WO2017107199A1 - Procédé, dispositif et système de communication - Google Patents

Procédé, dispositif et système de communication Download PDF

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Publication number
WO2017107199A1
WO2017107199A1 PCT/CN2015/098986 CN2015098986W WO2017107199A1 WO 2017107199 A1 WO2017107199 A1 WO 2017107199A1 CN 2015098986 W CN2015098986 W CN 2015098986W WO 2017107199 A1 WO2017107199 A1 WO 2017107199A1
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WO
WIPO (PCT)
Prior art keywords
base station
resource
detection
needs
sounding
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PCT/CN2015/098986
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English (en)
Chinese (zh)
Inventor
张弛
郭房富
古磊
Original Assignee
华为技术有限公司
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Priority to PCT/CN2015/098986 priority Critical patent/WO2017107199A1/fr
Publication of WO2017107199A1 publication Critical patent/WO2017107199A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/22—Arrangements affording multiple use of the transmission path using time-division multiplexing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a communication method, apparatus, and system.
  • TDD time division duplex
  • the neighboring base stations may respectively set different uplink and downlink subframe configurations. If a cell covered by one base station is in an uplink subframe and the base station schedules a user equipment (UE) to transmit uplink data, the cell covered by another base station is in a downlink subframe, and the base station schedules a distance from the uplink. The other UE that is closer to the UE transmitting the data performs downlink data reception. At this time, the UE performing uplink data transmission may seriously interfere with downlink data reception of another UE, which affects data transmission of the user.
  • UE user equipment
  • the present application describes a communication method, apparatus and system.
  • an embodiment of the present application provides a communication method, where the method includes: a transmitting node acquires a sounding signal transmission resource, and a receiving node acquires a sounding signal detecting resource.
  • the transmitting node sends a sounding signal in the sounding signal sending resource, and the receiving node detects the sounding signal according to the detecting signal detecting resource, and obtains a detection result.
  • the transmitting node is a base station that needs to perform downlink transmission
  • the receiving node is a base station that needs to perform uplink receiving
  • the transmitting node is a user equipment that needs to perform uplink transmission
  • the receiving node is a user that needs to perform downlink receiving. device.
  • the interference situation of the transmitting node to the receiving node can be obtained, and reliable input information can be provided for the interference coordination performed in advance of the actual data transmission.
  • the receiving node may acquire a sounding signal detection resource from a network device, and the transmitting node may acquire a sounding signal transmission resource from the network device.
  • the receiving node may report the obtained detection result to the network device.
  • the receiving node is a base station that needs to perform uplink receiving
  • the transmitting node is a base station that needs to perform downlink transmission
  • the network device is a control node.
  • the probe signal transmission resource, the probe signal The number detection resource and the reporting resource may be configured by the control node.
  • the base station that needs to perform uplink reception and the base station that needs to perform downlink transmission may set different TDD uplink and downlink subframe configurations. According to the solution provided by the embodiment, the resource utilization efficiency in the communication system using the flexible TDD uplink and downlink subframe configuration can be improved.
  • the receiving node is a base station that needs to perform uplink receiving
  • the transmitting node is a base station that needs to perform downlink transmission
  • the detection signal detection resource obtained by the receiving node and the transmission resource obtained by the transmitting node It can be configured in advance.
  • the receiving node may obtain the detection signal transmission resource of the receiving node according to the corresponding relationship between the receiving node and the detection signal transmission resource identifier, and obtain the detection signal detection resource according to the resource pool information and the size of the detection signal transmission resource.
  • the transmitting node may obtain the sounding signal sending resource of the transmitting node according to the corresponding relationship between the transmitting node and the detection signal detection resource identifier.
  • the network device may perform interference coordination according to the detection result.
  • interference coordination is performed according to the detection result of detecting the detection signal transmitted by the transmitting node reported by the receiving node, and the transmitting node and the transmitting node may reduce the transmitting node to the receiving node when performing communication. Interference, thus, can increase system resource utilization and system capacity.
  • the network device may further notify the receiving node of the reporting resource, where the reporting resource is used by the receiving node to report the detection result.
  • the reporting resources configured for different receiving nodes may be configured in a frequency division manner in the same time domain, and the frequency division granularity may be a different number of subcarriers.
  • the same frequency resource may be occupied, and different receiving nodes may be distinguished by means of code division.
  • Different receiving nodes may use the configured ZC sequence to multiplex the same frequency resource to report the detection result.
  • the detection result of the detection result of different nodes can be implemented in the form of occupying less system resources. For the communication system, the required resource overhead is small, and the network side has a large number of communication nodes in the system. Case.
  • the transmitting node is a user equipment that needs to perform uplink transmission
  • the receiving node is a user equipment that needs to perform downlink receiving
  • the network device is a base station.
  • the base station may have the same-frequency full-duplex communication capability, and the sounding signal transmission resource, the sounding signal detection resource, and the reporting resource may be configured by the base station or by a control node connected to the base station.
  • the base station includes a first base station and a second base station, where the first base station and the second base station allocate different time-division duplex TDD uplink and downlink subframe configurations, and the user equipment that needs to perform uplink transmission is
  • the first base station service, the user equipment that needs to perform downlink reception is served by the second base station, and the detection signal detection resource is notified by the second base station to the user equipment that needs to perform downlink reception, and the detection is performed.
  • the signaling resource is notified by the first base station to the user equipment that needs to perform uplink transmission.
  • the sounding signal transmission resource, the sounding signal detecting resource, and the reporting resource are configured by the first base station or the second base station, or are configured by a control node connected by the first base station and the second base station.
  • the sounding signal transmission resources of each of the transmitting nodes do not overlap each other in at least one resource dimension, and the at least one resource dimension includes a time domain and a frequency domain. Or airspace. In the frequency domain, the granularity of the sounding signal transmission resource may be one or more subcarriers.
  • different nodes can be used to perform interference detection in a form occupying less system resources. For the communication system, less resource overhead is required, and it is suitable for a network node having a large number of communication nodes in the system. .
  • the base station may be in downlink control information of a downlink control channel, such as a downlink physical control channel or an enhanced downlink physical control channel.
  • the allocation indication information for indicating the related resource is sent, or the allocation indication information may also be sent by using dedicated radio resource control signaling in a downlink data channel, such as a downlink data sharing channel.
  • the user equipment may obtain the timing relationship in advance, or include the timing relationship in the allocation indication information, so that when receiving the allocation indication information, the user equipment may obtain the time domain location of the allocated resource that is sent to the allocation indication information.
  • the detection resource or the time domain location of the resource is reported, and the detection resource or the report resource is obtained according to the frequency domain information indicated by the allocation indication information.
  • the method provided in this embodiment can reduce the system resource occupied by the allocation indication information.
  • the detection result reported by the receiving node may be an absolute quantized value of a result obtained by detecting the sounding signal, such as a quantized value of the received power, or may be a result of detecting the detected signal.
  • the relative quantized value is, for example, an index value indicating the level of the absolute quantized value of the detection result, or may be a value indicating whether the signal strength is strong or weak.
  • the quantized value of the received power is a linear average of the power of the resource elements carrying the sounding signal.
  • the resource element may be all resource elements carrying the sounding signal, or may be part of all resource elements.
  • the receiving node may report the measurement result by using bitmap information, and one bit information in the bitmap information represents a result of the measured detection signal sent by one transmitting node.
  • the sounding signal may not carry information.
  • the sounding signal occupies less system resources and has lower requirements on the receiving side.
  • the sounding signal transmission resource, the sounding signal detection resource or the reporting resource is periodically presented.
  • the period can be on the order of one hundred milliseconds.
  • the period of detecting and reporting the detection signal is relatively long, so that the overhead of system resources is relatively low.
  • the embodiment of the present application provides another communication method.
  • the first base station is in need of The base station that transmits downlink
  • the second base station is a base station that needs to perform uplink reception.
  • the first base station configures a detection signal transmission resource and a detection signal detection resource, and notifies the configured detection signal detection resource to the second base station.
  • the second base station configures a sounding signal transmission resource and a sounding signal detection resource, and notifies the first base station of the configured sounding signal transmission resource.
  • the first base station sends a sounding signal in the sounding signal sending resource
  • the second base station detects a sounding signal sent by the first base station according to the sounding signal detecting resource.
  • the second base station may perform interference coordination according to the detection result.
  • the second base station may send the detection result to the first base station, and the first base station performs interference coordination according to the detection result.
  • an embodiment of the present application provides another communication method, including: a first base station acquiring a sounding signal detection resource; the first base station detecting a resource according to the sounding signal, and transmitting a resource to the second base station in a sounding signal. And detecting, by the first base station, a detection result of detecting the detection signal; and the first base station and the second base station are configured with different time division duplex TDD uplink and downlink subframe configurations.
  • the embodiment of the present application provides another communication method, including: the first base station notifies the first user equipment UE of the sounding signal transmission resource, the first UE is served by the first base station; The base station notifies the second signal to the second UE, where the second UE is served by the second base station; the second base station receives the detection result sent by the second UE, and the detection result is the second a result obtained by the UE detecting, on the sounding signal detection resource, a sounding signal sent by the first UE on the sounding signal sending resource; the first base station and the second base station are set with different time division doubles TDD uplink and downlink subframe configuration.
  • the embodiment of the present application provides another communication method, including: the base station notifying the first user equipment UE of the sounding signal transmission resource, and notifying the second UE to the sounding signal detection resource, where the base station has the same frequency Full-duplex communication capability; the base station receives the detection result sent by the second UE, and the detection result is that the second UE sends the detection signal to the first UE on the detection signal detection resource. The detection signal sent on the resource is detected and the result is obtained.
  • an embodiment of the present application provides another communication method, including: a control node notifying a first base station of a sounding signal transmission resource, and notifying a second base station of the first base station and the The second base station is configured with different time division duplex TDD uplink and downlink subframe configurations; the control node receives the detection result sent by the second base station, and the detection result is that the second base station is on the detection signal detection resource. And a result obtained by detecting the detection signal sent by the first base station on the sounding signal transmission resource.
  • the embodiment of the invention provides a network device, which has the function of realizing the behavior of the network device in the actual method.
  • the functions may be implemented by hardware or by corresponding software implemented by hardware.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the network device includes a receiver and a transmitter configured to implement a corresponding receiving function and a notification or transmitting function in the above method, for example, a transmitter is used for Notifying the transmitting node of the sounding signal transmission resource, and notifying the receiving node of the sounding signal detecting resource, wherein the receiver is configured to receive the detection result reported by the receiving node.
  • the network device may further include a processor, configured to perform the foregoing resource configuration, and may also be used to perform interference coordination and the like according to the detection result reported by the receiving node.
  • the network device can also include a memory for coupling with the processor that holds program instructions and data necessary for the network device.
  • the network device may be the base station or control node described in the above scheme.
  • an embodiment of the present invention provides a communication node having a function of implementing a behavior of a transmitting node or a receiving node in the design of the foregoing method.
  • the function may be implemented by hardware, and the structure of the communication node includes a transceiver and a processor.
  • the corresponding software implementation can also be performed by hardware.
  • the hardware or software includes one or more modules corresponding to the functions described above. The modules can be software and/or hardware.
  • the communication node may be a receiving node
  • the transceiver is configured to acquire a sounding signal detection resource notified by the network device
  • the processor detects, according to the sounding signal, the transmitting node on the sounding signal sending resource.
  • the sent detection signal is detected
  • the transceiver is further configured to report the detection result obtained by detecting the detection signal to the network device.
  • the receiving node is a base station that needs to perform uplink receiving
  • the transmitting node is a base station that needs to perform downlink transmission
  • the network device is a control node.
  • the transmitting node is a user equipment that needs to perform uplink transmission
  • the receiving node is a user equipment that needs to perform downlink receiving
  • the network device is a base station.
  • the communication node may be a transmitting node
  • the transceiver is configured to acquire a sounding signal transmission resource notified by the network device, and send the sounding signal in the sounding signal sending resource.
  • an embodiment of the present invention provides a communication system, including the transmitting node, the receiving node, and the network device in the foregoing aspect.
  • an embodiment of the present invention provides a computer storage medium for storing computer software instructions for use in the network device, including a program designed to perform the above aspects.
  • an embodiment of the present invention provides a computer storage medium for storing computer software instructions used by the UE, including a program designed to perform the above aspects.
  • an embodiment of the present invention provides a base station, which may include a processor and a communication unit, where the processor may configure a detection signal transmission resource and a detection signal detection resource, where the base station may be a base station that needs to perform downlink transmission, or It can also be a base station that needs to receive uplink.
  • the base station is a base station that needs to perform downlink transmission, and the communication unit notifies the detection signal detection resource to other base stations that need to perform uplink reception.
  • the base station that needs to perform uplink reception may further include a transceiver, configured to send the sounding signal in the sounding signal transmission resource.
  • the communication The unit may further receive, by the base station that needs to perform uplink receiving, detection result obtained by detecting the resource according to the detection signal, and the processor performs interference coordination according to the processing result.
  • the communication unit is configured to send the sounding signal transmission resource to another base station that needs to perform downlink transmission, and the base station that needs to perform uplink receiving further includes receiving and transmitting.
  • the communication unit may send the detection result to the base station that needs to perform downlink transmission.
  • an embodiment of the present invention provides a communication system, including the base station described in the foregoing aspect.
  • an embodiment of the present invention provides a computer storage medium for storing computer software instructions for use by the base station, including a program designed to perform the above aspects.
  • a communication node that needs to perform data reception may acquire an interference situation of a communication node that needs to perform data transmission to a communication node that needs to receive data, thereby performing interference coordination for actual data transmission in advance.
  • interference coordination can be performed in advance for actual data transmission, which reduces the interference effect of the transmitting node on the receiving node, increases the system resource utilization and increases the system capacity, and improves the data communication rate of the user in the cell.
  • FIG. 1A is a schematic diagram of a communication system according to an embodiment of the present invention.
  • FIG. 1B is a schematic diagram of a communication system according to an embodiment of the present invention.
  • FIG. 2A is a schematic diagram of resource configuration according to an embodiment of the present invention.
  • 2B is a schematic diagram of resource configuration according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of another resource configuration according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of another resource configuration according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic diagram of another resource configuration according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a communication method according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a communication node according to an embodiment of the present invention.
  • the same-frequency full-duplex technology can also improve the resource utilization efficiency in the wireless system.
  • the base station with the same-frequency full-duplex capability can use the same transceiver to receive one UE to transmit data on the same frequency or adjacent frequency, and can also send to another UE. data. If the two UEs are adjacent, the UE performing uplink data transmission may cause serious interference to the UE that performs downlink data reception.
  • the neighboring base stations configured with different uplink and downlink subframe configurations are respectively performed.
  • the base station transmitting downlink will cause interference to the base station that is adjacent to the uplink.
  • an embodiment of the present invention proposes a solution based on the communication system shown in FIG. 1A and FIG. 1B to reduce interference between the terminal and the terminal and between the base station and the base station in the wireless communication system. Improve user data transmission efficiency.
  • an embodiment of the present invention provides a communication system 100.
  • the communication system 100 includes at least one base station (BS) and a plurality of UEs.
  • BS base station
  • UEs User Equipment
  • the base station 10 has the capability of co-frequency full-duplex communication, and can simultaneously transmit and receive on the same frequency or adjacent frequency. For example, the base station 10 can receive a signal when receiving a UE. At the same time, a signal is sent to another UE on the same frequency.
  • the base station 10 In the scenario of performing the same-frequency full-duplex communication as shown in FIG. 1A, there are a UE 20 that needs to perform uplink transmission and a UE 22 that needs to perform downlink reception, and an uplink cellular link L10 may exist between the base station 10 and the UE 20. There may be a downlink cellular link L12 between the base station 10 and the UE 22.
  • the UE that needs to perform uplink transmission and/or the UE that needs to perform downlink reception may also be included, for example, the UE 24 that needs to perform downlink reception and the UE 26 that needs to perform uplink transmission, between the base station 10 and the UE 24 There may be a downstream cellular link L14, and there may be an upstream cellular link L16 between the base station 10 and the UE 26.
  • the communication system 100 may include a scenario in which communication is performed using a flexible TDD uplink and downlink subframe configuration.
  • the communication system 100 may further include a base station 12, and the base station 10 and the base station 12 have a use.
  • the ability to communicate with the flexible TDD uplink and downlink subframe configuration can be performed according to the flexible TDD uplink and downlink subframe configuration.
  • the base station 10 and the base station 12 can respectively set different TDD uplink and downlink subframe configurations.
  • Information transmission can be performed between the base station 10 and the base station 12.
  • the TDD uplink and downlink sub-frame configuration example 36.311 downlink sub-frame configuration defined in the third Generation Partnership Project (3 rd generation partnership project, 3GPP ) Technical Specification (technical specification, TS).
  • 3GPP Third Generation Partnership Project
  • FIG. 1B there is a UE 20 that needs to perform uplink transmission, a base station 10 that needs to perform uplink reception, an uplink cellular link L10 between the base station 10 and the UE 20, and a UE 22 that needs to perform downlink reception in the communication system 100, and A base station 12 that performs downlink transmission.
  • the UE that needs to perform uplink transmission and/or the UE that needs to perform downlink reception may also be included, for example, the UE 24 that needs to perform downlink reception and the UE 26 that needs to perform uplink transmission, between the base station 12 and the UE 24 There may be a downstream cellular link L24', and there may be an upstream cellular link L16 between the base station 10 and the UE 26.
  • the communication system 100 as shown in FIGS. 1A and 1B may further include a control node 30, which may be connected to the base station 10 and/or the base station 12.
  • the control node 30 can perform unified scheduling on resources in the system, and can allocate resources to the UE, perform resource scheduling, or interfere with coordination.
  • the control node may be a network controller, and if the base station is a small station, the control node may be a macro base station that covers the small station.
  • the control node may also be a wireless network cross-system collaborative controller, etc., which is not limited in the embodiment of the present invention.
  • a UE that needs to perform uplink transmission and a base station that needs to perform downlink transmission may be referred to as a node that needs to transmit, or a node that needs to be transmitted, and a UE that needs to perform downlink reception and an uplink that needs to be uplink received.
  • a base station is called a node that needs to receive, or is called a receiving node.
  • the transmitting node and the receiving node may be referred to as communication nodes, all of which are devices of the same type or of the same nature, for example, the transmitting node and the receiving node are both base stations, or the transmitting node and the receiving The nodes are all UEs.
  • a UE that needs to perform uplink transmission may also be referred to as a UE that needs to perform uplink transmission.
  • the UE In communication with the base station, the UE needs to perform uplink data transmission, that is, needs to transmit uplink data.
  • a UE that needs to perform downlink reception may also be referred to as a UE that needs to perform downlink transmission.
  • the UE In communication with the base station, the UE needs to perform downlink data transmission, that is, needs to receive downlink data.
  • a base station that needs to perform downlink transmission may also be referred to as a base station that needs to perform downlink transmission, and the base station performs downlink data transmission and transmits downlink data.
  • a base station that needs to perform uplink reception may also be referred to as a base station that needs to perform uplink transmission, and the base station performs uplink data transmission and receives uplink data.
  • UE 20 is a transmitting node
  • UE 22 is a receiving node
  • the base station 12 is a transmitting node
  • the base station 10 is a receiving node.
  • the number of base stations and UEs included in the communication system 100 shown in FIG. 1A or FIG. 1B is merely an example, and the embodiment of the present invention is not limited thereto. For example, more UEs communicating with the base station may be included, or more base stations may be included.
  • the communication system 100 shown in FIG. 1A and FIG. 1B in addition to the UE and the network device shown, it may not be limited thereto, and may also include a core network device or a function for carrying a virtualized network function. Equipment, etc., will be apparent to those of ordinary skill in the art and will not be described in detail herein.
  • the communication system 100 may be various radio access technology (RAT) systems, such as, for example, code division multiple access (CDMA), time division multiple access (time division). Multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency-division multiple access (OFDMA), single carrier frequency division multiple access (single carrier FDMA, SC-FDMA) ) and other systems.
  • RAT radio access technology
  • CDMA code division multiple access
  • time division time division multiple access
  • FDMA frequency division multiple access
  • OFDMA orthogonal frequency-division multiple access
  • SC-FDMA single carrier frequency division multiple access
  • CDMA2000 can cover the interim standard (IS) 2000 (IS-2000), IS-95 and IS-856 standards.
  • the TDMA system can implement a wireless technology such as a global system for mobile communication (GSM).
  • GSM global system for mobile communication
  • An OFDMA system can implement such as evolved universal radio land access (evolved UTRA, E-UTRA), ultra mobile broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash OFDMA And other wireless technologies.
  • UTRA and E-UTRA are UMTS and UMTS evolved versions.
  • the various versions of 3GPP in long term evolution (LTE) and LTE-based evolution are new versions of UMTS that use E-UTRA.
  • the communication system 100 can also be applied to a communication technology that is future-oriented.
  • the embodiment of the present invention is applicable.
  • Technical solutions The system architecture and the service scenario described in the embodiments of the present invention are for the purpose of more clearly illustrating the technical solutions of the embodiments of the present invention, and do not constitute a limitation of the technical solutions provided by the embodiments of the present invention.
  • the technical solutions provided by the embodiments of the present invention are equally applicable to similar technical problems.
  • the base station is a device deployed in a radio access network to provide a wireless communication function for the UE.
  • the base station may include various forms of macro base stations, micro base stations (or small stations), relay stations, access points, and the like.
  • the name of a device having a base station function may be different, for example, in an LTE system, an evolved Node B (evolved NodeB, eNB or eNodeB), in the third Generation (3 rd generation, 3G) system, referred to as node B (node B) and the like.
  • the foregoing apparatus for providing a wireless communication function to a UE is collectively referred to as a base station or a BS.
  • the UE involved in the embodiments of the present invention may include various handheld devices having wireless communication functions, in-vehicle devices, wearable devices, computing devices, or other processing devices connected to the wireless modem.
  • the UE may also be referred to as a mobile station (MS), a terminal, a terminal equipment, and may also include a subscriber unit, a cellular phone, and a smart phone. Phone), wireless data card, personal digital assistant (PDA) computer, tablet computer, wireless tone Modem, handheld, laptop computer, cordless phone or wireless local loop (WLL) station, machine type communication , MTC) terminal, etc.
  • PDA personal digital assistant
  • WLL wireless local loop
  • MTC machine type communication
  • the above-mentioned devices are collectively referred to as UEs.
  • the UE has the capability of performing the same-frequency full-duplex communication with the base station.
  • the UE has the capability of performing flexible TDD uplink and downlink subframe configuration communication with the base station.
  • the network device may configure the transmitting node with the detecting resource for transmitting, and configure the detecting node with the detecting resource for detecting.
  • the transmitting node sends a sounding signal according to the sounding resource for transmitting, and the sounding resource for transmitting may also be referred to as a sounding signal sending resource.
  • the receiving node detects the sounding signal sent by the transmitting node according to the detecting resource used for detecting, and the detecting resource used for detecting may also be referred to as the sounding signal detecting resource. In this way, the receiving node can obtain the interference situation of the transmitting node.
  • the receiving node may report the detection result obtained by the detection to the network device, and the network device may obtain the interference situation of the transmitting node to the receiving node according to the detection result, coordinate according to the interference situation, and reduce the interference of the transmitting node to the receiving node.
  • the network device may be a base station, or a control node connected to the base station, or any network side device having resource configuration, resource scheduling, or interference coordination function.
  • the detecting signal sending resource and the detecting signal detecting resource may be configured by the base station, or may be configured by the control node or other network device.
  • the sounding signal transmission resource and the sounding signal detection resource are detected.
  • the base station or the control node may also be configured to report resources.
  • the configured probe signal sending resource may be notified to the UE that needs to perform uplink transmission, and the probe signal detection resource may be notified to the UE that needs to perform downlink receiving.
  • the configured resource may be notified to the base station that covers the corresponding UE, and then notified by the base station to the UE under coverage.
  • the so-called notification of the resource to the UE means that the UE can know the allocated resource.
  • the detection signal transmission resource and the sounding signal detection resource may be configured by the control node.
  • the probe signal transmission resource and the sounding signal detection resource are configured by one of the base stations.
  • the control node and the base station are connected by a wireless backhaul, the control node or the base station that needs to perform uplink receiving may further configure the reporting resource.
  • the sounding signal sending resource and the sounding signal detecting resource may also be referred to as a sounding resource.
  • the base station or the control node may separately configure the sounding signal transmission resources for the multiple transmitting nodes in a frequency division manner on the same time domain resource.
  • the sounding signal transmission resource may be configured in a time division manner, that is, the sounding signal transmission resources of different transmitting nodes may be configured in different time domains.
  • the probe signal transmission resource may also be allocated in a space division manner, that is, the detection of different transmitting nodes may be performed. Signaling resources are configured in different spaces.
  • the sounding signal transmission resources of different transmitting nodes may not overlap in at least one resource dimension, and the resource dimension includes a time domain, a frequency domain, or an airspace.
  • the sounding resource of the sounding signal may be configured in a sub-carrier granularity at least in the frequency domain, for example, a minimum of one sub-carrier may be occupied.
  • the sounding resource may also occupy a plurality of subcarriers in the frequency domain, for example, may be configured with a resource block (RB) as a granularity, or configured with a half RB.
  • RB resource block
  • the sounding resource of the sounding signal may be at least a symbol in the time domain, for example, the minimum may be one symbol, or may be multiple symbols, or may be one subframe or the like. Therefore, in the embodiment of the present invention, only a small amount of resources are consumed, and the receiving node can obtain the interference situation of the transmitting node to itself. This advantage is especially pronounced when the number of UEs or base stations involved in the system is large.
  • the base station 10 can configure the probe signal transmission resource of the UE 20, and configure at least one UE that needs to perform downlink reception, such as the detection signal detection resources of the UE 22 and the UE 24.
  • the base station 10 can also configure at least one reporting resource of the UE that needs to perform downlink receiving.
  • the related resources may also be configured by the control node 30 connected to the base station 10, and then notified by the base station 10 to the corresponding UE. Referring to FIG. 2A, the base station 10 or the control node 30 may configure a probe signal transmission resource to the UE 20 in the time-frequency resource P1.
  • each UE that needs to perform uplink transmission may be configured to occupy one resource block in a frequency-division manner from top to bottom.
  • the UE may be configured to occupy one subcarrier or multiple subcarriers according to the actual needs of the system, which is not limited herein.
  • each UE may be configured with multiple RBs as sounding signal transmission resources.
  • the resource block P1a is used for the UE 20 to send the sounding signal, and the resource block P1a can also be used as the detection signal detecting resource of the other UEs that need to perform downlink receiving, such as the UE 22 and the UE 24.
  • the baseband 10 may optionally be in the time-frequency resource P2.
  • the configuration may be performed, or may be configured on the time-frequency resource P2 or on other time-frequency resources, even if the time-frequency resource P1 can be configured to detect that the signal transmission resource meets the number of UEs that need to participate in the detection. Therefore, the time-frequency resource P2 shown in FIG. 2A or FIG. 2B is optional (optional, O).
  • the control node may configure a probe signal transmission resource for the UE that needs to perform uplink transmission, and configure a sounding signal receiving resource for the UE that needs to perform downlink reception.
  • the configuration of the sounding signal transmission resource may be performed by one of the base stations configured with different TDD uplink and downlink subframe configurations, and the information of the configured sounding signal transmission resource may be sent to other base stations, and other base stations may configure the coverage of the UE to be performed.
  • the detection signal of the detection signal of the UE is received by the downlink, for example, the detection signal transmission resource configured for the UE that needs to perform uplink transmission is used as the detection signal detection resource of the downlink receiving UE, or the detection signal may be sent by one of the base stations.
  • the resource block P1a may be configured by the control node 30 to transmit a resource for the probe signal of the UE 20.
  • the P1a is also used as a probe signal detection resource of at least one UE that needs to perform downlink reception, such as the UE 22 and the UE 24.
  • the base station 10 may configure the resource block P1a to transmit the resource for the sounding signal of the UE20, and the base station 10 may configure the resource block P1a as the information of the sounding signal transmission resource of the UE20 to the base station 12.
  • the base station 12 may The resource block P1a serves as a sounding detection resource of at least one UE that needs to perform downlink reception.
  • the control node may configure a probe signal transmission resource for a base station that needs to perform downlink transmission, and configure a sounding signal receiving resource for a base station that needs to perform uplink reception.
  • the base station that needs to perform downlink transmission may perform configuration of the sounding signal transmission resource, and send the information of the configured sounding signal transmission resource to the base station that needs to perform uplink receiving, and the base station that needs to perform uplink receiving may be configured according to the received configuration.
  • the information of the sounding signal transmission resource configures the sounding signal detection resource.
  • the base station that needs to perform the downlink transmission may perform the configuration of the detection signal transmission resource and the detection signal detection resource, and send the information of the detection signal detection resource to the base station that needs to perform uplink reception.
  • the resource block P1a may be configured by the control node 30 to transmit a resource for the sounding signal of the base station 12, and the P1a is also used as a sounding signal detecting resource of the base station 10.
  • the base station 12 may configure the resource block P1a to transmit resources for its own sounding signal, and the base station 12 may configure the resource block P1a as the sounding signal transmission resource information of the base station 12 to the base station 10, and the base station 10 may allocate resources.
  • Block P1a receives resources as a sounding signal.
  • each base station that needs to perform downlink transmission may be configured to occupy one resource block from top to bottom in a frequency division manner.
  • the base station may be configured to occupy one subcarrier or multiple subcarriers according to actual needs of the system, which is not limited herein.
  • the detection signal transmission resource of the base station that needs to perform downlink transmission, and the detection signal reception resource of the base station that needs to perform uplink reception may also be configured in advance.
  • transmission and detection of sounding signals may be configured in a resource pool for a plurality of base stations in a specific range.
  • the size of the sounding signal transmission resource used for transmitting sounding signals by the plurality of base stations may be fixed, and the size of the sounding signal transmitting resources of different base stations may be the same.
  • the base station in the specific range knows in advance the size and the information of the resource pool.
  • the specific range may also be referred to as a base station cluster, that is, multiple base stations belong to the same cluster.
  • the base station can detect the sounding signals transmitted by other base stations. For example, in a plurality of small stations configured in a hotspot range, multiple small stations can be resourced together to share the services of the terminals in the hotspot range.
  • the detection signals transmitted by other base stations can be detected.
  • the identity (ID) of the sounding signal transmission resource may correspond to the identifier of the base station. In this way, for each base station in the base station cluster, it is known that the probe signal transmission resource belongs to itself, that is, the probe signal transmission resource corresponding to the identity of the own, and the information of the resource pool and the size of the probe signal transmission resource.
  • the base station can send resource information according to the resource pool information and its own sounding signal, and the size of the sounding signal sending resource can be configured to be configured for its own sounding signal sending resource and sounding signal detecting resource, that is, in the sounding signal resource pool, except for itself.
  • the resources outside the detection signal transmission resource can be used as the detection signal detection resources, thereby knowing the detection signal detection resources for detecting the detection signals sent by other base stations.
  • the resource pool includes four resource units with frequency IDs of F, F+1, F+2, and F+3.
  • each resource unit is fixed, and the information of the resource pool and the size information of the sounding signal transmission resources are known in advance by the four base stations.
  • the base station with ID 0 and the resource with frequency ID F have a corresponding relationship.
  • the base station with ID 1 and the resource with frequency ID F+1 have a corresponding relationship.
  • the base station with ID 2 and the resource with frequency ID F+2 correspond. Relationship, a base station with ID 3 and a resource with frequency ID F+3 have a corresponding relationship.
  • the detection signal transmission resource is a resource whose frequency ID is F
  • the detection signal detection resource may be a resource with frequency IDs of F+1, F+2, and F+3.
  • base stations with IDs 1, 2, and 3 can obtain their own probe signal transmission resources and probe signal detection resources according to this configuration relationship.
  • the resource pool, the size of the sounding signal transmission resource, and the correspondence between the base station and the sounding signal transmission resource may be configured in advance.
  • the resource pool, the size of the sounding signal transmission resource, and the corresponding relationship between the base station and the sounding signal transmission resource may also be performed by a specific base station in the base station cluster or by a control node connecting all base stations in the base station cluster. Dynamic configuration.
  • the control node 30 may configure the detection signal transmission resource of the UE 20, the detection signal transmission resource of the base station 12, the detection signal detection resource of the UE 22, and the detection signal detection resource of the UE 22 is used.
  • the detection signal sent by the UE 20 is detected, and the detection signal detection resource of the base station 10 is used.
  • the detection signal detection resource of the base station 10 is used to detect the detection signal sent by the base station 12.
  • the related resources involved above may also be configured by the base station 10 or the base station 12.
  • the control node 30, the base station 10, or the base station 12 may configure the resource block P1a to be a probe signal transmission resource of the UE 20.
  • the resource block P1a is also used for the probe signal detection resource of the UE 22, and the resource block P1b is configured as the base station 12.
  • the sounding signal transmission resource, the resource block P1b is also used for the sounding signal detection resource of the base station 10.
  • the UE 20 may send a sounding signal on the resource block P1a, and the UE 22 may detect the sounding signal sent by the UE.
  • the base station 12 can transmit a sounding signal on the resource block P1b, and the base station 10 can detect the sounding signal sent by the base station 12.
  • the base station or the control node may further configure the reporting resource of the UE that needs to perform downlink receiving.
  • the base station or the control node may configure the reported resource in a frequency division manner on the same time domain resource.
  • the minimum reported resource may be in the sub-carrier granularity, for example, a minimum of one sub-carrier may be occupied. Therefore, the UE that needs to perform downlink reception can report the detection result of the detected detection signal by occupying a small amount of resources.
  • the reporting resource may also be granular in multiple subcarriers. For example, in the communication system shown in FIG. 1A of the embodiment of the present invention, referring to FIG.
  • one sub-carrier is configured in sequence from top to bottom, and is respectively configured to UEs that need to perform downlink reception, that is, UE22 and UE24.
  • the subcarriers Ra and Rb are used for the reporting resources reported by the UE 22 and the UE 24 respectively.
  • the base station or the control node may also configure the same time-frequency resource for the UE that needs to perform downlink receiving, and may occupy one resource block (RB) in the frequency domain, or may also
  • the subcarrier is granular, for example, at least two subcarriers, and in the time domain, it can be configured in units of subframes.
  • the UEs that need to perform downlink reception may be differentiated in the code domain, that is, different codes are configured, and different UEs are distinguished by code division, and the frequency domain plus code domain is used. Differentiate the reporting resources of the UEs that need to be configured for downlink reception.
  • a sequence having orthogonal characteristics may be used for code division, such as a Zadoff-Chu sequence (also referred to as a generalized sample sequence).
  • a Zadoff-Chu sequence also referred to as a generalized sample sequence.
  • the resource block Rab in the time-frequency resource R, the resource block Rab is configured to the UE 22 and the UE 24, and in the resource block Rab, the ZC sequence a (ZCa The UE 22 is configured to send the detection result of the UE 22, and the ZC sequence b (ZCb) is configured to the UE 24 for transmitting the detection result of the UE 24.
  • the period of the probe resource or the reported resource may be periodically presented, such as periodically configured, or configured to periodically appear. That is, the transmitting node may periodically send a sounding signal, and the receiving node performs periodic detection and may perform periodic reporting.
  • the period may be relatively long, for example, in the range of 100 milliseconds, so that the detection of the detection signal and the reporting of the detection result have lower system resource overhead, and are more suitable for an ultra dense network (UDN) scenario.
  • UDN ultra dense network
  • the UE that detects the detection signal according to the detection signal transmission resource configured in FIG. 2A, FIG. 2B or FIG. 3 can report the detected detection result to the network device by using the report resource configuration configured in FIG. 4 or FIG.
  • a resource for transmitting a reference signal is further configured in the configured reporting resource, and the reference signal may be used by the network side to demodulate the reported detection result.
  • L, A, P1, P2, R, ab, Ra-Rb, Rab, etc. are a distinguishing symbol for the described object, and may also be identified by any other form of symbol.
  • the application documents do not have a specifically defined meaning.
  • the UE that needs to perform uplink transmission or the detection signal sent by the base station that needs to perform downlink transmission may carry information, such as carrying the identification information of the transmitting end, or transmitting the power level of the detection signal.
  • the detection signal may not carry specific information.
  • the symbols to be mapped after modulation may be set to an arbitrary value (for example, all are set to all 1s).
  • the sender maps the symbol to the configured probe signaling resource.
  • the receiver only needs to perform energy-based detection without demodulation. Decoding, the requirements of the receiver are low, and the system resources occupied by the probe signal are relatively small, so system resources can be saved.
  • a sounding resource is configured for the transmitting node, and a sounding resource is configured for the receiving node.
  • the sounding signal is used by the transmitting node to transmit a sounding signal
  • the sounding signal detecting resource is used by the receiving node to receive a sounding signal sent by the transmitting node.
  • the network device may further configure the reporting resource to the receiving node.
  • the reporting resource may be used by the UE that needs to perform downlink reception to report the detection result detected on the detection signal detection resource to the network device.
  • the transmitting node may be a UE that needs to perform uplink transmission
  • the receiving node may be a UE that needs to perform downlink receiving
  • the network device may be a UE that needs to perform uplink transmission and the UE that needs to perform downlink receiving.
  • the base station, or the network device may also be a control node that is connected to the at least one base station that covers the UE that needs to perform uplink transmission and the UE that needs to perform downlink reception.
  • resource configuration may be performed by the same base station that covers the UE that needs to perform uplink transmission and the UE that needs to perform downlink reception, or may perform resource configuration by the control node of the base station. .
  • the UE that needs to perform uplink transmission is covered by the first base station
  • the UE that needs to perform downlink reception is covered by the second base station
  • the first base station and the second base station are respectively set.
  • Resource configuration may be performed by a control node with the first base station and the second base station, or may be configured by the first base station or the second base station.
  • the transmitting node may be a base station that needs to perform downlink transmission
  • the receiving node may be a base station that needs to perform uplink receiving
  • the network device may be a control node.
  • the notified sounding signal transmission resource and the sounding signal detection resource may be configured according to the manner as shown in FIG. 2A, FIG. 2B or FIG.
  • the reporting resource of the notification may be configured according to the manner as described in FIG. 4 or FIG. 5 above, and details are not described herein.
  • the network device notifies the transmitting node of the sounding signal transmission resource, and notifies the receiving node of the sounding signal detection resource.
  • the transmitting node may learn the detection signal transmission resource according to the notification of the network device, and the receiving node may learn the detection signal detection resource according to the notification of the network device.
  • the network device configures the reporting resource for the receiving node, the network device further notifies the receiving node of the reporting resource, and the receiving node learns the reported resource.
  • the receiving node is a UE that needs to perform downlink receiving, if the network device is to cover the UE that needs to perform uplink transmission and the downlink that needs to be downlinked.
  • the base station may notify the transmitting node of the sounding signal transmission resource, and notify the receiving node of the sounding
  • the signal receiving resource may also notify the receiving node of the reported resource.
  • the network device is a control node that is connected to the base station, the control node may notify the corresponding UE of the configured related resources by using the base station.
  • the first base station notifies the probe signal transmission resource to the UE that needs to perform uplink transmission
  • the second base station notifies the probe signal detection resource to the
  • the first base station and the second base station respectively set different TDD uplink and downlink subframe configurations.
  • the base station may send, by using the downlink control information, the allocation indication information indicating the detection signal transmission resource to the UE that needs to perform uplink transmission, and send the indication indication information indicating the detection signal detection resource to the UE that needs to perform downlink reception, or
  • the allocation indication information indicating the reporting resource may be sent to the UE that needs to perform downlink receiving, to notify the corresponding UE of the configured sounding signal sending resource, the sounding signal detecting resource or the reporting resource.
  • the base station may send the allocation indication information by using a downlink control channel, such as a physical downlink control channel or an enhanced physical downlink control channel.
  • the base station may also send the allocation indication information to a corresponding UE in a downlink data channel, such as a physical downlink shared channel.
  • the allocation indication information may be transmitted to the corresponding UE through dedicated radio resource control signaling.
  • the base station 10 can notify the corresponding UE of the resources configured as shown in FIG. 2A to FIG. 5 by assigning the indication information.
  • the base station 10 and the base station 12 can respectively notify the resources configured according to FIG. 2A to FIG. 5 to the corresponding UEs under the respective coverages by assigning the indication information.
  • the allocation indication information may be used to notify the detection signal transmission resource of the UE that needs to perform uplink transmission in an explicit manner, and may also notify the detection signal detection resource allocated to the UE that needs to perform downlink reception in an explicit manner, optionally
  • the location also includes the configured escalation resources.
  • the base station 10 may transmit the allocation indication information in the allocated resource, the real-time resource A.
  • the allocation indication information may indicate that the probe signal transmission resource of the UE 20 is located in the resource block P1a of the time-frequency resource P1, and the detection signal detection resources of the UE22 and the UE 24 are located in the resource block P1a of the time-frequency resource P1, and the reporting resources of the UE22 and the UE24 are respectively located.
  • the sub-carriers Ra and Rb in the time-frequency resource R shown in FIG. 4, or the reporting resources of the UE 22 and the UE 24 are located in the resource block Rab in the time-frequency resource R as shown in FIG. 5, and are used for code division.
  • the ZC sequences are ZCa and ZCb, respectively.
  • the base station 10 may respectively send allocation indication information to the UE 20 in the allocated resource A, and indicate the probe signal transmission resource configured for the UE 20 in the allocation indication information.
  • the base station 12 sends the allocation indication information to the UE 22 and the UE 24 in the allocated resource A, and indicates that the detection signal detection resources of the UE 22 and the UE 24 are located in the resource block P1a of the time-frequency resource P1, and the reporting resources of the UE 22 and the UE 24 are respectively located as shown in FIG.
  • the sub-carriers Ra and Rb in the time-frequency resource R, or the reporting resources of the UE 22 and the UE 24 are located in the resource block Rab in the time-frequency resource R as shown in FIG. 5, and the ZC sequences used for code division are respectively ZCa And ZCb.
  • the allocated resources used by the base station 10 and the allocated resources used by the base station 12 may be the same or different.
  • the receiving node is a base station that needs to perform uplink receiving, and in the communication system illustrated in FIG. 1B, the detecting node configures the detecting.
  • the signal transmission resource is notified to the base station that needs to perform downlink transmission, and the configured detection signal detection resource is notified to the base station that needs to perform uplink reception.
  • the base station that needs to perform downlink transmission and the base station that needs to perform uplink reception may also obtain detection according to the resource pool information, the correspondence between the base station and the sounding signal transmission resource, and the size of the sounding signal transmission resource according to the foregoing pre-configured method. Signaling resources and sounding signal detection resources.
  • the allocated resource and the probe resource may have a configured timing relationship, and the allocated resource, the probe resource, and the reported resource may have a configured timing relationship
  • the allocation indication information may also not include the time domain information of the probe resource or the reported resource.
  • the UE may determine the time domain location of the probe resource or the reported resource according to the time domain location of the allocated resource and the configured timing relationship, and further determine the allocation indication according to the allocation indication.
  • the probe resource and the frequency domain location information of the reported resource are included in the information, so that the probe resource or the report resource configured for itself can be determined. For example, referring to FIG.
  • the time domain location of the allocated resource A is n
  • the timing relationship between the probe resource P1 and the allocated resource A is: n+k
  • the timing relationship between the reported resource R and the probe resource P1 and the allocated resource A is: n +m+k.
  • the UE obtains the time domain location of the reporting resource R according to the timing relationship n+m+k, and obtains the reporting resource according to the frequency domain information in the allocation indication information or the frequency domain plus code domain information.
  • the n, m, and k may represent absolute time values, and may also represent relative time values. Or it may represent a value corresponding to the time unit number, such as a symbol, a time slot, a sequence of a subframe or a frame, etc., and may be an integer.
  • the transmitting node sends a sounding signal on the configured sounding signal transmission resource, and the receiving node detects the sounding signal sent by the transmitting node on the sounding signal detecting resource.
  • the transmitting node may transmit in a one-to-many form when transmitting the sounding signal, or may also transmit in the form of a broadcast.
  • the receiving node may detect, according to the received detection signal, the interference situation of the transmitting node that sends the detection signal to itself, and obtain the detection result.
  • the detection result may be a quantized measurement value, for example, may be an absolute quantization value, such as a direct measurement of the quantized value of the received power of the received detection signal.
  • the detected absolute quantized values may be converted to obtain relative quantized values.
  • the absolute quantized value is divided into N (N is a positive integer) range in advance, and each range corresponds to an index value, and the corresponding index value can be obtained according to the detected absolute quantized value, and the index value is used as the detection result.
  • the result may be determined based on a predetermined threshold.
  • the detection result is recorded as “1”. Otherwise, if the detected detection signal strength is less than the preset threshold and less than the preset threshold, the detection result is recorded as “0”. If the detected detection signal strength is equal to the preset threshold, the detection result may be recorded as "1” or may also be recorded as “0”. Of course, when the detection signal strength is greater than the preset threshold, the detection result is recorded as “0”, otherwise it is recorded as “1”.
  • the detection result when the detection result is a quantized value of the received power of the sounding signal, the detection result may be an average value of the received power on a resource element (RE) carrying the sounding signal.
  • An RE occupies one symbol in the time domain and one subcarrier in the frequency domain.
  • the measurement node performing the detection signal detection performs the reception power measurement averaging process on the RE carrying the detection signal sent by the measured node.
  • the measurement node performing the detection signal detection may perform the RE on the detection signal transmitted by the other measured node.
  • Receiving power measurement averaging processing the measurement node may perform power measurement averaging processing on the RE carrying the sounding signal transmitted by the measured node.
  • the average value of the power on the RE carrying the sounding signal may be a linear average of the power on the RE carrying the sounding signal.
  • the measurement node may perform reception power averaging processing in the same frequency or different frequency state.
  • a gap may be configured, in one interval, in addition to the main Detection is performed on a frequency band other than the frequency band.
  • a transition protection time is required before and after the interval, and the interval may be configured according to an interval configured in an existing system, or a new interval may be configured.
  • measurements can be taken simultaneously on different frequency bands.
  • the D2D UE can perform reception power averaging processing in the connected state.
  • the number of REs of the bearer detection signal used to perform the received power averaging process in a particular measurement frequency bandwidth and measurement period may depend on the implementation of the measurement node when the measurement accuracy requirement condition is met.
  • the measurement node may average the power of all REs carrying the sounding signals transmitted by the measured node, or may average the power of some of the REs of all the REs carrying the sounding signals transmitted by the measured node.
  • the solution of this embodiment may further include a 604 part.
  • the receiving node reports the detected result to the network device in the reporting resource.
  • the network device can obtain the detection result reported by the receiving node.
  • the UE that needs to perform downlink reception configures the reporting resource, and the application of the same frequency in the embodiment of the present invention
  • the UE that needs to perform downlink reception may report the detection result to the base station in the reporting resource, and the base station may further report the detection result to the control node.
  • the UE 22 or the UE 24 may report the detection result to the base station 10
  • the base station 10 may further report the detection result to the control node 30.
  • the UE that needs to perform downlink reception reports the detection result that is detected by itself to the base station that covers itself, and then The base station reports the received report result to the control node, or may report the reported result. Unified aggregation to one of the base stations. For example, in FIG. 1B, the UE 22 or the UE 24 may report the detection result to the base station 12, and the base station 12 may further report the detection result to the control node 30.
  • the content reported by the UE that needs to perform downlink reception may be an absolute quantization value mentioned in the above section 603, or may be a relative quantization value, or may be "0" or "1" representing a signal strength indication.
  • the reported detection result may be bitmap information obtained according to the detection measurement result, where 0 or 1 in the bitmap reflects the interference situation of other UEs to the UE, that is, whether the interference of other UEs on the UE is affected.
  • the threshold is exceeded, or is it less than or equal to the preset threshold.
  • the value of the bit in the bitmap information can be determined according to the detection result determination manner described in the above section 603.
  • the minimum granularity of the frequency domain in which the bitmap information occupies the reported resource may be one subcarrier.
  • the UE may carry 8 bits of bitmap information in one reporting resource. If the number of sounding signals sent by other UEs detected by the UE is less than or equal to 8, the UE only needs to use a bitmap with a length of 8 bits. If the number of the detection signals sent by other UEs detected by the UE is greater than 8, that is, the total number of bits to be reported is greater than 8 bits, the UE needs to segment the total number of bits indicating the detection result. It is a plurality of 8-bit bitmap information, and occupies multiple reporting resources for reporting. Of course, the content reported by the UE may also be a quantitative measurement value, which is not specifically limited in this embodiment of the present invention.
  • the two UEs configured to the same frequency domain location may use different ZC sequences for code domain differentiation, so that the two UEs may report the difference between the reported results. .
  • the base station that needs to perform uplink receiving detects the detection signal transmitted by the base station that needs to perform downlink transmission. As a result, it can also be reported to the control node.
  • the reported content may be the detection result described in the above section 603.
  • the base station that needs to perform the downlink transmission may report the detection result to the control node by using the configured reporting resource. If the two base stations and the control node are connected in a wired manner, the detection result may be directly reported to the control node.
  • the base station that needs to perform uplink receiving may not report the detection result to the control node, but save it locally, or may send the detection result to the base station that needs to perform downlink transmission.
  • a base station that needs to perform uplink reception if a base station that needs to perform uplink reception, a base station that needs to perform downlink transmission, and a UE that needs to perform downlink transmission and a UE that needs to perform uplink transmission are configured with resources according to the manner shown in FIG.
  • the detection of the sounding signal sent by the base station that needs to perform the uplink receiving, and the detection of the sounding signal sent by the UE that needs to perform the uplink transmitting by the downlink receiving UE may be performed according to the configured resources, and Report it.
  • the network device can be obtained and needs to be performed.
  • the technical solution provided by the embodiment of the present invention may further provide a method for interference coordination.
  • the method may further include:
  • Section 605 The network device performs coordination according to the detection result reported by the receiving node.
  • the UE is a base station, and may be coordinated by the base station according to the detection result reported by the receiving node, for example, by The base station of the UE that needs to perform the downlink reception needs to perform the downlink data transmission or the downlink data transmission, or the base station of the UE that needs to perform the uplink reception may schedule the needs.
  • the uplink transmitting UE performs uplink data transmission or does not perform uplink data transmission. In this way, interference of UEs that need to perform uplink transmission to UEs that need to perform downlink reception can be avoided.
  • the base station may determine, according to the reported detection result, that the UE that needs to perform downlink receiving is interfered by the UE that needs to perform uplink transmission, for example, if the detection result is reported in the form of bitmap information, the base station information may be according to the bitmap information.
  • the UE that needs to perform downlink receiving receives interference of the UE that needs to perform uplink transmission is less than or equal to a preset threshold. If the UE that needs to perform downlink reception receives the interference of the UE that needs to perform uplink transmission, the UE that needs to perform downlink reception performs downlink data transmission, and may also schedule the uplink to be uplinked. The transmitting UE performs uplink data transmission. If the UE that needs to perform downlink reception receives the interference that the UE that needs to perform uplink transmission is unreceivable, the UE that needs to perform downlink reception is not scheduled to perform downlink data transmission, and the uplink transmission is scheduled. The UE performs the uplink data transmission, or may perform the downlink data transmission by scheduling the UE to perform downlink reception without scheduling the uplink transmission of the UE that needs to perform uplink transmission.
  • control node may also perform coordination according to the foregoing detection result reported by the receiving node.
  • scheduling may be performed by the base station 10, or if the detection results are reported to the control node 30, coordination may also be performed by the control node.
  • coordination may be performed by the base station 12, or if the detection results are reported to the control node 30, coordination may also be performed by the control node.
  • the transmitting node and the receiving node may For the base station that needs to perform downlink transmission and the base station that needs to perform uplink reception, if the network device is a control node, the control node may perform interference coordination according to the detection result reported by the base station that needs to perform uplink reception. If the base station that needs to perform uplink reception does not report the detection result to the control node, the base station that needs to perform uplink reception may also perform interference coordination by itself.
  • the control node or the base station that needs to perform uplink receiving determines, according to the detection result, that the base station that needs to perform uplink receiving receives less interference than the preset threshold, the base station that needs to perform downlink transmission is in an acceptable state.
  • the interference level may be used to control the base station that needs to perform uplink reception to schedule uplink data reception, and control the base station that needs to perform downlink transmission to schedule downlink data transmission. If it is determined that the base station that needs to perform uplink receiving receives the interference condition of the base station that needs to perform downlink transmission is greater than a preset threshold, that is, is not at an acceptable interference level, the control node may uplink and lower the TDD of the two base stations.
  • the row subframe configuration is set to the same.
  • the preset threshold or the interference level may be determined according to the quality of service (QoS) of the uplink and downlink services.
  • QoS quality of service
  • the transmitting node is a base station that needs to perform downlink transmission
  • the receiving node is a base station that needs to perform uplink receiving
  • the base station that needs to perform uplink receiving does not report the detection result to the control node
  • the base station that needs to perform uplink reception or the base station that needs to perform downlink transmission may also perform interference coordination.
  • the base station that needs to perform uplink receiving may perform interference coordination according to the detection result. If the base station that needs to perform uplink receiving is determined according to the detection result, the interference situation of the base station that needs to perform downlink transmission is less than a preset threshold. That is, at an acceptable interference level, uplink data reception can be scheduled.
  • the uplink data transmission may not be scheduled, or the requirement may be
  • the TDD uplink and downlink subframe configuration of the base station that performs uplink reception is set to be the same as the TDD uplink and downlink subframe configuration of the base station that needs to perform downlink transmission.
  • the base station that needs to perform the uplink receiving sends the detection result to the base station that needs to transmit the downlink
  • the base station that needs the downlink transmission may perform interference coordination according to the detection result, and determine, according to the detection result,
  • the base station that needs to perform uplink receiving is less than the preset threshold by the base station that needs to perform downlink transmission, that is, is in an acceptable interference level, and the base station that needs to perform downlink transmission may schedule downlink data transmission. If the base station that needs to perform uplink receiving is greater than the preset threshold by the base station that needs to perform downlink transmission, that is, if it is not at an acceptable interference level, the downlink data transmission may not be scheduled, or the downlink transmission may be required.
  • the TDD uplink and downlink subframe configuration of the base station is set to be the same as the TDD uplink and downlink subframe configuration of the base station that needs to perform uplink reception.
  • the detection method provided by the embodiment of the present invention can enable the UE that needs to perform the downlink receiving to obtain the interference of the UE that needs to perform the uplink transmission, and the downlink method can be performed by using the reporting method of the present invention.
  • the interference effect of the UE that is detected by the UE and needs to perform uplink transmission is reported to the network device.
  • the embodiment of the present invention can provide the network device with the necessary input of the interference coordination decision in the communication system applying the same-frequency full-duplex technology or the flexible TDD uplink-downlink subframe configuration technology, thereby implementing the network-side assisted co-frequency.
  • Interference coordination between UEs in a full-duplex scenario or in a flexible TDD uplink-downlink subframe configuration scenario thereby reducing interference effects of UE transmissions received by other UEs in the same-frequency full-duplex or flexible TDD uplink-downlink subframe configuration scenario
  • Improve system resource utilization and increase system capacity in the same-frequency full-duplex or flexible TDD uplink-downlink subframe configuration scenario improve system resource utilization and increase system capacity in the same-frequency full-duplex or flexible TDD uplink-downlink subframe configuration scenario.
  • the method provided by the embodiment of the present invention can also obtain interference between adjacent base stations configured with different TDD uplink and downlink subframe configurations, and reduce interference effects of base stations that need to perform downlink transmission on other base stations that need to receive uplink. To improve resource utilization in the communication system and increase system capacity, and also to increase the rate of users in the cell.
  • the resource configuration method, the resource notification method, the interference detection method, and the interference coordination method provided by the embodiments of the present invention are respectively provided from the respective network elements and the interaction between the network elements.
  • each network element such as a UE, a base station, a control node, etc.
  • each network element includes hardware structures and/or software modules corresponding to each function.
  • the present invention can be implemented in a combination of hardware or hardware and computer software in combination with the elements and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.
  • FIG. 7 is a schematic diagram showing a possible structure of a network device involved in the above embodiment.
  • the network device may be a base station, such as the base station 10 or the base station 12 as shown in FIG. 1A or FIG. 1B, or the network device may also be a control node, for example, may be controlled as shown in FIG. 1A or FIG. 1B. Node 30.
  • the network device may include a receiver 701A, a transmitter 701B, where the transmitter 701B may be configured to notify the transmitting node of the sounding signal transmission resource, and notify the receiving node of the sounding signal detecting resource, and the receiver 701A may be configured to receive the The detection result reported by the receiving node.
  • the receiver 701A and the transmitter 701B may be configured to support the base station to transmit and receive information with the UE in the foregoing embodiment, and support radio communication between the UE and other UEs.
  • the network device can also include a controller/processor 702.
  • the controller/processor 702 may be configured to perform the resource configuration method as described in the foregoing embodiment, configure a sounding resource for the transmitting node, configure a sounding detection resource for the receiving node, or may also be configured to report to the receiving node. Resources.
  • the controller/processor 702 can also be used to perform the processing of the network device of FIG. 6 and/or other processes for the techniques described herein, such as interference coordination based on the detection results, and the like.
  • the network device can also include a memory 703 that can be used to store program code and data for the network device.
  • the network device is a base station
  • the network The network device can also include a communication unit 704 for supporting the base station to communicate with other network entities, which can be a communication circuit. For example, it is used to support communication between a base station and other communication network entities shown in FIG. 1A or FIG. 1B, such as control node 30 and the like.
  • Figure 7 only shows a simplified design of the network device.
  • the network device may include any number of transmitters, receivers, processors, controllers, memories, communication units, etc., and all network devices that can implement the present invention are within the scope of the present invention.
  • FIG. 8 shows a simplified schematic diagram of one possible design structure of a communication node involved in the above embodiments, which may be the receiving node or transmitting node described in the above embodiments.
  • the communication node includes a transceiver 801, a controller/processor 802.
  • the transceiver 801 is configured to acquire a network device to notify the detection signal detection resource
  • the controller/processor 802 is configured to detect, according to the detection signal, the resource to the transmitting node to send a resource in the detection signal.
  • the detection signal sent is detected, and the transceiver 801 is further configured to report the detection result obtained by detecting the detection signal to the network device.
  • the receiving node is a base station that needs to perform uplink receiving
  • the transmitting node is a base station that needs to perform downlink transmission
  • the transmitting node is a user equipment that needs to perform uplink transmission
  • the receiving node needs to perform downlink receiving.
  • the transceiver is configured to acquire a sounding signal transmission resource notified by the network device, and send a sounding signal in the sounding signal sending resource.
  • the transceiver 801 can also adjust (eg, analog convert, filter, amplify, upconvert, etc.) the output samples and generate an uplink signal that is transmitted via the antenna to the UE.
  • the base station described in the above embodiment.
  • the antenna receives the downlink signal transmitted by the base station in the above embodiment.
  • Transceiver 801 conditions (eg, filters, amplifies, downconverts, digitizes, etc.) signals received from the antenna and provides input samples.
  • the communication node may also include a modem processor 804 in which the encoder 8041 receives traffic data and signaling messages to be transmitted on the uplink, and for service data and signaling messages.
  • Modulator 8042 further processes (e.g., symbol maps and modulates) the encoded traffic data and signaling messages and provides output samples.
  • Demodulator 8044 processes (e.g., demodulates) the input samples and provides symbol estimates.
  • the decoder 8043 processes (e.g., deinterleaves and decodes) the symbol estimate and provides decoded data and signaling messages that are sent to the UE.
  • Encoder 8041, modulator 8042, demodulator 8044, and decoder 8043 may be implemented by a composite modem processor 804. These units are processed according to the radio access technology employed by the radio access network (e.g., access technologies of LTE and other evolved systems).
  • the controller/processor 802 performs control management of actions performed by the communication node for performing processing by the transmitting node or the receiving node in the above embodiments.
  • the controller/processor 802 is configured to support the communication node to perform Figure 6
  • the contents of the transmitting node or the receiving node are referred to in sections 601-605.
  • Memory 803 is used to store program code and data for the communication node.
  • the controller/processor for performing the above-described UE, base station or control node of the present invention may be a central processing unit (CPU), a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), and a field programmable gate. Array (FPGA) or other programmable logic device, transistor logic device, hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.
  • the steps of a method or algorithm described in connection with the present disclosure may be implemented in a hardware, or may be implemented by a processor executing software instructions.
  • the software instructions may be comprised of corresponding software modules that may be stored in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable hard disk, CD-ROM, or any other form of storage well known in the art.
  • An exemplary storage medium is coupled to the processor to enable the processor to read information from, and write information to, the storage medium.
  • the storage medium can also be an integral part of the processor.
  • the processor and the storage medium can be located in an ASIC. Additionally, the ASIC can be located in the user equipment.
  • the processor and the storage medium may also reside as discrete components in the user equipment.
  • the functions described herein can be implemented in hardware, software, firmware, or any combination thereof.
  • the functions may be stored in a computer readable medium or transmitted as one or more instructions or code on a computer readable medium.
  • Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another.
  • a storage medium may be any available media that can be accessed by a general purpose or special purpose computer.

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

Abstract

La présente invention se rapporte au domaine technique des communications sans fil et concerne un procédé de communication ; une première station de base et une seconde station de base comportent différentes configurations de sous-trame de liaison montante/liaison descendante de duplexage à répartition dans le temps (TDD) ; ladite première station de base obtient une ressource de détection de signal de sondage, et ladite seconde station de base obtient une ressource d'émission de signal de sondage ; selon la ressource de détection de signal de sondage, la première station de base détecte le signal de sondage envoyé sur la ressource d'émission de signal de sondage par la seconde station de base, et obtient un résultat de détection à partir de la détection dudit signal de sondage ; ainsi, les conditions de brouillage entre une station de base et une autre peuvent être obtenues, et des informations d'entrée fiables peuvent être fournies pour une coordination de brouillage réalisée avant la transmission de données.
PCT/CN2015/098986 2015-12-25 2015-12-25 Procédé, dispositif et système de communication WO2017107199A1 (fr)

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US20120275394A1 (en) * 2011-04-29 2012-11-01 Telefonaktiebolaget L M Ericsson (Publ) Generating uplink signals from user equipment nodes to identify interferers to a network node
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US20140341089A1 (en) * 2013-05-14 2014-11-20 Samsung Electronics Co., Ltd. Interference measurement method and apparatus for controlling inter-cell interference in wireless communication system

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CN102036249A (zh) * 2009-09-24 2011-04-27 株式会社Ntt都科摩 一种小区间干扰协调方法及基站
CN102036295A (zh) * 2010-12-02 2011-04-27 大唐移动通信设备有限公司 一种确定上下行配置的方法、***和设备
US20120275394A1 (en) * 2011-04-29 2012-11-01 Telefonaktiebolaget L M Ericsson (Publ) Generating uplink signals from user equipment nodes to identify interferers to a network node
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