RU2774801C1 - Communication method in d2d system, terminal and network device - Google Patents

Abstract

FIELD: communication.

SUBSTANCE: invention relates to the field of communication in the D2D system. To achieve the effect, the following is provided: the terminal transmits the first indicative information via the first physical channel of the forward link, and the first indicative information is used to determine the time slot structure of the cell in which the first terminal is located.

EFFECT: preventing the downlink data transmission of a terminal in the cell from being disturbed when another terminal outside the cell uses the downlink data resource of the terminal in the cell to transmit data on the forward link.

16 cl, 10 dwg

Description

The field of technology to which the present invention relates

Embodiments of the present invention relate to the field of communication technologies, in particular to a communication method in a D2D system, a terminal, and a network device.

Background of the Invention

The communication mode in a device-to-device (D2D) communication system, such as a V2X (Vehicle-to-Everything system for communication between vehicles and other objects that are involved in traffic), uses a direct link (SL) data transmission technology. Unlike the mode in which data is received or transmitted through a network device within a standard wireless communication system, the D2D system uses a mode in which a terminal communicates with another terminal directly, and therefore, this system has higher spectrum efficiency and lower delay values during data transmission.

A Vehicle-to-Everything system based on a New Radio (NR) system or similar system (NR-V2X) may support the cell flexible timeslot format, i. one slot may contain an uplink time domain symbol and/or a downlink time domain symbol and/or a variable time domain symbol, and the number of symbols of each type in the time domain may be configurable. In this document, the variable time domain symbol indicates the direction of data transfer, but the direction of data transfer can be changed by configuration information. For example, in an NR system, a network device may configure the format of one timeslot by means of semi-static cell configuration signaling information (such as cell-specific radio resource control (RRC) signaling information) and, based on this information, may change the transmission direction of a variable symbol in one timeslot. via dynamic configuration signaling information (such as downlink control information (DCI)) or via semi-static terminal-specific configuration signaling information (such as user equipment (UE) specific RRC signaling information).

Brief summary of the present invention

Embodiments of the present invention provide a D2D communication method, a terminal, and a network device to prevent the downlink communication of a terminal in a cell from being disturbed by another terminal outside the cell transmitting data on a forward link using a downlink resource. terminal in a cell.

According to a first aspect of the present invention, there is provided a communication method in a D2D system, comprising: a first terminal transmitting first indicative information over a first forward link physical channel, the first indicative information being used to determine the timeslot format of the cell in which the first terminal resides.

According to the second aspect of the present invention, another method of communication in a D2D system is provided, comprising: transmitting, by a network device, configuration information to a first terminal, so that, based on the configuration information, the first terminal determines the first indicative information and transmits the first indicative information over the first physical channel of the forward link , wherein the first indicative information is used to determine the timeslot format of the cell in which the first terminal resides.

According to a third aspect of the present invention, there is provided a terminal capable of implementing the method according to the first aspect of the present invention described above, or various embodiments thereof.

In particular, the terminal includes functional modules capable of implementing the method according to the first aspect of the present invention described above, or various embodiments thereof.

According to a fourth aspect of the present invention, there is provided a network device capable of implementing the method according to the second aspect of the present invention described above, or various embodiments thereof.

In particular, the network device includes functional modules capable of implementing the method according to the second aspect of the present invention described above, or various embodiments thereof.

According to a fifth aspect of the present invention, there is provided a communication device including a processor and a memory. The memory is configured to store a computer program, and the processor is configured to call and run the computer program stored in the memory to implement the method according to any one of the first and second aspects of the present invention, or various embodiments thereof.

According to a sixth aspect of the present invention, there is provided an integrated circuit that is capable of implementing a method according to any of the first and second aspects of the present invention described above, or various embodiments thereof.

In particular, the chip includes: a processor configured to recall and run a computer program so as to enable a device with a chip to implement a method according to any aspect of the first and second aspects of the present invention described above, or various variations thereof. implementation.

According to a seventh aspect of the present invention, there is provided a computer-readable storage medium that is configured to store a computer program, the computer program causing the computer to implement a method according to any aspect of the first and second aspects of the present invention described above, or various embodiments thereof.

According to an eighth aspect of the present invention, there is provided a computer program product comprising computer program instructions, the computer program instructions causing the computer to implement a method according to any aspect of the first and second aspects of the present invention described above, or various embodiments thereof.

According to a ninth aspect of the present invention, there is provided a computer program, wherein the computer program, when run on a computer, causes that computer to execute a method according to any aspect of the first and second aspects of the present invention described above, or various embodiments thereof.

On the one hand, by applying the above-described technical solutions implemented in the described embodiment of the present invention, the first terminal transmits the first indicative information on the first physical channel of the forward link, the first indicative information is used to determine the timeslot format of the cell in which the first terminal is located. so that another terminal outside the cell in which the first terminal is located can learn the timeslot format configured by the first terminal, and so that the downlink resource of the first terminal in the cell is no longer used for data transmission on the forward link, preventing thereby disturbing the downlink data transmission of the terminal in the cell due to another terminal outside the cell performing forward link data transmission using the downlink resource of the terminal in the cell, which may significantly improve the reliability of data transmission by the terminal.

On the other hand, by applying the above-described technical solutions implemented in the described embodiment of the present invention, the network device transmits configuration information to the first terminal so that, based on this configuration information, the first terminal determines the first indicative information and transmits the first indicative information over the first physical forward link channel, wherein the first indicative information is used to determine the timeslot format of the cell in which the first terminal is located, so that another terminal outside the cell in which the first terminal is located can learn the timeslot format configured by the first terminal, and to thereafter, the downlink resource of the first terminal was no longer used for data transmission on the forward link, thereby preventing the downlink data transmission of the terminal in the cell from being disturbed by other other terminal outside the cell to transmit data on the forward link using the downlink resource of the terminal in the cell, which can significantly improve the reliability of the terminal's data transmission.

Brief description of the figures

In FIG. 1A schematically shows the architecture of a communication system according to one embodiment of the present invention.

In FIG. 1B schematically shows the architecture of a V2X system according to one embodiment of the present invention.

In FIG. 2A is a block diagram illustrating a communication method in a D2D system according to one embodiment of the present invention.

In FIG. 2B schematically shows one timeslot format configured with TDD-UL-DL-ConfigCommon configuration information according to the embodiment of the present invention as illustrated in FIG. 2A.

In FIG. 2C schematically shows another timeslot format configured with TDD-UL-DL-ConfigCommon configuration information according to the embodiment of the present invention illustrated in FIG. 2A.

In FIG. 3 is a block diagram of a terminal according to one embodiment of the present invention.

In FIG. 4 shows a block diagram of a network device according to one embodiment of the present invention.

In FIG. 5 shows a block diagram of a communication device according to one embodiment of the present invention.

In FIG. 6 shows a block diagram of a chip according to one embodiment of the present invention.

In FIG. 7 is a block diagram of a communication system according to one embodiment of the present invention.

Detailed disclosure of the present invention

The following describes the technical solutions implemented in the embodiments of the present invention, which are disclosed in connection with the drawings attached to the embodiments of the claimed invention. Obviously, the described embodiments represent only some, and not all, embodiments of the claimed invention. All other embodiments that can be obtained by a person skilled in the art based on the embodiments of the present invention without applying any creative effort, are included in the scope of legal protection of the claimed invention.

The technical solutions according to embodiments of the present invention are applicable to various communication systems such as Global System for Mobile Communications (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Public Packet Radio (GPRS), Long Term Evolution (LTE) system, Frequency Division Duplex (FDD) LTE system, Time Division Duplex (TDD) LTE system, Universal Mobile Telecommunications System (UMTS), global interoperability links for microwave access (WiMAX) or fifth generation (5G) system, etc.

In FIG. 1A shows a communication system 100 according to one embodiment of the present invention, which is illustrative. The communication system 100 may include a network device 110. The network device 110 may be a device that communicates with a terminal 120 (which may also be referred to as a communication terminal or tag). Network device 110 may provide radio coverage of a particular geographic area and communicate with terminals located within the coverage area. Optionally, network device 110 can be a base transceiver station (BTS) in a GSM or CDMA system, a NodeB (NB) in a WCDMA system or an evolved NodeB (eNB or eNodeB) in an LTE system, or a wireless controller in a Cloud Radio Access Network (CRAN). ); or the network device can be a mobile switching center, relay station, access point, vehicle-mounted device, wearable device, hub, switch, network bridge, router, network-side device in a 5G system, or network device in an emerging PLMN network ( public land mobile network), etc.

The communication system 100 further includes at least one terminal 120 located within the coverage area of the network device 110. As used herein, the term “terminal” means, among other things, a device capable of receiving/transmitting a communication signal over a wired circuit connection, such as via the public switched telephone network (PSTN), subscriber line (DSL), digital cable or direct cable connection, and/or via another data connection/data network, and/or via a wireless interface, such as a network cellular communication, a wireless local area network (WLAN), a digital television network (such as a DVB-H (European Digital Broadcasting Standard) network), a satellite communication network, and an AM/FM broadcast transmitter; and/or other terminal device; and/or device of the IoT system (“Internet of things”). A terminal configured to communicate via a wireless interface may be referred to as a "wireless communications terminal", "wireless terminal", or "mobile terminal". Examples of a mobile terminal include, but are not limited to, a satellite or cell phone; a personal communications system (PCS) terminal configured to combine the functions of a cellular radiotelephone with data processing, faxing, and communication capabilities; a personal digital assistant (PDA) configured to combine the functions of a radiotelephone, pager, Internet/Intranet access device, web browser, address book, calendar, and/or a GPS (Global Positioning System) receiver; and a conventional laptop and/or palmtop receiver or other electronic device including a radiotelephone transceiver. A terminal may refer to an access terminal, a user equipment (UE), a subscriber station, a subscriber station, a mobile station, a mobile platform, a remote station, a remote terminal, a mobile device, a user terminal, a terminal device, a wireless communication device, a user agent, or a user device. The access terminal may be a cell phone; wireless phone; SIP phone (phone using Session Establishment Protocol); wireless subscriber access station (WLL); pocket personal computer (PDA); handheld device with wireless functionality; a computing device or any other data processing device connected to the wireless modem; device installed on the vehicle; wearable device; a terminal in a 5G network or a terminal in an advanced advanced PLMN (Public Land Mobile Network).

Optionally, D2D (Device to Device) communication can be supported between terminals 120.

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

A mode in which one terminal communicates with another terminal directly is used in a D2D system such as a V2X system having higher spectrum efficiency and lower latency during data transmission. The terminals may be in hand-over communication via a network access device using the Uu interface, or may be in direct communication via the PC5 interface as shown in FIG. 1B.

In FIG. 1A shows an example with one network device and two terminals. Optionally, communication system 100 may include a plurality of network devices, and within the coverage area of each network device, there may be a different number of terminals, which is not limiting in embodiments of the present invention.

Optionally, communication system 100 may also include another network entity, such as a network controller, a mobility management node, or the like, which is not limited to embodiments of the present invention.

It should be understood that in the network/system according to embodiments of the present invention, a communication device may refer to a device having a communication function. Taking the communication system 100 shown in FIG. 1A, the communication device may include a network device 110 and terminals 120 having communication functions. Network device 110 and terminals 120 may be the specific devices disclosed above, which will not be repeated below. The communication device may also include another device within the communication system 100, such as another network entity such as a network controller, a mobility management node, or the like, but is not limited to embodiments of the present invention.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" in the context of this document denotes an associative relationship describing related objects, indicating that there are three possible relationship options. For example, the phrase "A and/or B" could indicate three possible situations: only element A is provided; elements A and B are simultaneously provided; and only the B element is provided. In addition, the symbol "/" occurring herein generally indicates that the related objects before and after this symbol are in an "or" relationship.

The 3rd Generation Partnership Project (3GPP) has established two transmission modes: Mode A and Mode B.

In Mode A, a transmission resource for a terminal is assigned by the network device, and based on the transmission resource allocated by the network device, the terminal transmits data on the forward link; wherein the network device may allocate a transmission resource transmitted once to the terminal or allocate a transmission resource transmitted semi-statically to the terminal.

In data transmission mode B, the terminal autonomously selects one transmission resource from a resource pool for data transmission on the forward link.

A New Radio-Device-to-Device (NR-D2D) system or a New Radio-Vehicle-to-Everything (NR-V2X) system within a New Radio (NR) system-based wireless communication system can support the flexible timeslot format in a cell, i.e. one slot may contain an uplink time domain symbol and/or a downlink time domain symbol and/or a variable time domain symbol, and the number of symbols of each type in the time domain may be configurable. In the context of this document, the variable time domain symbol represents an undefined direction of transmission, which however can be changed by configuration information. For example, in an NR system, a network device may configure the format of one timeslot by means of semi-static cell configuration signaling information (such as cell-specific radio resource control (RRC) signaling information) and, based on this information, may change the transmission direction of a variable symbol in one timeslot. via dynamic configuration signaling information (such as downlink control information (DCI)) or via semi-static terminal-specific configuration signaling information (such as user equipment (UE) specific RRC signaling information).

For example, in an NR system, the timeslot format configured by the TDD-UL-DL-ConfigCommon configuration information in the RRC signaling information may include the following parameters: reference subcarrier spacing information, which may also be referred to as "referenceSubcarrierSpacing", and which used to define the time domain boundary of the UL-DL template; template 1 and template 2, which are used to define the UL-DL template, template 2 being an optional configuration parameter; specifically, pattern 1 may include the following parameters: period information, which may also be referred to as "dl-UL-TransmissionPeriodicity", and which is used to determine the period of the UL-DL pattern; downlink slot number indicative information, which may also be referred to as "nrofDownlinkSlots" and which is used to determine that within each period, nrofDownlinkSlots that start at the period start position are fully downlink slots; indicative information on the number of downlink time domain symbols, which may also be referred to as "nrofDownlinkSymbols", and which is used to determine that the first nrofDownlinkSymbols of the time domain in one time slot after the fully downlink time slots nrofDownlinkSlots are downlink time domain symbols communications; indicative information about the number of uplink slots, which may also be referred to as "nrofUplinkSlots", and which is used to determine that within each period the last nrofUplinkSlots within the period are fully uplink slots; and indicative information about the number of uplink time domain symbols, which may also be referred to as "nrofUplinkSymbols", and which is used to determine that the last nrofUplinkSymbols of the time domain in one time slot before the fully uplink time slots nrofUplinkSlots are uplink time domain symbols. communication lines.

In the NR-V2X system, data transmission on the forward link may be on a common carrier or on its own carrier. The forward link transmission is carried out on a common carrier, i.e. the forward link and uplink data transmission use the same carrier, for example, both the forward link data transmission and the uplink data transmission use a 2 GHz carrier; data transmission over a straight line is carried out on its own carrier, i.e. the forward link and uplink data transmission use different carriers, or the forward link data transmission is carried out on an Intelligent Transportation System (ITS) carrier, for example, the forward link data transmission uses a 5.9 GHz carrier, and uplink data transmission uses a 2 GHz carrier. If the forward link data transmission is on a common carrier, then in order to avoid disturbing the downlink data transmission, the forward link data transmission may only be on an uplink time domain symbol and/or a variable time domain symbol, but not on the downlink time domain symbol.

However, since the other terminal outside the cell does not know the time slot format configured by the terminal in the cell, the other terminal may perform forward link data transmission using the downlink resource of the terminal in the cell, thereby perturbing the downlink. transmitting terminal data in a cell.

However, in the NR-V2X system, the time slot format in a cell can be configured by the configuration information in the RRC signaling information. In this case, if all the configuration information is sent to another terminal outside the cell, it may result in excessive consumption of signaling resources. Therefore, in order to reduce the consumption of signaling resources, it is urgent to provide a communication method in the D2D system without displaying all of the timeslot format information configured by the configuration information, but with displaying part of the timeslot format data, which would avoid the excitation effect on downlink data transmission. link of a terminal in a cell due to another terminal outside the cell performing data transmission on the forward link using the downlink resource of the terminal in the cell.

The network device according to the present invention may be a mobility management device such as an access and mobility management function (AMF) in a 5G core network, i. e. in the next generation core network (NGCN), or the Mobility Management Node (MME) in the 4G core network, i.e. in an Evolved Packet Core (EPC) network, or it may also be a policy control device such as a Vehicle-to-Everything System Control Function (V2X CF) or a Policy Control Function (PCF) or the like. in the V2X system, which is not specifically limited in the present embodiment of the present invention.

In the context of this document, the network structure supports both that the V2X CF is an independent network element and that the V2X CF function is transferred to the PCF, which is not specifically limited in the present embodiment of the present invention.

It should be noted that throughout the description of the present invention, slots are used as time blocks; and, optionally, subframes may also be used as time blocks. Here, the time slot format described may be a subframe structure. Accordingly, an uplink time slot may be an uplink subframe, a downlink time slot may be a downlink subframe, and a flexible time slot may be a flexible subframe.

In FIG. 2A is a flowchart illustrating a communication method 200 in a D2D system according to one embodiment of the present invention as shown in FIG. 2A.

In step 210, the first terminal transmits the first indicative information on the first forward link physical channel. In the context of this document, the first indicative information can be used to determine the timeslot format of the cell in which the first terminal resides.

Meanwhile, the time slot format of the cell where the first terminal is located, which is determined by the first indicative information, may include, among other things, at least one set of the following information: uplink time slot data and/or time domain symbol data uplink; downlink time slot data and/or downlink time domain symbol data; or flexible time slot data and/or variable time domain symbol data.

In the context of this document, uplink time slot data and/or uplink time domain symbol data is one set of information, downlink time slot data and/or downlink time domain symbol data is another set. information, and the flexible time slot data and/or the variable time domain symbol data is another set of information.

As used herein, the uplink timeslot data may include, but is not limited to, the number of uplink timeslots; the uplink time domain symbol data may include, but is not limited to, the number of uplink time domain symbols; the downlink timeslot data may include, but is not limited to, the number of downlink timeslots; the downlink time domain symbol data may include, but is not limited to, the number of downlink time domain symbols; the flex slot data may include, but is not limited to, the number of flex slots; and the variable time domain symbol data may include, among other things, the number of variable time domain symbols.

In one of the possible embodiments of the present invention, it is optionally provided that a V2X system can be applied, after which, at step 210, in particular, the first terminal can transmit the first indication information on the Direct Connected Physical Broadcast Channel (PSBCH).

In one possible embodiment of the present invention, it is optionally provided that the first indicative information can be further used to determine at least one of the following types of information: reference subcarrier spacing information or period information.

It should be understood that the technical solution implemented in this possible embodiment of the present invention is applicable to any of all possible embodiments presented below.

In one of the possible embodiments of the present invention, it is optionally provided that the first indicative information is used to determine the full time slot format of the cell in which the first terminal resides, i.e. to determine uplink time slot data and/or uplink time domain symbol data, downlink time slot data and/or downlink time domain symbol data and flexible time slot data and/or variable time domain symbol. Meanwhile, in step 210, the first indicative information may include at least two sets of the following indicative information: indicative information for determining uplink time slot data and/or uplink time domain symbol data; indicative information for determining downlink time slot data and/or downlink time domain symbol data; or indicative information for determining flexible time slot data and/or variable time domain symbol data.

In the context of this document, indicative information for determining uplink time slot data and/or uplink time domain symbol data is one set of indicative information, indicative information for determining downlink time slot data and/or symbol data the downlink time domain is another set of indicative information, and the indicative information for determining flexible time slot data and/or variable time domain symbol data is another set of indicative information.

The NR-V2X system provides that if the forward link data transmission can be on a common carrier, then in order to avoid affecting the downlink data transmission, the forward link data can only be transmitted on the uplink time domain symbol and/or variable time domain symbol, but they cannot be transmitted on the downlink time domain symbol.

For example, if the forward link data can only be transmitted on an uplink time domain symbol in a common carrier, then the first indicative information may include indicative information for determining uplink time slot data and/or uplink time domain symbol data. and may also further include indicative information for determining downlink time slot data and/or downlink time domain symbol data, and/or indicative information for determining flexible time slot data and/or variable data. time domain symbol. Thus, based on the first indicative information, the timeslot format of the cell in which the first terminal resides can then be determined.

In one possible embodiment of the present invention, it is optionally provided that the first indicative information is used to determine uplink time slot data and/or uplink symbol data. In this case, in step 210, the first indicative information may include indicative information for determining uplink time slot data and/or uplink time domain symbol data, displaying uplink time domain symbol data in one period, but it does not include indicative information for determining downlink time slot data and/or downlink time domain symbol data.

Optionally, this embodiment of the present invention is applicable to realizing data transmission on a forward link using an uplink time domain symbol.

It should be noted that the uplink time slot indicative information may specifically be one piece of indicative information for displaying the uplink time slot or two different pieces of indicative information, respectively, where one piece of indicative information is used to display the uplink time slot. link, and the other part of the indicative information is used to display the uplink time domain symbol, which is not specifically limited in this embodiment of the present invention.

Accordingly, the indicative information of the downlink time slot and the downlink time domain symbol may specifically be one piece of indicative information for mapping the downlink time slot and the downlink time domain symbol, or two different pieces of indicative information, respectively. , where one part of the indicative information is used to display the downlink time slot and the other part of the indicative information is used to display the downlink time domain symbol, which is not specifically limited in this embodiment of the present invention.

For example, if the forward link data can only be transmitted on an uplink time domain symbol in a common carrier, then the first indicative information may only include indicative information for determining uplink time slot data and/or uplink time domain symbol data. such as indicative information about the number of uplink time slots nrofUplinkSlots (9 bits) or indicative information about the number of uplink time domain symbols nrofUplinkSymbols (4 bits), but need not include indicative information for determining the time slot information downlink slot and/or downlink time domain symbol data such as downlink time slot number indicative information nrofDownlinkSlots (9 bits) or downlink time domain number indicative information nrofDownlinkSymbols ide (4 bits). Thus, the consumption of resources for signaling can be significantly reduced, i.e. for each mode (ie, pattern 1 or pattern 2), the signaling resource consumption can be reduced by 13 bits.

It should be noted that when referring to specific indicative information in the above and following examples, the original name of the indicative information in the RRC signaling information is used, or other new names may also be used, which is not specifically limited in this embodiment of the present invention.

Meanwhile, if only pattern 1 is configured, then the first indicative information displaying the format of the time slot of pattern 1 may occupy only 19 bits, i.e. three bits of referenceSubcarrierSpacing information about the reference subcarrier spacing, three bits of information dl-UL-TransmissionPeriodicity about the period, nine bits of indicative information about the number of uplink time slots nrofUplinkSlots, and four bits of indicative information about the number of symbols nrofUplinkSymbols of the uplink time domain. If both patterns 1 and 2 are configured at the same time, then the first indicative information displaying the time slot formats of pattern 1 and pattern 2 may require 35 bits.

At this time, another terminal outside the cell in which the first terminal is located may know, based on the first indicative information, the uplink time slot data and/or the uplink symbol data configured by the first terminal, after which it may directly define an uplink time domain symbol on which direct connection data can be transmitted. Since the first indicative information does not include indicative information for determining downlink time slot data and/or downlink time domain symbol data, the goal of saving signaling resource consumption can be achieved.

In one possible embodiment of the present invention, it is optionally provided that the first indicative information is used to determine downlink timeslot information and/or downlink symbol information. In this case, in step 210, the first indicative information may include indicative information for determining downlink time slot information and/or downlink time domain symbol information, displaying downlink time domain symbol data in one period, but does not include indicative information for determining uplink time slot data and/or uplink time domain symbol data.

Optionally, this embodiment is applicable to forward link data transmission using an uplink time domain symbol and/or a variable time domain symbol.

For example, if forward link transmission data can be transmitted on an uplink time domain symbol and a variable time domain symbol on a common carrier, then the first indicative information may include only indicative information for determining downlink time slot data and/or downlink time domain symbol data, such as indicative downlink time slot number nrofDownlinkSlots information (nine bits) or indicative downlink time domain symbol number nrofDownlinkSymbols information (four bits), but need not include indicative information for determining uplink time slot data and/or uplink time domain symbol data, such as indicative information about the number of uplink time slots nrofUplinkSlots (nine bits) or indicative information about the number of The number of uplink time domain symbols nrofUplinkSymbols (4 bits). Thus, the consumption of resources for signaling can be significantly reduced, i.e. for each mode (ie, pattern 1 or pattern 2), signaling resource consumption can be reduced by up to 13 bits, or at least four bits.

Meanwhile, if only pattern 1 is configured, then the first indicative information displaying the format of the time slot of pattern 1 may occupy only 19 bits, i.e. three bits of referenceSubcarrierSpacing information about the reference subcarrier spacing, three bits of information dl-UL-TransmissionPeriodicity about the period, nine bits of indicative information about the number of downlink time slots nrofDownlinkSlots, and four bits of indicative information about the number of symbols nrofDownlinkSymbols of the downlink time domain. If both patterns 1 and 2 are configured at the same time, then the first indicative information displaying the time slot formats of pattern 1 and pattern 2 may require 35 bits.

Meanwhile, another terminal outside the cell in which the first terminal is located can know, based on the first indicative information, downlink time slot data and/or downlink symbol data configured by the first terminal, after which it can further to know, based on other related information in the configuration information, such as period information or the like, that other time domain symbols, except for the downlink time domain symbol, are the uplink time domain symbol and the variable symbol time domain symbol, and then it can determine the uplink time domain symbol and the variable time domain symbol on which data can be transmitted on the forward link. Since the first indicative information does not include indicative information for determining uplink time slot data and/or uplink time domain symbol data, the goal of saving signaling resource consumption can be achieved.

In the two possible embodiments described above, it is provided that since the information displayed by the first indicative information is not the entire time slot format information that is configured by the network device for the first terminal, but is only a part of the time slot format information, it may a significant reduction in the consumption of resources for signaling should be ensured.

According to the present invention, it is not necessary to display all the time slot format information configured by the network device for the first terminal, but only a part of the time slot format information is displayed, which can reduce signaling resource consumption. In addition, based on the first indicative information, the terminal outside the cell can determine the uplink data transmission resource or the downlink data transmission resource in the cell. Therefore, the terminal outside the cell can transmit forward link data using the uplink data resource in the cell or avoid forward link data transmission using the downlink data resource in the cell, which allows to prevent the downlink data transmission from being disturbed by the terminal in the cell.

Optionally, in one possible embodiment of the present invention, the network device may also optionally send configuration information to the first terminal before performing step 210. Then, after the first terminal receives the configuration information transmitted by the network device, based on the configuration information, the first terminal can determine the first indicative information.

In one specific implementation process, based on the configuration information, the first terminal may then determine the first indicative information, the first indicative information may include at least one of the following types of information: reference subcarrier spacing information; period information; indicative information for determining uplink timeslot data; indicative information for determining uplink time domain symbol data; indicative information for determining downlink timeslot data; indicative information for determining downlink time domain symbol data; indicative information for determining the flexible time slot data; or indicative information for determining variable time domain symbol data.

The configuration information may include at least one of the following types of information: reference subcarrier spacing information; period information; indicative information about the number of uplink time slots; indicative information about the number of uplink time domain symbols; indicative information about the number of downlink timeslots; indicative information about the number of downlink time domain symbols; indicative information about the number of flexible time slots; or indicative information about the number of variable time domain symbols.

In particular, the value of the first indicative information may be included in the first set, and the value of the configuration information may be included in the second set or the third set. In this case, the third set may be a subset of the second set.

Thus, by limiting the range of values of the configuration information within the configuration information, i.e. the second set, in other words, by limiting the range of values to the first set or the third set, it can be possible to display the range of values of the first indicative information using a relatively small number of bits, which can significantly reduce signaling resource consumption.

In one particular implementation, it is provided that if the value of the configuration information belongs to the second set, then there are no restrictions on the values in the second set at this stage. However, the first set may be a subset of the second set, and therefore the first set is limited.

However, since the range of values of the first indicative information, i.e. the first set is limited, this leads to a narrowing of the range of values of the first set, which reduces the consumption of signaling resources.

For example, the value range of referenceSubcarrierSpacing reference subcarrier spacing information in the current TDD-UL-DL-ConfigCommon configuration information includes {15, 30, 60, 120, 240} kHz, and so on. When forward link data is transmitted on a common carrier, the range of this parameter can be limited, which reduces signaling resource consumption. For example, referenceSubcarrierSpacing could have a range of {15, 60} kHz, with referenceSubcarrierSpacing being 15 kHz for the first frequency band (FR1) and 60 kHz for the second frequency band (FR2), in which case only one bit; or, in another example, the range of referenceSubcarrierSpacing could be {60, 120} kHz, with the value of referenceSubcarrierSpacing being 60 kHz for FR1 and 120 kHz for FR2, in which case only one bit is needed to map referenceSubcarrierSpacing.

Alternatively, template 1 and template 2 are used as another example as part of the current TDD-UL-DL-ConfigCommon configuration information, with template 2 being an optional parameter. When data transmission on the forward link is on a common carrier, the limitation that only pattern 1 is configured and pattern 2 is no longer configured, reduces signaling resource consumption.

Alternatively, as another example, the range of values of the period information dl-UL-TransmissionPeriodicity in the current configuration information TDD-UL-DL-ConfigCommon includes the values of {0.5; 0.625; one; 1.25; 2; 2.5; 5; 10} ms etc. When forward link data is transmitted on a common carrier, the range of values can be limited, which reduces signaling resource consumption. For example, the range of values for the dl-UL-TransmissionPeriodicity parameter could be {0.5; 2} ms, in which case only one bit is needed to display it; or, in another example, the range of the dl-UL-TransmissionPeriodicity parameter may be {0.125; 1} ms, in which case only one bit is needed to display it.

By limiting the range of values of the period information dl-UL-TransmissionPeriodicity, the forward link data transmission delay can also be significantly reduced. Below, for example, the values of the dl-UL-TransmissionPeriodicity parameter are taken, respectively, equal to 10 ms and 2 ms, which limits the range of values of this parameter, and can also additionally and significantly reduce the delay in data transmission over the forward link.

In FIG. 2B schematically shows one timeslot format configured with TDD-UL-DL-ConfigCommon configuration information according to the embodiment of the present invention as illustrated in FIG. 2A. As shown in FIG. 2B, the dl-UL-TransmissionPeriodicity parameter is configured to be 10 ms and the referenceSubcarrierSpacing parameter is configured to be 15 kHz; those. one period may include 10 time slots, each time slot contains two fully downlink time slots and one fully uplink time slot, the first five time domain symbols of the third time slot are downlink time domain symbols, the last six time domain symbols of the last of the second time slot are uplink time domain symbols, and the remaining intermediate portions are fully variable time domain symbols. For the NR-V2X system, if direct connection data is transmitted on an uplink transmission resource, only the last two timeslots of eight slots can be used for forward link data transmission, and the first six timeslots cannot be used. for forward link data transmission, resulting in increased data transmission delay, making it difficult to meet the delay requirement of the NR-V2X system, such as the time domain requirement of 3-5 milliseconds (ms).

Therefore, if forward link data transmission is on a common carrier, the dl-UL-TransmissionPeriodicity information configured by the TDD-UL-DL-ConfigCommon configuration information must be limited. As shown in FIG. 2C, the dl-UL-TransmissionPeriodicity parameter is configured such that its value is 2 ms, and the referenceSubcarrierSpacing parameter is configured such that its value is 15 kHz, i.e. one period may include two time slots, where each time slot contains 0 all-down time slots (i.e., no all-down time slots), the last six time-domain symbols of the last time-slot are uplink time-domain symbols, and the rest of the intermediate sections are fully variable time domain symbols. For the NR-V2X system, it is provided that if direct connection data is transmitted on an uplink data transmission resource, an uplink time domain symbol in one time slot every two slots can be used for forward link data transmission, thereby preventing excessive transmission delay and the delay requirement (3-5 ms) for the NR-V2X system is satisfied.

Alternatively, as another example, the value range of the indicative information about the number of uplink time slots nrofUplinkSlots in the current TDD-UL-DL-ConfigCommon configuration information is from 0 to 320, and only nine bits are needed to display it. When forward link data is transmitted on a common carrier, the range of this parameter can be limited, which reduces signaling resource consumption. For example, the value range of the indicative information about the number of uplink time slots nrofUplinkSlots is from 0 to 7, and only three bits are needed to display it.

It should be understood that after limiting the value ranges of other parameters, the value range of this parameter is correspondingly narrowed, and therefore the consumption of signaling resources can also be reduced in the same way.

For example, referenceSubcarrierSpacing has a range of {15, 60} kHz, with 15 kHz being the default for FR1 and 60 kHz being the default for FR2. The range of values for the dl-UL-TransmissionPeriodicity parameter is {0.125; 1} ms. In the context of this document, a value of 1 ms for the dl-UL-TransmissionPeriodicity parameter corresponds to FR1, and if a referenceSubcarrierSpacing parameter value of 15 kHz is entered in FR1, i.e. one period includes only one time slot, then this parameter will be zero, i.e. this parameter is not required, and it is only necessary that the nrofUplinkSymbols parameter configure uplink time domain symbols in one time slot. The value of 0.125 ms for the dl-UL-TransmissionPeriodicity parameter corresponds to FR2, and if a value of 15 kHz is entered for the referenceSubcarrierSpacing parameter in FR2, i.e. one period includes only one time slot, then this parameter will be zero, i.e. this parameter is not required, and it is only necessary that the nrofUplinkSymbols parameter configure uplink time domain symbols in one time slot.

Alternatively, as another example, the value range of the referenceSubcarrierSpacing parameter is {15, 60} kHz, with 15 kHz being the default for FR1 and 60 kHz being the default for FR2. The range of values for the dl-UL-TransmissionPeriodicity parameter is {0.5; 2} ms. In the context of this document, a value of 2 ms for the dl-UL-TransmissionPeriodicity parameter corresponds to FR1, and if a referenceSubcarrierSpacing parameter value of 15 kHz is entered in FR1, i.e. one period includes only two time slots, then the nrofUplinkSlots parameter can take the value 0 or 1, i.e. only one bit is needed to display it. If both timeslots in this period can be configured as fully uplink timeslots, then the nrofUplinkSlots parameter can be configured to be 1 and the nrofUplinkSymbols parameter can be configured to be 14, i.e. two fully ascending time slots can be displayed. A value of 0.5 ms for the dl-UL-TransmissionPeriodicity parameter corresponds to FR2, and if a value of 60 kHz is entered for the referenceSubcarrierSpacing parameter in FR2, i.e. one period includes only two time slots, then the nrofUplinkSlots parameter can take the value 0 or 1, i.e. only one bit is needed to display it. If both timeslots in this period can be configured as fully uplink timeslots, then the nrofUplinkSlots parameter can be configured to be 1 and the nrofUplinkSymbols parameter can be configured to be 14, i.e. two fully ascending time slots can be displayed.

Alternatively, as another example, similar to the indicative uplink slot number nrofUplinkSlots information when the forward link data transmission is on a common carrier, the value range of the indicative downlink slot number nrofDownlinkSlots information in the current TDD configuration information -UL-DL-ConfigCommon can be limited, which reduces signaling resource consumption.

Alternatively, as yet another example, the indicative information for determining the flexible time slot data and/or the information for determining the variable time domain symbol data in the first indicative information may be determined based on the indicative information about the number of flexible timeslots and/or the indicative information. information on the number of variable time domain symbols in the configuration information, or may also be determined based on indicative information on the number of uplink time slots and/or indicative information on the number of uplink time domain symbols, and/or indicative information on the number of downlink time slots, and/or indicative information about the number of downlink time domain symbols in the configuration information, which is not specifically limited in this embodiment of the present invention.

Taking the first indicative information as an example, including all parameters of the TDD-UL-DL-ConfigCommon configuration information in the first indicative information transmitted on the PSBCH, the value range of the first indicative information will be limited, and the number of bits required to display each parameter , will be as follows: the value range of the referenceSubcarrierSpacing parameter can be {15, 60} kHz 1 bit; moreover, only template 1 is configured, and template 2 is not configured; the range of values for the dl-UL-TransmissionPeriodicity parameter will be {0;5; 2} ms - 1 bit; the range of values of the nrofUplinkSlots parameter will be 0.1-1 bits; the range of values of the nrofDownlinkSlots parameter will be 0.1 1 bits; the range of values of the nrofUplinkSymbols parameter will be 0-13 4 bits; and the range of nrofDownlinkSymbols will be 0-13-4 bits.

Therefore, indicative information of 12 bits must be transmitted on the PSBCH to display the timeslot format.

In another specific implementation process, the solution implemented in the previous implementation process is applicable to some of the possible embodiments described above, whereby signaling resource consumption can be further reduced based on the above implementation processes.

Taking the first indicative information including the uplink time domain symbol indicative information in the TDD-UL-DL-ConfigCommon in the first indicative information transmitted on the PSBCH as an example, the value range of the first indicative information will be limited, and the number of bits required to display each parameter will be as follows: the range of values of the referenceSubcarrierSpacing parameter can be {15, 60} kHz - 1 bit; moreover, only template 1 is configured, and template 2 is not configured; the optional range of values for the dl-UL-TransmissionPeriodicity parameter will include {0.5; 2} ms - 1 bit; the optional range of values for the nrofUplinkSlots parameter will be 0.1-1 bits; and the optional value range of the nrofUplinkSymbols parameter will be from 0 to 13-4 bits.

Therefore, indicative information of seven bits must be transmitted on the PSBCH to display the timeslot format.

In another particular implementation process, it is provided that if the value of the configuration information is included in the third set, then the values in the second set will be directly limited as the third set. Since the third set is already a subset of the second set, the first set may use a set that is the same as the third set, thereby achieving the goal of limiting the first set.

A detailed description of the specific restriction of the third set may refer to the accompanying content of the limitation of the range of values of the first indicative information in the above two implementation processes.

In another particular implementation process, it is provided that if the value of the configuration information is included in the second set, then there are no restrictions on the values in the first set. Thus, the first set may be a subset of the second set, in addition to determining the first indicative information using the technical solutions implemented in the above implementation processes, optionally, the first terminal may also determine other parameters in the first indicative information based on the relationship between reference subcarrier spacing information in the first indicative information; and reference subcarrier spacing information in the configuration information.

For example, the value of the referenceSubcarrierSpacing parameter in the first indicative information is 15 kHz, i.e. refSCS1=15 kHz, and the value of the referenceSubcarrierSpacing parameter in the configuration information is 30 kHz, i.e. the time slot length or time domain symbol length specified by refSCS1 is twice the timeslot length or time domain symbol length specified by refSCS2. Therefore, the first terminal can then determine the values of indicative information for determining uplink time slot data, indicative information for determining uplink time domain symbol data, indicative information for determining downlink time slot data, and indicative information for determining data. about the downlink time domain symbol in the first indicative information as half the values of the respective uplink time slot number indicative information, the uplink time domain symbol indicative information, the downlink time slot number indicative information, and the indicative information about the number of downlink time domain symbols in the configuration information.

It should be noted that in the technical solutions of the present invention, the value of the configuration information, or the value of the first indicative information, or the values in the third set is limited, indicating that the number of candidate values is also limited. The specific value may be the same as or different from the candidate parameter value of the current network configuration information. For example, the value range of the dl-UL-TransmissionPeriodicity parameter in the network configuration information includes the values {0.5; 0.625; one; 1.25; 2; 2.5; 5; 10} ms etc. When the range of this parameter is limited, the values of this parameter can be {0.5; 2} ms, i.e. match the values of the candidate parameter of the current parameter; and the values of this parameter can be {0.25; 2} ms, with 0.25 ms different from the value of the candidate parameter of the current parameter.

It should be noted that although all the above descriptions of the technical solutions of the present invention are illustrated by the example of the V2X system, the technical solutions according to the present invention are also applicable to another D2D system.

In the illustrated embodiment of the present invention, the first terminal transmits first indicative information on the first physical channel of the forward link, the first indicative information being used to determine at least one of the following types of information: timeslot format of the cell in which the first terminal resides; uplink time slot data and/or uplink time domain symbol data; and downlink time slot data and/or downlink time domain symbol data so that another terminal outside the cell in which the first terminal is located can learn about the time slot format configured by the first terminal, and more could not transmit data on the forward link using the data resource of the first terminal, which prevents the downlink data transmission of the terminal in the cell from being disturbed by another terminal outside the cell, transmitting data on the forward link with using the downlink data transmission resource of the terminal in the cell, which can significantly improve the reliability of data transmission by the terminal.

In addition, according to the technical solutions proposed by the present invention, since the data displayed by the first indicative information is part of the time slot format information, signaling resource consumption can be significantly reduced.

In FIG. 3 is a block diagram of a terminal 300 according to one of the embodiments of the present invention shown in FIG. 3. The present invention provides a terminal capable of implementing the method performed by the terminal within the embodiment of the present invention as illustrated in FIG. one.

In particular, the terminal 300 includes functional modules configured to implement the method performed by the terminal within the embodiment illustrated in FIG. 1. Terminal 300 may include an indication module 310 that may be configured to transmit first indicative information on a first forward link physical channel, the first indicative information being used to determine the timeslot format of the cell in which the terminal resides.

Meanwhile, the time slot format of the cell where the first terminal is located, which is determined by the first indicative information, may include, among other things, at least one set of the following information: uplink time slot data and/or time domain symbol data uplink; downlink time slot data and/or downlink time domain symbol data; or flexible time slot data and/or variable time domain symbol data.

In the context of this document, uplink time slot data and/or uplink time domain symbol data is one set of information, downlink time slot data and/or downlink time domain symbol data is another set. information, and the flexible time slot data and/or the variable time domain symbol data is another set of information.

In one of the possible embodiments of the present invention, it is optionally provided that the first indicative information is used to determine the full format of the time slot of the cell in which the first terminal is located, i.e. to determine uplink time slot data and/or uplink time domain symbol data, downlink time slot data and/or downlink time domain symbol data and flexible time slot data and/or variable time domain symbol. Wherein, the first indicative information may include at least two sets of the following indicative information: indicative information for determining uplink time slot data and/or uplink time domain symbol data; indicative information for determining downlink time slot data and/or downlink time domain symbol data; or indicative information for determining flexible time slot data and/or variable time domain symbol data.

In the context of this document, indicative information for determining uplink time slot data and/or uplink time domain symbol data is one set of indicative information, indicative information for determining downlink time slot data and/or symbol data the downlink time domain is another set of indicative information, and the indicative information for determining flexible time slot data and/or variable time domain symbol data is another set of indicative information.

The NR-V2X system provides that if forward link data transmission can be on a common carrier, then forward link data is transmitted only on an uplink time domain symbol and/or a variable symbol to avoid affecting downlink data transmission. time domain, but they cannot be transmitted on a downlink time domain symbol.

For example, if the forward link data can only be transmitted on an uplink time domain symbol in a common carrier, then the first indicative information may include indicative information for determining uplink time slot data and/or uplink time domain symbol data. and may further include indicative information for determining downlink time slot data and/or downlink time domain symbol data and/or indicative information for determining flexible time slot data and/or variable time slot data. areas. Thus, the timeslot format of the cell in which the first terminal resides can be determined based on the first indicative information.

In one possible embodiment of the present invention, it is optionally provided that the first indicative information is used to determine uplink time slot data and/or uplink symbol data. Thus, the first indicative information may include indicative information for determining uplink time slot data and/or uplink time domain symbol data, without including indicative information for determining downlink time slot data and/or or downlink time domain symbol data.

In one possible embodiment of the present invention, it is optionally provided that the first indicative information is used to determine downlink timeslot data and/or downlink symbol data. Thus, the first indicative information may include indicative information for determining downlink time slot data and/or downlink time domain symbol data, not including indicative information for determining uplink time slot data and/or or uplink time domain symbol data.

In one of the possible embodiments of the present invention, it is optionally provided that the first indicative information can be further used to determine at least one of the following types of information: reference subcarrier spacing information; or period information.

In one of the possible embodiments of the present invention, it is optionally provided that the display module 310 can be configured to additionally receive configuration information transmitted by the network device; and determining first indicative information based on the configuration information.

In one particular implementation process, the display module 310 may be configured to specifically determine the first indicative information based on the configuration information, wherein the first indicative information may include at least one of the following types of information: information about the reference subcarrier spacing; period information; indicative information for determining uplink timeslot data; indicative information for determining uplink time domain symbol data; indicative information for determining downlink timeslot data; indicative information for determining downlink time domain symbol data; indicative information for determining the flexible time slot data; or indicative information for determining variable time domain symbol data.

The configuration information may include at least one of the following types of information: reference subcarrier spacing information; period information; indicative information about the number of uplink time slots; indicative information about the number of uplink time domain symbols; indicative information about the number of downlink timeslots; indicative information about the number of downlink time domain symbols; indicative information about the number of flexible time slots; or indicative information about the number of variable time domain symbols.

In the context of this document, the value of the first indicative information is included in the first set; and the value of the configuration information is included in the second set or the third set; wherein the third set is a subset of the second set, and the first set is a subset of the second set.

In one of the possible embodiments of the present invention, it is optionally provided that the indication module 310 may be configured, in particular, to transmit the first indication information on a direct connection physical broadcast channel (PSBCH).

In FIG. 4 is a block diagram of a network device 400 according to one of the embodiments of the present invention shown in FIG. 4. The present invention provides a network device capable of implementing the method performed by the network device in the embodiment illustrated in FIG. one.

In particular, the network device 400 includes functional modules configured to implement the method performed by the network device in the embodiment of the present invention, which is illustrated in FIG. 1. The network device 400 may include a configuration module 410, which may be configured to transmit configuration information to a first terminal such that, based on the configuration information, the first terminal determines the first indicative information and transmits the first indicative information on the first forward link physical channel. communication, and the first indicative information is used to determine the format of the time slot of the cell in which the first terminal is located.

Meanwhile, the time slot format of the cell where the first terminal is located, which is determined by the first indicative information, may include, among other things, at least one set of the following information: uplink time slot data and/or time domain symbol data uplink; downlink time slot data and/or downlink time domain symbol data; or flexible time slot data and/or variable time domain symbol data.

In the context of this document, uplink time slot data and/or uplink time domain symbol data is one set of information, downlink time slot data and/or downlink time domain symbol data is another set. information, and the flexible time slot data and/or variable time domain symbol data is another set of information.

In one of the possible embodiments of the present invention, it is optionally provided that the first indicative information is used to determine the full format of the time slot of the cell in which the first terminal is located, i.e. to determine uplink time slot data and/or uplink time domain symbol data, downlink time slot data and/or downlink time domain symbol data and flexible time slot data and/or variable time domain symbol. Wherein, the first indicative information may include at least two sets of the following indicative information: indicative information for determining uplink time slot data and/or uplink time domain symbol data; indicative information for determining downlink time slot data and/or downlink time domain symbol data; or indicative information for determining flexible time slot data and/or variable time domain symbol data.

In the context of this document, indicative information for determining uplink time slot data and/or uplink time domain symbol data is one set of indicative information, indicative information for determining downlink time slot data and/or symbol data the downlink time domain is another set of indicative information, and the indicative information for determining flexible time slot data and/or variable time domain symbol data is another set of indicative information.

The NR-V2X system provides that if the forward link data transmission can be on a common carrier, then, in order to avoid affecting the downlink data transmission, the forward link data can only be transmitted on the uplink time domain symbol and/or variable time domain symbol, but they cannot be transmitted on the downlink time domain symbol.

For example, if the forward link data can only be transmitted on an uplink time domain symbol in a common carrier, then the first indicative information may include indicative information for determining uplink time slot data and/or uplink time domain symbol data. and may further include indicative information for determining downlink time slot data and/or downlink time domain symbol data and/or indicative information for determining flexible time slot data and/or variable time slot data. areas. Thus, the timeslot format of the cell in which the first terminal resides can be determined based on the first indicative information.

In one possible embodiment of the present invention, it is optionally provided that the first indicative information is used to determine uplink time slot data and/or uplink symbol data. Thus, the first indicative information may include indicative information for determining uplink time slot data and/or uplink time domain symbol data, without including indicative information for determining downlink time slot data and/or or downlink time domain symbol data.

In one possible embodiment of the present invention, it is optionally provided that the first indicative information is used to determine downlink timeslot data and/or downlink symbol data. Thus, the first indicative information may include indicative information for determining downlink time slot data and/or downlink time domain symbol data, not including indicative information for determining uplink time slot data and/or or uplink time domain symbol data.

In one of the possible embodiments of the present invention, it is optionally provided that the first indicative information can also be additionally used to determine at least one of the following types of information: reference subcarrier spacing information; or period information.

In one possible embodiment of the present invention, it is optionally provided that the first indicative information may specifically include the first indicative information. Thus, the first indicative information may be determined based on the configuration information, and the first indicative information may include at least one of the following types of information: reference subcarrier spacing information; period information; indicative information for determining uplink time slot data; indicative information for determining uplink time domain symbol data; indicative information for determining downlink timeslot data; indicative information for determining downlink time domain symbol data; indicative information for determining the flexible time slot data; or indicative information for determining variable time domain symbol data.

The configuration information may include at least one of the following types of information: reference subcarrier spacing information; period information; indicative information about the number of uplink time slots; indicative information about the number of uplink time domain symbols; indicative information about the number of downlink time slots; indicative information about the number of downlink time domain symbols; indicative information about the number of flexible time slots; or indicative information about the number of variable time domain symbols.

As used herein, the value of the first indicative information is included in the first set and the value of the configuration information is included in the second set or the third set, the third set being a subset of the second set and the first set being a subset of the second set.

In FIG. 5 shows a block diagram of a communication device 500 according to embodiments of the present invention. The communication device 500 shown in FIG. 5 includes a processor 510, where the processor 510 can recall and execute a computer program to implement methods according to embodiments of the present invention.

Optionally, as shown in FIG. 5, the communication device 500 may further include a memory 520, wherein the processor 510 may recall from the memory 520 and execute a computer program to implement methods according to embodiments of the present invention.

As used herein, memory 520 may be a stand-alone device independent of processor 510, or it may be integrated with processor 510.

Optionally, as shown in FIG. 5, communications device 500 may further include a transceiver 530, and transceiver 530 may be controlled by processor 510 to communicate with another device. In particular, the transceiver 530 may transmit information or data to another device or receive information or data transmitted by another device.

As used herein, transceiver 530 may include a transmitter and a receiver. The transceiver 530 may further include one or more antennas.

Optionally, communication device 500 may be a network device according to embodiments of the present invention, and communication device 500 may perform corresponding processes implemented by the network device in various ways according to embodiments of the present invention, which is not repeated hereinafter for brevity.

Optionally, communication device 500 may be, in particular, a terminal according to embodiments of the present invention, and communication device 500 may perform corresponding processes implemented by the terminal in various methods according to embodiments of the present invention, which for brevity is not repeated hereinafter. .

In FIG. 6 shows a block diagram of a chip 600 according to one embodiment of the present invention. Chip 600 shown in FIG. 6 includes a processor 610 that can recall and execute a computer program to implement methods according to embodiments of the present invention.

Optionally, as shown in FIG. 6, chip 600 may further include memory 620, wherein processor 610 may recall from memory 620 and execute a computer program to implement methods in accordance with embodiments of the present invention.

As used herein, memory 620 may be a stand-alone device independent of processor 610, or it may be integrated with processor 610.

Optionally, chip 600 may further include an input interface 630, where input interface 630 can be controlled by processor 610 to communicate with another device or chip. In particular, the processor 610 may receive information or data transmitted by another device or chip.

Optionally, chip 600 may further include an output interface 640, where output interface 640 may be controlled by processor 610 to communicate with another device or chip. In particular, the processor 610 may provide information or data to another device or chip.

Optionally, the chip is applicable to the network device according to the embodiments of the present invention, and the chip can perform the corresponding processes implemented by the network device in various ways according to the embodiments of the present invention, which for brevity is not repeated hereinafter.

Optionally, the chip is applicable to the terminal according to the embodiments of the present invention, and the chip can perform the corresponding processes implemented by the terminal in various ways according to the embodiments of the present invention, which is not repeated hereinafter for brevity.

It should be understood that a chip according to one embodiment of the present invention may also be referred to as a system-level chip, system chip, single-chip system, chip-based system, or otherwise.

In FIG. 7 shows a block diagram of a communication system 700 according to one embodiment of the present invention. As shown in FIG. 7, communication system 700 may include a terminal 710 and a network device 720.

In the context of this document, the terminal 710 may be configured to perform the corresponding functions implemented by the terminal in the framework of the methods described above, and the network device 720 may be configured to perform the corresponding functions implemented by the network device in the framework of the methods described above, which for brevity is further text is not repeated.

It should be understood that the processor in embodiments of the present invention may be an integrated circuit chip configured to process signals. In the course of its practical implementation, each of the described steps of the embodiments of the proposed method disclosed above may be performed by a hardware integrated logic circuit in a processor or by means of software instructions. The processor may be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an FPGA or other programmable logic device, a discrete logic element, or a transistorized logic element, or a discrete hardware component; various methods, steps, and flowcharts described in embodiments of the present invention may be performed or enforced. The general purpose processor may be a microprocessor, or any conventional processor or other similar device. The method steps disclosed in connection with embodiments of the present invention may be performed directly by a hardware decoding processor executing or implementing its functions, or using a combination of hardware and software modules in a decoding processor. The program modules may be located in a storage medium commonly used in the art, such as random access memory, flash memory, read only memory, programmable read only memory, electrically erasable program read only memory, a register, or the like. The storage medium is located in the memory and the processor reads the information stored in the memory and performs the steps of the described methods in cooperation with the processor hardware.

It should be understood that the memory in embodiments of the present invention may be non-volatile or volatile memory; or it may include both non-volatile and volatile memory. As used herein, non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory may be a random access memory (RAM) that serves as an external cache. By way of non-limiting example, random access memory (RAM) can be represented in a variety of forms, such as static RAM device (SRAM), dynamic RAM device (DRAM), synchronous dynamic RAM device (SDRAM) , Dual Speed SDRAM (DDR SDRAM), Enhanced Synchronous Dynamic RAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Resident Access Bus RAM (DR RAM). It should be noted that the memory for the systems and methods described herein is intended to include, among other things, these and any other memory units of a suitable type.

It should be understood that the memory described is by way of example only and is not limiting. For example, memory according to embodiments of the present invention may be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double speed synchronous dynamic random access memory (DDR SDRAM), advanced Synchronous Dynamic Random Access Memory (ESDRAM), Synchlink Dynamic Random Access Memory (SLDRAM), Direct Resident Access Bus Random Access Memory (DR RAM), or similar device. In other words, it is assumed that the memory in the embodiments of the present invention includes, among other things, these and other memory blocks of a suitable type.

One embodiment of the present invention further provides a computer readable storage medium for storing a computer program.

Optionally, the computer-readable storage medium is applicable to a network device according to the embodiments of the present invention, and the computer program enables the computer to perform the corresponding processes implemented by the network device in various ways according to the embodiments of the present invention, which, for brevity, is not repeated hereinafter.

Optionally, a computer-readable storage medium is applicable to a terminal according to embodiments of the present invention, and a computer program enables the computer to perform the corresponding processes implemented by the terminal in various methods according to embodiments of the present invention, which, for brevity, is not repeated hereinafter.

One embodiment of the present invention further provides a computer program product containing computer program instructions.

Optionally, the computer program product is applicable to the network device according to the embodiments of the present invention, and the computer program instructions enable the computer to perform the corresponding processes implemented by the network device in various methods according to the embodiments of the present invention, which, for brevity, is not repeated hereinafter.

Optionally, the computer program product is applicable to the terminal according to the embodiments of the present invention, and the computer program instructions enable the computer to perform the corresponding processes implemented by the terminal in various ways according to the embodiments of the present invention, which, for brevity, is not repeated hereinafter.

One embodiment of the present invention further provides a computer program.

Optionally, a computer program is applicable to a network device according to embodiments of the present invention. By running this computer program on the computer, the computer is enabled to perform the corresponding processes implemented by the network device in various ways according to the embodiments of the present invention, which will not be repeated hereinafter for brevity.

Optionally, a computer program is applicable to a terminal according to embodiments of the present invention. By running this computer program on the computer, the computer can perform the corresponding processes implemented by the terminal in various ways according to the embodiments of the present invention, which will not be repeated hereinafter for brevity.

One skilled in the art will appreciate that the exemplary modules and steps of the algorithm described in connection with the embodiments of the claimed invention disclosed herein may be implemented in electronic hardware or a combination of electronic hardware and computer software. Whether these functions are implemented in hardware or software depends on the particular application and design constraints of the technical solution. In each particular case, specialists in the art may use different methods to implement the described functions, but such an implementation should not be considered as going beyond the scope of the present invention.

Those skilled in the art will be fully aware that, for convenience and brevity, the specific workflows of the systems, devices, and modules described above may refer to the corresponding processes performed within the embodiments of the method of the present invention described above, and are therefore not re-described in this document.

It should be understood that in some embodiments of the present invention, the disclosed systems, devices, and methods may be implemented differently. For example, the device embodiments described are for illustrative purposes only. For example, the separation of modules is only a separation of logical functions, and other separation options can be implemented in practice. For example, multiple modules or components may be combined or integrated into another system; or some features may be dropped or not executed. In addition, the illustrated or described interconnection or direct connection or communication connection between them may be an indirect connection or communication connection that is implemented through certain interfaces, devices or modules in electrical, mechanical or other form.

Modules described as separate components may or may not be physically separated from each other; and components represented as modules may or may not be physical modules, i. e. they can be located in one place, or they can be distributed among many network modules. Some or all of the modules may be selected depending on the actual needs to achieve the goal of the technical solutions in the embodiments of the present invention.

In addition, various functional modules in various embodiments of the present invention may be integrated into one data processing module, or each of the modules may be a physically separate module, or two or more modules may be combined into a single module.

When a function is implemented as a software function module that is freely marketed or used as a standalone product, it may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the claimed invention - in whole, in part, or in that part of it that improves the prior art, can be implemented in the form of a software product that is stored in one data carrier and includes a number of commands that initiate the execution of a computing device (which can be used as a personal computer, server, network device or other device of a similar kind) of all or some of the steps of the method described in various embodiments of the present invention. Said storage medium includes: any media such as U-disk, external hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk, where program codes can be stored.

The embodiments of the present invention described above are only some specific examples of its implementation, and the scope of legal protection of the claimed invention is not limited to them. Any person skilled in the art can easily develop any changes or replacements within the technical scope disclosed in this document, which should be included in the scope of legal protection of the claimed invention. Therefore, the scope of legal protection of the present invention should be determined by the scope of legal protection of the claims.

Claims (77)

1. Method of communication in the D2D system, providing for: transmitting, by the first terminal, first indicative information on the first physical channel of the forward link, the first indicative information being used to determine the timeslot format of the cell in which the first terminal resides; wherein the timeslot format of the cell in which the first terminal is located includes: uplink time slot data and/or uplink time domain symbol data; wherein the first indicative information is used to determine uplink time slot data and/or uplink symbol data. 2. The method of claim 1, wherein the first indicative information is further used to determine period information. 3. The method according to claim 1 or 2, further comprising: receiving by the first terminal the configuration information transmitted by the network device; and determining, by the first terminal, first indicative information based on the configuration information. 4. The method of claim 3, wherein the first terminal determines the first indicative information based on the configuration information: determining, by the first terminal, the first indicative information based on the configuration information, wherein: the first indicative information contains at least one of the following types of information: period information; indicative information for determining uplink time slot data; indicative information for determining uplink time domain symbol data; and the configuration information contains at least one of the following types of information: reference subcarrier spacing information; period information; indicative information about the number of uplink time slots; indicative information about the number of uplink time domain symbols. 5. The method according to any of the preceding paragraphs. 1-4, wherein the transmission by the first terminal of the first indicative information on the first physical channel of the forward link comprises transmission by the first terminal of the first indicative information on the direct connection physical broadcast channel (PSBCH). 6. Method of communication in the D2D system, providing for: transmission by the network device of configuration information to the first terminal so that, based on the configuration information, the first terminal determines the first indicative information and transmits the first indicative information on the first physical channel of the direct link, and the first indicative information is used to determine the time slot format of the cell in which the first terminal; while the format of the time slot of the cell in which the first terminal is located contains: uplink time slot data and/or uplink time domain symbol data; wherein the first indicative information is used to determine uplink time slot data and/or uplink symbol data. 7. The method of claim 6, wherein the first indicative information is further used to determine period information. 8. The method according to claim 6 or 7, wherein the first indicative information is determined by the first terminal based on the configuration information, wherein: the first indicative information contains at least one of the following types of information: period information; indicative information for determining uplink time slot data; indicative information for determining uplink time domain symbol data; and the configuration information contains at least one of the following types of information: reference subcarrier spacing information; period information; indicative information about the number of uplink time slots; indicative information about the number of uplink time domain symbols. 9. Terminal in the D2D system, including: an indication module, configured to transmit the first indication information over the first forward link physical channel, the first indication information being used to determine the timeslot format of the cell in which the terminal resides; wherein the timeslot format of the cell in which the first terminal is located includes: uplink time slot data and/or uplink time domain symbol data; wherein the first indicative information is used to determine uplink time slot data and/or uplink symbol data. 10. The terminal of claim 9, wherein the first indicative information is further used to determine period information. 11. The terminal according to claim 9 or 10, in which the display module is configured with the additional ability to: receiving configuration information transmitted by the network device; and determining first indicative information based on the configuration information. 12. The terminal according to claim 11, in which the display module is made, in particular, with the ability to: determining first indicative information based on the configuration information; wherein: the first indicative information contains at least one of the following types of information: period information; indicative information for determining uplink time slot data; indicative information for determining uplink time domain symbol data; and the configuration information contains at least one of the following types of information: reference subcarrier spacing information; period information; indicative information about the number of uplink time slots; indicative information about the number of uplink time domain symbols. 13. The terminal according to any of the preceding paragraphs. 9-12, in which the display module is made, in particular, with the possibility transmitting the first indicative information on a Direct Connect Physical Broadcast Channel (PSBCH). 14. Network device in the D2D system, including: a configuration module configured to transmit the configuration information to the first terminal so that, based on the configuration information, the first terminal determines the first indicative information, the first indicative information is used to determine the timeslot format of the cell in which the first terminal resides; wherein the timeslot format of the cell in which the first terminal is located includes: uplink time slot data and/or uplink time domain symbol data; wherein the first indicative information is used to determine uplink time slot data and/or uplink symbol data. 15. The network device of claim 14, wherein the first indicative information is further used to determine period information. 16. The network device according to claim 14 or 15, wherein the first indicative information is determined by the first terminal based on the configuration information, wherein: the first indicative information contains at least one of the following types of information: period information; indicative information for determining uplink time slot data; indicative information for determining uplink time domain symbol data; and the configuration information contains at least one of the following types of information: reference subcarrier spacing information; period information; indicative information about the number of uplink time slots; indicative information about the number of uplink time domain symbols.

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