CN116963012A

CN116963012A - Method and device for determining sequence length and communication equipment

Info

Publication number: CN116963012A
Application number: CN202210420866.2A
Authority: CN
Inventors: 吴凯; 王理惠
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-04-20
Filing date: 2022-04-20
Publication date: 2023-10-27

Abstract

The application discloses a method and a device for determining a sequence length and communication equipment, which belong to the technical field of communication, and the method for determining the sequence length in the embodiment of the application comprises the following steps: the terminal determines the sequence length of the random access preamble according to at least one of the following; channel bandwidth indicated by the network side equipment; a terminal working frequency band; physical random access channel resource indication information sent by network side equipment; the frequency location of the detected synchronization signal/physical broadcast channel signal block SSB.

Description

Method and device for determining sequence length and communication equipment

Technical Field

The application belongs to the technical field of communication, and particularly relates to a method and a device for determining a sequence length and communication equipment.

Background

Currently, several vertical industries and operators have planned to support railway communications, smart grid control, and public safety using New Radio (NR) systems on some dedicated spectrums of frequency division duplexing (Frequency Division Duplex, FDD). The railway communication scene is an NR narrow bandwidth deployment scene and is a high-speed mobile scene at the same time, in the scene, a physical random access channel (Physical Random Access Channel, PRACH) format (format) supporting the high-speed mobile scene is needed, but the bandwidth corresponding to the PRACH format supporting the high-speed mobile scene is larger, the bandwidth of the NR narrow bandwidth deployment scene is smaller, and further the bandwidth corresponding to the PRACH format supporting the high-speed mobile scene is out of the NR narrow bandwidth deployment scene, so that the PRACH format supporting the high-speed mobile scene is difficult to meet the system bandwidth requirement.

Disclosure of Invention

The embodiment of the application provides a method, a device and communication equipment for determining a sequence length, which can solve the problem of how to support a high-speed mobile scene and meet the requirement of a system bandwidth by a physical random access channel format.

In a first aspect, a method for determining a sequence length is provided, including:

the terminal determines the sequence length of the random access preamble according to at least one of the following;

channel bandwidth indicated by the network side equipment;

a terminal working frequency band;

physical random access channel resource indication information sent by network side equipment;

the frequency location of the detected synchronization signal/physical broadcast channel signal block SSB.

In a second aspect, a method for determining a sequence length is provided, including:

the network side equipment determines the sequence length of the random access preamble according to at least one of the following items;

the network side equipment indicates the channel bandwidth to the terminal;

a terminal working frequency band;

the network side equipment sends physical random access channel resource indication information to the terminal;

the frequency location of the synchronization signal/physical broadcast channel signal block SSB.

In a third aspect, a sequence length determining apparatus is provided, including:

A first determining module, configured to determine a sequence length of the random access preamble according to at least one of the following;

channel bandwidth indicated by the network side equipment;

a terminal working frequency band;

In a fourth aspect, there is provided a sequence length determining apparatus, including:

a second determining module, configured to determine a sequence length of the random access preamble according to at least one of the following;

the network side equipment indicates the channel bandwidth to the terminal;

a terminal working frequency band;

In a fifth aspect, there is provided a terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the first aspect.

In a sixth aspect, a terminal is provided, including a processor and a communication interface, where the processor is configured to determine a sequence length of a random access preamble according to at least one of the following;

Channel bandwidth indicated by the network side equipment;

a terminal working frequency band;

In a seventh aspect, a network side device is provided, comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the second aspect.

An eighth aspect provides a network side device, including a processor and a communication interface, where the processor is configured to determine a sequence length of a random access preamble according to at least one of the following;

the network side equipment indicates the channel bandwidth to the terminal;

a terminal working frequency band;

In a ninth aspect, a system for determining a sequence length is provided, including: a terminal and a network side device, the terminal being operable to perform the steps of the method for determining a sequence length according to the first aspect, the network side device being operable to perform the steps of the method for determining a sequence length according to the second aspect.

In a tenth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor, performs the steps of the method according to the first aspect or performs the steps of the method according to the second aspect.

In an eleventh aspect, there is provided a chip comprising a processor and a communication interface coupled to the processor, the processor being for running a program or instructions to implement the method according to the first aspect or to implement the method according to the second aspect.

In a twelfth aspect, there is provided a computer program/program product stored in a storage medium, the computer program/program product being executed by at least one processor to implement the steps of the method of determining a sequence length according to the first or second aspect.

In the embodiment of the application, the terminal determines the sequence length of the random access preamble according to the channel bandwidth indicated by the network side equipment, the terminal working frequency band (or the terminal working frequency band), the physical random access channel resource indication information sent by the network side equipment and/or the frequency position of the detected SSB, instead of adopting the sequence length of the fixed random access preamble, so as to ensure that the physical random access channel format corresponding to the random access preamble can support a high-speed mobile scene and ensure that the bandwidth corresponding to the physical random access channel format is within the system bandwidth, thereby better supporting a communication deployment scene (such as a railway communication scene) with small bandwidth and high mobile speed.

Drawings

Fig. 1 is a block diagram showing a communication system to which an embodiment of the present application is applicable;

FIG. 2 is a flow chart of a method for determining a sequence length according to an embodiment of the present application;

FIG. 3 is a second flow chart of a method for determining a sequence length according to an embodiment of the application;

FIG. 4 shows one of the block diagrams of the determining apparatus of the sequence length according to the embodiment of the present application;

FIG. 5 is a second block diagram of a sequence length determining apparatus according to an embodiment of the present application;

fig. 6 shows a block diagram of a communication device according to an embodiment of the present application;

fig. 7 is a block diagram showing the structure of a terminal according to an embodiment of the present application;

fig. 8 is a block diagram of a network device according to an embodiment of the present application.

Detailed Description

The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the application, fall within the scope of protection of the application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the "first" and "second" distinguishing between objects generally are not limited in number to the extent that the first object may, for example, be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

It should be noted that the techniques described in the embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single carrier frequency division multiple access (Single-carrier Frequency Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New air interface (NR) system for purposes of example and uses NR terminology in much of the description that follows, but these techniques are also applicable to applications other than NR system applications, such as generation 6 (6) ^th Generation, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may be a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer) or a terminal-side Device called a notebook, a personal digital assistant (Personal Digital Assistant, PDA), a palm top, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet appliance (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) Device, a robot, a Wearable Device (weather Device), a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), a smart home (home Device with a wireless communication function, such as a refrigerator, a television, a washing machine, or a furniture), a game machine, a personal Computer (personal Computer, PC), a teller machine, or a self-service machine, and the Wearable Device includes: intelligent wrist-watch, intelligent bracelet, intelligent earphone, intelligent glasses, intelligent ornament (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain etc.), intelligent wrist strap, intelligent clothing etc.. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network-side device 12 may comprise an access network device or a core network device, wherein the access network device 12 may also be referred to as a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or a radio access network element. Access network device 12 may include a base station, a WLAN access point, a WiFi node, or the like, which may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a home node B, a home evolved node B, a transmission and reception point (Transmitting Receiving Point, TRP), or some other suitable terminology in the art, and the base station is not limited to a particular technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiment of the present application, only a base station in the NR system is described as an example, and the specific type of the base station is not limited.

The following description is presented to enable one skilled in the art to better understand the embodiments of the present application.

Format (format) of PRACH and channel bandwidth:

the PRACH of NR supports a plurality of PRACH formats, and coverage and moving speed of different formats are different.

The subcarrier interval of formats 0-2 is 1.25khz, the sequence length of the prach preamble (preamble) is 839, and a restricted set (restricted set) of cyclic shift can be supported to support a scenario of higher speed movement; the bandwidth of these prachfmamat is 1.0488MHz.

The subcarrier interval of Format 3 is the length 839 of 5kHz,PRACH preamble, can support cyclic shift's restricted set in order to support the scene of higher speed movement, and the subcarrier interval of PRACH Format 3 is 5kHz, and the subcarrier interval is bigger than PRACH Format 0-2, can support the scene of higher speed movement. The bandwidth of the PRACH format is 4.195MHz.

The method for determining the sequence length provided by the embodiment of the application is described in detail below through some embodiments and application scenes thereof with reference to the accompanying drawings.

As shown in fig. 2, an embodiment of the present application provides a method for determining a sequence length, including:

step 201: the terminal determines the sequence length of the random access preamble according to at least one of the following;

Channel bandwidth indicated by the network side equipment;

a terminal working frequency band;

Optionally, the terminal transmits the random access preamble on the physical random access channel according to the determined sequence length of the random access preamble.

Optionally, the sequence length includes a first sequence length or a second sequence length, and the first sequence length is less than the second sequence length.

Optionally, the first sequence length is prime. For example, the first sequence length includes one of:

[149 151 157 163 167 173 179 181 191 193 197 199 211 223 227 229 233 239 241 251 257 263 269 271 277 281 283 293 307 311 313 317 331 337 347 349 353 359 367 373 379 383 389 397 401 409 419 421 431 433 439 443 449 457 461 463 467 479 487 491 499 503 509 521 523 541 547 557 563 569 571 577 587 593 599 601 607 613 617 619 631 641 643 647 653 659 661 673 677 683 691 701 709 719 727 733 739 743 751 757 761 769 773 787 797 809 811 821 823 827 829]。

optionally, the second sequence length is 839. The second sequence length may also be described as a default length.

Optionally, the random access preamble is a preamble corresponding to the first physical random access channel format.

In the embodiment of the present application, the random access preamble is a preamble corresponding to a physical random access channel format. For example, the random access preamble is a preamble corresponding to NR PRACH format 3.

In the embodiment of the application, at least two sequence lengths are set for the random access preamble codes corresponding to the first physical random access channel format, so that the random access preamble codes with proper sequence lengths can be selected to meet the system bandwidth in a specific scene, such as a railway communication scene.

Optionally, the determining, by the terminal, the sequence length of the random access preamble according to the channel bandwidth indicated by the network side device includes at least one of the following:

determining the sequence length of the random access preamble as the first sequence length under the condition that the channel bandwidth indicated by the network side equipment is smaller than the first bandwidth;

And determining the sequence length of the random access preamble to be the second sequence length under the condition that the channel bandwidth indicated by the network side equipment is larger than or equal to the first bandwidth.

In a specific embodiment of the present application, the network side device indicates that the system bandwidth is smaller than the first bandwidth, for example, the network side device indicates that the bandwidth is 3.2MHz in the system information, where the system bandwidth is smaller than the bandwidth of the 839 length sequence of PRACH format 3. At this time, the terminal determines that the length of the preamble of the PRACH format 3 is a first sequence length, for example 571, where the bandwidth of the PRACH format 3 is smaller than the system bandwidth.

Optionally, the determining, by the terminal, the sequence length of the random access preamble according to the terminal working frequency band includes at least one of the following:

under the condition that the working frequency band of the terminal is a first frequency band, determining that the sequence length of a random access preamble is the first sequence length, wherein the first frequency band is a predefined frequency band or a frequency band corresponding to railway communication;

and under the condition that the working frequency band of the terminal is a second frequency band, determining the sequence length of the random access preamble to be the second sequence length, wherein the second frequency band is a frequency band except the first frequency band.

In an embodiment of the present application, the terminal operates on a frequency band X (band X), which is in a specific frequency band or a specific frequency band (the first frequency band described above), and the terminal assumes that the preamble length of PRACH format 3 is a first sequence length, for example 571.

Optionally, the determining, by the terminal, the sequence length of the random access preamble according to the physical random access channel resource indication information sent by the network side device includes at least one of the following:

determining the sequence length of the random access preamble as the indicated preamble sequence length under the condition that the physical random access channel resource indication information indicates the preamble sequence length, wherein the indicated preamble sequence length comprises a first sequence length or a second sequence length;

and determining that the sequence length of the random access preamble is a second sequence length under the condition that the physical random access channel resource indication information does not indicate the preamble sequence length.

In an embodiment of the present application, assuming that the network configures the PRACH format to be format 3, the network may further indicate that the sequence length of the PRACH format 3 is a first preset length, for example 571. If the network does not indicate the length of the sequence, then the default length, 839, is still used.

Optionally, the determining, by the terminal, the sequence length of the random access preamble according to the frequency position where the synchronization signal/physical broadcast channel signal block SSB detected by the terminal is located includes at least one of:

under the condition that the frequency position of the SSB detected by the terminal is a first frequency point, determining the sequence length of a random access preamble used when a physical random access channel is transmitted on a service cell where the SSB is located as a first sequence length;

and under the condition that the frequency position of the SSB detected by the terminal is a second frequency point, determining the sequence length of a random access preamble used when a physical random access channel is transmitted on a service cell where the SSB is located as a second sequence length.

Optionally, the first frequency point is a synchronization grid sync symbol defined for a bandwidth less than or less than a preset bandwidth or a first frequency band;

the second frequency point is a synchronization grid defined for a bandwidth greater than or equal to a preset bandwidth or a frequency band other than the first frequency band.

Optionally, the first frequency band is a predefined frequency band or a frequency band corresponding to railway communication.

In a specific embodiment of the present application, for certain specific frequency bands, or on certain frequency bands supporting a minimum bandwidth of 3-5MHz channel bandwidth, the network may define a new sync symbol (i.e. a series of frequency points) on which the terminal sends a preamble length of the PRACH on the corresponding cell to a first preset length, e.g. 571, if SSB is detected.

Optionally, for some specific frequency bands, or on some frequency bands supporting a minimum bandwidth of 3-5MHz channel bandwidth, the bandwidth requirement of the PRACH configured by the network side device is less than or equal to the system bandwidth, or the bandwidth of the PRACH format configured by the terminal undesirable network side device is greater than the system bandwidth indicated by the network.

In the embodiment of the application, a new sequence length is introduced for the preamble corresponding to the first physical random access channel format, so that the bandwidth of the first physical random access channel format is narrower, and the bandwidth of the first physical random access channel format supporting the high-speed scene can be within the system bandwidth. This can better support the typical deployment scenario of railway communications where bandwidth is small and moving speed is high.

As shown in fig. 3, the embodiment of the present application further provides a method for determining a sequence length, including:

step 301: the network side equipment determines the sequence length of the random access preamble according to at least one of the following items;

the network side equipment indicates the channel bandwidth to the terminal;

a terminal working frequency band;

Optionally, the network side device receives the random access preamble on the physical random access channel according to the determined sequence length of the random access preamble.

In the embodiment of the application, the network side equipment determines the sequence length of the random access preamble according to the channel bandwidth indicated by the network side equipment to the terminal, the working frequency band of the terminal and the physical random access channel resource indication information sent by the network side equipment to the terminal and/or the frequency position where the SSB is positioned, instead of adopting the sequence length of the fixed random access preamble, so as to ensure that the physical random access channel format corresponding to the random access preamble can support a high-speed mobile scene and ensure that the bandwidth corresponding to the physical random access channel format is within the system bandwidth, thereby better supporting a communication deployment scene (such as a railway communication scene) with small bandwidth and high mobile speed.

Optionally, the network side device determines the sequence length of the random access preamble according to the channel bandwidth indicated by the network side device to the terminal, including at least one of the following:

Determining the sequence length of the random access preamble as the first sequence length under the condition that the channel bandwidth indicated to the terminal is smaller than the first bandwidth;

and determining the sequence length of the random access preamble to be the second sequence length in the case that the channel bandwidth indicated to the terminal is greater than or equal to the first bandwidth.

Optionally, the network side device determines the sequence length of the random access preamble according to the working frequency band of the terminal, including at least one of the following:

Optionally, the network side device determines the sequence length of the random access preamble according to the physical random access channel resource indication information sent by the network side device to the terminal, and the method includes at least one of the following steps:

Optionally, the network side device determines the sequence length of the random access preamble according to the frequency position where the synchronization signal/physical broadcast channel signal block SSB detected by the terminal is located, and includes at least one of the following:

under the condition that the frequency position of the SSB detected by the terminal is a first frequency point, determining that the sequence length of a random access preamble used by the terminal when the terminal transmits a physical random access channel on a service cell where the SSB is located is a first sequence length;

and under the condition that the frequency position of the SSB detected by the terminal is a second frequency point, determining that the sequence length of a random access preamble used by the terminal when the terminal transmits a physical random access channel on a service cell where the SSB is located is a second sequence length.

Optionally, the first sequence length is prime.

Optionally, the method of the embodiment of the present application further includes:

according to the channel bandwidth indicated to the terminal, configuring the format of a physical random access channel for the terminal;

and the configured bandwidth corresponding to the format of the physical random access channel is smaller than or equal to the channel bandwidth.

Here, for some specific frequency bands, or on some frequency bands supporting a channel bandwidth with a minimum bandwidth of 3-5MHz, the bandwidth requirement of the PRACH configured by the network side device is smaller than or equal to the system bandwidth, or the bandwidth of the PRACH format configured by the terminal undesirable to the network side device is larger than the system bandwidth indicated by the network.

In the embodiment of the present application, the specific implementation process of determining the sequence length of the random access preamble by the network side device is the same as the specific implementation process of determining the sequence length of the random access preamble by the terminal side, and will not be described herein.

According to the method for determining the sequence length provided by the embodiment of the application, the execution main body can be a device for determining the sequence length. In the embodiment of the present application, a method for determining a sequence length performed by a determining device for a sequence length is taken as an example, and the determining device for a sequence length provided in the embodiment of the present application is described.

As shown in fig. 4, the embodiment of the present application further provides a sequence length determining apparatus 400, which is applied to a terminal, and the apparatus includes:

a first determining module 401, configured to determine a sequence length of the random access preamble according to at least one of the following;

channel bandwidth indicated by the network side equipment;

a terminal working frequency band;

Optionally, the first determining module is configured to perform at least one of:

Optionally, the first sequence length is prime.

As shown in fig. 5, the embodiment of the present application further provides a sequence length determining apparatus 500, which is applied to a network side device, and the apparatus includes:

a second determining module 501, configured to determine a sequence length of the random access preamble according to at least one of the following;

the network side equipment indicates the channel bandwidth to the terminal;

a terminal working frequency band;

Optionally, the second determining module is further configured to perform at least one of:

Optionally, the first sequence length is prime.

Optionally, the device of the embodiment of the present application further includes:

a configuration module, configured to configure a format of a physical random access channel for a terminal according to a channel bandwidth indicated to the terminal;

The determining device of the sequence length in the embodiment of the application can be an electronic device, for example, an electronic device with an operating system, or can be a component in the electronic device, for example, an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices than a terminal. By way of example, terminals may include, but are not limited to, the types of terminals 11 listed above, other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., and embodiments of the application are not specifically limited.

The determining device for the sequence length provided in the embodiment of the present application can implement each process implemented by the method embodiment of fig. 2, and achieve the same technical effects, and in order to avoid repetition, a detailed description is omitted here.

Optionally, as shown in fig. 6, the embodiment of the present application further provides a communication device 600, including a processor 601 and a memory 602, where the memory 602 stores a program or an instruction that can be executed on the processor 601, for example, when the communication device 600 is a terminal, the program or the instruction is executed by the processor 601 to implement each step of the above-mentioned method embodiment for determining a sequence length on the terminal side, and the same technical effects can be achieved. When the communication device 600 is a network side device, the program or the instruction, when executed by the processor 601, implements the steps of the method embodiment for determining the sequence length of the network side device, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

The embodiment of the application also provides a terminal, which comprises a processor and a communication interface, wherein the processor is used for determining the sequence length of the random access preamble according to at least one of the following;

channel bandwidth indicated by the network side equipment;

a terminal working frequency band;

the frequency location of the detected synchronization signal/physical broadcast channel signal block SSB. The terminal embodiment corresponds to the terminal-side method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the terminal embodiment, and the same technical effects can be achieved. Specifically, fig. 7 is a schematic diagram of a hardware structure of a terminal for implementing an embodiment of the present application.

The terminal 700 includes, but is not limited to: at least some of the components of the radio frequency unit 701, the network module 702, the audio output unit 703, the input unit 704, the sensor 705, the display unit 706, the user input unit 707, the interface unit 708, the memory 709, and the processor 710.

Those skilled in the art will appreciate that the terminal 700 may further include a power source (e.g., a battery) for powering the various components, and that the power source may be logically coupled to the processor 710 via a power management system so as to perform functions such as managing charging, discharging, and power consumption via the power management system. The terminal structure shown in fig. 7 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine certain components, or may be arranged in different components, which will not be described in detail herein.

It should be appreciated that in an embodiment of the present application, the input unit 704 may include a Graphics ProcessingUnit, GPU (Graphics) 7041 and a microphone 7042, and the Graphics 7041 processes image data of still pictures or video obtained by an image capturing apparatus (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 707 includes at least one of a touch panel 7071 and other input devices 7072. The touch panel 7071 is also referred to as a touch screen. The touch panel 7071 may include two parts, a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In the embodiment of the present application, after receiving downlink data from a network side device, the radio frequency unit 701 may transmit the downlink data to the processor 710 for processing; in addition, the radio frequency unit 701 may send uplink data to the network side device. Typically, the radio unit 701 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 709 may be used to store software programs or instructions and various data. The memory 709 may mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 709 may include volatile memory or nonvolatile memory, or the memory 709 may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM), static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (ddr SDRAM), enhanced SDRAM (Enhanced SDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). Memory 709 in embodiments of the application includes, but is not limited to, these and any other suitable types of memory.

Processor 710 may include one or more processing units; optionally, processor 710 integrates an application processor that primarily processes operations involving an operating system, user interface, application programs, and the like, and a modem processor that primarily processes wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 710.

Wherein the processor 710 is configured to determine a sequence length of the random access preamble according to at least one of;

channel bandwidth indicated by the network side equipment;

a terminal working frequency band;

Optionally, the processor 710 is configured to perform at least one of:

The embodiment of the application also provides network side equipment, which comprises a processor and a communication interface, wherein the processor is used for determining the sequence length of the random access preamble according to at least one of the following;

the network side equipment indicates the channel bandwidth to the terminal;

a terminal working frequency band;

the frequency location of the synchronization signal/physical broadcast channel signal block SSB. The network side device embodiment corresponds to the network side device method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the network side device embodiment, and the same technical effects can be achieved.

Specifically, the embodiment of the application also provides network side equipment. As shown in fig. 8, the network side device 800 includes: an antenna 81, a radio frequency device 82, a baseband device 83, a processor 84 and a memory 85. The antenna 81 is connected to a radio frequency device 82. In the uplink direction, the radio frequency device 82 receives information via the antenna 81, and transmits the received information to the baseband device 83 for processing. In the downlink direction, the baseband device 83 processes information to be transmitted, and transmits the processed information to the radio frequency device 82, and the radio frequency device 82 processes the received information and transmits the processed information through the antenna 81.

The method performed by the network side device in the above embodiment may be implemented in the baseband apparatus 83, and the baseband apparatus 83 includes a baseband processor.

The baseband device 83 may, for example, include at least one baseband board, where a plurality of chips are disposed, as shown in fig. 8, where one chip, for example, a baseband processor, is connected to the memory 85 through a bus interface, so as to call a program in the memory 85 to perform the network device operation shown in the above method embodiment.

The network-side device may also include a network interface 86, such as a common public radio interface (common publicradio interface, CPRI).

Specifically, the network side device 800 of the embodiment of the present application further includes: instructions or programs stored in the memory 85 and executable on the processor 84, the processor 84 invokes the instructions or programs in the memory 85 to perform the method performed by the modules shown in fig. 5, and achieve the same technical effects, and are not repeated here.

The embodiment of the application also provides a readable storage medium, on which a program or an instruction is stored, which when executed by a processor, implements each process of the above-mentioned method embodiment for determining a sequence length, and can achieve the same technical effects, so that repetition is avoided, and no further description is given here.

Wherein the processor is a processor in the terminal described in the above embodiment. The readable storage medium includes computer readable storage medium such as computer readable memory ROM, random access memory RAM, magnetic or optical disk, etc.

The embodiment of the application further provides a chip, the chip comprises a processor and a communication interface, the communication interface is coupled with the processor, the processor is used for running a program or instructions, the processes of the above embodiment of the method for determining the sequence length can be realized, the same technical effects can be achieved, and the repetition is avoided, and the description is omitted here.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

The embodiment of the present application further provides a computer program/program product, where the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement each process of the above embodiment of the method for determining a sequence length, and the same technical effects can be achieved, so that repetition is avoided, and details are not repeated herein.

The embodiment of the application also provides a system for determining the sequence length, which comprises the following steps: the terminal can be used for executing the steps of the method for determining the sequence length applied to the terminal, and the network side device can be used for executing the steps of the method for determining the sequence length applied to the network side device.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.

Claims

1. A method for determining a sequence length, comprising:

channel bandwidth indicated by the network side equipment;

a terminal working frequency band;

2. The method of claim 1, wherein the sequence length comprises a first sequence length or a second sequence length, and wherein the first sequence length is less than the second sequence length.

3. The method according to claim 1 or 2, wherein the random access preamble is a preamble corresponding to a first physical random access channel format.

4. The method according to claim 2, wherein the determining, by the terminal, the sequence length of the random access preamble according to the channel bandwidth indicated by the network side device includes at least one of:

5. The method according to claim 2, wherein the determining, by the terminal, the sequence length of the random access preamble according to the terminal operating frequency band includes at least one of:

6. The method according to claim 2, wherein the determining, by the terminal, the sequence length of the random access preamble according to the physical random access channel resource indication information sent by the network side device includes at least one of:

7. The method according to claim 2, wherein the determining, by the terminal, the sequence length of the random access preamble according to the frequency location of the synchronization signal/physical broadcast channel signal block SSB detected by the terminal, includes at least one of:

8. The method of claim 7, wherein the first frequency point is a synchronization grid sync symbol defined for a bandwidth or a first frequency band that is less than or less than a preset bandwidth;

9. The method of claim 8, wherein the first frequency band is a predefined frequency band or a frequency band corresponding to railroad communication.

10. The method of claim 2, wherein the first sequence length is prime.

11. A method for determining a sequence length, comprising:

the network side equipment indicates the channel bandwidth to the terminal;

a terminal working frequency band;

12. The method of claim 11, wherein the sequence length comprises a first sequence length or a second sequence length, and wherein the first sequence length is less than the second sequence length.

13. The method according to claim 11 or 12, wherein the random access preamble is a preamble corresponding to a first physical random access channel format.

14. The method according to claim 12, wherein the network side device determines the sequence length of the random access preamble according to the channel bandwidth indicated by the network side device to the terminal, and comprises at least one of:

15. The method of claim 12, wherein the network side device determines the sequence length of the random access preamble according to the terminal operating frequency band, and comprises at least one of the following:

16. The method according to claim 12, wherein the network side device determines the sequence length of the random access preamble according to the physical random access channel resource indication information sent by the network side device to the terminal, and the method comprises at least one of:

17. The method according to claim 12, wherein the network side device determines the sequence length of the random access preamble according to the frequency location of the synchronization signal/physical broadcast channel signal block SSB detected by the terminal, and includes at least one of the following:

18. The method of claim 17, wherein the first frequency point is a synchronization grid sync symbol defined for a bandwidth or a first frequency band that is less than or less than a preset bandwidth;

19. The method of claim 18, wherein the first frequency band is a predefined frequency band or a frequency band corresponding to railroad communications.

20. The method of claim 12, wherein the first sequence length is prime.

21. The method as recited in claim 11, further comprising:

22. A sequence length determining apparatus, comprising:

channel bandwidth indicated by the network side equipment;

a terminal working frequency band;

23. The apparatus of claim 22, wherein the sequence length comprises a first sequence length or a second sequence length, and wherein the first sequence length is less than the second sequence length.

24. The apparatus according to claim 22 or 23, wherein the random access preamble is a preamble corresponding to a first physical random access channel format.

25. The apparatus of claim 23, wherein the first determination module is configured to perform at least one of:

26. The apparatus of claim 23, wherein the first determination module is configured to perform at least one of:

27. The apparatus of claim 23, wherein the first determination module is configured to perform at least one of:

28. The apparatus of claim 23, wherein the first determination module is configured to perform at least one of:

29. A sequence length determining apparatus, comprising:

the network side equipment indicates the channel bandwidth to the terminal;

a terminal working frequency band;

30. The apparatus of claim 29, wherein the sequence length comprises a first sequence length or a second sequence length, and wherein the first sequence length is less than the second sequence length.

31. The apparatus according to claim 29 or 30, wherein the random access preamble is a preamble corresponding to a first physical random access channel format.

32. A terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, performs the steps of the method of determining a sequence length as claimed in any one of claims 1 to 10.

33. A network side device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method of determining a sequence length as claimed in any one of claims 11 to 21.

34. A readable storage medium, characterized in that the readable storage medium has stored thereon a program or instructions which, when executed by a processor, implement the steps of the method of determining a sequence length according to any one of claims 1 to 10 or the steps of the method of determining a sequence length according to any one of claims 11 to 21.