A measurement method, apparatus, device, and storage medium
By receiving and sending preset measurement conditions in the NB-IoT terminal, neighbor cell measurement is enabled only under specific conditions, especially the measurement of the strongest neighbor cell. This solves the problem of excessive interruption time in the NB-IoT terminal during RRC reconstruction, achieving more efficient measurement and power saving.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZTE CORP
- Filing Date
- 2020-04-09
- Publication Date
- 2026-05-15
AI Technical Summary
NB-IoT terminals experience prolonged interruptions and excessively long neighbor cell search and measurement times during RRC reconstruction, leading to service disruptions.
By receiving and sending preset measurement conditions, neighbor cell measurement is only enabled when specific trigger conditions are met, limiting the measurement time and number of times, measuring only the strongest neighbor cell, and reducing unnecessary power consumption.
It reduces the interruption time of the RRC reconstruction process and the time for neighbor cell search and measurement, saves the power consumption of NB-IoT terminals, and improves the effectiveness of measurement.
Smart Images

Figure CN111901810B_ABST
Abstract
Description
Technical Field
[0001] This application relates to communications, and more specifically to a measurement method, apparatus, device, and storage medium. Background Technology
[0002] In idle state, Narrow Band Internet of Things (NB-IoT) terminals are located in overlapping coverage areas of multiple cells. The NB-IoT terminal measures the frequency points and neighboring cells according to the system information broadcast (both same and different frequencies), obtains the measurement results, and selects one cell to camp on based on the cell selection principle. When the NB-IoT terminal enters connected state, it continuously measures its local area. However, measuring neighboring cells is not supported because of the terminal's very slow movement speed and the high power consumption of periodic measurements. The NB-IoT terminal performs a radio link monitoring process on the downlink signal in its local area. When the NB-IoT terminal detects a deterioration in the signal quality of its local area, it triggers a radio link failure, and then initiates an RRC (Remote Reset Code) reconstruction process. After initiating the Radio Resource Control (RRC) reconstruction process, the NB-IoT terminal performs a cell reselection process. Based on the frequency points and neighboring cells configured by the base station, it searches and measures the cells to obtain measurement results. Then, according to cell selection principles, it selects a target cell and initiates the RRC reconstruction process for that target cell. However, the cell search and measurement process during RRC reconstruction is lengthy, sometimes exceeding 14 seconds, resulting in significant service interruptions. Therefore, reducing the interruption time of the RRC reconstruction process and minimizing the neighboring cell search and measurement time is a pressing issue that needs to be addressed. Summary of the Invention
[0003] This application provides a measurement method, apparatus, device, and storage medium that reduces the interruption time of the RRC reconstruction process and the time for neighbor cell search and measurement.
[0004] This application provides a measurement method applied to a first communication node, including:
[0005] Receive the preset measurement conditions configured by the second communication node;
[0006] Measurements of neighboring cells corresponding to the serving cell where the first communication node is located are initiated according to the preset measurement conditions.
[0007] This application provides a measurement method applied to a first communication node, including:
[0008] Send uplink data carrying the strongest neighbor information of the first communication node to the second communication node.
[0009] This application provides a measurement method applied to a second communication node, including:
[0010] Configure preset measurement conditions, which are used to enable measurement of neighboring cells corresponding to the serving cell where the first communication node is located;
[0011] The preset measurement conditions are sent to the first communication node.
[0012] This application provides a measuring device applied to a first communication node, comprising:
[0013] The receiver is configured to receive preset measurement conditions configured by the second communication node;
[0014] The measurement module is enabled and configured to perform measurements on neighboring cells corresponding to the serving cell where the first communication node is located, based on the preset measurement conditions.
[0015] This application provides a measuring device applied to a first communication node, comprising:
[0016] The transmitter is configured to send uplink data carrying the strongest neighbor information of the first communication node to the second communication node.
[0017] This application provides a measuring device applied to a second communication node, comprising:
[0018] The first configuration module is configured to configure preset measurement conditions, which are used to enable measurement of the neighboring cells corresponding to the serving cell where the first communication node is located.
[0019] The transmitter is configured to send the preset measurement conditions to the first communication node.
[0020] This application provides a device including: a communication module, a memory, and one or more processors;
[0021] The communication module is configured to perform communication interaction between the first communication node and the second communication node;
[0022] The memory is configured to store one or more programs;
[0023] When the one or more programs are executed by the one or more processors, the one or more processors implement the method described in any of the above embodiments.
[0024] This application provides a storage medium storing a computer program, which, when executed by a processor, implements the methods described in any of the above embodiments. Attached Figure Description
[0025] Figure 1 This is a flowchart of a measurement method provided in an embodiment of this application;
[0026] Figure 2 This is a flowchart of another measurement method provided in the embodiments of this application;
[0027] Figure 3 This is a flowchart of yet another measurement method provided in the embodiments of this application;
[0028] Figure 4 This is a flowchart illustrating the transmission of measurement configuration information provided in an embodiment of this application;
[0029] Figure 5 This is a schematic diagram of the format of a MAC CE message provided in an embodiment of this application;
[0030] Figure 6 This is a schematic diagram of another MAC CE message format provided in an embodiment of this application;
[0031] Figure 7 This is a flowchart illustrating the transmission of measurement configuration information in a connected state, as provided in an embodiment of this application.
[0032] Figure 8 This is a schematic diagram of another MAC CE message format provided in an embodiment of this application;
[0033] Figure 9 This is a schematic diagram of another MAC CE message format provided in an embodiment of this application;
[0034] Figure 10 This is a schematic diagram of another MAC CE message format provided in an embodiment of this application;
[0035] Figure 11 This is a structural block diagram of a measurement configuration provided in an embodiment of this application;
[0036] Figure 12 This is a structural block diagram of another measuring device provided in an embodiment of this application;
[0037] Figure 13 This is a structural block diagram of another measuring device provided in the embodiments of this application;
[0038] Figure 14 This is a schematic diagram of the structure of a device provided in an embodiment of this application. Detailed Implementation
[0039] The embodiments of this application will be described below with reference to the accompanying drawings.
[0040] Figure 1 This is a flowchart of a measurement method provided in an embodiment of this application. This embodiment is applied to a first communication node. Exemplarily, the first communication node is a terminal (e.g., User Equipment (UE)). Figure 1 As shown, this embodiment includes: S110-S120.
[0041] S110, Receive the preset measurement conditions configured by the second communication node.
[0042] S120. Start the measurement of the neighboring cells corresponding to the serving cell where the first communication node is located according to the preset measurement conditions.
[0043] In this embodiment, the second communication node configures preset measurement conditions for the first communication node. Only when the first communication node meets the preset measurement conditions will the measurement of the neighboring cells corresponding to its serving cell be started, thereby saving the energy carried by the first communication node and reducing the interruption time of the RRC reconstruction process.
[0044] In one embodiment, the preset measurement conditions include one of the following: meeting the trigger conditions for enabling same-frequency or different-frequency measurement; the validity of the measurement value; measurement configuration information; and neighboring cell time-frequency information.
[0045] In this embodiment, the triggering condition for the validity of the measured value refers to the fact that when the measured value of the same frequency, different frequency, frequency point, or neighboring cell meets a preset condition, it is not necessary to measure the same frequency, different frequency, frequency point, or neighboring cell. That is, if the first communication node meets the triggering condition for enabling same-frequency or different-frequency measurement, the first communication node can continue to perform same-frequency and different-frequency measurements, thereby repeatedly triggering measurements of neighboring cells, leading to increased power consumption of the first communication node. Therefore, when the triggering condition for enabling same-frequency or different-frequency measurement is met, the measurement time or number of measurements is limited. That is, if the time or number of measurements of neighboring cells does not reach the preset condition, it is not necessary to enable measurements of neighboring cells, thus reducing the power consumption of the first communication node.
[0046] In one embodiment, when the trigger condition for enabling same-frequency or different-frequency measurement is a deterioration in the signal quality of the serving cell where the first communication node is located, the determination method for the deterioration in the signal quality of the serving cell where the first communication node is located includes at least one of the following: within a first preset time period, the signal quality of the serving cell is less than or equal to a first preset threshold; within a second preset time period, the downlink radio link quality of the serving cell is less than or equal to a second preset threshold; the RRC receives a loss-of-synchronization indication reported by the physical layer; within a third preset time period, the number of loss-of-synchronization indications reported by the physical layer received by the RRC is greater than or equal to a third preset threshold; the number of consecutive loss-of-synchronization indications reported by the physical layer received by the RRC is greater than or equal to a fourth preset threshold; within a fourth preset time period, the number of Physical Downlink Control Channels (PDCCHs) not detected is greater than or equal to a fifth preset threshold; the number of consecutively undetected PDCCHs is greater than or equal to a sixth preset threshold; the maximum number of repetitions of the Narrow Physical Downlink Control Channel (NPDCCH) is greater than or equal to a sixth preset threshold; the Narrow Physical Downlink Shared Channel (NPDCCH) is greater than or equal to a sixth preset threshold; The maximum number of repetitions of the Downlink Shared Channel (NPDSCH) is greater than or equal to the seventh preset threshold; the retransmission rate of the Hybrid Automatic Repeat reQuest (HARQ) is greater than or equal to the eighth preset threshold; the signal quality change of the serving cell is greater than or equal to the ninth preset threshold within the fifth preset time period; the signal quality of the co-frequency neighboring cell is less than or equal to the tenth preset threshold, and inter-frequency measurement is enabled; the duration of enabling co-frequency or inter-frequency measurement is greater than or equal to the eleventh preset threshold.
[0047] In one embodiment, the signal quality of the serving cell or neighboring cell is characterized by at least one of the following parameters: Reference Signal Receiving Power (RSRP); Reference Signal Receiving Quality (RSRQ); and Signal to Interference plus Noise Ratio (SINR).
[0048] In one embodiment, the downlink radio link quality of the serving cell is characterized by at least one of the following parameters: RSRP value; Bit Error Rate (BLER) value.
[0049] In one embodiment, the determination criteria for the validity of a measurement value include at least one of the following: the duration of measurement completion reaches the twelfth preset threshold; the duration of searching or measuring reaches the thirteenth preset threshold; the signal quality change value of the serving cell reaches the fourteenth preset threshold; the current number of measurements at the same frequency or different frequency is less than or equal to the fifteenth preset threshold; the validity of the measurement value refers to the fact that when the measurement value of the same frequency, different frequency, frequency point or neighboring cell meets the preset conditions, it is not necessary to measure the same frequency, different frequency, frequency point or neighboring cell.
[0050] In one embodiment, the measurement method applied to the first communication node further includes: reporting uplink data carrying a neighbor cell measurement status indication to the second communication node, wherein the neighbor cell measurement status indication includes at least one of the following: an indication that same-frequency or different-frequency measurement is satisfied; an indication that same-frequency or different-frequency measurement is about to be started; or an indication that same-frequency or different-frequency measurement is requested to be started.
[0051] In one embodiment, the uplink data carrying the neighbor cell measurement status indication includes one of the following: a random access preamble; a Physical Uplink Control Channel (PUCCH) message; a Media Access Control-Control Element (MAC CE) message; or an RRC message.
[0052] In one embodiment, after reporting uplink data carrying a neighbor cell measurement status indication to the second communication node, the method further includes:
[0053] The start time of inter-frequency measurement is determined in one of the following ways: the first preset time after successfully sending uplink data is used as the start time; the time when feedback information from the second communication node is successfully received is used as the start time; or the second preset time carried in the uplink data is used as the start time.
[0054] In one embodiment, the measurement method applied to the first communication node further includes: determining the inter-frequency measurement time, wherein the inter-frequency measurement time includes: the first communication node not transmitting data to the second communication node, or the first communication node not receiving data from the second communication node.
[0055] In one embodiment, the determination of the inter-frequency measurement time includes one of the following: within a sixth preset time period, the MAC does not receive or send a MAC Service Data Unit (SDU) message; within a seventh preset time period, the buffer of the Radio Link Control (RLC) or the MAC is empty; and the service delay is greater than or equal to a sixteenth preset threshold.
[0056] In one embodiment, the measurement configuration information includes one of the following: first measurement configuration information carried by an RRC message; second measurement configuration information carried by an RRC message; measurement configuration information activated by a MAC CE message; or measurement configuration information activated by a Downlink Control Information (DCI) message.
[0057] In one embodiment, the first measurement configuration information includes: measurement frequency point value, and cell selection parameters for each frequency point; the second measurement configuration information includes: measurement frequency point index.
[0058] In one embodiment, the measurement configuration information activated by the MAC CE message includes one of the following: the MAC CE message carries an activation measurement flag; the MAC CE message carries a frequency index for the activated measurement; the MAC CE message carries a bit string; the activation measurement flag is used to indicate whether same-frequency measurement and / or different-frequency measurement are activated; the bit string is used to indicate whether measurement is enabled for a certain frequency represented by the bit.
[0059] In one embodiment, the measurement configuration information activated by the DCI message includes one of the following: the DCI message carries an activation measurement flag bit; the DCI message carries a frequency index of the activated measurement; the DCI message carries a bit string; the activation measurement flag bit is used to indicate whether the activation is for same-frequency measurement and / or different-frequency measurement; the bit string is used to indicate whether the measurement is enabled at a certain frequency represented by the bit bit.
[0060] In one embodiment, neighbor cell time-frequency information is configured via system information broadcast or RRC message for neighbor cells of the same or different frequencies.
[0061] In one embodiment, the neighboring cell time-frequency information includes: the time-domain location of the measurement time or the transmission time of the measurement signal; the measurement frequency point, measurement bandwidth, or the frequency-domain location of the measurement signal.
[0062] In one embodiment, during the process of configuring neighboring cells for measurement by the second communication node for the first communication node, if the second communication node configures all neighboring cells near the serving cell where the first communication node is located to the first communication node and allows the first communication node to perform measurements, this results in increased power consumption and reduced measurement efficiency for the first communication node. In view of this, this application proposes a measurement method in which, when the first communication node reports neighboring cell information, it only reports the strongest neighboring cell near the serving cell where the first communication node is located. This allows the second communication node to configure corresponding measurement configuration information based on the strongest neighboring cell, and then the first communication node to measure the strongest neighboring cell based on the measurement configuration information of the strongest neighboring cell, thereby improving the effectiveness of the measurement. Figure 2 This is a flowchart of another measurement method provided in an embodiment of this application. This embodiment is applied to a first communication node. Figure 2As shown, this embodiment includes: S210-S220.
[0063] S210, Send uplink data carrying the strongest neighbor information of the first communication node to the second communication node.
[0064] In this embodiment, the first communication node can report neighbor cell information to the second communication node, enabling the second communication node to determine the location of the first communication node based on the neighbor cell information. To avoid the first communication node measuring all neighbor cells near its current serving cell, the strongest neighbor cell information can be included in the uplink data reported by the first communication node when reporting neighbor cell information to the second communication node. This allows the second communication node to configure itself based on the strongest neighbor cell information, obtain neighbor cell measurement configuration information, and then send the neighbor cell measurement configuration information to the first communication node. This enables the first communication node to measure the strongest neighbor cell based on the neighbor cell measurement configuration information, saving power consumption of the first communication node and improving the effectiveness of the measurement.
[0065] In this embodiment, the uplink data carrying the strongest neighbor cell information of the first communication node can be an RRC message or a MAC CE message.
[0066] In one embodiment, the measurement method applied to the first communication node further includes: receiving a strongest neighbor cell enable indication message sent by the second communication node, wherein the strongest neighbor cell enable indication message is used to indicate whether the first communication node supports reporting the strongest neighbor cell at a preset frequency. In this embodiment, before the first communication node sends uplink data carrying the strongest neighbor cell information of the first communication node to the second communication node, in order to enable the first communication node to report the strongest neighbor cell information, the second communication node enables the first communication node to report the strongest neighbor cell information through a system message; that is, the second communication node can send the strongest neighbor cell enable indication message to the first communication node to enable the first communication node to report the strongest neighbor cell information.
[0067] In one embodiment, the uplink data carrying the strongest neighbor cell information of the first communication node includes: an RRC message initiated in the idle state or inactive state; and a MAC CE message.
[0068] In one embodiment, the RRC message carries the strongest neighbor information in one of the following ways:
[0069] The RRC message carries a list including a frequency index and the cell identifier of the corresponding strongest neighbor cell;
[0070] The RRC message carries a list including a frequency index and the cell identifier of the corresponding strongest neighbor cell;
[0071] The RRC message carries a list of cell identifiers of the strongest neighboring cells, ordered by frequency point or frequency point index.
[0072] The RRC message carries the cell identifier of the strongest neighboring cell with the same frequency.
[0073] In one embodiment, the MAC CE message carries the strongest neighbor information in one of the following ways:
[0074] The MAC CE message carries a list including a frequency index and the cell identifier of the corresponding strongest neighbor cell;
[0075] The MAC CE message carries a frequency index and the cell identifier of the corresponding strongest neighbor cell;
[0076] The MAC CE message carries a list of cell identifiers of the strongest neighbor cells, which are ordered by frequency point or frequency point index.
[0077] The MAC CE message carries the cell identifier of the strongest neighboring cell on the same frequency.
[0078] In one embodiment, the strongest neighbor cell includes one of the following: the neighbor cell with the largest RSRP, RSRQ, or SINR measurement value; or the neighbor cell with the largest RSRP, RSRQ, or SINR measurement value that is greater than or equal to the seventeenth preset threshold value. The neighbor cell can be the strongest neighbor cell at the same frequency, a certain frequency point, or all frequency points.
[0079] In one embodiment, the strongest neighbor cell information includes one of the following: frequency point, frequency point index, neighbor cell identifier, and signal quality value.
[0080] In one embodiment, Figure 3 This is a flowchart of another measurement method provided in an embodiment of this application. This embodiment is applied to a second communication node. Exemplarily, the second communication node can be a base station or a network side. Figure 3 As shown, this embodiment includes: S310-S320.
[0081] S310. Configure preset measurement conditions. The preset measurement conditions are used to enable the measurement of the neighboring cells corresponding to the serving cell where the first communication node is located.
[0082] S320. Send the preset measurement conditions to the first communication node.
[0083] In this embodiment, the second communication node configures preset measurement conditions so that the first communication node can start measuring the neighboring cells corresponding to the serving cell where the first communication node is located, instead of measuring all neighboring cells. This saves the power consumption of the first communication node and reduces the interruption time of the RRC reconstruction process.
[0084] In one embodiment, the preset measurement conditions include one of the following: meeting the trigger conditions for enabling same-frequency or different-frequency measurement; the validity of the measurement value; measurement configuration information; and neighboring cell time-frequency information.
[0085] In this embodiment, the triggering condition for the validity of the measured value refers to the fact that when the measured value of the same frequency, different frequency, frequency point, or neighboring cell meets a preset condition, it is not necessary to measure the same frequency, different frequency, frequency point, or neighboring cell. That is, if the first communication node meets the triggering condition for enabling same-frequency or different-frequency measurement, the first communication node can continue to perform same-frequency and different-frequency measurements, thereby repeatedly triggering measurements of neighboring cells, leading to increased power consumption of the first communication node. Therefore, when the triggering condition for enabling same-frequency or different-frequency measurement is met, the measurement time or number of measurements is limited. That is, if the time or number of measurements of neighboring cells does not reach the preset condition, it is not necessary to enable measurements of neighboring cells, thus reducing the power consumption of the first communication node.
[0086] In one embodiment, when the trigger condition for enabling in-frequency or out-of-frequency measurement is a deterioration in the signal quality of the serving cell where the first communication node is located, the determination method for the deterioration in the signal quality of the serving cell where the first communication node is located includes at least one of the following: within a first preset time period, the signal quality of the serving cell is less than or equal to a first preset threshold; within a second preset time period, the downlink radio link quality of the serving cell is less than or equal to a second preset threshold; the RRC receives a loss-of-synchronization indication reported by the physical layer; within a third preset time period, the number of loss-of-synchronization indications reported by the physical layer to the RRC is greater than or equal to a third preset threshold; the number of consecutive loss-of-synchronization indications reported by the physical layer to the RRC is greater than or equal to... The fourth preset threshold; within the fourth preset time period, the number of PDCCHs not detected is greater than or equal to the fifth preset threshold; the number of consecutively undetected PDCCHs is greater than or equal to the sixth preset threshold; the maximum number of NPDCCH repetitions is greater than or equal to the sixth preset threshold; the maximum number of NPDSCH repetitions is greater than or equal to the seventh preset threshold; the HARQ retransmission rate is greater than or equal to the eighth preset threshold; within the fifth preset time period, the signal quality change value of the serving cell is greater than or equal to the ninth preset threshold; the signal quality of co-frequency neighboring cells is less than or equal to the tenth preset threshold, and inter-frequency measurement is enabled; the duration of enabling co-frequency or inter-frequency measurement is greater than or equal to the eleventh preset threshold.
[0087] In one embodiment, the signal quality of the serving cell or neighboring cell is characterized by at least one of the following parameters: RSRP value; RSRQ value; SINR value.
[0088] In one embodiment, the downlink radio link quality of the serving cell is characterized by at least one of the following parameters: RSRP value; BLER value.
[0089] In one embodiment, the criteria for determining the validity of a measurement value include at least one of the following: the duration of the measurement ends reaches the twelfth preset threshold; the duration of the search or measurement begins reaches the thirteenth preset threshold; the signal quality change value of the serving cell reaches the fourteenth preset threshold; and the current number of measurements at the same or different frequencies is less than or equal to the fifteenth preset threshold.
[0090] In one embodiment, the measurement method applied to the second communication node further includes: receiving uplink data reported by the first communication node carrying a neighboring cell measurement status indication, wherein the neighboring cell measurement status indication includes at least one of the following: an indication that same-frequency or different-frequency measurement is satisfied; an indication that same-frequency or different-frequency measurement is about to be started; or an indication that same-frequency or different-frequency measurement is requested to be started.
[0091] In one embodiment, the uplink data carrying the neighbor cell measurement status indication includes one of the following: random access preamble; PUCCH message; MAC CE message; RRC message.
[0092] In one embodiment, after receiving uplink data carrying a neighbor cell measurement status indication reported by the first communication node, the method further includes:
[0093] Configure the start time of inter-frequency measurement. The start time can be determined by one of the following methods: the first preset time after successfully sending uplink data is used as the start time; the time when feedback information from the second communication node is successfully received is used as the start time; or the second preset time carried in the uplink data is used as the start time.
[0094] In one embodiment, the measurement method applied to the second communication node further includes: configuring inter-frequency measurement time, wherein the inter-frequency measurement time includes: the first communication node not transmitting data to the second communication node, or the first communication node not receiving data from the second communication node.
[0095] In one embodiment, the determination of the inter-frequency measurement time includes one of the following: the MAC does not receive or send a MAC SDU message within a sixth preset time period; the buffer of the RLC or MAC is empty within a seventh preset time period; or the service delay is greater than or equal to a sixteenth preset threshold value.
[0096] In one embodiment, the measurement configuration information includes one of the following: first measurement configuration information carried by an RRC message; second measurement configuration information carried by an RRC message; measurement configuration information activated by a MAC CE message; or measurement configuration information activated by a DCI message.
[0097] In one embodiment, the first measurement configuration information includes: measurement frequency point value, and cell selection parameters for each frequency point; the second measurement configuration information includes: measurement frequency point index.
[0098] In one embodiment, the measurement configuration information activated by the MAC CE message includes one of the following: the MAC CE message carries an activation measurement flag; the MAC CE message carries a frequency index for the activated measurement; the MAC CE message carries a bit string; the activation measurement flag is used to indicate whether same-frequency measurement and / or different-frequency measurement are activated; the bit string is used to indicate whether measurement is enabled for a certain frequency represented by the bit.
[0099] In one embodiment, the measurement configuration information activated by the DCI message includes one of the following: the DCI message carries an activation measurement flag bit; the DCI message carries a frequency index for the activated measurement; the DCI message carries a bit string; the activation measurement flag bit is used to indicate whether the activation is for same-frequency measurement or different-frequency measurement; the bit string is used to indicate whether the measurement is enabled for a certain frequency represented by the bit bit.
[0100] In one embodiment, neighbor cell time-frequency information is configured via system information broadcast or RRC messages to specify whether the user's neighbor cells are at the same or different frequencies.
[0101] In one embodiment, the neighboring cell time-frequency information includes: the time-domain location of the measurement time or the transmission time of the measurement signal; the measurement frequency point, measurement bandwidth, or the frequency-domain location of the measurement signal.
[0102] In one embodiment, the measurement method applied to the second communication node includes:
[0103] Receive uplink data sent by the first communication node, which carries the strongest neighbor information of the first communication node.
[0104] In one embodiment, the measurement method applied to the second communication node further includes: sending the strongest neighbor cell enable indication information to the first communication node, wherein the strongest neighbor cell enable indication information is used to indicate whether the first communication node supports reporting the strongest neighbor cell at a preset frequency point.
[0105] In one embodiment, the uplink data carrying the strongest neighbor cell information of the first communication node includes: an RRC message initiated in the idle state or inactive state; and a MAC CE message.
[0106] In one embodiment, the RRC message carries the strongest neighbor information in one of the following ways:
[0107] The RRC message carries a list including frequency index and the cell identifier of the corresponding strongest neighbor cell; the RRC message carries a list including frequency index and the cell identifier of the corresponding strongest neighbor cell; the RRC message carries a list of cell identifiers of the strongest neighbor cells in order of frequency or frequency index; the RRC message carries the cell identifier of the strongest neighbor cell on the same frequency.
[0108] In one embodiment, the MAC CE message carries the strongest neighbor cell information in one of the following ways: the MAC CE message carries a list including a frequency index and the cell identifier of the corresponding strongest neighbor cell; the MAC CE message carries a list including a frequency index and the cell identifier of the corresponding strongest neighbor cell; the MAC CE message carries a list of cell identifiers of the strongest neighbor cells corresponding in frequency order or frequency index order; the MAC CE message carries the cell identifier of the strongest neighbor cell on the same frequency.
[0109] In one embodiment, the strongest neighbor cell includes one of the following: the neighbor cell with the largest reference signal received power (RSRP) or reference signal received quality (RSRQ) or SINR measurement value; or the neighbor cell with the largest RSRP, RSRQ, or SINR measurement value that is greater than or equal to the eighteenth preset threshold value.
[0110] In one embodiment, the strongest neighbor cell information includes one of the following: frequency point, frequency point index, neighbor cell identifier, and signal quality value.
[0111] In one implementation, taking the preset measurement conditions as the trigger conditions for enabling same-frequency and / or different-frequency measurements as an example, the process of enabling the measurement of the neighboring cells corresponding to the serving cell where the first communication node is located is explained.
[0112] In this embodiment, the second communication node enables the first communication node to determine whether to trigger the measurement conditions for same-frequency and / or different-frequency measurements. When the second communication node enables the first communication node to determine the measurement conditions for same-frequency and / or different-frequency measurements, the first communication node can make a determination based on the configuration information, and if the trigger conditions for same-frequency and / or different-frequency measurements are met, the first communication node will initiate the measurement for same-frequency and / or different-frequency measurements.
[0113] In this embodiment, the triggering condition for in-frequency and / or out-of-frequency measurements may be a deterioration in the signal quality of the serving cell where the first communication node is located. In one embodiment, the triggering conditions for in-frequency and out-of-frequency measurements may be the same or different. For example, if in-frequency and out-of-frequency measurements have the same triggering condition, then both in-frequency and out-of-frequency measurements are triggered when the same triggering condition is met; or, if in-frequency and out-of-frequency measurements have different triggering conditions, for example, the triggering condition for in-frequency measurements is lower and the triggering condition for out-of-frequency measurements is higher. This is not limited and can be adjusted according to the actual situation.
[0114] The second communication node broadcasts or configures frequency points of the same or different frequencies, as well as neighboring cells existing on those frequencies. In connected state, the first communication node measures neighboring cells when triggering conditions are met. The second communication node configures the same frequency point as the serving cell of the first communication node through broadcast system information or RRC messages. This can include cell identifiers of neighboring cells existing on the same frequency (e.g., Physical Cell Identifier (PCI)). It also configures the different frequency point of the serving cell of the current communication node, which can include the frequency point of the different frequency and the cell identifiers of neighboring cells existing on that frequency (e.g., PCI).
[0115] The second communication node can select or enable whether to enable the triggering conditions for determining same-frequency or different-frequency measurements for the first communication node based on the first communication node's location. The node configures the triggering conditions for same-frequency or different-frequency measurements to the first communication node via RRC messages, such as threshold values and time values. For example, RRC reconfiguration messages, RRC establishment messages, RRC re-establishment messages, or RRC continue messages carry threshold values or timer values for determining the triggering conditions for same-frequency or different-frequency measurements. Upon receiving the message, the first communication node finds that the message carries configuration parameters for determining the triggering conditions for same-frequency or different-frequency measurements, such as threshold values and timer values, and then performs a judgment on the same-frequency or different-frequency triggering conditions; otherwise, it does not perform a judgment on the same-frequency or different-frequency triggering conditions.
[0116] In this embodiment, the trigger condition for determining whether a measurement is performed on the same frequency or a different frequency can be whether the signal quality of the serving cell deteriorates. If the signal quality of the serving cell of the first communication node deteriorates, measurements of neighboring cells are initiated.
[0117] In this embodiment, the first communication node may determine that the signal quality of the serving cell has deteriorated in one of the following ways:
[0118] Method 1: Within a first preset time period, the signal quality of the serving cell is less than or equal to a first preset threshold. The signal quality of the serving cell can be characterized by parameters such as the RSRP value, RSRQ value, and SINR value measured by the serving cell. For example, if the RSRP value of the serving cell is less than or equal to threshold 1 within time 1, and / or the RSRQ value is less than or equal to threshold 2 within time 2, and / or the SINR value is less than or equal to threshold 3 within time 3, the first communication node considers the signal quality of its cell to be poor and initiates same-frequency measurement. If the RSRP value of the serving cell is less than or equal to threshold 4 within time 4, and / or the RSRQ value is less than or equal to threshold 5 within time 5, and / or the SINR value is less than or equal to threshold 6 within time 6, the first communication node considers the signal quality of its cell to be poor and initiates inter-frequency measurement. For example, at time n, the RSRP value of the serving cell is obtained, and timer 1 is started. The duration of timer 1 is equal to time 1. When timer 1 expires, if the RSRP value of the serving cell is less than or equal to the threshold value 1 during this period, then the first communication node starts same-frequency measurement. Similarly, the process of starting inter-frequency measurement for RSRQ value and SINR value is the same, and will not be described in detail here.
[0119] In this embodiment, the second communication node can be configured with threshold values and time intervals. Threshold values 1 and 4 can be the same or different, threshold values 2 and 5 can be the same or different, and threshold values 3 and 6 can be the same or different. Time intervals 1, 2, 3, 4, 5, and 6 can be the same or different.
[0120] Method 2: Within a second preset time period, the downlink radio link quality of the serving cell is less than or equal to a second threshold value. Downlink radio link quality can be represented by the received power of the reference signal measured by the first communication node, or the BLER obtained by the first communication node. That is, if within time 1, the received power of the reference signal measured by the first communication node is less than or equal to threshold value 1, or the BLER obtained by the first communication node is less than or equal to threshold value 2, the first communication node considers the signal quality of its cell to be poor and initiates same-frequency measurement. If within time 2, the received power of the reference signal measured by the first communication node is less than or equal to threshold value 3, or the BLER obtained by the first communication node is less than or equal to threshold value 4, the first communication node considers the signal quality of its cell to be poor and initiates inter-frequency measurement.
[0121] In this embodiment, the second communication node can be configured with threshold values and values for a certain period of time. Threshold values 1 and 3 can be the same or different, as can threshold values 2 and 4. Time 1 and time 2 can be the same or different.
[0122] Method 3: The RRC receives an out-of-sync indication reported by the physical layer. When the downlink radio link quality of the serving cell is less than or equal to a certain threshold value within the evaluation period, the physical layer reports an out-of-sync indication to the RRC. When the RRC receives the out-of-sync indication, the first communication node initiates same-frequency and / or different-frequency measurements.
[0123] Alternatively, within a third preset time period, if the number of out-of-synchronization indications reported by the physical layer to the RRC is greater than or equal to a third preset threshold, then within time 1, if the number of out-of-synchronization indications received by the RRC is greater than or equal to threshold 1, the first communication node initiates same-frequency measurement. Within time 2, if the number of out-of-synchronization indications received by the RRC is greater than or equal to threshold 2, the first communication node initiates inter-frequency measurement. For example, if the RRC receives an out-of-synchronization indication and timer 1 times out, it starts timer 1 and begins counting the number of received out-of-synchronization indications. The duration of timer 1 is equal to a certain time period 1. If the RRC receives an out-of-synchronization indication and the timer does not time out, the number of received out-of-synchronization indications is incremented by one. Before the timer times out, if the number of out-of-synchronization indications received by the RRC is greater than or equal to threshold 1, the first communication node initiates same-frequency measurement. The same applies to inter-frequency measurement.
[0124] In this embodiment, the second communication node can be configured with a threshold value and a value for a certain period of time. Time 1 and Time 2 can be the same or different. Threshold value 1 and Threshold value 2 can be the same or different.
[0125] Alternatively, if the number of consecutive out-of-synchronization indications received by the RRC from the physical layer is greater than or equal to the fourth preset threshold, and the number of consecutive out-of-synchronization indications received by the RRC is greater than or equal to threshold 1, the first communication node initiates same-frequency measurement. If the number of consecutive out-of-synchronization indications received by the RRC is greater than or equal to threshold 2, the first communication node initiates inter-frequency measurement. For example, if the RRC receives an out-of-synchronization indication and the counter is 0, it begins counting the number of consecutively received out-of-synchronization indications. If consecutive out-of-synchronization indications are received, the counter increments by one; if no out-of-synchronization indication is received or a synchronization indication is received, the counter is reset to zero. If the number of consecutive out-of-synchronization indications received by the RRC is greater than or equal to threshold 1, the first communication node initiates same-frequency measurement. The same applies to inter-frequency measurement.
[0126] In this embodiment, the second communication node can be configured with threshold values. Threshold value 1 and threshold value 2 can be the same or different.
[0127] Method 4: Within the fourth preset time period, the number of PDCCHs not detected by the first communication node is greater than or equal to the fifth preset threshold. Within time 1, if the number of PDCCHs not detected by the first communication node reaches a certain threshold 1, the first communication node initiates same-frequency measurement. Within time 2, if the number of PDCCHs not detected by the first communication node reaches a certain threshold 2, the first communication node initiates different-frequency measurement. For example, if the first communication node does not detect a PDCCH and Timer 1 times out, Timer 1 is started, and the number of undetected PDCCHs is counted. The duration of Timer 1 is equal to that of Time 1. If the first communication node does not detect a PDCCH and the timer does not time out, the number of undetected PDCCHs is incremented by one. If the number of undetected PDCCHs is greater than or equal to the threshold 1, the first communication node initiates same-frequency measurement. The same applies to different-frequency measurement.
[0128] Alternatively, the number of consecutively undetected PDCCHs is greater than or equal to the sixth preset threshold. If the number of consecutively undetected PDCCHs is greater than or equal to threshold 1, the first communication node initiates same-frequency measurement. If the number of consecutively undetected PDCCHs is greater than or equal to threshold 2, the first communication node initiates inter-frequency measurement. For example, if no PDCCH is detected and the counter is 0, the count of consecutively undetected PDCCHs begins. If no PDCCH is detected consecutively, the counter increments by one; if a PDCCH is detected, the counter resets to zero. The same applies to inter-frequency measurement.
[0129] In this embodiment, the second communication node can be configured with a threshold value and a value for a certain period of time. Threshold value 1 and threshold value 2 can be the same or different.
[0130] Method 5: The maximum number of NPDCCH repetitions is greater than or equal to the seventh preset threshold, or the maximum number of NPDSCH repetitions is greater than or equal to the eighth preset threshold. When the second communication node's maximum number of NPDCCH repetitions configured via RRC is greater than or equal to a certain threshold 1, the first communication node initiates same-frequency measurement. When the node's maximum number of NPDCCH repetitions configured via RRC is greater than or equal to a certain threshold 2, the first communication node initiates inter-frequency measurement.
[0131] Alternatively, if the maximum number of NPDSCH repetitions configured by the second communication node via RRC is greater than or equal to a certain threshold value 3, the first communication node enables same-frequency measurement. If the maximum number of NPDSCH repetitions configured by the second communication node via RRC is greater than or equal to a certain threshold value 4, the first communication node enables different-frequency measurement.
[0132] In this embodiment, the second communication node can be configured with threshold values. Threshold values 1, 3, 2, and 4 can be the same or different.
[0133] Alternatively, the second communication node, through the maximum number of NPDCCH repetitions configured by RRC, and the second communication node, through DCI indicating that the maximum number of NPDCCH repetitions is greater than or equal to a certain threshold value 1, enables the first communication node to start same-frequency measurement. The second communication node, through the maximum number of NPDCCH repetitions configured by RRC, and the node, through DCI indicating that the maximum number of NPDCCH repetitions is greater than or equal to a certain threshold value 2, enables different-frequency measurement.
[0134] Alternatively, if the second communication node configures the maximum number of NPDSCH repetitions via RRC, and the second communication node indicates via DCI that the maximum number of NPDSCH repetitions is greater than or equal to a certain threshold value 3, the first communication node initiates same-frequency measurement. If the second communication node configures the maximum number of NPDSCH repetitions via RRC, and the second communication node indicates via DCI that the maximum number of NPDSCH repetitions is greater than or equal to a certain threshold value 4, the first communication node initiates different-frequency measurement.
[0135] In this embodiment, the second communication node can be configured with threshold values. Threshold values 1, 3, 2, and 4 can be the same or different.
[0136] Method Six: The HARQ retransmission rate is greater than or equal to the ninth preset threshold. For example, if the HARQ retransmission rate is greater than or equal to a certain threshold 1, the first communication node initiates same-frequency measurement. If the HARQ retransmission rate is greater than or equal to a certain threshold 2, the first communication node initiates inter-frequency measurement.
[0137] In this embodiment, the second communication node can be configured with threshold values. Threshold value 1 and threshold value 2 can be the same or different.
[0138] Method 7: Within a fifth preset time period, the change in the serving cell's signal quality is greater than or equal to a tenth preset threshold. A large change in the serving cell's signal quality indicates that the first communication node is at the edge and moving rapidly, potentially moving to another cell. The serving cell's signal quality can be assessed using its RSRP, RSRQ, and SINR values. Specifically, if within a certain time period 1, the decrease in the serving cell's RSRP is greater than or equal to a certain threshold 1, and / or within a certain time period 2, the decrease in the serving cell's RSRQ is greater than or equal to a certain threshold 2, and / or within a certain time period 3, the decrease in the serving cell's SINR is greater than or equal to a certain threshold 3, the first communication node considers the cell's signal quality poor and initiates co-frequency measurement. If, within a certain time period 4, the decrease in the serving cell's RSRP is greater than or equal to a certain threshold 4, and / or, within a certain time period 5, the decrease in the serving cell's RSRQ is greater than or equal to a certain threshold 5, and / or, within a certain time period 6, the decrease in the serving cell's SINR is greater than or equal to a certain threshold 6, the first communication node considers the signal quality of its cell to be poor and initiates inter-frequency measurement. For example, at time n, the RSRP value of the serving cell is obtained, and timer 1 is started. The duration of timer 1 is equal to a certain time period 1. When timer 1 expires, if, within this time period, the decrease in the serving cell's RSRP is greater than or equal to a certain threshold 1, then the first communication node initiates intra-frequency measurement. The same applies to RSRQ, SINR, and inter-frequency measurement, which will not be elaborated further here.
[0139] In this embodiment, the second communication node can be configured with threshold values and time intervals. Threshold values 1 and 4 can be the same or different, threshold values 2 and 5 can be the same or different, and threshold values 3 and 6 can be the same or different. Time intervals 1, 2, 3, 4, 5, and 6 can be the same or different.
[0140] Method 8: After enabling intra-frequency measurement, inter-frequency measurement is enabled only if the signal quality of neighboring intra-frequency cells is less than or equal to the eleventh threshold. In other words, inter-frequency measurement is only enabled when the signal quality of neighboring intra-frequency cells is insufficient. Specifically, after the first communication node enables intra-frequency measurement, it measures neighboring intra-frequency cells. If the RSRP, RSRQ, or SINR of the neighboring intra-frequency cell with the best signal quality is less than or equal to the eleventh threshold, the first communication node enables inter-frequency measurement. Alternatively, if the RSRP, RSRQ, or SINR of the current cell is less than or equal to a certain threshold, and the RSRP, RSRQ, or SINR of the neighboring intra-frequency cell with the best signal quality is less than or equal to the eleventh threshold, the first communication node enables inter-frequency measurement. For example, if the first communication node enables intra-frequency measurement, and the RSRP of the best-performing intra-frequency cell is less than or equal to the eleventh threshold, then the first communication node enables inter-frequency measurement.
[0141] Method Nine: If the duration of initiating same-frequency or different-frequency measurement is greater than or equal to the twelfth preset threshold, i.e., if the timer expires, the same-frequency or different-frequency measurement is restarted. Specifically, when same-frequency measurement is initiated, the first communication node simultaneously starts Timer 1. When the timer expires, the first communication node restarts same-frequency measurement and simultaneously starts Timer 1 again. When different-frequency measurement is initiated, the first communication node simultaneously starts Timer 2. When the timer expires, the first communication node restarts different-frequency measurement and simultaneously starts Timer 2 again. For example, after initiating same-frequency measurement, the first communication node starts Timer 1; when Timer 1 is started, the first communication node then initiates same-frequency measurement again.
[0142] Method 10: Any combination of Methods 1 through 9 above. For example, Method 1 and Method 7, meaning that the RSRP of the serving cell is less than or equal to a certain threshold 1, and within a certain time period 1, the decrease in the RSRP of the serving cell is greater than or equal to a certain threshold 2, the first communication node initiates in-frequency measurement. Within a certain time period 2, the decrease in the RSRP of the serving cell is greater than or equal to a certain threshold 3, the first communication node initiates out-of-frequency measurement.
[0143] For example, in methods five and seven, the second communication node configures the maximum number of NPDCCH repetitions via RRC to be greater than or equal to a certain threshold 1. Furthermore, if the RSRP decrease of the serving cell is greater than or equal to a certain threshold 2 within a certain time period 1, the first communication node initiates in-frequency measurement. If the RSRP decrease of the serving cell is greater than or equal to a certain threshold 3 within a certain time period 2, the first communication node initiates out-of-frequency measurement.
[0144] For example, in methods one and three, the serving cell's RSRP is less than or equal to a certain threshold 1, and the RRC receives a loss-of-synchronization indication greater than or equal to a threshold 2 within a certain time period 1. The first communication node then initiates in-frequency measurement. If the RRC receives a loss-of-synchronization indication greater than or equal to a threshold 3 within a certain time period 2, the first communication node initiates out-of-frequency measurement.
[0145] For example, in methods one and nine, if the RSRP of the serving cell is less than or equal to a certain threshold value 1 and timer 1 times out, the first communication node initiates same-frequency measurement. If the RSRP of the serving cell is less than or equal to a certain threshold value 2 and timer 2 times out, the first communication node initiates inter-frequency measurement.
[0146] In one implementation, the validity of a measurement value refers to the fact that a measurement value is valid when the conditions are not met, and measurements at the same frequency, different frequency, a specific frequency point, or a specific cell can be discontinued; otherwise, the measurement value is invalid, and measurements at the same frequency, different frequency, a specific frequency point, or a specific cell need to be initiated. If the first communication node again meets the triggering conditions for measurement at the same frequency or different frequency, as described in methods one to ten above, and if the measurement at the same frequency or different frequency, a specific frequency point, or a specific neighboring cell meets the limiting conditions, the first communication node will no longer perform measurements at the same frequency or different frequency, a specific frequency point, or a specific neighboring cell; conversely, if the limiting conditions are not met, the first communication node will trigger measurements at the same frequency or different frequency, a specific frequency point, or a specific neighboring cell again.
[0147] The first communication node initiates intra-frequency or inter-frequency measurement and obtains measurement results for a neighboring cell, but does not trigger a radio link failure. If the first communication node again meets the triggering conditions for intra-frequency or inter-frequency measurement, as described in methods one to ten of the above embodiments, the first communication node continues to perform intra-frequency or inter-frequency measurement, especially since the first communication node is always at the cell edge, there is a situation where measurement of that cell is repeatedly triggered, thereby increasing the power consumption of the first communication node. The first communication node initiates intra-frequency or inter-frequency measurement, searches for a certain frequency point, and obtains measurement results for all neighboring cells under that frequency point, but does not trigger a radio link failure. If the first communication node again meets the triggering conditions for intra-frequency or inter-frequency measurement, as described in methods one to ten of the above embodiments, the first communication node continues to perform intra-frequency or inter-frequency measurement, thereby increasing the power consumption of the first communication node.
[0148] To avoid increasing the power consumption of the first communication node, the measurement time or number of measurements can be limited. If the limitation conditions are met, it is assumed that measurements for that cell or frequency point will no longer be performed. In this embodiment, the activation process of neighbor cell measurement is explained using the validity of the measurement value under preset measurement conditions as an example.
[0149] In this embodiment, the validity criteria for a measurement value include one of the following: Method 1, the measurement time reaches a preset threshold of thirteen at the end of the measurement. In this embodiment, for measurements of all cells or a neighboring cell at a specific frequency or frequency, a certain frequency point, it is considered that no further measurement is needed within a certain time period; otherwise, measurement can proceed. For example, the measurement result of a certain cell or a neighboring cell at a certain frequency point is considered valid within a certain time period. That is, after the start of measurement or the generation of a measurement result for a certain cell, a timer is started. If the timer does not time out, the measurement result is considered valid, and no further measurement of that cell is needed; if the timer times out, the measurement result is considered invalid, and further measurement is required.
[0150] Alternatively, the duration of the search or measurement operation reaches the fourteenth preset threshold. In this embodiment, when a search or measurement is initiated on a certain frequency point, a timer is started. If the timer does not time out, the cells searched and the cell measurement results on that frequency point are considered valid, and the search for that frequency point is no longer required. If the timer times out, the cells searched and the cell measurement results on that frequency point are considered invalid, and the measurement needs to be performed again. Alternatively, after cells are searched on a certain frequency point and the measurement results for these cells are obtained, a timer is started. If the timer does not time out, the cells searched and the cell measurement results on that frequency point are considered valid, and the search for that frequency point is no longer required. If the timer times out, the cells searched and the cell measurement results on that frequency point are considered invalid, and the measurement needs to be performed again.
[0151] Alternatively, if same-frequency or different-frequency measurement is initiated, it is considered unnecessary to initiate it again within a certain period of time. In other words, when the first communication node initiates same-frequency or different-frequency measurement, a timer is started. If the timer does not expire, it is considered that same-frequency or different-frequency measurement cannot be initiated; if it exceeds or equals a certain period of time, the measurement result is considered invalid, and measurement needs to be performed again.
[0152] The timer duration and threshold value can be configured by the second communication node via RRC messages or system messages.
[0153] Method 2: The signal quality change of the serving cell reaches the fifteenth preset threshold. In this embodiment, if the signal quality change of the serving cell is greater than or equal to a certain threshold within a certain period of time, it is considered that it can be measured again; otherwise, measurement is not required. If the increase or decrease in the signal quality (such as RSRP, RSRQ, or SINR) of the serving cell is greater than or equal to a certain threshold within a certain period of time, it is considered that the UE is moving relatively quickly, i.e., neighboring cells may have changed. If the intra-frequency inter-frequency measurement conditions are met again, intra-frequency inter-frequency measurement is triggered; otherwise, intra-frequency inter-frequency measurement is not triggered.
[0154] In this embodiment, the timer duration and threshold value can be configured by the node via RRC messages or system messages.
[0155] Method 3: The current number of measurements at the same or different frequencies is less than or equal to the sixteenth preset threshold, meaning there can be a maximum number of same or different frequency measurements. In other words, if the same-frequency trigger condition is met, and the number of same-frequency measurements is less than or equal to the maximum number of measurements (1), then same-frequency measurement is enabled; otherwise, it is disabled. If the different-frequency trigger condition is met, and the number of different-frequency measurements is less than or equal to the maximum number of measurements (2), then same-frequency measurement is enabled; otherwise, it is disabled. The maximum number of measurements can be greater than or equal to 1, can be a fixed value, or can be configured by the node. The maximum number of measurements (1) and the maximum number of measurements (2) can be the same or different.
[0156] Method four is a combination of methods one through three above. For example, methods one and two. That is, when the first communication node performs intra-frequency measurement, timer 1 is started. If the first communication node meets the triggering conditions for intra-frequency measurement, and timer 1 does not time out, and within a certain time period, the decrease in the serving cell's RSRP is greater than or equal to a certain threshold, the first communication node initiates intra-frequency measurement. When the first communication node performs intra-frequency measurement, timer 2 is started. If the first communication node meets the triggering conditions for inter-frequency measurement, and timer 2 does not time out, and within a certain time period, the decrease in the serving cell's RSRP is greater than or equal to a certain threshold, the first communication node initiates inter-frequency measurement.
[0157] In one implementation, the measurement method applied to the first communication node further includes: reporting uplink data carrying a neighboring cell measurement status indication to the second communication node. That is, when the first communication node meets the inter-frequency measurement conditions, it sends an uplink signal or message to notify the node.
[0158] If the first communication node meets the inter-frequency measurement conditions, it can notify the node by sending an uplink signal or message. The second communication node then becomes aware of the first communication node's behavior and can avoid scheduling the first communication node if the first node is performing inter-frequency measurements. The second communication node can optionally configure measurement settings for the first communication node, including the frequency points to be measured, neighboring cells, etc. Figure 4 This is a flowchart illustrating the transmission process of measurement configuration information according to an embodiment of this application. In this embodiment, taking a UE as the first communication node and an eNB as the second communication node as an example, the transmission process of measurement configuration information is explained. Figure 4 As shown, this embodiment includes: S410-S450.
[0159] S410, Trigger neighbor cell measurement.
[0160] S420: Report the measurement status indication of the neighboring cell to the base station.
[0161] S430: Send measurement configuration information to the UE.
[0162] S440, Obtain the measurement results of the neighboring cell.
[0163] S450, triggers RRC reconstruction.
[0164] In one embodiment, such as Figure 4 As shown in the left figure, the eNB sends measurement configuration information to the UE. In one embodiment, as... Figure 4 As shown in the right figure, the eNB did not send measurement configuration information to the UE.
[0165] In this embodiment, the neighbor cell measurement status indication may be an indication that the first communication node has met the requirements for same-frequency or different-frequency measurement, an indication that the UE is about to enable same-frequency or different-frequency measurement, or a request to enable same-frequency or different-frequency measurement, etc. The first communication node informs the second communication node by sending an uplink signal or uplink message. In this embodiment, the uplink data of the neighbor cell measurement status indication is reported to the second communication node in one of the following ways:
[0166] Method 1: The first communication node notifies the second communication node by sending a preamble. The second communication node configures dedicated preamble resources via system messages or RRC messages. For example, the second communication node configures time-frequency resources (including period, start time, frequency domain location, etc.) for a certain Physical Random Access Channel (PRACH). When the first communication node meets the inter-frequency measurement conditions, it sends a preamble on that resource. Upon receiving the preamble on that resource, the second communication node knows that the first communication node has met the inter-frequency measurement conditions. Alternatively, the second communication node configures preamble resources (including the range of preamble sequence numbers, start sequence number, and number of preambles). When the first communication node meets the inter-frequency measurement conditions, it sends the preamble. Upon receiving the preamble, the second communication node knows that the first communication node has met the inter-frequency measurement conditions.
[0167] Method 2: The first communication node notifies the second communication node by sending a PUCCH message. The second communication node configures dedicated PUCCH resources via system messages or RRC messages. For example, the node configures a time-frequency resource for a certain PUCCH (including period, start time, frequency domain position, etc.). When the first communication node meets the inter-frequency measurement conditions, it sends a PUCCH on that resource. Upon receiving a preamble on that resource, the second communication node knows that the first communication node has met the inter-frequency measurement conditions. The PUCCH sequence can be 1 bit, such as SR.
[0168] Method 3: The first communication node notifies the second communication node by sending a MAC CE message. When the first communication node meets the inter-frequency measurement conditions, it sends a MAC CE message to the second communication node. Figure 5 This is a schematic diagram illustrating the format of a MAC CE message provided in an embodiment of this application. For example... Figure 5As shown, the MAC CE message includes: R bits and measurement flag bits. R represents a reserved bit and is optional; the measurement flag bit (e.g., the measurement flag is represented by "measurment") indicates whether the inter-frequency measurement conditions are met. For example, if all the measurement flag bits are 1, it means the user has met the inter-frequency measurement conditions.
[0169] Method 4: The first communication node notifies the second communication node by sending an RRC message. When the first communication node meets the inter-frequency measurement conditions, it sends an RRC message to the second communication node. The RRC message can be a measurement report, which includes an indicator bit indicating whether the inter-frequency measurement conditions have been met. For example, a single bit, where 1 indicates that the first communication node has met the inter-frequency measurement conditions. The RRC message can also be a new RRC message.
[0170] When the second communication node receives the message or signal, it considers that the first communication node has started inter-frequency measurement at a certain moment. Conversely, if the first communication node successfully sends the message or signal, it starts inter-frequency measurement at a certain moment. That is, the inter-frequency measurement is initiated at a first preset time as described in the above embodiments. In the embodiments, the method for determining the first preset time includes one of the following:
[0171] Method 1: A second preset time after sending uplink data. In this embodiment, the second preset time refers to a certain period of time after the first communication node successfully sends uplink data, at which point inter-frequency measurement is initiated. That is, the first communication node begins inter-frequency measurement a certain period of time after successfully sending an uplink signal or message. For example, after successfully sending a preamble, PUCCH, MAC CE, or RRC message at time n, the first communication node begins inter-frequency measurement at time n+k (i.e., the second preset time), where k is configured for the second communication node or is a fixed value.
[0172] Method 2: The moment the feedback information from the second communication node is received. In this embodiment, after receiving the feedback, the first communication node begins inter-frequency measurement. The first communication node begins inter-frequency measurement after successfully receiving the preamble feedback RAR or the MAC CE HARQ feedback (such as the Physical Hybrid ARQ Indicator Channel (PHICH), PDCCH) or the HARQ feedback of the RRC message.
[0173] Method 3: A third preset time interval carried in the uplink data. In this embodiment, the first communication node carries information about the third preset time interval in the uplink signal or uplink message. The PUCCH carries this information, for example, indicating how many seconds after which the first communication node will begin inter-frequency measurement. The PUCCH sequence represents time intervals, with 11 representing 3ms. Alternatively, the MAC CE carries this information, for example, indicating how many seconds after which the first communication node will begin inter-frequency measurement. Figure 6 This is a schematic diagram illustrating another MAC CE message format provided in an embodiment of this application. For example... Figure 6 As shown, the MAC CE message in this embodiment includes R bits and measurement time bits. The measurement time is composed of a bit string representing the time, with 11 representing 3ms. Alternatively, the RRC message carries measurement time information, such as the time interval after which the first communication node begins inter-frequency measurement. In this embodiment, the measurement time information is composed of a bit string or an enumerated value.
[0174] In one implementation, the measurement method applied to the first communication node further includes: determining the inter-frequency measurement time. In this embodiment, after the first communication node meets the conditions for inter-frequency measurement, it may not notify the base station. However, to avoid the base station scheduling the first communication node, the first and second communication nodes agree on the same rules. After the rules are met, the first communication node starts inter-frequency measurement, and the second communication node avoids scheduling the first communication node.
[0175] The rule can be that the first communication node has no data transmission. That is, inter-frequency measurement begins when the first communication node meets the conditions for inter-frequency measurement and has no data transmission.
[0176] The first communication node can determine that there is no data transmission in one of the following ways:
[0177] Method 1: The MAC does not receive or send a MAC SDU message within a sixth preset time period. In this embodiment, the MAC does not receive or send a MAC SDU for a certain period of time. For example, if the MAC does not receive or send a MAC SDU, a timer is started for a certain duration. When the MAC receives or sends a MAC SDU, the timer is reset to zero. If the timer times out, it is assumed that the first communication node has no data transmission, and inter-frequency measurement is then initiated.
[0178] Method 2: The RLC or MAC buffer is empty within a seventh preset time period. In this embodiment, the RLC or MAC has no data packets to be transmitted within a certain time period; for example, when the MAC or RLC buffer has no data packets to be transmitted and is empty, a timer is started, and the timer duration is equal to a certain time. When the MAC or RLC buffer is not empty, the timer is reset to zero. When the timer times out, it is assumed that the first communication node has no data transmission, and inter-frequency measurement is then initiated.
[0179] Method 3: In this embodiment, the service latency is greater than or equal to the sixteenth preset threshold. For example, if the latency requirement of the bearer, DRB, or logical channel mapped data of the first communication node is greater than a certain threshold, it is considered that the service is not sensitive to latency requirements, and the first communication node can enable inter-frequency measurement.
[0180] Method four is any combination of methods one through three above. For example, a combination of methods one and three, meaning that when the latency requirement of the first communication node is greater than a certain threshold, and the MAC does not receive or send a MAC SDU within a certain time, the first communication node can start inter-frequency measurement.
[0181] In one implementation, taking preset measurement conditions as measurement configuration information as an example, the process of whether to enable neighbor cell measurement is explained. In this embodiment, the parameters for cell selection between the same and different frequencies broadcast by the second communication node in the system information broadcast include: frequency point, frequency point offset value, cell offset value, etc. Cell selection is required during RRC reconstruction. During the cell selection process, the first communication node selects a cell according to the cell selection parameters broadcast by the system information. Based on the broadcast frequency point or neighbor cells, neighbor cells are measured, and the optimal target cell is selected by applying cell offset and other values.
[0182] In this embodiment, the measurements for different frequencies within the same frequency are for cell selection services required during RRC reconstruction, and the connected-state measurement configuration needs to provide parameters for cell selection. In connected state, the second communication node configures the measurement configuration for the first communication node. Figure 7 This is a flowchart illustrating the transmission of measurement configuration information in a connected state, as provided in an embodiment of this application. Figure 7 As shown, this embodiment includes: S510-S530.
[0183] S510, trigger neighbor cell measurement.
[0184] S520, Obtain the measurement results of the neighboring cell.
[0185] S530, triggers RRC reconstruction.
[0186] In this embodiment, the second communication node configures measurement configuration information for the first communication node. The measurement configuration information includes configuration information for the same frequency and / or different frequencies, and the measurement configuration information includes one of the following:
[0187] Method 1: First measurement configuration information carried in the RRC message. In this embodiment, the first measurement configuration information includes: measurement frequency point values, and cell selection parameters for each frequency point. In this embodiment, the second communication node provides the first measurement configuration information for cell selection via the RRC message. The first measurement configuration information includes the measured frequency point values, and cell selection parameters for each frequency point, including the minimum receive level of neighboring cells' RSRP and RSRQ, the offset values of neighboring cells' RSRP and RSRQ, a neighboring cell list, etc. For example, the first measurement configuration information includes the configuration of multiple frequency points, wherein the configuration of a certain frequency point includes the ARFCN of a certain frequency point, and the minimum receive level of neighboring cells' RSRP and RSRQ, the offset values of neighboring cells' RSRP and RSRQ, a neighboring cell list, and other parameters for that frequency point. The first communication node receives the first measurement configuration information, measures the frequency points and neighboring cells included in the first measurement configuration information, and selects the target cell according to the S criterion based on the cell selection parameters given in the first measurement configuration information.
[0188] Method 2: Second measurement configuration information carried in the RRC message. In this embodiment, the second measurement configuration information includes: measurement frequency index. In this embodiment, the second communication node provides the measurement configuration for cell selection via the RRC message. The system information provides the correspondence between frequency points and frequency indexes, and the second measurement configuration information includes the measured frequency index. For example, the system information provides the configuration of multiple frequency points, where the configuration of a certain frequency point includes ARFCN, the frequency index value, and parameters such as the minimum reception level of RSRP and RSRQ of neighboring cells under that frequency point, the offset values of RSRP and RSRQ of neighboring cells, and a neighboring cell list. The second measurement configuration information provides multiple frequency index values. The first communication node receives the second measurement configuration information, finds the correspondence between the frequency index given in the second measurement configuration information and the frequency points given in the system information, and selects the target cell according to the S criterion based on the cell selection parameters given in the system information.
[0189] Alternatively, the system information provides the correspondence between frequency points and frequency point indices, or the order of the frequency points. The measurement configuration specifies the frequency points to be measured via a bit string. The first bit of the bit string corresponds to the same frequency, the second bit to the first different frequency broadcast by the system information or the different frequency with the smallest frequency point index, and so on, with each bit corresponding to a frequency point broadcast by the system information in ascending order. Setting a bit to 1 activates the measurement of that frequency point; for example, a bit string of 1010 corresponds to the second different frequency point M in the system information. Upon receiving the bit string, the first communication node activates the measurement of both the same frequency and frequency point M.
[0190] Method 3: Measurement configuration information activated by MAC CE message. In this embodiment, the second communication node activates the measurement via MAC CE. The system information or measurement configuration provides the measurement configuration, such as in Method 1 and Method 2, including the frequency point, frequency point index, MAC CE activation of the measurement, or providing the index of the frequency point to be measured and activating the measurement of that frequency point. For example, the system information provides the configuration of multiple frequency points, where the configuration of a certain frequency point includes ARFCN, the frequency point index value, and parameters such as the minimum receive level of RSRP and RSRQ of neighboring cells under that frequency point, the offset values of RSRP and RSRQ of neighboring cells, and the neighboring cell list. The MAC CE carries an activation measurement flag. Figure 8 This is a schematic diagram illustrating another MAC CE message format provided in an embodiment of this application. For example... Figure 8 As shown, the MAC CE message format in this embodiment includes: an R bit and a measurement activation flag bit. As shown in the figure below, the measurement activation flag bit indicates whether the measurement is activated at the same frequency or a different frequency. For example, a measurement activation flag of 01 indicates activation at the same frequency, 10 indicates activation at a different frequency, and 11 indicates activation at both the same and different frequencies. After receiving the MAC CE, the first communication node initiates the corresponding measurement based on the activated measurement flag bit.
[0191] Alternatively, the MAC CE message carries the frequency index of the active measurement. In this embodiment, the MAC CE message carries either multiple or one frequency indexes of the active measurement. Figure 9 This is a schematic diagram illustrating another format of a MAC CE message provided in an embodiment of this application. For example... Figure 9 As shown, the MAC CE message carries the R bit and can also carry one or more frequency indexes for activating measurements. For example, it can carry frequency index 1, frequency index 2, frequency index 3, ..., frequency index N for activating measurements. N can be a positive integer greater than or equal to 1. The frequency index for activating measurements identifies the frequency index for which the measurement is initiated; for example, the frequency index for activating measurements is 11, corresponding to frequency point M in the system information. After receiving the MAC CE, the first communication node initiates the measurement of frequency point M according to the frequency index for activating measurements.
[0192] Alternatively, the MAC CE message carries a bit string. In this embodiment, the MAC CE message carries a bit string, where the first bit corresponds to the same frequency, the second bit corresponds to the first different frequency or the different frequency with the smallest frequency point index broadcast by the system information, and so on, with each bit corresponding to the frequency point broadcast by the system information in ascending order. Figure 10 This is a schematic diagram illustrating another format of a MAC CE message provided in an embodiment of this application. For example... Figure 10As shown, the MAC CE message format can carry both R bits and bit strings. Setting a certain bit to 1 corresponds to enabling frequency point measurement. For example, if the bit string is 1010, it corresponds to the second different frequency point M in the system information. After receiving the MAC CE, the first communication node enables the measurement of both the same frequency and frequency point M based on the bit string.
[0193] Method 4: Measurement configuration information activated by downlink control information (DCI) message. In this embodiment, the second communication node activates the measurement via a DCI message. The system information or measurement configuration provides the measurement configuration, such as in Method 1 and Method 2, including the frequency point, frequency point index, DCI activation measurement, or provides the index of the frequency point to be measured and activates the measurement for that frequency point. For example, the system information provides the configuration for multiple frequency points, where the configuration for a certain frequency point includes ARFCN, the frequency point index value, and parameters such as the minimum receive level of RSRP and RSRQ of neighboring cells under that frequency point, the offset values of RSRP and RSRQ of neighboring cells, and a neighboring cell list. The DCI carries an activation measurement flag bit, which indicates whether the measurement is activated on the same frequency or a different frequency. For example, a measurement activation bit of 01 indicates activation on the same frequency, 10 indicates activation on a different frequency, and 11 indicates activation on both the same and different frequencies. After receiving the DCI, the first communication node starts the corresponding measurement according to the activation measurement flag bit.
[0194] Alternatively, the DCI message carries the frequency index for activating the measurement. In this embodiment, the DCI message carries the frequency index for activating the measurement; it can carry multiple or one index. The frequency index for activating the measurement identifies the frequency index for which the measurement is initiated. For example, the frequency index for activating the measurement is 11, corresponding to frequency point M in the system information. After receiving the DCI, the first communication node initiates the measurement at frequency point M according to the frequency index for activating the measurement.
[0195] Alternatively, the DCI message carries a bit string. In an embodiment, the DCI carries a bit string, where the first bit corresponds to the same frequency, the second bit is the first different frequency broadcast by the system information or the different frequency with the smallest frequency point index, and so on, with each bit corresponding to a frequency point broadcast by the system information in ascending order. For example, setting a certain bit to 1 corresponds to enabling the measurement of a frequency point; for instance, if the bit string is 1010, it corresponds to the second different frequency point M in the system information. After receiving the DCI, the first communication node enables the measurement of the same frequency and frequency point M according to the bit string.
[0196] In one implementation, when measuring neighboring cells, the first communication node needs to measure not only the NRS signal but also identify the cell identifier of the neighboring cell. If the first communication node does not know the time information of the neighboring cell, such as the System Frame Number (SFN) and time slot, it needs to perform a blind search for reference signals (e.g., NRS, SSS, PSS), which consumes a significant amount of time and power. To reduce the power consumption of the first communication node, the node configures or notifies the first communication node of the time-frequency information of the neighboring cell, allowing the first communication node to detect signals and perform measurements at the corresponding time-frequency.
[0197] In this embodiment, taking the preset measurement condition of neighboring cell time-frequency information as an example, the method of whether to enable neighboring cell measurement is explained.
[0198] In this embodiment, the second communication node configures the time-frequency information of neighboring cells (at the same or different frequencies) of the first communication node via system information broadcast or RRC messages. The time-frequency information of neighboring cells at the same or different frequencies can be shared time-domain or frequency-domain information for all neighboring cells within a frequency point, or it can be the time-frequency information of each individual cell. If the second communication node provides both the shared time-domain or frequency-domain information for the frequency point and the time-domain or frequency-domain information for certain cells (represented by cell identifiers), then for that frequency point, the first communication node will use the time-frequency information of a specific cell for that cell, and the shared time-frequency information for other cells.
[0199] In the embodiments, the time-domain information may be the time-domain location of the measurement time or the transmission time of the measurement signal, including the start time, period, duration, etc. of the measurement time or the transmission time of the measurement signal, or the number of radio frames, subframes, slots, or symbols of the offset of the neighboring cell relative to the serving cell.
[0200] In this embodiment, the frequency domain information may also be the measurement frequency point, measurement bandwidth, or the frequency domain position of the measurement signal, including the starting position of the measurement, the bandwidth of the frequency domain, etc.
[0201] For example, the second communication node configures information for both co-frequency and multiple inter-frequency cells via system information broadcast or RRC reconfiguration messages. This co-frequency and inter-frequency information includes the time-domain information of neighboring cells within that frequency point, which includes the number of subframes in which the neighboring cell is offset relative to the serving cell. Simultaneously, the second communication node identifies some cells and configures their own proprietary time-domain information, which also includes the number of subframes in which the neighboring cell is offset relative to the serving cell.
[0202] After receiving the data, for a given frequency point, if neighboring cells with indicated cell identifiers are identified, the first communication node uses the number of subframes offset from the serving cell to obtain the measurement time or transmission time of the measurement signal for these neighboring cells. For other cells, the first communication node uses the number of subframes offset from the serving cell to obtain the measurement time or transmission time of the measurement signal for the neighboring cells whose frequency function is used.
[0203] In one implementation, when a second communication node configures neighboring cells for measurement by a first communication node, if the second communication node configures all neighboring cells near the serving cell to the first communication node for measurement, this increases the power consumption of the first communication node and makes the measurement inefficient. However, the second communication node can determine the location of the first communication node based on the neighboring cell information reported by the first communication node. For example, if the first communication node reports that its strongest neighboring cell is X, the second communication node can determine that the first communication node is near neighboring cell X, and then configure the first communication node to measure neighboring cells near neighboring cell X, thereby greatly improving the effectiveness of the measurement. In view of this, this application proposes a measurement method applied to a first communication node, comprising: sending uplink data carrying the strongest neighboring cell information of the first communication node to a second communication node; and receiving neighboring cell measurement configuration information fed back by the second communication node, wherein the neighboring cell measurement configuration information is measurement information configured by the second communication node based on the strongest neighboring cell information.
[0204] In this embodiment, the second communication node enables the first communication node to report its strongest neighbor cell via system information. If enabled, the first communication node carries the strongest neighbor cell in its uplink data. The uplink data can be an RRC message or a MAC CE. The RRC message can be an RRC message initiated by the first communication node from idle state to connected state, or an RRC message initiated in idle state, and includes at least an RRC establishment request, an RRC reconstruction request, an RRC recovery request, or an RRC early data request. The MAC CE can be multiplexed with the RRC message. The strongest neighbor cell may not include the serving cell; it can be the neighbor cell with the strongest signal quality, the neighbor cell with the largest RSRP / RSRQ measurement value, or the neighbor cell with an RSRP / RSRQ greater than or equal to a certain threshold and the largest RSRP / RSRQ measurement value, etc.
[0205] The second communication node can enable the first communication node to report the strongest neighbor cell for a specific frequency or frequencies, or to report the strongest neighbor cell for all frequencies broadcast in the system information. For example, the second communication node broadcasts information about co-frequency and inter-frequency communication via the system information. This information may include the frequency, frequency index, and neighbor cell identifier. For each frequency, the second communication node uses 1 bit, where 1 indicates that the first communication node is enabled to report the strongest neighbor cell for that frequency; otherwise, it is disabled. Alternatively, the second communication node uses 1 bit, where 1 indicates that the first communication node is enabled to report the strongest neighbor cell for each frequency (both co-frequency and inter-frequency in the system information broadcast); otherwise, it is disabled.
[0206] Alternatively, the second communication node broadcasts co-frequency information via system information. This co-frequency information includes the frequency point, frequency point index, and neighboring cell identifiers. The second communication node uses 1 bit, where 1 indicates that the first communication node is enabled to report the strongest neighboring cell at the same frequency; otherwise, it is disabled. Alternatively, the second communication node uses 1 bit, where 1 indicates that the first communication node is enabled to report the strongest neighboring cell among all frequency points (both co-frequency and inter-frequency broadcasts in the system information); otherwise, it is disabled.
[0207] After receiving the information, the first communication node performs measurements based on the system information to obtain the strongest neighboring cells of the same and different frequencies. If a threshold value for the strongest neighboring cell is configured, the RSRP / RSRQ of that neighboring cell is greater than or equal to that threshold value. The method for carrying the strongest neighbor cell in the RRC message includes one of the following: If the second communication node enables the first communication node to report the strongest neighbor cells for certain frequencies, the first communication node carries a list in the RRC message, each item including the frequency index and the cell identifier of the corresponding strongest neighbor cell; if the second communication node enables the first communication node to report the strongest neighbor cells for all frequencies, the first communication node carries a list in the RRC message, each item including the frequency index and the cell identifier of the corresponding strongest neighbor cell; or, the first communication node carries a list in the RRC message, each item carrying the cell identifier of the corresponding strongest neighbor cell in the order of the broadcast frequencies or the order of the frequency index; if the second communication node enables the first communication node to report the strongest neighbor cell on the same frequency, the first communication node carries the cell identifier of the strongest neighbor cell in the RRC message; if the second communication node enables the first communication node to report the strongest neighbor cell among all frequencies, the first communication node carries the cell identifier of the strongest neighbor cell and the corresponding frequency index in the RRC message.
[0208] The method for carrying the strongest neighbor cell in the MAC CE includes one of the following: If the second communication node enables the first communication node to report the strongest neighbor cell for certain frequency points, the first communication node carries the frequency point index and the corresponding strongest neighbor cell's cell identifier through the MAC CE; if the second communication node enables the first communication node to report the strongest neighbor cell for all frequency points, the first communication node carries the frequency point index and the corresponding strongest neighbor cell's cell identifier through the MAC CE; or, the first communication node carries the cell identifier through the MAC CE, with each item carrying the corresponding strongest neighbor cell's cell identifier sequentially according to the order of the broadcast frequency points or the order of the frequency point index; if the second communication node enables the first communication node to report the strongest neighbor cell on the same frequency, the first communication node carries the strongest neighbor cell's cell identifier through the MAC CE; if the second communication node enables the first communication node to report the strongest neighbor cell among all frequency points, the first communication node carries the strongest neighbor cell's cell identifier and the corresponding frequency point index through the MAC CE.
[0209] Alternatively, the first communication node may also report the measurement results of the strongest neighbor cell: RSRP and / or RSRQ and / or SINR.
[0210] After receiving the information, the first communication node performs measurements based on the system information to obtain the strongest neighboring cells for both co-frequency and inter-frequency connections. The method for carrying the strongest neighboring cell in the RRC message includes one of the following: If the second communication node enables the first communication node to report the strongest neighboring cells for certain frequencies, the first communication node carries a list via the RRC message, each item including the frequency index, the corresponding strongest neighboring cell's cell identifier, and the strongest neighboring cell's measurement result RSRP and / or RSRQ; if the second communication node enables the first communication node to report the strongest neighboring cells for all frequencies, the first communication node carries a list via the RRC message, each item including the frequency index, the corresponding strongest neighboring cell's cell identifier, and the strongest neighboring cell's measurement result RSRP and / or RSRQ; or, the first communication node carries the strongest neighboring cell via the RRC message... The system carries a list, with each item sequentially carrying the cell identifier and measurement result RSRP and / or RSRQ of the strongest neighbor cell, either in the order of the broadcast frequency or the frequency index. If the second communication node enables the first communication node to report the strongest neighbor cell on the same frequency, the first communication node carries the cell identifier and measurement result RSRP and / or RSRQ of the strongest neighbor cell via an RRC message. If the second communication node enables the first communication node to report the strongest neighbor cell among all frequency points, the first communication node carries the cell identifier of the strongest neighbor cell, the corresponding frequency index, and the measurement result RSRP and / or RSRQ of the strongest neighbor cell via an RRC message.
[0211] The method for carrying the strongest neighbor cell in the MAC CE includes one of the following: If the second communication node enables the first communication node to report the strongest neighbor cell for certain frequencies, the first communication node carries the frequency index, the cell identifier of the corresponding strongest neighbor cell, and the measurement result RSRP and / or RSRQ of the strongest neighbor cell through the MAC CE; If the second communication node enables the first communication node to report the strongest neighbor cell for all frequencies, the first communication node carries the frequency index, the cell identifier of the corresponding strongest neighbor cell, and the measurement result RSRP and / or RSRQ of the strongest neighbor cell through the MAC CE; Alternatively, the first communication node carries the cell identifier through the MAC CE, with each item carrying the cell identifier of the corresponding strongest neighbor cell and the measurement result RSRP and / or RSRQ of the strongest neighbor cell sequentially according to the order of the broadcast frequencies or the order of the frequency index; If the second communication node enables the first communication node to report the strongest neighbor cell on the same frequency, the first communication node carries the cell identifier of the strongest neighbor cell and the measurement result RSRP and / or RSRQ of the strongest neighbor cell through the MAC CE; If the second communication node enables the first communication node to report the strongest neighbor cell among all frequencies, the first communication node carries the strongest neighbor cell through the MAC CE. The CE carries the cell identifier of the strongest neighbor cell, the corresponding frequency index, and the measurement results of the strongest neighbor cell, RSRP and / or RSRQ.
[0212] In one embodiment, Figure 11 This is a structural block diagram of a measurement configuration provided in an embodiment of this application. This embodiment is applied to a first communication node. Exemplarily, the first communication node is a terminal (e.g., a UE). Figure 11 As shown, this embodiment includes a receiver 610 and an activation measurement module 620.
[0213] Receiver 610 is configured to receive preset measurement conditions configured by the second communication node.
[0214] Enable measurement module 620 and configure it to start measurement of the neighboring cells corresponding to the serving cell where the first communication node is located according to preset measurement conditions.
[0215] The measuring device provided in this embodiment is configured to achieve... Figure 1 The measurement method in the illustrated embodiment is similar in principle and technical effect to the measurement device provided in this embodiment, and will not be described again here.
[0216] In one embodiment, the preset measurement conditions include one of the following: meeting the trigger conditions for enabling same-frequency or different-frequency measurement; the validity of the measurement value; measurement configuration information; neighboring cell time-frequency information. The trigger condition for the validity of the measurement value refers to the fact that when the measurement value of the same-frequency, different-frequency, frequency point, or neighboring cell meets the preset conditions, it is not necessary to measure the same-frequency, different-frequency, frequency point, or neighboring cell.
[0217] In one embodiment, when the trigger condition for enabling in-frequency or inter-frequency measurement is a deterioration in the signal quality of the serving cell where the first communication node is located, the determination method for the deterioration of the signal quality of the serving cell where the first communication node is located includes at least one of the following: within a first preset time period, the signal quality of the serving cell is less than or equal to a first preset threshold; within a second preset time period, the downlink radio link quality of the serving cell is less than or equal to a second preset threshold; the Radio Resource Control (RRC) receives a loss-of-synchronization indication reported by the Physical Layer; within a third preset time period, the number of loss-of-synchronization indications reported by the Physical Layer to the RRC is greater than or equal to a third preset threshold; within a fourth preset time period, the number of consecutive loss-of-synchronization indications reported by the Physical Layer to the RRC is greater than or equal to a fourth preset threshold; within a fourth preset time period... The following conditions must be met: the number of Physical Downlink Control Channel (PDCCH) messages not detected is greater than or equal to the fifth preset threshold; the number of consecutively undetected PDCCH messages is greater than or equal to the sixth preset threshold; the maximum number of repetitions of Narrowband Physical Downlink Control Channel (NPDCCH) is greater than or equal to the seventh preset threshold; the maximum number of repetitions of Narrowband Physical Downlink Shared Channel (NPDSCH) is greater than or equal to the eighth preset threshold; the Hybrid Automatic Repeat Transmission (HARQ) retransmission rate is greater than or equal to the ninth preset threshold; the signal quality change of the serving cell is greater than or equal to the tenth preset threshold within the fifth preset time period; the signal quality of co-frequency neighboring cells is less than or equal to the eleventh preset threshold, and inter-frequency measurement is initiated; the duration of initiating co-frequency or inter-frequency measurement is greater than or equal to the twelfth preset threshold.
[0218] In one embodiment, the signal quality of the serving cell or neighboring cell is characterized by at least one of the following parameters: RSRP value; RSRQ value; SINR value.
[0219] In one embodiment, the downlink radio link quality of the serving cell is characterized by at least one of the following parameters: RSRP value; Bit Error Rate (BLER) value.
[0220] In one embodiment, the criteria for determining the validity of a measurement value include at least one of the following: the duration of the measurement ends reaches a thirteenth preset threshold; the duration of the search or measurement begins reaches a fourteenth preset threshold; the signal quality change value of the serving cell reaches a fifteenth preset threshold; and the current number of measurements at the same or different frequencies is less than or equal to a sixteenth preset threshold.
[0221] In one embodiment, the measurement device applied to the first communication node further includes: a reporting module configured to report uplink data carrying a neighboring cell measurement status indication to the second communication node, wherein the neighboring cell measurement status indication includes at least one of the following: an indication that same-frequency or different-frequency measurement is satisfied; an indication that same-frequency or different-frequency measurement is about to be started; or an indication that same-frequency or different-frequency measurement is requested to be started.
[0222] In one embodiment, the uplink data carrying the neighbor cell measurement status indication includes one of the following: random access preamble; PUCCH message; MAC CE message; RRC message.
[0223] In one embodiment, after reporting uplink data carrying a neighbor cell measurement status indication to the second communication node, the method further includes:
[0224] The start time of inter-frequency measurement is determined in one of the following ways: the first preset time after successfully sending uplink data is used as the start time; the time when feedback information from the second communication node is successfully received is used as the start time; or the second preset time carried in the uplink data is used as the start time.
[0225] In one embodiment, the measuring device applied to the first communication node further includes: a determination module configured to determine the inter-frequency measurement time, the inter-frequency measurement time including: the first communication node not transmitting data to the second communication node, or the first communication node not receiving data from the second communication node.
[0226] In one embodiment, the determination of the inter-frequency measurement time includes one of the following: the MAC does not receive or send a MAC SDU message within a sixth preset time period; the buffer of the RLC or MAC is empty within a seventh preset time period; or the service delay is greater than or equal to a seventeenth preset threshold value.
[0227] In one embodiment, the measurement configuration information includes one of the following: first measurement configuration information carried by an RRC message; second measurement configuration information carried by an RRC message; measurement configuration information activated by a MAC CE message; or measurement configuration information activated by a downlink control information (DCI) message.
[0228] In one embodiment, the first measurement configuration information includes: measurement frequency point value, and cell selection parameters for each frequency point; the second measurement configuration information includes: measurement frequency point index.
[0229] In one embodiment, the measurement configuration information activated by the MAC CE message includes one of the following: the MAC CE message carries an activation measurement flag; the MAC CE message carries a frequency index for the activated measurement; the MAC CE message carries a bit string; the activation measurement flag is used to indicate whether same-frequency measurement and / or different-frequency measurement are activated; the bit string is used to indicate whether measurement is enabled for a certain frequency represented by the bit.
[0230] In one embodiment, the measurement configuration information activated by the DCI message includes one of the following: the DCI message carries an activation measurement flag bit; the DCI message carries a frequency index of the activated measurement; the DCI message carries a bit string; the activation measurement flag bit is used to indicate whether the activation is for same-frequency measurement and / or different-frequency measurement; the bit string is used to indicate whether the measurement is enabled for a certain frequency represented by the bit bit.
[0231] In one embodiment, neighbor cell time-frequency information is configured via system information broadcast or RRC message for neighbor cells of the same or different frequencies.
[0232] In one embodiment, the neighboring cell time-frequency information includes: the time-domain location of the measurement time or the transmission time of the measurement signal; the measurement frequency point, measurement bandwidth, or the frequency-domain location of the measurement signal.
[0233] In one embodiment, Figure 12 This is a structural block diagram of another measuring device provided in an embodiment of this application. This embodiment is applied to a first communication node. Figure 12 As shown, this embodiment includes: a transmitter 710.
[0234] Transmitter 710 is configured to send uplink data carrying the strongest neighbor information of the first communication node to the second communication node.
[0235] The measuring device provided in this embodiment is configured to achieve... Figure 2 The measurement method in the illustrated embodiment is similar in principle and technical effect to the measurement device provided in this embodiment, and will not be described again here.
[0236] In one embodiment, the measuring device applied to the first communication node further includes: a receiver configured to receive strongest neighbor cell enable indication information sent by the second communication node, the strongest neighbor cell enable indication information being used to indicate whether the first communication node supports reporting the strongest neighbor cell at a preset frequency point.
[0237] In one embodiment, the uplink data carrying the strongest neighbor cell information of the first communication node includes: an RRC message initiated in the idle state or inactive state; and a MAC CE message.
[0238] In one embodiment, the RRC message carries the strongest neighbor information in one of the following ways:
[0239] The RRC message carries a list including frequency index and the cell identifier of the corresponding strongest neighbor cell; the RRC message carries a list including frequency index and the cell identifier of the corresponding strongest neighbor cell; the RRC message carries a list of cell identifiers of the strongest neighbor cells in order of frequency or frequency index; the RRC message carries the cell identifier of the strongest neighbor cell.
[0240] In one embodiment, the MAC CE message carries the strongest neighbor cell information in one of the following ways: the MAC CE message carries a list including a frequency index and the cell identifier of the corresponding strongest neighbor cell; the MAC CE message carries a list including a frequency index and the cell identifier of the corresponding strongest neighbor cell; the MAC CE message carries a list of cell identifiers of the strongest neighbor cells in order of frequency or frequency index; the MAC CE message carries the cell identifier of the strongest neighbor cell on the same frequency.
[0241] In one embodiment, the strongest neighbor cell includes one of the following: the neighbor cell with the largest reference signal received power (RSRP) or reference signal received quality (RSRQ) or SINR measurement value; or the neighbor cell with the largest RSRP, RSRQ, or SINR measurement value that is greater than or equal to the eighteenth preset threshold value.
[0242] In one embodiment, the strongest neighbor cell information includes one of the following: frequency point, frequency point index, neighbor cell identifier, and signal quality value.
[0243] In one embodiment, Figure 13 This is a structural block diagram of another measuring device provided in an embodiment of this application. This embodiment is applied to a second communication node. Exemplarily, the second communication node can be a base station or a network side. Figure 13 As shown, this embodiment includes: a first configuration module 810 and a transmitter 820.
[0244] The first configuration module 810 is configured to configure preset measurement conditions, which are used to enable measurement of the neighboring cells corresponding to the serving cell where the first communication node is located.
[0245] Transmitter 820 is configured to send preset measurement conditions to the first communication node.
[0246] The measuring device provided in this embodiment is configured to achieve... Figure 3 The measurement method in the illustrated embodiment is similar in principle and technical effect to the measurement device provided in this embodiment, and will not be described again here.
[0247] In one embodiment, the preset measurement conditions include one of the following: meeting the trigger conditions for enabling same-frequency or different-frequency measurement; the validity of the measurement value; measurement configuration information; and neighboring cell time-frequency information.
[0248] In this embodiment, the triggering condition for the validity of the measured value refers to the fact that when the measured value of the same frequency, different frequency, frequency point, or neighboring cell meets a preset condition, it is not necessary to measure the same frequency, different frequency, frequency point, or neighboring cell. That is, if the first communication node meets the triggering condition for enabling same-frequency or different-frequency measurement, the first communication node can continue to perform same-frequency and different-frequency measurements, thereby repeatedly triggering measurements of neighboring cells, leading to increased power consumption of the first communication node. Therefore, when the triggering condition for enabling same-frequency or different-frequency measurement is met, the measurement time or number of measurements is limited. That is, if the time or number of measurements of neighboring cells does not reach the preset condition, it is not necessary to enable measurements of neighboring cells, thus reducing the power consumption of the first communication node.
[0249] In one embodiment, when the trigger condition for enabling in-frequency or out-of-frequency measurement is a deterioration in the signal quality of the serving cell where the first communication node is located, the determination method for the deterioration in the signal quality of the serving cell where the first communication node is located includes at least one of the following: within a first preset time period, the signal quality of the serving cell is less than or equal to a first preset threshold; within a second preset time period, the downlink radio link quality of the serving cell is less than or equal to a second preset threshold; the RRC receives a loss-of-synchronization indication reported by the physical layer; within a third preset time period, the number of loss-of-synchronization indications reported by the physical layer to the RRC is greater than or equal to a third preset threshold; the number of consecutive loss-of-synchronization indications reported by the physical layer to the RRC is greater than or equal to... The fourth preset threshold; within the fourth preset time period, the number of PDCCHs not detected is greater than or equal to the fifth preset threshold; the number of consecutively undetected PDCCHs is greater than or equal to the sixth preset threshold; the maximum number of NPDCCH repetitions is greater than or equal to the sixth preset threshold; the maximum number of NPDSCH repetitions is greater than or equal to the seventh preset threshold; the HARQ retransmission rate is greater than or equal to the eighth preset threshold; within the fifth preset time period, the signal quality change value of the serving cell is greater than or equal to the ninth preset threshold; the signal quality of co-frequency neighboring cells is less than or equal to the tenth preset threshold, and inter-frequency measurement is enabled; the duration of enabling co-frequency or inter-frequency measurement is greater than or equal to the eleventh preset threshold.
[0250] In one embodiment, the signal quality of the serving cell or neighboring cell is characterized by at least one of the following parameters: RSRP value; RSRQ value; SINR value.
[0251] In one embodiment, the downlink radio link quality of the serving cell is characterized by at least one of the following parameters: RSRP value; BLER value.
[0252] In one embodiment, the determination criteria for the validity of a measurement value include at least one of the following: the duration of measurement completion reaches the twelfth preset threshold; the duration of searching or measuring reaches the thirteenth preset threshold; the signal quality change value of the serving cell reaches the fourteenth preset threshold; the current number of measurements at the same frequency or different frequency is less than or equal to the fifteenth preset threshold; the validity of the measurement value refers to the fact that when the measurement value of the same frequency, different frequency, frequency point or neighboring cell meets the preset conditions, it is not necessary to measure the same frequency, different frequency, frequency point or neighboring cell.
[0253] In one embodiment, the measurement device applied to the second communication node further includes: a receiver configured to receive uplink data reported by the first communication node carrying a neighboring cell measurement status indication, the neighboring cell measurement status indication including at least one of the following: an indication that same-frequency or different-frequency measurement is satisfied; an indication that same-frequency or different-frequency measurement is about to be started; an indication that same-frequency or different-frequency measurement is requested to be started.
[0254] In one embodiment, the uplink data carrying the neighbor cell measurement status indication includes one of the following: random access preamble; PUCCH message; MAC CE message; RRC message.
[0255] In one embodiment, after receiving uplink data carrying a neighbor cell measurement status indication reported by the first communication node, the method further includes:
[0256] Configure the start time of inter-frequency measurement. The start time can be determined by one of the following methods: the first preset time after successfully sending uplink data is used as the start time; the time when feedback information from the second communication node is successfully received is used as the start time; or the second preset time carried in the uplink data is used as the start time.
[0257] In one embodiment, the measuring device applied to the second communication node further includes: a second configuration module configured to configure inter-frequency measurement time, wherein the inter-frequency measurement time includes: the first communication node not transmitting data to the second communication node, or the first communication node not receiving data from the second communication node.
[0258] In one embodiment, the determination of the inter-frequency measurement time includes one of the following: the MAC does not receive or send a MAC SDU message within a sixth preset time period; the buffer of the RLC or MAC is empty within a seventh preset time period; or the service delay is greater than or equal to a sixteenth preset threshold value.
[0259] In one embodiment, the measurement configuration information includes one of the following: first measurement configuration information carried by an RRC message; second measurement configuration information carried by an RRC message; measurement configuration information activated by a MAC CE message; or measurement configuration information activated by a DCI message.
[0260] In one embodiment, the first measurement configuration information includes: measurement frequency point value, and cell selection parameters for each frequency point; the second measurement configuration information includes: measurement frequency point index.
[0261] In one embodiment, the measurement configuration information activated by the MAC CE message includes one of the following: the MAC CE message carries an activation measurement flag; the MAC CE message carries a frequency index for the activated measurement; the MAC CE message carries a bit string; the activation measurement flag is used to indicate whether same-frequency measurement and / or different-frequency measurement are activated; the bit string is used to indicate whether measurement is enabled for a certain frequency represented by the bit.
[0262] In one embodiment, the measurement configuration information activated by the DCI message includes one of the following: the DCI message carries an activation measurement flag bit; the DCI message carries a frequency index for the activated measurement; the DCI message carries a bit string; the activation measurement flag bit is used to indicate whether the activation is for same-frequency measurement or different-frequency measurement; the bit string is used to indicate whether the measurement is enabled for a certain frequency represented by the bit bit.
[0263] In one embodiment, neighbor cell time-frequency information is configured via system information broadcast or RRC message for neighbor cells of the same or different frequencies.
[0264] In one embodiment, the neighboring cell time-frequency information includes: the time-domain location of the measurement time or the transmission time of the measurement signal; the measurement frequency point, measurement bandwidth, or the frequency-domain location of the measurement signal.
[0265] Figure 14 This is a schematic diagram of the structure of a device provided in an embodiment of this application. For example... Figure 14 As shown, the device provided in this application includes: a processor 910, a memory 920, and a communication module 930. The device may contain one or more processors 910. Figure 14 Taking a processor 910 as an example, the number of memory units 920 in this device can be one or more. Figure 14 Taking a memory 920 as an example, the processor 910, memory 920, and communication module 930 of this device can be connected via a bus or other means. Figure 14 Taking a bus connection as an example, in this embodiment, the device is the first communication node.
[0266] The memory 920, as a computer-readable storage medium, can be configured to store software programs, computer-executable programs, and modules, such as program instructions / modules corresponding to the device in any embodiment of this application (e.g., a receiver and a measurement activation module in a measuring device). The memory 920 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application program required for at least one function; the data storage area may store data created based on the use of the device, etc. Furthermore, the memory 920 may include high-speed random access memory and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other non-volatile solid-state storage device. In some instances, the memory 920 may further include memory remotely located relative to the processor 910, and these remote memories can be connected to the device via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.
[0267] The communication module 930 is configured to perform communication interaction between the first communication node and the second communication node.
[0268] The device provided above can be configured to perform a measurement method applied to a first communication node as provided in any of the above embodiments, and has corresponding functions and effects.
[0269] When the device is the first communication node, the device provided above can be configured to perform another measurement method applied to the first communication node provided in any of the above embodiments, and has the corresponding functions and effects.
[0270] When the device is a second communication node, the device provided above can be configured to execute the measurement method applied to the second communication node provided in any of the above embodiments, and has the corresponding functions and effects.
[0271] This application embodiment also provides a storage medium containing computer-executable instructions, which, when executed by a computer processor, are used to perform a measurement method applied to a first communication node. The method includes: receiving preset measurement conditions configured by a second communication node; and initiating measurement of neighboring cells corresponding to the serving cell where the first communication node is located according to the preset measurement conditions.
[0272] This application embodiment also provides a storage medium containing computer-executable instructions, which, when executed by a computer processor, are used to perform another measurement method applied to a first communication node, the method comprising: sending uplink data carrying the strongest neighbor information of the first communication node to a second communication node.
[0273] This application embodiment also provides a storage medium containing computer-executable instructions, which, when executed by a computer processor, are used to perform another measurement method applied to a second communication node. The method includes: configuring preset measurement conditions, the preset measurement conditions being used to enable measurement of neighboring cells corresponding to the serving cell where the first communication node is located; and sending the preset measurement conditions to the first communication node.
[0274] Those skilled in the art will understand that the term user equipment covers any suitable type of wireless user equipment, such as mobile phones, portable data processing devices, portable web browsers, or vehicle-mounted mobile stations.
[0275] Generally, the various embodiments of this application can be implemented in hardware or dedicated circuitry, software, logic, or any combination thereof. For example, some aspects can be implemented in hardware, while others can be implemented in firmware or software that can be executed by a controller, microprocessor, or other computing device, although this application is not limited thereto.
[0276] Embodiments of this application can be implemented by executing computer program instructions through the data processor of a mobile device, for example, in a processor entity, or through hardware, or through a combination of software and hardware. The computer program instructions can be assembly instructions, Instruction Set Architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, status setting data, or source code or object code written in any combination of one or more programming languages.
[0277] Any block diagram of logical flow in the accompanying drawings of this application may represent program steps, or may represent interconnected logic circuits, modules, and functions, or may represent a combination of program steps and logic circuits, modules, and functions. The computer program may be stored on memory. Memory may be of any type suitable to the local technical environment and may be implemented using any suitable data storage technology, such as, but not limited to, read-only memory (ROM), random access memory (RAM), optical storage devices and systems (Digital Video Disc (DVD) or Compact Disk (CD)), etc. Computer-readable media may include non-transitory storage media. The data processor may be of any type suitable to the local technical environment, such as, but not limited to, general-purpose computers, special-purpose computers, microprocessors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), and processors based on multi-core processor architectures.
Claims
1. A measurement method, characterized in that, Applied to the first communication node, including: Receive the preset measurement conditions configured by the second communication node; The measurement of the neighboring cells corresponding to the serving cell where the first communication node is located is initiated according to the preset measurement conditions; The preset measurement conditions include trigger conditions that enable same-frequency or different-frequency measurement; When the triggering condition for enabling same-frequency or different-frequency measurement is that the signal quality of the serving cell where the first communication node is located deteriorates, the judgment method for the deterioration of the signal quality of the serving cell where the first communication node is located includes at least one of the following: the maximum number of repetitions of the narrowband physical downlink control channel NPDCCH is greater than or equal to the seventh preset threshold; the maximum number of repetitions of the narrowband physical downlink shared channel NPDSCH is greater than or equal to the eighth preset threshold.
2. The method according to claim 1, characterized in that, The preset measurement conditions include one of the following: the validity of the measurement value; measurement configuration information; neighboring cell time and frequency information; the triggering condition for the validity of the measurement value refers to the fact that when the measurement value of the same frequency, different frequency, frequency point or neighboring cell meets the preset conditions, it is not necessary to measure the same frequency, different frequency, frequency point or neighboring cell.
3. The method according to claim 2, characterized in that, When the trigger condition for enabling same-frequency or different-frequency measurement is that the signal quality of the serving cell where the first communication node is located deteriorates, the method for determining the deterioration of the signal quality of the serving cell where the first communication node is located includes at least one of the following: within a first preset time period, the signal quality of the serving cell is less than a first preset threshold; within a second preset time period, the downlink radio link quality of the serving cell is less than or equal to a second preset threshold. The Radio Resource Control (RRC) receives a loss-of-synchronization indication reported by the Physical Layer; Within the third preset time period, the number of out-of-step indications reported by the physical layer to the RRC is greater than or equal to the third preset threshold value; The number of out-of-step indications continuously received by the RRC from the physical layer is greater than or equal to the fourth preset threshold value; Within the fourth preset time period, no physical downlink control channel (PDCCH) number was detected to be greater than or equal to the fifth preset threshold value; The number of consecutively undetected PDCCHs is greater than or equal to the sixth preset threshold. The Hybrid Automatic Repeatable Transmission (HARQ) retransmission rate is greater than or equal to the ninth preset threshold. Within the fifth preset time period, if the signal quality change value of the serving cell is greater than the tenth preset threshold value; if the signal quality of the co-frequency neighboring cell is less than or equal to the eleventh preset threshold value, inter-frequency measurement is initiated; if the duration of initiating co-frequency or inter-frequency measurement is greater than or equal to the twelfth preset threshold value.
4. The method according to claim 3, characterized in that, The signal quality of the serving cell or neighboring cell is characterized by at least one of the following parameters: Reference Signal Received Power (RSRP); Reference Signal Received Quality (RSRQ); Signal-to-Interference-plus-Noise Ratio (SINR).
5. The method according to claim 3, characterized in that, The downlink radio link quality of the serving cell is characterized by at least one of the following parameters: RSRP value; BLER value.
6. The method according to claim 2, characterized in that, The validity criteria for the measured value include at least one of the following: the duration of the measurement ends reaches the thirteenth preset threshold; the duration of the search or measurement begins reaches the fourteenth preset threshold; the signal quality change value of the serving cell reaches the fifteenth preset threshold; and the current number of measurements at the same or different frequencies is less than or equal to the sixteenth preset threshold.
7. The method according to claim 2, characterized in that, The method further includes: The uplink data carrying the neighbor cell measurement status indication is reported to the second communication node. The neighbor cell measurement status indication includes at least one of the following: an indication that the same-frequency or different-frequency measurement is satisfied; an indication that the same-frequency or different-frequency measurement is about to be started; or an indication that the same-frequency or different-frequency measurement is requested to be started.
8. The method according to claim 7, characterized in that, The uplink data carrying the neighbor cell measurement status indication includes one of the following: a random access preamble; a physical uplink control channel (PUCCH) message; a media access control-control element (MAC CE) message; or an RRC message.
9. The method according to claim 7, characterized in that, After reporting the uplink data carrying the neighbor cell measurement status indication to the second communication node, the method further includes: The start time of inter-frequency measurement is determined by one of the following methods: a first preset time after successfully sending uplink data is used as the start time; the time when feedback information from the second communication node is successfully received is used as the start time; or a second preset time carried in the uplink data is used as the start time.
10. The method according to claim 1, characterized in that, The method further includes: determining the inter-frequency measurement time, wherein the inter-frequency measurement time includes: the first communication node not transmitting data to the second communication node, or the first communication node not receiving data from the second communication node.
11. The method according to claim 10, characterized in that, The determination of the inter-frequency measurement time includes one of the following: within a sixth preset time period, the MAC does not receive or send a MAC Service Data Unit (SDU) message; within a seventh preset time period, the buffer of the Radio Link Control (RLC) or MAC is empty; or the service delay is greater than or equal to a seventeenth preset threshold.
12. The method according to claim 2, characterized in that, The measurement configuration information includes one of the following: first measurement configuration information carried by an RRC message; second measurement configuration information carried by an RRC message; measurement configuration information activated by a MAC CE message; or measurement configuration information activated by a downlink control information (DCI) message.
13. The method according to claim 12, characterized in that, The first measurement configuration information includes: measurement frequency point value, and cell selection parameters for each frequency point; the second measurement configuration information includes: measurement frequency point index.
14. The method according to claim 12, characterized in that, The measurement configuration information activated by the MAC CE message includes one of the following: the MAC CE message carries an activation measurement flag; the MAC CE message carries a frequency index for the activated measurement; the MAC CE message carries a bit string; the activation measurement flag is used to indicate whether same-frequency measurement and / or different-frequency measurement are activated; the bit string is used to indicate whether measurement is enabled for a certain frequency represented by the bit.
15. The method according to claim 12, characterized in that, The measurement configuration information activated by the DCI message includes one of the following: the DCI message carries an activation measurement flag; the DCI message carries a frequency index for the activated measurement; the DCI message carries a bit string; the activation measurement flag is used to indicate whether the activation is for same-frequency measurement and / or different-frequency measurement; the bit string is used to indicate whether measurement is enabled at a certain frequency represented by the bit.
16. The method according to claim 2, characterized in that, The neighbor cell time-frequency information is configured through system information broadcast or RRC messages to provide time-frequency information for neighbor cells with the same or different frequencies.
17. The method according to claim 2 or 16, characterized in that, The neighboring cell time-frequency information includes: the time-domain location of the measurement time or the transmission time of the measurement signal; the measurement frequency point, measurement bandwidth, or the frequency-domain location of the measurement signal.
18. A measurement method, characterized in that, Applied to the second communication node, including: Configure preset measurement conditions, which are used to enable measurement of neighboring cells corresponding to the serving cell where the first communication node is located; Send the preset measurement conditions to the first communication node; The preset measurement conditions include trigger conditions that enable same-frequency or different-frequency measurement; When the triggering condition for enabling same-frequency or different-frequency measurement is that the signal quality of the serving cell where the first communication node is located deteriorates, the judgment method for the deterioration of the signal quality of the serving cell where the first communication node is located includes at least one of the following: the maximum number of repetitions of the narrowband physical downlink control channel NPDCCH is greater than or equal to the seventh preset threshold; the maximum number of repetitions of the narrowband physical downlink shared channel NPDSCH is greater than or equal to the eighth preset threshold.
19. A measuring device, characterized in that, Applied to the first communication node, including: The receiver is configured to receive preset measurement conditions configured by the second communication node; Enable the measurement module and configure it to perform measurements on the neighboring cells corresponding to the serving cell where the first communication node is located, based on the preset measurement conditions. The preset measurement conditions include trigger conditions that enable same-frequency or different-frequency measurement; When the triggering condition for enabling same-frequency or different-frequency measurement is that the signal quality of the serving cell where the first communication node is located deteriorates, the judgment method for the deterioration of the signal quality of the serving cell where the first communication node is located includes at least one of the following: the maximum number of repetitions of the narrowband physical downlink control channel NPDCCH is greater than or equal to the seventh preset threshold; the maximum number of repetitions of the narrowband physical downlink shared channel NPDSCH is greater than or equal to the eighth preset threshold.
20. A measuring device, characterized in that, Applied to the second communication node, including: The first configuration module is configured to configure preset measurement conditions, which are used to enable measurement of the neighboring cells corresponding to the serving cell where the first communication node is located. The transmitter is configured to send the preset measurement conditions to the first communication node; The preset measurement conditions include trigger conditions that enable same-frequency or different-frequency measurement; When the triggering condition for enabling same-frequency or different-frequency measurement is that the signal quality of the serving cell where the first communication node is located deteriorates, the judgment method for the deterioration of the signal quality of the serving cell where the first communication node is located includes at least one of the following: the maximum number of repetitions of the narrowband physical downlink control channel NPDCCH is greater than or equal to the seventh preset threshold; the maximum number of repetitions of the narrowband physical downlink shared channel NPDSCH is greater than or equal to the eighth preset threshold.
21. A communication device, characterized in that, include: A communication module, a memory, and one or more processors; The communication module is configured to perform communication interaction between the first communication node and the second communication node; The memory is configured to store one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the method as described in any one of claims 1-18.
22. A storage medium, characterized in that, The storage medium stores a computer program that, when executed by a processor, implements the method described in any one of claims 1-18.