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 PDFInfo
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- 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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
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- 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
Description
Claims (20)
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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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| CN107113261A (zh) * | 2014-12-29 | 2017-08-29 | 瑞典爱立信有限公司 | 用于生成以及检测随机接入前导的方法和设备 |
| CN108322282A (zh) * | 2017-01-16 | 2018-07-24 | 北京三星通信技术研究有限公司 | 随机接入前导序列的生成方法、指示方法和装置 |
| CN109803435A (zh) * | 2017-11-16 | 2019-05-24 | 北京三星通信技术研究有限公司 | 随机接入方法及其设备 |
| US20190387551A1 (en) * | 2017-01-23 | 2019-12-19 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and device for two-step random accessing |
| CN110621035A (zh) * | 2018-06-20 | 2019-12-27 | 普天信息技术有限公司 | 波束失败恢复方法、基站及用户设备 |
| US20200252972A1 (en) * | 2017-09-29 | 2020-08-06 | Qualcomm Incorporated | Increasing physical random access capacity using orthogonal cover codes |
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|---|---|---|---|---|
| CN107113261A (zh) * | 2014-12-29 | 2017-08-29 | 瑞典爱立信有限公司 | 用于生成以及检测随机接入前导的方法和设备 |
| CN108322282A (zh) * | 2017-01-16 | 2018-07-24 | 北京三星通信技术研究有限公司 | 随机接入前导序列的生成方法、指示方法和装置 |
| US20190387551A1 (en) * | 2017-01-23 | 2019-12-19 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and device for two-step random accessing |
| US20200252972A1 (en) * | 2017-09-29 | 2020-08-06 | Qualcomm Incorporated | Increasing physical random access capacity using orthogonal cover codes |
| CN109803435A (zh) * | 2017-11-16 | 2019-05-24 | 北京三星通信技术研究有限公司 | 随机接入方法及其设备 |
| CN110621035A (zh) * | 2018-06-20 | 2019-12-27 | 普天信息技术有限公司 | 波束失败恢复方法、基站及用户设备 |
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