WO2019095739A1 - 一种带宽指示方法、网络设备及终端设备 - Google Patents

一种带宽指示方法、网络设备及终端设备 Download PDF

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Publication number
WO2019095739A1
WO2019095739A1 PCT/CN2018/099423 CN2018099423W WO2019095739A1 WO 2019095739 A1 WO2019095739 A1 WO 2019095739A1 CN 2018099423 W CN2018099423 W CN 2018099423W WO 2019095739 A1 WO2019095739 A1 WO 2019095739A1
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WIPO (PCT)
Prior art keywords
bwp
indication information
field
indicate
terminal device
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PCT/CN2018/099423
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English (en)
French (fr)
Inventor
王达
王键
薛祎凡
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华为技术有限公司
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Publication of WO2019095739A1 publication Critical patent/WO2019095739A1/zh

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    • 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
    • H04W72/12—Wireless traffic scheduling

Definitions

  • the embodiments of the present invention relate to the field of communications, and in particular, to a bandwidth indication method, a network device, and a terminal device.
  • the base station can configure a bandwidth part (BWP) for the terminal, that is, support a bandwidth occupied between the base station and the terminal. Partially transmitted.
  • BWP bandwidth part
  • the base station configures the terminal with a 20 MHz BWP, and the terminal can communicate with the base station on the 20 MHz resource.
  • the base station may send an indication message to the terminal to instruct the terminal device to activate a BWP.
  • the terminal After receiving the indication information, the terminal activates the BWP of the current active state, activates the BWP indicated by the indication information, and transmits the BWP indicated by the indication information to the base station.
  • the prior art is not related to how to design the above indication information to enable the information to activate or deactivate the BWP, and does not involve the specific process of indicating the information indicating activation or deactivation of the BWP, and the base station cannot use the indication information to notify the terminal device to activate. Or by deactivating the BWP, flexible scheduling of the terminal device cannot be achieved.
  • the present application provides a bandwidth indication method, a network device, and a terminal device, so that the network device can use the indication information to notify the terminal device to activate or deactivate the BWP, thereby implementing flexible scheduling of the terminal device.
  • a bandwidth indication method including: a network device generating indication information, where the indication information is used to indicate that the terminal device receives downlink data sent by the network device or sends uplink data to the network device; further, the indication information may include the first Field. The first field is used to indicate the BWP; subsequently, the network device sends the indication information to the terminal device.
  • the network device may indicate another BWP (which may be an uplink BWP or a downlink BWP) by using a first field in the indication information (eg, DCI), and after receiving the indication information, the terminal may activate the current
  • the BWP is deactivated, and the BWP indicated by the indication information is activated to cause the terminal device to switch to the BWP indicated by the indication information to receive downlink data or send uplink data.
  • the BWP indicated by the first field may be deactivated in the plurality of currently activated BWPs. In this way, the network device can support the activation or deactivation of the downlink BWP or the uplink BWP by using DL assignment or UL grant signaling, so that the scheduling of the network device is more flexible.
  • the first field is a resource allocation field, a resource set resource set indication field, a redundancy version RV field, a transmit power control field, and a modulation and coding policy MCS field. Any one or more of them. Further, the first field is used to indicate the BWP, including: part or all of the first field is used to indicate the BWP.
  • the existing field of the indication information can also be used to indicate the BWP, and thus, when the new BWP needs to be activated or deactivated, these fields can be utilized to indicate to the terminal device that the BWP needs to be activated or deactivated, without When the BWP is switched, there is no need to change the currently activated BWP, and the first field indicates the information that it itself represents. This will not change the original signaling format of the indication information and will not affect compatibility.
  • the indication information further includes a second field, where the second field is used to indicate whether the first field is used Indicates BWP.
  • the terminal device needs to indicate that the field can indicate the BWP, so that the terminal device can decode the BWP indicated by the first field in the first field after receiving the indication information.
  • the first field is a BWP indication field.
  • a new field can also be added to the indication information to specifically indicate the BWP.
  • the first field is used to indicate the uplink BWP, and the indication information is further used to indicate the terminal device. Sending the uplink data to the network device; or, the first field is used to indicate the uplink BWP, and the indication information is further used to indicate that the terminal device receives the downlink data sent by the network device; or the first field is used to indicate the downlink BWP, and the indication information is further And the first field is used to indicate the downlink BWP, and the indication information is further used to indicate that the terminal device receives the downlink data sent by the network device.
  • control signaling for scheduling the uplink data may be used to instruct the terminal to activate or deactivate the uplink BWP, or the control signaling for scheduling the uplink data may be used to instruct the terminal to activate or deactivate the downlink BWP; and the control signaling indicating the downlink transmission may be used. Instructing the terminal to activate or deactivate the uplink BWP; the control signaling indicating the downlink transmission may also be used to instruct the terminal to activate or deactivate the downlink BWP.
  • the indication information is further used to indicate a type of the BWP; the type of the BWP is an uplink BWP or a downlink BWP.
  • the index numbers of the uplink BWP and the downlink BWP may be the same, and an index number indicated by the first field may be an index number of an uplink BWP, or may be an index number of a downlink BWP. Therefore, it is also necessary to indicate the type of the BWP so that the terminal device determines whether the indication information indicates an uplink BWP or a downlink BWP.
  • the type of the BWP indicated by the indication information includes: the indication information includes a BWP type indication bit.
  • the BWP type indication bit is the first value, the indication information is used to indicate the uplink BWP; when the BWP type indication bit is the second value, the indication information is used to indicate the downlink BWP.
  • an indication bit can also be added to the indication information to indicate the type of the BWP, so that the terminal device can explicitly activate or deactivate the uplink BWP, or activate or deactivate the downlink BWP.
  • the type of the BWP indicated by the indication information includes: when the indication information is scrambled using the first identifier The indication information is used to indicate the uplink BWP; or, when the indication information is scrambled using the second identifier, the indication information is used to indicate the downlink BWP.
  • the type of the BWP can be distinguished by different scrambling methods for the indication information, so that the terminal device can explicitly activate or deactivate the uplink BWP, or activate or deactivate the downlink BWP.
  • the type of the BWP indicated by the indication information includes: when the network device sends in the first search space When the information is indicated, the indication information is used to indicate the uplink BWP; or when the network device sends the indication information in the second search space, the indication information is used to indicate the downlink BWP.
  • the type of the BWP can be distinguished by transmitting the search space of the indication information, so that the terminal device can explicitly activate or deactivate the uplink BWP or activate or deactivate the downlink BWP.
  • the method further includes: the network device is in the A field indicates that the downlink BWP is activated, and the downlink data is sent; or the network device receives the uplink data sent by the terminal device on the uplink BWP that is activated by the first field; or the network device sends the downlink BWP of the first indication information. , send downlink data.
  • the indication information is the control signaling indicating the downlink transmission
  • the downlink data here is the downlink data indicating the transmission of the indication information
  • the indication information is the control signaling for scheduling the uplink transmission
  • the uplink data is the uplink data for the indication information scheduling.
  • the new BWP receives the downlink data according to the indication information or sends the uplink data according to the indication information.
  • the terminal device may first receive downlink data according to the indication information on the currently activated BWP or send uplink data according to the indication information, and then switch to the new BWP.
  • a bandwidth indication method including: receiving, by a terminal device, indication information, where the indication information is used to indicate that the terminal device receives downlink data sent by the network device or sends uplink data to the network device; further, the indication information includes the first field.
  • the first field is used to indicate the BWP. Subsequently, the terminal device can activate or deactivate the BWP indicated by the first field.
  • the network device may indicate another BWP (which may be an uplink BWP or a downlink BWP) by using a first field in the indication information (eg, DCI), and after receiving the indication information, the terminal may activate the current
  • the BWP is deactivated, and the BWP indicated by the indication information is activated to cause the terminal device to switch to the BWP indicated by the indication information to receive downlink data or send uplink data.
  • the BWP indicated by the first field may be deactivated in the plurality of currently activated BWPs. In this way, the network device can support the activation or deactivation of the downlink BWP or the uplink BWP by using DL assignment or UL grant signaling, so that the scheduling of the network device is more flexible.
  • the first field is a resource allocation field, a resource set resource set indication field, a redundancy version RV field, a transmit power control field, and a modulation and coding policy MCS field. Any one or more of them. Further, the first field is used to indicate the BWP, including: part or all of the first field is used to indicate the BWP.
  • the existing field of the indication information can also be used to indicate the BWP, and thus, when the activation of the new BWP is required to be activated, these fields can be utilized to indicate to the terminal device the BWP that needs to be activated or deactivated, without switching.
  • the first field indicates the information that it itself represents. This will not change the original signaling format of the indication information and will not affect compatibility.
  • the indication information further includes a second field, where the second field is used to indicate whether the first field is used Indicates BWP.
  • the terminal device needs to indicate that the field can indicate the BWP, so that the terminal device can decode the BWP indicated by the first field in the first field after receiving the indication information.
  • the first field is a BWP indication field.
  • a new field can also be added to the indication information to specifically indicate the BWP.
  • the first field is used to indicate an uplink BWP, and the indication information is further used to indicate the terminal device.
  • control signaling for scheduling the uplink data may be used to instruct the terminal to activate or deactivate the uplink BWP, or the control signaling for scheduling the uplink data may be used to instruct the terminal to activate or deactivate the downlink BWP; and the control signaling indicating the downlink transmission may be used. Instructing the terminal to activate or deactivate the uplink BWP; the control signaling indicating the downlink transmission may also be used to instruct the terminal to activate or deactivate the downlink BWP.
  • the indication information is further used to indicate a type of the BWP; the type of the BWP is an uplink BWP or Downstream BWP.
  • the index numbers of the uplink BWP and the downlink BWP may be the same, and an index number indicated by the first field may be an index number of an uplink BWP, or may be an index number of a downlink BWP. Therefore, it is also necessary to indicate the type of the BWP so that the terminal device determines whether the indication information indicates an uplink BWP or a downlink BWP.
  • the type of the BWP indicated by the indication information includes: the indication information includes a BWP type indication bit.
  • the BWP type indication bit is the first value, the indication information is used to indicate the uplink BWP; when the BWP type indication bit is the second value, the indication information is used to indicate the downlink BWP.
  • an indication bit can also be added to the indication information to indicate the type of the BWP, so that the terminal device can explicitly activate or deactivate the uplink BWP, or activate or deactivate the downlink BWP.
  • the type of the BWP indicated by the indication information includes: when the indication information is scrambled using the first identifier The indication information is used to indicate the uplink BWP; or, when the indication information is scrambled using the second identifier, the indication information is used to indicate the downlink BWP.
  • the type of the BWP can be distinguished by different scrambling methods for the indication information, so that the terminal device can explicitly activate or deactivate the uplink BWP, or activate or deactivate the downlink BWP.
  • the type of the BWP indicated by the indication information includes: when the terminal device receives in the first search space When the information is indicated, the indication information is used to indicate the uplink BWP; or, when the terminal device receives the indication information in the second search space, the indication information is used to indicate the downlink BWP.
  • the type of the BWP can be distinguished by transmitting the search space of the indication information, so that the terminal device can explicitly activate or deactivate the uplink BWP or activate or deactivate the downlink BWP.
  • the method further includes: after the terminal device activates the BWP indicated by the first field, the terminal device is The first field indicates that the downlink data is received on the activated downlink BWP; or, after the terminal device activates the BWP indicated by the first field, the terminal device sends the uplink data to the terminal device on the uplink BWP that is indicated by the first field; or, the terminal Before or after the device activates or deactivates the BWP indicated by the first field, the downlink data sent by the network device is received on the downlink BWP that sends the first indication information.
  • the indication information is the control signaling indicating the downlink transmission
  • the downlink data here is the downlink data indicating the transmission of the indication information
  • the indication information is the control signaling for scheduling the uplink transmission
  • the uplink data is the uplink data for the indication information scheduling.
  • the new BWP receives the downlink data according to the indication information or sends the uplink data according to the indication information.
  • the terminal device may first receive downlink data according to the indication information on the currently activated BWP or send uplink data according to the indication information, and then switch to the new BWP.
  • a network device including: a processing unit, configured to generate indication information, where the indication information includes a first field, where the first field is used to indicate a bandwidth portion BWP; and the indication information is used to indicate that the terminal device receives the network device to send Downlink data or send uplink data to a network device. And a sending unit, configured to send the indication information to the terminal device.
  • the first field is a resource allocation field, a resource set resource set indication field, a redundancy version RV field, a transmit power control field, and a modulation and coding policy MCS. Any one or more of the fields; the first field is used to indicate the BWP, and includes: part or all of the first field is used to indicate the BWP.
  • the indication information further includes a second field, where the second field is used to indicate whether the first field is used Indicates BWP.
  • the first field is a BWP indication field.
  • the first field is used to indicate an uplink BWP, and the indication information is further used to indicate the terminal
  • the device sends the uplink data to the network device; or the first field is used to indicate the uplink BWP, and the indication information is further used to indicate that the terminal device receives the downlink data sent by the network device; or the first field is used to indicate the downlink BWP, and the indication information is The first field is used to indicate that the terminal device sends the uplink data to the network device; or the first field is used to indicate the downlink BWP, and the indication information is further used to indicate that the terminal device receives the downlink data sent by the network device.
  • the indication information is further used to indicate a type of the BWP; the type of the BWP is an uplink BWP Or down BWP.
  • the type of the BWP indicated by the indication information includes: the indication information includes a BWP type indicator bit When the BWP type indication bit is the first value, the indication information is used to indicate the uplink BWP; when the BWP type indication bit is the second value, the indication information is used to indicate the downlink BWP.
  • the type of the BWP indicated by the indication information includes: when the indication information uses the first identifier plus When the interference is used, the indication information is used to indicate the uplink BWP; or, when the indication information is scrambled using the second identifier, the indication information is used to indicate the downlink BWP.
  • the type of the BWP indicated by the indication information includes: when the network device is in the first search space When the indication information is sent, the indication information is used to indicate the uplink BWP; or, when the network device sends the indication information in the second search space, the indication information is used to indicate the downlink BWP.
  • the sending unit is further configured to: after sending the indication information to the terminal device, at the first The field indicates that the downlink BWP is sent, and the downlink data is sent; or the uplink data sent by the terminal device is received on the uplink BWP where the first field indicates the activation; or the downlink data is sent on the downlink BWP that sends the first indication information.
  • a terminal device including: a receiving unit, configured to receive indication information; the indication information includes a first field, the first field is used to indicate a bandwidth portion BWP, and the indication information is used to indicate that the terminal device receives the network device to send The downlink data or the uplink data is sent to the network device; the processing unit is configured to activate or deactivate the BWP indicated by the first field.
  • the first field is a resource allocation field, a resource set resource set indication field, a redundancy version RV field, a transmit power control field, and a modulation and coding policy MCS. Any one or more of the fields; the first field is used to indicate the BWP, and includes: part or all of the first field is used to indicate the BWP.
  • the indication information further includes a second field, where the second field is used to indicate whether the first field is used for Indicates BWP.
  • the first field is a BWP indication field.
  • the first field is used to indicate an uplink BWP
  • the indication information is further used to indicate that the terminal device is The network device sends the uplink data; or the first field is used to indicate the uplink BWP, and the indication information is further used to indicate that the terminal device receives the downlink data sent by the network device; or the first field is used to indicate the downlink BWP, and the indication information is further used.
  • the indication information is further used to indicate a type of the BWP; the type of the BWP is an uplink BWP or a downlink BWP.
  • the type of the BWP indicated by the indication information includes: the indication information includes a BWP type indication bit; When the type indication bit is the first value, the indication information is used to indicate the uplink BWP; when the BWP type indication bit is the second value, the indication information is used to indicate the downlink BWP.
  • the type of the BWP indicated by the indication information includes: when the indication information is scrambled using the first identifier The indication information is used to indicate the uplink BWP; or, when the indication information is scrambled using the second identifier, the indication information is used to indicate the downlink BWP.
  • the type of the BWP indicated by the indication information includes: when the terminal device receives the indication in the first search space When the information is used, the indication information is used to indicate the uplink BWP; or when the terminal device receives the indication information in the second search space, the indication information is used to indicate the downlink BWP.
  • the receiving unit is further configured to: after the processing unit activates the BWP indicated by the first field, the terminal The device receives the downlink data on the downlink BWP that is activated by the first field; or, on the downlink BWP that sends the first indication information, the processing unit activates or deactivates the downlink data sent by the network device.
  • the method further includes a sending unit, configured to send the uplink data to the terminal device after the first field indicates the activated uplink BWP, after the processing unit activates the BWP indicated by the first field.
  • a network device including: a transceiver, a processor, and a memory; the memory stores a code, and the processor is configured to call the code in the memory to execute the first aspect and any one of the possible implementations of the first aspect.
  • the bandwidth indication method described in the mode including: a transceiver, a processor, and a memory; the memory stores a code, and the processor is configured to call the code in the memory to execute the first aspect and any one of the possible implementations of the first aspect.
  • a computer readable storage medium stores instructions; when the computer readable storage medium is run on the network device of any of the third aspect and the third aspect
  • the network device is configured to perform the bandwidth indication method described in the foregoing first aspect and any one of the possible implementation manners of the first aspect.
  • a wireless communication device stores an instruction, when the wireless communication device runs on the network device according to any one of the third aspect and the third aspect, causing the network device to execute The bandwidth indication method according to the above first aspect and any one of the possible implementation manners of the first aspect.
  • the wireless communication device is a chip.
  • a terminal device including: a transceiver, a processor, and a memory; the memory stores a code, and the processor is configured to invoke code in the memory to perform the foregoing second aspect and any possible implementation of the second aspect The bandwidth indication method described in the mode.
  • a computer readable storage medium is stored, wherein the computer readable storage medium stores instructions; when the computer readable storage medium is run on the terminal device of any of the fourth aspect and the fourth aspect And causing the terminal device to perform the bandwidth indication method according to the foregoing second aspect and any one of the possible implementation manners of the second aspect.
  • a wireless communication device wherein the wireless communication device stores an instruction, and when the wireless communication device operates on the terminal device according to any one of the fourth aspect and the fourth aspect, the terminal device performs the above The second aspect and the bandwidth indication method of any one of the possible implementation manners of the second aspect; the wireless communication device is a chip.
  • a network system including a network device and a terminal device, where the network device generates indication information, and sends indication information to the terminal device, where the indication information includes a first field, and the first field is used to indicate the bandwidth portion.
  • the BWP indicates that the terminal device receives the downlink data sent by the network device or sends the uplink data to the network device; the terminal device receives the indication information, and activates or deactivates the BWP indicated by the first field.
  • the network device is the network device according to any one of the foregoing third aspect, wherein the terminal device is the terminal device according to any one of the fourth aspect and the fourth aspect.
  • a network switching method including: generating, by the network device, indication information, where the indication information is used to indicate that the terminal device receives downlink data sent by the network device or sends uplink data to the network device. Further, the indication information includes a first field, where the first field is used to indicate the bandwidth portion BWP. The network device may also send the indication information to the terminal device. The terminal device receives the indication information sent by the network device, and may also activate or deactivate the BWP indicated by the first field.
  • FIG. 1 is a schematic diagram of a conventional communication system
  • FIG. 2 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart diagram of a bandwidth indication method according to an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of a frequency domain of an existing resource group
  • FIG. 5 is a schematic diagram of BWP switching according to an embodiment of the present invention.
  • FIG. 6 is another schematic diagram of a BWP switch according to an embodiment of the present invention.
  • FIG. 7 is another schematic diagram of a BWP switch according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a BWP index number according to an embodiment of the present invention.
  • FIG. 9 is another schematic diagram of a BWP index number according to an embodiment of the present invention.
  • FIG. 10 is another schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • FIG. 11 is another schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.
  • FIG. 13 is another schematic structural diagram of a network device according to an embodiment of the present disclosure.
  • FIG. 14 is another schematic structural diagram of a network device according to an embodiment of the present invention.
  • the network device in the 5G can configure the bandwidth part BWP for the terminal device, and the terminal device and the network device can occupy a bandwidth portion indicated by the BWP for transmission.
  • the BWP can be divided into a downlink (DL) BWP and an uplink (UL) BWP.
  • the network device sends downlink data to the terminal device through the downlink BWP, and the terminal device sends the uplink data to the network device by using the uplink BWP.
  • the network device may configure multiple downlink BWPs and multiple uplink BWPs for the terminal device, and activate at least one downlink BWP and activate at least one uplink BWP, and the terminal device may receive downlink data sent by the base station on the activated downlink BWP, for example, downlink control. Signaling, downlink user data, etc.; the terminal can send uplink data on the activated uplink BWP, such as: uplink control signaling, data, (scheduling request, SR), (sounding reference symbol, SRS), (channel state information, CSI) Feedback, (channel quality indicator, CQI) feedback, etc.
  • the system may be a 5G system, or may be another communication system, as long as there is an entity in the communication system that needs to send uplink data, another entity needs to receive uplink data, or an entity exists. Need to send downlink data, another entity needs to receive downlink data.
  • the communication system includes a network device and a plurality of terminal devices, where the network device may be a base station, and the terminal device may be a user equipment (UE).
  • the base station may perform uplink data scheduling or downlink data scheduling for the UE in the serving cell.
  • the so-called uplink data scheduling means that the base station can notify the UE of the resources for uplink transmission by using control signaling of the scheduling data, such as: at which time and on which carrier the UE can transmit uplink data, and the modulation and coding mode used for transmitting the uplink data.
  • the so-called downlink data scheduling means that the base station can notify the UE of the resources for downlink transmission by using the control signaling of the scheduling data, such as: at which time and which carrier the UE can receive the downlink data sent by the base station, and the base station uses the downlink data to be sent by the base station. Modulation coding method.
  • uplink data scheduling or downlink data scheduling can usually be performed by using downlink control information (DCI).
  • DCI is a type of control signaling, and is usually carried by a physical downlink control channel (PDCCH).
  • PDCCH physical downlink control channel
  • Downlink control information sent by the base station to the UE including uplink and downlink resource allocation, HARQ information, or power control.
  • An embodiment of the present invention provides a bandwidth indication method, where a network device may indicate another BWP (which may be an uplink BWP or a downlink BWP) by using a first field in the indication information (such as the DCI), so that the UE transits to the indication information.
  • the indicated BWP receives the downlink data or sends the uplink data, that is, the UE may deactivate the currently activated BWP, and activate the BWP indicated by the indication information.
  • the UE does not change the currently activated BWP, but activates the BWP indicated by the indication information, or the UE may deactivate the BWP indicated by the indication information in the currently activated multiple BWPs.
  • the network device can support the activation or deactivation of the downlink BWP or the uplink BWP by using DL assignment or UL grant signaling, so that the scheduling of the network device is more flexible.
  • the bandwidth indication method provided by the embodiment of the present invention may be applied to a terminal device, where the terminal device may be a UE in the system shown in FIG. As shown in FIG. 2, the terminal device may include at least one processor 11, a memory 12, a transceiver 13, and a communication bus 14.
  • the processor 11 is a control center of the terminal device, and may be a processor or a collective name of a plurality of processing elements.
  • the processor 11 is a central processing unit (CPU), may be an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present invention.
  • CPU central processing unit
  • ASIC Application Specific Integrated Circuit
  • DSPs digital signal processors
  • FPGAs Field Programmable Gate Arrays
  • the processor 11 can perform various functions of the terminal device by running or executing a software program stored in the memory 12 and calling data stored in the memory 12.
  • processor 11 may include one or more CPUs, such as CPU0 and CPU1 shown in FIG.
  • the terminal device may include a plurality of processors, such as the processor 11 and the processor 15 shown in FIG. 2.
  • processors can be a single core processor (CPU) or a multi-core processor (multi-CPU).
  • a processor herein may refer to one or more devices, circuits, and/or processing cores for processing data, such as computer program instructions.
  • the memory 12 can be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type that can store information and instructions.
  • the dynamic storage device can also be an Electrically Erasable Programmable Read-Only Memory (EEPROM), a Compact Disc Read-Only Memory (CD-ROM) or other optical disc storage, and a disc storage device. (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be Any other media accessed, but not limited to this.
  • the memory 12 can be stand-alone and connected to the processor 11 via a communication bus 14.
  • the memory 12 can also be integrated with the processor 11.
  • the memory 12 is used to store a software program that executes the solution of the present invention, and is controlled by the processor 11.
  • the transceiver 13 uses means, such as any transceiver, for communication with other devices in the system of FIG. 1, such as a base station or other UE in FIG. It can also be used to communicate with a communication network, such as Ethernet, radio access network (RAN), Wireless Local Area Networks (WLAN), and the like.
  • the transceiver 13 may include a receiving unit to implement a receiving function, and a transmitting unit to implement a transmitting function.
  • the communication bus 14 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus.
  • ISA Industry Standard Architecture
  • PCI Peripheral Component
  • EISA Extended Industry Standard Architecture
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 2, but it does not mean that there is only one bus or one type of bus.
  • the device structure shown in FIG. 2 does not constitute a limitation to the terminal device, and may include more or less components than those illustrated, or some components may be combined, or different component arrangements.
  • the embodiment of the present invention provides a bandwidth indication method, which is applied to the communication system shown in FIG. 1. As shown in FIG. 3, the method includes the following steps:
  • the network device generates indication information, where the indication information includes a first field, where the first field is used to indicate a BWP, and the indication information is used to indicate that the terminal device receives downlink data or a destination that is sent by the network device.
  • the network device sends uplink data.
  • the indication information may be used to schedule control signaling of uplink data, or control signaling indicating downlink transmission, such as: DCI.
  • the BWP can be divided into an uplink BWP and a downlink BWP. Each BWP has an index. The index of the uplink BWP and the downlink BWP can be the same or different.
  • the first field may be used to indicate an index number of the BWP. For example, the first field indicates the index number X, and the base station may indicate the BWP whose index number is X by sending the indication information to the terminal device.
  • the base station may indicate that the terminal device activates or deactivates a BWP by indicating the index number of the BWP in the first field, and then controls the BWP activated by the terminal device.
  • the first field may be a resource allocation field, a resource set indication field, a redundancy version (RV) field, a transmit power control field, and a modulation and coding in the indication information. Any one or more of the policy MCS fields.
  • the first field is one or more of the above fields, all or part of the first field is used to indicate the BWP.
  • the indication information may further include a second field, where the second field is used to indicate whether the first field is Used to indicate BWP.
  • the second field may be 1 bit.
  • the status of the second field is “0”, it indicates that the first field is not used to indicate the BWP, that is, the first field is not used to indicate the index number of the BWP, and the first field is used. It is only used to indicate the information of its original representation.
  • the resource allocation field is only used to indicate the allocation of frequency domain and/or time domain resources.
  • the status of the second field is "1" it indicates that the first field is also indicative of the BWP.
  • the meaning represented by the state value “0” or “1” of the second field is not limited to the above implementation manner, and other implementation manners may be used.
  • “1” indicates that the first field is not used to indicate the BWP
  • “ 0” means that the first field is also indicative of a BWP. This embodiment of the present invention does not limit this.
  • the index of the BWP is indicated by the first field of the indication information by other characteristics of the indication information.
  • a different search space is used to distinguish whether the first field is used to indicate the index of the BWP. For example, if the network device uses the search space A to send the indication information, it indicates that the first field indicates the index of the BWP, and when the terminal device receives the indication information sent by the network device in the search space A, the first field may be determined to indicate the BWP. Index.
  • the network device uses different identifiers to scramble the DCI or the Cyclic Redundancy Check (CRC) in the DCI to distinguish whether the first field is used to indicate the index of the BWP, for example, the network device uses a certain identifier to scramble the DCI.
  • the CRC in the DCI indicates that the first field is used to indicate the index of the BWP.
  • the identifier may be an RNTI.
  • the network device uses different CRC check codes to distinguish whether the first field is used to indicate the index of the BWP, and the network device uses the CRC check code-A, indicating that the first field is used to indicate the index of the BWP.
  • the first field may also be a BWP indication field, that is, a new field dedicated to indicating activation or deactivation of the BWP is added to the indication information, and this field may be used to indicate the index number of the BWP.
  • BWP indication field that is, a new field dedicated to indicating activation or deactivation of the BWP is added to the indication information, and this field may be used to indicate the index number of the BWP.
  • the network device may include the following four conditions by using the first indication information and the first field to indicate the BWP:
  • the first field is used to indicate an uplink BWP
  • the indication information is further used to indicate that the terminal device sends uplink data to the network device. That is, the network device indicates the uplink BWP by scheduling DCI of the uplink data.
  • the first field is used to indicate an uplink BWP
  • the indication information is further used to indicate that the terminal device receives downlink data sent by the network device; that is, the network device indicates uplink by scheduling DCI of downlink data. BWP.
  • the first field is used to indicate a downlink BWP
  • the indication information is further used to indicate that the terminal device sends uplink data to the network device. That is, the network device indicates the downlink BWP by scheduling DCI of the uplink data.
  • the first field is used to indicate the downlink BWP
  • the indication information is further used to indicate that the terminal device receives downlink data sent by the network device. That is, the network device indicates the downlink BWP by scheduling DCI of the downlink data.
  • the network device sends the indication information to the terminal device.
  • the network device may send the indication information to the terminal device by using a currently activated downlink BWP.
  • the currently activated downlink BWP may be a downlink BWP that the terminal device receives the indication information.
  • the terminal device receives the indication information, and activates or deactivates the BWP indicated by the first field.
  • the terminal device may also receive the indication information sent by the network device by using the currently activated downlink BWP.
  • the network device can generally configure multiple downlink BWPs and multiple uplink BWPs for the terminal device, and only allow the terminal device to activate one downlink BWP and one uplink BWP.
  • the first field can indicate that a BWP is activated.
  • the network device may indicate, by using a first field in the indication information, an index number of the BWP, instructing the terminal to deactivate the currently activated BWP, and activate the BWP indicated by the index number.
  • the “currently activated BWP” may be the currently activated downlink BWP, that is, the downlink BWP that the terminal device receives the indication information, and may also be the currently activated uplink BWP.
  • the terminal device transmits the uplink BWP of the uplink data for the last time before step 101. If the first field of the indication information indicates an uplink BWP, the terminal deactivates the currently activated uplink BWP, and activates the uplink BWP indicated by the first field. If the first field of the indication information indicates a downlink BWP, the terminal deactivates the currently activated downlink BWP, and activates the downlink BWP indicated by the first field.
  • the terminal device is allowed to activate multiple downlink BWPs and multiple uplink BWPs.
  • the indication information indicates an uplink BWP
  • the terminal device changes the state of the uplink BWP indicated by the indication information. Specifically, if the uplink BWP indicated by the indication information is in an active state before receiving the indication information, the terminal deactivates the uplink BWP indicated by the indication information after receiving the indication information. If the uplink BWP indicated by the indication information is in a deactivated state before receiving the indication information, the terminal activates the uplink BWP indicated by the indication information after receiving the indication information.
  • the terminal device does not perform an operation of activating or deactivating the BWP after receiving the indication information. . If the indication information indicates a downlink BWP, and the downlink BWP is not a downlink BWP that the terminal device receives the indication information, the terminal device changes the state of the downlink BWP indicated by the indication information. Specifically, if the downlink BWP indicated by the indication information is in an active state before receiving the indication information, the terminal deactivates the downlink BWP indicated by the indication information after receiving the indication information. If the downlink BWP indicated by the indication information is in a deactivated state before receiving the indication information, the terminal activates the downlink BWP indicated by the indication information after receiving the indication information.
  • the index number of the downlink BWP activated by the terminal device is 4, 6, and the terminal receives the indication information by using the downlink BWP with the index number 6. If the indication information indicates a downlink BWP with index number 6, the terminal device does not perform an activation or deactivation operation.
  • the terminal device activates the downlink BWP with the reference number of 7.
  • the terminal device deactivates the downlink BWP with index number 4.
  • the terminal device after receiving the indication information, parses the indication information, and determines an index of the BWP indicated by the indication information. Receiving, on the currently activated downlink BWP, the downlink data sent by the network device according to the indication information, or sending the uplink data to the network device on the currently activated uplink BWP, and then switching to the BWP indicated by the indication information. Perform subsequent data transfers.
  • the network device may send downlink data on the downlink BWP (ie, the currently activated downlink BWP) that sends the first indication information before or after step 103, the terminal device.
  • the downlink data is received on the downlink BWP.
  • the terminal device then switches to the activated downstream BWP indicated by the first field.
  • the terminal device may send the uplink data to the network device by using the uplink BWP (ie, the currently activated BWP) that sent the uplink data last time before step 101 before or after step 103.
  • the terminal device then switches to the activated upstream BWP indicated by the first field.
  • the terminal device may also switch to the BWP indicated by the indication information after parsing the indication information, and then receive the downlink data sent by the network device or send the uplink data to the network device according to the indication information on the new BWP.
  • the network device sends downlink data on the downlink BWP that is activated by the first field, and the terminal device indicates the activated downlink BWP in the first field. Receive downlink data sent by the network device.
  • the terminal device sends the uplink data to the network device on the activated uplink BWP in the first field.
  • the index numbers of the uplink BWP and the downlink BWP are different from each other, that is, an index number may uniquely indicate an uplink BWP or a downlink BWP.
  • the first field can uniquely indicate an upstream BWP or a downstream BWP.
  • the index numbers are 0 to 3
  • four downlink BWPs are configured at the same time
  • the index numbers are 4 to 7, respectively
  • the index number is indicated by 3 bits
  • a state value of the 3 bits is The only one corresponding to an index number, that is, uniquely corresponds to one uplink BWP or downlink BWP.
  • a 3-bit status value of "000" indicates that the BWP with index number 0 is an uplink BWP
  • a 3-bit status value of "110" indicates that the index number is 6 BWP, which is a downlink BWP.
  • the 3 bits may be all of the first field, that is, the first field is a BWP indication field, and the 3 bits may also be part or all of the first field, that is, the first field is an existing field indicating information, and the field is indicated by using the field. BWP.
  • an index number may indicate an uplink BWP and a downlink BWP.
  • the first field cannot uniquely indicate an upstream BWP or a downstream BWP.
  • the index number is indicated by 2 bits, and a certain state value of the 2 bits is used.
  • the index number cannot distinguish whether it corresponds to one uplink BWP or one downlink BWP.
  • a 2-bit status value of "00" indicates that the index number is 0.
  • the BWP may be an upper BWP with an index number of 0 or a downlink BWP with an index number of zero. That is to say, the first field in this scenario indicates two different types of BWPs, and other characteristics of the first indication information are also needed to indicate the type of the BWP to the terminal device, that is, the BWP indicated by the first field is the uplink BWP. Still down the BWP. That is to say, the indication information can also be used to indicate the type of the BWP.
  • the network device can indicate the type of the BWP in the following three manners, specifically:
  • a BWP type indication bit is added to the indication information to indicate the type of the BWP, and the length of the BWP type indication bit may be 1 bit.
  • the indication information is used to indicate the uplink BWP; when the BWP type indication bit is the second value, the indication information is used to indicate the downlink BWP.
  • the BWP type indication bit is “0”, indicating that the first field indicates the uplink BWP; the BWP type indication bit is “1”, indicating that the first field indicates the downlink BWP.
  • the BWP type indication bit is “1”, indicating that the first field indicates the uplink BWP; the BWP type indication bit is “0”, indicating that the first field indicates the downlink BWP.
  • the meaning of the state value "0" or "1" of the BWP type indicating bit is not limited to the above implementation manner, and other implementation manners are also possible, which are not limited by the embodiment of the present invention.
  • the type of BWP is indicated by a different scrambling manner for the indication information.
  • the indication information is used to indicate an uplink BWP; or, when the indication information is scrambled using the second identifier, the indication information is used to indicate a downlink BWP.
  • first identifier or the second identifier may be used to scramble the DCI of the indication information or to scramble the CRC in the DCI of the indication information, which is not limited in this embodiment of the present invention.
  • the network device may also indicate a BWP type by using a specific identifier, such as: scrambling the indication information by using A (representing an identifier), where the indication information indicates an uplink BWP.
  • a specific identifier such as: scrambling the indication information by using A (representing an identifier), where the indication information indicates an uplink BWP.
  • the terminal device may determine the type of the BWP indicated by the indication information by identifying the scrambling manner of the indication information.
  • the first identifier and the second identifier may be a first radio network temporary identifier (RNTI) and a second RNTI, and may be other identifiers, which are not limited in this embodiment of the present invention.
  • RNTI radio network temporary identifier
  • second RNTI may be other identifiers, which are not limited in this embodiment of the present invention.
  • the network device may notify the terminal device of the correspondence between the identifier and the BWP type by using radio resource control (RRC) signaling, or notify the terminal device of the correspondence between the identifier and the BWP type by using broadcast signaling.
  • RRC radio resource control
  • the correspondence between the identifier and the BWP type can also be specified in the protocol standard.
  • one identifier and one offset may be notified, and the terminal device may determine another identifier according to one identifier and one offset.
  • the terminal device is notified that the identifier A corresponds to the uplink BWP and the offset, and the terminal device can determine another identifier B according to the identifier A and the offset, and further determine that the identifier B corresponds to the downlink BWP.
  • the type of BWP is indicated by a different search space.
  • the search space refers to a set of multiple Physical Downlink Control Channels (PDCCHs), and the terminal device can perform blind detection in the search space, that is, blind decoding of various possible PDCCHs.
  • PDCCHs Physical Downlink Control Channels
  • the indication information is used to indicate an uplink BWP; or, when the network device sends the indication information in a second search space, the indication information Used to indicate the downstream BWP.
  • the network device can also indicate a BWP type through a specific search space, for example, by using B (representing a search space) to send indication information, and the indication information indicates an uplink BWP. If the terminal device performs blind detection on the search space B and decodes the indication information sent by the network device, it may be determined that the indication information indicates that the type of the BWP is the uplink BWP.
  • B presents a search space
  • different user equipment special search spaces may be used to distinguish whether the first field of the indication information indicates an uplink BWP or a downlink BWP.
  • UESS user equipment special search spaces
  • the indication information is sent by using the first UESS
  • the network device indicates the downlink BWP
  • the indication information is sent by using the second UESS.
  • the terminal device performs blind detection on the first UESS to decode the indication information, and determines that the network device indicates the uplink BWP
  • the terminal device performs blind detection on the second UESS to decode the indication information, and determines that the network device indicates the downlink BWP.
  • the index number of the indicated BWP may be determined according to the first field of the indication information.
  • the network device may notify the terminal device of the correspondence between the search space and the BWP type by using radio resource control (RRC) signaling, or notify the terminal device of the search space and the BWP type by using broadcast signaling.
  • RRC radio resource control
  • the correspondence between the search space and the BWP type can also be specified in the protocol standard.
  • one search space and one offset may be notified, and the terminal device may determine another search space according to one search space and one offset.
  • the terminal device is notified that the search space A corresponds to the uplink BWP and the offset, and the terminal device can determine another search space B according to the search space A and the offset, and further determine that the search space B corresponds to the downlink BWP.
  • the terminal device is only allowed to activate one downlink BWP and one uplink BWP at the same time, if the first field indicates the downlink BWP currently activated by the terminal device or the uplink BWP currently activated by the terminal device, the terminal device Ignore the indication of the first field and do not perform the activation or deactivation operation after receiving the indication information, and subsequently continue to send the downlink data sent by the network device of the currently activated downlink BWP, or send the uplink to the network device in the currently activated uplink BWP. data.
  • the network device In the bandwidth indication method provided by the embodiment of the present invention, the network device generates indication information, where the indication information is used to instruct the terminal device to send uplink data to the network device or receive downlink data sent by the network device.
  • the first field of the indication information may indicate another BWP (which may be an upstream BWP or a downstream BWP).
  • the terminal may deactivate the currently activated BWP, and activate the BWP indicated by the first field, so that the UE switches to the BWP indicated by the indication information to receive downlink data or send uplink data.
  • the terminal device may also deactivate the BWP indicated by the first field in the plurality of currently activated BWPs. In this way, the network device can support the activation or deactivation of the downlink BWP or the uplink BWP by using DL assignment or UL grant signaling, so that the scheduling of the network device is more flexible.
  • the index of the BWP may be indicated by using the first field existing to the indication information.
  • the first field indicates the information that it originally represents; when it is instructed to schedule data in other BWPs, that is, other BWPs need to be activated, the first field can be used to indicate the index of the activated BWP.
  • a portion of the resource allocation (RA) field is used to indicate the index of the BWP. That is to say, the index of the BWP is indicated by a part of the bits of the RA field, and the bits in the RA field no longer indicate the information originally represented by the RA, such as resource allocation.
  • the RA field is used to indicate the frequency domain resource as an example, and the frequency resource allocation type 0 is used to indicate the frequency domain resource.
  • the frequency domain resource is indicated by a resource block group (RBG) by using a bitmap.
  • RBG resource block group
  • the resource allocation of the UE For example, if there are 20 RBGs in the current frequency domain resources, then 20 bits are used to indicate the frequency domain resource allocation, and each bit corresponds to one RBG.
  • the status value of a bit corresponding to an RBG is “1”, and the allocation of the RBG is: the UE is allocated to the UE (that is, the terminal device in the embodiment of the present invention), and the status value “0” represents the allocation of the RBG.
  • the situation is: not assigned to the UE.
  • 2bits can be used to indicate the index of the BWP.
  • the first 2 bits of the RA field can be used to indicate the index of the BWP.
  • the allocation of two RGB corresponding to the first two bits of the default RA field is not allocated to the UE, or the allocation of two RGB corresponding to the first two bits of the default RA field is allocated to the UE. .
  • the allocation of two RGB corresponding to the first three bits is determined. If the third bit is 0, the allocation of the three RBGs corresponding to the first three bits is It is not allocated to the UE; if the third bit is 1, it indicates that the allocation of the three RBGs corresponding to the first three bits is allocated to the UE.
  • the RA field is used to indicate the frequency domain resource.
  • the RA field can also be used to indicate the time domain resource or the time-frequency resource.
  • the RA field is used to indicate that the BWP index is implemented in a similar manner. Narration. It should be noted that, the above description is only one possible implementation manner of using the RA field to indicate the index of the BWP.
  • the use of the RA field to indicate the index of the BWP may also have other implementation manners, which is not limited by the embodiment of the present invention.
  • the resource set (s) indication field indicates the index of the BWP.
  • the concept of a resource set is introduced, that is, on a symbol for transmitting a PDCCH, some resources are not occupied by the PDCCH, and resources that are not occupied by the PDCCH are resources.
  • the set, resource set can also be configured for use by the PDSCH, and the network device (eg, the base station) can use the resource set to send downlink user data to the terminal device (eg, the UE). Further, the base station configures one or more resource sets for the UE through RRC signaling, and then uses the resource group indication field in the DCI to indicate which sets are available to the UE and which are unavailable.
  • a cross-BWP scheduling UE occurs, that is, when the current BWP (BWP1) is deactivated and a new BWP (BWP2) is activated, data transmission is performed with the UE through the new BWP. It takes a certain time for the UE to decode the PDCCH. It takes a certain time to jump from BWP1 to BWP2, which results in a certain time interval between the PDCCH and the PDSCH.
  • the UE switches to the BWP2 for data reception the time domain symbol of the resource set on the BWP2 is already transmitted, and the UE has been unable to receive the data sent by the base station on the resource sets.
  • the UE communicates with the base station on the BWP1, the data on the BWP2 is not cached. Therefore, the resource set on the BWP2 is obviously no longer available to the UE when the BWP handover occurs.
  • the different sets of coded bits are called different RVs.
  • transmitting different RVs i.e., different coded bit sets
  • the RV field can be used to indicate the index of the BWP.
  • TPC transmission power control
  • the transmit power of the UE is controlled by the base station, and the base station indicates the transmit power of the UE in the DCI (ie, the indication information described in the embodiment of the present invention).
  • DCI the indication information described in the embodiment of the present invention.
  • TPC accumulated power control
  • absolute TPC absolute value power control
  • the UE uses the accumulation TPC, the default power change value in the DCI is 0, then the UE can use the previous accumulated value as the final power control value of the UE. At this time, the DCI does not need to indicate the power change value, and the base station can use the TPC command.
  • the field indicates the index of the BWP.
  • the closed loop power control value indicated in the DCI by default is the same as in the latest TPC command of the same type.
  • the DCI does not need to indicate the final power control value, and the base station can use the TPC command field to indicate the index of the BWP.
  • the MCS field is used to indicate the modulation mode of the current transmission. Assuming that the length of the MCS field is 5 bits, four BWPs are configured, including two uplink BWPs and two downlink BWPs, and the indexes of the four BWPs are different from each other. You can use 2bits to indicate the index of the BWP. The first 2 bits of the MCS field can be used to indicate the index of the BWP.
  • the remaining 3 bits of the MCS field can still indicate a partially available MCS.
  • the remaining 3 bits of the MCS field are reserved (not used), using a default MCS.
  • the remaining 3 bits of the MCS field are reserved (reserved), using the same MCS as the previous transmission.
  • the following describes how to indicate the index of the BWP in the bandwidth indication method provided by the embodiment of the present invention by using the indication information as the DCI.
  • the downlink DCI indicates an uplink BWP
  • the UE activates the uplink BWP
  • the UE sends uplink data on the uplink BWP, for example, ACK or NACK for receiving downlink data (ie, downlink data received according to the indication of the downlink DCI).
  • uplink data ie, downlink data received according to the indication of the downlink DCI.
  • the downlink DCI indicates a downlink BWP.
  • the UE has the following two types of reception possibilities:
  • the UE receives the downlink data of the downlink DCI scheduling on the currently activated downlink BWP (BWP1) (ie, the base station sends the downlink DCI), but switches to the downlink DCI in the next slot (time slot).
  • BWP1 the base station sends the downlink DCI
  • BWP2 the downlink data sent by the base station is subsequently received on the downlink BWP.
  • the UE receives the downlink DCI, and receives the downlink DCI scheduling on the downlink BWP (BWP2) indicated by the downlink DCI in the current slot handover to the downlink BWP (BWP2) indicated by the downlink DCI.
  • BWP2 downlink BWP
  • BWP2 downlink BWP2
  • the first implementation manner can reduce the scheduling delay of the PDSCH, and can schedule unused resources in the PDCCH to transmit data for the UE.
  • the downlink DCI indicates the currently activated uplink BWP or the currently activated downlink BWP, that is, there is no need to activate a new BWP. Then, the UE receives the downlink data of the DCI scheduling on the currently activated downlink BWP, and feeds back the ACK/NACK of the downlink data on the currently activated uplink BWP, or transmits the SRS, PUSCH, SR, CSI/CQI feedback, and the like.
  • the uplink DCI indicates a downlink BWP, and the UE receives subsequent downlink data, such as DCI for performing uplink scheduling, DCI for downlink transmission, downlink user data, and the like, on the downlink BWP indicated by the uplink DCI.
  • subsequent downlink data such as DCI for performing uplink scheduling, DCI for downlink transmission, downlink user data, and the like
  • the uplink DCI indicates an uplink BWP, and the UE also has the following two transmission possibilities:
  • the UE After receiving the uplink DCI, the UE switches to the uplink BWP indicated by the uplink DCI, and sends uplink data scheduled by the uplink DCI and subsequent uplink data on the uplink BWP.
  • the UE sends the uplink data of the uplink DCI scheduling on the currently activated uplink BWP, but switches to the uplink BWP indicated by the uplink DCI in the next slot, and then sends the uplink data or the uplink control signal on the uplink BWP.
  • the uplink DCI indicates the currently activated uplink BWP or the currently activated downlink BWP, that is, there is no need to activate a new BWP. Then, the UE sends the uplink data of the uplink DCI scheduling on the currently activated uplink BWP, and receives the subsequent uplink scheduling DCI, downlink DCI, and downlink data on the currently activated downlink BWP.
  • the index of the BWP may be indicated by the first field in the DCI.
  • M+N index numbers are needed to indicate different BWPs, and each index number is unique.
  • a roundup (log2 (M+N) ) bit is required to indicate the index number of the BWP, where roundup is an up-rounding function. That is to say, the length of the first field is at least greater than or equal to the roundup (log2 (M+N) ) bit.
  • the four BWPs whose index numbers are 0 to 3 are uplink BWPs, which are indicated by 000, 001, 010, and 011, respectively, and the index numbers are 4 to 7, and the four BWPs are downlink BWPs, respectively, using 100, 101, and 110. , 111 to indicate.
  • M uplink BWPs and N downlink BWPs are configured, and the index numbers of the uplink BWP and the downlink BWP are partially or all the same, assuming that the X uplink BWPs and the N downlink BWPs in the M uplink BWPs
  • the index numbers of the X downlink BWPs are the same, then the M+NX index numbers are required to indicate the index of the BWP, and the X index numbers may indicate an uplink BWP and a downlink BWP, and the remaining M+N-2X uniquely indicates one.
  • Upstream BWP or a down BWP Then roundup (log2 (M+NX) ) bits are needed to indicate the index number of the BWP. At this time, the length of the first field is at least greater than or equal to the roundup (log2 (M+NX) ) bit.
  • the uplink BWP with index number 0 and the downlink BWP with index number 0 are indicated by 000; the uplink BWP with index number 1 and the downlink BWP with index number 1 are indicated by 001; the index number is 2 with 010.
  • the indication information also needs to indicate the type of the BWP.
  • the BWP type indicates whether it is an uplink BWP or a downlink BWP.
  • the first field is a BWP indication field
  • the status value of the first field is "001”
  • the status value of the second field is “0”, indicating that the uplink BWP with index 1 is indicated.
  • the status value of the second field is "1", indicating that the downlink BWP with index 1 is indicated.
  • FIG. 10 shows a possible structural diagram of the above terminal device.
  • the terminal device includes a receiving unit 201, a processing unit 202, and a transmitting unit 203.
  • the receiving unit 201 is configured to support the terminal device to perform step 103 in the foregoing embodiment, and/or other processes for the techniques described herein.
  • the processing unit 202 is configured to support the terminal device to send uplink data to the network data, and/or other processes for the techniques described herein.
  • the sending unit 203 is configured to support the terminal device to perform step 104 in the foregoing embodiment, and/or other processes for the techniques described herein.
  • the terminal device includes a processing module 301 and a communication module 302.
  • the processing module 301 is configured to control and manage the actions of the terminal device, for example, to perform the steps performed by the processing unit 202 described above, and/or to perform other processes of the techniques described herein.
  • the communication module 302 is configured to support interaction between the terminal device and other devices, for example, performing the steps performed by the receiving unit 201 and the transmitting unit 203 described above.
  • the terminal device may further include a storage module 303, where the storage module 303 is configured to store program codes and data of the terminal device.
  • the terminal device may be the terminal device shown in FIG. 2.
  • the transceiver is a receiver and a transmitter, the receiver performs the steps performed by the receiving unit 201 described above, and the transmitter performs the steps performed by the transmitting unit 203.
  • the embodiment of the invention further provides a computer readable storage medium, wherein the computer readable storage medium stores instructions; when the computer readable storage medium runs on the network device shown in FIG. 2, FIG. 10, FIG.
  • the network device is configured to perform the foregoing steps 101-103 (ie, the bandwidth indication method shown in FIG. 3) in the embodiment of the present invention.
  • the embodiment of the present invention further provides a wireless communication device, where the wireless communication device stores instructions, and when the wireless communication device runs on the network device shown in FIG. 2, FIG. 10, and FIG. 11, the network device performs the implementation of the present invention.
  • the wireless communication device can be a chip.
  • FIG. 12 shows a possible structural diagram of the network device involved in the foregoing embodiment in the case where the respective functional modules are divided by corresponding functions.
  • the network device includes a processing unit 401 and a transmitting unit 402.
  • the processing unit 401 is configured to support the network device to perform step 101 in the above embodiments, and/or other processes for the techniques described herein.
  • the sending unit 402 is configured to support the network device to perform step 102 in the above embodiments, and/or other processes for the techniques described herein.
  • the network device includes a processing module 501 and a communication module 502.
  • the processing module 501 is for controlling management of actions of the network device, and/or other processes for performing the techniques described herein.
  • the communication module 502 is configured to support interaction between the network device and other devices, for example, performing the steps performed by the transmitting unit 402 described above.
  • the network device may further include a storage module 503, where the storage module 503 is configured to store program codes and data of the network device.
  • the network device is the network device shown in FIG.
  • the network device described with reference to FIG. 14 includes at least one processor 601, a memory 602, and a transceiver 603.
  • a set of codes is stored in the memory 602, and the processor 601 calls the code stored in the memory 602 to support the network device to perform the interference processing method provided by the embodiment of the present invention.
  • the transceiver is a receiver and a transmitter, the transmitter performs the steps performed by the transmitting unit 402.
  • a computer readable storage medium wherein instructions are stored in a computer readable storage medium; and when the computer readable storage medium is run on the terminal device shown in FIG. 12, FIG. 13, and FIG. 14, the terminal is caused
  • the device performs the above steps 101-103 (that is, the bandwidth indication method shown in FIG. 3) of the embodiment of the present invention.
  • a wireless communication device wherein the wireless communication device stores an instruction, and when the wireless communication device operates on the terminal device shown in FIG. 12, FIG. 13, and FIG. 14, the terminal device executes the embodiment of the present invention.
  • the wireless communication device may be a chip.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a solid state disk (SSD)).
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the modules or units is only a logical function division.
  • there may be another division manner for example, multiple units or components may be used.
  • the combination may be integrated into another device, or some features may be ignored or not performed.
  • 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 be one physical unit or multiple physical units, that is, may be located in one place, or may be distributed to multiple different places. . 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 processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a readable storage medium.
  • the technical solution of the embodiments of the present application may be embodied in the form of a software product in the form of a software product in essence or in the form of a contribution to the prior art, and the software product is stored in a storage medium.
  • a number of instructions are included to cause a device (which may be a microcontroller, chip, etc.) or a processor 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. .

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Abstract

本发明实施例提供一种带宽指示方法、网络设备及终端设备，涉及通信领域，网络设备能够指示信息中的字段指示BWP。包括：终端设备接收指示信息，指示信息用于指示终端设备接收网络设备发送的下行数据或向网络设备发送上行数据；进一步，指示信息包括第一字段，第一字段用于指示BWP。随后，终端设备可以激活或去激活第一字段指示的BWP。

Description

一种带宽指示方法、网络设备及终端设备
本申请要求于2017年11月17日提交中国专利局、申请号为201711148936.9、发明创造名称为“一种带宽指示方法、网络设备及终端设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明实施例涉及通信领域，尤其涉及一种带宽指示方法、网络设备及终端设备。
背景技术
在5G系统中，系统带宽很大，可以达到200MHz或者400MHz，一些终端支持不了这么大的带宽，因此基站可以给终端配置带宽部分(bandwidth part，BWP)，即支持基站和终端之间占用一带宽部分进行传输。例如：基站为终端配置了20MHz的BWP，终端可以在这20MHz的资源上与基站进行通信。
现有技术中，基站可以向终端发送一个指示信息，指示终端设备激活一个BWP。终端接收到这个指示信息后去激活当前激活状态的BWP，激活该指示信息指示的BWP，通过该指示信息指示的BWP与基站进行传输。
但是现有技术被并未涉及如何设计上述指示信息以使该信息指示激活或去激活BWP，也未涉及指示信息指示激活或去激活BWP的具体流程，基站无法切实地使用指示信息通知终端设备激活或去激活BWP，也就无法实现对终端设备的灵活调度。
发明内容
本申请提供一种带宽指示方法、网络设备及终端设备，使得网络设备能够切实地使用指示信息通知终端设备激活或去激活BWP，实现对终端设备的灵活调度。
为达到上述目的，本申请采用如下技术方案：
第一方面，公开了一种带宽指示方法，包括：网络设备生成指示信息，指示信息用于指示终端设备接收网络设备发送的下行数据或向网络设备发送上行数据；进一步，指示信息可以包括第一字段。该第一字段用于指示BWP；随后，网络设备向终端设备发送指示信息。
本发明实施例提供的方法中，网络设备可以通过指示信息(如：DCI)中的第一字段指示另一个BWP(可以是上行BWP或下行BWP)，终端接收该指示信息后，可以将当前激活的BWP去激活，将指示信息指示的BWP激活从而使得终端设备转换到该指示信息指示的BWP上接收下行数据或者发送上行数据。或者，可以在当前激活的多个BWP中去激活第一字段指示的BWP。如此，网络设备可以支持通过DL assignment或者UL grant信令激活或去激活下行BWP或者上行BWP，使得网络设备的调度更灵活。
结合第一方面，在第一方面的第一种可能的实现中，第一字段为资源分配字段、资源集合resource set指示字段、冗余版本RV字段、发射功率控制字段以及调制与编码策略MCS字段中的任意一个或多个。进一步，第一字段用于指示BWP，包括：第一字段的部分或全部用于指示BWP。
也就是说，还可以使用指示信息的已有字段来指示BWP，如此，在需要激活或去激活新的BWP时，可以利用这些字段来向终端设备指示需要激活或去激活的BWP，在不需要切换BWP时，即不需要改变当前激活的BWP，第一字段则指示其本身表征的信息。这样 不会对指示信息原本的信令格式造成改变，不会影响兼容性。
结合第一方面或第一方面的第一种可能的实现方式中，在第一方面的第二种可能的实现中，指示信息还包括第二字段；第二字段用于指示第一字段是否用于指示BWP。
也就是说，在使用指示信息的某个字段指示BWP时，需要向终端设备指示该字段能够指示BWP，这样终端设备接收指示信息后才可以在第一字段解码出第一字段所指示的BWP。
结合第一方面或以上第一方面的任意一种可能的实现方式中，在第一方面的第三种可能的实现中，第一字段为BWP指示字段。
也就是说，也可以在指示信息中新增一个字段，专门用于指示BWP。
结合第一方面或以上第一方面的任意一种可能的实现方式中，在第一方面的第四种可能的实现中，第一字段用于指示上行BWP，且指示信息还用于指示终端设备向网络设备发送上行数据；或，第一字段用于指示上行BWP，且指示信息还用于指示终端设备接收网络设备发送的下行数据；或，第一字段用于指示下行BWP，且指示信息还用于指示终端设备向网络设备发送上行数据；或，第一字段用于指示下行BWP，且指示信息还用于指示终端设备接收网络设备发送的下行数据。
也就是说，可以用调度上行数据的控制信令指示终端激活或去激活上行BWP，也可以用调度上行数据的控制信令指示终端激活或去激活下行BWP；可以用指示下行传输的控制信令指示终端激活或去激活上行BWP；也可以用指示下行传输的控制信令指示终端激活或去激活下行BWP。
结合第一方面或以上第一方面的任意一种可能的实现方式中，在第一方面的第五种可能的实现中，指示信息还用于指示BWP的类型；BWP的类型为上行BWP或下行BWP。
在一些实施例中，上行BWP和下行BWP的索引号可能相同，那么第一字段指示的一个索引号，可以是一个上行BWP的索引号，也可以是一个下行BWP的索引号。因此，还需要指示BWP的类型，以便终端设备确定指示信息指示的是上行BWP还是下行BWP。
结合第一方面或以上第一方面的任意一种可能的实现方式中，在第一方面的第六种可能的实现中，指示信息指示的BWP的类型，包括：指示信息包括BWP类型指示位。当BWP类型指示位为第一数值时，指示信息用于指示上行BWP；当BWP类型指示位为第二数值时，指示信息用于指示下行BWP。
也就是说还可以在指示信息中增加一个指示位，用来指示BWP的类型，使得终端设备可以明确激活或去激活上行BWP，还是激活或去激活下行BWP。
结合第一方面或以上第一方面的任意一种可能的实现方式中，在第一方面的第七种可能的实现中，指示信息指示的BWP的类型包括：当指示信息使用第一标识加扰时，指示信息用于指示上行BWP；或，当指示信息使用第二标识加扰时，指示信息用于指示下行BWP。
也就是说可以通过对指示信息不同的加扰方式来区分BWP的类型，使得终端设备可以明确激活或去激活上行BWP，还是激活或去激活下行BWP。
结合第一方面或以上第一方面的任意一种可能的实现方式中，在第一方面的第八种可能的实现中，指示信息指示的BWP的类型包括：当网络设备在第一搜索空间发送指示信息时，指示信息用于指示上行BWP；或，当网络设备在第二搜索空间发送指示信息时，指示信息用于指示下行BWP。
也就是说可以通过发送指示信息的搜索空间来区分BWP的类型，使得终端设备可以明确激活或去激活上行BWP，还是激活或去激活下行BWP。
结合第一方面或以上第一方面的任意一种可能的实现方式中，在第一方面的第九种可能的实现中，网络设备向终端设备发送指示信息之后，方法还包括：网络设备在第一字段指示激活的下行BWP上，发送下行数据；或，网络设备在第一字段指示激活的上行BWP上，接收终端设备发送的上行数据；或，网络设备在发送第一指示信息的下行BWP上，发送下行数据。当指示信息为指示下行传输的控制信令，这里的下行数据即为该指示信息指示传输的下行数据，当指示信息为调度上行传输的控制信令，上行数据为指示信息调度的上行数据。
也就是说，在终端设备可以指示信息切换到新的BWP上之后，再通过新的BWP根据指示信息接收下行数据或者根据指示信息发送上行数据。当然，终端设备也可以先在当前激活的BWP上根据指示信息接收下行数据或者根据指示信息发送上行数据，随后再切换至新的BWP。
第二方面，公开了一种带宽指示方法，包括：终端设备接收指示信息，指示信息用于指示终端设备接收网络设备发送的下行数据或向网络设备发送上行数据；进一步，指示信息包括第一字段，第一字段用于指示BWP。随后，终端设备可以激活或去激活第一字段指示的BWP。
本发明实施例提供的方法中，网络设备可以通过指示信息(如：DCI)中的第一字段指示另一个BWP(可以是上行BWP或下行BWP)，终端接收该指示信息后，可以将当前激活的BWP去激活，将指示信息指示的BWP激活从而使得终端设备转换到该指示信息指示的BWP上接收下行数据或者发送上行数据。或者，可以在当前激活的多个BWP中去激活第一字段指示的BWP。如此，网络设备可以支持通过DL assignment或者UL grant信令激活或去激活下行BWP或者上行BWP，使得网络设备的调度更灵活。
结合第二方面，在第二方面的第一种可能的实现中，第一字段为资源分配字段、资源集合resource set指示字段、冗余版本RV字段、发射功率控制字段以及调制与编码策略MCS字段中的任意一个或多个。进一步，第一字段用于指示BWP，包括：第一字段的部分或全部用于指示BWP。
也就是说，还可以使用指示信息的已有字段来指示BWP，如此，在需要激活去激活新的BWP时，可以利用这些字段来向终端设备指示需要激活或去激活的BWP，在不需要切换BWP时，即不需要改变当前激活的BWP，第一字段则指示其本身表征的信息。这样不会对指示信息原本的信令格式造成改变，不会影响兼容性。
结合第二方面或第二方面的第一种可能的实现方式中，在第二方面的第二种可能的实现中，指示信息还包括第二字段；第二字段用于指示第一字段是否用于指示BWP。
也就是说，在使用指示信息的某个字段指示BWP时，需要向终端设备指示该字段能够指示BWP，这样终端设备接收指示信息后才可以在第一字段解码出第一字段所指示的BWP。
结合第二方面或以上第一方面的任意一种可能的实现方式中，在第二方面的第三种可能的实现中，第一字段为BWP指示字段。
也就是说，也可以在指示信息中新增一个字段，专门用于指示BWP。
结合第二方面或以上第一方面的任意一种可能的实现方式中，在第二方面的第四种可 能的实现中，第一字段用于指示上行BWP，且指示信息还用于指示终端设备向网络设备发送上行数据；或，第一字段用于指示上行BWP，且指示信息还用于指示终端设备接收网络设备发送的下行数据；或，第一字段用于指示下行BWP，且指示信息还用于指示终端设备向网络设备发送上行数据；或，第一字段用于指示下行BWP，且指示信息还用于指示终端设备接收网络设备发送的下行数据。
也就是说，可以用调度上行数据的控制信令指示终端激活或去激活上行BWP，也可以用调度上行数据的控制信令指示终端激活或去激活下行BWP；可以用指示下行传输的控制信令指示终端激活或去激活上行BWP；也可以用指示下行传输的控制信令指示终端激活或去激活下行BWP。
结合第二方面或以上第一方面的任意一种可能的实现方式中，在第二方面的第五种可能的实现中，指示信息还用于指示的BWP的类型；BWP的类型为上行BWP或下行BWP。
在一些实施例中，上行BWP和下行BWP的索引号可能相同，那么第一字段指示的一个索引号，可以是一个上行BWP的索引号，也可以是一个下行BWP的索引号。因此，还需要指示BWP的类型，以便终端设备确定指示信息指示的是上行BWP还是下行BWP。
结合第二方面或以上第一方面的任意一种可能的实现方式中，在第二方面的第六种可能的实现中，指示信息指示的BWP的类型，包括：指示信息包括BWP类型指示位。当BWP类型指示位为第一数值时，指示信息用于指示上行BWP；当BWP类型指示位为第二数值时，指示信息用于指示下行BWP。
也就是说还可以在指示信息中增加一个指示位，用来指示BWP的类型，使得终端设备可以明确激活或去激活上行BWP，还是激活或去激活下行BWP。
结合第二方面或以上第一方面的任意一种可能的实现方式中，在第二方面的第七种可能的实现中，指示信息指示的BWP的类型包括：当指示信息使用第一标识加扰时，指示信息用于指示上行BWP；或，当指示信息使用第二标识加扰时，指示信息用于指示下行BWP。
也就是说可以通过对指示信息不同的加扰方式来区分BWP的类型，使得终端设备可以明确激活或去激活上行BWP，还是激活或去激活下行BWP。
结合第二方面或以上第一方面的任意一种可能的实现方式中，在第二方面的第八种可能的实现中，指示信息指示的BWP的类型包括：当终端设备在第一搜索空间接收指示信息时，指示信息用于指示上行BWP；或，当终端设备在第二搜索空间接收指示信息时，指示信息用于指示下行BWP。
也就是说可以通过发送指示信息的搜索空间来区分BWP的类型，使得终端设备可以明确激活或去激活上行BWP，还是激活或去激活下行BWP。
结合第二方面或以上第一方面的任意一种可能的实现方式中，在第二方面的第九种可能的实现中，方法还包括：终端设备激活第一字段指示的BWP之后，终端设备在第一字段指示激活的下行BWP上，接收下行数据；或，终端设备激活第一字段指示的BWP之后，终端设备在第一字段指示激活的上行BWP上，向终端设备发送上行数据；或，终端设备激活或去激活第一字段指示的BWP之前或之后，在发送第一指示信息的下行BWP上，接收网络设备发送的下行数据。当指示信息为指示下行传输的控制信令，这里的下行数据即为该指示信息指示传输的下行数据，当指示信息为调度上行传输的控制信令，上行数据为指示信息调度的上行数据。
也就是说，在终端设备可以指示信息切换到新的BWP上之后，再通过新的BWP根据指示信息接收下行数据或者根据指示信息发送上行数据。当然，终端设备也可以先在当前激活的BWP上根据指示信息接收下行数据或者根据指示信息发送上行数据，随后再切换至新的BWP。
第三方面，公开了一种网络设备，包括：处理单元，用于生成指示信息，指示信息包括第一字段，第一字段用于指示带宽部分BWP；指示信息用于指示终端设备接收网络设备发送的下行数据或向网络设备发送上行数据。发送单元，用于向终端设备发送指示信息。
结合第三方面，在第三方面的第一种可能的实现方式中，第一字段为资源分配字段、资源集合resource set指示字段、冗余版本RV字段、发射功率控制字段以及调制与编码策略MCS字段中的任意一个或多个；第一字段用于指示BWP，包括：第一字段的部分或全部用于指示BWP。
结合第三方面或第三方面的第一种可能的实现方式，在第三方面的第二种可能的实现方式中，指示信息还包括第二字段；第二字段用于指示第一字段是否用于指示BWP。
结合第三方面或以上第三方面的任意第一种可能的实现方式，在第三方面的第三种可能的实现方式中，第一字段为BWP指示字段。
结合第三方面或以上第三方面的任意第一种可能的实现方式，在第三方面的第四种可能的实现方式中，第一字段用于指示上行BWP，且指示信息还用于指示终端设备向网络设备发送上行数据；或，第一字段用于指示上行BWP，且指示信息还用于指示终端设备接收网络设备发送的下行数据；或，第一字段用于指示下行BWP，且指示信息还用于指示终端设备向网络设备发送上行数据；或，第一字段用于指示下行BWP，且指示信息还用于指示终端设备接收网络设备发送的下行数据。
结合第三方面或以上第三方面的任意第一种可能的实现方式，在第三方面的第五种可能的实现方式中，指示信息还用于指示的BWP的类型；BWP的类型为上行BWP或下行BWP。
结合第三方面或以上第三方面的任意第一种可能的实现方式，在第三方面的第六种可能的实现方式中，指示信息指示的BWP的类型，包括：指示信息包括BWP类型指示位；当BWP类型指示位为第一数值时，指示信息用于指示上行BWP；当BWP类型指示位为第二数值时，指示信息用于指示下行BWP。
结合第三方面或以上第三方面的任意第一种可能的实现方式，在第三方面的第七种可能的实现方式中，指示信息指示的BWP的类型包括：当指示信息使用第一标识加扰时，指示信息用于指示上行BWP；或，当指示信息使用第二标识加扰时，指示信息用于指示下行BWP。
结合第三方面或以上第三方面的任意第一种可能的实现方式，在第三方面的第八种可能的实现方式中，指示信息指示的BWP的类型包括：当网络设备在第一搜索空间发送指示信息时，指示信息用于指示上行BWP；或，当网络设备在第二搜索空间发送指示信息时，指示信息用于指示下行BWP。
结合第三方面或以上第三方面的任意第一种可能的实现方式，在第三方面的第九种可能的实现方式中，发送单元还用于，向终端设备发送指示信息之后，在第一字段指示激活的下行BWP上，发送下行数据；或，在第一字段指示激活的上行BWP上，接收终端设备发送的上行数据；或，在发送第一指示信息的下行BWP上，发送下行数据。
第四方面，公开了一种终端设备，包括：接收单元，用于接收指示信息；指示信息包括第一字段，第一字段用于指示带宽部分BWP；指示信息用于指示终端设备接收网络设备发送的下行数据或向网络设备发送上行数据；处理单元，用于激活或去激活第一字段指示的BWP。
结合第四方面，在第四方面的第一种可能的实现方式中，第一字段为资源分配字段、资源集合resource set指示字段、冗余版本RV字段、发射功率控制字段以及调制与编码策略MCS字段中的任意一个或多个；第一字段用于指示BWP，包括：第一字段的部分或全部用于指示BWP。
结合第四方面或第四方面的第一种可能的实现，在第四方面的第二种可能的实现方式中，指示信息还包括第二字段；第二字段用于指示第一字段是否用于指示BWP。
结合第四方面或以上第四方面的任意一种可能的实现，在第四方面的第三种可能的实现方式中，第一字段为BWP指示字段。
结合第四方面或以上第四方面的任意一种可能的实现，在第四方面的第四种可能的实现方式中，第一字段用于指示上行BWP，且指示信息还用于指示终端设备向网络设备发送上行数据；或，第一字段用于指示上行BWP，且指示信息还用于指示终端设备接收网络设备发送的下行数据；或，第一字段用于指示下行BWP，且指示信息还用于指示终端设备向网络设备发送上行数据；或，第一字段用于指示下行BWP，且指示信息还用于指示终端设备接收网络设备发送的下行数据。
结合第四方面或以上第四方面的任意一种可能的实现，在第四方面的第五种可能的实现方式中，指示信息还用于指示的BWP的类型；BWP的类型为上行BWP或下行BWP。
结合第四方面或以上第四方面的任意一种可能的实现，在第四方面的第六种可能的实现方式中，指示信息指示的BWP的类型包括：指示信息包括BWP类型指示位；当BWP类型指示位为第一数值时，指示信息用于指示上行BWP；当BWP类型指示位为第二数值时，指示信息用于指示下行BWP。
结合第四方面或以上第四方面的任意一种可能的实现，在第四方面的第七种可能的实现方式中，指示信息指示的BWP的类型包括：当指示信息使用第一标识加扰时，指示信息用于指示上行BWP；或，当指示信息使用第二标识加扰时，指示信息用于指示下行BWP。
结合第四方面或以上第四方面的任意一种可能的实现，在第四方面的第八种可能的实现方式中，指示信息指示的BWP的类型包括：当终端设备在第一搜索空间接收指示信息时，指示信息用于指示上行BWP；或，当终端设备在第二搜索空间接收指示信息时，指示信息用于指示下行BWP。
结合第四方面或以上第四方面的任意一种可能的实现，在第四方面的第九种可能的实现方式中，接收单元还用于，在处理单元激活第一字段指示的BWP之后，终端设备在第一字段指示激活的下行BWP上，接收下行数据；或，在处理单元激活或去激活在发送第一指示信息的下行BWP上，接收网络设备发送的下行数据。还包括发送单元，用于在处理单元激活第一字段指示的BWP之后，在第一字段指示激活的上行BWP上，向终端设备发送上行数据。
第五方面，公开了一种网络设备，包括：收发器、处理器以及存储器；存储器中存储有代码，处理器用于调用存储器中的代码执行上述第一方面以及第一方面任意一种可能的实现方式所述的带宽指示方法。
第六方面，公开了一种计算机可读存储介质，计算机可读存储介质中存储有指令；当计算机可读存储介质在上述第三方面及第三方面任意一项所述的网络设备上运行时，使得该网络设备执行上述第一方面以及第一方面任意一种可能的实现方式所述的带宽指示方法。
第七方面，公开了一种无线通信装置，无线通信装置中存储有指令，当无线通信装置在上述第三方面及第三方面任意一项所述的网络设备上运行时，使得该网络设备执行上述第一方面以及第一方面任意一种可能的实现方式所述的带宽指示方法。该无线通信装置为芯片。
第八方面，公开了一种终端设备，包括：收发器、处理器以及存储器；存储器中存储有代码，处理器用于调用存储器中的代码执行上述第二方面以及第二方面任意一种可能的实现方式所述的带宽指示方法。
第九方面，公开了一种计算机可读存储介质，计算机可读存储介质中存储有指令；当计算机可读存储介质在上述第四方面以及第四方面任意一项所述的终端设备上运行时，使得终端设备执行上述第二方面以及第二方面任意一种可能的实现方式所述的带宽指示方法。
第十方面，公开了一种无线通信装置，无线通信装置中存储有指令，当无线通信装置在上述第四方面以及第四方面任意一项所述的终端设备上运行时，使得终端设备执行上述第二方面以及第二方面任意一种可能的实现方式所述的带宽指示方法；无线通信装置为芯片。
第十一方面，公开了一种网络系统，包括网络设备和终端设备，网络设备生成指示信息，并向终端设备发送指示信息；其中，指示信息包括第一字段，第一字段用于指示带宽部分BWP；指示信息用于指示终端设备接收网络设备发送的下行数据或向网络设备发送上行数据；终端设备接收指示信息，并激活或去激活第一字段指示的BWP。所述网络设备为上述第三方面及第三方面任意一项所述的网络设备，所述终端设备为上述第四方面以及第四方面任意一项所述的终端设备。
第十二方面，公开了一种网络切换方法，包括：网络设备生成指示信息，指示信息可以用于指示所述终端设备接收所述网络设备发送的下行数据或向所述网络设备发送上行数据。进一步，该指示信息包括第一字段，该第一字段用于指示带宽部分BWP。网络设备还可以向终端设备发送上述指示信息。所述终端设备接收网络设备发送的指示信息，还可以激活或去激活所述第一字段指示的BWP。
附图说明
图1为现有的通信系统示意图；
图2为本发明实施例提供的终端设备的结构示意图；
图3为本发明实施例提供的带宽指示方法的流程示意图；
图4为现有的资源组的频域示意图；
图5为本发明实施例提供的BWP切换示意图；
图6为本发明实施例提供的BWP切换另一示意图；
图7为本发明实施例提供的BWP切换另一示意图；
图8为本发明实施例提供的BWP索引号的示意图；
图9为本发明实施例提供的BWP索引号的另一示意图；
图10为本发明实施例提供的终端设备的另一结构示意图；
图11为本发明实施例提供的终端设备的另一结构示意图；
图12为本发明实施例提供的网络设备的结构示意图；
图13为本发明实施例提供的网络设备的另一结构示意图；
图14为本发明实施例提供的网络设备的另一结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行详细地描述。
5G中网络设备可以为终端设备配置带宽部分BWP，终端设备和网络设备可以占用该BWP指示的一带宽部分进行传输。BWP可以分为下行(down link，DL)BWP和上行(up link，UL)BWP，网络设备通过下行BWP向终端设备发送下行数据，终端设备通过上行BWP向网络设备发送上行数据。
网络设备可以为终端设备配置多个下行BWP以及多个上行BWP，并且激活至少一个下行BWP和激活至少一个上行BWP，终端设备可以在激活的下行BWP上接收基站发送的下行数据，如：下行控制信令，下行用户数据等；终端可以在激活的上行BWP上发送上行数据，如：上行控制信令，数据，(scheduling request，SR)，(sounding reference symbol，SRS)，(channel state information，CSI)反馈、(channel quality indicator，CQI)反馈等。
图1是本发明实施例提供的通信系统，该系统可以是5G系统，也可以是其它的通信系统，只要该通信系统中存在实体需要发送上行数据，另一个实体需要接收上行数据，或者存在实体需要发送下行数据，另一个实体需要接收下行数据即可。
通常，通信系统中包括网络设备和多个终端设备，其中，网络设备可以是基站(Base station)，终端设备可以是用户设备(user equipment，UE)。如图1所示，基站可以对服务小区内的UE进行上行数据调度或下行数据调度。所谓上行数据调度即基站可以通过调度数据的控制信令向UE通知用于上行传输的资源，如：UE可以在哪个时间哪个载波上向基站传输上行数据，以及发送上行数据采用的调制编码方式。所谓下行数据调度即基站可以通过调度数据的控制信令向UE通知用于下传传输的资源，如：UE可以在哪个时间哪个载波上接收基站发送的下行数据，以及基站发送下行数据所采用的调制编码方式。
需要说明的是，通常可以利用下行控制信令(downlink control information，DCI)进行上行数据调度或下行数据调度。DCI是一种控制信令，通常由下行物理控制信道(physical downlink control channel，PDCCH)承载。基站发给UE的下行控制信息，包括上、下行资源分配、HARQ信息、或功率控制等。
本发明实施例提供一种带宽指示方法，网络设备可以通过指示信息(如：上述DCI)中的第一字段指示另一个BWP(可以是上行BWP或下行BWP)，从而使得UE转换到该指示信息指示的BWP上接收下行数据或者发送上行数据，即UE可以将当前激活的BWP去激活，将指示信息指示的BWP激活。或者，UE不改变当前激活的BWP，只是将指示信息指示的BWP激活，又或者，UE可以在当前激活的多个BWP中去激活指示信息指示的BWP。如此，网络设备可以支持通过DL assignment或者UL grant信令激活或去激活下行BWP或者上行BWP，使得网络设备的调度更灵活。
本发明实施例提供的带宽指示方法可以应用于终端设备，所述终端设备可以是图1所示系统中的UE。如图2所示，该终端设备可以包括至少一个处理器11，存储器12、收发器13以及通信总线14。
下面结合图2对该终端设备的各个构成部件进行具体的介绍：
处理器11是终端设备的控制中心，可以是一个处理器，也可以是多个处理元件的统称。例如，处理器11是一个中央处理器(central processing unit，CPU)，也可以是特定集成电路(Application Specific Integrated Circuit，ASIC)，或者是被配置成实施本发明实施例的一个或多个集成电路，例如：一个或多个微处理器(digital signal processor，DSP)，或，一个或者多个现场可编程门阵列(Field Programmable Gate Array，FPGA)。
其中，处理器11可以通过运行或执行存储在存储器12内的软件程序，以及调用存储在存储器12内的数据，执行终端设备的各种功能。
在具体的实现中，作为一种实施例，处理器11可以包括一个或多个CPU，例如图2中所示的CPU0和CPU1。
在具体实现中，作为一种实施例，终端设备可以包括多个处理器，例如图2中所示的处理器11和处理器15。这些处理器中的每一个可以是一个单核处理器(single-CPU)，也可以是一个多核处理器(multi-CPU)。这里的处理器可以指一个或多个设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。
存储器12可以是只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)或者可存储信息和指令的其他类型的动态存储设备，也可以是电可擦可编程只读存储器(Electrically Erasable Programmable Read-Only Memory，EEPROM)、只读光盘(Compact Disc Read-Only Memory，CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。存储器12可以是独立存在，通过通信总线14与处理器11相连接。存储器12也可以和处理器11集成在一起。
其中，所述存储器12用于存储执行本发明方案的软件程序，并由处理器11来控制执行。
收发器13，使用任何收发器一类的装置，用于与图1系统中的其他设备间的通信，如图1中的基站或其他UE等。还可以用于与通信网络通信，如以太网，无线接入网(radio access network，RAN)，无线局域网(Wireless Local Area Networks，WLAN)等。收发器13可以包括接收单元实现接收功能，以及发送单元实现发送功能。
通信总线14，可以是工业标准体系结构(Industry Standard Architecture，ISA)总线、外部设备互连(Peripheral Component，PCI)总线或扩展工业标准体系结构(Extended Industry Standard Architecture，EISA)总线等。该总线可以分为地址总线、数据总线、控制总线等。为便于表示，图2中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
图2中示出的设备结构并不构成对终端设备的限定，可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。
本发明实施例提供一种带宽指示方法，应用于图1所示的通信系统，如图3所示，所述方法包括以下步骤：
101、网络设备生成指示信息，所述指示信息包括第一字段，所述第一字段用于指示BWP；所述指示信息用于指示所述终端设备接收所述网络设备发送的下行数据或向所述网络设备发送上行数据。
具体实现中，所述指示信息可以调度上行数据的控制信令，或指示下行传输的控制信令，如：DCI。BWP可以分为上行BWP和下行BWP，每一个BWP有一个索引号(index)，上行BWP和下行BWP的索引号可以相同，也可以不同，本发明实施例对此不做限定。在本发明实施例中，第一字段可以用于指示BWP的索引号。示例的，第一字段指示了索引号X，基站则可以通过向终端设备发送指示信息指示索引号为X的BWP。
本发明实施例中，基站可以通过第一字段指示一个BWP的索引号来指示终端设备激活或去激活一个BWP，进而对终端设备激活的BWP进行控制。
需要说明的是，第一字段可以是指示信息中的资源分配(resource allocation)字段、资源集合(resource set)指示字段、冗余版本(redundant version，RV)字段、发射功率控制字段以及调制与编码策略MCS字段中的任意一个或多个。
进一步，如果第一字段为上述字段中的一个或多个，第一字段的全部或部分用于指示BWP。示例的，第一字段为长20比特的资源分配字段，假设有4个上行BWP和4个下行BWP共8个BWP，可以用log 2 8＝3比特来指示BWP的索引号，那么可以用资源分配字段的20个比特中的3比特来指示BWP的索引号。
在一些实施例中，如果使用指示信息中的已有字段(如：上述资源分配字段等)来指示BWP，则指示信息还可以包括第二字段，第二字段用于指示所述第一字段是否用于指示BWP。示例的，第二字段可以是1比特，当第二字段的状态为“0”时，表示第一字段是不用于指示BWP，也就是说不使用第一字段指示BWP的索引号，第一字段仅仅用于指示其原本表征的信息，例如：资源分配字段仅仅用于指示频域和/或时域资源的分配情况。当第二字段的状态为“1”时，表示第一字段是还可以指示BWP。当然，第二字段的状态值“0”或“1”所代表的含义不仅仅限于以上实现方式，还可以有其他实现方式，例如，“1”表示表示第一字段是不用于指示BWP，“0”表示表示第一字段是还可以指示BWP。本发明实施例对此不作限定。
另外，还可以通过指示信息的其他特征来指示是否使用指示信息的第一字段指示BWP的index。示例的，使用不同的搜索空间(search space)来区分第一字段是否用于指示BWP的index。如：网络设备使用搜索空间A来发送指示信息则表示使用第一字段指示BWP的index，当终端设备在搜索空间A接收到网络设备发送的指示信息，则可以确定第一字段用于指示BWP的index。
或者，网络设备使用不同的标识加扰DCI或者DCI中的循环冗余校验(Cyclic Redundancy Check，CRC)区分第一字段是否用于指示BWP的index，如：网络设备使用某个标识加扰DCI或者DCI中的CRC则表示第一字段用于指示BWP的index，示例的，该标识可以为RNTI。
又或者，网络设备使用不同的CRC校验码，区分第一字段是否用于指示BWP的index，网络设备使用CRC校验码—A，则表示第一字段用于指示BWP的index。
在一些实施例中，第一字段还可以是BWP指示字段，即在指示信息中新增一个专门用于指示激活或去激活BWP的字段，这个字段可以用于指示BWP的索引号。
具体实现中，无论第一字段是指示信息中已有字段，还是指示信息中新增的PWP指 示字段，网络设备通过第一指示信息以及第一字段指示BWP具体可以包括以下四种情况：
所述第一字段用于指示上行BWP，且所述指示信息还用于指示所述终端设备向所述网络设备发送上行数据。也就是说，网络设备通过调度上行数据的DCI指示上行BWP。
或，所述第一字段用于指示上行BWP，且所述指示信息还用于指示所述终端设备接收所述网络设备发送的下行数据；也就是说，网络设备通过调度下行数据的DCI指示上行BWP。
或，所述第一字段用于指示下行BWP，且所述指示信息还用于指示所述终端设备向所述网络设备发送上行数据。也就是说，网络设备通过调度上行数据的DCI指示下行BWP。
或，所述第一字段用于指示下行BWP，且所述指示信息还用于指示所述终端设备接收所述网络设备发送的下行数据。也就是说，网络设备通过调度下行数据的DCI指示下行BWP。
102、所述网络设备向所述终端设备发送所述指示信息。
具体实现中，网络设备可以通过当前激活的下行BWP向所述终端设备发送所述指示信息。其中，当前激活的下行BWP可以是终端设备接收所述指示信息的下行BWP。
103、所述终端设备接收所述指示信息，激活或去激活所述第一字段指示的BWP。
具体地，所述终端设备也可以通过当前激活的下行BWP接收所述网络设备发送的指示信息。
需要说明的是，网络设备通常可以为终端设备配置多个下行BWP以及多个上行BWP，并只允许终端设备激活一个下行BWP和一个上行BWP。在此场景下，第一字段可以指示激活一个BWP。具体地，网络设备可以通过指示信息中的第一字段指示一个BWP的索引号，指示终端将当前激活的BWP去激活，将该索引号指示的BWP激活。需要说明的是，这里“当前激活的BWP”可以是当前激活的下行BWP，即终端设备接收指示信息的下行BWP，也可以当前激活的上行BWP。即终端设备在步骤101之前最后一次传输上行数据的上行BWP。如果指示信息的第一字段指示的是一个上行BWP，终端则将当前激活的上行BWP去激活，激活第一字段指示的上行BWP。如果指示信息的第一字段指示的是一个下行BWP，终端则将当前激活的下行BWP去激活，激活第一字段指示的下行BWP。
第二种场景下，允许终端设备激活多个下行BWP和多个上行BWP。此时，如果指示信息指示的是上行BWP，那么终端设备则会改变该指示信息指示的上行BWP的状态。具体地，如果在接收该指示信息之前，该指示信息指示的上行BWP为激活状态，那么终端接收该指示信息后则去激活该指示信息指示的上行BWP。如果在接收该指示信息之前，该指示信息指示的上行BWP为去激活状态，那么终端接收该指示信息后则激活该指示信息指示的上行BWP。
另外，在第二种场景下，如果指示信息指示的是下行BWP，且该下行BWP是终端设备接收该指示信息的下行BWP，那么终端设备接收该指示信息后不执行激活或去激活BWP的操作。如果指示信息指示的是下行BWP，且该下行BWP不是终端设备接收该指示信息的下行BWP，那么终端设备则会改变该指示信息指示的下行BWP的状态。具体地，如果在接收该指示信息之前，该指示信息指示的下行BWP为激活状态，那么终端接收该指示信息后则去激活该指示信息指示的下行BWP。如果在接收该指示信息之前，该指示信息指示的下行BWP为去激活状态，那么终端接收该指示信息后则激活该指示信息指示的下行BWP。
示例的，终端设备接收指示信息之前，终端设备激活的下行BWP的索引号为4、6，且终端通过索引号为6的下行BWP接收该指示信息。如果指示信息指示的是索引号为6的下行BWP，那么终端设备不执行激活或去激活的操作。
如果指示信息指示的不是索引号为6的下行BWP，如索引号为7的下行BWP，那么终端设备激活引号为7的下行BWP。或者，如果指示信息指示的是索引号为4的下行BWP，终端设备则去激活索引号为4的下行BWP。
具体实现中，终端设备接收指示信息后，解析指示信息，确定出指示信息指示的BWP的index。可以先在当前激活的下行BWP上，根据所述指示信息接收网络设备发送的下行数据或者先在当前激活的上行BWP上向所述网络设备发送上行数据，随后再切换至指示信息指示的BWP上进行后续的数据传输。
示例的，假设第一字段指示的是一个下行BWP，网络设备可以在步骤103之前或之后，在发送所述第一指示信息的下行BWP(即当前激活的下行BWP)上发送下行数据，终端设备在该下行BWP上接收下行数据。之后终端设备再切换至第一字段指示的激活的下行BWP上。
假设第一字段指示的是一个上行BWP，那么终端设备可以在步骤103之前或之后，利用步骤101之前最后一次发送上行数据的上行BWP(即当前激活的BWP)向网络设备发送上行数据。之后终端设备再切换至第一字段指示的激活的上行BWP上。
当然，终端设备也可以在解析指示信息后，先切换至指示信息指示的BWP，然后在新的BWP上，根据所述指示信息接收网络设备发送的下行数据或向网络设备发送上行数据。
示例的，假设第一字段指示的是下行BWP，步骤103之后，网络设备在所述第一字段指示激活的下行BWP上，发送下行数据，终端设备在所述第一字段指示激活的下行BWP上接收网络设备发送的下行数据。
假设第一字段指示的是上行BWP，步骤103之后，终端设备在所述第一字段指示激活的上行BWP上，向网络设备发送的上行数据。
需要说明的是，如果上行BWP和下行BWP的索引号互不相同，也就是一个索引号可以唯一指示一个上行BWP或下行BWP。这种场景下，第一字段可以唯一指示一个上行BWP或一个下行BWP。示例的，配置有四个上行BWP，索引号分别为0～3，同时配置有四个下行BWP，索引号分别为4～7，用3比特可以指示索引号，这3比特的某个状态值唯一对应一个索引号，即唯一对应一个上行BWP或下行BWP。如：3比特的状态值为“000”指示索引号为0的BWP，是一个上行BWP，3比特的状态值为“110”指示索引号为6的BWP，是一个下行BWP。其中，3比特可以是第一字段的全部，即第一字段为BWP指示字段，3比特也可以是第一字段的部分或全部，即第一字段为指示信息的已有字段，使用这些字段指示BWP。
如果上行BWP和下行BWP的索引号全部相同或部分相同，也就是一个索引号有可能指示一个上行BWP和一个下行BWP。这种场景下，第一字段不能唯一指示一个上行BWP或一个下行BWP。此时需要联合第一指示字段和指示信息的其他特征来确定指示信息指示的究竟是上行BWP还是行BWP。示例的，配置有四个上行BWP，索引号分别为0～3，同时配置有四个下行BWP，索引号分别为0～3，用2比特可以指示索引号，这2比特的某个状态值对应一个索引号，即该索引号不能区分是对应一个上行BWP还是对应一个下行BWP。如：2比特的状态值为“00”指示索引号为0的BWP，可以是索引号为0的一个上 行BWP，也可以是索引号为0的一个下行BWP。也就是说，这种场景下第一字段指示的是两个不同类型的BWP，还需要联合第一指示信息的其他特征来向终端设备指示BWP的类型，即第一字段指示的BWP是上行BWP还是下行BWP。也就是说，所述指示信息还可以用于指示BWP的类型。
进一步，网络设备可以通过以下三种方式来指示BWP的类型，具体地：
第一、在指示信息中增加BWP类型指示位来指示BWP的类型，BWP类型指示位的长度可以为1比特。
当所述BWP类型指示位为第一数值时，所述指示信息用于指示上行BWP；当所述BWP类型指示位为第二数值时，所述指示信息用于指示下行BWP。
示例的，BWP类型指示位为“0”，说明第一字段指示的是上行BWP；BWP类型指示位为“1”，说明第一字段指示的是下行BWP。或者，BWP类型指示位为“1”，说明第一字段指示的是上行BWP；BWP类型指示位为“0”，说明第一字段指示的是下行BWP。当然，BWP类型指示位的状态值“0”或“1”所代表的含义不仅仅限于以上实现方式，还可以有其他实现方式，本发明实施例对此不作限定。
第二、通过对指示信息不同的加扰方式来指示BWP的类型。
当所述指示信息使用第一标识加扰时，所述指示信息用于指示上行BWP；或，当所述指示信息使用第二标识加扰时，所述指示信息用于指示下行BWP。
需要说明的是，该第一标识或者第二标识可以对指示信息的DCI进行加扰，或者对指示信息的DCI中的CRC进行加扰，本发明实施例对此不作限定。
当然，网络设备也可以通过某个特定的标识来指示一个BWP类型，如：利用A(代表一个标识)对指示信息加扰，则所述指示信息指示的是上行BWP。终端设备接收指示信息后，通过识别指示信息的加扰方式，可以确定指示信息所指示的BWP的类型。
示例的，第一标识和第二标识可以为第一无线网络临时标识(radio network temporary identifier，RNTI)和第二RNTI，还可以为其他标识，本发明实施例对此不作限定。
具体实现中，网络设备可以通过指无线资源控制(radio resource control，RRC)信令向终端设备通知标识和BWP类型的对应关系，也可以通过广播信令向终端设备通知标识和BWP类型的对应关系，当然也可以在协议标准中规定标识和BWP类型的对应关系。另外，向终端设备通知标识和BWP类型的对应关系时，可以通知一个标识和一个offset，终端设备可以根据一个标识和一个offset确定出另一个标识。示例的，向终端设备通知：标识A对应上行BWP以及offset，终端设备可以根据标识A和offset确定另外一个标识B，进而确定标识B对应下行BWP。
第三、通过不同的搜索空间来指示BWP的类型。
所谓搜索空间(search space)指的是多个物理下行控制信道(Physical Downlink Control Channel，PDCCH)的集合，终端设备可以在搜索空间内进行盲检测，即对各种可能的PDCCH进行盲解码。
当所述网络设备在第一搜索空间发送所述指示信息时，所述指示信息用于指示上行BWP；或，当所述网络设备在第二搜索空间发送所述指示信息时，所述指示信息用于指示下行BWP。
当然，网络设备也可以通过某个特定的搜索空间来指示一个BWP类型，如：利用B(代表一个搜索空间)发送指示信息，则所述指示信息指示上行BWP。如果终端设备在对 搜索空间B进行盲检测，解码出了网络设备发送的指示信息，则可以确定指示信息指示BWP的类型为上行BWP。
本发明实施例中，可以使用不同的用户设备专用搜索空间(user equipment special search space，UESS)来区分指示信息的第一字段指示的是上行BWP还是下行BWP。示例的，如果网络设备指示上行BWP，则使用第一UESS发送指示信息，如果网络设备指示下行BWP，则使用第二UESS发送指示信息。终端设备在第一UESS进行盲检测解码出所述指示信息，则确定网络设备指示上行BWP，终端设备在第二UESS进行盲检测解码出所述指示信息，则确定网络设备指示下行BWP。进一步，可以根据指示信息的第一字段确定所指示的BWP的索引号。
具体实现中，网络设备可以通过指无线资源控制(radio resource control，RRC)信令向终端设备通知搜索空间和BWP类型的对应关系，也可以通过广播信令向终端设备通知搜索空间和BWP类型的对应关系，当然也可以在协议标准中规定搜索空间和BWP类型的对应关系。另外，向终端设备通知搜索空间和BWP类型的对应关系时，可以通知一个搜索空间和一个offset，终端设备可以根据一个搜索空间和一个offset确定出另一个搜索空间。示例的，向终端设备通知：搜索空间A对应上行BWP以及offset，终端设备可以根据搜索空间A和offset确定另外一个搜索空间B，进而确定搜索空间B对应下行BWP。
需要说明的是，在同一时刻只允许终端设备激活一个下行BWP和一个上行BWP的场景下，如果第一字段指示的是终端设备当前激活的下行BWP或终端设备当前激活的上行BWP，终端设备则忽略第一字段的指示且在接收指示信息后不执行激活或去激活的操作，后续仍在当前激活的下行BWP接收网络设备发送的下行数据，或，在当前激活的上行BWP向网络设备发送上行数据。
本发明实施例提供的带宽指示方法中，网络设备生成指示信息，指示信息用于指示终端设备向网络设备发送上行数据或接收网络设备发送的下行数据。进一步，指示信息的第一字段可以指示另一个BWP(可以是上行BWP或下行BWP)。终端接收网络设备发送的指示信息后，可以将当前激活的BWP去激活，激活第一字段指示的BWP，从而使得UE转换到该指示信息指示的BWP上接收下行数据或者发送上行数据。或者，终端设备也可以在当前激活的多个BWP中去激活第一字段指示的BWP。如此，网络设备可以支持通过DL assignment或者UL grant信令激活或去激活下行BWP或者上行BWP，使得网络设备的调度更灵活。
在本发明实施例中，可以使用指示信息已有的第一字段指示BWP的index。当指示调度当前激活的BWP中的数据，即不需要激活其他BWP时，实际上是没必要向终端设备指示当前激活的BWP的index。此时，第一字段指示自己本来表征的信息；当指示调度其他BWP中的数据，即需要激活其他BWP时，第一字段可以用来指示被激活的BWP的index。
以下详细使用哪些字段指示BWP的index，以及如何使用这些字段指示BWP的index。具体地：
第一、使用资源分配(resource allocation，RA)字段的部分来指示BWP的index。也就是说通过RA字段的部分比特来指示BWP的index，RA字段中的这些比特不再指示其原本表征的信息，如：资源分配情况。
示例的，以RA字段用于指示频域资源为例，使用frequency resource allocation type 0指示频域资源，频域资源以物理资源块组(resource block group，RBG)为单位，通过bitmap 来指示某个UE的资源分配情况。如：当前频域资源一共有20个RBG，那么就用20个bit来指示频域资源分配情况，每个bit对应一个RBG。一个RBG对应的一个bit的状态值为“1”代表该RBG的分配情况为：被分配给了UE(即本发明实施例所述的终端设备)，状态值为“0”代表该RBG的分配情况为：未被分配给该UE。
假设配置了4个BWP，包括2个上行BWP和2个下行BWP，并且4个BWP的index互不相同，那么可以使用2bits来指示BWP的index。进一步，可以使用RA字段的前2个bit来指示BWP的index。
此时，默认RA字段的前2个bit对应的两个RGB的分配情况为不被分配给UE，或者，默认RA字段的前2个bit对应的两个RGB的分配情况为被分配给该UE。又或者，根据RA字段的第3个bit来决定前3个bit对应的两个RGB的分配情况，如果第3个bit为0，则表示前3个bit对应的3个RBG的分配情况均为未被分配给该UE；如果第3个bit为1，则表示前3个bit对应的3个RBG的分配情况均为分配给了该UE。
以上只是对RA字段用于指示频域资源为例进行说明，RA字段还可以用于指示时域资源或者时频资源，此时，使用RA字段指示BWP的index的实现方式类似，此处不再赘述。需要说明的是，以上所述只是使用RA字段指示BWP的index的一种可能的实现方式，使用RA字段指示BWP的index还可以有其他实现方式，本发明实施例对比不作限定。
第二、使用资源组指示(resource set(s)indication)字段指示BWP的index。
如图4所示，在5G NR(New Radio)中，引入了resource set的概念，即在传输PDCCH的符号上，会有一些资源是没被PDCCH占用的，这些没有被PDCCH占用的资源即resource set，resource set还可以被配置给PDSCH使用，网络设备(如：基站)可以利用resource set向终端设备(如：UE)发送下行用户数据。进一步，基站会通过RRC信令为UE配置一个或多个resource set，再通过DCI中的使用资源组指示字段指示哪些set是UE可用的，哪些是UE不可用的。
参考图5，当出现跨BWP调度UE，即将当前的BWP(BWP1)去激活，激活新的BWP(BWP2)时，通过新的BWP与UE进行数据传输。UE解码PDCCH需要一定的时间，从BWP1跳到BWP2也需要一定的时间，就会导致PDCCH和PDSCH之间会有一定的时间间隔。此时，等UE切换到BWP2进行数据接收时，BWP2上的resource set所在的时域符号早已发送完毕，UE已经无法接收基站在这些resource set上发送的数据。同时，UE在BWP1上与基站通信时，并不会缓存BWP2上的数据，因此，在发生BWP切换时BWP2上的resource set显然就不能再给该UE使用。
综上，在出现跨BWP调度，即激活新的BWP时，使用资源组指示字段实际上是没有作用的。此时可以使用该字段来指示BWP的index。
第三、使用冗余版本(redundant version，RV)字段来指示BWP的index。
原始数据在被编码之后，coded bits(编码后比特)的不同集合称之为不同的RV。在传输失败后进行重传时，传输不同的RV(即不同的编码后比特集合)比传输相同的RV能有更高的解码成功率。
在出现跨BWP调度，即激活新的BWP时，默认被调度的数据使用RV＝0。此时，RV字段就可以用于指示BWP的index。
第四、使用发射功率控制(transmission power control，TPC)字段来指示BWP的index。
通常，UE的发射功率是由基站控制的，基站在DCI(即本发明实施例所述的指示信 息)中会指示UE的发射功率。发射功率控制分为两种：accumulation TPC(累加式功率控制)和absolute TPC(绝对值式功率控制)。当UE使用accumulation TPC时，DCI中指示功率变化值，该变化值与之前的累加值相加为UE最终的功率控制值；使用absolute TPC时，DCI中直接指示最终的功率控制值。
当UE使用accumulation TPC时，默认该次DCI中指示功率变化值为0，那么UE就可以将之前的累加值作为UE最终的功率控制值，此时DCI无需指示功率变化值，基站可以利用TPC command字段指示BWP的index。
或者，当UE使用absolute TPC时，默认该次DCI中指示的闭环功控值与最近一个同类型TPC command中相同。此时DCI无需指示最终的功率控制值，那么基站可以利用TPC command字段指示BWP的index。
第五、使用调制编码策略((mymova checkin system，MCS)字段来指示BWP的index。
通常MCS字段用于指示当前传输的调制方式，假设MCS字段的长度为5个bit，配置了4个BWP，包括2个上行BWP和2个下行BWP，并且4个BWP的index互不相同，那么可以使用2bits来指示BWP的index。可以使用MCS字段的前2个bit来指示BWP的index。
进一步，MCS字段剩余的3个bits仍然可以指示部分可用的MCS。或者，MCS字段剩余的3个bits作为reserved(保留不用)，使用一个默认的MCS。又或者，MCS字段剩余的3个bits作为reserved(保留不用)，使用与前一次传输相同的MCS。
以下以指示信息为DCI为例介绍本发明实施例提供的带宽指示方法中具体如何指示BWP的index。
对于调度下行数据的下行DCI信号，存在如下3种情况：
情况1：下行DCI指示一个上行BWP，UE激活该上行BWP，UE在该上行BWP上发送上行数据，如：反馈下行数据(即根据该下行DCI的指示接收的下行数据)接收情况的ACK或NACK、或者传输SRS、PUSCH、SR、CSI/CQI反馈等。
情况2：下行DCI指示一个下行BWP，此时，UE有以下两种接收可能：
第一、如图6所示，UE在当前激活的下行BWP(BWP1)(即基站发送该下行DCI)上接收该下行DCI调度的下行数据，但是在下一个slot(时隙)切换到该下行DCI指示的下行BWP(BWP2)上，后续在该下行BWP上接收基站发送的下行数据。
第二、如图7所示，UE接收该下行DCI，在当前的slot切换至该下行DCI指示的下行BWP(BWP2)上，在该下行DCI指示的下行BWP(BWP2)上接收该下行DCI调度的下行数据。
相比于第二种实现方式，第一种实现方式可以减少PDSCH的调度延时，并可以调度PDCCH中的未用的资源为UE传输数据。
情况3：下行DCI指示当前激活的上行BWP或当前激活的下行BWP，也就是说无需激活新的BWP。则UE在当前激活的下行BWP上接收该DCI调度的下行数据，并在当前激活的上行BWP上反馈该下行数据的ACK/NACK，或传输SRS、PUSCH、SR、CSI/CQI反馈等。
对于调度上行数据的上行DCI信号，存在如下3种情况：
情况1：上行DCI指示一个下行BWP，UE在该上行DCI指示的下行BWP上接收后续的下行数据，如：用于进行上行调度的DCI、用于指示下行传输的DCI、下行用户数据 等。
情况2：上行DCI指示一个上行BWP，UE也存在以下两种发送可能：
第一、UE接收该上行DCI后，切换至该上行DCI指示的上行BWP上，在该上行BWP上发送该上行DCI调度的上行数据，以及后续的上行数据。
第二、UE在当前激活的上行BWP上发送该上行DCI调度的上行数据，但是在下一个slot切换到该上行DCI指示的上行BWP上，后续在该上行BWP上发送上行数据或上行控制信号。
情况3：上行DCI指示当前激活的上行BWP或当前激活的下行BWP，也就是说无需激活新的BWP。则UE在当前激活的上行BWP上发送该上行DCI调度的上行数据，并在当前激活的下行BWP上接收后续的上行调度DCI、下行传输的DCI、下行数据。
在上述上、下行DCI指示BWP的6种情况中，可以通过DCI中的第一字段指示BWP的index。一些实施例中，假设配置有M个上行BWP和N个下行BWP，上行BWP和下行BWP的索引号完全不同，那么需要有M+N个索引号来指示不同的BWP，并且每一个索引号唯一指示一个上行BWP或一个下行BWP。进一步，需要roundup(log2 (M+N))比特来指示BWP的索引号，其中roundup是向上取整函数。也就是说第一字段的长度至少要大于或等于roundup(log2 (M+N))比特。
示例的，参考图8共配置了索引号0～7这8个BWP，需要log2 8＝3比特来指示BWP的index。具体地，索引号为0～3这4个BWP为上行BWP，分别用000、001、010、011来指示，索引号为4～7这4个BWP为下行BWP，分别用100、101、110、111来指示。
在一些实施例中，假设配置有M个上行BWP和N个下行BWP，上行BWP和下行BWP的索引号部分或全部相同，假设M个上行BWP中的X个上行BWP和N个下行BWP中的X个下行BWP的索引号相同，那么需要M+N-X个索引号来指示BWP的index，并且其中有X个索引号可以指示一个上行BWP和一个下行BWP，剩余的M+N-2X唯一指示一个上行BWP或一个下行BWP。那么需要roundup(log2 (M+N-X))比特来指示BWP的索引号。此时，第一字段的长度至少要大于或等于roundup(log2 (M+N-X))比特。
示例的，参考图9共配置了3个上行BWP和4个下行BWP，其中，上行BWP中有两个索引号分别为0、1的上行BWP，其余一个上行BWP的索引号为2；下行BWP中有两个索引号分别为0、1的下行BWP，其余两个下行BWP的索引号分别为3、4。那么需要roundup(log2 (3+4-2))＝3比特来指示BWP的index。具体地，用000来指示索引号为0的上行BWP和索引号为0的下行BWP；用001指示索引号为1的上行BWP和索引号为1的下行BWP；用010指示索引号为2的上行BWP；用011指示索引号为3的下行BWP；用100指示索引号为4的下行BWP。
需要说明的是，如果上行BWP和下行BWP的index有重叠，那么指示信息还需要指示BWP的类型。具体实现中，可以参考前述三种指示BWP类型的方式来指示是上行BWP还是下行BWP。示例的，参考图9，假设第一字段为BWP指示字段，且第一字段的状态值为“001”，那么就还需要结合其他特征来指示BWP的类型，如在指示信息中增加第二字段，且第二字段的状态值为“0”，则表示指示的是index为1的上行BWP。第二字段的状态值为“1”，则表示指示的是index为1的下行BWP。
本发明实施例提供一种终端设备。在采用对应各个功能划分各个功能模块的情况下，图10示出了上述终端设备的一种可能的结构示意图。如图10所示，所述终端设备包括接 收单元201、处理单元202以及发送单元203。
接收单元201，用于支持所述终端设备执行上述实施例中的步骤103，和/或用于本文所描述的技术的其它过程。
处理单元202，用于支持所述终端设备向所述网络数据发送上行数据，和/或用于本文所描述的技术的其它过程。
发送单元203，用于支持所述终端设备执行上述实施例中的步骤104，和/或用于本文所描述的技术的其它过程。
需要说明的是，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。
示例性的，在采用集成的单元的情况下，本申请实施例提供的终端设备的结构示意图如图11所示。在图11中，该终端设备包括：处理模块301和通信模块302。处理模块301用于对终端设备的动作进行控制管理，例如，执行上述处理单元202执行的步骤，和/或用于执行本文所描述的技术的其它过程。通信模块302用于支持终端设备与其他设备之间的交互，例如，执行上述接收单元201和发送单元203执行的步骤。如图8所示，终端设备还可以包括存储模块303，存储模块303用于存储终端设备的程序代码和数据。
当处理模块301为处理器，通信模块302为收发器，存储模块303为存储器时，终端设备可以为图2所示的终端设备。如果收发器为接收器和发射器，接收器执行上述接收单元201所执行的步骤，发射器执行发送单元203执行的步骤。
本发明实施例还提供一种计算机可读存储介质，所述计算机可读存储介质中存储有指令；当所述计算机可读存储介质在图2、图10、图11所示的网络设备上运行时，使得该网络设备执行本发明实施例上述步骤101-103(即图3所示的带宽指示方法)。
本发明实施例还提供一种无线通信装置，无线通信装置中存储有指令，当无线通信装置在图2、图10、图11所示的网络设备上运行时，使得该网络设备执行本发明实施例上述步骤101-103(即图3所示的带宽指示方法)。具体地，该无线通信装置可以为芯片。
在采用对应各个功能划分各个功能模块的情况下，图12示出上述实施例中所涉及的网络设备的一种可能的结构示意图。如图12所示，网络设备包括处理单元401，发送单元402。
处理单元401，用于支持该网络设备执行上述实施例中的步骤101，和/或用于本文所描述的技术的其它过程。
发送单元402，用于支持该网络设备执行上述实施例中的步骤102，和/或用于本文所描述的技术的其它过程。
需要说明的是，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。
示例性的，在采用集成的单元的情况下，本申请实施例提供的网络设备的结构示意图如图13所示。在图13中，该网络设备包括：处理模块501和通信模块502。处理模块501用于对网络设备的动作进行控制管理，和/或用于执行本文所描述的技术的其它过程。通信模块502用于支持网络设备与其他设备之间的交互，例如，执行上述发送单元402执行的步骤。如图13所示，网络设备还可以包括存储模块503，存储模块503用于存储网络设备的程序代码和数据。
当处理模块501为处理器，通信模块502为收发器，存储模块503为存储器时，网络 设备为图14所示的网络设备。参考图14所述网络设备包括至少一个处理器601，存储器602以及收发器603。存储器602中存储一组代码，处理器601调用存储器602中存储的代码支持所述网络设备执行本发明实施例提供的干扰处理方法。如果收发器为接收器和发射器，发射器执行发送单元402执行的步骤。
第九方面，公开了一种计算机可读存储介质，计算机可读存储介质中存储有指令；当计算机可读存储介质在图12、图13、图14所示的终端设备上运行时，使得终端设备执行本发明实施例上述步骤101-103(即图3所示的带宽指示方法)。
第十方面，公开了一种无线通信装置，无线通信装置中存储有指令，当无线通信装置在图12、图13、图14所示的终端设备上运行时，使得终端设备执行本发明实施例上述步骤101-103(即图3所示的带宽指示方法)，该无线通信装置可以为芯片。
在上述实施例中，可以全部或部分的通过软件，硬件，固件或者其任意组合来实现。当使用软件程序实现时，可以全部或部分地以计算机程序产品的形式出现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。该可用介质可以是磁性介质，(例如，软盘，硬盘、磁带)、光介质(例如，DVD)或者半导体介质(例如固态硬盘Solid State Disk(SSD))等。
通过以上的实施方式的描述，所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将装置的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。
在本申请所提供的几个实施例中，应该理解到，所揭露的装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述模块或单元的划分，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装置，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。
所述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一个物理单元或多个物理单元，即可以位于一个地方，或者也可以分布到多个不同地方。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处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元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 以存储在一个可读取存储介质中。基于这样的理解，本申请实施例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全部或部分可以以软件产品的形式体现出来，该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个设备(可以是单片机，芯片等)或处理器(processor)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。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何在本申请揭露的技术范围内的变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (28)

  1. 一种带宽指示方法，其特征在于，包括：
    网络设备生成指示信息，所述指示信息包括第一字段，所述第一字段用于指示带宽部分BWP；所述指示信息用于指示所述终端设备接收所述网络设备发送的下行数据或向所述网络设备发送上行数据；
    所述网络设备向所述终端设备发送所述指示信息。
  2. 根据权利要求1所述的方法，其特征在于，所述第一字段为资源分配字段、资源集合resource set指示字段、冗余版本RV字段、发射功率控制字段以及调制与编码策略MCS字段中的任意一个或多个；
    所述第一字段用于指示BWP，包括：所述第一字段的部分或全部用于指示BWP。
  3. 根据权利要求2所述的方法，其特征在于，所述指示信息还包括第二字段；所述第二字段用于指示所述第一字段是否用于指示BWP。
  4. 根据权利要求1所述的方法，其特征在于，所述第一字段为BWP指示字段。
  5. 根据权利要求1-4任一项所述的方法，其特征在于，包括：
    所述第一字段用于指示上行BWP，且所述指示信息还用于指示所述终端设备向所述网络设备发送上行数据；或，
    所述第一字段用于指示上行BWP，且所述指示信息还用于指示所述终端设备接收所述网络设备发送的下行数据；或，
    所述第一字段用于指示下行BWP，且所述指示信息还用于指示所述终端设备向所述网络设备发送上行数据；或，
    所述第一字段用于指示下行BWP，且所述指示信息还用于指示所述终端设备接收所述网络设备发送的下行数据。
  6. 根据权利要求1所述的方法，其特征在于，所述指示信息还用于指示的BWP的类型；所述BWP的类型为上行BWP或下行BWP。
  7. 根据权利要求6所述的方法，其特征在于，所述指示信息指示BWP的类型，包括：所述指示信息包括BWP类型指示位；
    当所述BWP类型指示位为第一数值时，所述指示信息用于指示上行BWP；
    当所述BWP类型指示位为第二数值时，所述指示信息用于指示下行BWP。
  8. 根据权利要求6所述的方法，其特征在于，所述指示信息指示BWP的类型包括：
    当所述指示信息使用第一标识加扰时，所述指示信息用于指示上行BWP；或，
    当所述指示信息使用第二标识加扰时，所述指示信息用于指示下行BWP。
  9. 根据权利要求6所述的方法，其特征在于，所述指示信息指示BWP的类型包括：
    当所述网络设备在第一搜索空间发送所述指示信息时，所述指示信息用于指示上行BWP；或，
    当所述网络设备在第二搜索空间发送所述指示信息时，所述指示信息用于指示下行BWP。
  10. 根据权利要求1-9任一项所述的方法，其特征在于，所述网络设备向所述终端设备发送所述指示信息之后，所述方法还包括：
    所述网络设备在所述第一字段指示激活的下行BWP上，发送所述下行数据；或，
    所述网络设备在所述第一字段指示激活的上行BWP上，接收所述终端设备发送的上行数据；或，
    所述网络设备在发送所述第一指示信息的下行BWP上，发送所述下行数据。
  11. 一种带宽指示方法，其特征在于，包括：
    终端设备接收指示信息；所述指示信息包括第一字段，所述第一字段用于指示带宽部分BWP；所述指示信息用于指示所述终端设备接收所述网络设备发送的下行数据或向所述网络设备发送上行数据；
    所述终端设备激活或去激活所述第一字段指示的BWP。
  12. 根据权利要求11所述的方法，其特征在于，所述第一字段为资源分配字段、资源集合resource set指示字段、冗余版本RV字段、发射功率控制字段以及调制与编码策略MCS字段中的任意一个或多个；
    所述第一字段用于指示BWP，包括：所述第一字段的部分或全部用于指示BWP。
  13. 根据权利要求12所述的方法，其特征在于，所述指示信息还包括第二字段；
    所述第二字段用于指示所述第一字段是否用于指示BWP。
  14. 根据权利要求11所述的方法，其特征在于，所述第一字段为BWP指示字段。
  15. 根据权利要求11-14任一项所述的方法，其特征在于，包括：
    所述第一字段用于指示上行BWP，且所述指示信息还用于指示所述终端设备向所述网络设备发送上行数据；或，
    所述第一字段用于指示上行BWP，且所述指示信息还用于指示所述终端设备接收所述网络设备发送的下行数据；或，
    所述第一字段用于指示下行BWP，且所述指示信息还用于指示所述终端设备向所述网络设备发送上行数据；或，
    所述第一字段用于指示下行BWP，且所述指示信息还用于指示所述终端设备接收所述网络设备发送的下行数据。
  16. 根据权利要求11所述的方法，其特征在于，所述指示信息还用于指示BWP的类型；所述BWP的类型为上行BWP或下行BWP。
  17. 根据权利要求16所述的方法，其特征在于，所述指示信息指示BWP的类型包括：所述指示信息包括BWP类型指示位；
    当所述BWP类型指示位为第一数值时，所述指示信息用于指示上行BWP；
    当所述BWP类型指示位为第二数值时，所述指示信息用于指示下行BWP。
  18. 根据权利要求16所述的方法，其特征在于，所述指示信息指示BWP的类型包括：
    当所述指示信息使用第一标识加扰时，所述指示信息用于指示上行BWP；或，
    当所述指示信息使用第二标识加扰时，所述指示信息用于指示下行BWP。
  19. 根据权利要求16所述的方法，其特征在于，所述指示信息指示BWP的类型包括：
    当所述终端设备在第一搜索空间接收所述指示信息时，所述指示信息用于指示上行BWP；或，
    当所述终端设备在第二搜索空间接收所述指示信息时，所述指示信息用于指示下行BWP。
  20. 根据权利要求11-19任一项所述的方法，其特征在于，所述方法还包括：
    所述终端设备激活所述第一字段指示的BWP之后，所述终端设备在所述第一字段指 示激活的下行BWP上，接收所述下行数据；
    或，所述终端设备激活所述第一字段指示的BWP之后，所述终端设备在所述第一字段指示激活的上行BWP上，向所述终端设备发送上行数据；
    或，所述终端设备激活或去激活所述第一字段指示的BWP之前或之后，在发送所述第一指示信息的下行BWP上，接收所述网络设备发送的所述下行数据。
  21. 一种带宽指示方法，其特征在于，包括：
    网络设备生成指示信息，所述指示信息包括第一字段，所述第一字段用于指示带宽部分BWP；所述指示信息用于指示所述终端设备接收所述网络设备发送的下行数据或向所述网络设备发送上行数据；
    所述网络设备向所述终端设备发送所述指示信息；
    所述终端设备接收所述指示信息，激活或去激活所述第一字段指示的BWP。
  22. 一种网络系统，包括网络设备和终端设备，其特征在于，
    所述网络设备生成指示信息，并向终端设备发送所述指示信息；其中，所述指示信息包括第一字段，所述第一字段用于指示带宽部分BWP；所述指示信息用于指示所述终端设备接收所述网络设备发送的下行数据或向所述网络设备发送上行数据；
    所述终端设备接收所述指示信息，并激活或去激活所述第一字段指示的BWP。
  23. 一种网络设备，其特征在于，包括：收发器、处理器以及存储器；所述存储器中存储有代码，所述处理器用于调用所述代码执行权利要求1-10任一项所述的带宽指示方法。
  24. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有指令；当所述计算机可读存储介质在网络设备上运行时，使得所述网络设备执行权利要求1-10任一项所述的带宽指示方法。
  25. 一种无线通信装置，其特征在于，所述无线通信装置中存储有指令，当所述无线通信装置在网络设备上运行时，使得所述网络设备执行权利要求1-10任一项所述的带宽指示方法；所述无线通信装置为芯片。
  26. 一种终端设备，其特征在于，包括：收发器、处理器以及存储器；所述存储器中存储有代码，所述处理器用于调用所述代码执行权利要求11-20任一项所述的带宽指示方法。
  27. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有指令；当所述计算机可读存储介质在终端设备上运行时，使得所述终端设备执行权利要求11-20任一项所述的带宽指示方法。
  28. 一种无线通信装置，其特征在于，所述无线通信装置中存储有指令，当所述无线通信装置在终端设备上运行时，使得所述终端设备执行权利要求11-20任一项所述的带宽指示方法；所述无线通信装置为芯片。
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