CN103582018A - Intersystem load control method, access equipment and user equipment - Google Patents
Intersystem load control method, access equipment and user equipment Download PDFInfo
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Abstract
The embodiment of the invention discloses an intersystem load control method, access equipment and user equipment. The method includes the steps that first access equipment of a first network system obtains access condition information of second access equipment of a second network system; the first access equipment sends the access condition information to the user equipment, so that the user equipment judges whether the second network system is selected to have access again or not according to the access condition information, wherein the user equipment is located in an area where the first network system and the second network system cover jointly. According to the method, access condition information of access equipment of an inter-system is obtained through the access equipment of the network systems and is informed to the user equipment, so the user equipment can determine whether to execute reselection or not by referring to the access condition information when the user equipment executes reselection. Intersystem load control is achieved by controlling reselection of the user equipment, loads of the systems can reach balance, and the utilization rate of resources and user experience are improved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to an inter-system load control method, an access device, and a user equipment.
Background
To address The challenges of wireless broadband technology, and to maintain The leading advantages of 3GPP (The 3rd Generation partnership project) networks, The 3GPP has established LTE (Long Term Evolution). 3GPP and 3GPP2 also define interworking standards for LTE networks and eHRPD (Evolved High Rate packet data) network packet data services.
In LTE and eHRPD systems, system access Equipment informs a UE (User Equipment) of information of other systems nearby through a broadcast message, where the information includes an intersystem reselection priority, and the UE re-accesses to a high-priority system that meets a certain requirement according to a reselection rule. Generally, the data throughput rate of the LTE system is higher than that of the eHRPD system, and the LTE system has a higher priority than the eHRPD system in the common priority. In the prior art, in order to solve load balancing between different frequencies or different systems, when the load of the LTE system is high, the network may set a dedicated priority of a part of UEs, so that the priority of the eHRPD system is higher than that of the LTE system, and thus the part of UEs with dedicated priorities may be re-accessed to a cell of the eHRPD system based on a reselection rule, thereby implementing load control and achieving 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 reselects or switches to the eHRPD system according to the existing method for setting the dedicated priority, and enters an idle state, because the priority of the LTE system is higher than that of the eHRPD system in the common priority, the UE switches back to the LTE system again according to the reselection rule, so the prior art method cannot realize effective control of the load between the systems, and cannot effectively balance the loads of the two systems.
Disclosure of Invention
The embodiment of the invention provides an intersystem load control method, access equipment and user equipment, which can control the intersystem load by controlling the reselection of UE.
In order to solve the technical problem, the embodiment of the invention discloses the following technical scheme:
an inter-system 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.
An inter-system load control method, in which a User Equipment (UE) is in a common coverage area of 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.
An access device, the access device being applied to a first network system, the access device comprising:
the information acquisition unit is used for acquiring access condition information of the access equipment of the second network system and transmitting 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 obtaining unit, and send the access condition information 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.
A user equipment, the user equipment being 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, which is sent by a first receiving device of the first network system, and send the access condition information to a reselection determining unit;
and the reselection judging unit is configured to receive the access condition information sent by the information receiving unit, and judge whether to select the second network system for re-access according to the access condition information.
A load control system comprises a first access device of a first network system, a second access device of a second network system, and a user device in an area jointly covered by the first network system and the second network system;
the first access device is configured to obtain access condition information of a second access device of the second network system; and sending the access condition information to the user equipment;
and the user equipment is used for receiving the access condition information sent by the first receiving equipment and judging whether to select the second network system for re-access according to the access condition information.
The embodiment of the invention obtains the access condition information of the second access equipment of the second network system through the first access equipment of the first network system and informs the information to the UE, so that the UE can determine whether to select the second network system for re-access or not by referring to the access condition information. The method realizes the load control among the systems by controlling the reselection of the UE, can balance the load of the systems, improves the utilization rate of resources and improves the user experience.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a flowchart illustrating a method for controlling inter-system load according to a first embodiment of the present invention;
FIG. 2 is a flowchart illustrating a method for controlling inter-system load according to a second embodiment of the present invention;
FIG. 3 is a flowchart illustrating a method for controlling inter-system load according to a third embodiment of the present invention;
FIG. 4 is a flowchart illustrating a method for determining whether to reselect the UE according to the embodiment shown in FIG. 3;
FIG. 5 is a flowchart illustrating a method for controlling inter-system load according to a fourth embodiment of the present invention;
fig. 6 is a block diagram of an access device according to an embodiment of the present invention;
FIG. 7 is a block diagram of a UE according to a first embodiment of the present invention;
FIG. 8 is a block diagram of a UE according to a second embodiment of the present invention;
FIG. 9 is a block diagram of an embodiment of a load control system of the present invention.
Detailed Description
In the prior art, in an area covered by both LTE and eHRPD systems, a system Access device, such as an evolved Access Network (eAN) of the eHRPD system, notifies UE of reselection priorities of different carrier frequencies of the LTE system through a broadcast message, and the UE in an idle state selects a carrier frequency for re-Access according to the reselection priorities of the different carrier frequencies of the LTE system. For example, in the LTE system, 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. In the process, the UE cannot obtain the load condition of the LTE system, and whether the LTE system allows the access of the LTE system is not considered, so that the method is likely to cause higher load of the LTE system.
Based on this, the embodiment of the present invention obtains the access condition information, such as load information and access restriction information, of the access device of the different system through the access device of the network system, and informs the information to the UE, so that when the UE performs reselection, it can determine whether to perform reselection according to the access condition information. The method realizes the load control among systems by controlling the reselection of the UE, and achieves the aim of balancing the load among the systems.
In order to make the technical solutions in the embodiments of the present invention better understood and make the above objects, features and advantages of the embodiments of the present invention more comprehensible, the technical solutions in the embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
Referring to fig. 1, a flowchart of a method for controlling inter-system load according to a first embodiment of the present invention is shown.
The method can comprise the following steps:
step 101, a first access device of a first network system obtains 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, or certainly, the first network system may be an LTE system, the second network system is an eHRPD system, or other two types of network systems, which is not limited specifically herein.
The first access device of the first network system may obtain the access condition information of the second access device of the second network system through an interface message, such as a private interface message or an open interface message between the first and second access devices, and may of course also carry the access condition information through other messages, or forward the access condition information to the first access device through a third party; or the platform providing the access condition information forwards the access condition information to the first access device.
The access condition information is used to characterize a condition that the second access device of the second network system allows the UE to access, and may be, for example, load information and/or access restriction information of the second access device, so that the UE determines whether to re-access the second network system according to the access condition information.
The first and second names are only used to distinguish two different networks or different devices with the same name, and are not specific or limited.
The first access device obtains the access condition information of the second access device, and then sends the access condition information to the UE, specifically, the first access device may directly send a message including the access condition information to the UE, or may convert a specific form representing the access condition information and then send the converted message to the UE, for example, convert a relevant parameter representing the access condition information, such as converting capacity level into reselection factor, but the conversion does not affect the essential content of the access condition information, and the UE may obtain the condition that the second access device of the second network system allows the UE to access. The sending method may be broadcast or one-to-one sending, the access condition information may be carried by an existing broadcast message, or may be an independent message, and a specific form thereof is not limited as long as the access condition information can be transmitted to the UE. In the embodiment of the present invention, the UE is located in an area covered by both the first network system and the second network system, and may be an idle UE.
The embodiment of the invention obtains the access condition information of the access equipment of the different system through the access equipment of the network system and informs the information to the UE, so that the UE can determine whether to select the different system for re-access or not by referring to the access condition information. The method realizes the load control among the systems by controlling the reselection of the UE, can balance the load of the systems, improves the utilization rate of resources and improves the user experience.
Referring to fig. 2, a flowchart of a method for controlling inter-system load according to a second embodiment of the present invention is shown.
In this embodiment, the UE is located in an area commonly covered by the first network system and the second network system, and the method may include:
Optionally, the determining, by the UE, whether to select the second network system for re-access according to the access condition information may include:
if the load information of the access condition information comprises the 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.
Optionally, the determining, by the UE, whether to select the second network system for re-access according to the access condition information may include:
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 an individual specified type and belongs to the limited access type, the UE does not select a 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 a second network system for re-access within the access limiting time.
Referring to fig. 3, a flowchart of a method for controlling inter-system load according to a third embodiment of the present invention is shown.
In this embodiment, a first network system is an eHRPD system, and a second network system is an LTE system, for example, where a UE is located in an area covered by both the eHRPD system and the LTE system. The method can comprise the following steps:
In this embodiment, the access device eAN of the eHRPD system may acquire the access condition information of the access device eNB of the LTE system by the following method:
for a multimode Base Station, a Base Transceiver Station (BTS) and an eNB of an eHRPD system are the same physical device, the eHRPD system and the LTE system share the same BTS, and an acquires access condition information of the eNB of the LTE system through an internal private interface (such as an Abis interface) message with the BTS; or,
if the BTS of the eHRPD and the eNB are not the same physical equipment, the eAN acquires the access condition information of the eNB of the LTE system through a private interface message of the eNB; or,
obtaining access condition information of an eNB of an LTE system by defining open interface messages of the eAN and the eNB, for example, the eNB of the LTE system sends an access condition information message carrying the eNB to the eAN; or,
the eNB of the LTE system transmits access condition information to an MME (Mobility management entity) through an S1-MME interface, and the MME forwards the access condition information to the eAN through an S101 interface.
And the eNB of the LTE system reports the access condition information to the operation maintenance system, and the eAN acquires the access condition information reported by the eNB from the operation maintenance system.
Of course, the eAN may also obtain the access condition information of the eNB of the LTE system through other manners, which is not described herein again. In this embodiment, the access condition information may specifically be load information.
In the prior art, the eHRPD system has defined a otherRATNeighborlist message for delivering information of neighboring inter-system cells to UEs under the system, including a common priority for intersystem reselection. In this embodiment, the eAN simultaneously delivers the load information of the eNB of the LTE system to the UE through an enhanced otherRATNeighborlist message.
Specifically, the following information may be added to the end reserved field of the otherRATNeighborlist message:
a loadlnfoadded field for indicating whether load information is contained, the field being 0 or 1 bit. If the message subsequently contains load information, 1 is set, otherwise 0 is set.
Meanwhile, for each carrier frequency, the following fields are added:
and a capacitycoss field for indicating the capacity class of the system, specifically, the capacity class may be an available capacity percentage, and the value is 0 to 100. This field is 0 or 7 bits. If LoadInfoIncluded =1, the CapacityClass field is included.
By adding the loadinfolncluded field and the capacitycolass field to the end of the original otherRATNeighborlist message, the load information of the eNB can be carried in the otherRATNeighborlist message, and an enhanced otherRATNeighborlist message is formed. The eAN broadcasts the enhanced message over the air interface.
In another embodiment, the eAN may also convert the obtained capacity level of the LTE system into a reselection factor, and then send the reselection factor to the UE through an enhanced othernatneighborlist message. The reselection factor represents the probability that the LTE system can be re-accessed, and may be expressed as a percentage or an integer.
In another embodiment, if the first network system is an HRPD system, the access device of the system may also send the access condition information of the access device of the second network system to the UE by using the enhanced otherRATNeighborlist message.
If the LoadInfoIncluded field obtained in the enhanced otherRATNeighborst message is 1, the CapacityClass field is further read by the UE, and the accessible capacity level or reselection factor in the LTE system is obtained.
In this embodiment, after obtaining the capacity class, as shown in fig. 4, the UE may determine whether to re-access to the LTE system by the following method:
in step 401, if the load information of the access condition information includes a capacity class, the UE generates a first random number.
The UE generates a first random number of 0-1 uniformly distributed according to a random number generation method specified by a Code Division Multiple Access (CDMA) HRPD specification. The "first" is only to distinguish from the random number generated subsequently, and is not limited.
Step 402, when the first random number is less than or equal to the capacity grade, the UE selects the LTE system to perform re-access.
If the random number is smaller than the capacity grade, the LTE system has enough capacity, the UE is allowed to switch in, and the UE selects the LTE system to perform re-access at the moment. If the random number is larger than the capacity level, the UE does not select the LTE system to perform re-access, but is still 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 re-access by comparing the random number with the size of the reselection factor.
In addition, the UE may directly perform the above steps 401 to 402 according to the load information in the enhanced otherRATNeighborlist message, and then perform a procedure of re-accessing to LTE. Or according to the fields, such as the field indicating the priority and the field indicating the signal strength or quality, that are preposed in the enhanced otherRATNeighborlist message, first determining that the UE can re-access to a certain carrier frequency of the LTE system, and then performing the above steps 401 to 402 for determination.
The access equipment of the eHRPD system acquires the load information of the access equipment of the LTE system, and informs the load information to the UE through the enhanced otherRATNeighborst 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, a flowchart of a fourth embodiment of the method for controlling inter-system load according to the present invention is shown.
In this embodiment, the first network system is still an eHRPD system, and the second network system is an LTE system, for example, where the UE is located in an area covered by both the eHRPD system and the LTE system. The method can comprise the following steps:
In this step, the method for the eAN to acquire the access restriction information may be the same as the method for the eAN to acquire the load information in step 301 of the foregoing embodiment, and is not described herein again.
In this embodiment, the access restriction information may also be carried by an enhanced otherRATNeighborlist message, and specifically, the following information may be added to an end reserved field of the existing otherRATNeighborlist message:
an acbinreserved field for indicating whether access restriction information is included, the field being 0 or 1 bit. If the message subsequently contains access restriction information, 1 is set, otherwise 0 is set.
Meanwhile, for each carrier frequency, the following fields are added:
ACBFactor (ACB factor, i.e. access restricted factor), this field is 0 or 4 bits. If ACBIncluded =1, the ACBFactor field is included. The field value represents, in order from 0 to 15, ACB factors of 0,5%,10%,15%,20%,25%,30%,40%,50%,60%,70%,75%,80%,85%,90%, 95%.
ACBTime (ACB time, i.e. access restricted time), this field is 0 or 3 bits. If ACBIncluded =1, the ACBTime field is included. Indicating that the access restricted time is 2^ (ACBtime +2) seconds, i.e. the field value represents the reception restricted time from 0 to 7 in turn to be 4,8,16,32,64,128,256,512 seconds.
Acbfor special AC (restricted information of a special AC, i.e., restricted access type information), which is 0 or 5 bits. This field is included if ACBIncluded = 1. The left side represents AC11, and the right side represents AC12 to AC 15. If a position 1, for example, the first bit on the left is 1, the users belonging to the AC11 represented by the bit are limited and cannot re-access the LTE system. If a bit is 0, e.g. the second left bit is 0, this indicates that the user belonging to AC12 represented by the bit can perform reselection to LTE, i.e. reselection can be performed according to the common priority and the signal conditions of LTE.
By adding the above field at the end of the original otherRATNeighborlist message, the access restriction information of the eNB can be carried in the otherRATNeighborlist message, and an enhanced otherRATNeighborlist message is formed. The eAN broadcasts the enhanced message over the air interface.
Step 503, the UE determines whether to re-access to the LTE system according to the access restriction information in the enhanced otherRATNeighborlist message.
If the UE obtains the ACBIncluded field as 1 in the enhanced otherRATNeighborst message, the UE further reads the access restricted factor, the access restricted time and the restricted access type information field.
If the access restriction information includes an access restriction factor, an access restriction time, and restricted access type information, the UE may perform reselection when the access type of the UE is a separately specified type, for example, belongs to between AC11 and AC15, and does not belong to a restricted access type. If the LTE system belongs to the restricted access type, the UE cannot select the LTE system for re-access within the access restricted time (ACBTime). The determination may be made again after the access-limited time has elapsed.
When the access type of the UE is a random judgment type, for example, the UE belongs to a range from AC0 to AC9, if the field value of the access restricted factor is 0, the UE does not select the LTE system for re-access within the access restricted time, and can judge again according to the access restricted information broadcast by the eAN outside the access restricted time; if the field value of the access restricted factor is not 0, the UE generates a uniformly distributed second random number of 0-1 according to a random number generation method specified by a CDMA HRPD specification, and when the second random number is less than or equal to the access restricted factor, the UE can select the LTE system to perform re-access. And if the second random number is larger than the access limited factor, the LTE system is not selected to be accessed again within the access limited time, and the random number can be generated again outside the access limited time for judgment.
Regarding the AC (Access Class, Access type) of the UE, in the LTE system, the AC is no longer distinguished to be in a Class of 0 to 9, users in the 10 classes uniformly adopt a randomized determination mode (that is, the UE type is a random determination type), and the UE determines whether the UE can Access the UE; the 10-15 levels are respectively and individually assigned (i.e. the UE type is an individually assigned type) in a UMTS (Universal Mobile telecommunications system) manner.
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. Or, according to the fields, such as the field indicating the priority and the field indicating the signal strength or quality, that are pre-positioned in the enhanced otherRATNeighborlist message, first, it is determined that the UE can re-access to a certain carrier frequency of the LTE system, and then the above step 503 is performed to determine. The step of judging whether to select another system for re-access by the UE can also be applied to other network systems, which are not limited to the eHRPD system and the LTE system.
The access equipment of the eHRPD system acquires the access restriction information of the access equipment of the LTE system, and informs the access restriction information to the UE through the enhanced otherRATNeighborst message, so that the UE can determine whether to select the LTE system for re-access according to the access restriction 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.
In another embodiment of the present invention, the access condition information may also include load information and access restriction information, and in a specific implementation, the UE may optionally select one of the information for reselection determination, or may specify information referred to by the UE in a message carrying the access condition information; the UE may also refer to the two pieces of information at the same time, and as long as any one piece of information indicates that the UE cannot select the different system for re-access, the UE cannot access the different system.
Those skilled in the art will readily appreciate that the techniques of the embodiments of the present invention may be implemented as software plus a required general purpose hardware platform. Based on such understanding, the technical solutions in the embodiments of the present invention may be essentially or partially implemented in the form of a software product, which may be stored in a storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the embodiments or some parts of the embodiments.
The above is a description of the embodiments of the method of the present invention, and the following is a description of the apparatus and system for implementing the method.
Referring to fig. 6, a block diagram of an embodiment of an access device according to the present invention is shown.
The access device is applied to a first network system, and the access device may include:
an information obtaining unit 601, 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.
An information sending unit 602, configured to send the access condition information obtained by the information obtaining unit 601 to a UE, so that the UE determines, according to the access condition information, whether to select the second network system for re-access, where the UE is located in an area covered by both 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 represent a condition that the access device of the second network system allows the UE to access, and may be, for example, load information and/or access restriction information of the access device of the second network system, and the information obtaining unit 601 obtains the access condition information, then sends the access condition information to the information sending unit 602, and sends the access condition information to the UE by the information sending unit 602, where the sending method may be broadcast or one-to-one sending, and the access condition information may be carried by an existing broadcast message, or may be an independent message, and a specific form of the access condition information is not limited as long as the access condition information may 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 execute reselection according to the access condition information.
The access equipment of the embodiment of the invention acquires the access condition information of the access equipment of the different system through the unit and informs the information to the UE, so that the UE can determine whether to execute reselection by referring to the access condition information when executing reselection. The access equipment realizes the load control among systems by controlling the reselection of the UE, can balance the load of the systems, improves the utilization rate of resources and improves the user experience.
In another embodiment of the present invention, the first network system may be an eHRPD system, where the information obtaining unit of the access device may be specifically configured to 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, and transmit the access condition information to the information sending unit. Or when the first network system is an eHRPD system and the second network system is an LTE system, the information obtaining unit receives the access condition information sent by the access device of the second network system and forwarded by the MME, and transmits the access condition information 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 over an air interface, where the enhanced otherRATNeighborlist message includes the access condition information. The access condition information may include load information and/or access restriction information.
The access equipment acquires the access condition information of the access equipment of the heterogeneous system through the units, and informs the information to the UE through the enhanced otherRATNeighborlist message, so that the UE can determine whether to execute reselection by referring to the access condition information when executing reselection. The access equipment realizes the load control among systems by controlling the reselection of the UE, can balance the load of the systems, improves the utilization rate of resources and improves the user experience.
Referring to fig. 7, a block diagram of a user equipment according to a first embodiment of the present invention is shown.
The user equipment is in an area commonly covered by the first network system and the second network system. The user equipment may include:
an information receiving unit 701, configured to receive access condition information of a second access device of a second network system, where the access condition information is sent by a first receiving device of the first network system;
a reselection determining unit 702, configured to determine whether to re-access to a 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 different system access equipment sent by the access equipment of the network system through the unit, and judges whether to execute reselection according to the information, so that the load control among systems is realized, the load of the systems can be balanced, the utilization rate of resources is improved, and the user experience is improved.
Referring to fig. 8, a block diagram of a user equipment according to a second embodiment of the present invention is shown.
The user equipment is in an area commonly 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:
a generating sub-unit 8021, 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 class;
a reselection subunit 8022, configured to select the second network system for re-access when the first random number generated by the 8021 generated by the generation subunit is smaller than the equal capacity class.
In another embodiment, if the access condition information received by the information receiving unit includes access restriction information. The reselection determination unit may be 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 selecting the second network system for re-access within the access limiting time.
The user equipment receives the access condition information of the different system access equipment sent by the access equipment of the network system through the unit, and judges whether to execute reselection according to the information, so that the load control among systems is realized, the load of the systems can be balanced, the utilization rate of resources is improved, and the user experience is improved.
Referring to fig. 9, a block diagram of an embodiment of a load control system according to the present invention is shown.
The load control system may comprise a first access device 901 of a first network system, a second access device 902 of a second network system, and a user equipment 903 in an area jointly covered by the first network system and the second network system.
A first access device 901, configured to obtain access condition information of a second access device 902 of a second network system; and transmits 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 determine whether to re-access to the second network system according to the access condition information. The first network system may be an eHRPD system, the second network system may be an LTE system, or other network systems.
The load control system realizes the load control among the systems by controlling the reselection of the UE, can balance the load of the systems, improves the utilization rate of resources and improves the user experience.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above-described embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in 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.
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