WO2024255826A1 - 一种被用于无线通信的方法和装置 - Google Patents

一种被用于无线通信的方法和装置 Download PDF

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Publication number
WO2024255826A1
WO2024255826A1 PCT/CN2024/099146 CN2024099146W WO2024255826A1 WO 2024255826 A1 WO2024255826 A1 WO 2024255826A1 CN 2024099146 W CN2024099146 W CN 2024099146W WO 2024255826 A1 WO2024255826 A1 WO 2024255826A1
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Prior art keywords
signaling
cell
active time
drx active
indicates
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PCT/CN2024/099146
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English (en)
French (fr)
Inventor
张锦芳
张晓博
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Shanghai Langbo Communication Technology Co Ltd
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Shanghai Langbo Communication Technology Co Ltd
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Priority to KR1020257043750A priority Critical patent/KR20260022959A/ko
Priority to EP24822774.6A priority patent/EP4730869A1/en
Priority to AU2024304489A priority patent/AU2024304489A1/en
Publication of WO2024255826A1 publication Critical patent/WO2024255826A1/zh
Anticipated expiration legal-status Critical
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is leader and terminal is follower
    • H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is leader and terminal is follower using a pre-established activity schedule, e.g. traffic indication frame
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • 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
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0072—Transmission or use of information for re-establishing the radio link of resource information of target access point
    • 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
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0077—Transmission or use of information for re-establishing the radio link of access information of target access point
    • 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
    • H04W36/0085—Hand-off measurements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/04—Reselecting a cell layer in multi-layered cells
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/32—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/004—Synchronisation arrangements compensating for timing error of reception due to propagation delay
    • H04W56/0045—Synchronisation arrangements compensating for timing error of reception due to propagation delay compensating for timing error by altering transmission time
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/231—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the layers above the physical layer, e.g. RRC or MAC-CE signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
    • 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

Definitions

  • the present application relates to methods and devices in wireless communication systems, and more particularly to methods and devices supporting discontinuous reception (DRX) in wireless communications.
  • DRX discontinuous reception
  • DRX is a common method in wireless communication, which can reduce the power consumption of communication terminals and improve standby time.
  • the base station controls the timer related to DRX through DCI (Downlink Control Information) or MAC (Medium Access Control) CE (Control Element), and then controls whether the terminal is in the active time in a given time slot or subframe, and further controls the wireless reception of the communication terminal, including when the terminal is in the active time, the terminal monitors and receives the wireless signal; when the terminal is in the inactive time, the terminal stops monitoring the wireless signal.
  • DCI Downlink Control Information
  • MAC Medium Access Control
  • L3 Layer 3
  • RRC Radio Resource Control
  • the service cell change implemented in L3 has the characteristics of long delay, large signaling overhead and long interruption time.
  • WI Work Item
  • the design goal of mobility enhancement technology based on L1/L2 is to achieve fast switching of UE service cells.
  • the present application discloses a solution.
  • the embodiments and features in the embodiments of the first node of the present application can be applied to the second node, and vice versa.
  • the embodiments and features in the embodiments of the present application can be arbitrarily combined with each other.
  • the original intention of the present application is for the Uu air interface, the present application can also be used for the PC5 port.
  • this application is also applicable to other scenarios facing similar problems, such as other scenarios that require mobility support, including but not limited to multi-antenna systems, multi-TRP (Transmission Reception Point) systems, capacity enhancement systems, short-range communication systems, unlicensed frequency domain communications, IoT (Internet of Things), URLLC (Ultra Reliable Low Latency Communication) networks, Internet of Vehicles communications, relay communications, dual-connectivity (DC), multi-connectivity (MC), etc., to achieve similar technical effects.
  • the use of a unified solution for different scenarios can also help reduce hardware complexity and costs.
  • the interpretation of terms (Terminology), nouns, functions, and variables in this application can refer to the definitions in the 3GPP specification protocols TS38 series and TS37 series.
  • the present application discloses a method in a first node used for wireless communication, characterized by comprising:
  • the DRX active time depends on the first signaling; the first signaling is a lower layer signaling.
  • the first RRC signaling in the above method indicates that the DRX active time can effectively support UE power saving.
  • the first signaling in the above method is a lower layer signaling that can realize fast cell switching.
  • the DRX active time in the above method depends on the first signaling, which can effectively reduce the cell switching delay.
  • the DRX active time in the above method depends on the first signaling, which can reduce the risk of cell switching failure.
  • the DRX active time in the above method depends on the first signaling and can increase the DRX active time to complete the cell switching in time.
  • the DRX active time in the above method relies on the first signaling to improve system processing flexibility.
  • the DRX active time being dependent on the first signaling includes: the DRX active time starts from receiving the first signaling.
  • the above method can avoid entering the DRX inactive time, timely monitor the PDCCH (Physical Downlink Control CHannel), and reduce the cell switching delay.
  • PDCCH Physical Downlink Control CHannel
  • the DRX active time being dependent on the first signaling includes: the DRX active time starts after the second signaling is sent.
  • the above method can avoid entering the DRX inactive time, monitor the PDCCH in time, and reduce the cell switching delay.
  • the DRX active time being dependent on the first signaling includes: the DRX active time starting from when the configuration of the second cell is applied;
  • the first signaling indicates that the configuration of the second cell is applied.
  • the above method can avoid entering the DRX inactive time, monitor the PDCCH in time, and reduce the cell switching delay.
  • the PDCCH is monitored, and the PDCCH indicates the time-frequency resources occupied by the second RRC signaling.
  • the above method indicates that the network cell switching is successful by sending the second RRC signaling.
  • the above method can speed up the cell switching process, reduce the cell switching delay, and reduce the service interruption caused by cell switching by sending the second RRC signaling through the time-frequency resources scheduled by the PDCCH.
  • the first signaling indicates a timing advance value for the second cell; the first signaling does not trigger sending a random access preamble on the second cell.
  • the above method can speed up the cell switching process, reduce the cell switching delay, and reduce the service interruption caused by cell switching by indicating the timing advance value for the second cell through the first signaling.
  • the above method can simplify the random access process by indicating the timing advance value for the second cell through the first signaling.
  • the above method can enable the first node to omit obtaining uplink synchronization with the second cell through a random access process during a switching process by indicating the timing advance value for the second cell through the first signaling.
  • the above method can save signaling overhead by indicating the timing advance value for the second cell through the first signaling.
  • the first signaling in the above method does not trigger the sending of a random access preamble on the second cell, which can speed up the cell switching process, reduce the cell switching delay, and reduce service interruption caused by cell switching.
  • the first random access preamble is used to determine the timing advance value for the second cell.
  • the above method can enable the network to obtain the timing advance value (timing advance value) sent by the first node for the uplink of the second cell in advance by triggering the sending of the first random access preamble before the cell switching, thereby accelerating the cell switching process.
  • the present application discloses a method used in a second node of wireless communication, characterized by comprising:
  • PDCCH is monitored within the DRX active time on the second cell; the DRX active time depends on the first signaling; and the first signaling is a lower layer signaling.
  • the DRX active time being dependent on the first signaling includes: the DRX active time starting from when the first signaling is received.
  • the DRX active time being dependent on the first signaling includes: the DRX active time starts from when the second signaling is sent.
  • the DRX active time being dependent on the first signaling includes: the DRX active time starting from when the configuration of the second cell is applied;
  • the first signaling indicates that the configuration of the second cell is applied.
  • the first signaling indicates a timing advance value for the second cell; the first signaling does not trigger sending a random access preamble on the second cell.
  • the third signaling is used to trigger sending a first random access preamble on the second cell; and the first random access preamble is used to determine the timing advance value for the second cell.
  • a first message is received, the first message indicating the timing advance value for the second cell.
  • the sender of the first message is co-located with the receiver of the first random access preamble.
  • the timing advance value for the second cell indicated in the first message is used to generate the timing advance value for the second cell indicated in the first signaling.
  • the above method can simplify the UE receiving capability by obtaining the timing advance value for the second cell through the first message and the first signaling.
  • a second message is sent, where the second message indicates switching to the second cell.
  • the second message is sent after the first signaling.
  • the receiver of the second message is co-located with the sender of the PDCCH.
  • the above method can promptly indicate the cell switching to the base station of the target cell through the second message.
  • the present application discloses a method in a third node used for wireless communication, characterized by comprising:
  • the first random access preamble is used to determine a timing advance value for the second cell; wherein, a first RRC signaling is received, the first RRC signaling indicates a DRX active time, and the DRX active time is applied to at least the second cell; a first signaling is received on the first cell, the first signaling indicates a switch to the second cell; PDCCH is monitored during the DRX active time on the second cell; the DRX active time depends on the first signaling; the first signaling is a lower layer signaling; a third signaling is received before the first signaling is received, and the third signaling is used to trigger sending the first random access preamble.
  • the DRX active time being dependent on the first signaling includes: the DRX active time starting from when the first signaling is received.
  • the DRX active time being dependent on the first signaling includes: the DRX active time starting from when the second signaling is sent;
  • the second signaling is received on the first cell, and the second signaling indicates that the first signaling is correctly received.
  • the DRX active time being dependent on the first signaling includes: the DRX active time starting from when the configuration of the second cell is applied;
  • the first signaling indicates that the configuration of the second cell is applied.
  • the PDCCH indicates the time-frequency resources occupied by the second RRC signaling.
  • the first signaling indicates the timing advance value for the second cell; the first signaling does not trigger sending Random access preamble.
  • a first message is sent, wherein the first message indicates the timing advance value for the second cell.
  • a second message is received, where the second message indicates switching to the second cell.
  • the present application discloses a first node used for wireless communication, characterized in that it includes:
  • a first receiver receives a first RRC signaling, wherein the first RRC signaling indicates a DRX active time, and the DRX active time is applied to at least a second cell; receives a first signaling on the first cell, wherein the first signaling indicates switching to the second cell; and monitors a PDCCH during the DRX active time on the second cell;
  • the DRX active time depends on the first signaling; the first signaling is a lower layer signaling.
  • the present application discloses a second node used for wireless communication, characterized in that it includes:
  • the second transmitter sends a first RRC signaling, where the first RRC signaling indicates a DRX active time, where the DRX active time is applied to at least the second cell; and sends a first signaling on the first cell, where the first signaling indicates switching to the second cell;
  • PDCCH is monitored within the DRX active time on the second cell; the DRX active time depends on the first signaling; and the first signaling is a lower layer signaling.
  • the present application discloses a third node used for wireless communication, characterized in that it includes:
  • a third receiver receives a first random access preamble on a second cell; wherein the first random access preamble is used to determine a timing advance value for the second cell;
  • a first RRC signaling is received, the first RRC signaling indicates a DRX active time, and the DRX active time is applied to at least the second cell; a first signaling is received on the first cell, the first signaling indicates a switch to the second cell; PDCCH is monitored during the DRX active time on the second cell; the DRX active time depends on the first signaling; the first signaling is a lower layer signaling; a third signaling is received before the first signaling is received, and the third signaling is used to trigger the sending of the first random access preamble.
  • FIG1 illustrates a signal processing flow chart in a first node according to an embodiment of the present application
  • FIG2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application
  • FIG3 illustrates a schematic diagram of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application
  • FIG4 illustrates a schematic diagram of hardware modules of a communication device according to an embodiment of the present application
  • FIG5 illustrates a wireless signal transmission flow chart according to an embodiment of the present application
  • FIG6 illustrates a signal transmission flow chart in a backhaul network according to an embodiment of the present application
  • FIG7 illustrates a schematic diagram of DRX active time according to an embodiment of the present application
  • FIG8 illustrates a schematic diagram of DRX active time according to an embodiment of the present application
  • FIG9 illustrates a schematic diagram of DRX active time according to an embodiment of the present application.
  • FIG10 illustrates a structural block diagram of a processing device in a first node according to an embodiment of the present application
  • FIG11 illustrates a structural block diagram of a processing device in a second node according to an embodiment of the present application
  • FIG12 illustrates a structural block diagram of a processing device in a third node according to an embodiment of the present application.
  • Embodiment 1 illustrates a signal processing flow chart in a first node according to an embodiment of the present application, as shown in FIG1 .
  • the first node 100 receives a first RRC signaling in step 101, wherein the first RRC signaling indicates that DRX is active. time, the DRX active time is applied to at least the second cell; in step 102, a first signaling is received on the first cell, and the first signaling indicates switching to the second cell; step 103z2 monitors PDCCH during the DRX active time on the second cell; wherein the DRX active time depends on the first signaling; the first signaling is a lower layer signaling.
  • a first RRC signaling is received.
  • the first RRC signaling is received on the first cell.
  • the first RRC signaling is received on a serving cell of the first node.
  • the service cell of the first node includes a SpCell (Special Cell).
  • the service cell of the first node includes a SCell (Secondary Cell).
  • the service cell of the first node includes the first cell.
  • the first RRC signaling is RRCReconfiguration (RRC reconfiguration).
  • the first RRC signaling includes a candidate configuration.
  • the first RRC signaling includes a reference configuration.
  • the first RRC signaling includes a candidate target configuration.
  • the first RRC signaling includes a candidate delta configuration.
  • the first RRC signaling includes a CellGroupConfig (cell group configuration) field, and the CellGroupConfig field configures at least one candidate cell.
  • CellGroupConfig cell group configuration
  • the first RRC signaling is used to configure at least one handover candidate cell, and the at least one handover candidate cell includes the second cell.
  • the first RRC signaling is used to configure air interface resources in the at least one handover candidate cell, and the at least one handover candidate cell includes the second cell.
  • the first RRC signaling indicates the second cell.
  • the first RRC signaling includes an identifier of the second cell.
  • the first RRC signaling is used to configure the second cell.
  • the first RRC signaling is used to configure the air interface resources of the second cell.
  • the first RRC signaling is used to configure a unicast RNTI (Radio Network Temporary Identifier) of the first node in the second cell.
  • RNTI Radio Network Temporary Identifier
  • the first RRC signaling is used to configure the C (Cell)-RNTI of the first node in the second cell.
  • the first RRC signaling is used to configure air interface resources for performing a random access process on the second cell.
  • the first RRC signaling is used to configure MAC (Medium Access Control) parameters of at least the second cell.
  • MAC Medium Access Control
  • the first RRC signaling indicates the DRX active time.
  • the first RRC signaling includes a drx-Config (discontinuous reception configuration) field, the drx-Config field configures DRX related parameters, and the DRX active time is indicated by the DRX related parameters.
  • drx-Config discontinuous reception configuration
  • the first RRC signaling configures a DRX on-duration timer (drx-onDurationTimer), including configuring an expiration value of the DRX on-duration timer.
  • the DRX active time includes the time during which the DRX on-duration timer is running.
  • the first RRC signaling configures a DRX inactivity timer (drx-InactivityTimer), including configuring an expiration value of the DRX inactivity timer.
  • a DRX inactivity timer (drx-InactivityTimer)
  • the DRX active time includes the time when the DRX inactive timer is running.
  • the first RRC signaling configures a DRX downlink retransmission timer (drx-RetransmissionTimerDL), including configuring an expiration value of the DRX downlink retransmission timer.
  • drx-RetransmissionTimerDL DRX downlink retransmission timer
  • the DRX active time includes the time when the DRX downlink retransmission timer on any service cell is running.
  • the first RRC signaling configures a DRX uplink retransmission timer (drx-RetransmissionTimerUL), including configuring an expiration value of the DRX uplink retransmission timer.
  • drx-RetransmissionTimerUL DRX uplink retransmission timer
  • the DRX active time includes the time during which the DRX uplink retransmission timer on any serving cell is running.
  • the first RRC signaling configures the DRX long cycle and start offset (drx-LongCycleStartOffset).
  • the first RRC signaling configures a DRX short cycle (drx-ShortCycle).
  • the first RRC signaling configures a DRX short cycle timer (drx-ShortCycleTimer).
  • the first RRC signaling configures a DRX time slot offset (drx-SlotOffset).
  • the DRX on-duration timer is periodically in a running state according to the DRX-related parameters configured by the first RRC signaling.
  • the DRX inactivity timer is started or restarted.
  • a timer is in a running state after it is started or restarted; the timer is updated at each time interval in the running state; when the timer expires, the timer stops being updated at each time interval.
  • the phrase for updating the timer includes: adding 1 to the value of the timer; when the value of the timer is the expiration value of the timer, the timer expires.
  • the value of the timer when starting the timer, is set to the expiration value of the timer, and the phrase for updating the timer includes: reducing the value of the timer by 1; when the value of the timer is 0, the timer expires.
  • the DRX active time includes the time when ra-ContentionResolutionTimer (random access contention resolution timer) or msgB-ResponseWindow (message B response window) is running.
  • the DRX active time includes the time when a scheduling request (Scheduling Request, SR) is sent on PUCCH (Physical Uplink Control Channel) and is pending.
  • SR scheduling request
  • PUCCH Physical Uplink Control Channel
  • the DRX active time includes the time after successfully receiving a random access response, indicating that a newly transmitted PDCCH identified by the C-RNTI has not yet been received; wherein the random access preamble for the random access response is not selected by the MAC entity from contention-based random access preambles.
  • the DRX active time is applied to at least the second cell.
  • the DRX active time is configured for multiple cells, and the second cell is one of the multiple cells.
  • the multiple cells form a DRX group.
  • the DRX active time is applied to the DRX group.
  • the DRX active time being applied to at least the second cell means that: the PDCCH is monitored on at least the second cell during the DRX active time.
  • the first signaling is received on the first cell.
  • the first cell is a primary cell (PCell).
  • PCell primary cell
  • the first cell is a special cell (Special cell, SpCell).
  • the first cell is a source cell.
  • receiving on a cell means: receiving through air interface resources of a cell.
  • sending on a cell means: sending through the air interface resources of a cell.
  • the air interface resources include at least one of time domain resources, frequency domain resources, space domain resources and code domain resources.
  • the first signaling is a lower layer signaling.
  • the first signaling is a protocol layer signaling below the RRC sublayer.
  • the first signaling is physical layer signaling.
  • the first signaling is DCI.
  • the first signaling is MAC (Medium Access Control) sublayer signaling.
  • the first signaling is MAC CE (Control Element).
  • the first signaling is a cell switching signaling.
  • the name of the first signaling includes LTM (L1/L2-triggered mobility).
  • the name of the first signaling includes switch.
  • the first signaling is LTM cell switch.
  • the first signaling indicates switching to the second cell.
  • the first signaling is MAC CE, and the first signaling is identified by a logical channel identity (Logical Channel ID, LCID), and the logical channel identity indicates a cell switching.
  • a logical channel identity Logical Channel ID, LCID
  • the logical channel identity is a positive integer between 35-46, including 35 and 46.
  • the logical channel identity is a positive integer between 0 and 226, including 0 and 226.
  • the first signaling indicates the second cell.
  • the first signaling includes an identifier of the second cell.
  • the first signaling includes a cell identifier, and the cell identifier is used to identify the second cell.
  • the cell identifier is a physical cell identity.
  • the cell identifier is a serving cell index (serving cell index).
  • the cell identifier is a candidate cell index (candidate cell index).
  • the cell identifier is a target cell index (target cell index).
  • the identifier of the second cell included in the first signaling is the same as the identifier of the second cell included in the first RRC signaling.
  • the first cell and the second cell belong to the same gNB (new radio node B)-DU (Distributed Unit).
  • the first cell and the second cell belong to different gNB-DUs.
  • the first cell and the second cell belong to the same gNB-CU (Central Unit).
  • gNB-CU Central Unit
  • the first cell and the second cell belong to different gNB-CUs.
  • the second cell is a service cell of the first node.
  • the first signaling indicates that the special cell and the secondary cell of the first node are swapped; wherein, before receiving the first signaling, the first cell is the SpCell, and the second cell is the Scell.
  • the second cell is not a service cell of the first node.
  • the second cell is a candidate cell for cell switching.
  • the second cell is a target cell (target cell) of cell switching.
  • the first signaling indicates a beam selected for the second cell.
  • the selected beam is used for downlink reception and uplink transmission in the second cell.
  • the first signaling indicates the TCI (Transmission Configuration Indicator) state for the second cell.
  • TCI Transmission Configuration Indicator
  • PDCCH is monitored during the DRX active time on the second cell.
  • the monitoring includes searching.
  • the monitoring includes monitoring.
  • the phrase monitoring PDCCH includes: determining whether PDCCH exists through energy monitoring.
  • the phrase monitoring PDCCH includes: determining whether PDCCH exists through coherent detection.
  • the phrase monitoring PDCCH includes: determining whether PDCCH exists by maximum likelihood detection.
  • the phrase monitoring PDCCH includes: determining whether PDCCH exists through blind decoding detection.
  • the phrase monitoring PDCCH includes: monitoring PDCCH in CSS (Common Search Space).
  • the phrase monitoring PDCCH includes: monitoring PDCCH in USS (UE-specific search space, user equipment dedicated search space).
  • the PDCCH is identified by a unicast RNTI.
  • the unicast RNTI uniquely identifies the first node in the second cell.
  • the PDCCH is C-RNTI, CI (Cancellation Indication, Cancellation Indication)-RNTI, CS (Configured Scheduling, configuration scheduling)-RNTI, INT (Interruption, interruption)-RNTI, SFI (Slot Format Indication, time slot format indication)-RNTI, SP (Semi-Persistent, semi-persistent)-CSI (Channel State Information, channel state information)-RNTI, TPC (Transmit Power Control, transmission power control)-PUCCH (Physical Uplink Control Channel, physical uplink control channel)-RNTI, TPC (Transmit Power Control, transmission power control)-PUSCH (Physical Uplink Shared Channel, physical uplink shared channel)-RNTI, TPC (Transmit Power Control, transmission power control)-SRS (Sounding Reference Signal, sounding reference signal)-RNTI, and AI (Availability indication, available indication)-RNTI. At least one of the following identifiers.
  • the PDCCH is identified by at least one of SL (Sidelink)-RNTI, SLCS (Sidelink Configured Scheduling)-RNTI and Sidelink Semi-Persistent Scheduling (SL Semi-Persistent Scheduling) V (Vehicle-to-Everything)-RNTI.
  • SL Seglink
  • SLCS Seglink Configured Scheduling
  • Sidelink Semi-Persistent Scheduling SL Semi-Persistent Scheduling
  • V Vehicle-to-Everything
  • the DRX active time depends on the first signaling.
  • the DRX active time is related to the first signaling.
  • the DRX active time depends on the time domain resources occupied by the first signaling.
  • the DRX active time depends on the type of the first signaling, and the type of the first signaling includes MAC CE and DCI.
  • the DRX active time depends on the content of the first signaling.
  • the DRX active time depends on whether the first signaling indicates a timing advance value for the second cell.
  • the DRX active time depends on the random access process initiated by the first node in the second cell triggered by the first signaling.
  • the DRX active time depends on the first signaling.
  • the DRX active time depends on the feedback time for the first signaling.
  • the DRX active time depends on the effective time of the first signaling.
  • the start time of the DRX active time depends on the first signaling.
  • the start time of the DRX active time is Q symbols away from the time domain resources occupied by the first signaling.
  • the start time of the DRX active time is Q symbols away from the end time interval of the time domain resources occupied by the first signaling.
  • Q is a positive integer greater than 0.
  • Q is 0.
  • the DRX active time ends when the PDCCH is monitored.
  • Embodiment 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in FIG2.
  • FIG2 illustrates a diagram of a network architecture 200 of a NR 5G, LTE (Long-Term Evolution) and LTE-A (Long-Term Evolution Advanced) system.
  • the NR 5G, LTE or LTE-A network architecture 200 may be referred to as 5GS (5G System)/EPS (Evolved Packet System) 200 or some other suitable term.
  • 5GS 5G System
  • EPS Evolved Packet System
  • 5GS/EPS 200 may include one or more UE (User Equipment) 201, NG-RAN (Next Generation Radio Access Network) 202, 5GC (5G Core Network)/EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server)/UDM (Unified Data Management) 220, and Internet Service 230.
  • 5GS/EPS may be interconnected with other access networks, but these entities/interfaces are not shown for simplicity. As shown, 5GS/EPS provides packet switching services, but technicians in the field will readily understand that the various concepts presented throughout this application can be extended to networks that provide circuit switching services or other cellular networks.
  • NG-RAN includes NR Node B (gNB) 203 and other gNBs 204.
  • gNB 203 provides user and control plane protocol terminations toward UE 201.
  • gNB 203 can be connected to other gNBs 204 via an Xn interface (e.g., backhaul).
  • gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a TRP (Transmission Reception Point), or some other suitable term.
  • BSS basic service set
  • ESS extended service set
  • TRP Transmission Reception Point
  • gNB203 may be a satellite, an aircraft, or a ground base station relayed by a satellite.
  • gNB203 provides UE201 with access to 5GC/EPC210. Access point.
  • Examples of UE 201 include cellular phones, smart phones, Session Initiation Protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband Internet of Things devices, machine type communication devices, land vehicles, cars, vehicle-mounted devices, vehicle-mounted communication units, wearable devices, or any other similar functional devices.
  • SIP Session Initiation Protocol
  • PDAs personal digital assistants
  • satellite radios global positioning systems
  • multimedia devices video devices
  • digital audio players e.g., MP3 players
  • cameras e.g., MP3 players
  • game consoles e.g., drones, aircraft, narrowband Internet of Things devices, machine type communication devices, land vehicles, cars, vehicle-mounted devices, vehicle-mounted communication units, wearable devices, or any other similar functional devices.
  • UE 201 may also refer to UE 201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable term.
  • gNB203 is connected to 5GC/EPC210 via the S1/NG interface.
  • 5GC/EPC210 includes MME (Mobility Management Entity)/AMF (Authentication Management Field)/SMF (Session Management Function) 211, other MME/AMF/SMF214, S-GW (Service Gateway)/UPF (User Plane Function) 212, and P-GW (Packet Data Network Gateway)/UPF213.
  • MME/AMF/SMF211 is the control node that handles signaling between UE201 and 5GC/EPC210.
  • MME/AMF/SMF211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through S-GW/UPF212, which itself is connected to P-GW/UPF213.
  • P-GW provides UE IP address allocation and other functions.
  • P-GW/UPF213 is connected to Internet service 230.
  • Internet service 230 includes operator-corresponding Internet protocol services, which may specifically include Internet, Intranet, IMS (IP Multimedia Subsystem) and PS (Packet Switching) streaming services.
  • the UE201 corresponds to the first node in this application.
  • the NR node B203 corresponds to the second node in this application.
  • the NR node B203 corresponds to the third node in this application.
  • the other NR node B204 corresponds to the third node in this application.
  • the UE 201 is a terminal supporting LTM.
  • the UE201 is a terminal supporting DRX.
  • the gNB203 is a macro cell (Marco Cell) base station.
  • the gNB203 is a micro cell base station.
  • the gNB203 is a pico cell base station.
  • the gNB203 is a home base station (Femtocell).
  • the gNB203 is a base station device that supports large delay difference.
  • the gNB203 is a flying platform device.
  • the gNB203 is a satellite device.
  • the gNB203 is a testing device (e.g., a transceiver that simulates some functions of a base station, a signaling tester).
  • a testing device e.g., a transceiver that simulates some functions of a base station, a signaling tester.
  • the gNB204 is a macro cell (Marco Cell) base station.
  • the gNB204 is a micro cell base station.
  • the gNB204 is a pico cell base station.
  • the gNB204 is a home base station (Femtocell).
  • the gNB204 is a base station device that supports large delay difference.
  • the gNB204 is a flying platform device.
  • the gNB204 is a satellite device.
  • the gNB204 is a testing device (e.g., a transceiver that simulates some functions of a base station, a signaling tester).
  • a testing device e.g., a transceiver that simulates some functions of a base station, a signaling tester.
  • the wireless link from the UE201 to the gNB203/the gNB204 is an uplink, and the uplink is used to perform uplink transmission.
  • the wireless link from the gNB203/the gNB204 to the UE201 is a downlink, and the downlink is used to perform downlink transmission.
  • the UE201 and the gNB203/the gNB204 are respectively connected via a Uu interface.
  • Embodiment 3 illustrates a schematic diagram of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application, as shown in FIG.
  • FIG3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300
  • FIG3 shows the radio protocol architecture of the control plane 300 of the UE and the gNB in three layers: layer 1, layer 2, and layer 3.
  • Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions.
  • the L1 layer will be referred to as PHY301 herein.
  • Layer 2 (L2 layer) 305 is above PHY301 and is responsible for the link between the UE and the gNB through PHY301.
  • the L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the gNB on the network side.
  • the PDCP sublayer 304 provides data encryption and integrity protection, and the PDCP sublayer 304 also provides support for inter-zone mobility of the UE between gNBs.
  • the RLC sublayer 303 provides segmentation and reassembly of data packets, and retransmission of lost data packets is achieved through ARQ.
  • the RLC sublayer 303 also provides duplicate data packet detection and protocol error detection.
  • the MAC sublayer 302 provides mapping between logical and transport channels and multiplexing of logical channel identities.
  • the MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in a cell between UEs.
  • the MAC sublayer 302 is also responsible for HARQ (Hybrid Automatic Repeat Request) operations.
  • the RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling between the gNB and the UE.
  • a V2X layer may also be provided above the RRC sublayer 306 in the control plane 300 of the UE.
  • the V2X layer is responsible for generating a PC5 QoS parameter group and QoS rules based on the received service data or service request, generating a PC5 QoS flow corresponding to the PC5 QoS parameter group, and sending the PC5 QoS flow identifier and the corresponding PC5 QoS parameter group to the AS (Access Stratum) layer for the AS layer to perform QoS processing on the data packets belonging to the PC5 QoS flow identifier; the V2X layer also includes a PC5-S signaling protocol (PC5-Signaling Protocol) sublayer, and the V2X layer is responsible for indicating to the AS layer whether each transmission is a PC5-S transmission or a V2X service data transmission.
  • PC5-Signaling Protocol PC5-Signaling Protocol
  • the wireless protocol architecture of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer).
  • the wireless protocol architecture in the user plane 350 is substantially the same as the corresponding layers and sublayers in the control plane 300 for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355, but the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce wireless transmission overhead.
  • the L2 layer 355 in the user plane 350 also includes a SDAP (Service Data Adaptation Protocol) sublayer 356, which is responsible for mapping between QoS (Quality of Service) flows and data radio bearers (DRBs) to support the diversity of services.
  • SDAP Service Data Adaptation Protocol
  • the wireless protocol architecture of the UE in the user plane 350 may include, at the L2 layer, a SDAP sublayer 356, a PDCP sublayer 354, a portion of or all of the protocol sublayers of the RLC sublayer 353 and the MAC sublayer 352.
  • the UE may also have several upper layers above the L2 layer 355, including a network layer (e.g., an IP layer) terminated at the P-GW on the network side and an application layer terminated at the other end of the connection (e.g., a remote UE, a server, etc.).
  • a network layer e.g., an IP layer
  • an application layer terminated at the other end of the connection
  • the wireless protocol architecture in FIG. 3 is applicable to the first node in the present application.
  • the wireless protocol architecture in FIG. 3 is applicable to the second node in the present application.
  • the wireless protocol architecture in FIG. 3 is applicable to the third node in the present application.
  • the first RRC signaling in the present application is generated in the RRC306.
  • the first signaling in the present application is generated by the MAC302 or the MAC352.
  • the first signaling in the present application is generated in the PHY301 or the PHY351.
  • the second signaling in the present application is generated in the PHY301 or the PHY351.
  • the third signaling in the present application is generated in the PHY301 or the PHY351.
  • the second RRC signaling in the present application is generated in the RRC306.
  • the L2 layer 305 or 355 belongs to a higher layer.
  • the RRC sublayer 306 in the L3 layer belongs to a higher layer.
  • Embodiment 4 illustrates a hardware module schematic diagram of a communication device according to an embodiment of the present application, as shown in FIG4.
  • FIG4 is a block diagram of a first communication device 450 and a second communication device 410 communicating with each other in an access network.
  • the first communication device 450 includes a controller/processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, a multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter/receiver 454 and an antenna 452.
  • the second communication device 410 includes a controller/processor 475, a memory 476, a data source 477, a receive processor 470, a transmit processor 416, a multi-antenna receive processor 472, a multi-antenna transmit processor 471, a transmitter/receiver 418 and an antenna 420.
  • the controller/processor 475 In the transmission from the second communication device 410 to the first communication device 450, at the second communication device 410, the The upper layer data packets of the core network or the upper layer data packets from the data source 477 are provided to the controller/processor 475.
  • the core network and the data source 477 represent all the protocol layers above the L2 layer.
  • the controller/processor 475 implements the functionality of the L2 layer.
  • the controller/processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and wireless resource allocation to the first communication device 450 based on various priority metrics.
  • the controller/processor 475 is also responsible for the retransmission of lost packets and signaling to the first communication device 450.
  • the transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer).
  • the transmit processor 416 implements coding and interleaving to facilitate forward error correction (FEC) at the second communication device 410, as well as mapping of signal constellations based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)).
  • FEC forward error correction
  • the multi-antenna transmit processor 471 performs digital spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing on the coded and modulated symbols to generate one or more spatial streams.
  • the transmit processor 416 maps each spatial stream to a subcarrier, multiplexes it with a reference signal (e.g., a pilot) in the time domain and/or frequency domain, and then uses an inverse fast Fourier transform (IFFT) to generate a physical channel carrying a time-domain multi-carrier symbol stream.
  • IFFT inverse fast Fourier transform
  • the multi-antenna transmit processor 471 then performs a transmit analog precoding/beamforming operation on the time-domain multi-carrier symbol stream.
  • Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream, and then provides it to a different antenna 420.
  • each receiver 454 receives a signal through its corresponding antenna 452.
  • Each receiver 454 recovers the information modulated onto the RF carrier and converts the RF stream into a baseband multi-carrier symbol stream and provides it to the receiving processor 456.
  • the receiving processor 456 and the multi-antenna receiving processor 458 implement various signal processing functions of the L1 layer.
  • the multi-antenna receiving processor 458 performs a receiving analog precoding/beamforming operation on the baseband multi-carrier symbol stream from the receiver 454.
  • the receiving processor 456 uses a fast Fourier transform (FFT) to convert the baseband multi-carrier symbol stream after the receiving analog precoding/beamforming operation from the time domain to the frequency domain.
  • FFT fast Fourier transform
  • the physical layer data signal and the reference signal are demultiplexed by the receiving processor 456, wherein the reference signal will be used for channel estimation, and the data signal is recovered after multi-antenna detection in the multi-antenna receiving processor 458 to any spatial stream destined for the first communication device 450.
  • the symbols on each spatial stream are demodulated and recovered in the receiving processor 456, and soft decisions are generated.
  • the receiving processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the second communication device 410 on the physical channel.
  • the upper layer data and control signals are then provided to the controller/processor 459.
  • the controller/processor 459 implements the functions of the L2 layer.
  • the controller/processor 459 may be associated with a memory 460 that stores program codes and data.
  • the memory 460 may be referred to as a computer-readable medium.
  • the controller/processor 459 provides multiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover the upper layer data packets from the second communication device 410.
  • the upper layer data packets are then provided to all protocol layers above the L2 layer.
  • Various control signals may also be provided to the L3 for L3 processing.
  • the upper layer data packets are provided to the controller/processor 459 using the data source 467.
  • the data source 467 represents all the protocol layers above the L2 layer.
  • the controller/processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels, and implements L2 layer functions for user plane and control plane.
  • the controller/processor 459 is also responsible for the retransmission of lost packets and signaling to the second communication device 410.
  • the transmit processor 468 performs modulation mapping and channel coding processing, and the multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing. Then, the transmit processor 468 modulates the generated spatial stream into a multi-carrier/single-carrier symbol stream, which is then provided to different antennas 452 via the transmitter 454 after analog precoding/beamforming operations in the multi-antenna transmit processor 457. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream, and then provides it to the antenna 452.
  • the functions at the second communication device 410 are similar to the reception functions at the first communication device 450 described in the transmission from the second communication device 410 to the first communication device 450.
  • Each receiver 418 receives a radio frequency signal through its corresponding antenna 420, converts the received radio frequency signal into a baseband signal, and provides the baseband signal to the multi-antenna reception processor 472 and the reception processor 470.
  • the reception processor 470 and the multi-antenna reception processor 472 jointly implement the functions of the L1 layer.
  • the controller/processor 475 implements the L2 layer functions.
  • the controller/processor 475 can be associated with a memory 476 that stores program codes and data.
  • the memory 476 can be referred to as a computer-readable medium.
  • the controller/processor 475 provides multiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover the upper layer data packets from the first communication device 450.
  • the upper layer data packets from the controller/processor 475 may be provided to the core network or all protocol layers above the L2 layer, and various control signals may also be provided to the core network or L3 for L3 processing.
  • the first communication device 450 apparatus includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor, and the first communication device 450 apparatus at least: receives a first RRC signaling, the first RRC signaling indicates a DRX active time, and the DRX active time is applied to at least a second cell; receives a first signaling on a first cell, the first signaling indicates a switch to the second cell; monitors PDCCH within the DRX active time on the second cell; wherein the DRX active time depends on the first signaling; the first signaling is a lower layer signaling.
  • the first communication device 450 apparatus includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates actions when executed by at least one processor, and the actions include: receiving a first RRC signaling, wherein the first RRC signaling indicates a DRX active time, and the DRX active time is applied to at least a second cell; receiving a first signaling on a first cell, wherein the first signaling indicates a switch to the second cell; monitoring PDCCH within the DRX active time on the second cell; wherein the DRX active time depends on the first signaling; and the first signaling is a lower layer signaling.
  • the second communication device 410 device includes: at least one processor and at least one memory, the at least one memory includes computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor.
  • the second communication device 410 device at least: sends a first RRC signaling, the first RRC signaling indicates a DRX active time, the DRX active time is applied to at least a second cell; sends a first signaling on the first cell, the first signaling indicates a switch to the second cell; wherein the PDCCH is monitored during the DRX active time on the second cell; the DRX active time depends on the first signaling; the first signaling is a lower layer signaling.
  • the second communication device 410 apparatus includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates actions when executed by at least one processor, and the actions include: sending a first RRC signaling, wherein the first RRC signaling indicates a DRX active time, and the DRX active time is applied to at least a second cell; sending a first signaling on the first cell, wherein the first signaling indicates a switch to the second cell; wherein the PDCCH is monitored during the DRX active time on the second cell; the DRX active time depends on the first signaling; and the first signaling is a lower layer signaling.
  • the second communication device 410 device includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor.
  • the second communication device 410 device at least: receives a first random access preamble on a second cell; wherein the first random access preamble is used to determine a timing advance value for the second cell; wherein a first RRC signaling is received, the first RRC signaling indicates a DRX active time, and the DRX active time is applied to at least the second cell; a first signaling is received on the first cell, the first signaling indicates a switch to the second cell; PDCCH is monitored during the DRX active time on the second cell; the DRX active time depends on the first signaling; the first signaling is a lower layer signaling; a third signaling is received before the first signaling is received, and the third signaling is used to trigger the sending of the first random access preamble.
  • the second communication device 410 apparatus includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates actions when executed by at least one processor, and the actions include: receiving a first random access preamble on a second cell; wherein the first random access preamble is used to determine a timing advance value for the second cell; wherein a first RRC signaling is received, the first RRC signaling indicates a DRX active time, and the DRX active time is applied to at least the second cell; a first signaling is received on the first cell, the first signaling indicates a switch to the second cell; PDCCH is monitored during the DRX active time on the second cell; the DRX active time depends on the first signaling; the first signaling is a lower layer signaling; a third signaling is received before the first signaling is received, and the third signaling is used to trigger the sending of the first random access preamble.
  • the first communication device 450 corresponds to the first node in the present application
  • the second communication device 410 corresponds to the second node in the present application.
  • the first communication device 450 corresponds to the first node in the present application
  • the second communication device 410 corresponds to the third node in the present application.
  • the first communication device 450 is a UE.
  • the first communication device 450 is a relay.
  • the second communication device 410 is a base station device.
  • the second communication device 410 is a distribution unit of a base station.
  • At least one of the antenna 452, the receiver 454, the multi-antenna reception processor 458, the reception processor 456 or the controller/processor 459 is used to receive the first RRC signaling in the present application.
  • At least one of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416 or the controller/processor 475 is used to send the first signaling in the present application.
  • At least one of the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456 or the controller/processor 459 is used to receive the first signaling in the present application.
  • At least one of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468 or the controller/processor 459 is used to send the second signaling in the present application.
  • At least one of the antenna 420, the receiver 418, the multi-antenna receiving processor 472, the receiving processor 470 or the controller/processor 475 is used to receive the second signaling in the present application.
  • At least one of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416 or the controller/processor 475 is used to send the third signaling in the present application.
  • At least one of the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456 or the controller/processor 459 is used to receive the third signaling in the present application.
  • At least one of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468 or the controller/processor 459 is used to send the second RRC signaling in the present application.
  • At least one of the antenna 420, the receiver 418, the multi-antenna reception processor 472, the reception processor 470 or the controller/processor 475 is used to receive the second RRC signaling in the present application.
  • Embodiment 5 illustrates a wireless signal transmission flow chart according to an embodiment of the present application, as shown in FIG5.
  • the first node N51 and the second node N52 communicate through a wireless interface
  • the first node N51 and the third node N53 communicate through a wireless interface. It is particularly noted that the order in this example does not limit the signal transmission order and implementation order in the present application.
  • the first RRC signaling is received in step S511; the third signaling is received in step S512; the first random access preamble is sent in step S513; the first signaling is received in step S514; the second signaling is sent in step S515; the PDCCH is received in step S516; and the second RRC signaling is sent in step S517.
  • the first RRC signaling is sent in step S521; the third signaling is sent in step S522; the first signaling is sent in step S523; and the second signaling is received in step S524.
  • a first random access preamble is received in step S531; a PDCCH is sent in step S532; and a second RRC signaling is received in step S533.
  • a first RRC signaling is received, the first RRC signaling indicates a DRX active time, and the DRX active time is applied to at least a second cell; a first signaling is received on a first cell, the first signaling indicates a switch to the second cell; a PDCCH is monitored during the DRX active time on the second cell; wherein the DRX active time depends on the first signaling; the first signaling is a lower layer signaling; a second signaling is sent on the first cell, the second signaling indicates that the first signaling is correctly received; a second RRC signaling is sent on the second cell, the second RRC signaling indicates that the RRC reconfiguration is completed; wherein the PDCCH is monitored, and the PDCCH indicates the time-frequency resources occupied by the second RRC signaling; the first signaling indicates a timing advance value for the second cell; the first signaling does not trigger the sending of a random access preamble on the second cell; a third signaling is received before receiving the first signaling; as
  • the first node N51 and the second node N52 are transmitted via at least the first cell; the first node N51 and the third node N53 are transmitted via the second cell.
  • the second node N52 and the third node N53 are co-located.
  • the second node N52 and the third node N53 are the same node.
  • the second node N52 and the third node N53 are the same gNB-DU.
  • the second node N52 and the third node N53 are the same transceiver point (Transmit/Receive Point, TRP).
  • the second node N52 and the third node N53 are different nodes.
  • the second node N52 and the third node N53 are different gNB-DUs.
  • the second node N52 and the third node N53 are different gNB-CUs.
  • the second node N52 is a base station of the first cell.
  • the second node N52 is the transceiver point of the first cell.
  • the third node N53 is a base station of the second cell.
  • the third node N53 is the transceiver point of the second cell.
  • the second node N52 is the base station of the service cell of the first node N51 before the cell switching.
  • the third node N53 is a base station of a service cell after the cell switching of the first node N51.
  • the second node N52 before cell switching, is a service base station for a special cell of the first node, and the third node N53 is a service base station for a secondary cell (SCell) of the first node; after cell switching, the second node N52 is a service base station for the secondary cell of the first node, and the third node N53 is a service base station for the special cell of the first node.
  • SCell secondary cell
  • the first cell before cell switching, the first cell is a special cell of the first node N51, and the second cell is a secondary cell of the first node N51; after cell switching, the first cell is a secondary cell of the first node N51, and the second cell is a special cell of the first node N51.
  • the third signaling is received before receiving the first signaling.
  • the third signaling is received on a service cell of the first node.
  • the third signaling is received on the first cell.
  • the third signaling is a protocol layer signaling below the RRC sublayer.
  • the third signaling is physical layer signaling.
  • the third signaling is DCI.
  • the third signaling is PDCCH (Physical Downlink Control CHannel) order.
  • the third signaling is an enhanced PDCCH order.
  • the third signaling indicates the second cell.
  • the third signaling includes a cell identifier, and the cell identifier is used to identify the second cell.
  • a first random access (RA) preamble is sent on the second cell.
  • the third signaling indicates the first random access preamble.
  • the third signaling indicates the air interface resources for sending the first random access preamble on the second cell.
  • the third signaling indicates the occasion of sending the RACH (Random Access CHannel) of the first random access preamble on the second cell.
  • the third signaling indicates the SS (Synchronization Signals)/PBCH (Physical Broadcast Channel) index used to determine the RACH timing on the second cell.
  • SS Synchronization Signals
  • PBCH Physical Broadcast Channel
  • the third signaling indicates an uplink carrier used to send PRACH (Physical Random Access CHannel) on the second cell, and the uplink carrier includes NUL (Normal UpLink) and SUL (Supplementary UpLink).
  • PRACH Physical Random Access CHannel
  • NUL Normal UpLink
  • SUL Simple UpLink
  • the third signaling indicates that the first random access preamble is based on non-contention (contention-free).
  • the first random access preamble is a signature sequence.
  • the first random access preamble is a Gold sequence.
  • the first random access preamble is an M sequence.
  • the first random access preamble is a ZC (Zadoff–Chu) sequence.
  • the first node is configured or indicated that there is no corresponding random access response for the first random access preamble (Random Access Response, RAR).
  • RAR Random Access Response
  • the first node is configured or instructed not to open a random access response window after sending the first random access preamble.
  • the first random access preamble does not belong to a random access process.
  • the first random access preamble is used to determine a timing advance value (Timing Advance Value) for the second cell.
  • Timing Advance Value a timing advance value for the second cell.
  • the first signaling indicates the timing advance value for the second cell.
  • the first signaling indicates the timing advance value for at least the second cell.
  • the timing advance value is for multiple cells, and the multiple cells include the second cell.
  • the multiple cells belong to the same TAG (Timing Advance Group).
  • the timing advance value is applied to the cells included in the TAG.
  • the first signaling implicitly indicates the timing advance value for the second cell.
  • the first signaling indicates that the timing advance value for the second cell is the same as the timing advance value for the source cell.
  • the source cell is the first cell.
  • the source cell is a serving cell of the first node.
  • the timing advance value indicated by the first signaling for the second cell is the same as the timing advance value of the cell included in the STAG (Secondary Timing Advance Group).
  • the timing advance value indicated by the first signaling for the second cell is the same as the timing advance value of the cell included in the PTAG (Primary Timing Advance Group).
  • the first signaling explicitly indicates the timing advance value for the second cell.
  • the first signaling includes the timing advance value for the second cell.
  • the first signaling includes a TA (Timing Advance) field, and the TA field indicates the timing advance value for the second cell.
  • TA Timing Advance
  • the timing advance value is 0.
  • the timing advance value is not 0.
  • the first cell and the second cell belong to different TAGs.
  • the first cell and the second cell belong to the same TAG.
  • the timing advance value for the second cell indicated by the first signaling is used to maintain uplink time alignment (Uplink Time Alignment) with the second cell.
  • the first node after receiving and applying the timing advance value for the second cell, the first node considers that the uplink time is aligned with the second cell.
  • a second signaling is sent on the first cell, wherein the second signaling indicates that the first signaling is correctly received.
  • the second signaling is physical layer signaling.
  • the second signaling is HARQ (Hybrid Automatic Repeat Request)-ACK (ACKnowledgement) feedback.
  • HARQ Hybrid Automatic Repeat Request
  • ACKnowledgement ACKnowledgement
  • the second signaling is ACK.
  • the second signaling is feedback on the correct reception of a transport block (TB), and the transport block includes the first signaling.
  • the second signaling is feedback on the correct reception of a MAC PDU (Protocol Data Unit), the one MAC PDU includes at least one MAC subPDU (sub-protocol data unit), and the at least one MAC subPDU includes the first signaling.
  • a MAC PDU Protocol Data Unit
  • the one MAC PDU includes at least one MAC subPDU (sub-protocol data unit)
  • the at least one MAC subPDU includes the first signaling.
  • the first node disconnects from the first cell.
  • the disconnection from the first cell includes: stopping monitoring the PDCCH on the first cell.
  • the disconnection from the first cell includes: stopping sending an uplink channel or an uplink signal on the first cell, the uplink channel includes a PUCCH and a PUSCH, and the uplink signal includes an SRS (Sounding Reference Signal, test signal).
  • the uplink channel includes a PUCCH and a PUSCH
  • the uplink signal includes an SRS (Sounding Reference Signal, test signal).
  • the disconnection from the first cell includes: the RRC configuration for the first cell is stopped from being applied.
  • the first signaling does not trigger sending of a random access preamble on the second cell during a cell switching process.
  • the first signaling does not trigger initiation of a random access process on the second cell during cell switching.
  • the first node monitors the PDCCH during the DRX active time on the second cell.
  • the PDCCH is monitored on the second cell.
  • the PDCCH indicates a new transmission.
  • the PDCCH schedules downlink transmission.
  • the PDCCH schedules PDSCH (Physical Downlink Shared CHannel) reception.
  • PDSCH Physical Downlink Shared CHannel
  • the PDCCH schedules uplink transmission.
  • the PDCCH schedules PUSCH transmission.
  • the PDCCH indicates the time-frequency resources occupied by the second RRC signaling, and the second RRC signaling indicates that the RRC reconfiguration is completed.
  • the PDCCH indicates that the cell switching is successful.
  • the first node when receiving the PDCCH, determines that the cell switching is successful.
  • the PDCCH indicates time-frequency resources used for new transmission.
  • the NDI New Data Indication
  • the NDI New Data Indication
  • the HARQ Hybrid Automatic Repeat Request
  • process ID the HARQ process number included in the PDCCH is the same as the HARQ process number included in the DCI signaling most recently received before receiving the PDCCH.
  • the NDI included in the DCI signaling most recently received before receiving the PDCCH is 0, and the NDI included in the PDCCH is 1, indicating that the NDI included in the PDCCH is inverted.
  • the NDI included in the DCI signaling most recently received before receiving the PDCCH is 1, and the NDI included in the PDCCH is 0, indicating that the NDI included in the PDCCH is inverted.
  • the PDCCH when the PDCCH indicates that SPS (Semi-Persistent Scheduling) is activated, the PDCCH is used to schedule a new transmission.
  • SPS Semi-Persistent Scheduling
  • the PDCCH when the PDCCH indicates multicast SPS activation, the PDCCH is used to schedule a new transmission.
  • the PDCCH when the PDCCH indicates that configuration grant type 2 is activated, the PDCCH is used to schedule a new transmission.
  • the second DCCH is used to schedule a new transmission.
  • the first transmission for a transport block (TB) is a new transmission.
  • the second RRC signaling is sent on the second cell.
  • the second RRC signaling is sent on the time-frequency resources indicated by the PDCCH.
  • the second RRC signaling is RRCReconfigurationComplete (RRC reconfiguration completed).
  • the second RRC signaling is used to respond to the first RRC signaling.
  • the second RRC signaling indicates that the cell switching is successful.
  • the third node N53 determines that the cell switching is successful.
  • the PDCCH is the first PDCCH received on the second cell.
  • the second RRC signaling is included in the first uplink MAC PDU scheduled by the PDCCH.
  • the first transmitter sends a second RRC signaling on the second cell, and the second RRC signaling indicates that the RRC reconfiguration is completed; wherein the first RRC signaling configures the air interface resources for sending the second RRC signaling.
  • the air interface resources occupied by the second RRC signaling are configured grant (CG).
  • Embodiment 6 illustrates a signal transmission flow chart in a backhaul network according to an embodiment of the present application, as shown in FIG6.
  • the second node N62 and the third node N63 communicate through a backhaul network.
  • the first message is received in step S621, and the second message is sent in step S622.
  • a first message is sent in step S631, and a second message is received in step S632.
  • Embodiment 6 illustrates a scenario where the second node N62 and the third node N63 are connected via a backhaul network. Embodiment 6 does not exclude a scenario where the second node N62 and the third node N63 are connected via other interfaces, including but not limited to internal interfaces.
  • the second node N62 is a serving base station of the first cell
  • the third node N63 is a serving base station of the second cell.
  • the second node N62 is the gNB-DU of the source cell in the cell switching
  • the third node N63 is the gNB-DU of the target cell in the cell switching
  • the target cell is the second cell
  • the source cell includes the first cell.
  • the second node N62 and the third node N63 can be directly connected or interconnected through a gNB-CU.
  • the third node N63 sends the configuration of the second cell to the second node N62, and the second node N62 sends at least part of the configuration of the second cell to the first node through the first RRC signaling.
  • the configuration of the second cell includes monitoring the USS of the PDCCH.
  • the configuration of the second cell includes monitoring the CSS of the PDCCH.
  • the configuration of the second cell includes the first random access preamble.
  • the configuration of the second cell includes sending air interface resources for the first random access preamble on the second cell.
  • the third signaling triggers the sending of the first random access preamble on the second cell, and the first random access preamble is used by the third node N63 to determine the timing advance value for the second cell; the third node N63 sends a first message to the second node N62, and the first message includes the timing advance value for the second cell.
  • the second node N62 indicates the timing advance value for the second cell through the first signaling so that the first node obtains uplink time alignment with the second cell.
  • the second node N62 sends the first signaling to indicate cell switching; and the second node N62 sends a second message to the third node N63 after sending the first signaling.
  • the second message indicates that the cell is switched to the second cell.
  • the second message indicates that uplink and downlink transmission can be performed through the second cell.
  • the second message indicates that the second cell sends the PDCCH.
  • the second message indicates the beam selected for the second cell.
  • the second message indicates that the PDCCH is sent through a beam selected for the second cell.
  • the second message indicates that the second RRC signaling is received through the beam selected for the second cell.
  • the first message and the second message are both backhaul network interface messages, wherein the second node N62 and the third node N63 are connected via a backhaul network.
  • the first message and the second message are both internal messages, wherein the second node N62 and the third node N63 are connected via an internal interface.
  • Embodiment 7 illustrates a schematic diagram of DRX active time according to an embodiment of the present application, as shown in FIG7 .
  • the DRX active time starts from receiving the first signaling.
  • receiving the first signaling includes: the end time of the time domain resources occupied by the first signaling.
  • receiving the first signaling includes: the end time of the symbol where the time domain resources occupied by the first signaling are located.
  • receiving the first signaling includes: the end time of the time slot where the time domain resources occupied by the first signaling are located.
  • receiving the first signaling includes: the end time of the subframe where the time domain resources occupied by the first signaling are located.
  • the DRX active time starts from the first symbol after receiving the first signaling.
  • the DRX active time starts from the first time slot after receiving the first signaling.
  • the DRX active time starts from the first subframe after receiving the first signaling.
  • the DRX active time starts from the first downlink symbol after receiving the first signaling.
  • the DRX active time ends when the PDCCH is received.
  • the DRX active time is the time between receiving the first signaling and receiving the PDCCH.
  • the DRX active time is the time from the first downlink symbol after receiving the first signaling to the time when the PDCCH is received.
  • Embodiment 7 illustrates that the DRX active time is the time between receiving the first signaling and receiving the PDCCH.
  • Embodiment 8 illustrates a schematic diagram of DRX active time according to an embodiment of the present application, as shown in FIG8 .
  • the DRX active time starts from the completion of sending the second signaling.
  • the DRX active time starts from the first symbol after the second signaling is sent.
  • the DRX active time starts from the first time slot after the second signaling is sent.
  • the DRX active time starts from the first subframe after the second signaling is sent.
  • the DRX active time starts from the first downlink symbol after the second signaling is sent.
  • the DRX active time is the time between sending the second signaling and receiving the PDCCH.
  • the DRX active time is the time from the first downlink symbol after the second signaling is sent to the time when the PDCCH is received.
  • the sending time of the second signaling depends on the first signaling.
  • the sending time of the second signaling is indicated by the PDCCH that schedules the first signaling.
  • the distance between the sending time of the second signaling and the receiving time of the first signaling is indicated by the PDCCH that schedules the first signaling.
  • Embodiment 8 illustrates that the DRX active time is the time between sending the second signaling and receiving the PDCCH.
  • Embodiment 9 illustrates a schematic diagram of DRX active time according to an embodiment of the present application, as shown in FIG9 .
  • the first signaling indicates that the configuration of the second cell is applied.
  • the first signaling implicitly indicates that the configuration of the second cell is applied.
  • the configuration of the second cell being applied includes: the configuration of the second cell replacing the current configuration of the first node.
  • the configuration of the second cell is applied including: performing RRC reconfiguration using the configuration of the second cell.
  • the configuration of the second cell is applied to include: performing RRC reconfiguration using the configuration of the second cell, and not performing L2 (Layer 2) reset.
  • the time when the configuration of the second cell is applied is determined by the UE itself.
  • the time when the configuration of the second cell is applied is determined according to the UE capability.
  • the time interval between the application of the configuration of the second cell and the reception of the first signaling is no more than Q1 symbols; wherein Q1 is a non-negative integer.
  • the DRX active time starts from when the configuration of the second cell is applied.
  • the DRX active time is the time from when the configuration of the second cell is applied to when the PDCCH is received.
  • Embodiment 9 illustrates that the DRX active time is the time between the application of the configuration of the second cell and the reception of the PDCCH.
  • Embodiment 11 illustrates a structural block diagram of a processing device in a first node according to an embodiment of the present application, as shown in FIG10.
  • a first node processing device 1000 includes a first receiver 1001 and a first transmitter 1002; the first node 1000 is a UE.
  • a first receiver 1001 receives a first RRC signaling, wherein the first RRC signaling indicates a DRX active time, and the DRX active time is applied to at least a second cell; receives a first signaling on a first cell, wherein the first signaling indicates a switch to the second cell; monitors PDCCH during the DRX active time on the second cell; wherein the DRX active time depends on the first signaling; and the first signaling is a lower layer signaling.
  • the DRX active time being dependent on the first signaling includes: the DRX active time starts from receiving the first signaling.
  • the first transmitter 1002 sends a second signaling on the first cell, and the second signaling indicates correct reception of the first signaling; wherein the DRX active time depends on the first signaling, including: the DRX active time starts from the completion of sending the second signaling.
  • the DRX active time depends on the first signaling, including: the DRX active time starts from the application of the configuration of the second cell; wherein the first signaling indicates that the configuration of the second cell is applied.
  • the first transmitter 1002 sends a second RRC signaling on the second cell, wherein the second RRC signaling indicates that the RRC reconfiguration is completed; wherein the PDCCH is monitored, and the PDCCH indicates the time-frequency resources occupied by the second RRC signaling.
  • the first signaling indicates a timing advance value for the second cell; the first signaling does not trigger sending a random access preamble on the second cell.
  • the first signaling indicates a timing advance value for the second cell; the first receiver 1001 receives a third signaling before receiving the first signaling; the first transmitter 1002 sends a first random access preamble on the second cell in response to receiving the third signaling; wherein the first random access preamble is used to determine the timing advance value for the second cell.
  • the first receiver 1001 includes the receiver 454 (including the antenna 452), the receiving processor 456, the multi-antenna receiving processor 458 and the controller/processor 459 in FIG. 4 of the present application.
  • the first receiver 1001 includes at least one of the receiver 454 (including the antenna 452), the receiving processor 456, the multi-antenna receiving processor 458 or the controller/processor 459 in FIG. 4 of the present application.
  • the first transmitter 1002 includes the transmitter 454 (including the antenna 452), the transmission processor 468, the multi-antenna transmission processor 457 and the controller/processor 459 in FIG. 4 of the present application.
  • the first transmitter 1002 includes at least one of the transmitter 454 (including the antenna 452), the transmit processor 468, the multi-antenna transmit processor 457 or the controller/processor 459 in FIG. 4 of the present application.
  • Embodiment 11 illustrates a structural block diagram of a processing device in a second node according to an embodiment of the present application, as shown in FIG11.
  • a second node processing device 1100 includes a second receiver 1101 and a second transmitter 1102; the second node 1100 is a base station or a gNB-DU.
  • a second transmitter sends a first RRC signaling, wherein the first RRC signaling indicates a DRX active time, and the DRX active time is applied to at least a second cell; a first signaling is sent on a first cell, wherein the first signaling indicates a switch to the second cell; wherein PDCCH is monitored during the DRX active time on the second cell; the DRX active time depends on the first signaling; and the first signaling is a lower layer signaling.
  • the DRX active time depends on the first signaling, including: the DRX active time starts from when the first signaling is received.
  • the second receiver 1101 receives a second signaling on the first cell, wherein the second signaling indicates that the first signaling is correctly received; wherein the DRX active time depends on the first signaling, including: the DRX active time starts from when the second signaling is sent.
  • the DRX active time depends on the first signaling, including: the DRX active time starts from the application of the configuration of the second cell; wherein the first signaling indicates that the configuration of the second cell is applied.
  • the first signaling indicates a timing advance value for the second cell; the first signaling does not trigger sending a random access preamble on the second cell.
  • the first signaling indicates a timing advance value for the second cell; the second transmitter 1102 sends a third signaling before sending the first signaling; wherein the third signaling is used to trigger sending a first random access preamble on the second cell; and the first random access preamble is used to determine the timing advance value for the second cell.
  • the first signaling indicates a timing advance value for the second cell; the second receiver 1101 receives a first message, and the first message indicates the timing advance value for the second cell.
  • the second transmitter 1102 sends a second message, where the second message indicates switching to the second cell.
  • the second receiver 1101 includes the receiver 418 (including the antenna 420), the receiving processor 470, the multi-antenna receiving processor 472 and the controller/processor 475 in FIG. 4 of the present application.
  • the second receiver 1101 includes at least one of the receiver 418 (including the antenna 420), the receiving processor 470, the multi-antenna receiving processor 472 and the controller/processor 475 in FIG. 4 of the present application.
  • the second transmitter 1102 includes the transmitter 418 (including the antenna 420), the transmission processor 416, the multi-antenna transmission processor 471 and the controller/processor 475 in FIG. 4 of the present application.
  • the second transmitter 1102 includes at least one of the transmitter 418 (including the antenna 420), the transmit processor 416, the multi-antenna transmit processor 471 or the controller/processor 475 in FIG. 4 of the present application.
  • Embodiment 12 illustrates a structural block diagram of a processing device in a third node according to an embodiment of the present application, as shown in FIG12.
  • a third node processing device 1200 includes a third receiver 1201 and a third transmitter 1202; the third node 1200 is a base station or a gNB-DU.
  • a third receiver 1201 receives a first random access preamble on a second cell; wherein the first random access preamble is used to determine a timing advance value for the second cell; wherein a first RRC signaling is received, the first RRC signaling indicates a DRX active time, and the DRX active time is applied to at least the second cell; a first signaling is received on the first cell, the first signaling indicates a switch to the second cell; PDCCH is monitored during the DRX active time on the second cell; the DRX active time depends on the first signaling; the first signaling is a lower layer signaling; a third signaling is received before the first signaling is received, and the third signaling is used to trigger sending the first random access preamble.
  • the DRX active time depends on the first signaling, including: the DRX active time starts from when the first signaling is received.
  • the DRX active time depends on the first signaling, including: the DRX active time starts from when the second signaling is sent; wherein, the second signaling is received on the first cell, and the second signaling indicates that the first signaling is correctly received.
  • the DRX active time depends on the first signaling and includes: the DRX active time starts from the application of the configuration of the second cell; wherein the first signaling indicates that the configuration of the second cell is applied.
  • the third transmitter 1202 sends the PDCCH on the second cell; the third receiver receives the second RRC signaling on the second cell, and the second RRC signaling indicates that the RRC reconfiguration is completed; wherein the PDCCH indicates the time-frequency resources occupied by the second RRC signaling.
  • the first signaling indicates the timing advance value for the second cell; the first signaling does not trigger the sending of a random access preamble on the second cell.
  • the first signaling indicates the timing advance value for the second cell; the third transmitter 1202 sends a first message, and the first message indicates the timing advance value for the second cell.
  • the third receiver 1201 receives a second message, and the second message indicates switching to the second cell.
  • the third receiver 1201 includes the receiver 418 (including the antenna 420), the receiving processor 470, the multi-antenna receiving processor 472 and the controller/processor 475 in FIG. 4 of the present application.
  • the third receiver 1201 includes at least one of the receiver 418 (including the antenna 420), the receiving processor 470, the multi-antenna receiving processor 472 and the controller/processor 475 in FIG. 4 of the present application.
  • the third transmitter 1202 includes the transmitter 418 (including the antenna 420) in FIG. 4 of the present application, and the transmitting Processor 416, multi-antenna transmit processor 471 and controller/processor 475.
  • the third transmitter 1202 includes at least one of the transmitter 418 (including the antenna 420), the transmit processor 416, the multi-antenna transmit processor 471 or the controller/processor 475 in FIG. 4 of the present application.
  • each module unit in the above embodiment can be implemented in the form of hardware or in the form of a software function module, and the present application is not limited to any specific form of software and hardware combination.
  • the first type of communication node or UE or terminal in the present application includes but is not limited to mobile phones, tablet computers, notebooks, Internet cards, low-power devices, eMTC (enhanced Machine Type Communication) devices, NB-IoT devices, vehicle-mounted communication devices, aircraft, airplanes, drones, remote-controlled airplanes and other wireless communication devices.
  • the second type of communication node or base station or network-side device in the present application includes but is not limited to macrocellular base stations, microcellular base stations, home base stations, relay base stations, eNBs, gNBs, transmission and reception nodes TRP (Transmission and Reception Point, transmission and reception points), relay satellites, satellite base stations, aerial base stations and other wireless communication devices.
  • TRP Transmission and Reception Point, transmission and reception points

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Abstract

本申请公开了一种被用于无线通信的方法和装置。第一节点接收第一RRC信令，所述第一RRC信令指示DRX活跃时间，所述DRX活跃时间被应用于至少第二小区；在第一小区上接收第一信令，所述第一信令指示切换(switch)至所述第二小区；在所述第二小区上的所述DRX活跃时间内监测PDCCH；其中，所述DRX活跃时间依赖所述第一信令；所述第一信令是较低层信令。本申请可以有效降低小区切换延时。

Description

一种被用于无线通信的方法和装置 技术领域
本申请涉及无线通信系统中的方法和装置，尤其涉及无线通信中支持非连续接收(Discontinuous Reception，DRX)的方法和装置。
背景技术
DRX是无线通信中的常用方法，能减少通信终端的功耗，提高待机时间。基站通过DCI(Downlink Control Information，下行控制信息)或者MAC(MediumAccess Control，媒体接入控制)CE(Control Element，控制单元)控制与DRX有关的计时器，进而控制终端在给定时隙或子帧是否处于活跃时间，进一步控制通信终端的无线接收，包括当终端处于活跃时间，终端监测并接收无线信号；当终端处于非活跃时间，终端停止监测无线信号。
当UE(User Equipment，用户设备)从一个小区的覆盖范围移动到另一个小区的覆盖范围时，需要改变UE的服务小区。现有服务小区改变通常由L3(Layer 3，层3)测量触发，通过RRC(Radio Resource Control，无线资源控制)信令触发的包括同步的重配置(Reconfigurationwith Synchronization)来实现。在L3实现的服务小区改变具有延时长，信令开销大和中断时间长的特性。为克服上述缺点，在3GPP(3rd Generation Partner Project，第三代合作伙伴项目)RAN(Radio Access Network，无线接入网)#94e次全会上决定对基于L1/L2(Layer 1/Layer 2，层1/层2)的移动性增强技术启动WI(Work Item，工作项目)标准化工作，基于L1/L2的移动性增强技术的设计目标是实现UE服务小区的快速切换。
发明内容
发明人通过研究发现，在基于L1/L2的移动性增强场景中，如何支持DRX需要研究。针对上述问题，本申请公开了一种解决方案。在不冲突的情况下，本申请的第一节点中的实施例和实施例中的特征可以应用到第二节点中，反之亦然。在不冲突的情况下，本申请的实施例和实施例中的特征可以任意相互组合。进一步的，虽然本申请的初衷是针对Uu空口，但本申请也能被用于PC5口。进一步的，虽然本申请的初衷是针对增强移动性作为一个典型场景或者例子，但本申请也同样适用于面临相似问题的其它场景，比如其它需要移动性支持的场景，包括但不限于多天线系统，多TRP(Transmission Reception Point，发送接收节点)系统，容量增强系统，近距离通信系统，非授权频域通信、IoT(Internet of Things，物联网)、URLLC(Ultra Reliable Low Latency Communication，超鲁棒低时延通信)网络、车联网通信、中继通信、双连接(dual-connectivity，DC)、多连接(multi-connectivity，MC)等，取得类似的技术效果。此外，不同场景(包括但不限于终端和基站的蜂窝通信场景)采用统一的解决方案还有助于降低硬件复杂度和成本。特别的，对本申请中的术语(Terminology)、名词、函数、变量的解释(如果未加特别说明)可以参考3GPP的规范协议TS38系列和TS37系列中的定义。
本申请公开了一种被用于无线通信的第一节点中的方法，其特征在于，包括：
接收第一RRC信令，所述第一RRC信令指示DRX活跃时间，所述DRX活跃时间被应用于至少第二小区；
在第一小区上接收第一信令，所述第一信令指示切换(switch)至所述第二小区；
在所述第二小区上的所述DRX活跃时间内监测PDCCH；
其中，所述DRX活跃时间依赖所述第一信令；所述第一信令是较低层信令。
作为一个实施例，上述方法所述第一RRC信令指示DRX活跃时间可以有效支持UE节电。
作为一个实施例，上述方法所述第一信令是较低层信令可以实现快速小区切换(cell switch)。
作为一个实施例，上述方法所述DRX活跃时间依赖所述第一信令可以有效降低小区切换延时。
作为一个实施例，上述方法所述DRX活跃时间依赖所述第一信令可以降低小区切换失败的风险。
作为一个实施例，上述方法所述DRX活跃时间依赖所述第一信令可以增加DRX活跃时间用于及时完成小区切换。
作为一个实施例，上述方法所述DRX活跃时间依赖所述第一信令提高系统处理灵活性。
根据本申请的一个方面，包括：
所述DRX活跃时间依赖所述第一信令包括：所述DRX活跃时间从接收到所述第一信令开始。
作为一个实施例，上述方法可以避免进入DRX非活跃时间，及时监测所述PDCCH(Physical Downlink Control CHannel，物理下行控制信道)，减少小区切换延时。
根据本申请的一个方面，包括：
在所述第一小区上发送第二信令，所述第二信令指示正确接收所述第一信令；
其中，所述DRX活跃时间依赖所述第一信令包括：所述DRX活跃时间从发送完所述第二信令开始。
作为一个实施例，上述方法可以避免进入DRX非活跃时间，及时监测所述PDCCH，减少小区切换延时。
根据本申请的一个方面，包括：
所述DRX活跃时间依赖所述第一信令包括：所述DRX活跃时间从所述第二小区的配置被应用开始；
其中，所述第一信令指示所述第二小区的所述配置被应用。
作为一个实施例，上述方法可以避免进入DRX非活跃时间，及时监测所述PDCCH，减少小区切换延时。
根据本申请的一个方面，包括：
在所述第二小区上发送第二RRC信令，所述第二RRC信令指示RRC重配置完成；
其中，所述PDCCH被监测到，所述PDCCH指示所述第二RRC信令占用的时频资源。
作为一个实施例，上述方法通过发送所述第二RRC信令指示网络小区切换成功。
作为一个实施例，上述方法通过所述PDCCH调度的时频资源发送所述第二RRC信令可以加快小区切换流程，减少小区切换延时，减少由于小区切换引起的业务中断。
根据本申请的一个方面，包括：
所述第一信令指示针对所述第二小区的定时提前值；所述第一信令不触发在所述第二小区上发送随机接入前导。
作为一个实施例，上述方法通过所述第一信令指示针对所述第二小区的定时提前值可以加快小区切换流程，减少小区切换延时，减少由于小区切换引起的业务中断。
作为一个实施例，上述方法通过所述第一信令指示针对所述第二小区的定时提前值可以简化随机接入过程。
作为一个实施例，上述方法通过所述第一信令指示针对所述第二小区的定时提前值可以使得所述第一节点在切换过程中省略通过随机接入过程获得和所述第二小区的上行同步。
作为一个实施例，上述方法通过所述第一信令指示针对所述第二小区的定时提前值可以节省信令开销。
作为一个实施例，上述方法所述第一信令不触发在所述第二小区上发送随机接入前导可以加快小区切换流程，减少小区切换延时，减少由于小区切换引起的业务中断。
根据本申请的一个方面，包括：
在接收所述第一信令之前接收第三信令；
作为接收所述第三信令的响应，在所述第二小区上发送第一随机接入前导；
其中，所述第一随机接入前导被用于确定针对所述第二小区的所述定时提前值。
作为一个实施例，上述方法通过在小区切换之前触发发送所述第一随机接入前导可以使网络提前获得所述第一节点针对所述第二小区的上行发送的定时提前值(timing advance value)，加快小区切换流程。
本申请公开了一种被用于无线通信的第二节点中的方法，其特征在于，包括：
发送第一RRC信令，所述第一RRC信令指示DRX活跃时间，所述DRX活跃时间被应用于至少第二小区；
在第一小区上发送第一信令，所述第一信令指示切换(switch)至所述第二小区；
其中，在所述第二小区上的所述DRX活跃时间内PDCCH被监测；所述DRX活跃时间依赖所述第一信令；所述第一信令是较低层信令。
根据本申请的一个方面，包括：
所述DRX活跃时间依赖所述第一信令包括：所述DRX活跃时间从所述第一信令被接收到开始。
根据本申请的一个方面，包括：
在所述第一小区上接收第二信令，所述第二信令指示所述第一信令被正确接收；
其中，所述DRX活跃时间依赖所述第一信令包括：所述DRX活跃时间从所述第二信令被发送完开始。
根据本申请的一个方面，包括：
所述DRX活跃时间依赖所述第一信令包括：所述DRX活跃时间从所述第二小区的配置被应用开始；
其中，所述第一信令指示所述第二小区的所述配置被应用。
根据本申请的一个方面，包括：
所述第一信令指示针对所述第二小区的定时提前值；所述第一信令不触发在所述第二小区上发送随机接入前导。
根据本申请的一个方面，包括：
在发送所述第一信令之前发送第三信令；
其中，所述第三信令被用于触发在所述第二小区上发送第一随机接入前导；所述第一随机接入前导被用于确定针对所述第二小区的所述定时提前值。
根据本申请的一个方面，包括：
接收第一消息，所述第一消息指示针对所述第二小区的所述定时提前值。
作为一个实施例，所述第一消息的发送者与所述第一随机接入前导的接收者共址。
作为一个实施例，所述第一消息中指示的针对所述第二小区的所述定时提前值被用于生成所述第一信令中指示的针对所述第二小区的所述定时提前值。
作为一个实施例，上述方法通过所述第一消息和所述第一信令获得针对所述第二小区的所述定时提前值可以简化UE接收能力。
根据本申请的一个方面，包括：
发送第二消息，所述第二消息指示切换至所述第二小区。
作为一个实施例，所述第二消息在所述第一信令之后被发送。
作为一个实施例，所述第二消息的接收者与所述PDCCH的发送者共址。
作为一个实施例，上述方法通过所述第二消息可以及时向目标小区的基站指示小区切换。
本申请公开了一种被用于无线通信的第三节点中的方法，其特征在于，包括：
在第二小区上接收第一随机接入前导；
其中，所述第一随机接入前导被用于确定针对所述第二小区的定时提前值；其中，第一RRC信令被接收，所述第一RRC信令指示DRX活跃时间，所述DRX活跃时间被应用于至少所述第二小区；在第一小区上第一信令被接收，所述第一信令指示切换(switch)至所述第二小区；在所述第二小区上的所述DRX活跃时间内PDCCH被监测；所述DRX活跃时间依赖所述第一信令；所述第一信令是较低层信令；在所述第一信令被接收之前第三信令被接收，所述第三信令被用于触发发送所述第一随机接入前导。
根据本申请的一个方面，包括：
所述DRX活跃时间依赖所述第一信令包括：所述DRX活跃时间从所述第一信令被接收到开始。
根据本申请的一个方面，包括：
所述DRX活跃时间依赖所述第一信令包括：所述DRX活跃时间从第二信令被发送完开始；
其中，在所述第一小区上所述第二信令被接收，所述第二信令指示所述第一信令被正确接收。
根据本申请的一个方面，包括：
所述DRX活跃时间依赖所述第一信令包括：所述DRX活跃时间从所述第二小区的配置被应用开始；
其中，所述第一信令指示所述第二小区的所述配置被应用。
根据本申请的一个方面，包括：
在所述第二小区上发送所述PDCCH；
在所述第二小区上接收第二RRC信令，所述第二RRC信令指示RRC重配置完成；
其中，所述PDCCH指示所述第二RRC信令占用的时频资源。
根据本申请的一个方面，包括：
所述第一信令指示针对所述第二小区的所述定时提前值；所述第一信令不触发在所述第二小区上发送 随机接入前导。
根据本申请的一个方面，包括：
发送第一消息，所述第一消息指示针对所述第二小区的所述定时提前值。
根据本申请的一个方面，包括：
接收第二消息，所述第二消息指示切换至所述第二小区。
本申请公开了一种被用于无线通信的第一节点，其特征在于，包括：
第一接收机，接收第一RRC信令，所述第一RRC信令指示DRX活跃时间，所述DRX活跃时间被应用于至少第二小区；在第一小区上接收第一信令，所述第一信令指示切换(switch)至所述第二小区；在所述第二小区上的所述DRX活跃时间内监测PDCCH；
其中，所述DRX活跃时间依赖所述第一信令；所述第一信令是较低层信令。
本申请公开了一种被用于无线通信的第二节点，其特征在于，包括：
第二发射机，发送第一RRC信令，所述第一RRC信令指示DRX活跃时间，所述DRX活跃时间被应用于至少第二小区；在第一小区上发送第一信令，所述第一信令指示切换(switch)至所述第二小区；
其中，在所述第二小区上的所述DRX活跃时间内PDCCH被监测；所述DRX活跃时间依赖所述第一信令；所述第一信令是较低层信令。
本申请公开了一种被用于无线通信的第三节点，其特征在于，包括：
第三接收机，在第二小区上接收第一随机接入前导；其中，所述第一随机接入前导被用于确定针对所述第二小区的定时提前值；
其中，第一RRC信令被接收，所述第一RRC信令指示DRX活跃时间，所述DRX活跃时间被应用于至少所述第二小区；在第一小区上第一信令被接收，所述第一信令指示切换(switch)至所述第二小区；在所述第二小区上的所述DRX活跃时间内PDCCH被监测；所述DRX活跃时间依赖所述第一信令；所述第一信令是较低层信令；在所述第一信令被接收之前第三信令被接收，所述第三信令被用于触发发送所述第一随机接入前导。
附图说明
通过阅读参照以下附图所作的对非限制性实施例所作的详细描述，本申请的其它特征、目的和优点将会变得更加明显：
图1示例了根据本申请的一个实施例的第一节点中的信号处理流程图；
图2示例了根据本申请的一个实施例的网络架构的示意图；
图3示例了根据本申请的一个实施例的用户平面和控制平面的无线协议架构的示意图；
图4示例了根据本申请的一个实施例的通信设备的硬件模块示意图；
图5示例了根据本申请的一个实施例的无线信号传输流程图；
图6示例了根据本申请的一个实施例的回程网络中的信号传输流程图；
图7示例了根据本申请的一个实施例的DRX活跃时间示意图；
图8示例了根据本申请的一个实施例的DRX活跃时间示意图；
图9示例了根据本申请的一个实施例的DRX活跃时间示意图；
图10示例了根据本申请的一个实施例的第一节点中的处理装置的结构框图；
图11示例了根据本申请的一个实施例的第二节点中的处理装置的结构框图；
图12示例了根据本申请的一个实施例的第三节点中的处理装置的结构框图。
具体实施方式
下文将结合附图对本申请的技术方案作进一步详细说明，需要说明的是，在不冲突的情况下，本申请的实施例和实施例中的特征可以任意相互组合。
实施例1
实施例1示例了根据本申请的一个实施例的第一节点中的信号处理流程图，如附图1所示。
在实施例1中，第一节点100在步骤101中接收第一RRC信令，所述第一RRC信令指示DRX活跃 时间，所述DRX活跃时间被应用于至少第二小区；步骤102中在第一小区上接收第一信令，所述第一信令指示切换(switch)至所述第二小区；步骤103z2在所述第二小区上的所述DRX活跃时间内监测PDCCH；其中，所述DRX活跃时间依赖所述第一信令；所述第一信令是较低层信令。
作为一个实施例，接收第一RRC信令。
作为一个实施例，在第一小区上接收所述第一RRC信令。
作为一个实施例，在所述第一节点的服务小区上接收所述第一RRC信令。
作为一个实施例，所述第一节点的所述服务小区包括SpCell(Special Cell，特殊小区)。
作为一个实施例，所述第一节点的所述服务小区包括SCell(Secondary Cell，辅小区)。
作为一个实施例，所述第一节点的所述服务小区包括所述第一小区。
作为一个实施例，所述第一RRC信令为RRCReconfiguration(RRC重配置)。
作为一个实施例，所述第一RRC信令包括候选配置(candidate configuration)。
作为一个实施例，所述第一RRC信令包括参考配置(reference configuration)。
作为一个实施例，所述第一RRC信令包括候选目标配置(candidate target configuration)。
作为一个实施例，所述第一RRC信令包括候选增量配置(candidate delta configuration)。
作为一个实施例，所述第一RRC信令包括CellGroupConfig(小区组配置)域(field)，所述CellGroupConfig域配置至少一个候选小区。
作为一个实施例，所述第一RRC信令被用于配置至少一个切换候选小区，所述至少一个切换候选小区包括所述第二小区。
作为一个实施例，所述第一RRC信令被用于配置所述至少一个切换候选小区中的空口资源，所述至少一个切换候选小区包括所述第二小区。
作为一个实施例，所述第一RRC信令指示所述第二小区。
作为一个实施例，所述第一RRC信令包括所述第二小区的标识。
作为一个实施例，所述第一RRC信令被用于配置所述第二小区。
作为一个实施例，所述第一RRC信令被用于配置所述第二小区的空口资源。
作为一个实施例，所述第一RRC信令被用于配置所述第一节点在所述第二小区中的单播(unicast)RNTI(Radio Network Temporary Identifier，无线网络临时标识)。
作为一个实施例，所述第一RRC信令被用于配置所述第一节点在所述第二小区中的C(Cell，小区)-RNTI。
作为一个实施例，所述第一RRC信令被用于配置在所述第二小区上执行随机接入过程的空口资源。
作为一个实施例，所述第一RRC信令被用于配置所述至少第二小区的MAC(Medium Access Control，媒体接入控制)参数。
作为一个实施例，所述第一RRC信令指示DRX活跃时间(active time)。
作为一个实施例，所述第一RRC信令包括drx-Config(非连续接收配置)域，所述drx-Config域配置DRX相关参数，通过所述DRX相关参数指示所述DRX活跃时间。
作为一个实施例，所述第一RRC信令配置DRX开持续计时器(drx-onDurationTimer)，包括配置所述DRX开持续计时器的过期值。
作为一个实施例，所述DRX活跃时间包括所述DRX开持续计时器处于运行的时间。
作为一个实施例，所述第一RRC信令配置DRX非活跃计时器(drx-InactivityTimer)，包括配置所述DRX非活跃计时器的过期值。
作为一个实施例，所述DRX活跃时间包括所述DRX非活跃计时器处于运行的时间。
作为一个实施例，所述第一RRC信令配置DRX下行重传计时器(drx-RetransmissionTimerDL)，包括配置所述DRX下行重传计时器的过期值。
作为一个实施例，所述DRX活跃时间包括任一服务小区上的所述DRX下行重传计时器处于运行的时间。
作为一个实施例，所述第一RRC信令配置DRX上行重传计时器(drx-RetransmissionTimerUL)，包括配置所述DRX上行重传计时器的过期值。
作为一个实施例，所述DRX活跃时间包括任一服务小区上的所述DRX上行重传计时器处于运行的时间。
作为一个实施例，所述第一RRC信令配置DRX长周期和起始偏移(drx-LongCycleStartOffset)。
作为一个实施例，所述第一RRC信令配置DRX短周期(drx-ShortCycle)。
作为一个实施例，所述第一RRC信令配置DRX短周期计时器(drx-ShortCycleTimer)。
作为一个实施例，所述第一RRC信令配置DRX时隙偏移(drx-SlotOffset)。
作为一个实施例，所述DRX开持续计时器根据所述第一RRC信令配置的所述DRX相关参数周期性的处于运行状态。
作为一个实施例，当接收到指示一个新传输(new transmission)的PDCCH时，开始(start)或重新开始(re-start)所述DRX非活跃计时器。
作为一个实施例，一个计时器开始或重新开始后处于运行状态；所述一个计时器在运行状态在每一个时间间隔更新所述一个计时器；当所述一个计时器过期后，停止在每一个时间间隔更新所述一个计时器。
作为一个实施例，开始一个计时器时将所述一个计时器的值设为0，所述短语更新所述一个计时器包括：将所述一个计时器的值加1；当所述一个计时器的值为所述一个计时器的过期值时，所述一个计时器过期。
作为一个实施例，开始所述一个计时器时将所述一个计时器的值设为所述一个计时器的过期值，所述短语更新所述一个计时器包括：将所述一个计时器的值减1；当所述一个计时器的值为0时，所述一个计时器过期。
作为一个实施例，所述DRX活跃时间包括ra-ContentionResolutionTimer(随机接入竞争解决计时器)或msgB-ResponseWindow(消息B响应窗)处于运行的时间。
作为一个实施例，所述DRX活跃时间包括调度请求(SchedulingRequest，SR)在PUCCH(Physical Uplink Control Channel，物理上行控制信道)上被发送且正被挂起(ispending)的时间。
作为一个实施例，所述DRX活跃时间包括在成功接收到随机接入响应后，指示新传输的被C-RNTI标识的PDCCH尚未被接收到的时间；其中，针对所述随机接入响应的随机接入前导不是被MAC实体从基于竞争(contention-based)的随机接入前导中选择的。
作为一个实施例，所述DRX活跃时间被应用于至少第二小区。
作为一个实施例，所述DRX活跃时间被配置给多个小区，所述第二小区是所述多个小区中之一。
作为一个实施例，所述多个小区组成一个DRX组(group)。
作为一个实施例，所述DRX活跃时间被应用于所述DRX组。
作为一个实施例，所述DRX活跃时间被应用于至少第二小区的意思是：在所述DRX活跃时间在至少第二小区上监测PDCCH。
作为一个实施例，在第一小区上接收第一信令。
作为一个实施例，所述第一小区为主小区(primary cell，PCell)。
作为一个实施例，所述第一小区为特殊小区(Special cell，SpCell)。
作为一个实施例，所述第一小区为源小区(source cell)。
作为一个实施例，在一个小区上接收的意思是：通过一个小区的空口资源接收。
作为一个实施例，在一个小区上发送的意思是：通过一个小区的空口资源发送。
作为一个实施例，所述空口资源包括时域资源，频域资源，空域资源和码域资源中至少之一。
作为一个实施例，所述第一信令是较低层(lower layer)信令。
作为一个实施例，所述第一信令为RRC子层之下的协议层信令。
作为一个实施例，所述第一信令为物理层信令。
作为一个实施例，所述第一信令为DCI。
作为一个实施例，所述第一信令为MAC(Medium Access Control，媒体接入控制)子层信令。
作为一个实施例，所述第一信令为MAC CE(Control Element，控制元素)。
作为一个实施例，所述第一信令为小区切换信令。
作为一个实施例，所述第一信令的名字包括LTM(L1/L2-triggered mobility，层1/层2触发的移动)。
作为一个实施例，所述第一信令的名字包括switch(切换)。
作为一个实施例，所述第一信令为LTM cell switch(LTM小区切换)。
作为一个实施例，所述第一信令指示切换(switch)至所述第二小区。
作为一个实施例，所述第一信令为MAC CE，所述第一信令被逻辑信道身份(Logical Channel ID，LCID)所标识，所述逻辑信道身份指示小区切换。
作为一个实施例，所述逻辑信道身份为35-46之间包括35和46的正整数。
作为一个实施例，所述逻辑信道身份为0-226之间包括0和226的正整数。
作为一个实施例，所述第一信令指示所述第二小区。
作为一个实施例，所述第一信令包括所述第二小区的标识。
作为一个实施例，所述第一信令包括一个小区标识，所述一个小区标识被用于标识(identify)所述第二小区。
作为一个实施例，所述一个小区标识为物理小区标识(physical cell identity)。
作为一个实施例，所述一个小区标识为服务小区索引(serving cell index)。
作为一个实施例，所述一个小区标识为候选小区索引(candidate cell index)。
作为一个实施例，所述一个小区标识为目标小区索引(target cell index)。
作为一个实施例，所述第一信令包括的所述第二小区的标识与所述第一RRC信令包括的所述第二小区的标识相同。
作为一个实施例，所述第一小区与所述第二小区属于同一个gNB(新空口节点B)-DU(Distributed Unit，分布单元)。
作为一个实施例，所述第一小区与所述第二小区属于不同的gNB-DU。
作为一个实施例，所述第一小区与所述第二小区属于同一个gNB-CU(Central Unit，中心单元)。
作为一个实施例，所述第一小区与所述第二小区属于不同的gNB-CU。
作为一个实施例，所述第二小区为所述第一节点的服务小区。
作为一个实施例，所述第一信令指示所述第一节点的特殊小区和辅小区调换；其中，在接收所述第一信令之前，所述第一小区为SpCell，所述第二小区为Scell。
作为一个实施例，所述第二小区不是所述第一节点的服务小区。
作为一个实施例，所述第二小区是小区切换的候选小区(candidate cell)。
作为一个实施例，所述第二小区是小区切换的目标小区(target cell)。
作为一个实施例，所述第一信令指示为所述第二小区选择的波束(beam)。
作为一个实施例，所述选择的波束被用于在所述第二小区中的下行接收和上行发送。
作为一个实施例，所述第一信令指示针对所述第二小区的TCI(Transmission Configuration Indicator，发送配置指示)状态(state)。
作为一个实施例，在所述第二小区上的所述DRX活跃时间内监测PDCCH。
作为一个实施例，所述监测的意思包括搜索(search)。
作为一个实施例，所述监测的意思包括监听(monitor)。
作为一个实施例，所述短语监测PDCCH包括：通过能量监测确定是否存在PDCCH。
作为一个实施例，所述短语监测PDCCH包括：通过相干检测确定是否存在PDCCH。
作为一个实施例，所述短语监测PDCCH包括：通过最大似然检测确定是否存在PDCCH。
作为一个实施例，所述短语监测PDCCH包括：通过盲译码检测确定是否存在PDCCH。
作为一个实施例，所述短语监测PDCCH包括：在CSS(Common Search Space，公共搜索空间)中监测PDCCH。
作为一个实施例，所述短语监测PDCCH包括：在USS(UE-specific search space，用户设备专用搜索空间)中监测PDCCH。
作为一个实施例，所述PDCCH被单播RNTI标识。
作为一个实施例，所述单播RNTI在所述第二小区中唯一标识所述第一节点。
作为一个实施例，所述PDCCH被C-RNTI,CI(Cancellation Indication，取消指示)-RNTI,CS(Configured  Scheduling，配置调度)-RNTI,INT(Interruption，中断)-RNTI,SFI(Slot Format Indication，时隙格式指示)-RNTI,SP(Semi-Persistent，半持续)-CSI(Channel State Information，信道状态信息)-RNTI,TPC(Transmit Power Control，发送功率控制)-PUCCH(Physical Uplink Control Channel，物理上行控制信道)-RNTI,TPC(Transmit Power Control，发送功率控制)-PUSCH(Physical Uplink Shared Channel，物理上行共享信道)-RNTI,TPC(Transmit Power Control，发送功率控制)-SRS(Sounding Reference Signal，探测参考信号)-RNTI,和AI(Availability indication，可用指示)-RNTI中的至少之一标识。
作为一个实施例，所述PDCCH被SL(Sidelink，副链路)-RNTI,SLCS(Sidelink Configured Scheduling，副链路配置调度)-RNTI和副链路半持续调度(SL Semi-Persistent Scheduling)V(Vehicle-to-Everything，车联网)-RNTI中的至少之一标识。
作为一个实施例，所述DRX活跃时间依赖所述第一信令。
作为一个实施例，所述DRX活跃时间与所述第一信令有关。
作为一个实施例，所述DRX活跃时间依赖所述第一信令所占用的时域资源。
作为一个实施例，所述DRX活跃时间依赖所述第一信令的类型，所述第一信令的所述类型包括MAC CE和DCI。
作为一个实施例，所述DRX活跃时间依赖所述第一信令的内容。
作为一个实施例，所述DRX活跃时间依赖所述第一信令是否指示针对所述第二小区的定时提前值。
作为一个实施例，当所述第一信令未指示针对所述第二小区的所述定时提前值时，所述DRX活跃时间依赖所述第一信令触发的所述第一节点在所述第二小区中发起的随机接入过程。
作为一个实施例，当所述第一信令指示针对所述第二小区的所述定时提前值时，所述DRX活跃时间依赖所述第一信令。
作为一个实施例，所述DRX活跃时间依赖针对所述第一信令的反馈时间。
作为一个实施例，所述DRX活跃时间依赖所述第一信令的生效时间。
作为一个实施例，所述DRX活跃时间的起始时间依赖所述第一信令。
作为一个实施例，所述DRX活跃时间的起始时间距离所述第一信令所占用的时域资源间隔Q个符号(symbol)。
作为一个实施例，所述DRX活跃时间的起始时间距离所述第一信令所占用的时域资源的结束时间间隔Q个符号。
作为一个实施例，所述Q为大于0的正整数。
作为一个实施例，所述Q为0。
作为一个实施例，所述DRX活跃时间在所述PDCCH被监测到时结束。
实施例2
实施例2示例了根据本申请的一个实施例的网络架构示意图，如附图2所示。图2说明了NR 5G，LTE(Long-Term Evolution，长期演进)及LTE-A(Long-Term Evolution Advanced，增强长期演进)系统的网络架构200的图。NR 5G，LTE或LTE-A网络架构200可称为5GS(5G System)/EPS(Evolved Packet System，演进分组系统)200或某种其它合适术语。5GS/EPS 200可包括一个或一个以上UE(User Equipment，用户设备)201，NG-RAN(下一代无线接入网络)202，5GC(5G Core Network，5G核心网)/EPC(Evolved Packet Core，演进分组核心)210，HSS(Home Subscriber Server，归属签约用户服务器)/UDM(Unified Data Management，统一数据管理)220和因特网服务230。5GS/EPS可与其它接入网络互连，但为了简单未展示这些实体/接口。如图所示，5GS/EPS提供包交换服务，然而所属领域的技术人员将容易了解，贯穿本申请呈现的各种概念可扩展到提供电路交换服务的网络或其它蜂窝网络。NG-RAN包括NR节点B(gNB)203和其它gNB204。gNB203提供朝向UE201的用户和控制平面协议终止。gNB203可经由Xn接口(例如，回程)连接到其它gNB204。gNB203也可称为基站、基站收发台、无线电基站、无线电收发器、收发器功能、基本服务集合(Basic Service Set,BSS)、扩展服务集合(Extended Service Set,ESS)、TRP(Transmission Reception Point，发送接收节点)或某种其它合适术语，在NTN(Non Terrestrial Network,非陆地/卫星网络)网络中，gNB203可以是卫星，飞行器或通过卫星中继的地面基站。gNB203为UE201提供对5GC/EPC210 的接入点。UE201的实例包括蜂窝式电话、智能电话、会话起始协议(Session Initiation Protocol,SIP)电话、膝上型计算机、个人数字助理(Personal Digital Assistant,PDA)、卫星无线电、全球定位系统、多媒体装置、视频装置、数字音频播放器(例如，MP3播放器)、相机、游戏控制台、无人机、飞行器、窄带物联网设备、机器类型通信设备、陆地交通工具、汽车、车载设备、车载通信单元、可穿戴设备，或任何其它类似功能装置。所属领域的技术人员也可将UE201称为移动台、订户台、移动单元、订户单元、无线单元、远程单元、移动装置、无线装置、无线通信装置、远程装置、移动订户台、接入终端、移动终端、无线终端、远程终端、手持机、用户代理、移动客户端、客户端或某个其它合适术语。gNB203通过S1/NG接口连接到5GC/EPC210。5GC/EPC210包括MME(Mobility Management Entity,移动性管理实体)/AMF(Authentication Management Field,鉴权管理域)/SMF(Session Management Function，会话管理功能)211、其它MME/AMF/SMF214、S-GW(Service Gateway，服务网关)/UPF(User Plane Function，用户面功能)212以及P-GW(Packet Date Network Gateway，分组数据网络网关)/UPF213。MME/AMF/SMF211是处理UE201与5GC/EPC210之间的信令的控制节点。大体上，MME/AMF/SMF211提供承载和连接管理。所有用户IP(Internet Protocol，因特网协议)包是通过S-GW/UPF212传送，S-GW/UPF212自身连接到P-GW/UPF213。P-GW提供UE IP地址分配以及其它功能。P-GW/UPF213连接到因特网服务230。因特网服务230包括运营商对应因特网协议服务，具体可包括因特网、内联网、IMS(IP Multimedia Subsystem，IP多媒体子系统)和PS(Packet Switching,包交换)串流服务。
作为一个实施例，所述UE201对应本申请中的第一节点。
作为一个实施例，所述NR节点B203对应本申请中的第二节点。
作为一个实施例，所述NR节点B203对应本申请中的第三节点。
作为一个实施例，所述其它NR节点B204对应本申请中的第三节点。
作为一个实施例，所述UE201是支持LTM的终端。
作为一个实施例，所述UE201是支持DRX的终端。
作为一个实施例，所述gNB203是宏蜂窝(Marco Cell)基站。
作为一个实施例，所述gNB203是微小区(Micro Cell)基站。
作为一个实施例，所述gNB203是微微小区(Pico Cell)基站。
作为一个实施例，所述gNB203是家庭基站(Femtocell)。
作为一个实施例，所述gNB203是支持大时延差的基站设备。
作为一个实施例，所述gNB203是一个飞行平台设备。
作为一个实施例，所述gNB203是卫星设备。
作为一个实施例，所述gNB203是测试设备(例如模拟基站部分功能的收发装置，信令测试仪)。
作为一个实施例，所述gNB204是宏蜂窝(Marco Cell)基站。
作为一个实施例，所述gNB204是微小区(Micro Cell)基站。
作为一个实施例，所述gNB204是微微小区(Pico Cell)基站。
作为一个实施例，所述gNB204是家庭基站(Femtocell)。
作为一个实施例，所述gNB204是支持大时延差的基站设备。
作为一个实施例，所述gNB204是一个飞行平台设备。
作为一个实施例，所述gNB204是卫星设备。
作为一个实施例，所述gNB204是测试设备(例如模拟基站部分功能的收发装置，信令测试仪)。
作为一个实施例，从所述UE201到所述gNB203/所述gNB204的无线链路是上行链路，所述上行链路被用于执行上行传输。
作为一个实施例，从所述gNB203/所述gNB204到所述UE201的无线链路是下行链路，所述下行链路被用于执行下行传输。
作为一个实施例，所述UE201和所述gNB203/所述gNB204之间分别通过Uu接口连接。
实施例3
实施例3示例了根据本申请的一个实施例的用户平面和控制平面的无线协议架构的示意图，如附图3 所示。图3是说明用于用户平面350和控制平面300的无线协议架构的实施例的示意图，图3用三个层展示UE和gNB的控制平面300的无线协议架构：层1、层2和层3。层1(L1层)是最低层且实施各种PHY(物理层)信号处理功能。L1层在本文将称为PHY301。层2(L2层)305在PHY301之上，通过PHY301负责在UE和gNB之间的链路。L2层305包括MAC(Medium Access Control，媒体接入控制)子层302、RLC(Radio Link Control，无线链路层控制协议)子层303和PDCP(Packet Data Convergence Protocol，分组数据汇聚协议)子层304，这些子层终止于网络侧的gNB处。PDCP子层304提供数据加密和完整性保护，PDCP子层304还提供gNB之间的对UE的越区移动支持。RLC子层303提供数据包的分段和重组，通过ARQ实现丢失数据包的重传，RLC子层303还提供重复数据包检测和协议错误检测。MAC子层302提供逻辑与传输信道之间的映射和逻辑信道身份的复用。MAC子层302还负责在UE之间分配一个小区中的各种无线资源(例如，资源块)。MAC子层302还负责HARQ(Hybrid Automatic Repeat Request，混合自动重传请求)操作。控制平面300中的层3(L3层)中的RRC(Radio Resource Control，无线资源控制)子层306负责获得无线资源(即，无线承载)且使用gNB与UE之间的RRC信令来配置下部层。虽然未图示，UE的控制平面300中的RRC子层306之上还可以具有V2X层，V2X层负责根据接收到的业务数据或业务请求生成PC5 QoS参数组和QoS规则，对应PC5 QoS参数组生成一条PC5 QoS流并将PC5 QoS流标识和对应的PC5 QoS参数组发送给AS(Access Stratum,接入层)层用于AS层对属于PC5 QoS流标识的数据包的QoS处理；V2X层还包括PC5-S信令协议(PC5-Signaling Protocol)子层，V2X层负责指示AS层每一次传输是PC5-S传输还是V2X业务数据传输。用户平面350的无线协议架构包括层1(L1层)和层2(L2层)，在用户平面350中的无线协议架构对于物理层351，L2层355中的PDCP子层354，L2层355中的RLC子层353和L2层355中的MAC子层352来说和控制平面300中的对应层和子层大体上相同，但PDCP子层354还提供用于上部层数据包的包头压缩以减少无线发送开销。用户平面350中的L2层355中还包括SDAP(Service Data Adaptation Protocol，服务数据适配协议)子层356，SDAP子层356负责QoS(Quality of Service，业务质量)流和数据无线承载(DRB，Data Radio Bearer)之间的映射，以支持业务的多样性。UE在用户平面350中的无线协议架构在L2层可包括SDAP子层356，PDCP子层354，RLC子层353和MAC子层352的部分协议子层或者全部协议子层。虽然未图示，但UE还可具有在L2层355之上的若干上部层，包括终止于网络侧上的P-GW处的网络层(例如，IP层)和终止于连接的另一端(例如，远端UE、服务器等等)处的应用层。
作为一个实施例，附图3中的无线协议架构适用于本申请中的第一节点。
作为一个实施例，附图3中的无线协议架构适用于本申请中的第二节点。
作为一个实施例，附图3中的无线协议架构适用于本申请中的第三节点。
作为一个实施例，本申请中的所述第一RRC信令生成于所述RRC306。
作为一个实施例，本申请中的所述第一信令生成于所述MAC302或者所述MAC352。
作为一个实施例，本申请中的所述第一信令生成于所述PHY301或者所述PHY351。
作为一个实施例，本申请中的所述第二信令生成于所述PHY301或者所述PHY351。
作为一个实施例，本申请中的所述第三信令生成于所述PHY301或者所述PHY351。
作为一个实施例，本申请中的所述第二RRC信令生成于所述RRC306。
作为一个实施例，所述L2层305或者355属于更高层。
作为一个实施例，所述L3层中的RRC子层306属于更高层。
实施例4
实施例4示例了根据本申请的一个实施例的通信设备的硬件模块示意图，如附图4所示。图4是在接入网络中相互通信的第一通信设备450以及第二通信设备410的框图。
第一通信设备450包括控制器/处理器459，存储器460，数据源467，发射处理器468，接收处理器456，多天线发射处理器457，多天线接收处理器458，发射器/接收器454和天线452。
第二通信设备410包括控制器/处理器475，存储器476，数据源477，接收处理器470，发射处理器416，多天线接收处理器472，多天线发射处理器471，发射器/接收器418和天线420。
在从所述第二通信设备410到所述第一通信设备450的传输中，在所述第二通信设备410处，来自核 心网的上层数据包或者来自数据源477的上层数据包被提供到控制器/处理器475。核心网和数据源477表示L2层之上的所有协议层。控制器/处理器475实施L2层的功能性。在从所述第二通信设备410到所述第一通信设备450的传输中，控制器/处理器475提供标头压缩、加密、包分段和重排序、逻辑与输送信道之间的多路复用，以及基于各种优先级量度对所述第一通信设备450的无线资源分配。控制器/处理器475还负责丢失包的重新发射，和到所述第一通信设备450的信令。发射处理器416和多天线发射处理器471实施用于L1层(即，物理层)的各种信号处理功能。发射处理器416实施编码和交错以促进所述第二通信设备410处的前向错误校正(FEC)，以及基于各种调制方案(例如，二元相移键控(BPSK)、正交相移键控(QPSK)、M相移键控(M-PSK)、M正交振幅调制(M-QAM))的信号群集的映射。多天线发射处理器471对经编码和调制后的符号进行数字空间预编码，包括基于码本的预编码和基于非码本的预编码，和波束赋型处理，生成一个或多个空间流。发射处理器416随后将每一空间流映射到子载波，在时域和/或频域中与参考信号(例如，导频)多路复用，且随后使用快速傅立叶逆变换(IFFT)以产生载运时域多载波符号流的物理信道。随后多天线发射处理器471对时域多载波符号流进行发送模拟预编码/波束赋型操作。每一发射器418把多天线发射处理器471提供的基带多载波符号流转化成射频流，随后提供到不同天线420。
在从所述第二通信设备410到所述第一通信设备450的传输中，在所述第一通信设备450处，每一接收器454通过其相应天线452接收信号。每一接收器454恢复调制到射频载波上的信息，且将射频流转化成基带多载波符号流提供到接收处理器456。接收处理器456和多天线接收处理器458实施L1层的各种信号处理功能。多天线接收处理器458对来自接收器454的基带多载波符号流进行接收模拟预编码/波束赋型操作。接收处理器456使用快速傅立叶变换(FFT)将接收模拟预编码/波束赋型操作后的基带多载波符号流从时域转换到频域。在频域，物理层数据信号和参考信号被接收处理器456解复用，其中参考信号将被用于信道估计，数据信号在多天线接收处理器458中经过多天线检测后恢复出以所述第一通信设备450为目的地的任何空间流。每一空间流上的符号在接收处理器456中被解调和恢复，并生成软决策。随后接收处理器456解码和解交错所述软决策以恢复在物理信道上由所述第二通信设备410发射的上层数据和控制信号。随后将上层数据和控制信号提供到控制器/处理器459。控制器/处理器459实施L2层的功能。控制器/处理器459可与存储程序代码和数据的存储器460相关联。存储器460可称为计算机可读媒体。在从所述第二通信设备410到所述第一通信设备450的传输中，控制器/处理器459提供输送与逻辑信道之间的多路分用、包重组装、解密、标头解压缩、控制信号处理以恢复来自第二通信设备410的上层数据包。随后将上层数据包提供到L2层之上的所有协议层。也可将各种控制信号提供到L3以用于L3处理。
在从所述第一通信设备450到所述第二通信设备410的传输中，在所述第一通信设备450处，使用数据源467将上层数据包提供到控制器/处理器459。数据源467表示L2层之上的所有协议层。类似于在从所述第二通信设备410到所述第一通信设备450的传输中所描述所述第二通信设备410处的发送功能，控制器/处理器459实施标头压缩、加密、包分段和重排序以及逻辑与输送信道之间的多路复用，实施用于用户平面和控制平面的L2层功能。控制器/处理器459还负责丢失包的重新发射，和到所述第二通信设备410的信令。发射处理器468执行调制映射、信道编码处理，多天线发射处理器457进行数字多天线空间预编码，包括基于码本的预编码和基于非码本的预编码，和波束赋型处理，随后发射处理器468将产生的空间流调制成多载波/单载波符号流，在多天线发射处理器457中经过模拟预编码/波束赋型操作后再经由发射器454提供到不同天线452。每一发射器454首先把多天线发射处理器457提供的基带符号流转化成射频符号流，再提供到天线452。
在从所述第一通信设备450到所述第二通信设备410的传输中，所述第二通信设备410处的功能类似于在从所述第二通信设备410到所述第一通信设备450的传输中所描述的所述第一通信设备450处的接收功能。每一接收器418通过其相应天线420接收射频信号，把接收到的射频信号转化成基带信号，并把基带信号提供到多天线接收处理器472和接收处理器470。接收处理器470和多天线接收处理器472共同实施L1层的功能。控制器/处理器475实施L2层功能。控制器/处理器475可与存储程序代码和数据的存储器476相关联。存储器476可称为计算机可读媒体。在从所述第一通信设备450到所述第二通信设备410的传输中，控制器/处理器475提供输送与逻辑信道之间的多路分用、包重组装、解密、标头解压缩、控制信号处理以恢复来自第一通信设备450的上层数据包。来自控制器/处理器475的上层数据包可被提供到核心网或者L2层之上的所有协议层，也可将各种控制信号提供到核心网或者L3以用于L3处理。
作为一个实施例，所述第一通信设备450装置包括：至少一个处理器以及至少一个存储器，所述至少一个存储器包括计算机程序代码；所述至少一个存储器和所述计算机程序代码被配置成与所述至少一个处理器一起使用，所述第一通信设备450装置至少：接收第一RRC信令，所述第一RRC信令指示DRX活跃时间，所述DRX活跃时间被应用于至少第二小区；在第一小区上接收第一信令，所述第一信令指示切换(switch)至所述第二小区；在所述第二小区上的所述DRX活跃时间内监测PDCCH；其中，所述DRX活跃时间依赖所述第一信令；所述第一信令是较低层信令。
作为一个实施例，所述第一通信设备450装置包括：一种存储计算机可读指令程序的存储器，所述计算机可读指令程序在由至少一个处理器执行时产生动作，所述动作包括：接收第一RRC信令，所述第一RRC信令指示DRX活跃时间，所述DRX活跃时间被应用于至少第二小区；在第一小区上接收第一信令，所述第一信令指示切换(switch)至所述第二小区；在所述第二小区上的所述DRX活跃时间内监测PDCCH；其中，所述DRX活跃时间依赖所述第一信令；所述第一信令是较低层信令。
作为一个实施例，所述第二通信设备410装置包括：至少一个处理器以及至少一个存储器，所述至少一个存储器包括计算机程序代码；所述至少一个存储器和所述计算机程序代码被配置成与所述至少一个处理器一起使用。所述第二通信设备410装置至少：发送第一RRC信令，所述第一RRC信令指示DRX活跃时间，所述DRX活跃时间被应用于至少第二小区；在第一小区上发送第一信令，所述第一信令指示切换(switch)至所述第二小区；其中，在所述第二小区上的所述DRX活跃时间内PDCCH被监测；所述DRX活跃时间依赖所述第一信令；所述第一信令是较低层信令。
作为一个实施例，所述第二通信设备410装置包括：一种存储计算机可读指令程序的存储器，所述计算机可读指令程序在由至少一个处理器执行时产生动作，所述动作包括：发送第一RRC信令，所述第一RRC信令指示DRX活跃时间，所述DRX活跃时间被应用于至少第二小区；在第一小区上发送第一信令，所述第一信令指示切换(switch)至所述第二小区；其中，在所述第二小区上的所述DRX活跃时间内PDCCH被监测；所述DRX活跃时间依赖所述第一信令；所述第一信令是较低层信令。
作为一个实施例，所述第二通信设备410装置包括：至少一个处理器以及至少一个存储器，所述至少一个存储器包括计算机程序代码；所述至少一个存储器和所述计算机程序代码被配置成与所述至少一个处理器一起使用。所述第二通信设备410装置至少：在第二小区上接收第一随机接入前导；其中，所述第一随机接入前导被用于确定针对所述第二小区的定时提前值；其中，第一RRC信令被接收，所述第一RRC信令指示DRX活跃时间，所述DRX活跃时间被应用于至少所述第二小区；在第一小区上第一信令被接收，所述第一信令指示切换(switch)至所述第二小区；在所述第二小区上的所述DRX活跃时间内PDCCH被监测；所述DRX活跃时间依赖所述第一信令；所述第一信令是较低层信令；在所述第一信令被接收之前第三信令被接收，所述第三信令被用于触发发送所述第一随机接入前导。
作为一个实施例，所述第二通信设备410装置包括：一种存储计算机可读指令程序的存储器，所述计算机可读指令程序在由至少一个处理器执行时产生动作，所述动作包括：在第二小区上接收第一随机接入前导；其中，所述第一随机接入前导被用于确定针对所述第二小区的定时提前值；其中，第一RRC信令被接收，所述第一RRC信令指示DRX活跃时间，所述DRX活跃时间被应用于至少所述第二小区；在第一小区上第一信令被接收，所述第一信令指示切换(switch)至所述第二小区；在所述第二小区上的所述DRX活跃时间内PDCCH被监测；所述DRX活跃时间依赖所述第一信令；所述第一信令是较低层信令；在所述第一信令被接收之前第三信令被接收，所述第三信令被用于触发发送所述第一随机接入前导。
作为一个实施例，所述第一通信设备450对应本申请中的第一节点，所述第二通信设备410对应本申请中的第二节点。
作为一个实施例，所述第一通信设备450对应本申请中的第一节点，所述第二通信设备410对应本申请中的第三节点。
作为一个实施例，所述第一通信设备450是一个UE。
作为一个实施例，所述第一通信设备450是一个中继。
作为一个实施例，所述第二通信设备410是一个基站设备。
作为一个实施例，所述第二通信设备410是一个基站的分布单元。
作为一个实施例，所述天线420，所述发射器418，所述多天线发射处理器471，所述发射处理器416 或所述控制器/处理器475中的至少之一被用于发送本申请中的第一RRC信令。
作为一个实施例，所述天线452，所述接收器454，所述多天线接收处理器458，所述接收处理器456或所述控制器/处理器459中的至少之一被用于接收本申请中的第一RRC信令。
作为一个实施例，所述天线420，所述发射器418，所述多天线发射处理器471，所述发射处理器416或所述控制器/处理器475中的至少之一被用于发送本申请中的第一信令。
作为一个实施例，所述天线452，所述接收器454，所述多天线接收处理器458，所述接收处理器456或所述控制器/处理器459中的至少之一被用于接收本申请中的第一信令。
作为一个实施例，所述天线452，所述发射器454，所述多天线发射处理器457，所述发射处理器468或所述控制器/处理器459中的至少之一被用于发送本申请中的第二信令。
作为一个实施例，所述天线420，所述接收器418，所述多天线接收处理器472，所述接收处理器470或所述控制器/处理器475中的至少之一被用于接收本申请中的第二信令。
作为一个实施例，所述天线420，所述发射器418，所述多天线发射处理器471，所述发射处理器416或所述控制器/处理器475中的至少之一被用于发送本申请中的第三信令。
作为一个实施例，所述天线452，所述接收器454，所述多天线接收处理器458，所述接收处理器456或所述控制器/处理器459中的至少之一被用于接收本申请中的第三信令。
作为一个实施例，所述天线452，所述发射器454，所述多天线发射处理器457，所述发射处理器468或所述控制器/处理器459中的至少之一被用于发送本申请中的第二RRC信令。
作为一个实施例，所述天线420，所述接收器418，所述多天线接收处理器472，所述接收处理器470或所述控制器/处理器475中的至少之一被用于接收本申请中的第二RRC信令。
实施例5
实施例5示例了根据本申请的一个实施例的无线信号传输流程图，如附图5所示。在附图5中，第一节点N51和第二节点N52通过无线接口通信，第一节点N51和第三节点N53通过无线接口通信。特别说明的是本示例中的顺序并不限制本申请中的信号传输顺序和实施的顺序。
对于第一节点N51，在步骤S511中接收第一RRC信令；在步骤S512中接收第三信令；在步骤S513中发送第一随机接入前导；在步骤S514中接收第一信令；在步骤S515中发送第二信令；在步骤S516中接收PDCCH；在步骤S517中发送第二RRC信令。
对于第二节点N52，在步骤S521中发送第一RRC信令；在步骤S522中发送第三信令；在步骤S523中发送第一信令；在步骤S524中接收第二信令。
对于第三节点N53，在步骤S531中接收第一随机接入前导；在步骤S532中发送PDCCH；在步骤S533中接收第二RRC信令。
在实施例5中，接收第一RRC信令，所述第一RRC信令指示DRX活跃时间，所述DRX活跃时间被应用于至少第二小区；在第一小区上接收第一信令，所述第一信令指示切换(switch)至所述第二小区；在所述第二小区上的所述DRX活跃时间内监测PDCCH；其中，所述DRX活跃时间依赖所述第一信令；所述第一信令是较低层信令；在所述第一小区上发送第二信令，所述第二信令指示正确接收所述第一信令；在所述第二小区上发送第二RRC信令，所述第二RRC信令指示RRC重配置完成；其中，所述PDCCH被监测到，所述PDCCH指示所述第二RRC信令占用的时频资源；所述第一信令指示针对所述第二小区的定时提前值；所述第一信令不触发在所述第二小区上发送随机接入前导；在接收所述第一信令之前接收第三信令；作为接收所述第三信令的响应，在所述第二小区上发送第一随机接入前导；其中，所述第一随机接入前导被用于确定针对所述第二小区的所述定时提前值。
实施例5中，所述第一节点N51和所述第二节点N52之间通过至少第一小区传输；所述第一节点N51和所述第三节点N53之间通过第二小区传输。
作为一个实施例，所述第二节点N52和所述第三节点N53共址(co-located)。
作为一个实施例，所述第二节点N52和所述第三节点N53是同一个节点。
作为一个实施例，所述第二节点N52和所述第三节点N53是同一个gNB-DU。
作为一个实施例，所述第二节点N52和所述第三节点N53是同一个收发点(Transmit/Receive Point， TRP)。
作为一个实施例，所述第二节点N52和所述第三节点N53是不同的节点。
作为一个实施例，所述第二节点N52和所述第三节点N53是不同的gNB-DU。
作为一个实施例，所述第二节点N52和所述第三节点N53是不同的gNB-CU。
作为一个实施例，所述第二节点N52为所述第一小区的基站。
作为一个实施例，所述第二节点N52为所述第一小区的收发点。
作为一个实施例，所述第三节点N53为所述第二小区的基站。
作为一个实施例，所述第三节点N53为所述第二小区的收发点。
作为一个实施例，所述第二节点N52为所述第一节点N51小区切换之前的服务小区的基站。
作为一个实施例，所述第三节点N53为所述第一节点N51小区切换之后的服务小区的基站。
作为一个实施例，在小区切换之前，所述第二节点N52为所述第一节点的特殊小区的服务基站，所述第三节点N53为所述第一节点的辅小区(secondary cell，SCell)的服务基站；在小区切换之后，所述第二节点N52为所述第一节点的辅小区的服务基站，所述第三节点N53为所述第一节点的特殊小区的服务基站。
作为一个实施例，在小区切换之前，所述第一小区为所述第一节点N51的特殊小区，所述第二小区为所述第一节点N51的辅小区；在小区切换之后，所述第一小区为所述第一节点N51的辅小区，所述第二小区为所述第一节点N51的特殊小区。
作为一个实施例，在接收所述第一信令之前接收第三信令。
作为一个实施例，在所述第一节点的服务小区上接收所述第三信令。
作为一个实施例，在所述第一小区上接收所述第三信令。
作为一个实施例，所述第三信令为RRC子层之下的协议层信令。
作为一个实施例，所述第三信令为物理层信令。
作为一个实施例，所述第三信令为DCI。
作为一个实施例，所述第三信令为PDCCH(Physical Downlink Control CHannel，物理下行控制信道)order(命令)。
作为一个实施例，所述第三信令为增强的(enhanced)PDCCH order。
作为一个实施例，所述第三信令指示所述第二小区。
作为一个实施例，所述第三信令包括一个小区标识，所述一个小区标识被用于标识(identify)所述第二小区。
作为一个实施例，作为接收所述第三信令的响应，在所述第二小区上发送第一随机接入(random access,RA)前导(preamble)。
作为一个实施例，所述第三信令指示所述第一随机接入前导。
作为一个实施例，所述第三信令指示在所述第二小区上发送所述第一随机接入前导的空口资源。
作为一个实施例，所述第三信令指示在所述第二小区上发送所述第一随机接入前导的RACH(Random Access CHannel，随机接入信道)时机(occasion)。
作为一个实施例，所述第三信令指示在所述第二小区上用于确定RACH时机的SS(Synchronization Signals，同步信号)/PBCH(Physical Broadcast Channel，物理广播信道)索引。
作为一个实施例，所述第三信令指示在所述第二小区上用于发送PRACH(Physical Random Access CHannel，物理随机接入信道)的上行载波，所述上行载波包括NUL(Normal UpLink，普通上行链路)和SUL(Supplementary UpLink，补充上行链路)。
作为一个实施例，所述第三信令指示所述第一随机接入前导是基于非竞争(contention-free)的。
作为一个实施例，所述第一随机接入前导是一个特征序列。
作为一个实施例，所述第一随机接入前导是一个Gold序列。
作为一个实施例，所述第一随机接入前导是一个M序列。
作为一个实施例，所述第一随机接入前导是一个ZC(Zadoff–Chu)序列。
作为一个实施例，所述第一节点被配置或被指示针对所述第一随机接入前导没有对应的随机接入响应 (Random Access Response，RAR)。
作为一个实施例，所述第一节点被配置或被指示发送所述第一随机接入前导之后不开启随机接入响应窗口。
作为一个实施例，所述第一随机接入前导不属于一个随机接入过程。
作为一个实施例，所述第一随机接入前导被用于确定针对所述第二小区的定时提前值(Timing Advance Value)。
作为一个实施例，所述第一信令指示针对所述第二小区的所述定时提前值。
作为一个实施例，所述第一信令指示针对至少所述第二小区的所述定时提前值。
作为一个实施例，所述定时提前值针对多个小区，所述多个小区包括所述第二小区。
作为一个实施例，所述多个小区属于同一个TAG(Timing Advance Group，定时提前组)。
作为一个实施例，所述定时提前值被应用于所述TAG中包括的小区。
作为一个实施例，所述第一信令隐式指示针对所述第二小区的所述定时提前值。
作为一个实施例，所述第一信令指示针对所述第二小区的所述定时提前值与针对源小区(source cell)的定时提前值相同。
作为上述实施例的一个子实施例，所述源小区为所述第一小区。
作为上述实施例的一个子实施例，所述源小区为所述第一节点的服务小区。
作为一个实施例，所述第一信令指示针对所述第二小区的所述定时提前值与STAG(Secondary Timing Advance Group，辅定时提前组)中包括的小区的定时提前值相同。
作为一个实施例，所述第一信令指示针对所述第二小区的所述定时提前值与PTAG(Primary Timing Advance Group，主定时提前组)中包括的小区的定时提前值相同。
作为一个实施例，所述第一信令显式指示针对所述第二小区的所述定时提前值。
作为一个实施例，所述第一信令包括针对所述第二小区的所述定时提前值。
作为一个实施例，所述第一信令包括TA(Timing Advance，定时提前)域(field)，所述TA域指示针对所述第二小区的所述定时提前值。
作为一个实施例，所述定时提前值为0。
作为一个实施例，所述定时提前值不为0。
作为一个实施例，所述第一小区与所述第二小区属于不同的TAG。
作为一个实施例，所述第一小区与所述第二小区属于同一个TAG。
作为一个实施例，所述第一信令指示的针对所述第二小区的所述定时提前值被用于与所述第二小区维持上行时间对齐(Uplink Time Alignment)。
作为一个实施例，在接收并应用针对所述第二小区的所述定时提前值之后，所述第一节点认为和所述第二小区上行时间对齐。
作为一个实施例，在所述第一小区上发送第二信令，所述第二信令指示正确接收所述第一信令。
作为一个实施例，所述第二信令为物理层信令。
作为一个实施例，所述第二信令为HARQ(Hybrid Automatic Repeat Request，混合自动重传请求)-ACK(ACKnowledgement，确定)反馈。
作为一个实施例，所述第二信令为ACK。
作为一个实施例，所述第二信令为对正确接收一个传输块(transport block，TB)的反馈，所述一个传输块中包括所述第一信令。
作为一个实施例，所述第二信令为对正确接收一个MAC PDU(Protocol Data Unit，协议数据单元)的反馈，所述一个MAC PDU中包括至少一个MAC subPDU(子协议数据单元)，所述至少一个MAC subPDU中包括所述第一信令。
作为一个实施例，当发送完所述第二信令之后，所述第一节点断开与所述第一小区的连接。
作为一个实施例，所述断开与所述第一小区的连接包括：停止在所述第一小区上监测PDCCH。
作为一个实施例，所述断开与所述第一小区的连接包括：停止在所述第一小区上发送上行信道或上行信号，所述上行信道包括PUCCH和PUSCH，所述上行信号包括SRS(Sounding Reference Signal，探测参 考信号)。
作为一个实施例，所述断开与所述第一小区的连接包括：针对所述第一小区的RRC配置被停止应用。
作为一个实施例，所述第一信令不触发在小区切换过程中在所述第二小区上发送随机接入前导。
作为一个实施例，所述第一信令不触发在小区切换过程中在所述第二小区上发起随机接入过程。
作为一个实施例，所述第一节点在所述第二小区上的所述DRX活跃时间监测到所述PDCCH。
作为一个实施例，所述PDCCH在所述第二小区上被监测到。
作为一个实施例，所述PDCCH指示一个新传输(new transmission)。
作为一个实施例，所述PDCCH调度下行传输。
作为一个实施例，所述PDCCH调度PDSCH(Physical Downlink Shared CHannel，物理下行共享信道)接收。
作为一个实施例，所述PDCCH调度上行传输。
作为一个实施例，所述PDCCH调度PUSCH发送。
作为一个实施例，所述PDCCH指示第二RRC信令所占用的时频资源，所述第二RRC信令指示RRC重配置完成。
作为一个实施例，所述PDCCH指示小区切换成功。
作为一个实施例，当接收到所述PDCCH时，所述第一节点确定小区切换成功。
作为一个实施例，所述PDCCH指示用于新传输的时频资源。
作为一个实施例，当所述PDCCH中包括的NDI(New Data Indication，新数据指示)与所述第一节点在接收所述PDCCH之前最近接收的一个DCI信令中包括的NDI相比被反转(toggled)时指示一个新传输；其中，所述PDCCH包括的HARQ(Hybrid Automatic Repeat Request，混合自动重传请求)进程号(process ID)与接收所述PDCCH之前最近接收的所述一个DCI信令中包括的HARQ进程号相同。
作为上述实施例的一个子实施例，接收所述PDCCH之前最近接收的所述一个DCI信令中包括的所述NDI为0，所述PDCCH中包括的所述NDI为1，指示所述PDCCH中包括的所述NDI被反转。
作为上述实施例的一个子实施例，接收所述PDCCH之前最近接收的所述一个DCI信令中包括的所述NDI为1，所述PDCCH中包括的所述NDI为0，指示所述PDCCH中包括的所述NDI被反转。
作为一个实施例，当所述PDCCH指示SPS(Semi-Persistent Scheduling，半持续调度)激活时，所述PDCCH被用于调度一个新传输。
作为一个实施例，当所述PDCCH指示多播(multicast)SPS激活时，所述PDCCH被用于调度一个新传输。
作为一个实施例，当所述PDCCH指示配置授予类型2激活时，所述PDCCH被用于调度一个新传输。
作为一个实施例，当所述PDCCH指示配置授予类型2的配置副链路授予激活时，所述第DCCH被用于调度一个新传输。
作为一个实施例，针对一个传输块(TB)的第一次传输为一个新传输。
作为一个实施例，针对一个传输块(TB)没有以前的(previous)NDI为一个新传输。
作为一个实施例，在所述第二小区上发送所述第二RRC信令。
作为一个实施例，在所述PDCCH指示的所述时频资源上发送所述第二RRC信令。
作为一个实施例，所述第二RRC信令为RRCReconfigurationComplete(RRC重配置完成)。
作为一个实施例，所述第二RRC信令被用于响应所述第一RRC信令。
作为一个实施例，所述第二RRC信令指示小区切换成功。
作为一个实施例，当接收到所述第二RRC信令时，所述第三节点N53确定小区切换成功。
作为一个实施例，所述PDCCH为在所述第二小区上接收到的第一个PDCCH。
作为一个实施例，所述第二RRC信令包括在由所述PDCCH调度的第一个上行MAC PDU中。
作为一个实施例，所述第一发射机，在所述第二小区上发送第二RRC信令，所述第二RRC信令指示RRC重配置完成；其中，所述第一RRC信令配置发送所述第二RRC信令的空口资源。
作为上述实施例的一个子实施例，所述第二RRC信令占用的空口资源是配置授予(configured grant，CG)。
实施例6
实施例6示例了根据本申请的一个实施例的回程网络中的信号传输流程图，如附图6所示。在附图6中，第二节点N62和第三节点N63通过回程(backhaul)网络通信。
对于第二节点N62，在步骤S621中接收第一消息，在步骤S622中发送第二消息。
对于第三节点N63，在步骤S631中发送第一消息，在步骤S632中接收第二消息。
实施例6示意了所述第二节点N62和所述第三节点N63之间以回程网络连接的场景，实施例6不排除所述第二节点N62和所述第三节点N63之间以其它接口连接的场景，所述其它接口包括但不限于内部接口。
作为一个实施例，所述第二节点N62为所述第一小区的服务基站，所述第三节点N63为所述第二小区的服务基站。
作为一个实施例，所述第二节点N62为小区切换中的源小区的gNB-DU，所述第三节点N63为小区切换中的目标小区的gNB-DU，所述目标小区为所述第二小区，所述源小区包括所述第一小区。
作为一个实施例，所述第二节点N62和所述第三节点N63之间可以直连，也可以通过gNB-CU互连。
作为一个实施例，所述第三节点N63将所述第二小区的配置发送给所述第二节点N62并由所述第二节点N62通过所述第一RRC信令将所述第二小区的至少部分配置发送给所述第一节点。
作为一个实施例，所述第二小区的所述配置包括监测所述PDCCH的USS。
作为一个实施例，所述第二小区的所述配置包括监测所述PDCCH的CSS。
作为一个实施例，所述第二小区的所述配置包括所述第一随机接入前导。
作为一个实施例，所述第二小区的所述配置包括在所述第二小区上发送所述第一随机接入前导的空口资源。
作为一个实施例，所述第三信令触发在所述第二小区上发送所述第一随机接入前导，所述第一随机接入前导被所述第三节点N63用于确定针对所述第二小区的所述定时提前值；所述第三节点N63向所述第二节点N62发送第一消息，所述第一消息包括针对所述第二小区的所述定时提前值，所述第二节点N62通过所述第一信令指示针对所述第二小区的所述定时提前值使所述第一节点获得和所述第二小区的上行时间对齐。
作为一个实施例，所述第二节点N62发送所述第一信令指示小区切换；所述第二节点N62在发送所述第一信令之后向所述第三节点N63发送第二消息。
作为一个实施例，所述第二消息指示小区切换至所述第二小区。
作为一个实施例，所述第二消息指示可以通过所述第二小区执行上下行传输。
作为一个实施例，所述第二消息指示所述第二小区发送所述PDCCH。
作为一个实施例，所述第二消息指示为所述第二小区选择的波束。
作为一个实施例，所述第二消息指示通过为所述第二小区选择的波束发送所述PDCCH。
作为一个实施例，所述第二消息指示通过为所述第二小区选择的波束接收所述第二RRC信令。
作为一个实施例，所述第一消息和所述第二消息都是回程网络接口消息，其中，所述第二节点N62和所述第三节点N63之间通过回程网络连接。
作为一个实施例，所述第一消息和所述第二消息都是内部消息，其中，所述第二节点N62和所述第三节点N63之间通过内部接口连接。
实施例7
实施例7示例了根据本申请的一个实施例的DRX活跃时间示意图，如附图7所示。
作为一个实施例，所述DRX活跃时间从接收到所述第一信令开始。
作为一个实施例，接收到所述第一信令包括：所述第一信令占用的时域资源的结束时刻。
作为一个实施例，接收到所述第一信令包括：所述第一信令占用的时域资源所在的符号的结束时刻。
作为一个实施例，接收到所述第一信令包括：所述第一信令占用的时域资源所在的时隙的结束时刻。
作为一个实施例，接收到所述第一信令包括：所述第一信令占用的时域资源所在的子帧的结束时刻。
作为一个实施例，所述DRX活跃时间从接收到所述第一信令之后的第一个符号开始。
作为一个实施例，所述DRX活跃时间从接收到所述第一信令之后的第一个时隙开始。
作为一个实施例，所述DRX活跃时间从接收到所述第一信令之后的第一个子帧开始。
作为一个实施例，所述DRX活跃时间从接收到所述第一信令之后的第一个下行符号开始。
作为一个实施例，所述DRX活跃时间到接收到所述PDCCH为止。
作为一个实施例，所述DRX活跃时间为接收所述第一信令之后到接收到所述PDCCH之间的时间。
作为一个实施例，所述DRX活跃时间为接收到所述第一信令之后的第一个下行符号开始到接收到所述PDCCH之间的时间。
实施例7示意了所述DRX活跃时间为接收到所述第一信令之后到接收到所述PDCCH之间的时间。
实施例8
实施例8示例了根据本申请的一个实施例的DRX活跃时间示意图，如附图8所示。
作为一个实施例，所述DRX活跃时间从发送完所述第二信令开始。
作为一个实施例，所述DRX活跃时间从发送完所述第二信令之后的第一个符号开始。
作为一个实施例，所述DRX活跃时间从发送完所述第二信令之后的第一个时隙开始。
作为一个实施例，所述DRX活跃时间从发送完所述第二信令之后的第一个子帧开始。
作为一个实施例，所述DRX活跃时间从发送完所述第二信令之后的第一个下行符号开始。
作为一个实施例，所述DRX活跃时间为发送完所述第二信令之后到接收到所述PDCCH之间的时间。
作为一个实施例，所述DRX活跃时间为发送完所述第二信令之后的第一个下行符号开始到接收到所述PDCCH之间的时间。
作为一个实施例，所述第二信令的发送时间依赖所述第一信令。
作为一个实施例，所述第二信令的发送时间由调度所述第一信令的PDCCH指示。
作为一个实施例，所述第二信令的发送时间距离所述第一信令的接收时间由调度所述第一信令的PDCCH指示。
实施例8示意了所述DRX活跃时间为发送完所述第二信令之后到接收到所述PDCCH之间的时间。
实施例9
实施例9示例了根据本申请的一个实施例的DRX活跃时间示意图，如附图9所示。
作为一个实施例，所述第一信令指示所述第二小区的所述配置被应用。
作为一个实施例，所述第一信令隐式指示所述第二小区的所述配置被应用。
作为一个实施例，所述第二小区的所述配置被应用包括：所述第二小区的所述配置代替所述第一节点的当前配置。
作为一个实施例，所述第二小区的所述配置被应用包括：利用所述第二小区的所述配置执行RRC重配置。
作为一个实施例，所述第二小区的所述配置被应用包括：利用所述第二小区的所述配置执行RRC重配置，且不执行L2(Layer 2，层2)重置(reset)。
作为一个实施例，所述第二小区的所述配置被应用的时间由UE自行确定。
作为一个实施例，所述第二小区的所述配置被应用的时间根据UE能力自行确定。
作为一个实施例，所述第二小区的所述配置被应用距离所述第一信令的接收之间的时间间隔不大于Q1个符号；其中，所述Q1为非负整数。
作为一个实施例，所述DRX活跃时间从所述第二小区的所述配置被应用开始。
作为一个实施例，所述DRX活跃时间从所述第二小区的所述配置被应用开始到接收到所述PDCCH之间的时间。
实施例9示意了所述DRX活跃时间为所述第二小区的所述配置被应用之后到接收到所述PDCCH之间的时间。
实施例10
实施例11示例了根据本申请的一个实施例的第一节点中的处理装置的结构框图，如附图10所示。在附图10中，第一节点处理装置1000包括第一接收机1001和第一发射机1002；所述第一节点1000是一个UE。
在实施例10中，第一接收机1001，接收第一RRC信令，所述第一RRC信令指示DRX活跃时间，所述DRX活跃时间被应用于至少第二小区；在第一小区上接收第一信令，所述第一信令指示切换(switch)至所述第二小区；在所述第二小区上的所述DRX活跃时间内监测PDCCH；其中，所述DRX活跃时间依赖所述第一信令；所述第一信令是较低层信令。
作为一个实施例，所述DRX活跃时间依赖所述第一信令包括：所述DRX活跃时间从接收到所述第一信令开始。
作为一个实施例，第一发射机1002，在所述第一小区上发送第二信令，所述第二信令指示正确接收所述第一信令；其中，所述DRX活跃时间依赖所述第一信令包括：所述DRX活跃时间从发送完所述第二信令开始。
作为一个实施例，所述DRX活跃时间依赖所述第一信令包括：所述DRX活跃时间从所述第二小区的配置被应用开始；其中，所述第一信令指示所述第二小区的所述配置被应用。
作为一个实施例，第一发射机1002，在所述第二小区上发送第二RRC信令，所述第二RRC信令指示RRC重配置完成；其中，所述PDCCH被监测到，所述PDCCH指示所述第二RRC信令占用的时频资源。
作为一个实施例，所述第一信令指示针对所述第二小区的定时提前值；所述第一信令不触发在所述第二小区上发送随机接入前导。
作为一个实施例，所述第一信令指示针对所述第二小区的定时提前值；所述第一接收机1001，在接收所述第一信令之前接收第三信令；第一发射机1002，作为接收所述第三信令的响应，在所述第二小区上发送第一随机接入前导；其中，所述第一随机接入前导被用于确定针对所述第二小区的所述定时提前值。
作为一个实施例，所述第一接收机1001包括本申请附图4中的接收器454(包括天线452)，接收处理器456，多天线接收处理器458和控制器/处理器459。
作为一个实施例，所述第一接收机1001包括本申请附图4中的接收器454(包括天线452)，接收处理器456，多天线接收处理器458或控制器/处理器459中的至少之一。
作为一个实施例，所述第一发射机1002包括本申请附图4中的发射器454(包括天线452)，发射处理器468，多天线发射处理器457和控制器/处理器459。
作为一个实施例，所述第一发射机1002包括本申请附图4中的发射器454(包括天线452)，发射处理器468，多天线发射处理器457或控制器/处理器459中的至少之一。
实施例11
实施例11示例了根据本申请的一个实施例的第二节点中的处理装置的结构框图，如附图11所示。在附图11中，第二节点处理装置1100包括第二接收机1101和第二发射机1102；所述第二节点1100是一个基站或gNB-DU。
在实施例11中，第二发射机，发送第一RRC信令，所述第一RRC信令指示DRX活跃时间，所述DRX活跃时间被应用于至少第二小区；在第一小区上发送第一信令，所述第一信令指示切换(switch)至所述第二小区；其中，在所述第二小区上的所述DRX活跃时间内PDCCH被监测；所述DRX活跃时间依赖所述第一信令；所述第一信令是较低层信令。
作为一个实施例，所述DRX活跃时间依赖所述第一信令包括：所述DRX活跃时间从所述第一信令被接收到开始。
作为一个实施例，第二接收机1101，在所述第一小区上接收第二信令，所述第二信令指示所述第一信令被正确接收；其中，所述DRX活跃时间依赖所述第一信令包括：所述DRX活跃时间从所述第二信令被发送完开始。
作为一个实施例，所述DRX活跃时间依赖所述第一信令包括：所述DRX活跃时间从所述第二小区的配置被应用开始；其中，所述第一信令指示所述第二小区的所述配置被应用。
作为一个实施例，所述第一信令指示针对所述第二小区的定时提前值；所述第一信令不触发在所述第二小区上发送随机接入前导。
作为一个实施例，所述第一信令指示针对所述第二小区的定时提前值；所述第二发射机1102，在发送所述第一信令之前发送第三信令；其中，所述第三信令被用于触发在所述第二小区上发送第一随机接入前导；所述第一随机接入前导被用于确定针对所述第二小区的所述定时提前值。
作为一个实施例，所述第一信令指示针对所述第二小区的定时提前值；所述第二接收机1101，接收第一消息，所述第一消息指示针对所述第二小区的所述定时提前值。
作为一个实施例，所述第二发射机1102，发送第二消息，所述第二消息指示切换至所述第二小区。
作为一个实施例，所述第二接收机1101包括本申请附图4中的接收器418(包括天线420)，接收处理器470，多天线接收处理器472和控制器/处理器475。
作为一个实施例，所述第二接收机1101包括本申请附图4中的接收器418(包括天线420)，接收处理器470，多天线接收处理器472和控制器/处理器475中的至少之一。
作为一个实施例，所述第二发射机1102包括本申请附图4中的发射器418(包括天线420)，发射处理器416，多天线发射处理器471和控制器/处理器475。
作为一个实施例，所述第二发射机1102包括本申请附图4中的发射器418(包括天线420)，发射处理器416，多天线发射处理器471或控制器/处理器475中的至少之一。
实施例12
实施例12示例了根据本申请的一个实施例的第三节点中的处理装置的结构框图，如附图12所示。在附图12中，第三节点处理装置1200包括第三接收机1201和第三发射机1202；所述第三节点1200是一个基站或gNB-DU。
在实施例12中，第三接收机1201，在第二小区上接收第一随机接入前导；其中，所述第一随机接入前导被用于确定针对所述第二小区的定时提前值；其中，第一RRC信令被接收，所述第一RRC信令指示DRX活跃时间，所述DRX活跃时间被应用于至少所述第二小区；在第一小区上第一信令被接收，所述第一信令指示切换(switch)至所述第二小区；在所述第二小区上的所述DRX活跃时间内PDCCH被监测；所述DRX活跃时间依赖所述第一信令；所述第一信令是较低层信令；在所述第一信令被接收之前第三信令被接收，所述第三信令被用于触发发送所述第一随机接入前导。
作为一个实施例，所述DRX活跃时间依赖所述第一信令包括：所述DRX活跃时间从所述第一信令被接收到开始。
作为一个实施例，所述DRX活跃时间依赖所述第一信令包括：所述DRX活跃时间从第二信令被发送完开始；其中，在所述第一小区上所述第二信令被接收，所述第二信令指示所述第一信令被正确接收。
作为一个实施例，所述DRX活跃时间依赖所述第一信令包括：所述DRX活跃时间从所述第二小区的配置被应用开始；其中，所述第一信令指示所述第二小区的所述配置被应用。
作为一个实施例，第三发射机1202，在所述第二小区上发送所述PDCCH；所述第三接收机，在所述第二小区上接收第二RRC信令，所述第二RRC信令指示RRC重配置完成；其中，所述PDCCH指示所述第二RRC信令占用的时频资源。
作为一个实施例，所述第一信令指示针对所述第二小区的所述定时提前值；所述第一信令不触发在所述第二小区上发送随机接入前导。
作为一个实施例，所述第一信令指示针对所述第二小区的所述定时提前值；所述第三发射机1202，发送第一消息，所述第一消息指示针对所述第二小区的所述定时提前值。
作为一个实施例，所述第三接收机1201，接收第二消息，所述第二消息指示切换至所述第二小区。
作为一个实施例，所述第三接收机1201包括本申请附图4中的接收器418(包括天线420)，接收处理器470，多天线接收处理器472和控制器/处理器475。
作为一个实施例，所述第三接收机1201包括本申请附图4中的接收器418(包括天线420)，接收处理器470，多天线接收处理器472和控制器/处理器475中的至少之一。
作为一个实施例，所述第三发射机1202包括本申请附图4中的发射器418(包括天线420)，发射处 理器416，多天线发射处理器471和控制器/处理器475。
作为一个实施例，所述第三发射机1202包括本申请附图4中的发射器418(包括天线420)，发射处理器416，多天线发射处理器471或控制器/处理器475中的至少之一。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可以通过程序来指令相关硬件完成，所述程序可以存储于计算机可读存储介质中，如只读存储器，硬盘或者光盘等。可选的，上述实施例的全部或部分步骤也可以使用一个或者多个集成电路来实现。相应的，上述实施例中的各模块单元，可以采用硬件形式实现，也可以由软件功能模块的形式实现，本申请不限于任何特定形式的软件和硬件的结合。本申请中的第一类通信节点或者UE或者终端包括但不限于手机，平板电脑，笔记本，上网卡，低功耗设备，eMTC(enhanced Machine Type Communication，增强机器类通信)设备，NB-IoT设备，车载通信设备，飞行器，飞机，无人机，遥控飞机等无线通信设备。本申请中的第二类通信节点或者基站或者网络侧设备包括但不限于宏蜂窝基站，微蜂窝基站，家庭基站，中继基站，eNB，gNB，传输接收节点TRP(Transmission and Reception Point，发射和接收点)，中继卫星，卫星基站，空中基站等无线通信设备。
以上所述，仅为本申请的较佳实施例而已，并非用于限定本申请的保护范围。凡在本申请的精神和原则之内，所做的任何修改，等同替换，改进等，均应包含在本申请的保护范围之内。

Claims (28)

  1. 一种被用于无线通信的第一节点，其特征在于，包括：
    第一接收机，接收第一RRC信令，所述第一RRC信令指示DRX活跃时间，所述DRX活跃时间被应用于至少第二小区；在第一小区上接收第一信令，所述第一信令指示切换(switch)至所述第二小区；在所述第二小区上的所述DRX活跃时间内监测PDCCH；
    其中，所述DRX活跃时间依赖所述第一信令；所述第一信令是较低层信令。
  2. 根据权利要求1所述的第一节点，其特征在于，所述DRX活跃时间依赖所述第一信令包括：所述DRX活跃时间从接收到所述第一信令开始。
  3. 根据权利要求1所述的第一节点，其特征在于，包括：
    第一发射机，在所述第一小区上发送第二信令，所述第二信令指示正确接收所述第一信令；
    其中，所述DRX活跃时间依赖所述第一信令包括：所述DRX活跃时间从发送完所述第二信令开始。
  4. 根据权利要求1所述的第一节点，其特征在于，所述DRX活跃时间依赖所述第一信令包括：所述DRX活跃时间从所述第二小区的配置被应用开始；
    其中，所述第一信令指示所述第二小区的所述配置被应用。
  5. 根据权利要求1至4中任一权利要求所述的第一节点，其特征在于，包括:
    第一发射机，在所述第二小区上发送第二RRC信令，所述第二RRC信令指示RRC重配置完成；
    其中，所述PDCCH被监测到，所述PDCCH指示所述第二RRC信令占用的时频资源。
  6. 根据权利要求1至5中任一权利要求所述的第一节点，其特征在于，所述第一信令指示针对所述第二小区的定时提前值；所述第一信令不触发在所述第二小区上发送随机接入前导。
  7. 根据权利要求6所述的第一节点，其特征在于，包括：
    所述第一接收机，在接收所述第一信令之前接收第三信令；
    第一发射机，作为接收所述第三信令的响应，在所述第二小区上发送第一随机接入前导；
    其中，所述第一随机接入前导被用于确定针对所述第二小区的所述定时提前值。
  8. 一种被用于无线通信的第二节点，其特征在于，包括：
    第二发射机，发送第一RRC信令，所述第一RRC信令指示DRX活跃时间，所述DRX活跃时间被应用于至少第二小区；在第一小区上发送第一信令，所述第一信令指示切换(switch)至所述第二小区；
    其中，在所述第二小区上的所述DRX活跃时间内PDCCH被监测；所述DRX活跃时间依赖所述第一信令；所述第一信令是较低层信令。
  9. 根据权利要求8所述的第二节点，其特征在于，所述DRX活跃时间依赖所述第一信令包括：所述DRX活跃时间从所述第一信令被接收到开始。
  10. 根据权利要求8所述的第二节点，其特征在于，包括：
    第二接收机，在所述第一小区上接收第二信令，所述第二信令指示所述第一信令被正确接收；
    其中，所述DRX活跃时间依赖所述第一信令包括：所述DRX活跃时间从所述第二信令被发送完开始。
  11. 根据权利要求8所述的第二节点，其特征在于，所述DRX活跃时间依赖所述第一信令包括：所述DRX活跃时间从所述第二小区的配置被应用开始；
    其中，所述第一信令指示所述第二小区的所述配置被应用。
  12. 根据权利要求8至11中任一权利要求所述的第二节点，其特征在于，包括：
    第三发射机，在所述第二小区上发送所述PDCCH；
    第三接收机，在所述第二小区上接收第二RRC信令，所述第二RRC信令指示RRC重配置完成；
    其中，所述PDCCH指示所述第二RRC信令占用的时频资源。
  13. 根据权利要求8至12中任一权利要求所述的第二节点，其特征在于，所述第一信令指示针对所述第二小区的定时提前值；所述第一信令不触发在所述第二小区上发送随机接入前导。
  14. 根据权利要求13所述的第二节点，其特征在于，包括：
    所述第二发射机，在发送所述第一信令之前发送第三信令；
    其中，所述第三信令被用于触发在所述第二小区上发送第一随机接入前导；所述第一随机接入前导被用于确定针对所述第二小区的所述定时提前值。
  15. 一种被用于无线通信的第一节点中的方法，其特征在于，包括：
    接收第一RRC信令，所述第一RRC信令指示DRX活跃时间，所述DRX活跃时间被应用于至少第二小区；
    在第一小区上接收第一信令，所述第一信令指示切换(switch)至所述第二小区；
    在所述第二小区上的所述DRX活跃时间内监测PDCCH；
    其中，所述DRX活跃时间依赖所述第一信令；所述第一信令是较低层信令。
  16. 根据权利要求15所述的第一节点中的方法，其特征在于，所述DRX活跃时间依赖所述第一信令包括：所述DRX活跃时间从接收到所述第一信令开始。
  17. 根据权利要求15所述的第一节点中的方法，其特征在于，包括：
    在所述第一小区上发送第二信令，所述第二信令指示正确接收所述第一信令；
    其中，所述DRX活跃时间依赖所述第一信令包括：所述DRX活跃时间从发送完所述第二信令开始。
  18. 根据权利要求15所述的第一节点中的方法，其特征在于，所述DRX活跃时间依赖所述第一信令包括：所述DRX活跃时间从所述第二小区的配置被应用开始；
    其中，所述第一信令指示所述第二小区的所述配置被应用。
  19. 根据权利要求15至18中任一权利要求所述的第一节点中的方法，其特征在于，包括:
    在所述第二小区上发送第二RRC信令，所述第二RRC信令指示RRC重配置完成；
    其中，所述PDCCH被监测到，所述PDCCH指示所述第二RRC信令占用的时频资源。
  20. 根据权利要求15至19中任一权利要求所述的第一节点中的方法，其特征在于，所述第一信令指示针对所述第二小区的定时提前值；所述第一信令不触发在所述第二小区上发送随机接入前导。
  21. 根据权利要求20所述的第一节点中的方法，其特征在于，包括：
    在接收所述第一信令之前接收第三信令；
    作为接收所述第三信令的响应，在所述第二小区上发送第一随机接入前导；
    其中，所述第一随机接入前导被用于确定针对所述第二小区的所述定时提前值。
  22. 一种被用于无线通信的第二节点中的方法，其特征在于，包括：
    发送第一RRC信令，所述第一RRC信令指示DRX活跃时间，所述DRX活跃时间被应用于至少第二小区；
    在第一小区上发送第一信令，所述第一信令指示切换(switch)至所述第二小区；
    其中，在所述第二小区上的所述DRX活跃时间内PDCCH被监测；所述DRX活跃时间依赖所述第一信令；所述第一信令是较低层信令。
  23. 根据权利要求22所述的第二节点中的方法，其特征在于，所述DRX活跃时间依赖所述第一信令包括：所述DRX活跃时间从所述第一信令被接收到开始。
  24. 根据权利要求22所述的第二节点中的方法，其特征在于，包括：
    在所述第一小区上接收第二信令，所述第二信令指示所述第一信令被正确接收；
    其中，所述DRX活跃时间依赖所述第一信令包括：所述DRX活跃时间从所述第二信令被发送完开始。
  25. 根据权利要求22所述的第二节点中的方法，其特征在于，所述DRX活跃时间依赖所述第一信令包括：所述DRX活跃时间从所述第二小区的配置被应用开始；
    其中，所述第一信令指示所述第二小区的所述配置被应用。
  26. 根据权利要求22至25中任一权利要求所述的第二节点中的方法，其特征在于，包括：
    在所述第二小区上发送所述PDCCH；
    在所述第二小区上接收第二RRC信令，所述第二RRC信令指示RRC重配置完成；
    其中，所述PDCCH指示所述第二RRC信令占用的时频资源。
  27. 根据权利要求22至26中任一权利要求所述的第二节点中的方法，其特征在于，所述第一信令指示针对所述第二小区的定时提前值；所述第一信令不触发在所述第二小区上发送随机接入前导。
  28. 根据权利要求27所述的第二节点中的方法，其特征在于，包括：
    在发送所述第一信令之前发送第三信令；
    其中，所述第三信令被用于触发在所述第二小区上发送第一随机接入前导；所述第一随机接入前导被用于确定针对所述第二小区的所述定时提前值。
PCT/CN2024/099146 2023-06-15 2024-06-14 一种被用于无线通信的方法和装置 Ceased WO2024255826A1 (zh)

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