CN112911649B - Method and equipment for switching downlink partial bandwidth - Google Patents
Method and equipment for switching downlink partial bandwidth Download PDFInfo
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- CN112911649B CN112911649B CN202110056482.2A CN202110056482A CN112911649B CN 112911649 B CN112911649 B CN 112911649B CN 202110056482 A CN202110056482 A CN 202110056482A CN 112911649 B CN112911649 B CN 112911649B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/18—Negotiating wireless communication parameters
- H04W28/20—Negotiating bandwidth
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/27—Transitions between radio resource control [RRC] states
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The application discloses a downlink partial bandwidth switching method, which is used for a downlink partial bandwidth switching mechanism of a mobile communication system, and when a timer is started, the corresponding downlink partial bandwidth is activated; and when the timer is overtime, the terminal equipment is switched from the activated downlink bandwidth to the default downlink bandwidth. Transmitting downlink part bandwidth indexes through uplink information, and starting/restarting a timer by network equipment and terminal equipment when starting/restarting conditions of the timer corresponding to the downlink part bandwidth occur; and/or, for each of at least a portion of the downstream portion bandwidth, independently configuring the start/restart conditions of the corresponding timer, and/or, independently setting the corresponding timer parameters. The application also comprises a device applying the method. The method and the device solve the problem that the downlink part of the bandwidth is not aligned due to the asynchronous bandwidth activation timer between the base station and the terminal.
Description
Technical Field
The present application relates to the field of wireless communications technologies, and in particular, to a method and an apparatus for partial bandwidth handover.
Background
In the existing 5G mobile communication, a terminal may configure a plurality of downlink fractional bandwidths (DL BWPs), including a default DL BWP and an initial DL BWP. The terminal selects one of the configured downlink fractional bandwidths as an active downlink fractional bandwidth (active DL BWP), and receives downlink signaling and downlink transmission data on the bandwidth.
The activated downlink partial bandwidth of the terminal can be switched over a plurality of configured downlink partial bandwidths, and the activated downlink partial bandwidth can be switched over through a physical layer downlink control signaling (DCI), a high layer RRC signaling or a high layer configured bandwidth activation timer (bwp-InactivityTimer).
Based on the prior art, when invalid transmission occurs in data transmission that can trigger a bandwidth activation timer (bwp-inactivity timer) between a base station and a terminal, it may cause the bandwidth activation timer to restart asynchronously between the base station and the terminal. For example, the base station sends a downlink scheduling-free PDSCH to the terminal, the base station restarts the bandwidth activation timer, the terminal does not correctly receive the PDSCH but does not restart the bandwidth activation timer, the base station and the terminal side bandwidth activation timers are not synchronized, the terminal side timer is switched to a default downlink partial bandwidth or an initial downlink partial bandwidth when timeout occurs, and the base station side timer continues to send downlink data on the previous activated downlink partial bandwidth when the timeout does not occur. The currently used downlink bandwidth between the base station and the terminal is inconsistent, which may cause errors in downlink scheduling or downlink data transmission. The base station and the terminal need to realign the current downlink bandwidth to perform effective communication. In general, a terminal may align a downlink partial bandwidth with a base station by initiating a random access or the like. In a remote communication scenario, such as a satellite communication scenario, time delay introduced by random access is large, downlink part of bandwidths are not aligned due to asynchronism of a bandwidth activation timer between a terminal and a base station, and further downlink scheduling or downlink transmission data errors have a large influence on a system, and the bandwidth activation timer needs to be enhanced and designed to reduce the influence of the problems on system transmission efficiency.
Disclosure of Invention
The invention provides a method and equipment for switching downlink partial bandwidth, aiming at optimizing the design of an enhanced bandwidth activation timer so as to improve the probability of understanding consistency of currently used downlink partial bandwidth between a base station and a terminal and solve the problem of system transmission efficiency reduction caused by downlink scheduling or downlink transmission data errors due to the fact that the downlink partial bandwidth is not aligned between the base station and the terminal due to the asynchronization of the bandwidth activation timer.
In a first aspect, the present application provides a downlink fractional bandwidth handover method, which is used for a downlink fractional bandwidth handover mechanism of a mobile communication system, and when a timer is started, a corresponding downlink fractional bandwidth is activated; when the timer is overtime, the terminal equipment is switched to the default downlink partial bandwidth from the activated downlink partial bandwidth; comprises the following steps:
transmitting downlink part bandwidth indexes through uplink information, and starting/restarting a timer by network equipment and terminal equipment when starting/restarting conditions of the timer corresponding to the downlink part bandwidth occur;
and/or the presence of a gas in the gas,
for each of at least a portion of the downstream portion bandwidth, independently configuring the start/restart conditions of the corresponding timer and/or independently setting the corresponding timer parameters.
Preferably, the conditions comprise at least one of: receiving a PDSCH scheduled by a PDCCH, transmitting a PUSCH scheduled by the PDCCH, and transmitting a PUCCH.
Preferably, the configuration information of the higher layer signaling includes a parameter of the timer; the timer is activated or deactivated through the DCI, and/or parameters of the timer are modified through the DCI.
Preferably, the uplink information includes a currently-resident downlink partial bandwidth index; the triggering condition of the uplink information comprises at least one of the following conditions: the timer times out; switching the downlink part of the bandwidth according to the indication; triggering is carried out periodically.
The method according to any one of the embodiments of the first aspect of the present application, for a network device, includes the following steps:
the network device independently configures starting/restarting conditions of a corresponding timer for each of at least a part of the downlink portion bandwidth, and/or independently sets corresponding timer parameters; and starting a corresponding timer according to the timer parameter when the current resident downlink part bandwidth meets the condition.
Further, the method also comprises the following steps: and receiving the downlink part bandwidth index reported by the terminal equipment, and triggering the corresponding timer.
The method according to any one of the embodiments of the first aspect of the present application, applied to a terminal device, includes the following steps:
the terminal equipment receives the configuration information, independently configures starting/restarting conditions of a corresponding timer for each of at least one part of downlink part bandwidth, and/or independently sets corresponding timer parameters; and starting a corresponding timer according to the timer parameter when the current resident downlink part bandwidth meets the condition.
Further, the method also comprises the following steps: and the terminal equipment reports the downlink bandwidth index and triggers a corresponding timer.
In a second aspect, the present application further provides a network device, where with the method of any of the first aspects of the present application, the network device is configured to: for each of at least one part of downlink bandwidth, independently configuring a starting/restarting condition of a corresponding timer, and/or independently setting a corresponding timer parameter, and further, receiving a currently resident downlink bandwidth index sent by a terminal device; and starting a corresponding timer according to the timer parameter when the current resident downlink part bandwidth meets the condition.
In a third aspect, the present application further provides a terminal device, where with the method of any one of the first aspects of the present application, the terminal device is configured to: receiving configuration information, independently configuring starting/restarting conditions of a corresponding timer for each of at least one part of downlink bandwidth, and/or independently setting corresponding timer parameters, and further sending a currently resident downlink bandwidth index by the terminal equipment; and starting a corresponding timer according to the timer parameter when the current resident downlink part bandwidth meets the condition.
In the apparatus of the second aspect and the third aspect, the present application further proposes a communication device, including: memory, a processor and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the method according to any one of the embodiments of the first aspect of the application.
In a fourth aspect, the present application also proposes a computer-readable medium on which a computer program is stored, which computer program, when being executed by a processor, carries out the steps of the method according to any one of the embodiments of the first aspect of the present application.
In a fifth aspect, the present application further provides a mobile communication system, including at least one network device according to any embodiment of the present application and/or at least one terminal device according to any embodiment of the present application.
The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:
the invention aims to optimize the design of the enhanced bandwidth activation timer so as to improve the probability of understanding consistency of the currently used downlink bandwidth between a base station and a terminal and reduce the problem of system transmission efficiency reduction caused by downlink scheduling or downlink transmission data errors due to the fact that the downlink bandwidth is not aligned between the base station and the terminal because of the asynchronization of the bandwidth activation timer.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic diagram of timer switching;
FIG. 2 is a flow chart of an embodiment of the method of the present application;
fig. 3 shows that the reported information of the terminal device includes a part of the bandwidth index;
FIG. 4 is a flow chart of an embodiment of a method of the present application for a network device;
FIG. 5 is a flowchart of an embodiment of a method of the present application for a terminal device;
FIG. 6 is a schematic diagram of an embodiment of a network device;
FIG. 7 is a schematic diagram of an embodiment of a terminal device;
fig. 8 is a schematic structural diagram of a network device according to another embodiment of the present invention;
fig. 9 is a block diagram of a terminal device of another embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some 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.
The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of timer switching. As shown in fig. 1, when the timer expires, the terminal switches from the activated downlink bandwidth to the default downlink bandwidth, and if the default downlink bandwidth is not configured, switches to the initial downlink bandwidth.
Wherein the bandwidth activation timer is valid for an activated downlink portion bandwidth of a non-default downlink portion bandwidth and a non-initial downlink portion bandwidth, and is restarted when the following conditions are met and no random access is performed or the random access is completed according to the existing protocol:
receiving a PDCCH, and scheduling uplink or downlink transmission by the PDCCH;
scheduling-free transmission of uplink without LBT failure;
and receiving downlink scheduling-free transmission.
Fig. 2 is a flowchart of an embodiment of the method of the present application.
In a first aspect, the present application provides a method for switching downlink fractional bandwidth, which is used for a downlink fractional bandwidth switching mechanism of a mobile communication system, and the embodiment includes the following steps 101 to 104:
For each of at least a portion of the downstream portion of bandwidth, a start/restart condition of a corresponding timer is independently configured.
Preferably, the conditions comprise at least one of:
(1) Receiving PDSCH scheduled based on PDCCH
(2) Sending PUSCH based on PDCCH scheduling
(3) And transmitting the PUCCH.
When the condition for restarting or starting the bandwidth activation timer includes the condition (1), which indicates that the terminal receives the PDSCH scheduled based on the PDCCH, the bandwidth activation timer on the downlink partial bandwidth corresponding to the PDSCH is restarted or started. And when the base station side correspondingly transmits the PDSCH scheduled based on the PDCCH, restarting or starting a bandwidth activation timer on a downlink part bandwidth corresponding to the PDSCH transmission.
When the condition for restarting or starting the bandwidth activation timer includes the condition (2), which indicates that the terminal transmits the PUSCH scheduled based on the PDCCH, the bandwidth activation timer on the current downlink partial bandwidth when transmitting the PUSCH is restarted or started. And when the base station side correspondingly receives the PUSCH scheduled based on the PDCCH, restarting or starting the bandwidth activation timer on the current downlink partial bandwidth when receiving the PUSCH. It should be noted that, when the terminal transmits the PUSCH scheduled based on the PDCCH, the terminal restarts or starts the PUSCH transmission time before the uplink timing advance is applied by the bandwidth activation timer on the current downlink partial bandwidth when the PUSCH is transmitted.
When the condition for restarting or starting the bandwidth activation timer includes the condition (3), which indicates that the terminal transmits the PUCCH, the bandwidth activation timer on the current downlink partial bandwidth when transmitting the PUCCH is restarted or started. And when the base station side correspondingly receives the PUCCH, restarting or starting a bandwidth activation timer on the current downlink partial bandwidth when receiving the PUCCH. It should be noted that, when the terminal sends the PUCCH, the terminal restarts or starts sending the PUCCH, and the bandwidth activation timer on the current downlink partial bandwidth does not apply the PUCCH sending time advanced by the uplink timing. Further optionally, the PUCCH may carry a PUCCH for ACK/NACK, or a PUCCH for reporting CSI, or the like. The PUCCH resource may be a higher layer signaling configuration indication or a PDCCH indication.
Optionally, when the terminal transmits the feedback NACK for a PDSCH, the terminal side does not restart or start the bandwidth activation timer when receiving the PDSCH and/or the PDCCH scheduled correspondingly to the PDSCH, and the corresponding base station does not restart or start the bandwidth activation timer when transmitting the PDSCH and/or the PDCCH scheduled correspondingly to the PDSCH.
Optionally, when the terminal obtains the re-scheduling retransmission resource of the base station side for a certain PUSCH, the terminal side correspondingly sends the PUSCH without restarting or starting the bandwidth activation timer, and the corresponding base station correspondingly receives the PUSCH without restarting or starting the bandwidth activation timer.
102, configuring or setting a timer parameter corresponding to a downlink partial bandwidth;
preferably, for each of at least a portion of the downstream portion of bandwidth, the parameters of the corresponding timer are configured independently. And configuring an independent bandwidth activation timer for each downlink part bandwidth, wherein the bandwidth activation timers with different values can be configured for other downlink part bandwidths configured except the default downlink part bandwidth and the initial downlink part bandwidth. The improved design can support the base station to reside in different downlink part bandwidths for different time according to the actual requirement of the terminal. For example, when the downlink traffic transmission volume of the base station and the terminal is large, the downlink bandwidth with a large bandwidth activation timer can be selected for transmission; when the downlink traffic transmission amount of the base station and the terminal is small, the downlink partial bandwidth with the smaller bandwidth activation timer can be selected for transmission.
Preferably, the configuration information of the higher layer signaling includes a parameter of the timer, and the parameter of the timer is modified through the DCI. The value of the bandwidth activation timer may be reconfigured by DCI or other signaling. In the existing protocol, the value of the bandwidth activation timer is configured by a high-level signaling, and dynamic change is not supported. The value of the bandwidth activation timer can be reconfigured through DCI, and the method is suitable for reconfiguring a bandwidth activation timer with a smaller value in the last DCI sent on the downlink bandwidth when a bandwidth activation timer with a larger value is configured by a high layer so as to indicate that the terminal is quickly switched to a default downlink bandwidth or an initial downlink bandwidth after receiving a PDSCH (physical downlink shared channel) of subsequent scheduling. The method is also suitable for the situation that when a bandwidth activation timer with a smaller value is configured at a high layer, when the traffic volume of the next industry is larger, the bandwidth activation timer with a larger value is reconfigured through the DCI so as to support the terminal to stay for a longer time on the currently activated downlink bandwidth, and frequent downlink bandwidth switching is avoided.
And 103, activating or deactivating a timer corresponding to the downlink part bandwidth.
Preferably, the timer is activated or deactivated through DCI;
that is, when the bandwidth activation timer is configured in the higher layer signaling, the bandwidth activation timer may be used according to a specific scenario in practical applications. For example, in a long-distance communication scenario, when DCI is not activated, the bandwidth activation timer is not used to avoid a problem of inconsistency of understanding of downlink fractional bandwidths between a base station and a terminal, where the problem is introduced by the timer, and the timer is activated in a last DCI sent on the downlink bandwidth to instruct the terminal to switch to a default downlink fractional bandwidth or an initial downlink fractional bandwidth after the timer expires, so as to reduce signaling overhead introduced by partial bandwidth switching based on DCI and high-layer signaling.
And transmitting a downlink part bandwidth index through uplink information, and starting/restarting the timer by the network equipment and the terminal equipment when the starting/restarting condition of the timer corresponding to the downlink part bandwidth occurs.
Preferably, the uplink control information includes a currently-resident downlink bandwidth index, or a downlink bandwidth index is carried by the MAC CE; the triggering condition of the uplink information comprises at least one of the following conditions: the timer is overtime, or the downlink bandwidth is switched according to the indication, or the report is triggered periodically.
The terminal reports the current downlink bandwidth index, that is, the terminal reports the currently-resident downlink bandwidth index to the base station through the uplink channel, for example, fig. 3 shows that the report information of the terminal device includes a partial bandwidth index. The uplink channel for reporting the downlink fractional bandwidth index may be a Physical Uplink Control Channel (PUCCH) or a Physical Uplink Shared Channel (PUSCH). The downlink fractional bandwidth index may be at least one (or any number of) information bearer in UCI, MAC CE, higher layer signaling. The reporting of the current downlink bandwidth index by the terminal can be event-triggered reporting, wherein the event-triggered reporting can be triggered after the terminal bandwidth activation timer is switched to a default downlink bandwidth or an initial downlink bandwidth after time out; or the terminal may switch to the indicated downlink bandwidth after receiving the command to switch the downlink bandwidth, and then trigger the terminal.
The reporting of the current downlink part bandwidth index by the terminal can be periodic reporting, wherein the resource which is periodically reported is configured through a high-level signaling, or is configured through the high-level signaling and activated or deactivated through a physical-layer signaling. And the terminal reports the current downlink part bandwidth index on the configured periodic resource.
And 105, activating or switching the downlink part of the bandwidth through a timer.
When the condition set in step 101 occurs, when the timer is started, the corresponding downlink fractional bandwidth is activated.
And when the timer is overtime, the terminal equipment is switched from the activated downlink bandwidth to the default downlink bandwidth.
It should be noted that, in the embodiment, partial steps 101 to 105 are in a sum or a sum relationship, for example, when steps 101 and 102 are included, steps 103 and 104 may be optional features. The inventive features of step 101 may be implemented in conjunction with the inventive features of step 102 or step 101 the inventive features may be implemented in conjunction with existing downlink segment bandwidth activation timer parameter configuration techniques. Likewise, the features of the present invention in step 102 may be implemented in conjunction with existing techniques for configuring or setting conditions for starting or restarting timers corresponding to downstream fractional bandwidths, to form a complete solution. Alternatively, the features of the present invention in step 104 may be implemented in conjunction with existing techniques for configuring or setting conditions for starting or restarting timers corresponding to downstream fractional bandwidth, to form a complete solution.
Fig. 4 is a flowchart of an embodiment of a method of the present application for a network device.
The method according to any one of the embodiments of the first aspect of the present application, for a network device, includes the following steps 201 to 203:
in the apparatus of the present application, the condition to restart or start the broadband activation timer includes at least one of the following conditions in addition to the conditions of the prior art:
(1) Transmitting a PDSCH scheduled based on a PDCCH;
(2) Receiving a PUSCH scheduled based on a PDCCH;
(3) The PUCCH is received.
And/or, in the device of the present application, the configuration of the bandwidth activation timer comprises at least one of the following improvements:
(1) Configuring an independent bandwidth activation timer for each downlink partial bandwidth;
(2) The bandwidth activation timer can be activated and deactivated through the DCI;
(3) The value of the bandwidth activation timer may be reconfigured by DCI or other signaling.
in step 202, the UCI medium bearer and/or the uplink MAC CE medium and/or the uplink higher layer signaling is used to carry the downlink fractional bandwidth index.
And transmitting a downlink part bandwidth index through uplink information, and starting/restarting the timer by the network equipment and the terminal equipment when the starting/restarting condition of the timer corresponding to the downlink part bandwidth occurs.
And 203, when the condition is met, the network equipment starts or restarts a corresponding timer according to the timer parameter for the currently resident downlink partial bandwidth.
It should be noted that steps 201 and 202 of this embodiment are and/or. When the solution is performed in real time, the features of the present invention in steps 201 and 203 may be implemented together with the existing techniques for configuring or setting the conditions for starting or restarting the timer corresponding to the downlink bandwidth, so as to form a complete solution. Alternatively, the features of the present invention in steps 202 and 203 may be implemented in conjunction with existing techniques for configuring or setting conditions for starting or restarting timers corresponding to downstream fractional bandwidth, to form a complete solution.
Fig. 5 is a flowchart of an embodiment of a method of the present application for a terminal device.
The method according to any one of the embodiments of the first aspect of the present application, which is used for a terminal device, includes the following steps 301 to 303:
in the apparatus of the present application, the condition to restart or start the broadband activation timer includes at least one of the following conditions in addition to the conditions of the prior art:
(1) Receiving a PDSCH scheduled based on a PDCCH;
(2) Sending a PUSCH scheduled based on the PDCCH;
(3) And transmitting the PUCCH.
And/or, in the device of the present application, the configuration of the bandwidth activation timer comprises at least one of the following improvements:
(1) Configuring an independent bandwidth activation timer for each downlink partial bandwidth;
(2) The bandwidth activation timer can be activated and deactivated through the DCI;
(3) The value of the bandwidth activation timer may be reconfigured by DCI or other signaling.
The device supports the terminal to report the current downlink part bandwidth index. For example, in step 302, the downlink fractional bandwidth index is carried in UCI and/or MAC CE and/or higher layer signaling. Reporting the current downlink bandwidth index may be based on event triggering or may be based on periodic reporting.
And transmitting a downlink part bandwidth index through uplink information, and starting/restarting the timer by the network equipment and the terminal equipment when the starting/restarting condition of the timer corresponding to the downlink part bandwidth occurs.
And 303, when the condition is met for the currently resident downlink part bandwidth, the terminal equipment starts or restarts a corresponding timer according to the timer parameter.
It should be noted that, in this embodiment, steps 301 and 302 are in an and/or relationship. When the scheme is implemented in real time, the features of the present invention in steps 301 and 303 may be implemented together with the existing techniques for configuring or setting the conditions for starting or restarting the timer corresponding to the downlink bandwidth, so as to form a complete solution. Alternatively, the features of the present invention in steps 302, 303 may be implemented in conjunction with existing techniques for configuring or setting conditions for starting or restarting timers corresponding to downstream fractional bandwidth, to form a complete solution.
Fig. 6 is a schematic diagram of an embodiment of a network device.
An embodiment of the present application further provides a network device, where, using the method according to any one of the embodiments of the present application, the network device is configured to: independently configuring, for each of at least a portion of the downstream portion bandwidth, a start/restart condition of a corresponding timer and/or independently setting a corresponding timer parameter; the network equipment receives the current downlink partial bandwidth index; and starting or restarting a corresponding timer according to the timer parameter when the current resident downlink partial bandwidth meets the condition.
In order to implement the foregoing technical solution, the network device 400 provided in the present application includes a network sending module 401, a network determining module 402, and a network receiving module 403.
The network sending module is configured to send the high-level signaling and/or the downlink control signaling, and includes a start/restart condition of a timer corresponding to each downlink bandwidth in a group of downlink bandwidths, and/or a timer parameter corresponding to each downlink bandwidth.
The network determining module is used for determining a timer starting or restarting condition and determining a timer working parameter so as to generate the high-level signaling and/or the downlink control signaling; and is also used for determining the occurrence of a timer starting or restarting condition to trigger the timer to work.
And the network receiving module is used for receiving the downlink bandwidth index.
The specific method for implementing the functions of the network sending module, the network determining module, and the network receiving module is described in the embodiments of the methods of the present application, and is not described herein again.
The network device may be, for example, a base station device.
Fig. 7 is a schematic diagram of an embodiment of a terminal device.
The present application further provides a terminal device, which uses the method of any one of the embodiments of the present application, and is configured to: receiving configuration information, independently configuring starting/restarting conditions of a corresponding timer for each of at least one part of downlink partial bandwidth, and/or independently setting corresponding timer parameters; the terminal equipment reports the current downlink part bandwidth index; and starting or restarting a corresponding timer according to the timer parameter when the current resident downlink partial bandwidth meets the condition.
In order to implement the foregoing technical solution, the terminal device 500 provided in the present application includes a terminal sending module 501, a terminal determining module 502, and a terminal receiving module 503.
The terminal receiving module is configured to receive the high-level signaling and/or the downlink control signaling, and includes a start/restart condition of a timer corresponding to each downlink bandwidth in a group of downlink bandwidths, and/or a timer parameter corresponding to each downlink bandwidth.
The terminal determining module is used for determining the starting or restarting condition of the timer and determining the working parameters of the timer according to the high-level signaling and/or the downlink control signaling; and is also used for determining the occurrence of a timer starting or restarting condition to trigger the timer to work.
And the terminal sending module is used for sending the HARQ-ACK codebook and sending corresponding HARQ-ACK information according to the actually sent PDSCH and the time difference.
The specific method for implementing the functions of the terminal sending module, the terminal determining module and the terminal receiving module is as described in the method embodiments of the present application, and is not described herein again.
The terminal equipment can be mobile terminal equipment; it can also refer to the fixed or mobile terminal equipment set with the ground in the ground-air communication.
Fig. 8 is a schematic structural diagram of a network device according to another embodiment of the present invention. As shown, network device 600 includes a processor 601, a wireless interface 602, and a memory 603. Wherein the wireless interface may be a plurality of components, including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium. The wireless interface realizes the communication function with the terminal equipment, wireless signals are processed through the receiving and transmitting devices, and data carried by the signals are communicated with the memory or the processor through the internal bus structure. The memory 603 contains a computer program that executes any of the embodiments of the present application, running or changed on the processor 601. When the memory, processor, wireless interface circuit are connected through a bus system. The bus system includes a data bus, a power bus, a control bus, and a status signal bus, which are not described in detail herein.
Fig. 9 is a block diagram of a terminal device of another embodiment of the present invention. The terminal device 700 comprises at least one processor 701, a memory 702, a user interface 703 and at least one network interface 704. The various components in the terminal device 700 are coupled together by a bus system. A bus system is used to enable connection communication between these components. The bus system includes a data bus, a power bus, a control bus, and a status signal bus.
The user interface 703 may include a display, a keyboard, or a pointing device, such as a mouse, a trackball, a touch pad, or a touch screen, among others.
The memory 702 stores executable modules or data structures. The memory may have stored therein an operating system and an application program. The operating system includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, and is used for implementing various basic services and processing hardware-based tasks. The application programs include various application programs such as a media player, a browser, and the like for implementing various application services.
In the embodiment of the present invention, the memory 702 contains a computer program for executing any of the embodiments of the present application, and the computer program runs or changes on the processor 701.
The memory 702 contains a computer readable storage medium, and the processor 701 reads the information in the memory 702 and combines the hardware to complete the steps of the above-described method. In particular, the computer-readable storage medium has stored thereon a computer program which, when being executed by the processor 701, carries out the steps of the method embodiments as described above with reference to any of the embodiments.
The processor 701 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the method of the present application may be implemented by hardware integrated logic circuits in the processor 701 or by instructions in the form of software. The processor 701 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, an off-the-shelf programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. In a typical configuration, the device of the present application includes one or more processors (CPUs), an input/output user interface, a network interface, and a memory.
Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application therefore also proposes a computer-readable medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of the embodiments of the present application. For example, the memory 603, 702 of the present invention may include volatile memory in a computer readable medium, random Access Memory (RAM) and/or nonvolatile memory such as Read Only Memory (ROM) or flash memory (flash RAM).
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
Based on the embodiments of fig. 6 to 9, the present application further provides a mobile communication system including at least 1 embodiment of any terminal device in the present application and/or at least 1 embodiment of any network device in the present application.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. A downlink bandwidth switching method is used for a downlink bandwidth switching mechanism of a mobile communication system, when a timer is started, the corresponding downlink bandwidth is activated; when the timer is overtime, the terminal equipment switches from the activated downlink partial bandwidth to the default downlink partial bandwidth, which is characterized by comprising the following steps:
for each of at least a portion of the downstream portion bandwidth, independently configuring a start/restart condition of a corresponding timer; the condition is at least 1 of conditions 1, 2, and 3;
transmitting downlink part bandwidth indexes through uplink information, and starting/restarting a timer by network equipment and terminal equipment when starting/restarting conditions of the timer corresponding to the downlink part bandwidth occur;
when the condition for restarting or starting the bandwidth activation timer includes condition 1, the terminal restarts or starts the bandwidth activation timer on the downlink partial bandwidth corresponding to the received PDSCH when receiving the PDSCH scheduled based on the PDCCH; correspondingly, when the base station side sends the PDSCH scheduled based on the PDCCH, the bandwidth activation timer on the downlink part bandwidth corresponding to the PDSCH is restarted or started;
when the condition for restarting or starting the bandwidth activation timer includes condition 2, the terminal restarts or starts the bandwidth activation timer on the current downlink part bandwidth when sending the PUSCH based on the PDCCH scheduling; correspondingly, when receiving the PUSCH scheduled based on the PDCCH, the base station side restarts or starts a bandwidth activation timer on the current downlink part bandwidth when receiving the PUSCH;
when the condition for restarting or starting the bandwidth activation timer includes condition 3, the terminal restarts or starts the bandwidth activation timer on the current downlink partial bandwidth when the terminal sends the PUCCH; correspondingly, when receiving the PUCCH, the base station side restarts or starts a bandwidth activation timer on the current downlink partial bandwidth when receiving the PUCCH.
2. The method of claim 1,
the configuration information of the high-level signaling comprises the parameter of the timer;
the timer is activated or deactivated through the DCI, and/or parameters of the timer are modified through the DCI.
3. The method of claim 1,
the uplink information comprises the index of the currently resident downlink partial bandwidth;
the triggering condition of the uplink information comprises at least one of the following conditions:
the timer times out; switching the downlink part bandwidth according to the indication; and triggering periodically.
4. A method according to any one of claims 1 to 3, for use in a network device, comprising the steps of:
the network equipment independently configures starting/restarting conditions of a corresponding timer for each of at least one part of downlink bandwidth, and/or independently sets corresponding timer parameters, and/or a receiving terminal reports a downlink bandwidth index;
and starting a corresponding timer according to the timer parameter when the current resident downlink part bandwidth meets the condition.
5. A method according to any one of claims 1 to 3, for use in a terminal device, comprising the steps of:
the terminal equipment receives the configuration information, independently configures starting/restarting conditions of a corresponding timer for each of at least one part of downlink part bandwidth, and/or independently sets corresponding timer parameters;
and starting a corresponding timer according to the timer parameter when the current resident downlink part bandwidth meets the condition.
6. A network device for implementing the method of any one of claims 1 to 4, comprising:
a network sending module, configured to send a start/restart condition of a timer corresponding to each downlink partial bandwidth in a group of downlink partial bandwidths, and/or a timer parameter corresponding to each downlink partial bandwidth;
the network determining module is used for determining the starting or restarting condition of the timer so as to trigger the timer to work;
and the network receiving module is used for receiving the downlink bandwidth index.
7. A terminal device, configured to implement the method according to any one of claims 1 to 3 and 5, and comprising:
a terminal receiving module, configured to receive a start/restart condition of a timer corresponding to each downlink fractional bandwidth in a group of downlink fractional bandwidths, and/or a timer parameter corresponding to each downlink fractional bandwidth;
and the terminal determining module is used for determining the starting or restarting condition of the timer so as to trigger the timer to work.
8. A communication device, comprising: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps of the method according to any one of claims 1 to 5.
9. A computer-readable medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 5.
10. A mobile communication system comprising at least one network device according to claim 6 and/or at least one terminal device according to claim 7.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2019062792A1 (en) * | 2017-09-27 | 2019-04-04 | Oppo广东移动通信有限公司 | Method for switching bandwidth parts, terminal device, and computer storage medium |
| CN109788559A (en) * | 2017-11-14 | 2019-05-21 | 维沃移动通信有限公司 | Portions of bandwidth BWP switching method, terminal and the network equipment of non-symmetrical spectrum |
| WO2019127405A1 (en) * | 2017-12-29 | 2019-07-04 | Oppo广东移动通信有限公司 | Method of partial activation and deactivation of downlink bandwidth, terminal device and network device |
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| CN110324890B (en) * | 2018-03-30 | 2022-05-17 | 维沃移动通信有限公司 | Control method of partial bandwidth activation timer and terminal |
| EP3806569A4 (en) * | 2018-06-01 | 2021-06-23 | Fujitsu Limited | Method for configuring bandwidth part indicator, device, and communication system |
| CN111869288B (en) * | 2018-10-18 | 2021-12-24 | Oppo广东移动通信有限公司 | Method and device for starting timer and terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2019062792A1 (en) * | 2017-09-27 | 2019-04-04 | Oppo广东移动通信有限公司 | Method for switching bandwidth parts, terminal device, and computer storage medium |
| CN109788559A (en) * | 2017-11-14 | 2019-05-21 | 维沃移动通信有限公司 | Portions of bandwidth BWP switching method, terminal and the network equipment of non-symmetrical spectrum |
| WO2019127405A1 (en) * | 2017-12-29 | 2019-07-04 | Oppo广东移动通信有限公司 | Method of partial activation and deactivation of downlink bandwidth, terminal device and network device |
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