CN114745744A - Cell measurement method, cell measurement device, terminal equipment and computer readable storage medium - Google Patents

Cell measurement method, cell measurement device, terminal equipment and computer readable storage medium Download PDF

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Publication number
CN114745744A
CN114745744A CN202210355568.XA CN202210355568A CN114745744A CN 114745744 A CN114745744 A CN 114745744A CN 202210355568 A CN202210355568 A CN 202210355568A CN 114745744 A CN114745744 A CN 114745744A
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China
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measurement object
measurement
receiving
frequency point
frequency
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Chinese (zh)
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吴晓荣
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Priority to CN202210355568.XA priority Critical patent/CN114745744A/en
Publication of CN114745744A publication Critical patent/CN114745744A/en
Priority to PCT/CN2023/078786 priority patent/WO2023193543A1/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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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

Abstract

The application relates to a cell measurement method, a device, a terminal device and a computer readable storage medium, wherein the method comprises the following steps: identifying a combination of measurement objects satisfying a merged reception condition among a plurality of measurement objects to be measured; wherein, the measuring object combination comprises at least two measuring objects; combining and receiving reference signals corresponding to the measurement object combination to obtain combined and received signals; and measuring the combined and received signals to obtain cell measurement results corresponding to each measurement object in the measurement object combination. By adopting the method, the signal receiving times of a plurality of measuring objects to be measured can be reduced, the power consumption of the terminal equipment can be reduced, and the resource utilization rate of the terminal equipment can be improved.

Description

Cell measurement method, cell measurement device, terminal equipment and computer readable storage medium
Technical Field
The present application relates to the field of terminal technologies, and in particular, to a cell measurement method, an apparatus, a terminal device, and a computer-readable storage medium.
Background
In New Radio (NR) cell measurement, a terminal device may measure a Synchronization Signal and PBCH block (SSB). In order to implement mobility management of the terminal device in the connected state, the network Measurement may configure a specific Measurement time window, that is, a Measurement interval (Gap, or Gap for short), for the terminal device. The terminal device may perform common-frequency measurement, different-mode measurement, and the like in one measurement interval to report measurement results such as Reference Signal Receiving Power (RSRP), Reference Signal Receiving Quality (RSRQ), or Signal-to-noise ratio (SNR) to the network measurement.
In the same measurement interval, the terminal device needs to measure a plurality of measurement objects, and performs an independent synchronization signal reception for each measurement object, which results in a waste of resources of the terminal device.
Disclosure of Invention
The embodiment of the application provides a cell measurement method, a cell measurement device, a terminal device and a computer readable storage medium, which can improve the resource utilization rate of the terminal device.
In a first aspect, a cell measurement method is provided, and the method includes:
identifying a combination of measurement objects satisfying a combining reception condition among a plurality of measurement objects to be measured; wherein, the measuring object combination comprises at least two measuring objects;
combining and receiving reference signals corresponding to the measurement object combination to obtain combined and received signals;
and measuring the combined and received signals to obtain cell measurement results corresponding to each measurement object in the measurement object combination.
In a second aspect, an apparatus for cell measurement is provided, the apparatus comprising:
an identification module for identifying a combination of measurement objects satisfying a merge reception condition among a plurality of measurement objects to be measured; wherein, the measuring object combination comprises at least two measuring objects;
the receiving module is used for carrying out merging and receiving on the reference signals corresponding to the measurement object combination to obtain merged received signals;
and the measurement module is used for measuring the combined and received signals to obtain cell measurement results corresponding to each measurement object in the measurement object combination.
In a third aspect, a terminal device is provided, which includes a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor is caused to execute the steps of the cell measurement method in the first aspect.
In a fourth aspect, there is provided a computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the cell measurement method of the first aspect described above.
In a fifth aspect, a computer program product is provided, comprising a computer program which, when executed by a processor, performs the steps of the cell measurement method of the first aspect.
The cell measurement method, the cell measurement device, the terminal equipment and the computer readable storage medium have the advantages that the terminal equipment identifies the measurement object combination meeting the merging receiving condition in a plurality of measurement objects to be measured; then, combining and receiving the reference signals corresponding to the measurement object combination to obtain combined and received signals; finally, measuring the combined and received signals to obtain cell measurement results corresponding to each measurement object in the measurement object combination; wherein, the measuring object combination comprises at least two measuring objects. The terminal equipment identifies the measurement object combination meeting the combination receiving condition, so that the reference signals of at least two measurement objects in the measurement object combination can be combined and received, the signal receiving times of a plurality of measurement objects to be measured are reduced, and the power consumption of the terminal equipment can be reduced. For the terminal equipment in the connection state, the utilization efficiency of the measurement interval can be improved, the requirement on the measurement interval is reduced, the mobility performance of the terminal equipment is improved, and the user experience is improved; for the terminal equipment in an idle state, the number of times of awakening the terminal equipment can be reduced by reducing the number of signal receiving times, and the power consumption of the terminal equipment is reduced; further, for a terminal device with a strong capability, the signal receiving capability of the terminal device can be fully utilized to simultaneously receive the reference signals of a plurality of measurement objects, and the resource utilization rate of the terminal device is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is an application environment diagram of a cell measurement method according to an embodiment of the present application;
fig. 2 is a flowchart of a cell measurement method according to an embodiment of the present application;
FIG. 3 is a schematic view of a measurement object according to an embodiment of the present application;
fig. 4 is a flowchart of a cell measurement method according to an embodiment of the present application;
fig. 5 is a flowchart of a cell measurement method according to an embodiment of the present application;
fig. 6 is a flowchart of a cell measurement method according to an embodiment of the present application;
fig. 7 is a flowchart of a cell measurement method according to an embodiment of the present application;
fig. 8 is a diagram illustrating a cell measurement method according to an embodiment of the present application;
fig. 9 is a flowchart of a cell measurement method according to an embodiment of the present application;
fig. 10 is a diagram illustrating a cell measurement method according to an embodiment of the present application;
fig. 11 is a flowchart of a cell measurement method according to an embodiment of the present application;
fig. 12 is a diagram illustrating a cell measurement method according to an embodiment of the present application;
fig. 13 is a diagram illustrating a cell measurement method according to an embodiment of the present application;
fig. 14 is a diagram illustrating a cell measurement method according to an embodiment of the present application;
fig. 15 is a flowchart of a cell measurement method according to an embodiment of the present application;
fig. 16 is a block diagram of a cell measurement apparatus according to an embodiment of the present application;
fig. 17 is a block diagram of a cell measurement apparatus according to an embodiment of the present application;
fig. 18 is a schematic diagram of the internal structure of the terminal device in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, a first center frequency point may be referred to as a second center frequency point, and similarly, a second center frequency point may be referred to as a first center frequency point, without departing from the scope of the present application. Both the first and second central frequency points are central frequency points, but they are not the same central frequency point.
Fig. 1 is a schematic view of an application scenario of a cell measurement method according to an embodiment of the present application. As shown in fig. 1, the application environment includes a terminal device 100, and the terminal device 100 may measure reference signals of a plurality of cells 200. The network devices covering the above cells may include, but are not limited to: a base station NodeB, an evolved node b, a base station in the fifth generation (5G) communication system, a base station or network device in a future communication system, an access node in a WiFi system, a wireless relay node, a wireless backhaul node, and the like. The network device may also be a wireless controller, a small station, a transmission node (TRP), a Road Side Unit (RSU), and the like in a Cloud Radio Access Network (CRAN) scene. The embodiments of the present application do not limit the specific technologies and the specific device forms adopted by the network devices. The terminal device may be a device with a wireless transceiving function, and may be, but not limited to, a handheld, wearable, or vehicle-mounted device; the terminal device may be a mobile phone, a tablet computer, a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in self-driving (self-driving), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), and the like. The embodiments of the present application do not limit the application scenarios.
The technical solution of the present application will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
In an embodiment, as shown in fig. 2, a cell measurement method is provided, which is described by taking the application of the method to the terminal device in fig. 1 as an example, and includes:
s102, identifying a measurement object combination meeting a merging receiving condition in a plurality of measurement objects to be measured; wherein, the measuring object combination comprises at least two measuring objects.
After the terminal device resides in the serving cell, the network side may configure a plurality of measurement objects (measurement objects) to the terminal device, where the measurement objects may be understood as measurement contents of one frequency point. Each measuring object corresponds to a central frequency point and a subcarrier interval; the center frequency points and/or the subcarrier intervals of different measurement objects are different. That is, for any two measurement objects configured on the network side, the central frequency points may be the same, and the subcarrier intervals are different; or the center frequency points are different and the subcarrier intervals are the same; it is also possible that the center frequency point and the subcarrier spacing are different.
The terminal device may receive the reference signal corresponding to each measurement object, and obtain a cell measurement result by measuring the reference signal. The measurement object configured by the network side for the terminal device may be used to receive a reference signal of one cell, and may also be used to receive reference signals of multiple cells, which is not limited herein. The cell may include a serving cell in which the terminal device resides, and may further include a neighboring cell of the serving cell.
The reference signal may include a signal used for the terminal device to perform a series of measurement operations such as co-frequency measurement, inter-frequency measurement and/or inter-frequency system measurement, and may also include a signal used for cell search (cell search) or cell detection (detect cell) such as time-frequency synchronization, cell ID information acquisition, and the like, where the type of the reference signal is not limited herein. Optionally, the reference signal may include at least one of an SSB signal and a cell reference signal. The SSB Signals may include Primary Synchronization Signals (PSS), Secondary Synchronization Signals (SSS), and Physical Broadcast Channel (PBCH) Signals. The Cell reference signal may include, but is not limited to, one or more of a New Radio-reference signal (NR-RS), a Cell-specific reference signal (C-RS), a demodulation reference signal (DM-RS), a channel state information reference signal (CSI-RS), a Beam Signal (BS), and a Beam reference signal (B-RS).
Taking the reference signal as an SSB signal as an example, the SSB signal transmitted by each cell occupies 4 OFDM symbols in time domain, and occupies 20 RBs, i.e. 240 subcarriers, in frequency domain. Therefore, when the subcarrier intervals are different, the frequency domain bandwidth required for transmitting the SSB signal is also different. Under the condition that the center frequency points and/or the subcarrier intervals of different measurement objects are different, the frequency domain receiving ranges corresponding to the measurement objects are also different, and the terminal equipment can receive the reference signals corresponding to the different measurement objects in the different frequency domain receiving ranges.
In addition, when configuring the measurement object for the terminal device, the network side may constrain a time domain reception range of the reference signal for each measurement object. Taking the reference signal as an SSB signal as an example, the network side may configure a Measurement time window (SSB-based RRM Measurement Configuration window, abbreviated as SMTC) for each Measurement object in the terminal device, and receive the SSB signal in the SMTC corresponding to each Measurement object. The SMTCs of each measurement object appear at certain intervals in the time domain, the duration is fixed, the period range can be {5,10,20,40,80,160} ms, and the window length can be {1,2,3,4,5} ms. The SMTC may be configured on a time axis of a serving cell where the terminal device resides, after the network side is configured, a time domain range determined by the terminal device according to the SMTC may be unchanged, and a starting position and an ending position of the SMTC of each measurement object may be aligned with a subframe boundary (subframe boundary) of the serving cell.
For a terminal device in a connected state, in order to implement mobility management of the terminal device in the connected state, each Measurement object may be measured within a specific Measurement interval (Gap for short). A switching time (switching time) may be set at the beginning and end of each Gap for the rf part to prepare for configuration and to make the hardware reach a stable state during the switching time.
Fig. 3 shows a plurality of measurement objects to be measured by the terminal device in one measurement interval. The network side may include a plurality of measurement objects configured for the terminal device within one measurement interval (which may be 6 ms); an RF switch time is set at the head and tail parts of the measurement interval. The center frequency points of the 6 measurement objects shown in the figure can be respectively represented as { f0, f1, f2, f3, f4, f5}, wherein { f0, f2} can belong to the same band ban1, and { f1, f3, f4, f5} can belong to another band ban 2; the center frequency point f1 and the center frequency point f4 may be the same, and the corresponding subcarrier intervals may be different. The SMTC corresponding to each measurement object may be as indicated by a label in the figure.
The terminal device may identify a combination of measurement objects satisfying the merged reception condition among the plurality of measurement objects to be measured. The measurement object combination may include 2 measurement objects, or may include 3 measurement objects, which is not limited herein.
The merged reception condition may be used to identify two or more measurement objects from which the terminal device can acquire the corresponding reference signal through one reception. The combining receiving condition may include a time domain combining receiving condition, which is used for the terminal device to identify from the time domain whether the reference signals of the multiple measurement objects can be combined and received. For example, the combining reception condition may be that the time domain reception ranges are the same, and the terminal device may determine two measurement objects with the same time domain reception range as a measurement object combination; alternatively, the combined receiving condition may be that the time domain receiving range of one measurement object is a subset of the time domain receiving range of another measurement object.
In another implementation, the combining receiving condition may include a frequency domain combining receiving condition, which is used for the terminal device to identify whether the reference signals of the multiple measurement objects can be combined and received from the frequency domain. For example, the combining reception condition may be that the frequency domain reception ranges are the same, and the terminal device may determine two measurement objects having the same frequency domain reception range as the measurement object combination. Or, the combining receiving condition may include a time domain combining receiving condition and a frequency domain combining receiving condition, and the terminal device may identify a plurality of measurement objects from the time domain and the frequency domain, respectively, and determine a measurement object combination that satisfies both the time domain combining receiving condition and the frequency domain combining receiving condition.
Optionally, the combining receiving condition may include: the frequency difference value between the central frequency points of the two measurement objects in the measurement object combination is smaller than a preset threshold value, and the time domain receiving ranges of the two measurement objects in the measurement object combination are overlapped. The terminal device may first determine from the time domain, determine whether there are multiple measurement objects with overlapping time domain receiving ranges in the multiple measurement objects, and then further screen out a measurement object combination in which a difference between the center frequencies is smaller than a preset threshold. In another implementation manner, the terminal device may determine two measurement objects with a frequency difference value smaller than a preset threshold as a candidate measurement object combination. And if the time domain receiving ranges of the two measuring objects in the candidate measuring object combination have an overlapping region, determining the candidate measuring object combination as the measuring object combination.
After the terminal device judges that the time domain receiving ranges of the two measuring objects are overlapped, the length of the overlapped time domain receiving range can be further compared with a preset time length threshold, and if the length of the overlapped time domain receiving range is larger than the preset time length threshold, the time domain combined receiving condition can be met.
For a plurality of measurement objects to be measured, the terminal device may identify a preset number of measurement object combinations in the plurality of measurement objects, for example, up to 2 sets of measurement object combinations. Alternatively, the terminal device may recognize all measurement object combinations in the plurality of measurement objects. In the measurement combination identified by the terminal device, the same measurement object can only belong to one of the measurement object combinations.
And S104, merging and receiving the reference signals corresponding to the measurement object combination to obtain merged and received signals.
After determining the measurement object combination, the terminal device may perform combining reception on the reference signals of the measurement object combination by using a preset reception configuration parameter. Alternatively, the terminal device may determine, for each measurement object combination, a reception configuration parameter matching the measurement object combination, and combine the reference signals of the reception measurement object combination with the reception configuration parameter to obtain a combined received signal.
The receiving configuration parameters may include a combined receiving time domain range and a combined receiving frequency domain range that may be adopted when receiving the reference signal of the measurement object combination. The terminal device may determine the merged reception time domain range according to the time domain reception range of each measurement object in the measurement object combination, and determine the merged reception frequency domain range according to the frequency domain reception range of each measurement object.
It should be noted that, in order to enable the reference signals of the measurement objects in the measurement object combination to be completely received, the merged receiving time domain range needs to cover the receiving time domain range of each measurement object in the measurement object combination, and the merged receiving frequency domain range needs to cover the receiving frequency domain range of each measurement object in the measurement object combination.
In the above-mentioned receiving configuration parameters, the combined receiving time domain range may be identified by parameters such as the self-frame number, the symbol identifier, and the time domain length. The combined receiving frequency domain range can be identified by parameters such as frequency points, subcarrier bandwidths, bandwidths and the like adopted in the combining and receiving.
On the basis of determining the receiving configuration parameters, the terminal device may perform parameter configuration on the receiving circuit by using the parameters, and combine and receive the reference signals of the measurement object combination to obtain a combined received signal. The receiving circuit may include a Radio Frequency (RF), an Automatic Gain Control (AGC), a Digital Front End (DFE), and other hardware circuits.
The combined received signal may be a combination of reference signals of different measurement targets. For example, the combined received signal may include an SSB signal with f1 frequency point and an SSB signal with f2 frequency point; or alternatively. The combined received signal can be an SSB signal of a frequency point f1 and a CSI-RS signal of a frequency point f 2; or, the combined received signal may include a CSI-RS signal of a frequency point f1 and a CSI-RS signal of a frequency point f 2.
When the terminal device combines and receives the reference signals of a plurality of measurement objects, the parameters of the hardware such as RF, AGC, DFE and the like can be configured 1 slot ahead.
And S106, measuring the combined and received signals to obtain cell measurement results corresponding to the measurement objects in the measurement object combination.
On the basis of obtaining the combined received signal, the terminal device may measure the combined received signal to obtain cell measurement results corresponding to each measurement object. The terminal device may extract reference signals corresponding to the respective measurement objects from the combined received signals, and then measure the reference signals.
The cell measurement result may include a cell measurement result of a cell that has been detected by the terminal device, or a cell measurement result of a new cell that is detected by the terminal device based on the reference signal. The cell measurement result may be at least one of RSRP, RSRQ, and SNR. After obtaining the cell measurement result, the terminal device may report the cell measurement result to the network side.
Among a plurality of measurement objects to be measured, for other measurement objects than the measurement result combination identified, the terminal device may receive reference signals of the other measurement objects, respectively, to obtain cell measurement results. Continuing with the example of the measurement object in fig. 3, the terminal device may recognize f1 and f4 as a measurement object combination, and f3 and f5 as another measurement object combination. Based on this, the terminal device can perform 4 rf parameter configurations for signal reception for the measurement object to be measured, and each of the configurations includes: the reference signals for f1 and f4 are combined, the reference signals for f3 and f5 are combined, the reference signal for f0 is received, and the reference signal for f2 is received.
In the cell measurement method, the terminal equipment identifies the combination of the measurement objects which meet the merging receiving condition in a plurality of measurement objects to be measured; then, determining a receiving configuration parameter matched with the measurement object combination, and combining the reference signal of the measurement object combination by adopting the receiving configuration parameter to obtain a combined received signal; finally, measuring the combined and received signals to obtain cell measurement results corresponding to each measurement object in the measurement object combination; the measurement object combination comprises at least two measurement objects, and the center frequency points and/or the subcarrier intervals of different measurement objects are different. The terminal equipment identifies the measurement object combination meeting the combined receiving condition and determines the receiving configuration parameters matched with the measurement object combination, so that the reference signals of at least two measurement objects are combined and received, the signal receiving times of a plurality of measurement objects to be measured are reduced, and the power consumption of the terminal equipment can be reduced. For the terminal equipment in the connection state, the utilization efficiency of the measurement interval can be improved, the requirement on the measurement interval is reduced, the mobility performance of the terminal equipment is improved, and the user experience is improved; for the terminal equipment in an idle state, the number of times of awakening the terminal equipment can be reduced by reducing the number of signal receiving times, and the power consumption of the terminal equipment is reduced; further, for a terminal device with a strong capability, the signal receiving capability of the terminal device can be fully utilized to simultaneously receive the reference signals of a plurality of measurement objects, and the resource utilization rate of the terminal device is improved.
Fig. 4 is a schematic flowchart of a cell measurement method in an embodiment, where the embodiment relates to a manner in which a terminal device determines a candidate measurement object combination, and on the basis of the embodiment, as shown in fig. 4, the step S102 includes:
s202, determining the frequency band of each measurement object according to the central frequency point of each measurement object.
For the measurement objects to be measured, the terminal device may determine the frequency band to which each measurement object belongs first. The frequency band may be a frequency band determined by the terminal device by frequency division, or may be a communication frequency band set in a protocol, which is not limited herein.
For example, the frequency bands may include an FR1 frequency band and an FR2 frequency band, the FR1 frequency band may range from 450MHz to 6GHz, and the FR2 frequency band may range from 24.25GHz to 52.6 GHz. The frequency bands can also be ban1, band2 and band3, wherein the range of band 1 can be 0-3000MHz, the range of band2 can be 3000-24250MHz, and the range of band3 can be 24250-100000 MHz.
S204, aiming at any two measuring objects in the same frequency band, if the frequency difference value is smaller than a preset threshold value, determining the any two measuring objects as candidate measuring object combinations; and the preset thresholds corresponding to different frequency bands are different.
After determining the frequency band to which the measurement object belongs, the terminal device may identify the measurement object combination in the same frequency band. The terminal device can randomly combine the measurement objects in the same frequency band, and determine the combination of the two measurement objects with the frequency difference value smaller than the preset threshold value as a candidate measurement object combination.
And the preset thresholds corresponding to different frequency bands are different. Taking the frequency bands including band 1, band2, and band3 as examples, the preset threshold corresponding to each frequency band may be as follows:
frequency of Preset threshold value
0-3000MHz N×1250kHz、N×1350kHz、N×1450kHz
3000-24250MHz N×1.44MHz
24250-100000MHz N×17.28MHz
Wherein N may be a non-negative integer, and may be 3 or 5.
Continuing with the example of the measurement object in fig. 3, when determining whether there is a measurement object combination including the measurement object f0, the terminal device only needs to compare f0 and f2, but does not need to compare f0 with f1, f3, f4 and f5, so as to determine candidate measurement object combinations, and reduce the number of times of measurement object combination identification.
According to the cell measurement method, the terminal equipment identifies the measurement object combination in the same frequency band, so that the identification range of the measurement object combination can be reduced, the identification times of the measurement object combination are reduced, and the identification efficiency of the measurement object combination is improved; furthermore, the terminal device sets a corresponding preset threshold value for each frequency band, so that the preset threshold value can more accurately judge whether two measurement objects in the frequency band can be received in a combined manner, and the identification reliability of the candidate measurement object combination is improved.
Fig. 5 is a schematic flowchart of a cell measurement method in an embodiment, where the embodiment relates to a manner for a terminal device to determine a receiving configuration parameter, and on the basis of the embodiment, a measurement object combination includes a first measurement object and a second measurement object, as shown in fig. 5, where S104 includes:
s302, determining a combined receiving frequency domain range according to a first center frequency point and a first subcarrier interval of a first measurement object and a second center frequency point and a second subcarrier interval of a second measurement object.
For the identified measurement object combination, the terminal device may obtain a first center frequency point and a first subcarrier interval of a first measurement object, and a second center frequency point and a second subcarrier interval of a second measurement object in the measurement object combination.
Further, the terminal device may determine a first frequency domain receiving range corresponding to the first measurement object according to the first center frequency point and the first subcarrier interval, and then determine a second frequency domain receiving range corresponding to the second measurement object according to the second center frequency point and the second subcarrier interval. In one implementation, the terminal device may determine a union of the first frequency domain reception range and the second frequency domain reception range as a combined reception frequency domain range. In another implementation manner, the terminal device may determine a frequency domain bandwidth capable of covering the first frequency domain receiving range and the second frequency domain receiving range to obtain a combined receiving frequency domain range, where one of the central frequency points is the combined receiving central frequency point of the combined receiving frequency domain range; the determination method of the combined received frequency domain range is not limited herein.
S304, determining a union of the first time domain receiving range of the first measuring object and the second time domain receiving range of the second measuring object as a combined receiving time domain range.
Further, the terminal device may obtain a first time domain receiving range of a first measurement object and a second time domain receiving range of a second measurement object configured on the network side, for example, obtain SMTCs corresponding to measurement object combinations f1 and f4 in fig. 3, respectively. The terminal device may determine a union of the first time domain reception range and the second time domain reception range as a combined reception time domain range.
S306, determining the combined receiving frequency domain range and the combined receiving time domain range as the receiving configuration parameters matched with the combination of the measuring objects.
Based on the combined received frequency domain range and the combined received time domain range, the terminal device may obtain the reception configuration parameter matched with the measurement object combination. After the configuration is performed by using the receiving configuration parameters, the reference signals of the measurement objects in the measurement object combination can be received.
In the cell measurement method, the terminal device determines the combined receiving frequency domain range and determines the union of the time domain receiving ranges as the combined receiving time domain range of the measurement objects, so that the obtained receiving configuration parameters can be used for completely receiving the reference signals of each measurement object; in addition, by determining the union of the time domain receiving ranges as the combined receiving time domain range, the receiving time in the combining and receiving process can be reduced, and the power consumption of the device can be reduced.
When determining the combined received frequency domain range, the terminal device may first determine whether the first central frequency point and the second central frequency point are the same, and determine the combined received frequency domain range by using a method corresponding to the determination result. In the following embodiment, the determining process of combining the receiving frequency domain ranges is respectively described for two cases, where the first central frequency point is the same as the second central frequency point, and the first central frequency point is different from the second central frequency point.
Fig. 6 is a schematic flowchart of a cell measurement method in an embodiment, where the embodiment relates to a manner in which a terminal device determines a combined received frequency domain range when a first center frequency point is the same as a second center frequency point, and on the basis of the embodiment, as shown in fig. 6, the S302 includes:
s402, determining the first central frequency point as a first target central frequency point.
In the measurement object combination, the first center frequency point is the same as the second center frequency point. The terminal device may determine the center frequency point of any measurement object as a first target center frequency point of the combined reception frequency domain range, that is, the terminal device may determine the first center frequency point as the first target center frequency point.
And S404, determining the maximum value of the first subcarrier interval and the second subcarrier interval as a first target subcarrier interval.
The terminal device may compare the first subcarrier spacing and the second subcarrier spacing to determine which of the measurement objects has a larger subcarrier spacing. When the subcarrier spacing is large, the frequency domain bandwidth corresponding to the measurement object is also large. Since the center frequency points are the same, the terminal device may directly determine the maximum value of the first subcarrier interval and the second subcarrier interval as the first target subcarrier interval.
S406, determining a combined receiving frequency domain range according to the first target central frequency point and the first target subcarrier interval.
Further, the terminal device may determine the combined receiving frequency domain range according to the first target central frequency point and the first target subcarrier interval. The combined reception frequency range is the same as the frequency reception range of the measurement object corresponding to the first target subcarrier spacing.
As shown in fig. 3 for the measurement objects f1 and f4, the first target center frequency point may be f 1. Since the subcarrier spacing of the measurement object f4 is greater than that of the measurement object f1, the frequency reception range of the measurement object f4 can be determined as the combined reception frequency range.
According to the cell measuring method, the terminal equipment can determine the frequency receiving range of the measuring range with larger subcarriers as the combined receiving frequency range matched with the measuring object combination by comparing the subcarrier intervals under the condition that the first central frequency point and the second central frequency point are the same, so that the determining process of the combined receiving frequency range under the condition is simplified.
Fig. 7 is a schematic flowchart of a cell measurement method in an embodiment, where the embodiment relates to a manner in which a terminal device measures a combined received signal when a first center frequency point and a second center frequency point are the same, and on the basis of the embodiment, as shown in fig. 7, S106 includes:
s502, extracting a first reference signal corresponding to the first measurement object from the combined received signal according to the first subcarrier interval and the first time domain receiving range.
After acquiring the combined received signal, the terminal device may recover the first reference signal of the first measurement object and the second reference signal of the second measurement object in the combined received signal.
Assuming that the first subcarrier spacing is greater than the second subcarrier spacing, the combined reception frequency domain range is the frequency domain reception range corresponding to the first measurement object. The terminal device may perform signal extraction on the combined and received signal according to the first time domain receiving range to obtain a first reference signal.
And S504, extracting a second reference signal corresponding to a second measurement object from the combined received signal according to the second subcarrier interval and the second time domain receiving range.
For the second measurement object, the terminal device may extract, according to the second subcarrier interval and the second time domain reception range, the second reference signal corresponding to the second measurement object from the combined received signal.
Under the condition that the first subcarrier interval is larger than the second subcarrier interval, the terminal equipment can determine the frequency domain bandwidth of a second measurement object according to the second subcarrier interval; and then sampling the combined and received signal according to the frequency domain bandwidth, and extracting the sampled signal according to a second time domain receiving range to obtain a second reference signal.
S506, the first reference signal and the second reference signal are measured respectively to obtain a cell measurement result of the first measurement object and a cell measurement result of the second measurement object.
On the basis of the above steps, the terminal device may measure the first reference signal to obtain a cell measurement result corresponding to the first measurement object. The terminal device may measure the second reference signal to obtain a cell measurement result corresponding to the second measurement object.
Continuing with the example of the measurement object in fig. 3, the terminal device may obtain the combined received signals of the measurement object f1 and the measurement object f4, and then perform signal extraction in the combined received signals. Since the subcarrier interval corresponding to f1 is smaller than the subcarrier interval corresponding to f4, the terminal device determines the combined received signal as a first reference signal of a measurement object f 4; then, according to the frequency domain bandwidth BW1 of the measurement object f1, bandwidth sampling is performed in the combined signal, and a second reference signal of the measurement object f1 is obtained, as shown in fig. 8.
According to the cell measurement method, the terminal equipment recovers the reference signal of each measurement object from the combined received signal through bandwidth sampling, so that an accurate cell measurement result can be still obtained after the combination of the measurement objects is combined and received, the power consumption of the terminal equipment is reduced, and the resource utilization rate of the terminal equipment is improved.
Fig. 9 is a schematic flowchart of a cell measurement method in an embodiment, where the embodiment relates to a manner in which a terminal device determines a combined received frequency domain range when a first center frequency point and a second center frequency point are different, and on the basis of the embodiment, as shown in fig. 9, the S302 includes:
s602, determining a first frequency domain range of a first measurement object according to the first central frequency point and the first subcarrier interval, and determining a second frequency domain range of a second measurement object according to the second central frequency point and the second subcarrier interval.
S604, determining the maximum frequency point and the minimum frequency point covered by the first frequency domain range and the second frequency domain range.
S606, determining the average value of the maximum frequency point and the minimum frequency point as a second target central frequency point, and determining the difference value between the maximum frequency point and the minimum frequency point as a target frequency domain bandwidth.
And S608, determining a combined receiving frequency domain range according to the second target central frequency point and the target frequency domain bandwidth. Continuing with the example of the measurement object in fig. 3, the frequency difference between the measurement object 3 and the measurement object 5 is less than the preset threshold. For a measurement object combination formed by the measurement object f3 and the measurement object f5, the terminal device may determine a combined reception frequency domain range that matches the measurement object combination. The terminal device may obtain the frequency domain range BW3 of the measurement object f3, and the frequency domain range BW5 of the measurement object f 3.
As shown in fig. 10, the second target central frequency point of the measurement object combination may be represented as follows:
Figure BDA0003582494550000131
the target frequency domain bandwidth of the combined receive frequency domain range may be as follows:
Figure BDA0003582494550000132
according to the cell measurement method, the combined receiving frequency domain range is determined by the terminal equipment under the condition that the central frequency points of the first measurement object and the second measurement object are different, so that the bandwidth of the combined receiving frequency domain range can just receive the reference signals of the first measurement object and the second measurement object completely, the terminal equipment is prevented from receiving signals by adopting too large bandwidth, and the power consumption of the equipment is reduced.
Fig. 11 is a schematic flowchart of a cell measurement method in an embodiment, where the embodiment relates to a manner in which a terminal device measures a combined received signal when a first center frequency point and a second center frequency point are different, and on the basis of the embodiment, as shown in fig. 11, the S106 includes:
s702, frequency shift processing and sampling processing are carried out on the combined and received signals, and a third reference signal of the first measuring object and a fourth reference signal of the second measuring object are obtained.
Since the target center frequency point of the combined receiving frequency domain range is different from the center frequency points of the first measurement object and the second measurement object, in order to extract the reference signal (third reference signal) of the first measurement object and the reference signal (fourth reference signal) of the second measurement object, frequency shift processing and sampling processing need to be performed on the combined receiving signal.
The frequency shift processing is to shift the frequency point of the combined received signal to the central frequency point of the first measurement object and the central frequency point of the second measurement object; the sampling process is performed to obtain a reference signal corresponding to the frequency bandwidth of the first measurement target and the second measurement target. The terminal equipment needs to perform frequency shift processing and sampling processing on the received signal once to obtain a third reference signal; and performing another independent frequency shift processing and sampling processing on the combined and received signal to obtain a third reference signal.
The terminal equipment can perform first frequency shift processing on the received signal according to the difference value between the second target central frequency point and the first central frequency point, and sample the processed signal according to the frequency domain bandwidth of the first measurement object to obtain a first received signal; and performing signal extraction on the first receiving signal according to the first time domain receiving range to obtain a third reference signal. The terminal equipment can perform second frequency shift processing on the received signal according to the difference value between the second target central frequency point and the second central frequency point, and sample the processed signal according to the frequency domain bandwidth of a second measurement object to obtain a second received signal; and performing signal extraction on the second receiving signal according to a second time domain receiving range to obtain a fourth reference signal.
The terminal equipment can determine a frequency shift value of the first frequency shift processing according to the difference value of the second target central frequency point and the first central frequency point; and determining a down-sampling coefficient of the first frequency shift processing according to the ratio of the frequency domain bandwidth of the first measurement object to the target frequency domain bandwidth. The terminal equipment can determine a frequency shift value of the second frequency shift processing according to the difference value of the second target central frequency point and the second central frequency point; and determining a down-sampling coefficient of the second frequency shift processing according to the ratio of the frequency domain bandwidth of the second measurement object to the target frequency domain bandwidth.
Continuing with the measurement object in fig. 3 as an example, the process of the frequency shift processing can be seen in fig. 12. The deviation between the target receiving frequency points f and f3, f5 is Δ f2And Δ f1When performing frequency shift processing for f3, it is necessary to shift the combined received signal downward by Δ f2When performing frequency shift processing for f5, it is necessary to shift the combined received signal upward by Δ f1。
And S704, respectively measuring the third reference signal and the fourth reference signal to obtain a cell measurement result of the first measurement object and a cell measurement result of the second measurement object.
On the basis of obtaining the third reference signal and the fourth reference signal, the terminal device may measure the third reference signal to obtain a cell measurement result of the first measurement object; the terminal device may measure the fourth reference signal to obtain a cell measurement result of the second measurement object.
The terminal device may perform frequency shift processing on the received signal through a frequency shifter (frequency shifter), and perform sampling processing on the signal after the frequency shift processing through a down-sampling Decimator (demultiplexer), which may include the following two implementation manners:
in one implementation, the terminal device may place a set of frequency shifters and downsample decimators on the output path of the DFE, as shown in fig. 13. After the combined received signal output by the DFE passes through the frequency shifter and the down-sampling extractor, a third reference signal and a fourth reference signal corresponding to 2 central frequency points and frequency domain bandwidths are output, so that the terminal equipment can measure and process the third reference signal and the fourth reference signal respectively. The terminal device may store the third reference signal and the fourth reference signal in a Buffer, respectively. When the terminal device needs to measure the third reference signal, the third reference signal in the buffer can be read to the Measurement detection module Measurement, and a cell Measurement result of the first Measurement object is obtained; when the terminal device needs to measure the fourth reference signal, the fourth reference signal in the buffer may be read to the Measurement detection module Measurement, and a cell Measurement result of the second Measurement object is obtained.
In another implementation, as shown in fig. 14, the terminal device may place a set of frequency shifters and downsample decimators on the output path of the DFE and Buffer the combined received signal into a Buffer before the frequency shifters. When the terminal device needs to measure the third reference signal of the first Measurement object, the combined received signal may be read from the Buffer, then frequency shift processing and sampling processing are performed according to the central frequency point and the frequency domain bandwidth of the first Measurement object to obtain the third reference signal, and the Measurement detection module measures the third reference signal to obtain the cell Measurement result. When the terminal device needs to measure the fourth reference signal of the second measurement object, the combined received signal may be read from the Buffer, and then frequency shift processing and sampling processing are performed according to the central frequency point and the frequency domain bandwidth of the second measurement object to obtain the fourth reference signal, and the measurement detection module is used to measure the fourth reference signal to obtain the cell measurement result.
When the terminal equipment carries out frequency shift processing and sampling processing through the frequency shifter and the down-sampling extractor, the corresponding frequency shift value and the corresponding down-sampling coefficient can be set by lifting one slot.
According to the cell measurement method, the terminal equipment recovers the reference signals of all the measurement objects from the combined received signals through frequency shift processing and sampling processing, so that accurate cell measurement results can still be obtained after the combination of the measurement objects with different central frequency points is combined for receiving, the power consumption of the terminal equipment is reduced, and the resource utilization rate of the terminal equipment is improved.
In one embodiment, a cell measurement method is provided, as shown in fig. 15, including:
s801, determining a frequency band of each measuring object in a plurality of measuring objects to be measured according to a central frequency point of each measuring object;
s802, determining whether a frequency difference value is smaller than a preset threshold value or not for any two measurement objects in the same frequency band; if yes, go to S803;
s803, determining any two measurement objects as candidate measurement object combinations;
s804, determining whether the time domain receiving ranges of the two measuring objects in the candidate measuring object combination have an overlapping area, if so, executing S805;
and S805, determining the candidate measuring object combination as the measuring object combination.
S806, determining whether the first central frequency point is the same as the second central frequency point, if so, executing S807; if not, go to S814;
s807, determining the first central frequency point as a first target central frequency point;
s808, determining the maximum value of the first subcarrier interval and the second subcarrier interval as a first target subcarrier interval;
s809, determining a combined receiving frequency domain range according to the first target central frequency point and the first target subcarrier interval;
s810, performing signal extraction on the combined and received signal according to a first time domain receiving range to obtain a first reference signal;
s811, determining the frequency domain bandwidth of a second measurement object according to the second subcarrier interval;
s812, sampling the combined and received signal according to the frequency domain bandwidth, and performing signal extraction on the sampled signal according to a second time domain receiving range to obtain a second reference signal;
s813 measuring the first reference signal and the second reference signal respectively to obtain a cell measurement result of the first measurement object and a cell measurement result of the second measurement object;
s814, determining a first frequency domain range of a first measurement object according to the first center frequency point and the first subcarrier interval, and determining a second frequency domain range of a second measurement object according to the second center frequency point and the second subcarrier interval;
s815, determining the maximum frequency point and the minimum frequency point covered by the first frequency domain range and the second frequency domain range;
s816, determining the average value of the maximum frequency point and the minimum frequency point as a second target central frequency point, and determining the difference value between the maximum frequency point and the minimum frequency point as a target frequency domain bandwidth;
s817, determining a combined receiving frequency domain range according to the second target center frequency point and the target frequency domain bandwidth;
s818, performing frequency shift processing and sampling processing on the combined and received signal to obtain a third reference signal of the first measurement object and a fourth reference signal of the second measurement object;
s819, separately measure the third reference signal and the fourth reference signal to obtain a cell measurement result of the first measurement object and a cell measurement result of the second measurement object.
The above cell measurement method, the implementation principle and the technical effect thereof are referred to the above embodiments, and are not described herein again.
It should be understood that, although the steps in the above-described flowcharts are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a part of the steps in the above flowcharts may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of performing the sub-steps or the stages is not necessarily performed in sequence, but may be performed alternately or alternately with other steps or at least a part of the sub-steps or the stages of other steps.
In one embodiment, as shown in fig. 16, there is provided a cell measurement apparatus including:
an identification module 10, configured to identify a combination of measurement objects that satisfies a combining reception condition among a plurality of measurement objects to be measured; wherein, the measuring object combination comprises at least two measuring objects;
a receiving module 20, configured to perform combining and receiving on the reference signals corresponding to the measurement object combinations to obtain combined received signals;
the measurement module 30 is configured to measure the received signal to obtain a cell measurement result corresponding to each measurement object in the measurement object combination.
In one embodiment, on the basis of the above embodiment, the combining reception condition includes: the frequency difference value between the central frequency points of the two measurement objects in the measurement object combination is smaller than a preset threshold value, and the time domain receiving ranges of the two measurement objects in the measurement object combination are overlapped.
In an embodiment, on the basis of the above embodiment, the identification module 10 is specifically configured to: determining two measuring objects with the frequency difference value smaller than a preset threshold value as a candidate measuring object combination; and if the time domain receiving ranges of the two measurement objects in the candidate measurement object combination have an overlapping region, determining the candidate measurement object combination as the measurement object combination.
In an embodiment, on the basis of the above embodiment, the identification module 10 is specifically configured to: determining the frequency band of each measuring object according to the central frequency point of each measuring object; aiming at any two measurement objects in the same frequency band, if the frequency difference value is smaller than a preset threshold value, determining any two measurement objects as candidate measurement object combinations; and the preset thresholds corresponding to different frequency bands are different.
In an embodiment, on the basis of the above embodiment, the receiving module 20 is specifically configured to: and determining a receiving configuration parameter matched with the measurement object combination, and combining and receiving the reference signal of the measurement object combination by adopting the receiving configuration parameter to obtain the combined received signal.
In an embodiment, on the basis of the above-mentioned embodiment, as shown in fig. 17, the measurement object combination includes a first measurement object and a second measurement object, and the receiving module 20 includes:
a first determining unit 201, configured to determine a combined receiving frequency domain range according to a first center frequency point and a first subcarrier interval of a first measurement object, and a second center frequency point and a second subcarrier interval of a second measurement object;
a second determining unit 202, configured to determine a union of a first time domain receiving range of the first measurement object and a second time domain receiving range of the second measurement object as a combined receiving time domain range;
a third determining unit 203, configured to determine the combined received frequency domain range and the combined received time domain range as the receiving configuration parameter matched with the measurement object combination.
In an embodiment, on the basis of the above embodiment, in the case that the first central frequency point is the same as the second central frequency point, the first determining unit 201 is specifically configured to: determining the first central frequency point as a first target central frequency point; determining a maximum value of the first subcarrier spacing and the second subcarrier spacing as a first target subcarrier spacing; and determining a combined receiving frequency domain range according to the first target central frequency point and the first target subcarrier interval.
In an embodiment, on the basis of the above embodiment, the measurement module 30 is specifically configured to: extracting a first reference signal corresponding to a first measurement object from the combined received signal according to the first subcarrier interval and the first time domain receiving range; extracting a second reference signal corresponding to a second measurement object from the combined received signal according to the second subcarrier interval and the second time domain receiving range; and respectively measuring the first reference signal and the second reference signal to obtain a cell measurement result of the first measurement object and a cell measurement result of the second measurement object.
In an embodiment, on the basis of the foregoing embodiment, the first subcarrier spacing is greater than the second subcarrier spacing, and the measurement module 30 is specifically configured to: performing signal extraction on the combined and received signal according to a first time domain receiving range to obtain a first reference signal; determining the frequency domain bandwidth of a second measurement object according to the second subcarrier interval; and sampling the received signals according to the frequency domain bandwidth, and extracting the sampled signals according to a second time domain receiving range to obtain a second reference signal.
In an embodiment, on the basis of the foregoing embodiment, in a case that the first central frequency point is different from the second central frequency point, the first determining unit 201 is specifically configured to: determining a first frequency domain range of a first measurement object according to the first central frequency point and the first subcarrier interval, and determining a second frequency domain range of a second measurement object according to the second central frequency point and the second subcarrier interval; determining the maximum frequency point and the minimum frequency point covered by the first frequency domain range and the second frequency domain range; determining the average value of the maximum frequency point and the minimum frequency point as a second target central frequency point, and determining the difference value between the maximum frequency point and the minimum frequency point as a target frequency domain bandwidth; and determining a combined receiving frequency domain range according to the second target central frequency point and the target frequency domain bandwidth.
In an embodiment, on the basis of the above embodiment, the measurement module 30 is specifically configured to: performing frequency shift processing and sampling processing on the combined and received signal to obtain a third reference signal of the first measurement object and a fourth reference signal of the second measurement object; and respectively measuring the third reference signal and the fourth reference signal to obtain a cell measurement result of the first measurement object and a cell measurement result of the second measurement object.
In an embodiment, on the basis of the above embodiment, the measurement module 30 is specifically configured to: according to the difference value between the second target central frequency point and the first central frequency point, performing first frequency shift processing on the combined received signal, and sampling the processed signal according to the frequency domain bandwidth of a first measurement object to obtain a first received signal; performing signal extraction on the first receiving signal according to a first time domain receiving range to obtain a third reference signal; according to the difference value between the second target central frequency point and the second central frequency point, performing second frequency shift processing on the combined received signal, and sampling the processed signal according to the frequency domain bandwidth of a second measurement object to obtain a second received signal; and performing signal extraction on the second receiving signal according to a second time domain receiving range to obtain a fourth reference signal.
The implementation principle and technical effect of the cell measurement device are referred to the method embodiments, and are not described herein again.
The division of the modules in the cell measurement apparatus is merely used for illustration, and in other embodiments, the cell measurement apparatus may be divided into different modules as needed to complete all or part of the functions of the cell measurement apparatus.
For the specific definition of the cell measurement apparatus, reference may be made to the definition of the cell measurement method above, and details are not described here. The modules in the cell measurement apparatus may be implemented in whole or in part by software, hardware, and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
Fig. 18 is a schematic diagram of the internal structure of the terminal device in one embodiment. The terminal device may be any terminal device such as a mobile phone, a tablet computer, a notebook computer, a desktop computer, a PDA (Personal Digital Assistant), a POS (Point of Sales), a vehicle-mounted computer, and a wearable device. The terminal device includes a processor and a memory connected by a system bus. The processor may include one or more processing units, among others. The processor may be a CPU (Central Processing Unit), a DSP (Digital Signal processor), or the like. The memory may include a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The computer program can be executed by a processor for implementing a cell measurement method provided in the following embodiments. The internal memory provides a cached execution environment for the operating system computer programs in the non-volatile storage medium.
The implementation of each module in the cell measurement apparatus provided in the embodiments of the present application may be in the form of a computer program. The computer program may be run on an electronic device. The program modules formed by the computer program may be stored on the memory of the terminal device. Which when executed by a processor, performs the steps of the method described in the embodiments of the present application.
The embodiment of the application also provides a computer readable storage medium. One or more non-transitory computer-readable storage media containing computer-executable instructions that, when executed by one or more processors, cause the processors to perform the steps of the cell measurement method.
Embodiments of the present application also provide a computer program product containing instructions that, when run on a computer, cause the computer to perform a cell measurement method.
Any reference to memory, storage, database, or other medium used herein may include non-volatile and/or volatile memory. The nonvolatile Memory may include a ROM (Read-Only Memory), a PROM (Programmable Read-Only Memory), an EPROM (Erasable Programmable Read-Only Memory), an EEPROM (Electrically Erasable Programmable Read-Only Memory), or a flash Memory. Volatile Memory can include RAM (Random Access Memory), which acts as external cache Memory. By way of illustration and not limitation, RAM is available in a variety of forms, such as SRAM (Static Random Access Memory), DRAM (Dynamic Random Access Memory), SDRAM (Synchronous Dynamic Random Access Memory), Double Data Rate DDR SDRAM (Double Data Rate Synchronous Random Access Memory), ESDRAM (Enhanced Synchronous Dynamic Random Access Memory), SLDRAM (Synchronous Link Dynamic Random Access Memory), RDRAM (Random Dynamic Random Access Memory), and DRAM (Random Dynamic Random Access Memory).
The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (16)

1. A method of cell measurement, the method comprising:
identifying a combination of measurement objects satisfying a combining reception condition among a plurality of measurement objects to be measured; wherein, the measuring object combination comprises at least two measuring objects;
combining and receiving the reference signals corresponding to the measurement object combination to obtain combined and received signals;
and measuring the combined received signals to obtain cell measurement results corresponding to the measurement objects in the measurement object combination.
2. The method of claim 1, wherein the combining reception condition comprises: and the frequency difference value between the central frequency points of the two measurement objects in the measurement object combination is smaller than a preset threshold value, and the time domain receiving ranges of the two measurement objects in the measurement object combination are overlapped.
3. The method of claim 2, wherein the identifying the combination of measurement objects that satisfy the merged reception condition comprises:
determining the two measuring objects with the frequency difference value smaller than the preset threshold value as candidate measuring object combinations;
and if the time domain receiving ranges of the two measurement objects in the candidate measurement object combination have an overlapping region, determining the candidate measurement object combination as the measurement object combination.
4. The method according to claim 3, wherein the determining two measurement objects with the frequency difference value smaller than the preset threshold value as a candidate measurement object combination comprises:
determining the frequency band of each measuring object according to the central frequency point of each measuring object;
aiming at any two measurement objects in the same frequency band, if the frequency difference value is smaller than the preset threshold value, determining the any two measurement objects as candidate measurement object combinations; and the preset thresholds corresponding to different frequency bands are different.
5. The method according to any one of claims 1 to 4, wherein the combining and receiving the reference signals corresponding to the measurement object combination to obtain a combined received signal comprises:
and determining a receiving configuration parameter matched with the measurement object combination, and combining and receiving the reference signal of the measurement object combination by adopting the receiving configuration parameter to obtain a combined received signal.
6. The method of claim 5, wherein the measurement object combination comprises a first measurement object and a second measurement object, and wherein determining the reception configuration parameters matching the measurement object combination comprises:
determining a combined receiving frequency domain range according to the first center frequency point and the first subcarrier interval of the first measuring object and the second center frequency point and the second subcarrier interval of the second measuring object;
determining a union of a first time domain receiving range of the first measuring object and a second time domain receiving range of the second measuring object as a combined receiving time domain range;
and determining the combined receiving frequency domain range and the combined receiving time domain range as the receiving configuration parameters matched with the combination of the measuring objects.
7. The method according to claim 6, wherein in a case that a first central frequency point is the same as a second central frequency point, said determining a combined receiving frequency domain range according to a first central frequency point and a first subcarrier spacing of the first measurement object and a second central frequency point and a second subcarrier spacing of the second measurement object comprises:
determining the first central frequency point as a first target central frequency point;
determining a maximum value of the first subcarrier spacing and the second subcarrier spacing as a first target subcarrier spacing;
and determining the combined receiving frequency domain range according to the first target central frequency point and the first target subcarrier interval.
8. The method of claim 7, wherein the measuring the combined received signal to obtain the cell measurement result corresponding to each measurement object in the measurement object combination comprises:
extracting a first reference signal corresponding to the first measurement object from the combined received signal according to a first subcarrier interval and a first time domain receiving range;
extracting a second reference signal corresponding to the second measurement object from the combined received signal according to a second subcarrier interval and a second time domain receiving range;
and respectively measuring the first reference signal and the second reference signal to obtain a cell measurement result of the first measurement object and a cell measurement result of the second measurement object.
9. The method of claim 8, wherein the first subcarrier spacing is greater than the second subcarrier spacing; the extracting, from the combined received signal according to the first subcarrier interval and the first time domain reception range, the first reference signal corresponding to the first measurement object includes:
performing signal extraction on the combined received signal according to the first time domain receiving range to obtain the first reference signal;
correspondingly, the extracting, according to the second subcarrier interval and the second time domain receiving range, the second reference signal corresponding to the second measurement object from the combined received signal includes:
determining the frequency domain bandwidth of the second measurement object according to the second subcarrier interval;
and sampling the combined received signal according to the frequency domain bandwidth, and performing signal extraction on the sampled signal according to the second time domain receiving range to obtain the second reference signal.
10. The method according to claim 6, wherein in a case that a first center frequency point is different from a second center frequency point, the determining a combined receiving frequency domain range according to a first center frequency point and a first subcarrier interval of the first measurement object and a second center frequency point and a second subcarrier interval of the second measurement object comprises:
determining a first frequency domain range of the first measurement object according to the first central frequency point and the first subcarrier interval, and determining a second frequency domain range of the second measurement object according to the second central frequency point and the second subcarrier interval;
determining the maximum frequency point and the minimum frequency point covered by the first frequency domain range and the second frequency domain range;
determining the average value of the maximum frequency point and the minimum frequency point as a second target central frequency point, and determining the difference value between the maximum frequency point and the minimum frequency point as a target frequency domain bandwidth;
and determining the combined receiving frequency domain range according to the second target central frequency point and the target frequency domain bandwidth.
11. The method of claim 10, wherein the measuring the combined received signal to obtain the cell measurement result corresponding to each measurement object in the measurement object combination comprises:
performing frequency shift processing and sampling processing on the combined received signal to obtain a third reference signal of the first measurement object and a fourth reference signal of the second measurement object;
and respectively measuring the third reference signal and the fourth reference signal to obtain a cell measurement result of the first measurement object and a cell measurement result of the second measurement object.
12. The method according to claim 11, wherein the frequency shift processing and sampling processing on the combined received signal to obtain a third reference signal of the first measurement object and a fourth reference signal of the second measurement object comprises:
according to the difference value between the second target central frequency point and the first central frequency point, performing first frequency shift processing on the combined received signal, and sampling the processed signal according to the frequency domain bandwidth of the first measurement object to obtain a first received signal; performing signal extraction on the first receiving signal according to the first time domain receiving range to obtain a third reference signal;
performing second frequency shift processing on the combined received signal according to the difference value between the second target central frequency point and the second central frequency point, and sampling the processed signal according to the frequency domain bandwidth of the second measurement object to obtain a second received signal; and performing signal extraction on the second receiving signal according to the second time domain receiving range to obtain the fourth reference signal.
13. An apparatus for cell measurement, the apparatus comprising:
the identification module is used for identifying a measurement object combination meeting the merging receiving condition in a plurality of measurement objects to be measured; wherein, the measuring object combination comprises at least two measuring objects;
a receiving module, configured to perform combining reception on the reference signals corresponding to the measurement object combinations to obtain combined received signals;
and the measurement module is used for measuring the combined received signals to obtain cell measurement results corresponding to the measurement objects in the measurement object combination.
14. A terminal device comprising a memory and a processor, the memory having stored thereon a computer program, wherein the computer program, when executed by the processor, causes the processor to perform the steps of the cell measurement method according to any of claims 1 to 12.
15. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the cell measurement method according to any one of claims 1 to 12.
16. A computer program product comprising a computer program, characterized in that the computer program, when being executed by a processor, carries out the steps of the cell measurement method according to any one of claims 1 to 12.
CN202210355568.XA 2022-04-06 2022-04-06 Cell measurement method, cell measurement device, terminal equipment and computer readable storage medium Pending CN114745744A (en)

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