WO2024152170A1 - Attribution de ressources pour sous-réseaux - Google Patents

Attribution de ressources pour sous-réseaux Download PDF

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Publication number
WO2024152170A1
WO2024152170A1 PCT/CN2023/072453 CN2023072453W WO2024152170A1 WO 2024152170 A1 WO2024152170 A1 WO 2024152170A1 CN 2023072453 W CN2023072453 W CN 2023072453W WO 2024152170 A1 WO2024152170 A1 WO 2024152170A1
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WIPO (PCT)
Prior art keywords
network
sub
resource allocation
network device
determining
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PCT/CN2023/072453
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English (en)
Inventor
Saeed Reza KHOSRAVIRAD
Dong Li
Original Assignee
Nokia Shanghai Bell Co., Ltd.
Nokia Solutions And Networks Oy
Nokia Technologies Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Nokia Shanghai Bell Co., Ltd., Nokia Solutions And Networks Oy, Nokia Technologies Oy filed Critical Nokia Shanghai Bell Co., Ltd.
Priority to PCT/CN2023/072453 priority Critical patent/WO2024152170A1/fr
Publication of WO2024152170A1 publication Critical patent/WO2024152170A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference

Definitions

  • Embodiments of the present disclosure generally relate to the field of telecommunication and in particular, to devices, methods, apparatus and computer readable storage media for resource allocation for sub-networks.
  • sub-networks have been introduced to meet the extreme performance requirements in terms of latency, reliability and/or throughput envisioned for certain short range scenarios.
  • the sub-networks are typically installed in specific entities e.g., in-vehicle, in-body, in-house to provide life-critical data service with extreme performances over the local capillary coverage.
  • 6G 6th generation
  • a network device for a radio access network.
  • the network device comprises at least one processor and at least one memory storing instructions.
  • the instructions are configured to, when executed by the at least one processor, cause the network device to: determine, from a plurality of sub-networks, at least one first sub-network and at least one second sub-network; obtain interference measurement information on the at least one first sub-network and the at least one second sub-network; determine a resource allocation for the at least one first sub-network based on the interference measurement information; determine, based at least on the resource allocation for the at least one first sub-network and the interference measurement information, assistance information for performing a resource allocation for the at least one second sub-network; and transmit the assistance information to an access point of the at least one second sub-network.
  • an access point (AP) of a sub-network associated with a radio access network comprises at least one processor and at least one memory storing instructions.
  • the instructions are configured to, when executed by the at least one processor, cause the AP to: receive, from a network device for the radio access network, assistance information for performing a resource allocation for the second sub-network; and determine at least one resource for operation by performing the resource allocation based at least on the assistance information.
  • a method comprises: determining, at a network device from a plurality of sub-networks, at least one first sub-network and at least one second sub-network; obtaining interference measurement information on the at least one first sub-network and the at least one second sub-network; determining a resource allocation for the at least one first sub-network based on the interference measurement information; determining, based at least on the resource allocation for the at least one first sub-network and the interference measurement information, assistance information for performing a resource allocation for the at least one second sub-network; and transmitting the assistance information to an access point of the at least one second sub-network.
  • a method comprises: receiving, at an access point of a second sub-network from a network device for a radio access network, assistance information for performing a resource allocation for the second sub-network, the second sub-network being associated with the radio access network; and determining at least one resource for operation by performing the resource allocation based at least on the assistance information.
  • an apparatus comprising: means for determining, at a network device for a radio access network from a plurality of sub-networks, at least one first sub-network and at least one second sub-network; means for obtaining interference measurement information on the at least one first sub-network and the at least one second sub-network; means for determining a resource allocation for the at least one first sub-network based on the interference measurement information; means for determining, based at least on the resource allocation for the at least one first sub-network and the interference measurement information, assistance information for performing a resource allocation for the at least one second sub-network; and means for transmitting the assistance information to an access point of the at least one second sub-network.
  • an apparatus comprising: means for receiving, at an access point of a second sub-network from a network device for a radio access network, assistance information for performing a resource allocation for the second sub-network, the second sub-network being associated with the radio access network; and means for determining at least one resource for operation by performing the resource allocation based at least on the assistance information.
  • a non-transitory computer readable medium comprising program instructions for causing an apparatus to perform at least the method according to any one of the above third or fourth aspect.
  • Fig. 2 illustrates a flowchart of a method implemented at a network device according to some example embodiments of the present disclosure
  • Fig. 3 illustrates a signaling chart illustrating an example process according to some example embodiments of the present disclosure
  • Fig. 4 illustrates an example of centralized resource allocation periods according to some example embodiments of the present disclosure
  • Fig. 5 shows a flowchart of an example method implemented at a network device according to some other example embodiments of the present disclosure
  • Fig. 6 illustrates an example of an interference measurement matrix (IMM) according to some example embodiments of the present disclosure
  • Fig. 7 illustrates an example of a process for determining a subband for a sub-network according to some example embodiments of the present disclosure
  • Fig. 8 illustrates a flowchart of a method implemented at an AP of a sub-network according to some example embodiments of the present disclosure
  • Fig. 9 illustrates a flowchart of a method implemented at an AP of a sub-network according to some other example embodiments of the present disclosure
  • Fig. 10 illustrates a simplified block diagram of an apparatus that is suitable for implementing embodiments of the present disclosure.
  • Fig. 11 illustrates a block diagram of an example computer readable medium in accordance with some example embodiments of the present disclosure.
  • references in the present disclosure to “one embodiment, ” “an embodiment, ” “an example embodiment, ” and the like indicate that the embodiment described may include a particular feature, structure, or characteristic, but it is not necessary that every embodiment includes the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to affect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
  • first and 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. For example, a first element could be termed a second element, and similarly, a second element could be termed a first element, without departing from the scope of example embodiments.
  • the term “and/or” includes any and all combinations of one or more of the listed terms.
  • circuitry may refer to one or more or all of the following:
  • circuitry also covers an implementation of merely a hardware circuit or processor (or multiple processors) or portion of a hardware circuit or processor and its (or their) accompanying software and/or firmware.
  • circuitry also covers, for example and if applicable to the particular claim element, a baseband integrated circuit or processor integrated circuit for a mobile device or a similar integrated circuit in server, a cellular network device, or other computing or network device.
  • the term “communication network” refers to a network following any suitable communication standards, such as Long Term Evolution (LTE) , LTE-Advanced (LTE-A) , Wideband Code Division Multiple Access (WCDMA) , High-Speed Packet Access (HSPA) , Narrow Band Internet of Things (NB-IoT) , Non-terrestrial network (NTN) and so on.
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • WCDMA Wideband Code Division Multiple Access
  • HSPA High-Speed Packet Access
  • NB-IoT Narrow Band Internet of Things
  • NTN Non-terrestrial network
  • the communications between a terminal device and a network device in the communication network may be performed according to any suitable generation communication protocols, including, but not limited to, the first generation (1G) , the second generation (2G) , 2.5G, 2.75G, the third generation (3G) , the fourth generation (4G) , 4.5G, the fifth generation (5G) communication protocols, the sixth generation (6G) communication protocols and/or any other protocols either currently known or to be developed in the future.
  • Embodiments of the present disclosure may be applied in various communication systems. Given the rapid development in communications, there will of course also be future type communication technologies and systems with which the present disclosure may be embodied. It should not be seen as limiting the scope of the present disclosure to only the aforementioned system.
  • the term “network device” refers to a node in a communication network via which a terminal device accesses the network and receives services therefrom.
  • the network device may refer to a base station (BS) , for example, a node B (NodeB or NB) , an evolved NodeB (eNodeB or eNB) , a NR NB (also referred to as a gNB) , a Remote Radio Unit (RRU) , a radio header (RH) , a remote radio head (RRH) , a relay, a low power node such as a femto, a pico, a non-terrestrial network (NTN) or non-ground network device such as a satellite network device, a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite and a geosynchronous earth orbit (GEO) satellite, an aircraft network device, and so forth, depending on the applied terminology and technology.
  • BS base station
  • terminal device refers to any end device that may be capable of wireless communication.
  • a terminal device may also be referred to as a communication device, user equipment (UE) , a Subscriber Station (SS) , a Portable Subscriber Station, a Mobile Station (MS) , or an Access Terminal (AT) .
  • UE user equipment
  • SS Subscriber Station
  • MS Mobile Station
  • AT Access Terminal
  • the terminal device may include, but not limited to, a mobile phone, a cellular phone, a smart phone, voice over IP (VoIP) phones, wireless local loop phones, a tablet, a wearable terminal device, a personal digital assistant (PDA) , portable computers, desktop computer, image capture terminal devices such as digital cameras, gaming terminal devices, music storage and playback appliances, vehicle-mounted wireless terminal devices, wireless endpoints, mobile stations, laptop-embedded equipment (LEE) , laptop-mounted equipment (LME) , USB dongles, smart devices, wireless customer-premises equipment (CPE) , an Internet of Things (IoT) device, a watch or other wearable, a head-mounted display (HMD) , a vehicle, a drone, a medical device and applications (e.g., remote surgery) , an industrial device and applications (e.g., a robot and/or other wireless devices operating in an industrial and/or an automated processing chain contexts) , a consumer electronics device, a device operating on commercial and/
  • the term “AP” refers to a device serving and managing a sub-network.
  • the AP may be connected to a network device for a radio access network and provides a wireless access service for terminal devices within a coverage of the AP.
  • a resource allocation for a sub-network is determined or performed by a network device (such as a base station (BS) ) , the resource allocation is referred to as a centralized resource allocation.
  • a resource allocation for a sub-network is performed by the sub-network itself, the resource allocation is referred to as a distributed resource allocation.
  • the architectural property of sub-networks allows for centralized resource allocation by an overlay BS for the sub-networks with extreme requirements.
  • the overlay BS may have a full picture of interference situations among the sub-networks.
  • the centralized resource allocation can result in a large overhead as the network size grows and reduces flexibility and re-use of resources.
  • Fully centralized resource allocation schemes also will require a great amount of signaling to be able to adapt to the dynamics of the environment and relative location of sub-networks, which causes a large resource utilization overhead.
  • a network device for a radio access network determines, from a plurality of sub-networks, at least one first sub-network and at least one second sub-network.
  • the network device obtains interference measurement information on the at least one first sub-network and the at least one second sub-network.
  • the network device determines a resource allocation for the at least one first sub-network based on the interference measurement information.
  • the network device determines, based at least on the resource allocation for the at least one first sub-network and the interference measurement information, assistance information for performing a resource allocation for the at least one second sub-network.
  • the network device transmits the assistance information to an access point of the at least one second sub-network.
  • the resource to be allocated to a first or second sub-network may be a subband of a frequency carrier, a frequency hopping pattern, a spreading code and so on.
  • the distributed resource allocation in this solution blends well with centralized resource allocation by accounting for the centralized resource allocation when determining the assistance information for the distributed allocation.
  • Fig. 1 illustrates an example of a network environment 100 in which example embodiments of the present disclosure may be implemented.
  • the network environment 100 may comprise a network device 110 as well as sub-networks 120, 130, 140 and 150.
  • the sub-network 120 may comprise an access point (AP) 121 and one or more terminal devices that communicate with the AP 121.
  • the sub-network 130 may comprise an AP 131 and one or more terminal devices that communicate with the AP 131.
  • the sub-network 140 may comprise an AP 141 and one or more terminal devices that communicate with the AP 141.
  • the sub-network 150 may comprise an AP 151 and one or more terminal devices that communicate with the AP 151.
  • the terminal devices in each of the sub-networks 120, 130, 140 and 150 communicate with the network device 110 via a respective access point.
  • the network environment 100 may include any suitable number of network devices, sub-networks, APs and terminal devices adapted for implementing embodiments of the present disclosure.
  • Communications in the network environment 100 may be implemented according to any proper communication protocol (s) , comprising, but not limited to, the third generation (3G) , the fourth generation (4G) , the fifth generation (5G) and the sixth generation (6G) or beyond, wireless local network communication protocols such as Institute for Electrical and Electronics Engineers (IEEE) 802.11 and the like, and/or any other protocols currently known or to be developed in the future.
  • s any proper communication protocol
  • 3G third generation
  • 4G fourth generation
  • 5G Fifth generation
  • 6G sixth generation
  • IEEE Institute for Electrical and Electronics Engineers
  • the subnetworks 120 to 150 may be envisioned as an important and new network architecture paradigm for certain 6G short-range scenarios with extreme high reliability and low latency requirements.
  • the subnetworks 120 to 150 may be installed in in-vehicle, in-body, or in-house.
  • the subnetworks 120 to 150 may have the following pivotal properties and technical features:
  • Fig. 2 shows a flowchart of an example method 200 implemented at a network device in accordance with some example embodiments of the present disclosure. For the purpose of discussion, the method 200 will be described from the perspective of the network device 110 with respect to Fig. 1.
  • the network device 110 determines, from a plurality of sub-networks, at least one first sub-network and at least one second sub-network.
  • the network device 110 obtains interference measurement information on the at least one first sub-network and the at least one second sub-network.
  • the network device 110 determines a resource allocation for the at least one first sub-network based on the interference measurement information.
  • the network device 110 determines, based at least on the resource allocation for the at least one first sub-network and the interference measurement information, assistance information for performing a resource allocation for the at least one second sub-network.
  • the network device 110 transmits the assistance information to an access point of the at least one second sub-network.
  • the method 200 enables the overlay network device to keep a balance between a resource allocation for the at least one first sub-network and a resource allocation for the at least one second sub-network to avoid large overhead of signaling and low flexibility of switching among resources.
  • the method 200 allows dynamic sub-networks with critical traffic (e.g., in-robot, or in-vehicle) to swiftly switch among resources while benefiting from the central interference measurement consolidation.
  • critical traffic e.g., in-robot, or in-vehicle
  • the resource allocation for the at least one second sub-network in the method 200 blends well with the resource allocation for the at least one first sub-network by accounting for the resource allocation for the at least one first sub-network when determining the assistance information for performing the resource allocation for the at least one second sub-network.
  • the method 200 may improve the service performance metrics offered by centralized allocation scheme by reducing the chance of interference from sub-networks performing the resource allocation for the at least one second sub-network as well as interference among the sub-networks performing the resource allocation for the at least one second sub-network.
  • Fig. 3 illustrates a signaling chart illustrating a process 300 for resource allocation for sub-networks in accordance with some example embodiments of the present disclosure.
  • the process 300 will be described with reference to Fig. 1.
  • the process 300 may involve the network device 110, the AP 121 of the sub-network 120 and the AP 131 of the sub-network 130 in Fig. 1.
  • the network device 110 determines 320, from the sub-networks 120 to 150, at least one first sub-network and at least one second sub-network.
  • the network device 110 may determine the at least one first sub-network and the at least one second sub-network based on service requirements of the sub-networks 120 to 150.
  • service requirements may include but are not limited to traffic Quality of Service (QoS) , reliability and mobility of the sub-networks 120 to 150.
  • QoS traffic Quality of Service
  • a specified or pre-configured look-up table may define mapping between the service requirement and a category of resource allocation of a sub-network.
  • the category of resource allocation comprises at least one of the resource allocation for the at least one first sub-network or the resource allocation for the at least one second sub-network.
  • the look-up table may be used to determine one of the subnetworks 120 to 150 to be a first sub-network or second sub-network depending on the type of services supported by them.
  • the look-up table may associate a subnetwork with extreme requirements such as high reliability (which requires more careful resource allocation to avoid impact of interference) to a first sub-network. Moreover, the look-up table may associate a subnetwork with less critical traffic to a second sub-network.
  • the less critical traffic may include but is not limited to NB-IoT or enhanced mobile broadband (eMBB) traffic.
  • a subnetwork may be determined to be a second sub-network to allow for flexibility and higher frequency of subband switches.
  • a subnetwork with high mobility in-vehicle or in-robot
  • the subnetwork may be determined to be a second sub-network. Therefore, the look-up table may associate a subnetwork to a first sub-network or second sub-network based on the mobility level, such as average velocity.
  • the network device 110 may determine the at least one first sub-network and the at least one second sub-network based on resource allocation preference signals from APs of the sub-networks 120 to 150. In other words, the network device 110 may determine a sub-network to be a first sub-network and/or a second sub-network based on an explicit request from an AP of the sub-network. For example, the network device 110 may receive 310 a resource allocation preference signal from the AP 131 of the sub-networks 130. The network device 110 may receive 315 a resource allocation preference signal from the AP 121 of the sub-networks 120.
  • each of the resource allocation preference signals may indicate at least one of the following:
  • the category of resource allocation comprising at least one of the resource allocation for the at least one first sub-network or the resource allocation for the at least one second sub-network.
  • the AP of one of the sub-networks 120 and 130 may request to be both a first sub-network and a second sub-network.
  • the subnetwork 120 serving two service classes may choose to operate for critical services on a resource which is centrally allocated by the network device 110 while for the other services it uses a resource which is selected by the subnetwork 120 based on the assistance information received from the network device 110.
  • the network device 110 may notify an AP of the sub-network of the category of resource allocation of the sub-network. For example, if the sub-network 130 is determined to be a first sub-network, the network device 110 may notify 330 the AP 131 of the sub-network 130 that the category of resource allocation of the sub-network 130 is the resource allocation for the at least one first sub-network.
  • the network device 110 may notify 335 the AP 121 of the sub-network 120 that the category of resource allocation of the sub-network 120 is the resource allocation for the at least one second sub-network.
  • the network device 110 obtains 340 interference measurement information on the at least one first sub-network and the at least one second sub-network.
  • the interference measurement information may comprise inter-sub-network interference measurement information.
  • the network device 110 may transmit configuration message for the interference measurement information to the terminal devices via dedicated signaling and/or signaling in groupcast manner.
  • the terminal devices may make the interference measurements and transmit the interference measurement information to the network device 110 through the respective APs.
  • the AP 121 of the sub-network 120 determines 370 at least one resource for operation by performing the resource allocation for the at least one second sub-network based at least on the assistance information.
  • the process 300 may improve the service performance metrics offered by centralized allocation scheme by reducing the chance of interference from sub-networks performing resource allocation for the at least one second sub-network as well as interference among the sub-networks performing the resource allocation for the at least one second sub-network.
  • the resource allocation for the at least one first sub-network is also referred to as a centralized resource allocation.
  • each of the at least one first sub-network is also referred to as a centralized controlled sub-network (CCS) .
  • CCS centralized controlled sub-network
  • the resource allocation for the at least one second sub-network is also referred to as a distributed resource allocation.
  • each of the at least one second sub-network is also referred to as a distributed controlled sub-network (DCS) .
  • DCS distributed controlled sub-network
  • the actual distributed resource allocation by the DCS may be not limited by the time window of the centralized resource allocation periods.
  • a time pattern for performing the resource allocation for the at least one second sub-network i.e., the distributed resource allocation
  • the time pattern for performing the distributed resource allocation may be preconfigured or explicitly signaled to the DCSs by the network device 110.
  • the time pattern for performing the distributed resource allocation is also referred to as a switching frequency at which the switching of the resource between candidate resources is performed for a DCS.
  • the time pattern for performing the distributed resource allocation may be one of three categories of time patterns for performing the distributed resource allocation:
  • Fig. 5 shows a flowchart of an example method 500 implemented at a network device in accordance with some example embodiments of the present disclosure.
  • the method 500 may be considered as an example implementation of the method 200.
  • the method 500 will be described from the perspective of the network device 110 with respect to Fig. 1.
  • the network device 110 generates an interference measurement matrix (IMM) based on the interference measurement information on the at least one first sub-network and the at least one second sub-network.
  • IMM interference measurement matrix
  • the network device 110 determines the resource allocation for the at least one first sub-network based on the IMM.
  • the network device 110 Based on the interference measurements, the network device 110 generates IMM for subband 1 (SB1) and subband 2 (SB2) as shown in Fig. 6.
  • SIMM subband 1
  • SB2 subband 2
  • the IMM may be generated separately per subband.
  • Values in the IMM represents the interference level with the rows and columns corresponding to the interfered sub-networks and interfering sub-networks, respectively. It shall be noted that the IMM in Fig. 6 is symmetric, but it may also be asymmetric.
  • the network device 110 determines the subband allocation for the CCSs 130 and 140.
  • step 720 the network device 110 updates the IMM for the DCSs according to the subband allocation for the CCSs 130 and 140.
  • the network device 110 determines a subband priority associated with each subband for each DCS.
  • the subband priority may be taken from a pre-configured look-up table. For example, if a DCS causes a high level of interference in a specific subband towards the CCSs which are allocated that subband, the DCS may get a lower subband priority and vice versa. A smallest subband priority (for example, 0) disallows the DCS to use the subband.
  • the assistance information for the distributed resource allocation may comprise the subband priority.
  • the network device 110 may determine the switching frequency for each DCS.
  • the switching frequency may be determined separately for each DCS, or for each DCS and each subband.
  • the switching frequency may limit the frequency of switching between subbands for the DCSs. For example, a DCS that interferes strongly with a critical CCS (meaning they are in close vicinity) can be given a lower switching frequency to minimize chances of interfering with that CCS after centralized subband allocation in step 710.
  • optimization of determining the subband allocation for CCSs, determining the subband priority and determining the switching frequency may be done in a joint optimization process, targeting jointly the minimization of random interference for CCSs and DCSs, given the subband priority and the switching frequency. That is, the optimization may be based on the following:
  • the weighted sum of interference for all the CCSs and DCSs may be represented as: ⁇ i ⁇ subnetwork indexes w i I i (2)
  • the maximum of interference for all the CCSs and DCSs then may be represented as: max ⁇ w i I i ⁇ (3)
  • optimization of determining the subband priority for a DCS may be based on the weighted likelihood of interference from other DCSs using the same subband. For example, when prioritizing the SB2 at 0.6 for the SN 120 in Fig. 7, it is done by jointly considering the 0.3 likelihood that the SN 150 uses the SB2 and causes interference level 1 towards the SN 120 as shown in Fig. 7, and vice versa.
  • Fig. 8 shows a flowchart of an example method 800 implemented at an AP of a sub-network in accordance with some example embodiments of the present disclosure.
  • the method 800 will be described from the perspective of the AP 121 of the sub-network 120 with respect to Fig. 1.
  • the AP 121 determines at least one resource for operation by performing the resource allocation based at least on the assistance information.
  • the method 800 further comprises transmitting a resource allocation preference signal to the network device.
  • the resource allocation preference signal causes the network device to determine the second sub-network from a plurality of sub-networks.
  • the assistance information comprises at least one of the following: a priority associated with each of candidate resources for the second sub-network, or a time pattern for performing the resource allocation for the second sub-network.
  • the AP 121 may determine a subset of the candidate resources based on the priority. In turn, the AP 121 may determine the at least one resource from the subset of the candidate resources based at least on the priority.
  • the AP 121 may determine the at least one resource based on the priority and a traffic arrival pattern. For example, the AP 121 may determine a subband with a high priority for periodic and critical traffic while determining a subband with a lower priority for non-critical and intermittent low-rate traffic.
  • the AP 121 may determine the at least one resource based on the priority and instantaneous interference measurements from carrier sensing. This will be described with reference to Fig. 9.
  • Fig. 9 shows a flowchart of an example method 900 implemented at an AP of a sub-network in accordance with some example embodiments of the present disclosure.
  • the method 900 may be considered as an example implementation of the method 800.
  • the method 900 will be described from the perspective of the AP 121 of the sub-network 120 with respect to Fig. 1.
  • the AP 121 resets a counter.
  • the AP 121 increases a value of the counter by 1.
  • the AP 121 determines whether the value of the counter is equal to greater than 1/switching frequency. For example, if the switching frequency is equal to 1/5, it refers to one switching in every 5 time slots. Therefore, the sub-network 120 is allowed to switch only if the value of the counter since the last reset has reached 5 or greater. The determination whether the value of the counter is equal to greater than (i.e., 5) is to check for this condition.
  • the method 900 proceeds to block 940.
  • the AP 121 collects instantaneous interference measurements from carrier sensing.
  • the method 900 proceeds to block 920.
  • the AP 121 determines whether the interference metric from the instantaneous interference measurement changed since last instantaneous interference measurement.
  • the method 900 proceeds to block 960.
  • the AP 121 creates a composite subband selection metric using the changed instantaneous interference measurement and the subband priority.
  • the method 900 proceeds to block 920.
  • the AP 121 determines whether there is a new best subband to switch to.
  • the method 900 proceeds to block 980.
  • the AP 121 sends a subband switch signal to terminal devices in the sub-network 120 and switches to the new subband.
  • the AP 121 Upon switching to the new subband, the AP 121 resets the counter at block 910.
  • the method 900 proceeds to block 920.
  • an apparatus capable of performing any of the method 200 may comprise means for performing the respective operations of the method 200.
  • the means may be implemented in any suitable form.
  • the means may be implemented in a circuitry or software module.
  • the apparatus may be implemented as or included in the network device 110.
  • the means may comprise a processor and a memory.
  • the apparatus comprises: means for determining, at a network device for a radio access network from a plurality of sub-networks, at least one first sub-network and at least one second sub-network; means for obtaining interference measurement information on the at least one first sub-network and the at least one second sub-network; means for determining a resource allocation for the at least one first sub-network based on the interference measurement information; means for determining, based at least on the resource allocation for the at least one first sub-network and the interference measurement information, assistance information for performing a resource allocation for the at least one second sub-network; and means for transmitting the assistance information to an access point of the at least one second sub-network.
  • the means for determining the at least one first sub-network and the at least one second sub-network comprises means for determining the at least one first sub-network and the at least one second sub-network based on at least one of the following: service requirements of the plurality of sub-networks, or resource allocation preference signals from access points of the plurality of sub-networks.
  • each of the resource allocation preference signals indicates at least one of the following: a bandwidth required by one of the plurality of sub-networks, or a category of resource allocation comprising at least one of the resource allocation for the first sub-network or the resource allocation for the second sub-network.
  • the assistance information for performing the resource allocation for the at least one second sub-network comprises at least one of the following: a priority associated with each of candidate resources for the at least one second sub-network, or a time pattern for performing the resource allocation for the at least one second sub-network.
  • the means for determining the resource allocation for the at least one first sub-network comprises: means for generating an interference measurement matrix (IMM) based on the interference measurement information; and means for determining the resource allocation for the at least one first sub-network based on the IMM.
  • the means for determining the assistance information for performing the resource allocation for the at least one second sub-network comprises: means for determining an updated IMM based on the resource allocation for the at least one first sub-network; means for determining the priority based on the updated IMM; and means for determining the time pattern based on the updated IMM and Quality of Service requirement of the at least one second sub-network.
  • the at least one first sub-network comprises a centralized controlled sub-network
  • the at least one second sub-network comprises a distributed controlled sub-network
  • an apparatus capable of performing any of the method 800 may comprise means for performing the respective operations of the method 800.
  • the means may be implemented in any suitable form.
  • the means may be implemented in a circuitry or software module.
  • the apparatus may be implemented as or included in the AP 121.
  • the means may comprise a processor and a memory.
  • the apparatus comprises: means for receiving, at an AP of a second sub-network from a network device for a radio access network, assistance information for performing a resource allocation for the second sub-network, the second sub-network being associated with the radio access network; and means for determining at least one resource for operation by performing the resource allocation based at least on the assistance information.
  • the apparatus further comprises: means for transmitting a resource allocation preference signal to the network device, the resource allocation preference signal causing the network device to determine the second sub-network from a plurality of sub-networks.
  • the resource allocation preference signal indicates at least one of the following: a bandwidth required by the second sub-network, or a category of resource allocation comprising at least one of a resource allocation for a first sub-network or a resource allocation for the second sub-network.
  • the first sub-network comprises a centralized controlled sub-network
  • the second sub-network comprises a distributed controlled sub-network
  • the assistance information comprises at least one of the following: a priority associated with each of candidate resources for the second sub-network, or a time pattern for performing the resource allocation for the second sub-network.
  • the means for determining the at least one resource for operation comprises: means for determining a subset of the candidate resources based on the priority; and means for determining the at least one resource from the subset of the candidate resources based at least on the priority.
  • the means for determining the at least one resource from the subset of the candidate resources based at least on the priority comprises: means for determining the at least one resource based on the priority and at least one of the following: instantaneous interference measurements from carrier sensing, or a traffic arrival pattern.
  • the means for determining the at least one resource for operation comprises means for performing the resource allocation based on the time pattern.
  • Fig. 10 is a simplified block diagram of a device 1000 that is suitable for implementing example embodiments of the present disclosure.
  • the device 1000 may be provided to implement a communication device, for example, the network device 110 or one of the AP 121, 131, 141 and 151 as shown in Fig. 1.
  • the device 1000 includes one or more processors 1010, one or more memories 1020 coupled to the processor 1010, and one or more communication modules 1040 coupled to the processor 1010.
  • the communication module 1040 is for bidirectional communications.
  • the communication module 1040 has one or more communication interfaces to facilitate communication with one or more other modules or devices.
  • the communication interfaces may represent any interface that is necessary for communication with other network elements.
  • the communication module 1040 may include at least one antenna.
  • the processor 1010 may be of any type suitable to the local technical network and may include one or more of the following: general purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs) and processors based on multicore processor architecture, as non-limiting examples.
  • the device 1000 may have multiple processors, such as an application specific integrated circuit chip that is slaved in time to a clock which synchronizes the main processor.
  • the memory 1020 may include one or more non-volatile memories and one or more volatile memories.
  • the non-volatile memories include, but are not limited to, a Read Only Memory (ROM) 1024, an electrically programmable read only memory (EPROM) , a flash memory, a hard disk, a compact disc (CD) , a digital video disk (DVD) , an optical disk, a laser disk, and other magnetic storage and/or optical storage.
  • ROM Read Only Memory
  • EPROM electrically programmable read only memory
  • flash memory a hard disk
  • CD compact disc
  • DVD digital video disk
  • optical disk a laser disk
  • RAM random access memory
  • a computer program 1030 includes computer executable instructions that could be executed by the associated processor 1010.
  • the program 1030 may be stored in the memory, e.g., ROM 1024.
  • the processor 1010 may perform any suitable actions and processing by loading the program 1030 into the RAM 1022.
  • the example embodiments of the present disclosure may be implemented by means of the program 1030 so that the device 1000 may perform any process of the disclosure as discussed with reference to Figs. 1 to 9.
  • the example embodiments of the present disclosure may also be implemented by hardware or by a combination of software and hardware.
  • the program 1030 may be tangibly contained in a computer readable medium which may be included in the device 1000 (such as in the memory 1020) or other storage devices that are accessible by the device 1000.
  • the device 1000 may load the program 1030 from the computer readable medium to the RAM 1022 for execution.
  • the computer readable medium may include any types of tangible non-volatile storage, such as ROM, EPROM, a flash memory, a hard disk, CD, DVD, and the like.
  • Fig. 11 shows an example of the computer readable medium 1100 which may be in form of CD, DVD or other optical storage disk.
  • the computer readable medium has the program 1030 stored thereon.
  • various embodiments of the present disclosure may be implemented in hardware or special purpose circuits, software, logic or any combination thereof. Some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software which may be executed by a controller, microprocessor or other computing device. While various aspects of embodiments of the present disclosure are illustrated and described as block diagrams, flowcharts, or using some other pictorial representations, it is to be understood that the block, apparatus, system, technique or method described herein may be implemented in, as non-limiting examples, hardware, software, firmware, special purpose circuits or logic, general purpose hardware or controller or other computing devices, or some combination thereof.
  • the present disclosure also provides at least one computer program product tangibly stored on a non-transitory computer readable storage medium.
  • the computer program product includes computer-executable instructions, such as those included in program modules, being executed in a device on a target physical or virtual processor, to carry out any of the methods as described above with reference to Figs. 1 to 9.
  • program modules include routines, programs, libraries, objects, classes, components, data structures, or the like that perform particular tasks or implement particular abstract data types.
  • the functionality of the program modules may be combined or split between program modules as desired in various embodiments.
  • Machine-executable instructions for program modules may be executed within a local or distributed device. In a distributed device, program modules may be located in both local and remote storage media.
  • Program code for carrying out methods of the present disclosure may be written in any combination of one or more programming languages. These program codes may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the program codes, when executed by the processor or controller, cause the functions/operations specified in the flowcharts and/or block diagrams to be implemented.
  • the program code may execute entirely on a machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.
  • the computer program code or related data may be carried by any suitable carrier to enable the device, apparatus or processor to perform various processes and operations as described above.
  • Examples of the carrier include a signal, computer readable medium, and the like.
  • the computer readable medium may be a computer readable signal medium or a computer readable storage medium.
  • a computer readable medium may include but not limited to an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of the computer readable storage medium would include an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM) , a read-only memory (ROM) , an erasable programmable read-only memory (EPROM or Flash memory) , an optical fiber, a portable compact disc read-only memory (CD-ROM) , an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

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  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Selon des modes de réalisation, la présente divulgation concerne des dispositifs, des procédés, des appareils et des supports de stockage lisibles par ordinateur destinés à une attribution de ressources pour des sous-réseaux Le dispositif de réseau pour un réseau d'accès radio détermine, à partir d'une pluralité de sous-réseaux, au moins un premier sous-réseau et au moins un second sous-réseau. Le dispositif de réseau obtient des informations de mesure d'interférence sur le ou les premiers sous-réseaux et le ou les seconds sous-réseaux. Le dispositif de réseau détermine une attribution de ressources pour le ou les premiers sous-réseaux sur la base des informations de mesure d'interférence. Le dispositif de réseau détermine, sur la base au moins de l'attribution de ressources pour le ou les premiers sous-réseaux et les informations de mesure d'interférence, des informations d'assistance pour effectuer une attribution de ressources pour le ou les seconds sous-réseaux. A son tour, le dispositif de réseau transmet les informations d'assistance à un point d'accès du ou des seconds sous-réseaux.
PCT/CN2023/072453 2023-01-16 2023-01-16 Attribution de ressources pour sous-réseaux WO2024152170A1 (fr)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160081114A1 (en) * 2014-09-12 2016-03-17 Samsung Electronics Co., Ltd. Method and apparatus for operating resource in wireless communication system
US20180242325A1 (en) * 2017-02-21 2018-08-23 Northwestern University Radio resource management in large wireless networks
CN111543110A (zh) * 2017-11-02 2020-08-14 阿里斯企业有限责任公司 多ap环境中的经协调的频率使用
CN114451006A (zh) * 2019-10-03 2022-05-06 华为技术有限公司 一种无线资源分配策略的配置方法、装置及系统

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160081114A1 (en) * 2014-09-12 2016-03-17 Samsung Electronics Co., Ltd. Method and apparatus for operating resource in wireless communication system
US20180242325A1 (en) * 2017-02-21 2018-08-23 Northwestern University Radio resource management in large wireless networks
CN111543110A (zh) * 2017-11-02 2020-08-14 阿里斯企业有限责任公司 多ap环境中的经协调的频率使用
CN114451006A (zh) * 2019-10-03 2022-05-06 华为技术有限公司 一种无线资源分配策略的配置方法、装置及系统

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