CN117897932A

CN117897932A - Downlink receiving method, device and readable storage medium

Info

Publication number: CN117897932A
Application number: CN202280003157.2A
Authority: CN
Inventors: 付婷
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2022-08-15
Filing date: 2022-08-15
Publication date: 2024-04-16
Also published as: WO2024036434A1

Abstract

The disclosure provides a downlink receiving method, a device and a readable storage medium, wherein the method comprises the following steps: and in the working period of discontinuous reception (C-DRX) in the connected state, responding to successful reception of one or more first channels by the user equipment, and ending the working period without any preset timer associated with the first channels in the running state. In the embodiment of the disclosure, the user equipment combines the service data receiving condition in the working period, and finishes running when the first channel is successfully received and the associated preset timer is finished, which indicates that no service data to be transmitted exists, and the user equipment can terminate the working period in advance before the working period is finished, so that unnecessary channel monitoring is avoided, and the energy consumption of the user equipment is saved.

Description

Downlink receiving method, device and readable storage medium

Technical Field

The disclosure relates to the technical field of wireless communication, and in particular relates to a downlink receiving method, a device and a readable storage medium.

Background

In a fifth Generation (5 th-Generation, 5G) wireless communication system, support for eXtended Reality (XR) service types is required. XR includes augmented Reality (AugmentedReality, AR), virtual Reality (VR), cloud gaming (Cloud gaming), and the like. XR services have the characteristic of a fixed frame rate, i.e. the service data of the XR service arrives at the UE with a fixed period, but there is an additional delay Jitter (Jitter) on the basis of the fixed period, so that the actual service data arrives at the User Equipment (UE) with advance or delay.

In order to reduce the power consumption of the UE during the communication process, a key feature of discontinuous reception (Connected Discontinuous Reception, C-DRX) in a connected state is introduced in the 3GPP New Radio (NR). In the C-DRX mode, the UE does not need to monitor the physical downlink control channel (Physical Downlink Control Channel, PDCCH) continuously, but starts PDCCH monitoring when reaching the start time of the active period (on duration), and enters the sleep period (off duration) if the active period ends or after the monitoring ends, and does not need to monitor the PDCCH in the sleep period, so as to achieve energy saving.

In the C-DRX mode, whether or not traffic data transmission is performed, the UE needs to keep an active (active) state throughout the entire working period, and the problem of energy consumption waste that may occur in this scenario needs to be solved.

Disclosure of Invention

The disclosure provides a downlink receiving method, a device and a readable storage medium.

In a first aspect, the present disclosure provides a downlink receiving method, performed by a user equipment, the method including:

and in the working period of discontinuous reception (C-DRX) in the connected state, responding to successful reception of one or more first channels by the user equipment, and ending the working period without any preset timer associated with the first channels in the running state.

In the method disclosed by the disclosure, the user equipment combines the service data receiving condition in the working period, and the operation is finished when the first channel is successfully received and the associated preset timer is finished, so that the user equipment can stop the working period in advance before the working period is finished, thereby avoiding unnecessary channel monitoring and saving the energy consumption of the user equipment.

In some possible embodiments, the user equipment is in an active state during an operation period of the preset timer.

In some possible embodiments, the first channel is a physical downlink control channel PDCCH, or the first channel is a semi-persistent scheduling physical downlink shared channel SPS PDSCH.

In some possible embodiments, the method further comprises:

and responding to the first channel as the PDCCH, and starting the preset timer after receiving downlink control information DCI transmitted by the PDCCH.

In some possible embodiments, the preset timer is at least one of the following timers of the C-DRX configuration:

an inactivity timer;

a retransmission timer corresponding to the downlink hybrid automatic retransmission HARQ process scheduled by the PDCCH;

And a retransmission timer corresponding to the uplink hybrid automatic retransmission HARQ process scheduled by the PDCCH.

In some possible implementations, in response to the first channel being an SPS PDSCH, the preset timer is a timer associated with the SPS PDSCH; and in the working period, starting the preset timer after the user equipment successfully receives the SPS PDSCH.

In some possible embodiments, the method further comprises:

responding to the SPS PDSCH received by the user equipment and successfully demodulated in a first time length, and starting the preset timer at a second time after the first time length is separated from the first time; the first time is the time when the user equipment receives the SPS PDSCH.

In some possible embodiments, the first duration is defined by a protocol.

In some possible implementations, the C-DRX is configured with a first flag indicating that an active period of the C-DRX can be terminated prematurely.

In some possible implementations, the SPS PDSCH is configured with a second identification indicating that the configuration of C-DRX applies to transmissions of the SPS PDSCH.

In a second aspect, the present disclosure provides a downlink receiving apparatus, which is configured to perform the steps performed by the user equipment in the first aspect or any of the possible designs of the first aspect. The user equipment may implement the functions in the methods described above in the form of hardware structures, software modules, or both.

When the apparatus of the second aspect is implemented by a software module, the apparatus may comprise a processing module, wherein the processing module may be adapted to perform processing operations on the communication apparatus, such as generating information/messages to be transmitted or processing received signals to obtain information/messages.

In executing the steps in the first aspect, the processing module responds to successful reception of one or more first channels by the user equipment in the working period of discontinuous reception (C-DRX) in the connected state, and no preset timer associated with any one of the first channels is in an operation state, so as to terminate the working period.

In a third aspect, the present disclosure provides a communication device comprising a processor and a memory; the memory is used for storing a computer program; the processor is configured to execute the computer program to implement the first aspect or any one of the possible designs of the first aspect.

In a fourth aspect, the present disclosure provides a computer readable storage medium having stored therein instructions (or computer programs, programs) which when invoked for execution on a computer, cause the computer to perform any one of the possible designs of the first aspect or the first aspect.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are included to provide a further understanding of embodiments of the disclosure and are incorporated in and constitute a part of this application, illustrate embodiments of the disclosure and together with the description serve to explain the embodiments of the disclosure and not to limit the embodiments of the disclosure unduly. In the drawings:

the accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the embodiments of the disclosure.

Fig. 1 is a schematic diagram of a wireless communication system architecture according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram illustrating one type of XR traffic transmission, according to an example embodiment;

fig. 3 is a flow chart illustrating a method of downlink reception according to an example embodiment;

Fig. 4 is a schematic diagram of a C-DRX configuration, shown according to an example embodiment;

fig. 5 is a flow chart illustrating a method of downstream reception in accordance with an exemplary embodiment;

fig. 6 is a flow chart illustrating another method of downlink reception in accordance with an exemplary embodiment;

FIG. 7 is a flow chart illustrating another method of downstream reception in accordance with an exemplary embodiment;

fig. 8 is a schematic diagram illustrating a downlink reception scenario according to an example embodiment;

fig. 9 is a schematic diagram of a downlink reception scenario illustrated according to another exemplary embodiment;

fig. 10 is a block diagram of a downlink receiving apparatus according to an exemplary embodiment;

FIG. 11 is a block diagram of a user device shown in accordance with an exemplary embodiment;

fig. 12 is a block diagram of a downlink receiving apparatus according to an exemplary embodiment;

fig. 13 is a block diagram of a communication device, according to an example embodiment.

Detailed Description

Embodiments of the present disclosure will now be further described with reference to the drawings and detailed description.

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the embodiments of the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.

The terminology used in the embodiments of the disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the disclosure. As used in this disclosure of embodiments and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used in embodiments of the present disclosure to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, the first information may also be referred to as second information, and similarly, the second information may also be referred to as first information, without departing from the scope of embodiments of the present disclosure. The words "if" and "if" as used herein may be interpreted as "at … …" or "at … …" or "in response to a determination", depending on the context.

Embodiments of the present disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the like or similar elements throughout. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present disclosure and are not to be construed as limiting the present disclosure.

As shown in fig. 1, a downlink receiving method provided in an embodiment of the present disclosure may be applied to a wireless communication system 100, which may include a user equipment 101 and a network equipment 102. Wherein the user equipment 101 is configured to support carrier aggregation and is connectable to a plurality of carrier units of the network device 102, including one primary carrier unit and one or more secondary carrier units.

It should be appreciated that the above wireless communication system 100 is applicable to both low frequency and high frequency scenarios. Application scenarios of the wireless communication system 100 include, but are not limited to, long term evolution (long term evolution, LTE) systems, LTE frequency division duplex (frequency division duplex, FDD) systems, LTE time division duplex (time division duplex, TDD) systems, worldwide interoperability for microwave access (worldwide interoperability for micro wave access, wiMAX) communication systems, cloud radio access network (cloud radio access network, CRAN) systems, future fifth Generation (5 th-Generation, 5G) systems, new Radio (NR) communication systems, or future evolved public land mobile network (public land mobile network, PLMN) systems, and the like.

The user equipment 101 shown above may be a terminal (terminal), an access terminal, a terminal unit, a terminal station, a Mobile Station (MS), a remote station, a remote terminal, a mobile terminal (mobile terminal), a wireless communication device, a terminal agent, a terminal device, or the like. The user device 101 may be provided with wireless transceiver functionality that is capable of communicating (e.g., wirelessly communicating) with one or more network devices of one or more communication systems and receiving network services provided by the network devices, including, but not limited to, the illustrated network device 102.

The user equipment 101 may be, among other things, a cellular phone, a cordless phone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved PLMN network, etc.

Network device 102 may be an access network device (or access network site). The access network device refers to a device that provides a network access function, such as a radio access network (radio access network, RAN) base station, etc. The network device 102 may specifically include a Base Station (BS), or include a base station, a radio resource management device for controlling the base station, and the like. The network device 102 may also include relay stations (relay devices), access points, base stations in future 5G networks, base stations in future evolved PLMN networks, or NR base stations, etc. Network device 102 may be a wearable device or an in-vehicle device. The network device 102 may also be a communication chip with a communication module.

For example, network device 102 includes, but is not limited to: a next generation base station (gnodeB, gNB) in 5G, an evolved node B (eNB) in LTE system, a radio network controller (radio network controller, RNC), a Node B (NB) in WCDMA system, a radio controller under CRAN system, a base station controller (basestation controller, BSC), a base transceiver station (base transceiver station, BTS) in GSM system or CDMA system, a home base station (e.g., home evolved nodeB, or home node B, HNB), a baseband unit (BBU), a transmission point (transmitting and receiving point, TRP), a transmission point (transmitting point, TP), a mobile switching center, or the like.

In 5G air interface transmission, the number of bits (bits) included in a data frame may be large, and thus may be split into multiple Transport Blocks (TBs) for transmission in multiple physical resources, such as multiple time slots. Fig. 2 is a schematic diagram illustrating one XR traffic transmission, according to an embodiment of the present disclosure. As shown in fig. 2, during data transmission of the XR service, a Frame rate of a transmitted data Frame is F Frames Per Second (FPS), for example, 60FPS. In each period (1/F) of transmitting a data frame, for example, 16.67ms, for example, from transmitting a data packet K corresponding to a video data frame K to transmitting a data packet (k+1) corresponding to a video data frame (k+1), the delay jitter (jitter) is generally in the range of [4, -4] ms. Wherein the delay jitter and the packet size of the traffic data follow probability distributions (probability distribution), respectively.

When XR service data is transmitted in the C-DRX mechanism, the configuration of the working period needs to consider delay jitter. For example, when the delay jitter is in the range of [4, -4] ms, the working period needs to be set to 8ms to ensure that the UE is in an immediately accepted state whenever a data frame arrives, so as to reduce the data transmission delay. In this procedure, if a certain XR data frame arrives in advance, e.g. in the 1 st ms of the working period and the transmission is completed in the next 3ms, then from the 4 th ms of the working period, the UE has no data to be received. But still in the working period at this time, the UE still needs to keep on active to monitor the PDCCH until the working period ends. Thus, a problem of waste of energy is generated in this scenario.

The embodiment of the disclosure provides a downlink receiving method. Referring to fig. 3, fig. 3 illustrates a downlink receiving method according to an exemplary embodiment, and as shown in fig. 3, the method includes steps S301 to S303, specifically:

in step S301, the network device 102 sends configuration information to the user equipment 101, where the configuration information is used to indicate the C-DRX configuration.

In step S302, the user equipment 101 listens to the first channel according to the configuration information.

In step S303, during the operation period of discontinuous reception C-DRX in the connected state, in response to the user equipment 101 successfully receiving one or more first channels, and no preset timer associated with any one of the first channels is in an operation state, the operation period is terminated.

In some possible implementations, an on period (on duration) and an off period (off duration) of the C-DRX are indicated in the configuration information. During the working period, the user equipment 101 starts a first channel monitoring; the user equipment 101 may enter a sleep state during the sleep period to enable power saving.

In some possible implementations, the configuration information may indicate periodic C-DRX.

In an example, as shown in fig. 4, in C-DRX configured with a Long period (Long Cycle), the period of the operation period is longer. When a Short Cycle is nested within a long Cycle, the Cycle of the on period also includes a plurality of Short cycles that occur within the long Cycle. The user equipment 101 listens according to the working period in the configuration.

In some possible implementations, the first channel is a PDCCH, or the first channel is a Semi-persistent scheduling physical downlink shared channel (Semi-Persistent Scheduling Physical Downlink Shared Channel, SPS PDSCH).

In an example, SPS PDSCH is allocated periodic PDSCH transmission resources by higher layers and activated and deactivated using downlink control information (Downlink Control Information, DCI). Except for activation and deactivation, no DCI scheduling is required for transmission of each PDSCH. Therefore, the SPS PDSCH scheduling mode can greatly reduce the resources occupied by DCI and reduce the resource overhead. In this example, XR traffic data is transmitted using SPS PDSCH.

In some possible implementations, successful reception of the first channel by the user equipment 101 means that: and receiving the message transmitted by the first channel and demodulating the message successfully.

In an example, the ue 101 successfully receives the PDCCH, for example, the ue 101 receives the DCI transmitted by the PDCCH and successfully demodulates the DCI.

In an example, the user equipment 101 successfully receives the SPS PDSCH, e.g., the user equipment 101 receives data of the SPS PDSCH transmission and successfully demodulates.

In some possible embodiments, when the user equipment 101 has successfully received the first channels and no preset timer associated with any one of the first channels is in operation, it indicates that the user equipment 101 has no data to be received in the current operation period. At this time, if the operation period has not ended, the user equipment 101 may end the operation period in advance.

In the embodiment of the present disclosure, the user equipment 101 combines the service data receiving situation in the working period, and ends running when the first channel has been successfully received and the associated preset timer is all completed, which indicates that there is no service data to be transmitted, and the user equipment 101 may terminate the working period in advance before the working period ends, so as to avoid unnecessary channel monitoring, and save energy consumption of the user equipment 101.

The embodiments of the present disclosure provide a downlink reception method, which is performed by the user equipment 101. Referring to fig. 5, fig. 5 illustrates a downlink receiving method according to an exemplary embodiment, and as shown in fig. 5, the method includes step S501, specifically:

in step S501, during an operation period of discontinuous reception C-DRX in the connected state, in response to the user equipment 101 successfully receiving one or more first channels, and no preset timer associated with any one of the first channels is in an operation state, the operation period is terminated.

In some possible embodiments, in the C-DRX configuration, the timer corresponding to the active period is DRX-onduration timer. The timer will start each time an operating period is reached and when the timer ends running, this indicates the end of the operating period.

In some possible embodiments, no one of the first channel associated preset timers is in operation, i.e. all the first channel associated preset timers successfully received by the user equipment 101 end to run.

In an example, during the working period, the ue 101 successfully receives 3 first channels, and when all preset timers associated with the 3 first channels end to run, the ue 101 may end the working period in advance.

In some possible embodiments, the preset timer is, for example, a type of timer during which the user equipment 101 needs to be in an active state during its running period.

In some possible embodiments, in the scenario of transmitting XR service data, each data frame of the XR service data may be split into multiple packets, and each data frame may be transmitted in a short time. Thus, when the user equipment 101 has successfully received the first channel and the associated timer has ended running, this indicates that the data frame has been received.

It will be appreciated that the scenario of transmitting XR service data in this embodiment is merely exemplary and not limiting of the type of service data. In other implementations, the methods of the embodiments of the present disclosure are also applicable to scenarios in which traffic data of other traffic types is transmitted.

The embodiments of the present disclosure provide a downlink reception method, which is performed by the user equipment 101. The method comprises a step S501, namely:

Wherein the user equipment 101 is in an active state during an operation period of a preset timer.

In some possible implementations, the first channel is a PDCCH, or, SPS PDSCH.

In some possible implementations, the preset timer is run, and the user equipment 101 needs to be in an active state to perform listening of the relevant channel.

In some possible embodiments, the preset timer is a timer associated with the newly transmitted data.

In some possible embodiments, the preset timer is a timer associated with retransmitting data.

In an example, the first channel may carry an identification corresponding to the data when transmitting the data. For example, when carrying a new data identifier (New Data Indicator, NDI), this data is indicated as new data.

In the embodiment of the present disclosure, when the first channel is received, the ue 101 determines whether the data in the working period is received in conjunction with whether the preset timer is in an operating state.

The embodiments of the present disclosure provide a downlink reception method, which is performed by the user equipment 101. Referring to fig. 6, fig. 6 illustrates a downlink receiving method according to an exemplary embodiment, and as shown in fig. 6, the method includes steps S601 to S602, specifically:

in step S601, in response to the first channel being the PDCCH, after receiving downlink control information DCI transmitted by the PDCCH, a preset timer is started.

In step S602, during an operation period of discontinuous reception C-DRX in the connected state, in response to the user equipment 101 successfully receiving one or more first channels, and no preset timer associated with any one of the first channels is in an operation state, the operation period is terminated.

In some possible embodiments, the DCI received by the user equipment 101 may be DCI corresponding to the newly transmitted data.

In some possible embodiments, the DCI received by the user equipment 101 may be DCI corresponding to the retransmission data.

In some possible embodiments, the ue 101 starts a preset timer when receiving DCI, and when the preset timer ends, it indicates that the data transmission is completed, so that the ue 101 may end the working period in advance to save energy consumption.

The embodiments of the present disclosure provide a downlink reception method, which is performed by the user equipment 101. The method comprises steps S601-S602, wherein the preset timer is at least one of the following timers configured by C-DRX:

an inactivity timer;

a retransmission timer corresponding to a downlink hybrid automatic retransmission HARQ process scheduled by the PDCCH;

retransmission timers corresponding to the uplink hybrid automatic repeat request (HARQ) processes scheduled by the Physical Downlink Control Channel (PDCCH).

In some possible embodiments, the inactivity timer (drx-inactivity timer) is started each time the user equipment 101 receives DCI scheduling uplink or downlink new transmission data, and is used to indicate the duration after receiving the new transmission data.

In some possible embodiments, a retransmission timer (drx-retransmission timer dl) corresponding to a PDCCH scheduled downlink hybrid automatic repeat request (HARQ) process is applied to a downlink hybrid automatic repeat request (Hybrid Automatic Repeat Request, HARQ) process other than broadcast, for indicating a maximum duration from receiving data of the process to receiving downlink retransmission of the process.

In an example, different HARQ processes have corresponding identities (HARQ IDs). Each DL HARQ process has a corresponding drx-HARQ-RTT-TimerDL timer that does not end and its corresponding HARQ process is not used for retransmission.

In this example, if the drx-HARQ-RTT-TimerDL timer corresponding to the DL HARQ process ends and the ue 101 feeds back NACK, it indicates that the network device 102 needs to retransmit data. At this time, a retransmission timer drx-retransmission timer DL will be started, and the ue 101 may monitor the retransmission data DCI corresponding to the DL HARQ process and the new transmission data DCI of other DL HARQ processes in the drx-retransmission timer DL running period.

In some possible embodiments, a retransmission timer (drx-retransmission timer ul) corresponding to an uplink hybrid automatic repeat request (HARQ) process scheduled by a PDCCH is applied to the uplink HARQ process, for indicating a maximum duration from receiving data of the process to receiving uplink data for uplink retransmission of the process.

In an example, different HARQ processes have corresponding identities (HARQ IDs). Each UL HARQ process has a corresponding drx-HARQ-RTT-timer UL timer that does not end and its corresponding HARQ process is not used for retransmission.

In this example, if the drx-HARQ-RTT-timer ul timer is over, the ue 101 starts drx-retransmission timer ul to monitor PDCCH during the running period of drx-retransmission timer ul to obtain possible uplink data retransmission schedule.

For example, the ue 101 listens to the PDCCH in the running period of drx-retransmission timer ul, and receives the DCI of the data to be retransmitted, and the ue 101 retransmits the data; if DCI of the newly transmitted data is received, the ue 101 does not need to retransmit the data.

In the embodiment of the present disclosure, in a scenario where the first channel is PDCCH, in a timer involved in C-DRX configuration, when a DRX-inactivity timer is in an operation period, the ue 101 needs to be in an active state to monitor newly transmitted data; when drx-retransmission timer dl is in the running period, the ue 101 needs to be in an active state to monitor the new transmission or retransmission data; when drx-retransmission timer ul is running, the ue 101 needs to be in active state to listen to new or retransmitted data. Thus, when the ue 101 successfully receives the first channel and all of the three preset timers are finished running, it indicates that the ue 101 is not required to be in an active state. The user equipment 101 may end the working period in advance and enter the sleep state to save energy consumption.

Wherein, in response to the first channel being SPS PDSCH, the preset timer is a timer associated with SPS PDSCH; and in the working period, starting a preset timer after the user equipment successfully receives the SPS PDSCH.

In some possible implementations, the preset timer may be new transmission data for SPS PDSCH transmission.

In some possible implementations, the user equipment 101 starts the preset timer after successfully receiving the SPS PDSCH, i.e., receiving the SPS PDSCH and successfully demodulating. During the preset timer running period, the user equipment 101 needs to be in an active state.

In the embodiment of the present disclosure, in a scenario where the first channel is the SPS PDSCH, the user equipment 101 may end the operation period in advance when the SPS PDSCH is successfully received and the preset timer has ended running.

The embodiments of the present disclosure provide a downlink reception method, which is performed by the user equipment 101. Referring to fig. 7, fig. 7 illustrates a downlink receiving method according to an exemplary embodiment, and as shown in fig. 7, the method includes steps S701 to S702, specifically:

step S701, in response to the user equipment 101 receiving the SPS PDSCH and successfully demodulating the SPS PDSCH within the first time period, starting a preset timer at a second time point after the first time period is separated from the first time point; the first time is a time when the user equipment receives the SPS PDSCH.

In step S702, during an operation period of discontinuous reception C-DRX in the connected state, in response to the user equipment 101 successfully receiving one or more first channels, and no preset timer associated with any one of the first channels is in an operation state, the operation period is terminated.

In some possible implementations, the first time is the time when the user equipment 101 receives the SPS PDSCH, i.e., the end time of the SPS PDSCH transmission.

In some possible embodiments, the first time period (T1) is used to characterize the maximum time period for the user equipment 101 to demodulate the received SPS PDSCH, i.e., the first time period during which the user equipment 101 needs to complete the demodulation of the SPS PDSCH.

In some possible implementations, the first duration is protocol defined.

In an example, the corresponding first duration value may be defined in a protocol according to the capabilities of different user devices 101.

In some possible embodiments, the user equipment 101 needs to remain active during the running period of the preset timer, and the user equipment 101 may end the working period in advance when the preset timer ends running.

In an example, as shown in connection with fig. 9, the running time of the preset timer is T2, and at the end time of T2, the user equipment 101 may end the operation period.

In some possible implementations, if the user equipment 101 does not demodulate the SPS PDSCH correctly, the preset timer is not started. At this time, the ue 101 does not end the working period in advance according to the end running time of the preset timer. It will be appreciated that if the user equipment 101 does not demodulate the SPS PDSCH correctly, there may be no data sent by the base station for the user equipment 101 on the SPS PDSCH resources.

In the embodiment of the present disclosure, the starting time and conditions of the preset timer in the scenario where the first channel is the SPS PDSCH are described, and when the preset timer ends running, the user equipment 101 may end the working period in advance, so as to save energy consumption.

The embodiments of the present disclosure provide a downlink reception method, which is performed by the user equipment 101. The method may comprise step S501, or steps S601 to S602, or steps S701 to S702, wherein:

the C-DRX is configured with a first indication that an active period of the C-DRX can be terminated prematurely.

In the embodiment of the present disclosure, for the C-DRX configured with the first identifier, the user equipment 101 may terminate the operation period in advance by performing the method of the above embodiment. Otherwise, the user equipment 101 may not terminate the operation period in advance.

the SPS PDSCH is configured with a second identity to indicate that the configuration of C-DRX applies to transmissions of the SPS PDSCH.

In the disclosed embodiments, the reception of SPS PDSCH is affected by the C-DRX configuration, e.g., user equipment 101 receives SPS PDSCH only during active periods and does not receive SPS PDSCH during inactive periods. It is worth noting that the C-DRX configuration in the current related protocol affects the monitoring of PDCCH, and does not affect SPS PDSCH.

To facilitate an understanding of the disclosed embodiments, a few examples are set forth below.

Example one:

in connection with the configuration of the network device 102, the operating period of C-DRX is 20ms. In this example, the first channel is PDCCH.

As shown in fig. 8, at a start time t0 of the operation period, the user equipment 101 is in an active state, and listens to the PDCCH from t 0. The DCI is received at t1, and the preset timer drx-InactivityTimer, drx-retransmission timerdl or drx-retransmission timersl is not running or ends running at t2, and the ue 101 may end the working period in advance at t 2.

Wherein, the time period between t1 and t2 is related to the running time period of the running preset timer.

Example two:

in connection with the configuration of the network device 102, the operating period of C-DRX is 20ms. In this example, the first channel is SPS PDSCH.

As shown in fig. 9, at the start time t0 of the operation period, the user equipment 101 is in an active state, and monitors the SPS PDSCH from t 0. If the user equipment receives the SPS PDSCH at the first time, which is 8ms, 9ms, and 10ms, the duration that the user equipment 101 needs to remain in the active state corresponding to the first time when the SPS PDSCH is last received may be determined.

For example, the ue 101 receives the SPS PDSCH in the 10 th ms, completes demodulation of the SPS PDSCH in the first time period T1, and the time T3 when demodulation is successful is the second time period. Starting a preset timer from T3, wherein the running duration of the preset timer is T2, and the ending time is T4. The user equipment 101 may end the operation period in advance at t4.

Based on the same concept as the above method embodiment, the present disclosure further provides a downlink receiving apparatus, which may have the function of the user equipment 101 in the above method embodiment and may be used to perform the steps performed by the user equipment 101 provided in the above method embodiment. The functions may be implemented by hardware, or may be implemented by software or hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the functions described above.

In a possible implementation, the communication apparatus 1000 as shown in fig. 10 may be used as the user equipment 101 according to the above-described method embodiment, and perform the steps performed by the user equipment 101 in the above-described method embodiment. As shown in fig. 10, the communication device 1000 may include processing modules 1001 coupled to each other, wherein the processing modules 1001 may be used for the communication device to perform processing operations, such as generating information/messages to be transmitted or processing received signals to obtain information/messages.

In performing the steps performed by the user equipment 101, the processing module 1001 is configured to terminate the active period in response to the user equipment successfully receiving one or more first channels during the active period of discontinuous reception, C-DRX, in the connected state, without a preset timer associated with any one of the first channels being in an active state.

In some possible embodiments, the processing module 1001 is further configured to, in response to the first channel being a PDCCH, start a preset timer after receiving downlink control information DCI transmitted by the PDCCH.

In some possible embodiments, the preset timer is at least one of the following C-DRX configured timers:

an inactivity timer;

In some possible implementations, in response to the first channel being SPS PDSCH, the preset timer is a timer associated with SPS PDSCH; and in the working period, starting a preset timer after the user equipment successfully receives the SPS PDSCH.

In some possible implementations, the processing module 1001 is further configured to, in response to the user equipment receiving the SPS PDSCH and demodulating successfully within the first time period, start a preset timer at a second time instant after the first time instant is separated from the first time instant by the first time period; the first time is a time when the user equipment receives the SPS PDSCH.

In some of the possible embodiments of the present invention,

the first duration is protocol defined.

In some possible implementations, the C-DRX is configured with a first indication that an active period of the C-DRX can be terminated prematurely.

When the communication device is a user equipment 101, its structure may also be as shown in fig. 11. Referring to fig. 11, apparatus 1100 may include one or more of the following components: a processing component 1102, a memory 1104, a power component 1106, a multimedia component 1108, an audio component 1110, an input/output (I/O) interface 1112, a sensor component 1114, and a communication component 1116.

The processing component 1102 generally controls overall operation of the apparatus 1100, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 1102 may include one or more processors 1120 to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 1102 can include one or more modules that facilitate interactions between the processing component 1102 and other components. For example, the processing component 1102 may include a multimedia module to facilitate interaction between the multimedia component 1108 and the processing component 1102.

Memory 1104 is configured to store various types of data to support operations at device 1100. Examples of such data include instructions for any application or method operating on the device 1100, contact data, phonebook data, messages, pictures, videos, and the like. The memory 1104 may be implemented by any type or combination of volatile or nonvolatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.

The power supply component 1106 provides power to the various components of the device 1100. The power supply component 1106 can include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 1100.

Multimedia component 1108 includes a screen between device 1100 and the user that provides an output interface. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or sliding action, but also the duration and pressure associated with the touch or sliding operation. In some embodiments, multimedia component 1108 includes a front camera and/or a rear camera. The front-facing camera and/or the rear-facing camera may receive external multimedia data when the device 1100 is in an operational mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

The audio component 1110 is configured to output and/or input an audio signal. For example, the audio component 1110 includes a Microphone (MIC) configured to receive external audio signals when the device 1000 is in an operational mode, such as a call mode, a recording mode, and a speech recognition mode. The received audio signals may be further stored in the memory 1104 or transmitted via the communication component 1116. In some embodiments, the audio component 1110 further comprises a speaker for outputting audio signals.

The I/O interface 1112 provides an interface between the processing component 1102 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.

The sensor assembly 1114 includes one or more sensors for providing status assessment of various aspects of the apparatus 1100. For example, the sensor assembly 1114 may detect the on/off state of the device 1100, the relative positioning of the components, such as the display and keypad of the device 1100, the sensor assembly 1114 may also detect a change in position of the device 1100 or a component of the device 1100, the presence or absence of user contact with the device 1100, the orientation or acceleration/deceleration of the device 1100, and a change in temperature of the device 1100. The sensor assembly 1114 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. The sensor assembly 1114 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 1114 may also include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 1116 is configured to facilitate communication between the apparatus 1100 and other devices in a wired or wireless manner. The device 1100 may access a wireless network based on a communication standard, such as WiFi,2G, or 3G, or a combination thereof. In one exemplary embodiment, the communication component 1116 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component 1116 further includes a Near Field Communication (NFC) module to facilitate short range communication. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the apparatus 1100 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic elements for executing the methods described above.

In an exemplary embodiment, a non-transitory computer-readable storage medium is also provided, such as a memory 1104 including instructions executable by the processor 1120 of the apparatus 1100 to perform the above-described method. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

Based on the same concept as the above method embodiment, the present disclosure further provides a downlink receiving apparatus, which may have the function of the network device 102 in the above method embodiment, and may be used to perform the steps performed by the network device 102 provided in the above method embodiment. The functions may be implemented by hardware, or may be implemented by software or hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the functions described above.

In one possible implementation, the apparatus 1200 shown in fig. 12 may be used as the network device 102 according to the method embodiment described above, and perform the steps performed by the network device 102 in the method embodiment described above. As shown in fig. 12, the apparatus 1200 may include a transceiver module 1201, wherein the transceiver module 1201 may be used to support communication by a communication apparatus.

In performing the steps performed by the network device 102, the transceiver module 1201 is configured to send configuration information to the user equipment 101, the configuration information being used to indicate the C-DRX configuration.

When the communication apparatus is the network device 102, its structure may also be as shown in fig. 13. The configuration of the communication device is described with reference to a base station. As shown in fig. 13, the apparatus 1300 includes a memory 1301, a processor 1302, a transceiver component 1303, and a power supply component 1306. The memory 1301 is coupled to the processor 1302 and can be used to store programs and data necessary for the communication apparatus 1300 to perform various functions. The processor 1302 is configured to support the communications apparatus 1300 to perform the corresponding functions of the methods described above, which can be implemented by invoking a program stored in the memory 1301. Transceiver component 1303 may be a wireless transceiver operable to support communication apparatus 1300 in receiving signaling and/or data over a wireless air interface and transmitting signaling and/or data. The transceiver component 1303 may also be referred to as a transceiver unit or a communication unit, and the transceiver component 1303 may include a radio frequency component 1304 and one or more antennas 1305, where the radio frequency component 1304 may be a remote radio frequency unit (remote radio unit, RRU), and may be specifically used for transmitting radio frequency signals and converting radio frequency signals to baseband signals, and the one or more antennas 1305 may be specifically used for radiating and receiving radio frequency signals.

When the communication device 1300 needs to transmit data, the processor 1302 may perform baseband processing on the data to be transmitted and output a baseband signal to the rf unit, where the rf unit performs rf processing on the baseband signal and then transmits the rf signal in the form of electromagnetic wave through the antenna. When data is transmitted to the communication device 1300, the radio frequency unit receives a radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor 1302, and the processor 1302 converts the baseband signal into data and processes the data.

Other implementations of the disclosed embodiments will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosed embodiments following, in general, the principles of the disclosed embodiments and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosed embodiments being indicated by the following claims.

It is to be understood that the disclosed embodiments are not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the embodiments of the present disclosure is limited only by the appended claims.

Industrial applicability

In the embodiment of the disclosure, the user equipment combines the service data receiving condition in the working period, and finishes running when the first channel is successfully received and the associated preset timer is finished, which indicates that no service data to be transmitted exists, and the user equipment can terminate the working period in advance before the working period is finished, so that unnecessary channel monitoring is avoided, and the energy consumption of the user equipment is saved.

Claims

A downlink reception method performed by a user equipment, the method comprising:

and in the working period of discontinuous reception (C-DRX) in the connected state, responding to successful reception of one or more first channels by the user equipment, and ending the working period without any preset timer associated with the first channels in the running state.
The method of claim 1, wherein,

and in the running period of the preset timer, the user equipment is in an activated state.
The method of claim 1, wherein,

the first channel is a physical downlink control channel PDCCH, or,

the first channel is a semi-persistent scheduling physical downlink shared channel, SPS PDSCH.
A method as claimed in claim 3, wherein the method further comprises:

And responding to the first channel as the PDCCH, and starting the preset timer after receiving downlink control information DCI transmitted by the PDCCH.
The method of claim 4, wherein the preset timer is at least one of the following C-DRX configured timers:

an inactivity timer;

a retransmission timer corresponding to the downlink hybrid automatic retransmission HARQ process scheduled by the PDCCH;

and a retransmission timer corresponding to the uplink hybrid automatic retransmission HARQ process scheduled by the PDCCH.
The method of claim 3, wherein,

in response to the first channel being an SPS PDSCH, the preset timer is a timer associated with the SPS PDSCH; and in the working period, starting the preset timer after the user equipment successfully receives the SPS PDSCH.
The method of claim 6, wherein the method further comprises:

responding to the SPS PDSCH received by the user equipment and successfully demodulated in a first time length, and starting the preset timer at a second time after the first time length is separated from the first time; the first time is the time when the user equipment receives the SPS PDSCH.
The method of claim 7, wherein,

the first duration is defined for a protocol.
The method according to claim 1 to 8, wherein,

the C-DRX is configured with a first identification indicating that an active period of the C-DRX can be terminated prematurely.
The method according to claim 2 to 8, wherein,

the SPS PDSCH is configured with a second identification to indicate that the configuration of C-DRX applies to transmissions of the SPS PDSCH.
A downlink receiving apparatus configured in a user equipment, the apparatus comprising:

and the processing module is used for responding to successful reception of one or more first channels by the user equipment in the working period of discontinuous reception C-DRX in the connected state, and ending the working period without any preset timer associated with the first channels being in the running state.
A communication device includes a processor and a memory, wherein,

the memory is used for storing a computer program;

the processor is configured to execute the computer program to implement the method of any one of claims 1-10.
A computer readable storage medium having instructions stored therein which, when invoked for execution on a computer, cause the computer to perform the method of any of claims 1-10.