WO2016077950A1 - Procédé, appareil et système de traitement d'informations de commande - Google Patents

Procédé, appareil et système de traitement d'informations de commande Download PDF

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Publication number
WO2016077950A1
WO2016077950A1 PCT/CN2014/091248 CN2014091248W WO2016077950A1 WO 2016077950 A1 WO2016077950 A1 WO 2016077950A1 CN 2014091248 W CN2014091248 W CN 2014091248W WO 2016077950 A1 WO2016077950 A1 WO 2016077950A1
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Prior art keywords
pdcch candidate
candidate channel
enodeb
interference information
reg
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PCT/CN2014/091248
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English (en)
Chinese (zh)
Inventor
王轶
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华为技术有限公司
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Priority to PCT/CN2014/091248 priority Critical patent/WO2016077950A1/fr
Priority to CN201480002115.2A priority patent/CN105874836B/zh
Publication of WO2016077950A1 publication Critical patent/WO2016077950A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a method, apparatus, and system for controlling information processing.
  • a physical downlink control channel carries information such as scheduling and control of a user equipment (User Equipment, UE).
  • the resource allocation of the PDCCH is performed with a Control Channel Element (CCE) granularity.
  • CCE Control Channel Element
  • a CCE consists of 9 Resource Element Groups (REGs).
  • REG Resource Element Groups
  • One REG consists of 4 or 6 adjacent resource elements located on the same Orthogonal Frequency Division Multiplexing (OFDM) symbol.
  • Resource Element, RE but the number of available REs is only four, and the REG consisting of 6 REs contains two Reference Signals (RSs), and the REs occupied by the RSs cannot be used by the REGs of the control channels. .
  • the LTE system supports four different types of PDCCHs, and each PDCCH includes CCEs of 1, 2, 4, and 8, respectively.
  • the number of CCEs used for PDCCH transmission which may also be referred to as a PDCCH aggregation level, is determined by an Evolved NodeB (eNodeB) according to the channel conditions in which the UE is located.
  • eNodeB Evolved NodeB
  • the eNodeB may select a PDCCH with an aggregation level of 1.
  • the eNodeB may need to select a PDCCH of aggregation level 8 to ensure that the UE correctly demodulates the PDCCH.
  • the UE performs a search on multiple possible PDCCH channels and blindly detects DCI information, and these possible PDCCH channels are referred to as PDCCH candidate channels of the UE.
  • GSM Global System for Mobile Communication
  • UMTS Universal Mobile Telecommunications System
  • MIMO Code Division Multiple Access
  • CDMA Code Division Multiple Access
  • WIMAX Worldwide Interoperability for Microwave Access
  • GSM Global System for Mobile Communication
  • UMTS Universal Mobile Telecommunications System
  • MIMO Code Division Multiple Access
  • CDMA Code Division Multiple Access
  • WIMAX Worldwide Interoperability for Microwave Access
  • TV or broadcast spectrum sharing operators can gradually release the spectrum of the GSM network for use in LTE networks.
  • WIMAX Worldwide Interoperability for Microwave Access
  • TV or broadcast spectrum sharing for example, operators can gradually release the spectrum of the GSM network for use in LTE networks.
  • the spectrum sharing the vacant spectrum of GSM traffic is fully utilized, the spectrum resource utilization rate is improved, and the LTE large bandwidth demand is met, and the LTE competitiveness is improved.
  • the eNodeB selects a PDCCH with a higher aggregation level for control information transmission.
  • the PDCCH with a higher aggregation level is used to reduce the system capacity.
  • the interference is large, if the aggregation level is selected to the maximum, the PDCCH's demodulation performance cannot be met, and the PDCCH coverage performance is reduced.
  • spectrum sharing the PDCCH is inevitably interfered by the heterogeneous system network, reducing the capacity or coverage of the PDCCH.
  • the embodiments of the present invention provide a method, an apparatus, and a system for controlling information processing, which solve the problem of capacity or coverage of a PDCCH when interference occurs.
  • an embodiment of the present invention provides a method for controlling information processing, where the method includes: an evolved base station eNodeB acquires interference information that is shared by a shared spectrum, and the shared spectrum is shared by the network different from long-term evolution LTE to the LTE. a spectrum used by the eNodeB to select a physical downlink control channel PDCCH candidate channel for the user equipment UE according to the interference information, where a control channel element CCE in the PDCCH candidate channel carries downlink control information DCI of the UE; the eNodeB The UE sends the DCI.
  • the eNodeB acquires a shared frequency
  • the interference information received by the spectrum includes: the eNodeB acquires interference information received by the shared spectrum by using a coordination controller.
  • the eNodeB selects a PDCCH candidate channel for the UE according to the interference information, where the eNodeB acquires the interfered resource element group REG set according to the interference information,
  • the set of REGs includes at least one interfered REG; the eNodeB selects the PDCCH candidate channel for the UE according to the set of REGs.
  • the eNodeB selects a PDCCH candidate channel for the UE according to the interference information, where the eNodeB acquires the interfered resource element group REG set according to the interference information,
  • the REG set includes at least one interfered REG; the eNodeB calculates an average SINR of each interfered REG in the REG set; and the average SINR of the eNodeB according to each of the REG sets that are interfered with is The UE selects the PDCCH candidate channel.
  • an embodiment of the present invention provides a base station, where the base station includes: a network interface unit, configured to acquire interference information received by a shared spectrum, where the shared spectrum is different from a long-term evolution LTE network shared to the LTE.
  • the processing unit is configured to select, according to the interference information acquired by the network interface unit, a physical downlink control channel PDCCH candidate channel for the user equipment UE, where the control channel element CCE in the PDCCH candidate channel carries the downlink of the UE Control information DCI; a transceiver unit, configured to send the DCI to the UE.
  • the network interface unit is configured to obtain interference information that is received by the shared spectrum, and includes: acquiring, by using a coordination controller, interference information received by the shared spectrum.
  • the processing unit is configured to select a PDCCH candidate channel for the UE according to the interference information acquired by the network interface unit, including: used according to the interference information Obtaining a resource element group REG set that is interfered, the REG set includes at least one interfered REG; and is configured to use the REG set as described
  • the UE selects the PDCCH candidate channel.
  • the processing unit is configured to select a PDCCH candidate channel for the UE according to the interference information acquired by the network interface unit, including: used according to the interference information.
  • the average SINR of the interfered REG is the UE selecting the PDCCH candidate channel.
  • an embodiment of the present invention provides a base station, including: a network interface, configured to acquire interference information received by a shared spectrum, where the shared spectrum is different from a spectrum shared by the LTE-used network to the LTE; a processor, configured to select, according to the interference information acquired by the network interface unit, a physical downlink control channel PDCCH candidate channel, where a control channel element CCE in the PDCCH candidate channel carries downlink control information DCI of the UE a transceiver for transmitting the DCI to the UE.
  • the embodiment of the present invention provides a method for controlling information processing, where the method includes: the coordination controller acquires interference information that is received by the shared spectrum, and the shared spectrum is shared by the network different from the long-term evolution LTE to the LTE. a spectrum used; the coordination controller sends the interference information to the evolved base station eNodeB of the LTE, and the interference information is used by the eNodeB to select a physical downlink control channel PDCCH candidate channel for the user equipment UE according to the interference information.
  • the control channel element CCE in the PDCCH candidate channel carries the downlink control information DCI of the UE, and the DCI is sent by the eNodeB to the UE.
  • the coordination controller acquires interference information received by the shared spectrum, including: the coordinated control Receiving the cell information sent by the eNodeB; the coordination controller receives the measurement report sent by the base station controller BSC; the coordination controller calculates the interference information received by the shared spectrum according to the cell information and the measurement report .
  • the interference information includes: a signal to interference and noise ratio SINR value of interference on each resource block RB of the shared spectrum.
  • an embodiment of the present invention provides a coordination controller, where the coordination controller includes: a processing unit, configured to acquire interference information received by a shared spectrum, where the shared spectrum is different from long-term evolution LTE network sharing a spectrum used by LTE; a network interface unit, configured to send the interference information acquired by the processing unit to an evolved base station eNodeB of the LTE, where the interference information is used by the eNodeB as a user equipment according to the interference information
  • the UE selects a physical downlink control channel PDCCH candidate channel, and the control channel element CCE in the PDCCH candidate channel carries downlink control information DCI of the UE, and the DCI is sent by the eNodeB to the UE.
  • the processing unit is configured to acquire interference information received by the shared spectrum, including: a network interface unit, configured to receive cell information sent by the eNodeB, where the network interface unit is further configured to receive a measurement report sent by the base station controller BSC, where the processing unit is configured to receive according to the network interface unit
  • the cell information and the measurement report received by the network interface unit are calculated, and interference information received by the shared spectrum is calculated.
  • the processing unit is configured to acquire interference information received by the shared spectrum, including: acquiring the shared spectrum The interference-to-interference signal-to-noise ratio SINR value on each resource block RB.
  • an embodiment of the present invention provides a coordination controller, where the coordination controller includes: a processor, configured to acquire interference information received by a shared spectrum, where the shared spectrum is different from long-term evolution LTE. a spectrum used by the LTE; a network interface, configured to send the interference information to the evolved base station eNodeB of the LTE, where the interference information is used by the eNodeB to select a physical downlink control channel PDCCH for the user equipment UE according to the interference information.
  • a candidate channel, a control channel element CCE in the PDCCH candidate channel carries downlink control information DCI of the UE, and the DCI is sent by the eNodeB to the UE.
  • the embodiments of the present invention obtain the interference information received by the shared spectrum, and use the acquired interference information to select a PDCCH candidate channel for the UE.
  • the eNodeB improves the capacity or coverage performance of the PDCCH.
  • 1 is a schematic structural diagram of a wireless communication network
  • FIG. 3 is a signaling interaction diagram of acquiring interference information received by a shared spectrum by a coordination controller according to an embodiment of the present invention
  • FIG. 4 is a flowchart of selecting a PDCCH candidate channel for a UE according to acquired interference information according to an embodiment of the present disclosure
  • FIG. 5 is a flowchart of selecting a PDCCH candidate channel for a UE according to acquired interference information according to an embodiment of the present disclosure
  • FIG. 6 is a flowchart of selecting a PDCCH candidate channel for a UE according to acquired interference information according to an embodiment of the present disclosure
  • FIG. 7 is a structural diagram of a base station according to an embodiment of the present invention.
  • FIG. 8 is a structural diagram of a base station according to an embodiment of the present invention.
  • FIG. 9 is a structural diagram of a coordination controller according to an embodiment of the present invention.
  • FIG. 10 is a structural diagram of a coordination controller according to an embodiment of the present invention.
  • FIG. 1 is a schematic diagram of the architecture of a wireless communication network, such as the wireless communication network 100 shown in FIG. 1.
  • the wireless communication network 100 includes a plurality of base stations 110 and other network entities for supporting a number of uses.
  • the device 120 communicates.
  • the base station 110 may be an eNodeB in an LTE system or an LTE subsequent evolution system.
  • One base station 110 may support/manage one or more cells, and when the UE 120 needs to communicate with the network, it will select a cell to initiate access.
  • the UE 120 may also be referred to as a mobile terminal (MT), a mobile station (MS), or the like, and may communicate with one or more core networks via a Radio Access Network (RAN).
  • MT mobile terminal
  • MS mobile station
  • RAN Radio Access Network
  • the core network device 130 is connected to one or more base stations 110, and the core network device 130 includes a Mobility Management Entity (MME).
  • MME Mobility Management Entity
  • Spectrum sharing can make full use of the vacant spectrum and improve the utilization of spectrum resources. Without loss of generality, the spectrum sharing of the GSM network and the LTE network is taken as an example for description.
  • GSM shares part of the spectrum with LTE, and GSM prefers to use shared spectrum.
  • the PDCCH is 3 symbols, and the cell identifier (Cell ID) is equal to 0.
  • Cell ID the number of LTE LTE interfered with by GSM
  • the number is 9 and 66
  • each interfered RB contains 8 REG
  • GSM interferes with the 16 REGs of LTE (each REG consists of 4 REs, the first symbol contains 2 REGs due to the presence of reference signals, and 3 REGs on the 2nd and 3rd symbols) .
  • the number of REGs interfered by GSM is as follows:
  • the resources are all REGs that are not disturbed.
  • the prior art does not consider whether the PDCCH candidate channel includes the REG that is interfered by the GSM, and is easy to divide the PDCCH.
  • the REG is interfered with by GSM, thereby reducing the performance of the PDCCH.
  • a flowchart of control information processing provided by an embodiment of the present invention includes:
  • Step 201 The eNodeB acquires interference information received by the shared spectrum.
  • the shared spectrum is a spectrum shared by the LTE-based network for use by the LTE network.
  • other networks that use the shared spectrum to the LTE network, such as GSM, UMTS, CDMA, WIMAX, television, or broadcast, interfere with the shared spectrum.
  • the eNodeB can directly obtain the interference information received by the shared spectrum, and can also obtain the interference information received by the shared spectrum through the coordination controller, and the coordination controller separately performs information interaction with the eNodeB and the base stations of the other networks.
  • the interference information received by the shared spectrum may be a Signal to Interference plus Noise Ratio (SINR) value of each resource block RB of the shared spectrum.
  • SINR Signal to Interference plus Noise Ratio
  • Step 202 The eNodeB selects a PDCCH candidate channel for the UE according to the acquired interference information, where the CCE in the PDCCH candidate channel carries downlink control information (Downlink Control Information, DCI) of the UE.
  • DCI Downlink Control Information
  • the eNodeB selects a PDCCH candidate channel for the UE according to the interference information received by the acquired shared spectrum. For a PDCCH candidate channel of different aggregation levels, the eNodeB allocates a different number of CCEs to the UE, and carries the DCI of the UE.
  • the PDCCH candidate channel may be in the PDCCH common search space or in the PDCCH-dedicated search space.
  • Step 203 The eNodeB sends the DCI to the UE.
  • the eNodeB sends the DCI to the UE through an air interface.
  • the eNodeB acquires the interference information received by the shared spectrum, selects the PDCCH candidate channel for the UE by using the acquired interference information, and sends the DCI to the UE.
  • the PDCCH candidate channel is selected for the UE by using the acquired interference information of the shared spectrum, which improves the capacity or coverage performance of the PDCCH in the shared spectrum scenario, and enhances the demodulation performance of the PDCCH.
  • the eNodeB of the LTE can perform the information exchange by the coordinating controller to obtain the interference information received by the shared spectrum.
  • the eNodeB can directly interact with the access network devices of other networks to obtain the interference information received by the shared spectrum.
  • the eNodeB acquires interference information received by the shared spectrum through the coordination controller.
  • the coordinating controller When the coordinating controller exists as an independent network element between the GSM network and the LTE network, the coordinating controller performs information interaction with the GSM base station controller (BSC) and the LTE eNodeB, respectively.
  • BSC GSM base station controller
  • LTE eNodeB LTE eNodeB
  • the eNodeB sends the cell information to the coordinating controller, so that the coordinating controller calculates the interference information received by the shared spectrum according to the cell information and the measurement report received by the coordinating controller from the BSC; the eNodeB receives the sharing sent by the coordinating controller Interference information received by the spectrum.
  • the eNodeB obtains the interference information received by the shared spectrum through the coordination controller as follows:
  • Step 301 The BSC sends a measurement report to the coordination controller, where the measurement report includes frequency occupancy status and power information of the shared spectrum.
  • the BSC can send measurement reports to the coordination controller in two ways. One is based on a time-triggered transmission strategy, that is, the measurement report is sent to the coordination controller at a fixed period; the other is based on an event-triggered (non-periodic) transmission strategy. That is, the measurement report is sent to the coordination controller when the shared frequency occupancy state changes.
  • Step 302 The eNodeB sends the cell information to the coordination controller.
  • the eNodeB sends the cell information of the eNodeB to the coordination controller.
  • the cell information includes the system bandwidth, the center frequency point number, the number of resource blocks (RBs) in the high frequency band, and the number of shared RBs in the low frequency band.
  • the foregoing cell information may be information of a cell where the UE is located.
  • the sending, by the eNodeB, the cell information to the coordinating controller may be a time-triggered transmission policy, that is, sending the measurement report to the coordinating controller at a fixed period; or may be an event-triggered (non-periodic) transmission policy.
  • Steps 301 and 302 do not have a sequence.
  • Step 303 The coordination controller calculates, according to the received measurement report and the cell information, a SINR value of GSM to LTE interference on each RB of the shared spectrum.
  • the coordination controller acquires the measurement report sent by the BSC and the cell information sent by the eNodeB, and calculates the SINR value of the GSM to LTE interference on each RB of the shared spectrum according to the received measurement report and the cell information.
  • Step 304 The eNodeB receives the SINR value of the GSM to LTE interference on each RB of the shared spectrum transmitted by the coordinating controller.
  • the coordinating controller sends the calculated SINR value of the GSM to the LTE interference on each RB of the shared spectrum to the eNodeB, that is, the eNodeB acquires the interference information received by the shared spectrum through the coordination controller.
  • the interference information received by the coordinated spectrum obtained by the coordinating controller is sent to the eNodeB, so that the eNodeB selects a PDCCH candidate channel for the UE according to the interference information, and the control channel element CCE in the PDCCH candidate channel carries the DCI of the UE, and the DCI is passed by the eNodeB through the air interface. Sent to the UE.
  • the eNodeB acquires interference information received by the shared spectrum, where the BSC sends a measurement report to the eNodeB, where the measurement report includes the shared spectrum.
  • the frequency occupancy state and power information; the eNodeB calculates the SINR value of GSM to LTE interference on each RB of the shared spectrum according to the cell information and the received measurement report.
  • the eNodeB After acquiring the interference information received by the shared spectrum, the eNodeB selects a PDCCH candidate channel for the UE according to the acquired interference information, and sends the DCI to the UE through the air interface.
  • the eNodeB has multiple implementation manners for selecting a PDCCH candidate channel for the UE according to the acquired interference information.
  • the eNodeB acquires the interfered REG set according to the interference information received by the shared spectrum, the REG set includes at least one interfered REG, and selects a PDCCH candidate channel for the UE according to the interfered REG set.
  • FIG. 4 a flowchart of selecting a PDCCH candidate channel for a UE according to acquired interference information is provided in an embodiment of the present invention.
  • Step 401 The eNodeB acquires the interfered REG set according to the acquired interference information.
  • the eNodeB obtains the interfered REG according to the acquired SINR value of the GSM to LTE interference on each RB of the shared spectrum, and the interfered REG may form a REG set, and the set includes at least one interfered REG.
  • the SINR threshold may be preset. If the SINR value of the GSM to LTE interference on a certain RB is less than the SINR threshold, the GSM has interference to the RB of the LTE; otherwise, the GSM does not interfere with the RB of the LTE. According to the interference of GSM by each RB, the eNodeB acquires the REG that is interfered by GSM.
  • Step 402 The eNodeB selects a PDCCH candidate channel for the UE, where the PDCCH candidate channel does not include the REG that is interfered by any one of the foregoing sets, and the CCE in the PDCCH candidate channel carries the DCI of the UE.
  • the eNodeB determines whether the PDCCH candidate channel includes an REG that is interfered by any one of the sets.
  • the eNodeB determines whether the CCE of the PDCCH candidate channel includes any one of the set that is interfered with the REG, and if the CCE does not include any one of the foregoing set of the interfered REG, the PDCCH candidate The channel does not include the REG that is interfered by any one of the foregoing sets, and the eNodeB may select the PDCCH candidate channel for the UE, otherwise the eNodeB does not select the PDCCH candidate channel for the UE.
  • the eNodeB determines whether the two CCEs of the PDCCH candidate channel all contain the REG that is interfered by any one of the foregoing sets, if the two CCEs do not contain any of the above-mentioned sets that are interfered.
  • REG the PDCCH candidate channel does not include any one of the foregoing set of interfered REGs, and the eNodeB may select the PDCCH candidate channel for the UE, otherwise the eNodeB does not select the PDCCH candidate channel for the UE.
  • the PDCCH candidate channel may be in the PDCCH common search space or in the PDCCH-dedicated search space.
  • the interference information received by the shared spectrum is used to select a PDCCH candidate channel that is not interfered by the UE, and the capacity or coverage performance of the PDCCH in the shared spectrum scenario can be further improved.
  • a flowchart of selecting a PDCCH candidate channel for a UE according to acquired interference information is provided.
  • Step 501 The eNodeB acquires the interfered REG set according to the acquired interference information, where the set includes at least one interfered REG.
  • Step 502 The eNodeB selects a PDCCH candidate channel for the UE, where the number of the interfered REGs included in the PDCCH candidate channel is less than a preset threshold, and the CCE in the PDCCH candidate channel carries the DCI of the UE.
  • the eNodeB acquires the interfered REG set according to the SINR value of the GSM to LTE interference on each RB of the acquired shared spectrum.
  • the eNodeB counts the number of interfered REGs included in the PDCCH candidate channel.
  • the eNodeB selects the PDCCH candidate channel for the UE; or if the number of the interfered REGs included in the PDCCH candidate channel is greater than a preset
  • the number of thresholds the eNodeB does not select the PDCCH candidate channel for the UE; and the case where the number of interfered REGs included in the PDCCH candidate channel is equal to a preset number of thresholds is not limited.
  • the eNodeB first sets the interference counter N Disturbed REG to 0 for the PDCCH candidate channel of the UE.
  • the eNodeB traverses the CCE included in the PDCCH candidate channel. If the REG included in the CCE belongs to the set of interfered REGs, the interference counter N Disturbed REG is incremented by one.
  • N DisturbedREG PDCCH candidate channel if the N DisturbedREG ⁇ N ThREG, compared to the UE selects the channel PDCCH candidate, if N DisturbedREG> N ThREG, no PDCCH for the UE select the candidate channel,
  • the eNodeB acquires the interfered REG set according to the acquired interference information, and the eNodeB selects a PDCCH candidate channel for the UE, where the number of the interfered REGs included in the PDCCH candidate channel is less than a preset threshold and the PDCCH candidate channel includes The number of disturbed REGs is the smallest.
  • the eNodeB may obtain the value of the N Disturbed REG of the multiple PDCCH candidate channels. If the number of the interfered REGs included in the multiple PDCCH candidate channels is less than the preset threshold, the eNodeB may select the interfered REG included in the UE. The smallest number of PDCCH candidate channels.
  • FIG. 6 a flowchart of selecting a PDCCH candidate channel for a UE according to acquired interference information is provided by an embodiment of the present invention.
  • Step 601 The eNodeB acquires the interfered REG set according to the acquired interference information, and calculates an average SINR of each interfered REG in the set.
  • Step 602 The eNodeB selects a PDCCH candidate channel for the UE, and the interference quantity of the interfered REG included in the PDCCH candidate channel is smaller than a preset interference quantity threshold, and the CCE in the PDCCH candidate channel carries the DCI of the UE.
  • the eNodeB acquires the interfered REG according to the acquired SINR value of the GSM to LTE interference on each RB of the shared spectrum, and calculates an average SINR of each interfered REG.
  • the eNodeB calculates the PDCCH candidate channel according to the average SINR of the interfered REG The amount of interference.
  • the eNodeB selects the PDCCH candidate channel for the UE; or if the interference amount of the PDCCH candidate channel is greater than the preset interference threshold, the eNodeB does not select the UE.
  • the PDCCH candidate channel is not limited to the case where the interference amount of the PDCCH candidate channel is equal to the preset interference amount threshold.
  • the eNodeB calculates the interference amount of the PDCCH candidate channel, and the calculation formula is Where n REG represents the total number of interfered REGs included in the PDCCH candidate channel.
  • the PDCCH candidate channel is selected for the UE, and if the interference amount S n of the PDCCH candidate channel satisfies S n >S ThREG , the UE is not selected.
  • the PDCCH candidate channel If the interference amount S n of the PDCCH candidate channel satisfies S n ⁇ S ThREG , the PDCCH candidate channel is selected for the UE, and if the interference amount S n of the PDCCH candidate channel satisfies S n >S ThREG , the UE is not selected.
  • the PDCCH candidate channel is not selected.
  • the interference of the REG is smaller than the PDCCH candidate channel of the preset interference threshold, which improves the capacity or coverage performance of the PDCCH in the shared spectrum scenario.
  • the algorithm complexity is increased compared to the PDCCH candidate channel that the UE selects to include the number of interfered REGs less than the preset number of thresholds, the robustness of the algorithm is further improved, and the PDCCH candidate channel selection success rate is further improved.
  • the eNodeB acquires the interfered REG set according to the acquired interference information, and the eNodeB selects a PDCCH candidate channel for the UE, where the interference quantity S n of the PDCCH candidate channel satisfies S n ⁇ S ThREG and the interference quantity S n of the PDCCH candidate channel The smallest.
  • the methods described in Figures 4, 5 and 6 are also the same when the shared spectrum is not disturbed. Be applicable.
  • the eNodeB acquires the interfered REG set according to the interference information received by the shared spectrum. If the shared spectrum is not interfered, the set is an empty set.
  • FIG. 7 is a structural diagram of a base station according to an embodiment of the present invention.
  • the eNodeB is a base station in LTE.
  • the base station 70 is configured to perform the method in FIG. 2, FIG. 3, FIG. 4, FIG. 5 or FIG. 6, and includes: a network interface unit 701, a processing unit 702, and a transceiver unit 703.
  • the network interface unit 701 is configured to obtain interference information that is shared by the shared spectrum, and the shared spectrum is shared by the network different from the LTE to the spectrum used by the LTE, and the network different from the LTE may be GSM, UMTS, CDMA, WIMAX, television, or broadcast. Waiting for the network.
  • the processing unit 702 is configured to select a PDCCH candidate channel for the UE according to the interference information received by the shared spectrum acquired by the network interface unit 701, where the CCE in the PDCCH candidate channel carries the DCI of the UE.
  • the PDCCH candidate channel may be located in the PDCCH common search space or in the PDCCH-specific search space.
  • the transceiver unit 703 is configured to send the DCI to the UE by using an air interface.
  • the eNodeB can perform information interaction with the coordinating controller through the network interface unit 701, and obtain interference information received by the shared spectrum from the coordinating controller; or the eNodeB can access the access network of the LTE-independent network through the network interface unit 701.
  • the device exchanges information and obtains interference information that is shared by the shared spectrum.
  • the eNodeB sends the cell information to the coordinating controller through the network interface unit 701, so that the coordinating controller calculates the shared spectrum according to the cell information and the measurement report received by the coordinating controller from the BSC.
  • the interference information received by the eNodeB through the network interface unit 701 is received by the coordination controller.
  • the interference information received by the shared spectrum may be the SINR value of the interference on each resource block RB of the shared spectrum.
  • the processing of the eNodeB is similar to that of the GSM and LTE spectrum sharing scenarios, and is not described here.
  • the processing unit 702 selects the PDCCH candidate channel for the UE according to the acquired interference information, and includes: acquiring the interfered REG set according to the interference information received by the shared spectrum, where the REG set includes at least one The interfered REG, and selects a PDCCH candidate channel for the UE according to the interfered REG set.
  • the processing unit 702 has multiple implementations for selecting a PDCCH candidate channel for the UE according to the interfered REG set.
  • the processing unit 702 selects a PDCCH candidate channel for the UE according to the interfered REG set, where the PDCCH candidate channel does not include the REG that is interfered by any one of the foregoing sets.
  • the processing unit 702 selects a PDCCH candidate channel for the UE according to the interfered REG set, where the number of the interfered REGs included in the PDCCH candidate channel is less than a preset number threshold.
  • the processing unit 702 selects, according to the interfered REG set, a PDCCH candidate channel, where the number of the interfered REGs included in the PDCCH candidate channel is less than a preset threshold, and the interfered REG included in the PDCCH candidate channel The smallest number.
  • the processing unit 702 selects the PDCCH candidate channel for the UE according to the acquired interference information, and includes: acquiring the interfered REG set according to the interference information received by the shared spectrum, the REG The set includes at least one interfered REG, and calculates an average SINR of each interfered REG in the REG set, and selects a PDCCH candidate channel for the UE according to an average SINR of each interfered REG in the REG set.
  • selecting the PDCCH candidate channel according to the average SINR of each of the interfered REGs in the REG set includes: the interference amount of the interfered REG included in the PDCCH candidate channel is less than a preset interference amount threshold.
  • the detailed processing of the processing unit 702 for selecting the PDCCH candidate channel for the UE may refer to the method described in FIG. 4, FIG. 5 or FIG.
  • the network interface unit may be a network interface
  • the processing unit may be a processor
  • the transceiver unit may be a transceiver.
  • FIG. 8 a base station structure diagram is provided in the embodiment of the present invention.
  • the base station 80 is configured to perform the method of the base station in FIG. 2, FIG. 3, FIG. 4, FIG. 5 or FIG. 6, and includes: a network interface 801, a processor 802, and a transceiver 803.
  • the eNodeB acquires the interference information received by the shared spectrum, selects the PDCCH candidate channel for the UE by using the acquired interference information, and sends the DCI to the UE.
  • the interference information received by the acquired shared spectrum is used to select a PDCCH candidate channel for the UE, which improves the capacity or coverage performance of the PDCCH in the shared spectrum scenario.
  • FIG. 9 a structural diagram of a coordination controller according to an embodiment of the present invention is provided.
  • a network shared spectrum that is different from LTE is used by the LTE network.
  • the coordinated controller can separately exchange information with the LTE-independent network and LTE to obtain interference information of the shared spectrum. So that the LTE eNodeB selects a PDCCH candidate channel for the UE according to the interference information.
  • Networks other than LTE include networks such as GSM, UMTS, CDMA, WIMAX, television, or broadcast.
  • the coordination controller 90 includes a network interface unit 901 and a processing unit 902.
  • the coordination controller 90 can perform the method of coordinating the controller of FIG.
  • the processing unit 902 is configured to acquire interference information received by the shared spectrum, where the shared spectrum is different from the spectrum used by the LTE-based network to be used by the LTE;
  • the network interface unit 901 is configured to send the interference information acquired by the processing unit 902 to the eNodeB.
  • the network interface unit 901 is configured to receive the cell information sent by the eNodeB, the network interface unit 901 is further configured to receive the measurement report sent by the BSC, and the processing unit 902 is configured to use the network interface unit.
  • the received cell information and the measurement report of 901 calculate interference information received by the shared spectrum.
  • the processing unit 902 is configured to receive cell information according to the network interface unit 901. And the measurement report, calculating the SINR value of the interference on each resource block RB of the shared spectrum.
  • the network interface unit may be a network interface
  • the processing unit may be a processor.
  • FIG. 10 a coordination controller structure diagram provided by an embodiment of the present invention is provided.
  • the coordination controller 100 is configured to execute the method for coordinating the controller in FIG. 3, including: a network interface 1001 and a processor 1002.
  • An embodiment of the present invention provides a system for controlling information processing, including a base station as shown in FIG. 7 and a coordination controller as shown in FIG. 9, for performing FIG. 2, FIG. 3, FIG. 4, FIG. 5 or FIG. Medium base station and method of coordinating controllers.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of cells is only a logical function division.
  • multiple units or components may be combined or integrated.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, or an electrical, mechanical or other form of connection.
  • the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • 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 computer. This is exemplified by, but not limited to, computer readable media or other optical disk storage, magnetic disk storage media or other magnetic storage device, or can be used to carry or store desired program code in the form of an instruction or data structure and can be accessed by a computer. Any other medium.

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

Abstract

L'invention concerne un procédé, un appareil et un système de traitement d'informations de commande. Lorsqu'un brouillage existe dans un spectre de fréquences partagé, un nœud B évolué (eNB) acquiert des informations concernant le brouillage subi par le spectre de fréquences partagé et sélectionne un canal PDCCH candidat pour un équipement utilisateur selon les informations de brouillage, une CCE dans le canal PDCCH candidat portant des informations de commande de liaison descendante concernant l'UE et envoyant les informations de commande de liaison descendante à l'UE.
PCT/CN2014/091248 2014-11-17 2014-11-17 Procédé, appareil et système de traitement d'informations de commande WO2016077950A1 (fr)

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CN201480002115.2A CN105874836B (zh) 2014-11-17 2014-11-17 一种控制信息处理的方法、装置和系统

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