WO2014067067A1 - Procédé, appareil et système d'attribution de ressources - Google Patents

Procédé, appareil et système d'attribution de ressources Download PDF

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Publication number
WO2014067067A1
WO2014067067A1 PCT/CN2012/083760 CN2012083760W WO2014067067A1 WO 2014067067 A1 WO2014067067 A1 WO 2014067067A1 CN 2012083760 W CN2012083760 W CN 2012083760W WO 2014067067 A1 WO2014067067 A1 WO 2014067067A1
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WO
WIPO (PCT)
Prior art keywords
base station
subframe
restricted
rrs
pattern
Prior art date
Application number
PCT/CN2012/083760
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English (en)
Chinese (zh)
Inventor
张鹏
花梦
王宗杰
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 CN201280001465.8A priority Critical patent/CN103959873A/zh
Priority to PCT/CN2012/083760 priority patent/WO2014067067A1/fr
Publication of WO2014067067A1 publication Critical patent/WO2014067067A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery

Definitions

  • the present invention relates to the field of communications, and in particular, to a method, an apparatus, and a system for resource allocation. Background technique
  • Heterogeneous Network is generally composed of a macro cell and a cell, and has the advantages of large throughput and low cost.
  • the range of the micro cell is generally expanded by using a range expansion (RE), wherein the extended range of the micro cell is referred to as an RE area, and the RE area refers to
  • RE range expansion
  • the area of the "pilot signal to interference ratio of the parameter 1 micro cell/the pilot signal to interference ratio parameter 2 of the macro cell" is satisfied, wherein the parameter 1 and the parameter 2 are generally constant, and can be configured according to network requirements, and Parameter 1 Parameter 2;
  • the range of the RE area changes with the size of parameter 1, parameter 2.
  • the inventor has found that at least the following problems exist in the prior art: When the cell and the macro cell are in the same frequency, the cell in the RE area is strongly interfered by the macro cell, so that the micro cell base station and the micro cell The communication success rate of user equipment in the RE area is small.
  • the embodiments of the present invention provide a method, a device, and a system for resource allocation, which are used to reduce interference between cells, and improve communication success rate between a base station having an extended coverage requirement and a user equipment served by the user.
  • the embodiment of the present invention adopts the following technical solutions:
  • a method for resource allocation including:
  • RRS information includes a subframe type and a subframe loop of the restricted subframe a period, the subframe type corresponding to a set of base station constrained resources;
  • the RRS pattern of the first base station includes a restricted subframe of the first base station and a restricted subframe in the subframe cycle period. Subframe type information.
  • the RRS pattern of the first base station is obtained according to the restricted subframe of the first base station and the preset resource-restricted subframe RRS information according to the first possible implementation manner.
  • Obtaining an RRS pattern of the first base station according to the preset resource-restricted subframe RRS information which is specifically embodied as:
  • Determining a restricted subframe of the first base station in one subframe period selecting a subframe type of the restricted subframe of the first base station from the RRS information; according to the first base station And obtaining, by the restricted subframe, the subframe type of the restricted subframe of the first base station, and the subframe cycle period, an RRS pattern of the first base station.
  • the determining, according to the second possible implementation manner, the restricted subframe of the first base station in a period of one subframe is: obtaining the Channel quality parameters of the first base station;
  • a subframe equal to the number of restricted subframes of the first base station is randomly selected as a restricted subframe in one of the subframe cycle periods.
  • the selecting, according to the second possible implementation manner, the subframe type of the restricted subframe of the first base station from the RRS information is specifically: determining the a set of constrained resources of the first base station;
  • a subframe type corresponding to the set of constrained resources of the first base station is selected from the RRS information.
  • the acquiring the RRS pattern of the first base station according to the restricted subframe of the first base station and the preset resource-restricted subframe RRS information includes:
  • the sending the RRS pattern to the first base station includes:
  • the RRS pattern is transmitted to the first base station during each update period.
  • the method before the acquiring the RRS pattern of the first base station according to the restricted subframe of the first base station and the preset resource-restricted subframe RRS information, the method further includes:
  • Obtaining the RRS pattern of the first base station according to the restricted subframe of the first base station and the preset resource-restricted subframe RRS information including: according to the data bearer quantity of the first base station, the first base station
  • the restricted subframe and the preset resource-restricted subframe RR S information acquire an RRS pattern of the first base station.
  • the method in combination with the first aspect, and the first possible manner to the sixth possible implementation manner, after the sending the RRS pattern to the first base station, the method also includes:
  • a method for resource allocation including:
  • a resource-restricted subframe RRS pattern of the base station where the central network controller is configured to allocate resources to the base station, where the RRS pattern of the base station includes a subframe period Information about a restricted subframe of the base station and a subframe type of the restricted subframe, where the subframe type corresponds to a set of restricted resources of the base station;
  • the base station receives a resource-restricted subframe RRS pattern of the base station that is sent by a central network controller, and is specifically implemented in: in each update period, The base station receives an RRS pattern of the base station transmitted by the central network controller.
  • a method for providing resource allocation includes:
  • the second base station receives the resource-restricted subframe RRS pattern of the first base station that is sent by the central network controller, where the central network controller is configured to allocate resources to the second base station, where the RRS pattern of the first base station includes one Information of the restricted subframe of the first base station and the subframe type of the restricted subframe in a subframe period, the second base station and the first base station There is a downlink interference between them;
  • the base station receives a resource-restricted subframe RRS pattern of the first base station that is sent by the central network controller, and is specifically embodied as:
  • the base station receives an RRS pattern of the first base station sent by the central network controller during each update period.
  • the method further includes:
  • a central network controller including:
  • An acquiring unit configured to acquire an RRS pattern of the first base station according to the restricted subframe of the first base station and the preset resource-restricted subframe RRS information, where the RRS information includes a sub-frame of the restricted subframe a frame type and a subframe cycle period, the subframe type corresponding to a set of base station constrained resources;
  • a sending unit configured to send the RRS pattern to the first base station, to enable the first base station to restrict use of the restricted sub-frame in a restricted subframe of the first base station according to the RRS pattern A constrained resource in the set corresponding to the subframe type of the frame.
  • the RRS pattern of the first base station includes a restricted subframe of the first base station in the subframe cycle period and the restricted sub-frame The information of the subframe type of the frame.
  • the acquiring unit includes:
  • a determining module configured to determine a restricted subframe of the first base station in one subframe cycle period
  • a selecting module configured to select, according to the RRS information, a subframe type of the restricted subframe of the first base station
  • An acquiring module configured to acquire, according to the restricted subframe of the first base station, a subframe type of the restricted subframe of the first base station, and the subframe cycle period, an RRS diagram of the first base station Case.
  • the acquiring module is further configured to acquire a channel quality parameter of the first base station, where the determining module is further configured to: according to the first possible implementation manner, The channel quality parameter of the first base station determines the number of restricted subframes of the first base station in the one subframe period;
  • the selecting module is further configured to randomly select, as a restricted subframe, a subframe that is equal to the number of restricted subframes of the first base station in one subframe period.
  • the determining module is further configured to: determine a set of the limited resources of the first base station, where the determining module is further configured to: A subframe type corresponding to the set of the limited resources of the first base station is selected in the RRS information.
  • the acquiring unit is further configured to: acquire, according to the restricted subframe of the first base station and the preset resource-restricted subframe RRS information, the RRS pattern of the first base station in each update period;
  • the sending unit is further configured to send the RRS pattern to the first base station in each update period.
  • the acquiring unit is further configured to acquire a data carrying capacity of the first base station
  • the acquiring unit is further configured to acquire, according to the data bearer quantity of the first base station, the restricted subframe of the first base station, and the preset resource restricted subframe RRS information, the RRS of the first base station. pattern.
  • the central network controller further includes:
  • a storage unit configured to store the preset resource limited subframe RRS information.
  • the sending unit is further configured to send the RRS pattern of the first base station to the second base station, so that the second base station is within the restricted subframe of the first base station according to the RRS pattern,
  • the user equipment served by the second base station performs communication; wherein, there is downlink interference between the second base station and the first base station.
  • a central network controller including:
  • a processor configured to acquire an RRS pattern of the first base station according to the restricted subframe of the first base station and the preset resource-restricted subframe RRS information, where the RRS information includes a sub-frame of the restricted subframe a frame type and a subframe cycle period, the subframe type corresponding to a set of base station constrained resources;
  • a transmitter configured to send the RRS pattern to the first base station, to enable the first base station to restrict use of the restricted sub-frame within a restricted subframe of the first base station according to the RRS pattern a constrained resource in the set corresponding to the subframe type of the frame;
  • a memory configured to store the preset resource limited subframe RRS information.
  • the RRS pattern of the first base station includes a restricted subframe of the first base station in the subframe cycle period and the restricted sub-frame The information of the subframe type of the frame.
  • the processor is further configured to: determine a restricted subframe of the first base station in a period of the subframe, in a first possible implementation manner; Determining, in the RRS information, a subframe type of the restricted subframe of the first base station; according to the restricted subframe of the first base station, a subframe type of the restricted subframe of the first base station, and the child
  • the frame cycle period acquires an RRS pattern of the first base station.
  • the processor is further configured to: acquire a channel quality parameter of the first base station, and determine, according to a channel quality parameter of the first base station, according to the second possible implementation manner a number of restricted subframes of the first base station in one of the subframe cycle periods; randomly selecting the number of restricted subframes of the first base station in one of the subframe cycle periods
  • the subframe is a restricted subframe.
  • the processor is further configured to: determine a set of the limited resources of the first base station, and select a location from the RRS information according to the third possible implementation manner.
  • the subframe type corresponding to the set of constrained resources of the first base station.
  • the processor is further configured to: acquire, according to the restricted subframe of the first base station and the preset resource-restricted subframe RRS information, the RRS pattern of the first base station in each update period;
  • the transmitter is further configured to send the RRS pattern to the first base station in each update period.
  • the processor is further configured to: acquire a data bearer quantity of the first base station; according to a data bearer quantity of the first base station, a restricted subframe of the first base station, and the preset resource limiter
  • the frame RRS information acquires an RRS pattern of the first base station.
  • the transmitter is further configured to: send, to the second base station, the RRS pattern of the first base station, so that the second base station is in the RRS pattern according to the RRS pattern in the restricted subframe of the first base station And communicating with the user equipment served by the second base station in the restricted subframe of the first base station; where the second base station is a base station that has downlink interference with the first base station.
  • a base station including:
  • a receiving unit configured to receive an RRS pattern of the first base station sent by the central network controller, where the central network controller is configured to allocate resources to the base station, where the RRS pattern of the first base station includes a subframe period The information about the restricted subframe of the first base station and the subframe type of the restricted subframe, and downlink interference between the base station and the first base station;
  • a processing unit configured to communicate with the user equipment served by the base station in the restricted subframe of the first base station according to the RRS pattern.
  • the receiving unit is further configured to receive the RRS pattern sent by the central network controller during each update period.
  • a base station including:
  • a receiver configured to receive an RRS pattern of the first base station sent by the central network controller, where the central network controller is configured to allocate resources to the base station, where the RRS pattern of the first base station includes a subframe period The information of the restricted subframe of the first base station and the subframe type of the restricted subframe, the downlink interference exists between the base station and the first base station; and the processor is configured to use the RRS pattern according to the RRS pattern Communicating with the user equipment served by the base station within the restricted subframe of the first base station.
  • a base station including:
  • a receiving unit configured to receive an RRS pattern of the first base station sent by the central network controller, where the central network controller is configured to allocate resources to the base station, where the RRS pattern of the first base station includes a subframe period The information about the restricted subframe of the first base station and the subframe type of the restricted subframe, and downlink interference between the base station and the first base station;
  • a processing unit configured to communicate with the user equipment served by the base station in the restricted subframe of the first base station according to the RRS pattern.
  • the receiving unit is further configured to receive, according to each update period, the RRS pattern sent by the central network controller.
  • the base station further includes:
  • a sending unit configured to send the RRS pattern on a high-level signaling or a command of a high-speed shared channel HS-SCCH, and send the information to the user equipment served by the base station, so that the user equipment according to the RRS pattern and the The base station communicates.
  • a base station including:
  • a receiver configured to receive an RRS pattern of the first base station sent by the central network controller, where the central network controller is configured to allocate resources to the base station, where the RRS pattern of the first base station includes a subframe period The information of the restricted subframe of the first base station and the subframe type of the restricted subframe, the downlink interference exists between the base station and the first base station; and the processor is configured to use the RRS pattern according to the RRS pattern Communicating with the user equipment served by the base station within the restricted subframe of the first base station.
  • the receiver is further configured to receive the RRS pattern sent by the central network controller during each update period.
  • the base station further includes:
  • a transmitter configured to send the RRS pattern on a high-level signaling or a command of a high-speed shared channel HS-SCCH, and send the information to the user equipment served by the base station, so that the user equipment according to the RRS pattern and the The base station communicates.
  • a tenth aspect provides a system for resource allocation, including: a first base station, a second base station The central network controller according to any one of the preceding claims, wherein the first base station is the base station according to any one of the sixth aspect or the seventh aspect, wherein the second base station is the eighth aspect or the ninth The base station according to any one of the preceding claims, wherein the first base station and the second base station have downlink interference.
  • the method, device and system for resource allocation provided by the embodiment of the present invention, by transmitting the RRS pattern of the first base station to the first base station, so that the first base station is restricted in the restricted subframe of the first base station according to the RRS pattern, Using the constrained resources in the set corresponding to the subframe type of the restricted subframe, the interference between the cells is reduced in the restricted subframe of the first base station, and the base station with the extended coverage requirement is improved and served by the base station.
  • the communication success rate between the user equipments solves the problem of low communication rate between the base station with the extended coverage requirement and the user equipment served by the user due to interference between the cells in the prior art.
  • FIG. 1 is a method for resource allocation according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of another resource allocation method according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a central network controller according to an embodiment of the present invention.
  • FIG. 6 is another central network controller according to an embodiment of the present invention.
  • FIG. 7 is another central network controller according to an embodiment of the present invention.
  • FIG. 8 is a base station according to an embodiment of the present invention.
  • FIG. 9 is another base station according to an embodiment of the present invention.
  • FIG. 10 is another base station according to an embodiment of the present invention.
  • FIG. 1 is another base station according to an embodiment of the present invention.
  • FIG. 12 is another base station according to an embodiment of the present invention.
  • FIG. 13 is another base station according to an embodiment of the present invention.
  • FIG. 14 is a system for resource allocation according to an embodiment of the present invention. detailed description
  • HomoNet HomoNet
  • HetNet Heterogeneous Network
  • C-RAN Cloud-Radio Access Network
  • Each of the above network structures includes a central network controller and a plurality of base stations in communication with the central network controller.
  • the central network controller may be a Radio Network Controller (RNC).
  • RNC Radio Network Controller
  • an embodiment of the present invention provides a method for resource allocation, as shown in FIG. 1 , including:
  • RRS Resource Restricted Subframe
  • the first base station provided by the embodiment of the present invention refers to a base station that can narrow the coverage
  • the second base station refers to a base station that has a requirement for expanding coverage, and downlink interference exists between the first base station and the second base station.
  • the first base station and the second base station may be predetermined in the central network controller.
  • the first base station refers to a macro base station
  • the second base station refers to a micro base station.
  • the constrained resources may include: a channelization code that can be used, a type of modulation that can be used, a power that can be used, a physical layer channel that can be used, and the like, wherein some or all of the functions of each of the constrained resources can be restricted.
  • the sub-frame type can be represented by various forms such as letters, numbers, special characters, and the like.
  • the embodiment is represented by a digital form.
  • the subframe cycle period can be set according to the performance of the network, the protocol used by the base station, and the like.
  • the set of the base station configurable resources may include: an empty set, a set of one or several finite resources; the constrained resource of the first base station refers to a resource that can be restricted in the first base station, including In a set of base station constrained resources.
  • the correspondence between the subframe type and the set of base station constrained resources may include: "one-to-many", “many-to-one", one-to-one”, etc. Alternatively, this embodiment adopts a "one-to-one" form. For description, refer to Table 1, which is a correspondence between a subframe type and a base station restricted resource set.
  • the RRS pattern of the first base station includes information about a restricted subframe of the first base station and a subframe type of the restricted subframe in the subframe cycle period.
  • the acquiring the RRS pattern of the first base station according to the restricted subframe of the first base station and the preset resource-restricted subframe RRS information may include: determining, within one of the one subframe period a restricted subframe of the first base station; selecting a subframe type of the restricted subframe of the first base station from the RRS information; according to the restricted subframe of the first base station, the first base station The subframe type of the restricted subframe and the subframe cycle period acquire the RRS pattern of the first base station.
  • the determining a restricted subframe of the first base station in the one subframe cycle period may include: randomly selecting a limited one of the first base stations in the one subframe period Subframe.
  • the method may further include: acquiring a channel quality parameter of the first base station; determining, according to a channel quality parameter of the first base station, a number of restricted subframes of the first base station in the one subframe period; A subframe equal to the number of restricted subframes of the first base station is randomly selected in one subframe period as a restricted subframe.
  • the selecting a subframe type of the restricted subframe of the first base station from the RRS information may include: randomly selecting a subframe type of the restricted subframe of the first base station.
  • the method may also include: determining a set of constrained resources of the first base station; selecting, from the RRS information, a subframe type corresponding to the set of constrained resources of the first base station.
  • the determining the set of the constrained resources of the first base station may include determining, by using a randomly selected manner, a set of constrained resources of the first base station.
  • the RRS pattern can be represented in the form of a vector, a table, a graphic, or the like.
  • the embodiment of the present invention is represented by a vector. For example, suppose the subframe loop period is 8 The subframe type of the unrestricted subframe is type 0, and the obtained restricted subframe of the first base station is the first three subframes, and the determined subframe types of the first three subframes are all type 1, then, The RRS pattern of the first base station can be expressed as: 1 1 100000.
  • the method may further include:
  • the transmitting the RRS pattern to the first base station includes: transmitting the RRS pattern to the first base station in each update period.
  • the method may further include: acquiring a data carrying capacity of the first base station;
  • the step 101 may include: acquiring an RRS pattern of the first base station according to the data bearer quantity of the first base station, the restricted subframe of the first base station, and the preset resource restricted subframe RR S information.
  • the central network controller may preset the critical data bearer of the first base station, and when the acquired data bearer of the first base station is greater than the critical data bearer, the central network controller sends the RRS to the first base station. a pattern; when the data carrying capacity of the obtained first base station is less than the critical capacity, the central network controller does not send the RRS pattern, wherein the critical data carrying value can be pre-stored in the central network controller according to an empirical value. .
  • the method for acquiring the data bearer of the first base station may include: acquiring the number of user equipments served by the first base station.
  • the method may further include: transmitting the RRS pattern of the first base station to the second base station, so that the second base station is in the restricted subframe of the first base station according to the The RRS pattern is in communication with the user equipment served by the second base station; wherein there is downlink interference between the second base station and the first base station.
  • the method for resource allocation by transmitting the RRS pattern of the first base station to the first base station, so that the first base station limits the use of the restricted subframe in the restricted subframe of the first base station according to the RRS pattern.
  • the restricted resources in the set corresponding to the subframe type, at the first The restricted subframes of the base station reduce the interference between the cells, improve the communication success rate between the base station with the extended coverage requirement and the user equipments served by the base station, and solve the interference between the cells in the prior art. The resulting problem of low communication rate between the base station with extended coverage requirements and the user equipment it serves.
  • the embodiment of the present invention provides a method for resource allocation.
  • the method includes: 201: a first base station receives a resource-restricted subframe RRS pattern of the first base station that is sent by a central network controller, where The central network controller is configured to allocate resources to the base station, where the RRS pattern of the base station includes information about a restricted subframe of the base station and a subframe type of the restricted subframe in a subframe cycle period, The subframe type corresponds to a set of restricted resources of the base station.
  • the first base station refers to a macro base station.
  • the receiving, by the first base station, the RRS pattern of the base station sent by the central network controller may include: receiving, in each update period, the base station sent by the central network controller RRS pattern.
  • Limit in the restricted subframe of the base station, a constrained resource in a set corresponding to a subframe type of the restricted subframe according to the RRS pattern.
  • the base station receives the RRS pattern of the base station sent by the central network controller, and limits the subframe using the restricted subframe according to the RRS pattern in the restricted subframe of the base station.
  • the constrained resources in the set corresponding to the type reduce the interference between the cells in the restricted subframe of the first base station, and improve the communication success between the base station with the extended coverage requirement and the user equipment served by the user equipment.
  • the rate solves the problem that the communication rate between the base station with the extended coverage requirement and the user equipment served by the base station due to interference between cells in the prior art is low.
  • an embodiment of the present invention provides a method for resource allocation, as shown in FIG. 3, including:
  • the second base station receives an RRS pattern of the first base station (interfering base station) sent by the central network controller, where the central network controller is configured to allocate resources to the base station, and the resource limited subframe RRS of the interfering base station
  • the pattern includes information of a restricted subframe of the first base station of the interfering base station and a subframe type of the restricted subframe within one subframe cycle period.
  • the first base station refers to a macro base station
  • the second base station refers to a micro base station.
  • the receiving, by the second base station, the resource-restricted subframe RRS pattern of the first base station sent by the central network controller may include: in each update period, the second base station is connected And receiving a resource limited subframe RRS pattern of the first base station sent by the central network controller.
  • the method may further include: transmitting the RRS pattern on the high layer signaling or the command of the high speed shared channel HS-SCCH, and sending the information to the user equipment served by the second base station, to The user equipment is caused to communicate with the second base station according to the RRS pattern.
  • the method for resource allocation provided by the embodiment of the present invention, the second base station, by receiving the RRS pattern of the first base station, and communicating with the user equipment served by the second base station in the restricted subframe of the first base station according to the RRS pattern
  • the interference between the cells is reduced in the restricted subframe of the first base station, and the communication success rate between the base station with the extended coverage requirement and the user equipment served by the user is improved, and the existing cell in the prior art is solved.
  • the problem of interference between the base stations having extended coverage requirements and the user equipment they serve is low due to interference between them.
  • the method for resource allocation in this embodiment includes:
  • the central network controller acquires a channel quality parameter of the first base station.
  • a central network controller is used to allocate resources to a base station.
  • the channel quality parameter of the base station is any one or several parameters that can determine the channel quality of the base station, for example, the signal to noise ratio of the downlink pilot signal of the first base station. The better the channel quality of the base station, the more the number of restricted subframes of the base station in one subframe cycle.
  • the central network controller determines, according to a channel quality parameter of the first base station, a number of restricted subframes of the first base station in one subframe cycle period;
  • the better the channel quality of the base station the more the number of restricted subframes of the base station in one subframe cycle period.
  • the central network controller selects, from the RRS information, a subframe type corresponding to the set of the limited resources of the first base station;
  • the selected one corresponding to the set of constrained resources of the first base station is selected.
  • the subframe type is type 1.
  • the central network controller is configured according to the restricted subframe of the first base station and the restricted base of the first base station.
  • the subframe type of the frame and the subframe cycle period acquire the RRS pattern of the first base station; for example, the restricted subframe of the first base station determined in step 402 is the first, second, and fourth subframes, which are obtained in step 404.
  • the subframe types of the first, second, and fourth subframes are type 1, type 1, and type 2, respectively, and the subframe period of the first base station is 8 subframes, and type 0 indicates that the base station limited resource set is empty.
  • the set ie, the resource is not limited
  • the RRS pattern is represented by a vector
  • the obtained RRS pattern of the first base station can be expressed as: 11020000.
  • the central network controller sends the RRS pattern of the first base station to the first base station.
  • the first base station limits, in the restricted subframe of the first base station, the limited resources in the set corresponding to the subframe type of the restricted subframe according to the RRS pattern;
  • the central network controller sends the RRS pattern to the second base station, where there is downlink interference between the second base station and the first base station;
  • the second base station may include one or more base stations that have downlink interference with the first base station. Since the interference between the first base station and the second base station is small in the restricted subframe of the first base station, the central network controller may send the RRS pattern of the first base station to the second base station, so that the second The base station learns the restricted subframe of the first base station.
  • the second base station carries the RRS pattern on the high layer signaling or the command of the high speed shared channel HS-SCCH, and sends the RRS pattern to the user equipment served by the second base station;
  • the step may enable the user equipment served by the second base station to learn the restricted subframe of the first base station.
  • the second base station communicates with the user equipment served by the second base station in the restricted subframe of the first base station according to the RRS pattern.
  • the first base station refers to a macro base station
  • the second base station refers to a micro base station.
  • the second base station may schedule large block length data or send control signaling to the user equipment served by the second base station in the restricted subframe of the first base station.
  • the quality of the control channel of the second base station Before the user equipment served by the second base station communicates with the second base station, it is generally required to determine the quality of the control channel of the second base station. In this case, it may be determined by detecting only the control channel quality of the second base station in the restricted subframe of the first base station.
  • the method to detect the control channel quality of the second base station can improve the user equipment served by the second base station and the second Communication with the base station; or, in conjunction with Table 1, when the RRS pattern of the first base station received by the user equipment served by the second base station is 22200000, the interference cancellation can be performed in the first three subframes according to the RRS pattern (Interference Cancellation, referred to as IC ) to further reduce interference from the first base station.
  • IC Interference Cancellation
  • the method for resource allocation by transmitting the RRS pattern of the first base station to the first base station, so that the first base station limits the use of the restricted subframe in the restricted subframe of the first base station according to the RRS pattern.
  • the constrained resources in the set corresponding to the subframe type reduce the interference between the cells in the restricted subframe of the first base station, and improve the base station with the extended coverage requirement and the user equipment served thereby
  • the communication success rate solves the problem of low communication rate between the base station with extended coverage requirements and the user equipment served by the UE due to interference between cells in the prior art.
  • an embodiment of the present invention provides a central network controller 50 for performing a method for resource allocation in the foregoing embodiments.
  • the central network controller 50 includes:
  • the acquiring unit 501 is configured to acquire, according to the restricted subframe of the first base station and the preset resource-restricted subframe RRS information, the RRS pattern of the first base station, where the RRS information includes the restricted subframe a subframe type and a subframe cycle period, the subframe type corresponding to a set of base station constrained resources;
  • the sending unit 502 is configured to send the RRS pattern to the first base station, so that the first base station limits the use of the restricted in the restricted subframe of the first base station according to the RRS pattern.
  • the RRS pattern of the first base station includes information about a restricted subframe of the first base station and a subframe type of the restricted subframe in the subframe cycle period.
  • the obtaining unit 501 may include:
  • a determining module 501 1 configured to determine a restricted subframe of the first base station in one subframe period
  • the selecting module 5012 is configured to select, from the RRS information, a subframe type of the restricted subframe of the first base station;
  • the obtaining module 5013 is configured to acquire an RR S pattern of the first base station according to the restricted subframe of the first base station, the subframe type of the restricted subframe of the first base station, and the subframe cycle period.
  • the obtaining module 5013 may be further configured to obtain a channel quality parameter of the first base station.
  • the determining module 501 1 block may be further configured to determine, according to a channel quality parameter of the first base station, a number of restricted subframes of the first base station in one subframe period.
  • the selecting module 5012 is further configured to randomly select, as a restricted subframe, a subframe that is equal to the number of restricted subframes of the first base station in one subframe period.
  • the determining module 5011 is further configured to determine a set of the limited resources of the first base station.
  • the selecting module 5012 is further configured to select, from the RRS information, a subframe type corresponding to the set of the limited resources of the first base station.
  • the acquiring unit 501 is further configured to: acquire, according to the restricted subframe of the first base station and the preset resource-restricted subframe RRS information, the RRS pattern of the first base station in each update period;
  • the sending unit 502 is further configured to send the RRS pattern to the first base station in each update period.
  • the acquiring unit 501 is further configured to: acquire the data bearer quantity of the first base station, where the acquiring unit 501 is further configured to: according to the data bearer quantity of the first base station, the first The restricted subframe of the base station and the preset resource-restricted subframe RRS information acquire an RRS pattern of the first base station.
  • central network controller 50 may further include:
  • the storage unit 503 is configured to store the preset resource-restricted subframe RRS information.
  • the sending unit 502 is further configured to send the RRS pattern of the first base station to the second base station, so that the second base station is restricted in the first base station according to the RRS pattern. Communicating with the user equipment served by the second base station in the subframe; wherein there is downlink interference between the second base station and the first base station.
  • the first base station refers to a macro base station
  • the second base station refers to a micro base station.
  • the central network controller provided by the embodiment of the present invention, by transmitting the RRS pattern of the first base station to the first base station, causes the first base station to restrict the use of the restricted subframe according to the RRS pattern in the restricted subframe of the first base station.
  • the constrained resources in the set corresponding to the subframe type reduce the interference between the cells in the restricted subframe of the first base station, and improve the base station with the extended coverage requirement and the user equipment served thereby
  • the communication success rate solves the problem of low communication rate between the base station with extended coverage requirements and the user equipment served by the UE due to interference between cells in the prior art.
  • an embodiment of the present invention provides a central network controller 50 for performing a method for resource allocation in the foregoing embodiments.
  • the central network controller 50 includes: a processor 701, configured to acquire, according to the restricted subframe of the first base station and the preset resource-restricted subframe RRS information, an RRS pattern of the first base station;
  • the RRS information includes a subframe type and a subframe cycle period of the restricted subframe, and the subframe type and the base station may be limited resources.
  • the set corresponding to the set;
  • the RRS pattern of the first base station includes information about a restricted subframe of the first base station and a subframe type of the restricted subframe in the subframe cycle period.
  • the processor 701 may be specifically configured to: determine a restricted subframe of the first base station in a cycle of the subframe; and select a restricted of the first base station from the RRS information.
  • the subframe type of the subframe is obtained by acquiring the RRS pattern of the first base station according to the restricted subframe of the first base station, the subframe type of the restricted subframe of the first base station, and the subframe cycle period.
  • the processor 701 is further configured to: obtain a channel quality parameter of the first base station; and determine, according to a channel quality parameter of the first base station, the first in one of the subframe cycle periods. a number of restricted subframes of the base station; a subframe equal to the number of restricted subframes of the first base station is randomly selected as a restricted subframe in one of the subframe cycle periods.
  • the processor 701 is further configured to: determine, by the first base station, a set of constrained resources; and select, from the RRS information, a set of constrained resources of the first base station Corresponding subframe type;
  • the transmitter 702 is configured to send the RRS pattern to the first base station, so that the first base station limits the use of the restricted in the restricted subframe of the first base station according to the RRS pattern.
  • the memory 703 is configured to store the preset resource limited subframe RRS information.
  • the processor 701 is further configured to: acquire, according to the restricted subframe of the first base station and the preset resource-restricted subframe RRS information, the RRS pattern of the first base station in each update period;
  • the transmitter 702 is further configured to send the RRS pattern to the first base station in each update period.
  • the processor 701 is further configured to: acquire a data bearer quantity of the first base station; according to a data bearer quantity of the first base station, a restricted subframe of the first base station, and the preset
  • the resource-restricted subframe RRS information is set to acquire an RRS pattern of the first base station.
  • the transmitter 702 is further configured to send the RRS pattern of the first base station to the second base station, so that the second base station is configured according to the second base station in the restricted subframe of the first base station.
  • the RRS pattern is in communication with the user equipment served by the second base station in the restricted subframe of the first base station; wherein the second base station refers to the existence between the first base station and the first base station Base station for downlink interference.
  • the first base station refers to a macro base station
  • the second base station refers to a micro base station.
  • the central network controller provided by the embodiment of the present invention, by transmitting the RRS pattern of the first base station to the first base station, causes the first base station to restrict the use of the restricted subframe according to the RRS pattern in the restricted subframe of the first base station.
  • the constrained resources in the set corresponding to the subframe type reduce the interference between the cells in the restricted subframe of the first base station, and improve the base station with the extended coverage requirement and the user equipment served thereby
  • the communication success rate solves the problem of low communication rate between the base station with extended coverage requirements and the user equipment served by the UE due to interference between cells in the prior art.
  • an embodiment of the present invention provides a base station 80 for performing a method for resource allocation in the foregoing embodiments.
  • the base station 80 includes:
  • the receiving unit 801 is configured to receive a resource limited subframe RRS pattern of the base station 80 sent by the central network controller, where the central network controller is configured to allocate resources to the base station 80, and the RRS of the base station 80
  • the pattern includes information of a restricted subframe of the base station 80 and a subframe type of the restricted subframe within a subframe cyclic period, the subframe type corresponding to a set of restricted resources of the base station 80 ;
  • the processing unit 802 is configured to limit, in the restricted subframe of the base station 80, the limited resources in the set corresponding to the subframe type of the restricted subframe according to the RRS pattern.
  • the receiving unit 801 is further configured to receive, according to each update period, the RRS pattern sent by the central network controller.
  • the base station 80 refers to a macro base station.
  • the base station provided by the embodiment of the present invention limits the limited resources in the set corresponding to the subframe type of the restricted subframe by receiving the RRS pattern of the base station and according to the RRS pattern in the restricted subframe of the base station.
  • the interference between the cells is reduced in the restricted subframe of the base station, and the communication success rate between the base station with the extended coverage requirement and the user equipment served by the user is improved, which solves the problem in the prior art between the cells.
  • the interference caused by the interference between the base station with the extended coverage requirement and the user equipment it serves is low.
  • an embodiment of the present invention provides a base station 80 for performing a method for resource allocation in the foregoing embodiments.
  • the base station 80 includes:
  • a receiver 901 configured to receive a resource-restricted subframe RRS pattern of the base station 80 sent by a central network controller, where the central network controller is configured to allocate resources to the base station 80, and the RRS of the base station 80
  • the pattern includes the base station 80 within one subframe cycle period Information of the restricted subframe and the subframe type of the restricted subframe, the subframe type corresponding to the set of restricted resources of the base station 80;
  • the processor 902 is configured to limit, in the restricted subframe of the base station 80, the limited resources in the set corresponding to the subframe type of the restricted subframe according to the RRS pattern.
  • the receiver 901 is further configured to receive, by using the central network controller, the RRS pattern in each update period.
  • the base station 80 refers to a macro base station.
  • the base station provided by the embodiment of the present invention limits the limited resources in the set corresponding to the subframe type of the restricted subframe by receiving the RRS pattern of the base station and according to the RRS pattern in the restricted subframe of the base station.
  • the interference between the cells is reduced in the restricted subframe of the base station, and the communication success rate between the base station with the extended coverage requirement and the user equipment served by the user is improved, which solves the problem in the prior art between the cells.
  • the interference caused by the interference between the base station with the extended coverage requirement and the user equipment it serves is low.
  • an embodiment of the present invention provides a base station 100, which is configured to perform resource allocation in the foregoing embodiments.
  • the base station 100 includes:
  • the receiving unit 1001 is configured to receive an RRS pattern of the first base station sent by the central network controller, where the central network controller is configured to allocate resources to the base station 100, where the RRS pattern of the first base station includes one subframe loop a downlink subframe of the first base station and a subframe type of the restricted subframe, and downlink interference between the base station and the first base station;
  • the processing unit 1002 is configured to communicate with the user equipment served by the base station 100 in the restricted subframe of the first base station according to the RRS pattern of the first base station.
  • the receiving unit 1001 is further configured to: receive, in each update period, the RRS pattern sent by the central network controller.
  • the base station 100 may further include:
  • the sending unit 1003 is configured to carry the RRS pattern on the high layer signaling or the command of the high speed shared channel HS-SCCH, and send the information to the user equipment served by the base station 100, so that the user equipment is according to the RRS pattern. Communicating with the base station 100.
  • the base station 100 refers to a micro base station.
  • the base station provided by the embodiment of the present invention receives the RRS pattern of the first base station and communicates with the user equipment served by the base station in the restricted subframe of the first base station according to the RRS pattern, where the first base station is restricted.
  • the interference between cells is reduced within the subframe, and the expansion is improved.
  • the communication success rate between the base station and the user equipment it serves is covered by the coverage area, and the communication rate between the base station and the user equipment served by the base station with the extended coverage requirement caused by the interference between the cells in the prior art is solved. Low problem.
  • an embodiment of the present invention provides a base station 100, which is configured to perform resource allocation in the foregoing embodiments.
  • the base station 100 includes:
  • the receiver 1201 is configured to receive an RRS pattern of the first base station sent by the central network controller, where the central network controller is configured to allocate resources to the base station, where the RRS pattern of the first base station includes one subframe cycle period.
  • the processor 1202 is configured to communicate with the user equipment served by the base station 100 in the restricted subframe of the first base station according to the RRS pattern.
  • the receiver 1201 is further configured to receive, according to each update period, the RRS pattern sent by the central network controller.
  • the base station 100 may further include:
  • the transmitter 1203 is configured to carry the RRS pattern on the high layer signaling or the command of the high speed shared channel HS-SCCH, and send the RRS pattern to the user equipment served by the base station 100, so that the user equipment is according to the RRS pattern. Communicating with the base station 100.
  • the base station 100 refers to a micro base station.
  • the base station provided by the embodiment of the present invention receives the RRS pattern of the first base station and communicates with the user equipment served by the base station in the restricted subframe of the first base station according to the RRS pattern, where the first base station is restricted.
  • the interference between the cells is reduced in the subframe, and the communication success rate between the base station with the extended coverage requirement and the user equipment served by the user is improved, and the expansion in the prior art due to the interference between the cells is solved.
  • the embodiment of the present invention provides a system for resource allocation.
  • the method includes: a first base station 30, a second base station 40, and a central network controller 50 according to any one of the foregoing, wherein the first The base station 30 includes the base station 80 according to any of the foregoing embodiments, and the second base station 40 includes the base station 100 according to any of the foregoing embodiments, and the first base station 30 and the second base station 40 exist. Downstream interference.
  • the first base station 30 is a macro base station
  • the second base station 40 is a micro base station.
  • the central network controller sends the RRS pattern of the first base station to the first base station, so that the first base station limits the use according to the RRS pattern in the restricted subframe of the first base station.
  • the constrained resources in the set corresponding to the subframe type of the restricted subframe reduce the interference between the cells in the restricted subframe of the first base station, and improve the base station with the extended coverage requirement and the served by the base station
  • the communication success rate between the user equipments increases the throughput of the resource allocation system, and solves the communication rate between the base station and the user equipment served by the base station with the extended coverage requirement caused by the interference between the cells in the prior art. Low problem.

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

Abstract

Des modes de réalisation de la présente invention se rapportent au domaine des communications. La présente invention concerne donc un procédé, un appareil et un système d'attribution de ressources permettant de réduire les interférences entre des cellules et d'améliorer un taux de réussite de communication entre une station de base affichant une exigence d'augmentation de portée et un équipement d'utilisateur que la station de base dessert. Le procédé des modes de réalisation de la présente invention fait appel : conformément à une sous-trame restreinte d'une première station de base et à des informations de sous-trame restreinte de ressources (RRS) prédéfinies, à l'obtention d'un motif RRS de la première station de base, les informations RRS comprenant un type de sous-trame de la sous-trame restreinte et une période de cycle de sous-trame, et le type de sous-trame correspondant à un ensemble de ressources pouvant faire l'objet d'une restriction de station de base ; à l'envoi du motif RRS à la première station de base de sorte que la première station de base restreint l'utilisation des ressources pouvant faire l'objet d'une restriction dans l'ensemble correspondant au type de sous-trame de la sous-trame restreinte, conformément au motif RRS, et à l'intérieur de la sous-trame restreinte de la première station de base.
PCT/CN2012/083760 2012-10-30 2012-10-30 Procédé, appareil et système d'attribution de ressources WO2014067067A1 (fr)

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CN201280001465.8A CN103959873A (zh) 2012-10-30 2012-10-30 一种资源分配的方法、装置及系统
PCT/CN2012/083760 WO2014067067A1 (fr) 2012-10-30 2012-10-30 Procédé, appareil et système d'attribution de ressources

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CN102065490A (zh) * 2011-01-17 2011-05-18 大唐移动通信设备有限公司 基站间下行发射功率的协调方法和设备
CN102340344A (zh) * 2010-07-27 2012-02-01 电信科学技术研究院 一种异构网络中基站间的干扰避免方法及设备
CN102404833A (zh) * 2010-09-17 2012-04-04 电信科学技术研究院 一种异构系统中干扰避免的方法和设备
WO2012061030A1 (fr) * 2010-11-01 2012-05-10 Qualcomm Incorporated Limitation de ressources dans un réseau sans fil
WO2012115429A2 (fr) * 2011-02-21 2012-08-30 Samsung Electronics Co., Ltd. Procédé et dispositif pour mesurer un signal dans un système de communication sans fil

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Publication number Priority date Publication date Assignee Title
CN102340344A (zh) * 2010-07-27 2012-02-01 电信科学技术研究院 一种异构网络中基站间的干扰避免方法及设备
CN102404833A (zh) * 2010-09-17 2012-04-04 电信科学技术研究院 一种异构系统中干扰避免的方法和设备
WO2012061030A1 (fr) * 2010-11-01 2012-05-10 Qualcomm Incorporated Limitation de ressources dans un réseau sans fil
CN102065490A (zh) * 2011-01-17 2011-05-18 大唐移动通信设备有限公司 基站间下行发射功率的协调方法和设备
WO2012115429A2 (fr) * 2011-02-21 2012-08-30 Samsung Electronics Co., Ltd. Procédé et dispositif pour mesurer un signal dans un système de communication sans fil

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