Resource allocation methods and communication devices

Abstract

This application provides a resource configuration method and a communication device. According to the method provided, a network device receives first reference SRS resource information from a positioning management device, and configures a second SRS resource for the terminal device to be positioned, which has at least one overlapping time-domain unit with the first SRS resource, based on the first reference SRS resource information. The first SRS resource is related to the first reference SRS resource information. Therefore, when locating the terminal device to be positioned by measuring the SRS signal transmitted by the reference terminal device on the first SRS resource and the SRS signal transmitted by the terminal device to be positioned, the phase drift measured by the network device in the time domain of the first and second SRS resources is the same or similar, thereby helping to eliminate or reduce the error introduced by phase drift and improve positioning accuracy.

Description

Technical Field

[0001] This application relates to the field of communications, and more specifically, to a resource allocation method and a communication device. Background Technology

[0002] Positioning is a crucial function in mobile communication systems, requiring the system to provide users' location information in real time. Fifth-generation (5G) communication systems demand high-precision positioning, requiring outdoor positioning errors of less than 10 meters and indoor positioning errors of less than 1 meter.

[0003] Existing positioning technologies mainly include uplink positioning, downlink positioning, and uplink-downlink positioning. In uplink positioning, the base station measures the sounding reference signal (SRS) sent by the user equipment (UE). In downlink positioning, the UE measures the positioning reference signal (PRS) sent by the base station. Uplink-downlink positioning requires both the UE to measure the PRS sent by the base station and the base station to measure the SRS sent by the UE.

[0004] In actual positioning, the phase drift of the phase measured by the base station in the time domain is different, which brings positioning errors and cannot meet the positioning requirements of 5G. Summary of the Invention

[0005] This application provides a resource configuration method and a communication device. According to the method provided in this application, a network device can configure a second sounding reference signal (SRS) resource for a terminal device to be located, so as to improve the positioning accuracy when locating the terminal device to be located based on the SRS signal sent by the terminal device to be located on the second SRS resource.

[0006] Firstly, a resource allocation method is provided, which can be executed by a network device or by a component of the network device (such as a chip or circuit). There is no limitation on this. For ease of description, the following explanation will take execution by a network device as an example.

[0007] The method includes: a network device receiving first reference SRS resource information from a location management device; the network device configuring second SRS resources for a terminal device to be located based on the first reference SRS resource information.

[0008] Based on the above technical solution, the network device configures a second SRS resource for the terminal device to be located according to the first reference SRS resource information from the positioning management device. This facilitates the network device configuring a second SRS resource for the terminal device to be located that overlaps with the first SRS resource in the time domain by at least one time unit, where the first SRS resource is related to the first reference SRS resource information. Furthermore, when locating the terminal device to be located by measuring the SRS signal transmitted by the reference terminal device on the first SRS resource and the SRS signal transmitted by the terminal device to be located on the second SRS resource, the phase drifts measured by the network device in the time domain of the first and second SRS resources are the same or similar, thereby helping to eliminate or reduce the error introduced by the phase drift and improve positioning accuracy.

[0009] For example, the first SRS resource related to the first reference SRS resource information is used by the first reference terminal device to transmit the first SRS signal, and the second SRS resource is used by the terminal device to be located to transmit the second SRS signal. The first SRS signal and the second SRS signal are used to locate the terminal device to be located.

[0010] For example, the first reference SRS resource information includes one or more of the following: starting symbol position, number of occupied symbols, transmission period and offset, transmission comb and offset, cyclic shift, frequency domain position and offset, and frequency hopping position.

[0011] For example, the first reference SRS resource information includes at least: the starting symbol position, the number of occupied symbols, the transmission period, and the offset.

[0012] Based on the above technical solution, the temporal location of the first SRS resource can be determined according to the first reference SRS resource information, which is beneficial for the network device to configure a second SRS resource with at least one overlapping temporal unit with the first SRS resource for the terminal device to be located.

[0013] For example, the first reference SRS resource information includes the identification information of the first SRS resource.

[0014] Based on the above technical solution, the first SRS resource can be determined according to the first reference SRS resource information, which is beneficial for the network device to configure the second SRS resource with at least one time domain unit overlapping with the first SRS resource for the terminal device to be located.

[0015] For example, there is at least one overlapping time domain unit between the second SRS resource and the first SRS resource, and the first reference SRS resource information is related to the first SRS resource.

[0016] The existence of at least one overlapping time-domain unit between the second SRS resource and the first SRS resource includes the following cases: no time-domain unit offset between the second SRS resource and the first SRS resource; and a time-domain unit offset between the second SRS resource and the first SRS resource. Wherein, no time-domain unit offset between the second SRS resource and the first SRS resource means that the start symbol position of the first SRS resource is the same as the start symbol position of the second SRS resource, and / or, the end symbol position of the first SRS resource is the same as the end symbol position of the second SRS resource. The existence of a time-domain unit offset between the second SRS resource and the first SRS resource refers to the offset between the start symbol position of the first SRS resource and the start symbol position of the second SRS resource, or the offset between the end symbol position of the first SRS resource and the end symbol position of the second SRS resource.

[0017] Secondly, a resource allocation method is provided. This method can be executed by a network device, or by a component of the network device (such as a chip or circuit). There is no limitation on this. For ease of description, the following explanation will take execution by a network device as an example.

[0018] The method includes: a network device receiving first reference SRS resource information from a location management device; the network device configuring a second SRS resource for a terminal device to be located based on the first reference SRS resource information, wherein there is at least one overlapping time domain unit between the second SRS resource and the first SRS resource, and the first reference SRS resource information is related to the first SRS resource.

[0019] Based on the above technical solution, the network device configures a second SRS resource for the terminal device to be located based on the first reference SRS resource information from the positioning management device. There is at least one overlapping time domain unit between the second SRS resource and the first SRS resource. Therefore, when the terminal device to be located is located by measuring the SRS signal sent by the reference terminal device on the first SRS resource and the SRS signal sent by the terminal device to be located on the second SRS resource, the phase drift of the phase measured by the network device in the time domain of the first SRS resource and the second SRS resource is the same or similar, which helps to eliminate or reduce the error introduced by the phase drift and improve the positioning accuracy.

[0020] For example, the first SRS resource related to the first reference SRS resource information is used by the first reference terminal device to transmit the first SRS signal, and the second SRS resource is used by the terminal device to be located to transmit the second SRS signal. The first SRS signal and the second SRS signal are used to locate the terminal device to be located.

[0021] The existence of at least one overlapping time-domain unit between the second SRS resource and the first SRS resource includes the following cases: there is no time-domain unit offset between the second SRS resource and the first SRS resource, or there is a time-domain unit offset between the second SRS resource and the first SRS resource.

[0022] For example, the first reference SRS resource information includes one or more of the following: starting symbol position, number of occupied symbols, transmission period and offset, transmission comb and offset, cyclic shift, frequency domain position and offset, and frequency hopping position.

[0023] For example, the first reference SRS resource information includes at least: the starting symbol position, the number of occupied symbols, the transmission period, and the offset.

[0024] Based on the above technical solution, the temporal location of the first SRS resource can be determined according to the first reference SRS resource information, which is beneficial for the network device to configure a second SRS resource with at least one overlapping temporal unit with the first SRS resource for the terminal device to be located.

[0025] For example, the first reference SRS resource information includes the identification information of the first SRS resource.

[0026] Based on the above technical solution, the first SRS resource can be determined according to the first reference SRS resource information, which is conducive to enabling the network device to configure the second SRS resource with at least one time domain unit overlapping with the first SRS resource for the terminal device to be located.

[0027] Thirdly, a resource allocation method is provided, which can be executed by a network device or by a component of the network device (such as a chip or circuit). There is no limitation on this. For ease of description, the following explanation will take execution by a network device as an example.

[0028] The method includes: a network device receiving first reference SRS resource information from a positioning management device, the first reference SRS resource information including one or more of the following: starting symbol position, number of occupied symbols, transmission period and offset, transmission comb and offset, cyclic shift, frequency domain position and offset, or frequency hopping configuration; the network device configuring second SRS resources for the terminal device to be located based on the first reference SRS resource information.

[0029] Based on the above technical solution, the network device configures a second SRS resource for the terminal device to be located according to the first reference SRS resource information from the positioning management device. This facilitates the network device configuring a second SRS resource for the terminal device to be located that overlaps with the first SRS resource in the time domain by at least one time unit, where the first SRS resource is related to the first reference SRS resource information. Furthermore, when locating the terminal device to be located by measuring the SRS signal transmitted by the reference terminal device on the first SRS resource and the SRS signal transmitted by the terminal device to be located on the second SRS resource, the phase drifts measured by the network device in the time domain of the first and second SRS resources are the same or similar, thereby helping to eliminate or reduce the error introduced by the phase drift and improve positioning accuracy.

[0030] For example, the first SRS resource related to the first reference SRS resource information is used by the first reference terminal device to transmit the first SRS signal, and the second SRS resource is used by the terminal device to be located to transmit the second SRS signal. The first SRS signal and the second SRS signal are used to locate the terminal device to be located.

[0031] For example, the first reference SRS resource information includes at least: the starting symbol position, the number of occupied symbols, the transmission period, and the offset.

[0032] Based on the above technical solution, the temporal location of the first SRS resource can be determined according to the first reference SRS resource information, which is beneficial for the network device to configure a second SRS resource with at least one overlapping temporal unit with the first SRS resource for the terminal device to be located.

[0033] For example, there is at least one overlapping time domain unit between the first SRS resource and the second SRS resource, and the first reference SRS resource information is related to the first SRS resource.

[0034] The existence of at least one overlapping time-domain unit between the second SRS resource and the first SRS resource includes the following cases: there is no time-domain unit offset between the second SRS resource and the first SRS resource, or there is a time-domain unit offset between the second SRS resource and the first SRS resource.

[0035] In conjunction with the first to third aspects, in some implementations of the first to third aspects, the first reference SRS resource information is associated with the SRS resources of at least one reference terminal device.

[0036] Based on the above technical solution, when the first reference SRS resource information is related to the SRS resources of at least one reference terminal device, it is beneficial for the network device to configure a second SRS resource for the terminal device to be located, which has at least one overlapping time-domain unit with the SRS resources of at least one reference terminal device. Furthermore, when locating the terminal device by measuring the SRS signals transmitted by at least one reference terminal device and the SRS signals transmitted by the terminal device to be located on the second SRS resource, the phase drift measured by the network device in the time domain of the SRS resources of at least one reference terminal device and the second SRS resource are the same or similar, thereby helping to eliminate or reduce the error introduced by phase drift and improve positioning accuracy.

[0037] For example, the first reference SRS resource information is related to the SRS resource of the first reference terminal device. The first reference SRS resource information is the information of the SRS resource of the first reference terminal device, or the first reference SRS resource information is the information obtained based on the SRS resource of the first reference terminal device.

[0038] For example, the first reference SRS resource information is related to the SRS resources of at least two reference terminal devices. The first reference SRS resource information is information about the SRS resources of the at least two reference terminal devices, or the first reference SRS resource information is information obtained based on the SRS resources of the at least two reference terminal devices.

[0039] In conjunction with the first to third aspects, in certain implementations of the first to third aspects, the network device receiving first reference SRS resource information from the location management device includes: the network device receiving multiple reference SRS resource information from the location management device and priority information of each reference SRS resource information among the multiple reference SRS resource information, the multiple SRS resource information including the first reference SRS resource information; the method further includes: the network device sending information about the second SRS resource to the location management device.

[0040] In conjunction with the first to third aspects, in some implementations of the first to third aspects, the method further includes: the network device receiving first indication information from the positioning management device, the first indication information being used to indicate configuring a second SRS resource that completely overlaps with the first SRS resource in the time domain for the terminal device to be positioned, or being used to indicate configuring a second SRS resource that partially overlaps with the first SRS resource in the time domain for the terminal device to be positioned, the first reference SRS resource information being related to the first SRS resource; the network device configuring the second SRS resource for the terminal device to be positioned according to the first reference SRS resource information, including: the network device configuring the second SRS resource for the terminal device to be positioned according to the first reference SRS resource information and the first indication information.

[0041] Based on the above technical solution, the network device can configure a second SRS resource for the terminal device to be located according to the first indication information. Thus, when locating the terminal device to be located by measuring the SRS signal sent by the reference terminal device on the first SRS resource and the SRS signal sent by the terminal device to be located on the second SRS resource, the phase drift of the phase measured by the network device in the time domain of the first SRS resource and the second SRS resource is the same or similar, which helps to eliminate or reduce the error introduced by the phase drift and improve the positioning accuracy.

[0042] In conjunction with the first to third aspects, in some implementations of the first to third aspects, the method further includes: the network device receiving second indication information from the positioning management device, the second indication information being used to indicate an offset between the first SRS resource and the second SRS resource, the first reference SRS resource information being related to the first SRS resource; the network device configuring the second SRS resource for the terminal device to be located based on the first reference SRS resource information, including: the network device configuring the second SRS resource for the terminal device to be located based on the first reference SRS resource information and the second indication information.

[0043] Based on the above technical solution, the network device can configure a second SRS resource for the terminal device to be located according to the second indication information. Thus, when locating the terminal device to be located by measuring the SRS signal sent by the reference terminal device on the first SRS resource and the SRS signal sent by the terminal device to be located on the second SRS resource, the phase drift of the phase measured by the network device in the time domain of the first SRS resource and the second SRS resource is the same or similar, which helps to eliminate or reduce the error introduced by the phase drift and improve the positioning accuracy.

[0044] In conjunction with the first to third aspects, in some implementations of the first to third aspects, the method further includes: the network device receiving third indication information from the location management device, the third indication information being used to indicate that the first SRS resource is a reference resource, and the first reference SRS resource information being associated with the first SRS resource.

[0045] Based on the above technical solution, the network device can use the first SRS resource as a reference resource according to the third instruction information, and configure the second SRS resource for the terminal device to be located according to the first SRS resource.

[0046] In conjunction with the first to third aspects, in some implementations of the first to third aspects, the network device receiving first reference SRS resource information from the location management device includes: the network device receiving reference resource information from the location management device, the reference resource information including the first reference SRS resource information.

[0047] Based on the above technical solution, the network device can use the first SRS resource determined according to the first reference resource information as a reference resource, and configure the second SRS resource for the terminal device to be located according to the first SRS resource.

[0048] Fourthly, a resource allocation method is provided. This method can be executed by a positioning management device, or by a component of the positioning management device (such as a chip or circuit). There is no limitation on this. For ease of description, the following explanation will take execution by the positioning management device as an example.

[0049] The method includes: a positioning management device sending first reference SRS resource information to a network device, the first reference SRS resource information being used by the network device to configure a second SRS resource for a terminal device to be located; and the positioning management device receiving information about the second SRS resource from the network device.

[0050] The beneficial effects of the method shown in the fourth aspect and its possible implementations can be referred to the beneficial effects in the first aspect and its possible implementations.

[0051] For example, the first SRS resource related to the first reference SRS resource information is used by the first reference terminal device to transmit the first SRS signal, and the second SRS resource is used by the terminal device to be located to transmit the second SRS signal. The first SRS signal and the second SRS signal are used to locate the terminal device to be located.

[0052] For example, the first reference SRS resource information includes one or more of the following: starting symbol position, number of occupied symbols, transmission period and offset, transmission comb and offset, cyclic shift, frequency domain position and offset, or frequency hopping configuration.

[0053] For example, the first reference SRS resource information includes at least: starting symbol position, number of occupied symbols, transmission period, and offset.

[0054] For example, the first reference SRS resource information includes the identification information of the first SRS resource.

[0055] For example, there is at least one overlapping time domain unit between the second SRS resource and the first SRS resource, and the first reference SRS resource information is related to the first SRS resource.

[0056] The existence of at least one overlapping time-domain unit between the second SRS resource and the first SRS resource includes the following cases: there is no time-domain unit offset between the second SRS resource and the first SRS resource, or there is a time-domain unit offset between the second SRS resource and the first SRS resource.

[0057] Fifthly, a resource allocation method is provided. This method can be executed by a positioning management device, or by a component of the positioning management device (such as a chip or circuit). There is no limitation on this. For ease of description, the following explanation will take execution by the positioning management device as an example.

[0058] The method includes: a positioning management device sending first reference SRS resource information to a network device, the first reference SRS resource information being used by the network device to configure a second SRS resource for a terminal device to be located; the positioning management device receiving information about the second SRS resource from the network device, the second SRS resource having at least one overlapping time domain unit with the first SRS resource, and the first reference SRS resource information being related to the first SRS resource.

[0059] The beneficial effects of the method shown in the fifth aspect and its possible implementations can be referred to the beneficial effects in the second aspect and its possible implementations.

[0060] For example, the first SRS resource related to the first reference SRS resource information is used by the first reference terminal device to transmit the first SRS signal, and the second SRS resource is used by the terminal device to be located to transmit the second SRS signal. The first SRS signal and the second SRS signal are used to locate the terminal device to be located.

[0061] The existence of at least one overlapping time-domain unit between the second SRS resource and the first SRS resource includes the following cases: there is no time-domain unit offset between the second SRS resource and the first SRS resource, or there is a time-domain unit offset between the second SRS resource and the first SRS resource.

[0062] For example, the first reference SRS resource information includes one or more of the following: starting symbol position, number of occupied symbols, transmission period and offset, transmission comb and offset, cyclic shift, frequency domain position and offset, and frequency hopping position.

[0063] For example, the first reference SRS resource information includes at least: the starting symbol position, the number of occupied symbols, the transmission period, and the offset.

[0064] For example, the first reference SRS resource information includes the identification information of the first SRS resource.

[0065] Sixthly, a resource allocation method is provided, which can be executed by a positioning management device or by a component of the positioning management device (such as a chip or circuit). There is no limitation on this method. For ease of description, the following description will take execution by the positioning management device as an example.

[0066] The method includes: a positioning management device sending first reference SRS resource information to a network device, the first reference SRS resource information being used by the network device to configure second SRS resources for a terminal device to be located, the first reference SRS resource information including one or more of the following: starting symbol position, number of occupied symbols, transmission period and offset, transmission comb and offset, cyclic shift, frequency domain position and offset, frequency hopping position; the positioning management device receiving the second SRS resource information from the network device.

[0067] The beneficial effects of the method shown in the sixth aspect and its possible implementations can be referred to the beneficial effects in the third aspect and its possible implementations.

[0068] For example, the first SRS resource related to the first reference SRS resource information is used by the first reference terminal device to transmit the first SRS signal, and the second SRS resource is used by the terminal device to be located to transmit the second SRS signal. The first SRS signal and the second SRS signal are used to locate the terminal device to be located.

[0069] For example, the first reference SRS resource information includes at least: the starting symbol position, the number of occupied symbols, the transmission period, and the offset.

[0070] For example, there is at least one overlapping time domain unit between the first SRS resource and the second SRS resource, and the first reference SRS resource information is related to the first SRS resource.

[0071] The existence of at least one overlapping time-domain unit between the second SRS resource and the first SRS resource includes the following cases: there is no time-domain unit offset between the second SRS resource and the first SRS resource, or there is a time-domain unit offset between the second SRS resource and the first SRS resource.

[0072] In conjunction with aspects four through six, in some implementations of aspects four through six, the first reference SRS resource information is associated with the SRS resources of at least one reference terminal device.

[0073] For example, the first reference SRS resource information is related to the SRS resource of the first reference terminal device. The first reference SRS resource information is the information of the SRS resource of the first reference terminal device, or the first reference SRS resource information is the information obtained based on the SRS resource of the first reference terminal device.

[0074] For example, the first reference SRS resource information is related to the SRS resources of at least two reference terminal devices. The first reference SRS resource information is information about the SRS resources of the at least two reference terminal devices, or the first reference SRS resource information is information obtained based on the SRS resources of the at least two reference terminal devices.

[0075] In conjunction with aspects four through six, in some implementations of aspects four through six, the location management device sends first reference SRS resource information to the network device, including: the location management device sends multiple reference SRS resource information and priority information of each reference SRS resource information among the multiple reference SRS resource information, the multiple reference SRS resource information including the first reference SRS resource information.

[0076] In conjunction with aspects four through six, in some implementations of aspects four through six, the method further includes: the positioning management device sending first indication information to the network device, the first indication information being used to indicate that a second SRS resource that completely overlaps with the first SRS resource in the time domain is configured for the terminal device to be positioned, or being used to indicate that a second SRS resource that partially overlaps with the first SRS resource in the time domain is configured for the terminal device to be positioned, the first reference SRS resource information being related to the first SRS resource.

[0077] In conjunction with aspects four through six, in some implementations of aspects four through six, the method further includes: the positioning management device sending second indication information to the network device, the second indication information being used to indicate the offset between the first SRS resource and the second SRS resource, the first reference SRS resource information being related to the first SRS resource.

[0078] In conjunction with aspects four through six, in some implementations of aspects four through six, the method further includes: the positioning management device sending third indication information to the network device, the third indication information being used to indicate that the first SRS resource is a reference resource, and the first reference SRS resource information being related to the first SRS resource.

[0079] In conjunction with aspects four through six, in some implementations of aspects four through six, the location management device sends first reference SRS resource information to the network device, including: the location management device sends reference resource information to the network device, the reference resource information including the first reference SRS resource information.

[0080] Seventhly, a positioning method is provided, which can be executed by a network device or by a component of the network device (such as a chip or circuit). There is no limitation on this method. For ease of description, the following description will take execution by a network device as an example.

[0081] The method includes: a network device receiving a first SRS signal from a reference terminal device on a first SRS resource; the network device receiving a second SRS signal from a terminal device to be located on a second SRS resource, wherein there is at least one overlapping time-domain unit between the second SRS resource and the first SRS resource; and the network device sending location information to a location management device, the location information being obtained by measuring the first SRS signal and the second SRS signal, the location information being used to locate the terminal device to be located.

[0082] Based on the above technical solution, since there is at least one overlapping time domain unit between the first SRS resource and the second SRS resource, when the terminal device to be positioned is located by measuring the first SRS signal and the second SRS signal, the phase drift of the phase measured by the network device in the time domain of the first SRS resource and the second SRS resource is the same or similar, which helps to eliminate or reduce the error introduced by the phase drift and improve the positioning accuracy.

[0083] For example, the existence of at least one overlapping time-domain unit between the second SRS resource and the first SRS resource can include the following two cases: (1) there is no time-domain unit offset between the second SRS resource and the first SRS resource; (2) there is a time-domain unit offset between the second SRS resource and the first SRS resource. Wherein, the offset is the offset between the start symbol position of the first SRS resource and the start symbol position of the second SRS resource, or the offset is the offset between the end symbol position of the first SRS resource and the end symbol position of the second SRS resource.

[0084] For example, the time-domain unit is a symbol.

[0085] In conjunction with the seventh aspect, in some implementations of the seventh aspect, the network device is a serving network device for the terminal device to be located, and the method further includes: the network device receiving first reference SRS resource information from the management device to be located, the first reference SRS resource information being related to the first SRS resource; and the network device configuring the second SRS resource for the terminal device to be located based on the first reference SRS resource information.

[0086] Based on the above technical solution, after the serving network device of the terminal device to be located receives the first reference SRS resource information, it is beneficial to enable the network device to configure a second SRS resource for the terminal device to be located that has at least one time domain unit overlapping with the first SRS resource.

[0087] For example, the first reference SRS resource information includes one or more of the following: starting symbol position, number of occupied symbols, transmission period and offset, transmission comb and offset, cyclic shift, frequency domain position and offset, and frequency hopping position.

[0088] For example, the first reference SRS resource information includes at least: the starting symbol position, the number of occupied symbols, the transmission period, and the offset.

[0089] Based on the above technical solution, the temporal location of the first SRS resource can be determined according to the first reference SRS resource information, which is beneficial for the network device to configure a second SRS resource with at least one overlapping temporal unit with the first SRS resource for the terminal device to be located.

[0090] For example, the first reference SRS resource information includes the identification information of the first SRS resource.

[0091] Based on the above technical solution, the first SRS resource can be determined according to the first reference SRS resource information, which is beneficial for the network device to configure the second SRS resource with at least one time domain unit overlapping with the first SRS resource for the terminal device to be located.

[0092] In conjunction with the seventh aspect, in certain implementations of the seventh aspect, the network device receiving first reference SRS resource information from the location management device includes: the network device receiving multiple reference SRS resource information from the location management device and priority information of each reference SRS resource information among the multiple reference SRS resource information, the multiple reference SRS resource information including the first reference SRS resource information; the method further includes: the network device sending information about the second SRS resource to the location management device.

[0093] For example, the information of the second SRS resource includes resource configuration information and / or identification information of the second SRS resource. For instance, the resource configuration information of the second SRS resource includes one or more of the following: starting symbol position, number of occupied symbols, transmission period and offset, transmission comb and offset, cyclic shift, frequency domain position and offset, and frequency hopping position. The identification information of the second SRS resource is used to identify the second SRS resource.

[0094] In conjunction with the seventh aspect, in some implementations of the seventh aspect, the method further includes: the network device receiving first indication information from the positioning management device, the first indication information being used to indicate that a second SRS resource that completely overlaps with the first SRS resource in the time domain is configured for the terminal device to be positioned, or to indicate that a second SRS resource that partially overlaps with the first SRS resource in the time domain is configured for the terminal device to be positioned.

[0095] Based on the above technical solution, the network device can configure the second SRS resource for the terminal device to be located according to the first indication information. Thus, when the terminal device to be located is located by measuring the first SRS signal and the second SRS signal, the phase drift of the phase measured by the network device in the time domain of the first SRS resource and the second SRS resource is the same or similar, which helps to eliminate or reduce the error introduced by the phase drift and improve the positioning accuracy.

[0096] In conjunction with the seventh aspect, in some implementations of the seventh aspect, the network device is a serving network device for the terminal device to be located and the reference terminal device. The method further includes: the network device receiving first indication information from the positioning management device, the first indication information being used to indicate configuring a second SRS resource that completely overlaps with the first SRS resource in the time domain for the terminal device to be located, or being used to indicate configuring a second SRS resource that partially overlaps with the first SRS resource in the time domain for the terminal device to be located; the network device configuring the second SRS resource for the terminal device to be located and configuring the first SRS resource for the reference terminal device according to the first indication information.

[0097] Based on the above technical solution, the network device can configure a second SRS resource for the terminal device to be located and a first SRS resource for the reference terminal device according to the first indication information. Thus, when the terminal device to be located is located by measuring the first SRS signal and the second SRS signal, the phase drift of the phase measured by the network device in the time domain of the first SRS resource and the second SRS resource is the same or similar, which helps to eliminate or reduce the error introduced by the phase drift and improve the positioning accuracy.

[0098] In conjunction with the seventh aspect, in some implementations of the seventh aspect, the method further includes: the network device receiving second indication information from the location management device, the second indication information indicating an offset between the first SRS resource and the second SRS resource.

[0099] In conjunction with the seventh aspect, in some implementations of the seventh aspect, the network device is a serving network device for the terminal device to be located and the reference terminal device, and the method further includes: the network device receiving second indication information from the positioning management device, the second indication information indicating an offset between the first SRS resource and the second SRS resource; the network device configuring the second SRS resource for the terminal device to be located and configuring the first SRS resource for the reference terminal device according to the second indication information.

[0100] Based on the above technical solution, the network device can configure a second SRS resource for the terminal device to be located and a first SRS resource for the reference terminal device according to the second indication information. Thus, when the terminal device to be located is located by measuring the first SRS signal and the second SRS signal, the phase drift of the phase measured by the network device in the time domain of the first SRS resource and the second SRS resource is the same or similar, which helps to eliminate or reduce the error introduced by the phase drift and improve the positioning accuracy.

[0101] In conjunction with the seventh aspect, in some implementations of the seventh aspect, the network device is the serving network device of the terminal device to be located, and the method further includes: the network device sending information about the second SRS resource to the location management device.

[0102] Based on the above technical solution, after the positioning management device receives the information of the second SRS resource, it can send the information of the second SRS resource to the service network device of the reference terminal device, so that the service network device of the reference terminal device can configure the first SRS resource for the reference terminal device according to the information of the second SRS resource.

[0103] In conjunction with the seventh aspect, in some implementations of the seventh aspect, the network device is a serving network device for the reference terminal device, and the method further includes: the network device receiving information about the second SRS resource from the positioning management device; and the network device configuring the first SRS resource for the reference terminal device based on the information about the second SRS resource.

[0104] Based on the above technical solution, after the serving network device of the reference terminal device receives the information of the second SRS resource, the serving network device of the reference terminal device can configure the first SRS resource for the reference terminal device according to the information of the second SRS resource.

[0105] Eighthly, a positioning method is provided, which can be executed by a positioning management device or by a component of the positioning management device (e.g., a chip or circuit). There is no limitation on this method. For ease of description, the following description will take the method executed by the positioning management device as an example.

[0106] The method includes: a positioning management device receiving positioning information from a network device, the positioning information being obtained by measuring a first SRS signal and a second SRS signal, the first SRS signal being an SRS signal received by the network device on a first SRS resource from a reference terminal device, the second SRS signal being an SRS signal received by the network device on a second SRS resource from a terminal device to be positioned, the second SRS resource and the first SRS resource having at least one overlapping time domain unit; the positioning management device locating the terminal device to be positioned based on the positioning information.

[0107] Based on the above technical solution, since there is at least one overlapping time domain unit between the first SRS resource and the second SRS resource, when the terminal device to be positioned is located by measuring the first SRS signal and the second SRS signal, the phase drift of the phase measured by the network device in the time domain of the first SRS resource and the second SRS resource is the same or similar, which helps to eliminate or reduce the error introduced by the phase drift and improve the positioning accuracy.

[0108] For example, the existence of at least one overlapping time-domain unit between the second SRS resource and the first SRS resource can include the following two cases: (1) there is no offset of time-domain unit between the second SRS resource and the first SRS resource; (2) there is an offset of one time-domain unit between the second SRS resource and the first SRS resource.

[0109] For example, the time-domain unit is a symbol.

[0110] In conjunction with the eighth aspect, in some implementations of the eighth aspect, the network device is the serving network device of the terminal device to be located, and the method further includes: the positioning management device sending first reference SRS resource information to the network device, the first reference SRS resource information being related to the first SRS resource.

[0111] Based on the above technical solution, after the serving network device of the terminal device to be located receives the first reference SRS resource information, it is beneficial to configure a second SRS resource for the terminal device to be located that has at least one time domain unit overlapping with the first SRS resource.

[0112] For example, the first reference SRS resource information includes one or more of the following: starting symbol position, number of occupied symbols, transmission period and offset, transmission comb and offset, cyclic shift, frequency domain position and offset, and frequency hopping position.

[0113] For example, the first reference SRS resource information includes at least: the starting symbol position, the number of occupied symbols, the transmission period, and the offset.

[0114] Based on the above technical solution, the temporal location of the first SRS resource can be determined according to the first reference SRS resource information, which is beneficial for the network device to configure a second SRS resource with at least one overlapping temporal unit with the first SRS resource for the terminal device to be located.

[0115] For example, the first reference SRS resource information includes the identification information of the first SRS resource.

[0116] Based on the above technical solution, the first SRS resource can be determined according to the first reference SRS resource information, which is beneficial for the network device to configure the second SRS resource with at least one time domain unit overlapping with the first SRS resource for the terminal device to be located.

[0117] In conjunction with the eighth aspect, in some implementations of the eighth aspect, the location management device sends first reference SRS resource information to the network device, including: the location management device sending multiple reference SRS resource information and priority information of each reference SRS resource information among the multiple reference SRS resource information, the multiple reference SRS resource information including the first reference SRS resource information; the method further includes: the location management device receiving information about the second SRS resource from the network device.

[0118] In conjunction with the eighth aspect, in some implementations of the eighth aspect, the network device is a serving network device for the terminal device to be located, and the method further includes: the positioning management device sending first indication information to the network device, the first indication information being used to indicate that a second SRS resource that completely overlaps with the first SRS resource in the time domain is configured for the terminal device to be located, or being used to indicate that a second SRS resource that partially overlaps with the first SRS resource in the time domain is configured for the terminal device to be located.

[0119] Based on the above technical solution, the service network device of the terminal device to be located can configure the second SRS resource for the terminal device to be located according to the first instruction information. Thus, when the terminal device to be located is located by measuring the first SRS signal and the second SRS signal, the phase drift of the phase measured by the service network device of the terminal device to be located in the time domain of the first SRS resource and the second SRS resource is the same or similar, which helps to eliminate or reduce the error introduced by the phase drift and improve the positioning accuracy.

[0120] In conjunction with the eighth aspect, in some implementations of the eighth aspect, the network device is the serving network device of the terminal device to be located, and the method further includes: the positioning management device sending second indication information to the network device, the second indication information being used to indicate the offset between the first SRS resource and the second SRS resource.

[0121] Based on the above technical solution, the service network device of the terminal device to be located can configure the second SRS resource for the terminal device to be located according to the second indication information. Thus, when the terminal device to be located is located by measuring the first SRS signal and the second SRS signal, the phase drift of the phase measured by the service network device of the terminal device to be located in the time domain of the first SRS resource and the second SRS resource is the same or similar, which helps to eliminate or reduce the error introduced by the phase drift and improve the positioning accuracy.

[0122] In conjunction with the eighth aspect, in some implementations of the eighth aspect, the network device is a serving network device for the terminal device to be located, and the method further includes: the positioning management device receiving information about the second SRS resource from the network device; the positioning management device sending the information about the second SRS resource to the serving network device of the reference terminal device, wherein the information about the second SRS resource is used to configure the first SRS resource for the reference terminal device.

[0123] Based on the above technical solution, the positioning management device sends the information of the second SRS resource to the service network device of the reference terminal device, so that the service network device of the reference terminal device can configure the first SRS resource for the reference terminal device according to the information of the second SRS resource.

[0124] Ninthly, a positioning method is provided, which can be executed by the terminal device to be positioned, or by a component of the terminal device to be positioned (such as a chip or circuit), without limitation. For ease of description, the following description takes execution by the terminal device to be positioned as an example.

[0125] The method includes: a terminal device to be located receiving resource configuration information of a second SRS resource from a network device, wherein there is at least one overlapping time domain unit between the first SRS resource and the second SRS resource, and the first SRS resource is used as a reference for the terminal device to transmit a first SRS signal; and the terminal device to be located sending a second SRS signal to the network device on the second SRS resource.

[0126] Based on the above technical solution, the terminal device to be located sends a second SRS signal on the second SRS resource. Since there is at least one overlapping time domain unit between the first SRS resource and the second SRS resource, when the terminal device to be located is located by measuring the first SRS signal and the second SRS signal, the phase drift of the phase measured by the network device in the time domain of the first SRS resource and the second SRS resource is the same or similar, which helps to eliminate or reduce the error introduced by the phase drift and improve the positioning accuracy.

[0127] For example, the existence of at least one overlapping time-domain unit between the second SRS resource and the first SRS resource can include the following two cases: (1) there is no offset of time-domain unit between the second SRS resource and the first SRS resource; (2) there is an offset of one time-domain unit between the second SRS resource and the first SRS resource.

[0128] For example, the time-domain unit is a symbol.

[0129] In a tenth aspect, a communication device is provided, comprising a transceiver unit and a processing unit, wherein the transceiver unit is configured to receive first reference SRS resource information from a positioning management device; and the processing unit is configured to configure second SRS resources for a terminal device to be located based on the first reference SRS resource information.

[0130] In conjunction with aspect ten, in some implementations of aspect ten, the first reference SRS resource information includes one or more of the following: starting symbol position, number of occupied symbols, transmission period and offset, transmission comb and offset, cyclic shift, frequency domain position and offset, and frequency hopping position.

[0131] In conjunction with aspect ten, in some implementations of aspect ten, the first reference SRS resource information includes at least: the starting symbol position, the number of occupied symbols, the transmission period, and the offset.

[0132] In conjunction with the tenth aspect, in some implementations of the tenth aspect, the first reference SRS resource information includes the identification information of the first SRS resource.

[0133] In conjunction with the tenth aspect, in some implementations of the tenth aspect, there is at least one overlapping time domain unit between the second SRS resource and the first SRS resource, and the first reference SRS resource information is related to the first SRS resource.

[0134] Eleventhly, a communication device is provided, the communication device including a transceiver unit and a processing unit, the transceiver unit being configured to receive first reference SRS resource information from a positioning management device; the processing unit being configured to configure a second SRS resource for a terminal device to be located according to the first reference SRS resource information, wherein there is at least one overlapping time domain unit between the second SRS resource and the first SRS resource, and the first reference SRS resource information is related to the first SRS resource.

[0135] In conjunction with the eleventh aspect, in some implementations of the eleventh aspect, the first reference SRS resource information includes one or more of the following: starting symbol position, number of occupied symbols, transmission period and offset, transmission comb and offset, cyclic shift, frequency domain position and offset, and frequency hopping position.

[0136] In conjunction with aspect eleven, in some implementations of aspect eleven, the first reference SRS resource information includes at least: the starting symbol position, the number of occupied symbols, the transmission period, and the offset.

[0137] In conjunction with the eleventh aspect, in some implementations of the eleventh aspect, the first reference SRS resource information includes the identification information of the first SRS resource.

[0138] In a twelfth aspect, a communication device is provided, comprising a transceiver unit and a processing unit. The transceiver unit is configured to receive first reference SRS resource information from a positioning management device. The first reference SRS resource information includes one or more of the following: starting symbol position, number of occupied symbols, transmission period and offset, transmission comb and offset, cyclic shift, frequency domain position and offset, or frequency hopping configuration. The processing unit is configured to configure second SRS resources for a terminal device to be located based on the first reference SRS resource information.

[0139] In conjunction with the twelfth aspect, in some implementations of the twelfth aspect, the first reference SRS resource information includes at least: the starting symbol position, the number of occupied symbols, the transmission period, and the offset.

[0140] In conjunction with the twelfth aspect, in some implementations of the twelfth aspect, there is at least one overlapping time-domain unit between the first SRS resource and the second SRS resource, and the first reference SRS resource information is related to the first SRS resource.

[0141] In conjunction with aspects ten to twelfth, in some implementations of aspects ten to twelfth, there is no time-domain unit offset between the second SRS resource and the first SRS resource, or there is a time-domain unit offset between the second SRS resource and the first SRS resource.

[0142] In conjunction with aspects ten to twelfth, in some implementations of aspects ten to twelfth, the offset is an offset between the start symbol position of the first SRS resource and the start symbol position of the second SRS resource, or the offset is an offset between the end symbol position of the first SRS resource and the end symbol position of the second SRS resource.

[0143] In conjunction with aspects ten through twelfth, in certain implementations of aspects ten through twelfth, the first reference SRS resource information is associated with the SRS resource of at least one reference terminal device.

[0144] In conjunction with aspects ten to twelfth, in some implementations of aspects ten to twelfth, the first reference SRS resource information is related to the SRS resource of the first reference terminal device, and the first reference SRS resource information is information about the SRS resource of the first reference terminal device, or the first reference SRS resource information is information obtained based on the SRS resource of the first reference terminal device.

[0145] In conjunction with aspects ten to twelfth, in some implementations of aspects ten to twelfth, the first reference SRS resource information is related to the SRS resources of at least two reference terminal devices, and the first reference SRS resource information is information about the SRS resources of the at least two reference terminal devices, or the first reference SRS resource information is information obtained based on the SRS resources of the at least two reference terminal devices.

[0146] In conjunction with aspects ten to twelfth, in certain implementations of aspects ten to twelfth, the transceiver unit is specifically configured to receive multiple reference SRS resource information from the positioning management device and priority information of each reference SRS resource information among the multiple reference SRS resource information, the multiple reference SRS resource information including the first reference SRS resource information; the transceiver unit is also configured to send information of the second SRS resource to the positioning management device.

[0147] In conjunction with aspects ten to twelfth, in some implementations of aspects ten to twelfth, the transceiver unit is further configured to receive first indication information from the positioning management device, the first indication information being used to indicate the configuration of a second SRS resource that completely overlaps with the first SRS resource in the time domain for the terminal device to be positioned, or to indicate the configuration of a second SRS resource that partially overlaps with the first SRS resource in the time domain for the terminal device to be positioned, the first reference SRS resource information being related to the first SRS resource; the processing unit is specifically configured to configure the second SRS resource for the terminal device to be positioned according to the first reference SRS resource information and the first indication information.

[0148] In conjunction with aspects ten to twelfth, in some implementations of aspects ten to twelfth, the transceiver unit is further configured to receive second indication information from the positioning management device, the second indication information being used to indicate the offset between the first SRS resource and the second SRS resource, the first reference SRS resource information being related to the first SRS resource; the processing unit is specifically configured to configure the second SRS resource for the terminal device to be positioned according to the first reference SRS resource information and the second indication information.

[0149] In conjunction with aspects ten to twelfth, in some implementations of aspects ten to twelfth, the transceiver unit is further configured to receive third indication information from the positioning management device, the third indication information being used to indicate that the first SRS resource is a reference resource, and the first reference SRS resource information being associated with the first SRS resource.

[0150] In conjunction with aspects ten to twelfth, in certain implementations of aspects ten to twelfth, the transceiver unit is specifically configured to receive reference resource information from the positioning management device, the reference resource information including the first reference SRS resource information.

[0151] In a thirteenth aspect, a communication device is provided, the communication device including a transceiver unit, the transceiver unit being configured to send first reference SRS resource information to a network device, the first reference SRS resource information being used by the network device to configure second SRS resources for a terminal device to be located; the transceiver unit is also configured to receive information about the second SRS resources from the network device.

[0152] In conjunction with aspect thirteen, in some implementations of aspect thirteen, the first reference SRS resource information includes one or more of the following: starting symbol position, number of occupied symbols, transmission period and offset, transmission comb and offset, cyclic shift, frequency domain position and offset, or frequency hopping configuration.

[0153] In conjunction with aspect thirteen, in some implementations of aspect thirteen, the first reference SRS resource information includes at least: the starting symbol position, the number of occupied symbols, the transmission period, and the offset.

[0154] In conjunction with aspect thirteen, in some implementations of aspect thirteen, the first reference SRS resource information includes the identification information of the first SRS resource.

[0155] In conjunction with aspect thirteen, in some implementations of aspect thirteen, there is at least one overlapping time-domain unit between the second SRS resource and the first SRS resource, and the first reference SRS resource information is related to the first SRS resource.

[0156] In a fourteenth aspect, a communication apparatus is provided, the communication apparatus including a transceiver unit configured to send first reference SRS resource information to a network device, the first reference SRS resource information being used by the network device to configure a second SRS resource for a terminal device to be located; the transceiver unit is further configured to receive information about the second SRS resource from the network device, the second SRS resource having at least one overlapping time domain unit with the first SRS resource, the first reference SRS resource information being associated with the first SRS resource.

[0157] In conjunction with aspect fourteen, in some implementations of aspect fourteen, the first reference SRS resource information includes one or more of the following: starting symbol position, number of occupied symbols, transmission period and offset, transmission comb and offset, cyclic shift, frequency domain position and offset, and frequency hopping position.

[0158] In conjunction with aspect fourteen, in some implementations of aspect fourteen, the first reference SRS resource information includes at least: the starting symbol position, the number of occupied symbols, the transmission period, and the offset.

[0159] In conjunction with the fourteenth aspect, in some implementations of the fourteenth aspect, the first reference SRS resource information includes the identification information of the first SRS resource.

[0160] In a fifteenth aspect, a communication apparatus is provided, comprising a transceiver unit configured to send first reference SRS resource information to a network device, the first reference SRS resource information being used by the network device to configure second SRS resources for a terminal device to be located, the first reference SRS resource information including one or more of the following: start symbol position, number of occupied symbols, transmission period and offset, transmission comb and offset, cyclic shift, frequency domain position and offset, frequency hopping position; the transceiver unit is further configured to receive information about the second SRS resource from the network device.

[0161] In conjunction with aspect 15, in some implementations of aspect 15, the first reference SRS resource information includes at least: the starting symbol position, the number of occupied symbols, the transmission period, and the offset.

[0162] In conjunction with the fifteenth aspect, in some implementations of the fifteenth aspect, there is at least one overlapping time-domain unit between the first SRS resource and the second SRS resource, and the first reference SRS resource information is related to the first SRS resource.

[0163] In conjunction with aspects thirteen through fifteen, in some implementations of aspects thirteen through fifteen, there is no time-domain unit offset between the second SRS resource and the first SRS resource, or there is a time-domain unit offset between the second SRS resource and the first SRS resource.

[0164] In conjunction with aspects thirteen to fifteen, in some implementations of aspects thirteen to fifteen, the offset is an offset between the start symbol position of the first SRS resource and the start symbol position of the second SRS resource, or the offset is an offset between the end symbol position of the first SRS resource and the end symbol position of the second SRS resource.

[0165] In conjunction with aspects thirteen through fifteen, in certain implementations of aspects thirteen through fifteen, the first reference SRS resource information is associated with the SRS resource of at least one reference terminal device.

[0166] In conjunction with aspects thirteen to fifteen, in some implementations of aspects thirteen to fifteen, the first reference SRS resource information is related to the SRS resource of the first reference terminal device, and the first reference SRS resource information is information about the SRS resource of the first reference terminal device, or the first reference SRS resource information is information obtained based on the SRS resource of the first reference terminal device.

[0167] In conjunction with aspects 13 to 15, in some implementations of aspects 13 to 15, the first reference SRS resource information is related to the SRS resources of at least two reference terminal devices, and the first reference SRS resource information is information about the SRS resources of the at least two reference terminal devices, or the first reference SRS resource information is information obtained based on the SRS resources of the at least two reference terminal devices.

[0168] In conjunction with aspects 13 to 15, in certain implementations of aspects 13 to 15, the transceiver unit is specifically used to send to the network device a plurality of reference SRS resource information and priority information of each of the plurality of reference SRS resource information, wherein the plurality of reference SRS resource information includes the first reference SRS resource information.

[0169] In conjunction with aspects 13 to 15, in some implementations of aspects 13 to 15, the transceiver unit is further configured to send first indication information to the network device, the first indication information being used to indicate that a second SRS resource that completely overlaps with the first SRS resource in the time domain is configured for the terminal device to be located, or to indicate that a second SRS resource that partially overlaps with the first SRS resource in the time domain is configured for the terminal device to be located, the first reference SRS resource information being related to the first SRS resource.

[0170] In conjunction with aspects 13 to 15, in some implementations of aspects 13 to 15, the transceiver unit is further configured to send second indication information to the network device, the second indication information being used to indicate the offset between the first SRS resource and the second SRS resource, the first reference SRS resource information being related to the first SRS resource.

[0171] In conjunction with aspects 13 to 15, in some implementations of aspects 13 to 15, the transceiver unit is further configured to send third indication information to the network device, the third indication information being used to indicate that the first SRS resource is a reference resource, and the first reference SRS resource information is related to the first SRS resource.

[0172] In conjunction with aspects thirteen to fifteen, in certain implementations of aspects thirteen to fifteen, the transceiver unit is specifically used to send reference resource information to the network device, the reference resource information including the first reference SRS resource information.

[0173] In a sixteenth aspect, a communication apparatus is provided, comprising a transceiver unit configured to receive a first SRS signal from a reference terminal device on a first SRS resource; the transceiver unit is further configured to receive a second SRS signal from a terminal device to be located on a second SRS resource, the second SRS resource having at least one overlapping time domain unit with the first SRS resource; the transceiver unit is further configured to send location information to a location management device, the location information being obtained by measuring the first SRS signal and the second SRS signal, the location information being used to locate the terminal device to be located.

[0174] In conjunction with the sixteenth aspect, in some implementations of the sixteenth aspect, there is no time-domain unit offset between the second SRS resource and the first SRS resource, or there is a time-domain unit offset between the second SRS resource and the first SRS resource.

[0175] In conjunction with the sixteenth aspect, in some implementations of the sixteenth aspect, the offset is an offset between the start symbol position of the first SRS resource and the start symbol position of the second SRS resource, or the offset is an offset between the end symbol position of the first SRS resource and the end symbol position of the second SRS resource.

[0176] In conjunction with the sixteenth aspect, in some implementations of the sixteenth aspect, the communication device further includes a processing unit, which is further configured to receive first reference SRS resource information from a positioning management device, the first reference SRS resource information being related to the first SRS resource; the processing unit is configured to configure the second SRS resource for the terminal device to be located based on the first reference SRS resource information.

[0177] In conjunction with the sixteenth aspect, in some implementations of the sixteenth aspect, the first reference SRS resource information includes one or more of the following: starting symbol position, number of occupied symbols, transmission period and offset, transmission comb and offset, cyclic shift, frequency domain position and offset, and frequency hopping position.

[0178] In conjunction with the sixteenth aspect, in some implementations of the sixteenth aspect, the first reference SRS resource information includes at least: the starting symbol position, the number of occupied symbols, the transmission period, and the offset.

[0179] In conjunction with the sixteenth aspect, in some implementations of the sixteenth aspect, the first reference SRS resource information includes the identification information of the first SRS resource.

[0180] In conjunction with the sixteenth aspect, in some implementations of the sixteenth aspect, the transceiver unit is specifically configured to receive multiple reference SRS resource information from the positioning management device and priority information of each reference SRS resource information among the multiple reference SRS resource information, the multiple reference SRS resource information including the first reference SRS resource information; the transceiver unit is also configured to send information of the second SRS resource to the positioning management device.

[0181] In conjunction with the sixteenth aspect, in some implementations of the sixteenth aspect, the transceiver unit is further configured to receive first indication information from the positioning management device, the first indication information being configured to indicate that the second SRS resource, which is completely overlapping the first SRS resource in the time domain, is configured for the terminal device to be positioned, or to indicate that the second SRS resource, which is partially overlapping the first SRS resource in the time domain, is configured for the terminal device to be positioned.

[0182] In conjunction with the sixteenth aspect, in some implementations of the sixteenth aspect, the communication device further includes a processing unit, which is configured to receive first indication information from the positioning management device, the first indication information being configured to configure a second SRS resource that completely overlaps with the first SRS resource in the time domain for the terminal device to be positioned, or to configure a second SRS resource that partially overlaps with the first SRS resource in the time domain for the terminal device to be positioned; the processing unit is further configured to configure the second SRS resource for the terminal device to be positioned according to the first indication information, and to configure the first SRS resource for the reference terminal device.

[0183] In conjunction with the sixteenth aspect, in some implementations of the sixteenth aspect, the transceiver unit is further configured to receive second indication information from the positioning management device, the second indication information indicating the offset between the first SRS resource and the second SRS resource.

[0184] In conjunction with the sixteenth aspect, in some implementations of the sixteenth aspect, the communication device further includes a processing unit, which is further configured to receive second indication information from the positioning management device, the second indication information indicating an offset between the first SRS resource and the second SRS resource; the processing unit is configured to configure the second SRS resource for the terminal device to be located according to the second indication information, and to configure the first SRS resource for the reference terminal device.

[0185] In conjunction with the sixteenth aspect, in some implementations of the sixteenth aspect, the transceiver unit is also used to send information about the second SRS resource to the positioning management device.

[0186] In conjunction with the sixteenth aspect, in some implementations of the sixteenth aspect, the transceiver unit is further configured to receive information about the second SRS resource from the positioning management device; the network device configures the first SRS resource for the reference terminal device based on the information about the second SRS resource.

[0187] In a seventeenth aspect, a communication apparatus is provided, comprising a transceiver unit and a processing unit. The transceiver unit is configured to receive positioning information from a network device, the positioning information being obtained by measuring a first SRS signal and a second SRS signal. The first SRS signal is an SRS signal received by the network device on a first SRS resource from a reference terminal device, and the second SRS signal is an SRS signal received by the network device on a second SRS resource from a terminal device to be located. There is at least one overlapping time-domain unit between the second SRS resource and the first SRS resource. The processing unit is configured to locate the terminal device to be located based on the positioning information.

[0188] In conjunction with the seventeenth aspect, in some implementations of the seventeenth aspect, there is no time-domain unit offset between the second SRS resource and the first SRS resource, or there is a time-domain unit offset between the second SRS resource and the first SRS resource.

[0189] In conjunction with the seventeenth aspect, in some implementations of the seventeenth aspect, the offset is an offset between the start symbol position of the first SRS resource and the start symbol position of the second SRS resource, or the offset is an offset between the end symbol position of the first SRS resource and the end symbol position of the second SRS resource.

[0190] In conjunction with the seventeenth aspect, in some implementations of the seventeenth aspect, the transceiver unit is further configured to send first reference SRS resource information to the network device, the first reference SRS resource information being related to the first SRS resource.

[0191] In conjunction with the seventeenth aspect, in some implementations of the seventeenth aspect, the transceiver unit is specifically configured to send to the network device a plurality of reference SRS resource information and priority information of each of the plurality of reference SRS resource information; the transceiver unit is also configured to receive information of the second SRS resource from the network device.

[0192] In conjunction with the seventeenth aspect, in some implementations of the seventeenth aspect, the transceiver unit is further configured to send first indication information to the network device, the first indication information being configured to indicate that the second SRS resource, which is completely overlapping with the first SRS resource in the time domain, is configured for the terminal device to be located, or to indicate that the second SRS resource, which is partially overlapping with the first SRS resource in the time domain, is configured for the terminal device to be located.

[0193] In conjunction with the seventeenth aspect, in some implementations of the seventeenth aspect, the transceiver unit is further configured to send a second indication information to the network device, the second indication information being used to indicate the offset between the first SRS resource and the second SRS resource.

[0194] In conjunction with the seventeenth aspect, in some implementations of the seventeenth aspect, the network device is a serving network device for the terminal device to be located, and the transceiver unit is further configured to receive information about the second SRS resource from the network device; the transceiver unit is further configured to send the information about the second SRS resource to the serving network device of the reference terminal device, and the information about the second SRS resource is used to configure the first SRS resource for the reference terminal device.

[0195] Eighteenthly, a communication apparatus is provided, the communication apparatus including a transceiver unit, the transceiver unit being configured to receive resource configuration information of a second SRS resource from a network device, wherein there is at least one overlapping time domain unit between the first SRS resource and the second SRS resource, the first SRS resource being used for a reference terminal device to transmit a first SRS signal; the transceiver unit is further configured to transmit a second SRS signal to the network device on the second SRS resource.

[0196] In a nineteenth aspect, an apparatus is provided, including a processor. The processor is coupled to a memory and is configured to execute instructions in the memory to implement the methods of the first aspect and any possible implementation thereof, or to implement the methods of the second aspect and any possible implementation thereof, or to implement the methods of the third aspect and any possible implementation thereof, or to implement the methods of the seventh aspect and any possible implementation thereof. Optionally, the apparatus further includes a memory. Optionally, the apparatus further includes a communication interface, to which the processor is coupled.

[0197] In one implementation, the device is a network device. When the device is a network device, the communication interface can be a transceiver, or an input / output interface.

[0198] In another implementation, the device is a chip or chip system configured in a network device. When the device is a chip configured in a network device, the communication interface can be an input / output interface. The chip system includes at least one chip and may also include other circuit structures and / or discrete components.

[0199] Optionally, the transceiver can be a transceiver circuit. Optionally, the input / output interface can be an input / output circuit.

[0200] In a twentieth aspect, a communication device is provided, including a processor. The processor is coupled to a memory and can be used to execute instructions in the memory to implement the methods of the fourth aspect and any possible implementation thereof, or to implement the methods of the fifth aspect and any possible implementation thereof, or to implement the methods of the sixth aspect and any possible implementation thereof, or to implement the methods of the eighth aspect and any possible implementation thereof. Optionally, the device further includes a memory. Optionally, the device further includes a communication interface, and the processor is coupled to the communication interface.

[0201] In one implementation, the device is a location management device. When the device is a location management device, the communication interface can be a transceiver, or an input / output interface.

[0202] In another implementation, the device is a chip or chip system configured in a location management device. When the device is a chip configured in a location management device, the communication interface can be an input / output interface. The chip system includes at least one chip and may also include other circuit structures and / or discrete components.

[0203] Optionally, the transceiver can be a transceiver circuit. Optionally, the input / output interface can be an input / output circuit.

[0204] In a twenty-first aspect, a communication device is provided, including a processor. The processor is coupled to a memory and can be used to execute instructions in the memory to implement the methods of the ninth aspect and any possible implementation thereof. Optionally, the device further includes a memory. Optionally, the device further includes a communication interface, to which the processor is coupled.

[0205] In one implementation, the device is a terminal device. When the device is a terminal device, the communication interface can be a transceiver, or an input / output interface.

[0206] In another implementation, the device is a chip or chip system configured in a terminal device. When the device is a chip configured in a terminal device, the communication interface can be an input / output interface. The chip system includes at least one chip and may also include other circuit structures and / or discrete components.

[0207] Optionally, the transceiver can be a transceiver circuit. Optionally, the input / output interface can be an input / output circuit.

[0208] In a twenty-second aspect, this application provides a processor, including: an input circuit, an output circuit, and a processing circuit. The processing circuit is configured to receive signals through the input circuit and transmit signals through the output circuit, causing the processor to execute the methods described in the foregoing aspects.

[0209] In specific implementation, the processor can be a chip, the input circuit can be an input pin, the output circuit can be an output pin, and the processing circuit can be a transistor, gate circuit, flip-flop, and various logic circuits. The input signal received by the input circuit can be received and input by, for example, but not limited to, a receiver, and the signal output by the output circuit can be output to, for example, but not limited to, a transmitter and transmitted by the transmitter. Furthermore, the input circuit and the output circuit can be the same circuit, which is used as the input circuit and the output circuit at different times. This application does not limit the specific implementation of the processor and various circuits.

[0210] In a twentieth aspect, this application provides a processing apparatus including a communication interface and a processor. The communication interface is coupled to the processor. The communication interface is used for inputting and / or outputting information. The information includes at least one of instructions or data. The processor is used to execute a computer program to cause the processing apparatus to perform the methods described in the foregoing aspects.

[0211] In a twentieth aspect, this application provides a processing apparatus including a processor and a memory. The processor is configured to read instructions stored in the memory and to receive signals via a receiver and transmit signals via a transmitter, thereby causing the processing apparatus to perform the methods described in the foregoing aspects.

[0212] Optionally, there may be one or more processors. If memory is available, there may also be one or more memories.

[0213] Optionally, the memory may be integrated with the processor, or the memory may be separated from the processor.

[0214] In specific implementation, the memory can be a non-transitory memory, such as read-only memory (ROM), which can be integrated with the processor on the same chip or set on different chips. The embodiments of this application do not limit the type of memory or the way the memory and processor are set.

[0215] It should be understood that the relevant information exchange process, such as sending the first reference SRS resource information, can be a process of outputting the first reference SRS resource information from the processor, and receiving the first reference SRS resource information can be a process of inputting the received first reference SRS resource information to the processor. Specifically, the information processed can be output to the transmitter, and the input information received by the processor can come from the receiver. Here, the transmitter and receiver can be collectively referred to as a transceiver.

[0216] The apparatus in the aforementioned aspects 23 and 24 can be a chip or a chip system. The processor can be implemented in hardware or software. When implemented in hardware, the processor can be a logic circuit, an integrated circuit, etc. When implemented in software, the processor can be a general-purpose processor that reads software code stored in a memory. The memory can be integrated into the processor or located outside the processor and exist independently.

[0217] In a twentieth aspect, this application provides a computer program product comprising: a computer program (also referred to as code or instructions) that, when run, causes a computer to perform the methods described in the foregoing aspects.

[0218] In a twentieth aspect, this application provides a computer-readable storage medium storing a computer program (also referred to as code or instructions) that, when run on a computer, causes the computer to perform the methods described in the foregoing aspects.

[0219] In a twenty-seventh aspect, this application provides a system including the aforementioned network device, positioning management device, and terminal device. The network device is used to execute the methods of the first aspect and any possible implementation thereof, or to execute the methods of the second aspect and any possible implementation thereof, or to execute the methods of the third aspect and any possible implementation thereof, or to execute the methods of the seventh aspect and any possible implementation thereof. The positioning management device is used to execute the methods of the fourth aspect and any possible implementation thereof, or to execute the methods of the fifth aspect and any possible implementation thereof, or to execute the methods of the sixth aspect and any possible implementation thereof, or to execute the methods of the eighth aspect and any possible implementation thereof. The terminal device is used to execute the methods of the ninth aspect and any possible implementation thereof. Attached Figure Description

[0220] Figure 1 This is a schematic diagram of the communication architecture used in the embodiments of this application;

[0221] Figure 2 A schematic diagram of time difference of arrival (TDOA) positioning technology;

[0222] Figure 3 A schematic flowchart illustrating the positioning method provided in an embodiment of this application;

[0223] Figure 4 A schematic diagram illustrating the positioning method provided in an embodiment of this application;

[0224] Figure 5 A schematic flowchart illustrating the positioning method provided in an embodiment of this application;

[0225] Figure 6 This is a schematic diagram showing the relative positions of the first SRS resource and the second SRS resource in the time domain.

[0226] Figure 7 This is a schematic diagram showing the relative positions of the first SRS resource and the second SRS resource in the time domain.

[0227] Figure 8 This is a schematic diagram showing the relative positions of the first SRS resource and the second SRS resource in the time domain.

[0228] Figure 9 A schematic flowchart illustrating the resource allocation method provided in an embodiment of this application;

[0229] Figure 10 A schematic flowchart illustrating the resource allocation method provided in an embodiment of this application;

[0230] Figure 11 A schematic diagram of a communication device provided in an embodiment of this application;

[0231] Figure 12 A schematic block diagram of a communication device provided in another embodiment of this application;

[0232] Figure 13 This is a schematic diagram of a chip system provided in an embodiment of this application. Detailed Implementation

[0233] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0234] The technical solutions of this application can be applied to various communication systems, such as: Long Term Evolution (LTE) systems, Frequency Division Duplex (FDD) systems, Time Division Duplex (TDD) systems, Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) systems, 5th Generation (5G) systems or New Radio (NR) systems, 6th Generation (6G) systems, or future communication systems. The 5G mobile communication system described in this application includes non-standalone (NSA) 5G mobile communication systems or standalone (SA) 5G mobile communication systems. The communication system can also be a public land mobile network (PLMN), a device-to-device (D2D) communication system, a machine-to-machine (M2M) communication system, an Internet of Things (IoT) communication system, a vehicle-to-everything (V2X) communication system, an unrewed aerial vehicle (UAV) communication system, or other communication systems.

[0235] The terminal device in this application embodiment can refer to user equipment, access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device. The terminal device can also be a cellular phone, cordless phone, session initiation protocol (SIP) phone, wireless local loop (WLL) station, personal digital assistant (PDA), handheld device with wireless communication capabilities, computing device, or other processing device connected to a wireless modem, vehicle-mounted device, wearable device, terminal device in a 5G network, or terminal device in a future PLMN, etc. This application embodiment does not limit this to any particular type.

[0236] The network device in this application embodiment can be any device with wireless transceiver capabilities. This device includes, but is not limited to: evolved Node B (eNB), radio network controller (RNC), Node B (NB), home base station (e.g., home evolved NodeB, or home NodeB, HNB), baseband unit (BBU), access point (AP), wireless relay node, wireless backhaul node, transmission point (TP), or transmission and reception point (TRP) in a wireless fidelity (WiFi) system. It can also be a gNB in ​​a 5G, such as NR, or a transmission point (TRP or TP), one or a group of antenna panels (including multiple antenna panels) of a base station in a 5G system, or a network node constituting a gNB or transmission point, such as a baseband unit (BBU) or a distributed unit (DU).

[0237] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. In the description of this application, unless otherwise stated, " / " indicates that the objects before and after are in an "or" relationship. For example, A / B can represent A or B. "And / or" in this application merely describes one type of relationship between the related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone, where A and B can be singular or plural. Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can represent: a, b, c, ab, bc, ac, or abc, where a, b, and c can be single or multiple. Furthermore, to facilitate a clear description of the technical solutions in the embodiments of this application, the terms "first" and "second" are used in the embodiments of this application to distinguish identical or similar items with substantially the same function and effect. Those skilled in the art will understand that the terms "first" and "second" do not limit the quantity or execution order, and that "first" and "second" are not necessarily different. Meanwhile, in the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is being used as an example, illustration, or description. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design schemes. Specifically, the use of terms such as "exemplary" or "for example" is intended to present related concepts in a concrete manner for ease of understanding.

[0238] Furthermore, the network architecture and business scenarios described in the embodiments of this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided in the embodiments of this application. As those skilled in the art will know, with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0239] To facilitate understanding of the embodiments of this application, firstly, in conjunction with Figure 1 A schematic diagram illustrating the communication system used in the embodiments of this application is provided in detail.

[0240] like Figure 1 As shown, the communication system includes terminal equipment ( Figure 1 The UE is represented in the middle, and the radio access network ( Figure 1 The term refers to the next-generation radio access network (NG-RAN) and the core network.

[0241] The radio access network includes one or more next-generation evolved node Bs (ng-eNBs) and gNBs. An ng-eNB represents an LTE base station accessing the 5G core network, and a gNB represents a 5G base station accessing the 5G core network. Communication between ng-eNBs and gNBs, or between two ng-eNBs, or between two gNBs, occurs via the Xn interface. The Xn interface can also be called the XnAP interface.

[0242] The wireless access network is connected to the core network via the NG-C interface.

[0243] The core network includes access and mobility management functions (AMF) and location management functions (LMF), among other functions.

[0244] The Location Facilitator (LMF) is responsible for supporting different types of location services for the UE, including UE positioning and the transmission of auxiliary data to the UE. The LMF's control plane and user plane are the Enhance-Serving Mobile Location Center (E-SMLC) and the Secure User Plane Locator Platform (SLP), respectively. The LMF may interact with the RAN, such as the ng-eNB or gNB, and the UE. For example, the LMF exchanges information with the ng-eNB or gNB via New Radio Positioning Protocol Annex (NRPPa) messages, such as obtaining configuration information for the Position Reference Signal (PRS) and Sounding Reference Signal (SRS), cell timing, and cell location information. As another example, the LMF and the UE exchange UE capability information, auxiliary information, and measurement information via LTE Positioning Protocol (LPP) messages.

[0245] The AMF entity can receive location service requests related to the UE from the location service (LCS) entity of the 5G core network (5GC), or the AMF itself can initiate some location services on behalf of a specific UE and forward the location service requests to the LMF.

[0246] The terminal device connects to the radio access network via the LTE-Uu interface through the ng-eNB. The terminal device can also connect to the radio access network via the NR-Uu interface through the gNB.

[0247] It should be understood that the communication system may include one or more base stations (including ng-eNB or gNB).

[0248] It should also be understood that the communication system may include one or more terminal devices, such as one or more groups of terminal devices (e.g., ...). Figure 1 (UE set shown).

[0249] A single gNB can send data or control signaling to one or more terminal devices. Multiple gNBs can also send data or control signaling to a single terminal device simultaneously.

[0250] Figure 1 In this context, ng-eNB can also be replaced with TP.

[0251] Location tracking is a crucial function in mobile communication systems, requiring the system to provide users' location information in real time. 5G communication systems place high-precision positioning demands on this, requiring outdoor positioning errors to be less than 10 meters and indoor positioning errors to be less than 1 meter.

[0252] Existing positioning technologies mainly include uplink positioning, downlink positioning, and uplink-downlink positioning. In uplink positioning, the base station measures the SRS signal sent by the UE; in downlink positioning, the UE measures the PRS signal sent by the base station; and in uplink-downlink positioning, both the UE and the base station are required to measure the PRS signal sent by the base station.

[0253] In actual positioning, due to synchronization errors or phase errors between different UEs and / or base stations, the estimation of time delay or phase by different UEs and / or base stations will be incorrect, which will lead to positioning errors and cannot meet the positioning accuracy requirements of 5G communication systems.

[0254] In view of this, embodiments of this application provide a positioning method that, by introducing a reference device to assist positioning, eliminates positioning errors caused by synchronization errors or phase errors between different UEs and / or base stations, thereby improving positioning accuracy.

[0255] To facilitate understanding of the embodiments of this application, firstly, in conjunction with Figure 2 The time difference of arrival (TDOA) positioning technology is described.

[0256] The positioning principle of TDOA is to locate the transmitting source of a radio signal by measuring the time difference of its arrival at different monitoring stations. Specifically, the positioning management equipment calculates the time difference of the radio signal arriving at two monitoring stations, obtains the distance difference based on this time difference, and thus obtains a hyperbola. The positioning management equipment can obtain two or more hyperbolas by measuring the time differences at three or more monitoring stations. Then, the positioning management equipment locates the transmitting source based on the intersection points of these two or more hyperbolas.

[0257] Figure 2 This is a schematic diagram of TDOA positioning technology. Figure 2 The terminal device in the above-mentioned TDOA positioning technology corresponds to the transmitter that transmits radio signals. Figure 2 Base stations 1, 2, and 3 correspond to the monitoring stations that measure radio signals in the aforementioned TDOA positioning technology. That is, the terminal device sends a signal, and base stations 1, 2, and 3 respectively measure the signal sent by the terminal device.

[0258] As an example, the time difference between the signals sent by the terminal device arriving at base station 1 and base station 2 is Δt1, and the time difference between the signals sent by the terminal device arriving at base station 2 and base station 3 is Δt2. Multiplying the time difference Δt1 by the electromagnetic wave speed yields the distance difference L1, and multiplying the time difference Δt2 by the electromagnetic wave speed yields the distance difference L2. The positioning management device, based on the functional relationship between the locations of base station 1, base station 2, and distance difference L1, obtains... Figure 2 The hyperbola MN shown is obtained by the positioning management device based on the functional relationship between the positions of base station 2, base station 3, and the distance difference L2. Figure 2 The hyperbola RS is shown in the diagram. Furthermore, the positioning management device can locate the terminal device based on the intersection point of the hyperbola MN and the hyperbola RS.

[0259] exist Figure 2 In this system, one of base stations 1, 2, and 3 serves as the serving base station for the terminal device, while the other two base stations serve as neighboring base stations for the terminal device.

[0260] The serving base station of a terminal device is the base station currently providing communication connection services to the terminal device. Neighboring base stations of a terminal device are base stations adjacent to the serving base station. In other words, the serving base station is the base station of the terminal device's serving cell. Neighboring base stations are the base stations of cells adjacent to the terminal device's serving cell.

[0261] It should be noted that, in Figure 2 In this paper, three base stations are used to locate the terminal device. However, this application does not limit this to three base stations. In practical applications, more than three base stations can be used to locate the terminal device.

[0262] The following is combined Figure 3 and Figure 4 This application describes the positioning method provided in its embodiments.

[0263] Figure 3 A schematic flowchart of the positioning method provided in an embodiment of this application is shown. The various steps included in method 300 are described in detail below.

[0264] S310, The positioning management device receives positioning information, which is used to determine the first measurement TDOA and the second measurement TDOA.

[0265] For example, the location management device may be part of the core network or integrated into network devices. For instance, the location management device may be... Figure 1 The LMF shown is, or, the location management component (LMC) in the service network device of the terminal device to be located. The location management device can also be called a location center. This application does not limit the name of the location management device, and in future evolution technologies, the location management device may be given other names.

[0266] The first measured TDOA is the time difference between the arrival of the signal (e.g., SRS signal) sent by the terminal device to be located to the first positioning measurement device and the second positioning measurement device. In other words, the first measured TDOA is the difference between the first relative time of arrival (RTOA) and the second RTOA. The first RTOA is obtained by the first positioning measurement device by measuring the signal from the terminal device to be located, and the second RTOA is obtained by the second positioning measurement device by measuring the signal from the terminal device to be located.

[0267] refer to Figure 4 , Figure 4 In this context, UE is the terminal device to be located, BS1 is the first positioning measurement device, BS2 is the second positioning measurement device, and the first RTOA can be represented as: in, Indicates the first RTOA, This represents the theoretical duration of SRS signal transmission between the UE and BS1, e BS1 e represents the error introduced by the clock offset or phase offset of BS1 relative to the reference time T. UE This represents the error introduced by the clock or phase offset of the UE relative to the reference time T. It is understandable that in actual measurements, BS1 and / or the UE cannot be perfectly synchronized with the reference time T, therefore e BS1 and / or e UE Not zero.

[0268] The second RTOA can be represented as: in, Indicates the second RTOA, This represents the theoretical duration of SRS signal transmission between the UE and BS2, e BS2 This represents the error introduced by the clock or phase offset of BS2 relative to the reference time T. It is understandable that in actual measurements, BS2 and / or the UE cannot be perfectly synchronized with the reference time T, therefore... and / or e UE Not zero.

[0269] The first measured TDOA, obtained by subtracting the second RTOA from the first RTOA, can be expressed as: This refers to the first measurement TDOA. Of course, the first measurement TDOA can also be obtained by subtracting the first RTOA from the second RTOA, and this application does not limit this.

[0270] The second measured TDOA is the time difference between the arrival of the signal (e.g., SRS signal) from the reference device to the first and second positioning measuring devices; that is, the second measured TDOA is the difference between the third RTOA and the fourth RTOA. The third RTOA is obtained by the first positioning measuring device by measuring the signal from the reference device, and the fourth RTOA is obtained by the second positioning measuring device by measuring the signal from the reference device. The actual distance between the reference device and the positioning measuring devices is known, or it can be obtained through laser ranging or infrared ranging, or it can be calculated based on the actual positions of the reference device and the positioning measuring devices. Alternatively, the actual position of the reference device is known, or it can be obtained by positioning the reference device using a Global Navigation Satellite System (GNSS), WiFi, Bluetooth, etc.

[0271] refer to Figure 4 , Figure 4 In this context, UE_r is the reference device, and the third RTOA can be represented as: in, Indicates the third RTOA, This represents the theoretical transmission time of the SRS signal sent by UE_r between UE_r and BS1, e UE_r This represents the error introduced by the clock or phase offset of UE_r relative to the reference time T. It is understandable that in actual measurements, BS1 and / or UE_r cannot be perfectly synchronized with the reference time T, therefore e BS1 and / or e UE _ r Not zero.

[0272] The fourth RTOA can be represented as: in, Indicates the second RTOA, This represents the theoretical duration of the SRS signal transmitted by UE_r between UE_r and BS2. It is understandable that in actual measurements, BS2 and / or UE_r cannot be perfectly synchronized with the reference time T, therefore e BS2 and / or e UE_r Not zero.

[0273] The second measurement TDOA, obtained by subtracting the third RTOA from the fourth RTOA, can be expressed as: This refers to the second measurement TDOA. Of course, the second measurement TDOA can also be obtained by subtracting the third RTOA from the fourth RTOA, and this application does not limit this.

[0274] For example, the location management device receiving location information includes: the location management device receiving a first RTOA and a third RTOA from a first location measurement device; and the location management device receiving a second RTOA and a fourth RTOA from a second location measurement device.

[0275] For example, the location management device receiving location information includes: the location management device receiving a first RTOA, a second RTOA, a third RTOA, and a fourth RTOA from a first location measurement device. The second RTOA and the fourth RTOA are sent by the second location measurement device to the first location measurement device.

[0276] Alternatively, the positioning management device receives the first TDOA and the second TDOA from the first positioning measurement device. That is, after the first positioning measurement device receives the second RTOA and the fourth RTOA from the second positioning measurement device, it obtains the first TDOA based on the first RTOA and the second RTOA, and then obtains the second TDOA based on the third RTOA and the fourth RTOA, and sends the first TDOA and the second TDOA to the positioning management device.

[0277] For another example, the location management device receiving location information includes: the location management device receiving a first RTOA, a second RTOA, a third RTOA, and a fourth RTOA from the second location measurement device. The first RTOA and the third RTOA are sent by the first location measurement device to the second location measurement device.

[0278] Alternatively, the positioning management device receives the first TDOA and the second TDOA from the second positioning measurement device. That is, after the second positioning measurement device receives the first RTOA and the third RTOA from the first positioning measurement device, it obtains the first TDOA based on the first RTOA and the second RTOA, and then obtains the second TDOA based on the third RTOA and the fourth RTOA, and sends the first TDOA and the second TDOA to the positioning management device.

[0279] As described above, when using TDOA positioning technology to locate the terminal device to be located, the position of the terminal device is obtained based on the intersection of at least two hyperbolas, and the at least two hyperbolas are obtained based on at least two TDOAs. Therefore, in order to locate the terminal device to be located, the positioning information can also be used to determine the third and fourth measurement TDOAs. The third measurement TDOA is the time difference between the arrival of the signal sent by the terminal device to be located at the third and fourth positioning measurement devices. For more details on the third measurement TDOA, please refer to the first measurement TDOA. The fourth measurement TDOA is the time difference between the arrival of the signal sent by the reference device at the third and fourth positioning measurement devices. For more details on the fourth measurement TDOA, please refer to the second measurement TDOA. The first, second, third, and fourth positioning measurement devices include at least three different positioning measurement devices.

[0280] refer to Figure 4 , Figure 4 In this context, BS1 is the third positioning measurement device, and BS3 is the fourth positioning measurement device. Similar to the expression for the first measurement TDOA, the third measurement TDOA can be expressed as: Indicates the third measurement TDOA, This represents the theoretical transmission time of the SRS signal sent by the UE between the UE and BS3, e BS3 This represents the error introduced by the clock offset or phase offset of BS3 relative to the reference time T.

[0281] Similar to the expression for the second measurement TDOA, the fourth measurement TDOA can be expressed as: Indicates the fourth measurement TDOA, This indicates the theoretical duration of the SRS signal transmitted by UE_r between UE_r and BS3.

[0282] S320, the positioning management device determines the second theoretical TDOA based on the difference between the first measured TDOA and the second measured TDOA, as well as the first theoretical TDOA.

[0283] The first theoretical TDOA is the theoretical time difference between the signal sent by the reference device and the arrival at the first and second positioning measurement devices.

[0284] The second theoretical TDOA is the theoretical time difference between the signal sent by the terminal device to be positioned and the arrival at the first and second positioning measurement devices.

[0285] For example, if the difference between the first measured TDOA and the second measured TDOA is obtained by subtracting the second measured TDOA from the first measured TDOA, then the second theoretical TDOA is equal to the sum of the difference between the first measured TDOA and the second measured TDOA and the first theoretical TDOA.

[0286] The first measurement TDOA (i.e.) mentioned above ) and the second measurement TDOA ( The process of subtracting to obtain the difference is expressed as follows: in, This represents the first theory TDOA. This represents the actual distance between UE_r and BS2, where c represents the electromagnetic wave velocity. This represents the actual distance between UE_r and BS1. When the location of the reference device or the actual distance between the reference device and the positioning measurement devices (including the first and second positioning measurement devices) is known, it is equivalent to... This is known. Furthermore, the positioning management device is based on... The second theory TDOA can be obtained, that is

[0287] For example, if the difference between the first measured TDOA and the second measured TDOA is obtained by subtracting the first measured TDOA from the second measured TDOA, then the second theoretical TDOA is equal to the difference obtained by subtracting the difference between the first measured TDOA and the second measured TDOA from the first theoretical TDOA.

[0288] The second measurement TDOA mentioned above (i.e. ) and the first measurement TDOA ( The process of subtracting to obtain the difference is expressed as follows: exist Under known circumstances, the positioning management device is based on The second theory TDOA can be obtained, that is

[0289] Similarly, the positioning management device determines the fourth theoretical TDOA based on the difference between the third and fourth measured TDOA and the third theoretical TDOA. The third theoretical TDOA is the theoretical time difference between the signal sent by the reference device and the arrival times of the third and fourth positioning measurement devices. The fourth theoretical TDOA is the theoretical time difference between the signal sent by the device to be positioned and the arrival times of the third and fourth positioning measurement devices.

[0290] For example, the third measurement TDOA mentioned above (i.e. ) and the fourth measurement TDOA ( The process of subtracting to obtain the difference is expressed as follows: in This represents the third theory, TDOA. This represents the actual distance between UE_r and BS3. When the location of the reference device or the actual distance between the reference device and the positioning measurement devices (including the third and fourth positioning measurement devices) is known, it is equivalent to... This is known. Furthermore, the positioning management device is based on... The fourth theory, TDOA, can be obtained, that is...

[0291] S330, the positioning management device positions the terminal device to be positioned according to the second theory TDOA.

[0292] The positioning management device uses the second theory TDOA to locate the terminal device to be positioned, and the method includes: the positioning management device obtains the distance difference L1 based on the second theory TDOA and the electromagnetic wave velocity; then, based on the functional relationship between the position of the first positioning measuring device, the position of the second positioning measuring device, and the distance difference L1, it obtains a hyperbola (e.g., Figure 4 The hyperbola shown is shown in Figure 1.

[0293] It is understandable that the positioning management device also positions the terminal device to be positioned based on the aforementioned fourth theory TDOA, that is, the positioning management device obtains the distance difference L2 based on the fourth theory TDOA and the electromagnetic wave velocity; and then, based on the functional relationship between the position of the third positioning measuring device, the position of the fourth positioning measuring device, and the distance difference L2, obtains another hyperbola (e.g., Figure 4 (Hyperbola 2 shown). The intersection of hyperbola 1 and hyperbola 2 is the location of the terminal device to be located.

[0294] In this embodiment, when a reference device is introduced, the measured TDOA obtained by measuring the signal sent by the reference device is subtracted from the measured TDOA obtained by measuring the signal sent by the terminal device to be located. This eliminates errors introduced by clock or phase offset of the positioning measurement device, resulting in a theoretical TDOA between the terminal device to be located and the positioning measurement device. When the positioning management device positions the terminal device to be located based on the theoretical TDOA between the terminal device to be located and the positioning measurement device, a more accurate position of the terminal device to be located can be determined.

[0295] However, in actual measurements, when the positioning measurement device measures the signal from the terminal device to be positioned, the phase measured in the time domain exhibits phase drift. Taking the above-mentioned first positioning measurement device measuring the signal from the terminal device to be positioned as an example, if the phase measured by the first positioning measurement device in the time domain exhibits phase drift, then the above-mentioned first RTOA can be expressed as: t1 represents the error introduced by phase drift in the phase measured by the first positioning measuring device in the time domain. Since different positioning measuring devices exhibit different phase drifts in the time domain, even when using… Figure 3 The aforementioned positioning method also cannot eliminate errors caused by phase drift during the positioning measurement process.

[0296] In view of this, embodiments of this application also provide a positioning method to eliminate or reduce errors introduced by phase drift during positioning measurement, thereby improving positioning accuracy.

[0297] Figure 5 A schematic flowchart of a positioning method provided in another embodiment of this application is shown. The various steps included in method 500 are described in detail below.

[0298] S510, Network device #1 receives the first SRS signal from the first reference terminal device.

[0299] For example, network device #1 is a serving network device for the terminal device to be located, and the terminal device to be located is a terminal device with an unknown location. Another example is that network device #1 is a network device adjacent to the serving network device of the terminal device to be located. Yet another example is that network device #1 is a serving network device for a first reference terminal device. The first reference terminal device is a device capable of transmitting SRS signals. The actual distance between the first reference terminal device and the network devices (including network device #1) is known, or the actual distance between the first reference terminal device and the network devices can be obtained by laser ranging or infrared ranging, or the actual distance between the first reference terminal device and the network devices can be calculated based on the actual positions of the first reference terminal device and the network devices. The actual position of the first reference terminal device is known, or the actual position of the first reference terminal device can be obtained by locating the first reference terminal device using GNSS, WiFi, Bluetooth, etc.

[0300] Specifically, network device #1 receives a first SRS signal from the first reference terminal device on the first SRS resource. Correspondingly, the first reference terminal device transmits the first SRS signal on the first SRS resource.

[0301] Optionally, if network device #1 is not a serving network device of the first reference terminal device, then before receiving the first SRS signal, method 500 further includes: network device #1 receiving information about a first SRS resource from the positioning management device, the information about the first SRS resource being used to determine the first SRS resource. Accordingly, network device #1 determines the first SRS resource based on the information about the first SRS resource, and receives the first SRS signal on the first SRS resource.

[0302] For example, the information of the first SRS resource includes the resource configuration information of the first SRS resource and / or the identifier (ID) of the first SRS resource. The resource configuration information of the first SRS resource includes one or more of the following: starting symbol position, number of occupied symbols, transmission period and offset, transmission comb and offset, cyclic shift, frequency domain position and offset, and frequency hopping configuration. The ID of the first SRS resource is used to identify the first SRS resource, and the ID of the first SRS resource can also be referred to as the number of the first SRS resource.

[0303] S520, Network device #1 receives a second SRS signal from the terminal device to be located.

[0304] Specifically, network device #1 receives a second SRS signal from the terminal device to be located on the second SRS resource. Correspondingly, the terminal device to be located transmits a second SRS signal on the second SRS resource.

[0305] In one possible implementation, there is at least one overlapping temporal unit between the first SRS resource and the second SRS resource. The temporal unit can be a frame, subframe, slot, symbol, millisecond, etc.

[0306] For example, the existence of at least one overlapping time-domain unit between the first SRS resource and the second SRS resource includes the following cases: there is no time-domain unit offset between the first SRS resource and the second SRS resource, or there is a time-domain unit offset between the first SRS resource and the second SRS resource.

[0307] No time-domain offset between the first SRS resource and the second SRS resource means that the start symbol position of the first SRS resource is the same as the start symbol position of the second SRS resource, and / or the end symbol position of the first SRS resource is the same as the end symbol position of the second SRS resource. Figure 6 An example is shown where there is no time-domain offset between the first SRS resource and the second SRS resource. For example... Figure 6 As shown in (a), both the first SRS resource and the second SRS resource occupy symbols 11 to 14 in the time domain. That is, the start symbol position of the first SRS resource is the same as the start symbol position of the second SRS resource, and the end symbol position of the first SRS resource is the same as the end symbol position of the second SRS resource. Figure 6 As shown in (b), the first SRS resource occupies symbols 11 and 12, and the second SRS resource occupies symbols 11 to 14, meaning the starting symbol positions of the first SRS resource and the second SRS resource are the same. Figure 6 As shown in (c), the first SRS resource occupies symbols 11 to 14, and the second SRS resource occupies symbols 13 and 14, that is, the end symbol position of the first SRS resource is the same as the end symbol position of the second SRS resource.

[0308] like Figure 6 As shown in (a), when the time-domain location of the first SRS resource is exactly the same as that of the second SRS resource, it can also be said that the first SRS resource and the second SRS resource completely overlap in the time domain. Figure 6 As shown in (b) or (c), when the time domain location of the first SRS resource is partially the same as that of the second SRS resource, it can also be said that the first SRS resource and the second SRS resource partially overlap in the time domain.

[0309] When there is a one-time-domain unit offset between the first SRS resource and the second SRS resource, this offset refers to the offset between the nth time-domain unit of the first SRS resource and the nth time-domain unit of the second SRS resource. For example, this offset refers to the offset between the start symbol position of the first SRS resource and the start symbol position of the second SRS resource, or it refers to the offset between the end symbol position of the first SRS resource and the end symbol position of the second SRS resource. Figure 7 An example is shown where there is a time-domain cell offset between the first SRS resource and the second SRS resource. For example... Figure 7 As shown in (a), the first SRS resource occupies symbols 12 and 13, and the second SRS resource occupies symbols 11 to 14. That is, there is a one-symbol offset between the starting symbol position of the first SRS resource and the starting symbol position of the second SRS resource, and there is also a one-symbol offset between the ending symbol position of the first SRS resource and the ending symbol position of the second SRS resource. Figure 7 As shown in (b), the first SRS resource occupies symbols 12 to 14, and the second SRS resource occupies symbols 11 and 12. That is, there is a one-symbol offset between the starting symbol position of the first SRS resource and the starting symbol position of the second SRS resource, and there is also a one-symbol offset between the second symbol position of the first SRS resource and the second symbol position of the second SRS resource. Figure 7 As shown in (c), the first SRS resource occupies symbols 11 to 13, and the second SRS resource occupies symbols 13 and 14. That is, there is an offset of one symbol between the end symbol position of the first SRS resource and the end symbol position of the second SRS resource.

[0310] like Figure 7 As shown in (b) or (c), when the definitions of the time-domain cell offset between the first SRS resource and the second SRS resource are different, the offset between the first SRS resource and the second SRS resource may also be different. Figure 7 As shown in (b), if the offset of the time-domain cells between the first SRS resource and the second SRS resource refers to the offset between the end symbol positions, then there is an offset of two symbols between the first SRS resource and the second SRS resource. Figure 7 As shown in (c), if the offset between the first SRS resource and the second SRS resource refers to the offset between the starting symbol positions, then there is an offset of two symbols between the first SRS resource and the second SRS resource.

[0311] It should be noted that the embodiments of this application do not limit the existence of a time-domain unit offset between the first SRS resource and the second SRS resource. When there is at least one overlapping time-domain unit between the first SRS resource and the second SRS resource, there may be two or more time-domain unit offsets between the first SRS resource and the second SRS resource.

[0312] In another possible implementation, the second SRS resource and the first SRS resource are temporally adjacent and the number of temporal units between them does not exceed a preset value.

[0313] For example, if the time domain position of the second SRS resource precedes the time domain position of the first SRS resource, then the number of symbols between the end symbol position of the second SRS resource and the start symbol position of the first SRS resource does not exceed a preset value. Alternatively, if the time domain position of the first SRS resource precedes the time domain position of the second SRS resource, then the number of symbols between the end symbol position of the first SRS resource and the start symbol position of the second SRS resource does not exceed a preset value. Figure 8 As shown in (a), the first SRS resource occupies symbols 10 and 11, and the second SRS resource occupies symbols 13 and 14. The end symbol position of the first SRS resource (i.e., symbol 11) and the start symbol position of the second SRS resource (i.e., symbol 13) are separated by one symbol, thus the first SRS resource and the second SRS resource are separated by one symbol in the time domain. For example, if the time domain units occupied by the second SRS resource and the first SRS resource are interleaved, then the number of symbols between any symbol of the second SRS resource and an adjacent symbol occupied by the first SRS resource does not exceed a preset value. Figure 8 As shown in (b), the symbol 11 occupied by the second SRS resource is adjacent to the symbols 10 and 12 occupied by the first SRS resource and the number of symbols between them is 0. Therefore, the number of symbols between the first SRS resource and the second SRS resource is 0.

[0314] For example, the time domain unit is a symbol, and the preset value is 1, that is, the second SRS resource and the first SRS resource are separated by at most one symbol in the time domain.

[0315] It should be noted that the embodiments of this application do not limit the relationship between the first SRS resource and the second SRS resource in the frequency domain. The first SRS resource and the second SRS resource may overlap in the frequency domain or may not overlap in the frequency domain. Figure 6 As shown, the first SRS resource and the second SRS resource do not overlap at all in the frequency domain. For example... Figure 8 As shown, the first SRS resource and the second SRS resource overlap in the frequency domain.

[0316] Optionally, if network device #1 is not the serving network device of the terminal device to be located, then before receiving the second SRS signal, method 500 further includes: network device #1 receiving information about the second SRS resource from the positioning management device, the information about the second SRS resource being used to determine the second SRS resource. Accordingly, network device #1 determines the second SRS resource based on the information about the second SRS resource, and receives the second SRS signal on the second SRS resource.

[0317] For example, the information of the second SRS resource includes the resource configuration information of the second SRS resource and / or the ID of the second SRS resource. Further description of the information of the second SRS resource can be found in the description of the information of the first SRS resource above.

[0318] Optionally, prior to S510 and S520, method 500 further includes: network device #1 receiving a measurement request message from a location management device. The measurement request message requests network device #1 to measure a second SRS signal from the terminal device to be located, and to measure a first SRS signal from a first reference terminal device. For example, the location management device sends the measurement request message to network device #1 via the NRPPa protocol; that is, the location management device sends an NRPPa measurement request message to network device #1.

[0319] S530, network device #1 sends location information to the location management device. Correspondingly, the location management device receives the location information from network device #1.

[0320] The location information is obtained by network device #1 by measuring the first SRS signal and the second SRS signal, and is used to locate the terminal device to be located. For example, the location information includes RTOA#1 and RTOA#2, where RTOA#1 is the relative arrival time of the first SRS signal to network device #1, and RTOA#2 is the relative arrival time of the second SRS signal to network device #1. For another example, the location information includes AOA#1 and AOA#2, where AOA#1 is the angle of arrival of the first SRS signal to network device #1, and AOA#2 is the angle of arrival of the second SRS signal to network device #1. For yet another example, the location information includes RTOA#1, RTOA#2, AOA#1, and AOA#2. Optionally, the location information also includes a reference signal receiving power (RSRP)#1 obtained by network device #1 from measuring the first SRS signal and an RSRP#2 obtained by service network device #1 from measuring the second SRS signal.

[0321] Optionally, network device #1 sends location information to the location management device, including: network device #1 sending a measurement response message to the location management device, the measurement response message including the location information. For example, network device #1 sends a measurement response message to the location management device via the NRPPa protocol, that is, network device #1 sends an NRPPa measurement response message to the location management device.

[0322] Optionally, method 500 further includes: network device #1 receiving a positioning deactivation message from the positioning management device. Consequently, network device #1 no longer measures the first SRS signal and the second SRS signal. For example, the positioning management device sends the positioning deactivation message to network device #1 via the NRPPa protocol, i.e., the positioning management device sends an NRPPa positioning deactivation message to network device #1.

[0323] S540, the positioning management device locates the terminal device to be positioned based on the positioning information.

[0324] After receiving location information, the location management device can locate the terminal device to be located based on that information. It can be understood that if the location information includes RTOA#1 and RTOA#2, the location management device can locate the terminal device to be located using TDOA positioning technology. If the location information includes AOA#1 and AOA#2, the location management device can locate the terminal device to be located using AOA positioning technology.

[0325] The following uses positioning management devices to... Figure 3 The method described above uses the positioning of the terminal device to be positioned as an example for explanation. Figure 5 The method described can eliminate or reduce the error introduced by phase drift.

[0326] It should be understood that when the positioning management device locates the terminal device to be positioned using TDOA positioning technology, the positioning management device needs to locate the terminal device based on the measurement results obtained from measuring the first SRS signal and the second SRS signal by at least three network devices (including network device #1 mentioned above). (Reference) Figure 4Assume at least three network devices, including BS1 (i.e., network device #1), BS2, and BS3. BS2 measures the first and second SRS signals, obtaining measurement results RTOA#3 and RTOA#4. RTOA#3 is the relative arrival time of the first SRS signal to BS2, and RTOA#4 is the relative arrival time of the second SRS signal to BS2. BS3 measures the first and second SRS signals, obtaining measurement results RTOA#5 and RTOA#6. RTOA#5 is the relative arrival time of the first SRS signal to BS3, and RTOA#6 is the relative arrival time of the second SRS signal to BS3.

[0327] RTOA#1 can be represented as: in, This represents the theoretical duration of the transmission of the first SRS signal sent by UE_r (i.e., the first reference terminal device) between UE_r and BS1. BS1 e represents the error introduced by the clock offset or phase offset of BS1 relative to the reference time T. UE _ r t1 represents the error introduced by the clock offset or phase offset of UE_r relative to the reference time T, and t1 represents the error introduced by the phase drift of the phase measured by BS1 in the time domain of the first SRS resource.

[0328] RTOA#2 can be represented as: in, This represents the theoretical duration of the transmission of the second SRS signal sent by the UE (i.e., the terminal device to be located) between the UE and BS1, e UE t1 represents the error introduced by the clock offset or phase offset of the UE relative to the reference time T, and t2 represents the error introduced by the phase drift of the phase measured by BS1 in the time domain of the second SRS resource.

[0329] RTOA#3 can be represented as: in, This represents the theoretical duration of the first SRS signal transmitted by UE_r between UE_r and BS2, e BS2 t1 represents the error introduced by the clock offset or phase offset of BS1 relative to the reference time T, and t3 represents the error introduced by the phase drift of the phase measured by BS2 in the time domain of the first SRS resource.

[0330] RTOA#4 can be represented as: in, t4 represents the theoretical duration of the transmission of the second SRS signal sent by the UE between the UE and BS2, and t4 represents the error introduced by the phase drift of the phase measured by BS2 in the time domain of the second SRS resource.

[0331] RTOA#5 can be represented as: in, This represents the theoretical duration of the first SRS signal transmitted by UE_r between UE_r and BS3, e BS3 t5 represents the error introduced by the clock offset or phase offset of BS3 relative to the reference time T, and t5 represents the error introduced by the phase drift of the phase measured by BS3 in the time domain of the first SRS resource.

[0332] RTOA#6 can be represented as: in, t6 represents the theoretical duration of the transmission of the second SRS signal sent by the UE between the UE and BS3, and t6 represents the error introduced by the phase drift of the phase measured by BS3 in the time domain of the second SRS resource.

[0333] Furthermore, the positioning management device calculates the difference between RTOA#3 and RTOA#1 to obtain TDOA#1, i.e. The difference between RTOA#4 and RTOA#2 is TDOA#2, i.e. The positioning management device then calculates the difference between TDOA#2 and TDOA#1 to obtain: Given the known location of UE_r or the actual distance between UE_r and network devices (including BS1 and BS2), it is equivalent to This is known. Therefore, the location management device can obtain... Furthermore, the positioning management device can be based on The distance difference L1 is obtained from the electromagnetic wave velocity, and a hyperbola (e.g., based on the functional relationship between the positions of BS1 and BS2 and the distance difference L1) is obtained. Figure 4 The hyperbola shown is shown in Figure 1.

[0334] The positioning management device calculates the difference between RTOA#5 and RTOA#1 to obtain TDOA#3, which is... The difference between RTOA#6 and RTOA#2 is TDOA#4, i.e. The positioning management device then calculates the difference between TDOA#4 and TDOA#3 to obtain: Given the known location of UE_r or the actual distance between UE_r and network devices (including BS1 and BS3), it is equivalent to This is known. Therefore, the location management device can obtain... Furthermore, the positioning management device can be based on The distance difference L2 is obtained from the electromagnetic wave velocity, and a hyperbola is obtained based on the functional relationship between the positions of BS1 and BS3 and the distance difference L2 (e.g., ...). Figure 4The hyperbola shown is 2).

[0335] Furthermore, the positioning management device determines that the terminal device to be positioned is located at the intersection of hyperbola 1 and hyperbola 2.

[0336] It should be understood that if the first SRS resource and the second SRS resource completely overlap in the time domain, then the phase drift of the phase measured by network device #1 in the time domain of the first and second SRS resources will be the same, therefore t2 is equal to t1. Similarly, t3 is equal to t4, and t5 is equal to t6. Based on this, in the above positioning process, the positioning management device can obtain the result by subtracting TDOA#1 and TDOA#2. And by subtracting TDOA#3 and TDOA#4, we can obtain Furthermore, the positioning management device is based on and When locating a terminal device, a more accurate location can be obtained. In other words, if the first SRS resource and the second SRS resource completely overlap in the time domain, the positioning management device can eliminate not only the errors introduced by the clock offset or phase offset of the network device, but also the errors introduced by the phase drift of the phase measured by the network device, by subtracting TDOA#1 and TDOA#2, TDOA#3 and TDOA#4.

[0337] If the first SRS resource and the second SRS resource partially overlap in the time domain, or if the first SRS resource and the second SRS resource are adjacent in the time domain and the number of time units between them does not exceed a preset value, then the phase drift of the phase measured by network device #1 in the time domain of the first SRS resource and the second SRS resource is relatively close, so the difference between t2 and t1 is very small. Similarly, the difference between t3 and t4 is very small, and the difference between t5 and t6 is very small. Based on this, in the above positioning process, although the positioning management device cannot completely eliminate the error introduced by the phase drift of the phase measured by the network device by subtracting TDOA#2 and TDOA#1, and TDOA#4 and TDOA#3, it can reduce the error introduced by the phase drift to a certain extent compared with the case where the time domain interval between the first SRS resource and the second SRS resource is large.

[0338] In this embodiment, the terminal device to be located transmits a first SRS signal on the first SRS resource, and the first reference terminal device transmits a second SRS signal on the second SRS resource. Since there is at least one overlapping time domain unit between the first SRS resource and the second SRS resource, when the terminal device to be located is located by measuring the first SRS signal and the second SRS signal, the phase drift of the phase measured by the same network device in the time domain of the first SRS resource and the second SRS resource is the same or similar, which helps to eliminate or reduce the error introduced by the phase drift and improve the positioning accuracy.

[0339] It is understood that before the terminal device to be located sends the second SRS signal through the second SRS resource, the serving network device of the terminal device to be located (hereinafter referred to as serving network device #1) configures the second SRS resource for the terminal device to be located, and before the first reference terminal device sends the first SRS signal through the first SRS resource, the serving network device of the first reference terminal device (hereinafter referred to as serving network device #2) configures the first SRS resource for the first reference terminal device. The following is in conjunction with... Figure 9 and Figure 10 This describes a method for configuring SRS resources for the terminal device to be located and the first reference terminal device.

[0340] Figure 9 A schematic flowchart illustrating the resource configuration method provided in an embodiment of this application is shown. Figure 9 In the method shown, before the terminal device to be located sends the second SRS signal, the serving network device #1 configures the second SRS resource for the terminal device to be located according to a predefined protocol method or according to the instructions of the location management device. The steps included in method 900 are described in detail below.

[0341] It should be noted that the methods for configuring SRS resources for the terminal device to be located and the first reference terminal device differ depending on whether serving network device #1 and serving network device #2 are the same network device or different network devices. The methods for configuring SRS resources for the terminal device to be located and the first reference terminal device in these two scenarios are described below.

[0342] Case 1: If the serving network device #1 and the serving network device #2 are different network devices, then the method for configuring SRS resources for the terminal device to be located and the first reference terminal device includes the following steps.

[0343] S910, Serving Network Device #1 receives first reference SRS resource information from the Positioning Management Device. Accordingly, the Positioning Management Device sends the first reference SRS resource information to Serving Network Device #1.

[0344] For example, the first reference SRS resource information includes one or more of the following: starting symbol position, number of occupied symbols, transmission period and offset, transmission comb and offset, cyclic shift, frequency domain position and offset, and frequency hopping configuration.

[0345] For example, the first reference SRS resource information includes at least: the starting symbol position, the number of occupied symbols, the transmission period, and the offset.

[0346] For example, the first reference SRS resource information includes the ID of the first SRS resource.

[0347] This application does not limit the method by which the positioning management device obtains the first reference SRS resource information.

[0348] In one possible implementation, the first reference SRS resource information is received by the location management device from the serving network device #2.

[0349] The first reference SRS resource information sent by the serving network device #2 to the positioning management device is information about the first SRS resource, meaning the first reference SRS resource information is related to the first SRS resource. The first SRS resource is the SRS resource configured by the serving network device #2 for the first reference terminal device. A description of the information of the first SRS resource can be found in S510 of method 500 above.

[0350] In another possible implementation, the first reference SRS resource information is determined by the positioning management device based on the SRS resources of at least one reference terminal device, that is, the first reference SRS resource information is related to the SRS resources of at least one reference terminal device.

[0351] For example, the first reference SRS resource information is related to the SRS resource of the first reference terminal device. For instance, the first reference SRS resource information is information about the SRS resource of the first reference terminal device (i.e., the first SRS resource), or the first reference SRS resource information is information obtained based on the first SRS resource.

[0352] The first reference terminal device is the reference terminal device that is closest to the terminal device to be located, and / or the reference terminal device with the best signal quality. The location of the reference terminal device is known, or the actual distance between the reference terminal device and the network devices (including serving network device #1 and serving network device #2) is known.

[0353] The information obtained from the first SRS resource may be information about an SRS resource that includes the first SRS resource, or information about an SRS resource that has at least one overlapping time-domain unit with the first SRS resource.

[0354] For example, the first reference SRS resource information is related to the SRS resources of at least two reference terminal devices. For instance, the first reference SRS resource information is information about the SRS resources of at least two reference terminal devices, or the first reference SRS resource information is information obtained based on the SRS resources of at least two reference terminal devices.

[0355] The at least two reference terminal devices include a first reference terminal device. The at least two reference terminal devices may include reference terminal devices whose distance from the terminal device to be located is less than a first threshold, and / or, reference terminal devices whose signal quality is higher than a second threshold. The first threshold and / or the second threshold may be pre-configured or predefined by the protocol; this embodiment does not limit this.

[0356] The SRS resource information of at least two reference terminal devices includes the SRS resource information of each of the at least two reference terminal devices.

[0357] The information obtained from the SRS resources of at least two reference terminal devices may be information about SRS resources including the SRS resources of at least two reference terminal devices, or it may be information about SRS resources that have at least one overlapping time-domain unit with the SRS resources of at least two reference terminal devices.

[0358] Optionally, the serving network device #1 receives first reference SRS resource information from the location management device, including: the serving network device #1 receives multiple reference SRS resource information and priority information of the multiple reference SRS resource information from the location management device, the priority information being used to indicate the priority of each reference SRS resource information among the multiple reference SRS resource information, the multiple reference SRS resource information including the first reference SRS resource information.

[0359] Optionally, the serving network device #1 may also receive the identifiers of multiple reference terminal devices, which correspond one-to-one with multiple reference SRS resource information.

[0360] Optionally, the positioning management device sends the first reference SRS resource information to the serving network device #1, including: the positioning management device sending a positioning information request message to the serving network device #1, the positioning information request message including the first reference SRS resource information. For example, the positioning management device sends the positioning information request message to the serving network device #1 via the NRPPa protocol, that is, the positioning management device sends an NRPPa positioning information request message to the serving network device #1.

[0361] S920, Serving network device #1 sends the resource configuration information of the second SRS resource to the terminal device to be located.

[0362] The resource configuration information of the second SRS resource indicates the second SRS resource. The resource configuration information of the second SRS resource includes one or more of the following: starting symbol position, number of occupied symbols, transmission period and offset, transmission comb and offset, cyclic shift, frequency domain position and offset, and frequency hopping configuration.

[0363] After receiving the first reference SRS resource information, the serving network device #1 configures a second SRS resource for the terminal device to be located based on the first reference SRS resource information. For example, after receiving the first reference SRS resource information, the serving network device #1 determines the time domain location of the first SRS resource based on the first reference SRS resource information, and then determines a second SRS resource for the terminal device to be located that has at least one time domain unit overlapping with the first SRS resource. For example, the time unit is a symbol.

[0364] For example, if the first reference SRS resource information includes a start symbol position, then the serving network device #1 can configure a second SRS resource occupying that start symbol for the terminal device to be located based on the first reference SRS resource information, thereby facilitating the achievement of at least one overlapping time-domain unit between the first SRS resource and the second SRS resource. For example, if the start symbol position included in the first reference SRS resource information is the start symbol position of the first SRS resource, then the first SRS resource and the second SRS resource overlap at that start symbol position.

[0365] For example, if the first reference SRS resource information includes the starting symbol position and the number of occupied symbols, then the serving network device #1 can determine the time-domain position of an SRS resource based on the first reference SRS resource information. Furthermore, the serving network device #1 can determine a second SRS resource for the terminal device to be located that has at least one overlapping time-domain unit with that SRS resource, thereby facilitating the realization that there is at least one overlapping time-domain unit between the first SRS resource and the second SRS resource. For instance, if the SRS resource determined according to the first reference SRS resource information includes the first SRS resource, and the second SRS resource configured by the serving network device #2 for the terminal device to be located completely overlaps with the SRS resource determined according to the first reference SRS resource information, then there is at least one overlapping symbol between the first SRS resource and the second SRS resource.

[0366] For example, if the first reference SRS resource information includes frequency domain location and offset, the serving network device #1 can determine the time domain location of the SRS resource corresponding to the frequency domain location and offset based on the first reference SRS resource information. Then, the serving network device #1 can determine the second SRS resource that has at least one overlapping time domain unit with the SRS resource for the terminal device to be located, which is beneficial to realize that there is at least one overlapping time domain unit between the first SRS resource and the second SRS resource.

[0367] Optionally, if in S910, the serving network device #1 receives multiple reference SRS resource information, then the serving network device #1 selects a first reference SRS resource information from the multiple reference SRS resource information, and then configures a second SRS resource for the terminal device to be located based on the first reference SRS resource information. For example, the first reference SRS resource information is the one with the highest priority among the multiple reference SRS resource information. Another example is that the first reference SRS resource information is the one with the highest priority among at least one target reference SRS resource information, where at least one target reference SRS resource information belongs to multiple reference SRS resource information, and there is at least one overlapping time domain unit between the SRS resource indicated by each target reference SRS resource information and the SRS resource that can be allocated to the terminal device to be located. For example, SRS resource #A, indicated by reference SRS resource information #A among multiple reference SRS resource information, occupies symbols 11 and 12; SRS resource #B, indicated by reference SRS resource information #B, among multiple reference SRS resource information, occupies symbols 13 and 14. The SRS resources that can be allocated to the terminal device to be located occupy symbols 11 and 14. That is, SRS resources #A and #B overlap with the SRS resources that can be allocated to the terminal device to be located in the time domain. Furthermore, if the priority of reference SRS resource information #A is higher than the priority of reference SRS resource information #B, then the serving network device #1 determines reference SRS resource information #A as the first reference SRS resource information.

[0368] For example, the serving network device #1 can determine, according to a predefined protocol, to configure a second SRS resource for the terminal device to be located that has at least one time-domain unit overlapping with the first SRS resource. This predefined method includes: determining a second SRS resource for the terminal device to be located that has at least one time-domain unit overlapping with the first SRS resource. For example, this predefined method includes: determining a second SRS resource for the terminal device to be located that has no time-domain unit offset from the first SRS resource; or, this predefined method includes: determining a second SRS resource for the terminal device to be located that has one time-domain unit offset from the first SRS resource; or, this predefined method includes: determining a second SRS resource for the terminal device to be located that is time-domain adjacent to the first SRS resource and the number of time-domain units between them does not exceed a preset value.

[0369] For example, the service network device #1 may determine, according to the instructions of the location management device, to configure a second SRS resource for the terminal device to be located, which has at least one time domain unit overlapping with the first SRS resource. That is, before S920, the method 900 further includes S921 and / or S922.

[0370] S921, Serving network device #1 receives first instruction information from the positioning management device. Accordingly, the positioning management device sends the first instruction information to Serving network device #1.

[0371] For example, the first indication information is used to indicate that a second SRS resource that completely overlaps with the first SRS resource in the time domain is configured for the terminal device to be located, or to indicate that a second SRS resource that partially overlaps with the first SRS resource in the time domain is configured for the terminal device to be located. As another example, the first indication information is used to indicate that a second SRS resource that has no time domain offset from the first SRS resource is configured for the terminal device to be located, or to indicate that a second SRS resource that has a time domain offset from the first SRS resource is configured for the terminal device to be located.

[0372] For example, when the first indication information is used to indicate that a second SRS resource that completely overlaps with the first SRS resource in the time domain is configured for the terminal device to be located, it is equivalent to the first indication information being used to indicate that the time domain resource indicated by the first reference SRS resource information is configured for the terminal device to be located.

[0373] For example, the first instruction information could be named "Recommended Configuration Label".

[0374] For example, the first indication information can be a 1-bit information. For instance, if the value of the first indication information is "1", it is used to indicate that a second SRS resource that completely overlaps with the first SRS resource in the time domain is configured for the terminal device to be located. If the value of the first indication information is "0", it is used to indicate that a second SRS resource that partially overlaps with the first SRS resource in the time domain is configured for the terminal device to be located. As another example, if the value of the first indication information is "1", it is used to indicate that a second SRS resource that completely overlaps with the first SRS resource in the time domain is configured for the terminal device to be located. If the value of the first indication information is "0", it is used to indicate that a second SRS resource that partially overlaps with the first SRS resource in the time domain is configured for the terminal device to be located.

[0375] The first indication information can be a 2-bit information. For example, if the value of the first indication information is "00", it is used to indicate that a second SRS resource that completely overlaps with the first SRS resource in the time domain is configured for the terminal device to be located. If the value of the first indication information is "10", it is used to indicate that a second SRS resource that partially overlaps with the first SRS resource in the time domain is configured for the terminal device to be located. If the value of the first indication information is "01", it is used to indicate that a second SRS resource that is adjacent to the first SRS resource in the time domain is configured for the terminal device to be located.

[0376] Optionally, the first indication information can be used to instruct the configuration of a second SRS resource that completely overlaps with the first SRS resource for the terminal device to be located, or the first indication information can be used to instruct the configuration of a second SRS resource that is adjacent to the first SRS resource for the terminal device to be located. For example, if the value of the first indication information is "1", it is used to instruct the configuration of a second SRS resource that completely overlaps with the first SRS resource for the terminal device to be located; if the value of the first indication information is "0", it is used to instruct the configuration of a second SRS resource that is adjacent to the first SRS resource for the terminal device to be located. Wherein, "completely overlapping" means that the second SRS resource and the first SRS resource completely overlap in both the time domain and the frequency domain. "Adjacent" means that the second SRS resource and the first SRS resource are adjacent in the time domain and / or adjacent in the frequency domain.

[0377] It should be noted that the first reference SRS resource information and the first indication information sent by the positioning management device to the serving network device #1 can be carried in the same message. For example, the NRPPa positioning information request message sent by the positioning management device to the serving network device #1 includes the first reference SRS resource information and the first indication information. Alternatively, the first reference SRS resource information and the first indication information sent by the positioning management device to the serving network device #1 can be carried in different messages.

[0378] S922, the positioning management device sends a second instruction message to the serving network device #1. Accordingly, the positioning management device sends a second instruction message to the serving network device #1.

[0379] The second indication information is used to indicate one or more of the following: offset, time-domain unit, and the maximum allowed frequency domain spacing between the first SRS resource and the second SRS resource. The offset refers to the allowable offset of time-domain units between the first SRS resource and the second SRS resource. For example, the frequency domain spacing is used to characterize the number of frequency domain units; that is, the second indication information is also used to indicate the maximum number of frequency domain units allowed for the spacing between the first SRS resource and the second SRS resource in the frequency domain. A frequency domain unit is a subcarrier, a resource block (RB), etc.

[0380] For example, the second indication information can be named "offset indication".

[0381] For example, the value of the second indication information is equal to the offset. For instance, if the value of the second indication information is "0", it means the offset is 0. In this case, the second indication information can also be said to indicate that a second SRS resource that completely overlaps with the first SRS resource in the time domain is configured for the terminal device to be located, or to indicate that the time domain resource indicated by the first reference SRS resource information is configured for the terminal device to be located. For instance, if the value of the second indication information is "1", it means the offset is 1. In this case, the second indication information can also be said to indicate that a second SRS resource with an offset of one time domain unit from the first SRS resource is configured for the terminal device to be located, or to indicate that a second SRS resource with an offset of at most one time domain unit from the first SRS resource is configured for the terminal device to be located.

[0382] For example, the value of the second indication information is equal to the maximum number of frequency domain units that the first SRS resource and the second SRS resource are allowed to be spaced in the frequency domain. That is, the second indication information is used to indicate the maximum number of frequency domain units that the first SRS resource and the second SRS resource are allowed to be spaced in the frequency domain.

[0383] For example, the second indication information includes two values: the first value indicates the offset, and the second value indicates the maximum number of frequency domain units that the first SRS resource and the second SRS resource are allowed to be spaced apart in the frequency domain.

[0384] It should be noted that the first reference SRS resource information and the second indication information sent by the location management device to the serving network device #1 can be carried in the same message. For example, the NRPPa location information request message sent by the location management device to the serving network device #1 includes the first reference SRS resource information and the second indication information. Alternatively, the first reference SRS resource information and the second indication information sent by the location management device to the serving network device #1 can be carried in different messages.

[0385] It should also be noted that if the serving network device #1 receives the first indication information, then the serving network device #1 configures the second SRS resource for the terminal device to be located according to the first indication information. If the serving network device #1 receives the second indication information, then the serving network device #1 configures the second SRS resource for the terminal device to be located according to the second indication information. If the serving network device #1 receives both the first and second indication information, then the serving network device #1 can configure the second SRS resource for the terminal device to be located according to either the first or the second indication information. For example, if the first indication information is used to indicate that a second SRS resource partially overlaps with the first SRS resource is configured for the terminal device to be located, and the second indication information is used to indicate that the time domain unit is a symbol and the offset is 1, then the serving network device #1 configures the second SRS resource for the terminal device to be located with an offset of at most one symbol from the first SRS resource, according to both the first and second indication information. For example, the first indication information is used to indicate that a second SRS resource adjacent to the first SRS resource is configured for the terminal device to be located, and the second indication information is used to indicate that the maximum number of frequency domain units allowed to be spaced between the first SRS resource and the second SRS resource in the frequency domain is 1. Then, according to the first indication information and the second indication information, the serving network device #1 configures a second SRS resource for the terminal device to be located that is completely overlapping with the first SRS resource in the time domain, adjacent to it in the frequency domain, and with a frequency domain unit spacing of no more than 1.

[0386] Optionally, method 900 further includes: the serving network device #1 receiving third indication information from the positioning management device, the third indication information indicating that the first SRS resource is a reference resource. Accordingly, the serving network device #1 uses the first SRS resource as a reference resource based on the third indication information, and configures a second SRS resource for the terminal device to be located that has at least one overlapping time-domain unit with the first SRS resource. The reference resource refers to the SRS resource of the reference terminal device.

[0387] Optionally, the serving network device #1 receives first reference SRS resource information from the positioning management device, including: the serving network device #1 receives reference resource information from the positioning management device, the reference resource information including the first reference SRS resource information. Accordingly, the serving network device #1 uses the first SRS resource as a reference resource based on the reference resource information, and configures a second SRS resource for the terminal device to be located that has at least one overlapping time domain unit with the first SRS resource.

[0388] Optionally, method 900 also includes S923.

[0389] S923, Serving network device #1 sends information about the second SRS resource to the positioning management device. Accordingly, the positioning management device receives the information about the second SRS resource from Serving network device #1.

[0390] For more information on the second SRS resource, please refer to S510 in Method 500 above.

[0391] If the location management network element sends multiple reference SRS resource information to the serving network device #1, then after receiving the information of the second SRS resource, the location management device can determine the first reference SRS resource information from the multiple reference SRS resource information based on the information of the second SRS resource. For example, it can determine that the first reference SRS resource information is the highest priority among at least one target reference SRS resource information. Furthermore, the location management device can determine that the first reference terminal device corresponding to the first reference SRS resource information participates in the location of the terminal device to be located.

[0392] Optionally, if the positioning management device sends the identifiers of multiple reference terminal devices corresponding to multiple reference SRS resource information to the serving network device #1, then in S923, the serving network device #1 may send the identifier of the first reference terminal device corresponding to the first reference SRS resource information to the positioning management device.

[0393] Optionally, if in S910, the location management device sends first reference SRS resource information to the serving network device #1 via a location information request message, then method 900 further includes: the serving network device #1 sending a location information response message to the location management device. For example, the serving network device #1 sends the location information response message to the location management device via the NRPPa protocol, i.e., the serving network device #1 sends an NRPPa location information response message to the location management device. Optionally, the location information response message includes information about the second SRS resource.

[0394] S930, the serving network device #2 sends resource configuration information of the first SRS resource to the first reference terminal device. Correspondingly, the first reference terminal device receives the resource configuration information of the first SRS resource from the serving network device #2.

[0395] The resource configuration information of the first SRS resource indicates the first SRS resource. The resource configuration information of the first SRS resource includes one or more of the following: starting symbol position, number of occupied symbols, transmission period and offset, transmission comb and offset, cyclic shift, frequency domain position and offset, and frequency hopping configuration.

[0396] Scenario 2: If the serving network device #1 and the serving network device #2 are the same network devices, then the method for configuring SRS resources for the terminal device to be located and the first reference terminal device includes the following steps.

[0397] S920, Serving network device #1 sends the resource configuration information of the second SRS resource to the terminal device to be located.

[0398] The resource configuration information of the second SRS resource indicates the second SRS resource.

[0399] S930, Serving network device #2 sends resource configuration information of the first SRS resource to the first reference terminal device.

[0400] The resource configuration information for the first SRS resource indicates the first SRS resource. Serving network device #2 is the same network device as serving network device #1.

[0401] For example, the serving network device #1 can configure a second SRS resource for the terminal device to be located and a first SRS resource for the first reference terminal device according to a predefined method in the protocol, wherein there is at least one overlapping time domain unit between the first SRS resource and the second SRS resource. A description of the predefined method can be found above.

[0402] For example, the service network device #1 may configure a second SRS resource for the terminal device to be located and a first SRS resource for the first reference terminal device according to the instructions of the location management device. That is, before S920 and S930, method 900 further includes S921 and / or S922.

[0403] S921, Serving network device #1 receives first instruction information from the positioning management device. Accordingly, the positioning management device sends the first instruction information to Serving network device #1.

[0404] More details about the S921 can be found above.

[0405] After receiving the first instruction information, the serving network device #1 configures SRS resources for the terminal device to be located and the first reference terminal device according to the first instruction information. For example, if the first instruction information is used to instruct the configuration of a second SRS resource that overlaps with the first SRS resource in the time domain for the terminal device to be located, then the second SRS resource configured by the serving network device #1 for the terminal device to be located overlaps with the first SRS resource configured for the first reference terminal device in the time domain.

[0406] S922, Serving network device #1 receives second instruction information from the positioning management device. Accordingly, the positioning management device sends the second instruction information to Serving network device #1.

[0407] More details about the S922 can be found above.

[0408] After receiving the second indication information, the serving network device #1 configures SRS resources for the terminal device to be located and the first reference terminal device according to the second indication information. For example, if the offset indicated by the second indication information is 0, then there is no time domain unit offset between the second SRS resource configured by the serving network device #1 for the terminal device to be located and the first SRS resource configured for the first reference terminal device.

[0409] After serving network device #1 configures a second SRS resource for the terminal device to be located, and serving network device #2 configures a first SRS resource for the first reference terminal device, the terminal device to be located can send a second SRS signal on the second SRS resource, and the first reference terminal device can send a first SRS signal on the first SRS resource. The network devices can then locate the terminal device to be located by measuring the first and second SRS signals. The method by which the network devices locate the terminal device to be located can refer to method 500 above.

[0410] In this embodiment, the serving network device of the terminal device to be located can configure a second SRS resource for the terminal device to be located, which has at least one time-domain unit overlapping with the first SRS resource, according to a predefined protocol or an instruction from the positioning management device. Furthermore, when locating the terminal device to be located by measuring the first SRS signal transmitted by the first reference terminal device in the first SRS resource and the second SRS signal transmitted by the terminal device to be located in the second SRS resource, the phase drifts measured by the same network device in the time domain of the first and second SRS resources are the same or similar, thereby helping to eliminate or reduce the error introduced by phase drift and improve positioning accuracy.

[0411] Figure 10 A schematic flowchart illustrating a resource configuration method provided in another embodiment of this application is shown. Figure 10In the method shown, the serving network device #1 sends the information of the second SRS resource to the positioning management device, which then sends the information of the second SRS resource to the serving network device #2. Thus, the serving network device #2 can configure the first SRS resource for the first reference terminal device based on the information of the second SRS resource. The steps of method 1000 are described in detail below.

[0412] S1010, Serving network device #1 sends resource configuration information of the second SRS resource to the terminal device to be located. Correspondingly, the terminal device to be located receives the resource configuration information of the second SRS resource from Serving network device #1.

[0413] The description of the resource configuration information of the second SRS resource can be found in S930 of method 900 above.

[0414] Optionally, when the serving network device #1 receives a location information request message from the location management device, it configures a second SRS resource for the terminal device to be located, that is, it sends the resource configuration information of the second SRS resource to the terminal device to be located.

[0415] S1020, Serving network device #1 sends information about the second SRS resource to the positioning management device. Accordingly, the positioning management device receives the information about the second SRS resource from Serving network device #1.

[0416] The description of the resource configuration information of the second SRS resource can be found in S510 of method 500 above.

[0417] Optionally, the serving network device #1 sends information about the second SRS resource to the location management device, including: the serving network device #1 sends a location information response message to the location management device, the location information response message including information about the second SRS resource.

[0418] S1030, the location management device sends information about the second SRS resource to the serving network device #2. Correspondingly, the serving network device #2 receives the information about the second SRS resource from the location management device.

[0419] S1040, Serving network device #2 sends resource configuration information of the first SRS resource to the first reference terminal device. Correspondingly, the first reference terminal device receives the resource configuration information of the first SRS resource from Serving network device #2.

[0420] The description of the resource configuration information of the first SRS resource can be found in S940 of method 900 above.

[0421] After receiving the information about the second SRS resource, the serving network device #2 configures the second SRS resource for the first reference terminal device based on the information about the second SRS resource. Specifically, the serving network device #2 determines the time domain location of the second SRS resource based on the information about the second SRS resource, and then configures the first reference terminal device with a first SRS resource that has at least one time domain unit overlapping with the second SRS resource.

[0422] Similar to the method in method 900 where serving network device #1 configures the second SRS resource for the terminal device to be located based on the first reference SRS resource information, after receiving the second SRS resource information, serving network device #2 can configure the first SRS resource for the first reference terminal device, which has at least one overlapping time domain unit with the second SRS resource, according to a predefined method in the protocol or an instruction from the positioning management device. For more details on how serving network device #2 configures the first SRS resource for the first reference terminal device, please refer to the description in method 900 where serving network device #1 configures the second SRS resource for the terminal device to be located.

[0423] After serving network device #1 configures a second SRS resource for the terminal device to be located, and serving network device #2 configures a first SRS resource for the first reference terminal device, the terminal device to be located can send a second SRS signal on the second SRS resource, and the first reference terminal device can send a first SRS signal on the first SRS resource. The network devices can then locate the terminal device to be located by measuring the first and second SRS signals. The method by which the network devices locate the terminal device to be located can refer to method 500 above.

[0424] In this embodiment, the serving network device of the first reference terminal device can configure a first SRS resource with at least one overlapping time domain unit with the second SRS resource according to the protocol predefined or the instruction of the positioning management device, and according to the information of the second SRS resource. Furthermore, when locating the terminal device to be located by measuring the first SRS signal transmitted by the first reference terminal device in the first SRS resource and the second SRS signal transmitted by the terminal device to be located in the second SRS resource, the phase drifts measured by the same network device in the time domain of the first SRS resource and the second SRS resource are the same or similar, thereby helping to eliminate or reduce the error introduced by phase drift and improve positioning accuracy.

[0425] The above, combined with Figures 3 to 10 The methods provided in the embodiments of this application are described in detail below. Figures 11 to 13The apparatus provided in the embodiments of this application is described in detail. It should be understood that the description of the apparatus embodiments corresponds to the description of the method embodiments. Therefore, for content not described in detail, please refer to the method embodiments above. For the sake of brevity, it will not be repeated here.

[0426] Figure 11 This is a schematic block diagram of the apparatus 2000 provided in an embodiment of this application. As shown in the figure, the apparatus 2000 may include a transceiver unit 2010 and a processing unit 2020.

[0427] In one possible design, the device 2000 can be the positioning management device in the above method embodiments, or it can be a chip used to implement the functions of the positioning management device in the above method embodiments.

[0428] It should be understood that the device 2000 may correspond to the positioning management device in method 300, method 500, method 900 or method 1000 of the embodiments of this application, and the device 2000 may include tools for performing... Figure 3 Method 300 Figure 5 Method 500 Figure 9 Method 900 or Figure 10 The method unit executed by the positioning management device in method 1000. Furthermore, each unit in the device 2000 and the other operations and / or functions described above are respectively for implementing... Figure 3 Method 300 Figure 5 Method 500 Figure 9 Method 900 or Figure 10 The corresponding process of method 1000 is described above. It should be understood that the specific process of each unit performing the above-mentioned corresponding steps has been described in detail in the above method embodiments, and will not be repeated here for the sake of brevity.

[0429] In another possible design, the device 2000 may be a network device in the above method embodiments or a chip for implementing the functions of the network device in the above method embodiments.

[0430] It should be understood that the device 2000 may correspond to network device #1 in method 500 of this application embodiment, or to serving network device #1 or serving network device #2 in method 900 or method 1000 of this application embodiment. The device 2000 may include tools for performing Figure 5 The method 500 in the network device #1 is a unit that executes the method, or may include a unit for executing the method. Figure 9 Method 900 or Figure 10 The method 1000 is a unit that executes the method in service network device #1 or service network device #2. Furthermore, each unit in the apparatus 2000 and the other operations and / or functions described above are respectively for implementing... Figure 5 Method 500 Figure 9 Method 900 or Figure 10 The corresponding process of method 1000 is described above. It should be understood that the specific process of each unit performing the above-mentioned corresponding steps has been described in detail in the above method embodiments, and will not be repeated here for the sake of brevity.

[0431] It should also be understood that the transceiver unit 2010 in the device 2000 may correspond to Figure 12 The transceiver 3020 in the device 3000 shown in the figure, and the processing unit 2020 in the device 2000 may correspond to Figure 12 The processor 3010 in the device 3000 shown in the figure.

[0432] It should also be understood that when the device 2000 is a chip, the chip includes a transceiver unit and a processing unit. The transceiver unit can be an input / output circuit or a communication interface; the processing unit can be a processor, microprocessor, or integrated circuit integrated on the chip.

[0433] The transceiver unit 2010 is used to implement the signal transmission and reception operations of the device 2000, and the processing unit 2020 is used to implement the signal processing operations of the device 2000.

[0434] Optionally, the device 2000 further includes a storage unit 2030 for storing instructions.

[0435] Figure 12 This is a schematic block diagram of the device 3000 provided in an embodiment of this application. Figure 12 As shown, the device 3000 includes at least one processor 3010. The processor 3010 is coupled to a memory and is used to execute instructions stored in the memory to perform... Figure 3 , Figure 5 , Figure 9 or Figure 10 The method described herein. Optionally, the device 3000 further includes a transceiver 3020, the processor 3010 being coupled to a memory for executing instructions stored in the memory to control the transceiver 3020 to transmit and / or receive signals. For example, the processor 3010 may control the transceiver 3020 to transmit and / or receive first reference SRS resource information. Optionally, the device 3000 further includes a memory 3030 for storing instructions.

[0436] It should be understood that the processor 3010 and memory 3030 described above can be combined into a single processing device, with the processor 3010 executing the program code stored in the memory 3030 to achieve the aforementioned functions. In specific implementations, the memory 3030 can be integrated into the processor 3010 or independent of the processor 3010.

[0437] It should also be understood that transceiver 3020 may include a receiver (or receiver unit) and a transmitter (or transmitter unit). Transceiver 3020 may further include an antenna, and the number of antennas may be one or more. Transceiver 3020 may also be a communication interface or interface circuit.

[0438] When the device 3000 is a chip, the chip includes a transceiver unit and a processing unit. The transceiver unit can be an input / output circuit or a communication interface; the processing unit can be a processor, microprocessor, or integrated circuit integrated on the chip.

[0439] Figure 13 This is a schematic diagram of a chip system according to an embodiment of this application. The chip system here can also be a system composed of circuits. Figure 13 The illustrated chip system 4000 includes: logic circuitry 4010 and an input / output interface 4020. The logic circuitry is coupled to the input interface to transmit data (e.g., first information) for execution. Figure 3 , Figure 5 , Figure 9 or Figure 10 The method described.

[0440] This application also provides a processing apparatus, including a processor and an interface. The processor can be used to execute the methods described in the above method embodiments.

[0441] It should be understood that the aforementioned processing device can be a chip. For example, the processing device can be a field-programmable gate array (FPGA), an application-specific integrated circuit (ASIC), a system-on-chip (SoC), a central processor unit (CPU), a network processor (NP), a digital signal processor (DSP), a microcontroller unit (MCU), a programmable logic device (PLD), or other integrated chips.

[0442] In implementation, each step of the above method can be completed by integrated logic circuits in the processor's hardware or by instructions in software. The steps of the method disclosed in the embodiments of this application can be directly implemented by a hardware processor, or by a combination of hardware and software modules in the processor. The software modules can reside in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. This storage medium is located in memory, and the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above method. To avoid repetition, detailed descriptions are omitted here.

[0443] It should be noted that the processor in the embodiments of this application can be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method embodiments can be completed by integrated logic circuits in the processor's hardware or by instructions in software form. The processor described above can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor, etc.

[0444] It is understood that the memory in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache.

[0445] According to the method provided in the embodiments of this application, this application also provides a computer program product, which includes: computer program code, which, when run on a computer, causes the computer to execute... Figure 3 , Figure 5 , Figure 9 or Figure 10 The method of the illustrated embodiment.

[0446] According to the method provided in the embodiments of this application, this application also provides a computer-readable medium storing program code, which, when run on a computer, causes the computer to perform... Figure 3 , Figure 5 , Figure 9 or Figure 10 The method of the illustrated embodiment.

[0447] According to the method provided in the embodiments of this application, this application also provides a system, which includes the aforementioned network device, positioning management device and terminal device.

[0448] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer instructions can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., high-density digital video disc (DVD)), or a semiconductor medium (e.g., solid-state disk (SSD)).

[0449] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0450] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A resource allocation method, characterized in that, include: The network device receives the first reference detection reference signal (SRS) resource information from the location management device; The network device configures a second SRS resource for the terminal device to be located based on the first reference SRS resource information. There is at least one overlapping time domain unit between the second SRS resource and the first SRS resource. The first reference SRS resource information is related to the first SRS resource.

2. The method according to claim 1, characterized in that, The first reference SRS resource information includes one or more of the following: starting symbol position, number of occupied symbols, transmission period and offset, transmission comb and offset, cyclic shift, frequency domain position and offset, and frequency hopping configuration.

3. The method according to claim 2, characterized in that, The first reference SRS resource information includes at least: starting symbol position, number of occupied symbols, transmission period, and offset.

4. The method according to claim 1, wherein the first reference SRS resource information includes the identification information of the first SRS resource.

5. The method according to any one of claims 1 to 4, wherein the first reference SRS resource information is related to the SRS resources of at least one reference terminal device.

6. The method according to claim 5, characterized in that, The first reference SRS resource information is related to the SRS resource of the first reference terminal device. The first reference SRS resource information is the SRS resource information of the first reference terminal device, or the first reference SRS resource information is the information obtained based on the SRS resource of the first reference terminal device.

7. The method according to claim 5, characterized in that, The first reference SRS resource information is related to the SRS resources of at least two reference terminal devices. The first reference SRS resource information is the information of the SRS resources of the at least two reference terminal devices, or the first reference SRS resource information is the information obtained based on the SRS resources of the at least two reference terminal devices.

8. The method according to any one of claims 1 to 7, characterized in that, The network device receives first reference SRS resource information from the location management device, including: The network device receives multiple reference SRS resource information from the location management device and priority information of each reference SRS resource information in the multiple reference SRS resource information, wherein the multiple reference SRS resource information includes the first reference SRS resource information; The method further includes: The network device sends information about the second SRS resource to the location management device.

9. The method according to any one of claims 1 to 8, characterized in that, The method further includes: The network device receives first indication information from the positioning management device. The first indication information is used to indicate that a second SRS resource that completely overlaps with the first SRS resource in the time domain is configured for the terminal device to be located, or to indicate that a second SRS resource that partially overlaps with the first SRS resource in the time domain is configured for the terminal device to be located. The first reference SRS resource information is related to the first SRS resource. The network device configures a second SRS resource for the terminal device to be located based on the first reference SRS resource information, including: The network device configures the second SRS resource for the terminal device to be located based on the first reference SRS resource information and the first indication information.

10. The method according to any one of claims 1 to 9, characterized in that, The method further includes: The network device receives second indication information from the positioning management device, the second indication information being used to indicate the offset between the first SRS resource and the second SRS resource, the first reference SRS resource information being related to the first SRS resource; The network device configures a second SRS resource for the terminal device to be located based on the first reference SRS resource information, including: The network device configures the second SRS resource for the terminal device to be located based on the first reference SRS resource information and the second indication information.

11. The method according to any one of claims 1 to 10, characterized in that, The method further includes: The network device receives third indication information from the location management device, the third indication information being used to indicate that the first SRS resource is a reference resource, and the first reference SRS resource information is related to the first SRS resource.

12. The method according to any one of claims 1 to 11, characterized in that, The network device receives first reference SRS resource information from the location management device, including: The network device receives reference resource information from the positioning management device, the reference resource information including the first reference SRS resource information.

13. A resource allocation method, characterized in that, include: The positioning management device sends a first reference detection reference signal (SRS) resource information to the network device. The first reference SRS resource information is used by the network device to configure a second SRS resource for the terminal device to be located. The positioning management device receives information about the second SRS resource from the network device. There is at least one overlapping time domain unit between the second SRS resource and the first SRS resource. The first reference SRS resource information is related to the first SRS resource.

14. The method according to claim 13, characterized in that, The first reference SRS resource information includes one or more of the following: starting symbol position, number of occupied symbols, transmission period and offset, transmission comb and offset, cyclic shift, frequency domain position and offset, or frequency hopping configuration.

15. The method according to claim 14, characterized in that, The first reference SRS resource information includes at least: starting symbol position, number of occupied symbols, transmission period, and offset.

16. The method according to claim 13, wherein the first reference SRS resource information includes the identification information of the first SRS resource.

17. The method according to any one of claims 13 to 16, wherein the first reference SRS resource information is associated with the SRS resources of at least one reference terminal device.

18. The method according to claim 17, characterized in that, The first reference SRS resource information is related to the SRS resource of the first reference terminal device. The first reference SRS resource information is the SRS resource information of the first reference terminal device, or the first reference SRS resource information is the information obtained based on the SRS resource of the first reference terminal device.

19. The method according to claim 17, characterized in that, The first reference SRS resource information is related to the SRS resources of at least two reference terminal devices. The first reference SRS resource information is the information of the SRS resources of the at least two reference terminal devices, or the first reference SRS resource information is the information obtained based on the SRS resources of the at least two reference terminal devices.

20. The method according to any one of claims 13 to 19, characterized in that, The positioning management device sends first reference SRS resource information to the network device, including: The location management device sends multiple reference SRS resource information and priority information of each reference SRS resource information to the network device. The multiple reference SRS resource information includes the first reference SRS resource information.

21. The method according to any one of claims 13 to 20, characterized in that, The method further includes: The positioning management device sends a first indication information to the network device. The first indication information is used to indicate that a second SRS resource that completely overlaps with the first SRS resource in the time domain is configured for the terminal device to be positioned, or to indicate that a second SRS resource that partially overlaps with the first SRS resource in the time domain is configured for the terminal device to be positioned. The first reference SRS resource information is related to the first SRS resource.

22. The method according to any one of claims 13 to 21, characterized in that, The method further includes: The positioning management device sends a second indication information to the network device. The second indication information is used to indicate the offset between the first SRS resource and the second SRS resource. The first reference SRS resource information is related to the first SRS resource.

23. The method according to any one of claims 13 to 22, characterized in that, The method further includes: The positioning management device sends a third indication information to the network device. The third indication information is used to indicate that the first SRS resource is a reference resource, and the first reference SRS resource information is related to the first SRS resource.

24. The method according to any one of claims 13 to 23, characterized in that, The positioning management device sends first reference SRS resource information to the network device, including: The positioning management device sends reference resource information to the network device, and the reference resource information includes the first reference SRS resource information.

25. A communication device, characterized in that, It includes at least one processor, the at least one processor being coupled to a memory, reading and executing instructions in the memory to implement the method as described in any one of claims 1 to 12.

26. The communication device according to claim 25, characterized in that, It also includes the memory.

27. A communication device, characterized in that, It includes at least one processor, the at least one processor being coupled to a memory, reading and executing instructions in the memory to implement the method as described in any one of claims 13 to 24.

28. The communication device according to claim 27, characterized in that, It also includes the memory.

29. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, which, when executed, causes the method as described in any one of claims 1 to 24 to be performed.

30. A system, characterized in that, It includes the apparatus as described in claim 25 or 26, and also includes the apparatus as described in claim 27 or 28.

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