WO2011098042A1 - Procédé et appareil pour coordination de ressources dans un système de communication - Google Patents

Procédé et appareil pour coordination de ressources dans un système de communication Download PDF

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Publication number
WO2011098042A1
WO2011098042A1 PCT/CN2011/070934 CN2011070934W WO2011098042A1 WO 2011098042 A1 WO2011098042 A1 WO 2011098042A1 CN 2011070934 W CN2011070934 W CN 2011070934W WO 2011098042 A1 WO2011098042 A1 WO 2011098042A1
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WIPO (PCT)
Prior art keywords
base station
resource
configuration
configuration information
pucch
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PCT/CN2011/070934
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English (en)
Chinese (zh)
Inventor
万蕾
余政
闫志宇
马莎
任晓涛
薛丽霞
陈小波
周明宇
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华为技术有限公司
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Publication of WO2011098042A1 publication Critical patent/WO2011098042A1/fr

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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
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a resource coordination method and apparatus in a communication system. Background technique
  • a base station configures an uplink carrier radio resource for the base station serving UE, and the radio resource is determined by one or a combination of a time domain resource, a frequency domain resource, a code domain resource, and a power resource.
  • the time domain resources include OFDM symbols, time slots, subframes, frames, time symbols, etc.; frequency resources include subcarriers, carriers, frequency bands, subbands, etc.; code domain resources include codeword index, code length, cyclic shift, etc.;
  • the resources include power, power adjustment commands, and the like;
  • the uplink carrier radio resources include a Physical Uplink Control Channel (PUCCH), a Physical Random Access Channel (PRACH), and a Sounding Reference Symbol (Sounding Reference Symbol, respectively).
  • SRS Physical Uplink Shared Channel
  • the resources of the PRACH are configured by the high layer signaling of the system, and the resources of the SRS are set by the cell-specific cell-specific SRS parameters.
  • Embodiments of the present invention provide a resource coordination method in a communication system, and improve a communication system. The reliability of the control channel detection.
  • a method for resource coordination in a communication system including:
  • the first base station acquires configuration information of the radio resource of the second base station
  • the first base station learns the wireless configuration resource of the second base station according to the configuration information of the radio resource of the second base station;
  • the first base station does not perform data scheduling in the wireless configuration resource of the second base station according to the learned wireless configuration resource of the second base station.
  • a method for resource coordination in a communication system including:
  • the first base station serving UE receives configuration information of the radio resource of the second base station
  • the first base station serving UE learns the wireless configuration resource of the second base station according to the configuration information of the radio resource of the second base station;
  • the first base station serving the UE when the radio configuration resource of the first base station serving UE and the radio configuration resource of the second base station have overlapping resources on the subframe, the A base station serving UE does not transmit data on the overlapping resources of the subframe, or the first base station serves the UE not transmitting data on the subframe.
  • a base station including:
  • a first module configured to acquire configuration information of a radio resource of the second base station
  • a second module configured to learn, according to the configuration information of the radio resource of the second base station that is acquired by the first module, a radio configuration resource of the second base station;
  • the processing module is configured to perform data scheduling in the wireless configuration resource of the second base station according to the wireless configuration resource of the second base station that is learned by the second module.
  • a user terminal including:
  • a receiving module configured to receive configuration information of a radio resource of the second base station
  • a first processing module configured to learn, according to configuration information of the radio resource received by the receiving module, a radio configuration resource of the second base station;
  • a second processing module configured to: according to the wireless configuration resource learned by the first processing module, if the wireless configuration resource of the user terminal and the wireless configuration resource of the second base station have overlapping resources on a subframe, Data is transmitted or not transmitted on overlapping resources of the subframe.
  • the present invention provides a method for coordinating resources in a communication system, where a first base station acquires configuration information of a radio resource of a second base station, and the first base station learns a second base station according to configuration information of radio resources of the second base station.
  • the wireless configuration resource, the first base station does not perform data scheduling in the wireless configuration resource of the second base station according to the learned wireless configuration resource of the second base station. Therefore, the interference of the macro base station serving UE PUSCH transmission to the low power base station serving UE PUCCH transmission is avoided or reduced, and the reliability of the control channel detection and the efficiency of resource multiplexing in the communication system are improved.
  • FIG. 1 is a schematic flowchart of an embodiment of a method for coordinating PUCCH resources and PUSCH resources between base stations in a communication system according to the present invention
  • FIG. 2 is a schematic flowchart of an embodiment of a method for coordinating PUCCH resources and PUSCH resources between base stations in another communication system according to the present invention
  • 2a is a schematic diagram of coordinating PUCCH resources and PUSCH resources between a macro base station and a low power base station according to an embodiment of the present invention
  • 2b is a schematic flowchart of an embodiment of a method for coordinating PUCCH resources and PUSCH resources between base stations in another communication system according to the present invention
  • FIG. 3 is a schematic flowchart of an embodiment of a method for coordinating PUCCH resources and PUSCH resources between base stations in another communication system according to the present invention
  • FIG. 3a is a schematic diagram of performing coordination between PUCCH resources and PUSCH resources between another macro base station and a low power base station according to an embodiment of the present invention
  • 3b is a schematic flowchart of an embodiment of a method for coordinating PUCCH resources and PUSCH resources between base stations in another communication system according to the present invention
  • FIG. 4 is a schematic diagram of configuring PRACH resources and PUSCH resources between base stations in a communication system according to the present invention. Schematic diagram of the process of the coordination method embodiment;
  • 4a is a schematic diagram of coordination between a PRACH resource and a PUSCH resource between a macro base station and a low power base station according to an embodiment of the present invention
  • 4b is a schematic flowchart of a method for configuring a PRACH resource and PUSCH resource coordination method between base stations in another communication system according to the present invention
  • FIG. 5 is a schematic flowchart of an embodiment of a method for coordinating PRACH resources and PUSCH resources between base stations in another communication system according to the present invention
  • 5a is a schematic diagram of coordination between a PRACH resource and a PUSCH resource between another macro base station and a low power base station according to an embodiment of the present invention
  • FIG. 5 is a schematic flowchart of a method for configuring a PRACH resource and PUSCH resource coordination method between base stations in another communication system according to the present invention
  • FIG. 6 is a schematic flowchart of an embodiment of a method for coordinating SRS resources, PUSCH resources, and PUCCH resources between base stations in a communication system according to the present invention
  • 6a is a schematic diagram of coordination between SRS resources, PUSCH resources, and PUCCH resources between a macro base station and a low power base station according to an embodiment of the present invention
  • 6b is a schematic flowchart of an embodiment of a method for coordinating SRS resources, PUSCH resources, and PUCCH resources between base stations in another communication system according to the present invention
  • FIG. 7 is a schematic flowchart of an embodiment of a method for coordinating SRS resources, PUSCH resources, and PUCCH resources between base stations in another communication system according to the present invention
  • FIG. 7a is a schematic diagram of coordination between SRS resources, PUSCH resources, and PUCCH resources between another macro base station and a low power base station according to an embodiment of the present invention
  • FIG. 7b is a schematic flowchart of an embodiment of a method for coordinating SRS resources, PUSCH resources, and PUCCH resources between base stations in another communication system according to the present invention
  • FIG. 8 is a schematic flowchart of a method for configuring a PUCCH resource and an SRS resource coordination method between base stations in another communication system according to the present invention
  • FIG. 8 is a schematic diagram of coordination between PUCCH resources and SRS resources between a macro base station and a low power base station according to an embodiment of the present invention
  • FIG. 8b illustrates a PUCCH resource and an SRS resource association between base stations in another communication system of the present invention
  • FIG. 9 is a schematic flowchart of a method for configuring a PUCCH resource and an SRS resource coordination method between base stations in another communication system according to the present invention.
  • FIG. 9a is a schematic diagram of coordination between PUCCH resources and SRS resources between another macro base station and a low power base station according to an embodiment of the present invention.
  • 9b is a schematic flowchart of a method for configuring a PUCCH resource and an SRS resource coordination method between base stations in another communication system according to the present invention
  • FIG. 10 is a schematic diagram of performing PUCCH and PRACH resource coordination between a macro base station and a low power base station according to an embodiment of the present invention
  • FIG. 11 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • 11a is a schematic structural diagram of another base station according to an embodiment of the present invention.
  • FIG. 12 is a schematic structural diagram of a terminal according to an embodiment of the present invention. detailed description
  • the embodiment of the present invention is described by taking an LTE wireless communication system as an example, but the method of the present invention is applicable to wireless communication systems such as WIMAX, CDMA, and UMTS.
  • the macro base station described in the embodiment of the present invention does not perform data scheduling on the radio configuration resource of the low-power base station, that is, the macro base station does not multiplex the radio configuration resource of the low-power base station;
  • the macro base station can perform the data scheduling in the low power mode on the radio configuration resource of the low power base station, which means that the macro base station can multiplex the radio configuration resource of the low power base station; the low power described in the embodiment of the present invention
  • the data scheduling (or transmission) of the mode means that the transmission power of the macro base station serving UE transmitting in the low power mode is low enough on the configuration resources of the low power base station until it is scheduled to be allocated on the configuration resources of the low power base station.
  • Low power base station serving UE with low interference It can be ensured that the data transmission of the low-power base station serving UE can meet the minimum performance requirement required for the UE data transmission.
  • the embodiment of the present invention is only a method for coordinating radio resources between a macro base station and a low power base station, but the method of the present invention is not limited to a radio resource coordination method between a macro base station and a low power base station, and is also applicable to a low power base station and a low power base station. Between the macro base station and the macro base station, it will not be described here.
  • FIG. 1 is a schematic diagram of an embodiment of a method for coordinating PUCCH resources and PUSCH resources between base stations in a communication system according to the present invention, as follows:
  • the first base station acquires configuration information of a radio resource of the second base station.
  • the first base station learns a wireless configuration resource of the second base station according to the configuration information of the radio resource of the second base station.
  • the first base station performs data scheduling in a wireless configuration resource of the second base station according to the learned wireless configuration resource of the second base station.
  • the present invention provides a method for coordinating resources in a communication system, where a first base station acquires configuration information of a radio resource of a second base station, and the first base station learns a second base station according to configuration information of radio resources of the second base station.
  • the wireless configuration resource the first base station does not perform data scheduling in the wireless configuration resource of the second base station according to the learned wireless configuration resource of the second base station.
  • FIG. 2 is a schematic diagram of an embodiment of a method for coordinating PUCCH resources and PUSCH resources between base stations in another communication system according to the present invention, as follows:
  • 201 Perform interaction of configuration information of PUCCH resources between the macro base station and the low power base station through an X2 interface or a wireless air interface.
  • the macro base station acquires the configuration information of the PUCCH resource of the low-power base station, and the macro base station learns the PUCCH configuration resource of the low-power base station according to the configuration information of the PUCCH resource of the low-power base station; the configuration information of the PUCCH resource is different from the physical layer or the upper layer.
  • Parameter setting which may be the number of physical resource blocks occupied by PUCCH format 2/2a/2b, the number of physical resource blocks occupied by PUCCH, the cyclic shift value of PUCCH formatl/la/lb in the hybrid resource block, and the dynamic scheduling corresponding
  • the data scheduling is not performed in the PUCCH configuration resource of the low-power base station.
  • the PUCCH configuration resource configured by the low-power base station is obtained according to the configuration information of the resource, for example, the area "3" is configured by the low-power base station.
  • the PUCCH configures resources, and the macro base station avoids data scheduling on the area "3" when the macro base station serves the UE for uplink data scheduling.
  • the PUSCH transmission of the macro base station serving the UE does not interfere with the PUCCH transmission of the low-power base station serving UE, and ensures the reliability of the UE PUCCH transmission served by the low-power base station. .
  • the PUCCH configuration resource of the macro base station is determined according to the configuration information of the PUCCH resource of the macro base station, and the low power base station is not in the macro base station when the low power base station serves the UE for uplink data scheduling. Data scheduling is performed on the PUCCH configuration resource.
  • FIG. 3 is a schematic diagram of an embodiment of a method for coordinating PUCCH resources and PUSCH resources between base stations in another communication system according to the present invention. Steps 301 and 302 in this embodiment are similar to steps 201 and 202 in the embodiment shown in FIG. The step is 303, as follows:
  • the data scheduling may be performed on the PUCCH configuration resource of the low-power base station, and the macro base station serves the UE in the low-power base station.
  • the PUCCH configuration resource uses a low power mode for data transmission.
  • the PUCCH configuration resource of the low-power base station is obtained according to the configuration information of the resource, for example, the area "3" is configured for the PUCCH of the low-power base station. Resources.
  • the macro base station schedules the UE to perform PUSCH transmission on the area 3, if the macro base station does not perform the PUCCH transmission of the low power base station serving UE If the interference is coordinated, the PUSCH transmission of the macro base station serving UE may interfere with the PUCCH transmission of the low power base station serving UE, thereby reducing the reliability of the PUCCH transmission of the low power base station serving UE.
  • the macro base station performs interference coordination on the PUCCH transmission of the low-power base station serving UE
  • the macro base station serves the UE to use the low-power mode for data transmission on the configuration resources of the low-power base station, that is, the macro base station serves the UE to reduce the PUSCH transmission power. Therefore, the interference to the PUCCH transmission of the low power base station serving UE is reduced, and the reliability of the PUCCH transmission of the low power base station serving UE is ensured.
  • the embodiment of the present invention may further determine a PUCCH configuration resource of a macro base station according to configuration information of a PUCCH resource of a macro base station, where the low power base station performs uplink data scheduling for the low power base station serving UE, The data scheduling is performed on the PUCCH configuration resource, and the low-power base station serves the UE to use the low-power mode for data transmission on the PUCCH configuration resource of the macro base station.
  • This method is similar to the embodiment shown in FIG. 3, and details are not described herein again.
  • the radio resources of the uplink carrier include radio resources such as PUCCH and PUSCH.
  • the macro base station serving UE and the low-power base station serve the UE to multiplex the resources of the uplink carrier, in order to ensure the reliability of the low-power base station PUCCH transmission, the macro base station does not perform data scheduling on the PUCCH configuration resource configured by the low-power base station, or enables the macro base station to serve
  • the UE uses the low-power mode for data transmission on the PUCCH configuration resource configured by the low-power base station, thereby eliminating or reducing the interference of the PUSCH transmission of the macro base station serving UE and the PUCCH transmission of the low-power base station serving UE, and improving the uplink resource. usage efficiency.
  • the present invention provides a method for coordinating the allocation of PUCCH resources and PUSCH resources between base stations in a communication system.
  • the macro base station and the low power base station perform the interaction of the configuration information of the PUCCH resources through the X2 interface or the wireless air interface, and learn the low power base station.
  • the PUCCH configuration resource is configured according to the PUCCH configuration resource of the low-power base station, and the macro base station performs the uplink data scheduling for the macro base station serving the UE, so that the macro base station does not perform data scheduling on the PUCCH configuration resource of the low-power base station, or enables the macro base station to serve the UE.
  • the low power mode is used for data transmission on the PUCCH configuration resource configured by the low power base station, thereby avoiding or reducing the interference of the macro base station serving UE PUSCH transmission to the low power base station serving UE PUCCH transmission, and improving the control channel detection in the communication system. Reliability and efficiency of resource reuse.
  • FIG. 4 is a schematic diagram of a method for configuring a PRACH resource and a PUSCH resource between base stations in a communication system according to the present invention, as follows: 401. Perform interaction of configuration information of PRACH resources between the macro base station and the low-power base station through an X2 interface or a wireless air interface.
  • the macro base station learns the PRACH configuration resource of the low power base station according to the configuration information of the low power base station PRACH resource.
  • the configuration information of the resource may be set by different system parameters, such as an index index of the RACH configuration, a physical resource block index of the first RACH, an uplink carrier bandwidth of the low power base station, and an uplink carrier center frequency of the low power base station.
  • the data scheduling is not performed on the PRACH configuration resource of the low-power base station.
  • the macro base station and the low-power base station perform the interaction of the configuration information of the PRACH resources.
  • the macro base station learns the PRACH configuration resource of the low-power base station, and the area “4” is the low power.
  • the macro base station may not perform data scheduling on the area "4". Therefore, the PUSCH transmission of the macro base station serving UE does not interfere with the PRACH transmission of the low power base station serving UE.
  • the embodiment of the present invention may further obtain the PRACH configuration resource of the macro base station according to the configuration information of the PRACH resource of the macro base station, and the low power base station may not be in the macro base when the low power base station serves the UE for uplink data scheduling. Data scheduling is performed on the station's PRACH configuration resource.
  • This method is similar to the embodiment shown in FIG. 4, and details are not described herein again.
  • FIG. 5 is a schematic diagram of a method for configuring a PRACH resource and a PUSCH resource in a communication system according to another embodiment of the present invention. Steps 501 and 502 are similar to steps 401 and 402 in the embodiment shown in FIG. Lie in:
  • the data scheduling may be performed on the PRACH configuration resource configured by the low-power base station, and the macro base station serves the UE at a low level.
  • the low power mode is used for data transmission on the PRACH configuration resource area of the power base station.
  • the configuration information of the PRACH resource is exchanged between the macro base station and the low power base station.
  • the macro base station learns the PRACH configuration resources configured by the low-power base station, and the area "4" is the PRACH configuration resource configured by the low-power base station, and the macro base station serves the UE scheduling for the macro base station.
  • the PUSCH resource is uplinked, data scheduling may be performed on the area "4", and the macro base station serving UE performs data transmission in the low power mode on the PRACH configuration resource of the low power base station. Therefore, the PUSCH transmission of the macro base station serving UE only generates low interference to the PRACH transmission of the low power base station serving UE.
  • the PRACH configuration resource of the macro base station may be obtained according to the configuration information of the PRACH resource of the macro base station, and the low power base station may perform the uplink data scheduling for the low power base station serving the UE.
  • the data scheduling is performed on the PRACH configuration resource of the station, and the low-power base station serves the UE to perform data transmission in the low power mode on the PRACH configuration resource of the macro base station.
  • the present invention provides a method for coordinating PRACH resources and PUSCH resources between base stations in a communication system.
  • the macro base station and the low power base station perform PRUR resource configuration information exchange through an X2 interface or a wireless air interface, according to the low power base station.
  • the macro base station may not perform data scheduling on the PRACH configuration resource configured by the low power base station, or enable the macro base station to serve the UE for the macro base station.
  • the data is scheduled on the PRACH configuration resource configured by the low-power base station, and the macro base station serves the UE to perform data transmission in the low-power mode on the PRACH configuration resource configured by the low-power base station, thereby avoiding or reducing the macro base station serving the UE PUSCH transmission and the low-power base station.
  • the interference of serving the PRACH transmission of the UE improves the reliability of the control channel detection and the efficiency of resource reuse in the communication system.
  • the embodiment of the invention further provides a resource coordination method in a communication system, which is characterized as follows:
  • the first base station serving UE receives configuration information of the radio resource of the second base station
  • the first base station serving UE learns the wireless configuration resource of the second base station according to the configuration information of the radio resource of the second base station;
  • the first base station serving the UE according to the learned wireless configuration resource of the second base station, when the radio configuration resource of the first base station serving UE and the radio configuration resource of the second base station have overlapping resources on the subframe, the A base station serving UE does not transmit data on the overlapping resources of the subframe, or the A base station serves the UE without transmitting data.
  • FIG. 6 is a schematic diagram of an embodiment of a method for coordinating SRS resources, PUSCH resources, and PUCCH resources between base stations in a communication system according to the present invention, as follows:
  • the configuration information of the cell-specific SRS resource is exchanged between the macro base station and the low-power base station through the X2 interface or the wireless air interface.
  • the macro base station learns, according to the configuration information of the cell-specific SRS resource of the low-power base station, the SRS configuration resource configured by the low-power base station.
  • the cell-specific configuration information is set by different parameters, such as the configuration period of the SRS, the subframe offset of the SRS, the uplink carrier bandwidth of the low-power base station, and the uplink carrier center frequency of the low-power base station.
  • the macro base station serves, for the macro base station, configuration information of the SRS resource of the low-power base station broadcasted or unicast by the UE;
  • the configuration information of the SRS resources of the low-power base station broadcasted by the macro base station may be carried in a master information block (MIB), a secondary information block (SIB), or a radio resource control (Radio Resource Control) configured by the macro base station.
  • MIB master information block
  • SIB secondary information block
  • RRC radio resource control
  • the macro base station service UE receives configuration information of SRS resources of the low power base station broadcasted or unicast by the macro base station;
  • the macro base station when the macro base station serves the UE PUSCH resource and the low-power base station SRS configuration resource has overlapping resources on the subframe, the macro base station serves the UE in the subframe.
  • the PUSCH data is not transmitted on the overlapping resources.
  • the resource may be configured according to the SRS configured by the low-power base station, where the macro base station serves the UE and the SRS configuration resource configured by the low-power base station has an overlapping resource, where the macro base station serves the UE.
  • the PUCCH data is not transmitted on the overlapping resources of the subframe.
  • the SRS configuration resource configured by the low power base station is obtained according to the configuration information of the SRS resource of the low power base station, for example, in a certain subframe.
  • area "5" cell-specific SRS allocation for low power base stations If the macro base station serves the UE PUSCH resource or the PUCCH resource has an overlapping resource with the area "5", the macro base station serves the UE not transmitting the PUSCH or PUCCH data on the overlapping resources of the subframe, thereby avoiding the macro base station.
  • the PUSCH or PUCCH transmitted by the UE interferes with the SRS signal sent by the low power base station UE.
  • the embodiment of the present invention may further determine, according to the configuration information of the cell-specific SRS resource of the macro base station, the SRS configuration resource configured by the macro base station, where the low-power base station serves the low-power base station to serve the UE broadcast or the unicast macro base station cell specific.
  • the configuration information of the SRS resource according to the obtained configuration information of the SRS resource specific to the macro base station cell, if the low power base station serves the UE PUSCH resource or the PUCCH resource and the macro base station SRS configuration resource have overlapping resources on the subframe, The low power base station serving UE does not transmit PUSCH or PUCCH data on the overlapping resources of the subframe.
  • the method is similar to the embodiment shown in FIG. 6, and details are not described herein again.
  • the present invention provides a method for coordinating SRS radio resources with PUSCH and PUCCH resources between base stations in a communication system, and the SRS resources of the low power base station are configured according to the configuration information of the SRS resources exchanged between the macro base station and the low power base station.
  • the configuration information if the macro base station serves the UE PUSCH resource or the PUCCH resource and the low power base station SRS configuration resource have overlapping resources on the subframe, the macro base station serving UE does not transmit the PUSCH or PUCCH data on the overlapping resources of the subframe. Therefore, interference between the macro base station serving UE PUSCH transmission or PUCCH transmission and the low power base station serving UE SRS transmission is avoided, and the reliability of SRS signal detection and the efficiency of resource multiplexing in the communication system are improved.
  • FIG. 7 is a schematic diagram of an embodiment of a method for coordinating SRS resources, PUSCH resources, and PUCCH resources between base stations in another communication system according to the present invention. This embodiment is similar to the embodiment shown in FIG. 6, except that:
  • the macro base station serves the UE.
  • the PUSCH data transmission is performed in the low power mode on the overlapping resources of the subframe.
  • step 705 according to the configuration information of the SRS resource configured by the low power base station, if the macro base station serves the PUCCH resource of the UE and the low power base station SRS configuration resource is in the sub When there is an overlapping resource on the frame, the macro base station serves the UE to perform PUCCH data transmission in the low power mode on the overlapping resources of the subframe.
  • the SRS configuration resource of the low power base station is obtained according to the configuration information of the SRS resource of the low power base station, for example, the area "5"
  • the cell-specific SRS configuration resource configured for the low-power base station if the macro base station serves the UE PUSCH resource or the PUCCH resource and the area "5" has overlapping resources on the subframe, the macro base station serves the UE in the overlap of the subframe.
  • the PUSCH or PUCCH data transmission may be performed on the resource in a low-power mode, so that the PUSCH or the PUCCH transmitted by the macro base station UE generates low interference to the SRS signal sent by the low-power base station UE.
  • the embodiment of the present invention may further determine an SRS configuration resource of a macro base station according to configuration information of a cell-specific SRS resource of a macro base station, where the low-power base station serves the UE broadcast or unicast macro base station cell-specific for the low-power base station.
  • the configuration information of the SRS resource according to the obtained configuration information of the SRS resource specific to the macro base station cell, if the low power base station serves the UE PUSCH resource or the PUCCH resource and the macro base station SRS configuration resource have overlapping resources on the subframe,
  • the low power base station serves the UE to perform PUSCH or PUCCH data transmission in a low power mode on the overlapping resources of the subframe. This method is similar to the embodiment shown in FIG. 7, and will not be described again.
  • the present invention provides a method for coordinating SRS radio resources with PUSCH and PUCCH resources between base stations in a communication system, and configuring SRS resources through the interaction between the macro base station and the low power base station according to the SRS resources of the low power base station If the macro base station serves the UE PUSCH resource or the PUCCH resource and the low power base station SRS configuration resource have overlapping resources on the subframe, the macro base station serves the UE to use low on the overlapping resources of the subframe.
  • the power mode performs PUSCH or PUCCH data transmission, so that the macro base station serves low interference between the UE PUSCH transmission or the PUCCH transmission and the low power base station serving UE SRS transmission, thereby improving the reliability and resource recovery of the SRS signal detection in the communication system. Efficiency used.
  • FIG. 8 is a schematic diagram of a method for configuring a PUCCH resource and an SRS resource coordination method between base stations in another communication system according to the present invention, as follows:
  • the configuration information of the PUCCH resource is exchanged between the macro base station and the low power base station through the X2 interface or the wireless air interface. 802.
  • the macro base station learns a PUCCH configuration resource of the low power base station according to the configuration information of the PUCCH resource of the low power base station.
  • the configuration information of the PUCCH resource is set by different parameters in the physical layer or the upper layer.
  • the parameter may be the number of physical resource blocks occupied by PUCCH format 2/2a/2b, the number of physical resource blocks occupied by PUCCH, and PUCCH formatl/la/lb.
  • the macro base station serves, for the macro base station, configuration information of a PUCCH resource that the UE broadcasts or unicasts the low-power base station;
  • the configuration information of the PUCCH resource of the low-power base station broadcasted by the macro base station may be carried in a master information block ( ⁇ ), a secondary information block (SIB), or a radio resource control (Radio Resource Control) configured by the macro base station.
  • ⁇ master information block
  • SIB secondary information block
  • RRC radio resource control
  • the macro base station service UE receives configuration information of a PUCCH resource of the low power base station broadcasted or unicast by the macro base station;
  • the macro base station serving the UE SRS transmission resource and the low-power base station PUCCH configuration resource have overlapping resources on the subframe, the macro base station serving UE does not transmit the SRS on the subframe. signal.
  • the PUCCH configuration resource of the low-power base station is obtained according to the configuration information of the PUCCH resource of the low-power base station, for example, the area "3" is The PUCCH configuration resource configured by the low power base station, if the macro base station serves the UE SRS transmission resource and the area "3" has overlapping resources on the subframe, the macro base station serves the UE not transmitting the SRS signal on the subframe, thereby avoiding the Acer Interference occurs between the station serving UE SRS transmission and the low power base station serving UE PUCCH transmission.
  • the embodiment of the present invention may further determine, according to the configuration information of the PUCCH resource of the macro base station, the PUCCH configuration resource configured by the macro base station, where the low-power base station serves the low-power base station to broadcast the PUCCH resource of the UE or the unicast macro base station.
  • Configuration information according to the obtained configuration information of the PUCCH resource of the macro base station, if the low power base station serves the UE SRS transmission resource and the macro base station When the PUCCH configuration resource has overlapping resources on the subframe, the low power base station serves the UE not transmitting the SRS signal on the subframe.
  • the method is similar to the embodiment shown in FIG. 8, and details are not described herein again.
  • the present invention provides a method for coordinating PUCCH resources and SRS radio resources between base stations in a communication system, and configuring PUCCH resources based on the interaction between the macro base station and the low power base station according to the configuration of the PUCCH resources of the low power base station.
  • the information if the macro base station serves the UE SRS transmission resource and the PUCCH configuration resource of the low power base station has overlapping resources on the subframe, the macro base station serves the UE not transmitting the SRS signal on the subframe, thereby avoiding causing the macro base station to serve the UE SRS. Interference occurs between the transmission and the low-power base station serving UE PUCCH transmission, which improves the reliability of the PUCCH signal detection and the efficiency of resource reuse in the communication system.
  • FIG. 9 is a schematic diagram of a method for configuring a PUCCH resource and an SRS resource coordination method between base stations in another communication system according to the present invention. The embodiment is similar to the embodiment shown in FIG. 8 except that:
  • the macro base station serves the UESRS transmission resource and the PUCCH configuration resource of the low-power base station has overlapping resources on the subframe.
  • SRS signal transmission is performed in a low power mode.
  • the PUCCH configuration resource configured by the low-power base station for example, the area "3" is obtained according to the configuration information of the PUCCH resource of the low-power base station.
  • the PUCCH configuration resource configured for the low power base station if the macro base station serves the UE SRS transmission resource and the area "3" has overlapping resources on the subframe, the macro base station serves the UE to use the low power mode for the SRS signal on the subframe.
  • the transmission causes low interference between the macro base station serving UE SRS transmission and the low power base station serving UE PUCCH transmission.
  • the embodiment of the present invention may further determine a PUCCH configuration resource of the macro base station according to the configuration information of the PUCCH resource of the macro base station, where the low power base station serves the UE to broadcast the PUCCH resource of the UE broadcast or the unicast macro base station.
  • the information according to the obtained configuration information of the PUCCH resource of the macro base station, if the low power base station serving UE SRS transmission resource and the macro base station PUCCH configuration resource have overlapping resources on the subframe, the low power base station serves the UE in the subframe.
  • the upper port uses the low power mode for SRS signal transmission.
  • the method is similar to the embodiment shown in FIG. 9, and details are not described herein again.
  • the present invention provides a PUCCH resource and an SRS radio resource between base stations in a communication system.
  • the source coordination method the configuration information of the PUCCH resource exchanged between the macro base station and the low power base station, according to the configuration information of the PUCCH resource of the low power base station, if the macro base station serves the SRS transmission resource of the UE and the PUCCH configured by the low power base station.
  • the configuration resource has overlapping resources on the subframe
  • the macro base station serves the UE to perform SRS signal transmission in the low power mode on the subframe, so that the macro base station serves the SRS transmission of the UE and the low power base station serves the PUCCH transmission of the UE.
  • Low interference is generated, which improves the reliability of PUCCH signal detection and the efficiency of resource reuse in the communication system.
  • FIG. 10 is a schematic diagram of a method for coordinating and coordinating PUCCH and PRACH resources between a macro base station and a low power base station according to an embodiment of the present invention, as follows:
  • the macro base station and the low power base station configure PUCCH resources and PRACH resources by using frequency division multiplexing (FDM).
  • FDM frequency division multiplexing
  • the macro base station and the low power base station may select a subband resource on the uplink carrier according to an implicit or explicit manner, and configure a PUCCH resource and a PRACH resource on the selected subband resource.
  • the manner of implicitly selecting the subband resource may include: determining, by the macro base station or the low power base station, the uplink subband resource size and the subband resource according to the subband size used by the downlink control channel transmission and the downlink and uplink duplex frequency intervals configured by the system default configuration. Center frequency.
  • the uplink sub-band resource size is the same as the sub-band size used for downlink control channel transmission, and the center frequency of the uplink sub-band resource and the center frequency of the sub-band resource used by the downlink control channel are the default configuration of the system. Uplink downlink duplex frequency interval.
  • the manner of explicitly selecting the sub-bands may include: sub-band resource information explicitly selected by one of the macro base station and the low-power base station and the sub-band resource information selected by the macro base station and the low-power base station.
  • the sub-band resource information may include: a bandwidth of the sub-band resource, a center frequency of the sub-band resource, or an Absolute Radio Frequency Channel Number.
  • One of the macro base station and the low power base station may explicitly indicate the subband resource information selected by the X2 interface or the air interface, or the macro base station and the low power base station may exchange the subband resource information through the X2 interface or the air interface.
  • the sub-band resources selected by the macro base station and the sub-band resources selected by the low-power base station are orthogonal to each other, that is, the sub-band resources selected by the macro base station and the sub-band resources selected by the low-power base station do not overlap.
  • the macro base station or the low power base station may configure the PUSCH resource only on the subband resource selected by the base station, or may be in addition to the macro.
  • the PUSCH resource is configured in the bandwidth resource of the uplink carrier except the PUCCH resource configured by the base station and the low power base station.
  • an uplink carrier is divided into two sub-band resources of a macro base station and a low-power base station, and the macro base station configures a region "1" in the selected sub-band resource as a PUCCH resource, and the low-power base station selects a sub-band resource.
  • the area "3" is configured as a PUCCH resource, and the sub-band resource selected by the macro base station and the sub-band resource selected by the low-power base station do not overlap, and the macro base station can configure the area "2" in the sub-band resource selected by the base station as the PUSCH resource.
  • the low-power base station may configure the area "4" in the sub-band resource selected by the base station as a PUSCH resource, and the macro base station or the low-power base station may also configure the area 2 and the area 4 as PUSCH resources.
  • the macro base station and the low power base station configure PUCCH resources and PRACH resources by means of frequency division multiplexing.
  • the macro base station and the low power base station may select the subband resource on the uplink carrier in an implicit or explicit manner, and configure the PUCCH resource and the PRACH resource on the selected subband bandwidth resource.
  • the PUCCH resource and the PRACH resource configured by the macro base station are completely orthogonal to the PUCCH resource and the PRACH resource configured by the low power base station, so as to prevent the PUCCH and PRACH transmission of the UE served by the macro base station and the PUCCH and PRACH transmission of the UE served by the low power base station.
  • the interference improves the reliability of control channel detection and the efficiency of resource reuse in the communication system.
  • FIG. 11 is a schematic structural diagram of a base station, as follows:
  • the first module 1101 is configured to acquire configuration information of a radio resource of the second base station.
  • the second module 1102 is configured to learn, according to configuration information of the radio resource of the second base station that is acquired by the first module, a radio configuration resource of the second base station;
  • the processing module 1103 is configured to perform data scheduling in the wireless configuration resource of the second base station according to the wireless configuration resource of the second base station that is learned by the second module.
  • the second module is specifically configured to acquire configuration information of a PUCCH resource of a physical uplink control channel or configuration information of a PRACH resource of a physical random access channel;
  • the processing module is specifically configured to perform data scheduling in a PUCCH resource of the second base station according to the learned PUCCH resource of the second base station, or to use the PRACH resource of the second base station according to the learned, Data scheduling is not performed in the PRACH resource of the second base station.
  • the base station further includes: The third module is configured to exchange configuration information of the radio resource with the interface between the second base station and the base station, the X2 interface, or the air interface.
  • the present invention provides a method for coordinating resources in a communication system, where a first base station acquires configuration information of a radio resource of a second base station, and the first base station learns a second base station according to configuration information of radio resources of the second base station.
  • the wireless configuration resource the first base station does not perform data scheduling in the wireless configuration resource of the second base station according to the learned wireless configuration resource of the second base station.
  • FIG. 12 is a schematic structural diagram of a user terminal, as follows:
  • the receiving module 1201 is configured to receive configuration information of a radio resource of the second base station
  • the first processing module 1202 is configured to learn, according to configuration information of the radio resource received by the receiving module, a radio configuration resource of the second base station;
  • the second processing module 1203 is configured to: according to the wireless configuration resource that is learned by the first processing module, if the wireless configuration resource of the user terminal and the wireless configuration resource of the second base station have overlapping resources on the subframe, No data is transmitted or no data is transmitted on the overlapping resources of the subframe.
  • the second processing module is specifically configured to: when the PUSCH resource and the second base station have overlapping resources on the SRS resource subframe, The PUSCH data is not transmitted on the overlapping resource; or when the PUCCH resource and the SRS resource of the second base station have overlapping resources on the subframe, the PUCCH data is not transmitted on the overlapping resource.
  • the receiving module is specifically configured to receive configuration information of a PUCCH resource, where the second processing module is configured to not transmit when the SRS resource and the second base station PUCCH resource have overlapping resources on the subframe. SRS data.
  • the receiving module receives configuration information of a radio resource of a second base station that is broadcast or unicast by the first base station.
  • An embodiment of the present invention provides a method for coordinating SRS radio resources with PUSCH and PUCCH resources between base stations in a communication system, by using configuration information of SRS resources exchanged between the first base station and the second base station, according to the second base station.
  • the configuration information of the SRS resource if the PUSCH resource or the PUCCH resource of the first base station serving UE and the second base station SRS configuration resource have overlapping resources on the subframe, the first base station serves the UE on the overlapping resource of the subframe
  • the PUSCH or PUCCH data is not transmitted, thereby avoiding interference between the first base station serving UE PUSCH transmission or PUCCH transmission and the second base station serving UE SRS transmission, thereby improving reliability and resource multiplexing of SRS signal detection in the communication system. s efficiency.
  • the embodiment of the present invention further provides a method for configuring SRS radio resources and PUCCH resource coordination between base stations in a communication system, and configuring configuration information of PUCCH resources that are exchanged between the first base station and the second base station, according to the configuration information of the second base station
  • the configuration information of the PUCCH resource if the SRS resource of the first base station serving UE and the second base station PUCCH configuration resource have overlapping resources on the subframe, the first base station serving UE does not transmit the SRS on the subframe, thereby avoiding Interference occurs between the SRS transmission of a base station serving UE and the PUCCH transmission of the second base station serving UE, which improves the reliability of PUCCH signal detection and the efficiency of resource reuse in the communication system.
  • the base station involved in the embodiments of the present invention includes, but is not limited to, a base station, a base transceiver station, a wireless access point, a wireless radio head, and the like.
  • the embodiments of the present invention relate to a UE including a wireless transmitting and receiving device that is not limited to a mobile station, a computer terminal, a terminal, a palm device, an access point, or the like.
  • the present invention can be implemented by means of software and a necessary general hardware platform. Of course, hardware can also be used, but in many cases, the former is better. Implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium, including a plurality of instructions for making a A computer device (which may be a personal computer, server, or network device, etc.) performs the methods of various embodiments of the present invention.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

La présente invention concerne un procédé et un appareil destinés à coordonner les ressources configurées de canal physique de commande en liaison montante (PUCCH) et les ressources configurées de canal physique partagé en liaison montante (PUSCH) entre stations de base dans un système de communication. Le procédé comprend les étapes suivantes : une première station de base obtient les informations de configuration de ressources radio d'une seconde station de base (101); la première station de base obtient, selon les informations de configuration de ressources radio de la seconde station de base, les ressources radio configurées de la seconde station de base (102); la première station de base ne programme pas, selon les ressources configurées des ressources radio de la seconde station de base, les données dans les ressources radio configurées de la seconde station de base (103). Par conséquent, l'interférence de la transmission PUSCH de l'équipement de l'utilisateur (UE) servie par la première station de base à la transmission PUCCH de l'UE servie par la seconde station de base est évitée ou réduite et la fiabilité de la détection des canaux de commande et l'efficacité de la réutilisation des ressources dans le système de communication sont améliorées.
PCT/CN2011/070934 2010-02-12 2011-02-11 Procédé et appareil pour coordination de ressources dans un système de communication WO2011098042A1 (fr)

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