Positioning reference signal transmission method and device, network side equipment and storage medium

Abstract

The invention discloses a positioning reference signal transmission method and device, network side equipment and a storage medium, and belongs to the field of communication, and the positioning reference signal transmission method in the embodiment of the invention comprises the following steps: a terminal aggregates and transmits positioning reference signals on N cells; wherein N is an integer greater than 1, the N cells at least comprise an auxiliary cell, and the auxiliary cell satisfies at least one of the following items: the configuration information of the auxiliary cell comprises the configuration information of the positioning reference signal, and at least one of a physical uplink shared channel (PUSCH) and a physical uplink control channel (PUCCH) is not configured; the auxiliary cell only comprises the transmission of the positioning reference signal; the secondary cell is configured to be used for transmitting the positioning reference signal.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to a positioning reference signal transmission method, apparatus, network side equipment and storage medium. Background Art

[0002] At present, in the fifth generation mobile communication (5G) mobile communication system, the uplink introduces the sounding reference signal (also called the uplink positioning reference signal or the uplink monitoring reference signal) (SRS), and the downlink introduces the downlink positioning reference signal (PRS) for positioning. The network side or the terminal can determine the location information of the terminal by transmitting the above signals.

[0003] Taking uplink SRS signal transmission as an example, the maximum supported bandwidth of a carrier in the 5G low-mid frequency band (FR1) is 100M, and the maximum supported bandwidth in the millimeter wave band (FR2) is 400M, and SRS can only be sent on the active bandwidth part (BWP), where the bandwidth of the BWP is smaller than the bandwidth of the carrier, such as 20M, 40M. Figure 1 As shown, there are at most two BWPs (i.e., BWP0 and BWP1) on one carrier, but only one BWP is activated. It can be seen that the signal bandwidth of SRS is very small when it is transmitted on one carrier.

[0004] It can be seen that in the prior art, when positioning is performed based on a communication reference signal, sufficient positioning accuracy cannot be obtained because the bandwidth of a single carrier is too small. Summary of the invention

[0005] The embodiments of the present application provide a positioning reference signal transmission method, apparatus, network-side equipment and storage medium, which can solve the problem of low positioning accuracy due to the small single carrier bandwidth when positioning is performed based on SRS in the prior art.

[0006] In a first aspect, a positioning reference signal transmission method is provided, the method comprising:

[0007] The terminal aggregates and transmits positioning reference signals on N cells;

[0008] Wherein, N is an integer greater than 1, and the N cells include at least a secondary cell, and the secondary cell satisfies at least one of the following:

[0009] The configuration information of the secondary cell includes the configuration information of the positioning reference signal, and at least one of a physical uplink shared channel PUSCH and a physical uplink control channel PUCCH is not configured;

[0010] The secondary cell only includes transmission of the positioning reference signal;

[0011] The secondary cell is configured as a secondary cell for transmitting the positioning reference signal.

[0012] In a second aspect, a positioning reference signal transmission method is provided, the method comprising:

[0013] The network side device determines N cells for aggregate transmission of positioning reference signals;

[0014] The network side device configures the N cells to the terminal;

[0015] Wherein, N is an integer greater than 1, and the N cells include at least a secondary cell, and the secondary cell satisfies at least one of the following:

[0016] The configuration information of the secondary cell includes the configuration information of the positioning reference signal, and at least one of a physical uplink shared channel PUSCH and a physical uplink control channel PUCCH is not configured;

[0017] The secondary cell only includes transmission of the positioning reference signal;

[0018] The secondary cell is configured as a secondary cell for transmitting the positioning reference signal.

[0019] In a third aspect, a positioning reference signal transmission device is provided, which is applied to a terminal, and the device includes:

[0020] A transmission module, used for aggregating and transmitting positioning reference signals on N cells;

[0021] Wherein, N is an integer greater than 1, and the N cells include at least a secondary cell, and the secondary cell satisfies at least one of the following:

[0022] The configuration information of the secondary cell includes the configuration information of the positioning reference signal, and at least one of a physical uplink shared channel PUSCH and a physical uplink control channel PUCCH is not configured;

[0023] The secondary cell only includes transmission of the positioning reference signal;

[0024] The secondary cell is configured as a secondary cell for transmitting the positioning reference signal.

[0025] In a fourth aspect, a positioning reference signal transmission device is provided, which is applied to a network side device, and the device includes:

[0026] A first determination module, used to determine N cells for positioning reference signal aggregate transmission;

[0027] A configuration module, configured to configure the N cells to the terminal;

[0028] Wherein, N is an integer greater than 1, and the N cells include at least a secondary cell, and the secondary cell satisfies at least one of the following:

[0029] The configuration information of the secondary cell includes the configuration information of the positioning reference signal, and at least one of a physical uplink shared channel PUSCH and a physical uplink control channel PUCCH is not configured;

[0030] The secondary cell only includes transmission of the positioning reference signal;

[0031] The secondary cell is configured as a secondary cell for transmitting the positioning reference signal.

[0032] In a fifth aspect, a terminal is provided, comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0033] In a sixth aspect, a terminal is provided, including a processor and a communication interface, wherein the communication interface is used to aggregate and transmit positioning reference signals on N cells;

[0034] Wherein, N is an integer greater than 1, and the N cells include at least a secondary cell, and the secondary cell satisfies at least one of the following:

[0035] The configuration information of the secondary cell includes the configuration information of the positioning reference signal, and at least one of a physical uplink shared channel PUSCH and a physical uplink control channel PUCCH is not configured;

[0036] The secondary cell only includes transmission of the positioning reference signal;

[0037] The secondary cell is configured as a secondary cell for transmitting the positioning reference signal.

[0038] In the seventh aspect, a network side device is provided, which terminal includes a processor and a memory, the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the second aspect are implemented.

[0039] In an eighth aspect, a network side device is provided, including a processor and a communication interface, wherein the processor is used to determine N cells for positioning reference signal aggregation transmission;

[0040] The communication interface is used to configure the N cells to the terminal;

[0041] Wherein, N is an integer greater than 1, and the N cells include at least a secondary cell, and the secondary cell satisfies at least one of the following:

[0042] The configuration information of the secondary cell includes the configuration information of the positioning reference signal, and at least one of a physical uplink shared channel PUSCH and a physical uplink control channel PUCCH is not configured;

[0043] The secondary cell only includes transmission of the positioning reference signal;

[0044] The secondary cell is configured as a secondary cell for transmitting the positioning reference signal.

[0045] In a ninth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect or the second aspect are implemented.

[0046] In the tenth aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the steps of the method described in the first aspect or the second aspect.

[0047] In the eleventh aspect, a computer program / program product is provided, wherein the computer program / program product is stored in a storage medium, and the program / program product is executed by at least one processor to implement the steps of the method described in the first aspect or the second aspect.

[0048] In an embodiment of the present application, the terminal can aggregate and transmit positioning reference signals on N cells, where N is an integer greater than 1, and the N cells include at least a secondary cell, and the secondary cell satisfies at least one of the following:

[0049] The secondary cell includes configuration information of a positioning reference signal, and is not configured with at least one of a physical uplink shared channel PUSCH and a physical uplink control channel PUCCH;

[0050] The secondary cell only includes the transmission of positioning reference signals;

[0051] The secondary cell is configured as a secondary cell for transmitting a positioning reference signal.

[0052] It can be seen that in the embodiment of the present application, the N cells include at least a secondary cell, and the secondary cell has relevant configurations of the positioning reference signal. In this way, the positioning reference signal can be aggregated and transmitted on the N cells, thereby increasing the transmission bandwidth of the positioning reference signal and further improving the positioning accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 This is a schematic diagram of BWP on a carrier in the related art.

[0054] Figure 2 is a block diagram of a wireless communication system to which the embodiments of the present application can be applied;

[0055] Figure 3 is a flowchart of a positioning reference signal transmission method in an embodiment of the present application;

[0056] Figure 4 It is one of the schematic diagrams of the target MAC CE in the embodiment of the present application;

[0057] Figure 5 This is the second schematic diagram of the target MAC CE in the embodiment of the present application;

[0058] Figure 6 is a schematic diagram of time domain information of a positioning reference signal in an embodiment of the present application;

[0059] Figure 7 is a flowchart of another positioning reference signal transmission method in an embodiment of the present application;

[0060] Figure 8 is a structural block diagram of a positioning reference signal transmission device in an embodiment of the present application;

[0061] Fig. 9 is a structural block diagram of another positioning reference signal transmission device in an embodiment of the present application;

[0062] Fig.10 is a structural block diagram of a communication device in an embodiment of the present application;

[0063] Fig.11 is a structural block diagram of a terminal in an embodiment of the present application;

[0064] Fig.12 is a structural block diagram of a network side device in an embodiment of the present application;

[0065] Fig.13 It is a structural block diagram of another network side device in an embodiment of the present application. DETAILED DESCRIPTION

[0066] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0067] The terms "first", "second", etc. of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of one type, and the number of objects is not limited, for example, the first object can be one or more. In addition, "or" in the present application represents at least one of the connected objects. For example, "A or B" covers three schemes, namely, Scheme 1: including A but not including B; Scheme 2: including B but not including A; Scheme 3: including both A and B. The character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0068] The term "indication" in this application can be either a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, operations to be performed, or request results in the sent indication; an indirect indication can be understood as the receiver determining the corresponding information according to the indication sent by the sender, or making a judgment and determining the operation to be performed or the request result according to the judgment result.

[0069] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following descriptions, but these technologies can also be applied to systems other than NR systems, such as the 6th generation (6 thGeneration, 6G) communication system.

[0070] Figure 2 A block diagram of a wireless communication system applicable to an embodiment of the present application is shown. The wireless communication system includes a terminal 11 and a network side device 12. Among them, the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (Ultra-mobile Personal Computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), an augmented reality (Augmented Reality, AR), a virtual reality (Virtual Reality, VR) device, a robot, a wearable device (Wearable Device), an aircraft (flight vehicle), a vehicle-mounted device (Vehicle User Equipment, VUE), a ship-mounted device, a pedestrian terminal (Pedestrian User Equipment, PUE), a smart home (home appliances with wireless communication functions, such as refrigerators, televisions, washing machines or furniture, etc.), a game console, a personal computer (Personal Computer, PC), a teller machine or a self-service machine and other terminal side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application.

[0071] The network side device 12 may include an access network device or a core network device, wherein the access network device may also be referred to as a radio access network (RAN) device, a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (WLAN) access point (AS) or a wireless fidelity (WiFi) node, etc. Among them, the base station may be referred to as a Node B (NodeB, NB), an evolved Node B (Evolved Node B, eNB), a next generation Node B (the next generation Node B, gNB), a New Radio Node B (New Radio Node B, NR Node B), an access point, a Relay Base Station (RBS), a Serving Base Station (SBS), a Base Transceiver Station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a Basic Service Set (Basic Service Set, BSS), an Extended Service Set (Extended Service Set, ESS), a home Node B (home evolved Node B, HNB), a home evolved Node B (home evolved Node B), a Transmission Reception Point (Transmission Reception Point, TRP) or other appropriate terms in the relevant field. As long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiments of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0072] The core network device may include, but is not limited to, at least one of the following: a core network node, a core network function, a mobility management entity (Mobility Management Entity, MME), an access mobility management function (Access and Mobility Management Function, AMF), a session management function (Session Management Function, SMF), a user plane function (User Plane Function, UPF), a policy control function (Policy Control Function, PCF), a policy and charging rules function unit (Policy and Charging Rules Function, PCRF), an edge application service discovery function (Edge Application Server Discovery Function, EASDF), a unified data management (Unified Data Management, UDM), a unified data storage (Unified Data Repository, UDR), a home user server (Home Subscriber Server, HSS), a centralized network configuration (CNC), a network storage function (Network Repository Function, NRF), a network exposure function (Network Exposure Function, NEF), a local NEF (Local NEF, or L-NEF), and a binding support function (Binding Support Function, BSF), application function (Application Function, AF), etc. It should be noted that in the embodiment of the present application, only the core network device in the NR system is introduced as an example, and the specific type of the core network device is not limited.But not limited to at least one of the following: core network node, core network function, mobility management entity (Mobility Management Entity, MME), access mobility management function (Access and Mobility Management Function, AMF), session management function (Session Management Function, SMF), user plane function (User Plane Function, UPF), policy control function (Policy Control Function, PCF), policy and charging rules function unit (Policy and Charging Rules Function, PCRF), edge application service discovery function (Edge Application Server Discovery Function, EASDF), unified data management (Unified Data Management, UDM), unified data storage (Unified Data Repository, UDR), home user server (Home Subscriber Server, HSS), centralized network configuration (CNC), network storage function (Network Repository Function, NRF), network exposure function (Network Exposure Function, NEF), local NEF (Local NEF, or L-NEF), binding support function (Binding Support Function, BSF), application function (Application Function, AF), etc. It should be noted that in the embodiments of the present application, only the core network device in the NR system is introduced as an example, and the specific type of the core network device is not limited.

[0073] The following describes in detail the positioning reference signal transmission method provided in the embodiment of the present application through some embodiments and their application scenarios in combination with the accompanying drawings.

[0074] In a first aspect, an embodiment of the present application provides a positioning reference signal transmission method, such as Figure 3 As shown, the method comprises the following steps:

[0075] Step 301: The terminal aggregates and transmits positioning reference signals on N cells.

[0076] Aggregate transmission can be understood as carrier aggregation. In general, carrier aggregation means that a terminal can send and receive data simultaneously on two or more carriers, rather than on the activated BWP of only one carrier as in a non-aggregate scenario.

[0077] That is, in an embodiment of the present application, aggregate transmission refers to transmitting positioning reference signals on N cells at the same time, thereby increasing the transmission bandwidth of the positioning reference signal. It should be noted that the transmission positioning reference signal here can be sending an uplink positioning reference signal (i.e., SRS) or receiving a downlink positioning reference signal (i.e., PRS). Among them, in the case of receiving a downlink reference signal, the N cells can also be understood as N positioning frequency layers, and optionally, the configuration information of the positioning frequency layer includes the identification information of the cell, that is, the positioning frequency layer is associated with the cell. Further, the secondary cell is configured as a secondary cell for transmitting the positioning reference signal, which can be understood as that the configuration information of the positioning frequency layer includes the configuration information of the downlink positioning reference signal.

[0078] In one embodiment, the N cells belong to a frequency band, that is, the carrier aggregation is the carrier aggregation of multiple carriers in the band. Usually, a band or a TAG has only one primary cell, so the N cells may include N-1 secondary cells.

[0079] In one embodiment, N is an integer greater than 1, and the N cells include at least a secondary cell, that is, the N cells may include a primary cell and one or more secondary cells, or the N cells may include one or more secondary cells.

[0080] The one or more secondary cells satisfy at least one of the following items A-1 to A-3:

[0081] Item A-1: ​​the configuration information of the secondary cell includes the configuration information of the positioning reference signal, and at least one of a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) and a physical uplink control channel (Physical Uplink Control Channel, PUCCH) is not configured;

[0082] Item A-2: the secondary cell only includes transmission of the positioning reference signal;

[0083] Item A-3: The secondary cell is configured as a secondary cell for transmitting the positioning reference signal.

[0084] It can be known from A-1 to A-3 that the N cells may include at least one of a secondary cell used only for transmitting a positioning reference signal and a secondary cell used for transmitting a positioning reference signal and other signals except the positioning reference signal.

[0085] In a communication system, the number of secondary cells for uplink aggregated transmission data is often relatively small. In this case, the secondary cell used only for transmitting the positioning reference signal can be different from the conventionally activated secondary cell, so as to achieve the purpose of terminal power saving and transmission of large bandwidth (that is, aggregated) positioning reference signals.

[0086] It can be seen that in the embodiment of the present application, the N cells include at least a secondary cell, and the secondary cell has a related configuration of the positioning reference signal, so that the positioning reference signal can be aggregated and transmitted on the N cells, thereby increasing the transmission bandwidth of the positioning reference signal. Among them, the positioning accuracy increases with the increase of the signal bandwidth, therefore, in the embodiment of the present application, the positioning accuracy can be improved by aggregating and transmitting the positioning reference signal on multiple cells.

[0087] It should also be noted that in the prior art, SRS can only be sent in activated cells and activated BWPs, so when SRS is transmitted on multiple cells, these cells are required to be in an activated state. Among them, the activated cell needs to perform all the behaviors of the activated cells, such as PDCCH monitoring, etc., but if the activated cell is a secondary cell used only for transmitting positioning reference signals, there is often no data scheduling on these cells, thereby wasting terminal power.

[0088] In an embodiment of the present application, among the secondary cells participating in the aggregated transmission of the positioning reference signal, at least some of the secondary cells can be used only to transmit the positioning reference signal without performing other actions besides transmitting the positioning reference signal, so the terminal can save some power on these secondary cells.

[0089] It can be seen that when the positioning reference signal is aggregated and transmitted on N cells, if at least some of the secondary cells in the N cells are only used to transmit the positioning reference signal, the terminal power can be saved on the basis of improving the positioning accuracy.

[0090] Optionally, when transmitting the positioning reference signal, the secondary cell is in an activated state. Here, the secondary cell can be activated before the positioning reference signal needs to be transmitted, or the secondary cell can be activated when the positioning reference signal needs to be transmitted. That is, after the secondary cell enters the activated state, the positioning reference signal can be transmitted. It can also be understood here that: after the secondary cell is deactivated, the positioning reference signal cannot be transmitted.

[0091] It should be noted that if the RRC connection of the terminal is in an inactive state, then when the secondary cell is in a deactivated state, the terminal may transmit a positioning reference signal on the secondary cell.

[0092] Optionally, the method further comprises:

[0093] The terminal receives first information, where the first information is used to indicate activation or deactivation of the secondary cell;

[0094] The terminal activates or deactivates the secondary cell according to the first information.

[0095] It can be seen that in the embodiment of the present application, the terminal can activate or deactivate the secondary cell according to the first information sent by the network side device. For example, when the first information indicates to activate the secondary cell, the terminal can activate the secondary cell according to the instruction of the first information, so that the positioning reference signal can be transmitted on the secondary cell.

[0096] Optionally, the first information includes at least one of the following items B-1 to B-4:

[0097] Item B-1: Media Access Control Element (MAC CE) used to activate a secondary cell; optionally, the secondary cell activated by the MAC CE is a secondary cell configured for transmitting a positioning reference signal; it can be understood that the MAC CE used to activate the secondary cell may also be an enhanced MAC CE.

[0098] Item B-2: MAC CE for deactivating a secondary cell; optionally, the secondary cell for which the MAC CE is used to deactivate is a secondary cell configured for transmitting a positioning reference signal; it can be understood that the MAC CE for deactivating a secondary cell may also be an enhanced MAC CE.

[0099] Item B-3: Target MAC CE, wherein the target MAC CE is used to activate the positioning reference signal, deactivate the positioning reference signal, and configure at least one of the positioning reference signal; here, when the target MAC CE is used to configure the positioning reference signal, for example, it can be used to configure the spatial relationship information of the positioning reference signal. It should be noted that when the target MAC CE is used to activate the positioning reference signal, if the positioning reference signal on a certain secondary cell is activated, the secondary cell is considered to be activated at the same time; when the target MAC CE is used to deactivate the positioning reference signal, if the positioning reference signal on a certain secondary cell is deactivated, the secondary cell is considered to be deactivated at the same time.

[0100] Item B-4: Downlink Control Information (DCI), the downlink control information includes first indication information, the first indication information is used to indicate at least one of activating the secondary cell, deactivating the secondary cell, activating the positioning reference signal, and deactivating the positioning reference signal. It should be noted that when the first indication information is used to activate the positioning reference signal, if the positioning reference signal on a certain secondary cell is activated, the secondary cell is considered to be activated at the same time; when the first indication information is used to deactivate the positioning reference signal, if the positioning reference signal on a certain secondary cell is deactivated, the secondary cell is considered to be deactivated at the same time.

[0101] Exemplarily, one bit is added to the DCI to indicate whether the positioning reference signal is transmitted in an aggregated manner; for example, in DCI modes (format) 0_1, 0_2, 1_1, 1_2, and 2_3, one bit can be added to the DCI to indicate whether the positioning reference signal is transmitted in an aggregated manner; and / or, secondary cell identification information is added to the DCI to indicate the aggregated transmission of the positioning reference signal. For example, the identification information here includes the identification information of cell 1 and cell 2, which indicates the activation of the aggregated transmission of the positioning reference signals of cells 1 and 2.

[0102] It should also be noted that if the secondary cell is configured as a secondary cell for transmitting a positioning reference signal, the terminal may default to the secondary cell being activated or always consider the secondary cell to be activated at least when transmitting the positioning reference signal.

[0103] Optionally, in one embodiment, the terminal may determine whether the secondary cell is activated or deactivated based on the configuration information of the positioning reference signal of the secondary cell, that is, if the secondary cell sends a positioning reference signal at time T1, the terminal considers the cell as activated starting from time T1-x. Further, if the secondary cell stops sending the positioning reference signal at time T1+X1, the secondary cell deactivates the secondary cell at time T1+X1+X2.

[0104] In another embodiment, if the activation time of the secondary cell is related to the transmission time of the positioning reference signal, normal cell activation operations can be performed within the activation time of the secondary cell, such as PDCCH monitoring, PHR reporting, etc. This is because the activation time is very short, and even if additional operations are performed, too much power will not be lost.

[0105] Optionally, the target MAC CE carries at least one of the following C-1 to C-7:

[0106] Item C-1: aggregation indication information, where the aggregation indication information is used to indicate whether to aggregate and transmit positioning reference signals; for example, when the aggregation indication information is "AG", it indicates that the positioning reference signals are aggregated and transmitted;

[0107] Item C-2: identification information of the cell group to which the N cells belong; that is, if the N cells are divided into a cell group, the target MAC CE may also carry identification information of the cell group; for example, if the target MAC CE carries identification information of a cell group, it indicates activation or deactivation of a cell in the cell group identified by the identification information;

[0108] Item C-3: identification information of the N cells (e.g., cell identifiers); for example, if the target MAC CE carries identification information of N cells, it indicates activation or deactivation of the cells identified by the N identification information;

[0109] Item C-4: second indication information, where the second indication information is used to indicate the activation status of the N cells;

[0110] Item C-5: identification information of a bandwidth part (BWP); here, the identification information of the BWP is used to indicate the BWP in the activated or deactivated cell;

[0111] Item C-6: Activation information of positioning reference signal;

[0112] Item C-7: Request information of positioning reference signal. Here, the request information of positioning reference signal is used to indicate an activated positioning reference signal. For example, if the request information of positioning reference signal is SRS request, it is used to indicate an activated SRS.

[0113] Exemplarily, the target MAC CE may be as follows: Figure 4 As shown, among which, Figure 4 In the first reserved bit 401 and the second reserved bit 402, one bit can be used to indicate whether to aggregate the transmission positioning reference signal. For example, if the first reserved bit 401 is "AG", it means that the positioning reference signal is aggregated and transmitted. In this case, Figure 4 The "SRS Resource Set's Cell ID" and "SRS Resource Set's BWP ID" in the above table can be replaced by the identification information of the cell performing aggregate transmission; or, Figure 4 The first reserved bit 401 and the second reserved bit 402 in the 401 can indicate that the two cells are activated or deactivated respectively. If activated, it is necessary to aggregate and transmit the positioning reference signal on the activated cell. It should be noted that whether the above cells aggregate and transmit the positioning reference signal can be configured through high-layer signaling or RRC signaling.

[0114] Exemplarily, the target MAC CE may also be as follows Figure 5 As shown, in Figure 5 The third reserved bit 501 in the POSITION_A_SRC may be used to indicate whether to aggregate the transmission positioning reference signal. For example, if the third reserved bit 501 is "AG", it indicates that the positioning reference signal is aggregated for transmission. In this case, Figure 5 The positions of "Positioning SRS Resource Set's Cell ID" and "Positioning SRS Resource Set's BWP ID" can be replaced with the identification information of the cell performing aggregate transmission;

[0115] Or, in Figure 5 The third reserved bit 501 in the 400 bits may be used to indicate whether to aggregate the transmission positioning reference signal. For example, if the third reserved bit 501 is “AG”, it indicates that the positioning reference signal is aggregated for transmission. In this case, Figure 5 The position of "Positioning SRS Resource Set's Cell ID" can be used to indicate the activated cell and the aggregated set (i.e., the aggregated SRS resource set); if 2 bits are used to indicate the set, it means that at most 4 aggregated sets are associated, that is, the values ​​of these 2 bits can be 00, 01, 10, 11, wherein these four values ​​can indicate that the above-mentioned 4 aggregated sets are mapped to 00, 01, 10, 11 in the order of set ID from small to large. Among them, the remaining 2 bits are used to indicate the activated cell.

[0116] It should be noted that the aggregated set means that the positioning reference signals on these resource sets are aggregated for transmission.

[0117] also, Figure 4 The descriptions of the fields in are as follows:

[0118] The A / D field indicates activation or deactivation, 1 for activation;

[0119] R represents a reserved bit;

[0120] The SRS Resource Set's Cell ID field indicates the identification information of the serving cell and has a length of 5 bits.

[0121] The SRS Resource Set's BWP ID field indicates the identification information of the BWP and has a length of 2 bits.

[0122] The C field indicates whether there is an octet containing the identification information field of the serving cell and the identification information field of the BWP. If this field is set to 1, the identification information field of the serving cell and the identification information field of the BWP exist, otherwise they do not exist;

[0123] The SUL field indicates whether it is a normal uplink (NUL) carrier or a supplementary uplink (SUL) carrier, where 1 indicates a SUL carrier and 0 indicates a NUL carrier;

[0124] The SP SRS Resource Set ID field indicates the SRS resource set ID, which is 4 bits long.

[0125] F i The field indicates the type of spatial relation reference signal. If the field is 1, it means non-zero power (NZP) CSI-RS. If the field is 0, it means the spatial relation reference signal is SSB, that is, F i The spatial relationship reference signal is used to indicate the i-th SRS resource in the SRS resource set, where i is an integer from 0 to M-1.

[0126] Resource ID i The field is used to indicate the identification information of the spatial relationship of the corresponding SRS. i is 0, and ResourceID i The first bit of the field is 1, and the remaining bits are the specified SSB index; if F i is 0, and Resource ID i The first bit of the field is 0, and the remaining bits are the specified SRS resource ID. The length of this field is 7 bits.

[0127] Resource Serving Cell ID i The field indicates the serving cell ID of the spatial relation reference signal, with a length of 5 bits;

[0128] Resource BWP ID i This field indicates the BWP ID of the spatial relationship reference signal and has a length of 2 bits.

[0129] Figure 5 The descriptions of the fields in are as follows:

[0130] The A / D field indicates activation or deactivation, 1 for activation;

[0131] R represents a reserved bit;

[0132] The Positioning SRS Resource Set's Cell ID field indicates the identification information of the serving cell and has a length of 5 bits.

[0133] The Positioning SRS Resource Set's BWP ID field indicates the identification information of the BWP and has a length of 2 bits.

[0134] The C field indicates whether there is an octet containing the identification information field of the serving cell and the identification information field of the BWP. If this field is set to 1, the identification information field of the serving cell and the identification information field of the BWP exist, otherwise they do not exist;

[0135] The SUL field indicates whether it is a NUL carrier or a SUL carrier, where a 1 indicates a SUL carrier and a 0 indicates a NUL;

[0136] The Positoining SRS Resource Set ID field indicates the SRS resource set ID, which is 4 bits long.

[0137] Spatial Relation for Resource ID i Field indicates resource ID i The spatial relationship of, wherein this field appears only when the A / D field is set to 1, the length of this field is determined by the F and C fields, and i is an integer from 0 to M-1;

[0138] The S field indicates whether the spatial relationship field of the positioning SRS resource IDi in the positioning SRS resource set exists; if this field is set to 1, the "spatial relationship of resource IDi" field exists; otherwise, it does not exist.

[0139] Optionally, the downlink control information (Downlink Control Information, DCI) carries the time domain information of the positioning reference signal. The time domain information can be used to indicate the (time slot) slot number of the actual offset of the transmission position of the positioning reference signal relative to the reference position, or can also be used to indicate the transmission position of the positioning reference signal, such as Figure 6 shown.

[0140] Optionally, the RRC may also configure whether the secondary cell is a secondary cell that only includes the transmission of the positioning reference signal, or whether the secondary cell is a secondary cell configured to transmit the positioning reference signal. Further, the RRC may also indicate that the activation time of the secondary cell is related to the transmission time of the positioning reference signal configured by the RRC.

[0141] Optionally, the method further comprises:

[0142] When the secondary cell is in an activated state, the terminal performs at least one of the following D-1 to D-6:

[0143] Item D-1: not reporting the channel state information (CSI) of the secondary cell;

[0144] Item D-2: not transmitting an uplink shared channel (UL-SCH) on the secondary cell;

[0145] Item D-3: not transmitting a Physical Random Access Channel (PRACH) on the secondary cell;

[0146] Item D-4: Do not monitor the Physical Downlink Control Channel (PDCCH) of the secondary cell;

[0147] Item D-5: Do not transmit the PUCCH on the secondary cell;

[0148] Item D-6: Monitor the target PDCCH about the secondary cell, the target PDCCH includes at least downlink control information, the downlink control information includes first indication information, and the first indication information is used to indicate at least one of activating the secondary cell, deactivating the secondary cell, activating the positioning reference signal, and deactivating the positioning reference signal.

[0149] Among them, when the secondary cell is in an activated state, the terminal executes at least one of the above D-1 to D-5, so that only the transmission of the positioning reference signal can be activated to improve the positioning performance, but other communication modules are turned off to further save the power of the terminal.

[0150] In addition, the above-mentioned target PDCCH includes at least one of activating the secondary cell, deactivating the secondary cell, activating the positioning reference signal, and deactivating the positioning reference signal. It can be seen that the target PDCCH is associated with the transmission of the positioning signal, so it is necessary to monitor the PDCCH about the secondary cell.

[0151] Optionally, the method further comprises:

[0152] When the secondary cell is in an activated state and the first condition is met, the terminal performs at least one of the following E-1 to E-3:

[0153] Item E-1: Do not monitor the PDCCH of the secondary cell;

[0154] Item E-2: not triggering a Power Headroom Report (PHR) report on the secondary cell;

[0155] Item E-3: At least one of activation and restart of preconfigured resources is not performed;

[0156] The first condition includes at least one of: the terminal is in a low power consumption state, the RRC connection of the terminal is in an inactive state, and the secondary cell is not configured with a non-periodic positioning reference signal.

[0157] Optionally, the “secondary cell is not configured with a non-periodic positioning reference signal” in the first condition may specifically mean that when the secondary cell is configured as a secondary cell for transmitting a positioning reference signal, it is not configured with a non-periodic positioning reference signal.

[0158] In addition, the purpose of the low power consumption state and the inactive state of the RRC connection is to reduce the energy consumption of the terminal and reduce the delay. When the secondary cell is activated and the terminal is in the low power consumption state or the inactive state of the RRC connection, the energy consumption of the terminal can be saved through the above E-1 to E-3.

[0159] In addition, if the secondary cell only includes the transmission of the positioning reference signal, the protocol may also directly stipulate that the terminal performs at least one of the following E-1 to E-3, for example: not triggering the reporting of the power headroom report (Power Headroom Report, PHR) for the secondary cell. This is because the transmission of the positioning reference signal is power controlled, and if the cell does not need to introduce additional uplink transmission, there is no need to report PHR.

[0160] Optionally, item F-1: the secondary cell is associated with a first timer, wherein the first timer is started or stopped according to transmission of a positioning reference signal on the secondary cell;

[0161] or,

[0162] Item F-2: If the second condition is met, the second timer is not started, wherein the second timer is started or turned off according to data scheduling on the secondary cell, and the second condition includes at least one of: the secondary cell only includes transmission of the positioning reference signal, and the secondary cell is configured as a secondary cell for transmitting the positioning reference signal;

[0163] or,

[0164] Item F-3: When the second condition is met, the secondary cell is not associated with the second timer.

[0165] In item F-1, the first timer can be started or stopped according to the transmission of the positioning reference signal on the secondary cell, that is, the first timer is started when the transmission of the positioning reference signal occurs, and the secondary cell is activated until the timing of the first timer is reached; in this way, when there is a positioning reference signal transmission but no data transmission, the secondary cell is not deactivated, resulting in the secondary cell needing to be frequently activated in order to transmit the positioning reference signal.

[0166] Optionally, in item F-1, the secondary cell includes configuration information of a timer or a time window related to the transmission of a positioning reference signal, so that the secondary cell can be activated when the timer expires or within the time window.

[0167] In item F-2, if the secondary cell only includes the transmission of the positioning reference signal, and / or the secondary cell is configured as a cell for transmitting the positioning reference signal, then the second timer that is started or shut down according to the data scheduling on the secondary cell is not started, that is, in this case, the second timer does not control the activation and deactivation of the secondary cell; in this way, when there is positioning reference signal transmission but no data transmission, the secondary cell is not deactivated, resulting in the secondary cell needing to be frequently activated in order to transmit the positioning reference signal.

[0168] In item F-3, if the secondary cell only includes the transmission of the positioning reference signal, and / or the secondary cell is configured as a cell for transmitting the positioning reference signal, then the secondary cell is not associated with the second timer, that is, in this case, the second timer does not control the activation and deactivation of the secondary cell; in this way, when there is positioning reference signal transmission but no data transmission, the secondary cell is not deactivated, resulting in the secondary cell needing to be frequently activated in order to transmit the positioning reference signal.

[0169] Optionally, the method further comprises:

[0170] In a case where the radio resource control RRC release message carries the configuration information of the secondary cell, the terminal performs at least one of the following J-1 to J-5:

[0171] Item J-1: transmitting the positioning reference signal on the secondary cell;

[0172] Item J-2: Small Data Transmission (SDT) is not performed on the secondary cell;

[0173] Item J-3: Do not transmit a small data packet transmission power headroom report (Small Data Transmission Power Headroom Report, SDT PHR) on the secondary cell;

[0174] Item J-4: PRACH is not transmitted on the secondary cell;

[0175] Item J-5: Reference signals (eg, synchronization signal blocks (SSB), PRS) are not measured on the secondary cell.

[0176] Among them, in the related technology, when the terminal changes from the connected state to the inactive state, it will send an RRC release message to the network device. Generally, after the terminal sends the RRC release message, it works on the primary cell by default, that is, the secondary cell is deactivated. However, in an embodiment of the present application, if the RRC release message carries the configuration information of at least one secondary cell, it means that these secondary cells are in the activated state and the positioning reference signal is to be aggregated and sent on these secondary cells. Therefore, when the RRC release message carries the configuration information of the secondary cell, the positioning reference signal can be transmitted on the secondary cell.

[0177] In addition, the above items J-2 to J-5 indicate that if the RRC release message carries the configuration information of the secondary cell, the secondary cell must be in an activated state, and at least one of SDT, PRACH, and reference signal measurement is not transmitted on these secondary cells, thereby saving the power of the terminal while realizing the aggregated transmission of positioning reference signals. Among them, this is also to further restrict the sending cells of initial access and SDT, so that the network does not need to detect PRACH on multiple cells.

[0178] Further, when the RRC release message carries configuration information of the secondary cell and the secondary cell is in an inactive state, the terminal executes at least one of the above J-1 to J-5.

[0179] Optionally, when the RRC release message carries the configuration information of the secondary cell, the secondary cell deactivation timer ScellDeactivationTimer satisfies at least one of the following H-1 to H-2:

[0180] H-1 item: ScellDeactivationTimer is infinite or equal to the time advance timer TAtimer;

[0181] Item H-2: ScellDeactivationTimer is not started or is invalid.

[0182] Among them, if the RRC release message carries the configuration information of the secondary cell, then the secondary cell must be in an activated state. Then, if ScellDeactivationTimer satisfies at least one of the above H-1 to H-2, it means that the secondary cell corresponding to ScellDeactivationTimer is in an activated state, so that the positioning reference signal can be transmitted on the secondary cell, thereby realizing the aggregated transmission of the positioning reference signal.

[0183] Optionally, if the RRC release message carries configuration information of the secondary cell and configuration information of the positioning reference signal, the terminal may understand that the secondary cell is in an activated state only when transmitting the positioning reference signal.

[0184] Optionally, if the RRC release message carries configuration information of the secondary cell and configuration information of the positioning reference signal, the terminal may understand that the secondary cell is in a deactivated state, but may be in an activated state when the secondary cell transmits the positioning reference signal.

[0185] Further, when the RRC release message carries configuration information of the secondary cell and the secondary cell is in an inactive state, ScellDeactivationTimer satisfies at least one of the above H-1 to H-2.

[0186] It can be seen from the above that J-1 to J-5 and H-1 to H-2 are specific implementations of activating the secondary cell when the RRC release message carries the configuration information of the secondary cell.

[0187] Optionally, the method further comprises:

[0188] When the secondary cell is in a deactivated state, the terminal does not transmit the positioning reference signal on the secondary cell.

[0189] It can be seen from this that when the secondary cell is in a deactivated state, the terminal may no longer transmit a positioning reference signal on the secondary cell.

[0190] Optionally, the positioning reference signals aggregated and transmitted on the N cells satisfy at least one of the following:

[0191] Use the same RF link and antenna;

[0192] have the same subcarrier spacing;

[0193] have the same time slot and symbol;

[0194] have the same cyclic prefix (CP);

[0195] have the same cyclic shift;

[0196] have the same period;

[0197] Have the same positioning reference signal type (e.g. periodic, aperiodic, semi-static).

[0198] For example, if the positioning reference signals on cell 1 and cell 2 are aggregated transmissions, then the positioning reference signal transmitted on cell 1 and the positioning reference signal transmitted on cell 2 may use the same RF link and antenna; may have the same time slot and symbol; may have the same cyclic prefix; may have the same cyclic shift; may have the same period; and may belong to the same positioning reference signal type.

[0199] It can be understood that each cell includes at least one aggregated SRS resource set, and at least one SRS resource set of one cell can be associated with the SRS resource sets of other N-1 cells. For example, cell 1 includes SRS resource sets A and B, cell 2 includes SRS resource sets C and D, and cell 3 includes SRS resource sets E and F. Optionally, SRS resource set A can be associated with C and E.

[0200] Among them, if the number of SRS resources in the associated SRS resource sets is the same, there may be a mapping relationship between the SRS resources in the associated SRS resource sets, so that at least part of these SRS resources with a mapping relationship can be aggregated to transmit positioning reference signals. For example, when SRS resource set A is associated with C and E, SRS resource1 in SRS resource set A of cell 1, SRS resource1 in SRS resource set C of cell 2, and SRS resource1 in SRS resource set E of cell 3 can be aggregated to transmit positioning reference signals.

[0201] In this case, the SRS resource for the aggregated transmission positioning reference signal satisfies at least one of the following:

[0202] Use the same RF link and antenna;

[0203] have the same subcarrier spacing;

[0204] have the same time slot and symbol;

[0205] have the same cyclic prefix (CP);

[0206] have the same cyclic shift;

[0207] have the same period;

[0208] Have the same positioning reference signal type (e.g. periodic, aperiodic, semi-static).

[0209] In addition, it should be noted that the association relationship between the above-mentioned SRS resource sets can be configured only on one or more cells to which the SRS resource sets with the association relationship belong, or can be configured on all cells to which the SRS resource sets with the association relationship belong. For example, the association relationship between the above-mentioned SRSresource set A and C and E can be configured on at least one of cell 1, cell 2, and cell 3.

[0210] Further, optionally, the positioning reference signals aggregated and transmitted on the N cells may also satisfy at least one of the following conditions:

[0211] Have the same spatial relationship information;

[0212] Having the same path loss reference signal;

[0213] Having the same power adjustment coefficient (e.g., parameters p0 and α involved in power adjustment);

[0214] have the same maximum transmit power;

[0215] have the same number of symbols;

[0216] Have the same time domain starting position (such as slot or symbol starting position).

[0217] For example, if the positioning reference signals on cell 1 and cell 2 are aggregated transmissions, then at least one of the spatial relationship information, path loss reference signal, power adjustment system, maximum transmit power, number of symbols, and time domain starting position of the positioning reference signal transmitted on cell 1 and the positioning reference signal transmitted on cell 2 may be the same.

[0218] Optionally, the method further comprises:

[0219] Before performing the positioning reference signal measurement, the terminal reports target capability information to a network side device;

[0220] The target capability information includes at least one of the following:

[0221] Whether the terminal supports a secondary cell used only for transmitting the positioning reference signal;

[0222] The terminal supports a number of secondary cells that are only used to transmit the positioning reference signal.

[0223] The network side device may be an access network device (such as a base station) or a core network device (such as a location server).

[0224] It can be seen from this that the terminal can also report to the network side device at least one of whether it supports secondary cells used only for transmitting positioning reference signals and the number of secondary cells supported only for transmitting positioning reference signals, so that the network side device can configure a suitable secondary cell for the terminal.

[0225] Optionally, the method further comprises the following step V-1:

[0226] Step V-1: When the transmission time of the target object scheduled or configured to be transmitted on M cells among the N cells overlaps with the transmission time of the positioning reference signal transmitted in an aggregated manner, and the priority of the target object is higher than the priority of the positioning reference signal, the terminal performs at least one of the following:

[0227] Not transmitting the positioning reference signal on at least one cell among the M cells;

[0228] Transmitting the positioning reference signal on other cells, wherein the other cells include cells other than the M cells among the N cells;

[0229] The target object includes a channel or a signal other than a positioning reference signal, M is greater than or equal to 1, and M is less than N.

[0230] As mentioned above, at least some of the secondary cells among the N cells are only used to transmit positioning reference signals, but there may also be cells among the N cells that can transmit positioning reference signals and other signals (such as primary cells and other secondary cells). For example, there are M cells among the N cells that can transmit positioning reference signals and the above-mentioned target objects, and the transmission time of the target objects on the M cells overlaps with the transmission time of the positioning reference signals of the aggregated transmission on the M cells, and the priority of the target object is higher than the priority of the positioning reference signal. Then, the positioning reference signal may not be transmitted on at least one of the M cells, and / or the positioning reference signal may be transmitted on cells other than the M cells among the N cells.

[0231] For example, N cells include cells 1, 2, and 3, where the transmission time of the target object on cell 1 overlaps with the transmission time of the positioning reference signal on cell 1, and the priority of the target object on cell 1 is higher than the priority of the positioning reference signal on cell 1. Then, the positioning reference signal may not be transmitted on cell 1, but may be transmitted on cells 2 and 3.

[0232] Optionally, the above step V-1 can be applied to the reception process of the positioning reference signal. For example, when the transmission time of the target object scheduled or configured to be transmitted on M cells among N cells overlaps with the reception time of the aggregated transmission PRS, and the priority of the target object is higher than the priority of the PRS, the terminal performs at least one of the following:

[0233] Not receiving the PRS on at least one of the M cells;

[0234] A PRS is received on other cells, wherein the other cells include cells other than the M cells among the N cells, and the target object includes a channel or a signal other than the PRS.

[0235] Optionally, the priority of the terminal in aggregated transmission of positioning reference signals on N cells is higher than the priority of the terminal in transmitting positioning reference signals on the other cells, so that the positioning reference signals can be transmitted on the other cells.

[0236] For example, in the above example, N cells include cells 1, 2, and 3, where the transmission time of the target object on cell 1 overlaps with the transmission time of the positioning reference signal on cell 1, and the priority of the target object on cell 1 is higher than the priority of the positioning reference signal on cell 1. Then, the positioning reference signal may not be transmitted on cell 1, but may be transmitted on cells 2 and 3; in this case, the priority of the positioning reference signal aggregated and transmitted on cells 1, 2, and 3 is higher than the priority of the positioning reference signal transmitted on cells 2 and 3, that is, the priority of the positioning reference signal aggregated and transmitted on cells 1, 2, and 3 configured previously is higher than the priority of the positioning reference signal actually transmitted on cells 2 and 3 later. It should be noted that, in this case, the positioning reference signals on cells 2 and 3 can be aggregated and transmitted.

[0237] Or, for example, N cells include cells 1, 2, and 3, where the transmission time of the target object on cell 2 overlaps with the transmission time of the positioning reference signal on cell 2, and the priority of the target object on cell 2 is higher than the priority of the positioning reference signal on cell 2, then the positioning reference signal may not be transmitted on cell 2, but may be transmitted on cells 1 and 3; in this case, the priority of the positioning reference signal aggregated and transmitted on cells 1, 2, and 3 is higher than the priority of the positioning reference signal transmitted on cells 1 and 3, that is, the priority of the positioning reference signal aggregated and transmitted on cells 1, 2, and 3 previously configured is higher than the priority of the positioning reference signal actually transmitted on cells 1 and 3 later. It should be noted that, in this case, the positioning reference signals on cells 1 and 3 cannot be aggregated and transmitted.

[0238] Optionally, when K positioning reference signals belong to a positioning reference signal set and the positioning reference signal reference set is associated with an aggregated transmission positioning reference signal, the priorities of the K positioning reference signals are determined according to whether the positioning reference signal is an aggregated transmission, where K is greater than zero.

[0239] It can be seen from this that if K positioning reference signals belong to a positioning reference signal set associated with an aggregate transmission positioning reference signal, then the priority of these K positioning reference signals is related to whether aggregate transmission is performed. For example, when aggregate transmission is performed, the priority of these K positioning reference signals is the first preset priority; for example, when aggregate transmission is not performed, the priority of these K positioning reference signals is the second preset priority; here, the first preset priority may be higher than the second preset priority.

[0240] In another embodiment, when the transmission time of the target object scheduled or configured to be transmitted on M cells of the N cells overlaps with the transmission time of the positioning reference signal transmitted in an aggregated manner, and the priority of the target object is higher than the priority of the positioning reference signal, the terminal performs at least one of the following:

[0241] The positioning reference signal is not transmitted in any of the N cells.

[0242] In a second aspect, an embodiment of the present application provides a positioning reference signal transmission method, such as Figure 7 As shown, the method comprises the following steps:

[0243] Step 701: The network side device determines N cells for aggregate transmission of positioning reference signals;

[0244] The network side device may be an access network device (such as a base station) or a core network device (such as a location server).

[0245] Step 702: The network side device configures the N cells to the terminal;

[0246] Wherein, N is an integer greater than 1, and the N cells include at least a secondary cell, and the secondary cell satisfies at least one of the following A-1 to A-3:

[0247] Item A-1: ​​the configuration information of the secondary cell includes the configuration information of the positioning reference signal, and at least one of the physical uplink shared channel PUSCH and the physical uplink control channel PUCCH is not configured;

[0248] Item A-2: the secondary cell only includes transmission of the positioning reference signal;

[0249] Item A-3: The secondary cell is configured as a secondary cell for transmitting the positioning reference signal.

[0250] In the embodiment of the present application, after receiving the configured N cells, the terminal aggregates and transmits positioning reference signals on the N cells.

[0251] Aggregate transmission can be understood as carrier aggregation. In general, a carrier aggregation refers to:

[0252] On 2 or more carriers, the terminal can send and receive data simultaneously, instead of being able to send and receive on only one carrier's activated BWP as in the non-aggregated scenario.

[0253] That is, in the embodiment of the present application, aggregate transmission refers to transmitting positioning reference signals on N cells at the same time, thereby increasing the transmission bandwidth of the positioning reference signal. It should be noted that the transmission positioning reference signal here can be sending an uplink positioning reference signal (ie, SRS) or receiving a downlink positioning reference signal (ie, PRS). Among them, in the case of receiving a downlink reference signal, the N cells can also be understood as N positioning frequency layers, and optionally, the positioning frequency domain layer includes the identification information of the cell.

[0254] In one embodiment, the N cells belong to a band, that is, the carrier aggregation is carrier aggregation of multiple carriers in the band. Usually, a band or a TAG has only one primary cell, so the N cells include N-1 secondary cells.

[0255] In one embodiment, N is an integer greater than 1, and the N cells include at least a secondary cell, that is, the N cells may include a primary cell and one or more secondary cells, or the N cells may include one or more secondary cells.

[0256] In addition, it can be known from A-1 to A-3 above that the N cells may include at least one of a secondary cell used only for transmitting a positioning reference signal and a secondary cell used for transmitting a positioning reference signal and other signals except the positioning reference signal.

[0257] It can be seen that in the embodiment of the present application, the N cells include at least a secondary cell, and the secondary cell has a related configuration of the positioning reference signal, so that the positioning reference signal can be aggregated and transmitted on the N cells, thereby increasing the transmission bandwidth of the positioning reference signal. Among them, the positioning accuracy increases with the increase of the signal bandwidth, therefore, in the embodiment of the present application, the positioning accuracy can be improved by aggregating and transmitting the positioning reference signal on multiple cells.

[0258] Optionally, the method further comprises:

[0259] The network side device receives the target capability information reported by the terminal;

[0260] The network side device determines N cells for positioning reference signal aggregation transmission, including:

[0261] The network side device determines, according to the target capability information, N cells for positioning reference signal aggregate transmission;

[0262] The target capability information includes at least one of the following:

[0263] Whether the terminal supports a secondary cell used only for transmitting the positioning reference signal;

[0264] The terminal supports a number of secondary cells that are only used to transmit the positioning reference signal.

[0265] It can be seen from this that the terminal can also report to the network side device at least one of whether it supports secondary cells used only for transmitting positioning reference signals and the number of secondary cells supported only for transmitting positioning reference signals, so that the network side device can configure a suitable secondary cell for the terminal.

[0266] The positioning reference signal transmission method provided in the embodiment of the present application may be executed by a positioning reference signal transmission device. In the embodiment of the present application, the positioning reference signal transmission method executed by the positioning reference signal transmission device is taken as an example to illustrate the positioning reference signal transmission device provided in the embodiment of the present application.

[0267] In a third aspect, the present application also provides a positioning reference signal transmission device, such as Figure 8 As shown, the positioning reference signal transmission device 80 may include the following modules:

[0268] The transmission module 801 is used to aggregate and transmit positioning reference signals on N cells;

[0269] Wherein, N is an integer greater than 1, and the N cells include at least a secondary cell, and the secondary cell satisfies at least one of the following:

[0270] The configuration information of the secondary cell includes the configuration information of the positioning reference signal, and at least one of a physical uplink shared channel PUSCH and a physical uplink control channel PUCCH is not configured;

[0271] The secondary cell only includes transmission of the positioning reference signal;

[0272] The secondary cell is configured as a secondary cell for transmitting the positioning reference signal.

[0273] Optionally, when the positioning reference signal is transmitted, the secondary cell is in an activated state.

[0274] Optionally, the device further comprises:

[0275] A first receiving module, configured to receive first information, where the first information is used to indicate activation or deactivation of the secondary cell;

[0276] The first execution module is configured to activate or deactivate the secondary cell according to the first information.

[0277] Optionally, the first information includes at least one of the following:

[0278] A medium access control control element MAC CE used to activate a secondary cell;

[0279] MAC CE used to deactivate the secondary cell;

[0280] a target MAC CE, wherein the target MAC CE is used to activate the positioning reference signal, deactivate the positioning reference signal, and configure at least one of the positioning reference signal;

[0281] Downlink control information, the downlink control information includes first indication information, and the first indication information is used to indicate at least one of activating the secondary cell, deactivating the secondary cell, activating the positioning reference signal, and deactivating the positioning reference signal.

[0282] Optionally, the target MAC CE carries at least one of the following:

[0283] Aggregation indication information, where the aggregation indication information is used to indicate whether to aggregate and transmit positioning reference signals;

[0284] Identification information of the cell group to which the N cells belong;

[0285] identification information of the N cells;

[0286] second indication information, where the second indication information is used to indicate the activation status of the N cells;

[0287] Identification information of the bandwidth part BWP;

[0288] Activation information of positioning reference signal;

[0289] Request information for positioning reference signal.

[0290] Optionally, the downlink control information carries time domain information of the positioning reference signal.

[0291] Optionally, the device further comprises:

[0292] The second execution module is configured to execute at least one of the following when the secondary cell is in an activated state:

[0293] not reporting channel state information CSI about the secondary cell;

[0294] Not transmitting an uplink shared channel UL-SCH on the secondary cell;

[0295] Not transmitting a physical random access channel PRACH on the secondary cell;

[0296] Not monitoring the physical downlink control channel PDCCH of the secondary cell;

[0297] not transmitting the PUCCH on the secondary cell;

[0298] Monitor a target PDCCH about the secondary cell, wherein the target PDCCH includes at least downlink control information, and the downlink control information includes first indication information, and the first indication information is used to indicate at least one of activating the secondary cell, deactivating the secondary cell, activating the positioning reference signal, and deactivating the positioning reference signal.

[0299] Optionally, the device further comprises:

[0300] The third execution module is configured to execute at least one of the following items when the secondary cell is in an activated state and the first condition is met:

[0301] not monitoring the PDCCH related to the secondary cell;

[0302] Not triggering a power headroom report PHR report on the secondary cell;

[0303] At least one of activation and restart of the preconfigured resource is not performed;

[0304] The first condition includes at least one of: the terminal is in a low power consumption state, the radio resource control RRC connection of the terminal is in an inactive state, and the secondary cell is not configured with a non-periodic positioning reference signal.

[0305] Optionally, the secondary cell is associated with a first timer, wherein the first timer is started or stopped according to transmission of a positioning reference signal on the secondary cell;

[0306] or,

[0307] If the second condition is met, the second timer is not started, wherein the second timer is started or turned off according to data scheduling on the secondary cell, and the second condition includes: at least one of the transmission of the positioning reference signal only on the secondary cell and the secondary cell being configured as a secondary cell for transmitting the positioning reference signal;

[0308] or,

[0309] When the second condition is met, the secondary cell is not associated with the second timer.

[0310] Optionally, the device further comprises:

[0311] The fourth execution module is configured to execute at least one of the following items when the radio resource control RRC release message carries the configuration information of the secondary cell:

[0312] transmitting the positioning reference signal on the secondary cell;

[0313] Not performing small data packet transmission (SDT) on the secondary cell;

[0314] Not transmitting a power headroom report SDT PHR for small data packet transmission on the secondary cell;

[0315] Not transmitting the PRACH on the secondary cell;

[0316] No reference signal is measured on the secondary cell.

[0317] Optionally, when the RRC release message carries the configuration information of the secondary cell, the secondary cell deactivation timer ScellDeactivationTimer satisfies at least one of the following:

[0318] ScellDeactivationTimer is infinite or equal to the time advance timer TAtimer;

[0319] ScellDeactivationTimer does not start or is invalid.

[0320] Optionally, the device further comprises:

[0321] The fifth execution module is configured to not transmit the positioning reference signal on the secondary cell when the secondary cell is in a deactivated state.

[0322] Optionally, the positioning reference signals aggregated and transmitted on the N cells satisfy at least one of the following:

[0323] Use the same RF link and antenna;

[0324] have the same subcarrier spacing;

[0325] have the same time slot and symbol;

[0326] have the same cyclic prefix;

[0327] have the same cyclic shift;

[0328] have the same period;

[0329] Have the same positioning reference signal type.

[0330] Optionally, the device further comprises:

[0331] A reporting module, used to report target capability information to a network side device before performing the positioning reference signal measurement;

[0332] The target capability information includes at least one of the following:

[0333] Whether the terminal supports a secondary cell used only for transmitting the positioning reference signal;

[0334] The terminal supports a number of secondary cells that are only used to transmit the positioning reference signal.

[0335] Optionally, the device further comprises:

[0336] A sixth execution module is configured to execute at least one of the following items when a transmission time of a target object scheduled or configured to be transmitted on M cells among the N cells overlaps with a transmission time of the aggregated transmission of the positioning reference signal, and a priority of the target object is higher than a priority of the positioning reference signal:

[0337] Not transmitting the positioning reference signal on at least one cell among the M cells;

[0338] Transmitting the positioning reference signal on other cells, wherein the other cells include cells other than the M cells among the N cells;

[0339] The target object includes a channel or a signal other than a positioning reference signal, M is greater than or equal to 1, and M is less than N.

[0340] Optionally, the priority of the terminal in aggregated transmission of positioning reference signals on N cells is higher than the priority of the terminal in transmitting positioning reference signals on the other cells.

[0341] Optionally, when K positioning reference signals belong to a positioning reference signal set and the positioning reference signal reference set is associated with an aggregated transmission positioning reference signal, the priorities of the K positioning reference signals are determined according to whether the positioning reference signal is an aggregated transmission, where K is greater than zero.

[0342] The positioning reference signal transmission device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal. Exemplarily, the terminal may include but is not limited to the types of terminal 11 listed above, and other devices may be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.

[0343] The positioning reference signal transmission device provided in the embodiment of the present application can achieve Figures 3 to 6 The various processes implemented by the method embodiment and achieving the same technical effect are not described here to avoid repetition.

[0344] In a fourth aspect, an embodiment of the present application further provides a positioning reference signal transmission device, which can be applied to a network side device, such as Fig. 9 As shown, the positioning reference signal transmission device 90 may include the following modules:

[0345] A first determining module 901 is used to determine N cells for positioning reference signal aggregate transmission;

[0346] A configuration module 902, configured to configure the N cells to the terminal;

[0347] Wherein, N is an integer greater than 1, and the N cells include at least a secondary cell, and the secondary cell satisfies at least one of the following:

[0348] The configuration information of the secondary cell includes the configuration information of the positioning reference signal, and at least one of a physical uplink shared channel PUSCH and a physical uplink control channel PUCCH is not configured;

[0349] The secondary cell only includes transmission of the positioning reference signal;

[0350] The secondary cell is configured as a secondary cell for transmitting the positioning reference signal.

[0351] Optionally, the device further comprises:

[0352] A second receiving module is used to receive target capability information reported by the terminal;

[0353] The configuration module 902 is specifically used for:

[0354] Determining, according to the target capability information, N cells for aggregate transmission of positioning reference signals;

[0355] The target capability information includes at least one of the following:

[0356] Whether the terminal supports a secondary cell used only for transmitting the positioning reference signal;

[0357] The terminal supports a number of secondary cells that are only used to transmit the positioning reference signal.

[0358] The positioning reference signal transmission device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device may be a network side device. Exemplarily, the network side device may include but is not limited to the types of network side devices 12 listed above, and the embodiment of the present application does not specifically limit this.

[0359] The positioning reference signal transmission device provided in the embodiment of the present application can achieve Figure 7 The various processes implemented by the method embodiment and achieving the same technical effect are not described here to avoid repetition.

[0360] like Fig.10 As shown, the embodiment of the present application further provides a communication device 1000, including a processor 1001 and a memory 1002, and the memory 1002 stores a program or instruction that can be run on the processor 1001. For example, when the communication device 1000 is a terminal, the program or instruction is executed by the processor 1001 to implement the various steps of the embodiment of the positioning reference signal transmission method described in the first aspect above, and can achieve the same technical effect. When the communication device 1000 is a network side device, the program or instruction is executed by the processor 1001 to implement the various steps of the embodiment of the positioning reference signal transmission method described in the second aspect above, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0361] The embodiment of the present application also provides a terminal, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the following Figure 3The steps in the method embodiment shown. This terminal embodiment corresponds to the above-mentioned terminal side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this terminal embodiment and can achieve the same technical effect. Specifically, Fig.11 A schematic diagram of the hardware structure of a terminal for implementing an embodiment of the present application.

[0362] The terminal 1100 includes but is not limited to: a radio frequency unit 1101, a network module 1102, an audio output unit 1103, an input unit 1104, a sensor 1105, a display unit 1106, a user input unit 1107, an interface unit 1108, a memory 1109 and at least some of the components of a processor 1110.

[0363] Those skilled in the art will appreciate that the terminal 1100 may also include a power source (such as a battery) for supplying power to each component, and the power source may be logically connected to the processor 1110 through a power management system, thereby implementing functions such as managing charging, discharging, and power consumption management through the power management system. Fig.11 The terminal structure shown in the figure does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0364] It should be understood that in the embodiment of the present application, the input unit 1104 may include a graphics processing unit (GPU) 11041 and a microphone 11042, and the graphics processor 11041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 1106 may include a display panel 11061, and the display panel 11061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 1107 includes a touch panel 11071 and at least one of other input devices 11072. The touch panel 11071 is also called a touch screen. The touch panel 11071 may include two parts: a touch detection device and a touch controller. Other input devices 11072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0365] In the embodiment of the present application, after receiving downlink data from the network side device, the RF unit 1101 can transmit the data to the processor 1110 for processing; in addition, the RF unit 1101 can send uplink data to the network side device. Generally, the RF unit 1101 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0366] The memory 1109 can be used to store software programs or instructions and various data. The memory 1109 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 1109 may include a volatile memory or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM) and a direct memory bus random access memory (DRRAM). The memory 1109 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0367] The processor 1110 may include one or more processing units; optionally, the processor 1110 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 1110.

[0368] The radio frequency unit 1101 is used to aggregate and transmit positioning reference signals on N cells;

[0369] Wherein, N is an integer greater than 1, and the N cells include at least a secondary cell, and the secondary cell satisfies at least one of the following:

[0370] The configuration information of the secondary cell includes the configuration information of the positioning reference signal, and at least one of a physical uplink shared channel PUSCH and a physical uplink control channel PUCCH is not configured;

[0371] The secondary cell only includes transmission of the positioning reference signal;

[0372] The secondary cell is configured as a secondary cell for transmitting the positioning reference signal.

[0373] Optionally, when the positioning reference signal is transmitted, the secondary cell is in an activated state.

[0374] Optionally, the radio frequency unit 1101 is further used to: receive first information, where the first information is used to indicate activation or deactivation of the secondary cell;

[0375] The processor 1110 is configured to activate or deactivate the secondary cell according to the first information.

[0376] Optionally, the first information includes at least one of the following:

[0377] A medium access control control element MAC CE used to activate a secondary cell;

[0378] MAC CE used to deactivate the secondary cell;

[0379] a target MAC CE, wherein the target MAC CE is used to activate the positioning reference signal, deactivate the positioning reference signal, and configure at least one of the positioning reference signal;

[0380] Downlink control information, the downlink control information includes first indication information, and the first indication information is used to indicate at least one of activating the secondary cell, deactivating the secondary cell, activating the positioning reference signal, and deactivating the positioning reference signal.

[0381] Optionally, the target MAC CE carries at least one of the following:

[0382] Aggregation indication information, where the aggregation indication information is used to indicate whether to aggregate and transmit positioning reference signals;

[0383] Identification information of the cell group to which the N cells belong;

[0384] identification information of the N cells;

[0385] second indication information, where the second indication information is used to indicate the activation status of the N cells;

[0386] Identification information of the bandwidth part BWP;

[0387] Activation information of positioning reference signal;

[0388] Request information for positioning reference signal.

[0389] Optionally, the downlink control information carries time domain information of the positioning reference signal.

[0390] Optionally, the radio frequency unit 1101 is further configured to:

[0391] When the secondary cell is in an activated state, at least one of the following is performed:

[0392] not reporting channel state information CSI about the secondary cell;

[0393] Not transmitting an uplink shared channel UL-SCH on the secondary cell;

[0394] Not transmitting a physical random access channel PRACH on the secondary cell;

[0395] Not monitoring the physical downlink control channel PDCCH of the secondary cell;

[0396] not transmitting the PUCCH on the secondary cell;

[0397] Monitor a target PDCCH about the secondary cell, wherein the target PDCCH includes at least downlink control information, and the downlink control information includes first indication information, and the first indication information is used to indicate at least one of activating the secondary cell, deactivating the secondary cell, activating the positioning reference signal, and deactivating the positioning reference signal.

[0398] Optionally, the radio frequency unit 1101 is further configured to: when the secondary cell is in an activated state and the first condition is met, perform at least one of the following:

[0399] not monitoring the PDCCH related to the secondary cell;

[0400] Not triggering a power headroom report PHR report on the secondary cell;

[0401] The processor 1110 is further configured to: when the secondary cell is in an activated state and the first condition is met, not perform at least one of activation and restart of the pre-configured resources;

[0402] The first condition includes at least one of: the terminal is in a low power consumption state, the radio resource control RRC connection of the terminal is in an inactive state, and the secondary cell is not configured with a non-periodic positioning reference signal.

[0403] Optionally, the secondary cell is associated with a first timer, wherein the first timer is started or stopped according to transmission of a positioning reference signal on the secondary cell;

[0404] or,

[0405] If the second condition is met, the second timer is not started, wherein the second timer is started or turned off according to data scheduling on the secondary cell, and the second condition includes: at least one of the transmission of the positioning reference signal only on the secondary cell and the secondary cell being configured as a secondary cell for transmitting the positioning reference signal;

[0406] or,

[0407] When the second condition is met, the secondary cell is not associated with the second timer.

[0408] Optionally, the radio frequency unit 1101 is further configured to:

[0409] In a case where the radio resource control RRC release message carries the configuration information of the secondary cell, at least one of the following is performed:

[0410] transmitting the positioning reference signal on the secondary cell;

[0411] Not performing small data packet transmission (SDT) on the secondary cell;

[0412] Not transmitting a power headroom report SDT PHR for small data packet transmission on the secondary cell;

[0413] Not transmitting the PRACH on the secondary cell;

[0414] No reference signal is measured on the secondary cell.

[0415] Optionally, when the RRC release message carries the configuration information of the secondary cell, the secondary cell deactivation timer ScellDeactivationTimer satisfies at least one of the following:

[0416] ScellDeactivationTimer is infinite or equal to the time advance timer TAtimer;

[0417] ScellDeactivationTimer does not start or is invalid.

[0418] Optionally, the radio frequency unit 1101 is further configured to:

[0419] When the secondary cell is in a deactivated state, the positioning reference signal is not transmitted on the secondary cell.

[0420] Optionally, the positioning reference signals aggregated and transmitted on the N cells satisfy at least one of the following:

[0421] Use the same RF link and antenna;

[0422] have the same subcarrier spacing;

[0423] have the same time slot and symbol;

[0424] have the same cyclic prefix;

[0425] have the same cyclic shift;

[0426] have the same period;

[0427] Have the same positioning reference signal type.

[0428] Optionally, the radio frequency unit 1101 is further configured to:

[0429] Before performing the positioning reference signal measurement, reporting target capability information to a network side device;

[0430] The target capability information includes at least one of the following:

[0431] Whether the terminal supports a secondary cell used only for transmitting the positioning reference signal;

[0432] The terminal supports a number of secondary cells that are only used to transmit the positioning reference signal.

[0433] Optionally, the radio frequency unit 1101 is further configured to:

[0434] In a case where a transmission time of a target object scheduled or configured to be transmitted on M cells among the N cells overlaps with a transmission time of the positioning reference signal transmitted in an aggregated manner, and a priority of the target object is higher than a priority of the positioning reference signal, performing at least one of the following:

[0435] Not transmitting the positioning reference signal on at least one cell among the M cells;

[0436] Transmitting the positioning reference signal on other cells, wherein the other cells include cells other than the M cells among the N cells;

[0437] The target object includes a channel or a signal other than a positioning reference signal, M is greater than or equal to 1, and M is less than N.

[0438] Optionally, the priority of the terminal in aggregated transmission of positioning reference signals on N cells is higher than the priority of the terminal in transmitting positioning reference signals on the other cells.

[0439] Optionally, when K positioning reference signals belong to a positioning reference signal set and the positioning reference signal reference set is associated with an aggregated transmission positioning reference signal, the priorities of the K positioning reference signals are determined according to whether the positioning reference signal is an aggregated transmission, where K is greater than zero.

[0440] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the method embodiment and achieve the same or corresponding technical effect. To avoid repetition, it will not be repeated here.

[0441] The embodiment of the present application also provides a network side device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the following Figure 7 The steps of the method embodiment shown. This network side device embodiment corresponds to the above network side device method embodiment, and each implementation process and implementation mode of the above method embodiment can be applied to this network side device embodiment and can achieve the same technical effect.

[0442] Specifically, the embodiment of the present application also provides a network side device. Fig.12 As shown, the network side device 1200 includes: an antenna 121, a radio frequency device 122, a baseband device 123, a processor 124 and a memory 125. The antenna 121 is connected to the radio frequency device 122. In the uplink direction, the radio frequency device 122 receives information through the antenna 121 and sends the received information to the baseband device 123 for processing. In the downlink direction, the baseband device 123 processes the information to be sent and sends it to the radio frequency device 122. The radio frequency device 122 processes the received information and sends it out through the antenna 121.

[0443] The method executed by the network-side device in the above embodiment may be implemented in the baseband device 123, which includes a baseband processor.

[0444] The baseband device 123 may include, for example, at least one baseband board on which a plurality of chips are arranged. Fig.12 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 125 through a bus interface to call the program in the memory 125 to execute the network device operations shown in the above method embodiment.

[0445] The network side device may further include a network interface 126, which is, for example, a Common Public Radio Interface (CPRI).

[0446] Specifically, the network side device 1200 of the embodiment of the present invention further includes: instructions or programs stored in the memory 125 and executable on the processor 124, and the processor 124 calls the instructions or programs in the memory 125 to execute. Fig. 9 The methods executed by the modules shown achieve the same technical effects, and therefore will not be described here in detail to avoid repetition.

[0447] Specifically, the embodiment of the present application also provides a network side device. Fig.13 As shown, the network side device 1300 includes: a processor 1301, a network interface 1302 and a memory 1303. The network interface 1302 is, for example, a common public radio interface (CPRI).

[0448] Specifically, the network side device 1300 of the embodiment of the present invention further includes: an instruction or program stored in the memory 1303 and executable on the processor 1301, and the processor 1301 calls the instruction or program in the memory 1303 to execute Fig. 9 The methods executed by the modules shown achieve the same technical effects, and therefore will not be described here in detail to avoid repetition.

[0449] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the method embodiment described in the first aspect or the second aspect above are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0450] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0451] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the method embodiments described in the first aspect or the second aspect above, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0452] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0453] An embodiment of the present application further provides a computer program / program product, which is stored in a storage medium and is executed by at least one processor to implement the various processes of the method embodiments described in the first aspect or the second aspect above, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0454] An embodiment of the present application also provides a positioning reference signal transmission system, including: a terminal and a network side device, wherein the terminal can be used to execute the steps of the method described in the first aspect above, and the network side device can be used to execute the steps of the method described in the second aspect above.

[0455] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0456] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general hardware platform, and of course, can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, disk, CD, etc.), including several instructions to enable a terminal or a network-side device to execute the methods described in each embodiment of the present application.

[0457] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of the present application and the scope of protection of the claims, and these implementation methods are all within the protection of the present application.

Claims

1. A positioning reference signal transmission method, characterized in that: include: The terminal aggregates and transmits positioning reference signals on N cells; Wherein, N is an integer greater than 1, and the N cells include at least a secondary cell, and the secondary cell satisfies at least one of the following: The configuration information of the secondary cell includes the configuration information of the positioning reference signal, and at least one of a physical uplink shared channel PUSCH and a physical uplink control channel PUCCH is not configured; The secondary cell only includes transmission of the positioning reference signal; The secondary cell is configured as a secondary cell for transmitting the positioning reference signal.

2. The method according to claim 1, characterized in that When transmitting the positioning reference signal, the secondary cell is in an activated state.

3. The method according to claim 2, characterized in that The method further comprises: The terminal receives first information, where the first information is used to indicate activation or deactivation of the secondary cell; The terminal activates or deactivates the secondary cell according to the first information.

4. The method according to claim 3, characterized in that The first information includes at least one of the following: A medium access control control element MAC CE used to activate a secondary cell; MAC CE used to deactivate the secondary cell; a target MAC CE, wherein the target MAC CE is used to activate the positioning reference signal, deactivate the positioning reference signal, and configure at least one of the positioning reference signal; Downlink control information, the downlink control information includes first indication information, and the first indication information is used to indicate at least one of activating the secondary cell, deactivating the secondary cell, activating the positioning reference signal, and deactivating the positioning reference signal.

5. The method according to claim 4, characterized in that The target MAC CE carries at least one of the following: Aggregation indication information, where the aggregation indication information is used to indicate whether to aggregate and transmit positioning reference signals; identification information of the cell group to which the N cells belong; identification information of the N cells; second indication information, where the second indication information is used to indicate the activation status of the N cells; Identification information of the bandwidth part BWP; Activation information of positioning reference signal; Request information for positioning reference signal.

6. The method according to claim 4 or 5, characterized in that: The downlink control information carries the time domain information of the positioning reference signal.

7. The method according to any one of claims 1 to 6, characterized in that: The method further comprises: When the secondary cell is in an activated state, the terminal performs at least one of the following: not reporting channel state information CSI about the secondary cell; Not transmitting an uplink shared channel UL-SCH on the secondary cell; Not transmitting a physical random access channel PRACH on the secondary cell; Not monitoring the physical downlink control channel PDCCH of the secondary cell; not transmitting the PUCCH on the secondary cell; Monitor a target PDCCH about the secondary cell, wherein the target PDCCH includes at least downlink control information, and the downlink control information includes first indication information, and the first indication information is used to indicate at least one of activating the secondary cell, deactivating the secondary cell, activating the positioning reference signal, and deactivating the positioning reference signal.

8. The method according to any one of claims 1 to 7, characterized in that: The method further comprises: When the secondary cell is in an activated state and the first condition is met, the terminal performs at least one of the following: not monitoring the PDCCH related to the secondary cell; Not triggering a power headroom report PHR report on the secondary cell; At least one of activation and restart of the preconfigured resource is not performed; The first condition includes at least one of: the terminal is in a low power consumption state, the radio resource control RRC connection of the terminal is in an inactive state, and the secondary cell is not configured with a non-periodic positioning reference signal.

9. The method according to any one of claims 1 to 8, characterized in that: The secondary cell is associated with a first timer, wherein the first timer is started or stopped according to transmission of a positioning reference signal on the secondary cell; or, If the second condition is met, the second timer is not started, wherein the second timer is started or turned off according to data scheduling on the secondary cell, and the second condition includes: at least one of the transmission of the positioning reference signal only on the secondary cell and the secondary cell being configured as a secondary cell for transmitting the positioning reference signal; or, When the second condition is met, the secondary cell is not associated with the second timer.

10. The method according to any one of claims 1 to 9, characterized in that: The method further comprises: In a case where the radio resource control RRC release message carries the configuration information of the secondary cell, the terminal performs at least one of the following: transmitting the positioning reference signal on the secondary cell; Not performing small data packet transmission (SDT) on the secondary cell; Not transmitting a power headroom report SDT PHR for small data packet transmission on the secondary cell; Not transmitting the PRACH on the secondary cell; No reference signal is measured on the secondary cell.

11. The method according to any one of claims 1 to 10, characterized in that: When the RRC release message carries the configuration information of the secondary cell, the secondary cell deactivation timer ScellDeactivationTimer satisfies at least one of the following: ScellDeactivationTimer is infinite or equal to the time advance timer TAtimer; ScellDeactivationTimer does not start or is invalid.

12. The method according to any one of claims 1 to 11, characterized in that: The method further comprises: When the secondary cell is in a deactivated state, the terminal does not transmit the positioning reference signal on the secondary cell.

13. The method according to any one of claims 1 to 12, characterized in that: The positioning reference signals aggregated and transmitted on the N cells satisfy at least one of the following conditions: Use the same RF link and antenna; have the same subcarrier spacing; have the same time slot and symbol; have the same cyclic prefix; have the same cyclic shift; have the same period; Have the same positioning reference signal type.

14. The method according to any one of claims 1 to 13, characterized in that: The method further comprises: Before performing the positioning reference signal measurement, the terminal reports target capability information to a network side device; The target capability information includes at least one of the following: Whether the terminal supports a secondary cell used only for transmitting the positioning reference signal; The terminal supports a number of secondary cells that are only used to transmit the positioning reference signal.

15. The method according to any one of claims 1 to 14, characterized in that The method further comprises: In a case where a transmission time of a target object scheduled or configured for transmission on M cells among the N cells overlaps with a transmission time of the positioning reference signal for aggregate transmission, and a priority of the target object is higher than a priority of the positioning reference signal, the terminal performs at least one of the following: Not transmitting the positioning reference signal on at least one cell among the M cells; Transmitting the positioning reference signal on other cells, wherein the other cells include cells other than the M cells among the N cells; The target object includes a channel or a signal other than a positioning reference signal, M is greater than or equal to 1, and M is less than N.

16. The method according to claim 15, characterized in that The priority of the terminal in aggregately transmitting positioning reference signals on N cells is higher than the priority of the terminal in transmitting positioning reference signals on the other cells.

17. The method according to claim 15 or 16, characterized in that When K positioning reference signals belong to a positioning reference signal set, and the positioning reference signal set is associated with an aggregated transmission positioning reference signal, the priorities of the K positioning reference signals are determined according to whether the positioning reference signal is an aggregated transmission, where K is greater than zero.

18. A positioning reference signal transmission method, characterized in that: The method comprises: The network side device determines N cells for aggregate transmission of positioning reference signals; The network side device configures the N cells to the terminal; Wherein, N is an integer greater than 1, and the N cells include at least a secondary cell, and the secondary cell satisfies at least one of the following: The configuration information of the secondary cell includes the configuration information of the positioning reference signal, and at least one of a physical uplink shared channel PUSCH and a physical uplink control channel PUCCH is not configured; The secondary cell only includes transmission of the positioning reference signal; The secondary cell is configured as a secondary cell for transmitting the positioning reference signal.

19. The method according to claim 18, characterized in that The method further comprises: The network side device receives the target capability information reported by the terminal; The network side device determines N cells for aggregate transmission of positioning reference signals, including: The network side device determines, according to the target capability information, N cells for positioning reference signal aggregate transmission; The target capability information includes at least one of the following: Whether the terminal supports a secondary cell used only for transmitting the positioning reference signal; The terminal supports a number of secondary cells that are only used to transmit the positioning reference signal.

20. A positioning reference signal transmission device, characterized in that: Applied to a terminal, the device comprises: A transmission module, used for aggregating and transmitting positioning reference signals on N cells; Wherein, N is an integer greater than 1, and the N cells include at least a secondary cell, and the secondary cell satisfies at least one of the following: The configuration information of the secondary cell includes the configuration information of the positioning reference signal, and at least one of a physical uplink shared channel PUSCH and a physical uplink control channel PUCCH is not configured; The secondary cell only includes transmission of the positioning reference signal; The secondary cell is configured as a secondary cell for transmitting the positioning reference signal.

21. A positioning reference signal transmission device, characterized in that: Applied to a network side device, the device comprises: A first determination module, used to determine N cells for positioning reference signal aggregate transmission; A configuration module, used to configure the N cells to the terminal; Wherein, N is an integer greater than 1, and the N cells include at least a secondary cell, and the secondary cell satisfies at least one of the following: The configuration information of the secondary cell includes the configuration information of the positioning reference signal, and at least one of a physical uplink shared channel PUSCH and a physical uplink control channel PUCCH is not configured; The secondary cell only includes transmission of the positioning reference signal; The secondary cell is configured as a secondary cell for transmitting the positioning reference signal.

22. A communication device, characterized in that: The method comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the method implements the steps of the positioning reference signal transmission method as described in any one of claims 1 to 17, or implements the steps of the positioning reference signal transmission method as described in any one of claims 18 to 19.

23. A readable storage medium, characterized in that: The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, it implements the positioning reference signal transmission method as described in any one of claims 1 to 17, or implements the steps of the positioning reference signal transmission method as described in any one of claims 18 to 19.

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