WO2017118188A1 - Procédé et système d'attribution de ressources spectrales - Google Patents

Procédé et système d'attribution de ressources spectrales Download PDF

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Publication number
WO2017118188A1
WO2017118188A1 PCT/CN2016/104075 CN2016104075W WO2017118188A1 WO 2017118188 A1 WO2017118188 A1 WO 2017118188A1 CN 2016104075 W CN2016104075 W CN 2016104075W WO 2017118188 A1 WO2017118188 A1 WO 2017118188A1
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WO
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Prior art keywords
mobile communication
frequency
frequency point
communication system
shared
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PCT/CN2016/104075
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English (en)
Chinese (zh)
Inventor
张耀
王海峰
刘领
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中兴通讯股份有限公司
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Publication of WO2017118188A1 publication Critical patent/WO2017118188A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
    • H04W16/10—Dynamic resource partitioning

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method and system for allocating spectrum resources.
  • Spectrum resources are the key resources of the Global System for Mobile Communication (GSM) and Long Term Evolution (LTE) wireless communication systems.
  • GSM and LTE each Use its own proprietary band resources, as shown in Figure 1, a total of 15M bandwidth, GSM 7.8M, LTE 5M, intermediate 2.2M protection bandwidth.
  • the LTE proprietary bandwidth is in the middle, the GSM proprietary bandwidth is on both sides, the overlapping part is co-scheduled, GSM is preferred, and the GSM notifies the LTE in real time when the frequency is changed.
  • the LTE can use or release the shared frequency resource during the RB scheduling.
  • the LTE bandwidth must be It is continuously extended to both sides in units of 180K, and the 180K scheduling block is called an RB scheduling block.
  • a frequency point of GSM is 200k bandwidth.
  • GSM Global System for Mobile Communications
  • LTE 180K LTE 180K
  • GSM one frequency may affect 3 RB
  • the RB resources affected are more, the multiple GSM traffic is not uniform, and the cell release frequency cannot be coordinated to reach the continuous frequency point, thereby failing to cause the LTE cell to have a small probability of expanding the bandwidth and the spectrum resource utilization rate is low.
  • the present invention provides a method and a system for allocating spectrum resources, which are used to solve the problem that the probability of expanding bandwidth of an LTE cell is small and the utilization of spectrum resources is low in the prior art.
  • a method of allocating spectrum resources including:
  • the static carrier frequency is allocated to the first mobile communication system cell, where the static carrier frequency is a carrier frequency having a proprietary frequency spectrum and a fixed frequency point;
  • the dynamic carrier frequency and the shared frequency point are allocated to the first mobile communication system cell, including:
  • the shared frequency point set is retrieved
  • the shared frequency points are allocated to the first mobile communication system cell from the inactive shared frequency points according to the order in which the interference values are small to large.
  • the preset calculation manner is as follows:
  • Uplink interference uplink interference generated by the upper/lower adjacent frequency of the first mobile communication system + uplink interference generated by the same frequency in each adjacent neighboring area + uplink interference generated by the upper/lower adjacent frequency of each adjacent neighboring area;
  • Downlink interference downlink interference generated by the upper/lower adjacent frequency of the first mobile communication system cell + downlink interference generated by the same frequency in each interference neighboring area + downlink interference generated by the upper/lower adjacent frequency of each interference neighboring area;
  • Interference value uplink interference + downlink interference.
  • the method further includes:
  • the allocated shared frequency point service is Migrate to the first shared frequency and release the assigned shared frequency.
  • the method further includes:
  • the static carrier frequency of the first mobile communication system cell When the static carrier frequency of the first mobile communication system cell is in an idle state, the service on the dynamic carrier frequency is migrated to an idle static carrier frequency, and the dynamic allocation for the first mobile communication system cell is released. Carrier frequency and shared frequency at dynamic carrier frequency.
  • the method further includes:
  • the method further includes:
  • the broadcast information is output to inform the frequency resource resources that other mobile communication cells have occupied.
  • the method further includes:
  • a system for allocating spectrum resources including:
  • Comparing a module configured to compare the current traffic with a first preset threshold
  • a processing module configured to allocate a static carrier frequency to the first mobile communication system cell when the current traffic volume is less than a first preset threshold, when the current traffic volume is greater than a first preset threshold, And allocating a dynamic carrier frequency and a shared frequency point to the first mobile communication system cell, wherein the static carrier frequency is a carrier frequency having a proprietary frequency spectrum and a fixed frequency point, and the shared frequency point is the first mobile communication system And the frequency resource used by the second mobile communication system is shared.
  • the processing module is configured to: when the current traffic volume is greater than the first preset threshold, retrieving the shared frequency point set; and calculating, by using a preset calculation manner, the enabled frequency point pair to the sharing Interference values generated by the shared frequency points in the frequency point set; all the interference values are sorted in order from small to large; according to the interference value from small to large, from the standby shared frequency points, the first The mobile communication system cell allocates a shared frequency point.
  • the processing module is further configured to: when detecting the idle first shared frequency point, determine whether the first shared frequency point is far from the cell center frequency point of the second mobile communication system; if yes, obtain the Enabling an interference value of the frequency point to the first shared frequency point; if the frequency value of the enabled frequency point is less than the frequency of the enabled frequency point pair, the shared allocation has been allocated for the first mobile communication system cell The interference value of the frequency point, the service of the allocated shared frequency point is migrated to the first shared frequency point, and the allocated shared frequency point is released.
  • the processing module is further configured to detect whether a static carrier frequency of the first mobile communication system cell is in an idle state; when the static carrier frequency of the first mobile communication system cell is in an idle state, The service on the dynamic carrier frequency is migrated to the idle static carrier frequency, and the dynamic carrier frequency allocated for the cell of the first mobile communication system and the shared frequency point under the dynamic carrier frequency are released.
  • the processing module is further configured to: exist in a second shared frequency point adjacent to the second mobile communication cell allocated to the first mobile communication system cell, and away from the When there is no service in the third shared frequency point of the second mobile communication system cell, the service on the second shared frequency point is moved to the third shared frequency point, and the second shared frequency point is released.
  • the processing module is further configured to generate broadcast information for indicating the allocated shared frequency point, and output the broadcast information to notify other mobile communication cells that the occupied frequency resource is occupied.
  • the processing module is further configured to obtain an attenuation value of the configured dynamic carrier frequency, and reduce the transmit power of the dynamic carrier frequency according to the configured attenuation value to reduce the dynamic carrier frequency and the static carrier frequency. And interference between dynamic carrier frequencies.
  • Another embodiment of the present invention provides a computer storage medium storing execution instructions for performing the method in the above embodiments.
  • the current traffic volume of the cell of the first mobile communication system is obtained, and the current traffic volume is compared with the first preset threshold. If the current traffic volume is less than the first preset threshold, the first traffic is the first mobile terminal.
  • the communication system cell allocates a static carrier frequency, and if the current traffic volume is greater than the first preset threshold, the dynamic carrier frequency and the shared frequency point are allocated to the first mobile communication system cell, that is, the shared frequency point is in the first mobile communication.
  • the system traffic When the system traffic is large, it is used when the traffic is small, so it can be used when the traffic is small, so that the shared frequency can be vacated to the second mobile communication system, that is, it is used by the LTE mobile communication cell, thereby improving
  • the probability of the LTE cell expanding the bandwidth also makes the spectrum resources fully utilized.
  • FIG. 1 is a flowchart of a method for allocating spectrum resources according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a system for allocating spectrum resources according to an embodiment of the present invention.
  • the embodiment of the present invention provides a method for allocating spectrum resources, and the method is applied to the first mobile communication system cell and the first In the mobile communication system cell, the method includes: acquiring a current traffic volume of the first mobile communication system cell, and entering the current traffic volume with the first preset threshold For comparison, if the current traffic is less than the first preset threshold, the static carrier frequency is allocated to the first mobile communication system cell, and if the current traffic is greater than the first preset threshold, the first mobile communication system cell is The dynamic carrier frequency and the shared frequency point are allocated, that is, the shared frequency point is used when the first mobile communication system has a large amount of traffic, and when the traffic volume is small, the use is stopped, so that the shared frequency point can be empty. It is used by the second mobile communication system, that is, it is used by the LTE mobile communication cell, thereby increasing the probability that the LTE cell expands the bandwidth, and also making the
  • FIG. 1 is a flowchart of a method for allocating spectrum resources according to an embodiment of the present invention, where the method includes:
  • S104 Allocate a dynamic carrier frequency and a shared frequency point for the first mobile communication system cell.
  • the first mobile communication system cell may be a GSM cell
  • the second mobile communication system cell may be an LTE cell.
  • other cells may be used.
  • the cell under the mobile communication system is not specifically limited herein.
  • a GSM cell and an LTE cell are used in the specific description of the embodiments of the present invention.
  • the base station controller (English: Base Station Controller, BSC for short) measures the frequency of a set of overlapping parts with LTE bandwidth, which is called a shared frequency point set, as shown in Table 1:
  • SharePoolId [f1, f2, f3, f4, f5, f6, f7, f8..] characterizes the shared frequency point set, and also includes the LTE cell in Table 1, as shown in Table 1, L1, L2, L3 . Also included in Table 1 are GSM cells, such as G1, G2, and G3 in Table 1.
  • the static carrier frequency of the GSM cell is configured, the static carrier frequency uses the dedicated bandwidth, and the dedicated frequency point resource is used, and is a dedicated spectrum resource of the GSM cell, such as trx1 in Table 1.
  • the GSM cell preferentially allocates a static carrier frequency, and when the static carrier frequency cannot meet the service demand, the dynamic carrier frequency is allocated.
  • the dynamic carrier frequency is a carrier frequency resource shared by the GSM cell and the LTE cell, such as D_trx1 and D_trx2 in Table 1.
  • the shared frequency is shared.
  • the point will be allocated to the corresponding cell for use, and the GSM cell preferentially allocates a static carrier frequency, and when the static carrier frequency cannot meet the service demand, the dynamic carrier frequency is allocated.
  • the current traffic volume of the GSM cell is obtained, and then the traffic volume is compared with a first preset threshold, where the first preset threshold may be Make adjustments based on specific application areas or scenarios.
  • the GSM cell will be allocated static resources, so that the GSM cell uses the static spectrum resource to process the current service, thereby avoiding the GSM cell.
  • the dynamic spectrum is occupied, so that the shared frequency point in the dynamic spectrum resource can be used by the LTE cell adjacent to the GSM cell, thereby increasing the probability of the LTE cell expanding the bandwidth, and also making the spectrum resource fully utilized.
  • the dynamic carrier frequency is enabled, for example, D_trx2 in Table 1 is used, and a frequency point is allocated from the shared frequency point set to the GSM cell to ensure normal GSM service processing.
  • the shared frequency point that satisfies the predetermined condition is selected first, and the condition is that the interference value satisfies the shared frequency point of the condition. That is, the interference value generated by the enabled frequency point pair to the shared frequency point to be enabled in the shared frequency point set is calculated, for example, the shared frequency point to be started is f1, f2, f3, and the shared frequency point to be enabled is f5, f6, Then you need to calculate the interference values caused by f1, f2, and f3 on f5 and f6.
  • Uplink interference uplink interference generated by the upper/lower adjacent frequency of the GSM cell + uplink interference generated by the same frequency in each adjacent neighboring area + uplink interference generated by the upper/lower adjacent frequency of each adjacent neighboring area;
  • Downlink interference downlink interference generated by the upper/lower adjacent frequency of the GSM cell+downlink interference generated by the same frequency in each adjacent interfering area+downlink interference generated by the upper/lower adjacent frequency of each interfering neighboring area;
  • Interference value uplink interference + downlink interference.
  • the interference value After the interference value is obtained, all the interference values are sorted in order from small to large, and the shared frequency point is allocated to the GSM cell in descending order, that is, the shared frequency point with the smallest interference value is selected as the GSM cell.
  • the shared frequency for example, the smallest interference caused by f5, select f5 to use.
  • the idle first shared frequency point when the idle first shared frequency point is detected, determining whether the first shared frequency point is a LTE cell center frequency point, and if yes, acquiring the enabled frequency point pair first shared frequency The interference value of the point, if the enabled shared frequency point is less than the interference value of the shared frequency point of the enabled frequency point pair and the GSM cell, the allocated shared frequency point service is migrated to the first Share the frequency points and release the assigned shared frequency points.
  • the shared frequency point allocated by the G1 cell is f1
  • the shared frequency point allocated by the G2 cell is f3.
  • the shared frequency point f3 is detected to be idle, and f3 is a shared frequency point away from the LTE center frequency point.
  • the interference value of the shared frequency points f2, f4, and f5 to f1 is used, and the interference value of the shared frequency points f2, f4, and f5 to f3 is calculated. If the interference value of f3 is smaller than the interference value of f1, the frequency point f1 is shared.
  • the traffic on the traffic migrates to f3 and releases f1, so that the shared frequency f1 can be reserved for use by the LTE cell adjacent to the GSM cell, thereby increasing the probability of extending the bandwidth of the LTE cell adjacent to the GSM cell.
  • whether the static carrier frequency of the GSM cell is in an idle state is detected, and when the static carrier frequency of the GSM cell is in an idle state, the service on the dynamic carrier frequency is migrated to the idle static carrier frequency. And release the dynamic carrier frequency allocated for the GSM cell and the shared frequency point under the dynamic carrier frequency.
  • a shared frequency point f1 when a shared frequency point f1 is allocated to the GSM cell, the traffic of the current GSM cell decreases, and the static carrier frequency is idle, the service sharing the frequency point f1 is migrated to the static carrier frequency for processing, and The shared frequency point f1 is released, so that the idle shared frequency point f1 can be provided to the LTE cell adjacent to the GSM cell, thereby further increasing the probability of the LTE cell expanding the bandwidth, and also making the spectrum resource fully utilized.
  • a single GSM cell uses a service at a second shared frequency point adjacent to the LTE cell allocated for the GSM cell, and there is no service at the third shared frequency point away from the LTE cell.
  • the service on the second shared frequency point is migrated to the third shared frequency point, and the second shared frequency point is released.
  • a single GSM cell enables multiple dynamic carrier frequencies, such as G1 enables D_trx2, D_trx3, and the frequency points are f1, f4, respectively
  • D_trx3 when there is traffic on the dynamic carrier frequency (D_trx3) near the LTE center frequency, detection Whether there is a free channel on the dynamic carrier frequency far from LTE, and if possible, the traffic on the near carrier frequency can be smoothly migrated to the near carrier frequency (D_trx2), and the shared frequency point f4 is gradually idled to the GSM cell phase. Neighboring LTE is used.
  • broadcast information indicating the allocated shared frequency point is generated, and the broadcast information is output.
  • broadcasting information it is used to inform other mobile communication cells of the occupied frequency resources, so as to prevent other mobile communication cells from overlapping and using the frequency resources.
  • the power of the dynamic carrier frequency can be preferentially allocated to the original LTE cell.
  • the shared frequency point is obtained by obtaining the attenuation value of the configured dynamic carrier frequency, and reducing the transmission power of the dynamic carrier frequency according to the configured attenuation value, so as to reduce the interference value between the dynamic carrier frequency and the static carrier frequency and between the dynamic carrier frequencies.
  • the dynamic carrier frequency reduction power mode is adopted, that is, a certain attenuation is performed on the basis of the maximum carrier power of the dynamic carrier frequency, on the one hand, the interference to the LTE cell is reduced; on the other hand, when the shared frequency point is allocated, the dynamic load is dynamically loaded. Interference between frequency, dynamic carrier frequency and static carrier frequency will be relatively small, and it is easy to allocate frequency resources close to the LTE center frequency.
  • the attenuation value of the dynamic carrier frequency is configured in units of the GSM cell, and the base station performs the attenuation downlink transmission power on the basis of the configured maximum attenuation power according to the configured attenuation value.
  • the traffic allocation strategy needs to be adjusted: when static When the carrier frequency load is low, the static carrier frequency is preferentially allocated, and the dynamic carrier frequency is released. When the static carrier frequency load is high, it is necessary to leave some room for some terminals with larger TA and smaller level; TA is larger and electric. A flatter mobile phone can be prioritized on a dynamic carrier frequency.
  • the dynamic carrier frequency power is small when the channel resources are allocated to the terminal after power reduction, and the condition is not necessarily met. Therefore, the static carrier frequency must have a certain idle channel, and when the static carrier frequency traffic increases. Select a terminal with a smaller TA and a larger level to migrate to the dynamic carrier frequency to solve the problem of dropped calls due to poor signal quality after power reduction.
  • FIG. 2 is a schematic structural diagram of a system for allocating spectrum resources according to an embodiment of the present invention. The system includes:
  • the obtaining module 201 is configured to acquire a current traffic volume of the first mobile communication system cell
  • the comparing module 202 is configured to compare the current traffic volume with a first preset threshold
  • the processing module 203 is configured to: when the current traffic volume is less than the first preset threshold, allocate a static carrier frequency to the first mobile communication system cell, when the current traffic volume is greater than the first preset threshold And allocating a dynamic carrier frequency and a shared frequency point to the first mobile communication system cell, where the static carrier frequency is a carrier frequency having a proprietary frequency spectrum and a fixed frequency point, and the shared frequency point is the first mobile communication
  • the static carrier frequency is a carrier frequency having a proprietary frequency spectrum and a fixed frequency point
  • the shared frequency point is the first mobile communication
  • the system and the second mobile communication system share the used frequency resources.
  • the processing module 203 is specifically configured to: when the current traffic volume is greater than the first preset threshold, the shared frequency point set is retrieved; and the preset calculation manner is used to calculate The interference value generated by the frequency point to the shared frequency point to be enabled in the shared frequency point set is enabled; all the interference values are sorted according to the order from small to large; the standby value is sorted from standby to small according to the interference value.
  • the shared frequency point is allocated to the first mobile communication system cell in the frequency point.
  • the processing module 203 is further configured to: determine, when the first shared frequency point that is idle is detected, whether the first shared frequency point is far from the cell center of the second mobile communication system a frequency point; if yes, obtaining an interference value of the enabled frequency point to the first shared frequency point; if the frequency value of the enabled frequency point is less than the enabled frequency point pair, the number is The interference value of the shared frequency point allocated by the cell of the mobile communication system, the service of the allocated shared frequency point is migrated to the first shared frequency point, and the allocated shared frequency point is released.
  • the processing module 203 is further configured to: detect whether a static carrier frequency of the first mobile communication system cell is in an idle state; and statically load the cell in the first mobile communication system.
  • the frequency is in the idle state, the service on the dynamic carrier frequency is migrated to the idle static carrier frequency, and the dynamic carrier frequency allocated for the cell of the first mobile communication system and the shared frequency point under the dynamic carrier frequency are released.
  • the processing module 203 is further configured to: before the second mobile communication cell, the second shared frequency allocated to the first mobile communication system cell When there is a service in the point, and there is no service in the third shared frequency point away from the cell of the second mobile communication system, the service on the second shared frequency point is moved to the third shared frequency point, and the The second shared frequency.
  • the processing module 203 is further configured to generate broadcast information for indicating the allocated shared frequency point, and output the broadcast information to notify other mobile communication cells that the occupied frequency is occupied. Point resources.
  • the processing module 203 is further configured to obtain an attenuation value of the configured dynamic carrier frequency, and reduce the transmit power of the dynamic carrier frequency according to the configured attenuation value to reduce Interference between dynamic carrier frequency and static carrier frequency and between dynamic carrier frequencies.
  • Embodiments of the present invention also provide a storage medium.
  • an execution instruction is stored in the storage medium, and the execution instruction is used to execute the foregoing method.
  • the foregoing storage medium may include, but is not limited to, a USB flash drive, a Read-Only Memory (ROM), and a Random Access Memory (RAM).
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • the method and system for allocating spectrum resources provided by the embodiments of the present invention have the following beneficial effects: the shared frequency point is used when the first mobile communication system has a large amount of traffic, and when the traffic volume is small, the use is stopped. In this way, the shared frequency point can be vacated to the second mobile communication system, that is, used by the LTE mobile communication cell, thereby increasing the probability of the LTE cell expanding the bandwidth, and also making the spectrum resource fully utilized.

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

Abstract

La présente invention concerne un procédé et un système d'attribution de ressources spectrales. Le procédé consiste à : obtenir le trafic téléphonique actuel d'une première cellule d'un système de communication mobile ; comparer le trafic téléphonique actuel avec un premier seuil prédéfini ; si le trafic téléphonique actuel est inférieur au premier seuil prédéfini, attribuer une fréquence porteuse statique à la première cellule du système de communication mobile ; et si le trafic téléphonique actuel est supérieur au premier seuil prédéfini, attribuer une fréquence de porteuse dynamique et un point à fréquence partagée à la première cellule du système de communication mobile. Le point à fréquence partagée est utilisé lorsque le trafic du premier système de communication mobile est relativement élevé, mais n'est pas utilisé lorsque le trafic est relativement bas. De cette manière, davantage de points à fréquence partagée peuvent être libérés en vue d'être utilisés par un second système de communication mobile, c'est-à-dire en vue d'être utilisés par une cellule de communication mobile LTE, ce qui améliore la probabilité d'extension de bande passante par la cellule LTE, et permet également d'utiliser pleinement les ressources spectrales.
PCT/CN2016/104075 2016-01-05 2016-10-31 Procédé et système d'attribution de ressources spectrales WO2017118188A1 (fr)

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CN112954699A (zh) * 2019-12-11 2021-06-11 大唐移动通信设备有限公司 无线通信的频谱共享方法、装置、电子设备及存储介质

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CN107835515B (zh) * 2017-12-18 2021-05-25 海能达通信股份有限公司 一种分配带宽资源的方法及基站
CN113347696B (zh) * 2020-03-02 2023-04-11 华为技术服务有限公司 一种功率分配方法及装置
CN113766515B (zh) * 2020-06-05 2023-10-27 大唐移动通信设备有限公司 一种小区共享频段分配方法和装置
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CN112954699A (zh) * 2019-12-11 2021-06-11 大唐移动通信设备有限公司 无线通信的频谱共享方法、装置、电子设备及存储介质
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