Method for transmitting power headroom, terminal device and network device

Abstract

Embodiments of the present invention disclose a method for transmitting power headroom, a terminal device, and a network device. The method comprises the step of transmitting a power headroom (PH) value of a serving cell to a network device, wherein the PH value is a first PH value of a first sounding reference signal (SRS) and / or a second PH value of a second SRS; wherein the first PH value is obtained according to first setting information of the first SRS, the first SRS is an SRS for positioning, and the second SRS is an SRS for measurement.

Description

Technology Field

[0001] Embodiments of the present invention relate to the field of communication, and in particular to a method for transmitting power headroom, a terminal device, and a network device.

[0002] Cross-citation of related applications

[0003] The present invention claims priority to a Chinese patent application filed with the Chinese Intellectual Property Office on March 31, 2020, with application number 202010246507.0 and title of the invention "Method for transmitting power headroom, terminal device and network device," and the entire contents of the present application are cited. Background Technology

[0004] New Radio (NR) supports Carrier Aggregation (CA), Dual Connectivity (DC), Supplementary Uplink (SUL), and Carrier Switching Transmission. In these scenarios, User Equipment (UE) can simultaneously transmit uplink physical channels or reference signals on multiple carriers.

[0005] The Power Headroom Report (PHR) is primarily intended to assist network-side scheduling, and as channel types differ, the uplink supports Type 1 and Type 3 PHRs. The Type 1 PHR is calculated based on the Physical Uplink Shared Channel (PUSCH), and the Type 3 PHR is calculated based on the Sounding Reference Signal (SRS). The SRS is classified into two types: the SRS for positioning and the SRS for measurement. Currently, the Type 3 PHR does not distinguish between the types of SRS, so it cannot report the first Power Headroom (PH) value corresponding to the SRS for positioning or the second PH value corresponding to the SRS for measurement. The problem to be solved

[0006] The objective of an embodiment of the present invention is to provide a method for transmitting power headroom that reports a first PH value corresponding to an SRS for positioning or a second PH value corresponding to an SRS for measurement, a terminal device, and a network device. means of solving the problem

[0007] In a first aspect, the method comprises the step of transmitting a power headroom (PH) value of a serving cell to a network device, wherein the PH value is a first PH value of a first sounding reference signal (SRS) and / or a second PH value of a second SRS; wherein the first PH value is obtained according to first setting information of the first SRS, the first SRS is an SRS for positioning, and the second SRS is an SRS for measurement.

[0008] In a second aspect, the method comprises the step of being performed by a network device; receiving a power headroom (PH) value of a serving cell transmitted by a terminal device, wherein the PH value is a first PH value of a first sounding reference signal (SRS) and / or a second PH value of a second SRS; wherein the first PH value is obtained according to first setting information of the first SRS, the first SRS is an SRS for positioning, and the second SRS is an SRS for measurement, thereby providing a method for transmitting power headroom.

[0009] In a third aspect, the device comprises a processing module for transmitting a power headroom (PH) value of a serving cell to a network device, wherein the PH value is a first PH value of a first sounding reference signal (SRS) and / or a second PH value of a second SRS; wherein the first PH value is obtained according to first setting information of the first SRS, the first SRS is an SRS for positioning, and the second SRS is an SRS for measurement.

[0010] In the fourth aspect, the network device comprises an execution module for receiving a power headroom (PH) value of a serving cell transmitted by a terminal device, wherein the PH value is a first PH value of a first sounding reference signal (SRS) and / or a second PH value of a second SRS; wherein the first PH value is obtained according to first setting information of the first SRS, the first SRS is an SRS for positioning, and the second SRS is an SRS for measurement.

[0011] In the fifth aspect, a terminal device is provided that includes a processor, a memory, and a computer program stored in the memory and executable by the processor, wherein the step of a method for transmitting power headroom according to the first aspect is implemented when the computer program is executed by the processor.

[0012] In the sixth aspect, a network device is provided that includes a processor, a memory, and a computer program stored in the memory and executable by the processor, wherein the step of a method for transmitting power headroom according to the second aspect is implemented when the computer program is executed by the processor.

[0013] In the seventh aspect, a computer-readable storage medium is provided that stores a computer program in which a step of a method for transmitting power headroom according to the first aspect or the second aspect is implemented when executed by a processor.

[0014] One embodiment of the present invention provides a method for transmitting a power headroom (PH) value of a serving cell to a network device, wherein the PH value is a first PH value of a first sounding reference signal (SRS) and / or a second PH value of a second SRS; wherein the first PH value is obtained according to first setting information of the first SRS, the first SRS is an SRS for positioning, and the second SRS is an SRS for measurement, and the method for transmitting a power headroom capable of reporting a first PH value corresponding to the SRS for positioning or a second PH value corresponding to the SRS for measurement, a terminal device, and a network device. Brief explanation of the drawing

[0015] The attached drawings described herein provide for further understanding of the present application and constitute part of the present application, and exemplary embodiments and descriptions of the present application are for interpreting the present application and do not constitute an inappropriate limitation to the present application. FIG. 1 is a method for transmitting power headroom according to one embodiment of the present invention. FIG. 2 is a method for transmitting power headroom according to another embodiment of the present invention. FIG. 3 is a method for transmitting power headroom according to another embodiment of the present invention. FIG. 4 is a method for transmitting power headroom according to another embodiment of the present invention. FIG. 5 is a method for transmitting power headroom according to another embodiment of the present invention. FIG. 6 is a method for transmitting power headroom according to another embodiment of the present invention. Figures 7a-7d are schematic diagrams of MAC CE signaling formats. FIG. 8 is a schematic diagram of the structure of a terminal device according to one embodiment of the present invention. FIG. 9 is a schematic diagram of the structure of a network device according to one embodiment of the present invention. FIG. 10 is a schematic diagram of the structure of a terminal device according to another embodiment of the present invention. FIG. 11 is a schematic diagram of the structure of a network device according to another embodiment of the present invention. Specific details for implementing the invention

[0016] To clarify the purpose, technical solution, and advantages of the present application, the technical solution of the present application is described clearly and completely in conjunction with specific embodiments of the present application and the corresponding accompanying drawings. It is evident that the described embodiments are merely some embodiments of the present application and are not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application, without striving to create an inventive step, fall within the scope of protection of the present application. The “and / or” in each embodiment of this specification indicates at least one of the preceding and succeeding.

[0017] It should be understood that the technical solution of the embodiment of the present invention can be applied to various communication systems, such as, for example, Long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD) systems, Universal Mobile Telecommunication System (UMTS) or Worldwide Interoperability for Microwave Access (WiMAX) communication systems, 5G systems, or New Radio (NR) systems, or subsequent evolved communication systems.

[0018] In an embodiment of the present invention, the terminal device may include, but is not limited to, a mobile station (MS), a mobile terminal, a mobile telephone, a user equipment (UE), a handset and portable equipment, a vehicle, etc., and the terminal device may communicate with one or more core networks through a radio access network (RAN). For example, the terminal device may be a mobile phone (or referred to as a “cellular” phone), a computer having wireless communication capabilities, etc., and the terminal device may also be a portable, pocket, handheld, computer-embedded, or vehicle-mounted mobile device.

[0019] In an embodiment of the present invention, a network device is a device deployed in a wireless access network to provide wireless communication functions to a terminal device. The network device may be a base station, and the base station may include various types of macro base stations, micro base stations, relay stations, access points, etc. In systems using different wireless access technologies, the name of the device having base station functions may differ. For example, in an LTE network, it is referred to as an Evolved Node B (eNB or eNode B), and in a 3G (3rd Generation, 3G) network, it is referred to as a Node B or a network device of a subsequent evolved communication system, but the use of the word is not restricted.

[0020] As illustrated in FIG. 1, one embodiment of the present invention provides a method (100) for transmitting power headroom, said method may be performed by a terminal device, that is, said method may be performed by software or hardware mounted on the terminal device, said method comprises the following steps.

[0021] S102: The terminal device transmits the PH value of the serving cell to the network device, and the PH value is the first PH value of the first SRS and / or the second PH value of the second SRS.

[0022] Here, the first pH value is obtained according to the first setting information of the first SRS, the first SRS is an SRS for positioning, and the second SRS is an SRS for measurement. In one embodiment, the second pH value may be obtained according to the second setting information of the second SRS.

[0023] Based on this, the network device receives the PH value of the serving cell transmitted by the terminal device and can perform corresponding network scheduling, power or terminal scheduling based on this PH value.

[0024] Accordingly, one embodiment of the present invention provides a method (100) for transmitting power headroom that transmits a PH value of a serving cell to a network device, wherein the PH value is a first PH value of a first SRS and / or a second PH value of a second SRS; wherein the first PH value is obtained according to the first setting information of the first SRS, the first SRS is an SRS for positioning, and the second SRS is an SRS for measurement, and a PH value report can be performed for the first PH value corresponding to the SRS for positioning or the second PH value corresponding to the SRS for measurement, so that the network device can perform network scheduling, power or terminal scheduling corresponding to the first PH value or the second PH value.

[0025] As illustrated in FIG. 2, one embodiment of the present invention provides a method (200) for transmitting power headroom, said method may be performed by a network device, that is, said method may be performed by software or hardware mounted on a network device, said method comprises the following steps.

[0026] S202: A network device receives a PH value of a serving cell transmitted by a terminal device, and the PH value is a first PH value of a first SRS and / or a second PH value of a second SRS.

[0027] Here, the first pH value is obtained according to the first setting information of the first SRS, the first SRS is an SRS for positioning, and the second SRS is an SRS for measurement.

[0028] In one embodiment, a network device receives a PH value through a Medium Access Control Element (MAC CE) and can perform corresponding network scheduling, power or terminal scheduling based on the PH value.

[0029] Accordingly, one embodiment of the present invention provides a method (200) for receiving a PH value of a serving cell transmitted by a terminal device, wherein the PH value is a first PH value of a first SRS and / or a second PH value of a second SRS; wherein the first SRS is an SRS for positioning and the second SRS is an SRS for measurement, and a power headroom capable of performing network scheduling, power or terminal scheduling corresponding to the first PH value corresponding to the SRS for positioning or the second PH value corresponding to the SRS for measurement is transmitted.

[0030] As illustrated in FIG. 3, one embodiment of the present invention provides a method (300) for transmitting power headroom, said method may be performed by a terminal device and / or a network device, that is, said method may be performed by software or hardware mounted on a terminal device and / or a network device, said method comprises the following steps.

[0031] S304: The terminal device transmits the PH value of the serving cell to the network device, and the PH value is the first PH value of the first SRS and / or the second PH value of the second SRS.

[0032] Here, the first pH value is obtained according to the first setting information of the first SRS, the first SRS is an SRS for positioning, and the second SRS is an SRS for measurement. In one embodiment, the second pH value may be obtained according to the second setting information of the second SRS.

[0033] In one embodiment, the first setting information of the SRS for positioning may be set in an information unit of the SRS resource set for positioning, for example, in an information unit of SRS-PosResourceset. The second setting information may be set in SRS-Resourceset.

[0034] In one embodiment, the terminal device can transmit the PH value to the network device via MAC CE.

[0035] In one embodiment, the UE can trigger a PHR report according to trigger conditions specified in the protocol.

[0036] The network device receives the PH value of the serving cell transmitted by the terminal device, and the PH value is the first PH value of the first SRS and / or the second PH value of the second SRS.

[0037] Here, the first pH value is obtained according to the first setting information of the first SRS, the first SRS is an SRS for positioning, and the second SRS is an SRS for measurement.

[0038] In one embodiment, a network device receives a PH value through MAC CE and can perform corresponding network scheduling, power or terminal scheduling based on this PH value.

[0039] Accordingly, one embodiment of the present invention provides a method (300) for transmitting power headroom that transmits a power headroom (PH) value of a serving cell to a network device, wherein the PH value is a first PH value of a first sounding reference signal (SRS) and / or a second PH value of a second SRS; wherein the first PH value is obtained according to first setting information of the first SRS, the first SRS is an SRS for positioning, and the second SRS is an SRS for measurement, and a PH value report can be performed for the first PH value corresponding to the SRS for positioning or the second PH value corresponding to the SRS for measurement, so that the network device can perform network scheduling, power or terminal scheduling corresponding to the first PH value or the second PH value.

[0040] As illustrated in FIG. 4, one embodiment of the present invention provides a method (400) for transmitting power headroom, said method may be performed by a terminal device and / or a network device, that is, said method may be performed by software or hardware mounted on a terminal device and / or a network device, said method comprises the following steps.

[0041] S401: The network device transmits the first setting information of the first SRS to the terminal device.

[0042] Here, the first setting information is a path loss reference signal , p0 power value , path loss coefficient Includes, wherein the path loss reference signal is a signal transmitted by the target cell, and wherein the target cell is a serving cell and / or neighbor cell.

[0043] In one embodiment, the path loss reference signal includes at least one of a Synchronization Signal and PBCH block (SSB), a Channel State Information (CSI) reference signal, and a Downlink Pos-Reference Signal (Dl-PRS).

[0044] If the path loss reference signal is an SSB or CSI reference signal, the first setting information further includes transmission power information of the path loss reference signal. The transmission power information is intended to indicate the transmission power of the path loss reference signal. If the path loss reference signal is a DL PRS, the transmission power information of the path loss reference signal is determined by the LTE Positioning Protocol (LPP). The terminal device receives the first setting information and performs the following steps.

[0045] S402: The terminal device obtains the first PH value of the first SRS according to the first setting information of the first SRS.

[0046] Specifically, the step of obtaining the first PH value of the first SRS according to the first setting information of the first SRS may include the following steps.

[0047] According to the transmission power of the path loss reference signal and the received power obtained by measuring the path loss reference signal, the path loss value Calculate. In one embodiment, the path loss value is the difference between the transmission power of the path loss reference signal and the reception power.

[0048] Here, regarding the path loss references of the 5G NR system, the network side may set multiple downlink path loss references simultaneously for a single cell, and optionally, each path loss reference may correspond to a different reference signal, for example, path_loss_reference_1 corresponds to SSB1; and path_loss_reference_2 corresponds to SSB2. In the case of uplink transmission by the UE, the network side may instruct the UE to change the path loss reference currently used via MAC CE or the Physical Downlink Control Channel (PDCCH).

[0049] The above path loss value , p0 power value , path loss coefficient , maximum transmission power of the above serving cell Accordingly, a first PH value is obtained. Here, the maximum transmission power of the serving cell is the maximum output power set by the UE to the carrier wave (f) of the serving cell (c) at the time of SRS transmission (i), and this can be agreed upon by the protocol.

[0050] In one embodiment, the first pH value = f ( , , , )am.

[0051] In another embodiment, the first pH value = f ( , , , , ) and here, power control adjustment value It can be 0; in other words, the first PH value is the power control adjustment value It is not related to.

[0052] S404: The terminal device transmits the PH value of the serving cell to the network device, and the PH value is the first PH value of the first SRS and / or the second PH value of the second SRS.

[0053] A network device receives a PH value of a serving cell transmitted by a terminal device, and the PH value is a first PH value of a first SRS and / or a second PH value of a second SRS, and the first SRS is an SRS for positioning.

[0054] The above-described step (S404) may use a description similar to the step (S304) of the embodiment of FIG. 3, and overlapping parts are not further described.

[0055] Accordingly, one embodiment of the present invention provides a method (200) for transmitting power headroom that calculates a path loss value according to the transmission power of a path loss reference signal and the reception power obtained by measuring the path loss reference signal, obtains a first PH value according to the path loss value, p0 power value, path loss coefficient, and the maximum transmission power of the serving cell, and can accurately determine and report a first PH value corresponding to an SRS for positioning, thereby enabling a network device to perform network scheduling, power, or terminal scheduling corresponding to the first PH value.

[0056] As illustrated in FIG. 5, one embodiment of the present invention provides a method (500) for transmitting power headroom, said method may be performed by a terminal device and / or a network device, that is, said method may be performed by software or hardware mounted on a terminal device and / or a network device, said method comprises the following steps.

[0057] S502: The terminal device obtains the first PH value of the first SRS according to the first setting information of the first SRS.

[0058] This step may use a description similar to the step (S402) of the embodiment of FIG. 4, and overlapping parts are not further described.

[0059] In one embodiment, the first setting information is a path loss reference signal, p0 power value , path loss coefficient Includes, wherein the path loss reference signal is a signal transmitted by the target cell, where the target cell is a serving cell and / or neighbor cell.

[0060] In one embodiment, the path loss reference signal includes at least one of an SSB, a CSI reference signal, and a Dl-PRS.

[0061] If the path loss reference signal is an SSB or CSI reference signal, the first setting information further includes transmission power information of the path loss reference signal. If the path loss reference signal is a DL PRS, the transmission power information of the path loss reference signal is determined by the LTE Positioning Protocol (LPP).

[0062] Specifically, the step of obtaining a first PH value according to the first setting information of the SRS for positioning includes the following steps.

[0063] According to the transmission power of the path loss reference signal and the received power obtained by measuring the path loss reference signal, the path loss value Calculate. In one embodiment, the path loss value is the difference between the transmission power of the path loss reference signal and the reception power.

[0064] Here, regarding the path loss reference of the 5G NR system, the network side may set multiple downlink path loss references simultaneously for a single cell, and optionally, each path loss reference may correspond to a different reference signal, for example, path_loss_reference_1 corresponds to SSB1; and path_loss_reference_2 corresponds to SSB2. In the uplink transmission of the UE, the network side may instruct the UE to change the path loss reference currently used through MAC CE or PDCCH (Physical Downlink Control Channel).

[0065] The calculation methods for power and path loss differ between SRS for positioning and SRS for measurement. For SRS for measurement, power is calculated according to the following formula.

[0066] Here, is the maximum transmission power of the above-mentioned serving cell, and is the above p0 power value, and is the path loss coefficient mentioned above, and is the path loss value mentioned above, and is a function that takes bandwidth and subcarrier as variables. The parameters described above are set by the parameters of srs-resourceset.

[0067] In the SRS for positioning, power is calculated according to the following formula.

[0068] Here, is the maximum transmission power of the above-mentioned serving cell, and is the above p0 power value, and is the path loss coefficient mentioned above, and is the path loss value mentioned above, and is a function with bandwidth and subcarrier as variables. The aforementioned parameters are set by the parameters of srs-posresourceset.

[0069] The above path loss value , p0 power value , path loss coefficient , maximum transmission power of the above serving cell Accordingly, a first PH value is obtained. Here, the maximum transmission power of the serving cell is the maximum output power set by the UE to the carrier wave (f) of the serving cell (c) at the time of SRS transmission (i), and the maximum transmission power of the serving cell can be agreed upon by the protocol.

[0070] In one embodiment, the first pH value = f ( , , , ) is. In another embodiment, the first pH value = f ( , , , , ) and here, power control adjustment value It can be 0.

[0071] Depending on whether the uplink physical channel or reference signal is an actual transmission, the uplink supports virtual and actual PHRs. A virtual PHR corresponds to non-transmission of the uplink physical channel or reference signal, and an actual PHR corresponds to actual transmission of the uplink physical channel or reference signal. Based on this, in one embodiment, when the first PH value is an SRS transmission for reference-based positioning, the first PH value is obtained according to the following formula (1).

[0072] (1)

[0073] Here, is the above-mentioned first pH value, and is the maximum transmission power of the above-mentioned serving cell, and is the above p0 power value, and is the above path loss coefficient, and is the path loss value mentioned above.

[0074] Optionally, if the first PH value is an SRS transmission for reference-based positioning, the first PH value is obtained according to the following formula (2). (2)

[0075] Here, is the above-mentioned first pH value, and is the maximum transmission power of the above-mentioned serving cell, and is the above p0 power value, and is the above path loss coefficient, and is the path loss value mentioned above, and is the power control adjustment value, is 0.

[0076] In another embodiment, when the first PH value is an SRS transmission for actual-based positioning, the first PH value can be obtained according to the following formula (3).

[0077] (3)

[0078] Here, is the above-mentioned first pH value, and is the maximum transmission power of the above-mentioned serving cell, and is the above p0 power value, and is the above path loss coefficient, and is the path loss value mentioned above, and is a function that takes bandwidth and subcarrier as variables.

[0079] S504: The terminal device transmits the PH value of the serving cell to the network device, and the PH value is the first PH value of the first SRS and / or the second PH value of the second SRS.

[0080] The network device receives the first PH value of the SRS for positioning transmitted by the terminal device.

[0081] The above-described step (S504) may use a description similar to the step (S304) of the embodiment of FIG. 3, and overlapping parts are not further described.

[0082] Accordingly, one embodiment of the present invention provides a method (500) for transmitting power headroom that calculates a path loss value according to the transmission power of a path loss reference signal and the reception power obtained by measuring the path loss reference signal, obtains a first PH value according to the path loss value, p0 power value, path loss coefficient, and the maximum transmission power of the serving cell, and can accurately determine and report the first PH value of the SRS for positioning so that a network device can perform network scheduling, power or terminal scheduling corresponding to the PH value of the SRS for positioning.

[0083] As illustrated in FIG. 6, one embodiment of the present invention provides a method (600) for transmitting power headroom, said method may be performed by a terminal device and / or a network device, that is, said method may be performed by software or hardware mounted on a terminal device and / or a network device, said method comprises the following steps.

[0084] S602: The terminal device obtains the first PH value of the first SRS according to the first setting information of the first SRS.

[0085] This step may use a description similar to the step (S402) of the embodiment of FIG. 4 or the step (S502) of the embodiment of FIG. 5, and overlapping parts are not further described.

[0086] S604: The terminal device transmits the PH value of the serving cell to the network device, and the PH value is the first PH value of the first SRS and / or the second PH value of the second SRS.

[0087] The network device receives the first PH value of the SRS for positioning transmitted by the terminal device.

[0088] The above-described step (S604) may use a description similar to the step (S304) of the embodiment of FIG. 3, and overlapping parts are not further described.

[0089] S606: The terminal device transmits instruction information to the network device to indicate that the PH value is the first PH value or the second PH value.

[0090] In one embodiment, the instruction information may be transmitted independently or may be transmitted together with other information. As an example of transmission together with other information, assuming that the instruction information is transmitted together with a PH value, the PH value is transmitted to the network device via a MAC CE in step (S604), and the MAC CE further includes a bit for indicating that the PH value is the first PH value or the second PH value, as illustrated in the bit (F) of FIG. 7a. The bit may use the reserve bit (R) of the MAC CE, may use a bit (V) for indicating whether the PH value is based on an actual transmission or reference format, may use a bit (P) for indicating whether the MAC applies power backoff according to power management, may use a federated instruction, or a bit federated with the PH value, or a bit extended with the PH value indicates that the PH value is the first PH value or the second PH value.

[0091] The network device receives instruction information transmitted by the terminal device to indicate that the PH value is the first PH value or the second PH value.

[0092] Accordingly, the network device can distinguish the received PH value as a first PH value or a second PH value and perform corresponding network scheduling, power or terminal scheduling.

[0093] In FIG. 6, step (S606) is described exemplarily after step (S604), but since in actual applications step (S606) may be performed before, after, or simultaneously with step (S604), it should be noted that the exemplary description in FIG. 6 where step (S606) is performed after step (S604) should not be understood as limiting embodiments of the present invention.

[0094] S608: The terminal device transmits relevant information to the network device.

[0095] Specifically, PHR is classified into single PHR and multiple PHR; the former includes only the PH of the primary serving cell (PCell), while the latter includes the Pcell and the secondary cell (SCell). Single-entry PHR MAC CE and multiple-entry PHR MAC CE are used when reporting PHR. For example, when using single-entry PHR MAC CE, at this stage, the UE also [receives] the maximum transmission power of the serving cell to the network device Related information indicating can be reported, for example as illustrated in Fig. 7b.

[0096] As another example, when using a multiple entry PHR MAC CE, the UE can report the following relevant information to the network device.

[0097] Here, the relevant information is intended to indicate at least one of whether the PH field of the target cell index exists, whether the first PH value is an SRS transmission for actual-based positioning, whether the first PH value is an SRS transmission for reference-based positioning, the maximum transmission power (PCMAX,f,c) of the serving cell, and whether the media access control (MAC) applies power backoff according to power management, as illustrated in FIG. 7c or 5d, for example.

[0098] Accordingly, the present embodiment further includes the step of the network device receiving relevant information transmitted by the terminal device. The interaction between the network device and the terminal device described on the network device side is identical to the description on the terminal device side in step (S608), and to avoid duplication, the relevant description is appropriately omitted.

[0099] Likewise, it should be noted that although step (S608) in FIG. 6 is described exemplarily after step (S604) and step (S606), in actual application, step (S608) may be performed before, after, or simultaneously with step (S604) and / or step (S606), so the exemplary description in FIG. 6 where step (S608) is performed after step (S604) and step (S606) should not be understood as limiting embodiments of the invention.

[0100] In addition, in some embodiments, the method for transmitting power headroom includes steps (S602), (S604), and (S606); in other embodiments, it includes steps (S602), (S604), and (S608).

[0101] Accordingly, one embodiment of the present invention provides a method (600) for transmitting instruction information to the network device to indicate that the PH value is the first PH value or the second PH value, and transmitting power headroom capable of determining that the transmitted PH value is the first PH value or the second PH value.

[0102] In each of the above embodiments, the interaction between the network device and the terminal device described on the network device side is identical to the description on the terminal device side, and to avoid duplication, related descriptions are appropriately omitted.

[0103] FIG. 8 is a schematic diagram of the structure of a terminal device according to an embodiment of the present invention. As shown in FIG. 8, the terminal device (800) includes a processing module (810).

[0104] The processing module (810) is for transmitting a power headroom (PH) value of a serving cell to a network device, said PH value is a first PH value of a first sounding reference signal (SRS) and / or a second PH value of a second SRS; wherein the first PH value is obtained according to the first setting information of the first SRS, said first SRS is an SRS for positioning, and said second SRS is an SRS for measurement.

[0105] In one embodiment, the processing module (810) is for transmitting instruction information to the network device indicating that the PH value is the first PH value or the second PH value.

[0106] In one embodiment, the processing module (810) is for transmitting the PH value to the network device through a media access control element (MAC CE).

[0107] In one embodiment, the MAC CE further includes a bit for indicating that the pH value is the first pH value or the second pH value.

[0108] In one embodiment, the first setting information is set in an information unit of an SRS resource set for positioning.

[0109] In one embodiment, the processing module (810) calculates a path loss value according to the transmission power of a path loss reference signal and the reception power obtained by measuring the path loss reference signal; and obtains a first PH value according to the path loss value, the p0 power value, the path loss coefficient, and the maximum transmission power of the serving cell; wherein the first setting information includes the path loss reference signal, the p0 power value, and the path loss coefficient.

[0110] In one embodiment, the processing module (810) is for obtaining a first PH value according to the path loss value, p0 power value, path loss coefficient, maximum transmission power of the serving cell and power control adjustment value, wherein the power control adjustment value is 0.

[0111] In one embodiment, the processing module (810) is for obtaining the first PH value according to the following formula when the first PH value is an SRS transmission for reference-based positioning.

[0112]

[0113] Here, is the above-mentioned first pH value, and is the maximum transmission power of the above-mentioned serving cell, and is the above p0 power value, and is the above path loss coefficient, and is the path loss value mentioned above.

[0114] In one embodiment, the processing module (810) obtains the first PH value according to the following formula when the first PH value is an SRS transmission for actual-based positioning.

[0115]

[0116] Here, is the above-mentioned first pH value, and is the maximum transmission power of the above-mentioned serving cell, and is the above p0 power value, and is the above path loss coefficient, and is the path loss value mentioned above, and is a function that takes bandwidth and subcarrier as variables.

[0117] In one embodiment, the path loss reference signal includes at least one of a synchronization signal block (SSB), a channel state information (CSI) reference signal, and a downlink positioning reference signal (DL-PRS).

[0118] In one embodiment, if the path loss reference signal is an SSB or CSI reference signal, the first setting information further includes transmission power information of the path loss reference signal; and if the path loss reference signal is a DL PRS, the transmission power information of the path loss reference signal is agreed upon by a predetermined protocol.

[0119] In one embodiment, the processing module (810) is for transmitting relevant information indicating at least one of whether the PH field of the target cell index exists in the network device, whether the first PH value is an SRS transmission for actual-based positioning, whether the first PH value is an SRS transmission for reference-based positioning, the maximum transmission power of the serving cell, and whether the media access control (MAC) applies power backoff according to power management.

[0120] A terminal device (800) according to an embodiment of the present invention may refer to a flow performed by the terminal device in a method (100, 300-700) corresponding to an embodiment of the present invention, and each unit / module of the terminal device (800) and other operations and / or functions described above are intended to implement a flow performed by the terminal device in the method (100, 300-700), and may achieve the same or equivalent technical effects, and for brevity, are not further described.

[0121] FIG. 9 is a schematic diagram of the structure of a network device according to an embodiment of the present invention. As shown in FIG. 9, the network device (900) includes an execution module (910).

[0122] The execution module (910) includes an execution module for receiving a power headroom (PH) value of a serving cell transmitted by a terminal device, wherein the PH value is a first PH value of a first sounding reference signal (SRS) and / or a second PH value of a second SRS; wherein the first SRS is an SRS for positioning and the second SRS is an SRS for measurement.

[0123] In one embodiment, the execution module (910) is for receiving instruction information transmitted by the terminal device indicating that the PH value is the first PH value or the second PH value.

[0124] In one embodiment, the execution module (910) is for receiving the PH value transmitted by the terminal device through a media access control element (MAC CE).

[0125] In one embodiment, the MAC CE further includes a bit for indicating that the pH value is the first pH value or the second pH value.

[0126] In one embodiment, the first setting information is set in an information unit of an SRS resource set for positioning.

[0127] In one embodiment, the path loss reference signal includes at least one of a synchronization signal block (SSB), a channel state information (CSI) reference signal, and a downlink positioning reference signal (DL-PRS).

[0128] In one embodiment, if the path loss reference signal is an SSB or CSI reference signal, the first setting information further includes transmission power information of the path loss reference signal.

[0129] In one embodiment, the execution module (910) is for receiving instruction information transmitted by the terminal device indicating that the PH value is the first PH value or the second PH value of the SRS for measurement.

[0130] In one embodiment, the execution module (910) is to receive relevant information indicating at least one of whether the PH field of the target cell index transmitted by the terminal device exists, whether the first PH value is an SRS transmission for actual-based positioning, whether the first PH value is an SRS transmission for reference-based positioning, the maximum transmission power of the serving cell, and whether the media access control (MAC) applies power backoff according to power management.

[0131] A network device (900) according to an embodiment of the present invention may refer to a flow performed by the network device in a method (200, 300-700) corresponding to an embodiment of the present invention, and each unit / module of the network device (900) and other operations and / or functions described above are intended to implement a flow performed by the network device in the method (200, 300-700), and may achieve the same or equivalent technical effects, and for brevity, will not be described further.

[0132] FIG. 10 is a block diagram of a terminal device according to another embodiment of the present invention. The terminal device (1000) illustrated in FIG. 10 includes at least one processor (1001), a memory (1002), at least one network interface (1004), and a user interface (1003). Each assembly of the terminal device (1000) is joined together through a bus system (1005). It can be understood that the bus system (1005) is intended to implement connection communication between these assemblies. In addition to a data bus, the bus system (1005) further includes a power bus, a control bus, and a status signal bus. However, for clarity, in FIG. 10, all various buses are referred to as the bus system (1005).

[0133] Here, the user interface (1003) may include a display, keyboard, or pointing device (e.g., a mouse, trackball, touchpad, or touchscreen).

[0134] It may be understood that in an embodiment of the present invention, the memory (1002) may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Here, the non-volatile memory may be a Read-Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable and Programmable Read-Only Memory (EPROM), an Electrically Erasable and Programmable Read-Only Memory (EEPROM), or a flash memory. The volatile memory may be a Random Access Memory (RAM) used as an external cache. By way of exemplary but non-limiting description, many forms of RAM may be used, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus random access memory (DRRAM). The memory (1002) of the system and method described in the embodiments of the present invention includes, but is not limited to, these and any other suitable type of memory.

[0135] In some embodiments, memory (1002) stores executable modules or data structures, or a subset thereof, or an extended set thereof, such as an operating system (10021) and an application (10022).

[0136] Here, the operating system (10021) includes various system programs such as a framework layer, a core library layer, and a driver layer for implementing various basic services and processing hardware-based tasks. The application (10022) includes various applications such as a media player and a browser for implementing various application services. A program implementing the method of an embodiment of the present invention may be included in the application (10022).

[0137] In an embodiment of the present invention, the terminal device (1000) further includes a computer program that can be stored in memory (1002) and executed on a processor (1001), and when the computer program is executed by the processor (1001), it implements a step of the flow performed by the terminal device of the following method (100, 300-700).

[0138] The method disclosed in the above-described embodiment of the present invention may be applied to a processor (1001) or implemented by the processor (1001). The processor (1001) may be an integrated circuit chip having signal processing capabilities. In the implementation process, each step of the above-described method may be completed by an integrated logic circuit in the hardware or by instructions in the form of software of the processor (1001). The above-described processor (1001) may be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, an individual gate or transistor logic device, or an individual hardware assembly. Each method, step, and logic block diagram disclosed in the embodiment of the present invention may be implemented or executed. The general-purpose processor may be a microprocessor, or the processor may be any conventional processor, etc. The steps of the method disclosed in the embodiments of the present invention may be directly implemented by a hardware decoding processor in conjunction with the steps, or may be implemented by a combination of hardware and software modules of the decoding processor. The software modules may be located in random memory, flash memory, read-only memory, programmable read-only memory, or electrically erased and programmable read-only memory, registers, and computer-readable storage media mature in the art. The computer-readable storage media is located in memory (1002), and the processor (1001) reads information from memory (1002) and completes the steps of the method described above in conjunction with the hardware.Specifically, a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor (1001), a flow is implemented by a terminal device of the following method (100, 300-700).

[0139] It can be understood that the embodiments described in the embodiments of the present invention may be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. In the implementation of hardware, the processing unit may be implemented in one or more Application Specific Integrated Circuits (ASIC), Digital Signal Processing (DSP), Digital Signal Processing Device (DSPD), Programmable Logic Device (PLD), Field-Programmable Gate Array (FPGA), general-purpose processor, controller, microcontroller, microprocessor, other electronic unit for performing the above functions of the present invention, or a combination thereof.

[0140] In software implementation, the technology described in the embodiments of the present invention can be implemented through modules (e.g., processes, functions, etc.) that perform the functions described in the embodiments of the present invention. Software code can be stored in memory and executed by a processor. Memory can be implemented inside or outside the processor.

[0141] The terminal device (1000) can implement each process implemented by the terminal device of the above-described embodiment and can achieve the same or equivalent technical effect, and is not repeated here to avoid duplication.

[0142] Referring to FIG. 11, FIG. 11 is a structural diagram of a network device applied to an embodiment of the present invention, and can implement details of an embodiment of method (400) and achieve the same effect. As shown in FIG. 11, the network device (1100) includes a processor (1101), a transceiver (1102), a memory (1103), and a bus interface, wherein, in an embodiment of the present invention, the network device (1100) further includes a computer program that is stored in the memory (1103) and executable on the processor (1101), and when the computer program is executed by the processor (1101), a step corresponding to the network device of method (200, 300-700) is implemented.

[0143] In FIG. 11, the bus architecture may include any number of interconnected buses and bridges, specifically connected together by various circuits of one or more processors represented by the processor (1101) and memory represented by the memory (1103). The bus architecture may also connect various other circuits together, such as peripheral devices, voltage regulators, and power management circuits, all of which are known in the art and are therefore not further described in this specification. The bus interface provides an interface. The transceiver (1102) may be a plurality of elements including a transmitter and a receiver that provide a unit for communicating with various other devices in a transmission medium.

[0144] The processor (1101) manages the bus architecture and general processing, and the memory (1103) can store data used when the processor (1101) is operating.

[0145] Embodiments of the present invention further provide a computer-readable storage medium, wherein a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor, the process performed by the network device of the embodiment of the method (200, 300-700) described above is implemented, and the same technical effect can be achieved, and to avoid duplication, it is not repeated further here. Here, the computer-readable storage medium described above includes read-only memory (abbreviated as ROM), random access memory (abbreviated as RAM), magnetic disk, or optical disk, etc.

[0146] It should be noted that in this specification, the terms “include,” “include,” or any other variations thereof are intended to encompass non-exclusive inclusions, thereby causing a process, method, article, or apparatus comprising a series of elements to include not only the elements but also additionally include other elements not explicitly listed, or additionally include elements unique to such process, method, article, or apparatus. Unless otherwise limited, the elements defined by the phrase “...including one” do not exclude the existence of separate identical elements in the process, method, article, or apparatus comprising said elements.

[0147] Through the description of the above embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software and a necessary general hardware platform, and of course can also be implemented through hardware, but in many cases, the former is a superior embodiment. Based on this understanding, the technical solution of the present invention, or parts that contribute to the prior art, may be implemented in the form of a software product, said computer software product is stored on a storage medium (e.g., ROM / RAM, magnetic disk, optical disk) and includes several instructions that cause an electronic device (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to perform the method described in each embodiment of the present invention.

[0148] Although embodiments of the present invention have been described in conjunction with the drawings, the present invention is not limited to the specific embodiments described above, and the specific embodiments described above are merely illustrative rather than limiting. Those skilled in the art may, under the guidance of the present invention, form many forms without departing from the spirit of the present invention and the scope protected by the claims, all of which fall under the protection of the present invention.

Claims

Claim 1 A method for transmitting power headroom, performed by a terminal device and including the step of transmitting a power headroom (PH) value of a serving cell to a network device, wherein the PH value is a first PH value of a first sounding reference signal (SRS) and / or a second PH value of a second SRS; wherein the first PH value is obtained according to first setting information of the first SRS and the second PH value is obtained according to second setting information of the second SRS, and the first SRS is an SRS for positioning and the second SRS is an SRS for measurement. Claim 2 A method according to claim 1, further comprising the step of transmitting instruction information to the network device to indicate that the PH value is the first PH value or the second PH value. Claim 3 A method according to claim 1, wherein the step of transmitting a power headroom (PH) value of a serving cell to a network device comprises the step of transmitting the PH value to the network device through a media access control element (MAC CE). Claim 4 In paragraph 3, the method further comprises a bit for indicating that the MAC CE is the first pH value or the second pH value. Claim 5 In claim 1, the method wherein the first setting information is set in an information unit of an SRS resource set for positioning. Claim 6 The method of claim 1 further comprises, prior to the step of transmitting a power headroom (PH) value of a serving cell to a network device, a step of calculating a path loss value according to the transmission power of a path loss reference signal and the reception power obtained by measuring the path loss reference signal; and a step of obtaining a first PH value according to the path loss value, a p0 power value, a path loss coefficient, and the maximum transmission power of the serving cell; wherein the first setting information includes a path loss reference signal, a p0 power value, and a path loss coefficient. Claim 7 In claim 6, the step of obtaining a first PH value according to the path loss value, p0 power value, path loss coefficient, and maximum transmission power of the serving cell comprises the step of obtaining a first PH value according to the path loss value, p0 power value, path loss coefficient, maximum transmission power of the serving cell, and power control adjustment value, wherein the power control adjustment value is 0. Claim 8 In claim 6, the step of obtaining a first power headroom (PH) value according to the path loss value, p0 power value, path loss coefficient, and the maximum transmission power of the serving cell includes, when the first PH value is an SRS transmission for reference-based positioning, the step of obtaining the first PH value according to the following formula, wherein is the above-mentioned first pH value, and is the maximum transmission power of the above-mentioned serving cell, and is the above p0 power value, and is the above path loss coefficient, and is the method that is the path loss value above. Claim 9 In claim 6, the step of obtaining a first power headroom (PH) value according to the path loss value, p0 power value, path loss coefficient, and the maximum transmission power of the serving cell includes, when the first PH value is an SRS transmission for actual-based positioning, the step of obtaining the first PH value according to the following formula, wherein is the above-mentioned first pH value, and is the maximum transmission power of the above-mentioned serving cell, and is the above p0 power value, and is the above path loss coefficient, and is the path loss value mentioned above, and is a method that is a function with bandwidth and subcarrier as variables. Claim 10 A method according to claim 1, further comprising the step of transmitting relevant information indicating at least one of whether a PH field of a target cell index exists in the network device, whether the first PH value is an SRS transmission for actual-based positioning, whether the first PH value is an SRS transmission for reference-based positioning, the maximum transmission power of the serving cell, and whether the Media Access Control (MAC) applies power backoff according to power management. Claim 11 A method for transmitting power headroom, performed by a network device and comprising the step of receiving a power headroom (PH) value of a serving cell transmitted by a terminal device, wherein the PH value is a first PH value of a first sounding reference signal (SRS) and / or a second PH value of a second SRS; wherein the first PH value is obtained according to first setting information of the first SRS and the second PH value is obtained according to second setting information of the second SRS, and the first SRS is an SRS for positioning and the second SRS is an SRS for measurement. Claim 12 A method according to claim 11, further comprising the step of receiving instruction information transmitted by the terminal device to indicate that the PH value is the first PH value or the second PH value. Claim 13 In claim 11, the step of receiving a power headroom (PH) value of a serving cell transmitted by a terminal device comprises the step of receiving the PH value transmitted by the terminal device through a media access control element (MAC CE). Claim 14 A terminal device comprising a memory, a processor, and a computer program stored in the memory and executable by the processor, wherein when the computer program is executed by the processor, the step of a method for transmitting power headroom according to any one of claims 1 to 10 is implemented. Claim 15 A network device comprising a memory, a processor, and a computer program stored in said memory and executable by said processor, wherein when said computer program is executed by said processor, the step of a method for transmitting power headroom according to any one of claims 11 to 13 is implemented. Claim 16 delete Claim 17 delete Claim 18 delete Claim 19 delete Claim 20 delete Claim 21 delete Claim 22 delete Claim 23 delete Claim 24 delete Claim 25 delete Claim 26 delete Claim 27 delete Claim 28 delete Claim 29 delete Claim 30 delete Claim 31 delete Claim 32 delete Claim 33 delete Claim 34 delete Claim 35 delete Claim 36 delete Claim 37 delete Claim 38 delete Claim 39 delete Claim 40 delete Claim 41 delete Claim 42 delete Claim 43 delete Claim 44 delete Claim 45 delete Claim 46 delete Claim 47 delete Claim 48 delete Claim 49 delete

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