WO2020186527A1 - 系统信息接收方法、发送方法、装置及存储介质 - Google Patents

系统信息接收方法、发送方法、装置及存储介质 Download PDF

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Publication number
WO2020186527A1
WO2020186527A1 PCT/CN2019/079126 CN2019079126W WO2020186527A1 WO 2020186527 A1 WO2020186527 A1 WO 2020186527A1 CN 2019079126 W CN2019079126 W CN 2019079126W WO 2020186527 A1 WO2020186527 A1 WO 2020186527A1
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WO
WIPO (PCT)
Prior art keywords
terminal
information
bwp
system information
base station
Prior art date
Application number
PCT/CN2019/079126
Other languages
English (en)
French (fr)
Inventor
江小威
Original Assignee
北京小米移动软件有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 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 CN201980000530.7A priority Critical patent/CN110115066B/zh
Priority to PCT/CN2019/079126 priority patent/WO2020186527A1/zh
Priority to US17/441,695 priority patent/US11997742B2/en
Publication of WO2020186527A1 publication Critical patent/WO2020186527A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

Definitions

  • the embodiments of the present disclosure relate to the field of communication technologies, and in particular, to a system information receiving method, sending method, device, and storage medium.
  • SI System information
  • MIB Master Information Block
  • SIB System Information Block, system information block
  • SIB messages include SIB 1 message, SIB 2 message, SIB 3 message, etc., among different SIB messages Contains different configuration information.
  • system information can be divided into two types.
  • the first type of system information can be called minimum SI
  • the first type of system information can include MIB messages and SIB 1 messages
  • the second type of system information can be called other SI
  • the second type of system information can include SIB 2 messages, SIBs 3 messages, etc.
  • the terminal does not need to request it, and the base station sends it to the terminal in a broadcast manner, while for the second type of system information, the terminal can only obtain it after requesting the base station.
  • BWP Bandwidth Part
  • a frequency band is divided into several BWPs, and the terminal is configured with multiple BWPs in a period of time.
  • the terminal can Transmit information on one or more active BWPs.
  • the embodiments of the present disclosure provide a system information receiving method, sending method, device, and storage medium.
  • the technical solution is as follows:
  • a method for receiving system information including:
  • the terminal sends an SI request to the base station on the first BWP, where the SI request is used to request to obtain system information;
  • the terminal receives the system information on the second BWP;
  • the terminal After successfully receiving the system information, the terminal sends first indication information to the base station, where the first indication information is used to indicate that the terminal has successfully received the system information.
  • the sending of the first indication information by the terminal to the base station includes:
  • the terminal sends RRC (Radio Resource Control, radio resource control) signaling to the base station, where the RRC signaling carries the first indication information;
  • RRC Radio Resource Control, radio resource control
  • the terminal sends a MAC (Media Access Control, Media Access Control) CE (Control Element, control element) signaling to the base station, and the MAC CE signaling carries the first indication information.
  • MAC Media Access Control, Media Access Control
  • CE Control Element, control element
  • the first handover information includes identification information of the second BWP.
  • the method further includes:
  • the terminal determines that the base station will send by broadcast The system information.
  • the method further includes:
  • the terminal After receiving the system information on the first BWP, the terminal switches from the first BWP to the second BWP.
  • the method further includes:
  • the terminal sends second indication information to the base station, where the second indication information is used to indicate that the terminal has switched to the second BWP.
  • the method further includes:
  • the terminal receives third handover information sent by the base station, where the third handover information is used to instruct the terminal to switch to a third BWP to transmit data.
  • a method for sending system information including:
  • the base station receives the SI request sent by the terminal on the first BWP, where the SI request is used to request to obtain system information;
  • the base station receives first indication information sent by the terminal, where the first indication information is used to indicate that the terminal has successfully received the system information.
  • the base station sending the first handover information to the terminal includes:
  • the base station sends PDCCH (Physical Downlink Control Channel) scheduling information for scheduling the SI response to the terminal, where the PDCCH scheduling information carries the first handover information.
  • PDCCH Physical Downlink Control Channel
  • the base station sending the system information on the second BWP in a broadcast manner includes:
  • the base station After receiving the second indication information sent by the terminal, the base station sends the system information on the second BWP in a broadcast manner, and the second indication information is used to indicate that the terminal has switched to the The second BWP.
  • the method further includes:
  • the base station sends third handover information to the terminal, where the third handover information is used to instruct the terminal to switch to a third BWP to transmit data.
  • a system information receiving device applied to a terminal including:
  • the first sending module is configured to send an SI request to the base station on the first BWP, where the SI request is used to request to obtain system information;
  • a first receiving module configured to receive first handover information sent by the base station, where the first handover information is used to instruct the terminal to switch to a second BWP to receive the system information;
  • a second receiving module configured to receive the system information on the second BWP
  • the second sending module is configured to send first indication information to the base station after successfully receiving the system information, where the first indication information is used to indicate that the terminal has successfully received the system information.
  • the second sending module is configured to send RRC signaling to the base station, where the RRC signaling carries the first indication information
  • the second sending module is configured to send MAC CE signaling to the base station, and the MAC CE signaling carries the first indication information.
  • the device further includes:
  • the third receiving module is configured to receive the SI response sent by the base station
  • the determining module is configured to determine that when the SI response does not carry the system information, or the SI response carries transmission instruction information for indicating that the system information will be sent by broadcast, determine that the base station will pass The system information is transmitted by broadcasting.
  • the device further includes:
  • the BWP switching module is configured to switch from the first BWP to the second BWP after receiving the system information on the first BWP.
  • the device further includes:
  • the third sending module is configured to send second indication information to the base station, where the second indication information is used to indicate that the terminal has switched to the second BWP.
  • the device further includes:
  • a fourth receiving module configured to receive second handover information sent by the base station, where the second handover information is used to instruct the terminal to switch to the first BWP to transmit data;
  • the fifth receiving module is configured to receive third handover information sent by the base station, where the third handover information is used to instruct the terminal to switch to a third BWP to transmit data.
  • a system information sending device applied to a base station includes:
  • the first receiving module is configured to receive the SI request sent by the terminal on the first BWP, where the SI request is used to request to obtain system information;
  • a first sending module configured to send first handover information to the terminal, where the first handover information is used to instruct the terminal to switch to a second BWP to receive the system information;
  • the second sending module is configured to send the system information on the second BWP in a broadcast manner
  • the second receiving module is configured to receive first indication information sent by the terminal, where the first indication information is used to indicate that the terminal has successfully received the system information.
  • the first sending module is configured to send an SI response to the terminal, and the SI response carries the first handover information
  • the first sending module is configured to send PDCCH scheduling information for scheduling the SI response to the terminal, and the PDCCH scheduling information carries the first handover information.
  • the second sending module is configured to, after receiving the second indication information sent by the terminal, send the system information on the second BWP in a broadcast manner, and the second indication information Used to indicate that the terminal has switched to the second BWP.
  • the device further includes:
  • a third sending module configured to send second handover information to the terminal, where the second handover information is used to instruct the terminal to switch to the first BWP to transmit data;
  • the fourth sending module is configured to send third handover information to the terminal, where the third handover information is used to instruct the terminal to switch to a third BWP to transmit data.
  • a system information receiving device applied to a terminal includes:
  • a memory for storing executable instructions of the processor
  • the processor is configured to:
  • a system information sending device applied to a base station includes:
  • a memory for storing executable instructions of the processor
  • the processor is configured to:
  • a non-transitory computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the steps of the method described in the first aspect are implemented, Or implement the steps of the method described in the second aspect.
  • the first handover information is sent to the terminal through the base station.
  • the first indication information is sent to the base station to indicate The terminal has successfully received the system information, so that the base station knows when the terminal has completed the reception of the system information, and then provides assistance for BWP scheduling during subsequent data transmission.
  • Fig. 1 is a schematic diagram showing a network architecture according to an exemplary embodiment
  • Fig. 2 is a flow chart showing a method for receiving system information according to an exemplary embodiment
  • Fig. 3 is a flowchart showing a method for receiving system information according to another exemplary embodiment
  • Fig. 4 is a block diagram showing a device for receiving system information according to an exemplary embodiment
  • Fig. 5 is a block diagram showing a device for receiving system information according to another exemplary embodiment
  • Fig. 6 is a block diagram showing a device for sending system information according to an exemplary embodiment
  • Fig. 7 is a block diagram showing a device for sending system information according to another exemplary embodiment
  • Fig. 8 is a schematic structural diagram showing a terminal according to an exemplary embodiment
  • Fig. 9 is a schematic structural diagram showing a base station according to an exemplary embodiment.
  • Fig. 1 is a schematic diagram showing a network architecture according to an exemplary embodiment.
  • the network architecture may include: a base station 110 and a terminal 120.
  • the base station 110 is deployed in the access network.
  • the access network in the 5G NR system can be called NG-RAN (New Generation-Radio Access Network).
  • the base station 110 and the terminal 120 communicate with each other through a certain air interface technology, for example, may communicate with each other through cellular technology.
  • the base station 110 is a device deployed in an access network to provide the terminal 120 with a wireless communication function.
  • the base station 110 may include various forms of macro base stations, micro base stations, relay stations, access points, and so on.
  • the names of devices with base station functions may be different. For example, in a 5G NR system, they are called gNodeB or gNB. As communication technology evolves, the name "base station" may change.
  • base stations the above-mentioned devices that provide wireless communication functions for the terminal 120 are collectively referred to as base stations.
  • the number of terminals 120 is usually multiple, and one or more terminals 120 may be distributed in a cell managed by each base station 110.
  • the terminal 120 may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to a wireless modem, as well as various forms of User Equipment (UE), mobile stations ( Mobile Station, MS), terminal device (terminal device), etc.
  • UE User Equipment
  • MS Mobile Station
  • terminal device terminal device
  • the "5G NR system" in the embodiments of the present disclosure may also be referred to as a 5G system or an NR system, but those skilled in the art can understand its meaning.
  • the technical solutions described in the embodiments of the present disclosure may be applicable to the 5G NR system, and may also be applicable to the subsequent evolution system of the 5G NR system.
  • Fig. 2 is a flow chart showing a method for receiving system information according to an exemplary embodiment. This method can be applied to the network architecture shown in Figure 1. The method can include the following steps (201-204).
  • step 201 the terminal sends an SI request to the base station on the first BWP.
  • the first BWP can be any activated BWP.
  • a carrier bandwidth can be divided into multiple BWPs, and a terminal can be configured with multiple BWPs at the same time, but the terminal can only have one active BWP on a carrier at the same time. If the terminal is configured with multiple carriers, then each carrier can have an activated BWP.
  • SI request is used to request system information.
  • the SI request carries an identifier of the system information requested to be obtained, so as to inform the base station which system information or information the terminal needs to obtain.
  • step 202 the base station sends first handover information to the terminal.
  • the base station may send the first handover information to the terminal. Used to instruct the terminal to switch to the second BWP to receive the above system information. Among them, the second BWP is different from the first BWP.
  • the first handover information includes identification information of the second BWP.
  • the identification information of the second BWP is used to uniquely indicate the second BWP, and different BWPs have different identification information.
  • the base station may send the first handover information to the terminal in the following manner:
  • the base station sends an SI response (SI response) to the terminal, and the SI response carries the first handover information.
  • SI response carries the first handover information.
  • the SI response sent by the base station to the terminal does not carry the system information requested by the terminal; if the terminal requests part of the system information in the SI request If the system information is sent in a broadcast mode, and the other part of the system information is sent in a directional mode, the SI response sent by the base station to the terminal may carry the other part of the system information and the first handover information.
  • the base station sends PDCCH scheduling information for scheduling SI responses to the terminal, where the PDCCH scheduling information carries first handover information.
  • the terminal may first send the PDCCH scheduling information for scheduling the SI response to the terminal.
  • the PDCCH scheduling information contains the time-frequency resources occupied by the SI response, so that the terminal can use the PDCCH scheduling information to Receive the SI response from the base station at the appropriate time-frequency resource location. Therefore, the first handover information may also be carried in the PDCCH scheduling information, so that the terminal can obtain the first handover information earlier.
  • the base station may also send the first handover information to the terminal through separate signaling, or the first handover information may be carried in other signaling and sent, which is not limited in the embodiment of the present disclosure. .
  • the base station sends the first handover information to the terminal on the first BWP; correspondingly, the terminal receives the first handover information sent by the base station on the first BWP.
  • the base station may carry transmission indication information in the above SI response, and the transmission indication information is used to indicate the information requested by the terminal. All or part of the system information will be sent by broadcast.
  • the base station can also implicitly indicate to the terminal that all or part of the system information requested by it will be sent by broadcast. For example, if all or part of the system information requested by the terminal is not carried in the SI response, the terminal determines All or part of the system information requested by it will be sent by broadcasting.
  • the base station in the SI response indicates that all or part of the system information requested by the terminal will be sent by broadcast through the above explicit or implicit means in the SI response, the base station does not need to send the requested system information to the terminal before Then send a SIB 1 message to the terminal to inform the terminal whether the system information requested by it is sent in a broadcast mode or a directional mode.
  • the base station does not need to send a SIB 1 message to the terminal, and by carrying a broadcast status (broadcast status) in the SIB 1 message, it indicates to the terminal whether the system information requested by it is sent in a broadcast or directed manner.
  • the base station sends the system information on the first BWP, for example, the base station sends the system information on the first BWP in a broadcast mode, the base station does not need to send the first handover information to the terminal. If the terminal does not receive the first handover information sent by the base station, it does not need to handover the BWP. Alternatively, the base station sends BWP retention information to the terminal. The BWP retention information is used to indicate to keep the currently active BWP unchanged. If the terminal receives the BWP retention information sent by the base station, the terminal does not switch the BWP and still receives the system on the first BWP information.
  • step 203 the base station sends system information on the second BWP in a broadcast manner.
  • the base station After sending the first handover information to the terminal, the base station sends the system information requested by the terminal on the second BWP in a broadcast manner. Correspondingly, the terminal receives the system information on the second BWP.
  • the terminal since the terminal has learned through the SI response that the base station will send system information to the terminal by broadcast, the terminal does not need to obtain the SIB 1 message to know its requested acquisition before receiving the system information on the second BWP Is the system message sent by broadcast or directed.
  • step 204 after successfully receiving the system information, the terminal sends first indication information to the base station, where the first indication information is used to indicate that the terminal has successfully received the system information.
  • the terminal after successfully receiving the system information, the terminal sends the first indication information to the base station to inform the base station that the terminal has successfully received the system information, so that the base station can learn what the terminal is on the second BWP.
  • the system information is received.
  • the terminal may send the first indication information to the base station in the following manner: In a possible implementation manner, the terminal sends RRC signaling to the base station, and the RRC signaling carries the first indication information; in another possible implementation In this manner, the terminal sends MAC CE signaling to the base station, and the MAC CE signaling carries the first indication information.
  • the base station may also send the first indication information to the terminal through dedicated signaling, or may carry the first indication information in other signaling for transmission, which is not limited in the embodiment of the present disclosure. .
  • the base station when the system information requested by the terminal is not sent on the first BWP currently activated, but on the second BWP, the base station sends the first BWP to the terminal.
  • the handover information is used to instruct the terminal to switch to the second BWP to receive the above system information, ensuring the success rate of the terminal receiving system information in the BWP scenario; in addition, the terminal sends the first indication information to the base station after successfully receiving the system information In this way, it indicates that the terminal has successfully received the system information, so that the base station can learn when the terminal has completed the reception of the system information, and then provide assistance for BWP scheduling during subsequent data transmission.
  • Fig. 3 is a flow chart showing a method for receiving system information according to another exemplary embodiment. This method can be applied to the network architecture shown in Figure 1. The method can include the following steps (301-307).
  • step 301 the terminal sends an SI request to the base station on the first BWP.
  • the SI request is used to request system information.
  • the SI request is used to request to obtain the SIB 2 message, and the SI request may carry the SIB 2 message identifier.
  • step 302 the base station sends first handover information to the terminal.
  • the first switching information is used to instruct the terminal to switch to the second BWP to receive the above system information.
  • the first handover information includes identification information of the second BWP.
  • the first handover information includes the identification information of this second BWP; if the system information requested by the terminal is sent on multiple second BWPs, then The first handover information includes identification information of each of the multiple second BWPs, where the multiple second BWPs are multiple different BWPs.
  • the first handover information may also include a mapping relationship between the identification information of the second BWP and the identification of the system information, and the mapping relationship The terminal indicates which system information is received on which BWP, so that the terminal accurately receives the system information.
  • step 303 the terminal switches from the first BWP to the second BWP.
  • the terminal After receiving the first handover information sent by the base station, the terminal switches from the first BWP to the second BWP, that is, the second BWP is used as the activated BWP.
  • the terminal will switch from the first BWP to the second BWP after receiving the system information on the first BWP to ensure the first BWP The system information on the system was received completely and successfully.
  • step 304 the terminal sends second indication information to the base station.
  • the second indication information is used to indicate that the terminal has switched to the second BWP.
  • the second indication information may be sent in an explicit manner or in an implicit manner. For example, after the terminal switches to the second BWP, it sends a message to the base station on the second BWP, such as random access request, RRC signaling, MAC CE signaling or uplink data, to indicate that the terminal has switched to the second BWP.
  • a message to the base station on the second BWP, such as random access request, RRC signaling, MAC CE signaling or uplink data, to indicate that the terminal has switched to the second BWP.
  • Two BWP Two BWP.
  • step 305 after receiving the second indication information, the base station sends system information on the second BWP in a broadcast manner.
  • the base station After confirming that the terminal has switched to the second BWP, the base station sends system information on the second BWP in a broadcast manner, so as to ensure that the terminal can successfully receive the system information requested by the terminal on the second BWP.
  • step 306 after successfully receiving the system information, the terminal sends first indication information to the base station, where the first indication information is used to indicate that the terminal has successfully received the system information.
  • the terminal may send the first indication information to the base station through RRC signaling or MAC CE signaling.
  • step 307 the base station sends the second handover information or the third handover information to the terminal.
  • the base station After confirming that the terminal has successfully received the system information, the base station can determine whether the terminal still transmits data on the second BWP or switches to another BWP to transmit data according to actual conditions.
  • the base station sends second handover information to the terminal, where the second handover information is used to instruct the terminal to switch to the first BWP to transmit data.
  • the second handover information includes identification information of the first BWP.
  • the base station sends third handover information to the terminal, where the third handover information is used to instruct the terminal to switch to the third BWP to transmit data.
  • the third handover information includes the identification information of the third BWP, and the third BWP It is another BWP different from the second BWP and the first BWP.
  • the base station may not send information to the terminal after receiving the first indication information, or send BWP retention information to the terminal, and the BWP retention information is used to indicate to keep current
  • the activated BWP remains unchanged; accordingly, if the terminal does not receive the information sent by the base station within the preset time period after sending the first indication information, or receives the BWP holding information from the base station, the terminal is still in the second BWP ⁇ Transfer data.
  • the base station when the system information requested by the terminal is not sent on the first BWP currently activated, but on the second BWP, the base station sends the first BWP to the terminal.
  • the handover information is used to instruct the terminal to switch to the second BWP to receive the above system information, ensuring the success rate of the terminal receiving system information in the BWP scenario; in addition, the terminal sends the first indication information to the base station after successfully receiving the system information In this way, it indicates that the terminal has successfully received the system information, so that the base station can learn when the terminal has completed the reception of the system information, and then provide assistance for BWP scheduling during subsequent data transmission.
  • the terminal after the terminal has switched to the second BWP, it also sends second indication information to the base station to inform the base station that the terminal has switched to the second BWP.
  • the system information is sent on the second BWP to ensure that the terminal can successfully receive the system information requested by the terminal on the second BWP.
  • the base station decides whether the terminal still transmits data on the second BWP or switches to other BWPs to transmit data according to the actual situation, so as to realize the selection of the appropriate BWP to transmit service data according to service requirements , Improve system performance.
  • the technical solution of the present disclosure is introduced and explained only from the perspective of the interaction between the terminal and the base station.
  • the above-mentioned steps performed on the terminal side can be individually implemented as a method for receiving system information on the terminal side.
  • the above-mentioned steps performed by the base station side can be individually implemented as a method for sending system information on the base station side.
  • Fig. 4 is a block diagram showing a device for receiving system information according to an exemplary embodiment.
  • the device has the function of realizing the above-mentioned terminal-side method example, and the function can be realized by hardware, or by hardware executing corresponding software.
  • the device can be the terminal described above, or it can be set in the terminal.
  • the device 400 may include: a first sending module 410, a first receiving module 420, a second receiving module 430, and a second sending module 440.
  • the first sending module 410 is configured to send an SI request to the base station on the first BWP, where the SI request is used to request to obtain system information.
  • the first receiving module 420 is configured to receive first handover information sent by the base station, where the first handover information is used to instruct the terminal to switch to a second BWP to receive the system information.
  • the second receiving module 430 is configured to receive the system information on the second BWP.
  • the second sending module 440 is configured to send first indication information to the base station after successfully receiving the system information, where the first indication information is used to indicate that the terminal has successfully received the system information.
  • the base station when the system information requested by the terminal is not sent on the first BWP currently activated, but on the second BWP, the base station sends the first BWP to the terminal.
  • the handover information is used to instruct the terminal to switch to the second BWP to receive the above system information, ensuring the success rate of the terminal receiving system information in the BWP scenario; in addition, the terminal sends the first indication information to the base station after successfully receiving the system information In this way, it indicates that the terminal has successfully received the system information, so that the base station can learn when the terminal has completed the reception of the system information, and then provide assistance for BWP scheduling during subsequent data transmission.
  • the second sending module 440 is configured to send RRC signaling to the base station, and the RRC signaling carries the first indication information.
  • the second sending module 440 is configured to send MAC CE signaling to the base station, and the MAC CE signaling carries the first indication information.
  • the device further includes: a third receiving module 450 and a determining module 460.
  • the third receiving module 450 is configured to receive the SI response sent by the base station.
  • the determining module 460 is configured to determine that when the SI response does not carry the system information, or the SI response carries transmission indication information for indicating that the system information will be sent by broadcasting, determine that the base station will The system information is sent by broadcasting.
  • the apparatus further includes: a BWP switching module 470.
  • the BWP switching module 470 is configured to switch from the first BWP to the second BWP after receiving the system information on the first BWP.
  • the device further includes: a third sending module 480.
  • the third sending module 480 is configured to send second indication information to the base station, where the second indication information is used to indicate that the terminal has switched to the second BWP.
  • the apparatus further includes: a fourth receiving module 490 and/or a fifth receiving module 492.
  • the fourth receiving module 490 is configured to receive second handover information sent by the base station, where the second handover information is used to instruct the terminal to switch to the first BWP to transmit data.
  • the fifth receiving module 492 is configured to receive third handover information sent by the base station, where the third handover information is used to instruct the terminal to switch to a third BWP to transmit data.
  • Fig. 6 is a block diagram showing a device for sending system information according to an exemplary embodiment.
  • the device has the function of realizing the above example of the method on the base station side, and the function can be realized by hardware, or by hardware executing corresponding software.
  • the device can be the base station described above, or it can be set in the base station.
  • the device 600 may include: a first receiving module 610, a first sending module 620, a second sending module 630, and a second receiving module 640.
  • the first receiving module 610 is configured to receive an SI request sent by the terminal on the first BWP, where the SI request is used to request to obtain system information.
  • the first sending module 620 is configured to send first handover information to the terminal, where the first handover information is used to instruct the terminal to switch to the second BWP to receive the system information.
  • the second sending module 630 is configured to send the system information on the second BWP in a broadcast manner.
  • the second receiving module 640 is configured to receive first indication information sent by the terminal, where the first indication information is used to indicate that the terminal has successfully received the system information.
  • the base station when the system information requested by the terminal is not sent on the first BWP currently activated, but on the second BWP, the base station sends the first BWP to the terminal.
  • the handover information is used to instruct the terminal to switch to the second BWP to receive the above system information, ensuring the success rate of the terminal receiving system information in the BWP scenario; in addition, the terminal sends the first indication information to the base station after successfully receiving the system information In this way, it indicates that the terminal has successfully received the system information, so that the base station can learn when the terminal has completed the reception of the system information, and then provide assistance for BWP scheduling during subsequent data transmission.
  • the first sending module 620 is configured to send an SI response to the terminal, and the SI response carries the first handover information.
  • the first sending module 620 is configured to send PDCCH scheduling information for scheduling the SI response to the terminal, where the PDCCH scheduling information carries the first handover information.
  • the second sending module 630 is configured to send the system information on the second BWP in a broadcast manner after receiving the second indication information sent by the terminal, the The second indication information is used to indicate that the terminal has switched to the second BWP.
  • the apparatus further includes: a third sending module 650 and/or a fourth sending module 660.
  • the third sending module 650 is configured to send second handover information to the terminal, where the second handover information is used to instruct the terminal to switch to the first BWP to transmit data.
  • the fourth sending module 660 is configured to send third handover information to the terminal, where the third handover information is used to instruct the terminal to switch to a third BWP to transmit data.
  • the device provided in the above embodiment realizes its functions, only the division of the above functional modules is used for illustration. In actual applications, the above functions can be allocated by different functional modules according to actual needs. That is, the content structure of the device is divided into different functional modules to complete all or part of the functions described above.
  • An exemplary embodiment of the present disclosure also provides a system information receiving device, which can be applied to the terminal introduced above and can implement the system information receiving method provided by the present disclosure.
  • the device may include a processor, and a memory for storing executable instructions of the processor.
  • the processor is configured as:
  • the processor is configured to:
  • the first handover information includes identification information of the second BWP.
  • the processor is further configured to:
  • the SI response does not carry the system information, or the SI response carries transmission instruction information for indicating that the system information will be sent by broadcast, it is determined that the base station will send the system by broadcast information.
  • the processor is further configured to:
  • the processor is further configured to:
  • the processor is further configured to:
  • An exemplary embodiment of the present disclosure also provides a system information sending device, which can be applied to the base station introduced above and can implement the system information sending method provided in the present disclosure.
  • the device may include a processor, and a memory for storing executable instructions of the processor.
  • the processor is configured as:
  • the processor is configured to:
  • the PDCCH scheduling information used to schedule the SI response is sent to the terminal, where the PDCCH scheduling information carries the first handover information.
  • the processor is configured to:
  • the terminal After receiving the second indication information sent by the terminal, send the system information on the second BWP in a broadcast manner, where the second indication information is used to indicate that the terminal has switched to the second BWP .
  • the processor is further configured to:
  • the terminal and the base station include hardware structures and/or software modules corresponding to each function.
  • the embodiments of the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Those skilled in the art can use different methods for each specific application to implement the described functions, but such implementation should not be considered as going beyond the scope of the technical solutions of the embodiments of the present disclosure.
  • Fig. 8 is a schematic structural diagram of a terminal according to an exemplary embodiment.
  • the terminal 800 includes a transmitter 801, a receiver 802 and a processor 803.
  • the processor 803 may also be a controller, which is represented as "controller/processor 803" in FIG. 8.
  • the terminal 800 may further include a modem processor 805, where the modem processor 805 may include an encoder 806, a modulator 807, a decoder 808, and a demodulator 809.
  • the transmitter 801 adjusts (eg, analog conversion, filtering, amplification, and upconversion, etc.) the output samples and generates an uplink signal, which is transmitted to the base station via an antenna.
  • the antenna receives the downlink signal transmitted by the base station.
  • the receiver 802 conditions (eg, filters, amplifies, down-converts, and digitizes, etc.) the signal received from the antenna and provides input samples.
  • the encoder 806 receives service data and signaling messages to be transmitted on the uplink, and processes the service data and signaling messages (for example, formatting, encoding, and interleaving).
  • the modulator 807 further processes (eg, symbol mapping and modulation) the encoded service data and signaling messages and provides output samples.
  • the demodulator 809 processes (e.g., demodulates) the input samples and provides symbol estimates.
  • the decoder 808 processes (e.g., deinterleaves and decodes) the symbol estimates and provides decoded data and signaling messages sent to the terminal 800.
  • the encoder 806, the modulator 807, the demodulator 809, and the decoder 808 may be implemented by a synthesized modem processor 805. These units are processed according to the radio access technology adopted by the radio access network (for example, 5G NR and access technologies of other evolved systems). It should be noted that when the terminal 800 does not include the modem processor 805, the foregoing functions of the modem processor 805 may also be performed by the processor 803.
  • the processor 803 controls and manages the actions of the terminal 800, and is configured to execute the processing procedure performed by the terminal 800 in the foregoing embodiment of the present disclosure.
  • the processor 803 is further configured to execute each step on the terminal side in the foregoing method embodiment, and/or other steps of the technical solution described in the embodiment of the present disclosure.
  • the terminal 800 may further include a memory 804, and the memory 804 is configured to store program codes and data for the terminal 800.
  • FIG. 8 only shows a simplified design of the terminal 800.
  • the terminal 800 may include any number of transmitters, receivers, processors, modem processors, memories, etc., and all terminals that can implement the embodiments of the present disclosure are within the protection scope of the embodiments of the present disclosure. Inside.
  • Fig. 9 is a schematic structural diagram showing a base station according to an exemplary embodiment.
  • the base station 900 includes a transmitter/receiver 901 and a processor 902.
  • the processor 902 may also be a controller, which is represented as "controller/processor 902" in FIG. 9.
  • the transmitter/receiver 901 is used to support the sending and receiving of information between the base station and the terminal in the foregoing embodiment, and to support communication between the base station and other network entities.
  • the processor 902 performs various functions for communicating with the terminal.
  • the uplink signal from the terminal is received via an antenna, demodulated by the receiver 901 (for example, demodulating a high-frequency signal into a baseband signal), and further processed by the processor 902 to restore the terminal Send to service data and signaling information.
  • service data and signaling messages are processed by the processor 902, and modulated by the transmitter 901 (for example, the baseband signal is modulated into a high-frequency signal) to generate a downlink signal, which is transmitted to the terminal via an antenna .
  • the processor 902 is further configured to execute each step on the base station side in the foregoing method embodiment, and/or other steps of the technical solution described in the embodiment of the present disclosure.
  • the base station 900 may further include a memory 903, and the memory 903 is used to store program codes and data of the base station 900.
  • the base station may also include a communication unit 904.
  • the communication unit 904 is used to support the base station to communicate with other network entities (for example, network devices in the core network, etc.).
  • the communication unit 904 may be an NG-U interface to support communication between the base station and UPF (User Plane Function) entities; or, the communication unit 904 may also be an NG-C The interface is used to support access to AMF (Access and Mobility Management Function) entities for communication.
  • AMF Access and Mobility Management Function
  • FIG. 9 only shows a simplified design of the base station 900.
  • the base station 900 may include any number of transmitters, receivers, processors, controllers, memories, communication units, etc., and all base stations that can implement the embodiments of the present disclosure are within the protection scope of the embodiments of the present disclosure.
  • the embodiments of the present disclosure also provide a non-transitory computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor of a terminal, the foregoing method for receiving system information on the terminal side is implemented.
  • the embodiments of the present disclosure also provide a non-transitory computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor of a base station, the method for sending system information on the base station side is implemented.
  • the non-transitory computer-readable storage medium may be ROM (Read-Only Memory), RAM (Random Access Memory), CD-ROM, magnetic tape, floppy disk and optical data storage Equipment etc.

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Abstract

本公开是关于一种系统信息接收方法、发送方法、装置及存储介质，属于通信技术领域。所述方法包括：终端在第一BWP上向基站发送SI请求；基站向终端发送第一切换信息；基站采用广播方式在第二BWP上发送系统信息；在成功接收系统信息之后，终端向基站发送第一指示信息，该第一指示信息用于指示终端已成功接收系统信息。本公开实施例一方面确保了BWP场景下终端接收系统信息的成功率，另一方面使得基站获知终端是何时完成系统信息的接收的，进而为后续数据传输时的BWP调度提供帮助。

Description

系统信息接收方法、发送方法、装置及存储介质 技术领域
本公开实施例涉及通信技术领域，特别涉及一种系统信息接收方法、发送方法、装置及存储介质。
背景技术
系统信息(system information，SI)是基站用于向终端告知小区配置的信息，以便终端获知基站对应的小区是如何配置的，从而在该小区的覆盖范围内正确的工作。系统信息包括MIB(Master Information Block，主信息块)消息和SIB(System Information Block，系统信息块)消息，其中，SIB消息包括SIB 1消息、SIB 2消息、SIB 3消息等，不同的SIB消息中包含不同的配置信息。
在5G NR(New Radio，新空口)系统中，系统信息可分为两类。第一类系统信息可以称为minimum SI，该第一类系统信息可以包括MIB消息和SIB 1消息；第二类系统信息可以称为other SI，该第二类系统信息可以包括SIB 2消息、SIB 3消息，等等。对于第一类系统信息，终端无需请求，基站通过广播方式发送给终端，而对于第二类系统信息，终端需要向基站请求后才能获取。
另外，在5G NR系统中，引入了BWP(Bandwidth Part，带宽部分)的概念，即对于一个终端而言，一个频带被划分成若干个BWP，终端在一个时段内被配置多个BWP，终端可以在一个或多个激活的(active)BWP上传输信息。
针对BWP场景，终端和基站间如何收发系统信息，是亟待解决的问题。
发明内容
本公开实施例提供了一种系统信息接收方法、发送方法、装置及存储介质。所述技术方案如下：
根据本公开实施例的第一方面，提供了一种系统信息接收方法，所述方法包括：
终端在第一BWP上向基站发送SI请求，所述SI请求用于请求获取系统信息；
所述终端接收所述基站发送的第一切换信息，所述第一切换信息用于指示所述终端切换至第二BWP接收所述系统信息；
所述终端在所述第二BWP上接收所述系统信息；
在成功接收所述系统信息之后，所述终端向所述基站发送第一指示信息，所述第一指示信息用于指示所述终端已成功接收所述系统信息。
可选地，所述终端向所述基站发送第一指示信息，包括：
所述终端向所述基站发送RRC(Radio Resource Control，无线资源控制)信令，所述RRC信令中携带所述第一指示信息；
或者，
所述终端向所述基站发送MAC(Media Access Control，媒体接入控制)CE(Control Element，控制单元)信令，所述MAC CE信令中携带所述第一指示信息。
可选地，所述第一切换信息包括所述第二BWP的标识信息。
可选地，所述方法还包括：
所述终端接收所述基站发送的SI响应；
若所述SI响应中未携带所述系统信息，或所述SI响应中携带用于指示所述系统信息将通过广播方式发送的传输指示信息，则所述终端确定所述基站将通过广播方式发送所述系统信息。
可选地，所述方法还包括：
所述终端在接收完成所述第一BWP上的系统信息之后，从所述第一BWP切换到所述第二BWP。
可选地，所述方法还包括：
所述终端向所述基站发送第二指示信息，所述第二指示信息用于指示所述终端已切换至所述第二BWP。
可选地，所述方法还包括：
所述终端接收所述基站发送的第二切换信息，所述第二切换信息用于指示所述终端切换至所述第一BWP传输数据；
或者，
所述终端接收所述基站发送的第三切换信息，所述第三切换信息用于指示所述终端切换至第三BWP传输数据。
根据本公开实施例的第二方面，提供了一种系统信息发送方法，所述方法 包括：
基站接收终端在第一BWP上发送的SI请求，所述SI请求用于请求获取系统信息；
所述基站向所述终端发送第一切换信息，所述第一切换信息用于指示所述终端切换至第二BWP接收所述系统信息；
所述基站采用广播方式在所述第二BWP上发送所述系统信息；
所述基站接收所述终端发送的第一指示信息，所述第一指示信息用于指示所述终端已成功接收所述系统信息。
可选地，所述基站向所述终端发送第一切换信息，包括：
所述基站向所述终端发送SI响应，所述SI响应中携带所述第一切换信息；
或者，
所述基站向所述终端发送用于调度所述SI响应的PDCCH(Physical Downlink Control Channel，物理下行控制信道)调度信息，所述PDCCH调度信息中携带所述第一切换信息。
可选地，所述基站采用广播方式在所述第二BWP上发送所述系统信息，包括：
所述基站在接收到所述终端发送的第二指示信息之后，采用广播方式在所述第二BWP上发送所述系统信息，所述第二指示信息用于指示所述终端已切换至所述第二BWP。
可选地，所述方法还包括：
所述基站向所述终端发送第二切换信息，所述第二切换信息用于指示所述终端切换至所述第一BWP传输数据；
或者，
所述基站向所述终端发送第三切换信息，所述第三切换信息用于指示所述终端切换至第三BWP传输数据。
根据本公开实施例的第三方面，提供了一种系统信息接收装置，应用于终端中，所述装置包括：
第一发送模块，被配置为在第一BWP上向基站发送SI请求，所述SI请求用于请求获取系统信息；
第一接收模块，被配置为接收所述基站发送的第一切换信息，所述第一切换信息用于指示所述终端切换至第二BWP接收所述系统信息；
第二接收模块，被配置为在所述第二BWP上接收所述系统信息；
第二发送模块，被配置为在成功接收所述系统信息之后，向所述基站发送第一指示信息，所述第一指示信息用于指示所述终端已成功接收所述系统信息。
可选地，所述第二发送模块，被配置为向所述基站发送RRC信令，所述RRC信令中携带所述第一指示信息；
或者，
所述第二发送模块，被配置为向所述基站发送MAC CE信令，所述MAC CE信令中携带所述第一指示信息。
可选地，所述装置还包括：
第三接收模块，被配置为接收所述基站发送的SI响应；
确定模块，被配置为当所述SI响应中未携带所述系统信息，或所述SI响应中携带用于指示所述系统信息将通过广播方式发送的传输指示信息时，确定所述基站将通过广播方式发送所述系统信息。
可选地，所述装置还包括：
BWP切换模块，被配置为在接收完成所述第一BWP上的系统信息之后，从所述第一BWP切换到所述第二BWP。
可选地，所述装置还包括：
第三发送模块，被配置为向所述基站发送第二指示信息，所述第二指示信息用于指示所述终端已切换至所述第二BWP。
可选地，所述装置还包括：
第四接收模块，被配置为接收所述基站发送的第二切换信息，所述第二切换信息用于指示所述终端切换至所述第一BWP传输数据；
或者，
第五接收模块，被配置为接收所述基站发送的第三切换信息，所述第三切换信息用于指示所述终端切换至第三BWP传输数据。
根据本公开实施例的第四方面，提供了一种系统信息发送装置，应用于基站中，所述装置包括：
第一接收模块，被配置为接收终端在第一BWP上发送的SI请求，所述SI请求用于请求获取系统信息；
第一发送模块，被配置为向所述终端发送第一切换信息，所述第一切换信息用于指示所述终端切换至第二BWP接收所述系统信息；
第二发送模块，被配置为采用广播方式在所述第二BWP上发送所述系统信息；
第二接收模块，被配置为接收所述终端发送的第一指示信息，所述第一指示信息用于指示所述终端已成功接收所述系统信息。
可选地，所述第一发送模块，被配置为向所述终端发送SI响应，所述SI响应中携带所述第一切换信息；
或者，
所述第一发送模块，被配置为向所述终端发送用于调度所述SI响应的PDCCH调度信息，所述PDCCH调度信息中携带所述第一切换信息。
可选地，所述第二发送模块，被配置为在接收到所述终端发送的第二指示信息之后，采用广播方式在所述第二BWP上发送所述系统信息，所述第二指示信息用于指示所述终端已切换至所述第二BWP。
可选地，所述装置还包括：
第三发送模块，被配置为向所述终端发送第二切换信息，所述第二切换信息用于指示所述终端切换至所述第一BWP传输数据；
或者，
第四发送模块，被配置为向所述终端发送第三切换信息，所述第三切换信息用于指示所述终端切换至第三BWP传输数据。
根据本公开实施例的第五方面，提供了一种系统信息接收装置，应用于终端中，所述装置包括：
处理器；
用于存储所述处理器的可执行指令的存储器；
其中，所述处理器被配置为：
在第一BWP上向基站发送SI请求，所述SI请求用于请求获取系统信息；
接收所述基站发送的第一切换信息，所述第一切换信息用于指示所述终端切换至第二BWP接收所述系统信息；
在所述第二BWP上接收所述系统信息；
在成功接收所述系统信息之后，向所述基站发送第一指示信息，所述第一指示信息用于指示所述终端已成功接收所述系统信息。
根据本公开实施例的第六方面，提供了一种系统信息发送装置，应用于基站中，所述装置包括：
处理器；
用于存储所述处理器的可执行指令的存储器；
其中，所述处理器被配置为：
接收终端在第一BWP上发送的SI请求，所述SI请求用于请求获取系统信息；
向所述终端发送第一切换信息，所述第一切换信息用于指示所述终端切换至第二BWP接收所述系统信息；
采用广播方式在所述第二BWP上发送所述系统信息；
接收所述终端发送的第一指示信息，所述第一指示信息用于指示所述终端已成功接收所述系统信息。
根据本公开实施例的第七方面，提供了一种非临时性计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现如第一方面所述方法的步骤，或者实现如第二方面所述方法的步骤。
本公开实施例提供的技术方案可以包括以下有益效果：
本公开实施例提供的技术方案中，当终端请求获取的系统信息并非在当前激活的第一BWP上发送，而是在第二BWP上发送时，通过基站向终端发送第一切换信息，以此来指示终端切换至第二BWP接收上述系统信息，确保了BWP场景下终端接收系统信息的成功率；另外，还通过终端在成功接收系统信息之后，向基站发送第一指示信息，以此来指示该终端已成功接收系统信息，以便于基站获知终端是何时完成系统信息的接收的，进而为后续数据传输时的BWP调度提供帮助。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。
图1是根据一示例性实施例示出的一种网络架构的示意图；
图2是根据一示例性实施例示出的一种系统信息接收方法的流程图；
图3是根据另一示例性实施例示出的一种系统信息接收方法的流程图；
图4是根据一示例性实施例示出的一种系统信息接收装置的框图；
图5是根据另一示例性实施例示出的一种系统信息接收装置的框图；
图6是根据一示例性实施例示出的一种系统信息发送装置的框图；
图7是根据另一示例性实施例示出的一种系统信息发送装置的框图；
图8是根据一示例性实施例示出的一种终端的结构示意图；
图9是根据一示例性实施例示出的一种基站的结构示意图。
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、本公开的一些方面相一致的装置和方法的例子。
本公开实施例描述的网络架构以及业务场景是为了更加清楚地说明本公开实施例的技术方案，并不构成对本公开实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本公开实施例提供的技术方案对于类似的技术问题，同样适用。
图1是根据一示例性实施例示出的一种网络架构的示意图。该网络架构可以包括：基站110和终端120。
基站110部署在接入网中。5G NR系统中的接入网可以称为NG-RAN(New Generation-Radio Access Network，新一代无线接入网)。基站110与终端120之间通过某种空口技术互相通信，例如可以通过蜂窝技术相互通信。
基站110是一种部署在接入网中用以为终端120提供无线通信功能的装置。基站110可以包括各种形式的宏基站，微基站，中继站，接入点等等。在采用不同的无线接入技术的系统中，具备基站功能的设备的名称可能会有所不同，例如在5G NR系统中，称为gNodeB或者gNB。随着通信技术的演进，“基站”这一名称可能会变化。为方便描述，本公开实施例中，上述为终端120提供无线通信功能的装置统称为基站。
终端120的数量通常为多个，每一个基站110所管理的小区内可以分布一个或多个终端120。终端120可以包括各种具有无线通信功能的手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其它处理设备，以及 各种形式的用户设备(User Equipment，UE)，移动台(Mobile Station，MS)，终端设备(terminal device)等等。为方便描述，本公开实施例中，上面提到的设备统称为终端。
本公开实施例中的“5G NR系统”也可以称为5G系统或者NR系统，但本领域技术人员可以理解其含义。本公开实施例描述的技术方案可以适用于5G NR系统，也可以适用于5G NR系统后续的演进系统。
图2是根据一示例性实施例示出的一种系统信息接收方法的流程图。该方法可应用于图1所示的网络架构中。该方法可以包括如下几个步骤(201～204)。
在步骤201中，终端在第一BWP上向基站发送SI请求。
第一BWP可以是任意一个激活的BWP。在NR系统中，可以将一个载波带宽划分为多个BWP，一个终端可以被同时配置多个BWP，但终端同一时刻在一个载波上只能有一个激活的BWP。如果终端被配置了多个载波，那么每个载波上都可以有一个激活的BWP。
SI请求(SI request)用于请求获取系统信息。可选地，SI请求中携带请求获取的系统信息的标识，以此告知基站该终端需要获取哪个或哪些系统信息。
在步骤202中，基站向终端发送第一切换信息。
对于终端请求获取的系统信息，如果基站并不是在第一BWP上发送该系统信息，而是在第二BWP上发送该系统信息，则基站可以向终端发送第一切换信息，该第一切换信息用于指示终端切换至第二BWP接收上述系统信息。其中，第二BWP不同于第一BWP。
可选地，第一切换信息包括第二BWP的标识信息。第二BWP的标识信息用于唯一指示该第二BWP，不同的BWP具有不同的标识信息。
另外，基站可以通过如下方式向终端发送第一切换信息：
在一种可能的实施方式中，基站向终端发送SI响应(SI response)，该SI响应中携带第一切换信息。另外，如果终端在SI请求中请求获取的全部系统信息通过广播方式发送，则基站向终端发送的SI响应中不携带终端请求获取的系统信息；如果终端在SI请求中请求获取的一部分系统信息通过广播方式发送，另一部分系统信息通过定向方式发送，则基站向终端发送的SI响应中可以携带该另一部分系统信息，同时携带第一切换信息。
在另一种可能的实施方式中，基站向终端发送用于调度SI响应的PDCCH 调度信息，该PDCCH调度信息中携带第一切换信息。终端在向终端发送SI响应之前，可以先向终端发送用于调度该SI响应的PDCCH调度信息，例如该PDCCH调度信息中包含该SI响应所占用的时频资源，以便终端根据该PDCCH调度信息在合适的时频资源位置处接收基站发来的SI响应。因此，第一切换信息也可以携带在PDCCH调度信息中，以便终端更早的获取到该第一切换信息。
当然，在一些其它可能的实施方式中，基站还可以通过单独的信令向终端发送第一切换信息，也可以将第一切换信息携带在其它信令中发送，本公开实施例对此不作限定。
可选地，基站在第一BWP上向终端发送第一切换信息；相应地，终端在第一BWP上接收基站发送的第一切换信息。
另外，如果终端请求获取的全部或部分系统信息，需要通过广播方式发送，而非通过定向方式发送，则基站可以在上述SI响应中携带传输指示信息，该传输指示信息用于指示终端请求获取的全部或部分系统信息将通过广播方式发送。或者，基站也可以通过隐性的方式向终端指示其请求获取的全部或部分系统信息将通过广播方式发送，例如如果终端请求获取的全部或部分系统信息并未携带在SI响应中，则终端确定其请求获取的全部或部分系统信息将通过广播方式发送。另外，如果基站在SI响应中通过上述显性或隐性的方式，指示了终端请求获取的全部或部分系统信息将通过广播方式发送，则基站在向终端发送其请求获取的系统信息之前，无需再通过向终端发送SIB 1消息来告知终端其请求获取的系统信息是通过广播方式还是定向方式发送。例如，基站无需向终端发送SIB 1消息，通过在该SIB 1消息中携带广播状态(broadcast status)来向终端指示其所请求获取的系统信息是通过广播方式还是定向方式发送。通过上述方式，有助于节省信令开销。
另外，对于终端请求获取的系统信息，如果基站在第一BWP上发送该系统信息，如基站采用广播方式在第一BWP上发送该系统信息，则基站可不必向终端发送第一切换信息。如果终端没有接收到基站发送的第一切换信息，则不必切换BWP。或者，基站向终端发送BWP保持信息，该BWP保持信息用于指示保持当前激活的BWP不变，如果终端接收到基站发送的BWP保持信息，则终端不切换BWP，仍然在第一BWP上接收系统信息。
在步骤203中，基站采用广播方式在第二BWP上发送系统信息。
基站在向终端发送第一切换信息之后，采用广播方式在第二BWP上发送终 端请求获取的系统信息。相应地，终端在第二BWP上接收该系统信息。
需要说明的一点是，由于终端已经通过SI响应获知了基站将通过广播方式向终端发送系统信息，因此终端在第二BWP上接收系统信息之前，不需要通过获取SIB 1消息来获知其所请求获取的系统消息是通过广播方式还是定向方式下发。
在步骤204中，在成功接收系统信息之后，终端向基站发送第一指示信息，该第一指示信息用于指示终端已成功接收系统信息。
在本公开实施例中，终端在成功接收系统信息之后，通过向基站发送第一指示信息，以此来告知基站该终端已成功接收该系统信息，以便基站能够获知终端在第二BWP上是何时完成系统信息的接收的。
另外，终端可以通过如下方式向基站发送第一指示信息：在一种可能的实施方式中，终端向基站发送RRC信令，该RRC信令中携带第一指示信息；在另一种可能的实施方式中，终端向基站发送MAC CE信令，该MAC CE信令中携带第一指示信息。当然，在一些其它可能的实施方式中，基站还可以通过专用的信令向终端发送第一指示信息，也可以将第一指示信息携带在其它信令中发送，本公开实施例对此不作限定。
综上所述，本公开实施例提供的技术方案中，当终端请求获取的系统信息并非在当前激活的第一BWP上发送，而是在第二BWP上发送时，通过基站向终端发送第一切换信息，以此来指示终端切换至第二BWP接收上述系统信息，确保了BWP场景下终端接收系统信息的成功率；另外，还通过终端在成功接收系统信息之后，向基站发送第一指示信息，以此来指示该终端已成功接收系统信息，以便于基站获知终端是何时完成系统信息的接收的，进而为后续数据传输时的BWP调度提供帮助。
图3是根据另一示例性实施例示出的一种系统信息接收方法的流程图。该方法可应用于图1所示的网络架构中。该方法可以包括如下几个步骤(301～307)。
在步骤301中，终端在第一BWP上向基站发送SI请求。
SI请求用于请求获取系统信息。例如，SI请求用于请求获取SIB 2消息，则该SI请求中可以携带SIB 2消息的标识。
在步骤302中，基站向终端发送第一切换信息。
第一切换信息用于指示终端切换至第二BWP接收上述系统信息。可选地， 第一切换信息包括第二BWP的标识信息。
另外，如果终端请求获取的系统信息在一个第二BWP上发送，则第一切换信息中包括这一个第二BWP的标识信息；如果终端请求获取的系统信息在多个第二BWP上发送，则第一切换信息中包括该多个第二BWP各自的标识信息，其中，该多个第二BWP是多个不同的BWP。可选地，如果终端请求获取的系统信息在多个第二BWP上发送，第一切换信息中还可以包括第二BWP的标识信息与系统信息的标识之间的映射关系，通过该映射关系向终端指示哪个系统信息在哪个BWP上接收，使得终端准确地接收系统信息。
在步骤303中，终端从第一BWP切换到第二BWP。
终端在接收到基站发送的第一切换信息之后，从第一BWP切换到第二BWP，也即将第二BWP作为激活的BWP。
可选地，如果终端在第一BWP上还有系统信息没有完成接收，则终端在接收完成第一BWP上的系统信息之后，再从第一BWP切换到第二BWP，以此确保第一BWP上的系统信息被完整且成功地接收。
在步骤304中，终端向基站发送第二指示信息。
第二指示信息用于指示终端已切换至第二BWP。该第二指示信息可以采用显性的方式发送，也可以采用隐性的方式发送。例如，终端在切换到第二BWP之后，在该第二BWP上向基站发送一信息，如随机接入请求、RRC信令、MAC CE信令或上行数据，以此来指示终端已切换至第二BWP。
在步骤305中，基站在接收到第二指示信息之后，采用广播方式在第二BWP上发送系统信息。
基站在确认终端已切换至第二BWP之后，采用广播方式在第二BWP上发送系统信息，从而确保终端能够在第二BWP上成功接收到其请求的系统信息。
在步骤306中，在成功接收系统信息之后，终端向基站发送第一指示信息，该第一指示信息用于指示终端已成功接收系统信息。
例如，终端可以通过RRC信令或MAC CE信令向基站发送第一指示信息。
在步骤307中，基站向终端发送第二切换信息或第三切换信息。
基站在确认终端已成功接收系统信息之后，可以根据实际情况，决定终端仍然在该第二BWP上传输数据，还是切换到其它BWP上传输数据。
可选地，基站向终端发送第二切换信息，该第二切换信息用于指示终端切换至第一BWP传输数据，可选地，该第二切换信息中包括第一BWP的标识信 息。或者，基站向终端发送第三切换信息，该第三切换信息用于指示终端切换至第三BWP传输数据，可选地，该第三切换信息中包括第三BWP的标识信息，该第三BWP是不同于第二BWP和第一BWP的另一BWP。
当然，如果基站决定终端仍然在第二BWP上传输数据，则基站可以在接收到第一指示信息之后，不向终端发送信息，或者向终端发送BWP保持信息，该BWP保持信息用于指示保持当前激活的BWP不变；相应地，如果终端在发送第一指示信息之后的预设时长内未接收到基站发来的信息，或者接收到基站发来的BWP保持信息，则终端仍然在第二BWP上传输数据。
综上所述，本公开实施例提供的技术方案中，当终端请求获取的系统信息并非在当前激活的第一BWP上发送，而是在第二BWP上发送时，通过基站向终端发送第一切换信息，以此来指示终端切换至第二BWP接收上述系统信息，确保了BWP场景下终端接收系统信息的成功率；另外，还通过终端在成功接收系统信息之后，向基站发送第一指示信息，以此来指示该终端已成功接收系统信息，以便于基站获知终端是何时完成系统信息的接收的，进而为后续数据传输时的BWP调度提供帮助。
另外，终端在切换到第二BWP之后，还通过向基站发送第二指示信息，以此来告知基站该终端已切换至第二BWP，基站在确认终端已切换至第二BWP之后，再在该第二BWP上发送系统信息，确保终端能够在第二BWP上成功接收到其请求的系统信息。
另外，基站在确认终端已成功接收系统信息之后，根据实际情况，决定终端仍然在该第二BWP上传输数据，还是切换到其它BWP上传输数据，实现了根据业务需求选择合适的BWP传输业务数据，提升系统性能。
需要说明的一点是，在上述方法实施例中，仅从终端和基站交互的角度，对本公开技术方案进行了介绍说明，上述有关终端侧执行的步骤，可以单独实现成为终端侧的系统信息接收方法，上述有关基站侧执行的步骤，可以单独实现成为基站侧的系统信息发送方法。
下述为本公开装置实施例，可以用于执行本公开方法实施例。对于本公开装置实施例中未披露的细节，请参照本公开方法实施例。
图4是根据一示例性实施例示出的一种系统信息接收装置的框图。该装置 具有实现上述终端侧方法示例的功能，所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该装置可以是上文介绍的终端，也可以设置在终端中。如图4所示，该装置400可以包括：第一发送模块410、第一接收模块420、第二接收模块430和第二发送模块440。
第一发送模块410，被配置为在第一BWP上向基站发送SI请求，所述SI请求用于请求获取系统信息。
第一接收模块420，被配置为接收所述基站发送的第一切换信息，所述第一切换信息用于指示所述终端切换至第二BWP接收所述系统信息。
第二接收模块430，被配置为在所述第二BWP上接收所述系统信息。
第二发送模块440，被配置为在成功接收所述系统信息之后，向所述基站发送第一指示信息，所述第一指示信息用于指示所述终端已成功接收所述系统信息。
综上所述，本公开实施例提供的技术方案中，当终端请求获取的系统信息并非在当前激活的第一BWP上发送，而是在第二BWP上发送时，通过基站向终端发送第一切换信息，以此来指示终端切换至第二BWP接收上述系统信息，确保了BWP场景下终端接收系统信息的成功率；另外，还通过终端在成功接收系统信息之后，向基站发送第一指示信息，以此来指示该终端已成功接收系统信息，以便于基站获知终端是何时完成系统信息的接收的，进而为后续数据传输时的BWP调度提供帮助。
在示例性实施例中，所述第二发送模块440，被配置为向所述基站发送RRC信令，所述RRC信令中携带所述第一指示信息。或者，所述第二发送模块440，被配置为向所述基站发送MAC CE信令，所述MAC CE信令中携带所述第一指示信息。
在示例性实施例中，如图5所示，所述装置还包括：第三接收模块450和确定模块460。
第三接收模块450，被配置为接收所述基站发送的SI响应。
确定模块460，被配置为当所述SI响应中未携带所述系统信息，或所述SI响应中携带用于指示所述系统信息将通过广播方式发送的传输指示信息时，确定所述基站将通过广播方式发送所述系统信息。
在示例性实施例中，如图5所示，所述装置还包括：BWP切换模块470。
BWP切换模块470，被配置为在接收完成所述第一BWP上的系统信息之后， 从所述第一BWP切换到所述第二BWP。
在示例性实施例中，如图5所示，所述装置还包括：第三发送模块480。
第三发送模块480，被配置为向所述基站发送第二指示信息，所述第二指示信息用于指示所述终端已切换至所述第二BWP。
在示例性实施例中，如图5所示，所述装置还包括：第四接收模块490和/或第五接收模块492。
第四接收模块490，被配置为接收所述基站发送的第二切换信息，所述第二切换信息用于指示所述终端切换至所述第一BWP传输数据。
第五接收模块492，被配置为接收所述基站发送的第三切换信息，所述第三切换信息用于指示所述终端切换至第三BWP传输数据。
图6是根据一示例性实施例示出的一种系统信息发送装置的框图。该装置具有实现上述基站侧方法示例的功能，所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该装置可以是上文介绍的基站，也可以设置在基站中。如图6所示，该装置600可以包括：第一接收模块610、第一发送模块620、第二发送模块630和第二接收模块640。
第一接收模块610，被配置为接收终端在第一BWP上发送的SI请求，所述SI请求用于请求获取系统信息。
第一发送模块620，被配置为向所述终端发送第一切换信息，所述第一切换信息用于指示所述终端切换至第二BWP接收所述系统信息。
第二发送模块630，被配置为采用广播方式在所述第二BWP上发送所述系统信息。
第二接收模块640，被配置为接收所述终端发送的第一指示信息，所述第一指示信息用于指示所述终端已成功接收所述系统信息。
综上所述，本公开实施例提供的技术方案中，当终端请求获取的系统信息并非在当前激活的第一BWP上发送，而是在第二BWP上发送时，通过基站向终端发送第一切换信息，以此来指示终端切换至第二BWP接收上述系统信息，确保了BWP场景下终端接收系统信息的成功率；另外，还通过终端在成功接收系统信息之后，向基站发送第一指示信息，以此来指示该终端已成功接收系统信息，以便于基站获知终端是何时完成系统信息的接收的，进而为后续数据传输时的BWP调度提供帮助。
在示例性实施例中，所述第一发送模块620，被配置为向所述终端发送SI响应，所述SI响应中携带所述第一切换信息。或者，所述第一发送模块620，被配置为向所述终端发送用于调度所述SI响应的PDCCH调度信息，所述PDCCH调度信息中携带所述第一切换信息。
在示例性实施例中，所述第二发送模块630，被配置为在接收到所述终端发送的第二指示信息之后，采用广播方式在所述第二BWP上发送所述系统信息，所述第二指示信息用于指示所述终端已切换至所述第二BWP。
在示例性实施例中，如图7所示，所述装置还包括：第三发送模块650和/或第四发送模块660。
第三发送模块650，被配置为向所述终端发送第二切换信息，所述第二切换信息用于指示所述终端切换至所述第一BWP传输数据。
第四发送模块660，被配置为向所述终端发送第三切换信息，所述第三切换信息用于指示所述终端切换至第三BWP传输数据。
需要说明的一点是，上述实施例提供的装置在实现其功能时，仅以上述各个功能模块的划分进行举例说明，实际应用中，可以根据实际需要而将上述功能分配由不同的功能模块完成，即将设备的内容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。
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
本公开一示例性实施例还提供了一种系统信息接收装置，该装置可应用于上文介绍的终端中，能够实现本公开提供的系统信息接收方法。该装置可以包括：处理器，以及用于存储处理器的可执行指令的存储器。其中，处理器被配置为：
在第一BWP上向基站发送SI请求，所述SI请求用于请求获取系统信息；
接收所述基站发送的第一切换信息，所述第一切换信息用于指示所述终端切换至第二BWP接收所述系统信息；
在所述第二BWP上接收所述系统信息；
在成功接收所述系统信息之后，向所述基站发送第一指示信息，所述第一指示信息用于指示所述终端已成功接收所述系统信息。
在示例性实施例中，所述处理器被配置为：
向所述基站发送RRC信令，所述RRC信令中携带所述第一指示信息；
或者，
向所述基站发送MAC CE信令，所述MAC CE信令中携带所述第一指示信息。
在示例性实施例中，所述第一切换信息包括所述第二BWP的标识信息。
在示例性实施例中，所述处理器还被配置为：
接收所述基站发送的SI响应；
当所述SI响应中未携带所述系统信息，或所述SI响应中携带用于指示所述系统信息将通过广播方式发送的传输指示信息时，确定所述基站将通过广播方式发送所述系统信息。
在示例性实施例中，所述处理器还被配置为：
在接收完成所述第一BWP上的系统信息之后，从所述第一BWP切换到所述第二BWP。
在示例性实施例中，所述处理器还被配置为：
向所述基站发送第二指示信息，所述第二指示信息用于指示所述终端已切换至所述第二BWP。
在示例性实施例中，所述处理器还被配置为：
接收所述基站发送的第二切换信息，所述第二切换信息用于指示所述终端切换至所述第一BWP传输数据；
或者，
接收所述基站发送的第三切换信息，所述第三切换信息用于指示所述终端切换至第三BWP传输数据。
本公开一示例性实施例还提供了一种系统信息发送装置，该装置可应用于上文介绍的基站中，能够实现本公开提供的系统信息发送方法。该装置可以包括：处理器，以及用于存储处理器的可执行指令的存储器。其中，处理器被配置为：
接收终端在第一BWP上发送的SI请求，所述SI请求用于请求获取系统信息；
向所述终端发送第一切换信息，所述第一切换信息用于指示所述终端切换 至第二BWP接收所述系统信息；
采用广播方式在所述第二BWP上发送所述系统信息；
接收所述终端发送的第一指示信息，所述第一指示信息用于指示所述终端已成功接收所述系统信息。
在示例性实施例中，所述处理器被配置为：
向所述终端发送SI响应，所述SI响应中携带所述第一切换信息；
或者，
向所述终端发送用于调度所述SI响应的PDCCH调度信息，所述PDCCH调度信息中携带所述第一切换信息。
在示例性实施例中，所述处理器被配置为：
在接收到所述终端发送的第二指示信息之后，采用广播方式在所述第二BWP上发送所述系统信息，所述第二指示信息用于指示所述终端已切换至所述第二BWP。
在示例性实施例中，所述处理器还被配置为：
向所述终端发送第二切换信息，所述第二切换信息用于指示所述终端切换至所述第一BWP传输数据；
或者，
向所述终端发送第三切换信息，所述第三切换信息用于指示所述终端切换至第三BWP传输数据。
上述主要从终端和基站的角度，对本公开实施例提供的方案进行了介绍。可以理解的是，终端和基站为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。结合本公开中所公开的实施例描述的各示例的单元及算法步骤，本公开实施例能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。本领域技术人员可以对每个特定的应用来使用不同的方法来实现所描述的功能，但是这种实现不应认为超出本公开实施例的技术方案的范围。
图8是根据一示例性实施例示出的一种终端的结构示意图。
所述终端800包括发射器801，接收器802和处理器803。其中，处理器803 也可以为控制器，图8中表示为“控制器/处理器803”。可选的，所述终端800还可以包括调制解调处理器805，其中，调制解调处理器805可以包括编码器806、调制器807、解码器808和解调器809。
在一个示例中，发射器801调节(例如，模拟转换、滤波、放大和上变频等)该输出采样并生成上行链路信号，该上行链路信号经由天线发射给基站。在下行链路上，天线接收基站发射的下行链路信号。接收器802调节(例如，滤波、放大、下变频以及数字化等)从天线接收的信号并提供输入采样。在调制解调处理器805中，编码器806接收要在上行链路上发送的业务数据和信令消息，并对业务数据和信令消息进行处理(例如，格式化、编码和交织)。调制器807进一步处理(例如，符号映射和调制)编码后的业务数据和信令消息并提供输出采样。解调器809处理(例如，解调)该输入采样并提供符号估计。解码器808处理(例如，解交织和解码)该符号估计并提供发送给终端800的已解码的数据和信令消息。编码器806、调制器807、解调器809和解码器808可以由合成的调制解调处理器805来实现。这些单元根据无线接入网采用的无线接入技术(例如，5G NR及其他演进系统的接入技术)来进行处理。需要说明的是，当终端800不包括调制解调处理器805时，调制解调处理器805的上述功能也可以由处理器803完成。
处理器803对终端800的动作进行控制管理，用于执行上述本公开实施例中由终端800进行的处理过程。例如，处理器803还用于执行上述方法实施例中的终端侧的各个步骤，和/或本公开实施例所描述的技术方案的其它步骤。
进一步的，终端800还可以包括存储器804，存储器804用于存储用于终端800的程序代码和数据。
可以理解的是，图8仅仅示出了终端800的简化设计。在实际应用中，终端800可以包含任意数量的发射器，接收器，处理器，调制解调处理器，存储器等，而所有可以实现本公开实施例的终端都在本公开实施例的保护范围之内。
图9是根据一示例性实施例示出的一种基站的结构示意图。
基站900包括发射器/接收器901和处理器902。其中，处理器902也可以为控制器，图9中表示为“控制器/处理器902”。所述发射器/接收器901用于支持基站与上述实施例中的所述终端之间收发信息，以及支持所述基站与其它网络实体之间进行通信。所述处理器902执行各种用于与终端通信的功能。在上 行链路，来自所述终端的上行链路信号经由天线接收，由接收器901进行解调(例如将高频信号解调为基带信号)，并进一步由处理器902进行处理来恢复终端所发送到业务数据和信令信息。在下行链路上，业务数据和信令消息由处理器902进行处理，并由发射器901进行调制(例如将基带信号调制为高频信号)来产生下行链路信号，并经由天线发射给终端。需要说明的是，上述解调或调制的功能也可以由处理器902完成。例如，处理器902还用于执行上述方法实施例中基站侧的各个步骤，和/或本公开实施例所描述的技术方案的其它步骤。
进一步的，基站900还可以包括存储器903，存储器903用于存储基站900的程序代码和数据。此外，基站还可以包括通信单元904。通信单元904用于支持基站与其它网络实体(例如核心网中的网络设备等)进行通信。例如，在5G NR系统中，该通信单元904可以是NG-U接口，用于支持基站与UPF(User Plane Function，用户平面功能)实体进行通信；或者，该通信单元904也可以是NG-C接口，用于支持接入AMF(Access and Mobility Management Function接入和移动性管理功能)实体进行通信。
可以理解的是，图9仅仅示出了基站900的简化设计。在实际应用中，基站900可以包含任意数量的发射器，接收器，处理器，控制器，存储器，通信单元等，而所有可以实现本公开实施例的基站都在本公开实施例的保护范围之内。
本公开实施例还提供了一种非临时性计算机可读存储介质，其上存储有计算机程序，所述计算机程序被终端的处理器执行时实现上述终端侧的系统信息接收方法。
本公开实施例还提供了一种非临时性计算机可读存储介质，其上存储有计算机程序，所述计算机程序被基站的处理器执行时实现上述基站侧的系统信息发送方法。
可选地，所述非临时性计算机可读存储介质可以是ROM(Read-Only Memory，只读存储器)、RAM(Random Access Memory，随机存取存储器)、CD-ROM、磁带、软盘和光数据存储设备等。
应当理解的是，在本文中提及的“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示： 单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本公开旨在涵盖本公开的任何变型、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公开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，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开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。本公开的范围仅由所附的权利要求来限制。

Claims (24)

  1. 一种系统信息接收方法，其特征在于，所述方法包括：
    终端在第一带宽部分BWP上向基站发送系统信息SI请求，所述SI请求用于请求获取系统信息；
    所述终端接收所述基站发送的第一切换信息，所述第一切换信息用于指示所述终端切换至第二BWP接收所述系统信息；
    所述终端在所述第二BWP上接收所述系统信息；
    在成功接收所述系统信息之后，所述终端向所述基站发送第一指示信息，所述第一指示信息用于指示所述终端已成功接收所述系统信息。
  2. 根据权利要求1所述的方法，其特征在于，所述终端向所述基站发送第一指示信息，包括：
    所述终端向所述基站发送无线资源控制RRC信令，所述RRC信令中携带所述第一指示信息；
    或者，
    所述终端向所述基站发送媒体接入控制MAC控制单元CE信令，所述MAC CE信令中携带所述第一指示信息。
  3. 根据权利要求1所述的方法，其特征在于，所述第一切换信息包括所述第二BWP的标识信息。
  4. 根据权利要求1至3任一项所述的方法，其特征在于，所述方法还包括：
    所述终端接收所述基站发送的SI响应；
    若所述SI响应中未携带所述系统信息，或所述SI响应中携带用于指示所述系统信息将通过广播方式发送的传输指示信息，则所述终端确定所述基站将通过广播方式发送所述系统信息。
  5. 根据权利要求1至3任一项所述的方法，其特征在于，所述方法还包括：
    所述终端在接收完成所述第一BWP上的系统信息之后，从所述第一BWP切换到所述第二BWP。
  6. 根据权利要求1至3任一项所述的方法，其特征在于，所述方法还包括：
    所述终端向所述基站发送第二指示信息，所述第二指示信息用于指示所述终端已切换至所述第二BWP。
  7. 根据权利要求1至3任一项所述的方法，其特征在于，所述方法还包括：
    所述终端接收所述基站发送的第二切换信息，所述第二切换信息用于指示所述终端切换至所述第一BWP传输数据；
    或者，
    所述终端接收所述基站发送的第三切换信息，所述第三切换信息用于指示所述终端切换至第三BWP传输数据。
  8. 一种系统信息发送方法，其特征在于，所述方法包括：
    基站接收终端在第一带宽部分BWP上发送的系统信息SI请求，所述SI请求用于请求获取系统信息；
    所述基站向所述终端发送第一切换信息，所述第一切换信息用于指示所述终端切换至第二BWP接收所述系统信息；
    所述基站采用广播方式在所述第二BWP上发送所述系统信息；
    所述基站接收所述终端发送的第一指示信息，所述第一指示信息用于指示所述终端已成功接收所述系统信息。
  9. 根据权利要求8所述的方法，其特征在于，所述基站向所述终端发送第一切换信息，包括：
    所述基站向所述终端发送SI响应，所述SI响应中携带所述第一切换信息；
    或者，
    所述基站向所述终端发送用于调度所述SI响应的物理下行控制信道PDCCH调度信息，所述PDCCH调度信息中携带所述第一切换信息。
  10. 根据权利要求8所述的方法，其特征在于，所述基站采用广播方式在所述第二BWP上发送所述系统信息，包括：
    所述基站在接收到所述终端发送的第二指示信息之后，采用广播方式在所述第二BWP上发送所述系统信息，所述第二指示信息用于指示所述终端已切换至所述第二BWP。
  11. 根据权利要求8至10任一项所述的方法，其特征在于，所述方法还包括：
    所述基站向所述终端发送第二切换信息，所述第二切换信息用于指示所述终端切换至所述第一BWP传输数据；
    或者，
    所述基站向所述终端发送第三切换信息，所述第三切换信息用于指示所述终端切换至第三BWP传输数据。
  12. 一种系统信息接收装置，其特征在于，应用于终端中，所述装置包括：
    第一发送模块，被配置为在第一带宽部分BWP上向基站发送系统信息SI请求，所述SI请求用于请求获取系统信息；
    第一接收模块，被配置为接收所述基站发送的第一切换信息，所述第一切换信息用于指示所述终端切换至第二BWP接收所述系统信息；
    第二接收模块，被配置为在所述第二BWP上接收所述系统信息；
    第二发送模块，被配置为在成功接收所述系统信息之后，向所述基站发送第一指示信息，所述第一指示信息用于指示所述终端已成功接收所述系统信息。
  13. 根据权利要求12所述的装置，其特征在于，
    所述第二发送模块，被配置为向所述基站发送无线资源控制RRC信令，所述RRC信令中携带所述第一指示信息；
    或者，
    所述第二发送模块，被配置为向所述基站发送媒体接入控制MAC控制单元CE信令，所述MAC CE信令中携带所述第一指示信息。
  14. 根据权利要求12或13所述的装置，其特征在于，所述装置还包括：
    第三接收模块，被配置为接收所述基站发送的SI响应；
    确定模块，被配置为当所述SI响应中未携带所述系统信息，或所述SI响应中携带用于指示所述系统信息将通过广播方式发送的传输指示信息时，确定所述基站将通过广播方式发送所述系统信息。
  15. 根据权利要求12或13所述的装置，其特征在于，所述装置还包括：
    BWP切换模块，被配置为在接收完成所述第一BWP上的系统信息之后，从所述第一BWP切换到所述第二BWP。
  16. 根据权利要求12或13所述的装置，其特征在于，所述装置还包括：
    第三发送模块，被配置为向所述基站发送第二指示信息，所述第二指示信息用于指示所述终端已切换至所述第二BWP。
  17. 根据权利要求12或13所述的装置，其特征在于，所述装置还包括：
    第四接收模块，被配置为接收所述基站发送的第二切换信息，所述第二切换信息用于指示所述终端切换至所述第一BWP传输数据；
    或者，
    第五接收模块，被配置为接收所述基站发送的第三切换信息，所述第三切换信息用于指示所述终端切换至第三BWP传输数据。
  18. 一种系统信息发送装置，其特征在于，应用于基站中，所述装置包括：
    第一接收模块，被配置为接收终端在第一带宽部分BWP上发送的系统信息SI请求，所述SI请求用于请求获取系统信息；
    第一发送模块，被配置为向所述终端发送第一切换信息，所述第一切换信息用于指示所述终端切换至第二BWP接收所述系统信息；
    第二发送模块，被配置为采用广播方式在所述第二BWP上发送所述系统信息；
    第二接收模块，被配置为接收所述终端发送的第一指示信息，所述第一指示信息用于指示所述终端已成功接收所述系统信息。
  19. 根据权利要求18所述的装置，其特征在于，
    所述第一发送模块，被配置为向所述终端发送SI响应，所述SI响应中携带所述第一切换信息；
    或者，
    所述第一发送模块，被配置为向所述终端发送用于调度所述SI响应的物理下行控制信道PDCCH调度信息，所述PDCCH调度信息中携带所述第一切换信息。
  20. 根据权利要求18所述的装置，其特征在于，
    所述第二发送模块，被配置为在接收到所述终端发送的第二指示信息之后，采用广播方式在所述第二BWP上发送所述系统信息，所述第二指示信息用于指示所述终端已切换至所述第二BWP。
  21. 根据权利要求18至20任一项所述的装置，其特征在于，所述装置还包括：
    第三发送模块，被配置为向所述终端发送第二切换信息，所述第二切换信息用于指示所述终端切换至所述第一BWP传输数据；
    或者，
    第四发送模块，被配置为向所述终端发送第三切换信息，所述第三切换信息用于指示所述终端切换至第三BWP传输数据。
  22. 一种系统信息接收装置，其特征在于，应用于终端中，所述装置包括：
    处理器；
    用于存储所述处理器的可执行指令的存储器；
    其中，所述处理器被配置为：
    在第一带宽部分BWP上向基站发送系统信息SI请求，所述SI请求用于请求获取系统信息；
    接收所述基站发送的第一切换信息，所述第一切换信息用于指示所述终端切换至第二BWP接收所述系统信息；
    在所述第二BWP上接收所述系统信息；
    在成功接收所述系统信息之后，向所述基站发送第一指示信息，所述第一 指示信息用于指示所述终端已成功接收所述系统信息。
  23. 一种系统信息发送装置，其特征在于，应用于基站中，所述装置包括：
    处理器；
    用于存储所述处理器的可执行指令的存储器；
    其中，所述处理器被配置为：
    接收终端在第一带宽部分BWP上发送的系统信息SI请求，所述SI请求用于请求获取系统信息；
    向所述终端发送第一切换信息，所述第一切换信息用于指示所述终端切换至第二BWP接收所述系统信息；
    采用广播方式在所述第二BWP上发送所述系统信息；
    接收所述终端发送的第一指示信息，所述第一指示信息用于指示所述终端已成功接收所述系统信息。
  24. 一种非临时性计算机可读存储介质，其上存储有计算机程序，其特征在于，所述计算机程序被处理器执行时实现如权利要求1至7任一项所述方法的步骤，或者实现如权利要求8至11任一项所述方法的步骤。
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