CN116686379A

CN116686379A - Transmission method and device of physical random access channel PRACH

Info

Publication number: CN116686379A
Application number: CN202180004611.1A
Authority: CN
Inventors: 延凯悦
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2023-09-01
Also published as: WO2023122990A1

Abstract

The embodiment of the disclosure discloses a transmission method and a transmission device of a physical random access channel PRACH, which are applied to the technical field of communication, wherein the method executed by terminal equipment comprises the following steps: and determining the repetition times of the PRACH, and transmitting the PRACH according to the repetition times. Therefore, the terminal equipment can realize PRACH transmission with repeated times so as to realize PRACH coverage enhancement.

Description

Transmission method and device of physical random access channel PRACH

Technical Field

The disclosure relates to the technical field of communication, and in particular relates to a transmission method and device of a Physical Random Access Channel (PRACH).

Background

The random access technology is a key technology in a mobile communication system, and a terminal device (UE) establishes a communication connection with a network side device through the random access technology to complete subsequent interaction operations (such as a call, a resource request, or data transmission, etc.).

Disclosure of Invention

The embodiment of the disclosure provides a transmission method and a device for Physical Random Access Channel (PRACH), wherein a terminal device can determine the repetition number of PRACH transmission and perform the PRACH transmission of the repetition number to realize PRACH coverage enhancement.

In a first aspect, an embodiment of the present disclosure provides a method for transmitting a PRACH, where the method is performed by a terminal device, and the method includes: determining the repetition times of PRACH; and carrying out PRACH transmission according to the repetition times.

By implementing the embodiment of the disclosure, the terminal equipment determines the repetition times of PRACH; and carrying out PRACH transmission according to the repetition times. Therefore, the terminal equipment can realize PRACH transmission with repeated times so as to realize PRACH coverage enhancement.

In a second aspect, an embodiment of the present disclosure provides another method for transmitting PRACH, where the method is performed by a network side device, and the method includes: and indicating the repetition times of the PRACH of the terminal equipment and receiving the PRACH transmission of the repetition times sent by the terminal equipment.

In a third aspect, an embodiment of the present disclosure provides a communication apparatus having a function of implementing part or all of the terminal device in the method described in the first aspect, for example, a function of the communication apparatus may be provided with a function in part or all of the embodiments of the present disclosure, or may be provided with a function of implementing any one of the embodiments of the present disclosure separately. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the functions described above.

In one implementation, the communication device may include a transceiver module in its structure. The transceiver module is used for supporting communication between the communication device and other equipment. The communication device may further comprise a memory module for coupling with the transceiver module and the processing module, which holds the necessary computer programs and data of the communication device.

As an example, the processing module may be a processor, the transceiver module may be a transceiver or a communication interface, and the storage module may be a memory.

In one implementation, the communication device includes: a processing module, configured to determine a number of repetitions of the PRACH; and the receiving and transmitting module is used for carrying out PRACH transmission according to the repetition times.

In a fourth aspect, an embodiment of the present disclosure provides another communication apparatus, where the communication apparatus has a function of implementing part or all of the network side device in the method example described in the second aspect, for example, the function of the communication apparatus may be provided with a function in part or all of the embodiments of the present disclosure, or may be provided with a function of implementing any one of the embodiments of the present disclosure separately. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the functions described above.

In one implementation, the communication device may include a transceiver module in a structure that is configured to support communication between the communication device and other equipment. The communication device may further comprise a memory module for coupling with the transceiver module and the processing module, which holds the necessary computer programs and data of the communication device.

In one implementation, the communication device includes: and the processing module is used for indicating the repetition times of the PRACH of the terminal equipment and receiving the PRACH transmission of the repetition times sent by the terminal equipment.

In a fifth aspect, embodiments of the present disclosure provide a communication device comprising a processor, which when invoking a computer program in memory, performs the method of the first aspect described above.

In a sixth aspect, embodiments of the present disclosure provide a communication device comprising a processor that, when invoking a computer program in memory, performs the method of the second aspect described above.

In a seventh aspect, embodiments of the present disclosure provide a communication apparatus comprising a processor and a memory, the memory having a computer program stored therein; the processor executes the computer program stored in the memory to cause the communication device to perform the method of the first aspect described above.

In an eighth aspect, embodiments of the present disclosure provide a communication apparatus comprising a processor and a memory, the memory having a computer program stored therein; the processor executes the computer program stored in the memory to cause the communication device to perform the method of the second aspect described above.

In a ninth aspect, embodiments of the present disclosure provide a communications apparatus comprising a processor and interface circuitry for receiving code instructions and transmitting to the processor, the processor being configured to execute the code instructions to cause the apparatus to perform the method of the first aspect described above.

In a tenth aspect, embodiments of the present disclosure provide a communications device comprising a processor and interface circuitry for receiving code instructions and transmitting to the processor, the processor being configured to execute the code instructions to cause the device to perform the method of the second aspect described above.

In an eleventh aspect, an embodiment of the disclosure provides a communication system, where the system includes a communication device according to the third aspect and a communication device according to the fourth aspect, or where the system includes a communication device according to the fifth aspect and a communication device according to the sixth aspect, or where the system includes a communication device according to the seventh aspect and a communication device according to the eighth aspect, or where the system includes a communication device according to the ninth aspect and a communication device according to the tenth aspect.

In a twelfth aspect, an embodiment of the present invention provides a computer readable storage medium storing instructions for use by the terminal, where the instructions, when executed, cause the terminal device to perform the method of the first aspect.

In a thirteenth aspect, an embodiment of the present invention provides a readable storage medium, configured to store instructions for use by the network-side device, where the instructions, when executed, cause the network-side device to perform the method described in the second aspect.

In a fourteenth aspect, the present disclosure also provides a computer program product comprising a computer program which, when run on a computer, causes the computer to perform the method of the first aspect described above.

In a fifteenth aspect, the present disclosure also provides a computer program product comprising a computer program which, when run on a computer, causes the computer to perform the method of the second aspect described above.

In a sixteenth aspect, the present disclosure provides a chip system comprising at least one processor and an interface for supporting a terminal to implement the functionality referred to in the first aspect, e.g. to determine or process at least one of data and information referred to in the above-mentioned methods. In one possible design, the chip system further includes a memory for holding computer programs and data necessary for the terminal. The chip system can be composed of chips, and can also comprise chips and other discrete devices.

In a seventeenth aspect, the present disclosure provides a chip system comprising at least one processor and an interface for supporting a network-side device to implement the functionality involved in the second aspect, e.g. to determine or process at least one of data and information involved in the above-described method. In one possible design, the chip system further includes a memory for storing computer programs and data necessary for the network-side device. The chip system can be composed of chips, and can also comprise chips and other discrete devices.

In an eighteenth aspect, the present disclosure provides a computer program which, when run on a computer, causes the computer to perform the method of the first aspect described above.

In a nineteenth aspect, the present disclosure provides a computer program which, when run on a computer, causes the computer to perform the method of the second aspect described above.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the background of the present disclosure, the following description will explain the drawings that are required to be used in the embodiments or the background of the present disclosure.

Fig. 1 is a schematic architecture diagram of a communication system provided in an embodiment of the present disclosure;

Fig. 2 is a flowchart of a transmission method of PRACH provided in an embodiment of the present disclosure;

fig. 3 is a flowchart of another transmission method of PRACH provided by an embodiment of the disclosure;

fig. 4 is a flowchart of yet another transmission method of PRACH provided by an embodiment of the disclosure;

fig. 5 is a flowchart of yet another transmission method of PRACH provided by an embodiment of the disclosure;

fig. 6 is a flowchart of yet another transmission method of PRACH provided by an embodiment of the disclosure;

fig. 7 is a flowchart of yet another transmission method of PRACH provided by an embodiment of the disclosure;

fig. 8 is a flowchart of yet another transmission method of PRACH provided by an embodiment of the disclosure;

fig. 9 is a block diagram of a communication device provided by an embodiment of the present disclosure;

fig. 10 is a block diagram of another communication device provided by an embodiment of the present disclosure;

fig. 11 is a block diagram of yet another communication device provided by an embodiment of the present disclosure;

fig. 12 is a schematic structural diagram of a chip according to an embodiment of the disclosure.

Detailed Description

In order to better understand a transmission method of a physical random access channel PRACH disclosed in an embodiment of the present disclosure, a communication system to which the embodiment of the present disclosure is applicable is first described below.

Referring to fig. 1, fig. 1 is a schematic architecture diagram of a communication system 1 according to an embodiment of the disclosure. The number and form of the devices shown in fig. 1 are only for example and not limiting the embodiments of the disclosure, and two or more network side devices and two or more terminal devices may be included in the practical application. The communication system 1 shown in fig. 1 is exemplified as including a network-side device 11 and a terminal device 12.

It should be noted that the technical solution of the embodiment of the present disclosure may be applied to various communication systems. For example: a long term evolution (long term evolution, LTE) system, a fifth generation (5th generation,5G) mobile communication system, a 5G New Radio (NR) system, or other future new mobile communication systems, etc.

The network-side device 11 in the embodiment of the present disclosure is an entity for transmitting or receiving a signal at the network side. For example, the network-side device 101 may be an evolved NodeB (eNB), a transmission point (transmission reception point, TRP), a next generation NodeB (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (wireless fidelity, wiFi) system, or the like. The embodiment of the disclosure does not limit the specific technology and the specific equipment form adopted by the network side equipment. The network side device provided in the embodiments of the present disclosure may be composed of a Central Unit (CU) and a Distributed Unit (DU), where the CU may also be referred to as a control unit (control unit), and the structure of the CU-DU may be used to split a protocol layer of the network side device, for example, a base station, where functions of a part of the protocol layer are placed in the CU for centralized control, and functions of the rest part or all of the protocol layer are distributed in the DU, where the CU centrally controls the DU.

The terminal device 12 in the embodiments of the present disclosure is an entity on the user side for receiving or transmitting signals, such as a mobile phone. The terminal device may also be referred to as a terminal device (terminal), a User Equipment (UE), a Mobile Station (MS), a mobile terminal device (MT), etc. The terminal device may be an automobile with a communication function, a smart car, a mobile phone (mobile phone), a wearable device, a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in unmanned-driving (self-driving), a wireless terminal device in teleoperation (remote medical surgery), a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in smart city (smart city), a wireless terminal device in smart home (smart home), or the like. The embodiment of the present disclosure does not limit the specific technology and the specific device configuration adopted by the terminal device.

It may be understood that, the communication system described in the embodiments of the present disclosure is for more clearly describing the technical solutions of the embodiments of the present disclosure, and is not limited to the technical solutions provided in the embodiments of the present disclosure, and those skilled in the art can know that, with the evolution of the system architecture and the appearance of new service scenarios, the technical solutions provided in the embodiments of the present disclosure are equally applicable to similar technical problems.

A method and apparatus for updating location information provided in the present disclosure are described in detail below with reference to the accompanying drawings.

Referring to fig. 2, fig. 2 is a flowchart of a transmission method of PRACH according to an embodiment of the disclosure.

As shown in fig. 2, the method is performed by a terminal device, and may include, but is not limited to, the steps of:

s21: the number of repetitions of PRACH is determined.

S22: and carrying out PRACH transmission according to the repetition times.

It can be appreciated that when the terminal device transmits the PRACH, the terminal device does not establish an RRC (Radio Resource Control ) connection with the network side device, and at this time, the network side device cannot indicate the number of repetitions through the RRC or the terminal device specific PDCCH (Physical Downlink Control Channel ).

In some embodiments, the number of repetitions of PRACH is agreed upon by the protocol.

In the embodiment of the disclosure, the terminal equipment can determine the repetition number of the PRACH according to the protocol convention, so that the PRACH is transmitted according to the determined repetition number of the PRACH.

In an exemplary embodiment, the number of repetitions of PRACH by protocol is a fixed value, for example, a fixed value is 8, and the terminal device can determine that the number of repetitions of PRACH is 8 according to protocol convention, so that according to the determined number of repetitions of PRACH is 8, repeated transmission of PRACH can be performed for 8 times.

Based on this, in the embodiment of the present disclosure, the terminal device determines the repetition number of PRACH, where the repetition number of PRACH is agreed by the protocol, and performs transmission of PRACH according to the determined repetition number of PRACH. Therefore, the terminal equipment determines the repetition times of PRACH transmission, and realizes the PRACH transmission of the repetition times so as to realize the PRACH coverage enhancement.

Referring to fig. 3, fig. 3 is a flowchart of another transmission method of PRACH according to an embodiment of the disclosure.

As shown in fig. 3, the method is performed by a terminal device, and may include, but is not limited to, the steps of:

s31: determining the repetition times of PRACH; the repetition times of the PRACH are determined by the indication information of the network side equipment.

S32: and carrying out PRACH transmission according to the repetition times.

In the embodiment of the disclosure, the terminal device can determine the repetition number of the PRACH according to the indication information of the network side device, so that the PRACH is transmitted according to the determined repetition number of the PRACH.

In some embodiments, the indication information of the network side device indicates that the number of repetitions of the PRACH is a preset value.

In an exemplary embodiment, the indication information of the network side device indicates that the number of repetitions of PRACH is a preset value of 8, and the terminal device can determine that the number of repetitions of PRACH is 8 according to the indication information of the network side device, so that according to the determined number of repetitions of PRACH is 8, repeated transmission of PRACH can be performed for 8 times.

In other embodiments, the terminal device determines a candidate set of values; and selecting the repetition times from the candidate value sets according to the indication information of the network side equipment.

In an exemplary embodiment, the terminal device determines that the candidate value set is {2,4,8}, selects the repetition number 4 from the candidate value set according to the indication information of the network side device, and the terminal device can determine that the repetition number of PRACH is 4 according to the indication information of the network side device, so that the repeated transmission of the PRACH can be performed for 4 times according to the determined repetition number of the PRACH is 4.

In still other embodiments, the terminal device obtains a random access configuration table, where the random access configuration table includes repetition number information; and acquiring the repetition times from the random access configuration table according to the index value indicated by the indication information.

In an exemplary embodiment, a random access configuration table is extended, data including repetition number information is added, and the repetition number is obtained from the random access configuration table by using indication information of the network side device as an index value of the random access configuration table, so as to determine the repetition number of the PRACH.

In some embodiments, the indication information is carried by a physical broadcast information MIB, or by a system information block SIB1, or by an additional payload of a physical broadcast channel PBCH.

In some embodiments, the indication information is carried by an existing bit field of MIB or SIB1 or by an extended bit field of MIB or SIB 1.

In the embodiment of the disclosure, the indication information of the network device may be carried by an MIB (Master Information Block ) carried by a PBCH (Physical Broadcast Channe, physical broadcast channel), where the indication information is carried by an existing bit field of the MIB or by an extended bit field of the MIB.

In the embodiment of the disclosure, the indication information of the network device may be carried by an additional load of the PBCH.

In the embodiments of the present disclosure, the indication information of the network device may be carried by a system information block SIB1 (system information block, system information block 1), where the indication information is carried by an existing bit field of the system information block SIB1 or by an extended bit field of the system information block SIB 1.

Based on this, in the embodiment of the present disclosure, the terminal device determines the repetition number of the PRACH, where the repetition number of the PRACH is determined by the indication information of the network side device, and performs transmission of the PRACH according to the determined repetition number of the PRACH. Therefore, the terminal equipment determines the repetition times of PRACH transmission, and realizes the PRACH transmission of the repetition times so as to realize the PRACH coverage enhancement.

Referring to fig. 4, fig. 4 is a flowchart of another transmission method of PRACH according to an embodiment of the disclosure.

As shown in fig. 4, the method is performed by a terminal device, and may include, but is not limited to, the steps of:

s41: determining the repetition times of PRACH; acquiring SSB information of a synchronous signal block selected by terminal equipment; wherein, each SSB information corresponds to repetition number information; and acquiring the repetition number information corresponding to the selected SSB information and taking the repetition number information as the repetition number of the PRACH.

S42: and carrying out PRACH transmission according to the repetition times.

In the embodiment of the disclosure, the terminal device can obtain the repetition number information corresponding to the selected SSB (Synchronous Signal Block, synchronization signal block) information according to the selected SSB information, and determine the repetition number of the PRACH as the repetition number of the PRACH, thereby transmitting the PRACH according to the determined repetition number of the PRACH. The terminal device may select an optimal SSB with stronger channel quality, and how to select the optimal SSB may be an existing method, so in the embodiment of the present disclosure, only the repetition number and the SSB information binding may be limited.

In the embodiment of the disclosure, the number of repetitions of the PRACH may be bound to SSB beams, where each SSB beam corresponds to the number of repetitions information, and in case that the terminal device selects a downlink SSB beam, the number of repetitions of the PRACH may be implicitly obtained according to the number of repetitions information corresponding to the selected SSB beam.

Based on this, in the embodiment of the disclosure, the terminal device determines the repetition number of the PRACH, where the SSB information of the synchronization block selected by the terminal device is obtained; wherein, each SSB information corresponds to repetition number information; and acquiring the repetition number information corresponding to the selected SSB information, taking the repetition number information as the repetition number of the PRACH, and carrying out PRACH transmission according to the determined repetition number of the PRACH. Therefore, the terminal equipment determines the repetition times of PRACH transmission, and realizes the PRACH transmission of the repetition times so as to realize the PRACH coverage enhancement.

Referring to fig. 5, fig. 5 is a flowchart of another transmission method of PRACH according to an embodiment of the disclosure.

As shown in fig. 5, the method is performed by a terminal device, and may include, but is not limited to, the steps of:

s51: determining the repetition times of PRACH; the method comprises the steps of obtaining a Preamble of a terminal device; wherein, each Preamble corresponds to repetition number information; and acquiring the repetition number information corresponding to the Preamble and taking the repetition number information as the repetition number of the PRACH.

S52: and carrying out PRACH transmission according to the repetition times.

In the embodiment of the disclosure, the terminal device can obtain the repetition number information corresponding to the selected Preamble according to the selected Preamble, and determine the repetition number of the PRACH as the repetition number of the PRACH, thereby transmitting the PRACH according to the determined repetition number of the PRACH.

In the embodiment of the disclosure, the number of repetitions of the PRACH may be bound to the Preamble of the PRACH, the preambles are grouped, a certain group of preambles corresponds to a fixed number of repetitions, and in the case that the terminal device selects a Preamble, the number of repetitions of the PRACH may be implicitly obtained according to the repetition information corresponding to the selected Preamble.

Based on this, in the embodiment of the disclosure, the terminal device determines the repetition number of PRACH, where a Preamble of the terminal device is obtained; wherein, each Preamble corresponds to repetition number information; and acquiring the repetition number information corresponding to the Preamble, taking the repetition number information as the repetition number of the PRACH, and carrying out PRACH transmission according to the determined repetition number of the PRACH. Therefore, the terminal equipment determines the repetition times of PRACH transmission, and realizes the PRACH transmission of the repetition times so as to realize the PRACH coverage enhancement.

Referring to fig. 6, fig. 6 is a flowchart of another transmission method of PRACH according to an embodiment of the disclosure.

As shown in fig. 6, the method is performed by a terminal device, and may include, but is not limited to, the steps of:

s61: determining the repetition times of PRACH; wherein, acquiring random access opportunity RO of terminal equipment; wherein, each RO corresponds to the repetition number information; and acquiring the repetition number information corresponding to the RO and taking the repetition number information as the repetition number of the PRACH.

S62: and carrying out PRACH transmission according to the repetition times.

In the embodiment of the disclosure, the terminal device can obtain the repetition number information corresponding to the selected RO (RACH occision) according to the selected random access opportunity RO, and determine the repetition number of the PRACH as the repetition number of the PRACH, thereby performing transmission of the PRACH according to the determined repetition number of the PRACH.

In the embodiment of the present disclosure, the number of repetitions of PRACH may be bound to an RO, where one or more ROs correspond to a fixed number of repetitions, and in case that the terminal device selects the RO, the number of repetitions of PRACH may be implicitly obtained according to the number of repetitions information corresponding to the selected RO.

Based on this, in the embodiment of the present disclosure, the terminal device determines the repetition number of PRACH, where the random access opportunity RO of the terminal device is obtained; wherein, each RO corresponds to the repetition number information; and acquiring repetition number information corresponding to the RO, serving as the repetition number of the PRACH, and transmitting the PRACH according to the determined repetition number of the PRACH. Therefore, the terminal equipment determines the repetition times of PRACH transmission, and realizes the PRACH transmission of the repetition times so as to realize the PRACH coverage enhancement.

Referring to fig. 7, fig. 7 is a flowchart of another transmission method of PRACH according to an embodiment of the disclosure.

As shown in fig. 7, the method is performed by the network side device, and the method may include, but is not limited to, the following steps:

s71: indicating the repetition number of PRACH of the terminal equipment and receiving PRACH transmission of the repetition number sent by the terminal equipment.

By implementing the embodiment of the disclosure, the repetition times of the PRACH of the terminal equipment are determined, so that the terminal equipment can transmit the PRACH according to the determined repetition times of the PRACH, and the PRACH coverage enhancement is realized.

Referring to fig. 8, fig. 8 is a flowchart of another transmission method of PRACH according to an embodiment of the disclosure.

As shown in fig. 8, the method is performed by the network side device, and the method may include, but is not limited to, the following steps:

s81: and sending indication information to the terminal equipment, indicating the repetition number of the PRACH of the terminal equipment according to the indication information, and receiving PRACH transmission of the repetition number sent by the terminal equipment.

In some embodiments, indication information is sent to a terminal device, so as to indicate the repetition number of the PRACH to be the preset value according to the preset value indicated by the indication information.

In other embodiments, indication information is sent to the terminal device to select the number of repetitions from among the set of candidate values in accordance with the indication information.

In still other embodiments, the indication information is sent to the terminal device; wherein the indication information indicates the index value to obtain the repetition number from the random access configuration table according to the index value.

In the embodiment of the present disclosure, the detailed description of S81 may be referred to the related description in the above examples of the present disclosure, and will not be repeated here.

In the embodiments provided in the present disclosure, the method provided in the embodiments of the present disclosure is described from the perspective of the network side device and the terminal device, respectively. In order to implement the functions in the method provided by the embodiments of the present disclosure, the network side device and the terminal device may include a hardware structure, a software module, and implement the functions in the form of a hardware structure, a software module, or a hardware structure plus a software module. Some of the functions described above may be implemented in a hardware structure, a software module, or a combination of a hardware structure and a software module.

Referring to fig. 9, a schematic structural diagram of a communication device 10 according to an embodiment of the disclosure is provided. The communication device 10 shown in fig. 9 may include a transceiver module 101. The transceiver module 101 may include a transmitting module for implementing a transmitting function and/or a receiving module for implementing a receiving function, and the transceiver module 101 may implement the transmitting function and/or the receiving function.

The communication device 10 may be a terminal device, a device in a terminal device, or a device that can be used in cooperation with a terminal device. Alternatively, the communication apparatus 10 may be a network-side device, an apparatus in a network-side device, or an apparatus that can be used in cooperation with a network-side device.

The communication apparatus 10 is a terminal device:

the device comprises: a processing module 101, configured to determine the number of repetitions of PRACH.

And the transceiver module 102 is configured to perform PRACH transmission according to the repetition number.

In some embodiments, the processing module 101 is specifically configured to determine the number of repetitions of PRACH according to a protocol specification.

As shown in fig. 10, in some embodiments, the processing module 101 includes a receiving unit 1011 and a determining unit 1012.

A receiving unit 1011 for receiving the instruction information of the network side device.

A determining unit 1012, configured to determine the number of repetitions of PRACH according to the indication information.

In some embodiments, the determining unit 1012 is specifically configured to determine that the number of repetitions of the PRACH is a preset value; wherein, the indication information indicates that the repetition number of the PRACH is a preset value.

In some embodiments, the determining unit 1012 is specifically configured to determine a candidate value set; the number of repetitions is selected from among the candidate value sets in accordance with the indication information.

In some embodiments, the determining unit 1012 is specifically configured to obtain a random access configuration table, where the random access configuration table includes repetition number information; and acquiring the repetition times from the random access configuration table according to the index value indicated by the indication information.

In some embodiments, the processing module 101 is specifically configured to obtain SSB information of a synchronization signal block selected by a terminal device; wherein, each SSB information corresponds to repetition number information; and acquiring the repetition number information corresponding to the selected SSB information and taking the repetition number information as the repetition number of the PRACH.

In some embodiments, the processing module 101 is specifically configured to obtain a Preamble of the terminal device; wherein, each Preamble corresponds to repetition number information; and acquiring the repetition number information corresponding to the Preamble and taking the repetition number information as the repetition number of the PRACH.

In some embodiments, the processing module 101 is specifically configured to obtain a random access opportunity RO of the terminal device; wherein, each RO corresponds to the repetition number information; and acquiring the repetition number information corresponding to the RO and taking the repetition number information as the repetition number of the PRACH.

With continued reference to fig. 9, the communication apparatus 10 is a network side device:

the device comprises: the processing module 101 is configured to determine the number of repetitions of PRACH of the terminal device, and receive PRACH transmission of the number of repetitions sent by the terminal device.

In some embodiments, the communication device 10 further includes a transceiver module 102.

And the transceiver module 102 is configured to send indication information to the terminal device, so as to determine the repetition number of the PRACH of the terminal device according to the indication information.

In some embodiments, the transceiver module 102 is specifically configured to send indication information to the terminal device, so as to select the repetition number from the candidate value set according to the indication information.

In some embodiments, the transceiver module 102 is specifically configured to send indication information to a terminal device; wherein the indication information indicates the index value to obtain the repetition number from the random access configuration table according to the index value.

In some embodiments, the indication information is carried by a physical broadcast information MIB, or by a system information block SIB 1.

With respect to the communication apparatus 10 in the above-described embodiment, the specific manner in which the respective modules perform the operations has been described in detail in the embodiment regarding the method, and will not be described in detail herein.

The communication device 10 provided in the foregoing embodiments of the present disclosure achieves the same or similar advantages as the transmission method of PRACH provided in some of the foregoing embodiments, and will not be described herein.

Referring to fig. 11, fig. 11 is a schematic structural diagram of another communication device 1000 according to an embodiment of the disclosure. The communication apparatus 1000 may be a network-side device, a terminal device, a chip system, a processor, or the like that supports the network-side device to implement the above method, or a chip, a chip system, a processor, or the like that supports the terminal device to implement the above method. The communication device 1000 may be used to implement the method described in the above method embodiments, and reference may be made in particular to the description of the above method embodiments.

The communications device 1000 may include one or more processors 1001. The processor 1001 may be a general purpose processor or a special purpose processor, or the like. For example, a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processor may be used to control communication devices (e.g., base stations, baseband chips, terminal equipment chips, DUs or CUs, etc.), execute computer programs, and process data of the computer programs.

Optionally, the communication device 1000 may further include one or more memories 1002, on which a computer program 1004 may be stored, where the memory 1002 executes the computer program 1004, so that the communication device 1000 performs the method described in the above method embodiments. Optionally, the memory 1002 may also store data. The communication device 1000 and the memory 1002 may be provided separately or may be integrated.

Optionally, the communication device 1000 may further comprise a transceiver 1005, an antenna 1006. The transceiver 1005 may be referred to as a transceiver unit, a transceiver circuit, or the like, for implementing a transceiver function. The transceiver 1005 may include a receiver, which may be referred to as a receiver or a receiving circuit, etc., for implementing a receiving function, and a transmitter; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., for implementing a transmitting function.

Optionally, one or more interface circuits 1007 may also be included in the communications apparatus 1000. The interface circuit 1007 is used to receive code instructions and transmit them to the processor 1001. The processor 1001 executes the code instructions to cause the communication device 1000 to perform the method described in the method embodiments described above.

The communication apparatus 1000 is a terminal device: the processor 1001 is configured to execute S21 in fig. 2; s31 in fig. 3; s41 in fig. 4; s51 in fig. 5; s61 in fig. 6; the transceiver 1005 is configured to perform S22 in fig. 2; s32 in fig. 3; s42 in fig. 4; s52 in fig. 5; s62 in fig. 6.

The communication apparatus 1000 is a network-side device: the processor 1001 is configured to execute S71 in fig. 7; s81 in fig. 8.

In one implementation, a transceiver for implementing the receive and transmit functions may be included in the processor 1001. For example, the transceiver may be a transceiver circuit, or an interface circuit. The transceiver circuitry, interface or interface circuitry for implementing the receive and transmit functions may be separate or may be integrated. The transceiver circuit, interface or interface circuit may be used for reading and writing codes/data, or the transceiver circuit, interface or interface circuit may be used for transmitting or transferring signals.

In one implementation, the processor 1001 may store a computer program 1003, where the computer program 1003 runs on the processor 1001, and may cause the communication device 1000 to execute the method described in the above method embodiment. The computer program 1003 may be solidified in the processor 1001, in which case the processor 1001 may be implemented by hardware.

In one implementation, the communications apparatus 1000 can include circuitry that can implement the functions of transmitting or receiving or communicating in the foregoing method embodiments. The processors and transceivers described in this disclosure may be implemented on integrated circuits (integrated circuit, ICs), analog ICs, radio frequency integrated circuits RFICs, mixed signal ICs, application specific integrated circuits (application specific integrated circuit, ASIC), printed circuit boards (printed circuit board, PCB), electronic devices, and the like. The processor and transceiver may also be fabricated using a variety of IC process technologies such as complementary metal oxide semiconductor (complementary metal oxide semiconductor, CMOS), N-type metal oxide semiconductor (NMOS), P-type metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (bipolar junction transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

The communication apparatus in the above embodiment description may be a terminal device, but the scope of the communication apparatus described in the present disclosure is not limited thereto, and the structure of the communication apparatus may not be limited by fig. 11. The communication means may be a stand-alone device or may be part of a larger device. For example, the communication device may be:

(1) A stand-alone integrated circuit IC, or chip, or a system-on-a-chip or subsystem;

(2) A set of one or more ICs, optionally including storage means for storing data, a computer program;

(3) An ASIC, such as a Modem (Modem);

(4) Modules that may be embedded within other devices;

(5) A receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handset, a mobile unit, a vehicle-mounted device, a network-side device, a cloud device, an artificial intelligent device, and the like;

(6) Others, and so on.

In the case where the communication device may be a chip or a chip system, please refer to fig. 12, which is a block diagram of a chip provided in an embodiment of the disclosure.

Chip 1100 includes processor 1101 and interface 1103. Wherein the number of processors 1101 may be one or more, and the number of interfaces 1103 may be a plurality.

For the case where the chip is used to implement the functions of the terminal device in the embodiments of the present disclosure:

an interface 1103 for receiving the code instruction and transmitting the code instruction to the processor.

A processor 1101 for executing code instructions to perform the transmission method of PRACH as described in some embodiments above.

For the case where the chip is used to implement the functions of the network side device in the embodiments of the present disclosure:

Optionally, the chip 1100 further comprises a memory 1102, the memory 1102 being used for storing the necessary computer programs and data.

Those of skill in the art will further appreciate that the various illustrative logical blocks (illustrative logical block) and steps (step) described in connection with the embodiments of the disclosure may be implemented by electronic hardware, computer software, or combinations of both. Whether such functionality is implemented as hardware or software depends upon the particular application and design requirements of the overall system. Those skilled in the art may implement the described functionality in varying ways for each particular application, but such implementation is not to be understood as beyond the scope of the embodiments of the present disclosure.

The embodiment of the present disclosure also provides a location information updating system, where the system includes the communication device as the terminal device and the communication device as the network side device in the embodiment of fig. 9, or the system includes the communication device as the terminal device and the communication device as the network side device in the embodiment of fig. 11.

The present disclosure also provides a readable storage medium having instructions stored thereon which, when executed by a computer, perform the functions of any of the method embodiments described above.

The present disclosure also provides a computer program product which, when executed by a computer, performs the functions of any of the method embodiments described above.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer programs. When the computer program is loaded and executed on a computer, the flow or functions described in accordance with the embodiments of the present disclosure are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer program may be stored in or transmitted from one computer readable storage medium to another, for example, by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means from one website, computer, server, or data center. The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.

Those of ordinary skill in the art will appreciate that: the various numbers of first, second, etc. referred to in this disclosure are merely for ease of description and are not intended to limit the scope of embodiments of this disclosure, nor to indicate sequencing.

At least one of the present disclosure may also be described as one or more, a plurality may be two, three, four or more, and the present disclosure is not limited. In the embodiment of the disclosure, for a technical feature, the technical features in the technical feature are distinguished by "first", "second", "third", "a", "B", "C", and "D", and the technical features described by "first", "second", "third", "a", "B", "C", and "D" are not in sequence or in order of magnitude.

The correspondence relationships shown in the tables in the present disclosure may be configured or predefined. The values of the information in each table are merely examples, and may be configured as other values, and the present disclosure is not limited thereto. In the case of the correspondence between the configuration information and each parameter, it is not necessarily required to configure all the correspondence shown in each table. For example, in the table in the present disclosure, the correspondence shown by some rows may not be configured. For another example, appropriate morphing adjustments, e.g., splitting, merging, etc., may be made based on the tables described above. The names of the parameters indicated in the tables may be other names which are understood by the communication device, and the values or expressions of the parameters may be other values or expressions which are understood by the communication device. When the tables are implemented, other data structures may be used, for example, an array, a queue, a container, a stack, a linear table, a pointer, a linked list, a tree, a graph, a structure, a class, a heap, a hash table, or a hash table.

Predefined in this disclosure may be understood as defining, predefining, storing, pre-negotiating, pre-configuring, curing, or pre-sintering.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

The foregoing is merely specific embodiments of the disclosure, but the protection scope of the disclosure is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the disclosure, and it is intended to cover the scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

A transmission method for a physical random access channel PRACH, applied to a terminal device, comprising:

determining the repetition times of PRACH;

and carrying out PRACH transmission according to the repetition times.
The method of claim 1, wherein the determining the number of repetitions of PRACH comprises:

the number of repetitions of the PRACH is determined according to a protocol specification.
The method of claim 1, wherein the determining the number of repetitions of PRACH comprises:

receiving indication information of network side equipment;

and determining the repetition times of the PRACH according to the indication information.
The method of claim 3, wherein the determining the number of repetitions of the PRACH based on the indication information comprises:

determining the repetition times of the PRACH as a preset value; wherein the indication information indicates that the repetition number of the PRACH is the preset value.
The method of claim 3, wherein the determining the number of repetitions of the PRACH based on the indication information comprises:

determining a candidate value set;

and selecting the repetition times from the candidate value sets according to the indication information.
The method of claim 3, wherein the determining the number of repetitions of the PRACH based on the indication information comprises:

Acquiring a random access configuration table, wherein the random access configuration table comprises repetition number information;

and acquiring the repetition times from the random access configuration table according to the index value indicated by the indication information.
The method according to any of claims 3 to 6, wherein the indication information is carried by a physical broadcast information MIB, or by a system information block SIB1, or by an extra payload of a physical broadcast channel PBCH.
The method of claim 7, wherein the indication information is carried by an existing bit field of the MIB or the SIB1 or by an extended bit field of the MIB or the SIB 1.
The method of claim 1, wherein the determining the number of repetitions of PRACH comprises:

acquiring SSB information of a synchronous signal block selected by the terminal equipment; wherein, each SSB information corresponds to repetition number information;

and acquiring the repetition number information corresponding to the selected SSB information, and taking the repetition number information as the repetition number of the PRACH.
The method of claim 1, wherein the determining the number of repetitions of PRACH comprises:

acquiring a Preamble of the terminal equipment; wherein, each Preamble corresponds to repetition number information;

And acquiring the repetition number information corresponding to the Preamble and taking the repetition number information as the repetition number of the PRACH.
The method of claim 1, wherein the determining the number of repetitions of PRACH comprises:

acquiring a random access opportunity RO of the terminal equipment; wherein, each RO corresponds to the repetition number information;

and acquiring the repetition number information corresponding to the RO and taking the repetition number information as the repetition number of the PRACH.
The PRACH transmission method is characterized by being applied to network side equipment and comprising the following steps:

and indicating the repetition times of PRACH of the terminal equipment, and receiving PRACH transmission of the repetition times sent by the terminal equipment.
The method according to claim 12, wherein the method further comprises:

and sending indication information to the terminal equipment so as to indicate the repetition times of PRACH of the terminal equipment according to the indication information.
The method according to claim 13, wherein the method further comprises:

and sending indication information to the terminal equipment to indicate the repetition times of the PRACH as a preset value according to the preset value indicated by the indication information.
The method according to claim 13, wherein the method further comprises:

And sending indication information to the terminal equipment so as to select the repetition times from the candidate value sets according to the indication information.
The method according to claim 13, wherein the method further comprises:

sending indication information to terminal equipment; wherein the indication information indicates an index value to obtain the repetition number from the random access configuration table according to the index value.
The method according to any of claims 13 to 16, wherein the indication information is carried by a physical broadcast information MIB, or by a system information block SIB1, or by an extra payload of a physical broadcast channel PBCH.
The method of claim 16, wherein the indication information is carried by an existing bit field of the MIB or SIB1 or by an extended bit field of the MIB or SIB 1.
A communication device, comprising:

a processing module, configured to determine a number of repetitions of the PRACH;

and the receiving and transmitting module is used for carrying out PRACH transmission according to the repetition times.
A communication device, comprising:

and the processing module is used for indicating the repetition times of the PRACH of the terminal equipment and receiving the PRACH transmission of the repetition times sent by the terminal equipment.
A communication device, characterized in that the device comprises a processor and a memory, the memory having stored therein a computer program, the processor executing the computer program stored in the memory to cause the device to perform the method of any one of claims 1 to 11; or the processor executing a computer program stored in the memory to cause the apparatus to perform the method of any one of claims 12 to 18.
A communication device, comprising: a processor and interface circuit;

the interface circuit is used for receiving code instructions and transmitting the code instructions to the processor;

the processor for executing the code instructions to perform the method of any one of claims 1 to 11; or executing the code instructions to perform the method of any one of claims 12 to 18.
A computer readable storage medium storing instructions that, when executed, cause the method of any one of claims 1 to 11 to be implemented; or which when executed causes a method as claimed in any one of claims 12 to 18.