CN113543355B - Control method and device for random access of user - Google Patents

Abstract

Embodiments of the present invention provide a random access control method and device for users. According to the evaluation value obtained in the cell system information, the evaluation field strength value when the terminal initiates a service is determined; If the terminal is in a weak field environment, determine the first allowed duration of random access according to the acquired first timer value and first timer compensation value in the cell system information. This embodiment uses the first timer T300 value and the first timer compensation T300offset value to determine the duration of the RRC layer allowing the random access process in the weak field scenario of the terminal, increasing the duration of the first timer T300, and increasing the terminal service initiation The success rate improves user perception.

Description

Method and device for controlling user random access

technical field

The invention relates to the field of mobile communication, in particular to a method and device for controlling random access of users.

Background technique

In the process of mobile communication, when the terminal (UE) changes from idle state to business state, random access can be completed in accordance with the T300 timer.

Fig. 1 is the first display diagram of the existing random access part information of the service initiated by the idle state terminal, and Fig. 2 is the second display diagram of the existing random access part information of the service initiated by the idle state terminal, as shown in Figs. 1 and 2, The random access process occurs strictly according to the random transmission power parameters (PowerRampingParameters) in the cell system message (SIB2) and the timer T300 in the UE timers and counters (Ue-Timersandconstants) to control the allowed duration of random access.

When the UE initiates a service in an idle state, it sends a random access message (MSG) 3, that is, when the UE sends a request to establish a radio resource control connection (RRCConnectionRequest), the timer T300 starts. Before the timeout, if a radio resource control connection establishment message (RRCConnectionSetup) is received or a radio resource control connection establishment message (RRCConnectionReject) is rejected, the timer is stopped. After the timer expires, the UE enters the idle state (RRC_IDLE).

From the perspective of the UE, the random access process may encounter the following problems and lead to random access failure: the UE does not receive the re-authorization request (RAR) corresponding to the random access preamble (preamble) sent by it, including not receiving RAR medium access control layer protocol data unit (MAC PDU), or there is no RAR corresponding to the preamble in the received RAR MAC PDU; UE sent Msg3, but did not receive Msg4; UE received Msg4, but the UE is not in conflict Settle the winner.

If a certain random access fails, the UE will re-initiate random access. When the number of preambles sent by the UE exceeds the maximum number of transmissions (preambleTransMax), the protocol requires the MAC layer to send a random access problem indication (random access problem indication) to the upper layer, usually the radio resource control layer (RRC layer), but the MAC layer does not Will stop sending preamble. That is to say, the MAC layer is designed to send preambles "endlessly", and how to deal with "the number of preambles sent by the UE exceeds preambleTransMax" is determined by the RRC layer.

That is to say, no matter which of the situations described above occurs, the MAC layer will "endlessly" send the preamble in the hope of successfully accessing the cell.

After receiving the random access problem indication from the MAC layer, the behavior of the RRC layer depends on the scenario that triggers random access, when the scenario that triggers random access is the initial RRC connection establishment scenario. At this time, the UE is controlled by the RRC timer T300. When the timer times out (that is, the RRC connection fails to be established), the RRC layer of the UE will stop the random access process (at this time, the MAC will be reset, the MAC configuration will be released, and the reset MAC will be stop the ongoing random access process), and notify the upper layer that the RRC connection establishment fails.

The initial random access process of the existing terminal from the idle state to the business state is strictly in accordance with the T300 timer. Once the random access cannot be completed within the T300 timer, the terminal enters an idle state. The existing technology does not consider the signal environment of the terminal when random access occurs, and the T300 timer is uniformly configured, and all terminals need to complete the random access process within the T300 timer. There is a possibility that a certain weak field terminal cannot complete the random access process within the T300 timer.

Therefore, how to obtain more random access opportunities for weak-field users to improve the random access success rate of these users and improve user perception has become an urgent problem to be solved.

Contents of the invention

Aiming at the defects in the prior art, embodiments of the present invention provide a method and device for controlling user random access.

In a first aspect, an embodiment of the present invention provides a method for controlling user random access, including:

According to the evaluation value in the obtained cell system information, determine the evaluation field strength value when the terminal initiates the service;

If it is judged that the terminal is in a weak field environment according to the evaluated field strength value when initiating the service, then determine the first random access allowed duration according to the acquired first timer value and first timer compensation value in the cell system message .

Optionally, the determining the estimated field strength value when the terminal initiates a service according to the acquired evaluation value in the cell system message includes:

If the stored measurement sample value of the cell initiating the service is smaller than the evaluation value, then determining that the evaluation field strength value when the terminal initiates the service is the average value of the available measurement level;

If the stored measurement sample value of the cell initiating the service is greater than the evaluation value, it is determined that the evaluation field strength value when the terminal initiates the service is an average value of the previous evaluation value and measurement levels.

Optionally, the judging that the terminal is in a weak field environment according to the evaluated field strength value when initiating the service includes:

If the estimated field strength value when the service is initiated is lower than the reference signal strength value obtained in the cell system information, it is determined that the terminal is in the weak field environment.

Optionally, the method also includes:

If it is judged that the terminal is in a normal environment according to the evaluated field strength value when initiating a service, then determine a second random access allowed duration according to the first timer value in the obtained cell system information.

Optionally, the judging that the terminal is in a normal environment according to the evaluated field strength value when initiating a service includes:

If the estimated field strength value when the service is initiated is higher than the reference signal strength value obtained in the cell system information, it is determined that the terminal is in the normal environment.

Optionally, the determining the first random access allowed duration according to the acquired first timer value and first timer compensation value in the cell system message includes:

According to the formula T=T _T300 *(1+T _T300offset ), determine the first random access allowed duration;

Wherein, T represents the first random access allowed duration, T _T300 represents the first timer value in the obtained cell system information, and T _T300offset represents the first timer value in the obtained cell system information. Timer offset value.

In a second aspect, an embodiment of the present invention provides a device for controlling user random access, including:

The first processing module is configured to determine the estimated field strength value when the terminal initiates a service according to the acquired estimated value in the cell system message;

The second processing module is configured to determine according to the first timer value and the first timer compensation value in the obtained cell system message if it is judged that the terminal is in a weak field environment according to the evaluated field strength value when initiating the service The first allowed duration of random access.

Optionally, the determining the estimated field strength value when the terminal initiates a service according to the acquired evaluation value in the cell system message includes:

If the stored measurement sample value of the cell initiating the service is smaller than the evaluation value, then determining that the evaluation field strength value when the terminal initiates the service is the average value of the available measurement level;

If the stored measurement sample value of the cell initiating the service is greater than the evaluation value, it is determined that the evaluation field strength value when the terminal initiates the service is an average value of the previous evaluation value and measurement levels.

In the third aspect, an embodiment of the present invention provides an electronic device, including a memory, a processor, and a computer program stored on the memory and operable on the processor. When the processor executes the program, any one of the above-mentioned The steps of the method for controlling random access of users.

In the fourth aspect, an embodiment of the present invention provides a non-transitory computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the method for controlling user random access described in any one of the above items is implemented. step.

This embodiment uses the first timer T300 value and the first timer compensation T300offset value to determine the duration of the RRC layer allowing the random access process in the terminal weak field scenario, increasing the duration of the first timer T300, increasing the terminal service initiation The success rate improves user perception.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a first display diagram of the existing random access part information of services initiated by idle state terminals provided by the prior art;

FIG. 2 is a second display diagram of the existing random access part information of services initiated by idle state terminals provided by the prior art;

FIG. 3 is a schematic flowchart of a method for controlling user random access provided by an embodiment of the present invention;

FIG. 4 is a schematic diagram of the first part of the information of the primary serving cell measurement and evaluation provided by the embodiment of the present invention;

FIG. 5 is a schematic diagram of the second part of the information of the primary serving cell measurement and evaluation provided by the embodiment of the present invention;

6 is a schematic diagram of the field strength of the DRX periodic measurement main server provided by the embodiment of the present invention;

FIG. 7 is a schematic flowchart of another user random access control method provided by an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of an apparatus for controlling user random access provided by an embodiment of the present invention;

FIG. 9 is a schematic diagram of a physical structure of an electronic device provided by an embodiment of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

FIG. 3 is a schematic flowchart of a method for controlling random access of users provided by an embodiment of the present invention. As shown in FIG. 3 , the method includes:

S301: According to the evaluation value in the obtained cell system information, determine the evaluation field strength value when the terminal initiates a service.

Wherein, the cell system information (SBI2) is actual system information including internal area division information and UE timer in the communication system.

The assessment value (AssessN) is a threshold value of the number of assessment times of the environment level of the terminal.

The evaluation field strength value is an evaluation value of the environment level where the terminal is located.

S302: If it is judged that the terminal is in a weak field environment according to the field strength value evaluated when initiating a service, determine the first random access according to the first timer value and the first timer compensation value in the obtained cell system information Allow time.

Wherein, the weak-field environment is a low-level scene in which the measurement of the serving cell in its own idle state is lower than the weak-field signal strength threshold delivered by the base station side on average.

The first timer value is the first timer T300 value in the cell system message.

The first timer compensation value is the first timer compensation T300offset value in the cell system message.

The first allowed random access duration is the allowed random access duration of the RRC layer determined according to the first timer value and the first timer compensation value in a weak field environment.

Specifically, after the terminal receives the cell system message SIB2, it obtains the newly added parameter configuration of AssessN and T300offset. If the existing network storage network old terminal cannot understand the AssessN and T300offset parameters, it will still take effect according to the previous parameter settings. The current network storage network new terminal collects AssessN and T300offset After the parameters are set, measurement and evaluation are carried out according to the new parameters. According to the issued AssessN value, the comprehensive terminal recently assesses the measurement sample values of N originating service cells, judges the environmental level of the terminal, and determines the value of the assessed field strength.

If the estimated field strength value belongs to the weak field environment value, then according to the obtained first timer T300 value and first timer compensation T300offset value in the cell system information, determine the duration of the random access process allowed by the RRC layer of the terminal. In detail, at this time, the UE is controlled by the RRC layer first timer T300 value and the first timer compensation T300offset value, and the duration of the first timer T300 is increased. When the timer expires (that is, the RRC connection fails to be established), the UE's RRC The layer will stop the random access process. At this time, the MAC will be reset and the MAC configuration will be released. Resetting the MAC will stop the ongoing random access process and notify the upper layer that the RRC connection establishment failed. In a weak field scenario, appropriately increasing the duration of the first timer T300 can increase the success rate of terminal service initiation and improve user perception.

This embodiment uses the first timer T300 value and the first timer compensation T300offset value to determine the duration of the RRC layer allowing the random access process in the terminal weak field scenario, increasing the duration of the first timer T300, increasing the terminal service initiation The success rate improves user perception.

Further, on the basis of the above-mentioned embodiments of the invention, the determining the estimated field strength value when the terminal initiates a service according to the obtained evaluation value in the cell system message includes:

If the stored measurement sample value of the cell initiating the service is smaller than the evaluation value, then determining that the evaluation field strength value when the terminal initiates the service is the average value of the available measurement level;

If the stored measurement sample value of the cell initiating the service is greater than the evaluation value, it is determined that the evaluation field strength value when the terminal initiates the service is an average value of the previous evaluation value and measurement levels.

Wherein, the stored measurement sample value of the originating service cell is the most recently available number of times that the field strength of the main server is measured in the discontinuous reception DRX cycle.

Specifically, in the IDLE state, the terminal measures and evaluates the main carrier frequency (primary serving cell) at least once in each discontinuous reception DRX cycle. Measure the field strength of the main server every DRX cycle and record it. Once the terminal initiates a service request, the terminal confirms and selects the measurement sample values of the last consecutive AssessN originating service cells according to the AssessN value received in the previous SIB2 (if the terminal enters the IDLE state or reselects The time after the new cell is too short, and the stored measurement sample value of the cell initiating the service is less than AssessN, then select the N most recently available measurement levels of the cell) for averaging, and obtain the estimated field strength value when the terminal initiates the service. For example, if the AssessN is 1000 and the actual value is 8, then the terminal judges the environment level as the average value of the previous 8 measured values, that is, the value of the assessed field strength.

In this embodiment, the estimated field strength value is determined through the stored measurement sample values and evaluation values of the originating service cell, which can accurately evaluate the level of the environment where the terminal judges, and then conclude that the terminal is in a weak field environment or a normal environment.

Further, on the basis of the above-mentioned embodiments of the invention, the judging that the terminal is in a weak field environment according to the evaluated field strength value when initiating a service includes:

If the estimated field strength value when the service is initiated is lower than the reference signal strength value obtained in the cell system information, it is determined that the terminal is in the weak field environment.

Wherein, the reference signal strength value is a parameter Uersrp value in the system information of the cell, and is used as a threshold value for judging a weak field environment or a normal environment.

Specifically, after the terminal receives the cell system message SIB2, it will also obtain the Uersrp value, and if the above obtained evaluation field strength value is lower than the obtained reference signal strength Uersrp value in the cell system message, it is judged that the terminal is in the weak state. field environment.

In this embodiment, by referring to the signal strength value and the evaluation field strength value, it can be accurately judged that the terminal is in a weak field environment or a normal environment, so as to facilitate corresponding control of the duration of the allowed random access process.

Further, on the basis of the above-mentioned embodiments of the invention, the method further includes:

If it is judged that the terminal is in a normal environment according to the evaluated field strength value when initiating a service, then determine a second random access allowed duration according to the first timer value in the obtained cell system information.

Wherein, the second random access allowed duration is the duration of the RRC layer allowed random access process determined according to the first timer value in a normal level environment

Specifically, if it is judged that the terminal is in a normal environment according to the evaluated field strength value when initiating a service, then according to the obtained value of the first timer T300 in the cell system message, it is determined that the RRC layer allows random The length of the access process. In detail, at this time, the UE is controlled by the value of the first timer T300 of the RRC layer. When the timer expires (that is, the RRC connection fails to be established), the RRC layer of the UE will stop the random access process. At this time, the MAC will be reset and released. MAC configuration, resetting the MAC will stop the ongoing random access process and notify the upper layer that the RRC connection establishment failed.

In this embodiment, the duration of the random access process allowed by the RRC layer is determined according to the value of the first timer T300 in a normal environment, and resources are allocated reasonably, so as to facilitate more random access opportunities in a weak field environment and satisfy terminals in all environments. To meet the requirements of random access, comprehensively improve the success rate and coverage of random access for users.

Further, on the basis of the above-mentioned embodiments of the invention, the judging that the terminal is in a normal environment according to the evaluation of the field strength value when initiating the service includes:

If the estimated field strength value when the service is initiated is higher than the reference signal strength value obtained in the cell system information, it is determined that the terminal is in the normal environment.

Specifically, if the estimated field strength value is higher than the obtained reference signal strength value in the cell system message when the service is initiated, it is determined that the terminal is in the normal level environment

In this embodiment, by referring to the signal strength value and the evaluation field strength value, it can be accurately judged that the terminal is in a weak field environment or a normal environment, so as to facilitate corresponding control of the duration of the allowed random access process.

Further, on the basis of the above-mentioned embodiments of the invention, the determining the first random access allowed duration according to the obtained first timer value and first timer compensation value in the cell system message includes:

According to the formula T=T _T300 *(1+T _T300offset ), determine the first random access allowed duration;

Wherein, T represents the first random access allowed duration, T _T300 represents the first timer value in the obtained cell system information, and T _T300offset represents the first timer value in the obtained cell system information. Timer offset value.

Specifically, according to the acquired first timer value T300 and first timer compensation value T300offset in the cell system information, determine the duration of the RRC layer allowing the random access process in a weak field environment, in detail, according to the formula T= T _T300 *(1+T _T300offset ) calculates the first random access allowed duration, where T300offset occupies 1 byte, and the value ranges from 0 to 1.

In this embodiment, by using the formula T=T _T300 *(1+T _T300offset ), determining the first allowed duration of random access can compensate the value of the first timer T300 in the system message, so as to increase more random access times to increase the access success rate.

Three new fields, AssessN, Uersrp, and T300offset are added in the cell system message SIB2, where AssessN and Uersrp belong to the subfield of PowerRampingParameters, Uersrp occupies 5 bytes, AssessN occupies 4 bytes; T300offset belongs to The Ue-Timersandconstants subfield occupies 1 byte.

AssessN occupies 4 bytes, which are 0000 to 1111 (0-15), and is mainly used for evaluating the environmental level of the terminal. When the terminal initiates random access, it evaluates the average value of its previous assessN measurement levels. For example, if assessN is 1000 and the actual value is 8, the terminal judges the environment level as the average value of the previous 8 measured values.

Uersrp occupies 5 bytes, respectively 00000 to 11111 (0-31), the actual representative level value is the calculated value -140dbm, for example, the issued value in SIB2 is 01010, the calculated value is 10, and the actual representative level value is 10 -140=-130dbm. If the measured evaluation value is lower than -130dbm, it is judged that the terminal is in a weak field environment.

T300offset occupies 1 byte, which are 0 to 1 (0, 1) respectively. The actual representative value is applied to the issued T300 compensation. For the initial random access terminal that changes from idle state to business state, when it is in a weak field environment, The actual terminal determines the duration of the random access process allowed by the RRC layer in a weak field environment according to the formula T=T _T300 *(1+T _T300offset ).

The specific plan has the following five steps:

Step 1: After receiving the cell system message SIB2, the terminal obtains three newly added parameter configurations of AssessN, Uersrp, and T300offset.

Step 2: If the old terminal on the existing network storage network cannot understand the AssessN, Uersrp, and T300offset parameters, it will still take effect according to the previous parameter settings.

After the new terminal on the existing network receives the AssessN, Uersrp, and T300offset parameters, it performs measurement and evaluation according to the new parameters.

Step 3: Figure 4 is a schematic diagram of the first part of the information of the measurement and evaluation of the primary serving cell provided by the embodiment of the present invention, and Figure 5 is a schematic diagram of the second part of the information of the measurement and evaluation of the primary serving cell provided by the embodiment of the present invention, as shown in Figure 4 and As shown in 5, in the IDLE state of the terminal, the measurement and evaluation of the primary carrier frequency (primary serving cell) is performed at least once in each DRX cycle.

Step 4: Figure 6 is a schematic diagram of the DRX periodic measurement of the field strength of the main server provided by the embodiment of the present invention. As shown in Figure 6, the DRX cycle value is set to 640ms. After the terminal enters the IDLE state, measure the field strength of the main server every DRX cycle and Record, once the terminal initiates a service request, the terminal confirms and selects the measurement sample values of the latest AssessN initiating service cells based on the AssessN value received in the previous SIB2 (if the terminal enters the IDLE state or the time after reselecting a new cell is too short, the stored initiation If the measurement sample value of the service cell is less than AssessN, select the nearest available N measurement levels of the cell) for averaging to obtain the field strength value assessed when the terminal initiates a service.

Step 5: The terminal compares the value of the evaluated field strength with the threshold Uersrp.

If the estimated field strength value is higher than or equal to the threshold Uersrp value, the T300offset value is not enabled on the terminal side, and random service initiation is performed strictly according to the T300 issued in SIB2 on the network side.

If the estimated field strength value is lower than the threshold Uersrp value, the terminal side enables the T300offset value, and controls the allowed duration of random access according to T300+T300offset.

If a certain random access fails, the UE will re-initiate random access. The preambleTransMax field specifies the maximum number of preamble transmissions. When the number of preambles sent by the UE exceeds preambleTransMax, the protocol requires the MAC layer to send a random access problem indication to the upper layer (usually the RRC layer), but the MAC layer will not stop sending preambles. That is to say, the MAC layer is designed to send preambles "endlessly", and how to deal with "the number of preambles sent by the UE exceeds preambleTransMax" is determined by the upper layer (RRC layer). The MAC layer will send preamble "endlessly" in the hope of successfully accessing the cell.

After receiving the random access problem indication from the MAC layer, the behavior of the RRC layer depends on the scenario that triggers random access, when the scenario that triggers random access is the initial RRC connection establishment scenario. At this time, the UE is controlled by RRCtimer T300. When the timer times out (that is, the RRC connection fails to be established), the RRC layer of the UE will stop the random access process (at this time, the MAC will be reset and the MAC configuration will be released. Resetting the MAC will stop the process of The random access process is performed, and the upper layer is notified that the RRC connection establishment fails.

For the scenario where the terminal is in a weak field, appropriately increasing the duration of the T300 timer can increase the success rate of such terminal service initiation and improve user perception.

Fig. 7 is a schematic flowchart of another user random access control method provided by an embodiment of the present invention. As shown in Fig. 7, the method of adjusting the access timer based on the signal strength to optimize the access success rate is newly added by the base station side. The measurement specification, weak field threshold, and access timer compensation value are issued, and the terminal side measures the level of its own idle serving cell multiple times according to the measurement specification, and forms a measured field strength evaluation value for comparison with the reference signal strength value. Once the terminal judges that it is in a low-level scenario (the measurement of its idle serving cell is lower than the reference signal strength value sent by the base station side on average), it will compensate the T300 timer in the system message to increase more random access times To improve the access success rate; if the terminal judges that it is in a normal level scenario (the average measurement of its own idle serving cell is not lower than the reference signal strength value issued by the base station side), then perform random access according to the T300 timer issued by the base station .

FIG. 8 is a schematic structural diagram of a device for controlling user random access provided by an embodiment of the present invention, as shown in FIG. 8:

The first processing module 801 is configured to determine the estimated field strength value when the terminal initiates a service according to the acquired evaluation value in the cell system message;

The second processing module 802 is configured to judge that the terminal is in a weak field environment according to the evaluated field strength value when initiating a service, then according to the acquired first timer value and first timer compensation value in the cell system message, Determine the first random access allowed time length.

This embodiment uses the first timer T300 value and the first timer compensation T300offset value to determine the duration of the RRC layer allowing the random access process in the terminal weak field scenario, increasing the duration of the first timer T300, increasing the terminal service initiation The success rate improves user perception.

Further, on the basis of the above embodiments, the determining the estimated field strength value when the terminal initiates a service according to the obtained evaluation value in the cell system message includes:

If the stored measurement sample value of the cell initiating the service is smaller than the evaluation value, then determining that the evaluation field strength value when the terminal initiates the service is the average value of the available measurement level;

If the stored measurement sample value of the cell initiating the service is greater than the evaluation value, it is determined that the evaluation field strength value when the terminal initiates the service is an average value of the previous evaluation value and measurement levels.

Further, on the basis of the above-mentioned embodiments, the phase holdup spatial cross-sectional distribution diagram obtained according to the sensitive field matrix and the normalized capacitance value includes:

Decomposing the sensitive field matrix according to a successive approximation algorithm to obtain a measurement area matrix and a filling area matrix;

According to the measurement area matrix and the filling area matrix, a phase holdup space section distribution diagram is obtained.

Further, on the basis of the above embodiments, the judging that the terminal is in a weak field environment according to the evaluation of the field strength value when initiating the service includes:

If the estimated field strength value when the service is initiated is lower than the reference signal strength value obtained in the cell system information, it is determined that the terminal is in the weak field environment.

Further, on the basis of the above embodiments, the device further includes:

The third processing module is configured to determine the second random access permission according to the first timer value in the obtained cell system information if it is judged that the terminal is in a normal environment according to the evaluated field strength value when initiating a service duration.

Further, on the basis of the above embodiments, the judging that the terminal is in a normal environment according to the evaluation of the field strength value when initiating the service includes:

If the estimated field strength value when the service is initiated is higher than the reference signal strength value obtained in the cell system information, it is determined that the terminal is in the normal environment.

Further, on the basis of the above embodiments, the determining the first allowed duration of random access according to the obtained first timer value and first timer compensation value in the cell system message includes:

According to the formula T=T _T300 *(1+T _T300offset ), determine the first random access allowed duration;

Wherein, T represents the first random access allowed duration, T _T300 represents the first timer value in the obtained cell system information, and T _T300offset represents the first timer value in the obtained cell system information. Timer offset value.

The apparatus for controlling user random access described in this embodiment can be used to execute the above corresponding method embodiment, and its principles and technical effects are similar, and will not be repeated here.

FIG. 9 illustrates a schematic diagram of the physical structure of an electronic device. As shown in FIG. 9, the electronic device may include: a processor (Processor) 901, a memory (Memory) 902, a communication interface (Communications Interface) 903 and a communication bus 904, wherein, The processor 901 , the memory 902 , and the communication interface 903 communicate with each other through the communication bus 904 . The processor 901 may call the logical instructions in the memory 902 to execute the methods provided by the above method embodiments, for example, including: determining the estimated field strength value when the terminal initiates a service according to the obtained evaluation value in the cell system information; if according to The evaluation of the field strength value when initiating a service determines that the terminal is in a weak field environment, and then determines the first allowed duration of random access according to the acquired first timer value and first timer compensation value in the cell system information.

In addition, the above logic instructions in the memory 902 may be implemented in the form of software function units and be stored in a computer-readable storage medium when sold or used as an independent product. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes. .

An embodiment of the present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it is implemented to perform the methods provided in the above-mentioned method embodiments, for example, including: The evaluation value in the system message determines the value of the evaluated field strength when the terminal initiates the service; if it is judged that the terminal is in a weak field environment according to the evaluated field strength value when the service is initiated, then according to the acquired first timer in the cell system message value and the first timer compensation value to determine the first allowed duration of random access.

The device embodiments described above are only illustrative, and the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in One place, or it can be distributed to multiple network elements. Part or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. It can be understood and implemented by those skilled in the art without any creative efforts.

Through the above description of the implementations, those skilled in the art can clearly understand that each implementation can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware. Based on this understanding, the essence of the above technical solution or the part that contributes to the prior art can be embodied in the form of software products, and the computer software products can be stored in computer-readable storage media, such as ROM/RAM, magnetic discs, optical discs, etc., including several instructions to make a computer device (which may be a personal computer, server, or network device, etc.) execute the methods described in various embodiments or some parts of the embodiments.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (10)

1. A method for controlling random access of a user, comprising:

according to the obtained evaluation value in the cell system message, determining an evaluation field intensity value when the terminal initiates a service;

if the terminal is in a weak field environment according to the evaluation field intensity value when the service is initiated, determining a first random access allowable duration according to the acquired first timer value and first timer compensation value in the cell system message;

the evaluation value is a frequency threshold value of the environmental level evaluation of the terminal; the evaluation field intensity value is an environmental level evaluation value of the terminal; and the low-level scene with average value lower than the threshold value of the strength of the low-field signal issued by the base station side is measured for the self idle state serving cell.

2. The method for controlling random access of a user according to claim 1, wherein the determining the evaluation field strength value when the terminal initiates the service according to the evaluation value in the acquired cell system message comprises:

if the stored measurement sample value of the cell initiating the service is smaller than the evaluation value, determining that the evaluation field intensity value is the average value of the available measurement levels when the terminal initiates the service;

and if the stored measurement sample value of the service initiating cell is larger than the evaluation value, determining that the evaluation field intensity value is the average value of the measurement levels of the evaluation value when the terminal initiates the service.

3. The method for controlling random access of a user according to claim 1, wherein said determining that the terminal is in a weak field environment if the field strength value is evaluated according to the initiation of the service comprises:

and if the estimated field intensity value is lower than the acquired reference signal intensity value in the cell system message when the service is initiated, judging that the terminal is in the weak field environment.

4. The method for controlling random access of a user according to claim 1, wherein the method further comprises:

and if the terminal is in a normal environment according to the evaluation field intensity value when the service is initiated, determining a second random access permission duration according to the first timer value in the acquired cell system message.

5. The method for controlling random access of a user according to claim 4, wherein said determining that the terminal is in a normal environment if the field strength value is evaluated according to the initiation of the service comprises:

and if the estimated field intensity value is higher than the acquired reference signal intensity value in the cell system message when the service is initiated, judging that the terminal is in the normal environment.

6. The method for controlling random access of a user according to claim 1, wherein determining a first random access permission period according to the obtained first timer value and first timer compensation value in the cell system message comprises:

according to the formula t=t _T300 *(1+T _T300offset ) Determining the first random access permission duration;

wherein T represents the first random access permission duration, T _T300 Representing the first timer value, T, in the acquired cell system message _T300offset Representing the first timer offset value in the acquired cell system message.

7. A control apparatus for random access of a user, comprising:

the first processing module is used for determining an evaluation field intensity value when the terminal initiates a service according to the evaluation value in the acquired cell system message;

the second processing module is used for determining a first random access permission duration according to the first timer value and the first timer compensation value in the acquired cell system message if the terminal is judged to be in a weak field environment according to the evaluation field intensity value when the service is initiated;

the evaluation value is a frequency threshold value of the environmental level evaluation of the terminal; the evaluation field intensity value is an environmental level evaluation value of the terminal; and the low-level scene with average value lower than the threshold value of the strength of the low-field signal issued by the base station side is measured for the self idle state serving cell.

8. The apparatus for controlling random access of a user according to claim 7, wherein the determining the evaluation field strength value when the terminal initiates the service according to the evaluation value in the acquired cell system message comprises:

if the stored measurement sample value of the cell initiating the service is smaller than the evaluation value, determining that the evaluation field intensity value is the average value of the available measurement levels when the terminal initiates the service;

and if the stored measurement sample value of the service initiating cell is larger than the evaluation value, determining that the evaluation field intensity value is the average value of the measurement levels of the evaluation value when the terminal initiates the service.

9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the method for controlling random access of a user according to any one of claims 1 to 6 when said program is executed.

10. A non-transitory computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the control method of random access of a user according to any one of claims 1 to 6.