WO2023130275A1 - 一种数据传输方法、通信装置及通信设备 - Google Patents

一种数据传输方法、通信装置及通信设备 Download PDF

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Publication number
WO2023130275A1
WO2023130275A1 PCT/CN2022/070382 CN2022070382W WO2023130275A1 WO 2023130275 A1 WO2023130275 A1 WO 2023130275A1 CN 2022070382 W CN2022070382 W CN 2022070382W WO 2023130275 A1 WO2023130275 A1 WO 2023130275A1
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Prior art keywords
bandwidth
pdcch
terminal device
pdsch
bwp
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PCT/CN2022/070382
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English (en)
French (fr)
Inventor
牟勤
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北京小米移动软件有限公司
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Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to PCT/CN2022/070382 priority Critical patent/WO2023130275A1/zh
Priority to CN202280000090.7A priority patent/CN116724631A/zh
Publication of WO2023130275A1 publication Critical patent/WO2023130275A1/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

Definitions

  • the present disclosure relates to the technical field of wireless communication, and in particular, to a data transmission method, a communication device, and a communication device.
  • the physical downlink control channel (physical download control channel, PDCCH) used to schedule the system information block (SIB) is transmitted in the control resource set (CORESET) 0, used for
  • the physical downlink shared channel (physical download share channel, PDSCH) carrying the SIB is also transmitted within the frequency range corresponding to CORESET0.
  • terminal devices with limited capabilities such as NR light terminal devices, redced capability (RedCap) terminal devices or other evolved terminal devices.
  • RedCap redced capability
  • the disclosure provides a data transmission method, a communication device and a communication device, so as to implement scheduling of PDSCHs across bandwidth parts.
  • a data transmission method includes: a terminal device monitors a first PDCCH in a first bandwidth part (band width part, BWP), receives a PDSCH in a second BWP based on the first PDCCH, and first The bandwidth of the PDCCH is within the receiving bandwidth of the terminal equipment, and the first PDCCH is used to schedule the PDSCH.
  • BWP bandwidth part
  • BWP bandwidth part
  • the method further includes: in response to the terminal device monitoring the first PDCCH at the first BWP, the terminal device parses the content of the control information contained in the first PDCCH based on the configuration information of the second BWP.
  • system information is carried in the PDSCH.
  • the bandwidth of the second BWP is greater than the receiving bandwidth of the terminal device.
  • the second BWP corresponds to the frequency domain resource of the control resource set CORESET0.
  • the bandwidth of the first BWP is smaller than the receiving bandwidth of the terminal device.
  • the method further includes: in response to the terminal device monitoring the first PDCCH at the first BWP, the terminal device switches from the first BWP to the second BWP, and receives the PDSCH at the second BWP.
  • the method further includes: the terminal device determines a handover delay; and the terminal device stops monitoring downlink information within the handover time delay.
  • the first PDCCH further carries the scheduling delay of the PDSCH, and the scheduling delay is greater than or equal to the handover delay.
  • the method further includes: in response to the terminal device receiving the PDSCH at the second BWP, the terminal device stops monitoring the PDCCH at the first BWP.
  • the method further includes: in response to the fact that the terminal device finishes receiving the PDSCH at the second BWP or completes receiving the PDSCH for M time units, the terminal device switches from the second BWP to the first BWP, and at the second BWP A BWP continues to monitor the PDCCH, and M is a positive integer.
  • the terminal device is an enhanced capability limited eRedCap terminal device.
  • a data transmission method includes: a network device configures a first BWP and a second BWP for a first type of terminal equipment, and the first BWP is used to send a first PDCCH to the first type of terminal equipment , the second BWP is used to send the PDSCH to the first type of terminal equipment, the first PDCCH is used to schedule the PDSCH, and the bandwidth of the first PDCCH is within the receiving bandwidth of the first type of terminal equipment.
  • the method further includes: the network device generates the control information contained in the first PDCCH based on the configuration information of the second BWP.
  • the method further includes: the network device sends a second PDCCH to the second type terminal device at the second BWP, the second PDCCH is used to schedule the PDSCH, and the capability of the second type terminal device is the same as that of the first type terminal device
  • the capabilities of the devices vary.
  • the PDSCH carries system information.
  • the bandwidth of the second BWP is greater than the receiving bandwidth of the first type of terminal device.
  • the second BWP corresponds to the frequency domain resource of the control resource set CORESET0.
  • the bandwidth of the first BWP is smaller than the receiving bandwidth of the first type of terminal device.
  • the method further includes: the network device instructs the scheduling delay of the PDSCH, the scheduling delay is included in the first PDCCH, and the scheduling delay is greater than or equal to the handover delay of the first type of terminal equipment.
  • the method further includes: the network device stops sending downlink information to the first type of terminal device within the switching delay.
  • the method further includes: in response to the first type of terminal equipment receiving the PDSCH at the second BWP, the network device stops sending the PDCCH to the first type of terminal equipment at the first BWP.
  • the method further includes: the network device determines the time when the first type of terminal device switches from the second BWP to the first BWP; after the time, the network device sends the first type of terminal device at the first BWP PDCCH.
  • a communication device may be a terminal device in a communication system or a chip or a system-on-a-chip in a terminal device, and may also be an functional module.
  • the communication device can implement the functions performed by the terminal device in the foregoing embodiments, and these functions can be implemented by executing corresponding software through hardware.
  • These hardware or software include one or more modules with corresponding functions mentioned above.
  • the communication device includes: a receiving module, configured to monitor the first physical downlink control channel PDCCH at the first BWP, and receive the physical downlink shared channel PDSCH at the second BWP based on the first PDCCH, the bandwidth of the first PDCCH is within the receiving bandwidth of the terminal equipment , the first PDCCH is used to schedule the PDSCH.
  • a receiving module configured to monitor the first physical downlink control channel PDCCH at the first BWP, and receive the physical downlink shared channel PDSCH at the second BWP based on the first PDCCH, the bandwidth of the first PDCCH is within the receiving bandwidth of the terminal equipment , the first PDCCH is used to schedule the PDSCH.
  • the apparatus further includes: a processing module configured to parse the content of the control information contained in the first PDCCH based on the configuration information of the second BWP.
  • system information is carried in the PDSCH.
  • the bandwidth of the second BWP is greater than the receiving bandwidth of the terminal device.
  • the second BWP corresponds to the frequency domain resource of the control resource set CORESET0.
  • the bandwidth of the first BWP is smaller than the receiving bandwidth of the terminal device.
  • the receiving module is further configured to switch from the first BWP to the second BWP in response to monitoring the first PDCCH at the first BWP, and receive the PDSCH at the second BWP.
  • the receiving module is further configured to determine a handover delay; and stop monitoring downlink information within the handover delay.
  • the first PDCCH further carries the scheduling delay of the PDSCH, and the scheduling delay is greater than or equal to the handover delay.
  • the receiving module is further configured to stop monitoring the PDCCH at the first BWP in response to receiving the PDSCH at the second BWP.
  • the receiving module is further configured to switch from the second BWP to the first BWP after the second BWP finishes receiving the PDSCH or M time units after the second BWP finishes receiving the PDSCH, and continues to Monitor the PDCCH, and M is a positive integer.
  • a communication device may be a network device in a communication system or a chip or a system on a chip of a network device, and may also be a function in a terminal device for implementing the methods in the above-mentioned embodiments. module.
  • the communication device can implement the functions performed by the terminal device in the foregoing embodiments, and these functions can be implemented by executing corresponding software through hardware. These hardware or software include one or more modules with corresponding functions mentioned above.
  • the communication device includes: a configuration module, configured to configure a first BWP and a second BWP for a first type of terminal equipment, the first BWP is used to send a first physical downlink control channel PDCCH to the first type of terminal equipment, and the second BWP is used for The first physical downlink shared channel PDSCH is sent to the first type of terminal equipment, the first PDCCH is used to schedule the PDSCH, and the bandwidth of the first PDCCH is within the receiving bandwidth of the first type of terminal equipment.
  • the configuration module is further configured to generate control information contained in the first PDCCH based on configuration information of the second BWP.
  • the above apparatus further includes: a sending module, configured to send a second PDCCH to a second type of terminal equipment on a second BWP, the second PDCCH is used to schedule a PDSCH, and the capability of the second type of terminal equipment is the same as that of the second type of terminal equipment.
  • a sending module configured to send a second PDCCH to a second type of terminal equipment on a second BWP, the second PDCCH is used to schedule a PDSCH, and the capability of the second type of terminal equipment is the same as that of the second type of terminal equipment.
  • a type of terminal equipment has different capabilities.
  • system information is carried in the PDSCH.
  • the bandwidth of the second BWP is greater than the receiving bandwidth of the first type of terminal device.
  • the second BWP corresponds to the frequency domain resource of the control resource set CORESET0.
  • the bandwidth of the first BWP is smaller than the receiving bandwidth of the first type of terminal device.
  • the sending module is further configured to indicate the scheduling delay of the PDSCH, the first PDCCH includes the scheduling delay, and the scheduling delay is greater than or equal to the handover delay of the first type of terminal equipment.
  • the sending module is further configured to stop sending downlink information to the first type of terminal device within the switching delay.
  • the sending module is further configured to, in response to the first type of terminal device receiving the PDSCH at the second BWP, stop sending the PDCCH to the first type of terminal device at the first BWP.
  • the sending module is further configured to determine the time when the first type of terminal equipment switches from the second BWP to the first BWP; after the time, the first BWP sends the PDCCH to the first type of terminal equipment.
  • a communication device such as a terminal device, including: an antenna; a memory; and a processor, respectively connected to the antenna and the memory, and configured to control the antenna by executing computer-executable instructions stored in the memory
  • a communication device including: an antenna; a memory; and a processor, respectively connected to the antenna and the memory, and configured to control the antenna by executing computer-executable instructions stored in the memory
  • a communication device such as a network device, including: an antenna; a memory; and a processor, respectively connected to the antenna and the memory, and configured to control the antenna by executing computer-executable instructions stored in the memory
  • a communication device such as a network device, including: an antenna; a memory; and a processor, respectively connected to the antenna and the memory, and configured to control the antenna by executing computer-executable instructions stored in the memory
  • a computer storage medium including: a processing module, configured to store computer-executable instructions in the computer storage medium, where the computer-executable instructions can implement the first aspect of the present disclosure after being executed by a processor 1.
  • the data transmission method according to any one of the second aspect and possible implementation manners thereof.
  • the terminal device monitors the first PDCCH whose bandwidth is within its own receiving bandwidth in the first BWP. Since the first PDCCH is used to schedule the PDSCH, the terminal device can receive the PDSCH at the second BWP based on the first PDCCH, and in this way, the terminal device can schedule the PDSCH across BWPs.
  • FIG. 1 is a schematic structural diagram of a communication system in an embodiment of the present disclosure
  • FIG. 2 is a schematic diagram of a BWP in an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of an implementation process of a data transmission method on the terminal device side in an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of a frequency domain resource in an embodiment of the present disclosure.
  • FIG. 5 is a schematic diagram of an implementation process of another data transmission method on the terminal device side in an embodiment of the present disclosure
  • FIG. 6 is a flow chart of implementing a data transmission method on the network device side in an embodiment of the present disclosure
  • FIG. 7 is a schematic structural diagram of a communication device in an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of another communication device in an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a communication device in an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of a terminal device in an embodiment of the present disclosure.
  • Fig. 11 is a schematic structural diagram of a network device in an embodiment of the present disclosure.
  • first information may also be called “second information” without departing from the scope of the embodiments of the present disclosure, and similarly, “second information” may also be called “first information”.
  • word “if” as used herein may be interpreted as “at” or “when” or “in response to a determination.”
  • the technical solutions provided by the embodiments of the present disclosure may be applied to wireless communication between communication devices.
  • the wireless communication between communication devices may include: wireless communication between a network device and a terminal device, wireless communication between a network device and a network device, and wireless communication between a terminal device and a terminal device.
  • wireless communication may also be referred to as "communication” for short, and the term “communication” may also be described as "data transmission", “information transmission” or "transmission”.
  • FIG. 1 is a schematic structural diagram of a communication system in an embodiment of the present disclosure.
  • the communication system 10 may include: a terminal device 11 and a network device 12 .
  • the above-mentioned terminal device 11 may be a device that provides voice or data connectivity to users.
  • a terminal device may also be called a user equipment (user equipment, UE), a mobile station (mobile station), a subscriber unit (subsriber unit), a station (station), or a terminal (terminal equipment, TE).
  • Terminal equipment can be cellular phone (cellular phone), personal digital assistant (personal digital assistant, PDA), wireless modem (modem), handheld device (handheld), laptop computer (laptop computer), cordless phone (cordless phone), Wireless local loop (wireless local loop, WLL) station or tablet computer (pad), etc.
  • terminal devices that can access the communication system, communicate with the network side of the communication system, or communicate with other devices through the communication system are all terminal devices in the embodiments of the present disclosure.
  • terminals and cars in intelligent transportation, household equipment in smart homes, power meter reading instruments in smart grids, voltage monitoring instruments, environmental monitoring instruments, video surveillance instruments in intelligent complete networks, cash registers, etc.
  • a terminal device can communicate with a network device, and multiple terminal devices can also communicate with each other.
  • Terminal equipment can be statically fixed or mobile.
  • the above-mentioned mobile device 101 may be some terminal devices with normal functions, and may also be a terminal device with limited capability, such as NR light terminal device, RedCap terminal device, enhanced terminal device with limited capability, etc.
  • MTC machine type communication
  • NB-IoT narrowband internet of things
  • this new type of terminal equipment is called a limited capability terminal equipment (ie reduced capability UE, ie RedCap UE). Since RedCap technology is mainly aimed at medium-speed applications, the maximum bandwidth of RedCap UE in the 5G FR1 frequency band is 20MHz. In the new version of the 3GPP standard, the applicable bandwidth of RedCap has been further reduced to 5MHz. At this time, the terminal equipment can be called an enhanced reduced capability terminal equipment (enhance reduced capability UE, namely eRedCap) UE).
  • enhanced reduced capability terminal equipment enhanced reduced capability terminal equipment
  • the above-mentioned network device 12 may be a device used on the access network side to support the terminal to access the communication system.
  • it can be an evolved base station (evolved NodeB, eNB) in a 4G access technology communication system, a next generation base station (next generation nodeB, gNB) in a 5G access technology communication system, a transmission reception point (TRP) ), relay node (relay node), access point (access point, AP) and so on.
  • eNB evolved NodeB
  • gNB next generation base station
  • TRP transmission reception point
  • relay node relay node
  • access point access point
  • AP access point
  • a network device may manage one or more cells, and a cell may include an integer number of terminal devices.
  • network devices and terminal devices can use air interface resources for wireless communication.
  • air interface resources may include frequency domain resources.
  • the frequency domain resource may be located in a set frequency range, and the frequency range may also be called a frequency band (band) or a frequency segment.
  • a central point of the frequency domain resource may be called a central frequency point, and a width of the frequency domain resource may be called a bandwidth (bandwidth, BW).
  • the carrier frequency domain resource may be a system frequency domain resource, may also be a frequency domain resource that can be managed and allocated by a network device, or may be a frequency domain resource that can be used for communication between a network device and a terminal device.
  • the carrier frequency domain resource may be a segment of continuous frequency domain resources, and in this case, the carrier frequency domain resource may also be called a carrier.
  • the width of the carrier may be referred to as system bandwidth, carrier bandwidth or transmission bandwidth.
  • frequency domain resources may also be called frequency resources or other names, which are not specifically limited in the embodiments of the present disclosure.
  • a possible design for the network device to allocate frequency domain resources to the terminal device is as follows: the network device configures a BWP for the terminal device from the carrier, and the network device schedules the terminal device in the configured BWP.
  • This design can also be described as: the network device configures the BWP for the terminal device from the carrier, and the network device can allocate part or all of the resources in the configured BWP to the terminal device for communication between the network device and the terminal device.
  • the BWP configured by the network device for the terminal device is included in the carrier, and may be a part of continuous or discontinuous resources in the carrier, or may be all resources in the carrier.
  • the BWP may also be called bandwidth resource, frequency domain resource part, part of frequency domain resource, frequency resource part, part of frequency resource, carrier BWP or other names, which are not specifically limited in the embodiments of the present disclosure.
  • the BWP may also be called subband, narrowband or other names, which are not specifically limited in the embodiments of the present disclosure.
  • FIG. 2 is a schematic diagram of a BWP in an embodiment of the present disclosure. Referring to FIG.
  • a BWP is a continuous resource in a carrier, the bandwidth of the BWP is W, and the center frequency of the BWP is F , can also be described as, the frequency of the highest frequency point in the BWP is F+2/W, and the frequency of the lowest frequency point in the BWP is F-W/2.
  • the PDCCH used to schedule SIBs (such as SIB1) is transmitted in CORESET 0, and the PDSCH used to carry SIBs is also transmitted within the frequency range corresponding to CORESET0.
  • the term “bearer” can also be described as “carry”.
  • the bandwidth of CORESET0 will exceed the bandwidth of these terminal devices. In this case, it will bring difficulties to monitor the PDCCH, so that the PSDCH carrying the SIB cannot be scheduled. .
  • the bandwidth of the terminal device may be understood as the bandwidth capability of the terminal device, or may also be described as the bandwidth supported by the terminal device.
  • the bandwidth of the terminal device may include the downlink bandwidth of the terminal device, or may be described as the receiving bandwidth of the terminal device, the downlink receiving bandwidth, etc., that is, the bandwidth supported by the terminal device when receiving.
  • the bandwidth of the terminal device may also include the uplink bandwidth of the terminal device, or may be described as the sending bandwidth of the terminal device, the uplink sending loan, etc., that is, the bandwidth supported by the terminal device for sending.
  • the receiving bandwidth of the terminal device and the sending bandwidth of the terminal device may be the same or different, which is not limited in this embodiment of the present disclosure.
  • the present disclosure provides a data transmission method, which can be applied to terminal devices in the above communication system.
  • Fig. 3 is a schematic diagram of the implementation process of a data transmission method on the terminal device side in an embodiment of the present disclosure. Referring to Fig. 3, the above method may include:
  • the terminal device monitors the first PDCCH on the first BWP.
  • the bandwidth of the first PDCCH is within the receiving bandwidth of the terminal equipment, and the first PDCCH is used for scheduling the PDSCH.
  • the terminal device when the terminal device randomly accesses the network device, the terminal device can monitor the first PDCCH at the first BWP according to instructions such as master information block (MIB), high-level signaling, and pre-definition.
  • MIB master information block
  • high-level signaling high-level signaling
  • pre-definition pre-definition
  • the above high-level signaling may be radio resource control (radio resource control, RRC) signaling, broadcast message, system message, medium access control (medium access control, MAC) control element (control element, CE), DCI or PDSCH carrying signaling.
  • RRC radio resource control
  • MAC medium access control
  • CE control element
  • the terminal device since the bandwidth of the first PDCCH is within the receiving bandwidth of the terminal device, once the terminal device monitors the first PDCCH on the first BWP, it can receive the first PDCCH. Then, the terminal device parses the first PDCCH to obtain the content of the control information carried in the first PDCCH, such as the content of each information field in downlink control information (DCI).
  • the DCI carried by the first PDCCH may include scheduling information of the PDSCH.
  • the terminal device receives the PDSCH at the second BWP based on the first PDCCH.
  • the terminal device may analyze the first PDCCH to obtain the scheduling information of the PDSCH in the first PDCCH. Then, the terminal device receives the PDSCH on the second BWP according to the scheduling information of the PDSCH. In this way, the PDSCH on the second BWP is scheduled through the PDCCH on the first BWP, that is, the PDSCH is scheduled across BWPs.
  • the first BWP may be a dedicated (dedicated) BWP or a default (default) BWP of the terminal device.
  • the second BWP may be an initial (initial) BWP of the terminal device, which is used to bear the SIB; the second BWP may also be a dedicated (dedicated) BWP of the terminal device.
  • the above PDSCH carries the SIB, for example, the PDSCH carries the SIB1.
  • the bandwidth of the second BWP is greater than the receiving bandwidth of the terminal device.
  • the second BWP corresponds to the frequency domain resource of CORESET0, which may also be described as the bandwidth of the second BWP includes the frequency domain bandwidth occupied by CORESET0.
  • the first BWP can only transmit the first PDCCH used to schedule the PDSCH in the second BWP; the second BWP can only transmit the PDSCH scheduled by the first PDCCH, and can also transmit other PDCCHs, these PDCCHs It can be used for other terminal devices (such as terminal devices with different capabilities) to schedule the PDSCH in the second BWP, or to schedule other PSDCHs in other BWPs.
  • FIG. 4 is a schematic diagram of a frequency domain resource in an embodiment of the present disclosure.
  • the network device may also send a second PDCCH to some non-capability-limited terminal devices on the second BWP,
  • the second PDCCH may also schedule the PDSCH in the second BWP.
  • the frequency domain resources occupied by the second PDCCH may be included in the frequency domain resources occupied by the second BWP.
  • the frequency domain resources occupied by the second PDCCH may be located in CORESET0 in the second BWP, and the second PDCCH
  • the bandwidth of may be less than or equal to the frequency domain bandwidth occupied by CORESET0 in the second BWP. It can be seen that the second PDCCH located in CORESET0 in the second BWP and the first PDCCH in the first BWP can schedule the same PDSCH.
  • the bandwidth of the first BWP is smaller than the receiving bandwidth of the terminal device.
  • the bandwidth of the second BWP will be greater than the receiving bandwidth of the terminal device, then, if the terminal device monitors the PDCCH on the second BWP, there will be a problem that the The possibility of seeing the PDCCH, and then the PDSCH cannot be scheduled. Then, in order for these terminal devices to schedule the PDSCH to obtain the SIB, the bandwidth of the first BWP is smaller than the receiving bandwidth of the terminal devices.
  • the terminal device can monitor the first PDCCH at the first BWP.
  • the above method may further include: the terminal device may analyze the content of the control information contained in the first PDCCH based on the configuration information of the second BWP.
  • the first PDCCH is used to schedule the PDSCH, and the frequency domain resources occupied by the PDSCH (that is, the second BWP) and the transmission content of the first PDCCH (which can also be described as the control information content contained in the first PDCCH) are Associated. Therefore, the network device can generate the transmission content of the first PDCCH according to the configuration information of the second BWP, so that the terminal device can receive the PDSCH based on the first PDCCH, and further analyze the SIB in the PDSCH.
  • the configuration information of the second BWP may include the bandwidth, subcarrier spacing, and the like of the second BWP.
  • the terminal device monitors the first PDCCH whose bandwidth is within its own receiving bandwidth in the first BWP. Since the first PDCCH is used to schedule the PDSCH, the terminal device can receive the PDSCH at the second BWP based on the first PDCCH, and in this way, the terminal device can schedule the PDSCH across BWPs.
  • the embodiments of the present disclosure also provide another data transmission method, which can still be applied to a terminal device in a communication system.
  • Fig. 5 is a schematic diagram of the implementation process of another data transmission method in the embodiment of the present disclosure on the terminal device side, as shown by the solid line in Fig. 5, the above method may include:
  • the terminal device monitors the first PDCCH on the first BWP.
  • the terminal device In response to the terminal device monitoring the first PDCCH at the first BWP, the terminal device switches from the first BWP to the second BWP.
  • the BWP can be called an active BWP.
  • the active BWP is the first BWP.
  • the terminal device monitors the first PDCCH on the first BWP, it switches from the first BWP to the second BWP, that is, activates the second BWP, and then executes S503 to receive the PSDCH on the second BWP.
  • a handover delay (such as described as a handover delay A, a first handover delay, etc.) may be predefined, that is, a time period for a terminal device to switch from the first BWP to the second BWP.
  • the terminal device After analyzing the content of the control information in the first PDCCH, the terminal device determines the handover delay, and performs RF retuning or BWP handover. Then, within the switching delay A, the terminal device switches from the first BWP to the second BWP.
  • the above handover delay A may be X (X is a positive integer) time units, and the time units may be slots (slots), sub-slots (sub-slots), symbols (symbols), and the like.
  • the terminal device stops monitoring downlink information at the first BWP, such as downlink control information (DCI), channel state information Reference signal (channel state information reference signal, CSI-RS), etc.
  • DCI downlink control information
  • channel state information Reference signal channel state information reference signal
  • the scheduling delay of the PDSCH may also be carried in the first PDCCH, so as to instruct the terminal equipment to delay scheduling the PDSCH by Y time units (that is, the scheduling delay).
  • the scheduling delay is greater than or equal to the switching delay A, that is, Y is a positive integer greater than or equal to X.
  • the terminal device can receive the PDSCH after switching from the first BWP to the second BWP, which improves the reliability of PDSCH scheduling.
  • the terminal device receives the PDSCH at the second BWP based on the first PDCCH.
  • the above method may further include:
  • the terminal device stops monitoring the PDCCH at the first BWP. It can be understood that, when the terminal device receives the PDSCH at the second BWP, the first BWP is deactivated, and at this time, the terminal device stops monitoring the PDCCH on the first BWP.
  • the above method may further include:
  • the terminal device in response to the terminal device completing receiving the PDSCH at the second BWP or after completing M (M is a positive integer) time units of receiving the PDSCH, the terminal device switches from the second BWP to the first BWP, and continues to monitor at the first BWP PDCCH.
  • M is a positive integer
  • the foregoing M time units may be predefined or configured by a network device, and of course may also be determined in other ways, which is not specifically limited in this embodiment of the present disclosure.
  • another handover delay (such as described as handover delay B, second handover delay, etc.) may be predefined, that is, the duration for the terminal device to switch from the second BWP to the first BWP.
  • the terminal device determines the switching delay B, and performs RF retuning or BWP switching. Then, within the switching delay B, the terminal device switches back from the second BWP to the first BWP.
  • the switching delay B may be equal to the switching delay A, that is, the switching delay B is X time units, or it may be different from the switching delay A, which is not specifically limited in this embodiment of the present disclosure.
  • the terminal device may switch back to the BWP with a smaller bandwidth after the BWP with a larger bandwidth finishes receiving the PDSCH. For example, after the second BWP (such as a BWP with a larger bandwidth) finishes receiving the PDSCH, the terminal device switches back to the first BWP (such as a BWP with a smaller bandwidth) from the second BWP, and continues to monitor the PDCCH at the first BWP. At this time, the second BWP is deactivated, and the first BWP is activated.
  • the first BWP such as a BWP with a smaller bandwidth
  • the terminal device monitors the first PDCCH whose bandwidth size is within its own receiving bandwidth at the first BWP. Since the first PDCCH is used to schedule the PDSCH, the terminal device can receive the PDSCH in the second BWP based on the first PDCCH, thus, the terminal device can schedule the PDSCH across BWPs. Further, the terminal device may switch from the first BWP to the second BWP to receive the PDSCH, and switch back to the first BWP after receiving the PDSCH, so as to save power consumption of the device.
  • an embodiment of the present disclosure further provides a data transmission method, which can be applied to the network device in the above-mentioned communication system.
  • FIG. 6 is a flow chart of implementing a data transmission method on the network device side in an embodiment of the present disclosure. Referring to FIG. 6, the above method may include:
  • the network device configures a first BWP and a second BWP for a first type of terminal device.
  • the first type of terminal equipment may be a terminal equipment with limited capabilities, such as NR light UE, RedCap UE, eRedCap UE.
  • the network device may determine BWPs of different bandwidths for the first type of terminal device, and indicate these BWPs to the first type of terminal device. Specifically, the network device may indicate the configuration information of the first BWP and the configuration information of the second BWP through, for example, a master information block (master information block, MIB), high-layer signaling, and pre-definition.
  • a master information block master information block, MIB
  • high-layer signaling may be signaling carried by RRC signaling, broadcast message, system message, MAC CE, DCI or PDSCH.
  • the first BWP may be configured as a dedicated BWP or a default BWP of the terminal device.
  • the second BWP may be configured as the initial BWP of the terminal device, and is used to bear the SIB; the second BWP may also be a dedicated BWP of the terminal device.
  • the bandwidth of the second BWP is greater than the receiving bandwidth of the first type of terminal device.
  • the second BWP corresponds to the frequency domain resource of CORESET0, which may also be described as the bandwidth of the second BWP includes the frequency domain bandwidth occupied by CORESET0.
  • the bandwidth of the first BWP is smaller than the receiving bandwidth of the first type of terminal device.
  • the first BWP may only transmit the first PDCCH used to schedule the PDSCH in the second BWP; the second BWP may only transmit the PDSCH scheduled by the first PDCCH, or may transmit other PDCCHs.
  • These PDCCHs may be used for the second type of terminal equipment to schedule PDSCH in the second BWP, or used for the second type of terminal equipment to schedule other PSDCHs in other BWPs.
  • the network device may also send a second PDCCH to the second type terminal device on the second BWP, and the second PDCCH may also schedule a PDSCH in the second BWP.
  • the frequency domain resources occupied by the second PDCCH may be included in the frequency domain resources occupied by the second BWP.
  • the frequency domain resources occupied by the second PDCCH may be located in CORESET0 in the second BWP, and the second PDCCH The bandwidth of may be less than or equal to the frequency domain bandwidth occupied by CORESET0 in the second BWP. It can be seen that the second PDCCH located in CORESET0 in the second BWP and the first PDCCH in the first BWP can schedule the same PDSCH.
  • the capability of the first type terminal device is different from the capability of the second type terminal device.
  • the first type of terminal device may be a terminal device with limited capabilities, and the second type of terminal device may be a terminal device with normal functions; or, the first type of terminal device may be an eRedCap UE, and the second type of terminal device may be an NR light UE Or eRedCap UE.
  • the network device sends the first PDCCH to the first type terminal device at the first BWP, and sends the PDSCH to the first type terminal device at the second BWP.
  • the first PDCCH is used to schedule the PDSCH, and the bandwidth of the first PDCCH is within the receiving bandwidth of the first type of terminal equipment.
  • the PDSCH carries the SIB, for example, the PDSCH carries the SIB1.
  • the above method may further include: the network device generates the control information contained in the first PDCCH based on the configuration information of the second BWP.
  • the first PDCCH is used to schedule the PDSCH, and the frequency domain resources occupied by the PDSCH (that is, the second BWP) and the transmission content of the first PDCCH (which can also be described as the control information content contained in the first PDCCH) are Associated. Therefore, the network device can generate the transmission content for the first PDCCH according to the configuration information of the second BWP, so that the terminal device can receive the PDSCH based on the first PDCCH, and further analyze the SIB in the PDSCH.
  • the configuration information of the second BWP may include the bandwidth, subcarrier spacing, and the like of the second BWP.
  • the above method further includes: the network device instructs the scheduling delay of the PDSCH.
  • the scheduling delay can be carried on the first PDCCH (it can also be described as including the scheduling delay in the first PDCCH), the scheduling delay is greater than or equal to the switching delay of the first type of terminal equipment, and the scheduling delay is the first type of terminal equipment
  • the device delays the duration of scheduling the PDSCH, and the switching delay is the duration for the first type of terminal device to switch from the first BWP to the second BWP.
  • a handover delay A (for example, X time units) may be predefined, that is, the time period for the terminal device to switch from the first BWP to the second BWP.
  • the network device may determine the scheduling delay (for example, Y time units) according to the handover delay A, so as to instruct the first-type terminal device to delay scheduling the PDSCH by Y time units.
  • Y is a positive integer greater than or equal to X. In this way, the terminal device can receive the PDSCH immediately after switching from the first BWP to the second BWP, which improves the scheduling efficiency of the PDSCH and reduces power consumption of the device.
  • the above method may further include: the network device stops sending downlink information to the first type of terminal within the switching delay A, such as DCI, CSI-RS, etc.
  • the scheduling delay of the PDSCH may also be carried in the first PDCCH, so as to instruct the terminal equipment to delay scheduling the PDSCH by Y time units (that is, the scheduling delay).
  • the foregoing method may further include: the network device stops sending the PDCCH to the first type of terminal device at the first BWP.
  • the terminal device receives the PDSCH at the second BWP
  • the first BWP is deactivated, and at this time, the network device stops sending the PDCCH on the first BWP.
  • the above method in response to the terminal device completing receiving the PDSCH at the second BWP, the above method further includes: the network device determines the moment when the first type of terminal device switches from the second BWP to the first BWP; after this moment, The network device sends the PDCCH to the first type terminal device at the first BWP.
  • the terminal device switches from the second BWP to the first BWP after the second BWP finishes receiving the PDSCH or after M (M is a positive integer) time units of receiving the PDSCH.
  • M is a positive integer
  • a BWP continues to monitor the PDCCH.
  • the network device continues to send the PDCCH to the first type of terminal device after the first type of terminal device switches back to the first BWP from the second BWP.
  • M time units may be predefined or configured by a network device, and of course may also be determined in other ways, which is not specifically limited in this embodiment of the present disclosure.
  • first BWP and the second BWP reference may be made to the description of the first BWP and the second BWP in FIG. 3 to FIG. 5 , and details are not repeated here.
  • first type of terminal device side data transmission method reference may be made to the description of the terminal device side data transmission method in FIG. 3 to FIG. 5 .
  • the network device sends the first PDCCH whose bandwidth is within its own receiving bandwidth to the first type terminal device on the first BWP, and sends the PDSCH scheduled by the first PDCCH on the second BWP.
  • the terminal device monitors the first PDCCH at the first BWP, it can receive the PDSCH at the second BWP based on the first PDCCH. In this way, the terminal device can implement cross-BWP PDSCH scheduling.
  • an embodiment of the present disclosure also provides a communication device, which may be a terminal device in a communication system or a chip or a system-on-chip in a terminal device, and may also be a terminal device used to implement the above implementations.
  • the communication device can implement the functions performed by the terminal device in the foregoing embodiments, and these functions can be implemented by executing corresponding software through hardware. These hardware or software include one or more modules with corresponding functions mentioned above.
  • FIG. 7 is a schematic structural diagram of a communication device in an embodiment of the present disclosure. Referring to FIG.
  • the communication device 70 includes: a receiving module 71 configured to monitor the first physical downlink control channel PDCCH at the first BWP, based on the first BWP A PDCCH receives the physical downlink shared channel PDSCH at the second BWP, the bandwidth of the first PDCCH is within the receiving bandwidth of the terminal equipment, and the first PDCCH is used for scheduling the PDSCH.
  • a receiving module 71 configured to monitor the first physical downlink control channel PDCCH at the first BWP, based on the first BWP
  • a PDCCH receives the physical downlink shared channel PDSCH at the second BWP, the bandwidth of the first PDCCH is within the receiving bandwidth of the terminal equipment, and the first PDCCH is used for scheduling the PDSCH.
  • the apparatus further includes: a processing module 72, configured to parse the content of the control information contained in the first PDCCH based on the configuration information of the second BWP.
  • system information is carried in the PDSCH.
  • the bandwidth of the second BWP is greater than the receiving bandwidth of the terminal device.
  • the second BWP corresponds to the frequency domain resource of CORESET0.
  • the bandwidth of the first BWP is smaller than the receiving bandwidth of the terminal device.
  • the receiving module 71 is further configured to switch from the first BWP to the second BWP and receive the PDSCH at the second BWP in response to monitoring the first PDCCH at the first BWP.
  • the receiving module 71 is further configured to determine a switching delay; and stop monitoring downlink information within the switching delay. It can be understood that the handover delay is the duration for the terminal device to handover from the first BWP to the second BWP.
  • the first PDCCH further carries the scheduling delay of the PDSCH, and the scheduling delay is greater than or equal to the handover delay. It can be understood that the scheduling delay is the length of time that the terminal equipment delays scheduling the PDSCH.
  • the receiving module 71 is further configured to stop monitoring the PDCCH at the first BWP in response to receiving the PDSCH at the second BWP.
  • the receiving module 71 is further configured to switch from the second BWP to the first BWP after the second BWP finishes receiving the PDSCH or after M time units of finishing receiving the PDSCH, and The BWP continues to monitor the PDCCH, and M is a positive integer.
  • the receiving module 71 mentioned in the embodiments of the present disclosure may be a receiving interface, a receiving circuit, or a receiver, etc.; the processing module 72 may be one or more processors.
  • an embodiment of the present disclosure also provides a communication device, which may be a network device in a communication system or a chip or a system on a chip of a network device, and may also be used in a terminal device to implement the above-mentioned embodiments
  • the function module of the method can implement the functions performed by the terminal device in the foregoing embodiments, and these functions can be implemented by executing corresponding software through hardware.
  • These hardware or software include one or more modules with corresponding functions mentioned above.
  • FIG. 8 is a schematic structural diagram of another communication device in an embodiment of the present disclosure. Referring to FIG.
  • the communication device 80 includes: a configuration module 81 configured to configure a first BWP and a second BWP for a first type of terminal equipment , the first BWP is used to send the first physical downlink control channel PDCCH to the first type of terminal equipment, the second BWP is used to send the first physical downlink shared channel PDSCH to the first type of terminal equipment, the first PDCCH is used to schedule the PDSCH, and the second BWP is used to send the first physical downlink shared channel PDSCH to the first type of terminal equipment.
  • the bandwidth of a PDCCH is within the receiving bandwidth of the first type of terminal equipment.
  • the configuration module 81 is further configured to generate the content of the control information contained in the first PDCCH based on the configuration information of the second BWP.
  • the above-mentioned apparatus 80 further includes: a sending module 82, configured to send a second PDCCH to a second type of terminal equipment in a second BWP, the second PDCCH is used to schedule a PDSCH, and the capability of the second type of terminal equipment Different from the capabilities of the first type of terminal equipment.
  • a sending module 82 configured to send a second PDCCH to a second type of terminal equipment in a second BWP, the second PDCCH is used to schedule a PDSCH, and the capability of the second type of terminal equipment Different from the capabilities of the first type of terminal equipment.
  • system information is carried in the PDSCH.
  • the bandwidth of the second BWP is greater than the receiving bandwidth of the first type of terminal device.
  • the second BWP corresponds to the frequency domain resource of CORESET0.
  • the bandwidth of the first BWP is smaller than the receiving bandwidth of the first type of terminal device.
  • the sending module 82 is further configured to indicate the scheduling delay of the PDSCH, the first PDCCH includes the scheduling delay, and the scheduling delay is greater than or equal to the switching delay of the first type of terminal equipment.
  • the scheduling delay is the time length during which the first type of terminal equipment delays scheduling the PDSCH
  • the switching delay is the time length during which the first type of terminal equipment switches from the first BWP to the second BWP.
  • the sending module 82 is further configured to stop sending downlink information to the first type of terminal device within the switching delay.
  • the sending module 82 is further configured to, in response to the first type of terminal device receiving the PDSCH at the second BWP, stop sending the PDCCH to the first type of terminal device at the first BWP.
  • the sending module 82 is further configured to determine the time when the first type of terminal equipment switches from the second BWP to the first BWP; after the time, the first BWP sends the PDCCH to the first type of terminal equipment.
  • the sending module 82 mentioned in the embodiment of the present disclosure may be a receiving interface, a receiving circuit, or a receiver, etc.; the configuration module 81 may be one or more processors.
  • a communication device such as a terminal device, including: an antenna; a memory; and a processor, respectively connected to the antenna and the memory, and configured to control the antenna by executing computer-executable instructions stored in the memory
  • a communication device including: an antenna; a memory; and a processor, respectively connected to the antenna and the memory, and configured to control the antenna by executing computer-executable instructions stored in the memory
  • embodiments of the present disclosure provide a communication device, where the communication device may be the terminal device or the network device described in one or more of the foregoing embodiments.
  • 9 is a schematic structural diagram of a communication device in an embodiment of the present disclosure. Referring to FIG. equipment95.
  • memory 92 may include computer storage media in the form of volatile and/or non-volatile memory, such as read-only memory and/or random access memory.
  • Memory 92 may store operating systems, application programs, other program modules, executable code, program data, user data, and the like.
  • Input devices 94 such as a keyboard or pointing devices such as a mouse, trackball, touch pad, microphone, joystick, game pad, satellite TV dish, scanner or similar, may be used to enter commands and information to a communication device. These input devices can be connected to the processor 91 via the bus 93 .
  • Output device 95 can be used for communication equipment output information, and except monitor, output device 95 also can be other peripheral output devices, as loudspeaker and/or printing equipment, and these output devices also can be connected to processor 91 by bus 93 .
  • the communication device can be connected to a network through the antenna 96, for example, connected to a local area network (local area network, LAN).
  • a local area network local area network, LAN
  • computer-executed instructions stored in the control device may be stored in remote storage devices and are not limited to local storage.
  • the communication device can execute the communication method on the terminal device side or the network device side in the above embodiments, and the specific execution process refers to the above embodiments, I won't repeat them here.
  • the memory 92 stores computer-executed instructions for implementing the functions of the receiving module 71 and the processing module 72 in FIG. 7 .
  • the functions/implementation process of the receiving module 71 and the processing module 72 in FIG. 7 can be implemented by the processor 91 in FIG. 9 invoking the computer-executed instructions stored in the memory 92.
  • the processor 91 in FIG. 9 invoking the computer-executed instructions stored in the memory 92.
  • the memory 92 stores computer-executed instructions for realizing the functions of the configuration module 81 and the sending module 82 in FIG. 8 .
  • the functions/implementation process of the configuration module 81 and the sending module 82 in FIG. 8 can be implemented by the processor 91 in FIG. 9 invoking the computer-executed instructions stored in the memory 92.
  • the processor 91 in FIG. 9 invoking the computer-executed instructions stored in the memory 92.
  • the terminal device may be a mobile phone, a computer, a digital broadcasting terminal device, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like.
  • FIG. 10 is a schematic structural diagram of a terminal device in an embodiment of the present disclosure.
  • the terminal device 100 may include one or more of the following components: a processing component 101, a memory 102, a power supply component 103, a multimedia component 104, An audio component 105 , an input/output (I/O) interface 106 , a sensor component 107 , and a communication component 108 .
  • the processing component 101 generally controls the overall operations of the terminal device 100, such as operations associated with display, telephone calls, data communication, camera operations, and recording operations.
  • the processing component 101 may include one or more processors 1011 to execute instructions, so as to complete all or part of the steps of the above method.
  • processing component 101 may include one or more modules to facilitate interaction between processing component 101 and other components.
  • processing component 101 may include a multimedia module to facilitate interaction between multimedia component 104 and processing component 101 .
  • the memory 102 is configured to store various types of data to support operations at the terminal device 100 . Examples of such data include instructions for any application or method operating on the terminal device 100, contact data, phonebook data, messages, pictures, videos, and the like.
  • the memory 102 can be implemented by any type of volatile or non-volatile storage device or their combination, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EPROM erasable Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Magnetic or Optical Disk Magnetic Disk
  • the power supply component 103 provides power to various components of the terminal device 100 .
  • the power supply component 103 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the terminal device 100 .
  • the multimedia component 104 includes a screen providing an output interface between the terminal device 100 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user.
  • the touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may not only sense a boundary of a touch or a swipe action, but also detect duration and pressure associated with the touch or swipe operation.
  • the multimedia component 104 includes a front camera and/or a rear camera. When the terminal device 100 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capability.
  • the audio component 105 is configured to output and/or input audio signals.
  • the audio component 105 includes a microphone (MIC), which is configured to receive an external audio signal when the terminal device 100 is in an operation mode, such as a calling mode, a recording mode and a voice recognition mode. Received audio signals may be further stored in memory 102 or transmitted via communication component 108 .
  • the audio component 105 also includes a speaker for outputting audio signals.
  • the I/O interface 106 provides an interface between the processing component 101 and a peripheral interface module, and the peripheral interface module may be a keyboard, a click wheel, a button, and the like. These buttons may include, but are not limited to: a home button, volume buttons, start button, and lock button.
  • the sensor component 107 includes one or more sensors for providing status assessments of various aspects for the terminal device 100 .
  • the sensor component 107 can monitor the opening/closing state of the terminal device 100, the relative positioning of components, for example, the components are the display and the keypad of the terminal device 100, and the sensor component 107 can also detect the terminal device 100 or a component of the terminal device 100. Changes in position, presence or absence of user contact with the terminal device 100 , orientation or acceleration/deceleration of the terminal device 100 and temperature changes of the terminal device 100 .
  • the sensor assembly 107 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact.
  • the sensor assembly 107 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 107 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor.
  • the communication component 108 is configured to facilitate wired or wireless communication between the terminal device 100 and other devices.
  • the terminal device 100 can access a wireless network based on communication standards, such as Wi-Fi, 2G, 3G, 4G or 5G, or a combination thereof.
  • the communication component 108 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel.
  • communication component 108 also includes a near field communication (NFC) module to facilitate short-range communication.
  • the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, Infrared Data Association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID Radio Frequency Identification
  • IrDA Infrared Data Association
  • UWB Ultra Wideband
  • Bluetooth Bluetooth
  • the terminal device 100 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable A programmable gate array (FPGA), controller, microcontroller, microprocessor or other electronic component implementation for performing the methods described above.
  • ASICs Application Specific Integrated Circuits
  • DSPs Digital Signal Processors
  • DSPDs Digital Signal Processing Devices
  • PLDs Programmable Logic Devices
  • FPGA Field Programmable A programmable gate array
  • controller microcontroller, microprocessor or other electronic component implementation for performing the methods described above.
  • embodiments of the present disclosure provide a network device, which is consistent with the network device in one or more embodiments above.
  • FIG. 11 is a schematic structural diagram of a network device in an embodiment of the present disclosure.
  • the network device 110 may include a processing component 111, which further includes one or more processors, and a memory represented by a memory 112 A resource is used to store instructions executable by the processing component 111, such as an application program.
  • the application program stored in memory 112 may include one or more modules each corresponding to a set of instructions.
  • the processing component 111 is configured to execute instructions, so as to execute any one of the aforementioned methods applied to the network device.
  • Network device 110 may also include a power supply component 113 configured to perform power management of network device 110, a wired or wireless network interface 114 configured to connect network device 110 to a network, and an input-output (I/O) interface 115 .
  • the network device 110 may operate based on an operating system stored in the memory 112, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM or the like.
  • the embodiments of the present disclosure also provide a computer-readable storage medium, in which instructions are stored; when the instructions are run on the computer, the terminal is used to execute the above-mentioned one or more embodiments.
  • the communication method on the device side or the network device A side.
  • an embodiment of the present disclosure also provides a computer program or a computer program product.
  • the computer program product When the computer program product is executed on a computer, the computer implements the terminal device side or the network device A in one or more embodiments above. side communication method.

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Abstract

本公开实施例提供了一种数据传输方法、通信装置及通信设备。该数据传输方法可以包括：终端设备在第一带宽部分监听第一PDCCH，基于所述第一PDCCH在第二带宽部分接收PDSCH，所述第一PDCCH的带宽位于所述终端设备的接收带宽内，所述第一PDCCH用于调度所述PDSCH。在本公开中，终端设备在第一BWP监听带宽位于自身接收带宽之内的第一PDCCH，基于第一PDCCH在第二BWP接收PDSCH，以实现终端设备跨BWP调度PDSCH。

Description

一种数据传输方法、通信装置及通信设备 技术领域
本公开涉及无线通信技术领域，尤其涉及一种数据传输方法、通信装置及通信设备。
背景技术
在新空口(new radio，NR)技术中，用于调度系统信息(sysytem information block，SIB)的物理下行控制信道(physical download control channel，PDCCH)在控制资源集合(CORESET)0中传输，用于承载SIB的物理下行共享信道(physical download share channel，PDSCH)也在CORESET0所对应的频率范围内传输。
但是，目前除了一些具有正常功能的终端设备之外，还存在一些能力受限的终端设备，例如NR轻量(light)终端设备、能力下降(redced capability，RedCap)终端设备或者其他演进的终端设备。对于这些终端设备来说，其接收带宽可能受限，如何实现对PDSCH的调度是亟待解决的问题。
发明内容
本公开提供了一种数据传输方法、通信装置及通信设备，以实现跨带宽部分调度PDSCH。
根据本公开的第一方面提供一种数据传输方法，该方法包括：终端设备在第一带宽部分(band width part，BWP)监听第一PDCCH，基于第一PDCCH在第二BWP接收PDSCH，第一PDCCH的带宽位于终端设备的接收带宽内，第一PDCCH用于调度PDSCH。
在一些可能的实施方式中，该方法还包括：响应于终端设备在第一BWP监听到第一PDCCH，终端设备基于第二BWP的配置信息解析第一PDCCH所包含的控制信息内容。
在一些可能的实施方式中，PDSCH中承载有系统消息。
在一些可能的实施方式中，第二BWP的带宽大于终端设备的接收带宽。
在一些可能的实施方式中，第二BWP与控制资源集合CORESET0的频域资源对应。
在一些可能的实施方式中，第一BWP的带宽小于终端设备的接收带宽。
在一些可能的实施方式中，该方法还包括：响应于在终端设备在第一BWP监听到第一PDCCH，终端设备由第一BWP切换至第二BWP，并在第二BWP接收PDSCH。
在一些可能的实施方式中，该方法还包括：终端设备确定切换时延；终端设备在切换时延内停止监听下行信息。
在一些可能的实施方式中，第一PDCCH中还承载有PDSCH的调度时延，调度时延大于或者等于切换时延。
在一些可能的实施方式中，该方法还包括：响应于终端设备在第二BWP接收PDSCH，终端设备停止在第一BWP监听PDCCH。
在一些可能的实施方式中，该方法还包括：响应于终端设备在第二BWP完成接收PDSCH或完成 接收PDSCH的M个时间单元后，终端设备从第二BWP切换至第一BWP，并在第一BWP继续监听PDCCH，M为正整数。
在一些可能的实施方式中，终端设备为增强的能力受限eRedCap终端设备。
根据本公开的第二方面提供一种数据传输方法，该方法包括：网络设备为第一类型终端设备配置第一BWP和第二BWP，第一BWP用于向第一类型终端设备发送第一PDCCH，第二BWP用于向第一类型终端设备发送PDSCH，第一PDCCH用于调度PDSCH，第一PDCCH的带宽位于第一类型终端设备的接收带宽内。
在一些可能的实施方式中，该方法还包括：网络设备基于第二BWP的配置信息生成第一PDCCH所包含的控制信息内容。
在一些可能的实施方式中，该方法还包括：网络设备在第二BWP向第二类型终端设备发送第二PDCCH，第二PDCCH用于调度PDSCH，第二类型终端设备的能力与第一类型终端设备的能力不同。
在一些可能的实施方式中，该PDSCH中承载有系统消息。
在一些可能的实施方式中，第二BWP的带宽大于第一类型终端设备的接收带宽。
在一些可能的实施方式中，第二BWP与控制资源集合CORESET0的频域资源对应。
在一些可能的实施方式中，第一BWP的带宽小于第一类型终端设备的接收带宽。
在一些可能的实施方式中，该方法还包括：网络设备指示PDSCH的调度时延，第一PDCCH中包括调度时延，调度时延大于或者等于第一类型终端设备的切换时延。
在一些可能的实施方式中，该方法还包括：网络设备在切换时延内停止向第一类型终端设备发送下行信息。
在一些可能的实施方式中，该方法还包括：响应于第一类型终端设备在第二BWP接收PDSCH，网络设备停止在第一BWP向第一类型终端设备发送PDCCH。
在一些可能的实施方式中，该方法还包括：网络设备确定第一类型终端设备由第二BWP切换至第一BWP的时刻；在时刻之后，网络设备在第一BWP向第一类型终端设备发送PDCCH。
根据本公开的第三方面提供一种通信装置，该通信装置可以为通信系统中的终端设备或者终端设备中的芯片或者片上系统，还可以为终端设备中用于实现上述各个实施例的方法的功能模块。该通信装置可以实现上述各实施例中终端设备所执行的功能，这些功能可以通过硬件执行相应的软件实现。这些硬件或软件包括一个或多个上述功能相应的模块。该通信装置包括：接收模块，用于在第一BWP监听第一物理下行控制信道PDCCH，基于第一PDCCH在第二BWP接收物理下行共享信道PDSCH，第一PDCCH的带宽位于终端设备的接收带宽内，第一PDCCH用于调度PDSCH。
在一些可能的实施方式中，该装置还包括：处理模块用于基于第二BWP的配置信息解析第一PDCCH所包含的控制信息内容。
在一些可能的实施方式中，PDSCH中承载有系统消息。
在一些可能的实施方式中，第二BWP的带宽大于终端设备的接收带宽。
在一些可能的实施方式中，第二BWP与控制资源集合CORESET0的频域资源对应。
在一些可能的实施方式中，第一BWP的带宽小于终端设备的接收带宽。
在一些可能的实施方式中，接收模块，还用于响应于在第一BWP监听到第一PDCCH，由第一BWP切换至第二BWP，并在第二BWP接收PDSCH。
在一些可能的实施方式中，接收模块，还用于确定切换时延；在切换时延内停止监听下行信息。
在一些可能的实施方式中，第一PDCCH中还承载有PDSCH的调度时延，调度时延大于或者等于切换时延。
在一些可能的实施方式中，接收模块，还用于响应于在第二BWP接收PDSCH，停止在第一BWP监听PDCCH。
在一些可能的实施方式中，接收模块，还用于响应于在第二BWP完成接收PDSCH或完成接收PDSCH的M个时间单元后，从第二BWP切换至第一BWP，并在第一BWP继续监听PDCCH，M为正整数。
根据本公开的第四方面提供一种通信装置，该通信装置可以为通信系统中的网络设备或者网络设备的芯片或者片上系统，还可以为终端设备中用于实现上述各个实施例的方法的功能模块。该通信装置可以实现上述各实施例中终端设备所执行的功能，这些功能可以通过硬件执行相应的软件实现。这些硬件或软件包括一个或多个上述功能相应的模块。该通信装置包括：配置模块，用于为第一类型终端设备配置第一BWP和第二BWP，第一BWP用于向第一类型终端设备发送第一物理下行控制信道PDCCH，第二BWP用于向第一类型终端设备发送第一物理下行共享信道PDSCH，第一PDCCH用于调度PDSCH，第一PDCCH的带宽位于第一类型终端设备的接收带宽内。
在一些可能的实施方式中，配置模块，还用于基于第二BWP的配置信息生成第一PDCCH所包含的控制信息内容。
在一些可能的实施方式中，上述装置还包括：发送模块，用于在第二BWP向第二类型终端设备发送第二PDCCH，第二PDCCH用于调度PDSCH，第二类型终端设备的能力与第一类型终端设备的能力不同。
在一些可能的实施方式中，PDSCH中承载有系统消息。
在一些可能的实施方式中，第二BWP的带宽大于第一类型终端设备的接收带宽。
在一些可能的实施方式中，第二BWP与控制资源集合CORESET0的频域资源对应。
在一些可能的实施方式中，第一BWP的带宽小于第一类型终端设备的接收带宽。
在一些可能的实施方式中，发送模块，还用于指示PDSCH的调度时延，第一PDCCH中包括调度时延，调度时延大于或者等于第一类型终端设备的切换时延。
在一些可能的实施方式中，发送模块，还用于在切换时延内停止向第一类型终端设备发送下行信息。
在一些可能的实施方式中，发送模块，还用于响应于第一类型终端设备在第二BWP接收PDSCH，停止在第一BWP向第一类型终端设备发送PDCCH。
在一些可能的实施方式中，发送模块，还用于确定第一类型终端设备由第二BWP切换至第一BWP的时刻；在时刻之后，在第一BWP向第一类型终端设备发送PDCCH。
根据本公开的第五方面提供一种通信设备，如终端设备，包括：天线；存储器；处理器，分别与天线及存储器连接，被配置为通执行存储在存储器上的计算机可执行指令，控制天线的收发，并能够实现如本公开第一方面及其可能的实施方式中任一项的数据传输方法。
根据本公开的第六方面提供一种通信设备，如网络设备，包括：天线；存储器；处理器，分别与天线及存储器连接，被配置为通执行存储在存储器上的计算机可执行指令，控制天线的收发，并能够实现如本公开第二方面及其可能的实施方式中任一项的数据传输方法。
根据本公开的第七方面提供一种计算机存储介质，包括：处理模块，用于计算机存储介质存储有计算机可执行指令，其中，计算机可执行指令被处理器执行后能够实现如本公开第一方面、第二方面及其可能的实施方式中任一项的数据传输方法。
在本公开中，终端设备在第一BWP监听带宽位于自身接收带宽之内的第一PDCCH。由于第一PDCCH用于调度PDSCH，终端设备可以基于第一PDCCH在第二BWP接收PDSCH，如此，便实现了终端设备跨BWP调度PDSCH。
应当理解的是，本公开的第三至七方面与本公开的第一至二方面的技术方案一致，各方面及对应的可行实施方式所取得的有益效果相似，不再赘述。
附图说明
图1为本公开实施例中的一种通信系统的结构示意图；
图2所示为本公开实施例中的一种BWP的示意图；
图3为本公开实施例中的一种数据传输方法在终端设备侧的实施流程示意图；
图4为本公开实施例中的一种频域资源的示意图；
图5为本公开实施例中的另一种数据传输方法在终端设备侧的实施流程示意图；
图6为本公开实施例中的一种数据传输方法在网络设备侧的实施流程图；
图7为本公开实施例中的一种通信装置的结构示意图；
图8为本公开实施例中的另一种通信装置的结构示意图；
图9为本公开实施例中的一种通信设备的结构示意图；
图10为本公开实施例中的一种终端设备的结构示意图；
图11为本公开实施例中的一种网络设备的结构示意图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开实施例相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本公开实施例的一些方面相一致的装置和方法的例子。
在本公开实施例使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本公开实施例。在本公开实施例和所附权利要求书中所使用的单数形式的“一种”和“该”也旨在包括多数形式，除非上下 文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
应当理解，尽管在本公开实施例可能采用术语“第一”、“第二”、“第三”等来描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如，在不脱离本公开实施例范围的情况下，“第一信息”也可以被称为“第二信息”，类似地，“第二信息”也可以被称为“第一信息”。取决于语境，如在此所使用的词语“如果”可以被解释成为“在……时”或“当……时”或“响应于确定”。
本公开实施例提供的技术方案可以应用于通信设备间的无线通信。通信设备间的无线通信可以包括：网络设备和终端设备间的无线通信、网络设备和网络设备间的无线通信、以及终端设备和终端设备间的无线通信。在本公开实施例中，术语“无线通信”还可以简称为“通信”，术语“通信”还可以描述为“数据传输”、“信息传输”或“传输”。
本公开实施例提供一种通信系统。该通信系统可以为基于蜂窝移动通信技术的通信系统。图1为本公开实施例中的一种通信系统的结构示意图，参见图1所示，该通信系统10可以包括：终端设备11和网络设备12。
在一实施例中，上述终端设备11可以为一种向用户提供语音或者数据连接性的设备。在一些实施例中，终端设备也可以称为用户设备(user equipment，UE)、移动台(mobile station)、用户单元(subsriber unit)、站台(station)或者终端(terminal equipment，TE)等。终端设备可以为蜂窝电话(cellular phone)、个人数字助理(personal digital assistant，PDA)、无线调制解调器(modem)、手持设备(handheld)、膝上型电脑(laptop computer)、无绳电话(cordless phone)、无线本地环路(wireless local loop，WLL)台或者平板电脑(pad)等。随着无线通信技术的发展，可以接入通信系统、可以与通信系统的网络侧进行通信或者通过通信系统与其他设备进行通信的设备都是本公开实施例中的终端设备。例如，智能交通中的终端和汽车、智能家居中的家用设备、智能电网中的电力抄表仪器、电压监测仪器、环境监测仪器、智能完全网络中的视频监控仪器、收款机等。在本公开实施例中，终端设备可以与网络设备进行通信，多个终端设备之间也可以进行通信。终端设备可以是静态固定的，也可以移动的。
在本公开实施例中，上述移动设备101可以为一些具有正常功能的终端设备，还可以为能力受限的终端，如NR light终端设备、RedCap终端设备、增强的能力受限的终端设备等。
需要说明的是，在4G系统中，为了支持物联网业务提出了机器类通信(machine type communication，MTC)和窄带物联网(narrow band internet of thing，NB-IoT)两大技术。这两大技术主要针对的是低速率，高时延等场景。比如抄表，环境监测等场景。NB-IoT目前最大只能支持几百kbps(千比特每秒)的速率，MTC目前最大只能支持几Mbps(兆比特每秒)的速率。但随着物联网业务的不断发展，比如视频监控，智能家居，可穿戴设备和工业传感监测等业务的普及，这些业务通常要求几十到一百Mbps的速率，同时对时延也有相对较高的要求。因此，4G系统中的MTC技术、NB-IoT技术很难满足要求。基于这种情况，提出了在5G NR中再设计一种新的终端设备，用以覆盖上述业务的要求。在目前的第三代合作伙伴计划(3rd generation partnership project，3GPP)标准化中，这种新的终端设备类型被称为能力受限的终端设备(即reduced capability UE，即RedCap UE)。由于RedCap技术主要针对的是中速应 用，RedCap UE在5G的FR1频段下的带宽最大为20MHz。在新一版本的3GPP标准中，针对RedCap的适用带宽进行了进一步的缩减，进一步缩减到了5MHz，此时，终端设备可以被称为增强的能力受限的终端设备(enhance reduced capability UE，即eRedCap UE)。
上述网络设备12可以为接入网侧用于支持终端接入通信系统的设备。例如，可以是4G接入技术通信系统中的演进型基站(evolved NodeB，eNB)、5G接入技术通信系统中的下一代基站(next generation nodeB，gNB)、发送接收点(transmission reception point，TRP)、中继节点(relay node)、接入点(access point，AP)等。
在上述通信系统中，网络设备可以管理一个或者多个小区，一个小区中可以包括整数个终端设备。在小区中，网络设备和终端设备可以利用空口资源进行无线通信。在一种可能的通信系统中，例如5G系统中，空口资源可以包括频域资源。频域资源可以位于设置的频率范围，频率范围还可以称为频带(band)或频段。频域资源的中心点可以称为中心频点，频域资源的宽度可以称为带宽(bandwidth，BW)。
当网络设备和终端设备利用频域资源进行无线通信时，网络设备管理载波频域资源，从载波频域资源中为终端设备分配频域资源，使得网络设备和终端设备可以利用分配的频域资源进行通信。其中，载波频域资源可以是系统频域资源，还可以是网络设备能够管理和分配的频域资源，也可以是能够用于进行网络设备和终端设备间通信的频域资源。
这里，载波频域资源可以是一段连续的频域资源，此时，载波频域资源还可以被称为载波。载波的宽度可以称为系统带宽、载波带宽或传输带宽。在本公开各实施例中，频域资源还可以被称为频率资源或者其它名称，本公开实施例对此不做具体限制。
在一些可能的实施方式中，网络设备为终端设备分配频域资源的一种可能的设计为：网络设备从载波中为终端设备配置BWP，网络设备在配置的BWP中对终端设备进行调度。该设计还可以描述为：网络设备从载波中为终端设备配置BWP，网络设备可以将配置的BWP中的部分或全部资源分配给终端设备，用于进行网络设备和终端设备间的通信。其中，网络设备为终端设备配置的BWP包括于载波中，可以是载波中连续的或者不连续的部分资源，也可以是载波中的全部资源。BWP还可以称为带宽资源、频域资源部分、部分频域资源、频率资源部分、部分频率资源、载波BWP或者其它名称，本公开实施例对此不做具体限制。当BWP为载波中的一段连续资源时，BWP还可以称为子带、窄带或者其它名称，本公开实施例对此不做具体限制。示例性地，图2所示为本公开实施例中的一种BWP的示意图，参见图2所示，BWP为载波中一段连续资源，该BWP的带宽为W，该BWP的中心频点为F，还可以描述为，该BWP中最高频点的频率为F+2/W，该BWP中最低频点的频率为F-W/2。
在NR技术中，用于调度SIB(如SIB1)的PDCCH在CORESET 0中传输，用于承载SIB的PDSCH也在CORESET0所对应的频率范围内传输。这里，术语“承载”也可以描述为“携带”。
但是，对于上述能力受限的终端设备来说，CORESET0的带宽会超过这些终端设备的带宽，那么，在这种情况下，会对PDCCH的监听带来困难，从而无法对承载SIB的PSDCH进行调度。
需要说明的是，在本公开实施中，终端设备的带宽可以理解为终端设备的带宽能力，或者还可以描述为终端设备支持的带宽。终端设备的带宽可以包括终端设备的下行带宽，或者可以描述为终端设备的 接收带宽、下行接收带宽等，也就是终端设备进行接收时所支持的带宽。在一些可能的实施例中，终端设备的带宽还可以包括终端设备的上行带宽，或者可以描述为终端设备的发送带宽、上行发送贷款等，也就是终端设备进行发送时所支持的带宽。终端设备的接收带宽和终端设备的发送带宽可以相同，也可以不相同，本公开实施例对此不做限制。
为了解决上述问题，本公开提供一种数据传输方法，该方法可以应用于上述通信系统中的终端设备中。
图3为本公开实施例中的一种数据传输方法在终端设备侧的实施流程示意图，参见图3所示，上述方法可以包括：
S301，终端设备在第一BWP监听第一PDCCH。
其中，第一PDCCH的带宽位于终端设备的接收带宽内，第一PDCCH用于调度PDSCH。
可以理解的，当终端设备随机接入网络设备时，终端设备可以根据如主信息块(master information block，MIB)、高层信令、预先定义等指示，在第一BWP监听第一PDCCH。
这里，上述高层信令可以为无线资源控制(radio resourcecontrol，RRC)信令、广播消息、系统消息、媒体接入控制(medium access control，MAC)控制元素(control element，CE)、DCI或PDSCH携带的信令。
需要说明的是，由于第一PDCCH的带宽位于终端设备的接收带宽内，那么，终端设备一旦在第一BWP上监听到第一PDCCH，即可接收该第一PDCCH。然后，终端设备对第一PDCCH进行解析，以得到承载于第一PDCCH的控制信息内容，如下行控制信息(downlink control information，DCI)中各个信息域的内容。示例性地，第一PDCCH承载的DCI可以包括PDSCH的调度信息。
S302，终端设备基于第一PDCCH在第二BWP接收PDSCH。
可以理解的，终端设备在监听到第一PDCCH，并接收第一PDCCH后，可以对第一PDCCH进行解析，以获得第一PDCCH中PDSCH的调度信息。然后，终端设备根据PDSCH的调度信息，在第二BWP上接收PDSCH，如此，实现通过第一BWP上的PDCCH调度第二BWP上的PDSCH，即跨BWP调度PDSCH。
示例性的，第一BWP可以为终端设备的专用(dedicated)BWP或者默认(default)BWP。第二BWP可以为终端设备的初始(initial)BWP，用于承载SIB；第二BWP也可以为终端设备的专用(dedicated)BWP。
在一些可能的实施方式中，上述PDSCH中承载有SIB，示例性的，PDSCH中承载SIB1。
在一些可能的实施方式中，第二BWP的带宽大于终端设备的接收带宽。
示例性的，第二BWP与CORESET0的频域资源对应，也可以描述为第二BWP的带宽包含CORESET0占用的频域带宽。
在一些可能的实施方式中，第一BWP可以仅传输用于调度第二BWP中的PDSCH的第一PDCCH；第二BWP可以仅传输由第一PDCCH调度的PDSCH，也可以传输其他PDCCH，这些PDCCH可以用于其他终端设备(如能力不同的终端设备)在第二BWP调度PDSCH，或者用于在其他BWP调度其他的PSDCH。
示例性的，图4为本公开实施例中的一种频域资源的示意图，参见图4所示，网络设备还可以在第二BWP上向一些非能力受限的终端设备发送第二PDCCH，第二PDCCH也可以调度第二BWP中的PDSCH。可选的，第二PDCCH占用的频域资源可以包含在第二BWP所占用的频域资源中，进一步地，第二PDCCH占用的频域资源可以位于第二BWP中的CORESET0内，第二PDCCH的带宽可以小于或者等于第二BWP中CORESET0占用的频域带宽。可见，第二BWP中位于CORESET0的第二PDCCH和第一BWP中的第一PDCCH可以调度同一PDSCH。
在一些可能的实施方式中，第一BWP的带宽小于终端设备的接收带宽。
在一实施例中，对于如eRedCap UE等能力受限的终端设备，第二BWP的带宽会大于终端设备的接收带宽，那么，如果终端设备在第二BWP上监听PDCCH，就会存在会监听不到PDCCH的可能，进而无法对PDSCH进行调度。那么，为了使这些终端设备调度PDSCH以获得SIB，第一BWP的带宽小于终端设备的接收带宽。
在一些可能的实施方式中，由于第一PDCCH的带宽与终端设备的接收带宽内，那么，终端设备可以在第一BWP监听到第一PDCCH。响应于终端设备在第一BWP监听到第一PDCCH，上述方法还可以包括：终端设备可以基于第二BWP的配置信息解析第一PDCCH所包含的控制信息内容。
可以理解的，第一PDCCH是用于调度PDSCH的，PDSCH所占用的频域资源(即第二BWP)与第一PDCCH的传输内容(也可以描述为第一PDCCH所包含的控制信息内容)是关联的。因此，网络设备在生成第一PDCCH的传输内容时可以根据第二BWP的配置信息进行，使得终端设备能够基于第一PDCCH接收PDSCH，并进一步解析PDSCH中的SIB。示例性的，上述第二BWP的配置信息可以包括第二BWP的带宽、子载波间隔等。
在本公开实施例中，终端设备在第一BWP监听带宽位于自身接收带宽之内的第一PDCCH。由于第一PDCCH用于调度PDSCH，终端设备可以基于第一PDCCH在第二BWP接收PDSCH，如此，便实现了终端设备跨BWP调度PDSCH。
在一些可能的实施方式中，本公开实施例还提供另一种数据传输的方法，该方法仍可以应用于通信系统中的终端设备。
图5为本公开实施例中的另一种数据传输方法在终端设备侧的实施流程示意图，参见图5中实线所示，上述方法可以包括：
S501，终端设备在第一BWP监听第一PDCCH。
S502，响应于在终端设备在第一BWP监听到第一PDCCH，终端设备由第一BWP切换至第二BWP。
可以理解的，对于配置有多个BWP的终端设备来说，在一个时刻只能有一个BWP处于激活状态，此时，该BWP可以称为激活BWP。那么，在S501中，激活BWP为第一BWP。终端设备在第一BWP上监听到第一PDCCH后，由第一BWP切换至第二BWP，即激活第二BWP，然后执行S503，在第二BWP上接收PSDCH。
在实际应用中，可以预定义一切换时延(如描述为切换时延A、第一切换时延等)，即终端设备由第一BWP切换至第二BWP的时长。终端设备在解析到第一PDCCH中的控制信息内容之后，确定 切换时延，并执行射频重调(RF retuning)或BWP切换。然后，在切换时延A内，终端设备由第一BWP切换至第二BWP。
示例性的，上述切换时延A可以为X(X为正整数)个时间单元，时间单元可以为时隙(slot)、子时隙(sub-slot)、符号(symbol)等。
可选的，终端设备在上述由第一BWP切换至第二BWP的过程中，即在切换时延A内，停止在第一BWP监听下行信息，如下行控制信息(即DCI)、信道状态信息参考信号(channel state information reference signal，CSI-RS)等。
进一步地，第一PDCCH中还可以携带有PDSCH的调度时延，以指示终端设备延迟Y个时间单元(即调度时延)调度PDSCH。
可选的，调度时延大于或者等于切换时延A，即Y大于或等于X的正整数。如此，终端设备可以在由第一BWP切换至第二BWP之后能够接收到PDSCH，提高PDSCH的调度的可靠性。
S503，终端设备基于第一PDCCH在第二BWP接收PDSCH。
需要说明的是，S501和S503的具体实施过程可以参见上述图3中S301和S302的描述，在此不做赘述。
在一些可能的实施方式中，参见图5中虚线所示，上述S503之后，上述方法还可以包括：
S504，响应于终端设备在第二BWP接收PDSCH，终端设备停止在第一BWP监听PDCCH。可以理解的，终端设备在第二BWP接收PDSCH过程中，第一BWP去激活，此时，终端设备停止在第一BWP上监听PDCCH。
在一些可能的实施方式中，仍参见图5中虚线所示，上述S503之后，上述方法还可以包括：
S505，响应于终端设备在第二BWP完成接收PDSCH或者在完成接收PDSCH的M(M为正整数)个时间单元后，终端设备从第二BWP切换至第一BWP，并在第一BWP继续监听PDCCH。上述M个时间单元可以为预定义的或者由网络设备配置的，当然还可以通过其他方式确定，本公开实施例对此不作具体限定。
在一些可能的实施方式中，可以预定义另一切换时延(如描述为切换时延B、第二切换时延等)，即终端设备由第二BWP切换至第一BWP的时长。终端设备在第二BWP完成接收PDSCH或者完成接收PDSCH的M个时间单元后，确定切换时延B，并执行RF retuning或BWP切换。然后，在切换时延B内，终端设备由第二BWP切换回第一BWP。
在实际应用中，所述切换时延B可以与切换时延A相等，即切换时延B为X个时间单元，也可以与切换时延A不等，本公开实施例不做具体限定。
可以理解的，为了降低设备功耗，终端设备可以在带宽较大的BWP完成接收PDSCH后，再切换回带宽较小的BWP。例如，终端设备在第二BWP(如带宽较大的BWP)完成接收PDSCH后，再由第二BWP切换回第一BWP(如带宽较小的BWP)，并在第一BWP继续监听PDCCH。此时，第二BWP去激活，第一BWP激活。
在本公开实施例中，终端设备在第一BWP监听带宽大小位于自身接收带宽之内的第一PDCCH。由于第一PDCCH用于调度PDSCH，终端设备可以基于第一PDCCH在第二BWP接收PDSCH，如此， 便实现了终端设备跨BWP调度PDSCH。进一步地，终端设备可以由第一BWP切换至第二BWP，以接收PDSCH，并在完成接收后，切换回第一BWP，节约设备功耗。
基于相同的发明构思，本公开实施例还提供一种数据传输方法，可以应用于上述通信系统中的网络设备。
图6为本公开实施例中的一种数据传输方法在网络设备侧的实施流程图，参见图6所示，上述方法可以包括：
S601，网络设备为第一类型终端设备配置第一BWP和第二BWP。
示例性的，第一类终端设备可以为能力受限的终端设备，如NR light UE、RedCap UE、eRedCap UE。
可以理解的，网络设备可以为第一类型终端设备确定不同带宽的BWP，并向第一类型终端设备指示这些BWP。具体来说，网络设备可以通过如主信息块(master information block，MIB)、高层信令、预先定义等指示第一BWP的配置信息和第二BWP的配置信息。这里，上述高层信令可以为RRC信令、广播消息、系统消息、MAC CE、DCI或PDSCH携带的信令。
示例性的，第一BWP可以配置为终端设备的专用BWP或者默认BWP。第二BWP可以配置为终端设备的初始BWP，用于承载SIB；第二BWP也可以为终端设备的专用BWP。
在一些可能的实施方式中，第二BWP的带宽大于第一类型终端设备的接收带宽。
在一些可能的实施方式中，第二BWP与CORESET0的频域资源对应，也可以描述为第二BWP的带宽包含CORESET0占用的频域带宽。
在一些可能的实施方式中，第一BWP的带宽小于第一类型终端设备的接收带宽。
在一些可能的实施方式中，第一BWP可以仅传输用于调度第二BWP中的PDSCH的第一PDCCH；第二BWP可以仅传输由第一PDCCH调度的PDSCH，也可以传输其他PDCCH。这些PDCCH可以用于第二类型终端设备在第二BWP调度PDSCH，或者用于第二类型终端设备在其他BWP调度其他的PSDCH。
示例性的，仍参见图4所示，网络设备还可以在第二BWP上向第二类型终端设备发送第二PDCCH，第二PDCCH也可以调度第二BWP中的PDSCH。可选的，第二PDCCH占用的频域资源可以包含在第二BWP所占用的频域资源中，进一步地，第二PDCCH占用的频域资源可以位于第二BWP中的CORESET0内，第二PDCCH的带宽可以小于或者等于第二BWP中CORESET0占用的频域带宽。可见，第二BWP中位于CORESET0的第二PDCCH和第一BWP中的第一PDCCH可以调度同一PDSCH。
在本公开实施例中，第一类型终端设备的能力与第二类型终端设备的能力不同。例如，第一类型终端设备可以为能力受限的终端设备，第二类型终端设备以为具备正常功能的终端设备；或者，第一类型终端设备可以为eRedCap UE，第二类型终端设备以为NR light UE或者eRedCap UE。
S602，网络设备在第一BWP向第一类型终端设备发送第一PDCCH，在第二BWP向第一类型终端设备发送PDSCH。
这里，第一PDCCH用于调度PDSCH，第一PDCCH的带宽位于第一类型终端设备的接收带宽 内。
在一些可能的实施方式中，PDSCH中承载有SIB，示例性的，PDSCH中承载SIB1。
在一些可能的实施方式中，在S602之前，上述方法还可以包括：网络设备基于第二BWP的配置信息生成第一PDCCH所包含的控制信息内容。
可以理解的，第一PDCCH是用于调度PDSCH的，PDSCH所占用的频域资源(即第二BWP)与第一PDCCH的传输内容(也可以描述为第一PDCCH所包含的控制信息内容)是关联的。因此，网络设备在为第一PDCCH生成传输内容时可以根据第二BWP的配置信息进行，使得终端设备能够基于第一PDCCH接收PDSCH，进一步地解析PDSCH中的SIB。示例性的，上述第二BWP的配置信息可以包括第二BWP的带宽、子载波间隔等。
在一些可能的实施方式中，上述方法还包括：网络设备指示PDSCH的调度时延。其中，调度时延可以承载于第一PDCCH(也可以描述为第一PDCCH中包括调度时延)，调度时延大于或者等于第一类型终端设备的切换时延，调度时延为第一类型终端设备延迟调度PDSCH的时长，切换时延为第一类型终端设备由第一BWP切换至第二BWP的时长。
可以理解的，可以预定义一切换时延A(如X个时间单元)，即终端设备由第一BWP切换至第二BWP的时长。网络设备可以根据切换时延A确定调度时延(如Y个时间单元)，以指示第一类型终端设备延迟Y个时间单元调度PDSCH。优选的，Y为大于或等于X的正整数。如此，终端设备可以在由第一BWP切换至第二BWP之后能够立即接收PDSCH，提高PDSCH的调度效率，降低设备功耗。
在一些可能的实施方式中，响应于第一类型终端由第一BWP切换至第二BWP，上述方法还可以包括：网络设备在切换时延A内停止向第一类型终端设备发送下行信息，如DCI、CSI-RS等。
进一步地，第一PDCCH中还可以携带有PDSCH的调度时延，以指示终端设备延迟Y个时间单元(即调度时延)调度PDSCH。
在一些可能的实施方式中，响应于第一类型终端设备在第二BWP接收PDSCH，上述方法还可以包括：网络设备停止在第一BWP向第一类型终端设备发送PDCCH。
可以理解的，在终端设备在第二BWP接收PDSCH过程中，第一BWP去激活，此时，网络设备停止在第一BWP上发送PDCCH。
在一些可能的实施方式中，响应于终端设备在第二BWP完成接收PDSCH，上述方法还包括：网络设备确定第一类型终端设备由第二BWP切换至第一BWP的时刻；在该时刻之后，网络设备在第一BWP向第一类型终端设备发送PDCCH。
可以理解的，为了降低设备功耗，终端设备在第二BWP完成接收PDSCH或者在完成接收PDSCH的M(M为正整数)个时间单元后，由第二BWP切换至第一BWP，并在第一BWP继续监听PDCCH。相应地，网络设备在第一类终端设备由第二BWP切换回第一BWP之后，继续向第一类型终端设备发送PDCCH。上述M个时间单元可以为预定义的或者由网络设备配置的，当然还可以通过其他方式确定，本公开实施例对此不作具体限定。
需要说明的是，对第一BWP和第二BWP的具体描述可以参见图3至图5中对第一BWP和第二 BWP的描述，在此不再赘述。另外，对于第一类型终端设备侧数据传输方法的具体描述可以参见图3至图5中对终端设备侧数据传输方法的描述。
在本公开实施例中，网络设备通过在第一BWP向第一类型终端设备发送带宽位于自身接收带宽之内的第一PDCCH，并在第二BWP上发送第一PDCCH调度的PDSCH。使得终端设备在第一BWP监听到第一PDCCH后，可以基于第一PDCCH在第二BWP接收PDSCH，如此，使得终端设备能够实现跨BWP调度PDSCH。
基于相同的发明构思，本公开实施例还提供一种通信装置，该通信装置可以为通信系统中的终端设备或者终端设备中的芯片或者片上系统，还可以为终端设备中用于实现上述各个实施例的方法的功能模块。该通信装置可以实现上述各实施例中终端设备所执行的功能，这些功能可以通过硬件执行相应的软件实现。这些硬件或软件包括一个或多个上述功能相应的模块。图7为本公开实施例中的一种通信装置的结构示意图，参见图7所示，该通信装置70包括：接收模块71，用于在第一BWP监听第一物理下行控制信道PDCCH，基于第一PDCCH在第二BWP接收物理下行共享信道PDSCH，第一PDCCH的带宽位于终端设备的接收带宽内，第一PDCCH用于调度PDSCH。
在一些可能的实施方式中，该装置还包括：处理模块72，用于基于第二BWP的配置信息解析第一PDCCH所包含的控制信息内容。
在一些可能的实施方式中，PDSCH中承载有系统消息。
在一些可能的实施方式中，第二BWP的带宽大于终端设备的接收带宽。
在一些可能的实施方式中，第二BWP与CORESET0的频域资源对应。
在一些可能的实施方式中，第一BWP的带宽小于终端设备的接收带宽。
在一些可能的实施方式中，接收模,71，还用于响应于在第一BWP监听到第一PDCCH，由第一BWP切换至第二BWP，并在第二BWP接收PDSCH。
在一些可能的实施方式中，接收模块71，还用于确定切换时延；在切换时延内停止监听下行信息。可以理解的，切换时延为终端设备由第一BWP切换至第二BWP的时长。
在一些可能的实施方式中，第一PDCCH中还承载有PDSCH的调度时延，调度时延大于或者等于切换时延。可以理解的，调度时延为终端设备延迟调度PDSCH的时长。
在一些可能的实施方式中，接收模块71，还用于响应于在第二BWP接收PDSCH，停止在第一BWP监听PDCCH。
在一些可能的实施方式中，接收模块71，还用于响应于在第二BWP完成接收PDSCH或者或完成接收PDSCH的M个时间单元后，从第二BWP切换至第一BWP，并在第一BWP继续监听PDCCH，M为正整数。
需要说明的是，接收模块71和处理模块72的具体实现过程可参考图3至图5实施例的详细描述，为了说明书的简洁，这里不再赘述。
本公开实施例中提到的接收模块71可以为接收接口、接收电路或者接收器等；处理模块72可以为一个或者多个处理器。
基于相同的发明构思，本公开实施例还提供一种通信装置，该通信装置可以为通信系统中的网络 设备或者网络设备的芯片或者片上系统，还可以为终端设备中用于实现上述各个实施例的方法的功能模块。该通信装置可以实现上述各实施例中终端设备所执行的功能，这些功能可以通过硬件执行相应的软件实现。这些硬件或软件包括一个或多个上述功能相应的模块。图8为本公开实施例中的另一种通信装置的结构示意图，参见图8所示，该通信装置80包括：配置模块81，用于为第一类型终端设备配置第一BWP和第二BWP，第一BWP用于向第一类型终端设备发送第一物理下行控制信道PDCCH，第二BWP用于向第一类型终端设备发送第一物理下行共享信道PDSCH，第一PDCCH用于调度PDSCH，第一PDCCH的带宽位于第一类型终端设备的接收带宽内。
在一些可能的实施方式中，配置模块81，还用于基于第二BWP的配置信息生成第一PDCCH所包含的控制信息内容。
在一些可能的实施方式中，上述装置80还包括：发送模块82，用于在第二BWP向第二类型终端设备发送第二PDCCH，第二PDCCH用于调度PDSCH，第二类型终端设备的能力与第一类型终端设备的能力不同。
在一些可能的实施方式中，PDSCH中承载有系统消息。
在一些可能的实施方式中，第二BWP的带宽大于第一类型终端设备的接收带宽。
在一些可能的实施方式中，第二BWP与CORESET0的频域资源对应。
在一些可能的实施方式中，第一BWP的带宽小于第一类型终端设备的接收带宽。
在一些可能的实施方式中，发送模块82，还用于指示PDSCH的调度时延，第一PDCCH中包括调度时延，调度时延大于或者等于第一类型终端设备的切换时延。
可以理解的，调度时延为第一类型终端设备延迟调度PDSCH的时长，切换时延为第一类型终端设备由第一BWP切换至第二BWP的时长。
在一些可能的实施方式中，发送模块82，还用于在切换时延内停止向第一类型终端设备发送下行信息。
在一些可能的实施方式中，发送模块82，还用于响应于第一类型终端设备在第二BWP接收PDSCH，停止在第一BWP向第一类型终端设备发送PDCCH。
在一些可能的实施方式中，发送模块82，还用于确定第一类型终端设备由第二BWP切换至第一BWP的时刻；在时刻之后，在第一BWP向第一类型终端设备发送PDCCH。
需要说明的是，配置模块81和发送模块82的具体实现过程可参考图6实施例的详细描述，为了说明书的简洁，这里不再赘述。
本公开实施例中提到的发送模块82可以为接收接口、接收电路或者接收器等；配置模块81可以为一个或者多个处理器。
根据本公开的第五方面提供一种通信设备，如终端设备，包括：天线；存储器；处理器，分别与天线及存储器连接，被配置为通执行存储在存储器上的计算机可执行指令，控制天线的收发，并能够实现如本公开第一方面及其可能的实施方式中任一项的数据传输方法。
基于相同的发明构思，本公开实施例提供一种通信设备，该通信设备可以为上述一个或者多个实施例中所述的终端设备或者网络设备。图9为本公开实施例中的一种通信设备的结构示意图，参见图 9所示，通信设备90，采用了通用的计算机硬件，包括处理器91、存储器92、总线93、输入设备94和输出设备95。
在一些可能的实施方式中，存储器92可以包括以易失性和/或非易失性存储器形式的计算机存储媒体，如只读存储器和/或随机存取存储器。存储器92可以存储操作系统、应用程序、其他程序模块、可执行代码、程序数据、用户数据等。
输入设备94可以用于向通信设备输入命令和信息，输入设备94如键盘或指向设备，如鼠标、轨迹球、触摸板、麦克风、操纵杆、游戏垫、卫星电视天线、扫描仪或类似设备。这些输入设备可以通过总线93连接至处理器91。
输出设备95可以用于通信设备输出信息，除了监视器之外，输出设备95还可以为其他外围输出设各，如扬声器和/或打印设备，这些输出设备也可以通过总线93连接到处理器91。
通信设备可以通过天线96连接到网络中，例如连接到局域网(local area network，LAN)。在联网环境下，控制备中存储的计算机执行指令可以存储在远程存储设备中，而不限于在本地存储。
当通信设备中的处理器91执行存储器92中存储的可执行代码或应用程序时，通信设备以执行以上实施例中的终端设备侧或者网络设备侧的通信方法，具体执行过程参见上述实施例，在此不再赘述。
此外，上述存储器92中存储有用于实现图7中的接收模块71和处理模块72的功能的计算机执行指令。图7中的接收模块71和处理模块72的功能/实现过程均可以通过图9中的处理器91调用存储器92中存储的计算机执行指令来实现，具体实现过程和功能参考上述相关实施例。
或者，上述存储器92中存储有用于实现图8中的配置模块81和发送模块82的功能的计算机执行指令。图8中的配置模块81和发送模块82的功能/实现过程均可以通过图9中的处理器91调用存储器92中存储的计算机执行指令来实现，具体实现过程和功能参考上述相关实施例。
基于相同的发明构思，本公开实施例提供一种终端设备，该终端设备与上述一个或者多个实施例中的终端设备一致。可选的，终端设备可以为移动电话，计算机，数字广播终端设备，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等。
图10为本公开实施例中的一种终端设备的结构示意图，参见图10所示，终端设备100可以包括以下一个或多个组件：处理组件101、存储器102、电源组件103、多媒体组件104、音频组件105、输入/输出(I/O)的接口106、传感器组件107以及通信组件108。
处理组件101通常控制终端设备100的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理组件101可以包括一个或多个处理器1011来执行指令，以完成上述的方法的全部或部分步骤。此外，处理组件101可以包括一个或多个模块，便于处理组件101和其他组件之间的交互。例如，处理组件101可以包括多媒体模块，以方便多媒体组件104和处理组件101之间的交互。
存储器102被配置为存储各种类型的数据以支持在终端设备100的操作。这些数据的示例包括用于在终端设备100上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器102可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存 储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
电源组件103为终端设备100的各种组件提供电力。电源组件103可以包括电源管理系统，一个或多个电源，及其他与为终端设备100生成、管理和分配电力相关联的组件。
多媒体组件104包括在终端设备100和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与触摸或滑动操作相关的持续时间和压力。在一些实施例中，多媒体组件104包括一个前置摄像头和/或后置摄像头。当终端设备100处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件105被配置为输出和/或输入音频信号。例如，音频组件105包括一个麦克风(MIC)，当终端设备100处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器102或经由通信组件108发送。在一些实施例中，音频组件105还包括一个扬声器，用于输出音频信号。
I/O接口106为处理组件101和外围接口模块之间提供接口，上述外围接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件107包括一个或多个传感器，用于为终端设备100提供各个方面的状态评估。例如，传感器组件107可以监听到终端设备100的打开/关闭状态，组件的相对定位，例如组件为终端设备100的显示器和小键盘，传感器组件107还可以检测终端设备100或终端设备100一个组件的位置改变，用户与终端设备100接触的存在或不存在，终端设备100方位或加速/减速和终端设备100的温度变化。传感器组件107可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件107还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件107还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。
通信组件108被配置为便于终端设备100和其他设备之间有线或无线方式的通信。终端设备100可以接入基于通信标准的无线网络，如Wi-Fi、2G、3G、4G或5G，或它们的组合。在一个示例性实施例中，通信组件108经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，通信组件108还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA)技术，超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，终端设备100可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述方法。
基于相同的发明构思，本公开实施例提供一种网络设备，该网络设备与上述一个或者多个实施例中 的网络设备一致。
图11为本公开实施例中的一种网络设备的结构示意图，参见图11所示，网络设备110可以包括处理组件111，其进一步包括一个或多个处理器，以及由存储器112所代表的存储器资源，用于存储可由处理组件111的执行的指令，例如应用程序。存储器112中存储的应用程序可以包括一个或一个以上的每一个对应于一组指令的模块。此外，处理组件111被配置为执行指令，以执行上述方法前述应用在所述网络设备的任一方法。
网络设备110还可以包括一个电源组件113被配置为执行网络设备110的电源管理，一个有线或无线网络接口114被配置为将网络设备110连接到网络，和一个输入输出(I/O)接口115。网络设备110可以操作基于存储在存储器112的操作系统，例如Windows Server TM，Mac OS XTM，UnixTM，LinuxTM，FreeBSDTM或类似。
基于相同的发明构思，本公开实施例还提供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；当指令在计算机上运行时，用于执行上述一个或者多个实施例中终端设备侧或者网络设备A侧的通信方法。
基于相同的发明构思，本公开实施例还提供一种计算机程序或计算机程序产品，当计算机程序产品在计算机上被执行时，使得计算机实现上述一个或者多个实施例中终端设备侧或者网络设备A侧的通信方法。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本发明的其它实施方案。本公开旨在涵盖本发明的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本发明的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本发明的真正范围和精神由下面的权利要求指出。
应当理解的是，本发明并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本发明的范围仅由所附的权利要求来限制。

Claims (42)

  1. 一种数据传输方法，其中，包括：
    终端设备在第一带宽部分监听第一物理下行控制信道PDCCH，基于所述第一PDCCH在第二带宽部分接收物理下行共享信道PDSCH，所述第一PDCCH的带宽位于所述终端设备的接收带宽内，所述第一PDCCH用于调度所述PDSCH。
  2. 根据权利要求1所述的方法，其中，所述方法还包括：
    响应于所述终端设备在所述第一带宽部分监听到所述第一PDCCH，所述终端设备基于所述第二带宽部分的配置信息解析所述第一PDCCH所包含的控制信息内容。
  3. 根据权利要求1所述的方法，其中，所述PDSCH中承载有系统消息。
  4. 根据权利要求1所述的方法，其中，所述第二带宽部分的带宽大于所述终端设备的接收带宽。
  5. 根据权利要求1或4所述的方法，其中，所述第二带宽部分与控制资源集合CORESET0的频域资源对应。
  6. 根据权利要求1或4所述的方法，其中，所述第一带宽部分的带宽小于所述终端设备的接收带宽。
  7. 根据权利要求1所述的方法，其中，所述方法还包括：
    响应于在所述终端设备在所述第一带宽部分监听到所述第一PDCCH，所述终端设备由所述第一带宽部分切换至所述第二带宽部分，并在所述第二带宽部分接收所述PDSCH。
  8. 根据权利要求7所述的方法，其中，所述方法还包括：
    所述终端设备确定切换时延；
    所述终端设备在所述切换时延内停止监听下行信息。
  9. 根据权利要求8所述的方法，其中，所述第一PDCCH中还承载有所述PDSCH的调度时延，所述调度时延大于或者等于所述切换时延。
  10. 根据权利要求1所述的方法，其中，所述方法还包括：
    响应于所述终端设备在所述第二带宽部分接收所述PDSCH，所述终端设备停止在所述第一宽带部分监听PDCCH。
  11. 根据权利要求1或7所述的方法，其中，所述方法还包括：
    响应于所述终端设备在所述第二带宽部分完成接收所述PDSCH或完成接收所述PDSCH的M个时间单元后，所述终端设备从所述第二带宽部分切换至所述第一带宽部分，并在所述第一带宽部分继续监听PDCCH，M为正整数。
  12. 根据权利要求1所述的方法，其中，所述终端设备为增强的能力受限eRedCap终端设备。
  13. 一种数据传输方法，其中，包括：
    网络设备为第一类型终端设备配置第一带宽部分和第二带宽部分，所述第一带宽部分用于向所述第一类型终端设备发送第一物理下行控制信道PDCCH，所述第二带宽部分用于向所述第一类型终端设备发送第一物理下行共享信道PDSCH，所述第一PDCCH用于调度所述PDSCH，所述第一PDCCH的带宽位于所述第一类型终端设备的接收带宽内。
  14. 根据权利要求13所述的方法，其中，所述方法还包括：
    所述网络设备基于所述第二带宽部分的配置信息生成所述第一PDCCH所包含的控制信息内容。
  15. 根据权利要求13所述的方法，其中，所述方法还包括：
    所述网络设备在所述第二带宽部分向第二类型终端设备发送第二PDCCH，所述第二PDCCH用于调度所述PDSCH，所述第二类型终端设备的能力与所述第一类型终端设备的能力不同。
  16. 根据权利要求13所述的方法，其中，所述PDSCH中承载有系统消息。
  17. 根据权利要求13所述的方法，其中，所述第二带宽部分的带宽大于所述第一类型终端设备的接收带宽。
  18. 根据权利要求13或17所述的方法，其中，所述第二带宽部分与控制资源集合CORESET0的频域资源对应。
  19. 根据权利要求13或17所述的方法，其中，所述第一带宽部分的带宽小于所述第一类型终端设备的接收带宽。
  20. 根据权利要求13所述的方法，其中，所述方法还包括：
    所述网络设备指示所述PDSCH的调度时延，所述第一PDCCH中包括所述调度时延，所述调度时延大于或者等于所述第一类型终端设备的切换时延。
  21. 根据权利要求20所述的方法，其中，所述方法还包括：
    所述网络设备在所述切换时延内停止向所述第一类型终端设备发送下行信息。
  22. 根据权利要求13所述的方法，其中，所述方法还包括：
    响应于所述第一类型终端设备在所述第二带宽部分接收所述PDSCH，所述网络设备停止在所述第一带宽部分向所述第一类型终端设备发送PDCCH。
  23. 根据权利要求13所述的方法，其中，所述方法还包括：
    所述网络设备确定所述第一类型终端设备由所述第二宽带部分切换至所述第一宽带部分的时刻；
    在所述时刻之后，所述网络设备在所述第一宽带部分向所述第一类型终端设备发送PDCCH。
  24. 一种通信装置，其中，包括：
    接收模块，用于在第一带宽部分监听第一物理下行控制信道PDCCH，基于所述第一PDCCH在第二带宽部分接收物理下行共享信道PDSCH，所述第一PDCCH的带宽位于所述终端设备的接收带宽内，所述第一PDCCH用于调度所述PDSCH。
  25. 根据权利要求24所述的装置，其中，所述装置还包括：处理模块，用于基于所述第二带宽部分的配置信息解析所述第一PDCCH所包含的控制信息内容。
  26. 根据权利要求24所述的装置，其中，所述第二带宽部分的带宽大于所述终端设备的接收带宽。
  27. 根据权利要求24所述的装置，其中，所述第一带宽部分的带宽小于所述终端设备的接收带宽。
  28. 根据权利要求24所述的装置，其中，所述接收模块，还用于响应于在所述第一带宽部分监听到所述第一PDCCH，由所述第一带宽部分切换至所述第二带宽部分，并在所述第二带宽部分接收所 述PDSCH。
  29. 根据权利要求24所述的装置，其中，所述接收模块，还用于确定切换时延；在所述切换时延内停止监听下行信息。
  30. 根据权利要求31所述的装置，其中，所述第一PDCCH中还承载有所述PDSCH的调度时延，所述调度时延大于或者等于所述切换时延。
  31. 根据权利要求24所述的装置，其中，所述接收模块，还用于响应于在所述第二带宽部分完成接收所述PDSCH或完成接收所述PDSCH的M个时间单元后，从所述第二带宽部分切换至所述第一带宽部分，并在所述第一带宽部分继续监听PDCCH，M为正整数。
  32. 一种通信装置，其中，包括：
    配置模块，用于为第一类型终端设备配置第一带宽部分和第二带宽部分，所述第一带宽部分用于向所述第一类型终端设备发送第一物理下行控制信道PDCCH，所述第二带宽部分用于向所述第一类型终端设备发送第一物理下行共享信道PDSCH，所述第一PDCCH用于调度所述PDSCH，所述第一PDCCH的带宽位于所述第一类型终端设备的接收带宽内。
  33. 根据权利要求32所述的装置，其中，所述配置模块，还用于基于所述第二带宽部分的配置信息生成所述第一PDCCH所包含的控制信息内容。
  34. 根据权利要求32所述的装置，其中，所述装置还包括：发送模块，用于在所述第二带宽部分向第二类型终端设备发送第二PDCCH，所述第二PDCCH用于调度所述PDSCH，所述第二类型终端设备的能力与所述第一类型终端设备的能力不同。
  35. 根据权利要求32所述的装置，其中，所述第二带宽部分的带宽大于所述第一类型终端设备的接收带宽。
  36. 根据权利要求32或35所述的装置，其中，所述第一带宽部分的带宽小于所述第一类型终端设备的接收带宽。
  37. 根据权利要求32所述的装置，其中，所述装置还包括：发送模块，用于指示所述PDSCH的调度时延，所述第一PDCCH中包括所述调度时延，所述调度时延大于或者等于所述第一类型终端设备的切换时延。
  38. 根据权利要求38所述的装置，其中，所述发送模块，用于在所述切换时延内停止向所述第一类型终端设备发送下行信息。
  39. 根据权利要32所述的装置，其中，所述发送模块，还用于响应于所述第一类型终端设备在所述第二带宽部分接收所述PDSCH，停止在所述第一带宽部分向所述第一类型终端设备发送所述
    PDCCH。
  40. 根据权利要求32所述的装置，其中，所述发送模块，还用于确定所述第一类型终端设备由所述第二带宽部分切换至所述第一带宽部分的时刻；在所述时刻之后，在所述第一带宽部分向第一类型终端设备发送PDCCH。
  41. 一种通信设备，其中，包括：
    天线；
    存储器；
    处理器，分别与所述天线及存储器连接，被配置为通执行存储在所述存储器上的计算机可执行指令，控制所述天线的收发，并能够实现如权利要求1至12或权利要求13至23任一项所述的数据传输方法。
  42. 一种计算机存储介质，其中，包括：处理模块，用于所述计算机存储介质存储有计算机可执行指令，其中，所述计算机可执行指令被处理器执行后能够实现如权利要求1至12或权利要求13至23任一项所述的数据传输方法。
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