RU2800588C2 - User equipment method and user equipment - Google Patents

Abstract

FIELD: physical downlink control channel.

SUBSTANCE: invention relates to means for determining the first tracking event of a physical downlink control channel (PDCCH). The paging-related parameters are received from the base station, the paging-related parameters including information associated with the paging search space configuration parameter and determining, according to the information associated with the paging search space configuration parameter, a binding mechanism for matching a PDCCH snooping event in paging search space to a PDCCH snooping event for a paging, where if the information indicates that a paging search space configuration parameter has been configured and the search space indicated by the paging search space configuration parameter is not a generic type0-PDCCH search space, a non-standard binding mechanism is used; if the information indicates that the paging search space configuration parameter is not configured, or the information associated with the paging search space configuration parameter indicates that the paging search space configuration parameter has been configured and the search space indicated by the paging search space configuration parameter, represents the common type0-PDCCH search space, use the standard binding mechanism.

EFFECT: ensuring that all PDCCH tracking events for paging specified in time division duplexing (TDD) are "valid PDCCH tracking events".

3 cl, 8 dwg

Description

Technical field

The present invention relates to the field of wireless communication technology, and more specifically to the method performed by the user equipment and the corresponding user equipment.

Prerequisites for the creation of the invention

In March 2016, RAN Plenary No. 71 of the 3rd Generation Systems Partnership Project (3GPP) approved a new research project on 5G technology standards (see Non-Patent Document 1). The goal of the research project is to develop a new radio access technology (NR) that meets all application scenarios, requirements and needs of the 5G network deployment environment. NR has three application scenarios: Evolved Mobile Broadband (eMBB), Machine Type Mass Communication (mMTC) and Ultra Reliable Low Latency Communication (URLLC). In June 2017, at the RAN Plenary No. 75 of the 3GPP project, the corresponding working draft on NR 5G technology was approved (see non-patent document 2).

5G communication supports the paging mechanism. For example, when a network wants to initiate a connection with a particular user equipment (UE), but that UE is in the RRC_IDLE or RRC_INACTIVE state, the network may paging to one or more specific areas (eg, tracking area) to page that UE. On the other hand, in order to reduce the power consumption of the UE, 5G also supports discontinuous reception (DRX), and its underlying mechanism is to configure the DRX cycle for the UE so that the UE only needs to monitor downlink control signaling such as paging-related control signaling. , during part of the time within the DRX cycle, and during the remainder of the time, this equipment may be at rest (for example, the receiver may be turned off).

At the physical layer, the paging message is carried on the Physical Downlink Shared Data Channel (PDSCH) and the PDSCH is scheduled on the Physical Downlink Control Channel (PDCCH). One PDCCH consists of one or multiple Control Channel Elements (CCEs), and one CCE consists of multiple (eg, six) Resource Element Groups (REGs). REG is defined in the Control Resource Set (CORESET). One CORESET includes one or multiple resource blocks (each resource block consists of 12 consecutive subcarriers in the frequency domain) in the frequency domain, and includes one or multiple (eg, one, two, or three) OFDM symbols in the time domain.

Not all UEs in a cell need to track paging. A UE in the RRC_CONNECTED state determines whether to monitor paging messages by whether the pagingSearchSpace parameter (also referred to as paging-SearchSpace ) has been configured (eg, configured via dedicated signaling). A UE in the RRC_IDLE or RRC_INACTIVE state shall monitor for paging messages whether or not the pagingSearchSpace parameter has been configured (eg, configured via System Information Block 1 ( SIB1 )) .

The UE monitors the PDCCH at certain network-configured time domain and frequency domain positions at which PDCCH transmissions can occur. These time domain and frequency domain positions may be associated with a specific CORESET and a time domain CORESET parameter. Such configuration information may be referred to as search space configuration information, and the paging search space may be referred to as a paging search space. FIG. 1 shows an example search space configuration in which all PDCCH tracking events in the search space are numbered chronologically in ascending order.

The UE, when receiving a paging message, needs to monitor only a portion of the PDCCH snooping events (called paging PDCCH snooping events) in the paging search space. The steps in which the UE determines the PDCCH snooping event for paging can be described as follows.

1. Defining the paging search space. If the pagingSearchSpace parameter has been configured (regardless of which search space the pagingSearchSpace parameter is configured for), then the search space specified by the pagingSearchSpace parameter is used as the paging search space; otherwise, the common type0-PDCCH search space (general type0-PDCCH search space is a search space used for tracking SIB1 scheduling information, and may also be referred to as search space 0 because its identifier is 0) is used as the paging search space.

2. Determining the binding mechanism, ie which mechanism is used to determine which PDCCH tracking events in the paging search space are PDCCH tracking events for paging. Existing 3GPP standards and specifications define two binding mechanisms: a standard binding mechanism and a non-standard binding mechanism. If the pagingSearchange parameter has been configured, use a non-standard linking mechanism; otherwise, the standard binding mechanism is used.

3. Definition of the paging frame (PF).

One or more PFs are defined in each DRX cycle. The UE is associated with one of the PFs according to the UE ID (eg, the UE identification defined according to the 5G-S-TMSI parameter, eg UE_ID=5G-S-TMSI mod 1024). For example, the UE calculates the frame number in the system (SFN) where its associated PF is located using the following formula:

( SFN+PF_offset ) mod T = ( T div N ) * ( UE_ID mod N ),

Where

The SFN is the frame number in the system where the PF to be calculated is located.

PF_offset is the offset value used to calculate PF.

T is a DRX cycle. For example, the DRX standard cycle can be configured using the defaultPagingCycle parameter in the paging control channel configuration information (eg, the configuration information specified by the pcch-Config parameter).

N is the number of PFs in a DRX cycle. N and PF_offset may be configured via the nAndPagingFrameOffset parameter in the paging control channel configuration information.

4. Definition of paging event (PO).

Each PF corresponds to one or more POs, and each PO corresponds to a group of PDCCH tracking events for paging. For example, the number of paging PDCCH tracking events corresponding to each PO is equal to the number of PDCCH tracking events required to perform a sweep of the beam once.

The number (N) of POs corresponding to each PF may be configured by the ns parameter in the paging control channel configuration information. The UE is associated with one of the POs according to the UE ID. For example, the UE calculates the index of its associated PO using the following formula:

i_s =floor ( UE_ID/N ) mod Ns .

5. Determining the appropriate PDCCH snooping event for paging at the associated PO according to the reference beam (eg, sync/physical broadcast channel (SSB) block index; in general, different SSBs use different transmission beams) and/or other parameters.

In the existing 3GPP standards and specifications, the paging control channel configuration information is defined as follows:

in the case of the standard linking mechanism in stage 4 and stage 5, in which the UE determines the PDCCH tracking event for paging,

the value of Ns can only be 1 or 2. If Ns =1, then there is only one PO for a given PF, and that PO starts from the SFN in which the PF resides. If Ns =2, then there are two POs for a given PF; The PO corresponding to i_s =0 is in the first half of the SFN where the PF is, and the PO corresponding to i_s =1 is in the second half of the SFN where the PF is.

The UE determines the PDCCH tracking events according to the relationship for matching the SSB index to the PDCCH tracking event in the common type0-PDCCH search space, and uses these PDCCH tracking events as PDCCH tracking events for paging.

FIG. 2 shows an example of a standard binding mechanism. It is assumed that Ns =1 and the base station transmits only SSB1 and SSB9 (i.e., one sweep only includes two beams), then the UE detects either SSB1 or SSB9 and calculates the position of the PDCCH tracking event for paging according to the index of the detected SSB and a relationship to map the SSB index to the PDCCH tracking event in the common type0-PDCCH search space. It can be seen that during the calculation, the UE requests only the index of the SSB thus used, and does not care how many SSBs and/or which SSBs are actually transmitted by the base station.

In the case of a non-standard linking mechanism in stage 4 and stage 5, in which the UE determines the PDCCH tracking event for paging,

starting from the first PDCCH snooping event in the SFN in which the PF resides, all of the "valid PDCCH snooping events" (e.g. PDCCH snooping events not overlapping the uplink symbol) in the paging search space can be used as paging PDCCH snooping events (numbered starting from 0 in chronological order).

The first PO (namely the PO corresponding to i_s =0) starts with the SFN where the PF is located.

If the firstPDCCH-MonitoringOccasionOfPO parameter has been configured, then the paging PDCCH monitoring events corresponding to the ( i_S+1 )th PO are S consecutive paging PDCCH monitoring events starting from the PDCCH monitoring event indicated by the ( i_S+1 )th value the firstPDCCH-MonitoringOccasionOfPO parameter, where S is the number of SSBs actually transmitted and, for example, S may be determined via the ssb-PositionsInBurst parameter in SIB1 .

If the firstPDCCH-MonitoringOccationOfPO parameter is not configured, then the paging PDCCH monitoring events corresponding to the ( i_s+1 )th PO are S consecutive paging PDCCH monitoring events, starting with the paging PDCCH monitoring event numbered ( i_S * S ), where S is the number of SSBs actually transmitted and, for example, S may be determined by the ssb-PositionsInBurst parameter in SIB1 .

FIG. 3 shows an example of a non-standard binding mechanism. It is assumed that PDCCH snooping events 0 and 1 are "valid PDCCH snooping events", i.e., can be used as PDCCH snooping events for paging; the firstPDCCH-MonitoringOfPO parameter is not configured; Ns =1 and the base station transmits only SSB1 and SSB9 (i.e. S =2), then for a given PF, the paging PDCCH snooping events corresponding to the corresponding PO are two consecutive PDCCH snooping events starting with PDCCH snooping event number 0.

In addition, in existing 3GPP standards and specifications, a network may allocate one or more "parts of bandwidth" (BWP) to each UE. Each BWP includes one or more consecutive resource blocks (RBs). The uplink and downlink BWPs used by the UE during initial access are respectively referred to as the initial active uplink BWP and the initial active downlink BWP, with the uplink and downlink BWPs used by the UE during non-initial access ( ie, in cases other than the initial access) are respectively referred to as the active uplink BWP and the active downlink BWP. One paging search space can be configured per BWP via the pagingSearchSpace parameter.

In the existing 3GPP standards and specifications, the paging related mechanism has the following problems.

1. If the pagingSearchSpace parameter in SIB1 is not configured, the UE in the RRC_IDLE or RRC_INACTIVE state determines the PDCCH snooping event for paging according to the standard binding mechanism. On the other hand, if the base station expects the UE in the RRC_CONNECTED state to also monitor paging in the same paging search space, the base station should configure the pagingSearchSpace parameter of the UE to 0; however, in this case, the UE in the RRC_CONNECTED state is forced to use a non-standard binding mechanism to determine the PDCCH tracking event for paging. However, the common type0-PDCCH search space cannot simultaneously provide an active standard binding mechanism and an active non-standard binding mechanism. For example, as shown in FIG. 2 (standard association mechanism), the UE assumes that the PDCCH snooping event 1 uses beam 0 to perform the transmission; however, as shown in FIG. 3 (non-standard bonding mechanism), the UE assumes that PDCCH tracking event 1 uses beam 1 to perform transmission. However, a base station using analog beamforming cannot simultaneously use different beams to perform transmission at the same time (for example, on one or more characters).

2. Ns (parameter used to configure the number of POs corresponding to each PF) is a cell level parameter and applies to both the standard bonding mechanism and the non-standard bonding mechanism, and only Ns =1 or Ns can be configured in the standard bonding mechanism. =2, and Ns =1 or Ns =2 or Ns =4 can be configured in a non-standard binding mechanism. These problems are as follows:

If some UEs in the cell use a standard association mechanism (eg, a UE in the RRC_IDLE or RRC_CONNECTED state) and other UEs use a non-standard association mechanism (eg, if the UE's active downlink BWP and the CORESET associated with the type0-PDCCH common search space does not overlap in the frequency domain), then a UE using a non-standard linking mechanism cannot use Ns =4.

For the standard binding mechanism, Ns =2 can only be configured in "SSB and CORESET multiplexing state 2 or 3" and only when the SSB transmission period is 5 ms. In all other cases, only Ns =1 can be configured. In other words, although Ns is a configurable parameter, its value is almost entirely dependent on other parameters, and this value defines a limit for both the standard binding mechanism and the custom binding mechanism, resulting in the configuration of Ns of the custom binding mechanism being extremely inflexible.

3. In time division duplexing (TDD), the firstPDCCH-MonitoringOccasionOfPO parameter is used to indicate the first PDCCH monitoring event of each PO. The problem is that the cycles in which the downlink slots (and/or symbols) configured in the cell occur and the cycles in which POs occur (e.g., the first PO corresponding to the first PF in each DRX cycle) may not have an integer multiple of the relationship between them (i.e., the first is not an integer multiple of the last, and the last is not an integer multiple of the first). Thus, the following cases may occur: for a given number of POs (eg, the first PO corresponding to a PF), in some DRX cycles, the PDCCH monitoring event specified for the PO by the firstPDCCH-MonitoringOccasionOfPO parameter is a "valid PDCCH monitoring event"; however, in other DRX cycles, the PDCCH monitoring event specified for the PO through the firstPDCCH-MonitoringOccasionOfPO parameter is not a "valid PDCCH monitoring event" (and cannot be used as a PDCCH monitoring event for paging).

Therefore, there is a need to improve the paging mechanism in the existing 3GPP standards and specifications. For example, the definitions of the standard association mechanism and the non-standard association mechanism need to be improved so that a UE in the RRC_CONNECTED state can determine the PDCCH snooping event for paging according to the standard association mechanism. In another example, the definition of Ns and/or the configuration mechanism for Ns are improved to allow flexible configuration of Ns in a non-standard binding mechanism. In yet another example, the mechanism of the firstPDCCH-MonitoringOccasionOfPO parameter indicating the first PDCCH PO monitoring event is improved to ensure that all specified PDCCH monitoring events for a paging are "valid PDCCH monitoring events".

Prior Art Document

non-patent document

Non-Patent Document 1: RP-160671, New SID Proposal: Study on New Radio Access Technology

Non-Patent Document 2: RP-170855 New WID of New Radio Access Technology

Statement of the Invention

In order to solve at least part of the above problems, the present invention proposes a method performed by a user equipment and a user equipment capable of ensuring that a UE in the RRC_CONNECTED state can determine a PDCCH snooping event for paging in accordance with a standard association mechanism, by improving the definitions a standard binding mechanism and a non-standard binding mechanism and/or configuration of paging-related parameters, or provide flexible configuration of Ns in a non-standard binding mechanism by improving the Ns definition and/or configuration mechanism for Ns, or ensure that all TDD-specified PDCCH tracking events for paging were "valid PDCCH snooping events" by improving the definition of the non-standard binding mechanism.

In accordance with the present invention, there is provided a method performed by a user equipment, which includes: receiving paging-related parameters from a base station, the paging-related parameters including information associated with a paging search space configuration parameter; and determining, according to the information associated with the paging search space configuration parameter, a binding mechanism for matching a Physical Downlink Control Channel (PDCCH) tracking event in the paging search space to a PDCCH tracking event for the paging, wherein if the information associated with the paging search space configuration parameter paging search space, indicates that the paging search space configuration parameter has been configured, and the search space indicated by the paging search space configuration parameter is not the common type0-PDCCH search space, use a non-standard binding mechanism; if the information associated with the paging search space configuration parameter indicates that the paging search space configuration parameter is not configured, or the information associated with the paging search space configuration parameter indicates that the paging search space configuration parameter has been configured and the space The search space specified by the paging search space configuration parameter is the common type0-PDCCH search space using the standard binding mechanism.

Preferably, the paging search space used in the standard association mechanism is the common type0-PDCCH search space, and the paging search space used in the non-standard association mechanism is the paging search space configured according to the paging search space configuration parameter.

Preferably, when in an idle radio resource control state, namely the RRC_IDLE state, or an inactive radio resource control state, namely the RRC_INACTIVE state, the user equipment obtains information associated with the paging search space configuration parameter via system information block 1, namely SIB1.

Preferably, when in the RRC_CONNECTED connected state, the user equipment obtains information related to the paging search space configuration parameter via system information block 1, namely SIB1, or dedicated signaling.

Further, according to the present invention, there is provided a method performed by a user equipment, which includes: receiving paging-related parameters and/or system access-related parameters from a base station, wherein the paging-related parameters include configuration parameter-related information. paging search spaces; determining, according to the information associated with the paging search space configuration parameter, a binding mechanism for matching a physical downlink control channel (PDCCH) tracking event in the paging search space to a PDCCH tracking event for paging; and determining, in accordance with the determined binding mechanism, paging-related parameters, and/or system access-related parameters, the number of paging events corresponding to each paging frame.

Preferably, the system access-related parameters include the Synchronization Signal Block/Physical Broadcast Channel (SSB) and Control Resource Set (CORESET) multiplexing state and the SSB period. The paging-related parameters further include paging control channel configuration information. If the determined association mechanism is a non-standard association mechanism, the user equipment determines, according to the first parameter included in the paging control channel configuration information, the number of paging events corresponding to each paging frame; if the determined association mechanism is the standard association mechanism, the user equipment determines, according to the SSB and CORESET multiplexing state and the SSB period, the number of paging events corresponding to each paging frame, determines according to a second parameter different from the first parameter and included in the configuration information of the paging control channel, the number of paging events corresponding to each paging frame, or determines, according to a predetermined value, the number of paging events corresponding to each paging frame.

Preferably, when in an idle radio resource control state, namely the RRC_IDLE state, or an inactive radio resource control state, namely the RRC_INACTIVE state, the user equipment obtains information associated with the paging search space configuration parameter via system information block 1, namely SIB1.

Preferably, when in the RRC_CONNECTED connected state, the user equipment obtains information related to the paging search space configuration parameter via system information block 1, namely SIB1, or dedicated signaling.

Further, according to the present invention, there is provided a method performed by a user equipment, including: receiving, from a base station, configuration information of a paging-related parameter, such as configuration information of a paging control channel; and determining a paging parameter to use, such as the number of POs corresponding to each PF, according to the received paging parameter configuration information.

In addition, according to the present invention, there is provided a method performed by a user equipment, including: receiving paging-related parameters from a base station, the paging-related parameters including information associated with a paging search space configuration parameter; determining, according to the information associated with the paging search space configuration parameter, a binding mechanism for matching a physical downlink control channel (PDCCH) tracking event in the paging search space to a PDCCH tracking event for paging; and determining, according to the determined binding mechanism and paging-related parameters, POs corresponding to each PF and a PDCCH tracking event for paging each PO.

In addition, in accordance with the present invention, there is provided a user equipment comprising: a processor and a memory device that contains instructions stored therein, the instructions, when executed by the processor, perform the method described above.

Invention Effect

In accordance with the present invention, the definitions of the standard association mechanism and the non-standard association mechanism and/or the configuration of the paging-related parameters are improved to allow a UE in the RRC_CONNECTED state to determine a PDCCH snooping event for paging according to the standard association mechanism, or the definition and/or mechanism the configurations for the Ns are improved to allow flexible configuration for the Ns in the non-standard binding mechanism, or the definition of the non-standard binding mechanism is improved to ensure that all TDD-specified PDCCH snooping events for paging are "valid PDCCH snooping events".

Brief description of graphic materials

The above and other features of the present invention will be more clearly defined in the following detailed description in conjunction with the accompanying drawings.

FIG. 1 is a diagram of an example search space configuration according to existing 3GPP standards and specifications;

in FIG. 2 is a diagram of an example of a standard association mechanism used by a UE;

in FIG. 3 is a diagram of an example of a non-standard binding mechanism used by a UE;

in FIG. 4 is a flowchart of a method performed by a user equipment according to Embodiment 1 of the present invention;

in FIG. 5 is a flowchart of a method performed by a user equipment according to Embodiment 2 of the present invention;

in FIG. 6 is a flowchart of a method performed by a user equipment according to Embodiment 3 of the present invention;

in FIG. 7 is a flow chart of a method performed by a user equipment according to Embodiment 4 of the present invention; And

in FIG. 8 shows a block diagram of a user equipment (UE) included in the present invention.

Detailed description

The following is a detailed description of the present invention with reference to the accompanying drawings and specific embodiments. It should be noted that the present invention is not limited to the specific embodiments described below. In addition, for the sake of simplicity, a detailed description of prior art not directly related to the present invention is omitted in order to avoid confusion regarding the understanding of the present invention.

In the following description, the 5G mobile communication system and its subsequently improved versions are used as examples of application conditions to detail a plurality of embodiments in accordance with the present invention. However, it should be noted that the present invention is not limited to the following embodiments, and, moreover, it is applicable to many other wireless communication systems such as a communication system later than 5G and a 4G mobile communication system earlier than 5G.

Some of the terms used in the present invention are described below. Unless otherwise indicated, the terms used in the present invention are defined as indicated below in this document. The terms used in the present invention may be referred to differently in LTE, LTE-Advanced, LTE-Advanced Pro, NR and later communication systems, but a unified terminology is adopted in the present invention. In the case of application in a particular system, the terms can be replaced by the terms adopted in the corresponding system.

3GPP: 3rd Generation Partnership Project

BWP: part of the strip width

CCE: Control Channel Element

CORESET: a set of management resources

DRX: intermittent reception

eMBB: Enhanced Mobile Broadband

IE: information element

LTE-A: an advanced standard for the long-term evolution of communication networks

MAC: Media Access Control

MAC CE: MAC control element

mMTC: Mass Machine-to-Machine Communication

NR: new radio network

OFDM: Orthogonal Frequency Division Multiplexing

PBCH: Physical Broadcast Channel

PCCH: Paging Control Channel

PDCCH: Physical Downlink Control Channel

PDSCH: Physical Shared Channel for Downlink Data

PF: paging frame

PO: paging event

REG: resource element group

RRC: radio resource control

SFN: frame number in the system

SSB: SS/PBCH block

UE: user equipment

URLLC: Ultra Reliable Low Latency Communication

[Embodiment 1]

FIG. 4 is a flowchart of a method performed by a user equipment according to Embodiment 1 of the present invention.

In Embodiment 1 of the present invention, the steps performed by the user equipment (UE) include:

obtaining the paging-related parameters in step 401. The paging-related parameters include, for example, information associated with the paging search space configuration parameter (e.g., whether the paging search space and/or the paging search space identifier has been configured, etc.) . The paging search space may be configured via the pagingSearchSpace parameter and may also be configured via other parameters.

The determination of the association mechanism to be used according to the above obtained paging-related parameters is carried out at step 403. For example, the association mechanism to be used is determined according to the information associated with the paging search space configuration parameter. For example, if the pagingSearchSpace parameter has been configured and the search space specified by the pagingSearchSpace parameter is not the base search space, a non-standard linking mechanism is used; otherwise, the standard binding mechanism is used. Herein, the base search space may be a common type0-PDCCH search space (also referred to as search space 0 or search space for SIB1 ) or another predefined search space.

In Embodiment 1 of the present invention, if the UE is in the RRC_IDLE or RRC_INACTIVE state, then the UE optionally obtains the configuration information of the paging-related parameter via system information such as SIB1 .

In Embodiment 1 of the present invention, if the UE is in the RRC_CONNECTED state, then the UE optionally obtains paging-related parameter configuration information through one or more of the following mechanisms:

System information such as SIB1 .

Dedicated alarm.

For example, if for a UE in the RRC_CONNECTED state, the base station does not configure the pagingSearchSpace parameter for the UE via dedicated signaling, then the UE considers that the pagingSearchSpace parameter is not configured.

In another example, in which the UE is in the RRC_CONNECTED state, if the pagingSearchSpace parameter is not configured in system information such as SIB1 and the base station does not configure the pagingSearchSpace parameter for the UE through dedicated signaling, the UE considers that the pagingSearchSpace parameter is not configured.

In another example, in which the UE is in the RRC_CONNECTED state, if the pagingSearchSpace parameter is not configured in system information such as SIB1, the UE considers that the pagingSearchSpace parameter is not configured.

In another example, in which the UE is in the RRC_CONNECTED state, if the pagingSearchSpace parameter is configured in system information such as SIB1, the UE considers that the pagingSearchSpace parameter has been configured.

In another example, in which the UE is in the RRC_CONNECTED state, if the pagingSearchSpace parameter is configured in system information such as SIB1 or the base station configures the pagingSearchSpace parameter for the UE through dedicated signaling, the UE considers that the pagingSearchSpace parameter has been configured.

In another example, in which the UE is in the RRC_CONNECTED state, if the base station configures the pagingSearchSpace parameter for the UE via dedicated signaling, the UE considers that the pagingSearchSpace parameter has been configured.

Optionally, in Embodiment 1 of the present invention, if the UE is in the RRC_CONNECTED state, then in relation to the paging-related parameter configuration information (e.g., whether a particular parameter was configured and/or what value was assigned to the parameter when configured, etc.) an indication in dedicated signaling may replace an indication in system information such as SIB1 .

In Embodiment 1 of the present invention, the linking mechanism may optionally refer to a mechanism to determine the PDCCH snoop event for paging, such as which search space will be used as the paging search space, and in another example, which mechanism should be used to determine which which PDCCH snooping events in the paging search space are paging PDCCH snooping events. The paging search space definition mechanism may be as follows: for the standard binding mechanism, the common type0-PDCCH search space is always used as the paging search space; for a custom linking mechanism, the paging search space is the search space specified by the pagingSearchSpace parameter. In addition, for the standard binding mechanism, the mechanism for determining the PDCCH tracking event for paging can be as follows: the PDCCH tracking event is determined according to the relationship for matching the SSB index to the PDCCH tracking event in the common type0-PDCCH search space, and as the PDCCH tracking event for paging, a specific PDCCH tracking event.

[Embodiment 2]

FIG. 5 is a flowchart of a method performed by a user equipment according to Embodiment 2 of the present invention.

In Embodiment 2 of the present invention, the steps performed by the user equipment (UE) include:

obtaining paging-related parameters and/or system access-related parameters in step 501. The paging-related parameters include, for example, information associated with a paging search space configuration parameter (e.g., whether a paging search space and/or an identifier has been configured). paging search space, etc.). The paging search space may be configured via the pagingSearchSpace parameter and may also be configured via other parameters.

System access-related options include the following options:

SSB and CORESET multiplexing state, as configured by, for example, the pdcch-ConfigSIB1 option.

The SSB period configured by, for example, the ssb-periodicityServingCell parameter.

In addition, the paging-related parameters further include the following parameters:

The number of 1 POs configured by, for example, the parameter ns in the configuration information of the paging control channel.

The PO number 2 configured by, for example, another parameter other than ns in the paging control channel configuration information (eg, a newly added parameter ns2 in the paging control channel configuration information).

The determination of the binding mechanism to be used according to the above obtained paging-related parameters is carried out at step 503. For example, the binding mechanism to be used is determined according to the information associated with the paging search space configuration parameter. Herein, the binding mechanism determination method described in the Background of the Invention section can be used, and the binding mechanism determination method described in Embodiment 1 above can also be used. Of course, the present invention is not limited to this, and other methods of determining the binding mechanism can also be used.

Determination of paging-related parameters and/or system access-related parameters, the number of POs corresponding to each PF, in accordance with the determined binding mechanism, is performed at step 505.

For example, if a standard binding mechanism is defined to be used, the number of POs corresponding to each PF may be determined according to the SSB multiplexing state and CORESET and the SSB period. For example, if the multiplexing state of SSB and CORESET is 3 and the period of SSB is 5 ms, then the number of POs corresponding to each PF is 2; otherwise, the number of POs corresponding to each PF is 1.

In another example, if a standard binding mechanism is defined to be used, the number of POs corresponding to each PF may be determined according to the number of 2 POs.

In another example, if a standard binding mechanism is defined to be used, the number of POs corresponding to each PF may be a predefined value, such as a positive integer equal to 1.

In another example, if a non-standard binding mechanism is defined to be used, the number of POs corresponding to each PF may be determined according to the number of 1 POs.

In Embodiment 2 of the present invention, if the UE is in the RRC_IDLE or RRC_INACTIVE state, then the UE optionally obtains configuration information of one or more paging-related parameters via system information such as SIB1 .

In Embodiment 2 of the present invention, if the UE is in the RRC_CONNECTED state, then the UE optionally obtains configuration information for one or more paging-related parameters through one or more of the following mechanisms:

System information such as SIB1 .

Dedicated alarm.

For example, if for a UE in the RRC_CONNECTED state, the base station does not configure the pagingSearchSpace parameter for the UE via dedicated signaling, then the UE considers that the pagingSearchSpace parameter is not configured.

In another example, in which the UE is in the RRC_CONNECTED state, if the pagingSearchSpace parameter is not configured in system information such as SIB1 and the base station does not configure the pagingSearchSpace parameter for the UE through dedicated signaling, the UE considers the pagingSearchSpace parameter is not configured.

In another example, in which the UE is in the RRC_CONNECTED state, if the pagingSearchSpace parameter is not configured in system information such as SIB1 , the UE considers that the pagingSearchSpace parameter is not configured.

In another example, in which the UE is in the RRC_CONNECTED state, if the pagingSearchSpace parameter is configured in system information such as SIB1 , the UE considers that the pagingSearchSpace parameter has been configured.

In another example, in which the UE is in the RRC_CONNECTED state, if the pagingSearchSpace parameter is configured in system information such as SIB1 or the base station configures the pagingSearchSpace parameter for the UE through dedicated signaling, the UE considers that the pagingSearchSpace parameter has been configured.

In another example, in which the UE is in the RRC_CONNECTED state, if the base station configures the pagingSearchSpace parameter for the UE via dedicated signaling, the UE considers that the pagingSearchSpace parameter has been configured.

Optionally, in Embodiment 2 of the present invention, if the UE is in the RRC_CONNECTED state, then in relation to the configuration information of one or more paging-related parameters (e.g., whether a particular parameter was configured, and/or what value was assigned to the parameter during configuration, etc.) n.) an indication in dedicated signaling may replace an indication in system information such as SIB1 .

In Embodiment 2 of the present invention, the linking mechanism may optionally refer to a mechanism for determining the PDCCH snoop event for paging, such as which search space will be used as the paging search space, and in another example, which mechanism should be used to determine which which PDCCH snooping events in the paging search space are paging PDCCH snooping events. The paging search space definition mechanism may be as follows: for the standard binding mechanism, the common type0-PDCCH search space is always used as the paging search space; for a custom linking mechanism, the paging search space is the search space specified by the pagingSearchSpace parameter. In addition, for the standard binding mechanism, the mechanism for determining the PDCCH tracking event for paging can be as follows: the PDCCH tracking event is determined according to the relationship for matching the SSB index to the PDCCH tracking event in the common type0-PDCCH search space, and as the PDCCH tracking event for paging, a specific PDCCH tracking event.

[Embodiment 3]

FIG. 6 is a flowchart of a method performed by a user equipment according to Embodiment 3 of the present invention.

In Embodiment 3 of the present invention, the steps performed by the user equipment (UE) include:

obtaining paging-related parameter configuration information, such as paging control channel configuration information, in step 601. The paging control channel configuration information may include one or more of the following configuration elements:

A standard DRX cycle, configured through, for example, the defaultPagingCycle parameter.

The number ( N ) of PF in the DRX cycle and the offset value ( PF_offset ) used to calculate the PF, such as N and PF_offset , configured via the nAndPagingFrameOffset parameter.

The number ( N ) of POs corresponding to each PF , configured by, for example, the ns parameter.

The first PDCCH monitoring event of each PO, configured by, for example, the firstPDCCH-MonitoringOccasionOfPO parameter.

For example, the paging control channel configuration information in SIB1 is obtained.

In another example, the paging control channel configuration information of the initial active downlink BWP is obtained.

In another example, the configuration information of the paging control channel in SIB1 is obtained, and the configuration information of the paging control channel of the initial active downlink BWP is also obtained.

In another example, downlink active BWP paging control channel configuration information is obtained.

In another example, the configuration information of the paging control channel in SIB1 is obtained, and the configuration information of the paging control channel of the downlink active BWP is also obtained.

The determination of the paging parameter to be used in accordance with the received paging parameter configuration information is carried out in step 603.

For example, if only the paging control channel configuration information in SIB1 is received, then the paging control channel configuration information in SIB1 is used as the paging parameter for all parts of the downlink BWP (including the initial active downlink BWP and the active downlink BWP) .

In another example, if only the initial downlink active BWP paging control channel configuration information is received, the initial downlink active BWP paging control channel configuration information is used as the initial downlink active BWP paging parameter.

In another example, if only downlink active BWP paging control channel configuration information is received, then the downlink active BWP paging control channel configuration information is used as the downlink active BWP paging parameter.

In another example, if the paging control channel configuration information in SIB1 is received and the paging control channel configuration information of the initial downlink active BWP is also received, and if the paging control channel configuration information in SIB1 and the paging control channel configuration information of the initial downlink active BWP links include the same configuration parameter (e.g., the number of POs corresponding to each PF configured by, for example, parameter ns), then the configuration parameter included in the configuration information of the paging control channel of the initial active downlink BWP is applied as the paging parameter of the initial active downlink BWP.

In another example, if the paging control channel configuration information in SIB1 is received and the paging control channel configuration information of the downlink active BWP is also received, and if the paging control channel configuration information in SIB1 and the paging control channel configuration information of the downlink active BWP include the same configuration parameter (for example, the number of POs corresponding to each PF configured by, for example, parameter ns), then the configuration parameter included in the configuration information of the paging control channel of the downlink active BWP is used as the parameter paging the active downlink BWP.

In Embodiment 3 of the present invention, the UE is optionally a UE in the RRC_CONNECTED state.

[Embodiment 4]

FIG. 7 is a flowchart of a method performed by a user equipment according to Embodiment 4 of the present invention.

In Embodiment 4 of the present invention, the steps performed by the user equipment (UE) include:

obtaining the paging-related parameters in step 701. The paging-related parameters include, for example, information associated with the paging search space configuration parameter (e.g., whether the paging search space and/or the paging search space identifier has been configured, etc.) . The paging search space may be configured via the pagingSearchSpace parameter and may also be configured via other parameters.

The determination of the association mechanism to be used in accordance with the above obtained paging-related parameters is carried out at step 703. For example, the association mechanism to be used is determined in accordance with the information associated with the paging search space configuration parameter. Herein, the binding mechanism determination method described in the Background of the Invention section can be used, and the binding mechanism determination method described in Embodiment 1 above can also be used. Of course, the present invention is not limited to this, and other methods of determining the binding mechanism can also be used.

The determination of the POs corresponding to each PF and the PDCCH tracking events for paging each PO according to the determined binding mechanism and paging-related parameters is performed in step 705.

For example, if a non-standard binding mechanism is defined to use,

starting from the first PDCCH snooping event in the SFN in which the PF resides, all of the "valid PDCCH snooping events" (e.g. PDCCH snooping events not overlapping the uplink symbol) in the paging search space can be used as paging PDCCH snooping events (numbered starting from 0 in chronological order).

the first PO (namely, the PO corresponding to i_s =0) starts with the SFN in which the PF resides.

if the firstPDCCH-MonitoringOccasionOfPO parameter has been configured, then the paging PDCCH monitoring events corresponding to the ( i_s+ 1)th PO are S consecutive paging PDCCH monitoring events starting from the first paging PDCCH monitoring event counted from the PDCCH monitoring event specified ( i_s+ 1)-th value of the firstPDCCH-MonitoringOccasionOfPO parameter (including the PDCCH tracking event indicated by ( i_s+ 1)-th value of the firstPDCCH-MonitoringOccasionOfPO parameter). For example, if S =2 and the PDCCH monitoring event indicated by the first value of the firstPDCCH-MonitoringOccationOfPO parameter is a paging PDCCH monitoring event 6, then the first PO corresponds to a paging PDCCH monitoring event 6 and a paging PDCCH monitoring event 7. In another example, if S =2 and the PDCCH monitoring event indicated by the first value of the firstPDCCH-MonitoringOccationOfPO parameter is not a "valid PDCCH monitoring event" and if the number of the first PDCCH monitoring event for the paging, counted from the PDCCH monitoring event indicated by the first value of the firstPDCCH parameter -MonitoringOccationOfPO is 2, then the first PO corresponds to PDCCH monitoring event 2 for paging and PDCCH monitoring event 3 for paging.

If the firstPDCCH-MonitoringOccasionOfPO parameter is not configured, then the paging PDCCH monitoring events corresponding to the ( i_s + 1)th PO are S consecutive paging PDCCH monitoring events starting with the paging PDCCH monitoring event numbered ( i_S * S ),

where S is the number of SSBs actually transmitted and, for example, S may be determined by the ssb-PositionsInBurst parameter in SIB1 .

In Embodiment 4 of the present invention, if the UE is in the RRC_IDLE or RRC_INACTIVE state, then the UE optionally obtains configuration information of one or more paging-related parameters via system information such as SIB1 .

In Embodiment 4 of the present invention, if the UE is in the RRC_CONNECTED state, then the UE optionally obtains configuration information for one or more paging-related parameters through one or more of the following mechanisms:

System information such as SIB1 .

Dedicated alarm.

For example, if for a UE in the RRC_CONNECTED state, the base station does not configure the pagingSearchSpace parameter for the UE via dedicated signaling, then the UE considers that the pagingSearchSpace parameter is not configured.

In another example, in which the UE is in the RRC_CONNECTED state, if the pagingSearchSpace parameter is not configured in system information such as SIB1 and the base station does not configure the pagingSearchSpace parameter for the UE through dedicated signaling, the UE considers the pagingSearchSpace parameter is not configured.

In another example, in which the UE is in the RRC_CONNECTED state, if the pagingSearchSpace parameter is not configured in system information such as SIB1 , the UE considers that the pagingSearchSpace parameter is not configured.

In another example, in which the UE is in the RRC_CONNECTED state, if the pagingSearchSpace parameter is configured in system information such as SIB1 , the UE considers that the pagingSearchSpace parameter has been configured.

In another example, in which the UE is in the RRC_CONNECTED state, if the pagingSearchSpace parameter is configured in system information such as SIB1 or the base station configures the pagingSearchSpace parameter for the UE through dedicated signaling, the UE considers that the pagingSearchSpace parameter has been configured.

In another example, in which the UE is in the RRC_CONNECTED state, if the base station configures the pagingSearchSpace parameter for the UE via dedicated signaling, the UE considers that the pagingSearchSpace parameter has been configured.

Optionally, in Embodiment 4 of the present invention, if the UE is in the RRC_CONNECTED state, then in relation to the configuration information of one or more paging-related parameters (e.g., whether a particular parameter was configured, and/or what value was assigned to the parameter during configuration, etc.) n.) an indication in dedicated signaling may replace an indication in system information such as SIB1 .

In Embodiment 4 of the present invention, the association mechanism may optionally refer to a mechanism for determining a PDCCH snoop event for a paging, such as which search space will be used as the paging search space, and in another example, which mechanism should be used to determine which which PDCCH snooping events in the paging search space are paging PDCCH snooping events. The paging search space definition mechanism may be as follows: for the standard binding mechanism, the common type0-PDCCH search space is always used as the paging search space; for a custom linking mechanism, the paging search space is the search space specified by the pagingSearchSpace parameter. In addition, for the standard binding mechanism, the mechanism for determining the PDCCH tracking event for paging can be as follows: the PDCCH tracking event is determined according to the relationship for matching the SSB index to the PDCCH tracking event in the common type0-PDCCH search space, and as the PDCCH tracking event for paging, a specific PDCCH tracking event.

The above examples and embodiments can be combined with each other provided there is no incompatibility. For example, Embodiment 1 and Embodiment 2 can be used together in combination. In this case, the UE determines the binding mechanism to be used according to the steps of Embodiment 1, and determines the number of POs corresponding to each PF according to the steps of Embodiment 2.

FIG. 8 shows a block diagram of a user equipment (UE) included in the present invention. As shown in FIG. 8, user equipment (UE) 80 includes a processor 801 and a storage device 802. The processor 801 may include, for example, a microprocessor, a microcontroller, an embedded processor, etc. The storage device 802 may include, for example, volatile storage device (such as random access memory (RAM)), hard disk drive (HDD), non-volatile storage device (such as flash memory), or other storage devices. The software instructions are stored in the memory 802. The instructions, when executed by the processor 801, may implement the aforementioned method executed by the user equipment as detailed in the present invention.

Methods and related devices in accordance with the present invention are described above in conjunction with the preferred embodiments. Those skilled in the art should understand that the above methods are by way of example only and the above described embodiments can be combined with each other provided there is no incompatibility. The method of the present invention is not limited to the steps or sequences illustrated above. The network node and user equipment shown above may contain additional modules, for example, may further contain modules that may be developed or will be developed in the future for use in a base station, MME or UE. The various identifiers shown above are by way of example only and are not restrictive. The present invention is not limited to certain information items that are used as examples of these identifiers. Those skilled in the art may make various changes and modifications in accordance with the teachings of the illustrated embodiments.

It should be understood that the above-described embodiments of the present invention may be implemented using software, hardware, or a combination of software and hardware. For example, the various components of the base station and user equipment in the above embodiments may be implemented by a variety of devices, including, without limitation: an analog circuit device, a digital circuit device, a digital signal processor (DSP) circuit, a programmable processor, application specific integrated circuit (ASIC), field programmable gate array (FPGA), complex programmable logic device (CPLD), etc.

In the present application, the term "base station" may mean a mobile communication data transmission and control switching center with a large transmitter power and a wide coverage area, which can perform the functions of scheduling resource allocation, receiving and transmitting data, etc. The term "user equipment" means a mobile user terminal such as a terminal device capable of wireless communication with a base station or micro base station, including a mobile phone, laptop, or the like.

Moreover, the embodiments of the present invention described herein may be implemented on a computer program product. More specifically, the computer program product is the following product: a product having a computer-readable medium encoded with its own computer program logic, when executed on the computing equipment, the computer program logic provides related operations for implementing the technical solution of the present invention. When executed on at least one processor of a computing system, computer program logic allows the processor to perform the operations (methods) described in the embodiments of the present invention. Such a configuration of the present invention is typically provided in the form of software, codes, and/or other data structures provided or encoded on a computer-readable medium, such as an optical medium (for example, compact disc read only memory (CD-ROM)), flexible disk or hard disk drive, etc., or other media such as firmware or microcode on one or more Read Only Memory (ROM), Random Access Memory (RAM), or Programmable Read Only Memory (PROM) chips, or as a downloadable software image, shared database, etc., in one or more modules. Software or firmware, or a similar configuration, may be installed on a computing device such that one or more processors in the computing device perform the technical solutions described in the embodiments of the present invention.

In addition, each functional unit or each function of the base station device and the terminal device used in each of the above embodiments may be implemented or performed by an electrical circuit, which is usually one or a plurality of integrated circuits. Circuitry capable of performing the various functions described herein may include general purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), or general purpose integrated circuits, field programmable gate arrays (FPGAs), or other programmable logic devices, discrete circuits or transistorized logic circuits, or discrete hardware components, or any combination of the foregoing. A general purpose processor may be a microprocessor, or the processor may be an existing processor, controller, microcontroller, or state machine. The aforementioned general purpose processor or each circuit may be implemented with a digital circuit or may be implemented with a logic circuit. In addition, when an advanced technology appears that can replace the current integrated circuits due to advances in semiconductor technology, the present invention can also use integrated circuits obtained using this advanced technology.

Although the present invention has already been illustrated above in conjunction with the preferred embodiments of the present invention, it should be understood by those skilled in the art that various modifications, substitutions and changes may be made to the present invention without departing from the spirit and scope of the present invention. Therefore, the present invention is not to be defined by the above-described embodiments, but by the appended claims or their equivalents.

Claims (14)

1. A method for determining the first PDCCH tracking event performed by a user equipment, comprising: receiving second downlink Active Bandwidth BWP (BWP) paging control channel configuration information that is a BWP different from the initial active downlink BWP used during initial access, in addition to receiving the first paging control channel configuration information in SIB1, each of the first paging control channel configuration information and the second paging control channel configuration information includes a corresponding firstPDCCH-MonitoringOccasionOfPO parameter for configuring the first physical downlink control channel (PDCCH) monitoring event of each paging frame event (PO) of the paging ( PF); And determining a first PDCCH monitoring event of each PF PO for the active downlink BWP based on the firstPDCCH-MonitoringOccasionOfPO parameter specific to the active downlink BWP. 2. User equipment configured to determine the first PDCCH snooping event, comprising: CPU; And a storage device that stores instructions; however, based on the instructions, the processor is configured to: receiving second downlink Active Bandwidth BWP (BWP) paging control channel configuration information that is a BWP different from the initial active downlink BWP used during initial access, in addition to receiving the first paging control channel configuration information in SIB1, each of the first paging control channel configuration information and the second paging control channel configuration information includes a corresponding firstPDCCH-MonitoringOccasionOfPO parameter for configuring the first physical downlink control channel (PDCCH) monitoring event of each paging frame event (PO) of the paging ( PF); And determining a first PDCCH monitoring event of each PF PO for the active downlink BWP based on the firstPDCCH-MonitoringOccasionOfPO parameter specific to the active downlink BWP. 3. Base station, containing: CPU; And a memory device in which commands are stored; wherein, based on the instructions, the processor is configured to transmit, to the user equipment, second downlink Active Bandwidth Part (BWP) Paging Control Channel Configuration information, which is a BWP different from the initial active downlink BWP used during initial access, in addition to receiving the first paging control channel configuration information in SIB1, each of the first paging control channel configuration information and the second paging control channel configuration information includes a corresponding firstPDCCH-MonitoringOccasionOfPO parameter to configure the first physical control channel monitoring event downlink (PDCCH) of each paging event (PO) of the paging frame (PF); And a firstPDCCH-MonitoringOccasionOfPO parameter specific to the active downlink BWP, causing the user equipment to determine the first PDCCH monitoring event of each PF PO for the active downlink BWP.

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