WO2015139291A1 - 用于基站间交互的信息交互装置、方法以及通信系统 - Google Patents

用于基站间交互的信息交互装置、方法以及通信系统 Download PDF

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Publication number
WO2015139291A1
WO2015139291A1 PCT/CN2014/073825 CN2014073825W WO2015139291A1 WO 2015139291 A1 WO2015139291 A1 WO 2015139291A1 CN 2014073825 W CN2014073825 W CN 2014073825W WO 2015139291 A1 WO2015139291 A1 WO 2015139291A1
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WO
WIPO (PCT)
Prior art keywords
information
interaction
base station
user equipment
interaction information
Prior art date
Application number
PCT/CN2014/073825
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English (en)
French (fr)
Inventor
王轶
张磊
张翼
李宏超
Original Assignee
富士通株式会社
王轶
张磊
张翼
李宏超
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.)
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Publication date
Application filed by 富士通株式会社, 王轶, 张磊, 张翼, 李宏超 filed Critical 富士通株式会社
Priority to PCT/CN2014/073825 priority Critical patent/WO2015139291A1/zh
Publication of WO2015139291A1 publication Critical patent/WO2015139291A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/02Arrangements for optimising operational condition
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/16Interfaces between hierarchically similar devices
    • H04W92/20Interfaces between hierarchically similar devices between access points

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to an information interaction apparatus, method, and communication system for interaction between base stations.
  • each small base station has a small coverage area and a large number.
  • the small base station and the macro base station can occupy different frequency points and can occupy the same frequency point.
  • the loop between the small base station and the macro base station may be ideal, the instantaneous delay is small or completely negligible, and the transmission capability is strong. More typically, the loop between the small base station and the macro base station is non-ideal, that is, the transmission delay is large and the transmission capability is limited.
  • FIG. 1 is a schematic diagram of a coexistence of a small base station and a macro base station.
  • the user equipment can work in a carrier aggregation similar to that of different eNBs (That is, inter-eNB).
  • the small base station and the macro base station can be considered to belong to different eNBs, and the loop is not ideal.
  • scheduling policies For multiple eNBs connected by non-ideal loops, scheduling policies, uplink power control, and the like are performed independently by each eNB. Of course, the necessary information interaction between the eNBs can be provided to assist each eNB in making an overall optimal decision.
  • non-ideal loops lead to large delays, such as a typical value of 60 ms; and if relying on non-ideal loops, there is some information interaction that cannot provide auxiliary information for eNB decision-making in a timely manner.
  • the dynamically changing uplink and downlink configuration information has a typical change time of 10 to 40 ms. If the non-ideal loop interaction occurs, the uplink and downlink configuration information has expired.
  • Embodiments of the present invention provide an information interaction apparatus, method, and communication system for interaction between base stations.
  • an information interaction method for inter-base station interaction where the information is applied to a user equipment that is connected to at least two base stations including a first base station and a second base station.
  • Interaction methods include:
  • an information interaction method for inter-base station interaction includes:
  • an information interaction apparatus for inter-base station interaction which is connected to at least two base stations including a first base station and a second base station, where the information interaction apparatus includes:
  • the information acquiring unit acquires the interaction information used by the first base station for the inter-base station interaction, and the information reporting unit reports the interaction information to the second base station.
  • an information interaction apparatus for inter-base station interaction includes:
  • a configuration unit configured to configure a user equipment that is connected to the at least two base stations, including the first base station and the second base station, to enable the user equipment to acquire the interaction information sent by the first base station for interaction between the base stations, and The second base station reports the interaction information.
  • a communication system includes: a first base station, and sends interaction information for interaction between base stations to a user equipment;
  • the user equipment is connected to the first base station and the second base station, acquires the interaction information sent by the first base station, and reports the interaction information to the second base station.
  • a computer readable program wherein when the program is executed in a user equipment, the program causes a computer to perform inter-base station as described above in the user equipment Interactive information interaction method.
  • a storage medium storing a computer readable program
  • the computer readable program causes a computer to perform an information interaction method for inter-base station interaction as described above in a user equipment.
  • a computer readable program wherein when the program is executed in a base station, the program causes a computer to perform the inter-base station interaction as described above in the base station Information interaction method.
  • a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform an information interaction method for inter-base station interaction as described above in a base station.
  • the benefit of the embodiment of the present invention is that the user equipment acquires the interaction information used by the first base station for the interaction between the base stations, and reports the interaction information to the second base station; in the case of a non-ideal loop, the implementation is faster. Information exchange between different base stations.
  • 1 is a schematic diagram of a coexistence of a small base station and a macro base station
  • FIG. 2 is a schematic flowchart of an information interaction method according to Embodiment 1 of the present invention
  • 3 is a schematic structural diagram of a PUCCH format X according to Embodiment 1 of the present invention
  • FIG. 4 is another schematic structural diagram of a PUCCH format X according to Embodiment 1 of the present invention
  • 5 is a schematic diagram of resource mapping of a conventional PUSCH
  • FIG. 6 is a schematic diagram of mapping interaction information to an OFDM symbol immediately adjacent to an ACK/NACK according to Embodiment 1 of the present invention
  • FIG. 7 is a schematic diagram of mapping interaction information to subcarriers immediately adjacent to an ACK/NACK according to Embodiment 1 of the present invention.
  • FIG. 8 is a schematic diagram of mapping the interaction information to the subcarriers in the immediate vicinity of the RI according to Embodiment 1 of the present invention
  • FIG. 9 is a schematic diagram of mapping the interaction information to the front of the CQI/PMI according to Embodiment 1 of the present invention
  • FIG. 11 is a schematic diagram showing the mapping of the interaction information to the CQI/PMI in the first embodiment of the present invention
  • FIG. 12 is a schematic diagram of the CQI in the first embodiment of the present invention
  • FIG. 13 is a schematic flowchart of an information interaction method according to Embodiment 2 of the present invention
  • Figure 14 is a block diagram showing the structure of an information interaction apparatus according to Embodiment 3 of the present invention.
  • FIG. 15 is a schematic block diagram showing a system configuration of a user equipment according to Embodiment 3 of the present invention.
  • Figure 16 is a block diagram showing the structure of an information interaction apparatus according to Embodiment 4 of the present invention.
  • Figure 17 is a schematic block diagram showing the system configuration of a base station according to Embodiment 4 of the present invention.
  • Figure 18 is a block diagram showing the configuration of a communication system according to a fifth embodiment of the present invention.
  • An embodiment of the present invention provides an information interaction method for interaction between base stations, which is applied to a user equipment side that is connected to at least two base stations including a first base station and a second base station.
  • the information interaction method includes: Step 201: The user equipment acquires the interaction information that is sent by the first base station for the inter-base station interaction. Step 202: The user equipment reports the interaction information to the second base station.
  • the user equipment can remain connected to the first base station and the second base station.
  • the first base station may be a macro base station, and the second base station may be a small base station; or the first base station may be a small base station, and the second base station may be a macro base station.
  • the present invention is not limited thereto.
  • the first base station and the second base station may both be small base stations, and specific scenarios may be determined according to actual conditions.
  • the present invention is not limited to two base stations, and the user equipment can also be connected to three or more base stations and implement the present invention. Hereinafter, only two base stations will be described as an example.
  • the interaction information used for the inter-base station interaction may include the uplink and downlink configuration information, but the present invention is not limited thereto, and may be any information exchanged between the base stations.
  • the first base station may send the interaction information to the user equipment by using, for example, Downlink Control Information (DCI); the user equipment may obtain the interaction information by using any existing method.
  • DCI Downlink Control Information
  • the user equipment may report the interaction information to the second base station by using a media access control (MAC) layer signal or a physical layer signal.
  • MAC media access control
  • the interaction information can be obtained within 1 ms by DCI or the like, and the interaction information is reported to the second base station after the minimum processing delay, the interaction information can also be completed within several ms, so the interaction information can be obtained (for example, the change time is 10 ⁇ 40ms uplink and downlink configuration information) Complete transmission before failure to achieve faster information exchange between different base stations.
  • the following describes in detail how the user equipment reports the interaction information to the second base station.
  • the user equipment may carry the interaction information through the MAC layer signal.
  • the MAC layer control element (MAC CE) carrying the interaction information may be included in a first Physical Uplink Shared Channel (PUSCH).
  • PUSCH Physical Uplink Shared Channel
  • the user equipment acquires the information of the base station 1 (ie, the interaction information), k.
  • the interaction information is sent on the first PUSCH in the time, where k is the processing delay, k. For minimal processing delay.
  • the user equipment acquires base station 1 information at time n, at n+k.
  • the PUSCH that appears in the earliest time after the time includes the MAC CE, where the MAC CE is used to carry related information (ie, interaction information) acquired by the user equipment at the base station 1.
  • the interaction information may be carried by a physical layer signal.
  • the physical uplink control channel (PUCCH, Physical Uplink Control Channel) format is used to carry the interaction information.
  • FIG. 3 is a schematic structural diagram of a PUCCH format X according to an embodiment of the present invention.
  • the priority of the PUCCH carrying the interaction information may be smaller than the PUCCH carrying the ACK/NACK and/or the scheduling request (SR, Scheduling Request), and is larger than the PUCCH carrying the periodic CSI.
  • the PUCCH carrying the ACK/NACK/SR is preferentially The highest level, followed by the PUCCH carrying the information of the base station 1 (regardless of the type of information of the base station 1), followed by the PUCCH carrying the periodic CSI.
  • the priority of the PUCCH carrying the interaction information may be smaller than the PUCCH carrying the ACK/NACK and/or the scheduling request, and smaller than the PUCCH carrying the periodic CSI.
  • the PUCCH carrying the ACK/NACK/SR has the highest priority, followed by the PUCCH carrying the periodic CSI, and then the PUCCH carrying the information of the base station 1 (regardless of the type of the information of the base station 1).
  • the priority of the PUCCH carrying the interaction information may be smaller than the PUCCH carrying the ACK/NACK and/or the scheduling request and the periodic CSI.
  • the former has the highest priority.
  • the priority of the PUCCH carrying the interaction information may be determined according to the type of the interaction information. For example, the priority of the PUCCH carrying the ACK/NACK/SR is the highest, and the priority of the PUCCH when the information of the bearer base station 1 is type A is higher than the PUCCH carrying the periodic CSI, and the priority of the PUCCH when the information of the bearer base station 1 is type B is lower than the period.
  • the PUCCH of the CSI is the priority of the CSI.
  • the interaction information may be carried by a physical layer signal.
  • the interaction information, and ACK/NACK and/or scheduling request are carried using a PUCCH format configured by higher layer signaling.
  • FIG. 4 is another schematic structural diagram of a PUCCH format X according to an embodiment of the present invention.
  • the bit sequence in the PUCCH may be an ACK/NACK, a scheduling request, and the interaction information.
  • the bit order may be ACK/NACK first, followed by SR, then base station 1 information.
  • the interaction information is discarded.
  • the base station 1 information is discarded, and only ACK/NACK+SR is transmitted.
  • the number of bits of the ACK/NACK+SR+ base station 1 information does not exceed the maximum number of bits that the PUCCH format X can carry, it can be sent together; the resource occupied by the PUCCH format X and the PUCCH format 3 can be different.
  • the priority of the PUCCH carrying the interaction information, and the ACK/NACK and/or the scheduling request may be greater than the PUCCH carrying the periodic CSI.
  • the former has the highest priority.
  • the interaction information may be added to the PUSCH to carry the interaction information.
  • FIG. 5 is a schematic diagram of resource mapping of a conventional PUSCH.
  • the uplink shared channel (UL-SCH, Uplink Shared Channel) is mapped to the PUSCH
  • some resources are reserved for the base station 1 information, that is, the UL-SCH needs to perform rate matching or puncturing.
  • the base station assumes that the corresponding resource may always carry the base station 1 information even though the user equipment may not have transmitted the information.
  • the location of this information needs to be as close as possible to the demodulation reference signal. It is necessary to avoid ACK/NACK and where CSI may appear; or just avoid ACK/NACK and change the location of CSI.
  • This information can be modulated in the same way as the ACK/NACK and CSI information carried by the existing PUSCH.
  • the interaction information may be mapped into one or two slots, and the interaction information is mapped to resources as close as possible to the reference signal.
  • the following is only an example of mapping to two time slots.
  • the interaction information can be mapped on resources close to the ACK/NACK.
  • 6 is a schematic diagram of mapping interaction information (ie, base station 1 information) to an OFDM symbol immediately adjacent to an ACK/NACK according to an embodiment of the present invention
  • FIG. 7 is a diagram for mapping interaction information to a subcarrier adjacent to an ACK/NACK according to an embodiment of the present invention
  • the interaction information can also be mapped on a resource close to the rank indicator (RI).
  • FIG. 8 is a schematic diagram of mapping the interaction information to the subcarriers in the immediate vicinity of the RI according to the embodiment of the present invention. As shown in FIG. 8, the interaction information is mapped on the OFDM symbol immediately adjacent to the ACK/NACK and on the subcarrier adjacent to the RI.
  • the interaction information may also be mapped to a resource close to a Channel Quality Indicator (CQI) or a Precoding Matrix Indicator (PMI) in a first-time domain and a post-frequency domain.
  • CQI Channel Quality Indicator
  • PMI Precoding Matrix Indicator
  • the interaction information may be mapped in front of the CQI/PMI in a first time domain followed by a frequency domain.
  • FIG. 9 is a schematic diagram of mapping the interaction information to the front of the CQI/PMI according to the embodiment of the present invention. As shown in FIG. 9, the interaction information is mapped to the initial resource portion of the PUSCH resource in the order of the first-order and the backward frequency.
  • FIG. 10 is a schematic diagram of adding interaction information in front of a CQI resource according to an embodiment of the present invention.
  • the interaction information may also be mapped after the CQI/PMI in a first-time domain followed by a frequency domain.
  • FIG. 11 is a schematic diagram of mapping the interaction information to the CQI/PMI in the embodiment of the present invention. As shown in FIG. 11, the interaction information is mapped to the resource close to the CQI/PMI in the order of the first-time and the backward frequency.
  • FIG. 12 is a schematic diagram of adding interaction information after a CQI resource according to an embodiment of the present invention.
  • the uplink reference signal can be used to carry the interaction information.
  • the uplink reference signal similar to the physical random access channel (PRACH) signal structure may be used to carry the information of the base station 1.
  • the interaction information may be carried by different sequence of uplink reference signals.
  • a Zadoff-Chu sequence of 1.25 kHz/7.5 kHz and a length of N can be used.
  • Different base stations 1 may use Zadoff-Chu sequences with different root sequences, or different base station 1 information may use the same root sequence but different time domain offsets.
  • the interaction information includes at least uplink and downlink configuration information; however, the present invention is not limited thereto.
  • the uplink and downlink configuration information may include uplink and downlink configuration information of multiple cells of the first base station. That is, the user equipment may report uplink and downlink configuration information of multiple cells serving the user of the first base station to the second base station.
  • the user equipment needs to report the uplink and downlink configuration information of the two cells to the base station 2. Assuming that each Cell may have 8 configurations, represented by 3 bits, then 2 cells need a total of 6 bits, indicating the configuration of each cell.
  • multiple cells under base station 1 include frequency division duplexing (FDD, Frequency Division)
  • the base station 1 can semi-statically notify the base station 2 or semi-statically report the duplex mode of the cells to the base station 2 by the user equipment, and
  • the uplink and downlink configuration information of the cell in the TDD mode is dynamically notified to the base station 2 only.
  • the uplink and downlink configuration information may include information obtained by combining uplink and downlink configuration information of the multiple cells. That is, the user equipment may merge the uplink and downlink configurations of the plurality of cells serving the user of the first base station into unified configuration information, and report the information to the second base station. For example, the user equipment may report the information of the downlink (DL) subframes or the uplink (UL) subframes of the two cells under the base station 1 to the base station 2, without distinguishing the two under the base station 1 Cell specific uplink and downlink configuration of each Cell.
  • DL downlink
  • UL uplink
  • the uplink and downlink configuration information may include uplink and downlink configuration information of a partial cell of the first base station. That is, the user equipment may report the uplink and downlink configuration information of the cell serving as the user by the part of the first base station to the second base station. For example, the user equipment can be configured to report only the uplink and downlink configuration information of the Pcell.
  • the base station can configure in which form the user equipment is reported. For example, you can configure the user equipment to report the uplink and downlink configuration information of multiple cells, or configure the user equipment to report the combined information of the uplink and downlink configuration information of multiple cells, or configure the user equipment to report the uplink and downlink configuration information of some cells.
  • the invention is not limited thereto.
  • the interaction information may further include information of a user group.
  • the user equipment reports the base station 1 information, it can be scrambled by the group-RNTI to indicate that the reported base station 1 information is applicable to all user equipments in the group.
  • the information of the first base station needs to be reported to the second base station. In another embodiment, it may also be reported only by the user equipment configured to report.
  • the base station can configure this function for each user equipment, or can only configure some user equipments.
  • the user equipment that needs to perform the reporting information may report the interaction information to the second base station when the information of the first base station is changed; that is, once the information of the base station 1 is detected to change, the base station is sent to the base station. 2 reported.
  • the interaction information is reported to the second base station; for example, after receiving the trigger signaling of the base station 2, the base station 1 information may be reported to the base station 2; however, the present invention is not limited thereto.
  • the trigger signaling may be sent by other base stations.
  • the user equipment acquires the interaction information used by the first base station for the inter-base station interaction, and reports the interaction information to the second base station.
  • different base stations can be implemented faster.
  • the interaction between the information can be implemented faster.
  • the embodiment of the present invention provides an information exchange method for inter-base station interaction, which is applied to the base station side, and the same content as that of Embodiment 1 is not described herein.
  • FIG. 13 is a schematic flowchart of an information interaction method according to an embodiment of the present invention.
  • the information interaction method includes: Step 1301: Configure a user equipment that is connected to the at least two base stations that includes the first base station and the second base station, so that the user equipment acquires interaction information that is sent by the first base station for interaction between the base stations, and The second base station reports the interaction information.
  • One or more of the user equipments may be configured to report the interaction information by the one or more user equipments.
  • the user equipment may also be configured to report the form of the interaction information.
  • the user equipment acquires the interaction information used by the first base station for the inter-base station interaction, and reports the interaction information to the second base station.
  • different base stations can be implemented faster.
  • the interaction between the information can be implemented faster.
  • An embodiment of the present invention provides an information interaction apparatus for inter-base station interaction, which may be configured in a user equipment that is connected to at least two base stations including a first base station and a second base station, and the same content as in Embodiment 1 is no longer used. Narration.
  • FIG. 14 is a schematic diagram of a structure of an information interaction apparatus according to an embodiment of the present invention.
  • the information interaction apparatus 1400 includes: an information acquisition unit 1401 and an information reporting unit 1402.
  • the information acquisition unit 1401 acquires the first base station.
  • the information about the inter-base station interaction is sent; the information reporting unit 1402 reports the interaction information to the second base station.
  • the information reporting unit 1402 can carry the interaction information through a MAC layer signal.
  • the information reporting unit 1402 may include the MAC layer control element carrying the interaction information in the first PUSCH after the information acquiring unit 1401 obtains the interaction information and after a minimum processing delay.
  • the information reporting unit 1402 may carry the interaction information by using a physical layer signal.
  • the PUCCH format configured by the high layer signaling may be used to carry the interaction information; and in the same subframe, the priority of the PUCCH carrying the interaction information is smaller than the PUCCH carrying the ACK/NACK and/or the scheduling request, and is greater than The PUCCH carrying the periodic CSI; or the PUCCH carrying the interaction information has a lower priority than the PUCCH carrying the ACK/NACK and/or the scheduling request, and is smaller than the PUCCH carrying the periodic CSI; or the PUCCH carrying the interaction information The priority is less than the PUCCH carrying the ACK/NACK and/or the scheduling request, and the periodic CSI; or determining the bearer according to the type of the interaction information The priority of the PUCCH of the interaction information.
  • the PUCCH format configured by higher layer signaling may also be used to carry the interaction information, as well as ACK/NACK and/or scheduling requests.
  • the priority of the PUCCH carrying the interaction information, and the ACK/NACK and/or scheduling request is greater than the PUCCH carrying the periodic CSI.
  • the bit order in the PUCCH is ACK/NACK, scheduling request and the interaction information; and when the sum of the bits of the ACK/NACK, the scheduling request, and the interaction information exceeds the maximum number of bits of the PUCCH format, discarding The interaction information.
  • the interaction information may also be added to the PUSCH to carry the interaction information.
  • the interactive information can be mapped into one or two time slots.
  • the interaction information is mapped on a resource close to the ACK/NACK; or the interaction information is mapped on a resource near the rank indication.
  • the interaction information is mapped to resources close to the CQI/PMI in a first-time domain and a post-frequency domain manner.
  • an uplink reference signal can also be used to carry the interaction information.
  • the interaction information may include at least uplink and downlink configuration information.
  • the uplink and downlink configuration information may include uplink and downlink configuration information of multiple cells of the first base station, or information including combining uplink and downlink configuration information of the multiple cells, or include the first base station. Upstream and downlink configuration information of some cells.
  • the interaction information may further include information of a user group.
  • the information reporting unit 1402 may, when detecting that the information of the first base station changes, or when receiving the trigger signaling of the second base station, The second base station reports the interaction information.
  • An embodiment of the present invention further provides a user equipment, including the information interaction apparatus 1400 as described above.
  • Figure 15 is a schematic block diagram showing the system configuration of the user equipment 1500 according to the embodiment of the present invention.
  • the user equipment 1500 can include a central processing unit 100 and a memory 140; the memory 140 is coupled to the central processing unit 100.
  • the figure is exemplary; other types of structures may be used in addition to or in place of the structure to implement telecommunications functions or other functions.
  • the functionality of information interaction device 1400 can be integrated into central processor 100.
  • the central processing unit 100 can be configured to implement the information interaction method as described in Embodiment 1.
  • the information interaction device 1400 can be configured separately from the central processing unit 100.
  • the information interaction device 1400 can be configured as a chip connected to the central processing unit 100, and the information interaction device 1400 can be implemented by control of the central processing unit.
  • the user equipment 1500 may further include: a communication module 110, an input unit 120, an audio processing unit 130, a display 160, and a power supply 170. It should be noted that the user equipment 1500 does not have to include all the components shown in FIG. 15; in addition, the user equipment 1500 may further include components not shown in FIG. 15, and reference may be made to the prior art.
  • central processor 100 also sometimes referred to as a controller or operational control, may include a microprocessor or other processor device and/or logic device that receives input and controls each of user devices 1500. The operation of the part.
  • the memory 140 may be, for example, one or more of a buffer, a flash memory, a hard drive, a removable medium, a volatile memory, a non-volatile memory, or other suitable device.
  • the above-mentioned information related to the failure can be stored, and a program for executing the related information can be stored.
  • the central processing unit 100 can execute the program stored in the memory 140 to implement information storage or processing and the like.
  • the functions of other components are similar to those of the existing ones and will not be described here.
  • the various components of user equipment 1500 may be implemented by special purpose hardware, firmware, software or a combination thereof without departing from the scope of the invention.
  • the user equipment acquires the interaction information used by the first base station for the inter-base station interaction, and reports the interaction information to the second base station.
  • different base stations can be implemented faster.
  • the interaction between the information can be implemented faster.
  • the embodiment of the present invention provides an information interaction apparatus for inter-base station interaction, which corresponds to the information interaction method in Embodiment 2, and the same content is not described herein again.
  • FIG. 16 is a schematic structural diagram of an information interaction apparatus according to an embodiment of the present invention.
  • the information interaction apparatus 1600 includes: a configuration unit 1601; the configuration unit 1601 is configured to include at least a first base station and a second base station.
  • the user equipments that are connected to the two base stations are configured, and the user equipments obtain the interaction information used by the first base station for inter-base station interaction, and report the interaction information to the second base station.
  • the configuration unit 1601 may configure one or more of the user equipments, so that the one or more user equipments report the interaction information.
  • the configuration unit 1601 is further configured to configure a form in which the user equipment reports the interaction information.
  • FIG. 17 is a schematic diagram of a structure of a base station according to an embodiment of the present invention.
  • the base station 1700 can include A central processing unit (CPU) 200 and a memory 210; the memory 210 is coupled to the central processing unit 200.
  • the memory 210 can store various data; in addition, a program for information processing is stored, and the program is executed under the control of the central processing unit 200 to receive various information transmitted by the user equipment, and send the request information to the user equipment.
  • the functionality of information interaction device 1600 can be integrated into central processor 200.
  • the central processing unit 200 can be configured to implement the information interaction method as described in Embodiment 2.
  • the information interaction device 1600 can be configured separately from the central processing unit.
  • the information interaction device 1600 can be configured as a chip connected to the central processing unit 200, and the information interaction device 1600 can be implemented by the control of the central processing unit.
  • the base station 1700 may further include: a transceiver 220, an antenna 230, and the like; wherein the functions of the foregoing components are similar to the prior art, and details are not described herein again. It should be noted that the base station 1700 does not have to include all the components shown in FIG. 17; in addition, the base station 1700 may also include components not shown in FIG. 17, and reference may be made to the prior art.
  • the user equipment acquires the interaction information used by the first base station for the inter-base station interaction, and reports the interaction information to the second base station.
  • different base stations can be implemented faster.
  • the interaction between the information can be implemented faster.
  • the embodiment of the present invention provides a communication system, and the same content as Embodiments 1 to 4 will not be described again.
  • FIG. 18 is a schematic structural diagram of a communication system according to an embodiment of the present invention, as shown in FIG. 18, the communication system
  • 1800 includes:
  • the first base station 1801 sends, to the user equipment 1803, interaction information for interaction between the base stations;
  • the second base station 1802 receives the interaction information reported by the user equipment 1803.
  • the user equipment 1803 is connected to the first base station 1801 and the second base station 1802, and obtains the interaction information sent by the first base station 1801 and reports the interaction information to the second base station 1802.
  • the user equipment 1803 may include the information interaction apparatus 1400 described in Embodiment 3.
  • the second base station 1802 may include the information interaction device 1600 described in Embodiment 4, but the present invention is not limited thereto.
  • the user equipment 1803 may be configured by other base stations.
  • An embodiment of the present invention further provides a computer readable program, wherein when the program is executed in a user equipment The program causes the computer to execute the information interaction method described in Embodiment 1 in the user equipment.
  • An embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes a computer to execute the information interaction method described in Embodiment 1 in a user equipment.
  • the embodiment of the present invention further provides a computer readable program, wherein when the program is executed in a base station, the program causes a computer to execute the information interaction method described in Embodiment 2 in the base station.
  • the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes a computer to execute the information interaction method described in Embodiment 2 in a base station.
  • the above apparatus and method of the present invention may be implemented by hardware, or may be implemented by hardware in combination with software.
  • the present invention relates to a computer readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to cause the logic component to implement the various methods described above Or steps.
  • the present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, and the like.
  • One or more of the functional blocks described in the figures and/or one or more combinations of functional blocks may be implemented as a general purpose processor, digital signal processor (DSP) for performing the functions described herein.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • One or more of the functional blocks described with respect to the figures and/or one or more combinations of functional blocks may also be implemented as a combination of computing devices, eg, a combination of a DSP and a microprocessor, multiple microprocessors One or more microprocessors in conjunction with DSP communication or any other such configuration.
  • An information interaction device for inter-base station interaction which is connected to at least two base stations including a first base station and a second base station, where the information interaction device includes:
  • the information acquiring unit acquires the interaction information used by the first base station for the inter-base station interaction, and the information reporting unit reports the interaction information to the second base station.
  • the information interaction device wherein the information reporting unit carries the interaction information by using a MAC layer signal.
  • the information interaction device wherein the information reporting unit, after the information acquisition unit obtains the interaction information and has undergone a minimum processing delay, carries a MAC layer control element of the interaction information. It is included in the first PUSCH.
  • the information interaction device wherein the information reporting unit carries the interaction information by using a physical layer signal.
  • the priority of the PUCCH carrying the interaction information is smaller than the PUCCH carrying the ACK/NACK and/or the scheduling request, and is greater than the PUCCH carrying the periodic CSI; or the priority of the PUCCH carrying the interaction information is less than a PUCCH carrying an ACK/NACK and/or a scheduling request, and being smaller than a PUCCH carrying a periodic CSI; or, a PUCCH carrying the interaction information has a lower priority than a PUCCH carrying an ACK/NACK and/or a scheduling request, and a periodic CSI Or determining a priority of the PUCCH carrying the interaction information according to the type of the interaction information.
  • the priority of the PUCCH carrying the interaction information, and the ACK/NACK and/or the scheduling request is greater than the PUCCH carrying the periodic CSI.
  • a bit order in the PUCCH is an ACK/NACK, a scheduling request, and the interaction information
  • the interaction information is discarded when the sum of the bits of the ACK/NACK, the scheduling request, and the interaction information exceeds the maximum number of bits of the PUCCH format.

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Abstract

本发明实施例提供一种用于基站间交互的信息交互装置、方法以及通信系统。所述方法包括:用户设备获取第一基站发送的用于基站间交互的交互信息,向第二基站上报所述交互信息。通过本发明实施例,可以在非理想回路的情况下,实现更快的不同基站之间的信息交互。

Description

用于基站间交互的信息交互装置、 方法以及通信系统 技术领域
本发明涉及一种通信技术领域, 特别涉及一种用于基站间交互的信息交互装置、 方法以及通信系统。
背景技术
随着小基站(small cell)的不断发展,在 Rel-12中,将出现一个宏基站(macro cell) 覆盖范围内有多个小基站的场景。 每个小基站的覆盖面积较小, 数量较多。 小基站与 宏基站可以占用不同的频点, 也可以占用相同的频点。 小基站与宏基站间的回路 (backhaul) 可以是理想的, 即时延很小或可完全忽略不计, 且传输能力强。 更典型 的是, 小基站与宏基站间的回路是非理想的, 即传输时延较大且传输能力有限。
图 1是小基站和宏基站共存的一示意图, 如图 1所示, 若用户设备可同时与小基 站和宏基站保持连接,则用户设备可以工作在一种类似于不同 eNB下的载波聚合(即 inter-eNB)。 在这种场景下, 小基站与宏基站可以被认为属于不同的 eNB, 且回路非 理想。
对于由非理想回路连接的多个 eNB, 调度策略、 上行功控等均是由各个 eNB独 立进行的。 当然, 各个 eNB之间可以有必要的信息交互, 以辅助各个 eNB做出整体 最优的决策。
应该注意, 上面对技术背景的介绍只是为了方便对本发明的技术方案进行清楚、 完整的说明, 并方便本领域技术人员的理解而阐述的。不能仅仅因为这些方案在本发 明的背景技术部分进行了阐述而认为上述技术方案为本领域技术人员所公知。
发明内容
但是, 发明人发现: 由于非理想回路会导致较大的时延, 例如典型值为 60ms; 而如果依靠非理想回路的话, 有一些信息的交互无法及时地为 eNB 的决策提供辅助 信息。 例如, 动态变化的上下行配置信息, 其典型的变化时间在 10~40ms, 若经过非 理想回路交互, 则该上下行配置信息已经失效。
本发明实施例提供一种用于基站间交互的信息交互装置、方法以及通信系统。在 非理想回路的情况下, 实现更快的不同基站之间的信息交互。
根据本发明实施例的第一个方面, 提供一种用于基站间交互的信息交互方法, 应 用于与包括第一基站和第二基站的至少两个基站保持连接的用户设备中,所述信息交 互方法包括:
用户设备获取所述第一基站发送的用于基站间交互的交互信息;
向所述第二基站上报所述交互信息。
根据本发明实施例的第二个方面, 提供一种用于基站间交互的信息交互方法, 所 述信息交互方法包括:
对与包括第一基站和第二基站的至少两个基站保持连接的用户设备进行配置;使 得所述用户设备获取所述第一基站发送的用于基站间交互的交互信息,并向所述第二 基站上报所述交互信息。
根据本发明实施例的第三个方面, 提供一种用于基站间交互的信息交互装置, 与 包括第一基站和第二基站的至少两个基站保持连接, 所述信息交互装置包括:
信息获取单元, 获取所述第一基站发送的用于基站间交互的交互信息; 信息上报单元, 向所述第二基站上报所述交互信息。
根据本发明实施例的第四个方面, 提供一种用于基站间交互的信息交互装置, 所 述信息交互装置包括:
配置单元,对与包括第一基站和第二基站的至少两个基站保持连接的用户设备进 行配置; 使得所述用户设备获取所述第一基站发送的用于基站间交互的交互信息, 并 向所述第二基站上报所述交互信息。
根据本发明实施例的第五个方面, 提供一种通信系统, 所述通信系统包括: 第一基站, 向用户设备发送用于基站间交互的交互信息;
第二基站, 接收用户设备上报的所述交互信息;
用户设备, 与所述第一基站和所述第二基站保持连接, 获取所述第一基站发送的 所述交互信息并向所述第二基站上报所述交互信息。
根据本发明实施例的又一个方面, 提供一种计算机可读程序, 其中当在用户设备 中执行所述程序时,所述程序使得计算机在所述用户设备中执行如上所述的用于基站 间交互的信息交互方法。
根据本发明实施例的又一个方面, 提供一种存储有计算机可读程序的存储介质, 其中所述计算机可读程序使得计算机在用户设备中执行如上所述的用于基站间交互 的信息交互方法。
根据本发明实施例的又一个方面, 提供一种计算机可读程序, 其中当在基站中执 行所述程序时,所述程序使得计算机在所述基站中执行如上所述的用于基站间交互的 信息交互方法。
根据本发明实施例的又一个方面, 提供一种存储有计算机可读程序的存储介质, 其中所述计算机可读程序使得计算机在基站中执行如上所述的用于基站间交互的信 息交互方法。
本发明实施例的有益效果在于,通过用户设备获取第一基站发送的用于基站间交 互的交互信息, 并向第二基站上报所述交互信息; 可以在非理想回路的情况下, 实现 更快的不同基站之间的信息交互。
参照后文的说明和附图, 详细公开了本发明的特定实施方式, 指明了本发明的原 理可以被采用的方式。 应该理解, 本发明的实施方式在范围上并不因而受到限制。 在 所附权利要求的精神和条款的范围内,本发明的实施方式包括许多改变、修改和等同。
针对一种实施方式描述和 /或示出的特征可以以相同或类似的方式在一个或更多 个其它实施方式中使用, 与其它实施方式中的特征相组合, 或替代其它实施方式中的 特征。
应该强调, 术语 "包括 /包含"在本文使用时指特征、 整件、 步骤或组件的存在, 但并不排除一个或更多个其它特征、 整件、 步骤或组件的存在或附加。 附图说明
参照以下的附图可以更好地理解本发明的很多方面。 附图中的部件不是成比例 绘制的, 而只是为了示出本发明的原理。 为了便于示出和描述本发明的一些部分, 附 图中对应部分可能被放大或缩小。
在本发明的一个附图或一种实施方式中描述的元素和特征可以与一个或更多个 其它附图或实施方式中示出的元素和特征相结合。 此外, 在附图中, 类似的标号表示 几个附图中对应的部件, 并可用于指示多于一种实施方式中使用的对应部件。
图 1是小基站和宏基站共存的一示意图;
图 2是本发明实施例 1的信息交互方法的一流程示意图; 图 3是本发明实施例 1的 PUCCH format X的一结构示意图; 图 4是本发明实施例 1的 PUCCH format X的另一结构示意图;
图 5是现有的 PUSCH的资源映射的一示意图;
图 6是本发明实施例 1的将交互信息映射到紧邻 ACK/NACK的 OFDM符号的 一示意图;
图 7是本发明实施例 1的将交互信息映射到紧邻 ACK/NACK的子载波的一示 意图;
图 8是本发明实施例 1的将交互信息映射到紧邻 RI的子载波的一示意图; 图 9是本发明实施例 1的将交互信息映射到 CQI/PMI的前面的一示意图; 图 10是本发明实施例 1的在 CQI资源前面增加交互信息的一示意图; 图 11是本发明实施例 1的将交互信息映射到 CQI/PMI的后面的一示意图; 图 12是本发明实施例 1的在 CQI资源后面增加交互信息的一示意图; 图 13是本发明实施例 2的信息交互方法的一流程示意图;
图 14是本发明实施例 3的信息交互装置的一构成示意图;
图 15是本发明实施例 3的用户设备的系统构成的一示意框图;
图 16是本发明实施例 4的信息交互装置的一构成示意图;
图 17是本发明实施例 4的基站的系统构成的一示意框图;
图 18是本发明实施例 5的通信系统的一构成示意图。
具体实施方式
参照附图, 通过下面的说明书, 本发明的前述以及其它特征将变得明显。在说明 书和附图中, 具体公开了本发明的特定实施方式, 其表明了其中可以采用本发明的原 则的部分实施方式, 应了解的是, 本发明不限于所描述的实施方式, 相反, 本发明包 括落入所附权利要求的范围内的全部修改、 变型以及等同物。
实施例 1
本发明实施例提供一种用于基站间交互的信息交互方法,应用于与包括第一基站 和第二基站的至少两个基站保持连接的用户设备侧。
图 2是本发明实施例的信息交互方法的一流程示意图, 如图 2所示, 该信息交互 方法包括: 步骤 201, 用户设备获取第一基站发送的用于基站间交互的交互信息; 步骤 202, 用户设备向第二基站上报该交互信息。
在本实施例中, 用户设备可以和第一基站和第二基站保持连接。 其中, 第一基站 可以是宏基站, 第二基站可以是小基站; 或者第一基站可以是小基站、 第二基站可以 是宏基站。但本发明不限于此, 例如第一基站和第二基站可以均为小基站, 可以根据 实际情况确定具体的场景。 此外, 本发明不限于两个基站, 用户设备还可以和三个以 上的基站保持连接并实施本发明, 以下仅以两个基站为例进行说明。
在本实施例中, 用于基站间交互的交互信息可以包括上下行配置信息, 但本发明 不限于此, 还可以是任意的基站间交互的信息。第一基站可以通过例如下行控制信息 (DCI, Downlink Control Information)等将该交互信息发送给用户设备; 用户设备可 以采用现有的任意方法获得该交互信息。
在本实施例中,用户设备在获得该交互信息之后,可以通过媒体访问控制(MAC, Media Access Control)层信号或者物理层信号向第二基站上报该交互信息。 由于通过 DCI等可以在 1ms之内获得该交互信息,而经过最小处理时延之后向第二基站上报该 交互信息也可以在几个 ms之内完成, 因此可以在该交互信息 (例如变化时间为 10~ 40ms的上下行配置信息) 失效前完成传输, 实现更快的不同基站之间的信息交互。
以下对于用户设备如何向第二基站上报交互信息进行详细说明。
在一个实施方式中, 用户设备可以通过 MAC层信号来承载交互信息。 在获得所 述交互信息且经过最小处理时延之后, 可以将承载所述交互信息的 MAC层控制元素 ( MAC CE ) 包含在第一个物理上行共享信道 (PUSCH, Physical Uplink Shared Channel) 中。
具体地, 可以在用户设备获取基站 1 信息 (即交互信息) 后, k。时间内的首个 PUSCH上发送交互信息, 其中 k为处理时延, k。为最小处理时延。 例如, 用户设备 在时刻 n获取基站 1信息,在 n+k。时刻后最早出现的 PUSCH中包含 MAC CE,其中 该 MAC CE用于承载用户设备在基站 1获取的相关信息 (即交互信息)。
在另一个实施方式中, 可以通过物理层信号来承载所述交互信息。 其中, 使用物 理上行控制信道 (PUCCH, Physical Uplink Control Channel) 格式来承载所述交互信 息。
具体地, 可以引入新的 PUCCH format X, 仅承载来自基站 1的信息 (即交互信 息), 其信号结构可与现有的 PUCCH format 2或者 PUCCH format 3相同, 其资源是 通过高层信令配置的。 图 3是本发明实施例的 PUCCH format X的一结构示意图。
在同一子帧中,承载所述交互信息的 PUCCH的优先级可以小于承载 ACK/NACK 和 /或调度请求 (SR, Scheduling Request) 的 PUCCH, 并且大于承载周期性 CSI的 PUCCH。例如,当在同一个 subframe中同时可能出现承载 ACK/NACK/SR的 PUCCH, 和 /或承载周期性 CSI 的 PUCCH , 和 /或承载基站 1 信息的 PUCCH 时, 承载 ACK/NACK/SR的 PUCCH优先级最高, 其次是承载基站 1信息的 PUCCH (不考虑 基站 1信息的类型), 再其次是承载周期性 CSI的 PUCCH。
或者, 在同一子帧中, 承载所述交互信息的 PUCCH 的优先级可以小于承载 ACK/NACK禾 Π/或调度请求的 PUCCH, 并且小于承载周期性 CSI的 PUCCH。 例如, 承载 ACK/NACK/SR的 PUCCH优先级最高, 其次是承载周期性 CSI的 PUCCH, 再 其次是承载基站 1信息的 PUCCH (不考虑基站 1信息的类型)。
或者, 在同一子帧中, 承载所述交互信息的 PUCCH 的优先级可以小于承载 ACK/NACK禾 Π/或调度请求、 以及周期性 CSI的 PUCCH。例如, 当在同一个 subframe 中同时可能出现承载 ACK/NACK/SR+周期性 CSI的 PUCCH, 和 /或承载基站 1信息 的 PUCCH时, 前者的优先级最高。
或者,可以根据所述交互信息的类型确定承载所述交互信息的 PUCCH的优先级。 例如, 承载 ACK/NACK/SR的 PUCCH优先级最高, 承载基站 1信息为类型 A时的 PUCCH优先级高于承载周期性 CSI的 PUCCH,承载基站 1信息为类型 B时的 PUCCH 优先级低于周期性 CSI的 PUCCH。
在另一个实施方式中, 可以通过物理层信号来承载所述交互信息。 其中, 使用通 过高层信令配置的 PUCCH格式来承载所述交互信息、 以及 ACK/NACK和 /或调度请 求。
具体地,可以引入新的 PUCCH format X用于承载 ACK/NACK+SR+基站 1信息, 其信号结构可与现有的 PUCCH format 2或者 PUCCH format 3相同,其资源是通过高 层信令配置的。 图 4是本发明实施例的 PUCCH format X的另一结构示意图。
其中, 在所述 PUCCH中的比特顺序可以为 ACK/NACK, 调度请求和所述交互 信息。 例如, 比特顺序可以是 ACK/NACK在最前, 紧接着是 SR, 然后是基站 1信 息。 其中, 在 ACK/NACK、 调度请求和所述交互信息的比特之和超过所述 PUCCH 格式的最大比特数时, 丢弃所述交互信息。 例如, 当 ACK/NACK+SR+基站 1信息的 比特数超过 PUCCH format X 可承载的最大比特数时, 丢掉基站 1 信息, 只发送 ACK/NACK+SR。 当 ACK/NACK+SR+基站 1信息的比特数未超过 PUCCH format X 可承载的最大比特数时,可以一起发送;该 PUCCH format X所占用的资源和 PUCCH format 3可以是不同的。
在同一子帧中, 承载所述交互信息、 以及 ACK/NACK和 /或调度请求的 PUCCH 的优先级可以大于承载周期性 CSI的 PUCCH。 例如, 当在同一个 subframe中同时可 能出现承载 ACK/NACK/SR+基站 1信息的 PUCCH,和 /或承载周期性 CSI的 PUCCH 时, 前者的优先级最高。
在另一个实施方式中, 可以将所述交互信息加入 PUSCH来承载所述交互信息。 图 5是现有的 PUSCH的资源映射的一示意图。
具体地, 上行共享信道(UL-SCH, Uplink Shared Channel)在映射到 PUSCH时, 需预留部分资源用于放置基站 1信息, 即 UL-SCH需进行速率匹配或打孔。基站假设 相应的资源总是可能承载基站 1信息, 即使用户设备可能没有发送该信息。这个信息 的摆放位置需要尽量靠近解调参考信号。 需要避开 ACK/NACK以及 CSI可能出现的 地方; 或者只避开 ACK/NACK的地方, 而将 CSI的地方改动。 这个信息可采用与现 有 PUSCH承载的 ACK/NACK和 CSI信息相同的调制编码方式。
具体地, 所述交互信息可以被映射到一个或两个时隙 (slot) 中, 所述交互信息 被映射到尽量靠近参考信号的资源上。 以下仅以被映射到两个时隙为例进行说明。
例如, 交互信息可以被映射在靠近 ACK/NACK的资源上。 图 6是本发明实施例 的将交互信息 (即基站 1信息) 映射到紧邻 ACK/NACK的 OFDM符号的一示意图, 图 7是本发明实施例的将交互信息映射到紧邻 ACK/NACK的子载波的一示意图。
或者, 交互信息还可以被映射在靠近秩指示 (RI, Rank Indicator) 的资源上。 图 8是本发明实施例的将交互信息映射到紧邻 RI的子载波的一示意图, 如图 8所示, 交互信息映射在紧邻 ACK/NACK的 OFDM符号、 且紧邻 RI的子载波上。
或者, 所述交互信息还可以以先时域后频域的方式被映射在靠近信道质量指示 ( CQI , Channel Quality Indicator ) 或者预编码矩阵指示 (PMI, Precoding Matrix Indicator) 的资源上。 例如,所述交互信息可以以先时域后频域的方式被映射在 CQI/PMI的前面。 图 9 是本发明实施例的将交互信息映射到 CQI/PMI的前面的一示意图, 如图 9所示, 交 互信息以先时后频的顺序, 映射在 PUSCH资源的起始资源部分。 图 10是本发明实 施例的在 CQI资源前面增加交互信息的一示意图。
或者, 所述交互信息还可以以先时域后频域的方式被映射在 CQI/PMI 的后面。 图 11是本发明实施例的将交互信息映射到 CQI/PMI的后面的一示意图, 如图 11所 示, 交互信息以先时后频的顺序, 映射在靠近 CQI/PMI的资源处。 图 12是本发明实 施例的在 CQI资源后面增加交互信息的一示意图。
在另一个实施方式中, 可以使用上行参考信号来承载所述交互信息。 具体地, 可 以采取与物理随机接入信道(PRACH, Physical Random Access Channel)信号结构类 似的上行参考信号来承载基站 1的信息。具体地, 可以由不同序列的上行参考信号来 承载所述交互信息。
例如, 可以采用 1.25KHz/7.5KHz, 长度为 N的 Zadoff-Chu序列。 不同的基站 1 信息可以采用根序列不同的 Zadoff-Chu序列, 或者不同的基站 1信息可以采用相同 的根序列但不同的时域偏移。
在本实施例中, 所述交互信息至少包括上下行配置信息; 但本发明不限于此。 其中, 所述上下行配置信息可以包括所述第一基站的多个小区的上下行配置信 息。即,用户设备可以将第一基站的多个为用户服务的 Cell的上下行配置信息均报告 给第二基站。
例如, 假设基站 1下有 2个 Cell为用户服务, 那么用户设备需将 2个 Cell的上 下行配置信息分别上报给基站 2。 假设每个 Cell可能有 8种配置, 以 3比特表示, 那 么 2个 Cell共需要 6比特, 分别指示每个 cell的配置。
此外, 若基站 1 下的多个 cell中包括采用频分双工 (FDD, Frequency Division
Duplex) 方式的 cell和采用时分双工 (TDD, Time Division Duplex) 方式的 cell, 则 基站 1可以半静态地通知基站 2或者由用户设备半静态地报告给基站 2 这些 cell的 双工方式, 并且仅动态地通知基站 2采用 TDD方式的 cell的上下行配置信息。
或者,所述上下行配置信息可以包括将所述多个小区的上下行配置信息合并后的 信息。即,用户设备可以将第一基站的多个为用户服务的 Cell的上下行配置合并为统 一的配置信息, 报告给第二基站。 例如, 用户设备可以将基站 1下的 2个 Cell均为下行链路 (DL) 的 subframes 或者均为上行链路 (UL) 的 subframes的信息报告给基站 2, 而不区分基站 1下的 2 个 Cell具体的每个 Cell的上下行配置。
或者, 所述上下行配置信息可以包括所述第一基站的部分小区的上下行配置信 息。 即, 用户设备可以将第一基站的部分为用户服务的 cell的上下行配置信息报告给 第二基站。 例如, 用户设备可以被配置为仅上报 Pcell的上下行配置信息。
此外, 基站可以配置用户设备以哪种形式上报。 例如, 配置用户设备上报多个小 区的上下行配置信息,或者配置用户设备上报多个小区的上下行配置信息合并后的信 息, 或者配置用户设备上报部分小区的上下行配置信息。 但本发明不限于此。
在本实施例中, 所述交互信息还可以包括用户组的信息。 例如, 用户设备上报基 站 1信息时, 可以用组 -RNTI进行加扰, 以表征上报的基站 1信息对于该组内的所有 用户设备适用。
在一个实施方式中, 对于任何具有辅助上报信息能力的用户设备, 均需要向第二 基站上报第一基站的信息。在另一个实施方式中, 也可以仅由被配置为上报的用户设 备进行上报。 基站可以为每个用户设备配置该功能, 也可以仅配置部分用户设备。
在本实施例中, 对于需要进行上报信息的用户设备, 可以在检测到第一基站的信 息发生变化的情况下向第二基站上报交互信息; 即一旦检测到基站 1信息发生变化, 就向基站 2上报。或者在接收到基站发送的触发信令的情况下, 向第二基站上报交互 信息; 例如可以在收到基站 2的触发信令后, 向基站 2上报基站 1信息; 但本发明不 限于此, 例如还可以是由其他基站发送该触发信令。
由上述实施例可知,通过用户设备获取第一基站发送的用于基站间交互的交互信 息, 并向第二基站上报所述交互信息; 可以在非理想回路的情况下, 实现更快的不同 基站之间的信息交互。 实施例 2
本发明实施例提供一种用于基站间交互的信息交互方法, 应用于基站侧, 与实施 例 1相同的内容不再赘述。
图 13是本发明实施例的信息交互方法的一流程示意图, 如图 13所示, 该信息交 互方法包括: 步骤 1301, 对与包括第一基站和第二基站的至少两个基站保持连接的用户设备 进行配置; 使得所述用户设备获取所述第一基站发送的用于基站间交互的交互信息, 并向所述第二基站上报所述交互信息。
其中, 可以对一个或多个所述用户设备进行配置, 使得所述一个或多个用户设备 上报所述交互信息。此外,还可以对所述用户设备上报所述交互信息的形式进行配置。
由上述实施例可知,通过用户设备获取第一基站发送的用于基站间交互的交互信 息, 并向第二基站上报所述交互信息; 可以在非理想回路的情况下, 实现更快的不同 基站之间的信息交互。 实施例 3
本发明实施例提供一种用于基站间交互的信息交互装置,可以配置在与包括第一 基站和第二基站的至少两个基站保持连接的用户设备中,与实施例 1相同的内容不再 赘述。
图 14是本发明实施例的信息交互装置的一构成示意图, 如图 14所示, 所述信息 交互装置 1400包括: 信息获取单元 1401和信息上报单元 1402; 其中, 信息获取单 元 1401获取第一基站发送的用于基站间交互的交互信息;信息上报单元 1402向第二 基站上报所述交互信息。
在一个实施方式中, 信息上报单元 1402可以通过 MAC层信号来承载所述交互 信息。其中, 所述信息上报单元 1402可以在所述信息获取单元 1401获得所述交互信 息且经过最小处理时延之后, 将承载所述交互信息的 MAC层控制元素包含在第一个 PUSCH中。
在另一个实施方式中, 所述信息上报单元 1402可以通过物理层信号来承载所述 交互信息。
例如, 可以使用通过高层信令配置的 PUCCH格式来承载所述交互信息; 以及同 一子帧中, 承载所述交互信息的 PUCCH的优先级小于承载 ACK/NACK和 /或调度请 求的 PUCCH,并且大于承载周期性 CSI的 PUCCH;或者,承载所述交互信息的 PUCCH 的优先级小于承载 ACK/NACK和 /或调度请求的 PUCCH, 并且小于承载周期性 CSI 的 PUCCH; 或者, 承载所述交互信息的 PUCCH的优先级小于承载 ACK/NACK和 / 或调度请求、 以及周期性 CSI的 PUCCH; 或者, 根据所述交互信息的类型确定承载 所述交互信息的 PUCCH的优先级。
例如, 还可以使用通过高层信令配置的 PUCCH格式来承载所述交互信息、 以及 ACK/NACK和 /或调度请求。 同一子帧中, 承载所述交互信息、 以及 ACK/NACK禾口 / 或调度请求的 PUCCH的优先级大于承载周期性 CSI的 PUCCH。 在所述 PUCCH中 的比特顺序为 ACK/NACK, 调度请求和所述交互信息; 以及在 ACK/NACK、 调度请 求和所述交互信息的比特之和超过所述 PUCCH格式的最大比特数时, 丢弃所述交互 信息。
例如, 还可以将所述交互信息加入 PUSCH来承载所述交互信息。 其中, 所述交 互信息可以被映射到一个或两个时隙中。 所述交互信息被映射在靠近 ACK/NACK的 资源上; 或者, 所述交互信息被映射在靠近秩指示的资源上。 或者, 所述交互信息以 先时域后频域的方式被映射在靠近 CQI/PMI的资源上。
例如, 还可以使用上行参考信号来承载所述交互信息。
在本实施例中, 所述交互信息至少可以包括上下行配置信息。 其中, 所述上下行 配置信息可以包括所述第一基站的多个小区的上下行配置信息;或者包括将所述多个 小区的上下行配置信息合并后的信息;或者包括所述第一基站的部分小区的上下行配 置信息。 或者, 所述交互信息还可以包括用户组的信息。
在本实施例中, 所述信息上报单元 1402可以在检测到所述第一基站的信息发生 变化的情况下、或者在接收到所述第二基站的触发信令的情况下, 向所述第二基站上 报所述交互信息。
本发明实施例还提供一种用户设备, 包括如上所述的信息交互装置 1400。
图 15是本发明实施例的用户设备 1500的系统构成的一示意框图。如图 15所示, 该用户设备 1500可以包括中央处理器 100和存储器 140; 存储器 140耦合到中央处 理器 100。 值得注意的是, 该图是示例性的; 还可以使用其他类型的结构, 来补充或 代替该结构, 以实现电信功能或其他功能。
在一个实施方式中,信息交互装置 1400的功能可以被集成到中央处理器 100中。 其中, 中央处理器 100可以被配置为实现如实施例 1所述的信息交互方法。
在另一个实施方式中, 信息交互装置 1400可以与中央处理器 100分开配置, 例 如可以将信息交互装置 1400配置为与中央处理器 100连接的芯片, 通过中央处理器 的控制来实现信息交互装置 1400的功能。 如图 15所示, 该用户设备 1500还可以包括: 通信模块 110、 输入单元 120、 音 频处理单元 130、 显示器 160、 电源 170。 值得注意的是, 用户设备 1500也并不是必 须要包括图 15中所示的所有部件; 此外, 用户设备 1500还可以包括图 15中没有示 出的部件, 可以参考现有技术。
如图 15所示, 中央处理器 100有时也称为控制器或操作控件, 可以包括微处理 器或其他处理器装置和 /或逻辑装置,该中央处理器 100接收输入并控制用户设备 1500 的各个部件的操作。
其中, 存储器 140, 例如可以是缓存器、 闪存、 硬驱、 可移动介质、 易失性存储 器、非易失性存储器或其它合适装置中的一种或更多种。可储存上述与失败有关的信 息, 此外还可存储执行有关信息的程序。并且中央处理器 100可执行该存储器 140存 储的该程序, 以实现信息存储或处理等。其他部件的功能与现有类似,此处不再赘述。 用户设备 1500的各部件可以通过专用硬件、 固件、 软件或其结合来实现, 而不偏离 本发明的范围。
由上述实施例可知,通过用户设备获取第一基站发送的用于基站间交互的交互信 息, 并向第二基站上报所述交互信息; 可以在非理想回路的情况下, 实现更快的不同 基站之间的信息交互。 实施例 4
本发明实施例提供一种用于基站间交互的信息交互装置,对应于实施例 2中的信 息交互方法, 相同的内容不再赘述。
图 16是本发明实施例的信息交互装置的一构成示意图, 如图 16所示, 所述信息 交互装置 1600包括: 配置单元 1601 ; 该配置单元 1601对与包括第一基站和第二基 站的至少两个基站保持连接的用户设备进行配置;使得所述用户设备获取所述第一基 站发送的用于基站间交互的交互信息, 并向所述第二基站上报所述交互信息。
其中, 所述配置单元 1601可以对一个或多个所述用户设备进行配置, 使得所述 一个或多个用户设备上报所述交互信息。 所述配置单元 1601还可以用于对所述用户 设备上报所述交互信息的形式进行配置。
本发明实施例还提供一种基站, 该基站包括如上所述的信息交互装置 1600。 图 17是本发明实施例的基站的一构成示意图。 如图 17所示, 基站 1700可以包 括: 中央处理器 (CPU) 200和存储器 210; 存储器 210耦合到中央处理器 200。 其 中该存储器 210 可存储各种数据; 此外还存储信息处理的程序, 并且在中央处理器 200的控制下执行该程序, 以接收用户设备发送的各种信息、 并且向该用户设备发送 请求信息。
在一个实施方式中,信息交互装置 1600的功能可以被集成到中央处理器 200中。 其中, 中央处理器 200可以被配置为实现如实施例 2所述的信息交互方法。
在另一个实施方式中, 信息交互装置 1600可以与中央处理器分开配置, 例如可 以将信息交互装置 1600配置为与中央处理器 200连接的芯片, 通过中央处理器的控 制来实现信息交互装置 1600的功能。
此外, 如图 17所示, 基站 1700还可以包括: 收发机 220和天线 230等; 其中, 上述部件的功能与现有技术类似, 此处不再赘述。 值得注意的是, 基站 1700也并不 是必须要包括图 17中所示的所有部件; 此外, 基站 1700还可以包括图 17中没有示 出的部件, 可以参考现有技术。
由上述实施例可知,通过用户设备获取第一基站发送的用于基站间交互的交互信 息, 并向第二基站上报所述交互信息; 可以在非理想回路的情况下, 实现更快的不同 基站之间的信息交互。 实施例 5
本发明实施例提供一种通信系统, 与实施例 1至 4相同的内容不再赘述。
图 18是本发明实施例的通信系统的一构成示意图, 如图 18所示, 所述通信系统
1800包括:
第一基站 1801, 向用户设备 1803发送用于基站间交互的交互信息;
第二基站 1802, 接收用户设备 1803上报的所述交互信息;
用户设备 1803, 与所述第一基站 1801和所述第二基站 1802保持连接, 获取所 述第一基站 1801发送的所述交互信息并向所述第二基站 1802上报所述交互信息。
在本实施例中, 用户设备 1803可以包括实施例 3所述的信息交互装置 1400。 第 二基站 1802可以包括实施例 4所述的信息交互装置 1600, 但本发明不限于此, 例如 还可以由其他基站对用户设备 1803进行配置。
本发明实施例还提供一种计算机可读程序, 其中当在用户设备中执行所述程序 时, 所述程序使得计算机在所述用户设备中执行实施例 1所述的信息交互方法。 本发明实施例还提供一种存储有计算机可读程序的存储介质,其中所述计算机可 读程序使得计算机在用户设备中执行实施例 1所述的信息交互方法。
本发明实施例还提供一种计算机可读程序, 其中当在基站中执行所述程序时, 所 述程序使得计算机在所述基站中执行实施例 2所述的信息交互方法。
本发明实施例还提供一种存储有计算机可读程序的存储介质,其中所述计算机可 读程序使得计算机在基站中执行实施例 2所述的信息交互方法。
本发明以上的装置和方法可以由硬件实现, 也可以由硬件结合软件实现。本发明 涉及这样的计算机可读程序, 当该程序被逻辑部件所执行时, 能够使该逻辑部件实现 上文所述的装置或构成部件, 或使该逻辑部件实现上文所述的各种方法或步骤。本发 明还涉及用于存储以上程序的存储介质, 如硬盘、 磁盘、 光盘、 DVD、 flash存储器 等。 针对附图中描述的功能方框中的一个或多个和 /或功能方框的一个或多个组合, 可以实现为用于执行本申请所描述功能的通用处理器、 数字信号处理器 (DSP)、 专 用集成电路 (ASIC)、 现场可编程门阵列 (FPGA) 或者其它可编程逻辑器件、 分立 门或者晶体管逻辑器件、分立硬件组件或者其任意适当组合。针对附图描述的功能方 框中的一个或多个和 /或功能方框的一个或多个组合, 还可以实现为计算设备的组合, 例如, DSP和微处理器的组合、 多个微处理器、 与 DSP通信结合的一个或多个微处 理器或者任何其它这种配置。
以上结合具体的实施方式对本发明进行了描述, 但本领域技术人员应该清楚, 这 些描述都是示例性的, 并不是对本发明保护范围的限制。本领域技术人员可以根据本 发明的精神和原理对本发明做出各种变型和修改,这些变型和修改也在本发明的范围 内。 权利 要求书
1、 一种用于基站间交互的信息交互装置, 与包括第一基站和第二基站的至少两 个基站保持连接, 所述信息交互装置包括:
信息获取单元, 获取所述第一基站发送的用于基站间交互的交互信息; 信息上报单元, 向所述第二基站上报所述交互信息。
2、 根据权利要求 1 所述的信息交互装置, 其中, 所述信息上报单元通过 MAC 层信号来承载所述交互信息。
3、 根据权利要求 2所述的信息交互装置, 其中, 所述信息上报单元在所述信息 获取单元获得所述交互信息且经过最小处理时延之后, 将承载所述交互信息的 MAC 层控制元素包含在第一个 PUSCH中。
4、 根据权利要求 1所述的信息交互装置, 其中, 所述信息上报单元通过物理层 信号来承载所述交互信息。
5、 根据权利要求 4所述的信息交互装置, 其中, 使用 PUCCH格式来承载所述 交互信息; 以及
同一子帧中, 承载所述交互信息的 PUCCH 的优先级小于承载 ACK/NACK和 / 或调度请求的 PUCCH, 并且大于承载周期性 CSI的 PUCCH; 或者, 承载所述交互 信息的 PUCCH的优先级小于承载 ACK/NACK和 /或调度请求的 PUCCH, 并且小于 承载周期性 CSI的 PUCCH; 或者, 承载所述交互信息的 PUCCH的优先级小于承载 ACK/NACK和 /或调度请求、 以及周期性 CSI的 PUCCH; 或者, 根据所述交互信息 的类型确定承载所述交互信息的 PUCCH的优先级。
6、 根据权利要求 4所述的信息交互装置, 其中, 使用 PUCCH格式来承载所述 交互信息、 以及 ACK/NACK和 /或调度请求; 以及
同一子帧中, 承载所述交互信息、 以及 ACK/NACK和 /或调度请求的 PUCCH的 优先级大于承载周期性 CSI的 PUCCH。
7、 根据权利要求 6所述的信息交互装置, 其中, 在所述 PUCCH中的比特顺序 为 ACK/NACK, 调度请求和所述交互信息; 以及
在 ACK/NACK、 调度请求和所述交互信息的比特之和超过所述 PUCCH格式的 最大比特数时, 丢弃所述交互信息。

Claims

8、 根据权利要求 4所述的信息交互装置, 其中, 将所述交互信息加入 PUSCH 来承载所述交互信息。
9、 根据权利要求 8所述的信息交互装置, 其中, 所述交互信息被映射到一个或 两个时隙中; 以及所述交互信息被映射到尽量靠近参考信号的资源上。
10、 根据权利要求 8 所述的信息交互装置, 其中, 所述交互信息被映射在靠近
ACK/NACK的资源上; 或者, 所述交互信息被映射在靠近秩指示的资源上; 或者, 所述交互信息以先时域后频域的方式被映射在靠近 CQI/PMI的资源上。
11、 根据权利要求 4所述的信息交互装置, 其中, 使用上行参考信号来承载所述 交互信息。
12. 根据权利要求 11 所述的信息交互装置, 其中, 所述交互信息由不同序列的 上行参考信号来承载。
13、 根据权利要求 1所述的信息交互装置, 其中, 所述交互信息至少包括上下行 配置信息。
14、 根据权利要求 13所述的信息交互装置, 其中, 所述上下行配置信息包括所 述第一基站的多个小区的上下行配置信息;或者包括将所述多个小区的上下行配置信 息合并后的信息; 或者包括所述第一基站的部分小区的上下行配置信息。
15、 根据权利要求 13所述的信息交互装置, 其中, 所述交互信息还包括用户组 的信息。
16、 根据权利要求 1所述的信息交互装置, 其中, 所述信息上报单元在检测到所 述第一基站的信息发生变化的情况下或者在接收到基站的触发信令的情况下,向所述 第二基站上报所述交互信息。
17、 一种用于基站间交互的信息交互装置, 所述信息交互装置包括:
配置单元,对与包括第一基站和第二基站的至少两个基站保持连接的用户设备进 行配置,使得所述用户设备获取所述第一基站发送的用于基站间交互的交互信息并向 所述第二基站上报所述交互信息。
18、 根据权利要求 17所述的信息交互装置, 其中, 所述配置单元对一个或多个 所述用户设备进行配置, 使得所述一个或多个用户设备上报所述交互信息。
19、 根据权利要求 17所述的信息交互装置, 其中, 所述配置单元还用于对所述 用户设备上报所述交互信息的形式进行配置。 20、 一种通信系统, 所述通信系统包括:
第一基站, 向用户设备发送用于基站间交互的交互信息;
第二基站, 接收用户设备上报的所述交互信息;
用户设备, 与所述第一基站和所述第二基站保持连接, 获取所述第一基站发送的 所述交互信息并向所述第二基站上报所述交互信息。
PCT/CN2014/073825 2014-03-21 2014-03-21 用于基站间交互的信息交互装置、方法以及通信系统 WO2015139291A1 (zh)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101521909A (zh) * 2009-03-27 2009-09-02 上海无线通信研究中心 用于基站间通信中基于多个终端中继的信令转发方法
CN102238649A (zh) * 2010-04-30 2011-11-09 电信科学技术研究院 一种异构系统中上行控制信道干扰避免的方法和设备
CN103297981A (zh) * 2012-03-05 2013-09-11 华为技术有限公司 基站间干扰协调的方法和装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101521909A (zh) * 2009-03-27 2009-09-02 上海无线通信研究中心 用于基站间通信中基于多个终端中继的信令转发方法
CN102238649A (zh) * 2010-04-30 2011-11-09 电信科学技术研究院 一种异构系统中上行控制信道干扰避免的方法和设备
CN103297981A (zh) * 2012-03-05 2013-09-11 华为技术有限公司 基站间干扰协调的方法和装置

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