WO2021027473A1 - 一种bwp组切换方法、基站及终端 - Google Patents
一种bwp组切换方法、基站及终端 Download PDFInfo
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- WO2021027473A1 WO2021027473A1 PCT/CN2020/102063 CN2020102063W WO2021027473A1 WO 2021027473 A1 WO2021027473 A1 WO 2021027473A1 CN 2020102063 W CN2020102063 W CN 2020102063W WO 2021027473 A1 WO2021027473 A1 WO 2021027473A1
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- bwp
- target
- group
- bwp group
- uplink
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- 238000000034 method Methods 0.000 title claims abstract description 62
- 238000013468 resource allocation Methods 0.000 claims description 65
- 230000005540 biological transmission Effects 0.000 claims description 22
- 238000004590 computer program Methods 0.000 claims description 9
- 238000004891 communication Methods 0.000 description 21
- 230000011664 signaling Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18513—Transmission in a satellite or space-based system
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
- H04B7/18539—Arrangements for managing radio, resources, i.e. for establishing or releasing a connection
- H04B7/18541—Arrangements for managing radio, resources, i.e. for establishing or releasing a connection for handover of resources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/204—Multiple access
- H04B7/2041—Spot beam multiple access
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
Definitions
- This application relates to the field of communication technology, and in particular to a BWP group handover method, base station and terminal.
- one beam corresponds to one cell.
- a satellite has four beams, each occupying a bandwidth of 400MHz, the four beams occupying a total bandwidth of 1.6GHz, and the four beams correspond to different cells.
- an important difference between satellite communications and terrestrial communications is that satellites move at high speeds, which in turn leads to more frequent cell switching. For example, even if the terminal is stationary in the satellite, at this time, due to the movement of the satellite, the terminal may also perform cell handover in seconds.
- cell handover is triggered by high-level signaling.
- the network side uses high-level signaling to trigger the terminal to perform cell handover.
- the terminal parses the high-level signaling and performs handover according to the instructions of the network side. Send a handover complete message.
- each beam corresponds to a cell.
- the handover between terminal cells requires high-level radio resource control (Radio Resource Control). ) Signaling is realized, which will lead to a long time delay for cell handover, and because the handover of satellite communication is very frequent, the time proportion of the communication interruption due to the excessive handover delay is too large.
- Radio Resource Control Radio Resource Control
- the embodiments of the present application provide a BWP group handover method, base station, and terminal, so as to implement handover between cells in a satellite communication system with a small handover delay.
- an embodiment of the present application provides a BWP group switching method, and the BWP group switching method includes:
- the base station pre-configures at least two BWP groups for the terminal, and each BWP group includes at least one uplink BWP and at least one downlink BWP; the target BWP group is obtained by the base station from the at least two BWP groups.
- an embodiment of the present application provides a BWP handover method, and the BWP handover method includes:
- the base station pre-configures at least two BWP groups for the terminal, each BWP group includes at least one uplink BWP and at least one downlink BWP, and the target BWP group is one of the at least two BWP groups.
- an embodiment of the present application provides a BWP group switching device, and the BWP group switching device includes:
- the sending module is configured to send a bandwidth part BWP group switching message to the terminal, and the BWP group switching message carries indication information of the target BWP group;
- the base station pre-configures at least two BWP groups for the terminal, and each BWP group includes at least one uplink BWP and at least one downlink BWP; the target BWP group is obtained by the base station from the at least two BWP groups.
- an embodiment of the present application provides a BWP group switching device, and the BWP group switching device includes:
- a receiving module configured to receive a bandwidth part BWP group switching message sent by a base station, where the BWP group switching message carries indication information of the target BWP group;
- the switching module is configured to switch the terminal from the current BWP group to the target BWP group according to the indication information of the target BWP group; wherein,
- the base station pre-configures at least two BWP groups for the terminal, each BWP group includes at least one uplink BWP and at least one downlink BWP, and the target BWP group is one of the at least two BWP groups.
- an embodiment of the present application provides a base station, including a memory, a processor, and a program stored in the memory and capable of running on the processor.
- the processor executes the program, the above-mentioned first aspect is implemented. Steps of the BWP group switching method.
- an embodiment of the present application provides a terminal including a memory, a processor, and a program stored in the memory and capable of running on the processor.
- the processor implements the above-mentioned second aspect when the program is executed. Steps of the BWP group switching method.
- an embodiment of the present application provides 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 BWP group switching method are implemented.
- the BWP group switching method, base station, and terminal provided by the embodiments of the present application send a BWP group switching message to the terminal, and the BWP group switching message carries the indication information of the target BWP group, so that the terminal can according to the indication information of the target BWP group, Obtain the target BWP group from the pre-configured BWP group, and then be able to switch to the target BWP group, so that the handover between the cells can be realized through the handover of the BWP group, which is compared with the realization of the cell in the satellite communication system through high-level signaling
- the method of handover between the cells shortens the time delay of the cell handover.
- FIG. 1 is one of the steps of the method for switching the BWP group in an embodiment of the application
- Fig. 2 is the second flow chart of the steps of the BWP group switching method in the embodiment of this application;
- FIG. 3 is a schematic diagram of the configuration of the BWP group in an embodiment of the application.
- FIG. 4 is one of the block diagrams of the BWP group switching device in an embodiment of the application.
- FIG. 5 is the second block diagram of the BWP group switching device in an embodiment of this application.
- Fig. 6 is a schematic structural diagram of a base station or terminal in an embodiment of the application.
- the New Radio supports the network side to configure up to 4 downlink bandwidth parts (BandWidth Part, BWP) and 4 uplink BWPs in a cell for the terminal.
- BWP downlink bandwidth parts
- NR also supports BWP handover based on Downlink Control Information (DCI), that is, the network side sends DCI, which carries the BWP number and the physical downlink shared channel (PDSCH) in the BWP or Physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) resource allocation.
- DCI Downlink Control Information
- PDSCH physical downlink shared channel
- PUSCH Physical Uplink shared channel
- the present application may configure a BWP group for the cell in advance, and then implement cell handover, that is, beam handover, through the handover of the BWP group, thereby realizing beam handover with a shorter delay.
- the BWP group switching method includes:
- Step 101 Send a bandwidth part BWP group switching message to the terminal.
- the BWP group switching message carries indication information of the target BWP group.
- the base station pre-configures at least two BWP groups for the terminal, and each BWP group includes at least one uplink BWP and at least one downlink BWP. Based on the fact that each BWP group includes at least one uplink BWP and at least one downlink BWP, the terminal can implement uplink and downlink data transmission in each BWP group.
- the target BWP group is obtained by the base station selecting from at least two BWP groups. This enables when the base station sends a BWP group switching message to the terminal, based on the target BWP group for the base station to select from at least two pre-configured BWP groups, the terminal can according to the indication information of the target BWP group carried in the BWP group switching message , Obtain the target BWP group from the pre-configured BWP group, so that the current BWP group can be switched to the target BWP group, and then based on the switch of the BWP group, the cell switch can be realized.
- each BWP group corresponds to a different cell, which enables the terminal to switch the cell correspondingly when switching the BWP group, thereby realizing cell switching, and further realizing beam switching in the satellite communication system.
- BWP group 0 corresponds to beam 1
- BWP group 1 corresponds to beam 2
- BWP group 2 Corresponds to beam 3
- BWP group 3 corresponds to beam 4.
- 2 uplink BWPs and 1 downlink BWP can be set in each BWP group.
- the base station determines that the terminal is to be handed over to beam 3, it can determine BWP group 2 as the target BWP group, and send the indication information of the target BWP group to the terminal, so that the terminal can obtain according to the indication information of the target BWP group Go to the BWP group 2 and switch to the BWP group 2, and then realize the beam switching based on the BWP group 2 corresponding to the beam 3, through the switch of the BWP group.
- the base station sends a BWP group switching message to the terminal, and carries the indication information of the target BWP group in the BWP group switching message, so that the terminal can obtain the target BWP group from the pre-configured BWP group according to the indication information of the target BWP group In turn, it can be switched to the target BWP group, which realizes the handover between cells through the handover of the BWP group, which shortens the cell handover delay compared with the way of implementing the handover between cells through high-level signaling.
- the base station may send a BWP group handover message to the terminal when determining that the terminal needs to perform cell handover.
- the base station when it sends a BWP group handover message to the terminal, it can send a message to the terminal through a physical layer message, a medium access control (MAC) layer message, or a radio resource control (Radio Resource Control, RRC) layer message.
- the terminal sends the BWP group switching message.
- the physical layer message may be a DCI message.
- the base station also needs to configure at least two BWP groups for the terminal before sending the BWP group switching message to the terminal.
- the base station may configure the frequency domain position of each BWP in the at least two BWP groups based on the same preset reference resource block (Resource Block, RB) position ; Or, based on different preset reference RB positions, configure the frequency domain position of the BWP in each BWP group.
- Resource Block RB
- the frequency domain positions in different BWP groups may be configured based on different preset reference RB positions, for example
- the configuration may be based on the starting RB position of the cell corresponding to the BWP group.
- the base station may also receive the uplink signal sent by the terminal in the target BWP group, and then, according to the uplink signal, determine that the terminal is currently located The BWP group is successfully switched to the target BWP group.
- the base station when receiving the uplink signal sent by the terminal in the target BWP group, may receive the uplink data sent by the terminal on the PUSCH in the target uplink BWP in the target BWP group; or, receive The random access preamble sent by the terminal on the PRACH of the target BWP group.
- the base station when the base station receives the uplink signal sent by the terminal in the target BWP group, it indicates that the terminal has successfully switched to the target BWP group, so that the base station judges whether the terminal has successfully switched the BWP group through the BWP group receiving the uplink signal.
- the indication information of the target BWP group may include any of the following two situations:
- the indication information of the target BWP group includes identification information of the target BWP group.
- the base station may explicitly notify the indication information of the target BWP group, that is, directly use the identification information of the target BWP group as the indication information of the target BWP group, so that the terminal can directly determine the target BWP group according to the identification of the target BWP group.
- the indication information of the target BWP group includes the identification information of the target BWP group or the target Identification information of any BWP corresponding to the BWP group.
- the base station when the base station pre-configures the correspondence between the identification information of each BWP and the identification information of each BWP group, the base station can implicitly notify the target BWP group of the indication information, that is, any BWP corresponding to the target BWP group
- the identification information of is used as the identification information of the target BWP group. For example, suppose that the base station presets to configure the correspondence between BWP 0 with the identifier 0 and BWP group 0, and BWP 5 with the identifier 5 to BWP group 1.
- the base station needs to use BWP group 1 as the target BWP group, it can set The identification information of the BWP 5 is used as the indication information of the target BWP group.
- the terminal can obtain the target BWP group according to the correspondence between the identification information of the BWP and the identification information of the BWP group.
- the base station may also directly use the identification information of the target BWP group as the indication information of the target BWP group. That is, in this case, the base station can choose which way to indicate the target BWP group.
- the BWP group switching message may also carry at least one of the following information: indication information of the target uplink BWP and target downlink BWP in the target BWP group, and the target BWP group The uplink resource allocation information and the uplink timing advance within.
- the target uplink BWP and the target downlink BWP are both BWPs that need to be activated among multiple BWPs in the target BWP group.
- the following specifically introduces the indication information of the target uplink BWP and the target downlink BWP in the target BWP group, and the uplink resource allocation information in the target BWP group.
- the indication information of the target uplink BWP and the target downlink BWP can be determined in the following manner:
- the indication information of the target uplink BWP and the target downlink BWP includes identification information of the target uplink BWP and identification information of the target downlink BWP.
- the base station can directly use the identification information of the target uplink BWP and the identification information of the target downlink BWP as the indication information of the target uplink BWP and the indication information of the target downlink BWP, respectively, so that the terminal can directly according to the target uplink BWP
- the identification information and the identification information of the target downlink BWP determine the target uplink BWP and the target downlink BWP in the target BWP group.
- the indication information of the target BWP group is determined as the indication information of the target uplink BWP and the target downlink BWP.
- the terminal when the base station pre-configures the uplink BWP and downlink BWP that are activated by default in each BWP, the terminal can determine the target BWP group according to the indication information of the target BWP group, and then can according to the uplink BWP group activated by default in the target BWP group.
- BWP and downlink BWP, the uplink BWP and downlink BWP activated by default are determined to be the target uplink BWP and the target downlink BWP.
- the base station does not need to repeatedly send the indication information of the target uplink BWP and the target downlink BWP, that is, it can directly determine the indication information of the target BWP group as the indication information of the target uplink BWP and the target downlink BWP, that is, pass the indication information of the target BWP group Indicate the target uplink BWP and target downlink BWP.
- the indication information of the target uplink BWP and the target downlink BWP includes, the target uplink BWP or The pairing number corresponding to the target downlink BWP.
- the terminal when the base station configures the uplink and downlink BWPs in the BWP group in pairs and configures the corresponding BWP pairing number, the terminal can directly obtain the paired uplink BWP and downlink BWP according to the pairing number. Based on this, the base station can directly determine the pairing number corresponding to the target uplink BWP or the target downlink BWP as the indication information of the target uplink BWP and the target downlink BWP.
- the indication information of the target uplink BWP and the target downlink BWP includes the identification information of the target uplink BWP or the target downlink BWP The identification information.
- the terminal can obtain another BWP in the corresponding relationship according to one of the BWPs in the corresponding relationship.
- the base station can determine the identification information of the target uplink BWP or the identification information of the target downlink BWP as the indication information of the target uplink BWP and the target downlink BWP, so that the terminal can configure the corresponding relationship based on the uplink BWP and downlink BWP in the BWP group , According to the identification information of the target uplink BWP or the identification information of the target downlink BWP, the corresponding downlink BWP or uplink BWP is determined.
- the target uplink BWP and target downlink BWP are indicated in the above-mentioned ways, so that the terminal can determine the target uplink BWP and target according to the indication information of the target uplink BWP and target downlink BWP in the target BWP group carried in the BWP group switching message Downlink BWP to realize data transmission.
- the uplink resource allocation information includes: PUSCH resource allocation information in the target uplink BWP in the target BWP group, or Physical Random Access Channel (PRACH) resource information in the target BWP group.
- PRACH Physical Random Access Channel
- the PRACH resource information includes frequency domain resource information and time domain resource information.
- the frequency domain resource information in the PRACH resource information may be the absolute frequency domain resource information of the PRACH, or the frequency domain resource in the cell corresponding to the target BWP group, or the frequency domain resource of the PRACH in the target uplink BWP.
- the time domain resource information in the PRACH resource information may be a determined transmission opportunity or time period.
- the base station includes the PUSCH resource allocation information in the target uplink BWP in the target BWP group in the uplink resource allocation information, so that when the BWP group handover message carries the uplink resource allocation information, the terminal can follow the target uplink resource allocation information in the uplink resource allocation information.
- the PUSCH resource allocation information in the BWP determines the PUSCH resource used to transmit the uplink data, and then the uplink data transmission; in addition, by including the PRACH resource information in the target BWP group in the uplink resource allocation information, the terminal can be based on the PRACH Resource information, sending a random access preamble on the PRACH resource of the target BWP group.
- the uplink timing advance indicates the uplink timing advance for PUSCH transmission.
- the terminal can determine the PUSCH transmission time according to the uplink timing advance.
- this embodiment sends a BWP group handover message to the terminal when it is determined that the terminal needs to perform cell handover, and the BWP group handover message carries indication information of the target BWP group, based on the base station having pre-configured the terminal with at least two BWP group, and the target BWP group is obtained by the base station from at least two BWP groups, so that the terminal can switch the BWP group based on the pre-configured BWP group according to the indication information of the target BWP group, and then realize the cell switch.
- the cell handover delay is shortened.
- the second step flow chart of the BWP group switching method in this embodiment of the application includes the following steps:
- Step 201 Receive the BWP group switching message of the bandwidth part sent by the base station.
- the BWP group switching message carries the indication information of the target BWP group.
- the base station has pre-configured at least two BWP groups for the terminal, and each BWP group includes at least one uplink BWP and at least one downlink BWP.
- the target BWP group is one of the at least two BWP groups.
- each BWP group corresponds to a different cell, which enables the terminal to switch to the cell corresponding to the target BWP group when switching to the target BWP group, thereby realizing cell handover.
- the terminal when the terminal receives the BWP group handover message sent by the base station, it can use physical layer messages, medium access control (MAC) layer messages, or radio resource control (Radio Resource Control, RRC). ) Layer message, receiving the BWP group handover message sent by the base station.
- MAC medium access control
- RRC Radio Resource Control
- Step 202 Switch the terminal from the current BWP group to the target BWP group according to the indication information of the target BWP group.
- the target BWP group is one of the at least two BWP groups, so that the terminal can, after receiving the BWP group switching message, be able to
- the indication information of the target BWP group determines the target BWP group from the pre-configured BWP group, and switches the terminal from the current BWP group to the target BWP group, thereby realizing cell switching through the handover of the BWP group.
- the cell switching is realized through the switching of the BWP group.
- time and/or frequency synchronization may be performed on the downlink resources corresponding to the target BWP group according to the indication information of the target BWP group.
- the terminal may perform downlink time and/or frequency synchronization through a synchronization signal block (Synchronization Signal Block, SSB) or downlink reference signal in the target BWP group.
- a synchronization signal block Synchronization Signal Block, SSB
- SSB Synchronization Signal Block
- the indication information of the target BWP group may include the identification information of the target BWP group or the identification information of any BWP corresponding to the target BWP group.
- the terminal is Switch from the current BWP group to the target BWP group.
- the terminal can determine whether to perform BWP group switching through the identification information of the target BWP group, that is, it can detect the identification information of the target BWP group and the current BWP group. Whether the identification information of the group is the same, if the difference is detected at this time, the terminal can be handed over from the BWP group where it is currently located to the target BWP group, thereby realizing cell handover.
- the indication information of the target BWP group is the identification information of the BWP
- the BWP group corresponding to the BWP is determined as the target BWP group, and when it is detected that the identification information of the current BWP group is different from the identification information of the target BWP group, the terminal is transferred from the current The BWP group where it is located is switched to the target BWP group.
- the indication information of the target BWP group is the identification information of the BWP
- the terminal can then base on the correspondence The relationship acquires the BWP group where the BWP is located, and determines the BWP group as the target BWP group; then the terminal can detect whether the identification information of the target BWP group is the same as the identification information of the current BWP group, and if it is different at this time, Then, the terminal can be handed over from the BWP group where it is currently located to the target BWP group, thereby realizing cell handover.
- the terminal performs different BWP group switching processes according to the different indication information of the target BWP group, and realizes the flexible switching of the BWP group.
- the BWP group handover message may also carry at least one of the following information: indication information of the target uplink BWP and target downlink BWP in the target BWP group, and the target BWP group The uplink resource allocation information and the uplink timing advance within.
- the indication information of the target uplink BWP and the target downlink BWP will be described.
- the indication information of the target uplink BWP and the target downlink BWP includes any one of the following information: the identification information of the target uplink BWP and the target downlink BWP, the target uplink BWP or the target downlink BWP The corresponding pairing number, the identification information of the target uplink BWP or the identification information of the target downlink BWP.
- the terminal can directly determine the target according to the identification information of the target uplink BWP and the identification information of the target downlink BWP The target uplink BWP and the target downlink BWP to be activated in the BWP group.
- the terminal can directly obtain the target uplink BWP and the target downlink BWP configured in pairs according to the pairing number.
- the base station has pre-configured the uplink BWP and downlink BWP in each BWP group at this time.
- the terminal can obtain the corresponding target downlink BWP or target uplink BWP according to the identification information of the target uplink BWP or the identification information of the target downlink BWP based on the correspondence.
- the terminal can directly according to the indication information of the target BWP group, combine the uplink BWP and the downlink BWP that are activated by default in the target BWP group.
- the downlink BWP is determined as the target uplink BWP and the target downlink BWP, that is, the target uplink BWP and the target downlink BWP are implicitly indicated.
- the uplink resource allocation information includes: physical uplink shared channel PUSCH resource allocation information in the target uplink BWP in the target BWP group, or physical random access channel (PRACH) resource information in the target BWP group; Wherein, the PRACH resource information includes frequency domain resource information and time domain resource information.
- PUSCH resource allocation information in the target uplink BWP in the target BWP group or physical random access channel (PRACH) resource information in the target BWP group
- PRACH resource information includes frequency domain resource information and time domain resource information.
- the terminal may also perform subsequent operations according to the information carried in the BWP group switching message according to the difference of the information carried in the BWP group switching message. This will be described in detail below.
- the terminal switches the terminal from the current BWP group according to the indication information of the target BWP group After reaching the target BWP group, according to the indication information of the target uplink BWP and the target downlink BWP, the terminal can be switched from the uplink BWP in the current BWP group to the target uplink BWP, and from the current BWP group The downlink BWP in is switched to the target downlink BWP.
- the terminal needs to follow the indication information of the target uplink BWP and the target downlink BWP,
- the uplink is switched from the current uplink BWP to the target uplink BWP
- the downlink is switched from the current downlink BWP to the target downlink BWP respectively, so as to realize the switching process of the BWP group.
- the uplink signal may also be sent in the target BWP group.
- different uplink signal transmission modes can be selected according to different uplink resource allocation information.
- the PUSCH resource allocation information may be The uplink data is sent on the corresponding PUSCH.
- the information corresponding to the PRACH resource information may be The random access preamble is sent on PRACH.
- the terminal may switch the terminal from the BWP group it is currently in to the target BWP group according to the indication information of the target BWP group.
- the downlink timing of the target BWP group and the uplink timing advance determine the uplink transmission time of the PUSCH, and perform PUSCH transmission according to the uplink transmission time of the PUSCH.
- the PUSCH can be sent according to the uplink timing advance maintained by itself.
- the terminal performs subsequent operations before sending the data according to other information other than the indication information of the target BWP group carried in the BWP group switching message. Ensure the normal transmission of uplink data.
- this embodiment receives the BWP group handover message carrying the indication information of the target BWP group sent by the base station, and switches the terminal to the target BWP group according to the indication information of the target BWP group, thereby realizing the realization of the cell through the handover of the BWP group.
- each BWP group corresponds to a beam (cell), that is, referring to FIG. 3, BWP group ID0 corresponds to beam 1, BWP group ID1 corresponds to beam 2, BWP group ID2 corresponds to beam 3, and BWP group ID3 corresponds to beam 4.
- the frequency domain positions of BWPs in different BWP groups can be configured with respect to one reference RB position, or can be configured with reference to different reference RB positions, for example, each refer to the starting RB position of the corresponding beam.
- the terminal currently works in the downlink BWP ID0 and uplink BWP ID1 of beam 1 (BWP group ID0).
- the base station determines that the terminal needs to switch from beam 1 to beam 2, it can send a BWP group switching message to the terminal.
- the following is an example for the base station to send a BWP group handover message to the terminal through a MAC layer message.
- the BWP group switch message includes the following indication information: the target BWP group ID is 1, the target downlink BWP ID is 0, and the target uplink BWP ID is 0, indicating the PUSCH resource allocation or PARCH resource in the uplink BWP ID0 in the BWP group ID1, It also indicates the uplink timing advance of PUSCH transmission.
- the terminal receives and analyzes the BWP group handover message sent by the base station.
- the terminal performs time and/or frequency synchronization on the downlink resource corresponding to the BWP group ID1, for example, performs downlink time and/or frequency synchronization through the SSB or the downlink reference signal in the BWP group ID1.
- the terminal switches the BWP group according to the BWP group switching message. Specifically, the downlink is switched from the downlink BWP ID0 of the BWP group ID0 to the downlink BWP ID0 of the BWP group ID1, and the uplink is switched from the uplink BWP ID1 of the BWP group ID0 to the uplink BWP ID0 of the BWP group ID1.
- the terminal determines the uplink transmission time of the PUSCH according to the downlink timing of the BWP group ID1 and the uplink timing advance in the BWP group handover message, and sends uplink data on the indicated PUSCH resource, or on the indicated PRACH of the BWP group ID1
- the random access preamble is sent on the resource.
- the base station determines that the terminal has successfully switched to the target BWP group by receiving the uplink data on the PUSCH in the uplink BWP ID0 of the BWP group ID1; or, the base station receives the random access sent by the terminal on the PRACH resource of the BWP group ID1. Enter the preamble and determine that the terminal has successfully switched to the target BWP group.
- the base station configures the BWP group, it configures both the uplink BWP and the downlink BWP that are activated by default, and assume that both are BWP ID0.
- the BWP group switching message carries the following indication information: the ID of the target BWP group is 1, indicating the PUSCH resource allocation in the uplink BWP ID0 in the BWP group ID1.
- the terminal receives and analyzes the BWP group handover message sent by the base station.
- the terminal performs time and/or frequency synchronization on the downlink resource corresponding to the BWP group ID1, for example, performs downlink time and/or frequency synchronization through the SSB or the downlink reference signal in the BWP group ID1.
- the terminal switches the BWP group to the BWP group ID1, and further switches to the uplink and downlink BWP ID0 in the BWP group ID1.
- the terminal determines the uplink timing advance for PUSCH transmission according to the downlink timing of the BWP group ID1 and the uplink timing advance maintained by itself, and transmits uplink data on the indicated PUSCH resource.
- the base station determines that the terminal has successfully switched to the target BWP group by receiving the uplink data on the PUSCH in the uplink BWP ID0 of the BWP group ID1.
- the base station when the base station determines that the terminal needs to perform cell handover, it sends a BWP group handover message to the terminal, and the BWP group handover message carries indication information of the target BWP group, and then the terminal according to the indication information of the target BWP group Performing BWP group handover realizes cell handover through BWP group handover, which shortens the cell handover time delay compared to the way that high-level signaling is used to implement cell handover.
- the BWP group switching device includes:
- the sending module 401 is configured to send a bandwidth part BWP group switching message to the terminal, and the BWP group switching message carries indication information of the target BWP group;
- the base station pre-configures at least two BWP groups for the terminal, and each BWP group includes at least one uplink BWP and at least one downlink BWP; the target BWP group is obtained by the base station from the at least two BWP groups.
- the BWP group switching device includes:
- the receiving module 501 is configured to receive a bandwidth part BWP group switching message sent by the base station, where the BWP group switching message carries indication information of the target BWP group;
- the switching module 502 is configured to switch the terminal from the current BWP group to the target BWP group according to the indication information of the target BWP group; wherein,
- the base station pre-configures at least two BWP groups for the terminal, each BWP group includes at least one uplink BWP and at least one downlink BWP, and the target BWP group is one of the at least two BWP groups.
- the electronic device may include: a processor 610, a communications interface 620, a memory (memory) 630, and The communication bus 640, in which the processor 610, the communication interface 620, and the memory 630 communicate with each other through the communication bus 640.
- the processor 610 may call a computer program stored on the memory 630 and running on the processor 610 to execute the methods provided in the foregoing embodiments, for example, including: sending a bandwidth part BWP group switching message to the terminal, and the BWP The group switching message carries indication information of the target BWP group; wherein, the base station pre-configures the terminal with at least two BWP groups, and each BWP group includes at least one uplink BWP and at least one downlink BWP; the target BWP group For the base station to select from the at least two BWP groups.
- each BWP group corresponds to a different cell.
- the sending a bandwidth part BWP group switching message to the terminal includes: sending the BWP group switching message to the terminal when it is determined that the terminal needs to perform cell switching.
- the sending a bandwidth part BWP group switching message to the terminal includes: sending the BWP group switching message to the terminal through a physical layer message, a media access control MAC layer message, or a radio resource control RR layer message news.
- the indication information of the target BWP group includes the identification information of the target BWP group; or, when the base station preconfigures the correspondence between the identification information of each BWP and the identification information of each BWP group,
- the indication information of the target BWP group includes the identification information of the target BWP group or the identification information of any BWP corresponding to the target BWP group.
- the BWP group handover message also carries at least one of the following information: indication information of the target uplink BWP and target downlink BWP in the target BWP group, uplink resource allocation information in the target BWP group, and uplink Timing advance.
- the indication information of the target uplink BWP and the target downlink BWP includes the identification information of the target uplink BWP and the identification information of the target downlink BWP; or, when the base station pre-instructs the uplink BWP to be activated by default in each BWP group And downlink BWP, the indication information of the target BWP group is determined as the indication information of the target uplink BWP and the target downlink BWP; or, when the base station pre-configures the uplink BWP and downlink BWP in each BWP group in pairs , And when a pairing number is set, the indication information of the target uplink BWP and the target downlink BWP includes the pairing number corresponding to the target uplink BWP or the target downlink BWP; or, when the base station advances the uplink of each BWP group When the BWP and the downlink BWP are configured with a corresponding relationship, the indication information of the target uplink BWP and the target downlink BWP
- the uplink resource allocation information includes: physical uplink shared channel PUSCH resource allocation information in the target uplink BWP in the target BWP group, or physical random access channel PRACH resource information in the target BWP group.
- the processor before the sending a bandwidth part BWP group switching message to the terminal, the processor further implements the following step when executing the program: configuring at least two BWP groups for the terminal, which specifically includes: The preset reference resource block RB position is configured to configure the frequency domain position of each BWP in the at least two BWP groups; or, based on different preset reference RB positions, the frequency domain position of the BWP in each BWP group is configured Configuration.
- the processor further implements the following step when executing the program: receiving the uplink signal sent by the terminal in the target BWP group; The uplink signal determines that the terminal has successfully switched from the current BWP group to the target BWP group.
- the receiving the uplink signal sent by the terminal in the target BWP group includes: receiving the uplink data sent by the terminal on the PUSCH in the target uplink BWP in the target BWP group; or And receive the random access preamble sent by the terminal on the PRACH of the target BWP group.
- it also includes: receiving a bandwidth part BWP group switching message sent by the base station, where the BWP group switching message carries indication information of the target BWP group; according to the indication information of the target BWP group, switching the terminal from the current BWP group To the target BWP group; wherein the base station pre-configures the terminal with at least two BWP groups, each BWP group includes at least one uplink BWP and at least one downlink BWP, and the target BWP group is the at least One of two BWP groups.
- each BWP group corresponds to a different cell.
- the receiving the bandwidth part BWP group switching message sent by the base station includes: receiving the BWP group switching message sent by the base station through a physical layer message or a media access control MAC layer message.
- the indication information of the target BWP group includes the identification information of the target BWP group or the identification information of any BWP corresponding to the target BWP group.
- the switching the terminal from the current BWP group to the target BWP group according to the indication information of the target BWP group includes: when the indication information of the target BWP group is that of the target BWP group When identifying information, if it is detected that the identification information of the current BWP group is different from the identification information of the target BWP group, the terminal is switched from the current BWP group to the target BWP group; or, when the When the indication information of the target BWP group is the identification information of the BWP, obtain the BWP group corresponding to the BWP according to the pre-configured correspondence between the identification information of each BWP and the identification information of each BWP group; The BWP group corresponding to the BWP is determined to be the target BWP group, and when it is detected that the identification information of the current BWP group is different from the identification information of the target BWP group, the terminal is switched from the current BWP group to The target BWP group.
- the BWP group handover message also carries at least one of the following information: indication information of the target uplink BWP and target downlink BWP in the target BWP group, uplink resource allocation information in the target BWP group, and uplink Timing advance.
- the indication information of the target uplink BWP and the target downlink BWP includes any one of the following information: identification information of the target uplink BWP and target downlink BWP, and the target uplink BWP or the target downlink The pairing number corresponding to the BWP, the identification information of the target uplink BWP, or the identification information of the target downlink BWP.
- the terminal when the BWP group switching message carries indication information of the target uplink BWP and the target downlink BWP in the target BWP group, the terminal is moved from the current location according to the indication information of the target BWP group After the BWP group is switched to the target BWP group, the processor further implements the following step when executing the program: according to the indication information of the target uplink BWP and target downlink BWP, the terminal is transferred from the current BWP group The uplink BWP is switched to the target uplink BWP, and the downlink BWP in the current BWP group is switched to the target downlink BWP.
- the uplink resource allocation information includes: physical uplink shared channel PUSCH resource allocation information in the target uplink BWP in the target BWP group, or physical random access channel PRACH resource information in the target BWP group.
- the processor further implements the following steps when executing the program:
- the uplink signal is sent in the target BWP group.
- the sending an uplink signal in the target BWP group includes: when the BWP group switching message carries the uplink resource allocation information, and the uplink resource allocation information is in the target BWP group When the PUSCH resource allocation information in the target uplink BWP, uplink data is sent on the PUSCH corresponding to the PUSCH resource allocation information; or, when the BWP group switching message carries the uplink resource allocation information, and the uplink When the resource allocation information is PRACH resource information in the target BWP group, a random access preamble is sent on the PRACH corresponding to the PRACH resource information.
- the terminal when the BWP group switching message carries the uplink timing advance, the terminal is switched from the current BWP group to the target BWP group according to the indication information of the target BWP group
- the processor further implements the following steps when executing the program: determining the uplink transmission time of the PUSCH according to the downlink timing of the target BWP group and the uplink timing advance; and performing according to the uplink transmission time of the PUSCH PUSCH transmission.
- the processor further implements the following step when executing the program: according to the indication information of the target BWP group, in the target BWP group corresponding to the Time and/or frequency synchronization on the downlink resources.
- the above-mentioned logical instructions in the memory 630 can be implemented in the form of a software functional unit and when sold or used as an independent product, they can be stored in a computer readable storage medium.
- the technical solution of this application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
- the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program code .
- the embodiments of the present application also provide a non-transitory computer-readable storage medium on which a computer program is stored.
- the computer program is executed by a processor, the computer program is implemented to perform the methods provided in the foregoing embodiments, for example, including: Send a bandwidth part BWP group switch message, the BWP group switch message carries indication information of the target BWP group; wherein, the base station pre-configures at least two BWP groups for the terminal, and each BWP group includes at least one uplink BWP And at least one downlink BWP; the target BWP group is obtained by the base station from the at least two BWP groups.
- Another example includes: receiving a bandwidth part BWP group handover message sent by the base station, the BWP group handover message carrying indication information of the target BWP group; according to the indication information of the target BWP group, the terminal is switched from the current BWP group To the target BWP group; wherein the base station pre-configures the terminal with at least two BWP groups, each BWP group includes at least one uplink BWP and at least one downlink BWP, and the target BWP group is the at least One of two BWP groups.
- the device embodiments described above are merely illustrative.
- the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in One location, or it can be distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the objectives of the solutions of the embodiments. Based on the content disclosed in this application, those of ordinary skill in the art can understand and implement the technical solutions disclosed in this application without creative work.
- an embodiment of the present application provides a computer software product, which can be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes several instructions to enable a computer
- a device for example, a personal computer, a server, or a network device, etc. executes the method described in each embodiment or some parts of the embodiment.
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Abstract
本申请实施例提供一种BWP组切换方法、基站及终端。所述BWP组切换方法包括：向所述终端发送带宽部分BWP组切换消息，所述BWP组切换消息中携带有目标BWP组的指示信息；其中，基站为所述终端预先配置有至少两个BWP组，每个BWP组中包括至少一个上行BWP和至少一个下行BWP；所述目标BWP组为基站从所述至少两个BWP组中进行选择得到。本申请实施例实现了以较小时延进行小区切换。
Description
相关申请的交叉引用
本申请要求于2019年8月9日提交的申请号为201910736424.7，发明名称为“一种BWP组切换方法、基站及终端”的中国专利申请的优先权，其通过引用方式全部并入本文。
本申请涉及通信技术领域，尤其涉及一种BWP组切换方法、基站及终端。
在卫星通信系统中，一个波束对应一个小区，例如一颗卫星有四个波束，分别占用400MHz带宽，四个波束共占用1.6GHz带宽，四个波束分别对应不同的小区。此外，卫星通信相对地面通信的一个重要的区别在于，卫星会高速移动，进而导致更加频繁的小区切换。例如，即使终端在卫星静止，此时由于卫星的移动，终端也可能是秒级的小区切换。
而在传统的地面通信系统中，小区切换是通过高层信令触发的，例如网络侧通过高层信令触发终端进行小区切换，终端解析高层信令并按照网络侧的指示进行切换，然后在目标小区发送切换完成消息。但是在卫星通信系统中每个波束对应一个小区，如果卫星通信系统采用与地面通信系统相同的基于高层信令的小区切换机制，即终端小区之间的切换需要采用高层无线资源控制(Radio Resource Control)信令实现，则会导致小区切换时延较大，而由于卫星通信的切换非常频繁，切换时延过大会导致通信中断的时间比例过大。
发明内容
本申请实施例提供一种BWP组切换方法、基站及终端，以实现卫星通信系统中以较小的切换时延进行小区之间的切换。
第一方面，本申请实施例提供一种BWP组切换方法，所述BWP组切换方法包括：
向所述终端发送带宽部分BWP组切换消息，所述BWP组切换消息中携带有目标BWP组的指示信息；其中，
基站为所述终端预先配置有至少两个BWP组，每个BWP组中包括至少一个上行BWP和至少一个下行BWP；所述目标BWP组为基站从所述至少两个BWP组中进行选择得到。
第二方面，本申请实施例提供一种BWP切换方法，所述BWP切换方法包括：
接收基站发送的带宽部分BWP组切换消息，所述BWP组切换消息中携带有目标BWP组的指示信息；
根据所述目标BWP组的指示信息，将终端由当前所在的BWP组切换至所述目标BWP组；其中，
所述基站为所述终端预先配置有至少两个BWP组，每个BWP组中包括至少一个上行BWP和至少一个下行BWP，所述目标BWP组为所述至少两个BWP组中的其中一个。
第三方面，本申请实施例提供一种BWP组切换装置，所述BWP组切换装置包括：
发送模块，配置成向所述终端发送带宽部分BWP组切换消息，所述BWP组切换消息中携带有目标BWP组的指示信息；其中，
基站为所述终端预先配置有至少两个BWP组，每个BWP组中包括至少一个上行BWP和至少一个下行BWP；所述目标BWP组为基站从所述至少两个BWP组中进行选择得到。
第四方面，本申请实施例提供一种BWP组切换装置，所述BWP组切换装置包括：
接收模块，配置成接收基站发送的带宽部分BWP组切换消息，所述BWP组切换消息中携带有目标BWP组的指示信息；
切换模块，配置成根据所述目标BWP组的指示信息，将终端由当前所在的BWP组切换至所述目标BWP组；其中，
所述基站为所述终端预先配置有至少两个BWP组，每个BWP组中包括至少一个上行BWP和至少一个下行BWP，所述目标BWP组为所述至少两个BWP组中的其中一个。
第五方面，本申请实施例提供一种基站，包括存储器、处理器及存储在存储器上并可在处理器上运行的程序，所述处理器执行所述程序时实现上述第一方面所述的BWP组切换方法的步骤。
第六方面，本申请实施例提供一种终端，包括存储器、处理器及存储在存储器上并可在处理器上运行的程序，所述处理器执行所述程序时实现上述第二方面所述的BWP组切换方法的步骤。
第七方面，本申请实施例提供一种非暂态计算机可读存储介质，其上存储有计算机程序，该计算机程序被处理器执行时实现所述的BWP组切换方法的步骤。
本申请实施例提供的BWP组切换方法、基站及终端，通过向终端发送BWP组切换消息，且在BWP组切换消息中携带目标BWP组的指示信息，使得终端能够根据目标BWP组的指示信息，从预先配置的BWP组中获取到目标BWP组，进而能够切换至目标BWP组，从而能够实现通过BWP组的切换实现小区之间的切换，这相较于通过高层信令实现卫星通信系统中小区之间切换的方式，缩短了小区切换时延。
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例中BWP组切换方法的步骤流程图之一；
图2为本申请实施例中BWP组切换方法的步骤流程图之二；
图3为本申请实施例中BWP组的配置示意图；
图4为本申请实施例中BWP组切换装置的模块框图之一；
图5为本申请实施例中BWP组切换装置的模块框图之二；
图6为本申请实施例中基站或终端的结构示意图。
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描 述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
新空口(New Radio，NR)中支持网络侧为终端在一个小区中配置最多4个下行带宽部分(BandWidth Part，BWP)和4个上行BWP。此外，在NR中同样支持基于下行控制信息(Downlink Control Information，DCI)的BWP切换，即网络侧发送DCI，其中携带BWP编号以及在BWP内的物理下行共享信道(Physical Downlink Shared Channel，PDSCH)或者物理上行共享信道(Physical Uplink Shared Channel，PUSCH)资源分配。
而针对现有基于高层信令的小区切换机制，若将采用该机制实现卫星通信中的波束(小区)切换，则会产生切换时延较大的问题，此时基于卫星通信的切换非常频繁，切换时延过大会导致通信中断的时间比例较大。
基于上述问题，本申请可以通过预先为小区配置BWP组，然后通过BWP组的切换实现小区切换，即波束切换，从而实现较短时延的波束切换。
针对上述思想，下面对本申请进行具体介绍。
如图1所示，为本申请实施例中BWP组切换方法的步骤流程图之一，该BWP组切换方法包括：
步骤101：向终端发送带宽部分BWP组切换消息。
具体的，BWP组切换消息中携带有目标BWP组的指示信息。
此外，具体的，基站为终端预先配置有至少两个BWP组，每个BWP组中包括至少一个上行BWP和至少一个下行BWP。基于每个BWP组中包括至少一个上行BWP和至少一个下行BWP，使得终端能够在每个BWP组内实现上下行的数据传输。
另外，具体的，目标BWP组为基站从至少两个BWP组中进行选择得到。这使得当基站将BWP组切换消息发送给终端时，基于目标BWP组为基站从预先配置的至少两个BWP组中选择得到，终端能够根据BWP组切换消息中所携带的目标BWP组的指示信息，从预先配置的BWP组中获取得到目标BWP组，从而能够进一步由当前所在的BWP组切换至目标BWP组，进而基于BWP组的切换，实现小区的切换。
具体的，每个BWP组对应一个不同的小区，这使得终端在切换BWP组时，能够对应切换小区，从而实现小区的切换，进而在卫星通信系统中，实现波束的切换。
例如，假设基站为终端预先配置有标识为0、1、2和3的四个BWP组，且卫星具有4个波束，则可以BWP组0对应波束1，BWP组1对应波束2，BWP组2对应波束3，BWP组3对应波束4。再例如，每个BWP组内可以设置2个上行BWP和1个下行BWP。此时若基站确定终端待切换至波束3，则可以将BWP组2确定为目标BWP组，并将该目标BWP组的指示信息发送给终端，从而使得终端能够根据该目标BWP组的指示信息获取到BWP组2，并切换至BWP组2，进而实现基于BWP组2对应波束3，通过BWP组的切换实现波束的切换。
当然，在此需要说明的是，在此并不具体限定为终端预先配置的BWP组的组数，也并不具体限定每个BWP组中的BWP的个数。当然，较优的，可以设置不同BWP组与所有波束中不同波束(小区)之间的一一对应关系，从而使得能够实现每个波束均能够对应一个不同的BWP组，进而实现在需要切换到目标波束时，能够获取到与目标波束所对应的目标BWP组，并进行切换。
这样，基站通过向终端发送BWP组切换消息，且在BWP组切换消息中携带目标BWP组的指示信息，使得终端能够根据目标BWP组的指示信息，从预配置的BWP组中获取到目标BWP组，进而能够切换至目标BWP组，实现了通过BWP组的切换实现小区之间的切换，这相较于通过高层信令实现小区之间切换的方式，缩短了小区切换时延。
具体的，基站可以在确定终端需要进行小区切换时，向终端发送BWP组切换消息。
此外，具体的，基站在向终端发送BWP组切换消息时，可以通过物理层消息、媒体接入控制(Medium Access Control，MAC)层消息或无线资源控制(Radio Resource Control，RRC)层消息，向所述终端发送所述BWP组切换消息。具体的，物理层消息可以为DCI消息。
此外，在本实施例中，基站在向终端发送BWP组切换消息之前，还需要为终端配置至少两个BWP组。具体的，基站在为终端配置至少两个 BWP组时，可以基于相同的预设参考资源块(Resource Block，RB)位置，对所述至少两个BWP组内每个BWP的频域位置进行配置；或者，基于不同的预设参考RB位置，对每个BWP组内BWP的频域位置进行配置。
具体的，在基于不同的预设参考RB位置，对每个BWP组内BWP的频域位置进行配置时，可以不同的BWP组内的频域位置基于不同的预设参考RB位置进行配置，例如对每个BWP组内的BWP频域位置进行配置时，可以基于该BWP组所对应的小区的起始RB位置进行配置。
另外，在本实施例中，基站在向终端发送BWP组切换消息之后，还可以接收所述终端在所述目标BWP组内发送的上行信号，然后根据所述上行信号，确定终端由当前所在的BWP组成功切换至所述目标BWP组。
具体的，基站在接收终端在所述目标BWP组内发送的上行信号时，可以接收所述终端在所述目标BWP组中目标上行BWP内的PUSCH上，所发送的上行数据；或者，接收所述终端在所述目标BWP组的PRACH上所发送的随机接入前导码。
这样，基站接收到终端在目标BWP组内发送的上行信号时，说明终端已成功切换至目标BWP组，实现了基站通过接收上行信号的BWP组判断终端是否成功切换了BWP组。
另外，具体的，在此对目标BWP组的指示信息进行介绍。其中目标BWP组的指示信息可以包括如下两种情况下的任意一种：
其一，目标BWP组的指示信息包括目标BWP组的标识信息。
具体的，基站可以显式通知目标BWP组的指示信息，即可以直接将目标BWP组的标识信息作为目标BWP组的指示信息，从而使得终端能够直接根据目标BWP组的标识进行确定目标BWP组。
其二，当基站预先配置每个BWP的标识信息与每个BWP组的标识信息之间的对应关系时，所述目标BWP组的指示信息包括，所述目标BWP组的标识信息或所述目标BWP组所对应的任意一个BWP的标识信息。
具体的，当基站预先配置每个BWP的标识信息与每个BWP组的标识信息之间的对应关系时，基站可以隐式通知目标BWP组的指示信息，即将目标BWP组所对应的任意一个BWP的标识信息作为目标BWP组的标识信息。例如，假设基站预设配置标识为0的BWP 0与BWP组0、标识 为5的BWP 5与BWP组1之间相对应，则基站在需要将BWP组1作为目标BWP组时，则可以将BWP 5的标识信息作为目标BWP组的指示信息，此时终端则可以根据BWP的标识信息与BWP组的标识信息之间的对应关系，获取到目标BWP组。
另外，具体的，基站同样可以直接将目标BWP组的标识信息作为目标BWP组的指示信息。即在该种情况下，基站可以选择采用何种方式对目标BWP组进行指示。
当然，BWP组切换消息中除携带目标BWP组的指示信息之外，还可以携带有下述信息中的至少一个：所述目标BWP组内目标上行BWP和目标下行BWP的指示信息、目标BWP组内的上行资源分配信息以及上行定时提前量。
具体的，目标上行BWP和目标下行BWP均为目标BWP组内多个BWP中需要进行激活的BWP。
下面分别对所述目标BWP组内目标上行BWP和目标下行BWP的指示信息，以及目标BWP组内的上行资源分配信息进行具体介绍。
其中，针对目标上行BWP和目标下行BWP的指示信息，可以通过下述方式确定所述目标上行BWP和目标下行BWP的指示信息：
其一，所述目标上行BWP和目标下行BWP的指示信息包括，所述目标上行BWP的标识信息和目标下行BWP的标识信息。
在该种方式中，基站可以直接将目标上行BWP的标识信息和目标下行BWP的标识信息，分别作为目标上行BWP的指示信息和目标下行BWP的指示信息，从而使得终端能够直接根据目标上行BWP的标识信息和目标下行BWP的标识信息，确定目标BWP组内的目标上行BWP和目标下行BWP。
其二，当基站预先指示每个BWP组中默认激活的上行BWP和下行BWP时，将所述目标BWP组的指示信息确定为所述目标上行BWP和目标下行BWP的指示信息。
在该种方式中，当基站预先配置每个BWP中默认激活的上行BWP和下行BWP时，终端在根据目标BWP组的指示信息确定目标BWP组时，便能够根据目标BWP组中默认激活的上行BWP和下行BWP，确定默认 激活的上行BWP和下行BWP即为目标上行BWP和目标下行BWP。基于此，基站无需再重复发送目标上行BWP和目标下行BWP的指示信息，即可以直接将目标BWP组的指示信息确定为目标上行BWP和目标下行BWP的指示信息，即通过目标BWP组的指示信息对目标上行BWP和目标下行BWP进行指示。
其三，当基站预先对每个BWP组内的上行BWP和下行BWP进行成对配置，且设置有配对编号时，所述目标上行BWP和目标下行BWP的指示信息包括，所述目标上行BWP或目标下行BWP所对应的配对编号。
在该种方式中，当基站成对配置BWP组内的上下行BWP且配置相应的BWP配对编号时，终端能够根据配对编号直接获取到成对配置的上行BWP和下行BWP。基于此，基站可以直接将目标上行BWP或目标下行BWP所对应的配对编号确定为目标上行BWP和目标下行BWP的指示信息。
其四，当基站预先对每个BWP组内的上行BWP和下行BWP配置有对应关系时，所述目标上行BWP和目标下行BWP的指示信息包括，所述目标上行BWP的标识信息或目标下行BWP的标识信息。
在该种方式中，当基站预先对每个BWP组内的上行BWP和下行BWP配置有对应关系时，终端能够根据该对应关系中的其中一个BWP，获取到该对应关系中的另一个BWP。基于此，基站可以将目标上行BWP的标识信息或目标下行BWP的标识信息确定为目标上行BWP和目标下行BWP的指示信息，从而使得终端能够基于BWP组内的上行BWP和下行BWP配置有对应关系，根据目标上行BWP的标识信息或目标下行BWP的标识信息，确定对应的下行BWP或上行BWP。
这样，通过上述几种方式对目标上行BWP和目标下行BWP进行指示，使得终端能够根据BWP组切换消息中携带的目标BWP组内目标上行BWP和目标下行BWP的指示信息，确定目标上行BWP和目标下行BWP，从而实现数据的传输。
此外，针对目标BWP组内的上行资源分配信息进行说明。
所述上行资源分配信息包括：所述目标BWP组中目标上行BWP内的PUSCH资源分配信息，或者所述目标BWP组内的物理随机接入信道 (Physical Random Access Channel，PRACH)资源信息。
具体的，所述PRACH资源信息包括频域资源信息和时域资源信息。PRACH资源信息中的频域资源信息可以为，PRACH的绝对频域资源信息，或者在目标BWP组所对应的小区内的频域资源，或者PRACH在目标上行BWP内的频域资源。此外，PRACH资源信息中的时域资源信息可以为，确定的传输机会或者时间段。
这样，基站通过在上行资源分配信息中包括目标BWP组中目标上行BWP内的PUSCH资源分配信息，使得在BWP组切换消息中携带上行资源分配信息时，终端能够根据上行资源分配信息中的目标上行BWP内的PUSCH资源分配信息，确定用于发送上行数据的PUSCH资源，进而进行上行数据的发送；此外，通过在上行资源分配信息中包括目标BWP组内的PRACH资源信息，使得终端能够根据该PRACH资源信息，在目标BWP组的PRACH资源上发送随机接入前导码。
另外，上行定时提前量为指示PUSCH发送的上行定时提前量。
通过在BWP组内携带上行定时提前量，使得终端能够根据上行定时提前量进行PUSCH发送时间的确定。
这样，本实施例通过在确定终端需要进行小区切换时，向终端发送BWP组切换消息，且该BWP组切换消息中携带有目标BWP组的指示信息，基于基站已预先为终端配置有至少两个BWP组，且目标BWP组为基站从至少两个BWP组中进行选择得到，使得终端能够基于预先配置的BWP组，根据目标BWP组的指示信息进行BWP组的切换，进而实现小区的切换，这相较于采用高层信令实现小区切换的方式，缩短了小区切换时延。
此外，如图2所示，为本申请实施例中BWP组切换方法的步骤流程图之二，该BWP组切换方法包括如下步骤：
步骤201：接收基站发送的带宽部分BWP组切换消息。
在本步骤中，具体的，BWP组切换消息中携带有目标BWP组的指示信息。
具体的，基站为终端已预先配置有至少两个BWP组，每个BWP组中包括至少一个上行BWP和至少一个下行BWP。此外，目标BWP组为所 述至少两个BWP组中的其中一个。
这使得当终端接收到基站发送的BWP组切换消息时，能够根据BWP组切换消息中携带的目标BWP组的指示信息，从预先配置的BWP组中确定目标BWP组。
此外，具体的，每个BWP组对应一个不同的小区，这使得终端在切换至目标BWP组时，能对应切换到该目标BWP组所对应的小区，进而实现了小区的切换。
当然，在此需要说明的是，终端在接收基站发送的BWP组切换消息时，可以通过物理层消息、媒体接入控制(Medium Access Control，MAC)层消息或无线资源控制(Radio Resource Control，RRC)层消息，接收基站发送的BWP组切换消息。
步骤202：根据目标BWP组的指示信息，将终端由当前所在的BWP组切换至所述目标BWP组。
在本步骤中，具体的，基于终端已预先配置有至少两个BWP组，且目标BWP组为所述至少两个BWP组中的其中一个，使得终端在接收到BWP组切换消息之后，能够根据目标BWP组的指示信息，从所预先配置的BWP组中确定目标BWP组，并将终端由当前所在的BWP组切换至目标BWP组，从而实现了通过BWP组的切换进行小区的切换。
这样，通过接收基站发送的携带有目标BWP组的指示信息的BWP组切换消息，并根据目标BWP组的指示信息将终端切换至目标BWP组，进而实现了通过BWP组的切换实现小区的切换，针对卫星通信系统，这相较于采用高层信令实现波束切换的方式，缩短了波束切换时延。
此外，进一步地，在接收基站发送的BWP组切换消息之后，还可以根据目标BWP组的指示信息，在目标BWP组所对应的下行资源上进行时间和/或频率同步。
例如，终端可以通过目标BWP组中的同步信号块(Synchronization Signal Block，SSB)或下行参考信号进行下行时间和/或频率同步。
另外，进一步地，在上述实施例的基础上，在此对BWP组切换消息中所携带的BWP组的指示信息进行说明。其中，目标BWP组的指示信息可以包括目标BWP组的标识信息或者所述目标BWP组所对应的任意一个 BWP的标识信息。
还需要说明的是，本实施例可以根据BWP组切换消息中所携带的BWP组的指示信息的不同，而选择不同的方式，根据目标BWP组的指示信息进行BWP组切换。在此进行说明：
其一，当所述目标BWP组的指示信息为所述目标BWP组的标识信息时，若检测到当前所在的BWP组的标识信息和所述目标BWP组的标识信息不同，则将所述终端由当前所在的BWP组切换至所述目标BWP组。
具体的，当目标BWP组的指示信息为目标BWP组的标识信息时，终端可以通过目标BWP组的标识信息判断是否进行BWP组切换，即可以检测该目标BWP组的标识信息与当前所在的BWP组的标识信息是否相同，此时若检测到不同，则可以将终端由当前所在的BWP组切换至目标BWP组，从而实现小区的切换。
其二，当所述目标BWP组的指示信息为所述BWP的标识信息时，根据预先配置的每个BWP的标识信息与每个BWP组的标识信息之间的对应关系，获取所述BWP所对应的BWP组；将所述BWP所对应的BWP组确定为目标BWP组，并在检测到当前所在的BWP组的标识信息和所述目标BWP组的标识信息不同时，将所述终端由当前所在的BWP组切换至所述目标BWP组。
具体的，当目标BWP组的指示信息为BWP的标识信息时，可以确定基站已预先配置每个BWP的标识信息与每个BWP组的标识信息之间的对应关系，此时终端可以基于该对应关系获取到BWP所在的BWP组，并将该BWP组确定为目标BWP组；然后终端可以检测该目标BWP组的标识信息与当前所在的BWP组的标识信息是否相同，此时若检测到不同，则可以将终端由当前所在的BWP组切换至目标BWP组，从而实现小区的切换。
这样，终端根据目标BWP组的指示信息的不同，进行不同的BWP组切换过程，实现了BWP组的灵活切换。
另外，进一步地，在此还需要说明的是，BWP组切换消息中还可以携带有下述信息中的至少一个：所述目标BWP组内目标上行BWP和目标下行BWP的指示信息、目标BWP组内的上行资源分配信息以及上行定时 提前量。
当然在此需要说明的是，上述信息仅为BWP组切换消息中所携带信息的一种示例，还可以根据实际情况在BWP组切换消息中增加其他信息，在此并不对此进行具体限定。
下面针对上述信息进行说明。
针对目标上行BWP和目标下行BWP的指示信息进行说明。
其中，所述目标上行BWP和目标下行BWP的指示信息包括下述信息中的任意一种：所述目标上行BWP的标识信息和目标下行BWP的标识信息、所述目标上行BWP或目标下行BWP所对应的配对编号、所述目标上行BWP的标识信息或者所述目标下行BWP的标识信息。
具体的，当目标上行BWP和目标下行BWP的指示信息包括目标上行BWP的标识信息和目标下行BWP的标识信息时，终端可以直接根据目标上行BWP的标识信息和目标下行BWP的标识信息，确定目标BWP组内的待激活的目标上行BWP和目标下行BWP。
此外，当目标上行BWP和目标下行BWP的指示信息包括目标上行BWP或目标下行BWP所对应的配对编号时，此时基站已成对配置BWP组内的上下行BWP且配置相应的BWP配对编号，因此终端能够根据配对编号直接获取到成对配置的目标上行BWP和目标下行BWP。
另外，当目标上行BWP和目标下行BWP的指示信息包括目标上行BWP的标识信息或者所述目标下行BWP的标识信息时，此时基站已预先对每个BWP组内的上行BWP和下行BWP配置有对应关系，因此终端能够基于该对应关系，根据目标上行BWP的标识信息或目标下行BWP的标识信息，获取到相对应的目标下行BWP或目标上行BWP。
当然，在此还需要说明的是，若基站预先配置每个BWP中默认激活的上行BWP和下行BWP，则终端可以直接根据目标BWP组的指示信息，将目标BWP组中默认激活的上行BWP和下行BWP确定为目标上行BWP和目标下行BWP，即对目标上行BWP和目标下行BWP进行隐性指示。
此外，针对上行资源分配信息进行说明。
上行资源分配信息包括：所述目标BWP组中目标上行BWP内的物理上行共享信道PUSCH资源分配信息，或者所述目标BWP组内的物理随机 接入信道(Physical Random Access Channel，PRACH)资源信息；其中，所述PRACH资源信息包括频域资源信息和时域资源信息。
在此需要说明的是，针对该上行资源分配信息的具体介绍可以参见基站侧的具体实施例，在此不再进行过多赘述。
另外，进一步地，终端还可以根据BWP组切换消息中所携带信息的不同，来根据BWP组切换消息中所携带的信息，进行后续操作。下面对此进行具体说明。
其一，当BWP组切换消息中携带有所述目标BWP组内目标上行BWP和目标下行BWP的指示信息时，终端在根据所述目标BWP组的指示信息，将终端由当前所在的BWP组切换至所述目标BWP组之后，可以根据所述目标上行BWP和目标下行BWP的指示信息，将终端由当前所在的BWP组中的上行BWP切换至所述目标上行BWP，并由当前所在的BWP组中的下行BWP切换至所述目标下行BWP。
具体的，当BWP组切换消息中携带有目标上行BWP和目标下行BWP的指示信息时，即基站已指定待激活的上下行BWP，则终端需要根据该目标上行BWP和目标下行BWP的指示信息，分别将上行由当前所在的上行BWP切换至目标上行BWP，将下行由当前所在的下行BWP切换至目标下行BWP，以实现BWP组的切换过程。
其二，本实施例在根据所述目标BWP组的指示信息，将终端由当前所在的BWP组切换至所述目标BWP组之后，还可以在目标BWP组内发送上行信号。此时，具体的，可以根据上行资源分配信息的不同，选择不同的上行信号的发送方式。
例如，当所述BWP组切换消息中携带有上行资源分配信息，且所述上行资源分配信息为所述目标BWP组中目标上行BWP内的PUSCH资源分配信息时，可以在所述PUSCH资源分配信息所对应的PUSCH上发送上行数据。
再例如，当所述BWP组切换消息中携带有所述上行资源分配信息，且所述上行资源分配信息为所述目标BWP组内的PRACH资源信息时，可以在所述PRACH资源信息所对应的PRACH上发送随机接入前导码。
其三，当BWP组切换消息中携带有上行定时提前量时，终端在根据 所述目标BWP组的指示信息，将终端由当前所在的BWP组切换至所述目标BWP组之后，可以根据所述目标BWP组的下行定时和所述上行定时提前量，确定PUSCH的上行发送时间，并根据所述PUSCH的上行发送时间，进行PUSCH发送。
当然，在此需要说明的是，若BWP组切换消息中未携带有上行定时提前量，则可以根据自身维护的上行定时提前量来进行PUSCH的发送。
这样，终端根据BWP组切换消息中所携带的信息，在BWP组切换后，根据BWP组切换消息中携带的除目标BWP组的指示信息之外的其他信息，进行后续数据发送前的操作过程，保证了上行数据的正常发送。
这样，本实施例通过接收基站发送的携带有目标BWP组的指示信息的BWP组切换消息，并根据目标BWP组的指示信息将终端切换至目标BWP组，进而实现了通过BWP组的切换实现小区的切换，这相较于采用高层信令实现小区切换的方式，缩短了小区切换时延。
下面通过具体实施例对上述实施例进行说明。
如图3所示，假设基站为终端配置了4个BWP组，分别对应BWP组标识(ID)0-3，并在每个BWP内配置一个下行BWP(下行BWP ID0)和两个上行BWP(上行BWP ID0和上行BWP ID1)。此外，每个BWP组对应一个波束(小区)，即参见图3，BWP组ID0对应波束1，BWP组ID1对应波束2，BWP组ID2对应波束3，BWP组ID3对应波束4。另外，不同BWP组内的BWP的频域位置可以相对一个参考RB位置进行配置，也可以参考不同的参考RB位置进行配置，例如各自参考所对应的波束的起始RB位置。
此时假设终端当前工作在波束1(BWP组ID0)的下行BWP ID0和上行BWP ID1。当基站确定终端需要从波束1切换到波束2时，则可以向终端发送BWP组切换消息。
下面以基站通过MAC层消息向终端发送BWP组切换消息为例进行说明。
假设基站在BWP组ID0的下行BWP ID0对应的资源中发送PDSCH，PDSCH承载的MAC消息中携带了BWP组切换消息。其中BWP组切换消息中包括如下指示信息：目标BWP组ID为1，目标下行BWP ID为0， 目标上行BWP ID为0，指示BWP组ID1中的上行BWP ID0内的PUSCH资源分配或PARCH资源，且指示PUSCH发送的上行定时提前量。
此时，终端接收并解析基站发送的BWP组切换消息。可选地，终端在BWP组ID1对应的下行资源上进行时间和/或频率同步，例如通过BWP组ID1中的SSB或者下行参考信号进行下行时间和/或频率同步。
终端按照该BWP组切换消息，切换BWP组。具体的，将下行从BWP组ID0的下行BWP ID0切换到BWP组ID1的下行BWP ID0，上行从BWP组ID0的上行BWP ID1切换到BWP组ID1的上行BWP ID0。此外，终端根据BWP组ID1的下行定时以及BWP组切换消息中的上行定时提前量确定PUSCH的上行发送时间，并在所指示的PUSCH资源上发送上行数据，或者在所指示的BWP组ID1的PRACH资源上发送随机接入前导码。
然后，基站通过在BWP组ID1的上行BWP ID0内的PUSCH上，接收到上行数据，判定终端成功切换至目标BWP组；或者，基站通过在BWP组ID1的PRACH资源上接收到终端发送的随机接入前导码，判定终端成功切换至目标BWP组。
下面再以基站通过物理层消息中的DCI消息向终端发送BWP组切换消息为例进行说明。
假设基站在配置BWP组时，同时配置了默认激活的上行BWP和下行BWP，假设均为BWP ID0。此外，BWP组切换消息中携带以下指示信息：目标BWP组的ID为1，指示BWP组ID1中的上行BWP ID0内的PUSCH资源分配。
此时，终端接收并解析基站发送的BWP组切换消息。可选地，终端在BWP组ID1对应的下行资源上进行时间和/或频率同步，例如通过BWP组ID1中的SSB或者下行参考信号进行下行时间和/或频率同步。
终端按照该BWP组切换消息，切换BWP组至BWP组ID1，并进一步切换至BWP组ID1中的上下行BWP ID0。此外，终端根据BWP组ID1的下行定时以及自身维护的上行定时提前量确定PUSCH发送的上行定时提前量，并在所指示的PUSCH资源上发送上行数据。此时基站通过在BWP组ID1的上行BWP ID0内的PUSCH上，接收到上行数据，判定终端成功切换至目标BWP组。
这样，本实施例中，基站在确定终端需要进行小区切换时，向终端发送BWP组切换消息，且该BWP组切换消息中携带有目标BWP组的指示信息，然后终端根据目标BWP组的指示信息进行BWP组切换，实现了通过BWP组的切换实现小区的切换，这相较于采用高层信令实现小区切换的方式，缩短了小区切换时延。
此外，如图4所示，为本申请实施例中BWP组切换装置的模块框图之一，该BWP组切换装置包括：
发送模块401，配置成向所述终端发送带宽部分BWP组切换消息，所述BWP组切换消息中携带有目标BWP组的指示信息；其中，
基站为所述终端预先配置有至少两个BWP组，每个BWP组中包括至少一个上行BWP和至少一个下行BWP；所述目标BWP组为基站从所述至少两个BWP组中进行选择得到。
此外，如图5所示，为本申请实施例中BWP组切换装置的模块框图之二，该BWP组切换装置包括：
接收模块501，配置成接收基站发送的带宽部分BWP组切换消息，所述BWP组切换消息中携带有目标BWP组的指示信息；
切换模块502，配置成根据所述目标BWP组的指示信息，将终端由当前所在的BWP组切换至所述目标BWP组；其中，
所述基站为所述终端预先配置有至少两个BWP组，每个BWP组中包括至少一个上行BWP和至少一个下行BWP，所述目标BWP组为所述至少两个BWP组中的其中一个。
另外，如图6所示，为本申请实施例提供的基站或终端的实体结构示意图，该电子设备可以包括：处理器(processor)610、通信接口(Communications Interface)620、存储器(memory)630和通信总线640，其中，处理器610，通信接口620，存储器630通过通信总线640完成相互间的通信。处理器610可以调用存储在存储器630上并可在处理器610上运行的计算机程序，以执行上述各实施例提供的方法，例如包括：向所述终端发送带宽部分BWP组切换消息，所述BWP组切换消息中携带有目标BWP组的指示信息；其中，基站为所述终端预先配置有至少两个BWP组，每个BWP组中包括至少一个上行BWP和至少一个下行BWP；所述目标 BWP组为基站从所述至少两个BWP组中进行选择得到。
可选地，每个BWP组对应一个不同的小区。
可选地，所述向所述终端发送带宽部分BWP组切换消息，包括：当确定终端需要进行小区切换时，向所述终端发送所述BWP组切换消息。
可选地，所述向所述终端发送带宽部分BWP组切换消息，包括：通过物理层消息、媒体接入控制MAC层消息或无线资源控制RR层消息，向所述终端发送所述BWP组切换消息。
可选地，所述目标BWP组的指示信息包括所述目标BWP组的标识信息；或者，当基站预先配置每个BWP的标识信息与每个BWP组的标识信息之间的对应关系时，所述目标BWP组的指示信息包括，所述目标BWP组的标识信息或所述目标BWP组所对应的任意一个BWP的标识信息。
可选地，所述BWP组切换消息中还携带有下述信息中的至少一个：所述目标BWP组内目标上行BWP和目标下行BWP的指示信息、目标BWP组内的上行资源分配信息以及上行定时提前量。
可选地，所述目标上行BWP和目标下行BWP的指示信息包括，所述目标上行BWP的标识信息和目标下行BWP的标识信息；或者，当基站预先指示每个BWP组中默认激活的上行BWP和下行BWP时，将所述目标BWP组的指示信息确定为所述目标上行BWP和目标下行BWP的指示信息；或者，当基站预先对每个BWP组内的上行BWP和下行BWP进行成对配置，且设置有配对编号时，所述目标上行BWP和目标下行BWP的指示信息包括，所述目标上行BWP或目标下行BWP所对应的配对编号；或者，当基站预先对每个BWP组内的上行BWP和下行BWP配置有对应关系时，所述目标上行BWP和目标下行BWP的指示信息包括，所述目标上行BWP的标识信息或目标下行BWP的标识信息。
可选地，所述上行资源分配信息包括：所述目标BWP组中目标上行BWP内的物理上行共享信道PUSCH资源分配信息，或者所述目标BWP组内的物理随机接入信道PRACH资源信息。
可选地，所述向所述终端发送带宽部分BWP组切换消息之前，所述处理器执行所述程序时还实现如下步骤：为所述终端配置至少两个BWP组，具体包括：基于相同的预设参考资源块RB位置，对所述至少两个BWP 组内每个BWP的频域位置进行配置；或者，基于不同的预设参考RB位置，对每个BWP组内BWP的频域位置进行配置。
可选地，所述向所述终端发送带宽部分BWP组切换消息之后，所述处理器执行所述程序时还实现如下步骤：接收所述终端在所述目标BWP组内发送的上行信号；根据所述上行信号，确定终端由当前所在的BWP组成功切换至所述目标BWP组。
可选地，所述接收所述终端在所述目标BWP组内发送的上行信号，包括：接收所述终端在所述目标BWP组中目标上行BWP内的PUSCH上，所发送的上行数据；或者，接收所述终端在所述目标BWP组的PRACH上所发送的随机接入前导码。
还例如包括：接收基站发送的带宽部分BWP组切换消息，所述BWP组切换消息中携带有目标BWP组的指示信息；根据所述目标BWP组的指示信息，将终端由当前所在的BWP组切换至所述目标BWP组；其中，所述基站为所述终端预先配置有至少两个BWP组，每个BWP组中包括至少一个上行BWP和至少一个下行BWP，所述目标BWP组为所述至少两个BWP组中的其中一个。
可选地，每个BWP组对应一个不同的小区。
可选地，所述接收基站发送的带宽部分BWP组切换消息，包括：通过物理层消息或媒体接入控制MAC层消息，接收所述基站发送的BWP组切换消息。
可选地，所述目标BWP组的指示信息包括，所述目标BWP组的标识信息或者所述目标BWP组所对应的任意一个BWP的标识信息。
可选地，所述根据所述目标BWP组的指示信息，将终端由当前所在的BWP组切换至所述目标BWP组，包括：当所述目标BWP组的指示信息为所述目标BWP组的标识信息时，若检测到当前所在的BWP组的标识信息和所述目标BWP组的标识信息不同，则将所述终端由当前所在的BWP组切换至所述目标BWP组；或者，当所述目标BWP组的指示信息为所述BWP的标识信息时，根据预先配置的每个BWP的标识信息与每个BWP组的标识信息之间的对应关系，获取所述BWP所对应的BWP组；将所述BWP所对应的BWP组确定为目标BWP组，并在检测到当前所在 的BWP组的标识信息和所述目标BWP组的标识信息不同时，将所述终端由当前所在的BWP组切换至所述目标BWP组。
可选地，所述BWP组切换消息中还携带有下述信息中的至少一个：所述目标BWP组内目标上行BWP和目标下行BWP的指示信息、目标BWP组内的上行资源分配信息以及上行定时提前量。
可选地，所述目标上行BWP和目标下行BWP的指示信息包括下述信息中的任意一种：所述目标上行BWP的标识信息和目标下行BWP的标识信息、所述目标上行BWP或目标下行BWP所对应的配对编号、所述目标上行BWP的标识信息或者所述目标下行BWP的标识信息。
可选地，当所述BWP组切换消息中携带有所述目标BWP组内目标上行BWP和目标下行BWP的指示信息时，在所述根据所述目标BWP组的指示信息，将终端由当前所在的BWP组切换至所述目标BWP组之后，所述处理器执行所述程序时还实现如下步骤：根据所述目标上行BWP和目标下行BWP的指示信息，将终端由当前所在的BWP组中的上行BWP切换至所述目标上行BWP，并由当前所在的BWP组中的下行BWP切换至所述目标下行BWP。
可选地，所述上行资源分配信息包括：所述目标BWP组中目标上行BWP内的物理上行共享信道PUSCH资源分配信息，或者所述目标BWP组内的物理随机接入信道PRACH资源信息。
可选地，在所述根据所述目标BWP组的指示信息，将终端由当前所在的BWP组切换至所述目标BWP组之后，所述处理器执行所述程序时还实现如下步骤：在所述目标BWP组内发送上行信号。
可选地，所述在所述目标BWP组内发送上行信号，包括：当所述BWP组切换消息中携带有所述上行资源分配信息，且所述上行资源分配信息为所述目标BWP组中目标上行BWP内的PUSCH资源分配信息时，在所述PUSCH资源分配信息所对应的PUSCH上发送上行数据；或者，当所述BWP组切换消息中携带有所述上行资源分配信息，且所述上行资源分配信息为所述目标BWP组内的PRACH资源信息时，在所述PRACH资源信息所对应的PRACH上发送随机接入前导码。
可选地，当所述BWP组切换消息中携带有所述上行定时提前量时， 在所述根据所述目标BWP组的指示信息，将终端由当前所在的BWP组切换至所述目标BWP组之后，所述处理器执行所述程序时还实现如下步骤：根据所述目标BWP组的下行定时和所述上行定时提前量，确定PUSCH的上行发送时间；根据所述PUSCH的上行发送时间，进行PUSCH发送。
可选地，所述接收基站发送的带宽部分BWP组切换消息之后，所述处理器执行所述程序时还实现如下步骤：根据所述目标BWP组的指示信息，在所述目标BWP组所对应的下行资源上进行时间和/或频率同步。
此外，上述的存储器630中的逻辑指令可以通过软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
本申请实施例还提供一种非暂态计算机可读存储介质，其上存储有计算机程序，该计算机程序被处理器执行时实现以执行上述各实施例提供的方法，例如包括：向所述终端发送带宽部分BWP组切换消息，所述BWP组切换消息中携带有目标BWP组的指示信息；其中，基站为所述终端预先配置有至少两个BWP组，每个BWP组中包括至少一个上行BWP和至少一个下行BWP；所述目标BWP组为基站从所述至少两个BWP组中进行选择得到。再例如包括：接收基站发送的带宽部分BWP组切换消息，所述BWP组切换消息中携带有目标BWP组的指示信息；根据所述目标BWP组的指示信息，将终端由当前所在的BWP组切换至所述目标BWP组；其中，所述基站为所述终端预先配置有至少两个BWP组，每个BWP组中包括至少一个上行BWP和至少一个下行BWP，所述目标BWP组为所述至少两个BWP组中的其中一个。
以上所描述的装置实施例仅仅是示意性的，其中所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以 是或者也可以不是物理单元，即可以位于一个位置，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。基于本申请公开内容，本领域普通技术人员在不付出创造性的劳动的情况下，即可以理解并实施本申请公开的技术方案。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到各实施方式可借助软件结合所需的通用硬件平台的方式来实现，当然也可以通过硬件来实现。由此，本申请的一个实施例提供一种计算机软件产品，该计算机软件产品可以存储在计算机可读存储介质中，如ROM/RAM、磁碟、光盘等，包括若干指令用以使得一台计算机设备(例如，个人计算机，服务器，或者网络设备等)执行各个实施例或者实施例的某些部分所述的方法。
最后应说明的是：以上实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围。
Claims (51)
- 一种BWP组切换方法，其特征在于，所述BWP组切换方法包括：当确定终端需要进行小区切换时，向所述终端发送带宽部分BWP组切换消息，所述BWP组切换消息中携带有目标BWP组的指示信息；其中，基站为所述终端预先配置有至少两个BWP组，每个BWP组中包括至少一个上行BWP和至少一个下行BWP；所述目标BWP组为基站从所述至少两个BWP组中进行选择得到。
- 根据权利要求1所述的BWP组切换方法，其特征在于，每个BWP组对应一个不同的小区。
- 根据权利要求1所述的BWP组切换方法，其特征在于，所述向所述终端发送带宽部分BWP组切换消息，包括：当确定终端需要进行小区切换时，向所述终端发送所述BWP组切换消息。
- 根据权利要求1所述的BWP组切换方法，其特征在于，所述向所述终端发送带宽部分BWP组切换消息，包括：通过物理层消息、媒体接入控制MAC层消息或无线资源控制RRC层消息，向所述终端发送所述BWP组切换消息。
- 根据权利要求1所述的BWP组切换方法，其特征在于，所述目标BWP组的指示信息包括所述目标BWP组的标识信息；或者，当基站预先配置每个BWP的标识信息与每个BWP组的标识信息之间的对应关系时，所述目标BWP组的指示信息包括，所述目标BWP组的标识信息或所述目标BWP组所对应的任意一个BWP的标识信息。
- 根据权利要求1所述的BWP组切换方法，其特征在于，所述BWP组切换消息中还携带有下述信息中的至少一个：所述目标BWP组内目标上行BWP和目标下行BWP的指示信息、目标BWP组内的上行资源分配信息以及上行定时提前量。
- 根据权利要求6所述的BWP组切换方法，其特征在于，所述目标上行BWP和目标下行BWP的指示信息包括，所述目标上行BWP的标识信息和目标下行BWP的标识信息；或者，当基站预先指示每个BWP组中默认激活的上行BWP和下行BWP时， 将所述目标BWP组的指示信息确定为所述目标上行BWP和目标下行BWP的指示信息；或者，当基站预先对每个BWP组内的上行BWP和下行BWP进行成对配置，且设置有配对编号时，所述目标上行BWP和目标下行BWP的指示信息包括，所述目标上行BWP或目标下行BWP所对应的配对编号；或者，当基站预先对每个BWP组内的上行BWP和下行BWP配置有对应关系时，所述目标上行BWP和目标下行BWP的指示信息包括，所述目标上行BWP的标识信息或目标下行BWP的标识信息。
- 根据权利要求6所述的BWP组切换方法，其特征在于，所述上行资源分配信息包括：所述目标BWP组中目标上行BWP内的物理上行共享信道PUSCH资源分配信息，或者所述目标BWP组内的物理随机接入信道PRACH资源信息。
- 根据权利要求1所述的BWP组切换方法，其特征在于，所述向所述终端发送带宽部分BWP组切换消息之前，还包括：为所述终端配置至少两个BWP组，具体包括：基于相同的预设参考资源块RB位置，对所述至少两个BWP组内每个BWP的频域位置进行配置；或者，基于不同的预设参考RB位置，对每个BWP组内BWP的频域位置进行配置。
- 根据权利要求1所述的BWP组切换方法，其特征在于，所述向所述终端发送带宽部分BWP组切换消息之后，还包括：接收所述终端在所述目标BWP组内发送的上行信号；根据所述上行信号，确定终端由当前所在的BWP组成功切换至所述目标BWP组。
- 根据权利要求10所述的BWP组切换方法，其特征在于，所述接收所述终端在所述目标BWP组内发送的上行信号，包括：接收所述终端在所述目标BWP组中目标上行BWP内的PUSCH上，所发送的上行数据；或者，接收所述终端在所述目标BWP组的PRACH上所发送的随机接入前导码。
- 一种BWP组切换方法，其特征在于，所述BWP切换方法包括：接收基站发送的带宽部分BWP组切换消息，所述BWP组切换消息中携带有目标BWP组的指示信息；根据所述目标BWP组的指示信息，将终端由当前所在的BWP组切换至所述目标BWP组；其中，所述基站为所述终端预先配置有至少两个BWP组，每个BWP组中包括至少一个上行BWP和至少一个下行BWP，所述目标BWP组为所述至少两个BWP组中的其中一个。
- 根据权利要求12所述的BWP组切换方法，其特征在于，每个BWP组对应一个不同的小区。
- 根据权利要求12所述的BWP组切换方法，其特征在于，所述接收基站发送的带宽部分BWP组切换消息，包括：通过物理层消息、媒体接入控制MAC层消息或无线资源控制RRC层消息，接收所述基站发送的BWP组切换消息。
- 根据权利要求12所述的BWP组切换方法，其特征在于，所述目标BWP组的指示信息包括，所述目标BWP组的标识信息或者所述目标BWP组所对应的任意一个BWP的标识信息。
- 根据权利要求15所述的BWP组切换方法，其特征在于，所述根据所述目标BWP组的指示信息，将终端由当前所在的BWP组切换至所述目标BWP组，包括：当所述目标BWP组的指示信息为所述目标BWP组的标识信息时，若检测到当前所在的BWP组的标识信息和所述目标BWP组的标识信息不同，则将所述终端由当前所在的BWP组切换至所述目标BWP组；或者，当所述目标BWP组的指示信息为所述BWP的标识信息时，根据预先配置的每个BWP的标识信息与每个BWP组的标识信息之间的对应关系，获取所述BWP所对应的BWP组；将所述BWP所对应的BWP组确定为目标BWP组，并在检测到当前所在的BWP组的标识信息和所述目标BWP组的标识信息不同时，将所述终端由当前所在的BWP组切换至所述目标BWP组。
- 根据权利要求12所述的BWP组切换方法，其特征在于，所述 BWP组切换消息中还携带有下述信息中的至少一个：所述目标BWP组内目标上行BWP和目标下行BWP的指示信息、目标BWP组内的上行资源分配信息以及上行定时提前量。
- 根据权利要求17所述的BWP组切换方法，其特征在于，所述目标上行BWP和目标下行BWP的指示信息包括下述信息中的任意一种：所述目标上行BWP的标识信息和目标下行BWP的标识信息、所述目标上行BWP或目标下行BWP所对应的配对编号、所述目标上行BWP的标识信息或者所述目标下行BWP的标识信息。
- 根据权利要求17所述的BWP组切换方法，其特征在于，当所述BWP组切换消息中携带有所述目标BWP组内目标上行BWP和目标下行BWP的指示信息时，在所述根据所述目标BWP组的指示信息，将终端由当前所在的BWP组切换至所述目标BWP组之后，还包括：根据所述目标上行BWP和目标下行BWP的指示信息，将终端由当前所在的BWP组中的上行BWP切换至所述目标上行BWP，并由当前所在的BWP组中的下行BWP切换至所述目标下行BWP。
- 根据权利要求17所述的BWP组切换方法，其特征在于，所述上行资源分配信息包括：所述目标BWP组中目标上行BWP内的物理上行共享信道PUSCH资源分配信息，或者所述目标BWP组内的物理随机接入信道PRACH资源信息。
- 根据权利要求20所述的BWP组切换方法，其特征在于，在所述根据所述目标BWP组的指示信息，将终端由当前所在的BWP组切换至所述目标BWP组之后，还包括：在所述目标BWP组内发送上行信号。
- 根据权利要求21所述的BWP组切换方法，其特征在于，所述在所述目标BWP组内发送上行信号，包括：当所述BWP组切换消息中携带有所述上行资源分配信息，且所述上行资源分配信息为所述目标BWP组中目标上行BWP内的PUSCH资源分配信息时，在所述PUSCH资源分配信息所对应的PUSCH上发送上行数据；或者，当所述BWP组切换消息中携带有所述上行资源分配信息，且所述上 行资源分配信息为所述目标BWP组内的PRACH资源信息时，在所述PRACH资源信息所对应的PRACH上发送随机接入前导码。
- 根据权利要求17所述的BWP组切换方法，其特征在于，当所述BWP组切换消息中携带有所述上行定时提前量时，在所述根据所述目标BWP组的指示信息，将终端由当前所在的BWP组切换至所述目标BWP组之后，还包括：根据所述目标BWP组的下行定时和所述上行定时提前量，确定PUSCH的上行发送时间；根据所述PUSCH的上行发送时间，进行PUSCH发送。
- 根据权利要求12所述的BWP组切换方法，其特征在于，所述接收基站发送的带宽部分BWP组切换消息之后，还包括：根据所述目标BWP组的指示信息，在所述目标BWP组所对应的下行资源上进行时间和/或频率同步。
- 一种BWP组切换装置，其特征在于，所述BWP组切换装置包括：发送模块，配置成向终端发送带宽部分BWP组切换消息，所述BWP组切换消息中携带有目标BWP组的指示信息；其中，基站为所述终端预先配置有至少两个BWP组，每个BWP组中包括至少一个上行BWP和至少一个下行BWP；所述目标BWP组为基站从所述至少两个BWP组中进行选择得到。
- 一种BWP组切换装置，其特征在于，所述BWP组切换装置包括：接收模块，配置成接收基站发送的带宽部分BWP组切换消息，所述BWP组切换消息中携带有目标BWP组的指示信息；切换模块，配置成根据所述目标BWP组的指示信息，将终端由当前所在的BWP组切换至所述目标BWP组；其中，所述基站为所述终端预先配置有至少两个BWP组，每个BWP组中包括至少一个上行BWP和至少一个下行BWP，所述目标BWP组为所述至少两个BWP组中的其中一个。
- 一种基站，包括存储器、处理器及存储在存储器上并可在处理器上运行的程序，其特征在于，所述处理器执行所述程序时实现如下步骤：当确定终端需要进行小区切换时，向所述终端发送带宽部分BWP组 切换消息，所述BWP组切换消息中携带有目标BWP组的指示信息；其中，基站为所述终端预先配置有至少两个BWP组，每个BWP组中包括至少一个上行BWP和至少一个下行BWP；所述目标BWP组为基站从所述至少两个BWP组中进行选择得到。
- 根据权利要求27所述的基站，其特征在于，每个BWP组对应一个不同的小区。
- 根据权利要求27所述的基站，其特征在于，所述向所述终端发送带宽部分BWP组切换消息，包括：当确定终端需要进行小区切换时，向所述终端发送所述BWP组切换消息。
- 根据权利要求27所述的基站，其特征在于，所述向所述终端发送带宽部分BWP组切换消息，包括：通过物理层消息、或媒体接入控制MAC层消息或无线资源控制RRC层消息，向所述终端发送所述BWP组切换消息。
- 根据权利要求27所述的基站，其特征在于，所述目标BWP组的指示信息包括所述目标BWP组的标识信息；或者，当基站预先配置每个BWP的标识信息与每个BWP组的标识信息之间的对应关系时，所述目标BWP组的指示信息包括，所述目标BWP组的标识信息或所述目标BWP组所对应的任意一个BWP的标识信息。
- 根据权利要求27所述的基站，其特征在于，所述BWP组切换消息中还携带有下述信息中的至少一个：所述目标BWP组内目标上行BWP和目标下行BWP的指示信息、目标BWP组内的上行资源分配信息以及上行定时提前量。
- 根据权利要求32所述的基站，其特征在于，所述目标上行BWP和目标下行BWP的指示信息包括，所述目标上行BWP的标识信息和目标下行BWP的标识信息；或者，当基站预先指示每个BWP组中默认激活的上行BWP和下行BWP时，将所述目标BWP组的指示信息确定为所述目标上行BWP和目标下行BWP的指示信息；或者，当基站预先对每个BWP组内的上行BWP和下行BWP进行成对配置， 且设置有配对编号时，所述目标上行BWP和目标下行BWP的指示信息包括，所述目标上行BWP或目标下行BWP所对应的配对编号；或者，当基站预先对每个BWP组内的上行BWP和下行BWP配置有对应关系时，所述目标上行BWP和目标下行BWP的指示信息包括，所述目标上行BWP的标识信息或目标下行BWP的标识信息。
- 根据权利要求32所述的基站，其特征在于，所述上行资源分配信息包括：所述目标BWP组中目标上行BWP内的物理上行共享信道PUSCH资源分配信息，或者所述目标BWP组内的物理随机接入信道PRACH资源信息。
- 根据权利要求27所述的基站，其特征在于，所述向所述终端发送带宽部分BWP组切换消息之前，所述处理器执行所述程序时还实现如下步骤：为所述终端配置至少两个BWP组，具体包括：基于相同的预设参考资源块RB位置，对所述至少两个BWP组内每个BWP的频域位置进行配置；或者，基于不同的预设参考RB位置，对每个BWP组内BWP的频域位置进行配置。
- 根据权利要求27所述的基站，其特征在于，所述向所述终端发送带宽部分BWP组切换消息之后，所述处理器执行所述程序时还实现如下步骤：接收所述终端在所述目标BWP组内发送的上行信号；根据所述上行信号，确定终端由当前所在的BWP组成功切换至所述目标BWP组。
- 根据权利要求36所述的基站，其特征在于，所述接收所述终端在所述目标BWP组内发送的上行信号，包括：接收所述终端在所述目标BWP组中目标上行BWP内的PUSCH上，所发送的上行数据；或者，接收所述终端在所述目标BWP组的PRACH上所发送的随机接入前导码。
- 一种终端，包括存储器、处理器及存储在存储器上并可在处理器 上运行的程序，其特征在于，所述处理器执行所述程序时实现如下步骤：接收基站发送的带宽部分BWP组切换消息，所述BWP组切换消息中携带有目标BWP组的指示信息；根据所述目标BWP组的指示信息，将终端由当前所在的BWP组切换至所述目标BWP组；其中，所述基站为所述终端预先配置有至少两个BWP组，每个BWP组中包括至少一个上行BWP和至少一个下行BWP，所述目标BWP组为所述至少两个BWP组中的其中一个。
- 根据权利要求38所述的终端，其特征在于，每个BWP组对应一个不同的小区。
- 根据权利要求38所述的终端，其特征在于，所述接收基站发送的带宽部分BWP组切换消息，包括：通过物理层消息、媒体接入控制MAC层消息或无线资源控制RRC层消息，接收所述基站发送的BWP组切换消息。
- 根据权利要求38所述的终端，其特征在于，所述目标BWP组的指示信息包括，所述目标BWP组的标识信息或者所述目标BWP组所对应的任意一个BWP的标识信息。
- 根据权利要求41所述的终端，其特征在于，所述根据所述目标BWP组的指示信息，将终端由当前所在的BWP组切换至所述目标BWP组，包括：当所述目标BWP组的指示信息为所述目标BWP组的标识信息时，若检测到当前所在的BWP组的标识信息和所述目标BWP组的标识信息不同，则将所述终端由当前所在的BWP组切换至所述目标BWP组；或者，当所述目标BWP组的指示信息为所述BWP的标识信息时，根据预先配置的每个BWP的标识信息与每个BWP组的标识信息之间的对应关系，获取所述BWP所对应的BWP组；将所述BWP所对应的BWP组确定为目标BWP组，并在检测到当前所在的BWP组的标识信息和所述目标BWP组的标识信息不同时，将所述终端由当前所在的BWP组切换至所述目标BWP组。
- 根据权利要求38所述的终端，其特征在于，所述BWP组切换消 息中还携带有下述信息中的至少一个：所述目标BWP组内目标上行BWP和目标下行BWP的指示信息、目标BWP组内的上行资源分配信息以及上行定时提前量。
- 根据权利要求43所述的终端，其特征在于，所述目标上行BWP和目标下行BWP的指示信息包括下述信息中的任意一种：所述目标上行BWP的标识信息和目标下行BWP的标识信息、所述目标上行BWP或目标下行BWP所对应的配对编号、所述目标上行BWP的标识信息或者所述目标下行BWP的标识信息。
- 根据权利要求43所述的终端，其特征在于，当所述BWP组切换消息中携带有所述目标BWP组内目标上行BWP和目标下行BWP的指示信息时，在所述根据所述目标BWP组的指示信息，将终端由当前所在的BWP组切换至所述目标BWP组之后，所述处理器执行所述程序时还实现如下步骤：根据所述目标上行BWP和目标下行BWP的指示信息，将终端由当前所在的BWP组中的上行BWP切换至所述目标上行BWP，并由当前所在的BWP组中的下行BWP切换至所述目标下行BWP。
- 根据权利要求43所述的终端，其特征在于，所述上行资源分配信息包括：所述目标BWP组中目标上行BWP内的物理上行共享信道PUSCH资源分配信息，或者所述目标BWP组内的物理随机接入信道PRACH资源信息。
- 根据权利要求46所述的终端，其特征在于，在所述根据所述目标BWP组的指示信息，将终端由当前所在的BWP组切换至所述目标BWP组之后，所述处理器执行所述程序时还实现如下步骤：在所述目标BWP组内发送上行信号。
- 根据权利要求47所述的终端，其特征在于，所述在所述目标BWP组内发送上行信号，包括：当所述BWP组切换消息中携带有所述上行资源分配信息，且所述上行资源分配信息为所述目标BWP组中目标上行BWP内的PUSCH资源分配信息时，在所述PUSCH资源分配信息所对应的PUSCH上发送上行数据；或者，当所述BWP组切换消息中携带有所述上行资源分配信息，且所述上行资源分配信息为所述目标BWP组内的PRACH资源信息时，在所述PRACH资源信息所对应的PRACH上发送随机接入前导码。
- 根据权利要求43所述的终端，其特征在于，当所述BWP组切换消息中携带有所述上行定时提前量时，在所述根据所述目标BWP组的指示信息，将终端由当前所在的BWP组切换至所述目标BWP组之后，所述处理器执行所述程序时还实现如下步骤：根据所述目标BWP组的下行定时和所述上行定时提前量，确定PUSCH的上行发送时间；根据所述PUSCH的上行发送时间，进行PUSCH发送。
- 根据权利要求38所述的终端，其特征在于，所述接收基站发送的带宽部分BWP组切换消息之后，所述处理器执行所述程序时还实现如下步骤：根据所述目标BWP组的指示信息，在所述目标BWP组所对应的下行资源上进行时间和/或频率同步。
- 一种非暂态计算机可读存储介质，其上存储有计算机程序，其特征在于，该计算机程序被处理器执行时实现如权利要求1至24任一项所述的BWP组切换方法的步骤。
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