MAC CE。
  6. 根据权利要求1至5中任一项所述的方法，其特征在于，在所述终端设备根据M，以及所述终端设备所使用的传输带宽，确定所述传输带宽下的RBG大小之前，所述方法还包括：
    所述终端设备确定所述传输带宽，其中，所述终端设备在不同传输时间周期内使用的传输带宽不同。
  7. 根据权利要求6所述的方法，其特征在于，所述终端设备确定所述传输带宽，包括：
    所述终端设备接收所述网络设备发送的用于指示所述传输带宽的第二指示信息，所述第二指示信息包括DCI、RRC信令、系统信息SI或MAC CE。
  8. 一种传输数据的方法，其特征在于，所述方法包括：
    网络设备根据特定参数M，以及与终端设备进行数据传输所使用的传输带宽，确定所述传输带宽下的资源块组RBG大小，M为正整数；
    所述网络设备在所述传输带宽内的N个RBG中，确定用于传输数据的目标RBG，其中，N是根据所述传输带宽和所述RBG大小确定的，N为小于或等于M的正整数；
    所述网络设备根据所述目标RBG生成比特图，所述比特图包含M个比特位，所述M个比特位中的N个比特位上的值用于指示所述目标RBG；
    所述网络设备向所述终端设备发送承载在下行控制信息中的所述比特图；
    所述网络设备在所述目标RBG上与所述终端设备之间传输所述数据。
  9. 根据权利要求8所述的方法，其特征在于，所述传输带宽等于W，所述RBG大小等于S，S为预设的多个RBG大小中大于W/M的最小的RBG大小。
  10. 根据权利要求8或9所述的方法，其特征在于，N等于
    Figure PCTCN2017087630-appb-100003
    其中
    Figure PCTCN2017087630-appb-100004
    为向上取整。
  11. 根据权利要求8至10中任一项所述的方法，其特征在于，在所述网络设备根据M，以及与终端设备进行数据传输所使用的传输带宽，确定所述传输带宽下的RBG大小之前，所述方法还包括：
    所述网络设备根据所使用的基础参数集，确定与所述基础参数集对应的M，其中，不同基础参数集对应不同的M。
  12. 根据权利要求8至11中任一项所述的方法，其特征在于，所述方法还包括：
    所述网络设备向所述终端设备发送用于指示M的第一指示信息，所述第一指示信息包括下行控制信息DCI、无线资源控制RRC信令、系统信息SI或媒体访问控制元素MAC CE。
  13. 根据权利要求8至12中任一项所述的方法，其特征在于，在所述 网络设备根据M，以及与终端设备进行数据传输所使用的传输带宽，确定所述传输带宽下的RBG大小之前，所述方法还包括：
    所述网络设备确定所述传输带宽，其中，所述网络设备在不同传输时间周期内与所述终端设备进行数据传输所使用的传输带宽不同。
  14. 根据权利要求13所述的方法，其特征在于，所述方法还包括：
    所述网络设备向所述终端设备发送用于指示所述传输带宽的第二指示信息，所述第二指示信息包括DCI、RRC信令、系统信息SI或MAC CE。
  15. 一种终端设备，其特征在于，所述终端设备包括：
    确定单元，用于根据特定参数M，以及所述终端设备所使用的传输带宽，确定所述传输带宽下的资源块组RBG大小，M为正整数；
    传输单元，用于接收网络设备发送的承载在下行控制信息中的比特图，所述比特图包含M个比特位；
    所述确定单元还用于，根据所述M个比特位中的N个比特位上的值，确定所述传输带宽内的N个RBG中用于传输数据的目标RBG，其中，N是根据所述传输带宽和所述RBG大小确定的，N为小于或等于M的正整数；
    所述传输单元还用于，在所述目标RBG上与所述网络设备之间传输所述数据。
  16. 根据权利要求15所述的终端设备，其特征在于，所述传输带宽等于W，所述RBG大小等于S，S为预设的多个RBG大小中大于W/M的最小的RBG大小。
  17. 根据权利要求15或16所述的终端设备，其特征在于，N等于
    Figure PCTCN2017087630-appb-100005
    其中
    Figure PCTCN2017087630-appb-100006
    为向上取整。
  18. 根据权利要求15至17中任一项所述的终端设备，其特征在于，所述确定单元还用于：
    根据所使用的基础参数集，确定与所述基础参数集对应的M，其中，不同基础参数集对应不同的M。
  19. 根据权利要求15至18中任一项所述的终端设备，其特征在于，所述传输单元还用于：
    接收所述网络设备发送的用于指示M的第一指示信息，所述第一指示信息包括下行控制信息DCI、无线资源控制RRC信令、系统信息SI或媒体访问控制元素MAC CE。
  20. 根据权利要求15至19中任一项所述的终端设备，其特征在于，所述确定单元还用于：
    确定所述传输带宽，其中，所述终端设备在不同传输时间周期内使用的传输带宽不同。
  21. 根据权利要求20所述的终端设备，其特征在于，所述确定单元具体用于：
    通过所述传输单元接收所述网络设备发送的用于指示所述传输带宽的第二指示信息，所述第二指示信息包括DCI、RRC信令、系统信息SI或MAC CE。
  22. 一种网络设备，其特征在于，所述网络设备包括：
    确定单元，用于根据特定参数M，以及与终端设备进行数据传输所使用的传输带宽，确定所述传输带宽下的资源块组RBG大小，M为正整数；
    所述确定单元还用于，在所述传输带宽内的N个RBG中，确定用于传输数据的目标RBG，其中，N是根据所述传输带宽和所述RBG大小确定的，N为小于或等于M的正整数；
    处理单元，用于根据所述目标RBG生成比特图，所述比特图包含M个比特位，所述M个比特位中的N个比特位上的值用于指示所述目标RBG；
    传输单元，用于向所述终端设备发送承载在下行控制信息中的所述比特图；
    所述传输单元还用于，在所述目标RBG上与所述终端设备之间传输所述数据。
  23. 根据权利要求22所述的网络设备，其特征在于，所述传输带宽等于W，所述RBG大小等于S，S为预设的多个RBG大小中大于W/M的最小的RBG大小。
  24. 根据权利要求22或23所述的网络设备，其特征在于，N等于
    Figure PCTCN2017087630-appb-100007
    其中
    Figure PCTCN2017087630-appb-100008
    为向上取整。
  25. 根据权利要求22至24中任一项所述的网络设备，其特征在于，所述确定单元还用于：
    根据所使用的基础参数集，确定与所述基础参数集对应的M，其中，不同基础参数集对应不同的M。
  26. 根据权利要求22至25中任一项所述的网络设备，其特征在于，所 述传输单元还用于：
    向所述终端设备发送用于指示M的第一指示信息，所述第一指示信息包括下行控制信息DCI、无线资源控制RRC信令、系统信息SI或媒体访问控制元素MAC CE。
  27. 根据权利要求22至26中任一项所述的网络设备，其特征在于，所述确定单元还用于：
    确定所述传输带宽，其中，所述网络设备在不同传输时间周期内与所述终端设备进行数据传输所使用的传输带宽不同。
  28. 根据权利要求27所述的网络设备，其特征在于，所述传输单元还用于：
    向所述终端设备发送用于指示所述传输带宽的第二指示信息，所述第二指示信息包括DCI、RRC信令、系统信息SI或MAC CE。
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