WO2022000224A1 - Gestion de bande passante sensible au backhaul - Google Patents

Gestion de bande passante sensible au backhaul Download PDF

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Publication number
WO2022000224A1
WO2022000224A1 PCT/CN2020/099109 CN2020099109W WO2022000224A1 WO 2022000224 A1 WO2022000224 A1 WO 2022000224A1 CN 2020099109 W CN2020099109 W CN 2020099109W WO 2022000224 A1 WO2022000224 A1 WO 2022000224A1
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WO
WIPO (PCT)
Prior art keywords
base station
data rate
backhaul
operating bandwidth
core network
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Application number
PCT/CN2020/099109
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English (en)
Inventor
Li Tan
Chaofeng HUI
Meng Liu
Ying Wang
Xuesong Chen
Haichao SONG
Liang Xue
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Qualcomm Incorporated
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Application filed by Qualcomm Incorporated filed Critical Qualcomm Incorporated
Priority to PCT/CN2020/099109 priority Critical patent/WO2022000224A1/fr
Publication of WO2022000224A1 publication Critical patent/WO2022000224A1/fr

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    • 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]
    • H04W28/18—Negotiating wireless communication parameters
    • H04W28/20—Negotiating bandwidth

Definitions

  • aspects of the present disclosure generally relate to wireless communication and to techniques and apparatuses for backhaul aware bandwidth management.
  • Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasts.
  • Typical wireless communication systems may employ multiple-access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, and/or the like) .
  • multiple-access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency-division multiple access (FDMA) systems, orthogonal frequency-division multiple access (OFDMA) systems, single-carrier frequency-division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and Long Term Evolution (LTE) .
  • LTE/LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP) .
  • UMTS Universal Mobile Telecommunications System
  • a wireless network may include a number of base stations (BSs) that can support communication for a number of user equipment (UEs) .
  • a user equipment (UE) may communicate with a base station (BS) via the downlink and uplink.
  • the downlink (or forward link) refers to the communication link from the BS to the UE
  • the uplink (or reverse link) refers to the communication link from the UE to the BS.
  • a BS may be referred to as a Node B, a gNB, an access point (AP) , a radio head, a transmit receive point (TRP) , a New Radio (NR) BS, a 5G Node B, and/or the like.
  • New Radio which may also be referred to as 5G, is a set of enhancements to the LTE mobile standard promulgated by the Third Generation Partnership Project (3GPP) .
  • 3GPP Third Generation Partnership Project
  • NR is designed to better support mobile broadband Internet access by improving spectral efficiency, lowering costs, improving services, making use of new spectrum, and better integrating with other open standards using orthogonal frequency division multiplexing (OFDM) with a cyclic prefix (CP) (CP-OFDM) on the downlink (DL) , using CP-OFDM and/or SC-FDM (e.g., also known as discrete Fourier transform spread OFDM (DFT-s-OFDM) ) on the uplink (UL) , as well as supporting beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation.
  • OFDM orthogonal frequency division multiplexing
  • SC-FDM e.g., also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)
  • DFT-s-OFDM discrete Fourier transform spread OFDM
  • MIMO multiple-input multiple-output
  • a method of wireless communication performed by a base station includes: determining a backhaul data rate of a backhaul link between the base station and a core network; and communicating, with one or more user equipment (UEs) , using an operating bandwidth that is based at least in part on the backhaul data rate.
  • UEs user equipment
  • a method of wireless communication performed by a UE includes: receiving, from a base station, an indication of an operating bandwidth that is based at least in part on a backhaul data rate of a backhaul link between the base station and a core network; and communicating, with the base station, using the operating bandwidth.
  • a base station for wireless communication includes: a memory; and one or more processors operatively coupled to the memory, the memory and the one or more processors configured to: determine a backhaul data rate of a backhaul link between the base station and a core network; and communicate, with one or more UEs, using an operating bandwidth that is based at least in part on the backhaul data rate.
  • a UE for wireless communication includes: a memory; and one or more processors operatively coupled to the memory, the memory and the one or more processors configured to: receive, from a base station, an indication of an operating bandwidth that is based at least in part on a backhaul data rate of a backhaul link between the base station and a core network; and communicate, with the base station, using the operating bandwidth.
  • a non-transitory computer-readable medium storing one or more instructions for wireless communication includes: one or more instructions that, when executed by one or more processors of a base station, cause the one or more processors to: determine a backhaul data rate of a backhaul link between the base station and a core network; and communicate, with one or more UEs, using an operating bandwidth that is based at least in part on the backhaul data rate.
  • a non-transitory computer-readable medium storing one or more instructions for wireless communication includes: one or more instructions that, when executed by one or more processors of a UE, cause the one or more processors to: receive, from a base station, an indication of an operating bandwidth that is based at least in part on a backhaul data rate of a backhaul link between the base station and a core network; and communicate, with the base station, using the operating bandwidth.
  • an apparatus for wireless communication includes: means for determining a backhaul data rate of a backhaul link between the apparatus and a core network; and means for communicating, with one or more UEs, using an operating bandwidth that is based at least in part on the backhaul data rate.
  • an apparatus for wireless communication includes: means for receiving, from a base station, an indication of an operating bandwidth that is based at least in part on a backhaul data rate of a backhaul link between the base station and a core network; and means for communicating, with the base station, using the operating bandwidth.
  • aspects generally include a method, apparatus, system, computer program product, non-transitory computer-readable medium, user equipment, base station, wireless communication device, and/or processing system as substantially described herein with reference to and as illustrated by the drawings and specification.
  • Fig. 1 is a diagram illustrating an example of a wireless network, in accordance with various aspects of the present disclosure.
  • Fig. 2 is a diagram illustrating an example of a base station in communication with a UE in a wireless network, in accordance with various aspects of the present disclosure.
  • Fig. 3 is a diagram illustrating an example associated with backhaul aware bandwidth management, in accordance with various aspects of the present disclosure.
  • Figs. 4-5 are diagrams illustrating example processes associated with backhaul aware bandwidth management, in accordance with various aspects of the present disclosure.
  • FIGs. 6-7 are block diagrams of example apparatuses for wireless communication, in accordance with various aspects of the present disclosure.
  • aspects may be described herein using terminology commonly associated with a 5G or NR radio access technology (RAT) , aspects of the present disclosure can be applied to other RATs, such as a 3G RAT, a 4G RAT, and/or a RAT subsequent to 5G (e.g., 6G) .
  • RAT radio access technology
  • Fig. 1 is a diagram illustrating an example of a wireless network 100, in accordance with various aspects of the present disclosure.
  • the wireless network 100 may be or may include elements of a 5G (NR) network, an LTE network, and/or the like.
  • the wireless network 100 may include a number of base stations 110 (shown as BS 110a, BS 110b, BS 110c, and BS 110d) and other network entities.
  • a base station (BS) is an entity that communicates with user equipment (UEs) and may also be referred to as an NR BS, a Node B, a gNB, a 5G node B (NB) , an access point, a transmit receive point (TRP) , and/or the like.
  • Each BS may provide communication coverage for a particular geographic area.
  • the term “cell” can refer to a coverage area of a BS and/or a BS subsystem serving this coverage area, depending on the context in which the term is used.
  • a BS may provide communication coverage for a macro cell, a pico cell, a femto cell, and/or another type of cell.
  • a macro cell may cover a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs with service subscription.
  • a pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs with service subscription.
  • a femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by UEs having association with the femto cell (e.g., UEs in a closed subscriber group (CSG) ) .
  • a BS for a macro cell may be referred to as a macro BS.
  • a BS for a pico cell may be referred to as a pico BS.
  • a BS for a femto cell may be referred to as a femto BS or a home BS.
  • a BS 110a may be a macro BS for a macro cell 102a
  • a BS 110b may be a pico BS for a pico cell 102b
  • a BS 110c may be a femto BS for a femto cell 102c.
  • a BS may support one or multiple (e.g., three) cells.
  • eNB base station
  • NR BS NR BS
  • gNB gNode B
  • AP AP
  • node B node B
  • 5G NB 5G NB
  • cell may be used interchangeably herein.
  • a cell may not necessarily be stationary, and the geographic area of the cell may move according to the location of a mobile BS.
  • the BSs may be interconnected to one another and/or to one or more other BSs or network nodes (not shown) in the wireless network 100 through various types of backhaul interfaces such as a direct physical connection, a virtual network, and/or the like using any suitable transport network.
  • Wireless network 100 may also include relay stations.
  • a relay station is an entity that can receive a transmission of data from an upstream station (e.g., a BS or a UE) and send a transmission of the data to a downstream station (e.g., a UE or a BS) .
  • a relay station may also be a UE that can relay transmissions for other UEs.
  • a relay BS 110d may communicate with macro BS 110a and a UE 120d in order to facilitate communication between BS 110a and UE 120d.
  • a relay BS may also be referred to as a relay station, a relay base station, a relay, and/or the like.
  • Wireless network 100 may be a heterogeneous network that includes BSs of different types, e.g., macro BSs, pico BSs, femto BSs, relay BSs, and/or the like. These different types of BSs may have different transmit power levels, different coverage areas, and different impacts on interference in wireless network 100.
  • macro BSs may have a high transmit power level (e.g., 5 to 40 watts) whereas pico BSs, femto BSs, and relay BSs may have lower transmit power levels (e.g., 0.1 to 2 watts) .
  • a network controller 130 may couple to a set of BSs and may provide coordination and control for these BSs.
  • Network controller 130 may communicate with the BSs via a backhaul.
  • the BSs may also communicate with one another, e.g., directly or indirectly via a wireless or wireline backhaul.
  • UEs 120 may be dispersed throughout wireless network 100, and each UE may be stationary or mobile.
  • a UE may also be referred to as an access terminal, a terminal, a mobile station, a subscriber unit, a station, and/or the like.
  • a UE may be a cellular phone (e.g., a smart phone) , a personal digital assistant (PDA) , a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or equipment, biometric sensors/devices, wearable devices (smart watches, smart clothing, smart glasses, smart wrist bands, smart jewelry (e.g., smart ring, smart bracelet) ) , an entertainment device (e.g., a music or video device, or a satellite radio) , a vehicular component or sensor, smart meters/sensors, industrial manufacturing equipment, a global positioning system device, or any other suitable device that is configured to communicate via a wireless or wired medium.
  • PDA personal digital assistant
  • WLL wireless local loop
  • Some UEs may be considered machine-type communication (MTC) or evolved or enhanced machine-type communication (eMTC) UEs.
  • MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, location tags, and/or the like, that may communicate with a base station, another device (e.g., remote device) , or some other entity.
  • a wireless node may provide, for example, connectivity for or to a network (e.g., a wide area network such as Internet or a cellular network) via a wired or wireless communication link.
  • Some UEs may be considered Internet-of-Things (IoT) devices, and/or may be implemented as NB-IoT (narrowband internet of things) devices.
  • IoT Internet-of-Things
  • NB-IoT narrowband internet of things
  • UE 120 may be included inside a housing that houses components of UE 120, such as processor components, memory components, and/or the like.
  • the processor components and the memory components may be coupled together.
  • the processor components e.g., one or more processors
  • the memory components e.g., a memory
  • the processor components and the memory components may be operatively coupled, communicatively coupled, electronically coupled, electrically coupled, and/or the like.
  • any number of wireless networks may be deployed in a given geographic area.
  • Each wireless network may support a particular RAT and may operate on one or more frequencies.
  • a RAT may also be referred to as a radio technology, an air interface, and/or the like.
  • a frequency may also be referred to as a carrier, a frequency channel, and/or the like.
  • Each frequency may support a single RAT in a given geographic area in order to avoid interference between wireless networks of different RATs.
  • NR or 5G RAT networks may be deployed.
  • two or more UEs 120 may communicate directly using one or more sidelink channels (e.g., without using a base station 110 as an intermediary to communicate with one another) .
  • the UEs 120 may communicate using peer-to-peer (P2P) communications, device-to-device (D2D) communications, a vehicle-to-everything (V2X) protocol (e.g., which may include a vehicle-to-vehicle (V2V) protocol, a vehicle-to-infrastructure (V2I) protocol, and/or the like) , a mesh network, and/or the like.
  • V2X vehicle-to-everything
  • the UE 120 may perform scheduling operations, resource selection operations, and/or other operations described elsewhere herein as being performed by the base station 110.
  • Devices of wireless network 100 may communicate using the electromagnetic spectrum, which may be subdivided based on frequency or wavelength into various classes, bands, channels, and/or the like.
  • devices of wireless network 100 may communicate using an operating band having a first frequency range (FR1) , which may span from 410 MHz to 7.125 GHz, and/or may communicate using an operating band having a second frequency range (FR2) , which may span from 24.25 GHz to 52.6 GHz.
  • FR1 first frequency range
  • FR2 second frequency range
  • the frequencies between FR1 and FR2 are sometimes referred to as mid-band frequencies.
  • FR1 is often referred to as a “sub-6 GHz” band.
  • FR2 is often referred to as a “millimeter wave” band despite being different from the extremely high frequency (EHF) band (30 GHz –300 GHz) which is identified by the International Telecommunications Union (ITU) as a “millimeter wave” band.
  • EHF extremely high frequency
  • ITU International Telecommunications Union
  • sub-6 GHz or the like, if used herein, may broadly represent frequencies less than 6 GHz, frequencies within FR1, and/or mid-band frequencies (e.g., greater than 7.125 GHz) .
  • millimeter wave may broadly represent frequencies within the EHF band, frequencies within FR2, and/or mid-band frequencies (e.g., less than 24.25 GHz) . It is contemplated that the frequencies included in FR1 and FR2 may be modified, and techniques described herein are applicable to those modified frequency ranges.
  • Fig. 1 is provided as an example. Other examples may differ from what is described with regard to Fig. 1.
  • Fig. 2 is a diagram illustrating an example 200 of a base station 110 in communication with a UE 120 in a wireless network 100, in accordance with various aspects of the present disclosure.
  • Base station 110 may be equipped with T antennas 234a through 234t
  • UE 120 may be equipped with R antennas 252a through 252r, where in general T ⁇ 1 and R ⁇ 1.
  • a transmit processor 220 may receive data from a data source 212 for one or more UEs, select one or more modulation and coding schemes (MCS) for each UE based at least in part on channel quality indicators (CQIs) received from the UE, process (e.g., encode and modulate) the data for each UE based at least in part on the MCS (s) selected for the UE, and provide data symbols for all UEs. Transmit processor 220 may also process system information (e.g., for semi-static resource partitioning information (SRPI) and/or the like) and control information (e.g., CQI requests, grants, upper layer signaling, and/or the like) and provide overhead symbols and control symbols.
  • MCS modulation and coding schemes
  • Transmit processor 220 may also generate reference symbols for reference signals (e.g., a cell-specific reference signal (CRS) , a demodulation reference signal (DMRS) , and/or the like) and synchronization signals (e.g., the primary synchronization signal (PSS) and secondary synchronization signal (SSS) ) .
  • a transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on the data symbols, the control symbols, the overhead symbols, and/or the reference symbols, if applicable, and may provide T output symbol streams to T modulators (MODs) 232a through 232t.
  • MIMO multiple-input multiple-output
  • Each modulator 232 may process a respective output symbol stream (e.g., for OFDM and/or the like) to obtain an output sample stream. Each modulator 232 may further process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a downlink signal. T downlink signals from modulators 232a through 232t may be transmitted via T antennas 234a through 234t, respectively.
  • antennas 252a through 252r may receive the downlink signals from base station 110 and/or other base stations and may provide received signals to demodulators (DEMODs) 254a through 254r, respectively.
  • Each demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) a received signal to obtain input samples.
  • Each demodulator 254 may further process the input samples (e.g., for OFDM and/or the like) to obtain received symbols.
  • a MIMO detector 256 may obtain received symbols from all R demodulators 254a through 254r, perform MIMO detection on the received symbols if applicable, and provide detected symbols.
  • a receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for UE 120 to a data sink 260, and provide decoded control information and system information to a controller/processor 280.
  • controller/processor may refer to one or more controllers, one or more processors, or a combination thereof.
  • a channel processor may determine reference signal received power (RSRP) , received signal strength indicator (RSSI) , reference signal received quality (RSRQ) , channel quality indicator (CQI) , and/or the like.
  • RSRP reference signal received power
  • RSSI received signal strength indicator
  • RSRQ reference signal received quality
  • CQI channel quality indicator
  • one or more components of UE 120 may be included in a housing 284.
  • Network controller 130 may include communication unit 294, controller/processor 290, and memory 292.
  • Network controller 130 may include, for example, one or more devices in a core network.
  • Network controller 130 may communicate with base station 110 via communication unit 294.
  • a transmit processor 264 may receive and process data from a data source 262 and control information (e.g., for reports that include RSRP, RSSI, RSRQ, CQI, and/or the like) from controller/processor 280. Transmit processor 264 may also generate reference symbols for one or more reference signals. The symbols from transmit processor 264 may be precoded by a TX MIMO processor 266 if applicable, further processed by modulators 254a through 254r (e.g., for DFT-s-OFDM, CP-OFDM, and/or the like) , and transmitted to base station 110.
  • the UE 120 includes a transceiver.
  • the transceiver may include any combination of antenna (s) 252, modulators and/or demodulators 254, MIMO detector 256, receive processor 258, transmit processor 264, and/or TX MIMO processor 266.
  • the transceiver may be used by a processor (e.g., controller/processor 280) and memory 282 to perform aspects of any of the methods described herein, for example, as described with reference to Figs. 3-7.
  • the uplink signals from UE 120 and other UEs may be received by antennas 234, processed by demodulators 232, detected by a MIMO detector 236 if applicable, and further processed by a receive processor 238 to obtain decoded data and control information sent by UE 120.
  • Receive processor 238 may provide the decoded data to a data sink 239 and the decoded control information to controller/processor 240.
  • Base station 110 may include communication unit 244 and communicate to network controller 130 via communication unit 244.
  • Base station 110 may include a scheduler 246 to schedule UEs 120 for downlink and/or uplink communications.
  • the base station 110 includes a transceiver.
  • the transceiver may include any combination of antenna (s) 234, modulators and/or demodulators 232, MIMO detector 236, receive processor 238, transmit processor 220, and/or TX MIMO processor 230.
  • the transceiver may be used by a processor (e.g., controller/processor 240) and memory 242 to perform aspects of any of the methods described herein, for example, as described with reference to Figs. 3-7.
  • Controller/processor 240 of base station 110, controller/processor 280 of UE 120, and/or any other component (s) of Fig. 2 may perform one or more techniques associated with backhaul aware bandwidth management, as described in more detail elsewhere herein.
  • controller/processor 240 of base station 110, controller/processor 280 of UE 120, and/or any other component (s) of Fig. 2 may perform or direct operations of, for example, process 400 of Fig. 4, process 500 of Fig. 5, and/or other processes as described herein.
  • Memories 242 and 282 may store data and program codes for base station 110 and UE 120, respectively.
  • memory 242 and/or memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code, program code, and/or the like) for wireless communication.
  • the one or more instructions when executed (e.g., directly, or after compiling, converting, interpreting, and/or the like) by one or more processors of the base station 110 and/or the UE 120, may cause the one or more processors, the UE 120, and/or the base station 110 to perform or direct operations of, for example, process 400 of Fig. 4, process 500 of Fig. 5, and/or other processes as described herein.
  • executing instructions may include running the instructions, converting the instructions, compiling the instructions, interpreting the instructions, and/or the like.
  • UE 120 may include means for receiving, from a base station, an indication of an operating bandwidth that is based at least in part on a backhaul data rate of a backhaul link between the base station and a core network, means for communicating, with the base station, using the operating bandwidth, and/or the like.
  • such means may include one or more components of UE 120 described in connection with Fig. 2, such as controller/processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, and/or the like.
  • base station 110 may include means for determining a backhaul data rate of a backhaul link between the base station and a core network, means for communicating, with one or more UEs, using an operating bandwidth that is based at least in part on the backhaul data rate, and/or the like.
  • such means may include one or more components of base station 110 described in connection with Fig. 2, such as antenna 234, DEMOD 232, MIMO detector 236, receive processor 238, controller/processor 240, transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234, and/or the like.
  • While blocks in Fig. 2 are illustrated as distinct components, the functions described above with respect to the blocks may be implemented in a single hardware, software, or combination component or in various combinations of components.
  • the functions described with respect to the transmit processor 264, the receive processor 258, and/or the TX MIMO processor 266 may be performed by or under the control of controller/processor 280.
  • Fig. 2 is provided as an example. Other examples may differ from what is described with regard to Fig. 2.
  • multiple macro cells may be deployed to provide wireless coverage over large areas.
  • multiple small cells e.g., femto cells, pico cells, micro cells, and/or the like
  • a base station of a small cell may provide wireless coverage for a smaller area than a macro cell but may be deployed in larger numbers than macro cells to provide additional wireless coverage on top of the wireless coverage provided by the macro cells.
  • the base stations of small cells may connect to a core network (e.g., a 5G core network and/or the like) via one or more backhaul links.
  • a backhaul link may be a wired backhaul link or a wireless backhaul link.
  • a backhaul link may provide a base station of a small cell with radio access to the core network.
  • a backhaul link for a base station of a small cell may use signals to carry information between the base station of the small cell and the core network.
  • the base station of a small cell may be connected to the core network (e.g., via the one or more backhaul links) through a security gateway, one or more internet protocol (IP) cloud devices, one or more other base stations of other cells, and/or the like.
  • IP internet protocol
  • small cells may support large bandwidths, such as 100 MHz, 200 MHz, 400 MHz, 800 MHz, and/or the like.
  • the small cells may support high air interface data rates (e.g., 2 gigabits per second (Gbps) , 10 Gbps, and/or the like) between a base station of the small cell and a UE, customer premises equipment (CPE) , a wireless node, and/or the like.
  • Gbps gigabits per second
  • CPE customer premises equipment
  • the air interface data rate is supported by the backhaul link (s) from the base station of the small cell to the core network.
  • the backhaul links may not provide a sufficient backhaul data rate or backhaul bandwidth to support the air interface data rate between the base station of the small cell and a UE or CPE.
  • network performance of small cells may be impaired as the backhaul links may provide insufficient backhaul support. This may cause a base station of the small cell to waste resources (e.g., network resources (e.g., time resources, frequency resources, and/or the like) , power resources, and/or the like) associated with communications between the base station and a UE using an air interface data rate that cannot be supported by one or more backhaul links between the base station and the core network.
  • waste resources e.g., network resources (e.g., time resources, frequency resources, and/or the like) , power resources, and/or the like) associated with communications between the base station and a UE using an air interface data rate that cannot be supported by one or more backhaul links between the base station and the core network.
  • a base station of a small cell may determine a backhaul data rate of a backhaul link between the base station and a core network (e.g., by performing a measurement of the backhaul data rate, performing a calculation of the backhaul data rate, receiving an indication of the backhaul data rate, and/or the like) .
  • the base station may determine an operating bandwidth for communications between the base station and a UE based at least in part on the backhaul data rate of the backhaul link between the base station and a core network.
  • the base station may ensure that an air interface data rate between the base station and a UE (or CPE) does not exceed a backhaul data rate of the backhaul link between the base station and the core network.
  • This conserves resources e.g., network resources, power resources, and/or the like
  • resources e.g., network resources, power resources, and/or the like
  • Fig. 3 is a diagram illustrating an example 300 associated with backhaul aware bandwidth management, in accordance with various aspects of the present disclosure.
  • a base station 110 and a UE 120 may communicate with one another in a wireless network (e.g., wireless network 100) .
  • the base station 110 may provide wireless coverage for a small cell (e.g., a femto cell, a pico cell, a micro cell, and/or the like) .
  • the base station 110 may communicate with a core network (e.g., a 5G core network, a 4G core network, and/or the like) via one or more backhaul links.
  • the UE 120 may be a CPE.
  • the base station 110 and the UE 120 may establish a communication connection.
  • the base station 110 and the UE 120 may communicate using an operating bandwidth.
  • the base station 110 may configure or indicate an operating bandwidth associated with the communication connection.
  • the operating bandwidth may be a wide bandwidth (e.g., 100 MHz, 200 MHz, 400 MHz, 800 MHz, and/or the like) .
  • the operating bandwidth may be associated with a maximum air interface data rate.
  • a maximum air interface data rate may be a maximum amount of data that can be transmitted, using the operating bandwidth, over a period of time.
  • a link between the base station 110 and the UE 120, using the operating bandwidth may have a maximum air interface downlink (e.g., from the base station 110 to the UE 120) data rate of 2 Gbps, 10 Gbps, and/or the like.
  • the base station 110 may determine a backhaul data rate of a backhaul link between the base station 110 and the core network.
  • the backhaul data rate may be based at least in part on a bandwidth of the backhaul link.
  • the base station 110 may perform a speed test to determine the backhaul data rate (e.g., to a predefined server within the core network) .
  • the base station 110 may measure the backhaul data rate of the backhaul link.
  • the base station 110 may perform a calculation of the backhaul data rate of the backhaul link.
  • the base station 110 may receive an indication (e.g., from the core network, from another base station 110, and/or the like) of the backhaul data rate of the backhaul link.
  • the base station 110 may determine the backhaul data rate of the backhaul link between the base station 110 and the core network based at least in part on a measurement of the backhaul data rate.
  • the base station 110 may periodically determine (e.g., periodically measure, calculate, and/or the like) the backhaul data rate of the backhaul link between the base station 110 and the core network (e.g., according to a periodic schedule) .
  • the determination of the backhaul data rate of a backhaul link between the base station 110 and the core network may be a persistent task to be performed by the base station 110.
  • the base station 110 may measure or determine the backhaul data rate of the backhaul link between the base station 110 and the core network prior to establishing a communication connection with the UE 120.
  • the base station 110 may determine an operating bandwidth for the communication connection between the base station 110 and the UE 120 based at least in part on the determination of the backhaul data rate of the backhaul link between the base station 110 and the core network. In some aspects, the base station 110 may determine the operating bandwidth such that a maximum data rate associated with the operating bandwidth does not exceed the backhaul data rate of the backhaul link between the base station and the core network.
  • the base station 110 may determine that a maximum data rate associated with a previous operating bandwidth (e.g., of an established communication connection between the base station 110 and the UE 120) is greater than the backhaul data rate of the backhaul link between the base station and the core network.
  • the base station 110 may modify (e.g., decrease) the previous operating bandwidth to a different operating bandwidth such that a maximum data rate associated with the different operating bandwidth is less than or equal to the backhaul data rate of the backhaul link between the base station and the core network.
  • the base station 110 may determine a maximum data rate associated with a previous operating bandwidth is less than the backhaul data rate of the backhaul link between the base station and the core network.
  • the base station 110 may modify (e.g., increase) the previous operating bandwidth to a different operating bandwidth such that a maximum data rate associated with the different operating bandwidth is less than or equal to the backhaul data rate of the backhaul link between the base station and the core network. In some aspects, if the base station 110 determines that a maximum data rate associated with a previous operating bandwidth is less than the backhaul data rate of the backhaul link between the base station and the core network, the base station 110 may not modify the previous operating bandwidth.
  • the base station 110 may modify a frequency associated with the operating bandwidth (e.g., modify the previous operating bandwidth from 200 MHz to 100 MHz, modify the previous operating bandwidth from 100 MHz to 200 MHz, and/or the like) . In some aspects, the base station 110 may modify or configure one or more bandwidth parts associated with the operating bandwidth based at least in part on the backhaul data rate of the backhaul link between the base station 110 and the core network.
  • the base station 110 may transmit an indication of the operating bandwidth to the UE 120.
  • the base station 110 may transmit the indication of the operating bandwidth using radio resource control signaling, medium access control (MAC) control element (MAC-CE) signaling, downlink control information signaling, and/or the like.
  • the base station 110 may periodically transmit the indication of the operating bandwidth to the UE 120 (e.g., based at least in part on a periodic schedule associated with measurements of the backhaul data rate) .
  • the base station 110 may transmit the indication of the operating bandwidth to the UE 120 when the base station 110 determines that a previous operating bandwidth should be changed based at least in part on the backhaul data rate.
  • the indication of the operating bandwidth may be periodically transmitted, semi-persistently transmitted, dynamically transmitted, and/or the like.
  • the indication of the operating bandwidth may be a broadcast transmission.
  • the UE 120 may receive the indication of the operating bandwidth from the base station 110.
  • the UE 120 may determine the operating bandwidth based at least in part on the indication of the operating bandwidth from the base station 110.
  • the base station 110 and the UE 120 may communicate using the operating bandwidth.
  • the operating bandwidth may be based at least in part on the backhaul data rate of the backhaul link between the base station 110 and the core network.
  • the base station 110 may ensure that an air interface data rate between the base station and the UE 120 does not exceed the backhaul data rate of the backhaul link between the base station 110 and the core network. This conserves resources (e.g., network resources, power resources, and/or the like) that would have otherwise been used communicating with the UE 120 using an operating bandwidth that supports an air interface data rate that cannot be supported by the backhaul link between the base station and the core network. Moreover, this improves network performance by ensuring that communication between the base station 110 and the UE 120 can be supported by the backhaul link.
  • resources e.g., network resources, power resources, and/or the like
  • Fig. 3 is provided as an example. Other examples may differ from what is described with respect to Fig. 3.
  • Fig. 4 is a diagram illustrating an example process 400 performed, for example, by a base station, in accordance with various aspects of the present disclosure.
  • Example process 400 is an example where the base station (e.g., base station 110 and/or the like) performs operations associated with backhaul aware bandwidth management.
  • the base station e.g., base station 110 and/or the like
  • process 400 may include determining a backhaul data rate of a backhaul link between the base station and a core network (block 410) .
  • the base station e.g., using transmit processor 220, receive processor 238, controller/processor 240, memory 242, and/or the like
  • process 400 may include communicating, with one or more UEs, using an operating bandwidth that is based at least in part on the backhaul data rate (block 420) .
  • the base station e.g., using transmit processor 220, receive processor 238, controller/processor 240, memory 242, and/or the like
  • Process 400 may include additional aspects, such as any single aspect or any combination of aspects described below and/or in connection with one or more other processes described elsewhere herein.
  • process 400 includes determining the operating bandwidth based at least in part on determining the backhaul data rate of the backhaul link between the base station and the core network.
  • determining the operating bandwidth comprises determining the operating bandwidth such that a maximum data rate associated with the operating bandwidth does not exceed the backhaul data rate of the backhaul link between the base station and the core network.
  • determining the operating bandwidth comprises determining that a maximum data rate associated with a previous operating bandwidth is greater than the backhaul data rate of the backhaul link between the base station and the core network, and modifying the previous operating bandwidth to the operating bandwidth such that a maximum data rate associated with the operating bandwidth is less than or equal to the backhaul data rate of the backhaul link between the base station and the core network.
  • the base station is associated with a small cell.
  • process 400 includes transmitting, to the one or more UEs, an indication of the operating bandwidth.
  • determining the backhaul data rate of the backhaul link between the base station and the core network comprises determining the backhaul data rate of the backhaul link between the base station and the core network according to a periodic schedule.
  • determining the backhaul data rate of the backhaul link between the base station and the core network comprises measuring the backhaul data rate of the backhaul link between the base station and the core network.
  • process 400 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 4. Additionally, or alternatively, two or more of the blocks of process 400 may be performed in parallel.
  • Fig. 5 is a diagram illustrating an example process 500 performed, for example, by a UE, in accordance with various aspects of the present disclosure.
  • Example process 500 is an example where the UE (e.g., UE 120 and/or the like) performs operations associated with backhaul aware bandwidth management.
  • process 500 may include receiving, from a base station, an indication of an operating bandwidth that is based at least in part on a backhaul data rate of a backhaul link between the base station and a core network (block 510) .
  • the UE e.g., using receive processor 258, transmit processor 264, controller/processor 280, memory 282, and/or the like
  • process 500 may include communicating, with the base station, using the operating bandwidth (block 520) .
  • the UE e.g., using receive processor 258, transmit processor 264, controller/processor 280, memory 282, and/or the like
  • Process 500 may include additional aspects, such as any single aspect or any combination of aspects described below and/or in connection with one or more other processes described elsewhere herein.
  • the base station is associated with a small cell.
  • receiving, from the base station, the indication of the operating bandwidth is based at least in part on a determination of the backhaul data rate of the backhaul link between the base station and the core network.
  • a maximum data rate associated with the operating bandwidth does not exceed the backhaul data rate of the backhaul link between the base station and the core network.
  • process 500 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 5. Additionally, or alternatively, two or more of the blocks of process 500 may be performed in parallel.
  • Fig. 6 is a block diagram of an example apparatus 600 for wireless communication.
  • the apparatus 600 may be a base station, or a base station may include the apparatus 600.
  • the apparatus 600 includes a reception component 602 and a transmission component 604, which may be in communication with one another (for example, via one or more buses and/or one or more other components) .
  • the apparatus 600 may communicate with another apparatus 606 (such as a UE, a base station, or another wireless communication device) using the reception component 602 and the transmission component 604.
  • the apparatus 600 may include one or more of a measurement component 608, a determination component 610, among other examples.
  • the apparatus 600 may be configured to perform one or more operations described herein in connection with Fig. 3. Additionally or alternatively, the apparatus 600 may be configured to perform one or more processes described herein, such as process 400 of Fig. 4, or a combination thereof.
  • the apparatus 600 and/or one or more components shown in Fig. 6 may include one or more components of the base station described above in connection with Fig. 2. Additionally, or alternatively, one or more components shown in Fig. 6 may be implemented within one or more components described above in connection with Fig. 2. Additionally or alternatively, one or more components of the set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or a processor to perform the functions or operations of the component.
  • the reception component 602 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 606.
  • the reception component 602 may provide received communications to one or more other components of the apparatus 600.
  • the reception component 602 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, or decoding, among other examples) , and may provide the processed signals to the one or more other components of the apparatus 606.
  • the reception component 602 may include one or more antennas, a demodulator, a MIMO detector, a receive processor, a controller/processor, a memory, or a combination thereof, of the base station described above in connection with Fig. 2.
  • the transmission component 604 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 606.
  • one or more other components of the apparatus 606 may generate communications and may provide the generated communications to the transmission component 604 for transmission to the apparatus 606.
  • the transmission component 604 may perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) , and may transmit the processed signals to the apparatus 606.
  • the transmission component 604 may include one or more antennas, a modulator, a transmit MIMO processor, a transmit processor, a controller/processor, a memory, or a combination thereof, of the base station described above in connection with Fig. 2. In some aspects, the transmission component 604 may be co-located with the reception component 602 in a transceiver.
  • the reception component 602 may receive communications using an operating bandwidth that is based at least in part on the backhaul data rate.
  • the measurement component 608 may measure a backhaul data rate of a backhaul link between the apparatus and a core network.
  • the determination component 610 may determine the backhaul data rate of the backhaul link between the apparatus and the core network, may determine the operating bandwidth based at least in part on measuring the backhaul data rate of the backhaul link between the apparatus and the core network.
  • the transmission component 604 may transmit communications using the operating bandwidth that is based at least in part on the backhaul data rate.
  • Fig. 6 The number and arrangement of components shown in Fig. 6 are provided as an example. In practice, there may be additional components, fewer components, different components, or differently arranged components than those shown in Fig. 6. Furthermore, two or more components shown in Fig. 6 may be implemented within a single component, or a single component shown in Fig. 6 may be implemented as multiple, distributed components. Additionally or alternatively, a set of (one or more) components shown in Fig. 6 may perform one or more functions described as being performed by another set of components shown in Fig. 6.
  • Fig. 7 is a block diagram of an example apparatus 700 for wireless communication.
  • the apparatus 700 may be a UE, or a UE may include the apparatus 700.
  • the apparatus 700 includes a reception component 702 and a transmission component 704, which may be in communication with one another (for example, via one or more buses and/or one or more other components) .
  • the apparatus 700 may communicate with another apparatus 706 (such as a UE, a base station, or another wireless communication device) using the reception component 702 and the transmission component 704.
  • the apparatus 700 may include one or more of a determination component 708, among other examples.
  • the apparatus 700 may be configured to perform one or more operations described herein in connection with Fig. 3. Additionally or alternatively, the apparatus 700 may be configured to perform one or more processes described herein, such as process 500 of Fig. 5, or a combination thereof.
  • the apparatus 700 and/or one or more components shown in Fig. 7 may include one or more components of the user equipment described above in connection with Fig. 2. Additionally, or alternatively, one or more components shown in Fig. 7 may be implemented within one or more components described above in connection with Fig. 2. Additionally or alternatively, one or more components of the set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or a processor to perform the functions or operations of the component.
  • the reception component 702 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 706.
  • the reception component 702 may provide received communications to one or more other components of the apparatus 700.
  • the reception component 702 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, or decoding, among other examples) , and may provide the processed signals to the one or more other components of the apparatus 706.
  • the reception component 702 may include one or more antennas, a demodulator, a MIMO detector, a receive processor, a controller/processor, a memory, or a combination thereof, of the user equipment described above in connection with Fig. 2.
  • the transmission component 704 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 706.
  • one or more other components of the apparatus 706 may generate communications and may provide the generated communications to the transmission component 704 for transmission to the apparatus 706.
  • the transmission component 704 may perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) , and may transmit the processed signals to the apparatus 706.
  • the transmission component 704 may include one or more antennas, a modulator, a transmit MIMO processor, a transmit processor, a controller/processor, a memory, or a combination thereof, of the user equipment described above in connection with Fig. 2. In some aspects, the transmission component 704 may be co-located with the reception component 702 in a transceiver.
  • the reception component 702 may receive, from a base station, an indication of an operating bandwidth that is based at least in part on a backhaul data rate of a backhaul link between the base station and a core network.
  • the determination component 708 may determine the operating bandwidth based at least in part on the indication of the operating bandwidth.
  • the transmission component 704 may transmit communications using the operating bandwidth.
  • Fig. 7 The number and arrangement of components shown in Fig. 7 are provided as an example. In practice, there may be additional components, fewer components, different components, or differently arranged components than those shown in Fig. 7. Furthermore, two or more components shown in Fig. 7 may be implemented within a single component, or a single component shown in Fig. 7 may be implemented as multiple, distributed components. Additionally or alternatively, a set of (one or more) components shown in Fig. 7 may perform one or more functions described as being performed by another set of components shown in Fig. 7.
  • the term “component” is intended to be broadly construed as hardware, firmware, and/or a combination of hardware and software.
  • a processor is implemented in hardware, firmware, and/or a combination of hardware and software. It will be apparent that systems and/or methods described herein may be implemented in different forms of hardware, firmware, and/or a combination of hardware and software. The actual specialized control hardware or software code used to implement these systems and/or methods is not limiting of the aspects. Thus, the operation and behavior of the systems and/or methods were described herein without reference to specific software code-it being understood that software and hardware can be designed to implement the systems and/or methods based, at least in part, on the description herein.
  • satisfying a threshold may, depending on the context, refer to a value being greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, and/or the like.
  • “at least one of: a, b, or c” is intended to cover a, b, c, a-b, a-c, b-c, and a-b-c, as well as any combination with multiples of the same element (e.g., a-a, a-a-a, a-a-b, a-a-c, a-b-b, a-c-c, b-b, b-b-b, b-b-c, c-c, and c-c-c or any other ordering of a, b, and c) .
  • the phrase “only one” or similar language is used.
  • the terms “has, ” “have, ” “having, ” and/or the like are intended to be open-ended terms.
  • the phrase “based on” is intended to mean “based, at least in part, on” unless explicitly stated otherwise.
  • the term “or” is intended to be inclusive when used in a series and may be used interchangeably with “and/or, ” unless explicitly stated otherwise (e.g., if used in combination with “either” or “only one of” ) .

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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

Divers aspects de la présente divulgation portent d'une manière générale sur la communication sans fil. Selon certains aspects, une station de base peut déterminer un débit de données de backhaul d'une liaison de backhaul entre la station de base et un réseau central; et communiquer avec un ou plusieurs équipements utilisateur, à l'aide d'une bande passante de fonctionnement qui est basée, au moins en partie, sur le débit de données de backhaul. La divulgation concerne également de nombreux autres aspects.
PCT/CN2020/099109 2020-06-30 2020-06-30 Gestion de bande passante sensible au backhaul WO2022000224A1 (fr)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8699423B1 (en) * 2008-06-13 2014-04-15 Clearwire Ip Holdings Llc Wireless slot allocation
CN103875297A (zh) * 2011-08-03 2014-06-18 黑莓有限公司 分配回程资源
WO2017015802A1 (fr) * 2015-07-25 2017-02-02 华为技术有限公司 Procédé et appareil d'attribution de ressources d'accès et de raccordement
CN110121191A (zh) * 2018-02-05 2019-08-13 成都华为技术有限公司 一种中继系统中资源配置的方法及装置
CN110166366A (zh) * 2018-02-14 2019-08-23 华为技术有限公司 网络拥塞控制方法、装置和系统

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8699423B1 (en) * 2008-06-13 2014-04-15 Clearwire Ip Holdings Llc Wireless slot allocation
CN103875297A (zh) * 2011-08-03 2014-06-18 黑莓有限公司 分配回程资源
WO2017015802A1 (fr) * 2015-07-25 2017-02-02 华为技术有限公司 Procédé et appareil d'attribution de ressources d'accès et de raccordement
CN110121191A (zh) * 2018-02-05 2019-08-13 成都华为技术有限公司 一种中继系统中资源配置的方法及装置
CN110166366A (zh) * 2018-02-14 2019-08-23 华为技术有限公司 网络拥塞控制方法、装置和系统

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
HUAWEI: "Necessary information for estimating UE throughput in WLAN", 3GPP DRAFT; R3-141583_NECESSARY INFORMATION FOR ESTIMATING UE THROUGHPUT IN WLAN, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG3, no. Dresden Germany; 20140818 - 20140822, 17 August 2014 (2014-08-17), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP050795975 *

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