CN112911655B - Method for deactivating secondary cell, method and apparatus for indicating deactivation of secondary cell - Google Patents

Method for deactivating secondary cell, method and apparatus for indicating deactivation of secondary cell Download PDF

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Publication number
CN112911655B
CN112911655B CN201911136110.XA CN201911136110A CN112911655B CN 112911655 B CN112911655 B CN 112911655B CN 201911136110 A CN201911136110 A CN 201911136110A CN 112911655 B CN112911655 B CN 112911655B
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scell
terminal
indication information
pdcch
deactivation timer
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CN112911655A (en
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姜大洁
陈力
吴凯
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00837—Determination of triggering parameters for hand-off
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0248—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal dependent on the time of the day, e.g. according to expected transmission activity
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the application provides a method for deactivating a secondary cell, a method for indicating to deactivate the secondary cell and equipment, wherein the method comprises the following steps: if the terminal receives first indication information sent by the SpCell or the first SCell, starting or restarting a deactivation timer of the first SCell or suspending the deactivation timer of the first SCell; the first indication information indicates that the terminal is located in or enters a non-dormant state in the first SCell. In the embodiment of the application, the first SCell deactivation timer of the UE can be prevented from being overtime too early, which is beneficial to more timely data scheduling of the first SCell.

Description

Method for deactivating secondary cell, method and apparatus for indicating deactivation of secondary cell
Technical Field
The embodiment of the application relates to the technical field of communication, in particular to a method for deactivating a Secondary Cell (SCell), a method for indicating to deactivate the Secondary Cell and equipment.
Background
The timer-based SCell activation or deactivation, the current protocol specifies that if a terminal (e.g., user Equipment (UE)) sends a medium access control protocol data unit (Medium Access Control Protocol Data Unit, MAC PDU) of an uplink grant schedule or receives a MAC PDU of a downlink schedule, or a PDCCH on an activated SCell indicates uplink schedule or downlink schedule, or a PDCCH of a serving cell indicates uplink schedule or downlink schedule of a SCell that is activated by scheduling, a deactivation timer (sCellDeactivationTimer) of the SCell is started or restarted.
Since the trigger conditions considered when starting or restarting the SCell's deactivation timer are relatively limited, for example, it is possible that the subsequent network device has downlink data to transmit, and at this time the SCell deactivation timer of the terminal has timed out, this will seriously affect the timeliness of the SCell's data scheduling.
Disclosure of Invention
An object of the embodiments of the present application is to provide a method for deactivating a secondary cell, a method for indicating to deactivate a secondary cell, and a device for the same, which solve the problem that the timeliness of data scheduling of an SCell is affected due to limited trigger conditions considered when starting or restarting a deactivation timer of the SCell.
In a first aspect, an embodiment of the present application provides a method for deactivating a secondary cell, including:
if the terminal receives first indication information sent by a special cell SpCell or a first SCell, starting or restarting a deactivation timer of the first SCell or suspending the deactivation timer of the first SCell;
the first indication information indicates that the terminal is located in or enters a non-dormant state in the first SCell.
In a second aspect, an embodiment of the present application further provides a method for indicating deactivation of a secondary cell, including:
transmitting first indication information to a terminal through a SpCell or a first SCell, wherein the first indication information indicates that the terminal is located or enters a non-dormant state in the first SCell;
the first indication information is used for the terminal to start or restart the deactivation timer of the first SCell or suspend the deactivation timer of the first SCell.
In a third aspect, an embodiment of the present application further provides a terminal, including:
the processing module is used for starting or restarting a deactivation timer of the first SCell or suspending the deactivation timer of the first SCell if the terminal receives first indication information sent by the special cell SpCell or the first SCell;
the first indication information indicates that the terminal is located in or enters a non-dormant state in the first SCell.
In a fourth aspect, an embodiment of the present application further provides a network device, including:
a sending module, configured to send first indication information to a terminal through a SpCell or a first SCell, where the first indication information indicates that the terminal is located in or enters a non-dormant state at the first SCell;
the first indication information is used for the terminal to start or restart the deactivation timer of the first SCell or suspend the deactivation timer of the first SCell.
In a fifth aspect, an embodiment of the present application further provides a communication device, including: a processor, a memory and a program stored on the memory and executable on the processor, which when executed by the processor, performs the steps of the method of deactivating a secondary cell as described in the first aspect, or the steps of the method of instructing deactivation of a secondary cell as described in the second aspect.
In a sixth aspect, an embodiment of the present application further provides a computer readable storage medium, where a computer program is stored on the computer readable storage medium, where the computer program when executed by a processor implements the steps of the method for deactivating a secondary cell according to the first aspect, or the steps of the method for instructing deactivation of a secondary cell according to the second aspect.
In the embodiment of the application, the network side can instruct the terminal to enter the dormant state or the non-dormant state of the first SCell, so that the terminal can start or restart the deactivation timer of the first SCell according to the indication of the network side, or suspend the deactivation timer of the first SCell.
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 embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
fig. 1 is a schematic diagram of a wireless communication system according to an embodiment of the present application;
fig. 2 is a flowchart of a method of deactivating an SCell according to an embodiment of the application;
fig. 3 is a flow chart of a method of indicating deactivation of an SCell according to an embodiment of the application;
FIG. 4 is a schematic diagram of a terminal according to an embodiment of the present application;
FIG. 5 is a schematic diagram of a network device according to an embodiment of the present application;
FIG. 6 is a second schematic diagram of a terminal according to an embodiment of the present application;
fig. 7 is a second schematic diagram of a network device according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. Furthermore, the use of "and/or" in the specification and claims means at least one of the connected objects, e.g., a and/or B, meaning that it includes a single a, a single B, and that there are three cases of a and B.
In embodiments of the application, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment should not be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.
The techniques described herein are not limited to long term evolution (Long Time Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems and may also be used for various wireless communication systems such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (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 (Universal Terrestrial Radio Access, UTRA), and the like. UTRA includes wideband CDMA (Wideband Code Division Multiple Access, WCDMA) and other CDMA variants. TDMA systems may implement radio technologies such as the global system for mobile communications (Global System for Mobile Communication, GSM). OFDMA systems may implement radio technologies such as ultra mobile broadband (Ultra Mobile Broadband, UMB), evolved UTRA (E-UTRA), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, flash-OFDM, and the like. UTRA and E-UTRA are parts of the universal mobile telecommunications system (Universal Mobile Telecommunications System, UMTS). LTE and higher LTE (e.g., LTE-a) are new UMTS releases that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-a and GSM are described in the literature from an organization named "third generation partnership project" (3rd Generation Partnership Project,3GPP). CDMA2000 and UMB are described in the literature from an organization named "third generation partnership project 2" (3 GPP 2). The techniques described herein may be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies.
Embodiments of the present application are described below with reference to the accompanying drawings. The method for deactivating the auxiliary cell, the method for indicating to deactivate the auxiliary cell and the equipment provided by the embodiment of the application can be applied to a wireless communication system. Referring to fig. 1, a schematic architecture diagram of a wireless communication system according to an embodiment of the present application is provided. As shown in fig. 1, the wireless communication system may include: network device 11, network device 12, and terminal 13, terminal 13 may be referred to as UE13, and terminal 13 may communicate (transmit signaling or transmit data) with network device 11 and network device 12. In practical application, the connection between the devices may be wireless connection, and for convenience and intuitionistic representation of the connection relationship between the devices, a solid line is used for illustration in fig. 1.
The network device 11 and the network device 12 provided in the embodiments of the present application may be base stations, which may be commonly used base stations, evolved base stations (evolved node base station, eNB), and network devices in a 5G system (for example, next generation base stations (next generation node base station, gNB) or transmission and reception points (transmission and reception point, TRP)) and other devices.
The terminal 13 provided by the embodiment of the application can be a mobile phone, a tablet computer, a notebook computer, an Ultra-mobile personal computer (Ultra-Mobile Personal Computer, UMPC), a netbook or personal digital assistant (Personal Digital Assistant, PDA), a mobile internet Device (Mobile Internet Device, MID), a Wearable Device or a vehicle-mounted Device, and the like.
Referring to fig. 2, an embodiment of the present application provides a method for deactivating an SCell, where an execution body of the method is a terminal, including: step 201.
Step 201: if the terminal receives first indication information sent by a special Cell (SpCell) or a first SCell, starting or restarting a deactivation timer of the first SCell or suspending the deactivation timer of the first SCell;
the first indication information indicates that the terminal is located or enters a non-dormant state in the first SCell;
in the embodiment of the present application, the special cell may include: primary Cell (PCell) and/or Primary secondary Cell (Primary secondary Cell, PScell).
In the embodiment of the present application, the first SCell is configured with a deactivation timer (scelldeactivation timer), and if the deactivation timer of the first SCell expires, the first SCell may be deactivated, or the deactivation timer of the first SCell may also be stopped.
Alternatively, the unit of the deactivation timer may be a millisecond (ms), an orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbol, a slot (slot), or a subframe, etc., although not limited thereto.
For example, the first indication information is received from the PCell, the PScell or the first SCell through a first physical downlink control channel (Physical Downlink Control Channel, PDCCH), where the first PDCCH is a PDCCH carrying downlink control information of non-scheduled data (i.e., the PDCCH does not indicate uplink grant (ul grant) or downlink allocation (downlink assignment)), or the first PDCCH is a PDCCH carrying downlink control information of data for scheduling the SpCell (i.e., the PDCCH indicates uplink grant or downlink assignment).
That is, the network side may instruct the UE to switch between the two states through signaling, for example, through PDCCH. For example, the UE is indicated in a dormant state (dormant-like state) or a non-dormant state (non-dormant-like state) of the SCell through a PDCCH transmitted by a special cell or the SCell.
(1) dorman-like state:
in this state, the UE does not monitor the PDCCH or monitors the PDCCH for a long period, for example, monitors the PDCCH once every 2560 slots (slots), according to the network side configuration; in this state, the UE may make channel state information (Channel State Information, CSI) measurements and reports. In this state, the UE is comparatively power-saving.
(2) non dorman-like state:
in this state, the UE monitors the PDCCH more frequently according to the network side configuration, for example, each downlink slot monitors the PDCCH, and the UE may perform CSI measurement and reporting. In this state, the UE power consumption is large.
Further, the first indication information also indicates that the terminal is in a dormant state or a non-dormant state of other scells.
The above-mentioned dormant or non-dormant state, also referred to as dormant or non-dormant state, may be achieved by configuring the terminal with different Bandwidth parts (BWP), i.e. configuring one dormant BWP and one non-dormant BWP, by indicating that the terminal enters different BWP, thereby achieving that the terminal enters different states (dormant or non-dormant state).
Further, after the deactivation timer of the first SCell is suspended (suspend), if a terminal receives second indication information from the SpCell or the first SCell, and the second indication information indicates that the terminal is in or enters a dormant state at the first SCell, the deactivation timer of the first SCell is continuously operated. Because the terminal will enter the dormant state at this time, i.e. the UE does not monitor the PDCCH or the period of monitoring the PDCCH is long, in this case, the UE continues to execute the suspended deactivation timer, i.e. the deactivation timer of the first SCell resumes, and after the deactivation timer expires, the SCell is deactivated, so as to achieve the effect of saving power.
In some embodiments, the method may further comprise:
under the condition that the deactivation timer of the first SCell is suspended, if the terminal receives the PDCCH of the activated first SCell to indicate uplink scheduling or downlink scheduling, the deactivation timer of the first SCell is started or restarted, so that the fact that the deactivation timer of the first SCell is overtime too early by the terminal can be avoided, the first SCell is prevented from being deactivated too early, and more timely data scheduling of the first SCell is facilitated.
In some embodiments, the method may further comprise:
under the condition that the deactivation timer of the first SCell is suspended, if the terminal receives the uplink scheduling or the downlink scheduling of the first SCell, which is activated by the PDCCH indication scheduling of the serving cell, the deactivation timer of the first SCell is started or restarted, so that the terminal can be prevented from overtime of the deactivation timer of the first SCell too early, the first SCell is prevented from being deactivated too early, and more timely data scheduling of the first SCell is facilitated. The serving cell may be a Spcell or an SCell.
In some embodiments, the method may further comprise:
under the condition that the deactivation timer of the first SCell is suspended, if the terminal sends the MAC PDU of uplink authorization scheduling, the deactivation timer of the first SCell is started or restarted, so that the terminal can be prevented from overtime of the deactivation timer of the first SCell too early, the first SCell is prevented from being deactivated too early, and more timely data scheduling of the first SCell is facilitated. In some embodiments, the method may further comprise: and under the condition that the deactivation timer of the first SCell is suspended, if the terminal receives the downlink scheduled MAC PDU, starting or restarting the deactivation timer of the first SCell.
In some embodiments, the method may further comprise: and if the terminal receives the PDCCH of the activated first SCell to indicate uplink scheduling or downlink scheduling, starting or restarting a deactivation timer of the first SCell.
In some embodiments, the method may further comprise: if the terminal receives the uplink scheduling or the downlink scheduling of the first SCell which is activated by the PDCCH indication scheduling of the serving cell, starting or restarting a deactivation timer of the first SCell;
in some embodiments, the method may further comprise: and if the terminal sends the MAC PDU of the uplink grant scheduling, starting or restarting the deactivation timer of the first SCell.
In some embodiments, the method may further comprise: and if the terminal receives the downlink scheduled MAC PDU, starting or restarting the deactivation timer of the first SCell.
In some embodiments, the method further comprises: if the deactivation timer of the first SCell expires, the first SCell is deactivated and/or the deactivation timer of the first SCell is stopped.
In the embodiment of the application, the network side can instruct the terminal to enter the dormant state or the non-dormant state of the first SCell, so that the terminal can start or restart the deactivation timer of the first SCell according to the indication of the network side, or suspend the deactivation timer of the first SCell.
Referring to fig. 3, an embodiment of the present application further provides a method for indicating to deactivate a secondary cell, where an execution body of the method is a network device, including: step 301.
Step 301: transmitting first indication information to a terminal through a SpCell or a first SCell, wherein the first indication information indicates that the terminal is located or enters a non-dormant state in the first SCell;
the first indication information is used for the terminal to start or restart the deactivation timer of the first SCell or suspend the deactivation timer of the first SCell.
In the embodiment of the present application, optionally, second indication information is sent to the terminal through the SpCell or the first SCell, where the second indication information indicates that the terminal is located in or enters a dormant state in the first SCell; the second indication information is used for the terminal to continue to operate the deactivation timer of the first SCell.
In the embodiment of the present application, the first SCell is configured with a deactivation timer (scelldeactivation timer), and if the deactivation timer of the first SCell expires, the first SCell may be deactivated, or the deactivation timer of the first SCell may also be stopped.
In some embodiments, the first indication information is sent through a first PDCCH of the SpCell or the first SCell, where the first PDCCH is a PDCCH carrying downlink control information of non-scheduling data, or the first PDCCH is a PDCCH carrying downlink control information of data for scheduling the SpCell.
Further, the first indication information may further indicate that the terminal is in a dormant state or a non-dormant state of other scells. The other SCell is a secondary cell outside the first SCell.
In the embodiment of the application, the network side can instruct the terminal to enter the dormant state or the non-dormant state of the first SCell, so that the terminal can start or restart the deactivation timer of the first SCell according to the indication of the network side, or suspend the deactivation timer of the first SCell.
Embodiments of the present application are described below in conjunction with examples 1, 2 and 3.
Example 1:
and receiving a sCellDeactivationTimer parameter configured for one SCell of the UE by the network side.
If the UE receives the SpCell or a first PDCCH sent by the SCell and indicating that the UE is in or enters a non-dormancy-like state in the SCell, starting or restarting the sCelldeactivationTimer of the SCell;
a) The first PDCCH is a PDCCH carrying non-scheduling DCI (i.e. the PDCCH does not indicate uplink grant or downlink allocation downlink assignment), or is a PDCCH carrying scheduling DCI of scheduling SpCell (i.e. the PDCCH indicates uplink grant or downlink allocation downlink assignment);
b) The first PDCCH may also indicate a downlink-like state or a non-downlink-like state of other scells of the UE;
c) If the UE receives the SpCell or a second PDCCH sent by the SCell and indicating that the UE is in or enters a dormancy-like state in the SCell, the sCelldeactivationTimer of the SCell is not started or restarted;
d) The sCellDeactivationTimer parameter may be in units of milliseconds, OFDM symbols, slots or subframes, etc.
Further, if the PDCCH on the activated Scell indicates uplink scheduling or downlink scheduling; or, the PDCCH of the serving cell indicates uplink scheduling or downlink scheduling of the Scell activated by scheduling; or, the UE sends the MAC PDU of the uplink grant schedule or receives the MAC PDU of the downlink schedule, and starts or restarts the sCellDeactivationTimer.
Further, if sCellDeactivationTimer of the SCell times out, the SCell is deactivated and/or sCellDeactivationTimer for the SCell is stopped.
When the UE receives the PCell or the first PDCCH sent by the SCell and indicating that the UE is in or enters a non-dormancy-like state, because the base station indicates the UE to enter the non-dormancy-like state which needs to monitor the PDCCH frequently or normally, the subsequent base station has a large probability that downlink data are transmitted or the UE has uplink data to be scheduled, at the moment, the sCelldeactivationTimer of the SCell is started or restarted, the premature deactivation of the SCell by the UE is avoided, and the timeliness of the subsequent SCell data scheduling is facilitated.
Example 2:
and receiving a sCellDeactivationTimer parameter configured for one SCell of the UE by the network side.
If the UE receives the SpCell or a third PDCCH sent by the SCell and indicating that the UE is in or enters a dormancy-like state or a non-dormancy-like state in the SCell, starting or restarting the sCelldeactivationTimer of the SCell;
a) The third PDCCH is a PDCCH carrying non-scheduling DCI (i.e. the PDCCH does not indicate uplink grant or downlink allocation downlink assignment), or is a PDCCH carrying scheduling DCI for scheduling PCell (i.e. the PDCCH indicates uplink grant or downlink allocation downlink assignment);
b) The third PDCCH may also simultaneously indicate that the UE is in a downlink-like state or a non-downlink-like state of other scells;
c) The sCellDeactivationTimer parameter unit may be ms, OFDM symbol, slot, subframe, or the like.
Further, if the PDCCH on the activated SCell indicates uplink scheduling or downlink scheduling; or, the PDCCH of the serving cell indicates uplink scheduling or downlink scheduling of the SCell activated by scheduling; or, the UE sends the MAC PDU of the uplink grant schedule or receives the MAC PDU of the downlink schedule, and starts or restarts the sCellDeactivationTimer.
Further, if sCellDeactivationTimer of the SCell times out, the SCell is deactivated and/or SCell scells deactivationtimer is stopped.
When the UE receives the PCell or the third PDCCH sent by the SCell and indicating that the UE is in or enters a non-dormancy-like state, because the base station indicates the UE to enter the non-dormancy-like state which needs to monitor the PDCCH frequently/normally, the subsequent base station has a large probability that downlink data are transmitted or the UE has uplink data to be scheduled, at the moment, the sCelldeactivationTimer of the SCell is started or restarted, the premature deactivation of the SCell by the UE is avoided, and the timeliness of the subsequent SCell data scheduling is facilitated.
Example 3:
and receiving a sCellDeactivationTimer parameter configured for one SCell of the UE by the network side.
If the UE receives the SpCell or a fourth PDCCH sent by the SCell and indicating that the UE is in or enters a non-downlink-like state in the SCell, suspending (suspend) the SCell's sCellDeactivationTimer, or extending the SCell's sCellDeactivationTimer for a certain time (e.g., before receiving the fourth PDCCH, the sCellDeactivationTimer is 20ms, after receiving the fourth PDCCH, the sCellDeactivationTimer is extended for 10ms, i.e., the sCellDeactivationTimer is 30ms; wherein the extended duration 10ms is configured by the network side);
a) The fourth PDCCH is a PDCCH carrying non-scheduling DCI (i.e. the PDCCH does not indicate uplink grant or downlink assignment), or is a PDCCH carrying scheduling DCI for scheduling PCell (i.e. the PDCCH indicates uplink grant or downlink allocation downlink assignment);
b) The fourth PDCCH may also indicate that the UE is in a downlink-like state or a non-downlink-like state of other scells;
c) If the UE receives a PCell or a fifth PDCCH sent by the SCell and indicating that the UE is in or enters a dormancy-like state in the SCell, continuing (resume) to operate the sCellDeactionTimer of the SCell;
d) During the suspension period of sCellDeactivationTimer of the SCell, if the PDCCH on the activated SCell indicates uplink scheduling or downlink scheduling; or, the PDCCH of the serving cell indicates uplink scheduling or downlink scheduling of the Scell activated by scheduling; or, the UE transmits the MAC PDU of the uplink authorization scheduling or receives the MAC PDU of the downlink scheduling, and starts or restarts the sCellDeactionTimer;
e) The sCellDeactivationTimer parameter unit may be ms, OFDM symbol, slot, subframe, or the like.
Further, if the PDCCH on the activated SCell indicates uplink scheduling or downlink scheduling; or, the PDCCH of the serving cell indicates uplink scheduling or downlink scheduling of the SCell activated by scheduling; or, the UE sends the MAC PDU of the uplink grant schedule or receives the MAC PDU of the downlink schedule, and starts or restarts the sCellDeactivationTimer when the UE sends the MAC PDU of the uplink grant schedule or receives the MAC PDU of the downlink schedule.
Further, when the SCell scells deactivationtimer times out, the SCell is deactivated, and/or the SCell scells deactivationtimer is stopped.
When the UE receives the PCell or the fourth PDCCH sent by the SCell and indicating that the UE is in or enters the 'non-normal-like' state in the SCell, because the base station indicates the UE to enter the 'non-normal-like' state in which frequent/normal monitoring of the PDCCH is required, the subsequent base station has a large probability that downlink data is required to be transmitted, or the UE has uplink data to be scheduled, at this time, the SCell deactivationtimer of the SCell is suspended, so that the premature deactivation of the SCell by the UE is avoided, and the method is beneficial to subsequent SCell data scheduling.
Referring to fig. 4, the embodiment of the present application further provides a terminal, the terminal 400 includes:
a processing module 401, configured to start or restart a deactivation timer of a first SCell or suspend the deactivation timer of the first SCell if the terminal receives first indication information sent by the SpCell or the first SCell;
the first indication information indicates that the terminal is located in or enters a non-dormant state in the first SCell.
In some implementations, the processing module 401 is further to: if the terminal receives second indication information sent by the SpCell or the first SCell, continuing to run a deactivation timer of the first SCell;
the second indication information indicates that the terminal is located in or enters a dormant state at the first SCell.
In some implementations, the processing module 401 is further to: under the condition that the deactivation timer of the first SCell is suspended, if the terminal receives that the physical downlink control channel PDCCH of the activated first SCell indicates uplink scheduling or downlink scheduling, the deactivation timer of the first SCell is started or restarted;
or alternatively, the process may be performed,
under the condition that the deactivation timer of the first SCell is suspended, if the terminal receives the PDCCH of a serving cell to instruct uplink scheduling or downlink scheduling of the first SCell which is activated by scheduling, the deactivation timer of the first SCell is started or restarted;
or alternatively, the process may be performed,
under the condition that the deactivation timer of the first SCell is suspended, if the terminal sends a media access control protocol data unit (MAC PDU) of uplink authorization scheduling, the deactivation timer of the first SCell is started or restarted;
or alternatively, the process may be performed,
and under the condition that the deactivation timer of the first SCell is suspended, if the terminal receives the downlink scheduled MAC PDU, starting or restarting the deactivation timer of the first SCell.
In some embodiments, the first indication information is received from the SpCell or the first SCell through a first physical downlink control channel PDCCH, where the first PDCCH is a PDCCH carrying downlink control information of non-scheduling data, or the first PDCCH is a PDCCH carrying downlink control information of data for scheduling the SpCell.
In some embodiments, the first indication information further indicates that the terminal is in a dormant state or a non-dormant state of other scells.
In some implementations, the processing module 401 is further to:
if the terminal receives the PDCCH of the activated first SCell to indicate uplink scheduling or downlink scheduling, starting or restarting a deactivation timer of the first SCell;
or alternatively, the process may be performed,
if the terminal receives the uplink scheduling or the downlink scheduling of the first SCell which is activated by the PDCCH indication scheduling of the serving cell, starting or restarting a deactivation timer of the first SCell;
or alternatively, the process may be performed,
if the terminal sends the MAC PDU of the uplink authorization scheduling, starting or restarting the deactivation timer of the first SCell;
or alternatively, the process may be performed,
and if the terminal receives the MAC PDU which receives the downlink scheduling, starting or restarting the deactivation timer of the first SCell.
In some implementations, the processing module 401 is further to: if the deactivation timer of the first SCell expires, the first SCell is deactivated and/or the deactivation timer of the first SCell is stopped.
The terminal provided in the embodiment of the present application may execute the embodiment shown in fig. 2, and its implementation principle and technical effects are similar, and this embodiment will not be described herein.
Referring to fig. 5, an embodiment of the present application further provides a network device, where the network device 500 includes:
a sending module 501, configured to send first indication information to a terminal through a SpCell or a first SCell, where the first indication information indicates that the terminal is located in or enters a non-dormant state at the first SCell;
the first indication information is used for the terminal to start or restart the deactivation timer of the first SCell or suspend the deactivation timer of the first SCell.
In some embodiments, the sending module 501 is further configured to: transmitting second indication information to the terminal through the SpCell or the first SCell, wherein the second indication information indicates that the terminal is located or enters a dormant state in the first SCell;
the second indication information is used for the terminal to continue to operate the deactivation timer of the first SCell.
In some embodiments, the sending module 501 is further configured to: and sending the first indication information through a first PDCCH of the SpCell or the first SCell, wherein the first PDCCH is a PDCCH carrying downlink control information of non-scheduling data, or the first PDCCH is a PDCCH carrying downlink control information of scheduling data of the PCell.
The network device provided in the embodiment of the present application may implement the embodiment shown in fig. 3, and its implementation principle and technical effects are similar, and this embodiment will not be described herein.
As shown in fig. 6, the terminal 600 shown in fig. 6 includes: at least one processor 601, a memory 602, at least one network interface 604, and a user interface 603. The various components in terminal 600 are coupled together by a bus system 605. It is understood that the bus system 605 is used to enable connected communications between these components. The bus system 605 includes a power bus, a control bus, and a status signal bus in addition to a data bus. But for clarity of illustration the various buses are labeled as bus system 605 in fig. 6.
The user interface 603 may include, among other things, a display, a keyboard, or a pointing device (e.g., a mouse, a trackball, a touch pad, or a touch screen, etc.).
It is to be appreciated that the memory 602 in embodiments of the application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data rate SDRAM (Double Data rate SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). The memory 602 of the system and method described in embodiments of the application is intended to comprise, without being limited to, these and any other suitable types of memory.
In some implementations, the memory 602 holds the following elements, executable modules or data structures, or a subset thereof, or an extended set thereof: an operating system 6021 and application programs 6022.
The operating system 6021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, for implementing various basic services and processing hardware-based tasks. The application 6022 includes various application programs such as a Media Player (Media Player), a Browser (Browser), and the like for realizing various application services. The program for implementing the method of the embodiment of the present application may be included in the application 6022.
In one embodiment of the present application, the steps of the method shown in fig. 2 are implemented when executed by calling a program or instruction stored in the memory 602, specifically, a program or instruction stored in the application 6022.
The terminal provided by the embodiment of the present application may execute the method embodiment shown in fig. 2, and its implementation principle and technical effects are similar, and this embodiment will not be described herein.
Referring to fig. 7, fig. 7 is a block diagram of a network device to which the embodiment of the present application is applied, and as shown in fig. 7, a network device 700 includes: a processor 701, a transceiver 702, a memory 703 and a bus interface, wherein the processor 701 may be responsible for managing the bus architecture and general processing. The memory 703 may store data used by the processor 701 in performing operations.
In one embodiment of the application, the network device 700 further comprises: a computer program stored on the memory 703 and executable on the processor 701, which when executed by the processor 701 performs the steps in the method shown in fig. 3 above.
In fig. 7, a bus architecture may be comprised of any number of interconnected buses and bridges, and in particular, one or more processors represented by the processor 701 and various circuits of memory represented by the memory 703. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 702 may be a number of elements, i.e., including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium.
The network device provided in the embodiment of the present application may execute the embodiment of the method of fig. 3, and its implementation principle and technical effects are similar, and this embodiment will not be described herein.
The steps of a method or algorithm described in connection with the present disclosure may be embodied in hardware, or may be embodied in software instructions executed by a processor. The software instructions may be comprised of corresponding software modules that may be stored in random access Memory (Random Access Memory, RAM), flash Memory, read-Only Memory (ROM), erasable programmable Read-Only Memory (EPROM), electrically Erasable programmable Read-Only Memory (EEPROM), registers, hard disk, a removable disk, a Read-Only optical disk, or any other form of 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. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an application specific integrated circuit (Application Specific Integrated Circuit, ASIC). In addition, the ASIC may be located in a core network interface device. The processor and the storage medium may reside as discrete components in a core network interface device.
Those skilled in the art will appreciate that in one or more of the examples described above, the functions described in the present application may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, these 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 foregoing embodiments have been provided for the purpose of illustrating the general principles of the present application in further detail, and are not to be construed as limiting the scope of the application, but are merely intended to cover any modifications, equivalents, improvements, etc. based on the teachings of the application.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, embodiments of the present application 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 application may take the form of a computer program product 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 application are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various modifications and variations can be made to the embodiments of the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the embodiments of the present application fall within the scope of the claims and the equivalents thereof, the present application is also intended to include such modifications and variations.

Claims (11)

1. A method of deactivating a secondary cell, SCell, comprising:
if a terminal receives first indication information sent by a special cell SpCell or a first SCell, suspending a deactivation timer of the first SCell;
the first indication information indicates that the terminal is located or enters a non-dormant state in the first SCell;
the method further comprises the steps of:
if the terminal receives second indication information sent by the SpCell or the first SCell, continuing to run a deactivation timer of the first SCell;
the second indication information indicates that the terminal is located in or enters a dormant state in the first SCell.
2. The method of claim 1, wherein in case of suspending the deactivation timer of the first SCell, the method further comprises:
if the terminal receives that the physical downlink control channel PDCCH of the activated first SCell indicates uplink scheduling or downlink scheduling, starting or restarting a deactivation timer of the first SCell;
or alternatively, the process may be performed,
if the terminal receives the uplink scheduling or the downlink scheduling of the first SCell, which is activated by the PDCCH indication scheduling of the serving cell, starting or restarting a deactivation timer of the first SCell;
or alternatively, the process may be performed,
if the terminal sends a media access control protocol data unit (MAC PDU) of uplink authorization scheduling, starting or restarting a deactivation timer of the first SCell;
or alternatively, the process may be performed,
and if the terminal receives the downlink scheduled MAC PDU, starting or restarting the deactivation timer of the first SCell.
3. The method of claim 1, wherein the first indication information is received from the SpCell or first SCell over a first physical downlink control channel, PDCCH, the first PDCCH being a PDCCH carrying downlink control information for non-scheduled data, or the first PDCCH being a PDCCH carrying downlink control information for scheduling data of the SpCell.
4. The method of claim 1, wherein the first indication information further indicates that the terminal is in a dormant or non-dormant state of other scells.
5. The method according to claim 1, wherein the method further comprises:
if the deactivation timer of the first SCell expires, the first SCell is deactivated and/or the deactivation timer of the first SCell is stopped.
6. A method for indicating deactivation of a secondary cell, comprising:
transmitting first indication information to a terminal through a SpCell or a first SCell, wherein the first indication information indicates that the terminal is located or enters a non-dormant state in the first SCell;
the first indication information is used for suspending a deactivation timer of the first SCell by the terminal;
the method further comprises the steps of:
transmitting second indication information to the terminal through the SpCell or the first SCell, wherein the second indication information indicates that the terminal is located or enters a dormant state in the first SCell;
the second indication information is used for the terminal to continue to operate the deactivation timer of the first SCell.
7. The method of claim 6, wherein the sending the first indication information to the terminal through the SpCell or the first SCell comprises:
and sending the first indication information through a first PDCCH of the SpCell or the first SCell, wherein the first PDCCH is a PDCCH carrying downlink control information of non-scheduling data, or the first PDCCH is a PDCCH carrying downlink control information of data for scheduling the SpCell.
8. A terminal, comprising:
the processing module is used for suspending a deactivation timer of a first SCell if the terminal receives first indication information sent by a special cell SpCell or the first SCell;
the first indication information indicates that the terminal is located in or enters a non-dormant state in the first SCell.
9. A network device, comprising:
a sending module, configured to send first indication information to a terminal through a SpCell or a first SCell, where the first indication information indicates that the terminal is located in or enters a non-dormant state at the first SCell;
wherein the first indication information is used for suspending a deactivation timer of the first SCell by the terminal.
10. A communication device, comprising: a processor, a memory and a program stored on the memory and executable on the processor, which when executed by the processor, performs the steps of the method of deactivating a secondary cell as claimed in any one of claims 1 to 5, or the steps of the method of instructing deactivation of a secondary cell as claimed in any one of claims 6 to 7.
11. A computer readable storage medium, having stored thereon a computer program which, when executed by a processor, implements the steps of the method of deactivating a secondary cell according to any of claims 1 to 5 or the steps of the method of instructing deactivation of a secondary cell according to any of claims 6 to 7.
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KR20190076834A (en) * 2017-12-22 2019-07-02 주식회사 케이티 Methods for controlling SCell state and Apparatuses thereof

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JP2014514831A (en) * 2011-04-01 2014-06-19 インターデイジタル パテント ホールディングス インコーポレイテッド Method and apparatus for controlling connectivity to a network
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