CN111800843B - Method for monitoring PDCCH, method and device for configuring BWP - Google Patents

Abstract

An embodiment of the present invention provides a method for monitoring a PDCCH, a method and a device for configuring a BWP. The method includes: determining a first BWP, the first BWP being one of multiple BWPs configured on the network side, and the network side configuring one or more CORESETs for the first BWP; monitoring the first PDCCH at the first BWP, or monitoring the first PDCCH at the CORESET of the first BWP; wherein the first PDCCH is a PDCCH in the onduration of the CDRX corresponding to the first energy-saving signal , the first energy-saving signal indicates whether the terminal monitors the first PDCCH. In the embodiment of the present invention, when the terminal needs to monitor the PDCCH in the onduration of the CDRX corresponding to the energy-saving signal, the terminal can determine the BWP to monitor the PDCCH according to the network side configuration or a predefined method, so that the terminal can quickly complete data reception and ensure communication quality.

Description

Method for monitoring PDCCH, method and device for configuring BWP

technical field

Embodiments of the present invention relate to the field of communication technologies, and in particular to a method for monitoring a physical downlink control channel (Physical downlink control channel, PDCCH), and a method and device for configuring a bandwidth part (BWP).

Background technique

Currently, a terminal (such as a user equipment (User Equipment, UE)) can monitor an energy saving signal in an active (active) BWP.

However, if the UE needs to monitor the PDCCH of the onduration corresponding to the energy-saving signal, which BWP the UE monitors the PDCCH on is an urgent problem to be solved.

Contents of the invention

An object of the embodiments of the present invention is to provide a method for monitoring a PDCCH, a method and a device for configuring a BWP, so as to solve the problem of how a UE determines a BWP for monitoring a PDCCH.

In the first aspect, an embodiment of the present invention provides a method for monitoring a physical downlink control channel, which is applied to a terminal, including:

determining a first bandwidth part, where the first bandwidth part is one of multiple bandwidth parts configured by the network side, and the network side configures one or more control channel resource sets for the first bandwidth part;

Monitoring the first physical downlink control channel in the first bandwidth part, or monitoring the first PDCCH in the control channel resource set of the first BWP;

Wherein, the first physical downlink control channel is a physical downlink control channel within the duration of discontinuous reception in the connected state corresponding to the first energy saving signal, and the first energy saving signal indicates whether the terminal monitors the first physical downlink control channel.

In the second aspect, the embodiment of the present invention also provides a method for configuring a bandwidth part, which is applied to a network device, including:

Configuring a first bandwidth part, the first bandwidth part is used for the terminal to monitor the first physical downlink control channel, or the control channel resource set of the first bandwidth part is used for the terminal to monitor the first physical downlink control channel, and the first bandwidth part corresponds to one or more control channel resource sets;

Wherein, the first physical downlink control channel is a physical downlink control channel within the duration of discontinuous reception in the connected state corresponding to the first energy saving signal, and the first energy saving signal indicates whether the terminal monitors the first physical downlink control channel.

In a third aspect, an embodiment of the present invention further provides a terminal, including:

A determining module, configured to determine a first bandwidth part, where the first bandwidth part is one of a plurality of bandwidth parts configured by the network side, and the network side configures one or more control channel resource sets for the first bandwidth part;

A monitoring module, configured to monitor the first physical downlink control channel in the first bandwidth part, or monitor the first physical downlink control channel in the control channel resource set of the first bandwidth part;

Wherein, the first physical downlink control channel is a physical downlink control channel within the duration of discontinuous reception in the connected state corresponding to the first energy saving signal, and the first energy saving signal indicates whether the terminal monitors the first physical downlink control channel.

In a fourth aspect, the embodiment of the present invention further provides a network device, including:

A configuration module, configured to configure a first bandwidth part, the first bandwidth part is used for the terminal to monitor the first physical downlink control channel, or the control channel resource set of the first bandwidth part is used for the terminal to monitor the first physical downlink control channel, and the first bandwidth part corresponds to one or more control channel resource sets;

Wherein, the first physical downlink control channel is a physical downlink control channel within the duration of discontinuous reception in the connected state corresponding to the first energy saving signal, and the first energy saving signal indicates whether the terminal monitors the first physical downlink control channel.

In the fifth aspect, the embodiment of the present invention also provides a terminal, including: a processor, a memory, and a program stored on the memory and operable on the processor, and when the program is executed by the processor, the steps of the method for monitoring the physical downlink control channel as described in the first aspect are implemented.

In the sixth aspect, the embodiment of the present invention also provides a network device, including: a processor, a memory, and a program stored on the memory and operable on the processor, and when the program is executed by the processor, the steps of the method for configuring the bandwidth part described in the second aspect are implemented.

In the seventh aspect, the embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the method for monitoring a physical downlink control channel as described in the first aspect are implemented, or the steps of the method for configuring a bandwidth part as described in the second aspect.

In the embodiment of the present invention, when the terminal needs to monitor the PDCCH in the onduration of the CDRX corresponding to the energy-saving signal, the terminal can determine the BWP to monitor the PDCCH according to the configuration on the network side or independently, so that the terminal can quickly complete data reception and ensure communication quality.

Description of drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiment. The drawings are only for the purpose of illustrating a preferred embodiment and are not to be considered as limiting the invention. Also throughout the drawings, the same reference numerals are used to designate the same components. In the attached picture:

FIG. 1 is a schematic diagram of a DRX cycle;

FIG. 2 is a schematic diagram of a wake-up signal of CDRX;

FIG. 3 is a schematic structural diagram of a wireless communication system according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a method for monitoring a PDCCH according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a method for configuring a BWP according to an embodiment of the present invention;

FIG. 6 is one of schematic diagrams of a terminal according to an embodiment of the present invention;

FIG. 7 is one of schematic diagrams of a network device according to an embodiment of the present invention;

FIG. 8 is a second schematic diagram of a terminal according to an embodiment of the present invention;

FIG. 9 is a second schematic diagram of a network device according to an embodiment of the present invention.

Detailed ways

In order to facilitate the understanding of the embodiments of the present invention, several technical points are introduced below:

(1) Discontinuous Reception (DRX) in Radio Resource Control (RRC) idle (RRC_IDLE) state:

In the Long Term Evolution (LTE) or fifth generation mobile communication (fifth generation, 5G) system, the UE in the RRC_IDLE state needs to detect the paging signal sent by the base station at a preconfigured time, and the process of detecting the paging signal is as follows:

Blindly detect the physical downlink control channel (PDCCH) corresponding to the paging radio network temporary identifier (Paging-RNTI, P-RNTI), if the PDCCH is not detected, enter the end of this detection; if the PDCCH is detected, then further detect the physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) indicated by the PDCCH, if the detected PDSCH is not the paging signal of the UE , the detection ends; otherwise, the detected PDSCH is the paging signal of the user.

The UE in the RRC_IDLE state periodically detects paging signals, and the probability of receiving the paging signals belonging to the UE is relatively low, and the power consumption of PDCCH and PDSCH detected each time is relatively large, which is not conducive to terminal power saving.

(2) DRX in the RRC connected state:

The basic mechanism of DRX is to configure a DRX cycle (cycle) for the UE in the RRC_CONNECTED state. DRXcycle consists of "On Duration" and "Opportunity for DRX": During the "On Duration", UE monitors and receives PDCCH (activation period); during the "Opportunity for DRX" time, UE does not receive downlink channel data to save power consumption (sleep period).

It can be seen from Figure 1 that in the time domain, time is divided into successive DRX Cycles.

drxStartOffset specifies the starting subframe of the DRX cycle, and longDRX-Cycle specifies how many subframes a long (long) DRX cycle occupies. These two parameters are determined by the longDRX-CycleStartOffset field. onDurationTimer specifies the number of consecutive subframes for which the PDCCH needs to be monitored starting from the start subframe of the DRX cycle (that is, the number of subframes for which the active period lasts).

In most cases, when a UE is scheduled and receives or sends data in a certain subframe, it is likely to continue to be scheduled in the next few subframes. If it has to wait until the next DRX cycle to receive or send these data, it will bring additional delay. In order to reduce this kind of delay, after being scheduled, the UE will continue to be in the active period, that is, it will continue to monitor the PDCCH during the configured active period. The implementation mechanism is: whenever the UE is scheduled to transmit data initially, a timer (drx-InactivityTimer) will be started (or restarted), and the UE will remain in the active state until the timer times out. drx-InactivityTimer specifies the number of consecutive subframes that remain in the active state after the UE successfully decodes a PDCCH indicating initially transmitted uplink (Uplink, UL) or downlink (Downlink, DL) user data. That is, the timer is restarted every time the UE initially transmits data to be scheduled. .

In order to further save the power consumption of blind detection of paging (Paging) signal or PDCCH under the above-mentioned two kinds of DRX, the concepts of wake-up signal (wake-up signal, WUS) and sleep signal (collectively referred to as power saving signal (power saving signal)) are proposed.

(3) Energy saving signal of RRC_IDLE or RRC inactive (RRC_inactive) state:

In each paging (Paging) cycle in the idle state, before the paging occasion (Paging Occasion, PO), the base station transmits an energy saving signal to the UE, and the UE detects the energy saving signal at a corresponding time.

If the energy-saving signal indicates that the UE detects the PDCCH at PO time, then the UE detects the PDCCH;

If the energy-saving signal does not instruct the UE to detect the PDCCH at the PO time, then the UE does not detect the PDCCH;

Optionally, detecting the energy-saving signal has lower complexity and saves more power than blindly detecting the Paging signal or the PDCCH.

(4) Energy-saving signal in RRC connection state:

In each connected discontinuous reception (Connected DRX, CDRX) period in the RRC connected state, before the onduration, the base station transmits an energy-saving signal to a UE or a group of UEs, and the UE or the group of UEs detects the energy-saving signal at a corresponding time.

Referring to FIG. 2, if the UE or the group of UEs receives an energy-saving signal, and the energy-saving signal indicates that the UE or the group of UEs detects the PDCCH in onduration, or indicates that the UE or the group of UEs wakes up (wake up), then the UE or the group of UEs detects the PDCCH;

If the UE or the group of UEs receives the energy-saving signal, and the energy-saving signal does not indicate the UE, the UE or the group of UEs to detect the PDCCH in onduration, or indicate the UE or the group of UEs to sleep (go to sleep), then the UE, the UE or the group of UEs does not detect the PDCCH;

If the UE or the group of UEs does not receive the energy saving signal, the UE or the group of UEs either detects the PDCCH in the onduration, or does not detect the PDCCH in the onduration.

The above-mentioned energy-saving signal may be a signal similar to PDCCH, or a sequence-related signal such as Channel State Indication-Reference Signals (CSI-RS), or an on-off keying (on-off keying, OOK) signal.

(5) timer based BWP fallback mechanism:

If the UE does not receive the PDCCH scrambled by the cell radio network temporary identifier (Cell RNTI, C-RNTI) or configured scheduling (Configured Scheduling RNTI, CS-RNTI) within a certain period of time, the UE falls back to the default downlink bandwidth part (default DL BWP). The default DL BWP is configured by the network side through RRC signaling. If the default DL BWP is not configured on the network side, the default DL BWP is the initial downlink bandwidth part (initial DL BWP).

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

The term "comprising" and any variations thereof in the description and claims of the present application are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or that are inherent to these processes, methods, products or devices. In addition, the use of "and/or" in the description and claims means at least one of the connected objects, such as A and/or B, means that there are three situations including A alone, B alone, and both A and B.

In the embodiments of the present invention, words such as "exemplary" or "for example" are used as examples, illustrations or illustrations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present invention shall not be construed as being more preferred or more advantageous than other embodiments or design solutions. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete manner.

The techniques described herein are not limited to Long Time Evolution (LTE)/LTE-Advanced (LTE-A) systems, and can also be used in various wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (Orthogonal Frequency Division Multiple Access, OFDMA), Single-carrier Frequency-Division Multiple Access (Single-carrier Frequency-Division Multiple Access, SC-FDMA) and other systems.

The terms "system" and "network" are often used interchangeably. A CDMA system may implement radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA), and the like. UTRA includes Wideband CDMA (Wideband Code Division Multiple Access, WCDMA) and other CDMA variants. A TDMA system can implement a radio technology such as Global System for Mobile Communication (GSM). The OFDMA system can implement radio technologies such as Ultra Mobile Broadband (Ultra Mobile Broadband, UMB), Evolution-UTRA (Evolution-UTRA, E-UTRA), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, and Flash-OFDM. UTRA and E-UTRA are part of Universal Mobile Telecommunications System (UMTS). LTE and LTE-Advanced (like LTE-A) are new UMTS releases that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A and GSM are described in documents from an organization named "3rd Generation Partnership Project" (3GPP). CDMA2000 and UMB are described in documents from an organization named "3rd Generation Partnership Project 2" (3GPP2). The techniques described herein may be used for the systems and radio technologies mentioned above as well as other systems and radio technologies.

Embodiments of the present invention will be described below in conjunction with the accompanying drawings. A method for monitoring a PDCCH, a method for configuring a BWP, and a device provided in the embodiments of the present invention can be applied to a wireless communication system. Referring to FIG. 3 , it is a schematic structural diagram of a wireless communication system provided by an embodiment of the present invention. As shown in FIG. 3, the wireless communication system may include: a network device 31 and a terminal 32, the terminal 32 may be referred to as UE32, and the terminal 32 may communicate with the network device 31 (transmit signaling or data). In practical applications, the connection between the above devices may be a wireless connection. In order to conveniently and intuitively represent the connection relationship between the devices, solid lines are used in FIG. 3 .

The network device 31 provided in the embodiment of the present invention may be a base station, and the base station may be a commonly used base station, may also be an evolved base station (evolved node base station, eNB), and may also be a network device in a 5G system (for example, a next generation base station (next generation node base station, gNB) or a transmission and reception point (transmission and reception point, TRP)) and other devices.

The terminal 32 provided by the embodiment of the present invention may be a mobile phone, a tablet computer, a notebook computer, an ultra-mobile personal computer (Ultra-Mobile Personal Computer, UMPC), a netbook or a personal digital assistant (Personal Digital Assistant, PDA), a mobile Internet device (Mobile Internet Device, MID), a wearable device (Wearable Device) or a vehicle-mounted device.

Referring to FIG. 4 , an embodiment of the present invention provides a method for determining a BWP. The method may be executed by a terminal, and includes steps 401 and 402 .

Step 401: Determine the first BWP, the first BWP is one of the multiple BWPs configured by the network side, and the network side configures one or more control channel resource sets (Control resource set, CORESET), or control resource sets, for the first BWP;

For example, the network side configures multiple BWPs through RRC signaling, and then the network side configures one of the BWPs as the first BWP through higher layer signaling or a Medium Access Control-Control Element (MAC-CE).

Step 402: Monitor the first PDCCH on the first BWP, or monitor the first PDCCH on the CORESET of the first BWP.

Wherein, the first PDCCH is the duration (onduration) of the connected discontinuous reception (Connected Discontinuous Reception, CDRX) of the primary cell (Primary Cell, Pcell) or primary secondary cell (Primary Secondary Cell, PScell) or secondary cell (Secondary Cell, Scell) corresponding to the first energy-saving signal or further includes the PDCCH within the DRX activation time (active time), and the first energy-saving signal indicates whether the terminal monitors The first PDCCH.

The above-mentioned energy-saving signal may be a signal similar to PDCCH, or a sequence-related signal such as CSI-RS, or an OOK signal.

Optionally, before step 401, the terminal may monitor the first energy-saving signal sent by the Pcell or PScell.

In some embodiments, the first PDCCH is a PDCCH in the onduration of the CDRX of the primary cell Pcell or the primary secondary cell PScell corresponding to the first energy-saving signal;

Correspondingly, the first BWP includes one or more of the following:

(1) The network side configures a BWP of Pcell or PScell for the terminal;

Further, the first BWP is one of multiple BWPs indicated by the network side to the Pcell or PScell through high layer signaling (such as RRC) or MAC-CE.

(2) Activate BWP of the terminal on the Pcell or PScell;

For example: the activated BWP of the terminal on the Pcell or PScell may be the current activated BWP of the terminal on the Pcell or PScell, or the latest activated BWP of the terminal on the Pcell or PScell, for example, the BWP activated in the last CDRX cycle, or the BWP that listens to the first PDCCH at the beginning or end of the last wake-up DRX active time.

(3) The terminal's default (default) BWP in Pcell or PScell;

(4) Initial (initial) BWP of the terminal in Pcell or PScell

(5) The BWP where the first energy saving signal is located.

In some embodiments, the first PDCCH is a PDCCH in the onduration of the CDRX of the secondary cell (SecondaryCell, Scell) corresponding to the first energy-saving signal;

Correspondingly, the first BWP includes one or more of the following:

(1) The network side configures a BWP of the Scell for the terminal;

Further, the first BWP is one of the multiple BWPs for which the network side indicates the Scell through high layer signaling or MAC-CE.

(2) The activated BWP of the terminal on the Scell;

For example: the activated BWP of the terminal on the Scell may be the current activated BWP of the terminal on the Scell, or the last activated BWP of the terminal on the Scell, for example, the BWP of the Scell activated in the last CDRX cycle, or the BWP of monitoring the first PDCCH at the beginning or end of the last wake-up DRX active time.

(3) the default default BWP of the terminal in the Scell;

(4) the initial initial BWP of the terminal in the Scell;

(5) The BWP of the Scell, wherein the BWP of the Scell is associated with the BWP of the Pcell or PScell where the energy-saving signal is located.

For example, a Pcell has two RRC-configured BWPs, BWP1 is 20MHz, and BWP2 is 100Mhz; a Scell has two RRC-configured BWPs, BWP3 is 20MHz, and BWP4 is 100Mhz; at this time, associate BWP1 of the Pcell with BWP3 of the Scell, and associate BWP2 of the Pcell with BWP4 of the Scell.

In the embodiment of the present invention, when the terminal needs to monitor the PDCCH in the onduration of the Pcell, PScell, or SCell CDRX corresponding to the energy-saving signal, the terminal can determine the BWP to monitor the PDCCH according to the network side configuration or a predefined method, so that the terminal can quickly complete data reception and ensure communication quality.

Referring to FIG. 5 , the embodiment of the present invention also provides a method for configuring a BWP, the method is executed by a network device, and the specific steps include: Step 501 .

Step 501: Configure a first BWP, the first BWP is used for the terminal to monitor the first PDCCH, or the CORESET of the first BWP is used for the terminal to monitor the first PDCCH, and the first BWP corresponds to one or more CORESETs;

Wherein, the first PDCCH is the CDRX onduration of the primary cell or the primary secondary cell or the secondary cell corresponding to the first energy saving signal or further includes a PDCCH within the DRX active time (active time), and the first energy saving signal indicates whether the terminal monitors the first PDCCH.

In some implementation manners, the first PDCCH is a PDCCH within the onduration of the CDRX of the Pcell or PScell corresponding to the first energy-saving signal. In step 501, a first BWP of a Pcell or PScell is configured for a terminal through high layer signaling or MAC-CE.

In some other implementation manners, the first PDCCH is a PDCCH within the onduration of the CDRX of the Scell corresponding to the first energy-saving signal. In step 501, the first BWP of the Scell is configured for the terminal through high layer signaling or MAC-CE.

In the embodiment of the present invention, when the energy-saving signal that the terminal needs to monitor corresponds to the PDCCH in the onduration of the CDRX of the Scell, the terminal can determine the BWP to monitor the PDCCH according to the configuration on the network side or independently, so that the terminal can quickly complete data reception and ensure communication quality.

The technical solutions of the embodiments of the present invention are introduced below in conjunction with Scenario 1 and Scenario 2.

scene 1:

In the Non-Carrier Aggregation (Non-CA) scenario, the UE monitors the WUS of the primary cell or primary secondary cell (Pcell/PScell) to determine whether to monitor the PDCCH in the onduration of the CDRX of the Pcell/PScell corresponding to the WUS. At this time, how to determine which BWP monitors the PDCCH is referred to Embodiment 1 to Embodiment 4.

Implementation mode 1:

The network side configures a first BWP for the Pcell/PScell through RRC signaling. Optionally, the first BWP may be one of N (for example, N=1, 2, or 4, etc.) BWPs configured by the RRC for the Pcell/PScellC.

If the UE needs to monitor the PDCCH in the onduration of the CDRX of the Pcell/PScell corresponding to the WUS, the UE monitors the PDCCH in the first BWP or the CORESET of the first BWP.

In Embodiment 1, under the timer-based BWP fallback (timer based BWP fallback) mechanism, if the UE does not receive the PDCCH scrambled by the C-RNTI or CS-RNTI within a certain period of time, the UE falls back to the default DL BWP. At this time, the active BWP is the default DL BWP, and the UE monitors the energy-saving signal in the default DL BWP. If the UE needs to monitor the PDCCH in the onduration of the CDRX of the Pcell/PScell corresponding to the WUS at this time, for example, the WUS indicates that the UE needs to monitor the PDCCH. At this time, the base station can configure a wider first BWP for the Pcell/PScell through RRC, and the UE monitors the PDCCH in the first BWP and quickly completes data reception.

Implementation mode 2:

The UE monitors the PDCCH on the current active BWP (or the latest active BWP, such as the last awakened BWP) of the Pcell/PScell;

Or, the UE monitors the PDCCH on the CORESET of the current active BWP of the Pcell/PScell (or the latest active BWP, such as the last awakened BWP).

Implementation mode 3:

The UE monitors the PDCCH on the default BWP/initial BWP of the Pcell/PScell;

Or, the UE monitors the PDCCH on the CORESET of the current active BWP of the Pcell/PScell (or the latest active BWP, such as the last awakened BWP).

Implementation mode 4:

The UE monitors the PDCCH in the BWP where the WUS is located;

Or, the UE monitors the PDCCH on the CORESET of the BWP where the WUS is located.

In the above embodiments, if the UE needs to monitor the PDCCH in the onduration of the CDRX of the Pcell/PScell corresponding to the WUS, for example, the WUS indicates that the UE needs to monitor the PDCCH, then the UE can determine the BWP according to any of the methods in Embodiments 2 to 4, and the UE monitors the PDCCH at the BWP and quickly completes data reception.

Scenario 2:

In the New Radio (NR) CA scenario, the UE monitors the WUS on the Pcell/PScell to determine whether to monitor the PDCCH in the onduration of the CDRX of the secondary cell (Secondary Cell, Scell) corresponding to the WUS. For how to determine which BWP monitors the PDCCH, refer to Embodiment 1 to Embodiment 4.

Implementation mode 1:

RRC configures a second BWP for the Scell. Optionally, the first BWP may be one of N (N=1, 2 or 4, etc.) BWPs configured by the RRC for the Scell.

If the UE needs to monitor the PDCCH in the onduration of the CDRX of the Scell corresponding to the WUS, the UE monitors the PDCCH in the first BWP or the CORESET of the first BWP.

If the UE needs to monitor the PDCCH in the onduration of the CDRX of the Scell corresponding to the WUS, for example, the WUS indicates that the UE needs to monitor the PDCCH; at this time, the base station can configure a wider first BWP for the Scell through RRC, and the UE monitors the PDCCH on the first BWP and quickly completes data reception.

Implementation mode 2:

The UE monitors the PDCCH on the current active BWP of the Scell (or the latest active BWP, such as the last awakened BWP);

Or, the UE monitors the PDCCH on the CORESET of the current active BWP (or the latest active BWP, such as the last awakened BWP) of the Scell.

Implementation mode 3:

The UE monitors the PDCCH in the default BWP or initial BWP of the Scell;

Or, the UE monitors the PDCCH on the default BWP or the CORESET of the initial BWP of the Scell.

Implementation mode 4:

The UE monitors the PDCCH at the BWP of the Scell associated with the BWP of the Pcell/PScell where the WUS is located.

For example, a Pcell has two RRC-configured BWPs, BWP1 is 20MHz, and BWP2 is 100Mhz; a Scell has two RRC-configured BWPs, BWP3 is 20MHz, and BWP4 is 100Mhz; at this time, associate BWP1 of the Pcell with BWP3 of the Scell, and associate BWP2 of the Pcell with BWP4 of the Scell.

In the above embodiments, if the UE needs to monitor the PDCCH in the onduration of the CDRX of the Scell corresponding to the WUS, for example, the WUS indicates that the UE needs to monitor the PDCCH, at this time, the UE can determine the BWP according to any of the methods in Embodiments 2 to 4, and the UE monitors the PDCCH at the BWP and quickly completes data reception.

The embodiment of the present invention also provides a terminal. Since the problem-solving principle of the network device is similar to the method for determining the BWP in the embodiment of the present invention, the implementation of the terminal can refer to the implementation of the method, and the repetition will not be repeated.

Referring to FIG. 6 , an embodiment of the present invention also provides a terminal, and the terminal 600 includes:

A determining module 601, configured to determine a first BWP, where the first BWP is one of multiple BWPs configured on the network side, and the network side configures one or more CORESETs for the first BWP;

A monitoring module 602, configured to monitor the first PDCCH at the first BWP, or monitor the first PDCCH at the CORESET of the first BWP;

Wherein, the first PDCCH is the CDRX onduration of the primary cell or the primary secondary cell or the secondary cell corresponding to the energy saving signal or further includes a PDCCH within DRX active time, and the first energy saving signal indicates whether the terminal monitors the first PDCCH.

In some embodiments, the first PDCCH is a PDCCH in the onduration of the CDRX of the primary cell (PrimaryCell, Pcell) or the primary secondary cell (Primary Secondary Cell, PScell) corresponding to the first energy-saving signal;

The first BWP includes one or more of the following:

(1) The network side configures a BWP of Pcell or PScell for the terminal;

Further, the first BWP is one of multiple BWPs indicated by the network side to the Pcell or PScell through high layer signaling (such as RRC) or MAC-CE.

(2) Activate BWP of the terminal on the Pcell or PScell;

For example, the activated BWP of the terminal on the Pcell or PScell may be the current activated BWP of the terminal on the Pcell or PScell, or the last activated BWP of the terminal on the Pcell or PScell, for example, the BWP of the Pcell or PScell activated in the last CDRX cycle, or the BWP of monitoring the first PDCCH at the beginning or end of the last wake-up DRX active time.

(3) The terminal's default (default) BWP in Pcell or PScell;

(4) The initial (initial) BWP of the terminal in the Pcell or PScell

(5) The BWP where the first energy saving signal is located.

In some embodiments, the first PDCCH is a PDCCH in the onduration of the CDRX of the Scell corresponding to the first energy-saving signal;

The first BWP includes one or more of the following:

(1) The network side configures a BWP of the Scell for the terminal;

Further, the first BWP is one of the multiple BWPs for which the network side indicates the Scell through high layer signaling or MAC-CE.

(2) The activated BWP of the terminal on the Scell;

For example: the activated BWP of the terminal on the Scell may be the current activated BWP of the terminal on the Scell, or the last activated BWP of the terminal on the Scell, for example, the BWP of the Scell activated in the last CDRX cycle, or the BWP of monitoring the first PDCCH at the beginning or end of the last wake-up DRX active time.

(3) the default BWP of the terminal in the Scell;

(4) the initial BWP of the terminal in the Scell;

(5) The BWP of the Scell, wherein the BWP of the Scell is associated with the BWP of the Pcell or PScell where the first energy-saving signal is located.

For example, a Pcell has two RRC-configured BWPs, BWP1 is 20MHz, and BWP2 is 100Mhz; a Scell has two RRC-configured BWPs, BWP3 is 20MHz, and BWP4 is 100Mhz; at this time, associate BWP1 of the Pcell with BWP3 of the Scell, and associate BWP2 of the Pcell with BWP4 of the Scell.

The terminal provided by the embodiment of the present invention can execute the above-mentioned embodiment shown in FIG. 4 , and its implementation principle and technical effect are similar, and details will not be repeated here in this embodiment.

The embodiment of the present invention also provides a network device. Since the problem-solving principle of the network device is similar to the method for configuring BWP in the embodiment of the present invention, the implementation of the network device can refer to the implementation of the method, and the repetition will not be repeated.

Referring to FIG. 7, an embodiment of the present invention also provides a network device, the network device 700 includes:

The configuration module 701 is configured to configure a first BWP, the first BWP is used for the terminal to monitor the first PDCCH, or the CORESET of the first BWP is used for the terminal to monitor the first PDCCH, and the first BWP corresponds to one or more CORESETs;

Wherein, the first PDCCH is the CDRX onduration of the primary cell or the primary secondary cell or the secondary cell corresponding to the energy saving signal or a PDCCH within the DRX active time, and the first energy saving signal indicates whether the terminal monitors the first PDCCH.

In some implementations, the first PDCCH is the PDCCH in the onduration of the CDRX of the Pcell or PScell corresponding to the first energy-saving signal; further, the configuration module 701 is further configured to: configure the first BWP of the Pcell or PScell for the terminal through high-layer signaling or MAC-CE.

In some other implementation manners, the first PDCCH is a PDCCH in the onduration of the CDRX of the Scell corresponding to the first energy-saving signal; further, the configuration module 701 is further configured to: configure the first BWP of the Scell for the terminal through high-layer signaling or MAC-CE.

The network device provided by the embodiment of the present invention can implement the above-mentioned embodiment shown in FIG. 5 , and its implementation principle and technical effect are similar, and details will not be repeated here in this embodiment.

As shown in FIG. 8 , the terminal 800 shown in FIG. 8 includes: at least one processor 801 , a memory 802 , at least one network interface 804 and a user interface 803 . Various components in the terminal 800 are coupled together through a bus system 805 . It can be understood that the bus system 805 is used to realize connection and communication between these components. In addition to the data bus, the bus system 805 also includes a power bus, a control bus and a status signal bus. However, the various buses are labeled as bus system 805 in FIG. 8 for clarity of illustration.

Wherein, the user interface 803 may include a display, a keyboard, or a pointing device (for example, a mouse, a trackball (trackball), a touch panel, or a touch screen, and the like.

It can be understood that the memory 802 in the embodiment of the present invention may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories. Wherein, the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or a flash memory. The volatile memory can be Random Access Memory (RAM), which acts as an external cache. By way of illustration and not limitation, many forms of RAM are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (Synchronous DRAM, SDRAM), Double Data Rate Synchronous DRAM (DDRSDRAM), Enhanced Synchronous DRAM (Enhanced SDRAM, ESDRAM), Synchronous Linked DRAM memory (Synchlink DRAM, SLDRAM) and direct memory bus random access memory (DirectRambus RAM, DRRAM). The memory 802 of the systems and methods described in embodiments of the present invention is intended to include, but is not limited to, these and any other suitable types of memory.

In some implementations, the memory 802 stores the following elements, executable modules or data structures, or their subsets, or their extended sets: an operating system 8021 and an application program 8022 .

Among them, the operating system 8021 includes various system programs, such as framework layer, core library layer, driver layer, etc., for realizing various basic services and processing hardware-based tasks. The application program 8022 includes various application programs, such as a media player (Media Player), a browser (Browser), etc., and is used to implement various application services. The program for realizing the method of the embodiment of the present invention may be included in the application program 8022 .

In one embodiment of the present invention, the steps described in the above method in FIG. 4 are implemented by calling the programs or instructions stored in the memory 802 , specifically, the programs or instructions stored in the application program 8022 .

The terminal provided by the embodiment of the present invention can execute the above-mentioned embodiment of the method for determining the BWP, and its implementation principle and technical effect are similar, and details will not be repeated here in this embodiment.

Referring to FIG. 9, FIG. 9 is a structural diagram of a network device applied in an embodiment of the present invention. As shown in FIG. 9, the network device 900 includes: a processor 901, a transceiver 902, a memory 903, and a bus interface, wherein the processor 901 can be responsible for managing the bus architecture and general processing. The memory 903 may store data used by the processor 901 when performing operations.

In an embodiment of the present invention, the network device 900 further includes: a computer program stored in the memory 903 and operable on the processor 901, and the computer program is executed by the processor 901 to implement the steps in the method shown in FIG. 5 above.

In FIG. 9 , the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 901 and various circuits of memory represented by memory 903 are linked together. The bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and therefore will not be further described herein. The bus interface provides the interface. Transceiver 902 may be a plurality of elements, including a transmitter and a receiver, providing a means for communicating with various other devices over transmission media.

The network device provided by the embodiment of the present invention can execute the above-mentioned embodiment of the method for configuring the BWP, and its implementation principle and technical effect are similar, and will not be repeated here in this embodiment.

The steps of the methods or algorithms described in conjunction with the disclosure of the present invention may be implemented in the form of hardware, or may be implemented in the form of a processor executing software instructions. The software instructions can be composed of corresponding software modules, and the software modules can be stored in RAM, flash memory, ROM, EPROM, EEPROM, registers, hard disk, removable hard disk, CD-ROM or any other storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be a component of the processor. The processor and storage medium can be located in the ASIC. In addition, the ASIC may be located in the core network interface device. Certainly, the processor and the storage medium may also exist in the core network interface device as discrete components.

Those skilled in the art should be aware that, in the above one or more examples, the functions described in the present invention may be implemented by hardware, software, firmware or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

The above-mentioned specific implementation mode has further described the purpose, technical solution and beneficial effect of the present invention in detail. It should be understood that the above-mentioned description is only a specific implementation mode of the present invention, and is not used to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made on the basis of the technical solution of the present invention shall be included in the protection scope of the present invention.

Those skilled in the art should understand that the embodiments of the present invention may be provided as methods, systems, or computer program products. Accordingly, embodiments of the invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, embodiments of the invention may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

Embodiments of the present invention are described with reference to flowcharts and/or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions can be provided to the processors of general-purpose computers, special-purpose computers, embedded processors or other programmable data processing devices to produce a machine, so that the instructions executed by the processors of the computer or other programmable data processing devices generate means for realizing the functions specified in one or more processes of the flow chart and/or one or more blocks of the block diagram.

These computer program instructions can also be stored in a computer-readable memory capable of directing a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means that implement the functions specified in one or more flows of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to generate computer-implemented processing, so that the instructions executed on the computer or other programmable equipment provide steps for realizing the functions specified in one flow or multiple flows of the flow chart and/or one or more square blocks of the block diagram.

Apparently, those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the present invention. In this way, if the modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (12)

1. A method for monitoring a physical downlink control channel, applied to a terminal, characterized in that it comprises: determining a first bandwidth part, where the first bandwidth part is one of multiple bandwidth parts configured by the network side, and the network side configures one or more control channel resource sets for the first bandwidth part; Monitoring the first physical downlink control channel in the first bandwidth part, or monitoring the first physical downlink control channel in the control channel resource set of the first bandwidth part; Wherein, the first physical downlink control channel is a physical downlink control channel within the duration of discontinuous reception in the connected state corresponding to the first energy-saving signal, and the first energy-saving signal indicates whether the terminal monitors the first physical downlink control channel. 2. The method of claim 1, wherein, The first physical downlink control channel is a physical downlink control channel within the duration of discontinuous reception of the connected state of the primary cell or primary secondary cell corresponding to the first energy-saving signal; The first bandwidth part includes one or more of the following: The network side configures a bandwidth part of the primary cell or the primary and secondary cells; The active bandwidth part of the terminal in the primary cell or the primary and secondary cells; The default bandwidth part of the terminal in the primary cell or the primary and secondary cells; The initial bandwidth part of the terminal in the primary cell or the primary and secondary cells; The bandwidth part where the first energy-saving signal is located. 3. The method according to claim 2, wherein the first bandwidth portion is one of multiple bandwidth portions indicated by the network side to the primary cell or primary secondary cell through high-level signaling or a medium access control layer control unit. 4. The method of claim 1, wherein, The first physical downlink control channel is a physical downlink control channel within the duration of the connected state discontinuous reception of the secondary cell corresponding to the first energy-saving signal; The first bandwidth part includes one or more of the following: The network side configures a bandwidth part of the secondary cell; The active bandwidth part of the terminal in the secondary cell; The default bandwidth part of the terminal in the secondary cell; The initial bandwidth portion of the terminal in the secondary cell; The bandwidth part of the secondary cell, wherein the bandwidth part of the secondary cell is associated with the bandwidth part of the primary cell or the primary secondary cell where the first energy-saving signal is located. 5 . The method according to claim 4 , wherein the first bandwidth portion is one of multiple bandwidth portions indicated by the network side to the secondary cell through high-level signaling or a media access control layer control unit. 6 . 6. A method for configuring bandwidth parts, applied to network equipment, characterized in that, comprising: Configuring a first bandwidth part, the first bandwidth part is used for the terminal to monitor the first physical downlink control channel, or the control channel resource set of the first bandwidth part is used for the terminal to monitor the first physical downlink control channel, and the first bandwidth part corresponds to one or more control channel resource sets; Wherein, the first physical downlink control channel is a physical downlink control channel within the duration of discontinuous reception in the connected state corresponding to the first energy-saving signal, and the first energy-saving signal indicates whether the terminal monitors the first physical downlink control channel. 7. The method of claim 6, wherein, The first physical downlink control channel is a physical downlink control channel within the duration of discontinuous reception of the connected state of the primary cell or primary secondary cell corresponding to the first energy-saving signal; The configuration of the first bandwidth part includes: Indicating the first bandwidth part of the primary cell or the primary and secondary cells through high-layer signaling or a medium access control layer control unit; or, The first physical downlink control channel is a physical downlink control channel within the duration of the connected state discontinuous reception of the secondary cell corresponding to the first energy-saving signal; The configuration of the first bandwidth part includes: Indicating the first bandwidth portion of the secondary cell through high-layer signaling or a medium access control layer control unit. 8. A terminal, characterized in that, comprising: A determining module, configured to determine a first bandwidth part, where the first bandwidth part is one of a plurality of bandwidth parts configured by the network side, and the network side configures one or more control channel resource sets for the first bandwidth part; A monitoring module, configured to monitor the first physical downlink control channel in the first bandwidth part, or monitor the first physical downlink control channel in the control channel resource set of the first bandwidth part; Wherein, the first physical downlink control channel is a physical downlink control channel within the duration of discontinuous reception in the connected state corresponding to the first energy-saving signal, and the first energy-saving signal indicates whether the terminal monitors the first physical downlink control channel. 9. A network device, characterized in that, comprising: A configuration module, configured to configure a first bandwidth part, the first bandwidth part is used for the terminal to monitor the first physical downlink control channel, or the control channel resource set of the first bandwidth part is used for the terminal to monitor the first physical downlink control channel, and the first bandwidth part corresponds to one or more control channel resource sets; Wherein, the first physical downlink control channel is a physical downlink control channel within the duration of discontinuous reception in the connected state corresponding to the first energy-saving signal, and the first energy-saving signal indicates whether the terminal monitors the first physical downlink control channel. 10. A terminal, characterized in that it comprises: a processor, a memory, and a program stored on the memory and operable on the processor, when the program is executed by the processor, the steps of the method for monitoring the physical downlink control channel according to any one of claims 1 to 5 are implemented. 11. A network device, characterized in that it comprises: a processor, a memory, and a program stored on the memory and operable on the processor, when the program is executed by the processor, the steps of the method for configuring the bandwidth part as described in any one of claims 6 to 7 are realized. 12. A computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method for monitoring a physical downlink control channel according to any one of claims 1 to 5 are implemented, or the steps of the method for configuring a bandwidth part according to any one of claims 6 to 7.