CN108271185B - Uplink pilot frequency measurement method and device - Google Patents

Abstract

The present invention provides an uplink inter-frequency measurement method and device. The method includes: receiving uplink inter-frequency measurement indication information that is sent by a serving cell of a terminal and carries operating frequency point information of an inter-frequency adjacent cell of the terminal; according to the uplink inter-frequency measurement indication information; Inter-frequency measurement indication information, the terminal disconnects the connection with the serving cell within the determined target transmission interval, and modulates the frequency to the working frequency of the inter-frequency adjacent cell, and sends the uplink reference symbol to the inter-frequency adjacent cell, so that all The inter-frequency adjacent cell performs uplink inter-frequency measurement according to the uplink reference symbol, and reports the uplink inter-frequency measurement result to the serving cell; the measurement burden on the terminal side is reduced, and the power consumption of the terminal is reduced.

Description

A kind of uplink inter-frequency measurement method and device

technical field

The present invention relates to the technical field of wireless communication, in particular to an uplink inter-frequency measurement method and device.

Background technique

In the prior art, inter-frequency measurement is only performed on the terminal side, and the network configures the terminal measurement gap type (measurement gap type). Among them, there are two types of measurement time slots in LTE for long term evolution. According to the measurement interval type, the terminal connects to the current serving frequency point within the interval gap, including interrupting the transmission and reception of data services with the serving cell and possible intra-frequency measurement, and tunes to the frequency to be measured for inter-frequency measurement.

Due to the design of downlink reference symbols, there are few reference symbol transmission patterns (time-frequency resource locations), and it is very likely that several cells use the same or similar time-frequency resources for transmission, which will interfere with downlink measurements. At the same time, considering the purpose of reducing the measurement burden on the terminal side and reducing the power consumption of the terminal, uplink measurement is also a feasible mobility management solution. However, in the prior art, since the inter-frequency adjacent cell is different from the current operating frequency of the terminal, the adjacent cell cannot receive the uplink reference symbol sent by the target terminal, and thus cannot perform uplink measurement.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an uplink inter-frequency measurement method and device, which solves the problem that uplink inter-frequency measurement cannot be performed in the prior art.

In order to achieve the above purpose, an embodiment of the present invention provides an uplink inter-frequency measurement method, which is applied to the terminal side, including:

receiving uplink inter-frequency measurement indication information that is sent by the serving cell of the terminal and carries the operating frequency point information of the inter-frequency adjacent cell of the terminal;

According to the uplink inter-frequency measurement indication information, within the determined target transmission interval, the terminal disconnects the connection with the serving cell, modulates the frequency to the working frequency of the inter-frequency adjacent cell, and sends the uplink reference to the inter-frequency adjacent cell symbol, so that the inter-frequency adjacent cell performs uplink inter-frequency measurement according to the uplink reference symbol and reports the uplink inter-frequency measurement result to the serving cell.

The step of receiving uplink inter-frequency measurement indication information sent by the serving cell of the terminal includes:

When the uplink quality of the serving cell is lower than a measurement threshold, the uplink inter-frequency measurement indication information sent by the serving cell of the terminal is received.

Wherein, the steps of determining the target sending interval include:

The terminal determines the information of the target sending interval or the terminal receives the information of the target sending interval configured by the serving cell; wherein the information of the target sending interval includes the period of the target sending interval and the length of the target sending interval.

Wherein, after the terminal determines the information of the target sending interval, the method further includes:

The information of the target sending interval is reported to the serving cell of the terminal.

Wherein, the uplink inter-frequency measurement indication information also carries the frequency point sequence for sending uplink reference symbols.

Wherein, according to the uplink inter-frequency measurement indication information, the terminal disconnects the connection with the serving cell within the determined target transmission interval, and modulates the frequency to the working frequency point of the inter-frequency adjacent cell, and transmits to the inter-frequency adjacent cell The steps of uplink reference symbols include:

According to the uplink inter-frequency measurement indication information, the terminal disconnects the connection with the serving cell within the determined target transmission interval, and in the target transmission interval, frequency tunes to different frequency points in sequence according to the order of the frequency points for transmitting the uplink reference symbols. On the working frequency point of the inter-frequency adjacent cell, the uplink reference symbol is sent to the inter-frequency adjacent cell.

The embodiment of the present invention also provides an uplink inter-frequency measurement method, which is applied to the inter-frequency adjacent cell side, including:

receiving the uplink inter-frequency measurement start information that is sent by the serving cell of the terminal and carries the identification information of the target terminal and the transmission information of the uplink reference symbol of the target terminal;

According to the identification information of the target terminal and the transmission information of the uplink reference symbols of the target terminal, determine the transmission time-frequency resources of the target terminal and the uplink reference symbols of the target terminal;

Receive the uplink reference symbol sent by the target terminal on the determined time-frequency resource for sending the uplink reference symbol;

Perform uplink inter-frequency measurement according to the uplink reference symbols, and report the uplink inter-frequency measurement result to the serving cell.

The step of receiving the uplink inter-frequency measurement start information sent by the serving cell of the terminal includes:

When the uplink quality of the serving cell is lower than a measurement threshold, the uplink inter-frequency measurement start information sent by the serving cell of the terminal is received.

Wherein, the uplink inter-frequency measurement start information also carries the sequence of frequency points for sending uplink reference symbols.

Wherein, the step of receiving the uplink reference symbols sent by the target terminal on the determined time-frequency resources for sending uplink reference symbols includes:

Determine the target time for the target terminal to send the uplink reference symbols on the same frequency as the working frequency of the inter-frequency adjacent cell according to the sequence of the frequency points for sending the uplink reference symbols, and determine the target time for sending the uplink reference symbols in the target The uplink reference symbol sent by the target terminal is received on the working frequency point of the zone.

An embodiment of the present invention further provides an uplink inter-frequency measurement method, which is applied to a serving cell, including:

When it is determined to start the uplink inter-frequency measurement, the uplink inter-frequency measurement indication information carrying the working frequency point information of the inter-frequency adjacent area of the terminal is sent to the target terminal, so that the target terminal interrupts the terminal and the target terminal within the determined target transmission interval. the connection of the serving cell, and frequency modulation to the operating frequency point of the inter-frequency adjacent cell, and sending uplink reference symbols to the inter-frequency adjacent cell;

Send the uplink inter-frequency measurement start information carrying the identification information of the target terminal and the transmission information of the uplink reference symbol of the target terminal to the inter-frequency adjacent cell, so that the inter-frequency adjacent cell receives the transmission time-frequency resource of the determined uplink reference symbol. The uplink reference symbols sent by the target terminal and perform uplink inter-frequency measurement according to the uplink reference symbols.

Wherein, after the uplink inter-frequency measurement start information carrying the identification information of the target terminal and the transmission information of the uplink reference symbol of the target terminal is sent to the inter-frequency adjacent cell, the method further includes:

Receive the uplink inter-frequency measurement result fed back by the inter-frequency adjacent cell, and perform network coverage evaluation according to the measurement result.

Wherein, the step of determining to start the uplink inter-frequency measurement includes:

Perform uplink measurement on the target terminal to determine the uplink quality of the serving cell;

When the uplink quality is lower than a measurement threshold, it is determined to start the uplink inter-frequency measurement.

Wherein, when the information of the target transmission interval is determined by the target terminal, after the target terminal determines the information of the target transmission interval, the method further includes:

Receive the information reported by the target terminal that the target terminal determines the target sending interval; wherein, the information about the target sending interval includes the period of the target sending interval and the length of the target sending interval.

Wherein, the step of sending the uplink inter-frequency measurement start information carrying the identification information of the target terminal and the transmission information of the uplink reference symbol of the target terminal to the inter-frequency adjacent cell includes:

Determine the transmission information of the uplink reference symbols of the target terminal according to the information of the determined target transmission interval; wherein, the transmission information of the uplink reference symbols includes the transmission time-frequency resources of the uplink reference symbols and the transmission period of the uplink reference symbols;

The uplink inter-frequency measurement start information carrying the identification information of the target terminal and the transmission information of the uplink reference symbols of the target terminal is sent to the inter-frequency adjacent cell.

Wherein, the uplink inter-frequency measurement indication information also carries the frequency point sequence for sending uplink reference symbols, so that the target terminal terminates the connection with the serving cell within the determined target sending interval, and within the target sending interval According to the sequence of the frequency points for sending the uplink reference symbols, the frequency is tuned to different working frequency points of the adjacent cells with different frequencies, and the uplink reference symbols are sent to the adjacent cells with different frequencies.

The uplink inter-frequency measurement start information also carries the frequency sequence of the uplink reference symbols sent by the target terminal, so that the inter-frequency neighbor cell determines that the target terminal is in the same frequency as the inter-frequency neighbor according to the frequency sequence of the uplink reference symbols sent by the target terminal. The target time for sending uplink reference symbols on the same frequency as the working frequency of the zone, and the uplink reference symbols sent by the target terminal are received on the working frequency of the inter-frequency adjacent zone within the target time.

The embodiment of the present invention also provides an uplink inter-frequency measurement device, which is applied to the terminal side and includes:

a receiving module, configured to receive uplink inter-frequency measurement indication information that is sent by the serving cell of the terminal and carries the operating frequency point information of the inter-frequency adjacent cell of the terminal;

The symbol sending module is used for, according to the uplink inter-frequency measurement indication information, the terminal disconnects the connection with the serving cell within the determined target transmission interval, and modulates the frequency to the working frequency point of the inter-frequency adjacent cell, and sends the signal to the inter-frequency adjacent cell. The adjacent frequency cell sends an uplink reference symbol, so that the inter-frequency adjacent cell performs uplink inter-frequency measurement according to the uplink reference symbol and reports the uplink inter-frequency measurement result to the serving cell.

Wherein, the receiving module includes:

The receiving submodule is configured to receive uplink inter-frequency measurement indication information sent by the serving cell of the terminal when the uplink quality of the serving cell is lower than a measurement threshold.

Wherein, the device also includes:

The interval determination module is used for the terminal to determine the information of the target transmission interval or the terminal to receive the information of the target transmission interval configured by the serving cell; wherein the information of the target transmission interval includes the period of the target transmission interval and the length of the target transmission interval.

Wherein, the device also includes:

A reporting module, configured to report the information of the target sending interval to the serving cell of the terminal.

Wherein, the uplink inter-frequency measurement indication information also carries the frequency point sequence for sending uplink reference symbols.

Wherein, the symbol sending module includes:

The symbol sending submodule is configured to, according to the uplink inter-frequency measurement indication information, disconnect the terminal from the connection with the serving cell within the determined target sending interval, and send the uplink reference symbol according to the frequency within the target sending interval. The frequency is sequentially tuned to the working frequency points of different inter-frequency adjacent cells, and uplink reference symbols are sent to the inter-frequency adjacent cells.

The embodiment of the present invention also provides an uplink inter-frequency measurement device, which is applied to the inter-frequency adjacent cell side, including:

an information receiving module, configured to receive uplink inter-frequency measurement start information that is sent by the serving cell of the terminal and carries the identification information of the target terminal and the transmission information of the uplink reference symbol of the target terminal;

a determining module, configured to determine the time-frequency resources for transmitting the target terminal and the uplink reference symbols of the target terminal according to the identification information of the target terminal and the transmission information of the uplink reference symbols of the target terminal;

a symbol receiving module, configured to receive the uplink reference symbols sent by the target terminal on the determined transmission time-frequency resources of the uplink reference symbols;

A measurement module, configured to perform uplink inter-frequency measurement according to the uplink reference symbol, and report the uplink inter-frequency measurement result to the serving cell.

Wherein, the information receiving module includes:

The information receiving sub-module is configured to receive uplink inter-frequency measurement start information sent by the serving cell of the terminal when the uplink quality of the serving cell is lower than a measurement threshold.

Wherein, the uplink inter-frequency measurement start information also carries the sequence of frequency points for sending uplink reference symbols.

Wherein, the symbol receiving module includes:

The symbol receiving sub-module is used to determine the target time for the target terminal to send the uplink reference symbols on the same frequency as the working frequency of the inter-frequency adjacent cell according to the frequency sequence of sending the uplink reference symbols, and the target time The uplink reference symbols sent by the target terminal are received on the working frequency points of the inter-frequency adjacent cells within the system.

The present invention also provides an uplink inter-frequency measurement device in real time, which is applied to a serving cell, and is characterized in that it includes:

The first sending module is configured to send, to the target terminal, the uplink inter-frequency measurement indication information carrying the operating frequency point information of the inter-frequency adjacent area of the terminal when it is determined that the uplink inter-frequency measurement is started, so that the target terminal is in the determined target terminal. During the transmission interval, the terminal disconnects the connection with the serving cell, modulates the frequency to the working frequency of the inter-frequency adjacent cell, and sends an uplink reference symbol to the inter-frequency adjacent cell;

The second sending module is configured to send the uplink inter-frequency measurement start information carrying the identification information of the target terminal and the transmission information of the uplink reference symbol of the target terminal to the inter-frequency adjacent cell, so that the inter-frequency adjacent cell is in the determined uplink reference symbol. The uplink reference symbols sent by the target terminal are received on the transmission time-frequency resources of the target terminal, and uplink inter-frequency measurement is performed according to the uplink reference symbols.

Wherein, the device also includes:

An evaluation module, configured to receive the uplink inter-frequency measurement result fed back by the inter-frequency neighbor cell, and perform network coverage assessment according to the measurement result.

Wherein, the device also includes:

a measurement module, configured to perform uplink measurement on the target terminal to determine the uplink quality of the serving cell;

A determining start module is configured to determine to start the uplink inter-frequency measurement when the uplink quality is lower than a measurement threshold value.

Wherein, the device also includes:

The interval information receiving module is configured to receive the information of the target sending interval determined by the target terminal reported by the target terminal; wherein the information of the target sending interval includes the period of the target sending interval and the length of the target sending interval.

Wherein, the second sending module includes:

The transmission determination submodule is configured to determine the transmission information of the uplink reference symbols of the target terminal according to the information of the determined target transmission interval; wherein the transmission information of the uplink reference symbols includes the transmission time-frequency resources of the uplink reference symbols and the transmission time-frequency resources of the uplink reference symbols. send cycle;

The sending submodule is configured to send the uplink inter-frequency measurement start information carrying the identification information of the target terminal and the transmission information of the uplink reference symbol of the target terminal to the inter-frequency adjacent cell.

Wherein, the uplink inter-frequency measurement indication information also carries the frequency point sequence for sending uplink reference symbols, so that the target terminal terminates the connection with the serving cell within the determined target sending interval, and within the target sending interval According to the sequence of the frequency points for sending the uplink reference symbols, the frequency is tuned to different working frequency points of the adjacent cells with different frequencies, and the uplink reference symbols are sent to the adjacent cells with different frequencies.

The uplink inter-frequency measurement start information also carries the frequency sequence of the uplink reference symbols sent by the target terminal, so that the inter-frequency neighbor cell determines that the target terminal is in the same frequency as the inter-frequency neighbor according to the frequency sequence of the uplink reference symbols sent by the target terminal. The target time for sending uplink reference symbols on the same frequency as the working frequency of the zone, and the uplink reference symbols sent by the target terminal are received on the working frequency of the inter-frequency adjacent zone within the target time.

The above-mentioned technical scheme of the present invention has at least the following beneficial effects:

In the uplink inter-frequency measurement method and device according to the embodiments of the present invention, by introducing a target transmission interval, the terminal disconnects the connection with the serving cell within the target transmission interval, and tunes the frequency to the working frequency of the inter-frequency adjacent cell, and sends the The inter-frequency adjacent cell sends an uplink reference symbol; correspondingly, the inter-frequency adjacent cell can receive the uplink reference symbol sent by the terminal, perform uplink inter-frequency measurement according to the uplink reference symbol, and report the uplink inter-frequency measurement result to the service In the cell, the serving cell performs network coverage evaluation according to the measurement results; the method of uplink inter-frequency measurement reduces the measurement burden on the terminal side and reduces the power consumption of the terminal.

Description of drawings

FIG. 1 shows a flow chart of steps of a method for uplink inter-frequency measurement on a terminal side provided by a first embodiment of the present invention;

FIG. 2 shows a flowchart of steps of an uplink inter-frequency measurement method on an inter-frequency adjacent cell side provided by a second embodiment of the present invention;

FIG. 3 is a flowchart showing the steps of the uplink inter-frequency measurement method on the serving cell side provided by the third embodiment of the present invention;

4 shows a specific application flowchart of the uplink inter-frequency measurement method provided by an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of an uplink inter-frequency measurement device on a terminal side provided by a fourth embodiment of the present invention;

FIG. 6 is a schematic structural diagram of an uplink inter-frequency measurement device on an inter-frequency adjacent cell side provided by a fifth embodiment of the present invention;

FIG. 7 shows a schematic structural diagram of an uplink inter-frequency device on the serving cell side provided by the sixth embodiment of the present invention.

Detailed ways

In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, the following will be described in detail with reference to the accompanying drawings and specific embodiments.

first embodiment

As shown in FIG. 1, the first embodiment of the present invention provides an uplink inter-frequency measurement method, which is applied to the terminal side, including:

Step 11: Receive uplink inter-frequency measurement indication information that is sent by the serving cell of the terminal and carries information about the operating frequency points of the inter-frequency adjacent cells of the terminal.

It should be noted that, in this embodiment of the present invention, if the terminal has performed downlink inter-frequency measurement before, the uplink inter-frequency measurement indication information may not carry the operating frequency point information of the inter-frequency adjacent cell. Because the network side has delivered the downlink measurement neighbor cell list before performing the inter-frequency measurement, the terminal side can reuse the previous downlink measurement neighbor cell list in this embodiment of the present invention. If the terminal has not performed downlink inter-frequency measurement before, the uplink inter-frequency measurement indication information must carry the working frequency point information of the inter-frequency adjacent cell.

Step 12, according to the uplink inter-frequency measurement indication information, within the determined target transmission interval, the terminal disconnects the connection with the serving cell, and modulates the frequency to the working frequency of the inter-frequency adjacent cell, and sends the data to the inter-frequency adjacent cell. Sending an uplink reference symbol, so that the inter-frequency neighbor cell performs uplink inter-frequency measurement according to the uplink reference symbol and reports the uplink inter-frequency measurement result to the serving cell.

It should be noted that the above-mentioned interruption of the connection with the serving cell specifically refers to the transmission of uplink data of the terminal, the reception of downlink data, and all possible downlink measurements on the current operating frequency of the terminal. And within the time length of the target transmission interval, the terminal can at least complete frequency modulation to the working frequency point of the inter-frequency adjacent cell and send the uplink reference symbol.

Specifically, step 11 in the first embodiment of the present invention includes:

Step 111: When the uplink quality of the serving cell is lower than a measurement threshold, receive uplink inter-frequency measurement indication information sent by the serving cell of the terminal.

The first embodiment of the present invention introduces an enabling threshold for uplink inter-frequency measurement. When the uplink quality of the serving cell is lower than the measurement threshold, the serving cell notifies the terminal and the terminal's inter-frequency neighbors to enable uplink inter-frequency measurement through signaling.

Further, the step of determining the target transmission interval in the first embodiment of the present invention includes:

Step 13: The terminal determines the information of the target transmission interval or the terminal receives the information of the target transmission interval configured by the serving cell; wherein the information of the target transmission interval includes the period of the target transmission interval and the length of the target transmission interval.

In the first embodiment of the present invention, the information of the target sending interval may be determined by the terminal itself, or may be sent to the terminal after the serving cell is determined; it should be noted that when the information of the target sending interval is configured by the serving cell, The uplink inter-frequency measurement indication information may be issued to the terminal, that is, the uplink inter-frequency measurement indication information may carry the information of the target transmission interval.

Specifically, after the terminal determines the information of the target sending interval, the method further includes:

Step 14, reporting the information of the target sending interval to the serving cell of the terminal. Then the serving cell can know the information of the target transmission interval of the terminal, and can determine the time-frequency resources of the terminal to send the uplink reference symbols according to the information of the target transmission interval, so that the time-frequency resources of the uplink reference symbols can be notified to the inter-frequency neighbors, which is convenient for The inter-frequency adjacent cells receive uplink reference symbols on corresponding time-frequency resources.

Further, in the first embodiment of the present invention, the uplink inter-frequency measurement indication information also carries a frequency point sequence for sending uplink reference symbols. For example, the terminal sequentially modulates the frequency to the corresponding frequency points in the order of f1, f2, f3 . . . to send the uplink reference symbols.

Since the terminal can have multiple inter-frequency adjacent cells, when the serving cell notifies the inter-frequency adjacent cells, it informs each inter-frequency adjacent cell, on which time-frequency resources the terminal will send uplink reference symbols, but does not know these time-frequency resources. The inter-frequency adjacent cells monitor uplink reference symbols on each time-frequency resource, resulting in a waste of power and resources in the inter-frequency adjacent cells. After introducing the sequence of frequency points for sending uplink reference symbols, step 12 includes:

Step 121: According to the uplink inter-frequency measurement indication information, the terminal disconnects the connection with the serving cell within the determined target transmission interval, and in the target transmission interval, the frequency is adjusted in sequence according to the order of the frequency points for transmitting the uplink reference symbols. Go to the working frequency points of different inter-frequency adjacent cells, and send uplink reference symbols to the inter-frequency adjacent cells.

That is, the terminal tunes the frequency to the working frequency points of different inter-frequency adjacent cells at one time according to the frequency point sequence, and sends uplink reference symbols to the inter-frequency adjacent cells; correspondingly, informs the frequency sequence of the uplink reference symbols to the inter-frequency adjacent cells. , the inter-frequency adjacent cell can clearly determine when to receive the uplink reference symbol of the terminal, and it is not necessary to monitor the terminal signal when the terminal sends the uplink reference symbol on the frequency point, which helps to improve the system efficiency.

To sum up, in the first embodiment of the present invention, in order to configure the uplink inter-frequency measurement, the terminal needs to disconnect the connection with the serving cell within the determined target transmission interval, and tune the frequency to the inter-frequency adjacent cell. On the frequency point, the uplink reference symbol is sent to the inter-frequency adjacent cell, so that the inter-frequency adjacent cell performs uplink inter-frequency measurement according to the uplink reference symbol and reports the uplink inter-frequency measurement result to the serving cell, reducing the The measurement burden on the terminal side is reduced, and the power consumption of the terminal is reduced.

Second Embodiment

As shown in FIG. 2 , a second embodiment of the present invention provides a line inter-frequency measurement method, which is applied to the inter-frequency adjacent cell side, including:

Step 21: Receive uplink inter-frequency measurement start information that is sent by the serving cell of the terminal and carries the identification information of the target terminal and the transmission information of uplink reference symbols of the target terminal.

It should be noted that the above-mentioned transmission information of the uplink reference symbols of the target terminal includes: the transmission time-frequency resources of the uplink reference symbols; if the uplink reference symbols are sent periodically, the transmission information also includes: the transmission period of the uplink reference symbols.

Step 22, according to the identification information of the target terminal and the transmission information of the uplink reference symbols of the target terminal, determine the transmission time-frequency resources of the target terminal and the uplink reference symbols of the target terminal;

Step 23, receiving the uplink reference symbol sent by the target terminal on the determined time-frequency resource for sending the uplink reference symbol;

Step 24: Perform uplink inter-frequency measurement according to the uplink reference symbols, and report the uplink inter-frequency measurement result to the serving cell.

Specifically, step 21 in the second embodiment of the present invention includes:

Step 211, when the uplink quality of the serving cell is lower than a measurement threshold, receive uplink inter-frequency measurement start information sent by the serving cell of the terminal.

The second embodiment of the present invention introduces an enabling threshold for uplink inter-frequency measurement. When the uplink quality of the serving cell is lower than the measurement threshold, the serving cell notifies the terminal and the terminal's inter-frequency neighbors to enable uplink inter-frequency measurement through signaling.

Further, in the second embodiment of the present invention, the uplink inter-frequency measurement start information also carries the sequence of frequency points for sending uplink reference symbols. For example, the terminal sequentially modulates the frequency to the corresponding frequency points in the order of f1, f2, f3 . . . to send the uplink reference symbols.

Since the terminal can have multiple inter-frequency adjacent cells, when the serving cell notifies the inter-frequency adjacent cells, it informs each inter-frequency adjacent cell, on which time-frequency resources the terminal will send uplink reference symbols, but does not know these time-frequency resources. The inter-frequency adjacent cells monitor uplink reference symbols on each time-frequency resource, resulting in a waste of power and resources in the inter-frequency adjacent cells. After introducing the sequence of frequency points for sending uplink reference symbols, step 23 includes:

Step 231: Determine the target time for the target terminal to send the uplink reference symbols on the same frequency as the working frequency of the inter-frequency adjacent cell according to the order of the frequency points for sending the uplink reference symbols, and determine the target time for sending the uplink reference symbols within the target time. The uplink reference symbol sent by the target terminal is received on the working frequency point of the inter-frequency adjacent cell.

That is, the terminal tunes the frequency to the working frequency points of different inter-frequency adjacent cells at one time according to the frequency point sequence, and sends uplink reference symbols to the inter-frequency adjacent cells; correspondingly, informs the frequency sequence of the uplink reference symbols to the inter-frequency adjacent cells. , the inter-frequency adjacent cell can clearly determine when to receive the uplink reference symbol of the terminal, and it is not necessary to monitor the terminal signal when the terminal sends the uplink reference symbol on the frequency point, which helps to improve the system efficiency.

To sum up, in the second real time of the present invention, the inter-frequency adjacent cell side performs uplink inter-frequency measurement, and the information provided by the inter-frequency adjacent cell in the serving cell receives the uplink measurement symbol on the corresponding time-frequency resource where the terminal sends the uplink measurement symbol. , and perform uplink inter-frequency measurement according to the uplink measurement symbol, and report the uplink inter-frequency measurement result to the serving cell, which reduces the measurement burden on the terminal side and reduces the power consumption of the terminal.

Third Embodiment

As shown in FIG. 3 , a third embodiment of the present invention provides an uplink inter-frequency measurement method, which is applied to a serving cell, including:

Step 31: When it is determined to start the uplink inter-frequency measurement, send the uplink inter-frequency measurement indication information carrying the working frequency point information of the inter-frequency adjacent area of the terminal to the target terminal, so that the target terminal is within the determined target sending interval. The connection with the serving cell is interrupted, and the frequency is tuned to the working frequency of the inter-frequency adjacent cell, and an uplink reference symbol is sent to the inter-frequency adjacent cell.

It should be noted that, in this embodiment of the present invention, if the terminal has performed downlink inter-frequency measurement before, the uplink inter-frequency measurement indication information may not carry the operating frequency point information of the inter-frequency adjacent cell. Because the network side has delivered the downlink measurement neighbor cell list before performing the inter-frequency measurement, the terminal side can reuse the previous downlink measurement neighbor cell list in this embodiment of the present invention. If the terminal has not performed downlink inter-frequency measurement before, the uplink inter-frequency measurement indication information must carry the working frequency point information of the inter-frequency adjacent cell.

Step 32: Send the uplink inter-frequency measurement start information carrying the identification information of the target terminal and the transmission information of the uplink reference symbol of the target terminal to the inter-frequency adjacent cell, so that the inter-frequency adjacent cell is in the determined transmission time-frequency of the uplink reference symbol. The uplink reference symbols sent by the target terminal are received on the resource, and uplink inter-frequency measurement is performed according to the uplink reference symbols.

It should be noted that the above-mentioned transmission information of the uplink reference symbols of the target terminal includes: the transmission time-frequency resources of the uplink reference symbols; if the uplink reference symbols are sent periodically, the transmission information also includes: the transmission period of the uplink reference symbols.

Further, in the third embodiment of the present invention, the method further includes:

Step 35: Receive the uplink inter-frequency measurement result fed back by the inter-frequency neighboring cell, and perform network coverage evaluation according to the measurement result. That is, the serving cell receives the uplink measurement results fed back by the inter-frequency neighbor cells within a certain time window, and implements network evaluation according to the uplink measurement results.

Specifically, the step of determining to start the uplink inter-frequency measurement includes:

Perform uplink measurement on the target terminal to determine the uplink quality of the serving cell;

When the uplink quality is lower than a measurement threshold, it is determined to start the uplink inter-frequency measurement.

The third embodiment of the present invention introduces an activation threshold for uplink inter-frequency measurement. When the uplink quality of the serving cell is lower than the measurement threshold, it is determined to start the uplink inter-frequency measurement, and the serving cell notifies the terminal and the terminal of the inter-frequency measurement through signaling. The adjacent cell enables uplink inter-frequency measurement.

Further, when the information of the target transmission interval is determined by the target terminal, after the target terminal determines the information of the target transmission interval, the method further includes:

Step 36: Receive information reported by the target terminal that the target terminal determines the target transmission interval; wherein the information of the target transmission interval includes the period of the target transmission interval and the length of the target transmission interval.

In the third embodiment of the present invention, the information of the target transmission interval may be determined by the terminal itself, or may be transmitted to the terminal after the serving cell is determined; it should be noted that when the information of the target transmission interval is determined by the terminal itself, The terminal needs to report the information of the target sending interval to the serving cell.

Specifically, step 32 includes:

Step 321: Determine the transmission information of the uplink reference symbols of the target terminal according to the determined information of the target transmission interval; wherein the transmission information of the uplink reference symbols includes the transmission time-frequency resources of the uplink reference symbols and the transmission period of the uplink reference symbols.

In the third embodiment of the present invention, the information of the target transmission interval may be determined by the terminal itself, or may be determined by the serving cell. No matter who determines the target transmission interval, the serving cell can determine the transmission information of the uplink reference symbols of the target terminal according to the information of the target transmission interval and the frequency point information of the inter-frequency adjacent cell.

Step 322: Send the uplink inter-frequency measurement start information carrying the identification information of the target terminal and the transmission information of the uplink reference symbol of the target terminal to the inter-frequency adjacent cell.

Specifically, the uplink inter-frequency measurement indication information also carries the frequency point sequence for sending uplink reference symbols, so that the target terminal terminates the connection with the serving cell within the determined target sending interval, and the target terminal terminates the connection with the serving cell within the target sending interval. The frequency is adjusted to the working frequency points of different inter-frequency adjacent cells in sequence according to the sequence of the frequency points for sending the uplink reference symbols, and the uplink reference symbols are sent to the inter-frequency adjacent cells.

Specifically, the uplink inter-frequency measurement start information also carries the frequency sequence of the uplink reference symbols sent by the target terminal, so that the inter-frequency neighbor cell determines that the target terminal is on an inter-frequency basis according to the frequency sequence of the uplink reference symbols sent by the target terminal. The target time for sending uplink reference symbols on the same frequency as the working frequency of the adjacent cell, and the uplink reference symbol sent by the target terminal is received on the working frequency of the inter-frequency adjacent cell within the target time.

Since the terminal can have multiple inter-frequency adjacent cells, when the serving cell notifies the inter-frequency adjacent cells, it informs each inter-frequency adjacent cell, on which time-frequency resources the terminal will send uplink reference symbols, but does not know these time-frequency resources. The inter-frequency adjacent cells monitor uplink reference symbols on each time-frequency resource, resulting in a waste of power and resources in the inter-frequency adjacent cells. After the introduction of the frequency sequence for sending uplink reference symbols, the terminal tunes the frequency to different working frequency points of the inter-frequency adjacent cells at one time according to the frequency sequence, and sends the uplink reference symbols to the inter-frequency adjacent cells; correspondingly, the uplink reference After the frequency sequence of the symbols is notified to the inter-frequency neighbors, the inter-frequency neighbors can know when to receive the terminal's uplink reference symbols, and there is no need to monitor the terminal's signal when the terminal sends the uplink reference symbols on the frequency point, which helps system efficiency. improvement.

To sum up, in the third embodiment of the present invention, when the uplink quality of the serving cell is less than the measurement threshold, the serving cell sends an instruction to start the uplink inter-frequency measurement to the terminal and the inter-frequency adjacent cell, and carries the inter-frequency frequency point information, Sending the frequency sequence of the uplink reference symbols, the identification information of the terminal, the transmission information of the uplink reference symbols of the terminal, etc., so that the terminal disconnects the connection with the serving cell within the determined target transmission interval, and tunes to an inter-frequency neighbor On the working frequency point of the area, the uplink reference symbol is sent to the inter-frequency adjacent area; and the inter-frequency adjacent area receives the uplink reference symbol on the transmission time-frequency resources of the uplink reference symbol to perform the uplink inter-frequency measurement, and the uplink inter-frequency measurement is performed. The result is reported to the serving cell, and the serving cell implements the evaluation.

In order to more clearly describe the uplink inter-frequency measurement methods provided by the first to third embodiments of the present invention, the specific flow of the present invention is described below with reference to FIG. 4 :

Step 41, the serving cell monitors the uplink quality through uplink measurement.

Step 42, when the uplink quality is lower than a certain measurement threshold, the serving cell signaling informs the terminal to start the uplink inter-frequency measurement. The signaling content includes at least the following information:

Inter-frequency frequency information, or the inter-frequency frequency information can reuse the downlink measurement neighbor list issued by the network;

The signaling content may also include:

Information on the target transmission interval of the uplink reference symbols, including at least the period and length of the target transmission interval; and/or,

Frequency sequence of uplink reference symbols, that is, the terminal frequency modulates to different frequency points in this order, and sends uplink reference symbols;

At the same time, the serving cell notifies the inter-frequency neighbor cell to perform uplink measurement on the target terminal through signaling. The signaling includes at least the following information:

The identification number of the target terminal;

Relevant information sent by the reference symbols of the target terminal, including time-frequency resources, period, etc.

The signaling content may also include:

The sequence of the frequency points in which the terminal sends the uplink measurement reference symbols (for example, the terminal performs frequency modulation to the corresponding frequency points in the order of f1, f2, f3, . . . to send the uplink reference symbols).

Step 43, the terminal up-frequency modulates the corresponding frequency domain resource to the target frequency point within the corresponding time window according to the network configuration or the terminal's own configuration, and sends the uplink reference symbol.

Step 44, the inter-frequency adjacent cell receives the uplink reference symbol of the target terminal in the corresponding frequency domain resource within the corresponding time window according to the information provided by the serving cell, the inter-frequency adjacent cell completes the uplink measurement, and transmits the measurement result through signaling. feedback to the serving cell .

Step 45, the serving cell receives the uplink measurement feedback of the inter-frequency neighboring cells within a certain time window, and completes the evaluation.

Fourth Embodiment

As shown in FIG. 5 , a fourth embodiment of the present invention provides an uplink inter-frequency measurement device, which is applied to the terminal side and includes:

A receiving module 51, configured to receive uplink inter-frequency measurement indication information that is sent by the serving cell of the terminal and carries the operating frequency point information of the inter-frequency neighboring cell of the terminal;

The symbol sending module 52 is configured to, according to the uplink inter-frequency measurement indication information, disconnect the terminal from the connection with the serving cell within the determined target sending interval, and tune the frequency to the working frequency of the inter-frequency adjacent cell, and send the signal to the The inter-frequency adjacent cell sends an uplink reference symbol, so that the inter-frequency adjacent cell performs uplink inter-frequency measurement according to the uplink reference symbol and reports the uplink inter-frequency measurement result to the serving cell.

Specifically, the receiving module in the fourth embodiment of the present invention includes:

The receiving submodule is configured to receive uplink inter-frequency measurement indication information sent by the serving cell of the terminal when the uplink quality of the serving cell is lower than a measurement threshold.

Specifically, the device in the fourth embodiment of the present invention further includes:

The interval determination module is used for the terminal to determine the information of the target transmission interval or the terminal to receive the information of the target transmission interval configured by the serving cell; wherein the information of the target transmission interval includes the period of the target transmission interval and the length of the target transmission interval.

Specifically, the device in the fourth embodiment of the present invention further includes:

A reporting module, configured to report the information of the target sending interval to the serving cell of the terminal.

Specifically, in the fourth embodiment of the present invention, the uplink inter-frequency measurement indication information further carries the frequency point sequence for sending uplink reference symbols.

Specifically, the symbol sending module in the fourth embodiment of the present invention includes:

The symbol sending submodule is configured to, according to the uplink inter-frequency measurement indication information, disconnect the terminal from the connection with the serving cell within the determined target sending interval, and send the uplink reference symbol according to the frequency within the target sending interval. The frequency is sequentially tuned to the working frequency points of different inter-frequency adjacent cells, and uplink reference symbols are sent to the inter-frequency adjacent cells.

It should be noted that the uplink inter-frequency measurement device provided by the fourth embodiment of the present invention is an uplink inter-frequency measurement device on the terminal side capable of executing the uplink inter-frequency measurement method provided by the first embodiment. All the provided embodiments of the uplink inter-frequency measurement method are applicable to the uplink inter-frequency measurement device, and can achieve the same or similar beneficial effects.

Fifth Embodiment

As shown in FIG. 6 , a fifth embodiment of the present invention provides an uplink inter-frequency measurement device, which is applied to the inter-frequency adjacent cell side, including:

The information receiving module 61 is configured to receive the uplink inter-frequency measurement start information that is sent by the serving cell of the terminal and carries the identification information of the target terminal and the transmission information of the uplink reference symbol of the target terminal;

A determination module 62, configured to determine, according to the identification information of the target terminal and the transmission information of the uplink reference symbols of the target terminal, the transmission time-frequency resources of the target terminal and the uplink reference symbols of the target terminal;

A symbol receiving module 63, configured to receive the uplink reference symbol sent by the target terminal on the determined time-frequency resource for sending the uplink reference symbol;

The measurement module 64 is configured to perform uplink inter-frequency measurement according to the uplink reference symbol, and report the uplink inter-frequency measurement result to the serving cell.

Specifically, the information receiving module in the fifth embodiment of the present invention includes:

The information receiving sub-module is configured to receive uplink inter-frequency measurement start information sent by the serving cell of the terminal when the uplink quality of the serving cell is lower than a measurement threshold.

Specifically, in the fifth embodiment of the present invention, the uplink inter-frequency measurement start information also carries the sequence of frequency points for sending uplink reference symbols.

Specifically, the symbol receiving module in the fifth embodiment of the present invention includes:

The symbol receiving sub-module is used to determine the target time for the target terminal to send the uplink reference symbols on the same frequency as the working frequency of the inter-frequency adjacent cell according to the frequency sequence of sending the uplink reference symbols, and the target time The uplink reference symbols sent by the target terminal are received on the working frequency points of the inter-frequency adjacent cells within the system.

It should be noted that the uplink inter-frequency measurement device provided by the fifth embodiment of the present invention is an uplink inter-frequency measurement device on the side of inter-frequency adjacent cells capable of executing the uplink inter-frequency measurement method provided by the second embodiment. All the embodiments of the uplink inter-frequency measurement method provided by the embodiments are applicable to the uplink inter-frequency measurement device, and can achieve the same or similar beneficial effects.

Sixth Embodiment

As shown in FIG. 7 , a sixth embodiment of the present invention provides an uplink inter-frequency measurement device, which is applied to a serving cell, including:

The first sending module 71 is configured to send, to the target terminal, the uplink inter-frequency measurement indication information carrying the working frequency point information of the inter-frequency adjacent cell of the terminal when it is determined that the uplink inter-frequency measurement is started, so that the target terminal is in the determined state. In the target transmission interval, the terminal interrupts the connection with the serving cell, and modulates the frequency to the working frequency of the inter-frequency adjacent cell, and sends an uplink reference symbol to the inter-frequency adjacent cell;

The second sending module 72 is configured to send the uplink inter-frequency measurement start information carrying the identification information of the target terminal and the transmission information of the uplink reference symbol of the target terminal to the inter-frequency adjacent cell, so that the inter-frequency adjacent cell is in the determined uplink reference The uplink reference symbols sent by the target terminal are received on the symbol transmission time-frequency resources, and uplink inter-frequency measurement is performed according to the uplink reference symbols.

Specifically, the device in the sixth embodiment of the present invention further includes:

An evaluation module, configured to receive the uplink inter-frequency measurement result fed back by the inter-frequency neighbor cell, and perform network coverage assessment according to the measurement result.

Specifically, the device in the sixth embodiment of the present invention further includes:

a measurement module, configured to perform uplink measurement on the target terminal to determine the uplink quality of the serving cell;

A determining start module is configured to determine to start the uplink inter-frequency measurement when the uplink quality is lower than a measurement threshold value.

Specifically, the device in the sixth embodiment of the present invention further includes:

The interval information receiving module is configured to receive the information of the target sending interval determined by the target terminal reported by the target terminal; wherein the information of the target sending interval includes the period of the target sending interval and the length of the target sending interval.

Specifically, the second sending module in the sixth embodiment of the present invention includes:

The transmission determination submodule is configured to determine the transmission information of the uplink reference symbols of the target terminal according to the information of the determined target transmission interval; wherein the transmission information of the uplink reference symbols includes the transmission time-frequency resources of the uplink reference symbols and the transmission time-frequency resources of the uplink reference symbols. send cycle;

The sending submodule is configured to send the uplink inter-frequency measurement start information carrying the identification information of the target terminal and the transmission information of the uplink reference symbol of the target terminal to the inter-frequency adjacent cell.

Specifically, in the sixth embodiment of the present invention, the uplink inter-frequency measurement indication information also carries the frequency point sequence for sending uplink reference symbols, so that the target terminal interrupts the communication with the serving cell within the determined target sending interval. connection, within the target transmission interval, in the order of the frequency points for sending the uplink reference symbols, frequency-modulate the frequency to different working frequency points of the inter-frequency adjacent cells in sequence, and send the uplink reference symbols to the inter-frequency adjacent cells.

Specifically, in the sixth embodiment of the present invention, the uplink inter-frequency measurement start information also carries the frequency sequence of the uplink reference symbols sent by the target terminal, so that the inter-frequency adjacent cells can send the uplink reference symbols according to the frequency sequence of the uplink reference symbols. , determine the target time for the target terminal to send uplink reference symbols on the same frequency as the working frequency of the inter-frequency adjacent cell, and receive the target terminal on the working frequency of the inter-frequency adjacent cell within the target time The transmitted uplink reference symbols.

It should be noted that the uplink inter-frequency measurement device provided by the sixth embodiment of the present invention is an uplink inter-frequency measurement device on the serving cell side capable of executing the uplink inter-frequency measurement method provided by the third embodiment. All the embodiments of the uplink inter-frequency measurement method provided in the example are applicable to the uplink inter-frequency measurement device, and can achieve the same or similar beneficial effects.

The above are the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. These improvements and modifications It should also be regarded as the protection scope of the present invention.

Claims (25)

1. An uplink pilot frequency measurement method is applied to a terminal side, and is characterized by comprising the following steps:

receiving uplink pilot frequency measurement indication information which is sent by a service cell of a terminal and carries working frequency point information of a pilot frequency adjacent cell of the terminal;

according to the uplink pilot frequency measurement indication information, the terminal interrupts the connection with the service cell in the determined target sending interval, modulates the frequency to the working frequency point of the pilot frequency adjacent cell, and sends an uplink reference symbol to the pilot frequency adjacent cell, and the method comprises the following steps: sequentially modulating the frequency to working frequency points of different pilot frequency adjacent cells according to the frequency point sequence for transmitting the uplink reference symbols in the target transmission interval, and transmitting the uplink reference symbols to the pilot frequency adjacent cells, so that the pilot frequency adjacent cells perform uplink pilot frequency measurement according to the uplink reference symbols and report uplink pilot frequency measurement results to the serving cell;

wherein determining the target transmission interval comprises: the terminal determines the information of the target sending interval or the terminal receives the information of the target sending interval configured by the service cell; the information of the target sending interval comprises the period of the target sending interval and the length of the target sending interval.

2. The method of claim 1, wherein the step of receiving the uplink inter-frequency measurement indication information sent by the serving cell of the terminal comprises:

and when the uplink quality of the serving cell is lower than a measurement threshold, receiving uplink pilot frequency measurement indication information sent by the serving cell of the terminal.

3. The method of claim 1, wherein after the terminal determines the information of the target transmission interval, the method further comprises:

and reporting the information of the target sending interval to a service cell of the terminal.

4. The method of claim 1, wherein the uplink pilot frequency measurement indication information further carries a frequency point sequence for sending uplink reference symbols.

5. An uplink pilot frequency measurement method is applied to a pilot frequency adjacent cell side, and is characterized by comprising the following steps:

receiving uplink pilot frequency measurement starting information which is sent by a service cell of a terminal and carries identification information of a target terminal and sending information of an uplink reference symbol of the target terminal;

determining the target terminal and the sending time-frequency resource of the uplink reference symbol of the target terminal according to the identification information of the target terminal and the sending information of the uplink reference symbol of the target terminal;

receiving an uplink reference symbol sent by a target terminal on the determined sending time-frequency resource of the uplink reference symbol; the method comprises the following steps: determining target time for a target terminal to send uplink reference symbols on the same frequency point as the working frequency point of the pilot frequency adjacent cell according to the frequency point sequence for sending the uplink reference symbols, and receiving the uplink reference symbols sent by the target terminal on the working frequency point of the pilot frequency adjacent cell within the target time; determining the target transmission interval comprises: the terminal determines the information of the target sending interval or the terminal receives the information of the target sending interval configured by the service cell; the information of the target sending interval comprises the period of the target sending interval and the length of the target sending interval;

and performing uplink pilot frequency measurement according to the uplink reference symbol, and reporting an uplink pilot frequency measurement result to the serving cell.

6. The method of claim 5, wherein the step of receiving uplink inter-frequency measurement start information sent by a serving cell of the terminal comprises:

and when the uplink quality of the serving cell is lower than a measurement threshold, receiving uplink pilot frequency measurement starting information sent by the serving cell of the terminal.

7. The method according to claim 5, wherein the uplink pilot frequency measurement start information further carries a frequency point sequence for transmitting uplink reference symbols.

8. An uplink pilot frequency measurement method applied to a serving cell is characterized by comprising the following steps:

when determining to start uplink pilot frequency measurement, sending uplink pilot frequency measurement indication information carrying working frequency point information of pilot frequency adjacent cells of the terminal to a target terminal, so that the target terminal interrupts the connection with the service cell within a determined target sending interval, modulates the frequency to the working frequency point of the pilot frequency adjacent cells, and sends uplink reference symbols to the pilot frequency adjacent cells; wherein determining, by the terminal, the target transmission interval comprises: the terminal determines the information of the target sending interval or the terminal receives the information of the target sending interval configured by the service cell; the information of the target sending interval comprises the period of the target sending interval and the length of the target sending interval;

sending uplink pilot frequency measurement starting information carrying identification information of a target terminal and sending information of an uplink reference symbol of the target terminal to a pilot frequency adjacent cell, so that the pilot frequency adjacent cell receives the uplink reference symbol sent by the target terminal on a determined sending time-frequency resource of the uplink reference symbol and carries out uplink pilot frequency measurement according to the uplink reference symbol;

the uplink pilot frequency measurement indication information also carries a frequency point sequence for sending uplink reference symbols, so that a target terminal interrupts the connection with the service cell in a determined target sending interval, sequentially modulates the frequency to working frequency points of different pilot frequency adjacent cells according to the frequency point sequence for sending the uplink reference symbols in the target sending interval, and sends the uplink reference symbols to the pilot frequency adjacent cells.

9. The method of claim 8, wherein after the uplink pilot frequency measurement start information carrying the identification information of the target terminal and the transmission information of the uplink reference symbol of the target terminal is transmitted to the pilot frequency neighboring cell, the method further comprises:

and receiving an uplink pilot frequency measurement result fed back by the pilot frequency adjacent cell, and performing network coverage evaluation according to the measurement result.

10. The method of claim 8, wherein the step of determining to initiate uplink inter-frequency measurements comprises:

performing uplink measurement on a target terminal, and determining the uplink quality of a serving cell;

and when the uplink quality is lower than a measurement threshold value, determining to start uplink pilot frequency measurement.

11. The method of claim 8, wherein when the information of the target transmission interval is determined by the target terminal, after the target terminal determines the information of the target transmission interval, the method further comprises:

receiving information reported by a target terminal and used for determining a target sending interval by the target terminal; the information of the target sending interval comprises the period of the target sending interval and the length of the target sending interval.

12. The method of claim 8, wherein the step of sending uplink pilot frequency measurement start information carrying the identification information of the target terminal and the transmission information of the uplink reference symbol of the target terminal to the pilot frequency neighboring cell comprises:

determining the sending information of the uplink reference symbol of the target terminal according to the determined information of the target sending interval; the sending information of the uplink reference symbols comprises sending time-frequency resources of the uplink reference symbols and sending periods of the uplink reference symbols;

and sending uplink pilot frequency measurement starting information carrying the identification information of the target terminal and the sending information of the uplink reference symbol of the target terminal to the pilot frequency adjacent region.

13. The method according to claim 8, wherein the uplink pilot frequency measurement start information further carries a frequency point sequence of an uplink reference symbol sent by a target terminal, so that a pilot frequency neighboring cell determines a target time for the target terminal to send the uplink reference symbol on a frequency point same as a working frequency point of the pilot frequency neighboring cell according to the frequency point sequence for sending the uplink reference symbol, and receives the uplink reference symbol sent by the target terminal on the working frequency point of the pilot frequency neighboring cell within the target time.

14. An uplink pilot frequency measurement device applied to a terminal side, comprising:

the receiving module is used for receiving uplink pilot frequency measurement indication information which is sent by a service cell of a terminal and carries working frequency point information of a pilot frequency adjacent cell of the terminal;

a symbol sending module, configured to interrupt connection with the serving cell by the terminal within a determined target sending interval according to the uplink pilot frequency measurement indication information, frequency-modulate the uplink pilot frequency to a working frequency point of a pilot frequency neighboring cell, and send an uplink reference symbol to the pilot frequency neighboring cell, so that the pilot frequency neighboring cell performs uplink pilot frequency measurement according to the uplink reference symbol and reports an uplink pilot frequency measurement result to the serving cell;

an interval determining module, configured to determine information of a target sending interval by the terminal or receive information of the target sending interval configured by the serving cell by the terminal; the information of the target sending interval comprises the period of the target sending interval and the length of the target sending interval;

the symbol sending module comprises:

and the symbol sending submodule is used for interrupting the connection between the terminal and the service cell in a determined target sending interval according to the uplink pilot frequency measurement indication information, sequentially modulating the frequency to working frequency points of different pilot frequency adjacent cells according to the frequency sequence of the uplink reference symbols in the target sending interval, and sending the uplink reference symbols to the pilot frequency adjacent cells.

15. The apparatus of claim 14, wherein the receiving module comprises:

and the receiving submodule is used for receiving the uplink pilot frequency measurement indication information sent by the serving cell of the terminal when the uplink quality of the serving cell is lower than a measurement threshold.

16. The apparatus of claim 15, further comprising:

and the reporting module is used for reporting the information of the target sending interval to a service cell of the terminal.

17. The apparatus of claim 14, wherein the uplink pilot frequency measurement indication information further carries a frequency point sequence for sending uplink reference symbols.

18. An uplink pilot frequency measuring device is applied to a pilot frequency adjacent cell side, and is characterized by comprising:

the information receiving module is used for receiving uplink pilot frequency measurement starting information which is sent by a service cell of a terminal and carries identification information of a target terminal and sending information of an uplink reference symbol of the target terminal;

a determining module, configured to determine, according to the identification information of the target terminal and the transmission information of the uplink reference symbol of the target terminal, transmission time-frequency resources of the target terminal and the uplink reference symbol of the target terminal; wherein, the determining the target transmission interval by the terminal comprises: the terminal determines the information of the target sending interval or the terminal receives the information of the target sending interval configured by the service cell; the information of the target sending interval comprises the period of the target sending interval and the length of the target sending interval;

a symbol receiving module, configured to receive an uplink reference symbol sent by a target terminal on a determined sending time-frequency resource of the uplink reference symbol;

a measurement module, configured to perform uplink pilot frequency measurement according to the uplink reference symbol, and report an uplink pilot frequency measurement result to the serving cell;

the symbol receiving module includes:

and the symbol receiving submodule is used for determining the target time for the target terminal to send the uplink reference symbol on the frequency point which is the same as the working frequency point of the pilot frequency adjacent cell according to the frequency point sequence for sending the uplink reference symbol, and receiving the uplink reference symbol sent by the target terminal on the working frequency point of the pilot frequency adjacent cell in the target time.

19. The apparatus of claim 18, wherein the information receiving module comprises:

and the information receiving submodule is used for receiving uplink pilot frequency measurement starting information sent by the service cell of the terminal when the uplink quality of the service cell is lower than a measurement threshold.

20. The apparatus of claim 19, wherein the uplink pilot frequency measurement start information further carries a frequency point sequence for sending uplink reference symbols.

21. An uplink pilot frequency measurement device applied to a serving cell, comprising:

a first sending module, configured to send, to a target terminal, uplink pilot frequency measurement indication information carrying working frequency point information of a pilot frequency neighboring cell of the terminal when it is determined that uplink pilot frequency measurement is started, so that the target terminal interrupts connection with the serving cell within a determined target sending interval, modulates frequency to the working frequency point of the pilot frequency neighboring cell, and sends an uplink reference symbol to the pilot frequency neighboring cell; the uplink pilot frequency measurement indication information also carries a frequency point sequence for sending uplink reference symbols, so that a target terminal interrupts the connection with the serving cell within a determined target sending interval, sequentially modulates the frequency to working frequency points of different pilot frequency adjacent cells according to the frequency point sequence for sending the uplink reference symbols within the target sending interval, and sends the uplink reference symbols to the pilot frequency adjacent cells;

a second sending module, configured to send uplink pilot frequency measurement starting information carrying identification information of a target terminal and sending information of an uplink reference symbol of the target terminal to a pilot frequency neighboring cell, so that the pilot frequency neighboring cell receives the uplink reference symbol sent by the target terminal on a determined sending time-frequency resource of the uplink reference symbol and performs uplink pilot frequency measurement according to the uplink reference symbol;

the interval information receiving module is used for receiving the information reported by the target terminal and used for determining the target sending interval by the target terminal; the information of the target sending interval comprises the period of the target sending interval and the length of the target sending interval.

22. The apparatus of claim 21, further comprising:

and the evaluation module is used for receiving the uplink pilot frequency measurement result fed back by the pilot frequency adjacent cell and carrying out network coverage evaluation according to the measurement result.

23. The apparatus of claim 21, further comprising:

the measurement module is used for carrying out uplink measurement on the target terminal and determining the uplink quality of the serving cell;

and the determining and starting module is used for determining to start uplink pilot frequency measurement when the uplink quality is lower than a measurement threshold value.

24. The apparatus of claim 21, wherein the second sending module comprises:

the sending determining submodule is used for determining the sending information of the uplink reference symbol of the target terminal according to the determined information of the target sending interval; the sending information of the uplink reference symbols comprises sending time-frequency resources of the uplink reference symbols and sending periods of the uplink reference symbols;

and the sending submodule is used for sending uplink pilot frequency measurement starting information carrying the identification information of the target terminal and the sending information of the uplink reference symbol of the target terminal to the pilot frequency adjacent region.

25. The apparatus according to claim 21, wherein the uplink pilot frequency measurement start information further carries a frequency point sequence of sending an uplink reference symbol by a target terminal, so that a pilot frequency neighboring cell determines, according to the frequency point sequence of sending the uplink reference symbol, a target time for sending the uplink reference symbol by the target terminal on a frequency point same as a working frequency point of the pilot frequency neighboring cell, and receives the uplink reference symbol sent by the target terminal on the working frequency point of the pilot frequency neighboring cell within the target time.

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