Information transmission method, and device and storage medium

Abstract

The present disclosure relates to an information transmission method, and a device and a storage medium. The method comprises: sending indication information, which is used for indicating a transmission state of a sidelink positioning reference signal (SL PRS) desired by a terminal device. In this way, a terminal device can indicate, on the basis of indication information, a transmission state of a desired SL PRS, thereby improving the flexibility of SL PRS management.

Description

Information transmission method, device and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to an information transmission method, device, and storage medium. Background Art

[0002] With the development of wireless communication technology, the 3rd Generation Partnership Project (3GPP) has defined a direct link (also known as a side link or sidelink) communication method to enable direct communication between terminal devices. For example, a typical application scenario of a direct link is the vehicle-to-everything (V2X) network. In the V2X network, each vehicle can act as a terminal, and information can be transmitted between terminals via a direct link, effectively reducing communication latency.

[0003] In a direct link communication scenario, in order to perform positioning or ranging of a terminal device, the terminal device is required to send and / or receive a direct link positioning reference signal (Sidelink Positioning Reference Signal, SL PRS).

[0004] Summary of the Invention

[0005] The embodiments of the present disclosure provide an information transmission method, device, and storage medium.

[0006] According to a first aspect of an embodiment of the present disclosure, a method for transmitting information is provided, which is executed by a terminal device. The method includes:

[0007] Send indication information, where the indication information is used to indicate the transmission status of the direct link positioning reference signal SL PRS expected by the terminal device.

[0008] According to a second aspect of an embodiment of the present disclosure, a method for transmitting information is provided, which is performed by a network device. The method includes:

[0009] Receive indication information, where the indication information is used to indicate a transmission status of a direct link positioning reference signal SL PRS expected by a terminal device.

[0010] According to a third aspect of an embodiment of the present disclosure, a terminal device is provided, including:

[0011] The transceiver module is configured to send indication information, where the indication information is used to indicate the transmission status of the direct link positioning reference signal SL PRS expected by the terminal device.

[0012] According to a fourth aspect of an embodiment of the present disclosure, a network device is provided, including:

[0013] The transceiver module is configured to receive indication information, where the indication information is used to indicate the transmission status of the direct link positioning reference signal SL PRS expected by the terminal device.

[0014] According to a fifth aspect of an embodiment of the present disclosure, a communication device is proposed, comprising: one or more processors; wherein the communication device can be used to execute an optional implementation of the first aspect or the second aspect.

[0015] According to a sixth aspect of an embodiment of the present disclosure, a storage medium is proposed, which stores instructions. When the instructions are executed on a communication device, the communication device executes the method described in the optional implementation of the first aspect or the second aspect.

[0016] The technical solution provided by the embodiments of the present disclosure may include the following beneficial effects: Using the above method, indication information is sent, where the indication information is used to indicate the transmission status of the direct link positioning reference signal (SL PRS) desired by the terminal device. In this way, the terminal device can indicate the desired SL PRS transmission status based on the indication information, thereby improving the flexibility of SL PRS management.

[0017] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following drawings required for describing the embodiments are introduced. The following drawings are merely some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure.

[0019] FIG1A is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0020] FIG1B is a schematic diagram showing a positioning scenario according to an embodiment of the present disclosure.

[0021] FIG2A is a schematic flow chart of an information transmission method according to an embodiment of the present disclosure.

[0022] FIG2B is a flow chart showing an information transmission method according to an embodiment of the present disclosure.

[0023] FIG3A is a flow chart showing an information transmission method according to an embodiment of the present disclosure.

[0024] FIG3B is a flow chart illustrating an information transmission method according to an embodiment of the present disclosure.

[0025] FIG4A is a flow chart showing an information transmission method according to an embodiment of the present disclosure.

[0026] FIG4B is a flow chart illustrating an information transmission method according to an embodiment of the present disclosure.

[0027] FIG5 is a flow chart showing an information transmission method according to an embodiment of the present disclosure.

[0028] FIG6A is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.

[0029] FIG6B is a schematic structural diagram of a network device according to an embodiment of the present disclosure.

[0030] FIG7A is a schematic structural diagram of a communication device according to an embodiment of the present disclosure.

[0031] FIG7B is a schematic structural diagram of a chip according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0032] The embodiments of the present disclosure provide an information transmission method, device, and storage medium.

[0033] In a first aspect, an embodiment of the present disclosure provides an information transmission method, the method comprising:

[0034] Send indication information, where the indication information is used to indicate the transmission status of the direct link positioning reference signal SL PRS expected by the terminal device.

[0035] In the above embodiment, the terminal device can indicate the desired transmission status of the SL PRS based on the indication information, thereby improving the flexibility of SL PRS management.

[0036] In conjunction with some embodiments of the first aspect, in some embodiments, the desired SL PRS transmission status includes any one of the following:

[0037] Expect to receive SL PRS;

[0038] Expect to stop receiving SL PRS;

[0039] Request allocation of resources for sending SL PRS;

[0040] Request to release resources used to send SL PRS;

[0041] Expect to send SL PRS;

[0042] It is desired to stop sending SL PRS.

[0043] In the above embodiment, the terminal device can flexibly manage the SL PRS.

[0044] In combination with some embodiments of the first aspect, in some embodiments, the transmission status of the desired SL PRS is that the SL PRS is expected to be received; and the sending indication information includes:

[0045] Determining that the terminal device meets the first condition, and sending the indication information;

[0046] The first condition includes at least one of the following:

[0047] Determining to perform SL PRS reception according to configuration information, where the configuration information is high-layer configuration information of the terminal device;

[0048] The terminal device enters a connected state and does not send the indication information;

[0049] The terminal device is connected to a new serving cell after sending the indication information, and the serving cell does not provide a system message including the direct link common configuration sl-ConfigCommonNR;

[0050] The terminal device receives a system message, where the system message includes SL PRS resource configuration information;

[0051] The frequency information at which the terminal device expects to receive the SL PRS is not carried in the indication information that has been sent;

[0052] The frequency information at which the terminal device expects to receive the SL PRS has changed and is different from the frequency information carried in the indication information that has been sent.

[0053] In combination with some embodiments of the first aspect, in some embodiments, the configuration information includes frequency information for receiving the SL PRS.

[0054] In the above embodiment, the terminal device can flexibly receive the SL PRS based on any of the above conditions.

[0055] In conjunction with some embodiments of the first aspect, in some embodiments, the desired SL PRS transmission status is a desired stop receiving SL PRS; and the sending indication information includes:

[0056] Determining that the terminal device meets the second condition, and sending the indication information;

[0057] The second condition includes determining to no longer perform SL PRS reception based on configuration information, and the configuration information is high-level configuration information of the terminal device.

[0058] In the above embodiment, the terminal device can flexibly stop receiving the SL PRS based on any of the above conditions.

[0059] In combination with some embodiments of the first aspect, in some embodiments, the indication information includes at least one frequency information, and the frequency information is used to determine the frequency at which the terminal device expects to receive the SL PRS.

[0060] In conjunction with some embodiments of the first aspect, in some embodiments, the indication information includes first indication information and second indication information, and sending the indication information includes:

[0061] Sending first indication information, where the first indication information is used to indicate that the terminal device expects to receive SL PRS;

[0062] Send second indication information, where the second indication information is used to indicate that the terminal device expects to stop receiving SL PRS.

[0063] In the above embodiment, the terminal device can flexibly receive or stop receiving the SL PRS.

[0064] In conjunction with some embodiments of the first aspect, in some embodiments, the desired SL PRS transmission status includes a request to allocate resources for sending the SL PRS; and the sending indication information includes:

[0065] Determining that the terminal device meets the third condition, and sending the indication information;

[0066] The third condition includes at least one of the following:

[0067] The upper layer of the terminal device triggers periodic SL PRS transmission;

[0068] The terminal device enters a connected state and does not send the indication information;

[0069] The terminal device is connected to a new serving cell after sending the indication information, and the serving cell does not provide a system message including the direct link common configuration sl-ConfigCommonNR;

[0070] The terminal device receives a system message, where the system message includes SL PRS resource configuration information;

[0071] The SL PRS sending resource request information of the terminal device is not carried in the indication information that has been sent;

[0072] The resource request information sent by the SL PRS of the terminal device changes and is different from the information carried in the indication information that has been sent.

[0073] In the above embodiment, the terminal device can flexibly request allocation of resources for sending SL PRS based on any of the above conditions.

[0074] In conjunction with some embodiments of the first aspect, in some embodiments, the desired SL PRS transmission status includes a request to release resources used to send the SL PRS; and the sending indication information includes:

[0075] Determining that the terminal device meets the fourth condition, and sending the indication information;

[0076] The fourth condition includes at least one of the following:

[0077] Determining, according to configuration information, to no longer send the SL PRS, where the configuration information is information configured by a higher layer of the terminal device;

[0078] Determine according to the configuration information that resources for sending the SL PRS are no longer occupied.

[0079] In the above embodiment, the terminal device can flexibly release the resources used to send the SL PRS based on any of the above conditions.

[0080] In conjunction with some embodiments of the first aspect, in some embodiments, the indication information includes at least one first information, where the first information is used to determine at least one of the following:

[0081] The bandwidth requirement corresponding to the SL PRS;

[0082] The duration requirement corresponding to the SL PRS;

[0083] The comb size requirements corresponding to the SL PRS;

[0084] The resource set requirement corresponding to the SL PRS, wherein the resource set includes a correspondence between duration and comb size;

[0085] The delay budget or remaining delay budget corresponding to the SL PRS;

[0086] Positioning service quality QoS information of the SL PRS;

[0087] The priority of the SL PRS;

[0088] The transmission period of the SL PRS;

[0089] The target identifier of the SL PRS is the identifier of the terminal device receiving the SL PRS.

[0090] In the above embodiment, the first information may indicate information about the resources required by the SL PRS, so that the network device can reasonably allocate the first resources according to the first information.

[0091] In combination with some embodiments of the first aspect, in some embodiments, the first information includes index parameters, and the index parameters are used to determine the bandwidth requirement, the duration requirement, and the comb size requirement.

[0092] In combination with some embodiments of the first aspect, in some embodiments, the index parameter is used to determine one piece of demand information among multiple pieces of demand information, and the one piece of demand information includes at least one of the bandwidth requirement, the duration requirement, or the comb size requirement.

[0093] In the above embodiment, the index parameter can be used to reduce the content of the first information and improve communication efficiency.

[0094] In combination with some embodiments of the first aspect, in some embodiments, the positioning QoS information includes at least one of horizontal accuracy, vertical accuracy, distance accuracy or angle accuracy of positioning.

[0095] In conjunction with some embodiments of the first aspect, in some embodiments, the indication information includes third indication information and fourth indication information, and sending the indication information includes:

[0096] Sending third indication information, where the third indication information is used to instruct the terminal device to request allocation of resources for sending the SL PRS;

[0097] Send fourth indication information, where the fourth indication information is used to instruct the terminal device to request the release of resources used to send SL PRS.

[0098] In combination with some embodiments of the first aspect, in some embodiments, the indication information is carried by a radio resource control RRC message.

[0099] In combination with some embodiments of the first aspect, in some embodiments, the SL PRS is a periodic SL PRS.

[0100] In the above embodiment, the terminal device can flexibly manage the periodic SL PRS.

[0101] In a second aspect, an embodiment of the present disclosure provides an information transmission method, which is performed by a network device. The method includes:

[0102] Receive indication information, where the indication information is used to indicate a transmission status of a direct link positioning reference signal SL PRS expected by a terminal device.

[0103] In the above embodiment, the terminal device can indicate the desired transmission status of the SL PRS based on the indication information, thereby improving the flexibility of SL PRS management.

[0104] In conjunction with some embodiments of the second aspect, in some embodiments, the desired SL PRS transmission status includes any one of the following:

[0105] Expect to receive SL PRS;

[0106] Expect to stop receiving SL PRS;

[0107] Request allocation of resources for sending SL PRS;

[0108] Request to release resources used to send SL PRS;

[0109] Expect to send SL PRS;

[0110] It is desired to stop sending SL PRS.

[0111] In conjunction with some embodiments of the second aspect, in some embodiments, the transmission status of the desired SL PRS is that the SL PRS is expected to be received; and the reception indication information includes:

[0112] Determining that the terminal device meets the first condition, and receiving the indication information;

[0113] The first condition includes at least one of the following:

[0114] Determining to perform SL PRS reception according to configuration information, where the configuration information is high-layer configuration information of the terminal device;

[0115] The terminal device enters a connected state and does not send the indication information;

[0116] The terminal device is connected to a new serving cell after sending the indication information, and the serving cell does not provide a system message including the direct link common configuration sl-ConfigCommonNR;

[0117] The terminal device receives a system message, where the system message includes SL PRS resource configuration information;

[0118] The frequency information at which the terminal device expects to receive the SL PRS is not carried in the indication information that has been sent;

[0119] The frequency information at which the terminal device expects to receive the SL PRS has changed and is different from the frequency information carried in the indication information that has been sent.

[0120] In combination with some embodiments of the second aspect, in some embodiments, the configuration information includes frequency information for receiving the SL PRS.

[0121] In conjunction with some embodiments of the second aspect, in some embodiments, the desired SL PRS transmission status is a desired stop receiving SL PRS; and the reception indication information includes:

[0122] Determining that the terminal device meets the second condition, and receiving the indication information;

[0123] The second condition includes determining to no longer perform SL PRS reception based on configuration information, and the configuration information is high-level configuration information of the terminal device.

[0124] In combination with some embodiments of the second aspect, in some embodiments, the indication information includes at least one frequency information, and the frequency information is used to determine the frequency at which the terminal device expects to receive the SL PRS.

[0125] In conjunction with some embodiments of the second aspect, in some embodiments, the indication information includes first indication information and second indication information, and the receiving indication information includes:

[0126] receiving first indication information, where the first indication information is used to indicate that the terminal device expects to receive an SL PRS;

[0127] Receive second indication information, where the second indication information is used to indicate that the terminal device expects to stop receiving SL PRS.

[0128] In conjunction with some embodiments of the second aspect, in some embodiments, the desired SL PRS transmission status includes a request for allocation of resources for sending the SL PRS; and the reception indication information includes:

[0129] Determining that the terminal device meets a third condition, and receiving the indication information;

[0130] The third condition includes at least one of the following:

[0131] The upper layer of the terminal device triggers periodic SL PRS transmission;

[0132] The terminal device enters a connected state and does not send the indication information;

[0133] The terminal device is connected to a new serving cell after sending the indication information, and the serving cell does not provide a system message including the direct link common configuration sl-ConfigCommonNR;

[0134] The terminal device receives a system message, where the system message includes SL PRS resource configuration information;

[0135] The SL PRS sending resource request information of the terminal device is not carried in the indication information that has been sent;

[0136] The resource request information sent by the SL PRS of the terminal device changes and is different from the information carried in the indication information that has been sent.

[0137] In conjunction with some embodiments of the second aspect, in some embodiments, the desired SL PRS transmission status includes a request to release resources used to send the SL PRS; and the reception indication information includes:

[0138] Determining that the terminal device meets the fourth condition, and receiving the indication information;

[0139] The fourth condition includes at least one of the following:

[0140] Determining, according to configuration information, to no longer send the SL PRS, where the configuration information is information configured by a higher layer of the terminal device;

[0141] Determine according to the configuration information that resources for sending the SL PRS are no longer occupied.

[0142] In conjunction with some embodiments of the second aspect, in some embodiments, the indication information includes at least one first information, where the first information is used to determine at least one of the following:

[0143] The bandwidth requirement corresponding to the SL PRS;

[0144] The duration requirement corresponding to the SL PRS;

[0145] The comb size requirements corresponding to the SL PRS;

[0146] The resource set requirement corresponding to the SL PRS, wherein the resource set includes a correspondence between duration and comb size;

[0147] The delay budget or remaining delay budget corresponding to the SL PRS;

[0148] Positioning service quality QoS information of the SL PRS;

[0149] The priority of the SL PRS;

[0150] The transmission period of the SL PRS;

[0151] The target identifier of the SL PRS is the identifier of the terminal device receiving the SL PRS.

[0152] In combination with some embodiments of the second aspect, in some embodiments, the first information includes index parameters, and the index parameters are used to determine the bandwidth requirement, the duration requirement, and the comb size requirement.

[0153] In combination with some embodiments of the second aspect, in some embodiments, the index parameter is used to determine one piece of demand information among multiple pieces of demand information, and the one piece of demand information includes at least one of the bandwidth requirement, the duration requirement, or the comb size requirement.

[0154] In combination with some embodiments of the second aspect, in some embodiments, the positioning QoS information includes at least one of horizontal accuracy, vertical accuracy, distance accuracy or angle accuracy of positioning.

[0155] In conjunction with some embodiments of the second aspect, in some embodiments, the indication information includes third indication information and fourth indication information, and the receiving indication information includes:

[0156] receiving third indication information, where the third indication information is used to instruct the terminal device to request allocation of resources for sending an SL PRS;

[0157] Receive fourth indication information, where the fourth indication information is used to instruct the terminal device to request the release of resources used to send SL PRS.

[0158] In combination with some embodiments of the second aspect, in some embodiments, the indication information is carried by a radio resource control RRC message.

[0159] In combination with some embodiments of the second aspect, in some embodiments, the SL PRS is a periodic SL PRS.

[0160] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0161] Send SL PRS configuration information; the SL PRS configuration information is used to instruct the terminal device to determine the transmission status of the SL PRS.

[0162] In a third aspect, an embodiment of the present disclosure proposes a terminal device, which may include at least one of a transceiver module and a processing module; wherein the terminal device can be used to execute the optional implementation method of the first aspect.

[0163] In a fourth aspect, an embodiment of the present disclosure proposes a network device, which may include at least one of a transceiver module and a processing module; wherein the network device can be used to execute the optional implementation method of the second aspect.

[0164] In a fifth aspect, an embodiment of the present disclosure proposes a communication device, which may include: one or more processors; wherein the communication device can be used to execute an optional implementation of the first aspect or the second aspect.

[0165] In a sixth aspect, an embodiment of the present disclosure proposes a storage medium storing instructions, which, when executed on a communication device, enables the communication device to execute the method described in the optional implementation manner of the first aspect or the second aspect.

[0166] In a seventh aspect, an embodiment of the present disclosure proposes a program product, which, when executed by a communication device, enables the communication device to execute the method described in the optional implementation manner of the first aspect or the second aspect.

[0167] In an eighth aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the optional implementation of the first or second aspect.

[0168] In a ninth aspect, an embodiment of the present disclosure provides a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute the method described in the optional implementation of the first aspect or the second aspect.

[0169] In the tenth aspect, an embodiment of the present disclosure proposes a communication system, which may include: a terminal device and a network device; wherein, the terminal device is configured to execute the method described in the optional implementation manner of the first aspect, and the network device is configured to execute the method described in the optional implementation manner of the second aspect.

[0170] It is understandable that the above-mentioned terminal devices, network devices, communication devices, communication systems, storage media, program products, computer programs, chips, or chip systems can all be used to perform the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0171] The present disclosure provides an information transmission method, device, and storage medium. In some embodiments, the terms "information transmission method" and "information processing method" and "communication method" are interchangeable; "information transmission device" and "information processing device" and "communication device" are interchangeable; and "information processing system" and "communication system" are interchangeable.

[0172] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0173] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0174] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0175] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0176] In some embodiments, "plurality" may refer to two or more.

[0177] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0178] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0179] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0180] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0181] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0182] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0183] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0184] In some embodiments, devices and the like can be interpreted as physical or virtual, and their names are not limited to those described in the embodiments. Terms such as "device," "equipment," "device," "circuit," "network element," "node," "function," "unit," "section," "system," "network," "chip," "chip system," "entity," and "subject" can be used interchangeably.

[0185] In some embodiments, "network" can be interpreted as devices included in the network (eg, network equipment, access network equipment, core network equipment, etc.).

[0186] In some embodiments, the network device may include at least one of an access network device and a core network device.

[0187] In some embodiments, the terms "Access Network Device (AN Device)", "Radio Access Network Device (RAN Device)", "Base Station (BS)", "Radio Base Station (Radio Base Station)", "Fixed Station (Fixed Station)", "Node (Node)", "Access Point (Access Point)", "Transmission Point (TP)", "Reception Point (RP)", "Transmission and / or Reception Point (TRP))", "Panel (Panel)", "Antenna Panel (Antenna Panel)", "Antenna Array (Antenna Array)" "Cell (Cell)", "Macro Cell (Macro Cell)", "Small Cell (Small Cell)", "Femto Cell (Femto Cell)", "Pico Cell (Pico Cell)" "Sector (Sector)", "Cell Group (Cell Group)", "Serving Cell (Cell)", "Carrier (Carrier)", "Component Carrier (Component Carrier)", "Bandwidth Part (BWP)" and the like may be used interchangeably.

[0188] In some embodiments, the terms "terminal", "terminal device", "terminal side device", "user equipment (UE)", "user terminal" "mobile station (MS)", "mobile terminal (MT)", subscriber station (Subscriber Station), mobile unit (Mobile Unit), subscriber unit (Subscriber Unit), wireless unit (Wireless Unit), remote unit (Remote Unit), mobile device (Mobile Device), wireless device (Wireless Device), wireless communication device (Wireless Communication Device), remote device (Remote Device), mobile subscriber station (Mobile Subscriber Station), access terminal (Access Terminal), mobile terminal (Mobile Terminal), wireless terminal (Wireless Terminal), remote terminal (Remote Terminal), handset (Handset), user agent (User Agent), mobile client (Mobile Client), client (Client) and the like can be used interchangeably.

[0189] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal device. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal device is replaced by the communication between multiple terminal devices (for example, device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it is also possible to set the structure in which the terminal device has all or part of the functions of the access network device. In addition, terms such as "uplink" and "downlink" can also be replaced by terms corresponding to communication between terminal devices (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels or direct channels, and uplinks, downlinks, etc. can be replaced by side links or direct links.

[0190] In some embodiments, the terminal device may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal device.

[0191] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0192] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0193] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0194] FIG1A is a schematic diagram illustrating an architecture of a communication system according to an embodiment of the present disclosure. As shown in FIG1A , the communication system 100 may include a terminal device 101 and a network device 102 .

[0195] In some embodiments, the terminal device 101 may include at least one of a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a vehicle-mounted terminal, a tablet computer, a computer with wireless transceiver function, a road side unit (RSU), a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in smart city, and a wireless terminal device in smart home, but is not limited thereto.

[0196] In some embodiments, the network device 102 may include at least one of an access network device and a core network device.

[0197] In some embodiments, the access network device may be a node or device that accesses the terminal device to the wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0198] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0199] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit (Control Unit). The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0200] In some embodiments, the core network device may be a single device, or may be multiple devices or a group of devices. The core network may include at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0201] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0202] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1A , or a portion thereof, but are not limited thereto. The entities shown in FIG1A are examples. The communication system may include all or part of the entities shown in FIG1A , or may include other entities outside of FIG1A . The number and form of the entities are arbitrary. The entities may be physical or virtual. The connection relationship between the entities is an example. The entities may be connected or disconnected. The connection may be in any manner, whether direct or indirect, and may be wired or wireless.

[0203] The embodiments of the present disclosure may be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G New Radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New Radio Access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.17 (WiMAX (registered trademark)), IEEE 802.18 (WiMAX (registered trademark)), IEEE 802.19 (WiMAX (registered trademark)), IEEE 802.20 (WiMAX (registered trademark)), IEEE 802.21 (WiMAX (registered trademark)), IEEE 802.22 (WiMAX (registered trademark)), IEEE 802.23 (WiMAX (registered trademark)), IEEE 802.24 (WiMAX (registered trademark)), IEEE 802.25 (WiMAX (registered trademark)), IEEE 802.26 (WiMAX (registered trademark)), IEEE 802.27 (WiMAX (registered trademark)), IEEE 802.28 (WiMAX (registered trademark)), IEEE 802.29 (WiMAX (registered trademark)), IEEE 802.30 (WiMAX (registered trademark)), IEEE 802.31 (WiMAX (registered trademark)), IEEE 802.32 (WiMAX (registered trademark)), IEEE 802.33 (WiMAX (registered trademark)), 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0204] In some embodiments of the present disclosure, the terminal device 101 in Figure 1A may include a first terminal 1011 and a second terminal 1012, and the first terminal and the second terminal may communicate with each other via a direct link Sidelink. The manner of Sidelink communication between the first terminal and the second terminal may include any one or more of unicast, multicast or broadcast. Optionally, the direct link may include multiple channels, for example, one or more of channels such as a physical sidelink shared channel (PSSCH) and a physical sidelink control channel (PSCCH). It should be noted that in Figure 1A, the above-mentioned terminal device may also include a third terminal, a fourth terminal or more terminals; the above-mentioned first terminal may be one or more, and the second terminal may also be one or more, and the present disclosure does not limit this.

[0205] In some embodiments, the first terminal may communicate with the network device via a non-direct link, and the non-direct link may include an uplink and / or downlink between the first terminal and the network device. For example, the non-direct link may include one or more channels, for example, it may include one or more of PRACH (Physical Random Access Channel), PUCCH (Physical Uplink Control Channel), PUSCH (Physical Uplink Shared Channel), PDSCH (Physical Downlink Shared Channel), PDCCH (Physical Downlink Control Channel), etc. Similarly, the second terminal may also communicate with the network device via a non-direct link.

[0206] In a direct link communication scenario, in order to perform positioning or ranging of a terminal device, the terminal device is required to send and / or receive a direct link positioning reference signal (Sidelink Positioning Reference Signal, SL PRS).

[0207] In some embodiments, positioning based on the sidelink between terminal devices can include absolute positioning, relative positioning, or ranging. Absolute positioning determines the absolute coordinates of a terminal device, relative positioning determines the coordinates of a terminal device relative to a reference point, and ranging determines the distance and / or angle of a terminal device relative to a reference point. Ranging typically involves only measuring the distance between two terminal devices, while absolute and relative positioning may involve multiple terminal devices participating in positioning.

[0208] Figure 1B is a schematic diagram of a positioning scenario according to an embodiment of the present disclosure. As shown in Figure 1B, in the positioning scenario, the terminal device 101 can measure the direct link positioning reference signal SL PRS sent by multiple road test units RSU through the Sidelink link, and can determine the specific position of the terminal device relative to the RSU. Optionally, the number of RSUs can be greater than or equal to 3. It should be noted that the terminal device in Figure 1B can be any terminal device, such as the first terminal or the second terminal in Figure 1A; the RSU in Figure 1B can be a terminal device, or other devices that assist in providing positioning services.

[0209] In some embodiments, the positioning scenario may support multiple positioning technologies, such as at least one of the following positioning technologies:

[0210] Downlink Time Difference of Arrival (DL-TDOA) positioning method;

[0211] Uplink Time Difference of Arrival (UL-TDOA) positioning method;

[0212] Multi-cell round trip time (Multi-RTT) positioning method;

[0213] Downlink Angle-of-Departure (DL-AoD)

[0214] Uplink Angle of Arrival (UL-AoA);

[0215] Carrier phase positioning method.

[0216] In some embodiments, if the positioning result is not converted into absolute position coordinates based on absolute position information such as GPS from the RSU, the positioning result is relative positioning. Otherwise, it is absolute positioning. The terminal device being positioned can be called the target terminal (target UE), and other terminal devices that support positioning the target terminal can be called anchor terminals (anchor UE).

[0217] In one implementation, if positioning involves only two terminal devices, the two are each other's anchor terminals.

[0218] In one implementation, anchor terminals can be of different types. For example, an RSU-type anchor terminal can be an infrastructure device that can provide positioning services by collaborating with other RSUs. For another example, ordinary terminal devices can also serve as anchor terminals, but they are less likely to assist in providing positioning services with other terminal devices. In addition, some anchor terminals have location information such as GPS, which can assist other UEs in absolute positioning; other anchor terminals may not have GPS or other location information.

[0219] In some embodiments, the protocol used to exchange sidelink positioning messages between two terminal devices can be the Sidelink LTE Positioning Protocol (SLPP). For sidelink positioning, the positioning messages exchanged between the terminal device and the Location Management Function (LMF) can also be SLPP messages. For air interface (UU interface) positioning, the positioning messages exchanged between the terminal device and the LMF can be LPP messages.

[0220] In some embodiments, the transmission of SL PRS may use a dedicated resource pool or a shared resource pool.

[0221] In some embodiments, there may be multiple resource allocation modes for transmitting the SL PRS. For example, the resource allocation mode of the SL PRS may include a first resource allocation mode (scheme 1) and a second resource allocation mode (scheme 2). The first resource allocation mode may be a mode in which the network device allocates resources corresponding to the SL PRS to the terminal device, for example, a resource allocation mode based on scheduling by the network device; the second resource allocation mode may be a resource allocation mode in which the terminal device autonomously selects resources.

[0222] Optionally, in the first resource allocation mode, the wireless resources used to transmit the SL PRS can be allocated by the network device (such as the base station) to the terminal device for use through dynamic grant (Dynamic Grant, DG) or configured grant (Configured Grant, CG).

[0223] In some embodiments, the transmission mode of the SL PRS may include: periodic transmission, aperiodic transmission, or one-shot transmission.

[0224] In some embodiments, for SL PRS resource allocation of the first resource allocation mode (scheme 1), in the case of periodic SL PRS transmission, the terminal device may request the network device for the resources required for SL PRS transmission through an RRC message.

[0225] In some embodiments, SL PRS can be sent using a dedicated receiving resource pool. If a terminal device desires to receive SL PRS, the network device needs to configure the SL PRS receiving resource pool for the terminal device. The terminal device can send indication information to the network device, which can be used to indicate interest in receiving SL PRS.

[0226] FIG2A is a flow chart of an information transmission method according to an embodiment of the present disclosure. The method can be performed by the above-mentioned communication system. As shown in FIG2A , the method may include:

[0227] Step S2101: The terminal device sends instruction information to the network device.

[0228] In some embodiments, the network device may receive indication information. For example, the network device may receive indication information sent by a terminal device. For another example, the network device may also receive indication information sent by other entities.

[0229] In some embodiments, the indication information may be carried by a Radio Resource Control (RRC) message. Optionally, the RRC message may be NR direct link user information (SidelinkUEInformationNR).

[0230] For example, the terminal device may send an RRC message to the network device, with the indication information carried in the RRC message. Optionally, the network device may also receive an RRC message carrying the indication information.

[0231] In some embodiments, the indication information may be used to indicate the transmission status of the direct link positioning reference signal SL PRS desired by the terminal device.

[0232] Optionally, the desired transmission state of the SL PRS may also be referred to as “desired change of the transmission state of the SL PRS” or “desired maintenance of the transmission state of the SL PRS”.

[0233] In one implementation, the SL PRS may be a periodic SL PRS. For example, the transmission mode of the SL PRS of the terminal device may be periodic transmission. Optionally, the transmission mode of the SL PRS of the terminal device may also be aperiodic transmission or one-shot transmission. The transmission mode of the SL PRS of the terminal device may be determined based on the configuration of the network device or the terminal device.

[0234] In this way, the terminal device can flexibly manage the transmission status of the periodically transmitted SL PRS, thereby improving the flexibility of SL PRS status management.

[0235] In some embodiments, the desired SL PRS transmission state may include any one of the following:

[0236] Expect to receive SL PRS;

[0237] Expect to stop receiving SL PRS;

[0238] Request allocation of resources for sending SL PRS;

[0239] Request to release resources used to send SL PRS;

[0240] Expect to send SL PRS;

[0241] It is desired to stop sending SL PRS.

[0242] In some embodiments, the indication information can be used to indicate the expectation of receiving SL PRS. Optionally, the terminal device's expectation of receiving SL PRS may mean that the terminal device is interested in receiving SL PRS. Similarly, the terminal device's expectation of receiving SL PRS may mean that the terminal device requests to receive SL PRS.

[0243] In some embodiments, the indication information can be used to indicate the desire to stop receiving SL PRS. Optionally, the terminal device's desire to stop receiving SL PRS may mean that the terminal device is no longer interested in receiving SL PRS. The terminal device's desire to stop receiving SL PRS may also mean that the terminal device requests to stop receiving SL PRS.

[0244] In some embodiments, the indication information may be used to indicate a request for allocation of resources for sending the SL PRS.

[0245] In some embodiments, the indication information may be used to indicate a request to release resources used to send the SL PRS.

[0246] In some embodiments, the indication information may be used to indicate a desire to send an SL PRS. Optionally, the terminal device's desire to send an SL PRS may mean that the terminal device is interested in sending an SL PRS, or that the terminal device requests to send an SL PRS.

[0247] In some embodiments, the indication information may be used to indicate a desire to stop sending SL PRS. Optionally, the terminal device's desire to stop sending SL PRS may mean that the terminal device is no longer interested in sending SL PRS, or the terminal device may request to stop sending SL PRS.

[0248] In some embodiments, if the terminal device is interested in receiving the SL PRS or needs resources to send the SL PRS, the terminal device may send the above indication information to the network device.

[0249] In this way, the terminal device can flexibly manage the reception and transmission of SL PRS.

[0250] In some embodiments, the above-mentioned resources for sending SL PRS may be dedicated SL PRS resources, which are resources allocated by the network device to the terminal device specifically for SL PRS sending.

[0251] In other embodiments, the above-mentioned resources for sending SL PRS may be resources shared by SL PRS and other signals. For example, the first resource may be a PSSCH resource.

[0252] In some embodiments of the present disclosure, the transmission state of the desired SL PRS may be an expectation to receive the SL PRS, for example, the indication information is used to indicate the expectation to receive the SL PRS. In this way, it can be determined that the terminal device meets the first condition and the indication information is sent. Optionally, the indication information can be sent when it is determined that the terminal device meets the first condition. Optionally, the indication information can be sent when it is determined that the terminal device meets the first condition.

[0253] The first condition may include at least one of the following:

[0254] Determining to perform SL PRS reception according to configuration information, where the configuration information may be upper layer(s) configuration information of the terminal device;

[0255] The terminal device enters the connected state and does not send the indication information, for example, the terminal device has not reported the indication information since the last time it entered the connection;

[0256] After the terminal device has sent the indication information, it connects to a new serving cell, and the serving cell does not provide a system message containing the direct link common configuration sl-ConfigCommonNR;

[0257] The terminal device receives a system message including SL PRS resource configuration information. The system message may be a system information block (SIB), such as SIB12.

[0258] The frequency information on which the terminal device expects to receive the SL PRS is not carried in the indication information that has been sent. Optionally, the frequency information may be a frequency list;

[0259] The frequency information at which the terminal device expects to receive the SL PRS has changed and is different from the frequency information carried in the indication information that has been sent.

[0260] For example, if the terminal device determines to receive SL PRS according to the configuration information, the terminal device can send indication information. For another example, if the indication information last transmitted by the terminal device does not include a frequency list of the terminal device that is interested in receiving SL PRS, the terminal device can send indication information. For another example, if the frequency category of the terminal device that is interested in receiving SL PRS has changed, the terminal device can send indication information. No further details will be given here.

[0261] In one implementation, the configuration information may include frequency information for receiving the SL PRS. For example, a higher layer may provide a receiving frequency, which may be included in the SL frequency list in the SIB12 received from the serving cell, which may be a primary cell (PCell).

[0262] In some embodiments, the indication information may be first indication information, which is used to indicate that the SL PRS is expected to be received. The first indication information may be sent when it is determined that the terminal device meets the first condition. For example, the first indication information may be sent when the SL PRS is expected to be received.

[0263] In some embodiments, the above-mentioned indication information may include at least one piece of frequency information, and the frequency information may be used to determine the frequency at which the terminal device expects to receive the SL PRS.

[0264] In some embodiments of the present disclosure, the transmission state of the desired SL PRS may be a desired stop receiving SL PRS, for example, the indication information is used to indicate a desired stop receiving SL PRS. In this way, it can be determined that the terminal device satisfies the second condition and the indication information is sent. Alternatively, the indication information may be sent when it is determined that the terminal device satisfies the second condition. Alternatively, the indication information may be sent when it is determined that the terminal device satisfies the second condition.

[0265] The second condition may include at least one of the following:

[0266] Determining not to perform SL PRS reception according to configuration information, where the configuration information may also be upper layer(s) configuration information of the terminal device;

[0267] Determine to stop SL PRS reception according to the configuration information.

[0268] For example, if the higher layer no longer configures the UE to receive the SL PRS, the terminal device may send indication information to the network device, where the indication information is used to indicate that the terminal device is no longer interested in receiving the SL PRS.

[0269] In some embodiments, the above-mentioned indication information may include at least one piece of frequency information, and the frequency information may be used to determine the frequency at which the terminal device expects to stop receiving the SL PRS.

[0270] In some embodiments, the indication information may be second indication information, and the second indication information is used to indicate that the terminal device desires to stop receiving the SL PRS. The second indication information may be sent when it is determined that the terminal device satisfies the second condition. For example, the second indication information may be sent when the terminal device desires to stop receiving the SL PRS (or is no longer interested in receiving the SL PRS).

[0271] In some embodiments, the indication information includes the first indication information and the second indication information, and the terminal device may send the second indication information after sending the first indication information. Alternatively, the terminal device may send the first indication information after sending the second indication information.

[0272] Optionally, the first indication information and the second indication information may be the same, for example, different values ​​of the same information field in the indication information may indicate different contents. The first indication information and the second indication information may also be different, for example, different information types or different information fields.

[0273] In some embodiments of the present disclosure, the transmission state of the desired SL PRS includes a request for allocation of resources for sending the SL PRS, for example, the indication information is used to request allocation of resources for sending the SL PRS. In this way, it can be determined that the terminal device meets the third condition and the indication information is sent. Optionally, the indication information can be sent when it is determined that the terminal device meets the third condition. Optionally, the indication information can be sent when it is determined that the terminal device meets the third condition.

[0274] The third condition may include at least one of the following:

[0275] The terminal device's upper layer triggers periodic SL PRS transmission;

[0276] The terminal device enters the connected state and does not send any indication information;

[0277] After the terminal device has sent the indication information, it connects to a new serving cell, and the serving cell does not provide a system message containing the direct link common configuration sl-ConfigCommonNR;

[0278] The terminal device receives a system message including SL PRS resource configuration information;

[0279] The SL PRS sending resource request information of the terminal device is not carried in the indication information that has been sent;

[0280] The resource request information sent by the SL PRS of the terminal device changes and is different from the information carried in the indication information that has been sent.

[0281] In some embodiments, the indication information may be third indication information, and the third indication information is used to request allocation of resources for sending the SL PRS. When it is determined that the terminal device meets the third condition, the third indication information may be sent. For example, the terminal device may send the third indication information when requesting allocation of resources for sending the SL PRS.

[0282] In some embodiments of the present disclosure, the transmission status of the desired SL PRS includes a request to release resources used to send the SL PRS, for example, the indication information is used to request to release resources used to send the SL PRS. In this way, it can be determined that the terminal device meets the fourth condition and the indication information is sent. Optionally, the indication information can be sent when it is determined that the terminal device meets the fourth condition. Optionally, the indication information can be sent when it is determined that the terminal device meets the fourth condition.

[0283] The fourth condition may include at least one of the following:

[0284] Determining to no longer send SL PRS according to configuration information, where the configuration information is high-layer configuration information of the terminal device;

[0285] Determine according to the configuration information that resources for sending the SL PRS are no longer occupied.

[0286] In some embodiments, the indication information may be fourth indication information, and the fourth indication information is used to request the release of resources used to send the SL PRS. When it is determined that the terminal device meets the fourth condition, the fourth indication information may be sent. For example, the terminal device may send the fourth indication information when requesting the release of resources used to send the SL PRS.

[0287] In some embodiments, the above-mentioned indication information may include the above-mentioned third indication information and fourth indication information, and the terminal device may send the fourth indication information after sending the third indication information. Optionally, the terminal device may also send the third indication information after sending the fourth indication information.

[0288] Alternatively, the third indication information and the fourth indication information may be the same. For example, different values ​​of the same information field in the indication information may indicate different contents. The third indication information and the fourth indication information may also be different. For example, they may be different information types or different information fields.

[0289] Similarly, the first indication information, the second indication information, the third indication information and the fourth indication information may be of different information types or different information fields, or may indicate different contents through different values ​​of the same information field in the indication information.

[0290] In some embodiments, the indication information may include at least one first information, and the first information may be used to determine at least one of the following:

[0291] The bandwidth requirement corresponding to the SL PRS, which can be a frequency range, for example, in MHz or KHz; the bandwidth can also be the number of resources, which can be PRBs, RBs, RBGs, REs, REGs, or subcarriers;

[0292] The duration requirement corresponding to SL PRS;

[0293] Comb size requirements for SL PRS;

[0294] The resource set requirement corresponding to the SL PRS, where the resource set may include a correspondence between duration and comb size, for example, the resource set may be a (duration, comb size) set;

[0295] The delay budget or remaining delay budget corresponding to the SL PRS;

[0296] SL PRS positioning service quality QoS information;

[0297] Priority of SL PRS;

[0298] SL PRS transmission period;

[0299] The destination ID of the SL PRS is the ID of the terminal device that receives the SL PRS.

[0300] In some embodiments, the positioning QoS information includes at least one of horizontal accuracy, vertical accuracy, distance accuracy, or angle accuracy of positioning.

[0301] Optionally, the above-mentioned duration requirement may be a duration expressed in a time domain unit. In one implementation, the time domain unit may be a time unit such as microseconds, milliseconds, seconds, etc. For example, the duration requirement may be 10 milliseconds, 1 millisecond, or 0.5 milliseconds. In another implementation, the time domain unit may be a symbol, a slot, a sub-slot, a mini-slot, a subframe, a frame, a radio frame, a symbol, a transmission time interval (TTI), etc. For example, the above-mentioned duration requirement may be a symbol number requirement, such as 10 symbols or 5 symbols. For another example, the above-mentioned resource set may include a correspondence between the number of symbols and the comb size, and the resource set may be a (symbol number, comb size) set.

[0302] In some embodiments, the above-mentioned indication information may include at least one first information, which can be used to determine the characteristic information corresponding to at least one SL PRS. The characteristic information may be at least one of the above-mentioned bandwidth requirements, duration requirements, comb size requirements, resource set requirements, delay budget or remaining delay budget, positioning service quality QoS information, and priority.

[0303] In some embodiments, a first information may correspond to a destination, which may be a terminal device receiving an SL PRS. A destination may receive at least one SL PRS. That is, characteristic information may be indicated for each destination, and the characteristic information corresponding to different destinations may be different or the same. The characteristic information of multiple SL PRSs under the same destination may be the same.

[0304] In other embodiments, one first information may correspond to one SL PRS of one destination. That is, each destination may indicate the above characteristic information per SL PRS, and the characteristic information corresponding to different SL PRSs may be different or the same.

[0305] Optionally, the first information may further include a target identifier and / or an SL PRS identifier, where one target identifier corresponds to one target, and one SL PRS identifier corresponds to one SL PRS.

[0306] In some embodiments, the first information includes an index parameter, which can be used to determine at least one of a bandwidth requirement, a duration requirement, and a comb size requirement.

[0307] In some embodiments, the index parameter may be used to determine a piece of requirement information from a plurality of requirement information, where the piece of requirement information includes at least one of a bandwidth requirement, a duration requirement, and a comb size requirement.

[0308] In some embodiments, the above index parameter may be used to determine demand information in a demand information set, where the demand information set may include a plurality of demand information, and the demand information may include at least one of a bandwidth requirement, a duration requirement, and a comb size requirement.

[0309] For example, a requirement information set may be predefined, where the requirement information set includes at least one piece of requirement information, where one piece of requirement information corresponds to a combination of a bandwidth requirement, a duration requirement, and a comb size requirement.

[0310] For example, the first requirement information set may be defined in a table format, where each row of the table represents a first requirement information, that is, a combination of a bandwidth requirement, a duration requirement, and a comb size requirement.

[0311] In this way, the first information can determine the bandwidth requirement, duration requirement and comb size requirement through the index parameter, thereby saving the data volume of the first information and improving data transmission efficiency.

[0312] Step S2102: The network device sends SL PRS configuration information to the terminal device.

[0313] In some embodiments, the terminal device may receive SL PRS configuration information. For example, the terminal device may receive SL PRS configuration information sent by a network device. For another example, the terminal device may also receive SL PRS configuration information sent by other entities.

[0314] In some embodiments, the SL PRS configuration information can be used to configure the terminal device to change the transmission status of the SL PRS.

[0315] In some embodiments, the SL PRS configuration information may be used to instruct the terminal device to determine the transmission status of the SL PRS.

[0316] In some embodiments, the above indication information received by the network device can be used to indicate the desire to receive SL PRS; the SL PRS configuration information can be used to configure the terminal device to receive SL PRS, for example, the frequency list of the terminal device to receive SL PRS can be configured.

[0317] In some embodiments, the above indication information can be used to indicate a desire to stop receiving SL PRS; the SL PRS configuration information can be used to configure the terminal device to stop receiving SL PRS, for example, the frequency list in which the terminal device no longer receives SL PRS can be configured.

[0318] In some embodiments, the above indication information can be used to indicate a request to allocate resources for sending SL PRS; the SL PRS configuration information can allocate resources for sending SL PRS to the terminal device.

[0319] In some embodiments, the above-mentioned indication information can be used to indicate a request to release resources used to send SL PRS; the SL PRS configuration information can instruct the terminal device to release resources used to send SL PRS.

[0320] Step S2103: The terminal device determines the transmission status of the SL PRS according to the SL PRS configuration information.

[0321] In some embodiments, the SL PRS configuration information may be a response to the above-mentioned indication information, and the content of the SL PRS configuration information may also be different depending on the content indicated by the above-mentioned indication information. For example:

[0322] In some embodiments, the indication information may be used to indicate a desire to receive the SL PRS; the SL PRS configuration information may be used to configure the terminal device to receive the SL PRS, for example, a frequency list for the terminal device to receive the SL PRS may be configured. The terminal device may receive the SL PRS according to the SL PRS configuration information. Optionally, the SL PRS configuration information may also reject the request of the terminal device, for example, rejecting reception of the SL PRS for the terminal device.

[0323] In some embodiments, the indication information may be used to indicate a desire to stop receiving the SL PRS; the SL PRS configuration information may be used to configure the terminal device to stop receiving the SL PRS, for example, a frequency list on which the terminal device no longer receives the SL PRS may be configured. The terminal device may stop receiving the SL PRS according to the SL PRS configuration information. Optionally, the SL PRS configuration information may also reject the request of the terminal device, for example, rejecting to stop receiving the SL PRS for the terminal device.

[0324] In some embodiments, the indication information may be used to indicate a request for allocation of resources for sending an SL PRS; the SL PRS configuration information may allocate resources for sending an SL PRS to a terminal device, and the terminal device may send an SL PRS through the resources. Optionally, the SL PRS configuration information may also reject the request of the terminal device, for example, rejecting the allocation of resources for sending an SL PRS to the terminal device.

[0325] In some embodiments, the indication information may be used to indicate a request to release resources used to send SL PRS; the SL PRS configuration information may instruct the terminal device to release resources used to send SL PRS, and the terminal device may release the resources and stop sending SL PRS on the resources. Optionally, the SL PRS configuration information may also reject the request of the terminal device, for example, rejecting the release of the resources used by the terminal device to send SL PRS.

[0326] In some embodiments, the indication information may be used to indicate a desire to send an SL PRS; the SL PRS configuration information may instruct the terminal device to send an SL PRS and allocate resources for sending the SL PRS to the terminal device, through which the terminal device may send the SL PRS. Optionally, the SL PRS configuration information may also reject the terminal device's request to send an SL PRS.

[0327] In some embodiments, the indication information may be used to indicate a desire to stop sending the SL PRS; the SL PRS configuration information may instruct the terminal device to stop sending the SL PRS and instruct the terminal device to release resources used to send the SL PRS. The terminal device may release the resources and stop sending the SL PRS on the resources. Optionally, the SL PRS configuration information may also reject the terminal device's request to stop sending the SL PRS.

[0328] The method involved in the embodiments of the present disclosure may include at least one of the above steps S2101 to S2103. For example, step S2101 can be implemented as an independent embodiment, step S2103 can be implemented as an independent embodiment, steps S2101+S2102 can be implemented as an independent embodiment, steps S2101+S2103 can be implemented as an independent embodiment, and steps S2102+S2103 can be implemented as an independent embodiment, but the present invention is not limited thereto.

[0329] In some embodiments, the above steps S2101 to S2103 can be executed in a swapped order or simultaneously.

[0330] In some embodiments, the above steps S2101 to S2103 are all optional steps.

[0331] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2A .

[0332] Using the above method, the terminal device can indicate the desired SL PRS transmission status based on the indication information, such as at least one of sending, receiving, stopping receiving, stopping sending, applying for resources, and releasing resources, thereby improving the flexibility of SL PRS management.

[0333] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codeword", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0334] In some embodiments, terms such as "uplink", "uplink", "physical uplink" can be interchangeable with each other, and terms such as "downlink", "downlink", "physical downlink" can be interchangeable with each other, and terms such as "side", "sidelink", "side communication", "sidelink communication", "direct connection", "direct link", "direct communication", "direct link communication" can be interchangeable with each other.

[0335] In some embodiments, the terms "downlink control information (DCI)", "downlink (DL) assignment", "DL DCI", "uplink (UL) grant", "UL DCI" and the like may be used interchangeably.

[0336] In some embodiments, terms such as "Physical Downlink Shared Channel (PDSCH)", "DL data", "DL signal", "DL message", "downlink data", "downlink signal", "downlink message" can be replaced with each other, and terms such as "Physical Uplink Shared Channel (PUSCH)", "UL data", "UL signal", "UL message", "uplink data", "uplink signal", "uplink message" can be replaced with each other.

[0337] In some embodiments, terms such as "resource block (RB)", "physical resource block (PRB)", "sub-carrier group (SCG)", "resource element group (REG)", "PRB pair", "RB pair", "resource element (RE)", and "sub-carrier" can be used interchangeably.

[0338] In some embodiments, terms such as "frame", "radio frame", "subframe", "slot", "sub-slot", "mini-slot", "symbol", "symbol", and "transmission time interval (TTI)" can be used interchangeably.

[0339] In some embodiments, "obtain", "get", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

[0340] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0341] FIG2B is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG2B , the embodiment of the present disclosure relates to an information transmission method, which can be executed by a communication system and can include:

[0342] Step S2201: The terminal device sends instruction information to the network device.

[0343] The optional implementation of step S2201 can refer to the optional implementation of step S2101 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0344] In some embodiments, the embodiment shown in FIG. 2B may also be combined with any one or more steps in the embodiment shown in FIG. 2A to form a new embodiment.

[0345] The above method is used to send indication information, which is used to indicate the transmission status of the direct link positioning reference signal SL PRS expected by the terminal device. In this way, the terminal device can indicate the expected transmission status of the SL PRS based on the indication information, thereby improving the flexibility of SL PRS management.

[0346] FIG3A is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG3A , the embodiment of the present disclosure relates to an information transmission method, which can be executed by a terminal device. The method may include:

[0347] Step S3101: Send instruction information.

[0348] The optional implementation of step S3101 can refer to the optional implementation of step S2101 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0349] In some embodiments, the terminal device may send the indication information to the network device, but is not limited thereto. The terminal device may also send the indication information to other entities.

[0350] Step S3102: Obtain SL PRS configuration information.

[0351] The optional implementation of step S3102 can refer to the optional implementation of step S2102 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0352] In some embodiments, the terminal device may receive SL PRS configuration information sent by a network device, but is not limited thereto. The terminal device may also receive SL PRS configuration information sent by other entities.

[0353] In some embodiments, the terminal device may obtain SL PRS configuration information specified by the protocol.

[0354] In some embodiments, the terminal device may obtain SL PRS configuration information from upper layer(s).

[0355] In some embodiments, the terminal device may perform processing to obtain SL PRS configuration information.

[0356] In some embodiments, step S3102 may be omitted, and the terminal device may autonomously implement the functions indicated by the SL PRS configuration information, or the above functions may be default or by default.

[0357] Step S3103: Determine the transmission status of the SL PRS according to the SL PRS configuration information.

[0358] The optional implementation of step S3103 can refer to the optional implementation of step S2103 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0359] The method involved in the embodiments of the present disclosure may include at least one of the above steps S3101 to S3103. For example, step S3101 can be implemented as an independent embodiment, step S3103 can be implemented as an independent embodiment, steps S3101 + S3102 can be implemented as an independent embodiment, steps S3101 + S3103 can be implemented as an independent embodiment, and steps S3102 + S3103 can be implemented as an independent embodiment, but the present invention is not limited thereto.

[0360] In some embodiments, the above steps S3101 to S3103 can be executed in a swapped order or simultaneously.

[0361] In some embodiments, the above steps S3101 to S3103 are all optional steps.

[0362] Using the above method, the terminal device can indicate the desired SL PRS transmission status based on the indication information, such as at least one of sending, receiving, stopping receiving, stopping sending, applying for resources, and releasing resources, thereby improving the flexibility of SL PRS management.

[0363] FIG3B is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG3B , the embodiment of the present disclosure relates to an information transmission method, which can be executed by a terminal device. The method may include:

[0364] Step S3201: Send instruction information.

[0365] The optional implementation of step S3201 can be found in step S2101 of FIG. 2A , the optional implementation of step S3101 of FIG. 3A , and other related parts in the embodiments involved in FIG. 2A and FIG. 3A , which will not be repeated here.

[0366] In some embodiments, the indication information is used to indicate a transmission status of a direct link positioning reference signal SL PRS desired by the terminal device.

[0367] By adopting the above method, the terminal device can indicate the desired SL PRS transmission status based on the indication information, thereby improving the flexibility of SL PRS management.

[0368] In some embodiments, the desired SL PRS transmission status includes any one of the following:

[0369] Expect to receive SL PRS;

[0370] Expect to stop receiving SL PRS;

[0371] Request allocation of resources for sending SL PRS;

[0372] Request to release resources used to send SL PRS;

[0373] Expect to send SL PRS;

[0374] It is desired to stop sending SL PRS.

[0375] In some embodiments, the transmission status of the desired SL PRS is that the SL PRS is expected to be received; and the sending indication information includes:

[0376] Determining that the terminal device meets the first condition, and sending the indication information;

[0377] The first condition includes at least one of the following:

[0378] Determining to perform SL PRS reception according to configuration information, where the configuration information is high-layer configuration information of the terminal device;

[0379] The terminal device enters a connected state and does not send the indication information;

[0380] The terminal device is connected to a new serving cell after sending the indication information, and the serving cell does not provide a system message including the direct link common configuration sl-ConfigCommonNR;

[0381] The terminal device receives a system message, where the system message includes SL PRS resource configuration information;

[0382] The frequency information at which the terminal device expects to receive the SL PRS is not carried in the indication information that has been sent;

[0383] The frequency information at which the terminal device expects to receive the SL PRS has changed and is different from the frequency information carried in the indication information that has been sent.

[0384] In some embodiments, the configuration information includes frequency information for receiving the SL PRS.

[0385] In some embodiments, the desired SL PRS transmission state is a desired stop of receiving the SL PRS; and the sending indication information includes:

[0386] Determining that the terminal device meets the second condition, and sending the indication information;

[0387] The second condition includes determining to no longer perform SL PRS reception based on configuration information, and the configuration information is high-level configuration information of the terminal device.

[0388] In some embodiments, the indication information includes at least one frequency information, and the frequency information is used to determine the frequency at which the terminal device expects to receive the SL PRS.

[0389] In some embodiments, the indication information includes first indication information and second indication information, and sending the indication information includes:

[0390] Sending first indication information, where the first indication information is used to indicate that the terminal device expects to receive SL PRS;

[0391] Send second indication information, where the second indication information is used to indicate that the terminal device expects to stop receiving SL PRS.

[0392] In some embodiments, the desired SL PRS transmission status includes a request for allocation of resources for sending the SL PRS; and the sending indication information includes:

[0393] Determining that the terminal device meets the third condition, and sending the indication information;

[0394] The third condition includes at least one of the following:

[0395] The upper layer of the terminal device triggers periodic SL PRS transmission;

[0396] The terminal device enters a connected state and does not send the indication information;

[0397] The terminal device is connected to a new serving cell after sending the indication information, and the serving cell does not provide a system message including the direct link common configuration sl-ConfigCommonNR;

[0398] The terminal device receives a system message, where the system message includes SL PRS resource configuration information;

[0399] The SL PRS sending resource request information of the terminal device is not carried in the indication information that has been sent;

[0400] The resource request information sent by the SL PRS of the terminal device changes and is different from the information carried in the indication information that has been sent.

[0401] In some embodiments, the desired SL PRS transmission status includes a request to release resources used to send the SL PRS; and the sending indication information includes:

[0402] Determining that the terminal device meets the fourth condition, and sending the indication information;

[0403] The fourth condition includes at least one of the following:

[0404] Determining, according to configuration information, to no longer send the SL PRS, where the configuration information is information configured by a higher layer of the terminal device;

[0405] Determine according to the configuration information that resources for sending the SL PRS are no longer occupied.

[0406] In some embodiments, the indication information includes at least one first information, where the first information is used to determine at least one of the following:

[0407] The bandwidth requirement corresponding to the SL PRS;

[0408] The duration requirement corresponding to the SL PRS;

[0409] The comb size requirements corresponding to the SL PRS;

[0410] The resource set requirement corresponding to the SL PRS, wherein the resource set includes a correspondence between duration and comb size;

[0411] The delay budget or remaining delay budget corresponding to the SL PRS;

[0412] Positioning service quality QoS information of the SL PRS;

[0413] The priority of the SL PRS;

[0414] The transmission period of the SL PRS;

[0415] The target identifier of the SL PRS is the identifier of the terminal device receiving the SL PRS.

[0416] In some embodiments, the first information includes index parameters, and the index parameters are used to determine the bandwidth requirement, the duration requirement, and the comb size requirement.

[0417] In some embodiments, the index parameter is used to determine a piece of requirement information among a plurality of requirement information, where the piece of requirement information includes at least one of the bandwidth requirement, the duration requirement, or the comb size requirement.

[0418] In some embodiments, the positioning QoS information includes at least one of horizontal accuracy, vertical accuracy, distance accuracy or angle accuracy of positioning.

[0419] In some embodiments, the indication information includes third indication information and fourth indication information, and sending the indication information includes:

[0420] Sending third indication information, where the third indication information is used to instruct the terminal device to request allocation of resources for sending the SL PRS;

[0421] Send fourth indication information, where the fourth indication information is used to instruct the terminal device to request the release of resources used to send SL PRS.

[0422] In some embodiments, the indication information is carried via a radio resource control RRC message.

[0423] In some embodiments, the SL PRS is a periodic SL PRS.

[0424] Using the above method, the terminal device can indicate the desired SL PRS transmission status based on the indication information, such as at least one of sending, receiving, stopping receiving, stopping sending, applying for resources, and releasing resources, thereby improving the flexibility of SL PRS management.

[0425] FIG4A is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG4A , the present disclosure embodiment relates to an information transmission method, which can be executed by a network device, and the method includes:

[0426] Step S4101: Obtain instruction information.

[0427] The optional implementation of step S4101 can refer to the optional implementation of step S2101 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0428] In some embodiments, the network device may receive indication information sent by the terminal device, but is not limited thereto. The network device may also receive indication information sent by other entities.

[0429] In some embodiments, the network device may obtain indication information specified by the protocol.

[0430] In some embodiments, the network device may obtain indication information from upper layer(s).

[0431] In some embodiments, the network device may perform processing to obtain the indication information.

[0432] In some embodiments, step S4101 may be omitted, and the network device may autonomously implement the function indicated by the indication information, or the above function may be default or acquiescent.

[0433] Step S4102: Send SL PRS configuration information.

[0434] The optional implementation of step S4102 can refer to the optional implementation of step S2102 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.

[0435] In some embodiments, the network device may send the SL PRS configuration information to the terminal device, but is not limited thereto. The network device may also send the SL PRS configuration information to other entities.

[0436] The method involved in the embodiment of the present disclosure may include at least one of the above steps S4101 to S4102. For example, step S4101 may be implemented as an independent embodiment, and step S4102 may be implemented as an independent embodiment.

[0437] In some embodiments, the above steps S4101 to S4102 can be executed in a swapped order or simultaneously.

[0438] In some embodiments, the above steps S4101 to S4102 are all optional steps.

[0439] By adopting the above method, the transmission status of the desired SL PRS can be indicated based on the indication information, such as at least one of sending, receiving, stopping receiving, stopping sending, applying for resources, and releasing resources, thereby improving the flexibility of SL PRS management.

[0440] FIG4B is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in FIG4B , the embodiment of the present disclosure relates to an information transmission method, which can be executed by a network device. The method may include:

[0441] Step S4201: Obtain instruction information.

[0442] The optional implementation of step S4201 can be found in step S2101 of FIG. 2A , the optional implementation of step S4101 of FIG. 4A , and other related parts in the embodiments involved in FIG. 2A and FIG. 4A , which will not be repeated here.

[0443] In some embodiments, the indication information is used to indicate a transmission status of a direct link positioning reference signal SL PRS desired by the terminal device.

[0444] By adopting the above method, the transmission status of the desired SL PRS can be indicated based on the indication information, thereby improving the flexibility of SL PRS management.

[0445] In some embodiments, the desired SL PRS transmission status includes any one of the following:

[0446] Expect to receive SL PRS;

[0447] Expect to stop receiving SL PRS;

[0448] Request allocation of resources for sending SL PRS;

[0449] Request to release resources used to send SL PRS;

[0450] Expect to send SL PRS;

[0451] It is desired to stop sending SL PRS.

[0452] In some embodiments, the transmission status of the desired SL PRS is that the SL PRS is expected to be received; and the reception indication information includes:

[0453] Determining that the terminal device meets the first condition, and receiving the indication information;

[0454] The first condition includes at least one of the following:

[0455] Determining to perform SL PRS reception according to configuration information, where the configuration information is high-layer configuration information of the terminal device;

[0456] The terminal device enters a connected state and does not send the indication information;

[0457] The terminal device is connected to a new serving cell after sending the indication information, and the serving cell does not provide a system message including the direct link common configuration sl-ConfigCommonNR;

[0458] The terminal device receives a system message, where the system message includes SL PRS resource configuration information;

[0459] The frequency information at which the terminal device expects to receive the SL PRS is not carried in the indication information that has been sent;

[0460] The frequency information at which the terminal device expects to receive the SL PRS has changed and is different from the frequency information carried in the indication information that has been sent.

[0461] In some embodiments, the configuration information includes frequency information for receiving the SL PRS.

[0462] In some embodiments, the desired SL PRS transmission state is a desired stop of receiving the SL PRS; and the reception indication information includes:

[0463] Determining that the terminal device meets the second condition, and receiving the indication information;

[0464] The second condition includes determining to no longer perform SL PRS reception based on configuration information, and the configuration information is high-level configuration information of the terminal device.

[0465] In some embodiments, the indication information includes at least one frequency information, and the frequency information is used to determine the frequency at which the terminal device expects to receive the SL PRS.

[0466] In some embodiments, the indication information includes first indication information and second indication information, and receiving the indication information includes:

[0467] receiving first indication information, where the first indication information is used to indicate that the terminal device expects to receive an SL PRS;

[0468] Receive second indication information, where the second indication information is used to indicate that the terminal device expects to stop receiving SL PRS.

[0469] In some embodiments, the desired SL PRS transmission status includes a request for allocation of resources for sending the SL PRS; and the reception indication information includes:

[0470] Determining that the terminal device meets a third condition, and receiving the indication information;

[0471] The third condition includes at least one of the following:

[0472] The upper layer of the terminal device triggers periodic SL PRS transmission;

[0473] The terminal device enters a connected state and does not send the indication information;

[0474] The terminal device is connected to a new serving cell after sending the indication information, and the serving cell does not provide a system message including the direct link common configuration sl-ConfigCommonNR;

[0475] The terminal device receives a system message, where the system message includes SL PRS resource configuration information;

[0476] The SL PRS sending resource request information of the terminal device is not carried in the indication information that has been sent;

[0477] The resource request information sent by the SL PRS of the terminal device changes and is different from the information carried in the indication information that has been sent.

[0478] In some embodiments, the desired SL PRS transmission status includes a request to release resources used to send the SL PRS; and the reception indication information includes:

[0479] Determining that the terminal device meets the fourth condition, and receiving the indication information;

[0480] The fourth condition includes at least one of the following:

[0481] Determining, according to configuration information, to no longer send the SL PRS, where the configuration information is information configured by a higher layer of the terminal device;

[0482] Determine according to the configuration information that resources for sending the SL PRS are no longer occupied.

[0483] In some embodiments, the indication information includes at least one first information, where the first information is used to determine at least one of the following:

[0484] The bandwidth requirement corresponding to the SL PRS;

[0485] The duration requirement corresponding to the SL PRS;

[0486] The comb size requirements corresponding to the SL PRS;

[0487] The resource set requirement corresponding to the SL PRS, wherein the resource set includes a correspondence between duration and comb size;

[0488] The delay budget or remaining delay budget corresponding to the SL PRS;

[0489] Positioning service quality QoS information of the SL PRS;

[0490] The priority of the SL PRS;

[0491] The transmission period of the SL PRS;

[0492] The target identifier of the SL PRS is the identifier of the terminal device receiving the SL PRS.

[0493] In some embodiments, the first information includes index parameters, and the index parameters are used to determine the bandwidth requirement, the duration requirement, and the comb size requirement.

[0494] In some embodiments, the index parameter is used to determine a piece of requirement information among a plurality of requirement information, where the piece of requirement information includes at least one of the bandwidth requirement, the duration requirement, or the comb size requirement.

[0495] In some embodiments, the positioning QoS information includes at least one of horizontal accuracy, vertical accuracy, distance accuracy or angle accuracy of positioning.

[0496] In some embodiments, the indication information includes third indication information and fourth indication information, and the receiving indication information includes:

[0497] receiving third indication information, where the third indication information is used to instruct the terminal device to request allocation of resources for sending an SL PRS;

[0498] Receive fourth indication information, where the fourth indication information is used to instruct the terminal device to request the release of resources used to send SL PRS.

[0499] In some embodiments, the indication information is carried via a radio resource control RRC message.

[0500] In some embodiments, the SL PRS is a periodic SL PRS.

[0501] In some embodiments, the method further comprises:

[0502] Send SL PRS configuration information; the SL PRS configuration information is used to instruct the terminal device to determine the transmission status of the SL PRS.

[0503] By adopting the above method, the network device can manage the SL PRS transmission status of the terminal device according to the indication information and configuration information, such as at least one of sending, receiving, stopping receiving, stopping sending, applying for resources, and releasing resources, thereby improving the flexibility of SL PRS management.

[0504] Figure 5 is a flow chart of an information transmission method according to an embodiment of the present disclosure. As shown in Figure 5, the embodiment of the present disclosure relates to an information transmission method, which can be performed by a communication system, a terminal device, or a network device. The method may include:

[0505] Step S5101: The terminal device sends instruction information to the network device.

[0506] In some embodiments, if the terminal device is interested in receiving the SL PRS or needs resources to send the SL PRS, the terminal device may send indication information to the network.

[0507] In one implementation, the indication information may be sent via an RRC message. For example, the RRC message may be NR direct link user information (SidelinkUEInformationNR).

[0508] In one implementation, the SL PRS may be a periodic SL PRS.

[0509] In one implementation, resources are required to send the SL PRS as a periodic SL PRS.

[0510] In some embodiments, the indication information may be interest indication information. For example, the terminal device may send the interest indication information received by the SL PRS to the network device, and the triggering condition for triggering the sending of the interest indication information may include a combination of one or more of the following:

[0511] The upper layer configures the terminal device to receive SL PRS or SL positioning;

[0512] If the higher layer provides a receiving frequency, the frequency may be included in the SL frequency list (sl-FreqInfoList) in the SIB12 received from the primary cell PCell;

[0513] The terminal device has not reported SidelinkUEInformationNR since it last entered the connected state;

[0514] After the terminal device has sent the indication information, it connects to a new serving cell, and the serving cell does not provide a system message containing the direct link common configuration sl-ConfigCommonNR;

[0515] The received SIB12 includes the SL PRS resource configuration;

[0516] The last transmitted SidelinkUEInformationNR does not include the frequency list of interest for receiving SL PRS, or the frequency list of interest for receiving SL PRS has changed;

[0517] Any of the above information changes.

[0518] In some embodiments, if the higher layer no longer configures the terminal device to receive the SL PRS, the terminal device indicates to the network device that it is no longer interested in receiving the SL PRS.

[0519] In some embodiments, the indication information may be used to request the SL PRS to send resource configuration or release. For example, the terminal device may request the network device to send the SL PRS to configure or release the resource, and the triggering conditions for triggering the sending of the indication information may include one or more of the following:

[0520] The upper layer triggers periodic SL PRS transmission;

[0521] The terminal device has not reported SidelinkUEInformationNR since it last entered the connected state;

[0522] After the terminal device has sent the indication information, it connects to a new serving cell, and the serving cell does not provide a system message containing the direct link common configuration sl-ConfigCommonNR;

[0523] The SIB12 received by the terminal device includes the SL PRS resource configuration;

[0524] The last transmitted SidelinkUEInformationNR does not include the SL PRS sending resource request list, or the SL PRS sending resource request list has changed.

[0525] In some embodiments, if the higher layer no longer requests the terminal device to send the SL PRS, the terminal device may indicate to the network device that the SL PRS sending resources are no longer needed.

[0526] In some embodiments, the terminal device indicates interest indication information for SL PRS reception to the network device, and the interest indication information may include a frequency list of interest for receiving SL PRS.

[0527] In some embodiments, the terminal device requests SL PRS resource indication information from the network device. The requested SL PRS resource indication information may include an SL PRS transmission resource request list, where the list includes at least one SL PRS transmission resource request. The SL PRS transmission resource request may include one or more of the following:

[0528] Bandwidth or PRB (Physical Resource Block) requirements, where bandwidth can be expressed in MHz / kHz or as the number of subchannels plus the subchannel bandwidth (i.e., the number of PRBs);

[0529] Duration requirement and / or comb size requirement, or a combination of (duration, comb size) requirement;

[0530] Locating QoS information;

[0531] Delay budget or remaining delay budget;

[0532] SL PRS transmission period;

[0533] The destination ID of the SL PRS is the ID of the terminal device that receives the SL PRS.

[0534] In some embodiments, the duration requirement may be a duration expressed in time-domain units. In one implementation, the time-domain unit may be microseconds, milliseconds, seconds, or the like. In another implementation, the time-domain unit may be a symbol, slot, subslot, minislot, subframe, radio frame, symbol, transmission time interval, or the like. For example, the duration requirement may be a symbol number requirement, such as 10 symbols or 5 symbols. For another example, the resource set may include a correspondence between the number of symbols and the comb size, and the resource set may be a (symbol number, comb size) set.

[0535] In some embodiments, the bandwidth or RB requirement, symbol number, and comb size requirement may be indicated in a table, where each row represents a combination of bandwidth or RB requirement, symbol number, and comb size requirement. The indication information may only indicate the index of the selected row in the table.

[0536] In some embodiments, the positioning QoS information may include at least one of horizontal accuracy, vertical accuracy, distance accuracy, or angle accuracy.

[0537] In some embodiments, the above information is indicated per destination.

[0538] In one implementation, each destination may indicate the above information per SL PRS.

[0539] By adopting the above method, the transmission status of the SL PRS of the terminal device can be managed based on the indication information, such as at least one of sending, receiving, stopping receiving, stopping sending, applying for resources, and releasing resources, thereby improving the flexibility of SL PRS management.

[0540] In some embodiments of the present disclosure, a communication system is provided, which may include a terminal device and a network device, wherein the terminal device can execute the information transmission method executed by the terminal device in the aforementioned embodiment of the present disclosure; the network device can execute the information transmission method executed by the network device in the aforementioned embodiment of the present disclosure.

[0541] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal device in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0542] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), and the functions of some or all of the above units or modules are realized by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0543] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of a hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document to implement the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0544] Figure 6A is a structural diagram of a terminal device proposed in an embodiment of the present disclosure. As shown in Figure 6A, the terminal device 101 may include: at least one of a transceiver module 6101, a processing module 6102, etc. In some embodiments, the transceiver module 6101 is configured to send indication information, and the indication information is used to indicate the transmission status of the direct link positioning reference signal SL PRS expected by the terminal device. Optionally, the transceiver module 6101 can be used to execute at least one of the communication steps such as sending and / or receiving (for example, step S2101, step S2102, but not limited to this) performed by the terminal device 101 in any of the above methods, which will not be repeated here. Optionally, the processing module 6102 can be used to execute at least one of the other steps (for example, step S2103, but not limited to this) performed by the terminal device 101 in any of the above methods, which will not be repeated here.

[0545] In some embodiments, the desired SL PRS transmission status includes any one of the following:

[0546] Expect to receive SL PRS;

[0547] Expect to stop receiving SL PRS;

[0548] Request allocation of resources for sending SL PRS;

[0549] Request to release resources used to send SL PRS;

[0550] Expect to send SL PRS;

[0551] It is desired to stop sending SL PRS.

[0552] In some embodiments, the transmission state of the desired SL PRS is the desired reception of the SL PRS; the transceiver module is configured to determine that the terminal device meets the first condition and send the indication information;

[0553] The first condition includes at least one of the following:

[0554] Determining to perform SL PRS reception according to configuration information, where the configuration information is high-layer configuration information of the terminal device;

[0555] The terminal device enters a connected state and does not send the indication information;

[0556] The terminal device is connected to a new serving cell after sending the indication information, and the serving cell does not provide a system message including the direct link common configuration sl-ConfigCommonNR;

[0557] The terminal device receives a system message, where the system message includes SL PRS resource configuration information;

[0558] The frequency information at which the terminal device expects to receive the SL PRS is not carried in the indication information that has been sent;

[0559] The frequency information at which the terminal device expects to receive the SL PRS has changed and is different from the frequency information carried in the indication information that has been sent.

[0560] In some embodiments, the configuration information includes frequency information for receiving the SL PRS.

[0561] In some embodiments, the desired SL PRS transmission state is a desired stop receiving SL PRS; the transceiver module is configured to determine that the terminal device meets the second condition and send the indication information;

[0562] The second condition includes determining to no longer perform SL PRS reception based on configuration information, and the configuration information is high-level configuration information of the terminal device.

[0563] In some embodiments, the indication information includes at least one frequency information, and the frequency information is used to determine the frequency at which the terminal device expects to receive the SL PRS.

[0564] In some embodiments, the indication information includes first indication information and second indication information, and the transceiver module is configured to send the first indication information, wherein the first indication information is used to indicate that the terminal device expects to receive SL PRS; and send the second indication information, wherein the second indication information is used to indicate that the terminal device expects to stop receiving SL PRS.

[0565] In some embodiments, the desired SL PRS transmission status includes a request for allocation of resources for sending the SL PRS; the transceiver module is configured to determine that the terminal device meets a third condition and send the indication information;

[0566] The third condition includes at least one of the following:

[0567] The upper layer of the terminal device triggers periodic SL PRS transmission;

[0568] The terminal device enters a connected state and does not send the indication information;

[0569] The terminal device is connected to a new serving cell after sending the indication information, and the serving cell does not provide a system message including the direct link common configuration sl-ConfigCommonNR;

[0570] The terminal device receives a system message, where the system message includes SL PRS resource configuration information;

[0571] The SL PRS sending resource request information of the terminal device is not carried in the indication information that has been sent;

[0572] The resource request information sent by the SL PRS of the terminal device changes and is different from the information carried in the indication information that has been sent.

[0573] In some embodiments, the desired SL PRS transmission status includes a request to release resources used to send the SL PRS; the transceiver module is configured to determine that the terminal device meets the fourth condition and send the indication information;

[0574] The fourth condition includes at least one of the following:

[0575] Determining, according to configuration information, to no longer send the SL PRS, where the configuration information is information configured by a higher layer of the terminal device;

[0576] Determine according to the configuration information that resources for sending the SL PRS are no longer occupied.

[0577] In some embodiments, the indication information includes at least one first information, where the first information is used to determine at least one of the following:

[0578] The bandwidth requirement corresponding to the SL PRS;

[0579] The duration requirement corresponding to the SL PRS;

[0580] The comb size requirements corresponding to the SL PRS;

[0581] The resource set requirement corresponding to the SL PRS, wherein the resource set includes a correspondence between duration and comb size;

[0582] The delay budget or remaining delay budget corresponding to the SL PRS;

[0583] Positioning service quality QoS information of the SL PRS;

[0584] The priority of the SL PRS;

[0585] The transmission period of the SL PRS;

[0586] The target identifier of the SL PRS is the identifier of the terminal device receiving the SL PRS.

[0587] In some embodiments, the first information includes index parameters, and the index parameters are used to determine the bandwidth requirement, the duration requirement, and the comb size requirement.

[0588] In some embodiments, the index parameter is used to determine a piece of requirement information among a plurality of requirement information, where the piece of requirement information includes at least one of the bandwidth requirement, the duration requirement, or the comb size requirement.

[0589] In some embodiments, the positioning QoS information includes at least one of horizontal accuracy, vertical accuracy, distance accuracy or angle accuracy of positioning.

[0590] In some embodiments, the indication information includes third indication information and fourth indication information, and the transceiver module is configured to send third indication information, wherein the third indication information is used to indicate that the terminal device requests allocation of resources for sending SL PRS; and send fourth indication information, wherein the fourth indication information is used to indicate that the terminal device requests release of resources for sending SL PRS.

[0591] In some embodiments, the indication information is carried via a radio resource control RRC message.

[0592] In some embodiments, the SL PRS is a periodic SL PRS.

[0593] Figure 6B is a structural diagram of a network device proposed in an embodiment of the present disclosure. As shown in Figure 6B, the network device 102 may include: at least one of a transceiver module 6201, a processing module 6202, etc. In some embodiments, the transceiver module 6201 is configured to receive indication information, and the indication information is used to indicate the transmission status of the direct link positioning reference signal SL PRS expected by the terminal device. Optionally, the transceiver module 6201 can be used to execute at least one of the communication steps such as sending and / or receiving (for example, step S2101, step S2102, but not limited to this) performed by the network device 102 in any of the above methods, which will not be repeated here. Optionally, the processing module 6202 can be used to execute at least one of the other steps (for example, step S2103, but not limited to this) performed by the network device 102 in any of the above methods, which will not be repeated here.

[0594] In some embodiments, the desired SL PRS transmission status includes any one of the following:

[0595] Expect to receive SL PRS;

[0596] Expect to stop receiving SL PRS;

[0597] Request allocation of resources for sending SL PRS;

[0598] Request to release resources used to send SL PRS;

[0599] Expect to send SL PRS;

[0600] It is desired to stop sending SL PRS.

[0601] In some embodiments, the transmission state of the desired SL PRS is the desired reception of the SL PRS; the transceiver module is configured to determine that the terminal device meets the first condition and receive the indication information;

[0602] The first condition includes at least one of the following:

[0603] Determining to perform SL PRS reception according to configuration information, where the configuration information is high-layer configuration information of the terminal device;

[0604] The terminal device enters a connected state and does not send the indication information;

[0605] The terminal device is connected to a new serving cell after sending the indication information, and the serving cell does not provide a system message including the direct link common configuration sl-ConfigCommonNR;

[0606] The terminal device receives a system message, where the system message includes SL PRS resource configuration information;

[0607] The frequency information at which the terminal device expects to receive the SL PRS is not carried in the indication information that has been sent;

[0608] The frequency information at which the terminal device expects to receive the SL PRS has changed and is different from the frequency information carried in the indication information that has been sent.

[0609] In some embodiments, the configuration information includes frequency information for receiving the SL PRS.

[0610] In some embodiments, the desired SL PRS transmission state is a desired stop receiving SL PRS; the transceiver module is configured to determine that the terminal device meets the second condition and receive the indication information;

[0611] The second condition includes determining to no longer perform SL PRS reception based on configuration information, and the configuration information is high-level configuration information of the terminal device.

[0612] In some embodiments, the indication information includes at least one frequency information, and the frequency information is used to determine the frequency at which the terminal device expects to receive the SL PRS.

[0613] In some embodiments, the indication information includes first indication information and second indication information, and the transceiver module is configured to receive the first indication information, where the first indication information is used to indicate that the terminal device expects to receive SL PRS; and receive the second indication information, where the second indication information is used to indicate that the terminal device expects to stop receiving SL PRS.

[0614] In some embodiments, the desired SL PRS transmission status includes a request for allocation of resources for sending the SL PRS; the transceiver module is configured to determine that the terminal device meets a third condition and receive the indication information;

[0615] The third condition includes at least one of the following:

[0616] The upper layer of the terminal device triggers periodic SL PRS transmission;

[0617] The terminal device enters a connected state and does not send the indication information;

[0618] The terminal device is connected to a new serving cell after sending the indication information, and the serving cell does not provide a system message including the direct link common configuration sl-ConfigCommonNR;

[0619] The terminal device receives a system message, where the system message includes SL PRS resource configuration information;

[0620] The SL PRS sending resource request information of the terminal device is not carried in the indication information that has been sent;

[0621] The resource request information sent by the SL PRS of the terminal device changes and is different from the information carried in the indication information that has been sent.

[0622] In some embodiments, the desired SL PRS transmission status includes a request to release resources used to send the SL PRS; the transceiver module is configured to determine that the terminal device meets the fourth condition and receive the indication information;

[0623] The fourth condition includes at least one of the following:

[0624] Determining, according to configuration information, to no longer send the SL PRS, where the configuration information is information configured by a higher layer of the terminal device;

[0625] Determine according to the configuration information that resources for sending the SL PRS are no longer occupied.

[0626] In some embodiments, the indication information includes at least one first information, where the first information is used to determine at least one of the following:

[0627] The bandwidth requirement corresponding to the SL PRS;

[0628] The duration requirement corresponding to the SL PRS;

[0629] The comb size requirements corresponding to the SL PRS;

[0630] The resource set requirement corresponding to the SL PRS, wherein the resource set includes a correspondence between duration and comb size;

[0631] The delay budget or remaining delay budget corresponding to the SL PRS;

[0632] Positioning service quality QoS information of the SL PRS;

[0633] The priority of the SL PRS;

[0634] The transmission period of the SL PRS;

[0635] The target identifier of the SL PRS is the identifier of the terminal device receiving the SL PRS.

[0636] In some embodiments, the first information includes index parameters, and the index parameters are used to determine the bandwidth requirement, the duration requirement, and the comb size requirement.

[0637] In some embodiments, the index parameter is used to determine a piece of requirement information among a plurality of requirement information, where the piece of requirement information includes at least one of the bandwidth requirement, the duration requirement, or the comb size requirement.

[0638] In some embodiments, the positioning QoS information includes at least one of horizontal accuracy, vertical accuracy, distance accuracy or angle accuracy of positioning.

[0639] In some embodiments, the indication information includes third indication information and fourth indication information, and the transceiver module is configured to receive third indication information, wherein the third indication information is used to indicate that the terminal device requests allocation of resources for sending SL PRS; and receive fourth indication information, wherein the fourth indication information is used to indicate that the terminal device requests release of resources for sending SL PRS.

[0640] In some embodiments, the transceiver module is further configured to send SL PRS configuration information; the SL PRS configuration information is used to instruct the terminal device to determine the transmission status of the SL PRS.

[0641] In some embodiments, the indication information is carried via a radio resource control RRC message.

[0642] In some embodiments, the SL PRS is a periodic SL PRS.

[0643] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0644] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0645] Figure 7A is a schematic diagram of the structure of a communication device 7100 proposed in an embodiment of the present disclosure. Communication device 7100 can be a network device (e.g., an access network device, a core network device, etc.), or a terminal device (e.g., a user device, etc.). It can also be a chip, chip system, or processor that supports a network device to implement any of the above methods, or a chip, chip system, or processor that supports a terminal device to implement any of the above methods. Communication device 7100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0646] As shown in Figure 7A, the communication device 7100 includes one or more processors 7101. The processor 7101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process the communication protocol and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. Optionally, the communication device 7100 can be used to perform any of the above methods. Optionally, one or more processors 7101 are used to call instructions to enable the communication device 7100 to perform any of the above methods.

[0647] In some embodiments, the communication device 7100 may further include one or more transceivers 7102. When the communication device 7100 includes one or more transceivers 7102, the transceiver 7102 may perform at least one of the communication steps such as sending and / or receiving in the above method (for example, step S2101 and step S2102, but not limited thereto), and the processor 7101 may perform at least one of the other steps (for example, step S2103, but not limited thereto).

[0648] In some embodiments, a transceiver may include a receiver and / or a transmitter. The receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, and interface may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0649] In some embodiments, the communication device 7100 further includes one or more memories 7103 for storing data. Alternatively, all or part of the memories 7103 may be located outside the communication device 7100. In alternative embodiments, the communication device 7100 may include one or more interface circuits 7104. Optionally, the interface circuits 7104 are connected to the memories 7103 and may be configured to receive data from the memories 7103 or other devices, or to send data to the memories 7103 or other devices. For example, the interface circuits 7104 may read data stored in the memories 7103 and send the data to the processor 7101.

[0650] The communication device 7100 described in the above embodiment may be a network device or a terminal device, but the scope of the communication device 7100 described in the present disclosure is not limited thereto, and the structure of the communication device 7100 may not be limited by FIG. 7A. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0651] 7B is a schematic diagram of the structure of a chip 7200 proposed in an embodiment of the present disclosure. If the communication device 7100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 7200 shown in FIG7B , but the present disclosure is not limited thereto.

[0652] The chip 7200 includes one or more processors 7201 , and the chip 7200 is configured to execute any of the above methods.

[0653] In some embodiments, chip 7200 further includes one or more interface circuits 7204. Alternatively, the terms interface circuit, interface, and transceiver pins may be used interchangeably. In some embodiments, chip 7200 further includes one or more memories 7203 for storing data. Alternatively, all or part of memories 7203 may be located external to chip 7200.

[0654] Optionally, the interface circuit 7204 is connected to the memory 7203. The interface circuit 7204 can be used to receive data from the memory 7203 or other devices, and the interface circuit 7204 can be used to send data to the memory 7203 or other devices. For example, the interface circuit 7204 can read data stored in the memory 7203 and send the data to the processor 7201.

[0655] In some embodiments, the interface circuit 7204 performs at least one of the communication steps (e.g., step S2101 and step S2102, but not limited thereto) in the above method. The interface circuit 7204 performing the communication steps (e.g., step S2101 and step S2102, but not limited thereto) in the above method, for example, means that the interface circuit 7204 performs data exchange between the processor 7201, chip 7200, memory 7203, or transceiver device. In some embodiments, the processor 7201 may perform at least one of the other steps (e.g., step S2103, but not limited thereto).

[0656] The modules and / or devices described in various embodiments, such as virtual devices, physical devices, and chips, can be arbitrarily combined or separated according to circumstances. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0657] The embodiments of the present disclosure further provide a storage medium having instructions stored thereon. When the instructions are executed on the communication device 7100, the communication device 7100 executes any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto, and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto, and may also be a temporary storage medium.

[0658] The present disclosure also provides a program product, which, when executed by the communication device 7100, enables the communication device 7100 to perform any of the above methods. Optionally, the program product may be a computer program product.

[0659] The embodiments of the present disclosure also provide a computer program, which, when executed on a computer, enables the computer to execute any one of the above methods.

Claims

1. An information transmission method, characterized in that: Executed by a terminal device, the method includes: Send indication information, where the indication information is used to indicate the transmission status of the direct link positioning reference signal SL PRS expected by the terminal device.

2. The method according to claim 1, characterized in that The desired SL PRS transmission status includes any one of the following: Expect to receive SL PRS; Expect to stop receiving SL PRS; Request allocation of resources for sending SL PRS; Request to release the resources used to send SL PRS; Expect to send SL PRS; It is desired to stop sending SL PRS.

3. The method according to claim 1, characterized in that The transmission state of the expected SL PRS is that the SL PRS is expected to be received; and the sending indication information includes: Determining that the terminal device meets the first condition, and sending the indication information; The first condition includes at least one of the following: Determine to perform SL PRS reception according to configuration information, where the configuration information is high-level configuration information of the terminal device; The terminal device enters a connected state and does not send the indication information; The terminal device is connected to a new serving cell after sending the indication information, and the serving cell does not provide a system message including the direct link common configuration sl-ConfigCommonNR; The terminal device receives a system message, where the system message includes SL PRS resource configuration information; The frequency information at which the terminal device expects to receive the SL PRS is not carried in the indication information that has been sent; The frequency information at which the terminal device expects to receive the SL PRS has changed and is different from the frequency information carried in the indication information that has been sent.

4. The method according to claim 3, characterized in that The configuration information includes frequency information for receiving the SL PRS.

5. The method according to claim 1, characterized in that The expected SL PRS transmission state is that it is expected to stop receiving the SL PRS; and the sending indication information includes: Determining that the terminal device meets the second condition, and sending the indication information; The second condition includes determining to stop receiving SL PRS according to configuration information, and the configuration information is high-level configuration information of the terminal device.

6. The method according to any one of claims 3 to 5, characterized in that The indication information includes at least one frequency information, and the frequency information is used to determine the frequency at which the terminal device expects to receive the SL PRS.

7. The method according to claim 1, characterized in that The indication information includes first indication information and second indication information, and the sending indication information includes: Sending first indication information, where the first indication information is used to indicate that the terminal device expects to receive the SL PRS; Send second indication information, where the second indication information is used to indicate that the terminal device expects to stop receiving SL PRS.

8. The method according to claim 1, characterized in that The desired SL PRS transmission status includes requesting allocation of resources for sending the SL PRS; and the sending indication information includes: Determining that the terminal device satisfies a third condition, and sending the indication information; The third condition includes at least one of the following: The high layer of the terminal device triggers periodic SL PRS sending; The terminal device enters a connected state and does not send the indication information; The terminal device is connected to a new serving cell after sending the indication information, and the serving cell does not provide a system message including the direct link common configuration sl-ConfigCommonNR; The terminal device receives a system message, where the system message includes SL PRS resource configuration information; The SL PRS sending resource request information of the terminal device is not carried in the indication information that has been sent; The resource request information sent by the SL PRS of the terminal device changes and is different from the information carried in the indication information that has been sent.

9. The method according to claim 1, characterized in that: The desired SL PRS transmission status includes a request to release resources used to send the SL PRS; the sending indication information includes: Determining that the terminal device meets the fourth condition, and sending the indication information; The fourth condition includes at least one of the following: Determine according to configuration information that SL PRS is no longer sent, where the configuration information is information of a high-level configuration of the terminal device; Determine according to the configuration information that resources for sending the SL PRS are no longer occupied.

10. The method according to claim 8 or 9, characterized in that: The indication information includes at least one first information, and the first information is used to determine at least one of the following: The bandwidth requirement corresponding to the SL PRS; The duration requirement corresponding to the SL PRS; The comb size requirements corresponding to the SL PRS; The resource set requirement corresponding to the SL PRS, the resource set including the correspondence between the duration and the comb size; The delay budget or remaining delay budget corresponding to the SL PRS; Positioning service quality QoS information of the SL PRS; The priority of the SL PRS; The transmission period of the SL PRS; The target identifier of the SL PRS is the identifier of the terminal device receiving the SL PRS.

11. The method according to claim 10, characterized in that The first information includes index parameters, and the index parameters are used to determine the bandwidth requirement, the duration requirement, and the comb size requirement.

12. The method according to claim 11, characterized in that The index parameter is used to determine one piece of demand information among multiple pieces of demand information, where the one piece of demand information includes at least one of the bandwidth requirement, the duration requirement, or the comb size requirement.

13. The method according to any one of claims 10 to 12, characterized in that The positioning QoS information includes at least one of horizontal accuracy, vertical accuracy, distance accuracy or angle accuracy of positioning.

14. The method according to claim 1, characterized in that The indication information includes third indication information and fourth indication information, and the sending indication information includes: Sending third indication information, where the third indication information is used to instruct the terminal device to request allocation of resources for sending the SL PRS; Send fourth indication information, where the fourth indication information is used to instruct the terminal device to request to release resources used to send SL PRS.

15. The method according to any one of claims 1 to 14, characterized in that The indication information is carried by a radio resource control RRC message.

16. The method according to any one of claims 1 to 15, characterized in that The SL PRS is a periodic SL PRS.

17. An information transmission method, characterized in that: Executed by a network device, the method includes: Receive indication information, where the indication information is used to indicate a transmission status of a direct link positioning reference signal SL PRS expected by a terminal device.

18. The method according to claim 17, characterized in that The desired SL PRS transmission status includes any one of the following: Expect to receive SL PRS; Expect to stop receiving SL PRS; Request allocation of resources for sending SL PRS; Request to release the resources used to send SL PRS; Expect to send SL PRS; It is desired to stop sending SL PRS.

19. The method according to claim 17, characterized in that The transmission state of the expected SL PRS is expected to receive the SL PRS; the reception indication information includes: Determining that the terminal device meets the first condition, and receiving the indication information; The first condition includes at least one of the following: Determine to perform SL PRS reception according to configuration information, where the configuration information is high-level configuration information of the terminal device; The terminal device enters a connected state and does not send the indication information; The terminal device is connected to a new serving cell after sending the indication information, and the serving cell does not provide a system message including the direct link common configuration sl-ConfigCommonNR; The terminal device receives a system message, where the system message includes SL PRS resource configuration information; The frequency information at which the terminal device expects to receive the SL PRS is not carried in the indication information that has been sent; The frequency information at which the terminal device expects to receive the SL PRS has changed and is different from the frequency information carried in the indication information that has been sent.

20. The method according to claim 19, characterized in that The configuration information includes frequency information for receiving the SL PRS.

21. The method according to claim 17, characterized in that The expected transmission state of the SL PRS is that it is expected to stop receiving the SL PRS; and the reception indication information includes: Determining that the terminal device meets the second condition, and receiving the indication information; The second condition includes determining to stop receiving SL PRS according to configuration information, and the configuration information is high-level configuration information of the terminal device.

22. The method according to any one of claims 19 to 21, characterized in that The indication information includes at least one frequency information, and the frequency information is used to determine the frequency at which the terminal device expects to receive the SL PRS.

23. The method according to any one of claims 17 to 21, characterized in that The indication information includes first indication information and second indication information, and the receiving indication information includes: receiving first indication information, where the first indication information is used to indicate that the terminal device expects to receive the SL PRS; Receive second indication information, where the second indication information is used to indicate that the terminal device expects to stop receiving SL PRS.

24. The method according to claim 17, characterized in that The desired SL PRS transmission status includes requesting allocation of resources for sending the SL PRS; and the reception indication information includes: Determining that the terminal device meets the third condition, and receiving the indication information; The third condition includes at least one of the following: The high layer of the terminal device triggers periodic SL PRS sending; The terminal device enters a connected state and does not send the indication information; The terminal device is connected to a new serving cell after sending the indication information, and the serving cell does not provide a system message including the direct link common configuration sl-ConfigCommonNR; The terminal device receives a system message, where the system message includes SL PRS resource configuration information; The SL PRS sending resource request information of the terminal device is not carried in the indication information that has been sent; The resource request information sent by the SL PRS of the terminal device changes and is different from the information carried in the indication information that has been sent.

25. The method according to claim 17, characterized in that The desired SL PRS transmission status includes a request to release resources used to send the SL PRS; the reception indication information includes: Determining that the terminal device meets the fourth condition, and receiving the indication information; The fourth condition includes at least one of the following: Determine according to configuration information that SL PRS is no longer sent, where the configuration information is information of a high-level configuration of the terminal device; Determine according to the configuration information that resources for sending the SL PRS are no longer occupied.

26. The method according to claim 24 or 25, characterized in that The indication information includes at least one first information, and the first information is used to determine at least one of the following: The bandwidth requirement corresponding to the SL PRS; Duration requirement corresponding to the SL PRS; The comb size requirements corresponding to the SL PRS; The resource set requirement corresponding to the SL PRS, the resource set including the correspondence between the duration and the comb size; The delay budget or remaining delay budget corresponding to the SL PRS; Positioning service quality QoS information of the SL PRS; The priority of the SL PRS; The transmission period of the SL PRS; The target identifier of the SL PRS is the identifier of the terminal device receiving the SL PRS.

27. The method according to claim 26, characterized in that The first information includes index parameters, and the index parameters are used to determine the bandwidth requirement, the duration requirement, and the comb size requirement.

28. The method according to claim 27, characterized in that The index parameter is used to determine one piece of demand information among multiple pieces of demand information, where the one piece of demand information includes at least one of the bandwidth requirement, the duration requirement, or the comb size requirement.

29. The method according to any one of claims 26 to 28, characterized in that The positioning QoS information includes at least one of horizontal accuracy, vertical accuracy, distance accuracy or angle accuracy of positioning.

30. The method according to any one of claims 24 to 29, characterized in that The indication information includes third indication information and fourth indication information, and the receiving indication information includes: receiving third indication information, where the third indication information is used to indicate that the terminal device requests allocation of resources for sending the SL PRS; Receive fourth indication information, where the fourth indication information is used to indicate that the terminal device requests to release resources used to send SL PRS.

31. The method according to any one of claims 17 to 30, characterized in that The method further comprises: Send SL PRS configuration information; the SL PRS configuration information is used to instruct the terminal device to determine the transmission status of the SL PRS.

32. The method according to any one of claims 17 to 31, characterized in that The SL PRS is a periodic SL PRS.

33. A terminal device, characterized in that: include: The transceiver module is configured to send indication information, where the indication information is used to indicate the transmission status of the direct link positioning reference signal SL PRS expected by the terminal device.

34. A network device, characterized in that: include: The transceiver module is configured to receive indication information, where the indication information is used to indicate the transmission status of the direct link positioning reference signal SL PRS expected by the terminal device.

35. A communication device, characterized in that: include: one or more processors; The communication device is used to execute the information transmission method described in any one of claims 1 to 16 or claims 17 to 32.

36. A storage medium storing instructions, characterized in that: When the instruction is executed on a communication device, the communication device is caused to execute the information transmission method according to any one of claims 1 to 16 or claims 17 to 32.

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