CN112040522B - Channel measuring method, device, terminal and storage medium - Google Patents
Channel measuring method, device, terminal and storage medium Download PDFInfo
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- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
Abstract
The embodiment of the application provides a channel measuring method, a channel measuring device, a terminal and a storage medium. The method comprises the following steps: receiving measurement configuration information sent by network equipment; if the target activation bandwidth of the service cell corresponding to the terminal is not overlapped with the synchronous signal block bandwidth, adjusting the receiving frequency of the terminal before receiving the SSB, wherein the frequency interval of the adjusted receiving frequency comprises the synchronous signal block bandwidth; receiving the SSB of the serving cell and/or the neighbor cell through the adjusted receiving frequency; channel measurement is accomplished by the SSB of the serving cell and/or neighbor cell. According to the technical scheme provided by the embodiment of the application, when the bandwidth of the synchronous signal block is not overlapped with the bandwidth of the activation signal block, channel measurement is not required to be carried out through a pre-configured measurement gap, the measurement gap required by the channel measurement is reduced, the time for the terminal to measure all frequency points is greatly shortened, the measurement performance is improved, and the occurrence probability that the terminal is switched untimely and even dropped calls is reduced.
Description
Technical Field
The present invention relates to the field of wireless communications technologies, and in particular, to a channel measurement method, an apparatus, a terminal, and a storage medium.
Background
The quality of the wireless channel directly affects the communication performance, and in order to obtain accurate channel parameters, channel measurement needs to be performed on the wireless channel.
In the related art, a communication system defines a Synchronization signal Block Measurement configuration (SSB Measurement Timing Configurations, SMTC) and a Measurement Gap (MG), a terminal (User Equipment, terminal) receives a Synchronization Signal Block (SSB) of a serving cell in a configured Measurement period, performs common-frequency Measurement through the SSB of the serving cell, receives the SSB of an adjacent cell in the Measurement Gap, and performs inter-frequency Measurement through the SSB of the adjacent cell. When the activated bandwidth of the serving cell is not overlapped with the bandwidth for receiving the SSB of the serving cell, the terminal cannot receive the SSB of the serving cell, and at this time, the terminal receives the SSB of the serving cell in the measurement gap to complete the intra-frequency measurement.
Disclosure of Invention
The embodiment of the application provides a channel measuring method, a channel measuring device, a terminal and a storage medium. The technical scheme is as follows:
in one aspect, an embodiment of the present application provides a channel measurement method, where the method includes:
receiving measurement configuration information sent by network equipment, wherein the measurement configuration information comprises a synchronization signal block bandwidth, and the synchronization signal block bandwidth is used for indicating a frequency interval for receiving a synchronization signal block SSB of a serving cell and/or a neighbor cell;
if the target activation bandwidth of the serving cell corresponding to the terminal does not overlap with the synchronization signal block bandwidth, adjusting the receiving frequency of the terminal before receiving the SSB, wherein the adjusted frequency interval of the receiving frequency contains the synchronization signal block bandwidth, and the target activation bandwidth refers to the activation bandwidth used by the serving cell when the terminal receives the SSB;
receiving the SSB of the serving cell and/or the neighbor cell through the adjusted receiving frequency;
channel measurements are done by the SSBs of the serving cell and/or the neighbor cells.
In another aspect, an embodiment of the present application provides a channel measurement apparatus, where the apparatus includes:
an information receiving module, configured to receive measurement configuration information sent by a network device, where the measurement configuration information includes a synchronization signal block bandwidth, and the synchronization signal block bandwidth is used to indicate a frequency interval for receiving a synchronization signal block SSB of a serving cell and/or a neighboring cell;
a frequency adjustment module, configured to adjust a receiving frequency of a terminal before receiving the SSB if a target activation bandwidth of a serving cell corresponding to the terminal does not overlap with the synchronization signal block bandwidth, where a frequency interval of the adjusted receiving frequency includes the synchronization signal block bandwidth, and the target activation bandwidth is an activation bandwidth used by the serving cell when the terminal receives the SSB;
an SSB receiving module, configured to receive an SSB of the serving cell and/or the neighboring cell through the adjusted receiving frequency;
and the channel measurement module is used for completing channel measurement through the SSB of the serving cell and/or the neighbor cell.
In yet another aspect, an embodiment of the present application provides a user terminal, which includes a processor and a memory, where the memory stores a computer program, and the computer program is loaded and executed by the processor to implement the channel measurement method according to an aspect.
In yet another aspect, the present application provides a computer-readable storage medium, in which a computer program is stored, and the computer program is loaded and executed by a processor to implement the channel measurement method according to the one aspect.
In yet another aspect, embodiments of the present application provide a computer program product, the computer program product or computer program including computer instructions stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions to cause the computer device to perform the above-described channel measurement method.
The technical scheme provided by the embodiment of the application can bring the beneficial effects of at least comprising:
by the method, when the bandwidth of the synchronous signal block is not overlapped with the bandwidth of the activated signal block, the channel measurement is not required to be carried out through the measurement gap configured in advance, the measurement gap required by the channel measurement is reduced, the time for the terminal to measure all frequency points is greatly shortened, the measurement performance is improved, and the occurrence probability that the terminal is switched out in time and even dropped calls is reduced.
Drawings
FIG. 1 is a schematic illustration of an implementation environment provided by one embodiment of the present application;
fig. 2 is a flowchart of a channel measurement method according to an embodiment of the present application;
fig. 3 is a flowchart of a channel measurement method according to another embodiment of the present application;
FIG. 4 is a diagram illustrating adjusting a receiving frequency according to an embodiment of the present application;
FIG. 5 is a schematic diagram of adjusting a receiving frequency according to another embodiment of the present application;
fig. 6 is a schematic diagram of extracting SSBs of neighbor cells according to an embodiment of the present application;
fig. 7 is a diagram of receiving an SSB of a neighbor cell according to an embodiment of the present application;
fig. 8 is a flowchart of a channel measurement method according to another embodiment of the present application;
fig. 9 is a block diagram of a channel measuring device according to an embodiment of the present application;
fig. 10 is a block diagram of a terminal according to an embodiment of the present application.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, the following detailed description of the embodiments of the present application will be made with reference to the accompanying drawings.
The following is a description of the related terms related to the embodiments of the present application.
And (3) measurement of same frequency: and measuring the downlink frequency points of the adjacent cells which are the same as the downlink frequency points of the current service cell.
And (3) pilot frequency measurement: and measuring a downlink frequency point (same cell or adjacent cell) different from the downlink frequency point of the current service cell.
Synchronization signal block: the system comprises a main synchronous signal, an auxiliary synchronous signal, a physical broadcast channel, a third-class synchronous signal and the like, and is used for the terminal to complete the work of synchronization, system information acquisition, channel measurement and the like. In the embodiment of the present application, the synchronization signal block is used for the terminal to perform channel measurement.
Referring to fig. 1, a schematic diagram of an implementation environment provided by an embodiment of the present application is shown. The implementation environment comprises a terminal 11 and an access network device 12.
The terminal 11 may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to a wireless modem having a wireless communication function, and various forms of terminals (User Equipment, terminal), mobile Stations (MS), terminal devices (terminal device), and so on. For convenience of description, the above-mentioned devices are collectively referred to as a terminal.
Access network device 12 may be a Base Station (BS), which is a device deployed in a wireless access network to provide wireless communication functions for terminals. The base stations may include various forms of macro base stations, micro base stations, relay stations, access points, and the like. In systems using different radio access technologies, the names of devices with base station functions may be different, for example, in an LTE system, called evolved Node B (eNB or eNodeB), in a 3G communication system, called Node B (Node B), and so on. For convenience of description, in the embodiments of the present disclosure, the apparatus for providing a terminal with a wireless communication function is referred to as an access network device.
The access network equipment 12 and the terminal 11 communicate with each other via some air interface technology, for example, via cellular technology. For example, the access network device and the terminal 11 communicate via the Uu interface.
In this embodiment of the present application, after the terminal 11 establishes RRC connection with the access network device 12, the terminal 11 receives an RRC connection reconfiguration message, and then the terminal 11 performs channel measurement on a physical layer according to the RRC connection reconfiguration message. The parameters to be measured include: reference Signal Received Power (RSRP), received Signal Strength Indicator (RSSI), reference Signal Received Quality (RSRQ), reference Signal Time Difference (RSTD). Then, the terminal 11 determines to continue camping in the current serving cell or switching to the neighboring cell according to the channel measurement result.
In the related art, when the active bandwidth of the serving cell and the bandwidth of the SSB for receiving the serving cell are not overlapped, the SSB for receiving the serving cell needs to occupy a measurement gap, which results in a long time required by the terminal to complete measurement of all frequency points and poor measurement performance of the terminal.
Based on this, an embodiment of the present application provides a channel measurement method, where when an active bandwidth and a synchronization signal block bandwidth are not overlapped, a terminal adjusts a receiving frequency before receiving the synchronization signal block to receive the synchronization signal block, and completes channel measurement based on the synchronization signal block.
Referring to fig. 2, a flow chart of a channel measurement method according to an embodiment of the present application is shown. The method comprises the following steps:
After establishing RRC connection with the network side equipment, the terminal receives RRC information sent by the network side equipment, wherein the RRC information carries measurement configuration information.
The measurement configuration information includes a synchronization signal block bandwidth, which refers to a frequency interval in which the SSBs of the serving cell and/or the neighbor cell are received.
Optionally, the measurement configuration information defines a synchronization signal block measurement configuration, such as a synchronization signal block measurement period, a time position of the SSB to be received, and a time length. Wherein the measurement period is preconfigured by the communication system, such as 5ms, 20ms, 40ms, 80ms, and so on.
Optionally, the measurement configuration information further defines measurement gaps, such as time position, time length, period and other parameters of the measurement gaps. Wherein the period of the measurement gap is preconfigured by the communication system, such as 20ms, 40ms, 80ms, 260ms, and so on.
When the target activation bandwidth of the serving cell corresponding to the terminal and the synchronization signal block bandwidth are not overlapped, the terminal cannot receive the SSB of the serving cell and/or the neighbor cell. At this time, the terminal adjusts the receiving frequency, and the frequency interval of the adjusted receiving frequency contains the bandwidth of the synchronization signal block, so that the terminal can receive the SSB of the serving cell and/or the neighboring cell through the adjusted receiving frequency.
The target active bandwidth refers to an active bandwidth used by a serving cell when the terminal receives the SSB. Optionally, before step 202, the terminal determines the target activation bandwidth based on the time position and the time length of the synchronization signal block in the measurement configuration information.
And step 203, receiving the SSB of the serving cell and/or the neighbor cell through the adjusted receiving frequency.
Since the frequency interval of the adjusted receiving frequency includes the above-mentioned synchronization signal block bandwidth, the terminal can receive the SSB of the serving cell and/or the neighboring cell through the adjusted receiving frequency.
In step 204, channel measurement is completed by the SSB of the serving cell and/or the neighbor cell.
The channel measurement refers to mobility measurement in a connection state, and the channel measurement comprises co-frequency measurement and inter-frequency measurement. The same-frequency measurement refers to the measurement of the downlink frequency point of the adjacent cell which is the same as the downlink frequency point of the current service cell. The pilot frequency measurement refers to measuring a downlink frequency point (same cell or adjacent cell) different from a downlink frequency point of the current serving cell.
In the 5G communication system, the terminal performs channel measurement through the SSB. For example, the terminal performs intra-frequency measurement through the SSB of the serving cell. For another example, the terminal completes inter-frequency measurement through the SSB of the neighboring cell.
To sum up, according to the technical scheme provided by the embodiment of the present application, when the activated bandwidth and the synchronization signal block bandwidth are not overlapped, the terminal adjusts the receiving frequency before receiving the synchronization signal block to receive the synchronization signal block, and completes channel measurement based on the synchronization signal block.
Referring to fig. 3, a flow chart of a channel measurement method according to an embodiment of the present application is shown. The method comprises the following steps:
The measurement configuration information includes a synchronization signal block bandwidth indicating a frequency interval in which the synchronization signal block SSB of the serving cell and/or the neighbor cell is received.
Before adjusting the receiving frequency, the terminal determines the frequency interval of the adjusted receiving frequency based on the synchronous signal block bandwidth and the target activation bandwidth.
In one possible implementation, the target activation bandwidth of the serving cell is a frequency interval composed of a first lower value and a first upper value. The first upper limit value is greater than the first lower limit value. Illustratively, the target activation bandwidth of the serving cell is [ f ] l1 ，f h1 ]. The synchronization signal block bandwidth is a frequency interval composed of a second lower limit value and a second upper limit value. The second upper limit value is greater than the second lower limit value. Illustratively, the synchronization signal block has a bandwidth of f l2 ，f h2 ]. The embodiment of the present application does not limit the magnitude relationship between the first lower limit and the second lower limit, and the magnitude relationship between the first upper limit and the second upper limit.
In this possible implementation manner, the determining the frequency interval of the adjusted receiving frequency is specifically implemented as: determining a frequency interval consisting of the second lower limit value and the first upper limit value as a frequency interval of the adjusted receiving frequency; alternatively, a frequency interval composed of the first lower limit value and the second upper limit value is determined as the frequency interval of the adjusted reception frequency. When the first lower limit value is larger than the second upper limit value, the terminal determines a frequency interval formed by the second lower limit value and the first upper limit value as a frequency interval of the adjusted receiving frequency. When the second lower limit value is larger than the first upper limit value, the terminal determines a frequency interval formed by the first lower limit value and the second upper limit value as a frequency interval of the adjusted receiving frequency.
Referring collectively to fig. 4, a diagram illustrating adjusting a receive frequency is shown in accordance with one embodiment of the present application. Target activation bandwidth 41 is f l1 ，f h1 ]The block bandwidth of the synchronization signal is [ f ] l2 ，f h2 ]The two are not overlapped, before receiving the synchronous signal block 42, the terminal modulates the frequency interval of the receiving frequencyIs as a whole of l2 ，f h1 ]The terminal may now receive the synchronization signal block 42.
In another possible implementation manner, the determining the frequency interval of the adjusted receiving frequency is specifically implemented as: and determining the union of the target activation bandwidth of the service cell and the bandwidth of the synchronous signal block as the frequency interval of the adjusted receiving frequency.
Reference is now made in conjunction with fig. 5, which illustrates a schematic diagram of adjusting a reception frequency according to another embodiment of the present application. The target activation bandwidth 51 is f l1 ，f h1 ]The bandwidth of the synchronization signal block is [ f ] l2 ，f h2 ]Before receiving the synchronization signal block 52, the terminal adjusts the frequency interval of the reception frequency to [ f [ ] l1 ，f h1 ]∪[f l2 ，f h2 ]At this point the terminal may receive the synchronization signal block 52.
And step 304, receiving the SSB of the serving cell and/or the neighbor cell through the adjusted receiving frequency.
Optionally, after the terminal receives the SSB of the serving cell and/or the neighboring cell, the terminal restores the adjustment of the receiving frequency, and a frequency interval of the restored receiving frequency is also the target activated bandwidth. By the above manner, unnecessary reception can be avoided.
Optionally, the received SSB of the neighboring cell is time domain signal data, and the terminal performs frequency offset (freq terminal ncy shift) and downsampling filtering (deconator) on the received SSB of the neighboring cell to obtain frequency domain signal data, where the frequency domain signal data is the extracted SSB of the neighboring cell.
With reference to fig. 6, a schematic diagram of extracting an SSB of a neighbor cell according to an embodiment of the present application is shown. After receiving the SSB of the adjacent cell, the terminal performs frequency transfer and down sampling filtering to extract the SSB of the adjacent cell, and the extracted SSB of the adjacent cell is sent to the synchronous signal block measurement module for channel measurement.
In one possible implementation, the terminal performs only steps 306 and 307, and in another possible implementation, the terminal performs only steps 308 and 309. In yet another possible implementation, the terminal performs both steps 306 and 307 and steps 308 and 309.
To sum up, according to the technical solution provided by the embodiment of the present application, when the active bandwidth and the synchronization signal block bandwidth are not overlapped, the terminal adjusts the receiving frequency before receiving the synchronization signal block to receive the synchronization signal block, and completes channel measurement based on the synchronization signal block.
Unnecessary reception can also be avoided by reverting to adjustments to the reception frequency after receiving the synchronization signal blocks of the serving cell and/or the neighbor cell.
In the related art, the pilot frequency measurement is usually completed in the measurement gap, and one measurement gap can only complete one measurement, which is limited by the characteristic, so that the time required for completing the measurement of all frequency points is long, and the measurement efficiency is low. The channel measurement method provided by the embodiment of the application also provides a solution to the problem. In an alternative embodiment provided based on the embodiment shown in fig. 1 or fig. 2, the channel measurement method further includes the following steps:
step 401, when the synchronization signal block bandwidth is used to indicate a frequency interval for receiving the SSB of the neighboring cell, if the target activation bandwidth of the serving cell corresponding to the terminal includes the synchronization signal block bandwidth, then the SSB of the neighboring cell is received.
In the embodiment of the present application, when the active bandwidth of the serving cell includes a synchronization signal block bandwidth used for receiving the SSB of the neighboring cell, the SSB of the neighboring cell is directly received, instead of only receiving the SSB of the neighboring cell in the measurement gap, so that the inter-frequency measurement is not limited to the measurement gap any more, the time required for completing the measurement of all frequency points is reduced, the measurement efficiency is improved, and the occurrence probability of situations such as slow handover and even call drop caused by long measurement time of the terminal is reduced.
Referring to fig. 7 in combination, the target activation bandwidth 71 contains a synchronization signal block bandwidth for receiving the SSB of the neighbor cell, and the terminal directly receives the synchronization signal block 72 of the neighbor cell.
Step 402, extracting the SSBs of the neighbor cells.
In step 403, the inter-frequency measurement is completed through the SSB of the neighboring cell.
To sum up, according to the technical solution provided in the embodiment of the present application, when the active bandwidth of the serving cell includes a synchronization signal block bandwidth for receiving the SSB of the neighboring cell, the SSB of the neighboring cell is directly received, instead of only receiving the SSB of the neighboring cell in the measurement gap, so that the inter-frequency measurement is no longer limited by the measurement gap, the time required for completing the measurement of all frequency points is reduced, the measurement efficiency is improved, and the occurrence probability of situations such as slow handover and even call drop caused by long measurement time at the terminal is reduced.
Referring to fig. 8 in combination, a flowchart of a channel measurement method provided in an embodiment of the present application is shown. The method comprises the following steps:
When the measurement type includes intra-frequency measurement, step 805 and step 806 are performed, or step 807 to step 810 are performed. When the measurement type includes inter-frequency measurement, steps 811 and 812 are performed.
And step 804, carrying out same-frequency measurement scheduling.
And 806, performing same-frequency measurement according to the measurement configuration information.
In step 807, the receiving frequency is adjusted.
And step 809, when the synchronous signal block is received, performing same frequency measurement.
In step 812, inter-frequency measurement is performed in the measurement gap.
The following explains the measurement scheduling effect of the related art and the technical scheme provided by the embodiment of the present application. In this example, the network configures 8 co-frequency measurement frequency points and 7 pilot frequency measurement frequency points, the SMTC period is 10ms, the measurement gap configuration period is 40ms, and the terminal schedules the measurement of one frequency point in each SMTC period.
In the related art, when the SSB for the intra-frequency measurement is not included in the active bandwidth of the terminal, both the intra-frequency measurement and the inter-frequency measurement need to be scheduled within the measurement gap. 60 SMTC periods are needed for completing one round of common-frequency and pilot-frequency point measurement, and the total time is 600ms.
In the embodiment of the application, when the SSB for intra-frequency measurement is not included in the active bandwidth of the terminal, the receiving frequency is adjusted to receive the SSB, and intra-frequency measurement outside the active bandwidth is no longer limited by the measurement gap. Only 25 SMTC periods are needed for completing two rounds of common-frequency and one round of pilot-frequency point measurement, and the total time is 250ms.
Compared with the related art, the measuring efficiency can be improved.
In the following, embodiments of the apparatus of the present application are described, and for portions of the embodiments of the apparatus not described in detail, reference may be made to technical details disclosed in the above-mentioned method embodiments.
Referring to fig. 9, a block diagram of a channel measurement device according to an exemplary embodiment of the present application is shown. The channel measuring device can be implemented by software, hardware or a combination of both as all or part of the terminal. The channel measuring apparatus includes:
an information receiving module 901, configured to receive measurement configuration information sent by a network device, where the measurement configuration information includes a synchronization signal block bandwidth, and the synchronization signal block bandwidth is used to indicate a frequency interval for receiving a synchronization signal block SSB of a serving cell and/or a neighboring cell.
A frequency adjusting module 902, configured to adjust a receiving frequency of the terminal before receiving the SSB if a target activated bandwidth of a serving cell corresponding to the terminal does not overlap with the synchronization signal block bandwidth, where a frequency interval of the adjusted receiving frequency includes the synchronization signal block bandwidth, and the target activated bandwidth is an activated bandwidth used by the serving cell when the terminal receives the SSB.
An SSB receiving module 903, configured to receive SSBs of the serving cell and/or the neighboring cell through the adjusted receiving frequency.
A channel measurement module 904, configured to complete channel measurement through the SSB of the serving cell and/or the neighboring cell.
To sum up, according to the technical scheme provided by the embodiment of the present application, when the activated bandwidth and the synchronization signal block bandwidth are not overlapped, the terminal adjusts the receiving frequency before receiving the synchronization signal block to receive the synchronization signal block, and completes channel measurement based on the synchronization signal block.
In an optional embodiment provided based on the embodiment shown in fig. 9, the frequency adjustment module 902 is configured to:
determining a frequency interval of the adjusted receiving frequency according to the bandwidth of the synchronization signal block and the target activation bandwidth;
and adjusting the receiving frequency according to the frequency interval of the adjusted receiving frequency.
Optionally, the target activation bandwidth of the serving cell is a frequency interval composed of a first lower limit value and a first upper limit value, and the synchronization signal block bandwidth is a frequency interval composed of a second lower limit value and a second upper limit value; the frequency adjustment module 902 is configured to:
determining a frequency interval composed of the second lower limit value and the first upper limit value as a frequency interval of the adjusted receiving frequency; alternatively, the first and second electrodes may be,
and determining a frequency interval composed of the first lower limit value and the second upper limit value as the frequency interval of the adjusted receiving frequency.
Optionally, the frequency adjusting module 902 is configured to determine a union of a target activation bandwidth of the serving cell and the synchronization signal block bandwidth as a frequency interval of the adjusted receiving frequency.
In an optional embodiment provided based on the embodiment shown in fig. 9, the frequency adjustment module 902 is further configured to restore the adjustment of the receiving frequency.
In an optional embodiment provided based on the embodiment shown in fig. 9, the channel measurement module 904 is configured to:
extracting the SSB of the service cell, and completing the same-frequency measurement through the SSB of the service cell; alternatively, the first and second liquid crystal display panels may be,
and extracting the SSB of the adjacent cell, and finishing the pilot frequency measurement through the SSB of the adjacent cell.
In an optional embodiment provided based on the embodiment shown in fig. 9, the SSB receiving module 903 is configured to: and when the synchronization signal block bandwidth is used for indicating a frequency interval for receiving the SSB of the adjacent cell, if the target activation bandwidth of the serving cell corresponding to the terminal includes the synchronization signal block bandwidth, receiving the SSB of the adjacent cell.
The channel measurement module 904 is configured to:
extracting the SSB of the neighbor cell;
and finishing the inter-frequency measurement through the SSB of the adjacent cell.
It should be noted that, when the apparatus provided in the foregoing embodiment implements the functions thereof, only the division of the functional modules is illustrated, and in practical applications, the above functions may be distributed by different functional modules as needed, that is, the internal structure of the device may be divided into different functional modules to implement all or part of the functions described above. In addition, the apparatus and method embodiments provided by the above embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments for details, which are not described herein again.
Fig. 10 is a block diagram of a terminal according to an example embodiment.
The terminal 1000 includes a transmitter 1001, a receiver 1002 and a processor 1003. The processor 1003 may be a controller, and is shown as "controller/processor 1003" in fig. 10. Optionally, the terminal 1000 can further include a modem processor 1005, where the modem processor 1005 can include an encoder 1006, a modulator 1007, a decoder 1008, and a demodulator 1009.
In one example, the transmitter 1001 conditions (e.g., converts to analog, filters, amplifies, and frequency upconverts, etc.) the output samples and generates an uplink signal, which is transmitted via an antenna to the access network equipment described in the embodiments above. On the downlink, the antenna receives the downlink signal transmitted by the access network device in the above embodiment. Receiver 1002 conditions (e.g., filters, amplifies, downconverts, and digitizes, etc.) the received signal from the antenna and provides input samples. In modem processor 1005, an encoder 1006 receives traffic data and signaling messages to be transmitted on the uplink and processes (e.g., formats, encodes, and interleaves) the traffic data and signaling messages. A modulator 1007 further processes (e.g., symbol maps and modulates) the coded traffic data and signaling messages and provides output samples. A demodulator 1009 processes (e.g., demodulates) the input samples and provides symbol estimates. Decoder 1008 processes (e.g., deinterleaves and decodes) the symbol estimates and provides decoded data and signaling messages for transmission to terminal 1000. Encoder 1006, modulator 1007, demodulator 1009, and decoder 1008 may be implemented by a combined modem processor 1005. These elements are processed in accordance with the radio access technology employed by the radio access network (e.g., the access technologies of LTE and other evolved systems). It is noted that when terminal 1000 does not include modem processor 1005, the above-described functions of modem processor 1005 can also be performed by processor 1003.
The processor 1003 controls and manages the operation of the terminal 1000, and is used for executing the processing procedures performed by the terminal 1000 in the embodiment of the present disclosure. For example, the processor 1003 is further configured to perform various steps of the terminal side in the above method embodiments and/or other steps of the technical solutions described in the embodiments of the present disclosure.
Further, terminal 1000 can also include a memory 1004 for storing program codes and data for terminal 1000.
In an exemplary embodiment, a computer-readable storage medium is further provided, in which at least one instruction is stored, and the at least one instruction is loaded and executed by a processor of a terminal to implement the channel measurement method in the above-described method embodiment.
Alternatively, the computer readable storage medium may be a ROM, a RAM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
In an exemplary embodiment, a computer program product or computer program is also provided, the computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions to cause the computer device to perform the above-described channel measurement method.
The above description is only exemplary of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements and the like that are made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A method of channel measurement, the method comprising:
receiving measurement configuration information sent by a network device, wherein the measurement configuration information comprises a synchronization signal block bandwidth, and the synchronization signal block bandwidth is used for indicating a frequency interval for receiving a synchronization signal block SSB of a serving cell;
if the target activation bandwidth of the serving cell corresponding to the terminal does not overlap with the synchronization signal block bandwidth, adjusting the receiving frequency of the terminal before receiving the SSB, wherein the adjusted frequency interval of the receiving frequency contains the synchronization signal block bandwidth, and the target activation bandwidth refers to the activation bandwidth used by the serving cell when the terminal receives the SSB;
receiving the SSB of the serving cell through the adjusted receiving frequency;
and finishing the same-frequency measurement through the SSB of the serving cell, wherein the same-frequency measurement refers to the measurement of the downlink frequency point of the adjacent cell which is the same as the downlink frequency point of the serving cell.
2. The method of claim 1, wherein the adjusting the receiving frequency of the terminal comprises:
determining a frequency interval of the adjusted receiving frequency according to the synchronous signal block bandwidth and the target activation bandwidth;
and adjusting the receiving frequency according to the frequency interval of the adjusted receiving frequency.
3. The method of claim 2, wherein the target activation bandwidth of the serving cell is a frequency interval consisting of a first lower value and a first upper value, and wherein the synchronization signal block bandwidth is a frequency interval consisting of a second lower value and a second upper value;
the determining the frequency interval of the adjusted receiving frequency according to the synchronization signal block bandwidth and the target activation bandwidth includes:
determining a frequency interval composed of the second lower limit value and the first upper limit value as a frequency interval of the adjusted receiving frequency; alternatively, the first and second electrodes may be,
and determining a frequency interval composed of the first lower limit value and the second upper limit value as the frequency interval of the adjusted receiving frequency.
4. The method of claim 2, wherein the determining the frequency interval of the adjusted receiving frequency according to the synchronization signal block bandwidth and the target activation bandwidth comprises:
and determining a union of the target activation bandwidth of the serving cell and the bandwidth of the synchronization signal block as a frequency interval of the adjusted receiving frequency.
5. The method of claim 1, wherein after receiving the SSB of the serving cell via the adjusted receiving frequency, further comprising:
restoring the adjustment to the receive frequency.
6. The method of any of claims 1 to 5, wherein the synchronization signal block bandwidth is further used to indicate a frequency interval of receiving SSBs of neighboring cells;
the method further comprises the following steps:
receiving the SSB of the adjacent cell through the adjusted receiving frequency;
and finishing the inter-frequency measurement through the SSB of the adjacent cell.
7. The method according to any one of claims 1 to 5, further comprising:
when the synchronization signal block bandwidth is used for indicating a frequency interval for receiving the SSB of the adjacent cell, if the target activation bandwidth of the serving cell corresponding to the terminal includes the synchronization signal block bandwidth, receiving the SSB of the adjacent cell;
extracting the SSB of the neighbor cell;
and finishing the inter-frequency measurement through the SSB of the adjacent cell.
8. A channel measurement apparatus, characterized in that the apparatus comprises:
an information receiving module, configured to receive measurement configuration information sent by a network device, where the measurement configuration information includes a synchronization signal block bandwidth, and the synchronization signal block bandwidth is used to indicate a frequency interval for receiving a synchronization signal block SSB of a serving cell;
a frequency adjustment module, configured to adjust a receiving frequency of a terminal before receiving the SSB if a target activation bandwidth of a serving cell corresponding to the terminal does not overlap with the synchronization signal block bandwidth, where a frequency interval of the adjusted receiving frequency includes the synchronization signal block bandwidth, and the target activation bandwidth is an activation bandwidth used by the serving cell when the terminal receives the SSB;
an SSB receiving module, configured to receive an SSB of the serving cell through the adjusted receiving frequency;
and the channel measurement module is used for completing the same frequency measurement through the SSB of the serving cell, wherein the same frequency measurement refers to the measurement of the downlink frequency point of the adjacent cell which is the same as the downlink frequency point of the serving cell.
9. A terminal, characterized in that the terminal comprises a processor and a memory, the memory storing a computer program which is loaded by the processor and which performs the channel measurement method according to any of claims 1 to 7.
10. A computer-readable storage medium, in which a computer program is stored, which is loaded and executed by a processor to implement the channel measurement method according to any one of claims 1 to 7.
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