WO2020125597A1 - Inter-carrier load adjustment method and device - Google Patents

Inter-carrier load adjustment method and device Download PDF

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Publication number
WO2020125597A1
WO2020125597A1 PCT/CN2019/125766 CN2019125766W WO2020125597A1 WO 2020125597 A1 WO2020125597 A1 WO 2020125597A1 CN 2019125766 W CN2019125766 W CN 2019125766W WO 2020125597 A1 WO2020125597 A1 WO 2020125597A1
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Prior art keywords
carrier
load
state
terminal device
carriers
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PCT/CN2019/125766
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French (fr)
Chinese (zh)
Inventor
龚磊
姚凤阳
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华为技术有限公司
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Publication of WO2020125597A1 publication Critical patent/WO2020125597A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/08Load balancing or load distribution
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453Resources in frequency domain, e.g. a carrier in FDMA
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/52Allocation or scheduling criteria for wireless resources based on load

Definitions

  • the present application relates to the field of communication technology, and in particular, to a method and device for adjusting load between carriers.
  • Universal Universal Mobile Telecommunications System (UMTS) networks are all multi-carrier networks, some sites are two-carrier networks, some sites are three-carrier networks, and at most sites are seven-carrier networks.
  • UMTS Universal Universal Mobile Telecommunications System
  • RRU radio remote units
  • the difference in the number of users that is, the unbalanced load between carriers, some carriers have more users, more power and codeword consumption, poor user experience, and some carriers have fewer users and low resource utilization.
  • the terminal device has the following user states in the network: idle state, CELL_PCH (a RRC connected mode, where either DCCH nor DTCH is available, only can use paging channel for current cell) state, CELL_DCH (a RRC connected mode) where Both DCCH and DTCH are available) and CELL_FACH (a RRC connected mode where DCN or DTCH is available, only can use cell-forward access channel) state. Similar to the CELL_PCH state, there is also a user state: URA_PCH (a RRC connected mode where DCN nor DTCH is available, can use paging channels for some cells) state. For the terminal device in the idle state, CELL_DCH and CELL_FACH state, there already exists a corresponding inter-carrier load adjustment scheme.
  • the camping strategy in the IDEL state (mainly the IDEL state random parking strategy), for example, the minimum access threshold for F1 carrier users is set to -18dB, and the minimum access threshold for F2 carrier users is set to -14dB, due to the threshold Manual setting is required.
  • the load conditions of different sites are different, and the load will change with the free and busy time, so it is impossible to give a reasonable and real-time setting plan.
  • the switching strategy mainly including direct retry decision (DRD) and load reshuffling (LDR) strategy
  • DDR direct retry decision
  • LDR load reshuffling
  • the F1 carrier user is forced to switch to the F2 carrier.
  • DDR direct retry decision
  • LDR load reshuffling
  • KPI key performance indicator
  • the terminal equipment is in the CELL_PCH state for a large amount of time, and the CELL_PCH state users account for more than 50%.
  • the idle state residence strategy is insufficient to adjust the inter-carrier load in a timely manner Reduce the negative gain brought by the subsequent switching process.
  • the present application provides an inter-carrier load adjustment method and device, so as to realize the inter-carrier load adjustment when the terminal device is in the CELL_PCH state or the URA_PCH state, so as to balance the load and ensure the provision of resources for subsequent terminal devices to perform service transmission.
  • a method for adjusting the load between carriers includes: detecting the load between multiple carriers in real time; when it is determined that the load difference between the first carrier and any one of the multiple carriers is greater than or equal to
  • the load threshold is selected, the terminal device in the first state on the first carrier is selected, and the first state includes the CELL_PCH state or the URA_PCH state; the second carrier is determined according to the selected terminal device in the first state; And sending a redirection command to the second carrier, where the redirection command is used to request that the terminal device in the first state is redirected to the second carrier, and the redirection command includes the second carrier Logo.
  • the terminal device when the terminal device is in the CELL_PCH state or the URA_PCH state, it is very likely to enter the service transmission process quickly, by detecting the load between multiple carriers in real time, when it is determined that the first carrier and any other carrier among the multiple carriers
  • the load difference of is greater than or equal to the load threshold
  • select the terminal device on the first carrier in the CELL_PCH state or URA_PCH state determine the second carrier, and redirect the terminal device to the second carrier.
  • the method further includes: releasing the connection between the terminal device and the network on the first carrier.
  • the terminal device after being redirected to the second carrier, the terminal device enters an idle state.
  • the determining the second carrier according to the selected terminal device in the first state includes: according to the number of selected terminal devices in the first state and the multiple The load on any one of the other carriers determines the second carrier.
  • the second carrier is the carrier with the smallest load among the multiple carriers.
  • redirecting the terminal device to the carrier with the smallest load is beneficial to load balancing.
  • an apparatus or device for adjusting an inter-carrier load which can implement the above-mentioned communication method in the first aspect.
  • the device for adjusting the load between carriers may be a chip or a wireless network controller.
  • the above method can be implemented by software, hardware, or corresponding software executed by hardware.
  • the structure of the device for adjusting the load between carriers includes a processor and a memory; the processor is configured to support the apparatus to perform the corresponding function in the above communication method.
  • the memory is used for coupling with a processor, which stores necessary programs (instructions) and/or data of the device.
  • the device for adjusting the load between carriers may further include a communication interface for supporting communication between the device and other network elements.
  • the device for adjusting the load between carriers may include a unit module that performs the corresponding action in the above method.
  • a processor and a transceiver device are included, and the processor is coupled to the transceiver device, and the processor is used to execute a computer program or instruction to control the transceiver device to receive and receive information. Send; when the processor executes the computer program or instruction, the processor is also used to implement the above method.
  • the transceiver device may be a transceiver, a transceiver circuit or an input-output interface.
  • the transceiver device is a transceiver circuit or an input-output interface.
  • the sending unit may be an output unit, such as an output circuit or a communication interface; and the receiving unit may be an input unit, such as an input circuit or a communication interface.
  • the sending unit may be a transmitter or a transmitter; the receiving unit may be a receiver or a receiver.
  • a computer-readable storage medium in which instructions are stored in the computer-readable storage medium, which when executed on a computer, causes the computer to execute the method described in the above aspects.
  • a computer program product containing instructions, which when executed on a computer, causes the computer to execute the method described in the above aspects.
  • Figure 1 is a schematic diagram of load adjustment between carriers based on different load balancing strategies
  • Figure 2 is a schematic diagram of the process of direct retry judgment
  • Figure 3 is a schematic diagram of the process of inter-frequency load balancing
  • FIG. 4 is a schematic flowchart of a method for adjusting an inter-carrier load according to an embodiment of the present application
  • 5 is a schematic diagram of terminal device redirection based on the CELL_PCH state
  • FIG. 6 is a schematic diagram of different load balancing strategies when the terminal device is in different states
  • FIG. 7 is a schematic diagram of a module structure of an apparatus for adjusting load between carriers provided by an embodiment of the present application.
  • the network in this application may be a UMTS network or other networks.
  • the network is a multi-carrier network. Each carrier or each frequency band corresponds to a cell.
  • the cells corresponding to these multiple carriers may belong to one network device, or may belong to multiple network devices, and the multiple network devices are controlled by a radio network controller (RNC).
  • RNC radio network controller
  • the network device may be a device that can communicate with the terminal device.
  • the network device may be any device with wireless transceiver function. Including but not limited to: base station NodeB, evolved base station eNodeB, base station in the fifth generation (5G) communication system, base station or network equipment in future communication system, access node in WiFi system, wireless relay Nodes, wireless backhaul nodes, etc.
  • the network device may also be a wireless controller in a cloud radio access network (CRAN) scenario.
  • the network device may also be a small station, transmission node (transmission reference point, TRP), and so on.
  • TRP transmission reference point
  • Terminal equipment is a device with wireless transceiver function, which can be deployed on land, including indoor or outdoor, handheld, wearable, or vehicle-mounted; it can also be deployed on the water, such as ships, etc.; it can also be deployed in the air, such as aircraft, Balloons and satellites are fine.
  • the terminal device may be a mobile phone, a tablet, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, and industrial control ( wireless terminal in industrial control, wireless terminal in self-driving, wireless terminal in remote medical, wireless terminal in smart grid, transportation safety Wireless terminals in smart cities, wireless terminals in smart cities, wireless terminals in smart homes, etc.
  • the embodiments of the present application do not limit the application scenarios.
  • Terminal equipment may sometimes be called user equipment (user equipment (UE), access terminal equipment, UE unit, mobile station, mobile station, remote station, remote terminal equipment, mobile device, terminal), wireless communication device, UE Agent or UE device, etc.
  • UE
  • “Multiple” refers to two or more. In view of this, in the embodiments of the present application, “multiple” may also be understood as “at least two”.
  • “And/or” describes the relationship of the related objects, indicating that there can be three relationships, for example, A and/or B, which can indicate: there are three cases of A alone, A and B at the same time, B alone.
  • the character "/”, unless otherwise specified, generally indicates that the related object is a "or" relationship.
  • the UE occupies dedicated channel resources and occupies more wireless resources, which is suitable for high-speed continuous data transmission.
  • the UE uses a common channel to send or receive data, which occupies fewer resources. Due to the resource limitations of RACH and FACH, the CELL_FACH state is suitable for low-speed data transmission.
  • the UE In the upstream direction, the UE cannot send signaling messages. If there is upstream data to be sent, you need to migrate to CELL_FACH or CELL_DCH through the CELL UPDATE process.
  • the UE uses discontinuous reception (DRX) technology to monitor the information on the PCH channel at a specific paging moment to receive paging. If the UE in the CELL_PCH state is in a WCDMA network, UTRAN can obtain the cell where the UE is currently located and page the UE within the range of the cell. After moving to a new cell, the UE needs to perform cell reselection through the CELL Update message.
  • DRX discontinuous reception
  • UTRAN can obtain the UTRAN registration area (URA) where the UE is currently located and page the UE within the range of the URA. After moving to a new URA, the UE needs to make a URA change through the URA UPDATE message.
  • URA UTRAN registration area
  • the existing network requires many adjustment actions to adjust the carrier load and meet customer demands.
  • a tiered strategy for resident services may be adopted, for example, divided into F1-Fn carriers. All carriers support R99 services and high-speed packet access (HSPA) services ("H services" for short), and F1 preferentially carries R99 services, and F2, F3, F4, ..., Fn preferentially bear H services.
  • HSPA high-speed packet access
  • CELL_PCH state Users in the idle state, CELL_PCH state, and URA_PCH state tend to reside in F1. In order to make the idle users in F2, F3, F4, ..., Fn cells reselect to F1 more quickly, users in idle state, CELL_PCH state and URA_PCH state tend to camp on F1. CELL_FACH users are handled separately and reside on the original carrier.
  • Voice services and combined services are directly accessed in the source cell (the cell that the user accesses in the RRC phase).
  • load-based inter-frequency handover includes LDR strategy and so on.
  • the coverage-based inter-frequency handover may specifically be a coverage-based inter-frequency handover.
  • FIG. 1 it is a schematic diagram of load adjustment between carriers based on different load balancing strategies.
  • F1 preferentially carries R99 services.
  • F2, F3, F4...Fn preferentially bear H services.
  • the UE performing H service on F2, F3, F4...Fn enters the idle state, it can switch to F1.
  • This switching strategy can be referred to as preferential camping; when the idle UE on F1 connects When entering the network to enter the connected state, you can blindly switch (blind handover, blind HO) to any carrier in F2, F3, F4...Fn; if F2, F3, F4...Fn is overloaded, the UE in the connected state can also Inter-freq HO from any carrier in F2, F3, F4...Fn where it is currently located to any other inter-frequency carrier in F2, F3, F4...Fn, as shown in Figure 1, Fn, The connected UE on F4 switches to F3.
  • the idle state dwelling strategy parameters shown in Table 1 to Table 2 below need to be manually set and carried to the UE through system messages.
  • the UE cannot obtain each carrier load on the network side at this time.
  • the UE is based on
  • the following parameters are configured and combined with coverage and other conditions to complete the reselection and camping between carriers.
  • the following Tables 1 to 2 describe the switching of F1 to F3 carriers or cells as an example, and the switching of other carriers can refer to the settings of these parameters.
  • IdleQoffset2sn represents a parameter that forces a tendency to reside.
  • DRD refers to the process in which the RNC selects a suitable cell for the UE to access, and is one of the methods for the UE to access the network.
  • Figure 2 is a schematic diagram of the process of direct retry decision. As shown in Figure 2, the DRD process includes:
  • the RNC triggers DRD according to relevant conditions.
  • the RNC screens the DRD candidate neighboring cells that meet the conditions.
  • the RNC selects the target cell to make an access attempt.
  • the cell access failure processing includes: if the inter-frequency DRD fails, the inter-system DRD can be performed; if the inter-system DRD fails, the process ends.
  • the heterogeneous system refers to communication systems of different standards, such as GSM and LTE.
  • the inter-frequency load balancing feature supports switching some users to inter-frequency co-coverage cells when the cell is in the primary congestion state to reduce the load of the local cell. This feature is also called inter-frequency load switching.
  • Figure 3 is a schematic diagram of the process of inter-frequency load balancing.
  • the process of LDR inter-frequency load balancing includes:
  • the RNC triggers LDR inter-frequency load balancing according to relevant conditions (for example, whether the load threshold of each resource of the cell reaches the LDR threshold).
  • the cell is in the CELL_FACH state, and the RNC screens qualified users to perform inter-frequency handover.
  • LDR is aimed at a state of resource congestion, and releasing this state requires some actions to achieve.
  • Inter-frequency handover is one of these actions.
  • the function of LDR inter-frequency load balancing is turned on, the inter-frequency switching action is triggered.
  • the LDR action is completed, and the RNC determines whether to execute the next LDR action based on the current load.
  • the camping strategy in the idle state (mainly there is a random camping strategy for idle users), for example, the minimum access threshold for F1 carrier users is set to -18dB, and the minimum access threshold for F2 carrier users is set to -14dB.
  • the threshold needs to be set manually, the load conditions of different sites are different, and the load will change with the free and busy time, so a reasonable and real-time setting scheme cannot be given.
  • Switching strategies in the business process mainly DRD and LDR strategies
  • F1 carrier users are forced to switch F1 carrier to F2 carrier during a call or during web browsing.
  • delay will first be introduced during the handover process, and for the blind handover process, due to the difference in coverage between carriers, the handover failure will cause the KPI deterioration problem, and the handover in the business process will result in a poor user experience (The switching process introduces mute, noise and delayed experience).
  • PCH state users account for more than 50%, idle state parking strategy adjusts inter-carrier RRC times and RAB phase DRD adjustment times are insufficient to adjust inter-carrier load in a timely manner, through PCH state redirection strategy combined with inter-carrier load (CELL_PCH state, RNC can Obtain the inter-carrier load situation) Adjust the idle state distribution of the redirected user between carriers, and can reduce the negative gain brought by the subsequent handover process.
  • the PCH state includes the CELL_PCH and URA_PCH states.
  • the technical solution of the present application is also applicable to the URA_PCH state, and the implementation process is the same.
  • FIG. 4 is a schematic flowchart of a method for adjusting an inter-carrier load according to an embodiment of the present application, specifically, the inter-carrier load balancing based on the PCH state.
  • the RNC can adjust the load between carriers, and of course it can be other controllers or network devices. This embodiment is described by taking the RNC adjusting the inter-carrier load as an example.
  • the method includes the following steps:
  • An office in the network can include multiple carriers, for example, an office can be up to 7 carriers.
  • RNC detects the load between each carrier in real time. The load between the carriers is the difference between the loads of the two carriers.
  • the first The states include CELL_PCH state or URA_PCH state.
  • inter-carrier load threshold there is an inter-carrier load threshold.
  • the load difference between one carrier (the first carrier) and any other carrier is greater than or equal to the threshold.
  • the adjustment of the inter-carrier load is triggered. For example, F1 load-F2 load> inter-carrier load threshold, then trigger F1 load adjustment.
  • the CELL_PCH state or the URA_PCH state means that the UE inactivity timer is not released to the idle state without timeout and does not trigger the state transition.
  • Selecting UEs in the CELL_PCH state or URA_PCH state may be selecting all UEs in the CELL_PCH state or URA_PCH state on the first carrier, or may select UEs in the CELL_PCH state or URA_PCH state on the first carrier. There are many strategies to choose from, and there are no restrictions here.
  • the second carrier is the carrier after the UE in the CELL_PCH state or the URA_PCH state is switched. To determine the second carrier, it is necessary to ensure that the UE in the CELL_PCH state or URA_PCH state is switched to the second carrier, and after entering the connected state, the second carrier can ensure the resource allocation of the UE on it and ensure the normal operation of services. In other words, it is determined whether the second carrier satisfies the load sharing condition.
  • S403 includes: determining the second carrier according to the selected number of the terminal devices in the first state and the load on any other carrier among the multiple carriers.
  • the second carrier is the carrier with the smallest load among the multiple carriers. That is, consider the number of UEs that are about to switch to the CELL_PCH state or URA_PCH state. If there are too many UEs, consider whether the second carrier is the best-carrying carrier, for example, whether it is the least-loaded carrier other than the first carrier Of the carrier.
  • the terminal device After redirecting to the second carrier, the terminal device enters an idle state.
  • the following step may be further included: releasing the connection between the terminal device and the network on the first carrier.
  • the UE in the CELL_PCH state is redirected, the UE in the CELL_PCH state on F1 is redirected to the F2 carrier, and the network connection of the UE in the CELL_PCH state on F1 and F2 is disconnected.
  • the UE in the CELL_PCH state enters the idle state. After adjustment, there are two UEs on F1 and F2, and the load balance is achieved.
  • RNC monitors the load difference between carriers in real time, and adjusts the threshold through the set load. When the load difference between carriers exceeds the set threshold, the RNC selects the target frequency point through the load discrimination result between carriers, and then selects the CELL_PCH state user to trigger the RRC release redirect function to For the target frequency point, when the user accesses the network again, the target frequency point resource will be consumed, thereby reducing the purpose of the current cell load.
  • the inter-carrier load adjustment process by introducing the CELL_PCH state inter-carrier load judgment process and selecting the CELL_PCH state user to trigger the RRC release redirection function based on the inter-carrier load discrimination result, the inter-carrier load is balanced by adjusting the inter-carrier user residence
  • the CELL_PCH state is similar to the IDEL state for users, and the load adjustment action at this time will not affect the user experience or the network KPI.
  • a terminal device when a terminal device is in the CELL_PCH state or URA_PCH state, it is very likely to quickly enter the service transmission process.
  • detecting the load between multiple carriers in real time when determining the first When the load difference between the carrier and any one of the multiple carriers is greater than or equal to the load threshold, select the terminal device on the first carrier in the CELL_PCH state or URA_PCH state, determine the second carrier, and redirect the terminal device to The second carrier.
  • an embodiment of the present application further provides an apparatus 7000 for adjusting the inter-carrier load, which can be applied to the above-mentioned diagram In the method shown in 4.
  • the device may be an RNC.
  • the device 7000 includes a detection unit 71, a selection unit 72, a determination unit 73, and a redirection unit 74, and may further include a release unit 75. among them:
  • the detection unit 71 is used to detect the load between multiple carriers in real time
  • the selection unit 72 is configured to select the terminal device in the first state on the first carrier when it is determined that the load difference between the first carrier and any one of the multiple carriers is greater than or equal to the load threshold,
  • the first state includes the CELL_PCH state or the URA_PCH state;
  • the determining unit 73 is configured to determine the second carrier according to the selected terminal device in the first state
  • a redirect unit 74 configured to send a redirect command to the second carrier, the redirect command is used to request that the terminal device in the first state is redirected to the second carrier, the redirect command Including the identification of the second carrier.
  • the releasing unit 75 is configured to release the connection between the terminal device and the network on the first carrier.
  • the terminal device after redirecting to the second carrier, the terminal device enters an idle state.
  • the determining unit 73 is configured to determine the second carrier according to the selected number of terminal devices in the first state and the load on any other carrier among the multiple carriers .
  • an apparatus for adjusting an inter-carrier load when a terminal device is in the CELL_PCH state or URA_PCH state, it is very likely to quickly enter the service transmission process.
  • detecting the load between multiple carriers in real time when determining the first When the load difference between the carrier and any one of the multiple carriers is greater than or equal to the load threshold, select the terminal device in the CELL_PCH state or URA_PCH state on the first carrier, determine the second carrier, and redirect the terminal device to The second carrier.
  • An embodiment of the present application further provides an inter-carrier load adjustment device, and the inter-carrier load adjustment device is used to perform the foregoing inter-carrier load adjustment method.
  • Part or all of the method for adjusting the inter-carrier load may be implemented by hardware or software.
  • the device for adjusting the load between carriers may be a chip or an integrated circuit in a specific implementation.
  • the device for adjusting the inter-carrier load when part or all of the method for adjusting the inter-carrier load in the above embodiment is implemented by software, includes: a memory for storing a program; a processor for executing the memory storage A program, when the program is executed, enables the device for adjusting the load between carriers to implement the method for adjusting the load between carriers provided in the above embodiments.
  • the device 8000 may include:
  • the receiver 81, the transmitter 82, the memory 83, and the processor 84 (the number of the processor 84 in the network device may be one or more, and one processor is taken as an example in FIG. 8).
  • the receiver 81, the transmitter 82, the memory 83, and the processor 84 may be connected through a bus or in other ways. In FIG. 8, connection through a bus is used as an example.
  • the processor 84 is used to perform the following steps:
  • the terminal device in the first state on the first carrier is selected, the first state includes CELL_PCH state or URA_PCH state;
  • the processor 84 is further configured to perform the following operation: release the connection between the terminal device and the network on the first carrier.
  • the terminal device after redirecting to the second carrier, the terminal device enters an idle state.
  • the processor 84 performs the step of determining the second carrier according to the selected terminal device in the first state, including: according to the number of selected terminal devices in the first state And the load on any one of the multiple carriers, to determine the second carrier.
  • the second carrier is the carrier with the smallest load among the multiple carriers.
  • the above memory may be a physically independent unit, or may be integrated with the processor.
  • the device for adjusting the inter-carrier load may also include only the processor.
  • the memory for storing the program is located outside the adjustment device for the load between the carriers, and the processor is connected to the memory through a circuit/wire to read and execute the program stored in the memory.
  • the processor may be a central processing unit (CPU), a network processor (NP), or a combination of CPU and NP.
  • CPU central processing unit
  • NP network processor
  • the processor may further include a hardware chip.
  • the hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof.
  • ASIC application-specific integrated circuit
  • PLD programmable logic device
  • the above PLD may be a complex programmable logic device (complex programmable logic device, CPLD), a field programmable logic gate array (field-programmable gate array, FPGA), a general array logic (generic array logic, GAL), or any combination thereof.
  • the memory may include volatile memory (volatile memory), such as random-access memory (RAM); the memory may also include non-volatile memory (non-volatile memory), such as flash memory (flash memory) , Hard disk drive (HDD) or solid-state drive (SSD); memory can also include a combination of the above types of memory.
  • volatile memory such as random-access memory (RAM)
  • non-volatile memory such as flash memory (flash memory) , Hard disk drive (HDD) or solid-state drive (SSD)
  • flash memory flash memory
  • HDD Hard disk drive
  • SSD solid-state drive
  • an inter-carrier load adjustment device when a terminal device is in the CELL_PCH state or URA_PCH state, it is highly likely that the terminal will quickly enter the service transmission process.
  • detecting the load between multiple carriers in real time when determining the first When the load difference between the carrier and any one of the multiple carriers is greater than or equal to the load threshold, select the terminal device in the CELL_PCH state or URA_PCH state on the first carrier, determine the second carrier, and redirect the terminal device to The second carrier.
  • the disclosed system, device, and method may be implemented in other ways.
  • the division of the unit is only a logical function division, and there may be other divisions in actual implementation.
  • multiple units or components may be combined or integrated into another system, or some features may be ignored, or not carried out.
  • the displayed or discussed mutual coupling, direct coupling, or communication connection may be indirect coupling or communication connection through some interfaces, devices, or units, and may be in electrical, mechanical, or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted through the computer-readable storage medium.
  • the computer instructions can be transferred from a website, computer, server or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) to another A website site, computer, server or data center for transmission.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device including one or more available medium integrated servers, data centers, and the like.
  • the available media may be read-only memory (ROM), or random access memory (RAM), or magnetic media, such as floppy disks, hard disks, magnetic tapes, magnetic disks, or optical media, such as, Digital versatile disc (DVD), or semiconductor media, for example, solid state disk (SSD), etc.

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Abstract

The present application discloses an inter-carrier load adjustment method and device. When in a CELL_PCH state or a URA_PCH state, a terminal apparatus is likely to enter a service transport process soon. The method comprises: detecting a load between multiple carriers in real time; when it is determined that a load difference between a first carrier and any other carrier among the multiple carriers is greater than or equal to a load threshold, selecting a terminal apparatus in the CELL_PCH state or the URA_PCH state on the first carrier; and determining a second carrier, and redirecting the terminal apparatus to the second carrier. A terminal apparatus in the CELL_PCH state or the URA_PCH state and using a carrier having a heavy load is redirected ahead of schedule to a carrier having lighter load, such that when the terminal apparatus enters a service transport process, the inter-carrier load is balanced, and adequate resources are allocated to the terminal apparatus, thereby ensuring normal operation of a service.

Description

一种载波间负载的调整方法及装置Method and device for adjusting load between carriers
本申请要求于2018年12月17日提交中国国家知识产权局,申请号为201811539829.3、发明名称为“一种载波间负载的调整方法及装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。This application requires the priority of the Chinese patent application submitted to the State Intellectual Property Office of China on December 17, 2018 with the application number 201811539829.3 and the invention titled "An Inter-Carrier Load Adjustment Method and Device", the entire content of which is cited by reference Incorporated in this application.
技术领域Technical field
本申请涉及通信技术领域,尤其涉及一种载波间负载的调整方法及装置。The present application relates to the field of communication technology, and in particular, to a method and device for adjusting load between carriers.
背景技术Background technique
全球通用移动通信系统(universal mobile telecommunications system,UMTS)网络都是多载波组网,有局点是两载波组网,有局点是三载波组网,最多有局点是七载波组网。但是在当前网络中,载波之间由于存在频点差异,射频拉远单元(radio remote unit,RRU)能力差异,天线型号、高度等差异,载波之间的覆盖范围也存在差异,导致载波之间的用户数差异,也就是载波间负载不均衡,有些载波用户数多,功率、码字消耗多,用户体验变差,有些载波用户数少,资源利用率低。Universal Universal Mobile Telecommunications System (UMTS) networks are all multi-carrier networks, some sites are two-carrier networks, some sites are three-carrier networks, and at most sites are seven-carrier networks. However, in the current network, due to differences in frequency between carriers, differences in capabilities of radio remote units (RRU), differences in antenna models, heights, etc., there are also differences in coverage between carriers, resulting in differences between carriers The difference in the number of users, that is, the unbalanced load between carriers, some carriers have more users, more power and codeword consumption, poor user experience, and some carriers have fewer users and low resource utilization.
终端设备在网络中存在以下几种用户状态:空闲(idle)态、CELL_PCH(a RRC connected mode where neither DCCH nor DTCH is available,only can use paging channel for current cell)态、CELL_DCH(a RRC connected mode where both DCCH and DTCH are available)态和CELL_FACH(a RRC connected mode where neither DCCH nor DTCH is available,only can use cell-forward access channel)态。与CELL_PCH态类似的,还存在一种用户状态:URA_PCH(a RRC connected mode where neither DCCH nor DTCH is available,can use paging channel for some cells)态。对于终端设备处于空闲态、CELL_DCH和CELL_FACH态时,已经存在对应的载波间负载调整方案。The terminal device has the following user states in the network: idle state, CELL_PCH (a RRC connected mode, where either DCCH nor DTCH is available, only can use paging channel for current cell) state, CELL_DCH (a RRC connected mode) where Both DCCH and DTCH are available) and CELL_FACH (a RRC connected mode where DCN or DTCH is available, only can use cell-forward access channel) state. Similar to the CELL_PCH state, there is also a user state: URA_PCH (a RRC connected mode where DCN nor DTCH is available, can use paging channels for some cells) state. For the terminal device in the idle state, CELL_DCH and CELL_FACH state, there already exists a corresponding inter-carrier load adjustment scheme.
但是,IDEL态下的驻留策略(主要有IDEL态用户随机驻留策略),例如F1载波用户的最低接入门限设置为-18dB,F2载波用户的最低接入门限设置为-14dB,由于门限需要人工手动设置,不同站点的负载情况不同,且负载会随着忙闲时间变化,所以无法给出合理的且实时的设置方案。However, the camping strategy in the IDEL state (mainly the IDEL state random parking strategy), for example, the minimum access threshold for F1 carrier users is set to -18dB, and the minimum access threshold for F2 carrier users is set to -14dB, due to the threshold Manual setting is required. The load conditions of different sites are different, and the load will change with the free and busy time, so it is impossible to give a reasonable and real-time setting plan.
业务过程中(即终端设备处于CELL_FACH态)的切换策略(主要有直接重试判决(directed retry decision,DRD)及负载重整(load reshuffling,LDR)策略),比如F1载波用户在通话过程中,或者浏览网页过程中,强制将F1载波用户切换到F2载波。由于增加了切换流程,在切换过程中,首先会引入时延,并且对于盲切换流程,由于载波间覆盖差异导致切换踏空切换失败引入关键绩效指标(key performance indicator,KPI)恶化问题,业务过程中的切换会导致用户体验变差(切换流程引入静音、杂音及时延体验)。During the business process (that is, the terminal device is in the CELL_FACH state), the switching strategy (mainly including direct retry decision (DRD) and load reshuffling (LDR) strategy), such as F1 carrier users during the call, Or, during web browsing, the F1 carrier user is forced to switch to the F2 carrier. Due to the increase of the handover process, delay will be introduced first in the handover process, and for the blind handover process, due to the difference in coverage between carriers, the handover failure of the handover is introduced. The key performance indicator (KPI) deterioration problem is introduced. The business process Switching in will lead to poor user experience (the switching process introduces mute, noise and delayed experience).
基于当前开通增强快速休眠(enhanced fast dormancy,EFD)及CELL_PCH的场景,终端设备大量时间处于CELL_PCH态,CELL_PCH态用户占比50%以上,idle态驻留策略不足以及时调整载波间负载,且需要减少后续切换流程带来的负增益。Based on the current scenario of enhanced fast dormancy (EFD) and CELL_PCH, the terminal equipment is in the CELL_PCH state for a large amount of time, and the CELL_PCH state users account for more than 50%. The idle state residence strategy is insufficient to adjust the inter-carrier load in a timely manner Reduce the negative gain brought by the subsequent switching process.
因此,亟待提供一种基于CELL_PCH态或URA_PCH态的载波间负载的调整方案。Therefore, there is an urgent need to provide an adjustment solution for the inter-carrier load based on the CELL_PCH state or the URA_PCH state.
发明内容Summary of the invention
本申请提供一种载波间负载的调整方法及装置,以实现终端设备处于CELL_PCH态或URA_PCH态时的载波间负载调整,为后续终端设备进行业务传输时,均衡负载,保证资源的提供。The present application provides an inter-carrier load adjustment method and device, so as to realize the inter-carrier load adjustment when the terminal device is in the CELL_PCH state or the URA_PCH state, so as to balance the load and ensure the provision of resources for subsequent terminal devices to perform service transmission.
第一方面,提供了一种载波间负载的调整方法,包括:实时检测多个载波间的负载;当确定第一载波与所述多个载波中的其它任意一个载波的负载差值大于或等于负载阈值时,选择所述第一载波上的处于第一状态的终端设备,所述第一状态包括CELL_PCH态或URA_PCH态;根据选择的所述处于第一状态的终端设备,确定第二载波;以及向所述第二载波发送重定向命令,所述重定向命令用于请求将所述处于第一状态的终端设备重定向至所述第二载波,所述重定向命令包括所述第二载波的标识。In the first aspect, a method for adjusting the load between carriers is provided, which includes: detecting the load between multiple carriers in real time; when it is determined that the load difference between the first carrier and any one of the multiple carriers is greater than or equal to When the load threshold is selected, the terminal device in the first state on the first carrier is selected, and the first state includes the CELL_PCH state or the URA_PCH state; the second carrier is determined according to the selected terminal device in the first state; And sending a redirection command to the second carrier, where the redirection command is used to request that the terminal device in the first state is redirected to the second carrier, and the redirection command includes the second carrier Logo.
在该方面中,终端设备处于CELL_PCH态或URA_PCH态时,极有可能很快进入业务传输过程,通过实时检测多个载波间的负载,当确定第一载波与多个载波中的其它任意一个载波的负载差值大于或等于负载阈值时,选择第一载波上的处于CELL_PCH态或URA_PCH态的终端设备,确定第二载波,并将终端设备重定向至第二载波。提前将处于CELL_PCH态或URA_PCH态且位于负载过大的载波上的终端设备重定向至负载较小的载波,可以使得终端设备在进入业务传输过程中时,均衡载波间的负载,能够给终端设备提供足够的资源分配,从而保证业务的正常进行。In this aspect, when the terminal device is in the CELL_PCH state or the URA_PCH state, it is very likely to enter the service transmission process quickly, by detecting the load between multiple carriers in real time, when it is determined that the first carrier and any other carrier among the multiple carriers When the load difference of is greater than or equal to the load threshold, select the terminal device on the first carrier in the CELL_PCH state or URA_PCH state, determine the second carrier, and redirect the terminal device to the second carrier. Redirect the terminal equipment in the CELL_PCH state or URA_PCH state and located on the carrier with excessive load to the carrier with a lighter load in advance, which can make the terminal equipment balance the load between the carriers when entering the service transmission process, which can give the terminal equipment Provide sufficient resource allocation to ensure the normal operation of the business.
在一种可能的实现方式中,所述方法还包括:在所述第一载波上释放所述终端设备与网络的连接。In a possible implementation manner, the method further includes: releasing the connection between the terminal device and the network on the first carrier.
在另一种可能的实现方式中,所述终端设备重定向至所述第二载波后,进入空闲态。In another possible implementation manner, after being redirected to the second carrier, the terminal device enters an idle state.
在又一种可能的实现方式中,所述根据选择的所述处于第一状态的终端设备,确定第二载波,包括:根据选择的所述处于第一状态的终端设备的数量以及所述多个载波中的其它任意一个载波上的负载,确定所述第二载波。In yet another possible implementation manner, the determining the second carrier according to the selected terminal device in the first state includes: according to the number of selected terminal devices in the first state and the multiple The load on any one of the other carriers determines the second carrier.
在又一种可能的实现方式中,所述第二载波为所述多个载波中负载最小的载波。In yet another possible implementation manner, the second carrier is the carrier with the smallest load among the multiple carriers.
在该实现方式中,将终端设备重定向至负载最小的载波,有利于负载的均衡。In this implementation, redirecting the terminal device to the carrier with the smallest load is beneficial to load balancing.
第二方面,提供了一种载波间负载的调整装置或设备,可以实现上述第一方面中的通信方法。例如所述载波间负载的调整装置可以是芯片或者无线网络控制器。可以通过软件、硬件、或者通过硬件执行相应的软件实现上述方法。In a second aspect, there is provided an apparatus or device for adjusting an inter-carrier load, which can implement the above-mentioned communication method in the first aspect. For example, the device for adjusting the load between carriers may be a chip or a wireless network controller. The above method can be implemented by software, hardware, or corresponding software executed by hardware.
在一种可能的实现方式中,所述载波间负载的调整设备的结构中包括处理器、存储器;所述处理器被配置为支持所述装置执行上述通信方法中相应的功能。存储器用于与处理器耦合,其保存所述装置必要的程序(指令)和/或数据。可选的,所述载波间负载的调整装置还可以包括通信接口用于支持所述装置与其他网元之间的通信。In a possible implementation manner, the structure of the device for adjusting the load between carriers includes a processor and a memory; the processor is configured to support the apparatus to perform the corresponding function in the above communication method. The memory is used for coupling with a processor, which stores necessary programs (instructions) and/or data of the device. Optionally, the device for adjusting the load between carriers may further include a communication interface for supporting communication between the device and other network elements.
在另一种可能的实现方式中,所述载波间负载的调整装置,可以包括执行上述方法中相应动作的单元模块。In another possible implementation manner, the device for adjusting the load between carriers may include a unit module that performs the corresponding action in the above method.
在又一种可能的实现方式中,包括处理器和收发装置,所述处理器与所述收发装置耦合,所述处理器用于执行计算机程序或指令,以控制所述收发装置进行信息的接收和发送;当所述处理器执行所述计算机程序或指令时,所述处理器还用于实现上述方法。其中,所述收发装置可以为收发器、收发电路或输入输出接口。当所述载波间负载的调整装置为芯 片时,所述收发装置为收发电路或输入输出接口。In yet another possible implementation manner, a processor and a transceiver device are included, and the processor is coupled to the transceiver device, and the processor is used to execute a computer program or instruction to control the transceiver device to receive and receive information. Send; when the processor executes the computer program or instruction, the processor is also used to implement the above method. Wherein, the transceiver device may be a transceiver, a transceiver circuit or an input-output interface. When the device for adjusting the load between carriers is a chip, the transceiver device is a transceiver circuit or an input-output interface.
当所述载波间负载的调整装置为芯片时,发送单元可以是输出单元,比如输出电路或者通信接口;接收单元可以是输入单元,比如输入电路或者通信接口。当所述载波间负载的调整装置为网络设备时,发送单元可以是发射器或发射机;接收单元可以是接收器或接收机。When the device for adjusting the load between carriers is a chip, the sending unit may be an output unit, such as an output circuit or a communication interface; and the receiving unit may be an input unit, such as an input circuit or a communication interface. When the device for adjusting the inter-carrier load is a network device, the sending unit may be a transmitter or a transmitter; the receiving unit may be a receiver or a receiver.
第三方面,提供了一种计算机可读存储介质,所述计算机可读存储介质中存储有指令,当其在计算机上运行时,使得计算机执行上述各方面所述的方法。In a third aspect, a computer-readable storage medium is provided, in which instructions are stored in the computer-readable storage medium, which when executed on a computer, causes the computer to execute the method described in the above aspects.
第四方面,提供了一种包含指令的计算机程序产品,当该指令在计算机上运行时,使得计算机执行上述各方面所述的方法。According to a fourth aspect, there is provided a computer program product containing instructions, which when executed on a computer, causes the computer to execute the method described in the above aspects.
附图说明BRIEF DESCRIPTION
为了更清楚地说明本申请实施例或背景技术中的技术方案,下面将对本申请实施例或背景技术中的附图进行说明。In order to more clearly explain the technical solutions in the embodiments or the background art of the present application, the drawings in the embodiments or the background art of the present application will be described below.
图1为基于不同负载均衡策略的载波间的负载调整示意图;Figure 1 is a schematic diagram of load adjustment between carriers based on different load balancing strategies;
图2为直接重试判决的流程示意图;Figure 2 is a schematic diagram of the process of direct retry judgment;
图3为异频负载均衡的流程示意图;Figure 3 is a schematic diagram of the process of inter-frequency load balancing;
图4为本申请实施例提供的一种载波间负载的调整方法的流程示意图;4 is a schematic flowchart of a method for adjusting an inter-carrier load according to an embodiment of the present application;
图5为基于CELL_PCH态的终端设备重定向示意图;5 is a schematic diagram of terminal device redirection based on the CELL_PCH state;
图6为当终端设备处于不同的状态时采用不同的负载均衡策略的示意图;6 is a schematic diagram of different load balancing strategies when the terminal device is in different states;
图7为本申请实施例提供的一种载波间负载的调整装置的模块结构示意图;7 is a schematic diagram of a module structure of an apparatus for adjusting load between carriers provided by an embodiment of the present application;
图8为本申请实施例提供的一种载波间负载的调整设备的结构示意图。FIG. 8 is a schematic structural diagram of an inter-carrier load adjustment device according to an embodiment of the present application.
具体实施方式detailed description
下面结合本申请实施例中的附图对本申请实施例进行描述。The following describes the embodiments of the present application with reference to the drawings in the embodiments of the present application.
本申请中的网络可以是UMTS网络,也可以是其它的网络。该网络是多载波组网。每个载波或者每个频段对应一个小区。这些多个载波对应的小区可以属于一个网络设备,也可以属于多个网络设备,多个网络设备由无线网络控制器(radio network controller,RNC)控制。The network in this application may be a UMTS network or other networks. The network is a multi-carrier network. Each carrier or each frequency band corresponds to a cell. The cells corresponding to these multiple carriers may belong to one network device, or may belong to multiple network devices, and the multiple network devices are controlled by a radio network controller (RNC).
网络设备可以是能和终端设备通信的设备。网络设备可以是任意一种具有无线收发功能的设备。包括但不限于:基站NodeB、演进型基站eNodeB、第五代(the fifth generation,5G)通信系统中的基站、未来通信系统中的基站或网络设备、WiFi系统中的接入节点、无线中继节点、无线回传节点等。网络设备还可以是云无线接入网络(cloud radio access network,CRAN)场景下的无线控制器。网络设备还可以是小站,传输节点(transmission reference point,TRP)等。本申请的实施例对网络设备所采用的具体技术和具体设备形态不做限定。The network device may be a device that can communicate with the terminal device. The network device may be any device with wireless transceiver function. Including but not limited to: base station NodeB, evolved base station eNodeB, base station in the fifth generation (5G) communication system, base station or network equipment in future communication system, access node in WiFi system, wireless relay Nodes, wireless backhaul nodes, etc. The network device may also be a wireless controller in a cloud radio access network (CRAN) scenario. The network device may also be a small station, transmission node (transmission reference point, TRP), and so on. The embodiments of the present application do not limit the specific technology and specific device form adopted by the network device.
终端设备是一种具有无线收发功能的设备,可以部署在陆地上,包括室内或室外、手持、穿戴或车载;也可以部署在水面上,如轮船上等;还可以部署在空中,如飞机、气球和卫星上等。所述终端设备可以是手机(mobile phone)、平板电脑(pad)、带无线收发功 能的电脑、虚拟现实(virtual reality,VR)终端设备、增强现实(augmented reality,AR)终端设备、工业控制(industrial control)中的无线终端、无人驾驶(self-driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等等。本申请的实施例对应用场景不做限定。终端设备有时也可以称为用户设备(user equipment,UE)、接入终端设备、UE单元、移动站、移动台、远方站、远程终端设备、移动设备、终端(terminal)、无线通信设备、UE代理或UE装置等。Terminal equipment is a device with wireless transceiver function, which can be deployed on land, including indoor or outdoor, handheld, wearable, or vehicle-mounted; it can also be deployed on the water, such as ships, etc.; it can also be deployed in the air, such as aircraft, Balloons and satellites are fine. The terminal device may be a mobile phone, a tablet, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, and industrial control ( wireless terminal in industrial control, wireless terminal in self-driving, wireless terminal in remote medical, wireless terminal in smart grid, transportation safety Wireless terminals in smart cities, wireless terminals in smart cities, wireless terminals in smart homes, etc. The embodiments of the present application do not limit the application scenarios. Terminal equipment may sometimes be called user equipment (user equipment (UE), access terminal equipment, UE unit, mobile station, mobile station, remote station, remote terminal equipment, mobile device, terminal), wireless communication device, UE Agent or UE device, etc.
需要说明的是,本申请实施例中的术语“系统”和“网络”可被互换使用。“多个”是指两个或两个以上,鉴于此,本申请实施例中也可以将“多个”理解为“至少两个”。“和/或”,描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,字符“/”,如无特殊说明,一般表示前后关联对象是一种“或”的关系。It should be noted that the terms "system" and "network" in the embodiments of the present application may be used interchangeably. "Multiple" refers to two or more. In view of this, in the embodiments of the present application, "multiple" may also be understood as "at least two". "And/or" describes the relationship of the related objects, indicating that there can be three relationships, for example, A and/or B, which can indicate: there are three cases of A alone, A and B at the same time, B alone. In addition, the character "/", unless otherwise specified, generally indicates that the related object is a "or" relationship.
首先,简要介绍本申请中涉及的UE的四种状态:First, briefly introduce the four states of the UE involved in this application:
·CELL_DCH状态·CELL_DCH status
UE占用专用信道资源,占用较多的无线资源,适合高速连续数传。The UE occupies dedicated channel resources and occupies more wireless resources, which is suitable for high-speed continuous data transmission.
·CELL_FACH状态·CELL_FACH status
UE使用公共信道发送或接收数据,占用资源较少。由于RACH和FACH的资源限制,CELL_FACH状态适合低速数传。The UE uses a common channel to send or receive data, which occupies fewer resources. Due to the resource limitations of RACH and FACH, the CELL_FACH state is suitable for low-speed data transmission.
·CELL_PCH状态·CELL_PCH status
上行方向,UE不能发送信令消息。如果有上行数据待发,则需要通过CELL UPDATE流程迁移到CELL_FACH或CELL_DCH状态。In the upstream direction, the UE cannot send signaling messages. If there is upstream data to be sent, you need to migrate to CELL_FACH or CELL_DCH through the CELL UPDATE process.
下行方向,UE使用非连续接收(discontinuous reception,DRX)技术,在某个特定的寻呼时刻监听PCH信道上的信息来接收寻呼。若处于CELL_PCH状态的UE在WCDMA网络中,UTRAN能获得UE当前所在的小区,并在该小区范围内对该UE进行寻呼。UE在移动到新小区后需要通过CELL Update消息进行小区重选。In the downlink direction, the UE uses discontinuous reception (DRX) technology to monitor the information on the PCH channel at a specific paging moment to receive paging. If the UE in the CELL_PCH state is in a WCDMA network, UTRAN can obtain the cell where the UE is currently located and page the UE within the range of the cell. After moving to a new cell, the UE needs to perform cell reselection through the CELL Update message.
·URA_PCH状态· URA_PCH status
与CELL_PCH状态的区别是,若处于URA_PCH状态的UE在WCDMA网络中,UTRAN能获得UE当前所在的UTRAN注册区域(UTRAN registration area,URA)并在该URA范围内对该UE进行寻呼。UE在移动到新的URA后需要通过URA UPDATE消息进行URA变更。The difference from the CELL_PCH state is that if a UE in the URA_PCH state is in a WCDMA network, UTRAN can obtain the UTRAN registration area (URA) where the UE is currently located and page the UE within the range of the URA. After moving to a new URA, the UE needs to make a URA change through the URA UPDATE message.
然后,下面对处于idle态、CELL_DCH态和CELL_FACH态的载波间负载的均衡策略和业务保障策略进行介绍:Then, the following introduces the load balancing strategy and service guarantee strategy between the carriers in the idle state, CELL_DCH state, and CELL_FACH state:
基于载波差异并结合客户诉求,现网需要诸多调整动作来实现载波负载的调整与满足客户诉求。例如,在多载波组网优先保障语音业务的场景中,为了优先保障语音业务,可以采用倾向驻留业务分层策略,例如,分成F1~Fn个载波。所有载波均支持R99业务及高速分组接入(high speed packet access,HSPA)业务(简称“H业务”),并且F1优先承载R99业务,F2、F3、F4、…、Fn优先承载H业务。Based on carrier differences and combining customer demands, the existing network requires many adjustment actions to adjust the carrier load and meet customer demands. For example, in a scenario where multi-carrier networking gives priority to guaranteeing voice services, in order to give priority to guaranteeing voice services, a tiered strategy for resident services may be adopted, for example, divided into F1-Fn carriers. All carriers support R99 services and high-speed packet access (HSPA) services ("H services" for short), and F1 preferentially carries R99 services, and F2, F3, F4, ..., Fn preferentially bear H services.
驻留策略:Resident strategy:
空闲态、CELL_PCH态和URA_PCH态的用户倾向驻留F1。为了使F2、F3、F4、…、Fn小区的空闲态用户更快地重选到F1,则空闲态、CELL_PCH态和URA_PCH态的用户倾向驻留F1。CELL_FACH态用户单独处理,驻留在原有载波。Users in the idle state, CELL_PCH state, and URA_PCH state tend to reside in F1. In order to make the idle users in F2, F3, F4, ..., Fn cells reselect to F1 more quickly, users in idle state, CELL_PCH state and URA_PCH state tend to camp on F1. CELL_FACH users are handled separately and reside on the original carrier.
接入态策略(CELL_DCH态对应的策略):Access state strategy (CELL_DCH state corresponding strategy):
语音业务和组合业务在源小区(用户在RRC阶段接入的小区)直接接入。Voice services and combined services are directly accessed in the source cell (the cell that the user accesses in the RRC phase).
数据业务Data business
1)基于HSPA+技术满足度分层接入到其他小区,使用DRD方式。1) Hierarchical access to other cells based on HSPA+ technology satisfaction, using DRD mode.
2)基于业务分层接入到其他小区,使用DRD方式。2) Based on business hierarchical access to other cells, using DRD mode.
3)基于负载等分层接入到其他小区,使用DRD方式。3) Hierarchical access to other cells based on load, etc., using the DRD method.
连接态策略(CELL_FACH态对应的策略):Connected state strategy (CELL_FACH state corresponding strategy):
基于负载的异频切换;Different frequency switching based on load;
基于覆盖的异频切换。Inter-frequency switching based on coverage.
其中,基于负载的异频切换包括LDR策略等。基于覆盖的异频切换具体可以是基于信号覆盖的异频切换。Among them, load-based inter-frequency handover includes LDR strategy and so on. The coverage-based inter-frequency handover may specifically be a coverage-based inter-frequency handover.
关于以上几种载波间负载的均衡策略和业务保障策略,如图1所示,为基于不同负载均衡策略的载波间的负载调整示意图,空闲态时,F1优先承载R99业务。F2、F3、F4…Fn优先承载H业务。当F2、F3、F4…Fn上进行H业务的UE进入空闲态时,可以切换至F1,此种切换策略可以称为倾向性驻留(preferred camping);当F1上的处于空闲态的UE接入网络进入连接态时,可以盲切换(blind handover,blind HO)至F2、F3、F4…Fn中的任一个载波;如果F2、F3、F4…Fn负载过大,处于连接态的UE也可以从当前所在的F2、F3、F4…Fn中的任一个载波异频切换(inter-freq HO)至F2、F3、F4…Fn中的其它任一个异频载波,如图1所示,Fn、F4上的处于连接态的UE切换至F3。Regarding the above several load balancing strategies and service guarantee strategies between carriers, as shown in FIG. 1, it is a schematic diagram of load adjustment between carriers based on different load balancing strategies. When idle, F1 preferentially carries R99 services. F2, F3, F4...Fn preferentially bear H services. When the UE performing H service on F2, F3, F4...Fn enters the idle state, it can switch to F1. This switching strategy can be referred to as preferential camping; when the idle UE on F1 connects When entering the network to enter the connected state, you can blindly switch (blind handover, blind HO) to any carrier in F2, F3, F4...Fn; if F2, F3, F4...Fn is overloaded, the UE in the connected state can also Inter-freq HO from any carrier in F2, F3, F4...Fn where it is currently located to any other inter-frequency carrier in F2, F3, F4...Fn, as shown in Figure 1, Fn, The connected UE on F4 switches to F3.
具体地,对于idle态的驻留策略,需要手动设置如下表1~表2所示的idle态驻留策略参数,通过系统消息携带给UE,UE此时无法获取网络侧各个载波负载,UE基于如下参数配置并结合覆盖等条件完成载波间的重选与驻留。下面表1~表2以F1~F3载波或小区的切换进行示例描述,其它载波的切换可参考这些参数的设置。Specifically, for the idle state dwelling strategy, the idle state dwelling strategy parameters shown in Table 1 to Table 2 below need to be manually set and carried to the UE through system messages. The UE cannot obtain each carrier load on the network side at this time. The UE is based on The following parameters are configured and combined with coverage and other conditions to complete the reselection and camping between carriers. The following Tables 1 to 2 describe the switching of F1 to F3 carriers or cells as an example, and the switching of other carriers can refer to the settings of these parameters.
表1Table 1
Figure PCTCN2019125766-appb-000001
Figure PCTCN2019125766-appb-000001
Figure PCTCN2019125766-appb-000002
Figure PCTCN2019125766-appb-000002
表2Table 2
Figure PCTCN2019125766-appb-000003
Figure PCTCN2019125766-appb-000003
其中,IdleQoffset2sn表示强制倾向驻留的参数。Among them, IdleQoffset2sn represents a parameter that forces a tendency to reside.
对于业务过程中的切换策略,主要有DRD和LDR策略。For the switching strategies in the business process, there are mainly DRD and LDR strategies.
DRD是指RNC选择合适的小区给UE接入的过程,是UE接入网络的方法之一。图2为直接重试判决的流程示意图。如图2所示,DRD的流程包括:DRD refers to the process in which the RNC selects a suitable cell for the UE to access, and is one of the methods for the UE to access the network. Figure 2 is a schematic diagram of the process of direct retry decision. As shown in Figure 2, the DRD process includes:
S201、RNC根据相关条件触发DRD。S201. The RNC triggers DRD according to relevant conditions.
S202、RNC筛选符合条件的DRD候选邻区。S202. The RNC screens the DRD candidate neighboring cells that meet the conditions.
S203、RNC选择目标小区进行接入尝试。S203. The RNC selects the target cell to make an access attempt.
S204、判断小区是否接入成功。S204. Determine whether the cell is successfully accessed.
S205、如果接入成功,则DRD成功,流程结束。S205. If the access is successful, the DRD is successful and the process ends.
S206、如果接入失败,则DRD失败,进入S207。S206. If the access fails, the DRD fails, and the process proceeds to S207.
S207、小区接入失败处理。S207. Handle cell access failure.
具体地,小区接入失败处理包括:如果异频DRD失败,可以执行异系统DRD;如果异系统DRD失败,则流程结束。该异系统是指不同制式的通信系统,例如GSM、LTE等。Specifically, the cell access failure processing includes: if the inter-frequency DRD fails, the inter-system DRD can be performed; if the inter-system DRD fails, the process ends. The heterogeneous system refers to communication systems of different standards, such as GSM and LTE.
异频负载平衡特性支持在小区处于初级拥塞状态时,将部分用户切换到异频同覆盖小区,以降低本小区负载。本特性也称为异频负载切换。图3为异频负载均衡的流程示意图,LDR异频负载平衡的流程包括:The inter-frequency load balancing feature supports switching some users to inter-frequency co-coverage cells when the cell is in the primary congestion state to reduce the load of the local cell. This feature is also called inter-frequency load switching. Figure 3 is a schematic diagram of the process of inter-frequency load balancing. The process of LDR inter-frequency load balancing includes:
S301、RNC根据相关条件(例如,小区各资源的负载门限是否达到LDR门限)触发LDR异频负载平衡。小区处于CELL_FACH状态,且RNC筛选符合条件的用户进行异频切换动作。S301. The RNC triggers LDR inter-frequency load balancing according to relevant conditions (for example, whether the load threshold of each resource of the cell reaches the LDR threshold). The cell is in the CELL_FACH state, and the RNC screens qualified users to perform inter-frequency handover.
其中,LDR针对的是一种资源拥塞的状态,解除这种状态需要出发一些动作来实现。而异频切换是这些动作中的其中一个。而当打开LDR异频负载平衡这个功能的时候,就触发异频切换动作。Among them, LDR is aimed at a state of resource congestion, and releasing this state requires some actions to achieve. Inter-frequency handover is one of these actions. When the function of LDR inter-frequency load balancing is turned on, the inter-frequency switching action is triggered.
S302、配置LDR切换策略。其中,盲切换优先。S302. Configure an LDR switching strategy. Among them, blind handover has priority.
S303、判断是否有符合条件的盲切换邻区。S303. Determine whether there is a blind handover neighbor cell that meets the conditions.
S304、如果有符合条件的盲切换邻区,则执行盲切换动作,选择配置的盲切换邻区执行异频盲切换。S304. If there is a blind handover neighbor cell that meets the conditions, perform a blind handover action, and select the configured blind handover neighbor cell to perform inter-frequency blind handover.
S305、如果没有符合条件的盲切换邻区,则判断是否有符合条件的测量切换邻区。S305. If there is no blind handover neighbor cell that meets the condition, determine whether there is a measurement handover neighbor cell that meets the condition.
S306、如果基于测量的异频切换,选择基于测量上报符合条件的异频邻区执行异频切换。S306: If the inter-frequency handover based on measurement is selected, the inter-frequency neighboring cell that meets the conditions based on the measurement report is selected to perform inter-frequency handover.
S307、LDR动作完成,RNC基于当前负载判断是否执行下一个LDR动作。S307. The LDR action is completed, and the RNC determines whether to execute the next LDR action based on the current load.
S308、在S305中,如果没有符合条件的测量切换邻区,则执行下一个LDR动作。S308. In S305, if there is no eligible measurement switching neighbor cell, the next LDR action is performed.
然而,如前所述,idle态下的驻留策略(主要有idle态用户随机驻留策略),例如F1载波用户的最低接入门限设置为-18dB,F2载波用户的最低接入门限设置为-14dB。但由于门限需要人工手动设置,不同站点的负载情况不同,且负载会随着忙闲时间变化,所以无法给出合理的且实时的设置方案。However, as mentioned earlier, the camping strategy in the idle state (mainly there is a random camping strategy for idle users), for example, the minimum access threshold for F1 carrier users is set to -18dB, and the minimum access threshold for F2 carrier users is set to -14dB. However, since the threshold needs to be set manually, the load conditions of different sites are different, and the load will change with the free and busy time, so a reasonable and real-time setting scheme cannot be given.
业务过程中切换策略(主要有DRD及LDR策略),比如F1载波用户在通话过程中,或者浏览网页过程中,强制将F1载波用户切换到F2载波。由于增加了切换流程,在切换过程中,首先会引入时延,并且对于盲切换流程,由于载波间覆盖差异导致切换踏空切换失败引入KPI恶化问题,业务过程中的切换会导致用户体验变差(切换流程引入静音、杂音及时延体验)。Switching strategies in the business process (mainly DRD and LDR strategies), for example, F1 carrier users are forced to switch F1 carrier to F2 carrier during a call or during web browsing. Due to the increase of the handover process, delay will first be introduced during the handover process, and for the blind handover process, due to the difference in coverage between carriers, the handover failure will cause the KPI deterioration problem, and the handover in the business process will result in a poor user experience (The switching process introduces mute, noise and delayed experience).
本申请基于当前开通的EFD及CELL_PCH的场景,UE大量时间处于CELL_PCH态。PCH态用户占比50%以上,idle态驻留策略调整载波间RRC次数及RAB阶段DRD调整次数不足以及时调整载波间负载,通过PCH态重定向策略结合载波间负载(CELL_PCH态时,RNC可以获取载波间负载情况)调整被重定向用户在载波间的idle态分布,并且可以减少后续切换流程带来的负增益。需要说明的是,PCH态包括CELL_PCH与URA_PCH态,本申请的技术方案同样适用于URA_PCH态,实现流程相同。This application is based on the currently opened EFD and CELL_PCH scenarios, and the UE is in the CELL_PCH state for a large amount of time. PCH state users account for more than 50%, idle state parking strategy adjusts inter-carrier RRC times and RAB phase DRD adjustment times are insufficient to adjust inter-carrier load in a timely manner, through PCH state redirection strategy combined with inter-carrier load (CELL_PCH state, RNC can Obtain the inter-carrier load situation) Adjust the idle state distribution of the redirected user between carriers, and can reduce the negative gain brought by the subsequent handover process. It should be noted that the PCH state includes the CELL_PCH and URA_PCH states. The technical solution of the present application is also applicable to the URA_PCH state, and the implementation process is the same.
图4为本申请实施例提供的一种载波间负载的调整方法的流程示意图,具体是基于PCH态的载波间负载均衡。可以由RNC进行载波间负载的调整,当然也可以是其它的控制器或网络设备。本实施例以RNC进行载波间负载的调整为例进行描述。该方法包括以下步骤:FIG. 4 is a schematic flowchart of a method for adjusting an inter-carrier load according to an embodiment of the present application, specifically, the inter-carrier load balancing based on the PCH state. The RNC can adjust the load between carriers, and of course it can be other controllers or network devices. This embodiment is described by taking the RNC adjusting the inter-carrier load as an example. The method includes the following steps:
S401、实时检测多个载波间的负载。S401. Detect the load between multiple carriers in real time.
网络中一个局点可包括多个载波,例如有局点最多可以是7个载波。RNC实时检测各个载波间的负载。载波间的负载即两个载波的负载之差。An office in the network can include multiple carriers, for example, an office can be up to 7 carriers. RNC detects the load between each carrier in real time. The load between the carriers is the difference between the loads of the two carriers.
S402、当确定第一载波与所述多个载波中的其它任意一个载波的负载差值大于或等于负载阈值时,选择所述第一载波上的处于第一状态的终端设备,所述第一状态包括CELL_PCH态或URA_PCH态。S402. When it is determined that the load difference between the first carrier and any one of the multiple carriers is greater than or equal to the load threshold, select the terminal device on the first carrier in the first state, the first The states include CELL_PCH state or URA_PCH state.
触发进行载波间负载的调整,存在一个载波间负载阈值,当一个载波(第一载波)与其它任意一个载波的负载差值大于或等于该阈值时,则触发进行载波间负载的调整。例如,F1的负载-F2的负载>载波间负载阈值,则触发F1的负载调整。To trigger the adjustment of the inter-carrier load, there is an inter-carrier load threshold. When the load difference between one carrier (the first carrier) and any other carrier is greater than or equal to the threshold, the adjustment of the inter-carrier load is triggered. For example, F1 load-F2 load> inter-carrier load threshold, then trigger F1 load adjustment.
在第一载波上可能存在处于不同状态的UE,从中选择处于CELL_PCH态或URA_PCH态的UE。CELL_PCH态或URA_PCH态即该UE不活动定时器未超时释放到idle态且并未触发状态迁移。选择处于CELL_PCH态或URA_PCH态的UE,可以是选择第一载波上全部处于CELL_PCH态或URA_PCH态的UE,也可以是选择第一载波上部分处于CELL_PCH态或URA_PCH态的UE。选择的策略有多种,在此不作限制。There may be UEs in different states on the first carrier, from which UEs in the CELL_PCH state or URA_PCH state are selected. The CELL_PCH state or the URA_PCH state means that the UE inactivity timer is not released to the idle state without timeout and does not trigger the state transition. Selecting UEs in the CELL_PCH state or URA_PCH state may be selecting all UEs in the CELL_PCH state or URA_PCH state on the first carrier, or may select UEs in the CELL_PCH state or URA_PCH state on the first carrier. There are many strategies to choose from, and there are no restrictions here.
S403、根据选择的所述处于第一状态的终端设备,确定第二载波。S403. Determine the second carrier according to the selected terminal device in the first state.
其中,第二载波即CELL_PCH态或URA_PCH态的UE切换后的载波。确定第二载波,需要保证CELL_PCH态或URA_PCH态的UE切换至第二载波后,并且进入连接态后,第二载波能保证其上的UE的资源分配,保证业务的正常进行。换句话说,即判断第二载波是否满足负载分担条件。The second carrier is the carrier after the UE in the CELL_PCH state or the URA_PCH state is switched. To determine the second carrier, it is necessary to ensure that the UE in the CELL_PCH state or URA_PCH state is switched to the second carrier, and after entering the connected state, the second carrier can ensure the resource allocation of the UE on it and ensure the normal operation of services. In other words, it is determined whether the second carrier satisfies the load sharing condition.
具体地,S403包括:根据选择的所述处于第一状态的终端设备的数量以及所述多个载波中的其它任意一个载波上的负载,确定所述第二载波。可选地,所述第二载波为所述多个载波中负载最小的载波。即考虑即将切换过去的CELL_PCH态或URA_PCH态的UE的数量,如果数量太多,则要考虑第二载波是否是最佳承载的载波,例如,是否是除第一载波外的其它载波中负载最小的载波。Specifically, S403 includes: determining the second carrier according to the selected number of the terminal devices in the first state and the load on any other carrier among the multiple carriers. Optionally, the second carrier is the carrier with the smallest load among the multiple carriers. That is, consider the number of UEs that are about to switch to the CELL_PCH state or URA_PCH state. If there are too many UEs, consider whether the second carrier is the best-carrying carrier, for example, whether it is the least-loaded carrier other than the first carrier Of the carrier.
S404、向所述第二载波发送重定向命令,所述重定向命令用于请求将所述处于第一状态的终端设备重定向至所述第二载波,所述重定向命令包括所述第二载波的标识。S404. Send a redirection command to the second carrier, where the redirection command is used to request that the terminal device in the first state is redirected to the second carrier, and the redirection command includes the second Carrier identification.
可选地,所述终端设备重定向至所述第二载波后,进入空闲态。Optionally, after redirecting to the second carrier, the terminal device enters an idle state.
可选地,在S404之后,还可以包括以下步骤:在所述第一载波上释放所述终端设备与网络的连接。Optionally, after S404, the following step may be further included: releasing the connection between the terminal device and the network on the first carrier.
如图5所示的基于CELL_PCH态的终端设备重定向示意图,在调整前,RNC检测到F1上有3个处于CELL_PCH态的UE,而F2上只有1个处于CELL_PCH态的UE,假设F1和F2上只有处于CELL_PCH态的UE。假设载波间负载差的阈值为1,则F1上的负载-F2上的负载=2,超过了该阈值。则对于处于CELL_PCH态的UE进行重定向,将F1上的1个处于CELL_PCH态的UE重定向到F2载波,并且,断开F1和F2上处于CELL_PCH态的UE的网络连接,F1和F2上的处于CELL_PCH态的UE进入idle态。经过调整后,F1和F2上的UE均为2个,则达到了负载均衡。As shown in the schematic diagram of the terminal device redirection based on the CELL_PCH state shown in FIG. 5, before the adjustment, the RNC detects that there are three UEs in the CELL_PCH state on F1, and only one UE in the CELL_PCH state on F2, assuming that F1 and F2 There is only UE in CELL_PCH state. Assuming that the threshold of the load difference between carriers is 1, the load on F1-the load on F2 = 2, which exceeds the threshold. Then, the UE in the CELL_PCH state is redirected, the UE in the CELL_PCH state on F1 is redirected to the F2 carrier, and the network connection of the UE in the CELL_PCH state on F1 and F2 is disconnected. The UE in the CELL_PCH state enters the idle state. After adjustment, there are two UEs on F1 and F2, and the load balance is achieved.
RNC实时监控载波间负载差异,通过设置的负载调整门限,当载波间负载差别超过设置的门限,RNC通过载波间负载判别结果选定目标频点,然后选取CELL_PCH态用户触发RRC释放重定向功能到目标频点,从该用户再次接入网络是就会消耗目标频点资源,从 而降低当前小区负载的目的。RNC monitors the load difference between carriers in real time, and adjusts the threshold through the set load. When the load difference between carriers exceeds the set threshold, the RNC selects the target frequency point through the load discrimination result between carriers, and then selects the CELL_PCH state user to trigger the RRC release redirect function to For the target frequency point, when the user accesses the network again, the target frequency point resource will be consumed, thereby reducing the purpose of the current cell load.
在进行载波间负载调整过程,通过引入CELL_PCH态载波间负载判断流程并基于载波间负载判别结果,选取CELL_PCH态用户触发RRC释放的重定向功能,从而通过调整载波间用户驻留来均衡载波间负载,CELL_PCH态针对用户类似与IDEL态,此时的负载调整动作不会影响用户体验,也不会影响网络KPI。During the inter-carrier load adjustment process, by introducing the CELL_PCH state inter-carrier load judgment process and selecting the CELL_PCH state user to trigger the RRC release redirection function based on the inter-carrier load discrimination result, the inter-carrier load is balanced by adjusting the inter-carrier user residence The CELL_PCH state is similar to the IDEL state for users, and the load adjustment action at this time will not affect the user experience or the network KPI.
这样,如图6所示的当终端设备处于不同的状态时采用不同的负载均衡策略的示意图,对于处于不同状态的UE可以采用不同的负载均衡策略进行负载均衡。具体地,如图6所示的F1和F2两个载波上的负载调整,处于idle态的UE可以通过重选倾向驻留在F1或F2,处于CELL_DCH态的UE可以通过DRD选择驻留在F1或F2,处于CELL_FACH态的UE可以通过LDR选择驻留在F1或F2,而处于CELL_PCH态的UE可以基于本申请的负载调整方法选择驻留在F1或F2。从而完善了不同状态的UE的负载均衡策略。In this way, as shown in FIG. 6, when terminal devices are in different states, different load balancing strategies are used. For UEs in different states, different load balancing strategies can be adopted to perform load balancing. Specifically, as shown in FIG. 6, the load adjustment on the two carriers F1 and F2, the UE in the idle state can camp on F1 or F2 through the reselection tendency, and the UE in the CELL_DCH state can choose to camp on F1 through DRD Or F2, the UE in the CELL_FACH state can choose to reside in F1 or F2 through the LDR, and the UE in the CELL_PCH state can choose to stay in F1 or F2 based on the load adjustment method of the present application. Thus, the load balancing strategy of UEs in different states is improved.
根据本申请实施例提供的一种载波间负载的调整方法,终端设备处于CELL_PCH态或URA_PCH态时,极有可能很快进入业务传输过程,通过实时检测多个载波间的负载,当确定第一载波与多个载波中的其它任意一个载波的负载差值大于或等于负载阈值时,选择第一载波上的处于CELL_PCH态或URA_PCH态的终端设备,确定第二载波,并将终端设备重定向至第二载波。提前将处于CELL_PCH态或URA_PCH态且位于负载过大的载波上的终端设备重定向至负载较小的载波,可以使得终端设备在进入业务传输过程中时,均衡载波间的负载,能够给终端设备提供足够的资源分配,从而保证业务的正常进行。According to a method for adjusting an inter-carrier load provided by an embodiment of the present application, when a terminal device is in the CELL_PCH state or URA_PCH state, it is very likely to quickly enter the service transmission process. By detecting the load between multiple carriers in real time, when determining the first When the load difference between the carrier and any one of the multiple carriers is greater than or equal to the load threshold, select the terminal device on the first carrier in the CELL_PCH state or URA_PCH state, determine the second carrier, and redirect the terminal device to The second carrier. Redirect the terminal equipment in the CELL_PCH state or URA_PCH state and located on the carrier with excessive load to the carrier with a lighter load in advance, which can make the terminal equipment balance the load between the carriers when entering the service transmission process, which can give the terminal equipment Provide sufficient resource allocation to ensure the normal operation of the business.
上述详细阐述了本申请实施例的方法,下面提供了本申请实施例的装置和设备。The method of the embodiment of the present application is explained in detail above, and the apparatus and equipment of the embodiment of the present application are provided below.
基于上述实施例中的载波间负载的调整方法的同一构思,如图7所示,本申请实施例还提供一种载波间负载的调整装置7000,该载波间负载的调整装置可应用于上述图4所示的方法中。该装置可以是RNC。该装置7000包括检测单元71、选择单元72、确定单元73和重定向单元74,还可包括释放单元75。其中:Based on the same concept of the method for adjusting the inter-carrier load in the above embodiment, as shown in FIG. 7, an embodiment of the present application further provides an apparatus 7000 for adjusting the inter-carrier load, which can be applied to the above-mentioned diagram In the method shown in 4. The device may be an RNC. The device 7000 includes a detection unit 71, a selection unit 72, a determination unit 73, and a redirection unit 74, and may further include a release unit 75. among them:
检测单元71,用于实时检测多个载波间的负载;The detection unit 71 is used to detect the load between multiple carriers in real time;
选择单元72,用于当确定第一载波与所述多个载波中的其它任意一个载波的负载差值大于或等于负载阈值时,选择所述第一载波上的处于第一状态的终端设备,所述第一状态包括CELL_PCH态或URA_PCH态;The selection unit 72 is configured to select the terminal device in the first state on the first carrier when it is determined that the load difference between the first carrier and any one of the multiple carriers is greater than or equal to the load threshold, The first state includes the CELL_PCH state or the URA_PCH state;
确定单元73,用于根据选择的所述处于第一状态的终端设备,确定第二载波;The determining unit 73 is configured to determine the second carrier according to the selected terminal device in the first state;
重定向单元74,用于向所述第二载波发送重定向命令,所述重定向命令用于请求将所述处于第一状态的终端设备重定向至所述第二载波,所述重定向命令包括所述第二载波的标识。A redirect unit 74, configured to send a redirect command to the second carrier, the redirect command is used to request that the terminal device in the first state is redirected to the second carrier, the redirect command Including the identification of the second carrier.
在一个实现方式中,所述释放单元75,用于在所述第一载波上释放所述终端设备与网络的连接。In an implementation manner, the releasing unit 75 is configured to release the connection between the terminal device and the network on the first carrier.
在另一个实现方式中,所述终端设备重定向至所述第二载波后,进入空闲态。In another implementation manner, after redirecting to the second carrier, the terminal device enters an idle state.
在又一个实现方式中,所述确定单元73用于根据选择的所述处于第一状态的终端设备的数量以及所述多个载波中的其它任意一个载波上的负载,确定所述第二载波。In yet another implementation, the determining unit 73 is configured to determine the second carrier according to the selected number of terminal devices in the first state and the load on any other carrier among the multiple carriers .
在又一个实现方式中,所述第二载波为所述多个载波中负载最小的载波。In yet another implementation, the second carrier is the carrier with the smallest load among the multiple carriers.
有关上述检测单元71、选择单元72、确定单元73、重定向单元74和释放单元75更详细的描述可以直接参考上述图4所示的方法实施例中载波间负载的调整装置的相关描述直接得到,这里不加赘述。For a more detailed description of the above detection unit 71, selection unit 72, determination unit 73, redirection unit 74, and release unit 75, refer directly to the relevant description of the apparatus for adjusting the inter-carrier load in the method embodiment shown in FIG. 4 above. , I won’t go into details here.
根据本申请实施例提供的一种载波间负载的调整装置,终端设备处于CELL_PCH态或URA_PCH态时,极有可能很快进入业务传输过程,通过实时检测多个载波间的负载,当确定第一载波与多个载波中的其它任意一个载波的负载差值大于或等于负载阈值时,选择第一载波上的处于CELL_PCH态或URA_PCH态的终端设备,确定第二载波,并将终端设备重定向至第二载波。提前将处于CELL_PCH态或URA_PCH态且位于负载过大的载波上的终端设备重定向至负载较小的载波,可以使得终端设备在进入业务传输过程中时,均衡载波间的负载,能够给终端设备提供足够的资源分配,从而保证业务的正常进行。According to an apparatus for adjusting an inter-carrier load provided by an embodiment of the present application, when a terminal device is in the CELL_PCH state or URA_PCH state, it is very likely to quickly enter the service transmission process. By detecting the load between multiple carriers in real time, when determining the first When the load difference between the carrier and any one of the multiple carriers is greater than or equal to the load threshold, select the terminal device in the CELL_PCH state or URA_PCH state on the first carrier, determine the second carrier, and redirect the terminal device to The second carrier. Redirect the terminal equipment in the CELL_PCH state or URA_PCH state and located on the carrier that is overloaded to the carrier with a lighter load in advance, which can make the terminal equipment balance the load between the carriers when entering the service transmission process, which can give the terminal equipment Provide sufficient resource allocation to ensure the normal operation of the business.
本申请实施例中还提供一种载波间负载的调整设备,该载波间负载的调整设备用于执行上述载波间负载的调整方法。上述载波间负载的调整方法中的部分或全部可以通过硬件来实现也可以通过软件来实现。An embodiment of the present application further provides an inter-carrier load adjustment device, and the inter-carrier load adjustment device is used to perform the foregoing inter-carrier load adjustment method. Part or all of the method for adjusting the inter-carrier load may be implemented by hardware or software.
可选的,载波间负载的调整设备在具体实现时可以是芯片或者集成电路。Optionally, the device for adjusting the load between carriers may be a chip or an integrated circuit in a specific implementation.
可选的,当上述实施例的载波间负载的调整方法中的部分或全部通过软件来实现时,载波间负载的调整设备包括:存储器,用于存储程序;处理器,用于执行存储器存储的程序,当程序被执行时,使得载波间负载的调整设备可以实现上述实施例提供的载波间负载的调整方法。Optionally, when part or all of the method for adjusting the inter-carrier load in the above embodiment is implemented by software, the device for adjusting the inter-carrier load includes: a memory for storing a program; a processor for executing the memory storage A program, when the program is executed, enables the device for adjusting the load between carriers to implement the method for adjusting the load between carriers provided in the above embodiments.
如图8所示,该设备8000可包括:As shown in FIG. 8, the device 8000 may include:
接收器81、发射器82、存储器83和处理器84(网络设备中的处理器84的数量可以一个或多个,图8中以一个处理器为例)。在本发明的一些实施例中,接收器81、发射器82、存储器83和处理器84可通过总线或其它方式连接,其中,图8中以通过总线连接为例。The receiver 81, the transmitter 82, the memory 83, and the processor 84 (the number of the processor 84 in the network device may be one or more, and one processor is taken as an example in FIG. 8). In some embodiments of the present invention, the receiver 81, the transmitter 82, the memory 83, and the processor 84 may be connected through a bus or in other ways. In FIG. 8, connection through a bus is used as an example.
其中,处理器84用于执行以下步骤:The processor 84 is used to perform the following steps:
实时检测多个载波间的负载;Real-time detection of the load between multiple carriers;
当确定第一载波与所述多个载波中的其它任意一个载波的负载差值大于或等于负载阈值时,选择所述第一载波上的处于第一状态的终端设备,所述第一状态包括CELL_PCH态或URA_PCH态;When it is determined that the load difference between the first carrier and any one of the multiple carriers is greater than or equal to the load threshold, the terminal device in the first state on the first carrier is selected, the first state includes CELL_PCH state or URA_PCH state;
根据选择的所述处于第一状态的终端设备,确定第二载波;Determine the second carrier according to the selected terminal device in the first state;
向所述第二载波发送重定向命令,所述重定向命令用于请求将所述处于第一状态的终端设备重定向至所述第二载波,所述重定向命令包括所述第二载波的标识。Sending a redirection command to the second carrier, where the redirection command is used to request that the terminal device in the first state is redirected to the second carrier, and the redirection command includes the second carrier's Logo.
在一个实现方式中,所述处理器84还用于执行如下操作:在所述第一载波上释放所述终端设备与网络的连接。In an implementation manner, the processor 84 is further configured to perform the following operation: release the connection between the terminal device and the network on the first carrier.
在另一个实现方式中,所述终端设备重定向至所述第二载波后,进入空闲态。In another implementation manner, after redirecting to the second carrier, the terminal device enters an idle state.
又一个实现方式中,所述处理器84执行所述根据选择的所述处于第一状态的终端设备,确定第二载波的步骤,包括:根据选择的所述处于第一状态的终端设备的数量以及所述多个载波中的其它任意一个载波上的负载,确定所述第二载波。In another implementation manner, the processor 84 performs the step of determining the second carrier according to the selected terminal device in the first state, including: according to the number of selected terminal devices in the first state And the load on any one of the multiple carriers, to determine the second carrier.
在又一个实现方式中,所述第二载波为所述多个载波中负载最小的载波。In yet another implementation, the second carrier is the carrier with the smallest load among the multiple carriers.
可选的,上述存储器可以是物理上独立的单元,也可以与处理器集成在一起。Optionally, the above memory may be a physically independent unit, or may be integrated with the processor.
可选的,当上述实施例的载波间负载的调整方法中的部分或全部通过软件实现时,载波间负载的调整设备也可以只包括处理器。用于存储程序的存储器位于载波间负载的调整设备之外,处理器通过电路/电线与存储器连接,用于读取并执行存储器中存储的程序。Optionally, when part or all of the method for adjusting the inter-carrier load in the above embodiment is implemented by software, the device for adjusting the inter-carrier load may also include only the processor. The memory for storing the program is located outside the adjustment device for the load between the carriers, and the processor is connected to the memory through a circuit/wire to read and execute the program stored in the memory.
处理器可以是中央处理器(central processing unit,CPU),网络处理器(network processor,NP)或者CPU和NP的组合。The processor may be a central processing unit (CPU), a network processor (NP), or a combination of CPU and NP.
处理器还可以进一步包括硬件芯片。上述硬件芯片可以是专用集成电路(application-specific integrated circuit,ASIC),可编程逻辑器件(programmable logic device,PLD)或其组合。上述PLD可以是复杂可编程逻辑器件(complex programmable logic device,CPLD),现场可编程逻辑门阵列(field-programmable gate array,FPGA),通用阵列逻辑(generic array logic,GAL)或其任意组合。The processor may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The above PLD may be a complex programmable logic device (complex programmable logic device, CPLD), a field programmable logic gate array (field-programmable gate array, FPGA), a general array logic (generic array logic, GAL), or any combination thereof.
存储器可以包括易失性存储器(volatile memory),例如随机存取存储器(random-access memory,RAM);存储器也可以包括非易失性存储器(non-volatile memory),例如快闪存储器(flash memory),硬盘(hard disk drive,HDD)或固态硬盘(solid-state drive,SSD);存储器还可以包括上述种类的存储器的组合。The memory may include volatile memory (volatile memory), such as random-access memory (RAM); the memory may also include non-volatile memory (non-volatile memory), such as flash memory (flash memory) , Hard disk drive (HDD) or solid-state drive (SSD); memory can also include a combination of the above types of memory.
根据本申请实施例提供的一种载波间负载的调整设备,终端设备处于CELL_PCH态或URA_PCH态时,极有可能很快进入业务传输过程,通过实时检测多个载波间的负载,当确定第一载波与多个载波中的其它任意一个载波的负载差值大于或等于负载阈值时,选择第一载波上的处于CELL_PCH态或URA_PCH态的终端设备,确定第二载波,并将终端设备重定向至第二载波。提前将处于CELL_PCH态或URA_PCH态且位于负载过大的载波上的终端设备重定向至负载较小的载波,可以使得终端设备在进入业务传输过程中时,均衡载波间的负载,能够给终端设备提供足够的资源分配,从而保证业务的正常进行。According to an inter-carrier load adjustment device provided by an embodiment of the present application, when a terminal device is in the CELL_PCH state or URA_PCH state, it is highly likely that the terminal will quickly enter the service transmission process. By detecting the load between multiple carriers in real time, when determining the first When the load difference between the carrier and any one of the multiple carriers is greater than or equal to the load threshold, select the terminal device in the CELL_PCH state or URA_PCH state on the first carrier, determine the second carrier, and redirect the terminal device to The second carrier. Redirect the terminal equipment in the CELL_PCH state or URA_PCH state and located on the carrier with excessive load to the carrier with a lighter load in advance, which can make the terminal equipment balance the load between the carriers when entering the service transmission process, which can give the terminal equipment Provide sufficient resource allocation to ensure the normal operation of the business.
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。Those skilled in the art can clearly understand that for the convenience and conciseness of the description, the specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiments, which will not be repeated here.
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,该单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如,多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。所显示或讨论的相互之间的耦合、或直接耦合、或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method may be implemented in other ways. For example, the division of the unit is only a logical function division, and there may be other divisions in actual implementation. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored, or not carried out. The displayed or discussed mutual coupling, direct coupling, or communication connection may be indirect coupling or communication connection through some interfaces, devices, or units, and may be in electrical, mechanical, or other forms.
作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
在上述实施例中,可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时,可以全部或部分地以计算机程序产品的形式实现。该计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行该计算机程序指令时,全部或部分地产生按照本申请实施例的流程或功能。该计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。该计算机指令可以存储在计算机可读存储介质中,或者通过该计算机可读存储介质进行传输。该计算机指令可以从一个网站站点、计算机、服务器或 数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line,DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。该计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。该可用介质可以是只读存储器(read-only memory,ROM),或随机存储存储器(random access memory,RAM),或磁性介质,例如,软盘、硬盘、磁带、磁碟、或光介质,例如,数字通用光盘(digital versatile disc,DVD)、或者半导体介质,例如,固态硬盘(solid state disk,SSD)等。In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium or transmitted through the computer-readable storage medium. The computer instructions can be transferred from a website, computer, server or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) to another A website site, computer, server or data center for transmission. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device including one or more available medium integrated servers, data centers, and the like. The available media may be read-only memory (ROM), or random access memory (RAM), or magnetic media, such as floppy disks, hard disks, magnetic tapes, magnetic disks, or optical media, such as, Digital versatile disc (DVD), or semiconductor media, for example, solid state disk (SSD), etc.

Claims (17)

  1. 一种载波间负载的调整方法,其特征在于,包括:A method for adjusting the load between carriers, which includes:
    实时检测多个载波间的负载;Real-time detection of the load between multiple carriers;
    当确定第一载波与所述多个载波中的其它任意一个载波的负载差值大于或等于负载阈值时,选择所述第一载波上的处于第一状态的终端设备,所述第一状态包括CELL_PCH态或URA_PCH态;When it is determined that the load difference between the first carrier and any one of the multiple carriers is greater than or equal to the load threshold, the terminal device in the first state on the first carrier is selected, the first state includes CELL_PCH state or URA_PCH state;
    根据选择的所述处于第一状态的终端设备,确定第二载波;Determine the second carrier according to the selected terminal device in the first state;
    向所述第二载波发送重定向命令,所述重定向命令用于请求将所述处于第一状态的终端设备重定向至所述第二载波,所述重定向命令包括所述第二载波的标识。Sending a redirection command to the second carrier, where the redirection command is used to request that the terminal device in the first state is redirected to the second carrier, and the redirection command includes the second carrier's Logo.
  2. 如权利要求1所述的方法,其特征在于,还包括:The method of claim 1, further comprising:
    在所述第一载波上释放所述终端设备与网络的连接。Releasing the connection between the terminal device and the network on the first carrier.
  3. 如权利要求1或2所述的方法,其特征在于,所述终端设备重定向至所述第二载波后,进入空闲态。The method according to claim 1 or 2, wherein the terminal device enters an idle state after being redirected to the second carrier.
  4. 如权利要求1~3任一项所述的方法,其特征在于,所述根据选择的所述处于第一状态的终端设备,确定第二载波,包括:The method according to any one of claims 1 to 3, wherein the determining the second carrier according to the selected terminal device in the first state includes:
    根据选择的所述处于第一状态的终端设备的数量以及所述多个载波中的其它任意一个载波上的负载,确定所述第二载波。The second carrier is determined according to the number of selected terminal devices in the first state and the load on any other carrier among the multiple carriers.
  5. 如权利要求4所述的方法,其特征在于,所述第二载波为所述多个载波中负载最小的载波。The method according to claim 4, wherein the second carrier is the carrier with the smallest load among the plurality of carriers.
  6. 一种载波间负载的调整装置,其特征在于,包括:A device for adjusting the load between carriers, characterized in that it includes:
    检测单元,用于实时检测多个载波间的负载;Detection unit, used to detect the load between multiple carriers in real time;
    选择单元,用于当确定第一载波与所述多个载波中的其它任意一个载波的负载差值大于或等于负载阈值时,选择所述第一载波上的处于第一状态的终端设备,所述第一状态包括CELL_PCH态或URA_PCH态;The selection unit is used to select the terminal device in the first state on the first carrier when it is determined that the load difference between the first carrier and any one of the multiple carriers is greater than or equal to the load threshold The first state includes the CELL_PCH state or the URA_PCH state;
    确定单元,用于根据选择的所述处于第一状态的终端设备,确定第二载波;A determining unit, configured to determine the second carrier according to the selected terminal device in the first state;
    重定向单元,用于向所述第二载波发送重定向命令,所述重定向命令用于请求将所述处于第一状态的终端设备重定向至所述第二载波,所述重定向命令包括所述第二载波的标识。A redirection unit, configured to send a redirection command to the second carrier, the redirection command is used to request that the terminal device in the first state is redirected to the second carrier, and the redirection command includes The identifier of the second carrier.
  7. 如权利要求6所述的装置,其特征在于,还包括:The apparatus of claim 6, further comprising:
    释放单元,用于在所述第一载波上释放所述终端设备与网络的连接。The releasing unit is configured to release the connection between the terminal device and the network on the first carrier.
  8. 如权利要求6或7所述的装置,其特征在于,所述终端设备重定向至所述第二载波后,进入空闲态。The apparatus according to claim 6 or 7, wherein the terminal device enters an idle state after being redirected to the second carrier.
  9. 如权利要求6~8任一项所述的装置,其特征在于,所述确定单元用于根据选择的所述处于第一状态的终端设备的数量以及所述多个载波中的其它任意一个载波上的负载,确定所述第二载波。The apparatus according to any one of claims 6 to 8, wherein the determining unit is configured to select any one of the plurality of carriers according to the selected number of terminal devices in the first state Load on the second carrier.
  10. 如权利要求9所述的装置,其特征在于,所述第二载波为所述多个载波中负载最小的载波。The apparatus of claim 9, wherein the second carrier is the carrier with the smallest load among the plurality of carriers.
  11. 一种载波间负载的调整设备,其特征在于,包括:接收器、发射器、存储器和处理器;其中,所述存储器中存储一组程序代码,且所述处理器用于调用所述存储器中存储的程序代码,执行以下操作:A device for adjusting load between carriers, comprising: a receiver, a transmitter, a memory, and a processor; wherein, the memory stores a set of program codes, and the processor is used to call the memory to store Program code, do the following:
    实时检测多个载波间的负载;Real-time detection of the load between multiple carriers;
    当确定第一载波与所述多个载波中的其它任意一个载波的负载差值大于或等于负载阈值时,选择所述第一载波上的处于第一状态的终端设备,所述第一状态包括CELL_PCH态或URA_PCH态;When it is determined that the load difference between the first carrier and any one of the multiple carriers is greater than or equal to the load threshold, the terminal device in the first state on the first carrier is selected, the first state includes CELL_PCH state or URA_PCH state;
    根据选择的所述处于第一状态的终端设备,确定第二载波;Determine the second carrier according to the selected terminal device in the first state;
    向所述第二载波发送重定向命令,所述重定向命令用于请求将所述处于第一状态的终端设备重定向至所述第二载波,所述重定向命令包括所述第二载波的标识。Sending a redirection command to the second carrier, where the redirection command is used to request that the terminal device in the first state is redirected to the second carrier, and the redirection command includes the second carrier's Logo.
  12. 如权利要求11所述的设备,其特征在于,所述处理器还用于执行如下操作:The device according to claim 11, wherein the processor is further configured to perform the following operations:
    在所述第一载波上释放所述终端设备与网络的连接。Releasing the connection between the terminal device and the network on the first carrier.
  13. 如权利要求11或12所述的设备,其特征在于,所述终端设备重定向至所述第二载波后,进入空闲态。The device according to claim 11 or 12, wherein the terminal device enters an idle state after being redirected to the second carrier.
  14. 如权利要求11~13任一项所述的设备,其特征在于,所述处理器执行所述根据选择的所述处于第一状态的终端设备,确定第二载波的步骤,包括:The device according to any one of claims 11 to 13, wherein the processor performs the step of determining the second carrier according to the selected terminal device in the first state, including:
    根据选择的所述处于第一状态的终端设备的数量以及所述多个载波中的其它任意一个载波上的负载,确定所述第二载波。The second carrier is determined according to the number of selected terminal devices in the first state and the load on any other carrier among the multiple carriers.
  15. 如权利要求14所述的设备,其特征在于,所述第二载波为所述多个载波中负载最小的载波。The apparatus according to claim 14, wherein the second carrier is the carrier with the smallest load among the plurality of carriers.
  16. 一种计算机可读存储介质,所述计算机可读存储介质中存储有指令,当其在计算机上运行时,使得计算机执行如权利要求1~5任一项所述的方法。A computer-readable storage medium having instructions stored therein, which when executed on a computer, causes the computer to execute the method according to any one of claims 1 to 5.
  17. 一种包含指令的计算机程序产品,当所述指令在计算机上运行时,使得计算机执行如权利要求1~5任一项所述的方法。A computer program product containing instructions, which when executed on a computer, causes the computer to execute the method according to any one of claims 1 to 5.
PCT/CN2019/125766 2018-12-17 2019-12-16 Inter-carrier load adjustment method and device WO2020125597A1 (en)

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