A method and apparatus for positioning reference signal (PRS) association

Abstract

The application provides a positioning reference signal (PRS) association method and a communication device. The method comprises the following steps: a terminal device receives second configuration information sent by a positioning management device, the second configuration information indicating an association relationship between PRSs on at least two frequency points; and the terminal device measures the PRSs with the association relationship. The PRSs with the association relationship share an antenna port, or the PRSs with the association relationship have a phase difference. Through implementation of the application, the configuration of a large-bandwidth PRS can be realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of positioning, in particular to a method for associating positioning reference signals (PRS) and a communication device. BACKGROUND

[0002] In a mobile communication system, positioning of a terminal device is one of the important functions. Current positioning technologies include downlink positioning technology and uplink positioning technology. The so-called downlink positioning technology refers to that an access network device sends a downlink reference signal to a terminal device. The downlink reference signal can be a positioning reference signal (PRS). The terminal device measures the downlink reference signal and sends the measurement result to a positioning management device, and the positioning management device determines the positioning information of the terminal device based on the measurement result.

[0003] However, it is found in practice that the positioning accuracy of the current positioning technology in a low-frequency communication system is not high. The main reason is that the maximum bandwidth of a single PRS in a low-frequency NR communication system is 100 MHz, and the accuracy of a positioning method based on timing ranging is directly related to the bandwidth. Generally speaking, the greater the PRS bandwidth, the higher the ranging accuracy. Therefore, how to enhance the existing PRS configuration structure to realize the configuration of a large bandwidth PRS and thus improve the positioning accuracy is a problem to be solved at present. SUMMARY

[0004] The present application provides a method for associating PRS and a communication device, which can realize the configuration of a large bandwidth PRS.

[0005] In a first aspect, the present application provides a method for associating PRS, which comprises: a terminal device receiving second configuration information sent by a positioning management device, the second configuration information indicating the association relationship between PRSs on at least two frequency points; and the terminal device measuring the PRSs having the association relationship; wherein the PRSs having the association relationship share the same antenna port or the PRSs having the association relationship have a phase difference.

[0006] In the method described in the first aspect, the network side can configure the terminal device which PRSs share the same antenna port or which PRSs have a phase difference. If multiple PRSs share the same antenna port, it means that the multiple PRSs experience the same channel, which can be equivalently regarded as that the network device sends a new PRS, and the bandwidth of the new PRS is equal to the sum of the bandwidths of the multiple PRSs. Therefore, making multiple PRSs share the same antenna port can expand the signal bandwidth. Therefore, by configuring the terminal device which PRSs share the same antenna port, the configuration of a large bandwidth PRS can be realized. By configuring the terminal device which PRSs have a phase difference, the terminal device can estimate the phase difference between the PRSs, and then compensate the channel phase of the PRSs through the phase difference, so as to make multiple PRSs share the same antenna port to expand the signal bandwidth. Therefore, by configuring the terminal device which PRSs have a phase difference, the configuration of a large bandwidth PRS can also be realized.

[0007] In a possible implementation, the second configuration information further indicates that the PRSs having the association relationship share the same antenna port, or the PRSs having the association relationship have a fixed phase difference. Based on this possible implementation, the network side can flexibly configure the terminal device with the type of the association relationship.

[0008] In a possible implementation, during the measurement of the terminal device on the PRSs having the association relationship, the phase difference between the PRSs having the association relationship is a fixed value. Alternatively, during the measurement of the terminal device on the PRSs having the association relationship, the phase difference between the PRSs having the association relationship changes little, which can also be understood as that during the measurement of the terminal device on the PRSs having the association relationship, the phase difference between the PRSs having the association relationship is a fixed value. By making the phase difference between the PRSs having the association relationship a fixed value during the measurement of the terminal device on the PRSs having the association relationship, the terminal device can accurately estimate the phase difference between the PRSs having the association relationship.

[0009] In a possible implementation, the second configuration information indicates the association relationship between the PRSs on at least two frequency points in a manner that: the second configuration information indicates the association relationship between PRS resources on at least two frequency points. That is, the second configuration information can indicate the association relationship between the PRSs on at least two frequency points by indicating the association relationship between the PRS resources on at least two frequency points, which can accurately and finely indicate the association relationship between the PRSs on at least two frequency points. For example, if the second configuration information indicates that PRS resource 1 and PRS resource 2 have an association relationship, the second configuration information is equivalent to indicating that the PRS corresponding to PRS resource 1 and the PRS corresponding to PRS resource 2 have an association relationship.

[0010] Optionally, the second configuration information comprises configuration information of a plurality of frequency points, the configuration information of a frequency point comprising an index of the frequency point and configuration information of a PRS resource set in the frequency point, the configuration information of the PRS resource set comprising an index of the PRS resource set and configuration information of a PRS resource in the PRS resource set, the configuration information of the PRS resource comprising an index of the PRS resource; the second configuration information indicates an association relationship between PRS resources on at least two frequency points, which can have the following three specific implementation manners:

[0011] ① The configuration information of the third PRS resource set further comprises an index of at least one fourth PRS resource set, to indicate that the PRS resources included in the third PRS resource set and the PRS resources included in the at least one fourth PRS resource set have an association relationship, the third PRS resource set and the at least one fourth PRS resource set being resource sets on different frequency points configured by the second configuration information. Mode ① can indicate PRS resources having an association relationship based on resource set granularity, which is beneficial to saving signaling overhead.

[0012] ② The index of the third PRS resource set and the index of the at least one fourth PRS resource set are configured to be the same, to indicate that the PRS resources included in the third PRS resource set and the PRS resources included in the at least one fourth PRS resource set have an association relationship, the third PRS resource set and the at least one fourth PRS resource set being resource sets on different frequency points configured by the second configuration information. Mode ② can indicate PRS resources having an association relationship based on resource set granularity, and mode ② does not need to increase additional information in the second configuration information to indicate PRS resources having an association relationship, which is beneficial to saving signaling overhead.

[0013] ③ The configuration information of the third PRS resource further comprises at least one second index information, the second index information comprising an index of a fourth PRS resource set and an index of a fourth PRS resource in the fourth PRS resource set, to indicate that the third PRS resource and the at least one fourth PRS resource have an association relationship, the third PRS resource and the at least one fourth PRS resource being resources on different frequency points configured by the second configuration information. Mode ③ can indicate PRS resources having an association relationship based on PRS resource granularity, and more finely indicates an association relationship between PRS resources on different frequency points.

[0014] Optionally, in the above-mentioned mode 1 and mode 2, the PRS resources in the third PRS resource set and the PRS resources in the at least one fourth PRS resource set have an association relationship, and specifically, the third PRS resource in the third PRS resource set and the fourth PRS resource in the at least one fourth PRS resource set have an association relationship; the third PRS resource and the fourth PRS resource satisfy one or more of the following conditions: the third PRS resource and the fourth PRS resource have the same PRS resource index; the third PRS resource and the fourth PRS resource occupy the same symbol; or the third PRS resource and the fourth PRS resource have a quasi co-location (QCL) relationship.

[0015] In another possible implementation, the manner in which the second configuration information indicates the association relationship between the PRSs on the at least two frequency points is specifically as follows: the second configuration information indicates an association relationship between PRS resource sets on the at least two frequency points. That is, the second configuration information can indicate the association relationship between the PRSs on the at least two frequency points by indicating the association relationship between the PRS resource sets on the at least two frequency points, which can accurately indicate the association relationship between the PRSs on the at least two frequency points, and indicating the association relationship between the PRSs on the at least two frequency points in the PRS resource set granularity is beneficial to saving signaling overhead. For example, if the second configuration information indicates that a PRS resource set 1 and a PRS resource set 2 have an association relationship, the second configuration information is equivalent to indicating that a PRS in the PRS resource set 1 and a PRS in the PRS resource set 2 have an association relationship.

[0016] Optionally, the second configuration information includes configuration information of a plurality of frequency points, the configuration information of a frequency point includes an index of the frequency point and configuration information of a PRS resource set in the frequency point, the configuration information of the PRS resource set includes an index of the PRS resource set and configuration information of a PRS resource in the PRS resource set, and the configuration information of the PRS resource includes an index of the PRS resource; the first configuration information indicating the association relationship between the PRS resource sets on the at least two frequency points can have the following two specific implementation modes:

[0017] 1) the configuration information of the third PRS resource set further includes an index of at least one fourth PRS resource set, to indicate that the third PRS resource set and the at least one fourth PRS resource set have an association relationship, and the third PRS resource set and the at least one fourth PRS resource set are resource sets on different frequency points configured by the second configuration information. Mode 1 can accurately indicate the association relationship between the PRS resource sets.

[0018] ② the index of the third PRS resource set and the index of the at least one fourth PRS resource set are configured to be the same, to indicate that the third PRS resource set and the at least one fourth PRS resource set have an association relationship, and the third PRS resource set and the at least one fourth PRS resource set are resource sets on different frequency points configured by the second configuration information. The manner ② can indicate the association relationship between the PRS resource sets without adding additional information in the second configuration information, which is beneficial to saving signaling overhead.

[0019] Optionally, in the manner ① and the manner ②, the third PRS in the third PRS resource set and the fourth PRS in the at least one fourth PRS resource set have an association relationship; the third PRS and the fourth PRS satisfy one or more of the following conditions: the resource index of the third PRS is the same as the resource index of the fourth PRS; the third PRS and the fourth PRS occupy the same symbol; or the third PRS and the fourth PRS have a quasi co-location (QCL) relationship.

[0020] In a possible implementation, the terminal device sends capability information to the positioning management device, and the capability information is used to indicate one or more of the following information: a maximum aggregation bandwidth supported by the terminal device, a maximum number of aggregation frequency points supported by the terminal device, whether the terminal device supports joint measurement on PRSs on multiple frequency points or a capability of the terminal device for joint processing of PRSs on multiple frequency points; wherein the aggregation bandwidth is a bandwidth composed of PRSs having an association relationship. By reporting the capability information of the terminal device to the positioning management device, the positioning management device can accurately determine which PRS configurations should be notified to the terminal device based on the capability information of the terminal device. Alternatively, the positioning management device can perform other operations based on the capability information of the terminal device.

[0021] In a possible implementation, the reporting granularity of the capability information is reporting per frequency band, or reporting per frequency band group, or reporting per frequency band in a frequency band group, or reporting per frequency band subset in a frequency band group. Based on the possible implementation, the capability information of the terminal device can be reported with a finer granularity.

[0022] In a possible implementation, the specific implementation of the terminal device measuring the PRSs having an association relationship is that the terminal device measures the PRSs having an association relationship when the PRSs having an association relationship satisfy a first condition, and the first condition includes any one or more of the following conditions: the subcarrier spacings of the PRSs having an association relationship are the same; the cyclic prefix types of the PRSs having an association relationship are the same; the PRSs having an association relationship occupy the same symbol or the PRSs having an association relationship time-domain overlap or the PRSs having an association relationship time-domain partially overlap; the total bandwidth of the PRSs having an association relationship is less than the maximum aggregation bandwidth supported by the terminal device; or the number of frequency points of the PRSs having an association relationship is less than the maximum number of associated frequency points supported by the terminal device.

[0023] When the subcarrier spacing of the PRSs with the association relationship is the same, or the cyclic prefix type is the same, or the same symbol is occupied, or the time domain part is partially overlapped, the terminal device can more conveniently perform joint measurement on the PRSs with the association relationship. When the total bandwidth of the PRSs with the association relationship is less than the maximum aggregation bandwidth supported by the terminal device, or the number of frequency points occupied by the PRSs with the association relationship is less than the maximum number of associated frequency points supported by the terminal device, the terminal device performs joint measurement on the PRSs with the association relationship, so as to ensure that the terminal device successfully performs joint measurement on the PRSs with the association relationship.

[0024] In a possible implementation, if the total bandwidth of the PRSs with the association relationship is greater than the maximum aggregation bandwidth supported by the terminal device, or the number of frequency points occupied by the PRSs with the association relationship is greater than the maximum number of associated frequency points supported by the terminal device, the terminal device determines, from the PRSs with the association relationship, a PRS combination with the maximum bandwidth supported by the terminal device; and the terminal device performs measurement on a signal on the PRS combination. Based on the possible implementation, even if the total bandwidth of the PRSs with the association relationship is greater than the maximum aggregation bandwidth supported by the terminal device, or the number of frequency points occupied by the PRSs with the association relationship is greater than the maximum number of associated frequency points supported by the terminal device, the terminal device can perform joint measurement on the PRSs on multiple frequency points.

[0025] In a possible implementation, the terminal device sends a measurement result to the positioning management device, where the measurement result is obtained by the terminal device performing measurement on the PRSs with the association relationship, and the measurement result includes an index of a resource set in which the PRSs with the association relationship are located and / or a resource index of the PRSs with the association relationship. Based on the possible implementation, the positioning management device can accurately determine which PRSs are used to obtain the measurement result.

[0026] In a possible implementation, the PRSs with the association relationship have the same antenna port or the PRSs with the association relationship have a phase difference can be replaced by: the PRSs with the association relationship have a QCL relationship. By making the PRSs with the association relationship have a QCL relationship, the terminal device can perform measurement on the multiple PRSs with the association relationship to obtain multiple measurement results corresponding to the multiple PRSs, and then combine the multiple measurement results to obtain frequency diversity gain and improve positioning accuracy.

[0027] In a second aspect, the present application provides a method for associating PRSs, which comprises:

[0028] The positioning management device receives first configuration information sent by the network device, the first configuration information indicating an association relationship between PRSs on at least two frequency points; the positioning management device sends second configuration information to the terminal device, the second configuration information being used to indicate the association relationship between the PRSs on the at least two frequency points; wherein the PRSs having the association relationship share an antenna port, or the PRSs having the association relationship have a phase difference.

[0029] In a possible implementation, the first configuration information and the second configuration information further indicate that the PRSs having the association relationship share an antenna port, or the PRSs having the association relationship have a phase difference.

[0030] In a possible implementation, in a process in which the terminal device measures the PRSs having the association relationship, the phase difference between the PRSs having the association relationship is a fixed value.

[0031] In a possible implementation, the first configuration information indicates the association relationship between the PRSs on the at least two frequency points in the following manner: the first configuration information indicates an association relationship between PRS resources on the at least two frequency points. That is, the first configuration information can indicate the association relationship between the PRSs on the at least two frequency points by indicating the association relationship between the PRS resources on the at least two frequency points, which can accurately and finely indicate the association relationship between the PRSs on the at least two frequency points. For example, if the first configuration information indicates that PRS resource 1 and PRS resource 2 have an association relationship, the first configuration information is equivalent to indicating that a PRS corresponding to PRS resource 1 and a PRS corresponding to PRS resource 2 have an association relationship.

[0032] Optionally, the first configuration information includes configuration information of multiple frequency points, the configuration information of a frequency point including an index of the frequency point and configuration information of a PRS resource set in the frequency point, the configuration information of the PRS resource set including an index of the PRS resource set and configuration information of a PRS resource in the PRS resource set, the configuration information of the PRS resource including an index of the PRS resource; the first configuration information indicating the association relationship between PRS resources on at least two frequency points can have the following three specific implementation manners:

[0033] ①The configuration information of a first PRS resource set further includes an index of at least one second PRS resource set, to indicate that PRS resources included in the first PRS resource set and PRS resources included in the at least one second PRS resource set have an association relationship, the first PRS resource set and the at least one second PRS resource set being resource sets on different frequency points configured by the first configuration information. The manner ① can indicate the PRS resources having the association relationship based on resource set granularity, which is beneficial to saving signaling overhead.

[0034] In an implementation, the first PRS resource set and the at least one second PRS resource set are resource sets on different frequency points configured by the first configuration information. The manner 2 can indicate the PRS resources having the association relationship based on a resource set granularity, and the manner 2 does not need to increase additional information in the first configuration information to indicate the PRS resources having the association relationship, which is beneficial to save signaling overhead.

[0035] In another implementation, the first configuration information indicates the association relationship between the PRSs on the at least two frequency points in a manner that the first configuration information indicates the association relationship between the PRS resource sets on the at least two frequency points. That is, the first configuration information can indicate the association relationship between the PRSs on the at least two frequency points by indicating the association relationship between the PRS resource sets on the at least two frequency points, which can accurately indicate the association relationship between the PRSs on the at least two frequency points, and indicating the association relationship between the PRSs on the at least two frequency points based on a PRS resource set granularity is beneficial to save signaling overhead. For example, if the first configuration information indicates that a PRS resource set 1 and a PRS resource set 2 have the association relationship, the first configuration information is equivalent to indicating that the PRSs in the PRS resource set 1 and the PRSs in the PRS resource set 2 have the association relationship.

[0036] In an implementation, the first PRS resource set and the at least one second PRS resource set are resource sets on different frequency points configured by the first configuration information. The manner 2 can indicate the PRS resources having the association relationship based on a resource set granularity, and the manner 2 does not need to increase additional information in the first configuration information to indicate the PRS resources having the association relationship, which is beneficial to save signaling overhead.

[0037] In another implementation, the first configuration information indicates the association relationship between the PRSs on the at least two frequency points in a manner that the first configuration information indicates the association relationship between the PRS resource sets on the at least two frequency points. That is, the first configuration information can indicate the association relationship between the PRSs on the at least two frequency points by indicating the association relationship between the PRS resource sets on the at least two frequency points, which can accurately indicate the association relationship between the PRSs on the at least two frequency points, and indicating the association relationship between the PRSs on the at least two frequency points based on a PRS resource set granularity is beneficial to save signaling overhead. For example, if the first configuration information indicates that a PRS resource set 1 and a PRS resource set 2 have the association relationship, the first configuration information is equivalent to indicating that the PRSs in the PRS resource set 1 and the PRSs in the PRS resource set 2 have the association relationship.

[0038] Optionally, the first configuration information comprises configuration information of a plurality of frequency points, the configuration information of a frequency point comprising an index of the frequency point and configuration information of a PRS resource set in the frequency point, the configuration information of the PRS resource set comprising an index of the PRS resource set and configuration information of a PRS resource in the PRS resource set, the configuration information of the PRS resource comprising an index of the PRS resource; the first configuration information indicates an association relationship between PRS resource sets on at least two frequency points, which can have the following two specific implementation manners:

[0039] ① The configuration information of the first PRS resource set further comprises an index of at least one second PRS resource set, to indicate that the first PRS resource set and the at least one second PRS resource set have an association relationship, the first PRS resource set and the at least one second PRS resource set being resource sets on different frequency points configured by the first configuration information. Mode ① can accurately indicate the association relationship between PRS resource sets.

[0040] ② The index of the first PRS resource set is configured to be the same as the index of at least one second PRS resource set, to indicate that the first PRS resource set and the at least one second PRS resource set have an association relationship, the first PRS resource set and the at least one second PRS resource set being resource sets on different frequency points configured by the first configuration information. Mode ② can indicate the association relationship between PRS resource sets without adding extra information in the first configuration information, which is beneficial to saving signaling overhead.

[0041] Optionally, a first PRS in the first PRS resource set has an association relationship with a second PRS in the at least one second PRS resource set; the first PRS and the second PRS satisfy one or more of the following conditions: the resource index of the first PRS is the same as the resource index of the second PRS; the first PRS and the second PRS occupy the same symbol; or the first PRS and the second PRS have a quasi co-location (QCL) relationship.

[0042] In a possible implementation, the second configuration information indicates an association relationship between PRSs on at least two frequency points in the following manner: the second configuration information indicates an association relationship between PRS resources on at least two frequency points.

[0043] Optionally, the second configuration information comprises configuration information of a plurality of frequency points, the configuration information of a frequency point comprising an index of the frequency point and configuration information of a PRS resource set in the frequency point, the configuration information of the PRS resource set comprising an index of the PRS resource set and configuration information of a PRS resource in the PRS resource set, the configuration information of the PRS resource comprising an index of the PRS resource; the second configuration information indicates an association relationship between PRS resources on at least two frequency points, which can have the following three specific implementation manners:

[0044] The configuration information of the third PRS resource set further includes an index of at least one fourth PRS resource set, to indicate that the PRS resources included in the third PRS resource set and the PRS resources included in the at least one fourth PRS resource set have an association relationship, and the third PRS resource set and the at least one fourth PRS resource set are resource sets on different frequency points configured by the second configuration information.

[0045] The index of the third PRS resource set and the index of the at least one fourth PRS resource set are configured to be the same, to indicate that the PRS resources included in the third PRS resource set and the PRS resources included in the at least one fourth PRS resource set have an association relationship, and the third PRS resource set and the at least one fourth PRS resource set are resource sets on different frequency points configured by the second configuration information.

[0046] The configuration information of the third PRS resource further includes at least one second index information, and the second index information includes an index of a fourth PRS resource set and an index of a fourth PRS resource in the fourth PRS resource set, to indicate that the third PRS resource and the at least one fourth PRS resource have an association relationship, and the third PRS resource and the at least one fourth PRS resource are resources on different frequency points configured by the second configuration information.

[0047] Optionally, the third PRS resource in the third PRS resource set and the fourth PRS resource in the at least one fourth PRS resource set have an association relationship; and the third PRS resource and the fourth PRS resource satisfy one or more of the following conditions: the third PRS resource and the fourth PRS resource have the same PRS resource index; the third PRS resource and the fourth PRS resource occupy the same symbol; or the third PRS resource and the fourth PRS resource have a quasi co-location (QCL) relationship.

[0048] In another possible implementation, the manner in which the second configuration information indicates the association relationship between the PRSs on the at least two frequency points is specifically as follows: the second configuration information indicates the association relationship between the PRS resource sets on the at least two frequency points. That is, the second configuration information can indicate the association relationship between the PRSs on the at least two frequency points by indicating the association relationship between the PRS resource sets on the at least two frequency points.

[0049] Optionally, the second configuration information includes configuration information of multiple frequency points, the configuration information of a frequency point including an index of the frequency point and configuration information of a PRS resource set in the frequency point, the configuration information of the PRS resource set including an index of the PRS resource set and configuration information of a PRS resource in the PRS resource set, the configuration information of the PRS resource including an index of the PRS resource; the first configuration information indicates an association relationship between PRS resource sets on at least two frequency points, which can have the following two specific implementation manners:

[0050] ①The configuration information of the third PRS resource set further includes an index of at least one fourth PRS resource set, to indicate that the third PRS resource set and the at least one fourth PRS resource set have an association relationship, and the third PRS resource set and the at least one fourth PRS resource set are resource sets on different frequency points configured by the second configuration information.

[0051] ②The index of the third PRS resource set and the index of the at least one fourth PRS resource set are configured to be the same, to indicate that the third PRS resource set and the at least one fourth PRS resource set have an association relationship, and the third PRS resource set and the at least one fourth PRS resource set are resource sets on different frequency points configured by the second configuration information.

[0052] Optionally, a third PRS in the third PRS resource set has an association relationship with a fourth PRS in the at least one fourth PRS resource set; the third PRS and the fourth PRS satisfy one or more of the following conditions: the resource index of the third PRS is the same as the resource index of the fourth PRS; the third PRS and the fourth PRS occupy the same symbol; or the third PRS and the fourth PRS have a quasi co-location (QCL) relationship.

[0053] In a possible implementation, the positioning management device receives capability information reported by the terminal device, the capability information indicating one or more of the following information: a maximum aggregation bandwidth supported by the terminal device, a maximum number of aggregation frequency points supported by the terminal device, whether the terminal device supports joint measurement on PRSs on multiple frequency points or a capability of the terminal device for joint processing on PRSs on multiple frequency points; wherein the aggregation bandwidth is a bandwidth composed of PRSs having an association relationship.

[0054] In a possible implementation, the reporting granularity of the capability information is reporting per frequency band, or reporting per frequency band group, or reporting per frequency band in a frequency band group, or reporting per frequency band subset in a frequency band group.

[0055] In a possible implementation, the positioning management device receives a measurement result sent by the terminal device; wherein the measurement result is obtained by the terminal device measuring PRSs having an association relationship, and the measurement result includes an index of a resource set in which the PRSs having an association relationship are located and / or a resource index of the PRSs having an association relationship.

[0056] In a possible implementation, the PRSs having the association relationship share the same antenna port or the PRSs having the association relationship have a phase difference can be replaced by: the PRSs having the association relationship have a QCL relationship.

[0057] The beneficial effects of the second aspect can refer to the beneficial effects of the first aspect, and will not be repeated here.

[0058] In a third aspect, the present application provides a PRS association method, comprising:

[0059] The network device sends first configuration information to the positioning management device, the first configuration information being used to indicate an association relationship between PRSs on at least two frequency points; and the network device sends the PRSs having the association relationship; wherein the PRSs having the association relationship share the same antenna port or the PRSs having the association relationship have a phase difference.

[0060] In a possible implementation, the first configuration information further indicates that the PRSs having the association relationship share the same antenna port or the PRSs having the association relationship have a phase difference.

[0061] In a possible implementation, during the process in which the terminal device measures the PRSs having the association relationship, the phase difference between the PRSs having the association relationship is a fixed value.

[0062] In a possible implementation, the first configuration information indicates the association relationship between the PRSs on at least two frequency points in the following manner: the first configuration information indicates an association relationship between PRS resources on at least two frequency points.

[0063] Optionally, the first configuration information includes configuration information of multiple frequency points, the configuration information of a frequency point including an index of the frequency point and configuration information of a PRS resource set in the frequency point, the configuration information of the PRS resource set including an index of the PRS resource set and configuration information of a PRS resource in the PRS resource set, the configuration information of the PRS resource including an index of the PRS resource; and the first configuration information indicating the association relationship between the PRS resources on at least two frequency points can have the following three specific implementation manners:

[0064] ①The configuration information of a first PRS resource set further includes an index of at least one second PRS resource set, to indicate that the PRS resources included in the first PRS resource set and the PRS resources included in the at least one second PRS resource set have an association relationship, the first PRS resource set and the at least one second PRS resource set being resource sets on different frequency points configured by the first configuration information.

[0065] ② the index of the first PRS resource set and the index of the at least one second PRS resource set are configured to be the same, to indicate that the PRS resources included in the first PRS resource set and the PRS resources included in the at least one second PRS resource set have an association relationship, and the first PRS resource set and the at least one second PRS resource set are resource sets on different frequency points configured by the first configuration information.

[0066] ③ the configuration information of the first PRS resource further includes at least one first index information, the first index information includes the index of the second PRS resource set and the index of the second PRS resource in the second PRS resource set, to indicate that the first PRS resource and the at least one second PRS resource have an association relationship, and the first PRS resource and the at least one second PRS resource are resources on different frequency points configured by the first configuration information.

[0067] Optionally, the PRS resources included in the first PRS resource set and the PRS resources included in the at least one second PRS resource set have an association relationship, specifically that the first PRS resource in the first PRS resource set and the second PRS resource in the at least one second PRS resource set have an association relationship, and the first PRS resource and the second PRS resource satisfy one or more of the following conditions: the first PRS resource and the second PRS resource have the same PRS resource index; the first PRS resource and the second PRS resource occupy the same symbol; or the first PRS resource and the second PRS resource have a quasi co-location (QCL) relationship.

[0068] In another possible implementation, the manner in which the first configuration information indicates the association relationship between the PRSs on the at least two frequency points is specifically that the first configuration information indicates the association relationship between the PRS resource sets on the at least two frequency points. That is, the first configuration information can indicate the association relationship between the PRSs on the at least two frequency points by indicating the association relationship between the PRS resource sets on the at least two frequency points.

[0069] Optionally, the first configuration information includes configuration information of multiple frequency points, the configuration information of a frequency point includes the index of the frequency point and the configuration information of the PRS resource set in the frequency point, the configuration information of the PRS resource set includes the index of the PRS resource set and the configuration information of the PRS resource in the PRS resource set, and the configuration information of the PRS resource includes the index of the PRS resource; the first configuration information indicating the association relationship between the PRS resource sets on the at least two frequency points can have the following two specific implementation manners:

[0070] ① the configuration information of the first PRS resource set further includes the index of the at least one second PRS resource set, to indicate the first PRS resource set and the at least one second PRS resource set, and the first PRS resource set and the at least one second PRS resource set are resource sets on different frequency points configured by the first configuration information.

[0071] The index of the first PRS resource set and the index of the at least one second PRS resource set are configured to be the same to indicate that the first PRS resource set and the at least one second PRS resource set have an association relationship, and the first PRS resource set and the at least one second PRS resource set are resource sets on different frequency points configured by the first configuration information.

[0072] Optionally, a first PRS in the first PRS resource set and a second PRS in the at least one second PRS resource set have an association relationship; the first PRS and the second PRS satisfy one or more of the following conditions: the resource index of the first PRS is the same as the resource index of the second PRS; the first PRS and the second PRS occupy the same symbol; or, the first PRS and the second PRS have a quasi co-location (QCL) relationship.

[0073] In a possible implementation, the PRS with the same antenna port or the PRS with the phase difference having the association relationship can be replaced by: the PRS with the QCL relationship having the association relationship.

[0074] The beneficial effects of the third aspect can be referred to the beneficial effects of the first aspect and the second aspect, and will not be repeated here.

[0075] In the fourth aspect, a communication apparatus is provided, which can be a terminal device, a device in a terminal device, or a device capable of being used in matching with a terminal device. The communication apparatus can also be a chip system. The communication apparatus can execute the method in the first aspect. The functions of the communication apparatus can be realized by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions. The unit can be software and / or hardware. The operations and beneficial effects of the communication apparatus can be referred to the method and beneficial effects of the first aspect, and the repeated parts will not be repeated here.

[0076] In the fifth aspect, a communication apparatus is provided, which can be a positioning management device, a device in a positioning management device, or a device capable of being used in matching with a positioning management device. The communication apparatus can also be a chip system. The communication apparatus can execute the method in the second aspect. The functions of the communication apparatus can be realized by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions. The unit can be software and / or hardware. The operations and beneficial effects of the communication apparatus can be referred to the method and beneficial effects of the second aspect, and the repeated parts will not be repeated here.

[0077] In a sixth aspect, a communication apparatus is provided, which can be a network device, a device in a network device, or a device capable of being used in matching with a network device. The communication apparatus can also be a chip system. The communication apparatus can perform the method in the third aspect. The functions of the communication apparatus can be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions. The units can be software and / or hardware. The operations and beneficial effects of the communication apparatus can be referred to the method in the third aspect and the beneficial effects, and the repeated parts will not be described herein.

[0078] In a seventh aspect, a communication apparatus is provided, which includes a processor. When the processor invokes a computer program in a memory, the method performed by the terminal device in the method in the first aspect is performed.

[0079] In an eighth aspect, a communication apparatus is provided, which includes a processor. When the processor invokes a computer program in a memory, the method performed by the positioning management device in the method in the second aspect is performed.

[0080] In a ninth aspect, a communication apparatus is provided, which includes a processor. When the processor invokes a computer program in a memory, the method performed by the network device in the method in the third aspect is performed.

[0081] In a tenth aspect, a communication apparatus is provided, which includes a processor and a memory. The memory is configured to store computer execution instructions. The processor is configured to execute the computer execution instructions stored in the memory, so that the communication apparatus performs the method performed by the terminal device in the method in the first aspect.

[0082] In an eleventh aspect, a communication apparatus is provided, which includes a processor and a memory. The memory is configured to store computer execution instructions. The processor is configured to execute the computer execution instructions stored in the memory, so that the communication apparatus performs the method performed by the positioning management device in the method in the second aspect.

[0083] In a twelfth aspect, a communication apparatus is provided, which includes a processor and a memory. The memory is configured to store computer execution instructions. The processor is configured to execute the computer execution instructions stored in the memory, so that the communication apparatus performs the method performed by the network device in the method in the third aspect.

[0084] In a thirteenth aspect, the present application provides a communication apparatus, comprising a processor, a memory and a transceiver, wherein the transceiver is configured to receive or send signals; the memory is configured to store a computer program; and the processor is configured to invoke the computer program stored in the memory to execute the method performed by the terminal device in the method of the first aspect.

[0085] In a fourteenth aspect, the present application provides a communication apparatus, comprising a processor, a memory and a transceiver, wherein the transceiver is configured to receive or send signals; the memory is configured to store a computer program; and the processor is configured to invoke the computer program stored in the memory to execute the method performed by the positioning management device in the method of the second aspect.

[0086] In a fifteenth aspect, the present application provides a communication apparatus, comprising a processor, a memory and a transceiver, wherein the transceiver is configured to receive or send signals; the memory is configured to store a computer program; and the processor is configured to invoke the computer program stored in the memory to execute the method performed by the network device in the method of the third aspect.

[0087] In a sixteenth aspect, the present application provides a communication apparatus, comprising a processor and an interface circuit, wherein the interface circuit is configured to receive computer execution instructions and transmit the computer execution instructions to the processor; and the processor is configured to execute the computer execution instructions to execute the method performed by the terminal device in the method of the first aspect.

[0088] In a seventeenth aspect, the present application provides a communication apparatus, comprising a processor and an interface circuit, wherein the interface circuit is configured to receive computer execution instructions and transmit the computer execution instructions to the processor; and the processor is configured to execute the computer execution instructions to execute the method performed by the positioning management device in the method of the second aspect.

[0089] In an eighteenth aspect, the present application provides a communication apparatus, comprising a processor and an interface circuit, wherein the interface circuit is configured to receive computer execution instructions and transmit the computer execution instructions to the processor; and the processor is configured to execute the computer execution instructions to execute the method performed by the network device in the method of the third aspect.

[0090] In a nineteenth aspect, the present application provides a computer readable storage medium, configured to store computer execution instructions, when the computer execution instructions are executed, the method performed by the terminal device in the method of the first aspect is implemented.

[0091] In a twentieth aspect, a computer-readable storage medium is provided for storing computer-executable instructions that, when executed, cause the method performed by the positioning management device in the method of the second aspect to be implemented.

[0092] In a twenty-first aspect, a computer-readable storage medium is provided for storing computer-executable instructions that, when executed, cause the method performed by the network device in the method of the third aspect to be implemented.

[0093] In a twenty-second aspect, a computer program product including a computer program is provided that, when executed, causes the method performed by the terminal device in the method of the first aspect to be implemented.

[0094] In a twenty-third aspect, a computer program product including a computer program is provided that, when executed, causes the method performed by the positioning management device in the method of the second aspect to be implemented.

[0095] In a twenty-fourth aspect, a computer program product including a computer program is provided that, when executed, causes the method performed by the network device in the method of the third aspect to be implemented.

[0096] In a twenty-fifth aspect, a communication system is provided that includes the communication apparatus of the fourth aspect, the seventh aspect, the tenth aspect, the thirteenth aspect, or the sixteenth aspect, the communication apparatus of the fifth aspect, the eighth aspect, the eleventh aspect, the fourteenth aspect, or the seventeenth aspect, and the communication apparatus of the sixth aspect, the ninth aspect, the twelfth aspect, the fifteenth aspect, or the eighteenth aspect. BRIEF DESCRIPTION OF DRAWINGS

[0097] Figure 1 FIG. 1 is a structural schematic diagram of a system architecture provided by an embodiment of the present application;

[0098] Figure 2 FIG. 2 is a structural schematic diagram of another system architecture provided by an embodiment of the present application;

[0099] Figure 3 FIG. 3 is a schematic diagram of a PRS configuration level provided by an embodiment of the present application;

[0100] Figure 4 FIG. 4 is a flow schematic diagram of a PRS association method provided by an embodiment of the present application;

[0101] Figure 5 FIG. 5 is a schematic diagram of first configuration information provided by an embodiment of the present application;

[0102] Figure 6 is another schematic diagram of first configuration information provided by an embodiment of the present application;

[0103] Figure 7 is another schematic diagram of first configuration information provided by an embodiment of the present application;

[0104] Figure 8 is another schematic diagram of first configuration information provided by an embodiment of the present application;

[0105] Figure 9 is another schematic diagram of a method for associating PRSs provided by an embodiment of the present application;

[0106] Figure 10 is a schematic diagram of a structure of a communication apparatus provided by an embodiment of the present application;

[0107] Figure 11a is a schematic diagram of a structure of another communication apparatus provided by an embodiment of the present application;

[0108] Figure 11b is a schematic diagram of a structure of yet another communication apparatus provided by an embodiment of the present application. DETAILED DESCRIPTION

[0109] The specific embodiments of the present application will be further described in conjunction with the drawings below.

[0110] The terms “first” and “second” and the like in the description, claims and drawings of the present application are used for distinguishing between similar objects and not necessarily for describing a specific sequential or chronological order. The terms “comprises”, “comprising”, “includes”, “including” and the like are used in the sense of “including but not limited to”. The term “coupled” as used herein is used to indicate that two or more elements, hybrid means, or the like co-operate, interact or as otherwise be coupled, whether directly or indirectly, electrically or otherwise, to one another, and is used in the sense of “connected”, “associated with”, or “in communication with”, but not limited to, the terms “coupled” and “connected” are not intended to mean that the elements, hybrid means, or the like are electrically or otherwise directly connected to one another.

[0111] Reference herein to “an embodiment” means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase “in an embodiment” in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily all directed to the same embodiment, or to a single alternative embodiment. It is explicitly contemplated that embodiments described herein can be combined with each other.

[0112] In the present application, "at least one" refers to one or more, "multiple" refers to two or more, "at least two" refers to two or three and more, and "and / or" is used to describe the corresponding relationship of the corresponding object, which means that there can be three relationships, for example, "A and / or B" can represent three cases: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally represents that the corresponding objects before and after are in an "or" relationship. "At least one of" or the like refers to any combination of these items, including any combination of single or multiple items. For example, at least one of a, b or c can represent a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, and c can be single or multiple.

[0113] In order to better understand the scheme provided in the present application, the system architecture of the present application will be introduced first as follows:

[0114] The method provided by the embodiments of the present application can be applied to various communication systems, for example, it can be an internet of things (IoT) system, a narrow band internet of things (NB-IoT) system, a long term evolution (LTE) system, or a 5th-generation (5G) communication system, or a new radio (NR) system, or a new communication system to be appeared in future communication development.

[0115] Please refer to Figure 1 , Figure 1 is a schematic diagram of a system architecture provided by the embodiments of the present application. As Figure 1 indicated, the system architecture includes a terminal device, a network device and a positioning management device.

[0116] The terminal device involved in the embodiments of the present application is an entity on the user side for receiving or transmitting signals. The terminal device can be a device that provides voice and / or data connectivity to the user, for example, a handheld device with wireless connection function, a vehicle-mounted device, etc. The terminal device can also be other processing devices connected to a wireless modem. The terminal device can communicate with a radio access network (RAN). The terminal device can also be called a wireless terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a mobile station, a remote station, an access point, a remote terminal, an access terminal, a user terminal, a user agent, a user device, or a user equipment (UE), etc. The terminal device can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal, for example, a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device, which exchanges voice and / or data with a radio access network. For example, the terminal device may also be a personal communication service (PCS) phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), etc. Common terminal devices include, for example, cars, drones, robotic arms, mobile phones, tablet computers, laptop computers, PDAs, mobile internet devices (MIDs), and wearable devices such as smart watches, smart bracelets, and pedometers, but the embodiments of the present application are not limited thereto.

[0117] The network device in the embodiment of the present application is an entity on the network side for transmitting or receiving signals, which can be used to convert received air frames into and out of Internet Protocol (IP) packets, and serve as a router between the terminal device and the rest of the access network, wherein the rest of the access network may include an IP network, etc. The network device can also coordinate the attribute management of the air interface. For example, the network device can be an evolved base station (eNB or e-NodeB) in LTE, a new radio controller (NR controller), an ng-eNB, a gNode B (gNB) in a 5G system, a centralized unit, a new wireless base station, a radio remote module, a micro base station, a relay, a distributed unit, or any other wireless access device, but the embodiments of the present application are not limited thereto.

[0118] In the embodiment of the present application, a network device may include one or more cells, and each cell may include one or more transmission reception points (TRPs) or transmission points (TPs).

[0119] A location management device is a device on the network side used to determine the location information of a terminal device. The location management device can be a location management function (LMF) entity, an evolved serving mobile location center (E-SMLC), or other device that can be used to determine the location information of a terminal device.

[0120] In one possible implementation, Figure 1 Based on the system architecture shown, other devices may also be included. For example, Figure 2 This is a diagram of another system architecture. Figure 2 For example, the terminal device is UE, the network devices include ng-eNB and gNB, and the positioning management device is LMF. Figure 2As shown, the system architecture can further include an access management function (AMF) entity. The AMF entity is a control plane network function provided by an operator network, responsible for access control and mobility management of terminal devices accessing the operator network, for example, including functions such as mobile state management, allocation of user temporary identity, authentication and authorization of users, etc. Optionally, the system architecture can further include a SUPL Location Platform (SLP) and an Enhanced-Serving Mobile Location Center (E-SMLC) entity. Embodiments of the present application only describe network devices that are more relevant to the method of determining positioning information proposed in the present application, and other related network devices are not described here.

[0121] Rel-16 positioning standardizes downlink positioning reference signals (DL PRS) to support the following positioning techniques:

[0122] 1. Downlink time difference of arrival (DL-TDOA) positioning technique. In this positioning technique, the terminal device measures the downlink reference signal time difference (DL RSTD) of the PRS sent by each cell, and reports the measurement result to the LMF. The LMF performs positioning of the terminal device based on the measurement result.

[0123] 2. Downlink angle of departure (DL-AoD) positioning technique. In this positioning technique, the terminal device measures the reference signal received power (RSRP) of the PRS sent by each cell, and reports the measurement result to the LMF. The LMF performs positioning of the terminal device based on the measurement result.

[0124] 3. Multi-cell round trip time (Multi-RTT) positioning technique. In this positioning technique, the terminal device measures the user equipment receive-transmit time difference (UE-RxTxTimeDiff, UE RxmeDiffime. received) of the PRS sent by each cell, and reports the measurement result to the LMF; each cell measures the gNB receive-transmit time difference (gNB-RxTxTimeDiff, gNB Rx–Tx time difference) of the SRS sent by the terminal device, and reports the measurement result to the LMF. The LMF performs positioning of the terminal device based on the measurement result.

[0125] In the above positioning technology, the PRS can be sent by the TRP or TP in each cell, and the following description takes the TRP sending the PRS as an example. The following concepts related to PRS configuration are introduced as follows:

[0126] 1. Positioning frequency point. As shown in Figure 3 , each positioning frequency point is a set of multiple PRS resource sets on multiple TRPs, belonging to one or more TRPs, and the PRS resources on one positioning frequency point have the same A point (common resource block start position), bandwidth, subcarrier spacing, and comb number.

[0127] 2. TRP. One TRP corresponds to one independent position sending point. As shown in Figure 3 , one TRP can include one or more PRS resource sets. There is one or more TRP under one positioning frequency point, and one TRP can also have one or more positioning frequency points. As shown in Figure 3 , TRP #0 has positioning frequency point 1 and positioning frequency point 2.

[0128] 3. PRS resource set. One PRS resource set includes one or more PRS resources, and the PRS resources in one PRS resource set have the same period, symbol number, etc. Different TRPs have different PRS resource sets.

[0129] 4. PRS resource. The PRS resource is the smallest granularity of the PRS configuration, and one PRS resource corresponds to one PRS sending beam.

[0130] At present, in the low-frequency communication system, the positioning accuracy of the positioning technology is not high, and it is difficult to achieve high precision of 0.2 meters. The main reason is that the maximum bandwidth of a single PRS in the low-frequency NR communication system is 100MHz, and the positioning method based on timing ranging is directly related to the bandwidth. Generally speaking, the larger the PRS bandwidth, the higher the ranging accuracy. Therefore, how to enhance the existing PRS configuration structure to realize the configuration of a large bandwidth PRS, so as to improve the positioning accuracy is a problem to be solved at present.

[0131] In order to realize the configuration of a large bandwidth PRS, the embodiment of the present application provides a PRS association method and a communication device, which are further described in detail as follows:

[0132] Please refer to Figure 4 , Figure 4 is a flowchart of a PRS association method provided by the embodiment of the present application. As shown in Figure 4 , the PRS association method includes the following steps 401-404. Figure 4The method execution subject shown can be a terminal device, a network device, and a positioning management device, or the subject can be a chip in the terminal device, a chip in the network device, and a chip in the network device. Figure 4 The method execution subject is taken as an example of a terminal device, a network device, and a positioning management device. Among them:

[0133] 401. The network device sends first configuration information to the positioning management device, the first configuration information indicating an association relationship between PRSs on at least two frequency points.

[0134] The network device can be an access network device, such as a base station, ng-eNB, or gNB, etc. One network device can include one or more cells, and each cell can include one or more transmission reception points (TRPs) or transmission points (TPs).

[0135] The network device can send one or more first configuration information to the positioning management device, and one first configuration information corresponds to one TRP or TP. For example, if the network device has two TRPs, TRP1 and TRP2. The network device can send the first configuration information 1 corresponding to TRP1 and the first configuration information 2 corresponding to TRP2 to the positioning management device. The first configuration information 1 and the first configuration information 2 can be sent to the positioning management device through a message. The first configuration information 1 is used to indicate the association relationship between PRSs on at least two frequency points of TRP1. The first configuration information 2 is used to indicate the association relationship between PRSs on at least two frequency points of TRP2. Optionally, the association relationship in the embodiment of the application can also be called an aggregation relationship or other names, and the first configuration information can also be called PRS configuration or other names, and the frequency point in the embodiment of the application can also be called a positioning frequency point.

[0136] In a possible implementation, the first configuration information indicates the association relationship between PRS resources on at least two frequency points. That is, the first configuration information can indicate the association relationship between PRSs on at least two frequency points by indicating the association relationship between PRS resources on at least two frequency points, which can accurately and finely indicate the association relationship between PRSs on at least two frequency points. For example, if the first configuration information indicates that PRS resource 1 and PRS resource 2 have an association relationship, the first configuration information is equivalent to indicating that the PRS corresponding to PRS resource 1 and the PRS corresponding to PRS resource 2 have an association relationship.

[0137] Optionally, the first configuration information comprises configuration information of a plurality of frequency points, the configuration information of a frequency point comprising an index of the frequency point and configuration information of a PRS resource set in the frequency point; the configuration information of the PRS resource set comprising an index of the PRS resource set and configuration information of a PRS resource in the PRS resource set; the configuration information of the PRS resource comprising an index of the PRS resource. That is, the first configuration information can also indicate which frequency points have which PRS resource sets, and which PRS resources are in the PRS resource sets.

[0138] For example, as shown in FIG. 3, TRP1 has three frequency points, i.e., frequency point 1 to frequency point 3. The first configuration information corresponding to TRP1 comprises configuration information of frequency point 1 to configuration information of frequency point 3. Taking the configuration information of frequency point 1 as an example, the configuration information of frequency point 1 comprises an index of frequency point 1. Since frequency point 1 comprises PRS resource set 1 and PRS resource set 2, the configuration information of frequency point 1 further comprises configuration information of PRS resource set 1 and configuration information of PRS resource set 2. Optionally, the configuration information of frequency point 1 can further comprise other attribute information of frequency point 1. Figure 5

[0139] The configuration information of PRS resource set 1 comprises an index of PRS resource set 1. Since PRS resource set 1 comprises PRS resource 11 and PRS resource 12, the configuration information of PRS resource set 1 further comprises configuration information of PRS resource 11 and configuration information of PRS resource 12. The configuration information of PRS resource 11 comprises an index of PRS resource 11. The configuration information of PRS resource 12 comprises an index of PRS resource 12.

[0140] The configuration information of PRS resource set 2 comprises an index of PRS resource set 2. Since PRS resource set 2 comprises PRS resource 21 and PRS resource 22, the configuration information of PRS resource set 2 further comprises configuration information of PRS resource 21 and configuration information of PRS resource 22. The configuration information of PRS resource 21 comprises an index of PRS resource 21. The configuration information of PRS resource 22 comprises an index of PRS resource 22. Optionally, the configuration information of a PRS resource set can further comprise other attribute information of the PRS resource set. The configuration information of a PRS resource can further comprise other attribute information of the PRS resource.

[0141] That is, the first configuration information indicates that TRP1 comprises PRS resource set 1 and PRS resource set 2 in frequency point 1. PRS resource set 1 comprises PRS resource 11 and PRS resource 12, and PRS resource set 2 comprises PRS resource 21 and PRS resource 22. The same applies to other frequency points, which will not be described herein.

[0142] ​The first configuration information indicates an association relationship between PRS resources on at least two frequency points, which can have the following three specific implementation manners:

[0143] ① The configuration information of the first PRS resource set further includes an index of at least one second PRS resource set, to indicate that the PRS resources included in the first PRS resource set and the PRS resources included in the at least one second PRS resource set have an association relationship. The first PRS resource set and the second PRS resource set are resource sets on different frequency points configured by the first configuration information. Mode ① can indicate PRS resources having an association relationship based on resource set granularity, which is beneficial to saving signaling overhead.

[0144] For example, the information element structure of the configuration information of the first PRS resource set can be as follows:

[0145]

[0146] NR-DL-PRS-Info-r16 indicates the configuration information of the first PRS resource set. The NR-DL-PRS-ResourceSetID-r16 in the configuration information of the first PRS resource set in the above underlined part indicates the index of the second PRS resource set.

[0147] For another example, as shown in Figure 6 , it is assumed that the configuration information of the PRS resource set 1 under the frequency point 1 includes the index of the PRS resource set 3 under the frequency point 2 and the index of the PRS resource set 5 under the frequency point 3. Then the first configuration information indicates that the PRS resources included in the PRS resource set 1, the PRS resources included in the PRS resource set 3, and the PRS resources included in the PRS resource set 5 have an association relationship.

[0148] ② The index of the first PRS resource set and the index of at least one second PRS resource set are configured to be the same, to indicate that the PRS resources included in the first PRS resource set and the at least one second PRS resource set have an association relationship. The first PRS resource set and the second PRS resource set are resource sets on different frequency points configured by the first configuration information. Mode ② can indicate PRS resources having an association relationship based on resource set granularity, and mode ② does not need to add additional information in the first configuration information to indicate PRS resources having an association relationship, which is beneficial to saving signaling overhead.

[0149] For example, as shown in Figure 7As shown, assume that the index of PRS resource set 1 under frequency point 1 is #1. The index of PRS resource set 3 under frequency point 2 is #1. The index of PRS resource set 5 under frequency point 3 is #1. Then the first configuration information indicates that the PRS resources included in PRS resource set 1, the PRS resources included in PRS resource set 3 and the PRS resources included in PRS resource set 5 have an association relationship. The index of PRS resource set 2 under frequency point 1 is #2. The index of PRS resource set 4 under frequency point 2 is #2. The index of PRS resource set 6 under frequency point 3 is #2. Then the first configuration information indicates that the PRS resources included in PRS resource set 2, the PRS resources included in PRS resource set 4 and the PRS resources included in PRS resource set 6 have an association relationship.

[0150] In a possible implementation, in the manner ① and the manner ②, the PRS resources included in the first PRS resource set and the PRS resources included in the at least one second PRS resource set have an association relationship, specifically: a first PRS resource in the first PRS resource set and a second PRS resource in the at least one second PRS resource set have an association relationship; and the first PRS resource and the second PRS resource satisfy one or more of the following conditions: the first PRS resource and the second PRS resource have the same PRS resource index; the first PRS resource and the second PRS resource occupy the same symbol or the first PRS resource and the second PRS resource are transmitted simultaneously; or the first PRS resource and the second PRS resource have a quasi co-location (QCL) relationship. That is, if a PRS resource in the first PRS resource set and a PRS resource in the second PRS resource set satisfy one or more of the above three conditions, the two PRS resources have an association relationship.

[0151] For example, the first PRS resource and the second PRS resource satisfy any one of the following 7 cases: 1, the first PRS resource and the second PRS resource have the same PRS resource index. 2, the first PRS resource and the second PRS resource occupy the same symbol or the first PRS resource and the second PRS resource are transmitted at the same time. 3, the first PRS resource and the second PRS resource have a quasi co-location (QCL) relationship. 4, the first PRS resource and the second PRS resource have the same PRS resource index, and the first PRS resource and the second PRS resource occupy the same symbol or the first PRS resource and the second PRS resource are transmitted at the same time. 5, the first PRS resource and the second PRS resource have the same PRS resource index, and the first PRS resource and the second PRS resource have a quasi co-location (QCL) relationship. 6, the first PRS resource and the second PRS resource occupy the same symbol or the first PRS resource and the second PRS resource are transmitted at the same time, and the first PRS resource and the second PRS resource have a quasi co-location (QCL) relationship. 7, the first PRS resource and the second PRS resource have the same PRS resource index, and the first PRS resource and the second PRS resource occupy the same symbol or the first PRS resource and the second PRS resource are transmitted at the same time, and the first PRS resource and the second PRS resource have a quasi co-location (QCL) relationship.

[0152] Wherein, the first PRS resource and the second PRS resource are transmitted at the same time can be understood as the first PRS resource and the second PRS resource occupy the same symbol, or can be understood as the first PRS resource and the second PRS resource occupy the same symbol but different due to timing, resulting in the first PRS resource and the second PRS resource transmitted at the same time.

[0153] Take the first PRS resource and the second PRS resource satisfying the above-mentioned 4th case as an example. As shown in FIG. 11, it is assumed that the index of PRS resource 11, the index of PRS resource 31 and the index of PRS resource 51 are all #11, and PRS resource 11, PRS resource 31 and PRS resource 51 are transmitted at the same time, then the three PRS resources are associated. It is assumed that the index of PRS resource 12, the index of PRS resource 32 and the index of PRS resource 52 are all #12, and PRS resource 12, PRS resource 32 and PRS resource 52 are transmitted at the same time, then the three PRS resources are associated. Figure 7

[0154] ​The configuration information of the first PRS resource further includes at least one first index information, the first index information includes an index of the second PRS resource set and an index of the second PRS resource in the second PRS resource set, to indicate that the first PRS resource and the second PRS resource have an association relationship, and the first PRS resource and the second PRS resource are resources on different frequency points configured by the first configuration information. Mode ③ can indicate PRS resources having an association relationship based on PRS resource granularity, and more accurately indicate the association relationship between PRS resources on different frequency points.

[0155] For example, the information element structure of the configuration information of the first PRS resource can be the following information element structure:

[0156]

[0157] NR-DL-PRS-Resource-r16 is the configuration information of the first PRS resource. The DL-PRS-ResourceID-Info-r17 in the above-mentioned underlined part is the first index information, the NR-DL-PRS-ResourceSetID-r16 in the above-mentioned underlined part is the index of the second PRS resource set, and the NR-DL-PRS-ResourceID-r16 in the above-mentioned underlined part is the index of the second PRS resource.

[0158] For example, as shown in FIG. 6, it is assumed that the configuration information of the PRS resource 11 includes the first index information 1 and the first index information 2. The first index information 1 includes the index of the PRS resource set 3 and the index of the PRS resource set 31. The first index information 2 includes the index of the PRS resource set 51 and the index of the PRS resource set 51. Then the first configuration information indicates that the PRS resource 11, the PRS resource 31 and the PRS resource 51 have an association relationship. Figure 8

[0159] In another possible implementation, the manner in which the first configuration information indicates the association relationship between PRSs on at least two frequency points is specifically: the first configuration information indicates the association relationship between PRS resource sets on at least two frequency points. That is, the first configuration information can indicate the association relationship between PRSs on at least two frequency points by indicating the association relationship between PRS resource sets on at least two frequency points, which can accurately indicate the association relationship between PRSs on at least two frequency points, and indicating the association relationship between PRSs on at least two frequency points in the granularity of PRS resource sets is beneficial to saving signaling overhead. For example, if the first configuration information indicates that the PRS resource set 1 and the PRS resource set 2 have an association relationship, the first configuration information is equivalent to indicating that the PRS in the PRS resource set 1 and the PRS in the PRS resource set 2 have an association relationship.

[0160] ​Optionally, the first configuration information comprises configuration information of a plurality of frequency points, the configuration information of a frequency point comprises an index of the frequency point and configuration information of a PRS resource set in the frequency point, the configuration information of the PRS resource set comprises an index of the PRS resource set and configuration information of a PRS resource in the PRS resource set, the configuration information of the PRS resource comprises an index of the PRS resource; the first configuration information indicates an association relationship between PRS resource sets on at least two frequency points, which can have the following two specific implementation manners:

[0161] ① The configuration information of the first PRS resource set further comprises an index of at least one second PRS resource set, to indicate that the first PRS resource set and the at least one second PRS resource set have an association relationship, and the first PRS resource set and the at least one second PRS resource set are resource sets on different frequency points configured by the first configuration information. Mode ① can accurately indicate the association relationship between PRS resource sets. The information element structure of the first PRS resource set can refer to the information element structure of the first PRS resource set in the method embodiment described above, and will not be described here.

[0162] ② The index of the first PRS resource set is configured to be the same as the index of at least one second PRS resource set, to indicate that the first PRS resource set and the at least one second PRS resource set have an association relationship, and the first PRS resource set and the at least one second PRS resource set are resource sets on different frequency points configured by the first configuration information. Mode ② can indicate the association relationship between PRS resource sets without adding extra information in the first configuration information, which is beneficial to saving signaling overhead.

[0163] Optionally, a first PRS in the first PRS resource set has an association relationship with a second PRS in at least one second PRS resource set; the first PRS and the second PRS satisfy one or more of the following conditions: the resource index of the first PRS is the same as the resource index of the second PRS; the first PRS and the second PRS occupy the same symbol or the first PRS and the second PRS are transmitted at the same time; or, the first PRS and the second PRS have a quasi co-location (QCL) relationship.

[0164] For example, the first PRS and the second PRS satisfy any one of the following 7 cases: 1, the first PRS and the second PRS have the same resource index. 2, the first PRS and the second PRS occupy the same symbol or the first PRS and the second PRS are transmitted at the same time. 3, the first PRS and the second PRS have a quasi co-location (QCL) relationship. 4, the first PRS and the second PRS have the same resource index, and the first PRS and the second PRS occupy the same symbol or the first PRS and the second PRS are transmitted at the same time. 5, the first PRS and the second PRS have the same resource index, and the first PRS and the second PRS have a quasi co-location (QCL) relationship. 6, the first PRS and the second PRS occupy the same symbol or the first PRS and the second PRS are transmitted at the same time, and the first PRS and the second PRS have a quasi co-location (QCL) relationship. 7, the first PRS and the second PRS have the same resource index, and the first PRS and the second PRS occupy the same symbol or the first PRS and the second PRS are transmitted at the same time, and the first PRS and the second PRS have a quasi co-location (QCL) relationship.

[0165] In a possible implementation, the network device can actively send the first configuration information to the positioning management device. Alternatively, the network device can also send the first configuration information to the positioning management device after receiving the request sent by the positioning management device for requesting the first configuration information.

[0166] 402、The positioning management device sends second configuration information to the terminal device, the second configuration information indicating an association relationship between PRSs on at least two frequency points.

[0167] In the embodiments of the present application, after the positioning management device receives the first configuration information sent by the network device, the second configuration information is sent to the terminal device. The second configuration information can be obtained based on the first configuration information. The first configuration information can be the same as or different from the second configuration information. For example, the first configuration information indicates that PRS 11 on frequency point 1, PRS 31 on frequency point 2 and PRS 51 on frequency point 3 have an association relationship. The second configuration information can only indicate that PRS 11 on frequency point 1 and PRS 31 on frequency point 2 have an association relationship.

[0168] The positioning management device can send one or more second configuration information to the terminal device, one second configuration information corresponding to one TRP or TP. For example, if the network device has two TRPs, TRP1 and TPR2. The network device sends the first configuration information 1 corresponding to TRP1 and the first configuration information 2 corresponding to TRP2 to the positioning management device. The first configuration information 1 indicates the association relationship between PRSs on at least two frequency points of TRP1. The first configuration information 2 indicates the association relationship between PRSs on at least two frequency points of TRP2. After receiving the first configuration information 1 and the first configuration information 2, the positioning management device sends the second configuration information 1 corresponding to TRP1 and the second configuration information 2 corresponding to TRP2 to the terminal device. The second configuration information 1 and the second configuration information 2 can be sent to the terminal device through a message. The second configuration information 1 indicates the association relationship between PRSs on at least two frequency points of TRP1, and the second configuration information 1 can be obtained based on the first configuration information 1. The second configuration information 2 indicates the association relationship between PRSs on at least two frequency points of TRP2, and the second configuration information 2 can be obtained based on the first configuration information 2. Alternatively, after receiving the first configuration information 1 and the first configuration information 2, the positioning management device can only send the second configuration information 1 or only send the second configuration information 2.

[0169] The second configuration information can also include configuration information of multiple frequency points, the configuration information of a frequency point including an index of the frequency point and configuration information of a PRS resource set in the frequency point; the configuration information of the PRS resource set including an index of the PRS resource set and configuration information of a PRS resource in the PRS resource set; the configuration information of the PRS resource including an index of the PRS resource. That is, the second configuration information can also indicate which PRS resource sets the TRP has on which frequency points, and which PRS resources the TRP has in the PRS resource sets.

[0170] The second configuration information can include part of the configuration information of the frequency points in the first configuration information, or the second configuration information can include all the configuration information of the frequency points in the first configuration information. For example, the first configuration information includes configuration information of frequency point 1, configuration information of frequency point 2 and configuration information of frequency point 3, and the second configuration information can only include configuration information of frequency point 1 and configuration information of frequency point 2.

[0171] In a possible implementation, the positioning management device can determine which configuration information of the frequency points in the first configuration information should be included in the second configuration information based on the capability information of the terminal device. Or a part of the configuration information of the frequency points is selected from the first configuration information and included in the second configuration information through other ways.

[0172] In a possible implementation, the manner in which the second configuration information indicates the association relationship between the PRSs on the at least two frequency points is specifically as follows: The second configuration information indicates the association relationship between the PRS resources on the at least two frequency points. That is, the second configuration information can indicate the association relationship between the PRSs on the at least two frequency points by indicating the association relationship between the PRS resources on the at least two frequency points, which can accurately and finely indicate the association relationship between the PRSs on the at least two frequency points. For example, if the second configuration information indicates that PRS resource 1 and PRS resource 2 have an association relationship, the second configuration information is equivalent to indicating that the PRS corresponding to PRS resource 1 and the PRS corresponding to PRS resource 2 have an association relationship.

[0173] Optionally, the second configuration information includes configuration information of a plurality of frequency points, the configuration information of a frequency point includes an index of the frequency point and configuration information of a PRS resource set in the frequency point, the configuration information of the PRS resource set includes an index of the PRS resource set and configuration information of a PRS resource in the PRS resource set, and the configuration information of the PRS resource includes an index of the PRS resource. The second configuration information indicating the association relationship between the PRS resources on the at least two frequency points can have the following three implementation manners:

[0174] ① The configuration information of the third PRS resource set further includes an index of at least one fourth PRS resource set, to indicate that the PRS resources included in the third PRS resource set and the PRS resources included in the at least one fourth PRS resource set have an association relationship, and the third PRS resource set and the at least one fourth PRS resource set are resource sets on different frequency points configured by the second configuration information. The manner ① can indicate the PRS resources having an association relationship based on a resource set granularity, which is beneficial to saving signaling overhead.

[0175] The principle of the manner ① in which the second configuration information indicates the association relationship between the PRS resources is the same as the principle of the manner ① in which the first configuration information indicates the association relationship between the PRS resources, which is not described herein.

[0176] ② The index of the third PRS resource set is configured to be the same as the index of at least one fourth PRS resource set, to indicate that the PRS resources included in the third PRS resource set and the PRS resources included in the at least one fourth PRS resource set have an association relationship, and the third PRS resource set and the at least one fourth PRS resource set are resource sets on different frequency points configured by the second configuration information. The manner ② can indicate the PRS resources having an association relationship based on a resource set granularity, and the manner ② does not need to add additional information in the second configuration information to indicate the PRS resources having an association relationship, which is beneficial to saving signaling overhead.

[0177] The principle of the second configuration information indicating the association relationship between PRS resources in mode ② is the same as that of the first configuration information indicating the association relationship between PRS resources in mode ②, which is not repeated here.

[0178] Optionally, in mode ① and mode ②, the PRS resources included in the third PRS resource set and the PRS resources included in the at least one fourth PRS resource set have an association relationship, specifically: the third PRS resource in the third PRS resource set and the fourth PRS resource in the at least one fourth PRS resource set have an association relationship; the third PRS resource and the fourth PRS resource satisfy one or more of the following conditions: the third PRS resource and the fourth PRS resource have the same PRS resource index; the third PRS resource and the fourth PRS resource occupy the same symbol or the third PRS resource and the fourth PRS resource are transmitted at the same time; or, the third PRS resource and the fourth PRS resource have a quasi co-location (QCL) relationship.

[0179] ③The configuration information of the third PRS resource further includes at least one second index information, the second index information includes an index of the fourth PRS resource set and an index of the fourth PRS resource in the fourth PRS resource set, to indicate that the third PRS resource and the at least one fourth PRS resource have an association relationship, and the third PRS resource and the at least one fourth PRS resource are resources on different frequency points configured by the second configuration information. Mode ③ can indicate PRS resources having an association relationship based on PRS resource granularity, and more finely indicate the association relationship between PRS resources on different frequency points.

[0180] The principle of the second configuration information indicating the association relationship between PRS resources in mode ③ is the same as that of the first configuration information indicating the association relationship between PRS resources in mode ③, which is not repeated here.

[0181] In another possible implementation, the manner in which the second configuration information indicates the association relationship between PRSs on at least two frequency points is specifically: the second configuration information indicates the association relationship between PRS resource sets on at least two frequency points. That is, the second configuration information can indicate the association relationship between PRSs on at least two frequency points by indicating the association relationship between PRS resource sets on at least two frequency points, which can accurately indicate the association relationship between PRSs on at least two frequency points, and indicating the association relationship between PRSs on at least two frequency points in the PRS resource set granularity is beneficial to saving signaling overhead. For example, if the second configuration information indicates that PRS resource set 1 and PRS resource set 2 have an association relationship, the second configuration information is equivalent to indicating that the PRS in PRS resource set 1 and the PRS in PRS resource set 2 have an association relationship.

[0182] Optionally, the second configuration information includes configuration information of multiple frequency points, the configuration information of a frequency point including an index of the frequency point and configuration information of a PRS resource set in the frequency point, the configuration information of the PRS resource set including an index of the PRS resource set and configuration information of a PRS resource in the PRS resource set, the configuration information of the PRS resource including an index of the PRS resource; the first configuration information indicates an association relationship between PRS resource sets on at least two frequency points, which can have the following two specific implementation manners:

[0183] ① The configuration information of the third PRS resource set further includes an index of at least one fourth PRS resource set, to indicate that the third PRS resource set and the at least one fourth PRS resource set have an association relationship, and the third PRS resource set and the at least one fourth PRS resource set are resource sets on different frequency points configured by the second configuration information. Mode ① can accurately indicate the association relationship between PRS resource sets.

[0184] ② The index of the third PRS resource set is configured to be the same as the index of at least one fourth PRS resource set, to indicate that the third PRS resource set and the at least one fourth PRS resource set have an association relationship, and the third PRS resource set and the at least one fourth PRS resource set are resource sets on different frequency points configured by the second configuration information. Mode ② can indicate the association relationship between PRS resource sets without adding additional information in the second configuration information, which is beneficial to saving signaling overhead.

[0185] Optionally, a third PRS in the third PRS resource set has an association relationship with a fourth PRS in the at least one fourth PRS resource set; the third PRS and the fourth PRS satisfy one or more of the following conditions: the resource index of the third PRS is the same as the resource index of the fourth PRS; the third PRS and the fourth PRS occupy the same symbol or the third PRS and the fourth PRS are transmitted at the same time; or the third PRS and the fourth PRS have a quasi co-location (QCL) relationship.

[0186] 403. The network device transmits PRSs with an association relationship, and the PRSs with the association relationship share antenna ports or the PRSs with the association relationship have a phase difference.

[0187] In the embodiment of the application, when the network device transmits PRSs with an association relationship, the network device causes the PRSs with the association relationship to share antenna ports or causes the PRSs with the association relationship to have a phase difference. Optionally, the network device specifically transmits the PRSs with the association relationship through a TRP or a TP.

[0188] The antenna port is defined as a channel carried by a certain antenna port on a symbol can be inferred from a signal carried by the antenna port on another symbol. In other words, if a channel carried by a certain antenna port on a symbol can be inferred from a channel carried by another antenna port on another symbol, the two antenna ports are the same antenna port. In an embodiment of the present application, the PRSs having the association relationship share the same antenna port means that the antenna ports of the PRSs having the association relationship are the same antenna port. The PRSs having the association relationship share the same antenna port can also be understood as: the PRSs having the association relationship have the same channel, or the PRSs having the association relationship have continuous phases, or the PRSs having the association relationship have the same phase.

[0189] In a possible implementation, during the measurement of the PRSs having the association relationship by the terminal device, the phase difference between the PRSs having the association relationship is a fixed value. For example, it is assumed that the PRS 11, the PRS 31 and the PRS 51 have the association relationship. During the measurement of the PRSs having the association relationship by the terminal device, the phase difference between the PRS 11 and the PRS 31 is a fixed value 1, the phase difference between the PRS 11 and the PRS 51 is a fixed value 2, and the phase difference between the PRS 31 and the PRS 51 is a fixed value 3. The fixed value 1, the fixed value 2 and the fixed value 3 can be the same or different. By making the phase difference between the PRSs having the association relationship a fixed value during the measurement of the PRSs having the association relationship by the terminal device, the terminal device can accurately estimate the phase difference between the PRSs having the association relationship.

[0190] Optionally, during the measurement of the PRSs having the association relationship by the terminal device, the phase difference between the PRSs having the association relationship changes very little, which can also be understood as that the phase difference between the PRSs having the association relationship is a fixed value during the measurement of the PRSs having the association relationship by the terminal device.

[0191] In a possible implementation, the first configuration information and the second configuration information are further used to indicate that the PRSs having the association relationship share the same antenna port and the PRSs having the association relationship have the phase difference. For example, the protocol can define the following two association types: the PRSs having the association relationship share the same antenna port and the PRSs having the association relationship have the phase difference. The network device can select one association type from the two association types according to the requirement, and indicate the selected association type to the positioning management device through the first configuration information. The positioning management device indicates the selected association type to the terminal device through the second configuration information. After receiving the second configuration information, the terminal device measures the PRSs having the association relationship by using the measurement method corresponding to the association type indicated by the second configuration information. Based on the possible implementation, the network side can flexibly configure the type of the association relationship to the terminal device.

[0192] Alternatively, the type of the association relationship can not be indicated by the first configuration information and the second configuration information, and the protocol can directly specify a certain type of association. For example, the protocol can directly specify that PRS resources having an association relationship share antenna ports, or the protocol can directly specify that PRS resources having an association relationship have a fixed phase difference, or the protocol can directly specify that PRS resources having an association relationship have a quasi co-location (QCL) relationship.

[0193] 404、The terminal device measures the PRS having the association relationship.

[0194] In the embodiments of the present application, after the terminal device receives the second configuration information sent by the positioning management device, the terminal device measures the PRS having the association relationship. Specifically, the terminal device can jointly measure the PRS having the association relationship.

[0195] In the embodiments of the present application, after the terminal device receives the second configuration information, the terminal device measures the PRS having the association relationship.

[0196] For example, it is assumed that PRS 11, PRS 31 and PRS 51 have an association relationship. If the PRS having the association relationship share antenna ports, PRS 11, PRS 31 and PRS 51 will experience exactly the same channel, and the terminal device will simultaneously measure the channel experienced by PRS 11, PRS 31 and PRS 51. It can be equivalently regarded as that the network device sends a new PRS with a bandwidth equal to the sum of PRS 11, PRS 31 and PRS 51, and the terminal device also receives this new PRS, which is equivalent to expanding the signal bandwidth. Since the positioning accuracy depends largely on the signal bandwidth, the positioning accuracy can be improved.

[0197] For example, PRS 11, PRS 31, and PRS 51 are associated. If these associated PRSs have a phase difference, meaning that the channels traversed by PRS 11, PRS 31, and PRS 51 are identical except for the phase difference, the terminal device can estimate this phase difference and then use it to compensate for the channel phases of certain PRSs among PRS 11, PRS 31, and PRS 51. This allows the channels of PRS 11, PRS 31, and PRS 51 to have the same phase, thus allowing PRS 11, PRS 31, and PRS 51 to share the same antenna port. Based on the previous analysis, sharing the antenna port for PRS 11, PRS 31, and PRS 51 is equivalent to expanding the signal bandwidth. Since positioning accuracy is largely dependent on signal bandwidth, this can improve positioning accuracy. On the other hand, even if the terminal device cannot estimate the phase difference and does not compensate for it, the terminal can still combine the measurement results on the PRS 11, PRS 31, and PRS 51 channels to obtain frequency diversity gain and improve positioning accuracy, but it cannot obtain equivalent large bandwidth gain.

[0198] It can be seen that based on Figure 4 The described method allows the network to configure for terminal devices which PRSs share antenna ports or which PRSs have phase differences. Sharing antenna ports for multiple PRSs means that they traverse the exact same channel. This can be considered equivalent to the network device sending a new PRS whose bandwidth is equivalent to the sum of the bandwidths of the multiple PRSs. Therefore, sharing antenna ports for multiple PRSs can expand the signal bandwidth. Therefore, by configuring the terminal device to determine which PRSs share antenna ports, it is possible to configure high-bandwidth PRSs. By configuring the terminal device to determine which PRSs have phase differences, the terminal device can estimate the phase differences between these PRSs and then use this phase difference to compensate for the channel phase of the PRSs, thereby enabling multiple PRSs to share antenna ports and expand the signal bandwidth. Therefore, by configuring the terminal device to determine which PRSs have phase differences, it is also possible to configure high-bandwidth PRSs.

[0199] In a possible implementation, the PRSs having the association relationship and the PRSs having the phase difference can also be replaced by PRSs having a QCL relationship. The PRSs having the association relationship have one or more same or similar communication characteristics, and for the PRSs having the association relationship, the same or similar communication configuration can be used. The PRSs having the association relationship have the same large-scale characteristics. The large-scale characteristics can include delay spread, average delay, Doppler spread, Doppler frequency shift, average gain, reception parameter, terminal reception beam number, transmission / reception channel correlation, reception angle of arrival, spatial correlation of receiver antenna, main angel-of-arrival (AoA), average angle of arrival or AoA spread, and the like.

[0200] For example, the PRS 11, the PRS 31, and the PRS 51 have the association relationship. If the PRSs having the association relationship have the QCL relationship, the terminal device can measure the PRS 11 to obtain a measurement result 1, measure the PRS 31 to obtain a measurement result 2, and measure the PRS 51 to obtain a measurement result 3. Then, an average of the measurement result 1, the measurement result 2, and the measurement result 3 is determined, and the average is taken as a final measurement result. Since the terminal device obtains the final measurement result based on the measurement results of the multiple PRSs, the accuracy of the final measurement result is high, and the positioning accuracy is improved.

[0201] For example, the PRS 11, the PRS 31, and the PRS 51 have the association relationship. If the PRSs having the association relationship have the QCL relationship, the terminal device can measure the PRS 11 to obtain a measurement result 1, measure the PRS 31 to obtain a measurement result 2, and measure the PRS 51 to obtain a measurement result 3. Then, an average of the measurement result 1, the measurement result 2, and the measurement result 3 is determined, and the average is taken as a final measurement result. Since the terminal device obtains the final measurement result based on the measurement results of the multiple PRSs, the accuracy of the final measurement result is high, and the positioning accuracy is improved. Figure 9 Figure 9 is a flowchart of another method for associating PRSs provided by an embodiment of the present application. As shown in Figure 9 the method execution subject can be a terminal device, a network device, and a positioning management device, or the subject can be a chip in the terminal device, a chip in the network device, and a chip in the network device. Figure 9 For example, the terminal device, the network device, and the positioning management device are taken as the execution subject of the method. Figure 9

[0202] 901. The network device sends first configuration information to the positioning management device, where the first configuration information indicates an association relationship between PRSs on at least two frequency points.

[0203] The specific implementation of step 901 can refer to the specific implementation of step 401 described above, and details are not described herein.

[0204] 902. The terminal device sends capability information to the positioning management device.

[0205] ​​The capability information is used to indicate one or more of the following information: a maximum aggregated bandwidth supported by the terminal device, a maximum number of aggregated frequency points supported by the terminal device, whether the terminal device supports joint measurement on PRSs on multiple frequency points or a capability of the terminal device for joint processing of PRSs on multiple frequency points; wherein the aggregated bandwidth is a bandwidth formed by PRSs having an association relationship. The number of aggregated frequency points is a number of frequency points on which PRS resources having an association relationship are located.

[0206] For example, PRS 11, PRS 31 and PRS 51 have an association relationship. PRS 12, PRS 32 and PRS 52 have an association relationship. The bandwidth formed by PRS 11, PRS 31 and PRS 51 is aggregated bandwidth 1. The bandwidth formed by PRS 12, PRS 32 and PRS 52 is aggregated bandwidth 2. If the maximum aggregated bandwidth supported by the terminal device is 200MHz. Assuming that the aggregated bandwidth 1 is 150MHz and the aggregated bandwidth 2 is 250MHz, the terminal device supports PRS 11, PRS 31 and PRS 51 having an association relationship, and does not support PRS 12, PRS 32 and PRS 52 having an association relationship.

[0207] For another example, if PRS 11 on frequency point 1 and PRS 31 on frequency point 2 have an association relationship, the number of aggregated frequency points corresponding to the association relationship is 2. If PRS 11 on frequency point 1, PRS 31 on frequency point 2 and PRS 51 on frequency point 3 have an association relationship, the number of aggregated frequency points corresponding to the association relationship is 3. If the maximum number of aggregated frequency points supported by the terminal device is 2, the terminal device supports PRS 11 on frequency point 1 and PRS 31 on frequency point 2 having an association relationship, and does not support PRS 11 on frequency point 1, PRS 31 on frequency point 2 and PRS 51 on frequency point 3 having an association relationship.

[0208] For another example, the capability of the terminal device for joint processing of PRSs on multiple frequency points can be that the terminal device can jointly process PRSs on multiple frequency points for N ms every T ms.

[0209] By reporting the capability information of the terminal device to the positioning management device, the positioning management device can accurately determine which PRS configurations should be notified to the terminal device based on the capability information of the terminal device. Alternatively, the positioning management device can perform other operations based on the capability information of the terminal device.

[0210] In a possible implementation, the reporting granularity of the capability information is reporting per frequency band, or reporting per frequency band group, or reporting per frequency band within a frequency band group, or reporting per frequency band subset within a frequency band group. Based on this possible implementation, the capability information of the terminal device can be reported with a finer granularity.

[0211] The following will be introduced in detail respectively: reporting per frequency band, reporting per frequency band group, reporting per frequency band within a frequency band group, and reporting per frequency band subset within a frequency band group.

[0212] ①Reporting per frequency band. The terminal device reports one capability information for each frequency band of the terminal device. One frequency band can include one or more frequency points.

[0213] For example, the terminal device includes frequency band 1 and frequency band 2. The terminal device first reports the capability information corresponding to the frequency band 1, and then reports the capability information corresponding to the frequency band 2. The capability information corresponding to the frequency band 1 is used to indicate one or more of the following information: the maximum aggregated bandwidth supported by the terminal device under the frequency band 1, the maximum number of aggregated frequency points supported by the terminal device under the frequency band 1, whether the terminal device supports joint measurement of PRS on multiple frequency points under the frequency band 1, or the capability of the terminal device for joint processing of PRS on multiple frequency points under the frequency band 1.

[0214] The capability information corresponding to the frequency band 2 is used to indicate one or more of the following information: the maximum aggregated bandwidth supported by the terminal device under the frequency band 2, the maximum number of aggregated frequency points supported by the terminal device under the frequency band 2, whether the terminal device supports joint measurement of PRS on multiple frequency points under the frequency band 2, or the capability of the terminal device for joint processing of PRS on multiple frequency points under the frequency band 2.

[0215] ②Reporting per frequency band group. One frequency band group can include one or more frequency bands. It is assumed that the terminal device has 3 frequency band groups. They are frequency band group 1, frequency band group 2, and frequency band group 3. The frequency band group 1 includes the frequency band 1, the frequency band group 2 includes the frequency band 2, and the frequency band group 3 includes the frequency band 1+frequency band 2. The terminal device first reports the capability information corresponding to the frequency band group 1, then reports the capability information corresponding to the frequency band group 2, and then reports the capability information corresponding to the frequency band group 3.

[0216] The capability information corresponding to the frequency band group 1 is used to indicate one or more of the following information: the maximum aggregated bandwidth supported by the terminal device under the frequency band group 1, the maximum number of aggregated frequency points supported by the terminal device under the frequency band group 1, whether the terminal device supports joint measurement of PRS on multiple frequency points under the frequency band group 1, or the capability of the terminal device for joint processing of PRS on multiple frequency points under the frequency band group 1.

[0217] The capability information corresponding to the frequency band group 2 is used to indicate one or more of the following information: the maximum aggregated bandwidth supported by the terminal device under the frequency band group 2, the maximum number of aggregated frequency points supported by the terminal device under the frequency band group 2, whether the terminal device supports joint measurement of PRS on multiple frequency points under the frequency band group 2, or the capability of the terminal device for joint processing of PRS on multiple frequency points under the frequency band group 2.

[0218] The capability information corresponding to the frequency band group 3 is used to indicate one or more of the following information: a maximum aggregated bandwidth supported by the terminal device under the frequency band group 3, a maximum number of frequency points supported by the terminal device under the frequency band group 3, whether the terminal device supports joint measurement on PRSs on multiple frequency points under the frequency band group 3, or a capability of the terminal device for joint processing of PRSs on multiple frequency points under the frequency band group 3.

[0219] ③Report per frequency band in each frequency band group. It is assumed that the terminal device has three frequency band groups, i.e., a frequency band group 1, a frequency band group 2, and a frequency band group 3. The frequency band group 1 includes a frequency band 1, the frequency band group 2 includes a frequency band 2, and the frequency band group 3 includes the frequency band 1 + the frequency band 2. The terminal device first reports the capability information corresponding to the frequency band 1 in the frequency band group 1, then reports the capability information corresponding to the frequency band 2 in the frequency band group 2, then reports the capability information corresponding to the frequency band 1 in the frequency band group 3, and then reports the capability information corresponding to the frequency band 2 in the frequency band group 3.

[0220] ④Report per frequency band subset in each frequency band group. It is assumed that the terminal device has three frequency band groups, i.e., a frequency band group 1, a frequency band group 2, and a frequency band group 3. The frequency band group 1 includes a frequency band 1, the frequency band group 2 includes a frequency band 2, and the frequency band group 3 includes the frequency band 1 + the frequency band 2. The frequency band group 1 includes one frequency band subset, i.e., the frequency band 1. The frequency band group 2 includes one frequency band subset, i.e., the frequency band 2. The frequency band group 3 includes three frequency band subsets, i.e., the frequency band 1, the frequency band 2, and the frequency band 1 + the frequency band 2.

[0221] The terminal device first reports the capability information corresponding to the frequency band 1 in the frequency band group 1, then reports the capability information corresponding to the frequency band 2 in the frequency band group 2, then reports the capability information corresponding to the frequency band 1 in the frequency band group 3, then reports the capability information corresponding to the frequency band 2 in the frequency band group 3, and then reports the capability information corresponding to the frequency band 1 + the frequency band 2 in the frequency band group 3.

[0222] 903、The positioning management device sends second configuration information to the terminal device, the second configuration information indicating an association relationship between PRSs on at least two frequency points.

[0223] In a possible implementation, after receiving the capability information of the terminal device, the positioning management device sends second configuration information to the terminal device based on the capability information of the terminal device and the first configuration information.

[0224] For example, it is assumed that the terminal device reports the capability information in a way of reporting band by band. The terminal device first reports the capability information corresponding to the frequency band 1, and then reports the capability information corresponding to the frequency band 2. The capability information corresponding to the frequency band 1 is used to indicate that the maximum aggregation bandwidth supported by the terminal device under the frequency band 1 is 200 MHz, and the maximum number of aggregation frequency points supported by the terminal device under the frequency band 1 is 2. The capability information corresponding to the frequency band 2 is used to indicate that the maximum aggregation bandwidth supported by the terminal device under the frequency band 2 is 400 MHz, and the maximum number of aggregation frequency points supported by the terminal device under the frequency band 2 is 4.

[0225] The first configuration information indicates that the PRS 1 of the frequency point 1, the PRS 2 of the frequency point 2 and the PRS 3 of the frequency point 3 have an association relationship, and the PRS 4 of the frequency point 4, the PRS 5 of the frequency point 5 and the PRS 6 of the frequency point 6 have an association relationship. Among them, the frequency point 1, the frequency point 2 and the frequency point 3 belong to the frequency points in the frequency band 1. The frequency point 4, the frequency point 5 and the frequency point 6 belong to the frequency points in the frequency band 2.

[0226] The bandwidth composed of the PRS 1, the PRS 2 and the PRS 3 is 300 MHz, and the number of frequency points where the PRS 1, the PRS 2 and the PRS 3 are located is 3. The maximum aggregation bandwidth supported by the terminal device under the frequency band 1 is 200 MHz, and the maximum number of aggregation frequency points supported by the terminal device under the frequency band 1 is 2. Therefore, the terminal device does not support the PRS 1, the PRS 2 and the PRS 3 having an association relationship. The second configuration information does not need to indicate that the PRS 1, the PRS 2 and the PRS 3 have an association relationship.

[0227] The bandwidth composed of the PRS 4, the PRS 5 and the PRS 6 is 300 MHz, and the number of frequency points where the PRS 4, the PRS 5 and the PRS 6 are located is 3. The maximum aggregation bandwidth supported by the terminal device under the frequency band 2 is 400 MHz, and the maximum number of aggregation frequency points supported by the terminal device under the frequency band 2 is 4. Therefore, the terminal device supports the PRS 4, the PRS 5 and the PRS 6 having an association relationship. The second configuration information needs to indicate the PRS 4, the PRS 5 and the PRS 6.

[0228] 904、The network device sends the PRSs having an association relationship. Among them, the PRSs having an association relationship share antenna ports, and the PRSs having an association relationship have a phase difference.

[0229] 905、The terminal device measures the PRSs having an association relationship.

[0230] The related description of steps 904 and 905 can refer to the related description of steps 403 and 404 described above, and will not be described here. Optionally, in the whole text of the embodiments of the present application, the terminal device measuring the PRSs having an association relationship can also be replaced by: the terminal device receiving the PRSs having an association relationship.

[0231] In a possible implementation, the specific implementation manner of the terminal device performing measurement on the PRSs having the association relationship is that the terminal device performs measurement on the PRSs having the association relationship when the PRSs having the association relationship satisfy a first condition, and the first condition includes any one or more of the following conditions:

[0232] The subcarrier spacings of the PRSs having the association relationship are the same;

[0233] The cyclic prefix types of the PRSs having the association relationship are the same;

[0234] The PRSs having the association relationship occupy the same symbol, or the time domains of the PRSs having the association relationship overlap or partially overlap;

[0235] The total bandwidth of the PRSs having the association relationship is less than the maximum aggregation bandwidth supported by the terminal device; or

[0236] The number of frequency points of the PRSs having the association relationship is less than the maximum number of associated frequency points supported by the terminal device.

[0237] For example, it is assumed that PRS 1 of frequency point 1, PRS 2 of frequency point 2, and PRS 3 of frequency point 3 have the association relationship. The frequency point 1, the frequency point 2, and the frequency point 3 belong to the frequency points on the frequency band 1. If the subcarrier spacing of the PRS 1, the subcarrier spacing of the PRS 2, and the subcarrier spacing of the PRS 3 are the same, and the cyclic prefix type of the PRS 1, the cyclic prefix type of the PRS 2, and the cyclic prefix type of the PRS 3 are the same, and the symbol of the PRS 1, the symbol of the PRS 2, and the symbol of the PRS 3 are the same, and the bandwidth of the PRS 1, the PRS 2, and the PRS 3 is less than the maximum aggregation bandwidth supported by the terminal device on the frequency band 1, and the number of frequency points of the PRS 1, the PRS 2, and the PRS 3 is less than the maximum number of associated frequency points supported by the terminal device on the frequency band 1, the terminal device performs joint measurement on the PRS 1, the PRS 2, and the PRS 3.

[0238] When the subcarrier spacings of the PRSs having the association relationship are the same, or the cyclic prefix types of the PRSs having the association relationship are the same, or the PRSs having the association relationship occupy the same symbol, or the time domains of the PRSs having the association relationship partially overlap, the terminal device can more conveniently perform joint measurement on the PRSs having the association relationship.

[0239] The positioning management device can determine PRS configurations in the second configuration information based on the capability information of the plurality of terminal devices, and then broadcast the second configuration information to the plurality of terminal devices. Then, for a certain terminal device, the total bandwidth of the PRSs having the association relationship can be greater than the maximum aggregation bandwidth supported by the terminal device, or the number of frequency points where the PRSs having the association relationship are located can be greater than the maximum number of associated frequency points supported by the terminal device. Therefore, before joint measurement is performed on the PRSs having the association relationship, it can be determined whether the total bandwidth of the PRSs having the association relationship is less than the maximum aggregation bandwidth supported by the terminal device, or whether the number of frequency points where the PRSs having the association relationship are located is less than the maximum number of associated frequency points supported by the terminal device. When the total bandwidth of the PRSs having the association relationship is less than the maximum aggregation bandwidth supported by the terminal device, or the number of frequency points where the PRSs having the association relationship are located is less than the maximum number of associated frequency points supported by the terminal device, joint measurement is performed on the PRSs having the association relationship, which can ensure that the terminal device successfully performs joint measurement on the PRSs having the association relationship.

[0240] Optionally, if the total bandwidth of the PRSs having the association relationship is greater than the maximum aggregation bandwidth supported by the terminal device, or the number of frequency points where the PRSs having the association relationship are located is greater than the maximum number of associated frequency points supported by the terminal device, the terminal device determines a PRS combination of the maximum bandwidth supported by the terminal device from the PRSs having the association relationship; and the terminal device performs measurement on the signals on the PRS combination. Based on this possible implementation, even if the total bandwidth of the PRSs having the association relationship is greater than the maximum aggregation bandwidth supported by the terminal device, or the number of frequency points where the PRSs having the association relationship are located is greater than the maximum number of associated frequency points supported by the terminal device, the terminal device can perform joint measurement on the PRSs on multiple frequency points.

[0241] For example, the bandwidth of PRS 1, PRS 2 and PRS 3 is 300MHz. The maximum aggregation bandwidth supported by the terminal device under frequency band 1 is 200MHz. Therefore, the bandwidth of PRS 1, PRS 2 and PRS 3 is greater than the maximum aggregation bandwidth supported by the terminal device under frequency band 1. The bandwidth of PRS 1 and PRS 2 is 200MHz, the bandwidth of PRS 1 and PRS 3 is 150MHz, and the bandwidth of PRS 2 and PRS 3 is 150MHz. The terminal device performs joint measurement on the signals on PRS 1 and PRS 2.

[0242] Of course the positioning management device can also send specific second configuration information for each terminal device according to the capability information of each terminal device, the association relationship indicated by the second configuration information is supported by the terminal device. That is, the second configuration information is not broadcast to multiple terminal devices, and the second configuration information received by each terminal device can be different. In this way, the terminal device can no longer need to determine whether the association relationship is supported by the terminal device. Or, even if the positioning management device sends specific second configuration information to each terminal device according to the capability information of each terminal device, the terminal device can reconfirm whether the association relationship indicated by the second configuration information is supported by the terminal device.

[0243] 906、The terminal device sends the measurement result to the positioning management device; wherein the measurement result is obtained by the terminal device measuring the signals on the PRSs with the association relationship, and the measurement result includes the index of the resource set in which the PRSs with the association relationship are located and / or the resource index of the PRSs with the association relationship.

[0244] In the embodiment of the present application, after the terminal device measures the PRSs with the association relationship, the terminal device sends the measurement result to the positioning management device.

[0245] For example, PRS 1 in PRS resource set 1, PRS 2 in PRS resource set 2 and PRS 3 in PRS resource set 3 have an association relationship. The terminal device jointly measures PRS 1, PRS 2 and PRS 3 to obtain measurement result 1. The measurement result 1 includes the index of PRS resource set 1 and the resource index of PRS 1, the index of PRS resource set 2 and the resource index of PRS 2, the index of PRS resource set 3 and the resource index of PRS 3. In this way, the positioning management device can determine on which PRSs the measurement result 1 is obtained. Or, if the resource indexes of the PRSs in different PRS resource sets are different, the measurement result 1 can only include the index of PRS 1, the index of PRS 2 and the index of PRS 3. Or, the measurement result 1 can only include the index of PRS resource set 1 and the resource index of PRS 1, the index of PRS resource set 2 and the index of PRS resource set 3. The resource indexes of PRS 1, PRS 2 and PRS 3 are the same, so only the resource index of one PRS needs to be indicated.

[0246] For another example, the information element structure of the measurement result 1 can be as follows:

[0247]

[0248]

[0249]

[0250] For example, the NR-DL-TDOA-MeasElement-r16 is the measurement result 1, the NR-DL-PRS-ResourceSetID-r16 in the above underlined part is the index of the PRS resource set 1, and the NR-DL-PRS-ResourceID-r16 in the above underlined part is the resource index of PRS 1. The additionalPRS-ResourceSetIdList-r17 in the above underlined part includes the index of the PRS resource set 2 and the index of the PRS resource set 3. The associatedPRS-ResourceIdList-r17 in the above underlined part includes the resource index of PRS 2 and the resource index of PRS 3.

[0251] In another possible implementation, the terminal device can also not carry the index of the PRS resource set in which the PRSs having the association relationship are located and / or the resource index of the PRS having the association relationship in the measurement result. For example, if the second configuration information is used to implicitly indicate that the PRS resources in the multiple PRS resource sets have the association relationship by configuring the multiple PRS resource set indexes to be the same, the terminal device can not carry the resource index of the PRS resource set in which the PRSs having the association relationship are located and / or the resource index of the PRS having the association relationship in the measurement result. For example, the measurement result 1 in the above only needs to carry the index of the PRS resource set 1 and the resource index of PRS 1, and after receiving the measurement result 1, the positioning management device can determine which PRSs have the association relationship with PRS 1, and further determine which PRSs are used to jointly measure the measurement result 1.

[0252] In a possible implementation, the positioning management device can determine the reporting delay of the measurement result, so as to notify the terminal device to report the measurement result at a suitable time based on the reporting delay of the measurement result. The reporting delay of the measurement result refers to the total processing time required by the terminal device from starting the joint measurement on the PRSs having the association relationship to obtaining the measurement result.

[0253] For example, PRS 1 is a PRS on frequency point 1, PRS 2 is a PRS on frequency point 2, and PRS 3 is a PRS on frequency point 3. PRS 1, PRS 2, and PRS 3 have the association relationship. It is assumed that the terminal device can jointly process the PRSs on multiple frequency points for 4 ms every 160 ms. The terminal device needs to process PRS 1, PRS 2, and PRS 3 for a total of 8 ms, and the positioning management device determines that the total processing time required by the terminal device from starting the joint measurement on PRS 1, PRS 2, and PRS 3 to obtaining the measurement result is 160 ms*2=320 ms. That is, the positioning management device determines that the reporting delay of the measurement result 1 is 320 ms. The positioning management device can notify the terminal device to report the measurement result after 320 ms.

[0254] Optionally, the terminal device can also calculate the reporting delay of the measurement result, and report the measurement result to the positioning management device based on the reporting delay of the measurement result.

[0255] See Figure 10 , Figure 10 A structural schematic diagram of a communication apparatus of an embodiment of the present application is shown. Figure 10 The communication apparatus shown can be used to implement part or all of the functions of the terminal device in the association method of the PRS described above. The apparatus can be a terminal device, a device in a terminal device, or a device that can be used in matching with a terminal device. The communication apparatus can also be a chip system. Figure 10 The communication apparatus shown can include a communication unit 1001 and a processing unit 1002. The processing unit 1002 is configured to perform data processing. The communication unit 1001 integrates a receiving unit and a sending unit. The communication unit 1001 can also be referred to as a transceiver unit. Alternatively, the communication unit 1001 can also be split into a receiving unit and a sending unit. The processing unit 1002 and the communication unit 1001 are the same in the following, and will not be described again. Specifically:

[0256] The communication unit 1001 is configured to receive second configuration information sent by the positioning management device, the second configuration information indicating an association relationship between PRSs on at least two frequency points; the communication unit 1001 is also configured to measure the PRSs having the association relationship; wherein the PRSs having the association relationship share an antenna port, or the PRSs having the association relationship have a phase difference.

[0257] In a possible implementation, the second configuration information also indicates that the PRSs having the association relationship share an antenna port, or the PRSs having the association relationship have a phase difference.

[0258] In a possible implementation, in the process of measuring the PRSs having the association relationship by the terminal device, the phase difference between the PRSs having the association relationship is a fixed value.

[0259] In a possible implementation, the second configuration information indicates the association relationship between the PRSs on at least two frequency points in the following manner: the second configuration information indicates an association relationship between PRS resources on at least two frequency points.

[0260] In a possible implementation, the second configuration information includes configuration information of multiple frequency points, the configuration information of a frequency point including an index of the frequency point and configuration information of a PRS resource set in the frequency point, the configuration information of the PRS resource set including an index of the PRS resource set and configuration information of a PRS resource in the PRS resource set, the configuration information of the PRS resource including an index of the PRS resource;

[0261] The configuration information of the third PRS resource set further includes an index of at least one fourth PRS resource set, to indicate that the PRS resources included in the third PRS resource set and the PRS resources included in the at least one fourth PRS resource set have an association relationship, and the third PRS resource set and the at least one fourth PRS resource set are resource sets on different frequency points configured by the second configuration information; or

[0262] The index of the third PRS resource set and the index of the at least one fourth PRS resource set are configured to be the same, to indicate that the PRS resources included in the third PRS resource set and the PRS resources included in the at least one fourth PRS resource set have an association relationship, and the third PRS resource set and the at least one fourth PRS resource set are resource sets on different frequency points configured by the second configuration information; or

[0263] The configuration information of the third PRS resource further includes at least one second index information, and the second index information includes an index of a fourth PRS resource set and an index of a fourth PRS resource in the fourth PRS resource set, to indicate that the third PRS resource and the at least one fourth PRS resource have an association relationship, and the third PRS resource and the at least one fourth PRS resource are resources on different frequency points configured by the second configuration information.

[0264] In a possible implementation, the third PRS resource set and the at least one fourth PRS resource set have an association relationship, specifically: the third PRS resource in the third PRS resource set and the fourth PRS resource in the at least one fourth PRS resource set have an association relationship; and the third PRS resource and the fourth PRS resource satisfy one or more of the following conditions:

[0265] The third PRS resource and the fourth PRS resource have the same PRS resource index;

[0266] The third PRS resource and the fourth PRS resource occupy the same symbol; or

[0267] The third PRS resource and the fourth PRS resource have a quasi co-location (QCL) relationship.

[0268] In a possible implementation, the communication unit 1001 is further configured to send capability information to the positioning management device, and the capability information is used to indicate one or more of the following information: a maximum aggregated bandwidth supported by the terminal device, a maximum number of aggregated frequency points supported by the terminal device, whether the terminal device supports joint measurement on PRS on multiple frequency points or the capability of the terminal device for joint processing of PRS on multiple frequency points; wherein the aggregated bandwidth is the bandwidth of PRS groups having an association relationship.

[0269] In a possible implementation, the reporting granularity of the capability information is reporting on a frequency band by frequency band basis, or reporting on a frequency band group by frequency band basis, or reporting on a frequency band subset by frequency band basis within a frequency band group.

[0270] In a possible implementation, the communication unit 1001 measures the positioning reference signal on the associated PRS in the following manner:

[0271] When the associated PRS meets a first condition, the associated PRS is measured. The first condition includes any one or more of the following conditions:

[0272] The subcarrier spacing of PRSs with associated relationships is the same;

[0273] The cyclic prefix type of the associated PRSs is the same;

[0274] The PRSs with an associated relationship occupy the same symbol, or the PRSs with an associated relationship overlap in time domain, or the PRSs with an associated relationship partially overlap in time domain;

[0275] The total bandwidth of the associated PRSs is less than the maximum aggregate bandwidth supported by the terminal device; or

[0276] The number of associated PRS frequencies is less than the maximum number of associated frequencies supported by the terminal device.

[0277] In one possible implementation, the processing unit 1002 is used to determine a PRS combination with a maximum bandwidth supported by the terminal device from the PRSs with an associated relationship when the total bandwidth of the PRSs with an associated relationship is greater than the maximum aggregate bandwidth supported by the terminal device, or the number of frequency points where the PRSs with an associated relationship are located is greater than the maximum number of associated frequency points supported by the terminal device; the communication unit 1001 is further used to measure the PRS combination.

[0278] In one possible implementation, the communication unit 1001 is also used to send a measurement result to the positioning management device; wherein the measurement result is obtained by the terminal device measuring the PRS with an associated relationship, and the measurement result includes the index of the resource set where the PRS with an associated relationship is located and / or the resource index of the PRS with an associated relationship.

[0279] See Figure 10 , Figure 10 A schematic structural diagram of a communication device according to an embodiment of the present application is shown. Figure 10The communication device shown can be used to realize part or all of the functions of the positioning management device in the above-mentioned PRS association method. The device can be a positioning management device, a device in a positioning management device, or a device that can be matched with a positioning management device. Among them, the communication device can also be a chip system. Figure 10 The communication device shown can include a communication unit 1001 and a processing unit 1002. Among them:

[0280] The communication unit 1001 is configured to receive first configuration information sent by a network device, the first configuration information indicating an association relationship between PRSs on at least two frequency points; and the communication unit 1001 is further configured to send second configuration information to a terminal device, the second configuration information indicating an association relationship between PRSs on at least two frequency points; wherein PRSs with an association relationship share an antenna port, or PRSs with an association relationship have a phase difference.

[0281] In a possible implementation, the first configuration information and the second configuration information further indicate that PRSs with an association relationship share an antenna port, or PRSs with an association relationship have a phase difference.

[0282] In a possible implementation, in a process in which the terminal device measures PRSs with an association relationship, the phase difference between PRSs with an association relationship is a fixed value.

[0283] In a possible implementation, the first configuration information indicates an association relationship between PRS resources on at least two frequency points; and the second configuration information indicates an association relationship between PRS resources on at least two frequency points.

[0284] In a possible implementation, the first configuration information includes configuration information of multiple frequency points, the configuration information of a frequency point including an index of the frequency point and configuration information of a PRS resource set in the frequency point, the configuration information of the PRS resource set including an index of the PRS resource set and configuration information of a PRS resource in the PRS resource set, the configuration information of the PRS resource including an index of the PRS resource;

[0285] The configuration information of the first PRS resource set further includes an index of at least one second PRS resource set, to indicate that PRS resources included in the first PRS resource set and PRS resources included in the at least one second PRS resource set have an association relationship, the first PRS resource set and the at least one second PRS resource set being resource sets on different frequency points configured by the first configuration information; or,

[0286] The index of the first PRS resource set and the index of the at least one second PRS resource set are configured to be the same, to indicate that the PRS resources included in the first PRS resource set and the PRS resources included in the at least one second PRS resource set have an association relationship, and the first PRS resource set and the at least one second PRS resource set are resource sets on different frequency points configured by the first configuration information; or

[0287] The configuration information of the first PRS resource further includes at least one first index information, the first index information includes an index of a second PRS resource set and an index of a second PRS resource in the second PRS resource set, to indicate that the first PRS resource and the at least one second PRS resource have an association relationship, and the first PRS resource and the at least one second PRS resource are resources on different frequency points configured by the first configuration information.

[0288] In a possible implementation, the first PRS resource set and the at least one second PRS resource set have an association relationship, specifically, a first PRS resource in the first PRS resource set and a second PRS resource in the at least one second PRS resource set have an association relationship; and the first PRS resource and the second PRS resource satisfy one or more of the following conditions:

[0289] The first PRS resource and the second PRS resource have the same PRS resource index;

[0290] The first PRS resource and the second PRS resource occupy the same symbol; or

[0291] The first PRS resource and the second PRS resource have a quasi co-location (QCL) relationship.

[0292] In a possible implementation, the second configuration information includes configuration information of multiple frequency points, the configuration information of a frequency point includes an index of the frequency point and configuration information of a PRS resource set in the frequency point, the configuration information of the PRS resource set includes an index of the PRS resource set and configuration information of a PRS resource in the PRS resource set, and the configuration information of the PRS resource includes an index of the PRS resource;

[0293] The configuration information of the third PRS resource set further includes an index of at least one fourth PRS resource set, to indicate that the PRS resources included in the third PRS resource set and the PRS resources included in the at least one fourth PRS resource set have an association relationship, and the third PRS resource set and the at least one fourth PRS resource set are resource sets on different frequency points configured by the second configuration information; or

[0294] The index of the third PRS resource set and the index of the at least one fourth PRS resource set are configured to be the same, to indicate that the PRS resources included in the third PRS resource set and the PRS resources included in the at least one fourth PRS resource set have an association relationship, and the third PRS resource set and the at least one fourth PRS resource set are resource sets on different frequency points configured by the second configuration information; or

[0295] The configuration information of the third PRS resource further includes at least one second index information, the second index information includes an index of a fourth PRS resource set and an index of a fourth PRS resource in the fourth PRS resource set, to indicate that the third PRS resource and the at least one fourth PRS resource have an association relationship, and the third PRS resource and the at least one fourth PRS resource are resources on different frequency points configured by the second configuration information.

[0296] In a possible implementation, the third PRS resource set and the at least one fourth PRS resource set have an association relationship, specifically, the third PRS resource in the third PRS resource set and the fourth PRS resource in the at least one fourth PRS resource set have an association relationship; and the third PRS resource and the fourth PRS resource satisfy one or more of the following conditions:

[0297] The third PRS resource and the fourth PRS resource have the same PRS resource index;

[0298] The third PRS resource and the fourth PRS resource occupy the same symbol; or,

[0299] The third PRS resource and the fourth PRS resource have a quasi co-location (QCL) relationship.

[0300] In a possible implementation, the communication unit 1001 is further configured to receive capability information reported by the terminal device, the capability information indicating one or more of the following information: a maximum aggregation bandwidth supported by the terminal device, a maximum number of aggregation frequency points supported by the terminal device, whether the terminal device supports joint measurement on PRSs on multiple frequency points or a capability of the terminal device for joint processing on PRSs on multiple frequency points; wherein the aggregation bandwidth is a bandwidth formed by PRSs having an association relationship.

[0301] In a possible implementation, the reporting granularity of the capability information is reporting per frequency band, or reporting per frequency band group, or reporting per frequency band in a frequency band group, or reporting per frequency band subset in a frequency band group.

[0302] In a possible implementation, the communication unit 1001 is further configured to receive a measurement result sent by the terminal device, wherein the measurement result is obtained by the terminal device performing measurement on the PRSs having the association relationship, and the measurement result includes resource indexes of the resource set in which the PRSs having the association relationship are located and / or resource indexes of the PRSs having the association relationship.

[0303] Please refer to Figure 10 , Figure 10 A structural schematic diagram of a communication apparatus is shown. Figure 10 The communication apparatus shown can be used to implement part or all of the functions of the network device in the PRS association method described above. The apparatus can be a network device, a device in a network device, or a device that can be used in matching with a network device. The communication apparatus can also be a chip system. Figure 10 The communication apparatus shown can include a communication unit 1001 and a processing unit 1002. Wherein:

[0304] The communication unit 1001 is configured to send first configuration information to a positioning management device, the first configuration information indicating an association relationship between PRSs on at least two frequency points; and the communication unit 1001 is further configured to send PRSs having the association relationship; wherein the PRSs having the association relationship share an antenna port or the PRSs having the association relationship have a phase difference.

[0305] In a possible implementation, the first configuration information further indicates that the PRSs having the association relationship share an antenna port or the PRSs having the association relationship have a phase difference.

[0306] In a possible implementation, during the process in which the terminal device performs measurement on the PRSs having the association relationship, the phase difference between the PRSs having the association relationship is a fixed value.

[0307] In a possible implementation, the first configuration information indicates the association relationship between the PRSs on at least two frequency points in the following manner: the first configuration information indicates an association relationship between PRS resources on at least two frequency points.

[0308] In a possible implementation, the first configuration information includes configuration information of multiple frequency points, the configuration information of a frequency point includes an index of the frequency point and configuration information of a PRS resource set in the frequency point, the configuration information of the PRS resource set includes an index of the PRS resource set and configuration information of a PRS resource in the PRS resource set, and the configuration information of the PRS resource includes an index of the PRS resource.

[0309] The configuration information of the first PRS resource set further includes an index of at least one second PRS resource set, to indicate that the PRS resources included in the first PRS resource set and the PRS resources included in the at least one second PRS resource set are associated with each other, and the first PRS resource set and the at least one second PRS resource set are resource sets at different frequency points configured by the first configuration information; or

[0310] The index of the first PRS resource set and the index of the at least one second PRS resource set are configured to be the same, so as to indicate that the PRS resources included in the first PRS resource set and the PRS resources included in the at least one second PRS resource set are associated with each other, and the first PRS resource set and the at least one second PRS resource set are resource sets on different frequency points configured by the first configuration information; or

[0311] The configuration information of the first PRS resource also includes at least one first index information, where the first index information includes an index of the second PRS resource set and an index of the second PRS resource in the second PRS resource set, to indicate that the first PRS resource is associated with the at least one second PRS resource, and the first PRS resource and the at least one second PRS resource are resources at different frequency points configured by the first configuration information.

[0312] In one possible implementation, the PRS resources included in the first PRS resource set and the PRS resources included in at least one second PRS resource set have an associated relationship, specifically: the first PRS resource in the first PRS resource set and the second PRS resource in at least one second PRS resource set have an associated relationship; the first PRS resource and the second PRS resource meet one or more of the following conditions: the first PRS resource and the second PRS resource have the same PRS resource index; the first PRS resource and the second PRS resource occupy the same symbol; or, the first PRS resource and the second PRS resource have a quasi-co-location QCL relationship.

[0313] like Figure 10 The figure shows a communication device 110 provided in an embodiment of the present application, which is used to implement the above Figure 11a or Figure 4 The device can be a terminal device or a device for a terminal device. The device for a terminal device can be a chip system or a chip in the terminal device. The chip system can be composed of a chip or can also include a chip and other discrete devices. Alternatively, the communication device 110 is used to implement the above Figure 9 or Figure 4 The device can be a positioning management device or a device for positioning management device. The device for positioning management device can be a chip system or chip in the positioning management device. Alternatively, the communication device 110 is used to implement the above Figure 9 orFigure 4 The device can be a network device or a device for a network device. The device for a network device can be a chip system or chip within the network device. The chip system can be composed of a chip alone or include a chip and other discrete components.

[0314] The communication device 110 includes at least one processor 1120, which is used to implement the data processing function of the terminal device or positioning management device or network device in the method provided in the embodiment of the present application. The device 110 may also include a communication interface 1110, which is used to implement the transceiver operation of the terminal device or positioning management device or network device in the method provided in the embodiment of the present application. In the embodiment of the present application, the communication interface can be a transceiver, circuit, bus, module or other type of communication interface, which is used to communicate with other devices through a transmission medium. For example, the communication interface 1110 is used for the device in the device 110 to communicate with other devices. The processor 1120 uses the communication interface 1110 to send and receive data, and is used to implement the above method embodiment. Figure 9 or Figure 4 The method described.

[0315] The device 110 may also include at least one memory 1130 for storing program instructions and / or data. The memory 1130 is coupled to the processor 1120. The coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units, or modules, which may be electrical, mechanical, or other forms, and is used for information exchange between the devices, units, or modules. The processor 1120 may operate in conjunction with the memory 1130. The processor 1120 may execute program instructions stored in the memory 1130. At least one of the at least one memory may be included in the processor.

[0316] The specific connection medium between the communication interface 1110, the processor 1120 and the memory 1130 is not limited in the embodiment of the present application. Figure 9 The memory 1130, the processor 1120 and the communication interface 1110 are connected via a bus 1140. Figure 11a The connections between the other components are shown in bold lines, which are only for illustration and are not intended to be limiting. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, Figure 11a Only one thick line is used in the diagram, but this does not mean that there is only one bus or one type of bus.

[0317] When the device 110 is specifically a device for a terminal device or a positioning management device or a network device, for example, when the device 110 is specifically a chip or a chip system, the communication interface 1110 may output or receive a baseband signal. When the device 110 is specifically a terminal device or a positioning management device or a network device, the communication interface 1110 may output or receive a radio frequency signal. In the embodiment of the present application, the processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or execute the various methods, operations, and logic block diagrams disclosed in the embodiment of the present application. A general-purpose processor may be a microprocessor or any conventional processor, etc. The operation of the method disclosed in conjunction with the embodiment of the present application may be directly embodied as being executed by a hardware processor, or may be executed by a combination of hardware and software modules in the processor.

[0318] As an example, Figure 11a This is a schematic diagram of the structure of another terminal device 1100 provided in an embodiment of the present application. The terminal device can perform the operations performed by the terminal device in the above method embodiment.

[0319] For ease of explanation, Figure 11b Only the main components of the terminal device are shown. Figure 11b As shown, the terminal device 1100 includes a processor, a memory, a radio frequency circuit, an antenna, and an input / output device. The processor is mainly used to process the communication protocol and communication data, and to control the entire terminal device, execute software programs, and process the data of software programs, such as to support the terminal device to execute Figure 11b or Figure 4 The process described. The memory is mainly used to store software programs and data. The radio frequency circuit is mainly used to convert baseband signals into radio frequency signals and process radio frequency signals. The antenna is mainly used to transmit and receive radio frequency signals in the form of electromagnetic waves. The terminal device 1100 may also include input and output devices, such as a touch screen, a display screen, a keyboard, etc., which are mainly used to receive data input by the user and output data to the user. It should be noted that some types of terminal devices may not have input and output devices.

[0320] When the terminal device is powered on, the processor can read the software program in the storage unit, interpret and execute the software program, and process the data of the software program. When data needs to be sent wirelessly, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal, and sends the radio frequency signal in the form of electromagnetic waves through the antenna. When data is sent to the terminal device, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor. The processor converts the baseband signal into data and processes the data.

[0321] Those skilled in the art can understand that, for the convenience of description, Figure 9 Only one memory and processor are shown. In actual terminal devices, there can be multiple processors and memories. The memory can also be referred to as a storage medium or a storage device, and the present application embodiments do not limit this.

[0322] As an optional implementation, the processor can include a baseband processor and a central processing unit (CPU), the baseband processor is mainly used for processing communication protocols and communication data, and the CPU is mainly used for controlling the entire terminal device, executing software programs, and processing data of the software programs. Optionally, the processor can also be a network processor (NP) or a combination of CPU and NP. The processor can further include a hardware chip. The hardware chip can be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The PLD can be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a generic array logic (GAL), or any combination thereof. The memory can include a volatile memory such as a random-access memory (RAM), and can also include a non-volatile memory such as a flash memory, a hard disk drive (HDD), or a solid-state drive (SSD), and can also include a combination of the above types of memories.

[0323] For example, in the embodiments of the present application, as shown in Figure 11b Figure 11b

[0324] The communication unit 1101 can also be referred to as a transceiver, a transceiver, a transceiver device, a transceiver unit, etc., and is configured to implement the transceiving function. Optionally, the devices in the communication unit 1101 for implementing the receiving function can be regarded as a receiving unit, and the devices in the communication unit 1101 for implementing the transmitting function can be regarded as a transmitting unit, that is, the communication unit 1101 includes a receiving unit and a transmitting unit. For example, the receiving unit can also be referred to as a receiver, a receiver, a receiving circuit, etc., and the transmitting unit can be referred to as a transmitter, a transmitter, or a transmitting circuit, etc.

[0325] In some embodiments, the communication unit 1101 and the processing unit 1102 can be integrated into one device, or can be separated into different devices. In addition, the processor and the memory can be integrated into one device, or separated into different devices.

[0326] Wherein, the communication unit 1101 can be configured to perform the transceiving operation of the terminal device in the above-mentioned method embodiments. The processing unit 1102 can be configured to perform the data processing operation of the terminal device in the above-mentioned method embodiments.

[0327] The embodiments of the present application also provide a computer readable storage medium, which stores instructions, when the instructions are run on the processor, the method flow of the above-mentioned method embodiments is realized.

[0328] The embodiments of the present application also provide a computer program product, when the computer program product is run on the processor, the method flow of the above-mentioned method embodiments is realized.

[0329] It should be noted that for the above-mentioned method embodiments, in order to simply describe, they are all described as a series of action combinations, but those skilled in the art should know that the present application is not limited to the action order described, because according to the present application, some operations can be performed in other order or simultaneously. Secondly, those skilled in the art should know that the embodiments described in the specification all belong to preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

[0330] ​​​​​​​​​​​​​​​​​The descriptions of the various embodiments provided in the present application can be referred to each other, and the descriptions of the various embodiments are each focused on. The parts not described in detail in a certain embodiment can be referred to the related descriptions of other embodiments. For the convenience and brevity of description, for example, the functions of the various devices and the operations performed by the devices provided in the embodiments of the present application can be referred to the related descriptions of the method embodiments of the present application, and the various method embodiments can also be referred to, combined or cited each other.

[0331] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for associating a positioning reference signal (PRS), characterized in that: The method comprises: The terminal device receives second configuration information sent by the positioning management device, where the second configuration information indicates an association relationship between PRS resource sets on at least two frequency points; the PRS resource set has an association relationship, which is used to indicate that the PRSs in the PRS resource set have an association relationship; The terminal device measures the PRS having the associated relationship; The antenna ports of the PRSs with the associated relationship are the same antenna port or the PRSs with the associated relationship have a phase difference.

2. The method according to claim 1, characterized in that The second configuration information further indicates that the antenna ports of the PRSs having the associated relationship are the same antenna port, or that the PRSs having the associated relationship have a phase difference.

3. The method according to claim 1, characterized in that The antenna ports of the PRSs having the associated relationship are the same antenna port for indicating that a channel carried by one antenna port on one symbol can be inferred from a channel carried by another antenna port on another symbol.

4. The method according to claim 1, wherein During the process of the terminal device measuring the PRSs having the associated relationship, the phase difference between the PRSs having the associated relationship is a fixed value.

5. The method according to any one of claims 1 to 4, characterized in that The method further comprises: The terminal device sends capability information to the positioning management device, where the capability information is used to indicate one or more of the following information: the maximum aggregate bandwidth supported by the terminal device, the maximum number of aggregate frequencies supported by the terminal device, whether the terminal device supports joint measurement of PRSs on multiple frequencies, or the ability of the terminal device to jointly process PRSs on multiple frequencies; wherein the aggregate bandwidth is the bandwidth composed of PRSs with an associated relationship.

6. The method according to claim 5, characterized in that The reporting granularity of the capability information is reporting on a frequency band by frequency band basis, or reporting on a frequency band group by frequency band basis, or reporting on a frequency band subset by frequency band basis within a frequency band group.

7. The method according to any one of claims 1 to 4, characterized in that The terminal device measures the PRS having the associated relationship, including: When the PRS with the associated relationship meets a first condition, the terminal device measures the PRS with the associated relationship, where the first condition includes any one or more of the following conditions: The subcarrier spacing of the PRSs having the associated relationship is the same; The PRSs having the associated relationship have the same cyclic prefix type; The PRSs with the associated relationship occupy the same symbol, or the PRSs with the associated relationship overlap in time domain, or the PRSs with the associated relationship partially overlap in time domain; The total bandwidth of the PRSs having the associated relationship is less than the maximum aggregate bandwidth supported by the terminal device; or The number of frequency points where the PRSs having the associated relationship are located is less than the maximum number of associated frequency points supported by the terminal device.

8. The method according to claim 7, characterized in that The method further comprises: If the total bandwidth of the PRSs with the associated relationship is greater than the maximum aggregate bandwidth supported by the terminal device, or the number of frequency points where the PRSs with the associated relationship are located is greater than the maximum number of associated frequency points supported by the terminal device, the terminal device determines a PRS combination with the maximum bandwidth supported by the terminal device capability from the PRSs with the associated relationship; The terminal device measures the PRS combination.

9. The method according to any one of claims 1 to 4, characterized in that The method further comprises: The terminal device sends the measurement result to the positioning management device; The measurement result is obtained by the terminal device measuring the PRS with the association relationship, and the measurement result includes the index of the resource set where the PRS with the association relationship is located and / or the resource index of the PRS with the association relationship.

10. A method for associating a positioning reference signal (PRS), characterized in that: The method comprises: The positioning management device receives first configuration information sent by the network device, where the first configuration information indicates an association relationship between PRS resource sets on at least two frequency points; the PRS resource set having an association relationship is used to indicate that the PRSs in the PRS resource set have an association relationship; The positioning management device sends second configuration information to the terminal device, where the second configuration information indicates an association relationship between PRS resource sets on at least two frequency points; The antenna ports of the PRSs with the associated relationship are the same antenna port or the PRSs with the associated relationship have a phase difference.

11. The method according to claim 10, characterized in that The first configuration information and the second configuration information further indicate that the antenna ports of the PRSs having the associated relationship are the same antenna port, or that the PRSs having the associated relationship have a phase difference.

12. The method according to claim 10, characterized in that The antenna ports of the PRSs having the associated relationship are the same antenna port for indicating that a channel carried by one antenna port on one symbol can be inferred from a channel carried by another antenna port on another symbol.

13. The method according to claim 10, characterized in that During the process of the terminal device measuring the PRSs having the associated relationship, the phase difference between the PRSs having the associated relationship is a fixed value.

14. The method according to any one of claims 10 to 13, characterized in that The method further comprises: The positioning management device receives capability information reported by the terminal device, where the capability information indicates one or more of the following information: the maximum aggregate bandwidth supported by the terminal device, the maximum number of aggregate frequencies supported by the terminal device, whether the terminal device supports joint measurement of PRSs on multiple frequencies or the ability of the terminal device to jointly process PRSs on multiple frequencies; wherein the aggregate bandwidth is the bandwidth composed of PRSs with an associated relationship.

15. The method according to claim 14, characterized in that The reporting granularity of the capability information is reporting on a frequency band by frequency band basis, or reporting on a frequency band group by frequency band basis, or reporting on a frequency band subset by frequency band basis within a frequency band group.

16. The method according to any one of claims 10 to 13, characterized in that The method further comprises: The positioning management device receives the measurement result sent by the terminal device; The measurement result is obtained by the terminal device measuring the PRS with the association relationship, and the measurement result includes the index of the resource set where the PRS with the association relationship is located and / or the resource index of the PRS with the association relationship.

17. A method for associating a positioning reference signal (PRS), characterized in that: The method comprises: The network device sends first configuration information to the positioning management device, where the first configuration information indicates an association relationship between PRS resource sets on at least two frequency points; the PRS resource set having an association relationship is used to indicate that the PRSs in the PRS resource set have an association relationship; The network device sends the PRS having the association relationship; The antenna ports of the PRSs with the associated relationship are the same antenna port or the PRSs with the associated relationship have a phase difference.

18. The method according to claim 17, characterized in that The first configuration information further indicates that the antenna ports of the PRSs having the associated relationship are the same antenna port, or that the PRSs having the associated relationship have a phase difference.

19. The method according to claim 17, wherein The antenna ports of the PRSs having the associated relationship are the same antenna port for indicating that a channel carried by one antenna port on one symbol can be inferred from a channel carried by another antenna port on another symbol.

20. The method according to claim 17, wherein During the process of the terminal device measuring the PRSs having the associated relationship, the phase difference between the PRSs having the associated relationship is a fixed value.

21. A communication device, characterized in that: The communication device includes a unit for implementing the method described in any one of claims 1 to 9, or includes a unit for implementing the method described in any one of claims 10 to 16, or includes a unit for implementing the method described in any one of claims 17 to 20.

22. A communication device comprising a processor, wherein when the processor executes a computer program in a memory, the method according to any one of claims 1 to 9 is executed, or the method according to any one of claims 10 to 16 is executed, or the method according to any one of claims 17 to 20 is executed.

23. A communication device, characterized in that: including processor and memory; The memory is used to store computer-executable instructions; The processor is used to execute the computer-executable instructions stored in the memory to cause the communication device to perform the method according to any one of claims 1 to 9, or to cause the communication device to perform the method according to any one of claims 10 to 16, or to cause the communication device to perform the method according to any one of claims 17 to 20.

24. A communication device, characterized in that: Includes processor, memory and transceiver; The transceiver is used to receive a channel or a signal, or to send a channel or a signal; The memory is used to store computer programs; The processor is configured to call the computer program from the memory to execute the method according to any one of claims 1 to 9, or to call the computer program from the memory to execute the method according to any one of claims 10 to 16, or to call the computer program from the memory to execute the method according to any one of claims 17 to 20.

25. A communication device, characterized in that: including a processor and a communication interface; The communication interface is used to communicate with other communication devices; the processor is used to run a computer program so that the communication device implements the method described in any one of claims 1 to 9, or enables the communication device to implement the method described in any one of claims 10 to 16, or enables the communication device to implement the method described in any one of claims 17 to 20.

26. A computer-readable storage medium, characterized in that The computer storage medium stores computer-readable instructions. When the computer-readable instructions are executed on the communication device, the communication device executes the method described in any one of claims 1 to 9, or the communication device executes the method described in any one of claims 10 to 16, or the communication device executes the method described in any one of claims 17 to 20.

27. A computer program product comprising a computer program, characterized in that When the computer program is executed, the method according to any one of claims 1 to 9, the method according to any one of claims 10 to 16, or the method according to any one of claims 17 to 20 is implemented.

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