CN103582018A - Intersystem load control method, access equipment and user equipment - Google Patents

Abstract

The embodiment of the invention discloses an inter-system load control method, access equipment and user equipment. Wherein, the method includes: the first access device of the first network system obtains the access condition information of the second access device of the second network system; the first access device sends the access condition information to the user equipment UE information, so that the UE can determine whether to select the second network system for re-access according to the access condition information, where the UE is in a network covered by the first network system and the second network system area. In the embodiment of the present invention, the access device of the network system obtains the access condition information of the access device of the different system, and notifies the UE of the information, so that when the UE performs reselection, it can refer to the access condition information to determine whether to perform reselection. select. The method realizes the load control among the systems by controlling the reselection of the UE, which can balance the loads of the systems, improve the resource utilization rate, and improve the user experience.

Description

Inter-system load control method, access equipment and user equipment

technical field

The present invention relates to the field of communication technology, in particular to an inter-system load control method, access equipment and user equipment.

Background technique

In order to meet the challenges of wireless broadband technology and maintain the leading edge of the 3GPP (The 3rd Generation Partnership Project, Third Generation Partnership Project) network, 3GPP has formulated LTE (Long Term Evolution, Long Term Evolution Plan). 3GPP and 3GPP2 also define the intercommunication standard of LTE network and eHRPD (Evolved High Rate Packet Data, evolved high rate packet data) network packet data service.

In the LTE and eHRPD systems, the system access device will notify the UE (User Equipment, user terminal) of the information of other systems nearby through a broadcast message, including the reselection priority between systems, and the UE will reconnect to the system that meets the requirements of the reselection rules according to the reselection rules. Certainly required high-priority systems. Generally, the data throughput rate of the LTE system is higher than that of the eHRPD system, and the priority of the LTE system in the public priority will be higher than that of the eHRPD system. In the prior art, in order to solve the load balancing between different frequencies or different systems, when the LTE system load is high, the network can set the dedicated priority of some UEs, so that the priority of the eHRPD system is higher than that of the LTE system, so that this part Based on the reselection rules, UEs with special priority will re-connect to the cells of the eHRPD system, so as to realize load control and achieve the purpose of load balancing between systems.

However, in the area covered by both the LTE system and the eHRPD system, if the LTE load increases, the UE will reselect or switch to the eHRPD system according to the existing method of setting dedicated priority, and after entering the idle state, due to the LTE The priority of the system is higher than that of the eHRPD system, and the UE will switch back to the LTE system again according to the reselection rules. Therefore, the existing technical methods cannot realize effective control of the load between the systems, and cannot effectively balance the loads of the two systems.

Contents of the invention

Embodiments of the present invention provide an inter-system load control method, an access device, and a user equipment, capable of controlling inter-system load by controlling UE reselection.

In order to solve the above technical problems, the embodiment of the present invention discloses the following technical solutions:

A load control method between systems, comprising:

The first access device of the first network system acquires access condition information of the second access device of the second network system;

The first access device sends the access condition information to the user equipment UE, so that the UE judges whether to select the second network system for re-access according to the access condition information, wherein the UE It is located in the area covered by the first network system and the second network system.

An inter-system load control method, in which a user equipment UE is located in an area covered by the first network system and the second network system, the method comprising:

The UE receives the access condition information of the second access device of the second network system sent by the first access device of the first network system;

The UE judges whether to select the second network system for re-access according to the access condition information.

An access device, the access device is applied to a first network system, and the access device includes:

an information acquiring unit, configured to acquire access condition information of the access device of the second network system, and transmit the access condition information to the information sending unit;

The information sending unit is configured to receive the access condition information sent by the information acquiring unit, and send the access condition information to the UE, so that the UE judges whether to select the second access condition information according to the access condition information. The two network systems perform re-access, wherein the UE is in an area covered by the first network system and the second network system.

A user equipment, where the user equipment is in an area covered by a first network system and a second network system, the user equipment includes:

An information receiving unit, configured to receive the access condition information of the second access device of the second network system sent by the first receiving device of the first network system, and send the access condition information to the reselection Judgment unit;

The reselection determining unit is configured to receive the access condition information sent by the information receiving unit, and determine whether to select the second network system for re-access according to the access condition information.

A load control system, comprising a first access device of a first network system, a second access device of a second network system, and users in an area covered by the first network system and the second network system equipment;

The first access device is configured to obtain access condition information of a second access device of the second network system; and send the access condition information to the user equipment;

The user equipment is configured to receive the access condition information sent by the first receiving device, and judge whether to select the second network system for re-access according to the access condition information.

In the embodiment of the present invention, the first access device of the first network system obtains the access condition information of the second access device of the second network system, and notifies the UE of the information, so that the UE can refer to the access condition information to determine whether to Selecting the second network system for re-access. The method realizes the load control among the systems by controlling the reselection of the UE, which can balance the loads of the systems, improve the resource utilization rate, and improve the user experience.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, In other words, other drawings can also be obtained from these drawings without paying creative labor.

Fig. 1 is a flow chart of the first embodiment of an inter-system load control method of the present invention;

Fig. 2 is a flow chart of the second embodiment of an inter-system load control method of the present invention;

3 is a flowchart of a third embodiment of an inter-system load control method of the present invention;

FIG. 4 is a flowchart of a method for UE to determine whether to reselect in the embodiment shown in FIG. 3;

5 is a flowchart of a fourth embodiment of an inter-system load control method of the present invention;

FIG. 6 is a block diagram of an embodiment of an access device according to the present invention;

FIG. 7 is a block diagram of a first embodiment of a user equipment according to the present invention;

FIG. 8 is a block diagram of a second embodiment of a user equipment according to the present invention;

Fig. 9 is a block diagram of an embodiment of a load control system of the present invention.

Detailed ways

In the prior art, in the area covered by both LTE and eHRPD systems, system access equipment, such as the access equipment eAN (evolved Access Network, evolved access network) of the eHRPD system, reselects the priority of different carrier frequencies of the LTE system The UE is notified by a broadcast message that the UE in the idle state selects a carrier frequency for re-access according to the reselection priorities of different carrier frequencies in the LTE system. For example, in the LTE system, if the reselection priority of a certain carrier frequency is high, and the signal strength or quality is greater than a threshold, the UE may select the carrier frequency for re-access. During this process, the UE cannot obtain the load situation of the LTE system, and will not consider whether the LTE system allows it to access, so this method is likely to cause a relatively high load of the LTE system.

Based on this, the embodiment of the present invention obtains the access condition information of the access device of the different system through the access device of the network system, such as load information, access restriction information, etc., and informs the UE of this information, so that the UE performs reselection , it may be determined whether to perform reselection according to the access condition information. The method realizes the load control among the systems by controlling the reselection of the UE, and achieves the purpose of balancing the load among the systems.

In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, and to make the above-mentioned purposes, features and advantages of the embodiments of the present invention more obvious and understandable, the following describes the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings For further detailed explanation.

Referring to FIG. 1 , it is a flow chart of the first embodiment of an inter-system load control method of the present invention.

The method can include:

Step 101, a first access device of a first network system acquires access condition information of a second access device of a second network system.

The first network system may be an eHRPD system, the second network system may be an LTE system, of course, the first network system may be an LTE system, the second network system may be an eHRPD system, or two other types of network systems, which will not be described in detail here. limited.

The first access device of the first network system can obtain the access conditions of the second access device of the second network system through interface messages, such as private interface messages or open interface messages between the first and second access devices Of course, other messages can also be used to carry the access condition information, or a third party forwards the access condition information to the first access device; or the platform that provides the access condition information forwards the access condition information to The access condition information is forwarded to the first access device.

The access condition information is used to characterize the condition that the second access device of the second network system allows the UE to access, for example, it may be the load information and/or access restriction information of the second access device, so that the UE can The access condition information judges whether re-access to the second network system is possible.

Wherein, the above "first" and "second" are only to distinguish two different networks or different devices with the same name, and are not specific or limited.

Step 102, the first access device sends access condition information to the UE, so that the UE can judge whether to re-connect to the second network system according to the access condition information, that is, determine whether to select the second network system for re-access .

After the first access device obtains the access condition information of the second access device, it sends the access condition information to the UE. Specifically, the first access device may directly send a message including the access condition information to It is also possible to convert the specific form representing the access condition information before sending it to the UE, such as converting the relevant parameters representing the access condition information, such as converting from capacity level to reselection factor, but the The conversion does not affect the substantive content of the access condition information, and the UE can obtain the conditions under which the second access device of the second network system allows the UE to access. The sending method can be broadcast or one-to-one sending, and the access condition information can be carried by an existing broadcast message, or can be an independent message, and its specific form is not limited, as long as the access condition information can be transmitted to UE will do. In the embodiment of the present invention, the UE is in an area covered by the first network system and the second network system, and may be a UE in an idle state.

In the embodiment of the present invention, the access device of the network system obtains the access condition information of the access device of the different system, and notifies the UE of the information, so that the UE can refer to the access condition information to determine whether to select the different system for reconnection. enter. The method realizes the load control among the systems by controlling the reselection of the UE, which can balance the loads of the systems, improve the resource utilization rate, and improve the user experience.

Referring to FIG. 2 , it is a flow chart of the second embodiment of an inter-system load control method of the present invention.

In this embodiment, the user equipment UE is in an area covered by the first network system and the second network system, and the method may include:

Step 201, the UE receives access condition information of a second access device in a second network system sent by a first access device in a first network system.

Step 202, the UE judges whether to select the second network system for re-access according to the access condition information.

Optionally, the UE judges whether to select the second network system for re-access according to the access condition information, which may include:

If the load information of the access condition information includes a capacity level, the UE generates a first random number;

When the first random number is less than or equal to the capacity level, the UE selects the second network system for re-access.

Optionally, the UE judging whether to select the second network system for re-access according to the access condition information may include:

If the access restriction information of the access condition information includes access restriction factor, access restriction time and restricted access type information, then when the UE's access type is a separately specified type and belongs to the restricted access type , the UE does not select the second network system for re-access within the limited access time; when the access type of the UE is a random judgment type, the UE generates a second random number, and when the second random number is greater than the access type When the restriction factor is entered, within the access restriction time, the UE does not select the second network system for re-access.

Referring to FIG. 3 , it is a flowchart of a third embodiment of an inter-system load control method of the present invention.

This embodiment is described by taking the first network system as an eHRPD system and the second network system as an LTE system as an example, where the UE is located in an area covered by both the eHRPD system and the LTE system. The method can include:

In step 301, the eAN of the eHRPD system obtains the load information of the eNB (evolved Node B, evolved base station) of the LTE system.

In this embodiment, the access device eAN of the eHRPD system can obtain the access condition information of the access device eNB of the LTE system through the following method:

For multi-mode base stations, the BTS (Base Transceiver Station, base transceiver station) of the eHRPD system and the eNB are the same physical device, the eHRPD system and the LTE system share the same BTS, and the eAN obtains the message through the internal private interface (such as the Abis interface) of the BTS Access condition information of the eNB of the LTE system; or,

If the BTS of eHRPD and the eNB are not the same physical device, the eAN obtains the access condition information of the eNB of the LTE system through a private interface message with the eNB; or,

Obtain the access condition information of the eNB of the LTE system by defining the open interface message of the eAN and the eNB, for example, the eNB of the LTE system sends a message carrying the access condition information of the eNB to the eAN; or,

The eNB of the LTE system sends the access condition information to the MME (Mobility Management Entity, mobility management entity) through the S1-MME interface, and the MME forwards it to the eAN through the S101 interface.

The eNB of the LTE system reports the access condition information to the operation and maintenance system, and the eAN acquires the access condition information reported by the eNB from the operation and maintenance system.

Of course, the eAN can also obtain the access condition information of the eNB of the LTE system in other ways, which will not be repeated here. In this embodiment, the access condition information may specifically be load information.

In step 302, the eAN broadcasts an enhanced otherRATNeighborlist message on the air interface, and the enhanced otherRATNeighborlist message includes load information of eNBs in the LTE system.

In the prior art, the eHRPD system has defined the otherRATNeighborlist message, which is used to transmit the information of neighboring cells of different systems, including the public priority of inter-system reselection, to the UE under the system. In this embodiment, the eAN simultaneously transmits the load information of the eNB of the LTE system to the UE through the enhanced otherRATNeighborlist message.

Specifically, the following information can be added to the reserved fields at the end of the otherRATNeighborlist message:

The LoadInfoIncluded field is used to indicate whether load information is included, and this field is 0 or 1 bit. Set to 1 if the message subsequently contains load information, otherwise set to 0.

Also, for each carrier frequency, the following fields are added:

The CapacityClass field is used to indicate the capacity class of the system, which may be the percentage of available capacity, and the value ranges from 0 to 100. This field is 0 or 7 bits. If LoadInfoIncluded=1, the CapacityClass field is included.

By adding the above LoadInfoIncluded field and CapacityClass field at the end of the original otherRATNeighborlist message, the load information of the eNB can be carried in the otherRATNeighborlist message to form an enhanced otherRATNeighborlist message. The eAN broadcasts the enhanced message on the air interface.

In another embodiment, the eAN may also convert the obtained capacity level of the LTE system into a ReselectionFactor (reselection factor), and then send the reselection factor to the UE through an enhanced otherRATNeighborlist message. The reselection factor represents the probability of being able to re-access to the LTE system, and may be represented by a percentage or an integer.

In another embodiment, if the first network system is the HRPD system, the access device of this system may also use the above enhanced otherRATNeighborlist message to send the access condition information of the access device of the second network system to the UE.

In step 303, the UE judges whether to re-connect to the LTE system according to the load information in the enhanced otherRATNeighborlist message.

If the UE obtains that the LoadInfoIncluded field is 1 in the enhanced otherRATNeighborlist message, it will further read the CapacityClass field in it to obtain the accessible capacity class or reselection factor under the LTE system.

In this embodiment, after obtaining the capacity level, as shown in Figure 4, the UE can judge whether to re-access to the LTE system by the following method:

Step 401, if the load information of the access condition information includes a capacity level, the UE generates a first random number.

The UE generates a uniformly distributed first random number of 0-1 according to the random number generation method specified in the CDMA (Code Division Multiple Access) HRPD specification. Wherein, "first" is only for distinguishing from random numbers generated subsequently, and is not a limitation.

Step 402, when the first random number is less than or equal to the capacity level, the UE selects the LTE system for re-access.

If the random number is smaller than the capacity level, it means that the LTE system has sufficient capacity, and the UE is allowed to switch in. At this time, the UE selects the LTE system for re-access. If the random number is greater than the capacity level, the UE does not select the LTE system for re-access, but remains in the eHRPD system.

In another embodiment, if the load information of the access condition information includes a reselection factor, the UE may also generate a random number, and then determine whether to select the LTE system for reselection by comparing the random number with the reselection factor. access.

In addition, the UE can directly perform the above steps 401 to 402 according to the load information in the enhanced otherRATNeighborlist message, and then perform the re-access to LTE process. Alternatively, according to the pre-fields in the enhanced otherRATNeighborlist message, such as the field indicating the priority, and the field of signal strength or quality, first determine that the UE can re-access a certain carrier frequency of the LTE system, and then perform the above steps 401~402 to judge.

In the embodiment of the present invention, the access device of the eHRPD system obtains the load information of the access device of the LTE system, and informs the UE of the load information through the enhanced otherRATNeighborlist message, so that the UE can determine whether to select the LTE system for re-access according to the load information . The method realizes the load control between the eHRPD system and the LTE system by controlling the reselection of the UE, and can balance the loads of the two systems.

Referring to FIG. 5 , it is a flowchart of a fourth embodiment of an inter-system load control method of the present invention.

In this embodiment, the first network system is still the eHRPD system, and the second network system is the LTE system as an example for illustration, wherein the UE is located in an area covered by the eHRPD system and the LTE system. The method can include:

In step 501, the eAN of the eHRPD system obtains the access restriction information of the eNB of the LTE system.

In this step, the method for the eAN to obtain the access restriction information may be the same as the method for the eAN to obtain the load information in step 301 of the foregoing embodiment, which will not be repeated here.

In step 502, the eAN broadcasts an enhanced otherRATNeighborlist message on the air interface, and the enhanced otherRATNeighborlist message includes access restriction information of the eNB.

In this embodiment, the access restriction information may also be carried by an enhanced otherRATNeighborlist message. Specifically, the following information may be added to the reserved fields at the end of the existing otherRATNeighborlist message:

The ACBIncluded field is used to indicate whether access restriction information is included, and this field is 0 or 1 bit. If the message subsequently contains access restriction information, it is set to 1, otherwise it is set to 0.

Also, for each carrier frequency, the following fields are added:

ACBFactor (ACB factor, that is, access restriction factor), this field is 0 or 4 bits. If ACBIncluded=1, the ACBFactor field is included. The value of this field from 0 to 15 represents that the ACB factor is 0, 5%, 10%, 15%, 20%, 25%, 30%, 40%, 50%, 60%, 70%, 75%, 80%, 85%, 90%, 95%.

ACBTime (ACB time, that is, access restriction time), this field is 0 or 3 bits. If ACBIncluded=1, the ACBTime field is included. Indicates that the access restriction time is 2^(ACBtime+2) seconds, that is, the value of this field from 0 to 7 indicates that the reception restriction time is 4, 8, 16, 32, 64, 128, 256, 512 seconds.

ACBForSpecialAC (restricted information of special AC, that is, restricted access type information), this field is 0 or 5 bits. This field is included if ACBIncluded=1. The left side represents AC11, and the right side represents AC12 to AC15. If a certain bit is 1, for example, the first bit on the left is 1, the user belonging to the AC11 represented by this bit is restricted and cannot re-connect to the LTE system. If a certain bit is 0, such as the second bit from the left is 0, it means that the user belonging to the AC12 represented by this bit can perform LTE reselection, that is, reselection can be performed according to the public priority and LTE signal conditions.

By adding the above fields at the end of the original otherRATNeighborlist message, the otherRATNeighborlist message can carry the access restriction information of the eNB to form an enhanced otherRATNeighborlist message. The eAN broadcasts the enhanced message on the air interface.

In step 503, the UE judges whether to re-connect to the LTE system according to the access restriction information in the enhanced otherRATNeighborlist message.

If the UE obtains that the ACBIncluded field is 1 in the enhanced otherRATNeighborlist message, it will further read the access restriction factor, access restriction time and restricted access type information fields therein.

If the access restriction information includes access restriction factor, access restriction time, and restricted access type information, when the UE's access type is a separately specified type, for example, it belongs to AC11 to AC15, and does not belong to the restricted access type. When the access type is limited, the UE can perform reselection. If it belongs to the restricted access type, the UE cannot select the LTE system for re-access within the access restricted time (ACBTime). The judgment can be made again after the access restriction time has elapsed.

When the UE's access type is a random judgment type, for example, it belongs to AC0 to AC9, if the field value of the access restriction factor is 0, the UE will not select the LTE system for re-entry within the access restriction time. Access can be judged again according to the access restriction information broadcast by eAN outside the access restriction time; if the field value of the access restriction factor is not 0, the UE will generate a random number according to the random number generation method stipulated in the CDMA HRPD specification, A uniformly distributed second random number of 0-1 is generated, and when the second random number is less than or equal to the access restriction factor, the UE may select the LTE system for re-access. If the second random number is greater than the access restriction factor, the LTE system is not selected for re-access within the access restriction time, and a random number may be generated again for judgment outside the access restriction time.

Among them, regarding the UE's AC (Access Class, access type), in the LTE system, the AC is no longer classified as 0-9 levels, and the users of these 10 levels adopt a randomized judgment method (that is, the UE type is Random judgment type), UE judges whether it can be accessed; and UMTS (Universal Mobile Telecommunication System, Global Mobile Communication System) method is used for levels 10 to 15, that is, they are separately designated (that is, the UE type is a separately designated type).

In addition, the UE may directly perform the above step 503 according to the access restriction information in the enhanced otherRATNeighborlist message, and then select the LTE system for re-access. Alternatively, according to the pre-fields in the enhanced otherRATNeighborlist message, such as the field indicating the priority, and the field of signal strength or quality, first determine that the UE can re-access a certain carrier frequency of the LTE system, and then perform the above steps 503 to judge. The above steps for the UE to determine whether to select another system for re-access can also be applied to other network systems, not limited to the eHRPD system and the LTE system.

In the embodiment of the present invention, the access device of the eHRPD system obtains the access restriction information of the access device of the LTE system, and informs the UE of the access restriction information through the enhanced otherRATNeighborlist message, so that the UE can determine whether to select The LTE system performs re-access. The method realizes the load control between the eHRPD system and the LTE system by controlling the reselection of the UE, and can balance the loads of the two systems.

In another embodiment of the present invention, the access condition information may also include load information and access restriction information at the same time. During specific implementation, the UE may choose one of the information to make a reselection judgment, or may carry the The information that the UE refers to is specified in the entry condition information message; the UE can also refer to the two information at the same time, as long as either information indicates that the UE cannot select a different system for re-access, the UE cannot access the different system.

Those skilled in the art can clearly understand that the technologies in the embodiments of the present invention can be implemented by means of software plus a necessary general-purpose hardware platform. Based on this understanding, the essence of the technical solutions in the embodiments of the present invention or the part that contributes to the prior art can be embodied in the form of software products, and the computer software products can be stored in storage media, such as ROM/RAM , magnetic disk, optical disk, etc., including several instructions to enable a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in various embodiments or some parts of the embodiments of the present invention.

The above is the description of the method embodiment of the present invention, and the device and system for realizing the above method will be introduced below.

Referring to FIG. 6 , it is a block diagram of an embodiment of an access device according to the present invention.

The access device is applied to the first network system, and the access device may include:

The information obtaining unit 601 is configured to obtain access condition information of an access device of the second network system, and transmit the access condition information to the information sending unit 602 .

The information sending unit 602 is configured to send the access condition information obtained by the information obtaining unit 601 to the UE, so that the UE judges whether to select the second network system for re-access according to the access condition information, wherein, the UE It is in the area covered by the first network system and the second network system.

The information obtaining unit 601 of the access device may obtain the access condition information of the access device of the second network system through a private interface message or an open interface message with the access device of the second network system. The access condition information is used to characterize the condition that the access device of the second network system allows the UE to access, for example, it may be load information and/or access restriction information of the access device of the second network system. The information obtaining unit 601 After obtaining the access condition information, send the access condition information to the information sending unit 602, and the information sending unit 602 sends it to the UE. The sending method can be broadcast or one-to-one sending. The access condition information can be sent through the existing It can also be an independent message, and its specific form is not limited, as long as the access condition information can be transmitted to the UE. The idle state UE in the area covered by the first network system and the second network system can judge whether to perform reselection according to the access condition information.

The access device in the embodiment of the present invention obtains the access condition information of the access device of the different system through the above-mentioned unit, and notifies the UE of the information, so that when the UE performs reselection, it can refer to the access condition information to determine whether to perform reselection. select. The access device implements load control between systems by controlling UE reselection, which can balance system loads, improve resource utilization, and improve user experience.

In another embodiment of the present invention, the first network system may be an eHRPD system, wherein the information acquisition unit of the access device may specifically be used to communicate with the access device of the second network system through a private interface message , or the open interface message to obtain the access condition information of the access device of the second network system, and transmit the access condition information to the information sending unit. Alternatively, when the first network system is the eHRPD system and the second network system is the LTE system, the information acquisition unit receives the access condition information sent by the access device of the second network system and forwarded by the MME, and sends the access condition information The information is transmitted to the information sending unit.

The information sending unit may be specifically configured to receive the access condition information sent by the information unit, and broadcast an enhanced otherRATNeighborlist message on the air interface, and the enhanced otherRATNeighborlist message includes the access condition information. The access condition information may include load information and/or access restriction information.

The access device obtains the access condition information of the access device of the different system through the above unit, and informs the UE of the information through the enhanced otherRATNeighborlist message, so that the UE can refer to the access condition information to determine whether to perform reselection when performing reselection. select. The access device implements load control between systems by controlling UE reselection, which can balance system loads, improve resource utilization, and improve user experience.

Referring to FIG. 7 , it is a block diagram of a first embodiment of a user equipment according to the present invention.

The user equipment is in an area covered by the first network system and the second network system. The user equipment may include:

An information receiving unit 701, configured to receive the access condition information of the second access device of the second network system sent by the first receiving device of the first network system;

The reselection determining unit 702 is configured to determine whether to reconnect to the second network system according to the access condition information received by the information receiving unit 701 .

The user equipment receives the access condition information of the access device of the different system sent by the access device of the network system through the above-mentioned unit, and judges whether to perform reselection according to the information, and realizes the load control between the systems, which can reduce the load of the system A balance is achieved, resource utilization is improved, and user experience is improved.

Referring to FIG. 8 , it is a block diagram of a second embodiment of a user equipment according to the present invention.

The user equipment is in an area covered by the first network system and the second network system. The user equipment may include: an information receiving unit 801 and a reselection determining unit 802 .

In this embodiment, the access condition information received by the information receiving unit 801 includes load information.

The reselection determination unit 802 may further include:

The generation subunit 8021 is configured to receive the access condition information sent by the information receiving unit 801, and generate a first random number when the load information of the access condition information includes a capacity level;

The reselection subunit 8022 is configured to select the second network system for re-access when the first random number generated by 8021 generated by the generation subunit is smaller than the equal capacity level.

In another embodiment, if the access condition information received by the information receiving unit includes access restriction information. Then the reselection determination unit can be specifically used for when the access restriction information of the access condition information includes access restriction factor, access restriction time and restriction access type information, if the access of the user equipment If the type is a separately specified type and belongs to the restricted access type, the second network system will not be selected for re-access within the restricted access time; when the access type of the user equipment is randomly judged type, generate a second random number, and when the second random number is greater than the access restriction factor, do not select the second network system for re-access within the access restriction time.

The user equipment receives the access condition information of the access device of the different system sent by the access device of the network system through the above-mentioned unit, and judges whether to perform reselection according to the information, and realizes the load control between the systems, which can reduce the load of the system A balance is achieved, resource utilization is improved, and user experience is improved.

Referring to Fig. 9, it is a block diagram of an embodiment of a load control system of the present invention.

The load control system may include a first access device 901 of the first network system, a second access device 902 of the second network system, and a user device 903 in an area covered by the first network system and the second network system.

The first access device 901 is configured to obtain the access condition information of the second access device 902 of the second network system; and send the access condition information to the UE 903.

The UE 903 is configured to receive the access condition information sent by the first receiving device 901, and judge whether to re-connect to the second network system according to the access condition information. Wherein, the first network system may be an eHRPD system, and the second network system may be an LTE system, and of course other network systems may also be used.

The load control system implements load control between systems by controlling reselection of UEs, which can balance system loads, improve resource utilization, and improve user experience.

Each embodiment in this specification is described in a progressive manner, the same and similar parts of each embodiment can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and for relevant parts, refer to part of the description of the method embodiment.

The embodiments of the present invention described above are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (14)

1. An intersystem load control method, comprising:

a first access device of a first network system acquires access condition information of a second access device of a second network system;

and the first access equipment sends the access condition information to User Equipment (UE) so that the UE judges whether to select the second network system for re-access according to the access condition information, wherein the UE is in an area jointly covered by the first network system and the second network system.

2. The method of claim 1, wherein obtaining access condition information of a second access device of a second network system by a first access device of the first network system comprises:

the first access device of the first network system obtains the access condition information of the second access device through a private interface message or an open interface message between the first access device and the second access device of the second network system.

3. The method of claim 1, wherein the first access device sends the access condition information to the UE, and wherein the sending comprises:

the first access equipment broadcasts an enhanced neighbor list otherRATNeighborlist message of other access technologies at an air interface, wherein the enhanced otherRATNeighborlist message comprises the access condition information.

4. The method according to any of claims 1 to 3, wherein the access condition information comprises load information and/or access restriction information.

5. An inter-system load control method, wherein a User Equipment (UE) is in an area commonly covered by a first network system and a second network system, comprises:

the UE receives access condition information of second access equipment of a second network system, which is sent by first access equipment of the first network system;

and the UE judges whether to select the second network system for re-access according to the access condition information.

6. The method of claim 5, wherein the UE determines whether to select the second network system for re-access according to the access condition information, comprising:

if the load information of the access condition information comprises a capacity grade, the UE generates a first random number;

and when the first random number is less than or equal to the capacity grade, the UE selects the second network system for re-access.

7. The method of claim 5, wherein the UE determines whether to select the second network system for re-access according to the access condition information, comprising:

if the access limiting information of the access condition information comprises an access limiting factor, access limiting time and limited access type information, when the access type of the UE is a single specified type and belongs to a limited access type, the UE does not execute the selection of the second network system for re-access within the access limiting time; and when the access type of the UE is a random judgment type, the UE generates a second random number, and when the second random number is larger than the access limiting factor, the UE does not select the second network system to perform re-access within the access limiting time.

8. An access device, wherein the access device is applied to a first network system, and the access device comprises:

an information obtaining unit, configured to obtain access condition information of an access device of a second network system;

the information sending unit is configured to send the access condition information acquired by the information acquiring unit to the UE, so that the UE determines whether to select the second network system for re-access according to the access condition information, where the UE is located in an area covered by both the first network system and the second network system.

9. The access device of claim 8,

the information obtaining unit is specifically configured to obtain access condition information of the access device of the second network system through a private interface message or an open interface message with the access device of the second network system, and transmit the access condition information to the information sending unit.

10. The access device of claim 8,

the information sending unit is specifically configured to receive the access condition information sent by the information obtaining unit, and broadcast an enhanced otherRATNeighborlist message at an air interface, where the enhanced otherRATNeighborlist message includes the access condition information.

11. A user equipment, wherein the user equipment is in an area commonly covered by a first network system and a second network system, the user equipment comprising:

an information receiving unit, configured to receive access condition information of a second access device of the second network system, where the access condition information is sent by a first receiving device of the first network system;

and the reselection judging unit is used for judging whether to select the second network system for re-access according to the access condition information received by the information receiving unit.

12. The UE of claim 11, wherein the access condition information comprises load information and/or access restriction information.

13. The ue of claim 12, wherein the reselection determination unit comprises:

a generating subunit, configured to receive the access condition information sent by the information receiving unit, and generate a first random number when the load information of the access condition information includes a capacity class;

the reselection subunit is configured to select the second network system for re-access when the first random number generated by the generation subunit is smaller than or equal to the capacity class.

14. The user equipment of claim 13,

the reselection determination unit is specifically configured to, when the access restriction information of the access condition information includes an access restriction factor, access restriction time, and restricted access type information, if the access type of the user equipment is an individually specified type and belongs to a restricted access type, not select the second network system for re-access within the access restriction time; and when the access type of the user equipment is a random judgment type, generating a second random number, and when the second random number is larger than the access limiting factor, not executing the selection of the second network system for re-access within the access limiting time.

Images