CN117527171A

CN117527171A - Method for transmitting information and related device

Info

Publication number: CN117527171A
Application number: CN202310410103.4A
Authority: CN
Inventors: 黎超; 薛丽霞
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2022-08-03
Filing date: 2023-04-07
Publication date: 2024-02-06
Also published as: WO2024027629A1

Abstract

The embodiment of the application provides a method for transmitting information and a related device, wherein the method comprises the following steps: the first communication device receives at least one first message, each of the at least one first message comprising first side-link control information and first side-link positioning reference signals; the first communication device determining candidate resources for a second message based on the at least one first side-link control information and/or the at least one first side-link positioning reference signal, the second message comprising the second side-link control information and the second side-link positioning reference signal; the first communication device transmits the second message according to the candidate resource. According to the technical scheme, the resource determination scheme of the second message can be simplified, and the communication equipment can be conveniently realized.

Description

Method for transmitting information and related device

The present application claims priority from China patent office, application No. 202210925952.9, application name "a resource selection method and apparatus" filed on day 08 and 03 of 2022; the present application claims priority from the chinese patent office, application number 202210969018.7, application name "method of transmitting information and related device" filed on 12 th month 2022, the entire contents of which are incorporated herein by reference.

Technical Field

The embodiments of the present application relate to the field of communications technologies, and in particular, to a method for transmitting information and a related apparatus.

Background

In daily life and applications, location information is becoming an increasingly important underlying information. Applications such as navigation services, location based services (location based services, LBS) and the like all require corresponding services to be provided to the user based on the user's location information.

Global navigation satellite systems (global navigation satellite system, GNSS) are currently common schemes for determining location information. The positioning accuracy of GNSS may not meet the requirements of some applications with high accuracy requirements.

To address this problem, the industry has proposed utilizing side-uplink positioning techniques. How to select resources for the transmission side uplink positioning reference signal is a matter of concern in the industry.

Disclosure of Invention

The embodiment of the application provides a method and a related device for transmitting information, which can simplify a resource determination scheme and facilitate the realization of communication equipment.

In a first aspect, an embodiment of the present application provides a method for transmitting information, including: the first communication device receives at least one first message, each of the at least one first message comprising first side-link control information and first side-link positioning reference signals; the first communication device determining candidate resources for a second message according to at least one first side-link control information and/or at least one first side-link positioning reference signal comprised by the at least one first message, the second message comprising second side-link control information and second side-link positioning reference signals; the first communication device transmits the second message according to the candidate resource.

In the above technical solution, the first communication device may determine a candidate resource based on the sidelink control information and the sidelink positioning reference signal received in at least one first message, and send the second sidelink control information and the second sidelink positioning reference signal in a second message according to the candidate resource. In other words, the first communication device determines both resources for transmitting the second-side uplink control information and resources for transmitting the second-side uplink positioning reference signal from the received message. Thus, the resource determination scheme can be simplified, and the communication equipment is convenient to realize.

With reference to the first aspect, in a possible implementation manner of the first aspect, the determining, by the first communication device, candidate resources of the second message according to at least one first side uplink control information and/or at least one first side uplink positioning reference signal included in the at least one first message includes: the first communication device measures M side link control channels and/or M first side link positioning reference signals in a first time window, and determines a first resource, where the first resource includes a resource with signal quality higher than a signal quality threshold, M first side link control information is carried on the M side link control channels, the at least one first side link control information includes the M first side link control information, the at least one first side link positioning reference signal includes the M first side link positioning reference signals, and M is a positive integer; the first communication device determines the candidate resource based on the first resource, the candidate resource being located within a second time window, the second time window being located after the first time window.

In the above technical solution, the first communication device may determine, according to the information received in the previous time window (i.e., the first time window), the resources used for determining the information sent in the subsequent time window (i.e., the second time window). In this way, the first communication device can conduct resource planning in advance.

With reference to the first aspect, in a possible implementation manner of the first aspect, the determining, by the first communication device, the candidate resource according to the first resource includes: the first communication device determines a reservation period according to the M pieces of first side uplink control information; the first communication device determines a second resource according to the first resource and the reserved period, wherein the second resource is positioned in the second time window; the first communication device excludes the second resource to obtain the candidate resource.

In the above technical solution, the first resource is determined according to the information received in the first time window. Thus, the time domain resource corresponding to the first resource is located within the first time window. In the above technical solution, the first communication device may determine the reserved resource (i.e., the second resource) in the second time window by determining the reservation period and the first resource. The first communication device then excludes these resources, the remaining resources being the resources available for transmitting the second message.

With reference to the first aspect, in a possible implementation manner of the first aspect, the second side uplink control information includes indication information of a second reservation period.

With reference to the first aspect, in a possible implementation manner of the first aspect, the second reservation period is determined according to any one of the following manners: high-level indication information of the first communication device; the second side uplink positioning reference signal QoS parameters; a movement speed of the first communication device; a positioning algorithm used by the first communication device; the type of synchronization source; a priority; congestion level on the resource pool.

In the above technical solution, the first communication device determines the reservation period information used by the transmitting side uplink positioning reference signal, so that the second communication device performs effective resource selection according to the acknowledgement. And the accuracy of the reservation period of the positioning reference signal can be improved and the positioning performance can be improved by determining according to the mode.

With reference to the first aspect, in a possible implementation manner of the first aspect, the second reservation period is determined according to at least one of the following manners: the first communication device obtains first configuration information, the configuration information including: mp reservation periods, wherein Mp is a positive integer, and the value or the value set of the Mp reservation periods is determined by any one of the following modes: the second side uplink positioning reference signal QoS parameters; a movement speed of the first communication device; a positioning algorithm used by the first communication device; the type of synchronization source; a priority; congestion level on the resource pool.

In the above technical solution, the first communication device determines the reservation period information used by the transmitting side uplink positioning reference signal, and the value or the value range of the reservation period is determined according to the first configuration information manner, so that the accuracy of the reservation period of the positioning reference signal can be improved, and the positioning performance can be improved.

With reference to the first aspect, in a possible implementation manner of the first aspect, the positioning algorithm includes one or more of the following: positioning algorithm based on round trip delay difference; positioning algorithm based on arrival angle; a positioning algorithm based on the departure angle; carrier phase based positioning algorithms.

In the above technical solution, the first communication device determines the reservation period information used by the transmitting side uplink positioning reference signal, and determines according to the positioning algorithm, so that accuracy of the reservation period of the positioning reference signal can be improved, and positioning performance can be improved.

With reference to the first aspect, in a possible implementation manner of the first aspect, the method further includes: the first communication device determines a second resource according to the first resource, the reservation period, and the second reservation period, wherein the second reservation period is included in the second side uplink control information.

In the above technical solution, the first communication device determines the candidate resources of the transmitting side uplink positioning reference signal according to the first reservation period and the second reservation period, so that the second communication device performs effective resource selection according to the acknowledgement.

With reference to the first aspect, in a possible implementation manner of the first aspect, the measuring, by the first communication device, M side uplink control channels and/or M first side uplink positioning reference signals in a first time window, to determine a first resource includes: the first communication device measures the M first side link positioning reference signals to obtain a first measurement result, wherein the first measurement result comprises M ₁ Signal quality of the reference signal resource, M ₁ The reference signal resources respectively carry M of the M first side link positioning reference signals ₁ First side-link positioning reference signals, M ₁ Is a positive integer less than or equal to M; the first communication device determines the first resource according to a first signal quality threshold and the first measurement result, wherein the first resource comprises a first reference signal resource and a control channel resource corresponding to the first reference signal resource, and the first reference signal resource is the M ₁ And the signal quality of the reference signal resources is higher than that of the first signal quality threshold.

In the above technical solution, the side uplink control channel resource and the reference signal resource have a corresponding relationship. Therefore, the first communication device may only need to measure the signal quality of the sidelink positioning reference signal, screen out the reference signal resources (i.e. the resources that need to be excluded) that the first resource needs to include, and then determine the corresponding sidelink control channel resources according to the screened out reference signal resources and the corresponding relationship, where the sidelink control channel resources are also the resources that need to be excluded. In other words, in the above solution, the first communication device may determine that the first resource needs to include the sidelink control channel resource (i.e. the sidelink control channel resource that needs to be excluded) without measuring the sidelink control channel. In this way, the number of signals (channels) to be measured by the first communication device can be reduced, so that the operation resources of the first communication device are saved, and the burden and the energy consumption of the first communication device are reduced.

With reference to the first aspect, in a possible implementation manner of the first aspect, the excluding, by the first communication device, the second resource, to obtain the candidate resource includes: the first communication device excludes a third resource and the second resource to obtain the candidate resource, wherein the third resource is located in the second time window, the third resource comprises resources of a plurality of side-link control channels, and time-frequency resources of the plurality of side-link control channels are the same.

The technical scheme further excludes the side-link control channel resources with the same time-frequency resources from the second time window. Although the signal quality of the reference signal resources corresponding to the side-link control channel resources is lower than the first signal quality threshold, because the time-frequency resources used by the side-link control channel resources are the same, the information sent on the resources may receive interference. Thus, excluding these resources from the candidate resources may result in more "clean" resources, thereby reducing the occurrence of possible interference when transmitting the second information.

With reference to the first aspect, in a possible implementation manner of the first aspect, the excluding, by the first communication device, the second resource, to obtain the candidate resource includes: the first communication device excludes the second resource to obtain X ₁ Individual side-link control channel resources and X ₂ Reference signal resources, wherein X is ₂ Each of the reference signal resources and the X ₁ At least one of the individual side-link control channel resources corresponds to, and the X ₂ Frequency domain resources of the reference signal resources are different, X ₁ And X ₂ Is a positive integer; the first communication device is according to X ₁ Individual side-link control channel resources and X ₂ Determining the candidate resources including X ₂ Individual side-link control channel resources and the X ₂ Reference signal resource, X ₂ Individual side-link control channel resources and the X ₂ The reference signal resources are in one-to-one correspondence.

In the above technical solution, the sidelink positioning reference signal is sent based on frequency division and code division resources. Thus, it may occur that a plurality of side-link control channel resources correspond to reference signal resources having the same frequency domain resources. Since the side-link positioning reference signal supports both frequency division and code division, the number of optional resources can be increased, thereby increasing the system capacity. For the reference signal resource, a plurality of side-link control channel resources corresponding to each frequency domain resource are reserved, and then a plurality of positioning reference signals with the same frequency domain resource may occur in the second time window. Then transmitting information on these resources may be subject to interference. Therefore, if only one side uplink control channel resource corresponding to the frequency domain resource of the same reference signal resource is reserved, a more "clean" resource can be obtained, thereby reducing the occurrence of interference possibly caused when the second information is transmitted.

With reference to the first aspect, in a possible implementation manner of the first aspect, the measuring, by the first communication device, M side uplink control channels and/or M first side uplink positioning reference signals in a first time window, to determine a first resource includes: the first communication device measures the M side-link control channels to obtain a second measurement result, wherein the second measurement result comprises M of the M side-link control channels ₂ Signal quality of individual side-link control channels, M ₂ Is a positive integer less than or equal to M; the first communication device determining the first resource based on a second signal quality threshold and the second measurement result, the first resource including a first side-link control channel resource and a reference signal resource corresponding to the first side-link control channel resource, the first side-link control channel resource being the M ₂ Resources of the side uplink control channels in the respective side uplink control channels having a signal quality above the second signal quality threshold.

In the above technical solution, the side uplink control channel resource and the reference signal resource have a corresponding relationship. Therefore, the first communication device may only need to measure the signal quality of the side uplink control channel, screen the side uplink control channel resources (i.e. the resources that need to be excluded) that the first resource needs to include, and then determine the corresponding reference signal resources according to the screened side uplink control channel resources and the corresponding relationship, where these reference signal resources are also the resources that need to be excluded. In other words, in the above technical solution, the first communication device may determine the reference signal resources (i.e. the reference signal resources that need to be excluded) that the first resource needs to include without measuring the first side uplink positioning reference signal. In this way, the number of signals (channels) to be measured by the first communication device can be reduced, so that the operation resources of the first communication device are saved, and the burden and the energy consumption of the first communication device are reduced.

With reference to the first aspect, in a possible implementation manner of the first aspect, the excluding, by the first communication device, the second resource, to obtain the candidate resource includes: the first communication device excludes a fourth resource and the second resource to obtain the candidate resource, wherein the fourth resource comprises at least two side-link control channel resources with signal quality lower than the second signal quality threshold, and the time-frequency resources of the at least two side-link control channel resources are the same.

The technical scheme further excludes the side-link control channel resources with the same time-frequency resources from the second time window. Although the signal quality of the side-link control channel resources is below the second signal quality threshold, because the time-frequency resources used by the side-link control channel resources are the same, transmitting information on these resources may receive interference. Thus, excluding these resources from the candidate resources may result in more "clean" resources, thereby reducing the occurrence of possible interference when transmitting the second information.

With reference to the first aspect, in a possible implementation manner of the first aspect, the first communication device measures M side uplink control channels and/or M first side link positioning reference signals in a first time window to determine a first resource, including : the first communication device measures the M side-link control channels and the M first side-link positioning reference signals to obtain a third measurement result, wherein the third measurement result comprises M of the M side-link control channels ₃ Signal quality sum M of individual side-link control channels ₄ Signal quality of the reference signal resource, M ₄ The reference signal resources respectively carry M of the M first side link positioning reference signals ₄ First side-link positioning reference signals, M ₃ And M ₄ Is a positive integer less than or equal to M; the first communication device determines the first resource based on the third measurement, a third signal quality threshold, and a fourth signal quality threshold.

With reference to the first aspect, in a possible implementation manner of the first aspect, the determining, by the first communication device, the first resource according to the third measurement result, the third signal quality threshold, and the fourth signal quality threshold includes: the first communication device according to M ₃ Determining a second side-link control channel resource, the second side-link control channel resource being the M, based on the signal quality of the individual side-link control channels and the third signal quality threshold ₃ Side uplink control channel resources in the respective side uplink control channel having a signal quality above the third signal quality threshold; the first communication device according to M ₄ Determining a second reference signal resource, the second reference signal resource being the M, by signal quality of the reference signal resources and the fourth signal quality threshold ₄ The signal quality of the reference signal resources is higher than the reference signal resource of the fourth signal quality threshold; the first resource determined by the first communication device includes the second side uplink control channel resource and the second reference signal resource.

By utilizing the technical scheme, the first communication equipment can determine the side uplink control channel resources to be eliminated according to one threshold, and determine the reference signal resources to be eliminated according to the other threshold. In other words, the first communication device may exclude side-uplink control channel resources and reference signal resources, respectively, based on two thresholds. Thus, the first communication device can determine the resources to be excluded without knowing the correspondence between the side-link control channel resources and the reference signal resources.

With reference to the first aspect, in a possible implementation manner of the first aspect, the method further includes: the first communication device determining a reference signal resource corresponding to the second side uplink control channel resource; the first resource determined by the first communication device also includes a reference signal resource corresponding to the second side uplink control channel resource.

In the above technical solution, the resources to be excluded determined by the first communication device include not only the reference signal resources and the side uplink control channel resources, where the signal quality is lower than the threshold, but also the reference signal resources corresponding to the side uplink control channel resources. In this way, the resources of the candidate resources that can be used for transmitting the sidelink positioning reference signal are cleaner, thereby reducing the occurrence of possible interference when transmitting the second sidelink positioning reference signal.

With reference to the first aspect, in a possible implementation manner of the first aspect, the method further includes: the first communication device determining a side uplink control channel resource corresponding to the second reference signal resource; the first resource determined by the first communication device also includes a side uplink control channel resource corresponding to the second reference signal resource.

In the above technical solution, the resources to be excluded determined by the first communication device include not only the reference signal resources and the side uplink control channel resources with signal quality lower than the threshold, but also the side uplink control channel resources corresponding to the reference signal resources. In this way, the resources of the candidate resources that can be used for the transmission side downlink control channel are cleaner, thereby reducing the occurrence of interference that may occur when the second side downlink control information is transmitted.

With reference to the first aspect, in a possible implementation manner of the first aspect, the method further includes: the first communication device determining a reference signal resource corresponding to the second side uplink control channel resource; the first communication device determining a side uplink control channel resource corresponding to the second reference signal resource; the first resource determined by the first communication device further includes: a reference signal resource corresponding to the second side uplink control channel resource, and a side uplink control channel resource corresponding to the second reference signal resource.

In the above technical solution, the resources to be excluded determined by the first communication device include not only the reference signal resources and the side uplink control channel resources, where the signal quality is lower than the threshold, but also the side uplink control channel resources corresponding to the reference signal resources and the reference signal resources corresponding to the side uplink control channel resources. In this way, the resources that can be used for the transmission side downlink control channel and the resources that can be used for the transmission side downlink positioning reference signal in the candidate resources are cleaner, so that the occurrence of the situation that interference is likely to occur when the second information is transmitted is reduced.

With reference to the first aspect, in a possible implementation manner of the first aspect, the determining, by the first communication device, a second resource according to the first resource and the reservation period includes: the first communication device determining a first set of resources within the second time window based on the second side uplink control channel resource, a reference signal resource corresponding to the second side uplink control channel resource, and the reservation period; the first communication device determining a second set of resources within the second time window based on the second reference signal resource, a side uplink control channel resource corresponding to the second reference signal resource, and the reservation period; the second resource determined by the first communication device includes the first set of resources and the second set of resources.

With reference to the first aspect, in a possible implementation manner of the first aspect, the method further includes: the first communication device determines that the candidate resource comprises a third set of resources, the third set of resources being determined from the first set of resources and/or the second set of resources, if the number of candidate resources is determined to be less than a candidate resource threshold. The signal quality of the resources contained in the second set of resources of the first set of resources or the resources corresponding to the resources is below a signal quality threshold. Thus, the first set of resources and the second set of resources comprise resources that are more "clean" relative to the resources comprised by the first resources. And preferentially returning the cleaner resources when the number of the candidate resources does not meet the threshold of the candidate resources. In this way, the occurrence of the situation that the second information may be interfered when being transmitted can be reduced.

With reference to the first aspect, in a possible implementation manner of the first aspect, the third resource set is at least one of the following: the first set of resources, the second set of resources, a union of the first set of resources and the second set of resources, or the union of the first set of resources and the second set of resources minus an intersection of the first set of resources and the second set of resources.

With reference to the first aspect, in a possible implementation manner of the first aspect, the measuring, by the first communication device, M side uplink control channels and/or M first side uplink positioning reference signals in a first time window, to determine a first resource includes: the first communication device measures the M side-link control channels to obtain a fourth measurement result, wherein the fourth measurement result comprises M of the M side-link control channels ₅ Signal quality of individual side-link control channels, M ₅ Is a positive integer less than or equal to M; the first communication device determining a third side-link control channel resource and a third reference signal resource based on a fifth signal quality threshold and the fourth measurement result, wherein the third side-link control channel resource is the M ₅ A resource of a side uplink control channel having a signal quality above the fifth signal quality threshold in a side uplink control channel, the third reference signal resource being a reference signal resource corresponding to the third side uplink control channel resource; the first communication device performs a first reference signal resource allocation for M of the M first side uplink positioning reference signals ₆ Measuring the first side link positioning reference signals to obtain M ₆ Signal quality of a plurality of reference signal resources, where M ₆ The M is respectively borne by the reference signal resources ₆ A first side-link positioning reference signal, M ₆ The reference signal resources do not include the third reference signal resource, M ₆ Is a positive integer less than M; the first communication device based on a sixth signal quality threshold and the M ₆ Signal quality of a plurality of reference signal resources, determining a fourth reference signal resource and a fourth side uplink control channel resource, wherein the fourth reference signal resource is the M ₆ A reference signal resource of which the signal quality is higher than the sixth signal quality threshold in the reference signal resources, wherein the fourth side uplink control channel resource is a resource of a side uplink control channel corresponding to the fourth reference signal resource; the first resource determined by the first communication device includes: the third side uplink control channel resource, the third reference signal resource, the fourth side uplink control channel resource, and the fourth reference signal resource.

In the above technical solution, the side uplink control channel resource and the reference signal resource have a corresponding relationship. Therefore, the first communication device may screen out the side uplink control channel resources (i.e. the resources to be excluded) that the first resource needs to include through the signal quality of the side uplink control channel, and then determine the corresponding reference signal resources according to the screened side uplink control channel resources and the correspondence, where these reference signal resources are also the resources to be excluded. When the reference signal resources to be excluded are screened according to another threshold, there is no need to measure the signal quality of the already excluded reference signal resources again. In this way, the number of signals (channels) to be measured by the first communication device can be reduced, so that the operation resources of the first communication device are saved, and the burden and the energy consumption of the first communication device are reduced. In addition, in the above technical solution, the resources to be excluded determined by the first communication device include not only the reference signal resources and the side uplink control channel resources with signal quality higher than the threshold, but also the side uplink control channel resources corresponding to the reference signal resources and the reference signal resources corresponding to the side uplink control channel resources. In this way, the resources that can be used for the transmission side downlink control channel and the resources that can be used for the transmission side downlink positioning reference signal in the candidate resources are cleaner, so that the occurrence of the situation that interference is likely to occur when the second information is transmitted is reduced.

With reference to the first aspect, in a possible implementation manner of the first aspect, the signal quality of an ith reference signal resource in the signal quality of the M reference signal resources is determined according to energy sum of REs occupied by the ith first side link positioning reference signal in the M first side link positioning reference signals, the resources of the ith first side link positioning reference signal in each symbol are T REs in t×n REs, each N REs has one RE occupied by the ith first side link positioning reference signal therein, T is a number greater than zero, N is a positive integer, i=1, …, M.

With reference to the first aspect, in a possible implementation manner of the first aspect, the sidelink control channel resources include frequency domain resources and/or sequence parameters of the sidelink control channel, and the reference signal resources include frequency domain resources and/or sequence parameters of the sidelink positioning reference signal.

With reference to the first aspect, in a possible implementation manner of the first aspect, before the measuring, by the first communication device, M side uplink control channels and/or M first side link positioning reference signals in a first time window, determining a first resource, the method further includes: the first communication device acquires indication information for instructing the first communication device to measure at least one of the following information: the M side uplink control channels, the M first side uplink positioning reference signals.

With reference to the first aspect, in a possible implementation manner of the first aspect, in a case that a total number of resources of a side uplink control channel is greater than a total number of resources of a side uplink positioning reference signal, the indication information is used to instruct the first communication device to measure the M first side uplink positioning reference signals; the indication information is for instructing the first communication device to measure the M side-link control channels in case the total number of resources of the side-link control channels is less than the total number of resources of the side-link positioning reference signals.

With reference to the first aspect, in a possible implementation manner of the first aspect, the total number of resources of the side uplink control channel may be predefined, preconfigured or configured by the network device.

With reference to the first aspect, in a possible implementation manner of the first aspect, the total number of resources of the side uplink positioning reference signal is predefined, preconfigured or configured by the network device.

With reference to the first aspect, in a possible implementation manner of the first aspect, the signal quality threshold (e.g., the first signal quality threshold, the second signal quality threshold, the third signal quality gate, and the fourth signal quality threshold) may be predefined, preconfigured, or configured by the network device.

With reference to the first aspect, in one possible implementation manner of the first aspect. The first communication device may transmit the second side uplink control information and the second side uplink positioning reference signal on the same time slot.

With reference to the first aspect, in a possible implementation manner of the first aspect, the second side uplink control information is located before the second side uplink positioning reference signal.

With reference to the first aspect, in a possible implementation manner of the first aspect, the resource of the first side uplink control information is related to the resource of the first side uplink positioning reference signal.

With reference to the first aspect, in a possible implementation manner of the first aspect, the resource of the first side uplink control information is related to the resource of the first side uplink positioning reference signal, including: the resources of the first side uplink positioning reference signal are indicated by indication information, the first side uplink control information including the indication information; or the resources of the first side-link positioning reference signal are determined by frequency domain resources and/or sequence parameters of the first side-link control information. The first side-link control information may be carried by a side-link control channel. Thus, the first side-uplink control information may be a resource of the side-uplink control channel.

The sequence parameter of the side-link control channel may include a cyclic shift CS value of the side-link control channel, a root sequence index of the side-link control channel, or an orthogonal sequence index of the side-link control channel.

With reference to the first aspect, in a possible implementation manner of the first aspect, the measuring, by the first communication device, the M first side uplink positioning reference signals in the first time window includes: the first communication device determines a first sequence according to the first sequence identifier; the first communication device measures the M first side link positioning reference signals according to the first sequence.

For privacy protection or the like, a communication device transmitting the first side-link positioning reference signal may not want the first communication device to acquire its sequence for generating the first side-link positioning reference signal. Therefore, in the above solution, the first communication device may use a sequence identifier (i.e. the first sequence identifier) to generate a sequence (i.e. the first sequence), and use the sequence to measure the signal quality of the M first side link positioning reference signals. This allows the communication device receiving the first side-link positioning reference signal to perform measurement and exclusion operations when performing resource selection without knowing the sequence used by the first side-link positioning reference signal. So that the privacy of the communication device transmitting the first side-link positioning reference signal is ensured.

With reference to the first aspect, in a possible implementation manner of the first aspect, the first sequence identity is a sequence identity for generating the second side uplink positioning reference signal; alternatively, the first sequence identity is a predefined, preconfigured or signalling configured sequence identity.

In the above-mentioned one aspect, the first communication device may generate the first sequence using a sequence identifier that generates the second side uplink positioning reference signal by itself. In this way, the first communication device can determine from its own transmission point of view whether the resources reserved by other communication devices are suitable for the first communication device to use, thereby selecting low interference resources. In another aspect of the foregoing, the first communication device may determine the first sequence using a predefined, preconfigured or signaling configured sequence identification. The signaling may be sent by the network device or other device. This identification may be an identification that can reflect the signal quality of the first side-link positioning reference signal transmitted by the other communication device. The first communication device may also select low interference resources using the sequence determined by the sequence identity to measure the first side-link positioning reference signal.

With reference to the first aspect, in a possible implementation manner of the first aspect, the measuring, by the first communication device, the M first side uplink positioning reference signals in the first time window includes: the first communication device obtains M second sequence identifiers, the M second sequence identifiers are respectively indicated by M third communication devices, and the M first side uplink positioning reference signals are respectively from the M third communication devices; the first communication device determines an ith second sequence in the M second sequences according to the ith second sequence identifier in the M second sequence identifiers, wherein i=1, … and M; the first communication device measures an i-th one of the M first side-link positioning reference signals according to an i-th one of the M second sequences.

In the above technical solution, the third communication device may select an identifier corresponding to a sequence capable of reflecting the signal quality of the reference signal resource of the transmitted side uplink positioning reference signal, and transmit the sequence identifier to the first communication device. In this way, the signal quality obtained by the first communication device using the sequence determined by the sequence identifier to measure the first side-link positioning reference signal may reflect the signal quality of the reference signal resource of the side-link positioning reference signal transmitted by the third communication device, so that a resource with low interference may be selected.

With reference to the first aspect, in a possible implementation manner of the first aspect, the obtaining, by the first communication device, M second sequence identifications includes: the first communication device determines the M second sequence identifications according to M sequence identification information, where the M sequence identification information is from the M third communication devices, respectively, and an ith sequence identification information in the M sequence identification information includes the ith second sequence identification, or the ith sequence identification information in the M sequence identification information includes an index i, where the index i is an index of the ith second sequence identification in a sequence identification set, and the sequence identification set is predefined, preconfigured or configured by signaling.

In the foregoing aspect, the third communication device may directly send the sequence identifier to the first communication device. In this case, the third communication device may determine a different sequence identity from the sequence identity from which the first side uplink positioning reference signal was generated and transmit the sequence identity to the first communication device. In the above another aspect, the third communication device may send an index corresponding to the sequence identifier to the first communication device. The length of the index may be less than the length of the sequence identity. For example, the sequence identity may be 12 bits in length, and the index may be 4 bits in length. This reduces the signalling length required to indicate sequence identity and thus saves signalling overhead.

With reference to the first aspect, in a possible implementation manner of the first aspect, the measuring, by the first communication device, the M first side uplink positioning reference signals in the first time window includes: the first communication device measures an i-th first side uplink positioning reference signal of the M first side uplink positioning reference signals on a frequency domain resource i within the first time window, wherein the frequency domain resource i is a frequency domain resource where the first communication device receives the i-th first side uplink positioning reference signal, i=1, …, M.

In the above technical solution, the frequency domain resource of the first communication device for measuring the first side link positioning reference signal may be the same as the frequency domain resource for receiving the first side link positioning reference signal, so that the measured signal quality may reflect the signal quality of the reference signal resource for carrying the first side link positioning reference signal, thereby selecting the resource with low interference.

In a second aspect, an embodiment of the present application provides a method for transmitting information, including: the second communication device monitoring a second message at the receiving resource set, the second message including second side uplink control information and a second side uplink positioning reference signal; the second communication device receives the second message on candidate resources determined by at least one first side-link control information and/or at least one first side-link positioning reference signal, the set of received resources comprising the candidate resources.

In the above technical solution, the candidate resources are determined based on the side-uplink control information and the side-uplink positioning reference signal received in the at least one first message. The second communication device may receive the second message at the candidate resource. Thus, the resource determination scheme can be simplified, and the communication equipment is convenient to realize.

With reference to the second aspect, in a possible implementation manner of the second aspect, the candidate resource is determined according to a first resource, where the first resource includes a resource with a signal quality higher than a signal quality threshold.

With reference to the second aspect, in a possible implementation manner of the second aspect, the candidate resource does not include a second resource located within the second time window, where the second resource is determined according to the first resource.

With reference to the second aspect, in a possible implementation manner of the second aspect, the second side uplink control information includes indication information of a second reservation period.

With reference to the second aspect, in a possible implementation manner of the second aspect, the second reservation period is determined according to any one of the following manners: high-level indication information of the first communication device; the second side uplink positioning reference signal QoS parameters; a movement speed of the first communication device; a positioning algorithm used by the first communication device; the type of synchronization source; a priority; congestion level on the resource pool.

In the above technical solution, the reservation period information used by the sidelink positioning reference signal is used to facilitate the effective resource selection by the second communication device according to the acknowledgement. And the accuracy of the reservation period of the positioning reference signal can be improved and the positioning performance can be improved by determining according to the mode.

With reference to the second aspect, in a possible implementation manner of the second aspect, the second reservation period is determined according to at least one of the following manners: the first communication device obtains first configuration information, the configuration information including: mp reservation periods, wherein Mp is a positive integer, and the value or the value set of the Mp reservation periods is determined by any one of the following modes: the second side uplink positioning reference signal QoS parameters; a movement speed of the first communication device; a positioning algorithm used by the first communication device; the type of synchronization source; a priority; congestion level on the resource pool.

In the above technical solution, the reservation period information used by the side uplink positioning reference signal, the value or the value range of the reservation period is determined according to the first configuration information manner, so that the accuracy of the reservation period of the positioning reference signal can be improved, and the positioning performance can be improved.

With reference to the second aspect, in a possible implementation manner of the second aspect, the positioning algorithm includes one or more of the following: positioning algorithm based on round trip delay difference; positioning algorithm based on arrival angle; a positioning algorithm based on the departure angle; carrier phase based positioning algorithms.

According to the technical scheme, the reservation period information used by the side uplink positioning reference signal is determined according to the positioning algorithm, so that the accuracy of the reservation period of the positioning reference signal can be improved, and the positioning performance is improved.

With reference to the second aspect, in a possible implementation manner of the second aspect, the method further includes: the first communication device determines a second resource according to the first resource, the reservation period, and the second reservation period, wherein the second reservation period is included in the second side uplink control information.

With reference to the second aspect, in a possible implementation manner of the second aspect, the first resource includes a first reference signal resource and a second reference signal resource Side-link control channel resources corresponding to a first reference signal resource, the first reference signal resource being M ₁ Reference signal resources, M, of the plurality of reference signal resources having a signal quality above a first signal quality threshold ₁ Is a positive integer, M in the at least one first side-link positioning reference signal ₁ The first side-link positioning reference signals are respectively carried on the M ₁ Reference signal resources.

In the above technical solution, the side uplink control channel resource and the reference signal resource have a corresponding relationship. Therefore, only the reference signal resources (i.e. the resources to be excluded) that need to be included in the first resource need to be screened out, and then the corresponding side-link control channel resources are determined according to the screened-out reference signal resources and the corresponding relationship, and these side-link control channel resources are also the resources to be excluded. In other words, in the above technical solution, the side-link control channel resources (i.e. the side-link control channel resources that need to be excluded) that the first resource needs to include may be determined without measuring the side-link control channel.

With reference to the second aspect, in a possible implementation manner of the second aspect, the candidate resource further does not include a third resource, where the third resource is located in the second time window, and the third resource includes resources of a plurality of side uplink control channels, and time-frequency resources of the plurality of side uplink control channels are the same.

The technical scheme further excludes the side-link control channel resources with the same time-frequency resources from the second time window. Although the signal quality of the reference signal resources corresponding to the side-link control channel resources is lower than the first signal quality threshold, because the time-frequency resources used by the side-link control channel resources are the same, the information sent on the resources may receive interference. Thus, excluding these resources from the candidate resources may result in more "clean" resources, thereby reducing the occurrence of possible interference when receiving the second information.

With reference to the second aspect, in a possible implementation manner of the second aspect, the candidate resourceComprises X ₂ Individual side-link control channel resources and X ₂ Reference signal resource, X ₂ Individual side-link control channel resources and the X ₂ A one-to-one correspondence of the reference signal resources, X ₂ Frequency domain resources of the reference signal resources are different, X ₂ Is a positive integer.

In the above technical solution, the sidelink positioning reference signal is sent based on frequency division and code division resources. Thus, it may occur that a plurality of side-link control channel resources correspond to reference signal resources having the same frequency domain resources. Since the side-link positioning reference signal supports both frequency division and code division, the number of optional resources can be increased, thereby increasing the system capacity. For the reference signal resource, a plurality of side-link control channel resources corresponding to each frequency domain resource are reserved, and then a plurality of positioning reference signals with the same frequency domain resource may occur in the second time window. Then transmitting information on these resources may be subject to interference. Therefore, if only one side uplink control channel resource corresponding to the frequency domain resource of the same reference signal resource is reserved, a more "clean" resource can be obtained, thereby reducing the occurrence of interference possibly caused when receiving the second information.

With reference to the second aspect, in a possible implementation manner of the second aspect, the first resource includes a first side link control channel resource and a reference signal resource corresponding to the first side link control channel resource, and the first side link control channel resource is M ₂ Resources of a side-link control channel having a signal quality above the second signal quality threshold in the respective side-link control channels, M in the at least one first side-link control information ₂ First side-link control information is respectively carried on the M ₂ Individual side-link control channels, M ₂ Is a positive integer.

In the above technical solution, the side uplink control channel resource and the reference signal resource have a corresponding relationship. Therefore, the side-link control channel resources (i.e. the resources to be excluded) that the first resource needs to include can be screened out, and then the corresponding reference signal resources are determined according to the screened side-link control channel resources and the corresponding relation, and these reference signal resources are also the resources to be excluded. In other words, in the above technical solution, the reference signal resources (i.e. the reference signal resources that need to be excluded) that the first resource needs to include can be determined without measuring the first side uplink positioning reference signal.

With reference to the second aspect, in a possible implementation manner of the second aspect, the candidate resource further does not include a fourth resource, where the fourth resource includes at least two side-link control channel resources with signal quality lower than the second signal quality threshold, and time-frequency resources of the at least two side-link control channel resources are the same.

The technical scheme further excludes the side-link control channel resources with the same time-frequency resources from the second time window. Although the signal quality of the side-link control channel resources is below the second signal quality threshold, because the time-frequency resources used by the side-link control channel resources are the same, transmitting information on these resources may receive interference. Thus, excluding these resources from the candidate resources may result in more "clean" resources, thereby reducing the occurrence of possible interference when receiving the second information.

With reference to the second aspect, in a possible implementation manner of the second aspect, the first resource includes a second side uplink control channel resource and a second reference signal resource, and the second side uplink control channel resource is M ₃ Side-uplink control channel resources in the respective side-uplink control channel having a signal quality above a third signal quality threshold, the second reference signal resource being M ₄ Reference signal resources of the plurality of reference signal resources having a signal quality above a fourth signal quality threshold, M in the at least one first side uplink control information ₃ First side-link control information is respectively carried on the M ₃ M in the at least one first side-link positioning reference signal ₄ The first side-link positioning reference signals are respectively carried on the M ₄ Reference signal resource, M ₃ And M ₄ Is a positive integer.

By utilizing the technical scheme, the side uplink control channel resources to be eliminated can be determined according to one threshold, and the reference signal resources to be eliminated can be determined according to the other threshold. In other words, the side-uplink control channel resources and the reference signal resources may be excluded, respectively, according to two thresholds. Thus, the resources to be excluded can be determined without knowing the correspondence between the side-link control channel resources and the reference signal resources.

With reference to the second aspect, in a possible implementation manner of the second aspect, the first resource further includes a reference signal resource corresponding to the second side uplink control channel resource.

In the above technical solution, the determined resources to be excluded include not only the reference signal resources and the side uplink control channel resources with signal quality lower than the threshold, but also the reference signal resources corresponding to the side uplink control channel resources. The candidate resources are thus more "clean" of resources that can be used for transmitting the sidelink positioning reference signal, thereby reducing the occurrence of possible interference when receiving the second sidelink positioning reference signal.

With reference to the second aspect, in a possible implementation manner of the second aspect, the first resource further includes a side uplink control channel resource corresponding to the second reference signal resource.

In the above technical solution, the determined resources to be excluded include not only the reference signal resources and the side uplink control channel resources with signal quality lower than the threshold, but also the side uplink control channel resources corresponding to the reference signal resources. In this way, the resources of the candidate resources that can be used for the transmission side downlink control channel are cleaner, thereby reducing the occurrence of interference that may occur when receiving the second side downlink control information.

With reference to the second aspect, in a possible implementation manner of the second aspect, the first resource further includes: a reference signal resource corresponding to the second side uplink control channel resource, and a side uplink control channel resource corresponding to the second reference signal resource.

In the above technical solution, the determined resources to be excluded include not only the reference signal resources and the side uplink control channel resources with signal quality lower than the threshold, but also the side uplink control channel resources corresponding to the reference signal resources and the reference signal resources corresponding to the side uplink control channel resources. In this way, the resources that can be used for the transmission side downlink control channel and the resources that can be used for the transmission side downlink positioning reference signal in the candidate resources are cleaner, so that the occurrence of the situation that the second information is likely to be interfered when being received is reduced.

With reference to the second aspect, in a possible implementation manner of the second aspect, the second resource includes a first resource set and a second resource set, the first resource set is determined according to the second side uplink control channel resource, a reference signal resource corresponding to the second side uplink control channel resource, and the reservation period, and the second resource set is determined according to the second reference signal resource, a side uplink control channel resource corresponding to the second reference signal resource, and the reservation period.

With reference to the second aspect, in a possible implementation manner of the second aspect, the candidate resource includes a third resource set, where the third resource set is determined according to the first resource set and/or the second resource set.

With reference to the second aspect, in a possible implementation manner of the second aspect, the third resource set is at least one of the following: the first set of resources, the second set of resources, a union of the first set of resources and the second set of resources, or the union of the first set of resources and the second set of resources minus an intersection of the first set of resources and the second set of resources.

With reference to the second aspect, in a possible implementation manner of the second aspect, the first resource includes: a third side-link control channel resource, a third reference signal resource, a fourth side-link control channel resource, and a fourth reference signal resource, wherein the third side-link control channel resource is M ₅ Signal quality in individual side-link control channelsA resource of a side uplink control channel above the fifth signal quality threshold, the third reference signal resource being a reference signal resource corresponding to the third side uplink control channel resource; the first communication device is based on the third reference signal resource, the fourth reference signal resource is M ₆ A reference signal resource of a plurality of reference signal resources having a signal quality above the sixth signal quality threshold, the fourth side uplink control channel resource being a resource of a side uplink control channel corresponding to the fourth reference signal resource, the M ₆ The reference signal resources respectively carry M of the M first side link positioning reference signals ₆ A first side-link positioning reference signal, M ₆ The reference signal resources do not include the third reference signal resource M ₅ Is a positive integer less than or equal to M, which is ₅ Is a positive integer less than or equal to M, M ₆ Is a positive integer less than M.

In the above technical solution, the side uplink control channel resource and the reference signal resource have a corresponding relationship. Therefore, the side-link control channel resources (i.e. the resources to be excluded) to be excluded can be screened out according to a threshold, and then the corresponding reference signal resources are determined according to the screened side-link control channel resources and the corresponding relation, and the reference signal resources are also the resources to be excluded. Thus, when the reference signal resources to be excluded are screened out based on another threshold, it is unnecessary to compare the signal quality from which the reference signal resources have been excluded with the threshold. In addition, besides the reference signal resources and the sidelink control channel resources screened according to the threshold, the resources to be excluded also comprise sidelink control channel resources corresponding to the reference signal resources and reference signal resources corresponding to the sidelink control channel resources. In this way, the resources that can be used for the transmission side downlink control channel and the resources that can be used for the transmission side downlink positioning reference signal in the candidate resources are cleaner, so that the occurrence of the situation that interference is likely to occur when the second information is transmitted is reduced.

With reference to the second aspect, in a possible implementation manner of the second aspect, the signal quality of an ith reference signal resource in the signal quality of the M reference signal resources is determined according to energy sum of REs occupied by the ith first side link positioning reference signal in the M first side link positioning reference signals, the resources of the ith first side link positioning reference signal in each symbol are T REs in t×n REs, and each N REs has one RE occupied by the ith first side link positioning reference signal therein, T is a number greater than zero, N is a positive integer, i=1, …, M.

With reference to the second aspect, in a possible implementation manner of the second aspect, the sidelink control channel resources include frequency domain resources and/or sequence parameters of the sidelink control channel, and the reference signal resources include frequency domain resources and/or sequence parameters of the sidelink positioning reference signal.

With reference to the second aspect, in a possible implementation manner of the second aspect, the signal quality threshold (e.g., the first signal quality threshold, the second signal quality threshold, the third signal quality gate, and the fourth signal quality threshold) may be predefined, preconfigured, or configured by the network device.

With reference to the second aspect, in a possible implementation manner of the second aspect. The first communication device may transmit the second side uplink control information and the second side uplink positioning reference signal on the same time slot.

With reference to the second aspect, in a possible implementation manner of the second aspect, the second side uplink control information is located before the second side uplink positioning reference signal.

With reference to the second aspect, in a possible implementation manner of the second aspect, the resource of the first side uplink control information is related to the resource of the first side uplink positioning reference signal.

With reference to the second aspect, in a possible implementation manner of the second aspect, the resource of the first side uplink control information is related to the resource of the first side uplink positioning reference signal, including: the resources of the first side uplink positioning reference signal are indicated by indication information, the first side uplink control information including the indication information; or the resources of the first side-link positioning reference signal are determined by frequency domain resources and/or sequence parameters of the first side-link control information. The first side-link control information may be carried by a side-link control channel. Thus, the first side-uplink control information may be a resource of the side-uplink control channel.

In a third aspect, embodiments of the present application provide a communication device comprising means for implementing the first aspect or any one of the possible implementations of the first aspect.

In a fourth aspect, embodiments of the present application provide a communication device comprising means for implementing the second aspect or any one of the possible implementations of the second aspect.

In a fifth aspect, embodiments of the present application provide a communication device comprising a processor for executing a computer program stored in a memory to cause the communication device to perform the first aspect or any one of the possible implementations of the first aspect.

With reference to the fifth aspect, in a possible implementation manner of the fifth aspect, the communication apparatus further includes a memory.

In a sixth aspect, embodiments of the present application provide a communication apparatus comprising a processor for executing a computer program stored in a memory to cause the communication apparatus to perform the second aspect or any one of the possible implementations of the second aspect.

With reference to the sixth aspect, in a possible implementation manner of the sixth aspect, the communication apparatus further includes a memory.

In a seventh aspect, embodiments of the present application provide a chip system comprising logic circuitry for coupling with an input/output interface through which data is transferred for performing the first aspect or any one of the possible implementations of the first aspect.

In an eighth aspect, embodiments of the present application provide a chip system comprising logic circuitry for coupling with an input/output interface through which data is transferred for performing the second aspect or any one of the possible implementations of the second aspect.

In a ninth aspect, embodiments of the present application provide a computer readable storage medium storing program code which, when run on a computer, causes the computer to perform any one of the possible implementations as in the first aspect or the first aspect.

In a tenth aspect, embodiments of the present application provide a computer readable storage medium storing program code which, when run on a computer, causes the computer to perform any one of the possible implementations as in the second aspect or the second aspect.

In an eleventh aspect, embodiments of the present application provide a computer program product comprising: computer program code which, when run on a computer, causes the computer to perform any one of the possible implementations as or in the first aspect.

In a twelfth aspect, embodiments of the present application provide a computer program product comprising: computer program code which, when run on a computer, causes the computer to perform as the second aspect or any one of the possible implementations of the second aspect.

Drawings

Fig. 1 is a schematic diagram of an application scenario 100 according to the present application.

Fig. 2 is a schematic diagram of an application scenario 200 to which the present application relates.

Fig. 3 is a diagram illustrating the occupation of frequency domain resources.

Fig. 4 is a schematic diagram of resources occupied by downlink positioning reference signals.

Fig. 5 is a schematic diagram of resources occupied by an uplink positioning reference signal.

Fig. 6 is a schematic flow chart of a method of transmitting information according to an embodiment of the present application.

Fig. 7 is a schematic diagram of a first time window and a second time window.

Fig. 8 is a diagram of code division of side-uplink positioning reference signals with N less than M.

Fig. 9 is a diagram of N being greater than M and the side-uplink control channels being code-divided.

Fig. 10 shows a schematic diagram of resources occupied by a side-downlink control channel and a side-downlink positioning reference signal.

Fig. 11 is a schematic block diagram of a communication device according to an embodiment of the present application.

Fig. 12 is a schematic block diagram of another communication device provided in accordance with an embodiment of the present application.

Fig. 13 is a block diagram of a communication device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

The terminology used in the following embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the specification of this application and the appended claims, the singular forms "a," "an," and "the" are intended to include, for example, "one or more" such forms of expression, unless the context clearly indicates to the contrary. It should also be understood that in the various embodiments herein below, "at least one", "one or more" means one, two or more than two. The "first", "second" and various numerical numbers are merely for ease of description and are not intended to limit the scope of embodiments of the present application. "and/or" used to describe correspondence of corresponding objects, the representation may have three relationships, for example, "a and/or B" may represent: only a, only B and both a and B are present, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. The following sequence numbers of the processes do not mean the sequence of execution, and the execution sequence of the processes should be determined by the functions and internal logic of the processes, and should not constitute any limitation on the implementation process of the embodiments of the present application. For example, in the embodiments of the present application, words "301", "401", "501" and the like are merely identifiers for convenience of description, and do not limit the order of executing steps.

Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the application. In this application, the terms "exemplary" or "such as" and the like are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise. In the embodiments of the present application, the descriptions of "when … …", "in the case of … …", "if" and "if" all refer to that the device will make corresponding processing under some objective condition, and are not limited in time, nor do the devices require that the device have to perform a judging action when implemented, nor are other limitations meant to exist.

In this application, "for indicating" may include for direct indication and for indirect indication. When describing that certain indication information is used for indicating A, the indication information may be included to directly indicate A or indirectly indicate A, and does not represent that the indication information is necessarily carried with A. In the embodiments of the present application, the descriptions of "when … …", "in the case of … …", "if" and "if" all refer to that the device will make corresponding processing under some objective condition, and are not limited in time, nor do the devices require that the device have to perform a judging action when implemented, nor are other limitations meant to exist.

The technical solution of the embodiment of the application can be applied to various communication systems, for example: long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD), universal mobile telecommunications system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wi-MAX) telecommunications system, fifth generation (5) ^th generation, 5G) systems or New Radio (NR), future sixth generation (6 ^th generation, 6G) system, inter-satellite communication, and other non-terrestrial communication network (NTN) systems. The satellite communication system comprises a satellite base station and a terminal device. The satellite base station provides communication services for the terminal device. The satellite base station may also be in communication with the base station. The satellite may be used as a base station or as a terminal device. The satellite can refer to an unmanned aerial vehicle, a hot air balloon, a low-orbit satellite, a medium-orbit satellite, a high-orbit satellite and the like. Satellites may also refer to non-terrestrial base stations or non-terrestrial devices, and the like.

The embodiment of the application can be applied to the terminal equipment. The terminal device may be a device providing voice/data connectivity to a user, e.g., a handheld device having a wireless connection function, a vehicle-mounted device, etc.; devices in the communication of the internet of vehicles, such as communication terminals uploaded by vehicles, road Side Units (RSUs); the communication terminal can be carried on the unmanned plane; but also end devices in internet of things (internet of things, ioT) systems. A terminal device may also be called a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, a user device, or the like.

Exemplary terminal devices include, but are not limited to: a mobile phone, a tablet, a laptop, a palmtop, a mobile internet device (mobile internet device, MID), a wearable device, a Virtual Reality (VR) device, an augmented reality (augmented reality, AR) device, a wireless terminal in industrial control (industrial control), a vehicle-to-evaluation (V2X) terminal, a wireless terminal in unmanned (self-driving), a wireless terminal in teleoperation (remote medical surgery), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation security (transportation safety), a wireless terminal in smart city (smart home), a cellular phone, a cordless phone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal digital assistant, PDA), a handheld device with wireless communication function, a computing device or a processing device connected to a wireless modem, a future evolution device in a land-based network (PLMN) or a mobile application for a wireless application, a mobile application for the particular terminal 36 in the future, or the like.

The device for implementing the function of the terminal device in the embodiment of the present application may be the terminal device; or a device, such as a chip system, capable of supporting the terminal device to implement the function. The device can be installed in or matched with the terminal equipment. In the embodiment of the application, the chip system may be formed by a chip, and may also include a chip and other discrete devices.

The technical scheme in the embodiment of the application can also be applied to access network equipment. The access network device may be a device capable of accessing the terminal device to a wireless network. The access network device may also be referred to as a radio access network (radio access network, RAN) node, a radio access network device, a network device. The access network device may be a base station, for example.

The base station in the embodiment of the present application may cover various names in the following in a broad sense, or may be replaced with the following names, for example: a node B (NodeB), an evolved NodeB (eNB), a next generation NodeB (gNB), a relay station, an access point, a transmission point (transmitting and receiving point, TRP), a transmission point (transmitting point, TP), a master eNodeB (MeNB), a secondary eNodeB (SeNB), a multi-mode radio (multi standard radio, MSR) node, a home base station, a network controller, an access node, a radio node, an Access Point (AP), a transmission node, a transceiver node, a baseband unit (BBU), a radio remote unit (remote radio unit, RRU), an active antenna unit (active antenna unit, AAU), a radio head (remote radio head, RRH), a Central Unit (CU), a Distributed Unit (DU), a positioning node, and the like. The base station may be a macro base station, a micro base station, a relay node, a donor node, or the like, or a combination thereof. A base station may also refer to a communication module, modem, or chip for placement within the aforementioned device or apparatus. The base station may also be a network side device in a 6G network, a device that assumes the function of a base station in a future communication system, or the like. The base stations may support networks of the same or different access technologies.

The base station may be fixed or mobile. For example, a helicopter or drone may be configured to act as a mobile base station, and one or more cells may move according to the location of the mobile base station. In other examples, a helicopter or drone may be configured to function as a device to communicate with another base station.

The location management device is a device for determining location information of the terminal device on the network side. The location management device may be a location management function (location management function, LMF) entity, an evolved serving mobile location center (evolved serving mobile location center, E-SMLC) or other device that may be used to determine location information of the terminal device.

The specific technology and specific device configuration employed by the access network device in the embodiments of the present application are not limited.

For easy understanding of the embodiments of the present application, first, application scenarios applicable to the embodiments of the present application will be described by taking fig. 1 and fig. 2 as examples.

Fig. 1 is a schematic diagram of an application scenario 100 according to the present application. As shown in fig. 1, the application scenario 100 mainly relates to a Sidelink (SL) location scenario, which may include a terminal device 110, a terminal device 120, and a location management device 130. The terminal device 110 may be a terminal device to be positioned, and the terminal device 120 may be other terminal devices or roadside units. It should be appreciated that in this positioning scenario, positioning between terminal device 110 and terminal device 120 may be via a direct communication interface (i.e., a PC5 interface).

In one possible implementation, terminal device 110 has at least two antennas and terminal device 120 also has at least two antennas. The terminal device 120 transmits reference signals to the terminal device 110 on at least two antennas, and the terminal device 110 receives the reference signals on at least two antennas and completes measurement of the reference signals.

In some embodiments, terminal device 110 may determine a position and/or an attitude of terminal device 110 based on the measurement information.

In some embodiments, the terminal device may send the measured information to the terminal device 120, and the terminal device 120 determines the position and/or posture of the terminal device 110 based on the received measurement information.

In some embodiments, the terminal device may send the measured information to the location management device 130, and the location management device 130 determines the location and/or posture of the terminal device 110 based on the received measurement information.

In one possible implementation, terminal device 110 has at least two antennas and terminal device 120 may be comprised of at least two terminal devices. At least two terminal devices included in the terminal device 120 respectively transmit reference signals to the terminal device 110 on the same respective antennas, and the terminal device 110 may receive the reference signals on different antennas and complete measurement of the reference signals.

In one possible implementation, terminal device 110 has at least two antennas and terminal device 120 also has at least two antennas. The terminal device 110 transmits reference signals to the terminal device 120 on at least two antennas, and the terminal device 120 receives the reference signals on at least two antennas and completes measurement of the reference signals.

In some embodiments, terminal device 120 may determine a position and/or an attitude of terminal device 110 based on the measurement information.

In some embodiments, the terminal device 120 may send the measured information to the terminal device 110, and the terminal device 110 determines the position and/or orientation of the terminal device 110 based on the received measurement information.

In one possible implementation, terminal device 110 has at least two antennas and terminal device 120 may be comprised of at least two terminal devices. The terminal device 110 transmits reference signals to the terminal device 120 on at least two antennas, and at least two terminal devices included in the terminal device 120 respectively receive the reference signals on the same antenna and complete measurement of the reference signals.

In some embodiments, either one of the devices included in terminal device 120 or at least two of the devices included in terminal device 120 may determine the position and/or attitude of terminal device 110 based on the measurement information.

In some embodiments, information that may be measured by at least two of the terminal devices 120 may be transmitted to the terminal device 110, and the terminal device 110 determines the position and/or posture of the terminal device 110 based on the received measurement information.

In some embodiments, at least two terminal devices of terminal device 120 may each transmit measured information to location management device 130, where location management device 130 determines the location and/or pose of terminal device 110 based on the received measured information.

In one possible implementation, terminal device 110 has at least two antennas and terminal device 120 has only one antenna. The terminal device 110 transmits reference signals to the terminal device 120 on at least two antennas, and the terminal device 120 receives the reference signals on the same antenna and completes measurement of the reference signals.

Fig. 2 is a schematic diagram of an application scenario 200 to which the present application relates. As shown in fig. 2, the application scenario 200 mainly relates to a cellular positioning scenario, and the application scenario 200 may include a terminal device 210, an access network device 220, and a positioning management device 230. Where terminal device 210 may be a terminal device to be located, access network device 220 may act as an anchor device (i.e., access network device 220 location is known). It should be appreciated that in this positioning scenario, positioning may be performed between terminal device 210 and access network device 220 via a cellular communication interface (i.e., uu interface).

In one possible implementation, terminal device 210 has at least two antennas, as does access network device 220. Access network device 220 may send reference signals to terminal device 210 on at least two antennas, terminal device 210 may send the measured information to location management device 230, and location management device 230 may determine the location and/or posture of terminal device 210 based on the received measurement information. The terminal device 210 may also determine the position and/or posture of the terminal device 210 itself based on the measured information. Terminal device 210 may also send the measured information to access network device 220, and access network device 220 may determine the location and/or pose of terminal device 210 based on the received measured information.

In one possible implementation, terminal device 210 has at least two antennas and access network device 220 may be comprised of at least two access network devices. At least two access network devices included in access network device 220 respectively transmit reference signals to terminal device 210 on the same respective antennas, and terminal device 210 may receive the reference signals on different antennas and complete measurement of the reference signals. The terminal device 210 may transmit the measured information to the positioning management device 230, and the positioning management device 230 determines the position and/or posture of the terminal device 210 according to the received measured information. The terminal device 210 may also determine the position and/or posture of the terminal device 210 itself based on the measured information. Terminal device 210 may also send the measured information to access network device 220, and access network device 220 may determine the location and/or pose of terminal device 210 based on the received measured information.

In one possible implementation, terminal device 210 has at least two antennas, as does access network device 220. Terminal device 210 sends reference signals to access network device 220 on at least two antennas, and access network device 220 receives the reference signals on at least two antennas and performs measurement of the reference signals. Access network device 220 may send the measured information to location management device 230, where location management device 230 determines the location and/or pose of terminal device 210 based on the received measured information. Access network device 220 may also determine the location and/or attitude of terminal device 210 based on the measured information itself. Access network device 220 may also transmit the measured information to terminal device 210, and access network device 220 may determine a location and/or a pose of terminal device 210 based on the received measured information.

In one possible implementation, terminal device 210 has at least two antennas and access network device 220 may be comprised of at least two access network devices. Terminal device 210 sends reference signals to access network device 220 on at least two antennas, and at least two access network devices included in access network device 220 receive the reference signals on the same antenna and complete measurement of the reference signals. Access network device 220 may send the measured information to location management device 230, where location management device 230 determines the location and/or pose of terminal device 210 based on the received measured information. Access network device 220 may also determine the location and/or attitude of terminal device 210 based on the measured information itself. Access network device 220 may also transmit the measured information to terminal device 210, and access network device 220 may determine a location and/or a pose of terminal device 210 based on the received measured information.

In one possible implementation, terminal device 210 has at least two antennas and access network device 220 has only one antenna. Terminal device 210 sends reference signals to access network device 220 on at least two antennas, and access network device 220 receives the reference signals on the same antenna and performs measurement of the reference signals. Access network device 220 may send the measured information to location management device 230, where location management device 230 determines the location and/or pose of terminal device 210 based on the received measured information. Access network device 220 may also determine the location and/or attitude of terminal device 210 based on the measured information itself. Access network device 220 may also transmit the measured information to terminal device 210, and access network device 220 may determine a location and/or a pose of terminal device 210 based on the received measured information.

It should be understood that the multiple antennas related to each device in fig. 1 and fig. 2 may be physical antennas at multiple different locations on the device, or may be virtual antennas formed by movement of one antenna on the device, or a combination of the two, which is not limited in this application. In addition, the application scenarios shown in fig. 1 and 2 are only exemplary illustrations, and should not be construed as limiting the present application.

In order to facilitate better understanding of the technical solutions of the present application, some related technologies related to the technical solutions of the present application are described.

1 signal quality

The signal quality, or the quality of the reference signal, is a physical quantity or measurement index used to measure the strength, energy, power, etc. of the received, detected or estimated signal on a particular resource or reference signal, reflecting the quality of the received signal.

Optionally, the signal quality of the reference signal resource includes any one or more of: any one or more of reference signal received power (reference signal received power, RSRP), reference signal received quality (reference signal received quality, RSRQ), received signal strength indication (received signal strength indication, RSSI), and signal to interference plus noise ratio (signal to interference plus noiserRatio, SINR). SINR refers to the ratio of the strength of the received useful signal to the strength of the received interfering signal (noise and interference). Alternatively, the signal quality may be the quality of the physical layer. For example, the RSRP of the physical layer (e.g., L1-RSRP), the RSRQ of the physical layer (e.g., L1-RSRQ), the RSSI of the physical layer (e.g., L1-RSSI), and the SINR of the physical layer (e.g., L1-SINR), the channel busy ratio (channel busy ratio, CBR), the channel occupancy ratio (channel occupancy ratio, CR), and the like.

Alternatively, the signal quality measured for the side-uplink positioning reference signal (SL-PRS) may be RSSI, RSRP, RSRQ, which may be expressed as: PRS-RSSI, PRS-RSRP or PRS-RSRQ.

Alternatively, the signal quality measured for the physical side-link control channel (physical sidelink control channel, PSCCH) may be RSSI, RSRP, RSRQ, which may be expressed as: PSCCH-RSSI, PSCCH-RSRP or PSCCH-RSRQ.

2 congestion degree

In sidelink, the congestion level typically uses CR or CBR to describe the usage or occupancy of a resource pool.

CBR refers to: at time slot n, the proportion or portion of the measured S-RSSI on the sub-channel in the resource pool on the time slot where the defined measurement window is located exceeds the configured threshold value. Alternatively, the measurement window may have a size of [ n-a, n-b ], a and b being non-negative integers. For example, a=100, b=1.

Alternatively, the CBR may be measured for different channels, resulting in CBR for the corresponding channel. For example, measuring the physical sidelink shared channel (physical sidelink shared channel, PSSCH), then obtaining the CBR of the PSSCH; measuring a physical sidelink control channel (physical sidelink control channel, PSCCH) to obtain CBR of the PSCCH; the physical sidelink control channel (physical sidelink feedback channel, PSFCH) is measured to obtain the CBR of the PSFCH.

For PSSCH, assuming 20 subchannels per slot in a resource pool, there are 100×20=2000 subchannels over a measurement window of 100 slots (slots n-100, n-1) preceding slot n. If the RSSI of 1200 sub-channels over the first 100 slots preceding slot n is measured to exceed the threshold value configured by the network device, then CBR measured at time slot n is 1200/(100×20) =0.6.

For PSCCH, only the locations of the PSCCH and PSCCH resource pools are measured that are not adjacent in the frequency domain. When measured, the PSCCH bandwidth is fixed to 2 PRBs.

CR refers to: at time slot n, the number of channels used for transmission is divided by the total configured subchannels. Alternatively, the number of channels used for transmission may be the sum of the number of sub-channels used for transmission before time slot n and/or the number of sub-channels scheduled for transmission after time slot n. Correspondingly, the number of the total configured subchannels may be in the measurement window before the time slot n or the number of the subchannels in the measurement window after the time slot n. For example, the measurement window before the time slot n may be [ n-a, n-1], the measurement window after the time slot n may be [ n, n+b ], and the total number of configured subchannels is the total number of subchannels configured on [ n-a, n+b ].

For example, for time slot n, assuming a total number of subchannels S1 for transmission over time slot [ n-a, n-1], a total number of subchannels S2 scheduled for transmission over time slot [ n, n+b ], a total number of subchannels S configured over time slot [ n-a, n+b ], CR measured at time slot n is (s1+s2)/S.

It should be noted that the total number of sub-channels scheduled for transmission on [ n+1, n+b ] is actually the sub-channels occupied by future transmissions, which may be counted based on retransmissions indicated by the indication information of the scheduling assignment (scheduling assignment, SA) detected on time slot n.

For example: for time slot n, the total number of subchannels s1=2000 for transmission over time slot n-500, n-1, the total number of subchannels s2=1000 for transmission scheduled over time slot n, n+499, and the total number of subchannels s=1000×20 configured over time slot n-500, n+499, the CR measured at time slot n is (2000+1000)/20000=0.15.

3 quality of service

The quality of service (Quality of service: qoS) includes one or more of priority information, latency information, reliability information, and packet size. QoS is commonly used to characterize the requirements or demands of a service for a business, message or data.

4 priority level

The UE may have transmitted multiple services at the same time, and the priorities of the multiple services may be different. Thus, the priority of a UE may also be described as the traffic priority of the UE. The traffic priority of the UE is specifically the transmission priority of the UE (transmission priority).

Traffic priority, which may also be referred to as L1 priority (L1 priority), physical layer priority, priority carried in the side uplink control information (sidelink control information, SCI), priority corresponding to the physical side shared channel (physical side link share channel, PSSCH) to which the SCI is associated, transmission priority, priority of transmitting the PSSCH, priority for resource selection, priority of the logical channel, and highest-level priority of the logical channel.

The priority levels and the priority values may have some corresponding relationship, for example, the higher the priority level, the lower the corresponding priority value, or the lower the priority level, the lower the corresponding priority value. Taking the example that the priority value corresponding to the higher priority level is lower, the range of the priority value can be an integer of 1-8 or an integer of 0-7. If the range of the priority value is 1-8, the priority value is 1, which represents the highest priority.

5 type of synchronization Source

The synchronization source is a timing reference source used in achieving synchronization. The type of synchronization source includes at least one of: global navigation satellite system GNSS, terminal devices synchronized to said GNSS, network equipment, terminal devices, etc.

6, positioning algorithm

The positioning algorithm is an algorithm for realizing positioning functions such as ranging and angle measurement. Specifically, it may include: positioning algorithm based on round trip delay difference; positioning algorithm based on arrival angle; a positioning algorithm based on the departure angle; carrier phase based positioning algorithms.

7 time domain unit and frequency domain unit

The data or information may be carried by time-frequency resources.

In the time domain, a time-frequency resource may comprise one or more time-domain units (or, alternatively, may be referred to as time units). A time domain unit may be a symbol, or a mini-slot, or a partial slot, or a subframe, or a radio frame, etc.

In the frequency domain, the time-frequency resource may include one or more frequency domain units. A frequency domain unit may be a Resource Element (RE), or a Resource Block (RB), or a sub-channel (sub-channel), or a resource pool (resource pool), or a bandwidth part (BWP), or a carrier, or a channel, or an interlace (RB), etc.

In the embodiment of the present application, a time slot is the most basic time domain resource unit of one transmission. Optionally, the time slot includes: a full slot, a mini slot, a partial slot, or a sub-slot of one or more OFDM symbols. Alternatively, a slot may be a set of one or more symbols. For example, a set of one or more OFDM symbols may be further included in a slot, e.g., the number of one or more is 1, 2, 3, 4, 6, 7, 12, or 14, etc.

In addition, the duration of the time slot may be related to the subcarrier spacing. For example, when the subcarrier spacing is 15kHz, the duration of one slot is 1 millisecond (ms); when the subcarrier spacing is 30kHz, the duration of one time slot is 0.5ms; the duration of one slot is 0.25ms when the subcarrier spacing is 60 kHz. Similarly, the subcarrier spacing is 15×2 ^u When the time length of one time slot is 2 ^-u ms，u＝0,1,2,…。

For ease of description, the time slots referred to in embodiments of the present application may include time slots, mini-time slots, or any of partial time slots, complete time slots.

Alternatively, for a slot, if there are one or more GP symbols in the middle of the slot or in the last symbol of the slot, these GP symbols may or may not be included at this time. The present application is not limited in this regard.

Alternatively, in the embodiments of the present application, as written expressions. In one expression, the slot may include the last null symbol. Alternatively, in another expression, the slot may not include the last null symbol.

In various embodiments of the present application, the frequency domain resource may be an RB set (RB set), a subchannel, an interlace (interlace), a PRB, or an RE. The RB set may include a plurality of RBs or a plurality of subchannels (sub-channels). The interleaved frequency domain resource blocks may also be referred to simply as interlaces. An interlace may include a plurality of discrete frequency domain resources (or discontinuous frequency domain resources) where the frequency domain spacing between adjacent discrete frequency domain resources is equal. Alternatively, the sub-channel refers to a unit including frequency domain resources formed of a plurality of RBs in succession. Alternatively, the number of consecutive RBs included in the sub-channel may be configured by signaling or may be predefined. For example, the number of RBs included in the sub-channel is an integer of 10, 12, 15, 20, or 25. Alternatively, one interface includes a plurality of RBs, and a plurality of RBs not used for transmission are protruded between the RBs at equal intervals. For example, one interlace occupies 10 RBs, only one RB of each 10 RBs is used for transmission, and the rest is not used for transmission by the first device. For example, assuming 50 RBs on an RB set or resource pool, one interlace may occupy a total of 5 RBs numbered 0, 10, 20, 30, 40, with the remaining RBs being left empty for no transmission.

8, sequence:

in this application, the sequence may be a random sequence or a low peak-to-average ratio sequence. The optional random sequence may be an m sequence, a Gold sequence, or the like, which is not limited in this application. The low peak-to-average ratio sequence can be a binary sequence, or a 4-phase sequence, and can also be a ZC sequence. These sequences have the advantage of good peak-to-average ratio low correlation properties. Alternatively, ZC sequences refer to Zadoff-Chu sequences, or Zero-Correlation (Zero-Correlation) sequences.

In this application, an example of a 31-bit Gold sequence is as follows:

for example, for a shift register of length 31 bits, the random sequence output has a length M _PN ，n＝0,1,...,M _PN -1; the random sequence c (n) may be generated by:

c(n)＝(x ₁ (n+N _C )+x ₂ (n+N _c ))mod2

x ₁ (n+31)＝(x ₁ (n+3)+x ₁ (n))mod2

x ₂ (n+31)＝(x ₂ (n+3)+x ₂ (n+2)+x ₂ (n+1)+x ₂ (n))mod2

wherein N is _C =1600, one m-sequence x ₁ The initial value of (n) may be: x is x ₁ (0)＝1,x ₁ (n)＝0,n＝1,2,…,30。

Second m-sequence x ₂ The initial value of (n) is:

where mod is a modulo operation, mod2 represents the logarithm divided by 2. According to the initial value c of the determined first sequence c (n) _init The first sequence c (n) can be determined.

ZC sequences, also known as Zadoff-Chu, frank-Zadoff-Chu (FZC) sequences or Chu sequences, are one of the perfect sequences. This sequence has ideal periodic autocorrelation properties. The main parameters for generating ZC sequence are one or more of the root sequence number, cyclic shift value and orthogonal cover code. The sequences used in the present application may be pseudo random sequences, ZC sequences, or other low peak ratio sequences (e.g., length defined in LTE or NR Rel-15 protocols is a positive integer no less than 6).

Alternatively, the ZC sequence may be defined by the following formula:

wherein,for reference signal sequences, α is the cyclic shift value of the sequence, and u and v are parameters that generate the base sequence. Base sequence->Can be generated as follows:

wherein,

9, reference signal, physical signal carrying sequence is sent for specific function.

Reference Signals (RS) such as sidelink-physcial reference signal, SL-PRS are referred to in this application. The RS is a physical signal generated by mapping a specific sequence onto a corresponding time-frequency resource according to a pre-transmitted resource mapping manner.

There are different types of reference signals, depending on the function. When the reference signal is used for transmitting feedback information, the reference signal may be a demodulation reference signal used for carrying feedback information, or may be a sequence directly used for carrying feedback information. The reference signal transmitting the feedback information for the data is mainly referred to as a reference signal, and the device transmitting the reference signal may be a first device transmitting the feedback information, a second device transmitting the first data, or a device performing measurement or providing a synchronization source. The reference signal has the following uses: for data demodulation, carrying information, channel state information (channel state information, CSI), radio resource management (radio resource management, RRM) or radio link monitoring (radio link monitoring, RLM) measurements, synchronization, phase noise tracking, etc. The reference signal may be carried in sequence or in control information coding bits in the feedback channel when carrying feedback information. In particular, the reference signal may be a demodulation reference signal (demodulation reference signal, DMRS) used by a physical side uplink shared channel (physical sidelink shared channel, PSSCH), and may be a physical side uplink control channel (physical sidelink control channel, PSCCH); the reference signal may be an RS, or a channel sounding reference signal (sounding reference signal, SRS), or CSI-RS, etc. when the CSI, RRM, or RLM measurements are performed on the reference channel; the reference signal may be a reference signal used for a physical side uplink broadcast channel (physical sidelink broadcast channel, PSBCH) or the like when synchronization is performed.

Fig. 3 is a diagram illustrating the occupation of frequency domain resources. The occupation mode of the frequency domain resources can be divided into discrete mapping structure based on interleaving and continuous mapping result

Fig. 3 (a) shows a structure of 2-symbol frequency domain interleaving.

Fig. 3 (b) shows a structure of frequency domain continuous mapping of 2 symbols.

Fig. 3 (c) shows a structure of frequency domain interleaving of 1 symbol.

Fig. 3 (d) shows a structure of frequency domain continuous mapping of 1 symbol.

The bandwidth of the frequency domain resource occupied by the information can be as followsFrequency domain resources, K is a number greater than 0, ">Is a positive integer greater than or equal to 1. For example, the number of information occupation symbols is 1, and k is equal to 2. As another example, the number of information occupation symbols is 2,K equal to 1. For another example, the number of information occupation symbols is 4, and K is equal to 1/2.

As described above, if the number of information occupation symbols to be transmitted is 2, K is equal to 1. It can be seen that, inIn case of 1, if the frequency domain resource occupied by the information is discrete mapping based on interleaving, the structure of the frequency domain resource of the information is as shown in (a) of fig. 3; if the frequency domain resource occupied by the information is a frequency domain continuous map, the structure of the frequency domain resource of the information is as shown in (b) of fig. 3.

If the number of information occupation symbols to be transmitted is 1, K is equal to 2. It can be seen that, in In case of 1, if the frequency domain resource occupied by the information is discrete mapping based on interleaving, the structure of the frequency domain resource of the information is as shown in (c) of fig. 3; if the frequency domain resource occupied by the information is a frequency domain continuous map, the structure of the frequency domain resource of the information is as shown in (d) of fig. 3.

10 guard interval (GP)

GP symbol refers to a null symbol or guard symbol (guard symbol). Alternatively, the GP symbol may be used for transmit-receive conversion, beam scanning, switching of radio frequencies or antennas, etc. Alternatively, the GP symbol may be located in the middle of the slot, or may be located in the last symbol of the slot. The present application is not limited in this regard.

The code resource, also called sequence resource, corresponds to a sequence generated according to the sequence parameters.

For random sequences, the parameters of the sequence include the starting position of the sequence, the length of the sequence, and the initial value of the sequence. For low bee space ratio sequences (e.g., ZC (Zadoff-Chu) sequences), the parameters of the sequence include root sequence, cyclic Shift (CS), or orthogonal cover code (Orthogonal Cover Code, OCC), etc.

The initial value of the sequence refers to that for a random sequence (such as Gold sequence, m sequence), the initial value of the sequence is the initial value of a shift register generating the sequence.

Different initial values of the sequence may also be associated with different indexes. Different indexes are used to indicate different initial values or parameters used to generate the initial values. For example, multiple IDs are indicated by signaling configuration, provisioning: { N _ID-1 ，N _ID-2 ，…，N _ID-M }. Optionally, these IDs are used to generate initial values of the random sequence. These IDs used to generate the initial values of the random sequences may be referred to as sequence Identifications (IDs). M indexes may be set, where M indexes are in one-to-one correspondence with M IDs, so that the corresponding IDs may be found by the indexes. Similarly, information such as CS value may also be indicated by an index. For example, assuming there are four sets of sequences, the CS value pairs may be {0,3,6,9}, if there are four sequence indexes available for the side-uplink positioning reference signals, the four CSs may correspond to the four indexes, respectively. For example, CS value 0 corresponds to index 0, CS value 3 corresponds to index 1, CS value 6 corresponds to index 2, and CS value 9 corresponds to index 3. These indices may be referred to as sequence indices. The sequence index may also be used as sequence information.

12, orthogonal sequence index

The orthogonal sequence, in this application, may be an orthogonal cover code (Orthogonal Cover Code, OCC). The index of the orthogonal sequence is the index of the OCC. OCCs are commonly used for sequence transmission or data transmission. By using different OCCs, transmission of multiple reference signals or data on the same time-frequency resource can be achieved.

13, the information being configured may refer to the network device configuring the information on the resource pool. In the absence of a network, this information may be preconfigured. The information is a preset value which can be understood as being preset in the device.

14, identification of terminal device

The identifier of the terminal device is an identifier for indicating, identifying or corresponding to the corresponding terminal device. For example, the terminal device may be an index or number to uniquely identify the terminal device. This identification may be signaling configured, pre-configured, or pre-defined. As an example, the identity of the terminal device is any one of the following: a media access control (medium access control, MAC) address of the terminal, a subscriber identity module (subscriber identity module, SIM) card number, an international mobile equipment identity (international mobile equipment identity, IMEI), etc.

Alternatively, the identifier of the terminal device may be an identifier for indicating, identifying or corresponding to the transmission of the corresponding terminal device. This identification may be signaling configured, pre-configured, or pre-defined. For example: an IP address, a network temporary identifier (radio network temporary identifier, RNTI), a source identity of a transmitting device, a destination identity of a receiving device. Alternatively, the source identification of the transmitting device may be an identification associated with a particular service or message to be transmitted. Alternatively, the destination identification of the receiving device may be an identification associated with a particular service or message to be received.

15, comb teeth (comb)

When the signals are mapped to the corresponding symbols, one reference signal is mapped to every N resources on the corresponding frequency domain resources, and the reference signals are not mapped to the other N-1 resources. This way of mapping the frequency domain resources is called comb teeth. The number of N in the comb teeth is called the size of the comb teeth. The size of the teeth in this embodiment may also be denoted as Comb-N.

Alternatively, over a certain size of frequency domain bandwidth, the comb teeth can also be described as: the resources in each symbol are y×n Resource Elements (REs), each N REs having a reference signal therein, M being a number greater than zero, and N being a positive integer. In this way, the N REs can be used by different communication devices, respectively.

Alternatively, assuming that there are K PRBs on the frequency domain bandwidth, the size of Y is: nre _rb K/N, where Nre _rb represents the number of REs in one PRB, e.g., nre _rb=12. The value of K is optionally determined by the bandwidth of the frequency domain resource in which the reference signal is located, such as the bandwidth of the resource pool, the bandwidth of the carrier, the bandwidth of BWP, etc.

Optionally, for the reference signal in the comb state, there are N orthogonal frequency domain resources, as viewed from the frequency domain, used for the reference signal.

Alternatively, when the parameter signal is mapped in one of the N REs, there may be mapping positions of frequency domain resources of N different reference signals.

For example, in fig. 4, comb-2, which indicates that n=2, one positioning reference signal is mapped on every 2 REs. For example, in fig. 3, comb-4, which indicates n=4, a positioning reference signal is mapped on every 4 REs. Alternatively, for the case of 106 PRBs over the frequency domain bandwidth, y=6×106 for Comb-2 and y=3×106 for Comb-3.

The resources of the downlink positioning reference signal (or the uplink positioning reference signal) in each symbol are Y (resource element) REs in Y×N Resource Elements (REs), one downlink positioning reference signal (or the uplink positioning reference signal) is arranged in each N REs, Y is a number greater than zero, and N is a positive integer. In this way, the N REs can be used by different communication devices, respectively.

Fig. 4 is a schematic diagram of resources occupied by downlink positioning reference signals. The time-frequency resources occupied by the downlink positioning reference signals as shown in fig. 4 are comb-like mapped.

Fig. 4 shows time-frequency mapping patterns of downlink positioning reference signals when comb size (comb size) is 2, 4, 6, and 12, respectively.

As shown in fig. 4, in case that the comb size is 2, one communication device may map downlink positioning reference signals in such a manner that 1 RE is mapped every 2 REs on each symbol. In other words, in case that the comb tooth size is 2, the mapping interval of the downlink positioning reference signal on the frequency domain is 2.

Fig. 5 (a) shows a time-frequency mapping pattern of the uplink positioning reference signal when the comb size is 2 and occupies 1 symbol.

Fig. 5 (b) shows a time-frequency mapping pattern of the uplink positioning reference signal when the comb size is 2 and occupies 2 symbols.

Fig. 5 (c) shows a time-frequency mapping pattern of the uplink positioning reference signal when the comb size is 4 and occupies 2 symbols.

Fig. 5 (d) shows a time-frequency mapping pattern of the uplink positioning reference signal when the comb size is 2 and 4 symbols are occupied.

Fig. 5 (e) shows a time-frequency mapping pattern of the uplink positioning reference signal when the comb size is 4 and occupies 4 symbols.

Fig. 5 (f) shows a time-frequency mapping pattern of the uplink positioning reference signal when the comb size is 8 and occupies 1 symbol.

Fig. 5 (g) shows a time-frequency mapping pattern of the uplink positioning reference signal when the comb size is 4 and 8 symbols are occupied.

Fig. 5 (h) shows a time-frequency mapping pattern of the uplink positioning reference signal when the comb size is 8 and 8 symbols are occupied.

Fig. 5 (i) shows a time-frequency mapping pattern of the uplink positioning reference signal when the comb size is 4 and occupies 12 symbols.

Fig. 5 (j) shows a time-frequency mapping pattern of the uplink positioning reference signal when the comb size is 8 and occupies 12 symbols.

The communication devices (for example, the first communication device and the second communication device) in the embodiments of the present application may be terminal devices, or may be network devices (for example, access network devices), or may be positioning management devices, etc.; the communication device may also be a component (e.g., a chip, a system-on-chip, and/or a circuit, etc.) in the above-described device.

The first communication device receives 601 at least one first message, each of the at least one first message comprising first side-link control information and first side-link positioning reference signals.

The first communication device determines 602 candidate resources for a second message based on at least one first side-link control information and/or at least one first side-link positioning reference signal comprised by the at least one first message, the second message comprising second side-link control information and second side-link positioning reference signals.

603, the first communication device sends the second message according to the candidate resource.

Accordingly, the second communication device may monitor the set of receive resources for a second message comprising second side uplink control information and second side uplink positioning reference signals; the second message is received on a candidate resource determined by at least one first side uplink control information and/or at least one first side uplink positioning reference signal, the set of received resources comprising the candidate resource.

Optionally, in some embodiments, the second side uplink control information is located before the second side uplink positioning reference signal. Similarly, the first side uplink control information carried by the same first information is located before the first side uplink positioning reference signal.

Optionally, in some embodiments, the second side uplink control information and the second side uplink positioning reference signal are transmitted on the same time slot. Similarly, the first side uplink control information and the first side uplink positioning reference signal carried by the same first information are received on the same time slot.

Optionally, in some embodiments, the first communication device may be configured to receive the at least one first message within a first time window. The candidate resource may be located within a second time window. The second time window is later than the first time window.

In some embodiments, the first communication device may measure M side uplink control channels and/or M first side uplink positioning reference signals within the first time window to obtain a first resource. The first resource comprises a resource having a signal quality above a signal quality threshold. M is a positive integer.

In some embodiments, the signal quality threshold may be preset, preconfigured, or configured by the network device.

M pieces of first side-link control information are carried on the M pieces of side-link control channels, respectively. The at least one first side-link control information may include the M first side-link control information. The at least one first side uplink positioning reference signal may include the M first side uplink positioning reference signals.

Alternatively, the M first side uplink control information and the M first side uplink positioning reference signals may be respectively derived from M first information, and the at least one first information includes the M first information. In other words, the ith first side link control information of the M first side link control information is from the ith first information of the M first information, and the ith first side link positioning reference signal of the M first side link positioning reference signals is from the ith first information, i=1, …, M.

For convenience of description, the "measuring a side-uplink control channel for carrying first side-uplink control information" will sometimes be referred to simply as "measuring first side-uplink control information" in the embodiments of the present application.

The side-uplink control channel resources are resources for a transmission side-uplink control channel, and the reference signal resources are resources for a transmission side-uplink positioning reference signal. The side-link control channel resources include frequency domain resources and/or code resources of the side-link control channel, and the reference signal resources include frequency domain resources and/or code resources of the side-link positioning reference signal.

In some embodiments, the frequency domain resource of the side-downlink control channel may be an interlace number or a subchannel number of the side-downlink control channel. The code resource of the side-downlink control channel may be an orthogonal code sequence index of the side-downlink control channel. The frequency domain resource of the sidelink positioning reference signal may be an offset value (offset) of an RE occupied by the sidelink positioning reference signal. The code resource of the side-downlink positioning reference signal may be an orthogonal sequence index of the side-downlink positioning reference signal. The code resource of the sidelink positioning reference signal may also be information for determining the sidelink positioning reference signal, such as a cyclic shift value, a root sequence index, or a parameter for generating a sequence initial value of the sidelink positioning reference signal.

For convenience of description, it is assumed that the at least one first information shares M ₀ First information M ₀ Is a positive integer.

In some embodiments, the first communication device may measure first side-link control information and/or first side-link positioning reference signals for each first information received within a first time window to determine the first resource. In this case M is equal to M ₀ 。

In other embodiments, the first communication device may only measure periodic first messages, and not measure periodic first messages. For example, M received by the first communication device within a first time window ₀ Some of the first messages may be interim messages while others are periodic messages. In this case M is smaller than M ₀ 。

In other embodiments, the first communication device may only measure the periodic first message with a reservation period that falls within the second time window. In other words, the first communication device may not measure the first messages even if they are periodic messages, but the reservation period is outside the second time window. For example, M received by the first communication device within a first time window ₀ The first messages may all be periodic messages, but the reservation periods of some of the first messages do not fall within the second time window and the reservation periods of other of the first messages fall within the second time window. In this case, the first communication device may measure only the periodic first messages whose reservation periods fall within the second time window. In this case M is smaller than M ₀ 。

In other embodiments, the first communication device is within a first time windowAll messages received may be periodic messages and the reserved resources fall within the second time window. In this case M is also equal to M ₀ 。

Fig. 7 is a schematic diagram of a first time window and a second time window.

As shown in fig. 7, the starting time of the first time window is T ₀ The end time of the first time window is T ₁ The method comprises the steps of carrying out a first treatment on the surface of the The starting time of the second time window is T ₃ The end time of the second time window is T ₄ 。T ₁ And T is ₂ The duration of the interval is D ₁ ，T ₃ And T is ₂ The interval duration is D ₂ 。D ₁ May be a number greater than or equal to 0. D (D) ₂ May be a number greater than or equal to 0. It will be appreciated that if D ₁ Equal to 0, then T ₁ ＝T ₂ The method comprises the steps of carrying out a first treatment on the surface of the Similarly, if D ₂ Equal to 0, then T ₃ ＝T ₂ 。

As shown in fig. 7, it is assumed that three first messages are received by the first communication device within the first time window. For ease of distinction, these three first messages may be referred to as messages msg, respectively ₁ Message msg ₂ Sum message msg ₃ . Message msg ₁ Sum message msg ₂ Is a periodic message, and message msg ₁ Sum message msg ₂ Will reappear within the second time window; message msg ₃ Rather than periodic messages. Thus, the first communication device may only message msg ₁ Sum message msg ₂ Is measured, and/or the side-link control information and/or the side-link positioning reference information. It can be seen that in this case the first communication device receives a larger number of first messages than is required to be measured.

The first resource may include at least one sidelink positioning reference signal resource and/or at least one reference signal resource. In other words, the first resource may be:

case 1, the first resource comprises only one side uplink control channel resource;

case 2, the first resource comprises only one reference signal resource;

case 3, the first resource comprising at least two side uplink control channel resources but not a reference signal resource;

case 4, the first resource comprising at least two reference signal resources but not side uplink control channel resources;

case 5, the first resource comprising a side uplink control channel resource and a reference signal resource;

Case 6, the first resources comprise at least two side-uplink control channel resources and at least two reference signal resources.

Optionally, in some embodiments, the determining, by the first communication device, the candidate resource according to the first resource includes: the first communication device determines a reservation period according to the M pieces of first side uplink control information; the first communication device determines a second resource according to the first resource and the reserved period, wherein the second resource is positioned in the second time window; the first communication device excludes the second resource to obtain the candidate resource.

As described above, some of the first messages received by the first communication device may be periodic. The first communication device may determine the period of each of the periodically transmitted first messages based on information carried by the first side uplink control information for indicating the period. These periods may be referred to as reservation periods. Assuming that the M first messages are all periodic messages, the first communication device may determine a reservation period of the ith first message according to first side uplink control information carried by the ith first message in the M first messages. The first resource is determined by the first communication device based on information received within a first time window. Thus, the time domain resource of the first resource is located within a time window. The first communication device may determine which resources are reserved in which second time windows based on the first resources and the reservation period. The resources that would be reserved are the second resources. The frequency code resource of the second resource is the same as the first resource, but the time domain resource of the first resource is located in the first time window, and the time domain resource of the second resource is located in the second time window.

In some embodiments, the first communication device may directly exclude the second resource within the second time window to obtain the candidate resource.

Also taking fig. 7 as an example, the first communication device may be based on the message msg ₁ Sum message msg ₂ Information carried in control information of (a) determining message msg ₁ Sum message msg ₂ Is a periodic message and determines the message msg ₁ Sum message msg ₂ Is used for the reservation period of (a). It is assumed that the first communication device is based on the message msg ₁ Sum message msg ₂ Determining that the first resource comprises a message msg ₁ Side-link control channel resources and reference signal resources. Then the first communication device may determine a message msg based on the first resource and the reservation period ₁ And resources occupied in the second time unit. Message msg ₁ The resources occupied in the second time unit are the second resources. The first communication device may exclude the second resource from the second time unit containing resources, the remaining resources being candidate resources for which the second message may be sent. It can be seen that although the message msg ₂ Is also a periodic message and will also repeatedly occur in the second time unit, but due to the message msg ₂ Not belonging to the first resource (in other words, message msg ₂ Signal quality less than the signal quality threshold), then message msg ₂ Resources within the second time window may also belong to candidate resources.

Optionally, in some embodiments, the second side uplink control information includes indication information of a second reservation period. The second reservation period may be a period during which sidelink control information (sidelink control information, SCI) and/or a second sidelink positioning reference signal in the PSCCH is transmitted within a second time window.

Optionally, in some embodiments, the second reservation period is determined according to any one or more of the following: high-level indication information of the first communication device; the second side uplink positioning reference signal QoS parameters; a movement speed of the first communication device; a positioning algorithm used by the first communication device; the type of synchronization source; a priority; congestion level on the resource pool. Alternatively, different speeds correspond to different reservation periods. Alternatively, the larger the speed, the smaller the reservation period. Thus, the positioning performance in a high-speed moving scene can be better ensured. Alternatively, the speeds may be divided into different levels, with higher speeds corresponding to smaller period values. Whereas the larger.

Optionally, in some embodiments, the second reservation period is determined according to the following: the first communication device obtains first configuration information, the configuration information including: mp reservation periods, wherein Mp is a positive integer, and the value or the value set of the Mp reservation periods is determined by any one or more of the following modes: the second side uplink positioning reference signal QoS parameters; a movement speed of the first communication device; a positioning algorithm used by the first communication device; the type of synchronization source; a priority; congestion level on the resource pool. Alternatively, different speeds correspond to different reservation periods. Alternatively, the greater the speed, the smaller the value of the corresponding reservation period. Thus, the positioning performance in a high-speed moving scene can be better ensured.

Optionally, in some embodiments, the positioning algorithm includes one or more of the following: positioning algorithm based on round trip delay difference; positioning algorithm based on arrival angle; a positioning algorithm based on the departure angle; carrier phase based positioning algorithms. Alternatively, the period may be longer than that of a time delay difference based positioning algorithm, such as an angular positioning based algorithm. Thus, the performance of the positioning algorithm based on the time delay difference can be better ensured.

Optionally, in some embodiments, the method further comprises: the first communication device determines a second resource according to the first resource, the reservation period, and the second reservation period, wherein the second reservation period is included in the second side uplink control information. In other words, in this case, the resources to be excluded are not only reserved reception resources whose signal quality is higher than the threshold, but also reserved transmission resources.

In some embodiments, the first communication device obtains indication information for instructing the first communication device to measure at least one of: the M side uplink control channels, the M first side uplink positioning reference signals. In other words, the first communication device may determine whether to measure only M side-link control channels, only M first side-link positioning reference signals, or both the M side-link control channels and the M first side-link positioning reference signals, based on the indication information.

In some embodiments, the indication information may be predefined, preconfigured or configured.

In other embodiments, the indication information may be determined by the first communication device. For ease of description, the total number of resources of the sidelink positioning reference signal on each slot is hereinafter denoted as N _PRS The total number of resources of the side-link control channel on each time slot is counted as N _PSCCH . If N _PRS Less than N _PSCCH Only M first side uplink positioning reference signals may be measured; if N _PRS Greater than N _PSCCH Only the M side uplink control channels may be measured.

N _PRS And N _PSCCH May be predefined, preconfigured or configured.

The M side uplink control channels and the M first side uplink positioning reference signals are in correspondence. The correspondence between the sidelink control channel and the first sidelink location reference signal may be determined based on a piece of information associated with the sidelink control channel. The information includes at least one of the following: frequency domain resource of the side-link positioning reference signal, sequence parameter of the side-link positioning reference signal. The information associated with the side uplink control channel may include: the information is carried by the side-downlink control channel and/or the information is determined by frequency domain resources and/or orthogonal sequence indexes of the side-downlink control channel. That is, in some embodiments, the first communication device may directly transmit information carrying frequency domain resources of the sidelink positioning reference signal and/or sequence parameters of the sidelink positioning reference signal. The receiving end (i.e. the second communication device) may determine the frequency domain resources of the sidelink positioning reference signal and/or the sequence parameters of the sidelink positioning reference signal based on the received information. In other embodiments, the second communication device may determine the information based on the received resources of the side-uplink control channel.

In some embodiments, the first communication device measures M side uplink control channels and/or M first side uplink positioning reference signals within a first time window, determining a first resource, comprising: the first communication device measures the M first side link positioning reference signals to obtain a first measurement result, wherein the first measurement result comprises M ₁ Signal quality of the reference signal resource, M ₁ The reference signal resources respectively carry M of the M first side link positioning reference signals ₁ First side-link positioning reference signals, M ₁ Is a positive integer less than or equal to M; the first communication device determines the first resource according to a first signal quality threshold and the first measurement result, wherein the first resource comprises a first reference signal resource and a control channel resource corresponding to the first reference signal resource, and the first reference signal resource is the M ₁ And the signal quality of the reference signal resources is higher than that of the first signal quality threshold. The first reference signal resource may include one reference signal resource or may include a plurality of reference signal resources.

In other words, in the above embodiment, the first communication device may measure only the signal quality of the side uplink positioning reference signal to determine the first resource. Specifically, the first communication device screens out reference signal resources with signal quality higher than a signal quality threshold according to the measurement result; then, according to the corresponding relation between the side uplink control channel resource and the reference signal resource, determining the side uplink control channel resource corresponding to the screened reference signal resource; finally, the first resource is obtained, and the first resource includes a reference signal resource (i.e., a first reference signal resource) with signal quality higher than a signal quality threshold and a corresponding side-link control channel resource.

The offset value (offset) number of the RE may be denoted as N and the interleaving number or the frequency domain subchannel number may be denoted as M for convenience of description. N may also be comb size. M and N may be preconfigured, predefined, or network device configured.

In some embodiments, the reference signal resources may be associated with side uplink control resources, and the index and/or sequence index of the reference signal resources may be determined from a frequency domain resource index of the side uplink control channel.

The index of the frequency domain resource of the side-link control channel may be an index of the lowest (or highest) PRB occupying the resource, or an index of the lowest (or highest) subchannel occupying the resource of the PSCCH, or an index of the lowest (or highest) frequency domain interlace occupying the resource of the PSCCH.

Optionally, in some embodiments, the index of the frequency domain resource of the reference signal resource and the sequence index of the reference signal resource are determined according to the index of the frequency domain resource of the side uplink control channel and the N.

Optionally, in some embodiments, the frequency domain resource index of the reference signal resource and the sequence index of the reference signal resource may satisfy the following formula:

i _{SL-PRS_RE-offset} ＝(i _PSCCH +Δ) mod N (equation 1-1)

i _{SL-PRS_seq-index} ＝floor(i _PSCCH N) (equation 1-2)

Wherein i is _{SL-PRS_RE-offset} Frequency domain resource index, i, representing the reference signal resource _PSSCH Index i representing frequency domain resource of the side uplink control channel _{SL-PRS_seq-index} The sequence index representing the reference signal resource, N is the offset number of REs (i.e., the number of frequency domain resources available for the side-uplink positioning reference signal). Delta is an offset value and delta may take a positive integer greater than or equal to 0 and less than or equal to N-1. floor () represents a rounding down. Delta may be preconfigured, predefined, or network device configured.

In some embodiments, the frequency domain resource index of the reference signal resource and the sequence index of the reference signal resource may satisfy the following formula:

i _{SL-PRS_RE-offset} ＝i _PSCCH ModN (formulas 1-3)

i _{SL-PRS_seq-index} ＝floor(i _PSCCH N) (equations 1-4)

Wherein i is _{SL-PRS_RE-offset} Frequency domain resource index, i, representing the reference signal resource _PSSCH Index i representing frequency domain resource of the side uplink control channel _{SL-PRS_seq-index} The sequence index representing the reference signal resource, N is the offset number of REs (i.e., the number of frequency domain resources available for the side-uplink positioning reference signal). floor () represents a rounding down.

The first communication device may determine the reference signal resource corresponding to each side uplink control channel resource according to the formula 1-1 and the formula 1-2, or according to the formula 1-3 or the formula 1-4. In other words, the first communication device may determine the correspondence between the side-link control channel resources and the reference signal resources according to the formulas 1-1 and 1-2, or according to the formulas 1-3 or 1-4. After the measurement of the reference signal resources is completed and the first reference signal resources are determined, determining the side uplink control channel resources corresponding to the first reference signal resources according to the corresponding relation determined in advance.

Fig. 8 is a diagram of code division of side-uplink positioning reference signals with N less than M. As shown in fig. 8, M is equal to 10, n is equal to 4, and the number of sequences of the side-uplink positioning reference signals is equal to 3. In this case, there are 10 candidate control resources, and there are 12 candidate reference signal resources, each corresponding to one candidate reference signal resource.

For example, the first communication device may determine the correspondence between PSCCH and SL-PRS as shown in FIG. 8 according to equation 1-3 or equation 1-4. Assume that the first communication device determines that the first resource includes a reference signal resource with an RE offset value of 0 and a sequence index of 2. Then, the first communication device may determine, according to the correspondence between the side uplink control channel resource and the reference signal resource, that the resource of the side uplink control channel with the frequency domain resource index of 8 also belongs to the first resource.

Optionally, in some embodiments, the index of the frequency domain resource of the reference signal resource and/or the sequence index of the reference signal resource is determined according to the index of the frequency domain resource of the side uplink control channel and the orthogonal sequence index of the side uplink control channel.

Optionally, in some embodiments, the index of the frequency domain resource of the reference signal resource and the sequence index of the reference signal resource are according to an index of the frequency domain resource of the side downlink control channel, an orthogonal sequence index of the side downlink control channel, an orthogonal frequency domain resource number M of the side downlink control channel, and the N.

If N is greater than M and the side uplink control channel is code-divided to K orthogonal sequences and kxm is greater than or equal to N, then each of the N reference signal resources may occur corresponding to a candidate control resource of kxm control resources. In this case, the index of the frequency domain resource of the reference signal resource may satisfy the following formula:

i _{SL-PRS_RE-offset} ＝(i _PSCCH +Δ) mod N (equations 1-5)

i _PSCCH ＝i _OCC *M+i _interlace (equations 1-6)

Wherein i is _{SL-PRS_RE-offset} Index of frequency domain resource representing the reference signal resource, i _OCC Orthogonal sequence index i representing the side-downlink control channel _interlace An index indicating the frequency domain resource of the side-link control channel, N is the offset number of REs (i.e., the number of frequency domain resources that can be used for the side-link positioning reference signal), and M is the number of orthogonal frequency domain resources of the side-link control channel. i.e _interlace ＝0,1,…,M-1，i _OCC =0, 1, …, K-1, K is the number of orthogonal sequences of the side-uplink control channel. Delta is an offset value and delta may take a positive integer greater than or equal to 0 and less than or equal to N-1.

In some embodiments, the offset value Δ may not be introduced in determining the index of the frequency domain resource of the reference signal resource. In this case, the index of the frequency domain resource of the reference signal resource may satisfy the following formula:

i _{SL-PRS_RE-offset} ＝i _PSCCH ModN (formulas 1-7)

i _PSCCH ＝i _OCC *M+i _interlace (equations 1-8)

Wherein i is _{SL-PRS_RE-offset} Index of frequency domain resource representing the reference signal resource, i _OCC Orthogonal sequence index i representing the side-downlink control channel _interlace An index indicating the frequency domain resource of the side uplink control channel, N is the number of offset values (offsets) of REs, and M is the number of orthogonal frequency domain resources of the side uplink control channel. i.e _interlace ＝0,1,…,M-1，i _OCC =0, 1, …, K-1, K is the number of orthogonal sequences of the side-uplink control channel.

Similarly, the first communication device may determine the reference signal resource corresponding to each side-link control channel resource according to equations 1-5 and 1-6, or according to equations 1-7 or 1-8. In other words, the first communication device may determine the correspondence between the side-link control channel resources and the reference signal resources according to equations 1-5 and 1-6, or according to equations 1-7 or 1-8. After the measurement of the reference signal resources is completed and the first reference signal resources are determined, determining the side uplink control channel resources corresponding to the first reference signal resources according to the corresponding relation determined in advance.

Fig. 9 is a diagram of N being greater than M and the side-uplink control channels being code-divided. As shown in fig. 9, M equals 5,N equals 8 and K equals 2. In this case, there are 10 candidate side uplink control channel resources in total, 8 candidate reference signal resources in total, and each candidate reference signal resource corresponds to one candidate control resource.

For example, the first communication device may determine the correspondence between PSCCH and SL-PRS as shown in FIG. 8 according to formulas 1-7 or formulas 1-8. Assuming the first communication device determines that the first resource contains i _{SL-PRS_RE-offset} Reference signal resource of=2. Then the firstA communication device can determine i according to the corresponding relation between the side-link control channel resource and the reference signal resource _OCC =0 and i _interlace The resources of the side-uplink control channel of=2 also belong to the first resource.

In some embodiments, the resources of the side uplink control channel and the reference signal resources are determined from a resource index.

The resource index indicates both the resources of the side uplink control channel and the reference signal resources. The maximum value of the resource index is predefined, preconfigured or configured by the network device. The resource index may be indicated by second indication information carried by the side uplink control channel.

Optionally, the resources of the side uplink control channel include frequency domain resources of the side uplink control channel and sequence parameters of the side uplink control channel; the reference signal resources include frequency domain resources of the sidelink positioning reference signal and sequence parameters of the sidelink positioning reference signal.

For example, in some embodiments, the index of the frequency domain resource of the side-link control channel and the orthogonal sequence index of the side-link control channel may satisfy the following formula:

f _PSCCH ＝i _index ModM (equations 1-9)

n _OCC ＝floor(i _index M) (equations 1-10)

Wherein f _PSCCH Is the frequency domain resource index, i, of the side-uplink control channel _index Is the resource index, n _OCC Is the orthogonal sequence index of the side downlink control channel, floor () represents a rounding down.

The frequency domain resource of the sidelink positioning reference signal and the sequence index of the sidelink positioning reference signal can satisfy the following formula:

f _RE ＝i _index ModN (formulas 1-11)

n _seq ＝floor(i _index N) (equations 1-12)

Wherein f _RE Is an index of a second frequency domain resource, i _index Is the resource index, n _seq Index of the second sequence, floor () represents rounding down.

In some embodiments, the first communication device may determine, after completing the reference signal resource measurement and determining the first reference signal resource, a side uplink control channel resource corresponding to the first reference signal resource according to a resource index used to determine the first reference signal resource.

Fig. 10 shows a schematic diagram of resources occupied by a side-downlink control channel and a side-downlink positioning reference signal. As shown in FIG. 10, M equals 5,N equals 4, ko equals 3, ks equals 3.Ko is the number of sequences of the side-uplink control channel Ko, ks is the number of sequences of the side-uplink positioning reference signal Ks.

Taking fig. 10 as an example, the first communication device is according to i _index The determined reference signal resource is n _sequ ＝0，f _RE Resources of =0, according to the same i _index It is determined that n _OCC ＝0，f _PSCCH Side-uplink control channel resource of=0. Assuming the first communication device determines that the first resource contains n _sequ ＝0，f _RE Resource of =0, then the first communication device can be based on the same i _index Determining that the first resource contains n _OCC ＝0，f _PSCCH Side-uplink control channel resource of=0.

As another example, in other embodiments, the index of the frequency domain resource of the side-link control channel may be determined according to the resource index, the frequency domain orthogonal resource number M of the side-link control channel, and a reference information, which may be one or more of an identification of the first communication device, an identification of the second communication device, and an offset value. In other words, the index of the frequency domain resource of the side downlink control channel may satisfy any one of the following formulas:

f _PSCCH ＝(i _index +Δ) mod M (equations 1-13)

f _PSCCH ＝(i _index +ID _S )modM (equations 1-14)

f _PSCCH ＝(i _index +Δ+ID _S ) ModM (formulas 1-15)

f _PSCCH ＝(i _index +ID _D ) ModM (formulas 1-16)

f _PSCCH ＝(i _index +Δ+ID _D ) ModM (equations 1-17)

f _PSCCH ＝(i _index +ID _S +ID _D ) ModM (equations 1-18)

f _PSCCH ＝(i _index +Δ+ID _S +ID _D ) ModM (equations 1-19)

Wherein f _PSCCH Is the frequency domain resource index, i, for transmitting the side-uplink control channel _index Is the resource index, ID _S Is all or part of bits of the identity of the first communication device, ID _D Is all or part of a bit of the identity of the second communication device, delta is an offset value, delta may take a positive integer greater than or equal to 0 and less than or equal to M-1. Delta may be predefined, preconfigured, or network device configured.

Similarly, the frequency domain resources of the sidelink location reference signal may be determined based on the resource index, the frequency domain orthogonal resource number N of the sidelink location reference signal, and a reference information, which may be one or more of an identity of the first communication device, an identity of the second communication device, and an offset value. In other words, the index of the second frequency domain resource may satisfy any one of the following formulas:

f _RE ＝(i _index +ID _S ) ModN (formulas 1-20)

f _RE ＝(i _index +Δ+ID _S ) ModN (formulas 1-21)

f _RE ＝(i _index +ID _D ) ModN (formula 1-22)

f _RE ＝(i _index +Δ+ID _D )modN (equations 1-23)

f _RE ＝(i _index +ID _s +ID _D ) ModN (formulas 1-24)

f _RE ＝(i _index +Δ+ID _s +ID _D ) ModN (formula 1-25)

Wherein f _RE Is an index of the second frequency domain resource, i _index Is the resource index, ID _S Is all or part of bits of the identity of the first communication device, ID _D Is all or part of a bit of the identity of the second communication device, delta is an offset value, delta may take a positive integer greater than or equal to 0 and less than or equal to N-1. Delta may be predefined, preconfigured, or network device configured.

The manner of determining the side-link control channel resources corresponding to the reference signal frequency domain resources using formulas 1-13 to 1-25 is the same as the manner of determining the side-link control channel resources corresponding to the reference signal frequency domain resources using formulas 1-9 and 1-11, and is not repeated here for brevity.

In addition, the reference signal frequency domain resources and the sidelink control channel resources may also be determined by the frequency code index, assuming i _PRS Is the frequency code index, i, of the side-uplink positioning reference signal _PSCCH Is the frequency code index of the side-downlink control channel, then i in fig. 10 _PRS Is in the range of 0 to 14, i _PSCCH Is in the range of 0 to 11. i.e _PRS And i _PSCCH The following relationship is satisfied: any of the formulas:

i _PRS ＝(i _PSCCH +Δ)modN _PRS (equations 1-26)

i _PRS ＝(i _PSCCH +Δ+ID _S )modN _PRS (equations 1-27)

i _PRS ＝(i _PSCCH +Δ+ID _D )modN _PRS (equations 1-28)

i _PRS ＝(i _PSCCH +Δ+ID _S +ID _D )modN _PRS (public)1-29)

i _PRS ＝(i _PSCCH +ID _S )modN _PRS (equations 1-30)

i _PRS ＝(i _PSCCH +ID _D )modN _PRS (equations 1-31)

i _PRS ＝(i _PSCCH +ID _S +ID _D )modN _PRS (equations 1-32)

Wherein i is _PRS Is the resource index of the side-uplink positioning reference signal, i _PSCCH Is the resource index of the side-link control channel, N _PRS Is the total number of resources for the side uplink positioning reference signal.

It can be seen that the first communication device can first determine i according to equations 1-26 through 1-32 _PRS And i _PSCCH Corresponding relation of (3). And then, under the condition that the reference signal resources included in the first resources are determined, determining the link control channel resources corresponding to the reference signal resources according to the determined corresponding relation.

Also taking fig. 10 as an example, assume that the first communication device determines that the first resource includes i _PRS In the case of reference signal resource=0, the first communication device may determine the link control channel resource i corresponding to the reference signal resource according to the correspondence _PSCCH Resources of =0.

If the correspondence between the reference signal resource and the sidelink control channel resource is a manner in which information including the reference signal resource is carried by the sidelink control channel, the first communication device may determine the correspondence between the reference signal resource and the sidelink control channel resource in advance. Thus, after the first communication device determines the reference signal resource included in the first resource, the side uplink control channel resource corresponding to the reference resource may be determined according to the correspondence.

As described above, M ₁ Is a positive integer less than or equal to M. That is, in some embodiments, the first measurement may include a number of signal qualities of the reference resourceTo be equal to or less than the measured first side uplink positioning reference signal number.

For example, in some embodiments, the first communication device may put the measurement result of each of the M first side-link positioning reference signals into the first measurement result. In this case M is equal to M ₁ 。

As another example, in other embodiments, the first communication device may delete part (e.g., one, two, or more) of the measurements after measuring the M first side uplink positioning reference signals. Only the undeleted measurement results are included in the first measurement results. In this case, M ₁ Less than M. For example, the first communication device obtains signal quality of M reference signal resources after measuring M first side link positioning reference signals. The first communication device may determine one or more signal quality measurements of better or best signal quality among the signal qualities of the M reference signal resources. Obtaining M-M which is not excluded ₁ And the measurement results. In other words, the first communication device may consider the resource corresponding to one or more signal qualities with the lowest or lower quality of the M signal qualities as a resource that need not be excluded. The first communication device can thus exclude these signal qualities from the signal qualities of the measured M reference signal resources, the remaining M ₁ The signal quality of the reference signal resource is the signal quality included in the first measurement result

In some embodiments, the signal quality of an i-th reference signal resource of the signal qualities of the M reference signal resources is determined according to an energy sum of REs occupied by the i-th first side-link positioning reference signal of the M first side-link positioning reference signals, the i-th first side-link positioning reference signal resources in each symbol are T REs of t×n REs, each N REs having one RE occupied by the i-th first side-link positioning reference signal therein, T is a number greater than zero, the N is a positive integer, and i=1, …, M.

For example, in some embodiments, the signal quality of the ith reference signal resource is the energy sum of REs occupied by the ith first side uplink positioning reference signal.

As another example, in some embodiments, the signal quality of the ith reference signal resource is the sum of the energy of REs occupied by the ith first side uplink positioning reference signal multiplied by a coefficient.

For example, the signal quality of the ith reference signal resource may satisfy the following equation:

wherein RSSI _PRS,comb-j Indicating the signal quality of the reference signal resource occupying the first side uplink positioning reference signal of the jth RE of every N REs. K is the bandwidth of the resource pool, the unit is Resource Block (RB), sub-channel or interlace, comb-j indicates that the ith reference signal occupies the jth RE, b in every N REs _j Representing normalized coefficients such as 1,1/N, etc. Optionally, N in formula 2-1 is the Comb size of the first side-link positioning reference signal configuration, e.g. Comb-4, b=0.25, or b=4. A in the formula 2-1 _j,k Is the signal or amplitude of the signal detected on the jth RE on the kth RB, subchannel, or interlace occupied by the ith first sidelink positioning reference signal.

Optionally, in some embodiments, the resources within the second time window may include a third resource in addition to the second resource that needs to be excluded. The third resource includes resources of a plurality of side-link control channels, the time-frequency resources of the plurality of side-link control channels being the same. The first communication device may also exclude the third resource from within the second time window.

Optionally, in some embodiments, after excluding the second resource, the side uplink control channel resources remaining in the second time window may further include: a first set of control channel resources and a second set of control channel resources. The q-th side-link control channel resource of the P side-link control channel resources included in the first control channel resource set is in the second control signalThere is N in the channel resource set _q Corresponding side-link control channel resources, a qth side-link control channel resource and N _q The time-frequency resources of the corresponding side-uplink control channel resources are the same and the orthogonal sequences are different. The first communication device may also exclude side-uplink control channel resources comprised by the second set of control resources.

Optionally, in some embodiments, when the number of candidate resources in the second time window is smaller than the preset threshold value, the side uplink control channel resource included in the third resource or the second control resource set is used as the candidate resource.

Taking fig. 9 as an example, for convenience of description, REs having RE offset values of 0 to 7 may be referred to as PRS resources 0 to 7, respectively; the sidelink control channel resources with frequency code indexes of 0 to 7 are respectively called as: control channel resources 0 through 7. As shown in fig. 9, PRS resource 0 corresponds to control channel resource 0, PRS resource 1 corresponds to control channel resource 1, and so on. It is assumed that the first communication device receives first side-link positioning reference signals (which may be referred to as positioning reference signal 0, positioning reference signal 1, positioning reference signal 2, positioning reference signal 5, and positioning reference signal 6, respectively, on PRS resource 0, positioning reference signal 0 being received on PRS resource 1, and so on) and corresponding first side-link control channels on PRS resource 2, PRS resource 5, and PRS resource 6 on time slot n, and that the first communication device does not receive information on PRS resource 3, PRS resource 4, PRS resource 7, and on control channel resources corresponding to those PRSs for a first period of time. It is assumed that the first communication device measures signal qualities of positioning reference signal 0, positioning reference signal 1, positioning reference signal 2, positioning reference signal 5 and positioning reference signal 6 and that the signal qualities of these positioning reference signals are all smaller than a first signal quality threshold. Then, the first communication device may determine that the first resource does not include PRS resource 0, PRS resource 1, PRS resource 2, PRS resource 5, and PRS resource 6. Since the first communication device does not receive information on PRS resources 3, 4, 7, the first communication device may confirm that PRS resources 3, 4, 7 are also available within a second time window. In other words, PRS resource 0, PRS resource 1, PRS resource 2, PRS resource 5, and PRS resource 6 and corresponding control channel resources are reserved within a second time window, but PRS resource 0, PRS resource 1, PRS resource 2, PRS resource 5, and PRS resource 6 and corresponding control channel resources do not belong to a first resource that needs to be excluded because signal qualities of positioning reference signal 0, positioning reference signal 1, positioning reference signal 2, positioning reference signal 5, and positioning reference signal 6 are less than a first signal quality threshold; while PRS resource 3, PRS resource 4, PRS resource 7 and corresponding control channel resources are not reserved within a second time window. In this case, according to the frequency code resources occupied by the control channel resources 0 to 7, the control channel resources 0 to 7 may be divided into the following sets:

Set S _A1 Including control channel resources 3 and control channel resources 4. The two control channel resources are not reserved in the second time window and the control channel resources that use the same frequency domain resources as the two control channel resources are not reserved in the second time window. In other words, set S _A1 The included side-link control channel resources are not reserved for a second time window and are associated with set S _A1 The side-link control channel resources that contain side-link control channel resources that use the same frequency domain resources are also not reserved for the second time window.

Set S _A2 Including control channel resources 7. Referring to fig. 9 and the above assumption, control channel resource 2 uses the same frequency domain resource as control channel resource 7, and control channel resource 2 has been reserved within the second time window. In other words, set S _A2 The frequency code resources of the side-link control channel resources included are not reserved in the second time window, but are associated with set S _A2 The side-uplink control channel resources that contain side-uplink control channel resources that use the same frequency domain resources are reserved within a second time window.

Set S _A3 Including control channel resource 2. Ginseng radix Referring to fig. 9 and the above assumption, the control channel resource 2 uses the same frequency domain resource as the control channel resource 7, the control channel resource 2 has been reserved in the second time window, but the control channel resource 7 using the same frequency domain resource as the control channel resource 2 is not reserved in the second time window. In other words, set S _A3 The frequency code resources of the side-link control channel resources included are reserved in a second time window, but with set S _A3 The side-uplink control channel resources that contain side-uplink control channel resources that use the same frequency domain resources are not reserved for the second time window.

Set S _A4 Including control channel resources 0,1,5,7. Both control channel resource 0 and control channel resource 5 are reserved within the second time window, and the frequency domain resources of control channel resource 0 and control channel resource 5 are the same. Similarly, both control channel resource 1 and control channel resource 7 are reserved within the second time window, and the frequency domain resources of control channel resource 1 and control channel resource 7 are the same. In other words, set S _A4 The frequency code resources of the side-link control channel resources are reserved in the second time window and are matched with the set S _A4 The side-uplink control channel resources that contain side-uplink control channel resources that use the same frequency domain resources are also reserved within the second time window.

If set S _A4 The time domain resources of the plurality of side-uplink control channel resources using the same frequency domain resource are also the same, and then the side-uplink control channel resources having the time domain resources are third resources. Also taking control channel 0,1,5,7 as an example, if the time domain resources of control channel resource 0 and control channel resource 5 are also the same, the time domain resources of control channel resource 1 and control channel resource 7 are also the same. Then the third resource may be considered to comprise control channel resource 0,1,5,7.

The third resource may also include reference signal resources corresponding to a plurality of side-uplink control channel resources in some embodiments. Also taking fig. 9 as an example, the third resources can also include PRS resources 0,1,5,7.

In some embodiments, set S _A3 The included control channel resources may also be excluded from the candidate resources. In other words, the candidate resource may not include set S _A3 Control channel resources are included.

In some embodiments, set S _A3 The reference signal resources corresponding to the included control channel resources may also be excluded. In other words, the candidate resource may not include set S _A3 And the included reference signal resource corresponding to the control channel resource.

In some embodiments, set S _A2 The included control channel resources may also be excluded from the candidate resources. In other words, the candidate resource may not include set S _A2 Control channel resources are included.

In some embodiments, set S _A2 The reference signal resources corresponding to the included control channel resources may also be excluded. In other words, the candidate resource may not include set S _A2 And the included reference signal resource corresponding to the control channel resource.

Set S _A1 The contained resource may be considered the cleanest resource. Thus, the first communication device may exclude the second resource, set S _A2 The resources contained, set S _A3 Contained resources and collections S _A4 And obtaining the candidate resources by the contained resources. In this case, the candidate resources may include only set S _A1 And the resources contained.

If the number of candidate resources is less than a candidate resource threshold, the first communication device may combine the set S _A2 The included resources are added to the candidate resources.

If set S _A2 After the included resources are added to the candidate resources, the number of candidate resources is still less than the candidate resource threshold, then the first communication device may compare the set S _A3 The included resources are added to the candidate resources.

If set S _A2 Sum set S _A3 After all the included resources are added to the candidate resources, the number of candidate resources is still smaller than the threshold of candidate resources, and the first communication device can then combine the set S _A4 Comprising materialsThe source is added to the candidate resource.

If set S _A2 Set S _A3 Sum set S _A4 After the included resources are added to the candidate resources, the number of the candidate resources is still smaller than the threshold of the candidate resources, and then the first communication equipment can raise the first signal quality threshold and re-determine the first resources according to the raised first signal quality threshold.

Alternatively, the candidate resource threshold may be predefined, preconfigured or configured.

Alternatively, assume that the total candidate resources are denoted as M _total The candidate resource threshold may be expressed as th×m _total . Wherein Th is a real number greater than 0 and less than 1. The value of Th is configurable, or predefined. E.g., th= 0.2,0.4,0.5, etc.

In some embodiments, the first communication device excludes the second resource to obtain the candidate resource, including: the first communication device excludes the second resource to obtain X ₁ Individual side-link control channel resources and X ₂ Reference signal resources, wherein X is ₂ Each of the reference signal resources and the X ₁ At least one of the individual side-link control channel resources corresponds to, and the X ₂ Frequency domain resources of the reference signal resources are different, X ₁ And X ₂ Is a positive integer; the first communication device is according to X ₁ Individual side-link control channel resources and X ₂ Determining the candidate resources including X ₂ Individual side-link control channel resources and the X ₂ Reference signal resource, X ₂ Individual side-link control channel resources and the X ₂ The reference signal resources are in one-to-one correspondence.

Taking fig. 8 as an example, for convenience of description, the first side uplink positioning reference signal resources having the frequency code indexes of 0 to 11 may be respectively referred to as: positioning reference signal resource 0 to positioning reference signal resource 11; the sidelink control channel resources with frequency domain resource indexes of 0 to 9 are respectively called as: control channel resources 0 through 9. It is assumed that the signal quality of the positioning reference signal 0 to the positioning reference signal 11 (i.e. the positioning reference signals received on the positioning reference signal resource 0 to the positioning reference resource 11) is smaller than the first signal quality threshold. Then neither the resources of the positioning reference signal resource 0 to the positioning reference signal resource 11 nor the corresponding resources of the control channel resource 0 to the control channel resource 9 belong to the first resource.

As shown in fig. 8, control channel resources 0 to 9 correspond to positioning reference signal resources 0 to 9, respectively, wherein RE offset values of positioning reference signals corresponding to control channel resources 0, 4 and 8 are the same (all are 0); the RE offset values of the positioning reference signals corresponding to the control channel resource 1, the control channel resource 5 and the control channel resource 9 are the same (all are 1); the RE offset values of the positioning reference signals corresponding to the control channel resource 2 and the control channel resource 6 are the same (are 3); the RE offset values of the positioning reference signals corresponding to the control channel resource 1, the control channel resource 3 and the control channel resource 7 are the same (all are 4). In other words, in fig. 8, the frequency domain resource (i.e., RE offset value) of one reference signal resource may correspond to a plurality of control channel resources. In this case, one control channel resource may be selected from among the plurality of control channel resources, and the remaining control channel resources may be excluded from the candidate resources. Also taking fig. 8 as an example, control channel resource 0, control channel resource 1, and control channel resource 3 may be selected as candidate resources, excluding the control channel resources 4 to 9 sources from the candidate resources. Such that the candidate resources include control channel resources 0 through 3 and corresponding positioning reference signal resources 0 through 3. If the number of resources contained in the candidate resources is less than the candidate resource threshold, the excluded control channel resources can be added to the candidate resources; if the number of candidate resources is still smaller than the threshold after the excluded control channel resources are added, the first signal quality threshold can be raised, and the first resource can be redetermined according to the raised first signal quality threshold.

Optionally, in some embodiments, the first communication device performs a first time window on the M side-link control channels and/or the M first side-link positioning parametersThe method comprises the steps of measuring the test signal to determine a first resource, including: the first communication device measures the M side-link control channels to obtain a second measurement result, wherein the second measurement result comprises M of the M side-link control channels ₂ Signal quality of individual side-link control channels, M ₂ Is a positive integer less than or equal to M; the first communication device determining the first resource based on a second signal quality threshold and the second measurement result, the first resource including a first side-link control channel resource and a reference signal resource corresponding to the first side-link control channel resource, the first side-link control channel resource being the M ₂ Resources of the side uplink control channels in the respective side uplink control channels having a signal quality above the second signal quality threshold. The first side-link control channel resource may include one side-link control channel resource or may include a plurality of side-link control channel resources.

In other words, in the above embodiment, the first communication device may measure only the signal quality of the side uplink control channel to determine the first resource. Specifically, the first communication device screens out a side uplink control channel with signal quality higher than a signal quality threshold according to the measurement result; then, according to the corresponding relation between the side uplink control channel resource and the reference signal resource, determining the reference signal resource corresponding to the screened side uplink control channel; the first resource is finally obtained, where the first resource includes a side-link control channel (i.e., a first side-link control channel resource) with a signal quality above a signal quality threshold and a corresponding reference signal resource.

The specific implementation manner of determining the reference signal resource corresponding to the first side uplink control channel resource by the first communication device is similar to the specific implementation manner of determining the side uplink control channel resource corresponding to the first reference signal resource by the first communication device, and for brevity, will not be described herein.

As described above, M ₂ Is a positive integer less than or equal to M. That is, in some embodiments, the second measurement result includes a side-downlink control channelThe number of signal qualities may be equal to or less than the number of measured side-uplink control channels.

For example, in some embodiments, the first communication device may put the measurement result for each of the M side uplink control channels into the second measurement result. In this case M is equal to M ₂ 。

As another example, in other embodiments, the first communication device may delete some (e.g., one, two, or more) of the measurements after measuring the M side uplink control channels. Only the undeleted measurement results are included in the second measurement results. In this case, M ₂ Less than M. For example, the first communication device obtains signal quality of M side-link control channels after measuring the M side-link control channels. The first communication device may determine one or more signal quality measurements of better or best signal quality among the signal qualities of the M side uplink control channels. Obtaining M-M which is not excluded ₂ And the measurement results. In other words, the first communication device may consider the resource corresponding to one or more signal qualities with the lowest or lower quality of the M signal qualities as a resource that need not be excluded. The first communication device can thus exclude these signal qualities from the measured signal qualities of the M side-link control channels, the remaining M ₁ The signal quality of the individual side-link control channels is the signal quality comprised by the second measurement result.

Optionally, the first communication device excludes the second resource to obtain the candidate resource, including: the first communication device excludes a fourth resource and the second resource to obtain the candidate resource, wherein the fourth resource comprises at least two side-link control channel resources with signal quality lower than the second signal quality threshold, and the time-frequency resources of the at least two side-link control channel resources are the same.

The fourth resource is similar to the third resource in the above embodiment, and differs from the third resource in that the fourth resource includes a side-uplink control channel with a signal quality below the second quality threshold. The specific manner of determining the fourth resource may be referred to the above embodiment of determining the third resource, which is not described herein for brevity.

Optionally, in some embodiments, the first communication device measures M side uplink control channels and/or M first side uplink positioning reference signals within a first time window, determining the first resource includes: the first communication device measures the M side-link control channels and the M first side-link positioning reference signals to obtain a third measurement result, wherein the third measurement result comprises M of the M side-link control channels ₃ Signal quality sum M of individual side-link control channels ₄ Signal quality of the reference signal resource, M ₄ The reference signal resources respectively carry M of the M first side link positioning reference signals ₄ First side-link positioning reference signals, M ₃ And M ₄ Is a positive integer less than or equal to M; the first communication device determines the first resource based on the third measurement, a third signal quality threshold, and a fourth signal quality threshold.

M side-uplink control channels and M ₃ The relation of the signal quality of the individual side-link control channels can be referred to the M side-link control channels and M in the above embodiment ₂ Signal quality of each side-link control channel, and the M first side-link positioning reference signals and M ₄ The relation of the signal quality of the reference signal resources can be referred to the M first side-link positioning reference signals and M in the above embodiment ₁ The relationship between the signal quality of the reference signal resources is not described in detail herein for brevity.

Optionally, in some embodiments, the determining, by the first communication device, the first resource according to the third measurement result, the third signal quality threshold, and the fourth signal quality threshold includes: the first communication device according to M ₃ Determining a second side-link control channel resource, the second side-link control channel resource being the M, based on the signal quality of the individual side-link control channels and the third signal quality threshold ₃ Sidelink with signal quality above the third signal quality threshold in individual sidelink control channelsA path control channel resource; the first communication device according to M ₄ Determining a second reference signal resource, the second reference signal resource being the M, by signal quality of the reference signal resources and the fourth signal quality threshold ₄ The signal quality of the reference signal resources is higher than the reference signal resource of the fourth signal quality threshold; the first resource determined by the first communication device includes the second side uplink control channel resource and the second reference signal resource. The second reference signal resource may include one reference signal resource or may include a plurality of reference signal resources. The second side-link control channel resources may include one side-link control channel resource or may include a plurality of side-link control channel resources.

The first communication device determining a specific implementation of a reference signal resource corresponding to the second side uplink control channel resource and a specific implementation of a side uplink control channel resource corresponding to the first reference signal resource determined by the first communication device are similar; the specific implementation manner of determining the side uplink control channel resource corresponding to the second reference signal resource by the first communication device is similar to the specific implementation manner of determining the side uplink control channel resource corresponding to the first reference signal resource by the first communication device, and for brevity, will not be described herein.

The above embodiment respectively measures the side-link control channel and the side-link positioning reference signal, and respectively determines the control channel resource and the reference signal resource included in the first resource according to the respective thresholds.

In some embodiments, if the first communication device may measure the sidelink control channel and the sidelink positioning reference signal, respectively, and determine the sidelink control channel resource and the reference signal resource included in the first resource according to the respective thresholds, the first communication device may not need to determine the reference signal resource corresponding to the sidelink control channel resource in the manner of the above-mentioned formulas 1-1 to 1-32. The first communication device may determine the correspondence between the side uplink control channel resource and the reference signal resource by itself, and send the information including the reference signal resource to the receiving device through the corresponding side uplink control channel. The receiving end device may determine the reference signal resources from the received information.

Optionally, in some embodiments, the method further comprises: the first communication device determining a reference signal resource corresponding to the second side uplink control channel resource; the first resource determined by the first communication device also includes a reference signal resource corresponding to the second side uplink control channel resource.

The above embodiment further determines the reference signal resources corresponding to the second side uplink control channel resources after determining the second side uplink reference resources, and adds these resources to the first resources. That is, the first resources in the above embodiment include: a second side uplink control channel resource, a second reference signal resource, and a reference signal resource corresponding to the second side uplink control channel resource.

Optionally, in some embodiments, the method further comprises: the first communication device determining a side uplink control channel resource corresponding to the second reference signal resource; the first resource determined by the first communication device also includes a side uplink control channel resource corresponding to the second reference signal resource.

The above embodiment further determines, after determining the second reference signal resource, side uplink control channel resources corresponding to the second reference signal resource, and adds these resources to the first resource. That is, the first resources in the above embodiment include: a second side-uplink control channel resource, a second reference signal resource, and a side-uplink control channel resource corresponding to the second reference signal resource.

Optionally, in some embodiments, the method further comprises: the first communication device determining a reference signal resource corresponding to the second side uplink control channel resource; the first communication device determining a side uplink control channel resource corresponding to the second reference signal resource; the first resource determined by the first communication device further includes: a reference signal resource corresponding to the second side uplink control channel resource, and a side uplink control channel resource corresponding to the second reference signal resource.

After determining the second reference signal resource, the above embodiment further determines the side uplink control channel resource corresponding to the second reference signal resource, and adds these resources into the first resource; and after determining the second side uplink reference resources, further determining reference signal resources corresponding to the second side uplink control channel resources, and adding the resources to the first resources. That is, the first resources in the above embodiment include: a second sidelink control channel resource, a second reference signal resource, a sidelink control channel resource corresponding to the second reference signal resource, and a reference signal resource corresponding to the second sidelink control channel resource.

For convenience of description, the following set of assumptions S _B-1 Is a set comprising second side uplink control channel resources, set S _B-2 Is a set comprising the second reference signal resource, set S _B-3 Is a set comprising reference signal resources corresponding to the second side uplink control channel resources, set S _B-4 Is a set comprising side uplink control channel resources corresponding to the second reference signal resource.

As can be seen, set S _B-1 Containing side-uplink control channel resources and set S _B-3 The included reference signal resources correspond to a set S _B-2 Included reference signal resources and set S _B-4 The included side-uplink control channel resources correspond. In this case, the first communication device may be according to set S _B-1 Set S _B-3 And the reservation period, determining a first set of resources S1 within the second time window. The first set S1 of resources comprises the set S of frequency code resources _B-1 Sum set S _B-3 The frequency code resources of the contained resources are the same. The first communication device can be according to the set S _B-2 Set S _B-4 And the reservation period, determining a second set of resources S2 within the second time window. The second set S2 of resources comprises the set S of frequency code resources _B-2 Sum set S _B-4 The frequency code resources of the contained resources are the same. The second resources determined by the first communication device include the first set of resources S1 and the second set of resources S2.

If the first communication device determines that the number of candidate resources is less than the candidate resource threshold, the first communication device may determine a third set of resources S3 from the first set of resources S1 and/or the second set of resources S2 and add resources in the third set of resources S3 to the candidate threshold.

For example, in some embodiments, the third set of resources S3 may be any one of the following: the first set of resources S1, the second set of resources S2, the union of the first set of resources S1 and the second set of resources S2, or the union of the first set of resources S1 and the second set of resources S2 minus the intersection of the first set of resources S1 and the second set of resources S2.

In some embodiments, the first communication device measures M side uplink control channels and/or M first side uplink positioning reference signals within a first time window, determining a first resource, comprising: the first communication device measures the M side-link control channels to obtain a fourth measurement result, wherein the fourth measurement result comprises M of the M side-link control channels ₅ Signal quality of individual side-link control channels, M ₅ Is a positive integer less than or equal to M; the first communication device determining a third side-link control channel resource and a third reference signal resource based on a fifth signal quality threshold and the fourth measurement result, wherein the third side-link control channel resource is the M ₅ Side-uplink control channel resources in the individual side-uplink control channels having a signal quality above the fifth signal quality threshold, the third reference signal resource being a reference signal resource corresponding to the third side-uplink control channel resource; the first communication device performs a first reference signal resource allocation for M of the M first side uplink positioning reference signals ₆ Measuring the first side link positioning reference signals to obtain M ₆ Signal quality of a plurality of reference signal resources, where M ₆ The M is respectively borne by the reference signal resources ₆ A first side-link positioning reference signal, M ₆ The reference signal resources do not include the third reference signal resource, M ₆ Is a positive integer less than M; the first communication device based on a sixth signal quality threshold and the M ₆ Signal quality of a plurality of reference signal resources, determining a fourth reference signal resource and a fourth side uplink control channel resource, wherein the fourth reference signal resource is the M ₆ A reference signal resource of which the signal quality is higher than the sixth signal quality threshold in the reference signal resources, wherein the fourth side uplink control channel resource is a side uplink control channel resource corresponding to the fourth reference signal resource; the first resource determined by the first communication device includes: the third side uplink control channel resource, the third reference signal resource, the fourth side uplink control channel resource, and the fourth reference signal resource.

For example, assume that M is equal to 5, i.e., there are 5 side-uplink control channels and 5 first side-uplink positioning reference signals. For ease of description, these 5 sidelink control channels may be referred to as sidelink control channel 1 through sidelink control channel 5, respectively, and these 5 first sidelink positioning reference signals may be referred to as sidelink positioning reference signals 1 through sidelink positioning reference signals 5, respectively. The 5 first side-link positioning reference signals are carried by 5 reference signal resources, respectively. Also, these 5 reference signal resources are referred to as reference signal resource 1 through reference signal resource 5. The resources of the 5 side-link control channels correspond one-to-one with the 5 reference signal resources, i.e. the resources of the side-link control channel 1 correspond to the reference signal resource 1, the resources of the side-link control channel 2 correspond to the reference signal resource 2, and so on. The fourth measurement is assumed to include signal quality for 5 side-uplink control channels. Assume that the signal quality of side-uplink control channel 1 is above the fifth signal quality threshold. The first communication device may determine that the third sidelink control channel resource comprises a resource of sidelink control channel 1 and that the third reference signal resource comprises a reference signal resource 1. The first communication device may then measure the sidelink control channel 2 through the sidelink control channel 5 to obtain the signal quality of the reference signal resources 2 through 5. Assume that the signal quality of reference signal resource 2 and reference signal resource 3 is above the sixth signal quality threshold. In this case, the first communication device may determine that the fourth reference signal resource includes reference signal resource 2 and reference signal resource 3, and determine that the fourth sidelink control channel resource includes resources of sidelink control channel 2 and sidelink control channel 3. Thus, the first resource determined by the first communication device comprises: resources of side-uplink control channel 1, resources of side-uplink control channel 2, resources of side-uplink control channel 3, reference signal resources 1, reference signal resources 2 and reference signal resources 3.

In the above technical solution, the first communication device may screen out resources of the non-conforming side uplink control channel according to the fifth signal quality threshold, and then determine corresponding reference signal resources; then, only the signal quality of the remaining side-link positioning reference signals can be measured, non-conforming reference signal resources can be screened out according to a sixth signal quality threshold, and then the corresponding side-link control channel resources can be determined.

In other embodiments, the first communication device may measure both the M side-link control channels and the M first side-link positioning reference signals, but when compared to a sixth signal quality threshold, only use reference signal resources for which the signal quality of the corresponding side-link control channel is less than the fifth signal quality threshold.

Also with the 5 side-link control channels and 5 first side-link positioning reference signals described above. The first communication device may measure 5 sidelink control channels and 5 first sidelink positioning reference signals to obtain signal quality of the 5 sidelink control channels and signal quality of 5 reference signal resources. The first communication device compares the signal quality of the 5 side-link control channels to the fifth signal quality threshold and determines that the signal quality of the side-link control signal 1 is above the fifth signal quality threshold. Since the corresponding side-uplink control channel 1 of the reference signal resource 1 has been excluded, there is no need to compare the reference signal resource 1 when compared with the sixth signal quality threshold. It is therefore only necessary to compare the signal quality of the reference signal resource 2 to the reference signal resource 5 with the sixth signal quality threshold.

Alternatively, in some embodiments, the first communication device may measure M first side link positioning reference signals according to a sequence. Specifically, the first communication device may measure the received M first side uplink positioning reference signals, and the sequence used for the measurement is the sequence. For ease of description, this sequence may be referred to as a first sequence. As described above, the sequence is generated from the sequence identity. For ease of description, the identification used to generate the first sequence may be referred to as a first sequence identification.

In some embodiments, the first sequence identity may be a sequence identity used to generate the second sidelink location reference signal. In other words, the first communication device may use the sequence identity for generating the self-transmitted side-uplink positioning reference signals to generate a sequence (i.e. the first sequence) for measuring the M first side-uplink positioning reference signals.

Illustratively, in some embodiments, the initial value of the random sequence, c _init The following formula is satisfied:

wherein the method comprises the steps ofRepresenting the number of symbols in a slot, +.>Represents the number of slots in a subframe, l represents the number of symbols of OFDM in a slot, m is an integer, N _ID Identified for the first sequence.

In other embodiments, the initial value of the random sequence, c _init The following formula is satisfied:

wherein the method comprises the steps ofRepresenting the number of symbols in a slot, +.>Represents the number of slots in a subframe, l represents the number of symbols of OFDM in a slot, m is an integer, +.>Identified for the first sequence.

In other embodiments, the first sequence identity may be a predefined, preconfigured or signalling configured sequence identity. The signaling may be from a network device or other communication device. In other words, the first communication device may generate a sequence (i.e., the first sequence) for measuring the M first side-link positioning reference signals according to a predefined, preconfigured or sequence identification configured by signaling.

In other embodiments, the first communication device may measure the M first side uplink positioning reference signals according to M sequences, respectively. For example, the first communication device may measure an i-th first side link positioning reference signal of the M first side link positioning reference signals according to an i-th sequence of the M sequences, i=1, …, M. For ease of description, the M sequences may be referred to as M second sequences. The M second sequences are determined based on the M second sequence identifications, respectively. The ith second sequence of the M second sequences is determined from the ith second sequence identity of the M second sequence identities. The first communication device may obtain the M second sequence identifications from M third communication devices. The M first side uplink positioning reference signals are transmitted by the M third communication devices, respectively. In other words, the first communication device may acquire an i-th second sequence identity indicated by an i-th third communication device of the M third communication devices; determining an ith second sequence according to the ith second sequence identifier; and measuring an ith second side link positioning reference signal in the M first side link positioning reference signals according to the ith second sequence to obtain the signal quality of a reference signal resource used for bearing the ith second side link positioning reference signal.

In some embodiments, the first communication device may obtain M sequence identification information and determine the M second sequence identifications from the M sequence identification information.

The M sequence identification information are respectively from M third communication devices. In other words, the ith sequence identification information in the M sequence identification information comes from the ith third communication device in the M third communication devices.

The ith sequence identity is different from the sequence identity used by the ith third communication device to generate the sidelink positioning reference signal, but the signal quality of the reference signal resource of the sidelink positioning reference signal generated from the ith second sequence determined from the ith sequence identity can reflect the signal quality of the reference signal resource of the ith third communication device to generate the sidelink positioning reference signal. For example, assume that the signal quality of the reference signal resource of the side-uplink positioning reference signal generated from the sequence determined by the sequence identity is Q _ref The ith and the thThe signal quality of the reference signal resource of the side-link positioning reference signal generated by the three communication devices is Q _rel Then Q _ref And Q _rel The following relationship may be: q (Q) _ref ≈Q _rel Alternatively, Q _ref And Q _rel Is a preset value, or Q _ref Is Q _rel Half of the value, etc.

In some embodiments, the second sequence identity may be directly included in the sequence identity information. In other words, the ith sequence identification information includes the ith second sequence identification of the M second sequence identifications. In this way, the first communication device can directly determine that the ith second sequence identity is the sequence identity carried in the sequence identity information.

For example, in some embodiments, including the second sequence identity in the ith sequence identity information may be by the ith third communication device of the M third communication devices self-determining a sequence identity.

In other embodiments, the ith sequence identity may be a sequence identity selected by the ith third communication device from a set of sequence identities. The set of sequence identifications may be predefined, preconfigured or configured by signaling. The set of sequence identifications may include the M second sequence identifications. The ith third communication device selects one sequence identifier which can most reflect the signal quality of the side-link positioning reference signal from the M second sequence identifiers, and sends the selected sequence identifier to the first communication device.

In some embodiments, each second sequence identity in the set of sequence identities may further comprise an index. In other words, the set of sequence identifications may include the M second sequence identifications and M indexes. The M indexes are in one-to-one correspondence with the M second sequence identifications. In this case, the third communication device may directly transmit the index corresponding to the determined second sequence identity to the first communication device. In other words, the sequence identification information may include an index, and the first communication device may determine, from the sequence identification set, a sequence identification corresponding to the index according to the index in the sequence identification information. For example, the mth sequence identification information in the M sequence identification information includes an index i, where the index i is an index of the ith second sequence identification in the sequence identification set. In this way, the first communication device can determine the ith second sequence identity from the set of sequence identities according to index i.

Optionally, in some embodiments, the frequency domain resources when the first communication device measures the first side-link positioning reference signal are determined from the frequency domain resources when the first side-link positioning reference signal is received. In other words, the first communication device measures an i-th first side downlink positioning reference signal of the M first side downlink positioning reference signals on a frequency domain resource i within the first time window, wherein the frequency domain resource i is determined according to a frequency domain resource of the first communication device receiving the i-th first side downlink positioning reference signal, i=1, …, M. For example, in some embodiments, the frequency domain resource i is a frequency domain resource for which the first communication device receives the i-th first side uplink positioning reference signal. As another example, in other embodiments, the starting location of the frequency domain resource i is the same as the starting location of the frequency domain resource where the first communication device receives the i-th first side-link positioning reference signal, and the size of the frequency domain resource i is the same as the frequency domain bandwidth where the first communication device transmits the second side-link positioning reference signal.

Fig. 11 is a schematic block diagram of a communication device according to an embodiment of the present application. The communication device 1100 as shown in fig. 11 includes: a processing module 1101, a transmitting module 1102, and a receiving module 1103. The processing module 1101 may be implemented by a processor, the transmitting module 1102 may be implemented by a transmitter, and the receiving module 1103 may be implemented by a receiver. The communication device 1100 may implement the functions of the first communication device in the above-described embodiments.

The receiving module 1103 is configured to receive at least one first message, where each first message in the at least one first message includes first side-link control information and a first side-link positioning reference signal.

The processing module 1101 is configured to determine candidate resources of a second message according to at least one first side-link control information and/or at least one first side-link positioning reference signal included in the at least one first message, where the second message includes the second side-link control information and the second side-link positioning reference signal.

A sending module 1102, configured to send the second message according to the candidate resource.

The specific functions and advantages of the processing module 1101, the transmitting module 1102 and the receiving module 1103 can be referred to the above embodiments, and will not be described herein for brevity.

Fig. 12 is a schematic block diagram of another communication device provided in accordance with an embodiment of the present application. The communication device 1200 shown in fig. 12 includes: a monitoring module 1201 and a receiving module 1202. The monitoring module 1201 may be implemented by a receiver and the receiving module 1202 may be implemented by a receiver. The communication device 1200 may implement the functions of the second communication device in the above-described embodiment.

The monitoring module 1201 is configured to monitor a second message including second side uplink control information and a second side uplink positioning reference signal at the set of receive resources.

The receiving module 1202 is configured to receive the second message on a candidate resource determined by at least one first side uplink control information and/or at least one first side uplink positioning reference signal, the set of receiving resources comprising the candidate resource.

Specific functions and advantages of the monitoring module 1201 and the receiving module 1202 may be referred to the above embodiments, and will not be described herein for brevity.

Fig. 13 is a block diagram of a communication device according to an embodiment of the present application. The communication apparatus 1300 shown in fig. 13 includes a processor 1301, and the processor 1301 can be used to process a communication protocol and communication data, control the communication apparatus, execute a software program, process data of the software program, and the like.

Optionally, the communications device 1300 may also include a memory 1302. The memory 1302 is mainly used for storing software programs and data.

Optionally, the communications device 1300 may also include a transceiver 1303. The transceiver may also be referred to as a transceiver unit, transceiver device, etc. Alternatively, the device for implementing the receiving function in the transceiver 1303 may be regarded as a receiving module, and the device for implementing the transmitting function in the transceiver 1303 may be regarded as a transmitting module, i.e. the transceiver 1303 includes a receiving module and a transmitting module. The receiving module may also be sometimes referred to as a receiver, or receiving circuit, etc. The transmitting module may also sometimes be referred to as a transmitter, transmitter or transmitting circuit, etc.

Alternatively, the communication apparatus 1300 may be a terminal device or an apparatus (e.g., a chip, a circuit, etc.) for a terminal device.

Alternatively, the communications apparatus 1300 can be a network device or an apparatus (e.g., a chip, a circuit, etc.) for a network device.

If the communication apparatus 1300 is a terminal device or a network device, the communication apparatus 1300 may further include a radio frequency circuit and an antenna. The radio frequency circuit is mainly used for converting a baseband signal and a radio frequency signal and processing the radio frequency signal. The antenna is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves. An antenna and a radio frequency circuit having a transmitting and receiving function can be regarded as the transceiver 1303 of the communication apparatus 1300.

If the communication apparatus 1300 is an apparatus (e.g., a chip, a circuit, etc.) for a terminal device or a network device, the communication apparatus 1300 may further include an input-output interface. The input-output interface may be used to obtain data and send the obtained data to the processor 1301 and/or the memory 1302. The input-output interface may also be used to send data generated by the processor 1301 to other devices.

For ease of illustration, only one memory and processor is shown in fig. 13. In an actual product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or storage device, etc. The memory may be provided separately from the processor or may be integrated with the processor, which is not limited by the embodiments of the present application.

The processor 1301, memory 1302 and transceiver 1303 communicate with each other via internal communication paths to transfer control and/or data signals

The method disclosed in the embodiments of the present application may be applied to the processor 1301 or implemented by the processor 1301. Processor 1301 may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the method described above may be performed by integrated logic circuitry in hardware in processor 1301 or instructions in software.

The processor described in the various embodiments of the present application may be a general purpose processor, a digital signal processor (digital signal processor, DSP), an application specific integrated circuit (application specific integrated circuit, ASIC), an off-the-shelf programmable gate array (field programmable gate array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in hardware, in a decoded processor, or in a combination of hardware and software modules in a decoded processor. The software modules may be located in a memory medium well known in the art such as random access memory (random access memory, RAM), flash memory, read-only memory (ROM), programmable read-only memory, or electrically erasable programmable memory, registers, and the like. The storage medium is located in a memory, and the processor reads instructions from the memory and, in combination with its hardware, performs the steps of the method described above.

Alternatively, in some embodiments, the memory 1302 may store instructions for performing a method performed by the first communication device of the methods described above. Processor 1301 may execute instructions stored in memory 1302 in conjunction with other hardware (e.g., transceiver 903) to perform the steps performed by the first communication device in the method described above. The specific operation and benefits of processor 1301 may be found in the description of the method embodiments described above. If the communication apparatus 1300 is not provided with a memory 1302, the processor 1301 may be coupled to a memory storing instructions for performing the method performed by the first communication device as in the method described above.

Alternatively, in some embodiments, the memory 1302 may store instructions for performing a method performed by the second communication device of the methods described above. Processor 1301 may execute instructions stored in memory 1302 in conjunction with other hardware (e.g., transceiver 903) to perform the steps performed by the second communication device in the method described above. The specific operation and benefits of processor 1301 may be found in the description of the method embodiments described above. If the communication apparatus 1300 is not provided with a memory 1302, the processor 1301 may be coupled to a memory storing instructions for performing the method performed by the second communication device as in the method described above.

Embodiments also provide a chip system including a logic circuit for coupling with an input/output interface through which data is transferred. The chip system may perform the method of the first communication device in the method embodiment described above.

The present application also provides a computer readable storage medium having instructions stored thereon, which when executed perform the method of the first communication device in the method embodiment.

The present application also provides a computer program product comprising instructions which, when executed, perform the method of the first communication device of the method embodiment described above.

Embodiments also provide a chip system including a logic circuit for coupling with an input/output interface through which data is transferred. The chip system may perform the method of the second communication device in the method embodiment described above.

The embodiment of the application further provides a computer readable storage medium, on which instructions are stored, which when executed perform the method of the second communication device in the method embodiment.

The present application also provides a computer program product comprising instructions which, when executed, perform the method of the second communication device in the method embodiment described above.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated in one processing module, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of transmitting information, comprising:

the first communication device receives at least one first message, each of the at least one first message comprising first side-link control information and first side-link positioning reference signals;

the first communication device determines candidate resources of a second message according to at least one first side link control information and/or at least one first side link positioning reference signal included in the at least one first message, wherein the second message comprises second side link control information and a second side link positioning reference signal;

the first communication device sends the second message according to the candidate resource.

2. The method according to claim 1, wherein the first communication device determining candidate resources for a second message based on at least one first side-link control information and/or at least one first side-link positioning reference signal comprised by the at least one first message comprises:

The first communication device measures M side-link control channels and/or M first side-link positioning reference signals in a first time window, and determines a first resource, wherein the first resource comprises a resource with signal quality higher than a signal quality threshold, M first side-link control information is respectively carried on the M side-link control channels, the at least one first side-link control information comprises the M first side-link control information, the at least one first side-link positioning reference signal comprises the M first side-link positioning reference signals, and M is a positive integer;

the first communication device determines the candidate resource according to the first resource, wherein the candidate resource is located in a second time window, and the second time window is located after the first time window.

3. The method of claim 2, wherein the first communication device determining the candidate resource from the first resource comprises:

the first communication device determines a reservation period according to the M pieces of first side uplink control information;

the first communication equipment determines a second resource according to the first resource and the reserved period, wherein the second resource is positioned in the second time window;

And the first communication equipment excludes the second resource to obtain the candidate resource.

4. A method according to claim 2 or 3, wherein the first communication device measures M side-uplink control channels and/or M first side-link positioning reference signals within a first time window, determining a first resource, comprising:

the first communication device measures the M first side link positioning reference signals to obtain a first measurement result, wherein the first measurement result comprises M ₁ Signal quality of the reference signal resource, M ₁ The reference signal resources respectively bear M of the M first side link positioning reference signals ₁ First side-link positioning reference signals, M ₁ Is a positive integer less than or equal to M;

the first communication device determines the first resource according to a first signal quality threshold and the first measurement result, wherein the first resource comprises a first reference signal resource and a side uplink control channel resource corresponding to the first reference signal resource, and the first reference signal resource is the M ₁ And the signal quality of the reference signal resources is higher than that of the reference signal resources of the first signal quality threshold.

5. A method according to claim 3, wherein the first communication device excludes the second resource to obtain the candidate resource, comprising:

the first communication device excludes a third resource and the second resource to obtain the candidate resource, wherein the third resource is located in the second time window, the third resource comprises resources of a plurality of side uplink control channels, and time-frequency resources of the plurality of side uplink control channels are the same.

6. A method according to claim 3, wherein the first communication device excludes the second resource to obtain the candidate resource, comprising:

the first communication equipment excludes the second resource to obtain X ₁ Individual side-link control channel resources and X ₂ A plurality of reference signal resources, wherein the X ₂ Each of the reference signal resources is associated with the X ₁ At least one of the individual side-link control channel resourcesCorrespondingly, and said X ₂ Frequency domain resources of the reference signal resources are different, X ₁ And X ₂ Is a positive integer;

the first communication device is according to X ₁ Individual side-link control channel resources and X ₂ Determining the candidate resources including X ₂ Individual side-link control channel resources and the X ₂ Reference signal resources, X ₂ Individual side-link control channel resources and the X ₂ The reference signal resources are in one-to-one correspondence.

7. A method according to claim 2 or 3, wherein the first communication device measures M side-uplink control channels and/or M first side-link positioning reference signals within a first time window, determining a first resource, comprising:

the first communication device measures the M side uplink control channels to obtain a second measurement result, wherein the second measurement result comprises M of the M side uplink control channels ₂ Signal quality of individual side-link control channels, said M ₂ Is a positive integer less than or equal to M;

the first communication device determines the first resource according to a second signal quality threshold and the second measurement result, wherein the first resource comprises a first side link control channel resource and a reference signal resource corresponding to the first side link control channel resource, and the first side link control channel resource is the M ₂ And resources of the side uplink control channels in the individual side uplink control channels having a signal quality above the second signal quality threshold.

8. The method of claim 7, wherein the first communication device excludes the second resource to obtain the candidate resource, comprising:

the first communication device excludes a fourth resource and the second resource to obtain the candidate resource, wherein the fourth resource comprises at least two side-link control channel resources with signal quality lower than the second signal quality threshold, and the time-frequency resources of the at least two side-link control channel resources are the same.

9. A method according to claim 2 or 3, wherein the first communication device measures M side-uplink control channels and/or M first side-link positioning reference signals within a first time window, determining a first resource, comprising:

the first communication device measures the M side-link control channels and the M first side-link positioning reference signals to obtain a third measurement result, wherein the third measurement result comprises M of the M side-link control channels ₃ Signal quality sum M of individual side-link control channels ₄ Signal quality of the reference signal resource, M ₄ The reference signal resources respectively bear M of the M first side link positioning reference signals ₄ First side-link positioning reference signals, M ₃ And M ₄ Is a positive integer less than or equal to M;

the first communication device determines the first resource according to the third measurement result, the third signal quality threshold and the fourth signal quality threshold.

10. The method of claim 9, wherein the first communication device determining the first resource based on the third measurement, a third signal quality threshold, and a fourth signal quality threshold comprises:

the first communication device is according to the M ₃ Determining a second side-link control channel resource, said second side-link control channel resource being said M, from a signal quality of the individual side-link control channels and said third signal quality threshold ₃ Side uplink control channel resources in the individual side uplink control channels having a signal quality above the third signal quality threshold;

the first communication device is according to the M ₄ Determining a signal quality of the reference signal resource and the fourth signal quality thresholdTwo reference signal resources, the second reference signal resource being the M ₄ The signal quality of the reference signal resources is higher than the reference signal resource of the fourth signal quality threshold;

The first resource determined by the first communication device includes the second side uplink control channel resource and the second reference signal resource.

11. The method according to claim 9, wherein the method further comprises:

the first communication device determining a reference signal resource corresponding to the second side uplink control channel resource;

the first resource determined by the first communication device further includes a reference signal resource corresponding to the second side uplink control channel resource.

12. The method according to claim 9, wherein the method further comprises:

the first communication device determining a side uplink control channel resource corresponding to the second reference signal resource;

the first resource determined by the first communication device further includes a side uplink control channel resource corresponding to the second reference signal resource.

13. The method according to claim 9, wherein the method further comprises:

The first resource determined by the first communication device further includes: and a reference signal resource corresponding to the second side uplink control channel resource, and a side uplink control channel resource corresponding to the second reference signal resource.

14. The method of claim 13, wherein the first communication device determining a second resource based on the first resource and the reservation period comprises:

the first communication device determines a first resource set S1 in the second time window according to the second side uplink control channel resource, the reference signal resource corresponding to the second side uplink control channel resource and the reservation period;

the first communication device determines a second resource set S2 in the second time window according to the second reference signal resource, the side uplink control channel resource corresponding to the second reference signal resource and the reservation period;

the second resources determined by the first communication device include the first set of resources S1 and the second set of resources S2.

15. The method of claim 14, wherein the method further comprises:

the first communication device determines that the candidate resources comprise a third set of resources S3, the third set of resources S3 being determined from the first set of resources S1 and/or the second set of resources S2, if it is determined that the number of candidate resources is smaller than a candidate resource threshold.

16. The method according to claim 15, wherein the third set of resources S3 is at least one of:

the first set of resources S1,

the second set of resources S2,

the union of the first set of resources S1 and the second set of resources S2, or,

the union of the first set of resources S1 and the second set of resources S2 minus the intersection of the first set of resources S1 and the second set of resources S2.

17. The method according to any one of claims 4 to 6, 9 to 16,

the signal quality of the ith reference signal resource in the signal quality of the M reference signal resources is determined according to the energy sum of REs occupied by the ith first side link positioning reference signal in the M first side link positioning reference signals, the resources of the ith first side link positioning reference signal in each symbol are T REs in t×n REs, one RE occupied by the ith first side link positioning reference signal is located in each N REs, T is a number greater than zero, and N is a positive integer, i=1, …, M.

18. The method according to any of claims 4 to 17, wherein the sidelink control channel resources comprise frequency domain resources and/or sequence parameters of the sidelink control channel and the reference signal resources comprise frequency domain resources and/or sequence parameters of the sidelink positioning reference signal.

19. The method according to any of claims 2 to 18, wherein before the first communication device measures M side-link control channels and/or M first side-link positioning reference signals within a first time window, the method further comprises:

the first communication device acquires indication information for instructing the first communication device to measure at least one of the following information: the M side uplink control channels, the M first side uplink positioning reference signals.

20. The method according to claim 19, wherein the indication information is used to instruct the first communication device to measure the M first side-link positioning reference signals in case the total number of resources of the side-link control channel is greater than the total number of resources of the side-link positioning reference signals;

the indication information is used to instruct the first communication device to measure the M sidelink control channels in case the total number of resources of the sidelink control channels is less than the total number of resources of the sidelink positioning reference signals.

21. The method of any of claims 2-6, 9-20, wherein the first communication device making measurements of the M first side-link positioning reference signals within the first time window comprises:

The first communication equipment determines a first sequence according to the first sequence identifier;

the first communication device measures the M first side uplink positioning reference signals according to the first sequence.

22. The method of claim 21, wherein the first sequence identity is a sequence identity used to generate the second sidelink positioning reference signal; or,

the first sequence identity is a predefined, preconfigured or signalling configured sequence identity.

23. The method of any of claims 2-6, 9-20, wherein the first communication device making measurements of the M first side-link positioning reference signals within the first time window comprises:

the first communication device obtains M second sequence identifiers, the M second sequence identifiers are respectively indicated by M third communication devices, and the M first side link positioning reference signals are respectively from the M third communication devices;

the first communication device determines an ith second sequence in the M second sequences according to the ith second sequence identifier in the M second sequence identifiers, wherein i=1, … and M;

the first communication device measures an i-th one of the M first side link positioning reference signals according to the i-th one of the M second sequences.

24. The method of claim 23, wherein the first communication device obtaining M second sequence identifications comprises:

the first communication device determines the M second sequence identifications according to M sequence identification information from the M third communication devices, respectively,

the ith sequence identification information of the M sequence identification information includes the ith second sequence identification, or,

the ith sequence identity information in the M sequence identity information comprises an index i, which is an index of the ith second sequence identity in a sequence identity set, which is predefined, preconfigured or configured by signaling.

25. The method of any of claims 2-6, 9-24, wherein the first communication device making measurements of the M first side-link positioning reference signals within the first time window comprises:

the first communication device measures an ith first side link positioning reference signal of the M first side link positioning reference signals on a frequency domain resource i within the first time window, where the frequency domain resource i is a frequency domain resource where the first communication device receives the ith first side link positioning reference signal, i=1, …, M.

26. A method of transmitting information, comprising:

the second communication device monitors a second message at the receiving resource set, the second message including second side uplink control information and a second side uplink positioning reference signal;

the second communication device receives the second message on candidate resources determined by at least one first side-link control information and/or at least one first side-link positioning reference signal, the set of received resources comprising the candidate resources.

27. The method of claim 26, wherein the candidate resources are determined based on first resources comprising resources having a signal quality above a signal quality threshold.

28. The method of claim 27, wherein the candidate resources do not include a second resource that is located within the second time window, the second resource being determined from the first resource.

29. The method of claim 27 or 28, wherein the first resource comprises a first reference signal resource and a side-link control channel resource corresponding to the first reference signal resource, the first reference signal resource being M ₁ Reference signal resources, M, of the plurality of reference signal resources having a signal quality above a first signal quality threshold ₁ Is a positive integer, M in the at least one first side-link positioning reference signal ₁ The first side link positioning reference signals are respectively carried on the M ₁ Reference signal resources.

30. The method of claim 28, wherein the candidate resources further do not include a third resource, the third resource being within the second time window, the third resource including resources of a plurality of side-uplink control channels, the time-frequency resources of the plurality of side-uplink control channels being the same.

31. The method of claim 28, wherein the candidate resources comprise X ₂ Individual side-link control channel resources and X ₂ Reference signal resources, X ₂ Individual side-link control channel resources and the X ₂ The reference signal resources are in one-to-one correspondence, the X ₂ Frequency domain resources of the reference signal resources are different, X ₂ Is a positive integer.

32. A method according to claim 27 or 28, characterized in thatThe first resource includes a first side-link control channel resource and a reference signal resource corresponding to the first side-link control channel resource, the first side-link control channel resource is M ₂ Resources of a side-link control channel having a signal quality above said second signal quality threshold in a respective side-link control channel, M in said at least one first side-link control information ₂ First side-link control information is respectively carried on the M ₂ Individual side-link control channels, M ₂ Is a positive integer.

33. The method of claim 32, wherein the candidate resources further do not include a fourth resource, the fourth resource comprising at least two side-link control channel resources having a signal quality below the second signal quality threshold, the time-frequency resources of the at least two side-link control channel resources being the same.

34. The method according to claim 27 or 28, wherein the first resources comprise second side-link control channel resources and second reference signal resources, the second side-link control channel resources being M ₃ Side-uplink control channel resources in the individual side-uplink control channels having a signal quality above a third signal quality threshold, the second reference signal resource being M ₄ Reference signal resources of the plurality of reference signal resources having a signal quality above a fourth signal quality threshold, M in the at least one first side uplink control information ₃ First side-link control information is respectively carried on the M ₃ M in the at least one first side-link positioning reference signal ₄ The first side link positioning reference signals are respectively carried on the M ₄ Reference signal resource, M ₃ And M ₄ Is a positive integer.

35. The method of claim 34, wherein the first resource further comprises a reference signal resource corresponding to the second side uplink control channel resource.

36. The method of claim 34, wherein the first resource further comprises a side-uplink control channel resource corresponding to the second reference signal resource.

37. The method of claim 34, wherein the first resource further comprises: and a reference signal resource corresponding to the second side uplink control channel resource, and a side uplink control channel resource corresponding to the second reference signal resource.

38. The method of claim 37, the second resources comprising a first set of resources and a second set of resources, the first set of resources determined from the second side uplink control channel resources, reference signal resources corresponding to the second side uplink control channel resources, and the reservation period, the second set of resources determined from the second reference signal resources, side uplink control channel resources corresponding to the second reference signal resources, and the reservation period.

39. The method according to claim 38, wherein the candidate resources comprise a third set of resources, the third set of resources S3 being determined from the first set of resources S1 and/or the second set of resources S2.

40. The method of claim 39, wherein the third set of resources is at least one of:

the first set of resources S1,

the second set of resources S2,

41. The method of any one of claims 29 to 31, 34 to 40,

42. A communication device, the communication device comprising:

means for performing the method of any one of claims 1 to 25; or alternatively

Means for performing the method of any one of claims 26 to 41.

43. A communication device, comprising: a processor;

the processor configured to execute a computer program stored in a memory to cause the communication apparatus to perform the communication method of any one of claims 1 to 25 or to cause the communication apparatus to perform the communication method of any one of claims 26 to 41.

44. The apparatus of claim 43, further comprising the memory.

45. A computer readable storage medium having instructions stored therein which, when executed on a computer, cause the computer to perform the method of any one of claims 1 to 25 or cause the computer to perform the method of any one of claims 26 to 41.

46. A chip system comprising logic circuitry for coupling with an input/output interface through which data is transferred to perform the method of any one of claims 1 to 25 or to perform the method of any one of claims 26 to 41.

47. A computer program product, characterized in that the computer program product comprises computer program code which, when run on a computer, causes the computer to perform the method of any one of claims 1 to 25 or causes the computer to perform the method of any one of claims 26 to 41.