WO2022012386A1

WO2022012386A1 - Terminal access method, terminal and storage medium

Info

Publication number: WO2022012386A1
Application number: PCT/CN2021/104918
Authority: WO
Inventors: 张晓然; 胡南; 李男
Original assignee: 中国移动通信有限公司研究院; 中国移动通信集团有限公司
Priority date: 2020-07-13
Filing date: 2021-07-07
Publication date: 2022-01-20
Also published as: CN113939037A

Abstract

Disclosed are a terminal access method, a terminal and a storage medium. The method comprises: a terminal determining a first parameter, a compensation parameter, a second parameter and threshold values, wherein the first parameter represents a reference signal received power (RSRP), the compensation parameter is the maximum value between a first power value and 0, the first power value represents the difference between the maximum allowed transmission power of a cell and an equivalent transmission power of the terminal, the second parameter represents reference signal received quality (RSRQ), and the threshold values comprise a first threshold value and a second threshold value; on the basis of the first parameter, the compensation parameter and the first threshold value, the terminal determining whether a first condition is satisfied, and according to the second parameter and the second threshold value, the terminal determining whether a second condition is satisfied; and according to determination results, determining whether the cell satisfies a cell access or dwell condition.

Description

A terminal access method, terminal and storage medium

CROSS-REFERENCE TO RELATED APPLICATIONS

The present disclosure is based on the Chinese patent application with the application number of 202010670817.5 and the filing date of July 13, 2020, and claims the priority of the Chinese patent application, the entire contents of which are hereby incorporated into the present disclosure by reference.

technical field

The present disclosure relates to the field of wireless communication technologies, and in particular, to a terminal access method, a terminal, and a storage medium.

Background technique

When a terminal performs cell selection and reselection in an idle state, it usually uses relevant criteria to determine whether a cell satisfies the conditions. For lightweight terminals, because lightweight terminals are more sensitive to cost and volume, some indicators, such as the number of antennas, bandwidth, and transmit power, may be reduced. Then the lightweight terminal may be unable to camp or access during the cell camping or cell access process.

SUMMARY OF THE INVENTION

Embodiments of the present disclosure provide a terminal access method, a terminal, and a storage medium.

The technical solutions of the embodiments of the present disclosure are implemented as follows:

An embodiment of the present disclosure provides a terminal access method. The method includes: the terminal determines a first parameter, a compensation parameter, a second parameter, and a threshold value, where the first parameter represents a reference signal received power (RSRP, Reference Signal Received Power). Receiving Power); the compensation parameter is the maximum value between the first power value and 0; the first power value represents the difference between the maximum transmit power allowed by the cell and the equivalent transmit power of the terminal; the Two parameters characterize the reference signal receiving quality (RSRQ, Reference Signal Receiving Quality); the threshold value includes a first threshold value and a second threshold value;

The terminal judges whether the first condition is met based on the first parameter, the compensation parameter and the first threshold value, and judges whether the second condition is met according to the second parameter and the second threshold value ; Determine whether the cell satisfies the cell access or camping conditions according to the judgment result.

In some optional embodiments of the present disclosure, the RSRP includes an RSRP measured by the terminal or an equivalent RSRP.

In some optional embodiments of the present disclosure, the terminal judging whether the first condition is satisfied based on the first parameter, the compensation parameter and the first threshold value includes: the terminal judging the first condition Whether the difference between the parameter, the compensation parameter, the first threshold value, and the first offset parameter is greater than zero; determining whether the second condition is satisfied according to the second parameter and the second threshold value, The method includes: determining, by the terminal, whether the difference between the second parameter, the second threshold value and the second offset parameter is greater than zero.

In some optional embodiments of the present disclosure, the equivalent transmit power includes at least one of the following:

The maximum transmit power that can be achieved by a single antenna port of the terminal, or the maximum transmit power corresponding to the transmit power level of a single antenna port;

The maximum transmit power that can be reached by a radio frequency channel or a power amplifier of the terminal, or the maximum transmit power corresponding to the transmit power level of a radio frequency channel or a power amplifier;

The maximum transmit power that can be achieved when the terminal is in the idle state and/or the deactivated state, or the maximum transmit power corresponding to the transmit power level when the terminal is in the idle state and/or the deactivated state;

The maximum transmit power that can be achieved in the process of cell access or cell camping initiated by the terminal, or the maximum transmit power corresponding to the transmit power level in the process of cell access or cell camping initiated by the terminal;

The maximum transmit power corresponding to the transmit power level of the terminal;

The sum of the maximum transmit power achievable by the single antenna port of the terminal and the transmit gain or compensation value, or the sum of the maximum transmit power and transmit gain or compensation value corresponding to the transmit power level of the single antenna port;

The sum of the maximum transmit power that can be reached by a radio frequency channel or a power amplifier of the terminal and the transmit gain or compensation value, or the sum of the maximum transmit power and transmit gain or compensation value corresponding to the transmit power level of a radio frequency channel or a power amplifier;

The sum of the maximum transmit power attainable by the terminal in the idle state and/or the deactivated state and the transmit gain or compensation value, or the maximum transmit power and transmit gain or compensation corresponding to the transmit power level when the terminal is in the idle state and/or in the deactivated state the sum of the values;

The sum of the maximum transmit power and transmit gain or compensation value that can be achieved during the terminal-initiated cell access or cell camping process, or the maximum transmit power and transmit gain corresponding to the transmit power level during the terminal-initiated cell access or cell camping process or the sum of compensation values;

The sum of the maximum transmit power corresponding to the transmit power level of the terminal and the transmit gain or compensation value.

In some optional embodiments of the present disclosure, obtaining the equivalent RSRP by the terminal includes: adding, by the terminal, the measured RSRP and the transmit gain or compensation value to obtain the equivalent RSRP.

In some optional embodiments of the present disclosure, the transmit gain or compensation value includes at least one of the following:

Repeated transmission of gain or compensation values;

Antenna gain or compensation value;

Transmission mode gain or compensation value.

In some optional embodiments of the present disclosure, before the terminal determines the threshold value, the method further includes: the terminal obtains at least two first threshold parameters sent by the network device; the at least two first threshold parameters use for cell selection; wherein, the at least two first threshold parameters correspond to different types of terminals; the at least two first threshold parameters include at least two thresholds or one threshold corresponding to each type of terminal Offset values corresponding to each type of terminal.

In some optional embodiments of the present disclosure, determining the first threshold value by the terminal includes: selecting, by the terminal, a threshold value related to the terminal from at least two threshold values included in the at least two first threshold parameters. the first threshold value corresponding to the type; or,

The terminal selects an offset value corresponding to the type of the terminal according to a threshold value included in the at least two first threshold parameters and an offset value corresponding to each type of terminal, and according to the one threshold value and the selected offset value to obtain the first threshold value.

In some optional embodiments of the present disclosure, the method further includes: obtaining, by the terminal, at least two second threshold parameters sent by the network device; and the at least two second threshold parameters are used to select a supplementary uplink carrier to initiate random access; or, the terminal obtains at least two third threshold parameters sent by the network device; the at least two third threshold parameters are used to initiate two-step random access on one or more uplink carriers; wherein, the The at least two second threshold parameters or the at least two third threshold parameters correspond to different types of terminals; the at least two second threshold parameters or the at least two third threshold parameters include at least terminals corresponding to each type At least two threshold values of , or one threshold value and the offset value corresponding to each type of terminal.

In some optional embodiments of the present disclosure, the method further includes: determining, by the terminal, a second threshold value, and determining, according to the measured RSRP and the second threshold value, whether to initiate a signal on the supplementary uplink carrier random access.

In some optional embodiments of the present disclosure, the method further includes: the terminal determining a third threshold value, and determining whether the third threshold value is within the third threshold value according to the measured RSRP and the third threshold value The uplink carrier corresponding to the value initiates two-step random access.

In some optional embodiments of the present disclosure, the terminal determines whether to initiate random access on the supplementary uplink carrier according to the measured RSRP and the second threshold value, including: when the measured RSRP is greater than the When the second threshold value is set, it is determined to initiate random access on the supplementary uplink carrier; when the measured RSRP is not greater than the second threshold value, it is determined to initiate random access on the common uplink carrier.

In some optional embodiments of the present disclosure, the terminal determines, according to the measured RSRP and the third threshold value, whether to initiate two-step random access on the uplink carrier corresponding to the third threshold value, including : when the measured RSRP is greater than the third threshold, determine to initiate two-step random access on the uplink carrier corresponding to the third threshold; when the measured RSRP is not greater than the third threshold is determined to initiate four-step random access on the uplink carrier corresponding to the third threshold value.

In some optional embodiments of the present disclosure, the determining, by the terminal, the second threshold value includes: the terminal selecting, by the terminal from at least two threshold values included in the at least two second threshold parameters, and the terminal The second threshold value corresponding to the type of ; or,

The terminal selects an offset value corresponding to the type of the terminal according to a threshold value included in the at least two second threshold parameters and an offset value corresponding to each type of terminal, and according to the one threshold value and the selected offset value to obtain the second threshold value.

In some optional embodiments of the present disclosure, the determining, by the terminal, the third threshold value includes: the terminal selecting the terminal from at least two threshold values included in the at least two third threshold parameters The third threshold value corresponding to the type of ; or,

The terminal selects an offset value corresponding to the type of the terminal according to a threshold value included in the at least two third threshold parameters and an offset value corresponding to each type of terminal, and selects an offset value corresponding to the type of the terminal according to the one threshold value. and the selected offset value to obtain the third threshold value.

An embodiment of the present disclosure further provides a terminal, where the terminal includes: a first determination unit, a determination unit, and a second determination unit; wherein,

The first determining unit is configured to determine a first parameter, a compensation parameter, a second parameter and a threshold value, where the first parameter represents RSRP; the compensation parameter is the maximum value among the first power value and 0; The first power value represents the difference between the maximum transmit power allowed by the cell and the equivalent transmit power of the terminal; the second parameter represents the RSRQ; the threshold value includes a first threshold value and a second threshold value;

The judging unit is configured to judge whether a first condition is satisfied based on the first parameter, the compensation parameter and the first threshold value, and to judge whether a first condition is satisfied according to the second parameter and the second threshold value meet the second condition;

The second determination unit is configured to determine whether the cell satisfies the cell access or camping condition according to the determination result of the determination unit.

In some optional embodiments of the present disclosure, the judging unit is configured to judge whether the difference between the first parameter, the compensation parameter, the first threshold value, and the first offset parameter is greater than zero; It is also configured to judge whether the difference between the second parameter, the second threshold value and the second offset parameter is greater than zero.

In some optional embodiments of the present disclosure, the first determining unit is configured to add and process the measured RSRP and the transmit gain or compensation value to obtain an equivalent RSRP.

In some optional embodiments of the present disclosure, the transmit gain or compensation value includes at least one of the following: repeated transmission gain or compensation value;

Antenna gain or compensation value;

Transmission mode gain or compensation value.

In some optional embodiments of the present disclosure, the terminal further includes a first obtaining unit, configured to obtain at least two first threshold parameters sent by the network device before the first determining unit determines the threshold value; the At least two first threshold parameters are used for cell selection; wherein, the at least two first threshold parameters correspond to different types of terminals; the at least two first threshold parameters include at least two thresholds corresponding to each type of terminal A limit value, or a threshold value and an offset value corresponding to each type of terminal.

In some optional embodiments of the present disclosure, the first determining unit is configured to select a first threshold value corresponding to the type of the terminal from at least two threshold values included in the at least two first threshold parameters. a threshold value; or, according to a threshold value included in the at least two first threshold parameters and the offset value corresponding to each type of terminal, select the offset value corresponding to the type of the terminal, and select the offset value corresponding to the type of the terminal according to the The first threshold value is obtained from the one threshold value and the selected offset value.

In some optional embodiments of the present disclosure, the terminal further includes a second obtaining unit, configured to obtain at least two second threshold parameters sent by the network device; the at least two second threshold parameters are used for selecting The uplink carrier initiates random access; or, at least two third threshold parameters sent by the network device are obtained; the at least two third threshold parameters are used to initiate two-step random access on one or more uplink carriers; The at least two second threshold parameters or the at least two third threshold parameters correspond to different types of terminals; the at least two second threshold parameters or the at least two third threshold parameters include at least terminals corresponding to each type At least two threshold values of , or one threshold value and the offset value corresponding to each type of terminal.

In some optional embodiments of the present disclosure, the first determining unit is further configured to determine a second threshold value;

The second determining unit is further configured to determine whether to initiate random access on the supplementary uplink carrier according to the measured RSRP and the second threshold.

In some optional embodiments of the present disclosure, the first determining unit is further configured to determine a third threshold value;

The second determining unit is further configured to determine whether to initiate two-step random access on the uplink carrier corresponding to the third threshold value according to the RSRP obtained by measurement and the third threshold value.

In some optional embodiments of the present disclosure, the second determining unit is configured to determine to initiate random access on the supplementary uplink carrier when the measured RSRP is greater than the second threshold; When the RSRP is not greater than the second threshold value, it is determined to initiate random access on the common uplink carrier.

In some optional embodiments of the present disclosure, the second determining unit is configured to, when the measured RSRP is greater than the third threshold value, determine that the uplink carrier corresponding to the third threshold value initiates two step random access; when the measured RSRP is not greater than the third threshold value, it is determined to initiate four step random access on the uplink carrier corresponding to the third threshold value.

In some optional embodiments of the present disclosure, the first determining unit is configured to select a second threshold value corresponding to the type of the terminal from at least two threshold values included in the at least two second threshold parameters a threshold value; or, according to a threshold value included in the at least two second threshold parameters and an offset value corresponding to each type of terminal, select an offset value corresponding to the type of the terminal, according to the one The second threshold value is obtained from the threshold value and the selected offset value.

In some optional embodiments of the present disclosure, the first determining unit is configured to select a third threshold value corresponding to the type of the terminal from at least two threshold values included in the at least two third threshold parameters a threshold value; or, according to a threshold value included in the at least two third threshold parameters and an offset value corresponding to each type of terminal, select an offset value corresponding to the type of the terminal, according to the one The third threshold value is obtained from the threshold value and the selected offset value.

The embodiments of the present disclosure also provide a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, implements the steps of the methods described in the embodiments of the present disclosure.

Embodiments of the present disclosure further provide a terminal, including a memory, a processor, and a computer program stored in the memory and running on the processor, where the processor implements the methods described in the embodiments of the present disclosure when the processor executes the program. step.

The terminal access method, the terminal, and the storage medium provided by the embodiments of the present disclosure include: the terminal determines a first parameter, a compensation parameter, a second parameter, and a threshold value, where the first parameter represents RSRP; the compensation parameter is the maximum value among the first power value and 0; the first power value represents the difference between the maximum transmit power allowed by the cell and the equivalent transmit power of the terminal; the second parameter represents the RSRQ; the gate The limit value includes a first threshold value and a second threshold value; the terminal judges whether the first condition is satisfied based on the first parameter, the compensation parameter and the first threshold value, and determines whether the first condition is satisfied according to the second threshold value. The parameter and the second threshold value determine whether the second condition is met; and whether the cell meets the cell access or camping condition is determined according to the judgment result. By adopting the technical solutions of the embodiments of the present disclosure, through the newly defined cell access or camping conditions, it is avoided that the lightweight terminal cannot camp on or cannot be connected during the cell camping or cell access process due to the reduction of some indicators. In case of incoming, the continuity of cell access and camping of different types of terminals is realized, and the continuity of the mobility of the terminals is ensured.

Description of drawings

FIG. 1 is a schematic flowchart 1 of a terminal access method according to an embodiment of the present disclosure;

FIG. 2 is a second schematic flowchart of a terminal access method according to an embodiment of the present disclosure;

FIG. 3 is a third schematic flowchart of a terminal access method according to an embodiment of the present disclosure;

FIG. 4 is a schematic diagram of a composition structure of a terminal according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a hardware composition of a terminal according to an embodiment of the present disclosure.

detailed description

The present disclosure will be described in further detail below with reference to the accompanying drawings and specific embodiments.

The terminal access method in this embodiment can be applied to various communication systems, such as a Global System of Mobile communication (GSM, Global System of Mobile communication) system, a Long Term Evolution (LTE, Long Term Evolution) system, or a 5G system, and the like. A communication system may include network equipment and terminals (also called terminal equipment, user equipment, etc.). The network equipment may provide communication coverage for a certain area, and may communicate with terminals in the area. Exemplarily, the network device may be a base station or other network device in a communication system. Optionally, a 5G system or a 5G network may also be referred to as a New Radio (NR, New Radio) system or an NR network. The terminal may be a phone (eg, a mobile phone), a wearable device (eg, a smart watch), a low-cost handheld terminal, and the like.

In the case where the terminal is a lightweight terminal such as a wearable device (such as a smart watch) and a low-cost handheld terminal, some indicators of these types of terminals may be reduced, and there may be failures during cell camping or cell access. resident or inaccessible.

Taking cell selection as an example, for example, the dwell threshold broadcast in the system message is Q _rxlevmin =-100dBm, the maximum transmit power allowed by the cell P _EMAX1 =23dBm, and other thresholds are temporarily ignored. Then according to the S criterion:

Srxlev=Q _rxlevmeas –(Q _rxlevmin )–P _compensation

P _compensation =max(P _EMAX1 –P _PowerClass ,0)(dB)

If Srxlev is greater than 0 and greater than 0, it is possible to camp on the cell. Wherein, Q _rxlevmeas may represent RSRP; Q _rxlevmin represents the RSRP threshold; P _PowerClass represents the maximum transmit power corresponding to the transmit level of the power amplifier.

Assuming that the RSRP detected by the common terminal is Q _rxlevmeas =-99dBm, Srxlv=-99+100-0=1>0, it can camp on the cell.

And the RSRP detected by the lightweight terminal (transmit power is 20dBm) is Q _rxlevmeas =-99dBm, Srxlv =-99+100-3=-2<0, it cannot camp in the cell, but in fact the lightweight terminal The terminal can achieve the same coverage capability as the ordinary terminal by using some enhancement techniques such as repeated transmission, but due to limited power and current standards, it cannot camp in this cell, resulting in the lightweight terminal in the network. Cover the loopholes.

Based on this, the following embodiments of the present disclosure are proposed.

The embodiments of the present disclosure provide a terminal access method. FIG. 1 is a schematic flowchart 1 of a terminal access method according to an embodiment of the present disclosure; as shown in FIG. 1 , the method includes:

Step 101: The terminal determines a first parameter, a compensation parameter, a second parameter, and a threshold value, where the first parameter represents RSRP; the compensation parameter is the maximum value among the first power value and 0; the first power The value represents the difference between the maximum transmit power allowed by the cell and the equivalent transmit power of the terminal; the second parameter represents the RSRQ; the threshold value includes a first threshold value and a second threshold value;

Step 102: The terminal determines whether the first condition is satisfied based on the first parameter, the compensation parameter and the first threshold value, and determines whether the first condition is satisfied according to the second parameter and the second threshold value The second condition: determining whether the cell satisfies the cell access condition or the camping condition according to the judgment result.

In this embodiment, the terminal can determine whether it can camp on the cell or whether it can access the cell based on the following criteria:

RSRP-first threshold value-compensation parameter-first offset parameter>0 (1)

RSRQ-second threshold value-second offset parameter>0 (2)

In this embodiment, when the terminal detects that the cell satisfies the conditions of the above formula (1) and formula (2), it can determine that the cell camping or access conditions are met. Since the condition expressed by the above formula (2) is the same as the conventional condition, this embodiment mainly improves the condition in the above formula (1). The conditions of the above formula (1) and formula (2) may also be referred to as cell selection criteria.

In some optional embodiments, the terminal may obtain the above-mentioned first threshold value and second threshold value sent by the network device. Exemplarily, the terminal may receive a system message sent by a network device, where the system message may include the foregoing first threshold value and second threshold value.

In this embodiment, the RSRP includes an RSRP measured by the terminal or an equivalent RSRP.

Optionally, obtaining the equivalent RSRP by the terminal includes: adding, by the terminal, the measured RSRP and the transmit gain or compensation value to obtain the equivalent RSRP.

The sum of the maximum transmit power that can be reached by a radio frequency channel or a power amplifier of the terminal and the transmit gain or compensation value, or the sum of the maximum transmit power corresponding to the transmit power level of a radio frequency channel or a power amplifier and the transmit gain or compensation value;

The sum of the maximum transmit power attainable by the terminal in the idle state and/or the deactivated state and the transmit gain or compensation value, or the maximum transmit power and transmit gain or compensation value corresponding to the transmit power level when the terminal is in the idle state and/or in the deactivated state the sum of the values;

Antenna gain or compensation value;

Transmission mode gain or compensation value.

Exemplarily, the above-mentioned transmit gain or compensation value may be pre-configured by the terminal, or configured by a network device.

In some optional embodiments of the present disclosure, before the terminal determines the threshold value, the method further includes: the terminal obtains at least two first threshold parameters sent by the network device; the at least two first threshold parameters use for cell selection; wherein, at least two first threshold parameters correspond to different types of terminals; the at least two first threshold parameters include at least two thresholds corresponding to each type of terminals, or one threshold and each The offset value corresponding to the type of terminal.

In some optional embodiments, the terminal determining the first threshold value includes: selecting, by the terminal, a threshold value corresponding to the type of the terminal from at least two threshold values included in the at least two first threshold parameters. a first threshold value; or, the terminal selects an offset corresponding to the type of the terminal according to a threshold value included in the at least two first threshold parameters and an offset value corresponding to each type of terminal value, the first threshold value is obtained according to the one threshold value and the selected offset value.

In this embodiment, in an example, the network device may send at least two first threshold values for cell selection, wherein the at least two first threshold values correspond to different types of terminals, and the terminal may select from A first threshold value corresponding to its own type is selected from the at least two first threshold values; in another example, the network device may send a threshold value and an offset value corresponding to each type of terminal for cell selection , it can be understood that for the number N of terminal types, there are offset values corresponding to N-1, and the above-mentioned one threshold value is the first threshold value corresponding to one type of terminal, then the first threshold value corresponding to other types of terminals The threshold value can be calculated by the above-mentioned threshold value and offset value; then the terminal can select the offset value corresponding to its own type from at least two offset values, and determine the corresponding first value based on the threshold value and the offset value. a threshold value. Further calculate based on the selected first threshold value with reference to the aforementioned formula (1), and determine whether the calculation result is greater than zero. If the calculation result is greater than zero, it can be determined that the cell can be stationed or accessed. If the settlement result is less than or equal to zero, Then it can be determined that the cell cannot be camped on or accessed.

Based on the foregoing embodiments, an embodiment of the present disclosure further provides a terminal access method. FIG. 2 is a second schematic flowchart of the terminal access method according to the embodiment of the present disclosure; as shown in FIG. 2 , the method may further include:

Step 103: the terminal obtains at least two second threshold parameters sent by the network device; the at least two second threshold parameters are used to select the supplementary uplink carrier to initiate random access; wherein, the at least two second threshold parameters The parameters correspond to different types of terminals; the at least two second threshold parameters include at least two threshold values corresponding to each type of terminal, or one threshold value and an offset value corresponding to each type of terminal;

Step 104: The terminal determines a second threshold value, and determines whether to initiate random access on the supplementary uplink carrier according to the measured RSRP and the second threshold value.

In this embodiment, on the basis that the terminal resides in the cell or accesses the cell, it is further determined whether to initiate random access on the supplementary uplink carrier.

Exemplarily, the terminal may receive a system message sent by the network device, where the system message may include the above-mentioned at least two second threshold parameters, and the second threshold parameters are used to select whether to initiate random access on the supplementary uplink carrier.

In some optional embodiments, the determining, by the terminal, the second threshold value includes: selecting, by the terminal, corresponding to the type of the terminal from at least two threshold values included in the at least two second threshold parameters. or, the terminal selects the offset corresponding to the type of the terminal according to a threshold value included in the at least two second threshold parameters and the offset value corresponding to each type of terminal value, the second threshold value is obtained according to the one threshold value and the selected offset value.

In an example, the network device may send at least two second thresholds for selecting the supplementary uplink carrier to initiate random access, wherein the at least two second thresholds correspond to different types of terminals, and the terminals may be based on their own type selects a second threshold value corresponding to its own type from at least two second threshold values; in another example, the network device may send a threshold value and For the offset values corresponding to each type of terminal, it can be understood that for the number N of terminal types, there are offset values corresponding to N-1, and the above-mentioned one threshold value is the second threshold value corresponding to one type of terminal, Then the second threshold value corresponding to other types of terminals can be calculated by the above-mentioned threshold value and offset value; then the terminal can select the offset value corresponding to its own type from at least two offset values, based on the threshold The value and the offset value determine the corresponding second threshold value. Further judgment is made based on the selected second threshold value to determine whether to initiate random access on the supplementary uplink carrier.

In some optional embodiments, the terminal determines whether to initiate random access on the supplementary uplink carrier according to the measured RSRP and the second threshold, including: when the measured RSRP is greater than the second When the threshold value is set, it is determined to initiate random access on the supplementary uplink carrier; when the measured RSRP is not greater than the second threshold value, it is determined to initiate random access on the common uplink carrier.

Based on the foregoing embodiments, an embodiment of the present disclosure further provides a terminal access method. FIG. 3 is a third schematic flowchart of the terminal access method according to the embodiment of the present disclosure; as shown in FIG. 3 , the method may further include:

Step 105: The terminal obtains at least two third threshold parameters sent by the network device, and the at least two third threshold parameters are used to initiate two-step random access on one or more uplink carriers; wherein the at least two The three third threshold parameters correspond to different types of terminals; the at least two third threshold parameters include at least two threshold values corresponding to each type of terminal, or one threshold value and an offset value corresponding to each type of terminal ;

Step 106: The terminal determines a third threshold value, and determines whether to initiate two-step random access on the uplink carrier corresponding to the third threshold value according to the measured RSRP and the third threshold value.

In this embodiment, on the basis that the terminal resides in the cell or accesses the cell, it is further determined whether to initiate two-step random access on the uplink carrier.

Exemplarily, the terminal may receive a system message sent by the network device, where the system message may include the above at least two third threshold parameters, and the third threshold parameters are used to select whether to initiate two-step random access on the uplink carrier.

In some optional embodiments, determining, by the terminal, a third threshold value includes: selecting, by the terminal, corresponding to the type of the terminal from at least two threshold values included in the at least two third threshold parameters. or, the terminal selects the offset corresponding to the type of the terminal according to a threshold value included in the at least two third threshold parameters and the offset value corresponding to each type of terminal value, the third threshold value is obtained according to the one threshold value and the selected offset value.

In an example, the network device may send at least two third threshold values for initiating two-step random access on one or more uplink carriers, wherein the at least two third threshold values correspond to different types of terminals, and the terminal A third threshold value corresponding to its own type may be selected from at least two third threshold values based on its own type; in another example, the network device may initiate two-step randomization on one or more uplink carriers Access and send a threshold value and offset values corresponding to each type of terminal. It can be understood that for the number N of terminal types, there are offset values corresponding to N-1, and the above threshold value is a type of terminal The corresponding third threshold value, the third threshold value corresponding to other types of terminals can be calculated by the above-mentioned threshold value and offset value; then the terminal can select from at least two offset values corresponding to its own type The offset value of , and the corresponding third threshold value is determined based on the threshold value and the offset value. Further judgment is made based on the selected third threshold value to determine whether to initiate two-step random access on one or more uplink carriers.

By adopting the technical solutions of the embodiments of the present disclosure, through the newly defined cell access or camping conditions, it is avoided that the lightweight terminal cannot camp on or cannot be connected during the cell camping or cell access process due to the reduction of some indicators. In case of incoming, the continuity of cell access and camping of different types of terminals is realized, and the continuity of the mobility of the terminals is ensured.

The terminal access method according to the embodiment of the present disclosure will be described below with reference to specific examples.

Example 1

Step 1. The base station of the cell broadcasts a system message, and the system message includes a maximum allowable transmit power of 23dBm;

Step 2. The maximum transmit power corresponding to the transmit power level of the terminal is 20dBm; the transmit gain is 3dBm, and the transmit gain is obtained due to repeated transmission in the time domain, so the equivalent transmit power of the terminal = the maximum transmit power corresponding to the transmit power level + the transmit Gain=20dBm+3dBm=23dBm;

Step 3. The terminal determines a compensation parameter, which is the maximum value between the first power value and 0; the first power value represents the difference between the maximum transmit power allowed by the cell and the equivalent transmit power of the terminal ;Then compensation parameter=max(23-23,0)=0dB;

Step 4, the terminal measures and obtains the RSRP, and determines whether the cell selection criterion is satisfied according to the measured RSRP and the minimum allowed RSRP required for cell selection (that is, the first threshold value in the above embodiment); if the measured RSRP-allowed minimum RSRP If value-compensation parameter-other offset>0, the cell selection criterion is satisfied, and the cell can be camped on; otherwise, the cell cannot be camped on.

Example 2

Step 2. The maximum transmit power corresponding to the power level of the terminal is 26dBm, but the maximum transmit power of the terminal under a single radio channel or a single antenna port or the maximum transmit power that can be achieved by the transmit power level is 23dBm, then the equivalent transmit power of the terminal The power is 23dBm;

Example three

Step 2. When the terminal accesses the cell, the maximum transmit power that can be achieved in the idle state and/or the deactivated state, or the maximum transmit power corresponding to the transmit power level of the terminal in the idle state and/or the deactivated state is 23dBm; , because the transmission mode (such as transmit diversity) brings 3dB gain, the transmit gain of the terminal is 3dBm; therefore, the equivalent transmit power of the terminal is 23dBm+3dBm=26dBm;

Step 3. The terminal determines a compensation parameter, which is the maximum value between the first power value and 0; the first power value represents the difference between the maximum transmit power allowed by the cell and the equivalent transmit power of the terminal ;Then compensation parameter=max(23-26,0)=0dB;

Step 4, the terminal measures the RSRP, and determines whether the cell selection criterion is satisfied according to the measured RSRP and the minimum allowable RSRP required for cell selection (that is, the first threshold value in the above-mentioned embodiment); if the measured RSRP-allowed minimum RSRP If value-compensation parameter-other offset>0, the cell selection criterion is satisfied, and the cell can be camped on; otherwise, the cell cannot be camped on.

Example four

Step 2, the terminal determines an equivalent RSRP, where the equivalent RSRP is: RSRP measured by the terminal + the transmit gain of the terminal; when the terminal transmits the gain due to repeated transmission in the time domain, the transmit gain is 3dBm;

For example, if the RSRP measured by the terminal is -100dBm and the transmit gain is 3dBm, the equivalent RSRP is -100dBm+3dB=-97dBm;

Step 3, the equivalent transmit power of the terminal is 20dBm, then determine the compensation parameter, the compensation parameter is the maximum value among the first power value and 0; the first power value represents the maximum transmit power allowed by the cell and the terminal. The difference of the equivalent transmit power; then the compensation parameter=max(23-20,0)=3dBm;

Step 4. Determine whether the cell selection criterion is satisfied according to the equivalent RSRP and the minimum allowable RSRP required for cell selection (ie, the first threshold value in the above embodiment); if the equivalent RSRP-allowed minimum RSRP value-compensation parameter- If the other offsets are >0, the cell selection criterion is satisfied, and the cell can be camped on; otherwise, the cell cannot be camped on.

Example five

Step 1. The base station of the cell broadcasts a system message, and the system message includes a maximum allowable transmit power of 23dBm.

Step 2. The base station of the cell broadcasts a system message, and the system message includes at least two minimum received RSRP thresholds required for cell selection (ie, the first threshold in the above embodiment), wherein:

a) RSRP threshold 1=-103dBm, corresponding to a common terminal type terminal (such as a handheld terminal), or a terminal with a maximum transmit power of 23dBm; it is assumed that a common terminal type terminal (such as a handheld terminal), or a terminal with a maximum transmit power of 23dBm is recorded. is terminal type 1;

b) RSRP threshold 2=-106dBm, corresponding to a terminal of a lower or special terminal type (such as a wearable terminal), or a terminal with a maximum transmit power of 20dBm; assuming a terminal of a lower or special terminal type (such as a wearable terminal), Or the terminal with the maximum transmit power of 20dBm is recorded as terminal type 2.

It should be noted that, in steps 1 and 2 of this example, the base station can send the maximum allowable transmit power and at least two minimum received RSRP thresholds required for cell selection to the terminal through the same system message; The system message sent to the terminal is the maximum allowable transmit power and at least two minimum received RSRP thresholds required for cell selection, which are not limited in this example.

Step 3, the terminal determines a compensation parameter; the compensation parameter is the maximum value between the first power value and 0; the first power value represents the difference between the maximum transmit power allowed by the cell and the equivalent transmit power of the terminal ; then there are:

a) The maximum transmit power of terminal type 1 is 23dBm, then the compensation parameter=max(23-23,0)=0dBm;

b) The maximum transmit power of terminal type 2 is 20dBm, then the compensation parameter=max(23-20,0)=3dBm.

Step 4, the terminal selects the threshold corresponding to the terminal type from the at least 2 RSRP thresholds in step 2 according to its own type, and determines whether the cell satisfies the cell selection criterion. If the measured RSRP-allowed lowest RSRP value (that is, the above embodiment The first threshold value in )-compensation parameter-other offsets>0, then the cell selection criterion is satisfied, and the cell can be camped on; otherwise, the cell cannot be camped on.

Assuming that terminal 1 and terminal 2 are in the same location of the cell, the measured RSRP is -102dBm; the type of terminal 1 is the above terminal type 1, and the type of terminal 2 is the above terminal type 2;

i. Terminal 1 selects the corresponding RSRP threshold 1, then: -102dBm-(-103dBm)=1>0, which satisfies the cell selection criterion and can reside in the cell;

ii. The terminal 2 selects the corresponding RSRP threshold 2, then: -102dBm-(-106dBm)-3dB=1>0, which satisfies the cell selection criterion and can camp in the cell.

Step 5. The base station of the cell broadcasts a system message, and the system message includes at least two RSRP thresholds for selecting to initiate random access on the supplementary uplink carrier; wherein:

a) Threshold 1 corresponds to a common terminal type terminal (such as a handheld terminal), or a terminal with a maximum transmit power of 23dBm, that is, corresponds to terminal type 1;

b) Threshold 2 corresponds to a terminal of a lower or special terminal type (such as a wearable terminal), or a terminal with a maximum transmit power of 20 dBm, that is, corresponds to terminal type 2.

Step 6, the terminal selects the threshold corresponding to the terminal type from the two thresholds in step 5 according to its own type, and determines whether to initiate random access on the supplementary uplink carrier:

a) If the terminal type belongs to terminal type 1, the terminal selects the corresponding threshold 1, and when the RSRP measured by the terminal is greater than the threshold 1, it can initiate random access on the supplementary uplink carrier; otherwise, initiate random access on the common uplink carrier ;

b) If the terminal type belongs to terminal type 2, the terminal selects the corresponding threshold 2, and when the RSRP measured by the terminal is greater than the threshold 2, it can initiate random access on the supplementary uplink carrier; otherwise, initiate random access on the common uplink carrier.

Step 7. The base station of the cell broadcasts a system message, and the system message includes at least two RSRP thresholds for initiating two-step random access, and the at least two thresholds correspond to different types of terminals respectively; wherein,

b) Threshold 2 corresponds to a lower or special terminal type terminal (such as a wearable terminal), or a terminal with a maximum transmit power of 20 dBm, that is, corresponds to terminal type 2;

Step 8. The terminal selects the threshold corresponding to the terminal type from the two thresholds in 7 according to its own type, and determines whether to initiate two-step random access:

a) If the terminal type belongs to terminal type 1, the terminal selects the corresponding threshold 1. When the RSRP measured by the terminal is greater than the threshold 1, it can initiate two-step random access on the uplink carrier, otherwise it can initiate four-step random access on the uplink carrier. enter;

b) If the terminal type belongs to terminal type 2, the terminal selects the corresponding threshold 2. When the RSRP measured by the terminal is greater than the threshold 2, it can initiate two-step random access on the uplink carrier, otherwise, it can initiate four-step random access on the uplink carrier. enter.

It can be understood that, in step 6, it can be determined whether the carrier that initiates random access is a supplementary uplink carrier or a common carrier, and further, in step 8, it can be performed to initiate two-step random access or four-step random access on the determined supplementary uplink carrier or common carrier. Step random access.

Example six

Step 2. The base station of the cell broadcasts a system message, and the system message includes a minimum received RSRP threshold and an offset value (that is, the first threshold parameter in the above embodiment) required for cell selection, wherein:

b) Offset value = -3dB, the sum of threshold 1 and offset value is -106dBm, that is, RSRP threshold 2 is -106dBm, which corresponds to a lower or special terminal type terminal (such as a wearable terminal), or the maximum emission A terminal with a power of 20 dBm; a terminal with a lower or special terminal type (such as a wearable terminal), or a terminal with a maximum transmit power of 20 dBm is assumed to be terminal type 2.

It should be noted that in step 1 and step 2 of this example, the base station can send the maximum allowable transmit power and a minimum received RSRP threshold and an offset value required for cell selection to the terminal through the same system message; The maximum allowable transmit power, a minimum received RSRP threshold and an offset value required for cell selection may also be sent to the terminal through different system messages, which are not limited in this example.

b) The maximum transmit power of terminal type 2 is 20dBm, then the compensation parameter=max(23-20,0)=3dBm;

Step 4. The terminal selects the threshold corresponding to the terminal type from the at least 2 RSRP thresholds in step 2 according to its own type, and determines whether the cell satisfies the cell selection criteria. If the measured RSRP-allowed minimum RSRP value-compensation parameter-other If the offset is greater than 0, the cell selection criterion is satisfied, and the cell can be camped on; otherwise, the cell cannot be camped on.

Assuming that terminal 1 and terminal 2 are in the same location in the cell, the measured RSRP is -102dBm; the type of terminal 1 is the above terminal type 1, and the type of terminal 2 is the above terminal type 2;

i. Terminal 1 selects the corresponding RSRP threshold 1: then there is -102dBm-(-103dBm)=1>0, which meets the cell selection criteria and can reside in the cell;

ii. Terminal 2 selects the corresponding RSRP threshold 2: -102dBm-(-106dBm)-3dB=1>0, which satisfies the cell selection criterion and can camp in the cell.

Step 5. The base station of the cell broadcasts a system message, and the system message includes an RSRP threshold and an offset value for selecting a random access on the supplementary uplink carrier, wherein:

b) Threshold 2 is obtained by summing the threshold 1 and the offset value. Threshold 2 corresponds to a terminal of lower or special terminal type (such as a wearable terminal), or a terminal with a maximum transmit power of 20 dBm, that is, corresponds to terminal type 2.

b) If the terminal type is terminal type 2, the terminal selects the corresponding threshold 2, and when the RSRP measured by the terminal is greater than the threshold 2, it can initiate random access on the supplementary uplink carrier; otherwise, initiate random access on the common uplink carrier.

Step 7. The base station of the cell broadcasts a system message, and the system message includes 1 RSRP threshold and 1 offset value for initiating two-step random access; wherein:

b) Threshold 1 and the sum of the offset value obtains Threshold 2, and Threshold 2 corresponds to a lower or special terminal type terminal (such as a wearable terminal), or a terminal with a maximum transmit power of 20dBm, that is, corresponds to terminal type 2;

The embodiment of the present disclosure also provides a terminal. FIG. 4 is a schematic diagram of the composition structure of a terminal according to an embodiment of the present disclosure; as shown in FIG. 4 , the terminal includes: a first determination unit 21, a determination unit 22, and a second determination unit 23; wherein,

The first determining unit 21 is configured to determine a first parameter, a compensation parameter, a second parameter and a threshold value, where the first parameter represents RSRP; the compensation parameter is the maximum value among the first power value and 0 The first power value represents the difference between the maximum transmit power allowed by the cell and the equivalent transmit power of the terminal; the second parameter represents the RSRQ; the threshold value includes the first threshold value and the second threshold limit value;

The judging unit 22 is configured to judge whether the first condition is satisfied based on the first parameter, the compensation parameter and the first threshold value, and to judge according to the second parameter and the second threshold value Whether the second condition is met;

The second determining unit 23 is configured to determine whether the cell satisfies the cell access or camping condition according to the determination result of the determination unit 22 .

In some optional embodiments of the present disclosure, the judging unit 22 is configured to judge whether the difference between the first parameter, the compensation parameter, the first threshold value, and the first offset parameter is greater than zero ; and is further configured to determine whether the difference between the second parameter, the second threshold value and the second offset parameter is greater than zero.

In some optional embodiments of the present disclosure, the first determining unit 21 is configured to add and process the measured RSRP and the transmit gain or compensation value to obtain an equivalent RSRP.

Antenna gain or compensation value;

Transmission mode gain or compensation value.

In some optional embodiments of the present disclosure, the terminal further includes a first obtaining unit, configured to obtain at least two first threshold parameters sent by the network device before the first determining unit 21 determines the threshold value; The at least two first threshold parameters are used for cell selection; wherein, the at least two first threshold parameters correspond to different types of terminals; the at least two first threshold parameters include at least two corresponding to each type of terminal A threshold value, or a threshold value and an offset value corresponding to each type of terminal.

In some optional embodiments of the present disclosure, the first determining unit 21 is configured to select a threshold value corresponding to the type of the terminal from at least two threshold values included in the at least two first threshold parameters a first threshold value; or, according to a threshold value included in the at least two first threshold parameters and an offset value corresponding to each type of terminal, select an offset value corresponding to the type of the terminal, according to The first threshold value is obtained from the one threshold value and the selected offset value.

In some optional embodiments of the present disclosure, the terminal further includes a second obtaining unit, configured to obtain at least two second threshold parameters sent by the network device; the at least two second threshold parameters are used for selecting The uplink carrier initiates random access; or, obtain at least two third threshold parameters sent by the network device; the at least two third threshold parameters are used to initiate two-step random access on one or more uplink carriers;

Wherein, the at least two second threshold parameters or the at least two third threshold parameters correspond to different types of terminals; the at least two second threshold parameters or the at least two third threshold parameters include at least various types of At least two threshold values corresponding to the terminal of , or one threshold value and the offset value corresponding to each type of terminal.

In some optional embodiments of the present disclosure, the first determining unit 21 is further configured to determine a second threshold value;

The second determining unit 23 is further configured to determine whether to initiate random access on the supplementary uplink carrier according to the measured RSRP and the second threshold value.

In some optional embodiments of the present disclosure, the first determining unit 21 is further configured to determine a third threshold value;

The second determining unit 23 is further configured to determine whether to initiate two-step random access on the uplink carrier corresponding to the third threshold value according to the RSRP obtained by measurement and the third threshold value.

In some optional embodiments of the present disclosure, the second determining unit 23 is configured to determine to initiate random access on the supplementary uplink carrier when the measured RSRP is greater than the second threshold; When the obtained RSRP is not greater than the second threshold value, it is determined that random access is initiated on the common uplink carrier.

In some optional embodiments of the present disclosure, the second determining unit 23 is configured to, when the measured RSRP is greater than the third threshold value, determine that the uplink carrier corresponding to the third threshold value initiates Two-step random access; when the measured RSRP is not greater than the third threshold value, it is determined that four-step random access is initiated on the uplink carrier corresponding to the third threshold value.

In the embodiment of the present disclosure, the first determination unit 21, the determination unit 22, and the second determination unit 23 in the terminal can all be composed of a central processing unit (CPU, Central Processing Unit), a digital Signal processor (DSP, Digital Signal Processor), Microcontroller Unit (MCU, Microcontroller Unit) or Programmable Gate Array (FPGA, Field-Programmable Gate Array) implementation; the first acquisition unit and the second acquisition unit in the terminal , in practical applications, it can be implemented by a communication module (including: basic communication suite, operating system, communication module, standardized interface and protocol, etc.) and a transceiver antenna.

It should be noted that when the terminal provided in the above embodiment performs terminal access, only the division of the above program modules is used as an example for illustration. The internal structure of the terminal is divided into different program modules to complete all or part of the processing described above. In addition, the terminal and terminal access method embodiments provided in the above embodiments belong to the same concept, and the specific implementation process thereof is detailed in the method embodiments, which will not be repeated here.

An embodiment of the present disclosure further provides a terminal. FIG. 5 is a schematic diagram of a hardware structure of the terminal according to an embodiment of the present disclosure. As shown in FIG. 5 , the terminal includes a memory 32 , a processor 31 , and is stored in the memory 32 and can be processed during processing. A computer program running on the processor 31, when the processor 31 executes the program, the steps of the terminal access method described in the embodiments of the present disclosure are implemented.

Optionally, the terminal may further include one or more network interfaces 33 . The various components in the terminal are coupled together by a bus system 34 . It will be appreciated that the bus system 34 is used to implement the connection communication between these components. In addition to the data bus, the bus system 34 also includes a power bus, a control bus and a status signal bus. However, for the sake of clarity, the various buses are designated as bus system 34 in FIG. 5 .

It will be appreciated that the memory 32 may be either volatile memory or non-volatile memory, and may include both volatile and non-volatile memory. Among them, the non-volatile memory can be a read-only memory (ROM, Read Only Memory), a programmable read-only memory (PROM, Programmable Read-Only Memory), an erasable programmable read-only memory (EPROM, Erasable Programmable Read-only memory) Only Memory), Electrically Erasable Programmable Read-Only Memory (EEPROM, Electrically Erasable Programmable Read-Only Memory), Magnetic Random Access Memory (FRAM, Ferromagnetic Random Access Memory), Flash Memory (Flash Memory), Magnetic Surface Memory , CD-ROM, or CD-ROM (Compact Disc Read-Only Memory); magnetic surface memory can be disk memory or tape memory. Volatile memory may be Random Access Memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory Memory (DRAM, Dynamic Random Access Memory), Synchronous Dynamic Random Access Memory (SDRAM, Synchronous Dynamic Random Access Memory), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM, Double Data Rate Synchronous Dynamic Random Access Memory), Enhanced Type Synchronous Dynamic Random Access Memory (ESDRAM, Enhanced Synchronous Dynamic Random Access Memory), Synchronous Link Dynamic Random Access Memory (SLDRAM, SyncLink Dynamic Random Access Memory), Direct Memory Bus Random Access Memory (DRRAM, Direct Rambus Random Access Memory) ). The memory 32 described in the embodiments of the present disclosure is intended to include, but not be limited to, these and any other suitable types of memory.

The methods disclosed in the above embodiments of the present disclosure may be applied to the processor 31 or implemented by the processor 31 . The processor 31 may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above-mentioned method can be completed by a hardware integrated logic circuit in the processor 31 or an instruction in the form of software. The above-mentioned processor 31 may be a general-purpose processor, a DSP, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. The processor 31 may implement or execute the methods, steps, and logical block diagrams disclosed in the embodiments of the present disclosure. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the methods disclosed in combination with the embodiments of the present disclosure can be directly embodied as being executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium, and the storage medium is located in the memory 32, and the processor 31 reads the information in the memory 32 and completes the steps of the foregoing method in combination with its hardware.

In an exemplary embodiment, the terminal may be implemented by one or more Application Specific Integrated Circuit (ASIC, Application Specific Integrated Circuit), DSP, Programmable Logic Device (PLD, Programmable Logic Device), Complex Programmable Logic Device (CPLD, Complex) Programmable Logic Device), FPGA, general-purpose processor, controller, MCU, Microprocessor (Microprocessor), or other electronic component implementation for performing the aforementioned method.

In an exemplary embodiment, an embodiment of the present disclosure further provides a computer-readable storage medium, for example, a memory 32 including a computer program, and the computer program can be executed by the processor 31 of the terminal to complete the steps of the foregoing method. The computer-readable storage medium can be memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disk, or CD-ROM; it can also be various devices including one or any combination of the above memories.

The computer-readable storage medium provided by the embodiment of the present disclosure stores a computer program thereon, and when the program is executed by the processor, implements the steps of the terminal access method described in the embodiment of the present disclosure.

The methods disclosed in the several method embodiments provided in this application can be arbitrarily combined under the condition of no conflict to obtain new method embodiments.

The features disclosed in the several product embodiments provided in this application can be combined arbitrarily without conflict to obtain a new product embodiment.

The features disclosed in several method or device embodiments provided in this application can be combined arbitrarily without conflict to obtain new method embodiments or device embodiments.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored, or not implemented. In addition, the coupling, or direct coupling, or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be electrical, mechanical or other forms. of.

The unit described above as a separate component may or may not be physically separated, and the component displayed as a unit may or may not be a physical unit, that is, it may be located in one place or distributed to multiple network units; Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present disclosure may be all integrated into one processing unit, or each unit may be separately used as a unit, or two or more units may be integrated into one unit; the above integration The unit can be implemented either in the form of hardware or in the form of hardware plus software functional units.

Those of ordinary skill in the art can understand that all or part of the steps of implementing the above method embodiments can be completed by program instructions related to hardware, the aforementioned program can be stored in a computer-readable storage medium, and when the program is executed, execute It includes the steps of the above method embodiments; and the aforementioned storage medium includes: a removable storage device, a ROM, a RAM, a magnetic disk or an optical disk and other media that can store program codes.

Alternatively, if the above-mentioned integrated units of the present disclosure are implemented in the form of software functional modules and sold or used as independent products, they may also be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the embodiments of the present disclosure essentially or the parts that make contributions to the prior art can be embodied in the form of a software product, and the computer software product is stored in a storage medium and includes several instructions for A computer device (which may be a personal computer, a server, or a network device, etc.) is caused to execute all or part of the methods described in the various embodiments of the present disclosure. The aforementioned storage medium includes: a removable storage device, a ROM, a RAM, a magnetic disk or an optical disk and other mediums that can store program codes.

The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited to this. should be included within the scope of protection of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

A terminal access method, the method comprising:

The terminal determines a first parameter, a compensation parameter, a second parameter and a threshold value, where the first parameter represents the reference signal received power RSRP; the compensation parameter is the maximum value among the first power value and 0; the first parameter The power value represents the difference between the maximum transmit power allowed by the cell and the equivalent transmit power of the terminal; the second parameter represents the reference signal reception quality RSRQ; the threshold value includes a first threshold value and a second threshold value;

The terminal judges whether the first condition is met based on the first parameter, the compensation parameter and the first threshold value, and judges whether the second condition is met according to the second parameter and the second threshold value ; Determine whether the cell satisfies the cell access or camping conditions according to the judgment result.
The method according to claim 1, wherein the RSRP includes an RSRP measured by the terminal or an equivalent RSRP.
The method according to claim 1, wherein the terminal determines whether the first condition is satisfied based on the first parameter, the compensation parameter and the first threshold value, comprising:

The terminal determines whether the difference between the first parameter, the compensation parameter, the first threshold value, and the first offset parameter is greater than zero;

The determining whether the second condition is met according to the second parameter and the second threshold value includes:

The terminal determines whether the difference between the second parameter, the second threshold value and the second offset parameter is greater than zero.
The method of claim 1, wherein the equivalent transmit power comprises at least one of the following:

The maximum transmit power that can be achieved by a single antenna port of the terminal, or the maximum transmit power corresponding to the transmit power level of a single antenna port;

The maximum transmit power that can be reached by one radio frequency channel or one power amplifier of the terminal, or the maximum transmit power corresponding to the transmit power level of one radio frequency channel or one power amplifier;

The maximum transmit power that can be achieved when the terminal is in the idle state and/or the deactivated state, or the maximum transmit power corresponding to the transmit power level when the terminal is in the idle state and/or the deactivated state;

The maximum transmit power that can be achieved in the process of cell access or cell camping initiated by the terminal, or the maximum transmit power corresponding to the transmit power level in the process of cell access or cell camping initiated by the terminal;

The maximum transmit power corresponding to the transmit power level of the terminal;

The sum of the maximum transmit power achievable by the single antenna port of the terminal and the transmit gain or compensation value, or the sum of the maximum transmit power and transmit gain or compensation value corresponding to the transmit power level of the single antenna port;

The sum of the maximum transmit power that can be reached by a radio frequency channel or a power amplifier of the terminal and the transmit gain or compensation value, or the sum of the maximum transmit power corresponding to the transmit power level of a radio frequency channel or a power amplifier and the transmit gain or compensation value;

The sum of the maximum transmit power attainable by the terminal in the idle state and/or the deactivated state and the transmit gain or compensation value, or the maximum transmit power and transmit gain or compensation value corresponding to the transmit power level when the terminal is in the idle state and/or in the deactivated state the sum of the values;

The sum of the maximum transmit power and transmit gain or compensation value that can be achieved during the terminal-initiated cell access or cell camping process, or the maximum transmit power and transmit gain corresponding to the transmit power level during the terminal-initiated cell access or cell camping process or the sum of compensation values;

The sum of the maximum transmit power corresponding to the transmit power level of the terminal and the transmit gain or compensation value.
The method according to claim 2, wherein the terminal obtains an equivalent RSRP, comprising:

The terminal adds and processes the measured RSRP and the transmit gain or compensation value to obtain an equivalent RSRP.
The method according to claim 4 or 5, wherein the transmit gain or compensation value includes at least one of the following:

Repeated transmission of gain or compensation values;

Antenna gain or compensation value;

Transmission mode gain or compensation value.
The method according to claim 1, wherein before the terminal determines the threshold value, the method further comprises:

obtaining, by the terminal, at least two first threshold parameters sent by the network device; the at least two first threshold parameters are used for cell selection;

Wherein, the at least two first threshold parameters correspond to different types of terminals; the at least two first threshold parameters include at least two threshold values corresponding to each type of terminal, or one threshold value and each type of terminal The offset value corresponding to the terminal.
The method according to claim 7, wherein the terminal determines the first threshold value, comprising:

selecting, by the terminal, a first threshold value corresponding to the type of the terminal from at least two threshold values included in the at least two first threshold parameters; or,

The terminal selects an offset value corresponding to the type of the terminal according to a threshold value included in the at least two first threshold parameters and an offset value corresponding to each type of terminal, and according to the one threshold value and the selected offset value to obtain the first threshold value.
The method of claim 1, wherein the method further comprises:

The terminal obtains at least two second threshold parameters sent by the network device; the at least two second threshold parameters are used to select to initiate random access on the supplementary uplink carrier; or,

obtaining, by the terminal, at least two third threshold parameters sent by the network device; the at least two third threshold parameters are used to initiate two-step random access on one or more uplink carriers;

Wherein, the at least two second threshold parameters or the at least two third threshold parameters correspond to different types of terminals; the at least two second threshold parameters or the at least two third threshold parameters include at least various types of At least two threshold values corresponding to the terminal of , or one threshold value and the offset value corresponding to each type of terminal.
The method of claim 9, wherein the method further comprises:

The terminal determines a second threshold value, and determines whether to initiate random access on the supplementary uplink carrier according to the measured RSRP and the second threshold value.
The method of claim 9, wherein the method further comprises:

The terminal determines a third threshold value, and determines whether to initiate two-step random access on the uplink carrier corresponding to the third threshold value according to the measured RSRP and the third threshold value.
The method according to claim 10, wherein the determining whether to initiate random access on the supplementary uplink carrier according to the measured RSRP and the second threshold value comprises:

When the measured RSRP is greater than the second threshold value, determine to initiate random access on the supplementary uplink carrier;

When the measured RSRP is not greater than the second threshold value, it is determined that random access is initiated on the common uplink carrier.
The method according to claim 11, wherein determining whether to initiate a two-step random access on an uplink carrier corresponding to the third threshold value according to the measured RSRP and the third threshold value, comprising:

When the measured RSRP is greater than the third threshold value, determine that two-step random access is initiated on the uplink carrier corresponding to the third threshold value;

When the measured RSRP is not greater than the third threshold value, it is determined that four-step random access is initiated on the uplink carrier corresponding to the third threshold value.
The method according to claim 10, wherein the determining, by the terminal, the second threshold value comprises: the terminal selecting the terminal from at least two threshold values included in the at least two second threshold parameters and the terminal The second threshold value corresponding to the type of ; or,

The terminal selects an offset value corresponding to the type of the terminal according to a threshold value included in the at least two second threshold parameters and an offset value corresponding to each type of terminal, and according to the one threshold value and the selected offset value to obtain the second threshold value.
The method according to claim 11, wherein the determining, by the terminal, the third threshold value comprises: the terminal selecting the terminal from at least two threshold values included in the at least two third threshold parameters The third threshold value corresponding to the type of ; or,

The terminal selects an offset value corresponding to the type of the terminal according to a threshold value included in the at least two third threshold parameters and an offset value corresponding to each type of terminal, and selects an offset value corresponding to the type of the terminal according to the one threshold value. and the selected offset value to obtain the third threshold value.
A terminal, the terminal includes: a first determination unit, a judgment unit and a second determination unit; wherein,

The first determining unit is configured to determine a first parameter, a compensation parameter, a second parameter and a threshold value, where the first parameter represents RSRP; the compensation parameter is the maximum value among the first power value and 0; The first power value represents the difference between the maximum transmit power allowed by the cell and the equivalent transmit power of the terminal; the second parameter represents the RSRQ; the threshold value includes a first threshold value and a second threshold value;

The judging unit is configured to judge whether a first condition is satisfied based on the first parameter, the compensation parameter and the first threshold value, and to judge whether a first condition is satisfied according to the second parameter and the second threshold value meet the second condition;

The second determination unit is configured to determine whether the cell satisfies the cell access or camping condition according to the determination result of the determination unit.
The terminal according to claim 16, wherein the RSRP comprises an RSRP measured by the terminal or an equivalent RSRP.
The terminal according to claim 16, wherein the judging unit is configured to judge whether the difference between the first parameter, the compensation parameter, the first threshold value and the first offset parameter is greater than zero; It is also configured to judge whether the difference between the second parameter, the second threshold value and the second offset parameter is greater than zero.
The terminal of claim 16, wherein the equivalent transmit power comprises at least one of the following:

The maximum transmit power that can be achieved by a single antenna port of the terminal, or the maximum transmit power corresponding to the transmit power level of a single antenna port;

The maximum transmit power that can be reached by a radio frequency channel or a power amplifier of the terminal, or the maximum transmit power corresponding to the transmit power level of a radio frequency channel or a power amplifier;

The maximum transmit power that can be achieved when the terminal is in the idle state and/or the deactivated state, or the maximum transmit power corresponding to the transmit power level when the terminal is in the idle state and/or the deactivated state;

The maximum transmit power that can be achieved in the process of cell access or cell camping initiated by the terminal, or the maximum transmit power corresponding to the transmit power level in the process of cell access or cell camping initiated by the terminal;

The maximum transmit power corresponding to the transmit power level of the terminal;

The sum of the maximum transmit power achievable by the single antenna port of the terminal and the transmit gain or compensation value, or the sum of the maximum transmit power and transmit gain or compensation value corresponding to the transmit power level of the single antenna port;

The sum of the maximum transmit power that can be reached by a radio frequency channel or a power amplifier of the terminal and the transmit gain or compensation value, or the sum of the maximum transmit power corresponding to the transmit power level of a radio frequency channel or a power amplifier and the transmit gain or compensation value;

The sum of the maximum transmit power attainable by the terminal in the idle state and/or the deactivated state and the transmit gain or compensation value, or the maximum transmit power and transmit gain or compensation value corresponding to the transmit power level when the terminal is in the idle state and/or in the deactivated state the sum of the values;

The sum of the maximum transmit power and transmit gain or compensation value that can be achieved during the terminal-initiated cell access or cell camping process, or the maximum transmit power and transmit gain corresponding to the transmit power level during the terminal-initiated cell access or cell camping process or the sum of compensation values;

The sum of the maximum transmit power corresponding to the transmit power level of the terminal and the transmit gain or compensation value.
The terminal according to claim 17, wherein the first determining unit is configured to add and process the measured RSRP and a transmit gain or compensation value to obtain an equivalent RSRP.
The terminal according to claim 19 or 20, wherein the transmit gain or compensation value includes at least one of the following:

Repeated transmission of gain or compensation values;

Antenna gain or compensation value;

Transmission mode gain or compensation value.
The terminal according to claim 16, wherein the terminal further comprises a first obtaining unit, configured to obtain at least two first threshold parameters sent by the network device before the first determining unit determines the threshold value; the At least two first threshold parameters are used for cell selection; wherein, the at least two first threshold parameters correspond to different types of terminals; the at least two first threshold parameters include at least two thresholds corresponding to each type of terminal A limit value, or a threshold value and an offset value corresponding to each type of terminal.
The terminal according to claim 22, wherein the first determining unit is configured to select a first threshold value corresponding to the type of the terminal from at least two threshold values included in the at least two first threshold parameters a threshold value; or, according to a threshold value included in the at least two first threshold parameters and the offset value corresponding to each type of terminal, select the offset value corresponding to the type of the terminal, and select the offset value corresponding to the type of the terminal according to the The first threshold value is obtained from the one threshold value and the selected offset value.
The terminal according to claim 16, wherein the terminal further comprises a second obtaining unit, configured to obtain at least two second threshold parameters sent by the network device; the at least two second threshold parameters are used for selecting The uplink carrier initiates random access; or, obtain at least two third threshold parameters sent by the network device; the at least two third threshold parameters are used to initiate two-step random access on one or more uplink carriers;

Wherein, the at least two second threshold parameters or the at least two third threshold parameters correspond to different types of terminals; the at least two second threshold parameters or the at least two third threshold parameters include at least various types of At least two threshold values corresponding to the terminal of , or one threshold value and the offset value corresponding to each type of terminal.
The terminal according to claim 24, wherein the first determining unit is further configured to determine a second threshold value;

The second determining unit is further configured to determine whether to initiate random access on the supplementary uplink carrier according to the measured RSRP and the second threshold.
The terminal according to claim 24, wherein the first determining unit is further configured to determine a third threshold value;

The second determining unit is further configured to determine whether to initiate two-step random access on the uplink carrier corresponding to the third threshold value according to the RSRP obtained by measurement and the third threshold value.
The terminal according to claim 25, wherein the second determining unit is configured to determine to initiate random access on the supplementary uplink carrier when the measured RSRP is greater than the second threshold; When the RSRP is not greater than the second threshold value, it is determined to initiate random access on the common uplink carrier.
The terminal according to claim 26, wherein the second determining unit is configured to, when the measured RSRP is greater than the third threshold value, determine that the uplink carrier corresponding to the third threshold value initiates two step random access; when the measured RSRP is not greater than the third threshold value, it is determined to initiate four step random access on the uplink carrier corresponding to the third threshold value.
The terminal according to claim 25, wherein the first determining unit is configured to select a second threshold value corresponding to the type of the terminal from at least two threshold values included in the at least two second threshold parameters a threshold value; or, according to a threshold value included in the at least two second threshold parameters and an offset value corresponding to each type of terminal, select an offset value corresponding to the type of the terminal, according to the one The second threshold value is obtained from the threshold value and the selected offset value.
The terminal according to claim 26, wherein the first determining unit is configured to select a third threshold value corresponding to the type of the terminal from at least two threshold values included in the at least two third threshold parameters a threshold value; or, according to a threshold value included in the at least two third threshold parameters and an offset value corresponding to each type of terminal, select an offset value corresponding to the type of the terminal, according to the one The third threshold value is obtained from the threshold value and the selected offset value.
A computer-readable storage medium having a computer program stored thereon, the program implementing the steps of the method of any one of claims 1 to 15 when the program is executed by a processor.
A terminal, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, when the processor executes the program, the steps of the method according to any one of claims 1 to 15 are implemented.