Method for transmitting scheduling request to base station by user equipment and user equipment

Abstract

The present invention provides a method for transmitting a scheduling request (SR) to a base station by a user equipment and a user equipment. The method comprises: for a pending scheduling request to be transmitted, i.e., a pending SR, if the value of an SR counter is less than the maximum SR transmission quantity, instructing a physical layer to transmit the pending SR on a valid PUCCH resource, the SR counter representing the quantity of transmitted pending SRs, and being reset as an initial value when there is no other SRs in a pending state while a certain SR is triggered; and when a serving cell corresponding to the valid PUCCH resource is configured with discontinuous transmission (DTX), a DTX function is activated and a first condition is satisfied, increasing the value of the SR counter by a corresponding value, the first condition comprising at least one of the following: the valid PUCCH resource used for transmitting the pending SR does not overlap the DTX inactive time of the serving cell, and the transmission occasion of the pending SR does not overlap the DTX inactive time of the serving cell.

Description

Method for sending scheduling request from user equipment to base station and user equipment Technical Field

[0001] The present invention relates to the field of wireless communication technology, and more particularly, to a method for sending a scheduling request from a user equipment to a base station and corresponding user equipment. Background Art

[0002] Network energy saving helps reduce environmental impact and save operator costs. By lengthening the time intervals for the base station to continuously receive and send data and shutting down the transmission and reception of some symbols, the base station can be put into a dormant state, or the cell where it is located can be put into a network energy saving mode, thereby reducing the power consumption of the base station and achieving network energy saving. For the above reasons, in December 2022, at the 3rd Generation Partnership Project (3GPP) RAN#98e plenary meeting, the NR network energy saving work item for version 18 (see non-patent document: RP-223540 New WID: Network energy savings for NR) was approved. One of the goals of this work item is to enhance cell DRX and cell DTX in the RRC connected state, that is, network discontinuous reception and network discontinuous transmission, so as to achieve network energy saving.

[0003] The present invention discusses how the UE triggers and transmits a scheduling request after the introduction of cell DRX and / or cell DTX, how to trigger a random access procedure related to the scheduling request, and how the UE requests activation / deactivation of cell DRX and / or cell DTX.

[0004] Summary of the Invention

[0005] The object of the present invention is to provide a method for sending a scheduling request from a user equipment to a base station and a user equipment, which can avoid degradation of service performance of a UE due to discontinuous transmission by a base station.

[0006] According to one aspect of the present invention, a method for sending a scheduling request by a user equipment to a base station is provided, comprising: for a pending scheduling request in a pending SR state, i.e., a pending SR, if the value of an SR counter is less than the maximum number of SRs sent, instructing the physical layer to send the pending SR on a valid PUCCH resource, the SR counter representing the number of pending SRs sent, and being reset to an initial value when a certain SR is triggered and there are no other SRs in a pending state; and when a service cell corresponding to the valid PUCCH resource is configured with discontinuous transmission, i.e., DTX, and the DTX function is activated and a first condition is met, increasing the value of the SR counter by a corresponding value, the first condition comprising at least one of the following: the valid PUCCH resource for sending the pending SR does not overlap with the non-activation time of DTX of the service cell; the transmission timing of the pending SR does not overlap with the non-activation time of DTX of the service cell.

[0007] According to another aspect of the present invention, a method for sending a scheduling request by a user equipment to a base station is provided, comprising: for a pending scheduling request, i.e., a pending SR, in a pending state, if there is a valid PUCCH resource for sending the pending SR, and when a service cell corresponding to the valid PUCCH resource is configured with discontinuous transmission, i.e., DTX, determining whether a sendable condition is currently met, the sendable condition indicating that the pending SR can be sent to the base station; and sending the pending SR on the valid PUCCH resource if the sendable condition is met.

[0008] According to the present invention, degradation of UE service performance due to discontinuous transmission by a base station can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] FIG1 is a flowchart of a method for sending a scheduling request from a user equipment to a base station according to an embodiment of the present invention.

[0010] FIG2 is a flowchart of a method for sending a scheduling request by a user equipment to a base station according to another embodiment of the present invention.

[0011] FIG3 is a flowchart of a method for sending a scheduling request from a user equipment to a base station according to embodiment 1 of the present invention.

[0012] FIG4 is a flowchart of a method for sending a scheduling request from a user equipment to a base station according to embodiment 2 of the present invention.

[0013] FIG5 is a flowchart of a method for sending a scheduling request from a user equipment to a base station according to embodiment 3 of the present invention.

[0014] FIG6 is a flowchart of a method for sending a scheduling request from a user equipment to a base station according to embodiment 4 of the present invention.

[0015] FIG7 is a flowchart of a method for sending a scheduling request from a user equipment to a base station according to embodiment 5 of the present invention.

[0016] FIG8 is a flowchart of a method for sending a scheduling request from a user equipment to a base station according to embodiment 6 of the present invention.

[0017] FIG9 is a flowchart of a method for sending a scheduling request from a user equipment to a base station according to embodiment 7 of the present invention.

[0018] FIG10 is a simplified structural block diagram of a user equipment UE according to the present invention. DETAILED DESCRIPTION

[0019] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the present invention is not limited to the specific embodiments described below. In addition, for the sake of simplicity, detailed descriptions of known technologies that are not directly related to the present invention are omitted to prevent confusion in understanding the present invention.

[0020] The following describes some of the terms involved in this invention. The specific meanings of the terms can be found in the latest 3GPP standards.

[0021] UE:User Equipment

[0022] NR: New Radio, a new generation of wireless technology

[0023] MAC: Medium Access Control

[0024] MAC CE: MAC control element

[0025] RRC: Radio Resource Control

[0026] RRC_CONNECTED: RRC connected state

[0027] RRC_INACTIVE: RRC inactive state

[0028] RRC_IDLE: RRC idle state

[0029] RAN: Radio Access Network, wireless access layer

[0030] PDCCH: Physical downlink control channel, physical downlink control channel

[0031] PUCCH: Physical Uplink Control Channel, physical uplink control channel

[0032] PUSCH: Physical Uplink Shared Channel, physical uplink shared channel

[0033] PBCH: Physical broadcast channel

[0034] SFN:System Frame Number system frame number

[0035] PDU: Protocol Data Unit

[0036] SSB: SS / PBCH block, synchronization signal / physical broadcast channel block

[0037] DCI: Downlink Control Information

[0038] C-RNTI: Cell Radio Network Temporary Identifier

[0039] RSRP: Reference Signal Received Power

[0040] RSRQ: Reference Signal Received Quality

[0041] SpCell: Special Cell, including PCell and PSCell

[0042] DC: Dual Connectivity

[0043] MCG: Master Cell Group

[0044] SCG: Secondary Cell Group

[0045] PCell: Primary Cell

[0046] PSCell: Primary SCG Cell SCG main cell

[0047] MIB: Master Information Block, main message block

[0048] DRX: Discontinuous Reception

[0049] DTX: Discontinuous Transmission

[0050] SIB: System Information Block, system message block

[0051] NES: network energy saving

[0052] gNB: the next Generation Node B

[0053] RLF: Radio Link Failure, radio link failure

[0054] SN: Sequence Number

[0055] CN: Core Network

[0056] SR: Scheduling Request

[0057] UL-SCH: Uplink Shared Channel, uplink shared channel

[0058] BWP: Bandwidth Part, bandwidth part

[0059] LBT: Listen Before Talk

[0060] CSI: Channel State Information

[0061] SRS: Sounding Reference Signal, channel sounding reference signal

[0062] In the present invention, network (network or NW), base station (base station or gNB or eNB) and RAN can be used interchangeably. The network can be a long-term evolution LTE network, a new radio access technology (New RAT, NR) network, an enhanced long-term evolution eLTE network, or other networks defined in subsequent evolution versions of 3GPP.

[0063] In the present invention, user equipment UE may refer to a device that supports network energy saving, may refer to a device that supports Cell DRX and / or Cell DTX, or may refer to other types of NR devices or LTE devices.

[0064] In the present invention, the terms "feedback," "submit," "report," "send," "transmit," "inform," "indicate," and "provide" may be used interchangeably. The terms "use," "make available," "apply," "implement," "enable," "activate," "perform," and "do" may be used interchangeably.

[0065] In the present invention, "associate", "correspond" and "map" can be used interchangeably.

[0066] In the present invention, configure and reconfigure can be used interchangeably, and receive, detect, monitor, and decode can be used interchangeably.

[0067] In the present invention, expected and preferred can be used interchangeably.

[0068] In the present invention, activation period and activation time can be used interchangeably, deactivation period and deactivation time can be used interchangeably, and “deactivation (non-active or deactive)” and “sleep” can be used interchangeably.

[0069] In the present invention, "time" may refer to a time point (time), duration (duration), period (period), etc.

[0070] It should be noted that in this specification, two things connected by "and", "or", or "and / or" may represent different ways of expressing the same meaning in different application scenarios. There may be a relationship of inclusion and being included between the two, and they do not necessarily refer to completely different content.

[0071] Hereinafter, a description is given of related technologies of the present invention.

[0072] SR

[0073] The SR is used by the UE to request uplink resources, such as UL-SCH resources, for new transmission.

[0074] The MAC entity can be configured with zero, one, or multiple SR configurations. An SR configuration consists of a set of PUCCH resources used for SR, which can span different BWPs and different cells.

[0075] Each SR configuration corresponds to one or more logical channels. Each logical channel can be mapped to zero or one SR configuration, which is configured by the RRC. The RRC configures the following parameters for the scheduling request process: sr-ProhibitTimer (for each SR configuration) and sr-TransMax (for each SR configuration). sr-ProhibitTimer: SR prohibit timer, a timer for transmitting SRs on the PUCCH, used to control the interval between two SR transmissions, in milliseconds. sr-TransMax: The maximum number of SR transmissions.

[0076] The UE variable SR_COUNTER in the UE (configured for each SR) is a counter used for the scheduling request process.

[0077] If an SR is triggered and there is no other SR pending corresponding to the same SR configuration, the MAC entity shall set the SR_COUNTER of the corresponding SR configuration to 0. When an SR is triggered, it shall be considered pending until it is canceled.

[0078] Valid PUCCH resources: Only the PUCCH resources on the BWP that is active at the time of SR transmission are considered valid.

[0079] As long as there is at least one SR pending, the MAC entity performs the following operations on each pending SR:

[0080] - If the MAC entity is not configured with valid PUCCH resources for the pending SR, a random access procedure is initiated on the SpCell and the pending SR is cancelled;

[0081] -Otherwise, for the SR configuration corresponding to the pending SR, if the MAC entity has an SR transmission opportunity (occasion) on the valid PUCCH resource for the SR configuration, and if the sr-ProhibitTimer is not running at the time of SR transmission, and if the PUCCH resource of the SR transmission opportunity does not overlap with the measurement gap, then further determine whether the SR transmission opportunity and the UL-SCH resource, SL-SCH resource overlap, as well as priority information. If the conditions are met (for example: if the MAC entity can perform SR transmission and SL-SCH resource transmission at the same time), the SR transmission is considered to be a high-priority SR transmission; otherwise, the SR transmission is considered to be a low-priority SR transmission.

[0082] -While considering the SR transmission as a high priority SR transmission, the following operations can also be performed:

[0083] If SR_COUNTER <SR-TransMax

[0084] √ Instruct the physical layer to send the SR on (one) valid PUCCH resource of the SR;

[0085] √ If no LBT fault indication is received from the lower layer, SR_COUNTER is incremented by 1 and the sr-ProhibitTimer timer is started;

[0086] Otherwise (i.e., an LBT failure indication is received from the lower layer), if the LBT failure recovery configuration lbt-FailureRecoveryConfig is not configured, SR_COUNTER is incremented by 1.

[0087] Otherwise (i.e., SR_COUNTER>=SR-TransMax), notify RRC to release the PUCCH of all serving cells, notify RRC to release the SRS of all serving cells, clear any configured downlink allocation and uplink authorization, clear any PUSCH resources for semi-persistent CSI reporting, initiate a random access procedure on the SpCell, and cancel all pending SR(s).

[0088] Reasons for triggering an SR include, but are not limited to, reporting UE buffer status (BSR), beam failure recovery, positioning measurement gap activation / deactivation requests, persistent LBT failure recovery, and timing advance reporting. These reasons generally require sending a MAC CE to the network. After sending an SR, the UE monitors the PDCCH to obtain an uplink grant for a new transmission. Upon receiving an uplink grant, it sends a MAC CE that triggers the SR. After sending this MAC CE, the corresponding pending SR is canceled and the corresponding sr-ProhibitTimer is stopped.

[0089] Cell DTX

[0090] In order to save network power consumption, the network can transmit discontinuously. The network can configure CellDTX for the UE so that the UE knows how the network transmits discontinuously within a certain cell. After the network configures Cell DTX for the UE, it can activate Cell DTX by default, and can also activate and / or deactivate Cell DTX through instructions after configuration. The Cell DTX configuration can include information such as the discontinuous transmission period, the duration for starting transmission, the offset for starting transmission, etc. Cell DTX can be divided into two parts: activation time and inactivation time. The network transmits data during the activation time, and does not transmit data during the inactivation time. The activation time of Cell DTX includes a transmission duration (on-duration) at the beginning of the Cell DTX period, and may also include a portion of the transmission duration extended due to various reasons (for example, due to receiving new uplink data from the UE, the transmission duration is extended in order to send a response to the UE). The inactivation time of Cell DTX can be other times in the Cell DTX period excluding the activation time of Cell DTX.

[0091] During the active Cell DTX period, the UE needs to monitor the PDCCH to obtain downlink allocations and / or uplink grants for new transmissions and receive downlink data. This means that the UE's downlink monitoring and reception behavior is not affected. During the inactive Cell DTX period, the UE generally does not need to monitor the PDCCH to obtain downlink allocations and / or uplink grants for new transmissions. However, the UE still needs to monitor paging and obtain system messages. Generally, during the inactive Cell DTX period, the UE's uplink transmission is not affected.

[0092] Cell DRX

[0093] In order to save network power consumption, the network can perform discontinuous reception. The network can configure Cell DRX for the UE so that the UE knows how the network performs discontinuous reception in a certain cell. After the network configures Cell DRX for the UE, it can activate Cell DRX by default, and can also activate and / or deactivate Cell DRX through instructions after configuration. The Cell DRX configuration can include information such as the discontinuous reception period, the duration for starting reception, the offset for starting reception, etc. Cell DRX can be divided into two parts: activation time and inactivation time. During the activation time, the network receives data, and during the inactivation time, the network does not receive data. The activation time of Cell DRX includes a reception duration (on-duration) at the beginning of the Cell DRX cycle, and may also include a portion of the reception duration extended due to various reasons (for example, due to the sending of new downlink data, the reception duration is extended in order to receive the response of the UE). The inactivation time of Cell DRX can be other times in the Cell DRX cycle excluding the activation time of Cell DRX.

[0094] During the Cell DRX activation period, the UE performs normal uplink transmission. During the Cell DRX inactivity period, the UE performs normal random access procedures. However, if an SR is triggered, the SR pending can be sent until the Cell DRX deactivation period ends (i.e., when the Cell DRX activation period begins). This means that if the SR transmission timing overlaps with the Cell DRX inactivity period, the SR will not be sent. Generally, during the Cell DRX inactivity period, the UE's downlink monitoring or reception is not affected.

[0095] During the Cell DTX inactive period, the UE triggers and sends an SR to the network. Because the network is in discontinuous reception (DRX), the UE does not monitor the PDCCH for line link grants for new transmissions and is unable to send the MAC CE that triggers the SR. Consequently, the pending SR persists and cannot be canceled. When the cumulative number of SRs sent exceeds the maximum number, an exception occurs, causing the UE to mistakenly clear PUCCH resources. Furthermore, the introduction of Cell DRX and Cell DTX may degrade UE service performance.

[0096] This invention discusses how, after the introduction of cell DRX and / or cell DTX, a UE triggers and transmits a SR, triggers the SR-related random access procedure, and requests activation / deactivation of cell DRX and / or cell DTX by the UE. This invention avoids abnormal SR situations and prevents the UE from mistakenly clearing PUCCH resources. It also reduces the impact of cell DRX and cell DTX on UE service performance.

[0097] First, the outline of the present invention will be described below with reference to FIG. 1 and FIG. 2 .

[0098] FIG1 is a flowchart of a method for sending a scheduling request from a user equipment to a base station according to an embodiment of the present invention.

[0099] As shown in Figure 1, at step 102, a determination is made as to whether there is a pending SR in the ready-to-send state. If there is a pending SR in the ready-to-send state, at step 104, a determination is made as to whether the value of the SR counter is less than the maximum number of SRs that can be sent. If the value of the SR counter is less than the maximum number of SRs that can be sent, at step 106, the physical layer is instructed to send the pending SR on a valid PUCCH resource.

[0100] Here, the SR counter indicates the number of pending SRs sent, and is reset to an initial value when there are no other pending SRs when a certain SR is triggered.

[0101] Then, at step 108, it is determined whether the following conditions are met: the serving cell corresponding to the valid PUCCH resource is configured with discontinuous transmission (DTX) and the DTX function is activated, and the first condition is met. The first condition includes at least one of the following: the valid PUCCH resource used to send the pending SR does not overlap with the DTX inactive period of the serving cell; the transmission timing of the pending SR does not overlap with the DTX inactive period of the serving cell.

[0102] If the determination result of step 108 is “yes”, then in step 110 , the value of the SR counter is increased by a corresponding value.

[0103] When the determination results in steps S104 and S108 are “No”, the corresponding pending SR may be kept in the pending state and the process shown in FIG1 may be executed again, or the pending SR may be canceled.

[0104] According to the embodiment shown in Figure 1, the SR counter is incremented by the corresponding value when the first condition is met, rather than each time the physical layer is instructed to transmit a pending SR. Pending SRs that do not receive a response from the base station due to overlap with DTX are not counted. As a result, the SR counter value reflects the actual number of pending SRs transmitted that received a response from the base station. Therefore, this embodiment can avoid anomalies caused by the SR counter value not reflecting the actual number of pending SRs transmitted that received a response, and can also prevent, for example, the inappropriate cancellation of pending SRs or the erroneous clearing of PUCCH resources.

[0105] FIG2 is a flowchart of a method for sending a scheduling request by a user equipment to a base station according to another embodiment of the present invention.

[0106] As shown in Figure 2, at step 202, it is determined whether there is a pending SR in a ready-to-send state. If there is a pending SR in a ready-to-send state, at step 204, it is determined whether there is a valid PUCCH resource for sending the pending SR.

[0107] If there is a valid PUCCH resource for sending the pending SR, then in step S206, it is determined that the serving cell corresponding to the valid PUCCH resource is configured with DTX.

[0108] If the serving cell corresponding to the valid PUCCH resource is configured with discontinuous transmission (DTX), in step 208, a determination is made as to whether a transmission condition is currently met. The transmission condition indicates that the pending SR can be sent to the base station. The transmission condition can be set to correspond to the DTX activation time and DTX inactivation time when the DTX function is activated. A DTX cycle includes the DTX activation time when the base station transmits data and the DTX inactivation time when the base station does not transmit data.

[0109] When the transmittable condition is met, at step 210 , the pending SR is transmitted on the valid PUCCH resource.

[0110] In one example, the transmission condition includes a first transmission condition when the DTX function is activated and within the DTX activation time, and a second transmission condition when the DTX function is activated and within the DTX inactivation time. In this case, the pending SR can be transmitted on the valid PUCCH resource when either the first transmission condition or the second transmission condition is met. Specific examples of the first transmission condition and the second transmission condition will be described in detail in the embodiments described below.

[0111] When the determination results in steps 204 and 208 are "No", the pending state of the corresponding pending SR may be maintained and the process shown in Figure 2 may be re-executed, or the pending SR may be canceled, or a random access process may be initiated. For example, the random access process may be initiated when the determination results in steps 204 and 208 are "No" and the pending SR is determined to be a high-priority SR.

[0112] It should be noted that the order of the determination steps shown in Figures 1 and 2 is merely an example. In other embodiments, the order of the determination steps may be reversed or performed in parallel. For example, the order of S204 and S206 in Figure 2 may be reversed or performed in parallel.

[0113] Hereinafter, several embodiments of the present invention for solving the above problems are described in detail.

[0114] Unless otherwise specified, in the following embodiments, the UE may trigger an SR when it triggers a Buffer Status Reporting (BSR) request, beam failure recovery, positioning measurement gap activation / deactivation request, persistent LBT failure recovery, or timing advance reporting. Furthermore, the UE may also trigger an SR due to triggering the need to send other MAC CEs.

[0115] Unless otherwise specified, in the following embodiments, the method for determining whether SR is a high-priority SR transmission includes but is not limited to: if the PUCCH resources corresponding to the SR transmission timing do not overlap with the UL-SCH resources; if the MAC entity can simultaneously perform SR transmission and SL-SCH resource transmission, etc.

[0116] Unless otherwise specified, in the following embodiments, sr-ProhibitTimer (for each SR configuration) and sr-TransMax (for each SR configuration) are parameters configured by the network. sr-ProhibitTimer: The SR prohibit timer, used for transmitting SRs on the PUCCH, controls the interval between two SR transmissions and is expressed in milliseconds. sr-TransMax: The maximum number of SR transmissions. The UE variable SR_COUNTER (for each SR configuration) in the UE is a counter used in the scheduling request process.

[0117] Optionally, as described in the following embodiments, the Cell DTX configuration may be for each serving cell.

[0118] Example 1

[0119] FIG3 is a flowchart of a method for sending a scheduling request from a user equipment to a base station according to embodiment 1 of the present invention.

[0120] Optionally, as shown in FIG3 , this embodiment includes steps 301 , 303 and 305 .

[0121] Optionally, in step 301, the UE receives Cell DTX configuration information sent by the network. Optionally, the Cell DTX configuration information may be included in a system message, an RRC-specific message (e.g., an RRC reconfiguration message), a MAC CE, or a physical layer indication (e.g., a DCI). Optionally, upon receiving Cell DTX configuration information (for all serving cells or a particular serving cell / cells), the UE deems that Cell DTX is configured for the serving cell(s), and optionally deems that the Cell DTX function is activated for the serving cell(s).

[0122] Optionally, in step 303, the UE listens for and receives Cell DTX activation / deactivation indication information, which may be included in a MAC CE or a physical layer indication (such as DCI). Optionally, the Cell DTX activation / deactivation indication information may activate / deactivate the Cell DTX of all serving cells, or may activate / deactivate the Cell DTX of a certain or certain serving cells. If the indication information received by the UE indicates the activation / deactivation of the Cell DTX of all serving cells, the UE considers that the Cell DTX of all serving cells is activated / deactivated. If the indication information received by the UE indicates the activation / deactivation of the Cell DTX of a certain or certain serving cells, the UE considers that the Cell DTX of the serving cells is activated / deactivated. Optionally, the manner in which the indication information indicates the activation of the Cell DTX, for example, the MAC CE or the physical layer indication includes an indication of activating the Cell DTX of all serving cells or a certain / some serving cells, and / or the indication of activating the Cell DTX of all serving cells or a certain / some serving cells is set to a certain specific value, such as 1; the manner in which the indication information indicates the deactivation of the Cell DTX, for example, the MAC CE or the physical layer indication includes an indication of deactivating the Cell DTX of all serving cells or a certain / some serving cells, and / or the indication of activating the Cell DTX of all serving cells or a certain / some serving cells is set to another specific value, such as 0.

[0123] Optionally, in step 305, when the SR is triggered, as long as at least one SR is pending, the MAC entity makes a judgment on each pending SR.

[0124] If SR_COUNTER < SR-TransMax, it indicates that the physical layer sends the SR on the valid PUCCH resource of (a) SR. If at least one of the following first conditions is met, SR_COUNTER is incremented by 1:

[0125] - The Cell DTX of the (corresponding serving cell) is configured;

[0126] - The Cell DTX function of the (corresponding serving cell) is activated;

[0127] - The valid PUCCH resource of the (SR) and the inactivation time of the Cell DTX of the (corresponding serving cell) do not overlap;

[0128] - The SR transmission occasion and the inactivation time of the Cell DTX of the (corresponding serving cell) do not overlap;

[0129] - There is at least one valid PUCCH resource for pending SR transmission and the Cell DTX inactivity time (of the corresponding serving cell) does not overlap.

[0130] The “effective PUCCH resources of the SR” may also be expressed as “effective PUCCH resources of the SR transmission (or the SR transmission timing)”. Alternatively, the “corresponding serving cell” may refer to the serving cell corresponding to the effective PUCCH resources, or the serving cell corresponding to the SR transmission timing.

[0131] Optionally, it is also possible to first determine if no LBT fault indication is received from the lower layer, or if an LBT fault indication is received from the lower layer but the LBT failure recovery configuration lbt-FailureRecoveryConfig is not configured, and then determine the first condition as above.

[0132] Optionally, it is possible to first determine if the MAC entity has a valid PUCCH resource configured for the pending SR, and for the SR configuration corresponding to the pending SR, if the MAC entity has an SR transmission opportunity (occasion) on the valid PUCCH resource for the SR configuration, and if the sr-ProhibitTimer is not running at the time of SR transmission, and if the PUCCH resource of the SR transmission opportunity does not overlap with the measurement gap, and determine whether the SR is a high-priority SR transmission. After determining that the SR transmission is a high-priority SR transmission, it is then determined whether SR_COUNTER <SR-TransMax。

[0133] Example 2

[0134] FIG4 is a flowchart of a method for sending a scheduling request from a user equipment to a base station according to embodiment 2 of the present invention.

[0135] According to embodiment 1, optionally, as shown in FIG4 , this embodiment includes steps 401 , 403 and 405 .

[0136] Optionally, the difference between step 401 and step 301 is that the UE also receives the configuration of the second maximum SR transmission number sent by the network, and the configuration of the second maximum SR transmission number may be included in a system message, an RRC-specific message (such as an RRC reconfiguration message), a MAC CE, or a physical layer indication (such as a DCI). The second maximum SR transmission number refers to the maximum SR transmission number of the UE when the Cell DTX function is activated, or the Cell DTX function is activated and is within the non-activation time of Cell DTX. Optionally, the value of the second maximum SR transmission number may be greater than the value of SR-TransMax. Optionally, at this time, SR-TransMax may refer to the maximum SR transmission number of the UE when the Cell DTX function is not activated, or the Cell DTX function is activated and is within the Cell DTX activation time, and may be regarded as the first maximum SR transmission number. Optionally, the second maximum SR transmission number will only appear when the Cell DTX configuration appears, that is, the second maximum SR transmission number will be configured only when Cell DTX is configured. The other operations of step 401 are the same as step 301.

[0137] Optionally, step 403 is the same as step 303.

[0138] Optionally, in step 405, when SR is triggered, as long as there is at least one SR pending, the MAC entity performs a judgment on each pending SR.

[0139] Optionally, if at least one of the following second conditions is met, and if SR_COUNTER<the second SR maximum transmission number, then the physical layer is instructed to send SR on the valid PUCCH resource of (one) SR; otherwise (or if at least one of the first conditions is met), and if SR_COUNTER<the first SR maximum transmission number (SR-TransMax), then the physical layer is instructed to send SR on the valid PUCCH resource of (one) SR.

[0140] The second condition includes at least one of the following:

[0141] -Cell DTX (of the corresponding serving cell) is configured;

[0142] -The Cell DTX function (of the corresponding serving cell) is activated;

[0143] - The effective PUCCH resources (of the SR) overlap with the inactive time of Cell DTX (of the corresponding serving cell);

[0144] - The SR transmission occasion overlaps with the inactive time of Cell DTX (of the corresponding serving cell);

[0145] - There is at least one valid PUCCH resource for pending SR transmission that overlaps with the inactive time of Cell DTX (of the corresponding serving cell);

[0146] - All valid PUCCH resources for pending SR transmission overlap with the inactive time of Cell DTX (of the corresponding serving cell).

[0147] Optionally, the "corresponding serving cell" may refer to the serving cell corresponding to the valid PUCCH resource, or the serving cell corresponding to the SR transmission occasion.

[0148] Optionally, it can be first determined if the MAC entity has configured a valid PUCCH resource for the pending SR, and for the SR configuration corresponding to the pending SR, if the MAC entity has an SR transmission occasion on the valid PUCCH resource for the SR configuration, and if the sr - ProhibitTimer is not running during the SR transmission, and if the PUCCH resource of the SR transmission occasion does not overlap with the measurement gap, and determine whether the SR is a high - priority SR transmission. After determining that the SR transmission is a high - priority SR transmission, then determine whether the first condition or the second condition is met, and determine whether SR_COUNTER < the second maximum transmission count, or whether SR_COUNTER < SR - TransMax (the first maximum transmission count).

[0149] Embodiment 3

[0150] Figure 5 is a flowchart of the method for a user equipment to send a scheduling request to a base station according to Embodiment 3 of the present invention. [[ID=:20]]

[0151] According to Embodiment 1, optionally, as shown in Figure 5, this embodiment includes steps 501, 503, and 505.

[0152] Optionally, the difference between step 501 and step 301 is that the UE also receives the configuration of the second SR prohibit timer sent by the network, and the second SR prohibit timer configuration may be included in a system message, an RRC-specific message (e.g., an RRC reconfiguration message), a MAC CE, or a physical layer indication (e.g., a DCI). The second SR prohibit timer refers to the time interval between two SR transmissions by the UE when the Cell DTX function is activated, or when the Cell DTX function is activated and is within the inactive time of Cell DTX. Optionally, at this time, sr-ProhibitTimer may refer to the SR prohibit timer of the UE when the Cell DTX function is not activated, or when the Cell DTX function is activated and is within the active time of Cell DTX, and may be regarded as the first SR prohibit timer. Optionally, the second SR prohibit timer will only appear when the Cell DTX configuration appears, that is, the second SR prohibit timer will be configured only when Cell DTX is configured. The other operations of step 501 are the same as those of step 301.

[0153] Optionally, step 503 is the same as step 303.

[0154] Optionally, in step 505, when SR is triggered, as long as there is at least one SR pending, the MAC entity performs a judgment on each pending SR.

[0155] Optionally, for the SR configuration corresponding to the pending SR, if at least one of the second conditions is met, further determine whether a second SR prohibit timer is not running during SR transmission; if the second SR prohibit timer is not running during SR transmission, further determine whether the SR is a high-priority SR transmission. For the SR configuration corresponding to the pending SR, if at least one of the first conditions is met (or at least one of the second conditions is not met), further determine whether a first SR prohibit timer (sr-ProhibitTimer) is not running during SR transmission; if the first SR prohibit timer (sr-ProhibitTimer) is not running during SR transmission, further determine whether the SR is a high-priority SR transmission.

[0156] Optionally, if SR_COUNTER < SR-TransMax (the first maximum SR transmission count) (or SR_COUNTER < the second maximum SR transmission count), it indicates that the physical layer sends an SR on the valid PUCCH resource of (a) SR. If no LBT failure indication is received from the lower layer, then: if at least one of the second conditions is satisfied, start the second SR prohibition timer; otherwise (or if at least one of the first conditions is satisfied), start the first SR prohibition timer (sr-ProhibitTimer).

[0157] Optionally, if SR_COUNTER >= SR-TransMax (the first maximum SR transmission count) (or SR_COUNTER >= the second maximum SR transmission count), if at least one of the first conditions is satisfied, the UE performs at least one of the following first actions; otherwise (or if at least one of the second conditions is satisfied), the UE initiates a random access procedure on the SpCell (or on the serving cell), and / or cancels all pending SR(s).

[0158] Among them, the first action includes at least one of the following:

[0159] - Notify RRC to release the PUCCH of all serving cells;

[0160] - Notify RRC to release the SRS of all serving cells;

[0161] - Clear any configured downlink allocation and uplink authorization;

[0162] - Clear any PUSCH resources for semi-persistent CSI reporting;

[0163] - Initiate a random access procedure on the SpCell (or on the serving cell);

[0164] - Cancel all pending SR(s).

[0165] Optionally, it can be first determined that if the MAC entity has a valid PUCCH resource configured for the pending SR, and for the SR configuration corresponding to the pending SR, if the MAC entity has an SR transmission occasion on the valid PUCCH resource configured for the SR configuration, then it is further determined whether the first condition is satisfied and / or whether the second condition is satisfied.

[0166] Embodiment 4

[0167] FIG. 6 is a flowchart of a method for a user equipment to send a scheduling request to a base station according to Embodiment 4 of the present invention.

[0168] According to embodiment 1, optionally, as shown in FIG6 , this embodiment includes steps 601 , 603 and 605 .

[0169] Optionally, step 601 is the same as step 301 , and step 603 is the same as step 303 .

[0170] Optionally, in step 605, when selecting valid PUCCH resources for SR, only PUCCH resources on the BWP that are in an activated state during SR transmission and that meet at least one of the first conditions are considered valid PUCCH resources.

[0171] Optionally, as long as there is at least one SR pending, the MAC entity performs a judgment on each pending SR. If the MAC entity does not have valid PUCCH resources for the pending SR, and if the pending SR is a high-priority SR under Cell DTX, a random access procedure is initiated on the SpCell (or on the serving cell), and / or the pending SR is canceled.

[0172] Whether the SR is a high-priority SR under Cell DTX can be obtained by receiving SR configuration information sent by the network, that is, the SR configuration information sent by the network includes an indication of whether a certain SR configuration is a high-priority SR under Cell DTX.

[0173] Example 5

[0174] FIG7 is a flowchart of a method for sending a scheduling request from a user equipment to a base station according to embodiment 5 of the present invention.

[0175] According to embodiment 1, optionally, as shown in FIG7 , this embodiment includes steps 701 , 703 and 705 .

[0176] Optionally, the difference between step 701 and step 301 is that the UE also receives a first advance time configuration sent by the network. The first advance time configuration may be included in a system message, an RRC-specific message (e.g., an RRC reconfiguration message), a MAC CE, or a physical layer indication (e.g., a DCI). The first advance time refers to how far in advance of the activation time of the (next) Cell DTX that an SR can be sent, or how far in advance of the on-duration start time of the (next) Cell DTX that an SR can be sent. Optionally, the first advance time information appears only when the Cell DTX configuration occurs, that is, the first advance time is configured only when the Cell DTX is configured. Optionally, the first advance time may be expressed in milliseconds, 1 / 32 milliseconds, radio frames, time slots, etc., and may represent a relative time compared to the on-duration start time of the (next) Cell DTX, or may represent a duration from the first advance time to the on-duration start time of the (next) Cell DTX.

[0177] Optionally, the UE further receives a first periodicity threshold value sent by the network, where the first periodicity threshold value may be included in a system message, an RRC-specific message (e.g., an RRC reconfiguration message), a MAC CE, or a physical layer indication (e.g., a DCI). The first periodicity threshold value indicates that if the Cell DTX period is less than (or less than or equal to) the threshold value, the UE may send an SR.

[0178] Optionally, the UE also receives Cell DRX configuration information sent by the network. Optionally, the Cell DRX configuration information may be included in a system message, an RRC-specific message (e.g., an RRC reconfiguration message), a MAC CE, or a physical layer indication (e.g., a DCI). When the UE receives Cell DRX configuration information (for all serving cells or a certain serving cell / cells), it considers that Cell DRX is configured for the serving cell(s) and optionally considers that the Cell DRX function is activated for the serving cell(s).

[0179] The other operations of step 701 are the same as those of step 301 .

[0180] Optionally, the difference between step 703 and step 303 is that the UE can also monitor and receive Cell DRX activation / deactivation indication information, and the indication information can be included in the MAC CE or the physical layer indication (such as DCI). Optionally, the Cell DRX activation / deactivation indication information can activate / deactivate the Cell DRX of all service cells, or activate / deactivate the Cell DRX of one or some service cells. If the indication information received by the UE indicates activation / deactivation of the Cell DRX of all service cells, the UE considers that the Cell DRX of all service cells is activated / deactivated. If the indication information received by the UE indicates activation / deactivation of the Cell DRX of one or some service cells, the UE considers that the Cell DRX of the service cell is activated / deactivated. Optionally, the indication information indicates a method for activating Cell DRX, such as a MAC CE or a physical layer indication including an indication for activating Cell DRX of all service cells or a certain / certain service cells, and / or the indication for activating Cell DRX of all service cells or a certain / certain service cells is set to a specific value, such as 1; the indication information indicates a method for deactivating Cell DRX, such as a MAC CE or a physical layer indication including an indication for deactivating Cell DRX of all service cells or a certain / certain service cells, and / or the indication for activating Cell DRX of all service cells or a certain / certain service cells is set to another specific value, such as 0. Other operations of step 703 are the same as those of step 303.

[0181] Optionally, in step 705, when SR is triggered, as long as there is at least one SR pending, the MAC entity performs a judgment on each pending SR.

[0182] Optionally, if at least one of the following third conditions is met, the physical layer is instructed to send the SR on a valid PUCCH resource of (one) SR.

[0183] The third condition includes at least one of the following:

[0184] -Cell DTX (of the corresponding serving cell) is configured;

[0185] -The Cell DTX function (of the corresponding serving cell) is activated;

[0186] - the effective PUCCH resource (of the SR) overlaps with the first advance time (of the corresponding serving cell);

[0187] - the SR transmission timing overlaps with the first advance time (of the corresponding serving cell);

[0188] - The valid PUCCH resource of (the SR) and the first advance time of (the corresponding serving cell) overlap with a duration formed by the start time of the on-duration of (the next) Cell DTX;

[0189] - The SR transmission occasion and the first advance time of (the corresponding serving cell) overlap with a duration formed by the start time of the on-duration of (the next) Cell DTX;

[0190] - The valid PUCCH resource of (the SR) is not earlier than the first advance time of (the corresponding serving cell);

[0191] - The SR transmission occasion is not earlier than the first advance time of (the corresponding serving cell);

[0192] - The period of Cell DTX is less than (or less than or equal to) the first threshold;

[0193] - The overlapping part of the activation time of Cell DTX and the activation time of Cell DRX of the valid PUCCH resource of (the SR) and (the corresponding serving cell) overlaps;

[0194] - The overlapping part of the activation time of Cell DTX and the activation time of Cell DRX of the SR transmission occasion and (the corresponding serving cell) overlaps.

[0195] Optionally, the "corresponding serving cell" may refer to the serving cell corresponding to the valid PUCCH resource or the serving cell corresponding to the SR transmission occasion.

[0196] Optionally, it may first be determined whether the second condition is satisfied. If at least one of the second conditions is satisfied, then it is determined whether the third condition is satisfied.

[0197] Optionally, if at least one of the third conditions is satisfied, it may further be determined that if SR_COUNTER < SR-TransMax (or SR_COUNTER < the second maximum SR transmission count), then it is indicated that the physical layer sends an SR on the valid PUCCH resource of (an) SR.

[0198] Optionally, it may first be determined that if the MAC entity has configured a valid PUCCH resource for the pending SR, and then it is determined whether the third condition is satisfied.

[0199] Embodiment 6

[0200] FIG. 8 is a flowchart of a method for a user equipment to send a scheduling request to a base station according to Embodiment 6 of the present invention.

[0201] According to embodiment 1, optionally, as shown in FIG8 , this embodiment includes steps 801 , 803 and 805 .

[0202] Optionally, step 801 differs from step 301 in that the UE further receives a configuration of a first pending time sent by the network. The configuration of the first pending time may be included in a system message, an RRC-specific message (e.g., an RRC reconfiguration message), a MAC CE, or a physical layer indication (e.g., a DCI). The first pending time refers to the maximum time during which the SR can be pending. The other operations of step 801 are the same as those of step 301.

[0203] Optionally, step 803 is the same as step 303.

[0204] Optionally, in step 805, when SR is triggered, as long as there is at least one SR pending, the MAC entity performs a judgment on each pending SR.

[0205] Optionally, if at least one of the second conditions is met, all pending SR(s) are canceled, or all pending SRs that are not configured as Cell DTX high priority are canceled, and the corresponding SR prohibit timer is stopped.

[0206] Or, optionally, if at least one of the second conditions is met, if the SR pending time has exceeded the first pending time, a random access procedure is initiated on the SpCell (or on the serving cell), and / or all pending SR(s) are canceled.

[0207] Alternatively, optionally, a first pending timer is started when the SR is triggered, and the first pending timer is stopped when the pending SR is canceled. The duration of the first pending timer can be set to the first pending time. When the first pending timer times out, a random access procedure is initiated on the SpCell (or on the serving cell), and / or all pending SR(s) are canceled.

[0208] Optionally, it may be determined first whether the MAC entity has valid PUCCH resources configured for the pending SR, and then whether the second condition is met.

[0209] Example 7

[0210] FIG9 is a flowchart of a method for sending a scheduling request from a user equipment to a base station according to embodiment 7 of the present invention.

[0211] As shown in FIG. 9 , this embodiment includes steps 901 and 903 .

[0212] Optionally, in step 901, the UE receives Cell DTX configuration information and / or Cell DRX configuration information sent by the network. Step 901 is the same as step 701.

[0213] Optionally, the UE receives a first indication sent by the network, where the first indication is used to indicate whether an indication of activating or deactivating the Cell DTX / Cell DRX request is allowed (or required), and the first indication may be included in a system message, an RRC-specific message (e.g., an RRC reconfiguration message), a MAC CE, or a physical layer indication (e.g., a DCI). Optionally, if the first indication indicates that the Cell DTX / Cell DRX request is allowed (or required) to be activated or deactivated (including that the first indication is included in a system message, an RRC-specific message, a MAC CE, or a physical layer indication, and / or that the first indication is set to a specific value, such as 1), the UE considers itself to be configured to allow (or require) the activation or deactivation of the Cell DTX / Cell DRX request.

[0214] Optionally, in step 903, if at least one of the following conditions is met, the UE sends a request to activate or deactivate Cell DTX / Cell DRX to the network:

[0215] - Cell DTX and / or Cell DRX (of all serving cells or certain serving cells) are configured;

[0216] -Cell DTX and / or Cell DRX (of all serving cells or a certain serving cell / cells) are activated;

[0217] -The UE considers itself to be configured to allow (or require) activation or deactivation of Cell DTX / Cell DRX request;

[0218] -The UE has an expected Cell DTX / Cell DRX state, that is, the UE expects to activate or deactivate Cell DTX / Cell DRX (of all serving cells or certain serving cells);

[0219] - Cell DTX and / or Cell DRX (of all serving cells or a certain serving cell / cells) is activated, and the UE desires to deactivate Cell DTX / Cell DRX of the serving cell (optionally, a deactivation Cell DTX / Cell DRX message is sent at this time);

[0220] -Cell DTX and / or Cell DRX (of all serving cells or certain serving cells) are deactivated, and the UE expects to activate Cell DTX / Cell DRX of the serving cell (optionally, what is sent at this time is activation Cell DTX / Cell DRX).

[0221] Optionally, the implementation of the request to activate or deactivate Cell DTX / Cell DRX (of all serving cells or a certain / certain serving cells) includes but is not limited to one of the following:

[0222] -The request includes a cell identifier of a serving cell indicating activation / deactivation of Cell DTX / Cell DRX, which is used to indicate which serving cell(s) has Cell DTX / Cell DRX to activate / deactivate;

[0223] - the request includes indication information indicating activation / deactivation of Cell DTX / Cell DRX of all serving cells;

[0224] - The request to activate or deactivate Cell DTX / Cell DRX (for all serving cells or a certain serving cell / cells) is 2 bits, one bit indicating the request to activate / deactivate Cell DTX, and the other bit indicating the request to activate / deactivate Cell DRX. For example, a bit value of 1 indicates a request to activate Cell DTX or Cell DRX, and a bit value of 0 indicates a request to deactivate Cell DTX or Cell DRX;

[0225] - The request to activate or deactivate Cell DTX / Cell DRX (all serving cells or certain serving cells) is 2 bits, one bit indicates the request to activate Cell DTX and Cell DRX, and the other bit indicates the request to deactivate Cell DTX and Cell DRX;

[0226] -The request to activate or deactivate Cell DTX / Cell DRX (all serving cells or certain serving cells) is 1 bit. For example, a bit value of 1 indicates a request to activate Cell DTX and Cell DRX, and a bit value of 0 indicates a request to deactivate Cell DTX and Cell DRX.

[0227] Optionally, the request to activate or deactivate Cell DTX / Cell DRX may be included in an RRC-specific message (eg, a UE Assistance Information UEAssistanceInformation message) or a MAC CE.

[0228] Optionally, if a request to activate or deactivate Cell DTX / Cell DRX is included in the MAC CE, activation or deactivation of Cell DTX / Cell DRX may be requested at the upper layer, and the UE triggers the activation or deactivation request of Cell DTX / Cell DRX. Optionally, if the activation or deactivation request of Cell DTX / Cell DRX is triggered, the previously triggered (not yet canceled) activation or deactivation request of Cell DTX / Cell DRX may be canceled.

[0229] Optionally, another implementation of step 903 may be that if at least one of the following conditions is met, the UE sends a request to activate or deactivate Cell DTX to the network:

[0230] -The UE is configured with Cell DTX (for all serving cells or for one or some serving cells);

[0231] -Cell DTX (of all serving cells or one or some serving cells) is activated;

[0232] -The UE considers itself to be configured to allow (or require) activation or deactivation of Cell DTX request;

[0233] -The UE has a desired Cell DTX state, that is, the UE desires to activate or deactivate Cell DTX (for all serving cells or for one or some serving cells);

[0234] - Cell DTX (of all serving cells or certain serving cells) is activated, and the UE desires to deactivate Cell DTX of the serving cell (optionally, a deactivation Cell DTX message is sent at this time);

[0235] - Cell DTX (of all serving cells or certain serving cells) is deactivated, and the UE desires to activate Cell DTX of the serving cells (optionally, what is sent at this time is activation Cell DTX).

[0236] Optionally, step 903 may also be expressed as: if at least one of the following conditions is met, the UE sends a request to activate or deactivate Cell DRX to the network:

[0237] -The UE is configured with Cell DRX (for all serving cells or one or some serving cells);

[0238] -Cell DRX (of all serving cells or one or some serving cells) is activated;

[0239] -The UE considers itself to be configured to allow (or require) activation or deactivation of Cell DRX requests;

[0240] -The UE has an expected Cell DRX state, that is, the UE expects to activate or deactivate Cell DRX (of all serving cells or certain serving cells);

[0241] - Cell DRX (of all serving cells or certain serving cells) is activated, and the UE desires to deactivate the Cell DRX of the serving cell (optionally, a deactivation Cell DRX message is sent at this time);

[0242] - Cell DRX (of all serving cells or certain serving cells) is deactivated, and the UE expects to activate the Cell DRX of the serving cell (optionally, what is sent at this time is activation Cell DRX).

[0243] Figure 10 is a simplified block diagram of the user equipment (UE) according to the present invention. As shown in Figure 10 , the user equipment (UE) 1000 includes a processor 1001 and a memory 1002. Processor 1001 may include, for example, a microprocessor, a microcontroller, an embedded processor, etc. Memory 1002 may include, for example, a volatile memory (such as a random access memory (RAM), a hard disk drive (HDD), a non-volatile memory (such as a flash memory), or other memory. Memory 1002 stores program instructions. When executed by processor 1001, these instructions may execute the above-described method performed by the user equipment, as described in detail in the present invention.

[0244] The program running on the device according to the present invention can be a program that controls the central processing unit (CPU) to enable the computer to implement the functions of the embodiments of the present invention. The program or the information processed by the program can be temporarily stored in a volatile memory (such as a random access memory RAM), a hard disk drive (HDD), a non-volatile memory (such as a flash memory), or other memory systems.

[0245] The program for realizing each embodiment of the present invention function can be recorded on a computer-readable recording medium. Can realize corresponding function by making a computer system read the program recorded on the recording medium and executing these programs. So-called "computer system" herein can be the computer system embedded in the device, can include operating system or hardware (such as peripheral device). "Computer-readable recording medium" can be a semiconductor recording medium, an optical recording medium, a magnetic recording medium, a short-term dynamic storage program recording medium or any other recording medium that is computer-readable.

[0246] The various features or functional modules of the devices used in the above embodiments can be implemented or executed by circuits (e.g., single-chip or multi-chip integrated circuits). The circuits designed to perform the functions described in this specification may include a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic, discrete hardware components, or any combination of the above devices. The general-purpose processor may be a microprocessor, or any existing processor, controller, microcontroller, or state machine. The above circuits may be digital circuits or analog circuits. In the event that new integrated circuit technologies have emerged to replace existing integrated circuits due to advances in semiconductor technology, one or more embodiments of the present invention may also be implemented using these new integrated circuit technologies.

[0247] Furthermore, the present invention is not limited to the above-described embodiments. Although various examples of the embodiments have been described, the present invention is not limited thereto. Fixed or non-mobile electronic devices installed indoors or outdoors can be used as terminal devices or communication devices, such as AV equipment, kitchen equipment, cleaning equipment, air conditioners, office equipment, vending machines, and other household appliances.

[0248] As described above, embodiments of the present invention have been described in detail with reference to the accompanying drawings. However, the specific structure is not limited to the above-described embodiments, and the present invention also includes any design changes that do not deviate from the main purpose of the present invention. In addition, various modifications can be made to the present invention within the scope of the claims, and embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the technical scope of the present invention. In addition, components with the same effect described in the above embodiments can be replaced with each other.

Claims

1. A method for sending a scheduling request by a user equipment to a base station, comprising: For a pending scheduling request in a pending state, that is, a pending SR, if the value of the SR counter is less than the maximum number of SRs to be sent, the physical layer is instructed to send the pending SR on a valid PUCCH resource. The SR counter indicates the number of pending SRs sent, and is reset to an initial value when a certain SR is triggered if there are no other SRs in a pending state. as well as When the serving cell corresponding to the valid PUCCH resource is configured with discontinuous transmission (DTX) and the DTX function is activated and the first condition is met, the value of the SR counter is increased by a corresponding value, The first condition includes at least one of the following: The valid PUCCH resource used to send the pending SR does not overlap with the DTX inactive time of the serving cell; The transmission timing of the pending SR does not overlap with the DTX inactivation time of the serving cell.

2. The method according to claim 1, wherein: The valid PUCCH resource is a PUCCH resource that is on the BWP that is in an activated state when the pending SR is transmitted and that satisfies the first condition.

3. The method according to claim 1, further comprising: If there is no valid PUCCH resource for transmitting the pending SR, and the pending SR is determined to be a high priority SR under DTX, a random access procedure is initiated in the special serving cell.

4. A method for sending a scheduling request by a user equipment to a base station, comprising: For a pending scheduling request (i.e., a pending SR) in a pending sending state, if there is a valid PUCCH resource for sending the pending SR, and if the serving cell corresponding to the valid PUCCH resource is configured with discontinuous transmission (i.e., DTX), determining whether a sendable condition is currently met, wherein the sendable condition indicates that the pending SR can be sent to the base station; as well as When the transmission condition is met, the PUCCH resource is transmitted on the valid PUCCH resource. Pending SR.

5. The method according to claim 4, wherein: The transmittable condition includes a first transmittable condition when the DTX function is activated and within the DTX activation time, and a second transmittable condition when the DTX function is activated and within the DTX non-activation time, Sending the pending SR on the valid PUCCH resource includes: When any one of the first transmittable condition and the second transmittable condition is satisfied, the pending SR is transmitted on the valid PUCCH resource.

6. The method according to claim 5, wherein: The user equipment is configured with a first maximum number of SR transmissions when the DTX function is activated and within the DTX activation time, and a second maximum number of SR transmissions when the DTX function is activated and within the DTX inactivation time, The first sendable condition includes: The value of the SR counter is less than the maximum number of times the first SR is sent, the SR counter represents the number of pending SRs sent, and is reset to an initial value when a certain SR is triggered and there are no other pending SRs; and The first condition includes that the DTX function is activated and at least one of the following: the valid PUCCH resource used to transmit the pending SR does not overlap with the DTX inactivation time of the serving cell; the transmission timing of the pending SR does not overlap with the DTX inactivation time of the serving cell, The second sendable condition includes: The value of the SR counter is less than the second SR maximum number of transmission times; and The second condition includes that the DTX function is activated and at least one of the following: the valid PUCCH resources used to transmit the pending SR overlap with the non-activation time of DTX of the serving cell; the transmission time of the pending SR overlaps with the non-activation time of DTX of the serving cell; all valid PUCCH resources used to transmit the SR in the pending state overlap with the non-activation time of DTX of the serving cell.

7. The method according to claim 5, wherein: The user equipment is configured with a first SR prohibit timer when the DTX function is activated and within the DTX activation time, and a second SR prohibit timer when the DTX function is activated and within the DTX inactivation time, the SR prohibit timer specifies a minimum time interval between two SRs sent by the user equipment within a corresponding period, The first sendable condition includes: When transmitting the pending SR, the first SR prohibit timer is not running; and The first condition includes that the DTX function is activated and at least one of the following: the valid PUCCH resource used to transmit the pending SR does not overlap with the DTX inactivation time of the serving cell; the transmission timing of the pending SR does not overlap with the DTX inactivation time of the serving cell, The second sendable condition includes: When transmitting the pending SR, the second SR prohibit timer is not running; and a second condition, wherein the second condition includes that the DTX function is activated and at least one of the following: the valid PUCCH resource used to transmit the pending SR overlaps with the DTX inactivation time of the serving cell; the transmission time of the pending SR overlaps with the DTX inactivation time of the serving cell, The first SR prohibit timer is started when the first condition is met last time, and the second SR prohibit timer is started when the second condition is met last time.

8. The method according to claim 4, wherein: The transmittable condition includes the DTX function being activated and at least one of the following: The effective PUCCH resource used to transmit the pending SR overlaps with the first advance time of the serving cell; The transmission timing of the pending SR overlaps with the first advance time of the serving cell; The valid PUCCH resource used to transmit the pending SR overlaps with a duration formed by the first advance time and the start time of the continuous transmission time of the next DTX cycle; The effective PUCCH resource for transmitting the pending SR is no earlier than the first advance time of the serving cell; The repetition period of DTX inactive time and active time is less than the period threshold value; The serving cell is also configured with discontinuous reception (DRX) and the DRX function is activated, and the effective PUCCH resources for transmitting the pending SR overlap with the activation time of the DRX and the activation time of the DTX; The serving cell is also configured with DRX and the DRX function is activated, and the transmission time of the pending SR overlaps with the activation time of DRX and the activation time of DTX, The first advance time is an advance time relative to the activation time of the next DTX or the start time point of the continuous transmission period of the activation time of the next DTX.

9. The method according to claim 4, wherein: The pending SR is canceled when at least one of the following conditions is met: the second condition is met; the second condition is met, and the pending SR is not configured as a high-priority SR; the second condition is met, and the pending time of the pending SR exceeds the first pending time that specifies the maximum time that the triggered SR can be pending. or, When the second condition is met and the pending time of the pending SR exceeds the first pending time, a random access procedure is initiated on the special service cell.

10. A user equipment, comprising: processor; as well as Memory, which stores instructions, Wherein, when the instructions are executed by the processor, the method according to any one of claims 1 to 9 is performed.

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