Communication method and repeater

Abstract

Embodiments of the present disclosure relate to a communication method, apparatus, and computer-readable medium. The repeater transfers a first reference signal (RS) received from the terminal device to the network device at a first power level. Also, the repeater transfers a second RS received from the terminal device at a second power level. Further, the repeater receives settings regarding power control of the repeater from the network device. In this way, the transmission powers of the repeater and the terminal device can be determined according to the qualities of the two links, respectively.

Description

Technical Field

[0001] Embodiments of the present disclosure generally relate to the field of telecommunications, and more particularly, to a method, apparatus, and computer storage medium for communication based on a network control repeater.

Background Art

[0002] Coverage is a fundamental element in the deployment of mobile phone networks. Mobile phone operators rely on various types of network nodes to provide comprehensive coverage in their deployments. As a result, new types of network nodes have been considered to enhance the flexibility of mobile phone operators' network deployments.

[0003] A network control repeater is an extension of a conventional radio frequency (RF) repeater and has the ability to receive and process side control information from a network. The side control information enables the network control repeater to perform an amplify-and-forward operation more efficiently. Potential advantages may include reduction of unnecessary noise amplification, transmission and reception with better spatial directivity, and simplification of network integration.

Summary of the Invention

Problems to be Solved by the Invention

[0004] Generally, embodiments of the present disclosure provide a method, apparatus, and computer storage medium for communication based on a network control repeater.

Means for Solving the Problems

[0005] In a first aspect, a communication method is provided. The method includes transferring, by a repeater, a first reference signal (RS) received from a terminal device to a network device at a first power level, transferring, by the repeater, a second RS received from the terminal device to the network device at a second power level, and receiving, from the network device, a setting related to power control of the repeater.

[0006] In a second aspect, a communication method is provided. The method includes transmitting, from a network device to a repeater, first information regarding two power levels for transferring a reference signal (RS) of a terminal device, receiving, at two power levels, respectively, a first RS and a second RS of the terminal device transferred by the repeater, determining, based on the first RS and the second RS, settings related to power control of the repeater and the terminal device, respectively, transmitting the setting related to power control of the repeater to the repeater, and transmitting the setting related to power control of the terminal device to the terminal device via the repeater.

[0007] In a third aspect, a communication method is provided. The method includes receiving, at a terminal device, second information regarding two power levels for RS transmission of the terminal device transferred by a repeater, transmitting, at two power levels, the first RS and the second RS to a network device via the repeater, respectively, and receiving, from the network device via the repeater, a setting related to power control of the terminal device.

[0008] In a fourth aspect, a communication method is provided. The method includes, at a repeater, receiving, from a network device, third information regarding a reference signal (RS) of a terminal device to be transmitted to the network device; receiving, according to the third information, the RS of the terminal device via a first link between the terminal device and the repeater; transferring the RS to the network device via a second link between the repeater and the network device; determining, based on the RS, fourth information regarding the quality of the first link; transmitting the fourth information regarding the quality of the first link to the network device; and receiving, from the network device, a setting regarding power control of the repeater.

[0009] In a fifth aspect, a communication method is provided. The method includes transmitting, from a network device to a repeater, third information regarding a reference signal (RS) of a terminal device; receiving, from the repeater, the RS of the terminal device transferred by the repeater and fourth information regarding the quality of a first link between the repeater and the terminal device; determining, based on the RS and the fourth information, settings regarding power control of the repeater and the terminal device, respectively; transmitting the setting regarding power control of the repeater to the repeater; and transmitting the setting regarding power control of the terminal device to the terminal device via the repeater.

[0010] In a sixth aspect, a communication method is provided. The method includes, at a repeater, receiving, from a network device, sixth information regarding a first reference signal (RS) of the repeater; transferring, to the terminal device, seventh information regarding a second RS of the terminal device; transmitting the first RS to the network device based on the sixth information; transferring the second RS from the terminal device to the network device; and receiving, from the network device, a setting regarding power control of the repeater.

[0011] In a seventh aspect, a communication method is provided. The method includes transmitting, from a network device to a repeater, sixth information regarding a first reference signal (RS) of the repeater and seventh information regarding a second RS of a terminal device; receiving the first RS transmitted by the repeater and receiving the second RS relayed by the repeater; determining, based on the first RS and the second RS, settings regarding power control of the repeater and the terminal device, respectively; transmitting the setting regarding power control of the repeater to the repeater; and transmitting the setting regarding power control of the terminal device to the terminal device via the repeater.

[0012] In an eighth aspect, a repeater is provided. The repeater includes a processor configured to cause the repeater to execute a method according to the first aspect, the fourth aspect, or the sixth aspect of the present disclosure.

[0013] In a ninth aspect, a network device is provided. The network device includes a processor configured to cause the network device to execute a method according to the second aspect, the fifth aspect, or the seventh aspect of the present disclosure.

[0014] In a tenth aspect, a terminal device is provided. The terminal device includes a processor configured to cause the terminal device to execute a method according to the third aspect of the present disclosure.

[0015] In an eleventh aspect, a computer-readable medium storing instructions is provided. When the instructions are executed on at least one processor, the instructions cause the at least one processor to execute a method according to the first aspect, the fourth aspect, or the sixth aspect of the present disclosure.

[0016] In a twelfth aspect, a computer-readable medium storing instructions is provided. When the instructions are executed on at least one processor, the instructions cause the at least one processor to execute a method according to the second aspect, the fifth aspect, or the seventh aspect of the present disclosure.

[0017] In a 13th aspect, a computer-readable medium storing instructions is provided. When the instructions are executed on at least one processor, the instructions cause the at least one processor to execute the method according to the 3rd aspect of the present disclosure.

[0018] Other features of the present disclosure should be readily understood through the following description.

Brief Description of the Drawings

[0019] By describing some embodiments of the present disclosure in more detail in the accompanying drawings, the above and other objects, features, and advantages of the present disclosure should become clearer.

[0020]

Figure 1

[0021]

Figure 2

[0022]

Figure 3

[0023]

Figure 4

[0024]

Figure 5

[0025]

Figure 6

[0026]

Figure 7

[0027]

Figure 8

[0028]

Figure 9

[0029]

Figure 10

[0030]

Figure 11

[0031]

Figure 12

[0032]

Figure 13

[0033] Throughout all the drawings, the same or similar reference numerals represent the same or similar elements.

DETAILED DESCRIPTION OF THE INVENTION

[0034] The principles of the present disclosure will be described with reference to several embodiments. These embodiments are described for illustrative purposes only and are useful when those skilled in the art understand and implement the present disclosure, and it should be understood that they do not imply any limitation on the scope of the present disclosure. The present disclosure described herein can be implemented in various ways other than those described below.

[0035] In the following description and claims, unless otherwise defined, 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.

[0036] As used herein, the term "terminal device" refers to any device having a wireless or wired communication function. Examples of terminal devices include user equipment (UE), personal computers, desktops, mobile phones, cellular phones, smartphones, personal digital assistants (PDAs), portable computers, tablets, wearable devices, Internet of Things (IoT) devices, ultra-reliable and low latency communications (URLLC) devices, Internet of Everything (IoE) devices, machine type communication (MTC) devices, vehicle-mounted devices for vehicle-to-everything (V2X) communication (where X means pedestrian, vehicle, or infrastructure / network), devices of spacecraft or aircraft in non-terrestrial networks (NTN) including high altitude platforms (HAP) and satellites that include integrated access and backhaul (IAB) and unmanned aircraft systems (UAS), extended reality (XR) devices including different types of reality such as augmented reality (AR), mixed reality (MR), and virtual reality (VR), unmanned aerial vehicles (UAVs), which are aircraft generally known as drones and do not require a human pilot, devices on high speed trains (HSTs), imaging devices such as digital cameras, sensors, gaming devices, music storage / playback devices, or Internet devices that enable wireless / wired Internet access and browsing, but are not limited thereto.The "terminal device" can further have a multicast / broadcast function and support public safety, mission-critical, V2X applications, transparent IPv4 / IPv6 multicast delivery, IPTV, smart TV, wireless services, wireless software delivery, group communication, and IoT applications. Also, one or more subscriber identity modules (SIMs), known as multi-SIM, may be incorporated. The term "terminal device" can be used interchangeably with UE, mobile station, subscriber equipment, mobile terminal, user terminal, or wireless device.

[0037] The term "network device" refers to a device capable of providing or hosting a cell or coverage with which the terminal device can communicate. Examples of network devices include, but are not limited to, Node B (NodeB or NB), Evolved NodeB (eNodeB or eNB), Next Generation NodeB (gNB), Transmission Reception Point (TRP), Remote Radio Unit (RRU), Radio Head (RH), Remote Radio Head (RRH), IAB node, femto node, low-power nodes such as pico nodes, Reconfigurable Intelligent Surface (RIS), etc.

[0038] The term "network control repeater" or "repeater" refers to a radio frequency (RF) repeater having the ability to amplify and forward a received signal. The network control repeater also has the ability to receive and process side control information from the network. The side control information enables the network control repeater to perform the amplify-and-forward operation more efficiently. Potential advantages may include reduction of unnecessary noise amplification, transmission and reception with better spatial directivity, and simplification of network integration.

[0039] As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The term "comprising" and variations thereof are to be construed as an open-ended term meaning "including, but not limited to". The term "based on" is to be construed as "based at least in part on". The terms "one embodiment" and "an embodiment" are to be construed as "at least one embodiment". The term "another embodiment" is to be construed as "at least one other embodiment". The terms "first", "second", etc. may refer to different objects or the same object. Other definitions, whether explicit or implicit, may be included in the following.

[0040] In some instances, values, procedures, or devices are referred to as "optimal", "lowest", "highest", "minimum", "maximum", etc. Such descriptions are intended to indicate that a selection can be made from among a plurality of functional alternatives that are available, and it will be understood that such selections need not be better, smaller, higher, or more preferred than other selections.

[0041] In one embodiment, when a network control repeater transfers signals between a network device and a terminal device, two links are included in the entire link between the network device and the terminal device. One link is between the network device and the network control repeater, and the other link is between the network control repeater and the terminal device. The gain of the network control repeater may affect the quality of the entire link (such as signal-to-noise ratio (SNR)). Also, the network device may simply determine the SNR of the entire link based on the normal RS from the terminal device via the network control repeater. In that case, the network device may not be able to perform power control for each of the network control repeater and the terminal device. However, the quality of each of the two links may affect the quality of the entire link. Therefore, power control for each of the terminal device and the network control repeater is necessary.

[0042] Embodiments of the present disclosure provide a solution for estimating the quality of two links, and determine the transmission powers of the network control repeater and the terminal device according to the quality of the two links respectively.

[0043] In one aspect, embodiments of the present disclosure provide a solution for estimating the quality by a network control repeater based on the uplink reference signal (RS) setting of the terminal device. In another aspect, embodiments of the present disclosure provide a solution for estimating the noise power of two links based on RS transmission at two power levels. In still another aspect, embodiments of the present disclosure provide a solution for estimating the quality of the link between the network device and the network control repeater based on a dedicated RS set for the network control repeater by the network device.

[0044] The principle and implementation of the present disclosure will be described in detail below with reference to the drawings. Example of communication network

[0045] FIG. 1 shows a schematic diagram of an exemplary communication network 100 capable of implementing some embodiments of the present disclosure. As shown in FIG. 1, the communication network 100 may include a terminal device 110, a network device 120, and a network control repeater 130.

[0046] It should be understood that the number of devices in FIG. 1 is shown for illustrative purposes and does not imply any limitation to the present disclosure. The communication network 100 may include any suitable number of network devices and / or terminal devices suitable for implementing the implementation of the present disclosure.

[0047] As shown in FIG. 1, the network device 110 may communicate with the terminal device 120 via the network control repeater 130. Therefore, there are two links for communication. Link 140-1 is between the network device and the network control repeater. Link 140-2 is between the network control repeater and the terminal device.

[0048] Communications in the communication network 100 may conform to any suitable standard, and the standards include, but are not limited to, the Global System for Mobile Communications (GSM), Long Term Evolution (LTE), LTE Evolution, LTE-Advanced (LTE-A), New Radio (NR), Wideband Code Division Multiple Access (WCDMA), Code Division Multiple Access (CDMA), GSM EDGE Radio Access Network (GERAN), Machine Type Communication (MTC), etc. Embodiments of the present disclosure may be implemented according to any generation of communication protocols known currently or developed in the future. Examples of communication protocols include, but are not limited to, the communication protocols of the first generation (1G), second generation (2G), 2.5G, 2.75G, third generation (3G), fourth generation (4G), 4.5G, fifth generation (5G), 5.5G, 5G-Advanced Network, or sixth generation (6G) network.

[0049] The communication in the direction from the terminal device 110 to the network device 120 is referred to as uplink (UL) communication, and the reverse communication from the network device 120 to the terminal device 110 is referred to as downlink (DL) communication.

[0050] The gain of the network control repeater and the quality of each of the links 140-1 and 140-2 may affect the quality of the entire link. As an example, SNR UL represents the total uplink SNR between the network device 120 and the terminal device 110. SNR ULIt may be determined or estimated by the network device 120 based on a normal RS via the network control repeater 130 from the terminal device 110. G UL represents the gain of the UL transmission of the network control repeater 130, P s,UL represents the uplink transmission power of the terminal device 110. And TIFF2025517233000002.tif613 represents the noise power of link 140-1, TIFF2025517233000003.tif613 represents the noise power of link 140-2, and interference is modeled as noise on the two links. Therefore, the total uplink SNR between the network device 120 and the terminal device 110 can be expressed as follows.

[0051] TIFF2025517233000004.tif954 Exemplary implementation for estimating the quality of two links based on RS transmission at two power levels

[0052] In this aspect, the embodiments of the present disclosure provide a solution for estimating the quality of two links based on UL RS transmission at two power levels. First, the network device may set two power levels for the network control repeater and / or the terminal device. Also, two UL RSs may be set. Each UL RS may be transferred at one power level by the network control repeater and / or transmitted at one power level by the terminal device. Then, the network device may receive two UL RSs at two different power levels. The network device may estimate the quality of the two links based on the two received RSs, and determine the transmission power of the network control repeater and the terminal device according to the quality of the two links, respectively.

[0053] FIG. 2 shows a schematic diagram showing a power control process 200 according to an embodiment of the present disclosure. For the purpose of discussion, the process 200 will be described with reference to FIG. 1. The process 200 may involve the terminal device 110, the network device 120, and the network control repeater 130 shown in FIG. 1.

[0054] As shown in FIG. 2, the network device 120 may transmit a UL RS setting message indicating the RS setting of the terminal device (for example, the terminal device 110) to the network control repeater (for example, the network control repeater 130) (201).

[0055] In some embodiments, the RS setting message may be a setting of SRS or DMRS. It should be understood that this is merely an example and other suitable messages are also possible.

[0056] Continuing with reference to FIG. 3, when the network control repeater 130 receives the RS setting message, it may transmit or forward the RS setting to the terminal device (for example, the terminal device 110) (202).

[0057] Continuing to refer to FIG. 3, the network device 120 may transmit information regarding two power levels of the UL RS (for convenience, also referred to as first information in this specification) to the network control repeater 130 (203). This information indicates the power levels when the network control repeater 130 forwards the UL RS of the terminal device 110 to the network device 120, that is, when the network control repeater 130 forwards the UL RS transmitted from the terminal device 110 to the network device 120.

[0058] Continuing to refer to FIG. 3, the network device 120 may transmit information regarding two power levels of the UL RS (for convenience, also referred to as second information in this specification) to the network control repeater 130 (204). This information indicates the power levels when the terminal device 110 transmits the UL RS to the network control repeater 130. When the network control repeater 130 receives the second information regarding the two power levels of the UL RS of the terminal device 110, it may forward an instruction regarding the two power levels to the terminal device 110 (205).

[0059] In some embodiments, the second information may include information on the SRS resource set and two or more power levels respectively associated with two or more SRS resources. For example, there are two SRS resource sets, such as a first resource set and a second resource set. The first resource set has a power level P 0 And the second resource set has a power level P 1 . One resource within the first resource set may be determined, and another resource within the second resource set may be determined. In some embodiments, the two resources have the same spatial relationship. And the determined resource in the first resource set with the power level P 0 May be for one UL RS. Also, the determined resource in the second resource set with the power level P 1 May be for another UL RS.

[0060] In some embodiments, the second information may include information on the SRS resource set and two or more power levels respectively associated with two or more SRS resources. For example, within the same SRS resource set, there are two SRS resources, such as a first resource and a second resource. The first resource has a power level P 0 . Also, the second resource set has a power level P 1 . The first resource in the first resource set and the power level P 0 May be for one UL RS. Also, the second resource and the power level P 1 May be for another UL RS. In some embodiments, P 0 And P 1 May be two power values. In some embodiments, P 0 May be the power value indicated for the SRS resource set, P 1 May be indicated by the additional power of the resource set, or P 1 May be the P of the SRS resource set 0It may be indicated by an offset associated therewith. In some embodiments, P 1 may be applied to the last resource of the SRS resource set. Also, P 0 may be applied to other SRS resources within the SRS resource set. In some embodiments, P 1 may be indicated by additional power of a dedicated SRS resource, or P 1 may be indicated by an additional power offset related to P 0 of a dedicated SRS resource. In some embodiments, two resources have the same spatial relationship.

[0061] In some embodiments, the second information may include information on the SRS resource and two power levels respectively associated with different symbols within the SRS resource. For example, there is an SRS resource with a symbol length N. The last N / 2 symbols in the SRS resource have a power level P 0 . Also, the remaining symbols in the SRS resource set have a power level P 1 . And the last N / 2 symbols in the SRS resource, whose power level is P 0 , may be for one UL RS. Also, the remaining symbols in the SRS resource set, whose power level is P 1 , may be for another UL RS. In some embodiments, P 0 and P 1 may be indicated by two power values. In some embodiments, P 0 may be indicated by a power value, and P 1 may be indicated by an offset associated with P 0 .

[0062] In some embodiments, the second information may include two different DMRS resources and information on two power levels respectively associated with the two DMRS resources. For example, one DMRS resource is associated with one DMRS symbol. For example, there are two DMRS resources, the first resource is a normal resource for channel estimation indicated by the DMRS usage field in the upper layer parameters, and the second resource is a dedicated resource for noise estimation indicated by the DMRS usage field in the upper layer parameters. Also, the normal resource has a power level P 0 And the dedicated resource has a power level P 1 And the normal resource having a power level P 0 may be for one DMRS or one DMRS symbol. Also, the dedicated resource having a power level P 1 may be for another DMRS or another DMRS symbol.

[0063] In some embodiments, P 0 may be indicated for the normal resource by a power value. Also, P 1 may be indicated for the dedicated resource by a power offset associated with P 0 When the transmission power of the normal resource is less than the maximum transmission power of the associated RS, a positive offset is selected for the dedicated resource for a larger power. When the transmission power of the normal resource is equal to the maximum transmission power of the associated RS, a negative offset is selected for the dedicated resource for a smaller power.

[0064] In some embodiments, P 0 and P 1 may be associated with different methods applied for multiplexing data for the two DMRS resources. For example, P 、 may be associated with a multiplexing method of the muted resource of the DMRS resource. Also, P 0 may be associated with a multiplexing method of the muted resource of the DMRS resource. Also, P 1may be associated with a method for multiplexing data resources of DMRS resources. In some embodiments, P 0 and P 1 can be implicitly indicated via the multiplexing method shown for two DMRS symbols. In some embodiments, signaling may be used to indicate whether two DMRS symbols apply the same multiplexing method to data or different multiplexing methods to data. In some embodiments, the signaling is a field within DCI.

[0065] In some embodiments, the use of DMRS may be determined by DCI or RRC. For example, a new field regarding the use of DMRS may be defined in RRC. The new field in RRC may indicate the DMRS use for channel estimation or the DMRS use for noise estimation. Alternatively, or in addition, a new field for DMRS use may be defined in DCI. The new field in DCI may indicate the DMRS use for channel estimation or the DMRS use for noise estimation. In some embodiments, the indication of DMRS use in DCI may be used instead of the indication in RRC.

[0066] Continuing to refer to FIG. 2, the network control repeater 130 may decode the first information (206) and obtain two power levels for signal transmission.

[0067] Continuing to refer to FIG. 2, the terminal device 110 may decode the second information (207) and obtain two power levels for signal transmission. Then, the terminal device 110 may generate a first RS according to the RS setting and the first power level of the two power levels for signal transmission (208). Then, the terminal device 110 may transmit the generated RS to the network control repeater 130 (209). When the network control repeater 130 receives the RS from the terminal device 110, the network control repeater 130 may transfer the received RS to the network device 120 at the first power level of the two power levels for signal transmission (210).

[0068] Continuing to refer to FIG. 2, the terminal device 110 may generate a second RS according to the RS setting and the second power level among the two power levels for signal transmission (211). Then, the terminal device 110 may transmit the generated second RS to the network control repeater 130 via the RS resource (212). When receiving the RS from the terminal device 110, the network control repeater 130 may transfer the received RS to the network device 120 at the first power level among the two power levels for signal transfer (213).

[0069] In some embodiments, to ensure that the channel variance during the two RS transmissions can be ignored, the time difference between the two transmissions is shorter than a set value or a predefined value.

[0070] Continuing to refer to FIG. 2, when the network device 120 receives two RSs from the network control repeater 130, it may respectively determine the noise power of link 140-1 and link 140-2 (214).

[0071] As an example, TIFF2025517233000005.tif516 represents the total uplink SNR between the network device 120 and the terminal device 110 at the transfer power level P 0 . TIFF2025517233000006.tif516 may be determined by the network device 120 based on the first UL RS received from the terminal device 110. TIFF2025517233000007.tif516 represents the total uplink SNR between the network device 120 and the terminal device 110 at the transfer power level P 1 . TIFF2025517233000008.tif516 may be determined by the network device 120 based on the second UL RS received from the terminal device 110. TIFF2025517233000009.tif512 represents the gain of the network control repeater 130 at the transfer power level P 0 and TIFF2025517233000010.tif512 represents the gain of the network control repeater 130 at the transfer power level P 1 .

[0072] P s,UL represents the uplink transmission power of the terminal device 110 TIFF2025517233000011.tif511 represents the noise power of link 140-2. Also TIFF2025517233000012.tif511 represents the noise power of link 140-1. Therefore TIFF2025517233000013.tif511 and TIFF2025517233000014.tif511 can be determined according to the following formula

[0073] TIFF2025517233000015.tif1056

[0074] TIFF2025517233000016.tif1056

[0075] And the network device 120 TIFF2025517233000017.tif511 and TIFF2025517233000018.tif511 may respectively determine the transmission powers of the network control repeater 130 and the terminal device 110 based thereon

[0076] As another example TIFF2025517233000019.tif516 represents the total uplink SNR between the network device 120 and the terminal device 110 at the transmission power level P 0 . TIFF2025517233000020.tif516 may be determined by the network device 120 based on the first UL RS received from the terminal device 110. TIFF2025517233000021.tif516 represents the total uplink SNR between the network device 120 and the terminal device 110 at the transmission power level P 1 . TIFF2025517233000022.tif516 may be determined by the network device 120 based on the second UL RS received from the terminal device 110. G UL represents the gain of the network control repeater 130. TIFF2025517233000023.tif513 represents the uplink transmission power of the terminal device 110 at the transmission power level P 0 , TIFF2025517233000024.tif513 represents the uplink transmission power of the terminal device 110 at the transmission power level P 1 . TIFF2025517233000025.tif613 represents the noise power of link 140-2. Also, TIFF2025517233000026.tif613 represents the noise power of link 140-1. Therefore, TIFF2025517233000027.tif613, and TIFF2025517233000028.tif613 can be determined according to the following formula.

[0077] TIFF2025517233000029.tif957

[0078] TIFF2025517233000030.tif957

[0079] And the network device 120 TIFF2025517233000031.tif613, and Based on TIFF2025517233000032.tif613, the transmission powers of the network control repeater 130 and the terminal device 110 may be determined respectively. Then, for the terminal device 110 and the network control repeater 130, the network device 120 TIFF2025517233000033.tif613 and Based on TIFF2025517233000034.tif613, settings regarding power control may be determined.

[0080] As another example, both the transfer power of the repeater and the transmission power of the terminal device have two levels. TIFF2025517233000035.tif516 represents the total uplink SNR between the network device 120 and the terminal device 110 at the transmission power level P 0,u and the transfer power P 0,r of the network control repeater 130. TIFF2025517233000036.tif516 may be determined by the network device 120 based on the first UL RS received from the terminal device 110. TIFF2025517233000037.tif516 represents the total uplink SNR between the network device 120 and the terminal device 110 at the transmission power level P 1,u and the transfer power P 1,r of the network control repeater 130. TIFF2025517233000038.tif516 may be determined by the network device 120 based on the second UL RS received from the terminal device 110. TIFF2025517233000039.tif512 represents the gain of the network control repeater 130 at the transfer power level P 0,r and TIFF2025517233000040.tif512 represents the gain of the network control repeater 130 at the transfer power level P 1,r and. TIFF2025517233000041.tif512 represents the transmission power level P0,U represents the uplink transmission power of the terminal device 110 at TIFF2025517233000042.tif513 represents the transmission power level P 1,U of the terminal device 110 at TIFF2025517233000043.tif511 represents the noise power of link 140-2. Also, TIFF2025517233000044.tif511 represents the noise power of link 140-1. Therefore, TIFF2025517233000045.tif511, and TIFF2025517233000046.tif511 can be determined according to the following formula.

[0081] TIFF2025517233000047.tif1055

[0082] TIFF2025517233000048.tif1058

[0083] And the network device 120 TIFF2025517233000049.tif511, and Based on TIFF2025517233000050.tif511, the transmission powers of the network control repeater 130 and the terminal device 110 may be determined respectively. And the network device 120, for the terminal device 110 and the network control repeater 130, TIFF2025517233000051.tif511 and Based on TIFF2025517233000052.tif511, settings regarding power control may be determined.

[0084] In some embodiments, TIFF2025517233000053.tif531, for example, In the case of TIFF2025517233000054.tif735, the network device 120 may prioritize an increase in the transmission power of the network control repeater 130 in order to meet the SNR requirement, and thus the energy of the terminal device can be saved.

[0085] In some embodiments, in the case of TIFF2025517233000055.tif629 or TIFF2025517233000056.tif529, the network device 120 may prioritize an increase in the transmission power of the terminal device 110 in order to meet the SNR requirement, and thus, when considering both the network control repeater and the terminal device, higher energy efficiency is achieved. Alternatively, or in addition, in order to maximize energy efficiency, the power control of the terminal device 110 and the network control repeater 130 may be considered simultaneously. Alternatively, or in addition, a PHR (Power Headroom Report) may be considered. For example, when there is no margin to increase the transmission power for the terminal device 110, the power of the network control repeater 130 may be increased.

[0086] In some embodiments, when the PHR of the terminal device 110 is less than a predefined value or has expired, the PHR may be reported by the network control repeater 130.

[0087] Continuing to refer to FIG. 2, the network device 120 transmits (215) settings regarding power control to the network control repeater 130. Also, the network device 120 transmits (216) settings regarding the power control of the terminal device 110 to the network control repeater 130, and then the network control repeater 130 transfers the settings to the terminal device 110 (217).

[0088] In this way, the quality of the two links can be estimated. Then, the transmission powers of the network control repeater 130 and the terminal device 110 can be determined according to the estimated quality of the two links, respectively.

[0089] In some embodiments, the time interval between two adjacent dedicated RS resources is much longer than the time interval between two adjacent normal RS resources. For example, when the power noise of link 140-1 is more stable than that of link 140-2, the dedicated RS resource may be set only when the power noise of link 140-1 changes, such as when the beam pair of link 140-1 is updated. In some embodiments, the dedicated RS resource is aperiodic for tracking channel fluctuations, while the normal RS resource may be periodic for tracking channel fluctuations caused by the mobility of the terminal device and may have a short period. Therefore, the period between two adjacent dedicated RS resources is much longer than that between two adjacent normal RS resources.

[0090] In some embodiments, the power indication of the network control repeater 130 may use an open-loop method, similar to the power control of the physical random access channel (PRACH). For example, a counter may be indicated by DCI to adjust the power of the network control repeater. In some embodiments, the power of the network control repeater may be based on a predefined or pre-set relationship between the power and the index. For example, multiple power levels may be predefined. Pmax represents the maximum power of the network control repeater 130. Also, b bits may be used in the side control information for power indication. The power from 0 to Pmax may be quantized to 2^b levels. For example, when b = 1, if the indicator shows "0", zero power is used for the repeater, and if the indicator shows "1", the maximum power is used for the repeater. Therefore, on / off information can also be represented. When b = 2, bit 00 represents that the power indication is zero power, that is, turning off the repeater, bit 01 represents power of Pmax / 2, bit 10 represents power of Pmax, and bit 11 is reserved and can be used for the indication of other information. As another example, when b = 3, bit 001 represents power of Pmax / 4, 010 represents power of Pmax / 2, 011 represents power of 3Pmax / 4, 100 represents power of Pmax, and bits 101 to 111 are reserved and can be used for the indication of other information.

[0091] In some embodiments, the power indication of the network control repeater 130 may include a power indication for noise estimation and a power indication for normal signal transfer.

[0092] Note that the power control of the network control repeater 130 can be indicated by the transmission power of the network control repeater 130, or can be indicated by the gain of the network control repeater 130. The maximum power can be the maximum transmission power or the maximum transmission gain of the network control repeater. Also, in the following embodiments, both of these two types of instructions may be used. Exemplary implementation of link quality estimation by a network control repeater based on the RS setting of a terminal device

[0093] In this aspect, embodiments of the present disclosure provide a solution for link quality estimation by a network control repeater based on the uplink RS setting of a terminal device. First, the network control repeater may estimate the quality of the link between the network control repeater and the terminal device based on the received signal related to the RS setting. Then, the network control repeater may report the estimation result to the network device. The network control repeater may also transfer the RS from the terminal device to the network device. The network device may estimate the quality of the two links based on the report and the received RS, and determine the transmission power of the network control repeater and the terminal device respectively according to the quality of the two links.

[0094] FIG. 3 shows a schematic diagram showing a process 300 of the power control process according to an embodiment of the present disclosure. For the purpose of discussion, process 300 will be described with reference to FIG. 1. Process 300 may involve the terminal device 110, the network device 120, and the network control repeater 130 shown in FIG. 1.

[0095] As shown in FIG. 3, the network device 120 may transmit a UL RS setting message indicating the RS setting of the terminal device (for example, the terminal device 110) to the network control repeater (for example, the network control repeater 130) (301).

[0096] In some embodiments, the UL RS configuration message may be a configuration of a sounding reference signal (SRS) or a demodulation reference signal (DMRS). It should be understood that this is merely an example, and other suitable messages are also possible.

[0097] Continuing with reference to FIG. 3, when the network control repeater 130 receives an RS configuration message, it may transfer the UL RS configuration to the terminal device 110 (302).

[0098] Continuing to refer to FIG. 3, the network device 120 may transmit to the network control repeater 130 information on the UL RS (hereinafter also referred to as third information for convenience in this specification) indicating the information on the UL RS set for the terminal device (303).

[0099] In some embodiments, the third information may include a message indicating the configuration of the UL RS (hereinafter also referred to as the first message for convenience in this specification) and a message indicating the scheduling information of the UL RS (hereinafter also referred to as the second message for convenience in this specification).

[0100] In some embodiments, the first message may include resource mapping, a comb configuration when the UL RS is an SRS, a sequence scrambling ID when the UL RS is a DMRS, and an RS port index.

[0101] In some embodiments, the second message may include time advance (TA) information, RS reception slot settings, and / or frequency domain settings (such as sub-carrier space (SCS), bandwidth part (BWP), etc.), cyclic prefix (CP) information. This is just an example, and it should be understood that other suitable messages are also possible.

[0102] In some embodiments, the first message transmitted to the network control repeater 130 is different from the message transmitted to the terminal device 110. For example, some configuration information may be repackaged in a different signaling format. Also, the resources allocated for transmitting the configuration information may be dedicated resources allocated for the information exchange between the network device 120 and the network control repeater 130.

[0103] In some embodiments, the second message transmitted to the network control repeater 130 is different from the message transmitted to the terminal device 110. For example, some scheduling information may be repackaged within the information element. Also, the resources allocated for transmitting the scheduling information may be dedicated resources allocated for the information exchange between the network device 120 and the network control repeater 130.

[0104] Continuing to refer to FIG. 3, the network control repeater 130 may decode the third information of the UL RS (304) to obtain the first message and the second message. Next, the network control repeater 130 may determine the resources and sequences of the UL RS based on the first message and the second message. The UL RS resources are for the terminal device 110 that transmits the RS according to the RS settings.

[0105] Continuing to refer to FIG. 2, the terminal device 110 may generate RS according to the RS setting (305). Then, the terminal device 110 may transmit the RS generated via the RS resource and via the link 140-2 between the terminal device 110 and the network control device 130 to the network control repeater 130 (306).

[0106] In some embodiments, the transmission time of the UL RS at the terminal device 110 may take into account the decoding time of the network control repeater 130 and / or the transmission delay between the network control repeater 130 and the terminal device 110. For example, as shown in FIG. 13, T RP represents the decoding time of the network control repeater, and the starting point of T RP is the time when the network control repeater 130 receives the RS setting. The end point of T RP is equal to or earlier than the time when the network control repeater 130 receives the RS of the terminal device 110. T d2 represents the transmission delay between the network control repeater 130 and the terminal device 110. T P represents the time difference from when the terminal device 110 receives the UL RS setting to when the terminal device 110 transmits the UL RS to the network control device 130. Also, assume that the network device 120 sends 301 and 303 simultaneously. Therefore, as can be seen from FIG. 12, the following conditions may be satisfied.

[0107] TIFF2025517233000057.tif425

[0108] In some embodiments, the network control repeater 130 may report to the network device 120 about its ability to process the third information, and then the network device may determine the transmission time of the RS by the terminal device 110 according to the above conditions.

[0109] When the network control repeater 130 receives the RS from the terminal device 110, it may transfer the RS to the network device 120 (307). Further, the network control repeater 130 may estimate the quality of the link 140-2 between the network control repeater 130 and the terminal device 110 based on the received RS (308).

[0110] In some embodiments, the network control repeater 130 may report to the network device 120 that it has the ability to process the baseband signal of the RS transmitted by the terminal device.

[0111] In some embodiments, the network control repeater 130 may generate information regarding the quality of the link 140-2 (for convenience, also referred to as the fourth information in this specification), and the fourth information may include at least one of the signal-to-interference-and-noise ratio (SINR) or SNR of the link 140-2. It should be understood that this is merely an example and other suitable messages are also possible.

[0112] Continuing to refer to FIG. 3, the network control repeater 130 may transmit the fourth information to the network device 120 (309).

[0113] When the network device 120 receives the RS and the measurement report from the network control repeater 130, it may determine the noise power of the links 140-1 and 140-2 (310).

[0114] For example, SNR UL represents the total uplink SNR between the network device 120 and the terminal device 110. SNR UL may be determined by the network device 120 based on the UL RS received from the terminal device 110. G UL represents the gain of the network control repeater 130, and P s,UL represents the uplink transmission power of the terminal device 110. TIFF2025517233000058.tif613 represents the noise power of link 140-2, which can be determined based on the received fourth information. Also, TIFF2025517233000059.tif613 represents the noise power of link 140-1. Therefore, TIFF2025517233000060.tif613 can be determined according to the following formula.

[0115] TIFF2025517233000061.tif954

[0116] And the network device 120 TIFF2025517233000062.tif613, and Based on TIFF2025517233000063.tif613, the transmission powers of the network control repeater 130 and the terminal device 110 may be determined respectively. And the network device 120 may determine settings regarding the power control of the terminal device 110 and the network control repeater 130.

[0117] In some embodiments, TIFF2025517233000064.tif531, for example, In the case of TIFF2025517233000065.tif735, the network device 120 may give priority to increasing the transmission power of the network control repeater 130 in order to meet the SNR requirement, and thus the energy of the terminal device can be saved.

[0118] In some embodiments, TIFF2025517233000066.tif629 or When TIFF2025517233000067.tif is 529, the network device 120 may prioritize increasing the transmission power of the terminal device 110 to meet the SNR requirement. Therefore, when considering both the network control repeater and the terminal device, higher energy efficiency can be achieved. Alternatively, or in addition, to maximize energy efficiency, the power control of the terminal device 110 and the network control repeater 130 may be considered simultaneously. Alternatively, or in addition, a PHR (Power Headroom Report) may be considered. For example, when there is no margin to increase the transmission power for the terminal device 110, the power of the network control repeater 130 may be increased.

[0119] In some embodiments, when the PHR of the terminal device 110 is less than a predefined value or times out, the PHR may be reported by the network control repeater 130.

[0120] Continuing to refer to FIG. 3, the network device 120 transmits (311) to the network control repeater 130 settings related to the power control of the network control repeater. Also, the network device 120 transmits (312) to the network control repeater 130 settings related to the power control of the terminal device 110. Thereafter, the network control repeater 130 transfers the settings to the terminal device 110 (313).

[0121] In this way, the quality of the two links can be estimated. Also, the transmission powers of the network control repeater 130 and the terminal device 110 can be determined according to the estimated quality of the two links, respectively.

[0122] In some embodiments, the power indication of the network control repeater 130 may use an open-loop method, similar to the power control of the physical random access channel (PRACH). For example, a counter may be indicated by DCI to adjust the power of the network control repeater. In some embodiments, the power of the network control repeater may be based on a predefined or pre-set relationship between the power and the index. For example, a plurality of power levels may be predefined. Pmax represents the maximum power of the network control repeater 130. Also, b bits may be used in the side control information for the power indication. The power from 0 to Pmax may be quantized to 2^b levels. For example, when b = 1, if the indicator shows "0", zero power is used for the repeater, and if the indicator shows "1", the maximum power is used for the repeater. Therefore, it can also represent on / off information. When b = 2, bit 00 represents that the power indication is zero power, that is, turning off the repeater, bit 01 represents power of Pmax / 2, bit 10 represents power of Pmax, and bit 11 is reserved and can be used for indicating other information. As another example, when b = 3, bit 001 represents power of Pmax / 4, 010 represents power of Pmax / 2, 011 represents power of 3Pmax / 4, 100 represents power of Pmax, and bits 101 to 111 are reserved and can be used for indicating other information.

[0123] In some embodiments, the power indication of the network control repeater 130 may include a power indication for noise estimation and a power indication for normal signal transmission.

[0124] Note that the power control of the network control repeater 130 can be indicated by the transmission power of the network control repeater 130, or can be indicated by the gain of the network control repeater 130. The maximum power can be the maximum transmission power or the maximum transmission gain of the network control repeater. Also, in the following embodiments, both of these two types of instructions may be used. Exemplary implementation for estimating the quality of the link between a network device and a network control repeater based on a dedicated RS set for the network control repeater by the network device

[0125] In this aspect, embodiments of the present disclosure provide a solution for estimating the quality of the link between the network device and the network control repeater based on the dedicated RS set for the network control repeater by the network device. First, the network device may set the dedicated RS resource and RS for the network control repeater. Also, the network device may determine the RS setting of the terminal device. Next, the network control repeater generates and transmits a signal according to the dedicated resource and the dedicated RS setting. The terminal device may also transmit RS to the network device via the network control repeater. The network device determines the quality of the two links based on the RS from the terminal device and the RS from the network control repeater, and may determine the transmission power of the network control repeater and the terminal device according to the quality of the two links, respectively.

[0126] FIG. 4 shows a schematic diagram showing a process 400 of the power control process according to an embodiment of the present disclosure. For the purpose of discussion, the process 400 will be described with reference to FIG. 1. The process 400 may involve the terminal device 110, the network device 120, and the network control repeater 130 shown in FIG. 1.

[0127] As shown in FIG. 4, the network device 120 may transmit information regarding the UL RS setting indicating the RS setting of the terminal device (for example, the terminal device 110) to the network control repeater (for example, the network control repeater 130) (401).

[0128] Continuing with reference to FIG. 4, when the network control repeater 130 receives the fifth piece of information, it may transfer the RS setting to the terminal device 110 (402).

[0129] Continuing with reference to FIG. 4, the network device 120 may transmit to the network control repeater 130 another piece of information regarding the UL RS setting (for convenience, also referred to as the seventh piece of information in this specification) indicating the RS setting of the network control repeater 130 (403).

[0130] In some embodiments, the RS setting message may be a setting of SRS or DMRS. It should be understood that this is merely an example and other suitable messages are also possible.

[0131] Continuing with reference to FIG. 4, the network control repeater 130 may generate UL RS according to the seventh piece of information (404). Then, the network control repeater 130 may transmit the RS generated by the network control repeater 130 to the network device 120 (406).

[0132] In some embodiments, the period of RS generation by the network control repeater is longer than the period of UL RS transfer or longer than the period of two UL resources. Alternatively, the time interval between two adjacent RSs generated and transmitted by the network control repeater is longer than the time interval of UL RS transfer or longer than the time interval of two UL resources.

[0133] In some embodiments, the time difference between the transmission of RS and the transfer of RS from the terminal device by the network control repeater is smaller than a predefined value or a preset value.

[0134] In some embodiments, the network control repeater 130 may report to the network device 120 its ability to generate RS signals according to the settings.

[0135] Continuing to refer to FIG. 4, the terminal device 110 may generate UL RS according to the RS setting for the terminal device 110 (405). Then, the terminal device 110 may transmit the RS generated by the terminal device 110 to the network control repeater 130 (407).

[0136] When the network control repeater 130 receives the RS from the terminal device 110, the network control repeater 130 may transfer the RS to the network device 120 (408).

[0137] When the network device 120 receives the RS generated by the network control repeater 130 and the RS generated by the terminal device 110, the network device 120 may determine the quality of the links 140-1 and 140-2 (409).

[0138] For example, SNR UL represents the total uplink SNR between the network device 120 and the terminal device 110. SNR UL may be determined by the network device 120 based on the UL RS generated by the terminal device 110. G UL represents the gain of the network control repeater 130, and P s,UL represents the uplink transmission power of the terminal device 110. TIFF2025517233000068.tif511 represents the noise power of the link 140-2. Also, TIFF2025517233000069.tif511 represents the noise power of the link 140-1 that can be determined based on the UL RS generated by the network control repeater 130. Therefore, TIFF2025517233000070.tif511 can be determined according to the following formula.

[0139] TIFF2025517233000071.tif951

[0140] And the network device 120 TIFF2025517233000072.tif511 and Based on TIFF2025517233000073.tif511, the transmission powers of the network control repeater 130 and the terminal device 110 may be determined respectively. Then, the network device 120 may determine settings regarding the power control of the terminal device 110 and the network control repeater 130.

[0141] In some embodiments, TIFF2025517233000074.tif531, for example, In the case of TIFF2025517233000075.tif735, the network device 120 may give priority to increasing the transmission power of the network control repeater 130 in order to meet the SNR requirement, and thus the energy of the terminal device can be saved.

[0142] In some embodiments, if it is TIFF2025517233000076.tif629 or TIFF2025517233000077.tif529, the network device 120 may give priority to increasing the transmission power of the terminal device 110 in order to meet the SNR requirement, and thus, when considering both the network control repeater and the terminal device, higher energy efficiency can be achieved. Instead, or in addition, in order to maximize energy efficiency, the power control of the terminal device 110 and the network control repeater 130 may be considered simultaneously. Instead, or in addition, the PHR (Power Headroom Report) may be considered. For example, when there is no margin to increase the transmission power for the terminal device 110, the power of the network control repeater 130 may be increased.

[0143] In some embodiments, if the PHR of the terminal device 110 is less than a predefined value or times out, the PHR may be reported by the network control repeater 130.

[0144] Continuing to refer to FIG. 4, the network device 120 transmits (410) settings related to power control to the network control repeater 130. Further, the network device 120 transmits (411) the settings related to the power control of the terminal device 110 to the network control repeater 130, and then the network control repeater 130 transfers the settings to the terminal device 110 (412).

[0145] In this way, the quality of the two links can be estimated. Then, the transmission powers of the network control repeater 130 and the terminal device 110 can be determined according to the estimated quality of the two links, respectively.

[0146] In some embodiments, the power indication of the network control repeater 130 may use an open-loop method, similar to the power control of the Physical Random Access Channel (PRACH). For example, a counter may be indicated by DCI to adjust the power of the network control repeater. In some embodiments, the power of the network control repeater may be based on a predefined or pre-set relationship between the power and the index. For example, a plurality of power levels may be predefined. Pmax represents the maximum power of the network control repeater 130. Also, b bits may be used in the side control information for power indication. The power from 0 to Pmax may be quantized to 2^b levels. For example, when b = 1, if the indicator shows "0", zero power is used for the repeater, and if the indicator shows "1", the maximum power is used for the repeater. Therefore, it can also represent on / off information. When b = 2, bit 00 represents that the power indication is zero power, that is, turning off the repeater, bit 01 represents power of Pmax / 2, bit 10 represents power of Pmax, and bit 11 is reserved and can be used for indicating other information. As another example, when b = 3, bit 001 represents power of Pmax / 4, 010 represents power of Pmax / 2, 011 represents power of 3Pmax / 4, 100 represents power of Pmax, and bits 101 to 111 are reserved and can be used for indicating other information.

[0147] In some embodiments, the power indication of the network control repeater 130 may include a power indication for noise estimation and a power indication for normal signal transfer.

[0148] It should be noted that the power control of the network control repeater 130 can be indicated by the transmission power of the network control repeater 130 or can be indicated by the gain of the network control repeater 130. The maximum power can be the maximum transmission power or the maximum transmission gain of the network control repeater. Also, in the following embodiments, both of these two types of instructions may be used. Exemplary implementation of a method

[0149] Corresponding to the above content, embodiments of the present disclosure provide communication methods implemented by a terminal device and a network device. These methods will be described below with reference to FIGS. 5 to 11.

[0150] FIG. 5 shows an exemplary communication method 500 implemented by a network control repeater according to some embodiments of the present disclosure. For example, method 500 may be executed by a network control repeater 130 as shown in FIG. 1. For the purpose of discussion, method 500 will be described below with reference to FIG. 1. Method 500 may include additional blocks not shown and / or some of the shown blocks may be omitted, and it should be understood that the scope of the present disclosure is not limited in this regard.

[0151] In block 510, the network control repeater 130 transfers the first RS received from the terminal device 110 to the network device 120 at the first power level.

[0152] In block 520, the network control repeater 130 transfers the second RS received from the terminal device 110 to the network device 120 at the second power level.

[0153] In block 530, the network control repeater 130 receives, from the network device 120, a setting regarding the power control of the network control repeater 130.

[0154] In some embodiments, the network control repeater 130 receives first information regarding a first power level and a second power level from the network device 120.

[0155] In some embodiments, the RS includes at least one of a sounding reference signal (SRS) or a demodulation reference signal (DMRS).

[0156] In some embodiments, the network control repeater 130 transfers second information regarding two power levels of the RS transmitted by the terminal device 110 from the network device 120 to the terminal device 110.

[0157] In some embodiments, the second information includes two power level indications associated with at least one of an SRS resource set, an SRS resource, or a symbol of the SRS resource.

[0158] In some embodiments, the power level indication includes at least one of a power value or a power offset set for a resource or a resource set.

[0159] In some embodiments, the SRS resources associated with two power levels have the same spatial relation information.

[0160] In some embodiments, the second information includes two power level indications associated with two DMRS resources or two DMRS symbols.

[0161] In some embodiments, the power level indication includes at least one of a power offset shown, predefined, or set, or a data multiplexing method of a DMRS symbol shown, predefined, or set.

[0162] By method 500, the estimation of the quality of two links can be determined. Then, the transmission powers of network control repeater 130 and terminal device 110 can be determined according to the quality of the two links respectively.

[0163] FIG. 6 shows an exemplary communication method 600 implemented by a network device according to some embodiments of the present disclosure. For example, method 600 may be executed by network device 120 as shown in FIG. 1. For the purpose of discussion, method 600 will be described below with reference to FIG. 1. Method 600 may include additional blocks not shown and / or may omit some of the blocks shown, and it should be understood that the scope of the present disclosure is not limited in this regard.

[0164] In block 610, network device 120 transmits first information regarding two power levels for transferring the reference signal (RS) of terminal device 1110 from the network device to network control repeater 130.

[0165] In block 620, network device 120 receives the first RS of terminal device 110 and the second RS transferred by network control repeater 130 at two power levels respectively.

[0166] In block 630, network device 120 determines settings regarding power control of network control repeater 130 and terminal device 110 respectively based on the first RS and the second RS.

[0167] In block 640, network device 120 transmits the setting regarding power control of network control repeater 130 to network control repeater 130.

[0168] In block 650, network device 120 transmits the setting regarding power control of terminal device 110 to terminal device 110 via network control repeater 130.

[0169] In some embodiments, the network device 120 transmits second information regarding two power levels for RS transmission of the terminal device 110 to the terminal device 110 via the network control repeater 130.

[0170] In some embodiments, the second information includes two power level indications associated with at least one of an SRS resource set, an SRS resource, or an SRS resource symbol.

[0171] In some embodiments, the power level indication includes at least one of a power value or a power offset set for a resource or a resource set.

[0172] In some embodiments, the SRS resources associated with two power levels have the same spatial relationship information.

[0173] In some embodiments, the second information includes two power level indications associated with two DMRS resources or two DMRS symbols.

[0174] In some embodiments, the power level indication includes at least one of a power offset shown, predefined, or set, or a data multiplexing method of a DMRS symbol shown, predefined, or set.

[0175] By method 500, the estimation of the quality of two links can be determined. Then, the transmission powers of the network control repeater 130 and the terminal device 110 can be determined according to the quality of the two links, respectively.

[0176] FIG. 7 shows an exemplary communication method 700 implemented in a terminal device according to some embodiments of the present disclosure. For example, method 700 may be executed by a terminal device 110 as shown in FIG. 1. For the purpose of discussion, method 700 will be described below with reference to FIG. 1. Method 700 may include additional blocks not shown and / or may omit some of the blocks shown, and it should be understood that the scope of the present disclosure is not limited in this regard.

[0177] In block 710, the terminal device 110 receives, from the network control repeater 130, second information regarding two power levels for RS transmission of the terminal device 110.

[0178] In block 720, the terminal device 110 transmits a first RS and a second RS to the network device 120 via the network control repeater 130 at two power levels, respectively.

[0179] In block 730, the terminal device 110 receives, from the network device 120 via the network control repeater 130, settings regarding power control of the terminal device 110.

[0180] In some embodiments, the terminal device 110 transmits the second RS before a certain period after transmitting the first RS, and the certain period is predefined and preset.

[0181] In some embodiments, the RS includes at least one of a sounding reference signal (SRS) or a demodulation reference signal (DMRS).

[0182] In some embodiments, the terminal device determines the use of the DMRS based on downlink control information (DCI) and / or a set radio resource control (RRC) information element.

[0183] By method 700, the estimation of the quality of two links can be determined. Then, the transmission powers of network control repeater 130 and terminal device 110 can be determined according to the quality of the two links respectively.

[0184] FIG. 8 shows an exemplary communication method 800 implemented by a network control repeater according to some embodiments of the present disclosure. For example, method 800 may be executed by network control repeater 130 as shown in FIG. 1. For the purpose of discussion, method 800 will be described below with reference to FIG. 1. Method 800 may include additional blocks not shown and / or may omit some of the blocks shown, and it should be understood that the scope of the present disclosure is not limited in this regard.

[0185] In block 810, network control repeater 130 receives third information regarding the reference signal (RS) of the terminal device transmitted to the network device from the network device.

[0186] In block 820, network control repeater 130 receives the RS of terminal device 110 via the first link between terminal device 110 and network control repeater 130 according to the third information.

[0187] In block 830, network control repeater 130 transfers the RS to network device 120 via the second link between network control repeater 130 and network device 110.

[0188] In block 840, network control repeater 130 determines fourth information regarding the quality of the first link based on the RS.

[0189] In block 850, network control repeater 130 transmits the fourth information regarding the quality of the first link to network device 120.

[0190] In block 860, the network control repeater 130 receives, from a network device, settings regarding power control of the network control repeater 130.

[0191] In some embodiments, the third information includes at least one of RS setting information or RS scheduling information.

[0192] In some embodiments, the RS setting information includes at least one of resource mapping, port index, COM settings, or scrambling ID.

[0193] In some embodiments, the RS scheduling information includes at least one of time advance (TA) information, slot settings, subcarrier spacing, bandwidth part, or cyclic prefix (CP) information.

[0194] In some embodiments, the second information includes at least one of the signal-to-noise ratio (SNR) of the first link, the signal-to-interference-plus-noise ratio (SINR) of the first link, the noise power of the first link, or the power of the noise and interference of the first link.

[0195] In some embodiments, the network control repeater 130 receives the RS after at least a certain period in accordance with the reception of the first information. The certain period is for the network control repeater 130 to process the first information.

[0196] In some embodiments, the RS includes at least one of a sounding reference signal (SRS) or a demodulation reference signal (DMRS).

[0197] In some embodiments, the network control repeater 130 transmits fifth information regarding a certain period to the network device 120. The certain period is the baseband signal processing capability of the RS.

[0198] By method 800, the estimation of the quality of two links can be determined. Then, the transmission powers of the network control repeater 130 and the terminal device 110 can be determined respectively according to the quality of the two links.

[0199] FIG. 9 shows an exemplary communication method 900 implemented by a network device according to some embodiments of the present disclosure. For example, method 900 may be executed by the network device 120 as shown in FIG. 1. For the purpose of discussion, method 900 will be described below with reference to FIG. 1. Method 900 may include additional blocks not shown and / or may omit some of the blocks shown, and it should be understood that the scope of the present disclosure is not limited in this regard.

[0200] In block 910, the network device 120 transmits third information regarding the reference signal (RS) of the terminal device 110 to the network control repeater 130.

[0201] In block 920, the network device 120 receives from the network control repeater 130 the RS of the terminal device 110 transferred by the network control repeater 130 and fourth information regarding the quality of the first link between the network control repeater 130 and the terminal device 110.

[0202] In block 930, the network device 120 determines settings regarding the power control of the network control repeater 130 and the terminal device 110 respectively based on the RS and the fourth information.

[0203] In block 940, the network device 120 transmits the settings regarding the power control of the network control repeater 130 to the network control repeater 130.

[0204] In block 950, the network device 120 transmits settings related to the power control of the terminal device 110 to the terminal device 110 via the network control repeater 130.

[0205] By method 900, the estimation of the quality of two links can be determined. Then, the transmission powers of the network control repeater 130 and the terminal device 110 can be determined according to the quality of the two links, respectively.

[0206] FIG. 10 shows an exemplary communication method 1000 implemented by a network control repeater according to some embodiments of the present disclosure. For example, method 1000 may be executed by the network control repeater 130 as shown in FIG. 1. For the purpose of discussion, method 1000 will be described below with reference to FIG. 1. Method 1000 may include additional blocks not shown and / or may omit some of the blocks shown, and it should be understood that the scope of the present disclosure is not limited in this regard.

[0207] In block 1010, the network control repeater 130 receives sixth information regarding the first reference signal (RS) of the repeater from the network device 120.

[0208] In block 1020, the network control repeater 130 transfers seventh information regarding the second RS of the terminal device 110 to the terminal device 110.

[0209] In block 1030, the network control repeater 130 transmits the first RS to the network device 120 based on the sixth information.

[0210] In block 1040, the network control repeater 130 transfers the second RS from the terminal device 110 to the network device 120.

[0211] In block 1050, the network control repeater 130 receives, from the network device 120, settings regarding power control of the network control repeater 130.

[0212] In some embodiments, the time difference between the transmission of the first RS and the transfer of the second RS is smaller than a predefined threshold or a preset threshold.

[0213] In some embodiments, the network control repeater 130 transmits, to the network device 120, eighth information regarding the RS generation capability of the network control repeater 130.

[0214] By method 1000, the estimation of the quality of two links can be determined. Then, the transmission powers of the network control repeater 130 and the terminal device 110 can be determined respectively according to the quality of the two links.

[0215] FIG. 11 shows an exemplary communication method 1100 implemented by a network device according to some embodiments of the present disclosure. For example, method 1000 may be executed by the network device 120 as shown in FIG. 1. For the purpose of discussion, method 1100 will be described below with reference to FIG. 1. It should be understood that method 1100 may include additional blocks not shown and / or may omit some of the blocks shown, and the scope of the present disclosure is not limited in this regard.

[0216] In block 1110, the network device 120 transmits, to the network control repeater 130, sixth information regarding the first reference signal (RS) of the network control repeater 130 and seventh information regarding the second RS of the terminal device 110.

[0217] In block 1120, the network device 120 receives the first RS transmitted by the network control repeater 130 and receives the second RS transferred by the network control repeater 130.

[0218] In block 1130, the network device 120 determines settings regarding the power control of the network control repeater 130 and the terminal device 110 respectively based on the first RS and the second RS.

[0219] In block 1140, the network device 120 transmits the settings regarding the power control of the network control repeater 130 to the network control repeater 130.

[0220] In block 1150, the network device 120 transmits the settings regarding the power control of the terminal device 110 to the terminal device 110 via the network control repeater 130.

[0221] By method 1100, the estimation of the quality of two links can be determined. And the transmission powers of the network control repeater 130 and the terminal device 110 can be determined respectively according to the quality of the two links.

[0222] It should be understood that the operations of methods 500 - 1100 are the same as those described in relation to FIGS. 2 - 4, and for the sake of brevity, other details will not be repeated here. Exemplary implementation of devices and apparatuses

[0223] FIG. 12 is a schematic block diagram of an apparatus 1200 suitable for implementing embodiments of the present disclosure. The apparatus 1200 can be regarded as a further exemplary implementation of the terminal device 110, the network device 120, and the network control repeater 130 shown in FIG. 1. Therefore, the apparatus 1200 can be implemented in or at least as a part of the terminal device 110, the network device 120, and the network control repeater 130.

[0224] As shown in the figure, the apparatus 1200 includes a processor 1210, a memory 1220 coupled to the processor 1210, a suitable transmitter (TX) and receiver (RX) 1240 coupled to the processor 1210, and a communication interface coupled to the TX / RX 1240. The memory 1210 stores at least a part of the program 1230. The TX / RX 1240 is for bidirectional communication. The TX / RX 1240 has at least one antenna for facilitating communication, but in fact, the access node described in this application may have multiple antennas. The communication interface may represent any interface required for communicating with other network elements, for example, the X2 / Xn interface for bidirectional communication between eNBs / gNBs, the S1 / NG interface for communication between a Mobility Management Entity (MME) / Access and Mobility Management Function (AMF) / SGW / UPF and an eNB / gNB, the Un interface for communication between an eNB / gNB and a relay node (RN), or the Uu interface for communication between an eNB / gNB and a terminal device.

[0225] The program 1230 is considered to include program instructions, and when the program is executed by the associated processor 1210, it enables the apparatus 1200 to operate according to the embodiments of the present disclosure as discussed with reference to FIGS. 2 to 11 herein. The embodiments herein may be implemented by computer software, hardware, or a combination of software and hardware executable by the processor 1210 of the apparatus 1200. The processor 1210 may be configured to implement various embodiments of the present disclosure. Also, the combination of the processor 1210 and the memory 1220 may constitute a processing means 1250 suitable for implementing each embodiment of the present disclosure.

[0226] Memory 1220 may be of any type suitable for a local technical network and may be implemented by any suitable data storage technology (examples include, but are not limited to, computer-readable non-transitory storage media, semiconductor-based storage devices, magnetic storage devices and systems, optical storage devices and systems, fixed memory, and removable memory, etc.). Although only one memory 1220 is shown for device 1200, a plurality of physically different memory modules may be installed in device 1200. Processor 1210 may be of any type suitable for a local technical network and may include, for example, but not be limited to, a general-purpose computer, a dedicated computer, a microprocessor, a digital signal processor (DSP), and a processor based on a multi-core processor configuration, one or more of which may be included. Device 1200 may have a plurality of processors, for example, an application-specific integrated circuit chip that is temporally dependent on a clock synchronized with a main processor.

[0227] In some embodiments, the repeater includes a circuit configured to receive, from the network device, first information regarding two power levels for transferring a reference signal (RS) of the terminal device, and transfer, to the network device at the two power levels, a first RS transmitted by the terminal device and a second RS transmitted by the terminal device, and receive a setting regarding power control of the repeater from the network device.

[0228] In some embodiments, the network device includes a circuit configured to transmit, to the repeater from the network device, first information regarding two power levels for transferring a reference signal (RS) of the terminal device, receive, at the two power levels, the first RS of the terminal device transferred by the repeater and the second RS, determine settings regarding power control of the repeater and the terminal device respectively based on the first RS and the second RS, transmit the setting regarding power control of the repeater to the repeater, and transmit the setting regarding power control of the terminal device to the terminal device via the repeater.

[0229] In some embodiments, the terminal device receives second information regarding two power levels for RS transmission of the terminal device from the repeater, transmits the first RS and the second RS to the network device via the repeater at the two power levels respectively, and includes a circuit configured to receive a setting regarding power control of the terminal device from the network device via the repeater.

[0230] In some embodiments, the repeater receives third information regarding a reference signal (RS) of the terminal device transmitted to the network device from the network device, receives the RS of the terminal device via a first link between the terminal device and the repeater according to the third information, transfers the RS to the network device via a second link between the repeater and the network device, determines fourth information regarding the quality of the first link based on the RS, transmits the fourth information regarding the quality of the first link to the network device, and includes a circuit configured to receive a setting regarding power control of the repeater from the network device.

[0231] In some embodiments, the network device transmits third information regarding a reference signal (RS) of the terminal device to the repeater, receives the RS of the terminal device transferred by the repeater and fourth information regarding the quality of the first link between the repeater and the terminal device from the repeater, determines settings regarding power control of the repeater and the terminal device respectively based on the RS and the fourth information, transmits the setting regarding power control of the repeater to the repeater, and includes a circuit configured to transmit the setting regarding power control of the terminal device to the terminal device via the repeater.

[0232] In some embodiments, the repeater receives sixth information regarding a first reference signal (RS) of the repeater from the network device, transfers seventh information regarding a second RS of the terminal device to the terminal device, transmits the first RS to the network device based on the sixth information, transfers the second RS from the terminal device to the network device, and includes a circuit configured to receive a setting regarding power control of the repeater from the network device.

[0233] In some embodiments, the network device transmits to the repeater the sixth information regarding the first reference signal (RS) of the repeater and the seventh information regarding the second RS of the terminal device, receives the first RS transmitted by the repeater, receives the second RS forwarded by the repeater, determines settings regarding power control of the repeater and the terminal device respectively based on the first RS and the second RS, transmits the settings regarding power control of the repeater to the repeater, and is configured to transmit the settings regarding power control of the terminal device to the terminal device via the repeater, and includes a circuit configured as such.

[0234] As used herein, the term "circuit" may mean a hardware circuit and / or a combination of a hardware circuit and software. For example, a circuit may be a combination of an analog hardware circuit and / or a digital hardware circuit and software / firmware. As a further example, a circuit may be any part of a hardware processor with software, such as a digital signal processor, software, and memory that cooperate to perform various functions in a device such as a terminal device or a network device. In yet another example, a circuit may be a hardware circuit and / or a processor, such as a microprocessor or a part of a microprocessor, that requires software / firmware for operation but may not have software when not required for operation. As used herein, the term circuit encompasses merely a hardware circuit or a processor, or a part of a hardware circuit or a processor, and the implementation of its (or their) accompanying software and / or firmware.

[0235] In summary, the embodiments of the present disclosure can provide the following solutions.

[0236] A communication method includes transferring, by a repeater, a first RS received from a terminal device to a network device at a first power level, transferring, by the repeater, a second RS received from the terminal device at a second power level, and receiving, by the repeater, settings regarding power control of the repeater from the network device.

[0237] The above method further includes receiving, from a network device, first information regarding a first power level and a second power level.

[0238] In the above method, the RS includes at least one of a sounding reference signal (SRS) or a demodulation reference signal (DMRS).

[0239] The above method further includes transferring, to a terminal device, second information regarding two power levels of the RS transmitted by the terminal device from the network device.

[0240] In the above method, the second information includes two power level indications associated with at least one of an SRS resource set, an SRS resource, or a symbol of an SRS resource.

[0241] In the above method, the power level indication includes at least one of a power value or a power offset set for a resource or a resource set.

[0242] In the above method, the SRS resources associated with two power levels have the same spatial relation information.

[0243] In the above method, the second information includes two power level indications associated with two DMRS resources or two DMRS symbols.

[0244] In the above method, the power level indication includes at least one of a shown, predefined, or set power offset, or a shown, predefined, or set data multiplexing method of a DMRS symbol.

[0245] The communication method includes: transmitting, from a network device to a repeater, first information regarding two power levels for transferring a reference signal (RS) of a terminal device; receiving, at two power levels, respectively, a first RS of the terminal device transferred by the repeater and a second RS; determining, based on the first RS and the second RS, settings regarding power control of the repeater and the terminal device, respectively; transmitting the setting regarding power control of the repeater to the repeater; and transmitting the setting regarding power control of the terminal device to the terminal device via the repeater.

[0246] The above method further includes transmitting, to the terminal device via the repeater, second information regarding two power levels for RS transmission of the terminal device.

[0247] In the above method, the second information includes two power level indications associated with at least one of a sounding reference signal (SRS) resource set, an SRS resource, or a symbol of an SRS resource.

[0248] In the above method, the power level indication includes at least one of a power value, or a power offset set for a resource or a resource set.

[0249] In the above method, the SRS resources associated with two power levels have the same spatial relation information.

[0250] In the above method, the second information includes two power level indications associated with two demodulation reference signal (DMRS) resources or two DMRS symbols.

[0251] In the above method, the power level indication includes at least one of a shown, or predefined, or set power offset, or a shown, or predefined, or set data multiplexing method of a DMRS symbol.

[0252] The communication method includes, in a terminal device, receiving, from a repeater, second information regarding two power levels for RS transmission of the terminal device; transmitting a first RS and a second RS to a network device via the repeater at the two power levels respectively; and receiving, from the network device via the repeater, a setting regarding power control of the terminal device.

[0253] The above method further includes transmitting the second RS before a certain period after transmitting the first RS, where the certain period is predefined and preset.

[0254] In the above method, the RS includes at least one of a sounding reference signal (SRS) or a demodulation reference signal (DMRS).

[0255] The above method further includes determining the use of the DMRS according to downlink control information (DCI) and / or a set radio resource control (RRC) information element.

[0256] The communication method includes, in a repeater, receiving, from a network device, third information regarding a reference signal (RS) of a terminal device to be transmitted to the network device; receiving the RS of the terminal device via a first link between the terminal device and the repeater according to the third information; transferring the RS to the network device via a second link between the repeater and the network device; determining, based on the RS, fourth information regarding the quality of the first link; transmitting the fourth information regarding the quality of the first link to the network device; and receiving, from the network device, a setting regarding power control of the repeater.

[0257] In the above method, the third information includes at least one of RS setting information or RS scheduling information.

[0258] In the above method, the configuration information of the RS includes at least one of resource mapping, port index, COM configuration, or scrambling ID.

[0259] In the above method, the scheduling information of the RS includes at least one of time advance (TA) information, slot configuration, subcarrier spacing, bandwidth part, or cyclic prefix (CP) information.

[0260] In the above method, the second information includes at least one of the signal-to-noise ratio (SNR) of the first link, the signal-to-interference-plus-noise ratio (SINR) of the first link, the noise power of the first link, or the power of the noise and interference of the first link.

[0261] In the above method, receiving the RS includes receiving the RS at least after a certain period according to the reception of the first information, and the certain period is for the repeater to process the first information.

[0262] In the above method, the RS includes at least one of a sounding reference signal (SRS) or a demodulation reference signal (DMRS).

[0263] The above method further includes transmitting, by the network device, fifth information regarding a certain period, and the certain period is the baseband signal processing capability of the RS.

[0264] The communication method includes: transmitting, from a network device to a repeater, third information regarding a reference signal (RS) of a terminal device; receiving, from the repeater, the RS of the terminal device transferred by the repeater and fourth information regarding the quality of a first link between the repeater and the terminal device; respectively determining settings regarding power control of the repeater and the terminal device based on the RS and the fourth information; transmitting the setting regarding power control of the repeater to the repeater; and transmitting the setting regarding power control of the terminal device to the terminal device via the repeater.

[0265] In the repeater, the communication method includes: receiving, from a network device, sixth information regarding a first reference signal (RS) of the repeater; transferring, to the terminal device, seventh information regarding a second RS of the terminal device; transmitting the first RS to the network device based on the sixth information; transferring the second RS from the terminal device to the network device; and receiving, from the network device, a setting regarding power control of the repeater.

[0266] In the above method, the time difference between the transmission of the first RS and the transfer of the second RS is smaller than a predefined threshold or a preset threshold.

[0267] The above method further includes transmitting, to the network device, eighth information regarding the RS generation capability of the repeater.

[0268] The communication method includes: transmitting, from a network device to a repeater, sixth information regarding a first reference signal (RS) of the repeater and seventh information regarding a second RS of the terminal device; receiving the first RS transmitted by the repeater and receiving the second RS transferred by the repeater; respectively determining settings regarding power control of the repeater and the terminal device based on the first RS and the second RS; transmitting the setting regarding power control of the repeater to the repeater; and transmitting the setting regarding power control of the terminal device to the terminal device via the repeater.

[0269] The communication method includes, in a terminal device, receiving information regarding the RS of the terminal device from a network device via a repeater, transmitting the RS to the network device via the repeater, and receiving settings regarding power control of the terminal device from the network device via the repeater.

[0270] The repeater includes a processor configured to cause the repeater to execute the above-described method.

[0271] The network device includes a processor configured to cause the network device to execute the above-described method.

[0272] The terminal device includes a processor configured to cause the terminal device to execute the above-described method.

[0273] In general, various embodiments of the present disclosure may be implemented by hardware or dedicated 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 can be executed by a controller, a microprocessor, or other computing device. Various aspects of the embodiments of the present disclosure are illustrated and described as block diagrams, flowcharts, or by some other pictorial representation, and the blocks, devices, systems, techniques, or methods described herein may be implemented, for example, by hardware, software, firmware, dedicated circuits or logic, general-purpose hardware or a controller or other computing device, or a combination thereof, but are not limited thereto, as will be understood.

[0274] The present disclosure further provides at least one computer program product tangibly stored on a computer-readable non-transitory memory medium. The computer program product includes computer-executable instructions such as instructions included in program modules. The instructions are executed on a device on a target physical processor or virtual processor to execute a process or method as described above with reference to FIGS. 2 to 11. Usually, program modules include routines, programs, libraries, objects, classes, components, data structures, etc. that perform specific tasks or implement specific abstract data types. In various embodiments, the functions of program modules may be combined or divided among program modules as needed. The machine-readable instructions of program modules may be executed within a local or distributed device. In a distributed device, program modules may be located on both local and remote storage media.

[0275] The program code for executing the method of the present disclosure may be described by 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 dedicated computer, or other programmable data processing devices. When the program code is executed by the processor or controller, the functions / operations defined in the flowchart and / or block diagram are implemented. The program code may be executed entirely on a machine, partially on a machine, executed as an independent software package, partially executed on a machine and partially executed on a remote machine, or entirely executed on a remote machine or server.

[0276] The above program code may be embodied on a machine-readable medium, which may be any tangible medium that includes or stores a program for use by or in connection 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. More specific examples of the machine-readable storage medium include an electrical connection including 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.

[0277] Note that although the operations have been described in a particular order, it should be understood that in order to obtain the desired results, these operations may be performed in the particular order shown or sequentially, or that all of the operations shown may be required to be performed. In some situations, multitasking and parallel processing may be advantageous. Similarly, although the above discussion includes some specific implementation details, these are not limitations on the scope of the present disclosure, but rather explanations of features that may be specific to particular embodiments. Some features described in the context of individual embodiments may be implemented in combination in one embodiment. Conversely, each of the various features described in the context of one embodiment may be implemented separately in a plurality of embodiments, or in any suitable sub-combination.

[0278] Although the present disclosure has been described in terms of words specific to structural features and / or methodological acts, it is to be understood that the disclosure 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. transferring a first reference signal (RS: Reference Signal) received from a terminal device to a network device at a first power level by a repeater; transferring a second RS received from the terminal device to the network device at a second power level by the repeater; receiving, from the network device, a setting related to power control of the repeater; comprising a communication method.

2. further comprising receiving, from the network device, first information regarding the first power level and the second power level; The method according to claim 1.

3. The RS is a sounding reference signal (SRS: Sounding Reference Signal), or a demodulation reference signal (DMRS: DeMmodulation Reference Signal) including at least one of The method according to claim 1.

4. further comprising transferring, to the terminal device, second information regarding two power levels of an RS transmitted by the terminal device from the network device; The method according to claim 1.

5. The second information is an SRS resource set, an SRS resource, or symbols of an SRS resource including two power level indications associated with at least one of The method according to claim 4.

6. The power level indication is a power value, or a power offset set for a resource or a resource set including at least one of The method according to claim 5.

7. The SRS resources associated with the two power levels have the same spatial relation information; The method according to claim 5.

8. The second information includes two power level indications associated with two DMRS resources or two DMRS symbols; The method according to claim 4.

9. The power level indication is a shown, predefined, or set power offset, or a data multiplexing method of a DMRS symbol shown, predefined, or set including at least one of The method according to claim 8.

10. transmitting, from the network device to the repeater, first information regarding two power levels for transferring a reference signal (RS: Reference Signal) of a terminal device; Receiving, by the repeater, the first RS and the second RS of the terminal device at the two power levels respectively; Determining, based on the first RS and the second RS, settings related to power control of the repeater and the terminal device respectively; Transmitting the settings related to the power control of the repeater to the repeater; Transmitting the settings related to the power control of the terminal device to the terminal device via the repeater; including A communication method.

11. Further including transmitting, to the terminal device via the repeater, second information regarding two power levels for RS transmission of the terminal device; The method according to claim 10.

12. The second information is SRS resource set, SRS resource, or symbols of SRS resources including two power level indications associated with at least one of them; The method according to claim 11.

13. The power level indication is power value, or power offset set for a resource or a resource set including at least one of them; The method according to claim 12.

14. The second information includes two power level indications associated with two DMRS resources or two DMRS symbols; The method according to claim 11.

15. The power level indication is indicated, or predefined, or set power offset, or indicated, or predefined, or set data multiplexing method of DMRS symbols including at least one of them; The method according to claim 14.

16. In a terminal device, receiving, from a repeater, second information regarding two power levels for RS transmission of the terminal device; Transmitting the first RS and the second RS to a network device via the repeater at the two power levels respectively; Receiving, from the network device via the repeater, settings related to power control of the terminal device; including A communication method.

17. Further including transmitting the second RS before a certain period after transmitting the first RS, wherein the certain period is predefined and preset; The method according to claim 16.

18. The RS is sounding reference signal (SRS), or A method according to claim 16, comprising at least one of a demodulation reference signal (DMRS). Among them, including at least one of The method according to claim 16.

19. The method according to claim 18, further comprising determining the use of the DMRS by downlink control information (DCI) and / or a configured radio resource control (RRC) information element. The method according to claim 18.

20. A repeater, comprising A processor configured to cause the repeater to execute the method according to any one of claims 1 to 9. Repeater

Images