Sub-band allocation for sub-networks

Abstract

Embodiments of the present disclosure relate to solutions for sub-band allocation. Specifically, the transmission and reception schemes implement an enhanced distributed sub-band allocation for sub-networks. In this way, it can avoid the large feedback overhead of sub-band allocation schemes. Furthermore, it can also achieve good performance.

Description

Technical Field

[0001] Embodiments of this disclosure generally relate to the telecommunications field, and more particularly to apparatus, methods, devices, and computer-readable storage media for subband allocation in a subnetwork. Background Technology

[0002] Subnetworks within X (also referred to as subnetworks below) have been proposed as promising components to meet the extreme performance requirements in terms of latency, reliability, and / or throughput envisioned for certain short-range scenarios in 6G radio access technologies. For example, subnetworks can be installed in specific entities, such as within production modules, vehicles, bodies, or buildings, to provide life-critical data services with extreme performance over local micro-coverage. Summary of the Invention

[0003] Overall, the exemplary embodiments of this disclosure provide a solution for subband allocation in subnetworks.

[0004] In a first aspect of this disclosure, an apparatus is provided. The apparatus includes at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus to: transmit a first reference signal to at least one device in a first subnetwork over a first set of reference signal resources on a first subband, wherein the first subband includes a first set of frequency and time resources for transmission within the subnetwork; perform an interference power measurement on a second reference signal from a second subnetwork of a radio access network over a second set of reference signal resources on the first subband; determine weighted interference based on the interference power measurement; and determine a second subband for transmission within the first subnetwork based on the weighted interference, wherein the second subband includes a second set of frequency and time resources.

[0005] In a second aspect of this disclosure, an apparatus is provided. The apparatus includes at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus to: perform an interference power measurement on a first reference signal from a second subnetwork of a radio access network on a first set of reference signal resources on a first subband, wherein the first subband includes a first set of frequency and time resources for subnetwork transmission; transmit a pre-coded reference signal to an access point in the first subnetwork on a second set of reference signal resources on the first subband; and determine weighted interference based on the interference power measurement.

[0006] In a third aspect of this disclosure, an apparatus is provided. The apparatus includes at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus to: transmit to at least one device in a first subnetwork of a radio access network instructions indicating the following configuration: a first set of reference signal resources, a second set of reference signal resources, and a set of parameters.

[0007] In a fourth aspect of this disclosure, a method is provided. The method includes: transmitting a first reference signal to at least one device in a first sub-network over a first set of reference signal resources on a first subband, wherein the first subband includes a first set of frequency and time resources for transmission within the sub-network; performing an interference power measurement on a second reference signal from a second sub-network via a radio access network over a second set of reference signal resources on the first subband; determining weighted interference based on the interference power measurement; and determining a second subband for transmission within the first sub-network based on the weighted interference, wherein the second subband includes a second set of frequency and time resources.

[0008] In a fifth aspect of this disclosure, a method is provided. The method includes: performing an interference power measurement on a first reference signal from a second subnetwork of a radio access network on a first set of reference signal resources on a first subband, wherein the first subband includes a first set of frequency and time resources for transmission in the subnetwork; transmitting a pre-coded reference signal to an access point in the first subnetwork on a second set of reference signal resources on the first subband; and determining weighted interference based on the interference power measurement.

[0009] In a sixth aspect of this disclosure, a method is provided. The method includes transmitting a configuration to at least one device in a first subnetwork of a radio access network, the configuration indicating: a first set of reference signal resources, a second set of reference signal resources, and a set of parameters.

[0010] In a seventh aspect of this disclosure, a first apparatus is provided. The first apparatus includes: means for transmitting a first reference signal to at least one device in a first subnetwork over a first set of reference signal resources on a first subband, wherein the first subband includes a first set of frequency and time resources for transmission in the subnetwork; means for performing an interference power measurement on a second reference signal from a second subnetwork on a second set of reference signal resources on the first subband; means for determining weighted interference based on the interference power measurement; and means for determining a second subband for transmission within the first subnetwork based on the weighted interference, wherein the second subband includes a second set of frequency and time resources.

[0011] In an eighth aspect of this disclosure, a second apparatus is provided. The second apparatus includes: means for performing an interference power measurement on a first reference signal from a second subnetwork of a radio access network on a first set of reference signal resources on a first subband, wherein the first subband includes a first set of frequency and time resources for transmission in the subnetwork; means for transmitting a pre-coded reference signal to an access point in the first subnetwork on a second set of reference signal resources on the first subband; and means for determining weighted interference based on the interference power measurement.

[0012] In a ninth aspect of this disclosure, a third apparatus is provided. The third apparatus includes components for transmitting to at least one device in a first subnetwork of a radio access network an instruction for a configuration including: a first set of reference signal resources, a second set of reference signal resources, and a set of parameters.

[0013] In a tenth aspect of this disclosure, a computer-readable medium is provided. The computer-readable medium includes instructions stored thereon for causing a device to perform at least the method according to the fourth aspect.

[0014] In the eleventh aspect of this disclosure, a computer-readable medium is provided. The computer-readable medium includes instructions stored thereon for causing a device to perform at least the method according to the fifth aspect.

[0015] In a twelfth aspect of this disclosure, a computer-readable medium is provided. The computer-readable medium includes instructions stored thereon for causing a device to perform at least the method according to a sixth aspect.

[0016] Other features and advantages of embodiments of the present disclosure will also become apparent from the following description of particular embodiments when read in conjunction with the accompanying drawings, which illustrate the principles of embodiments of the present disclosure by way of example. Attached Figure Description

[0017] The embodiments disclosed herein are presented in an exemplary sense, and their advantages are explained in more detail below with reference to the accompanying drawings.

[0018] Figure 1 An example comparison of subband allocation with interference weighting and subband allocation without interference weighting is shown; Figure 2 An example environment in which example embodiments of this disclosure may be implemented is shown; Figure 3 Signaling diagrams illustrating a power allocation process for a sub-network according to some example embodiments of the present disclosure are shown; Figure 4A and Figure 4B Schematic diagrams of reference signal resources according to some exemplary embodiments of the present disclosure are shown respectively; Figure 5 A flowchart illustrating an example method for subband allocation for a subnetwork according to some example embodiments of the present disclosure is shown; Figure 6 A flowchart illustrating an example method for subband allocation for a subnetwork according to some example embodiments of the present disclosure is shown; Figure 7 A flowchart illustrating an example method for subband allocation for a subnetwork according to some example embodiments of the present disclosure is shown; Figure 8 A simplified block diagram of a device suitable for implementing example embodiments of the present disclosure is shown; and Figure 9 A block diagram of an example computer-readable medium according to some embodiments of the present disclosure is shown.

[0019] In all the accompanying drawings, the same or similar reference numerals may denote the same or similar elements. Detailed Implementation

[0020] The principles of this disclosure will now be described with reference to some exemplary embodiments. It should be understood that these embodiments are described for illustrative purposes only and to assist those skilled in the art in understanding and implementing this disclosure, and do not imply any limitation on the scope of this disclosure. The disclosure described herein can be implemented in various ways other than those described below.

[0021] In the following description and claims, unless otherwise defined, all technical and scientific terms used herein may have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains.

[0022] References to "an embodiment," "embodiment," "example embodiment," etc., in this disclosure indicate that the described embodiment may include a particular feature, structure, or characteristic, but not every embodiment includes that particular feature, structure, or characteristic. Furthermore, these phrases do not necessarily refer to the same embodiment. Additionally, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is to be argued that, whether explicitly described or not, its effect in conjunction with other embodiments on such feature, structure, or characteristic is within the knowledge of those skilled in the art.

[0023] It should be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, these elements should not be limited to these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of the exemplary embodiments, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element. As used herein, the term “and / or” includes any and all combinations of one or more of the listed terms.

[0024] As used herein, “at least one of the following: ” and “at least one of ” and similar expressions, wherein the list of two or more elements is connected by “and” or “or”, means at least one of these elements, or at least any two or more of the elements, or at least all of the elements.

[0025] As used herein, unless explicitly stated otherwise, the execution step “in response to A” does not indicate that the step is performed immediately after “A” occurs, and may include one or more intermediate steps.

[0026] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments. As used herein, the singular forms “a,” “an,” and “the” are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” “having,” “possessing,” “containing,” and / or “covering,” as used herein, specify the presence of the stated features, elements, and / or components, but do not exclude the presence or addition of one or more other features, elements, components, and / or combinations thereof.

[0027] As used in this application, the term "circuit system" may refer to one or more or all of the following: (a) Hardware circuit implementation only (such as implementation using only analog and / or digital circuit systems) and (b) A combination of hardware circuitry and software, such as (if applicable): (i) A combination of (multiple) analog and / or digital hardware circuits and software / firmware, and (ii) Any part of a hardware processor with software (including (multiple) digital signal processors, software, and (multiple) memories, which work together to enable a device (such as a mobile phone or server) to perform various functions) and (c) (Multiple) hardware circuits and / or (multiple) processors, such as (multiple) microprocessors or portions of (multiple) microprocessors, which require software (e.g., firmware) to operate, but may not exist when the software is not required to operate.

[0028] This definition of "circuit system" applies to all uses of the term in this application (including in any claim). As a further example, as used in this application, the term "circuit" also covers only hardware circuitry or a processor (or multiple processors), or a portion of hardware circuitry or a processor and its accompanying software and / or firmware implementation. The term "circuit system" also covers (e.g., and if applicable to a particular claim element) baseband integrated circuits or processor integrated circuits for mobile devices or similar integrated circuits in servers, cellular network devices, or other computing or networking devices.

[0029] As used herein, the term "communication network" refers to a network that conforms to any suitable communication standard, such as New Radio (NR), Long Term Evolution (LTE), LTE-A Advanced (LTE-A), Wideband Code Division Multiple Access (WCDMA), High-Speed ​​Packet Access (HSPA), Narrowband Internet of Things (NB-IoT), etc. Furthermore, communication between terminal devices and network devices in a communication network can be performed according to any suitable generation of communication protocol, including but not limited to first-generation (1G), second-generation (2G), 2.5G, 2.75G, third-generation (3G), fourth-generation (4G), 4.5G, fifth-generation (5G) communication protocols and / or any other currently known or future-developed protocols. Embodiments of this disclosure can be applied to a variety of communication systems. Given the rapid development of communications, there will certainly be future types of communication technologies and systems that embody the future types of this disclosure. The scope of this disclosure should not be construed as limited to the systems described above.

[0030] As used herein, the term "network device" refers to a node in a communications network through which terminal devices access the network and receive services. Depending on the terminology and technology applied, a network device can refer to a base station (BS) or access point (AP), such as a Node B (NodeB or NB), an evolved Node B (eNodeB or eNB), an NR NB (also known as a gNB), a Remote Radio Unit (RRU), a Radio Head (RH), a Remote Radio Head (RRH), a relay, an Integrated Access and Backhaul (IAB) node, a low-power node (such as a femtosecond, picosecond, etc.), a non-terrestrial network (NTN) or non-land network device (such as a satellite network device), a low Earth orbit (LEO) satellite and a geostationary Earth orbit (GEO) satellite, a spacecraft network device, etc. In some example embodiments, the Radio Access Network (RAN) split architecture includes a centralized unit (CU) and a distributed unit (DU) at the IAB donor node. An IAB node includes a mobile terminal (IAB-MT) portion that behaves similarly to a UE to its parent node, and a DU portion that behaves similarly to a base station to the next-hop IAB node.

[0031] The term "terminal device" refers to any terminal device with wireless communication capabilities. By way of example and not limitation, terminal device may also refer to communication equipment, user equipment (UE), subscriber station (SS), portable subscriber station, mobile station (MS), or access terminal (AT). Terminal devices may include, but are not limited to, mobile phones, cellular phones, smartphones, Voice over IP (VoIP) phones, wireless local loop phones, tablets, wearable terminal devices, personal digital assistants (PDAs), portable computers, desktop computers, image acquisition terminal devices (such as digital cameras), gaming terminal devices, music storage and playback devices, in-vehicle wireless terminal devices, wireless endpoints, mobile stations, laptop embedded devices (LEE), laptop mounted devices (LME), USB dongles, smart devices, wireless client devices (CPE), Internet of Things (IoT) devices, watches or other wearable devices, head-mounted displays (HMDs), vehicles, drones, medical devices and applications (e.g., remote surgery), industrial devices and applications (e.g., robots and / or other wireless devices operating in the context of industrial and / or automated processing chains), consumer electronics devices, devices operating on commercial and / or industrial wireless networks, etc. The terminal equipment may also correspond to the mobile termination (MT) portion of an IAB node (e.g., a relay node). In the following description, the terms "terminal equipment," "communication equipment," "terminal," "user equipment," and "UE" are used interchangeably.

[0032] As used herein, the terms “resource,” “transmission resource,” “resource block,” “physical resource block” (PRB), “uplink resource,” or “downlink resource” can refer to any resource used to perform communication, such as communication between a terminal device and a network device, including resources in the time domain, frequency domain, spatial domain, code domain, or any other resources used to implement communication. In the following, unless explicitly stated otherwise, resources in both the frequency and time domains will be used as examples of transmission resources used to describe some exemplary embodiments of this disclosure. Note that the exemplary embodiments of this disclosure are equally applicable to other resources in other domains.

[0033] As used herein, the terms “subnetwork” and “sub-network” are interchangeable and can refer to a network that can be installed in a particular entity that can provide services with extreme performance over a local micro-coverage. The term “inter-subnetwork interference” as used herein can refer to interference between subnetworks. The term “intra-subnetwork measurement” as used herein can refer to a measurement within a subnetwork. The term “transmission power” as used herein can refer to the power per frequency resource allocation unit (e.g., a subchannel within a subband). The term “subband” as used herein can refer to a set of frequency (and time) resources used for transmission in a subnetwork.

[0034] As mentioned above, 6G radio access technology is expected to have extremely high requirements in terms of latency, reliability, and / or throughput, and subnetworks within X (i.e., subnetworks) can be considered promising components of 6G networks to meet these extreme performance requirements. Subnetworks can have the following key attributes and technical characteristics, and the system design of subnetworks within X should consider these technical characteristics: Supports extreme performance requirements in terms of latency, reliability, and / or throughput; Low transmission power means limited coverage (e.g., on the order of a few meters). A star or tree topology with one access point (AP) and one or more UEs within X under the control of the AP; Overall mobility of access points (APs) and associated UEs, but lacking / limited mobility across different subnets; It is part of a wide area network (WAN), but it needs to continue working even when outside the network coverage area.

[0035] In addition, there are likely several typical use cases for X-internal subnetworks. Specifically, use cases for robot / production-internal module subnetworks and vehicle-internal subnetworks have extreme performance requirements in terms of reliability (up to 99.99% or more) and latency (down to 100 μs or even lower), for example, for demanding periodic deterministic communication services, and these use cases may be the most challenging scenarios in sixth-generation (6G) systems.

[0036] Furthermore, a key enabling technology component for delivering extreme performance requirements, particularly in terms of latency and reliability (e.g., for motion-like applications in production module subnetworks or in-vehicle subnetworks, with 100 μs latency and 6 or more nines of reliability), is carrier subband channelization. This involves dividing the carrier bandwidth into multiple subbands, with each subnetwork operating within one (or more) subbands to provide ultimate connectivity. In this context, subnetwork resource selection is essentially a matter of subband selection, ensuring that each subnetwork is allocated one (or more) subbands while keeping inter-subnetwork interference as low as possible, which is crucial for meeting extreme performance requirements.

[0037] In the example solution, a centralized subband allocation scheme with sequential iterative subband allocation based on weighted interference information is proposed. In this solution, the AP collects and sums the weighted interference measured by the device for each interfering subnetwork and the feedback to the BS. The BS constructs an overall interference matrix based on the feedback from all relevant APs, and then performs centralized subband allocation to keep inter-subnetwork interference as low as possible. However, good performance of centralized subband allocation is achieved at the cost of significant inter-subnetwork interference feedback to the BS (which may be undesirable in some subnetwork scenarios).

[0038] In some solutions, each subnetwork periodically (with a fixed period) performs subband selection at random times within a period, and the subnetwork selects the subband with the lowest aggregate interference (i.e., the total interference of the air combination). The subband allocation of the solution is based on a measurement of the aggregated inter-subnetwork interference.

[0039] As mentioned above, a key characteristic of the subnetwork is providing extreme transmission performance (e.g., in terms of reliability, latency, and / or throughput), which appears practically feasible given the short transmission range within a very small area of ​​the subnetwork. However, dynamic interference conditions, primarily caused by the mobility of the subnetwork, pose a significant challenge to meeting these extreme performance requirements. Furthermore, interference-weighted operation (i.e., the ratio of interference to signal power, rather than simply operation based on interference power) has been observed to play a crucial role in improving system performance. Figure 1 An example comparing the performance of subband allocation with and without weighting operations is shown. Therefore, a solution for interference-weighted subband allocation based on distributed methods is needed.

[0040] According to an example embodiment of this disclosure, a transmission and reception scheme is proposed to achieve enhanced distributed subband allocation for subnetworks. In this way, it avoids the large feedback overhead of subband allocation schemes. Furthermore, it can achieve good performance.

[0041] Figure 2 An example communication network 100 in which embodiments of the present disclosure can be implemented is shown. For example... Figure 2As shown, the communication network 100 may include an access point (AP) 110 (hereinafter also referred to as first device 110 or X-subnetwork AP 110). AP 110 may be implemented as a terminal device or a network device. The communication network 100 may also include terminal devices 130-1 and 130-2 (hereinafter also collectively referred to as X-subnetwork terminal device 130, X-subnetwork UE 130, or third device 130). AP 110 can communicate with terminal devices 130-1 and 130-2 within the coverage area of ​​subnetwork 101 (hereinafter also referred to as first subnetwork 101), which may be referred to as the X-subnetwork. The X-subnetwork can be considered part of the communication network 100.

[0042] The communication network 100 may further include a network device 120 (also referred to hereinafter as a second device 120 or a base station (BS) 120) that can communicate with the AP 110 within the coverage area of ​​the network 103. In some scenarios, the coverage area of ​​the sub-network 101 may be within the coverage area of ​​the network 103. In some other scenarios, the coverage area of ​​the sub-network 101 may be outside the coverage area of ​​the network 103.

[0043] Furthermore, the communication network 100 may also include other subnetworks, such as subnetwork 102 (which may also be referred to below as first subnetwork 101). It should be understood that... Figure 2 The number of subnetworks, network devices, and terminal devices shown in X is given for illustrative purposes and does not imply any limitation. Communication network 100 may include any suitable number of network devices and terminal devices.

[0044] Communication in communication environment 100 can be implemented according to any suitable communication protocol(s), including but not limited to cellular communication protocols such as first-generation (1G), second-generation (2G), third-generation (3G), fourth-generation (4G), fifth-generation (5G), and sixth-generation (6G), wireless local network communication protocols such as IEEE 802.11, and / or any other currently known or future-developed protocols. Furthermore, communication can utilize any suitable wireless communication technology, including but not limited to: Code Division Multiple Access (CDMA), Frequency Division Multiple Access (FDMA), Time Division Multiple Access (TDMA), Frequency Division Duplex (FDD), Time Division Duplex (TDD), Multiple-Input Multiple-Output (MIMO), Orthogonal Frequency Division Multiple Access (OFDM), Discrete Fourier Transform Extended OFDM (DFT-s-OFDM), and / or any other currently known or future-developed technologies.

[0045] The exemplary embodiments of this disclosure will now be described in detail with reference to the accompanying drawings.

[0046] Now for reference Figure 3This illustrates signaling diagram 200 for communication according to some example embodiments of the present disclosure. Figure 3 As shown, signaling diagram 200 involves subnetwork AP 110 (hereinafter also referred to as AP 110), BS 120, and subnetwork device 130 (hereinafter also referred to as device 130) within subnetwork X. For discussion purposes, refer to... Figure 2 To describe signaling diagram 200. Although in Figure 3 The diagram shows a single AP 110 and a single device 130, but it will be understood that multiple APs and multiple devices may exist that perform operations similar to those described below with respect to AP 110 and device 130, respectively.

[0047] In some example embodiments, BS 120 transmits configuration to at least one device in subnetwork 101. For example, such as Figure 3 As shown, BS 120 can transmit (2005) configuration to AP 110 in subnet 101. AP 110 can forward (2005') this configuration to device 130 in subnet 101. Alternatively, this configuration can be pre-configured at AP 110 and device 130. This configuration can be common to all subnets, for example, common to subnets 101 and 102.

[0048] This configuration may include a first set of reference signal resources and a second set of reference signal resources. In some example embodiments, the first set of reference signal resources may be used for downlink transmission, i.e., transmission from AP 110 to device 130. Furthermore, the second set of reference signal resources may be used for uplink transmission, i.e., transmission from device 130 to AP 110.

[0049] In some example embodiments, a first set of reference signal resources and a second set of reference signal resources may be provided for each candidate subband. Each transmission cycle may include resources for downlink transmission and resources for uplink transmission. For example, as Figure 4A As shown, reference signal resource 310 for downlink transmission and reference signal resource 320 for uplink transmission can be configured within a transmission period 340 of subband 330. The term "transmission period" as used herein can refer to a basic time-domain unit used for resource configuration or data transmission. It can also be referred to as a subframe or frame.

[0050] This configuration may also include a set of parameters. For example, this set of parameters may include a transmission power factor for determining the transmission power of downlink and / or uplink transmissions within a subnetwork. In some example embodiments, the transmission power factor for downlink transmissions may differ from another transmission power factor for uplink transmissions. As an example, the transmission factor for the first set of reference signal resources may be represented as... The transmission factor used for the second set of reference signal resources can be expressed as: Alternatively or additionally, a set of parameters may include the reference received reference signal power. The reference received reference signal power can be used by the sub-network device for precoding the reference signal (RS) on a second set of reference signal resources, and by the sub-network AP for weighting measured interference, and can be expressed as... .

[0051] AP 110 transmits (2010) a reference signal (also referred to as the "first reference signal") on the first set of reference signal resources in the first subband. That is, device 130 receives the first reference signal on the first set of reference signal resources in the first subband. For example, the first reference signal may be transmitted on resource 310 in subband 330. The first reference signal may be transmitted on the first set of reference signal resources in each transmission cycle. The first subband refers to the first set of time and frequency resources.

[0052] As an example, suppose a subnetwork (e.g., a subnet) In a specific sub-band (e.g., sub-band) The AP 110 can operate on the subband. In each transmission cycle, a reference signal is transmitted on the first set of reference signal resources, as follows:

[0053] in This represents the transmission power factor for transmissions via AP 110. This indicates that on the first set of reference signal resources, the index is... Reference signals transmitted on resource elements. Reference signals can be sub-network specific and can depend at least on the sub-network ID.

[0054] Device 130 transmits (2010') a precoded reference signal on a second set of reference signal resources in a second subband. That is, AP 110 receives the precoded reference signal on the second set of reference signal resources in the second subband. The second subband refers to a second set of time and frequency resources. For example, the precoded reference signal may be transmitted on resource 320 in subband 330. The precoded reference signal may be transmitted on the second set of reference signal resources in each transmission cycle. In some example embodiments, device 130 may determine a precoding factor based on the ratio of the received reference signal power to the received reference signal power from AP 110. In this case, the precoded reference signal may be determined based on the precoding factor.

[0055] As an example, device 130 (which could be the m-th device in sub-network i) can be in sub-band In each transmission cycle, a precoded reference signal is transmitted on the second set of reference signal resources. The precoded reference signal can be represented as:

[0056] in This represents the transmission power factor for transmission to device 130. Indicates the power of the reference received signal. Indicates that on the second set of reference signal resources, in the case of Reference signals transmitted on the indexed resource elements. As described above, the power of the reference signal can be received based on the configured reference. The precoding factor is determined by the ratio of the received reference signal power to the reference signal power from its serving AP (i.e., AP 110) on the first subband (i.e., subband 330). Note that the reference signal transmitted by the device can be specific to the subnetwork and the device, that is, reference signals from different devices (whether they are in the same or different subnetworks) are independent of each other, for example, as different pseudo-random sequences generated from different seeds.

[0057] AP 110 and device 130 perform (2015 and 2015') interference power measurements and weighted sum operations on each candidate subband for distributed subband (re)selection. Interference power measurements can be performed on the associated configured reference signal resources for the total interference power of the reference signal from all interfering subnetworks. For example, interference power measurements and weighted sum operations can be triggered periodically. Alternatively, interference power measurements and weighted sum operations can be triggered by a specific event, such as a subnetwork suffering intolerable interference. Interference power can refer to the total received power of the reference signal from all interfering subnetworks.

[0058] Device 130 performs an interference power measurement (2015) on a first reference signal from a second subnetwork of a radio access network on a first set of reference signal resources on a first subband. For example, device 130 may receive a reference signal from subnetwork 102 on resource 310 on subband 330 and perform an interference power measurement on the reference signal received from subnetwork 102.

[0059] For example, the interference power measurement by device 130 can be performed in candidate subbands. The first set of reference signal resources is executed, and can be represented as:

[0060] in Indicates in subnetwork Index of measuring equipment in the document Indicates residing in the sub-band Index of the interfering subnetwork, Indicates from subnetwork AP to subnet equipment sub-band The average channel gain.

[0061] AP 110 performs an interference power measurement (2015') on a second reference signal from a second subnetwork on a second set of reference signal resources on a first subband. For example, AP 110 may receive a reference signal from subnetwork 102 on resource 320 on subband 330 and perform an interference power measurement on the reference signal received from subnetwork 102.

[0062] As an example, subnetwork An AP (e.g., AP 110) in sub-network 101 can be a candidate subband. Interference measurements are performed on the second set of reference signal resources, and can be expressed as:

[0063] in Indicating interference subnetwork The index of the device transmitting reference signals on the second set of reference signal resources. Indicates residing in the sub-band The index of the interfering subnetwork, and Subnetwork AP and sub-network equipment Subband between The average channel gain. As described above, devices in the subnetwork can transmit pre-coded reference signals. For example, devices... Coefficients can be used The reference signal is pre-coded and then compared with the transmission power factor before the reference signal is transmitted. Multiply.

[0064] Device 130 determines (2020) weighted interference based on interference power measurements measured by device 130. For example, device 130 may determine a weighting factor for interference power measurement based on the received signal power on a first set of reference signal resources. In this case, device 130 may determine weighted interference based on interference power measurements measured by device 130 and the weighting factor.

[0065] As an example, for subnetworks equipment The following weighting factors can be used. Interference power for measurement Perform a weighted operation.

[0066]

[0067] In some example embodiments, weighting factors It can be configured to come from the service subnet. (for measuring equipment) The weighting factor is the reciprocal of the received power of the reference signal. For example, it can be obtained from the reference signal transmission on the first set of reference signal resources on the operating subband or from other forms of reference signal transmission configured between the AP and the measurement equipment on any known candidate subband.

[0068] AP 110 determines the weighted interference (2020′) based on the interference power measurement taken by AP 110. For example, AP 110 may determine the weighting factor for the interference power measurement based on the transmit power factor and the reference received signal power. In this case, AP 110 may determine the weighted interference based on the interference power measurement taken by AP 110 and the weighting factor.

[0069] As an example, for subnetworks APs (e.g., AP 110) in subnetwork 101 can utilize the following weighting factors. Interference power for measurement Perform a weighted operation.

[0070]

[0071] As mentioned above, the weighting factor can be determined based on the transmit power factor and the reference received signal power. .

[0072] Device 130 can transmit (2025') feedback indicating the weighted interference measured by device 130 to AP 110. That is, AP 110 can receive feedback indicating weighted interference(s) from one or more devices in subnetwork 101. AP 110 can determine the sum of weighted interference based on the weighted interference measured by AP 110 and the weighted interference(s) from one or more devices in subnetwork 101.

[0073] For example, by subnetwork equipment The obtained weighted interference can be fed back to the subnetwork. The AP adds the weighted interference from all relevant devices to the weighted interference from the AP itself, as shown below:

[0074] in Indicates originating from a sub-network The AP received interference power and the interference caused by the device In sub-band Sensed useful signal power (from its serving subnetwork) The ratio of AP), Indicates subnetwork equipment in Targeting sub-networks The interference perceived by the AP is the ratio of interference to signal power. This applies if the sub-network AP is selected and resides in the subband. The above is the weighted sum of interference. It can be equal to a subnetwork The device-sensed weighted interference and subnetwork The sum of weighted interferences caused by other co-band subnetworks. Additionally, the sum of weighted interferences. It can be made by sub-networks The APs are based solely on measurements taken by their devices and themselves through certain specific operations, meaning they are only local measurements, thus facilitating the distributed subband allocation process.

[0075] AP 110 determines (2030) a second subband for transmission within subnet 101. In this way, the system can achieve good performance and avoid significant feedback overhead from the subnet AP to the BS for inter-subnet interference.

[0076] For example, AP 110 can be based on all candidate subbands Weighted interference obtained above The sum of these factors determines the distributed subband allocation, where... It is a set of candidate subband indices. Subband selection can be applied as follows:

[0077] in This indicates the index of the subband selected by AP 110. AP 110 can notify all devices of the newly selected subband, and subsequent intranet transmissions will switch to the selected subband.

[0078] In some example embodiments, after selecting the second subband, AP 110 and device 130 can switch to the second subband. In this case, AP 110 can transmit reference signals to at least one device in the first subnetwork on a first set of reference signal resources on the second subband. For example, as Figure 4BAs shown, AP 110 can transmit a reference signal on resource 311 on subband 331. Device 130 can transmit a reference signal on a second set of reference resources on a second subband. For example, device 130 can transmit a reference signal on resource 321 on subband 331.

[0079] AP 110 can perform interference power measurements on reference signals from the second subnetwork on the second set of reference signal resources in the second subband. Device 130 can perform interference power measurements on reference signals from APs in the second subnetwork on the first set of reference signal resources in the second subband. AP 110 can determine another weighted interference based on the interference power measurements taken by AP 110. Device 130 can also determine weighted interference based on the interference power measurements taken by device 130 and notify AP 110 of the weighted interference. AP 110 can determine a third subband for transmission within the first subnetwork based on other weighted interference.

[0080] According to an example embodiment of this disclosure, a precoded reference signal transmission and a weighted sum of the received power of the aggregated reference signal, jointly performed by sub-network APs and devices, are proposed to achieve distributed subband allocation for inter-sub-network interference management.

[0081] Figure 5 A flowchart of an example method 500 implemented at a first device according to some example embodiments of the present disclosure is shown. For the purposes of discussion, [the following will be discussed]. Figure 2 The angle description method of AP device 110 in 500.

[0082] At box 510, AP 110 transmits a first reference signal to at least one device in a first sub-network over a first set of reference signal resources on a first subband. The first subband includes a first set of frequency and time resources for sub-network transmission.

[0083] At box 520, AP 110 performs an interference power measurement on the second reference signal from the second subnetwork of the radio access network on the second set of reference signal resources on the first subband.

[0084] At box 530, AP 110 determines the weighted interference based on interference power measurements.

[0085] At box 540, AP 110 determines a second subband for transmission within the first subnetwork based on weighted interference. The second subband includes a second set of frequency and time resources.

[0086] In some example embodiments, method 500 further includes receiving from a network device in a radio access network an instruction for the following configuration: a first set of reference signal resources, a second set of reference signal resources, and a set of parameters.

[0087] In some example embodiments, a set of parameters includes at least one of the following: transmission power factor, or reference received reference signal power.

[0088] In some example embodiments, method 500 further includes: determining a weighting factor for interference power measurement based on a transmission power factor and a reference received signal power; and determining weighted interference based on the interference power measurement and the weighting factor.

[0089] In some example embodiments, method 500 further includes: receiving feedback from at least one device in a first sub-network, the feedback indicating other weighted interference measured by the at least one device; and determining a sum of weighted interference based on the weighted interference and the other weighted interference measured by the at least one device.

[0090] In some example embodiments, method 500 further includes: switching to a second subband; transmitting another first reference signal to at least one device in a first subnetwork on a first set of reference signal resources on the second subband; performing another interference power measurement on another second reference signal from the second subnetwork on a second set of reference signal resources on the second subband; determining another weighted interference based on the other interference power measurement; and determining a third subband for transmission within the first subnetwork based on the other weighted interference.

[0091] Figure 6 A flowchart of an example method 600 implemented at a second device according to some example embodiments of the present disclosure is shown. For the purposes of discussion, [the following will be discussed]. Figure 2 The angle description method of device 130 in 600.

[0092] At box 610, device 130 performs an interference power measurement on a first reference signal from a second subnetwork on a first set of reference signal resources on a first subband. The first subband includes a first set of frequency and time resources for subnetwork transmission.

[0093] At frame 620, device 130 transmits precoded reference signals to an access point in a first sub-network on a second set of reference signal resources on a first subband.

[0094] At box 630, device 130 determines weighted interference based on interference power measurements.

[0095] In some example embodiments, method 600 further includes receiving from a network device in a radio access network an instruction for the following configuration: a first set of reference signal resources, a second set of reference signal resources, and a set of parameters.

[0096] In some example embodiments, a set of parameters includes at least one of the following: transmission power factor, or reference received reference signal power.

[0097] In some example embodiments, method 600 further includes: determining a precoding factor based on the ratio of the power of a reference received reference signal to the power of a received reference signal from the access point; and determining a precoded signal based on the precoding factor.

[0098] In some example embodiments, method 600 further includes: determining a weighting factor for interference power measurement based on the received signal power on a first set of reference signal resources; and determining weighted interference based on the interference power measurement and the weighting factor.

[0099] In some example embodiments, method 600 further includes transmitting feedback indicating weighted interference to the access point.

[0100] Figure 7 A flowchart of an example method 700 implemented at a third device according to some example embodiments of the present disclosure is shown. For the purposes of discussion, [the following will be discussed]. Figure 2 Method 700 is described from the perspective of BS 120.

[0101] At box 710, BS 120 transmits instructions to at least one device in the first subnetwork of the radio access network to indicate the following configuration: a first set of reference signal resources, a second set of reference signal resources, and a set of parameters.

[0102] In some example embodiments, a set of parameters includes at least one of the following: transmission power factor, or reference received reference signal power.

[0103] In some example embodiments, a first device capable of performing any method 500 (e.g., Figure 2 AP 110 in the diagram may include components for performing the corresponding operations of method 500. These components may be implemented in any suitable form. For example, the components may be implemented in a circuit system or a software module. The first device may be implemented as or included in... Figure 2 In AP110.

[0104] In some example embodiments, the first apparatus includes: means for transmitting a first reference signal to at least one device in a first sub-network over a first set of reference signal resources on a first subband, wherein the first subband includes a first set of frequency and time resources for transmission within the sub-network; means for performing an interference power measurement on a second reference signal from a second sub-network of a radio access network over a second set of reference signal resources on the first subband; means for determining weighted interference based on the interference power measurement; and means for determining a second subband for transmission within the first sub-network based on the weighted interference, wherein the second subband includes a second set of frequency and time resources.

[0105] In some example embodiments, the first apparatus further includes: a component for receiving from a network device in a radio access network an instruction for the following configuration: a first set of reference signal resources, a second set of reference signal resources, and a set of parameters.

[0106] In some example embodiments, a set of parameters includes at least one of the following: transmission power factor, or reference received reference signal power.

[0107] In some example embodiments, the first apparatus further includes: components for determining a weighting factor for interference power measurement based on a transmission power factor and a reference received reference signal power; and components for determining weighted interference based on the interference power measurement and the weighting factor.

[0108] In some example embodiments, the first apparatus further includes: components for receiving feedback from at least one device in the first sub-network, the feedback indicating other weighted interference measured by the at least one device; and components for determining a sum of weighted interference based on the weighted interference and other weighted interference measured by the at least one device.

[0109] In some example embodiments, the first apparatus further includes: means for switching to a second subband; means for transmitting another first reference signal to at least one device in a first subnetwork on a first set of reference signal resources on the second subband; means for performing another interference power measurement on another second reference signal from the second subnetwork on a second set of reference signal resources on the second subband; means for determining another weighted interference based on the other interference power measurement; and means for determining a third subband for transmission within the first subnetwork based on the other weighted interference.

[0110] In some example embodiments, the device includes an access point in a first sub-network.

[0111] In some example embodiments, the first device further includes components for performing additional operations in some example embodiments of method 500 or AP 110. In some example embodiments, the components include: at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause execution of the first device.

[0112] In some example embodiments, any method 600 can be executed (e.g., Figure 2 The second means of the device 130 in the process may include a component for performing the corresponding operation of method 600. This component may be implemented in any suitable form. For example, the component may be implemented in a circuit system or a software module. The second means may be implemented as or included in... Figure 2 Among the devices in device 130.

[0113] In some example embodiments, the second apparatus includes: means for performing an interference power measurement on a first reference signal from a second subnetwork of a radio access network on a first set of reference signal resources on a first subband, wherein the first subband includes a first set of frequency and time resources for transmission in the subnetwork; means for transmitting a precoded reference signal to an access point in the first subnetwork on a second set of reference signal resources on the first subband; and means for determining weighted interference based on the interference power measurement.

[0114] In some example embodiments, the second apparatus further includes: a component for receiving from a network device in a radio access network an instruction for the following configuration: a first set of reference signal resources, a second set of reference signal resources, and a set of parameters.

[0115] In some example embodiments, a set of parameters includes at least one of the following: transmission power factor, or reference received reference signal power.

[0116] In some example embodiments, the second apparatus further includes: a component for determining a precoding factor based on the ratio of the power of a reference received reference signal to the power of a received reference signal from the access point; and a component for determining a precoded signal based on the precoding factor.

[0117] In some example embodiments, the second apparatus further includes: components for determining a weighting factor for interference power measurement based on the received signal power on a first set of reference signal resources; and components for determining weighted interference based on the interference power measurement and the weighting factor.

[0118] In some example embodiments, the second device further includes a component for transmitting feedback indicating weighted interference to the access point.

[0119] In some example embodiments, the device includes devices in a first sub-network.

[0120] In some example embodiments, the second device further includes components for performing additional operations in some example embodiments of method 600 or device 130. In some example embodiments, the components include: at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause execution of the second device.

[0121] In some example embodiments, any method 700 can be executed (e.g., Figure 2 The third means (BS 120) may include components for performing the corresponding operation of method 700. This means may be implemented in any suitable form. For example, it may be implemented in a circuit or software module. The third means may be implemented as or included in... Figure 2 In BS 120.

[0122] In some example embodiments, the third device includes components for transmitting to at least one device in a first subnetwork of the radio access network an indication of a configuration including a first set of reference signal resources, a second set of reference signal resources, and a set of parameters.

[0123] In some example embodiments, a set of parameters includes at least one of the following: transmission power factor, or reference received reference signal power.

[0124] In some example embodiments, the device includes a network device.

[0125] In some example embodiments, the third means further includes components for performing other operations in some example embodiments of method 700 or BS 120. In some example embodiments, the components include: at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause execution of the third means.

[0126] Figure 8 This is a simplified block diagram of a device 800 suitable for implementing exemplary embodiments of the present disclosure. The device 800 can be provided to implement a communication device, such as... Figure 2 The AP device 110, BS 120, or device 130 shown are illustrated. As shown, device 800 includes one or more processors 810, one or more memories 820 coupled to processor 810, and one or more communication modules 840 coupled to processor 810.

[0127] Communication module 840 is used for bidirectional communication. Communication module 840 has one or more communication interfaces to facilitate communication with one or more other modules or devices. The communication interface can represent any interface required for communication with other network elements. In some example embodiments, communication module 840 may include at least one antenna.

[0128] As a non-limiting example, processor 810 can be any type suitable for a local technology network and can include one or more of the following: general-purpose computer, special-purpose computer, microprocessor, digital signal processor (DSP), and processor based on a multi-core processor architecture. Device 800 can have multiple processors, such as application-specific integrated circuit chips that are time-dependent on a clock synchronized with the main processor.

[0129] Memory 820 may include one or more non-volatile memories and one or more volatile memories. Examples of non-volatile memories include, but are not limited to, read-only memory (ROM) 824, electrically programmable read-only memory (EPROM), flash memory, hard disk, miniature optical disc (CD), digital video disc (DVD), optical disc, laser disc, and other magnetic and / or optical storage. Examples of volatile memories include, but are not limited to, random access memory (RAM) 822 and other volatile memories that will not persist during power-off periods.

[0130] Computer program 830 includes computer-executable instructions that are executed by an associated processor 810. The instructions of program 830 may include instructions for performing operations / actions of some example embodiments of this disclosure. Program 830 may be stored in memory (e.g., ROM 824). Processor 810 can perform any suitable actions and processes by loading program 830 into RAM 822.

[0131] Example embodiments of this disclosure can be implemented using program 830, enabling device 800 to perform as described in the reference. Figures 2 to 7 Any process discussed in this disclosure. Exemplary embodiments of this disclosure may also be implemented by hardware or a combination of software and hardware.

[0132] In some example embodiments, program 830 may be tangibly included in a computer-readable medium, which may be included in device 800 (such as in memory 820) or other storage device accessible by device 800. Device 800 may load program 830 from the computer-readable medium into RAM 822 for execution. In some example embodiments, the computer-readable medium may include any type of non-transitory storage medium, such as ROM, EPROM, flash memory, hard disk, CD, DVD, etc. As used herein, the term "non-transitory" is a limitation on the medium itself (i.e., tangible, not tactile) rather than on the persistence of data storage (e.g., RAM and ROM).

[0133] Figure 9 An example of a computer-readable medium 900 is shown, which may be in the form of a CD, DVD, or other optical storage disc. A program 830 is stored on the computer-readable medium 900.

[0134] In general, the various embodiments of this disclosure can be implemented in hardware or dedicated circuitry, software, logic, or any combination thereof. Some aspects can be implemented in hardware, while others can be implemented in firmware or software executable by a controller, microprocessor, or other computing device. Although various aspects of the embodiments of this disclosure are illustrated and described as block diagrams, flowcharts, or using some other graphical representation, it should be understood that, as non-limiting examples, the blocks, apparatuses, systems, techniques, or methods described herein can be implemented in hardware, software, firmware, dedicated circuitry or logic, general-purpose hardware or controllers or other computing devices, or some combination thereof.

[0135] Some exemplary embodiments of this disclosure also provide at least one computer program product tangibly stored on a computer-readable medium, such as a non-transitory computer-readable medium. The computer program product includes computer-executable instructions that execute in a device on a target physical or virtual processor, such as those included in a program module, to perform any of the methods described above. Typically, a program module includes routines, programs, libraries, objects, classes, components, data structures, etc., that perform a particular task or implement a particular abstract data type. In various embodiments, the functionality of a program module can be combined or split among program modules as needed. The machine-executable instructions for a program module can execute within a local or distributed device. In a distributed device, the program module can reside in both local and remote storage media.

[0136] Program code used to perform the methods of this disclosure may be written in any combination of one or more programming languages. The program code may be provided to a processor or controller of a general-purpose computer, special-purpose computer, or other programmable data processing apparatus, such that, when executed by the processor or controller, the program code enables the functions / operations specified in the flowcharts and / or block diagrams to be implemented. The program code may be executed entirely on the machine, partially on the machine, as a stand-alone software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0137] In the context of this disclosure, computer program code or related data may be carried by any suitable carrier to enable a device, apparatus, or processor to perform the various processes and operations described above. Examples of carriers include signals, computer-readable media, etc.

[0138] Computer-readable media can be computer-readable signal media or computer-readable storage media. Computer-readable media can include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatuses, or devices, or any suitable combination thereof. More specific examples of computer-readable storage media include electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable optical disc read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0139] Furthermore, although the operations are described in a specific order, this should not be construed as requiring that these operations be performed in the specific order shown or in sequential order, or that all the operations shown be performed to achieve the desired result. In some cases, multitasking and parallel processing may be advantageous. Similarly, although several specific implementation details are included in the foregoing discussion, they should not be considered as limiting the scope of this disclosure, but rather as a description of features that may be specific to certain embodiments. Unless explicitly stated otherwise, certain features described in the context of a single embodiment may also be implemented in combination in that single embodiment. Conversely, unless explicitly stated otherwise, the various features described in the context of a single embodiment may also be implemented individually or in any suitable sub-combination in multiple embodiments.

[0140] Although this disclosure has been described in language specific to structural features and / or methodological actions, it should be understood that the disclosure as defined in the appended claims is not necessarily limited to the specific features or actions described above. Rather, the specific features and actions described above are disclosed as exemplary forms of implementing the claims.

Claims

1. An apparatus in a first subnetwork of a radio access network, comprising: At least one processor; as well as At least one memory, the at least one memory storing instructions, the instructions, when executed by the at least one processor, causing the device to: Transmit a first reference signal to at least one device in the first sub-network on a first set of reference signal resources on a first sub-band, wherein the first sub-band includes a first set of frequency and time resources for sub-network transmission; Perform an interference power measurement on the second reference signal from the second subnetwork of the radio access network on the second set of reference signal resources on the first subband; The weighted interference is determined based on the interference power measurement; as well as A second subband for transmission within the first subnetwork is determined based on the weighted interference, wherein the second subband includes a second set of frequency and time resources.

2. The apparatus of claim 1, wherein the apparatus is configured to: The network device in the radio access network receives instructions for the following configuration: a first set of reference signal resources, a second set of reference signal resources, and a set of parameters.

3. The apparatus of claim 2, wherein the set of parameters includes at least one of the following: Transmission power factor, or Reference received reference signal power.

4. The apparatus according to any one of claims 1-3, wherein the apparatus is configured to: A weighting factor for the interference power measurement is determined based on the transmitted power factor and the reference received signal power; and The weighted interference is determined based on the interference power measurement and the weighting factor.

5. The apparatus according to any one of claims 1-4, wherein the apparatus is configured to: Receive feedback from at least one device in the first sub-network, the feedback indicating other weighted interference measured by the at least one device; and The sum of weighted interference is determined based on the weighted interference and the other weighted interference measured by the at least one device.

6. The apparatus according to any one of claims 1-5, wherein the apparatus is configured to: Switch to the second sub-band; Transmit another first reference signal to at least one device in the first sub-network on the first set of reference signal resources on the second sub-band; Perform another interference power measurement on another second reference signal from the second sub-network on the second set of reference signal resources in the second sub-band; Another weighted interference is determined based on the other interference power measurement; as well as A third subband for transmission within the first subnetwork is determined based on the other weighted interference, wherein the third subband includes a third set of frequency and time resources.

7. The apparatus according to any one of claims 1-6, wherein the apparatus includes an access point in the first sub-network.

8. An apparatus in a first subnetwork of a radio access network, comprising: At least one processor; as well as At least one memory, the at least one memory storing instructions, the instructions, when executed by the at least one processor, causing the device to: An interference power measurement is performed on a first reference signal from a second subnetwork of the radio access network on a first set of reference signal resources in a first subband, wherein the first subband includes a first set of frequency and time resources; Transmit precoded reference signals to access points in the first sub-network on the second set of reference signal resources on the first sub-band; as well as The weighted interference is determined based on the interference power measurement.

9. The apparatus of claim 8, wherein the apparatus is configured to: The network device in the radio access network receives instructions for the following configuration: a first set of reference signal resources, a second set of reference signal resources, and a set of parameters.

10. The apparatus of claim 9, wherein the set of parameters includes at least one of the following: Transmission power factor, or Reference received reference signal power.

11. The apparatus according to any one of claims 8-10, wherein the apparatus is configured to: The precoding factor is determined based on the ratio of the power of the reference received reference signal to the power of the received reference signal from the access point; and The precoded signal is determined based on the precoding factor.

12. The apparatus according to any one of claims 8-11, wherein the apparatus is configured to: The weighting factor for the interference power measurement is determined based on the received signal power on the first set of reference signal resources; and The weighted interference is determined based on the interference power measurement and the weighting factor.

13. The apparatus of claim 12, wherein the apparatus is configured to: A feedback indicating the weighted interference is transmitted to the access point.

14. The apparatus according to any one of claims 8-13, wherein the apparatus includes a device in the first sub-network.

15. An apparatus in a radio access network, comprising: At least one processor; as well as At least one memory, the at least one memory storing instructions, the instructions, when executed by the at least one processor, causing the device to: The following configuration is transmitted to at least one device in the first subnetwork of the radio access network: a first set of reference signal resources, a second set of reference signal resources, and a set of parameters.

16. The apparatus of claim 15, wherein the set of parameters includes at least one of the following: Transmission power factor, or Reference received reference signal power.

17. The apparatus of claim 15 or 16, wherein the apparatus includes a network device.

18. A method comprising: At a device in a first subnetwork of a radio access network, a first reference signal is transmitted to at least one device in the first subnetwork over a first set of reference signal resources on a first subband, wherein the first subband includes a first set of frequency and time resources for subnetwork transmission. Perform an interference power measurement on the second reference signal from the second subnetwork of the radio access network on the second set of reference signal resources on the first subband; The weighted interference is determined based on the interference power measurement; as well as A second subband for transmission within the first subnetwork is determined based on the weighted interference, wherein the second subband includes a second set of frequency and time resources.

19. The method of claim 18, further comprising: The network device in the radio access network receives instructions for the following configuration: a first set of reference signal resources, a second set of reference signal resources, and a set of parameters.

20. The method of claim 19, wherein the set of parameters comprises at least one of the following: Transmission power factor, or Reference received reference signal power.

21. The method according to any one of claims 18-20, further comprising: The weighting factor for the interference power measurement is determined based on the transmission power factor and the reference received reference signal power. as well as The weighted interference is determined based on the interference power measurement and the weighting factor.

22. The method according to any one of claims 18-21, further comprising: Feedback is received from at least one device in the first sub-network, the feedback indicating other weighted interference measured by at least one device; as well as The sum of weighted interference is determined based on the weighted interference and the other weighted interference measured by the at least one device.

23. The method according to any one of claims 18-22, further comprising: Switch to the second sub-band; Transmit another first reference signal to at least one device in the first sub-network on the first set of reference signal resources on the second sub-band; Perform another interference power measurement on another second reference signal from the second sub-network on the second set of reference signal resources in the second sub-band; Another weighted interference is determined based on the other interference power measurement; as well as The third subband for transmission within the first subnetwork is determined based on the other weighted interference.

24. The method according to any one of claims 18-23, wherein the apparatus includes an access point in the first sub-network.

25. A method comprising: At a device in a first sub-network of a radio access network, an interference power measurement is performed on a first reference signal from a second sub-network of the radio access network on a first set of reference signal resources on a first subband, wherein the first subband includes a first set of frequency and time resources for sub-network transmission. Transmit precoded reference signals to access points in the first sub-network on the second set of reference signal resources on the first sub-band; as well as The weighted interference is determined based on the interference power measurement.

26. The method of claim 25, further comprising: The network device in the radio access network receives instructions for the following configuration: a first set of reference signal resources, a second set of reference signal resources, and a set of parameters.

27. The method of claim 26, wherein the set of parameters comprises at least one of the following: Transmission power factor, or Reference received reference signal power.

28. The method according to any one of claims 25-27, further comprising: The precoding factor is determined based on the ratio of the power of the reference received reference signal to the power of the received reference signal from the access point. as well as The precoded signal is determined based on the precoding factor.

29. The method according to any one of claims 25-28, further comprising: The weighting factor for the interference power measurement is determined based on the received signal power on the first set of reference signal resources; as well as The weighted interference is determined based on the interference power measurement and the weighting factor.

30. The method of claim 29, further comprising: A feedback indicating the weighted interference is transmitted to the access point.

31. The method according to any one of claims 25-30, wherein the apparatus includes a device in the first sub-network.

32. A method comprising: At a device in a radio access network, and to at least one device in a first sub-network of the radio access network, a configuration is transmitted, the configuration indicating: a first set of reference signal resources, a second set of reference signal resources, and a set of parameters.

33. The method of claim 32, wherein the set of parameters includes at least one of the following: Transmission power factor, or Reference received reference signal power.

34. The method of claim 32 or 33, wherein the apparatus comprises a network device.

35. An apparatus in a first subnetwork of a radio access network, comprising: Components for transmitting a first reference signal to at least one device in the first sub-network on a first set of reference signal resources on a first sub-band, wherein the first sub-band includes a first set of frequency and time resources for sub-network transmission; Components for performing interference power measurement on a second reference signal from a second subnetwork of the radio access network on a second set of reference signal resources on the first subband; Components for determining weighted interference based on the interference power measurement; as well as Components for determining a second subband for transmission within the first subnetwork based on the weighted interference, wherein the second subband includes a second set of frequency and time resources.

36. An apparatus in a first subnetwork of a radio access network, comprising: Components for performing interference power measurement on a first reference signal from a second subnetwork of the radio access network on a first set of reference signal resources on a first subband, wherein the first subband includes a first set of frequency and time resources for subnetwork transmission; Components for transmitting pre-coded reference signals to access points in the first sub-network on a second set of reference signal resources on the first sub-band; as well as A component used to determine weighted interference based on the interference power measurement.

37. An apparatus in a radio access network, comprising: Components for transmitting to at least one device in the first subnetwork of the radio access network an indication of the following configuration: a first set of reference signal resources, a second set of reference signal resources, and a set of parameters.

38. A computer-readable medium comprising instructions stored thereon for causing a device to perform at least the method of any one of claims 18-24, or the method of any one of claims 25-31, or the method of any one of claims 32-34.

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