CN113068264A - Information processing method, device, base station equipment and communication system - Google Patents
Information processing method, device, base station equipment and communication system Download PDFInfo
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- CN113068264A CN113068264A CN202110352080.7A CN202110352080A CN113068264A CN 113068264 A CN113068264 A CN 113068264A CN 202110352080 A CN202110352080 A CN 202110352080A CN 113068264 A CN113068264 A CN 113068264A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
Abstract
The information processing method comprises the steps that the base station sends a BWP switching instruction to the terminal in response to the base station, the base station sends scheduling information to the terminal on the original BWP, the base station detects whether feedback information based on the scheduling information is received by the terminal, and if the feedback information is received by the base station, the base station continues to send the BWP switching instruction until the base station determines that the terminal correctly receives the BWP switching instruction. The base station judges whether the BWP switching instruction is correctly received by the terminal or not by sending the scheduling information, and if the terminal fails to receive, the BWP switching instruction can be rapidly sent again, so that the time delay influence of the BWP switching on the service scheduling of the terminal is reduced.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to an information processing method, an information processing apparatus, a base station device, and a communication system.
Background
In the New Radio (NR) system of the fifth generation mobile communication technology (5G), a concept of a partial Bandwidth (BWP) is introduced on the basis of a system bandwidth. The introduction of BWP is advantageous for controlling the cost and power consumption of the terminal device. Each UE (User Equipment) may configure multiple downlink BWPs and multiple uplink BWPs. The base station performs dynamic switching of BWP according to bandwidth requirements, service flow and the like of the UE, and adapts to different service requirements.
Among them, the BWP handover procedure based on RRC (Radio Resource Controller) is: when the UE receives a reconfiguration message of BWP handover sent by the base station, the UE enters a handover delay and carries out BWP handover processing according to BWP configuration information carried in the reconfiguration message and an activated BWP identification. In the BWP handover delay, the UE does not perform channel scheduling and transmission processing. When the switching delay is exceeded, the base station still does not receive the RRC reconfiguration completion message sent by the UE, and then the switching process based on the RRC is carried out again, so that the user service of the UE cannot be scheduled in time, and the service delay is prolonged.
Disclosure of Invention
In view of this, the present application provides the following technical solutions:
an information processing method comprising:
responding to a base station sending a partial bandwidth BWP switching instruction to a terminal, wherein the base station sends scheduling information to the terminal on an original BWP, and the BWP switching instruction is used for indicating the terminal to be switched from the original BWP to a target active BWP;
the base station detects whether feedback information based on the scheduling information of the terminal is received;
if yes, the base station continues to send the BWP switching instruction until the base station determines that the terminal correctly receives the BWP switching instruction.
Optionally, the determining, by the base station, that the BWP handover instruction is correctly received by the terminal includes:
and the base station does not receive the feedback information of the terminal based on the scheduling information, and determines that the terminal correctly receives the BWP switching instruction.
Optionally, the sending, by the base station, scheduling information to the terminal on the original BWP includes:
after responding to a target time period of a BWP switching instruction sent by a base station to a terminal, the base station sends scheduling information to the terminal on an original BWP, and the duration of the target time period is less than the BWP switching time delay of the terminal.
Optionally, the sending, by the base station, scheduling information to the terminal on the original BWP includes:
the base station continuously sends a plurality of uplink scheduling information to the terminal on the original BWP;
the determining that the terminal correctly receives the BWP handover instruction includes:
determining that the terminal correctly receives the BWP switching instruction in response to the base station not detecting feedback information of the uplink scheduling information based on an uplink shared channel.
Optionally, the method further comprises:
and in response to the terminal receiving the BWP switching instruction, switching to target active BWP, and sending the service data to the terminal on the target active BWP by the base station.
Optionally, the method further comprises:
the base station generates a BWP switching instruction of the terminal, and the BWP switching instruction comprises the following steps:
the base station monitors the service data transmission state of the terminal on the original BWP;
the base station determines a target activation BWP based on the service data transmission state;
generating a BWP handoff instruction matching the target active BWP.
Optionally, the method further comprises:
in response to the terminal correctly receiving the BWP handover instruction, the base station transmitting scheduling information to the terminal on the target active BWP after a BWP handover delay of the terminal;
and if the base station does not receive the feedback information which is transmitted by the terminal through the target activated BWP and corresponds to the scheduling information, the base station retransmits the BWP switching instruction.
An information processing apparatus comprising:
a sending unit, configured to send, in response to a base station sending a partial bandwidth BWP handover instruction to a terminal, where the base station sends scheduling information to the terminal on an original BWP, and the BWP handover instruction is used to instruct the terminal to switch from the original BWP to a target active BWP;
a detecting unit, configured to detect, by the base station, whether feedback information based on the scheduling information is received by the terminal;
a determining unit, configured to, if yes, continue sending the BWP handover command by the base station until the base station determines that the terminal correctly receives the BWP handover command.
A base station apparatus, comprising:
a memory for storing an application program and data generated by the application program running;
a processor for executing the application to implement:
responding to a base station sending a partial bandwidth BWP switching instruction to a terminal, wherein the base station sends scheduling information to the terminal on an original BWP, and the BWP switching instruction is used for indicating the terminal to be switched from the original BWP to a target active BWP;
the base station detects whether feedback information based on the scheduling information of the terminal is received;
if yes, the base station continues to send the BWP switching instruction until the base station determines that the terminal correctly receives the BWP switching instruction.
A communication system, comprising: a base station and a terminal;
the base station is configured to perform the partial bandwidth BWP handover method as described in any of the above;
the terminal is used for switching the original BWP to a target activation BWP if the BWP switching instruction is correctly received; and the base station is further configured to generate feedback information based on the scheduling information and send the feedback information to the base station if the BWP switching instruction is not received.
According to the technical scheme, the information processing method comprises the steps that the base station sends a BWP switching instruction to the terminal in response to the base station, the base station sends scheduling information to the terminal on the original BWP, the base station detects whether feedback information based on the scheduling information is received by the terminal, and if the feedback information is received by the base station, the base station continues sending the BWP switching instruction until the base station determines that the terminal correctly receives the BWP switching instruction. The base station judges whether the BWP switching instruction is correctly received by the terminal or not by sending the scheduling information, and if the terminal fails to receive, the BWP switching instruction can be rapidly sent again, so that the time delay influence of the BWP switching on the service scheduling of the terminal is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on the provided drawings without creative efforts.
Fig. 1 is a schematic flowchart of an information processing method according to an embodiment of the present application;
fig. 2 is a flowchart illustrating a BWP handover method according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of an information processing apparatus according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a base station device according to an embodiment of the present application;
fig. 5 is a signaling interaction diagram of a communication system according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
An embodiment of the present application provides an information processing method, which is applied to a BWP (Radio Resource Controller) handover procedure of a partial bandwidth of an RRC (Radio Resource Controller) in a 5G NR (New Radio). In 5G NR, a partial bandwidth BWP (bandwidth part) is introduced on the basis of a system bandwidth, each terminal (User Equipment, UE) may configure multiple downlink BWPs and multiple uplink BWPs, and a base station performs dynamic switching of BWPs according to a bandwidth requirement, a traffic flow, and the like of the terminal, so as to adapt to different traffic requirements. The BWP handover based on RRC is mainly used for switching the terminal to a new BWP after the RRC reconfiguration message is issued. Referring to fig. 1, there is shown a flow diagram of an information processing method, which may include the steps of:
s101, responding to a BWP switching instruction sent by the base station to the terminal, the base station sends scheduling information to the terminal on the original BWP.
The base station sends the BWP switching instruction to the terminal, which means that the base station sends BWP reconfiguration information based on RRC. The BWP switching instruction is used to instruct the terminal to switch from the original BWP to the target active BWP. The original BWP refers to the BWP before handover, and the target active BWP refers to the BWP after handover.
In the embodiment of the present application, after the base station sends the BWP handover command to the terminal, the base station sends the scheduling information to the terminal on the original BWP. If the terminal receives the BWP handover command, the terminal enters a handover delay, and the handover delay does not enable to transmit the feedback Information through the corresponding channel, so the base station determines whether the terminal receives the BWP handover command by sending scheduling Information, specifically, the scheduling Information is Information that the terminal can receive on the original BWP, for example, the scheduling Information may include DCI (Downlink Control Information).
S102, the base station detects whether feedback information based on the scheduling information of the terminal is received.
S103, if yes, the base station continues to send the BWP switching instruction until the base station determines that the terminal correctly receives the BWP switching instruction.
If the terminal can receive the scheduling information and can generate feedback information corresponding to the scheduling information, it indicates that the terminal does not execute the BWP switching instruction, i.e., the terminal does not receive the BWP switching instruction. The base station immediately sends the BWP switching instruction again after receiving the feedback information without waiting for the time corresponding to the BWP switching delay and then sending the BWP switching instruction again.
It should be noted that, in the embodiment of the present application, each time the base station sends the BWP handover command, the base station sends scheduling information to the terminal on the original BWP, so as to determine whether the base station can receive feedback information generated by the terminal, so as to determine whether the base station correctly receives the BWP handover command. If the base station does not receive the feedback information based on the scheduling information from the terminal, it proves that the terminal has received the BWP handover command, and then the terminal will respond to the BWP handover command and enter the BWP handover delay, i.e. enter the BWP handover processing flow.
In an embodiment of the present application, the base station may set the number of times the base station retransmits the BWP handover command, and if it is not determined that the terminal correctly receives the BWP handover command, the base station may continue to transmit the BWP handover command, but in order to ensure the processing timeliness, the number of times the base station retransmits the BWP handover command may be set to, for example, 3 times, that is, when the terminal does not correctly receive the BWP handover command, the number of times the base station retransmits the BWP handover command does not exceed 3 times, and if the terminal does not correctly receive the BWP handover command after transmitting 3 times, it is determined that the terminal cannot respond to the BWP handover command, and the corresponding failure information may be generated, or it may be determined that a new target active BWP generates a BWP corresponding to the new target active BWP and retransmits the BWP.
The embodiment of the application provides an information processing method, which includes that a base station sends a BWP switching instruction to a terminal in response to the base station, the base station sends scheduling information to the terminal on the original BWP, the base station detects whether feedback information based on the scheduling information is received by the terminal, and if the feedback information is received by the base station, the base station continues to send the BWP switching instruction until the base station determines that the terminal correctly receives the BWP switching instruction. The base station judges whether the BWP switching instruction is correctly received by the terminal or not by sending the scheduling information, and if the terminal fails to receive, the BWP switching instruction can be rapidly sent again, so that the time delay influence of the BWP switching on the service scheduling of the terminal is reduced.
In a possible embodiment, the determining, by the base station, that the BWP handover instruction is correctly received by the terminal includes: and the base station does not receive the feedback information of the terminal based on the scheduling information, and determines that the terminal correctly receives the BWP switching instruction.
In this embodiment, when the base station sends the BWP handover command to the terminal, the normal processing mode is that the terminal enters the BWP handover processing procedure, and the terminal does not receive uplink and downlink scheduling during the handover delay, that is, if the terminal receives the BWP handover command, the terminal will execute the BWP handover processing procedure to enter the handover delay. Therefore, in the embodiment of the present application, after the BWP switching instruction is sent, the terminal sends the corresponding scheduling information, and if the terminal receives the BWP switching instruction and executes the BWP switching process, the terminal does not perform feedback on the scheduling information, and if the terminal does not receive the BWP switching instruction, the terminal generates corresponding feedback information in response to the scheduling information. Therefore, in this embodiment, when the base station does not receive the feedback information of the terminal based on the scheduling information, it is determined that the terminal correctly receives the BWP handover instruction, enters the handover procedure, and does not receive the uplink and downlink scheduling information.
In another embodiment, the number of times that the base station retransmits the BWP handover command may be a fixed value, that is, if the base station receives the feedback information of the terminal based on the scheduling information, the base station continues to transmit the BWP handover command, and if the base station can also receive the feedback information of the terminal based on the scheduling information, the base station retransmits the BWP handover command until the target number of times is reached, the base station defaults that the terminal receives the BWP handover command, and then after a handover delay, transmits the service data to the terminal on the target active BWP, if data corresponding to the service data fed back by the terminal is received, the terminal is proved to have correctly handed over to the target active BWP, and if the data corresponding to the service data fed back by the terminal is not received, the terminal is proved to have not received the BWP handover command, and the failure.
In the NR protocol, a handover delay is defined to be composed of an RRC reconfiguration message processing delay (10ms) and a BWP handover delay (6ms), and during implementation, an air interface delay of scheduling needs to be considered, where the actual delay is greater than 20 ms. And in the switching time delay, the terminal does not carry out scheduling and transmission processing on the PDCCH/PDSCH/PUCCH/PUSCH channels. If the terminal is determined to correctly receive the BWP handover command after waiting for the handover delay, the service delay will be lengthened. The PDCCH channel transmits downlink control information, the PDSCH channel transmits downlink service data, the PUCCH channel is mainly used for transmitting uplink control information, and the PUSCH channel is mainly used for transmitting uplink service information.
Therefore, in this embodiment of the present application, the sending, by the base station, scheduling information to the terminal on the original BWP includes:
after responding to a target time period of a BWP switching instruction sent by a base station to a terminal, the base station sends scheduling information to the terminal on an original BWP, and the duration of the target time period is less than the BWP switching time delay of the terminal.
In this embodiment, in order to reduce the traffic delay, the scheduling information is sent within a duration shorter than the handover delay, so as to solve the problem of the elongated traffic delay that the terminal must wait for the handover delay to confirm whether the BWP handover is successfully completed. Meanwhile, it should be noted that the target time period cannot be set to be too small, which results in that the terminal has no time to reflect whether there is a BWP switching instruction.
In an implementable manner of the embodiment of the present application, the sending, by the base station, scheduling information to the terminal on the original BWP includes:
the base station continuously sends a plurality of uplink scheduling information to the terminal on the original BWP;
the determining that the terminal correctly receives the BWP handover instruction includes:
determining that the terminal correctly receives the BWP switching instruction in response to the base station not detecting feedback information of the uplink scheduling information based on an uplink shared channel.
In this embodiment, the base station continuously sends N uplink DCI schedules to the terminal, and when the base station receives no signal detected by decoding the PUSCH (mainly used for transmitting uplink data traffic), the terminal is considered to have successfully received the BWP handover instruction, that is, the BWP handover reconfiguration message is received.
Specifically, after the base station sends the uplink DCI scheduling information to the terminal, the base station may detect whether feedback information of the uplink scheduling information fed back by the terminal, that is, a signal of the uplink scheduling service information, is received on the original BWP, and if so, it indicates that the terminal does not receive the downlink control instruction indicating BWP switching, the base station continues to send the uplink DCI scheduling information to the terminal on the original BWP until it is determined that the terminal receives the switching instruction indicating BWP switching.
Based on the above embodiments, if the terminal correctly receives the BWP switching command, the terminal enters the BWP switching process flow, that is, the terminal switches to the target active BWP. The base station then transmits traffic data to the terminal on the target active BWP.
The embodiment of the present application further provides a method for determining that a target activates BWP, where the method is that a base station generates a BWP handover command for a terminal, and includes:
the base station monitors the service data transmission state of the terminal on the original BWP;
the base station determines a target activation BWP based on the service data transmission state;
generating a BWP handoff instruction matching the target active BWP.
In this embodiment, the attribute characteristics of the BWP include BWP received signal strength parameters, BWP channel occupancy, and BWP channel busy rate. When the terminal performs service data transmission on the original BWP, the attribute characteristics may be monitored, that is, the service data transmission state is obtained, and then it is determined whether the data transmission is congested based on the current service data transmission state, if so, the BWP better than the current BWP is selected as a target to activate the BWP, and then a BWP switching instruction corresponding to the target is generated.
In the embodiment of the present application, a method for preventing BWP mis-handover is further provided, that is, in response to that the terminal correctly receives the BWP handover instruction, after a BWP handover delay of the terminal, the base station sends scheduling information to the terminal on the target active BWP; and if the base station does not receive the feedback information which is transmitted by the terminal through the target activated BWP and corresponds to the scheduling information, the base station retransmits the BWP switching instruction.
In this embodiment, although the terminal receives the BWP switching command, there may be decoding errors in the terminal decoding the switching command, which may result in the terminal switching to a BWP that is not compliant with the BWP switching command, i.e., not targeting the active BWP. At this time, in order to determine whether the terminal is handed over to the target active BWP, the base station may send scheduling information on the target active BWP, prove that the terminal has handed over to the target active BWP if receiving the corresponding feedback information, and prove that the terminal has not handed over to the target active BWP if not receiving the corresponding feedback information, and at this time, the base station resends the BWP handover command so that the terminal can handover to the target active BWP. It is also possible to re-determine an active BWP and then generate a handover command instructing the terminal to handover to the new BWP.
The embodiment of the application realizes the method for reducing the influence of the RRC-based BWP switching on the user service delay. As the BWP switching reconfiguration message is a key point for RRC-based BWP switching, a successful scheduling transition state of the BWP switching reconfiguration message is added in the MAC layer, and whether the terminal receives the BWP switching configuration message is judged according to a detected uplink DCI scheduling result. Whether the BWP switching reconfiguration message based on the RRC is correctly received by the terminal can be rapidly judged by detecting the uplink DCI scheduling result. When the BWP switching reconfiguration message based on the RRC is judged to be failed to be received, the BWP switching process can be rapidly restarted, and the time delay influence of the BWP switching on the service scheduling of the terminal is reduced.
Referring to fig. 2, which shows a flowchart of a BWP switching method provided in an embodiment of the present application, for convenience of description, terms in the embodiment shown in fig. 2 are described. In this embodiment, based on the switching of the BWP (partial Bandwidth) of the RRC (Radio Resource Controller), a partial Bandwidth (BWP) is introduced into the 5G system, and the BWP is a continuous Bandwidth, so that the terminal does not need to support data transceiving within the entire system Bandwidth, but only needs to support data transceiving within the Bandwidth of the BWP. In the 5G system, multiple upstream BWPs and multiple downstream BWPs may be configured in the whole system bandwidth, and at the same time, the terminal has only one active upstream BWP and one active downstream BWP, and the timing on each BWP may be different, and the active BWPs may be dynamically adjusted according to the traffic conditions. Radio Resource Control (RRC) information handover refers to that a terminal determines a target uplink BWP and a target downlink BWP to be handed over according to a first activated uplink BWP identifier and a first activated downlink BWP identifier in RRC information, that is, the terminal performs corresponding BWP handover according to a BWP handover command of an RRC sent by a base station, where the handover command may be a BWP handover reconfiguration message of the RRC, for example, the handover command carries the activated uplink BWP identifier and the activated BWP identifier.
If the terminal executes the BWP handover reconfiguration message based on the RRC sent by the base station, the terminal does not perform scheduling and transmission processing on the PDCCH/PDSCH/PUCCH/PUSCH channels within the handover delay, where the PDCCH (physical Downlink Control channel) refers to a physical Downlink Control channel. The PDCCH carries scheduling and other control information, specifically including transport format, resource allocation, uplink scheduling grant, power control and uplink retransmission information; a PDSCH (Physical Downlink Shared Channel) for transmitting Downlink traffic data; a PUCCH (Physical Uplink Control Channel) that mainly transmits Control information on an Uplink; the PUSCH (Physical Uplink Shared Channel) is used as a main Uplink data bearer in the Physical layer, and is used for scheduling and transmitting Uplink data, and may carry control information, user service information, broadcast service information, and the like.
Referring to fig. 2, the handover method may include the steps of:
s201, the base station sends a BWP switching reconfiguration message based on RRC.
When the base station performs the RRC-based BWP handover, the base station sends an RRC-based BWP reconfiguration message, where the RRC-based BWP reconfiguration message may include related information indicating to switch to the target active BWP, for example, the RRC-based BWP reconfiguration message may include identification information indicating to switch to the active uplink BWP and identification information indicating to switch to the active downlink BWP, so that the base station can know to switch the current BWP to the target active BWP after receiving the reconfiguration message. It should be noted that whether the terminal can correctly receive the BWP handover reconfiguration message or not cannot be determined through HARQ (Hybrid Automatic Repeat reQuest) feedback of the PUCCH/PUSCH channel, that is, the base station cannot receive HARQ feedback of the terminal based on the PUCCH/PUSCH channel after transmitting the RRC-based BWP reconfiguration message, and only after waiting for a handover delay, can it be determined whether the terminal has handed over to the target active BWP.
S202, the terminal enters a BWP switching transition state.
S203, the base station continuously transmits N uplink DCI schedules.
It should be noted that, in the embodiment of the present application, entering the BWP handover transition state by the terminal means that a transition state in which the BWP handover reconfiguration message is successfully scheduled is added in a MAC (Media Access Control) layer, that is, it can be determined whether the terminal correctly receives the BWP handover reconfiguration message in the transition state. Specifically, the base station continuously sends N uplink DCI schedules, that is, the base station sends uplink DCI uplink scheduling information through a PDCCH channel, and detects the uplink scheduling result on a PUSCH channel to determine whether the terminal receives the BWP handover reconfiguration message, where the uplink DCI mainly indicates transmission of an uplink PUSCH.
S204, continuously receiving N PUSCHs by a base station bottom layer;
s205, obtaining a PUSCH decoding result, if the decoding result is that both the continuous N times are DTX, executing S206, and if any one time is non-DTX, executing S201;
s206, the terminal is determined to have received the BWP handover reconfiguration message, and the handover delay is entered. The base station sending N consecutive uplink DCI schedules means that the base station instructs the terminal to perform uplink PUSCH transmission, that is, after receiving the uplink DCI schedule, the terminal performs uplink PUSCH transmission, and specifically, may transmit service data corresponding to the uplink DCI schedule through the uplink PUSCH channel. Then, the base layer of the base station will detect N PUSCHs sent by the terminal and decode the PUSCHs, where the decoding results usually include two types, where one decoding result is that both N consecutive times are DTX (no signal detected), which proves that the terminal is in BWP handover delay and cannot perform scheduling and transmission processing through a PUSCH channel, i.e., it is determined that the terminal has correctly received the BWP reconfiguration message and enters handover delay. The other is that when the channel is non-DTX at any time, that is, the base station detects a signal on the PUSCH channel, it is considered that the terminal responds to the uplink DCI scheduling, and the terminal does not receive the BWP handover reconfiguration message, can still perform uplink scheduling, and re-enters the flow of sending the RRC-based BWP handover reconfiguration message.
In this embodiment, a terminal is added to enter a transition state of BWP handover to achieve a determination process of monitoring continuous uplink DCI scheduling, so as to quickly determine a BWP handover message receiving situation. And actively sending tentative uplink DCI when entering a BWP switching transition state, and determining whether the terminal can still schedule according to the decoding condition of a PUSCH of the DCI, thereby verifying whether the RRC-based BWP switching reconfiguration message is reliably received. When determining that the RRC-based BWP handover reconfiguration message fails to be received, the BWP handover process can be rapidly reinitiated, and the delay influence of the BWP handover on the UE service scheduling is reduced.
Referring to fig. 3, in an embodiment of the present application, there is also provided an information processing apparatus including:
a sending unit 301, configured to send a partial bandwidth BWP handover instruction to a terminal in response to a base station, where the base station sends scheduling information to the terminal on an original BWP, and the BWP handover instruction is used to instruct the terminal to switch from the original BWP to a target active BWP;
a detecting unit 302, configured to detect whether the base station receives feedback information of the terminal based on the scheduling information;
a determining unit 303, configured to, if yes, continue sending the BWP handover instruction by the base station until the base station determines that the terminal correctly receives the BWP handover instruction.
In an embodiment, the determining unit is specifically configured to:
and the base station does not receive the feedback information of the terminal based on the scheduling information, and determines that the terminal correctly receives the BWP switching instruction.
Optionally, the sending unit is specifically configured to:
after responding to a target time period of a BWP switching instruction sent by a base station to a terminal, the base station sends scheduling information to the terminal on an original BWP, and the duration of the target time period is less than the BWP switching time delay of the terminal.
In one embodiment, the transmitting unit includes:
an information sending subunit, configured to continuously send, by the base station, a plurality of uplink scheduling information to the terminal on an original BWP;
the determination unit includes:
a first determining subunit, configured to determine that the BWP handover instruction is correctly received by the terminal in response to the base station not detecting feedback information of the uplink scheduling information based on an uplink shared channel.
Optionally, the apparatus further comprises:
and a service data sending unit, configured to switch to a target active BWP in response to the terminal receiving the BWP handover instruction, where the base station sends service data to the terminal on the target active BWP.
Optionally, the apparatus further comprises:
an instruction generating unit, configured to generate a BWP handover instruction for a terminal by the base station, where the instruction generating unit is specifically configured to:
the base station monitors the service data transmission state of the terminal on the original BWP;
the base station determines a target activation BWP based on the service data transmission state;
generating a BWP handoff instruction matching the target active BWP.
Optionally, the apparatus further comprises:
an information sending unit, configured to, in response to the terminal correctly receiving the BWP handover instruction, send scheduling information to the terminal on the target active BWP by the base station after a BWP handover delay of the terminal;
and the instruction sending unit is used for resending the BWP switching instruction by the base station if the base station does not receive the feedback information which is transmitted by the terminal through the target activated BWP and corresponds to the scheduling information.
The embodiment of the application provides an information processing apparatus, in response to a base station sending a BWP handover command to a terminal, the base station sending scheduling information to the terminal on an original BWP, the base station detecting whether feedback information based on the scheduling information is received by the terminal, and if so, the base station continuing sending the BWP handover command until the base station determines that the terminal correctly receives the BWP handover command. The base station judges whether the BWP switching instruction is correctly received by the terminal or not by sending the scheduling information, and if the terminal fails to receive, the BWP switching instruction can be rapidly sent again, so that the time delay influence of the BWP switching on the service scheduling of the terminal is reduced.
It should be noted that, for the specific implementation of each unit in the present embodiment, reference may be made to the corresponding content in the foregoing, and details are not described here.
Referring to fig. 4, a schematic structural diagram of a base station device provided in the embodiment of the present application is shown, where the technical solution of the embodiment is mainly used to reduce the delay impact of BWP handover on terminal service scheduling.
Specifically, the base station device in this embodiment may include the following structure:
a memory 401 for storing an application program and data generated by the application program;
a processor 402 for executing the application to implement:
responding to a base station sending a partial bandwidth BWP switching instruction to a terminal, wherein the base station sends scheduling information to the terminal on an original BWP, and the BWP switching instruction is used for indicating the terminal to be switched from the original BWP to a target active BWP;
the base station detects whether feedback information based on the scheduling information of the terminal is received;
if yes, the base station continues to send the BWP switching instruction until the base station determines that the terminal correctly receives the BWP switching instruction.
The embodiment of the present application provides a base station device, which responds to a base station sending a BWP handover command to a terminal, the base station sending scheduling information to the terminal on an original BWP, and the base station detecting whether the base station receives feedback information of the terminal based on the scheduling information, and if so, the base station continuing sending the BWP handover command until the base station determines that the terminal correctly receives the BWP handover command. The base station judges whether the BWP switching instruction is correctly received by the terminal or not by sending the scheduling information, and if the terminal fails to receive, the BWP switching instruction can be rapidly sent again, so that the time delay influence of the BWP switching on the service scheduling of the terminal is reduced.
It should be noted that, the specific implementation of the processor in the present embodiment may refer to the corresponding content in the foregoing, and is not described in detail here.
Referring to fig. 5, a signaling interaction diagram of a communication system provided in an embodiment of the present application is shown, where the communication system includes a base station and a terminal.
The base station sends a BWP switching instruction to the terminal;
the base station sends scheduling information to the terminal on the original BWP;
the terminal generates feedback information based on the scheduling information;
the terminal sends the feedback information to the base station;
the base station resends the BWP switching instruction and sends scheduling information to the terminal;
and if the base station does not receive the feedback information of the terminal, the terminal receives a BWP switching instruction and switches the original BWP to a target activated BWP.
The embodiment of the present application provides a communication system, in response to a base station sending a BWP handover command to a terminal, the base station sending scheduling information to the terminal on an original BWP, the base station detecting whether feedback information based on the scheduling information is received by the terminal, and if so, the base station continuing sending the BWP handover command until the base station determines that the terminal correctly receives the BWP handover command. The base station judges whether the BWP switching instruction is correctly received by the terminal or not by sending the scheduling information, and if the terminal fails to receive, the BWP switching instruction can be rapidly sent again, so that the time delay influence of the BWP switching on the service scheduling of the terminal is reduced.
It should be noted that, for the embodiment of the base station in the present embodiment, reference may be made to the corresponding contents in the foregoing, and details are not described here.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An information processing method comprising:
responding to a base station sending a partial bandwidth BWP switching instruction to a terminal, wherein the base station sends scheduling information to the terminal on an original BWP, and the BWP switching instruction is used for indicating the terminal to be switched from the original BWP to a target active BWP;
the base station detects whether feedback information based on the scheduling information of the terminal is received;
if yes, the base station continues to send the BWP switching instruction until the base station determines that the terminal correctly receives the BWP switching instruction.
2. The method of claim 1, the determining, by the base station, that the BWP handover instruction was correctly received by the terminal, comprising:
and the base station does not receive the feedback information of the terminal based on the scheduling information, and determines that the terminal correctly receives the BWP switching instruction.
3. The method of claim 1, wherein the base station sends scheduling information to the terminal on an original BWP, comprising:
after responding to a target time period of a BWP switching instruction sent by a base station to a terminal, the base station sends scheduling information to the terminal on an original BWP, and the duration of the target time period is less than the BWP switching time delay of the terminal.
4. The method of claim 1, wherein the base station sends scheduling information to the terminal on an original BWP, comprising:
the base station continuously sends a plurality of uplink scheduling information to the terminal on the original BWP;
the determining that the terminal correctly receives the BWP handover instruction includes:
determining that the terminal correctly receives the BWP switching instruction in response to the base station not detecting feedback information of the uplink scheduling information based on an uplink shared channel.
5. The method of claim 1, further comprising:
and in response to the terminal receiving the BWP switching instruction, switching to target active BWP, and sending the service data to the terminal on the target active BWP by the base station.
6. The method of claim 1, further comprising:
the base station generates a BWP switching instruction of the terminal, and the BWP switching instruction comprises the following steps:
the base station monitors the service data transmission state of the terminal on the original BWP;
the base station determines a target activation BWP based on the service data transmission state;
generating a BWP handoff instruction matching the target active BWP.
7. The method of claim 1, further comprising:
in response to the terminal correctly receiving the BWP handover instruction, the base station transmitting scheduling information to the terminal on the target active BWP after a BWP handover delay of the terminal;
and if the base station does not receive the feedback information which is transmitted by the terminal through the target activated BWP and corresponds to the scheduling information, the base station retransmits the BWP switching instruction.
8. An information processing apparatus comprising:
a sending unit, configured to send, in response to a base station sending a partial bandwidth BWP handover instruction to a terminal, where the base station sends scheduling information to the terminal on an original BWP, and the BWP handover instruction is used to instruct the terminal to switch from the original BWP to a target active BWP;
a detecting unit, configured to detect, by the base station, whether feedback information based on the scheduling information is received by the terminal;
a determining unit, configured to, if yes, continue sending the BWP handover command by the base station until the base station determines that the terminal correctly receives the BWP handover command.
9. A base station apparatus, comprising:
a memory for storing an application program and data generated by the application program running;
a processor for executing the application to implement:
responding to a base station sending a partial bandwidth BWP switching instruction to a terminal, wherein the base station sends scheduling information to the terminal on an original BWP, and the BWP switching instruction is used for indicating the terminal to be switched from the original BWP to a target active BWP;
the base station detects whether feedback information based on the scheduling information of the terminal is received;
if yes, the base station continues to send the BWP switching instruction until the base station determines that the terminal correctly receives the BWP switching instruction.
10. A communication system, comprising: a base station and a terminal;
the base station is configured to perform the fractional bandwidth BWP handover method according to any of claims 1-7;
the terminal is used for switching the original BWP to a target activation BWP if the BWP switching instruction is correctly received; and the base station is further configured to generate feedback information based on the scheduling information and send the feedback information to the base station if the BWP switching instruction is not received.
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| CN202110352080.7A CN113068264A (en) | 2021-03-31 | 2021-03-31 | Information processing method, device, base station equipment and communication system |
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| CN202110352080.7A CN113068264A (en) | 2021-03-31 | 2021-03-31 | Information processing method, device, base station equipment and communication system |
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| CN114337775A (en) * | 2021-12-15 | 2022-04-12 | 中国飞行试验研究院 | Air-ground communication network architecture, ground base station and base station array antenna switching method |
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