CN110784933A

CN110784933A - Information transmission method, terminal and network equipment

Info

Publication number: CN110784933A
Application number: CN201810858289.9A
Authority: CN
Inventors: 刘思綦; 潘学明; 吴凯; 孙鹏
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2018-07-31
Filing date: 2018-07-31
Publication date: 2020-02-11
Anticipated expiration: 2038-07-31
Also published as: WO2020024811A1; CN110784933B

Abstract

The invention discloses an information transmission method, a terminal and network equipment, wherein the method comprises the following steps: sending a message I and filling information of a random access process to network equipment on a target transmission resource of a target transmission channel; wherein the message one and the padding information are frequency division multiplexed. The terminal of the embodiment of the invention jointly sends the message I and the filling information on the target transmission resource, thereby further improving the bandwidth utilization rate on the basis of ensuring the normal operation of the random access process on the authorized frequency band, ensuring the availability of the idle transmission channel on the unauthorized frequency band and ensuring the normal operation of the random access process.

Description

Information transmission method, terminal and network equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to an information transmission method, a terminal, and a network device.

Background

In a mobile communication system, the processes of initial access, system information acquisition, link recovery and the like can be realized through a random access process, and a message one (message1, msg1) of the random access process in a New Radio (NR) introduces two sequences, namely 139 and 839. For long sequences L839, the subcarrier spacing (SCS) of msg1 may be 1.25kHz or 5 kHz. For the long sequence L139, the preamble subcarrier spacing may be 15/30/60/120/kHz. The Physical Random Access Channel transmission opportunity (RO) is defined as the time-frequency resource required for transmitting a given format (format) msg1, and the bandwidth occupied by one RO at different subcarrier intervals is shown in table 1:

TABLE 1

Length of sequence	SCS(kHz)	Bandwidth (MHz)
			839	1.25	1.08
839	5	4.32
			139	15	2.16
139	30	4.32
			139	60	8.64
139	120	17.28

In a mobile communication system, the available bandwidth of the licensed band may be much larger than the bandwidth occupied by one RO, and if only msg1 is transmitted in the RO of the licensed band, the resource utilization rate may be low.

Further, the unlicensed band may be used as a supplement to the licensed band (licensed band), so as to help the operator to expand the capacity of the service. Since the unlicensed band is shared by multiple Radio Access Technologies (RATs), such as WiFi, radar, Long term evolution licensed Assisted Access (LTE-LAA), etc., the unlicensed band must meet certain regulations when being used to ensure that all devices can fairly use the resource, such as Listen Before Talk (LBT), Maximum Channel Occupancy Time (MCOT), occupied bandwidth (OCB), etc. Wherein, for the 5GHz band, the OCB is greater than or equal to 80% of the nominal channel bandwidth (nominal channel bandwidth), and for the 60GHz band, the OCB is greater than or equal to 70% of the nominal channel bandwidth.

In an unlicensed frequency band, a terminal needs to perform LBT first, and can use the channel after judging that the channel is idle, the terminal can perform LBT according to the granularity of 20MHz, and after the terminal seizes the channel, the terminal may still cannot use the channel even if the terminal seizes resources because the frequency domain bandwidth of one RO may not meet the OCB requirement of the unlicensed frequency band.

Disclosure of Invention

The embodiment of the invention provides an information transmission method, a terminal and network equipment, which aim to solve the problem of msg1 transmission in the random access process.

In a first aspect, an embodiment of the present invention provides an information transmission method, applied to a terminal side, including:

sending a message I and filling information of a random access process to network equipment on a target transmission resource of a target transmission channel; wherein the message one and the padding information are frequency division multiplexed.

In a second aspect, an embodiment of the present invention further provides a terminal, including:

a sending module, configured to send a message one of a random access procedure and padding information to a network device on a target transmission resource of a target transmission channel; wherein the message one and the padding information are frequency division multiplexed.

In a third aspect, an embodiment of the present invention provides a terminal, where the terminal includes a processor, a memory, and a computer program stored in the memory and running on the processor, and when the computer program is executed by the processor, the steps of the information transmission method are implemented.

In a fourth aspect, an embodiment of the present invention provides an information transmission method, applied to a network device side, including:

receiving a message I and filling information of a random access process on a target transmission resource of a target transmission channel; wherein the message one and the padding information are frequency division multiplexed;

and feeding back a response message to the terminal according to the message I.

In a fifth aspect, an embodiment of the present invention provides a network device, including:

a receiving module, configured to receive a message one and padding information in a random access procedure on a target transmission resource of a target transmission channel; wherein the message one and the padding information are frequency division multiplexed;

and the response module is used for feeding back a response message to the terminal according to the first message.

In a sixth aspect, an embodiment of the present invention further provides a network device, where the network device includes a processor, a memory, and a computer program stored in the memory and running on the processor, and the processor implements the steps of the information transmission method when executing the computer program.

In a seventh aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when being executed by a processor, the computer program implements the steps of the information transmission method on the terminal side or the network device side.

Therefore, the terminal of the embodiment of the invention jointly sends the message I and the filling information on the target transmission resource, thereby further improving the bandwidth utilization rate on the basis of ensuring the normal operation of the random access process on the authorized frequency band, ensuring the availability of the idle transmission channel on the unauthorized frequency band and ensuring the normal operation of the random access process.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 shows a block diagram of a mobile communication system to which an embodiment of the present invention is applicable;

fig. 2 is a flowchart illustrating an information transmission method at a terminal side according to an embodiment of the present invention;

FIGS. 3-6 are schematic diagrams illustrating a location relationship between a target transmission resource and a target transmission channel according to embodiments of the present invention;

FIGS. 7-11 are schematic diagrams illustrating resource mapping between a message I and padding information according to an embodiment of the invention;

FIG. 12 is a diagram illustrating resource listening in scenario one according to an embodiment of the present invention;

fig. 13 is a schematic diagram illustrating resource listening in scenario two according to an embodiment of the present invention;

FIG. 14 is a schematic diagram of resource listening in scenario three according to an embodiment of the present invention;

fig. 15 is a schematic block diagram of a terminal according to an embodiment of the present invention;

FIG. 16 shows a block diagram of a terminal according to an embodiment of the invention;

fig. 17 is a flowchart illustrating an information transmission method of a network device according to an embodiment of the present invention;

FIG. 18 is a block diagram of a network device according to an embodiment of the present invention;

fig. 19 shows a block diagram of a network device according to an embodiment of the invention.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. In the description and in the claims "and/or" means at least one of the connected objects.

The techniques described herein are not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced) systems, and may also be used for various wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" are often used interchangeably. CDMA systems may implement Radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA), and so on. UTRA includes Wideband CDMA (Wideband code division Multiple Access, WCDMA) and other CDMA variants. TDMA systems may implement radio technologies such as Global System for Mobile communications (GSM). The OFDMA system may implement radio technologies such as Ultra Mobile Broadband (UMB), evolved-UTRA (E-UTRA), IEEE 802.11(Wi-Fi), IEEE 802.16(WiMAX), IEEE 802.20, Flash-OFDM, etc. UTRA and E-UTRA are parts of the Universal Mobile Telecommunications System (UMTS). LTE and higher LTE (e.g., LTE-A) are new UMTS releases that use E-UTRA. UTRA, E-UTRA, UMTS, LTE-A, and GSM are described in documents from an organization named "third Generation partnership project" (3 GPP). CDMA2000 and UMB are described in documents from an organization named "third generation partnership project 2" (3GPP 2). The techniques described herein may be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. However, the following description describes the NR system for purposes of example, and NR terminology is used in much of the description below, although the techniques may also be applied to applications other than NR system applications.

The following description provides examples and does not limit the scope, applicability, or configuration set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the spirit and scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For example, the described methods may be performed in an order different than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Referring to fig. 1, fig. 1 is a block diagram of a wireless communication system to which an embodiment of the present invention is applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may also be referred to as a terminal Device or a User Equipment (UE), where the terminal 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), a Wearable Device (Wearable Device), or a vehicle-mounted Device, and the specific type of the terminal 11 is not limited in the embodiment of the present invention. The network device 12 may be a Base Station or a core network, wherein the Base Station may be a 5G or later-version Base Station (e.g., a gNB, a 5G NR NB, etc.), or a Base Station in other communication systems (e.g., an eNB, a WLAN access point, or other access points, etc.), wherein the Base Station may be referred to as a node B, an evolved node B, an access point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, or some other suitable terminology in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, it should be noted that, in the embodiment of the present invention, only the Base Station in the NR system is taken as an example, but does not limit the specific type of base station.

The base stations may communicate with the terminals 11 under the control of a base station controller, which may be part of the core network or some of the base stations in various examples. Some base stations may communicate control information or user data with the core network through a backhaul. In some examples, some of the base stations may communicate with each other, directly or indirectly, over backhaul links, which may be wired or wireless communication links. A wireless communication system may support operation on multiple carriers (waveform signals of different frequencies). A multi-carrier transmitter can transmit modulated signals on the multiple carriers simultaneously. For example, each communication link may be a multi-carrier signal modulated according to various radio technologies. Each modulated signal may be transmitted on a different carrier and may carry control information (e.g., reference signals, control channels, etc.), overhead information, data, and so on.

The base station may communicate wirelessly with the terminal 11 via one or more access point antennas. Each base station may provide communication coverage for a respective coverage area. The coverage area of an access point may be divided into sectors that form only a portion of the coverage area. A wireless communication system may include different types of base stations (e.g., macro, micro, or pico base stations). The base stations may also utilize different radio technologies, such as cellular or WLAN radio access technologies. The base stations may be associated with the same or different access networks or operator deployments. The coverage areas of different base stations (including coverage areas of base stations of the same or different types, coverage areas utilizing the same or different radio technologies, or coverage areas belonging to the same or different access networks) may overlap.

The communication links in a wireless communication system may comprise an Uplink for carrying Uplink (UL) transmissions (e.g., from terminal 11 to network device 12) or a Downlink for carrying Downlink (DL) transmissions (e.g., from network device 12 to terminal 11). The UL transmission may also be referred to as reverse link transmission, while the DL transmission may also be referred to as forward link transmission. Downlink transmissions may be made using licensed frequency bands, unlicensed frequency bands, or both. Similarly, uplink transmissions may be made using licensed frequency bands, unlicensed frequency bands, or both.

The information transmission method of the embodiment of the present invention is applied to a terminal side, and as shown in fig. 2, the method includes the following steps:

step 21: sending a message I of a random access process and at least one filling information to network equipment on a target transmission resource of a target transmission channel; wherein the message one and the padding information are frequency division multiplexed.

The target transmission channel may be located in a licensed frequency band or an unlicensed frequency band. And sending a message I and filling information for other purposes to the network equipment through part or all of transmission resources of the target transmission channel of the authorized frequency band, so that the utilization rate of the resources of the authorized frequency band can be improved. In order to ensure that the unlicensed frequency band can be used normally under different radio access technologies, the unlicensed frequency band must meet certain regulations, such as LBT, MCOT, OCB, etc., when being used. To meet the OCB requirement, the bandwidth occupied by the target transmission resource (referred to herein as the bandwidth range spanned by the target transmission resource) is greater than or equal to a preset percentage of the nominal channel bandwidth of the target transmission channel. The terminal sends a message I of a random access process and at least one filling information used for other purposes to the network equipment through a target transmission resource of a target transmission channel on an unlicensed frequency band, the message I and the filling information are frequency division multiplexed, and the message I and the filling information are discretely arranged on a frequency domain resource, so that the message I and the filling information which are discretely arranged in the frequency domain can ensure that the bandwidth span occupied by the target transmission channel exceeds a preset percentage (such as 70 percent or 80 percent) of the nominal bandwidth of the target transmission channel, and the transmission of the unlicensed frequency band can be ensured to meet the OCB requirement.

The target transmission channel in the embodiment of the invention satisfies one of the following position relations:

when the target transport channel includes at least one physical random access channel transmission opportunity RO, the target transport resource includes at least one RO and at least one other channel, and the other channel is located in a frequency domain portion of the target transport channel except for all ROs. Assuming that the target transmission channel includes 4 ROs, such as RO1, RO2, RO3, and RO4, the target transmission resource includes RO1 and at least one other channel located in a frequency domain portion of the target transmission channel other than RO1, RO2, RO3, and RO 4. At least one RO exists in the same time frequency domain range of the target transmission channel, and the terminal can send a message I on one RO and send filling information on other channels. The selected RO may be predefined (e.g., agreed upon) or configured by the network device, and the other channels may be predefined or configured by the network device. And for the transmission scene of the unauthorized frequency band, the two channels with the farthest frequency domain positions in at least one other channel and at least one RO in the target transmission resource meet the OCB requirement.

Alternatively, when the at least two ROs are included in the target transmission channel, the target transmission resource includes a plurality of the at least two ROs. It is assumed that the target transmission channel includes 4 ROs, such as RO1, RO2, RO3, and RO4, and the target transmission resource includes RO1 and RO 4. Wherein, at least one RO exists in the same time frequency domain range of the target transmission channel, the terminal can send a message I on one RO and send filling information on other ROs. Wherein the selected RO (e.g., the RO transmitting the message one and/or the RO transmitting the padding information) may be predefined or network device configured. And for the transmission scene of the unauthorized frequency band, the two channels with the farthest frequency domain positions in at least one other channel and at least one RO in the target transmission resource meet the OCB requirement.

The relationship between the target transmission resource and the target transmission channel is briefly described above, and the position relationship between the target transmission resource and the target transmission channel will be further described with reference to the drawings.

Wherein the other channels comprise at least one of the following resources:

a first resource that is symmetric to the RO with respect to a frequency center frequency domain of the target transmission channel; the frequency domain symmetry referred to herein may be: the start position of the other channel is frequency domain symmetric with the start position of the selected RO, the end position of the other channel is frequency domain symmetric with the end position of the selected RO, the start position of the other channel is frequency domain symmetric with the end position of the selected RO, the end position of the other channel is frequency domain symmetric with the start position of the selected RO, the start and end positions of the other channel are frequency domain symmetric with the start and end positions of the selected RO, and the like. As shown in fig. 3, the selected RO is located in a low frequency part of the target transmission channel, and then the other channels are located in a high frequency part symmetrical to the RO frequency domain. Alternatively, as shown in fig. 4, the selected RO is located in a high frequency portion of the target transmission channel, and the other channels are located in a low frequency portion symmetrical to the RO frequency domain. Wherein, the messages in fig. 3 and 4 are all sent in the selected RO.

A second resource offset from a high frequency boundary of the target transmission channel by the first offset amount; here, the start position of the other channel may be located at a position shifted from the high-frequency boundary of the target transmission channel by the first offset amount, or the end position of the other channel may be located at a position shifted from the high-frequency boundary of the target transmission channel by the first offset amount, or the center frequency point of the other channel may be located at a position shifted from the high-frequency boundary of the target transmission channel by the first offset amount. It should be noted that the values of the first offsets corresponding to the above three scenarios may be the same or different. As shown in fig. 5, the selected RO is located near the center frequency of the target transmission channel, and the end position of the other channel 1 is located at a position shifted from the high frequency boundary of the target transmission channel by the first shift amount (offset 1).

A second resource offset from a low frequency boundary of the target transmission channel by a second offset amount; here, the starting position of the other channel may be located at a position shifted from the low frequency boundary of the target transmission channel by the second offset amount, or the ending position of the other channel may be located at a position shifted from the low frequency boundary of the target transmission channel by the second offset amount, or the center frequency point of the other channel may be located at a position shifted from the low frequency boundary of the target transmission channel by the second offset amount. It should be noted that the values of the second offsets corresponding to the above three scenarios may be the same or different. As shown in fig. 5, the selected RO is located near the center frequency of the target transmission channel, and the start position of the other channel 2 is located at a position shifted from the low frequency boundary of the target transmission channel by a second shift amount (offset 2).

A fourth resource offset from a high frequency boundary of the RO by a third offset amount; here, the start position of the other channel may be located at a position shifted from the RO high frequency boundary by a third offset amount, or the end position of the other channel may be located at a position shifted from the RO high frequency boundary by the third offset amount, or the center frequency point of the other channel may be located at a position shifted from the RO high frequency boundary by the third offset amount. It should be noted that the values of the third offsets corresponding to the above three scenarios may be the same or different. The fourth resource may be located at a frequency domain position offset from the high frequency boundary of the selected RO by a third offset amount, 3, and by two third offset amounts, 3 x 2 … …. As shown in fig. 5, the selected RO is located near the center frequency of the target transmission channel, and the start position of the other channel 1 is located at a position shifted from the RO high frequency boundary by a third shift amount (offset 3).

A fifth resource offset from a low frequency boundary of the RO by a fourth offset amount; here, the start position of the other channel may be located at a position shifted from the RO low frequency boundary by a fourth shift amount, or the end position of the other channel may be located at a position shifted from the RO low frequency boundary by the fourth shift amount, or the center frequency point of the other channel may be located at a position shifted from the RO low frequency boundary by the fourth shift amount. It should be noted that the values of the fourth offsets corresponding to the above three scenarios may be the same or different. The fourth resource may be located at a frequency domain position offset from the low frequency boundary of the selected RO by a fourth offset amount, 4, by two fourth offset amounts, 4 x 2 … …. As shown in fig. 5, the selected RO is located near the center frequency of the target transmission channel, and the end position of the other channel 2 is located at a position shifted from the low frequency boundary of the RO by a fourth shift amount (offset 4).

Sixth resources uniformly distributed in the target transmission channel at a preset frequency domain interval from the RO; here, it is said that the alternative ROs are uniformly distributed in the target transport channel with other channels. For example, the preset frequency domain interval is the target transmission channel bandwidth/M, where M is a positive integer. As shown in fig. 6, the selected RO is uniformly distributed with 3 other channels within the target transport channel.

A seventh resource which deviates from the high frequency domain boundary of the activated uplink bandwidth part where the RO is located by a fifth deviation amount; here, the start position of the other channel may be located at a position shifted by a fifth offset from the high-frequency boundary of the activated upstream bandwidth portion where the RO is located, or the end position of the other channel may be located at a position shifted by a fifth offset from the high-frequency boundary of the activated upstream bandwidth portion where the RO is located, or the center frequency point of the other channel may be located at a position shifted by a fifth offset from the high-frequency boundary of the activated upstream bandwidth portion where the RO is located. It should be noted that the values of the fifth offsets corresponding to the above three scenarios may be the same or different. Wherein the activated upstream bandwidth portion is at least one of an activated upstream bandwidth portion, a first activated upstream bandwidth portion, and an initially activated upstream bandwidth portion.

And the eighth resource is offset from the low-frequency boundary of the activated uplink bandwidth part where the RO is located by a sixth offset, where the start position of the other channel may be located at a position offset from the low-frequency boundary of the activated uplink bandwidth part where the RO is located by the sixth offset, or the end position of the other channel may be located at a position offset from the low-frequency boundary of the activated uplink bandwidth part where the RO is located by the sixth offset, or the center frequency point of the other channel is located at a position offset from the low-frequency boundary of the activated uplink bandwidth part where the RO is located by the sixth offset. It should be noted that the values of the sixth offset corresponding to the above three scenarios may be the same or different.

The specific values of the first offset, the second offset, the third offset, the fourth offset, the fifth offset and the sixth offset may be the same or different. In addition, the embodiment of the present invention does not specifically limit the number of other channels, and the positions and the numbers of other channels may be predefined or configured by the network device. The number and location of the selected ROs may be predefined or network device configured.

The location relationship between the target transmission resource and the target transmission channel is described above, and the specific form of the padding information will be further described in the following embodiment.

Wherein, at least one filling information can be the same or different. The padding information may include, but is not limited to, at least one of:

a copy of message one; and the initial sequence and the cyclic shift of the preamble corresponding to the copy of the message one and the message one are the same, namely, the terminal repeatedly sends the message one through the target transmission resource. As shown in fig. 3 to 6, the RO transmits the same message one as the other channels. Alternatively, the target transport channel includes 4 ROs and the terminal transmits the same message one through all of the 4 ROs, as shown in fig. 7, and the terminal transmits the same message one through RO1, RO2, RO3, and RO 4.

The first padding information comprises at least one first sequence, wherein the preamble initial sequence corresponding to the first sequence is the same as the preamble initial sequence corresponding to the message one, and the cyclic shift corresponding to the first sequence is different from the cyclic shift corresponding to the message one. Here, it is said that the first sequence and the message correspond to the same preamble initial sequence, but the cyclic shift for the preamble initial sequence is different. The preamble initial sequence identity refers to that corresponding sequences before cyclic shift are identical, including but not limited to that root sequences of the preamble sequences are identical. For example, the first sequence and the first message both correspond to the preamble initial sequence 1, the first sequence is specifically a sequence determined after the preamble initial sequence 1 is cyclically shifted by a first number of bits, and the first message is a sequence determined after the preamble initial sequence 1 is cyclically shifted by a second number of bits. When the first padding information has a plurality of first sequences, the cyclic shifts of the plurality of first sequences may be the same or may be partially or entirely different. For example, the first padding information includes P first sequences, where the P first sequences respectively correspond to M cyclic shifts, and M is smaller than or equal to P. Further, the first sequence is: preamble sequences other than the first message are in a preamble sequence set, wherein the preamble sequence set includes the first message candidate preamble sequence and other preamble sequences. For example, the system maintains a set of preamble sequences that includes 64 preamble sequences, wherein 40 preamble sequences are used for message one, and then the 40 preamble sequences are candidate preamble sequences for message one, and the remaining 24 preamble sequences are used for other purposes, which are referred to as other preamble sequences. Here, assuming that the message one is one of 40 messages-candidate preamble sequences, the first sequence may be one of the remaining 39 messages-candidate preamble sequences and 24 other preamble sequences. As shown in fig. 3 to 6, the RO transmits the message one, and the first sequence is transmitted in the other channels. Alternatively, the target transport channel includes 4 ROs, and as shown in fig. 8, the terminal transmits messages, i.e., candidate preamble sequences seq1, seq2, seq3, and seq4, through RO1, RO2, RO3, and RO4, respectively. Alternatively, as shown in fig. 9, the terminal transmits messages, a candidate preamble sequence seq1 and seq2, through RO1 and RO4 among RO1, RO2, RO3 and RO4, respectively. Alternatively, as shown in fig. 10, the terminal transmits a message-candidate preamble sequence seq1 and other preamble sequences seq4 for occupancy through RO1 and RO4 of RO1, RO2, RO3 and RO4, respectively.

Second padding information, the second padding information comprising at least one second sequence, wherein the preamble sequence corresponding to the second sequence is different from the preamble sequence corresponding to the message one, wherein it is said that the second sequence and the message one correspond to different initial preamble sequences, for example the second sequence corresponds to preamble initial sequence 1 and the message one corresponds to preamble initial sequence 2. Since the second sequence is different from the initial preamble sequence corresponding to the first message, the finally constructed sequences are different regardless of whether the cyclic shifts of the second sequence and the initial preamble sequence are the same. When the second padding information has a plurality of second sequences, preamble sequences corresponding to the plurality of second sequences may be the same, or may be partially or completely different. For example, the second padding information has P second sequences, where the P second sequences respectively correspond to M preamble sequences, and M is smaller than or equal to P. Similar to the first sequence, the second sequence is: preamble sequences other than the first message are in a preamble sequence set, wherein the preamble sequence set includes the first message candidate preamble sequence and other preamble sequences. For example, the system maintains a set of preamble sequences that includes 64 preamble sequences, wherein 40 preamble sequences are used for message one, and then the 40 preamble sequences are candidate preamble sequences for message one, and the remaining 24 preamble sequences are used for other purposes, which are referred to as other preamble sequences. Here, assuming that the message one is one of 40 messages-candidate preamble sequences, the second sequence may be one of the remaining 39 messages-candidate preamble sequences and 24 other preamble sequences. The transmission form of the second padding information is similar to that of the first padding information, and the transmission method shown in fig. 3 to 6 and 8 to 10 may also be adopted.

And a target pseudo-random sequence (which may also be referred to as a non-msg 1 message). The target pseudo-random sequence referred to herein may include, but is not limited to: a given set of sequences or sequences subject to a certain distribution, etc., such as at least one of ZC sequences, CAZAC sequences, Gold sequences and M sequences other than the preamble sequence set. The target transmission channel has 4 ROs in the same time and frequency domain, and the terminal selects 2 ROs from the ROs to send a message one and a target pseudo-random sequence, and the two ROs meet the OCB requirement. For example, as shown in fig. 11, the terminal sends a message-corresponding preamble sequence seq1 on RO1 and a target pseudo-random sequence, e.g., ZC sequence zcseq1, on RO 4.

It is noted that, in addition to the form of the padding information described above, the padding information may also be placeholder bits for placeholders only. The combination of the preamble initial sequence and the cyclic shift corresponding to the first sequence in the first padding information and the second sequence in the second padding information is predefined or configured by the network device. The manner in which the terminal sends the first message may be predefined or configured by the network device.

In this embodiment of the present invention, the terminal sends the message one and the padding information through the target transmission resource in the target transmission channel, where the role of the padding information may include but is not limited to: place holders, join messages-one for random access procedures and other uses, etc. When the padding information is used for occupying space, the behavior of the network device after receiving the message one and the padding information on the target transmission resource may be: only detecting the message once to complete the random access process without detecting the padding information; i.e., the network device may ignore the padding information. When the padding information is used for combining the message one for a random access process or other practical purposes, after the network device receives the message one and the padding information on the target transmission resource, both the message one and the padding information need to be detected to complete a corresponding service process. Taking fig. 9 as an example, the terminal sends seq1 on RO1 and seq2 on RO 4. The seq1 and seq2 are jointly used for sending the message one of the random access procedure, and after receiving the seq1 and seq2, the network device jointly determines the message two of the random access procedure by using the seq1 and seq2, so as to implement the subsequent procedure of the random access. The preamble sequence combination jointly used for the random access procedure may be predefined or configured by the network device. Optionally, the combination of the message one and the padding message may be used to indicate related information of other transmissions, where the related information may be at least one of Modulation and Coding Scheme (MCS), Transport Block (TBS), demodulation Reference Signal (De-Modulation Reference Signal, DMRS) symbol number, DMRS time domain position, DMRS density, DMRS sequence, Transmission Power Control Command (TPC), SCS, DMRS sequence initialization, Sounding Reference Signal (SRS) symbol number, SRS time domain position, comb (comb) number, time-frequency resource allocation, Cyclic Prefix (CP) type, and the like. Other transmissions may be in addition to message one and padding information, such as at least one of PUSCH, PUCCH, DMRS, SRS. In one implementation manner, in the RACH procedure, the base station configures a group of parameter configurations, and the terminal indicates the parameter configuration selected by the terminal through a combination of the first message and the padding message. For example, seq1 and seq2 are jointly used for transmission of the random access procedure message one and indicate MCS of Physical Uplink Shared Channel (PUSCH), and after receiving seq1 and seq2, the network device jointly determines MCS of PUSCH by using seq1 and seq2 and decodes PUSCH based on the MCS. The preamble sequence combination jointly used for the random access procedure may be predefined or configured by the network device.

In the embodiment of the invention, the target transmission channel can be positioned in the authorized frequency band or the unauthorized frequency band. Accordingly, step 21 may be preceded by: determining a target transmission channel in an authorized frequency band; or, the transmission resource of the unlicensed frequency band is intercepted to determine the target transmission channel.

Wherein, the ROs in the target transmission channel may respectively correspond to at least one piece of association information, and the association signal includes: a Synchronization Signal Block (SSB) and/or a Channel State indication Reference Signal (CSI-RS). For the transmission scene of the unauthorized frequency band, the step of intercepting the transmission resource of the unauthorized frequency band comprises the following steps: intercepting at least one first RO of a first channel in an unlicensed frequency band within a message time window, wherein the at least one first RO corresponds to a first associated signal, and the first associated signal comprises at least one of a first Synchronization Signal Block (SSB) and a first channel state indication reference signal (CSI-RS); if the first RO is not sensed to be idle in the message time window or the first RO is sensed to be occupied for N consecutive times in the message time window, indicating failure indication information to an upper layer (of the terminal), wherein the failure indication information is used for indicating: a random access procedure failure, a message transmission failure, or a random access procedure (random access protocol) problem. Wherein N is a positive integer. That is, if the terminal fails to preempt a channel containing an RO at the point in time that the RO is present and the message time window has not expired, the terminal may continue LBT for the message time window in an attempt to preempt a channel of the first RO that is next available within the message time window. If the message time window has ended and the terminal fails to preempt the channel containing the available first RO to send msg1, or the number of failures for the message time window to end but preempt the channel containing the available first RO reaches a certain threshold (e.g., N times), the terminal indicates failure indication information to the upper layer. The starting point of the selected RO is the starting point of a message time window, that is, the message time window is opened from the starting point of the selected RO. The opening of the next message time window is not allowed to open a new message time window again after the end of the current message time window, that is, before the end of the current message time window. Wherein, a message time window can be ended in advance when a certain condition is satisfied (e.g. consecutive N times, it is sensed that the RO is occupied). The starting point of the selected RO may be a starting time domain symbol of the RO (e.g., an OFDM symbol) or a position of a time domain symbol 0 of a slot (slot) where the RO is located.

Further, the step of indicating the failure of the random access procedure to the upper layer further comprises: and listening at least one second RO of the first channel in the unlicensed frequency band within a next message time window, wherein the at least one second RO corresponds to a second associated signal, and the second associated signal comprises: at least one of a second SSB and a second CSI-RS, the second association signal being different from the first association signal. Wherein the second correlation signal being different from the first correlation signal means: the second SSB is different from the first SSB, the second CSI-RS is different from the first CSI-RS, the second associated signal is a CSI-RS and the first associated signal is an SSB, the second associated signal is an SSB and the first associated signal is a CSI-RS. Taking the first association signal and the second association signal as SSBs for example, after a channel fails to preempt a channel for an RO corresponding to a certain SSB, the terminal may replace the SSB used for selecting an available RO, and select an RO based on the SSB, and start a new random access process. Or, in the next message time window, intercepting the target RO of the second channel in the unauthorized frequency band; wherein the frequency domain range of the second channel is at least partially different from the frequency domain range of the first channel, and the target RO comprises: the first RO, the second RO or other ROs, the other ROs being ROs other than the first RO and the second RO, specifically, the associated signals corresponding to the other ROs being different from the first associated signal and the second associated signal; for example, after a channel fails to be preempted by a certain channel, the terminal may attempt to preempt other channels and select ROs on other channels, and start a new random access procedure.

Or, for N consecutive times of listening that the first RO is occupied within a time window of the message, the step of indicating to the upper layer that the random access procedure is failed further includes: if the message time window is not finished, at least one second RO of the first channel in the unauthorized frequency band is monitored continuously in the message time window; wherein the at least one second RO corresponds to a second associated signal comprising at least one of a second SSB and a second CSI-RS, the second associated signal being different from the first associated signal; taking the first association signal and the second association signal as SSBs for example, after a channel fails to preempt a channel for an RO corresponding to a certain SSB, the terminal may replace the SSB used for selecting an available RO, and select an RO based on the SSB, and start a new random access process. Or if the message time window is not finished, continuing to listen to a target RO of a second channel in the unlicensed frequency band within the message time window, where a frequency domain range of the second channel is at least partially different from a frequency domain range of the first channel, and the target RO includes: the first RO, the second RO or other ROs, the other ROs being ROs other than the first RO and the second RO, specifically, the associated signals corresponding to the other ROs being different from the first associated signal and the second associated signal; for example, after a channel fails to be preempted by a certain channel, the terminal may attempt to preempt other channels and select ROs on other channels, and start a new random access procedure.

Further, the step of listening for at least one second RO for the first channel in the unlicensed frequency band comprises: and if the measurement result of the second associated signal in the first channel meets the preset condition, intercepting at least one second RO of the first channel in the unauthorized frequency band. Wherein, the measurement result satisfying the preset condition here may refer to: the measurement result indicates that the received power and/or quality of the second associated signal in the first channel is better, when the terminal listens to at least one second RO of the first channel. For example, at least one of a Reference Signal Received Power (RSRP), a Reference Signal Received Quality (RSRQ), and a Reference Signal Strength Indicator (RSSI) of the associated Signal respectively satisfies its corresponding threshold. Optionally, the measurement result of the second associated signal in the first channel does not satisfy the preset condition, and the listening may be suspended or the listening in other channels. Optionally, when the measurement results of the plurality of second correlation signals in the first channel satisfy the preset condition, the terminal may select an optimal second correlation signal and listen to the corresponding second RO, for example, RSRP of the SSB2 and the SSB3 in the second channel is greater than a threshold, and the quality of the SSB2 is optimal, then the terminal listens to the RO corresponding to the SSB 2.

Further, the step of listening for the target RO of the second channel in the unlicensed frequency band includes: and if the measurement result of the second channel meets the preset condition, intercepting the target RO of the second channel in the unauthorized frequency band. Wherein, the measurement result satisfying the preset condition here may refer to: when the measurement result indicates that the channel quality of the target RO in the second channel is better (for example, at least one of RSRP, RSRQ, and RSSI of the associated signal of the target RO in the second channel respectively satisfies its corresponding threshold, and/or the target RO in the second channel remains idle for a certain time window), the terminal listens to the target RO in the second channel. Optionally, when the measurement result of the second channel does not satisfy the preset condition, the listening may be suspended or switched to listening in other channels. Optionally, when the measurement results of the plurality of target RO associated signals in the second channel satisfy a preset condition (for example, RSRP of SSB1 and SSB2 in the second channel is greater than a threshold), the terminal may select an optimal target RO associated signal from the plurality of target RO associated signals, and listen to the corresponding target RO.

Wherein the threshold and/or the certain time window may be predefined by a protocol or configured by a network device.

Wherein the step of listening for at least one first RO of a first channel in the unlicensed frequency band within a message time window includes, but is not limited to: and intercepting at least one first RO of a first channel in the unlicensed frequency band according to a time domain sequence within a message time window, namely, preferably intercepting whether the nearest RO is idle within the message time window. Or, sequentially listening to the selected at least one first RO in the first channel in the unlicensed frequency band within a message time window. For example, the first RO includes RO1 and RO3 corresponding to SSB1, and the selected first RO is RO1, the terminal listens only to whether RO1 is idle for a message time window, and indicates to an upper layer of the terminal that the random access procedure has failed when it senses that all ROs 1 in the first channel are busy or that RO1 is continuously busy N times. Or randomly listening to at least one first RO of a first channel in the unlicensed frequency band within a message time window.

The channel listening mode in the unlicensed frequency band is briefly introduced above, and the following embodiment will further describe the channel listening mode in combination with different application scenarios.

In a scene one, at least one first RO of a first channel in an unauthorized frequency band is intercepted within a message time window; if the first RO is not sensed to be idle in the message time window, indicating failure indication information to an upper layer of the terminal; intercepting at least one second RO of a first channel in the unlicensed frequency band within a next message time window; at least one second RO corresponds to a second SSB. Wherein at least one first RO corresponds to a first SSB and the second SSB is different from the first SSB.

Assuming that a PRACH resource period is 10ms, a message time window (msg1 window) is 20ms in length, and there are 4 ROs (RO1, RO2, RO3, and RO4) in one PRACH resource period, where RO1 and RO3 are associated with SSB1, and RO2 and RO4 are associated with SSB2, respectively. The terminal selects the SSB1 and selects RACH resources based on the SSB 1. For example, the terminal is served by a downlink beam used when transmitting the SSB1, and thus the terminal can select an RO based on the SSB 1. As shown in fig. 12, assuming that the next available RO is RO1, the user opens LBT to try to preempt the channel containing RO1 and opens msg1window from the beginning of RO1, if the current RO1 is sensed to be busy, continue sensing the RO3 closest to the current RO1, if the RO3 is also busy, continue sensing the RO1 closest to the RO3, and so on until no free RO is sensed within a message time window. Alternatively, msg1window is opened from the beginning of RO1, if the current RO1 is sensed to be busy, the next RO1 is sensed, if the RO1 is also busy, the next RO1 is sensed, and so on until no free RO1 is sensed within a message time window. If there is no successful LBT and msg1 sent before the end of the message time window, the terminal indicates failure indication information to the upper layer.

Further, after the step of indicating the failure indication information to the upper layer of the terminal, the terminal may further switch the SSB for selecting the RO, e.g., when the terminal selects the RO based on the SSB2 and starts a new random access procedure within a next message time window when the measurement result RSRP of the SSB2 is not less than the corresponding threshold, assuming that the next available RO is RO2, the terminal starts msg1window from the start point of RO2, and if the LBT succeeds and camps on the channel including RO2 at RO2, the terminal transmits msg1 on RO 2.

In a second scenario, at least one first RO of a first channel in an unauthorized frequency band is intercepted within a message time window; if the first RO is monitored to be occupied for N times continuously in the message time window, indicating failure indication information to an upper layer of the terminal; intercepting at least one second RO of a first channel in the unlicensed frequency band within a next message time window; at least one second RO corresponds to a second SSB. Wherein at least one first RO corresponds to a first SSB and the second SSB is different from the first SSB.

Assuming that a PRACH resource period is 10ms, a message time window (msg1 window) is 20ms in length, a maximum number of consecutive LBT failures within the message time window is 8, and there are 4 ROs (RO1, RO2, RO3, and RO4) within one PRACH resource period, where RO1 and RO3 are associated with SSB1, and RO2 and RO4 are associated with SSB2, respectively. The terminal selects the SSB1 and selects RACH resources based on the SSB 1. For example, the terminal is served by a downlink beam used when transmitting the SSB1, and thus the terminal can select an RO based on the SSB 1. As shown in fig. 13, assuming that the next available RO is RO1, the user opens LBT to try to seize the channel containing RO1 and opens msg1window from the beginning of RO1, if the current RO1 is busy, continue to listen to the nearest RO3 to the RO1, if the RO3 is also busy, continue to listen to the nearest RO1 to the RO3, and so on until the number of times that the RO is continuously listened to within a message time window reaches 8. Alternatively, msg1window is opened from the beginning of RO1, if the current RO1 is sensed to be busy, the next RO1 is sensed, if the RO1 is also busy, the next RO1 is sensed, and so on until the number of times that the RO1 is sensed to be occupied within a time window of the message reaches 8. If there is no successful LBT and msg1 sent before the end of the message time window, the terminal indicates failure indication information to the upper layer.

Further, after the step of indicating the failure indication information to the upper layer of the terminal, the terminal may further switch the SSB for selecting the RO, for example, the terminal selects the RO based on SSB2 in the next message time window and starts a new random access procedure, assuming that the next available RO is RO4, the terminal starts opening msg1window from the start of RO4, if LBT fails at the first RO4, continues to listen to the RO2 nearest to the first RO4, and if listening succeeds and seizes the channel including RO2, the terminal transmits msg1 on RO 2.

In a third scenario, at least one first RO of a first channel in an unauthorized frequency band is intercepted within a message time window; if the first RO is not sensed to be idle in the message time window, or the first RO is sensed to be occupied for N times continuously in the message time window, indicating failure indication information to an upper layer of the terminal; and in the next message time window, the first RO of the second channel in the unlicensed frequency band is intercepted. Wherein the at least one first RO corresponds to a first SSB; the frequency domain range of the second channel is at least partially different from the frequency domain range of the first channel.

Assuming that the PRACH resource period in the first channel (channel 1) is 10ms, the message time window (msg1 window) is 20ms in length, the maximum number of consecutive LBT failures in the message time window is 8, and there are 4 ROs (RO1, RO2, RO3, and RO4) in one PRACH resource period, where RO1 and RO3 are associated with SSB1, respectively, and RO2 and RO4 are associated with SSB2, respectively. The PRACH resource period in the second channel (channel 2) is 10ms, the length of a message time window (msg1 window) is 20ms, the maximum number of consecutive LBT failures in the message time window is 8, and there are 4 ROs (RO1, RO2, RO3, and RO4) in one PRACH resource period, where RO1 and RO3 are associated with SSB1, respectively, and RO2 and RO4 are associated with SSB3, respectively.

The terminal selects the SSB1 and selects RACH resources based on the SSB 1. For example, the terminal is served by a downlink beam used when transmitting the SSB1, and thus the terminal can select an RO based on the SSB 1. Assuming that the next available RO is RO1, the user opens LBT to try to seize the channel containing RO1 and starts opening msg1window from the beginning of RO1, if the current RO1 is busy, continues listening to the RO3 closest to the RO1, if the RO3 is also busy, continues listening to the RO1 closest to the RO3, and so on until the number of times that the message has not listened to a free RO within a time window (as shown in fig. 13) or the RO is continuously listened to as occupied reaches 8 (not shown in the figure). Alternatively, msg1window is opened from the beginning of RO1, if the current RO1 is sensed to be busy, the next RO1 is sensed, if the RO1 is also busy, the next RO1 is sensed, and so on until no idle RO1 is sensed within a time window of the message (as shown in fig. 13) or the number of times that RO1 is sensed to be occupied reaches 8 (not shown in the figure). If there is no successful LBT and msg1 sent before the end of the message time window, the terminal indicates failure indication information to the upper layer.

Further, after the step of indicating the failure indication information to the upper layer, the terminal may further select another channel 2 containing RACH resources in the LBT frequency domain, and initiate a new random access procedure on the channel 2. The terminal is served by the downlink beam used when transmitting the SSB1, and thus the terminal selects an RO on channel 2 based on the SSB 1. Assuming that the next available RO is RO1 on channel 2, the terminal opens LBT to attempt to preempt the channel containing RO1 and starts opening msg1window from the start of RO1, LBT succeeds and preempts to channel 2 containing RO1, and the terminal sends msg1 from RO1 on channel 2.

Before the step of listening to the transmission resource of the unlicensed frequency band to determine the target transmission channel, the method further includes: acquiring Physical Random Access Channel (PRACH) configuration information; wherein the PRACH configuration information is used to indicate at least one of an RO identity, an RO frequency division multiplexing capability (PRACH-FDM), and an RO frequency domain interval (ROfreqoffset 1). The RO identities are used to distinguish different ROs, and the RO frequency division multiplexing capability refers to the maximum number of ROs that can be included in one PRACH resource, for example, the maximum number of FDM ROs in the PRACH resource is 16. The RO frequency domain interval is the interval of two ROs for the same time FDM. The PRACH configuration information described in this embodiment is predefined (e.g., agreed by a protocol) or configured by a network device.

Before the step of listening to the transmission resource of the unlicensed frequency band to determine the target transmission channel, the method further includes: acquiring message time window configuration information; wherein, the message time window configuration information is used to indicate at least one of a window start point, a window length (duration), a window period, a maximum listening failure number in the window, and a window time domain offset. The message time window configuration information mentioned in this embodiment is predefined (e.g., protocol convention), or configured by the network device.

In the information transmission method of the embodiment of the invention, the terminal jointly sends the message I and the filling information on the target transmission resource, so that the bandwidth utilization rate is further improved on the basis of ensuring the normal operation of the random access process on the authorized frequency band, the availability of the idle transmission channel on the unauthorized frequency band can be ensured, and the normal operation of the random access process can be ensured.

The above embodiments describe information transmission methods in different scenarios, and a terminal corresponding to the method will be further described with reference to the accompanying drawings.

As shown in fig. 15, a terminal 1500 according to an embodiment of the present invention can implement sending a message one of a random access procedure and padding information to a network device on a target transmission resource of a target transmission channel in the foregoing embodiment; the message one and the padding information are details of a frequency division multiplexing method, and achieve the same effect, the terminal 1500 specifically includes the following functional modules:

a sending module 1510, configured to send a message one of a random access procedure and padding information to a network device on a target transmission resource of a target transmission channel; wherein the message one and the padding information are frequency division multiplexed.

Wherein, when the target transmission channel comprises at least one physical random access channel transmission opportunity (RO), the target transmission resource comprises at least one RO and at least one other channel, the other channel is located in the frequency domain part of the target transmission channel except all the ROs,

alternatively, the first and second electrodes may be,

when the at least two ROs are included in the target transmission channel, the target transmission resource includes a plurality of the at least two ROs.

Wherein the other channels comprise at least one of the following resources:

a first resource that is symmetric to the RO with respect to a frequency center frequency domain of the target transmission channel;

a second resource offset from a high frequency boundary of the target transmission channel by the first offset amount;

a second resource offset from a low frequency boundary of the target transmission channel by a second offset amount;

a fourth resource offset from a high frequency boundary of the RO by a third offset amount;

a fifth resource offset from a low frequency boundary of the RO by a fourth offset amount;

sixth resources uniformly distributed in the target transmission channel at a preset frequency domain interval from the RO;

a seventh resource which deviates from the high frequency domain boundary of the activated uplink bandwidth part where the RO is located by a fifth deviation amount;

and the eighth resource is offset from the low-frequency domain boundary of the activated uplink bandwidth part where the RO is located by the sixth offset.

Wherein the padding information comprises at least one of:

a copy of message one;

the first padding information comprises at least one first sequence, wherein the preamble initial sequence corresponding to the first sequence is the same as the preamble initial sequence corresponding to the first message, and the cyclic shift corresponding to the first sequence is different from the cyclic shift corresponding to the first message;

second padding information, wherein the second padding information comprises at least one second sequence, and a preamble initial sequence corresponding to the second sequence is different from a preamble initial sequence corresponding to the first message; and

a target pseudorandom sequence, the target pseudorandom sequence comprising: at least one of a ZC sequence, a CAZAC sequence, a Gold sequence, and an M sequence.

Wherein the first sequence and/or the second sequence is: preamble sequences other than the first message are in a preamble sequence set, wherein the preamble sequence set includes the first message candidate preamble sequence and other preamble sequences.

Wherein, terminal 1500 further comprises:

the first determining module is used for determining a target transmission channel in the authorized frequency band;

alternatively, the first and second electrodes may be,

and the second determining module is used for intercepting the transmission resource of the unauthorized frequency band and determining a target transmission channel.

Wherein the second determining module comprises:

a first listening sub-module, configured to listen to at least one first RO of a first channel in an unlicensed frequency band within a message time window, where the at least one first RO corresponds to a first association signal, and the first association signal includes: at least one of a first synchronization signal block, SSB, and a first channel state indication reference signal, CSI-RS;

a first processing sub-module, configured to indicate failure indication information to an upper layer if the first RO is not sensed to be idle within the message time window, or if the first RO is sensed to be occupied N times within the message time window, where the failure indication information is used to indicate: a random access procedure failure, a message-send failure, or a random access procedure has a problem.

Wherein the second determining module further comprises:

a second listening sub-module, configured to listen to at least one second RO of the first channel in the unlicensed frequency band within a next message time window, where the at least one second RO corresponds to a second associated signal, and the second associated signal includes: at least one of a second SSB and a second CSI-RS, the second association signal being different from the first association signal;

alternatively, the first and second electrodes may be,

a third listening sub-module, configured to listen to a target RO of a second channel in the unlicensed frequency band within a next message time window, where a frequency domain range of the second channel is at least partially different from a frequency domain range of the first channel, and the target RO includes: the first RO, the second RO, or other ROs, the other ROs corresponding to associated signals different from the first associated signal and the second associated signal.

Wherein the second determining module further comprises: the fourth interception submodule is used for intercepting at least one second RO of the first channel in the unauthorized frequency band in the message time window if the message time window is not finished; wherein the at least one second RO corresponds to a second correlation signal comprising: at least one of a second SSB and a second CSI-RS, the second association signal being different from the first association signal;

alternatively, the first and second electrodes may be,

a fifth interception sub-module, configured to, if the message time window is not finished, continue to intercept, within the message time window, a target RO of a second channel in the unlicensed frequency band, where a frequency domain range of the second channel is at least partially different from a frequency domain range of the first channel, and the target RO includes: the first RO, the second RO, or other ROs, the other ROs corresponding to associated signals different from the first associated signal and the second associated signal.

Specifically, the second determining module is specifically configured to:

and if the measurement result of the second associated signal in the first channel meets the preset condition, intercepting at least one second RO of the first channel in the unauthorized frequency band.

The second determining module is further specifically configured to:

and if the measurement result of the second channel meets the preset condition, intercepting the target RO of the second channel in the unauthorized frequency band.

Wherein, terminal 1500 further comprises:

the system comprises a first acquisition module, a second acquisition module and a first transmission module, wherein the first acquisition module is used for acquiring Physical Random Access Channel (PRACH) configuration information; wherein the PRACH configuration information is used for indicating at least one of an RO identification, an RO frequency division multiplexing capability and an RO frequency domain interval.

Wherein, terminal 1500 further comprises:

the second acquisition module is used for acquiring message time window configuration information; the message time window configuration information is used for indicating at least one of a window starting point, a window length, a window period, the maximum interception failure times in the window and the window time domain offset.

And the bandwidth occupied by the target transmission resource is greater than or equal to the preset percentage of the nominal channel bandwidth of the target transmission channel.

It is worth pointing out that, the terminal in the embodiment of the present invention jointly sends the message one and the padding information on the target transmission resource, so that on the basis of ensuring the normal operation of the random access process on the authorized frequency band, the bandwidth utilization rate is further improved, and the availability of the idle transmission channel on the unauthorized frequency band can be ensured, thereby ensuring the normal operation of the random access process.

To better achieve the above object, further, fig. 16 is a schematic diagram of a hardware structure of a terminal implementing various embodiments of the present invention, where the terminal 160 includes, but is not limited to: radio frequency unit 161, network module 162, audio output unit 163, input unit 164, sensor 165, display unit 166, user input unit 167, interface unit 168, memory 169, processor 1610, power supply 1611, and the like. Those skilled in the art will appreciate that the terminal configuration shown in fig. 16 is not intended to be limiting, and that the terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

The radio frequency unit 161 is configured to receive and transmit data under the control of the processor 1610, and specifically, is configured to send a message one of a random access procedure and padding information to a network device on a target transmission resource of a target transmission channel; wherein the message one and the padding information are frequency division multiplexed;

the terminal of the embodiment of the invention jointly sends the message I and the filling information on the target transmission resource, thereby further improving the bandwidth utilization rate on the basis of ensuring the normal operation of the random access process on the authorized frequency band, ensuring the availability of the idle transmission channel on the unauthorized frequency band and ensuring the normal operation of the random access process.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 161 may be configured to receive and transmit signals during a message transmission or a call, and specifically, receive downlink data from a base station and then process the received downlink data to the processor 1610; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 161 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 161 may also communicate with a network and other devices through a wireless communication system.

The terminal provides wireless broadband internet access to the user through the network module 162, such as helping the user send and receive e-mails, browse web pages, and access streaming media.

The audio output unit 163 may convert audio data received by the radio frequency unit 161 or the network module 162 or stored in the memory 169 into an audio signal and output as sound. Also, the audio output unit 163 may also provide audio output related to a specific function performed by the terminal 160 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 163 includes a speaker, a buzzer, a receiver, and the like.

The input unit 164 is used to receive an audio or video signal. The input Unit 164 may include a Graphics Processing Unit (GPU) 1641 and a microphone 1642, and the Graphics processor 1641 processes image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capture mode or an image capture mode. The processed image frames may be displayed on the display unit 166. The image frames processed by the graphic processor 1641 may be stored in the memory 169 (or other storage medium) or transmitted via the radio frequency unit 161 or the network module 162. The microphone 1642 may receive sound and may be capable of processing such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 161 in case of the phone call mode.

The terminal 160 also includes at least one sensor 165, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that adjusts the brightness of the display panel 1661 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 1661 and/or the backlight when the terminal 160 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensor 165 may further include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, etc., which will not be described in detail herein.

The display unit 166 is used to display information input by the user or information provided to the user. The Display unit 166 may include a Display panel 1661, and the Display panel 1661 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 167 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal. Specifically, the user input unit 167 includes a touch panel 1671 and other input devices 1672. Touch panel 1671, also referred to as a touch screen, may collect touch operations by a user on or near touch panel 1671 (e.g., operations by a user on or near touch panel 1671 using a finger, a stylus, or any other suitable object or attachment). The touch panel 1671 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, and sends the touch point coordinates to the processor 1610 to receive and execute commands sent by the processor 1610. In addition, the touch panel 1671 may be implemented by using various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to touch panel 1671, user input unit 167 can include other input devices 1672. In particular, other input devices 1672 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

Further, a touch panel 1671 can be overlaid on the display panel 1661, and when the touch panel 1671 detects a touch operation on or near the touch panel 1671, the touch operation can be transmitted to the processor 1610 to determine the type of the touch event, and then the processor 1610 can provide a corresponding visual output on the display panel 1661 according to the type of the touch event. Although in fig. 16, the touch panel 1671 and the display panel 1661 are two independent components to implement the input and output functions of the terminal, in some embodiments, the touch panel 1671 and the display panel 1661 may be integrated to implement the input and output functions of the terminal, and is not limited herein.

The interface unit 168 is an interface for connecting an external device to the terminal 160. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 168 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal 160 or may be used to transmit data between the terminal 160 and an external device.

The memory 169 may be used to store software programs as well as various data. The memory 169 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. In addition, the memory 169 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.

The processor 1610 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, and performs various functions of the terminal and processes data by operating or executing software programs and/or modules stored in the memory 169 and calling data stored in the memory 169, thereby performing overall monitoring of the terminal. Processor 1610 may include one or more processing units; preferably, processor 1610 may integrate an application processor, which primarily handles operating systems, user interfaces, application programs, etc., and a modem processor, which primarily handles wireless communications. It is to be appreciated that the modem processor described above may not be integrated into processor 1610.

The terminal 160 may further include a power supply 1611 (e.g., a battery) for powering the various components, and preferably, the power supply 1611 may be logically connected to the processor 1610 via a power management system that may be configured to manage charging, discharging, and power consumption.

In addition, the terminal 160 includes some functional modules that are not shown, and are not described in detail herein.

Preferably, an embodiment of the present invention further provides a terminal, including a processor 1610, a memory 169, and a computer program stored in the memory 169 and capable of running on the processor 1610, where the computer program is executed by the processor 1610 to implement each process of the above-mentioned information transmission method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again. A terminal may be a wireless terminal or a wired terminal, and a wireless terminal may be a device providing voice and/or other service data connectivity to a user, a handheld device having a wireless connection function, or other processing devices connected to a wireless modem. Wireless terminals, which may be mobile terminals such as mobile telephones (or "cellular" telephones) and computers having mobile terminals, such as portable, pocket, hand-held, computer-included, or vehicle-mounted mobile devices, may communicate with one or more core networks via a Radio Access Network (RAN), which may exchange language and/or data with the RAN. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), and the like. A wireless Terminal may also be referred to as a system, a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a Mobile Station (Mobile), a Remote Station (Remote Station), a Remote Terminal (Remote Terminal), an Access Terminal (Access Terminal), a User Terminal (User Terminal), a User Agent (User Agent), and a User Device or User Equipment (User Equipment), which are not limited herein.

The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the information transmission method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

The above embodiment describes the information transmission method of the present invention from the terminal side, and the following embodiment further describes the information transmission method of the network device side with reference to the drawings.

As shown in fig. 17, the information transmission method according to the embodiment of the present invention is applied to a network device, and includes the following steps:

step 171: receiving a message I and filling information of a random access process on a target transmission resource of a target transmission channel; wherein the message one and the padding information are frequency division multiplexed.

The target transmission channel may be located in a licensed frequency band or an unlicensed frequency band. In this embodiment of the present invention, the terminal sends the message one and the padding information through the target transmission resource in the target transmission channel, where the role of the padding information may include but is not limited to: place holders, join messages-one for random access procedures and other uses, etc. When the padding information is used for occupying space, after the network device receives the first message and the padding information on the target transmission resource, only the first message is detected to complete the random access process, and the padding information does not need to be detected, namely, the network device can ignore the padding information. That is, after step 171, the network device detects the message and ignores the padding information. When the padding information is used for combining the message one for a random access process or other practical purposes, after the network device receives the message one and the padding information on the target transmission resource, both the message one and the padding information need to be detected to complete a corresponding service process. The preamble sequence combination jointly used for the random access procedure may be predefined or configured by the network device.

Step 172: and feeding back a response message to the terminal according to the message I.

Wherein, the response message includes but is not limited to message two, and the network device feeds back the response message to the terminal to complete the random access procedure.

when the target transport channel includes at least one physical random access channel transmission opportunity RO, the target transport resource includes at least one RO and at least one other channel, and the other channel is located in a frequency domain portion of the target transport channel except for all ROs. Assuming that the target transmission channel includes 4 ROs, such as RO1, RO2, RO3, and RO4, the target transmission resource includes the selected RO1 and at least one other channel located in a frequency domain portion of the target transmission channel other than RO1, RO2, RO3, and RO 4. The selected RO may be predefined (e.g., agreed upon) or configured by the network device, and the other channels may be predefined or configured by the network device. And for the transmission scene of the unauthorized frequency band, the two channels with the farthest frequency domain positions in at least one other channel and at least one RO in the target transmission resource meet the OCB requirement.

Alternatively, when the at least two ROs are included in the target transmission channel, the target transmission resource includes a plurality of the at least two ROs. It is assumed that the target transmission channel includes 4 ROs, such as RO1, RO2, RO3, and RO4, and the target transmission resource includes RO1 and RO 4. Wherein, at least one RO exists in the same time frequency domain range of the target transmission channel, the terminal can send a message I on one RO and send filling information on other ROs. Wherein the selected RO (e.g., the RO transmitting the message one and/or the RO transmitting the padding information) may be predefined or network device configured.

The position relationship between the target transmission resource and the target transmission channel will be further described with reference to the drawings.

Wherein the other channels comprise at least one of the following resources:

a first resource that is symmetric to the RO with respect to a frequency center frequency domain of the target transmission channel; the frequency domain symmetry referred to herein may be: the start position of the other channel is frequency domain symmetric with the start position of the selected RO, the end position of the other channel is frequency domain symmetric with the end position of the selected RO, the start position of the other channel is frequency domain symmetric with the end position of the selected RO, the end position of the other channel is frequency domain symmetric with the start position of the selected RO, the start and end positions of the other channel are frequency domain symmetric with the start and end positions of the selected RO, and the like.

A second resource offset from a high frequency boundary of the target transmission channel by the first offset amount; here, the start position of the other channel may be located at a position shifted from the high-frequency boundary of the target transmission channel by the first offset amount, or the end position of the other channel may be located at a position shifted from the high-frequency boundary of the target transmission channel by the first offset amount, or the center frequency point of the other channel may be located at a position shifted from the high-frequency boundary of the target transmission channel by the first offset amount. It should be noted that the values of the first offsets corresponding to the above three scenarios may be the same or different.

A second resource offset from a low frequency boundary of the target transmission channel by a second offset amount; here, the starting position of the other channel may be located at a position shifted from the low frequency boundary of the target transmission channel by the second offset amount, or the ending position of the other channel may be located at a position shifted from the low frequency boundary of the target transmission channel by the second offset amount, or the center frequency point of the other channel may be located at a position shifted from the low frequency boundary of the target transmission channel by the second offset amount. It should be noted that the values of the second offsets corresponding to the above three scenarios may be the same or different.

A fourth resource offset from a high frequency boundary of the RO by a third offset amount; here, the start position of the other channel may be located at a position shifted from the RO high frequency boundary by a third offset amount, or the end position of the other channel may be located at a position shifted from the RO high frequency boundary by the third offset amount, or the center frequency point of the other channel may be located at a position shifted from the RO high frequency boundary by the third offset amount. It should be noted that the values of the third offsets corresponding to the above three scenarios may be the same or different.

A fifth resource offset from a low frequency boundary of the RO by a fourth offset amount; here, the start position of the other channel may be located at a position shifted from the RO low frequency boundary by a fourth shift amount, or the end position of the other channel may be located at a position shifted from the RO low frequency boundary by the fourth shift amount, or the center frequency point of the other channel may be located at a position shifted from the RO low frequency boundary by the fourth shift amount. It should be noted that the values of the fourth offsets corresponding to the above three scenarios may be the same or different.

Sixth resources uniformly distributed in the target transmission channel at a preset frequency domain interval from the RO; here, it is said that the alternative ROs are uniformly distributed in the target transport channel with other channels. For example, the preset frequency domain interval is the target transmission channel bandwidth/M, where M is a positive integer.

A seventh resource which deviates from the high frequency domain boundary of the activated uplink bandwidth part where the RO is located by a fifth deviation amount; here, the start position of the other channel may be located at a position shifted by a fifth offset from the high-frequency boundary of the activated upstream bandwidth portion where the RO is located, or the end position of the other channel may be located at a position shifted by a fifth offset from the high-frequency boundary of the activated upstream bandwidth portion where the RO is located, or the center frequency point of the other channel may be located at a position shifted by a fifth offset from the high-frequency boundary of the activated upstream bandwidth portion where the RO is located. It should be noted that the values of the fifth offsets corresponding to the above three scenarios may be the same or different.

a copy of message one; and the initial sequence and the cyclic shift of the preamble corresponding to the copy of the message one and the message one are the same, namely, the terminal repeatedly sends the message one through the target transmission resource.

The first padding information comprises at least one first sequence, the preamble initial sequence corresponding to the first sequence is the same as the preamble initial sequence corresponding to the message one, and the cyclic shift corresponding to the first sequence is different from the cyclic shift corresponding to the message one. Here, it is said that the first sequence and the message correspond to the same preamble initial sequence, but the cyclic shift for the preamble initial sequence is different. For example, the first sequence and the first message both correspond to the preamble initial sequence 1, the first sequence is specifically a sequence determined after the preamble initial sequence 1 is cyclically shifted by a first number of bits, and the first message is a sequence determined after the preamble initial sequence 1 is cyclically shifted by a second number of bits. When the first padding information has a plurality of first sequences, the cyclic shifts of the plurality of first sequences may be the same or may be partially or entirely different. Further, the first sequence is: preamble sequences other than the first message are in a preamble sequence set, wherein the preamble sequence set includes the first message candidate preamble sequence and other preamble sequences. For example, the system maintains a set of preamble sequences that includes 64 preamble sequences, wherein 40 preamble sequences are used for message one, and then the 40 preamble sequences are candidate preamble sequences for message one, and the remaining 24 preamble sequences are used for other purposes, which are referred to as other preamble sequences. Here, assuming that the message one is one of 40 messages-candidate preamble sequences, the first sequence may be one of the remaining 39 messages-candidate preamble sequences and 24 other preamble sequences.

Second padding information, the second padding information comprising at least one second sequence, the second sequence corresponding to a different preamble initiation sequence than the preamble initiation sequence corresponding to the message one, wherein here is said the second sequence and the message one corresponding to a different preamble initiation sequence, for example the second sequence corresponding to preamble initiation sequence 1 and the message one corresponding to preamble initiation sequence 2. Since the second sequence is different from the initial preamble sequence corresponding to the first message, the finally constructed sequences are different regardless of whether the cyclic shifts of the second sequence and the initial preamble sequence are the same. When the second padding information has a plurality of second sequences, the preamble initial sequences corresponding to the plurality of second sequences may be the same, or may be partially or completely different. Similar to the first sequence, the second sequence is: preamble sequences other than the first message are in a preamble sequence set, wherein the preamble sequence set includes the first message candidate preamble sequence and other preamble sequences. For example, the system maintains a set of preamble sequences that includes 64 preamble sequences, wherein 40 preamble sequences are used for message one, and then the 40 preamble sequences are candidate preamble sequences for message one, and the remaining 24 preamble sequences are used for other purposes, which are referred to as other preamble sequences. Here, assuming that the message one is one of 40 messages-candidate preamble sequences, the second sequence may be one of the remaining 39 messages-candidate preamble sequences and 24 other preamble sequences. The receiving form of the first padding information and the second padding information corresponds to the sending form of the first padding information in the terminal-side embodiment, and therefore, the description thereof is omitted here.

And a target pseudo-random sequence (which may also be referred to as a non-msg 1 message). The target pseudo-random sequence referred to herein may include, but is not limited to: a sequence of a given set or a sequence subject to a certain distribution, etc., such as at least one of a ZC sequence, a CAZAC sequence, a Gold sequence, and an M sequence other than a preamble sequence. The target transmission channel has 4 ROs in the same time and frequency domain, and the terminal selects 2 ROs from the ROs to send a message one and a target pseudo-random sequence, and the two ROs meet the OCB requirement.

It is worth pointing out that the combination of the preamble initial sequence and the cyclic shift corresponding to the first sequence in the first padding information and the second sequence in the second padding information is predefined or configured by the network device. The manner in which the terminal sends the first message may be predefined or configured by the network device.

Prior to step 171, the method further comprises: configuring Physical Random Access Channel (PRACH) configuration information for a terminal; wherein the PRACH configuration information is used for indicating at least one of an RO identification, an RO frequency division multiplexing capability and an RO frequency domain interval.

Prior to step 171, the method further comprises: configuring message time window configuration information for a terminal; wherein, the message time window configuration information is used to indicate at least one of a window start point, a window length (duration), a window period, a maximum listening failure number in the window, and a window time domain offset.

In the information transmission method of the embodiment of the invention, the network equipment receives the message I and the filling information on the target transmission resource, so that the bandwidth utilization rate is further improved on the basis of ensuring the normal operation of the random access process on the authorized frequency band, the availability of the idle transmission channel on the unauthorized frequency band can be ensured, and the normal operation of the random access process can be ensured.

The above embodiments respectively describe in detail the information transmission methods in different scenarios, and the following embodiments further describe the corresponding network devices with reference to the accompanying drawings.

As shown in fig. 18, a network device 1800 according to an embodiment of the present invention can implement the foregoing embodiment to receive a message one and padding information of a random access procedure on a target transmission resource of a target transmission channel, where the message one and the padding information are frequency division multiplexed; according to the first message, the details of the response message method are fed back to the terminal, and the same effect is achieved, the network device 1800 specifically includes the following functional modules:

a receiving module 1810, configured to receive a message one and padding information in a random access procedure on a target transmission resource of a target transmission channel; wherein the message one and the padding information are frequency division multiplexed;

and the response module 1820 is configured to feed back a response message to the terminal according to the message one.

alternatively, the first and second electrodes may be,

Wherein the other channels comprise at least one of the following resources:

Wherein the padding information comprises at least one of:

a copy of message one;

the first padding information comprises at least one first sequence, a preamble sequence corresponding to the first sequence is the same as a preamble sequence corresponding to the first message, and a cyclic shift corresponding to the first sequence is different from a cyclic shift corresponding to the first message;

second padding information, wherein the second padding information comprises at least one second sequence, and a preamble sequence corresponding to the second sequence is different from a preamble sequence corresponding to the first message; and

The target transmission channel is located in an unlicensed frequency band or a licensed frequency band.

Wherein, the network device 1800 further comprises: the first configuration module is used for configuring Physical Random Access Channel (PRACH) configuration information for the terminal; wherein the PRACH configuration information is used for indicating at least one of an RO identification, an RO frequency division multiplexing capability and an RO frequency domain interval.

Wherein, the network device 1800 further comprises: the second configuration module is used for configuring message time window configuration information for the terminal; the message time window configuration information is used for indicating at least one of a window starting point, a window length, a window period, the maximum interception failure times in the window and the window time domain offset.

Wherein, the network device 1800 further comprises: and the processing module is used for detecting the message and neglecting the filling information.

It is worth pointing out that, the network device in the embodiment of the present invention receives the message one and the padding information on the target transmission resource, so that on the basis of ensuring that the random access process is normally performed on the authorized frequency band, the bandwidth utilization rate is further improved, and it is ensured that the idle transmission channel is available on the unauthorized frequency band, and the normal operation of the random access process is ensured.

It should be noted that the division of the modules of the network device and the terminal is only a logical division, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And these modules can be realized in the form of software called by processing element; or may be implemented entirely in hardware; and part of the modules can be realized in the form of calling software by the processing element, and part of the modules can be realized in the form of hardware. For example, the determining module may be a processing element separately set up, or may be implemented by being integrated in a chip of the apparatus, or may be stored in a memory of the apparatus in the form of program code, and the function of the determining module is called and executed by a processing element of the apparatus. Other modules are implemented similarly. In addition, all or part of the modules can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.

For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), etc. For another example, when some of the above modules are implemented in the form of a processing element scheduler code, the processing element may be a general purpose processor, such as a Central Processing Unit (CPU) or other processor that can invoke the program code. As another example, these modules may be integrated together, implemented in the form of a system-on-a-chip (SOC).

In order to better achieve the above object, an embodiment of the present invention further provides a network device, which includes a processor, a memory, and a computer program stored in the memory and running on the processor, and when the processor executes the computer program, the steps in the information transmission method described above are implemented. Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the information transmission method as described above.

Specifically, the embodiment of the invention also provides a network device. As shown in fig. 19, the network device 1900 includes: antenna 191, radio frequency device 192, baseband device 193. Antenna 191 is connected to rf device 192. In the uplink direction, rf device 192 receives information via antenna 191 and sends the received information to baseband device 193 for processing. In the downlink direction, the baseband device 193 processes information to be transmitted and transmits the processed information to the rf device 192, and the rf device 192 processes the received information and transmits the processed information via the antenna 191.

The above band processing means may be located in the baseband means 193, and the method performed by the network device in the above embodiments may be implemented in the baseband means 193, and the baseband means 193 includes a processor 194 and a memory 195.

The baseband device 193 may include at least one baseband board, for example, a plurality of chips are disposed on the baseband board, as shown in fig. 19, wherein one chip, for example, the processor 194, is connected to the memory 195 to call the program in the memory 195 to perform the network device operations shown in the above method embodiments.

The baseband device 193 may further include a network interface 196, such as a Common Public Radio Interface (CPRI), for exchanging information with the rf device 192.

The processor may be a single processor or a combination of multiple processing elements, for example, the processor may be a CPU, an ASIC, or one or more integrated circuits configured to implement the methods performed by the network devices, for example: one or more microprocessors DSP, or one or more field programmable gate arrays FPGA, or the like. The storage element may be a memory or a combination of a plurality of storage elements.

Memory 195 may be either volatile memory or nonvolatile memory, or may 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 illustration and 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 Data Rate SDRAM, ddr SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). Memory 195 as described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

Specifically, the network device of the embodiment of the present invention further includes: a computer program stored in memory 195 and operable on processor 194, processor 194 invokes the computer program in memory 195 to perform the methods performed by the modules shown in fig. 18.

In particular, the computer program when invoked by the processor 194 is operable to perform: receiving a message I and filling information of a random access process on a target transmission resource of a target transmission channel; wherein the message one and the padding information are frequency division multiplexed; and feeding back a response message to the terminal according to the message I.

The network equipment in the embodiment of the invention receives the message I and the filling information on the target transmission resource, thereby further improving the bandwidth utilization rate on the basis of ensuring the normal operation of the random access process on the authorized frequency band, ensuring the availability of the idle transmission channel on the unauthorized frequency band and ensuring the normal operation of the random access process.

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 invention.

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 embodiments provided in the present application, it should be understood that the disclosed 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 through some interfaces, devices or units, 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 invention 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 invention may be embodied in the form of a software product, which is stored in a storage medium and includes 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 invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

Furthermore, it is to be noted that in the device and method of the invention, it is obvious that the individual components or steps can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of performing the series of processes described above may naturally be performed chronologically in the order described, but need not necessarily be performed chronologically, and some steps may be performed in parallel or independently of each other. It will be understood by those skilled in the art that all or any of the steps or elements of the method and apparatus of the present invention may be implemented in any computing device (including processors, storage media, etc.) or network of computing devices, in hardware, firmware, software, or any combination thereof, which can be implemented by those skilled in the art using their basic programming skills after reading the description of the present invention.

Thus, the objects of the invention may also be achieved by running a program or a set of programs on any computing device. The computing device may be a general purpose device as is well known. The object of the invention is thus also achieved solely by providing a program product comprising program code for implementing the method or the apparatus. That is, such a program product also constitutes the present invention, and a storage medium storing such a program product also constitutes the present invention. It is to be understood that the storage medium may be any known storage medium or any storage medium developed in the future. It is further noted that in the apparatus and method of the present invention, it is apparent that each component or step can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of executing the series of processes described above may naturally be executed chronologically in the order described, but need not necessarily be executed chronologically. Some steps may be performed in parallel or independently of each other.

While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.

Claims

1. An information transmission method applied to a terminal side, comprising:

2. The information transmission method according to claim 1, wherein when the target transmission channel includes at least one physical random access channel transmission opportunity (RO), the target transmission resource includes at least one RO and at least one other channel located in a frequency domain portion of the target transmission channel excluding all ROs,

alternatively, the first and second electrodes may be,

when at least two ROs are included in the target transmission channel, the target transmission resource includes a plurality of the at least two ROs.

3. The information transmission method according to claim 2, wherein the other channels comprise at least one of the following resources:

a first resource frequency-domain symmetric to the RO with respect to a frequency center of the target transmission channel;

a second resource offset from a high frequency boundary of the target transmission channel by a first offset amount;

and the eighth resource deviates from the low-frequency domain boundary of the activated uplink bandwidth part where the RO is located by a sixth offset.

4. The information transmission method according to claim 1 or 2, wherein the padding information comprises at least one of:

a copy of the message one;

first padding information, wherein the first padding information comprises at least one first sequence, a preamble initial sequence corresponding to the first sequence is the same as a preamble initial sequence corresponding to the first message, and a cyclic shift of the first sequence is different from a cyclic shift corresponding to the first message;

5. The information transmission method according to claim 4, wherein the first sequence and/or the second sequence is/are: preamble sequences other than the first message are in a preamble sequence set, wherein the preamble sequence set comprises a candidate preamble sequence of the first message and other preamble sequences.

6. The information transmission method according to claim 1, wherein before the step of sending the message one of the random access procedure and the padding information to the network device on the target transmission resource of the target transmission channel, the method further comprises:

determining a target transmission channel in an authorized frequency band;

alternatively, the first and second electrodes may be,

and intercepting the transmission resources of the unlicensed frequency band to determine a target transmission channel.

7. The information transmission method according to claim 6, wherein the step of listening for the transmission resource in the unlicensed frequency band comprises:

intercepting at least one first RO of a first channel in an unlicensed frequency band within a message time window; the at least one first RO corresponds to a first association signal comprising: at least one of a first synchronization signal block, SSB, and a first channel state indication reference signal, CSI-RS;

if the first RO is not sensed to be idle in the message time window, or if the first RO is sensed to be occupied for N consecutive times in the message time window, indicating failure indication information to an upper layer, wherein the failure indication information is used for indicating: a random access procedure failure, a message-send failure, or a random access procedure has a problem.

8. The information transmission method according to claim 7, wherein after the step of indicating the failure indication information to the upper layer, further comprising:

listening for at least one second RO of the first channel in an unlicensed frequency band for a next message time window, wherein the at least one second RO corresponds to a second association signal comprising: at least one of a second SSB and a second CSI-RS, the second association signal being different from the first association signal;

alternatively, the first and second electrodes may be,

and intercepting a target RO of a second channel in an unlicensed frequency band within a next message time window, wherein the frequency domain range of the second channel is at least partially different from the frequency domain range of the first channel, and the target RO comprises: a first RO, a second RO, or other ROs, the other ROs corresponding to associated signals that are different from the first associated signal and the second associated signal.

9. The information transmission method according to claim 7, wherein after the step of indicating the failure indication information to the upper layer, further comprising:

if the message time window is not finished, continuing to listen to at least one second RO of the first channel in the unlicensed frequency band within the message time window, where the at least one second RO corresponds to a second associated signal, and the second associated signal includes: at least one of a second SSB and a second CSI-RS, the second association signal being different from the first association signal;

alternatively, the first and second electrodes may be,

if the message time window is not finished, continuing to monitor a target RO of a second channel in an unlicensed frequency band within the message time window, where a frequency domain range of the second channel is at least partially different from a frequency domain range of the first channel, and the target RO includes: a first RO, a second RO, or other ROs, the other ROs corresponding to associated signals that are different from the first associated signal and the second associated signal.

10. The information transmission method according to claim 8 or 9, wherein the step of listening for at least one second RO for the first channel in the unlicensed band comprises:

and if the measurement result of the second associated signal in the first channel meets a preset condition, intercepting at least one second RO of the first channel in an unauthorized frequency band.

11. The information transmission method according to claim 8 or 9, wherein the step of listening for the target RO of the second channel in the unlicensed band comprises:

12. The information transmission method according to claim 6 or 7, wherein the step of listening to the transmission resources in the unlicensed frequency band to determine the target transmission channel further comprises:

acquiring Physical Random Access Channel (PRACH) configuration information; wherein the PRACH configuration information is used for indicating at least one of an RO identification, an RO frequency division multiplexing capability and an RO frequency domain interval.

13. The information transmission method according to claim 6 or 7, wherein the step of listening to the transmission resources in the unlicensed frequency band to determine the target transmission channel further comprises:

acquiring message time window configuration information; the message time window configuration information is used for indicating at least one of a window starting point, a window length, a window period, the maximum interception failure times in the window and window time domain offset.

14. The information transmission method according to claim 1, wherein the bandwidth occupied by the target transmission resource is greater than or equal to a preset percentage of a nominal channel bandwidth of the target transmission channel.

15. A terminal, comprising:

16. A terminal, characterized in that the terminal comprises a processor, a memory and a computer program stored on the memory and running on the processor, which computer program, when executed by the processor, carries out the steps of the information transmission method according to any one of claims 1 to 14.

17. An information transmission method is applied to a network device side, and is characterized by comprising the following steps:

and feeding back a response message to the terminal according to the first message.

18. The information transmission method according to claim 17, wherein when the target transmission channel includes at least one physical random access channel transmission opportunity (RO), the target transmission resource includes at least one RO and at least one other channel located in a frequency domain portion of the target transmission channel excluding all ROs,

alternatively, the first and second electrodes may be,

19. The information transmission method according to claim 18, wherein the other channels include at least one of the following resources:

20. The information transmission method according to claim 17 or 18, wherein the padding information comprises at least one of:

a copy of the message one;

first padding information, wherein the first padding information comprises at least one first sequence, a preamble initial sequence corresponding to the first sequence is the same as a preamble initial sequence corresponding to the first message, and a cyclic shift corresponding to the first sequence is different from a cyclic shift corresponding to the first message;

21. The information transmission method according to claim 20, wherein the first sequence and/or the second sequence is/are: preamble sequences other than the first message are in a preamble sequence set, wherein the preamble sequence set comprises a candidate preamble sequence of the first message and other preamble sequences.

22. The information transmission method according to claim 17, wherein the target transmission channel is located in an unlicensed frequency band or a licensed frequency band.

23. The information transmission method according to claim 17 or 22, wherein the step of receiving the message one of the random access procedure and the padding information on the target transmission resource of the target transmission channel further comprises:

configuring Physical Random Access Channel (PRACH) configuration information for a terminal; wherein the PRACH configuration information is used for indicating at least one of an RO identification, an RO frequency division multiplexing capability and an RO frequency domain interval.

24. The information transmission method according to claim 17 or 22, wherein the step of receiving the message one of the random access procedure and the padding information on the target transmission resource of the target transmission channel further comprises:

configuring message time window configuration information for a terminal; the message time window configuration information is used for indicating at least one of a window starting point, a window length, a window period, the maximum interception failure times in the window and window time domain offset.

25. The information transmission method of claim 17, wherein after the step of receiving the message one of the random access procedure and the padding information on the target transmission resource of the target transmission channel, further comprising:

detecting the message and ignoring the padding information.

26. The information transmission method according to claim 17, wherein the bandwidth occupied by the target transmission resource is greater than or equal to a preset percentage of a nominal channel bandwidth of the target transmission channel.

27. A network device, comprising:

28. A network device comprising a processor, a memory, and a computer program stored on the memory and running on the processor, the processor implementing the steps of the information transmission method according to any one of claims 17 to 26 when executing the computer program.

29. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, carries out the steps of the information transmission method according to one of claims 1 to 14, 17 to 26.