Terminal device and network device

Abstract

The embodiments of the present disclosure relate to a communication method, an apparatus, and a computer-readable medium. According to the embodiments of the present disclosure, a terminal device receives at least one setting of a sounding reference signal (SRS) from a first network device, the setting comprising a first setting of a first subband and a second setting of partial sounding. The terminal device determines a size of the second subband based on the first setting and the second setting. The size is a multiple of 4. The terminal device also determines an index of a starting resource block of the second subband. The index of the starting resource block is a multiple of 4. The terminal device transmits an SRS based on the size and index of the second subband to the network device. In this way, partial SRB is supported.

Description

[Technical field]

[0001] TECHNICAL FIELD Embodiments of the present disclosure relate generally to the field of telecommunications, and more particularly to methods, apparatus, and computer storage media for communications. [Background technology]

[0002] With the development of communication technology, several solutions have been proposed to provide efficient and reliable solutions for communication. For example, MIMO (Multi-Input-Multi-Output) has been proposed. MIMO includes features that facilitate the utilization of multiple antenna elements at the base station for both sub-6 GHz and above 6 GHz frequency bands. In addition, a Sounding Reference Signal (SRS) is transmitted in the uplink, which allows the network to estimate the quality of the channel at different frequencies. The SRS is used by the base station to estimate the quality of a wide bandwidth uplink channel other than the one assigned to a particular UE. Summary of the Invention [Problem to be solved by the invention]

[0003] Generally, embodiments of the present disclosure provide a method, apparatus, and computer storage medium for communications. [Means for solving the problem]

[0004] In a first aspect, a communication method is provided, comprising: receiving, in a terminal device, at least one configuration of a sounding reference signal from a network device, the configuration comprising a first configuration of a first subband and a second configuration of partial sounding, determining a size of a second subband based on the first configuration and the second configuration, determining an index of a starting resource block of the second subband, and transmitting, to the network device, a sounding reference signal based on the size and index of the second subband, where the size of the second subband is a multiple of 4 and the index of the starting resource block is a multiple of 4.

[0005] In a second aspect, a communication method is provided, comprising: receiving, in a terminal device, at least one setting of a sounding reference signal from a network device, the setting comprising a first setting of a first subband and a second setting of partial sounding, determining a maximum number of cyclic shifts based on the comb parameters and the second setting, and transmitting, to the network device, a sounding reference signal based on the maximum number of cyclic shifts, the first setting, and the second setting.

[0006] In a third aspect, a communication method is provided, comprising: receiving, in a terminal device, at least one setting of a sounding reference signal from a network device, the setting comprising a first setting of a first subband and a second setting of partial sounding, determining an index of a starting resource block of the second subband based on the first setting, the second setting and an offset, and transmitting the sounding reference signal based on the index to the network device.

[0007] In a fourth aspect, a communication method is provided, comprising: transmitting, in a network device, a configuration of a sounding reference signal comprising a first configuration of a first subband and a second configuration of partial sounding to a terminal device; and receiving, from the terminal device, a sounding reference signal based on a size of the second subband and an index of a starting resource block, where the size of the second subband is a multiple of 4 and the index of the starting resource block is a multiple of 4.

[0008] In a fifth aspect, a communication method is provided, the method comprising: transmitting, in a network device, at least one setting of a sounding reference signal comprising a first setting of a first subband and a second setting of partial sounding to a terminal device; and receiving from the terminal device a sounding reference signal based on a maximum number of cyclic shifts, the first setting, and the second setting.

[0009] In a sixth aspect, a communication method is provided, comprising: transmitting, in a network device, at least one setting of a sounding reference signal to a terminal device, the setting comprising a first setting of a first subband and a second setting of partial sounding; and receiving, from the terminal device, a sounding reference signal based on an index of a starting resource block of the second subband, the index being based on the first setting, the second setting, and an offset.

[0010] In a seventh aspect there is provided a terminal device comprising a processor and a memory coupled to the processor, the memory having instructions stored thereon which, when executed by the processor, cause the terminal device to perform a method according to any of the first, second or third aspects.

[0011] In an eighth aspect there is provided a network device comprising a processor and a memory coupled to the processor, the memory having instructions stored thereon which, when executed by the processor, cause the network device to perform a method according to any of the fourth, fifth or sixth aspects.

[0012] In a ninth aspect, there is provided a computer readable medium having stored thereon instructions which, when executed on at least one processor, cause the at least one processor to perform a method according to the first, second, third, fourth, fifth or sixth aspect of the present disclosure.

[0013] Other features of the present disclosure will become readily apparent from the following description. [Brief description of the drawings]

[0014] The above and other objects, features and advantages of the present disclosure will become more apparent through more detailed description of several embodiments of the present disclosure in the accompanying drawings.

[0015] [Figure 1] FIG. 1 is a schematic diagram of a communication environment in which embodiments of the present disclosure may be implemented.

[0016] [Diagram 2] 1 illustrates a signaling flow for transmitting a sounding reference signal according to some embodiments of the present disclosure.

[0017] [Diagram 3] 1 shows a schematic diagram of a partial sounding reference signal according to some embodiments of the present disclosure.

[0018] [Figure 4] 1 shows a schematic diagram of a partial sounding reference signal according to some embodiments of the present disclosure.

[0019] [Diagram 5] 1 shows a schematic diagram of a partial sounding reference signal according to some embodiments of the present disclosure.

[0020] [Figure 6] 1 shows a schematic diagram of a partial sounding reference signal according to some embodiments of the present disclosure.

[0021] [Figure 7A] FIG. 2 is a schematic diagram of a partial sounding reference signal in accordance with some embodiments of the present disclosure. [Figure 7B] FIG. 2 is a schematic diagram of a partial sounding reference signal in accordance with some embodiments of the present disclosure. [Figure 7C] FIG. 2 is a schematic diagram of a partial sounding reference signal in accordance with some embodiments of the present disclosure.

[0022] [Figure 8] 1 illustrates a signaling flow for transmitting a sounding reference signal according to some embodiments of the present disclosure.

[0023] [Figure 9] 1 illustrates a signaling flow for transmitting a sounding reference signal according to some embodiments of the present disclosure.

[0024] [Figure 10] 1 illustrates a flowchart of an exemplary communication method implemented in a terminal device according to some embodiments of the present disclosure.

[0025] [Figure 11] 1 illustrates a flowchart of an exemplary communication method implemented in a terminal device according to some embodiments of the present disclosure.

[0026] [Figure 12] 1 illustrates a flowchart of an exemplary communication method implemented in a terminal device according to some embodiments of the present disclosure.

[0027] [Figure 13] 1 illustrates a flowchart of an exemplary communication method implemented in a network device, according to some embodiments of the present disclosure.

[0028] [Figure 14]1 illustrates a flowchart of an exemplary communication method implemented in a network device, according to some embodiments of the present disclosure.

[0029] [Figure 15] 1 illustrates a flowchart of an exemplary communication method implemented in a network device, according to some embodiments of the present disclosure.

[0030] [Figure 16] FIG. 1 is a schematic block diagram of an apparatus suitable for practicing embodiments of the present disclosure.

[0031] Throughout the drawings, the same or similar reference numbers represent the same or similar elements. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0032] The principles of the present disclosure will be described with reference to some embodiments. It should be understood that these embodiments are merely described for illustrative purposes to assist those skilled in the art in understanding and implementing the present disclosure, and do not imply any limitations on the scope of the present disclosure. The present disclosure described herein can be implemented in various ways other than those described below.

[0033] In the following description and claims, unless defined otherwise, all technical and scientific terms used have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.

[0034] As used herein, the term "terminal equipment" refers to any device having wireless or wired communication capabilities. Examples of terminal equipment include, but are not limited to, user equipment (UE), personal computers, desktops, mobile phones, mobile phones, smartphones, personal digital assistants (PDAs), portable computers, tablets, wearable devices, internet of things (IoT) devices, internet of everything (IoE) devices, machine type communication (MTC) devices, vehicle-mounted equipment for V2X communication (where X means pedestrian, vehicle, or infrastructure / network), imaging devices such as digital cameras, gaming devices, music storage and playback devices, Internet devices that enable wireless / wired Internet access and browsing, etc. The term "terminal equipment" may be used interchangeably with UE, mobile station, subscriber equipment, mobile terminal, user terminal, or wireless device. Additionally, the term "network equipment" refers to equipment capable of providing or hosting a cell or coverage through which the terminal equipment can communicate. Examples of network devices include, but are not limited to, a Node B (NodeB or NB), an Evolved NodeB (eNodeB or eNB), a next generation NodeB (gNB), a transmit / receive point (TRP), a remote radio unit (RRU), a radio head (RH), a remote radio head (RRH), a femto node, a pico node, or other low power node.

[0035] In one embodiment, the terminal device may be connected to a first network device and a second network device. One of the first network device and the second network device may be a master node, and the other may be a secondary node. The first network device and the second network device may use different radio access technologies (RATs). In one embodiment, the first network device may be a first RAT device, and the second network device may be a second RAT device. In one embodiment, the first RAT device is an eNB, and the second RAT device is a gNB. Information related to the different RATs may be transmitted to the terminal device from at least one of the first network device and the second network device. In one embodiment, the first information may be transmitted from the first network device to the terminal device, and the second information may be transmitted from the second network device directly to the terminal device or via the first network device. In one embodiment, information related to the configuration of the terminal device set by the second network device may be transmitted from the second network device via the first network device. Information related to the reconfiguration of the terminal device set by the second network device may be transmitted from the second network device directly to the terminal device or via the first network device.

[0036] As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms unless the context clearly indicates otherwise. The term "comprises" and variations thereof are interpreted as open ended terms meaning "including, but not limited to." The term "based on" is interpreted as "based at least in part on." The terms "one embodiment" and "one embodiment" are interpreted as "at least one embodiment." The term "another embodiment" is interpreted as "at least one other embodiment." Terms such as "first," "second," and the like may refer to different objects or the same object. The following content may include other definitions, both explicit and implicit.

[0037] In some instances, values, processes or devices are referred to as "optimum," "lowest," "highest," "minimum," "maximum," etc. It is understood that such descriptions are intended to indicate choices among multiple functional alternatives that may be used, and that such choices are not necessarily better, smaller, higher, or more preferred than other choices.

[0038] As used herein, the term "circuitry" may refer to hardware circuits and / or combinations of hardware circuits and software. For example, a circuit may be a combination of analog and / or digital hardware circuits and software / firmware. As a further example, a circuit may be any portion of a hardware processor with software, such as a digital signal processor, software, and memory that work together to perform various functions on a device, such as a terminal device or a network device. In yet another example, a circuit may be a hardware circuit and / or processor, such as a microprocessor or a portion of a microprocessor, that requires software / firmware for operation, but the software may not be present when not required for operation. As used herein, the term circuitry also encompasses merely a hardware circuit or processor, or a portion of a hardware circuit or processor, and its (or their) accompanying software and / or firmware implementations.

[0039] As mentioned above, SRS is proposed. For frequency hopping of SRS, an SRS band / subband configuration is constructed. For aperiodic SRS, only intra-slot hopping is supported, and the number of hopping is limited to 2 or 4. For semi-persistent and periodic SRS, intra-slot and inter-slot or inter-slot hopping is supported.

[0040] If the value of the starting resource block (RB) index is limited to a multiple of 4, the cases available for partial frequency sounding are limited. If the value of the starting RB index is any integer or the minimum of 4, the number of available cases is increased, but on the other hand, there are new values ​​of subbands, e.g., 5, 6, 7, 10, 14, 18, ..., which are not multiples of 4 and are limited in terms of multiplexing (capability) and boundary alignment. If the value of the starting RB index is rounded to a multiple of 4, the boundaries can be aligned in units of 4, and multiplexing with legacy UEs and multiplexing between new UEs is possible, but detailed design considerations are required. In this disclosure, the terms "PRB", "RB", "physical resource block", and "resource block" can be used interchangeably.

[0041] TIFF0007655441000001.tif107168

[0042] To solve at least some of the above problems, a partial SRS solution is needed. According to an embodiment of the present disclosure, a terminal device receives at least one setting of a sounding reference signal (SRS) from a first network device, the setting comprising a first setting of a first subband and a second setting of partial sounding. The terminal device determines a size of the second subband based on the first setting and the second setting. The size is a multiple of 4. The terminal device also determines an index of a starting resource block of the second subband. The index of the starting resource block is a multiple of 4. The terminal device transmits an SRS based on the size and index of the second subband to the network device. In this way, partial SRB is supported.

[0043] 1 shows a schematic diagram of a communication system in which embodiments of the present disclosure may be implemented. The communication system 100, which is part of a communication network, includes terminal devices 110-1, 110-2, ..., 110-N, which may be collectively referred to as "terminal devices 110." The number N may be any suitable integer.

[0044] The communication system 100 further includes a network device 120-1 and a network device 120. In the communication system 100, the network device 120 and the terminal device 110 can communicate data and control information with each other. The number of devices shown in FIG. 1 is shown for illustrative purposes and is not intended to imply any limitation.

[0045] Communications in the communication system 100 may be implemented according to any suitable communication protocol, including, but not limited to, cellular communication protocols such as first generation (1G), second generation (2G), third generation (3G), fourth generation (4G), and fifth generation (5G), wireless local network communication protocols such as Institute of Electrical and Electronics Engineers (IEEE) 802.11, and / or any other protocols now known or developed in the future. Furthermore, communications may utilize any suitable wireless communication technology, including, but not limited to, code division multiple access (CDMA), frequency division multiple access (FDMA), time division multiple access (TDMA), frequency division duplex (FDD), time division duplex (TDD), multiple-input multiple-output (MIMO), orthogonal frequency division multiple access (OFDMA), and / or any other technology now known or developed in the future.

[0046] The embodiments of the present disclosure may be applied to any suitable scenario. For example, the embodiments of the present disclosure may be implemented in a low-capability NR device. Alternatively, the embodiments of the present disclosure may be implemented in any of the following: New Radio (NR) multiple-input and multiple-output (MIMO), NR Sidelink Enhancements, NR systems at frequencies above 52.6 GHz, NR operation extension to 71 GHz, narrow band-Internet of Things (NB-IoT) / enhanced Machine Type Communication (eMTC) in non-terrestrial networks (NTN), NTN, UE power saving enhancements, NR coverage extension, NB-IoT and LTE-MTC, Integrated Access and Backhaul (IAB), NR multicast and broadcast services, or enhanced multi-radio dual connectivity.

[0047] 2 illustrates a signaling chart showing a process 200 between devices, according to some example embodiments of the present disclosure. For discussion purposes only, the process 200 is described with reference to FIG. 1. The process 200 may involve the terminal device 110-1 and the network device 120 of FIG. 1. It should be noted that the process 200 is shown by way of example only and not by way of limitation.

[0048] The network device 120 transmits (2005) at least one configuration of the SRS to the terminal device 110-1. The configuration comprises a first configuration of a first subband and a second configuration of partial sounding. In some embodiments, the first configuration may comprise a number of physical resource blocks. Alternatively, or in addition, the first configuration may comprise a bandwidth parameter (B SRS ) The second setting can include a fractional frequency (P F ) may be provided.

[0049] The terminal device 110-1 determines the size of the second subband based on the first setting and the second setting. The size of the second subband is a multiple of 4. It should be noted that the size of the second subband is not limited to 4 and can be a multiple of any suitable number. The terminal device 110-1 also determines the index of a starting resource block of the second subband. The index of the starting resource block is a multiple of 4. It should be noted that the index of the starting resource block is not limited to 4 and can be a multiple of any suitable number. The terminal device 110-1 transmits an SRS based on the size and index of the second subband to the network device 120. Details of the determination of the index of the second subband and the starting resource block will be described with reference to FIG. 3-7C.

[0050] TIFF0007655441000002.tif75168

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[0052] In some embodiments, the second subband is a second number of resource blocks (RBs) within the first subband having the first number of RBs. In some embodiments, the time and / or frequency resources of the second subband are within the time and / or frequency resources of the first subband. For example, the first number is greater than or equal to the second number. As another example, the first number is greater than or equal to the second number of P F As another example, the first number is two, four, or eight times the second number.

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[0115] 8 illustrates a signaling chart illustrating a process 800 between devices, according to some example embodiments of the present disclosure. For discussion purposes only, the process 800 is described with reference to FIG. 1. The process 800 may involve the terminal device 110-1 and the network device 120 of FIG. 1. It should be noted that the process 800 is by way of example only and not by way of limitation.

[0116] The network device 120 transmits (8005) at least one configuration of the SRS to the terminal device 110-1. The configuration comprises a first configuration of a first subband and a second configuration of partial sounding. In some embodiments, the first configuration may comprise a number of physical resource blocks. Alternatively, or in addition, the first configuration may comprise a bandwidth parameter (B SRS ) The second setting can include a fractional frequency (P F ) may be provided.

[0117] The terminal device 110-1 determines 8010 a maximum number of cyclic shifts based on a comb parameter and a second setting. In some embodiments, the maximum number of cyclic shifts is determined based on a product of a value of the comb parameter and a value of the second setting.

[0118] In some embodiments, the maximum number of cyclic shifts is at least one of: 8 when the comb parameter has a value of 2 and the second setting has a value of 1; 12 when the comb parameter has a value of 2 and the second setting has a value of 2; 6 when the comb parameter has a value of 2 and the second setting has a value of 4, or when the comb parameter has a value of 4 and the second setting has a value of 2; and 3 when the comb parameter has a value of 4 and the second setting has a value of 4, or when the comb parameter has a value of 2 and the second setting has a value of 8, or when the comb parameter has a value of 8 and the second setting has a value of 2.

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Table 1

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Table 2

Table 3

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Table 4

Table 5

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Table 6

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Table 7

Table 8

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Table 9

Table 10

[0125] TIFF0007655441000083.tif15168 [Table 11]

[0126] The terminal device 110-1 transmits an SRS based on the maximum number of cyclic shifts, the first setting, and the second setting (8015).

[0127] 9 illustrates a signaling chart illustrating a process 900 between devices, according to some example embodiments of the present disclosure. For discussion purposes only, the process 900 is described with reference to FIG. 1. The process 900 may involve the terminal device 110-1 and the network device 120 of FIG. 1. It should be noted that the process 900 is by way of example only and not by way of limitation.

[0128] The network device 120 transmits (9005) at least one configuration of the SRS to the terminal device 110-1. The configuration comprises a first configuration of a first subband and a second configuration of partial sounding. In some embodiments, the first configuration may comprise a number of physical resource blocks. Alternatively, or in addition, the first configuration may comprise a bandwidth parameter (B SRS ) The second setting can include a fractional frequency (P F ) may be provided.

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[0130] In some embodiments, N shift may be indicated via at least one of the MAC CE and the DCI.

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[0151] 10 shows a flowchart of an exemplary method 1000 according to an embodiment of the present disclosure. For illustrative purposes only, the method 1000 may be implemented in the terminal device 110-1 shown in FIG.

[0152] In block 1010, the terminal device 110-1 receives at least one configuration of a sounding reference signal from the network device 120, the configuration comprising a first configuration of a first subband and a second configuration of partial sounding. The first configuration comprises a number of physical resource blocks and a bandwidth parameter (B SRS ) The second setting may comprise a fractional frequency (P F ) may be provided.

[0153] In block 1020, the terminal device 110-1 determines a size of a second subband based on the first configuration and the second configuration. The size of the second subband is a multiple of 4. In block 1030, the terminal device 110-1 determines an index of a starting resource block of the second subband. The index of the starting resource block is a multiple of 4.

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[0162] In block 1030, terminal device 110-1 transmits to network device 120 a sounding reference signal based on the size of the second subband and the index.

[0163] 11 illustrates a flowchart of an exemplary method 1100 according to an embodiment of the present disclosure. For illustrative purposes only, the method 1100 may be implemented in the terminal device 110-1 illustrated in FIG.

[0164] In block 1110, terminal device 110-1 receives at least one configuration of a sounding reference signal from network device 120. The at least one configuration comprises a first configuration for a first subband and a second configuration for partial sounding.

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[0178] In block 1130, the terminal device 110-1 transmits to the network device 120 a sounding reference signal based on the maximum number of cyclic shifts, the first setting, and the second setting.

[0179] 12 illustrates a flowchart of an exemplary method 1200 according to an embodiment of the present disclosure. For illustrative purposes only, the method 1200 may be implemented in the terminal device 110-1 illustrated in FIG.

[0180] In block 1210, terminal device 110-1 receives at least one configuration of a sounding reference signal from network device 120. The configuration comprises a first configuration for a first subband and a second configuration for partial sounding.

[0181] In block 1220, the terminal device 110-1 determines an index of a starting resource block of the second subband, where the index is based on the first configuration, the second configuration, and an offset. In some embodiments, the second subband can be determined based on the first configuration and the second configuration. The offset is determined based on at least one of a slot index, a symbol index, a subframe index, a hopping index, and a configuration in downlink control information or a media access control (MAC) control element (CE).

[0182] TIFF0007655441000127.tif17168

[0183] In block 1230, terminal device 110-1 transmits a sounding reference signal based on the index to network device 120.

[0184] 13 illustrates a flowchart of an exemplary method 1300 according to an embodiment of the present disclosure. For illustrative purposes only, the method 1300 may be implemented in the network device 120 illustrated in FIG.

[0185] In block 1310, the network device 120 transmits a configuration of the sounding reference signal to the terminal device 110-1. The configuration comprises a first configuration of a first subband and a second configuration of partial sounding. In some embodiments, the first configuration comprises a number of physical resource blocks and a bandwidth parameter (B SRS ), and the second setting is the fractional frequency (P F ) may be provided.

[0186] In block 1320, the network device 120 receives a sounding reference signal from the terminal device 110-1 based on a size of a second subband and an index of a starting resource block, the size of the second subband being a multiple of 4, and the index of the starting resource block being a multiple of 4.

[0187] 14 illustrates a flow chart of an exemplary method 1400 according to an embodiment of the present disclosure. For illustrative purposes only, the method 1400 may be implemented in the network device 120 illustrated in FIG.

[0188] In block 1410, the network device 120 transmits at least one configuration of the sounding reference signal to the terminal device 110-1. The at least one configuration comprises a first configuration of a first subband and a second configuration of partial sounding. In some embodiments, the maximum number of cyclic shifts can be determined based on a product of a value of the comb parameter and a value of the second configuration. In this case, the maximum number of cyclic shifts is at least one of: 8 when the comb parameter has a value of 2 and the second configuration has a value of 1; 12 when the comb parameter has a value of 2 and the second configuration has a value of 2; 6 when the comb parameter has a value of 2 and the second configuration has a value of 4, or 4 when the comb parameter has a value of 4 and the second configuration has a value of 2; and 3 when the comb parameter has a value of 4 and the second configuration has a value of 4, or 2 when the comb parameter has a value of 2 and the second configuration has a value of 8, or 8 when the comb parameter has a value of 8 and the second configuration has a value of 2.

[0189] Alternatively, or in addition, the maximum number of cyclic shifts may be determined based on a comb parameter and a size of the second subband, the size being determined based on the first setting and the second setting.

[0190] In block 1420, the network device 120 receives a sounding reference signal from the terminal device 110-1 based on the maximum number of cyclic shifts, the first setting, and the second setting.

[0191] 15 illustrates a flowchart of an exemplary method 1500 according to an embodiment of the present disclosure. For illustrative purposes only, the method 1500 may be implemented in the network device 120 illustrated in FIG.

[0192] In block 1510, the network device 120 transmits at least one configuration of the sounding reference signal to the terminal device 110-1. The configuration comprises a first configuration of a first subband and a second configuration of partial sounding. In some embodiments, the second subband can be determined based on the first configuration and the second configuration. In this case, the offset can be determined based on at least one of a slot index, a symbol index, a subframe index, a hopping index, and a configuration in the DCI or MAC CE.

[0193] TIFF0007655441000128.tif17168

[0194] In block 1520, the network device 120 receives from the terminal device 110-1 a sounding reference signal based on an index of a starting resource block of the second subband, the index being based on the first setting, the second setting, and an offset.

[0195] In some embodiments, the terminal device comprises circuitry configured to receive at least one setting of a sounding reference signal from the network device, the setting comprising a first setting for a first subband and a second setting for partial sounding, determine a size of the second subband that is a multiple of four based on the first setting and the second setting, determine an index of a starting resource block of the second subband that is a multiple of four, and transmit a sounding reference signal based on the size and index of the second subband to the network device.

[0196] In some embodiments, the first configuration includes a number of physical resource blocks and a bandwidth parameter (B SRS), and the second setting is the fractional frequency (P F ) is provided.

[0197] TIFF0007655441000129.tif34168

[0198] In some embodiments, the terminal device includes circuitry configured to determine a size of the second subband by at least one of determining a first size of a first portion of the second subband to a top multiple of four or determining a second size of a second portion of the second subband to a bottom multiple of four.

[0199] TIFF0007655441000130.tif21168

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[0210] TIFF0007655441000141.tif48168

[0211] In some embodiments, the terminal device includes circuitry configured to receive at least one setting of a sounding reference signal from the network device, the setting comprising a first setting for a first subband and a second setting for partial sounding, determine a maximum number of cyclic shifts based on the comb parameters and the second setting, and transmit a sounding reference signal based on the maximum number of cyclic shifts, the first setting, and the second setting to the network device.

[0212] In some embodiments, the maximum number of cyclic shifts is determined based on the product of the value of the comb parameter and the value of the second setting.

[0213] In some embodiments, the maximum number of cyclic shifts is at least one of: 8 when the comb parameter has a value of 2 and the second setting has a value of 1; 12 when the comb parameter has a value of 2 and the second setting has a value of 2; 6 when the comb parameter has a value of 2 and the second setting has a value of 4, or when the comb parameter has a value of 4 and the second setting has a value of 2; and 3 when the comb parameter has a value of 4 and the second setting has a value of 4, or when the comb parameter has a value of 2 and the second setting has a value of 8, or when the comb parameter has a value of 8 and the second setting has a value of 2.

[0214] In some embodiments, the maximum number of cyclic shifts is determined based on a comb parameter and a size of the second subband, the size being determined based on the first setting and the second setting.

[0215] In some embodiments, the terminal device includes circuitry configured to receive at least one setting of a sounding reference signal from the network device, the setting comprising a first setting for a first subband and a second setting for partial sounding, determine an index of a starting resource block of the second subband based on the first setting, the second setting and an offset, and transmit a sounding reference signal based on the index to the network device in the terminal device.

[0216] In some embodiments, the second subband is determined based on the first setting and the second setting.

[0217] In some embodiments, the offset is determined based on at least one of a slot index, a symbol index, a subframe index, a hopping index, and a setting in downlink control information or a media access control (MAC) control element (CE).

[0218] TIFF0007655441000142.tif17168

[0219] In some embodiments, the network device comprises circuitry configured to transmit a configuration of a sounding reference signal to a terminal device, the configuration comprising a first configuration of a first subband and a second configuration of partial sounding, and to receive from the terminal device 110-1 a sounding reference signal based on a size of the second subband and an index of a starting resource block, the size of the second subband being a multiple of 4 and the index of the starting resource block being a multiple of 4.

[0220] In some embodiments, the first configuration includes a number of physical resource blocks and a bandwidth parameter (B SRS ), and the second setting is the fractional frequency (P F ) is provided.

[0221] In some embodiments, the network device includes circuitry configured to transmit at least one setting of a sounding reference signal to the terminal device, the setting comprising a first setting for a first subband and a second setting for partial sounding, and to receive from the terminal device a sounding reference signal based on the maximum number of cyclic shifts, the first setting, and the second setting.

[0222] In some embodiments, the maximum number of cyclic shifts is determined based on the product of the value of the comb parameter and the value of the second setting.

[0223] In some embodiments, the maximum number of cyclic shifts is at least one of: 8 when the comb parameter has a value of 2 and the second setting has a value of 1; 12 when the comb parameter has a value of 2 and the second setting has a value of 2; 6 when the comb parameter has a value of 2 and the second setting has a value of 4, or when the comb parameter has a value of 4 and the second setting has a value of 2; and 3 when the comb parameter has a value of 4 and the second setting has a value of 4, or when the comb parameter has a value of 2 and the second setting has a value of 8, or when the comb parameter has a value of 8 and the second setting has a value of 2.

[0224] In some embodiments, the maximum number of cyclic shifts is determined based on a comb parameter and a size of the second subband, the size being determined based on the first setting and the second setting.

[0225] In some embodiments, the network device comprises circuitry configured to transmit at least one setting of a sounding reference signal to a terminal device, the setting comprising a first setting for a first subband and a second setting for partial sounding, and to receive from the terminal device a sounding reference signal based on an index of a starting resource block of the second subband, where the index is based on the first setting, the second setting, and an offset.

[0226] In some embodiments, the second subband is determined based on the first setting and the second setting.

[0227] In some embodiments, the offset is determined based on at least one of a slot index, a symbol index, a subframe index, a hopping index, and a setting in the DCI or MAC CE.

[0228] TIFF0007655441000143.tif17168

[0229] 16 is a schematic block diagram of an apparatus 1600 suitable for implementing embodiments of the present disclosure. The apparatus 1600 may be considered as another exemplary implementation of the network apparatus 120 or the terminal apparatus 110 shown in FIG. 1. Thus, the apparatus 1600 may be implemented in, or at least as part of, the terminal apparatus 110 or the network apparatus 120.

[0230] As shown in the figure, the apparatus 1600 includes a processor 1610, a memory 1620 coupled to the processor 1610, a suitable transmitter (TX) and receiver (RX) 1640 coupled to the processor 1610, and a communication interface connected to the TX / RX 1640. The memory 1610 stores at least a portion of a program 1630. The TX / RX 1640 is for bidirectional communication. The TX / RX 1640 has at least one antenna to facilitate communication, although in practice the access nodes discussed herein may have multiple antennas. The communication interface may represent any interface required for communication with other network elements, such as an X2 interface for bidirectional communication between eNBs, an S1 interface for communication between a Mobility Management Entity (MME) / Serving Gateway (S-GW) and an eNB, an Un interface for communication between an eNB and a Relay Node (RN), or an Uu interface for communication between an eNB and a terminal device.

[0231] The program 1630 may be considered to include program instructions that, when executed by an associated processor 1610, enable the device 1600 to operate in accordance with embodiments of the present disclosure, as discussed herein with reference to FIGS. 2-15. The embodiments of the present disclosure may be implemented by computer software, hardware, or a combination of software and hardware executable by the processor 1610 of the device 1600. The processor 1610 may be configured to implement various embodiments of the present disclosure. Also, the combination of the processor 1610 and the memory 1620 may constitute a processing means suitable for implementing embodiments of the present disclosure.

[0232] The memory 1620 may be of any type suitable for the local technology network and may be implemented by any suitable data storage technology, including, but not limited to, computer-readable non-transitory storage media, semiconductor-based storage devices, magnetic storage devices and systems, optical storage devices and systems, fixed and removable memories, etc. Although only one memory 1620 is shown in the device 1600, multiple physically distinct memory modules may be installed in the device 1600. The processor 1610 may be of any type suitable for the local technology network and may include, but is not limited to, one or more of the following: general purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs), and processors based on multi-core processor configurations. The device 1600 may have multiple processors, for example, application specific integrated circuit chips time-slaved to a clock synchronous with a master processor.

[0233] In general, various embodiments of the present disclosure may be implemented by hardware or special purpose circuits, software, logic, or any combination thereof. Some aspects may be implemented by hardware, and other aspects may be implemented by firmware or software that may be executed by a controller, microprocessor, or other computing device. Various aspects of the embodiments of the present disclosure have been shown and described as block diagrams, flow charts, or illustrated by some other pictorial representation, and it will be understood that the blocks, apparatus, systems, techniques, or methods described herein may be implemented by, for example, but not limited to, hardware, software, firmware, special purpose circuits or logic, general purpose hardware or controller or other computing device, or combinations thereof.

[0234] The present disclosure further provides at least one computer program product tangibly stored in a computer readable non-transitory storage medium. The computer program product includes computer executable instructions, such as instructions included in program modules. The instructions execute on a target real or virtual processor device to perform processes or methods, such as those described above with reference to Figures 2-10. Typically, program modules include routines, programs, libraries, objects, classes, components, data structures, etc. that perform particular tasks or implement particular abstract data types. In various embodiments, the functionality of the program modules may be combined or split among program modules as desired. The machine readable instructions of the program modules may be executed in local or distributed devices. In distributed devices, the program modules may be located in both local and remote storage media.

[0235] The program codes for carrying out the methods of the present disclosure may be written in any combination of one or more programming languages. These program codes may be provided to a processor or controller of a general purpose computer, a special purpose computer or other programmable data processing apparatus, and when the program codes are executed by the processor or controller, the functions / operations specified in the flowcharts and / or block diagrams are performed. The program codes may run entirely on the machine, partially on the machine, as a separate software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0236] The above program code may be embodied on a machine-readable medium, which may be any tangible medium that contains or stores a program for use by or in conjunction with an instruction execution system, apparatus, or device. The machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. The machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Even more specific examples of machine-readable storage media include one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable-programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0237] It should be understood that although operations have been described in a particular order, it is not required that such operations be performed in the particular order or sequence shown, or that all of the operations shown be performed, in order to achieve desired results. In some situations, multitasking and parallel processing may be advantageous. Similarly, although the above discussion includes some specific implementation details, these should not be construed as limitations on the scope of the disclosure, but rather as descriptions of features that may be specific to certain embodiments. Some features that are described in the context of individual embodiments may be implemented in combination in an embodiment. Conversely, various features that are described in the context of an embodiment may be implemented in multiple embodiments separately or in any suitable subcombination.

[0238] Although the present disclosure has been described in language specific to structural features and / or methodological acts, it is to be understood that the present disclosure, as defined by the appended claims, is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.

Claims

1. A formula using a first value m corresponding to a bandwidth of a sounding reference signal (SRS), a second value P F for partial frequency sounding, a third value n, and a fourth value k F [0010] and determining an offset based on the means for determining a frequency domain start position of the SRS based on the offset; means for transmitting the SRS to a network device; A terminal device comprising:

2. The third value n is determined based on a symbol index in the time domain of the resource of the SRS. The terminal device according to claim 1 .

3. The fourth value k F is [0025] Fulfilling 3. The terminal device according to claim 1 or 2.

4. The third value n is [0030] is defined for slots that satisfy The terminal device according to any one of claims 1 to 3.

5. the third value n being based on an SRS counter; The terminal device according to any one of claims 1 to 4.

6. The third value n is [0045] is based on the value of n ＳＲＳ represents the SRS counter, The terminal device according to any one of claims 1 to 5.

7. A means for transmitting setting information of a sounding reference signal (SRS) to a terminal device; A means for receiving the SRS from the terminal device; Equipped with The configuration information includes a first value m corresponding to a bandwidth of the SRS and a parameter indicating a second value P F for partial frequency sounding; The offset is expressed by the formula: [0050] It is based on The start position of the frequency domain of the SRS is based on the offset. Network device.

8. The third value n is determined based on a symbol index in the time domain of the resource of the SRS. The network device according to claim 7.

9. The fourth value k F is [006] Fulfilling 9. A network device according to claim 7 or 8.

10. The third value n is [0070] is defined for slots that satisfy A network device according to any one of claims 7 to 9.

11. the third value n being based on an SRS counter; A network device according to any one of claims 7 to 10.

12. The third value n is [0080] is based on the value of n ＳＲＳ represents the SRS counter, A network device according to any one of claims 7 to 11.

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