WO2013181958A1 - Procédé et dispositif d'attribution de ressources - Google Patents

Procédé et dispositif d'attribution de ressources Download PDF

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Publication number
WO2013181958A1
WO2013181958A1 PCT/CN2013/072667 CN2013072667W WO2013181958A1 WO 2013181958 A1 WO2013181958 A1 WO 2013181958A1 CN 2013072667 W CN2013072667 W CN 2013072667W WO 2013181958 A1 WO2013181958 A1 WO 2013181958A1
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Prior art keywords
prach resource
cell
prach
resource
occupied
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PCT/CN2013/072667
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English (en)
Chinese (zh)
Inventor
黄建中
张玉卫
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华为技术有限公司
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Filing date
Publication date
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Publication of WO2013181958A1 publication Critical patent/WO2013181958A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames

Definitions

  • the present invention relates to the field of communications, and in particular to a resource allocation method and apparatus. Background technique
  • a terminal In a wireless communication system, a terminal needs to establish a connection with a network, a process commonly referred to as a random access procedure. In the random access process, the terminal needs to use the physical random access channel (PRACH) resource of the cell to access the network.
  • PRACH physical random access channel
  • the embodiments of the present invention provide a resource allocation method and device, which can improve random access performance and access success rate.
  • a resource allocation method including: determining information of a second physical random access channel PRACH resource of at least one second cell adjacent to a first cell; according to information of the second PRACH resource, to the A cell allocates a first PRACH resource, wherein the first PRACH resource and the second PRACH resource are staggered in time domain and/or frequency domain.
  • a resource allocation apparatus including: a determining unit, configured to determine information of a second PRACH resource of at least one second cell adjacent to the first cell; and an allocating unit, configured to use, according to the second PRACH resource And the first PRACH resource is allocated to the first cell, where the first PRACH resource and the second PRACH resource are staggered in the time domain and/or the frequency domain.
  • the second PRACH resource is allocated to the first PRACH resource and the second PRACH resource of the second neighboring cell is offset in the time domain and/or the frequency domain, so that the second PRACH resource can be reduced to the first PRACH.
  • the co-channel interference of resources and the false alarm probability caused by co-channel interference can improve random access performance and access success rate.
  • FIG. 1 is a schematic diagram of a scenario in which an embodiment of the present invention may be applied.
  • FIG. 2 is a schematic flowchart of a resource allocation method according to an embodiment of the present invention.
  • 3 is a schematic diagram of PRACH resource allocation in accordance with one embodiment of the present invention.
  • FIG. 4 is a schematic diagram of PRACH resource allocation according to another embodiment of the present invention.
  • FIG. 5 is a schematic diagram of PRACH resource allocation according to another embodiment of the present invention.
  • FIG. 6a through 6c are schematic diagrams of PRACH resource allocation according to another embodiment of the present invention.
  • FIG. 7 is a schematic diagram of PRACH resource allocation according to another embodiment of the present invention.
  • FIG. 8 is a schematic block diagram of a resource allocation device according to an embodiment of the present invention. detailed description
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access Wireless
  • GPRS General Packet Radio
  • LTE Long Term Evolution
  • FIG. 1 is a schematic diagram of a scenario in which an embodiment of the present invention may be applied. It should be noted that the example of FIG. 1 is intended to assist those skilled in the art to better understand the embodiments of the present invention and not to limit the scope of the embodiments of the present invention. For example, although one first cell and two second cells are depicted in FIG. 1, the number of second cells adjacent to the first cell in the embodiment of the present invention may also be one, three or more.
  • a first cell 110 is adjacent to a second cell 120a and a second cell 120b.
  • the first cell 110 may be a cell to be established (which may be referred to as a newly created cell in the embodiment of the present invention), or may be an already established cell.
  • the second cell 120a and the second cell 120b may be already established cells. If the first cell 110 is a newly created cell, the resource allocation device may allocate the PRACH resource to the first cell 110, and if the first cell 110 is an already established cell, the resource allocation device may re-allocate the PRACH resource to the first cell 110.
  • the resource allocation device may shift the PRACH resource of the first cell 110 and the PRACH resource of the second cell 120a and the PRACH resource of the second cell 120b to avoid the PRACH resource of the second cell 120a and the PRACH resource pair of the second cell 120b.
  • the interference generated by the PRACH resources of the cell 110 may shift the PRACH resource of the first cell 110 and the PRACH resource of the second cell 120a and the PRACH resource of the second cell 120b to avoid the PRACH resource of the second cell 120a and the PRACH resource pair of the second cell 120b.
  • the interference generated by the PRACH resources of the cell 110 may shift the PRACH resource of the first cell 110 and the PRACH resource of the second cell 120a and the PRACH resource of the second cell 120b to avoid the PRACH resource of the second cell 120a and the PRACH resource pair of the second cell 120b.
  • FIG. 2 is a schematic flowchart of a resource allocation method according to an embodiment of the present invention.
  • the method is performed by a resource allocation device, for example, may be a base station.
  • the base station may be a Base Transceiver Station (BTS) in GSM or CDMA, or may be a base station (NodeB) in WCDMA, or may be an evolved Node B (eNB or e-NodeB) in LTE.
  • BTS Base Transceiver Station
  • NodeB base station
  • eNB evolved Node B
  • e-NodeB evolved Node B
  • the first cell may be the first cell 110 of FIG.
  • the at least one second cell may be the second cell 120a and the second cell 120b in Fig. 1.
  • the information of the second PRACH resource may indicate time domain information and/or frequency domain information of the second PRACH resource.
  • the second PRACH resource may include a PRACH resource of each second cell.
  • the first PRACH resource is allocated to the first cell according to the information of the second PRACH resource, where the first PRACH resource and the second PRACH resource are staggered in the time domain and/or the frequency domain.
  • the base station may allocate the first PRACH resource to the first cell according to the information of the second PRACH resource. If the first cell and the at least one second cell do not belong to the same base station, the network side server may send the information of the second PRACH resource to the base station to which the first cell belongs, and the base station to which the first cell belongs may be based on the slave network side server. Receiving the information of the second PRACH resource, and allocating the first PRACH resource to the first cell. The network side server may be recorded with each cell
  • the network element of the related information of the PRACH resource may be, for example, a mobility management entity (Mobility Management Entity, ⁇ ), which is not limited by the embodiment of the present invention.
  • Mobility Management Entity Mobility Management Entity
  • the information of the second PRACH resource may include a configuration index of the second PRACH resource (PRACH Configuration Index).
  • the resource allocation device may allocate a configuration index of the first PRACH resource to the first cell, so that the first The configuration index of the PRACH resource is different from the configuration index of the second PRACH resource, and the configuration index is used to indicate the subframe occupied by the PRACH resource.
  • the configuration index of the first PRACH resource is different from the configuration index of the second PRACH resource, that is, the subframe occupied by the first PRACH resource is different from the subframe occupied by the second PRACH resource, so that the first PRACH resource and the first
  • the two PRACH resources are staggered in the time domain, so that the same-frequency interference of the second PRACH resource to the first PRACH resource and the false alarm probability caused by the same-frequency interference can be reduced.
  • the information of the second PRACH resource may be used to indicate a radio frame where the second PRACH resource is located.
  • the resource allocation device may allocate the first PRACH resource to the first cell, such that the radio frame in which the first PRACH resource is located is not synchronized with the radio frame in which the second PRACH resource is located.
  • the radio frame where the first PRACH resource is located and the radio frame where the second PRACH resource is located may be asynchronous, for example, a Global Positioning System (GPS) that can make the radio frame where the first PRACH resource is located. Time is different from the second PRACH The starting GPS time of the radio frame where the source is located.
  • GPS Global Positioning System
  • the synchronization between the radio frame where the first PRACH resource is located and the radio frame where the second PRACH resource is located may also be used.
  • the first PRACH resource and the second PRACH resource are staggered in the time domain. Therefore, in the embodiment of the present invention, by shifting the first PRACH resource and the second PRACH resource in the time domain, the same-frequency interference of the second PRACH resource to the first PRACH resource and the false alarm probability caused by the same-frequency interference can be reduced.
  • the information about the second PRACH resource may be used to indicate a physical resource block (PRB) occupied by the second PRACH resource.
  • the resource allocation device may allocate the first PRACH resource to the first cell.
  • the occupied PRB is such that the PRB occupied by the first PRACH resource and the PRB occupied by the second PRACH resource are staggered.
  • the resource allocation device may determine an alternate PRB that can be occupied by the first PRACH resource, and the PRB occupied by the candidate PRB and the second PRACH resource are staggered, and are selected from the candidate PRBs.
  • the PRB occupied by the first PRACH resource is such that the interval between the PRB occupied by the first PRACH resource and the PRB occupied by the second PRACH resource is the largest in the candidate PRB.
  • the resource allocation device may determine, in the uplink frequency domain resource other than the physical uplink control channel (PUCCH) resource, the candidate PRB that is offset from the PRB occupied by the second PRACH resource. Select from the alternative PRB and the second The PRB with the largest PRB interval occupied by the PRACH resource is used as the PRB occupied by the first PRACH resource. In this way, the co-channel interference of the second PRACH resource with the first PRACH resource can be minimized.
  • PUCCH physical uplink control channel
  • the first PRACH resource allocated to the first cell may be offset from the second PRACH resource in the time domain, the frequency domain or the time-frequency domain, so that the second PRACH resource of the second cell and the first PRACH of the first cell can be reduced. Co-channel interference of resources.
  • the first cell may be an already established cell, or may be a newly created cell.
  • the resource allocation device may re-allocate the PRACH resource for the already established cell, or allocate the PRACH resource for the newly created cell. This embodiment of the present invention does not limit this.
  • the second PRACH resource is allocated to the first PRACH resource and the second PRACH resource of the second neighboring cell is offset in the time domain and/or the frequency domain, so that the second PRACH resource can be reduced to the first PRACH.
  • the co-channel interference of resources and the false alarm probability caused by co-channel interference can improve random access performance and access success rate.
  • FIG. 3 is a schematic diagram of PRACH resource allocation according to an embodiment of the present invention.
  • Figure 3 will be described below in conjunction with Figure 1. It should be noted that, for the convenience of description, only two second cells are described in FIG. 3, but the embodiment of the present invention is not limited to such a number, and the second cell may be one or three. One or more.
  • the first cell 110 is adjacent to the second cell 120a and the second cell 120b. It is assumed that the information of the second PRACH resource includes the configuration of the second PRACH resource.
  • the second PRACH resource may include the PRACH resource of the second cell 120a and the PRACH resource of the second cell 120b, that is, the information of the second PRACH resource may include the configuration index of the PRACH resource of the second cell 120a and the PRACH resource of the second cell 120b.
  • the configuration index of the first PRACH resource allocated by the resource allocation device to the first cell no may be staggered in the time domain from the PRACH resource of the second cell 120a and the PRACH resource of the second cell 120b.
  • the configuration index of the PRACH resource of the second cell 120a is 4, and the configuration index 4 indicates that the subframe occupied by the PRACH resource of the second cell 120a is the fourth subframe.
  • the configuration index of the PRACH resource of the second cell 120b is 5, and the configuration index 5 indicates that the subframe occupied by the PRACH resource of the second cell 120b is the seventh subframe.
  • the resource allocation device may allocate the configuration index of the first PRACH resource to the first cell 110 to be 3, that is, the configuration index 3 indicates that the subframe occupied by the first PRACH resource is the first subframe.
  • the correspondence between the configuration index and the subframe number may be specified by the protocol, or may be set according to the actual application. The above numerical values are intended to help those skilled in the art to better understand the embodiments of the present invention and not to limit the scope of the embodiments of the present invention.
  • the first PRACH resource of the first cell and the PRACH resources of the adjacent second cell are staggered in the time domain, which can reduce the number of The same-frequency interference of the PRACH resources of the second cell to the first PRACH resource and the false alarm probability caused by the same-frequency interference can improve the random access performance and the access success rate.
  • FIG. 4 is a schematic diagram of PRACH resource allocation according to another embodiment of the present invention.
  • Figure 4 will be described below in conjunction with Figure 1. It should be noted that for the convenience of description, only two second cells are described in FIG. 4, but the embodiment of the present invention is not limited to such a number, and the second cell may be one, or may be three or more.
  • the first cell 110 is adjacent to the second cell 120a and the second cell 120b. It is assumed that the information of the second PRACH resource indicates the radio frame in which the second PRACH resource is located.
  • the second PRACH resource may include the PRACH resource of the second cell 120a and the PRACH resource of the second cell 120b, that is, the information of the second PRACH resource may indicate the radio frame of the PRACH resource of the second cell 120a and the PRACH of the second cell 120b.
  • the radio frame where the resource is located Then, the first PRACH resource allocated by the resource allocation device to the first cell 110 may be staggered in the time domain with the PRACH resource of the second cell 120a and the PRACH resource of the second cell 120b.
  • the first PRACH resource of the first cell 110, the PRACH resource of the second cell 120a, and the PRACH resource of the second cell 120b occupy the same subframe, such as the first subframe.
  • the starting GPS time of the first subframe occupied by the first PRACH resource is t1
  • the starting GPS time of the first subframe occupied by the PRACH resource of the second cell 120a is t2
  • the first occupied by the PRACH resource of the second cell 120b is 1
  • the starting GPS time of the subframe is t3.
  • the resource allocation device may set the start GPS time t1 and t2 and t3 of the first subframe occupied by the first PRACH resource. Not synchronized.
  • the radio frame in which the first PRACH resource is located is not synchronized with the radio frame in which the PRACH resource of the second cell is located, so that the first PRACH resource of the first cell and the PRACH resource of the adjacent second cell are staggered in the time domain.
  • the same-frequency interference of the PRACH resource of the second cell to the first PRACH resource and the false alarm probability caused by the same-frequency interference can be reduced, thereby improving the random access performance and the access success rate.
  • FIG. 5 is a schematic diagram of PRACH resource allocation according to another embodiment of the present invention.
  • Figure 5 will be described below in conjunction with Figure 1. It should be noted that, for convenience of description, only two second cells are described in FIG. 5, but the embodiment of the present invention is not limited to such a number, and the second cell may be one, or may be three or more.
  • the first cell 110 is adjacent to the second cell 120a and the second cell 120b. It is assumed that the information of the second PRACH resource indicates the PRB occupied by the second PRACH resource.
  • the second PRACH resource may include the PRACH resource of the second cell 120a and the PRACH resource of the second cell 120b, that is, the information of the second PRACH resource may indicate the PRB occupied by the PRACH resource of the second cell 120a and the PRACH resource of the second cell 120b. Occupied PRB.
  • the first PRACH resource allocated by the resource allocation device to the first cell no may be staggered in the frequency domain with the PRACH resource of the second cell 120a and the PRACH resource of the second cell 120b.
  • the starting position of the PRB occupied by the PRACH resource of the second cell 120a is n2, and the ending position is n2 + 6.
  • PRB occupied by the PRACH resource of the second cell 120b The starting position is n3 and the ending position is n3 + 6.
  • the starting position of the PRB occupied by the _PRACH resource may be nl ⁇ , and the ending position is nl ⁇ +6, and the PRB occupied by the PRACH resource of the second cell 120a and the PRB occupied by the PRACH resource of the second cell 120b are Staggered.
  • the PRB occupied by the first PRACH resource and the PRB occupied by the PRACH resource of the adjacent second cell are staggered, so that the first PRACH resource of the first cell and the PRACH resource of the adjacent second cell are staggered in the frequency domain,
  • the same-frequency interference of the PRACH resource of the second cell to the first PRACH resource and the false alarm probability caused by the same-frequency interference are reduced, thereby improving the random access performance and the access success rate.
  • the first PRACH resource of the first cell and the second PRACH resource of the second cell are staggered in the time domain or the frequency domain, and the first PRACH resource may also be adjacent to the second
  • the second PRACH resource of the cell is staggered at the same time in the time domain and the frequency domain.
  • FIGS. 6a through 6c are schematic diagrams of PRACH resource allocation according to another embodiment of the present invention.
  • Figures 6a to 6c will be described below in conjunction with Figure 1. It should be noted that, for convenience of description, two second cells are described in Figs. 6a to 6c, but the embodiment of the present invention is not limited to such a number, and the second cell may be one, or may be three or more.
  • the first cell 110 is adjacent to the second cell 120a and the second cell 120b.
  • the configuration index of the PRACH resource of the second cell 120a is 4, and the subframe occupied by the PRACH resource of the second cell 120a indicated by the configuration index 4 is the fourth subframe.
  • the starting position of the PRB occupied by the PRACH resource of the second cell 120a is ⁇ 2, and the ending position is n2
  • the configuration index of the PRACH resource of the second cell 120b is 5, and the subframe occupied by the PRACH resource of the second cell 120b indicated by the configuration index 5 is the seventh subframe.
  • the PRB resource occupied by the PRACH resource of the second cell 120b has a starting position of ⁇ 3 and an ending position of n3 PRB + 6 o.
  • the resource allocation device may allocate a configuration index of the first PRACH resource to the first cell 110, where the configuration index of the first PRACH resource is different from the configuration index of the PRACH resource of the second cell 120a and the configuration of the PRACH resource of the second cell 120b.
  • the index for example, as shown in FIG. 6c, the configuration index of the first PRACH resource is 3, and the subframe occupied by the PRACH resource of the first cell 110 indicated by the configuration index 3 is the first subframe.
  • the resource allocation device may allocate the PRB occupied by the first PRACH resource to the first cell 110.
  • the starting position of the PRB occupied by the first PRACH resource may be nl ⁇ , and the ending position is nl ⁇ + 6.
  • the PRB occupied by the PRACH resource of the second cell 120a and the PRB occupied by the PRACH resource of the second cell 120b are staggered.
  • the PRB occupied by the first PRACH resource and the PRB occupied by the PRACH resources of the adjacent second cell are staggered.
  • the first PRACH resource of the first cell and the PRACH resource of the second cell are simultaneously shifted in the time domain and the frequency domain, which can reduce the co-channel interference of the PRACH resource of the second cell to the first PRACH resource and the co-channel interference.
  • the false alarm probability is raised, which can improve random access performance and access success rate.
  • FIG. 7 is a schematic diagram of PRACH resource allocation according to another embodiment of the present invention.
  • Figure 7 will be described below in conjunction with Figure 1. It should be noted that for the convenience of description, two second cells are described in Fig. 7, but the embodiment of the present invention is not limited to such a number, and the second cell may be one, or may be three or more.
  • the first cell 110 is adjacent to the second cell 120a and the second cell 120b. It is assumed that the first PRACH resource of the first cell 110, the PRACH resource of the second cell 120a, and the PRACH resource of the second cell 120b occupy the same subframe, such as the first subframe.
  • the starting GPS time of the first subframe occupied by the first PRACH resource is t1
  • the starting GPS time of the first subframe occupied by the PRACH resource of the second cell 120a is t2
  • the first of the PRACH resources of the second cell 120b is occupied by 1
  • the starting GPS time of the subframe is t3.
  • the starting position of the PRB occupied by the PRACH resource of the second cell 120a is n2 ⁇ , and the ending position is n2 ⁇ + 6.
  • the starting position of the PRB occupied by the PRACH resource of the second cell 120b is ⁇ 3, and the ending position is n 3 + 6.
  • the resource allocation device may set the first GPS time t1 of the first subframe occupied by the first PRACH resource to be out of synchronization with t2 and t3, and the first PRACH resource and the second cell 120a.
  • the PRACH resources and the PRACH resources of the second cell 120b are staggered in the time domain.
  • the resource allocation device may allocate the PRB occupied by the first PRACH resource to the first cell 110.
  • the starting position of the PRB occupied by the first PRACH resource may be nl ⁇ , and the ending position is nl ⁇ + 6.
  • the PRB occupied by the PRACH resource of the second cell 120a and the PRB occupied by the PRACH resource of the second cell 120b are staggered.
  • the radio frame in which the first PRACH resource is located is not synchronized with the radio frame in which the PRACH resource of the second cell is located, and the PRB occupied by the first PRACH resource and the PRB occupied by the PRACH resource of the adjacent second cell are staggered.
  • the first PRACH resource of the first cell and the PRACH resource of the second cell are simultaneously shifted in the time domain and the frequency domain, and the same-frequency interference of the PRACH resource of the second cell to the first PRACH resource and the same frequency can be reduced.
  • the probability of false alarm caused by interference can improve random access performance and access success rate.
  • FIG. 8 is a schematic block diagram of a resource allocation device according to an embodiment of the present invention.
  • An example of device 800 of Figure 8 is a base station.
  • Apparatus 800 includes a determining unit 810 and an allocating unit 820.
  • the determining unit 810 determines information of the second PRACH resource of the at least one second cell adjacent to the first cell.
  • the allocating unit 820 allocates the first PRACH resource to the first cell according to the information of the second PRACH resource, where the first PRACH resource and the second PRACH resource are staggered in the time domain and/or the frequency domain.
  • the second PRACH resource allocated to the first cell and the second PRACH resource of the second neighboring cell are staggered in the time domain and/or the frequency domain, so that the second PRACH can be reduced.
  • the same-frequency interference of the resources to the first PRACH resources and the false alarm probability caused by the same-frequency interference can improve the random access performance and the access success rate.
  • the information of the second PRACH resource may include a configuration index of the second PRACH resource.
  • the allocation unit 820 may allocate a configuration index of the first PRACH resource to the first cell, such that a configuration index of the first PRACH resource is different from a configuration index of the second PRACH resource, where the configuration index is used to indicate a subframe occupied by the PRACH resource.
  • the information of the second PRACH resource may be used to indicate a radio frame where the second PRACH resource is located.
  • the allocating unit 820 may allocate the first PRACH resource to the first cell, such that the radio frame in which the first PRACH resource is located is not synchronized with the radio frame in which the second PRACH resource is located.
  • the information of the second PRACH resource may be used to indicate a PRB occupied by the second PRACH resource.
  • the allocating unit 820 may allocate the PRB occupied by the first PRACH resource to the first cell, so that the PRB occupied by the first _PRACH resource and the PRB occupied by the second PRACH resource are staggered.
  • the allocating unit 820 may determine an alternate PRB that can be occupied by the first PRACH resource, and the PRB occupied by the candidate PRB and the second PRACH resource are staggered, and are selected from the candidate PRBs.
  • the PRB occupied by the first PRACH resource so that in the alternative PRB The interval between the PRB occupied by the first PRACH resource and the PRB occupied by the second PRACH resource is the largest.
  • the second PRACH resource is allocated to the first PRACH resource and the second PRACH resource of the second neighboring cell is offset in the time domain and/or the frequency domain, so that the second PRACH resource can be reduced to the first PRACH.
  • the co-channel interference of resources and the false alarm probability caused by co-channel interference can improve random access performance and access success rate.
  • determining unit 810 and the allocating unit 820 in the above device 800 may be integrated in one processor, or a storage medium stores corresponding instructions to instruct the processor to implement the above functions.
  • a storage medium stores corresponding instructions to instruct the processor to implement the above functions.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are only for example, the division of the unit is only a logical function division, and the actual implementation may have another division manner, for example, multiple units or components may be combined or may be integrated into another system, or some features. Can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, i.e., may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present invention which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a USB flash drive, a mobile hard disk, a read only memory (ROM, Read-Only) Memory Random memory and memory (RAM, Random Access Memory disk or CD-ROM, etc., which can store program code.

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Abstract

La présente invention concerne un procédé et un dispositif d'attribution de ressources. Le procédé comprend les étapes consistant à : déterminer des informations d'une seconde ressource de canal physique d'accès aléatoire (Physical Random Access Channel - PRACH) d'au moins une seconde cellule adjacente à une première cellule ; et attribuer une première ressource PRACH à la première cellule en fonction des informations de la seconde ressource PRACH, la première ressource PRACH et la seconde ressource PRACH étant décalées sur le domaine temporel et/ou sur le domaine fréquentiel. Selon le mode de réalisation de la présente invention, comme la première ressource PRACH attribuée à la première cellule et la seconde ressource PRACH de la seconde cellule adjacente sont décalées sur le domaine temporel et/ou sur le domaine fréquentiel, la même interférence de fréquence sur la première ressource PRACH par la seconde ressource PRACH peut être réduite, la probabilité de fausse alarme provoquée par la même interférence de fréquence peut être réduite, et ainsi la performance d'accès aléatoire et le taux d'accès réussi peuvent être augmentés.
PCT/CN2013/072667 2012-06-05 2013-03-15 Procédé et dispositif d'attribution de ressources WO2013181958A1 (fr)

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CN102695278B (zh) * 2012-06-05 2015-07-08 华为技术有限公司 资源分配方法及设备
WO2014101236A1 (fr) * 2012-12-31 2014-07-03 华为技术有限公司 Procédé de coordination d'interférences dans un canal de liaison montante et station de base
CN106550436A (zh) * 2015-09-21 2017-03-29 大唐移动通信设备有限公司 一种符号关断配置方法及管理设备
CN109104766A (zh) * 2017-06-20 2018-12-28 大唐移动通信设备有限公司 一种物理随机接入信道prach抗干扰方法及装置
CN110913368A (zh) * 2018-09-18 2020-03-24 大唐移动通信设备有限公司 一种轨道交通通信系统中的资源调度方法及装置
CN117651307A (zh) * 2022-08-12 2024-03-05 华为技术有限公司 一种通信方法和装置

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