CN115568033A - Method and device for determining coverage level of terminal rach in NBIOT system and terminal - Google Patents
Method and device for determining coverage level of terminal rach in NBIOT system and terminal Download PDFInfo
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Abstract
The disclosure relates to a method and a device for determining a rach coverage level of a terminal in an NBIOT system and the terminal. The method comprises the following steps: sending leading information to target equipment according to the current rach coverage level; the rach coverage level is related to reference signal received power; when the sending of the preamble information fails, determining whether the current rach coverage grade meets a grade adjustment condition; and adjusting the current rach coverage level to a target rach coverage level if the current rach coverage level meets the level adjustment condition. The method can adjust the reach coverage grade in time when the channel quality changes in the reach process, shorten the access time and improve the access efficiency.
Description
Technical Field
The disclosure relates to the technical field of internet of things, in particular to a method and a device for determining a rach coverage level of a terminal in an NBIOT system and the terminal.
Background
In a Narrow Band Internet of Things (NBIOT) system, in a Random Access Channel (RACH) process, coverage class is closely related to signal quality, so that the terminal is very important to determine the coverage class.
In the related art, in the RACH process, a coverage class is determined first, but then if the channel quality changes, it is necessary to wait until the number of times of Preamble (Preamble) information transmission failure reaches the maximum number of transmission times corresponding to the current coverage class, and then re-determine other coverage classes, thereby wasting access time and resulting in low access efficiency of the channel.
Disclosure of Invention
In order to overcome the problems in the related art, the disclosure provides a method and a device for determining a rach coverage level of a terminal in an NBIOT system, and the terminal.
According to a first aspect of the embodiments of the present disclosure, a method for determining a coverage level of a terminal rach in an NBIOT system is provided, where the method is applied to the NBIOT system and includes:
sending leading information to target equipment according to the current rach coverage level; the rach coverage level is related to reference signal received power;
when the sending of the preamble information fails, determining whether the current rach coverage grade meets a grade adjustment condition;
and adjusting the current rach coverage level to a target rach coverage level if the current rach coverage level meets the level adjustment condition.
In some embodiments, the determining whether the current rach coverage level meets a level adjustment condition when the preamble information transmission fails includes:
when the preamble information fails to be sent, determining the latest rach coverage grade based on the current reference signal receiving power;
determining that the current rach coverage level satisfies the level adjustment condition if the latest rach coverage level is different from the current rach coverage level.
In some embodiments, the adjusting the current rach coverage level to a target rach coverage level comprises:
and determining the latest rach coverage level as the target rach coverage level, and adjusting the current rach coverage level to the latest rach coverage level.
In some embodiments, after determining the latest rach coverage level based on the current reference signal received power when the preamble information transmission fails, the method further comprises:
determining whether the sending times of the preamble information reach a preset threshold value or not under the condition that the latest rach coverage grade is the same as the current rach coverage grade;
reducing the current rach coverage level under the condition that the sending times of the preamble information reach the preset threshold value;
and sending the preamble information to the target equipment based on the reduced rach coverage level.
In some embodiments, the preset threshold is a maximum number of transmissions corresponding to the current rach coverage level.
In some embodiments, the sending the preamble information to the target device according to the current rach coverage level includes:
determining the maximum sending times corresponding to the current rach coverage grade;
and when the sending times of the leading information do not reach the maximum sending times corresponding to the current rach coverage grade, sending the leading information to the target equipment.
In some embodiments, after adjusting the current rach coverage level to a target rach coverage level if the current rach coverage level satisfies the level adjustment condition, the method further comprises:
and sending the leading information to the target equipment according to the target rach coverage grade.
According to a second aspect of the embodiments of the present disclosure, there is provided an apparatus for determining a terminal rach coverage level in an NBIOT system, where the apparatus is applied to the NBIOT system, and the apparatus includes:
the information sending module is configured to send the preamble information to the target equipment according to the current rach coverage grade; the rach coverage level is related to reference signal received power;
a judging module configured to determine whether the current rach coverage level meets a level adjustment condition when the preamble information transmission fails;
a rank adjustment module configured to adjust the current rach coverage rank to a target rach coverage rank if the current rach coverage rank satisfies the rank adjustment condition.
In some embodiments, the determination module is configured to:
when the preamble information fails to be sent, determining the latest rach coverage grade based on the current reference signal receiving power;
determining that the current rach coverage level satisfies the level adjustment condition if the latest rach coverage level is different from the current rach coverage level.
In some embodiments, the rank adjustment module is configured to determine the latest rach coverage rank as the target rach coverage rank, and adjust the current rach coverage rank to the latest rach coverage rank.
In some embodiments, the apparatus further comprises:
the judging module is further configured to determine whether the sending times of the preamble information reaches a preset threshold value under the condition that the latest rach coverage level is the same as the current rach coverage level;
the level adjustment module is further configured to reduce the current rach coverage level when the number of sending times of the preamble information reaches the preset threshold;
the information sending module is further configured to send the preamble information to the target device based on the reduced rach coverage level.
In some embodiments, the preset threshold is a maximum number of transmissions corresponding to the current rach coverage level.
In some embodiments, the information sending module is configured to:
determining the maximum sending times corresponding to the current rach coverage grade;
and when the sending times of the preamble information do not reach the maximum sending times corresponding to the current rach coverage grade, sending the preamble information to the target equipment.
In some embodiments, the information sending module is further configured to send the preamble information to the target device according to the target rach coverage level.
According to a third aspect of the embodiments of the present disclosure, there is provided a terminal, including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to execute the method for determining the coverage level of the terminal rach in the NBIOT system according to any one of the first aspects of the embodiments of the present disclosure.
According to a fourth aspect of the embodiments of the present disclosure, there is provided a non-transitory computer-readable storage medium, wherein instructions of the storage medium, when executed by a processor of a terminal, enable the terminal to perform the method for determining a terminal rach coverage level in an NBIOT system according to any one of the first aspect of the embodiments of the present disclosure.
By adopting the method disclosed by the invention, the following beneficial effects are achieved:
according to the method for determining the coverage grade of the terminal rach in the NBIOT system, the preamble information is sent to the target equipment according to the current coverage grade of the rach; when the preamble information is failed to be sent, determining whether the current rach coverage grade meets a grade adjustment condition; when the channel quality is changed in the rach process, the method can directly adjust the rach coverage grade only by determining that the current rach coverage grade meets the grade adjustment condition, and the number of times of failure in sending the preamble information does not need to reach the maximum sending number of times corresponding to the current rach coverage grade, so that the access time is saved, and the access efficiency of the channel is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a flowchart illustrating a method for determining a rach coverage level of a terminal in an NBIOT system according to an exemplary embodiment;
fig. 2 is a flowchart illustrating a method for determining a rach coverage level of a terminal in an NBIOT system according to an exemplary embodiment;
fig. 3 is a flowchart illustrating a method for determining a coverage level of a terminal rach in an NBIOT system in accordance with an exemplary embodiment;
FIG. 4 is a flow diagram illustrating a method for determining a terminal rach coverage level in an NBIOT system in accordance with an exemplary embodiment;
fig. 5 is a block diagram illustrating an apparatus of a terminal rach coverage level determination apparatus in an NBIOT system according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. The following description refers to the accompanying drawings in which the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
The method for determining the coverage grade of the terminal rach in the NBIOT system is applied to the NBIOT system, has the characteristics of wide coverage, large connection, low power consumption and low cost, and only consumes the bandwidth of 180KHz (kilohertz). The NBIOT system relates to a terminal, a base station, and other devices, and the embodiment of the present disclosure is described with respect to a method for determining a coverage level of a terminal side related to the NBIOT system, where the terminal may be a smart phone, a tablet computer, a notebook computer, a desktop computer, a bluetooth sound, a vehicle-mounted terminal, an intelligent home device, and other devices.
Fig. 1 is a flowchart illustrating a method for determining a rach coverage level of a terminal in an NBIOT system according to an exemplary embodiment, where the method is performed by the terminal, and referring to fig. 1, the method includes the following steps:
step S101, according to the current rach coverage grade, sending preamble information to the target device, wherein the rach coverage grade is related to the reference signal received power.
In the embodiment of the present disclosure, in the RACH procedure, a current RACH coverage level is determined according to a current Reference Signal Receiving Power (RSRP). Where reference signal received power refers to a linear average of received power (in watts) over the resource elements carrying the reference signal over the considered measurement frequency bandwidth. The size of the rach coverage level indicates the signal quality of the terminal, the larger the rach coverage level, the better the signal quality, and the smaller the rach coverage level, the worse the signal quality. The method includes that the maximum sending times of the preamble information sent to target equipment are preset under different rach coverage levels, when the preamble information is sent, the sending times of the preamble information cannot exceed a corresponding preset threshold under the current rach coverage level, the preset threshold is the maximum sending times of the preamble information corresponding to the current rach coverage level, and the target equipment can be a base station or other equipment. The Preamble information is actual content sent by the terminal in the physical random access channel, and includes a Cyclic Prefix (CP) and a Sequence (Sequence), and the Preamble information may also be referred to as a Preamble code.
And step S102, when the transmission of the preamble information fails, determining whether the current rach coverage grade meets a grade adjustment condition.
In the process of sending the preamble information, the preamble information is sent at least once according to the current RACH coverage grade, and when the preamble information is successfully sent, the channel access is considered to be completed, namely the RACH process is considered to be completed; when the transmission of the preamble information fails, which may be caused by the transmission change of the channel quality, the method determines whether the current rach coverage level meets the level adjustment condition, and then executes a response step according to whether the current rach coverage level meets the level adjustment condition. Wherein, the rank adjustment condition means that the current rach coverage rank does not match the current channel quality.
In step S103, when the current rach coverage level satisfies the level adjustment condition, the current rach coverage level is adjusted to the target rach coverage level.
And in the case that the current rach coverage level meets the level adjustment condition, directly adjusting the current rach coverage level to a target rach coverage level, wherein the target rach coverage level is different from the current rach coverage level, and the target rach coverage level is determined based on the current channel quality.
According to the method for determining the coverage grade of the terminal rach in the NBIOT system, the preamble information is sent to the target equipment according to the current coverage grade of the rach; when the preamble information is failed to be sent, determining whether the current rach coverage grade meets a grade adjustment condition; when the channel quality is changed in the rach process, the rach coverage grade can be directly adjusted as long as the current rach coverage grade is determined to meet the level adjustment condition, and the number of times of failure in sending the preamble information does not need to reach the maximum sending number of times corresponding to the current rach coverage grade, so that the access time is saved, and the access efficiency of the channel is improved.
Fig. 2 is a flowchart illustrating a method for determining a rach coverage level of a terminal in an NBIOT system, according to an exemplary embodiment, where the method is performed by the terminal, and referring to fig. 2, the method includes the following steps:
in step S201, a current rach coverage level is determined based on the reference signal received power.
Where reference signal received power refers to a linear average of received power (in watts) over the resource elements carrying the reference signal over the considered measurement frequency bandwidth. The size of the rach coverage level indicates the signal quality of the terminal, the larger the rach coverage level, the better the signal quality, and the smaller the rach coverage level, the worse the signal quality.
In some embodiments, taking the example that the rach coverage class includes a first class, a second class and a third class, when the reference signal received power is less than a first preset power, the current rach coverage class is determined to be the first class, when the reference signal received power is greater than or equal to the first preset power and less than a second preset power, the current rach coverage class is determined to be the second class, and when the reference signal received power is greater than or equal to the second preset power, the current rach coverage class is determined to be the third class. Wherein, one rach coverage class corresponds to a certain power range, and there is no overlap in the power ranges corresponding to different rach coverage classes.
It should be noted that, in the embodiment of the present disclosure, the above-mentioned manner of determining the rach coverage level is merely used as an example for description, and in other embodiments, other manners may also be used to determine the current rach coverage level.
And step S202, sending the preamble information to the target equipment according to the current rach coverage level.
In the embodiment of the present disclosure, the maximum sending times of the preamble information sent to the target device under different rach coverage levels are preset, and when sending the preamble information, the sending times of the preamble information cannot exceed a preset threshold corresponding to the current rach coverage level, where the preset threshold is the maximum sending times of the preamble information corresponding to the current rach coverage level, and the target device may be a base station or other devices. The preamble information is the actual content sent by the terminal in the physical random access channel.
In some embodiments, after the current rach coverage level is determined, preamble information to be sent is determined, and the specific implementation of determining the preamble information is not limited in the embodiments of the present disclosure.
In some embodiments, before sending the preamble information, it is determined whether the sending times of the preamble information reaches the maximum sending times corresponding to the current rach coverage level, if the sending times reaches the maximum sending times, the sending of the preamble information is stopped, and if the sending times does not reach the maximum sending times, the sending of the preamble information is continued.
In some embodiments, after transmitting the preamble information to the target device, if the preamble information transmission is successful, the RACH procedure is completed, and if the preamble information transmission is failed, the number of information transmission failures is increased by 1, and step S203 is performed.
And step 203, when the preamble information fails to be transmitted, determining the latest rach coverage level based on the current reference signal received power.
The embodiment of determining the latest rach coverage level in step S203 is the same as the embodiment of step S201, and is not repeated herein. If the latest rach coverage level is different from the current rach coverage level, step S204 is executed, and if the latest rach coverage level is the same as the current rach coverage level, step S206 is executed.
In step S204, when the latest rach coverage level is different from the current rach coverage level, it is determined that the current rach coverage level satisfies the level adjustment condition, and the current rach coverage level is adjusted to the latest rach coverage level.
In the embodiment of the present disclosure, if the latest rach coverage level is different from the current rach coverage level, it indicates that the current rach coverage level does not match the current signal quality, and therefore it is determined that the current rach coverage level meets the level adjustment condition. Wherein, since the latest rach coverage level is determined based on the current reference information received power, the latest rach coverage level is determined as the target rach coverage level, so that the current rach coverage level is adjusted to the latest rach coverage level.
And step S205, sending the preamble information to the target equipment according to the target rach coverage grade.
In the embodiment of the present disclosure, the implementation of sending the preamble information to the target device according to the target rach coverage level is the same as the implementation of step S202, and is not described herein again.
In step S206, it is determined whether the number of times of sending the preamble information reaches a preset threshold value, in a case where the latest rach coverage level is the same as the current rach coverage level.
In the embodiment of the present disclosure, if the latest rach coverage level is the same as the current rach coverage level, it indicates that there is no need to adjust the rach coverage level. However, at this time, because the transmission of the preamble information fails, it is also necessary to determine whether the number of times of transmitting the preamble information reaches a preset threshold, if the number of times of transmitting the preamble information does not reach the preset threshold, it indicates that the transmission of the preamble information is not completed in the current RACH coverage level, and it is necessary to continue to transmit the preamble information, step S202 is executed again, and if the number of times of transmitting the preamble information reaches the preset threshold, it indicates that the transmission of the preamble information is completed but the RACH procedure is not completed in the current RACH coverage level, and then step S207 is executed to complete the RACH procedure.
And step S207, reducing the current rach coverage level when the sending frequency of the preamble information reaches a preset threshold value, and sending the preamble information to the target equipment based on the reduced rach coverage level.
The step of reducing the current rach coverage level refers to reducing the current rach coverage level by one level on the basis of the current rach coverage level, for example, reducing the current rach coverage level to a second coverage level if the current rach coverage level is a third level. The implementation of sending the preamble information to the target device based on the reduced rach coverage level is the same as the implementation of step S202, and is not described herein again.
According to the method for determining the coverage grade of the terminal rach in the NBIOT system, the preamble information is sent to the target equipment according to the current coverage grade of the rach; when the transmission of the leading information fails and the frequency of the transmission failure of the information does not reach a preset threshold value, determining whether the current rach coverage grade meets a grade adjustment condition; when the channel quality is changed in the rach process, the method can directly adjust the rach coverage grade only by determining that the current rach coverage grade meets the grade adjustment condition, and the number of times of failure in sending the preamble information does not need to reach the maximum sending number of times corresponding to the current rach coverage grade, so that the access time is saved, and the access efficiency of the channel is improved.
In addition, in some embodiments, the flowchart of the method for determining the coverage level of the terminal rach in the NBIOT system may also be represented as the flowchart shown in fig. 3, with reference to fig. 3, where the method includes the following steps:
step S301 starts the RACH procedure.
And step S302, determining the rach coverage level according to the RSRP.
Step S303, the preamble information is transmitted.
Step S304, it is determined whether the preamble information is successfully transmitted.
If the transmission is successful, step S305 is performed, and if the transmission is failed, step S302 is performed again.
Step S305, the RACH procedure is completed.
The implementation of steps S301 to S305 is the same as the implementation shown in fig. 2, and is not repeated herein.
In some embodiments, the flowchart of the method for determining the coverage level of the terminal rach in the NBIOT system may also be represented as the flowchart shown in fig. 4, and referring to fig. 4, the method includes the following steps:
step S401 starts the RACH procedure.
Step S402, determining the rach coverage level according to the RSRP.
Step S403, determining whether the number of times of transmitting the preamble information reaches the maximum number of times of transmission corresponding to the rach coverage level.
If the maximum number of transmission times is reached, step S409 is performed, and if the maximum number of transmission times is not reached, step S404 is performed.
Step S404, preamble information is transmitted.
Step S405, it is determined whether the preamble information is successfully transmitted.
If the transmission is successful, step S409 is performed, and if the transmission is failed, step S406 is performed.
Step S406, determining whether the rach coverage level needs to be reduced according to the RSRP.
Step S407 is executed if it is determined that the rach coverage level needs not to be lowered, and step S408 is executed if the rach coverage level needs to be lowered.
Step S407 determines whether the number of times of transmission failure of the preamble information reaches the maximum number of times of transmission corresponding to the rach coverage level.
If the maximum number of transmission times is reached, step S408 is executed, and if the maximum number of transmission times is not reached, step S403 is executed.
In step S408, the rach coverage level is lowered, and step S403 is executed.
Step S409, the RACH procedure is completed.
The implementation of steps S401 to S409 is the same as that shown in fig. 2, and is not repeated herein.
Fig. 5 is a block diagram of an apparatus for determining a coverage level of a terminal rach in an NBIOT system according to an exemplary embodiment, where the apparatus includes:
an information sending module 501, configured to send preamble information to a target device according to a current rach coverage level; the rach coverage level is related to the reference signal received power;
a judging module 502 configured to determine whether the current rach coverage level meets a level adjustment condition when the preamble information transmission fails;
and a level adjusting module 503 configured to adjust the current rach coverage level to the target rach coverage level if the current rach coverage level satisfies the level adjusting condition.
The device for determining the coverage level of the terminal rach in the NBIOT system, provided by the embodiment of the disclosure, sends the preamble information to the target device according to the current coverage level of the rach; when the preamble information is failed to be sent and the number of times of information sending failure does not reach a preset threshold value, determining whether the current rach coverage grade meets a grade adjustment condition or not; when the channel quality is changed in the rach process, the rach coverage grade can be directly adjusted as long as the current rach coverage grade is determined to meet the level adjustment condition, and the number of times of failure in sending the preamble information does not need to reach the maximum sending number of times corresponding to the current rach coverage grade, so that the access time is saved, and the access efficiency of the channel is improved.
In some embodiments, the determining module 502 is configured to:
when the preamble information fails to be sent, determining the latest rach coverage grade based on the current reference signal received power;
and determining that the current rach coverage level meets the level adjustment condition when the latest rach coverage level is different from the current rach coverage level.
In some embodiments, the level adjustment module 503 is configured to determine the latest rach coverage level as the target rach coverage level, and adjust the current rach coverage level to the latest rach coverage level.
In some embodiments, the apparatus further comprises:
the determining module 502 is further configured to determine whether the sending times of the preamble information reaches a preset threshold value under the condition that the latest rach coverage level is the same as the current rach coverage level;
the level adjustment module 503 is further configured to reduce the current rach coverage level when the number of sending times of the preamble information reaches a preset threshold;
the information sending module 501 is further configured to send the preamble information to the target device based on the reduced rach coverage level.
In some embodiments, the preset threshold is a maximum number of transmissions corresponding to the current rach coverage level.
In some embodiments, the information sending module 501 is configured to:
determining the maximum sending times corresponding to the current rach coverage grade;
and when the sending times of the preamble information do not reach the maximum sending times corresponding to the current rach coverage level, sending the preamble information to the target equipment.
In some embodiments, the information sending module 501 is further configured to send the preamble information to the target device according to the target rach coverage level.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
An embodiment of the present disclosure further provides a terminal, including: a processor; a memory for storing processor-executable instructions; wherein, the processor is configured to execute the method for determining the coverage level of the terminal rach in the NBIOT system in the above embodiment.
The embodiment of the present disclosure further provides a non-transitory computer-readable storage medium, where instructions in the storage medium, when executed by a processor of a terminal, enable the terminal to execute the method for determining a terminal rach coverage level in an NBIOT system in the foregoing embodiment.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (10)
1. A method for determining a terminal rach coverage level in an NBIOT system is applied to the NBIOT system, and comprises the following steps:
sending leading information to target equipment according to the current rach coverage level; the rach coverage level is related to reference signal received power;
when the sending of the preamble information fails, determining whether the current rach coverage grade meets a grade adjustment condition;
and under the condition that the current rach coverage level meets the level adjustment condition, adjusting the current rach coverage level to a target rach coverage level.
2. The method for determining the coverage level of the terminal rach in the NBIOT system according to claim 1, wherein the determining whether the current coverage level of the rach meets a level adjustment condition when the preamble information transmission fails comprises:
when the preamble information fails to be sent, determining the latest rach coverage grade based on the current reference signal receiving power;
determining that the current rach coverage level satisfies the level adjustment condition if the latest rach coverage level is different from the current rach coverage level.
3. The method for determining the coverage level of the terminal rach in the NBIOT system according to claim 2, wherein the adjusting the current coverage level of the rach to the target coverage level comprises:
and determining the latest rach coverage level as the target rach coverage level, and adjusting the current rach coverage level to the latest rach coverage level.
4. The method for determining the coverage level of the terminal rach in the NBIOT system of claim 2, wherein after determining the latest coverage level of the rach based on the current reference signal received power when the preamble information transmission fails, the method further comprises:
determining whether the sending times of the preamble information reach a preset threshold value or not under the condition that the latest rach coverage grade is the same as the current rach coverage grade;
reducing the coverage level of the current rach under the condition that the sending times of the preamble information reach a preset threshold value;
and sending the preamble information to the target equipment based on the reduced rach coverage level.
5. The method for determining the coverage level of the terminal rach in the NBIOT system according to claim 4, wherein the preset threshold is a maximum number of transmissions corresponding to the current coverage level of the rach.
6. The method for determining the reach coverage level of the terminal in the NBIOT system according to claim 1, wherein the sending the preamble information to the target device according to the current reach coverage level comprises:
determining the maximum sending times corresponding to the current rach coverage grade;
and when the sending times of the leading information do not reach the maximum sending times corresponding to the current rach coverage grade, sending the leading information to the target equipment.
7. The method for determining the coverage level of the terminal rach in the NBIOT system according to claim 1, wherein after the adjusting the current rach coverage level to the target rach coverage level if the current rach coverage level meets the level adjustment condition, the method further comprises:
and sending the leading information to the target equipment according to the target rach coverage grade.
8. An apparatus for determining a coverage level of a terminal rach in an NBIOT system, the apparatus being applied to the NBIOT system and comprising:
the information sending module is configured to send the leading information to the target equipment according to the current rach coverage grade; the rach coverage level is related to reference signal received power;
a judging module configured to determine whether the current rach coverage level meets a level adjustment condition when the preamble information transmission fails;
a rank adjustment module configured to adjust the current rach coverage rank to a target rach coverage rank if the current rach coverage rank satisfies the rank adjustment condition.
9. A terminal, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to perform the method for determining a terminal rach coverage level in an NBIOT system as claimed in any one of claims 1-7.
10. A non-transitory computer-readable storage medium, wherein instructions in the storage medium, when executed by a processor of a terminal, enable the terminal to perform the method for determining a terminal rach coverage level in a NBIOT system according to any one of claims 1-7.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105637969A (en) * | 2013-10-14 | 2016-06-01 | 株式会社Kt | Method for transmitting and receiving random access preamble and device therefor |
| US20180139776A1 (en) * | 2016-11-16 | 2018-05-17 | Institute For Information Industry | Wireless device and random access method thereof for mobile communication system |
| WO2019169576A1 (en) * | 2018-03-07 | 2019-09-12 | Qualcomm Incorporated | Coverage enhancement (ce) level and transmit power determination techniques for user equipment (ue) in extended coverage |
| CN112243299A (en) * | 2019-07-17 | 2021-01-19 | 普天信息技术有限公司 | Method and device for sending random access preamble sequence |
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2022
- 2022-12-05 CN CN202211547171.7A patent/CN115568033A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105637969A (en) * | 2013-10-14 | 2016-06-01 | 株式会社Kt | Method for transmitting and receiving random access preamble and device therefor |
| US20180139776A1 (en) * | 2016-11-16 | 2018-05-17 | Institute For Information Industry | Wireless device and random access method thereof for mobile communication system |
| WO2019169576A1 (en) * | 2018-03-07 | 2019-09-12 | Qualcomm Incorporated | Coverage enhancement (ce) level and transmit power determination techniques for user equipment (ue) in extended coverage |
| CN112243299A (en) * | 2019-07-17 | 2021-01-19 | 普天信息技术有限公司 | Method and device for sending random access preamble sequence |
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