WO2012062226A2 - 一种干扰处理方法与装置 - Google Patents
一种干扰处理方法与装置 Download PDFInfo
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- WO2012062226A2 WO2012062226A2 PCT/CN2012/070223 CN2012070223W WO2012062226A2 WO 2012062226 A2 WO2012062226 A2 WO 2012062226A2 CN 2012070223 W CN2012070223 W CN 2012070223W WO 2012062226 A2 WO2012062226 A2 WO 2012062226A2
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- base station
- cell
- configuration information
- location
- control channel
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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
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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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
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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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
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0058—Allocation criteria
- H04L5/0073—Allocation arrangements that take into account other cell interferences
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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
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0092—Indication of how the channel is divided
-
- 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
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
- H04L5/1469—Two-way operation using the same type of signal, i.e. duplex using time-sharing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/27—Control channels or signalling for resource management between access points
Definitions
- the present invention claims the priority of a Chinese patent application filed on November 11, 2010 by the Chinese Patent Office, Application No. 201010540334.X, entitled “Interference Processing Method and Apparatus", The entire contents are incorporated herein by reference.
- the present invention relates to the field of wireless communication technologies, and in particular, to an interference processing method and apparatus.
- a downlink (DL, Down link) frequency band and an uplink (UL, Up link) frequency band usually use the same bandwidth, and the traffic volume of the DL frequency band usually needs to be used.
- the traffic volume of the UL band is larger than that of the UL band, so that some UL resources of the UL band are relatively idle.
- the usage rate of the UL subframe is lower than that of the DL subframe, and the UL resource is redundant.
- part of the UL access link resources of the FDD system can also be used as a DL access link or a wireless backhaul link of a Time Division Duplex (TDD) system, thereby increasing the FDD UL frequency band. Utilization rate.
- TDD Time Division Duplex
- the base station that provides the FDD UL resource sends the uplink control signaling on the uplink blank subframe, and the uplink control signaling is sent to the downlink control channel of the downlink subframe of the adjacent base station in the FDD UL frequency band.
- the reception of the order causes interference.
- the base station using the TDD access technology may also provide a blank uplink subframe.
- the uplink control signaling is sent on the blank uplink subframe, and the uplink control signaling sends interference to the downlink control channel signaling of the downlink subframe of the TDD frequency band of the neighboring base station.
- the present invention provides an interference processing method and apparatus for solving interference problems of signaling in uplink and downlink control channels between adjacent base stations.
- a method of interference processing including:
- the user terminal UE receives the cell uplink control channel configuration information of the neighboring base station sent by the serving base station, where the uplink control channel configuration information includes the physical uplink control channel PUCCH configuration information or the physical random access channel PRACH configuration of the cell in the neighboring base station.
- Information or channel sounding reference symbol Sounding RS configuration information includes the physical uplink control channel PUCCH configuration information or the physical random access channel PRACH configuration of the cell in the neighboring base station.
- Interference cancellation is performed according to the determined location of the interference.
- Another interference handling method including:
- the serving base station receives the cell configuration information in the neighboring base station, where the cell configuration information in the neighboring base station includes the uplink control channel configuration information or the downlink control channel configuration information of the cell in the neighboring base station or the frequency domain or time domain configuration information of the interference. ;
- the resource overlapping portion of the configuration information of the cell in the neighboring base station is allocated to the serving base station.
- an interference processing apparatus including:
- a transmission module configured to receive cell uplink control channel configuration information in a neighboring base station sent by the serving base station, where the uplink control channel configuration information includes a physical uplink of the cell in the neighboring base station Control channel PUCCH configuration information or physical random access channel PRACH configuration information or channel sounding reference symbol Sounding RS configuration information;
- a determining module configured to determine, according to the configuration information received by the transmission module, a location where the serving base station is interfered by the neighboring base station;
- a processing module configured to perform interference cancellation according to the interference location determined by the determining module.
- another interference processing apparatus including:
- a transceiver module configured to receive cell configuration information in a neighboring base station, where cell configuration information in the neighboring base station includes uplink control channel configuration information or downlink control channel configuration information of the cell in the neighboring base station, or frequency domain time of interference Domain configuration information;
- an allocating module configured to determine, according to the cell configuration information in the neighboring base station, and the configuration information of the cell in the serving base station, to perform resource allocation, where the resource allocation includes not using the cell in the serving base station
- the resource overlapping portion in the configuration information of the cell in the neighboring base station is allocated to the serving base station.
- the embodiment of the present invention provides an interference processing method, where the user terminal UE receives the cell uplink control channel configuration information of the neighboring base station sent by the serving base station, and the UE determines, according to the configuration information, the location of the serving base station that is interfered by the neighboring base station. Interference cancellation is performed based on the location. Therefore, when the neighboring base station sends the uplink control signaling, the interference of the uplink control signaling in the uplink control channel and the downlink control command received in the downlink control channel corresponding to the serving base station is eliminated.
- the uplink control signaling in the uplink control channel can be cancelled, and the downlink control signaling received in the downlink control signal of the serving base station is cancelled.
- the downlink control signaling in the downlink control channel of the neighboring base station at the same frequency or adjacent frequency as the serving base station is cancelled, and the interference received by the uplink control signaling in the uplink control channel of the serving base station is cancelled.
- FIG. 1 is a schematic diagram of an application scenario in which a partial subframe of an FDD UL band is used for downlink subframe transmission according to an embodiment of the present invention
- FIG. 2 is a schematic diagram of an application scenario in which another FDD UL band partial subframe is used for downlink transmission according to an embodiment of the present invention
- FIG. 3 is a schematic diagram of a scenario for applying a sub-frame of a FDD UL resource in a downlink transmission according to an embodiment of the present disclosure
- FIG. 4 is a schematic diagram of another application scenario of using a sub-frame of a FDD UL resource in a downlink transmission according to an embodiment of the present disclosure
- FIG. 5 is a schematic diagram of another application scenario of using a sub-frame of a FDD UL resource in a downlink transmission according to an embodiment of the present disclosure
- 6a is a schematic diagram of an application scenario of a sub-frame using a FDD UL resource in downlink transmission according to an embodiment of the present invention
- 6b is a schematic diagram of an application scenario of using a partial FDD UL resource sub-frame for downlink transmission according to an embodiment of the present disclosure
- FIG. 7 is a schematic diagram of an application scenario for downlink transmission using downlink subframes of TDD for downlink transmission according to an embodiment of the present invention.
- FIG. 8 is a schematic diagram of an application scenario of using a sub-frame of a FDD UL resource for downlink transmission according to an embodiment of the present disclosure
- FIG. 9 is a schematic diagram of another application scenario of using a sub-frame of a FDD UL resource in a downlink transmission according to an embodiment of the present disclosure.
- FIG. 10 is a schematic diagram of an application scenario of using a sub-frame of an FDD UL resource for downlink transmission according to an embodiment of the present disclosure
- FIG. 10b is a schematic diagram of another application scenario of a downlink subframe for transmitting FDD UL resources according to an embodiment of the present disclosure
- FIG. 11 is a schematic diagram of an application scenario of using a sub-frame of a FDD UL resource for downlink transmission according to an embodiment of the present disclosure
- Figure lib is a schematic diagram of another application scenario of using a sub-frame of a FDD UL resource for downlink transmission in the embodiment of the present invention.
- FIG. 12 is an application scenario of downlink transmission using an uplink subframe of TDD for downlink transmission in the implementation of the present invention.
- FIG. 13 is a schematic flowchart diagram of an interference processing method according to an embodiment of the present invention.
- FIG. 14 is a schematic flowchart diagram of an interference processing method according to an embodiment of the present invention.
- FIG. 15 is a schematic flowchart diagram of an interference processing method according to an embodiment of the present invention.
- 16 is a schematic flowchart of an interference processing method according to an embodiment of the present invention.
- FIG. 17 is a schematic flowchart diagram of an interference processing method according to an embodiment of the present invention.
- FIG. 18 is a schematic structural diagram of an interference processing method according to an embodiment of the present invention
- FIG. 19 is a schematic structural diagram of an interference processing method according to an embodiment of the present invention
- FIG. 20 is a schematic flowchart diagram of an interference processing method according to an embodiment of the present invention.
- 20a is a schematic flowchart diagram of an interference processing method according to an embodiment of the present invention.
- 21 is a schematic structural diagram of an interference processing apparatus according to an embodiment of the present invention.
- FIG. 22 is a schematic structural diagram of another interference processing apparatus according to an embodiment of the present invention.
- FIG. 23 is a schematic structural diagram of another interference processing apparatus according to an embodiment of the present invention.
- FIG. 1 An embodiment.
- General techniques in the art based on embodiments in the present invention All other embodiments obtained by a person without creative efforts are within the scope of the present invention.
- the heterogeneous scenario is similar to the heterogeneous scenario.
- the heterogeneous scenario is that the low-power nodes are placed in the coverage area of the macro base station to form heterogeneous heterogeneous nodes. system.
- the Low Power Node includes a Micro Cell, a Pico Cell, an RRH (Remote Radio Head), a Relay Node (RN), or a Femto (a femtocell, usually referred to as a home base station).
- LPN Low Power Node
- RRH Remote Radio Head
- RN Relay Node
- Femto a femtocell, usually referred to as a home base station.
- heterogeneous scenarios include, but are not limited to, those enumerated in the embodiments of the present invention.
- the embodiment of the present invention is described by taking a macro cell and a micro cell as an example. FIG.
- FIG. 1 is a schematic diagram of an application scenario in which a sub-frame of an FDD UL band is used for downlink subframe transmission according to an embodiment of the present invention.
- FIG. 2 is a schematic diagram of an application scenario in which another FDD UL band partial subframe is used for downlink transmission according to an embodiment of the present invention, where the scenario is a non-TDD compatible mode application scenario, and
- FIG. 3 is an embodiment of the present invention.
- FIG. 4 is a schematic diagram of an application scenario of a sub-frame using a FDD UL resource in a downlink transmission
- FIG. 4 is a schematic diagram of an application scenario of a sub-frame using an FDD UL resource in a downlink transmission according to an embodiment of the present disclosure.
- FIG. 5 is a schematic diagram of another application scenario of a downlink transmission using a sub-frame of an FDD UL resource in the embodiment of the present invention, where the scenario is an application scenario of the TDD-compatible mode, and FIG. 6a is an embodiment of the present invention.
- FIG. 6a is an embodiment of the present invention.
- FIG. 6b is another embodiment of the present invention.
- the access link of the macro cell is:
- UL (from MUE to macro cell;): Uses some sub-frames in the UL band of FDD, as shown by the slash sub-frame of the FDD UL band in the figure.
- the micro cell has two access links: One is the FDD access link, and the FDD access link is configured by the system.
- the DL band of FDD is used, as shown by the white sub-frame of the FDD DL band in the figure.
- UL (from PUE to microcell): Uses some sub-frames in the UL band of FDD, as shown by the slash sub-frames in the FDD UL band in the figure.
- the other is the TDD access link, which uses the resources on the FDD UL.
- DL from micro cell to PUE: A partial subframe of the UL band using FDD, as shown by the black dot grid subframe of the FDD UL band in the figure.
- UL (from PUE to microcell): Uses some sub-frames in the UL band of FDD, as shown by the slash sub-frames in the FDD UL band in the figure.
- uplink control resources may be reserved: for example, a Physical Uplink Control Channel (PUCCH) resource, or a Physical Random Access Channel (PRACH) Resource, or channel sounding reference symbol Sounding RS resource.
- PUCCH Physical Uplink Control Channel
- PRACH Physical Random Access Channel
- channel sounding reference symbol Sounding RS resource channel sounding reference symbol Sounding RS resource.
- the edge of the uplink frequency band of the blank subframe in FIG. 1 to FIG. 6 reserves the PUCCH resource, and the PUCCH resource can be used for the ACK/NACK feedback of the UE and/or the CQI (Channel Quality). Indicator) Feedback.
- the reservation of other resources is similar to PUCCH, except that the location of resource reservation is different.
- FIG. 7 is a schematic diagram of an application scenario for downlink transmission using an uplink subframe of TDD according to an embodiment of the present invention.
- the scenario uses a wireless access mode of a TDD system, and the details are as follows:
- the access link of the macro base station is:
- TDD downlink subframe The TDD downlink subframe is shown in the black box;
- the TDD uplink subframe is shown by the shaded hatching.
- Uplink blank subframe Only the uplink control channel is sent on the uplink blank subframe, and no data traffic is sent.
- the resources sent by the uplink control channel include: at least one of a PUCCH resource, a PRACH resource, a Sounding RS resource, or a PRACH resource. Upstream band in a blank subframe
- the edge of the PUCCH resource is reserved, and the PUCCH resource can be used for ACK/NACK feedback and/or CQI feedback of the UE.
- the reservation of other resources is similar to PUCCH, except that the location of resource reservation is different.
- the access link of the micro base station is:
- TDD downlink subframe The TDD downlink subframe is shown in the black box;
- the TDD uplink subframe is shown by the shaded hatching. lose.
- FIG. 8 is a schematic diagram of an application scenario of a sub-frame for using a FDD UL resource in a downlink transmission according to an embodiment of the present disclosure, where the scenario is a scenario in which an uplink control channel of the same frequency band is transmitted to a downlink control channel, and the scenario is a TDD compatible mode.
- FIG. 9 is a schematic diagram of another application scenario of using a sub-frame of an FDD UL resource in a downlink transmission according to an embodiment of the present invention.
- the scenario is a non-TDD compatible mode, and the application scenario of the uplink control channel transmission of the same frequency band to the downlink control channel interference FIG.
- FIG. 10 is a schematic diagram of an application scenario in which a sub-frame of an FDD UL resource is used for downlink transmission in the embodiment of the present invention
- FIG. 10b is a schematic diagram of an application scenario of using a sub-frame of an FDD UL resource in another downlink transmission in the embodiment of the present invention
- 10a and 10b are schematic diagrams of application scenarios of downlink control channel interference of neighboring base stations in the transmission of uplink control channels of adjacent frequency bands in a TDD-compatible manner
- FIG. 11a is a downlink transmission using FDD UL resources according to an embodiment of the present invention
- Schematic diagram of an application scenario of a partial subframe, and Figure lib is another downlink in the embodiment of the present invention.
- FIG. 12 is a schematic diagram of an application scenario in which a sub-frame of an FDD UL resource is used for transmission, and 11a and lib are downlink control channel interferences of a neighboring base station in a non-TDD compatible manner.
- Another application scenario in which the downlink transmission uses the uplink subframe of the TDD for downlink transmission and the application scenario where the transmission of the uplink control channel interferes with the downlink control channel of the neighboring base station.
- the interference situation of the uplink control channel of the macro base station to the downlink control channel of the micro base station is further given, and the small black frame is a schematic diagram of the interference position.
- the uplink control channel in FIG. 8 to FIG. 12 is a physical uplink control channel PUCCH.
- the downlink control channel is an example of a Physical Downlink Control Channel (PDCCH).
- the interference of the other uplink control channel (PRACH, Sounding RS) on the downlink control channel (PDCCH, CRS, synchronization channel, broadcast channel) or the interference of the downlink control channel to the uplink control channel is similar to the processing of PUCCH and PDCCH interference, except that The location of the interference is different, the processing method is exactly the same, it is not here - repeat.
- some uplink subframes of the FDD UL band or partial uplink subframe resources of the TDD system may be used for TDD.
- the DL accesses the link resources, thereby improving the FDD UL frequency band utilization or realizing different uplink and downlink configurations of the TDD system in different regions.
- signaling on some uplink subframes or TDD partial uplink subframes in the FDD UL band may interfere with DL signaling reception on the FDD UL band of the neighboring base station or signaling reception of the DL on the TDD band.
- the signaling of some uplink subframes in the FDD UL band of the base station may interfere with the DL signaling reception on the FDD UL band of the base station.
- the neighboring base station takes the macro base station as an example, and the serving base station uses the micro base station as an example.
- the application scenarios of the method include, but are not limited to, those enumerated in the embodiments of the present invention.
- FIG. 13 is a schematic flowchart of an interference processing method according to an embodiment of the present invention, where the embodiment includes:
- the user terminal UE receives the cell uplink control channel configuration information of the neighboring base station sent by the serving base station, where the uplink control channel configuration information includes the physical uplink control channel PUCCH configuration information or the physical random access channel of the cell in the neighboring base station.
- the UE determines, according to the configuration information, a location where the serving base station is interfered by the neighboring base station;
- An embodiment of the present invention provides an interference processing method, where a user terminal UE receives a serving base station.
- the cell uplink control channel configuration information is sent by the neighboring base station, and the UE determines, according to the configuration information, a location where the serving base station is interfered by the neighboring base station, and performs interference cancellation according to the location. Therefore, when the neighboring base station sends the uplink control signaling, the interference of the uplink control signaling in the uplink control channel and the downlink control command received in the downlink control channel corresponding to the serving base station is eliminated.
- the uplink control signaling in the uplink control channel can be cancelled, and the downlink control signaling received in the downlink control signal of the serving base station is cancelled.
- the downlink control signaling in the downlink control channel of the neighboring base station at the same frequency or adjacent frequency as the serving base station is cancelled, and the interference received by the uplink control signaling in the uplink control channel of the serving base station is cancelled.
- FIG. 14 is another interference processing method according to an embodiment of the present invention, including:
- the macro base station sends, to the micro base station, cell uplink control channel configuration information in the macro base station.
- the uplink control channel configuration information may include physical uplink control channel (PUCCH) configuration information or physical random access channel (PRACH) configuration information or channel sounding reference symbol (Sounding RS) configuration information of a cell in the macro base station.
- PUCCH physical uplink control channel
- PRACH physical random access channel
- Sounding RS channel sounding reference symbol
- the PUCCH configuration information includes:
- the location of the uplink control resource is used to determine the location of the resource block occupied by the PUCCH.
- a cyclic shift sequence and an orthogonal code sequence of the uplink control resource are used to determine a resource code of the PUCCH.
- the offset of the uplink control channel is used to determine the location of the resource occupied by the PUCCH in the resource block.
- the PRACH configuration information includes:
- the configuration index of the PRACH is used to determine the location of the resource block occupied by the time domain of the PRACH in one radio frame.
- the frequency domain offset of the PRACH is used to determine the location of the frequency domain of the PRACH.
- the configuration of the PRACH access preamble is used to determine the code for initiating random access.
- Sounding RS configuration information includes:
- the micro base station sends, to the UE, cell uplink control channel configuration information in the macro base station.
- the configuration information may be sent in a broadcast manner or in a dedicated signaling manner.
- micro base station broadcasts neighbor base station configuration information in broadcast, it can be in SIB (System
- System Message Block indicates the applicable version or applicable, such as 3GPP Release 10 or 3GPP Release 11 or 3GPP Release 12.
- Applicable conditions refer to specific frequency bands or sub-frames that determine the information for which interference cancellation is transmitted, such as in the UL band or TDD subframe.
- the base station If the micro base station transmits neighboring base station configuration information, such as an RRC reconfiguration message, through radio resource control (RRC) dedicated signaling, the base station selects UE-specific signaling to transmit according to the capability of the UE.
- RRC radio resource control
- the UE determines, according to the received uplink control channel configuration information of the cell in the macro base station, the location where the micro base station is interfered by the macro base station.
- the location of the interference includes an overlapping portion of a location of a cell PUCCH resource in the neighboring base station and a downlink control channel resource location of a cell in the serving base station.
- the determining, by the UE, the location of the serving base station that is interfered by the neighboring base station according to the configuration information includes:
- the location of the interference includes a location of a cell PRACH resource in the neighboring base station and a cell downlink control in the serving base station The overlapping portion of the channel resource location.
- the determining, by the UE, the location of the serving base station that is interfered by the neighboring base station according to the configuration information includes:
- the UE Acquiring, by the UE, the location of the cell PRACH resource in the neighboring base station according to the configuration index and the frequency domain offset in the PRACH configuration information of the cell in the neighboring base station, according to the cell PRACH resource in the neighboring base station
- the location and the location of the cell downlink control channel resource in the serving base station determine the location of the interference.
- the location of the interference includes an overlapping portion of the location of the Sounding RS resource of the cell in the neighboring base station and the downlink control channel resource location of the cell in the serving base station.
- Determining, by the UE, the location of the serving base station that is interfered by the neighboring base station according to the configuration information including:
- the location of the sounding RS resource of the cell in the neighboring base station and the location of the cell downlink control channel resource in the serving base station determine the location of the interference.
- the PUCCH transmitted on the subframes 0, 1, 5, and 6 in the FDD UL band of the macro base station occupies the resources of the sideband of the band (ie, the shaded portion of the upper and lower edges of the blank frame in the figure) and
- the PDCCH of the downlink subframes 0, 1, 5, and 6 in the FDD UL band in the micro base station ie, the mesh sideband to the left of the subframe in the figure
- the black matrix of the frame is the location of the interference of the PUCCH of the cell in the macro base station to the PDCCH of the cell in the micro base station, and in FIG. 8 to FIG.
- the black cell on the downlink subframe of the cell in the micro base station Part of it is a schematic diagram of the area where PUCCH and PDCCH interfere.
- the location of the interference of the PUCCH and the PDCCH may be different according to the TDD configuration, and when the uplink control channel (PUCCH, PRACH or Sounding RS) and the downlink control channel (PDCCH, CRS, synchronization)
- the uplink control channel PUCCH, PRACH or Sounding RS
- PDCH, CRS downlink control channel
- synchronization the channel or broadcast channel changes, the location of the interference is also different, but the specific interference cancellation method and principle are consistent with the present invention, and are not described as examples.
- the UE performs interference cancellation according to the determined location of the interference.
- performing interference cancellation according to the location information of the interference includes:
- the UE Obtaining, by the UE, the interference bit receiving power of the interference location according to the cyclic shift sequence and the orthogonal code sequence of the uplink control resource of the cell in the macro base station, where the UE is based on the received total signal power and the Obtaining the received power of the bit, acquiring the downlink data signal power sent by the cell in the micro base station where the UE is located, and acquiring the downlink data signal according to the downlink data signal power.
- the UE obtains interference bit receiving power of the location of the interference according to a cyclic sequence shifting sequence and an orthogonal code sequence of an uplink control resource of a cell in the macro base station, and the UE receives the interference bit from the location of the interference.
- the total signal power is subtracted from the received power of the interference bit, and the downlink data signal power sent by the micro base station where the UE is located is obtained, and the downlink data signal is obtained according to the downlink data signal power.
- performing interference cancellation according to the location information of the interference includes:
- the UE Acquiring, by the UE, the interference bit receiving power of the location of the interference according to the access preamble configuration of the PRACH of the cell in the macro base station, where the UE acquires according to the received power of the total signal and the received power of the interference bit.
- the downlink data signal power sent by the cell in the micro base station where the UE is located, and the downlink data signal is obtained according to the downlink data signal power.
- the UE acquires interference bit receiving power of the interference location according to the access preamble configuration of the PRACH of the cell in the macro base station, and the UE subtracts the interference bit received power from the received total signal power, Obtaining the next sent by the cell in the micro base station where the UE is located The data signal power is obtained, and the downlink data signal is acquired according to the downlink data signal power.
- performing interference cancellation according to the location information of the interference includes:
- the UE performs a code sequence correlation operation according to the Sounding RS code sequence of the cell in the macro base station, and acquires interference bit receiving power of the location of the interference, and the UE receives power according to the power of the received total signal and the interference bit.
- the code correlation operation is performed by using the preamble of all PRACHs to obtain the received power of the interference bit.
- performing interference cancellation according to the location information of the interference includes:
- the UE performs a code sequence correlation operation according to the Sounding RS code sequence of the cell in the macro base station, and acquires interference bit receiving power of the location of the interference, and the UE receives power according to the power of the received total signal and the interference bit.
- the UE performs code sequence correlation operation according to the Sounding RS code sequence of the cell in the macro base station, and acquires interference bit receiving power of the interference location, and the UE subtracts the above from the received total signal power.
- the interference bit of the Sounding RS receives the power, obtains the downlink data signal power sent by the micro base station where the UE is located, and acquires the downlink data signal according to the downlink data signal power.
- the UE receives the cell configuration information in the macro base station that is sent by the micro base station, and the UE determines the location of the interference according to the received macro base station configuration information, and the UE performs interference cancellation according to the determined interference position, thereby eliminating the uplink.
- Control signaling is sent to the micro base station at FDD UL
- the signaling reception of the downlink subframes in the frequency band or the TDD frequency band generates interference.
- FIG. 15 is another interference processing method according to an embodiment of the present invention.
- the macro base station sends the uplink control channel configuration information of the macro base station to the micro base station, and the micro base station performs interference avoidance according to the received configuration information, that is, the location that is not in interference.
- the neighboring base station in the embodiment of the present invention takes a macro base station as an example, and the serving base station uses a micro base station as an example.
- the application scenario of the method includes, but is not limited to, the enumeration in the embodiment of the present invention, including:
- the macro base station sends, to the micro base station, the cell uplink control channel configuration information in the macro base station.
- the configuration information includes uplink control channel configuration information or configuration information of a downlink control channel.
- the uplink control channel configuration information may include the PUCCH configuration information or the PRACH configuration information or the channel sounding reference symbol (Sounding RS) configuration information of the cell in the macro base station.
- Sounding RS channel sounding reference symbol
- the downlink control channel configuration information may include configuration information of a physical downlink control channel PDCCH or a common reference symbol CRS of a cell in the macro base station.
- the PDCCH configuration information includes:
- the time domain configuration is represented by the number of symbols per subframe occupied by the PDCCH.
- the frequency domain configuration that is, is represented by the frequency and bandwidth of the PDCCH channel.
- the CRS configuration information includes:
- the frequency and bandwidth of the CRS transmission are the frequency and bandwidth of the CRS transmission.
- the number of antennas used by the CRS is the number of antennas used by the CRS.
- the micro base station adjusts, according to the received configuration information, a resource location overlap portion in the configuration information of the cell in the micro base station and the macro base station by using resource allocation;
- the micro base station adjusts the resource overlap portion indicated by the configuration information of the cell in the micro base station and the macro base station by using the resource allocation, and includes:
- the micro base station allocates resources for the downlink control channel, and the cell in the macro base station
- the overlapping portion of the resource location in the row control channel configuration information and the resource location in the downlink control channel configuration information of the cell in the micro base station is not allocated to the downlink control channel of the cell in the micro base station.
- the micro base station adjusts the resource overlap part in the configuration information of the cell in the micro base station and the cell in the macro base station by using the resource allocation, including:
- the micro base station allocates resources for the uplink control channel, the overlapping portion of the resource location in the downlink control channel configuration information of the cell in the macro base station and the resource location in the uplink control channel configuration information of the cell in the micro base station , not allocated to the uplink control channel of the cell in the micro base station.
- the location of the PDCCH resource in the macro base station is as indicated by the shaded portion on the blank frame, and the PDCCH resource position in the micro base station may be at least the first three symbols of one subframe.
- the PUCCH part of the macro base station may be interfered by the PUCCH part of the macro base station, and the location of the interference is as shown in the black cell on the downlink subframe of the micro base station in FIG.
- the overlapping portion the small black space portion in FIG.
- the same macro base station may not overlap the PUCCH resource location of the macro base station and the PDCCH resource location of the micro base station when performing resource allocation of the PUCCH (FIG. 9).
- the small black box in the middle is assigned to the uplink control channel of the macro base station, such as PUCCH.
- the micro base station sends the adjusted configuration information to the UE.
- the micro base station adjusts the bandwidth of the PDCCH from the full bandwidth B1 to the narrower bandwidth B2, and the micro base station can notify the UE of the adjusted bandwidth B2, and then the UE performs reception of the PDCCH on the bandwidth B2.
- the configuration of the configuration information is similar to the content of the step 1402 in the embodiment shown in FIG. 14, and details are not described herein again.
- the UE receives the adjusted configuration information sent by the micro base station, and performs data reception according to the adjusted configuration information.
- the micro base station can also send the adjusted other scheduling configuration information to the UE, the UE performs data reception according to the PDCCH configuration information or other downlink scheduling configuration information.
- the PDCCH configuration information received by the UE is mainly the resource block location occupied by the PDCCH control channel, and the location of the resource block occupied by the PDCCH control channel may be represented by the frequency point of the PDCCH channel and the occupied bandwidth, and the downlink control channel occupies When the resource block location information is not delivered, the same frequency as the cell is used by default.
- the other scheduling information may also be the location of the resource block occupied by the scheduling information, and the location of the occupied resource block may also be represented by the frequency point of the resource and the occupied bandwidth, and when the optional information on the resource frequency is not delivered, By default, the same frequency as the cell is used.
- the cell configuration information of the macro base station that is sent by the macro base station to the micro base station, and the micro base station performs interference avoidance according to the received configuration information, that is, adjusts the PDCCH or CRS or the synchronization channel or the broadcast channel frequency of the cell in the local micro base station or
- the location of the time domain is used to eliminate interference with the resources of the uplink control channel of the macro base station, thereby eliminating the interference of the transmission of the uplink control signaling to the signaling reception of the downlink subframe of the micro base station in the FDD UL band or the TDD band.
- the cell configuration information in the macro base station that is sent by the macro base station to the micro base station, and the micro base station performs interference avoidance according to the received configuration information, that is, adjusts the PUCCH or PRACH or Sounding RS frequency or time domain of the cell in the local micro base station.
- the location is used to eliminate interference with the resources of the downlink control channel of the macro base station, so as to eliminate interference of the downlink control signaling to the signaling reception of the uplink subframe of the micro base station.
- the neighboring base station in the embodiment of the present invention takes a macro base station as an example, and the serving base station uses a micro base station as an example for description.
- the application scenario provided by the present invention can be applied not only to the macro base station and the micro base station of the same access technology, but also Applied between a macro base station and a micro base station that are not the same access technology.
- the adjacent base stations provided by the embodiments of the present invention may be heterogeneous networks or homogeneous networks.
- Network can be the same frequency network or an inter-frequency network.
- the embodiment shown in Fig. 16 is similar to the interference cancellation method provided by the embodiment shown in Fig. 15, except that:
- the macro base station can periodically send configuration information to the micro base station. Or
- the macro base station After detecting the interference, the macro base station sends the configuration information of the macro base station to the micro base station. Or, after the cell configuration in the macro base station is completed, the cell configuration information in the macro base station is sent to the micro base station.
- the configuration information includes the uplink control channel configuration information used for providing interference cancellation for downlink data reception by the micro base station.
- the downlink control channel configuration information is used to provide interference cancellation for the uplink reception of the micro base station.
- the macro base station sends the cell configuration information in the macro base station to the micro base station, and the micro base station performs interference avoidance according to the received configuration information, that is, adjusts the downlink control resource position or adjusts the uplink control resource position to eliminate the uplink control of the macro base station.
- the resources of the channel generate interference, thereby eliminating the transmission of the uplink control signaling, causing interference to the signaling reception of the downlink subframe of the micro base station in the FDD UL frequency band or the TDD frequency band, or the transmission of the downlink control channel of the micro base station to the uplink of the macro base station.
- the reception of the control channel produces interference.
- the micro base station and the macro base station can correctly parse the uplink and downlink control channels and the uplink and downlink reference symbol configuration information of the macro base station, but when the macro base station and the micro base station use different RATs, the micro base station cannot parse the macro base station.
- the upper control channel configuration information, or the macro base station cannot parse the control channel configuration information of the base station.
- the above interference problem also occurs between the neighboring base station and the serving base station.
- the following solutions are proposed.
- the present invention provides another method for interference processing.
- the macro base station directly or indirectly indicates to the micro base station information of the location where the interference exists, and the micro base station performs information according to the location. Interference avoidance of the control channel.
- the neighboring base station takes the macro base station as an example, and the serving base station uses the micro base station as an example for description.
- the application scenarios of the method include, but are not limited to, those enumerated in the embodiments of the present invention. Specifically include:
- the macro base station receives cell configuration information in the micro base station.
- the configuration information may include uplink and downlink frequency points, frequency band configuration information, or uplink and downlink subframe configuration information of the cell in the micro base station.
- the macro base station acquires configuration information of the cell in the macro base station, and acquires time domain and frequency domain configuration information of the micro base station interference with the macro base station according to the cell configuration information in the macro base station and the cell configuration information in the micro base station.
- the time domain and frequency domain configuration information of the interference includes time domain and frequency domain resource location information in which interference occurs or time domain and frequency domain resource configuration information in which interference occurs.
- the macro base station can obtain time domain and frequency domain configuration information of the interference of the micro base station to the base station according to a measurement or performance specification or a protocol specification or a default manner.
- the micro base station When the UE under the macro base station performs interference detection on the micro base station, the micro base station notifies the macro base station of the frequency of the operation and the uplink and downlink ratio information, and the UE under the macro base station or the macro base station performs interference detection on the micro base station, and the UE
- the measurement result of the interference detection is reported to the macro base station, and the macro base station determines the location of the frequency domain or the time domain of the micro base station interference to the micro base station according to the configuration information of the micro base station reported by the base station or the UE.
- the frequency domain of the interference of the micro base station is set according to the interference threshold, and the frequency band that satisfies the interference threshold is the frequency domain position of the interference;
- the time domain of the interference of the micro base station is determined according to the time slot in which the micro base station performs downlink data transmission.
- the method for determining an interference frequency domain according to a performance specification, a protocol specification, or a default manner includes: specifying a frequency domain range of a value.
- the frequency domain of the micro base station and the frequency domain of the macro base station overlap in the set frequency domain, the overlapping portion is considered to be the interference frequency domain portion.
- the frequency domain of the micro base station and the frequency domain of the macro base station overlap in the set frequency domain, the overlapping portion is considered to be the interference frequency domain portion.
- the frequency domain of the micro base station and the frequency domain of the macro base station overlap in the set frequency domain, the overlapping portion is considered to be the interference frequency domain portion.
- 5MHz or 10MHz or 30MHz and so on For example, when the frequency interval of the two base stations is within the above-set range, it is considered that there is frequency domain interference.
- the macro base station determines the interference frequency band information according to the working frequency band of the micro base station and the working frequency band of the macro base station itself, for example, in FIG.
- the macro base station determines a part of the frequency band (the frequency band of the grid shadow) as a frequency band that interferes with the micro base station.
- the macro base station notifies the information about the determined interference frequency band to the micro base station, and when the micro base station performs the configuration of the uplink or downlink control channel in the frequency band, performs interference avoidance according to the interference frequency band configuration information.
- the allocation of the uplink control channel or the allocation of the downlink control channel is performed in the frequency domain of the interference, or the data is not scheduled.
- the frequency domain configuration information of the interference is represented by a center frequency point and a frequency band manner, or by a frequency relative offset manner;
- time domain interference is also similar, as shown in Fig. 19, which is the time domain interference of the micro base station and the macro base station.
- the micro base station sends the time-frequency configuration information of the micro base station to the macro base station, for example, the time slot is used for the uplink resource configuration information and the time slot is used for the downlink resource configuration information, or the uplink and downlink ratio, or the uplink and downlink configuration mode index is given to the Acer.
- the macro base station determines the interference period information according to the working time domain configuration information of the micro base station. For example, in FIG. 19, the macro base station determines that part of the time slot (hatched portion) is a time slot that interferes with the micro base station.
- the macro base station notifies the information about the determined interference time domain to the micro base station, and when the micro base station performs the configuration of the uplink or downlink control channel on the time slot, the interference information can be considered to perform interference avoidance. That is, the allocation of the uplink control channel or the allocation of the downlink control channel is not performed in the time slot of the interference, or the data is not scheduled.
- the method of 18 is to deal with interference avoidance, no longer - repeat.
- the time domain of the interference is in the slot unit of the lms radio frame, and the time domain resources that are susceptible to interference are indicated by Bitstring or Bitmap.
- the time domain indication may be performed in units of radio frames.
- the indication of the frequency domain may be indicated by a central frequency point and a frequency band mode, or by frequency relative offsetting. 1703.
- the macro base station sends time domain and frequency domain configuration information of the macro base station to the macro base station to the micro base station.
- micro base station performs resource scheduling, adjust time domain and frequency domain configuration information that the micro base station and the macro base station have interference by using resource allocation.
- adjusting the time domain and frequency domain configuration information of the interference between the micro base station and the macro base station by using resource allocation including:
- the serving base station allocates resources for the downlink control channel
- the resource location indicated by the frequency domain or time domain configuration information of the cell interference in the neighboring base station overlaps with the cell downlink control channel resource in the serving base station or the phase
- the frequency domain or time domain resource of the neighboring base station interference is not allocated to the downlink control channel of the cell in the serving base station;
- the serving base station allocates resources for the uplink control channel
- the resource location indicated by the frequency domain or time domain configuration information of the interference of the cell in the neighboring base station is not overlapped with the cell uplink control channel resource in the serving base station.
- the frequency domain or time domain resource that is partially or interfered by the neighboring base station is not allocated to the uplink control channel of the serving base station.
- step 1401 For the configuration information of the uplink control channel and the configuration information of the downlink control channel, refer to the content of step 1401 in the embodiment shown in FIG. 14 for details of the configuration information of the uplink control channel.
- step 1501 For details of the configuration information of the downlink control channel, refer to step 1501 in the embodiment shown in FIG. The content of this will not be repeated here.
- the macro base station receives the configuration information of the micro base station, where the configuration information may include uplink and downlink frequency points, frequency band configuration information, or uplink and downlink subframe configuration information of the micro base station, and the macro base station specifies or defaults according to the measurement or performance specification or protocol.
- the method obtains configuration information, and when the micro base station performs resource scheduling, performs interference avoidance operation according to time domain and frequency domain configuration information of the macro base station to send interference, thereby eliminating uplink control channel or downlink control in the frequency domain or time domain position of the interference. Scheduling of channels or data.
- an embodiment of the present invention further provides an interference processing method, which includes:
- the serving base station receives the cell uplink control signal in the neighboring base station sent by the neighboring base station Road configuration information.
- the uplink control channel configuration information includes physical uplink control channel PUCCH configuration information or physical random access channel PRACH configuration information or channel detection reference symbol Sounding RS configuration information of the cell in the neighboring base station;
- the PUCCH configuration information includes a location of an uplink control resource, a cyclic shift sequence of an uplink control resource, and an offset of an orthogonal code sequence and a PUCCH;
- the PRACH configuration information includes a configuration index of a PRACH, a frequency domain offset of the PRACH, and a configuration of an access preamble of the PRACH;
- the Sounding RS configuration information includes a bandwidth configuration of pilot symbols and a subframe configuration of pilot symbols.
- the serving base station sends, to the UE, cell uplink control channel configuration information in the neighboring base station.
- the UE performs interference cancellation according to the uplink control channel configuration information.
- An embodiment of the present invention provides an interference processing method, where a serving base station receives a cell uplink control channel configuration information in a neighboring base station, and forwards the configuration information to the UE, so that the UE determines, according to the configuration information, that the serving base station is adjacent.
- the location of the base station interference, and interference cancellation is performed according to the location. Therefore, when the neighboring base station sends the uplink control signaling, the interference of the uplink control signaling in the uplink control channel and the downlink control command received in the downlink control channel corresponding to the serving base station are eliminated.
- FIG. 20a is another interference processing method according to an embodiment of the present invention, including:
- the serving base station receives the cell configuration information in the neighboring base station, where the cell configuration information in the neighboring base station includes the uplink control channel configuration information or the downlink control channel configuration information of the cell in the neighboring base station or the frequency domain or time domain of the interference.
- Configuration information includes the uplink control channel configuration information or the downlink control channel configuration information of the cell in the neighboring base station or the frequency domain or time domain of the interference.
- the serving base station performs resource allocation according to cell configuration information in the neighboring base station and cell configuration information in the serving base station;
- the resource allocation includes not configuring cell configuration information in the serving base station with the neighboring base station The overlapping portion of the resource locations in the middle cell configuration information is allocated to the serving base station.
- the serving base station receives the cell configuration information in the neighboring base station, and the serving base station performs resource allocation according to the cell configuration information in the neighboring base station and the cell configuration information in the serving base station, so that when the neighboring base station sends the uplink control signaling, The interference received by the uplink control signaling in the uplink control channel and the downlink control command received in the downlink control channel corresponding to the serving base station is eliminated.
- FIG. 21 is an interference processing apparatus according to an embodiment of the present invention, including:
- the transmitting module 2101 is configured to receive cell uplink control channel configuration information in a neighboring base station sent by the serving base station, where the uplink control channel configuration information includes physical uplink control channel PUCCH configuration information or physical random access of the cell in the neighboring base station Channel PRACH configuration information or channel sounding reference symbol Sounding RS configuration information.
- the determining module 2102 is configured to determine, according to the configuration information received by the transmission module, a location where the serving base station is interfered by the neighboring base station.
- the processing module 2103 is configured to perform interference cancellation according to the interference location determined by the determining module.
- the determining module of the interference processing apparatus in the embodiment of the present invention is used to:
- the determining module of the interference processing apparatus in the embodiment of the present invention is further configured to:
- Cell PUCCH configuration information in a neighboring base station receiving configuration information according to the transmission module
- the uplink control resource location and the offset, the location of the PUCCH resource of the cell in the neighboring base station, and the location of the PUCCH resource of the cell in the neighboring base station and the location of the downlink control channel resource of the cell in the serving base station The location of the disturbance. or
- processing module of the interference processing apparatus in the embodiment of the present invention is used to:
- the interference bit receiving power of the location of the interference is obtained, and acquiring a downlink data signal according to the downlink data signal power.
- acquiring the interference bit receiving power of the location of the interference according to the access preamble configuration of the cell PRACH in the neighboring base station and acquiring the location of the UE according to the received power of the total signal and the received power of the interference bit.
- the downlink data signal power sent by the cell in the serving base station acquires the downlink data signal according to the downlink data signal power.
- Performing a code sequence correlation operation according to the sounding RS code sequence of the cell in the neighboring base station acquiring interference bit receiving power of the location of the interference, acquiring the UE according to the power of the received total signal and the received power of the interference bit
- the downlink data signal power sent by the cell in the serving base station is obtained, and the downlink data signal is obtained according to the downlink data signal power.
- An embodiment of the present invention provides an interference processing apparatus, so that when a neighboring base station sends an uplink control During signaling, the interference of the uplink control signaling in the uplink control channel and the downlink control command received in the downlink control channel corresponding to the serving base station is eliminated.
- FIG. 22 is another interference processing apparatus according to an embodiment of the present invention, including:
- a transceiver module configured to receive cell configuration information in a neighboring base station, where cell configuration information in the neighboring base station includes uplink control channel configuration information or downlink control channel configuration information of the cell in the neighboring base station, or frequency domain time of interference Domain configuration information.
- an allocating module configured to determine, according to cell configuration information in the neighboring base station and configuration information of a cell in the serving base station, a resource overlap portion, where resource allocation is performed;
- the allocating module is configured to not allocate the overlapping portion of the resource in the configuration information of the cell in the serving base station and the cell in the neighboring base station to the serving base station.
- the apparatus further includes an adjustment module, configured to adjust cell configuration information in the serving base station according to cell configuration information in the neighboring base station;
- the cell configuration information in the serving base station that is adjusted by the adjustment module does not include an overlapping portion of the cell configuration information in the serving base station and the resource location in the cell configuration information in the neighboring base station.
- the transceiver module is further configured to send the cell configuration information in the serving base station that is adjusted by the adjustment module to the user terminal UE;
- allocation module of the interference processing device in the embodiment of the present invention is used to:
- the serving base station allocates resources for the downlink control channel, the resource location in the uplink control channel configuration information of the cell in the neighboring base station and the downlink control signal of the cell in the serving base station The overlapping portion of the resource locations in the channel configuration information is not allocated to the downlink control channel of the cell in the serving base station.
- the serving base station allocates resources for the uplink control channel, the overlapping portion of the resource location in the downlink control channel configuration information of the cell in the neighboring base station and the resource location in the uplink control channel configuration information of the cell in the serving base station, Not allocated to the uplink control channel of the cell in the serving base station.
- the serving base station allocates resources for the downlink control channel, the overlap between the resource location in the frequency domain or the time domain configuration information of the cell interference in the neighboring base station and the resource location in the cell downlink control channel in the serving base station is not allocated.
- An uplink control channel for a cell in the serving base station is not allocated.
- the overlapping portion of the resource location in the frequency domain or time domain configuration information of the neighboring base station and the resource location in the downlink downlink control channel configuration information in the serving base station is not allocated to the downlink control channel of the cell in the serving base station.
- the serving base station allocates resources for the uplink control channel
- the resource position in the frequency domain or time domain configuration information of the interference with the cell in the neighboring base station and the resource in the cell uplink control channel configuration information in the serving base station are not used.
- the overlapping portion of the location is not allocated to the downlink control channel of the cell in the serving base station.
- the overlapping portion of the resource location in the configuration information of the frequency domain or the time domain resource interfered by the neighboring base station and the resource location in the cell uplink control channel configuration information in the serving base station is not allocated to the uplink control channel of the serving base station.
- An embodiment of the present invention provides an interference processing apparatus, including: a transceiver module for receiving cell configuration information in a neighboring base station, where the cell configuration information in the neighboring base station includes an uplink control channel configuration of a cell in the neighboring base station
- the information or the downlink control channel configuration information or the frequency domain or the time domain configuration information of the interference is used to determine the resource overlap according to the cell configuration information in the neighboring base station and the configuration information of the cell in the serving base station, and allocate the resource allocation.
- the resource allocation includes not configuring the cell in the serving base station and the cell in the neighboring base station The resource location overlap portion is allocated to the serving base station. Therefore, when the neighboring base station sends the uplink control signaling, the interference of the uplink control signaling in the uplink control channel and the downlink control command received in the downlink control channel corresponding to the serving base station is eliminated.
- the uplink control signaling in the uplink control channel can be cancelled, and the downlink control signaling received in the downlink control signal of the serving base station is cancelled.
- the downlink control signaling in the downlink control channel of the neighboring base station at the same frequency or adjacent frequency as the serving base station is cancelled, and the interference received by the uplink control signaling in the uplink control channel of the serving base station is cancelled.
- each unit included is only divided according to functional logic, but is not limited to the foregoing division, as long as the corresponding function can be implemented;
- the specific names are also for convenience of distinguishing from each other and are not intended to limit the scope of the present invention.
- the storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
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Abstract
本发明公开了一种干扰处理方法,通过用户终端UE接收服务基站发送的相邻基站中小区上行控制信道配置信息,所述上行控制信道配置信息包括所述相邻基站中小区的物理上行控制信道PUCCH配置信息或者物理随机接入信道PRACH配置信息或者信道探测参考符号SoundingRS配置信息,所述UE根据所述配置信息确定所述服务基站受到所述相邻基站干扰的位置,并且根据所述确定干扰的位置进行干扰消除。本发明还公开了一种干扰消除装置。
Description
一种干扰处理方法与装置 本申请要求于 2010 年 11 月 11 日提交中国专利局、 申请号为 201010540334.X、发明名称为"一种干扰处理方法与装置"的中国专利申请的 优先权, 其全部内容通过引用结合在本申请中。 技术领域 本发明涉及无线通讯技术领域, 具体涉及一种干扰处理方法与装置。
背景技术 在频分双工 ( FDD, Frequency Division Duplexing ) 系统中, 一方面, 下行(DL, Down link )频段和上行( UL, Up link )频段通常使用相同的 带宽, DL频段的业务量通常要比 UL频段的业务量大, 从而导致 UL频段 的部分 UL资源相对空闲。 另一方面, 在 UL业务量和 DL业务量相匹配的 情况下, 由于 UL频谱效率比 DL频谱效率高, 使得 UL子帧的使用率比 DL子帧低, UL资源会出现冗余。 为了有效利用 UL冗余的资源, FDD系 统的部分 UL接入链路资源也可以作为时分双工 (TDD , Time Division Duplex )系统的 DL接入链路或者无线回程链路,从而提高 FDD UL频段利 用率。
当一个基站的部分 FDD UL子帧对应的相邻基站的 UL子帧被用于相 邻基站的下行数据传输时,为了该基站上 UE的下行数据传输反馈的后向兼 容性及对下行子帧上数据的灵活调度, 提供 FDD UL资源的基站会在上行 空白子帧上发送上行控制信令, 该上行控制信令的发送会对相邻基站在 FDD UL频段的下行子帧的下行控制信道信令的接收产生干扰。
为了基站上 UE 下行数据传输反馈的后向兼容性及保证对下行子帧上 数据的灵活调度, 使用 TDD接入技术的基站也可以提供空白的上行子帧,
在该空白上行子帧上发送上行控制信令, 该上行控制信令的发送会对相邻 基站的 TDD频段下行子帧的下行控制信道信令的接收产生干扰。
发明内容 本发明提供了一种干扰处理方法与装置, 用于解决相邻基站间的上下 行控制信道中信令的干扰问题。
一方面, 提供了一种干扰处理的方法, 包括:
用户终端 UE接收服务基站发送的相邻基站中小区上行控制信道配置 信息, 所述上行控制信道配置信息包括所述相邻基站中小区的物理上行控 制信道 PUCCH配置信息或者物理随机接入信道 PRACH配置信息或者信道 探测参考符号 Sounding RS配置信息;
所述 UE根据所述配置信息确定所述服务基站受到所述相邻基站干扰 的位置; 并且
根据所述确定干扰的位置进行干扰消除。
一方面, 提供了另一种干扰处理方法, 包括:
服务基站接收相邻基站中小区配置信息, 所述相邻基站中小区配置信 息包括所述相邻基站中小区的上行控制信道配置信息或下行控制信道配置 信息或干扰的频域或时域配置信息;
所述服务基站根据所述相邻基站中小区配置信息和所述服务基站中小 区的配置信息确定资源重叠部分, 进行资源分配, 所述资源分配包括不把 所述服务基站中小区与所述相邻基站中小区的配置信息中资源重叠部分分 配给所述服务基站。
另一方面, 提供了一种干扰处理装置, 包括:
传输模块, 用于接收服务基站发送的相邻基站中小区上行控制信道配 置信息, 所述上行控制信道配置信息包括所述相邻基站中小区的物理上行
控制信道 PUCCH配置信息或者物理随机接入信道 PRACH配置信息或者信 道探测参考符号 Sounding RS配置信息;
确定模块, 用于根据所述传输模块接收的所述配置信息确定所述服务 基站受到所述相邻基站干扰的位置;
处理模块, 用于根据所述确定模块确定的所述干扰位置进行干扰消除。 另一方面, 提供了另一种干扰处理装置, 包括:
收发模块, 用于接收相邻基站中小区配置信息, 所述相邻基站中小区 配置信息包括所述相邻基站中小区的上行控制信道配置信息或下行控制信 道配置信息或干扰的频域或时域配置信息;
分配模块, 用于根据所述相邻基站中小区配置信息和所述服务基站中 小区的配置信息确定资源重叠部分, 进行资源分配, 所述资源分配包括不 把所述服务基站中小区与所述相邻基站中小区的配置信息中资源重叠部分 分配给所述服务基站。
本发明实施例提供了一种干扰处理方法,用户终端 UE接收服务基站发 送的相邻基站中小区上行控制信道配置信息, UE根据所述配置信息确定 所述服务基站受到相邻基站干扰的位置, 根据所述位置进行干扰消除。 从 而当相邻基站发送上行控制信令时, 消除上行控制道中该上行控制信令的 发送与服务基站对应位置下行控制信道中下行控制令接收的干扰。
另外, 当相邻基站在与服务基站同频或邻频的位置上发送上行控制信 令时, 可以消除该上行控制信道中上行控制信令发送对于服务基站下行控 制信中下行控制信令接收干扰; 或者, 消除相邻基站在与服务基站同频或 邻频的位置上下行控制信道中下行控制信令发送对于服务基站的上行控制 信道中上行控制信令接收的干扰。
附图说明
为了更清楚地说明本发明实施例中的技术方案, 下面将对实施例描述 中所可以使用的附图作筒要介绍, 显而易见地, 下面描述中的附图仅仅是 本发明的一些实施例, 对于本领域的普通技术人员来讲, 在不付出创造性 劳动性的前提下, 还可以根据这些附图获得其他的附图。
图 1为本发明实施例中一种 FDD UL频带部分子帧被用于下行子帧传 输的应用场景示意图;
图 2为本发明实施例中另一种 FDD UL频带部分子帧被用于下行传输 的应用场景示意图;
图 3为本发明实施例中一种下行传输使用 FDD UL资源部分子帧应用 场景示意图;
图 4为本发明实施例中另一种下行传输使用 FDD UL资源部分子帧的 应用场景示意图;
图 5为本发明实施例中另一种下行传输使用 FDD UL资源部分子帧的 应用场景示意图;
图 6a为本发明实施例中一种下行传输使用 FDD UL资源部分子帧的应 用场景示意图;
图 6b为本发明实施例中另一种下行传输使用部分 FDD UL资源部分子 帧的应用场景示意图;
图 7为本发明实施例中一种下行传输使用 TDD的上行子帧进行下行传 输的应用场景图。
图 8为本发明实施例中一种下行传输使用 FDD UL资源部分子帧的应 用场景示意图;
图 9为本发明实施例中另一种下行传输使用 FDD UL资源部分子帧的 应用场景示意图;
图 10a为本发明实施例中一种下行传输使用 FDD UL资源部分子帧的 一种应用场景示意图;
图 10b为本发明实施例中另一种下行传输 FDD UL资源部分子帧的一 种应用场景示意图;
图 11a为本发明实施例中一种下行传输使用 FDD UL资源部分子帧的 应用场景示意图;
图 lib为本发明实施例中另一种下行传输使用 FDD UL资源部分子帧 的应用场景示意图;
图 12为本发明实施中另一种下行传输使用 TDD的上行子帧进行下行 传输的应用场景。
图 13为本发明实施例中一种干扰处理方法的流程示意图;
图 14为本发明实施例中一种干扰处理方法的流程示意图;
图 15为本发明实施例中一种干扰处理方法的流程示意图;
图 16为本发明实施例中一种干扰处理方法的流程示意图;
图 17为本发明实施例中一种干扰处理方法的流程示意图;
图 18为本发明实施例中一种干扰处理方法的结构示意图; 图 19为本发明实施例中一种干扰处理方法的结构示意图;
图 20为本发明实施例中一种干扰处理方法的流程示意图;
图 20a为本发明实施例中一种干扰处理方法的流程示意图;
图 21为本发明实施例中一种干扰处理装置的结构示意图;
图 22为本发明实施例中另一种干扰处理装置的结构示意图; 图 23为本发明实施例中另一种干扰处理装置的结构示意图。
具体实施方式 为了使本发明的目的、 技术方案和优点更加清楚, 下面将结合附图对 本发明作进一步地详细描述, 显然, 所描述的实施例仅仅是本发明一部份 实施例, 而不是全部的实施例。 基于本发明中的实施例, 本领域普通技术
人员在没有做出创造性劳动前提下所获得的所有其它实施例, 都属于本发 明保护的范围。
本发明以异构的场景为例, 同构的场景应用和异构场景应用类似, 其 中异构场景是指低功率节点被布放在宏基站覆盖区域内, 形成同覆盖的不 同节点类型的异构系统。 低功率节点 (LowPowerNode , LPN ) 包括微小区 (Micro Cell), 微微小区(Pico Cell) , RRH ( RemoteRadio Head )、 中继节点 ( Relay Node, RN )或 Femto (毫微蜂窝基站, 通常指家庭基站)等, 异 构的场景包括但不限于本发明实施例中所列举的。 本发明实施例以宏小区 与微小区为例进行说明, 图 1为本发明实施例中一种 FDD UL频带部分子 帧被用于下行子帧传输的应用场景示意图, 该场景为 TDD兼容方式下的应 用场景, 图 2为本发明实施例中另一种 FDD UL频带部分子帧被用于下行 传输的应用场景示意图, 该场景为非 TDD兼容方式的应用场景, 图 3本发 明实施例中一种下行传输使用 FDD UL资源部分子帧应用场景示意图, 该 场景为 TDD兼容方式的应用场景, 图 4为本发明实施例中另一种下行传输 使用 FDD UL资源部分子帧应用场景示意图,该场景为 TDD兼容方式应用 场景, 图 5为本发明实施例中另一种下行传输使用 FDD UL资源部分子帧 的应用场景示意图, 该场景为 TDD兼容方式的应用场景, 图 6a为本发明 实施例中一种下行传输使用 FDD UL资源部分子帧的应用场景示意图, 图 6b为本发明实施例中另一种下行传输使用部分 FDD UL资源部分子帧的应 用场景示意图, 6a和 6b为非 TDD兼容方式的应用场景。 图 1至图 6b中: 宏小区的接入链路为:
DL (从宏小区到宏小区的用户设备( MUE , macro cell's UE ) ): 使用 FDD的 DL频段, 如图中的 FDD DL白框所示。
UL (从 MUE到宏小区;): 使用 FDD的 UL频段中的部分子帧, 如图中 的 FDD UL频段的斜线子帧所示。
微小区有两条接入链路:
一条为 FDD接入链路, FDD的接入链路由系统配置。
DL (从微基站到微小区用户设备 PUE ( Pico cell's UE ) ): 使用 FDD的 DL频段, 如图中的 FDD DL频段的白色子帧所示。
UL (从 PUE到微小区): 使用 FDD的 UL频段中的部分子帧, 如图中 的 FDD UL频段中的斜线子帧所示。
另一条为 TDD接入链路, 该 TDD接入链路使用的是 FDD UL上的资 源。
DL (从微小区到 PUE ): 使用 FDD的 UL频段的部分子帧, 如图中的 FDD UL频段的黑点网格子帧所示。
UL (从 PUE到微小区): 使用 FDD的 UL频段中的部分子帧, 如图中 的 FDD UL频段中的斜线子帧所示。
在上行空白子帧上, 为了保持后向兼容性, 可以预留上行控制资源: 比如物理上行控制信道(Physical Uplink Control Channel, PUCCH ) 资源, 或物理随机机接入信道 ( Physical Random Access Channel, PRACH ) 资源, 或信道探测参考符号 Sounding RS资源。 在本发明实施例中, 以 PUCCH为 例,图 1至图 6中空白子帧上行频带的边缘,预留 PUCCH资源,该 PUCCH 资源可以用于 UE的 ACK/NACK反馈和 /或 CQI(Channel Quality Indicator) 反馈。 其他资源的预留和 PUCCH类似, 只是资源预留的位置不同。
图 7为本发明实施例中一种使用 TDD的上行子帧进行下行传输的应用 场景图, 该场景采用 TDD系统的无线接入方式, 详情如下:
其中宏基站的接入链路为:
下行链路: TDD下行子帧如图黑细格所示;
上行链路: TDD上行子帧如图斜线阴影所示。
上行空白子帧: 在上行空白子帧上仅发送上行控制信道, 不发送数据 业务。 上行控制信道发送的资源包括: 比如 PUCCH资源, PRACH资源, Sounding RS资源或者 PRACH资源中的至少一项。 在空白子帧的上行频带
的边缘, 预留 PUCCH资源, 该 PUCCH资源可以用于 UE的 ACK/NACK 反馈和 /或 CQI反馈。 其他资源的预留和 PUCCH类似, 只是资源预留的位 置不同。
其中微基站的接入链路为:
下行链路: TDD下行子帧如图黑细格所示;
上行链路: TDD上行子帧如图斜线阴影所示。 输。
图 8为本发明实施例中一种下行传输使用 FDD UL资源部分子帧的应 用场景示意图, 该场景为相同频带上行控制信道的传输对下行控制信道干 扰的应用场景示意图, 该场景为 TDD兼容方式, 图 9为本发明实施例中另 一种下行传输使用 FDD UL资源部分子帧的应用场景示意图, 该场景为非 TDD兼容方式, 相同频带的上行控制信道的传输对下行控制信道干扰的应 用场景示意图, 图 10a本发明实施例中一种下行传输使用 FDD UL资源部 分子帧的一种应用场景示意图, 图 10b本发明实施例中另一种下行传输使 用 FDD UL资源部分子帧的应用场景示意图, 图 10a和 10b场景为 TDD兼 容方式的相邻频带的上行控制信道的传输对相邻基站的下行控制信道干扰 的应用场景示意图, 图 11a为本发明实施例中一种下行传输使用 FDD UL 资源部分子帧的应用场景示意图, 图 lib 为本发明实施例中另一种下行传 输使用 FDD UL资源部分子帧的应用场景示意图, 11a和 lib为非 TDD兼 容方式的相邻频带的上行控制信道的传输对相邻基站的下行控制信道干扰 的应用场景, 图 12为本发明实施中另一种下行传输使用 TDD的上行子帧 进行下行传输的应用场景, 其中上行控制信道的传输对相邻基站的下行控 制信道干扰的应用场景。 在图 8到图 12中, 进一步给出了宏基站的上行控 制信道对于微基站的下行控制信道的干扰情况, 标黑色的小框框是干扰的 位置示意图。图 8到图 12中的上行控制信道是以物理上行控制信道 PUCCH
为例, 下行控制信道是以物理下行控制信道( Physical Downlink Control Channel, PDCCH )为例。 其他的上行控制信道 (PRACH, Sounding RS)对下 行控制信道 (PDCCH, CRS , 同步信道, 广播信道)的干扰情况或者下行控制 信道对于上行控制信道的干扰, 和 PUCCH以及 PDCCH干扰的处理类似, 只是干扰的位置不同, 处理的方法完全相同, 就不在此——赘述。
上述应用场景中,为了有效的利用 UL冗余的资源,或者实现不同区域 的 TDD系统不同上下行配置, FDD UL频段的部分上行子帧或 TDD系统 的部分上行子帧的资源可以被用于 TDD 的 DL接入链路资源, 从而提高 FDD UL频段利用率或实现不同区域的 TDD系统的不同上下行配置。但是, FDD UL频段上的部分上行子帧或 TDD部分上行子帧上的信令发送会干扰 相邻基站的 FDD UL频段上的 DL信令接收或 TDD频段上 DL的信令接收。
另外, 如果基站的 TDD接入系统和 FDD接入系统共站址, 该基站的 FDD UL频段上的部分上行子帧的信令发送会干扰本基站的 FDD UL频段 上的 DL信令接收。
本发明中的实施例相邻基站以宏基站为例, 服务基站以微基站为例进 行说明, 本方法应用场景包括但不限于本发明实施例中所列举的。
图 13为本发明实施例中一种干扰处理方法的流程示意图, 该实施例包 括:
1301、用户终端 UE接收服务基站发送的相邻基站中小区上行控制信道 配置信息, 所述上行控制信道配置信息包括所述相邻基站中小区的物理上 行控制信道 PUCCH配置信息或者物理随机接入信道 PRACH配置信息或者 信道探测参考符号 Sounding RS配置信息;
1302、所述 UE根据所述配置信息确定所述服务基站受到所述相邻基站 干扰的位置;
1303、 根据所述确定干扰的位置进行干扰消除。
本发明实施例提供了一种干扰处理方法,用户终端 UE接收服务基站发
送的相邻基站中小区上行控制信道配置信息, UE根据所述配置信息确定 所述服务基站受到相邻基站干扰的位置, 根据所述位置进行干扰消除。 从 而当相邻基站发送上行控制信令时, 消除上行控制道中该上行控制信令的 发送与服务基站对应位置下行控制信道中下行控制令接收的干扰。
另外, 当相邻基站在与服务基站同频或邻频的位置上发送上行控制信 令时, 可以消除该上行控制信道中上行控制信令发送对于服务基站下行控 制信中下行控制信令接收干扰; 或者, 消除相邻基站在与服务基站同频或 邻频的位置上下行控制信道中下行控制信令发送对于服务基站的上行控制 信道中上行控制信令接收的干扰。
图 14为本发明实施例提供的另一种干扰处理方法, 包括:
1401、 宏基站向微基站发送宏基站中小区上行控制信道配置信息。 该上行控制信道配置信息可以包括宏基站中小区的物理上行控制信道 ( PUCCH )配置信息或者物理随机接入信道(PRACH )配置信息或者信道 探测参考符号 ( Sounding RS ) 配置信息。
该 PUCCH配置信息包括:
上行控制资源的位置, 用于决定 PUCCH占用的资源块的位置。
上行控制资源的循环移位序列和正交码序列,用于决定 PUCCH的资源 码。
上行控制信道的偏移, 用于决定 PUCCH在资源块中占用的资源位置。 该 PRACH配置信息包括:
PRACH的配置索引, 用于决定在一个无线帧内 PRACH的时域占用的 资源块的位置。
PRACH的频域偏置量, 用于决定 PRACH的频域的位置。
PRACH的接入前导码的配置, 用于决定发起随机接入的码。
Sounding RS配置信息包括:
Sounding RS的带宽配置。
Sounding RS的子帧配置。
1402、 微基站向 UE发送宏基站中小区上行控制信道配置信息。
该配置信息的发送可以采用广播方式发送, 也可以采用专用信令方式 发送。
如果微基站以广播方式发送相邻基站配置信息, 可以在 SIB ( System
Information Block, 系统消息块) 中表明适用的版本或者适用情况, 适用的 版本如 3GPP Release 10或 3GPP Release 11或 3GPP Release 12等。 适用情 况指确定发送干扰消除的信息的具体频段或子帧, 如在 UL频段或 TDD的 的子帧上。
如果微基站通过无线资源控制 (Radio Resource Control, RRC ) 专用 信令发送相邻基站配置信息, 比如 RRC重配置消息等, 基站根据 UE的能 力选择 UE专用信令进行发送。
1403、 UE根据接收到的宏基站中小区的上行控制信道配置信息, 确定 所述微基站受到宏基站干扰的位置。
当所述上行控制信道配置信息为 PUCCH配置信息时,所述干扰的位置 包括所述相邻基站中小区 PUCCH 资源的位置和所述服务基站中小区的下 行控制信道资源位置的重叠部分。
进一步,所述 UE根据所述配置信息确定所述服务基站受到所述相邻基 站干扰的位置, 包括:
所述 UE根据所述相邻基站中小区 PUCCH配置信息中的上行控制资源 的位置和偏移获取所述相邻基站中小区 PUCCH资源的位置,根据所述相邻 基站中小区的 PUCCH 资源的位置和所述服务基站中小区的下行控制信道 资源的位置确定所述干扰的位置。
当所述上行控制信道配置信息为 PRACH配置信息时,干扰的位置包括 所述相邻基站中小区 PRACH 资源的位置和所述服务基站中小区下行控制
信道资源位置的重叠部分。
进一步,所述 UE根据所述配置信息确定所述服务基站受到相邻基站干 扰的位置, 包括:
所述 UE根据所述相邻基站中小区的 PRACH配置信息中的的配置索引 和频域偏置量获取所述相邻基站中小区 PRACH资源的位置,根据所述相邻 基站中小区 PRACH 资源的位置和所述服务基站中小区下行控制信道资源 的位置确定所述干扰的位置。
当所述上行控制信道配置信息为 Sounding RS配置信息时,干扰的位置 包括所述相邻基站中小区的 Sounding RS 资源的位置和所述服务基站中小 区的下行控制信道资源位置的重叠部分。
所述 UE根据所述配置信息确定所述服务基站受到相邻基站干扰的位 置, 包括:
所述 UE根据所述相邻基站中小区的 Sounding RS配置信息中的导频符 号的带宽配置和导频符号的子帧配置, 获取所述相邻基站中小区的 Sounding RS资源的位置, 根据所述相邻基站中小区的 Sounding RS资源的 位置和所述服务基站中小区下行控制信道资源的位置确定所述干扰的位 置。
例如图 8所示, 宏基站中 FDD UL频段中的子帧 0、 1、 5和 6上发送 的 PUCCH占用频段边带的资源(即: 图中空白帧的上下边缘的斜线阴影部 分)与微基站中 FDD UL频段中的下行子帧 0、1、5和 6的发送的 PDCCH (即: 图中子帧左面的网格边带)部分边带资源重叠 (即: 图中微基站下行子帧黑 色小格部分), 该重叠即是宏基站中小区的 PUCCH 对微基站中小区的 PDCCH的干扰的位置, 在图 8到图 12中, 微基站中小区的下行子帧上的 黑色小格部分即为 PUCCH和 PDCCH干扰的区域示意图。 根据 TDD配置 的不同, PUCCH和 PDCCH的干扰的位置可以不同, 而且当上行控制信 道 (PUCCH, PRACH或 Sounding RS)和下行控制信道 (PDCCH,CRS , 同步
信道或广播信道)有所变化时, 干扰的位置也有所不同, 但是具体的干扰消 除方法和原理与本发明一致, 不——举例进行赞述。
1404、 UE根据确定的干扰的位置进行干扰消除。
当所述干扰的位置信息为所述宏基站中小区的 PUCCH 资源的位置和 微基站中小区的下行控制信道资源位置的重叠部分时, 根据所述干扰的位 置信息进行干扰消除包括:
所述 UE根据所述宏基站中小区的上行控制资源的循环移位序列和正 交码序列,获取所述干扰的位置的干扰比特接收功率,所述 UE根据接收到 总信号的功率与所述干扰比特接收功率,获取所述 UE所在的微基站中小区 所发送的下行数据信号功率, 根据所述下行数据信号功率获取下行数据信 号。
进一步,所述 UE具体根据宏基站中小区的上行控制资源的循环移位序 列和正交码序列, 通过码序列相关性操作, 获取所述干扰的位置的干扰比 特接收功率, 所述 UE从接收到的总信号功率减去所述干扰比特接收功率 , 获得 UE所在微基站所发送的下行数据信号功率,根据所述下行数据信号功 率获取下行数据信号。
当所述干扰的位置信息为所述宏基站中小区 PRACH 资源的位置和微 基站中小区下行控制信道资源位置的重叠部分时, 所述根据所述干扰的位 置信息进行干扰消除包括:
所述 UE根据所述宏基站中小区的 PRACH的接入前导码配置,获取所 述干扰的位置的干扰比特接收功率,所述 UE根据接收到总信号的功率与所 述干扰比特接收功率,获取所述 UE所在的微基站中小区所发送的下行数据 信号功率, 根据所述下行数据信号功率获取下行数据信号。
进一步, 所述 UE具体根据宏基站中小区的 PRACH的接入前导配置, 获取所述干扰的位置的干扰比特接收功率,所述 UE从接收到的总信号功率 减去所述干扰比特接收功率,获得所述 UE所在的微基站中小区所发送的下
行数据信号功率, 根据所述下行数据信号功率获取下行数据信号。
当所述干扰的位置信息为宏基站中小区的 Sounding RS 资源的位置和 微基站中小区的下行控制信道资源位置的重叠部分时, 所述根据所述干扰 的位置信息进行干扰消除包括:
所述 UE根据所述宏基站中小区的 Sounding RS码序列进行码序列相关 性操作,获取所述干扰的位置的干扰比特接收功率,所述 UE根据接收总信 号的功率和所述干扰比特接收功率,获取所述 UE所在的微基站中小区所发 送的下行数据信号功率, 根据所述下行数据信号功率获取下行数据信号。
如果没有接收到 PRACH的接入前导码的配置, 则通过全部的 PRACH 的前导码进行码相关性的操作, 获取干扰比特的接收功率。
当所述干扰的位置信息为宏基站中小区的 Sounding RS 资源的位置和 微基站中小区的下行控制信道资源位置的重叠部分时, 所述根据所述干扰 的位置信息进行干扰消除包括:
所述 UE根据所述宏基站中小区的 Sounding RS码序列进行码序列相关 性操作,获取所述干扰的位置的干扰比特接收功率,所述 UE根据接收总信 号的功率和所述干扰比特接收功率,获取所述 UE所在的微基站中小区所发 送的下行数据信号功率, 根据所述下行数据信号功率获取下行数据信号。
进一步,所述 UE具体根据所述宏基站中小区的 Sounding RS码序列进 行码序列相关性操作, 获取所述干扰的位置的干扰比特接收功率, 所述 UE 从接收的总信号功率中减去上述 Sounding RS的干扰比特接收功率,获得所 述 UE所在的微基站所发送的下行数据信号功率,根据所述下行数据信号功 率获取下行数据信号。 本发明实施例中, 通过 UE接收微基站发送的宏基站中小区配置信息, UE根据接收到的宏基站配置信息, 确定干扰的位置, UE根据确定的干扰 的位置进行干扰消除,从而消除该上行控制信令的发送对微基站在 FDD UL
频段或 TDD频段上下行子帧的信令接收产生干扰。
图 15为本发明实施例提供的另一种干扰处理方法, 宏基站将该宏基站 的上行控制信道配置信息发送给微基站, 微基站根据收到配置信息, 进行 干扰规避, 即不在干扰的位置上进行资源分配, 本发明中的实施例相邻基 站以宏基站为例, 服务基站以微基站为例进行说明, 本方法应用场景包括 但不限于本发明实施例中所列举的, 包括:
1501、 宏基站向微基站发送宏基站中小区上行控制信道配置信息。 该配置信息包括上行控制信道配置信息或者下行控制信道的配置信 息。
该上行控制信道配置信息可以包括宏基站中小区的 PUCCH 配置信息 或者 PRACH配置信息或者信道探测参考符号 (Sounding RS ) 配置信息, 详情参见图 14所示实施例中步骤 1401的内容, 在此不再赘述。
该下行控制信道配置信息可以包括宏基站中小区的物理下行控制信道 PDCCH或者公共参考符号 CRS的配置信息。
PDCCH配置信息包括:
时域配置, 即用 PDCCH所占用每个子帧的符号个数表示。
频域配置, 即通过 PDCCH信道的频点和带宽表示。
CRS配置信息包括:
CRS发送的频点和带宽。
CRS所使用的天线个数。
1502、 微基站根据接收的所述配置信息, 通过资源分配调整所述微基 站与所述宏基站中小区的配置信息中资源位置重叠部分;
进一步, 如果所述微基站接收宏基站中小区的上行控制信道配置信息, 所述微基站通过资源分配调整所述微基站与所述宏基站中小区的配置信息 所指示资源重叠部分, 包括:
当所述微基站为下行控制信道分配资源时, 与所述宏基站中小区的上
行控制信道配置信息中资源位置和所述微基站中小区的下行控制信道配置 信息中资源位置的重叠部分, 不分配给所述微基站中小区的下行控制信道。
进一步, 如果所述微基站接收宏基站中小区的下行控制信道配置信息, 所述微基站通过资源分配调整所述微基站中小区与所述宏基站中小区的配 置信息中资源重叠部分, 包括:
进一步, 当所述微基站为上行控制信道分配资源时, 与所述宏基站中 小区的下行控制信道配置信息中资源位置和所述微基站中小区的上行控制 信道配置信息中资源位置的重叠部分, 不分配给所述微基站中小区的上行 控制信道。
以 PDCCH进行干扰规避为例, 如图 8所示, 宏基站中 PDCCH资源位 置如空白帧上斜线阴影部分所示,在微基站中 PDCCH资源位置可以为一个 子帧的前三个符号中至少一个, 如每个子帧左边带 B1 , 所以微基站上的 PDCCH的部分资源会受到宏基站的 PUCCH部分资源的干扰, 干扰的位置 如图 8 中微基站下行子帧上的黑色小格所示, 为了消除干扰, 不把与所述 宏基站中小区的 PUCCH资源位置和所述微基站 PDCCH资源位置的重叠部 分 (图 8中的小黑格部分)分配给所述微基站的下行控制信道,而下行控制信 道其他配置信息的规避方案和 PDCCH类似,只是资源的位置不同,在此不 一一赞述。
当考虑到微基站对于宏基站上行的干扰时, 同样宏基站在进行 PUCCH 的资源分配时, 也可以不把与所述宏基站 PUCCH 资源位置和所述微基站 PDCCH资源位置的重叠部分 (图 9中的小黑格部分)分配给所述宏基站的上 行控制信道, 例如 PUCCH。
1503、 微基站将调整后配置信息发送给 UE。
比如在图 8中, 微基站把 PDCCH的带宽从全带宽 B1调整到更窄的带 宽 B2, 微基站可以通知 UE该调整后的带宽 B2,然后 UE在带宽 B2上进行 PDCCH的接收。
配置信息的发送方式与图 14所示的实施例中步骤 1402的内容类似, 在此不再赘述。
1504、 可选的, UE接收微基站发送的所述调整后配置信息, 并根据所 述调整后配置信息进行数据接收。
若微基站也可以将调整后的其他调度配置信息发送给 UE, 则 UE根据 PDCCH配置信息或者下行其他调度配置信息进行数据接收。 UE接收到的 PDCCH配置信息主要是 PDCCH控制信道占用的资源块位置, 该 PDCCH 控制信道占用的资源块的位置,可以通过 PDCCH信道所在的频点和所占用 的带宽来表示, 下行控制信道占用的资源块位置信息未传递时, 则默认使 用和小区同样的频点。 其他调度信息也可以为调度信息所占用的资源块位 置, 该占用的资源块的位置也可以通过资源所在的频点和所占用的带宽来 表示, 资源频点上可选信息未传递时, 则默认使用和小区同样的频点。
本发明实施例中, 通过宏基站向微基站发送的宏基站中小区配置信息, 微基站根据接收配置信息进行干扰规避, 即调整本微基站中小区的 PDCCH 或 CRS或同步信道或广播信道频率或时域的位置, 以消除和宏基站的上行 控制信道的资源产生干扰, 从而消除该上行控制信令的发送对微基站的在 FDD UL频段或 TDD频段的下行子帧的信令接收产生干扰。
另外, 本发明实施例通过宏基站向微基站发送的宏基站中小区配置信 息, 微基站根据接收配置信息进行干扰规避, 即调整本微基站中小区的 PUCCH或 PRACH或 Sounding RS频率或时域的位置, 以消除和宏基站的 下行控制信道的资源产生干扰, 从而消除该下行控制信令的发送对微基站 的上行子帧的信令接收产生干扰。
本发明实施例中的相邻基站以宏基站为例, 服务基站以微基站为例进 行说明, 本发明提供的应用场景不仅可以应用到相同接入技术的宏基站与 微基站之间, 还可以应用到不相同接入技术的宏基站和微基站之间。
本发明实施例所提供的相邻的基站可以是异构网络也可以是同构网
络, 可以是同频网络也可以是异频网络。
图 16所示的实施例与图 15所示的实施例提供的干扰消除的方法类似, 不同之处在于:
该宏基站可以周期性向微基站发送配置信息。 或者
该宏基站检测到干扰后向微基站发送宏基站的配置信息。 或者 在宏基站中小区配置完成后, 向微基站发送该宏基站中小区配置信息。 本实施例中配置信息包括该上行控制信道配置信息用于提供给微基站 进行下行数据接收的干扰消除。 该下行控制信道配置信息用于提供给微基 站进行上行数据接收的干扰消除。
下面已检测到干扰后的情况进行说明, 其他情况与本发明类以, 在此 不再赘述, 包括:
本发明实施例通过宏基站向微基站发送的宏基站中小区配置信息, 微 基站根据接收配置信息进行干扰规避, 即调整下行控制资源位置或者调整 上行控制资源位置, 以消除和宏基站的上行控制信道的资源产生干扰, 从 而消除该上行控制信令的发送对微基站的在 FDD UL频段或 TDD频段的下 行子帧的信令接收产生干扰或者微基站的下行控制信道的发送对于宏基站 的上行控制信道的接收产生干扰。
在上述的实施例中, 微基站和宏基站可以正确解析宏基站的上下行控 制信道和上下行参考符号配置信息, 但是当宏基站和微基站使用不同的 RAT 时, 微基站并不能解析宏基站上控制信道配置信息, 或者宏基站不能 解析 基站的控制信道配置信息。
在不同的接入技术中, 相邻基站和服务基站间也会发生上述干扰问题。 为了解决相同的接入技术与不同的接入技术的相邻基站间的上下行控 制信道间的干扰问题, 提出如下解决方案。
本发明提供了另一种干扰处理的方法, 如图 17所示, 宏基站直接或间 接向微基站指示存在干扰的位置的信息, 微基站根据该位置的信息, 进行
控制信道的干扰规避。 本发明中的实施例相邻基站以宏基站为例, 服务基 站以微基站为例进行说明, 本方法应用场景包括但不限于本发明实施例中 所列举的。 具体包括:
1701、 宏基站接收微基站中小区配置信息。
该配置信息可以包括微基站中小区的上下行频点、 频带配置信息或者 上下行子帧配置信息等。
1702、 宏基站获取该宏基站中小区的配置信息, 根据该宏基站中小区 的配置信息与微基站中小区配置信息获取微基站对宏基站干扰的时域和频 域配置信息。
干扰的时域和频域配置信息包括发生干扰的时域和频域资源位置信息 或者发生干扰的时域和频域资源配置信息。
该宏基站可以根据测量或者性能规范或协议规定或默认方式等获取微 基站对本基站干扰的时域和频域配置信息。
当宏基站下的 UE对微基站进行干扰检测时, 微基站把其工作的频点, 和上下行配比信息通知给宏基站,宏基站或宏基站下的 UE对微基站进行干 扰检测, UE把干扰检测的测量结果上报给宏基站, 宏基站根据该基站或者 UE上报的微基站配置信息,确定微基站对该微基站干扰的频域或时域的位 置。
该微基站干扰的频域根据干扰门限进行设置, 满足干扰门限的频带为 干扰的频域位置;
该微基站干扰的时域根据微基站进行下行数据发送的时隙确定的。
所述根据性能规范、 协议规定或默认方式确定干扰频域的方法包 括: 规定一个值的频域范围。 当微基站的频域和宏基站的频域在设定的频 域范围内有重叠部分, 即认为重叠部分为干扰频域部分。 比如 5MHz或者 10MHz或者 30MHz等等。 比如当两个基站的频率间隔在上述设定的范围 内, 则认为存在频域干扰。
当微基站向宏基站发送其工作频带信息, 比如工作频点和工作带宽给 宏基站, 则宏基站根据微基站的工作频带和宏基站自身的工作频带, 确定 干扰的频段信息, 比如图 18中, 宏基站确定部分频段(网格阴影的频段) 为和微基站干扰的频带。 然后宏基站将该确定的干扰频段的信息通知给微 基站, 则微基站在进行该频段上的上行或下行控制信道的配置时, 根据该 干扰频段配置信息, 进行干扰规避。 也就在干扰的频域上进行上行控制信 道的分配或者下行控制信道的分配, 或者不进行数据的调度等。
所述干扰的频域配置信息通过中心频点和频带方式表示, 或者通过频 率相对的偏置方式表示;
对时域干扰的情况也是类似的, 如图 19所示, 为微基站和宏基站的时 域的干扰。
当微基站向宏基站发送该微基站工作时频配置信息, 如时隙用于上行 资源配置信息和时隙用于下行资源配置信息, 或者上下行配比, 或者上下 行的配置模式索引给宏基站, 则宏基站根据微基站的工作时域配置信息, 确定干扰的时段信息, 比如图 19中,宏基站确定部分时隙(斜线阴影部分) 为与微基站发生干扰的时隙。 然后宏基站将该确定的干扰时域的信息通知 给微基站, 则微基站在进行该时隙上的上行或下行控制信道的配置时, 可 以考虑该干扰信息, 进行干扰规避。 也即不在该干扰的时隙进行上行控制 信道的分配或者下行控制信道的分配, 或者不进行数据的调度等。
当干扰的资源位置由时域和频域同时决定时, 则结合上述的图 17和图
18 的方法进行干扰规避的处理, 不再——赘述。 其中, 干扰的时域以 lms 无线帧为时隙单位, 以 Bitstring方式或者 Bitmap方式指示易受干扰的时域 资源。
若易受干扰的时域资源时间跨度比较大, 可以以无线帧为单位进行时 域指示。 频域的指示可以通过中心频点和频带方式进行指示, 或者通过频 率相对的偏置方式来表示频点信息。
1703、 宏基站将微基站对宏基站干扰的时域和频域配置信息发送给微 基站。
1704、 微基站进行资源调度时, 通过资源分配调整所述微基站与所述 宏基站存在干扰的时域和频域配置信息。
进一步, 通过资源分配调整所述微基站与所述宏基站存在干扰的时域 和频域配置信息, 包括:
当所述服务基站为下行控制信道分配资源时, 与所述相邻基站中小区 干扰的频域或时域配置信息所指示的资源位置与服务基站中小区下行控制 信道资源重叠部分或所述相邻基站干扰的频域或时域资源, 不分配给所述 服务基站中小区的下行控制信道; s
当所述服务基站为上行控制信道分配资源时, 不把与所述相邻基站中 小区的干扰的频域或时域配置信息所指示的资源位置与所述服务基站中小 区上行控制信道资源重叠部分或所述相邻基站干扰的频域或时域资源, 不 分配给所述服务基站的上行控制信道。
上行控制信道配置信息与下行控制信道的配置信息, 上行控制信道的 配置信息详情参见图 14所示实施例中步骤 1401的内容, 下行控制信道的 配置信息详情参见图 15所示实施例中步骤 1501的内容, 在此不再赘述。
本发明实施例通过宏基站接收微基站配置信息, 该配置信息可以包括 微基站的上下行频点、 频带配置信息或者上下行子帧配置信息等, 宏基站 根据测量或者性能规范或协议规定或默认方式获取配置信息, 微基站进行 资源调度时, 根据宏基站发送干扰的时域和频域配置信息, 进行干扰规避 操作, 从而消除在该干扰的频域或时域位置进行上行控制信道或下行控制 信道或者数据的调度。
图 20所示, 本发明实施例还提供了一种干扰处理方法, 其特征在于, 包括:
2001、 服务基站接收相邻基站发送的所述相邻基站中小区上行控制信
道配置信息。
所述上行控制信道配置信息包括所述相邻基站中小区的物理上行控制 信道 PUCCH配置信息或者物理随机接入信道 PRACH配置信息或者信道探 测参考符号 Sounding RS配置信息;
所述 PUCCH配置信息包括上行控制资源的位置、上行控制资源的循环 移位序列和正交码序列和 PUCCH的偏移;
所述 PRACH配置信息包括 PRACH的配置索引、 PRACH的频域偏置 量和 PRACH的接入前导码的配置;
所述 Sounding RS配置信息包括导频符号的带宽配置和导频符号的子 帧配置。
2002、所述服务基站向 UE发送所述相邻基站中小区上行控制信道配置 信息。
所述 UE根据所述上行控制信道配置信息进行干扰消除。
本发明实施例提供了一种干扰处理方法, 服务基站接收相邻基站中小 区上行控制信道配置信息, 并将该配置信息转发给 UE, 使 UE根据所述配 置信息确定所述服务基站受到相邻基站干扰的位置, 根据所述位置进行干 扰消除。 从而当相邻基站发送上行控制信令时, 消除上行控制道中该上行 控制信令的发送与服务基站对应位置下行控制信道中下行控制令接收的干 扰。
图 20a为本发明实施例中另一种干扰处理方法, 包括:
20al、 服务基站接收相邻基站中小区配置信息, 所述相邻基站中小区 配置信息包括所述相邻基站中小区的上行控制信道配置信息或下行控制信 道配置信息或干扰的频域或时域配置信息;
20a2、 所述服务基站根据所述相邻基站中小区配置信息和所述服务基 站中小区配置信息进行资源分配; 其中,
所述资源分配包括不把所述服务基站中小区配置信息与所述相邻基站
中小区配置信息中资源位置的重叠部分分配给所述服务基站。
服务基站接收相邻基站中小区配置信息, 所述服务基站根据所述相邻 基站中小区配置信息和所述服务基站中小区配置信息进行资源分配, 从而 当相邻基站发送上行控制信令时, 消除上行控制道中该上行控制信令的发 送与服务基站对应位置下行控制信道中下行控制令接收的干扰。
图 21为本发明实施例中一种干扰处理装置, 包括:
传输模块 2101 , 用于接收服务基站发送的相邻基站中小区上行控制信 道配置信息, 所述上行控制信道配置信息包括所述相邻基站中小区的物理 上行控制信道 PUCCH配置信息或者物理随机接入信道 PRACH配置信息或 者信道探测参考符号 Sounding RS配置信息。
确定模块 2102, 用于根据所述传输模块接收的所述配置信息确定所述 服务基站受到所述相邻基站干扰的位置。
处理模块 2103 , 用于根据所述确定模块确定的所述干扰位置进行干扰 消除。
进一步, 本发明实施例中干扰处理装置的确定模块用于:
根据所述传输模块接收的所述配置信息, 确定所述服务基站受到所述 相邻基站中小区 PUCCH 资源的位置和所述服务基站中小区的下行控制信 道资源位置的重叠部分的干扰。 或者
根据所述传输模块接收的所述配置信息, 确定所述服务基站受到所述 相邻基站中小区 PRACH 资源的位置和所述服务基站中小区下行控制信道 资源位置的重叠部分的干扰。 或者
根据所述传输模块接收的所述配置信息, 确定所述服务基站受到所述 相邻基站中小区的 Sounding RS 资源的位置和所述服务基站中小区的下行 控制信道资源位置的重叠部分的干扰。
进一步, 本发明实施例中干扰处理装置的确定模块还用于:
根据所述传输模块接收配置信息的相邻基站中小区 PUCCH 配置信息
的上行控制资源位置和偏移, 获取所述相邻基站中小区 PUCCH 资源的位 置,根据所述相邻基站中小区的 PUCCH资源的位置和所述服务基站中小区 的下行控制信道资源的位置确定所述干扰的位置。 或者
根据所述传输模块接收配置信息的相邻基站中小区 PRACH 配置信息 的配置索引和频域偏置量, 获取所述相邻基站中小区 PRACH资源的位置, 根据所述相邻基站中小区 PRACH 资源的位置和所述服务基站中小区下行 控制信道资源的位置确定所述干扰的位置。 或者
根据所述传输模块接收配置信息中相邻基站中小区 Sounding RS配置 信息的导频符号带宽配置和导频符号子帧配置, 获取所述相邻基站中小区 的 Sounding RS资源的位置, 根据所述相邻基站中小区的 Sounding RS资源 的位置和所述服务基站中小区下行控制信道资源的位置确定所述干扰的位 置。
进一步, 本发明实施例中干扰处理装置的处理模块用于:
根据所述相邻基站中小区的上行控制资源的循环移位序列和正交码序 列, 获取所述干扰的位置的干扰比特接收功率, 根据接收到总信号的功率 与所述干扰比特接收功率,获取所述 UE所在的服务基站中小区所发送的下 行数据信号功率, 根据所述下行数据信号功率获取下行数据信号。 或者 根据所述相邻基站中小区 PRACH的接入前导码配置,获取所述干扰的 位置的干扰比特接收功率, 根据接收到总信号的功率与所述干扰比特接收 功率,获取所述 UE所在的服务基站中小区所发送的下行数据信号功率,根 据所述下行数据信号功率获取下行数据信号。 或者
根据所述相邻基站中小区的 Sounding RS码序列进行码序列相关性操 作, 获取所述干扰的位置的干扰比特接收功率, 根据接收总信号的功率和 所述干扰比特接收功率,获取所述 UE所在的服务基站中小区所发送的下行 数据信号功率, 根据所述下行数据信号功率获取下行数据信号。
本发明实施例提供了一种干扰处理装置, 从而当相邻基站发送上行控
制信令时, 消除上行控制道中该上行控制信令的发送与服务基站对应位置 下行控制信道中下行控制令接收的干扰。
另外, 当相邻基站在与服务基站同频或邻频的位置上发送上行控制信 令时, 可以消除该上行控制信道中上行控制信令发送对于服务基站下行控 制信中下行控制信令接收干扰; 或者, 消除相邻基站在与服务基站同频或 邻频的位置上下行控制信道中下行控制信令发送对于服务基站的上行控制 信道中上行控制信令接收的干扰。 图 22为本发明实施中另一种干扰处理装置, 包括:
收发模块, 用于接收相邻基站中小区配置信息, 所述相邻基站中小区 配置信息包括所述相邻基站中小区的上行控制信道配置信息或下行控制信 道配置信息或干扰的频域或时域配置信息。
分配模块, 用于根据所述相邻基站中小区配置信息和所述服务基站中 小区的配置信息确定资源重叠部分, 进行资源分配; 其中
进一步, 所述分配模块用于不把所述服务基站中小区与所述相邻基站 中小区的配置信息中资源位置重叠部分分配给所述服务基站。
进一步, 如图 23所示, 所述装置还包括调整模块, 用于根据所述相邻 基站中小区配置信息调整所述服务基站中小区配置信息;
其中, 所述调整模块调整的所述服务基站中小区配置信息中不包括所 述服务基站中小区配置信息与所述相邻基站中小区配置信息中资源位置的 重叠部分。
所述收发模块还用于将所述调整模块调整后的所述服务基站中小区配 置信息发送给用户终端 UE;
进一步, 本发明实施例中干扰处理装置的分配模块用于:
当所述服务基站为下行控制信道分配资源时, 与所述相邻基站中小区 的上行控制信道配置信息中资源位置和所述服务基站中小区的下行控制信
道配置信息中资源位置的重叠部分, 不分配给所述服务基站中小区的下行 控制信道。 或者
当所述服务基站为上行控制信道分配资源时, 与所述相邻基站中小区 的下行控制信道配置信息中资源位置和所述服务基站中小区的上行控制信 道配置信息中资源位置的重叠部分, 不分配给所述服务基站中小区的上行 控制信道。 或者
当所述服务基站为下行控制信道分配资源时, 与所述相邻基站中小区 干扰的频域或时域配置信息中资源位置与服务基站中小区下行控制信道中 资源位置的重叠部分, 不分配给所述服务基站中小区的上行控制信道。 或 者
所述相邻基站干扰的频域或时域配置信息中资源位置与服务基站中小 区下行控制信道配置信息中资源位置的重叠部分, 不分配给所述服务基站 中小区的下行控制信道。 或者
当所述服务基站为上行控制信道分配资源时, 不把与所述相邻基站中 小区的干扰的频域或时域配置信息中资源位置与所述服务基站中小区上行 控制信道配置信息中资源位置的重叠部分, 不分配给所述服务基站中小区 的下行控制信道。 或者
所述相邻基站干扰的频域或时域资源的配置信息中资源位置与所述服 务基站中小区上行控制信道配置信息中资源位置的重叠部分, 不分配给所 述服务基站的上行控制信道。
本发明实施例提供了一种干扰处理装置, 包括, 用于接收相邻基站中 小区配置信息的收发模块, 所述相邻基站中小区配置信息包括所述相邻基 站中小区的上行控制信道配置信息或下行控制信道配置信息或干扰的频域 或时域配置信息, 用于根据所述相邻基站中小区配置信息和所述服务基站 中小区的配置信息确定资源重叠部分, 进行资源分配的分配模块, 所述资 源分配包括不把所述服务基站中小区与所述相邻基站中小区的配置信息中
资源位置重叠部分分配给所述服务基站。 从而当相邻基站发送上行控制信 令时, 消除上行控制道中该上行控制信令的发送与服务基站对应位置下行 控制信道中下行控制令接收的干扰。
另外, 当相邻基站在与服务基站同频或邻频的位置上发送上行控制信 令时, 可以消除该上行控制信道中上行控制信令发送对于服务基站下行控 制信中下行控制信令接收干扰; 或者, 消除相邻基站在与服务基站同频或 邻频的位置上下行控制信道中下行控制信令发送对于服务基站的上行控制 信道中上行控制信令接收的干扰。
值得注意的是, 上述用户设备和基站实施例中, 所包括的各个单元只 是按照功能逻辑进行划分的, 但并不局限于上述的划分, 只要能够实现相 应的功能即可; 另外, 各功能单元的具体名称也只是为了便于相互区分, 并不用于限制本发明的保护范围。
另外, 本领域普通技术人员可以理解实现上述各方法实施例中的全部 或部分步骤是可以通过程序来指令相关的硬件完成, 相应的程序可以存储 于一种计算机可读存储介质中, 上述提到的存储介质可以是只读存储器, 磁盘或光盘等。
以上所述, 仅为本发明较佳的具体实施方式, 但本发明的保护范围并 不局限于此, 任何熟悉本技术领域的技术人员在本发明实施例揭露的技术 范围内, 可轻易想到的变化或替换, 都应涵盖在本发明的保护范围之内。 因此, 本发明的保护范围应该以权利要求的保护范围为准。
Claims
1、 一种干扰处理的方法, 其特征在于, 包括:
用户终端 UE接收服务基站发送的相邻基站中小区上行控制信道配置 信息, 所述上行控制信道配置信息包括所述相邻基站中小区的物理上行控 制信道 PUCCH配置信息或者物理随机接入信道 PRACH配置信息或者信道 探测参考符号 Sounding RS配置信息;
所述 UE根据所述配置信息确定所述服务基站受到所述相邻基站干扰 的位置; 并且
根据所述确定干扰的位置进行干扰消除。
2、 根据权利要求 1所述的方法, 其特征在于, 当所述上行控制信道配 置信息为 PUCCH配置信息时, 所述干扰的位置包括:
所述相邻基站中小区 PUCCH 资源的位置和所述服务基站中小区的下 行控制信道资源位置的重叠部分。
3、 根据权利要求 1所述的方法, 其特征在于,
当所述上行控制信道配置信息为 PUCCH配置信息时,所述 UE根据所 述配置信息确定所述服务基站受到所述相邻基站干扰的位置, 包括:
所述 UE根据所述相邻基站中小区 PUCCH配置信息中的上行控制资源 的位置和偏移获取所述相邻基站中小区 PUCCH资源的位置,根据所述相邻 基站中小区的 PUCCH 资源的位置和所述服务基站中小区的下行控制信道 资源的位置确定所述干扰的位置。
4、 根据权利要求 1所述的方法, 其特征在于, 当所述上行控制信道配 置信息为 PRACH配置信息时, 所述干扰的位置包括:
所述相邻基站中小区 PRACH 资源的位置和所述服务基站中小区下行 控制信道资源位置的重叠部分。
5、 根据权利要求 1所述的方法, 其特征在于, 当所述上行控制信道配 置信息为 PRACH配置信息时,所述 UE根据所述配置信息确定所述服务基 站受到相邻基站干扰的位置, 包括:
所述 UE根据所述相邻基站中小区的 PRACH配置信息中的配置索引和 频域偏置量获取所述相邻基站中小区 PRACH资源的位置,根据所述相邻基 站中小区 PRACH 资源的位置和所述服务基站中小区下行控制信道资源的 位置确定所述干扰的位置。
6、 根据权利要求 1所述的方法, 其特征在于, 当所述上行控制信道配 置信息为 Sounding RS配置信息时, 所述干扰的位置包括:
所述相邻基站中小区的 Sounding RS 资源的位置和所述服务基站中小 区的下行控制信道资源位置的重叠部分。
7、 根据权利要求 1所述的方法, 其特征在于, 当所述上行控制信道配 置信息为 Sounding RS配置信息时,所述 UE根据所述配置信息确定所述服 务基站受到相邻基站干扰的位置, 包括:
所述 UE根据所述相邻基站中小区的 Sounding RS配置信息中的导频符 号的带宽配置和导频符号的子帧配置, 获取所述相邻基站中小区的
Sounding RS资源的位置, 根据所述相邻基站中小区的 Sounding RS资源的 位置和所述服务基站中小区下行控制信道资源的位置确定所述干扰的位 置。
8、 根据权利要求 1所述的方法, 其特征在于,
当所述干扰的位置为所述相邻基站中小区的 PUCCH 资源的位置和服 务基站中小区的下行控制信道资源位置的重叠部分时, 根据所述干扰的位 置进行干扰消除包括:
所述 UE根据所述相邻基站中小区的上行控制资源的循环移位序列和 正交码序列,获取所述干扰的位置的干扰比特接收功率,所述 UE根据接收 到总信号的功率与所述干扰比特接收功率,获取所述 UE所在的服务基站中 小区所发送的下行数据信号功率, 根据所述下行数据信号功率获取下行数 据信号;
当所述干扰的位置为所述相邻基站中小区 PRACH 资源的位置和服务 基站中小区下行控制信道资源位置的重叠部分时, 根据所述干扰的位置进 行干扰消除包括:
所述 UE根据所述相邻基站中小区的 PRACH的接入前导码配置,获取 所述干扰的位置的干扰比特接收功率,所述 UE根据接收到总信号的功率与 所述干扰比特接收功率,获取所述 UE所在的服务基站中小区所发送的下行 数据信号功率, 根据所述下行数据信号功率获取下行数据信号;
当所述干扰的位置为相邻基站中小区的 Sounding RS 资源的位置和服 务基站中小区的下行控制信道资源位置的重叠部分时, 所述根据干扰的位 置进行干扰消除包括:
所述 UE根据所述相邻基站中小区的 Sounding RS码序列进行码序列相 关性操作,获取所述干扰的位置的干扰比特接收功率,所述 UE根据接收总 信号的功率和所述干扰比特接收功率,获取所述 UE所在的服务基站中小区 所发送的下行数据信号功率, 根据所述下行数据信号功率获取下行数据信 号。
9、 一种干扰处理方法, 其特征在于, 包括:
服务基站接收相邻基站中小区配置信息, 所述相邻基站中小区配置信 息包括所述相邻基站中小区的上行控制信道配置信息或下行控制信道配置 信息或干扰的频域或时域配置信息;
所述服务基站根据所述相邻基站中小区配置信息和所述服务基站中小 区配置信息进行资源分配; 其中,
所述资源分配包括不把所述服务基站中小区配置信息与所述相邻基站 中小区配置信息中资源位置的重叠部分分配给所述服务基站。
10、 根据权利要求 9所述的方法, 其特征在于, 所述方法还包括: 所述服务基站根据所述相邻基站中小区配置信息调整所述服务基站中 小区配置信息;
所述服务基站将所述经过调整的所述服务基站中小区配置信息发送给
UE; 其中,
所述经过调整的所述服务基站中小区配置信息中不包括所述服务基站 中小区配置信息与所述相邻基站中小区配置信息中资源位置的重叠部分。
11、 根据权利要求 9所述的方法, 其特征在于,
如果所述服务基站接收相邻基站中小区的上行控制信道配置信息, 所 述不把所述服务基站中小区与所述相邻基站中小区的配置信息中资源重叠 部分分配给所述服务基站, 包括:
当所述服务基站为下行控制信道分配资源时, 与所述相邻基站中小区 的上行控制信道配置信息中资源位置和所述服务基站中小区的下行控制信 道配置信息中资源位置的重叠部分, 不分配给所述服务基站中小区的下行 控制信道;
如果所述服务基站接收相邻基站中小区的下行控制信道配置信息, 所 述不把所述服务基站中小区与所述相邻基站中小区的配置信息中资源重叠 部分分配给所述服务基站, 包括:
当所述服务基站为上行控制信道分配资源时, 与所述相邻基站中小区 的下行控制信道配置信息中资源位置和所述服务基站中小区的上行控制信 道配置信息中资源位置的重叠部分, 不分配给所述服务基站中小区的上行 控制信道;
当所述服务基站接收干扰的频域或时域配置信息时, 所述不把所述服 务基站中小区与所述相邻基站中小区的配置信息中资源重叠部分分配给所 述服务基站, 包括:
当所述服务基站为下行控制信道分配资源时, 与所述相邻基站中小区 干扰的频域或时域配置信息中资源位置与服务基站中小区下行控制信道配 置信息中资源位置的重叠部分, 或者所述相邻基站干扰的频域或时域资源 配置信息中的资源位置与服务基站中小区下行控制信道配置信息中资源位 置的重叠部分, 不分配给所述服务基站中小区的下行控制信道;
当所述服务基站为上行控制信道分配资源时, 不把与所述相邻基站中 小区干扰的频域或时域配置信息中资源位置与所述服务基站中小区上行控 制信道配置信息中资源位置的重叠部分, 或者所述相邻基站存在干扰的频 域或时域配置信息中资源, 不分配给所述服务基站的上行控制信道;
所述上行控制信道配置信息包括:物理上行控制信道 PUCCH配置信息 或者物理随机接入信道 PRACH配置信息或者信道探测参考符号 Sounding RS配置信息;
所述下行控制信道配置信息包括:物理下行控制信道 PDCCH配置信息 或者公共参考符号 CRS配置信息。
12、 根据权利要求 9所述的方法, 其特征在于, 服务基站接收相邻基 站中小区配置信息包括:
所述服务基站周期性的接收相邻基站中小区配置信息;
所述服务基站接收相邻基站检测到干扰后发送的所述相邻基站配置信 息;
所述服务基站接收相邻基站配置完成后发送的所述相邻基站配置信 息。
13、 根据权利要求 9所述的方法, 其特征在于,
所述干扰的频域配置信息包括中心频点和频带方式, 或者包括频率相 对的偏置方式;
所述干扰的时域配置信息包括将无线帧作为时隙单位或比特串 bitstring方式或者比特图 Bitmap方式或无线超帧单位指示受干扰时域资源 的信息。
14、 一种干扰处理装置, 其特征在于, 包括:
传输模块, 用于接收服务基站发送的相邻基站中小区上行控制信道配 置信息, 所述上行控制信道配置信息包括所述相邻基站中小区的物理上行 控制信道 PUCCH配置信息或者物理随机接入信道 PRACH配置信息或者信 道探测参考符号 Sounding RS配置信息;
确定模块, 用于根据所述传输模块接收的所述配置信息确定所述服务 基站受到所述相邻基站干扰的位置;
处理模块, 用于根据所述确定模块确定的所述干扰位置进行干扰消除。
15、 根据权利要求 14所述的装置, 其特征在于,
所述确定模块进一步用于根据所述传输模块接收的所述配置信息, 确 定所述干扰位置为所述服务基站受到所述相邻基站中小区 PUCCH 资源的 位置和所述月良务基站中小区的下行控制信道资源位置的重叠部分; 或者 所述确定模块进一步用于根据所述传输模块接收的所述配置信息, 确 定述干扰位置为所述服务基站受到所述相邻基站中小区 PRACH 资源的位 置和所述服务基站中小区下行控制信道资源位置的重叠部分; 或者
所述确定模块进一步用于根据所述传输模块接收的所述配置信息, 确 定述干扰位置为所述服务基站受到所述相邻基站中小区的 Sounding RS资 源的位置和所述服务基站中小区的下行控制信道资源位置的重叠部分。
16、 根据权利要求 14所述的装置, 其特征在于,
所述确定模块进一步用于根据所述传输模块接收配置信息的相邻基站 中小区 PUCCH配置信息的上行控制资源位置和偏移,获取所述相邻基站中 小区 PUCCH资源的位置,根据所述相邻基站中小区的 PUCCH资源的位置 和所述服务基站中小区的下行控制信道资源的位置确定所述干扰的位置; 或者
所述确定模块进一步用于根据所述传输模块接收配置信息的相邻基站 中小区 PRACH配置信息的配置索引和频域偏置量,获取所述相邻基站中小 区 PRACH资源的位置,根据所述相邻基站中小区 PRACH资源的位置和所 述服务基站中小区下行控制信道资源的位置确定所述干扰的位置; 或者 所述确定模块进一步用于根据所述传输模块接收配置信息中相邻基站 中小区 Sounding RS配置信息的导频符号带宽配置和导频符号子帧配置,获 取所述相邻基站中小区的 Sounding RS资源的位置, 根据所述相邻基站中小 区的 Sounding RS资源的位置和所述服务基站中小区下行控制信道资源的 位置确定所述干扰的位置。
17、 根据权利要求 14所述的装置, 基特征在于,
所述处理模块进一步用于根据所述相邻基站中小区的上行控制资源的 循环移位序列和正交码序列, 获取所述干扰的位置的干扰比特接收功率, 根据接收到总信号的功率与所述干扰比特接收功率,获取所述 UE所在的服 务基站中小区所发送的下行数据信号功率, 根据所述下行数据信号功率获 取下行数据信号; 或者
所述处理模块进一步用于根据所述相邻基站中小区 PRACH 的接入前 导码配置, 获取所述干扰的位置的干扰比特接收功率, 根据接收到总信号 的功率与所述干扰比特接收功率,获取所述 UE所在的服务基站中小区所发 送的下行数据信号功率, 根据所述下行数据信号功率获取下行数据信号; 或者
所述处理模块进一步用于根据所述相邻基站中小区的 Sounding RS码 序列进行码序列相关性操作, 获取所述干扰的位置的干扰比特接收功率, 根据接收总信号的功率和所述干扰比特接收功率,获取所述 UE所在的服务 基站中小区所发送的下行数据信号功率, 根据所述下行数据信号功率获取 下行数据信号。
18、 一种干扰处理装置, 其特征在于, 包括:
收发模块, 用于接收相邻基站中小区配置信息, 所述相邻基站中小区 配置信息包括所述相邻基站中小区的上行控制信道配置信息或下行控制信 道配置信息或干扰的频域或时域配置信息;
分配模块, 用于根据所述相邻基站中小区配置信息和所述服务基站中 小区的配置信息确定资源位置的重叠部分, 进行资源分配; 其中, 进一步, 所述分配模块配用于不把所述服务基站中小区与所述相邻基 站中小区的配置信息中资源位置重叠部分分配给所述服务基站。
19、 根据权利要求 18所述的装置, 其特征在于, 所述装置还包括: 调整模块, 用于根据所述相邻基站中小区配置信息调整所述服务基站 中小区配置信息;
所述收发模块还用于将所述调整模块调整后的所述服务基站中小区配 置信息发送给用户终端 UE, 其中,
所述调整模块调整的所述服务基站中小区配置信息中不包括所述服务 基站中小区配置信息与所述相邻基站中小区配置信息中资源位置的重叠部 分。
20、 根据权利要求 18所述的装置, 其特征在于,
所述分配模块进一步用于当所述服务基站为下行控制信道分配资源 时, 与所述相邻基站中小区的上行控制信道配置信息中资源位置和所述服 务基站中小区的下行控制信道配置信息中资源位置的重叠部分, 不分配给 所述服务基站中小区的下行控制信道; 或者
所述分配模块进一步用于当所述服务基站为上行控制信道分配资源 时, 与所述相邻基站中小区的下行控制信道配置信息中资源位置和所述服 务基站中小区的上行控制信道配置信息中资源位置的重叠部分, 不分配给 所述服务基站中小区的上行控制信道; 或者
所述分配模块进一步用于当所述服务基站为下行控制信道分配资源 时, 与所述相邻基站中小区干扰的频域或时域配置信息中资源位置与服务 基站中小区下行控制信道中资源位置的重叠部分, 或者所述相邻基站干扰 的频域或时域配置信息中资源位置与服务基站中小区下行控制信道配置信 息中资源位置的重叠部分, 不分配给所述服务基站中小区的下行控制信道; 或者 所述分配模块进一步用于当所述服务基站为上行控制信道分配资源 时, 不把与所述相邻基站中小区的干扰的频域或时域配置信息中资源位置 与所述服务基站中小区上行控制信道配置信息中资源位置的重叠部分, 或 者所述相邻基站干扰的频域或时域资源的配置信息中资源位置与所述服务 基站中小区上行控制信道配置信息中资源位置的重叠部分, 不分配给所述 服务基站的上行控制信道。
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CN102469466A (zh) | 2012-05-23 |
WO2012062226A3 (zh) | 2012-06-28 |
EP2627141A4 (en) | 2013-12-04 |
EP2627141B1 (en) | 2019-07-24 |
EP2627141A2 (en) | 2013-08-14 |
EP2922358A1 (en) | 2015-09-23 |
CN102469466B (zh) | 2015-05-06 |
EP2922358B1 (en) | 2019-05-22 |
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