CN112040523A - Channel measuring method, device, terminal and storage medium - Google Patents

Channel measuring method, device, terminal and storage medium Download PDF

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Publication number
CN112040523A
CN112040523A CN202010937352.5A CN202010937352A CN112040523A CN 112040523 A CN112040523 A CN 112040523A CN 202010937352 A CN202010937352 A CN 202010937352A CN 112040523 A CN112040523 A CN 112040523A
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measurement
frequency
ssb
receiving
terminal
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CN202010937352.5A
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CN112040523B (en
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刘君
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085—Hand-off measurements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • 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, wherein the measurement configuration information comprises measurement task information corresponding to a measurement gap and a bandwidth of a synchronization signal block of an adjacent cell; determining a target SSB in the SSBs of the neighbor cells; receiving a measurement resource and a target SSB corresponding to measurement task information; and completing measurement tasks through the measurement resources and completing pilot frequency measurement through the target SSB. The technical scheme provided by the embodiment of the application can shorten the time for the terminal to measure all frequency points, improve the pilot frequency measurement scheduling efficiency and the measurement efficiency, and reduce the occurrence probability that the terminal is not switched timely or even dropped calls.

Description

Channel measuring method, device, terminal and storage medium
Technical Field
The present disclosure 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 Measurement Gaps (MG), and a terminal executes Inter-frequency Measurement (Inter-frequency measurements), Inter-RAT Measurement (Inter-RAT measurements) and a specified co-frequency Measurement task in the configured Measurement gaps (a Synchronization Signaling Block (SSB) corresponding to a Synchronization Signal Block (SSB) for completing the co-frequency Measurement task does not belong to an active bandwidth of a serving cell corresponding to the terminal).
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 measurement task information corresponding to a measurement gap and a neighbor cell synchronization signal block bandwidth, the neighbor cell synchronization signal block bandwidth is used for indicating a frequency interval for receiving a synchronization signal block SSB of a neighbor cell, and a center frequency point of the neighbor cell is different from a center frequency point of a serving cell corresponding to a terminal;
determining a target SSB among SSBs of the neighbor cells;
receiving a measurement resource corresponding to the measurement task information and the target SSB;
and in the measurement gap, completing a measurement task according to the measurement resource and completing pilot frequency measurement through the target SSB.
In another aspect, an embodiment of the present application provides a channel measurement apparatus, where the apparatus includes:
the system comprises an information receiving module, a measurement configuration module and a processing module, wherein the information receiving module is used for receiving measurement configuration information sent by network equipment, the measurement configuration information comprises measurement task information corresponding to a measurement gap and a synchronous signal block bandwidth of an adjacent cell, the synchronous signal block bandwidth of the adjacent cell is used for indicating a frequency interval for receiving a synchronous signal block SSB of the adjacent cell, and a central frequency point of the adjacent cell is different from a central frequency point of a service cell corresponding to a terminal;
a target SSB determining module, configured to determine a target SSB among SSBs of the neighboring cells;
a resource receiving module, configured to receive a measurement resource corresponding to the measurement task and the target SSB;
and the channel measurement module is used for completing a measurement task according to the measurement resource and completing pilot frequency measurement through the target SSB in the measurement gap.
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, an embodiment of the present application provides a chip, where the chip includes a processor and an interface, where the processor obtains program instructions through the interface, and the processor is configured to execute the program instructions to perform the channel measurement method according to an 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:
the target SSB allowed to be received in the measurement gap is determined in advance before the measurement gap arrives, so that the measurement resources required by the measurement task corresponding to the measurement gap are received, the target SSB is received, the measurement task corresponding to the measurement gap is completed according to the measurement resources in the measurement gap subsequently, and meanwhile, pilot frequency measurement is completed through the target SSB, so that a plurality of measurement tasks including at least one pilot frequency measurement task can be completed in one measurement gap, the time for the terminal to measure all frequency points is shortened, the pilot frequency measurement scheduling efficiency and the measurement efficiency are improved, and the occurrence probability that the terminal is switched untimely 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 schematic diagram of protocol layers provided by one embodiment of the present application;
fig. 3 is a schematic diagram of inter-frequency measurement in a measurement gap provided in the related art;
fig. 4 is a flowchart of a channel measurement method according to an embodiment of the present application;
FIG. 5 is a schematic diagram of a receiving target SSB provided by an embodiment of the present application;
FIG. 6 is a schematic diagram of extracting a target SSB provided by one embodiment of the present application;
FIG. 7 is a schematic diagram of a receiving target SSB provided by another embodiment of the present application;
FIG. 8 is a schematic diagram of a receiving target SSB provided by another embodiment of the present application;
fig. 9 is a flowchart of a channel measurement method according to an embodiment of the present application;
fig. 10 is a block diagram of a channel measuring apparatus according to an embodiment of the present application;
fig. 11 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, embodiments of the present application will be described in further detail below 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) pilot frequency measurement: and measuring downlink frequency points (same cells or adjacent cells) different from the downlink frequency points 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 the like. 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, names of devices having a base station function may be different, for example, in an LTE system, referred to as an evolved node B (eNB or eNodeB), in a 3G communication system, referred to as a node B (node B), and so on. For convenience of description, in the embodiments of the present disclosure, the above-mentioned apparatus for providing a wireless communication function for a terminal is collectively referred to as an access network device.
The access network device 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 the RRC connection with the access network device 12, the terminal 11 receives the RRC connection reconfiguration message, and then the terminal 11 performs channel measurement on the 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.
Fig. 2 shows a schematic diagram of protocol layers provided by an embodiment of the present application.
The Protocol stack includes a physical layer, a Medium Access Control (MAC) layer, a Radio Link Control (RLC) layer, a Packet Data Convergence Protocol (PDCP) layer, a Radio Resource Control (RRC) layer, a Non-Access Stratum (NAS) layer, and an application layer. The physical layer is the lowest layer and implements various physical layer signal processing functions. The MAC layer is used to control and connect the physical medium of the physical layer. The RLC layer is used to control the radio link and provides a reliable link independent of the radio solution. The PDCP layer is scheduled and controlled by the RRC layer and transfers user data from an upper layer to the RLC sublayer.
The RRC layer is used for broadcasting system information and RRC connection control. The system message includes cell selection/reselection parameters, neighbor cell information, common channel configuration information, and the like. The RRC connection management mainly includes RRC connection establishment, recovery, release, suspension, modification, access stratum security activation, and other processes, and also includes parameter configuration and control processes performed by using the RRC connection. When the terminal needs to select a cell or reselect a cell, channel measurement is completed on the RRC layer, for example, measurement configuration and measurement report are completed. The measurement configuration includes establishment, modification and release of measurement, establishment and release of measurement interval, and the like. That is, the channel measurement method provided in the embodiment of the present application occurs in the RRC layer.
The NAS layer is a functional layer between the core network and the user equipment, and supports signaling and data transmission between the two. The application layer provides an interface between applications on either side of the network, such as other functions like remote access and management, email, virtual middleboxes, and directory services.
In the related art, when a measurement gap is used for scheduling a pilot frequency measurement task, a terminal receives a synchronization signal block of an adjacent cell corresponding to the measurement task in the measurement gap, and then completes pilot frequency measurement by using the synchronization signal block. Referring to fig. 3 in combination, the terminal receives a synchronization signal block 33 of the neighbor cell 1 within the measurement gap 31.
Based on this, embodiments of the present application provide a channel measurement method, apparatus, terminal, and storage medium, where a target SSB allowed to be received in a measurement gap is predetermined before the measurement gap arrives, so as to receive measurement resources required by a measurement task corresponding to the measurement gap, receive the target SSB, and subsequently complete a measurement task corresponding to the measurement gap according to the measurement resources in the measurement gap, and simultaneously complete inter-frequency measurement through the target SSB, so that multiple measurement tasks including at least one inter-frequency measurement task can be completed in one measurement gap, thereby shortening the time for the terminal to measure all frequency points, improving scheduling efficiency and measurement efficiency of inter-frequency measurement, and reducing the occurrence probability of untimely terminal handover and even call drop.
Referring to fig. 4, a flowchart of a channel measurement method according to an embodiment of the present application is shown. The method comprises the following steps:
step 401, receiving measurement configuration information sent by a network side device.
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 comprises measurement task information corresponding to the measurement gap and a neighbor cell synchronization signal block bandwidth, so that in the subsequent step, the synchronization signal block of the neighbor cell is received based on the neighbor cell synchronization signal block bandwidth, and the measurement task in the measurement gap is scheduled based on the measurement task information corresponding to the measurement gap.
The measurement gap is one or more, which is determined according to the number of measurement tasks. Optionally, the number of measurement gaps is smaller than the number of measurement tasks. The relevant parameters of the measurement gap include parameters such as time position, time length, period and type of the measurement gap. The periodicity of the measurement gaps is preconfigured by the communication system, such as 20ms, 40ms, 80ms, 260ms, and so on. Types of Measurement GAPs include, but are not limited to, Measurement GAPs, discontinuous Reception GAPs (DRX GAPs), dependent GAPs (SLAVE GAPs).
The measurement task information is used for indicating the type of the measurement task to be completed in the measurement gap and the measurement resources required by the measurement task to be completed in the measurement gap, and the type of the measurement task comprises an inter-system measurement task, an inter-frequency measurement task and a specified co-frequency measurement task. The SSB for completing the specified same-frequency measurement task is not overlapped with the activation bandwidth of the service cell corresponding to the terminal.
The neighbor cell synchronization signal block bandwidth refers to a frequency interval of receiving the SSBs of the neighbor cells. It should be noted that the center frequency point of the neighboring cell is different from the center frequency point of the serving cell corresponding to the terminal, that is, the SSB of the neighboring cell is used for inter-frequency measurement.
Optionally, the measurement configuration information further 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.
Step 402, determining a target SSB in the SSBs of the neighboring cells.
The target SSB refers to the SSB of the neighbor cell that is expected to be received within the measurement gap.
In the embodiment of the application, the target SSB is determined before the measurement gap arrives, the terminal receives the determined target SSB when the subsequent measurement gap arrives, and the received target SSB is used for completing an inter-frequency measurement task, so that the pre-configured measurement task can be completed in the measurement gap, the inter-frequency measurement can be completed through the target SSB, the time required for completing the channel measurement is reduced, and the measurement efficiency is improved.
Optionally, the measurement configuration information further includes a time position of the SSB of the neighboring cell, and before the measurement gap arrives, the target SSB is determined according to the measurement gap and the time position of the SSB of the neighboring cell. Illustratively, the terminal determines the SSB of the neighbor cell whose time position is within the measurement gap as the target SSB. In this way, the target SSB is predetermined so that the target SSB can be successfully received when the measurement gap arrives, and a plurality of measurement tasks in the same measurement gap can be successfully completed.
In an example, the time position of the SSB of the neighboring cell 1 is 47 th time slot, the time position of the SSB of the neighboring cell 2 is 49 th time slot, the time position of the neighboring cell 3 is 53 th time slot, and the measurement gap is 45 th to 50 th time slot, and then the terminal determines the SSB of the neighboring cell 1 and the SSB of the neighboring cell 2 whose time positions are within the measurement gap as the target SSB.
Optionally, the terminal determines the target SSB before the measurement gap arrives.
Step 403, receiving the measurement resource and the target SSB corresponding to the measurement task information.
Optionally, when the target SSB is determined based on the time location and the measurement gap, the terminal receives the measurement resource corresponding to the measurement task information in the measurement gap to complete a corresponding measurement task, and receives the target SSB to complete subsequent inter-frequency measurement. In other possible implementation manners, the terminal receives the measurement resource and the target SSB corresponding to the measurement task information before the measurement gap arrives.
In the measurement gap, the measurement task is completed through the measurement resource and the inter-frequency measurement is completed through the target SSB, step 404.
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. And the terminal completes pilot frequency measurement through the received target SSBs, wherein each target SSB corresponds to one pilot frequency measurement.
The measurement task comprises any one of a pilot frequency measurement task, a different system measurement task and a specified same frequency measurement task. The completion of the measurement task through the measurement resource includes: completing the pilot frequency measurement task according to the measurement resources; or, completing the specified same-frequency measurement task according to the measurement resource; or, the inter-system measurement task is completed according to the measurement resource. The bandwidth of the synchronous signal block corresponding to the SSB for completing the specified same-frequency measurement task is not overlapped with the activation bandwidth of the service cell corresponding to the terminal.
To sum up, according to the technical scheme provided by the embodiment of the application, the target SSB allowed to be received in the measurement gap is predetermined before the measurement gap arrives, so that the measurement resource required by the measurement task corresponding to the measurement gap is received, the target SSB is received, and the pilot frequency measurement is completed through the target SSB while the measurement task corresponding to the measurement gap is completed according to the measurement resource subsequently in the measurement gap, so that a plurality of measurement tasks including at least one pilot frequency measurement task can be completed in one measurement gap, the time for the terminal to measure all frequency points is shortened, the pilot frequency measurement scheduling efficiency and the measurement efficiency are improved, and the occurrence probability that the terminal is not switched timely or even dropped calls is reduced.
In the above embodiments, it was mentioned that the terminal receives the target SSB within the measurement gap. The manner in which the terminal receives the target SSB is explained below.
In a possible implementation manner, when the bandwidth of the synchronization signal block of the neighboring cell does not fall into the receiving frequency interval supported by the terminal, step 403 is specifically implemented as: and adjusting the receiving frequency of the terminal, and receiving the target SSB through the adjusted receiving frequency.
In this implementation manner, the adjusted frequency interval of the receiving frequency includes the bandwidths of the synchronization signal blocks of the neighboring cells corresponding to the target SSBs, respectively, at this time, the terminal can receive the target SSBs through the adjusted receiving frequency, and then perform inter-frequency measurement through the target SSBs, so that multiple measurement tasks are allowed to be completed in one measurement gap, and the inter-frequency measurement scheduling efficiency is improved.
Before adjusting the receiving frequency, the terminal determines the frequency interval of the adjusted receiving frequency based on the bandwidth of the adjacent cell synchronization signal block corresponding to the target SSB. Optionally, the terminal adjusts the receiving frequency of the terminal by: determining a frequency minimum value and a frequency maximum value in the bandwidth of a synchronous signal block respectively corresponding to a target SSB, and determining a frequency interval consisting of the frequency minimum value and the frequency minimum value as a frequency interval of the adjusted receiving frequency; and adjusting the receiving frequency of the terminal according to the frequency interval of the adjusted receiving frequency.
The frequency interval composed of the frequency maximum value and the frequency minimum value is a frequency interval with the frequency maximum value and the frequency minimum value as boundaries. Illustratively, the target SSB1 corresponds to a synchronization signal block having a bandwidth of fl1，fh1]The target SSB2 corresponds to a synchronization signal block with a bandwidth of [ f [ ]l2，fh2]Maximum value of frequency fh1Minimum value of frequency fl2Then the frequency interval of the adjusted receiving frequency is [ fl2，fh1]. The terminal takes the frequency minimum value and the frequency maximum value in the synchronous signal block bandwidth respectively corresponding to the target SSB as the boundary of the frequency interval of the receiving frequency, and thenAnd adjusting the receiving frequency according to the frequency interval so that the frequency interval of the receiving frequency comprises the synchronous signal block bandwidth corresponding to the target SSB, and the terminal can receive the target SSB through the receiving frequency.
Referring collectively to fig. 5, a schematic diagram of a receiving target SSB is shown, according to an embodiment of the present application. The terminal determines the SSB of the neighboring cell 2 as a target SSB52, adjusts the receiving frequency when scheduling a specified co-frequency measurement task in the measurement gap 51, where the adjusted receiving frequency includes the synchronization signal block bandwidth of the neighboring cell 2 and the synchronization signal block bandwidth of the serving cell, receives the target SSB52 and the SSB53 of the serving cell in the measurement gap 51, and then completes the inter-frequency measurement through the target SSB52 and completes the specified co-frequency measurement through the SSB53 of the serving cell.
In other possible implementation manners, the terminal determines a union set of the bandwidths of the synchronization signal blocks corresponding to the target SSBs as a frequency interval of the adjusted receiving frequency; and adjusting the receiving frequency of the terminal according to the frequency interval of the adjusted receiving frequency. Illustratively, the target SSB1 corresponds to a synchronization signal block having a bandwidth of fl1，fh1]The target SSB2 corresponds to a synchronization signal block with a bandwidth of [ f [ ]l2，fh2]Then the frequency interval of the adjusted receiving frequency is [ fl1，fh1]∪[fl2，fh2]。
Alternatively, the terminal determines whether a frequency adjustment condition is satisfied before receiving the target SSB by adjusting the reception frequency. The frequency adjustment condition refers to a condition that allows the terminal to adjust the receiving frequency, for example, the adjusted receiving frequency range is smaller than the maximum receiving frequency range supported by the terminal. Optionally, the terminal determines whether the frequency adjustment condition is satisfied by detecting a difference between the measurement frequency points corresponding to the target SSBs, respectively. Exemplarily, the terminal determines the frequency point maximum value and the frequency point minimum value in the measurement frequency points corresponding to each target SSB, determines that the frequency adjustment condition is satisfied if a difference between the frequency point maximum value and the frequency point minimum value is smaller than a preset threshold, and determines that the frequency adjustment condition is not satisfied if the difference between the frequency point maximum value and the frequency point minimum value is larger than the preset threshold. The preset threshold is set experimentally or empirically, and is not limited in the embodiment of the present application.
Optionally, when the terminal receives the target SSBs by adjusting the receiving frequency, because the multiple target SSBs are in one path of data, and when the pilot frequency measurement is performed subsequently through the target SSBs, the target SSBs need to be extracted from the received path of data, and then the pilot frequency measurement is completed through the extracted target SSBs. Optionally, the received target SSB is time domain signal data, and the terminal performs frequency shift (frequency shift) and downsampling filtering (decimator) on the received SSB of the neighboring cell to obtain frequency domain signal data, which is also the extracted target SSB.
Referring to fig. 6 in combination, a schematic diagram of an extracted target SSB provided in the embodiment of the present application is shown. After receiving a plurality of target SSBs through one path of data, the terminal performs frequency transfer and downsampling filtering on the target SSBs to extract the target SSBs, and the extracted target SSBs are sent to the synchronous signal block measurement module to perform pilot frequency measurement.
Optionally, the terminal reverts the adjustment of the receiving frequency after receiving the target SSB through the adjusted receiving frequency to avoid unnecessary reception.
In other possible implementation manners, when the bandwidth of the synchronization signal block of the neighboring cell falls into the receiving frequency interval supported by the terminal, step 403 is specifically implemented as: and respectively receiving the target SSBs through multiple paths of carriers supported by the terminal.
After determining a target SSB, a terminal queries whether a bandwidth of a synchronization signal block of an adjacent cell corresponding to the target SSB is included in a frequency interval of multiple carriers supported by the terminal, and if the bandwidth of the synchronization signal block of the adjacent cell corresponding to the target SSB is included in the frequency interval of the multiple carriers supported by the terminal, the multiple carriers are enabled, and the target SSB is received through the multiple carriers.
Illustratively, the terminal supports three carriers, a frequency interval of the first carrier is a first frequency interval, a frequency interval of the second carrier is a second frequency interval, a frequency interval of the third carrier is a third frequency interval, a bandwidth of a synchronization signal block of an adjacent cell corresponding to the target SSB1 is included in the first frequency interval, a bandwidth of a synchronization signal block of an adjacent cell corresponding to the target SSB2 is included in the second frequency interval, and a bandwidth of a synchronization signal block of an adjacent cell corresponding to the target SSB3 is included in the third frequency interval, so that the terminal enables the three carriers, receives the target SSB1 through the first carrier, receives the target SSB2 through the second carrier, and receives the target SSB3 through the third carrier.
Referring collectively to fig. 7, a schematic diagram of a receiving target SSB provided by an embodiment of the present application is shown. The terminal takes the SSB of the neighboring cell 3 and the SSB of the neighboring cell 4 as the target SSB71, the SSB of the neighboring cell 3 and the SSB of the neighboring cell 4 both fall within the receiving frequency interval supported by the terminal, and the terminal receives the SSBs of the neighboring cells 3 and 4 through the carrier supported by the terminal.
In other possible implementations, the terminal employs a combination of the two implementations to achieve reception of the target SSB within the measurement gap. Optionally, the terminal receives a first target SSB in the target SSBs through a carrier supported by the terminal, and receives a second target SSB in the target SSBs through the adjusted receiving frequency. The first target SSB refers to a target SSB in which the bandwidth of the synchronization signal block of the neighboring cell belongs to a carrier supported by the terminal, and the second target SSB refers to a target SSB in which the bandwidth of the synchronization signal block of the neighboring cell does not belong to a carrier supported by the terminal.
Referring collectively to fig. 8, a schematic diagram of a receiving target SSB provided by an embodiment of the present application is shown. The terminal determines the SSB of the neighboring cell 5, the SSB of the neighboring cell 6, and the SSB of the neighboring cell 7 as a target SSB83, where the SSB of the neighboring cell 5 and the SSB of the neighboring cell 6 do not fall within a reception frequency interval supported by the terminal, the terminal adjusts the reception frequency 82 to receive the SSB of the neighboring cell 5 and the SSB of the neighboring cell 6, the SSB of the neighboring cell 7 falls within the reception frequency interval supported by the terminal, and the terminal receives the SSB of the neighboring cell 7 through a carrier supported by the terminal.
To sum up, according to the technical scheme provided by the embodiment of the present application, one or more target SSBs are received through a carrier supported by a terminal or by adjusting a receiving frequency, so that a plurality of pilot frequency measurement tasks can be completed in one measurement gap, or the pilot frequency measurement tasks can be completed in the measurement gap used for completing the inter-system tasks or the designated measurement tasks, the time for the terminal to measure all frequency points is shortened, the pilot frequency measurement scheduling efficiency and the measurement efficiency are improved, and the occurrence probability of terminal switching failure or even call drop is reduced.
Unnecessary reception can also be avoided by reverting to the adjustment of the reception frequency after receiving the SSB of the neighbor cell.
Referring collectively to fig. 9, a flow chart of a channel measurement method provided by an embodiment of the present application is shown. The method comprises the following steps:
step 901, measurement scheduling.
Optionally, the terminal receives measurement configuration information sent by the network side device in the measurement scheduling step to complete measurement scheduling.
Step 902, select a measurement type.
When the measurement type is inter-frequency measurement and intra-frequency measurement is specified, the following steps 903 and 906 are performed.
Step 903, detecting whether the SSBs of other neighboring cells except the SSB used in the measurement task can be received in the measurement gap.
The SSBs of other neighboring cells than the SSB used in the measurement task are also the target SSBs. Optionally, the terminal determines whether the target SSB exists before the measurement gap arrives.
Step 904, configuring the receiving frequency to receive the SSBs of the other neighboring cells.
Optionally, the terminal adjusts the reception frequency to receive the target SSB.
Step 905, completing inter-frequency measurement by the SSBs of other neighboring cells.
Optionally, the terminal completes inter-frequency measurement through the target SSB.
Step 906, when the measurement gap is over, restoring the receiving frequency to the activated bandwidth of the serving cell corresponding to the terminal.
Optionally, the terminal reverts the adjustment of the receiving frequency after receiving the target SSB to avoid receiving unnecessary data.
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. 10, 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:
the information receiving module 1001 is configured to receive measurement configuration information sent by a network device, where the measurement configuration information includes measurement task information corresponding to a measurement gap and a neighboring cell synchronization signal block bandwidth, the neighboring cell synchronization signal block bandwidth is used to indicate a frequency interval for receiving a synchronization signal block SSB of a neighboring cell, and a center frequency point of the neighboring cell is different from a center frequency point of a serving cell corresponding to a terminal.
A target SSB determining module 1002, configured to determine a target SSB among SSBs of the neighboring cells.
A resource receiving module 1003, configured to receive the measurement resource corresponding to the measurement task and the target SSB.
A channel measurement module 1004, configured to complete a measurement task according to the measurement resource and complete inter-frequency measurement through the target SSB in the measurement gap.
To sum up, according to the technical scheme provided by the embodiment of the application, the target SSB allowed to be received in the measurement gap is predetermined before the measurement gap arrives, then the measurement resource required by the measurement task corresponding to the measurement gap is received, the target SSB is received, and the pilot frequency measurement is completed through the target SSB while the measurement task corresponding to the measurement gap is completed according to the measurement resource in the measurement gap subsequently, so that a plurality of measurement tasks including at least one pilot frequency measurement task can be completed in one measurement gap, the time for the terminal to measure all frequency points is shortened, the pilot frequency measurement scheduling efficiency and the measurement efficiency are improved, and the occurrence probability that the terminal is not switched timely or even dropped calls is reduced.
In an optional embodiment provided based on the embodiment shown in fig. 10, the target SSB receiving module 1003 is configured to:
adjusting the receiving frequency of the terminal for receiving the data in the activated bandwidth of the service cell according to the adjacent cell synchronous signal block bandwidth respectively corresponding to the target SSB, so that the frequency interval of the adjusted receiving frequency contains the adjacent cell synchronous signal block bandwidth respectively corresponding to the target SSB;
receiving the target SSB through the adjusted receiving frequency.
Optionally, the resource receiving module 1003 is configured to:
determining a frequency minimum value and a frequency maximum value in the adjacent cell synchronous signal block bandwidth respectively corresponding to the target SSB;
determining a frequency interval composed of the minimum frequency value and the minimum frequency value as a frequency interval of the adjusted receiving frequency;
and adjusting the receiving frequency according to the frequency interval of the adjusted receiving frequency.
Optionally, the resource receiving module 1003 is further configured to:
restoring the adjustment to the receive frequency.
In an optional embodiment provided based on the embodiment shown in fig. 10, the measurement configuration information further includes a time location of an SSB of the neighboring cell;
the target SSB determining module 1002 is configured to determine the target SSB according to the measurement gap and the time position of the SSB of the neighboring cell.
Optionally, the target SSB determining module 1002 is configured to determine an SSB of the neighboring cell whose time position is within the measurement gap as the target SSB.
In an optional embodiment provided based on the embodiment shown in fig. 10, the channel measurement module 1004 is configured to:
completing a pilot frequency measurement task according to the measurement resource; alternatively, the first and second electrodes may be,
finishing an appointed same-frequency measurement task according to the measurement resource, wherein the bandwidth of a synchronous signal block corresponding to the SSB for finishing the appointed same-frequency measurement task is not overlapped with the activation bandwidth of a service cell corresponding to the terminal; alternatively, the first and second electrodes may be,
and completing the measurement task of the different systems according to the measurement resources.
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 functions may be distributed by different functional modules according to needs, that is, the internal structure of the apparatus 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. 11 is a block diagram of a terminal according to an example embodiment.
The terminal 1100 comprises a transmitter 1101, a receiver 1102 and a processor 1103. The processor 1103 may also be a controller, which is shown as "controller/processor 1103" in fig. 11. Optionally, the terminal 1100 may further include a modem processor 1105, where the modem processor 1105 may include an encoder 1106, a modulator 1107, a decoder 1108, and a demodulator 1109.
In one example, the transmitter 1101 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 1102 conditions (e.g., filters, amplifies, downconverts, and digitizes, etc.) the received signal from the antenna and provides input samples. In modem processor 1105, an encoder 1106 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 1107 further processes (e.g., symbol maps and modulates) the encoded traffic data and signaling messages and provides output samples. A demodulator 1109 processes (e.g., demodulates) the input samples and provides symbol estimates. A decoder 1108 processes (e.g., deinterleaves and decodes) the symbol estimates and provides decoded data and signaling messages for transmission to terminal 1100. Encoder 1106, modulator 1107, demodulator 1109, and decoder 1108 may be implemented by a combined modem processor 1105. 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). Note that when terminal 1100 does not include modem processor 1105, the above-described functions of modem processor 1105 may also be performed by processor 1103.
In the embodiment of the present disclosure, modem processor 1105 controls and manages the operation of terminal 1100, and is configured to execute the processing procedure performed by terminal 1100 in the embodiment of the present disclosure. Further, terminal 1100 can also include a memory 1104, memory 1104 for storing program codes and data for terminal 1100.
In an exemplary embodiment, a chip is further provided, where the chip includes a processor and an interface, where the processor obtains program instructions through the interface, and the processor is configured to execute the program instructions to perform the channel measurement method in the foregoing method embodiment.
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 (11)

1. A method of channel measurement, the method comprising:
receiving measurement configuration information sent by network equipment, wherein the measurement configuration information comprises measurement task information corresponding to a measurement gap and a neighbor cell synchronization signal block bandwidth, the neighbor cell synchronization signal block bandwidth is used for indicating a frequency interval for receiving a synchronization signal block SSB of a neighbor cell, and a center frequency point of the neighbor cell is different from a center frequency point of a serving cell corresponding to a terminal;
determining a target SSB among SSBs of the neighbor cells;
receiving a measurement resource corresponding to the measurement task information and the target SSB;
and in the measurement gap, completing a measurement task according to the measurement resource and completing pilot frequency measurement through the target SSB.
2. The method of claim 1, wherein the receiving the measurement resources and the target SSB corresponding to the measurement task information comprises:
adjusting the receiving frequency of the terminal for receiving the data in the activated bandwidth of the serving cell according to the adjacent cell synchronous signal block bandwidth respectively corresponding to the target SSB, so that the frequency interval of the adjusted receiving frequency contains the adjacent cell synchronous signal block bandwidth respectively corresponding to the target SSB;
receiving the target SSB through the adjusted receiving frequency.
3. The method according to claim 2, wherein the adjusting the receiving frequency of the terminal for receiving the data in the active bandwidth of the serving cell according to the bandwidths of the neighboring cell synchronization signal blocks respectively corresponding to the target SSBs comprises:
determining a frequency minimum value and a frequency maximum value in the adjacent cell synchronous signal block bandwidth respectively corresponding to the target SSB;
determining a frequency interval composed of the minimum frequency value and the minimum frequency value as a frequency interval of the adjusted receiving frequency;
and adjusting the receiving frequency according to the frequency interval of the adjusted receiving frequency.
4. The method of claim 2, wherein after receiving the target SSB via the adjusted receiving frequency, further comprising:
restoring the adjustment to the receive frequency.
5. The method according to any of claims 1 to 4, wherein the measurement configuration information further comprises a time location of the SSB of the neighbor cell;
the determining a target SSB among the SSBs of the neighbor cells includes:
and determining the target SSB according to the measurement gap and the time position of the SSB of the adjacent cell.
6. The method of claim 5, wherein the determining the target SSB according to the measurement gap and the time location of the SSB of the neighbor cell comprises:
determining the SSB of the neighbor cell whose time position is within the measurement gap as the target SSB.
7. The method according to any of claims 1 to 4, wherein completing measurement tasks according to the measurement resources within the measurement gap comprises:
completing a pilot frequency measurement task according to the measurement resource; alternatively, the first and second electrodes may be,
finishing a specified same-frequency measurement task according to the measurement resource, wherein the bandwidth of a synchronous signal block corresponding to the SSB for finishing the specified same-frequency measurement task is not overlapped with the activation bandwidth of the service cell; alternatively, the first and second electrodes may be,
and completing the measurement task of the different systems according to the measurement resources.
8. A channel measurement apparatus, characterized in that the apparatus comprises:
the system comprises an information receiving module, a measurement configuration module and a processing module, wherein the information receiving module is used for receiving measurement configuration information sent by network equipment, the measurement configuration information comprises measurement task information corresponding to a measurement gap and a synchronous signal block bandwidth of an adjacent cell, the synchronous signal block bandwidth of the adjacent cell is used for indicating a frequency interval for receiving a synchronous signal block SSB of the adjacent cell, and a central frequency point of the adjacent cell is different from a central frequency point of a service cell corresponding to a terminal;
a target SSB determining module, configured to determine a target SSB among SSBs of the neighboring cells;
a resource receiving module, configured to receive a measurement resource corresponding to the measurement task and the target SSB;
and the channel measurement module is used for completing a measurement task according to the measurement resource and completing pilot frequency measurement through the target SSB in the measurement gap.
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 chip, characterized in that the chip comprises a processor and an interface, the processor obtains program instructions through the interface, and the processor is configured to execute the program instructions to perform the channel measurement method according to any one of claims 1 to 7.
11. 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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