A method, apparatus, terminal and network device for accessing a network

Abstract

The application provides a method, device, terminal and network equipment for accessing a network. The method on the terminal side comprises: in an idle state, measuring downlink frequency bands of a candidate normal uplink (NUL) carrier and a supplementary uplink (SUL) carrier to obtain measurement results; and accessing the network according to the measurement results. The scheme of the application can enable a user to select a suitable uplink carrier and access the network smoothly.

Description

Technical Field

[0001] This invention relates to the field of communication technology, and in particular to a method, apparatus, terminal and network equipment for accessing a network. Background Technology

[0002] In current co-located scenarios, the base station configures PRACHocccasion (Physical Random Access Channel Opportunity) and signal quality thresholds for accessing the NUL (Normal Uplink) via SIB1 (System Information Block) messages on both the NUL (Normal Uplink) and SUL (Supplementary Uplink). The terminal measures the downlink signal quality corresponding to the NUL in the idle state. If the quality exceeds a certain threshold, it selects the NUL and sends a preamble; otherwise, it sends a preamble request for access on the SUL.

[0003] When deploying SUL (Suspended UL) functionality in the current network, multiple adjacent 2.6GHz cells typically share a 700MHz SUL carrier. According to current protocols, when the 2.6GHz signal is above a certain threshold, uplink uses NUL (Non-UL), i.e., 2.6GHz. When the 2.6GHz signal is below a certain threshold, users will directly access via SUL (700MHz). However, inevitably, there will be locations where the 2.6GHz signal is below a certain threshold, and the 700MHz signal quality may also be poor or even worse, potentially causing users to fail to access 700MHz. Alternatively, if the threshold is set improperly, the 700MHz signal quality may be superior to 2.6GHz, but users may still prioritize 700MHz, resulting in poor uplink performance and increasing the load on the 700MHz band to some extent. Summary of the Invention

[0004] The technical problem this invention aims to solve is how to provide a method, apparatus, terminal, and network device for accessing a network, enabling users to successfully access the network by selecting a suitable carrier.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows:

[0006] A method for accessing a network, applied to a terminal, includes:

[0007] In the idle state, the downlink frequency bands of the candidate normal uplink NUL carrier and the auxiliary uplink SUL carrier are measured to obtain the measurement results;

[0008] Based on the measurement results, access the network.

[0009] Optionally, measurements are performed on the downlink frequency bands of the candidate normal uplink NUL carrier and the auxiliary uplink SUL carrier to obtain measurement results, including:

[0010] The downlink frequency band of the candidate normal uplink NUL carrier is measured to obtain the first measurement result;

[0011] The downlink frequency band of the candidate auxiliary uplink SUL carrier is measured to obtain a second measurement result.

[0012] Optionally, based on the measurement results, accessing the network includes:

[0013] If the first measurement result indicates that the signal strength of the NUL carrier is greater than the first threshold, then the NUL carrier is used to access the network;

[0014] If the first measurement result indicates that the signal strength of the NUL carrier is less than or equal to the first threshold, then based on the difference between the first measurement result and the second measurement result, the NUL carrier is selected to access the network or the SUL carrier is selected to access the network.

[0015] Optionally, based on the measurement results, accessing the network includes:

[0016] Based on the difference between the first measurement result and the second measurement result, either the NUL carrier access network or the SUL carrier access network is selected.

[0017] Optionally, based on the difference between the first measurement result and the second measurement result, selecting either the NUL carrier access network or the SUL carrier access network includes:

[0018] If the difference between the first measurement result and the second measurement result is greater than the second threshold, then the NUL carrier is selected to access the network; otherwise, the SUL carrier is selected to access the network.

[0019] Optionally, the second threshold is determined through the following process:

[0020] Obtain the current uplink signal quality SINR;

[0021] The current throughput is determined based on the maximum uplink signal quality SINR_max, the maximum throughput_max, and the current uplink signal quality SINR; wherein, the uplink signal quality SINR is positively correlated with the current throughput_max.

[0022] The second threshold is determined based on the current throughput and the carrier load.

[0023] Optionally, throughput' = throughput_max * (1 - f(SINR_max - SINR)); or

[0024] throughput' = y(SINR);

[0025] Wherein, the y function refers to the estimated uplink throughput under different uplink channel conditions;

[0026] The f function is used to obtain the ratio between the rate of decrease and the peak rate, given the known SINR decrease.

[0027] Optionally, the second threshold is determined based on the current throughput and the carrier load, including:

[0028] Throughput(NUL)-Throughput(SUL)>X, where Throughput(NUL) is the first measurement value, Throughput(SUL) is the second measurement value, and X is the second threshold.

[0029] For SUL or NUL:

[0030] Throughput=throughput'*(1-load)

[0031] =throughput_max*(1-f(SIN_max-SINR))*(1-load)

[0032] =throughput_max*(1-f(SIN_max-A(RSRP, frequency)))*(1-load)

[0033] Where load is the carrier load, RSRP is the measured value, load is the load factor, and f function, y function, SINR_max and A function are all empirical values ​​or preset values; f function, y function and A function are all strongly correlated with frequency.

[0034] Optionally, the second threshold is determined based on the current throughput and the carrier load, including:

[0035] Throughput(NUL)-Throughput(SUL)>X, where Throughput(NUL) is the first measurement value, Throughput(SUL) is the second measurement value, and X is the second threshold.

[0036] For SUL or NUL:

[0037] Throughput=throughput'*(1-load)

[0038] =y(A(RSRP,frequency))*(1-load)

[0039] Among them, RSRP is obtained by measurement, load is the load factor, and the y function and A function are empirical values ​​that are strongly correlated with the frequency.

[0040] Embodiments of the present invention also provide a method for accessing a network, applied to a network device, the method comprising:

[0041] The receiving terminal sends a measurement result obtained by measuring the downlink frequency bands of the candidate normal uplink NUL carrier and the auxiliary uplink SUL carrier in the idle state; and receives an access request to access the network sent by the receiving terminal based on the measurement result.

[0042] Embodiments of the present invention also provide a network access device, applied to a terminal, the device comprising:

[0043] The processing module is used to measure the downlink frequency bands of candidate normal uplink NUL carriers and auxiliary uplink SUL carriers in the idle state and obtain the measurement results.

[0044] The transceiver module is used to access the network based on the measurement results.

[0045] Embodiments of the present invention also provide a terminal, comprising:

[0046] The processor is used to measure the downlink frequency bands of candidate normal uplink NUL carriers and auxiliary uplink SUL carriers in idle state, and obtain the measurement results.

[0047] A transceiver is used to access the network based on the measurement results.

[0048] Embodiments of the present invention also provide a network access device, applied to a network equipment, the device comprising:

[0049] The transceiver module is used to receive measurement results sent by the terminal in the idle state, obtained by the terminal measuring the downlink frequency bands of the candidate normal uplink NUL carrier and the auxiliary uplink SUL carrier; and to receive access requests to the network sent by the terminal based on the measurement results.

[0050] Embodiments of the present invention also provide a network device, comprising:

[0051] The transceiver is used to receive measurement results sent by the terminal in an idle state, obtained by the terminal measuring the downlink frequency bands of the candidate normal uplink NUL carrier and the auxiliary uplink SUL carrier; and to receive access requests to the network sent by the terminal based on the measurement results.

[0052] Embodiments of the present invention also provide a communication device, including: a processor and a memory storing a computer program, wherein the computer program, when executed by the processor, performs the method described above.

[0053] Embodiments of the present invention also provide a computer-readable storage medium storing instructions that, when executed on a computer, cause the computer to perform the method described above.

[0054] The above-described solution of the present invention has at least the following beneficial effects:

[0055] In the solution of this invention, the terminal, in an idle state, measures the downlink frequency bands of the candidate normal uplink NUL carrier and the auxiliary uplink SUL carrier to obtain the measurement results; based on the measurement results, it accesses the network. This enables the user to select a suitable uplink carrier for smooth network access, reducing carrier load while ensuring high-quality uplink performance for the user. Attached Figure Description

[0056] Figure 1 This is a flowchart illustrating the network access method according to an embodiment of the present invention;

[0057] Figure 2 This is a flowchart illustrating the specific implementation of the network access method according to an embodiment of the present invention;

[0058] Figure 3 This is a schematic diagram of the module block of the access network device according to an embodiment of the present invention. Detailed Implementation

[0059] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0060] like Figure 1 As shown, an embodiment of the present invention provides a method for accessing a network, applied to a terminal, including:

[0061] Step 11: In the idle state, measure the downlink frequency bands of the candidate normal uplink NUL carrier and the auxiliary uplink SUL carrier to obtain the measurement results;

[0062] Step 12: Connect to the network based on the measurement results.

[0063] In this embodiment, the terminal, in an idle state, measures the downlink frequency bands of the candidate normal uplink NUL carrier and the auxiliary uplink SUL carrier to obtain the measurement results; based on the measurement results, it accesses the network. This ensures that when a user's service requests or paging triggers access, regardless of the carrier signal quality, a suitable uplink carrier can be selected to smoothly access the network and provide services, while simultaneously guaranteeing high-quality uplink performance for user data and low carrier load.

[0064] In an optional embodiment of the present invention, step 11 may include:

[0065] Step 111: Measure the downlink frequency band of the candidate normal uplink NUL carrier to obtain the first measurement result;

[0066] Step 112: Measure the downlink frequency band of the candidate auxiliary uplink SUL carrier to obtain a second measurement result.

[0067] In this embodiment, network devices (such as base stations) can configure the terminal to perform measurements in idle state by adding the MeasIdleConfigDedicated_SUL field to the SIB11 or RRC release message, and obtain the first measurement result and the second measurement result, as detailed below:

[0068]

[0069]

[0070] In the above fields, the contents of the measIdleCarrierListNR_SUL, measIdleDuration_SUL, q-RxLev_SUL, and validityAreaList_SUL fields can reuse the contents of the corresponding protocol-defined measIdleCarrierListNR-r16, measIdleDuration-r16, Q-RxLevMin, and ValidityAreaList-r16 on the right, respectively. The measIdleCarrierListNR_SUL field represents the downlink frequency of the NUL and SUL carriers to be measured, as well as the NUL carrier frequency, i.e., the first and second measurement results. measIdleDuration_SUL is the measurement period; the terminal performs periodic measurements of the downlink frequency cells of the NUL and SUL carriers according to the base station's idle-state measurement configuration.

[0071] In an optional embodiment of the present invention, step 12 may include:

[0072] Step 121: If the first measurement result indicates that the signal strength of the NUL carrier is greater than the first threshold, then the NUL carrier is used to access the network;

[0073] Step 122: If the first measurement result indicates that the signal strength of the NUL carrier is less than or equal to the first threshold, then based on the difference between the first measurement result and the second measurement result, select the NUL carrier to access the network or select the SUL carrier to access the network.

[0074] The above.

[0075] In this embodiment, if the NUL signal strength is higher than the first threshold, NUL access is selected; otherwise, SUL access is selected. Idle state measurements are introduced, requiring the formulation of corresponding access criteria while considering current protocols. Given that NUL generally has a higher frequency and greater bandwidth than SUL and belongs to the capacity layer, load balancing is considered. NUL generally has higher priority; therefore, based on the set first threshold q-RxLevMinSUL, if the 2.6GHz signal strength is higher than q-RxLevMinSUL, 2.6GHz uplink access is directly selected. Otherwise, the selection is based on the downlink signal measurement results of 2.6GHz and 700MHz. If 700MHz is better, SUL access is selected; otherwise, NUL access is selected.

[0076] The system involves two layers of judgment: First, according to the protocol, if the 2.6GHz signal strength is higher than the q-RxLevMinSUL threshold, it directly accesses the uplink at 2.6GHz. Otherwise, it enters a second judgment process. The terminal uses the idle state measurement results of 2.6GHz and 700MHz and the load conditions of the two carriers. If the NUL signal quality exceeds a certain value X compared to the SUL signal quality, it selects NUL access; otherwise, it accesses SUL.

[0077] In an optional embodiment of the present invention, step 12 may further include:

[0078] Step 123: Select the NUL carrier access network or the SUL carrier access network based on the difference between the first measurement result and the second measurement result.

[0079] In an optional embodiment of the present invention, step 122 or 123, selecting the NUL carrier access network or the SUL carrier access network based on the difference between the first measurement result and the second measurement result, may include:

[0080] If the difference between the first measurement result and the second measurement result is greater than the second threshold, then the NUL carrier is selected to access the network; otherwise, the SUL carrier is selected to access the network.

[0081] In this embodiment, based directly on idle state measurements and the load conditions of the two carriers, if the NUL signal quality exceeds a certain value X compared to the SUL signal quality, then NUL access is selected; otherwise, SUL access is selected. In this case, the base station can omit the configuration of q-RxLevMinSUL. The setting of X is configurable, and the base station can dynamically adjust it according to the load factor. For example, if the 2.6G load is much lower than 700M, then X is set to a higher value; if the 700M load is low, then X can be set to a lower value or 0.

[0082] In this embodiment, by transmitting idle state measurements from the base station, the terminal selects a suitable uplink carrier for access and services based on the measurement results, thereby improving uplink performance and avoiding performance degradation and load imbalance caused by unreasonable q-RxLevMinSUL threshold settings. (If the threshold value is too high, it will be difficult to camp on 2.6GHz, causing excessive pressure on the 700MHz network; if the threshold value is too low, it may be unable to find the optimal uplink, resulting in affected uplink performance.) This scheme can also adjust the access threshold based on the load conditions of different carriers. For example, if the 2.6GHz signal is worse than 700MHz but still considered good, and the load on 700MHz is relatively high, 2.6GHz should be prioritized instead of directly selecting the uplink based on signal quality.

[0083] Here, considering that SUL is an FDD band or a non-full uplink TDD band, and that there are differences in coverage and bandwidth between NUL and SUL, the setting of the second threshold needs to be analyzed in a comprehensive manner to give a reasonable value.

[0084] In an optional embodiment of the present invention, the second threshold is determined by the following process:

[0085] Step 21: Obtain the current uplink signal quality SINR. Specifically, based on empirical values ​​such as drive test results, the signal quality difference between the downlink and uplink channels is given. Then, SINR = A(RSRP, frequency), where RSRP is the downlink signal quality and SINR is the uplink signal quality.

[0086] Step 22: Determine the current throughput throughput' based on the maximum uplink signal quality SINR_max, the maximum throughput throughput_max, and the current uplink signal quality SINR; wherein, the uplink signal quality SINR is positively correlated with the current throughput throughput'.

[0087] Specifically, by utilizing the relationship between SINR and data rate, the relationship between data rate and peak data rate under different SINR values ​​can be calculated, i.e., throughput_max ~ throughput' = SINR_max ~ SINR. This can be understood as a decrease in SINR of 'a' leading to a decrease in data rate of 'a' = f(a). Therefore, throughput' = throughput_max * (1 - f(SINR_max - SINR)) or = y(SINR). The y function can be obtained through machine learning from a large number of drive test results to obtain the uplink throughput corresponding to different SINR values. The calculation of throughput_max can follow the protocol definition, and the y function also includes carrier bandwidth and uplink / downlink time slot ratio information.

[0088] Step 23: Determine the second threshold based on the current throughput' and the carrier load. Simultaneously, for better performance, consider the load conditions of different carriers: Throughput = throughput' * (1 - load), where load is the carrier load coefficient. If the load is high, load is close to 1; if the load is low, load is close to 0. This value needs to be updated periodically or by looking up a table based on network load patterns.

[0089] This threshold is set so that when NUL-SUL>X, the throughput on NUL is higher than the throughput on SUL, i.e., Throughput(NUL)>Throughput(SUL).

[0090] In an optional embodiment of the present invention, step 23 may include:

[0091] Throughput(NUL)-Throughput(SUL)>X, where Throughput(NUL) is the first measurement value, Throughput(SUL) is the second measurement value, and X is the second threshold.

[0092] For SUL or NUL:

[0093] Throughput=throughput'*(1-load)

[0094] =throughput_max*(1-f(SIN_max-SINR))*(1-load)

[0095] =throughput_max*(1-f(SIN_max-A(RSRP, frequency)))*(1-load)

[0096] Where load is the carrier load, RSRP is the measured value, load is the load factor, and f function, y function, SINR_max and A function are all empirical values ​​or preset values; f function, y function and A function are all strongly correlated with frequency.

[0097] In this embodiment, the final rate is obtained by multiplying the measured downlink signal quality RSRP, the estimated uplink signal quality SINR, the maximum signal-to-noise ratio SINR_max, and the ratio between the rate and the peak value, together with the peak value.

[0098] In an optional embodiment of the present invention, step 23 may further include:

[0099] Throughput(NUL)-Throughput(SUL)>X, where Throughput(NUL) is the first measurement value, Throughput(SUL) is the second measurement value, and X is the second threshold.

[0100] For SUL or NUL:

[0101] Throughput=throughput'*(1-load)

[0102] =y(A(RSRP,frequency))*(1-load)

[0103] Here, RSRP is obtained through measurement, load is the load factor, and the y-function and A-function are empirical values ​​that are strongly correlated with frequency. The uplink throughput (y-function) and the difference in uplink and downlink channel estimation at different frequencies (A-function) are estimated for different SINR values.

[0104] In this embodiment, both methods require combining test results such as big data and machine learning to estimate results that are closer to the true value.

[0105] The f-function, y-function, and A-function are all strongly correlated with frequency. For example, the uplink and downlink signal quality difference A(2.6G) is relatively small in the 2.6G spectrum, while the uplink and downlink signal quality difference A(700M) is relatively large in the 700M spectrum. Therefore, the values ​​of A for different frequencies need to be determined based on extensive field testing or link budget calculations, as shown in the table below:

[0106] frequency 700MHz 2.6GHz … Uplink and downlink signal quality differences A(RSRP, 700M) A(RSRP, 2.6G)

[0107] Taking 700MHz as an example, function A covers the uplink signal quality of a 700MHz frequency cell at all RSRP locations, with RSRP increments of 0.1 or 0.5. This table can be stored at the base station or network management system, or the formula can be derived by abstracting patterns from a large amount of drive test results and then calculating according to the formula. This allows for a more accurate uplink channel estimate.

[0108] The y function estimates the corresponding uplink throughput under different uplink channel conditions. This function also requires a large amount of drive test data or a large number of live network terminals. The more data referenced, the more accurate the estimation.

[0109] The f function uses the best point as a reference, where the peak rate can be achieved. If the uplink SINR decreases by mdB, the rate decreases by n% compared to the peak rate. The f function is based on the known decrease in SINR, thus obtaining the ratio between the rate and the peak rate.

[0110] In this embodiment, since the broadcast is the channel quality threshold, the value of q-RxLev_SUL needs to be deduced by reverse reasoning: Throughput(SUL)-Throughput(NUL)=0=>;SINR(SUL)-SINR(NUL)=0=>;RSRP(SUL)-RSRP(NUL)=0=>.

[0111] like Figure 2 The following is a detailed implementation process of the above method:

[0112] Step 1: Configure idle state measurement at the base station. The measurement objects include the downlink frequency bands corresponding to NUL and SUL.

[0113] Step 2: Based on the idle state measurement results and the load status of the two carriers, determine whether to configure the first threshold q-RxLevMinSUL;

[0114] Step 3: With the first threshold q-RxLevMinSUL configured, determine whether the NUL signal quality is higher than the first threshold. If it is higher than the first threshold, access the network through the NUL carrier. Otherwise, perform a second judgment and compare the difference between the NUL carrier and SUL carrier signal quality with the second threshold X. If the difference between NUL and SUL is greater than the second threshold X, access the NUL; otherwise, access the SUL.

[0115] Step 4: If the NUL signal quality is not higher than the first threshold, then directly compare the difference between the NUL carrier and SUL carrier signal quality with the second threshold. If the difference between NUL and SUL is greater than the second threshold, then connect to NUL; otherwise, connect to SUL.

[0116] The above embodiments of the present invention improve uplink performance by sending idle state measurements from the base station and allowing the terminal to select a suitable uplink carrier for access and services based on the measurement results. At the same time, they avoid downlink performance issues and load imbalances caused by unreasonable q-RxLevMinSUL threshold settings.

[0117] Embodiments of the present invention also provide a method for accessing a network, applied to a network device, the method comprising:

[0118] The receiving terminal transmits measurements of the downlink frequency bands of the candidate normal uplink NUL carrier and the auxiliary uplink SUL carrier in an idle state, and obtains the measurement results; and receives the access request to the access network sent by the receiving terminal based on the measurement results.

[0119] It should be noted that this method is a network device-side method corresponding to the terminal-side method described above. All implementation methods in the above method embodiments are applicable to this embodiment and can achieve the same technical effect.

[0120] like Figure 3 As shown, embodiments of the present invention also provide a network access device 30, applied to a terminal, the device 30 comprising:

[0121] Processing module 31 is used to measure the downlink frequency band of candidate normal uplink NUL carrier and auxiliary uplink SUL carrier in idle state and obtain measurement results;

[0122] The transceiver module 32 is used to access the network based on the measurement results.

[0123] Optionally, measurements are performed on the downlink frequency bands of the candidate normal uplink NUL carrier and the auxiliary uplink SUL carrier to obtain measurement results, including:

[0124] The downlink frequency band of the candidate normal uplink NUL carrier is measured to obtain the first measurement result;

[0125] The downlink frequency band of the candidate auxiliary uplink SUL carrier is measured to obtain a second measurement result.

[0126] Optionally, based on the measurement results, accessing the network includes:

[0127] If the first measurement result indicates that the signal strength of the NUL carrier is greater than the first threshold, then the NUL carrier is used to access the network;

[0128] If the first measurement result indicates that the signal strength of the NUL carrier is less than or equal to the first threshold, then based on the difference between the first measurement result and the second measurement result, the NUL carrier is selected to access the network or the SUL carrier is selected to access the network.

[0129] Optionally, based on the measurement results, accessing the network includes:

[0130] Based on the difference between the first measurement result and the second measurement result, either the NUL carrier access network or the SUL carrier access network is selected.

[0131] Optionally, based on the difference between the first measurement result and the second measurement result, selecting either the NUL carrier access network or the SUL carrier access network includes:

[0132] If the difference between the first measurement result and the second measurement result is greater than the second threshold, then the NUL carrier is selected to access the network; otherwise, the SUL carrier is selected to access the network.

[0133] Optionally, the second threshold is determined through the following process:

[0134] Obtain the current uplink signal quality SINR;

[0135] The current throughput is determined based on the maximum uplink signal quality SINR_max, the maximum throughput_max, and the current uplink signal quality SINR; wherein, the uplink signal quality SINR is positively correlated with the current throughput_max.

[0136] The second threshold is determined based on the current throughput and the carrier load.

[0137] Optional,

[0138] throughput' = throughput_max * (1 - f(SINR_max - SINR)); or

[0139] throughput' = y(SINR);

[0140] Wherein, the y function refers to the estimated uplink throughput under different uplink channel conditions;

[0141] The f function is used to obtain the ratio between the rate of decrease and the peak rate, given the known SINR decrease.

[0142] Optionally, the second threshold is determined based on the current throughput and the carrier load, including:

[0143] Throughput(NUL)-Throughput(SUL)>X, where Throughput(NUL) is the first measurement value, Throughput(SUL) is the second measurement value, and X is the second threshold.

[0144] For SUL or NUL:

[0145] Throughput=throughput'*(1-load)

[0146] =throughput_max*(1-f(SIN_max-SINR))*(1-load)

[0147] =throughput_max*(1-f(SIN_max-A(RSRP, frequency)))*(1-load)

[0148] Where load is the carrier load, RSRP is the measured value, load is the load factor, and f function, y function, SINR_max and A function are all empirical values ​​or preset values; f function, y function and A function are all strongly correlated with frequency.

[0149] Optionally, the second threshold is determined based on the current throughput and the carrier load, including:

[0150] Throughput(NUL)-Throughput(SUL)>X, where Throughput(NUL) is the first measurement value, Throughput(SUL) is the second measurement value, and X is the second threshold.

[0151] For SUL or NUL:

[0152] Throughput=throughput'*(1-load)

[0153] =y(A(RSRP,frequency))*(1-load)

[0154] Among them, RSRP is obtained by measurement, load is the load factor, and the y function and A function are empirical values ​​that are strongly correlated with the frequency.

[0155] It should be noted that this device is the same as the method described above. All implementations in the above method embodiments are applicable to the embodiments of this device and can achieve the same technical effect.

[0156] Embodiments of the present invention also provide a terminal, comprising:

[0157] The processor is used to measure the downlink frequency bands of candidate normal uplink NUL carriers and auxiliary uplink SUL carriers in idle state, and obtain the measurement results.

[0158] A transceiver is used to access the network based on the measurement results.

[0159] Optionally, measurements are performed on the downlink frequency bands of the candidate normal uplink NUL carrier and the auxiliary uplink SUL carrier to obtain measurement results, including:

[0160] The downlink frequency band of the candidate normal uplink NUL carrier is measured to obtain the first measurement result;

[0161] The downlink frequency band of the candidate auxiliary uplink SUL carrier is measured to obtain a second measurement result.

[0162] Optionally, based on the measurement results, accessing the network includes:

[0163] If the first measurement result indicates that the signal strength of the NUL carrier is greater than the first threshold, then the NUL carrier is used to access the network;

[0164] If the first measurement result indicates that the signal strength of the NUL carrier is less than or equal to the first threshold, then based on the difference between the first measurement result and the second measurement result, the NUL carrier is selected to access the network or the SUL carrier is selected to access the network.

[0165] Optionally, based on the measurement results, accessing the network includes:

[0166] Based on the difference between the first measurement result and the second measurement result, either the NUL carrier access network or the SUL carrier access network is selected.

[0167] Optionally, based on the difference between the first measurement result and the second measurement result, selecting either the NUL carrier access network or the SUL carrier access network includes:

[0168] If the difference between the first measurement result and the second measurement result is greater than the second threshold, then the NUL carrier is selected to access the network; otherwise, the SUL carrier is selected to access the network.

[0169] Optionally, the second threshold is determined through the following process:

[0170] Obtain the current uplink signal quality SINR;

[0171] The current throughput is determined based on the maximum uplink signal quality SINR_max, the maximum throughput_max, and the current uplink signal quality SINR; wherein, the uplink signal quality SINR is positively correlated with the current throughput_max.

[0172] The second threshold is determined based on the current throughput and the carrier load.

[0173] Optional,

[0174] throughput' = throughput_max * (1 - f(SINR_max - SINR)); or

[0175] throughput' = y(SINR);

[0176] Wherein, the y function refers to the estimated uplink throughput under different uplink channel conditions;

[0177] The f function is used to obtain the ratio between the rate of decrease and the peak rate, given the known SINR decrease.

[0178] Optionally, the second threshold is determined based on the current throughput and the carrier load, including:

[0179] Throughput(NUL)-Throughput(SUL)>X, where Throughput(NUL) is the first measurement value, Throughput(SUL) is the second measurement value, and X is the second threshold.

[0180] For SUL or NUL:

[0181] Throughput=throughput'*(1-load)

[0182] =throughput_max*(1-f(SIN_max-SINR))*(1-load)

[0183] =throughput_max*(1-f(SIN_max-A(RSRP, frequency)))*(1-load)

[0184] Where load is the carrier load, RSRP is the measured value, load is the load factor, and f function, y function, SINR_max and A function are all empirical values ​​or preset values; f function, y function and A function are all strongly correlated with frequency.

[0185] Optionally, the second threshold is determined based on the current throughput and the carrier load, including:

[0186] Throughput(NUL)-Throughput(SUL)>X, where Throughput(NUL) is the first measurement value, Throughput(SUL) is the second measurement value, and X is the second threshold.

[0187] For SUL or NUL:

[0188] Throughput=throughput'*(1-load)

[0189] =y(A(RSRP,frequency))*(1-load)

[0190] Among them, RSRP is obtained by measurement, load is the load factor, and the y function and A function are empirical values ​​that are strongly correlated with the frequency.

[0191] It should be noted that this terminal is the terminal corresponding to the method on the terminal side described above. All implementation methods in the above method embodiments are applicable to the embodiments of this terminal and can achieve the same technical effect.

[0192] Embodiments of the present invention also provide a network access device, applied to a network equipment, the device comprising:

[0193] The transceiver module is used to receive measurement results sent by the terminal in the idle state, obtained by the terminal measuring the downlink frequency bands of the candidate normal uplink NUL carrier and the auxiliary uplink SUL carrier; and to receive access requests to the network sent by the terminal based on the measurement results.

[0194] It should be noted that this device is the same as the method on the network device side described above. All implementations in the above method embodiments are applicable to the embodiments of this device and can achieve the same technical effect.

[0195] Embodiments of the present invention also provide a network device, comprising:

[0196] The transceiver is used to receive measurement results sent by the terminal in an idle state, obtained by the terminal measuring the downlink frequency bands of the candidate normal uplink NUL carrier and the auxiliary uplink SUL carrier; and to receive access requests to the network sent by the terminal based on the measurement results.

[0197] It should be noted that the network device is the network device corresponding to the above method, and all implementation methods in the above method embodiments are applicable to the embodiments of this network device and can achieve the same technical effect.

[0198] Embodiments of the present invention also provide a communication device, including: a processor and a memory storing a computer program, wherein the computer program, when executed by the processor, performs the method described above. All implementations in the above method embodiments are applicable to this embodiment and can achieve the same technical effects.

[0199] Embodiments of the present invention also provide a computer-readable storage medium storing instructions that, when executed on a computer, cause the computer to perform the method described above. All implementations in the above method embodiments are applicable to this embodiment and can achieve the same technical effects.

[0200] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0201] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0202] In the embodiments provided by this invention, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0203] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0204] In addition, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0205] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, essentially, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, ROM, RAM, magnetic disks, or optical disks.

[0206] Furthermore, it should be noted that in the apparatus and method of the present invention, it is obvious that the components or steps can be decomposed and / or recombined. These decompositions and / or recombinations should be considered equivalent solutions of the present invention. Moreover, the steps performing the above-described series of processes can naturally be executed in the order described, but are not necessarily required to be executed in chronological order; some steps can be executed in parallel or independently of each other. Those skilled in the art will understand that all or any step or component of the method and apparatus of the present invention can be implemented in any computing device (including processors, storage media, etc.) or network of computing devices, in hardware, firmware, software, or a combination thereof. This is something that those skilled in the art can achieve by using their basic programming skills after reading the description of the present invention.

[0207] Therefore, the object of the present invention can also be achieved by running a program or a set of programs on any computing device. The computing device can be a known general-purpose device. Therefore, the object of the present invention can also be achieved simply by providing a program product containing program code implementing the method or apparatus. That is, such a program product also constitutes the present invention, and the storage medium storing such a program product also constitutes the present invention. Obviously, the storage medium can be any known storage medium or any storage medium developed in the future. It should also be noted that in the apparatus and method of the present invention, it is obvious that the components or steps can be decomposed and / or recombined. These decompositions and / or recombinations should be considered equivalent to the present invention. Furthermore, the steps performing the above series of processes can naturally be performed in the order described, but are not necessarily required to be performed in chronological order. Some steps can be performed in parallel or independently of each other.

[0208] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for accessing a network, characterized in that, Applied to terminals, including: In the idle state, the downlink frequency bands of the candidate normal uplink NUL carrier and the auxiliary uplink SUL carrier are measured to obtain the measurement results; Based on the measurement results, access the network; Based on the measurement results, network access is performed, including: If the first measurement result indicates that the signal strength of the NUL carrier is greater than the first threshold, then the NUL carrier is used to access the network. The first measurement result is the result obtained by measuring the NUL carrier. If the first measurement result indicates that the signal strength of the NUL carrier is less than or equal to the first threshold, then based on the difference between the first measurement result and the second measurement result, the NUL carrier is selected to access the network or the SUL carrier is selected to access the network, wherein the second measurement result is the result obtained by measuring the SUL carrier; Based on the difference between the first measurement result and the second measurement result, selecting either the NUL carrier access network or the SUL carrier access network includes: If the difference between the first measurement result and the second measurement result is greater than the second threshold, then the NUL carrier is selected to access the network; otherwise, the SUL carrier is selected to access the network. The second threshold is determined through the following process: Obtain the current uplink signal quality SINR; The current throughput is determined based on the maximum uplink signal quality SINR_max, the maximum throughput_max, and the current uplink signal quality SINR; wherein, the uplink signal quality SINR is positively correlated with the current throughput_max. The second threshold is determined based on the current throughput and the carrier load. Where, throughput' = throughput_max * (1 - f(SINR_max - SINR)); or throughput'=y(SINR); Wherein, the y function refers to the estimated uplink throughput under different uplink channel conditions; The f function is used to obtain the ratio between the rate of decrease and the peak rate, given the known SINR decrease.

2. The method for accessing a network according to claim 1, characterized in that, Measurements were performed on the downlink frequency bands of the candidate normal uplink NUL carrier and the auxiliary uplink SUL carrier, and the measurement results were obtained, including: The downlink frequency band of the candidate normal uplink NUL carrier is measured to obtain the first measurement result; The downlink frequency band of the auxiliary uplink SUL carrier is measured to obtain a second measurement result.

3. The method for accessing a network according to claim 2, characterized in that, Based on the measurement results, network access is performed, including: Based on the difference between the first measurement result and the second measurement result, either the NUL carrier access network or the SUL carrier access network is selected.

4. The method for accessing a network according to claim 1, characterized in that, The second threshold is determined based on the current throughput and the carrier load, including: Throughput(NUL) - Throughput(SUL) > X, where Throughput(NUL) is the first measurement value, Throughput(SUL) is the second measurement value, and X is the second threshold. For SUL or NUL: Throughput=throughput'*(1-load) =throughput_max*(1-f(SIN_max-SINR))*(1-load) =throughput_max*(1-f(SIN_max-A(RSRP,frequency)))*(1-load) Where load is the carrier load, RSRP is the measured value, load is the load factor, and f function, y function, SINR_max and A function are all empirical values ​​or preset values; f function, y function and A function are all strongly correlated with frequency.

5. The method for accessing a network according to claim 1, characterized in that, The second threshold is determined based on the current throughput and the carrier load, including: Throughput(NUL) - Throughput(SUL) > X, where Throughput(NUL) is the first measurement value, Throughput(SUL) is the second measurement value, and X is the second threshold. For SUL or NUL: Throughput=throughput'*(1-load) =y(A(RSRP,frequency))*(1-load) Among them, RSRP is obtained by measurement, load is the load factor, and the y function and A function are empirical values ​​that are strongly correlated with the frequency.

6. A device for accessing a network, characterized in that, Applied to a terminal, the device includes: The processing module is used to measure the downlink frequency bands of candidate normal uplink NUL carriers and auxiliary uplink SUL carriers in the idle state and obtain the measurement results. The transceiver module is used to access the network based on the measurement results; The transceiver module is specifically used for: If the first measurement result indicates that the signal strength of the NUL carrier is greater than the first threshold, then the NUL carrier is used to access the network. The first measurement result is the result obtained by measuring the NUL carrier. If the first measurement result indicates that the signal strength of the NUL carrier is less than or equal to the first threshold, then based on the difference between the first measurement result and the second measurement result, the NUL carrier is selected to access the network or the SUL carrier is selected to access the network, wherein the second measurement result is the result obtained by measuring the SUL carrier; Based on the difference between the first measurement result and the second measurement result, selecting either the NUL carrier access network or the SUL carrier access network includes: If the difference between the first measurement result and the second measurement result is greater than the second threshold, then the NUL carrier is selected to access the network; otherwise, the SUL carrier is selected to access the network. The second threshold is determined through the following process: Obtain the current uplink signal quality SINR; The current throughput is determined based on the maximum uplink signal quality SINR_max, the maximum throughput_max, and the current uplink signal quality SINR; wherein, the uplink signal quality SINR is positively correlated with the current throughput_max. The second threshold is determined based on the current throughput and the carrier load. Where, throughput' = throughput_max * (1 - f(SINR_max - SINR)); or throughput'=y(SINR); Wherein, the y function refers to the estimated uplink throughput under different uplink channel conditions; The f function is used to obtain the ratio between the rate of decrease and the peak rate, given the known SINR decrease.

7. A terminal, characterized in that, include: The processor is used to measure the downlink frequency bands of candidate normal uplink NUL carriers and auxiliary uplink SUL carriers in the idle state and obtain measurement results. A transceiver, used to access the network based on the measurement results; Based on the measurement results, network access is performed, including: If the first measurement result indicates that the signal strength of the NUL carrier is greater than the first threshold, then the NUL carrier is used to access the network. The first measurement result is the result obtained by measuring the NUL carrier. If the first measurement result indicates that the signal strength of the NUL carrier is less than or equal to the first threshold, then based on the difference between the first measurement result and the second measurement result, the NUL carrier is selected to access the network or the SUL carrier is selected to access the network, wherein the second measurement result is the result obtained by measuring the SUL carrier; Based on the difference between the first measurement result and the second measurement result, selecting either the NUL carrier access network or the SUL carrier access network includes: If the difference between the first measurement result and the second measurement result is greater than the second threshold, then the NUL carrier is selected to access the network; otherwise, the SUL carrier is selected to access the network. The second threshold is determined through the following process: Obtain the current uplink signal quality SINR; The current throughput is determined based on the maximum uplink signal quality SINR_max, the maximum throughput_max, and the current uplink signal quality SINR; wherein, the uplink signal quality SINR is positively correlated with the current throughput_max. The second threshold is determined based on the current throughput and the carrier load. Where, throughput' = throughput_max * (1 - f(SINR_max - SINR)); or throughput'=y(SINR); Wherein, the y function refers to the estimated uplink throughput under different uplink channel conditions; The f function is used to obtain the ratio between the rate of decrease and the peak rate, given the known SINR decrease.

8. A communication device, characterized in that, include: A processor, a memory storing a computer program, wherein the computer program, when executed by the processor, performs the method as described in any one of claims 1 to 5.

9. A computer-readable storage medium, characterized in that, A storage instruction that, when executed on a computer, causes the computer to perform the method as described in any one of claims 1 to 5.

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