WO2014131190A1 - 一种减少控制信道干扰的方法、装置、设备及系统 - Google Patents

一种减少控制信道干扰的方法、装置、设备及系统 Download PDF

Info

Publication number
WO2014131190A1
WO2014131190A1 PCT/CN2013/072035 CN2013072035W WO2014131190A1 WO 2014131190 A1 WO2014131190 A1 WO 2014131190A1 CN 2013072035 W CN2013072035 W CN 2013072035W WO 2014131190 A1 WO2014131190 A1 WO 2014131190A1
Authority
WO
WIPO (PCT)
Prior art keywords
base station
configuration information
control channel
configuration
information
Prior art date
Application number
PCT/CN2013/072035
Other languages
English (en)
French (fr)
Inventor
权威
张戬
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to RU2015141617A priority Critical patent/RU2612399C1/ru
Priority to PCT/CN2013/072035 priority patent/WO2014131190A1/zh
Priority to EP13876499.8A priority patent/EP2958356A4/en
Priority to CN201380001958.6A priority patent/CN104322091B/zh
Publication of WO2014131190A1 publication Critical patent/WO2014131190A1/zh
Priority to US14/841,846 priority patent/US20150373731A1/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02Resource partitioning among network components, e.g. reuse partitioning
    • H04W16/10Dynamic resource partitioning
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/54Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08Configuration management of networks or network elements
    • H04L41/0803Configuration setting
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0032Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
    • H04L5/0035Resource allocation in a cooperative multipoint environment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058Allocation criteria
    • H04L5/0073Allocation arrangements that take into account other cell interferences
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signaling for the administration of the divided path
    • H04L5/0094Indication of how sub-channels of the path are allocated
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08Access point devices

Definitions

  • the present invention relates to the field of base station communication technologies, and in particular, to a method, device, device and system for reducing control channel interference. Background technique
  • LTE / LTE-A LTE, Long Term Evolution, Long Term Evolution; LTE-A,
  • the LTE-advanced, LTE Advanced Evolution) system is an example.
  • the system introduces an enhanced PDCCH (Physical Downlink Control Channel), which is called an Enhanced Physical Downlink Control Channel (EPDCCH).
  • EPDCCH Enhanced Physical Downlink Control Channel
  • LTE/LTE-A introduces ICIC (Intercell interference coordination) technology, in ICIC technology, current service
  • the base station (hereinafter referred to as the serving base station) transmits HII (High Interference Indication) information to the neighboring base stations of the serving base station (hereinafter referred to as the neighboring base stations), and the HII information is used to indicate the uplink resources of the serving base station.
  • HII High Interference Indication
  • the sensitivity of the PRB (Physical Resource Block) to the interference 1 means high interference sensitivity
  • the interference is interference caused by PRB from a cell under the neighboring base station.
  • the serving base station may also send RNTP (relative Narrowband Transmission Power) information to the neighboring base station to notify the neighboring base station of the PRB transmission power in the downlink resource, so that the neighboring base station knows the service from the service.
  • RNTP relative Narrowband Transmission Power
  • the possible interference level of the base station that is, whether the transmission power of the PRB exceeds a given threshold
  • 0 means that the transmission power of the PRB corresponding to 0 does not exceed a given threshold
  • 1 represents that the PRB corresponding to 1 is not guaranteed.
  • the transmit power is below a given threshold.
  • an object of embodiments of the present invention is to provide a method, apparatus, device, and system for reducing control channel interference, so as to effectively solve the problem that mutual control channels interfere with each other.
  • An embodiment of the present invention provides a method for reducing control channel interference, which is used in a base station, and the method includes:
  • the configuration information includes at least one of the following: a configuration period of the control channel, resource occupation indication information, and a configuration period start location, where the resource occupation indication information is used to indicate the configuration a physical resource block PRB occupied by the control channel in the period, where the configuration period start position is used to indicate a starting point corresponding to the beginning of the configuration period; and the configuration information is sent to the neighboring base station, so that the neighboring The base station adjusts according to the configuration information to reduce interference to the base station control channel.
  • the configuration period start position when the base station is synchronized with the neighboring base station, the configuration period start position includes a subframe number at the start of the configuration period; when the base station is out of synchronization with the neighboring base station, The configuration period start location includes a subframe number at the beginning of the configuration period plus an offset of the base station and the neighboring base station timing.
  • the configuration information further includes at least one of the following information:
  • Transmit power information of the PRB occupied by the control channel where the transmit power information of the PRB includes a comparison value between a transmit power value of the PRB and/or a transmit power value of the PRB and a set power threshold value;
  • search space type of the control channel, where the search space type includes a common search space or a user equipment UE specific search space;
  • the distribution type includes centralized or distributed; and, the control channel is a start OFDM symbol in each subframe.
  • the transmit power value is a transmit power value of the same PRB; when at least two PRBs in the PRB occupied by the control channel are not in phase Meanwhile, the transmit power value includes a transmit power value of each PRB occupied by the control channel.
  • the sending the configuration information to the neighboring base station includes:
  • the configuration information is sent to the neighboring base station by adding an IE to the setup request message sent to the neighboring base station to carry the configuration information.
  • the sending the configuration information to the neighboring base station includes:
  • the configuration information is sent to the neighboring base station by means of operation management and maintenance 0AM.
  • the sending the configuration information to the neighboring base station includes:
  • the first MME is an MME to which the base station belongs
  • the second MME is an MME to which the neighboring base station belongs
  • the embodiment of the present invention further provides an apparatus for reducing control channel interference, where the apparatus includes: a configuration information acquiring unit, configured to acquire configuration information of a control channel, where the configuration information includes at least one of the following information: a channel configuration period, a resource occupation indication information, and a configuration period start position, where the resource occupation indication information is used to indicate a physical resource block PRB occupied by the control channel in the configuration period, and a configuration period start position is used to indicate a corresponding starting point at the beginning of the configuration period;
  • a configuration information sending unit configured to send the configuration information to the neighboring base station, so that the neighboring base station adjusts according to the configuration information to reduce interference on the control channel of the base station.
  • the configuration period start position when the base station is synchronized with the neighboring base station, the configuration period start position includes a subframe number at the start of the configuration period; when the base station is out of synchronization with the neighboring base station, The configuration period start location includes a subframe number at the beginning of the configuration period plus an offset of the base station and the neighboring base station timing.
  • the configuration information further includes at least one of the following information: The transmit power information of the PRB occupied by the control channel, where the transmit power information of the PRB includes a transmit power value of the PRB and/or a comparison value between a transmit power value of the PRB and a set power threshold;
  • search space type of the control channel, where the search space type includes a common search space or a user equipment UE specific search space;
  • the distribution type includes centralized or distributed; and, the control channel is a start OFDM symbol in each subframe.
  • the transmit power value is a transmit power value of the same PRB; when at least two PRBs in the PRB occupied by the control channel are not in phase Meanwhile, the transmit power value includes a transmit power value of each PRB occupied by the control channel.
  • the configuration information sending unit is configured to send the configuration information to the neighboring base station by adding a information element IE to the load information Load Information message sent to the neighboring base station to carry the configuration information; Or,
  • the configuration information sending unit is configured to send the configuration information to the neighboring base station by adding an IE in the setup request Setup Request message sent to the neighboring base station to carry the configuration information.
  • the configuration information sending unit is configured to send the configuration information to the neighboring base station by operating the management and maintenance 0AM.
  • the configuration information sending unit is configured to send the configuration information to the first mobility management entity MME, so that the first MME sends the configuration information to the second MME, so that the second MME configures the second MME
  • the information is sent to the neighboring base station, where the first MME is the MME to which the base station belongs, and the second MME is the MME to which the neighboring base station belongs;
  • the configuration information sending unit is configured to send the configuration information to the third MME, so that the third MME sends the configuration information to the neighboring base station, where the third MME is the base station and the The MME to which the adjacent base stations belong together.
  • An embodiment of the present invention further provides an apparatus for reducing control channel interference, where the apparatus includes: a processor, configured to acquire configuration information of a control channel, where the configuration information includes at least one of the following: a configuration period of the control channel, a resource occupation indication information, and a configuration period start location, where the resource occupation indication information is used by And indicating a physical resource block PRB occupied by the control channel in the configuration period, where the configuration period start position is used to indicate a starting point corresponding to the start of the configuration period;
  • a transmitter configured to send the configuration information to the neighboring base station, so that the neighboring base station adjusts according to the configuration information to reduce interference to the base station control channel.
  • the configuration period start position when the base station is synchronized with the neighboring base station, the configuration period start position includes a subframe number at the start of the configuration period; when the base station is out of synchronization with the neighboring base station, The configuration period start location includes a subframe number at the beginning of the configuration period plus an offset of the base station and the neighboring base station timing.
  • the configuration information further includes at least one of the following information:
  • Transmit power information of the PRB occupied by the control channel where the transmit power information of the PRB includes a comparison value between a transmit power value of the PRB and/or a transmit power value of the PRB and a set power threshold value;
  • search space type of the control channel, where the search space type includes a common search space or a user equipment UE specific search space;
  • the distribution type includes centralized or distributed; and, the control channel is a start OFDM symbol in each subframe.
  • the transmit power value is a transmit power value of the same PRB; when at least two PRBs in the PRB occupied by the control channel are not in phase Meanwhile, the transmit power value includes a transmit power value of each PRB occupied by the control channel.
  • the transmitter is configured to pass load information sent to a neighboring base station.
  • a new information element IE is sent in the information message to send the configuration information to the neighboring base station in a manner of carrying the configuration information;
  • the transmitter is configured to send the configuration to the neighboring base station by adding an IE in a setup request Setup Request message sent to a neighboring base station to carry the configuration information. Information.
  • the transmitter is configured to send the configuration information to a neighboring base station by operating and maintaining 0AM.
  • the transmitter is configured to send the configuration information to the first mobility management entity ,E, so that the first MME sends the configuration information to the second ⁇ E, so that the second MME configures the second MME
  • the information is sent to the neighboring base station, where the first MME is an MME to which the base station belongs, and the second MME is an MME to which the neighboring base station belongs; or
  • the transmitter is configured to send the configuration information to the third ⁇ E, so that the third ⁇ E sends the configuration information to the neighboring base station, where the third MME is the base station and the The MME to which the adjacent base stations belong together.
  • the embodiment of the present invention further provides a system for reducing control channel interference, where the system includes: a serving base station, configured to acquire configuration information of a control channel, where the configuration information includes at least one of the following information: a configuration period, a resource occupation indication information, and a configuration period start location, where the resource occupation indication information is used to indicate a physical resource block PRB occupied by the control channel in the configuration period, where the configuration period start location is used to indicate a starting point corresponding to the beginning of the configuration period; sending the configuration information to a neighboring base station, so that the neighboring base station adjusts according to the configuration information to reduce interference to the control channel of the base station;
  • the neighboring base station is configured to receive the configuration information, and perform adjustment according to the configuration information to reduce interference on the control channel of the serving base station.
  • the embodiment of the present invention may obtain configuration information of a control channel of the current serving base station, and send the configuration information to the neighboring base station, where the configuration information may include a configuration period of the control channel, and the control channel is occupied by the configuration period.
  • the neighboring base station After receiving the configuration information, the neighboring base station can accurately know the PRB occupancy of the control channel at the serving base station, and then pass the information of the physical resource block PRB and the configuration cycle start position and the like. The corresponding adjustment can reduce the interference to the serving base station and avoid the conflict, thereby effectively solving the problem that the control channels interfere with each other between the base stations.
  • FIG. 1 is a flow chart of a method according to an embodiment of the present invention.
  • Embodiment 2 is a schematic diagram of signaling in Embodiment 2 of the present invention.
  • Embodiment 3 is a schematic diagram of signaling in Embodiment 3 of the present invention.
  • Embodiment 4 is a schematic diagram of a first type of signaling in Embodiment 4 of the present invention.
  • FIG. 5 is a schematic diagram of a second signaling according to Embodiment 4 of the present invention.
  • Figure 6 is a schematic view of a fifth embodiment of the present invention.
  • FIG. 7 is a schematic diagram of a device according to Embodiment 6 of the present invention.
  • Figure 8 is a schematic illustration of a system of a seventh embodiment of the present invention.
  • FIG. 1 is a flowchart of a method according to an embodiment of the present invention.
  • the present embodiment provides a method for reducing control channel interference, which is used for a base station (ie, a serving base station, which is different from a neighboring base station), and the method includes:
  • S101 Obtain configuration information of a control channel, where the configuration information includes at least one of the following: a configuration period of a control channel, resource occupation indication information, and a configuration period start location, where the resource occupation indication information is used to indicate a physical resource block PRB occupied by the control channel in the configuration period, where the configuration cycle start position is used to indicate that the configuration period starts The starting point.
  • the configuration information may be set in the base station, or may be sent by the entity or other entity that manages the base station to the base station, and so on.
  • the specific configuration of the configuration information is not limited in the embodiment of the present invention. .
  • the configuration period start position includes a subframe number at the start of the configuration period; when the base station is not synchronized with the neighbor base station, the configuration The cycle start position includes a subframe number at the start of the configuration period plus an offset of the base station and the neighbor base station timing.
  • the level of the period may be high or low, and the granularity may be large or small.
  • the frame may be granular, or the intra subframe may be used as the granularity, or even The granularity of the resources in the subframe may be used in this embodiment of the present invention.
  • the EPDCCH is not located in the control region of the first n OFDM symbols of one subframe as in the PDCCH, but is in the region where the downlink data is transmitted in the subframe, and is frequency-divided with the PD SCH (Physical Downlink Shared Channel). , can occupy a different PRB than the PDSCH.
  • a PDSCH-like precoding transmission may be performed on the EPDCCH, and demodulation based on a UE (User Equipment, User Equipment) specific reference signal.
  • the number and distribution of EPDCCHs in different subframes may be the same or different. If the neighboring base station does not know the number and distribution of EPDCCH in the serving base station subframe, collision or interference may occur.
  • the configuration information of the EPDCCH may include one or more of the following three types of information:
  • EPDCCH configuration period The EPDCCH distribution in different subframes may be different, or the PRB or PRB pairs occupied in each subframe may be different. However, after consecutive multiple subframes, the EPDCCH distribution may show a period. Characteristics of sexual repetition. In other words, the configuration of the EPDCCH can be periodically repeated, for example, the configuration period can be 10ms or 20ms.
  • the above PRB pair is a PRB Pair, and one PRB occupies one time slot from the time domain, one The subframe includes two time slots. Therefore, the allocation of the PDSCH resources is usually in units of PRB pairs.
  • the PRB pairs may be on the same frequency resource, or may be in different frequency resources by some frequency hopping. The above is not limited in the present invention.
  • the resource occupation indication information may indicate which PRBs are used for the EPDCCH, and specifically, which PRBs are used in each subframe EPDCCH.
  • the resource occupation indication information can be used to know the EPD C CH distribution of different subframes in one configuration period, and the configuration of the EPDCCH can be obtained for a long period of time by combining multiple configuration periods.
  • the configuration cycle start position is used to indicate the corresponding starting point at the beginning of the configuration period.
  • the base station synchronizes with the neighboring base station, and the configuration cycle start position is the configuration cycle.
  • the corresponding subframe in the beginning may be specifically represented by an offset Offset.
  • Offset is used to indicate from which subframe the configuration period starts in a series of consecutive subframes. The value of Offset is usually between "0" and "configuration period - between sub-frames.
  • each column represents one subframe
  • each subframe is 1 ms
  • each row represents a PRB.
  • a square filled with a horizontal line in the table indicates that the PRB or PRB pair of the subframe is occupied by the EPDCCH, that is, the PRB. Or a PRB pair is used for the EPDCCH.
  • EPDCCH The configuration period is 5ms, that is, the distribution of EPDCCH in subframes 0 to 4 is the same as the distribution of EPDCCH in subframes 5 to 9, in one configuration period (the first configuration period is 0 to 4 subframes).
  • the distribution of PRB or PRB pairs of EPDCCH corresponding to each subframe is:
  • Subframe 0 PRB or PRB pairs numbered 3, 8, 10, 14, and 19 are used for EPDCCH; subframe 1: PRB or PRB pairs numbered 5, 9, 16, 20, and 23 are Used for EPDCCH;
  • Subframe No. 2 PRB or PRB pairs numbered 2, 7, 13, 18, and 22 are used for EPDCCH;
  • Subframe No. 3 PRB or PRB pairs numbered 2, 6, 13, 17, and 21 are used for EPDCCH;
  • Subframe No. 4 PRB or PRB pairs numbered 5, 8, 16, 19, and 22 are used for EPDCCH. It should be noted that the Offset in the above table is 0, that is, in the series of consecutive subframes of 0-9, an EPDCCH configuration period is entered from the 0th subframe.
  • Offset is used as follows:
  • the neighboring base station may determine the configuration period by calculating the (SFN x 10+SubSFN) %T value of each subframe.
  • SFN is the System Frame Number, which is the system frame number
  • SubSFN is the subframe number
  • 10 indicates that one frame contains 10 subframes
  • T is the configuration period of the EPDCCH.
  • the judging rule may be: if (SFN x 10+SubSFN) %T of a certain subframe is equal to Offset, it indicates a configuration period from the start of the EPDCCH to the EPDCCH, and may start according to the corresponding EPDCCH resource occupation indication information. Obtain the EPDCCH resource occupancy in the period.
  • the neighboring base station When the neighboring base station and the serving base station are not synchronized in the time domain, the neighboring base station first acquires the offset of the neighboring base station and the serving base station in timing, and then the neighboring base station calculates the obtained subframe according to the foregoing. (SFN x 10+SubSFN) %T value, and the offset of the neighboring base station and the serving base station in timing, determining the subframe at the start of the configuration period of the serving base station. Specifically, if (SFN x 10+SubSFN ) %T of a certain subframe is equal to Offset after the offset between the neighboring base station and the serving base station is offset, it indicates that the EPDCCH is started from the subframe. Configuration period.
  • EPDCCH configuration set EPDCCH Set there may be more than one EPDCCH in a subframe.
  • the configuration of one EPDCCH may be referred to as an EPDCCH configuration set EPDCCH Set, and different EPDCCHs may also have their own The period and Offset do not affect each other. See As shown in Table 2, the vertical and horizontal filled cells in Table 2 represent an EPDCCH configuration such as EPDCCH Set1 and EPDCCH Set2, respectively.
  • the configuration information may further include one or more of the following four types of information:
  • the transmit power information of the PRB occupied by the control channel where the transmit power information of the PRB includes a transmit power value of the PRB and/or a comparison value between a transmit power value of the PRB and a set power threshold .
  • the comparison value may include: EPDCCH Setl power is less than a set threshold 1 , EPDCCH Set2 is less than a set threshold 2; or, EPDCCH Setl power is less than a set threshold 3, EPDCCH Set2 is greater than a set threshold 3, etc. Wait.
  • the transmit power value of the PRB in some embodiments of the present invention, the following may be the case: when the PRBs occupied by the control channel are all the same PRB, the transmit power value is the same PRB transmission. a power value; when at least two PRBs in the PRB occupied by the control channel are different, the transmit power value includes a transmit power value of each PRB occupied by the control channel.
  • a search space type of the control channel the search space type including a public search space Inter- or user equipment UE specific search space (UE specific search space).
  • UE specific search space UE specific search space
  • the control channel is at the beginning OFDM symbol of each subframe.
  • the initial OFDM symbol may also be periodic, and the periodic rule of the starting OFDM symbol and the offset of each subframe in the period, for example, the period of the initial OFDM symbol repetition may be 5 ms, which may be configured with the EPDCCH. The same information can also be different.
  • the serving base station sends the configuration information to the neighboring base station, and the neighboring base station performs resource configuration or resource allocation adjustment of the neighboring base station according to the configuration information to reduce interference to the serving base station control channel.
  • the roles of the serving base station and the neighboring base station may be interchanged, that is, the neighboring base station sends the control channel configuration information of the neighboring base station to the serving base station, and then the serving base station adjusts the control channel of the own base station to reduce the adjacent Interference of important channels such as the control channel of the base station.
  • the neighboring base station may perform resource configuration or resource allocation adjustment when performing downlink data scheduling to reduce interference to the serving base station and avoid conflicts, such as avoiding The resources indicated in the configuration information are used, or only small power is used, or only UEs at certain specific locations are scheduled, etc., to reduce or avoid interference.
  • the present invention is described in the embodiment only with an EPDCCH as an example of a control channel.
  • the method may be used for other control channels, so that neighboring base stations can obtain configuration information of the control channel, thereby achieving the purpose of reducing or even avoiding interference.
  • a PUCCH Physical Uplink Control CHannel
  • CRS Cell-specific Reference Signal
  • CSI-RS Channel State Information Reference Signal
  • CSI-RS Channel State Information Reference Signal
  • SRS Sounding Reference Signal
  • DRS Discovery Reference Signal
  • PRACH Physical Random Access Channel
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • the embodiment of the present invention may obtain configuration information of a control channel of the current serving base station, and send the configuration information to the neighboring base station, where the configuration information may include a configuration period of the control channel, and the control channel is occupied by the configuration period.
  • the neighboring base station After receiving the configuration information, the neighboring base station can accurately know the PRB occupancy of the control channel at the serving base station, and then pass the information of the physical resource block PRB and the configuration cycle start position and the like. The corresponding adjustment can reduce the interference to the serving base station and avoid the conflict, thereby effectively solving the problem that the control channels interfere with each other between the base stations.
  • Embodiment 2 Embodiment 2
  • this embodiment further refines how to "send the configuration information to neighboring base stations".
  • the sending the configuration information to the neighboring base station may include:
  • the configuration information is sent to the neighboring base station by adding a new information element IE to the load information Load Information message sent to the neighboring base station to carry the configuration information.
  • the base station 1 that is, the eNB 1 sends a Load Information message as a serving base station
  • the base station 2 that is, the eNB 2 receives the Load Information message as a neighboring base station of the serving base station.
  • the Load Information message carrying the configuration information is transmitted through the X2 interface between the base stations.
  • the sending mode may be periodic, such as sending every 20 ms; or may be event-triggered, for example, sending a Load Information message carrying a new configuration information after the configuration information is changed; or may be an event triggering and periodically transmitting, After the configuration information is changed, the serving base station starts to periodically send a Load Information message carrying the new configuration information to the neighboring base station, where the period of the transmission may be pre-configured in the base station or fixed in the protocol.
  • the embodiment of the present invention may obtain configuration information of a control channel of the current serving base station, and send the configuration information to the neighboring base station, where the configuration information may include a configuration period of the control channel,
  • the one or more pieces of information of the physical resource block PRB and the configuration cycle start position occupied by the control channel in the configuration period, and the neighboring base station can accurately learn the control channel after receiving the configuration information.
  • the corresponding adjustment can reduce the interference to the serving base station and avoid the conflict, thereby effectively solving the problem that the control channels interfere with each other.
  • this embodiment is further refined on the basis of the first embodiment, and specifically how to "send the configuration information to neighboring base stations".
  • the sending the configuration information to the neighboring base station may include:
  • FIG. 3 is a schematic diagram of signaling in Embodiment 3 of the present invention.
  • the setup request message carrying the configuration information is also sent by the X2 interface, so it can be called X2 Setup Request.
  • the neighboring base station eNB2 After the neighboring base station eNB2 receives the X2 Setup Request message carrying the configuration information, it stores and uses the configuration information to perform corresponding Adjusting to reduce or even avoid interference to eNB 1. For example, when performing downlink data scheduling, eNB2 tries to avoid using the resources indicated in the configuration information, or only uses less power, or only UEs in certain specific locations. For example, only the UE in the certain direction or the UE in the cell center is scheduled, or the control channel indicated in the configuration information is not configured with its own control channel, etc.
  • the eNB2 sends the X2 to the eNB l after receiving the X2 Setup Request message.
  • the Setup Response message is responded.
  • the embodiment of the present invention may obtain configuration information of a control channel of the current serving base station, and send the configuration information to the neighboring base station, where the configuration information may include a configuration period of the control channel, and the control channel is occupied by the configuration period.
  • the neighboring base station After receiving the configuration information, the neighboring base station can accurately know the PRB occupancy of the control channel at the serving base station, and then pass the information of the physical resource block PRB and the configuration cycle start position and the like. The corresponding adjustment can be reduced Less interference to the serving base station avoids collisions, thereby effectively solving the problem of mutual interference of control channels between base stations.
  • Embodiment 4 Embodiment 4
  • This embodiment is still further refined on the basis of the first embodiment, specifically how to "send the configuration information to neighboring base stations".
  • the second embodiment of the present invention can be used to send a message to a neighboring base station through the X2 interface.
  • the idea in this embodiment is that the configuration information is sent by the third party to the neighboring base station, so the embodiment can be used for the serving base station.
  • the sending the configuration information to the neighboring base station may include: sending the configuration information to the first mobility management entity MME, so that the first MME sends the configuration information to the second The MME, so that the second MME sends the configuration information to the neighboring base station, where the first MME is an MME to which the base station belongs, and the second MME is an MME to which the neighboring base station belongs.
  • FIG. 4 is a schematic diagram of a first signaling according to Embodiment 4 of the present invention.
  • the message can be transmitted between the base station and the MME through the S1 interface.
  • the eNB1 first sends the S1 interface message carrying the control channel configuration information to the MME1, where the S1 interface message may be a Load Information message or an S1 Setup Request message, or may be other existing messages, or may be newly designed. Message.
  • the MME1 sends the configuration information to the MME2 to which the eNB2 belongs through an interface message between the MMEs.
  • the MME2 finally sends the configuration information to the eNB2 through the S1 interface message.
  • the step of sending the configuration information to the MME2 by using the interface message between the MMEs in the above signaling diagram may be omitted.
  • the configuration information when it is to be sent by a third party, may be specifically sent to the neighboring base station by means of OAM operation management and maintenance.
  • the MME or OAM entity is responsible for managing which neighboring base stations are served by the serving base station.
  • the serving base station can measure the result by itself, or through the measurement result of the UE, or obtain the phase by OAM.
  • the information of the neighboring base station is reported to the MME.
  • the MME receives the control channel configuration information of the serving base station
  • the control channel configuration information of the serving base station may be sent to the serving base station according to the previously obtained information about the base station adjacent to the serving base station. Adjacent base stations.
  • the serving base station may not report the neighboring base station in advance, but directly transmit the information of the base station adjacent to the serving base station, such as the base station identifier, when transmitting the serving base station control channel configuration information to the MME.
  • the MME sends the configuration information of the serving base station to another MME, that is, the MME to which the corresponding neighboring base station belongs, or directly sends the corresponding neighbor according to the information.
  • Base station
  • the embodiment of the present invention may obtain configuration information of a control channel of the current serving base station, and send the configuration information to the neighboring base station, where the configuration information may include a configuration period of the control channel, and the control channel is occupied by the configuration period.
  • the neighboring base station After receiving the configuration information, the neighboring base station can accurately know the PRB occupancy of the control channel at the serving base station, and then pass the information of the physical resource block PRB and the configuration cycle start position and the like. The corresponding adjustment can reduce the interference to the serving base station and avoid the conflict, thereby effectively solving the problem that the control channels interfere with each other between the base stations.
  • Embodiment 5 Embodiment 5
  • FIG. 6 is a schematic diagram of a device according to Embodiment 5 of the present invention.
  • the embodiment provides a device for reducing control channel interference, and the device includes:
  • the configuration information acquiring unit 601 is configured to acquire configuration information of the control channel, where the configuration information includes at least one of the following: a configuration period of the control channel, resource occupation indication information, and a configuration period start location, where the resource is occupied.
  • the indication information is used to indicate a physical resource block PRB occupied by the control channel in the configuration period, and the configuration period start position is used to indicate a corresponding starting point when the configuration period starts;
  • the configuration information sending unit 602 is configured to send the configuration information to the neighboring base station, so that the neighboring base station adjusts according to the configuration information to reduce interference to the base station control channel.
  • the configuration period start position when the base station is synchronized with the neighboring base station, the configuration period start position includes a subframe number at the start of the configuration period; when the base station is out of synchronization with the neighboring base station, The configuration period start location includes a subframe number at the beginning of the configuration period plus an offset of the base station and the neighboring base station timing.
  • the configuration information further includes at least one of the following information:
  • Transmit power information of the PRB occupied by the control channel where the transmit power information of the PRB includes a comparison between a transmit power value of the PRB and/or a transmit power value of the PRB and a set power threshold;
  • search space type of the control channel, where the search space type includes a common search space or a user equipment UE specific search space;
  • the distribution type includes centralized or distributed; and, the control channel is a start OFDM symbol in each subframe.
  • the transmit power value is a transmit power value of the same PRB; when at least two PRBs in the PRB occupied by the control channel are not in phase Meanwhile, the transmit power value includes a transmit power value of each PRB occupied by the control channel.
  • the configuration information sending unit is configured to send the configuration information to the neighboring base station by adding a information element IE to the load information Load Information message sent to the neighboring base station to carry the configuration information; or ,
  • the configuration information sending unit is configured to send the configuration information to the neighboring base station by adding an IE in the setup request Setup Request message sent to the neighboring base station to carry the configuration information.
  • the configuration information sending unit is configured to send the configuration information to a neighboring base station by operating and maintaining the OAM.
  • the configuration information sending unit configured to send the configuration information to the first mobility management entity MME, so that the first MME sends the configuration information to the second MME, so that the second MME configures the second MME
  • the information is sent to the neighboring base station, where the first MME is an MME to which the base station belongs, and the second MME is an MME to which the neighboring base station belongs; or the configuration information sending unit is configured to send Sending, by the third MME, the configuration information, so that The third MME sends the configuration information to the neighboring base station, where the third MME is an MME to which the base station and the neighboring base station belong.
  • the device embodiment since it basically corresponds to the method embodiment, it can be referred to the partial description of the method embodiment.
  • the device embodiments described above are merely illustrative, and some or all of the units may be selected according to actual needs to achieve the objectives of the embodiment. Those skilled in the art can understand and implement without any creative work.
  • the embodiment of the present invention may obtain configuration information of a control channel of the current serving base station, and send the configuration information to the neighboring base station, where the configuration information may include a configuration period of the control channel, and the control channel is occupied by the configuration period.
  • the neighboring base station After receiving the configuration information, the neighboring base station can accurately know the PRB occupancy of the control channel at the serving base station, and then pass the information of the physical resource block PRB and the configuration cycle start position and the like. The corresponding adjustment can reduce the interference to the serving base station and avoid the conflict, thereby effectively solving the problem that the control channels interfere with each other between the base stations.
  • FIG. 7 is a schematic diagram of a device according to Embodiment 6 of the present invention. This embodiment provides a device for reducing control channel interference, where the device includes:
  • the processor 701 is configured to acquire configuration information of a control channel, where the configuration information includes at least one of the following: a configuration period of the control channel, a resource occupation indication information, and a configuration period start location, where the resource occupation indication information is a physical resource block PRB used to indicate the control channel in the configuration period, where the configuration cycle start position is used to indicate a starting point corresponding to the start of the configuration period;
  • the transmitter 702 is configured to send the configuration information to a neighboring base station, so that the neighboring base station adjusts according to the configuration information to reduce interference to the base station control channel.
  • the configuration period start position when the base station is synchronized with the neighboring base station, the configuration period start position includes a subframe number at the start of the configuration period; when the base station is out of synchronization with the neighboring base station, The configuration period start location includes a subframe number at the beginning of the configuration period plus an offset of the base station and the neighboring base station timing.
  • the configuration information further includes at least one of the following information:
  • Transmit power information of the PRB occupied by the control channel where the transmit power information of the PRB includes a comparison between a transmit power value of the PRB and/or a transmit power value of the PRB and a set power threshold;
  • search space type of the control channel, where the search space type includes a common search space or a user equipment UE specific search space;
  • the distribution type includes centralized or distributed; and, the control channel is a start OFDM symbol in each subframe.
  • the transmit power value is a transmit power value of the same PRB; when at least two PRBs in the PRB occupied by the control channel are not in phase Meanwhile, the transmit power value includes a transmit power value of each PRB occupied by the control channel.
  • the transmitter is configured to send the configuration information to the neighboring base station by adding the information element IE to the load information Load Information message sent to the neighboring base station, or send the configuration information to the neighboring base station; or
  • the transmitter is configured to send the configuration information to the neighboring base station by adding an IE to the setup request message sent to the neighboring base station to carry the configuration information.
  • the transmitter is configured to send the configuration information to a neighboring base station by operating and maintaining the OAM.
  • the transmitter is configured to send the configuration information to the first mobility management entity MME, so that the first MME sends the configuration information to the second MME, so that the second MME sends the configuration information Up to the neighboring base station, where the first MME is an MME to which the base station belongs, and the second MME is an MME to which the neighboring base station belongs; or
  • the transmitter is configured to send the configuration information to a third MME, so that the third MME sends the configuration information to the neighboring base station, where the third MME is the base station and the phase The MME to which the neighboring base stations belong.
  • the device embodiment since it basically corresponds to the method embodiment, reference may be made to the partial description of the method embodiment.
  • the device embodiments described above are merely illustrative, and the units described as separate components may or may not be physically separate, ie may be located in one place, or may be distributed over multiple network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment. Those of ordinary skill in the art can understand and implement without any creative effort.
  • the embodiment of the present invention may obtain configuration information of a control channel of the current serving base station, and send the configuration information to the neighboring base station, where the configuration information may include a configuration period of the control channel, and the control channel is occupied by the configuration period.
  • the neighboring base station After receiving the configuration information, the neighboring base station can accurately know the PRB occupancy of the control channel at the serving base station, and then pass the information of the physical resource block PRB and the configuration cycle start position and the like. The corresponding adjustment can reduce the interference to the serving base station and avoid the conflict, thereby effectively solving the problem that the control channels interfere with each other between the base stations.
  • FIG. 8 is a schematic diagram of a system according to Embodiment 7 of the present invention.
  • This embodiment provides a system 800 for reducing control channel interference, where the system includes:
  • the serving base station 801 is configured to acquire configuration information of the control channel, where the configuration information includes at least one of the following: a configuration period of the control channel, resource occupation indication information, and a configuration period start location, and the resource occupation indication information.
  • a physical resource block PRB used to indicate the control channel in the configuration period, where the configuration cycle start position is used to indicate a starting point corresponding to the start of the configuration period; and the configuration information is sent to a neighboring base station, So that the neighboring base station adjusts according to the configuration information to reduce interference to the base station control channel;
  • the neighboring base station 802 is configured to receive the configuration information, and perform adjustment according to the configuration information to reduce interference on a control channel of the serving base station.
  • the embodiment of the present invention may obtain configuration information of a control channel of the current serving base station, and send the configuration information to the neighboring base station, where the configuration information may include a configuration period of the control channel,
  • the one or more pieces of information of the physical resource block PRB and the configuration cycle start position occupied by the control channel in the configuration period, and the neighboring base station can accurately learn the control channel after receiving the configuration information.
  • the corresponding adjustment can reduce the interference to the serving base station and avoid the conflict, thereby effectively solving the problem that the control channels interfere with each other.
  • the invention may be described in the general context of computer-executable instructions executed by a computer, such as a program module.
  • program modules include routines, programs, objects, components, data structures, and the like that perform particular tasks or implement particular abstract data types.
  • the invention may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are connected through a communication network.
  • program modules can be located in both local and remote computer storage media including storage devices.

Abstract

本发明实施例公开了一种减少控制信道干扰的方法、装置、设备及系统,所述方法包括:获取控制信道的配置信息,配置信息包括下述信息中的至少一种:控制信道的配置周期、资源占用指示信息和配置周期起始位置,资源占用指示信息用于指示配置周期中控制信道所占用的物理资源块PRB,配置周期起始位置用于指示配置周期开始时对应的起点;向相邻基站发送配置信息,以使相邻基站根据配置信息进行调整以减少对基站控制信道的干扰。本发明实施例可以相邻基站在收到所述配置信息后便能精确的获知该控制信道在服务基站的PRB占用情况,进而通过相应的调整便可以减少对服务基站的干扰,避免了冲突,从而有效解决了基站之间控制信道相互干扰的问题。

Description

一种减少控制信道干扰的方法、 装置、 设备及系统
技术领域
本发明涉及基站通信技术领域, 尤其是涉及一种减少控制信道干扰的 方法、 装置、 设备及系统。 背景技术
随着通信技术的迅猛发展, 基站的数量越来越多, 这就不可避免的会 带来相邻基站之间各种控制信道互相干扰的问题。
以 LTE /LTE-A ( LTE , Long Term Evolution , 长期演进; LTE-A ,
LTE-advanced, LTE 高级演进) 系统为例。 该系统引入了增强的 PDCCH ( Physical Downlink Control Channel , 物理下行控制信道), 称为 EPDCCH ( Enhanced Physical Downlink Control Channel , 增强物理下行控制信道)。 而为了减少同频相邻小区之间 EPDCCH 的相互干 ·ί尤问题, 一方面, LTE/LTE-A引入了 ICIC ( Inter cell interference coordination, 小区间干扰协 调)技术, 在 ICIC技术中, 当前服务基站(以下均简称为服务基站)会向 服务基站的相邻基站(以下均简称为相邻基站 )发送 HII ( High Interference Indication, 高干扰指示)信息, 该 HII信息用于指示服务基站上行资源中 的 PRB ( Physical Resource Block, 物理资源块)对干扰的敏感程度, 1代 表干扰敏感度高, 0 代表干扰敏感度低, 该干扰为来自相邻基站下某小区 的 PRB 造成的干扰。 另一方面, 服务基站还可以向相邻基站发送 RNTP ( Relative Narrowband Transmission Power, 相对窄带发射功率)信息, 以 通知相邻基站其下行资源中的 PRB发射功率的情况, 让相邻基站知道来自 服务基站的可能的干扰水平, 即上述 PRB的发射功率是否超过给定的门限 值, 0代表与 0对应的 PRB的发射功率不会超过给定的门限, 1代表不保 证与 1对应的 PRB的发射功率低于给定的门限。
以上两种现有的减少控制信道相互干扰的方法都存在弊端, 主要为: 无论 HII还是 RNTP信息, 均不能对 PRB进行区分, 所以导致相邻基站不 清楚服务基站上各 PRB 的用途, 包括哪些 PRB是用于该服务基站的控制 信道, 也就不能很好的进行干扰协调以避免相互干扰。
发明内容 有鉴于此,本发明实施例的目的是提供一种减少控制信道干扰的方法、 装置、 设备及系统, 以有效解决基站间控制信道相互干扰的问题。
本发明实施例提供了一种减少控制信道干扰的方法, 用于基站, 所述 方法包括:
获取控制信道的配置信息,所述配置信息包括下述信息中的至少一种: 控制信道的配置周期、 资源占用指示信息和配置周期起始位置, 所述资源 占用指示信息用于指示所述配置周期中所述控制信道所占用的物理资源块 PRB , 所述配置周期起始位置用于指示所述配置周期开始时对应的起点; 向相邻基站发送所述配置信息, 以使所述相邻基站根据所述配置信息 进行调整以减少对所述基站控制信道的干扰。
优选的: 当所述基站与所述相邻基站同步时, 所述配置周期起始位置 包括所述配置周期起始时的子帧号; 当所述基站与所述相邻基站不同步时, 所述配置周期起始位置包括所述配置周期起始时的子帧号加上所述基站与 所述相邻基站定时上的偏移。
优选的, 所述配置信息还包括下述信息中的至少一种:
所述控制信道所占用的 PRB的发射功率信息, 所述 PRB的发射功率信息 包括所述 PRB的发射功率值和 /或所述 PRB的发射功率值与设置的功率门限 值的比较值;
所述控制信道的搜索空间类型, 所述搜索空间类型包括公共搜索空间 或用户设备 UE特定搜索空间;
所述控制信道的分布类型, 所述分布类型包括集中式或分布式; 以及, 所述控制信道在每个子帧的起始 OFDM符号。
优选的, 当所述控制信道所占用的 PRB 都为同一 PRB时, 所述发射功率 值为所述同一 PRB的发射功率值; 当所述控制信道所占用的 PRB中至少有两 个 PRB不相同时, 所述发射功率值包括所述控制信道所占用的每个 PRB的发 射功率值。 优选的, 所述向相邻基站发送所述配置信息, 包括:
通过在向相邻基站发送的负载信息 Load Information消息中新增信息 元素 IE来携带所述配置信息的方式, 向所述相邻基站发送所述配置信息; 或者,
通过在向相邻基站发送的设置请求 Setup Request消息中新增 IE来携 带所述配置信息的方式, 向所述相邻基站发送所述配置信息。
优选的, 所述向相邻基站发送所述配置信息, 包括:
通过操作管理维护 0AM的方式向相邻基站发送所述配置信息。
优选的, 所述向相邻基站发送所述配置信息, 包括:
向第一移动管理实体 MME发送所述配置信息, 使得所述第一 MME将所述 配置信息发送至第二 MME , 以使所述第二 MME将所述配置信息发送至所述相 邻基站, 其中所述第一 MME为所述基站所属的 MME, 所述第二 MME为所述相邻 基站所属的 MME; 或者,
向第三 MME发送所述配置信息, 使得所述第三 MME将所述配置信息发送 至所述相邻基站,其中所述第三 MME为所述基站和所述相邻基站共同所属的 匪5。
本发明实施例还提供了一种减少控制信道干扰的装置,所述装置包括: 配置信息获取单元, 用于获取控制信道的配置信息, 所述配置信息包 括下述信息中的至少一种: 控制信道的配置周期、 资源占用指示信息和配 置周期起始位置, 所述资源占用指示信息用于指示所述配置周期中所述控 制信道所占用的物理资源块 PRB , 配置周期起始位置用于指示所述配置周期 开始时对应的起点;
配置信息发送单元, 用于向相邻基站发送所述配置信息, 以使所述相 邻基站根据所述配置信息进行调整以减少对所述基站控制信道的干扰。
优选的: 当所述基站与所述相邻基站同步时, 所述配置周期起始位置 包括所述配置周期起始时的子帧号; 当所述基站与所述相邻基站不同步时, 所述配置周期起始位置包括所述配置周期起始时的子帧号加上所述基站与 所述相邻基站定时上的偏移。
优选的, 所述配置信息还包括下述信息中的至少一种: 所述控制信道所占用的 PRB的发射功率信息, 所述 PRB的发射功率信息 包括所述 PRB的发射功率值和 /或所述 PRB的发射功率值与设置的功率门限 值的比较值;
所述控制信道的搜索空间类型, 所述搜索空间类型包括公共搜索空间 或用户设备 UE特定搜索空间;
所述控制信道的分布类型, 所述分布类型包括集中式或分布式; 以及, 所述控制信道在每个子帧的起始 OFDM符号。
优选的, 当所述控制信道所占用的 PRB 都为同一 PRB时, 所述发射功率 值为所述同一 PRB的发射功率值; 当所述控制信道所占用的 PRB中至少有两 个 PRB不相同时, 所述发射功率值包括所述控制信道所占用的每个 PRB的发 射功率值。
优选的:
所述配置信息发送单元, 用于通过在向相邻基站发送的负载信息 Load Informat ion消息中新增信息元素 IE来携带所述配置信息的方式,向所述相 邻基站发送所述配置信息; 或者,
所述配置信息发送单元,用于通过在向相邻基站发送的设置请求 Setup Request消息中新增 IE来携带所述配置信息的方式, 向所述相邻基站发送所 述配置信息。
优选的, 所述配置信息发送单元, 用于通过操作管理维护 0AM的方式向 相邻基站发送所述配置信息。
优选的:
所述配置信息发送单元,用于向第一移动管理实体 MME发送所述配置信 息, 使得所述第一 MME将所述配置信息发送至第二 MME , 以使所述第二 MME 将所述配置信息发送至所述相邻基站,其中所述第一匪 E为所述基站所属的 MME , 所述第二 MME为所述相邻基站所属的 MME; 或者,
所述配置信息发送单元, 用于向第三 MME发送所述配置信息, 使得所述 第三 MME将所述配置信息发送至所述相邻基站, 其中所述第三 MME为所述基 站和所述相邻基站共同所属的 MME。
本发明实施例还提供了一种减少控制信道干扰的设备,所述设备包括: 处理器, 用于获取控制信道的配置信息, 所述配置信息包括下述信息 中的至少一种: 控制信道的配置周期、 资源占用指示信息和配置周期起始 位置, 所述资源占用指示信息用于指示所述配置周期中所述控制信道所占 用的物理资源块 PRB,所述配置周期起始位置用于指示所述配置周期开始时 对应的起点;
发送器, 用于向相邻基站发送所述配置信息, 以使所述相邻基站根据 所述配置信息进行调整以减少对所述基站控制信道的干扰。
优选的: 当所述基站与所述相邻基站同步时, 所述配置周期起始位置 包括所述配置周期起始时的子帧号; 当所述基站与所述相邻基站不同步时, 所述配置周期起始位置包括所述配置周期起始时的子帧号加上所述基站与 所述相邻基站定时上的偏移。
优选的, 所述配置信息还包括下述信息中的至少一种:
所述控制信道所占用的 PRB的发射功率信息, 所述 PRB的发射功率信息 包括所述 PRB的发射功率值和 /或所述 PRB的发射功率值与设置的功率门限 值的比较值;
所述控制信道的搜索空间类型, 所述搜索空间类型包括公共搜索空间 或用户设备 UE特定搜索空间;
所述控制信道的分布类型, 所述分布类型包括集中式或分布式; 以及, 所述控制信道在每个子帧的起始 OFDM符号。
优选的, 当所述控制信道所占用的 PRB 都为同一 PRB时, 所述发射功率 值为所述同一 PRB的发射功率值; 当所述控制信道所占用的 PRB中至少有两 个 PRB不相同时, 所述发射功率值包括所述控制信道所占用的每个 PRB的发 射功率值。
优选的:
所述发送器, 用于通过在向相邻基站发送的 负载信息 Load
Information消息中新增信息元素 IE来携带所述配置信息的方式,向所述相 邻基站发送所述配置信息; 或者,
所述发送器, 用于通过在向相邻基站发送的设置请求 Setup Request 消息中新增 IE来携带所述配置信息的方式, 向所述相邻基站发送所述配置 信息。
优选的, 所述发送器, 用于通过操作管理维护 0AM的方式向相邻基站发 送所述配置信息。
优选的:
所述发送器, 用于向第一移动管理实体匪 E发送所述配置信息, 使得所 述第一 MME将所述配置信息发送至第二匪 E , 以使所述第二 MME将所述配置信 息发送至所述相邻基站, 其中所述第一 MME为所述基站所属的 MME , 所述第 二 MME为所述相邻基站所属的 MME; 或者,
所述发送器, 用于向第三匪 E发送所述配置信息, 使得所述第三匪 E将 所述配置信息发送至所述相邻基站,其中所述第三 MME为所述基站和所述相 邻基站共同所属的 MME。
本发明实施例还提供了一种减少控制信道干扰的系统,所述系统包括: 服务基站, 用于获取控制信道的配置信息, 所述配置信息包括下述信 息中的至少一种: 控制信道的配置周期、 资源占用指示信息和配置周期起 始位置, 所述资源占用指示信息用于指示所述配置周期中所述控制信道所 占用的物理资源块 PRB ,所述配置周期起始位置用于指示所述配置周期开始 时对应的起点; 向相邻基站发送所述配置信息, 以使所述相邻基站根据所 述配置信息进行调整以减少对所述基站控制信道的干扰;
相邻基站, 用于接收所述配置信息, 根据所述配置信息进行调整以减 少对所述服务基站控制信道的干扰。
本发明实施例可以获取当前服务基站某控制信道的配置信息并将所述 配置信息发送给相邻基站,所述配置信息可以包含该控制信道的配置周期、 所述控制信道在配置周期中所占用的物理资源块 PRB和配置周期起始位置 等中的一种或多种信息, 相邻基站在收到所述配置信息后便可以精确的获 知该控制信道在服务基站的 PRB占用情况,进而通过相应的调整便可以减少 对服务基站的干扰, 避免了冲突, 从而有效解决了基站之间控制信道相互 干扰的问题。
附图说明 为了更清楚地说明本发明实施例或现有技术中的技术方案, 下面将对 实施例或现有技术描述中所需要使用的附图作简单地介绍, 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, 对于本领域普通技术人员 来讲, 在不付出创造性劳动的前提下, 还可以根据这些附图获得其他的附 图。
图 1是本发明实施例一方法的流程图;
图 2是本发明实施例二中信令示意图;
图 3是本发明实施例三中信令示意图;
图 4是本发明实施例四中第一种信令示意图;
图 5是本发明实施例四中第二种信令示意图;
图 6是本发明实施例五装置的示意图;
图 7是本发明实施例六设备的示意图;
图 8是本发明实施例七系统的示意图。
具体实施方式 下面将结合本发明实施例中的附图, 对本发明实施例中的技术方案进 行清楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明一部分实施例, 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 有作出创造性劳动前提下所获得的所有其他实施例, 都属于本发明保护的 范围。 实施例一
图 1 为本发明实施例一方法的流程图。 本实施例提供了一种减少控制 信道干扰的方法, 用于基站(即服务基站, 区别于相邻基站), 所述方法包 括:
S101、 获取控制信道的配置信息, 所述配置信息包括下述信息中的至 少一种: 控制信道的配置周期、 资源占用指示信息和配置周期起始位置, 所述资源占用指示信息用于指示所述配置周期中所述控制信道所占用的物 理资源块 PRB , 所述配置周期起始位置用于指示所述配置周期开始时对应 的起点。
所述配置信息可以设置在基站中, 也可以是由管理基站的实体或其他 实体发送给基站, 等等, 换句话说, 对于具体如何获取所述配置信息在本 发明实施例中并不做限制。
当所述基站与所述相邻基站同步时, 所述配置周期起始位置包括所述 配置周期起始时的子帧号; 当所述基站与所述相邻基站不同步时, 所述配 置周期起始位置包括所述配置周期起始时的子帧号加上所述基站与所述相 邻基站定时上的偏移。
下面着重对所述配置信息所包含的信息进行描述。 需要说明的是, 对 控制信道进行周期性配置时, 周期的层级可高可低, 粒度可大可小, 例如 可以是以帧为粒度, 也可以是以帧内的子帧为粒度, 甚至还可以以子帧内 的资源为粒度, 对此本发明实施例并不限制。
下面以 EPDCCH这种控制信道并以子帧内的 PRB为周期配置的粒度 为例, 进行进一步说明:
EPDCCH不像 PDCCH那样位于一个子帧的前 n个 OFDM符号的控制 区域,而是在该子帧传输下行数据的区域,且与 PD SCH ( Physical Downlink Shared Channel, 物理下行共享信道) 是频分的, 可与 PDSCH占用不同的 PRB。 可以对 EPDCCH进行类似 PDSCH的预编码传输, 且基于 UE ( User Equipment, 用户设备) 特定参考信号来解调。 在不同的子帧中 EPDCCH 的多少以及分布情况, 可能相同也可能不同, 若相邻基站不清楚服务基站 子帧中 EPDCCH的多少以及分布情况, 则很可能会产生冲突或干扰。
在本实施例中, EPDCCH 的配置信息, 如, EPDCCH 图样信息 EPDCCH pattern info , 可以包括下列三种信息中的一种或多种:
a ) EPDCCH的配置周期: 不同子帧中 EPDCCH的分布情况可以不同, 或者说每个子帧中占用的 PRB或 PRB对可以不同, 但是经过连续的多个 子帧后, EPDCCH 的分布情况可以呈现出周期性重复的特点。 换句话说 EPDCCH的配置是可以周期性重复的,例如该配置周期可以是 10ms或 20ms 等。
上述的 PRB对即 PRB Pair, 一个 PRB从时域上占用一个时隙, 一个 子帧包含两个时隙,所以通常 PDSCH资源的分配都是以 PRB对为单位的, 该 PRB对可以是在同一频率资源上的, 也可以是通过某种跳频的方式在不 同的频率资源上的, 本发明中不作限定。
b ) 资源占用指示信息, 即 EPDCCH 的配置周期中 EPDCCH 占用的 PRB: 该资源占用指示信息可以指示出有哪些 PRB是用于 EPDCCH, 具体 地, 可以指示出每个子帧内有哪些 PRB是用于 EPDCCH。 利用该资源占用 指示信息可以获知在一个配置周期内不同子帧的 EPD C CH分布情况, 再结 合多个配置周期就可以获得很长一段时间内 EPDCCH的配置情况。
c )配置周期起始位置: 配置周期起始位置用于指示所述配置周期开始 时对应的起点, 在本实施例中基站与所述相邻基站同步, 配置周期起始位 置即所述配置周期开始时对应的子帧, 具体可用偏移量 Offset表示, 换句 话说, Offset 用于指示在一系列连续的子帧中, 所述配置周期从哪个子帧 开始的。 Offset的取值通常在 "0" 至 "配置周期 - 个子帧之间。
为了便于理解, 下面进一步举例说明, 参见表 1所示:
表 1
频域 (P
Figure imgf000011_0001
在上表中, 每一列代表一个子帧, 每个子帧为 1ms, 每一行代表一个 PRB,表中使用横线填充的方格表示该子帧的该 PRB或 PRB 对被 EPDCCH 占用, 即该 PRB或 PRB 对被用于 EPDCCH。可以看出在上表中, EPDCCH 的配置周期为 5ms, 即 0~4号子帧中 EPDCCH的分布情况与 5~9号子帧中 EPDCCH的分布情况相同, 在一个配置周期内 (以 0~4号子帧即第一配置 周期为例), 每个子帧对应的 EPDCCH的 PRB或 PRB对分布情况分别为:
0号子帧:编号为 3、8、 10、 14,和 19的 PRB或 PRB对被用于 EPDCCH; 1号子帧:编号为 5、9、 16、20,和 23的 PRB或 PRB对被用于 EPDCCH;
2号子帧:编号为 2、7、 13、 18,和 22的 PRB或 PRB对被用于 EPDCCH;
3号子帧:编号为 2、6、 13、 17 ,和 21的 PRB或 PRB对被用于 EPDCCH;
4号子帧:编号为 5、8、 16、 19,和 22的 PRB或 PRB对被用于 EPDCCH。 需要说明的是, 上表中的 Offset为 0 , 即在 0~9这一系列连续子帧中, 从 0号子帧开始即进入一个 EPDCCH配置周期。
通常情况下 Offset的使用方法如下:
当相邻基站与服务基站在时域上同步时, 相邻基站在收到服务基站的 EPDCCH配置信息后, 可以通过计算每个子帧的 ( SFN x 10+SubSFN ) %T 值, 来判断配置周期的起点在哪, 其中 SFN为 System Frame Number即系 统帧号, SubSFN为子帧号, 10表示一个帧包含 10个子帧, T为 EPDCCH 的配置周期。 判断规则可以是: 若某子帧的 ( SFN x 10+SubSFN ) %T 与 Offset相等, 则表示从该子帧开始进入 EPDCCH的配置周期, 此时开始便 可以根据相应的 EPDCCH 资源占用指示信息来获知该周期内的 EPDCCH 资源占用情况。
当相邻基站与服务基站在时域上不同步时, 相邻基站先获取所述相邻 基站与所述服务基站在定时上的偏移, 然后相邻基站根据计算得到的每个 子帧的上述( SFN x 10+SubSFN ) %T值, 以及所述相邻基站与所述服务基 站在定时上的偏移, 确定服务基站的配置周期开始时的子帧。 具体的, 若 某子帧的 (SFN x 10+SubSFN ) %T加上所述相邻基站与所述服务基站在定 时上的偏移后与 Offset相等, 则表示从该子帧开始进入 EPDCCH的配置周 期。
此外, 在本发明某些实施例中, 子帧内的 EPDCCH可以不只一种, 此 时一种 EPDCCH 的配置情况可以称为一种 EPDCCH 配置集合 EPDCCH Set, 而不同的 EPDCCH也都可以有各自的周期及 Offset, 互不影响。 参见 表 2所示,表 2中竖线和横线填充的方格分别表示一种 EPDCCH配置 如 EPDCCH Setl、 EPDCCH Set2。
表 2
频域 (P
Figure imgf000013_0001
时域 (子帧)
EPDCCH Set1
EPDCCH Set2
另外, 在本发明某些实施例中, 所述配置信息还可以包括以下四种信 息中的一种或几种:
d ) 所述控制信道所占用的 PRB的发射功率信息, 所述 PRB的发射功 率信息包括所述 PRB的发射功率值和 /或所述 PRB的发射功率值与设置的 功率门限值的比较值。 例如, 所述比较值可以包括: EPDCCH Setl功率小 于设定的门限 1 , EPDCCH Set2小于设定的门限 2; 或, EPDCCH Setl功 率小于设定的门限 3 , EPDCCH Set2大于设定的门限 3 , 等等。
对于所述 PRB 的发射功率值, 在本发明某些实施例中, 可以是如下情 形: 当所述控制信道所占用的 PRB 都为同一 PRB时, 所述发射功率值为 所述同一 PRB 的发射功率值; 当所述控制信道所占用的 PRB 中至少有两 个 PRB 不相同时, 所述发射功率值包括所述控制信道所占用的每个 PRB 的发射功率值。
e )所述控制信道的搜索空间类型, 所述搜索空间类型包括公共搜索空 间或用户设备 UE特定搜索空间 ( UE specific search space )。 在配置信息中 指出哪些 PRB是用于公共搜索空间, 哪些 PRB是用于 UE特定搜索空间, 这样相邻基站收到 EPDCCH配置信息后, 就可以获得各 PRB更精确的情 况。 此外还可以携带与公共搜索空间和专用搜索空间相关的 PUCCH 资源 的起始偏移量等信息。
f ) 所述控制信道的分布类型, 所述分布类型包括集中式或分布式。 g ) 所述控制信道在每个子帧的起始 OFDM符号。 该起始 OFDM符号 也可以是周期性的, 其周期内每个子帧的起始 OFDM符号及偏移量的周期 性规则, 如, 起始 OFDM符号重复的周期可以为 5ms, 可以与 EPDCCH的 配置信息相同也可以不相同。
S102、 向相邻基站发送所述配置信息, 以使所述相邻基站根据所述配 置信息进行调整以减少对所述基站控制信道的干扰。
服务基站向相邻基站发送所述配置信息, 相邻基站根据所述配置信息 进行相邻基站的资源配置或资源分配的调整, 以减少对所述服务基站控制 信道的干扰。 在本发明中, 服务基站和相邻基站的角色可以互换, 即相邻 基站向服务基站发送相邻基站的控制信道配置信息, 然后服务基站对自身 控制信道进行相应调整, 以减少对相邻基站的控制信道等重要信道的干扰。
具体的, 在收到所述控制信道的配置信息后, 所述相邻基站在进行下 行数据调度时, 可以进行资源配置或资源分配的调整以减少对服务基站的 干扰, 避免冲突, 如尽量避免使用所述配置信息中指示的资源, 或者只使 用较小功率,再或者只调度某些特定位置的 UE,等等,来减少或避免干扰。
需要说明的是, 在本实施例中只是以 EPDCCH作为控制信道的一种示 例来对本发明进行描述。 在本发明其他实施例中, 所述方法可以用于其他 控制信道, 以使相邻基站可以获得到控制信道的配置信息, 达到减少甚至 避免干扰的目的。 例如服务基站的 PUCCH ( Physical Uplink Control CHannel, 物理上行链路控制信道)、 CRS ( Cell-specific Reference Signal, 小区专用参考信号 )、 CSI-RS ( Channel state information Reference Signal , 信道状态信息参考信号)、 SRS ( Sounding Reference Signal,探测参考信号)、 DRS( Discovery Reference Signal,发现参考信号)、 PRACH( Physical Random Access Channel,物理随机接入信道 )、 PSS ( Primary Synchronization Signal, 主同步信号), 以及 SSS ( Secondary Synchronization Signal, 辅同步信号) 中的至少一个, 等等, 以上各种控制信道和 /或信号, 其都可以应用本实施 例所述方法, 对此本发明实施例不做限制。
本发明实施例可以获取当前服务基站某控制信道的配置信息并将所述 配置信息发送给相邻基站,所述配置信息可以包含该控制信道的配置周期、 所述控制信道在配置周期中所占用的物理资源块 PRB和配置周期起始位置 等中的一种或多种信息, 相邻基站在收到所述配置信息后便可以精确的获 知该控制信道在服务基站的 PRB占用情况, 进而通过相应的调整便可以减 少对服务基站的干扰, 避免了冲突, 从而有效解决了基站之间控制信道相 互干扰的问题。 实施例二
本实施例在实施例一基础上, 对于具体如何 "向相邻基站发送所述配 置信息" 做了进一步的细化。 在本实施例中, 所述向相邻基站发送所述配 置信息, 具体可以包括:
通过在向相邻基站发送的负载信息 Load Information 消息中新增信息 元素 IE来携带所述配置信息的方式, 向所述相邻基站发送所述配置信息。
图 2为本发明实施例二中信令示意图, 基站 1即 eNBl作为服务基站 发出 Load Information消息,基站 2即 eNB2作为服务基站的相邻基站接收 Load Information消息。 携带有所述配置信息的 Load Information消息经过 基站间的 X2接口传递。 发送方式可以是周期性的, 如每 20ms发送一次; 也可以是事件触发的, 比如当配置信息发生改变之后便发送携带新的配置 信息的 Load Information消息; 还可以是事件触发同时周期性发送, 如当配 置信息发生改变之后, 服务基站开始周期性向相邻基站发送携带新的配置 信息的 Load Information消息, 其中发送的周期可以是基站中预先配置的, 也可以是在协议中固定的。
本发明实施例可以获取当前服务基站某控制信道的配置信息并将所述 配置信息发送给相邻基站,所述配置信息可以包含该控制信道的配置周期、 所述控制信道在配置周期中所占用的物理资源块 PRB和配置周期起始位置 等中的一种或多种信息, 相邻基站在收到所述配置信息后便可以精确的获 知该控制信道在服务基站的 PRB占用情况, 进而通过相应的调整便可以减 少对服务基站的干扰, 避免了冲突, 从而有效解决了基站之间控制信道相 互干扰的问题。 实施例三
与实施例二相似, 本实施例也在实施例一基础上, 对于具体如何 "向 相邻基站发送所述配置信息" 做了进一步的细化。 在本实施例中, 所述向 相邻基站发送所述配置信息, 具体可以包括:
通过在向相邻基站发送的设置请求 Setup Request消息中新增 IE来携带 所述配置信息的方式, 向所述相邻基站发送所述配置信息。
图 3 为本发明实施例三中信令示意图。 所述携带配置信息的 Setup Request消息也是经 X2接口发送,故可称为 X2 Setup Request„ 当相邻基站 eNB2接收到上述携带配置信息的 X2 Setup Request消息后, 会存储并利用 该配置信息进行相应的调整, 以减少甚至避免对 eNB 1的干扰, 例如 eNB2 在进行下行数据调度时, 尽量避免使用所述配置信息中指示的资源, 或者 只使用较小功率, 或者只调度某些特定位置的 UE , 如只调度某些方向的 UE或小区中心的 UE , 或者在所述配置信息中指示的资源上不配置自己的 控制信道等。 另外 eNB2在收到 X2 Setup Request消息后会向 eNB l发送 X2 Setup Response消息作为回应。
需要说明的是, 以上实施例二、 三都是利用现有消息来携带所述配置 信息的, 而在本发明某些实施例中, 也完全可以设计新的消息用于携带所 述配置信息, 对此本发明实施例不做限制。
本发明实施例可以获取当前服务基站某控制信道的配置信息并将所述 配置信息发送给相邻基站,所述配置信息可以包含该控制信道的配置周期、 所述控制信道在配置周期中所占用的物理资源块 PRB和配置周期起始位置 等中的一种或多种信息, 相邻基站在收到所述配置信息后便可以精确的获 知该控制信道在服务基站的 PRB占用情况, 进而通过相应的调整便可以减 少对服务基站的干扰, 避免了冲突, 从而有效解决了基站之间控制信道相 互干扰的问题。 实施例四
本实施例仍是在实施例一基础上, 对于具体如何 "向相邻基站发送所 述配置信息"做进一步的细化。 但与实施例二、 三直接通过 X2接口向相邻 基站发送消息不同的是, 本实施例的思路是由第三方将所述配置信息发送 至相邻基站,故本实施例可以用于服务基站与相邻基站之间没有 X2接口的 场景。 在本实施例中, 所述向相邻基站发送所述配置信息, 可以具体包括: 向第一移动管理实体 MME 发送所述配置信息, 使得所述第一 MME 将所述配置信息发送至第二 MME, 以使所述第二 MME将所述配置信息发 送至所述相邻基站, 其中所述第一 MME为所述基站所属的 MME, 所述第 二 MME为所述相邻基站所属的 MME; 或者 ,
向第三 MME发送所述配置信息 ,使得所述第三 MME将所述配置信息 发送至所述相邻基站, 其中所述第三 MME 为所述基站和所述相邻基站共 同所属的 MME。
图 4 为本发明实施例四中第一种信令示意图。 在本实施例中基站与 MME之间可以通过 S1接口传递消息。 eNBl先将携带控制信道配置信息的 S1 接口消息发至所属的 MME1 , 其中所述 S1 接口消息可以是 Load Information消息或 S 1 Setup Request消息, 也可以是其他现有消息,还可以 是新设计的消息。 然后 MME1通过 MME之间的接口消息将所述配置信息 发至 eNB2所属的 MME2。 最后 MME2再通过 S1接口消息将所述配置信 息最终发至 eNB2。 当然如果 eNBl和 eNB2同属于同一个 MME, 那么上 述信令图中 MME1通过 MME之间的接口消息将所述配置信息发至 MME2 的步骤可以省略。
此外, 在本发明某些实施例中, 欲由第三方发送时, 具体还可以通过 OAM操作管理维护的方式将所述配置信息发送给所述相邻基站。
MME或者 OAM实体负责管理服务基站都有哪些相邻基站。 服务基站 可以通过自己测量, 或通过 UE上^艮测量结果, 或通过 OAM方式获取其相 邻的基站的信息, 并上报给 MME。 当 MME接收到携带所述服务基站的控 制信道配置信息时, 便可以根据之前获得的与所述服务基站相邻的基站的 信息, 将所述服务基站的控制信道配置信息发送给所述服务基站的相邻基 站。此外,所述服务基站也可不事先上报其相邻的基站,而是直接在向 MME 发送所述服务基站控制信道配置信息时, 同时携带与所述服务基站相邻的 基站的信息, 如基站标识、 小区标识等, (参见图 5所示), 然后 MME再 根据此信息将所述服务基站的配置信息发送给另一个 MME 即相应的相邻 基站所属的 MME , 或直接发给相应的相邻基站。
本发明实施例可以获取当前服务基站某控制信道的配置信息并将所述 配置信息发送给相邻基站,所述配置信息可以包含该控制信道的配置周期、 所述控制信道在配置周期中所占用的物理资源块 PRB和配置周期起始位置 等中的一种或多种信息, 相邻基站在收到所述配置信息后便可以精确的获 知该控制信道在服务基站的 PRB占用情况, 进而通过相应的调整便可以减 少对服务基站的干扰, 避免了冲突, 从而有效解决了基站之间控制信道相 互干扰的问题。 实施例五
图 6是本发明实施例五装置的示意图, 本实施例提供了一种减少控制 信道干扰的装置, 所述装置包括:
配置信息获取单元 601 , 用于获取控制信道的配置信息, 所述配置信 息包括下述信息中的至少一种: 控制信道的配置周期、 资源占用指示信息 和配置周期起始位置, 所述资源占用指示信息用于指示所述配置周期中所 述控制信道所占用的物理资源块 PRB , 配置周期起始位置用于指示所述配 置周期开始时对应的起点;
配置信息发送单元 602 , 用于向相邻基站发送所述配置信息, 以使所 述相邻基站根据所述配置信息进行调整以减少对所述基站控制信道的干 扰。
优选的: 当所述基站与所述相邻基站同步时, 所述配置周期起始位置 包括所述配置周期起始时的子帧号; 当所述基站与所述相邻基站不同步时, 所述配置周期起始位置包括所述配置周期起始时的子帧号加上所述基站与 所述相邻基站定时上的偏移。
优选的, 所述配置信息还包括下述信息中的至少一种:
所述控制信道所占用的 PRB 的发射功率信息, 所述 PRB 的发射功率 信息包括所述 PRB的发射功率值和 /或所述 PRB的发射功率值与设置的功 率门限值的比较值;
所述控制信道的搜索空间类型, 所述搜索空间类型包括公共搜索空间 或用户设备 UE特定搜索空间;
所述控制信道的分布类型, 所述分布类型包括集中式或分布式; 以及, 所述控制信道在每个子帧的起始 OFDM符号。
优选的, 当所述控制信道所占用的 PRB 都为同一 PRB时, 所述发射 功率值为所述同一 PRB 的发射功率值; 当所述控制信道所占用的 PRB 中 至少有两个 PRB不相同时, 所述发射功率值包括所述控制信道所占用的每 个 PRB的发射功率值。
优选的:
所述配置信息发送单元, 用于通过在向相邻基站发送的负载信息 Load Information消息中新增信息元素 IE来携带所述配置信息的方式, 向所述相 邻基站发送所述配置信息; 或者,
所述配置信息发送单元,用于通过在向相邻基站发送的设置请求 Setup Request消息中新增 IE来携带所述配置信息的方式, 向所述相邻基站发送 所述配置信息。
优选的, 所述配置信息发送单元, 用于通过操作管理维护 OAM 的方 式向相邻基站发送所述配置信息。
优选的:
所述配置信息发送单元, 用于向第一移动管理实体 MME发送所述配 置信息, 使得所述第一 MME将所述配置信息发送至第二 MME, 以使所述 第二 MME将所述配置信息发送至所述相邻基站 ,其中所述第一 MME为所 述基站所属的 MME, 所述第二 MME为所述相邻基站所属的 MME; 或者, 所述配置信息发送单元, 用于向第三 MME发送所述配置信息, 使得 所述第三 MME将所述配置信息发送至所述相邻基站, 其中所述第三 MME 为所述基站和所述相邻基站共同所属的 MME。
对于装置实施例而言, 由于其基本对应于方法实施例, 所以相关之处 参见方法实施例的部分说明即可。 以上所描述的装置实施例仅仅是示意性 的, 可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方 案的目的。 本领域普通技术人员在不付出创造性劳动的情况下, 即可以理 解并实施。
本发明实施例可以获取当前服务基站某控制信道的配置信息并将所述 配置信息发送给相邻基站,所述配置信息可以包含该控制信道的配置周期、 所述控制信道在配置周期中所占用的物理资源块 PRB和配置周期起始位置 等中的一种或多种信息, 相邻基站在收到所述配置信息后便可以精确的获 知该控制信道在服务基站的 PRB占用情况, 进而通过相应的调整便可以减 少对服务基站的干扰, 避免了冲突, 从而有效解决了基站之间控制信道相 互干扰的问题。 实施例六
图 7是本发明实施例六设备的示意图, 本实施例提供了一种减少控制 信道干扰的设备, 所述设备包括:
处理器 701 , 用于获取控制信道的配置信息, 所述配置信息包括下述 信息中的至少一种: 控制信道的配置周期、 资源占用指示信息和配置周期 起始位置, 所述资源占用指示信息用于指示所述配置周期中所述控制信道 所占用的物理资源块 PRB , 所述配置周期起始位置用于指示所述配置周期 开始时对应的起点;
发送器 702 , 用于向相邻基站发送所述配置信息, 以使所述相邻基站 根据所述配置信息进行调整以减少对所述基站控制信道的干扰。
优选的: 当所述基站与所述相邻基站同步时, 所述配置周期起始位置 包括所述配置周期起始时的子帧号; 当所述基站与所述相邻基站不同步时, 所述配置周期起始位置包括所述配置周期起始时的子帧号加上所述基站与 所述相邻基站定时上的偏移。 优选的, 所述配置信息还包括下述信息中的至少一种:
所述控制信道所占用的 PRB 的发射功率信息, 所述 PRB 的发射功率 信息包括所述 PRB的发射功率值和 /或所述 PRB的发射功率值与设置的功 率门限值的比较值;
所述控制信道的搜索空间类型, 所述搜索空间类型包括公共搜索空间 或用户设备 UE特定搜索空间;
所述控制信道的分布类型, 所述分布类型包括集中式或分布式; 以及, 所述控制信道在每个子帧的起始 OFDM符号。
优选的, 当所述控制信道所占用的 PRB 都为同一 PRB时, 所述发射 功率值为所述同一 PRB 的发射功率值; 当所述控制信道所占用的 PRB 中 至少有两个 PRB不相同时, 所述发射功率值包括所述控制信道所占用的每 个 PRB的发射功率值。
优选的:
所述发送器, 用于通过在向相邻基站发送的负载信息 Load Information 消息中新增信息元素 IE来携带所述配置信息的方式, 向所述相邻基站发送 所述配置信息; 或者,
所述发送器, 用于通过在向相邻基站发送的设置请求 Setup Request消 息中新增 IE来携带所述配置信息的方式, 向所述相邻基站发送所述配置信 息。
优选的, 所述发送器, 用于通过操作管理维护 OAM 的方式向相邻基 站发送所述配置信息。
优选的:
所述发送器, 用于向第一移动管理实体 MME发送所述配置信息, 使 得所述第一 MME将所述配置信息发送至第二 MME, 以使所述第二 MME 将所述配置信息发送至所述相邻基站, 其中所述第一 MME 为所述基站所 属的 MME, 所述第二 MME为所述相邻基站所属的 MME; 或者,
所述发送器,用于向第三 MME发送所述配置信息 ,使得所述第三 MME 将所述配置信息发送至所述相邻基站, 其中所述第三 MME 为所述基站和 所述相邻基站共同所属的 MME。 对于设备实施例而言, 由于其基本对应于方法实施例, 所以相关之处 参见方法实施例的部分说明即可。 以上所描述的设备实施例仅仅是示意性 的, 其中所述作为分离部件说明的单元可以是或者也可以不是物理上分开 的, 即可以位于一个地方, 或者也可以分布到多个网络单元上。 可以根据 实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。 本 领域普通技术人员在不付出创造性劳动的情况下, 即可以理解并实施。
本发明实施例可以获取当前服务基站某控制信道的配置信息并将所述 配置信息发送给相邻基站,所述配置信息可以包含该控制信道的配置周期、 所述控制信道在配置周期中所占用的物理资源块 PRB和配置周期起始位置 等中的一种或多种信息, 相邻基站在收到所述配置信息后便可以精确的获 知该控制信道在服务基站的 PRB占用情况, 进而通过相应的调整便可以减 少对服务基站的干扰, 避免了冲突, 从而有效解决了基站之间控制信道相 互干扰的问题。 实施例七
图 8是本发明实施例七系统的示意图, 本实施例提供了一种减少控制 信道干扰的系统 800 , 所述系统包括:
服务基站 801 , 用于获取控制信道的配置信息, 所述配置信息包括下 述信息中的至少一种: 控制信道的配置周期、 资源占用指示信息和配置周 期起始位置, 所述资源占用指示信息用于指示所述配置周期中所述控制信 道所占用的物理资源块 PRB , 所述配置周期起始位置用于指示所述配置周 期开始时对应的起点; 向相邻基站发送所述配置信息, 以使所述相邻基站 根据所述配置信息进行调整以减少对所述基站控制信道的干扰;
相邻基站 802 , 用于接收所述配置信息, 根据所述配置信息进行调整 以减少对所述服务基站控制信道的干扰。
对于系统实施例而言, 由于其基本对应于方法实施例, 所以相关之处 参见方法实施例的部分说明即可。
本发明实施例可以获取当前服务基站某控制信道的配置信息并将所述 配置信息发送给相邻基站,所述配置信息可以包含该控制信道的配置周期、 所述控制信道在配置周期中所占用的物理资源块 PRB和配置周期起始位置 等中的一种或多种信息, 相邻基站在收到所述配置信息后便可以精确的获 知该控制信道在服务基站的 PRB占用情况, 进而通过相应的调整便可以减 少对服务基站的干扰, 避免了冲突, 从而有效解决了基站之间控制信道相 互干扰的问题。 本发明可以在由计算机执行的计算机可执行指令的一般上下文中描 述, 例如程序模块。 一般地, 程序模块包括执行特定任务或实现特定抽象 数据类型的例程、 程序、 对象、 组件、 数据结构等等。 也可以在分布式计 算环境中实践本发明, 在这些分布式计算环境中, 由通过通信网络而被连 接的远程处理设备来执行任务。 在分布式计算环境中, 程序模块可以位于 包括存储设备在内的本地和远程计算机存储介质中。
本领域普通技术人员可以理解实现上述方法实施方式中的全部或部分 步骤是可以通过程序来指令相关的硬件来完成, 所述的程序可以存储于计 算机可读取存储介质中, 这里所称得的存储介质, 如: ROM、 RAM, 磁碟、 光盘等。
还需要说明的是, 在本文中, 诸如第一和第二等之类的关系术语仅仅 用来将一个实体或者操作与另一个实体或操作区分开来, 而不一定要求或 者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。 而且, 术 语 "包括"、 "包含" 或者其任何其他变体意在涵盖非排他性的包含, 从而 使得包括一系列要素的过程、 方法、 物品或者设备不仅包括那些要素, 而 且还包括没有明确列出的其他要素, 或者是还包括为这种过程、 方法、 物 品或者设备所固有的要素。 在没有更多限制的情况下, 由语句 "包括一 个 ... ... " 限定的要素, 并不排除在包括所述要素的过程、 方法、 物品或者 设备中还存在另外的相同要素。
以上所述仅为本发明的较佳实施例而已, 并非用于限定本发明的保护 上实施例的说明只是用于帮助理解本发明的方法及其核心思想; 同时, 对 于本领域的一般技术人员, 依据本发明的思想, 在具体实施方式及应用范 围上均会有改变之处。 综上所述, 本说明书内容不应理解为对本发明的限 制。 凡在本发明的精神和原则之内所作的任何修改、 等同替换、 改进等, 均包含在本发明的保护范围内。

Claims

权 利 要 求
1、 一种减少控制信道干扰的方法, 用于基站, 其特征在于, 所述方法 包括:
获取控制信道的配置信息,所述配置信息包括下述信息中的至少一种: 控制信道的配置周期、 资源占用指示信息和配置周期起始位置, 所述资源 占用指示信息用于指示所述配置周期中所述控制信道所占用的物理资源块 PRB , 所述配置周期起始位置用于指示所述配置周期开始时对应的起点; 向相邻基站发送所述配置信息, 以使所述相邻基站根据所述配置信息 进行调整以减少对所述基站控制信道的干扰。
2、 根据权利要求 1所述的方法, 其特征在于:
当所述基站与所述相邻基站同步时, 所述配置周期起始位置包括所述 配置周期起始时的子帧号; 当所述基站与所述相邻基站不同步时, 所述配 置周期起始位置包括所述配置周期起始时的子帧号加上所述基站与所述相 邻基站定时上的偏移。
3、 根据权利要求 1所述的方法, 其特征在于, 所述配置信息还包括下 述信息中的至少一种:
所述控制信道所占用的 PRB 的发射功率信息, 所述 PRB 的发射功率 信息包括所述 PRB的发射功率值和 /或所述 PRB的发射功率值与设置的功 率门限值的比较值;
所述控制信道的搜索空间类型, 所述搜索空间类型包括公共搜索空间 或用户设备 UE特定搜索空间;
所述控制信道的分布类型, 所述分布类型包括集中式或分布式; 以及, 所述控制信道在每个子帧的起始 OFDM符号。
4、 根据权利要求 3所述的方法, 其特征在于, 当所述控制信道所占用 的 PRB 都为同一 PRB时,所述发射功率值为所述同一 PRB的发射功率值; 当所述控制信道所占用的 PRB 中至少有两个 PRB不相同时, 所述发射功 率值包括所述控制信道所占用的每个 PRB的发射功率值。
5、 根据权利要求 1-4任一权利要求所述的方法, 其特征在于, 所述向 相邻基站发送所述配置信息, 包括: 通过在向相邻基站发送的负载信息 Load Information 消息中新增信息 元素 IE来携带所述配置信息的方式, 向所述相邻基站发送所述配置信息; 或者,
通过在向相邻基站发送的设置请求 Setup Request消息中新增 IE来携带 所述配置信息的方式, 向所述相邻基站发送所述配置信息。
6、 根据权利要求 1-4任一权利要求所述的方法, 其特征在于, 所述向 相邻基站发送所述配置信息, 包括:
通过操作管理维护 OAM的方式向相邻基站发送所述配置信息。
7、 根据权利要求 1-4任一权利要求所述的方法, 其特征在于, 所述向 相邻基站发送所述配置信息, 包括:
向第一移动管理实体 MME 发送所述配置信息, 使得所述第一 MME 将所述配置信息发送至第二 MME, 以使所述第二 MME将所述配置信息发 送至所述相邻基站, 其中所述第一 MME为所述基站所属的 MME, 所述第 二 MME为所述相邻基站所属的 MME; 或者 ,
向第三 MME发送所述配置信息,使得所述第三 MME将所述配置信息 发送至所述相邻基站, 其中所述第三 MME 为所述基站和所述相邻基站共 同所属的 MME。
8、 一种减少控制信道干扰的装置, 其特征在于, 所述装置包括: 配置信息获取单元, 用于获取控制信道的配置信息, 所述配置信息包 括下述信息中的至少一种: 控制信道的配置周期、 资源占用指示信息和配 置周期起始位置, 所述资源占用指示信息用于指示所述配置周期中所述控 制信道所占用的物理资源块 PRB , 配置周期起始位置用于指示所述配置周 期开始时对应的起点;
配置信息发送单元, 用于向相邻基站发送所述配置信息, 以使所述相 邻基站根据所述配置信息进行调整以减少对所述基站控制信道的干扰。
9、 根据权利要求 8所述的装置, 其特征在于:
当所述基站与所述相邻基站同步时, 所述配置周期起始位置包括所述 配置周期起始时的子帧号; 当所述基站与所述相邻基站不同步时, 所述配 置周期起始位置包括所述配置周期起始时的子帧号加上所述基站与所述相 邻基站定时上的偏移。
10、 根据权利要求 8所述的装置, 其特征在于, 所述配置信息还包括 下述信息中的至少一种:
所述控制信道所占用的 PRB 的发射功率信息, 所述 PRB 的发射功率 信息包括所述 PRB的发射功率值和 /或所述 PRB的发射功率值与设置的功 率门限值的比较值;
所述控制信道的搜索空间类型, 所述搜索空间类型包括公共搜索空间 或用户设备 UE特定搜索空间;
所述控制信道的分布类型, 所述分布类型包括集中式或分布式; 以及, 所述控制信道在每个子帧的起始 OFDM符号。
11、 根据权利要求 10所述的装置, 其特征在于, 当所述控制信道所占 用的 PRB 都为同一 PRB时, 所述发射功率值为所述同一 PRB的发射功率 值; 当所述控制信道所占用的 PRB 中至少有两个 PRB不相同时, 所述发 射功率值包括所述控制信道所占用的每个 PRB的发射功率值。
12、 根据权利要求 8-11任一权利要求所述的装置, 其特征在于, 所述配置信息发送单元, 用于通过在向相邻基站发送的负载信息 Load
Information消息中新增信息元素 IE来携带所述配置信息的方式, 向所述相 邻基站发送所述配置信息; 或者,
所述配置信息发送单元,用于通过在向相邻基站发送的设置请求 Setup
Request消息中新增 IE来携带所述配置信息的方式, 向所述相邻基站发送 所述配置信息。
13、 根据权利要求 8-11任一权利要求所述的装置, 其特征在于, 所述配置信息发送单元, 用于通过操作管理维护 OAM 的方式向相邻 基站发送所述配置信息。
14、 根据权利要求 8-11任一权利要求所述的装置, 其特征在于, 所述配置信息发送单元, 用于向第一移动管理实体 MME发送所述配 置信息, 使得所述第一 MME将所述配置信息发送至第二 MME, 以使所述 第二 MME将所述配置信息发送至所述相邻基站 ,其中所述第一 MME为所 述基站所属的 MME, 所述第二 MME为所述相邻基站所属的 MME; 或者, 所述配置信息发送单元, 用于向第三 MME发送所述配置信息, 使得 所述第三 MME将所述配置信息发送至所述相邻基站, 其中所述第三 MME 为所述基站和所述相邻基站共同所属的 MME。
15、 一种减少控制信道干扰的设备, 其特征在于, 所述设备包括: 处理器, 用于获取控制信道的配置信息, 所述配置信息包括下述信息 中的至少一种: 控制信道的配置周期、 资源占用指示信息和配置周期起始 位置, 所述资源占用指示信息用于指示所述配置周期中所述控制信道所占 用的物理资源块 PRB , 所述配置周期起始位置用于指示所述配置周期开始 时对应的起点;
发送器, 用于向相邻基站发送所述配置信息, 以使所述相邻基站根据 所述配置信息进行调整以减少对所述基站控制信道的干扰。
16、 根据权利要求 15所述的设备, 其特征在于:
当所述基站与所述相邻基站同步时, 所述配置周期起始位置包括所述 配置周期起始时的子帧号; 当所述基站与所述相邻基站不同步时, 所述配 置周期起始位置包括所述配置周期起始时的子帧号加上所述基站与所述相 邻基站定时上的偏移。
17、 根据权利要求 15所述的设备, 其特征在于, 所述配置信息还包括 下述信息中的至少一种:
所述控制信道所占用的 PRB 的发射功率信息, 所述 PRB 的发射功率 信息包括所述 PRB的发射功率值和 /或所述 PRB的发射功率值与设置的功 率门限值的比较值;
所述控制信道的搜索空间类型, 所述搜索空间类型包括公共搜索空间 或用户设备 UE特定搜索空间;
所述控制信道的分布类型, 所述分布类型包括集中式或分布式; 以及, 所述控制信道在每个子帧的起始 OFDM符号。
18、 根据权利要求 17所述的设备, 其特征在于, 当所述控制信道所占 用的 PRB 都为同一 PRB时, 所述发射功率值为所述同一 PRB的发射功率 值; 当所述控制信道所占用的 PRB 中至少有两个 PRB不相同时, 所述发 射功率值包括所述控制信道所占用的每个 PRB的发射功率值。
19、 根据权利要求 15-18任一权利要求所述的设备, 其特征在于, 所述发送器, 用于通过在向相邻基站发送的负载信息 Load Information 消息中新增信息元素 IE来携带所述配置信息的方式, 向所述相邻基站发送 所述配置信息; 或者,
所述发送器, 用于通过在向相邻基站发送的设置请求 Setup Request消 息中新增 IE来携带所述配置信息的方式, 向所述相邻基站发送所述配置信 息。
20、 根据权利要求 15-18任一权利要求所述的设备, 其特征在于, 所述发送器, 用于通过操作管理维护 OAM 的方式向相邻基站发送所 述配置信息。
21、 根据权利要求 15-18任一权利要求所述的设备, 其特征在于, 所述发送器, 用于向第一移动管理实体 MME发送所述配置信息, 使 得所述第一 MME将所述配置信息发送至第二 MME, 以使所述第二 MME 将所述配置信息发送至所述相邻基站, 其中所述第一 MME 为所述基站所 属的 MME, 所述第二 MME为所述相邻基站所属的 MME; 或者,
所述发送器,用于向第三 MME发送所述配置信息 ,使得所述第三 MME 将所述配置信息发送至所述相邻基站, 其中所述第三 MME 为所述基站和 所述相邻基站共同所属的 MME。
22、 一种减少控制信道干扰的系统, 其特征在于, 所述系统包括: 服务基站, 用于获取控制信道的配置信息, 所述配置信息包括下述信 息中的至少一种: 控制信道的配置周期、 资源占用指示信息和配置周期起 始位置, 所述资源占用指示信息用于指示所述配置周期中所述控制信道所 占用的物理资源块 PRB , 所述配置周期起始位置用于指示所述配置周期开 始时对应的起点; 向相邻基站发送所述配置信息, 以使所述相邻基站根据 所述配置信息进行调整以减少对所述基站控制信道的干扰;
相邻基站, 用于接收所述配置信息, 根据所述配置信息进行调整以减 WO 2014/131190
少对所述服务基站控制信道的干扰。
PCT/CN2013/072035 2013-03-01 2013-03-01 一种减少控制信道干扰的方法、装置、设备及系统 WO2014131190A1 (zh)

Priority Applications (5)

Application Number Priority Date Filing Date Title
RU2015141617A RU2612399C1 (ru) 2013-03-01 2013-03-01 Способ, установка, устройство и система для уменьшения влияния помех на канал управления
PCT/CN2013/072035 WO2014131190A1 (zh) 2013-03-01 2013-03-01 一种减少控制信道干扰的方法、装置、设备及系统
EP13876499.8A EP2958356A4 (en) 2013-03-01 2013-03-01 METHOD, APPARATUS, DEVICE, AND SYSTEM FOR REDUCING INTERFERENCE IN A CONTROL CHANNEL
CN201380001958.6A CN104322091B (zh) 2013-03-01 2013-03-01 一种减少控制信道干扰的方法、装置、设备及系统
US14/841,846 US20150373731A1 (en) 2013-03-01 2015-09-01 Method, apparatus, device, and system for reducing interference to control channel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2013/072035 WO2014131190A1 (zh) 2013-03-01 2013-03-01 一种减少控制信道干扰的方法、装置、设备及系统

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US14/841,846 Continuation US20150373731A1 (en) 2013-03-01 2015-09-01 Method, apparatus, device, and system for reducing interference to control channel

Publications (1)

Publication Number Publication Date
WO2014131190A1 true WO2014131190A1 (zh) 2014-09-04

Family

ID=51427487

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/072035 WO2014131190A1 (zh) 2013-03-01 2013-03-01 一种减少控制信道干扰的方法、装置、设备及系统

Country Status (5)

Country Link
US (1) US20150373731A1 (zh)
EP (1) EP2958356A4 (zh)
CN (1) CN104322091B (zh)
RU (1) RU2612399C1 (zh)
WO (1) WO2014131190A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9553680B1 (en) 2012-04-02 2017-01-24 Sprint Communications Company L.P. Uplink interference mitigation
US10039116B1 (en) * 2012-04-02 2018-07-31 Sprint Communications Company L.P. Long term evolution scheduler to mitigate interference
EP3332580A4 (en) * 2015-08-05 2019-03-13 Telefonaktiebolaget LM Ericsson (PUBL) METHOD AND NETWORK NODES FOR DYNAMIC RESOURCE ALLOCATION FOR CONTROL CHANNELS

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014193104A1 (ko) * 2013-05-31 2014-12-04 엘지전자 주식회사 저전력 송신 파워를 갖는 소규모 셀로부터 epdcch를 수신하는 방법 및 단말
EP3016463A4 (en) * 2013-06-26 2017-02-22 Kyocera Corporation Communication control method
US20170094585A1 (en) * 2014-03-19 2017-03-30 Lg Electronics Inc. Method and apparatus for supporting small cell discovery in wireless communication system
US10772051B2 (en) * 2014-08-15 2020-09-08 Parallel Wireless, Inc. Inter-cell interference mitigation
WO2016165750A1 (en) * 2015-04-14 2016-10-20 Huawei Technologies Co., Ltd. Wireless communication device and method
US9749101B2 (en) * 2015-05-28 2017-08-29 Chiun Mai Communication Systems, Inc. Base station, method and system for reducing inter-cell interference
CA3000508C (en) * 2015-10-17 2019-01-22 Ofinno Technologies, Llc Control channel configuration in partial and full subframes
JP7064566B2 (ja) 2017-09-14 2022-05-10 オッポ広東移動通信有限公司 時間領域リソース確定方法、装置、記憶媒体及びシステム
US10707915B2 (en) * 2017-12-04 2020-07-07 Qualcomm Incorporated Narrowband frequency hopping mechanisms to overcome bandwidth restrictions in the unlicensed frequency spectrum
WO2019110089A1 (en) * 2017-12-05 2019-06-13 Huawei Technologies Co., Ltd. Radio access network controllers for radio access networks and associated methods
ES2942771T3 (es) * 2018-01-11 2023-06-06 Ntt Docomo Inc Terminal, método de comunicación por radio, estación base y sistema
CN110536420B (zh) * 2018-05-23 2022-04-01 中国移动通信有限公司研究院 配置物理下行控制信道时域检测位置的方法及设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008049966A1 (en) * 2006-10-23 2008-05-02 Nokia Corporation Method for reducing inter-cell interference in communications system
CN102469466A (zh) * 2010-11-11 2012-05-23 华为技术有限公司 一种干扰处理方法与装置
CN102843694A (zh) * 2011-06-20 2012-12-26 普天信息技术研究院有限公司 一种控制信息的发送方法和装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8504091B2 (en) * 2008-02-01 2013-08-06 Qualcomm Incorporated Interference mitigation for control channels in a wireless communication network
WO2010087172A1 (ja) * 2009-02-02 2010-08-05 三菱電機株式会社 移動体通信システム
RU2534739C2 (ru) * 2009-02-05 2014-12-10 Эппл Инк Способ и система беспроводной радиосвязи и способ пакетной передачи
WO2011159211A1 (en) * 2010-06-18 2011-12-22 Telefonaktiebolaget L M Ericsson (Publ) Methods and nodes for probing types of interfaces
US9078255B2 (en) * 2011-08-16 2015-07-07 Alcatel Lucent Method and apparatus for allocating almost blank subframes
US9473279B2 (en) * 2011-11-04 2016-10-18 Blackberry Limited Inter-cell interference coordination for E-PDCCH
US20130176874A1 (en) * 2011-12-09 2013-07-11 Qualcomm Incorporated Uplink power/rate shaping for enhanced interference coordination and cancellation
EP2826289B1 (en) * 2012-03-16 2020-06-03 Telefonaktiebolaget LM Ericsson (publ) Methods and apparatus for inter-cell interference coordination with protected subframes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008049966A1 (en) * 2006-10-23 2008-05-02 Nokia Corporation Method for reducing inter-cell interference in communications system
CN102469466A (zh) * 2010-11-11 2012-05-23 华为技术有限公司 一种干扰处理方法与装置
CN102843694A (zh) * 2011-06-20 2012-12-26 普天信息技术研究院有限公司 一种控制信息的发送方法和装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2958356A4 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9553680B1 (en) 2012-04-02 2017-01-24 Sprint Communications Company L.P. Uplink interference mitigation
US9907077B1 (en) 2012-04-02 2018-02-27 Sprint Communications Company L.P. Uplink interference mitigation
US10039116B1 (en) * 2012-04-02 2018-07-31 Sprint Communications Company L.P. Long term evolution scheduler to mitigate interference
EP3332580A4 (en) * 2015-08-05 2019-03-13 Telefonaktiebolaget LM Ericsson (PUBL) METHOD AND NETWORK NODES FOR DYNAMIC RESOURCE ALLOCATION FOR CONTROL CHANNELS
US10588131B2 (en) 2015-08-05 2020-03-10 Telefonaktiebolaget Lm Ericsson (Publ) Method and network node for dynamic resource allocation for control channels

Also Published As

Publication number Publication date
CN104322091B (zh) 2019-06-14
EP2958356A4 (en) 2016-03-16
US20150373731A1 (en) 2015-12-24
CN104322091A (zh) 2015-01-28
RU2612399C1 (ru) 2017-03-09
EP2958356A1 (en) 2015-12-23

Similar Documents

Publication Publication Date Title
WO2014131190A1 (zh) 一种减少控制信道干扰的方法、装置、设备及系统
WO2018127208A1 (zh) 上行和下行传输对齐的方法及装置
US20200059343A1 (en) Method and apparatus for transmitting and receiving data using plurality of carriers in mobile communication system
US9281912B2 (en) Indication and processing method and device for resource occupancy mode
EP2472940B1 (en) Method and apparatus for performing channel measurement for cell
EP3065427B1 (en) Radio base station, user terminal, and radio communication method
JP2019530272A (ja) Ueおよび基地局の動作方法
WO2015143445A1 (en) Device, network, and method for network adaptation and discovery
EP3113536B1 (en) Base station and method for measuring carrier aggregation between base stations
US10178658B2 (en) Base station, user equipment and associated methods
EP3925369B1 (en) Two-step random access procedure
JP6239299B2 (ja) 無線基地局、ユーザ端末および無線通信方法
JP2019532555A (ja) 無線通信システムにおいて端末の測定によるリソース選択及びデータ伝送方法及び装置
JP2016536846A (ja) 情報伝送方法、基地局、およびユーザ機器
WO2021118424A1 (en) Methods providing information messages including rach reports and related wireless devices
TW201838466A (zh) 處理量測間距的裝置及方法
JP2015142341A (ja) ユーザ端末、無線基地局、無線通信方法及び無線通信システム
US10306646B2 (en) Method for device-to-device communication, base station and user equipment
CN106717037B (zh) 一种装置
WO2012081480A1 (ja) 基地局、及び干渉基地局情報送信方法
JP2018207389A (ja) 基地局装置及び送信タイミング調整方法
WO2012092842A1 (zh) 测量的方法、基站和用户设备
KR20150017259A (ko) D2d 디스커버리 방법 및 그 장치
KR20130126353A (ko) 전송단, 단말, csi-rs 전송 서브프레임 시그널링 방법, 및 csi-rs 전송 서브프레임 확인 방법

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13876499

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2013876499

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2015141617

Country of ref document: RU

Kind code of ref document: A