CN110771240B

CN110771240B - Signal transmission method and device, terminal equipment and network equipment

Info

Publication number: CN110771240B
Application number: CN201880038020.4A
Authority: CN
Inventors: 徐伟杰; 尤心
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2018-07-25
Filing date: 2018-07-25
Publication date: 2021-04-20
Anticipated expiration: 2038-07-25
Also published as: CN110771240A; WO2020019182A1; TW202008817A

Abstract

The application discloses a signal transmission method and device, terminal equipment and network equipment, comprising the following steps: the terminal device sends a first message to a network device, wherein the first message at least comprises a first preamble, the first preamble is used as a demodulation reference signal of a first uplink data channel, and the first preamble occupies discontinuous frequency domain resources.

Description

Signal transmission method and device, terminal equipment and network equipment

Technical Field

The embodiment of the application relates to the technical field of mobile communication, in particular to a signal transmission method and device, terminal equipment and network equipment.

Background

In the fifth generation (5G, 5)^thIn the Generation) system, a Random Access Channel (RACH) process adopts a four-step process similar to Long Term Evolution (LTE), however, the time delay overhead of the four-step RACH (4-step RACH) process is relatively large, and is not suitable for a low-time-delay high-reliability scenario in 5G. In the standardization process of a New air interface (NR, New Radio), a scheme of two RACH (2-step RACH) processes is provided in consideration of the characteristics of low-delay high-reliability related services, and compared with a four-step RACH process, the access delay can be reduced.

For the first step of the two-step RACH procedure, the MSG1 includes two parts, namely, a Preamble (Preamble) and a Physical Uplink Shared Channel (PUSCH), where the Preamble can be used as a demodulation reference signal of the PUSCH, but the bandwidth of the Preamble is not sufficient to cover the bandwidth of the PUSCH in some cases, so that the Preamble cannot be used as the demodulation reference signal of the PUSCH.

Disclosure of Invention

The embodiment of the application provides a signal transmission method and device, terminal equipment and network equipment, and can improve the bandwidth of a Preamble.

The signal transmission method provided by the embodiment of the application comprises the following steps:

the terminal device sends a first message to a network device, wherein the first message at least comprises a first preamble, the first preamble is used as a demodulation reference signal of a first uplink data channel, and the first preamble occupies discontinuous frequency domain resources.

the method comprises the steps that network equipment receives a first message sent by terminal equipment, wherein the first message at least comprises a first lead code, the first lead code is used as a demodulation reference signal of a first uplink data channel, and the first lead code occupies discontinuous frequency domain resources.

The signal transmission device provided by the embodiment of the application comprises:

a transmission unit, configured to send a first message to a network device, where the first message includes at least a first preamble, where the first preamble is used as a demodulation reference signal of a first uplink data channel, and the first preamble occupies discontinuous frequency domain resources.

a transmission unit, configured to receive a first message sent by a terminal device, where the first message at least includes a first preamble, where the first preamble is used as a demodulation reference signal of a first uplink data channel, and the first preamble occupies discontinuous frequency domain resources.

The terminal device provided by the embodiment of the application comprises a processor and a memory. The memory is used for storing computer programs, and the processor is used for calling and running the computer programs stored in the memory and executing the signal transmission method.

The network equipment provided by the embodiment of the application comprises a processor and a memory. The memory is used for storing computer programs, and the processor is used for calling and running the computer programs stored in the memory and executing the signal transmission method.

The chip provided by the embodiment of the application is used for realizing the signal transmission method.

Specifically, the chip includes: and the processor is used for calling and running the computer program from the memory so that the equipment provided with the chip executes the signal transmission method.

A computer-readable storage medium provided in an embodiment of the present application is used for storing a computer program, and the computer program enables a computer to execute the signal transmission method described above.

The computer program product provided by the embodiment of the present application includes computer program instructions, and the computer program instructions enable a computer to execute the signal transmission method.

The computer program provided in the embodiments of the present application, when running on a computer, causes the computer to execute the signal transmission method described above.

Through the technical scheme, in the random access process, the first Preamble (Preamble) occupies discontinuous frequency domain resources (such as frequency domain resources adopting an interlace structure) to expand the occupied frequency domain resource range, so that the first Preamble can be used as a demodulation reference signal of a first uplink data channel (PUSCH). In other words, the frequency domain range occupied by the first Preamble (Preamble) can be expanded by using the discontinuous frequency domain resource structure, so that the first uplink data channel (PUSCH) can have enough frequency domain units in the frequency domain range for the first uplink data channel (PUSCH), thereby more flexibly scheduling the first uplink data channel (PUSCH) in the frequency domain range.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application;

FIG. 2 is a diagram illustrating a 4-step RACH procedure according to an embodiment of the present invention;

FIG. 3 is a diagram illustrating a 2-step RACH procedure according to an embodiment of the present invention;

fig. 4 is a schematic diagram of information transmitted in a first step in a 2-step RACH process according to an embodiment of the present application;

fig. 5 is a first flowchart illustrating a signal transmission method according to an embodiment of the present application;

FIG. 6 is a schematic diagram of an interlace structure provided in an embodiment of the present application;

fig. 7 is a second flowchart illustrating a signal transmission method according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of an information transmission apparatus according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a communication device according to an embodiment of the present application;

FIG. 10 is a schematic block diagram of a chip according to an embodiment of the present application;

fig. 11 is a schematic block diagram of a communication system according to an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long Term Evolution (Long Term Evolution, LTE) System, an LTE Frequency Division Duplex (FDD) System, an LTE Time Division Duplex (TDD), a Universal Mobile Telecommunications System (UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) communication System, or a 5G System.

Illustratively, a communication system 100 applied in the embodiment of the present application is shown in fig. 1. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, a terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within that coverage area. Optionally, the Network device 110 may be a Base Transceiver Station (BTS) in a GSM system or a CDMA system, a Base Station (NodeB, NB) in a WCDMA system, an evolved Node B (eNB or eNodeB) in an LTE system, or a wireless controller in a Cloud Radio Access Network (CRAN), or may be a Network device in a Mobile switching center, a relay Station, an Access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, a Network-side device in a 5G Network, or a Network device in a Public Land Mobile Network (PLMN) for future evolution, or the like.

The communication system 100 further comprises at least one terminal device 120 located within the coverage area of the network device 110. As used herein, "terminal equipment" includes, but is not limited to, connections via wireline, such as Public Switched Telephone Network (PSTN), Digital Subscriber Line (DSL), Digital cable, direct cable connection; and/or another data connection/network; and/or via a Wireless interface, e.g., to a cellular Network, a Wireless Local Area Network (WLAN), a digital television Network such as a DVB-H Network, a satellite Network, an AM-FM broadcast transmitter; and/or means of another terminal device arranged to receive/transmit communication signals; and/or Internet of Things (IoT) devices. A terminal device arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal", or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; personal Communications Systems (PCS) terminals that may combine cellular radiotelephones with data processing, facsimile, and data Communications capabilities; PDAs that may include radiotelephones, pagers, internet/intranet access, Web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. Terminal Equipment may refer to an access terminal, User Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, User terminal, wireless communication device, User agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device having Wireless communication capabilities, a computing device or other processing device connected to a Wireless modem, a vehicle mounted device, a wearable device, a terminal device in a 5G network, or a terminal device in a future evolved PLMN, etc.

Optionally, a Device to Device (D2D) communication may be performed between the terminal devices 120.

Alternatively, the 5G system or the 5G network may also be referred to as a New Radio (NR) system or an NR network.

Fig. 1 exemplarily shows one network device and two terminal devices, and optionally, the communication system 100 may include a plurality of network devices and may include other numbers of terminal devices within the coverage of each network device, which is not limited in this embodiment of the present application.

Optionally, the communication system 100 may further include other network entities such as a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

It should be understood that a device having a communication function in a network/system in the embodiments of the present application may be referred to as a communication device. Taking the communication system 100 shown in fig. 1 as an example, the communication device may include a network device 110 and a terminal device 120 having a communication function, and the network device 110 and the terminal device 120 may be the specific devices described above and are not described herein again; the communication device may also include other devices in the communication system 100, such as other network entities, for example, a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

To facilitate understanding of the technical solutions of the embodiments of the present application, the following describes a four-step RACH procedure and a two-step RACH procedure.

Referring to fig. 2, the four-step RACH procedure includes four steps, respectively:

in a first step (step1), the terminal device sends a preamble (i.e. preamble sequence) to the base station via MSG1(Message 1), where the preamble is a randomly selected preamble.

Step2, after detecting that the terminal device sends the preamble, the base station sends a Random Access Response (RAR) to the terminal device through MSG2(Message 2) to inform the terminal device of the uplink resource information that can be used when sending MSG3(Message 3), allocates a Radio Network Temporary Identity (RNTI) to the terminal device, and provides a time advance command (time advance command) to the terminal device;

step3, after receiving the random access response, the terminal device sends MSG3 message in the uplink resource appointed by the random access response message, wherein the message carries a temporary identification information specific to the terminal device;

in the fourth step (step4), the base station sends a contention resolution Message to the terminal device through the MSG4(Message 4), and allocates uplink transmission resources to the terminal device. When the terminal device receives the MSG4 sent by the base station, it will detect whether the specific temporary identifier of the terminal device sent by the terminal device on the MSG3 is included in the contention resolution message sent by the base station, if it is included, it indicates that the random access procedure of the terminal device is successful, otherwise, it is considered that the random access procedure is failed, and the terminal device needs to initiate the random access procedure from the first step again.

The time delay overhead of the four-step RACH process is relatively large, in the standardization process of NR, the characteristic of low-time delay and high reliability related service is considered, the scheme of the two-step RACH process is provided, and compared with the four-step RACH process, the access time delay can be reduced. Referring to fig. 3, the two-step RACH procedure includes two steps, respectively:

in a first step (step1), the terminal device sends a preamble (i.e. preamble sequence) and other information to the base station via MSG 1.

Here, the other information may also be referred to as Uplink data, and is transmitted via a Physical Uplink Shared Channel (PUSCH), for example, terminal device specific temporary identification information.

And a second step (step2), after detecting that the terminal equipment sends PUSCH, the base station sends a random access response message and a contention resolution message to the terminal equipment through the MSG 2.

In the two-step RACH procedure, it is equivalent to combine the first and third steps of the four-step RACH procedure into the first step of the two-step RACH procedure, and combine the second and fourth steps of the four-step RACH procedure into the second step of the two-step RACH procedure. Therefore, in the first step of the two-step RACH, the terminal device needs to transmit a Preamble (Preamble) and a PUSCH. As shown in fig. 4, a Cyclic Prefix (CP) is set before the preamble and between the preamble and the PUSCH, and a guard slot (GT) is set after the PUSCH.

The Preamble can play a role in time-frequency synchronization and channel estimation, and for a reference signal used for demodulation of the PUSCH, there are two schemes: one is to demodulate PUSCH by using Preamble as a Reference Signal, and the other is to demodulate PUSCH by (DMRS). The first scheme has the advantage that resources occupied by the DMRS can be saved by using the Preamble as the demodulation reference signal. If the Preamble is to be used as a demodulation reference signal of the PUSCH, a Physical Resource Block (PRB) that needs to be occupied by the PUSCH has a signal of the Preamble, that is, the PRB occupied by the Preamble includes the PRB occupied by the PUSCH. However, since the Preamble bandwidth is related to the configured PRACH Preamble format, as shown in table 1 and table 2.

Table 1: PRACH preamble formats (L)_RA＝839，△f^RA∈{1.25,5}kHz)

Table 2: preamble formats (L)_RA＝139，△f^RA＝15·2^μkHz，μ∈{0,1,2,3})

For example, for formats 0, 1, and 2, if the sequence length of the Preamble is 839 and the subcarrier spacing is 1.25kHz, the Preamble occupies 1048.75kHz, and if the PUSCH employs subcarrier spacing of 15kHz, 30kHz, 60kHz, 120kHz, and 240kHz, the bandwidth occupied by the Preamble is equivalent to 6, 3, 1.5, 0.75, and 0.375 PRB of the PUSCH, respectively. If Preamble is to be used as the demodulation reference signal of PUSCH, it must have enough bandwidth to cover the bandwidth of PUSCH carrying MSG3, thereby being used as the demodulation reference signal of PUSCH. The method and the device for demodulating the PUSCH can solve the problem that the bandwidth is too small when the preamble is used as a demodulation reference signal of the PUSCH when the preamble and the PUSCH are combined in the first step under the scene of a two-step RACH process.

Fig. 5 is a first schematic flow chart of a signal transmission method according to an embodiment of the present application, and as shown in fig. 5, the signal transmission method includes the following steps:

step 501: the terminal device sends a first message to a network device, wherein the first message at least comprises a first preamble, the first preamble is used as a demodulation reference signal of a first uplink data channel, and the first preamble occupies discontinuous frequency domain resources.

In the embodiment of the application, the terminal device may be any device capable of communicating with a network device, such as a mobile phone, a tablet computer, a notebook computer, a vehicle-mounted terminal, and the like.

In this embodiment, the network device may be a base station, for example, a gbb in 5G, an eNB in LTE, or the like.

In this embodiment of the present application, in a random access procedure, a terminal device sends a first message to a network device, where the first message is referred to as MSG1, and the first message includes at least a first preamble, where the first preamble is used as a demodulation reference signal of a first uplink data channel, and the first preamble occupies discontinuous frequency domain resources.

In the embodiment of the present application, the terminal device may perform a two-step RACH procedure (refer to fig. 3), but is not limited to this, and may also perform a four-step RACH procedure (refer to fig. 2), where the two-step RACH procedure is also referred to as a first type random access procedure, and the four-step RACH procedure is also referred to as a second type random access procedure. In step 501, when the random access procedure belongs to a first type of random access procedure, the first message further includes the first uplink data channel, where the first uplink data channel includes, for example, temporary identification information specific to the terminal device.

In an embodiment, the first preamble is used as a demodulation reference signal of a first uplink data channel, and the first preamble occupies discontinuous frequency domain resources, and further, the frequency domain units occupied by the first preamble have a first frequency domain interval therebetween. Further, the first preamble occupies one or more frequency domain units, and the first frequency domain interval includes one or more frequency domain units. In one example, the granularity of the frequency domain unit is a subcarrier, or a PRB, or a Resource Block Group (RBG), or a subband.

For example, preamble is sent in RACH procedure (which may be two-step RACH procedure or four-step RACH procedure), where the preamble uses interlace structure, as shown in fig. 6, that is, the preamble signal no longer occupies continuous subcarriers, but occupies certain intervals between subcarriers, and the frequency domain bandwidth occupied by the preamble signal is thus enlarged, so that there are enough PRBs for PUSCH in the enlarged frequency domain bandwidth, thereby scheduling PUSCH more flexibly in the enlarged frequency domain range.

In an embodiment, the terminal device receives first configuration information sent by the network device, where the first configuration information includes a first parameter, and the first parameter is used to determine a first frequency domain interval between frequency domain units occupied by the first preamble. Further, the first configuration information is used to indicate a random access parameter, and the first configuration information is carried in a system message or a Radio Resource Control (RRC) signaling. For example, in the configuration information of the RACH, corresponding configuration information may be added, for example, interlace information such as 1/2, 1/3, 1/6 and the like is added in PRACH preamble format, which respectively represents that a preamble signal occupies one subcarrier every 2, 3, 6 subcarriers.

Based on the above technical solution, in this embodiment of the application, a first bandwidth corresponding to a frequency domain resource occupied by the first uplink data channel is located within a range of a second bandwidth corresponding to the frequency domain resource occupied by the first preamble. For example: the frequency domain resource occupied by preamble occupies one subcarrier for every 3 subcarriers, and the occupied bandwidth is from subcarrier n1 to subcarrier n2, then the PUSCH can occupy some subcarriers in the bandwidth range from subcarrier n1 to subcarrier n 2.

In this embodiment, in order to distinguish whether the demodulation reference signal of the first uplink data channel is the first preamble or the DMRS, an indication information may be added to the first configuration information, so as to indicate whether the demodulation reference signal of the first uplink data channel is the first preamble or the DMRS. When the indication information in the first configuration information is used to indicate that the demodulation reference signal of the first uplink data channel is the first preamble, the first configuration information further configures a first frequency domain interval between frequency domain units occupied by the first preamble.

In the foregoing solution of the embodiment of the present application, the first uplink data channel may be a predefined or configured uplink data channel, but is not limited to this, and the first uplink data channel may also be an uplink data channel based on scheduling.

Fig. 7 is a schematic flowchart of a second signal transmission method according to an embodiment of the present application, and as shown in fig. 7, the signal transmission method includes the following steps:

step 701: the method comprises the steps that network equipment receives a first message sent by terminal equipment, wherein the first message at least comprises a first lead code, the first lead code is used as a demodulation reference signal of a first uplink data channel, and the first lead code occupies discontinuous frequency domain resources.

In this embodiment of the present application, in a random access process, a network device receives a first message sent by a terminal device, where the first message is referred to as MSG1, and the first message includes at least a first preamble, where the first preamble is used as a demodulation reference signal of a first uplink data channel, and the first preamble occupies discontinuous frequency domain resources.

In the embodiment of the present application, the terminal device may perform a two-step RACH procedure (refer to fig. 3), but is not limited to this, and may also perform a four-step RACH procedure (refer to fig. 2), where the two-step RACH procedure is also referred to as a first type random access procedure, and the four-step RACH procedure is also referred to as a second type random access procedure. In step 701, when the random access procedure belongs to a first type of random access procedure, the first message further includes the first uplink data channel, where the first uplink data channel includes, for example, temporary identification information specific to the terminal device.

In an embodiment, the network device sends first configuration information to the terminal device, where the first configuration information includes a first parameter, and the first parameter is used to determine a first frequency domain interval between frequency domain units occupied by the first preamble. Further, the first configuration information is used to indicate a random access parameter, and the first configuration information is carried in a system message or a Radio Resource Control (RRC) signaling. For example, in the configuration information of the RACH, corresponding configuration information may be added, for example, interlace information such as 1/2, 1/3, 1/6 and the like is added in PRACH preamble format, which respectively represents that a preamble signal occupies one subcarrier every 2, 3, 6 subcarriers.

Fig. 8 is a schematic structural diagram of a signal transmission device according to an embodiment of the present application, and the following describes a structure and a function of an information transmission device according to an embodiment of the present application with reference to two scenarios.

Scene one:

as shown in fig. 8, the apparatus includes:

a transmission unit 801, configured to send a first message to a network device, where the first message includes at least a first preamble, where the first preamble is used as a demodulation reference signal of a first uplink data channel, and the first preamble occupies discontinuous frequency domain resources.

In an embodiment, the first preamble occupies non-contiguous frequency domain resources, including:

the frequency domain units occupied by the first preamble have a first frequency domain interval.

In an embodiment, the transmission unit 801 is further configured to receive first configuration information sent by the network device, where the first configuration information includes a first parameter, and the first parameter is used to determine a first frequency domain interval between frequency domain units occupied by the first preamble.

In an embodiment, the first configuration information is used to indicate a random access parameter, and the first configuration information is carried in a system message or an RRC signaling.

In an embodiment, the first preamble occupies one or more frequency domain units and the first frequency domain interval includes one or more frequency domain units.

In an embodiment, the granularity of the frequency domain unit is a subcarrier, or a PRB, or an RBG, or a subband.

In an embodiment, in case of a first type of random access procedure, the first message further includes the first uplink data channel.

In an embodiment, a first bandwidth corresponding to the frequency domain resource occupied by the first uplink data channel is located within a second bandwidth corresponding to the frequency domain resource occupied by the first preamble.

Scene two:

as shown in fig. 8, the apparatus includes:

a transmission unit 801, configured to receive a first message sent by a terminal device, where the first message includes at least a first preamble, where the first preamble is used as a demodulation reference signal of a first uplink data channel, and the first preamble occupies discontinuous frequency domain resources.

In an embodiment, the transmission unit 801 is further configured to send first configuration information to the terminal device, where the first configuration information includes a first parameter, and the first parameter is used to determine a first frequency domain interval between frequency domain units occupied by the first preamble.

It should be understood by those skilled in the art that the related description of the signal transmission device in the embodiments of the present application can be understood by referring to the related description of the signal transmission method in the embodiments of the present application.

Fig. 9 is a schematic structural diagram of a communication device 600 according to an embodiment of the present application. The communication device may be a terminal device or a network device, and the communication device 600 shown in fig. 9 includes a processor 610, and the processor 610 may call and execute a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 9, the communication device 600 may further include a memory 620. From the memory 620, the processor 610 may call and run a computer program to implement the method in the embodiment of the present application.

The memory 620 may be a separate device from the processor 610, or may be integrated into the processor 610.

Optionally, as shown in fig. 9, the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, and specifically, may transmit information or data to the other devices or receive information or data transmitted by the other devices.

The transceiver 630 may include a transmitter and a receiver, among others. The transceiver 630 may further include one or more antennas.

Optionally, the communication device 600 may specifically be a network device in the embodiment of the present application, and the communication device 600 may implement a corresponding process implemented by the network device in each method in the embodiment of the present application, which is not described herein again for brevity.

Optionally, the communication device 600 may specifically be a mobile terminal/terminal device in this embodiment, and the communication device 600 may implement a corresponding process implemented by the mobile terminal/terminal device in each method in this embodiment, which is not described herein again for brevity.

Fig. 10 is a schematic structural diagram of a chip of an embodiment of the present application. The chip 700 shown in fig. 10 includes a processor 710, and the processor 710 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 10, the chip 700 may further include a memory 720. From the memory 720, the processor 710 can call and run a computer program to implement the method in the embodiment of the present application.

The memory 720 may be a separate device from the processor 710, or may be integrated into the processor 710.

Optionally, the chip 700 may further include an input interface 730. The processor 710 may control the input interface 730 to communicate with other devices or chips, and in particular, may obtain information or data transmitted by other devices or chips.

Optionally, the chip 700 may further include an output interface 740. The processor 710 may control the output interface 740 to communicate with other devices or chips, and in particular, may output information or data to the other devices or chips.

Optionally, the chip may be applied to the network device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the chip may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, and for brevity, no further description is given here.

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

Fig. 11 is a schematic block diagram of a communication system 900 provided in an embodiment of the present application. As shown in fig. 9, the communication system 900 includes a terminal device 910 and a network device 920.

The terminal device 910 may be configured to implement the corresponding function implemented by the terminal device in the foregoing method, and the network device 920 may be configured to implement the corresponding function implemented by the network device in the foregoing method, for brevity, which is not described herein again.

It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (DDR SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchronous link SDRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the above memories are exemplary but not limiting illustrations, for example, the memories in the embodiments of the present application may also be Static Random Access Memory (SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (enhanced SDRAM, ESDRAM), Synchronous Link DRAM (SLDRAM), Direct Rambus RAM (DR RAM), and the like. That is, the memory in the embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

The embodiment of the application also provides a computer readable storage medium for storing the computer program.

Optionally, the computer-readable storage medium may be applied to the network device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the network device in each method in the embodiment of the present application, which is not described herein again for brevity.

Optionally, the computer-readable storage medium may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

Embodiments of the present application also provide a computer program product comprising computer program instructions.

Optionally, the computer program product may be applied to the network device in the embodiment of the present application, and the computer program instructions enable the computer to execute corresponding processes implemented by the network device in the methods in the embodiment of the present application, which are not described herein again for brevity.

Optionally, the computer program product may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the methods in the embodiment of the present application, which are not described herein again for brevity.

The embodiment of the application also provides a computer program.

Optionally, the computer program may be applied to the network device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute the corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the computer program may be applied to the mobile terminal/terminal device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

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 implementation. 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 application.

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

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some interfaces, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of signal transmission, the method comprising:

the terminal device sends a first message to a network device, where the first message at least includes a first preamble, where the first preamble is used as a demodulation reference signal of a first uplink data channel, the first preamble occupies discontinuous frequency domain resources, and a first bandwidth corresponding to the frequency domain resources occupied by the first uplink data channel is located within a range of a second bandwidth corresponding to the frequency domain resources occupied by the first preamble.

2. The method of claim 1, wherein the first preamble occupies non-contiguous frequency domain resources, comprising:

3. The method of claim 2, wherein the method further comprises:

the terminal device receives first configuration information sent by the network device, wherein the first configuration information includes a first parameter, and the first parameter is used for determining a first frequency domain interval between frequency domain units occupied by the first preamble.

4. The method of claim 3, wherein the first configuration information is used for indicating random access parameters, and is carried in a system message or Radio Resource Control (RRC) signaling.

5. The method of any of claims 2 to 4, wherein the first preamble occupies one or more frequency domain units and the first frequency domain interval comprises one or more frequency domain units.

6. The method according to any of claims 2 to 4, wherein the granularity of the frequency domain units is sub-carriers, or physical resource blocks, PRBs, or resource block groups, RBGs, or sub-bands.

7. The method of any of claims 1 to 4, wherein the first message further comprises the first uplink data channel.

8. A method of signal transmission, the method comprising:

the method comprises the steps that network equipment receives a first message sent by terminal equipment, wherein the first message at least comprises a first lead code, the first lead code is used as a demodulation reference signal of a first uplink data channel, the first lead code occupies discontinuous frequency domain resources, and a first bandwidth corresponding to the frequency domain resources occupied by the first uplink data channel is located in a range of a second bandwidth corresponding to the frequency domain resources occupied by the first lead code.

9. The method of claim 8, wherein the first preamble occupies non-contiguous frequency domain resources, comprising:

10. The method of claim 9, wherein the method further comprises:

the network device sends first configuration information to the terminal device, wherein the first configuration information includes a first parameter, and the first parameter is used for determining a first frequency domain interval between frequency domain units occupied by the first preamble.

11. The method of claim 10, wherein the first configuration information is used for indicating random access parameters, and the first configuration information is carried in a system message or RRC signaling.

12. The method of any of claims 9 to 11, wherein the first preamble occupies one or more frequency domain units and the first frequency domain interval comprises one or more frequency domain units.

13. The method according to any of claims 9 to 11, wherein the granularity of the frequency domain elements is sub-carriers, or PRBs, or RBGs, or sub-bands.

14. The method of any of claims 8 to 11, wherein the first message further comprises the first uplink data channel.

15. A signal transmission apparatus, the apparatus comprising:

a transmission unit, configured to send a first message to a network device, where the first message includes at least a first preamble, where the first preamble is used as a demodulation reference signal of a first uplink data channel, the first preamble occupies discontinuous frequency domain resources, and a first bandwidth corresponding to the frequency domain resources occupied by the first uplink data channel is located within a range of a second bandwidth corresponding to the frequency domain resources occupied by the first preamble.

16. The apparatus of claim 15, wherein the first preamble occupies non-contiguous frequency domain resources, comprising:

17. The apparatus of claim 16, wherein the transmission unit is further configured to receive first configuration information sent by the network device, wherein the first configuration information includes a first parameter for determining a first frequency-domain interval between frequency-domain units occupied by the first preamble.

18. The apparatus of claim 17, wherein the first configuration information is used to indicate random access parameters, and the first configuration information is carried in a system message or RRC signaling.

19. The apparatus of any one of claims 16 to 18, wherein the first preamble occupies one or more frequency domain units and the first frequency domain interval comprises one or more frequency domain units.

20. The apparatus according to any of claims 16-18, wherein the granularity of the frequency-domain elements is subcarriers, or PRBs, or RBGs, or subbands.

21. The apparatus of any of claims 15 to 18, wherein the first message further comprises the first uplink data channel.

22. A signal transmission apparatus, the apparatus comprising:

a transmission unit, configured to receive a first message sent by a terminal device, where the first message at least includes a first preamble, where the first preamble is used as a demodulation reference signal of a first uplink data channel, the first preamble occupies discontinuous frequency domain resources, and a first bandwidth corresponding to the frequency domain resources occupied by the first uplink data channel is located within a range of a second bandwidth corresponding to the frequency domain resources occupied by the first preamble.

23. The apparatus of claim 22, wherein the first preamble occupies non-contiguous frequency domain resources, comprising:

24. The apparatus of claim 23, wherein the transmission unit is further configured to transmit first configuration information to the terminal device, wherein the first configuration information comprises a first parameter for determining a first frequency-domain interval between frequency-domain units occupied by the first preamble.

25. The apparatus of claim 24, wherein the first configuration information is used to indicate random access parameters, and is carried in a system message or RRC signaling.

26. The apparatus of any one of claims 23 to 25, wherein the first preamble occupies one or more frequency domain units and the first frequency domain interval comprises one or more frequency domain units.

27. The apparatus according to any of claims 23-25, wherein the granularity of the frequency-domain elements is subcarriers, or PRBs, or RBGs, or subbands.

28. The apparatus of any one of claims 22 to 25, wherein the first message further comprises the first uplink data channel.

29. A terminal device, comprising: a processor and a memory for storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory to perform the method of any of claims 1 to 7.

30. A network device, comprising: a processor and a memory for storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory to perform the method of any of claims 8 to 14.

31. A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 1 to 7.

32. A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 8 to 14.

33. A computer-readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 1 to 7.

34. A computer-readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 8 to 14.