WO2022068209A1 - 一种随机接入方法、装置、存储介质及电子设备 - Google Patents

一种随机接入方法、装置、存储介质及电子设备 Download PDF

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Publication number
WO2022068209A1
WO2022068209A1 PCT/CN2021/092804 CN2021092804W WO2022068209A1 WO 2022068209 A1 WO2022068209 A1 WO 2022068209A1 CN 2021092804 W CN2021092804 W CN 2021092804W WO 2022068209 A1 WO2022068209 A1 WO 2022068209A1
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target
information
pilot information
element value
historical
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PCT/CN2021/092804
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English (en)
French (fr)
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王卫乔
李军
王得名
边艳春
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浙江三维利普维网络有限公司
三维通信股份有限公司
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Publication of WO2022068209A1 publication Critical patent/WO2022068209A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/90—Details of database functions independent of the retrieved data types
    • G06F16/901—Indexing; Data structures therefor; Storage structures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access

Definitions

  • Embodiments of the present invention relate to the field of communications, and in particular, to a random access method, apparatus, storage medium, and electronic device.
  • the random access process is the basis of the wireless communication protocol, and provides the necessary conditions for the terminal to provide network connection and service operation; because the performance of the random access process directly affects the user's perception, it has always been an important concern of operators. index.
  • the 3GPP protocol specifies the basic protocol flow of the random access procedure.
  • the terminal side performing wireless communication fails to detect MSG2 in the random access process, it needs to pass MSG1. Retransmitting and re-initiating access does not improve the demodulation performance of MSG2, so it does not substantially improve the success rate of signal access.
  • Embodiments of the present invention provide a random access method, device, storage medium and electronic device, so as to at least solve the problem of low signal access success rate caused by poor MSG2 demodulation performance in the related art.
  • a random access method including:
  • the target response information is sent using the adjusted target channel.
  • the method before performing target processing on the pre-acquired target pilot information to determine the target element value contained in the target pilot information, the method further includes:
  • the performing target processing on the pre-acquired pilot information to determine the target element value contained in the pilot information includes:
  • the target pilot information is sequentially compared with the historical pilot information received at the target time stored in the first array list, wherein the The target pilot information is the pilot information that needs to be stored and received after receiving the historical pilot information;
  • the target preamble information is set to Information is stored in the target area;
  • the stored second element value of the target preamble information is acquired, and the target element value of the target preamble information is determined based on the second element value.
  • acquiring the stored second element value of the target pilot information, and determining the target element value of the target pilot information based on the second element value includes:
  • the second element value is a threshold value
  • the method further includes:
  • the value of the second element is 0, it is judged whether the third element and the fourth element of the target preamble information satisfy a second target condition, and after determining the first element of the target preamble information When the three elements and the fourth element satisfy the second target condition, add 1 to the value of the second element of the target pilot information;
  • the second element value is a value between 0 and a threshold value
  • the second element value of the target preamble information is incremented by 1.
  • adjusting the channel used for sending the target response message of the target preamble information includes at least one of the following:
  • sequentially storing the historical pilot information in the storage queue of the first array list through the data window according to a preset rule includes:
  • the target historical leading information is stored in a storage queue at a corresponding moment in the first array list.
  • the method after storing the target pilot information in the target area, the method includes:
  • Preamble information acquired after the target time is sequentially stored in the free storage area.
  • the method includes:
  • sequentially comparing the target pilot information with the historical pilot information received at the target time stored in the first array list includes:
  • the target preamble information and the historical preamble information received at the target time stored in the first array list are sequentially compared one by one along the vertical axis.
  • a random access device including:
  • the target processing module is set to carry out target processing to the pre-acquired target pilot information to determine the target element value included in the target pilot information;
  • a channel adjustment module configured to adjust the target channel used for sending the target response message of the target pilot information when it is determined that the target element value of the target pilot information meets the target condition
  • the information sending module is configured to send the target response information by using the adjusted target channel.
  • a computer-readable storage medium is also provided, and a computer program is stored in the computer-readable storage medium, wherein the computer program is configured to execute any one of the above methods when running steps in the examples.
  • an electronic device comprising a memory and a processor, wherein the memory stores a computer program, the processor is configured to run the computer program to execute any of the above Steps in Method Examples.
  • the signal transmission strategy for sending the MSG2 target channel is adjusted according to the element values in the sent MSG1, the problem of low signal access success rate can be solved, and the effect of improving the signal access rate can be achieved.
  • FIG. 1 is a block diagram of a hardware structure of a mobile terminal according to a random access method according to an embodiment of the present invention
  • FIG. 3 is a structural block diagram of a random access apparatus according to an embodiment of the present invention.
  • FIG. 5 is a partial flow chart of a specific embodiment of an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a two-dimensional array list in a specific embodiment of an embodiment of the present invention.
  • FIG. 1 is a block diagram of a hardware structure of a mobile terminal according to a random access method according to an embodiment of the present invention.
  • the mobile terminal may include one or more (only one is shown in FIG.
  • processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 configured to store data, wherein the above-mentioned mobile terminal may further include a transmission device 106 and an input/output device 108 configured as a communication function.
  • a processing device such as a microprocessor MCU or a programmable logic device FPGA
  • a memory 104 configured to store data
  • the above-mentioned mobile terminal may further include a transmission device 106 and an input/output device 108 configured as a communication function.
  • FIG. 1 is only a schematic diagram, which does not limit the structure of the above-mentioned mobile terminal.
  • the mobile terminal may also include more or fewer components than those shown in FIG. 1 , or have a different configuration than that shown in FIG. 1 .
  • the memory 104 may be configured to store computer programs, for example, software programs and modules of application software, such as a computer program corresponding to a random access method in the embodiment of the present invention, the processor 102 runs the computer program stored in the memory 104 by running the computer program. , so as to perform various functional applications and data processing, that is, to implement the above method.
  • Memory 104 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory.
  • the memory 104 may further include memory located remotely from the processor 102, and these remote memories may be connected to the mobile terminal through a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.
  • Transmission means 106 are arranged to receive or transmit data via a network.
  • the specific example of the above-mentioned network may include a wireless network provided by a communication provider of the mobile terminal.
  • the transmission device 106 includes a network adapter (Network Interface Controller, NIC for short), which can be connected to other network devices through a base station so as to communicate with the Internet.
  • the transmission device 106 may be a radio frequency (Radio Frequency, RF for short) module, which is configured to communicate with the Internet in a wireless manner.
  • RF Radio Frequency
  • FIG. 2 is a flowchart of a random access method according to an embodiment of the present invention. As shown in FIG. 2 , the flowchart includes the following steps:
  • Step S202 performing target processing on the pre-acquired target pilot information to determine the target element value contained in the target pilot information
  • the base station will receive a large amount of information from the terminal at the same time, so the target pilot information from the terminal is screened out, and the target pilot information is processed to facilitate the base station to perform corresponding operations according to the processing results. important steps in processing.
  • the terminal uses the target pilot parameters carried by the base station to initiate a non-contention random access process, or initiates a contention random access process independently, and encodes the coded data through the target channel.
  • the target pilot information is sent to the base station (that is, MSG1).
  • the base station After the base station receives the target pilot information sent by the terminal, the base station generates a packet according to the detected target pilot information, the measured value of the target pilot information and the resource allocation status. information (Random access response, also known as RAR or MSG2)), and call to send the PDCCH scrambled by RA-RNTI (Random Access RNTI), and send MSG2 to the terminal through the PDSCH bearer.
  • RAR Random Access response
  • the base station after receiving the target pilot information, the base station first stores the target information according to a preset format, and the storage format can be various.
  • the extracted part can be stored and identified as an element of identification. For example, it is possible (but not limited to) to extract the index information preambleIndex carried in MSG1, the detection information ta_preamblepower on the base station side, and the behavior information transmitted on the terminal side, and store it according to the following structure :
  • ra_preamble_count represents the number of repetitions of the detection of the received target pilot value
  • flag represents whether to trigger a new scheduling mechanism for adjusting the target channel
  • Step S204 when it is determined that the target element value of the target pilot information meets the target condition, adjust the target channel used for sending the target response message of the target pilot information;
  • the target element value of the target pilot information may be (but not limited to) compared with the target condition, so as to determine whether the target element value of the target pilot information meets the target condition; then determine the subsequent execution mode according to the comparison result.
  • the comparison process may be to compare the target element value with the target condition in sequence, or to determine the size of the target element value after acquiring the target element value, or to compare in other ways.
  • the target channel is faulty and needs to be adjusted; or if the value of an element meets the target condition, it is determined that the target channel is normal, and then the normal information is executed. Respond to the operation, or perform corresponding operations on other element values (such as ra_preamble_count) to facilitate the identification of subsequent information.
  • an element such as the flag value
  • Adjusting the target channel includes (but is not limited to) adjusting the signal generation power of the target channel, adjusting the MCS value (Modulation and Coding Scheme, modulation and coding index value), adjusting the aggregation level value, and the like.
  • MCS value Modulation and Coding Scheme, modulation and coding index value
  • the target response message of the target preamble information may (but is not limited to) include feedback information in response to the target preamble information, and may also include other channel information.
  • Step S206 using the adjusted target channel to send target response information.
  • the execution subject of the above steps may be a base station, a terminal, etc., but is not limited thereto.
  • the method before performing target processing on the pre-acquired target pilot information to determine the target element value contained in the target pilot information, the method further includes:
  • Step S2002 obtain historical pilot information; store the historical pilot information in the storage queue of the first array list sequentially through the data window according to preset rules;
  • the historical leading information prior to comparing the target leading information, is obtained first, and the historical leading information is stored in the storage queue as the basis for comparing the target leading information; wherein, the historical leading information is at The leading information received at the moment before the target leading information is obtained, and the storage method can be stored in the storage area according to the sequence or reverse order of the queue, or it can be randomly stored in the storage area of the queue, or it can be historical pilot information and queue.
  • the corresponding relationship between the storage areas is stored, or it can be stored in other ways, as long as the historical leading information can be stored in the storage queue of the first array list.
  • the way to obtain the historical pilot information may be to store the target pilot information when receiving the target pilot information from the terminal, so as to store the received target pilot information as the historical pilot information; or to store the historical pilot information in advance. It is stored in the storage queue of the first array list, and can also be obtained by other methods.
  • the data window can be a data filter window that can screen the received pilot information, wherein the data filter window can be a digital filter window (such as a FIR digital filter window, etc.), or other filter windows; it can also be used to execute The data port for data reception, and the data port can be turned on and closed according to requirements, so as to realize the sliding of the data window; it can also be other data windows that can limit the number of data received; wherein, the length of the data window can be adjusted according to requirements, to adapt to different usage environments.
  • the data filter window can be a digital filter window (such as a FIR digital filter window, etc.), or other filter windows; it can also be used to execute
  • the data port for data reception, and the data port can be turned on and closed according to requirements, so as to realize the sliding of the data window; it can also be other data windows that can limit the number of data received; wherein, the length of the data window can be adjusted according to requirements, to adapt to different usage environments.
  • the first array list can be formed by taking the time of acquiring the target pilot information as the horizontal axis, and the amount of pilot information received from the terminal as the vertical axis, and the intersection of the horizontal axis and the vertical axis is each.
  • the information amount of the pilot information sent by the terminal to the base station at the corresponding time, and the cell formed by the intersection of the horizontal axis and the vertical axis is the storage area for storing historical pilot information; it can also be formed in other ways, as long as the pilot information can be realized. Information can be stored.
  • the size of the storage space of the storage queue in the first array list can be fixed, or it can be changed according to the size of the received information, and it can also be that some areas are the same, and some areas are different, so as to adapt to different environment of use.
  • Performing target processing on the pre-acquired pilot information to determine the target element value contained in the pilot information includes:
  • Step S2022 when it is determined that the data storage capacity of the first array list satisfies the storage condition, compare the target pilot information with the historical pilot information received at the target moment stored in the first array list in turn, wherein the target pilot information is: The pilot information that needs to be stored after receiving the historical pilot information;
  • the target pilot information is then compared with the historical pilot information in the first array list, so as to avoid direct access after receiving the target pilot information.
  • Error response caused by directly storing the target pilot information into the first array list for example, when the first array list does not reach the maximum storage capacity, the comparison process between the target pilot information and the historical pilot information may have a bye, so that the target is incorrectly judged as the target.
  • the preamble information is the preamble information sent by the target channel in a normal state, so that no adjustment is made to the target channel, thereby causing the signal access failure.
  • the process of sequentially comparing the target leading information with the historical leading information received at the target moment stored in the first array list may be to compare an element or a piece of information in the target leading information with a certain moment in the corresponding first array list respectively. It can also compare an element or a piece of information in the target leading information with a certain historical leading information in the storage queue at a certain moment in the corresponding first array list, and also compare the historical leading information in the storage queue. It can be an element or a piece of information in the target leader information is randomly compared with the historical leader information of the storage queue at a certain time in the first array list, or random and a certain historical leader in the corresponding queue in the first array list.
  • the information is compared, as long as the comparison of the target pilot information can be achieved; that is, one target pilot information can be compared with multiple historical pilot information in turn, or one target pilot information and historical pilot information can be mutually corresponding.
  • One-to-one comparison or random one-to-one comparison may also be a comparison of multiple target pilot information and partial historical pilot information or a single historical pilot information, which will not be repeated here.
  • Step S2024 in the case where it is determined based on the comparison result that there is first historical pilot information whose first element value is the same as the first element value of the target pilot information in the historical pilot information received at the target time, the target pilot information is stored in the target area;
  • the target pilot information is stored only when the first element of the target pilot information satisfies the condition, so as to avoid the target pilot information that does not meet the condition from being stored as historical pilot information and subsequently received target pilot information.
  • the target area may (including but not limited to) be a storage area other than the first array list, as long as the target leading information can be stored.
  • the target pilot information when there is first historical pilot information whose preambleIndex value is the same as the preambleIndex value of the target pilot information in the historical pilot information, the target pilot information is stored, otherwise the corresponding preamble information is not stored.
  • Target lead information when there is first historical pilot information whose preambleIndex value is the same as the preambleIndex value of the target pilot information in the historical pilot information, the target pilot information is stored, otherwise the corresponding preamble information is not stored.
  • Step S2026 Acquire the second element value of the stored target pilot information, and determine the target element value of the target pilot information based on the second element value.
  • the second element of the target pilot information is compared, so as to avoid that the first element does not meet the corresponding condition but the second element satisfies the corresponding condition Therefore, the error rate when comparing the target preamble information element at the next moment is reduced, and the success rate of signal access is improved.
  • the corresponding operation is performed on the value of the fifth element, and the value of the fifth element after completing the corresponding operation is determined as the value of the target element, and then according to the target
  • the element value adjusts the target channel.
  • acquiring the second element value of the stored target pilot information, and determining the target element value of the target pilot information based on the second element value includes:
  • Step S20262 detecting the second element value of the stored target pilot information
  • Step S20264 when the second element value is the threshold value, determine whether the third element value and the fourth element value of the target pilot information satisfy the first target condition;
  • Step S20266 in the case that the third element value and the fourth element value of the target preamble information satisfy the first target condition, add 1 to the fifth element value of the target preamble information as the target element value.
  • the value of the second element is the threshold value
  • it is determined that the target channel is faulty and at this time, it is determined whether adjustment is required, and the value of the third element and the value of the fourth element need to be further evaluated. Make judgments, so as to reduce excessive reactions caused by misjudgments, thereby saving energy consumption.
  • the second element value is the threshold value
  • powerstep is the configuration of RACH
  • tavalue(0) is the tavalue value in the historical pilot information corresponding to the target pilot information. If the above two conditions are met at the same time, the flag value is incremented by 1, and the flag value after adding 1 is used as the target element. value.
  • the method further includes:
  • Step S20268 when the value of the second element is 0, determine whether the third element and the fourth element of the target pilot information satisfy the second target condition, and determine whether the third element and the fourth element of the target pilot information satisfy the second target condition. In the case of the target condition, add 1 to the second element value of the target pilot information;
  • Step S202610 when the second element value is a value between 0 and the threshold value, determine whether the third element value and the fourth element value of the target pilot information satisfy the second target condition; When the element value and the fourth element value satisfy the second target condition, the second element value of the target preamble information is incremented by 1.
  • the target channel when the value of the second element is 0 or a value between 0 and the threshold value, it is determined that the target channel is in a normal state, and only a normal message response is required at this time, so as to avoid continuous adjustment energy waste caused by the target channel.
  • ra_preamble_count When the value of ra_preamble_count is 0, then compare whether the tavalue(new) of the target leading information is in the interval [tavalue(0)*2/3, tavalue(0)*4/3], and whether the preamblepower(new) is in the interval Between [preamblepower+powerstep*2/3, preamblepower+powerstep*4/3], when the above conditions are met at the same time, the ra_preamble_count value of the target pilot information is increased by 1;
  • ra_preamble_count When the value of ra_preamble_count is between 0 and the threshold value, it is judged whether the tavalue(new) of the target preamble information is between the interval [tavalue(0)*2/3, tavalue(0)*4/3] , preamblepower(new) judges whether it is in the interval [preamblepower-powerstep/3, preamblepower+powerstep/3]. If the above two conditions are met at the same time, the ra_preamble_count value of the target pilot information is increased by 1.
  • adjusting the channel used for sending the target response message of the target preamble information includes at least one of the following:
  • Step S2062 increasing the aggregation level value of the target channel
  • Step S2064 reducing the modulation and coding index value of the target channel
  • Step S2066 increasing the signal transmission power of the target channel.
  • the historical pilot information is sequentially stored in the storage queue of the first array list through the data window according to preset rules, including:
  • Step S20022 sort the historical leading information according to the order of the information amount of the historical leading information obtained at the same moment from small to large;
  • Step S2002 obtaining a specified number of target historical pilot information according to the sorting order
  • Step S20026 Store the target historical leading information in the storage queue at the corresponding moment in the first array list.
  • the acquired historical pilot information is sorted from small to large, so that the terminal close to the base station and the historical pilot information with less interference information are sorted.
  • the information is filtered out, thereby reducing the amount of data processing and saving energy.
  • a specified number of historical leader information is selected from the historical leader information that has been sorted, which can also further reduce energy consumption; 20 of them will be processed later, and the unprocessed ones will be discarded as false ones. Even if there are real users, they can access them through the next opportunity.
  • the selected historical leading information is then sequentially stored in the storage queue at the corresponding moment, for example, the selected historical leading information is stored in the first storage queue at the first moment in the first array list.
  • the method further includes:
  • Step S20242 sliding the data window in chronological order, to remove the storage area of the historical leading information corresponding to the first moment included in the first array list from the first array list, and the remaining included in the first array list.
  • the storage area of the historical leading information corresponding to the time and the storage area of the target leading information at the target time are determined as the second array list;
  • Step S20244 the information in the removed storage area is cleared to obtain free storage area
  • step S20246 the leading information acquired after the target time is sequentially stored in the free storage area.
  • a sliding window action needs to be performed.
  • the storage queue near the beginning of time is moved out of the first array list, and the storage queue storing the target leading information at the new moment constitutes an update to the historical leading information in the array list, and at the same time, the information in the removed storage area is updated. Clearing is performed to obtain free memory areas so that new memory locations can be used to store new preamble information.
  • the storage area of the historical leading information corresponding to the remaining time and the storage area of the target leading information at the target time included in the first array list are determined as the second array list, so as to ensure the stored historical leading information Real-time performance, to avoid misjudgment caused by low real-time performance.
  • the data window needs to be slid to the initial position again to store the data again.
  • the method before the historical pilot information is sequentially stored in the storage queue of the first array list through the data window according to a preset rule, the method includes:
  • Step S2000 taking the time sequence as the horizontal axis, and taking the device sending the target pilot information as the vertical axis, determine the first array list;
  • sequentially comparing the target pilot information with the historical pilot information received at the target time stored in the first array list includes:
  • Step S20222 compare the target leading information one by one along the vertical axis with the historical leading information received at the target time stored in the first array list in turn.
  • a target pilot information is first taken, and then the target pilot information is sequentially compared with the historical pilot information in the storage queue at the corresponding moment, After completing the comparison with all the historical leading information of the storage queue at the corresponding time, the next target leading information is taken out along the vertical axis direction, and the newly extracted target leading information is sequentially compared with the historical leading information in the storage queue at the corresponding time. For comparison, the above actions are repeated until all the target leading information has been compared.
  • a random access apparatus is also provided in this embodiment, and the apparatus is used to implement the above-mentioned embodiments and preferred implementation manners, and what has been described will not be repeated.
  • the term "module” may be a combination of software and/or hardware that implements a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, implementations in hardware, or a combination of software and hardware, are also possible and contemplated.
  • FIG. 3 is a structural block diagram of a random access apparatus according to an embodiment of the present invention. As shown in FIG. 3 , the apparatus includes:
  • the target processing module 32 is configured to perform target processing on the pre-acquired target pilot information to determine the target element value contained in the target pilot information;
  • the channel adjustment module 34 is configured to adjust the target channel used for sending the target response message of the target pilot information when it is determined that the target element value of the target pilot information meets the target condition;
  • the information sending module 36 is configured to send the target response information by using the adjusted target channel.
  • the device further includes:
  • the historical storage module 302 is configured to obtain historical pilot information; the historical pilot information is sequentially stored in the storage queue of the first array list through the data window according to preset rules;
  • the target processing module 32 includes:
  • the information comparison unit 322 is configured to compare the target leading information with the historical leading information received at the target moment stored in the first array list in turn when it is determined that the data storage amount of the first array list satisfies the storage condition, wherein,
  • the target pilot information is the pilot information that needs to be stored after receiving the historical pilot information;
  • the information storage unit 324 is configured to, in the case of determining, based on the comparison result, that in the historical pilot information received at the target time, there is first historical pilot information whose first element value is the same as the first element value of the target pilot information, store the target pilot information. Pilot information is stored in the target area;
  • the target determining unit 326 is configured to acquire the second element value of the stored target preamble information, and determine the target element value of the target preamble information based on the second element value.
  • the target determination unit 326 includes:
  • the element detection subunit 3262 is set to detect the second element value of the stored target pilot information
  • the first judgment subunit 3264 is configured to judge whether the third element value and the fourth element value of the target pilot information satisfy the first target condition when the second element value is the threshold value;
  • the element processing subunit 3266 is configured to add 1 to the fifth element value of the target preamble information as the target element value when the third element value and the fourth element value of the target preamble information satisfy the first target condition.
  • the target determination unit 326 further includes:
  • the second judging subunit 3268 is configured to judge whether the third element and the fourth element of the target pilot information satisfy the second target condition when the value of the second element is 0, and determine whether the third element and the fourth element of the target pilot information satisfy the second target condition. When the fourth element satisfies the second target condition, add 1 to the value of the second element of the target pilot information;
  • the third judging subunit 32610 is configured to judge whether the third element value and the fourth element value of the target pilot information satisfy the second target condition when the second element value is a value between 0 and the threshold value; When the third element value and the fourth element value of the target preamble information satisfy the second target condition, the second element value of the target preamble information is incremented by 1.
  • the information sending module 36 includes at least one of the following:
  • the aggregation level improving unit 362 is set to improve the aggregation level value of the target channel
  • the power boosting unit 366 is configured to increase the signal transmission power of the target channel.
  • the history storage module 302 includes:
  • the sorting unit 3022 is configured to sort the historical leading information according to the order of the information amount of the historical leading information obtained at the same moment from small to large;
  • the historical information collection unit 3024 is configured to obtain a specified number of target historical pilot information in a sorted order
  • the history storage unit 3026 is configured to store the target history leading information in the storage queue at the corresponding moment in the first array list.
  • the information storage unit 324 includes:
  • the sliding window subunit 3242 is set to slide the data window in chronological order to remove the storage area of the historical leading information corresponding to the first moment included in the first array list from the first array list, and the first array list
  • the storage area of the historical pilot information corresponding to the remaining moments included in the storage area and the storage area of the target pilot information at the target moment are determined as the second array list;
  • Clearing subunit 3244 is set to clear the information in the removed storage area to obtain free storage area
  • the target storage sub 3246 is configured to sequentially store the leading information acquired after the target time in the free storage area.
  • the history storage module 302 includes:
  • the array determination unit 3022 is set to take the time sequence as the horizontal axis, and determine the first array list with the device that sends the target pilot information as the vertical axis;
  • the information comparison unit 322 includes:
  • the traversing unit 3224 is configured to sequentially compare the target pilot information with the historical pilot information received at the target time stored in the first array list one by one along the vertical axis.
  • the above modules can be implemented by software or hardware, and the latter can be implemented in the following ways, but not limited to this: the above modules are all located in the same processor; or, the above modules can be combined in any combination The forms are located in different processors.
  • the data structure of storage unit information is designed as follows:
  • ra_preamble_count is the number of repetitions of detection, and flag is the element value that triggers the new scheduling mechanism (corresponding to step S401 in FIG. 4 ).
  • a two-dimensional array list structure as shown in Figure 6 wherein the vertical axis represents the valid information value detected at each TTI time (transmission time interval) at the base station side, and each cell stores the aforementioned unit information structure.
  • the horizontal axis represents the time list, each column represents a TTI time, the m value is the length of an MSG2 (ie RAR) detection window, and the last column is the information detected at the latest arrival time (corresponding to step S402 in FIG. 4 ).
  • step S403 in FIG. 4 and step S501 in FIG. 5 first perform initialization information screening on the preamble information detected by each TTI (corresponding to step S403 in FIG. 4 and step S501 in FIG. 5 ); wherein, in order to reduce the influence of false detection factors and the abnormal access caused by other network factors , the maximum number of detection information is limited, and the restriction rules can be sorted from small to large based on the TA measurement value, for example, the first 20 are taken for subsequent processing (unprocessed ones are discarded as false, even if there are real users, they can also be received through the next opportunity. enter).
  • the initial screening value is stored in the storage queue at the corresponding time through the sliding window processing.
  • the obtained historical pilot information is sequentially stored in the first array list according to the TTI time (corresponding to Fig. 4 ). in step S404 and step S502 in FIG. 5 ).
  • the element values contained in the target pilot information detected at the new arrival time are traversed in sequence according to the detection user cycle (corresponding to steps S503 and S504 in FIG. 5 ), that is, the comparison slides in turn
  • the element value information of the starting column (ie, column 0) in the window is compared to see if they have the same preambleIndex value. If they are the same, the target preamble information is stored according to the starting column (corresponding to step S405 in FIG. 4 ).
  • the related element values are processed in different ways based on different rules. (corresponding to step S406 in FIG. 4 and corresponding to step S505 in FIG. 5 )
  • powerstep is the value of the RACH configuration parameter powerRampingStep. If the conditions are met at the same time, the value of ra_preamble_count is incremented by 1 at the new arrival time.
  • ra_preamble_count When the value of ra_preamble_count is 1 or 2, it is processed according to rule 2.
  • ra_preamble_count When the value of ra_preamble_count is greater than or equal to 3 (where 3 is the threshold value, which can be adjusted according to the wireless environment), compare whether the new arrival time tavalue(new) is in the interval [tavalue(0)*2/3,tavalue(0)* 4/3], and judge whether preamblepower(new) is between the interval [preamblepower-powerstep/3, preamblepower+powerstep/3]. If both are satisfied, the storage unit information element flag that satisfies the condition is set to 1.
  • the column element in the queue index 0 is deleted, and the sliding window is moved.
  • the column 1 of the queue is updated to the column 0 of the new list, and the new arrival time sequence is entered into the queue list structure (corresponding to the Step S406).
  • the base station side Before allocating the MSG2 (RAR) resource information of the newly accessed user, the base station side first queries the newly entered queue element to see if there is a flag with a value of 1 element.
  • the RAR detection failure scenario requires further processing.
  • the downlink scheduler on the base station side can increase the aggregation level value and decrease the MCS (at the same time, it needs to meet the restriction conditions of QPSK modulation).
  • the transmit power of the PDCCH When allocating the PDCCH resources corresponding to MSG2, the downlink scheduler on the base station side can increase the aggregation level value and decrease the MCS (at the same time, it needs to meet the restriction conditions of QPSK modulation).
  • the downlink scheduler on the base station side allocates the corresponding MSG2 service resources, it needs to adjust and reduce the MCS value of the corresponding downlink service channel, and at the same time increase the transmission power, thereby improving the robustness of the RAR information at the scheduling moment, so that the terminal side
  • the received signal power and the signal-to-noise ratio are improved, and the demodulation performance is improved, so as to achieve the purpose of increasing the probability of the corresponding detection, thereby increasing the probability of successful access of such users.
  • An embodiment of the present invention further provides a storage medium, where a computer program is stored in the storage medium, wherein the computer program is configured to execute the steps in any one of the above method embodiments when running.
  • the above-mentioned storage medium may include, but is not limited to: a USB flash drive, a read-only memory (Read-Only Memory, referred to as ROM), a random access memory (Random Access Memory, referred to as RAM), a removable hard disk Various media that can store computer programs, such as , disk, or CD.
  • An embodiment of the present invention also provides an electronic device, comprising a memory and a processor, where a computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any of the above method embodiments.
  • the above-mentioned electronic device may further include a transmission device and an input-output device, wherein the transmission device is connected to the above-mentioned processor, and the input-output device is connected to the above-mentioned processor.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be centralized on a single computing device, or distributed in a network composed of multiple computing devices
  • they can be implemented in program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, can be performed in a different order than shown here.
  • the described steps, or they are respectively made into individual integrated circuit modules, or a plurality of modules or steps in them are made into a single integrated circuit module to realize.
  • the present invention is not limited to any particular combination of hardware and software.

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Abstract

本发明实施例提供了一种随机接入方法、装置、存储介质及电子设备，其方法包括：对预先获取的目标先导信息进行目标处理以确定所述目标先导信息中包含的目标元素值；在确定所述目标先导信息的目标元素值符合目标条件的情况下，对用于发送所述目标先导信息的目标响应消息的目标信道进行调整；利用调整后的目标信道发送所述目标响应信息。通过本发明，解决了相关技术中因MSG2解调性能差造成的信号接入成功率低的问题，进而达到了提高信号接入率的效果。

Description

一种随机接入方法、装置、存储介质及电子设备 技术领域
本发明实施例涉及通信领域，具体而言，涉及一种随机接入方法、装置、存储介质及电子设备。
背景技术
随机接入过程是无线通信协议的基础，为终端提供网络连接和业务运行提供了必要条件；由于随机接入过程的性能优劣直接影响到用户的感知，因而也一直是各运营商关注的重要指标。目前，3GPP协议规定了随机接入过程的基本协议流程。
在随机接入过程中，由于下行信道无线环境复杂，在下行干扰或其他因素导致信道条件较差的情况下，如果执行无线通信的终端侧对随机接入过程的MSG2检测失败，则需要通过MSG1重传来重新发起接入，这种方式并没有改善MSG2的解调性能，因而对信号接入成功率的提升并无实质改善。
而目前并无相关技术方案能够对上述问题进行解决。
发明内容
本发明实施例提供了一种随机接入方法、装置、存储介质及电子设备，以至少解决相关技术中因MSG2解调性能差造成的信号接入成功率低的问题。
根据本发明的一个实施例，提供了一种随机接入方法，包括：
对预先获取的目标先导信息进行目标处理以确定所述目标先导信息中包含的目标元素值；
在确定所述目标先导信息的目标元素值符合目标条件的情况下，对用于发送所述目标先导信息的目标响应消息的目标信道进行调整；
利用调整后的目标信道发送所述目标响应信息。
在一个示例性实施例中，在对预先获取的目标先导信息进行目标处理以确定所述目标先导信息中包含的目标元素值之前，所述方法还包括：
获取历史先导信息；将所述历史先导信息通过数据窗按照预设规则依次存储至第一数组列表的存储队列中；
所述对预先获取的先导信息进行目标处理以确定所述先导信息中包含的目标元素值包括：
在确定所述第一数组列表的数据存储量满足存储条件的情况下，将所述目标先导信息与所述第一数组列表中存储的目标时刻接收到的历史先导信息依次进行比较，其中，所述目标先导信息为在接收所述历史先导信息之后接收到的需要存储的先导信息；
在基于比较结果确定出在所述目标时刻接收到的历史先导信息中存在第一元素值与所述目标先导信息的第一元素值相同的第一历史先导信息的情况下，将所述目标先导信息存储在目标区域；
获取存储后的所述目标先导信息的第二元素值，以及基于所述第二元素值确定所述目标先导信息的所述目标元素值。
在一个示例性实施例中，获取存储后的所述目标先导信息的第二元素值，以及基于所述第二元素值确定所述目标先导信息的所述目标元素值包括：
检测存储后的所述目标先导信息的所述第二元素值；
在所述第二元素值为门限值的情况下，判断所述目标先导信息的第三元素值和第四元素值是否满足第一目标条件；
在所述目标先导信息的所述第三元素值和所述第四元素值满足所述第一目标条件的情况下，将所述目标先导信息的第五元素值加1以作为所述目标元素值。
在一个示例性实施例中，在检测存储后的所述目标先导信息的所述第二元素值之后，所述方法还包括：
在所述第二元素值为0的情况下，判断所述目标先导信息的所述第三元素和所述第四元素是否满足第二目标条件，并在确定所述目标先导信息的所述第三元素和所述第四元素满足所述第二目标条件的情况下，将所述目标先导信息的所述第二元素值加1；
在所述第二元素值为0与门限值之间的数值的情况下，判断所述目标先导信息的所述第三元素值和所述第四元素值是否满足第二目标条件；在所述目标先导信息的所述第三元素值和所述第四元素值满足第二目标条件的情况下，将所述目标先导信息的所述第二元素值加1。
在一个示例性实施例中，对用于发送所述目标先导信息的目标响应消息的信道进行调整包括以下至少之一：
提升所述目标信道的聚合等级值；
降低所述目标信道的调制编码索引值；
提高所述目标信道的信号发射功率。
在一个示例性实施例中，将所述历史先导信息通过数据窗按照预设规则依次存储至第一数组列表的存储队列中包括：
根据同一时刻获取的所述历史先导信息的信息量由小到大的顺序对所述历史先导信息进行排序；
按照排序顺序获取指定数量的目标历史先导信息；
将所述目标历史先导信息存储至所述第一数组列表的对应时刻的存储队列中。
在一个示例性实施例中，在将所述目标先导信息存储在目标区域之后，所述方法包括：
按时间顺序滑移所述数据窗，以将所述第一数组列表中包括的第一时刻对应的历史先导信息的存储区域从所述第一数组列表中移除，并将所述第一数组列表中包括的 剩余时刻对应的历史先导信息的存储区域与所述目标时刻的目标先导信息的存储区域确定为第二数组列表；
将被移除的存储区中的信息进行清零以得到空闲存储区域；
将在所述目标时刻之后获取的先导信息依次存储至所述空闲存储区域中。
在一个示例性实施例中，
所述将所述历史先导信息通过数据窗按照预设规则依次存储至第一数组列表的存储队列中之前，所述方法包括：
以时间顺序为横轴，以发送目标先导信息的设备为纵轴确定所述第一数组列表；
所述在确定所述第一数组列表的数据存储量满足存储条件的情况下，将所述目标先导信息与所述第一数组列表中存储的目标时刻接收到的历史先导信息依次进行比较包括：
沿所述纵轴逐个将所述目标先导信息与所述第一数组列表中存储的目标时刻接收到的历史先导信息依次进行比较。
根据本发明的另一个实施例，提供了一种随机接入装置，包括：
目标处理模块，设置为对预先获取的目标先导信息进行目标处理以确定所述目标先导信息中包含的目标元素值；
信道调整模块，设置为在确定所述目标先导信息的目标元素值符合目标条件的情况下，对用于发送所述目标先导信息的目标响应消息的目标信道进行调整；
信息发送模块，设置为利用调整后的目标信道发送所述目标响应信息。
根据本发明的又一个实施例，还提供了一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机程序，其中，所述计算机程序被设置为运行时执行上述任一项方法实施例中的步骤。
根据本发明的又一个实施例，还提供了一种电子装置，包括存储器和处理器，所述存储器中存储有计算机程序，所述处理器被设置为运行所述计算机程序以执行上述任一项方法实施例中的步骤。
通过本发明，由于根据发送的MSG1中的元素值调整发送MSG2目标信道的信号发送策略，因此，可以解决信号接入成功率低的问题，达到提高信号接入率的效果。
附图说明
图1是本发明实施例的一种随机接入方法的移动终端的硬件结构框图；
图2是根据本发明实施例的一种随机接入方法的流程图；
图3是根据本发明实施例的一种随机接入装置的结构框图；
图4是本发明实施例的一个具体实施例的流程图；
图5是本发明实施例的一个具体实施例的局部流程图；
图6是本发明实施例的一个具体实施例中二维数组列表示意图。
具体实施方式
下文中将参考附图并结合实施例来详细说明本发明的实施例。
需要说明的是，本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。
本申请实施例中所提供的方法实施例可以在移动终端、计算机终端或者类似的运算装置中执行。以运行在移动终端上为例，图1是本发明实施例的一种随机接入方法的移动终端的硬件结构框图。如图1所示，移动终端可以包括一个或多个(图1中仅示出一个)处理器102(处理器102可以包括但不限于微处理器MCU或可编程逻辑器件FPGA等的处理装置)和设置为存储数据的存储器104，其中，上述移动终端还可以包括设置为通信功能的传输设备106以及输入输出设备108。本领域普通技术人员可以理解，图1所示的结构仅为示意，其并不对上述移动终端的结构造成限定。例如，移动终端还可包括比图1中所示更多或者更少的组件，或者具有与图1所示不同的配置。
存储器104可设置为存储计算机程序，例如，应用软件的软件程序以及模块，如本发明实施例中的一种随机接入方法对应的计算机程序，处理器102通过运行存储在存储器104内的计算机程序，从而执行各种功能应用以及数据处理，即实现上述的方法。存储器104可包括高速随机存储器，还可包括非易失性存储器，如一个或者多个磁性存储装置、闪存、或者其他非易失性固态存储器。在一些实例中，存储器104可进一步包括相对于处理器102远程设置的存储器，这些远程存储器可以通过网络连接至移动终端。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
传输装置106设置为经由一个网络接收或者发送数据。上述的网络具体实例可包括移动终端的通信供应商提供的无线网络。在一个实例中，传输装置106包括一个网络适配器(Network Interface Controller，简称为NIC)，其可通过基站与其他网络设备相连从而可与互联网进行通讯。在一个实例中，传输装置106可以为射频(Radio Frequency，简称为RF)模块，其设置为通过无线方式与互联网进行通讯。
在本实施例中提供了一种随机接入方法，图2是根据本发明实施例的一种随机接入方法的流程图，如图2所示，该流程包括如下步骤：
步骤S202，对预先获取的目标先导信息进行目标处理以确定目标先导信息中包含的目标元素值；
在本实施例中，基站在同一时刻会接收到大量来自终端的信息，因而从中筛选出来自终端的目标先导信息，并对目标先导信息进行处理以方便基站根据处理结果执行对应的操作便成为信息处理的重要步骤。
以3GPP标准协议为例，终端收到基站发起的调度指示后，终端使用基站配置携 带的目标先导参数发起非竞争随机接入过程，或单独发起竞争随机接入过程，并通过目标信道将编码后的目标先导信息发送到基站(即为MSG1)，基站在接收到终端发送的目标先导信息后，基站根据检测到的目标先导信息、对目标先导信息的测量值及资源分配状况，响应生成组包信息(Random access response，又称RAR或MSG2))，并调用发送RA-RNTI(Random Access RNTI)加扰的PDCCH，同时通过PDSCH承载发送MSG2给终端。
其中，基站在接收到目标先导信息之后，先按照预设的格式对目标信息进行存储，存储的格式可以有多种，而为方便对目标信息进行处理以及节约存储空间，可以从目标先导信息中提取出部分能够作为标识的元素进行存储和识别，例如，可以(但不限于)提取MSG1中携带的索引信息preambleIndex，基站侧检测信息ta_preamblepower，以及终端侧重传的行为信息，并按以下结构进行存储：
typedef struct：
{
UInt8 preambleIndex；
UInt8 tavalue；
SInt16 preamblepower；
UInt8 ra_preamble_count；
UInt8 flag；
}
式中，ra_preamble_count表示对接收到的目标先导值进行检测的重复次数，flag表示是否触发对目标信道进行调整的新调度机制，且在对上述元素值进行存储时，预先对上述元素赋值为“ff”或“0”，从而避免元素值在进行处理时被误判。
步骤S204，在确定目标先导信息的目标元素值符合目标条件的情况下，对用于发送目标先导信息的目标响应消息的目标信道进行调整；
在本实施例中，在确定目标先导信息的目标元素值之后，可以(但不限于)将目标先导信息的目标元素值与目标条件进行比对，从而确定目标先导信息的目标元素值是否符合目标条件；随后根据比对结果确定后续的执行方式。
其中，比对过程可以是将目标元素值依次与目标条件进行比对，也可以是在获取目标元素值后，确定目标元素值的大小，还可以是通过其它方式进行比较。
例如，某个元素值(如flag值)不符合目标条件，则确定目标信道出现故障，需要进行信道的调整；或某个元素值符合目标条件，则确定目标信道正常，随后继续执行正常的信息响应操作，或对其它元素值(如ra_preamble_count)进行对应的操作，以方便对后续信息进行识别。
对目标信道进行调整包括(但不限于)调整目标信道的信号发生功率、调整MCS 值(Modulation and Coding Scheme，调制编码索引值)、调整聚合等级值等。
目标先导信息的目标响应消息可以(但不限于)包括响应于目标先导信息的反馈信息，还可以包括其它的信道信息。
步骤S206，利用调整后的目标信道发送目标响应信息。
通过上述步骤，由于在接收到MSG1后根据MSG1中的元素值进行检测和比对，并根据检测和比对结果对发送MSG2的信道进行调配正，从而解决了因MSG2解调性能差造成的信号接入成功率低的问题，提高了信号随机接入的成功率。
其中，上述步骤的执行主体可以为基站、终端等，但不限于此。
在一个可选的实施例中，在对预先获取的目标先导信息进行目标处理以确定目标先导信息中包含的目标元素值之前，该方法还包括：
步骤S2002，获取历史先导信息；将历史先导信息通过数据窗按照预设规则依次存储至第一数组列表的存储队列中；
在本实施例中，在对目标先导信息进行比对之前，先获取历史先导信息，并将历史先导信息存储在存储队列中，以作为目标先导信息的比对基础；其中，历史先导信息为在获取目标先导信息之前的时刻所接收到的先导信息，且存储方式可以按照队列的先后顺序或倒序依次存储在存储区域，也可以是随机存储在队列的存储区域，还可以是历史先导信息与队列的存储区域之间的对应关系进行存储，还可以是按照其它方式进行存储，只要能够实现将历史先导信息存储至第一数组列表的存储队列中即可。
获取历史先导信息的方式可以是在接收到来自终端的目标先导信息时，对目标先导信息进行存储，以将已经接收到的目标先导信息作为存储为历史先导信息；也可以是预先将历史先导信息存储在第一数组列表的存储队列中，还可以是通过其它方式进行获得。
数据窗可以是能够对接收到的先导信息进行筛选的数据滤窗，其中，数据滤窗可以是数字滤窗(如FIR数字滤窗等)，也可以是其它滤窗；也可以是用于执行数据接收的数据端口，且数据端口可以根据需求执行导通和闭合，从而实现数据窗的滑动；还可以是其它能够限定数据接收数量的数据窗；其中，数据窗的长度可以按照需求进行调整，以适应不同的使用环境。
第一数组列表的构成方式可以是以获取目标先导信息的时间为横轴，以接收的来自终端的先导信息量的为纵轴的形式构成，而横轴与纵轴的交汇点即为每个终端在对应时刻发送至基站的先导信息的信息量，且横轴与纵轴交汇形成的单元格即为用于存储历史先导信息的存储区域；也可以是以其它方式构成，只要能够实现对先导信息进行存储即可。
需要说明的是，第一数组列表中的存储队列的存储空间的大小可以是固定的，也可以是随接收的信息量的大小进行变化，还可以是部分区域相同，部分区域不同，从 而适应不同的使用环境。
对预先获取的先导信息进行目标处理以确定先导信息中包含的目标元素值包括：
步骤S2022，在确定第一数组列表的数据存储量满足存储条件的情况下，将目标先导信息与第一数组列表中存储的目标时刻接收到的历史先导信息依次进行比较，其中，目标先导信息为在接收历史先导信息之后接收到的需要存储的先导信息；
在本实施例中，在第一数组列表的存储队列均达到最大存储量的情况下，再将目标先导信息与第一数组列表中的历史先导信息进行对比，以避免接收到目标先导信息后直接将目标先导信息直接存储至第一数组列表中造成的错误响应；例如，当第一数组列表未达到最大存储量时，目标先导信息与历史先导信息的比较过程可能存在轮空，从而错误判断为目标先导信息为处于正常状态的目标信道发送的先导信息，从而不对目标信道作调整，进而导致信号的接入失败。
将目标先导信息与第一数组列表中存储的目标时刻接收到的历史先导信息依次进行比较的过程可以是将目标先导信息中的一个元素或者一个信息分别与对应的第一数组列表中某一时刻的存储队列中的历史先导信息进行比较，也可以是将目标先导信息中的一个元素或者一个信息与对应的第一数组列表中某一时刻的存储队列中的某一个历史先导信息进行比较，还可以是将目标先导信息中的一个元素或者一个信息随机与第一数组列表中某一时刻的存储队列的历史先导信息进行比较，或随机与第一数组列表中对应的队列中的某一个历史先导信息进行比较，只要能够实现对目标先导信息的比较即可；即，可以是一个目标先导信息可以与多个历史先导信息依次进行比较，也可以是一个目标先导信息与历史先导信息进行相互对应的一对一比较或随机的一对一比较，还可以是多个目标先导信息与部分历史先导信息或单个历史先导信息进行比较，此处不再赘述。
步骤S2024，在基于比较结果确定出在目标时刻接收到的历史先导信息中存在第一元素值与目标先导信息的第一元素值相同的第一历史先导信息的情况下，将目标先导信息存储在目标区域；
在本实施例中，在目标先导信息的第一元素满足条件的情况下才对目标先导信息进行存储，以避免不满足条件的目标先导信息在存储为历史先导信息后对后续接收的目标先导信息造成错误的比对结果；其中，目标区域可以(包括但不限于)是在第一数组列表以外的存储区域，只要能够实现对目标先导信息的存储即可。
以第一元素为preambleIndex值为例，当历史先导信息中存在preambleIndex值与目标先导信息的preambleIndex值相同的第一历史先导信息的情况下，则将该目标先导信息进行存储，否则不存储对应的目标先导信息。
步骤S2026，获取存储后的目标先导信息的第二元素值，以及基于第二元素值确定目标先导信息的目标元素值。
在本实施例中，在确定目标先导信息的第一元素满足对应的条件后，再对目标先导信息的第二元素进行比较，以避免存在第一元素不满足对应的条件但第二元素满足对应的要求的情况，从而减少对下一时刻的目标先导信息元素进行比对时的错误率，提高信号接入的成功率。
以第二元素值为ra_preamble_count值为例，当ra_preamble_count值为门限值时，则对第五元素值执行对应操作，并将完成对应操作后的第五元素值确定为目标元素值，随后根据目标元素值对目标信道进行调整。
在一个可选的实施例中，获取存储后的目标先导信息的第二元素值，以及基于第二元素值确定目标先导信息的目标元素值包括：
步骤S20262，检测存储后的目标先导信息的第二元素值；
步骤S20264，在第二元素值为门限值的情况下，判断目标先导信息的第三元素值和第四元素值是否满足第一目标条件；
步骤S20266，在目标先导信息的第三元素值和第四元素值满足第一目标条件的情况下，将目标先导信息的第五元素值加1以作为目标元素值。
在本实施例中，在第二元素值为门限值的情况下，则判断目标信道出现了故障，而此时确定是否需要进行调整，则还需要再对第三元素值和第四元素值进行判断，从而能够减少误判造成的过度反应，进而节约能量的损耗。
以第三元素值为tavalue值，第四元素值为preamblepower值，第五元素为flag值为例，当第二元素值为门限值时，判断目标先导信息中的tavalue值是否在区间[tavalue(0)*2/3,tavalue(0)*4/3]之间，且判断preamblepower值是否在区间[preamblepower-powerstep/3,preamblepower+powerstep/3]之间，其中，powerstep为RACH的配置参数powerRampingStep的值，tavalue(0)为与目标先导信息对应的历史先导信息中的tavalue值，若同时满足上述两个条件，则使flag值加1，并将加1后的flag值作为目标元素值。
在一个可选的实施例中，在检测存储后的目标先导信息的第二元素值之后，该方法还包括：
步骤S20268，在第二元素值为0的情况下，判断目标先导信息的第三元素和第四元素是否满足第二目标条件，并在确定目标先导信息的第三元素和第四元素满足第二目标条件的情况下，将目标先导信息的第二元素值加1；
步骤S202610，在第二元素值为0与门限值之间的数值的情况下，判断目标先导信息的第三元素值和第四元素值是否满足第二目标条件；在目标先导信息的第三元素值和第四元素值满足第二目标条件的情况下，将目标先导信息的第二元素值加1。
在本实施例中，当第二元素值为0或0与门限值之间的数值时，则判定目标信道处于正常状态，此时只需保持正常的消息响应即可，从而避免持续保持调整后的目标 信道造成的能量浪费。
以第三元素值为tavalue值，第四元素值为preamblepower值为例。
当ra_preamble_count取值为0时，则比较目标先导信息的tavalue(new)是否在区间[tavalue(0)*2/3,tavalue(0)*4/3]之间，preamblepower(new)是否在区间[preamblepower+powerstep*2/3,preamblepower+powerstep*4/3]之间，当同时满足上述条件时，则使目标先导信息的ra_preamble_count值加1；
当ra_preamble_count取值为0与门限值之间的数值时，则判断目标先导信息的tavalue(new)是否在区间[tavalue(0)*2/3,tavalue(0)*4/3]之间，preamblepower(new)判断是否在区间[preamblepower-powerstep/3,preamblepower+powerstep/3]，若同时满足上述两个条件，则使目标先导信息的ra_preamble_count值加1。
在一个可选的实施例中，对用于发送目标先导信息的目标响应消息的信道进行调整包括以下至少之一：
步骤S2062，提升目标信道的聚合等级值；
步骤S2064，降低目标信道的调制编码索引值；
步骤S2066，提高目标信道的信号发射功率。
在本实施例中，除上述调整方式之外，还可以对用于发送目标先导信息的目标响应消息的信道进行其它形式的调整，只要能够实现对信号随机接入的成功率的提高即可。
在一个可选的实施例中，将历史先导信息通过数据窗按照预设规则依次存储至第一数组列表的存储队列中包括：
步骤S20022，根据同一时刻获取的历史先导信息的信息量由小到大的顺序对历史先导信息进行排序；
步骤S20024，按照排序顺序获取指定数量的目标历史先导信息；
步骤S20026，将目标历史先导信息存储至第一数组列表的对应时刻的存储队列中。
在本实施例中，在获取到由不同终端在同一时刻发送的历史先导信息后，先将获取的历史先导信息有小到大进行排序，从而将靠近基站的终端以及干扰信息较少的历史先导信息筛选出来，进而减少数据处理量，节约能量。
随后，为减少虚检因素的影响及其他网络因素引起的接入异常，再从已经完成排序的历史先导信息中选取指定数量的历史先导信息，同时也能进一步减少能量的消耗；例如，取前20个进行后续处理，同时未处理的作为虚假丢弃，其中，即使有真实用户也可通过下次机会接入。
再将选取的历史先导信息依次存储至对应时刻的存储队列中，例如将选取的历史先导信息存储至第一数组列表的第一时刻的第一存储队列中。
在一个可选的实施例中，在将目标先导信息存储在目标区域之后，该方法还包括：
步骤S20242，按时间顺序滑移数据窗，以将第一数组列表中包括的第一时刻对应的历史先导信息的存储区域从第一数组列表中移除，并将第一数组列表中包括的剩余时刻对应的历史先导信息的存储区域与目标时刻的目标先导信息的存储区域确定为第二数组列表；
步骤S20244，将被移除的存储区中的信息进行清零以得到空闲存储区域；
步骤S20246，将在目标时刻之后获取的先导信息依次存储至空闲存储区域中。
在本实施例中，由于数据窗的长度不变，因而为保证存储的历史先导信息的实时性，需要进行滑窗动作，而沿时间顺序滑移数据窗时，位于第一数组列表中的最靠近时间起点的存储队列被移出第一数组列表，同时存储有新时刻的目标先导信息的存储队列则构成对数组列表中的历史先导信息的更新，同时再对被移除的存储区中的信息进行清零以得到空闲存储区域，从而能够有新的存储位置能够用于存储新的先导信息。
而在完成滑窗动作后，将第一数组列表中包括的剩余时刻对应的历史先导信息的存储区域与目标时刻的目标先导信息的存储区域确定为第二数组列表，从而保证存储的历史先导信息的实时性，避免因实时性低造成的误判。
由于存储空间的限制，因而在沿时间顺序滑动指定次数后，需要将数据窗重新滑动至初始位置，以重新进行数据存储。
在一个可选的实施例中，将历史先导信息通过数据窗按照预设规则依次存储至第一数组列表的存储队列中之前，该方法包括：
步骤S2000，以时间顺序为横轴，以发送目标先导信息的设备为纵轴，确定第一数组列表；
在确定第一数组列表的数据存储量满足存储条件的情况下，将目标先导信息与第一数组列表中存储的目标时刻接收到的历史先导信息依次进行比较包括：
步骤S20222，沿纵轴逐个将目标先导信息与第一数组列表中存储的目标时刻接收到的历史先导信息依次进行比较。
在本实施例中，在执行目标先导信息与历史先导信息之间的比较的过程中，先取一个目标先导信息，再将该目标先导信息依次与对应时刻的存储队列中的历史先导信息进行比较，在完成与对应时刻的存储队列的所有历史先导信息的比较后，再沿纵轴方向取出下一个目标先导信息，并将新取出的目标先导信息依次与对应时刻的存储队列中的历史先导信息进行比较，重复上述动作，直至所有的目标先导信息均完成比较。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到根据上述实施例的方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终 端设备(可以是手机，计算机，服务器，或者网络设备等)执行本发明各个实施例所述的方法。
在本实施例中还提供了一种随机接入装置，该装置用于实现上述实施例及优选实施方式，已经进行过说明的不再赘述。如以下所使用的，术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现，但是硬件，或者软件和硬件的组合的实现也是可能并被构想的。
图3是根据本发明实施例的一种随机接入装置的结构框图，如图3所示，该装置包括：
目标处理模块32，设置为对预先获取的目标先导信息进行目标处理以确定所述目标先导信息中包含的目标元素值；
信道调整模块34，设置为在确定目标先导信息的目标元素值符合目标条件的情况下，对用于发送目标先导信息的目标响应消息的目标信道进行调整；
信息发送模块36，设置为利用调整后的目标信道发送目标响应信息。
在一个可选的实施例中，该装置还包括：
历史存储模块302，设置为获取历史先导信息；将历史先导信息通过数据窗按照预设规则依次存储至第一数组列表的存储队列中；
目标处理模块32包括：
信息比较单元322，设置为在确定第一数组列表的数据存储量满足存储条件的情况下，将目标先导信息与第一数组列表中存储的目标时刻接收到的历史先导信息依次进行比较，其中，目标先导信息为在接收历史先导信息之后接收到的需要存储的先导信息；
信息存储单元324，设置为在基于比较结果确定出在目标时刻接收到的历史先导信息中存在第一元素值与目标先导信息的第一元素值相同的第一历史先导信息的情况下，将目标先导信息存储在目标区域；
目标确定单元326，设置为获取存储后的目标先导信息的第二元素值，以及基于第二元素值确定目标先导信息的目标元素值。
在一个可选的实施例中，目标确定单元326包括：
元素检测子单元3262，设置为检测存储后的目标先导信息的第二元素值；
第一判断子单元3264，设置为在第二元素值为门限值的情况下，判断目标先导信息的第三元素值和第四元素值是否满足第一目标条件；
元素处理子单元3266，设置为在目标先导信息的第三元素值和第四元素值满足第一目标条件的情况下，将目标先导信息的第五元素值加1以作为目标元素值。
在一个可选的实施例中，目标确定单元326还包括：
第二判断子单元3268，设置为在第二元素值为0的情况下，判断目标先导信息的 第三元素和第四元素是否满足第二目标条件，并在确定目标先导信息的第三元素和第四元素满足第二目标条件的情况下，将目标先导信息的第二元素值加1；
第三判断子单元32610，设置为在第二元素值为0与门限值之间的数值的情况下，判断目标先导信息的第三元素值和第四元素值是否满足第二目标条件；在目标先导信息的第三元素值和第四元素值满足第二目标条件的情况下，将目标先导信息的第二元素值加1。
在一个可选的实施例中，信息发送模块36包括以下至少之一：
聚合等级提升单元362，设置为提升目标信道的聚合等级值；
索引值降低单元364，设置为降低目标信道的调制编码索引值；
功率提升单元366，设置为提高目标信道的信号发射功率。
在一个可选的实施例中，历史存储模块302包括：
排序单元3022，设置为根据同一时刻获取的历史先导信息的信息量由小到大的顺序对历史先导信息进行排序；
历史信息采集单元3024，设置为按照排序顺序获取指定数量的目标历史先导信息；
历史存储单元3026，设置为将目标历史先导信息存储至第一数组列表的对应时刻的存储队列中。
在一个可选的实施例中，信息存储单元324包括：
滑窗子单元3242，设置为按时间顺序滑移数据窗，以将第一数组列表中包括的第一时刻对应的历史先导信息的存储区域从第一数组列表中移除，并将第一数组列表中包括的剩余时刻对应的历史先导信息的存储区域与目标时刻的目标先导信息的存储区域确定为第二数组列表；
清零子单元3244，设置为将被移除的存储区中的信息进行清零以得到空闲存储区域；
目标存储子3246，设置为将在目标时刻之后获取的先导信息依次存储至空闲存储区域中。
在一个可选的实施例中，历史存储模块302包括：
数组确定单元3022，设置为以时间顺序为横轴，以发送目标先导信息的设备为纵轴确定所述第一数组列表；
信息比较单元322包括：
遍历单元3224，设置为沿纵轴逐个将目标先导信息与第一数组列表中存储的目标时刻接收到的历史先导信息依次进行比较。
需要说明的是，上述各个模块是可以通过软件或硬件来实现的，对于后者，可以通过以下方式实现，但不限于此：上述模块均位于同一处理器中；或者，上述各个模块以任意组合的形式分别位于不同的处理器中。
下面结合具体实施例对本发明进行说明。
参照图4及图5，先提取MSG1包含的preambleIndex值、基站侧检测信息ta_preamblepower值，以及终端侧重传的行为信息。根据这三种信息设计存储单元信息数据结构如下：
typedef struct：
{
UInt8 preambleIndex；
UInt8 tavalue；
SInt16 preamblepower；
UInt8 ra_preamble_count；
UInt8 flag；
}
其中ra_preamble_count为检测重复次数，flag为触发新调度机制的元素值(对应图4中的步骤S401)。
随后生成如图6所示的二维数组列表结构，其中，纵轴表示基站侧每一TTI时刻(传输时间间隔)检测到的有效信息值，每一单元格存储前述单元信息结构。横轴代表时间列表，每一列代表一个TTI时刻，m值大小为一个MSG2(即RAR)检测窗长，最后一列为最新到达时刻检测到的信息(对应图4中的步骤S402)。
随后，先对每一TTI检测的preamble信息进行初始化信息筛选(对应图4中的步骤S403以及图5中的步骤S501)；其中，为减少虚检因素的影响及其他网络因素引起的接入异常，对检测信息数量进行最大值进行限制，限制规则可基于TA测量值从小到大排序，例如取前20个进行后续处理(未处理的作为虚假丢弃，即使有真实用户也可通过下次机会接入)。
再通过滑窗处理将初始筛选值存储在对应时刻的存储队列中，其中，滑窗内未填满时，按TTI时刻依序将获取到的历史先导信息存入第一数组列表(对应图4中的步骤S404以及图5中的步骤S502)。
当窗长内的存储队列的存储量达到最大值时，将新到时刻检测的目标先导信息包含的元素值依次按检测用户循环遍历(对应图5中的步骤S503和S504)，即依次对比滑窗内起始列(即0列)各元素值信息，比较是否有相同preambleIndex值，若相同，则依据起始列存目标先导信息(对应图4中的步骤S405)。
随后根据元素ra_preamble_count取值不同，基于不同规则采用不同的方式对相关元素值进行处理。(对应图4中的步骤S406以及对应图5中的步骤S505)
规则1：
ra_preamble_count取值为0时，按规则1进行处理。
比较新到时刻tavalue(new)是否在区间[tavalue(0)*2/3,tavalue(0)*4/3]之间，并判断preamblepower(new)是否在区间[preamblepower+powerstep*2/3,preamblepower+powerstep*4/3]之间。
其中，powerstep为RACH配置参数powerRampingStep值，若条件同时满足，则新到时刻ra_preamble_count值加1。
规则2：
ra_preamble_count取值为1、2时，按规则2进行处理。
比较新到时刻tavalue(new)是否在区间[tavalue(0)*2/3,tavalue(0)*4/3]，并判断preamblepower(new)是否在区间[preamblepower-powerstep/3，preamblepower+powerstep/3]之间，若条件同时满足，则新到时刻ra_preamble_count值加1。
规则3：
ra_preamble_count取值大于等于3时(其中，3为门限值，可根据无线环境适当调整)，比较新到时刻tavalue(new)是否在区间[tavalue(0)*2/3,tavalue(0)*4/3]，并判断preamblepower(new)是否在区间[preamblepower-powerstep/3，preamblepower+powerstep/3]之间。若同时满足，则将满足条件的存储单元信息元素flag置1。
随后，在目标先导信息完成比较后，删除队列索引0内的列元素，移动滑窗，此时队列1列更新为新列表的0列，新到时刻序列入队列列表结构(对应图4中的步骤S406)。
再依据上述提取的列表信息，调度时做如下策略判断处理过程(对应图4中的步骤S407以及对应图5中的步骤S506)：
(1)基站侧在分配新接入用户的MSG2(即RAR)资源信息前，首先查询新入队列元素，是否有flag为1元素值存在，若存在，则认为此终端用户存在下行链路异常导致的RAR检测失败场景，需要进一步处理。
(2)基站侧下行调度器在分配对应MSG2的PDCCH资源时，可以通过采用提升聚合等级值和降MCS的方式(同时需满足QPSK调制的限制条件)，另外可调整增大分配给该MSG2的PDCCH的发送功率。
(3)基站侧下行调度器在分配对应的MSG2业务资源时，需要调整降低对应下行业务信道的MCS值，同时增大发送功率，进而提升该调度时刻，RAR信息的健壮性，这样该终端侧接收信号功率及信噪比得以提升，解调性能得到改善，达到提升对应检测的概率目的，进而能够提升该类用户接入成功的概率。
本发明的实施例还提供了一种存储介质，该存储介质中存储有计算机程序，其中，该计算机程序被设置为运行时执行上述任一项方法实施例中的步骤。
在一个示例性实施例中，上述存储介质可以包括但不限于：U盘、只读存储器(Read-Only Memory，简称为ROM)、随机存取存储器(Random Access Memory，简称为RAM)、移动硬盘、磁碟或者光盘等各种可以存储计算机程序的介质。
本发明的实施例还提供了一种电子装置，包括存储器和处理器，该存储器中存储有计算机程序，该处理器被设置为运行计算机程序以执行上述任一项方法实施例中的步骤。
在一个示例性实施例中，上述电子装置还可以包括传输设备以及输入输出设备，其中，该传输设备和上述处理器连接，该输入输出设备和上述处理器连接。
本实施例中的具体示例可以参考上述实施例及示例性实施方式中所描述的示例，本实施例在此不再赘述。
显然，本领域的技术人员应该明白，上述的本发明的各模块或各步骤可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，并且在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤，或者将它们分别制作成各个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样，本发明不限制于任何特定的硬件和软件结合。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (11)

  1. 一种随机接入方法，包括：
    对预先获取的目标先导信息进行目标处理以确定所述目标先导信息中包含的目标元素值；
    在确定所述目标先导信息的目标元素值符合目标条件的情况下，对用于发送所述目标先导信息的目标响应消息的目标信道进行调整；
    利用调整后的目标信道发送所述目标响应信息。
  2. 根据权利要求1所述的方法，其中，
    在对预先获取的目标先导信息进行目标处理以确定所述目标先导信息中包含的目标元素值之前，所述方法还包括：
    获取历史先导信息；将所述历史先导信息通过数据窗按照预设规则依次存储至第一数组列表的存储队列中；
    所述对预先获取的先导信息进行目标处理以确定所述先导信息中包含的目标元素值包括：
    在确定所述第一数组列表的数据存储量满足存储条件的情况下，将所述目标先导信息与所述第一数组列表中存储的目标时刻接收到的历史先导信息依次进行比较，其中，所述目标先导信息为在接收所述历史先导信息之后接收到的需要存储的先导信息；
    在基于比较结果确定出在所述目标时刻接收到的历史先导信息中存在第一元素值与所述目标先导信息的第一元素值相同的第一历史先导信息的情况下，将所述目标先导信息存储在目标区域；
    获取存储后的所述目标先导信息的第二元素值，以及基于所述第二元素值确定所述目标先导信息的所述目标元素值。
  3. 根据权利要求2所述的方法，其中，获取存储后的所述目标先导信息的第二元素值，以及基于所述第二元素值确定所述目标先导信息的所述目标元素值包括：
    检测存储后的所述目标先导信息的所述第二元素值；
    在所述第二元素值为门限值的情况下，判断所述目标先导信息的第三元素值和第 四元素值是否满足第一目标条件；
    在所述目标先导信息的所述第三元素值和所述第四元素值满足所述第一目标条件的情况下，将所述目标先导信息的第五元素值加1以作为所述目标元素值。
  4. 根据权利要求3所述的方法，其中，在检测存储后的所述目标先导信息的所述第二元素值之后，所述方法还包括：
    在所述第二元素值为0的情况下，判断所述目标先导信息的所述第三元素和所述第四元素是否满足第二目标条件，并在确定所述目标先导信息的所述第三元素和所述第四元素满足所述第二目标条件的情况下，将所述目标先导信息的所述第二元素值加1；
    在所述第二元素值为0与门限值之间的数值的情况下，判断所述目标先导信息的所述第三元素值和所述第四元素值是否满足第二目标条件；在所述目标先导信息的所述第三元素值和所述第四元素值满足第二目标条件的情况下，将所述目标先导信息的所述第二元素值加1。
  5. 根据权利要求1所述的方法，其中，对用于发送所述目标先导信息的目标响应消息的信道进行调整包括以下至少之一：
    提升所述目标信道的聚合等级值；
    降低所述目标信道的调制编码索引值；
    提高所述目标信道的信号发射功率。
  6. 根据权利要求2所述的方法，其中，将所述历史先导信息通过数据窗按照预设规则依次存储至第一数组列表的存储队列中包括：
    根据同一时刻获取的所述历史先导信息的信息量由小到大的顺序对所述历史先导信息进行排序；
    按照排序顺序获取指定数量的目标历史先导信息；
    将所述目标历史先导信息存储至所述第一数组列表的对应时刻的存储队列中。
  7. 根据权利要求2所述的方法，其中，在将所述目标先导信息存储在目标区域之后，所述方法包括：
    按时间顺序滑移所述数据窗，以将所述第一数组列表中包括的第一时刻对应的历史先导信息的存储区域从所述第一数组列表中移除，并将所述第一数组列表中包括的剩余时刻对应的历史先导信息的存储区域与所述目标时刻的目标先导信息的存储区域确定为第二数组列表；
    将被移除的存储区中的信息进行清零以得到空闲存储区域；
    将在所述目标时刻之后获取的先导信息依次存储至所述空闲存储区域中。
  8. 根据权利要求1所述的方法，其中，所述将所述历史先导信息通过数据窗按照预设规则依次存储至第一数组列表的存储队列中之前，所述方法包括：
    以时间顺序为横轴，以发送目标先导信息的设备为纵轴确定所述第一数组列表；
    所述在确定所述第一数组列表的数据存储量满足存储条件的情况下，将所述目标先导信息与所述第一数组列表中存储的目标时刻接收到的历史先导信息依次进行比较包括：
    沿所述纵轴逐个将所述目标先导信息与所述第一数组列表中存储的目标时刻接收到的历史先导信息依次进行比较。
  9. 一种随机接入装置，包括：
    目标处理模块，设置为对预先获取的目标先导信息进行目标处理以确定所述目标先导信息中包含的目标元素值；
    信道调整模块，设置为在确定所述目标先导信息的目标元素值符合目标条件的情况下，对用于发送所述目标先导信息的目标响应消息的目标信道进行调整；
    信息发送模块，设置为利用调整后的目标信道发送所述目标响应信息。
  10. 一种存储介质，所述存储介质中存储有计算机程序，其中，所述计算机程序被设置为运行时执行所述权利要求1至8任一项中所述的方法。
  11. 一种电子装置，包括存储器和处理器，所述存储器中存储有计算机程序，所述处理器被设置为运行所述计算机程序以执行所述权利要求1至8任一项中所述的方法。
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