CN109600796B

CN109600796B - Method and device for adjusting load between carriers

Info

Publication number: CN109600796B
Application number: CN201811539829.3A
Authority: CN
Inventors: 龚磊; 姚凤阳
Original assignee: Huawei Technical Service Co Ltd
Current assignee: Huawei Technical Service Co Ltd
Priority date: 2018-12-17
Filing date: 2018-12-17
Publication date: 2020-09-29
Anticipated expiration: 2038-12-17
Also published as: CN109600796A; WO2020125597A1

Abstract

The application discloses a method and a device for adjusting load between carriers. When the terminal equipment is in a CELL _ PCH state or a URA _ PCH state, the terminal equipment is very likely to enter a service transmission process very quickly. By detecting the load among the multiple carriers in real time, when the load difference value between the first carrier and any other carrier in the multiple carriers is determined to be larger than or equal to the load threshold value, selecting the terminal equipment in the CELL _ PCH state or the URA _ PCH state on the first carrier, determining the second carrier, and redirecting the terminal equipment to the second carrier. The terminal equipment which is in a CELL _ PCH state or a URA _ PCH state and is positioned on the carrier with the overlarge load is redirected to the carrier with the small load in advance, so that the load among the carriers can be balanced when the terminal equipment enters a service transmission process, sufficient resource allocation can be provided for the terminal equipment, and the normal operation of the service is ensured.

Description

Method and device for adjusting load between carriers

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for adjusting a load between carriers.

Background

A Universal Mobile Telecommunications System (UMTS) network is a multi-carrier network, and there are two-carrier networks, three-carrier networks and at most seven-carrier networks. However, in the current network, due to frequency point differences among carriers, Radio Remote Unit (RRU) capability differences, differences in antenna models, heights, and the like, coverage areas among carriers also differ, which causes user number differences among carriers, that is, load imbalance among carriers, a large number of carriers, high power and code word consumption, poor user experience, a small number of carriers, and low resource utilization rate.

The terminal equipment has the following user states in the network: idle (idle) state, CELL _ PCH (a RRCconnected mode neighbor DCCH nor DTCH is available, only can use paging channel for current CELL) state, CELL _ dch (a RRC connected mode neighbor DCCH and DTCH area available) state, and CELL _ FACH (a RRC connected mode neighbor DCCH neighbor access 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 neighbor dccH norDSCH is available, can use paging channel for the same cells) state. . When the terminal equipment is in an idle state, a CELL _ DCH state and a CELL _ FACH state, corresponding inter-carrier load adjustment schemes already exist.

However, in the retention policy in the IDEL state (mainly, the random retention policy for users in the IDEL state), for example, the lowest access threshold of the F1 carrier user is set to-18 dB, and the lowest access threshold of the F2 carrier user is set to-14 dB, because the thresholds need to be manually set, the load conditions of different sites are different, and the load changes along with the busy and idle time, a reasonable and real-time setting scheme cannot be provided.

In a service process (that is, the terminal device is in the CELL _ FACH state), a handover policy (mainly including a Direct Retry Decision (DRD) and a load reshuffling (LDR) policy) is applied, for example, an F1 carrier user is forced to handover an F1 carrier to an F2 carrier during a call or during a web page browsing process. Due to the fact that a switching process is added, time delay is introduced firstly in the switching process, for a blind switching process, Key Performance Indicator (KPI) deterioration problems are introduced due to switching step-on-step switching failure caused by coverage difference among carriers, and user experience is deteriorated due to switching in a service process (silence, noise and time delay experience are introduced in the switching process).

Based on the current scenes of opening Enhanced Fast Dormancy (EFD) and CELL _ PCH, the terminal equipment is in a CELL _ PCH state for a large amount of time, users in the CELL _ PCH state account for more than 50%, an idle state residence strategy is not enough to adjust the load between carriers in time, and negative gain brought by a subsequent switching process needs to be reduced.

Therefore, it is desirable to provide an adjustment scheme for inter-carrier loading based on CELL _ PCH state or URA _ PCH state.

Disclosure of Invention

The application provides a method and a device for adjusting inter-carrier load, so as to realize inter-carrier load adjustment when a terminal device is in a CELL _ PCH state or a URA _ PCH state, balance load when subsequent terminal devices perform service transmission, and ensure the provision of resources.

In a first aspect, a method for adjusting load between carriers is provided, including: detecting the load among a plurality of carriers in real time; when determining that the load difference value between a first carrier and any other carrier in the multiple carriers is greater than or equal to a load threshold value, selecting a terminal device in a first state on the first carrier, wherein the first state comprises a CELL _ PCH state or a URA _ PCH state; determining a second carrier according to the selected terminal equipment in the first state; and sending a redirection command to the second carrier, wherein the redirection command is used for requesting to redirect the terminal equipment in the first state to the second carrier, and the redirection command comprises the identifier of the second carrier.

In this aspect, when the terminal device is in the CELL _ PCH state or the URA _ PCH state, it is very likely to enter a service transmission process very quickly, and by detecting the load among the multiple carriers in real time, when it is determined that the load difference between the first carrier and any other one of the multiple carriers is greater than or equal to the load threshold, the terminal device in the CELL _ PCH state or the URA _ PCH state on the first carrier is selected, the second carrier is determined, and the terminal device is redirected to the second carrier. The terminal equipment which is in a CELL _ PCH state or a URA _ PCH state and is positioned on the carrier with the overlarge load is redirected to the carrier with the small load in advance, so that the load among the carriers can be balanced when the terminal equipment enters a service transmission process, sufficient resource allocation can be provided for the terminal equipment, and the normal operation of the service is ensured.

In one possible implementation, the method further includes: and releasing the connection between the terminal equipment and the network on the first carrier.

In another possible implementation manner, the terminal device enters an idle state after being redirected to the second carrier.

In another possible implementation manner, the determining, according to the selected terminal device in the first state, a second carrier includes: and determining the second carrier according to the number of the selected terminal equipment in the first state and the load on any other carrier in the plurality of carriers.

In yet another possible implementation manner, the second carrier is a carrier with a smallest load among the plurality of carriers.

In this implementation, the terminal device is redirected to the carrier with the smallest load, which is beneficial to load balancing.

In a second aspect, an apparatus or device for adjusting load between carriers is provided, which may implement the communication method in the first aspect. The adjusting means of the inter-carrier load may be a chip or a radio network controller, for example. The above-described method may be implemented by software, hardware, or by executing corresponding software by hardware.

In a possible implementation manner, the structure of the device for adjusting the inter-carrier load includes a processor and a memory; the processor is configured to support the apparatus to perform corresponding functions in the above-described communication method. The memory is used for coupling with the processor, which holds the necessary programs (instructions) and/or data for the device. Optionally, the device for adjusting an inter-carrier load may further include a communication interface for supporting communication between the device and other network elements.

In another possible implementation manner, the device for adjusting the inter-carrier load may include a unit module that performs corresponding actions in the foregoing method.

In yet another possible implementation, the wireless communication device includes a processor and a transceiver, the processor is coupled to the transceiver, and the processor is configured to execute a computer program or instructions to control the transceiver to receive and transmit information; the processor is further configured to implement the above-described method when the processor executes the computer program or instructions. The transceiver may be a transceiver, a transceiver circuit, or an input/output interface. And when the adjusting device of the load between the carriers is a chip, the transceiver is a transceiver circuit or an input/output interface.

When the adjusting device of the inter-carrier load is a chip, the sending unit may be an output unit, such as an output circuit or a communication interface; the receiving unit may be an input unit, such as an input circuit or a communication interface. When the adjusting device of 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.

In a third aspect, a computer-readable storage medium is provided, having stored therein instructions, which, when run on a computer, cause the computer to perform the method of the above aspects.

In a fourth aspect, there is provided a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the above aspects.

Drawings

In order to more clearly illustrate 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.

Fig. 1 is a schematic diagram of load adjustment between carriers based on different load balancing strategies;

FIG. 2 is a flow diagram of a direct retry decision;

FIG. 3 is a schematic flow chart of pilot frequency load balancing;

fig. 4 is a flowchart illustrating a method for adjusting inter-carrier load according to an embodiment of the present application;

fig. 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 adopted when the terminal device is in different states;

fig. 7 is a schematic block structure diagram of an apparatus for adjusting an inter-carrier load according to an embodiment of the present disclosure;

fig. 8 is a schematic structural diagram of an apparatus for adjusting an inter-carrier load according to an embodiment of the present application.

Detailed Description

The embodiments of the present application will be described below with reference to the drawings.

The network in the present application may be a UMTS network or other networks. The network is a multi-carrier networking. Each carrier or each frequency band corresponds to a cell. The cells corresponding to these multiple carriers may belong to one network device, or belong to multiple network devices, and the multiple network devices are controlled by a Radio Network Controller (RNC).

The network device may be a device that is capable of communicating with the terminal device. The network device may be any device having a wireless transceiving function. Including but not limited to: a base station NodeB, an evolved node b, a base station in the fifth generation (5G) communication system, a base station or network device in a future communication system, an access node in a WiFi system, a wireless relay node, a wireless backhaul node, and the like. 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, a Transmission Reference Point (TRP), or the like. The embodiments of the present application do not limit the specific technologies and the specific device forms used by the network devices.

The terminal equipment has a wireless transceiving function, can be deployed on land and comprises an indoor or outdoor, a handheld, a wearable or a vehicle-mounted terminal; can also be deployed on the water surface, such as a ship and the like; and may also be deployed in the air, such as airplanes, balloons, satellites, and the like. The terminal device may be a mobile phone (mobile phone), a tablet computer (pad), a computer with wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in self-driving (self-driving), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), and so on. The embodiments of the present application do not limit the application scenarios. A terminal device may also sometimes be referred to as a User Equipment (UE), an access terminal device, a UE unit, a mobile station, a remote terminal device, a mobile device, a terminal (terminal), a wireless communication device, a UE agent, a UE device, or the like.

It should be noted that the terms "system" and "network" in the embodiments of the present application may be used interchangeably. The "plurality" means two or more, and in view of this, the "plurality" may also be understood as "at least two" in the embodiments of the present application. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" generally indicates that the preceding and following related objects are in an "or" relationship, unless otherwise specified.

First, four states of the UE referred to in this application are briefly introduced:

CELL _ DCH State

The UE occupies special channel resources, occupies more wireless resources and is suitable for high-speed continuous data transmission.

CELL _ FACH state

The UE uses the common channel to send or receive data, and occupies less resources. Due to the resource limitations of RACH and FACH, the CELL FACH state is suitable for low-speed data transmission.

CELL _ PCH State

In the uplink direction, the UE cannot send signaling messages. And if the uplink data is to be sent, the uplink data needs to be transferred to a CELL _ FACH or CELL _ DCH state through a CELL UPDATE process.

In the downlink direction, the UE monitors information on the PCH channel at a specific paging time to receive paging using a Discontinuous Reception (DRX) technique. If the UE in the CELL _ PCH state is in the WCDMA network, the UTRAN can obtain the CELL where the UE is currently located, and page the UE within the CELL. After moving to a new CELL, the UE needs to perform CELL reselection through a CELL Update message.

URA _ PCH State

The difference from the CELL _ PCH state is that if the UE in the URA _ PCH state is in the WCDMA network, the UTRAN can obtain the UTRAN Registration Area (URA) where the UE is currently located and page the UE within the URA. The UE needs to make a URA change through a URA UPDATE message after moving to a new URA.

Then, the following introduces the inter-carrier load balancing strategy and the service guarantee strategy in idle state, CELL _ DCH state, and CELL _ FACH state:

based on the carrier difference and in combination with the client appeal, the existing network needs a plurality of adjustment actions to realize the adjustment of the carrier load and meet the client appeal. For example, in a scenario of a multi-carrier networking priority guarantee voice service, in order to guarantee the voice service preferentially, a tendency to camp on service layering strategy may be adopted, for example, dividing into F1-Fn carriers. All carriers support R99 traffic and High Speed Packet Access (HSPA) traffic (referred to as "H traffic"), and F1 preferentially carries R99 traffic, and F2, F3, F4, …, Fn preferentially carries H traffic.

And (3) a residence strategy:

the users in the idle, CELL _ PCH and URA _ PCH states tend to stay F1. In order to make the idle state users of F2, F3, F4, …, Fn CELLs reselect to F1 faster, the users in idle, CELL _ PCH and URA _ PCH states tend to camp on F1. And the CELL _ FACH state user is processed independently and resides in the original carrier.

Access state policy (policy corresponding to CELL _ DCH state):

voice services and combinational services are accessed directly in the source cell (the cell that the user accesses during RRC phase).

Data service

1) And accessing to other cells in a layered mode based on the satisfaction degree of the HSPA + technology, and using a DRD mode.

2) And accessing to other cells based on service layering and using a DRD mode.

3) Accessing to other cells in a layered mode based on load and the like, and using a DRD mode.

Connected state policy (policy corresponding to CELL _ FACH state):

load-based inter-frequency handover;

inter-frequency handover based on coverage.

Wherein, the load-based inter-frequency switching comprises an LDR strategy and the like. The coverage based inter-frequency handover may specifically be a signal coverage based inter-frequency handover.

Regarding the above several inter-carrier load balancing policies and service provisioning policies, as shown in fig. 1, a schematic diagram of load adjustment between carriers based on different load balancing policies is shown, and in an idle state, F1 preferentially carries an R99 service. F2, F3 and F4 … Fn bear H traffic preferentially. When the UE performing H traffic on F2, F3, and F4 … Fn enters an idle state, it may switch to F1, and such a switching policy may be referred to as biased camping; when the UE access network in idle state at F1 enters connected state, it may blindly switch (blindhandover, blindho) to any carrier of F2, F3, F4 … Fn; if the loads of F2, F3, and F4 … Fn are too large, the UE in the connected state may also be inter-frequency switched (inter-freq HO) from any one of the currently located F2, F3, and F4 … Fn to any other one of the F2, F3, and F4 … Fn, as shown in fig. 1, and the UE in the connected state on Fn, F4 is switched to F3.

Specifically, for an idle-state camping policy, idle-state camping policy parameters shown in tables 1 to 2 need to be manually set, and are carried to the UE through a system message, the UE cannot acquire the load of each carrier on the network side at this time, and the UE completes reselection and camping between carriers based on the following parameter configuration and in combination with conditions such as coverage. Tables 1-2 below are described with examples of handovers of F1-F3 carriers or cells, and handovers of other carriers may refer to the setting of these parameters.

TABLE 1

TABLE 2

Where IdleQoffset2sn) represents a parameter that enforces a tendency to camp on.

For the switching strategy in the service process, there are mainly DRD and LDR strategies.

DRD refers to a process of selecting a suitable cell for UE access by RNC, and is one of methods for UE to access network. Fig. 2 is a flow chart illustrating a direct retry decision. As shown in fig. 2, the flow of DRD includes:

s201, the RNC triggers the DRD according to the relevant conditions.

S202, the RNC screens the DRD candidate neighbor cells meeting the conditions.

S203, the RNC selects the target cell to perform access attempt.

And S204, judging whether the cell is accessed successfully.

S205, if the access is successful, the DRD is successful, and the process is finished.

S206, if the access fails, the DRD fails, and the process goes to S207.

And S207, processing the cell access failure.

Specifically, the cell access failure processing includes: if the inter-frequency DRD fails, the inter-system DRD can be executed; and if the inter-system DRD fails, ending the process. The different systems refer to communication systems of different systems, such as GSM, LTE, and the like.

The pilot frequency load balancing characteristic supports that when the cell is in a primary congestion state, part of users are switched to the pilot frequency same-coverage cell so as to reduce the load of the cell. This characteristic is also referred to as inter-frequency load switching. Fig. 3 is a schematic flow chart of pilot frequency load balancing, where the flow chart of LDR pilot frequency load balancing includes:

s301, the RNC triggers LDR pilot frequency load balance according to relevant conditions (for example, whether the load threshold of each resource of the cell reaches the LDR threshold). The CELL is in CELL _ FACH state, and RNC screens the users meeting the conditions to perform the different frequency switching action.

The LDR is directed to a resource congestion state, and some actions are required to release the resource congestion state. And inter-frequency handover is one of these actions. When the LDR pilot frequency load balancing function is turned on, pilot frequency switching action is triggered.

S302, configuring an LDR switching strategy. Among them, blind handover takes precedence.

S303, judging whether the adjacent cell meeting the condition is blindly switched.

S304, if the blind switching adjacent cell which meets the condition exists, executing blind switching action, and selecting the configured blind switching adjacent cell to execute pilot frequency blind switching.

S305, if no qualified blind switching adjacent cell exists, judging whether a qualified measurement switching adjacent cell exists.

S306, if the pilot frequency switching is based on the measurement, selecting the pilot frequency adjacent cell which meets the condition based on the measurement report to execute the pilot frequency switching.

And S307, finishing the LDR action, and judging whether to execute the next LDR action by the RNC based on the current load.

S308, in S305, if there is no measurement handover neighbor cell that meets the condition, the next LDR operation is performed.

However, as mentioned above, the camping policy in idle mode (mostly random camping policy for idle mode users), such as the lowest access threshold for F1 carrier users being set to-18 dB, and the lowest access threshold for F2 carrier users being set to-14 dB. However, the threshold needs to be manually set, the load conditions of different stations are different, and the load can change along with the busy and idle time, so that a reasonable and real-time setting scheme cannot be provided.

In-service switching strategies (mainly including DRD and LDR strategies), for example, during a call or web browsing process, the F1 carrier user is forced to switch the F1 carrier to the F2 carrier. Due to the fact that the switching process is added, time delay is introduced firstly in the switching process, for the blind switching process, KPI deterioration problems are introduced due to switching step-on-step switching failure caused by coverage difference among carriers, and user experience is poor due to switching in the service process (silence, noise and time delay experience are introduced in the switching process).

According to the method and the device, based on the current opened EFD and CELL _ PCH scenes, the UE is in the CELL _ PCH state for a large amount of time. The ratio of PCH state users is more than 50%, the idle state resident strategy is not enough to adjust the inter-carrier RRC times and RAB stage DRD times, the inter-carrier load is not adjusted in time, the idle state distribution of the redirected users among the carriers is adjusted by the PCH state redirection strategy in combination with the inter-carrier load (in CELL _ PCH state, RNC can obtain the inter-carrier load condition), and the negative gain brought by the subsequent switching process can be reduced. It should be noted that the PCH state includes a CELL _ PCH state and a URA _ PCH state, and the technical scheme of the present application is also applicable to the URA _ PCH state, and the implementation procedures are the same.

Fig. 4 is a flowchart illustrating a method for adjusting inter-carrier load according to an embodiment of the present application, specifically, inter-carrier load balancing based on a PCH state. The adjustment of the inter-carrier load may be performed by the RNC, but may also be other controllers or network devices. This embodiment will be described by taking the RNC as an example to adjust the inter-carrier load. The method comprises the following steps:

s401, detecting the load among a plurality of carriers in real time.

A office point in the network may include multiple carriers, for example, there may be up to 7 carriers. And the RNC detects the load among the carriers in real time. The inter-carrier load is the difference between the loads of the two carriers.

S402, when the load difference value between the first carrier and any other carrier in the plurality of carriers is determined to be larger than or equal to a load threshold value, selecting the terminal equipment in a first state on the first carrier, wherein the first state comprises a CELL _ PCH state or a URA _ PCH state.

And triggering the adjustment of the load among the carriers, wherein a load threshold among the carriers exists, and when the load difference value of one carrier (the first carrier) and any other carrier is greater than or equal to the threshold, the adjustment of the load among the carriers is triggered. For example, load of F1-load of F2 > the inter-carrier load threshold, then load adjustment of F1 is triggered.

There may be UEs in different states on the first carrier, from which UEs in CELL _ PCH state or URA _ PCH state are selected. The CELL _ PCH state or URA _ PCH state, i.e., the UE inactivity timer, is not expired to release to idle state and does not trigger state transitions. The UE in the CELL _ PCH state or the URA _ PCH state may be selected from UEs in the CELL _ PCH state or the URA _ PCH state on the first carrier, or UEs in the CELL _ PCH state or the URA _ PCH state on the first carrier. There are various strategies to choose from, and not be limiting herein.

S403, determining a second carrier according to the selected terminal equipment in the first state.

The second carrier is the carrier after the UE in the CELL _ PCH state or the URA _ PCH state is switched. And determining a second carrier, wherein after the UE in the CELL _ PCH state or the URA _ PCH state needs to be ensured to be switched to the second carrier and enters a connection state, the second carrier can ensure the resource allocation of the UE thereon and ensure the normal operation of services. In other words, it is determined whether the second carrier satisfies the load sharing condition.

Specifically, S403 includes: and determining the second carrier according to the number of the selected terminal equipment in the first state and the load on any other carrier in the plurality of carriers. Optionally, the second carrier is a carrier with a smallest load among the multiple carriers. I.e. considering the number of UEs that are about to switch to the past CELL _ PCH state or URA _ PCH state, if the number is too large, it is considered whether the second carrier is the best-loaded carrier, e.g. the least loaded carrier among the other carriers than the first carrier.

S404, sending a redirection command to the second carrier, where the redirection command is used to request that the terminal device in the first state be redirected to the second carrier, and the redirection command includes an identifier of the second carrier.

Optionally, the terminal device enters an idle state after being redirected to the second carrier.

Optionally, after S404, the following steps may be further included: and releasing the connection between the terminal equipment and the network on the first carrier.

As shown in fig. 5, for terminal device redirection based on CELL _ PCH state, before adjustment, the RNC detects that there are 3 UEs in CELL _ PCH state in F1, and there are only 1 UE in CELL _ PCH state in F2, assuming that there are only UEs in CELL _ PCH state in F1 and F2. Assuming that the threshold value of the inter-carrier load difference is 1, the load on F1 — the load on F2 is 2, exceeding the threshold value. Then the UE in CELL _ PCH state is redirected, 1 UE in CELL _ PCH state on F1 is redirected to F2 carrier, and the network connection of the UE in CELL _ PCH state on F1 and F2 is broken, and the UE in CELL _ PCH state on F1 and F2 enters idle state. After adjustment, 2 UEs on F1 and F2 are both, and load balancing is achieved.

The RNC monitors the load difference among the carriers in real time, adjusts the threshold through the set load, when the load difference among the carriers exceeds the set threshold, the RNC selects a target frequency point through the load judgment result among the carriers, then selects a CELL _ PCH state user to trigger the RRC to release a redirection function to the target frequency point, and the target frequency point resource is consumed when the user accesses the network again, thereby reducing the load of the current CELL.

In the process of adjusting the load between carriers, a CELL-PCH state user is selected to trigger a redirection function released by RRC by introducing a CELL-PCH state inter-carrier load judgment flow and based on an inter-carrier load judgment result, so that the load between carriers is balanced by adjusting the user residence between carriers, the CELL-PCH state is similar to an IDEL state aiming at the user, and the user experience and the network KPI cannot be influenced by the load adjustment action at the moment.

Thus, as shown in fig. 6, when the terminal device is in different states, different load balancing strategies may be used for load balancing for UEs in different states. Specifically, as shown in fig. 6 for load adjustment on two carriers F1 and F2, a UE in idle state may tend to reside in F1 or F2 through reselection, a UE in CELL _ DCH state may tend to reside in F1 or F2 through DRD selection, a UE in CELL _ FACH state may tend to reside in F1 or F2 through LDR selection, and a UE in CELL _ PCH state may tend to reside in F1 or F2 based on the load adjustment method of the present application. Therefore, the load balancing strategies of the UE in different states are perfected.

According to the method for adjusting the load between the carriers provided by the embodiment of the application, when the terminal device is in the CELL _ PCH state or the URA _ PCH state, the terminal device is very likely to enter a service transmission process very quickly, by detecting the load between the multiple carriers in real time, when the load difference between the first carrier and any other carrier of the multiple carriers is determined to be greater than or equal to the load threshold, the terminal device in the CELL _ PCH state or the URA _ PCH state on the first carrier is selected, the second carrier is determined, and the terminal device is redirected to the second carrier. The terminal equipment which is in a CELL _ PCH state or a URA _ PCH state and is positioned on the carrier with the overlarge load is redirected to the carrier with the small load in advance, so that the load among the carriers can be balanced when the terminal equipment enters a service transmission process, sufficient resource allocation can be provided for the terminal equipment, and the normal operation of the service is ensured.

The method of the embodiments of the present application is set forth above in detail, and the apparatus and device of the embodiments of the present application are provided below.

Based on the same concept of the method for adjusting the inter-carrier load in the foregoing embodiment, as shown in fig. 7, the embodiment of the present application further provides an apparatus 7000 for adjusting the inter-carrier load, which can be applied to the method shown in fig. 4. The apparatus may be an RNC. The apparatus 7000 comprises the detecting unit 71, the selecting unit 72, the determining unit 73 and the redirecting unit 74, and may further comprise the releasing unit 75. Wherein:

a detection unit 71, configured to detect a load between multiple carriers in real time;

a selecting unit 72, configured to select a terminal device in a first state on a first carrier when it is determined that a load difference between the first carrier and any other carrier of the multiple carriers is greater than or equal to a load threshold, where the first state includes a CELL _ PCH state or a URA _ PCH state;

a determining unit 73, configured to determine a second carrier according to the selected terminal device in the first state;

a redirecting unit 74, configured to send a redirecting command to the second carrier, where the redirecting command is used to request that the terminal device in the first state be redirected to the second carrier, and the redirecting command includes an identifier of the second carrier.

In one implementation, the releasing unit 75 is configured to release the connection between the terminal device and the network on the first carrier.

In another implementation, the terminal device enters an idle state after being redirected to the second carrier.

In yet another implementation, the determining unit 73 is configured to determine the second carrier according to the number of the selected terminal devices in the first state and the load on any other one of the plurality of carriers.

In yet another implementation, the second carrier is a least loaded carrier of the plurality of carriers.

More detailed descriptions about the detecting unit 71, the selecting unit 72, the determining unit 73, the redirecting unit 74, and the releasing unit 75 can be directly obtained by referring to the description about the adjusting device for inter-carrier load in the method embodiment shown in fig. 4, which is not described herein again.

According to the device for adjusting the load between the carriers provided by the embodiment of the application, when the terminal device is in the CELL _ PCH state or the URA _ PCH state, the terminal device is very likely to enter a service transmission process very quickly, by detecting the load between the multiple carriers in real time, when it is determined that the load difference between the first carrier and any other carrier of the multiple carriers is greater than or equal to the load threshold, the terminal device in the CELL _ PCH state or the URA _ PCH state on the first carrier is selected, the second carrier is determined, and the terminal device is redirected to the second carrier. The terminal equipment which is in a CELL _ PCH state or a URA _ PCH state and is positioned on the carrier with the overlarge load is redirected to the carrier with the small load in advance, so that the load among the carriers can be balanced when the terminal equipment enters a service transmission process, sufficient resource allocation can be provided for the terminal equipment, and the normal operation of the service is ensured.

The embodiment of the present application further provides an inter-carrier load adjusting device, where the inter-carrier load adjusting device is configured to execute the inter-carrier load adjusting method. Part or all of the above-described adjustment method for the inter-carrier load may be implemented by hardware or software.

Optionally, the adjustment device for the inter-carrier load may be a chip or an integrated circuit when implemented specifically.

Optionally, when part or all of the method for adjusting the inter-carrier load in the foregoing embodiment is implemented by software, the apparatus for adjusting the inter-carrier load includes: a memory for storing a program; a processor, configured to execute the program stored in the memory, and when the program is executed, enable the adjustment device for inter-carrier load to implement the adjustment method for inter-carrier load provided in the foregoing embodiments.

As shown in fig. 8, the apparatus 8000 may include:

a receiver 81, a transmitter 82, a memory 83 and a processor 84 (the number of processors 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 by a bus or other means, wherein the connection by the bus is exemplified in fig. 8.

Wherein the processor 84 is configured to perform the following steps:

detecting the load among a plurality of carriers in real time;

when determining that the load difference value between a first carrier and any other carrier in the multiple carriers is greater than or equal to a load threshold value, selecting a terminal device in a first state on the first carrier, wherein the first state comprises a CELL _ PCH state or a URA _ PCH state;

determining a second carrier according to the selected terminal equipment in the first state;

and sending a redirection command to the second carrier, wherein the redirection command is used for requesting to redirect the terminal equipment in the first state to the second carrier, and the redirection command comprises the identifier of the second carrier.

In one implementation, the processor 84 is further configured to perform the following operations: and releasing the connection between the terminal equipment and the network on the first carrier.

In still another implementation, the processor 84 executes the step of determining a second carrier according to the selected terminal device in the first state, including: and determining the second carrier according to the number of the selected terminal equipment in the first state and the load on any other carrier in the plurality of carriers.

Alternatively, the memory may be a physically separate unit or may be integrated with the processor.

Optionally, when part or all of the method for adjusting the inter-carrier load in the foregoing embodiment is implemented by software, the apparatus for adjusting the inter-carrier load may also include only a processor. The memory for storing the program is located outside the adjustment device of the inter-carrier load, and the processor is connected with the memory through a circuit/wire for reading and executing the program stored in the memory.

The processor may be a Central Processing Unit (CPU), a Network Processor (NP), or a combination of a CPU and an NP.

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 PLD may be a Complex Programmable Logic Device (CPLD), a field-programmable gate array (FPGA), a General 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 a non-volatile memory (non-volatile) such as a flash memory (flash memory), a Hard Disk Drive (HDD) or a solid-state drive (SSD); the memory may also comprise a combination of memories of the kind described above.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the division of the unit is only one logical function division, and other division may be implemented in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. The shown or discussed mutual coupling, direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some interfaces, and may be in an electrical, mechanical or other form.

Units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may 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. The procedures or functions according to the embodiments of the present application are wholly or partially generated when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on or transmitted over a computer-readable storage medium. The computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)), or wirelessly (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that includes one or more of the available media. The usable medium may be a read-only memory (ROM), or a Random Access Memory (RAM), or a magnetic medium, such as a floppy disk, a hard disk, a magnetic tape, a magnetic disk, or an optical medium, such as a Digital Versatile Disk (DVD), or a semiconductor medium, such as a Solid State Disk (SSD).

Claims

1. A method for adjusting load between carriers is characterized by comprising the following steps:

detecting the load among a plurality of carriers in real time;

sending a redirection command to the second carrier, wherein the redirection command is used for requesting to redirect the terminal equipment in the first state to the second carrier, and the redirection command comprises an identifier of the second carrier;

releasing the connection between the terminal equipment and the network on the first carrier;

and the terminal equipment enters an idle state after being redirected to the second carrier.

2. The method of claim 1, wherein said determining a second carrier based on said selected terminal device in said first state comprises:

and determining the second carrier according to the number of the selected terminal equipment in the first state and the load on any other carrier in the plurality of carriers.

3. The method of claim 2, wherein the second carrier is a least loaded carrier of the plurality of carriers.

4. An apparatus for adjusting an inter-carrier load, comprising:

the detection unit is used for detecting the load among the multiple carriers in real time;

a selecting unit, configured to select a terminal device in a first state on a first carrier when it is determined that a load difference between the first carrier and any other carrier of the multiple carriers is greater than or equal to a load threshold, where the first state includes a CELL _ PCH state or a URA _ PCH state;

a determining unit, configured to determine a second carrier according to the selected terminal device in the first state;

a redirection unit, configured to send a redirection command to the second carrier, where the redirection command is used to request that the terminal device in the first state be redirected to the second carrier, and the redirection command includes an identifier of the second carrier;

a releasing unit, configured to release, on the first carrier, a connection between the terminal device and a network;

5. The apparatus of claim 4, wherein the determining unit is configured to determine the second carrier according to the selected number of terminal devices in the first state and a load on any other one of the plurality of carriers.

6. The apparatus of claim 5, wherein the second carrier is a least loaded carrier of the plurality of carriers.

7. An apparatus for adjusting an inter-carrier load, comprising: a receiver, a transmitter, a memory, and a processor; wherein the memory stores a set of program codes therein, and the processor is configured to call the program codes stored in the memory to perform the following operations:

detecting the load among a plurality of carriers in real time;

8. The device of claim 7, wherein the processor performs the step of determining a second carrier based on the selected terminal device in the first state, comprising:

9. The apparatus of claim 7, wherein the second carrier is a least loaded carrier of the plurality of carriers.

10. A computer readable storage medium having stored therein instructions which, when run on a computer, cause the computer to perform the method of any one of claims 1 to 3.

11. A computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of any of claims 1 to 3.