CN113691928B - Information processing method and device and terminal - Google Patents

Information processing method and device and terminal Download PDF

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Publication number
CN113691928B
CN113691928B CN202010408881.6A CN202010408881A CN113691928B CN 113691928 B CN113691928 B CN 113691928B CN 202010408881 A CN202010408881 A CN 202010408881A CN 113691928 B CN113691928 B CN 113691928B
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signal
reference signal
terminal
path loss
information
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CN113691928A (en
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任晓涛
任斌
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Datang Mobile Communications Equipment Co Ltd
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Datang Mobile Communications Equipment Co Ltd
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Priority to CN202211125145.5A priority Critical patent/CN115348605A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H04W64/006—Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination

Abstract

The invention provides an information processing method, an information processing device and a terminal, wherein the information processing method comprises the following steps: performing a first operation using the provided or configured second signal when the first signal is not provided or not configured; the first signal comprises at least one of a first reference signal and a second reference signal; the second signal comprises at least one of a first reference signal, a second reference signal and a third reference signal, and the first signal is different from the second signal; the first operation includes at least one of calculating a path loss and setting a spatial relationship; the first reference signal refers to a reference signal used as a path loss reference; the second reference signal refers to a reference signal used as spatial relationship information; the third reference signal refers to an SSB of a serving cell for acquiring MIB information. The method and the device solve the problem that the base station cannot accurately measure and the positioning precision is influenced under the condition that the path loss reference signal or the spatial relationship information reference signal cannot be obtained.

Description

Information processing method and device and terminal
Technical Field
The present invention relates to the field of terminal technologies, and in particular, to an information processing method, an information processing apparatus, and a terminal.
Background
The technical scheme of uplink positioning mainly comprises a UL-TDOA (uplink time difference of arrival) positioning method based on time delay, a UL-AOA (uplink angle of arrival) positioning method based on angle and other schemes. For the UL-TDOA time delay positioning method, the position of the terminal is estimated by the relative time difference (UL-RTOA, uplink relative arrival time) between the SRS-Pos (sounding reference signal for positioning) arrival time and the base station's own reference time according to the propagation distance of the terminal relative to each base station. For the UL-AOA angle positioning method, the position of the terminal is determined by a plurality of angle parameters according to the position direction of the terminal relative to the base station.
Specifically, in the prior art, no matter the UL-TDOA positioning method based on time delay or the UL-AoA positioning method based on angle, the base station needs to receive the uplink reference signal for positioning sent by the terminal and perform accurate measurement, so as to calculate the accurate position of the terminal. The precondition that the base station can accurately measure the uplink reference signal for positioning is that the terminal needs to transmit the uplink reference signal for positioning to the base station with proper transmission power and correct transmission beam direction. To achieve this, the terminal needs to be provided or configured with a path loss reference signal or a spatial relationship information reference signal in order to set an appropriate transmission power or a correct transmission beam direction.
However, in the prior art, the path loss reference signal or the spatial relationship information reference signal is optional, that is, the terminal may not obtain the reference signals, so that the terminal may not set a proper transmission power or a correct transmission beam direction, and further the base station may not perform accurate measurement, which affects the positioning accuracy.
As can be seen from the above, in the prior art, under the condition that the path loss reference signal or the spatial relationship information reference signal cannot be obtained, the base station cannot accurately perform measurement, which affects the positioning accuracy.
Disclosure of Invention
The invention aims to provide an information processing method, an information processing device and an information processing terminal, and aims to solve the problem that in the prior art, under the condition that a path loss reference signal or a spatial relationship information reference signal cannot be obtained, a base station cannot accurately measure and positioning accuracy is influenced.
In order to solve the above technical problem, an embodiment of the present invention provides an information processing method, applied to a terminal, including:
performing a first operation using the provided or configured second signal when the first signal is not provided or not configured;
wherein the first signal comprises at least one of a first reference signal and a second reference signal;
the second signal comprises at least one of a first reference signal, a second reference signal and a third reference signal, and the first signal is different from the second signal;
the first operation comprises at least one of calculating a path loss and setting a spatial relationship;
the first reference signal is used as a reference signal of a path loss reference; the second reference signal refers to a reference signal used as spatial relationship information; the third reference signal refers to a synchronization signal block SSB of a serving cell for acquiring information of a master information block MIB.
Optionally, in a case that the first signal is the first reference signal and the second signal is the second reference signal, the first operation is to calculate a path loss.
Optionally, when the first signal is the first reference signal and the second signal is the second reference signal, the configuration information of the second reference signal, which is notified to the terminal, includes the transmission power information of the second reference signal.
Optionally, in a case that the first signal is the first reference signal and the second signal is the second reference signal, the performing a first operation with the provided or configured second signal includes:
and under the condition that the number of the second signals is at least two, calculating the path loss by adopting the second signal with the maximum Reference Signal Received Power (RSRP).
Optionally, when the first signal is the first reference signal, the second signal is the second reference signal, and the second signal is a sounding reference signal SRS sent by the terminal to a serving cell, the second signal is not used to calculate a path loss.
Optionally, when the first signal is the second reference signal and the second signal is the first reference signal, the first operation refers to setting a spatial relationship.
Optionally, in a case that the first signal is the second reference signal and the second signal is the first reference signal, the performing a first operation with the provided or configured second signal includes:
and under the condition that the number of the second signals is at least two, adopting the second signal with the maximum Reference Signal Received Power (RSRP) value to set the spatial relation.
Optionally, in a case that the second signal is the third reference signal, the performing a first operation with the provided or configured second signal includes:
performing a first operation using the reference resources obtained in the SSB.
The embodiment of the invention also provides a terminal, which comprises a memory, a processor, a transceiver and a program which is stored on the memory and can run on the processor; the processor implements the following steps when executing the program:
performing a first operation using the provided or configured second signal when the first signal is not provided or not configured;
wherein the first signal comprises at least one of a first reference signal and a second reference signal;
the second signal comprises at least one of a first reference signal, a second reference signal and a third reference signal, and the first signal is different from the second signal;
the first operation comprises at least one of calculating a path loss and setting a spatial relationship;
the first reference signal is used as a reference signal of path loss reference; the second reference signal refers to a reference signal used as spatial relationship information; the third reference signal refers to a synchronization signal block SSB of a serving cell for acquiring information of a master information block MIB.
Optionally, in a case that the first signal is the first reference signal and the second signal is the second reference signal, the first operation is to calculate a path loss.
Optionally, when the first signal is the first reference signal and the second signal is the second reference signal, the configuration information of the second reference signal, which is notified to the terminal, includes the transmission power information of the second reference signal.
Optionally, when the first signal is the first reference signal and the second signal is the second reference signal, the processor is specifically configured to:
and under the condition that the number of the second signals is at least two, calculating the path loss by adopting the second signal with the maximum Reference Signal Received Power (RSRP).
Optionally, when the first signal is the first reference signal, the second signal is the second reference signal, and the second signal is a sounding reference signal SRS sent by the terminal to a serving cell, the second signal is not used to calculate a path loss.
Optionally, when the first signal is the second reference signal and the second signal is the first reference signal, the first operation refers to setting a spatial relationship.
Optionally, when the first signal is the second reference signal and the second signal is the first reference signal, the processor is specifically configured to:
and under the condition that the number of the second signals is at least two, adopting the second signal with the maximum Reference Signal Received Power (RSRP) value to set the spatial relation.
Optionally, when the second signal is the third reference signal, the processor is specifically configured to:
performing a first operation using the reference resources obtained in the SSB.
An embodiment of the present invention further provides a readable storage medium, on which a program is stored, and the program, when executed by a processor, implements the steps of the information processing method described above.
An embodiment of the present invention further provides an information processing apparatus, which is applied to a terminal, and includes:
a first processing module for performing a first operation using a provided or configured second signal when the first signal is not provided or configured;
wherein the first signal comprises at least one of a first reference signal and a second reference signal;
the second signal comprises at least one of a first reference signal, a second reference signal and a third reference signal, and the first signal is different from the second signal;
the first operation comprises at least one of calculating a path loss and setting a spatial relationship;
the first reference signal is used as a reference signal of a path loss reference; the second reference signal refers to a reference signal used as spatial relationship information; the third reference signal refers to a synchronization signal block SSB of a serving cell for acquiring information of a master information block MIB.
Optionally, in a case that the first signal is the first reference signal and the second signal is the second reference signal, the first operation is to calculate a path loss.
Optionally, when the first signal is the first reference signal and the second signal is the second reference signal, the configuration information of the second reference signal notified to the terminal includes the transmission power information of the second reference signal.
Optionally, when the first signal is the first reference signal and the second signal is the second reference signal, the first processing module includes:
a first processing sub-module, configured to calculate a path loss using the second signal with the largest reference signal received power RSRP value if the number of the second signals is at least two.
Optionally, when the first signal is the first reference signal, the second signal is the second reference signal, and the second signal is a sounding reference signal SRS sent by the terminal to a serving cell, the second signal is not used to calculate a path loss.
Optionally, when the first signal is the second reference signal and the second signal is the first reference signal, the first operation refers to setting a spatial relationship.
Optionally, when the first signal is the second reference signal and the second signal is the first reference signal, the first processing module includes:
and the second processing submodule is used for setting the spatial relationship by adopting the second signal with the maximum Reference Signal Received Power (RSRP) value under the condition that the number of the second signals is at least two.
Optionally, in a case that the second signal is the third reference signal, the first processing module includes:
a third processing sub-module, configured to perform the first operation using the reference resource obtained in the SSB.
The technical scheme of the invention has the following beneficial effects:
in the above-described aspect, the information processing method performs the first operation by using the supplied or configured second signal when the first signal is not supplied or configured; wherein the first signal comprises at least one of a first reference signal and a second reference signal; the second signal comprises at least one of a first reference signal, a second reference signal and a third reference signal, and the first signal is different from the second signal; the first operation comprises at least one of calculating a path loss and setting a spatial relationship; the first reference signal is used as a reference signal of a path loss reference; the second reference signal refers to a reference signal used as spatial relationship information; the third reference signal refers to a synchronization signal block SSB of a serving cell for acquiring MIB information of a master information block; the terminal can still transmit the uplink reference signal for positioning to the base station with proper transmitting power and correct transmitting beam direction under the condition that the path loss reference signal or the spatial relationship information reference signal cannot be obtained, so that the base station is ensured to accurately measure, and the positioning precision of the system is improved; the problem that in the prior art, under the condition that a path loss reference signal or a spatial relationship information reference signal cannot be obtained, a base station cannot accurately measure and positioning precision is affected is well solved.
Drawings
FIG. 1 is a flow chart of an information processing method according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating the use of spatial relationship reference information DL-PRS2 as a path loss calculation in an embodiment of the present invention;
FIG. 3 is a schematic diagram of an embodiment of the present invention using a path loss reference signal SSB2 as a spatial relationship setting;
FIG. 4 is a diagram illustrating the calculation of path loss using a third reference signal according to an embodiment of the present invention;
FIG. 5 is a schematic diagram illustrating a spatial relationship setting using a third reference signal according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of calculating the path loss using SSB1 or DL-PRS2 in an embodiment of the present invention;
FIG. 7 is a schematic diagram of an embodiment of the present invention using a path loss reference signal SSB2 as a spatial relationship setting;
fig. 8 is a schematic structural diagram of a terminal according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of an information processing apparatus according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
The present invention provides an information processing method, applied to a terminal, as shown in fig. 1, for solving the problem that a base station cannot accurately perform measurement and positioning accuracy is affected when a path loss reference signal or a spatial relationship information reference signal cannot be obtained in the prior art, including:
step 11: performing a first operation using the provided or configured second signal when the first signal is not provided or not configured;
wherein the first signal comprises at least one of a first reference signal and a second reference signal;
the second signal comprises at least one of a first reference signal, a second reference signal and a third reference signal, and the first signal is different from the second signal;
the first operation comprises at least one of calculating a path loss and setting a spatial relationship;
the first reference signal is used as a reference signal of a path loss reference; the second reference signal refers to a reference signal used as spatial relationship information; the third reference signal refers to a synchronization signal block SSB of a serving cell for acquiring information of a master information block MIB.
The information processing method provided by the embodiment of the invention adopts the provided or configured second signal to execute the first operation when the first signal is not provided or configured; wherein the first signal comprises at least one of a first reference signal and a second reference signal; the second signal comprises at least one of a first reference signal, a second reference signal and a third reference signal, and the first signal is different from the second signal; the first operation comprises at least one of calculating a path loss and setting a spatial relationship; the first reference signal is used as a reference signal of a path loss reference; the second reference signal refers to a reference signal used as spatial relationship information; the third reference signal refers to a synchronization signal block SSB of a serving cell for acquiring MIB information of a master information block; the terminal can still transmit the uplink reference signal for positioning to the base station with proper transmitting power and correct transmitting beam direction under the condition that the path loss reference signal or the spatial relationship information reference signal cannot be obtained, so that the base station is ensured to accurately measure, and the positioning precision of the system is improved; the problem that in the prior art, under the condition that a path loss reference signal or a spatial relationship information reference signal cannot be obtained, a base station cannot accurately measure and positioning precision is affected is well solved.
Wherein, in the case that the first signal is the first reference signal and the second signal is the second reference signal, the first operation is to calculate a path loss.
In this embodiment of the present invention, when the first signal is the first reference signal and the second signal is the second reference signal, the configuration information of the second reference signal, which is notified to the terminal, includes the transmission power information of the second reference signal.
Specifically, in a case where the first signal is the first reference signal and the second signal is the second reference signal, the performing a first operation using the provided or configured second signal includes: and under the condition that the number of the second signals is at least two, calculating the path loss by adopting the second signal with the maximum Reference Signal Received Power (RSRP).
In this embodiment of the present invention, when the first signal is the first reference signal, the second signal is the second reference signal, and the second signal is a sounding reference signal SRS sent by the terminal to a serving cell, the second signal is not used to calculate a path loss.
Wherein, when the first signal is the second reference signal and the second signal is the first reference signal, the first operation refers to setting a spatial relationship.
Specifically, in a case where the first signal is the second reference signal and the second signal is the first reference signal, the performing a first operation using the provided or configured second signal includes: and under the condition that the number of the second signals is at least two, adopting the second signal with the maximum Reference Signal Received Power (RSRP) value to set the spatial relation.
In this embodiment of the present invention, in a case that the second signal is the third reference signal, the performing a first operation using the provided or configured second signal includes: performing a first operation using the reference resources obtained in the SSB.
The information processing method provided by the embodiment of the invention is further explained below.
Based on the above problems, embodiments of the present invention provide an information processing method, which may be specifically implemented as a configuration method of fallback path loss reference information or spatial relationship reference information; mainly relates to: if the terminal is not provided or configured with the first reference signal and/or the second reference signal, the terminal calculates a path loss or sets a spatial relationship using at least one of the first reference signal, the second reference signal, and the third reference signal. Wherein, the first reference signal refers to a reference signal provided or configured by the terminal to be used as a path loss reference; the second reference signal refers to a reference signal used as spatial relationship information provided or configured by the terminal; the third reference signal refers to an SSB (synchronization signal block) of a serving cell of the terminal for acquiring MIB (master information block) information.
Specifically, the scheme provided by the embodiment of the invention relates to the following four parts:
a first part if the terminal does not provide or configure the first reference signal;
(1) if the terminal is not provided or configured with the first reference signal, the terminal calculates a path loss using the third reference signal.
(2) If the terminal is not provided or not configured with the first reference signal but is provided or configured with the second reference signal, the terminal calculates a path loss using the second reference signal. The configuration information of the second reference signal notified to the terminal includes the transmission power information of the second reference signal.
(3) If the terminal configures a plurality of second reference signals, path loss is calculated using the second reference signal having the largest RSRP (reference Signal received Power) value.
(4) If the second reference signal of the terminal is an SRS (sounding reference signal) sent by the terminal to the serving cell, the terminal does not use the second reference signal to calculate the path loss.
A second part, if the terminal does not provide or configure a second reference signal;
(5) if the terminal is not provided or configured with the second reference signal, the terminal sets a spatial relationship using the third reference signal.
(6) If the terminal is not provided or not configured with the second reference signal but is provided or configured with the first reference signal, the terminal sets the spatial relationship using the first reference signal.
(7) If the terminal is configured with a plurality of first reference signals, the spatial relationship is set using the first reference signal with the largest RSRP value.
A third part, if the terminal does not provide or configure the first reference signal and the second reference signal;
(8) if the terminal is not provided or configured with the first reference signal and the second reference signal, the terminal calculates a path loss using the third reference signal.
(9) The terminal sets a spatial relationship using the third reference signal if the terminal is not provided or configured with the first reference signal and the second reference signal.
(10) In all the above schemes, the terminal uses the third reference signal to calculate the path loss, which means that the terminal uses the RS (reference signal) resource obtained in the SSB from the serving cell from which the terminal is used to obtain the MIB (which can also be understood as using the RS resource in the SSB, and the serving cell from which the SSB is used to obtain the MIB; i.e. the above-mentioned reference resource).
(11) In all the above schemes, the terminal uses the third reference signal to set the spatial relationship, which means that the terminal uses the RS resource obtained in the SSB from the serving cell from which the terminal acquires the MIB to set the spatial relationship.
Fourthly, the terminal calculates the behavior after the path loss and the spatial relationship are set;
(12) in all the above schemes, after the terminal calculates the path loss using the first reference signal, the second reference signal, or the third reference signal, the terminal performs power control according to the obtained path loss, and sends the uplink reference signal for positioning.
(13) In all the above schemes, after the terminal sets the spatial relationship using the first reference signal, the second reference signal, or the third reference signal, the terminal adjusts the direction of the transmission beam according to the set spatial relationship, and transmits the uplink reference signal for positioning.
The scheme provided by the embodiment of the invention is illustrated below.
Example 1 (if the terminal does not provide or configure the first reference signal):
if the terminal is not provided or configured with the first reference signal, the terminal calculates a path loss using at least one of the second reference signal and the third reference signal.
Wherein, the first reference signal refers to a reference signal provided or configured by the terminal to be used as a path loss reference; the second reference signal refers to a reference signal used as spatial relationship information provided or configured by the terminal; the third reference signal refers to an SSB of a serving cell of the terminal for acquiring MIB information.
If the terminal is not provided or configured with the first reference signal, the terminal calculates a path loss using the third reference signal.
If the terminal is not provided or not configured with the first reference signal but is provided or configured with the second reference signal, the terminal calculates a path loss using the second reference signal. The configuration information of the second reference signal notified to the terminal includes the transmission power information of the second reference signal.
If the terminal is configured with a plurality of second reference signals, the path loss is calculated by using the second reference signal with the maximum RSRP value.
If the second reference signal of the terminal is the SRS sent by the terminal to the serving cell, the terminal does not use the second reference signal to calculate the path loss.
Specifically, as shown in fig. 2, the serving cell of the terminal UE1 for acquiring MIB information is a cell 1 in its serving base station gNB1, and the UE1 acquires MIB information from the SSB1 information issued by the cell 1 of the gNB1, thereby completing system access. And the UE1 needs to first determine the SRS-Pos2 transmit power before transmitting the SRS-Pos2 to the neighbor base station gNB 2. If the UE1 is provided with a reference signal for path loss reference, then the UE1 may calculate the path loss from the path loss reference signal and make the transmit power setting. However, the pathloss reference signal is an optional configuration, so that the terminal may not be provided with the information, and at this time, the terminal may not be able to determine the transmission power of its SRS-Pos2, which may result in inaccurate transmission power setting and affect the positioning accuracy. Therefore, to address this issue, in this example, if the terminal is not provided or configured with the first reference signal, the terminal uses the third reference signal (i.e., SSB1 in fig. 2, SSB1 is the SSB sent by the serving cell that UE1 uses to obtain MIB information) to calculate the path loss; alternatively, if the terminal is configured with a second reference signal (i.e., DL-PRS (downlink positioning reference signal) 2 in fig. 2, DL-PRS2 would have been used as a spatial relationship reference signal), the terminal may also use the second reference signal to calculate the path loss.
It should be noted that, in order to facilitate the terminal to calculate the path loss, the second reference signal used for calculating the terminal path loss needs to be configured with the transmission power information when performing the configuration.
By adopting the method in the example, the path loss can be calculated by using the SSB or spatial relationship reference information of the serving cell provided for the terminal, so that the transmission power setting is more accurate when the terminal transmits the uplink reference signal for positioning, and the positioning accuracy of the system is improved.
Example 2 (if the terminal does not provide or configure the second reference signal):
the terminal sets the spatial relationship using at least one of the first reference signal and the third reference signal if the terminal is not provided or is not configured with the second reference signal.
Wherein, the first reference signal refers to a reference signal provided or configured by the terminal to be used as a path loss reference; the second reference signal refers to a reference signal used as spatial relationship information provided or configured by the terminal; the third reference signal refers to an SSB of a serving cell of the terminal for acquiring MIB information.
If the terminal is not provided or configured with the second reference signal, the terminal sets a spatial relationship using the third reference signal.
If the terminal is not provided or not configured with the second reference signal but is provided or configured with the first reference signal, the terminal sets the spatial relationship using the first reference signal.
If the terminal is configured with a plurality of first reference signals, the spatial relationship is set using the first reference signal with the largest RSRP value.
Specifically, as shown in fig. 3, the serving cell of the terminal UE1 for acquiring MIB information is a cell 1 in its serving base station gNB1, and the UE1 acquires MIB information from the SSB1 information issued by the cell 1 of the gNB1, thereby completing system access. And the UE1 needs to first determine the transmit beam direction of the SRS-Pos2 before transmitting the SRS-Pos2 to the neighbor base station gNB 2. If the UE1 is provided with a reference signal for spatial relationship information, the UE1 may determine the spatial relationship information from the reference signal and make transmit beam direction settings. However, the reference signal used as the spatial relationship information is an optional configuration, so that the terminal may not be provided with the information, and at this time, the terminal may not be able to determine the transmitting beam direction of its SRS-Pos2, which may result in inaccurate transmitting beam direction setting and affect the positioning accuracy. Therefore, to solve this problem, in this example, if the terminal is not provided or configured with the second reference signal, the terminal uses the third reference signal (i.e. SSB1 in fig. 3, SSB1 is the SSB sent by the serving cell that UE1 uses to obtain MIB information) to set the spatial relationship; alternatively, if the terminal is configured with the first reference signal (i.e., SSB2, SSB2 in fig. 3 would otherwise be used as a path loss reference signal), the terminal may also use the first reference signal to set the spatial relationship.
By adopting the method in the example, the spatial relationship can be set by using the SSB or the path loss reference signal which is provided for the service cell of the terminal, so that the direction of the transmitting beam is set more accurately when the terminal sends the uplink reference signal for positioning, and the positioning precision of the system is improved.
Example 3 (if the terminal does not provide or configure the first reference signal and the second reference signal):
if the terminal is not provided or configured with the first reference signal and the second reference signal, the terminal calculates the path loss using the third reference signal.
In all the above schemes, the terminal calculates the path loss using the third reference signal, which means that the terminal calculates the path loss using RS resources obtained in the SSB from the serving cell from which the terminal acquires the MIB.
Specifically, as shown in fig. 4, the serving cell of the terminal UE1 for acquiring MIB information is a cell 1 in its serving base station gNB1, and the UE1 acquires MIB information from the SSB1 information issued by the cell 1 of the gNB1, thereby completing system access. And the UE1 needs to first determine the SRS-Pos2 transmit power before transmitting the SRS-Pos2 to the neighbor base station gNB 2. If the UE1 is not provided with either the first reference signal or the second reference signal, then the terminal may not be able to determine its SRS-Pos2 transmit power, resulting in inaccurate transmit power settings and poor positioning accuracy. Therefore, to solve this problem, in this example, if the terminal is not provided or configured with the first reference signal and the second reference signal, the terminal uses the third reference signal (i.e. SSB1 in fig. 4, SSB1 is the SSB sent by the serving cell that UE1 uses to obtain MIB information) to calculate the path loss.
By adopting the method in the example, the path loss can be calculated by using the SSB of the service cell of the terminal, which is obtained by the terminal, so that the transmission power setting is more accurate when the terminal sends the uplink reference signal for positioning, and the positioning precision of the system is improved.
Example 4 (if the terminal does not provide or configure the first reference signal and the second reference signal):
if the terminal is not provided or configured with the first reference signal and the second reference signal, the terminal sets a spatial relationship using the third reference signal.
In all the above schemes, the terminal uses the third reference signal to set the spatial relationship, which means that the terminal uses the RS resource obtained in the SSB from the serving cell from which the terminal acquires the MIB to set the spatial relationship.
Specifically, as shown in fig. 5, the serving cell of the terminal UE1 for acquiring MIB information is a cell 1 in its serving base station gNB1, and the UE1 acquires MIB information from the SSB1 information issued by the cell 1 of the gNB1, thereby completing system access. And the UE1 needs to first determine the transmit beam direction of the SRS-Pos2 before transmitting the SRS-Pos2 to the neighbor base station gNB 2. If the UE1 is not provided with either the first reference signal or the second reference signal, the terminal may not be able to determine the transmit beam direction of its SRS-Pos2, resulting in inaccurate transmit beam direction settings and poor positioning accuracy. Therefore, to solve this problem, in the present example, if the terminal is not provided or configured with the first reference signal and the second reference signal, the terminal uses the third reference signal (i.e. SSB1 in fig. 5, SSB1 is the SSB sent by the serving cell that UE1 uses to obtain MIB information) to set the spatial relationship.
By adopting the method in the example, the spatial relationship can be set by using the SSB of the serving cell of the terminal, which is already obtained by the terminal, so that the direction of the transmitted beam is set more accurately when the terminal sends the uplink reference signal for positioning, and the positioning precision of the system is improved.
Example 5 (behavior after the terminal calculates the path loss):
in all the above schemes, after the terminal calculates the path loss using the first reference signal, the second reference signal, or the third reference signal, the terminal performs power control according to the obtained path loss, and sends the uplink reference signal for positioning.
Specifically, as shown in fig. 6, before transmitting the uplink reference signal for positioning, the terminal performs open-loop or closed-loop power control according to the path loss obtained from the SSB1 or from the DL-PRS 2. The path loss is obtained by receiving RSRP through SSB1 or DL-PRS2 and combining the transmission power of SSB1 or DL-PRS2, so that the path loss between UE1 and gNB2 can be calculated. Then, according to the path loss, a power setting method of partial path loss compensation is adopted to calculate the transmission power of the SRS-Pos2 sent to the gNB 2. In the path loss calculation process, it is assumed that the channel has reciprocity between an uplink channel and a downlink channel, that is: the UE1 may derive the uplink channel path loss from the downlink channel path loss. Of course, if the path loss reference signal itself is the uplink reference signal, it is not necessary to assume that the channel has the reciprocity between the uplink and downlink channels.
By adopting the method in the example, the path loss can be calculated by using the SSB or spatial relationship reference information of the serving cell provided for the terminal, so that the transmission power setting is more accurate when the terminal transmits the uplink reference signal for positioning, and the positioning accuracy of the system is improved.
Example 6 (behavior after the terminal sets the spatial relationship):
in all the above schemes, after the terminal sets the spatial relationship using the first reference signal, the second reference signal, or the third reference signal, the terminal adjusts the direction of the transmission beam according to the set spatial relationship, and transmits the uplink reference signal for positioning.
Specifically, as shown in fig. 7, before transmitting the uplink reference signal for positioning, the terminal performs transmit beam direction setting according to spatial relationship information obtained from the SSB1 or from the SSB 2. The spatial relationship information is obtained by the receive beam direction of SSB1 or SSB2, so that the transmit beam direction between UE1 and gNB2 can be obtained. Then, from the transmit beam direction, the transmit beam direction of the SRS-Pos2 sent to the gNB2 is determined. In the process of determining the direction of the transmitting beam, the channel is assumed to have reciprocity of transmitting and receiving directions, namely: the UE1 may derive the transmit beam direction from the receive beam direction. Of course, if the spatial relationship information reference signal is itself the uplink reference signal, it is not necessary to assume that the channel has reciprocity in the transmitting and receiving directions.
By adopting the method in this example, the spatial relationship can be set by using the SSB or the path loss reference signal of the serving cell that has been provided to the terminal, so that the direction setting of the transmission beam is more accurate when the terminal transmits the uplink reference signal for positioning, thereby improving the positioning accuracy of the system.
In this description, the LMF referred to in the drawings of the embodiments of the present invention represents a location management function unit.
As can be seen from the above, embodiments of the present invention provide a method for configuring fallback path loss reference information or spatial relationship reference information, and compared with the prior art, by using the method for configuring fallback path loss reference information or spatial relationship reference information provided in the present invention, path loss calculation or spatial relationship setting can be performed by using spatial relationship reference information or path loss reference information that has been provided to a terminal, so that when the terminal sends an uplink reference signal for positioning, the sending power setting or the sending beam direction setting is more accurate, thereby improving the positioning accuracy of a system.
An embodiment of the present invention further provides a terminal, as shown in fig. 8, including a memory 81, a processor 82, a transceiver 83, and a program 84 stored on the memory 81 and operable on the processor 82; the processor 82 implements the following steps when executing the program 84:
when the first signal is not provided or configured, performing a first operation using the provided or configured second signal;
wherein the first signal comprises at least one of a first reference signal and a second reference signal;
the second signal comprises at least one of a first reference signal, a second reference signal and a third reference signal, and the first signal is different from the second signal;
the first operation comprises at least one of calculating a path loss and setting a spatial relationship;
the first reference signal is used as a reference signal of a path loss reference; the second reference signal refers to a reference signal used as spatial relationship information; the third reference signal refers to a synchronization signal block SSB of a serving cell for acquiring information of a master information block MIB.
The terminal provided by the embodiment of the invention executes a first operation by adopting a provided or configured second signal when the first signal is not provided or configured; wherein the first signal comprises at least one of a first reference signal and a second reference signal; the second signal comprises at least one of a first reference signal, a second reference signal and a third reference signal, and the first signal is different from the second signal; the first operation comprises at least one of calculating a path loss and setting a spatial relationship; the first reference signal is used as a reference signal of a path loss reference; the second reference signal refers to a reference signal used as spatial relationship information; the third reference signal refers to a synchronization signal block SSB of a serving cell for acquiring MIB information of a master information block; the terminal can still transmit the uplink reference signal for positioning to the base station with proper transmitting power and correct transmitting beam direction under the condition that the path loss reference signal or the spatial relationship information reference signal cannot be obtained, so that the base station is ensured to accurately measure, and the positioning precision of the system is improved; the problem that in the prior art, under the condition that a path loss reference signal or a spatial relationship information reference signal cannot be obtained, a base station cannot accurately measure and positioning precision is affected is well solved.
Wherein, in the case that the first signal is the first reference signal and the second signal is the second reference signal, the first operation is to calculate a path loss.
In this embodiment of the present invention, when the first signal is the first reference signal and the second signal is the second reference signal, the configuration information of the second reference signal, which is notified to the terminal, includes the transmission power information of the second reference signal.
Specifically, when the first signal is the first reference signal and the second signal is the second reference signal, the processor is specifically configured to: and under the condition that the number of the second signals is at least two, calculating the path loss by adopting the second signal with the maximum Reference Signal Received Power (RSRP).
In this embodiment of the present invention, when the first signal is the first reference signal, the second signal is the second reference signal, and the second signal is a sounding reference signal SRS sent by the terminal to a serving cell, the second signal is not used to calculate a path loss.
Wherein, in the case that the first signal is the second reference signal and the second signal is the first reference signal, the first operation refers to setting a spatial relationship.
Specifically, when the first signal is the second reference signal and the second signal is the first reference signal, the processor is specifically configured to: and under the condition that the number of the second signals is at least two, adopting the second signal with the maximum Reference Signal Received Power (RSRP) value to set the spatial relation.
In this embodiment of the present invention, when the second signal is the third reference signal, the processor is specifically configured to: performing a first operation using the reference resources obtained in the SSB.
The implementation embodiments of the information processing method are all applicable to the embodiment of the terminal, and the same technical effect can be achieved.
An embodiment of the present invention further provides a readable storage medium, on which a program is stored, and the program, when executed by a processor, implements the steps of the information processing method described above.
The implementation embodiments of the information processing method are all applicable to the embodiment of the readable storage medium, and the same technical effects can be achieved.
An embodiment of the present invention further provides an information processing apparatus, which is applied to a terminal, and as shown in fig. 9, includes:
a first processing module 91 for performing a first operation using the provided or configured second signal when the first signal is not provided or configured;
wherein the first signal comprises at least one of a first reference signal and a second reference signal;
the second signal comprises at least one of a first reference signal, a second reference signal and a third reference signal, and the first signal is different from the second signal;
the first operation comprises at least one of calculating a path loss and setting a spatial relationship;
the first reference signal is used as a reference signal of a path loss reference; the second reference signal refers to a reference signal used as spatial relationship information; the third reference signal refers to a synchronization signal block SSB of a serving cell for acquiring information of a master information block MIB.
The information processing apparatus provided by the embodiment of the present invention performs a first operation by using a second signal that is provided or configured when the first signal is not provided or configured; wherein the first signal comprises at least one of a first reference signal and a second reference signal; the second signal comprises at least one of a first reference signal, a second reference signal and a third reference signal, and the first signal is different from the second signal; the first operation comprises at least one of calculating a path loss and setting a spatial relationship; the first reference signal is used as a reference signal of a path loss reference; the second reference signal refers to a reference signal used as spatial relationship information; the third reference signal refers to a synchronization signal block SSB of a serving cell for acquiring MIB information of a master information block; the terminal can still transmit the uplink reference signal for positioning to the base station with proper transmitting power and correct transmitting beam direction under the condition that the path loss reference signal or the spatial relationship information reference signal cannot be obtained, so that the base station is ensured to accurately measure, and the positioning precision of the system is improved; the problem that in the prior art, under the condition that a path loss reference signal or a spatial relationship information reference signal cannot be obtained, a base station cannot accurately measure and positioning precision is affected is well solved.
Wherein, in a case where the first signal is the first reference signal and the second signal is the second reference signal, the first operation is to calculate a path loss.
In this embodiment of the present invention, when the first signal is the first reference signal and the second signal is the second reference signal, the configuration information of the second reference signal notified to the terminal includes the transmission power information of the second reference signal.
Specifically, when the first signal is the first reference signal and the second signal is the second reference signal, the first processing module includes: a first processing sub-module, configured to calculate a path loss using the second signal with the largest reference signal received power RSRP value if the number of the second signals is at least two.
In this embodiment of the present invention, when the first signal is the first reference signal, the second signal is the second reference signal, and the second signal is a sounding reference signal SRS sent by the terminal to a serving cell, the second signal is not used to calculate a path loss.
Wherein, in the case that the first signal is the second reference signal and the second signal is the first reference signal, the first operation refers to setting a spatial relationship.
Specifically, when the first signal is the second reference signal and the second signal is the first reference signal, the first processing module includes: and the second processing submodule is used for setting the spatial relationship by adopting the second signal with the maximum Reference Signal Received Power (RSRP) value under the condition that the number of the second signals is at least two.
In an embodiment of the present invention, in a case that the second signal is the third reference signal, the first processing module includes: a third processing sub-module, configured to perform the first operation using the reference resource obtained in the SSB.
The implementation embodiments of the information processing method are all applicable to the embodiment of the information processing device, and the same technical effects can be achieved.
It should be noted that many of the functional components described in this specification are referred to as modules/sub-modules in order to more particularly emphasize their implementation independence.
In embodiments of the invention, the modules/sub-modules may be implemented in software for execution by various types of processors. An identified module of executable code may, for instance, comprise one or more physical or logical blocks of computer instructions which may, for instance, be constructed as an object, procedure, or function. Nevertheless, the executables of an identified module need not be physically located together, but may comprise disparate instructions stored in different bits which, when joined logically together, comprise the module and achieve the stated purpose for the module.
Indeed, a module of executable code may be a single instruction, or many instructions, and may even be distributed over several different code segments, among different programs, and across several memory devices. Similarly, operational data may be identified within modules, and may be embodied in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed over different locations including over different storage devices, and may exist, at least partially, merely as electronic signals on a system or network.
When a module can be implemented by software, considering the level of existing hardware technology, a module implemented by software may build a corresponding hardware circuit to implement a corresponding function, without considering cost, and the hardware circuit may include a conventional Very Large Scale Integration (VLSI) circuit or a gate array and an existing semiconductor such as a logic chip, a transistor, or other discrete components. A module may also be implemented in programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices or the like.
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.

Claims (16)

1. An information processing method applied to a terminal is characterized by comprising the following steps:
performing a first operation using the provided or configured second signal when the first signal is not provided or not configured;
wherein the first signal comprises at least one of a first reference signal and a second reference signal;
the second signal comprises at least one of a first reference signal, a second reference signal and a third reference signal, and the first signal is different from the second signal;
the first operation comprises at least one of calculating a path loss and setting a spatial relationship;
the first reference signal is used as a reference signal of path loss reference; the second reference signal refers to a reference signal used as spatial relationship information; the third reference signal refers to a synchronization signal block SSB of a serving cell for acquiring MIB information of a master information block;
and when the first signal is the first reference signal and the second signal is the second reference signal, the configuration information of the second reference signal, which is notified to the terminal, includes the transmission power information of the second reference signal.
2. The information processing method according to claim 1, wherein the first operation is to calculate a path loss when the first signal is the first reference signal and the second signal is the second reference signal.
3. The information processing method according to claim 1 or 2, wherein in a case where the first signal is the first reference signal and the second signal is the second reference signal, the performing a first operation using the provided or configured second signal includes:
and under the condition that the number of the second signals is at least two, calculating the path loss by adopting the second signal with the maximum Reference Signal Received Power (RSRP).
4. The information processing method according to claim 1, wherein when the first signal is the first reference signal, the second signal is the second reference signal, and the second signal is a Sounding Reference Signal (SRS) sent by the terminal to a serving cell, path loss is calculated without using the second signal.
5. The information processing method according to claim 1, wherein the first operation means setting a spatial relationship in a case where the first signal is the second reference signal and the second signal is the first reference signal.
6. The information processing method according to claim 1 or 5, wherein in a case where the first signal is the second reference signal and the second signal is the first reference signal, the performing a first operation using the provided or configured second signal includes:
and under the condition that the number of the second signals is at least two, adopting the second signal with the maximum Reference Signal Received Power (RSRP) value to set the spatial relation.
7. The information processing method according to claim 1, wherein, in a case where the second signal is the third reference signal, the performing a first operation using the provided or configured second signal includes:
performing a first operation using the reference resources obtained in the SSB.
8. A terminal comprising a memory, a processor, a transceiver, and a program stored on the memory and executable on the processor; wherein the processor implements the following steps when executing the program:
performing a first operation using the provided or configured second signal when the first signal is not provided or not configured;
wherein the first signal comprises at least one of a first reference signal and a second reference signal;
the second signal comprises at least one of a first reference signal, a second reference signal and a third reference signal, and the first signal is different from the second signal;
the first operation comprises at least one of calculating a path loss and setting a spatial relationship;
the first reference signal is used as a reference signal of a path loss reference; the second reference signal refers to a reference signal used as spatial relationship information; the third reference signal refers to a synchronization signal block SSB of a serving cell for acquiring MIB information of a master information block;
and when the first signal is the first reference signal and the second signal is the second reference signal, the configuration information of the second reference signal, which is notified to the terminal, includes the transmission power information of the second reference signal.
9. The terminal of claim 8, wherein the first operation is to calculate a path loss if the first signal is the first reference signal and the second signal is the second reference signal.
10. The terminal according to claim 8 or 9, wherein the processor is specifically configured to, in case the first signal is the first reference signal and the second signal is the second reference signal:
and under the condition that the number of the second signals is at least two, calculating the path loss by adopting the second signal with the maximum Reference Signal Received Power (RSRP).
11. The terminal of claim 8, wherein when the first signal is the first reference signal, the second signal is the second reference signal, and the second signal is a Sounding Reference Signal (SRS) sent by the terminal to a serving cell, the second signal is not used to calculate a path loss.
12. The terminal of claim 8, wherein the first operation is to set a spatial relationship when the first signal is the second reference signal and the second signal is the first reference signal.
13. The terminal according to claim 8 or 12, wherein in case the first signal is the second reference signal and the second signal is the first reference signal, the processor is specifically configured to:
and under the condition that the number of the second signals is at least two, adopting the second signal with the maximum Reference Signal Received Power (RSRP) value to set the spatial relation.
14. The terminal of claim 8, wherein in the case that the second signal is the third reference signal, the processor is specifically configured to:
performing a first operation using the reference resources obtained in the SSB.
15. A readable storage medium on which a program is stored, characterized in that the program realizes the steps of the information processing method according to any one of claims 1 to 7 when executed by a processor.
16. An information processing apparatus applied to a terminal, comprising:
a first processing module for performing a first operation using a provided or configured second signal when the first signal is not provided or configured;
wherein the first signal comprises at least one of a first reference signal and a second reference signal;
the second signal comprises at least one of a first reference signal, a second reference signal and a third reference signal, and the first signal is different from the second signal;
the first operation comprises at least one of calculating a path loss and setting a spatial relationship;
the first reference signal is used as a reference signal of a path loss reference; the second reference signal refers to a reference signal used as spatial relationship information; the third reference signal refers to a synchronization signal block SSB of a serving cell for acquiring MIB information of a master information block;
and when the first signal is the first reference signal and the second signal is the second reference signal, the configuration information of the second reference signal, which is notified to the terminal, includes the transmission power information of the second reference signal.
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