Information indication method and apparatus, terminal, and readable storage medium

Abstract

The application discloses an information indication method and device, a terminal and a readable storage medium, and belongs to the technical field of communication. The information indication method provided by the application comprises the following steps: a terminal transmits or receives first control information; and the first control information is borne on a first control channel.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of communication, and particularly relates to an information indication method and device, a terminal and a readable storage medium. BACKGROUND

[0002] In Long Term Evolution (LTE) sidelink, control information exists in the form of Sidelink Control Information (SCI) format 1, and SCI format 1 and a Physical Sidelink Shared Channel (PSSCH) are Frequency Division Multiplexing (FDM). In New Radio (NR) sidelink, control information exists in the form of SCI format 1 and SCI format 2, and SCI format 1 and SCI format 2 and a PSSCH are mainly Time Division Multiplexing (TDM). In this case, since control information needs to be decoded for resource selection in sidelink, but control information of LTE terminals and NR terminals is incompatible, LTE terminals and NR terminals cannot share the same resource pool for resource transmission, thereby causing low utilization of system resources. st SCI format 1 and SCI format 2 nd SCI format 1 and SCI format 2 In this case, since control information needs to be decoded for resource selection in sidelink, but control information of LTE terminals and NR terminals is incompatible, LTE terminals and NR terminals cannot share the same resource pool for resource transmission, thereby causing low utilization of system resources. SUMMARY

[0003] Embodiments of the application provide an information indication method and device, a terminal and a readable storage medium, which can solve the problem of low utilization of system resources.

[0004] In a first aspect, an information indication method is provided, comprising:

[0005] The terminal transmits or receives first control information.

[0006] The first control information is carried on a first control channel.

[0007] In a second aspect, an information indication device is provided, comprising:

[0008] The transceiver module is configured to transmit or receive first control information.

[0009] The first control information is carried on a first control channel.

[0010] In a third aspect, a terminal is provided, which comprises a processor, a memory, and a program or instructions stored in the memory and executable on the processor, and the program or instructions, when executed by the processor, implement the steps of the method according to the first aspect.

[0011] In a fourth aspect, a terminal is provided, which comprises a processor and a communication interface, wherein the communication interface is configured to send or receive first control information, and the first control information is carried on a first control channel.

[0012] In a fifth aspect, a readable storage medium is provided, which stores a program or instructions, and the program or instructions, when executed by a processor, implement the steps of the method according to the first aspect.

[0013] In a sixth aspect, a chip is provided, which comprises a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to execute a program or instructions to implement the method according to the first aspect.

[0014] In a seventh aspect, a computer program / program product is provided, which is stored in a non-transitory storage medium, and the program / program product is executed by at least one processor to implement the steps of the method according to the first aspect.

[0015] In the embodiments of the present application, the terminal can send or receive the first control information. Thus, in the case of coexistence in the same frequency, the terminal such as the NR terminal sends the first control information, and the first control information such as the SCI format 1 in the LTE sidelink can ensure that the LTE terminal reads the periodic resource reservation information of the NR terminal for resource selection, so that the system performance of the LTE terminal will not be greatly affected after the introduction of the NR terminal due to the inability to exclude the reserved resources of the NR terminal. Therefore, the LTE terminal and the NR terminal can share the same resource pool for resource transmission, thereby improving the utilization rate of system resources. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a block diagram of a wireless communication system to which the embodiments of the present application can be applied;

[0017] Figure 2 is a flowchart of an information indication method provided by the embodiments of the present application;

[0018] Figure 3 is a time slot diagram in the embodiments of the present application;

[0019] Figure 4 is a structural schematic diagram of an information indication apparatus provided by the embodiments of the present application;

[0020] Figure 5 is a structural schematic diagram of a terminal provided by an embodiment of the present application;

[0021] Figure 6 is another structural schematic diagram of a terminal provided by an embodiment of the present application. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0023] The terms "first", "second", and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second" are generally of a kind, and are not limited to the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally represents an "or" relationship between the front and rear associated objects.

[0024] It is worth noting that the technology described in the embodiments of the present application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used in the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, but these technologies can also be applied outside the NR system application, such as in a 6th Generation (6G) communication system. th

[0025] Figure 1 ​A block diagram of a wireless communication system to which embodiments of the present application can be applied is shown. The wireless communication system includes a terminal 11 and a network side device 12. The terminal 11 can also be referred to as a terminal device or a user terminal (User Equipment, UE). The terminal 11 can be a terminal side device such as a mobile phone, a tablet personal computer, a laptop computer, a personal digital assistant (PDA), a palmtop computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile Internet device (MID), an augmented reality (AR) / virtual reality (VR) device, a robot, a wearable device, a vehicle-mounted device (VUE), a pedestrian terminal (PUE), a smart home (a home device with wireless communication function, such as a refrigerator, a television, a washing machine, or furniture, etc.), and the like. The wearable device includes a smart watch, a smart bracelet, a smart earphone, smart glasses, smart jewelry (a smart bracelet, a smart necklace, a smart ring, a smart necklace, a smart ankle bracelet, a smart ankle chain, etc.), a smart wristband, smart clothing, a game console, and the like. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network side device 12 can be a base station or a core network. The base station can be referred to as a node B, an evolved node B, an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, a transmitting receiving point (TRP), or some other appropriate terminology in the art, as long as the same technical effects are achieved. The base station is not limited to a specific technical term.

[0026] It can be understood that, based on Figure 1 The scenarios to which the embodiments of the present application are applicable are sidelink transmission between terminals 11, including but not limited to NR systems, 6G communication systems, and the like.

[0027] In the embodiments of the present application, the sidelink can also be referred to as: secondary link, sidelink, edge link, etc. The sidelink transmission is a direct data transmission between terminals such as user equipment (User Equipment, UE) on the physical layer.

[0028] Optionally, the time unit in the embodiments of the present application can include but is not limited to frame, subframe, slot, symbol, etc. In the following embodiments, the time unit is mainly described based on slot in NR, but is not limited to slot.

[0029] The information indication method, device, terminal and readable storage medium provided by the embodiments of the present application will be described in detail in combination with the drawings and some embodiments and application scenarios.

[0030] Please refer to Figure 2 , Figure 2 is a flowchart of an information indication method provided by the embodiments of the present application. The method is executed by a terminal such as an NR terminal. Figure 2 As shown in the figure, the method includes the following steps:

[0031] Step 21: The terminal transmits or receives first control information.

[0032] In the embodiments, the first control information is carried on the first control channel.

[0033] It should be pointed out that the first control information is essentially sidelink control information (SCI), but it is different from the existing SCI. In order to avoid confusion with the existing SCI, the following related description is written as SA. The first control channel is essentially a physical sidelink control channel (Physical Sidelink Control Channel, PSCCH), but it is different from the existing PSCCH. In order to avoid confusion with the existing PSCCH, the following related description is written as PSCCH_SA.

[0034] Optionally, the first control information can adopt a first information format, and the first information format is a control information format under another communication system different from the communication system corresponding to the terminal, so that the terminal under the other communication system can successfully decode the first control information. For example, taking the terminal as an NR terminal, the first control information sent by the NR terminal can adopt the SCI format 1 in the LTE sidelink, so that the LTE terminal can successfully decode the first control information sent by the NR terminal, and obtain the resource reservation related information indicated by the first control information for resource selection, thereby not affecting the performance of the LTE terminal in the system, so that the LTE terminal and the NR terminal can share the same resource pool for resource transmission, and improve the utilization rate of system resources.

[0035] In the information indication method of this application embodiment, the terminal can send or receive first control information. Therefore, in the case of co-frequency coexistence, when the terminal, such as an NR terminal, sends the first control information, which, for example, uses SCI format 1 in LTE sidelink, it can ensure that the LTE terminal reads the periodic resource reservation information of the NR terminal for resource selection. This prevents the system performance of the LTE terminal from being significantly affected by the introduction of the NR terminal due to its inability to exclude the NR terminal's reserved resources. Therefore, the LTE terminal and the NR terminal can share the same resource pool for resource transmission, thereby improving the utilization rate of system resources.

[0036] In this embodiment of the application, the first control information may include at least one of the following:

[0037] i) First instruction information instruction field.

[0038] In this 1), the first indication information field is mainly used to distinguish terminals and / or indicate specific information about the terminal (such as an NR UE). For example, for an NR UE, since the reserved bits in the SCI format1 sent by an LTE UE are all set to 0, the first indication information field allows it to distinguish between NR UEs and LTE UEs through the information indicated by the first indication information, or directly distinguish between NR UEs and LTE UEs by the difference in control information format caused by the presence of the first indication information field. This can further enhance the first control information and help ensure the performance of NR UEs operating in the coexisting frequency band.

[0039] ii) Priority indication field; for example, used to indicate the priority of the currently transmitted data.

[0040] iii) Resource reservation indication field; for example, a periodic value used to indicate periodic reservation.

[0041] iv) Frequency domain resource indicator field; for example, used to indicate the frequency domain location of primary and retransmission resources.

[0042] v) Primary and retransmission interval indication field; for example, time domain offset used to indicate the time domain position of primary and retransmission resources.

[0043] ⅵ) Modulation and Coding Scheme (MCS) indicator field; for example, used to indicate the MCS level.

[0044] vii) Retransmission indication field; for example, used to indicate whether retransmission is allowed.

[0045] vii) Transmission format indication field; such as, for indicating whether the transmission format is with rate matching, Transport Block size (TBS) scaling, or with puncturing and no TBS-scaling, etc.

[0046] viii) Hybrid Automatic Repeat reQuest (HARQ) association information indication field; such as, for indicating that the reserved resources within multiple HARQ processes belong to the same Transport Block (TB), or SL process, MAC PDU, etc.

[0047] ix) Format indication field of the second control information; such as, for indicating the format of different second / third control information.

[0048] Wherein, the second / third control information can be understood as the enhanced information of the first control information. Taking the NR terminal as an example, in addition to sending the first control information, the NR terminal can also send the second / third control information. The first control information is mainly used for the LTE terminal to read the resource reservation information of the NR terminal for resource selection, in this case, other NR terminals can also decode the first control information of the NR terminal to obtain the resource reservation information. The second / third control information is mainly used for other NR terminals to read the resource reservation information of the NR terminal for resource selection and data reception, HARQ feedback, etc.

[0049] xi) Physical Sidelink Feedback Channel (PSFCH) overhead indication field; such as, for indicating the PSFCH overhead related information.

[0050] xii) Beta_offset indication field; such as, for indicating the related information of determining the second / third control information carried on the first shared channel (such as PSSCH_SA), such as mapping mode, number of modulation symbols, etc.

[0051] Optionally, the first indication information indication field can be used to indicate at least one of the following:

[0052] a) Device type.

[0053] In this section (a), either the sending terminal type or the receiving terminal type can be indicated. For example, the sending terminal can be an LTE UE or an NR UE. If 1 bit information is used to indicate the sending terminal type, '0' can represent an LTE UE and '1' can represent an NR UE; or, '0' can represent an NR UE and '1' can represent an LTE UE.

[0054] b) The protocol version used by the terminal.

[0055] c) Whether there is a next-level control information, and / or the format of the next-level control information.

[0056] d) Resource allocation mode. For example, when the NR resource allocation mode is defined as mode5 under coexisting frequency bands, it indicates whether the current allocation mode is mode5 or NR R16 resource allocation mode.

[0057] e) Resource selection mode.

[0058] f) Resource detection mode.

[0059] g) The resource reservation method is one of the following: periodic reservation, non-periodic reservation, periodic reservation and non-periodic reservation.

[0060] h) is set to one bit of '1'.

[0061] In some embodiments, taking an NR UE as an example, the content indicated by SA is the content of the indication fields in ii) to viii) above. This indication content is the same as the indication content of the control information sent by the LTE UE, and is backward compatible with the LTE UE.

[0062] In some embodiments, taking an NR UE as an example, the content indicated by SA is the content of the indication fields in i) to viii) above. This indication content is based on the indication content of the control information sent by the LTE UE, with the addition of the content indicated by the first indication information, so as to enable the NR UE to distinguish between the LTE UE and the NR UE, and to obtain other relevant information, while maintaining backward compatibility with the LTE UE.

[0063] In some embodiments, taking the NR UE as an example, the content indicated by SA is the content of the indication fields in i) to viii) above, plus the HARQ association information indication field. In this case, the NR UE can use the decoded control information SA to perform sensing.

[0064] In some embodiments, taking an NR UE as an example, the content indicated by SA is the content of the indication fields in i) to viii) above, as well as the second control information format, PSFCH overhead, and / or Beta_offset information. In this case, SA can replace the function of SCI format 1-A in the original NR UE. Therefore, SCI format 1-A does not need to be sent anymore, or part of SCI format 1-A can be combined with SCI format 2. Based on this, if the new second control information is sent on the second control channel (such as PSCCH_SA-1), the PSFCH overhead and Beta_offset information do not need to be sent.

[0065] In this embodiment of the application, the setting of the indication field in the first control information can satisfy at least one of the following:

[0066] 1) Based on the content indicated by the first information, set the first indication information indication field;

[0067] 2) Based on the HARQ association information in the resource selection process, set the HARQ association information indicator field;

[0068] 3) Set the PSFCH overhead indication field according to the PSFCH cycle indicated by the first information;

[0069] 4) Set the format indicator field of the second control information according to the format of the second control information;

[0070] 5) Set the priority indication field according to the highest priority among the corresponding transport blocks (TBs) indicated by the first information;

[0071] 6) Set the MCS indication field according to the content indicated by the first information;

[0072] 7) Set the initial retransmission interval indication field, frequency domain resource indication field and / or retransmission indication field so that the time and frequency domain resources of PSSCH determined by the resource selection process are consistent with the PSSCH resource allocation indicated by the Configured Grant (CG).

[0073] 8) Set the reserved period indication field according to the reserved period information indicated by the first information.

[0074] Optionally, the first information in 1) to 8) above can include at least one of the following: high layer indication, downlink control information (DCI), SCI, etc. In this way, taking the NR terminal as an example, by setting the first control information in the above manner, the LTE terminal can be identified, and the NR terminal can be enhanced by adding an indication field in the reserved bits.

[0075] Optionally, when the first control information is carried in the first control channel, the first control channel can satisfy at least one of the following:

[0076] I) The encoding mode is turbo encoding.

[0077] II) The scrambling sequence generator performs initialization at the start of each slot.

[0078] For example, the scrambling sequence generator can be initialized using C init = 510.

[0079] III) The modulation mode is quadrature phase shift keying (QPSK).

[0080] IV) The layer mapping multiplexes the layer mapping rule of a single antenna port on a specific channel.

[0081] For the layer mapping of the first control channel, the layer mapping rule of a single antenna port on a specific channel can be defined as a same layer mapping rule, or can be directly reused / multiplexed, and is not limited in this regard.

[0082] Taking the NR terminal as an example, the layer mapping of PSCCH_SA can multiplex the mapping rule of a single antenna port on the LTE uplink physical shared channel (PUSCH), that is, the layer mapping of PSCCH_SA is mapped according to the mapping rule of a single antenna port on the LTE PUSCH. For the LTE PUSCH, the modulation symbol of each codeword is mapped to 1 or 2 layers. The modulation symbol on the codeword q is mapped to layer x The layer mapping is x(i) = [x (0) (i)…x (v -1) (i)] T , where v is the number of layers, and x(i) is the number of modulation symbols of each layer. For the case of transmission on only one antenna port, the number of layers is 1, that is, v = 1, and the layer mapping rule is defined as: x (0) (i) = d (0) (i); where

[0083] V) Transform precoding The transform precoding rule of a specific channel is multiplexed.

[0084] For the transform precoding rule of the first control channel multiplexing the transform precoding rule of a specific channel, it can be defined as a same transform precoding rule, or directly reuse / multiplex the transform precoding rule, and no limitation is made.

[0085] Taking the NR terminal as an example, the Transform precoding of PSCCH_SA can multiplex the Transform precoding rule of LTE PUSCH, that is, the Transform precoding of PSCCH_SA is performed according to the Transform precoding rule of LTE PUSCH. For LTE PUSCH, for layers λ = 0, 1,..., υ - 1, the modulation symbol block is divided into subsets, each of which corresponds to an SC-FDMA symbol. The rule of Transform precoding is to finally generate a symbol block according to the following formula one: wherein the variable represents the bandwidth of PUSCH, and the corresponding unit is RB, is the RB block size, expressed in the number of subcarriers, and satisfies α2, α3, α5 are non-negative integers:

[0086]

[0087]

[0088]

[0089] Further, the Transform precoding of PSCCH_SA multiplexing the Transform precoding rule of LTE PUSCH can use the number of RBs configured to PSCCH_SA on the frequency band and the number of subcarriers instead of the number of RBs configured to PUSCH on the frequency band and the number of subcarriers

[0090] VI) Precoding The precoding rule of a specific channel is multiplexed, and the number of layers is 1.

[0091] The precoding rule of the first control channel can be defined as a same precoding rule or directly reuse / multiplex the precoding rule, and no limitation is made.

[0092] For example, the NR terminal, the precoding of the PSCCH_SA can multiplex the precoding rule of the LTE PUSCH, that is, the precoding of the PSCCH_SA is performed according to the precoding rule of the LTE PUSCH, and the number of layers is 1. In some embodiments, the input of the precoder is a vector [y (0) (i)... y (υ-1) (i)] T wherein The corresponding output vector is [z (0) (i)... z (P-1) (i)] T wherein For the case of transmission only on one antenna port, the precoding is defined as: z (0) (i) = y (0) (i); wherein

[0093] VII) mapped to the physical resource according to a preset rule.

[0094] For example, when the PSCCH_SA is mapped to the physical resource, the precoded symbol can be first multiplied by a power adjustment factor to meet the transmission power requirement, and then mapped to the time-frequency domain resource in the order of ascending frequency domain and then ascending time domain.

[0095] Optionally, when the terminal transmits the first control information, the terminal transmitting the first control information can also be described as the terminal transmitting the first control channel, which can satisfy at least one of the following:

[0096] a) The first control information indicates at least one of the following: priority of transmitted data, MCS level, resource reservation information, etc. For example, the NR terminal can indicate the priority of transmitted data, MCS level, and resource reservation information by transmitting the control information SA. Since the same format and channel as the LTE SA are used, the LTE terminal can read the relevant information indicated by the SA, thereby solving the problem of coexistence of the LTE terminal and the NR terminal due to incompatible control information.

[0097] b) The first control information is transmitted in a time unit of the PSSCH corresponding to the first control channel, and occupies two physical resource blocks (PRBs). For example, the time unit can be every slot, every subframe, etc.

[0098] c) If the terminal receives the DCI scheduling at time unit n, the first control information is transmitted at the first PSSCH time unit after no earlier than n+Q; wherein Q is related to the data packet processing time or the DCI processing time. It can be understood that n is only a placeholder for a specific time, which is used to make the corresponding description clearer, and does not have a specific meaning.

[0099] d) If the terminal receives the DCI scheduling at PSSCH time unit t T The first control information is initially transmitted, and the information (such as Time gap between initial transmission and retransmission) indicated in the configured sidelink grant indicates that the time interval between the initial transmission and the retransmission of the first control information is not 0, then the first control information is retransmitted at PSSCH time unit t T+gap ; wherein t T+gap is determined by the information (such as Time gap between initial transmission and retransmission) indicated in the configured sidelink grant. T The time interval between t T and t T+gap is indicated by the information (such as Frequency resource location of the initial transmission and retransmission) indicated in the configured grant CG. It can be understood that t T and t T+gap are only placeholders for specific times, which are used to make the corresponding description clearer, and do not have a specific meaning.

[0100] Optionally, when the terminal determines the RB pool of the first control channel, any of the following can be met:

[0101] 1) If the resource pool configures the terminal to transmit the first control channel and the corresponding PSSCH on adjacent RBs in a time unit, the resource of the first control channel is two consecutive PRBs, and the index of the two consecutive PRBs is related to the index of the starting subchannel and the size of the subchannel.

[0102] For example, the index of the frequency domain PRB of the first control channel resource m can be determined by the following formula: n PRB = n subCHRBstart +m*n subCHsize +j; wherein nPRB is the index of PRB, j = 0 or 1, n subCHRBstart and n subCHsize is the RB sequence number and size of the starting subchannel subchannel indicated by the upper layer parameter.

[0103] 2) If the terminal transmits the first control channel and the corresponding PSSCH on the RBs which are not adjacent in time units according to the resource pool configuration, the resource of the first control channel is two consecutive PRBs, and the indexes of the two consecutive PRBs are related to the index of the starting RB of the first control channel pool.

[0104] For example, the index of the frequency domain PRB of the first control channel resource m can be determined by the following formula: n PRB = n PSCCHstart + 2*m + j; where n PRB is the index of PRB, j = 0 or 1, n PSCCHstart is the index of the starting PRB of the PSCCH_SA pool indicated by the upper layer parameter.

[0105] Optionally, when the terminal receives the first control information, at least one of the following can be met:

[0106] 1) When the terminal detects the first control information on the first control channel, the corresponding first control information is decoded according to the resource configuration of the first control channel;

[0107] 2) The terminal does not detect more than one first control information on the first control channel at each first control channel candidate resource position; that is, the terminal is not required to detect more than one PSCCH_SA at each PSCCH_SA candidate resource position.

[0108] 3) The terminal does not assume that the reserved bit in the first control information has any one value before decoding the first control information on the first control channel; that is, the terminal should not assume that the reserved bit has any one value before decoding the SA.

[0109] In this way, taking the NR terminal as an example, with the above requirements for receiving the SA, the NR terminal can also obtain the resource reservation and other related information of the LTE terminal by decoding the SA, so as to avoid the LTE terminal reserved resources when selecting resources, thereby being compatible with the LTE terminal and realizing coexistence in the same frequency.

[0110] Optionally, the subcarrier spacing of the terminal when transmitting and receiving information adopts a specific frequency, such as 15KHz, which is the same as the subcarrier spacing of the LTE system. Thus, the LTE terminal can successfully decode the control information SA sent by the NR terminal.

[0111] Optionally, the subchannel of the resource pool in which the terminal is located can meet at least one of the following:

[0112] i. The subchannel size in the resource pool of the terminal is predefined by a protocol, preconfigured by a network, and / or configured by a network terminal, and is {n5, n6, n10, n15, n20, n25, n50, n75, n100}.

[0113] ii. The subchannel size in the resource pool of the terminal is predefined by a protocol, preconfigured by a network, and / or configured by a network terminal, and is {n4, n5, n6, n8, n9, n10, n12, n15, n16, n18, n20, n30, n48, n72, n96}.

[0114] In the above i and ii, the subchannel size can be selected as the number of PRBs. For example, n5 represents that the number of PRBs is 5; n18 represents that the number of PRBs is 18; and so on.

[0115] In some embodiments, when the PSCCH_SA is adjacent to the PSSCH frequency domain, the above i is adopted.

[0116] In some embodiments, when the PSCCH_SA is not adjacent to the PSSCH frequency domain, the above ii is adopted.

[0117] In this way, the subchannel size and the number of configurations of the NR sidelink can be configured by using the LTE sidelink configuration, so that the indication of the corresponding control information is consistent.

[0118] Optionally, in the embodiments of the present application, the terminal can determine a first parameter, and the first parameter is a parameter determined based on at least one of the following: protocol predefinition, network preconfiguration, terminal preconfiguration, network configuration, and terminal configuration. The first parameter is used to indicate whether the control information of the terminal is separated from the data information in the frequency domain, so that the terminal can accurately select the resource of the control information. The first parameter is, for example, adjacencyPSCCH-PSSCH.

[0119] The present application will be described in detail below with reference to specific examples.

[0120] Example 1

[0121] As Figure 3As shown, the NR UE can send a first control information SA to be compatible with the resource selection rule of LTE sidelink, so that more reserved resources caused by the joining of NR terminals can be identified by LTE UEs. From the perspective of LTE UEs, there are only more UEs performing resource reservation, and the system is more congested. In addition, in order to be consistent with LTE sidelink, the position of the SA can also be in the corresponding position in the SA pool, that is, the frequency domain position is not adjacent to PSSCH. For NR UEs, the UE type indication can be carried in the SA, so that the NR UE can identify whether the current UE belongs to the NR UE, so that the NR UE can make further enhancements.

[0122] Example 2

[0123] In order to enable LTE UEs to obtain the resource reservation information of NR UEs by decoding the control information SA carried by NR UEs, the PSCCH_SA carrying the SA needs to be consistent with the PSCCH in LTE. Therefore, the encoding method, scrambling, modulation, layer mapping, precoding, etc. of PSCCH_SA need to reuse / multiplex the related rules of LTE sidelink PSCCH. Similarly, the control information SA sent by the NR UE also needs to be the same as the indication domain in the control information sent by the LTE UE in the indication domain, so as to ensure that the LTE UE can correctly decode the SA and obtain the indication information in the SA.

[0124] Since there are reserved bits in the SA indication domain, the NR UE can use the reserved bits to send enhanced information. For example, a first indication information is added to indicate whether the current sending UE or receiving UE is an NR UE, or further, to indicate the Release version / resource allocation method of the current NR UE.

[0125] Example 3

[0126] Since the reserved bits of the control information in LTE sidelink can have at least 6, and more when the number of subchannels in the resource pool configuration is small, the reserved bits can be considered to be used for further enhancement of NR UEs.

[0127] A format 1 of the SA sent by an NR UE can be as follows:

[0128] ⅰ) Priority indication domain; for example, used to indicate the priority of the currently sent data.

[0129] ⅱ) Resource reservation indication domain; for example, used to indicate the periodic reservation period value.

[0130] ⅲ) Frequency domain resource indication domain; for example, used to indicate the frequency domain position of the initial transmission and retransmission resources.

[0131] ⅳ) Initial transmission retransmission interval indication field; such as, for indicating time domain offset of time domain location of initial transmission and retransmission resource, etc.

[0132] ⅴ) MCS indication field; such as, for indicating MCS level.

[0133] ⅵ) Retransmission indication field; such as, for indicating whether retransmission is allowed.

[0134] ⅶ) Transmission format indication field; such as, for indicating whether transmission format adopts rate matching, TBS scaling, or puncturing and no TBS-scaling, etc.

[0135] ⅷ) First indication information indication field.

[0136] ⅸ) Reserved bit.

[0137] This SA is equivalent to the format and indication field of reusing LTE SCI format 1, and the control information SA is only used for compatible LTE UE, and other functions are undertaken by other control information. In addition, an indication field is added in the reserved bit to indicate the first indication information, that is, the first indication information indication field is added, so that the terminal type can be judged by the NR terminal, and further enhancement is made.

[0138] Example 4

[0139] The format 2 of the SA sent by an NR UE can be as follows:

[0140] ⅰ) Priority indication field; such as, for indicating the priority of the currently transmitted data.

[0141] ⅱ) Resource reservation indication field; such as, for indicating the periodic reservation period value.

[0142] ⅲ) Frequency domain resource indication field; such as, for indicating the frequency domain location of initial transmission and retransmission resource.

[0143] ⅳ) Initial transmission retransmission interval indication field; such as, for indicating time domain offset of time domain location of initial transmission and retransmission resource, etc.

[0144] ⅴ) MCS indication field; such as, for indicating MCS level.

[0145] ⅵ) Retransmission indication field; such as, for indicating whether retransmission is allowed.

[0146] Ⅵ) Transmission format indication field; such as, for indicating whether transmission format adopts rate matching, TBS scaling, or puncturing and no TBS-scaling, etc.

[0147] i) first indication information indication field.

[0148] viii) HARQ association information indication field.

[0149] This SA is equivalent to reuse the format and indication fields of LTE SCI format 1, in addition, increase indication field in reserved bits to indicate first indication information, and increase HARQ association information indication field to indicate the HARQ process associated with the same TB. Or, increase HARQ association information indication field.

[0150] Example 5

[0151] The format 3 of SA sent by a NR UE can be as follows:

[0152] i) priority indication field; for example, used to indicate the priority of the currently transmitted data.

[0153] ii) resource reservation indication field; for example, used to indicate the periodic value of periodic reservation.

[0154] iii) frequency domain resource indication field; for example, used to indicate the frequency domain location of initial transmission and retransmission resources.

[0155] iv) initial transmission and retransmission interval indication field; for example, used to indicate the time domain offset of the time domain location of initial transmission and retransmission resources, etc.

[0156] v) MCS indication field; for example, used to indicate the MCS level.

[0157] vi) retransmission indication field; for example, used to indicate whether retransmission is allowed.

[0158] vii) transmission format indication field; for example, used to indicate whether the transmission format adopts rate matching, TBS scaling, or puncturing and no TBS-scaling, etc.

[0159] viii) first indication information indication field.

[0160] ix) format indication field of second control information.

[0161] This SA is equivalent to reuse the format and indication fields of LTE SCI format 1, in addition, increase indication field in reserved bits to indicate first indication information, and increase format indication field of second control information to indicate the format of second control information, or only increase format indication field of second control information. This format 3 is suitable for the case of only first control information and second control information, at this time, indicate the format of second control information, for example, is SCI format 2-C or SCI format 2-D.

[0162] Example 6

[0163] A format 4 of SA sent by a NR UE can be shown as follows:

[0164] i) Priority indication field; such as, for indicating the priority of the current transmitted data.

[0165] ii) Resource reservation indication field; such as, for indicating the periodic value of the periodic reservation.

[0166] iii) Frequency domain resource indication field; such as, for indicating the frequency domain location of the initial transmission and retransmission resources.

[0167] iv) Initial transmission and retransmission interval indication field; such as, for indicating the time domain offset of the time domain location of the initial transmission and retransmission resources, etc.

[0168] v) MCS indication field; such as, for indicating the MCS level.

[0169] vi) Retransmission indication field; such as, for indicating whether the retransmission is allowed.

[0170] vii) Transmission format indication field; such as, for indicating whether the transmission format adopts rate matching, TBS scaling, or puncturing and no TBS-scaling, etc.

[0171] viii) First indication information indication field.

[0172] ix) Format indication field of the second control information.

[0173] x) PSFCH overhead indication field.

[0174] This SA is equivalent to the format and indication field of the reuse of LTE SCI format 1, in addition to which, the indication field in the reserved bit is increased to indicate the first indication information, and the format indication field of the second control information is increased to indicate the format of the second control information, and the PSFCH overhead indication field is increased to indicate the PSFCH overhead related information; or, the first indication information indication field can also not be increased, that is, the first indication information can also not be sent. This format 4 is suitable for the case of only the first control information and the second control information, at this time, the format of the second control information is indicated, for example, whether it is SCI format 2-C or SCI format 2-D. The indication of the PSFCH overhead information is suitable for the introduction of PSFCH feedback, which can be used to calculate the TBS.

[0175] Example 7

[0176] A format 5 of SA sent by a NR UE can be shown as follows:

[0177] i) Priority indication field; such as, for indicating the priority of the current transmitted data.

[0178] ii) Resource reservation indication field; such as, for indicating the periodic value of the periodic reservation.

[0179] iii) Frequency domain resource indication field; such as, for indicating the frequency domain location of the initial transmission and retransmission resources.

[0180] iv) Initial transmission retransmission interval indication field; such as, for indicating the time domain offset of the time domain location of the initial transmission and retransmission resources, etc.

[0181] v) MCS indication field; such as, for indicating the MCS level.

[0182] vi) Retransmission indication field; such as, for indicating whether the retransmission is allowed.

[0183] vii) Transmission format indication field; such as, for indicating whether the transmission format adopts rate matching, TBS scaling, or puncturing and no TBS-scaling, etc.

[0184] viii) First indication information indication field.

[0185] ix) Format indication field of the second control information.

[0186] x) Beta_offset indication field.

[0187] This SA is equivalent to the format and indication field of the reuse of LTE SCI format 1, in addition to which, the indication field in the reserved bit is increased to indicate the first indication information, and the format indication field of the second control information is added to indicate the format of the second control information; or, the first indication information indication field can also not be added, that is, the first indication information can also not be sent. This format 5 is suitable for the case of only the first control information and the second control information, at this time, the format of the second control information is indicated, for example, whether it is SCI format 2-C or SCI format 2-D. At the same time, the indication field Beta_offset is added to indicate the number of symbols occupied by the second control information if the second control information is carried on the PSSCH channel, etc. If PSFCH is enabled at this time, optionally, the PSFCH overhead indication field is added.

[0188] Example 8

[0189] The format 6 of the SA sent by an NR UE can be as follows:

[0190] i) Priority indication field; such as, for indicating the priority of the current transmitted data.

[0191] ii) resource reservation indication field; for example, used to indicate the periodic reservation value.

[0192] iii) frequency domain resource indication field; for example, used to indicate the frequency domain location of the initial transmission and retransmission resources.

[0193] iv) initial transmission-retransmission interval indication field; for example, used to indicate the time domain offset of the time domain location of the initial transmission and retransmission resources.

[0194] v) MCS indication field; for example, used to indicate the MCS level.

[0195] vi) retransmission indication field; for example, used to indicate whether retransmission is allowed.

[0196] vii) transmission format indication field; for example, used to indicate whether the transmission format uses rate matching, TBS scaling, or puncturing and no TBS-scaling, etc.

[0197] viii) reserved bits.

[0198] This SA completely reuses the format and indication content of the control information of the LTE UE, and is suitable for the case where no enhancement is made to the NR UE.

[0199] It should be noted that the information indication method provided in the embodiments of the present application can be executed by an information indication device, or a control module in the information indication device for executing the information indication method. In the embodiments of the present application, the information indication device executes the information indication method as an example, and the information indication device provided in the embodiments of the present application is described.

[0200] Please refer to Figure 4 , Figure 4 is a structural schematic diagram of an information indication device provided in the embodiments of the present application, which is applied to a terminal, such as an NR terminal, etc. As shown in Figure 4 , the information indication device 40 comprises:

[0201] a transceiving module 41, configured to send or receive first control information;

[0202] wherein the first control information is carried on a first control channel.

[0203] Optionally, the first control information comprises at least one of the following:

[0204] a first indication information indication field;

[0205] a priority indication field;

[0206] a resource reservation indication field;

[0207] a frequency domain resource indication field;

[0208] initial transmission retransmission interval indication field;

[0209] MCS indication field;

[0210] retransmission indication field;

[0211] transport format indication field;

[0212] HARQ association information indication field;

[0213] format indication field of the second control information;

[0214] PSFCH overhead indication field;

[0215] Beta_offset indication field.

[0216] Optionally, the first indication information indication field is used to indicate at least one of:

[0217] device type;

[0218] protocol version used by the terminal;

[0219] whether there is next level control information, and / or format of the next level control information;

[0220] resource allocation mode;

[0221] resource selection mode;

[0222] resource detection mode;

[0223] resource reservation mode is one of: periodic reservation, aperiodic reservation, periodic reservation and aperiodic reservation.

[0224] Optionally, the setting of the indication field in the first control information satisfies at least one of:

[0225] setting the first indication information indication field according to the content indicated by the first information;

[0226] setting the HARQ association information indication field according to the HARQ association information in the resource selection process;

[0227] setting the PSFCH overhead indication field according to the PSFCH period indicated by the first information;

[0228] setting the format indication field of the second control information according to the format of the second control information;

[0229] setting the priority indication field according to the highest priority in the priority of the corresponding transport block TB indicated by the first information;

[0230] According to the content indicated by the first information, a MCS indication field is set;

[0231] The initial retransmission interval indication field, the frequency domain resource indication field, and / or the retransmission indication field are set so that the time-frequency domain resource of the physical sidelink shared channel (PSSCH) determined by the resource selection process is consistent with the PSSCH resource allocation indicated by the configured grant (CG);

[0232] According to the reservation period information indicated by the first information, a reservation period indication field is set;

[0233] The first information includes at least one of the following: high layer indication, DCI, and SCI.

[0234] Optionally, the first control channel satisfies at least one of the following:

[0235] The encoding mode is turbo encoding;

[0236] The scrambling sequence generator performs initialization at the starting position of each time slot;

[0237] The modulation mode is quadrature phase shift keying (QPSK);

[0238] The layer mapping multiplexes the layer mapping rule of a single antenna port on a specific channel;

[0239] The transform precoding multiplexes the transform precoding rule of a specific channel;

[0240] The precoding multiplexes the precoding rule of a specific channel, and the number of layers is 1;

[0241] A preset rule is used to map to a physical resource.

[0242] Optionally, when the transceiver module 41 transmits the first control information, at least one of the following is satisfied:

[0243] The first control information is transmitted in a time unit of the PSSCH corresponding to the first control channel, and occupies two PRBs;

[0244] If the terminal receives DCI scheduling at time unit n, the first control information is transmitted in the first PSSCH time unit after no earlier than time n+Q; wherein the Q is related to the data packet processing time or the DCI processing time;

[0245] If the terminal receives DCI scheduling at PSSCH time unit t T The first control information is initially transmitted, and the indication information in the configuration sidelink grant indicates that the time interval of the initial transmission and the retransmission of the first control information is not 0, then the first control information is retransmitted in PSSCH time unit t T+gap The first control information is retransmitted; wherein the t T+gap And t TThe time interval is indicated by the information indicated in the configuration sidelink grant, and / or the position of the first control information starting the subchannel in the frequency domain is indicated by the information indicated in the configuration grant.

[0246] Optionally, when the terminal determines the RB pool of the first control channel, any of the following is met:

[0247] If the resource pool configures the terminal to send the first control channel and the corresponding PSSCH on the adjacent RBs in the time unit, the resource of the first control channel is two continuous PRBs, and the indexes of the two continuous PRBs are related to the index of the starting subchannel and the size of the subchannel.

[0248] If the resource pool configures the terminal to send the first control channel and the corresponding PSSCH on the non-adjacent RBs in the time unit, the resource of the first control channel is two continuous PRBs, and the indexes of the two continuous PRBs are related to the index of the starting RB of the first control channel pool.

[0249] Optionally, when the terminal receives the first control information, at least one of the following is met:

[0250] When the terminal detects the first control information on the first control channel, the corresponding first control information is decoded according to the resource configuration of the first control channel;

[0251] The terminal does not detect more than one first control information on the first control channel at each first control channel candidate resource position.

[0252] Before decoding the first control information on the first control channel, the terminal does not assume that the reserved bits in the first control information have any one value.

[0253] Optionally, the subcarrier spacing used by the terminal when receiving and transmitting information adopts a specific frequency.

[0254] Optionally, the subchannel of the resource pool of the terminal meets at least one of the following:

[0255] The protocol, network pre-configuration and / or network configuration predefine the subchannel size in the resource pool of the terminal as {n5, n6, n10, n15, n20, n25, n50, n75, n100};

[0256] The protocol, network pre-configuration and / or network configuration predefine the subchannel size in the resource pool of the terminal as {n4, n5, n6, n8, n9, n10, n12, n15, n16, n18, n20, n30, n48, n72, n96}.

[0257] Optionally, the information indication apparatus 40 further comprises:

[0258] a determining module configured to determine a first parameter, wherein the first parameter is determined based on at least one of the following: protocol predefinition, network pre-configuration, terminal pre-configuration, network configuration, terminal configuration, and the first parameter is used to indicate whether the control information of the terminal is frequency domain separated from the data information.

[0259] The information indication apparatus in the embodiments of the present application can be an apparatus, an apparatus with an operating system or an electronic device, and can also be a component in a terminal, an integrated circuit or a chip. The apparatus or the electronic device can be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal can include, but is not limited to, the types of the terminal 11 listed above, and the non-mobile terminal can be a server, a Network Attached Storage (NAS), a personal computer (PC), a television (TV), a cashier machine or a self-service machine, etc., and the embodiments of the present application are not limited specifically.

[0260] The information indication apparatus 40 provided in the embodiments of the present application can implement each process of the method embodiments and achieve the same technical effects, and thus details are not repeated here. Figure 2

[0261] Optionally, as shown in Figure 5 the embodiments of the present application further provide a terminal 50, which includes a processor 51, a memory 52, a program or instructions stored in the memory 52 and executable on the processor 51, and the program or instructions are executed by the processor 51 to implement each process of the above information indication method embodiments and achieve the same technical effects, and thus details are not repeated here.

[0262] The embodiments of the present application further provide a terminal, which includes a processor and a communication interface, and the communication interface is used to send or receive first control information. The first control information is carried on a first control channel. The terminal embodiment corresponds to the above information indication method embodiment, each implementation process and implementation manner of the above method embodiment can be applied to the terminal embodiment and achieve the same technical effects, and thus details are not repeated here.

[0263] Specifically, Figure 6 a hardware structure diagram of a terminal for implementing the embodiments of the present application.

[0264] ​The terminal 600 includes, but is not limited to, at least part of components such as a radio frequency unit 601, a network module 602, an audio output unit 603, an input unit 604, a sensor 605, a display unit 606, a user input unit 607, an interface unit 608, a memory 609, and a processor 610.

[0265] Those skilled in the art can understand that the terminal 600 can further include a power supply (such as a battery) for supplying power to each component, and the power supply can be logically connected to the processor 610 through a power management system, so as to realize functions such as management of charging, discharging, and power consumption management through the power management system. Figure 6 The terminal structure shown in the figure does not constitute a limitation on the terminal, and the terminal can include more or fewer components than those shown, or combine certain components, or different component arrangements, which are not described here.

[0266] It should be understood that in the embodiments of the present application, the input unit 604 can include a graphics processor (GPU) 6041 and a microphone 6042. The graphics processor 6041 processes image data of a still picture or a video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 606 can include a display panel 6061, which can be configured in the form of a liquid crystal display, an organic light-emitting diode, etc. The user input unit 607 includes a touch panel 6071 and other input devices 6072. The touch panel 6071 is also called a touch screen. The touch panel 6071 can include two parts of a touch detection device and a touch controller. The other input devices 6072 can include, but are not limited to, a physical keyboard, function keys (such as volume control keys, on-off keys, etc.), trackballs, mice, joysticks, etc., which are not described here.

[0267] In the embodiments of the present application, the radio frequency unit 601 receives downlink data from a network side device and processes the data by the processor 610; in addition, the radio frequency unit 601 sends uplink data to the network side device. Generally, the radio frequency unit 601 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0268] The memory 609 can be used to store software programs or instructions and various data. The memory 609 can mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area can store an operating system, application programs or instructions required by at least one function (such as a sound playing function, an image playing function, etc.), etc. In addition, the memory 609 can include a high-speed random access memory, and can also include a non-volatile memory, which can be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically erasable programmable read-only memory (Electrically EPROM, EEPROM), or a flash memory. For example, at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state memory device.

[0269] The processor 610 can include one or more processing units; optionally, the processor 610 can integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, and application programs or instructions, etc., and the modem processor mainly processes wireless communication, such as a baseband processor. It can be understood that the above-mentioned modem processor can also not be integrated into the processor 610.

[0270] The radio frequency unit 601 is configured to send or receive first control information; the first control information is carried on a first control channel.

[0271] The terminal 600 provided by the embodiments of the present application can implement the method embodiments of the above-mentioned processes and achieve the same technical effects. To avoid repetition, details are not described herein. Figure 2 The method embodiments of the above-mentioned processes and achieve the same technical effects. To avoid repetition, details are not described herein.

[0272] The embodiments of the present application also provide a readable storage medium, the readable storage medium stores a program or instructions, the program or instructions are executed by a processor to implement the above-mentioned information indication method embodiments of various processes, and the same technical effects can be achieved. To avoid repetition, details are not described herein.

[0273] The processor is the processor in the terminal in the above-mentioned embodiments. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, etc.

[0274] The chip provided by the embodiment of the present application comprises a processor and a communication interface, the communication interface is coupled with the processor, the processor is used to run programs or instructions, realizes the processes of the information indication method embodiments, and can achieve the same technical effects. To avoid repetition, details are not described here.

[0275] It should be understood that the chip mentioned in the embodiment of the present application can also be referred to as a system chip, a system chip, a chip system or a system on chip, etc.

[0276] It should be noted that in this paper, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "includes a" does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the method and device in the embodiment of the present application is not limited to the order of functions shown or discussed, but can also include functions performed in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method can be performed in an order different from that described, and various steps can also be added, omitted or combined. In addition, the features described with reference to some examples can be combined in other examples.

[0277] From the above description of the embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment method can be realized by software and necessary general hardware platform, of course, it can also be realized by hardware, but in many cases, the former is a better embodiment. Based on such understanding, the technical solutions of the present application can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), including a plurality of instructions for making a terminal (which can be a mobile phone, computer, server, air conditioner or network side device, etc.) execute the method described in each embodiment of the present application.

[0278] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above specific embodiments, the above specific embodiments are only illustrative, not restrictive, and those skilled in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the protection scope of the claims.

Claims

1. An information indicating method characterized by comprising: The method comprises: a terminal sending or receiving first control information; wherein the first control information is carried on a first control channel; the format of the first control information is a control information format in a long term evolution (LTE) system; and the terminal is a terminal in a new radio (NR) system.

2. The method of claim 1, wherein, The first control information comprises at least one of: a first indication information indication field; a priority indication field; a resource reservation indication field; a frequency domain resource indication field; a first transmission and retransmission interval indication field; a modulation and coding strategy (MCS) indication field; a retransmission indication field; a transmission format indication field; a hybrid automatic repeat request (HARQ) association information indication field; a second control information format indication field; a physical sidelink feedback channel (PSFCH) overhead indication field; a Beta_offset indication field.

3. The method of claim 2, wherein, The first indication information indication field is used to indicate at least one of: a device type; a protocol version used by the terminal; whether there is next level control information and / or the format of the next level control information; a resource allocation mode; a resource selection mode; a resource detection mode; a resource reservation mode being one of: periodic reservation, aperiodic reservation, periodic reservation and aperiodic reservation.

4. The method of claim 2, wherein, The setting of the indication field in the first control information satisfies at least one of: setting the first indication information indication field according to the content indicated by the first information; setting the HARQ association information indication field according to the HARQ association information in the resource selection process; setting the PSFCH overhead indication field according to the PSFCH period indicated by the first information; setting the second control information format indication field according to the format of the second control information; setting the priority indication field according to the highest priority among the priorities of the corresponding transport blocks (TBs) indicated by the first information; setting the MCS indication field according to the content indicated by the first information; setting the first transmission and retransmission interval indication field, the frequency domain resource indication field and / or the retransmission indication field so that the time and frequency domain resources of a physical sidelink shared channel (PSSCH) determined by the resource selection process are consistent with the PSSCH resource allocation indicated by the configured grant (CG); setting the reservation period indication field according to the reservation period information indicated by the first information; wherein the first information comprises at least one of: high layer indication, downlink control information (DCI) and sidelink control information (SCI).

5. The method of claim 1, wherein, The first control channel satisfies at least one of: the encoding mode being turbo encoding; the scrambling sequence generator performing initialization at the start of each time slot; the modulation mode being quadrature phase shift keying (QPSK); layer mapping multiplexing a layer mapping rule of a single antenna port on a specific channel; transform precoding multiplexing a transform precoding rule of a specific channel; precoding multiplexing a precoding rule of a specific channel, and the number of layers being 1; mapping to a physical resource by using a preset rule.

6. The method of claim 1, wherein, When the terminal sends the first control information, at least one of the following is satisfied: the first control information is sent in a time unit of a PSSCH corresponding to the first control channel, and occupies two PRBs. If the terminal receives the DCI scheduling at time unit n, the terminal transmits the first control information at the first PSSCH time unit after no earlier than n+Q; wherein the Q is related to a data packet processing time or a DCI processing time; If the terminal is in a PSSCH time unit t T initially transmits the first control information, and the indication information in the configuration sidelink grant indicates that the time interval of the initial transmission and the retransmission of the first control information is not 0, in a PSSCH time unit t T+gap retransmits the first control information; wherein the time interval of t T+gap and t T is indicated by the indication information in the configuration sidelink grant, and / or the position of the first control information starting a subchannel in the frequency domain is indicated by the indication information in the configuration grant.

7. The method of claim 1, wherein, When the terminal determines the resource block (RB) pool of the first control channel, the following conditions are met: If the terminal transmits the first control channel and the corresponding PSSCH on adjacent RBs in a time unit according to the resource pool configuration, the resource of the first control channel is two continuous PRBs, and the index of the two continuous PRBs is related to the index of the starting subchannel and the size of the subchannel; If the terminal transmits the first control channel and the corresponding PSSCH on non-adjacent RBs in a time unit according to the resource pool configuration, the resource of the first control channel is two continuous PRBs, and the index of the two continuous PRBs is related to the index of the starting RB of the first control channel pool.

8. The method of claim 1, wherein, When the terminal receives the first control information, at least one of the following conditions is met: When the terminal detects the first control information on the first control channel, the terminal decodes the corresponding first control information according to the resource configuration of the first control channel; The terminal does not detect more than one first control information on the first control channel at each first control channel candidate resource position. Before the terminal decodes the first control information on the first control channel, the terminal does not assume that the reserved bits in the first control information have any one value.

9. The method of claim 1, wherein, The subcarrier spacing used by the terminal when transmitting and receiving information is a specific frequency.

10. The method of claim 1, wherein, The subchannels of the resource pool in which the terminal is located meet at least one of the following conditions: The protocol predefines, the network preconfigures, and / or the network configures the subchannel size in the resource pool of the terminal to be {n5, n6, n10, n15, n20, n25, n50, n75, n100}; The protocol predefines, the network preconfigures, and / or the network configures the subchannel size in the resource pool of the terminal to be {n4, n5, n6, n8, n9, n10, n12, n15, n16, n18, n20, n30, n48, n72, n96}.

11. The method of claim 1, wherein, The method further comprises: determining a first parameter; wherein the first parameter is a parameter determined based on at least one of the following: protocol predefinition, network preconfiguration, terminal preconfiguration, network configuration, terminal configuration; the first parameter is used to indicate whether the control information of the terminal is frequency domain separated from the data information.

12. An information indicating device, characterized by comprising: comprises: a transceiving module configured to transmit or receive first control information; wherein the first control information is carried on a first control channel; the format of the first control information is a control information format in an LTE system; and the transceiving module is deployed in a terminal in an NR system.

13. The apparatus of claim 12, wherein, The first control information comprises at least one of the following: first indication information indicating domain; priority indication domain; resource reservation indication domain; frequency domain resource indication domain; initial transmission and retransmission interval indication domain; MCS indication domain; retransmission indication domain; transport format indication domain; HARQ association information indication domain; a format indication field of second control information; a PSFCH overhead indication field; a Beta_offset indication field.

14. The apparatus of claim 13, wherein, The first indication information indication field is used to indicate at least one of the following: a device type; a protocol version used by the terminal; whether there is next level control information, and / or the format of the next level control information; a resource allocation mode; a resource selection mode; a resource detection mode; a resource reservation mode, which is one of the following: periodic reservation, aperiodic reservation, periodic reservation and aperiodic reservation.

15. The apparatus of claim 12, wherein, The first control channel satisfies at least one of the following: the encoding mode is turbo encoding; the scrambling sequence generator performs initialization at the start of each time slot; the modulation mode is quadrature phase shift keying (QPSK); the layer mapping multiplexes the layer mapping rule of a single antenna port on a specific channel; the transform precoding multiplexes the transform precoding rule of a specific channel; the precoding multiplexes the precoding rule of a specific channel, and the number of layers is 1; a preset rule is used to map to a physical resource.

16. The apparatus of claim 12, wherein, When the transceiver module transmits the first control information, at least one of the following is satisfied: The first control information is transmitted in a time unit in which the first control channel corresponding PSSCH is transmitted, and occupies two PRBs. If the terminal receives DCI scheduling in time unit n, the first control information is transmitted in the first PSSCH time unit after no earlier than time n+Q; wherein the Q is related to the data packet processing time or the DCI processing time. If the terminal is in a PSSCH time unit t T initially transmits the first control information, and the indication information in the configuration sidelink grant indicates that the time interval of the initial transmission and the retransmission of the first control information is not 0, in a PSSCH time unit t T+gap retransmits the first control information; wherein the t T+gap The time interval of t T is indicated by the indication information in the configuration sidelink grant, and / or the position of the starting subchannel of the first control information in the frequency domain is indicated by the indication information in the configuration grant.

17. The apparatus of claim 12, wherein, When the terminal determines the RB pool of the first control channel, any one of the following is satisfied: If the resource pool configuration terminal transmits the first control channel and the corresponding PSSCH on adjacent RBs in a time unit, the resource of the first control channel is two consecutive PRBs, and the index of the two consecutive PRBs is related to the index of the starting subchannel and the size of the subchannel. If the resource pool configuration terminal transmits the first control channel and the corresponding PSSCH on non-adjacent RBs in a time unit, the resource of the first control channel is two consecutive PRBs, and the index of the two consecutive PRBs is related to the index of the starting RB of the first control channel pool.

18. The apparatus of claim 12, wherein, When the terminal receives the first control information, at least one of the following is satisfied: When detecting the first control information on the first control channel, the corresponding first control information is decoded according to the resource configuration of the first control channel; No more than one first control information on the first control channel is detected at each first control channel candidate resource position. Before decoding the first control information on the first control channel, it is not assumed that the reserved bits in the first control information have any one value.

19. A terminal, characterized by The readable storage medium stores a program or instructions, which are executed by the processor to implement the steps of the information indication method according to any one of claims 1-11.

20. A readable storage medium, characterized by, The readable storage medium stores a program or instructions, which are executed by the processor to implement the steps of the information indication method according to any one of claims 1-11.

Images