CN114885409A - Scheduling request sending method, device, equipment, storage medium and product - Google Patents
Scheduling request sending method, device, equipment, storage medium and product Download PDFInfo
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- CN114885409A CN114885409A CN202210796837.6A CN202210796837A CN114885409A CN 114885409 A CN114885409 A CN 114885409A CN 202210796837 A CN202210796837 A CN 202210796837A CN 114885409 A CN114885409 A CN 114885409A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
- H04W52/0248—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal dependent on the time of the day, e.g. according to expected transmission activity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
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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
Abstract
The application provides a scheduling request sending method, a device, equipment, a storage medium and a product, wherein the method comprises the following steps: when the connection discontinuous reception CDRX dormant state is in the state, generating a scheduling request corresponding to a first service; if the first service is a preset service, stopping the CDRX dormant state and sending a scheduling request; if the first service is not the preset service, the CDRX dormant state is kept, and the scheduling request is sent after the CDRX dormant state is finished. The embodiment of the application determines whether to wake up from a CDRX sleep state by judging whether the first service is a preset service or not and based on a judgment result. Therefore, the terminal equipment can stop the dormant state only when sending the scheduling request corresponding to the preset service, and the situation that the terminal equipment needs to stop the dormant state and send the scheduling request for each first service is avoided. Thus, the power consumption of the device is reduced.
Description
Technical Field
The present application relates to the field of communications, and in particular, to a method, an apparatus, a device, a storage medium, and a product for sending a scheduling request.
Background
With the continuous development of communication technology, the protocols of the communication industry are continuously updated and improved. In the 3GPP 38.321 protocol of the third Generation Partnership Project (3 rd Generation Partnership Project, 3 GPP), it is specified that when a User Equipment (UE) enters a Connected Discontinuous Reception (CDRX) dormant state, monitoring of a Physical Downlink Control Channel (PDCCH) is stopped while an uplink transmission is prevented from affecting the CDRX dormant state.
However, when the user equipment UE has a Scheduling Request (SR), the user equipment UE needs to wake up forcibly from the CDRX dormant state to transmit the Scheduling request SR. This SR request transmission interrupts the CDRX sleep state of the UE, resulting in a loss of power consumption.
Disclosure of Invention
The application provides a scheduling request sending method, device, equipment, storage medium and product, and reduces power consumption loss of terminal equipment.
In a first aspect, an embodiment of the present application provides a scheduling request sending method, including:
when the connection discontinuous reception CDRX dormant state is in the state, generating a scheduling request corresponding to a first service;
if the first service is a preset service, stopping the CDRX dormant state and sending the scheduling request;
if the first service is not the preset service, keeping the CDRX dormant state, and sending the scheduling request after the CDRX dormant state is finished.
In one possible embodiment, the stopping the CDRX dormant state and sending the scheduling request includes:
determining a target time slot corresponding to the scheduling request;
and stopping the CDRX sleep state, and sending the scheduling request in the target time slot.
In one possible embodiment, the stopping the CDRX sleep state and transmitting the scheduling request in the target timeslot includes:
stopping the CDRX dormant state at a time slot before the target time slot, and sending the scheduling request at the target time slot.
In one possible embodiment, the stopping the CDRX dormant state and sending the scheduling request includes:
determining a duration of the CDRX dormant state;
stopping the CDRX dormant state and sending the scheduling request when the duration is less than or equal to a preset duration;
and under the condition that the duration is longer than the preset duration, stopping the CDRX dormant state, performing wireless channel pre-synchronization, and sending the scheduling request after the wireless channel pre-synchronization is completed.
In one possible embodiment, the stopping the CDRX dormant state for radio channel pre-synchronization includes:
determining a target time slot corresponding to the scheduling request;
determining a target time based on the target time slot and the sending time of the synchronous broadcast signal; the synchronous broadcast signal is a synchronous signal periodically sent to the terminal equipment by the base station;
stopping the CDRX dormant state at the target time;
receiving the synchronization broadcast signal and performing the wireless channel pre-synchronization based on the synchronization broadcast signal.
In a possible implementation, the determining a target time based on the target time slot and a transmission time of a synchronization broadcast signal includes:
if the sending time of the synchronous broadcast signal exists before the target time slot after the scheduling request is generated, determining the sending time of one synchronous broadcast signal which is before the target time slot and is closest to the target time slot as the target time.
In a possible implementation, the determining a target time based on the target time slot and a transmission time of a synchronization broadcast signal includes:
if the sending time of the synchronous broadcast signal does not exist after the scheduling request is generated and before the target time slot, determining an alternative target time slot corresponding to the next sending window of the scheduling request;
and determining the transmission time of the synchronous broadcast signal which is before the alternative target time slot and is closest to the alternative target time slot as the target time.
In a possible embodiment, the preset service satisfies at least one of the following conditions:
the priority of the preset service is greater than or equal to the preset priority;
the time delay requirement of the preset service is less than or equal to the preset time delay;
the preset service is a service in a preset service list.
In a second aspect, an embodiment of the present application provides a scheduling request transmitting apparatus, including: a generating module and a sending module, wherein,
the generation module is used for generating a scheduling request corresponding to a first service when the connection discontinuous reception CDRX dormant state is in a connection discontinuous reception CDRX dormant state;
the sending module is configured to stop the CDRX dormant state and send the scheduling request if the first service is a preset service;
the sending module is further configured to, if the first service is not the preset service, maintain the CDRX dormant state, and send the scheduling request after the CDRX dormant state is ended.
In a possible implementation manner, the sending module is specifically configured to:
determining a target time slot corresponding to the scheduling request;
and stopping the CDRX sleep state, and sending the scheduling request in the target time slot.
In a possible implementation manner, the sending module is further specifically configured to:
stopping the CDRX dormant state at a time slot before the target time slot, and sending the scheduling request at the target time slot.
In a possible implementation manner, the sending module comprises a determining submodule and a sending submodule; wherein the content of the first and second substances,
the determining submodule is used for determining the duration of the CDRX dormant state;
the sending submodule is used for stopping the CDRX dormant state and sending the scheduling request under the condition that the duration is less than or equal to a preset duration;
the sending submodule is further configured to, when the duration is greater than the preset duration, stop the CDRX dormant state and perform wireless channel pre-synchronization, and send the scheduling request after the wireless channel pre-synchronization is completed.
In a possible implementation, the sending submodule is specifically configured to:
determining a target time slot corresponding to the scheduling request;
determining a target time based on the target time slot and the sending time of the synchronous broadcast signal; the synchronous broadcast signal is a synchronous signal periodically sent to the terminal equipment by the base station;
stopping the CDRX dormant state at the target time;
receiving the synchronization broadcast signal and performing the wireless channel pre-synchronization based on the synchronization broadcast signal.
In a possible implementation manner, the sending sub-module is further specifically configured to:
if the sending time of the synchronous broadcast signal exists before the target time slot after the scheduling request is generated, determining the sending time of one synchronous broadcast signal which is before the target time slot and is closest to the target time slot as the target time.
In a possible implementation manner, the sending sub-module is further specifically configured to:
if the sending time of the synchronous broadcast signal does not exist after the scheduling request is generated and before the target time slot, determining an alternative target time slot corresponding to the next sending window of the scheduling request;
and determining the transmission time of the synchronous broadcast signal which is before the alternative target time slot and is closest to the alternative target time slot as the target time.
In a possible embodiment, the preset service satisfies at least one of the following conditions:
the priority of the preset service is greater than or equal to the preset priority;
the time delay requirement of the preset service is less than or equal to the preset time delay;
the preset service is a service in a preset service list.
In a third aspect, an embodiment of the present application provides a scheduling request sending device, including: a processor, a memory;
the memory stores computer-executable instructions;
the processor executes computer-executable instructions stored by the memory, causing the processor to perform the method of any of the first aspects.
In a fourth aspect, embodiments of the present application provide a computer-readable storage medium having stored therein computer-executable instructions for implementing the method of any one of the first aspect when the computer-executable instructions are executed by a processor.
In a fifth aspect, the present application provides a computer program product, which includes a computer program that, when executed by a processor, implements the method of any one of the first aspect.
The scheduling request sending method, device, equipment, storage medium and product provided by the embodiment of the application generate a scheduling request corresponding to a first service when the CDRX dormant state is received in a connection non-continuity manner; if the first service is a preset service, stopping the CDRX dormant state and sending a scheduling request; if the first service is not the preset service, keeping the CDRX dormant state, and sending a scheduling request after the CDRX dormant state is finished. The embodiment of the application determines whether to wake up from a CDRX sleep state by judging whether the first service is a preset service or not and based on a judgment result. Therefore, the terminal equipment can stop the dormant state only when sending the scheduling request corresponding to the preset service, and the situation that the terminal equipment needs to stop the dormant state and send the scheduling request for each first service is avoided. Thus, the power consumption of the device is reduced.
Drawings
FIG. 1 is a schematic diagram of a network architecture;
fig. 2 is a schematic flowchart of a scheduling request sending method according to an embodiment of the present application;
fig. 3 is a flowchart illustrating another scheduling request sending method according to an embodiment of the present application;
fig. 4 is a logic diagram of a scheduling request sending method according to an embodiment of the present application;
fig. 5 is a schematic diagram of an implementation process of a scheduling request sending method according to an embodiment of the present application;
fig. 6 is a flowchart illustrating a further scheduling request sending method according to an embodiment of the present application;
fig. 7 is a logic diagram of another scheduling request sending method according to an embodiment of the present application;
fig. 8 is a logic diagram of another scheduling request sending method according to an embodiment of the present application;
fig. 9 is a schematic diagram illustrating an implementation process of another scheduling request sending method according to an embodiment of the present application;
fig. 10 is a schematic structural diagram of a scheduling request sending apparatus according to an embodiment of the present application;
fig. 11 is a schematic structural diagram of a scheduling request sending device according to an embodiment of the present application.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
It should be noted that, in this document, 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 an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Fig. 1 is a schematic diagram of a network architecture. Referring to fig. 1, the network architecture includes a terminal device 101 and a base station 102, and the terminal device 101 is connected to the base station 102. The number of the base stations 102 may be multiple, and the terminal device may be user equipment UE in various forms, and specifically may refer to a 5G New air interface (NR) terminal, a 5G chip module, and the like.
In the using process, the terminal device UE does not always perform effective information interaction with the network, nor always perform an upload or download service. Most of the time, the UE and the network are not data interactive, in which case the power consumption is large if the UE still continuously monitors the PDCCH subframe of the physical downlink control channel. Therefore, a Discontinuous Reception (DRX) mechanism is introduced on the premise of ensuring that data can be transmitted effectively. Under the mechanism, the UE can enter a dormant state when no information interaction exists between the UE and the network, so that the power of the UE can be saved. DRX is divided into two types, one is a DRX mechanism in an idle state, and the other is a DRX mechanism in a connected state, i.e., CDRX. The embodiment of the application aims at the sending process of the scheduling request SR after the UE enters the CDRX dormant state.
In the related art, after the terminal device UE enters the CDRX dormant state, the UE stops monitoring the downlink PDCCH channel, and does not send various uplink signal reports to avoid the influence of uplink transmission on the CDRX dormant state. The various uplink Signal reports include a Channel Sounding Reference Signal (SRS), Channel State Information (CSI), and the like. However, if there is a scheduling request for the terminal equipment UE, according to the protocol of 3gpp.38.321, the terminal equipment UE will forcibly wake up from CDRX dormant state to send a scheduling request SR to the base station to request the base station to allocate resources for uplink data transmission. In this SR request sending manner, the terminal device UE needs to wake up forcibly from the CDRX dormant state for all services, which causes power consumption loss, and increases power consumption of the terminal device.
In the embodiment of the application, when the terminal device UE is in a CDRX dormant state, a scheduling request corresponding to a first service is generated; if the first service is a preset service, stopping the CDRX dormant state of the UE and sending an SR scheduling request; if the first service is not the preset service, the CDRX dormant state is maintained, and the scheduling request is sent after the CDRX dormant state is finished. Therefore, the terminal equipment UE judges the first service and stops the dormant state only when sending the scheduling request corresponding to the preset service, thereby avoiding the condition that the terminal equipment needs to wake up forcibly and send the scheduling request aiming at each first service. Therefore, the power consumption of the terminal equipment is reduced, and the electric quantity is saved.
The embodiments shown in the present application will be described in detail below with reference to specific examples. It should be noted that the following embodiments may exist independently or may be combined with each other, and description of the same or similar contents is not repeated in different embodiments.
Next, the procedure of scheduling request transmission will be described with reference to the embodiment shown in fig. 2.
Fig. 2 is a flowchart illustrating a scheduling request sending method according to an embodiment of the present application. Referring to fig. 2, the method may include:
s201, when the connection discontinuous reception CDRX dormant state is in, generating a scheduling request corresponding to a first service.
In this embodiment, the first service may refer to various services that the terminal device needs to perform data transmission with the base station, such as a voice service, page loading, video transmission, and the like. In the case that the application layer of the terminal device has a communication requirement, the terminal device may generate a scheduling request SR in order to request a resource for uplink data transmission.
S202, if the first service is a preset service, stopping the CDRX dormant state and sending a scheduling request.
In the embodiment of the present application, the preset service may be a high-priority service or a service sensitive to delay, such as a voice service, an online game, a video call, or a video conference. After generating the scheduling request corresponding to the first service, the terminal device may first determine whether the first service is a preset service. If so, it indicates that the first service has a higher priority or is sensitive to delay, and at this time, the terminal device stops CDRX dormant state, i.e., forcibly wakes up from CDRX dormant state, and sends a scheduling request to the base station, so that the network side of the base station can respond quickly, and low-delay communication between the terminal device and the base station is ensured.
And S203, if the first service is not the preset service, keeping the CDRX dormant state, and sending a scheduling request after the CDRX dormant state is finished.
The terminal device UE enters the CDRX dormant state periodically, and a typical CDRX Cycle (CDRX Cycle) includes two procedures, namely an awake state (On Duration Time) and an Inactive Time. In an awakening state, terminal equipment (UE) needs to monitor downlink PDCCH subframes; in the dormant state, the terminal device UE does not need to monitor the downlink PDCCH subframe.
In this embodiment, after generating a scheduling request corresponding to a first service, if it is determined that the first service is not a preset service, the terminal device indicates that the priority of the first service is low and is not sensitive to a delay requirement, specifically, for example, a file transmission service or a network video loading service. At this time, the terminal device may maintain the current CDRX dormant state, and send the scheduling request corresponding to the first service to the base station after the terminal device UE ends the CDRX dormant state and enters the awake state.
The scheduling request sending method provided by the embodiment of the application generates a scheduling request corresponding to a first service when the mobile terminal is in a Connection Discontinuous Reception (CDRX) dormant state; if the first service is a preset service, stopping the CDRX dormant state and sending a scheduling request; if the first service is not the preset service, keeping the CDRX dormant state, and sending a scheduling request after the CDRX dormant state is finished. The embodiment of the application determines whether to wake up from a CDRX sleep state by judging whether the first service is a preset service or not and based on a judgment result. Therefore, the terminal equipment can stop the dormant state only when sending the scheduling request corresponding to the preset service, and the condition that the terminal equipment needs to wake up forcibly and send the scheduling request for each first service is avoided. Thus, the power consumption of the device is reduced.
On the basis of the above embodiment, the following describes in detail the sending process of the scheduling request with reference to the embodiment shown in fig. 3.
Fig. 3 is a flowchart illustrating another scheduling request sending method according to an embodiment of the present application. Referring to fig. 3, the method may include:
s301, when the connection discontinuous reception CDRX dormant state is in, generating a scheduling request corresponding to the first service.
S302, if the first service is not the preset service, keeping the CDRX dormant state, and sending a scheduling request after the CDRX dormant state is finished.
For the specific implementation process of step S301 and step S302, reference may be made to step 201 and step 203, which is not described in detail in this embodiment of the application.
And S303, if the first service is a preset service, determining a target time slot corresponding to the scheduling request.
In the wireless interactive communication process between the terminal equipment UE and the base station, a wireless Frame (Frame) is a basic data transmission period of a wireless network, and a subframe is an allocation unit of an uplink subframe and a downlink subframe. For example, the period of one radio frame is usually 10 ms, and the period of one subframe may be 1 ms. Further, one subframe may include a plurality of slots, which may refer to a minimum unit for data scheduling and synchronization, and one slot may include 14 or 12 symbol periods according to whether there is a Cyclic Prefix (CP). Where the symbol (symbol) is a basic unit of modulation, and may be determined based on sub-carrier space (SCS). Since the 5G NR provides various subcarrier intervals, the frame structure of the 5G is more flexible, and there are various situations in the specific periods of the time slots, the subframes, and the like, which can be specifically determined according to the network configuration.
When the terminal apparatus UE transmits the scheduling request, the transmission timing of the scheduling request is not arbitrary, but is limited by the transmission condition of the scheduling request. Based on the network configuration, the UE may have only one opportunity to transmit a scheduling request, i.e., only one transmission window for SR requests, in a period of each subframe. The target timeslot in this embodiment may refer to a timeslot number (Slot) corresponding to a transmission window capable of transmitting a scheduling request. For example, in one subframe period, there are 20 slots of 0 to 19, and the slot numbers are 0 to 19, respectively. Based on the transmission condition of the scheduling request, the terminal device UE calculates that it can transmit the scheduling request only in the Slot15, where the target Slot is Slot No. 15.
S304, stopping the CDRX dormant state in the previous time slot of the target time slot, and sending a scheduling request in the target time slot.
In this embodiment of the present application, after determining a target timeslot where a window capable of sending a scheduling request is located, a terminal device may temporarily maintain a CDRX dormant state, wait until a previous timeslot of the target timeslot wakes up from the CDRX dormant state, and then directly send the scheduling request in the target timeslot. In this way, the terminal device UE only needs to wake up in the previous time slot of the target time slot, and does not need to stop the CDRX sleep state prematurely, thereby further avoiding the loss of power consumption.
In the embodiment shown in fig. 3, when the apparatus is in the connection discontinuous reception CDRX dormant state, a scheduling request corresponding to a first service is generated; if the first service is not the preset service, keeping the CDRX dormant state, and sending a scheduling request after the CDRX dormant state is finished; if the first service is a preset service, determining a target time slot corresponding to the scheduling request; and stopping the CDRX dormant state in the time slot before the target time slot, and sending a scheduling request in the target time slot. Therefore, the UE can be ensured to be kept in the CDRX dormant state as far as possible by calculating the target time slot and waking up from the CDRX dormant state in the previous time slot of the target time slot, the loss of power consumption is reduced, and the power consumption of the terminal equipment is reduced.
Exemplarily, fig. 4 is a logic diagram of a scheduling request transmission provided in an embodiment of the present application. As shown in fig. 4, one CDRX sleep cycle includes an awake state and a CDRX sleep state. After the CDRX dormant state start time, the terminal device UE enters the CDRX dormant state. If the terminal equipment UE generates a scheduling request in a first service in the CDRX dormant state, and the first service is a preset service, the terminal equipment UE determines a target time Slot Slot N corresponding to the scheduling request. And then, the terminal equipment UE wakes up in advance in the previous time Slot of the target time Slot, namely the Slot N-1, and then sends a scheduling request in the Slot N of the target time Slot.
Specifically, it is assumed that, in time slot No. 4 in one subframe, a terminal device UE generates a scheduling request of a first service, and the first service is a preset service. The terminal device calculates that the target time Slot is Slot number 18, i.e. Slot 18, the terminal device can wake up in Slot number 17, i.e. Slot 17, and then send a scheduling request in Slot number 18. Therefore, the terminal equipment UE can be kept in the normal dormant state to the maximum extent, and the loss of power consumption is reduced.
Exemplarily, fig. 5 is a schematic diagram of an execution flow of scheduling request transmission according to an embodiment of the present application. As shown in fig. 5, when the terminal device UE is in the CDRX dormant state, if there is a service requirement of the first service in a higher layer such as an application layer, the terminal device generates a scheduling request corresponding to the first service. And then, the terminal equipment judges whether the first service is a preset service. And if the first service is not the preset service, the terminal equipment UE continues to keep the CDRX dormant state, and after the CDRX dormant state of the terminal equipment UE is ended and normally awakened, the terminal equipment UE sends a scheduling request. If the first service is a preset service, the terminal device UE calculates a target time slot sent by the scheduling request, wakes up from the CDRX dormant state in the previous time slot of the target time slot, and finally sends the scheduling request in the target time slot.
Certainly, in this embodiment of the application, after the terminal device generates the scheduling request of the preset service and determines the target timeslot, the CDRX dormant state may also be directly stopped, and the terminal device enters the awake state and sends the scheduling request in the target timeslot. The embodiments of the present application do not limit this.
Fig. 6 is a flowchart illustrating a further scheduling request sending method according to an embodiment of the present application. Referring to fig. 6, the method may include:
s601, when the connection discontinuous reception CDRX dormant state is in, generating a scheduling request corresponding to the first service.
S602, if the first service is not the preset service, maintaining the CDRX dormant state, and sending a scheduling request after the CDRX dormant state is ended.
For the specific implementation process of step S601 and step S602, reference may be made to step 201 and step 203, which is not described in detail in this embodiment of the application.
S603, if the first service is a preset service, determining the duration of the CDRX dormant state.
In this embodiment, the duration may refer to a time after the UE enters the CDRX dormant state, and specifically may refer to a difference between a current time and a starting time when the UE enters the CDRX dormant state.
And S604, stopping the CDRX dormant state and sending a scheduling request under the condition that the duration is less than or equal to the preset duration.
Before entering into CDRX dormant state, the terminal device UE records current radio channel tracking information. The wireless channel tracking information may include parameters such as transmission power, wireless channel, time offset, and frequency offset, and the wireless channel tracking information may accurately reflect the current wireless channel environment. And when the terminal equipment UE is in the CDRX dormant state, if a trigger request corresponding to the preset service is generated, the terminal equipment UE needs to stop the CDRX dormant state and send a scheduling request. At this time, the terminal device UE needs to transmit a scheduling request based on the radio channel tracking information recorded before entering the CDRX sleep state. In this way, whether the radio channel tracking information recorded by the terminal device UE is valid or not determines whether the scheduling request can be successfully transmitted at one time or not.
In this embodiment of the application, the preset duration may refer to a preset time threshold, and may be used to reflect whether the tracking information of the wireless channel is valid. When the duration of the terminal device UE entering the CDRX sleep state is less than or equal to the preset duration, the time that the terminal device UE enters the sleep state is short, the wireless channel tracking information recorded by the terminal device UE before entering the sleep state is still valid, and if the scheduling request is sent according to the valid wireless channel tracking information, it can be ensured that the scheduling request is sent successfully at one time.
When the duration of the terminal equipment UE entering into the CDRX dormant state is longer than the preset duration, the time for the terminal equipment UE entering into the dormant state is longer, the wireless channel environment is changed greatly, the external crystal oscillator is not calibrated all the time, and the time offset and the frequency offset have larger deviations. If the radio channel tracking information recorded by the terminal device UE before entering the sleep state is invalid, and a scheduling request is sent according to the invalid radio channel tracking information, it is easy to cause a failure in sending the scheduling request.
In this step, after determining that the first service is the preset service, the terminal device UE may first determine a duration of entering the CDRX dormant state, and if the duration is less than or equal to the preset duration, it indicates that the duration of entering the CDRX dormant state by the terminal device is shorter, and the radio channel tracking information recorded before the CDRX dormant state is still valid. The terminal device UE may implement the process of sending the scheduling request according to the descriptions in step 303 to step 304, which is not described herein again in this embodiment of the present application.
And S605, determining a target time slot corresponding to the scheduling request under the condition that the duration is longer than the preset duration.
When the duration of the terminal equipment UE entering the CDRX dormant state is longer than the preset duration, it indicates that the terminal equipment UE is in the dormant state for a long time at this time, and the radio channel tracking information recorded before the CDRX dormant state is invalid, and at this time, if the terminal equipment UE directly sends the scheduling request according to the invalid radio channel tracking information, it is easy to cause a failure in sending the scheduling request.
In the embodiment of the application, when the duration is longer than the preset duration, the terminal device UE may determine a target time slot for sending the scheduling request, and subsequently perform presynchronization on a wireless channel according to the target time slot and a synchronous broadcast signal, so as to ensure that the scheduling request is successfully sent at one time.
S606, determining a target time based on the target time slot and the sending time of the synchronous broadcast signal; the synchronization broadcast signal is a synchronization signal periodically transmitted to the terminal device by the base station.
In the embodiment of the present application, a Synchronization broadcast Signal (SSB) may refer to a Signal for performing network Synchronization. The terminal equipment UE may receive the synchronization broadcast signal SSB sent by the base station, and complete synchronization with respect to the network. According to the network configuration, the base station periodically transmits the SSB signal to the terminal device, and the transmission period of the SSB may be 20 milliseconds, and the like, which is not limited in the embodiment of the present application.
It should be noted that, when performing network configuration, both the transmission cycle of the scheduling request and the transmission cycle of the synchronization broadcast signal are not synchronized, that is, in a plurality of slots of one subframe, the base station does not specify the transmission time of the synchronization broadcast signal, and the terminal device needs to calculate based on the transmission cycle of the SSB to obtain each transmission time of the SSB. And then, determining the target time of forced wake-up of the terminal equipment UE based on the target time slot and the transmitting time of the SSB.
In one possible implementation, the determination process of the target time in step S606 has the following two implementations:
in the first implementation, if there is a transmission time of the synchronized broadcast signal after the scheduling request is generated and before the target time slot, the transmission time of the synchronized broadcast signal that is before the target time slot and closest to the target time slot is determined as the target time.
If the sending time of the synchronous broadcast signal does not exist after the scheduling request is generated and before the target time slot, determining an alternative target time slot corresponding to the next sending window of the scheduling request; and determining the transmission time of the synchronous broadcast signal which is before the alternative target time slot and is closest to the alternative target time slot as the target time.
In the embodiment of the present application, after the scheduling request corresponding to the preset service is generated, before the target timeslot, there may be a transmission time of the synchronization broadcast signal SSB, or there may not be a transmission time of the SSB. If the SSB exists, the terminal equipment UE takes the SSB sending time closest to the target time slot as the target time; if not, the terminal device UE calculates a sending window of the next scheduling request, that is, the candidate target time slot, and takes the SSB sending time before the candidate target time slot and closest to the candidate target time slot as the target time.
For example, for slots No. 0 to 19 of one subframe, assuming that a scheduling request is generated when the number of slots is 12, the UE calculates that the target Slot is 18, and there may be a transmission time of an SSB between Slot12 and Slot 18, or there may not be a transmission time of an SSB. If the Slot 14 or the Slot16 is the SSB transmission time, the terminal device UE sets the Slot16, which is the SSB transmission time closest to the target Slot, as the target time. If the target time Slot does not exist, the terminal equipment UE calculates a sending window of the scheduling request in the next subframe, namely the candidate target time Slot, and if the candidate target time Slot is the Slot15, the terminal equipment UE takes the Slot12 in the next subframe period as the target time Slot if the sending time of three SSBs (the Slot4, the Slot8 and the Slot 12) exist before the candidate target time Slot 15.
And S607, stopping the CDRX dormant state at the target time.
And S608, receiving the synchronous broadcast signal and performing wireless channel pre-synchronization based on the synchronous broadcast signal.
And S609, sending a scheduling request after the wireless channel presynchronization is completed.
In the embodiment of the present application, after the target time is determined, the terminal device UE may wake up from the CDRX sleep state at the target time, receive the synchronization broadcast signal SSB, perform Presynchronization (PRESYNC) of the radio channel based on the SSB signal, and implement synchronization of the radio channel and calibration of time offset and frequency offset. And finally, sending a scheduling request after the wireless channel presynchronization is completed. Thus, the one-time successful transmission of the scheduling request can be ensured.
In the embodiment shown in fig. 6, when the CDRX dormant state is received in a connection non-continuity manner, a scheduling request corresponding to a first service is generated; if the first service is not the preset service, keeping the CDRX dormant state, and sending a scheduling request after the CDRX dormant state is finished; if the first service is a preset service, determining the duration of the CDRX dormant state; stopping the CDRX dormant state and sending a scheduling request under the condition that the duration is less than or equal to the preset duration; determining a target time slot corresponding to the scheduling request under the condition that the duration is longer than the preset duration; determining a target time based on the target time slot and the sending time of the synchronous broadcast signal; the synchronous broadcast signal is a synchronous signal periodically sent to the terminal equipment by the base station; the terminal equipment UE stops the CDRX dormant state at a target moment; receiving a synchronous broadcast signal and performing wireless channel pre-synchronization based on the synchronous broadcast signal; and sending a scheduling request after the wireless channel presynchronization is completed. Therefore, whether effective wireless channel tracking information exists in the terminal equipment UE is determined through the judgment of the duration and the preset duration, and the awakening time of the terminal equipment is determined by determining the target time based on the target time slot and the sending time of the SSB, so that the power consumption of the equipment is reduced, the one-time success of sending the scheduling request is ensured through the pre-synchronization of the wireless channel, and the introduction of network delay is avoided.
Exemplarily, fig. 7 is a logic diagram of another scheduling request sending method provided in the embodiment of the present application. As shown in fig. 7, the terminal device UE generates a scheduling request corresponding to a first service, where the first service is a preset service. If there is a transmission time of the synchronization broadcast signal SSB before the target time slot after the scheduling request is generated, the terminal device UE sets, as the target time, an SSB transmission time that is before the target time slot and closest to the target time slot. And the terminal equipment UE stops the CDRX dormant state at the target moment, receives the SSB signal and performs wireless channel pre-synchronization based on the SSB signal. And after the pre-synchronization of the wireless channel is completed, the terminal equipment UE sends a scheduling request in a target time slot. Thus, the one-time successful transmission of the scheduling request can be ensured.
Exemplarily, fig. 8 is a logic schematic diagram of another scheduling request sending method provided in the embodiment of the present application. As shown in fig. 8, the terminal device UE generates a scheduling request corresponding to a first service, where the first service is a preset service. After the scheduling request is generated, there is no transmission time of the synchronization broadcast signal SSB before the target time slot, which means that the terminal device cannot perform presynchronization before the target time slot, and at this time, even if the scheduling request is transmitted in the target time slot, the transmission cannot be successful at one time. Therefore, the terminal device UE continues to maintain the sleep state in the target time slot. And the terminal equipment UE calculates a sending window of the next scheduling request, namely the alternative target time slot, and takes the SSB sending time before the alternative target time slot and closest to the alternative target time slot as the target time. And the terminal equipment UE stops the CDRX dormant state at the target moment, receives the SSB signal and performs wireless channel pre-synchronization based on the SSB signal. And after the pre-synchronization of the wireless channel is completed, the terminal equipment UE sends a scheduling request in a target time slot. Thus, the one-time success rate of the scheduling request transmission can be ensured.
Exemplarily, fig. 9 is a schematic diagram of an implementation process of another scheduling request sending method according to an embodiment of the present application. As shown in fig. 9, when the terminal device UE is in the CDRX dormant state, if there is a service requirement of the first service in a higher layer such as an application layer, the terminal device generates a scheduling request corresponding to the first service. And then, the terminal equipment judges whether the first service is a preset service. And if the first service is not the preset service, the terminal equipment UE continues to keep the CDRX dormant state, and after the CDRX dormant state of the terminal equipment UE is ended and normally awakened, the terminal equipment UE sends a scheduling request. If the first service is a preset service, the terminal device UE determines whether the duration of entering the CDRX sleep state is longer than a preset duration. If the duration is less than or equal to the preset duration, the wireless channel tracking information recorded by the terminal equipment UE is still valid. And the terminal equipment UE calculates a target time slot sent by the scheduling request, wakes up from a CDRX sleep state in the previous time slot of the target time slot, and finally sends the scheduling request in the target time slot.
And if the duration is longer than the preset duration, the terminal equipment UE does not have effective wireless channel tracking information. The terminal device UE further determines whether there is a transmission time of the synchronization broadcast signal SSB before the scheduling request transmission window, i.e., the target timeslot. If the sending time of the synchronous broadcast signal SSB exists before the target time slot, the terminal equipment UE wakes up at the sending time of the SSB which is before the target time slot and is closest to the target time slot, receives the SSB signal and carries out wireless channel pre-synchronization, and after the wireless channel pre-synchronization is completed, the terminal equipment UE sends a calling request at the target time slot.
If the sending time of the synchronous broadcast signal SSB does not exist before the target time slot, the terminal equipment UE cannot complete the wireless channel pre-synchronization before the target time slot, the terminal equipment UE keeps the CDRX sleep state in the target time slot, and determines the sending window of the next scheduling request, namely the alternative target time slot. And then the terminal equipment UE wakes up at the SSB sending time which is before the alternative target time slot and is closest to the alternative target time slot, receives the SSB signal and carries out wireless channel pre-synchronization, and sends a calling request at the alternative target time slot after the wireless channel pre-synchronization is finished. Therefore, whether the wireless channel tracking information is effective or not is judged, and the target time is determined, so that the terminal equipment UE can perform pre-synchronization of the wireless channel, the power consumption of the equipment is reduced, and the one-time transmission success rate of the scheduling request is ensured.
In addition, it should be noted that, on the basis of any one of the above embodiments, the preset service satisfies at least one of the following conditions:
the priority of the preset service is greater than or equal to the preset priority;
the time delay requirement of the preset service is less than or equal to the preset time delay;
the preset service is a service in a preset service list.
In the embodiment of the present application, the preset priority may refer to a preset priority level, and a service greater than or equal to the preset priority level is a preset service, that is, a high-priority service; the traffic lower than the preset priority is low priority traffic. The preset time delay may refer to a preset delay time, and a service with a time delay requirement less than or equal to the preset time delay is a preset service, that is, a time delay sensitive service; and the service with the time delay requirement larger than the preset time delay is a non-time delay sensitive service. The preset service list may refer to a list composed of preset service types, and the services included in the preset service list are all preset services.
Based on the at least one determination mode, the terminal equipment UE can quickly determine whether the first service is the preset service, and the judgment efficiency and accuracy of the terminal equipment UE are improved.
Fig. 10 is a schematic structural diagram of a scheduling request transmitting apparatus according to an embodiment of the present application. Referring to fig. 10, the scheduling request transmitting apparatus 10 may include: a generating module 11 and a sending module 12, wherein,
the generating module 11 is configured to generate a scheduling request corresponding to a first service when the CDRX dormant state is received in a connection non-continuity manner;
the sending module 12 is configured to, if the first service is a preset service, stop the CDRX dormant state, and send a scheduling request;
the sending module 12 is further configured to, if the first service is not the preset service, maintain the CDRX dormant state, and send the scheduling request after the CDRX dormant state is ended.
The scheduling request sending apparatus provided in the embodiment of the present application may execute the technical solutions shown in the foregoing method embodiments, and the implementation principles and beneficial effects thereof are similar, and are not described herein again.
In a possible implementation, the sending module 12 is specifically configured to:
determining a target time slot corresponding to the scheduling request;
and stopping the CDRX dormant state and sending a scheduling request in the target time slot.
In a possible implementation, the sending module 12 is further specifically configured to:
and stopping the CDRX dormant state in the time slot before the target time slot, and sending a scheduling request in the target time slot.
In a possible embodiment, the sending module 12 includes a determining submodule and a sending submodule; wherein the content of the first and second substances,
the determining submodule is used for determining the duration of the CDRX dormant state;
the sending submodule is used for stopping the CDRX dormant state and sending a scheduling request under the condition that the duration is less than or equal to the preset duration;
the sending submodule is further used for stopping the CDRX dormant state and performing wireless channel pre-synchronization under the condition that the duration is longer than the preset duration, and sending a scheduling request after the wireless channel pre-synchronization is completed.
In a possible implementation, the sending submodule is specifically configured to:
determining a target time slot corresponding to the scheduling request;
determining a target time based on the target time slot and the sending time of the synchronous broadcast signal; the synchronous broadcast signal is a synchronous signal periodically sent to the terminal equipment by the base station;
stopping the CDRX dormant state at a target moment;
receiving the synchronization broadcast signal and performing wireless channel pre-synchronization based on the synchronization broadcast signal.
In a possible implementation, the sending submodule is further specifically configured to:
if the transmission time of the synchronous broadcast signal exists before the target time slot after the scheduling request is generated, the transmission time of one synchronous broadcast signal which is before the target time slot and is closest to the target time slot is determined as the target time.
In a possible implementation, the sending submodule is further specifically configured to:
if the sending time of the synchronous broadcast signal does not exist after the scheduling request is generated and before the target time slot, determining an alternative target time slot corresponding to the next sending window of the scheduling request;
and determining the transmission time of the synchronous broadcast signal which is before the alternative target time slot and is closest to the alternative target time slot as the target time.
In one possible embodiment, the preset service satisfies at least one of the following conditions:
the priority of the preset service is greater than or equal to the preset priority;
the time delay requirement of the preset service is less than or equal to the preset time delay;
the preset service is a service in a preset service list.
The scheduling request sending apparatus provided in the embodiment of the present application may execute the technical solutions shown in the foregoing method embodiments, and the implementation principles and beneficial effects thereof are similar, and are not described herein again. It should be noted that the apparatus may be a chip or a chip module, which is not limited in this embodiment of the application.
Fig. 11 is a schematic structural diagram of a scheduling request sending device according to an embodiment of the present application. Referring to fig. 11, the scheduling request transmitting apparatus 20 may include: memory 21, processor 22. Illustratively, the memory 21, the processor 22, and the various parts are interconnected by a bus 23.
the processor 22 is configured to execute the program instructions stored in the memory, so as to enable the processor to execute the scheduling request sending method according to the above embodiments.
The scheduling request sending device shown in the embodiment of fig. 11 may execute the technical solution shown in the foregoing method embodiment, and the implementation principle and the beneficial effect thereof are similar, and details are not repeated here.
An embodiment of the present application provides a computer-readable storage medium, in which computer-executable instructions are stored, and when the computer-executable instructions are executed by a processor, the computer-readable storage medium is configured to implement the scheduling request sending method.
An embodiment of the present application may further provide a computer program product, which includes a computer program, and when the computer program is executed by a processor, the method may implement the scheduling request sending method.
All or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The aforementioned program may be stored in a readable memory. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned memory (storage medium) includes: read-only memory (ROM), RAM, flash memory, hard disk, solid state disk, magnetic tape (magnetic tape), floppy disk (flexible disk), optical disk (optical disk), and any combination thereof.
Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processing unit of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processing unit of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the embodiments of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to encompass such modifications and variations.
In the present application, the terms "include" and variations thereof may refer to non-limiting inclusions; the term "or" and variations thereof may mean "and/or". The terms "first," "second," and the like in this application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. In the present application, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
Claims (12)
1. A method for sending a scheduling request, comprising:
when the connection discontinuous reception CDRX dormant state is in the state, generating a scheduling request corresponding to a first service;
if the first service is a preset service, stopping the CDRX dormant state and sending the scheduling request;
if the first service is not the preset service, keeping the CDRX dormant state, and sending the scheduling request after the CDRX dormant state is finished.
2. The method of claim 1, wherein the ceasing the CDRX dormant state and sending the scheduling request comprises:
determining a target time slot corresponding to the scheduling request;
and stopping the CDRX sleep state, and sending the scheduling request in the target time slot.
3. The method of claim 2, wherein the ceasing the CDRX dormant state and transmitting the scheduling request in the target time slot comprises:
stopping the CDRX dormant state at a time slot before the target time slot, and sending the scheduling request at the target time slot.
4. The method of claim 1, wherein the ceasing the CDRX dormant state and sending the scheduling request comprises:
determining a duration of the CDRX dormant state;
stopping the CDRX dormant state and sending the scheduling request under the condition that the duration is less than or equal to a preset duration;
and under the condition that the duration is longer than the preset duration, stopping the CDRX dormant state, performing wireless channel pre-synchronization, and sending the scheduling request after the wireless channel pre-synchronization is completed.
5. The method of claim 4, wherein stopping the CDRX dormant state for radio channel pre-synchronization comprises:
determining a target time slot corresponding to the scheduling request;
determining a target time based on the target time slot and the sending time of the synchronous broadcast signal; the synchronous broadcast signal is a synchronous signal periodically sent to the terminal equipment by the base station;
stopping the CDRX dormant state at the target time;
receiving the synchronization broadcast signal and performing the wireless channel pre-synchronization based on the synchronization broadcast signal.
6. The method of claim 5, wherein determining a target time based on the target time slot and a transmission time of a synchronization broadcast signal comprises:
if the sending time of the synchronous broadcast signal exists before the target time slot after the scheduling request is generated, determining the sending time of one synchronous broadcast signal which is before the target time slot and is closest to the target time slot as the target time.
7. The method of claim 5, wherein determining a target time based on the target time slot and a transmission time of a synchronization broadcast signal comprises:
if the sending time of the synchronous broadcast signal does not exist after the scheduling request is generated and before the target time slot, determining an alternative target time slot corresponding to the next sending window of the scheduling request;
and determining the transmission time of the synchronous broadcast signal which is before the alternative target time slot and is closest to the alternative target time slot as the target time.
8. The method according to any one of claims 1 to 7, wherein the preset service satisfies at least one of the following conditions:
the priority of the preset service is greater than or equal to the preset priority;
the time delay requirement of the preset service is less than or equal to the preset time delay;
the preset service is a service in a preset service list.
9. A scheduling request transmission apparatus, comprising: a generating module and a sending module, wherein,
the generation module is used for generating a scheduling request corresponding to a first service when the connection discontinuous reception CDRX dormant state is in a connection discontinuous reception CDRX dormant state;
the sending module is configured to stop the CDRX dormant state and send the scheduling request if the first service is a preset service;
the sending module is further configured to, if the first service is not the preset service, maintain the CDRX dormant state, and send the scheduling request after the CDRX dormant state is ended.
10. A scheduling request transmission apparatus, comprising: a processor, a memory;
the memory stores computer-executable instructions;
the processor executes computer-executable instructions stored by the memory, causing the processor to perform the method of any of claims 1 to 8.
11. A computer-readable storage medium having computer-executable instructions stored thereon, which when executed by a processor, perform the method of any one of claims 1 to 8.
12. A computer program product, characterized in that it comprises a computer program which, when executed by a processor, implements the method of any one of claims 1 to 8.
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Application publication date: 20220809 |