CN111918353A

CN111918353A - Method and device for measuring adjacent cell signals of mobile terminal

Info

Publication number: CN111918353A
Application number: CN202010795647.3A
Authority: CN
Inventors: 吴晓荣
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2020-11-10
Anticipated expiration: 2040-08-10
Also published as: CN111918353B

Abstract

The invention discloses a method and a device for measuring adjacent cell signals of a mobile terminal, wherein the method comprises the following steps: receiving a neighbor CSI-RS signal to prepare for accelerator on-line processing of neighbor CSI-RS measurement, and receiving a neighbor SSB signal to prepare for accelerator off-line processing of neighbor SSB measurement; and responding to a measurement accelerator sharing the same mobile terminal for the adjacent cell CSI-RS measurement and the adjacent cell SSB measurement, and respectively setting a first time period for driving the measurement accelerator to perform the adjacent cell CSI-RS measurement and a second time period for driving the measurement accelerator to perform the adjacent cell SSB measurement, so that the measurement accelerator performs the adjacent cell CSI-RS measurement and the adjacent cell SSB measurement in a time-sharing manner according to the first time period and the second time period. The invention coordinates and schedules the on-line processing of the accelerator for measuring the CSI-RS of the adjacent region and the off-line processing of the accelerator for measuring the SSB in order, thereby reducing the hardware cost and the chip power consumption.

Description

Method and device for measuring adjacent cell signals of mobile terminal

Technical Field

The present invention relates to the field of mobile communication technologies, and in particular, to a method and an apparatus for measuring CSI-RS (Channel state information reference signal) and SSB (SS/PBCH (physical broadcast Channel) Block, synchronization signal, and PBCH Block) in adjacent cells of an NR (5G (fifth generation mobile communication technology) NR, global 5G standard) terminal.

Background

In the NR terminal, as long as the received data measured in the neighboring cell is offline cached with DDR (double data rate synchronous dynamic random access memory), there is a requirement for the read-write bandwidth of DDR, generally higher DDR bandwidth requirement means higher hardware cost, otherwise, the system risk of insufficient peak DDR read-write bandwidth is increased.

For the measurement bandwidth {24, 48, 96, 192, 264} RBs of the CSI-RS, even if the SCS (subcarrier spacing) is limited to 96 RBs (Resource Block) with 15khz, the bandwidth for writing DDR under CA (Carrier aggregation) of 2CC is 491.52MB/s, the requirement of an ASIC (application specific Integrated Circuit) on the DDR read bandwidth is higher, and the low DDR read bandwidth can cause ASIC pipeline of the measurement accelerator to be poor, thereby affecting the processing capability of the measurement accelerator.

By limiting the adjacent region measurement bandwidth (limiting the number of RBs for receiving frequency domain data), the CSI-RS adjacent region measurement data is cached to a buffer (buffer) inside hardware, and the received data is directly processed on line by a hardware-driven measurement accelerator, so that the read-write bandwidth limitation of DDR is avoided. However, during this period, the CSI-RS signal processing is always exclusive to the measurement accelerator, and software is not allowed to perform accelerator scheduling processing on SSB neighbor measurement data previously buffered from received data to the DDR.

At present, in order to solve the above problems, the read-write bus bandwidth of the DDR is further increased or hardware of an identical measurement accelerator is added, but the above manner naturally results in an increase in hardware cost, an increase in chip area, and an increase in chip power consumption.

Disclosure of Invention

The technical problem to be solved by the present invention is to provide a method and an apparatus for measuring a neighboring cell signal of a mobile terminal, an electronic device, and a computer readable medium, in order to overcome the defects of high hardware cost and high chip power consumption of the neighboring cell signal measurement of the mobile terminal in the prior art.

The invention solves the technical problems through the following technical scheme:

a method for neighbor cell signal measurement of a mobile terminal, comprising:

receiving a neighbor CSI-RS signal for accelerator on-line (online) processing of neighbor CSI-RS measurement, receiving a neighbor SSB signal for accelerator off-line (offline) processing of neighbor SSB measurement; and the number of the first and second groups,

and responding to a measurement accelerator sharing the same mobile terminal for the adjacent cell CSI-RS measurement and the adjacent cell SSB measurement, and respectively setting a first time period for driving the measurement accelerator to perform the adjacent cell CSI-RS measurement and a second time period for driving the measurement accelerator to perform the adjacent cell SSB measurement, so that the measurement accelerator performs the adjacent cell CSI-RS measurement and the adjacent cell SSB measurement according to the first time period and the second time period in a time sharing manner.

Optionally, the step of respectively setting a first time period for driving the measurement accelerator to perform the neighbor CSI-RS measurement and a second time period for driving the measurement accelerator to perform the neighbor SSB measurement includes:

respectively setting a cycle scheduling period and a receiving window for adjacent cell CSI-RS measurement, arranging a plurality of receiving windows according to a preset rule in each cycle scheduling period, and driving the measurement accelerator to carry out the first time period of the adjacent cell CSI-RS measurement to comprise the receiving time periods of the plurality of receiving windows according to the arrangement;

setting a time period for driving the measurement accelerator other than the first time period as a second time period for driving the measurement accelerator to perform the neighbor SSB measurement.

Optionally, a reception time period of the reception window is less than or equal to half of a maximum period of the CSI-RS signal.

Optionally, the step of setting the cyclic scheduling period includes:

and judging whether the terminal network is configured with a Measurement interval (Measurement GAP), if so, setting 2 times of a larger period between an interval period and the maximum period of the CSI-RS signal as a cyclic scheduling period, and if not, setting 2 times of the maximum period of the CSI-RS signal as the cyclic scheduling period.

Optionally, the step of arranging a plurality of receiving windows according to a preset rule in each of the cyclic scheduling periods includes:

and arranging a plurality of receiving windows in an odd-even ping-pong arrangement mode in each systematic frame of each cyclic scheduling period.

Optionally, the method further comprises:

responding to the configuration of a terminal network with a measurement interval, judging whether an overlapping time period exists between a set first time period and the time period of the measurement interval, if so, removing the time period corresponding to the overlapping time period in the first time period, so as to completely reserve the time period of the measurement interval.

Optionally, the first time period further includes a plurality of hangover time periods, each hangover time period corresponding to a reception time period of one reception window and being used for characterizing a time period in which data processing of CSI-RS measurements exceeds the reception window; and/or the presence of a gas in the gas,

the first time period further includes a plurality of reserved time periods, each reserved time period corresponding to a reception time period of one reception window and used for characterizing a time period reserved before a next reception window.

Optionally, the step of receiving the CSI-RS signal of the neighbor cell to prepare accelerator online processing for CSI-RS measurement of the neighbor cell includes:

receiving a neighbor CSI-RS signal and caching the neighbor CSI-RS signal to a hardware internal buffer of a measurement accelerator of the mobile terminal so as to prepare accelerator on-line processing for neighbor CSI-RS measurement; and/or the presence of a gas in the gas,

the step of receiving the neighbor cell SSB signal to prepare for accelerator offline processing for neighbor cell SSB measurement includes:

and receiving the adjacent area SSB signal and caching the DDR of the mobile terminal to prepare for accelerator offline processing of the adjacent area SSB measurement.

Optionally, the adjacent cell CSI-RS signal includes a same-frequency adjacent cell CSI-RS signal and a pilot frequency adjacent cell CSI-RS signal; and/or the presence of a gas in the gas,

the neighbor cell SSB signals comprise common-frequency neighbor cell SSB signals and pilot-frequency neighbor cell SSB signals.

Optionally, the mobile terminal comprises an NR terminal.

An apparatus for neighbor cell signal measurement of a mobile terminal, comprising:

the CSI-RS data receiving and configuring module is configured to receive the CSI-RS signal of the adjacent cell to prepare accelerator on-line processing for measuring the CSI-RS of the adjacent cell;

an SSB data receiving configuration module configured to receive an SSB signal of a neighboring cell to prepare for accelerator offline processing for SSB measurement of the neighboring cell;

a measurement accelerator configuration module configured to, in response to a measurement accelerator that shares the same mobile terminal with the neighbor CSI-RS measurement and the neighbor SSB measurement, respectively set a first time period for driving the measurement accelerator to perform the neighbor CSI-RS measurement and a second time period for driving the measurement accelerator to perform the neighbor SSB measurement, so that the measurement accelerator performs the neighbor CSI-RS measurement and the neighbor SSB measurement in a time-sharing manner according to the first time period and the second time period.

Optionally, the measurement accelerator configuration module is configured to:

Optionally, the measurement accelerator configuration module is further configured to:

and judging whether the terminal network is configured with a measurement interval, if so, setting 2 times of a larger period between an interval period and the maximum period of the CSI-RS signal as a cyclic scheduling period, and if not, setting 2 times of the maximum period of the CSI-RS signal as the cyclic scheduling period.

Optionally, the measurement accelerator configuration module is configured to:

Optionally, the CSI-RS data receiving configuration module is configured to receive a CSI-RS signal of a neighboring cell and buffer the CSI-RS signal to a hardware internal buffer of a measurement accelerator of the mobile terminal to prepare accelerator on-line processing for CSI-RS measurement of the neighboring cell; and/or the presence of a gas in the gas,

the SSB data reception configuration module is configured to receive neighbor SSB signals and cache the DDRs to the mobile terminal in preparation for accelerator offline processing for neighbor SSB measurements.

Optionally, the mobile terminal comprises an NR terminal.

An electronic device comprises a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the method for measuring signals in a neighboring area of a mobile terminal.

A computer readable medium having stored thereon computer instructions which, when executed by a processor, implement the steps of the method of neighbor signal measurement of a mobile terminal as described above.

On the basis of the common knowledge in the field, the preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.

The positive progress effects of the invention are as follows:

according to the method and the device for measuring the adjacent cell signals of the mobile terminal, when the surrounding adjacent cells are measured in a mobile terminal service state, the on-line processing of the accelerator for measuring the CSI-RS of the adjacent cells and the off-line processing of the accelerator for measuring the SSB of the adjacent cells are coordinated and orderly scheduled, so that the terminal can regularly and controllably use the same measuring accelerator in a time-sharing manner, the disordered scheduling conflict of hardware resources can be avoided, the mobility requirement of the adjacent cell measurement can be met, the hardware cost is effectively reduced, the chip area is effectively reduced, the chip power consumption is effectively reduced, and better user experience is further provided.

Drawings

The features and advantages of the present disclosure will be better understood upon reading the detailed description of embodiments of the disclosure in conjunction with the following drawings. In the drawings, components are not necessarily drawn to scale, and components having similar relative characteristics or features may have the same or similar reference numerals.

Fig. 1 is a flowchart illustrating a method for measuring a neighbor cell signal of a mobile terminal according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of the starting symbol positions of L and SSB of the SSB case a frequency point < ═ 3 Ghz.

Fig. 3 is a schematic diagram of SSB case a frequency point < L ═ 4 of 3 Ghz.

FIG. 4 is a block diagram of an accelerator in online and offline processing.

Fig. 5 is a diagram illustrating two cyclic scheduling periods for CSI-RS measurement.

Fig. 6 is a schematic diagram of a cyclic scheduling period when a measurement interval is configured for CSI-RS measurement.

Fig. 7 is a diagram of a cyclic scheduling period when overlapping time periods exist for CSI-RS measurements.

FIG. 8 is a schematic diagram of a measurement accelerator processing time period during which SSB data is available.

Fig. 9 is a schematic structural diagram of an apparatus for measuring a neighbor cell signal of a mobile terminal according to another embodiment of the present invention.

Fig. 10 is a schematic structural diagram of an electronic device implementing a method for measuring a neighboring cell signal of a mobile terminal according to another embodiment of the present invention.

Detailed Description

The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.

In order to overcome the above existing drawbacks, this embodiment provides a method for measuring a neighboring cell signal of a mobile terminal, where the method includes: receiving a neighbor CSI-RS signal to prepare for accelerator on-line processing of neighbor CSI-RS measurement, and receiving a neighbor SSB signal to prepare for accelerator off-line processing of neighbor SSB measurement; and responding to a measurement accelerator sharing the same mobile terminal for the adjacent cell CSI-RS measurement and the adjacent cell SSB measurement, and respectively setting a first time period for driving the measurement accelerator to perform the adjacent cell CSI-RS measurement and a second time period for driving the measurement accelerator to perform the adjacent cell SSB measurement, so that the measurement accelerator performs the adjacent cell CSI-RS measurement and the adjacent cell SSB measurement in a time-sharing manner according to the first time period and the second time period.

Preferably, in this embodiment, the mobile terminal is an NR terminal, but the present invention is not limited thereto, and the mobile terminal may be adjusted and selected accordingly according to actual requirements.

In this embodiment, when the peripheral neighboring cell is measured in the mobile terminal service state, the on-line processing of the accelerator for CSI-RS measurement of the neighboring cell and the off-line processing of the accelerator for SSB measurement of the neighboring cell are coordinated and scheduled in order, so that the terminal can use the same measurement accelerator regularly and controllably at different times, which can not only avoid the disordered scheduling conflict of hardware resources, but also meet the mobility requirement of the neighboring cell measurement, thereby effectively reducing the hardware cost, effectively reducing the chip area, effectively reducing the chip power consumption, and further providing better user experience.

Specifically, as shown in fig. 1, as an embodiment, a method for measuring a neighbor cell signal of a mobile terminal is provided, where the method includes the following steps:

step 101, CSI-RS measurement data receiving configuration and SSB measurement data receiving configuration.

Specifically, there are two types of reference signals used by NR terminals for RRM (radio resource management) measurement: SSB and CSI-RS; the serving cell intra-frequency cell measurement and inter-frequency cell measurement are defined as follows (38.300section 9.2.4).

SSB common-frequency measurement in a connected state is divided into ' intra frequency measurements with no measurement GAPs ' without using GAP (GAP) and ' intra frequency measurements with measurement GAPs ' without using GAP (GAP) according to whether SS-BLOCK is in DL BWP (partial bandwidth) '; the CSI common-frequency measurement is necessarily in DL BWP, without using GAP.

In the connected state, measurement gaps are needed for SSB pilot frequency measurement; as long as inter-frequency measurements are initiated, the network will necessarily configure measurement gaps.

Cell measurement signal of NR

The cell measurement of the terminal is carried out by receiving the reference signal of the cell; the NR cell performs measurements based on two completely different reference signals, SS-Block and CSI-RS, respectively; the CSI-RS only exists in a service state, and only SS-Block exists in standby.

·SS/PBCH BLOCK

The fixed bandwidth is 20 RB, the period value is {5,10,20,40,80,160} ms, L SS-blocks (number 0-L-1) in a window with the length of 5ms form 1 SS burst set, wherein the L value is determined by FR (frequency point of a cell); referring to fig. 2, fig. 2 is a schematic diagram of SSB case a (see 38.213, 4.1) frequency points < ═ 3Ghz and the starting symbol (symbol) positions (numbered by 2 slots) of SSB.

·CSI-RS

The NR CSI-RS resource used for mobility measurement has only 1 symbol in the time domain, and the bandwidth of the frequency domain is very wide; the time-frequency domain location of the CSI-RS resource is defined in 38.211Table 7.4.1.5.3-1, where Row1 and Row2 are used for RRM mobility measurements. The CSI-RS for mobility measurement is configured by MeasObjectNR for RRC (radio resource control) signaling, with a bandwidth of at least 24 RBs and a maximum of 264 RBs, and each RB has 1 or 3 REs (density of 1 or 3).

The CSI-RS resources used for mobility measurement are 96 at most under each frequency point (see 38.214, 5.1.6.1.3);

the time and frequency domain positions of the resources are configured independently, and the period value range is {4,5,10,20,40} ms.

Timing relation between service cell and adjacent cell of NR

After the terminal resides in the NR service cell, a local clock (timing) is adjusted to be aligned with a network air interface time sequence; then, synchronizing and measuring adjacent cells based on the time sequence coordinate of the service cell;

the slot boundary of the adjacent cell and the symbol boundary of the reference signal may not be aligned with the serving cell; referring to fig. 3, the lag amount of the slot boundary of the neighboring cell with respect to the slot boundary of the serving cell is offset.

Synchronously detecting each adjacent cell frequency point to obtain the deviation value of the slot boundary of each adjacent cell frequency point relative to the slot boundary of the service cell; and then the measurement frequency points receive data periodically based on the time axis of the serving cell, and the detected cell under the frequency point calculates the position of the self-measurement reference signal according to the deviation value to read the data for measurement.

Window-wise reception of data for NR neighbor measurements

The local clock of the NR terminal is aligned with the serving cell; a serving cell receives downlink data (including measurement) according to a slot, if symbol without useful signals crosses the slot boundary, but common-frequency neighbor cells and pilot-frequency neighbor cells of the serving cell are completely possible, so that if neighbor cell measurement also receives data according to the slot, reference signals of some cells cross the slot boundary without complete data and cannot be measured; some cells may not be feasible with step detection, let alone measurements.

Neighbor measurements require that data be received in windows.

For CSI-RS measurement signals, the time domain position and the period of each resource (resource) under each measurement frequency point are independently configured; for the SSB measurement signal, all the measurement cells under each measurement frequency point are configured with the same SMTC (measurement clock configuration); their actual receive time windows are different.

The CSI-RS and SSB of each frequency point have different measurement bandwidths, so the sampling rates are different, and when the CSI-RS and SSB receive data according to a receiving window, a DFE (decision feedback equalization) outputs the received data with different sampling rates according to different paths; they receive different received data even if they are received simultaneously.

Online and offline processing implementation of cell measurement

A serving cell receives downlink data according to slots, generally needs to be immediately processed, and does not cache DDR (protocol timing constraint under service does not allow it to do so); this is also generally true of the serving cell measurements, referred to herein as on-line processing per slot.

The neighbor cell measurement receives downlink data according to windows, and the common windows are longer than slots and have large data volume, but the measurement is not urgent; in addition, in order to measure accurately, cell measurement needs to be performed with operations such as cell interference elimination, and the same data needs to be read back and forth, so that the neighbor cell measurement data generally needs to be cached on the DDR, and then the software schedules the measurement accelerator to load the data for processing, which is referred to as off-line processing of per-window collection.

Referring to fig. 4, fig. 4 is a schematic diagram of an on-line measurement and off-line measurement process.

The measurement of the service cell and the downlink service data are received together and are scheduled strictly according to the slot, and the situation that the measurement signal crosses the slot boundary does not exist; and when the serving cell is measured, the CE, NE, frequency offset estimation, time offset estimation and other hardware modules of downlink data are multiplexed, so that the measurement accelerator is simple, and various measured values of the serving cell measurement are obtained through online processing.

The measurement of the neighboring cell needs to be scheduled according to a receiving window (for example, 1ms to 5ms of SMTC), and the measurement signal of some cells at the same frequency point may cross the slot boundary, and needs dedicated hardware modules such as CE, NE, frequency offset estimation, time offset estimation, etc., so the inside of the measurement accelerator is relatively complex; in addition, when the interference of some interfering cells needs to be eliminated, a certain block of data in the receiving window needs to be repeatedly processed, so that the received data generally needs to be cached; if caching offline to DDR, then processing can be completely offline.

In this step, a first time period for driving the measurement accelerator to perform the neighbor CSI-RS measurement and a second time period for driving the measurement accelerator to perform the neighbor SSB measurement are respectively set.

Preferably, as an embodiment, the step of respectively setting a first time period for driving the measurement accelerator to perform the neighbor CSI-RS measurement and a second time period for driving the measurement accelerator to perform the neighbor SSB measurement includes:

Specifically, the step of arranging a plurality of receiving windows according to a preset rule in each of the cyclic scheduling periods includes:

In this embodiment, the receiving period of the receiving window is less than or equal to half of the maximum period of the CSI-RS signal.

Preferably, as an embodiment, the step of setting the cyclic scheduling period includes:

Preferably, as an embodiment, the method further includes:

In this embodiment, preferably, as an implementation manner, the first time period further includes a plurality of hangover time periods, each hangover time period corresponds to a reception time period of one reception window, and is used to characterize a time period in which data processing of CSI-RS measurement exceeds the reception window; the first time period further includes a plurality of reserved time periods, each reserved time period corresponding to a reception time period of one reception window and used for characterizing a time period reserved before a next reception window.

The following specifically describes the arrangement of this step.

The embodiment is mainly divided into 5 software modules to realize: setting a time division receiving window and a period of data receiving of a same-frequency adjacent cell CSI-RS, configuring a data receiving and measuring accelerator of the adjacent cell CSI-RS, configuring a data receiving and DDR cache of an adjacent cell SSB, loading DDR data of the adjacent cell SSB and configuring the measuring accelerator, and detecting idle of the measuring accelerator.

Time division receiving window and period setting for data reception of co-frequency neighbor CSI-RS

1. Cyclic scheduling period setting of same-frequency adjacent cell CSI-RS

Referring to fig. 5, first, determining a maximum CSI-RS period max _ CSI _ period of a measurement frequency point; each CSI-RS signal measured by the network configuration is an independent setting period, and the period takes a value of {4,5,10,20,40} ms. In this embodiment, optionally, the period value of 4ms is set to 5ms, so as to facilitate calculation.

MAX _ CSI _ period is MAX { CSI _ period }, and at most 96 CSI-RS measurement signals (i may take values from 0 to 95) are configured for each frequency point.

If 96 CSI-RS signals under the frequency point are uniformly distributed in max _ CSI _ period, 96/max _ CSI _ period CSI-RS signals are contained in each ms, and the most extreme scene is achieved.

Then, it is checked whether the network is configured with measurement gaps, whose period gap _ period value is 40 or 80 ms.

Finally, determining the cycle scheduling period CSI _ pattern _ period of the CSI-RS according to the following mode

If the network configures a measurement gap, csi _ pattern _ period is 2 × MAX { MAX _ csi _ period, gap _ period };

otherwise, csi _ pattern _ period is 2 × max _ csi _ period.

2. Time division receiving window pattern setting of same-frequency adjacent cell CSI-RS

Setting the receiving window of the CSI-RS at each time to be 5ms, and planning according to the following preset rule, wherein a plurality of receiving windows exist in a cycle scheduling period CSI _ pattern _ period.

1) Within 10ms of each NR system frame, 15 ms reception window is arranged, the period csi _ pattern _ period is divided into N windows by 5ms, and csi _ pattern _ period is 5 × N — max _ csi _ period × K.

2) When N is 2, the CSI-RS is received fixedly according to the first 5ms of the system frame, or fixedly received fixedly according to the last 5ms of the system frame, and corresponding selection and adjustment can be performed according to actual requirements.

3) When the N is greater than 2, the reaction solution,

if no measurement gap exists, csi _ pattern _ period is 5 × N, max _ csi _ period × K; then, assuming that the first 5ms of the system frame is used for receiving in the K-th max _ csi _ period, the last 5ms of the system frame is used for receiving in the K + 1-th max _ csi _ period, and K takes the value from 0 to K-1;

if there is a measurement gap or gaps,

a) when max _ csi _ period is equal to gap _ period, csi _ pattern _ period × K is max _ csi _ period × K is gap _ period × K; then, assuming that the first 5ms reception of the system frame is used in the K-th max _ csi _ period, the last 5ms reception of the system frame is used in the K + 1-th max _ csi _ period, where K takes a value of 0 to K-1;

b) when max _ csi _ period is smaller than gap _ period, csi _ pattern _ period is max _ csi _ period × K, and if the K max _ csi _ period is received by using the previous or next 5ms of the system frame, the following determination needs to be made in the K +1 max _ csi _ period:

if the time switch point is also a multiple of gap _ period, then the first or last 5ms reception of the system frame is still used (see FIG. 6); otherwise, using the 5ms reception after or before the system frame;

4) referring to fig. 7, if the receiving window of the above co-frequency CSI-RS overlaps with the measurement gap, the overlapping portion needs to be removed; the measurement gaps are used for receiving the CSI-RS and the SSB of different frequencies; FIG. 7 is a diagram of csi _ pattern _ period when the Gap period is 40ms and max _ csi _ period is also 40 ms.

In this embodiment, the time division receiving window and the period for receiving the data of the CSI-RS in the same-frequency neighboring cell are set only once when the configuration of the same-frequency neighboring cell and the configuration of the measurement gap in the network are issued, and the setting is not reset as long as the two related configurations are not changed.

Data reception and measurement accelerator configuration for neighbor CSI-RS

Receiving CSI-RS data of a same-frequency adjacent region, setting receiving configuration of hardware such as RF (radio frequency), AGC (automatic gain control), DFE (DFE) and the like by software according to the period and the window determined above 1 slot in advance, and meanwhile configuring online processing of a measurement accelerator, wherein when actual data receiving is carried out, the measurement accelerator is directly driven by data to process;

and the CSI-RS data of the pilot frequency adjacent cell is received in the measurement gap, and other configurations are the same as those of the CSI-RS of the same-frequency adjacent cell.

Data reception and DDR cache configuration for neighbor SSB

The data reception of the SSB of the adjacent region of each frequency point is carried out according to the SMTC configuration position, and the data reception of the SSB of the different-frequency adjacent region is in the measurement gap; software generally sets data receiving configuration of hardware such as RF, AGC, DFE and the like 1 slot ahead, and also configures configuration of the SSB data to DDR cache; when actual data receiving is carried out, data are directly written into the DDR, and the information of the buffered data is stored in a form of a queue by software.

DDR data load and measurement accelerator configuration for neighbor SSB

When the measurement accelerator is in an idle state, software checks that data are cached in an SSB information queue which is not processed by a DDR yet, if the queue is not empty, the software acquires SSB data storage information of a first node of the queue, configures hardware to load data from the DDR address to an input buffer of the measurement accelerator, configures SSB parameters of all cells to be measured of the measurement accelerator, drives the measurement accelerator to operate, and outputs a measurement result.

Measure accelerator idle detection

Either SSB signals or CSI-RS signal processing requires the current measurement accelerator to be in an idle state, or a signal processing complete state, which requires software management.

Referring to fig. 8, if the software finds that there is no CSI-RS data reception configuration currently when it receives data 1 slot ahead (corresponding to a reserved time period), then the measurement accelerator detects that it is idle; if the measurement of the neighbor cell SSB needs to be configured at this time, the data receiving and DDR cache configuration of the neighbor cell SSB and the DDR data loading and measurement accelerator configuration of the neighbor cell SSB can be performed simultaneously; otherwise, the method can only be divided into two steps, namely ' data reception and DDR cache configuration of the neighbor SSB ', the method needs to judge whether the measurement accelerator is idle again when the reporting interruption of the accelerator processing result measured by the CSI-RS comes, and then ' DDR data loading and measurement accelerator configuration of the neighbor SSB ' can be realized only when the measurement accelerator is idle ', otherwise, the method can only wait for the reporting interruption of the processing result of the next accelerator. Since NR also has CA, 2 serving cells of PCC and SCC have co-frequency neighboring cells, and one process is completed and reported, since there may be another process.

Referring to fig. 8, at least 5ms is left between the receiving windows of the CSI-RS in each neighboring cell, but data processing is streaked, and processing requires a longer time under 2CC of CA, so that a streaking time period needs to be set according to actual conditions; furthermore, if cell interference cancellation is required, a greater number of IC iterations also means longer measurement accelerator processing time.

In this embodiment, the CSI-RS measurement of the same-frequency neighboring cell uses a 5ms receiving window, and the odd-even ping-pong arrangement of the 5ms receiving window is performed cyclically between the maximum periods of these CSI-RS signals, so that all CSI-RS signals of the same-frequency neighboring cell are received in a time-sharing manner, and the right of use of the measurement accelerator is relinquished to the offline measurement processing of the SSB of the neighboring cell in the time window that comes out at the same time.

In this embodiment, measurement gaps are used for receiving data of CSI-RS measurement and SSB measurement of the inter-frequency neighbor; the data receiving and processing of the SSB measurement of the adjacent regions with the same frequency and different frequency and the data receiving and processing of the CSI-RS adjacent region measurement can be carried out simultaneously all the time, and the received data of the SSB measurement is stored to DDR in an off-line manner; SSB measurements can only be processed if the CSI-RS measurements do not use a measurement accelerator; SSB measurement cannot receive and process data of CSI-RS adjacent measurement of any frequency point in the process of using a measurement accelerator.

And 102, receiving the CSI-RS signal and caching the CSI-RS signal to a buffer inside the hardware, and receiving the SSB signal and caching the SSB signal to the DDR.

In this step, the CSI-RS signal of the neighbor cell is received and buffered to the hardware internal buffer of the measurement accelerator to prepare for accelerator on-line processing for CSI-RS measurement of the neighbor cell, and the SSB signal of the neighbor cell is received and buffered to the DDR of the mobile terminal to prepare for accelerator off-line processing for SSB measurement of the neighbor cell.

In this embodiment, the neighbor CSI-RS signals include a same-frequency neighbor CSI-RS signal and a pilot frequency neighbor CSI-RS signal, and the neighbor SSB signals include a same-frequency neighbor SSB signal and a pilot frequency neighbor SSB signal.

And 103, driving the measurement accelerator in a time-sharing manner according to the set time period to perform adjacent cell CSI-RS measurement and adjacent cell SSB measurement.

In this step, in response to that the adjacent cell CSI-RS measurement and the adjacent cell SSB measurement share the same measurement accelerator, the measurement accelerator is driven to perform the adjacent cell CSI-RS measurement and the adjacent cell SSB measurement in a time-sharing manner according to the first time period and the second time period.

In the method for measuring the neighboring cell signal of the mobile terminal provided by this embodiment, when the measurement of the surrounding neighboring cells is performed in the NR terminal service state, the CSI-RS signal and the SSB signal at the same frequency point support simultaneous data reception, the measurement reception data of the SSB is cached to the DDR offline processing, and the large bandwidth measurement data of the CSI-RS is cached to the buffer online processing inside the hardware, and mainly by software planning of the reception time window of the CSI-RS co-frequency neighboring cell measurement, the accelerator online processing of the neighboring cell CSI-RS measurement and the accelerator offline processing of the neighboring cell SSB measurement are coordinated and scheduled in order, so that the terminal can regularly and controllably use the same measurement accelerator at different times, and not only can ensure that all CSI-RS signals of the co-frequency neighboring cells can be measured effectively, but also ensure that the SSB data cached to the DDR with the same frequency and different frequencies can be processed effectively without data accumulation, therefore, the hardware cost is effectively reduced, the chip area is effectively reduced, the chip power consumption is effectively reduced, and better user experience is provided.

In order to overcome the above existing drawbacks, as shown in fig. 9, this embodiment further provides a device for measuring a neighboring cell signal of a mobile terminal, where the device includes: a CSI-RS data receiving configuration module 21 configured to receive a CSI-RS signal of a neighbor cell to prepare for accelerator on-line processing for CSI-RS measurement of the neighbor cell; an SSB data reception configuration module 22 configured to receive the neighbor SSB signal to prepare an accelerator for performing offline processing of neighbor SSB measurement; a measurement accelerator configuration module 23, configured to, in response to a measurement accelerator that shares the same mobile terminal for the neighbor CSI-RS measurement and the neighbor SSB measurement, respectively set a first time period for driving the measurement accelerator to perform the neighbor CSI-RS measurement and a second time period for driving the measurement accelerator to perform the neighbor SSB measurement, so that the measurement accelerator performs the neighbor CSI-RS measurement and the neighbor SSB measurement in a time-sharing manner according to the first time period and the second time period.

Specifically, as another embodiment, an apparatus for measuring a neighboring cell signal of a mobile terminal is provided, which utilizes the method for measuring a neighboring cell signal of a mobile terminal as described above.

The CSI-RS data receiving configuration module 21 is configured to receive the CSI-RS signal of the neighboring cell and buffer the CSI-RS signal to a hardware internal buffer of a measurement accelerator of the mobile terminal to prepare for accelerator on-line processing for CSI-RS measurement of the neighboring cell.

The SSB data reception configuration module 22 is configured to receive the neighbor SSB signal and buffer the DDR to the mobile terminal in preparation for accelerator offline processing of neighbor SSB measurements.

The measurement accelerator configuration module 23 is configured to: respectively setting a cycle scheduling period and a receiving window for adjacent cell CSI-RS measurement, arranging a plurality of receiving windows according to a preset rule in each cycle scheduling period, and driving the measurement accelerator to carry out the first time period of the adjacent cell CSI-RS measurement to comprise the receiving time periods of the plurality of receiving windows according to the arrangement; setting a time period for driving the measurement accelerator other than the first time period as a second time period for driving the measurement accelerator to perform the neighbor SSB measurement.

Specifically, a plurality of reception windows are arranged in an odd-even ping-pong arrangement within each systematic frame of each of the cyclic scheduling periods.

In this embodiment, the first time period further includes a plurality of tail time periods, each tail time period corresponds to a receiving time period of one receiving window and is used for characterizing a time period in which data processing of CSI-RS measurement exceeds the receiving window; the first time period further includes a plurality of reserved time periods, each reserved time period corresponding to a reception time period of one reception window and used for characterizing a time period reserved before a next reception window.

The measurement accelerator configuration module 23 is further configured to: and judging whether the terminal network is configured with a measurement interval, if so, setting 2 times of a larger period between an interval period and the maximum period of the CSI-RS signal as a cyclic scheduling period, and if not, setting 2 times of the maximum period of the CSI-RS signal as the cyclic scheduling period.

The measurement accelerator configuration module 23 is further configured to: responding to the configuration of a terminal network with a measurement interval, judging whether an overlapping time period exists between a set first time period and the time period of the measurement interval, if so, removing the time period corresponding to the overlapping time period in the first time period, so as to completely reserve the time period of the measurement interval.

In the device for measuring the neighboring cell signal of the mobile terminal provided by this embodiment, when the peripheral neighboring cell is measured in the NR terminal service state, the CSI-RS signal and the SSB signal at the same frequency point support simultaneous data reception, the measurement reception data of the SSB is cached to the DDR offline processing, and the large bandwidth measurement data of the CSI-RS is cached to the buffer online processing inside the hardware, mainly by software planning of the reception time window of the CSI-RS co-frequency neighboring cell measurement, the accelerator online processing of the neighboring cell CSI-RS measurement and the accelerator offline processing of the neighboring cell SSB measurement are coordinated and scheduled in order, so that the terminal can regularly and controllably use the same measurement accelerator at different times, and it is ensured that all CSI-RS signals of the co-frequency neighboring cells can be measured effectively, and the SSB data cached to the DDR at the same frequency and different frequencies can be processed effectively without data accumulation, therefore, the hardware cost is effectively reduced, the chip area is effectively reduced, the chip power consumption is effectively reduced, and better user experience is provided.

Fig. 10 is a schematic structural diagram of an electronic device according to another embodiment of the present invention. The electronic device comprises a memory, a processor and a computer program stored on the memory and operable on the processor, which when executing the program implements the method of neighbor signal measurement of a mobile terminal as in the above embodiments. The electronic device 30 shown in fig. 10 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiment of the present invention.

As shown in fig. 10, the electronic device 30 may be embodied in the form of a general purpose computing device, which may be, for example, a server device. The components of the electronic device 30 may include, but are not limited to: the at least one processor 31, the at least one memory 32, and a bus 33 connecting the various system components (including the memory 32 and the processor 31).

The bus 33 includes a data bus, an address bus, and a control bus.

The memory 32 may include volatile memory, such as Random Access Memory (RAM)321 and/or cache memory 322, and may further include Read Only Memory (ROM) 323.

Memory 32 may also include a program/utility 325 having a set (at least one) of program modules 324, such program modules 324 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which, or some combination thereof, may comprise an implementation of a network environment.

The processor 31 executes various functional applications and data processing, such as the method of neighbor signal measurement of a mobile terminal in the above embodiment of the present invention, by running a computer program stored in the memory 32.

The electronic device 30 may also communicate with one or more external devices 34 (e.g., keyboard, pointing device, etc.). Such communication may be through input/output (I/O) interfaces 35. Also, model-generating device 30 may also communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet) via network adapter 36. As shown in FIG. 10, network adapter 36 communicates with the other modules of model-generated device 30 via bus 33. It should be understood that although not shown in the figures, other hardware and/or software modules may be used in conjunction with the model-generating device 30, including but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID (disk array) systems, tape drives, and data backup storage systems, etc.

It should be noted that although in the above detailed description several units/modules or sub-units/modules of the electronic device are mentioned, such a division is merely exemplary and not mandatory. Indeed, the features and functionality of two or more of the units/modules described above may be embodied in one unit/module according to embodiments of the invention. Conversely, the features and functions of one unit/module described above may be further divided into embodiments by a plurality of units/modules.

The present embodiment also provides a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps in the method for measuring a neighbor cell signal of a mobile terminal as in the above embodiments.

More specific examples, among others, that the readable storage medium may employ may include, but are not limited to: a portable disk, a hard disk, random access memory, read only memory, erasable programmable read only memory, optical storage device, magnetic storage device, or any suitable combination of the foregoing.

In a possible embodiment, the present invention may also be implemented in the form of a program product including program code for causing a terminal device to perform the steps in the method for implementing the neighbor cell signal measurement of a mobile terminal as in the above embodiments, when the program product is run on the terminal device.

Where program code for carrying out the invention is written in any combination of one or more programming languages, the program code may execute entirely on the user device, partly on the user device, as a stand-alone software package, partly on the user device and partly on a remote device or entirely on the remote device.

While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.

Claims

1. A method for measuring adjacent area signals of a mobile terminal is characterized by comprising the following steps:

receiving a neighbor CSI-RS signal to prepare for accelerator on-line processing of neighbor CSI-RS measurement, and receiving a neighbor SSB signal to prepare for accelerator off-line processing of neighbor SSB measurement; and the number of the first and second groups,

2. The method of claim 1, wherein the step of separately setting a first time period for driving the measurement accelerator to perform the neighbor CSI-RS measurement and a second time period for driving the measurement accelerator to perform the neighbor SSB measurement comprises:

3. The method of claim 2, wherein a receive time period of the receive window is less than or equal to half of a maximum periodicity of a CSI-RS signal.

4. The method of claim 2, wherein the step of setting the cyclic scheduling period comprises:

5. The method as claimed in claim 2, wherein said step of arranging a plurality of receiving windows according to a predetermined rule in each of said cyclic scheduling periods comprises:

6. The method of claim 2, further comprising:

7. The method of claim 2, wherein the first time period further comprises a plurality of hangover time periods, each hangover time period corresponding to a receive time period of one receive window and being used to characterize a time period during which data processing of CSI-RS measurements exceeds the receive window; and/or the presence of a gas in the gas,

8. The method of claim 1, wherein the step of receiving the neighbor CSI-RS signal in preparation for accelerator on-line processing of neighbor CSI-RS measurements comprises:

9. The method of claim 1, wherein the neighbor CSI-RS signals comprise co-frequency neighbor CSI-RS signals and inter-frequency neighbor CSI-RS signals; and/or the presence of a gas in the gas,

10. The method according to any of claims 1-9, wherein the mobile terminal comprises an NR terminal.

11. An apparatus for measuring a neighbor cell signal of a mobile terminal, comprising:

12. The apparatus of claim 11, wherein the measurement accelerator configuration module is configured to:

13. The apparatus of claim 12, wherein a receive time period of the receive window is less than or equal to half of a maximum period of a CSI-RS signal.

14. The apparatus of claim 12, wherein the measurement accelerator configuration module is further configured to:

15. The apparatus of claim 12, wherein the measurement accelerator configuration module is configured to:

16. The apparatus of claim 12, wherein the measurement accelerator configuration module is further configured to:

17. The apparatus of claim 12, wherein the first time period further comprises a plurality of hangover time periods, each hangover time period corresponding to a receive time period of one receive window and being used to characterize a time period during which data processing of CSI-RS measurements exceeds the receive window; and/or the presence of a gas in the gas,

18. The apparatus of claim 11, wherein the CSI-RS data reception configuration module is configured to receive neighbor CSI-RS signals and buffer to a hardware internal buffer of a measurement accelerator of the mobile terminal in preparation for accelerator on-line processing for neighbor CSI-RS measurements; and/or the presence of a gas in the gas,

19. The apparatus of claim 11, wherein the neighbor CSI-RS signals comprise intra-frequency neighbor CSI-RS signals and inter-frequency neighbor CSI-RS signals; and/or the presence of a gas in the gas,

20. An apparatus according to any of claims 11 to 19, wherein the mobile terminal comprises an NR terminal.

21. An electronic device comprising a memory, a processor and a computer program stored on the memory and being executable on the processor, wherein the processor, when executing the computer program, performs the steps of the method for neighbor signal measurement of a mobile terminal according to any of claims 1 to 10.

22. A computer readable medium having stored thereon computer instructions, characterized in that the computer instructions, when executed by a processor, implement the steps of the method of neighbor signal measurement for a mobile terminal according to any of claims 1-10.