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WO2005122610A1 - Procede d'attribution des ressources et signaux de routage dans une station de base (bs) centralisee - Google Patents

Procede d'attribution des ressources et signaux de routage dans une station de base (bs) centralisee Download PDF

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Publication number
WO2005122610A1
WO2005122610A1 PCT/CN2004/000623 CN2004000623W WO2005122610A1 WO 2005122610 A1 WO2005122610 A1 WO 2005122610A1 CN 2004000623 W CN2004000623 W CN 2004000623W WO 2005122610 A1 WO2005122610 A1 WO 2005122610A1
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WO
WIPO (PCT)
Prior art keywords
channel processing
processing unit
wireless link
channel
cell
Prior art date
Application number
PCT/CN2004/000623
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English (en)
Chinese (zh)
Inventor
Sheng Liu
Original Assignee
Utstarcom Telecom Co., Ltd.
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 Utstarcom Telecom Co., Ltd. filed Critical Utstarcom Telecom Co., Ltd.
Priority to PCT/CN2004/000623 priority Critical patent/WO2005122610A1/fr
Priority to JP2007526163A priority patent/JP4510888B2/ja
Priority to CNB2004800431435A priority patent/CN100551154C/zh
Publication of WO2005122610A1 publication Critical patent/WO2005122610A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/08—Load balancing or load distribution
    • H04W28/086—Load balancing or load distribution among access entities
    • H04W28/0861—Load balancing or load distribution among access entities between base stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present invention relates to the technical field of distributed base stations in mobile communication systems, and in particular, to a resource allocation and control method in a centralized base station system using radio frequency units for remote control. Background technique
  • a base station In a mobile communication system, a base station (BTS) completes the transmission, reception, and processing of wireless signals.
  • Traditional BTS mainly consists of a baseband processing subsystem, a radio frequency (RF) subsystem, and an antenna.
  • a BTS can cover different antennas through multiple antennas.
  • a cell (cell) is shown in FIG. 1 (a); and each BTS is connected to a base station controller (BSC) or a radio network controller (RNC) through a certain interface, thereby forming a radio access network (RAN) As shown in Figure 1 (b).
  • BSC base station controller
  • RNC radio network controller
  • FIG. 2 shows the system structure of another distributed base station, that is, a centralized base station that uses a radio frequency unit to extend the distance.
  • this centralized base station using radio frequency units has many advantages: it allows multiple micro cells to replace a macro cell based on a traditional base station, which can better adapt to different wireless environments and improve the system's Wireless performance such as capacity and coverage;
  • the centralized structure enables soft handover to be completed with softer handover, thereby obtaining additional processing gain;
  • the centralized structure also makes expensive baseband signal processing resources a resource pool shared by multiple cells, Thus, the benefits of statistical multiplexing are obtained, and the system cost is effectively reduced.
  • a centralized base station system using a radio frequency unit is mainly composed of a centrally installed central channel processing main unit (MU) 10 and multiple remote radio frequency units (RRIJ) 20, and a broadband transmission link is used between them. Or network connection, and the BSC / RNC interface unit is responsible for completing the user plane and signaling plane processing of the BTS and BSC / RNC interface.
  • the main unit of the central channel processing is mainly composed of functional units such as a channel processing resource pool and a signal routing and distribution unit. Among them, the channel processing resource pool is formed by stacking multiple channel processing units to complete tasks such as baseband signal processing.
  • the signal routing and distribution unit is based on Different cell traffic (Traffic) to dynamically allocate channel processing resources, so as to achieve effective sharing of multi-cell processing resources.
  • the signal routing and distribution unit can also be implemented outside the MU as a separate device.
  • the remote radio frequency unit is mainly composed of functional units such as a radio frequency power amplifier of a transmitting channel, a low noise amplifier of a receiving channel, and an antenna.
  • the link between the central channel processing main unit 10 and the remote radio frequency unit can typically use optical fiber, copper cable, microwave and other transmission media; the signal transmission method can be a sampled digital signal or a modulated analog signal; the signal can be used Baseband, IF, or RF signals.
  • the baseband signal processing resources are mainly composed of A RAKE receiver or other enhanced receiving technologies, such as a chip-level processing unit with multi-user detection (MUD) as the core and a symbol-level processing unit with channel codec processing as the core, are composed of symbol-level processing and user service types. It is closely related to the rate, and chip-level processing is little affected by the user's service type and rate relationship, which is mainly related to the number of service channels.
  • a RAKE receiver or other enhanced receiving technologies such as a chip-level processing unit with multi-user detection (MUD) as the core and a symbol-level processing unit with channel codec processing as the core, are composed of symbol-level processing and user service types. It is closely related to the rate, and chip-level processing is little affected by the user's service type and rate relationship, which is mainly related to the number of service channels.
  • the channel processing function typically has two possible structures. One is to integrate the chip-level processing unit and the symbol-level processing unit on a single board. The system consists of multiple configurable channel processing modules. The second is to enable chip-level processing units and symbol-level processing units to be implemented on different boards. That is, the system consists of multiple configurable chip-level processing modules. And symbol-level processing module.
  • Figures 3 and 4 show typical implementation examples of the above two structures.
  • the system is composed of M independent channel processing modules.
  • the so-called “independent” means that they each complete a corresponding channel. Process tasks without internal signal interconnection. Because there is no internal signal interconnection, the design of the system backplane bus is greatly simplified, which is conducive to the formation of a large-scale centralized base station. Although the independence between modules is not conducive to the effective use of system resources, the existing baseband signals An all-software implementation solution based on a digital signal processor (DSP) or multiple processing unit array structure in parallel has also appeared in the processing solution. Due to the flexibility of the software in the scheduling of processor resources, the structure is greatly reduced. Insufficient use of system resources.
  • DSP digital signal processor
  • the system is composed of a chip-level processing module and ⁇ symbol-level processing modules.
  • the chip-level processing modules are independent of each other, that is, they each complete the corresponding chip-level processing tasks without internal signal interconnection. Due to the high chip-level processing rate, the chip-level processing modules interconnecting internal signals with each other will cause System structure Hybrid, it is more difficult to apply in large-scale centralized base stations; On the other hand, because the rate is relatively low, the symbol-level processing module allows internal signal interconnection to achieve processing resource sharing, so the symbol-level processing part can be seen Into a continuous single processing module.
  • the channel processing unit corresponds to the channel processing system structure shown in FIG. 3 corresponding to each channel processing module, and the channel processing system structure shown in FIG. 4 corresponds to the chip level.
  • Processing module (Since the symbol-level processing part is a continuous single processing module, the above allocation problem does not exist, and its internal resource scheduling is not considered in the present invention).
  • the present invention proposes an effective solution to the above problems.
  • an object of the present invention is to provide a method for allocating channel resources in a centralized base station of a wireless communication system.
  • the method includes the following steps:
  • the optimal channel processing unit is selected for each newly added wireless link, so that the channel processing related to each newly added wireless link is performed in the corresponding selected optimal channel processing unit, respectively.
  • the method further includes the step of: quantifying each of the new radio resource information using a system's known resource model information according to parameters related to each of the newly added radio links in the access process.
  • the resource occupation amount of the added wireless link, and an optimal channel processing unit is selected for each newly added wireless link based on the quantified resource occupation amount of each newly added wireless link.
  • the wireless chain that is responsible for processing with each selected optimal channel processing unit is made
  • the cells corresponding to the roads are as close as possible geographically and concentrated in a certain area.
  • an optimal channel processing unit is selected for each newly added wireless link (including newly established and increased wireless links due to macro diversity), and optimization of each channel processing resource in the base station at this point can be achieved. distribution.
  • resource scheduling may be performed between the channel processing units according to the medium-to-long-term statistical results of the load of the channel processing unit of the centralized base station to balance the channel processing units. Handling load.
  • Another object of the present invention is to provide a method for performing adaptive resource scheduling and load balancing in a centralized base station of a wireless communication system.
  • the method includes steps:
  • an optimal channel processing unit is selected for each newly added wireless link, so that the channel related to each newly added wireless link The processing is performed respectively in the corresponding optimal channel processing unit selected.
  • the cells corresponding to the wireless links that are handled by the optimal channel processing unit selected for each newly added wireless link are geographically optimized. May be adjacent and concentrated in a certain area.
  • the cells controlled by the centralized base station are divided into corresponding groups of different resource allocation levels. And selecting an optimal channel processing unit for each newly added wireless link according to the resource allocation level of the divided cell set from high to low.
  • a centralized hub for implementing the channel resource allocation method of the present invention is provided.
  • the centralized base station includes:
  • RRUs which are coupled to the central channel processing main unit MU through a broadband transmission link or network connection;
  • the centralized base station further includes
  • An optimal channel selection component is configured to select an optimal channel processing unit for each newly added wireless link, so that the channel processing related to each newly added wireless link is respectively selected in the corresponding corresponding optimal channel. In the processing unit.
  • the optimal information The channel selection component is configured to select an optimal channel processing unit for each newly added wireless link based on the resource occupancy of each newly added wireless link quantified using the system's known resource model information.
  • the optimal channel selection component is configured so that the cells corresponding to the wireless links that each selected optimal channel processing unit is responsible for processing are geographically adjacent as much as possible and concentrated in a certain area. Areas.
  • the allocation of channel processing resources in a centralized base station is decomposed into two relatively independent processes, one is for each newly added wireless link (including newly established wireless links and increased wireless due to macro diversity). Link) to select the optimal channel processing unit; the other is to perform resource scheduling among channel processing units to balance the processing load of each channel processing unit based on the medium-to-long-term statistical results of the channel processing unit load of the centralized base station, This achieves the purpose of maximizing the utilization of channel processing resources. That is to say, the former process can optimize the allocation of channel processing resources in the centralized base station, and the latter process is a further improvement on the former process.
  • Figure 1 (a) shows a conventional BTS structure
  • Figure 1 (b) shows the structure of a conventional radio access network
  • Fig. 2 shows the structure of a centralized base station system using a radio frequency unit
  • Fig. 3 shows the chip level in the channel processing function part of the prior art base station system. System structure for processing integration with symbol-level processing units;
  • FIG. 4 shows a system structure in which chip-level processing and symbol-level processing units are separated in a channel processing function part of a base station system in the prior art
  • FIG. 5 is a schematic diagram of three cell sets of each channel processing unit of a centralized base station according to an embodiment of the present invention
  • FIG. 6a shows a schematic flowchart of a radio link optimal channel processing unit selection process implemented in a centralized base station according to an embodiment of the present invention
  • FIG. 6b shows a detailed flowchart of the optimal channel processing unit selection process in FIG. 6a
  • FIG. 7a illustrates a first case of an embodiment of a channel processing resource adaptive scheduling and load balancing method according to the present invention
  • Fig. 7b shows a second case of an embodiment of a method for adaptive scheduling and load balancing of channel processing resources according to the present invention. detailed description
  • the centralized base station system resources involved are:
  • Each channel processing unit allows simultaneous processing at most RRU wireless signal channel resources that are exchanged or routed to each channel processing unit; and as previously mentioned, radio links of different rates and service types occupy different chip-level processing resources and symbol-level processing resources.
  • the wireless link that is increased due to macro diversity also occupies system resources. Therefore, it is necessary to quantify each newly added wireless link parameter based on wireless link parameters such as rate, service type, and whether the wireless link is added for macro diversity.
  • the resource occupation amount of the wireless link for analysis and evaluation of resource occupation.
  • the processing of the optimal channel processing unit selected for corresponding channel processing is actually equivalent to A table lookup operation.
  • the selection of the optimal channel processing unit for each newly added wireless link (including newly established and increased wireless links due to macro diversity) in the access process should follow the following principles: that is, the optimal channel processing unit The selection should occupy as little RRU signal channel resources as possible for each channel processing unit; as far as possible, the RRU wireless signals of the cells where the macro diversity branches are located can be exchanged to the same channel processing unit when soft handover occurs to achieve softer handover. Processing; Minimize cross-channel processing unit handover operations caused by mobile terminals such as handover in different cells.
  • the adopted mobile communication system supports soft handover technology
  • processing all macro-diversity branches of a mobile terminal at the same time in the same channel processing unit is conducive to reducing the consumption of system processing resources and improving wireless coverage and capacity. performance.
  • soft handover technology such as a TDD (Time Division Duplex) mode CDMA system
  • a mobile terminal moves between different cells, the channel processing of its wireless link is still performed in the same channel processing unit.
  • the migration operation of context information related to the mobile terminal between different channel processing units can be reduced, and related parameter configuration in a new channel processing unit can be reduced. Operations such as installation and operation, thereby simplifying the complexity of the system and contributing to the improvement of system stability and reliability.
  • the optimal channel processing unit selection of each newly added wireless link (including newly established and increased wireless links due to macro diversity) in the access process is such that The cells corresponding to the wireless links handled by each channel processing unit are geographically adjacent as much as possible and concentrated in a certain area. In this way, it will help to occupy as little RIOJ signal channel resources as possible for each channel processing unit.
  • the RRU radio signals of the cells where the macro-diversity branches are located can be exchanged to the same channel processing unit to improve the radio performance when soft handover occurs; The handover operation of the cross-channel processing unit caused by the mobility process.
  • a preferred implementation manner of selecting an optimal channel processing unit for each newly added wireless link (including newly created and increased wireless links due to macro diversity) in the access process according to the present invention is as follows .
  • the cells controlled by the centralized base station are divided into a corresponding set of cell sets with different resource allocation levels.
  • the The cell is divided into three cell sets: a basic cell, a candidate cell, and a remaining cell.
  • Each channel processing unit preferentially processes the business channels of the cells in its basic cell set, followed by the business channels of the cells in the candidate cell set, and finally in the remaining cell set.
  • the traffic channel of the cell According to the present invention, the following principles should be followed for the classification of a community:
  • Each cell to which the centralized base station belongs must be in one and only one basic cell set of a channel processing unit.
  • This channel processing unit is called the home channel processing unit of the cell. Therefore, the basic cell set of all channel processing units intersects. It is empty and merges into all cells to which the centralized base station belongs;
  • a basic cell is a collection of geographically adjacent cells, so The RRIJ signal channel resources of each channel processing unit are less occupied, which is conducive to making it possible to exchange the RRU wireless signals of the cells where the macro diversity branches are located to the same channel processing unit when soft handover occurs. To achieve softer handovers;
  • the cells in the candidate cell set of each channel processing unit are the neighboring cells that are geographically adjacent to the cells in the basic cell set of the channel processing unit. Therefore, it is the part of the basic cell set whose geographical coverage is expanded. Overlapping coverage, a cell may be in the candidate cell set of multiple channel processing units at the same time. As described later, the cells in the candidate cell set are candidate cells for load sharing, that is, when a channel processing unit has a surplus of channel processing resources and other channel processing units have a large channel processing load, the channel processing unit may preferentially Provide channel processing resources for cells in its candidate cell set. If the candidate cell set of a channel processing unit includes some cells in the basic cell set of other channel processing units, the channel processing unit is called an adjacent channel processing unit of these channel processing units;
  • Residual cell set is the set of cells belonging to the centralized base station other than the basic cell and the candidate cell. Because the cells in the remaining cell set are geographically far away from the cells processed by their channel processing unit, they may consume excessive RRU signal channel resources and make it harder to implement softer handover processing. Therefore, as described later, only the In extreme cases, it will be the choice for load sharing.
  • Figure 5 shows a schematic diagram of the above three types of cell sets.
  • the centralized base station has a total of 9 channel processing units, and the basic cell set corresponding to each channel processing unit is shown as D1, D2,...
  • the .D9 area is expanded into the E1, E2, ...
  • E9 areas marked in the figure after adding its corresponding candidate cell set where each area contains a certain number of geographically adjacent cells. It can be seen that the basic cell set of all channel processing units covers all the cells of the centralized base station. A cell has only one home channel processing unit, but a cell may be in a candidate cell set of multiple channel processing units at the same time.
  • FIG. 6a and 6b are flowcharts of a process of selecting an optimal channel processing unit for a wireless link implemented in a centralized base station according to the preferred embodiment of the present invention.
  • Fig. 6a shows a schematic flow of the optimal channel selection process.
  • step S50 for each channel processing unit in the centralized base station, the cells controlled by the centralized base station are divided into corresponding groups with different resource allocation levels in the manner shown in FIG. 5.
  • Fig. 6b shows the detailed processing flow of steps S60 and S70 in Fig. 6a.
  • the base station receives a new or added wireless link message from the BSC / RNC (step S100), it performs corresponding message processing and obtains parameters such as the wireless link rate and service type, while considering the new wireless link.
  • step S110 use the system's known resource model information to quantify the resource occupancy of the wireless link
  • step S120 uses the system's known resource model information to quantify the resource occupancy of the wireless link
  • step S120 uses the system's known resource model information to quantify the resource occupancy of the wireless link
  • step S120 uses the system's known resource model information to quantify the resource occupancy of the wireless link
  • step S120 determines whether the home channel processing unit of the cell in which it is located can provide sufficient resources (including chip-level processing unit resources, symbol-level processing unit resources, RRU wireless signal channel resources, etc.) for the wireless link (step S130); If the judgment result of step S130 is "No", that is, the home channel processing unit cannot provide the required resources, then all candidate cell sets are searched for in the channel processing unit containing the cell where the wireless link is located (step S140), and then the available resources are selected.
  • step (S150) determine whether the corresponding channel processing unit can provide the required resources for the wireless link (step (S150); If the determination result of step S150 is "No", that is, all the channel processing units are still unable to provide the required resources, then determine whether the other channel processing units can be The wireless link provides Supply the required resources (step S160), if a channel processing unit that meets the requirements is still not found, return a wireless link establishment or addition failure message to the BSC / RNC and indicate that the reason for the failure is insufficient processing resources (step S210).
  • step S170 Route the RRU wireless signal to the channel processing unit (step S180), then allocate and configure corresponding channel processing resources for the wireless link, update the statistical information of the resource status of the corresponding channel processing unit (step S190), and send the BSC / The RNC returns a message that the radio link is successfully established or added (step S200).
  • the home channel processing unit of the cell in which it is located is preferentially selected, which is beneficial to occupying as few RRU signal channel resources of each channel processing unit as possible, and to make soft handover as much as possible.
  • the RRU radio signals of the cells where the macro-diversity branches are located can be exchanged to the same channel processing unit to achieve softer handover processing.
  • the candidate cells should be considered to include the wireless The channel processing unit of the cell where the link is located. This happens mainly due to the large number of active users and traffic in the vicinity of the basic cell where the channel processing unit belongs.
  • the adjacent channel processing unit needs to be To share the excessive load, when there are multiple candidate cells that collectively include the channel processing unit of the cell where the wireless link is located and can provide the required processing resources, the channel processing unit with the smallest load is selected to achieve the load balancing of the channel processing unit;
  • the system has a short period of time When the traffic amount of »high extreme case, only the load provided by the non-adjacent sub-channel processing unit supporting process.
  • the specific implementation adopted is to make each channel process
  • the unit handles the wireless
  • the cells corresponding to the links are geographically adjacent as much as possible and concentrated in a certain area.
  • this preferred specific implementation manner is not intended to limit the technical solution for selecting the optimal channel processing unit of the newly added wireless link in the centralized hub of the present invention.
  • Other embodiments conceivable by those skilled in the art without spending creative labor should also be considered to fall within the protection scope of the present invention.
  • resource scheduling may be performed between the channel processing units according to the mid-to-long-term statistical results of the load of the channel processing unit in the centralized base station to balance each channel.
  • the processing load of the channel processing unit thereby achieving the purpose of maximizing the utilization of channel processing resources.
  • the present invention also provides a method for implementing load balancing of each channel processing unit.
  • the cell set based on the load sharing purpose of each channel processing unit is adaptively adjusted.
  • Candidate cell set so as to achieve the purpose of load balancing of each channel processing unit.
  • the instantaneous load of each channel processing unit in the centralized base station is statistically obtained to obtain the (average) load of each channel processing unit within a certain time range, And the total average load of all channel processing units is obtained by arithmetic average. If the load of a channel processing unit exceeds a certain threshold of the total average, the candidate cell set of adjacent channel processing units of the channel processing unit is appropriately increased.
  • the added cell is a cell in the basic cell set of the channel processing unit that is geographically adjacent to the cell in the candidate cell set of the corresponding adjacent channel processing unit, and each adjacent channel processing unit candidate
  • the increase of the cell set also depends on the respective load, that is, the candidate cell set of the adjacent channel processing unit with the larger load increases less, and the candidate cell set of the adjacent channel processing unit with the smaller load increases more; meanwhile,
  • the candidate cell set of the channel processing unit is appropriately reduced, and the reduction depends on the load of each adjacent channel processing unit, that is, if the load of one of the adjacent channel processing units is large, the candidate cell set in the The reduced cells belonging to the basic channel set of the adjacent channel processing unit are smaller. If the load of one of the adjacent channel processing units is small, the reduced number of cells in the candidate cell set belonging to the basic channel set of the adjacent channel processing unit. There are many communities.
  • Fig. 7 (a) is a schematic diagram of the first case.
  • a centralized base station includes three channel processing units A, B, and C, respectively corresponding to the basic cells A, B, and C. If the load of the channel processing unit B exceeds a certain average threshold, based on In the above one preferred solution, the candidate cell set of the adjacent channel processing unit and C will increase, and the candidate cell set of the channel processing unit B will decrease.
  • the load of the channel processing unit A is greater than that of the channel processing unit C, Load, the increase of the candidate cell set of channel processing unit A is smaller than the increase of the candidate cell set of channel processing unit C, and the cells belonging to the basic cell set of channel processing unit A that are reduced in the candidate cell set of channel processing unit B belong more There are many cells in the basic cell set of the channel processing unit C.
  • the instantaneous load of each channel processing unit in the centralized base station is statistically obtained to obtain the (average) load of each channel processing unit within a certain time range.
  • the total average load of all channel processing units (same as the processing in the first case above), if the load of a channel processing unit is below a certain threshold of the total average, the candidate cell set of the channel processing unit is appropriately increased, The increase depends on the load of each adjacent channel processing unit, that is, if the load of one of the adjacent channel processing units is large, the cells added to its candidate cell set belong to the basic cell set of the adjacent channel processing unit.
  • the candidate cell set of the adjacent channel processing unit of the channel processing unit is appropriately reduced, and the reduction depends on each adjacent channel.
  • the load of the processing unit that is, the candidate cell set of the adjacent channel processing unit with a larger load is reduced more, and the candidate cell set of the adjacent channel processing unit with a smaller load is reduced.
  • Fig. 7 (b) is a schematic diagram of the second case.
  • a centralized base station includes three channel processing units A, B, and C, which respectively correspond to the basic cells A, B, and C. If the load of the channel processing unit B is lower than a certain threshold of the total average, based on the second preferred solution, The candidate cell set of its adjacent channel processing unit, C will decrease, while the candidate cell set of channel processing unit B will increase.
  • the load of channel processing unit A is less than the load of channel processing unit (:, then channel processing unit A
  • the reduction amount of the candidate cell set is smaller than the reduction amount of the candidate cell set of the channel processing unit C, and the cells belonging to the basic cell set of the channel processing unit A added to the candidate cell set of the channel processing unit B belong to the channel processing unit C more There are many cells in the basic cell set.
  • the parameters used to determine the degree of load of the channel processing unit may also select other suitable Judgment parameters.
  • the threshold used when judging that the load of a channel processing unit needs to be adjusted it can also be set by a technician according to the actual situation.
  • a corresponding optimal channel processing unit selection may be set in the centralized base station.
  • a selection component is configured to select an optimal channel processing unit for a newly added wireless link, so as to complete resource optimization allocation in the centralized base station.
  • the optimal channel processing unit selection component may be implemented by various well-known function modules, and may be provided in, for example, the MU 10 shown in FIG. 3, or may be provided outside the centralized base station, and so on.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

L'invention concerne un procédé d'attribution des voies dans une station de base (BS) centralisée, consistant à sélectionner l'unité de traitement de voie optimale pour chaque liaison de radiocommunication individuelle nouvellement ajoutée, de telle manière que tous les traitements aux voies se rapportant à chaque nouvelle voie de radiocommunication ajoutée soient réalisés dans l'unité de traitement de voie optimale correspondante, L'invention se rapporte également à un procédé permettant de répartir les ressources de voies de manière adaptative et d'équilibrer la charge en complétant les attributions de voies, et à une station de base centralisée permettant la mise en oeuvre du procédé d'attribution des voies décrit. Ce procédé permet ainsi l'attribution de chaque voie de radiocommunication nouvellement ajoutée (établissement d'une nouvelle liaison et addition en macro-diversité) à une unité de traitement optimale, et son traitement par cette dernière, assurant ainsi une exploitation maximale des ressources de traitement de voies.
PCT/CN2004/000623 2004-06-10 2004-06-10 Procede d'attribution des ressources et signaux de routage dans une station de base (bs) centralisee WO2005122610A1 (fr)

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PCT/CN2004/000623 WO2005122610A1 (fr) 2004-06-10 2004-06-10 Procede d'attribution des ressources et signaux de routage dans une station de base (bs) centralisee
JP2007526163A JP4510888B2 (ja) 2004-06-10 2004-06-10 中央化された基地局におけるリソース分配および信号ルーティング方法
CNB2004800431435A CN100551154C (zh) 2004-06-10 2004-06-10 集中式基站的资源分配与信号路由方法

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CN104581825A (zh) * 2013-10-18 2015-04-29 中兴通讯股份有限公司 资源状态获取方法、装置及系统

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