CN113543081A

CN113543081A - Information transmission method and terminal

Info

Publication number: CN113543081A
Application number: CN202010314215.6A
Authority: CN
Inventors: 金巴·迪·阿达姆·布巴卡; 刘思綦; 杨晓东
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2021-10-22
Anticipated expiration: 2040-04-20
Also published as: WO2021213212A1; CN113543081B

Abstract

The invention provides an information transmission method and a terminal, wherein the information transmission method is applied to the terminal, the terminal is a first terminal, and the information transmission method comprises the following steps: and sending complete information or incremental information of a secondary link time division multiplexing mode SL TDD pattern to a second terminal. The technical scheme provided by the invention solves the problem that part of SL resources can not be used because the SL TDD pattern information in the SL MIB can be compressed when the existing terminal sends signals.

Description

Information transmission method and terminal

Technical Field

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

Background

Some communication systems (e.g., 5G NR systems) support Sidelink (SL) transmission. However, in these communication systems, the configuration of the Sidelink Time Division Duplex (SL TDD) pattern in the 5G NR system Information exceeds the capacity of the Sidelink Master Information Block (SL MIB), so the terminal compresses the SL TDD pattern Information in the SL MIB when transmitting signals, and thus part of the SL resources cannot be used.

Disclosure of Invention

The embodiment of the invention provides an information transmission method and a terminal, which are used for solving the problem that partial SL resources cannot be used because the existing terminal can compress SL TDD pattern information in a SL MIB when sending signals.

In order to solve the technical problem, the invention is realized as follows:

in a first aspect, an embodiment of the present invention provides an information transmission method, which is applied to a first terminal, and the method includes:

and sending complete information or incremental information of a secondary link time division multiplexing mode SL TDD pattern to a second terminal.

In a second aspect, an embodiment of the present invention further provides an information transmission method, which is applied to a second terminal, and the method includes:

and receiving complete information or incremental information of a secondary link time division multiplexing (SL TDD) pattern sent by a first terminal.

In a third aspect, an embodiment of the present invention further provides a terminal, where the terminal is a first terminal, and the terminal includes:

and the sending module is used for sending the complete information or the incremental information of the SL TDD pattern to the second terminal.

In a fourth aspect, an embodiment of the present invention further provides a terminal, where the terminal is a second terminal, and the terminal includes:

a receiving module, configured to receive complete information or incremental information of a secondary link time division multiplexing SL TDD pattern sent by a first terminal.

In a fifth aspect, an embodiment of the present invention further provides a terminal, including a processor, a memory, and a computer program stored on the memory and executable on the processor, where the computer program, when executed by the processor, implements the steps of the information transmission method according to the first aspect; alternatively, the computer program realizes the steps of the information transmission method as described in the second aspect when executed by the processor.

In a sixth aspect, the present invention further provides 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 in the first aspect; alternatively, the computer program realizes the steps of the information transmission method as described in the second aspect when executed by the processor.

In the embodiment of the present invention, the first terminal may send the complete information of the SL TDD pattern to the second terminal, or may send the incremental information of the SL TDD pattern to the second terminal to supplement or replace the SL TDD pattern information sent to the second terminal even when the SL TDD pattern configuration capacity is large. Therefore, the first terminal can send all SL TDD pattern information to the second terminal, SL TDD pattern information compression caused by large configuration capacity of the SL TDD pattern is avoided, the second terminal can obtain all SL TDD pattern information, all SL resources can be ensured to be used, and the utilization rate of the SL resources at the terminal is improved.

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 exercise.

Fig. 1 is a flowchart of an information transmission method according to an embodiment of the present invention;

fig. 2 is a flowchart of another information transmission method provided in an embodiment of the present invention;

fig. 3 is a structural diagram of a terminal according to an embodiment of the present invention;

fig. 4 is a block diagram of another terminal provided in an embodiment of the present invention;

fig. 5 is a structural diagram of another terminal according to an embodiment of the present invention.

Detailed Description

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

It should be noted that, a Long Term Evolution (LTE) system can support a Sidelink (SL) at present, and is used for supporting direct data transmission between terminals without a network device. The design of LTE sildelink is suitable for specific public safety affairs (emergency communication in disaster places such as fire places or earthquakes), or Vehicle networking (V2X) communication, etc. The internet of vehicles communication includes various services such as basic security type communication, automatic driving, formation, sensor expansion, and the like. Since LTE Sidelink only supports broadcast communication, it is mainly used for basic security-class communication, and other advanced V2X services with strict QoS requirements in terms of latency, reliability, etc. will be supported by New Radio (NR) Sidelink.

The embodiment of the invention provides an information transmission method, which is applied to an NR communication system. It should be noted that the information transmission method provided in the embodiment of the present invention is applied to a first terminal, where the first terminal is not particularly limited to a certain terminal or a certain class of terminals, and the terminal may be used as a first terminal to implement the scheme in the embodiment of the present invention in some scenarios, or may be used as a second terminal to implement the scheme in the embodiment of the present invention in other scenarios, which is not limited to this.

Referring to fig. 1, fig. 1 is a flowchart of an information transmission method according to an embodiment of the present invention, and as shown in fig. 1, the information transmission method includes the following steps:

step 101, sending the complete information or the incremental information of the SL TDD pattern to the second terminal.

It should be noted that the complete information of the Sidelink Time Division Duplex pattern (SL TDD pattern) may refer to all information of the SL TDD pattern; the incremental information of the SL TDD pattern may refer to not all information of the SL TDD pattern, for example, the incremental information of the SL TDD pattern is partial information of the SL TDD pattern, or information supplemented for the SL TDD pattern, or information obtained by replacing partial information in the complete information of the SL TDD pattern, and the like.

In the embodiment of the present invention, the first terminal may send the complete information or the incremental information of the SL TDD pattern to the second terminal.

Optionally, the first terminal may send the complete information of the SL TDD pattern to the second terminal after receiving the complete information of the SL TDD pattern sent by the network device; or, the first terminal may also generate complete information of the SL TDD pattern based on a preset algorithm after receiving the SL request information sent by the second terminal, and send the complete information of the SL TDD pattern to the second terminal; or, after receiving the SL request Information sent by the second terminal, the first terminal may send incremental Information to the second terminal according to SL TDD pattern Information in a Sidelink Master Information Block (SL MIB) sent by the first terminal; and the like.

According to the technical scheme provided by the embodiment of the invention, the first terminal can send the complete information of the SL TDD pattern to the second terminal, or can send the incremental information of the SL TDD pattern to the second terminal to supplement or replace the SL TDD pattern information sent to the second terminal even under the condition that the SL TDD pattern configuration capacity is large. Therefore, the first terminal can send all SL TDD pattern information to the second terminal, SL TDD pattern information compression caused by large configuration capacity of the SL TDD pattern is avoided, the second terminal can obtain all SL TDD pattern information, all SL resources can be ensured to be used, and the utilization rate of the SL resources at the terminal is improved.

Optionally, the first terminal may send the complete information or the incremental information of the SL TDD pattern to the second terminal through a specific interface or signaling. In this embodiment, the step 101 may include:

and sending the complete information or the incremental information of the SL TDD pattern to the second terminal through a PC5 Radio Resource Control (RRC) signaling.

Note that the PC5 interface is a terminal-to-terminal direct communication interface introduced in the Device-to-Device (D2D) project of 3GPP Rel-12. The adjacent terminals can perform data transmission through a direct connection link in a short distance range without forwarding through network equipment or information transmission between the terminals through a traditional cellular link.

In this embodiment, the first terminal sends the complete information or the incremental information of the SL TDD pattern to the second terminal through a PC5RRC signaling, so as to effectively utilize a direct communication interface between the terminals to transmit data, ensure that the complete information or the incremental information of the SL TDD pattern can be sent to the second terminal, and ensure that SL resources can be effectively used.

Of course, the first terminal may also send the complete information or the incremental information of the SL TDD pattern to the second terminal through another interface or signaling, which is not limited in this embodiment.

Optionally, before the first terminal sends the complete information or the incremental information of the SL TDD pattern to the second terminal, that is, before the step 101, at least one of the following may be further included:

acquiring complete information or incremental information of the SL TDD pattern sent by network equipment;

receiving SL request information sent by the second terminal;

and generating complete information or incremental information of the SL TDD pattern.

That is, the first terminal may send the complete information or the incremental information of the SL TDD pattern to the second terminal when at least one of the three situations is met, which will be described in detail below:

in an embodiment, when the first terminal receives the complete information or the incremental information of the SL TDD pattern sent by the network device, the first terminal sends the complete information or the incremental information of the SL TDD pattern to the second terminal, for example, the complete information or the incremental information of the SL TDD pattern may be sent through the PC5RRC signaling. The first terminal may send the received complete information or incremental information of the SL TDD pattern to the second terminal; or, the first terminal may also send the increment information of the SL TDD pattern to the second terminal when receiving the complete information of the SL TDD pattern; or the first terminal sends the complete information of the SL TDD pattern to the second terminal when receiving the increment information of the SL TDD pattern.

In another embodiment, when the first terminal receives a SL information request sent by the second terminal, the complete information or the incremental information of the SL TDD pattern is sent to the second terminal. For example, the second terminal actively requests the first terminal for SL resources or other SL information and sends the SL request information to the first terminal, and the first terminal responds to the SL request information and sends the complete information of the SL TDD pattern to the second terminal; or the first terminal sends the increment information of the SL TDD pattern to the second terminal according to the SL TDD pattern information in the SL MIB sent by the first terminal.

In another embodiment, the first terminal generates the complete information or the incremental information of the SL TDD pattern, and sends the complete information or the incremental information of the SL TDD pattern to the second terminal. In this embodiment, the first terminal may generate the complete information or the incremental information of the SL TDD pattern based on a preset algorithm and send the complete information or the incremental information to the second terminal, when not receiving the SL request information sent by the second terminal, nor receiving the complete information or the incremental information of the SL TDD pattern sent by the network device.

In another embodiment, the first terminal may generate complete information of the SL TDD pattern and send the complete information of the SL TDD pattern to the second terminal when receiving the SL request information sent by the second terminal. Or, the first terminal may generate the increment information of the SL TDD pattern and send the increment information of the SL TDD pattern to the second terminal, when receiving the SL request information sent by the second terminal.

In another embodiment, the first terminal may generate incremental information of the SL TDD pattern and send the incremental information to the second terminal when acquiring the complete information of the SL TDD pattern sent by the network device. Or, the first terminal may generate complete information of the SL TDD pattern based on the incremental information and send the complete information to the second terminal, when the incremental information of the SL TDD pattern sent by the network device is acquired.

It should be noted that the embodiment of the present invention further includes other implementation manners, so that the first terminal sends the complete information or the incremental information of the SL TDD pattern to the second terminal, which is not described herein again.

In this embodiment, the step 101 may include at least one of the following:

acquiring or generating complete information of the SL TDD pattern, and sending the complete information to the second terminal;

acquiring or generating complete information of the SL TDD pattern, and sending incremental information of the SL TDD pattern to the second terminal;

acquiring or generating incremental information of the SL TDD pattern, and sending the incremental information to the second terminal;

and acquiring or generating incremental information of the SL TDD pattern, and sending complete information of the SL TDD pattern to the second terminal.

That is to say, the first terminal acquires or generates complete information of the SL TDD pattern, which may be sending the complete information to the second terminal, or sending incremental information of the SL TDD pattern to the second terminal; the first terminal acquires or generates the increment information of the SL TDD pattern, which may be sending the increment information to the second terminal, or sending complete information of the SL TDD pattern to the second terminal based on the increment information. The following will be illustrated by means of several specific embodiments:

in a first optional implementation manner, when a first terminal acquires complete information of a SL TDD pattern sent by a network device, the first terminal sends the acquired complete information of the SL TDD pattern to a second terminal; or when the increment information of the SL TDD pattern sent by the network equipment is acquired, the increment information is sent to the second terminal. In this embodiment, the first terminal does not perform any operation on the acquired complete information or incremental information of the SL TDD pattern, which is equivalent to forwarding the acquired complete information or incremental information of the SL TDD pattern to the second terminal.

In a second optional implementation manner, when the first terminal acquires complete information of the SL TDD pattern sent by the network device, the first terminal may generate incremental information of the SL TDD pattern according to the acquired complete information, for example, extract partial information in the complete information to generate incremental information of the SL TDD pattern, or generate the incremental information of the SL TDD pattern based on a preset algorithm, and send the generated incremental information of the SL TDD pattern to the second terminal.

In a third optional implementation manner, when the first terminal acquires the incremental information of the SL TDD pattern sent by the network device, the first terminal may generate complete information of the SL TDD pattern according to the acquired incremental information, for example, the incremental information may be supplemented to generate complete information of the SL TDD pattern, and the generated complete information of the SL TDD pattern is sent to the second terminal.

Of course, before the first terminal sends the complete information or the incremental information of the SL TDD pattern to the second terminal, the first terminal may generate the complete information or the incremental information of the SL TDD pattern by itself. For example, the first terminal may generate complete information or incremental information of the SL TDD pattern when receiving the SL request information sent by the second terminal, and send the generated complete information or incremental information of the SL TDD pattern to the second terminal. Or, when the first terminal generates the complete information of the SL TDD pattern, the first terminal may extract partial information in the complete information to serve as the incremental information of the SL TDD pattern, and send the incremental information to the second terminal. Or, when the first terminal generates the increment information of the SL TDD pattern, the first terminal may generate complete information of the SL TDD pattern based on the increment information, and send the complete information to the second terminal.

In the embodiment of the invention, the first terminal can send the complete information or the incremental information of the SL TDD pattern to the second terminal under the condition of acquiring or generating the complete information of the SL TDD pattern; or, the first terminal can send the complete information or the incremental information of the SL TDD pattern to the second terminal under the condition of obtaining or generating the incremental information of the SL TDD pattern, so as to ensure that the second terminal can obtain all the SL TDD pattern information, ensure that all SL resources can be used, and improve the utilization rate of the SL resources at the terminal.

Optionally, the step 101 may further include:

obtaining SL TDD pattern information in the SL MIB sent to the second terminal, and replacing target information in the SL TDD pattern information;

and sending the replaced SL TDD pattern information to the second terminal.

It can be understood that the first terminal can replace the target information in the SL TDD pattern information according to the SL TDD pattern information that has been sent to the second terminal, and further can supplement or update the SL TDD pattern information that has been sent. Optionally, the first terminal may send the replaced target information to the second terminal, or may send the SL TDD pattern information including the replaced target information to the second terminal after replacing the target information in the SL TDD pattern.

Wherein the target information comprises at least one of:

the number of uplink time slots;

and the number of uplink symbols.

That is, the first terminal can obtain the SL TDD pattern information in the SL MIB sent to the second terminal, and replace the number of uplink timeslots and/or the number of uplink symbols in the SL TDD pattern information. For example, the first terminal analyzes that the number of uplink slots is 52 and the number of uplink symbols is 4 from the SL MIB transmitted to the second terminal; the first terminal can replace the number of uplink time slots and the number of uplink symbols, and sends replaced SL TDD pattern information to the second terminal through a PC5RRC signaling, where in the replaced SL TDD pattern information, the number of uplink time slots is 55, and the number of uplink symbols is 6, so that the SL resource that the second terminal can use is the resource corresponding to the number of uplink time slots being 55 and the number of uplink symbols being 6. Therefore, the first terminal can replace or update the SL TDD pattern information sent to the second terminal, so that the flexibility of the terminal for SL TDD pattern information transmission is improved, all SL resources can be ensured to be used, and the utilization rate of the SL resources at the terminal is improved.

Optionally, in this embodiment of the present invention, step 101 may further include:

acquiring first SL TDD pattern information in the SL MIB sent to the second terminal, generating incremental information according to the first SL TDD pattern information, and sending the incremental information to the second terminal.

That is, the incremental information sent by the first terminal to the second terminal is complementary to the first SL TDD pattern information already sent to the second terminal. Optionally, the incremental information is at least one of:

the SLTDD pattern information is obtained after supplementing the first information existing in the first SL TDD pattern information;

information not included in the first SL TDD pattern information.

In this embodiment of the present invention, the incremental information includes at least one of the following items:

the number of TDD patterns;

TDD pattern numbering;

a TDD pattern period;

the number of uplink time slots;

the number of uplink symbols;

and starting position of uplink symbol.

In an embodiment, the supplementing the existing first information of the first SL TDD pattern information may further be: assuming that the network device sends two SL TDD patterns, but due to the limitation of the number of bits, the SL MIB sent by the first terminal to the second terminal may only indicate the available resources of one of the SL TDD patterns, and the incremental information sent by the first terminal to the second terminal may be the available resources indicating the two SL TDD patterns; for example, the SL MIB may indicate the number of available resources of the first SL TDD pattern, and the incremental information sent by the first terminal to the second terminal may indicate the number of available resources of two SL TDD patterns.

For example, the number of available timeslots of the first SL TDD pattern indicated in the SL MIB sent by the first terminal to the second terminal is 10; the first terminal sends increment information of the SL TDD pattern to the second terminal through a PC5RRC signaling, wherein the increment information indicates that the number of available time slots of the first SL TDD pattern is 10, and the number of available time slots of the second SL TDD pattern is 12; then the SL resources that the second terminal may use are: resources corresponding to 10 available timeslots in the first SL TDD pattern and 12 available timeslots in the second SL TDD pattern.

In another embodiment, the incremental information may also refer to information that is not included in the first SL TDD pattern information. For example, the SL MIB sent by the first terminal to the second terminal may indicate the number of available resources of the first SL TDD pattern, and the first terminal may further send incremental information to the second terminal, where the incremental information may indicate the number of available resources of the second SL TDD pattern.

For example, in embodiment 1, the number of available timeslots of the first SL TDD pattern indicated in the SL MIB sent by the first terminal to the second terminal is 10, and the first terminal may send, through the PC5RRC signaling, increment information of the SL TDD pattern to the second terminal, where the increment information indicates that the number of uplink timeslots of the second SL TDD pattern is 12; then the SL resources that the second terminal may use are: resources corresponding to 10 available timeslots in the first SL TDD pattern and 12 available timeslots in the second SL TDD pattern.

Or as in embodiment 2, the first SL TDD pattern information that is obtained by the first terminal analyzing from the SL MIB sent to the second terminal includes: the number of uplink time slots is 52, and the number of uplink symbols is 4; the first terminal may supplement the number of uplink timeslots and the number of uplink symbols in the first SL TDD pattern information with information to generate incremental information, where the incremental information is that the number of uplink timeslots is 3 and the number of uplink symbols is 2, and send the incremental information to the second terminal; then, the SL resource that can be used by the second terminal is a resource corresponding to the number of uplink slots being 55 and the number of uplink symbols being 6.

Or as in embodiment 3, the incremental information of the SL TDD pattern sent by the first terminal to the second terminal may also be that second information is added to the first SL TDD pattern, where the second information is information that is not included in the first SL TDD pattern. For example, the SL TDD pattern information sent by the first terminal to the second terminal indicates that symbols 4 to 12 in one timeslot are used for SL transmission, the first terminal may send incremental information of the SL TDD pattern to the second terminal, where the incremental information indicates that the starting position of the uplink symbol is 3, and then the second terminal may actually transmit on symbols 3 to 13 in the timeslot.

In the embodiment of the invention, the first terminal sends the increment information of the SL TDD pattern to the second terminal, so that the SL TDD pattern information already sent by the first terminal can be supplemented, the first terminal can send all SL TDD pattern information to the second terminal, the SL TDD pattern information compression caused by large configuration capacity of the SL TDD pattern is avoided, all SL resources can be ensured to be used, and the utilization rate of the SL resources at the terminal is improved.

It should be noted that, in the embodiment of the present invention, the complete information of the SL TDD pattern includes at least one of the following items:

subcarrier spacing (SCS);

at least one Time Division multiplexing Uplink Downlink pattern (TDD UL DL pattern) configuration.

That is, the complete information of the SL TDD pattern sent by the first terminal to the second terminal includes the SCS and/or at least one TDD UL DL pattern configuration. Wherein the TDD UL DL pattern configuration comprises at least one of:

a Dl UL Transmission Periodicity (Dl UL Transmission Periodicity);

number of Downlink Slots (nrof Downlink Slots);

number of Downlink Symbols (nrof Downlink Symbols);

number of Uplink Slots (nruf Uplink Slots);

number of Uplink Symbols (nrof Uplink Symbols).

For example, the TDD UL DL pattern configuration may be composed of an uplink and downlink transmission period, a downlink timeslot number, a downlink symbol number, an uplink timeslot number, and an uplink symbol number.

In order to better understand the scheme provided by the embodiment of the present invention, the following embodiment is illustrated by a specific example, and the embodiment includes the following two embodiments:

in the first embodiment, the first terminal sends the complete information of the SL TDD pattern to the second terminal through PC5RRC signaling. When the first terminal establishes the SL connection with the second terminal, the first terminal may send the complete information of the SL TDD pattern to the second terminal through the PC5RRC signaling, or after the second terminal actively requests the SL resource or other SL information from the first terminal, the first terminal sends the complete information of the SL TDD pattern to the second terminal through the PC5RRC signaling.

For example, the complete information of the SL TDD pattern is directly obtained by the first terminal from the network device broadcast message and forwarded through the PC5RRC signaling.

Optionally, the complete information of the SL TDD pattern may include a subcarrier spacing (SCS), and/or at least one TDD UL DL pattern configuration; each TDD UL DL pattern configuration may be composed of an Uplink and Downlink Transmission period (DL UL Transmission Periodicity), a Downlink time slot number (nrod Downlink Slots), a Downlink symbol number (nrod Downlink Symbols), an Uplink time slot number (nrod Uplink Slots), and an Uplink symbol number (nrod Uplink Symbols).

Or, the complete information of the SL TDD pattern is the replacement of the SL TDD pattern information in the SL MIB sent by the first terminal.

The replacing method may replace the SL TDD pattern information in the SL MIB with a new one: the available time slots. The available time slots may be: at least one of the number of Uplink Slots (nrod Uplink Slots _ new), the number of Uplink Symbols (nrod Uplink Symbols _ new, for example, at least Symbols X to X + Y-1 are Slots of Uplink Symbols), and the like.

For example: the number of uplink time slots obtained by the second terminal through analysis from the SL MIB sent by the first terminal is 52, and the number of uplink symbols is 4; if the number of uplink slots analyzed by the second terminal from the PC5RRC signaling sent by the first terminal is 55 and the number of uplink symbols is 6, the SL resources that the second terminal can use are: the number of uplink time slots is 55, the number of uplink symbols is 6, and the corresponding resource pool.

In a second embodiment, the first terminal sends the increment information of the SL TDD pattern to the second terminal through PC5RRC signaling in conjunction with the SL MIB broadcast configuration.

Optionally, the first terminal sends the increment information of the SL TDD pattern to the second terminal through a PC5RRC signaling; or, the second terminal actively requests the SL resource or other SL information from the first terminal, and the first terminal sends the increment information of the SL TDD pattern to the second terminal through PC5RRC signaling.

Specifically, the incremental information of the SL TDD pattern is supplemented by the SL TDD pattern information in the SL MIB sent by the first terminal.

The supplementary method may be to additionally add in the SL TDD pattern information in the SL MIB: at least one of the number of TDD patterns, the period of TDD patterns, the number of Uplink Slots (nruf Uplink Slots _ delta), and the number of Uplink Symbols (nruf Uplink Symbols _ delta).

For example, example 1: the number of uplink time slots obtained by the second terminal through analysis from the SL MIB sent by the first terminal is 52, and the number of uplink symbols is 4; if the number of uplink slots analyzed by the second terminal from the PC5RRC signaling sent by the first terminal is 3 and the number of uplink symbols is 2, the SL resources that the second terminal can use are: the number of uplink time slots is 55(52+3), the number of uplink symbols is 6(4+2), and the corresponding resource pool.

In addition, the supplementary method may further be: it is assumed that the base station (or the network device) provides two TDD patterns, but due to the limitation of the bit number, the SL MIB may only indicate the available resources of one of the TDD patterns, and the incremental information may indicate the available resources of two TDD patterns, or indicate the available resources of another TDD pattern (i.e., the TDD pattern not indicated by the SL MIB). For example, the SL MIB may indicate the number of available resources in TDD patterns 1, and the delta information may indicate the number of available resources for two TDD patterns to the second terminal 2, or indicate the number of available resources for TDD patterns 2 to the second terminal.

For example, example 2: the number of available time slots in the TDD pattern1 analyzed and obtained by the second terminal from the SL MIB sent by the first terminal is 10; if the uplink timeslot number of TDD pattern2 obtained from the PC5RRC signaling sent by the first terminal by the second terminal is 12, the SL resources that the second terminal can use are: resource pools corresponding to 10 available time slots in the TDD pattern1 and 12 available time slots in the TDD pattern 2.

For example, example 3: the number of available time slots in pattern1 analyzed and obtained from the SL MIB sent by the first terminal by the second terminal is 10; the second terminal obtains, from the PC5RRC signaling sent by the first terminal, that the number of available timeslots in the TDD pattern1 is 10, and the number of uplink timeslots in the TDD pattern2 is 12, then the SL resources that the second terminal can use are: resource pools corresponding to 10 available time slots in the TDD pattern1 and 12 available time slots in the TDD pattern 2.

It should be noted that the increment information of the SL TDD pattern may further include some information that is not included in the SL TDD configuration, such as a starting position of an uplink symbol and/or the number of uplink symbols.

Optionally, the incremental information indicates the starting position of the uplink symbol and/or the number of uplink symbols in some specific time slots, where the specific time slots are time slots containing uplink symbols meeting requirements.

For example: and indicating 4-12 symbols in one slot to be used for SL transmission in the pre-configuration of the second terminal, determining 4-12 symbols in one slot to be used for SL transmission by the second terminal of the coverage outside user through the pre-configuration, and if the first terminal informs the starting position of an uplink symbol of the second terminal to be a symbol 3 through the increment information of the SL TDD pattern, actually, the second terminal can perform SL transmission on the symbols 3-13 in the resource pool.

Further, in this embodiment, it is also possible that the SL TDD pattern is notified to an in-coverage user, for example, a first terminal, through a base station broadcast message, and the first terminal broadcasts the SL TDD pattern through the SL MIB. Therefore, the first terminal is not required to calculate the specific contents of the complete information of the SL TDD pattern and the increment information of the SL TDD pattern, and the specific contents are directly obtained from the base station broadcast message and forwarded to the second terminal.

In this embodiment, the first terminal can send all SL TDD pattern information to the second terminal, so that compression of the SL TDD pattern information due to a large configuration capacity of the SL TDD pattern is avoided, the second terminal can obtain all SL TDD pattern information, all SL resources can be used, and the utilization rate of the SL resources at the terminal is improved.

The embodiment of the invention also provides another information transmission method, the information transmission method provided by the embodiment of the invention is applied to a second terminal, and the second terminal is not particularly specified to a certain terminal or a certain class of terminals. Referring to fig. 2, fig. 2 is a flowchart of another information transmission method according to an embodiment of the present invention, and as shown in fig. 2, the information transmission method includes the following steps:

step 201, receiving complete information or incremental information of the SL TDD pattern sent by the first terminal.

It should be noted that the second terminal may send the SL request message to the first terminal first, and then receive the complete information or the incremental information of the SL TDD pattern sent by the first terminal in response to the SL request message.

Optionally, the second terminal may receive the complete information or the incremental information of the SL TDD pattern sent by the first terminal through a PC5RRC signaling, so as to effectively utilize a direct communication interface between the terminals to perform data transmission, ensure that the second terminal can receive the complete information or the incremental information of the SL TDD pattern sent by the first terminal, and ensure that SL resources can be effectively used. Of course, the second terminal may also receive complete information or incremental information of the SL TDD pattern sent by the first terminal through another interface or signaling, which is not limited in this embodiment.

Optionally, before step 201, the method further includes:

receiving first SL TDD pattern information sent by a first terminal through a SL MIB;

the step 201 includes:

receiving complete information of the SL TDD pattern sent by a first terminal through a PC5RRC signaling, and acquiring target information in the complete information of the SL TDD pattern;

the target information is information in the complete information of the SL TDD pattern, which is different from the information of the first SL TDD pattern.

Optionally, the target information includes at least one of:

the number of uplink time slots;

and the number of uplink symbols.

In this embodiment, the second terminal receives first SL TDD pattern information sent by the first terminal through the SL MIB, and can parse and obtain specific information parameters in the first SL TDD pattern information; when the second terminal receives the complete information of the SL TDD pattern sent by the first terminal through the PC5RRC signaling, the second terminal analyzes and acquires specific information parameters in the complete information of the SL TDD pattern, compares the specific information parameters with the first SL TDD pattern information, and replaces the second terminal with the target information for data transmission if the target information different from the SL TDD pattern information exists in the complete information of the SL TDD pattern.

For example, the number of uplink slots analyzed by the second terminal from the SL MIB sent by the first terminal is 52, and the number of uplink symbols is 4; if the number of uplink slots analyzed by the second terminal from the PC5RRC signaling sent by the first terminal is 55 and the number of uplink symbols is 6, the SL resources that the second terminal can use are: the number of uplink time slots is 55, the number of uplink symbols is 6, and the corresponding resource pool.

In this way, after receiving the SL TDD pattern information sent by the first terminal, the second terminal can update or replace the SL resource based on the target information, so that the second terminal can use the latest SL resource and ensure the utilization rate of the SL resource at the terminal.

According to the technical scheme provided by the embodiment of the invention, the second terminal can receive the complete information of the SL TDD pattern sent by the first terminal, or can receive the incremental information of the SL TDD pattern sent by the first terminal even under the condition that the configuration capacity of the SL TDD pattern is larger so as to supplement or replace the SL TDD pattern information. Therefore, the compression of the SL TDD pattern information caused by the large configuration capacity of the SL TDD pattern can be avoided, the second terminal can obtain all SL TDD pattern information, all SL resources can be used, and the utilization rate of the SL resources at the terminal is improved.

The embodiment of the invention also provides a terminal, which is a first terminal. Referring to fig. 3, the terminal 300 includes:

a sending module 301, configured to send complete information or incremental information of the secondary link time division multiplexing mode SL TDD pattern to the second terminal.

Optionally, the sending module 301 is further configured to:

and sending the complete information or the incremental information of the SL TDD pattern to the second terminal through PC5RRC signaling.

Optionally, the terminal 300 further includes an obtaining module, where the obtaining module is configured to implement at least one of the following:

receiving SL request information sent by the second terminal;

Optionally, the sending module 301 is configured to implement at least one of the following:

Optionally, the complete information of the SL TDD pattern includes at least one of the following:

subcarrier spacing SCS;

at least one time division multiplexing uplink downlink mode TDD UL DL pattern configuration.

Optionally, the TDD UL DL pattern configuration includes at least one of:

an uplink and downlink transmission period;

the number of downlink time slots;

the number of downlink symbols;

the number of uplink time slots;

and the number of uplink symbols.

Optionally, the sending module 301 is further configured to:

obtaining SL TDD pattern information in a secondary link master information block (SL MIB) sent to the second terminal, and replacing target information in the SL TDD pattern information;

and sending the replaced SL TDD pattern information to the second terminal.

Optionally, the target information includes at least one of:

the number of uplink time slots;

and the number of uplink symbols.

Optionally, the sending module 301 is further configured to:

Optionally, the incremental information is at least one of:

obtaining SL TDD pattern information after supplementing the first information existing in the first SL TDD pattern information;

information not included in the first SL TDD pattern information.

Optionally, the incremental information includes at least one of the following:

the number of TDD patterns;

TDD pattern numbering;

a TDD pattern period;

the number of uplink time slots;

the number of uplink symbols;

and starting position of uplink symbol.

It should be noted that the terminal 300 can implement each process of the information transmission method embodiment described in fig. 1, and can achieve the same technical effect, and for avoiding repetition, details are not described here again.

In this embodiment, the terminal 300 can send all SL TDD pattern information to another terminal, so as to avoid compression of the SL TDD pattern information due to a large configuration capacity of the SL TDD pattern, so that the another terminal can obtain all SL TDD pattern information, ensure that all SL resources can be used, and improve the utilization rate of the SL resources at the terminal.

The embodiment of the invention also provides a terminal, which is a second terminal. Referring to fig. 4, the terminal 400 includes:

a receiving module 401, configured to receive complete information or incremental information of a secondary link time division multiplexing mode SL TDD pattern sent by a first terminal.

Optionally, the receiving module 401 is further configured to:

receiving first SL TDD pattern information sent by a first terminal through a secondary link master information block (SL MIB);

receiving complete information of the SL TDD pattern sent by a first terminal through a PC5 Radio Resource Control (RRC) signaling, and acquiring target information in the complete information of the SL TDD pattern;

Optionally, the target information includes at least one of:

the number of uplink time slots;

and the number of uplink symbols.

It should be noted that the terminal 400 can implement each process of the information transmission method embodiment described in fig. 2, and can achieve the same technical effect, and for avoiding repetition, details are not described here again.

In this embodiment, the terminal 400 can receive the complete information or the incremental information of the SL TDD pattern sent by another terminal, which can also avoid compression of the SL TDD pattern information due to a large configuration capacity of the SL TDD pattern, ensure that the terminal 400 can obtain all the SL TDD pattern information, ensure that all the SL resources can be used, and improve the utilization rate of the SL resources at the terminal.

The embodiment of the invention also provides another terminal. As shown in fig. 5, terminal 500 includes, but is not limited to: a radio frequency unit 501, a network module 502, an audio output unit 503, an input unit 504, a sensor 505, a display unit 506, a user input unit 507, an interface unit 508, a memory 509, a processor 510, and a power supply 511. Those skilled in the art will appreciate that the terminal configuration shown in fig. 5 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.

In an optional implementation manner, the terminal 500 is a first terminal, wherein the radio frequency unit 501 is configured to:

Optionally, the radio frequency unit 501 is further configured to:

acquiring complete information or incremental information of the SL TDD pattern sent by network equipment; and/or receiving SL request information sent by the second terminal; and/or the presence of a gas in the gas,

processor 510 is configured to: and generating complete information or incremental information of the SL TDD pattern.

Optionally, the radio frequency unit 501 is further configured to implement at least one of the following:

subcarrier spacing SCS;

Optionally, the TDD UL DL pattern configuration includes at least one of:

an uplink and downlink transmission period;

the number of downlink time slots;

the number of downlink symbols;

the number of uplink time slots;

and the number of uplink symbols.

Optionally, the radio frequency unit 501 is further configured to:

and sending the replaced SL TDD pattern information to the second terminal.

Optionally, the target information includes at least one of:

the number of uplink time slots;

and the number of uplink symbols.

Optionally, the radio frequency unit 501 is further configured to:

Optionally, the incremental information is at least one of:

information not included in the first SL TDD pattern information.

Optionally, the incremental information includes at least one of the following:

the number of TDD patterns;

TDD pattern numbering;

a TDD pattern period;

the number of uplink time slots;

the number of uplink symbols;

and starting position of uplink symbol.

In this embodiment, the terminal 500 can implement all the technical features of the information transmission method embodiment described in fig. 1, and can achieve the same technical effects. The terminal 500 can send all SL TDD pattern information to another terminal, so as to avoid SL TDD pattern information compression caused by a large configuration capacity of the SL TDD pattern, so that the other terminal can obtain all SL TDD pattern information, ensure that all SL resources can be used, and improve the utilization rate of the SL resources at the terminal.

In another embodiment, the terminal 500 may be a second terminal, wherein the radio frequency unit 501 is configured to:

Optionally, the radio frequency unit 501 is further configured to:

Optionally, the target information includes at least one of:

the number of uplink time slots;

and the number of uplink symbols.

In this embodiment, the terminal 500 can implement all the technical features of the information transmission method embodiment described in fig. 2, and can achieve the same technical effect. The terminal 500 can receive the complete information or the incremental information of the SL TDD pattern sent by another terminal, so that the compression of the SL TDD pattern information due to a large configuration capacity of the SL TDD pattern can be avoided, the terminal 500 can obtain all the SL TDD pattern information, all SL resources can be used, and the utilization rate of the SL resources at the terminal is improved.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 501 may be used for receiving and sending signals during a message sending and receiving process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 510; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 501 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 501 can also communicate with a network and other devices through a wireless communication system.

The terminal 500 provides the user with wireless broadband internet access, such as helping the user send and receive e-mails, browse web pages, access streaming media, etc., through the network module 502.

The audio output unit 503 may convert audio data received by the radio frequency unit 501 or the network module 502 or stored in the memory 509 into an audio signal and output as sound. Also, the audio output unit 503 may also provide audio output related to a specific function performed by the terminal 500 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 503 includes a speaker, a buzzer, a receiver, and the like.

The input unit 504 is used to receive an audio or video signal. The input Unit 504 may include a Graphics Processing Unit (GPU) 5041 and a microphone 5042, and the Graphics processor 5041 processes image data of a still image or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 506. The image frames processed by the graphics processor 5041 may be stored in the memory 509 (or other computer-readable storage medium) or transmitted via the radio frequency unit 501 or the network module 502. The microphone 5042 may receive sounds and may be capable of processing such sounds 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 501 in case of the phone call mode.

The terminal 500 also includes at least one sensor 505, such as light sensors, motion sensors, and other sensors. Specifically, the light sensor includes an ambient light sensor that adjusts the brightness of the display panel 5051 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 5051 and/or a backlight when the terminal 500 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 sensors 505 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.

The display unit 506 is used to display information input by the user or information provided to the user. The Display unit 506 may include a Display panel 5051, and the Display panel 5051 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 507 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 500. Specifically, the user input unit 507 includes a touch panel 5071 and other input devices 5072. Touch panel 5071, also referred to as a touch screen, may collect touch operations by a user on or near it (e.g., operations by a user on or near touch panel 5071 using a finger, stylus, or any suitable object or attachment). The touch panel 5071 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, sends the touch point coordinates to the processor 510, and receives and executes commands sent by the processor 510. In addition, the touch panel 5071 may be implemented in various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 5071, the user input unit 507 may include other input devices 5072. In particular, other input devices 5072 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 5071 may be overlaid on the display panel 5051, and when the touch panel 5071 detects a touch operation thereon or thereabout, the touch panel is transmitted to the processor 510 to determine the type of touch event, and then the processor 510 provides a corresponding visual output on the display panel 5051 according to the type of touch event. Although in fig. 5, the touch panel 5071 and the display panel 5051 are implemented as two separate components to implement the input and output functions of the terminal 500, in some embodiments, the touch panel 5071 and the display panel 5051 may be integrated to implement the input and output functions of the terminal 500, and are not limited herein.

The interface unit 508 is an interface for connecting an external device to the terminal 500. 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 508 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the terminal 500 or may be used to transmit data between the terminal 500 and external devices.

The memory 509 may be used to store software programs as well as various data. The memory 509 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by 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. Further, the memory 509 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 510 is a control center of the terminal 500, connects various parts of the entire terminal 500 using various interfaces and lines, performs various functions of the terminal 500 and processes data by operating or executing software programs and/or modules stored in the memory 509 and calling data stored in the memory 509, thereby performing overall monitoring of the terminal 500. Processor 510 may include one or more processing units; preferably, the processor 510 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 510.

The terminal 500 may further include a power supply 511 (e.g., a battery) for supplying power to various components, and preferably, the power supply 511 may be logically connected to the processor 510 through a power management system, so that functions of managing charging, discharging, and power consumption are performed through the power management system.

In addition, the terminal 500 includes some functional modules that are not shown, and are not described in detail herein.

Optionally, an embodiment of the present invention further provides a terminal, including a processor, a memory, and a computer program stored in the memory and capable of running on the processor, where the computer program, when executed by the processor, implements each process of the information transmission method embodiment described in fig. 1, and can achieve the same technical effect; alternatively, when being executed by a processor, the computer program implements each process of the information transmission method embodiment described in fig. 2, and can achieve the same technical effect, and is not described herein again to avoid repetition.

An 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 described in fig. 1, and can achieve the same technical effect; alternatively, when being executed by a processor, the computer program implements each process of the information transmission method embodiment described in fig. 2, and can achieve the same technical effect, and is not described herein again to avoid repetition. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

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

Claims

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

2. The method of claim 1, wherein the sending the complete information or the incremental information of the SL TDD pattern to the second terminal comprises:

3. The method of claim 1, wherein before sending the complete information or the incremental information of the SL TDD pattern to the second terminal, at least one of the following is further included:

receiving SL request information sent by the second terminal;

4. The method of claim 1, wherein sending the full information or incremental information of the SL TDD pattern to the second terminal comprises at least one of:

5. The method of claim 1, wherein the complete information of the SL TDD pattern comprises at least one of:

subcarrier spacing SCS;

6. The method of claim 5, wherein the TDD UL DL pattern configuration comprises at least one of:

an uplink and downlink transmission period;

the number of downlink time slots;

the number of downlink symbols;

the number of uplink time slots;

and the number of uplink symbols.

7. The method of claim 1, wherein the sending the complete information or the incremental information of the SL TDD pattern to the second terminal comprises:

and sending the replaced SL TDD pattern information to the second terminal.

8. The method of claim 7, wherein the target information comprises at least one of:

the number of uplink time slots;

and the number of uplink symbols.

9. The method of claim 1, wherein the sending the complete information or the incremental information of the SL TDD pattern to the second terminal comprises:

acquiring first SL TDD pattern information sent to the second terminal through a secondary link master information block (SL MIB), generating incremental information according to the first SL TDD pattern information, and sending the incremental information to the second terminal.

10. The method of claim 9, wherein the incremental information is at least one of:

information not included in the first SL TDD pattern information.

11. The method according to claim 9 or 10, wherein the incremental information comprises at least one of:

the number of TDD patterns;

TDD pattern numbering;

a TDD pattern period;

the number of uplink time slots;

the number of uplink symbols;

and starting position of uplink symbol.

12. An information transmission method applied to a second terminal, the method comprising:

13. The method of claim 12, wherein before receiving the complete information or the incremental information of the SL TDD pattern sent by the first terminal, the method further comprises:

the receiving of the complete information or the incremental information of the SL TDD pattern sent by the first terminal includes:

14. The method of claim 13, wherein the target information comprises at least one of:

the number of uplink time slots;

and the number of uplink symbols.

15. A terminal, the terminal being a first terminal, the terminal comprising:

16. The terminal of claim 15, wherein the sending module is further configured to:

17. The terminal of claim 15, wherein the sending module is further configured to:

and sending the replaced SL TDD pattern information to the second terminal.

18. The terminal of claim 17, wherein the target information comprises at least one of:

the number of uplink time slots;

and the number of uplink symbols.

19. The terminal of claim 15, wherein the sending module is further configured to:

20. The terminal of claim 19, wherein the incremental information is at least one of:

information not included in the first SL TDD pattern information.

21. The terminal according to claim 19 or 20, wherein the incremental information comprises at least one of:

the number of TDD patterns;

TDD pattern numbering;

a TDD pattern period;

the number of uplink time slots;

the number of uplink symbols;

and starting position of uplink symbol.

22. A terminal, the terminal being a second terminal, the terminal comprising:

23. The terminal of claim 22, wherein the receiving module is further configured to:

24. The terminal of claim 23, wherein the target information comprises at least one of:

the number of uplink time slots;

and the number of uplink symbols.

25. A terminal comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the information transmission method according to any one of claims 1-11; alternatively, the computer program realizes the steps of the information transmission method according to any one of claims 12 to 14 when executed by the processor.

26. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the information transmission method according to any one of claims 1 to 11; alternatively, the computer program realizes the steps of the information transmission method according to any one of claims 12 to 14 when executed by the processor.