CN110445565B - Broadband switching method, user terminal and network side equipment - Google Patents
Broadband switching method, user terminal and network side equipment Download PDFInfo
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- CN110445565B CN110445565B CN201810422296.4A CN201810422296A CN110445565B CN 110445565 B CN110445565 B CN 110445565B CN 201810422296 A CN201810422296 A CN 201810422296A CN 110445565 B CN110445565 B CN 110445565B
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- H04B17/309—Measuring or estimating channel quality parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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Abstract
The invention provides a broadband switching method, a user terminal and network side equipment, and belongs to the technical field of wireless communication. The broadband switching method applied to the network side equipment comprises the following steps: configuring a measurement interval for the network-side device to perform channel measurement on an inactive bandwidth part BWP. The broadband switching method applied to the user terminal comprises the following steps: and receiving configuration information of a measurement interval sent by a network side device through a first high-level signaling, wherein the measurement interval is used for the user terminal to send an uplink Sounding Reference Signal (SRS) on an inactive BWP. Through the technical scheme of the invention, the BWP to be switched can be determined through channel quality measurement.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a broadband switching method, a user terminal, and a network device.
Background
Channel capacity is proportional to bandwidth and signal-to-noise ratio (SNR), and in order to satisfy data rates of Gbps class in 5G networks, a larger bandwidth is required. The higher the frequency, the larger the bandwidth and the higher the channel capacity, and the high-band continuous bandwidth becomes the necessary choice of 5G. In large bandwidth operation, a User Equipment (UE) can configure up to 4 bandwidth parts (BWPs), but in the R15 standard, data can only be transmitted in one BWP, i.e. at most one BWP is activated at a time.
As shown in the BWP operation flowchart of fig. 1, in the initial access phase of the UE, an initial BWP is configured by high-layer signaling for the initial access procedure, and then a first active BWP is indicated by the high-layer signaling, i.e. the UE switches from the initial BWP to the active BWP, and at the same time a timer is set by the high-layer signaling, and within the time range of the timer, the UE will transmit data or reference signals on the active BWP, and after the timer expires, the UE switches from the active BWP to the default BWP (if the UE does not configure the default BWP, the UE will switch to the initial BWP), and then if there is no higher-layer signaling to indicate, the UE may switch from the default BWP to the active BWP.
In the prior art, only related signaling and a flow of BWP handover are given, but a handover principle of BWP is not explicitly given, and an intuitive BWP handover principle is to perform dynamic or semi-static BWP handover according to a bandwidth requirement of a UE, and a base station or the UE only needs to perform BWP handover according to the BWP indicated by a high-level signaling.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a broadband switching method, a user terminal and a network side device, which can determine whether to perform BWP switching through channel quality measurement.
In one aspect, a broadband switching method is provided, which is applied to a network side device, and includes:
configuring a measurement interval for the network-side device to perform channel measurement on an inactive bandwidth part BWP.
Further, the method further comprises:
and sending configuration information of the measurement interval to a user terminal through a first high-level signaling, wherein the measurement interval is used for the user terminal to send an uplink Sounding Reference Signal (SRS) on an inactive BWP.
Further, the first higher layer signaling is BWP-measGapConfig.
Further, the configuration information of the measurement interval includes one or more of:
the measurement interval is 1 OFDM symbol, or 2 continuous OFDM symbols, or 4 continuous OFDM symbols;
the measurement interval corresponds to at least one inactive BWP;
the configuration information includes at least one measurement interval.
Further, the method further comprises:
configuring an uplink SRS, wherein the SRS is a periodic or aperiodic reference signal.
Further, the method further comprises:
and triggering the user terminal to send the aperiodic SRS at the non-activated BWP configured with the measurement interval through DCI signaling.
Further, the method further comprises:
and triggering the user terminal to send the SRS in the period of the non-activated BWP configured with the measurement interval through the third high-layer signaling.
Further, the third high-level signaling is measConfig, an inactive BWP measurement parameter is added to the third high-level signaling, and the measurement parameter includes bandwidth part identification BWP ID information, and the measurement parameter is used to indicate that channel measurement is performed on the inactive BWP.
The measurement mode of the measurement parameter is BWP-measureoInactive.
Further, the method further comprises:
receiving an SRS sent by the user terminal on an inactive BWP;
and measuring the channel quality according to the received SRS, returning to the original BWP to receive and transmit data after the measurement interval time is over, and determining the activated BWP to be switched according to the measurement result of the non-activated BWP.
Further, the method further comprises:
and indicating the user terminal to switch from the current BWP to the activated BWP to be switched through second high-layer signaling or downlink control information DCI signaling.
Further, the second higher layer signaling is a radio resource control RRC message.
The embodiment of the invention also provides a broadband switching method, which is applied to the user terminal and comprises the following steps:
and receiving configuration information of a measurement interval sent by a network side device through a first high-level signaling, wherein the measurement interval is used for the user terminal to send an uplink Sounding Reference Signal (SRS) on an inactive BWP.
Further, the first higher layer signaling is BWP-measGapConfig.
Further, the configuration information of the measurement interval includes one or more of:
the measurement interval is 1 OFDM symbol, or 2 continuous OFDM symbols, or 4 continuous OFDM symbols;
the measurement interval corresponds to at least one inactive BWP;
the configuration information includes at least one measurement interval.
Further, the method further comprises:
and receiving an uplink SRS configured by the network side equipment, wherein the SRS is a periodic or aperiodic reference signal.
Further, the method further comprises:
receiving DCI signaling of the network side device, wherein the DCI signaling triggers the user terminal to send the aperiodic SRS in the non-activated BWP configured with the measurement interval.
Further, the method further comprises:
and receiving the third high-layer signaling of the network side device, wherein the third high-layer signaling triggers the user equipment to send a periodic SRS in an inactive BWP configuration measurement interval.
Further, the third high-level signaling is measConfig, an inactive BWP measurement parameter is added to the third high-level signaling, and the measurement parameter includes bandwidth part identification BWP ID information, and the measurement parameter is used to indicate that channel measurement is performed on the inactive BWP.
The measurement mode of the measurement parameter is BWP-measureoInactive.
Further, the method further comprises:
and transmitting the SRS to the network side equipment on the inactive BWP within the measurement interval time.
Further, the method further comprises:
and receiving a second high-layer signaling or a Downlink Control Information (DCI) signaling of the network side equipment, wherein the second high-layer signaling or the DCI signaling indicates that the user terminal is switched from the current BWP to the activated BWP to be switched.
Further, the second higher layer signaling is a radio resource control RRC message.
The embodiment of the invention also provides a network side device, which comprises a processor and a transceiver,
the processor is configured to configure a measurement interval for the network-side device to perform channel measurement on an inactive bandwidth part, BWP.
Further, the transceiver is configured to send configuration information of the measurement interval to a user equipment through a first higher layer signaling, where the measurement interval is used for the user equipment to send an uplink sounding reference signal SRS on an inactive BWP.
Further, the first higher layer signaling is BWP-measGapConfig.
Further, the configuration information of the measurement interval includes one or more of:
the measurement interval is 1 OFDM symbol, or 2 continuous OFDM symbols, or 4 continuous OFDM symbols;
the measurement interval corresponds to at least one inactive BWP;
the configuration information includes at least one measurement interval.
Further, the processor is further configured to configure an uplink SRS, where the SRS is a periodic or aperiodic reference signal.
Further, the transceiver is further configured to trigger the user terminal to transmit an aperiodic SRS through DCI signaling in an inactive BWP configuring a measurement interval.
Further, the transceiver is further configured to trigger, through the third higher layer signaling, the user terminal to transmit a periodic SRS at an inactive BWP configuring a measurement interval.
Further, the third high-level signaling is measConfig, an inactive BWP measurement parameter is added to the third high-level signaling, and the measurement parameter includes bandwidth part identification BWP ID information, and the measurement parameter is used to indicate that channel measurement is performed on the inactive BWP.
The measurement mode of the measurement parameter is BWP-measureoInactive.
Further, the transceiver is further configured to receive an SRS transmitted by the user terminal on an inactive BWP;
the processor is further configured to perform channel quality measurement according to the received SRS, switch back to the original BWP data transmission and reception after the measurement interval is over, and determine the active BWP to be switched according to the measurement result of the inactive BWP.
Further, the transceiver is further configured to instruct, through second higher layer signaling or downlink control information DCI signaling, the user terminal to switch from the current BWP to the active BWP to be switched.
Further, the second higher layer signaling is a radio resource control RRC message.
The embodiment of the invention also provides a user terminal, which comprises a processor and a transceiver,
the transceiver is configured to receive configuration information of a measurement interval sent by a network side device through a first high-level signaling, where the measurement interval is used for the ue to send an uplink sounding reference signal SRS on an inactive BWP.
Further, the first higher layer signaling is BWP-measGapConfig.
Further, the configuration information of the measurement interval includes one or more of:
the measurement interval is 1 OFDM symbol, or 2 continuous OFDM symbols, or 4 continuous OFDM symbols;
the measurement interval corresponds to at least one inactive BWP;
the configuration information includes at least one measurement interval.
Further, the transceiver is further configured to receive an uplink SRS configured by the network side device, where the SRS is a periodic or aperiodic reference signal.
Further, the transceiver is further configured to receive DCI signaling of the network side device, where the DCI signaling triggers the user terminal to transmit an aperiodic SRS in an inactive BWP configuring a measurement interval.
Further, the transceiver is further configured to receive the third higher layer signaling of the network side device, where the third higher layer signaling triggers the user terminal to transmit a periodic SRS at an inactive BWP configured with a measurement interval.
Further, the third high-level signaling is measConfig, an inactive BWP measurement parameter is added to the third high-level signaling, and the measurement parameter includes bandwidth part identification BWP ID information, and the measurement parameter is used to indicate that channel measurement is performed on the inactive BWP.
The measurement mode of the measurement parameter is BWP-measureoInactive.
Further, the transceiver is further configured to transmit an SRS to the network-side device on an inactive BWP during the measurement interval.
Further, the transceiver is further configured to receive a second high layer signaling or a downlink control information DCI signaling of the network side device, where the second high layer signaling or the DCI signaling indicates that the user terminal is switched from the current BWP to the active BWP to be switched.
Further, the second higher layer signaling is a radio resource control RRC message.
The embodiment of the invention also provides network side equipment, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor; the processor, when executing the program, implements the broadband switching method as described above.
The embodiment of the invention also provides a user terminal, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor; the processor, when executing the program, implements the broadband switching method as described above.
Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the broadband switching method or implements the steps in the broadband switching method as described above.
The embodiment of the invention has the following beneficial effects:
in the above scheme, the network side device configures a measurement interval, and the user terminal can send the uplink SRS on the inactive BWP within the measurement interval time, so that the network side device can perform channel measurement on the inactive BWP according to the SRS, and thus make an instruction to switch to the active BWP to be switched according to the channel measurement result, and enable the user terminal to switch to the BWP with better channel quality.
Drawings
Fig. 1 is a schematic diagram illustrating a conventional BWP handover process;
fig. 2 is a schematic flowchart of a broadband switching method according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating a broadband switching method according to an embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating BWP handover according to an embodiment of the present invention;
FIG. 5 is a BWP handoff diagram according to an embodiment of the present invention;
FIG. 6 is a diagram illustrating a second BWP handoff in accordance with an embodiment of the present invention;
fig. 7 is a block diagram of a network device according to an embodiment of the present invention;
fig. 8 is a block diagram of a user terminal according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
Embodiments of the present invention provide a broadband handover method, a user equipment and a network side device, which can determine whether to perform BWP handover through channel quality measurement.
An embodiment of the present invention provides a broadband switching method, which is applied to a network side device, and as shown in fig. 2, includes:
step 101: configuring a measurement interval for the network-side device to perform channel measurement on inactive BWP.
In this embodiment, the network side device configures a measurement interval, so that the ue can send an uplink Sounding Reference Signal (SRS) on the inactive BWP within the measurement interval, so that the network side device can perform channel measurement on the inactive BWP according to the SRS, and thus make an instruction to switch to the active BWP to be switched according to the channel measurement result, and can switch to the BWP with better channel quality.
Further, the method further comprises:
and sending configuration information of the measurement interval to a user terminal through first high-layer signaling, wherein the measurement interval is used for the user terminal to send the SRS on the inactive BWP.
Further, the first higher layer signaling is BWP-measGapConfig.
Further, the configuration information of the measurement interval includes one or more of:
the measurement interval is 1 OFDM symbol, or 2 continuous OFDM symbols, or 4 continuous OFDM symbols;
the measurement interval corresponds to at least one inactive BWP;
the configuration information includes at least one measurement interval.
Further, the method further comprises:
configuring an uplink SRS, wherein the SRS is a periodic or aperiodic reference signal.
Further, the method further comprises:
and triggering the user terminal to send the aperiodic SRS at the non-activated BWP configured with the measurement interval through DCI signaling.
Further, the method further comprises:
and triggering the user terminal to send the SRS in the period of the non-activated BWP configured with the measurement interval through the third high-layer signaling.
Further, the third high-level signaling is measConfig, an inactive BWP measurement parameter is added to the third high-level signaling, and the measurement parameter includes bandwidth part identification BWP ID information, and the measurement parameter is used to indicate that channel measurement is performed on the inactive BWP. Specifically, the inactive BWP measurement parameter may be a BWP-measureinactive parameter, where the BWP-measureinactive parameter includes BWP-ID information; when the user terminal receives the high-level signaling measConfig and the BWP-measureinactive is contained in the high-level signaling measConfig, the user terminal sends corresponding periodic SRS resources in the inactive BWP.
The measurement mode of the measurement parameter is BWP-measureoInactive.
Further, the method further comprises:
receiving an SRS sent by the user terminal on an inactive BWP;
and measuring the channel quality according to the received SRS, returning to the original BWP to receive and transmit data after the measurement interval time is over, and determining the activated BWP to be switched according to the measurement result of the non-activated BWP.
In order to ensure the communication quality of the ue, the network side device may select a BWP with better channel quality as the active BWP to be switched according to the measurement result.
Further, the method further comprises:
and instructing the user terminal to switch from the current BWP to the activated BWP to be switched through second high-layer signaling or Downlink Control Information (DCI) signaling.
The second higher layer signaling may specifically be a Radio Resource Control (RRC) message.
An embodiment of the present invention further provides a broadband switching method, which is applied to a user terminal, and as shown in fig. 3, the method includes:
step 201: and receiving configuration information of a measurement interval sent by a network side device through a first high-level signaling, wherein the measurement interval is used for the user terminal to send an uplink Sounding Reference Signal (SRS) on an inactive BWP.
In this embodiment, the network side device configures a measurement interval, and the ue sends the uplink SRS on the inactive BWP within the measurement interval, so that the network side device can perform channel measurement on the inactive BWP according to the SRS, and make an instruction to switch to the active BWP to be switched according to the channel measurement result, so that the ue can switch to the BWP with better channel quality.
Further, the first higher layer signaling is BWP-measGapConfig.
Further, the configuration information of the measurement interval includes one or more of:
the measurement interval is 1 OFDM symbol, or 2 continuous OFDM symbols, or 4 continuous OFDM symbols;
the measurement interval corresponds to at least one inactive BWP;
the configuration information includes at least one measurement interval.
Further, the method further comprises:
and receiving an uplink SRS configured by the network side equipment, wherein the SRS is a periodic or aperiodic reference signal.
Further, the method further comprises:
receiving DCI signaling of the network side device, wherein the DCI signaling triggers the user terminal to send the aperiodic SRS in the non-activated BWP configured with the measurement interval.
Further, the method further comprises:
and receiving the third high-layer signaling of the network side device, wherein the third high-layer signaling triggers the user equipment to send a periodic SRS in an inactive BWP configuration measurement interval.
Further, the third high-level signaling is measConfig, an inactive BWP measurement parameter is added to the third high-level signaling, and the measurement parameter includes bandwidth part identification BWP ID information, and the measurement parameter is used to indicate that channel measurement is performed on the inactive BWP.
The measurement mode of the measurement parameter is BWP-measureoInactive.
Further, the method further comprises:
and transmitting the SRS to the network side equipment on the inactive BWP within the measurement interval time.
Further, the method further comprises:
and receiving a second high-layer signaling or a Downlink Control Information (DCI) signaling of the network side equipment, wherein the second high-layer signaling or the DCI signaling indicates that the user terminal is switched from the current BWP to the activated BWP to be switched.
Further, the second higher layer signaling is an RRC message.
The BWP handover principle of this embodiment is to define a special measurement interval, in which the UE and the network side device, such as the base station, respectively complete the SRS transmission and reception, and the base station performs the information quality measurement according to the received SRS and makes an instruction to which BWP to handover according to the measurement result. Meanwhile, in this case, the UE may transmit the SRS not only on the active BWP but also on the inactive BWP.
In addition, in the R15 standardized specification, the UE may configure one or more uplink sounding reference signal resource sets (SRS resource sets), one SRS resource set may be configured with 1 or more SRS resources, and a time domain periodicity characteristic of the SRS resources may be configured as periodicity, aperiodic or semi-persistent. In large bandwidth operation, the SRS configuration may be per BWP.
As can be seen from fig. 1, after the timer configured in the higher layer expires, the UE switches from the active BWP to the default/initial BWP, where the default/initial BWP is pre-configured in advance, so that the measurement gap problem does not need to be considered in this process (as numbered 2 in fig. 1), and only needs to be considered in the process (as numbered 1 and 3 in fig. 1) of switching from the initial or default/initial BWP to the active BWP.
In this embodiment, a special time period is defined for the ue to transmit SRS on the inactive BWP to complete the inactive BWP measurement, and the network device estimates the channel quality through the received SRS to indicate whether to perform BWP handover. Taking a network side device as an example of a base station, the technical solution of this embodiment specifically includes the following steps:
1. the base station configures a measurement interval for the UE through a high-layer signaling BWP-measGapConfig, wherein the measurement interval is mainly used for performing inactive BWP measurement, the UE can be switched to the inactive BWP to send SRS in the measurement interval time, the original BWP is returned to continue normal transceiving work after the measurement interval time is ended, and the configuration of the measurement interval can adopt one or more of (1) to (3):
(1) each measurement interval has a size of 1 Orthogonal Frequency Division Multiplexing (OFDM) symbol, or 2 consecutive OFDM symbols, or 4 consecutive OFDM symbols;
(2) each measurement interval corresponds to an identification of at least one inactive BWP;
(3) each higher layer signaling may configure at least one measurement interval;
wherein the measurement interval is configured before instructing BWP to switch to active BWP, i.e. before the BWP switching time interval as in fig. 1.
Preferably, the measurement interval is configured before instructing BWP to switch to active BWP, i.e. before the BWP switching time interval as in fig. 1.
2. The base station configures aperiodic/periodic SRS resource setting (resource set) for the UE, wherein the SRS resource set is configured by each (per) BWP;
if the SRS resource sets are aperiodic, the base station triggers the UE to transmit the aperiodic SRS resource sets in the non-activated BWP through DCI, wherein the DCI contains BWP-ID information; if the SRS resource set is periodic, adding a measurement mode of BWP-MeasureoInactive parameter in a high-level signaling measConfig for indicating that channel measurement is carried out on an inactive BWP, wherein the BWP-MeasureoInactive comprises BWP-ID information; when a user receives the high-level signaling measConfig and BWP-measureinactive is contained in the high-level signaling measConfig, the UE sends corresponding periodic SRS resource sets in the inactive BWP.
3. When the UE receives the measurement interval contained in the high-layer signaling BWP-measGapConfig, the UE sends SRS on the inactive BWP in the measurement interval time;
4. the base station receives the SRS sent by the UE for channel quality measurement, determines the BWP to be activated according to the measurement result of each BWP, and then indicates the UE to activate which BWP through RRC or DCI, as shown in fig. 4, indicates the UE to activate BWP 2;
5. the UE switches from the initial BWP to the BWP to be activated, as shown in fig. 4, the UE activates BWP 2.
The technical scheme of the invention is further described by combining the drawings and specific embodiments:
the first embodiment is as follows:
as shown in fig. 5, 4 BWPs (BWP1, BWP2, BWP3, initial BWP) configured for a UE exist overlapping each other, and the existence of one BWP3 can completely cover the other BWPs.
The method includes that a base station configures 1 measurement interval through high-layer signaling BWP-measGapConfig, in the measurement interval, the base station configures UE to send an aperiodic SRS on BWP3, the base station estimates the channel quality of the whole BWP3 according to the received SRS, a segment with good channel quality in BWP3 can be obtained, and then an activatable BWP is selected according to the required size of a UE frequency band and the position of a center frequency point of each BWP, in the embodiment, the frequency band with good channel quality is the frequency band covered by BWP1, so the base station activates BWP1 through RRC signaling or DCI indication, and the UE is switched to BWP1 with good channel quality from initial BWP.
Example two:
as shown in fig. 6, there are 4 BWPs (BWP1, BWP2, BWP3, initial BWP) configured for the UE overlapping each other, but there is no case where one BWP can completely cover the other BWPs.
The base station configures 3 measurement intervals through higher layer signaling BWP-measgapcfonfig, and configures SRS resource for different BWPs in the three measurement interval times, for example, configures the UE to perform aperiodic SRS transmission on BWP1, BWP2 and BWP 3. The base station estimates the channel quality of each BWP through the received SRS, and instructs the UE to switch to the BWP2 with better channel quality through the DCI.
Example three:
when SRS resource used for channel quality measurement of the inactive BWP is an aperiodic reference signal, a base station configures a measurement interval through high-layer signaling BWP-measGapConfig, triggers UE to send the preconfigured aperiodic SRS reference signal on the inactive BWP corresponding to the measurement interval through DCI, then the base station estimates the channel quality of the BWP according to the received SRS, and instructs the UE to switch to the active BWP with better channel quality according to the channel quality.
Example four:
when SRS resource used for inactive BWP channel quality measurement is a periodic reference signal, a base station configures a measurement interval through high-layer signaling BWP-measGapConfig, when the UE detects that the high-layer signaling measConfig contains BWP-measureinactive, the UE sends the preconfigured periodic SRS reference signal on the inactive BWP corresponding to the measurement interval, then the base station estimates the channel quality of the BWP according to the received SRS, and instructs the UE to switch to the BWP with better channel quality according to the channel quality.
For large bandwidth operation, the embodiment defines a measurement interval for the UE to transmit SRS on the inactive BWP, that is, the base station configures the measurement interval through higher layer signaling BWP-measGapConfig, the UE transmits SRS in the measurement interval, the base station estimates the channel quality of each BWP through the received SRS, and makes a DCI instruction to specifically activate which BWP, so that the UE can switch to the BWP with better channel quality.
An embodiment of the present invention further provides a network-side device, as shown in fig. 7, including a processor 31 and a transceiver 32,
the processor 31 is configured to configure a measurement interval for the network-side device to perform channel measurement on the inactive bandwidth part BWP.
In this embodiment, the network-side device configures a measurement interval, so that the ue can send an uplink SRS on the inactive BWP within the measurement interval, so that the network-side device can perform channel measurement on the inactive BWP according to the SRS, and make an instruction to switch to the active BWP to be switched according to the channel measurement result, thereby enabling the ue to switch to the BWP with better channel quality.
Further, the transceiver 32 is configured to send configuration information of the measurement interval to a user equipment through a first higher layer signaling, where the measurement interval is used for the user equipment to send an uplink sounding reference signal SRS on an inactive BWP.
Further, the first higher layer signaling is BWP-measGapConfig.
Further, the configuration information of the measurement interval includes one or more of:
the measurement interval is 1 OFDM symbol, or 2 continuous OFDM symbols, or 4 continuous OFDM symbols;
the measurement interval corresponds to at least one inactive BWP;
the configuration information includes at least one measurement interval.
Further, the processor 31 is further configured to configure an uplink SRS, where the SRS is a periodic or aperiodic reference signal.
Further, the transceiver 32 is further configured to trigger the user terminal to transmit the aperiodic SRS through DCI signaling in an inactive BWP configuring a measurement interval.
Further, the transceiver 32 is further configured to trigger the user terminal to transmit a periodic SRS at an inactive BWP configuring a measurement interval through the third higher layer signaling.
Further, the third high-level signaling is measConfig, an inactive BWP measurement parameter is added to the third high-level signaling, and the measurement parameter includes bandwidth part identification BWP ID information, and the measurement parameter is used to indicate that channel measurement is performed on the inactive BWP.
The measurement mode of the measurement parameter is BWP-measureoInactive.
Further, the transceiver 32 is further configured to receive an SRS transmitted by the user terminal on an inactive BWP;
the processor 31 is further configured to perform channel quality measurement according to the received SRS, switch back to the original BWP data receiving and sending after the measurement interval is over, and determine the active BWP to be switched according to the measurement result of the inactive BWP.
Further, the transceiver 32 is further configured to instruct the user terminal to switch from the current BWP to the active BWP to be switched through second higher layer signaling or downlink control information DCI signaling.
Further, the second higher layer signaling is an RRC message.
An embodiment of the present invention further provides a user terminal, as shown in fig. 8, including a processor 41 and a transceiver 42,
the transceiver 42 is configured to receive configuration information of a measurement interval sent by a network side device through a first higher layer signaling, where the measurement interval is used for the ue to send an uplink sounding reference signal SRS on an inactive BWP.
In this embodiment, the network side device configures a measurement interval, and the ue sends the uplink SRS on the inactive BWP within the measurement interval, so that the network side device can perform channel measurement on the inactive BWP according to the SRS, and make an instruction to switch to the active BWP to be switched according to the channel measurement result, so that the ue can switch to the BWP with better channel quality.
Further, the first higher layer signaling is BWP-measGapConfig.
Further, the configuration information of the measurement interval includes one or more of:
the measurement interval is 1 OFDM symbol, or 2 continuous OFDM symbols, or 4 continuous OFDM symbols;
the measurement interval corresponds to at least one inactive BWP;
the configuration information includes at least one measurement interval.
Further, the transceiver 42 is further configured to receive an uplink SRS configured by the network side device, where the SRS is a periodic or aperiodic reference signal.
Further, the transceiver 42 is further configured to receive DCI signaling of the network side device, where the DCI signaling triggers the user terminal to transmit an aperiodic SRS in an inactive BWP configuring a measurement interval.
Further, the transceiver 42 is further configured to receive the third higher layer signaling of the network side device, where the third higher layer signaling triggers the ue to transmit a periodic SRS at an inactive BWP configured with a measurement interval.
Further, the third high-level signaling is measConfig, an inactive BWP measurement parameter is added to the third high-level signaling, and the measurement parameter includes bandwidth part identification BWP ID information, and the measurement parameter is used to indicate that channel measurement is performed on the inactive BWP.
The measurement mode of the measurement parameter is BWP-measureoInactive.
Further, the transceiver 42 is further configured to transmit an SRS to the network-side device on an inactive BWP during the measurement interval.
Further, the transceiver 42 is further configured to receive a second higher layer signaling or a downlink control information DCI signaling of the network-side device, where the second higher layer signaling or the DCI signaling indicates that the user terminal is switched from the current BWP to the active BWP to be switched.
Further, the second higher layer signaling is an RRC message.
The embodiment of the invention also provides network side equipment, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor; the processor, when executing the program, implements the broadband switching method as described above.
The embodiment of the invention also provides a user terminal, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor; the processor, when executing the program, implements the broadband switching method as described above.
Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the broadband switching method or implements the steps in the broadband switching method as described above.
It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the Processing units may be implemented within one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units configured to perform the functions described herein, or a combination thereof.
For a software implementation, the techniques described herein may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.
Claims (49)
1. A broadband switching method is applied to network side equipment and comprises the following steps:
configuring a measurement interval, wherein the measurement interval is used for channel measurement of the network side equipment on an inactive bandwidth part BWP, and a base station configures the measurement interval for UE through high-layer signaling BWP-measGapConfig; a base station configures aperiodic/periodic SRS resource setting for UE, wherein SRS resource set is configured for each BWP; when the UE receives the measurement interval contained in the high-layer signaling BWP-measGapConfig, the UE sends SRS on the inactive BWP in the measurement interval time; the base station receives the SRS sent by the UE to measure the channel quality, determines the BWP to be activated according to the measurement result of each BWP, and then indicates the BWP to be activated by the UE through RRC signaling or DCI.
2. The broadband switching method according to claim 1, wherein the method further comprises:
and sending configuration information of the measurement interval to a user terminal through a first high-level signaling, wherein the measurement interval is used for the user terminal to send an uplink Sounding Reference Signal (SRS) on an inactive BWP.
3. A broadband switching method according to claim 2, wherein the first higher layer signaling is BWP-measGapConfig.
4. A method for broadband handover according to claim 1 or 2, wherein the configuration information of the measurement interval comprises one or more of:
the measurement interval is 1 OFDM symbol, or 2 continuous OFDM symbols, or 4 continuous OFDM symbols;
the measurement interval corresponds to at least one inactive BWP;
the configuration information includes at least one measurement interval.
5. A method for broadband switching according to claim 1 or 2, the method further comprising:
configuring an uplink SRS, wherein the SRS is a periodic or aperiodic reference signal.
6. The broadband switching method according to claim 5, wherein the method further comprises:
and triggering the user terminal to send the aperiodic SRS at the non-activated BWP configured with the measurement interval through the DCI signaling.
7. The broadband switching method according to claim 5, wherein the method further comprises:
and triggering the user terminal to send the periodic SRS at the non-activated BWP configured with the measurement interval through third higher layer signaling.
8. The broadband switching method according to claim 7, wherein:
the third high-level signaling is measConfig, an inactive BWP measurement parameter is added to the third high-level signaling, the measurement parameter includes bandwidth part identification BWP ID information, and the measurement parameter is used for indicating channel measurement in the inactive BWP.
9. The method according to claim 8, wherein the measurement mode of the measurement parameter is BWP-measureoinactive.
10. The broadband switching method according to claim 5, wherein the method further comprises:
receiving an SRS sent by a user terminal on an inactive BWP;
and measuring the channel quality according to the received SRS, returning to the original BWP to receive and transmit data after the measurement interval time is over, and determining the activated BWP to be switched according to the measurement result of the non-activated BWP.
11. The broadband switching method according to claim 10, further comprising:
and indicating the user terminal to switch from the current BWP to the activated BWP to be switched through second high-layer signaling or downlink control information DCI signaling.
12. A method for broadband handover according to claim 11, wherein the second higher layer signaling is a radio resource control, RRC, message.
13. A broadband switching method is applied to a user terminal and comprises the following steps:
receiving configuration information of a measurement interval sent by a network side device through a first high-level signaling, wherein the measurement interval is used for sending an uplink Sounding Reference Signal (SRS) by a user terminal on an inactive bandwidth part (BWP), and a base station configures the measurement interval for UE through the high-level signaling BWP-measGapConfig; a base station configures aperiodic/periodic SRS resource setting for UE, wherein SRS resource set is configured for each BWP; when the UE receives the measurement interval contained in the high-layer signaling BWP-measGapConfig, the UE sends SRS on the inactive BWP in the measurement interval time; the base station receives the SRS sent by the UE to measure the channel quality, determines the BWP to be activated according to the measurement result of each BWP, and then indicates the BWP to be activated by the UE through RRC signaling or DCI.
14. A broadband switching method according to claim 13, wherein the first higher layer signaling is BWP-measGapConfig.
15. A method for broadband handover according to claim 13, wherein the configuration information of the measurement interval comprises one or more of:
the measurement interval is 1 OFDM symbol, or 2 continuous OFDM symbols, or 4 continuous OFDM symbols;
the measurement interval corresponds to at least one inactive BWP;
the configuration information includes at least one measurement interval.
16. The broadband switching method according to claim 13, wherein the method further comprises:
and receiving an uplink SRS configured by the network side equipment, wherein the SRS is a periodic or aperiodic reference signal.
17. The broadband switching method according to claim 16, wherein the method further comprises:
receiving DCI signaling of the network side device, wherein the DCI signaling triggers the user terminal to send the aperiodic SRS in the non-activated BWP configured with the measurement interval.
18. The broadband switching method according to claim 16, wherein the method further comprises:
and receiving a third high-layer signaling of the network side equipment, wherein the third high-layer signaling triggers the user terminal to send a periodic SRS in an inactive BWP configuration measurement interval.
19. The method of claim 18, wherein the third higher layer signaling is measConfig, and an inactive BWP measurement parameter is added to the third higher layer signaling, and the measurement parameter includes bandwidth part identification BWP ID information, and the measurement parameter is used to indicate channel measurement performed in the inactive BWP.
20. The method according to claim 19, wherein the measurement mode of the measurement parameter is BWP-measureoinactive.
21. The broadband switching method according to claim 16, wherein the method further comprises:
and transmitting the SRS to the network side equipment on the inactive BWP within the measurement interval time.
22. The broadband switching method according to claim 21, wherein the method further comprises:
and receiving a second high-layer signaling or a Downlink Control Information (DCI) signaling of the network side equipment, wherein the second high-layer signaling or the DCI signaling indicates that the user terminal is switched from the current BWP to the activated BWP to be switched.
23. A method for broadband handover according to claim 22, wherein the second higher layer signaling is a radio resource control, RRC, message.
24. A network side device, comprising a processor and a transceiver,
the processor is configured to configure a measurement interval, where the measurement interval is used for the network-side device to perform channel measurement on an inactive bandwidth part BWP, and a base station configures the measurement interval for a UE through a higher layer signaling BWP-measgapconfiguration; a base station configures aperiodic/periodic SRS resource setting for UE, wherein SRS resource set is configured for each BWP; when the UE receives the measurement interval contained in the high-layer signaling BWP-measGapConfig, the UE sends SRS on the inactive BWP in the measurement interval time; the base station receives the SRS sent by the UE to measure the channel quality, determines the BWP to be activated according to the measurement result of each BWP, and then indicates the BWP to be activated by the UE through RRC signaling or DCI.
25. The network-side device of claim 24,
the transceiver is configured to send configuration information of the measurement interval to a user equipment through a first high-level signaling, where the measurement interval is used for the user equipment to send an uplink sounding reference signal SRS on an inactive BWP.
26. The network-side device of claim 25, wherein the first higher layer signaling is BWP-measGapConfig.
27. The network-side device of claim 24 or 25, wherein the configuration information of the measurement interval comprises one or more of the following:
the measurement interval is 1 OFDM symbol, or 2 continuous OFDM symbols, or 4 continuous OFDM symbols;
the measurement interval corresponds to at least one inactive BWP;
the configuration information includes at least one measurement interval.
28. The network-side device of claim 24 or claim 25,
the processor is further configured to configure an uplink SRS, which is a periodic or aperiodic reference signal.
29. The network-side device of claim 28,
the transceiver is further configured to trigger the user terminal to transmit the aperiodic SRS at the inactive BWP configuring the measurement interval through DCI signaling.
30. The network-side device of claim 28,
the transceiver is further configured to trigger the user terminal to transmit the periodic SRS at the inactive BWP configured measurement interval through third higher layer signaling.
31. The network-side device of claim 30, wherein:
the third high-level signaling is measConfig, an inactive BWP measurement parameter is added to the third high-level signaling, the measurement parameter includes bandwidth part identification BWP ID information, and the measurement parameter is used for indicating channel measurement in the inactive BWP.
32. The network-side device of claim 31, wherein the measurement mode of the measurement parameter is BWP-measureinactive.
33. The network-side device of claim 28,
the transceiver is further configured to receive an SRS transmitted by a user terminal on an inactive BWP;
the processor is further configured to perform channel quality measurement according to the received SRS, switch back to the original BWP data transmission and reception after the measurement interval is over, and determine the active BWP to be switched according to the measurement result of the inactive BWP.
34. The network-side device of claim 33,
the transceiver is further configured to instruct, through a second higher layer signaling or a downlink control information DCI signaling, the user terminal to switch from the current BWP to the active BWP to be switched.
35. The network-side device of claim 34, wherein the second higher layer signaling is a Radio Resource Control (RRC) message.
36. A user terminal, comprising a processor and a transceiver,
the transceiver is configured to receive configuration information of a measurement interval sent by a network side device through a first high-layer signaling, where the measurement interval is used for the UE to send an uplink sounding reference signal SRS on an inactive bandwidth part BWP, and a base station configures the measurement interval for the UE through a high-layer signaling BWP-measGapConfig; a base station configures aperiodic/periodic SRS resource setting for UE, wherein SRS resource set is configured for each BWP; when the UE receives the measurement interval contained in the high-layer signaling BWP-measGapConfig, the UE sends SRS on the inactive BWP in the measurement interval time; the base station receives the SRS sent by the UE to measure the channel quality, determines the BWP to be activated according to the measurement result of each BWP, and then indicates the BWP to be activated by the UE through RRC signaling or DCI.
37. The user terminal of claim 36, wherein the first higher layer signaling is BWP-measGapConfig.
38. The ue of claim 36, wherein the configuration information of the measurement interval comprises one or more of:
the measurement interval is 1 OFDM symbol, or 2 continuous OFDM symbols, or 4 continuous OFDM symbols;
the measurement interval corresponds to at least one inactive BWP;
the configuration information includes at least one measurement interval.
39. The user terminal of claim 36,
the transceiver is further configured to receive an uplink SRS configured by the network side device, where the SRS is a periodic or aperiodic reference signal.
40. The user terminal of claim 39,
the transceiver is further configured to receive a DCI signaling of the network-side device, where the DCI signaling triggers the user terminal to transmit an aperiodic SRS at an inactive BWP configuring a measurement interval.
41. The user terminal of claim 39,
the transceiver is further configured to receive a third higher layer signaling of the network side device, where the third higher layer signaling triggers the ue to send a periodic SRS at an inactive BWP configured with a measurement interval.
42. The UE of claim 41, wherein the third-higher-layer signaling is measConfig, and an inactive BWP measurement parameter is added to the third-higher-layer signaling, and the measurement parameter includes bandwidth part identification (BWP ID) information, and the measurement parameter is used to indicate channel measurement in inactive BWP.
43. The UE of claim 42, wherein the measurement mode of the measurement parameter is BWP-MeasuretoiInactive.
44. The user terminal of claim 39,
the transceiver is further configured to transmit an SRS to the network-side device on an inactive BWP within the measurement interval.
45. The user terminal of claim 44,
the transceiver is further configured to receive a second high-layer signaling or a downlink control information DCI signaling of the network-side device, where the second high-layer signaling or the DCI signaling indicates that the user equipment switches from the current BWP to the active BWP to be switched.
46. The UE of claim 45, wherein the second higher layer signaling is a Radio Resource Control (RRC) message.
47. A network-side device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor; characterized in that the processor, when executing the program, implements a broadband switching method according to any one of claims 1-12.
48. A user terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor; characterized in that the processor, when executing the program, implements a broadband switching method according to any one of claims 13-23.
49. A computer readable storage medium, having stored thereon a computer program, characterized in that the program, when being executed by a processor, is adapted to carry out the steps of the broadband switching method according to any one of claims 1-12 or to carry out the steps of the broadband switching method according to any one of claims 13-23.
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| WO2021093963A1 (en) * | 2019-11-15 | 2021-05-20 | Huawei Technologies Co., Ltd. | Devices and methods for using a bwp switching pattern |
| CN112822713B (en) * | 2019-11-18 | 2022-07-08 | 维沃移动通信有限公司 | SRS reporting processing method and related equipment |
| CN110958179B (en) * | 2019-11-27 | 2021-10-15 | 中国联合网络通信集团有限公司 | Method, device and system for switching terminal part bandwidth |
| JP2023526092A (en) * | 2020-05-21 | 2023-06-20 | ノキア テクノロジーズ オサケユイチア | Channel information report for idle bandwidth portion |
| CN113840347A (en) * | 2020-06-24 | 2021-12-24 | 捷开通讯(深圳)有限公司 | Partial bandwidth switching method and device |
| CN113890695B (en) * | 2020-07-01 | 2023-09-15 | 维沃移动通信有限公司 | Transmission processing method, device and terminal |
| WO2022021131A1 (en) * | 2020-07-29 | 2022-02-03 | Oppo广东移动通信有限公司 | Initial bandwidth part (bwp) reselection method, terminal device, and network device |
| CN112996111B (en) * | 2021-02-02 | 2023-04-18 | 展讯通信（上海）有限公司 | BWP switching method and device |
| CN118511568A (en) * | 2022-04-18 | 2024-08-16 | Oppo广东移动通信有限公司 | Communication method, terminal device and network device |
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