WO2012174912A1 - Procédé et dispositif d'envoi d'une demande de coordination d'interférence - Google Patents

Procédé et dispositif d'envoi d'une demande de coordination d'interférence Download PDF

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Publication number
WO2012174912A1
WO2012174912A1 PCT/CN2012/073034 CN2012073034W WO2012174912A1 WO 2012174912 A1 WO2012174912 A1 WO 2012174912A1 CN 2012073034 W CN2012073034 W CN 2012073034W WO 2012174912 A1 WO2012174912 A1 WO 2012174912A1
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WO
WIPO (PCT)
Prior art keywords
base station
cell
parameter
edge user
user equipment
Prior art date
Application number
PCT/CN2012/073034
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English (en)
Chinese (zh)
Inventor
刘阳
Original Assignee
电信科学技术研究院
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Filing date
Publication date
Application filed by 电信科学技术研究院 filed Critical 电信科学技术研究院
Publication of WO2012174912A1 publication Critical patent/WO2012174912A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/27—Control channels or signalling for resource management between access points

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method and device for transmitting an interference coordination request. Background technique
  • the LTE (Long Term Evolution) system defines a number of upper-level devices for the ICIC (Inter-Cell Interference Coordination) technology, including: High (High Interference Indication) , RNTP (Relative Narrowband Transmission Power), 01 (Overload Indication), ⁇ , 01 for the uplink, and RNTP for the downlink.
  • High High Interference Indication
  • RNTP Relative Narrowband Transmission Power
  • 01 Overload Indication
  • ⁇ 01 for the uplink
  • RNTP for the downlink.
  • the above reported amount is generated by the base station and organized into load information, which is transmitted through a logical link (X2) between the base stations, thereby facilitating interference coordination between cells for the uplink and the downlink.
  • X2 logical link
  • each cell may send load information to neighboring cells. After receiving load information from neighboring cells, each cell needs to be processed based on load information to adjust and limit the center and edge user equipment of the cell.
  • the available resources and resource usage priorities are used to achieve interference coordination.
  • Any cell may send an interference coordination request (ie, load information) to the neighboring cell, and any cell needs to perform corresponding processing after receiving the interference coordination request, which is disadvantageous to the use of the user equipment in the VIP cell, and limits the resource allocation of the cell. Flexibility, no guarantee
  • an embodiment of the present invention provides a method for transmitting an interference coordination request, including:
  • the base station acquires the attribute information of the cell
  • the base station sends an interference coordination request to the base station of the neighboring cell;
  • the base station acquires neighbor cell attribute information
  • the base station sends an interference coordination request to the base station of the neighboring cell;
  • the base station determines not to transmit an interference coordination request to the base station of the neighboring cell.
  • An embodiment of the present invention provides a base station device, including:
  • a first acquiring module configured to acquire attribute information of the current cell
  • a first sending module configured to: when the local cell attribute information is a VIP cell, send an interference coordination request to the base station of the neighboring cell;
  • a second ear block configured to acquire neighboring cell attribute information when the attribute information of the cell is a non-VIP cell
  • a second sending module configured to: when the neighbor cell attribute information is a non-VIP cell, send an interference coordination request to the base station of the neighboring cell;
  • a determining module configured to: when the neighbor cell attribute information is a VIP cell, determine not to send an interference coordination request to the base station of the neighboring cell.
  • the present invention has at least the following advantages: better protection
  • FIG. 1 is a schematic flowchart of a method for transmitting an interference coordination request according to Embodiment 1 of the present invention
  • FIG. 2 is a schematic diagram showing the setting of a parameter of the embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a base station apparatus according to Embodiment 2 of the present invention. detailed description
  • the VIP community includes but is not limited to: government office building, operator's main hall, important meeting place or meeting place.
  • ICIC technology is introduced in an LTE system to ensure coverage and improve cell edge user performance by coordinating the use of time-frequency resources and power resources among multiple cells.
  • the above process does not take into account the VIP cell. Any cell can send an interference coordination request to the neighboring cell, and any cell needs to perform corresponding processing after receiving the interference coordination request. If the VIP cell receives the interference coordination request, the VIP The cell will also respond to limit the resource usage of the community.
  • the VIP cell limits the edge user to the PRB (Physical Resource Block) that is identified as 1 in the ⁇ cell.
  • the device uses the PRB or reduces the priority of the edge user equipment to use these PRBs.
  • the VIP cell will impose more restrictions on the resource allocation of the edge user equipment. It can be seen that the prior art limits the allocation of VIP cell resources. The flexibility of the edge user equipment under the VIP cell cannot be guaranteed.
  • the present invention provides a method and a device for transmitting an interference coordination request, and the user equipment (especially the edge user equipment) in the VIP cell can obtain a better user according to the characteristics of the VIP cell protection and the ICIC technology. Experience.
  • a first embodiment of the present invention provides a method for transmitting an interference coordination request.
  • a non-VIP cell ie, a normal cell
  • an interference coordination request ie, load information
  • the VIP cell can be adjacent to the
  • the non-VIP cell sends an interference coordination request, and the adjacent non-VIP cell needs to process the interference coordination request sent by the VIP cell.
  • the method includes the following steps:
  • Step 101 The base station acquires the attribute information of the current cell.
  • the cell attribute information may be a VIP cell or a non-VIP cell. If the cell attribute information is a VIP cell, step 102 is performed. If the cell attribute information is a non-VIP cell, step 103 is performed.
  • the cell attribute information of each cell can be configured on each base station by using O&M (Operation & Maintenance). Therefore, the base station can directly obtain the attribute information of the cell by facilitating the configuration.
  • O&M Operaation & Maintenance
  • Step 102 The base station sends an interference coordination request to the base station of the neighboring cell.
  • the attribute information of the neighboring cell is a VIP cell or a non-VIP cell, and the base station may send an interference coordination request to the base station of the neighboring cell.
  • Step 103 The base station acquires neighbor cell attribute information. If the neighbor cell attribute information is a non-VIP cell, step 104 is performed. If the neighbor cell attribute information is a VIP cell, step 105 is performed.
  • Step 104 The base station sends an interference coordination request to the base station of the neighboring cell.
  • the base station may send an interference coordination request to the base station of the neighboring cell, and the process is not described in the embodiment of the present invention. .
  • Step 105 The base station determines not to send an interference coordination request to the base station of the neighboring cell.
  • the base station cannot send an interference coordination request to the base station of the neighboring cell, that is, the non-VIP cell adjacent to the VIP cell is not allowed to the VIP cell. Send an interference coordination request.
  • the process for the base station to send the interference coordination request to the base station of the neighboring cell is specifically: the base station according to the preset period (such as the time interval T, the time interval T is
  • the frequency resource allocation is performed according to its own scheduling algorithm policy. That is, the scheduler of the VIP cell allocates frequency resources when scheduling the user equipment of the local cell. It is not affected by neighboring cells, and it is not necessary to consider the parameters of neighboring cells. Thereafter, the base station determines the HII parameter according to the frequency resource allocation result; and the base station sends an interference coordination request carrying the HII parameter to the base station of the neighboring cell.
  • the current period may not send an interference coordination request carrying the HII parameter to the base station of the neighboring cell; otherwise, the base station to the neighboring cell Send an interference coordination request carrying the ⁇ parameter.
  • the ⁇ parameter is used to indicate the PRB allocated by the base station to the edge user equipment, and the base station of the neighboring cell avoids the PRB when scheduling the edge user equipment; and the ⁇ parameter has the following characteristics: prediction indication; one on each PRB Bit, 1 indicates that the edge user equipment will use or preferentially use this PRB, 0 means that the edge user equipment does not use or does not use this PRB preferentially; event triggering; minimum update interval is 20ms.
  • the base station may schedule the edge user equipment by using the PRB indicated in the ⁇ parameter of the current period, that is, the scheduler of the local cell sends the current period.
  • the edge user equipment is scheduled on the available PRB resources indicated in the parameter (ie, the resource indicating that the PRB is 1). after that, After receiving the interference coordination request carrying the parameter, if the base station of the neighboring cell determines that the HII parameter is from the VIP cell, the edge user under the base station of the neighboring cell is not allowed to be scheduled on the PRB indicated by 1 in the HII parameter. device.
  • the process of determining, by the base station, the parameter according to the frequency resource allocation result includes: a frequency resource allocated by the base station to the edge user equipment according to the previous period, and a frequency resource allocated to the edge user equipment when the current period is set. , Determine the HII parameters (ie determine the PRB settings).
  • UEi When the ⁇ parameter needs to be set, UEi is not an edge user device, then The resource Ri corresponding to UEi is not included in the resource.
  • the number of PRBs included in the parameter is less than Nreq
  • the number of PRBs reserved for the edge user equipment in the HII parameter is taken as Nreq
  • the remaining PRBs the number of remaining PRBs are: Nreq minus the parameters included in the parameter
  • the selection method of the number of PRBs of 1 is as follows: Try to be continuous with the PRB indicated in the parameter to ensure a certain peak rate.
  • Nreq is the edge user equipment resource requirement Nreq (the number of PRBs) obtained according to the spectrum efficiency and data rate requirements of the edge user equipment.
  • Nreq ( PRBOccupy/DataRate ) *DataRateReqSum; where PRBOccupy is the average number of PRBs occupied by each edge subframe of the edge user equipment, DataRate is the total actual transmission rate of all edge user equipments, and DataRateReqSum is used for all edges. The sum of the rate requirements of the upstream services of the user equipment.
  • the scheduler schedules two edge user equipments UE1 and UE2, and the PRB resources allocated for UE1 and UE2 are as shown in FIG. 2.
  • the scheduler decides to schedule.
  • the two edge user equipments UE2 and UE3 determine that the UE2 is scheduled for the current period and the previous period. Therefore, the HII parameter is set for the resources allocated by the UE2 in the current period, that is, the parameter is R1U (R2UR3). If UE1 determines that UE1 is no longer an edge user equipment when the ⁇ parameter is set in the current period, the ⁇ parameter is R2 U R3.
  • R1 represents a set of PRB resources allocated by the scheduler to UE1 at a time when the parameter is set in the previous cycle
  • R2 and R3 represent a set of PRB resources allocated by the scheduler to UE2 and UE3 at the time when the HII parameter is set in the current cycle.
  • the embodiment of the present invention further provides a base station device.
  • the base station device includes:
  • the first ear is used to obtain the attribute information of the cell
  • the first sending module 12 is configured to: when the attribute information of the local cell is a VIP cell, send an interference coordination request to the base station of the neighboring cell;
  • the second ear is used to obtain the neighbor cell attribute information when the attribute information of the cell is a non-VIP cell;
  • the second sending module 14 is configured to: when the neighbor cell attribute information is a non-VIP cell, send an interference coordination request to the base station of the neighboring cell;
  • the determining module 15 is configured to: when the neighbor cell attribute information is a VIP cell, determine not to send an interference coordination request to the base station of the neighboring cell.
  • the first sending module 12 is specifically configured to perform frequency resource allocation in a full bandwidth according to a preset period, and determine a high interference indication parameter according to a frequency resource allocation result; and send, to the base station of the neighboring cell, the carrying Interference coordination request for parameters.
  • the ⁇ parameter is used to indicate a physical resource block PRB allocated to an edge user equipment,
  • the base station of the neighboring cell circumvents the PRB when scheduling the edge user equipment; and the edge user equipment is scheduled by the PRB indicated in the ⁇ parameter of the current period between the current period and the next period in which the interference coordination request is sent.
  • the ⁇ parameter is used to indicate the PRB allocated by the base station to the edge user equipment; the first sending module 12 is further configured to allocate the frequency resource allocated to the edge user equipment according to the previous period, and the current period. Set the frequency resource allocated to the edge user equipment when setting the parameter, and determine the parameter.
  • ⁇ parameters include:
  • UEi When setting ⁇ parameter, UEi is not an edge user device, then The resource Ri corresponding to UEi is not included in the resource.
  • the number of PRBs included in the parameter is less than Nreq
  • the number of PRBs reserved for the edge user equipment in the HII parameter is taken as Nreq; the Nreq is obtained according to the spectrum efficiency and data rate requirements of the edge user equipment.
  • Nreq ( PRBOccupy/DataRate ) *DataRateReqSum;
  • PRBOccupy is the average number of PRBs per edge subframe of the edge user equipment,
  • DataRate is the total actual transmission rate of all edge user equipments, and
  • DataRateReqSum is the rate of uplink services of all edge user equipments. The sum of the needs.
  • modules of the device of the present invention may be integrated or integrated.
  • the above modules can be combined into one module, or can be further split into multiple sub-modules.
  • modules in the apparatus in the embodiments may be distributed in the apparatus of the embodiment according to the description of the embodiments, or may be correspondingly changed in one or more apparatuses different from the embodiment.
  • the modules of the above embodiments may be combined into one module, or may be further split into a plurality of sub-modules.

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

Abstract

L'invention concerne un procédé et un dispositif d'envoi d'une demande de coordination d'interférence. Le procédé comprend les opérations suivantes : une station de base obtient les informations d'attribut d'une cellule; si les informations d'attribut de la cellule sont une cellule VIP, alors la station de base envoie une demande de coordination d'interférence à la station de base d'une cellule voisine; si les informations d'attribut de la cellule sont une cellule non VIP, alors la station de base obtient les informations d'attribut de la cellule voisine; si les informations d'attribut de la cellule voisine sont une cellule non VIP, alors la station de base envoie la demande de coordination d'interférence à la station de base de la cellule voisine; et si les informations d'attribut de la cellule voisine sont une cellule VIP, alors la station de base détermine de ne pas envoyer la demande de coordination d'interférence à la station de base de la cellule voisine. Dans le mode de réalisation de la présente invention, l'expérience de performance d'un équipement utilisateur dans la cellule VIP peut être mieux assurée.
PCT/CN2012/073034 2011-06-21 2012-03-26 Procédé et dispositif d'envoi d'une demande de coordination d'interférence WO2012174912A1 (fr)

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Application Number Priority Date Filing Date Title
CN201110167457.8A CN102223687B (zh) 2011-06-21 2011-06-21 一种干扰协调请求的发送方法和设备
CN201110167457.8 2011-06-21

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CN102223687B (zh) * 2011-06-21 2014-02-05 电信科学技术研究院 一种干扰协调请求的发送方法和设备
CN103874222B (zh) * 2012-12-13 2017-04-05 京信通信系统（中国）有限公司 Hsdpa的干扰控制方法和装置
CN108631901B (zh) * 2017-03-24 2020-03-10 华为技术有限公司 一种信息传输方法、处理方法及装置
CN109842922B (zh) * 2017-11-29 2021-09-17 中国电信股份有限公司 重要客户保障方法、装置和系统

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CN101472339A (zh) * 2007-12-25 2009-07-01 华为技术有限公司 一种小区干扰协调的方法
CN101541088A (zh) * 2008-03-19 2009-09-23 中国移动通信集团公司 一种蜂窝小区间干扰的消除方法、装置及系统
CN102017765A (zh) * 2008-04-29 2011-04-13 高通股份有限公司 在无线蜂窝式系统中实现网络qos目标的接入点间干扰信息交换机制
CN102223687A (zh) * 2011-06-21 2011-10-19 电信科学技术研究院 一种干扰协调请求的发送方法和设备

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CN101472339A (zh) * 2007-12-25 2009-07-01 华为技术有限公司 一种小区干扰协调的方法
CN101541088A (zh) * 2008-03-19 2009-09-23 中国移动通信集团公司 一种蜂窝小区间干扰的消除方法、装置及系统
CN102017765A (zh) * 2008-04-29 2011-04-13 高通股份有限公司 在无线蜂窝式系统中实现网络qos目标的接入点间干扰信息交换机制
CN102223687A (zh) * 2011-06-21 2011-10-19 电信科学技术研究院 一种干扰协调请求的发送方法和设备

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