WO2022078281A1 - 前导序列的生成方法、装置及终端 - Google Patents

前导序列的生成方法、装置及终端 Download PDF

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Publication number
WO2022078281A1
WO2022078281A1 PCT/CN2021/123028 CN2021123028W WO2022078281A1 WO 2022078281 A1 WO2022078281 A1 WO 2022078281A1 CN 2021123028 W CN2021123028 W CN 2021123028W WO 2022078281 A1 WO2022078281 A1 WO 2022078281A1
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Prior art keywords
sequences
preamble
leading
value
equal
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English (en)
French (fr)
Inventor
洪琪
吴凯
李萍
李�根
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA

Definitions

  • the present application belongs to the field of communication technologies, and in particular relates to a method, an apparatus and a terminal for generating a preamble sequence.
  • the embodiments of the present application provide a method, an apparatus, and a terminal for generating a preamble sequence, which can solve the problem of duplication or shortage of available preamble sequences of adjacent cells in the prior art.
  • an embodiment of the present application provides a method for generating a preamble sequence, which is executed by a terminal, including:
  • N is an integer greater than or equal to 2
  • M is an integer greater than or equal to 1 and less than the first preset value
  • N*M is greater than or equal to the first preset value
  • an embodiment of the present application provides an apparatus for generating a preamble sequence, which is executed by a terminal, including:
  • the generating module is used to perform code division processing on the M preamble sequences by using the N orthogonal cover codes OCC to generate N*M preamble sequences;
  • N is an integer greater than or equal to 2
  • M is an integer greater than or equal to 1 and less than the first preset value
  • N*M is greater than or equal to the first preset value
  • a terminal in a third aspect, includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, when the program or instruction is executed by the processor.
  • a readable storage medium is provided, and a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method according to the first aspect are implemented.
  • a fifth aspect provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a network-side device program or instruction, implementing the method described in the first aspect. method described.
  • a computer program product is provided, the program product is stored in a non-volatile storage medium, the program product is executed by at least one processor to implement the method of the first aspect.
  • code division processing is performed on M preamble sequences to generate N*M preamble sequences, which can not only avoid adjacent cells from using the same preamble sequence, but also solve the problem of cell
  • the problem of insufficient available preamble sequences does not affect the physical random access channel process and the mapping between synchronization signal blocks and preamble sequences.
  • FIG. 1 shows a block diagram of a wireless communication system to which an embodiment of the present application can be applied
  • FIG. 2 shows a schematic diagram of steps of a method for generating a preamble sequence provided by an embodiment of the present application
  • FIG. 3 is a schematic structural diagram of an apparatus for generating a preamble sequence provided by an embodiment of the present application
  • FIG. 4 shows one of schematic structural diagrams of a terminal provided by an embodiment of the present application
  • FIG. 5 shows the second schematic structural diagram of a terminal provided by an embodiment of the present application.
  • first, second and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and distinguish between “first”, “second”, etc.
  • the objects are usually of one type, and the number of objects is not limited.
  • the first object may be one or more than one.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the associated objects are in an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced
  • LTE-A Long Term Evolution-Advanced
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • system and “network” in the embodiments of the present application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies.
  • NR New Radio
  • the following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the description below, although these techniques are also applicable to applications other than NR system applications, such as 6th generation ( 6th Generation , 6G) communication system.
  • 6th generation 6th Generation
  • FIG. 1 shows a block diagram of a wireless communication system to which the embodiments of the present application can be applied.
  • the wireless communication system includes a terminal 11 and a network-side device 12 .
  • the terminal 11 may also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital computer Assistant (Personal Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), mobile Internet device (Mobile Internet Device, MID), wearable device (Wearable Device) or vehicle-mounted device (VUE), pedestrian terminal (PUE) and other terminal-side devices, wearable devices include: bracelets, headphones, glasses, etc.
  • PDA Personal Digital Assistant
  • the network side device 12 may be a base station or a core network, wherein the base station may be referred to as a Node B, an evolved Node B, an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a basic service Set (Basic Service Set, BSS), Extended Service Set (Extended Service Set, ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN Access Point, WiFi Node, Send Transmitting Receiving Point (TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms.
  • the base station in the NR system is taken as an example, but the specific type of the base station is not limited.
  • an embodiment of the present application provides a method for generating a preamble sequence, which is executed by a terminal, including:
  • Step 201 using N orthogonal cover codes OCC, code division processing is performed on M preamble sequences to generate N*M preamble sequences;
  • N is an integer greater than or equal to 2
  • M is an integer greater than or equal to 1 and less than the first preset value
  • N*M is greater than or equal to the first preset value
  • the first preset value is a value of the number of currently supported preamble sequences, for example, the first preset value may be 64.
  • the M preamble sequences in the preamble sequences available to the cell are recombined by means of N OCCs, so as to obtain a value greater than or equal to The first preset number of preamble sequences.
  • the method further includes:
  • N*M is greater than the first preset value, the redundant preamble sequences are removed to obtain the first preset number of preamble sequences.
  • the M preamble sequences include: all or part of the preamble sequences available to the cell to be accessed by the terminal.
  • the indices of the M preamble sequences may be arranged according to the index cell of the available preamble sequences of the cell, and the indices may be discontinuous or continuous.
  • M is an integer less than or equal to 42, for example, M is equal to 32.
  • the first 32 preamble sequences of all preamble sequences, or the last 32 preamble sequences, or the middle 32 preamble sequences, or 32 preamble sequences can be selected according to a certain rule, or 32 preamble sequences can be randomly selected. , which is not specifically limited here.
  • the method further includes:
  • the first parameter at least one of the value of M and the value of N is determined; wherein, the first parameter includes at least one of the following:
  • Cell ID (cell ID);
  • SSB pattern Sync signal block pattern
  • SSB SCS Synchronization Signal Block Subcarrier Spacing
  • the method further includes:
  • the value of M is determined according to the role of the physical random access channel; wherein, the role of the physical random access channel includes at least one of the following:
  • BFR Beam Failure Recovery
  • SI request System Information Request
  • different functions of the physical random access channel correspond to different values of M.
  • M is equal to 32; when the physical random access channel is used for non-contention-based random access, M is equal to 38; not enumerated here.
  • the method further includes any one of the following:
  • the value of N is determined according to the mapping relationship between the value of M and the value of N and the value of M.
  • the value of M and the value of N can be inferred based on any one of them and the fixed mapping relationship.
  • the mapping relationship may be given by network configuration or predefined, which is not specifically limited herein. For example, if M*N ⁇ Q, then M ⁇ Q/N, or N ⁇ Q/M, where Q is the required number of preamble sequences (ie, the first preset value).
  • step 201 includes:
  • Each OCC is multiplied by the M preamble sequences to generate N*M preamble sequences.
  • N OCCs such as OCC1, OCC2...OCCN
  • M preamble sequences under each OCC.
  • the generated N*M preamble sequences are: OCC1 ⁇ preamble 1, preamble 2, ..., preamble M ⁇ , OCC2 ⁇ preamble 1, preamble 2, ..., preamble M ⁇ , ..., OCCN ⁇ preamble 1, preamble 2, ..., preamble M ⁇ .
  • the preamble sequence of the described removal of redundancy obtains the preamble sequence of the first preset value quantity, including:
  • the redundant preamble sequences are removed to obtain the preamble sequences of the first preset value; wherein, the network configuration or predefined rules include at least one of the following:
  • A5+A6 is equal to N*M minus one N of the first preset value
  • the first preset value is equal to 64
  • the sequence after recombining the preamble sequence with OCC is ⁇ preamble 1, preamble 3, preamble 4,...preamble 42, -preamble 1, -preamble 3, -preamble 4,...-preamble 42 ⁇ , where the first 32 are M preamble sequences generated by OCC1, and the last 32 are M preamble sequences generated by OCC2.
  • M and N can be given by the network configuration, or predefined by the protocol, or implicitly related to other fields (such as cell ID, SSB pattern, SSB SCS, etc.); the value of M or N can also be configured separately, and the other Values are inferred.
  • OCC1 ⁇ 1,1 ⁇
  • OCC2 ⁇ -1,-1 ⁇ .
  • the sequence after recombining the preamble sequence with OCC is ⁇ preamble 1, preamble 3, preamble 4,...preamble 42, -preamble 1, -preamble 3, -preamble 4,...-preamble 42 ⁇ , where the first 34 are M preamble sequences generated by OCC1, and the last 34 are M preamble sequences generated by OCC2.
  • M and N can be given by the network configuration, or predefined by the protocol, or implicitly related to other fields (such as cell ID, SSB pattern, SSB SCS, etc.); the value of M or N can also be configured separately, and the other Values are inferred.
  • code division processing is performed on M preamble sequences to generate N*M preamble sequences, which can not only avoid adjacent cells from using the same preamble sequence, but also solve the problem of cell
  • the problem of insufficient available preamble sequences does not affect the physical random access channel process and the mapping between synchronization signal blocks and preamble sequences.
  • the execution subject may be a device for generating a preamble sequence, or a control module in the device for generating a preamble sequence for executing the method for generating a loaded preamble sequence.
  • a method for generating a preamble sequence performed by a device for generating a preamble sequence is used as an example to describe the device for generating a preamble sequence provided by the embodiment of the present application.
  • an embodiment of the present application further provides an apparatus 300 for generating a preamble sequence, which is executed by a terminal and includes:
  • a generating module 301 is configured to perform code division processing on the M preamble sequences by using the N orthogonal cover codes OCC to generate N*M preamble sequences;
  • N is an integer greater than or equal to 2
  • M is an integer greater than or equal to 1 and less than the first preset value
  • N*M is greater than or equal to the first preset value
  • the device further includes:
  • a removal module configured to remove redundant preamble sequences to obtain preamble sequences of the first preset value number if N*M is greater than the first preset value.
  • the M preamble sequences include: all or part of the preamble sequences available to the cell to be accessed by the terminal.
  • the device further includes:
  • the first determination module is configured to determine at least one of the value of M and the value of N according to the first parameter; wherein, the first parameter includes at least one of the following:
  • the device further includes:
  • the second determination module is configured to determine the value of M according to the role of the physical random access channel; wherein the role of the physical random access channel includes at least one of the following:
  • the device further includes any one of the following:
  • the third determination module is used to determine the value of M according to the mapping relationship between the value of M and the value of N and the value of N;
  • the fourth determination module is configured to determine the value of N according to the mapping relationship between the value of M and the value of N and the value of M.
  • the generating module includes:
  • a generating submodule is used to multiply each OCC with the M preamble sequences to generate N*M preamble sequences.
  • the removing module includes:
  • the removal submodule is used for removing redundant preamble sequences to obtain preamble sequences of the first preset value number according to network configuration or predefined rules; wherein, network configuration or predefined rules include at least one of the following:
  • A5+A6 is equal to N*M minus one N of the first preset value
  • code division processing is performed on M preamble sequences to generate N*M preamble sequences, which can not only avoid adjacent cells from using the same preamble sequence, but also solve the problem of cell
  • the problem of insufficient available preamble sequences does not affect the physical random access channel process and the mapping between synchronization signal blocks and preamble sequences.
  • the device for generating a preamble sequence is a device capable of executing the above-mentioned method for generating a preamble sequence, and all the embodiments of the above-mentioned method for generating a preamble sequence are applicable to the device, and can achieve the same or similar beneficial effects.
  • the apparatus for generating the preamble sequence in this embodiment of the present application may be an apparatus, or may be a component, an integrated circuit, or a chip in a terminal.
  • the apparatus may be a mobile electronic device or a non-mobile electronic device.
  • the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palmtop computer, an in-vehicle electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (personal digital assistant).
  • UMPC ultra-mobile personal computer
  • netbook or a personal digital assistant
  • non-mobile electronic devices can be servers, network attached storage (Network Attached Storage, NAS), personal computer (personal computer, PC), television (television, TV), teller machine or self-service machine, etc., this application Examples are not specifically limited.
  • Network Attached Storage NAS
  • personal computer personal computer, PC
  • television television
  • teller machine or self-service machine etc.
  • the apparatus for generating the preamble sequence in the embodiment of the present application may be an apparatus having an operating system.
  • the operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.
  • the apparatus for generating a preamble sequence provided in this embodiment of the present application can implement each process implemented by the method embodiments in FIG. 1 to FIG. 2 , and to avoid repetition, details are not described here.
  • an embodiment of the present application further provides a terminal 400, including a processor 401, a memory 402, a program or instruction stored in the memory 402 and executable on the processor 401, the When the program or the instruction is executed by the processor 401, each process of the above-mentioned embodiment of the method for generating the preamble sequence is implemented, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.
  • FIG. 5 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.
  • the terminal 500 includes but is not limited to: a radio frequency unit 501, a network module 502, an audio output unit 503, an input unit 504, a sensor 505, a display unit 506, a user input unit 507, an interface unit 508, a memory 509, a processor 510 and other components .
  • the terminal 500 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 510 through a power management system, so as to manage charging, discharging, and power consumption through the power management system management and other functions.
  • a power source such as a battery
  • the terminal structure shown in FIG. 5 does not constitute a limitation on the terminal, and the terminal may include more or less components than shown, or combine some components, or arrange different components, which will not be repeated here.
  • the input unit 504 may include a graphics processor (Graphics Processing Unit, GPU) 5041 and a microphone 5042. Such as camera) to obtain still pictures or video image data for processing.
  • the display unit 506 may include a display panel 5061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 507 includes a touch panel 5071 and other input devices 5072 .
  • the touch panel 5071 is also called a touch screen.
  • the touch panel 5071 may include two parts, a touch detection device and a touch controller.
  • Other input devices 5072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be described herein again.
  • the radio frequency unit 501 receives the downlink data from the network side device, and then processes it to the processor 510; in addition, sends the uplink data to the network side device.
  • the radio frequency unit 501 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • Memory 509 may be used to store software programs or instructions as well as various data.
  • the memory 509 may mainly include a stored program or instruction area and a storage data area, wherein the stored program or instruction area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.) and the like.
  • the memory 509 may include a high-speed random access memory, and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • ROM Read-Only Memory
  • PROM programmable read-only memory
  • PROM erasable programmable read-only memory
  • Erasable PROM Erasable PROM
  • EPROM electrically erasable programmable read-only memory
  • EEPROM electrically erasable programmable read-only memory
  • flash memory for example at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
  • the processor 510 may include one or more processing units; optionally, the processor 510 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, application programs or instructions, etc., Modem processors mainly deal with wireless communications, such as baseband processors. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 510.
  • the processor 510 is configured to perform code division processing on the M preamble sequences by using the N orthogonal cover codes OCC to generate N*M preamble sequences;
  • N is an integer greater than or equal to 2
  • M is an integer greater than or equal to 1 and less than the first preset value
  • N*M is greater than or equal to the first preset value
  • code division processing is performed on M preamble sequences to generate N*M preamble sequences, which can not only avoid adjacent cells from using the same preamble sequence, but also solve the problem of cell
  • the problem of insufficient available preamble sequences does not affect the physical random access channel process and the mapping between synchronization signal blocks and preamble sequences.
  • the terminal provided by the embodiment of the present application is a terminal capable of executing the above-mentioned method for generating a preamble sequence, and all the embodiments of the above-mentioned method for generating a preamble sequence are applicable to the terminal, and can achieve the same or similar beneficial effects. Effect.
  • Embodiments of the present application further provide a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, each process of the foregoing method for generating a preamble sequence is implemented, and can To achieve the same technical effect, in order to avoid repetition, details are not repeated here.
  • the processor is the processor in the electronic device described in the foregoing embodiments.
  • the readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.
  • An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the above-mentioned method for generating a preamble sequence In order to avoid repetition, the details are not repeated here.
  • the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip, or the like.
  • the method of the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is better implementation.
  • the technical solution of the present application can be embodied in the form of a software product in essence or in a part that contributes to the prior art, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of this application.
  • a storage medium such as ROM/RAM, magnetic disk, CD-ROM

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Abstract

本申请公开了一种前导序列的生成方法、装置及终端,该方法包括:利用N个正交覆盖码OCC,对M个前导序列进行码分处理,生成N*M个前导序列;其中,N为大于或者等于2的整数,M为大于或者等于1且小于第一预设值的整数,N*M大于或者等于第一预设值。

Description

前导序列的生成方法、装置及终端
相关申请的交叉引用
本申请主张在2020年10月12日在中国提交的中国专利申请号No.202011085536.X的优先权,其全部内容通过引用包含于此。
技术领域
本申请属于通信技术领域,具体涉及一种前导序列的生成方法、装置及终端。
背景技术
在B52.6GHz系统中,如果使用较大的子载波间隔(Sub-Carrier Space,SCS)等级,比如480KHz,960KHz等,在需要满足一定的覆盖范围的情况下,很有可能导致循环移位N cs的值过大,从而需要很多的根序列去生成64个前导(preamble)序列。例:对于139的序列,如果N cs的值大于69,则对于每个根序列无法做循环移位,因此需要64个根序列用于生成64个preamble序列。在这种情况下,相邻的几个小区之间可能使用了相同的根序列,从而导致在小区边缘的用户无法判定是哪个小区发送的preamble序列,进而接入到错误的小区。
基于上述问题,一个解决方案是在相邻的小区发送不同的preamble序列(避免相邻小区之间的preamble序列重复),例如使用139的preamble序列,总共三个小区,则每个小区可用的preamble序列可能只有139/3=46个。这样该方案会导致每个小区可用的preamble序列不足64个的问题。
发明内容
本申请实施例提供一种前导序列的生成方法、装置及终端,能够解决现有技术中相邻小区的可用前导序列重复或不足的问题。
第一方面,本申请实施例提供了一种前导序列的生成方法,由终端执行, 包括:
利用N个正交覆盖码OCC,对M个前导序列进行码分处理,生成N*M个前导序列;
其中,N为大于或者等于2的整数,M为大于或者等于1且小于第一预设值的整数,N*M大于或者等于第一预设值。
第二方面,本申请实施例提供了一种前导序列的生成装置,由终端执行,包括:
生成模块,用于利用N个正交覆盖码OCC,对M个前导序列进行码分处理,生成N*M个前导序列;
其中,N为大于或者等于2的整数,M为大于或者等于1且小于第一预设值的整数,N*M大于或者等于第一预设值。
第三方面,提供了一种终端,该终端包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如第一方面所述的方法的步骤。
第四方面,提供了一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如第一方面所述的方法的步骤。
第五方面,提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行网络侧设备程序或指令,实现如第一方面所述的方法。
第六方面,提供了一种计算机程序产品,所述程序产品被存储在非易失的存储介质中,所述程序产品被至少一个处理器执行以实现如第一方面所述的方法。
在本申请实施例中,利用N个正交覆盖码OCC,对M个前导序列进行码分处理,生成N*M个前导序列,既能够避免相邻小区使用相同的前导序列,又能够解决小区可用前导序列不足的问题,且不影响物理随机接入信道流程以及同步信号块与前导序列的映射。
附图说明
图1表示本申请实施例可应用的一种无线通信系统的框图;
图2表示本申请实施例提供的前导序列的生成方法的步骤示意图;
图3表示本申请实施例提供的前导序列的生成装置的结构示意图;
图4表示本申请实施例提供的终端的结构示意图之一;
图5表示本申请实施例提供的终端的结构示意图之二。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚地描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员所获得的所有其他实施例,都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象,而不用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换,以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施,且“第一”、“第二”等所区分的对象通常为一类,并不限定对象的个数,例如第一对象可以是一个,也可以是多个。此外,说明书以及权利要求中“和/或”表示所连接对象的至少其中之一,字符“/”,一般表示前后关联对象是一种“或”的关系。
值得指出的是,本申请实施例所描述的技术不限于长期演进型(Long Term Evolution,LTE)/LTE的演进(LTE-Advanced,LTE-A)系统,还可用于其他无线通信系统,诸如码分多址(Code Division Multiple Access,CDMA)、时分多址(Time Division Multiple Access,TDMA)、频分多址(Frequency Division Multiple Access,FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access,OFDMA)、单载波频分多址(Single-carrier Frequency-Division Multiple Access,SC-FDMA)和其他系统。本申请实施例中的术语“系统”和“网络”常被可互换地使用,所描述的技术既可用于以 上提及的系统和无线电技术,也可用于其他系统和无线电技术。然而,以下描述出于示例目的描述了新空口(New Radio,NR)系统,并且在以下大部分描述中使用NR术语,尽管这些技术也可应用于NR系统应用以外的应用,如第6代(6 th Generation,6G)通信系统。
图1示出本申请实施例可应用的一种无线通信系统的框图。无线通信系统包括终端11和网络侧设备12。其中,终端11也可以称作终端设备或者用户终端(User Equipment,UE),终端11可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)或称为笔记本电脑、个人数字助理(Personal Digital Assistant,PDA)、掌上电脑、上网本、超级移动个人计算机(ultra-mobile personal computer,UMPC)、移动上网装置(Mobile Internet Device,MID)、可穿戴式设备(Wearable Device)或车载设备(VUE)、行人终端(PUE)等终端侧设备,可穿戴式设备包括:手环、耳机、眼镜等。需要说明的是,在本申请实施例并不限定终端11的具体类型。网络侧设备12可以是基站或核心网,其中,基站可被称为节点B、演进节点B、接入点、基收发机站(Base Transceiver Station,BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set,BSS)、扩展服务集(Extended Service Set,ESS)、B节点、演进型B节点(eNB)、家用B节点、家用演进型B节点、WLAN接入点、WiFi节点、发送接收点(Transmitting Receiving Point,TRP)或所述领域中其他某个合适的术语,只要达到相同的技术效果,所述基站不限于特定技术词汇,需要说明的是,在本申请实施例中仅以NR系统中的基站为例,但是并不限定基站的具体类型。
下面结合附图,通过具体的实施例及其应用场景对本申请实施例提供的前导序列的生成方法进行详细地说明。
如图2所示,本申请实施例提供一种前导(preamble)序列的生成方法,由终端执行,包括:
步骤201,利用N个正交覆盖码OCC,对M个前导序列进行码分处理,生成N*M个前导序列;
其中,N为大于或者等于2的整数,M为大于或者等于1且小于第一预设值的整数,N*M大于或者等于第一预设值。
可选地,第一预设值为现有支持的前导序列的数量的取值,例如第一预设值可以为64。
换言之,在小区可用的前导序列的数量小于当前支持的第一预设值的情况下,利用N个OCC的方式对小区可用的前导序列中的M个前导序列进行重新组合,从而得到大于或者等于第一预设值数量的前导序列。
作为一个可选实施例,所述方法还包括:
若N*M大于所述第一预设值,去除冗余的前导序列得到第一预设值数量的前导序列。
可选地,所述M个前导序列包括:所述终端的待接入小区可用的全部或者部分前导序列。该M个前导序列的索引可以按照小区可用前导序列的索引小区排列,该索引可以不连续也可以连续。
例如,终端的待接入小区可用的全部前导序列的数量为42,则M为小于或者等于42的整数,如M等于32。再例如,可以取全部前导序列的前32个前导序列,或者,后32个前导序列,或者,中间32个前导序列,或者按照某一个规则选择32个前导序列,或者,随机选择32个前导序列,在此不做具体限定。
作为另一个可选实施例,所述方法还包括:
根据第一参数,确定M的取值以及N的取值中的至少一项;其中,第一参数包括下述至少之一:
网络配置参数;
预定义参数;
小区标识(cell ID);
同步信号块模式(SSB pattern);
同步信号块子载波间隔(SSB SCS)。
作为又一个可选实施例,所述方法还包括:
根据物理随机接入信道的作用,确定M的取值;其中,物理随机接入信道的作用包括下述至少之一:
基于竞争的随机接入;
基于非竞争的随机接入;
2步随机接入(2step RACH);
波束失败恢复(Beam Failure Recovery,BFR);
系统信息请求(SI request)。
例如,物理随机接入信道的不同作用对应不同的M的取值。当物理随机接入信道用于基于竞争的随机接入,则M等于32;当物理随机接入信道用于基于非竞争的随机接入,则M等于38;在此不一一枚举。
作为又一个可选实施例,所述方法还包括下述任意一项:
根据M的取值和N的取值之间的映射关系以及N的取值,确定M的取值;
根据M的取值和N的取值之间的映射关系以及M的取值,确定N的取值。
换言之,M的取值和N的取值,可以基于其中的任意一项以及固定的映射关系去推断出另一个取值。该映射关系可以由网络配置或者预定义给出,在此不做具体限定。例如,M*N≥Q,则M≥Q/N,或者N≥Q/M,其中Q为所需要达到的preamble序列个数(即第一预设值)。
作为另一个可选实施例,步骤201包括:
利用每个OCC分别与所述M个前导序列相乘,生成N*M个前导序列。
例如,对N个OCC进行编号,如OCC1,OCC2…OCCN,然后按照每个OCC下的M个preamble序列进行编号。如生成的N*M个前导序列分别为:OCC1{preamble 1,preamble 2,…,preamble M},OCC2{preamble 1,preamble 2,…,preamble M},…,OCCN{preamble 1,preamble 2,…,preamble M}。
作为又一个可选实施例,所述去除冗余的前导序列得到第一预设值数量 的前导序列,包括:
根据网络配置或预定义的规则,去除冗余的前导序列得到第一预设值数量的前导序列;其中,网络配置或预定义的规则包括下述至少之一:
去除N*M个前导序列的前A1个前导序列;其中,A1等于N*M减去第一预设值;
去除N*M个前导序列的后A1个前导序列;
去除N*M个前导序列的前A2个前导序列和后A3个前导序列;其中,A2+A3等于N*M减去第一预设值;
去除每个OCC生成的前导序列的前A4个前导序列;其中,A4等于N*M减去第一预设值的N分之一;
去除每个OCC生成的前导序列的后A4个前导序列;
去除每个OCC生成的前导序列的前A5个前导序列和后A6个前导序列;其中,A5+A6等于N*M减去第一预设值的N分之一;
去除至少一个OCC生成的前导序列的后A7个前导序列,并去除至少一个OCC生成的前导序列的前A8个前导序列;其中,各个A7和各个A8之和等于N*M减去第一预设值。例如,2个OCC(即N=2),M=34,第一预设值等于64,则OCC处理后得到68(N*M)个preamble序列,需要去除4个preamble序列。可以去除第一个OCC的最后2个preamble序列(即A7=2),以及第二个OCC的最前面2个preamble序列(即A8=2),A7+A8=68-64。再例如,3个OCC,M=23,第一预设值等于64,则OCC处理后得到69个preamble序列,需要去除5个preamble序列,可以去除第一个OCC的最后2个preamble序列(即一个A7=2),第二个OCC的最前面1个preamble序列(即一个A8=2),第三个OCC的最前面1个preamble序列(即另一个A8=1),则2个A7和2个A8之和等于5。
示例一
假设小区可用的preamble序列为42个,即Q=42<64(第一预设值),则选取Q中的M个preamble序列,假设M=32,该M个序列区可用的preamble 序列的index大小排列,即M={preamble 1,preamble 3,preamble 4,…preamble 42},共32个。此时,可用两组OCC作用于该M个preamble序列上,即N=2。假设OCC1={1,1},OCC2={-1,-1}。则按照规则,对添加OCC的preamble序列重新组合后的序列为{preamble 1,preamble 3,preamble 4,…preamble 42,-preamble 1,-preamble 3,-preamble 4,…-preamble 42},其中前32个为OCC1产生的M个preamble序列,后32个为OCC2产生的M个preamble序列。
其中,其中M和N可以由网络配置,或者协议预定义给出,或者与其他域隐式相关(例如cell ID,SSB pattern,SSB SCS等);也可以单独配置M或者N的值,另外一个值通过推断得出。如由网络侧配置M=32,由于总共需要64个preamble,则可默认N≥2(一般取2,不排除取大于2的值);若网络侧配置M=16,由于总共需要64个preamble,则可默认N≥4(一般取4,不排除取大于4的值);若网络侧配置N=2,由于总共需要64个preamble,则可默认M≥32(一般取32,不排除取大于32的值);若网络侧配置N=4,由于总共需要64个preamble,则可默认M≥16的任意值。
示例二
假设小区可用的preamble序列为42个,即Q=42<64(第一预设值)。则选取Q中的M个preamble序列,假设M=34,该M个序列区可用的preamble序列的index大小排列,即M={preamble 1,preamble 3,preamble 4,…preamble 42},共34个。此时,可用两组OCC作用于该M个序列上,即N=2。假设OCC1={1,1},OCC2={-1,-1}。则按照规则,对添加OCC的preamble序列重新组合后的序列为{preamble 1,preamble 3,preamble 4,…preamble 42,-preamble 1,-preamble 3,-preamble 4,…-preamble 42},其中前34为OCC1产生的M个preamble序列,后34个为OCC2产生的M个preamble序列。此时,总共生成了68个preamble,而我们只需要64个preamble序列,因此可以去除其中的4个,即(M*N-Q)=(34*2-64)=4,两个可选方案可用于去除其中的4个preamble序列。例如,方案1,将重新组合后的序列的开始 或者最后4个去除;方案2,将每个OCC产生的M个序列中,去除其中开始或者后面的两个,即(M*N-Q)/N=(34*2-64)/2。
其中,其中M和N可以由网络配置,或者协议预定义给出,或者与其他域隐式相关(例如cell ID,SSB pattern,SSB SCS等);也可以单独配置M或者N的值,另外一个值通过推断得出。如由网络侧配置M=34,由于总共需要64个preamble序列,则可默认N≥2(一般取2,不排除取大于2的值);若网络侧配置M=18,由于总共需要64个preamble序列,则可默认N≥4(一般取4,不排除取大于4的值);若网络侧配置N=2,由于总共需要64个preamble序列,则可默认M≥32中的任意值(在这里可选取M=34);若网络侧配置N=4,由于总共需要64个preamble序列,则可默认M≥16的任意值(在这里可选取M=34)。
在本申请实施例中,利用N个正交覆盖码OCC,对M个前导序列进行码分处理,生成N*M个前导序列,既能够避免相邻小区使用相同的前导序列,又能够解决小区可用前导序列不足的问题,且不影响物理随机接入信道流程以及同步信号块与前导序列的映射。
需要说明的是,本申请实施例提供的前导序列的生成方法,执行主体可以为前导序列的生成装置,或者该前导序列的生成装置中的用于执行加载前导序列的生成方法的控制模块。本申请实施例中以前导序列的生成装置执行前导序列的生成方法为例,说明本申请实施例提供的前导序列的生成装置。
如图3所示,本申请实施例还提供一种前导序列的生成装置300,由终端执行,包括:
生成模块301,用于利用N个正交覆盖码OCC,对M个前导序列进行码分处理,生成N*M个前导序列;
其中,N为大于或者等于2的整数,M为大于或者等于1且小于第一预设值的整数,N*M大于或者等于第一预设值。
作为一个可选实施例,所述装置还包括:
去除模块,用于若N*M大于所述第一预设值,去除冗余的前导序列得到 第一预设值数量的前导序列。
作为一个可选实施例,所述M个前导序列包括:所述终端的待接入小区可用的全部或者部分前导序列。
作为一个可选实施例,所述装置还包括:
第一确定模块,用于根据第一参数,确定M的取值以及N的取值中的至少一项;其中,第一参数包括下述至少之一:
网络配置参数;
预定义参数;
小区标识;
同步信号块模式;
同步信号块子载波间隔。
作为一个可选实施例,所述装置还包括:
第二确定模块,用于根据物理随机接入信道的作用,确定M的取值;其中,物理随机接入信道的作用包括下述至少之一:
基于竞争的随机接入;
基于非竞争的随机接入;
2步随机接入;
波束失败恢复;
系统信息请求。
作为一个可选实施例,所述装置还包括下述任意一项:
第三确定模块,用于根据M的取值和N的取值之间的映射关系以及N的取值,确定M的取值;
第四确定模块,用于根据M的取值和N的取值之间的映射关系以及M的取值,确定N的取值。
作为一个可选实施例,所述生成模块包括:
生成子模块,用于利用每个OCC分别与所述M个前导序列相乘,生成N*M个前导序列。
作为一个可选实施例,所述去除模块包括:
去除子模块,用于根据网络配置或预定义的规则,去除冗余的前导序列得到第一预设值数量的前导序列;其中,网络配置或预定义的规则包括下述至少之一:
去除N*M个前导序列的前A1个前导序列;其中,A1等于N*M减去第一预设值;
去除N*M个前导序列的后A1个前导序列;
去除N*M个前导序列的前A2个前导序列和后A3个前导序列;其中,A2+A3等于N*M减去第一预设值;
去除每个OCC生成的前导序列的前A4个前导序列;其中,A4等于N*M减去第一预设值的N分之一;
去除每个OCC生成的前导序列的后A4个前导序列;
去除每个OCC生成的前导序列的前A5个前导序列和后A6个前导序列;其中,A5+A6等于N*M减去第一预设值的N分之一;
去除至少一个OCC生成的前导序列的后A7个前导序列,并去除至少一个OCC生成的前导序列的前A8个前导序列;其中,各个A7和各个A8之和等于N*M减去第一预设值。
在本申请实施例中,利用N个正交覆盖码OCC,对M个前导序列进行码分处理,生成N*M个前导序列,既能够避免相邻小区使用相同的前导序列,又能够解决小区可用前导序列不足的问题,且不影响物理随机接入信道流程以及同步信号块与前导序列的映射。
需要说明的是,本申请实施例提供的前导序列的生成装置是能够执行上述前导序列的生成方法的装置,则上述前导序列的生成方法的所有实施例均适用于该装置,且均能达到相同或相似的有益效果。
本申请实施例中的前导序列的生成装置可以是装置,也可以是终端中的部件、集成电路、或芯片。该装置可以是移动电子设备,也可以为非移动电子设备。示例性的,移动电子设备可以为手机、平板电脑、笔记本电脑、掌 上电脑、车载电子设备、可穿戴设备、超级移动个人计算机(ultra-mobile personal computer,UMPC)、上网本或者个人数字助理(personal digital assistant,PDA)等,非移动电子设备可以为服务器、网络附属存储器(Network Attached Storage,NAS)、个人计算机(personal computer,PC)、电视机(television,TV)、柜员机或者自助机等,本申请实施例不作具体限定。
本申请实施例中的前导序列的生成装置可以为具有操作系统的装置。该操作系统可以为安卓(Android)操作系统,可以为ios操作系统,还可以为其他可能的操作系统,本申请实施例不作具体限定。
本申请实施例提供的前导序列的生成装置能够实现图1至图2的方法实施例实现的各个过程,为避免重复,这里不再赘述。
可选的,如图4所示,本申请实施例还提供一种终端400,包括处理器401,存储器402,存储在存储器402上并可在所述处理器401上运行的程序或指令,该程序或指令被处理器401执行时实现上述前导序列的生成方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
图5为实现本申请实施例的一种终端的硬件结构示意图。
该终端500包括但不限于:射频单元501、网络模块502、音频输出单元503、输入单元504、传感器505、显示单元506、用户输入单元507、接口单元508、存储器509、以及处理器510等部件。
本领域技术人员可以理解,终端500还可以包括给各个部件供电的电源(比如电池),电源可以通过电源管理系统与处理器510逻辑相连,从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。图5中示出的终端结构并不构成对终端的限定,终端可以包括比图示更多或更少的部件,或者组合某些部件,或者不同的部件布置,在此不再赘述。
应理解的是,本申请实施例中,输入单元504可以包括图形处理器(Graphics Processing Unit,GPU)5041和麦克风5042,图形处理器5041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元506可包括显示面板5061,可以 采用液晶显示器、有机发光二极管等形式来配置显示面板5061。用户输入单元507包括触控面板5071以及其他输入设备5072。触控面板5071,也称为触摸屏。触控面板5071可包括触摸检测装置和触摸控制器两个部分。其他输入设备5072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆,在此不再赘述。
本申请实施例中,射频单元501将来自网络侧设备的下行数据接收后,给处理器510处理;另外,将上行的数据发送给网络侧设备。通常,射频单元501包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。
存储器509可用于存储软件程序或指令以及各种数据。存储器509可主要包括存储程序或指令区和存储数据区,其中,存储程序或指令区可存储操作系统、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外,存储器509可以包括高速随机存取存储器,还可以包括非易失性存储器,其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。
处理器510可包括一个或多个处理单元;可选的,处理器510可集成应用处理器和调制解调处理器,其中,应用处理器主要处理操作系统、用户界面和应用程序或指令等,调制解调处理器主要处理无线通信,如基带处理器。可以理解的是,上述调制解调处理器也可以不集成到处理器510中。
其中,处理器510,用于利用N个正交覆盖码OCC,对M个前导序列进行码分处理,生成N*M个前导序列;
其中,N为大于或者等于2的整数,M为大于或者等于1且小于第一预设值的整数,N*M大于或者等于第一预设值。
在本申请实施例中,利用N个正交覆盖码OCC,对M个前导序列进行 码分处理,生成N*M个前导序列,既能够避免相邻小区使用相同的前导序列,又能够解决小区可用前导序列不足的问题,且不影响物理随机接入信道流程以及同步信号块与前导序列的映射。
需要说明的是,本申请实施例提供的终端是能够执行上述前导序列的生成方法的终端,则上述前导序列的生成方法的所有实施例均适用于该终端,且均能达到相同或相似的有益效果。
本申请实施例还提供一种可读存储介质,所述可读存储介质上存储有程序或指令,该程序或指令被处理器执行时实现上述前导序列的生成方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
其中,所述处理器为上述实施例中所述的电子设备中的处理器。所述可读存储介质,包括计算机可读存储介质,如计算机只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等。
本申请实施例另提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现上述前导序列的生成方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
应理解,本申请实施例提到的芯片还可以称为系统级芯片、系统芯片、芯片系统或片上系统芯片等。
需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外,需要指出的是,本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能,还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能,例 如,可以按不同于所描述的次序来执行所描述的方法,并且还可以添加、省去、或组合各种步骤。另外,参照某些示例所描述的特征可在其他示例中被组合。
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上述实施例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,本申请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(可以是手机,计算机,服务器,空调器,或者网络设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述,但是本申请并不局限于上述的具体实施方式,上述的具体实施方式仅仅是示意性的,而不是限制性的,本领域的普通技术人员在本申请的启示下,在不脱离本申请宗旨和权利要求所保护的范围情况下,还可做出很多形式,均属于本申请的保护之内。

Claims (20)

  1. 一种前导序列的生成方法,由终端执行,包括:
    利用N个正交覆盖码OCC,对M个前导序列进行码分处理,生成N*M个前导序列;
    其中,N为大于或者等于2的整数,M为大于或者等于1且小于第一预设值的整数,N*M大于或者等于第一预设值。
  2. 根据权利要求1所述的方法,其中,所述方法还包括:
    若N*M大于所述第一预设值,去除冗余的前导序列得到第一预设值数量的前导序列。
  3. 根据权利要求1所述的方法,其中,所述M个前导序列包括:所述终端的待接入小区可用的全部或者部分前导序列。
  4. 根据权利要求1所述的方法,其中,所述方法还包括:
    根据第一参数,确定M的取值以及N的取值中的至少一项;其中,第一参数包括下述至少之一:
    网络配置参数;
    预定义参数;
    小区标识;
    同步信号块模式;
    同步信号块子载波间隔。
  5. 根据权利要求1所述的方法,其中,所述方法还包括:
    根据物理随机接入信道的作用,确定M的取值;其中,物理随机接入信道的作用包括下述至少之一:
    基于竞争的随机接入;
    基于非竞争的随机接入;
    2步随机接入;
    波束失败恢复;
    系统信息请求。
  6. 根据权利要求1所述的方法,其中,所述方法还包括下述任意一项:
    根据M的取值和N的取值之间的映射关系以及N的取值,确定M的取值;
    根据M的取值和N的取值之间的映射关系以及M的取值,确定N的取值。
  7. 根据权利要求1所述的方法,其中,利用N个正交覆盖码OCC,对M个前导序列进行码分处理,生成N*M个前导序列,包括:
    利用每个OCC分别与所述M个前导序列相乘,生成N*M个前导序列。
  8. 根据权利要求2所述的方法,其中,所述去除冗余的前导序列得到第一预设值数量的前导序列,包括:
    根据网络配置或预定义的规则,去除冗余的前导序列得到第一预设值数量的前导序列;其中,网络配置或预定义的规则包括下述至少之一:
    去除N*M个前导序列的前A1个前导序列;其中,A1等于N*M减去第一预设值;
    去除N*M个前导序列的后A1个前导序列;
    去除N*M个前导序列的前A2个前导序列和后A3个前导序列;其中,A2+A3等于N*M减去第一预设值;
    去除每个OCC生成的前导序列的前A4个前导序列;其中,A4等于N*M减去第一预设值的N分之一;
    去除每个OCC生成的前导序列的后A4个前导序列;
    去除每个OCC生成的前导序列的前A5个前导序列和后A6个前导序列;其中,A5+A6等于N*M减去第一预设值的N分之一;
    去除至少一个OCC生成的前导序列的后A7个前导序列,并去除至少一个OCC生成的前导序列的前A8个前导序列;其中,各个A7和各个A8之和等于N*M减去第一预设值。
  9. 一种前导序列的生成装置,由终端执行,包括:
    生成模块,用于利用N个正交覆盖码OCC,对M个前导序列进行码分处理,生成N*M个前导序列;
    其中,N为大于或者等于2的整数,M为大于或者等于1且小于第一预设值的整数,N*M大于或者等于第一预设值。
  10. 根据权利要求9所述的装置,其中,所述装置还包括:
    去除模块,用于若N*M大于所述第一预设值,去除冗余的前导序列得到第一预设值数量的前导序列。
  11. 根据权利要求9所述的装置,其中,所述M个前导序列包括:所述终端的待接入小区可用的全部或者部分前导序列。
  12. 根据权利要求9所述的装置,其中,所述装置还包括:
    第一确定模块,用于根据第一参数,确定M的取值以及N的取值中的至少一项;其中,第一参数包括下述至少之一:
    网络配置参数;
    预定义参数;
    小区标识;
    同步信号块模式;
    同步信号块子载波间隔。
  13. 根据权利要求9所述的装置,其中,所述装置还包括:
    第二确定模块,用于根据物理随机接入信道的作用,确定M的取值;其中,物理随机接入信道的作用包括下述至少之一:
    基于竞争的随机接入;
    基于非竞争的随机接入;
    2步随机接入;
    波束失败恢复;
    系统信息请求。
  14. 根据权利要求9所述的装置,其中,所述装置还包括下述任意一项:
    第三确定模块,用于根据M的取值和N的取值之间的映射关系以及N 的取值,确定M的取值;
    第四确定模块,用于根据M的取值和N的取值之间的映射关系以及M的取值,确定N的取值。
  15. 根据权利要求9所述的装置,其中,所述生成模块包括:
    生成子模块,用于利用每个OCC分别与所述M个前导序列相乘,生成N*M个前导序列。
  16. 根据权利要求10所述的装置,其中,所述去除模块包括:
    去除子模块,用于根据网络配置或预定义的规则,去除冗余的前导序列得到第一预设值数量的前导序列;其中,网络配置或预定义的规则包括下述至少之一:
    去除N*M个前导序列的前A1个前导序列;其中,A1等于N*M减去第一预设值;
    去除N*M个前导序列的后A1个前导序列;
    去除N*M个前导序列的前A2个前导序列和后A3个前导序列;其中,A2+A3等于N*M减去第一预设值;
    去除每个OCC生成的前导序列的前A4个前导序列;其中,A4等于N*M减去第一预设值的N分之一;
    去除每个OCC生成的前导序列的后A4个前导序列;
    去除每个OCC生成的前导序列的前A5个前导序列和后A6个前导序列;其中,A5+A6等于N*M减去第一预设值的N分之一;
    去除至少一个OCC生成的前导序列的后A7个前导序列,并去除至少一个OCC生成的前导序列的前A8个前导序列;其中,各个A7和各个A8之和等于N*M减去第一预设值。
  17. 一种终端,其中,包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如权利要求1至8中任一项所述的前导序列的生成方法的步骤。
  18. 一种可读存储介质,所述可读存储介质上存储程序或指令,其中, 所述程序或指令被处理器执行时实现如权利要求1-8任一项所述的前导序列的生成方法的步骤。
  19. 一种芯片,包括处理器和通信接口,其中,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现如权利要求1-8中任一项所述的前导序列的生成方法的步骤。
  20. 一种计算机程序产品,其中,所述程序产品被存储在非瞬态存储介质中,所述程序产品被至少一个处理器执行以实现如权利要求1-8中任一项所述的前导序列的生成方法的步骤。
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