WO2021043078A1 - 切换指示方法、切换方法、装置、服务节点、终端及介质 - Google Patents
切换指示方法、切换方法、装置、服务节点、终端及介质 Download PDFInfo
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- WO2021043078A1 WO2021043078A1 PCT/CN2020/112005 CN2020112005W WO2021043078A1 WO 2021043078 A1 WO2021043078 A1 WO 2021043078A1 CN 2020112005 W CN2020112005 W CN 2020112005W WO 2021043078 A1 WO2021043078 A1 WO 2021043078A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
- H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
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- 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
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- 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
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- 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
- This application relates to a wireless communication network, for example, to a handover instruction method, handover method, device, service node, terminal, and medium.
- Dormancy behavior means that the user terminal (User Equipment, UE) stops monitoring the Physical Downlink Control Channel (PDCCH), but continues to perform other activities, such as channel state information (CSI) measurement, automatic Gain control (Automatic Gain Control, AGC) and beam management (Beam Management, BM), etc.
- CSI channel state information
- AGC Automatic Gain Control
- Beam Management Beam Management
- BM Beam Management
- dynamically instructing the UE to switch between the sleep state and the normal state requires a large signaling overhead, or when the UE has the ability to configure multiple bandwidth parts (Bandwidth Part, BWP), the BWP switching technology can be used
- BWP switching technology can be used
- the present application provides a switching instruction method, switching method, device, service node, terminal, and medium, so as to improve the applicability of state switching and improve switching efficiency.
- the embodiment of the present application provides a handover indication method, including:
- Radio Resource Control RRC
- the embodiment of the present application also provides a handover method, including:
- An embodiment of the present application also provides a handover indication device, including:
- the target parameter determination module is set to determine the target parameter according to the configuration parameters of RRC;
- the instruction module is configured to send a control message to the terminal, the control message including the target parameter, and the control message is used to instruct the terminal to switch between the sleep state and the normal state according to the target parameter.
- An embodiment of the present application also provides a switching device, including:
- a receiving module configured to receive a control message, the control message including the target parameter determined according to the configuration parameter of the RRC;
- the switching module is set to switch between the sleep state and the normal state according to the target parameter.
- the embodiment of the present application also provides a service node, including:
- One or more processors are One or more processors;
- Storage device set to store one or more programs
- the one or more processors When the one or more programs are executed by the one or more processors, the one or more processors implement the switching instruction method described above.
- the embodiment of the present application also provides a terminal, including:
- One or more processors are One or more processors;
- Storage device set to store one or more programs
- the one or more processors When the one or more programs are executed by the one or more processors, the one or more processors implement the aforementioned switching method.
- the embodiment of the present application also provides a computer-readable storage medium, and a computer program is stored on the computer-readable storage medium, and when the program is executed by a processor, the above-mentioned switching instruction method or switching method is realized.
- FIG. 1 is a flowchart of a handover indication method provided by an embodiment
- FIG. 2 is a schematic diagram of a BWP configuration parameter restriction operation provided by an embodiment
- FIG. 3 is a schematic diagram of another BWP configuration parameter restriction operation provided by an embodiment
- FIG. 4 is a flowchart of a handover method provided by an embodiment
- FIG. 5 is a schematic structural diagram of a handover indication device provided by an embodiment
- FIG. 6 is a schematic structural diagram of a switching device provided by an embodiment
- FIG. 7 is a schematic structural diagram of a service node provided by an embodiment
- FIG. 8 is a schematic structural diagram of a terminal provided by an embodiment.
- the UE monitors the PDCCH in a certain period in the normal state, and stops monitoring the PDCCH in the dormant state, but still continues to perform other activities, such as CSI measurement, AGC, and BM.
- the switching delay mainly depends on the T activation_time (including the Medium Access Control-Control Element (MAC-CE) analysis delay, radio frequency (Radio Frequency) , RF) wake-up delay, AGC adjustment delay and time-frequency offset synchronization delay, etc.).
- the RF on the secondary cell Secondary Cell, Scell
- Scell secondary Cell
- the UE's monitoring cycle of PDCCH can be dynamically modified through Downlink Control Information (DCI) signaling.
- DCI Downlink Control Information
- the monitoring cycle in the normal state is relatively short and the monitoring is more frequent, while the monitoring cycle in the dormant state is relatively short. Long, the monitoring is relatively sparse, but this dynamic indication method requires a large signaling overhead and is low in efficiency; it can also be based on the BWP switching technology to switch the UE from the dormant BWP to the normal (active) BWP, This requires the UE to have the ability to configure multiple BWPs, but this ability to configure multiple BWPs is based on the band (band) granularity, that is, the configuration of multiple BWPs is not supported on some frequency bands.
- band band
- BWP Mathematical Numerology
- BWP-Samenumerolog BWP Same Mathematical Numerology
- This embodiment provides a handover indication method.
- Parameters are configured through RRC signaling, and target parameters are determined according to the configuration parameters.
- the target parameters are sent to the terminal through a control message, thereby instructing the terminal to perform state switching, where the control message is used to indicate to the terminal.
- the target parameter the signaling overhead is small, and the method can be applied even when the UE does not have the ability to configure multiple BWPs, which improves the applicability of state switching. By efficiently indicating the state switching to the terminal, it improves Switching efficiency.
- Fig. 1 is a flowchart of a handover indication method provided by an embodiment.
- the handover indication method of this embodiment is applied to the serving node. As shown in FIG. 1, the method includes step 110 and step 120.
- the target parameter is determined according to the configuration parameter of the radio resource control RRC.
- configuration parameters for instructing the UE to perform state switching can be configured through RRC signaling, where the state switching includes switching from the sleep state to the normal state, and from the normal state to the sleep state.
- the configuration parameters can be used to configure the PDCCH monitoring period of the UE on the Scell.
- two PDCCH monitoring periods are configured on the Scell, one long period and one short period, the long period corresponds to the sleep state, and the short period corresponds to the normal state.
- the control message further instructs the UE to switch the PDCCH monitoring period. For example, 1 bit is used to switch the PDCCH monitoring period on one Scell.
- the UE switches to the sleep state, otherwise the UE switches to the normal state; configuration parameters are also available For BWPs that are configured for switching, for example, the BWP in the dormant state and the BWP in the normal state are configured.
- the control message can further instruct the UE to switch from the dormant BWP to the activated BWP, so as to switch from the dormant state to the normal state, or through control
- the message further instructs the UE to switch from the active BWP to the dormant BWP, thereby switching from the normal state to the dormant state.
- the configuration parameters can be one set or multiple sets, and the serving node can determine the target parameter and indicate it to the UE according to actual needs.
- step 120 a control message is sent to the terminal, where the control message includes the target parameter, and the control message is used to instruct the terminal to switch between the sleep state and the normal state according to the target parameter.
- control message may be DCI
- the indication field set in the DCI may indicate the BWP used by the Scell, or indicate whether to monitor the PDCCH in each secondary cell, or indicate switching to monitor the monitoring period and offset of the PDCCH.
- the method of this embodiment does not require the UE to have the ability to configure multiple BWPs, and the control message is only used to indicate the target parameter, and the signaling overhead is small.
- the configuration parameters include a first set of parameters and a second set of parameters; the first set of parameters include the monitoring period and offset of the PDCCH; the second set of parameters includes at least two BWPs, wherein at least one BWP corresponds to In the dormant state.
- two sets of configuration parameters can be configured through RRC.
- the first set of configuration parameters is used to indicate the UE's monitoring period and offset of the PDCCH, where the offset is used to indicate the time slot for monitoring in one monitoring period. For example, if a monitoring period includes 10 time slots and the offset is 3, the PDCCH is monitored in the third time slot of the 10 time slots in the monitoring period.
- the second set of configuration parameters includes at least two BWPs, of which at least one BWP is in a dormant state, and the second set of configuration parameters is indicated to the UE as a target parameter, and the UE can implement state switching through BWP switching accordingly.
- the determining the target parameter according to the configuration parameters of the radio resource control RRC includes: selecting the target parameter from the first set of parameters and the second set of parameters according to at least one of the following information: frequency band information, Terminal capability information, new air interface NR version information supported by the serving node or terminal, and Scell activation delay requirement information.
- the serving node can select one of the two sets of configuration parameters as the target parameter. For example, when the UE has the ability to configure multiple BWPs in the current frequency band and supports BWP switching , You can select the second set of configuration parameters as the target parameters, otherwise, you can select the first set of configuration parameters as the target parameters. For another example, in the case that the UE has a low-delay demand service, the Scell activation delay demand is relatively high, and the serving node can select the first set of configuration parameters as the target parameter.
- control message is sent through a primary cell (Primary Cell, Pcell) or a scheduling cell.
- Primary Cell Primary Cell, Pcell
- scheduling cell a scheduling cell
- control message includes a target parameter indication field; the number of bits in the target parameter indication field is m-1, and m-1 bits correspond to m-1 secondary cells respectively; or, the target The number of bits in the parameter indication field is twice that of m-1, and every 2 bits corresponds to a secondary cell; where m represents the maximum number of carriers supported by the NR system.
- the control message indicates the target parameter to the terminal through a target parameter indication field with a certain number of bits.
- the target parameter indication field is used to indicate the switching of different PDCCH monitoring periods and offsets ;
- the target parameter indication field is used to indicate the switching of different BWPs.
- m-1 bits may be used to indicate the target parameters of m-1 secondary cells, and each bit corresponds to a secondary cell; or, m-1 may be indicated by 2*(m-1) bits.
- the target parameter of each secondary cell corresponds to one secondary cell every 2 bits, where m represents the maximum number of carriers supported by the NR system.
- control message includes DCI, and a new DCI format defined in a power saving application scenario may be used.
- the configuration parameters include configuration parameters of a virtual BWP; the virtual BWP corresponds to a BWP in a normal state, and the first configuration parameter between the virtual BWP and a corresponding BWP in the normal state is different; The second configuration parameter between the virtual BWP and the corresponding BWP in the normal state is the same.
- the serving node configures the configuration parameters of the virtual BWP through RRC and sends it to the UE.
- the virtual BWP is bound to a BWP in a normal state. Configuring the bound two BWPs is equivalent to configuring only one BWP. Some configuration parameters (second configuration parameters) are the same, and some configuration parameters (first configuration parameters) are different, thereby improving the switching efficiency between the two BWPs.
- the first configuration parameter includes at least one of the following: PDCCH search space, control resource set (Control Resource Set, CORESET) configuration parameter, channel state information reference signal (Channel State Information-Reference Signal, CSI-RS) ) Configuration parameters, Aperiodic Tracking Reference Signal (A-TRS) configuration parameters, Sounding Reference Signal (SRS) configuration parameters, and BM configuration parameters.
- control resource set Control Resource Set, CORESET
- channel state information reference signal Channel State Information-Reference Signal
- CSI-RS Channel State Information-Reference Signal
- A-TRS Aperiodic Tracking Reference Signal
- SRS Sounding Reference Signal
- the second configuration parameter includes at least one of the following: bandwidth, subcarrier spacing (Subcarrier Spacing, SCS), and center frequency.
- bandwidth subcarrier spacing
- SCS subcarrier Spacing
- the BWP is the same as the BWP index (Identity, ID) of the corresponding BWP in the normal state.
- the first configuration parameter is a dedicated BWP (Dedicated) parameter
- the second configuration parameter is a common BWP parameter.
- the specific parameters and sub-parameters configured between the first BWP and the second BWP may be different, and the common parameters are the same.
- BWP-specific parameters include at least one of the following: physical downlink shared channel configuration parameters (Physical Downlink Shared Channel-configuration, PDSCH-config), physical downlink control channel configuration parameters (PDCCH-config), semi-persistent transmission configuration parameters (Semi -Persistent Scheduling-configuration, SPS-config), radio link monitoring configuration parameters (Radio Link Monitoring-config), physical uplink data channel configuration parameters (PUSCH-config), physical uplink control channel configuration parameters (PUCCH-config), configuration Authorization configuration parameters (Configured Grant-config), sounding reference signal configuration parameters (SRS-config), beam failure recovery configuration parameters (Beam Failure Recovery-config);
- BWP common parameters include at least one of the following: physical downlink control channel common configuration parameters (PDCCH-config common), physical downlink data channel shared configuration parameters (PDSCH-config common), general parameters (Generic Parameters), physical uplink control channel shared configuration parameters (PUCCH-config common), physical uplink data channel shared configuration parameters (PUSCH-config common), the common configuration parameters of
- the target parameters include: the configuration parameters of the virtual BWP and the corresponding configuration parameters of the BWP in the normal state.
- the method when the target parameter includes the second set of parameters, the method further includes: receiving the capability information of the set capability reported by the terminal; and performing the processing of the at least two BWPs according to the capability information of the set capability
- the configuration parameter limits the operation, wherein the at least two BWPs include a first BWP and a second BWP.
- the setting capability refers to the energy-saving capability of the UE in an application scenario that saves energy.
- the energy-saving capability information by limiting the configuration parameters, the configuration parameter ranges of the BWP before and after the switching overlap, thereby reducing the change of the configuration parameters during the BWP switching process, improving the efficiency of BWP switching, and thereby improving the efficiency of state switching.
- the switching mode between at least two BWPs is dynamic BWP switching.
- the UE can configure at most 4 uplink BWPs and 4 downlink BWPs on each carrier. At the same time, each UE can only have one activated uplink BWP and one activated downlink BWP.
- the configuration on each BWP can be different, and the UE can dynamically adjust and activate the BWP according to service conditions. For example, the UE is configured with 2 downlink BWPs: the bandwidth of BWP1 is smaller than the bandwidth of BWP2.
- BWP2 can be activated for downlink service transmission, and when the UE has a small downlink service volume, it can be switched to BWP2 to save energy consumption.
- BWP switching There are three main methods for BWP switching: 1) DCI switching, the UE determines the target uplink BWP and target downlink BWP of the handover according to the bandwidth part indicator field in DCI format 0_1 and DCI format 1_1; 2) RRC signaling switching, UE according to RRC signaling The firstActiveUplinkBWP-Id and firstActiveDownlinkBWP-Id in the command determine the target uplink BWP and target downlink BWP for handover; 3) BWP inactivity timer switching, when the UE’s inactivity timer expires, the UE switches the downlink BWP to The default downstream BWP is switched to the downstream BWP whose BWPID is defaultDownlinkBWP-Id.
- the switching mode between at least two BWPs may be DCI switching.
- the configuration parameter restriction operation includes at least one of the following: BWP configuration parameter restriction operation, reference signal configuration parameter restriction operation, antenna port configuration parameter restriction operation, SRS antenna switching configuration parameter restriction operation, and transmission configuration instruction (Transmission Configuration Indication) Indicator (TCI) State configuration parameters restrict operations.
- the BWP configuration parameter limiting operation includes: limiting the overlap of the frequency domain positions of the first BWP and the second BWP, wherein the bandwidth of the first BWP is smaller than the bandwidth of the second BWP.
- up to 4 BWPs can be set.
- Fig. 2 is a schematic diagram of a BWP configuration parameter restriction operation provided by an embodiment.
- two BWPs are configured through RRC.
- the frequency domain positions of the first BWP and the second BWP overlap, where the oblique area is the first BWP, and the outermost box represents the second BWP.
- the bandwidth of the first BWP is smaller than the bandwidth of the second BWP.
- Fig. 3 is a schematic diagram of another BWP configuration parameter restriction operation provided by an embodiment.
- three BWPs are configured through RRC.
- the vertical line area represents the first BWP
- the oblique line area represents the second BWP
- the outermost box represents the third BWP
- the first BWP the second BWP
- the frequency domain position overlaps with the third BWP, where the bandwidth of the first BWP is smaller than the bandwidth of the second BWP, and the bandwidth of the second BWP is smaller than the bandwidth of the third BWP.
- the reference signal configuration parameter restriction operation includes: restricting the time-frequency domain position of the first BWP reference signal to be a subset of the time-frequency domain position of the second BWP reference signal.
- the reference signal includes at least one of the following: channel state reference signal (CSI-RS), tracking reference signal (Tracking Reference Signal, TRS), sounding reference signal (SRS), demodulation reference signal (De-Modulation Reference Signal, DMRS), Phase-tracking Reference Signal (PTRS), Aperiodic-Tracking Reference Signal (A-TRS), Aperiodic-Channel State Information-Reference Signal (A-CSI-RS) and Semi-persistent Channel state reference signal (Semi-Persistent Scheduling-Channel State Information-Reference Signal, SPS-CSI-RS).
- CSI-RS channel state reference signal
- TRS tracking reference signal
- SRS sounding reference signal
- DMRS demodulation reference signal
- DMRS Demodulation Reference Signal
- PTRS Phase-tracking Reference Signal
- the antenna port configuration parameter limitation operation includes: limiting the number of antenna ports of the first BWP to be less than or equal to the number of antenna ports of the second BWP.
- the antenna port includes at least one of the following: PDCCH antenna port, PDSCH antenna port, CSI-RS antenna port, synchronization signal broadcast channel antenna port (SS/PBCH), PUSCH antenna port, PUCCH antenna port, DMRS antenna port, SRS antenna port, PRACH antenna port (physical random access channel); for example, the CSI-RS antenna port of the second BWP configuration is 2 ports, which are 3000 and 3001 respectively, and the CSI-RS antenna port of the first BWP configuration can only be 1 port ( 3000) or 2 ports (3000 and 3001);
- the TCI state configuration parameter restriction operation includes: sharing the TCI state of the first BWP and the second BWP.
- the SRS antenna switching configuration parameter limitation operation includes: limiting the SRS antenna switching configuration parameter of the first BWP to be a subset of the SRS antenna switching configuration parameter of the second BWP.
- the setting capability is determined according to at least one of terminal type and frequency band information.
- the frequency band information can be described as FR frequency range 1 or FR frequency range 2.
- the foregoing embodiment limits the configuration parameters to overlap the configuration parameter ranges of the BWP before and after the switching, thereby reducing the change of the configuration parameters during the BWP switching process, improving the efficiency of BWP switching, and thereby improving the efficiency of state switching.
- the above-mentioned BWP configuration parameter restriction operation is also applicable to the application scenario of BWP handover.
- the configuration parameters of BWP are restricted according to the setting ability of the UE.
- the configuration parameters during the BWP handover process are reduced. The change to improve the efficiency of BWP switching.
- the above-mentioned BWP configuration parameter restriction operation is performed only when the dynamic BWP is switched.
- Fig. 4 is a flowchart of a handover method provided by an embodiment. As shown in FIG. 4, the handover method provided in this embodiment includes step 210 and step 220. For technical details that are not described in detail in this embodiment, reference may be made to any of the foregoing embodiments.
- step 210 a control message is received, the control message including the target parameter determined according to the configuration parameter of the RRC.
- step 220 switch between the sleep state and the normal state according to the target parameter.
- the UE when the target parameter indicated by the serving node is the first set of configuration parameters, the UE changes the PDCCH monitoring period according to the target parameter, and monitors the PDCCH according to the offset indicated by the target parameter. If the indicated monitoring period is greater than the current UE If the indicated monitoring period is less than the current monitoring period of the UE, the UE switches to the normal state. In the case that the target parameter indicated by the serving node is the second set of configuration parameters, the UE can switch from the virtual BWP to the BWP in the normal state according to the target parameter to realize the state switching.
- the UE implements state switching according to the target parameters in the control message by receiving the control message sent by the serving node.
- the control message is used to indicate the target parameter, and the signaling overhead is small, that is, the UE does not have multiple configurations.
- this method can also be applied, which improves the applicability of state switching, and improves the switching efficiency by efficiently instructing the terminal to switch the state.
- the method further includes: reporting the capability information of the set capability to the service node.
- the set capability refers to the energy-saving capability and low-complexity capability of the UE in the energy-saving application scenario.
- the service node is enabled to perform the operation of the first BWP and the second BWP.
- the configuration parameter limits the operation. By limiting the configuration parameters, the BWP configuration parameter ranges before and after the switching overlap, thereby reducing the change of the configuration parameters during the BWP switching process, improving the BWP switching efficiency, and then improving the efficiency of the state switching.
- the configuration parameters include a first set of parameters and a second set of parameters; the first set of parameters include the monitoring period and offset of the PDCCH; the second set of parameters includes at least two bandwidth part BWPs, where at least one BWP corresponds to In the dormant state.
- the target parameter is selected by the service node from the first set of parameters and the second set of parameters according to at least one of the following information:
- Frequency band information Frequency band information, terminal capability information, new air interface NR version information supported by the serving node or terminal, and secondary cell activation delay requirement information.
- control message is received through the Pcell or the scheduling cell.
- control message includes a target parameter indication field
- the number of bits in the target parameter indication field is m-1, and m-1 bits correspond to m-1 secondary cells respectively; or, the number of bits in the target parameter indication field is twice that of m-1, and every 2 bits corresponds to A secondary cell; where m represents the maximum number of carriers supported by the NR system.
- control message includes DCI, and a new DCI format defined in an application scenario that saves energy can be used.
- the configuration parameters include configuration parameters of a virtual BWP; the virtual BWP corresponds to a BWP in a normal state, and the first configuration parameter and its sub-parameters between the virtual BWP and the corresponding BWP in the normal state
- the parameters may be configured differently; the second configuration parameter between the virtual BWP and the corresponding BWP in the normal state is the same.
- the first configuration parameter includes at least one of the following: PDCCH search space, CORESET configuration parameter, CSI-RS configuration parameter, A-TRS configuration parameter, sounding reference signal SRS configuration parameter, and BM configuration parameter.
- the second configuration parameter includes at least one of the following: bandwidth, subcarrier spacing SCS, and center frequency point.
- the virtual BWP is the same as the BWP index of the corresponding BWP in the normal state.
- the first configuration parameter is a BWP-specific parameter
- the second configuration parameter is a BWP common parameter.
- the target parameters include: configuration parameters of the virtual BWP and corresponding configuration parameters of the BWP in the normal state.
- the target parameter when the target parameter includes the second set of parameters, it further includes:
- the capability information of the set capability reported to the service node so that the serving node performs the configuration parameter restriction operation on the first BWP and the second BWP according to the capability information of the set capability, where the first BWP is the BWP before handover , The second BWP is the BWP after the handover.
- the configuration parameter ranges of the BWP before and after the switching overlap, thereby reducing the change of the configuration parameters during the BWP switching process, improving the efficiency of BWP switching, and thereby improving the efficiency of state switching.
- the configuration parameter restriction operation includes at least one of the following: BWP configuration parameter restriction operation, reference signal configuration parameter restriction operation, antenna port configuration parameter restriction operation, SRS antenna switching configuration parameter restriction operation, and transmission configuration indication TCI status configuration Parameter limit operation.
- the switching mode between the at least two BWPs is dynamic BWP switching.
- the BWP configuration parameter limiting operation includes: limiting the overlap of the frequency domain positions of the first BWP and the second BWP, wherein the bandwidth of the first BWP is smaller than the bandwidth of the second BWP.
- the reference signal configuration parameter restriction operation includes: restricting the time-frequency domain position of the first BWP reference signal to be a subset of the time-frequency domain position of the second BWP reference signal.
- the antenna port configuration parameter limitation operation includes: limiting the number of antenna ports of the first BWP to be less than or equal to the number of antenna ports of the second BWP.
- the transmission configuration indication status configuration parameter restriction operation includes: sharing the transmission configuration indication status of the first BWP and the second BWP.
- the SRS antenna switching configuration parameter limitation operation includes: limiting the SRS antenna switching configuration parameter of the first BWP to be a subset of the SRS antenna switching configuration parameter of the second BWP.
- the setting capability is determined according to at least one of terminal type and frequency band information.
- the serving node (for example, gNB) sends RRC configuration parameters to the UE, where the configuration parameters include Pcell and Scell configuration parameters, and the target parameter is the configuration of multiple BWPs on the Scell, for example, two BWPs, respectively It is BWP1 and BWP2.
- the BWPs is configured for cross-carrier scheduling.
- BWP1 can increase the CSI measurement period on BWP1 by configuring parameters to make the UE more energy-saving.
- BWP2 is a self-scheduled BWP.
- BWP1 In the case that the currently activated BWP on the Scell is BWP1, if a service arrives and the Scell needs to be activated quickly, the UE will blindly check the control channel on the activated BWP on the Pcell or other scheduled Scell according to the target parameters indicated by the serving node. The message completes the BWP switch, that is, the state change.
- BWP1 can be configured to a smaller bandwidth, so that the terminal is more energy-efficient, and BWP2 can be configured to a large bandwidth.
- the RRC message may not configure the index number of the search space for the BWP of the Scell.
- the terminal can also be configured with CSI-RS resource configuration, CSI calculation configuration, and channel resource configuration for CSI feedback through RRC;
- the types of CSI-RS include periodic CSI-RS and semi-static CSI-RS.
- CSI feedback types include periodic feedback, semi-continuous feedback and aperiodic feedback.
- periodic CSI and semi-persistent CSI feedback are fed back on the Physical Uplink Control Channel (PUCCH); aperiodic CSI and semi-persistent CSI feedback are fed back on the Physical Uplink Share Channel (PUSCH). ) For feedback.
- PUCCH Physical Uplink Control Channel
- PUSCH Physical Uplink Share Channel
- periodic CSI and periodic CSI-RS are configured and activated by RRC, semi-persistent CSI_RS and semi-persistent CSI on PUCCH are activated by MAC-CE; aperiodic CSI-RS, aperiodic CSI and semi-persistent on PUSCH CSI is triggered or activated by DCI.
- the BWP may be an uplink BWP or a downlink BWP.
- control message includes DCI
- serving node sends the DCI message to the UE.
- the UE determines which Scells need to complete the BWP handover based on the newly added indication field in the DCI message; for example, the newly added indication field is configured as 010000100100111, indicating that the number 2/7/10/13/14/15 corresponds to The Scell needs to complete the BWP switch, that is, the sleep state is switched to the normal state, and the PDCCH is detected on the respective Scell after the switch is completed.
- the newly added indication field is configured as 010000100100111, indicating that the number 2/7/10/13/14/15 corresponds to The Scell needs to complete the BWP switch, that is, the sleep state is switched to the normal state, and the PDCCH is detected on the respective Scell after the switch is completed.
- the serving node when the current data packet drops suddenly, can instruct the Scell to perform BWP switching through the BWP indication field in the DCI message and return to the dormant state.
- the UE implements state switching according to the target parameter in the control message by receiving the control message sent by the serving node.
- the control message is only used to indicate the target parameter, and the signaling overhead is small, even if the UE does not have multiple configurations.
- this method can also be applied, which improves the applicability of state switching. By efficiently instructing the terminal to switch the state, the switching efficiency is improved.
- Fig. 5 is a schematic structural diagram of a handover indication device provided by an embodiment.
- the switching instruction device includes: a target parameter determination module 310 and an instruction module 320.
- the target parameter determining module 310 is configured to determine the target parameter according to the configuration parameters of the radio resource control RRC;
- the instruction module 320 is configured to send a control message to the terminal, the control message including the target parameter, and the control message is used to instruct the terminal to switch between the sleep state and the normal state according to the target parameter.
- parameters are configured through RRC signaling, and target parameters are determined according to the configuration parameters.
- the target parameters are sent to the terminal through a control message, thereby instructing the terminal to perform state switching.
- the control message is only used to indicate the target parameter.
- the signaling overhead is small, and the method can be applied even when the UE does not have the ability to configure multiple BWPs, which improves the applicability of state switching, and improves the switching efficiency by efficiently indicating state switching to the terminal.
- the configuration parameters include a first set of parameters and a second set of parameters
- the first set of parameters includes the monitoring period and offset of the physical downlink control channel PDCCH;
- the second set of parameters includes at least two bandwidth part BWPs, where at least one BWP corresponds to a sleep state.
- the target parameter determination module 310 is set to:
- Frequency band information Frequency band information, terminal capability information, new air interface NR version information supported by the serving node or terminal, and secondary cell activation delay requirement information.
- control message is sent through the primary cell or the scheduling cell.
- control message includes a target parameter indication field
- the number of bits of the target parameter indication field is m-1, and the m-1 bits correspond to m-1 secondary cells respectively; or,
- the number of bits of the target parameter indication field is twice that of m-1, and every 2 bits corresponds to a secondary cell; where m represents the maximum number of carriers supported by the NR system.
- control message includes downlink control information DCI.
- the configuration parameters include configuration parameters of a virtual BWP
- the virtual BWP corresponds to a BWP in a normal state, and the first configuration parameter between the virtual BWP and the corresponding BWP in the normal state is different; the second configuration parameter between the virtual BWP and the BWP in the corresponding normal state the same.
- the first configuration parameter includes at least one of the following:
- control resource set CORESET configuration parameters channel state information reference signal CSI-RS configuration parameters, aperiodic tracking reference signal configuration parameters, sounding reference signal configuration parameters, and BM configuration parameters.
- the second configuration parameter includes at least one of the following: bandwidth, subcarrier spacing SCS, and center frequency point.
- the virtual BWP is the same as the BWP index of the corresponding BWP in the normal state.
- the first configuration parameter is a BWP-specific parameter
- the second configuration parameter is a BWP common parameter
- the target parameter includes:
- the handover indication device further includes:
- the capability information receiving module is set to receive the capability information of the set capability reported by the terminal;
- the restriction module is configured to perform configuration parameter restriction operations on the at least two BWPs according to the capability information of the set capability, where the at least two BWPs include a first BWP and a second BWP.
- the configuration parameter restriction operation includes at least one of the following: BWP configuration parameter restriction operation, reference signal configuration parameter restriction operation, antenna port configuration parameter restriction operation, SRS antenna switching configuration parameter restriction operation, and transmission configuration indication TCI State configuration parameters restrict operations.
- the switching mode between the at least two BWPs is dynamic BWP switching.
- the BWP configuration parameter limiting operation includes: limiting the overlap of the frequency domain positions of the first BWP and the second BWP, wherein the bandwidth of the first BWP is smaller than the bandwidth of the second BWP.
- the reference signal configuration parameter restriction operation includes:
- the time-frequency domain position of the reference signal of the first BWP is restricted to be a subset of the time-frequency domain position of the second BWP reference signal.
- the antenna port configuration parameter restriction operation includes:
- the transmission configuration indication state configuration parameter restriction operation includes:
- the SRS antenna switching configuration parameter restriction operation includes:
- the SRS antenna switching configuration parameter of the first BWP is restricted to be a subset of the SRS antenna switching configuration parameter of the second BWP.
- the setting capability is determined according to at least one of terminal type and frequency band information.
- the setting capability refers to the energy-saving capability of the UE in an application scenario that saves energy.
- the energy-saving capability information by limiting the configuration parameters, the configuration parameter ranges of the BWP before and after the switching overlap, thereby reducing the change of the configuration parameters during the BWP switching process, improving the efficiency of BWP switching, and thereby improving the efficiency of state switching.
- Fig. 6 is a schematic structural diagram of a switching device provided by an embodiment. As shown in FIG. 6, the switching device includes: a receiving module 410 and a switching module 420.
- the receiving module 410 is configured to receive a control message, where the control message includes the target parameter determined according to the configuration parameter of the RRC;
- the switching module 420 is configured to switch between the sleep state and the normal state according to the target parameter.
- the switching module 420 is specifically configured as follows:
- the repeated transmission information includes the number of repeated transmissions and the sounding reference signal resource index, and there are at least two sounding reference signal resources, repeat transmissions for a set number of times or half of the set number of times are performed through each sounding reference signal resource .
- the switching device further includes:
- the reporting module is configured to report the capability information of the set capability to the service node.
- the serving node is enabled to perform the configuration parameter restriction operation on the at least two BWPs according to the capability information of the set capability, where the at least two BWPs include a first BWP and a second BWP.
- the switching device of this embodiment realizes state switching according to the target parameter in the control message by receiving the control message sent by the serving node.
- the control message is only used to indicate the target parameter, and the signaling overhead is small, even if the UE does not have configuration
- this method can also be applied, which improves the applicability of state switching. By efficiently instructing the terminal to switch the state, the switching efficiency is improved.
- the configuration parameters include a first set of parameters and a second set of parameters; the first set of parameters include PDCCH monitoring period and offset; the second set of parameters include at least two bandwidth parts BWP, where, At least one BWP corresponds to the dormant state.
- the target parameter is selected by the service node from the first set of parameters and the second set of parameters according to at least one of the following information:
- Frequency band information Frequency band information, terminal capability information, new air interface NR version information supported by the serving node or terminal, and secondary cell activation delay requirement information.
- control message is received through the primary cell or the scheduling cell.
- control message includes a target parameter indication field
- the number of bits of the target parameter indication field is m-1, and the m-1 bits correspond to m-1 secondary cells respectively; or,
- the number of bits of the target parameter indication field is twice that of m-1, and every 2 bits corresponds to a secondary cell; where m represents the maximum number of carriers supported by the NR system.
- control message includes DCI, and a new DCI format defined in an application scenario that saves energy can be used.
- the configuration parameters include configuration parameters of a virtual BWP
- the virtual BWP corresponds to a BWP in a normal state, and the first configuration parameter between the virtual BWP and the corresponding BWP in the normal state is different; the second configuration parameter between the virtual BWP and the BWP in the corresponding normal state the same.
- the first configuration parameter includes at least one of the following:
- PDCCH search space CORESET configuration parameters, CSI-RS configuration parameters, A-TRS configuration parameters, sounding reference signal SRS configuration parameters, and BM configuration parameters.
- the second configuration parameter includes at least one of the following: bandwidth, subcarrier spacing SCS, and center frequency point.
- the virtual BWP is the same as the BWP index of the corresponding BWP in the normal state.
- the first configuration parameter is a BWP-specific parameter
- the second configuration parameter is a BWP common parameter.
- the target parameters include: configuration parameters of the virtual BWP and corresponding configuration parameters of the BWP in a normal state.
- the configuration parameter ranges of the BWP before and after the switching overlap, thereby reducing the change of the configuration parameters during the BWP switching process, improving the efficiency of BWP switching, and thereby improving the efficiency of state switching.
- the setting capability is determined according to at least one of terminal type and frequency band information.
- the embodiment of the present application also provides a service node.
- the switching instruction method may be executed by a switching instruction device, which may be implemented in software and/or hardware, and integrated in the service node.
- Fig. 7 is a schematic structural diagram of a service node provided by an embodiment.
- a service node provided in this embodiment includes a processor 510 and a storage device 520.
- FIG. 7 uses a processor 510 as an example.
- the processor 510 and the storage device 520 in the device may be connected by a bus or other methods. Connect as an example.
- the one or more programs are executed by the one or more processors 510, so that the one or more processors implement the handover instruction method described in any of the foregoing embodiments.
- the storage device 520 in the service node can be used to store one or more programs.
- the programs can be software programs, computer-executable programs, and modules, such as the switching instruction method in the embodiment of the present invention.
- Corresponding program instructions/modules (for example, the modules in the switching instruction device shown in FIG. 5 include: a target parameter determination module 310 and an instruction module 320).
- the processor 510 executes various functional applications and data processing of the service node by running the software programs, instructions, and modules stored in the storage device 520, that is, implements the switching instruction method in the foregoing method embodiment.
- the storage device 520 mainly includes a storage program area and a storage data area.
- the storage program area can store an operating system and an application program required by at least one function; the storage data area can store data created according to the use of the device, etc. (as in the above implementation) The configuration parameters and target parameters in the example).
- the storage device 520 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices.
- the storage device 520 may further include a memory provided remotely with respect to the processor 510, and these remote memories may be connected to the service node through a network. Examples of the aforementioned networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.
- the following operations are implemented: determine the target parameter according to the configuration parameters of the radio resource control RRC; send a control message to the terminal, so The control message includes the target parameter, and the control message is used to instruct the terminal to switch between the sleep state and the normal state according to the target parameter.
- the embodiment of the present application also provides a terminal.
- the switching method may be executed by a switching device, which may be implemented by software and/or hardware, and integrated in the terminal.
- FIG. 8 is a schematic structural diagram of a terminal provided by an embodiment.
- a terminal provided in this embodiment includes: a processor 610 and a storage device 620.
- one processor 610 is taken as an example.
- the processor 610 and the storage device 620 in the device may be connected by a bus or other methods.
- FIG. Connect as an example.
- the one or more programs are executed by the one or more processors 610, so that the one or more processors implement the switching method described in any one of the foregoing embodiments.
- the storage device 620 in the terminal is used as a computer-readable storage medium and can be used to store one or more programs.
- the programs can be software programs, computer-executable programs, and modules, such as those corresponding to the switching method in the embodiment of the present invention.
- Program instructions/modules (for example, the modules in the switching device shown in FIG. 6 include: a receiving module 410 and a switching module 420).
- the processor 610 executes various functional applications and data processing of the terminal by running software programs, instructions, and modules stored in the storage device 620, that is, implements the switching method in the foregoing method embodiment.
- the storage device 620 mainly includes a storage program area and a storage data area.
- the storage program area can store an operating system and an application program required by at least one function; the storage data area can store data created according to the use of the device, etc. (as in the above implementation) Control messages, configuration parameters, etc. in the example).
- the storage device 620 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices.
- the storage device 620 may further include a memory remotely provided with respect to the processor 610, and these remote memories may be connected to the terminal through a network. Examples of the aforementioned networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.
- the following operations are implemented: receiving a control message, where the control message includes the target parameter determined according to the RRC configuration parameter; The target parameter switches between the sleep state and the normal state.
- the terminal proposed in this embodiment and the handover method proposed in the above embodiment belong to the same inventive concept.
- the embodiment of the present application also provides a storage medium containing computer-executable instructions, and the computer-executable instructions are used to execute a switching instruction method or a switching method when executed by a computer processor.
- this application can be implemented by software and general hardware, or can be implemented by hardware.
- the technical solution of the present application can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as a computer floppy disk, read-only memory (ROM), Random Access Memory (RAM), flash memory (FLASH), hard disk or optical disk, etc., including multiple instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) to execute any of this application
- a computer device which can be a personal computer, server, or network device, etc.
- the block diagram of any logic flow in the drawings of the present application may represent program steps, or may represent interconnected logic circuits, modules, and functions, or may represent a combination of program steps and logic circuits, modules, and functions.
- the computer program can be stored on the memory.
- the memory can be of any type suitable for the local technical environment and can be implemented using any suitable data storage technology, such as but not limited to read only memory (ROM), random access memory (RAM), optical storage devices and systems (digital multi-function optical discs) DVD or CD) etc.
- Computer-readable media may include non-transitory storage media.
- the data processor can be any type suitable for the local technical environment, such as but not limited to general-purpose computers, special-purpose computers, microprocessors, digital signal processors (DSP), application-specific integrated circuits (ASIC), programmable logic devices (FGPA) And processors based on multi-core processor architecture.
- DSP digital signal processors
- ASIC application-specific integrated circuits
- FGPA programmable logic devices
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Abstract
Description
Claims (28)
- 一种切换指示方法,包括:根据无线资源控制RRC的配置参数确定目标参数;向终端发送控制消息,所述控制消息包括所述目标参数,所述控制消息用于指示所述终端按照所述目标参数进行休眠状态和正常状态的切换。
- 根据权利要求1所述的方法,其中,所述配置参数包括第一套参数和第二套参数;所述第一套参数包括物理下行控制信道PDCCH的监控周期和偏移;所述第二套参数包括至少两个带宽部分BWP,其中,至少一个BWP对应于休眠状态。
- 根据权利要求2所述的方法,其中,所述根据无线资源控制RRC的配置参数确定目标参数,包括:根据以下信息中的至少一种在所述第一套参数和所述第二套参数中选择所述目标参数:频带信息、终端能力信息、服务节点或终端支持的新空口NR版本信息以及辅小区激活时延需求信息。
- 根据权利要求2所述的方法,其中,所述控制消息通过主小区或调度小区发送。
- 根据权利要求2所述的方法,其中,所述控制消息包括目标参数指示域;所述目标参数指示域的比特数量为m-1,m-1个比特分别对应于m-1个辅小区;或者,所述目标参数指示域的比特数量为m-1的2倍,每2个比特对应于一个辅小区;其中,m表示NR***支持的最大载波数量。
- 根据权利要求2-5任一项所述的方法,其中,所述控制消息包括下行控制信息DCI。
- 根据权利要求1所述的方法,其中,所述配置参数包括虚拟BWP的配置参数;所述虚拟BWP对应于一个正常状态的BWP,所述虚拟BWP与对应的正常状态的BWP之间的第一配置参数不同;所述虚拟BWP与对应的正常状态的BWP之间的第二配置参数相同。
- 根据权利要求7所述的方法,其中,所述第一配置参数包括以下至少之一:PDCCH的搜索空间、控制资源集CORESET配置参数、信道状态信息参考信号CSI-RS配置参数、非周期跟踪参考信号A-TRS配置参数、探测参考信号SRS配置参数、波束管理BM配置参数。
- 根据权利要求7所述的方法,其中,所述第二配置参数包括以下至少之一:带宽、子载波间隔SCS和中心频点。
- 根据权利要求7所述的方法,其中,所述虚拟BWP与对应的正常状态的BWP的BWP索引相同。
- 根据权利要求7所述的方法,其中,所述第一配置参数为BWP专有参数,所述第二配置参数为BWP共有参数。
- 根据权利要求7-11任一项所述的方法,其中,所述目标参数,包括:所述虚拟BWP的配置参数以及对应的正常状态的BWP的配置参数。
- 根据权利要求2所述的方法,在所述目标参数包括所述第二套参数的情况下,还包括:接收所述终端上报的设定能力的能力信息;根据所述设定能力的能力信息执行对所述至少两个BWP的配置参数限制操作,其中,所述至少两个BWP包括第一BWP和第二BWP。
- 根据权利要求13所述的方法,其中,所述配置参数限制操作包括以下至少之一:BWP配置参数限制操作、参考信号配置参数限制操作、天线端口配置参数限制操作、SRS天线切换配置参数限制操作和传输配置指示TCI状态配置参数限制操作。
- 根据权利要求13所述的方法,其中,所述至少两个BWP之间的切换方式为动态BWP切换。
- 根据权利要求14所述的方法,其中,所述BWP配置参数限制操作包括:限制所述第一BWP和所述第二BWP的频域位置重叠,其中,所述第一BWP的带宽小于所述第二BWP的带宽。
- 根据权利要求14所述的方法,其中,所述参考信号配置参数限制操作包括:限制所述第一BWP的参考信号的时频域位置为所述第二BWP参考信号的时频域位置的子集。
- 根据权利要求14所述的方法,其中,所述天线端口配置参数限制操作包括:限制所述第一BWP的天线端口数小于或等于所述第二BWP的天线端口数。
- 根据权利要求14所述的方法,其中,所述传输配置指示状态配置参数限制操作包括:共享所述第一BWP和所述第二BWP的传输配置指示状态。
- 根据权利要求14所述的方法,其中,所述SRS天线切换配置参数限制操作包括:限制所述第一BWP的SRS天线切换配置参数为所述第二BWP的SRS天线切换配置参数的子集。
- 根据权利要求13-20任一项所述的方法,其中,所述设定能力根据终端类型和频带信息中的至少之一确定。
- 一种切换方法,包括:接收控制消息,所述控制消息包括根据无线资源控制RRC的配置参数确定的目标参数;按照所述目标参数进行休眠状态和正常状态的切换。
- 根据权利要求22所述的方法,还包括:向服务节点上报设定能力的能力信息。
- 一种切换指示装置,包括:目标参数确定模块,设置为根据无线资源控制RRC的配置参数确定目标参数;指示模块,设置为向终端发送控制消息,所述控制消息包括所述目标参数,所述控制消息用于指示所述终端按照所述目标参数进行休眠状态和正常状态的切换。
- 一种切换装置,包括:接收模块,设置为接收控制消息,所述控制消息包括根据无线资源控制RRC的配置参数确定的目标参数;切换模块,设置为按照所述目标参数进行休眠状态和正常状态的切换。
- 一种服务节点,包括:至少一个处理器;存储装置,设置为存储至少一个程序;所述至少一个程序被所述至少一个处理器执行,使得所述至少一个处理器实现如权利要求1-21中任一项所述的切换指示方法。
- 一种终端,包括:至少一个处理器;存储装置,设置为存储至少一个程序;所述至少一个程序被所述至少一个处理器执行,使得所述至少一个处理器实现如权利要求22-23中任一项所述的切换方法。
- 一种计算机可读存储介质,所述计算机可读存储介质上存储有计算机程序,所述计算机程序被处理器执行时,实现如权利要求1-21中任一项所述的切换指示方法或如权利要求22-23中任一项所述的切换方法。
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