Subband selection process based on interference weighting

Abstract

The embodiment of the invention relates to equipment, a method and a device for a sub-band selection process based on interference weighting, and a computer readable storage medium. The method includes receiving, from a second device in the radio access network, a configuration for determining weighted inter-subnet interference between a first subnet of the radio access network and at least one second subnet of the radio access network, where the configuration indicates at least one of: a first weighting for weighted inter-subnet interference, a second weighting for weighted inter-subnet interference; determining weighted inter-subnet interference based at least on the configuration; and transmitting the weighted inter-subnet interference to the second device for selecting at least one subband for the first subnet. In this manner, weighting operations can be proposed for inter-subnet interference and associated low-complexity subband selection processes to minimize total weighted interference on all subnets, which can flexibly optimize and balance various system performance.

Description

Technical Field

[0001] Embodiments of the present disclosure relate generally to the field of telecommunications, and in particular to devices, methods, apparatuses, and computer-readable storage media for a subband selection process based on interference weighting. Background Art

[0002] Intra-X subnets (hereinafter referred to as subnets) have been proposed as a promising component to meet the extreme performance requirements in terms of latency, reliability, and / or throughput envisioned for certain scenarios in the sixth generation (6G) wireless access technology. For example, subnets can be installed in specific entities, such as inside a car, inside a body, indoors, etc., to provide life-critical data services with extreme performance in terms of localized fine network coverage. Summary of the invention

[0003] In general, example embodiments of the present disclosure provide a solution for an interference-weighted based subband selection process.

[0004] In a first aspect, a first device in a first subnet of a wireless access network is provided. The first device includes: at least one processor; and at least one memory storing instructions, which, when executed by the at least one processor, causes the first device to at least: receive a configuration for determining weighted inter-subnet interference between the first subnet and at least one second subnet of the wireless access network from a second device in the wireless access network, wherein the configuration indicates at least one of the following: a first weighting for the weighted inter-subnet interference, a second weighting for the weighted inter-subnet interference; determine the weighted inter-subnet interference based on at least the configuration; and send the weighted inter-subnet interference to the second device for selecting at least one subband for the first subnet.

[0005] In a second aspect, a second device in a wireless access network is provided. The second device includes: at least one processor; and at least one memory storing instructions. When the instructions are executed by the at least one processor, the second device at least: sends a configuration for determining weighted inter-subnet interference between at least one subnet to at least one first device in at least one subnet of the wireless access network, wherein the configuration indicates at least one of the following: a first weighting for the weighted inter-subnet interference, a second weighting for the weighted inter-subnet interference; and receives the weighted inter-subnet interference from the at least one first device for selecting at least one subband for the first subnet.

[0006] According to a third aspect, a third device in a first subnet of a wireless access network is provided. The third device includes: at least one processor; and at least one memory storing instructions. When the instructions are executed by the at least one processor, the third device at least: receives a configuration for determining a first interference vector from a first device in the first subnet, wherein the first interference vector is associated with weighted inter-subnet interference between the first subnet and at least one second subnet of the wireless access network, and the configuration indicates at least a first weighting for the weighted inter-subnet interference; and sends the first interference vector determined based on the configuration to the first device.

[0007] In a fourth aspect, a method is provided. The method includes: receiving, at a first device in a first subnet of a wireless access network, a configuration for determining weighted inter-subnet interference between the first subnet and at least one second subnet of the wireless access network from a second device in the wireless access network, wherein the configuration indicates at least one of: a first weighting for the weighted inter-subnet interference, a second weighting for the weighted inter-subnet interference; determining the weighted inter-subnet interference based on at least the configuration; and sending the weighted inter-subnet interference to the second device for selecting at least one subband for the first subnet.

[0008] In a fifth aspect, a method is provided. The method includes: sending, from a second device in a wireless access network, to at least one first device in at least one subnet of the wireless access network, a configuration for determining weighted inter-subnet interference between at least one subnet, wherein the configuration indicates at least one of the following: a first weighting for the weighted inter-subnet interference, a second weighting for the weighted inter-subnet interference, and receiving the weighted inter-subnet interference from the at least one first device for selecting at least one subband for the first subnet.

[0009] In a sixth aspect, a method is provided. The method includes: receiving, at a third device in a first subnet of a wireless access network, a configuration for determining a first interference vector from a first device in the first subnet, wherein the first interference vector is associated with weighted inter-subnet interference between the first subnet and at least one second subnet of the wireless access network, and the configuration indicates at least a first weighting for the weighted inter-subnet interference; and sending the first interference vector determined based on the configuration to the first device.

[0010] In a seventh aspect, an apparatus is provided, comprising: a component for receiving, from a second device in a wireless access network, a configuration for determining weighted inter-subnet interference between a first subnet of the wireless access network and at least one second subnet of the wireless access network, wherein the configuration indicates at least one of: a first weighting for the weighted inter-subnet interference, a second weighting for the weighted inter-subnet interference; a component for determining the weighted inter-subnet interference based at least on the configuration; and a component for sending the weighted inter-subnet interference to the second device for selecting at least one subband for the first subnet.

[0011] In an eighth aspect, an apparatus is provided, comprising: a component for sending a configuration for determining weighted inter-subnet interference between at least one subnet to at least one first device in at least one subnet of a wireless access network, wherein the configuration indicates at least one of the following: a first weighting for the weighted inter-subnet interference, a second weighting for the weighted inter-subnet interference; and a component for receiving the weighted inter-subnet interference from the at least one first device, for selecting at least one subband for the first subnet.

[0012] In a ninth aspect, an apparatus is provided, comprising: a component for receiving a configuration for determining a first interference vector from a first device in a first subnet of a wireless access network, wherein the first interference vector is associated with weighted inter-subnet interference between the first subnet and at least one second subnet of the wireless access network, and the configuration indicates at least a first weighting for the weighted inter-subnet interference; and a component for sending the first interference vector determined based on the configuration to the first device.

[0013] In the tenth aspect, a computer-readable medium is provided, on which a computer program is stored. When the computer program is executed by at least one processor of a device, the method described in the fifth aspect, the sixth aspect or the seventh aspect is implemented.

[0014] Other features and advantages of the embodiments of the present disclosure will also be apparent when the following description of the specific embodiments is read in conjunction with the accompanying drawings, which illustrate the principles of the embodiments of the present disclosure by way of example. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The embodiments of the present disclosure are presented in the form of examples, and advantages thereof will be explained in more detail below in conjunction with the accompanying drawings.

[0016] Figure 1 An example environment is shown in which example embodiments of the present disclosure may be implemented;

[0017] Figure 2 A signaling diagram illustrating an interference weighted based subband selection process according to some example embodiments of the present disclosure;

[0018] Figure 3 A flowchart illustrating an example method of an interference weighted based subband selection process according to some example embodiments of the present disclosure;

[0019] Figure 4 A flowchart illustrating an example method of an interference weighted based subband selection process according to some example embodiments of the present disclosure;

[0020] Figure 5 A flowchart illustrating an example method of an interference weighted based subband selection process according to some example embodiments of the present disclosure;

[0021] Figure 6 shows a simplified block diagram of a device suitable for implementing an example embodiment of the present disclosure; and

[0022] Figure 7 A block diagram of an example computer-readable medium is shown in accordance with some embodiments of the present disclosure.

[0023] The same or similar reference numbers may refer to the same or similar elements throughout the drawings. DETAILED DESCRIPTION

[0024] The principles of the present disclosure will now be described with reference to some example embodiments. It should be understood that these embodiments are described only for illustrative purposes and help those skilled in the art to understand and implement the present disclosure without implying any limitation on the scope of the present disclosure. The embodiments described herein can be implemented in various ways except for the way described below.

[0025] In the following description and claims, unless defined otherwise, 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 belongs.

[0026] References in this disclosure to "one embodiment," "an embodiment," "an example embodiment," etc. indicate that the described embodiment may include a particular feature, structure, or characteristic, but not every embodiment necessarily includes the particular feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in conjunction with an embodiment, it is considered that it is within the knowledge of those skilled in the art to affect these features, structures, or characteristics in conjunction with other embodiments, whether or not explicitly described.

[0027] 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 by these terms. These terms are only used to distinguish one element from another element. For example, without departing from the scope of the exemplary embodiment, the first element may be referred to as the second element, and similarly, the second element may be referred to as the first element. As used herein, the term "and / or" includes any and all combinations of one or more of the listed terms.

[0028] As used herein, “at least one of: ” and “at least one of ” and similar expressions mean at least any one of the elements, or at least any two or more of the elements, or at least all of the elements, where the list of two or more elements is connected by “and” or “or”.

[0029] As used herein, unless explicitly stated otherwise, performing a 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.

[0030] The terms used herein are only used for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments. As used herein, the singular forms "a", "an", and "the" are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the terms "include", "comprises", "has", "includes", and / or "comprising" when used herein specify the presence of the features, elements, and / or components, etc., but do not exclude the presence or addition of one or more other features, elements, components, and / or combinations thereof.

[0031] As used in this application, the term "circuitry" may refer to one or more or all of the following:

[0032] (a) implemented in hardware circuits only (such as implemented in analog and / or digital circuits only) and

[0033] (b) a combination of hardware circuitry and software, such as (where applicable):

[0034] (i) a combination of analog and / or digital hardware circuits and software / firmware, and

[0035] (ii) any part of a hardware processor(s) with software (including digital signal processor(s), software and memory(s) that work together to enable a device (such as a mobile phone or server) to perform various functions), and

[0036] (c) Hardware circuits and / or processor(s), such as microprocessor(s) or portions of microprocessor(s), that require software (e.g., firmware) for operation, but the software may not be present when not required for operation.

[0037] This definition of circuitry applies to all uses of the term in this application, including in any claims. As another example, as used in this application, the term circuitry also covers an implementation of only a hardware circuit or processor (or multiple processors) or portions of a hardware circuit or processor and its (or their) accompanying software and / or firmware. For example, if applicable to a particular claim element, the term circuitry also covers a baseband integrated circuit or processor integrated circuit for a mobile device, or a similar integrated circuit in a server, cellular network device, or other computing or network device.

[0038] As used herein, the term "communication network" refers to a network that complies with any suitable communication standard, such as New Radio (NR), Long Term Evolution (LTE), Advanced LTE (LTE-A), Wideband Code Division Multiple Access (WCDMA), High Speed ​​Packet Access (HSPA), Narrowband Internet of Things (NB-IoT), etc. In addition, the communication between the terminal device and the network equipment in the communication network can be performed according to any suitable generation of communication protocols, including but not limited to the 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 protocols currently known or developed in the future. The embodiments of the present disclosure can be applied to various communication systems. In view of the rapid development of communication, there are of course future types of communication technologies and systems that can implement the present disclosure. The scope of the present disclosure should not be considered to be limited to the above-mentioned systems.

[0039] As used herein, the term "network device" refers to a node in a communication network, via which a terminal device accesses the network and receives services from it. A network device may refer to a base station (BS) or an access point (AP), for example, a Node B (Node B or NB), an evolved NodeB (eNode B or eNB), a NR NB (also referred to 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 femto, a micro, a non-terrestrial network (NTN) or a non-grounded network device (such as a satellite network device), a low-earth orbit (LEO) satellite and a geosynchronous earth orbit (GEO) satellite, an aircraft network device, etc., depending on the terminology and technology applied. In some example embodiments, a radio access network (RAN) separation architecture includes a centralized unit (CU) and a distributed unit (DU) at an IAB donor node. An IAB node includes a mobile terminal (IAB-MT) portion that behaves like a UE toward a parent node, and a DU portion of the IAB node behaves like a base station to a next-hop IAB node.

[0040] The term "terminal device" refers to any terminal device capable of wireless communication. As an example and not limitation, the terminal device may also be referred to as a communication device, a user equipment (UE), a user station (SS), a portable user station, a mobile station (MS) or an access terminal (AT). The terminal device may include, but is not limited to, a mobile phone, a cellular phone, a smart phone, a voice over IP (VoIP) phone, a wireless local loop phone, a tablet computer, a wearable terminal device, a personal digital assistant (PDA), a portable computer, a desktop computer, an image capture terminal device such as a digital camera, a game terminal device, a music storage and playback facility, a vehicle-mounted wireless terminal device, a wireless endpoint, a mobile station, a laptop embedded device (LEE), a laptop device (LME), a USB dongle, a smart device, a wireless customer premises equipment (CPE), an Internet of Things (IoT) device, a watch or other wearable device, a head-mounted display (HMD), a vehicle, a drone, medical equipment and applications (e.g., remote surgery), industrial equipment and applications (e.g., robots and / or other wireless devices operating in industrial and / or automated processing chain environments), consumer electronic devices, equipment operating on commercial and / or industrial wireless networks, etc. The terminal device may also correspond to the mobile terminal (MT) part of the IAB node (eg, a relay node).In the following description, the terms "terminal device", "communication device", "terminal", "user equipment" and "UE" may be used interchangeably.

[0041] As used herein, the term "resource", "transmission resource", "resource block", "physical resource block" (PRB), "uplink resource" or "downlink resource" may refer to any resource used to perform communication, for example, communication between a terminal device and a network device, such as time domain resources, frequency domain resources, spatial domain resources, code domain resources or any other resource capable of communication. In the following, unless explicitly stated, resources in the frequency domain and the time domain will be used as examples of transmission resources for describing some example embodiments of the present disclosure. Note that the example embodiments of the present disclosure are equally applicable to other resources in other domains.

[0042] Figure 1 1 shows an example communication network 100 in which embodiments of the present disclosure may be implemented. Figure 1As shown, the communication network 100 may include an access point (AP) 110 (hereinafter may also be referred to as the first device 110 or the X-intra-subnet AP 110). The 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 may also be collectively referred to as the X-intra-subnet terminal device 130, the X-intra-subnet UE 130 or the third device 130). The AP 110 may communicate with the terminal devices 130-1 and 130-2 within the coverage 101, and the coverage 101 may be referred to as the X-intra-subnet. The X-intra-subnet may be considered as a part of the communication network 100.

[0043] The communication network 100 may further include a network device 120 (hereinafter may also be referred to as a second device 120 or a base station (BS) 120), which may communicate with the AP 110 within the coverage 102. In some scenarios, the coverage 101 may be within the coverage 102. In some other scenarios, the coverage 101 may be outside the coverage 102.

[0044] It should be understood that Figure 1 The number of subnets, network devices, and terminal devices within X shown in FIG. 1 is for illustration purposes only and does not imply any limitation. Communication network 100 may include any suitable number of network devices and terminal devices.

[0045] Communications in the communication environment 100 may be implemented according to any suitable communication protocol, including, but not limited to, cellular communication protocols of the first generation (1G), second generation (2G), third generation (3G), fourth generation (4G), fifth generation (5G), sixth generation (6G), etc., wireless local area network communication protocols such as Institute of Electrical and Electronics Engineers (IEEE) 802.11, etc., and / or any other protocol currently known or developed in the future. In addition, communications may utilize any suitable wireless communication technology, including, but not limited to: code division multiple access (CDMA), frequency division multiple access (FDMA), time division multiple access (TDMA), frequency division duplex (FDD), time division duplex (TDD), multiple input multiple output (MIMO), orthogonal frequency division multiple access (OFDM), discrete Fourier transform spread OFDM (DFT-s-OFDM) and / or any other technology currently known or developed in the future.

[0046] As described above, 6G radio access technology is expected to impose extremely high requirements in terms of latency, reliability and / or throughput, and the intra-X subnet (i.e., subnet) can be considered as a promising component of the 6G network to meet these extreme performance requirements.

[0047] In addition to supporting extreme performance requirements, subnets can also be implemented with low transmit power, which results in limited coverage. For subnets, a star or tree topology can be adopted, consisting of an intra-X subnet AP and one or more intra-X subnet UEs under the control of the AP. The mobility of subnet UEs across different subnets is limited. The subnet can be part of the overlay wide area network (WAN) network, but should continue to work when it is outside the network coverage.

[0048] For example, typical intra-X subnet use cases may include intra-robot, intra-production module subnet, and intra-vehicle subnet, which have extreme performance requirements in terms of reliability (up to 6 nines or higher) and latency (down to 100 microseconds or even lower), e.g., for high-demand periodic deterministic communication services. These use cases may be the most challenging scenarios in 6G systems.

[0049] On the one hand, the intra-X subnet AP can serve and manage the intra-X subnet UE within the coverage of the fine subnet. On the other hand, the intra-X subnet AP can be connected to the BS covering the WAN, which can control and coordinate different subnets to a certain extent.

[0050] The specific architectural characteristics of the subnets as described above allow the overlay BS to perform centralized subnet resource selection for subnets to achieve extreme performance, because the overlay BS has a comprehensive understanding of the interference situation between subnets, and thus has great potential to achieve better performance than distributed subnet resource selection. In particular, centralized subnet resource selection may play an important role in extreme performance provisioning, especially for subnets in critical and challenging interference situations.

[0051] Furthermore, an enabling technology component to provide extreme performance requirements, especially in terms of latency and reliability (e.g., six nines or more reliability at 100 microseconds latency for motion control applications like in production module subnetworks or in-vehicle subnetworks) is subband channelization of the carrier, i.e., the carrier bandwidth is divided into multiple subbands, with each subnet operating in one (or more) subbands and having continuous operation in the time domain to provide extreme connectivity. In this case, centralized subnet resource selection essentially boils down to a centralized subband selection problem for the subnets, such that each subnet is assigned one (or more) subbands while keeping the inter-subnet interference as low as possible, especially for subnets with weak intra-subnet channels and / or with severe inter-subnet interference.

[0052] Therefore, for demanding periodic deterministic communication services, it is expected that interference can be minimized. To this end, there are two key points to be discussed, namely, how to feed back the inter-subnet interference from the subnet to the overlay BS to achieve advanced centralized subband selection for the subnet and flexibly optimize and balance various system performances; and how to design and implement a centralized subband allocation algorithm for the subnet based on the inter-subnet interference feedback.

[0053] According to some example embodiments of the present disclosure, a solution for a subband selection process based on interference weighting is provided. In the solution, a BS in a radio access network (RAN) sends a configuration for determining weighted inter-subnet interference between the first subnet and at least one second subnet of the RAN to an intra-X subnet AP in a first subnet of the RAN. The configuration may indicate at least one of the following: a first weighting for weighted inter-subnet interference, a first weighting for weighted inter-subnet interference, and a second weighting for the first weighting of weighted inter-subnet interference. Based at least on the received configuration, the intra-X subnet AP determines the weighted inter-subnet interference and sends the weighted inter-subnet interference to the BS for selecting at least one subband for the first subnet.

[0054] Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0055] Reference now Figure 2 , which shows a signaling diagram 200 for communication according to some example embodiments of the present disclosure. Figure 2 As shown, the signaling diagram 200 involves the intra-X subnet AP 110 (hereinafter may also be referred to as AP 110), BS 120 and the intra-X subnet UE 130 (hereinafter may also be referred to as UE 130). For the purpose of discussion, reference is made to Figure 1 To describe the signaling diagram 200. Figure 2 One AP 110 and one UE 130 are shown in FIG. 1 , but it should be understood that there may be multiple APs and multiple UEs that perform similar operations as described below with respect to the AP 110 and the UE 130, respectively.

[0056] like Figure 2 As shown, BS120 may send (at step 202) to AP 110 a configuration for determining weighted inter-subnet interference between a first subnet in which AP 110 is located and at least one second subnet. For example, the configuration for determining weighted inter-subnet interference may be sent from BS120 to AP 110 in the first subnet or other APs in at least one second subnet via dedicated signaling and / or public signaling in a multicast or broadcast manner. In some embodiments, the configuration may include at least one of the following: 1) a first measurement configuration for a reference signal of the first subnet; 2) a second measurement configuration for a reference signal of at least one second subnet; 3) first configuration information associated with a first weighting, or 4) second configuration information associated with a second weighting.

[0057] In some embodiments, AP 110 may also forward (at step 204) the first measurement configuration, the second measurement configuration, and the first configuration information to UE 130 in the first subnet to determine a first interference vector. The first interference vector is associated with a weighted inter-subnet interference between the first subnet and at least one second subnet of the wireless access network. In some other embodiments, both AP 110 and UE 130 may directly receive a configuration for determining weighted inter-subnet interference from BS 120. In this case, it is assumed that UE 130 has the ability to monitor control and / or data transmission from BS 120.

[0058] In some example embodiments, the first measurement configuration may include configuration of an intra-subnet reference signal (RS) port for a first subnet, and the second measurement configuration may include at least configuration of an RS port for at least one second subnet.

[0059] The configuration for the RS port may include information about the time / frequency / code resources for the RS port. For the configuration of RS ports for different subnets, preferably, the RS (time / frequency) resources are arranged in the same transmission period or adjacent periods, and the RS ports are orthogonal or quasi-orthogonal to each other in the time domain, frequency domain or code domain to facilitate measurement operations. In addition, it can be assumed that the subnet AP and / or subnet UE may be involved in the measurement of RS signals within / between subnets.

[0060] In addition, the first configuration information and the second configuration information respectively contain information associated with the first weighting and the second weighting for the measured inter-subnet interference. In some embodiments, the interference weighting operation can be implemented in two stages, namely, a first stage weighting operation (i.e., the first weighting mentioned), using a channel-related weighting factor; and a second stage weighting operation (i.e., the second weighting mentioned), using a weighting factor related to the service quality (QoS). The first stage weighting operation is intended to adjust the interference level according to the vulnerability of the associated subnet link, while the second stage weighting operation can be performed on a merged (or combined) weighted interference vector corresponding to multiple subnet UEs within the first subnet. The second stage weighting operation can be performed on the merged weighted interference vector using a weighting factor determined by the subnet service QoS requirements.

[0061] For example, the first configuration information associated with the first weighting may indicate a first weighting based on a channel-dependent weighting factor or a channel-independent weighting factor. In the case of using the first weighting of the channel-dependent weighting factor, the weighting factor may be the inverse of the intra-subnet channel gain between the AP 110 and the UE (e.g., UE 130) in the first subnet. In the case of using the first weighting of the channel-independent weighting factor, the weighting factor may be fixed to 1 or other fixed values.

[0062] The second configuration information associated with the second weighting may indicate a mapping between a service QoS requirement and a set of second-stage weighting factors. For example, AP 110 may determine the second-stage weighting factors of the subnet based on the service QoS requirement of the subnet and the mapping rule indicated by the second configuration information associated with the second weighting. The mapping rule between the service QoS requirement and the second-stage weighting factor may be predefined / preconfigured.

[0063] Based on the received configuration information about interference weighting and the measurement configuration about the RS, the subnet node (eg, UE 130 ) may perform (at step 206 ) corresponding inter-subnet interference measurement and a first weighting operation.

[0064] Assume that the total frequency resources available for subnet operation are divided into M subbands, which are shared by N subnets (each subnet can usually occupy one subband to support transmission within the subnet), and N is usually greater than M, and the intra-subnet channel gain and inter-subnet interference level can be subband selective, depending on the subband bandwidth or channel coherence bandwidth. Assume that there are K in the nth subnet (or called subnet n). n Devices with index set ) involves interference management, then the device (e.g., UE 130) in subband m∈S of the nth subnet M = {1,2,…,M} The measured / estimated useful and interfering received signal powers can be expressed as follows: Among them, the element Represents the useful signal in the subnet, and other elements represent signals from S N The inter-subnet interference of other subnets in the subnet to device k in subnet n. It should be understood that interference represents the received power level, including the transmit power and the channel gain.

[0065] Based on the measurement results, UE 130 may perform a first stage weighting operation using the first stage weighting factor.

[0066] In some embodiments, the first stage weighting factor may be the received useful signal power (ie ), so the weighted interference vector (determined by device k in subnet n, and this interference vector can be called the first interference vector) can be determined as follows:

[0067] In some other embodiments, it should be understood that the first stage weighting factor may also adopt other values.The weighted interference vector may be obtained by the UE for each subband or each broadband.

[0068] During the first stage weighted operation, inter-subnet interference and intra-subnet useful link gain may be balanced to achieve the purpose of interference minimization, throughput enhancement, and protection of weak subnets.

[0069] UE 130 may then feed back (at step 208) the result of the first stage weighting operation, ie, the weighted interference vector, to AP 110.

[0070] As another option, UE 130 may also provide the result of interference measurement to AP 110, and the first stage weighting operation may be performed at AP 110 based on a similar manner as described above.

[0071] Based on weighted interference vectors received from UEs in a subnet managed by AP 110 or estimated by AP 110 based on measurements of UEs, AP 110 may combine the weighted interference vectors and perform (at step 210) a second stage weighting operation.

[0072] For example, for merging, as an option, the weighted interference vectors may be averaged or added to obtain a combined weighted interference vector. For example, AP 110 may calculate an average or sum of weighted interference vectors from multiple UEs and use it as a combined weighted interference vector, as shown below: or in Representing a collection The cardinality of K n , that is, the number of devices in subnet n involved in interference management.

[0073] As another option, the AP may adopt the weighted interference vector from a specific UE, for example, a specific weighted interference vector with the maximum aggregate weighted interference may be selected as the combined weighted interference vector. n,k The UE with the largest sum can be described as follows: In this case, it should be understood that the AP 110 of the subnet n may only request the AP with index k= The combined weighted interference is given by It represents that , can be called the second interference vector.

[0074] In the second stage weighting operation, the combined weighted interference can be further weighted by AP 110, for example, based on a second stage weighting factor that depends on the service QoS requirement. The higher the service QoS requirement, the larger the corresponding second stage weighting factor. Therefore, the interference measurement of the subnet with high-demand service types can be amplified to a certain extent to obtain more protection in the centralized subband selection.

[0075] For example, the second-stage weighted operation of subnet n can be described as follows: The weighting factor f of subnet n is n It is determined according to second configuration information associated with the second weighting, or based on a predefined or preconfigured mapping rule between the service QoS requirement and the corresponding second weighting factor.

[0076] It should be understood that for the weighted interference vector, both subband-based interference vector feedback and broadband-based interference vector feedback can be supported. For example, if the subband bandwidth is relatively large and there is obvious channel frequency selectivity on different subbands, it can be (pre-)configured to use subband-based interference vector feedback. In the case of subband-based interference vector feedback, subnet n may need to Feedback to the coverage BS, in the case of broadband-based interference vector feedback, the average interference vector on multiple subbands needs to be fed back, that is, Here, the interference vector fed back by the AP of subnet n to the overlay BS is referred to as the weighted inter-subnet interference determined based on at least the configuration from the BS.

[0077] AP 110 may send (at step 212) the result of the second stage weighting operation, i.e., the weighted inter-subnet interference, to BS 120. It should be understood that BS 120 may receive the weighted inter-subnet interference from multiple APs in all relevant subnets (e.g., a first subnet associated with AP 110 and at least one second subnet).

[0078] Based on the weighted inter-subnet interference fed back from the relevant subnet APs, BS 120 can construct a weighted interference matrix (IM). For example, BS constructs the interference matrix W for each subnet as follows: In the case of broadband interference vector feedback, or In the case of broadband interference vector feedback,

[0079] In this way, a per-subnet interference matrix (N is the number of subnets and M is the number of subbands) of size N×N (wideband feedback) or N×N×M (subband feedback) can be constructed by BS 120. It should be understood that the interference matrix on each third dimension is not necessarily symmetric, that is, the entry corresponding to the interference received by subnet n from subnet m is not necessarily the same as the interference received by subnet m from subnet n.

[0080] Based on the constructed interference matrix, a subband selection process is performed by BS 120 (at step 214) to allocate subbands to subnets. For example, the subband selection process may be performed by BS 120 in an iterative manner to minimize the weighted sum of interferences over all subnets.

[0081] For example, BS 120 may determine the order of subnets for the resource selection process based on the aggregate weighted interference experienced by the subnet receivers, with the more interfered subnets being processed earlier.

[0082] Then, BS 120 may determine an initial subband allocation state (SAS) showing the subband indexes allocated to each subnet. The initial SAS may be determined randomly, or fed back from the subnet AP, or determined in other suitable ways.

[0083] Subsequently, the subband selection may be iteratively performed for the subnet in the determined order. For the subnet being processed, for each of all subbands, a weighted interference sum may be calculated based on the latest SAS, the sum consisting of two parts, namely, the weighted interference sum from all other subnets using the same subband, and the weighted interference sum for all subnets using the same subband. The subband with the minimum weighted interference sum may then be selected as the temporary subband selection for the subnet, and the SAS may then be updated accordingly.

[0084] It should be understood that the above process for subband selection may be performed for multiple rounds, which may stabilize / minimize the sum of weighted interferences on all subnets and obtain the final subband selection result.

[0085] For example, the algorithm for the iterative subband selection process can be expressed as follows: Table 1: Example of iterative algorithm for subband selection

[0086] This algorithm can demonstrate an interesting and important property, namely that the sum of weighted interferences of all subnetworks decreases monotonically with iterations. The proof of this property is provided as follows: When x=y, otherwise Conclusion I d≤I d-1 It shows that the sum of weighted interferences of all relevant subnetworks decreases with the number of iterations.

[0087] Back to Figure 2 After determining the subband selection, BS 120 may notify (at step 216) the corresponding subnet AP (e.g., AP 110) of the subband selection result. Then, the subnets (e.g., the first subnet associated with AP 110) may simultaneously apply the newly allocated subbands according to the instructions from BS 120.

[0088] The solution of the present disclosure proposes a weighted operation for inter-subnet interference and an associated low-complexity subband selection process to minimize the total weighted interference on all subnets, which can flexibly optimize and balance various system performance aspects, such as interference avoidance / minimization, throughput enhancement, protection for weak subnets (i.e., subnets with weak channels and / or large interference), and priority for subnets with high-demand service types.

[0089] In addition, the merging of multiple weighted interference vectors within a subnet and the flexible configuration of subband-based or wideband-based feedback help to balance the feedback overhead and system performance.

[0090] In this way, extreme reliability performance requirements can be achieved for the subnet.

[0091] Figure 3 A flowchart of an example method 300 of a subband selection process based on interference weighting according to some example embodiments of the present disclosure is shown. The method 300 may be implemented in a Figure 1 For the purpose of discussion, reference will be made to Figure 1 Method 300 is described.

[0092] At 310, a first device 110 in a first subnet of a wireless access network receives a configuration for determining weighted inter-subnet interference between the first subnet and at least one second subnet of the wireless access network from a second device in the wireless access network. The configuration indicates at least one of: a first weighting for weighted inter-subnet interference or a second weighting for weighted inter-subnet interference.

[0093] In some example embodiments, the first device may receive a configuration for determining weighted inter-subnet interference via at least one of: dedicated signaling or common signaling. .

[0094] In some example embodiments, a configuration for determining weighted inter-subnet interference includes at least one of the following: a first measurement configuration for a reference signal of a first subnet, a second measurement configuration for a reference signal of at least one second subnet, first configuration information associated with a first weighting, and second configuration information associated with a second weighting.

[0095] In some example embodiments, the first device may send a first measurement configuration, a second measurement configuration, and first configuration information to at least one third device in the first subnet; and receive at least one first interference vector determined based on the first measurement configuration, the second measurement configuration, and the first configuration information from the at least one third device.

[0096] At 320, the first device determines a weighted inter-subnet interference based at least on the configuration.

[0097] In some example embodiments, the configuration for determining weighted inter-subnet interference includes second configuration information, and the first device can obtain a second interference vector based on at least one first interference vector received from at least one third device; determine a second weighting factor corresponding to a quality of service requirement of the first subnet based on the second configuration information associated with the second weighting; and determine the weighted inter-subnet interference based on the second interference vector and the second weighting factor.

[0098] In some example embodiments, the second configuration information associated with the second weighting indicates a mapping between a plurality of second weighting factors and different quality of service requirements, and the first device may determine the second weighting factor based on the quality of service requirement of the first subnet and the mapping.

[0099] In some example embodiments, the first device may obtain the second interference vector by performing at least one of the following: calculating an average of at least one first interference vector, calculating a sum of at least one first interference vector, and selecting a first interference vector having a maximum aggregate weighted interference from at least one first interference vector.

[0100] At 330, the first device sends the weighted inter-subnet interference to the second device for selecting at least one subband for the first subnet.

[0101] In some example embodiments, after sending the weighted inter-subnet interference to the second device, the first device may receive information indicating at least one subband for the first subnet from the second device.

[0102] In some example embodiments, the first device comprises an access point, the second device comprises a base station, and the third device comprises a terminal device.

[0103] Figure 4 A flowchart of an example method 400 of a subband selection process based on interference weighting according to some example embodiments of the present disclosure is shown. The method 400 may be implemented in a Figure 1 The second device 120 is shown as being implemented. For the purpose of discussion, reference will be made to Figure 1 Method 400 is described.

[0104] At 410, a second device in the wireless access network sends a configuration for determining weighted inter-subnet interference between at least one subnet to at least one first device in at least one subnet of the wireless access network. The configuration indicates at least one of the following: a first weighting for weighted inter-subnet interference or a second weighting for weighted inter-subnet interference.

[0105] In some example embodiments, the second device may send a configuration for determining weighted inter-subnet interference to the at least one first device via at least one of: dedicated signaling or common signaling.

[0106] In some example embodiments, the configuration for determining the weighted inter-subnet interference includes at least one of the following: a measurement configuration of a reference signal for at least one subnet, first configuration information associated with a first weighting, and second configuration information associated with a second weighting.

[0107] In some example embodiments, the second configuration information associated with the second weighting indicates a mapping between a plurality of second weighting factors and different quality of service requirements.

[0108] At 420, the second device receives weighted inter-subnet interference from at least one first device for selecting at least one subband for the first subnet.

[0109] In some example embodiments, the second device may select at least one subband for at least one subnet based at least on weighted inter-subnet interference; and transmit the at least one subband to at least one first device in the at least one subnet.

[0110] In some example embodiments, the first device comprises an access point and the second device comprises a base station.

[0111] Figure 5 A flowchart of an example method 500 of a subband selection process based on interference weighting according to some example embodiments of the present disclosure is shown. The method 500 may be implemented in a Figure 1 For the purpose of discussion, reference will be made to Figure 1 Method 500 is described.

[0112] At 510, a third device in a first subnet of a radio access network receives a configuration for determining a first interference vector from a first device in the first subnet. The first interference vector is associated with weighted inter-subnet interference between the first subnet and at least one second subnet of the radio access network, and the configuration indicates at least a first weighting for the weighted inter-subnet interference.

[0113] In some example embodiments, the configuration for determining weighted inter-subnet interference includes at least one of the following: a first measurement configuration for a reference signal of a first subnet, a second measurement configuration for a reference signal of at least one second subnet, and first configuration information associated with a first weighting.

[0114] At 520 , the third device transmits the first interference vector determined based on the configuration to the first device.

[0115] In some example embodiments, the third device may perform interference measurement of reference signals of the first network and the at least one second subnet based on the first measurement configuration and the second measurement configuration on the RS port.

[0116] In some example embodiments, the third device may determine the first interference vector based on a measurement result of the interference measurement and a first weighting factor of the first weighting determined based on first configuration information associated with the first weighting.

[0117] In some example embodiments, the first weighting factor is the inverse of a measured received power of a reference signal of the first subnet.

[0118] In some example embodiments, the first device comprises an access point and the third device comprises a terminal device.

[0119] In some example embodiments, an apparatus capable of performing method 300 (e.g., implemented at first device 110) may include components for performing the corresponding steps of method 300. The apparatus may be implemented in any suitable form. For example, the apparatus may be implemented in a circuit or a software module.

[0120] In some example embodiments, the apparatus includes: means for receiving, from a second device in a wireless access network, a configuration for determining weighted inter-subnet interference between a first subnet of the wireless access network and at least one second subnet of the wireless access network, wherein the configuration indicates at least one of: a first weighting for the weighted inter-subnet interference, a second weighting for the weighted inter-subnet interference; means for determining the weighted inter-subnet interference based at least on the configuration; and means for sending the weighted inter-subnet interference to the second device for selecting at least one subband for the first subnet.

[0121] In some example embodiments, means for receiving a configuration for determining weighted inter-subnet interference includes means for receiving the configuration via at least one of dedicated signaling or common signaling.

[0122] In some example embodiments, a configuration for determining weighted inter-subnet interference includes at least one of the following: a first measurement configuration for a reference signal of a first subnet, a second measurement configuration for a reference signal of at least one second subnet, first configuration information associated with a first weighting, and second configuration information associated with a second weighting.

[0123] In some example embodiments, the apparatus further includes: a component for sending a first measurement configuration and a second measurement configuration and first configuration information to at least one third device in the first subnet; and a component for receiving at least one first interference vector determined based on the first measurement configuration and the second measurement configuration and the first configuration information from the at least one third device.

[0124] In some example embodiments, the configuration for determining weighted inter-subnet interference includes second configuration information, and the components for determining weighted inter-subnet interference include: a component for obtaining a second interference vector based on at least one first interference vector received from at least one third device; a component for determining a second weighting factor corresponding to a quality of service requirement of the first subnet based on second configuration information associated with the second weighting; and a component for determining the weighted inter-subnet interference based on the second interference vector and the second weighting factor.

[0125] In some example embodiments, second configuration information associated with the second weighting indicates a mapping between a plurality of second weighting factors and different quality of service requirements, and the means for determining the second weighting factor further comprises means for determining the second weighting factor based on the quality of service requirement of the first subnet and the mapping.

[0126] In some example embodiments, the component for obtaining the second interference vector also includes a component for obtaining the second interference vector by performing at least one of the following: calculating an average value of at least one first interference vector, calculating a sum of at least one first interference vector, and selecting a first interference vector having a maximum aggregate weighted interference from at least one first interference vector.

[0127] In some example embodiments, the apparatus further comprises means for receiving, from the second device, information indicating at least one subband for the first subnet after sending the weighted inter-subnet interference to the second device.

[0128] In some example embodiments, an apparatus capable of performing method 400 (e.g., implemented at second device 120) may include components for performing the corresponding steps of method 400. The apparatus may be implemented in any suitable form. For example, the apparatus may be implemented in a circuit or a software module.

[0129] In some example embodiments, an apparatus includes: means for sending a configuration for determining weighted inter-subnet interference between at least one subnet of a wireless access network to at least one first device in at least one subnet of the wireless access network, wherein the configuration indicates at least one of: a first weighting for the weighted inter-subnet interference, a second weighting for the weighted inter-subnet interference; and means for receiving the weighted inter-subnet interference from the at least one first device, for selecting at least one subband for the first subnet.

[0130] In some example embodiments, means for transmitting a configuration for determining weighted inter-subnet interference comprises means for transmitting the configuration via at least one of dedicated signaling or common signaling.

[0131] In some example embodiments, the configuration for determining the weighted inter-subnet interference includes at least one of the following: a measurement configuration of a reference signal for at least one subnet, first configuration information associated with a first weighting, and second configuration information associated with a second weighting.

[0132] In some example embodiments, the second configuration information associated with the second weighting indicates a mapping between a plurality of second weighting factors and different quality of service requirements.

[0133] In some example embodiments, the apparatus further comprises: means for selecting at least one subband for at least one subnet based at least on weighted inter-subnet interference; and means for transmitting the at least one subband to at least one first device in the at least one subnet.

[0134] In some example embodiments, an apparatus capable of performing method 500 (e.g., implemented at third device 130) may include components for performing the corresponding steps of method 500. The apparatus may be implemented in any suitable form. For example, the apparatus may be implemented in a circuit or a software module.

[0135] In some example embodiments, an apparatus includes: means for receiving, from a first device in a first subnet of a wireless access network, a configuration for determining a first interference vector, wherein the first interference vector is associated with weighted inter-subnet interference between the first subnet and at least one second subnet of the wireless access network, and the configuration indicates at least a first weighting for the weighted inter-subnet interference; and means for sending, to the first device, the first interference vector determined based on the configuration.

[0136] In some example embodiments, the configuration for determining weighted inter-subnet interference includes at least one of the following: a first measurement configuration for a reference signal of a first subnet, a second measurement configuration for a reference signal of at least one second subnet, and first configuration information associated with a first weighting.

[0137] In some example embodiments, the apparatus further includes means for performing interference measurement of reference signals of the first network and the at least one second subnet based on the first measurement configuration and the second measurement configuration on the RS port.

[0138] In some example embodiments, the apparatus further comprises means for determining a first interference vector based on a measurement result of the interference measurement and a first weighting factor of the first weighting determined based on first configuration information associated with the first weighting.

[0139] In some example embodiments, the first weighting factor is the inverse of a measured received power of a reference signal of the first subnet.

[0140] Figure 6 600 is a simplified block diagram of a device 600 suitable for implementing an example embodiment of the present disclosure. The device 600 may be provided to implement a communication device, such as Figure 1 The AP 110, BS 120 or UE 130 is shown. As shown, the device 600 includes one or more processors 610, one or more memories 620 coupled to the processor 610, and one or more communication modules 640 coupled to the processor 610.

[0141] The communication module 640 is used for two-way communication. The communication module 640 has one or more communication interfaces to facilitate communication with one or more other modules or devices. The communication interface may represent any interface necessary to communicate with other network elements. In some example embodiments, the communication module 640 may include at least one antenna.

[0142] As non-limiting examples, processor 610 may be of any type suitable for a local technology network, and may include one or more of the following: a general purpose computer, a special purpose computer, a microprocessor, a digital signal processor (DSP), and a processor based on a multi-core processor architecture. Device 600 may have multiple processors, such as application specific integrated circuit chips that are time slaved to a clock of a synchronized main processor.

[0143] The memory 620 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) 624, electrically programmable read-only memory (EPROM), flash memory, hard disk, compact disk (CD), digital video disk (DVD), optical disk, laser disk, and other magnetic storage and / or optical storage. Examples of volatile memories include, but are not limited to, random access memory (RAM) 622 and other volatile memories that will not last for the duration of a power outage.

[0144] The computer program 630 includes computer executable instructions executed by the associated processor 610. The instructions of the program 630 may include instructions for performing the operations / actions of some example embodiments of the present disclosure. The program 630 may be stored in a memory, such as ROM 624. The processor 610 may perform any suitable actions and processes by loading the program 630 into the RAM 622.

[0145] The exemplary embodiments of the present disclosure may be implemented by means of a program 630, so that the device 600 may execute the Figures 2 to 5 Any process of the present disclosure discussed. The exemplary embodiments of the present disclosure may also be implemented by hardware or by a combination of software and hardware.

[0146] In some example embodiments, the program 630 may be tangibly embodied in a computer-readable medium that may be included in the device 600 (such as in the memory 620) or in other storage devices accessible to the device 600. The device 600 may load the program 630 from the computer-readable medium to the RAM 622 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. The term "non-transitory" as used herein is a limitation of the medium itself (i.e., tangible, not a signal), not a limitation on data storage persistence (e.g., RAM versus ROM).

[0147] Figure 7 An example of a computer readable medium 700 is shown which may be in the form of a CD, DVD or other optical storage disk. The computer readable medium 700 has a program 630 stored thereon.

[0148] Generally, various embodiments of the present disclosure may be implemented in hardware or dedicated circuits, software, logic, or any combination thereof. Some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software that may be executed by a controller, microprocessor, or other computing device. Although various aspects of the embodiments of the present disclosure are shown and described as block diagrams, flow charts, or using some other graphical representations, it should be understood that, as non-limiting examples, the blocks, devices, systems, techniques, or methods described herein may be implemented in hardware, software, firmware, dedicated circuits or logic, general hardware or controllers or other computing devices, or some combination thereof.

[0149] Some example embodiments of the present 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, such as those included in a program module executed in a device on a target physical or virtual processor, to perform any method as above. Typically, a program module includes 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 the program modules can be combined or split between program modules as needed. Machine executable instructions for program modules can be executed in local or distributed devices. In distributed devices, program modules can be located in both local and remote storage media.

[0150] The program code for executing the method of the present disclosure can be written in any combination of one or more programming languages. The program code can be provided to a processor or controller of a general-purpose computer, a special-purpose computer or other programmable data processing device so that the program code enables the functions / operations specified in the flow chart and / or block diagram to be implemented when executed by the processor or controller. The program code can be executed entirely on the machine, partially on the machine, as an independent software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0151] In the context of the present disclosure, computer program codes or related data may be carried by any suitable carrier to enable a device, apparatus or processor to perform various processes and operations as described above. Examples of carriers include signals, computer readable media, etc.

[0152] The computer readable medium may be a computer readable signal medium or a computer readable storage medium. The computer readable medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared or semiconductor systems, devices or apparatuses, or any suitable combination of the foregoing. More specific examples of computer readable storage media would include an electrical connection with one or more wires, a portable computer disk, 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 disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0153] In addition, although operations are depicted in a particular order, this should not be understood as requiring such operations to be performed in the particular order shown or in sequence, or performing all of the operations shown 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 above discussion, these should not be interpreted as limitations on the scope of the present disclosure, but should be interpreted as descriptions of features that may be specific to a particular embodiment. Unless explicitly stated, certain features described in the context of a separate embodiment may also be implemented in combination in a single embodiment. On the contrary, unless explicitly stated, the various features described in the context of a single embodiment may also be implemented in multiple embodiments individually or in any suitable sub-combination.

[0154] Although the disclosure has been described in language specific to structural features and / or methodological acts, it should be understood that the disclosure defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.

Claims

1. A first device in a first subnet of a wireless access network, comprising: at least one processor; as well as at least one memory storing instructions that, when executed by the at least one processor, cause the first device to at least: Receiving, from a second device in the radio access network, a configuration for determining weighted inter-subnet interference between the first subnet and at least one second subnet of the radio access network, wherein the configuration indicates at least one of the following: a first weighting for the weighted inter-subnet interference, a second weighting for the weighted inter-subnet interference; determining the weighted inter-subnet interference based at least on the configuration; and The weighted inter-subnet interference is sent to the second device for selecting at least one subband for the first subnet.

2. The first device of claim 1 , wherein the first device is caused to receive the configuration for determining the weighted inter-subnet interference via at least one of: Dedicated signaling, Public signaling.

3. The first device of claim 1 , wherein the configuration for determining the weighted inter-subnet interference comprises at least one of: a first measurement configuration for a reference signal of the first subnet; a second measurement configuration for a reference signal of the at least one second subnet, first configuration information associated with the first weighting, Second configuration information associated with the second weighting.

4. The first device according to claim 3, wherein the first device is caused to: Sending the first measurement configuration, the second measurement configuration, and the first configuration information to at least one third device in the first subnet; and At least one first interference vector determined based on the first measurement configuration, the second measurement configuration, and the first configuration information is received from the at least one third device.

5. The first device according to claim 4, wherein the configuration for determining the weighted inter-subnet interference includes the second configuration information, the first device being caused to: obtaining a second interference vector based on the at least one first interference vector received from the at least one third device; Determining, based on the second configuration information associated with the second weighting, a second weighting factor corresponding to a quality of service requirement of the first subnet; as well as The weighted inter-subnet interference is determined based on the second interference vector and the second weighting factor.

6. The first device according to claim 5, wherein the second configuration information associated with the second weighting indicates a mapping between a plurality of second weighting factors and different quality of service requirements, and wherein the first device is caused to: The second weighting factor is determined based on the quality of service requirement of the first subnet and the mapping.

7. The first device according to claim 5, wherein the first device obtains the second interference vector by performing at least one of the following: calculating an average value of the at least one first interference vector, Calculating the sum of the at least one first interference vector, or A first interference vector having a maximum aggregate weighted interference is selected from the at least one first interference vector.

8. The first device according to any one of claims 1 to 7, wherein the first device is further caused to: After sending the weighted inter-subnet interference to the second device, information indicating the at least one subband used for the first subnet is received from the second device. 9 . The first device according to claim 8 , wherein the first device comprises an access point, the second device comprises a base station, and the third device comprises a terminal device.

10. A second device in a wireless access network, comprising: at least one processor; as well as at least one memory storing instructions that, when executed by the at least one processor, cause the second device to at least: Sending a configuration for determining weighted inter-subnet interference between at least one subnet of the radio access network to at least one first device in at least one subnet of the radio access network, wherein the configuration indicates at least one of the following: a first weighting for the weighted inter-subnet interference, a second weighting for the weighted inter-subnet interference; and The weighted inter-subnet interference is received from the at least one first device for selecting at least one subband for the first subnet.

11. The second device of claim 10, wherein the second device is caused to send the configuration for determining the weighted inter-subnet interference to the at least one first device via at least one of: Dedicated signaling, Public signaling.

12. The second device of claim 10, wherein the configuration for determining the weighted inter-subnet interference comprises at least one of: a measurement configuration of a reference signal for the at least one subnet; first configuration information associated with the first weighting, Second configuration information associated with the second weighting. 13 . The second device according to claim 12 , wherein the second configuration information associated with the second weighting indicates a mapping between a plurality of second weighting factors and different quality of service requirements.

14. The second device according to any one of claims 10 to 13, wherein the second device is caused to: selecting the at least one subband for the at least one subnet based at least on the weighted inter-subnet interference; and The at least one sub-band is sent to the at least one first device in the at least one sub-network.

15. The second device according to any one of claims 10 to 14, wherein the first device comprises an access point and the second device comprises a base station.

16. A third device in a first subnet of a wireless access network, comprising: at least one processor; as well as at least one memory storing instructions that, when executed by the at least one processor, cause the third device to at least: receiving, from a first device in the first subnet, a configuration for determining a first interference vector, wherein the first interference vector is associated with weighted inter-subnet interference between the first subnet and at least one second subnet of the radio access network, and the configuration indicates at least a first weighting for the weighted inter-subnet interference; as well as A first interference vector determined based on the configuration is sent to the first device.

17. The third device according to claim 16, wherein the configuration for determining the first interference vector comprises at least one of the following: a first measurement configuration for a reference signal of the first subnet; a second measurement configuration for a reference signal of the at least one second subnet, First configuration information associated with the first weighting.

18. The third device according to claim 17, wherein the third device is caused to: Based on the first measurement configuration and the second measurement configuration, interference measurement of reference signals of the first network and the at least one second subnet is performed.

19. The third device according to claim 18, wherein the third device is caused to: The first interference vector is determined based on a measurement result of the interference measurement and a first weighting factor for the first weighting.

20. The third device of claim 19, wherein the first weighting factor is a reciprocal of a measured received power of the reference signal of the first subnet.

21. The third device according to any one of claims 16 to 20, wherein the first device comprises an access point, and the third device comprises a terminal device.

22. A method comprising: At a first device in a first subnet of a radio access network, receiving, from a second device in the radio access network, a configuration for determining weighted inter-subnet interference between the first subnet and at least one second subnet of the radio access network, wherein the configuration indicates at least one of the following: a first weighting for the weighted inter-subnet interference, and a second weighting for the weighted inter-subnet interference; determining the weighted inter-subnet interference based at least on the configuration; as well as The weighted inter-subnet interference is sent to the second device for selecting at least one subband for the first subnet.

23. A method comprising: At a second device in a radio access network, sending a configuration for determining weighted inter-subnet interference between at least one subnet of the radio access network to at least one first device in at least one subnet of the radio access network, wherein the configuration indicates at least one of: a first weighting for the weighted inter-subnet interference, a second weighting for the weighted inter-subnet interference; and The weighted inter-subnet interference is received from the at least one first device for selecting at least one subband for the first subnet.

24. A method comprising: receiving, at a third device in a first subnet of a radio access network, a configuration for determining a first interference vector from a first device in the first subnet, wherein the first interference vector is associated with weighted inter-subnet interference between the first subnet and at least one second subnet of the radio access network, and the configuration indicates at least a first weighting for the weighted inter-subnet interference; as well as A first interference vector determined based on the configuration is sent to the first device.

25. An apparatus comprising: means for receiving, from a second device in a radio access network, a configuration for determining weighted inter-subnet interference between a first subnet of the radio access network and at least one second subnet of the radio access network, wherein the configuration indicates at least one of: a first weighting for the weighted inter-subnet interference, a second weighting for the weighted inter-subnet interference; means for determining said weighted inter-subnet interference based at least on said configuration; as well as means for sending the weighted inter-subnet interference to the second device, and for selecting at least one subband for the first subnet.

26. An apparatus comprising: means for sending, to at least one first device in at least one subnet of a radio access network, a configuration for determining weighted inter-subnet interference between the at least one subnet, wherein the configuration indicates at least one of: a first weighting for the weighted inter-subnet interference, a second weighting for the weighted inter-subnet interference; as well as means for receiving the weighted inter-subnet interference from the at least one first device, and for selecting at least one subband for the first subnet.

27. An apparatus comprising: means for receiving, from a first device in a first subnet of a radio access network, a configuration for determining a first interference vector, wherein the first interference vector is associated with weighted inter-subnet interference between the first subnet and at least one second subnet of the radio access network, and the configuration indicates at least a first weighting for the weighted inter-subnet interference; as well as Means for sending a first interference vector determined based on the configuration to the first device.

28. A non-transitory computer-readable medium comprising program instructions for causing an apparatus to at least perform the method of claim 22, the method of claim 23, or the method of claim 24.

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