US20160302192A9 - Method and Apparatus for Determining Information about Access Barring - Google Patents
Method and Apparatus for Determining Information about Access Barring Download PDFInfo
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- US20160302192A9 US20160302192A9 US13/875,633 US201313875633A US2016302192A9 US 20160302192 A9 US20160302192 A9 US 20160302192A9 US 201313875633 A US201313875633 A US 201313875633A US 2016302192 A9 US2016302192 A9 US 2016302192A9
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/02—Access restriction performed under specific conditions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
- H04W68/12—Inter-network notification
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/002—Transmission of channel access control information
- H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
- H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
Definitions
- the present invention relates to a method and apparatus for determining information about access barring.
- Some embodiments of the present invention relate generally to Radio Resource Control (RRC) in a radio access network (RAN).
- RRC Radio Resource Control
- RAN radio access network
- UMTS Universal Mobile Telecommunication System
- LTE long term evolution
- the present application relates to RAN overload control.
- Important background information to the invention may be found in the 3 rd Generation Partnership Project (3GPP) specification TS 22.011, section 4.3.4.
- the RRC protocol layer provides functions such as broadcasting system information in a RAN. Based on the characteristics and uses of this information, the information elements are grouped together into a master information block (MB) and different system information blocks (SIBs).
- the MIB is transferred on a broadcast channel every 40 ms and is repeated within 40 ms.
- a user equipment WE acquires the MIB to decode a shared channel.
- the MIB contains a downlink system bandwidth, a physical HARQ indicator channel, and a system frame number, wherein HARQ is an acronym for hybrid adaptive repeat and request.
- SIB 1 is the first system information block to be transferred after transferring MIB. It is scheduled in a fixed manner with a periodicity of 80 ms and is repeated within 80 ms. SIB 1 contains cell-access-related information, information for cell selection, a frequency band indicator, etc. In addition, SIB 1 contains SI-window length and a system information value tag. SIB 1 is transmitted in a system information block message and the other SIBs are transmitted in system information (SI) messages. Each SI message is transmitted periodically in time domain windows, i.e. in SI-windows, and SI windows for different SI messages do not overlap. The length of SI-window defined in SIB 1 is the same for all SI messages.
- SI system information
- SIB 2 contains radio resource configuration information common to all UEs.
- SIB 2 includes access barring information, radio resource configuration of common channels, and a lot of other information.
- SIB 10 contains earthquake and tsunami warning system (ETWS) primary notification and SIB 11 contains ETWS secondary notification by which users of UEs can be warned in case of an earthquake or a tsunami.
- ETWS earthquake and tsunami warning system
- SI messages are repeated during modification periods.
- the system information modification indicator is sent in a paging message to an UE, and during the next modification period, the RAN transmits the updated system information to the UE.
- the UE verifies that its system information remains valid by either checking systemInfoValueTag in SystemInformationBlockType 1 after the modification period boundary.
- the LIE attempts to find systemInfoModification indication during a modification period. If no paging message is received by the UE during the modification period, the UE assumes that no change of system information will occur during the next modification period. If the UE is in RRC_CONNECTED mode and it receives the paging message, it deduces from the presence or absence of systemInfoModification whether a change of system information will occur in the next modification period or not.
- the SIB 2 includes the access barring information.
- the SIB 2 is used in access class barring (ACB) which is today's method to implement access barring in LTE networks.
- ACB comprises a number of parameters to indicate which of the access classes are currently barred and each UE should compare its access class to the barred access classes.
- the maximum modification period during which the access barring information reaches UEs is calculated as: modificationPeriodCoeff ⁇ defaultPagingCycle.
- the access barring information reaches the UEs quite slowly.
- the delay associated with reading the updated system information (the access barring information) is not acceptable in some overload scenarios, in terms of being able to protect the RAN from excessive access attempts.
- the sudden surge in access attempts may happen because of an earthquake or a tsunami, but more probably because of smart metering, fleet management, civilian surveillance, etc. applications.
- bit set for the access barring, wherein the bit set includes at least two bits and discloses at least whether the access barring is on or oft
- the starting message being one of the following messages: a master information block message or a paging message;
- an apparatus comprising:
- At least one memory including computer program code
- the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to perform at least the above-mentioned steps of the method of informing the user equipment about the access barring.
- the access barring is flexible or the access barring operates fast.
- the access barring is flexible because it can be adjusted in many ways.
- the access barring operates very fast when it uses only the starting message, i.e. the master information block message or the paging message.
- an apparatus comprising:
- At least one memory including computer program code
- the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to perform at least the following:
- This embodiment of the present invention intended for receiving the message set transmitted via the radio interface have at least one of following advantages: the access barring is flexible in the user equipment or the access barring can be quickly set on in the user equipment.
- the access barring is flexible because it can be adjusted in many ways.
- the access barring operates very fast when it is set on by the starting message.
- the method of claim 1 further comprises at least one of the following sub-substeps.
- the step of determining the bit set comprises the sub-step of:
- the step of determining the bit set comprises the sub-step of:
- the step of determining the bit set comprises the sub-step of:
- the step of determining the bit set comprises the sub-step of
- the step of determining the hit set comprises the sub-step of:
- the step of determining the bit set comprises the sub-step of
- the step of transmitting the bit set comprises the sub-steps of:
- the apparatus operating in the RAN is caused to perform at least one of the following operations.
- the apparatus is caused to perform: setting values into the bit set so that that bit set includes a category parameter, the category parameter disclosing at least one category of categories A, B, and C to which the access barring is applied.
- the apparatus is caused to perform: setting values into the bit set so that the bit set discloses information of the access barring to be updated.
- the apparatus is caused to perform: transmitting a system information block message to the user equipment; and transmitting at least a part of the bit set to the user equipment by using a system information message specified in the system information block message.
- the apparatus is caused to perform: determining on the basis of values of the bit set that at least one of access classes 0-9 is barred.
- the apparatus is caused to perform: determining on e basis of values of the bit set that at least one of access classes 0-9 is released.
- the apparatus is caused to perform: detecting in the bit set a category parameter, the category parameter disclosing at least one category of categories A, B, and C to which the access barring is applied.
- the apparatus operating in the RAN is caused to perform at least one of the following operations.
- the apparatus is caused to perform: detecting in the bit set a network parameter, the network parameter disclosing at least one public land mobile network to which the access barring is applied.
- the apparatus is caused to perform: detecting in the bit set a domain parameter, the domain parameter disclosing a domain set to which the access barring is applied; the domain set including at least one of the following domains: a circuit switched domain, a packet switched domain.
- the apparatus is caused to perform: determining on the basis of the bit set that the access barring is updated.
- the apparatus is caused to perform: receiving a system information block message; receiving a system information message defined in the system information block message; and obtaining at least a part of the bit set from the system information message.
- FIG. 1 illustrates a method in one embodiment of the present invention, the method performing access barring by transmitting a bit set via a radio interface to a user equipment;
- FIG. 2 illustrates an apparatus in one embodiment of the present invention, the apparatus performing access barring by transmitting a bit set via a radio interface to a user equipment;
- FIG. 3 illustrates an apparatus in one embodiment of the present invention, the apparatus performing access barring by receiving a bit set from a radio interface.
- bit set used in the embodiments of the present invention refers to a set of bits which are transmitted via a radio interface to UEs in order to bar access attempts from the UEs.
- the access barring concerns 0-N UEs.
- all the bits are transmitted in one message and in some other embodiments the bits are transmitted in different messages.
- the number of bits is unlimited, but 18 bits or less is enough in most embodiments.
- the invention can be implemented in a network side and in a user equipment side.
- the network side it can be implemented in a base station, or in more specific, in eNodeB, but there are other possibilities, too.
- FIGS. 1 to 3 of the drawings An example embodiment of the present invention and its potential advantages is understood by referring to FIGS. 1 to 3 of the drawings.
- FIG. 1 illustrates a method of informing a user equipment about access barring, the method comprising the steps of:
- an apparatus performing the method sets values into the bit set so that the bit set discloses at least one of access classes 0-9 to be barred.
- the apparatus sets values into the bit set so that the bit set discloses at least one of access classes 0-9 to be released.
- the bit set discloses which access classes are barred.
- the values of the bit set disclose, for example, the following information:
- the values 01 and 10 indicate, for example, the following information:
- the values 01 and 10 may indicate the following:
- an UE needs to count how many times it has received the bit set with values 01. The first time, it determines that access class 0 is released, i.e. UEs having access class 0 are able to access the RAN. The second time, the UE determines that access class 1 is released. Finally, the tenth time, the last access class, i.e. access class 9, is released at the UE.
- the bit set may include one bit for each access class 0-9, but then ten bits are needed to disclose which access classes are barred.
- MIB included the spare bits. Those spare bits are useful in various purposes in future, thus they should not be wasted. As shown in the above examples, it is possible to implement a new kind of access barring by using only two bits.
- EAB extended access barring
- EAB refers to access barring that can be adjusted in various ways. EAB can also be understood as flexible access barring. When using EAB access classes to be barred are indicated in one way or other.
- EAB may include a category parameter, a network parameter, and/or a domain parameter.
- the apparatus sets values into the bit set so that that bit set includes a category parameter, the category parameter disclosing at least one category of categories A, B, and C to which the access barring is applied.
- the categories are specified as follows:
- the category parameter can be coded with two bits.
- the apparatus sets values into the bit set so that the bit set includes a network parameter, the network parameter disclosing at least one public land mobile network (PLMN) to which the access barring is applied.
- PLMN public land mobile network
- the HE may have access to a number of PLMNs and by the network parameter some of them (or all of them) can be barred from the HE.
- the network parameter can be coded with three bits.
- the apparatus sets values into the bit set so that the bit set includes a domain parameter disclosing a domain set to which the access barring is applied; the domain set including at least one of the following domains: a circuit switched domain, a packet switched domain.
- the parameter can be coded with two bits.
- the access barring is implemented with eight bits so that the bit set includes two bits for the on/off information and for the access classes (as illustrated in the above examples), two bit for the category parameter, three bits for the network parameter, and two bits for the domain information.
- the apparatus sets a value into the first bit, the value informing that the access barring is on.
- the apparatus uses one on/off bit and one updating bit to inform HE that there is updated access barring information to be read. This can be done in idle mode and connected mode.
- a MIB includes most of the frequently transmitted parameters. For example, if the on/off bit and the updating bit are on, the UE reads the updated access barring information that is placed in a new EAB SIB.
- the new EAB SIB is, for example, SIB 14 . Otherwise, if the on/off bit is on and updating bit is off, the UE does not read SIB 14 but uses the previous SIB 14 information. Otherwise, if the on/off bit is off, the UE discards the stored SIB 14 and does not read a new SIB 14 .
- the apparatus sets a value into the first bit, the value informing that the access barring is on.
- the apparatus uses one on/off bit in MIB or paging and one updating bit to inform UE that there is updated access barring information to be read. This can be done in idle mode and connected mode.
- a MIB includes most of the frequently transmitted parameters. For example, if the on/off bit and the updating bit are on, the UE reads the updated access barring information that is placed in a new EAB SIB.
- the new EAB SIB is, for example, SIB 14 . Otherwise, if the on/off bit is on and updating bit is off, the UE does not read SIB 14 but uses the previous SIB 14 information. Otherwise, if the on/off bit is off, the UE discards the stored SIB 14 and does not read a new SIB 14 .
- This kind of access barring is termed “EAB barring” and it is implemented, for example, in the following way:
- the overload problem is alleviated by the EAB barring.
- evolved NodeB eNB
- MTC UEs machine-type-communication user equipments
- the eNB set value 1 into an updating bit.
- the access barring on/off bit may be the first bit and the updating bit may be the second bit, but they can be coded in some other way, too.
- the updating bit keeps its value (value 1) for a fixed period that is, for example, 3 hours. When the fixed period ends, the updating bit is set value 0.
- value 0 is the default value at the MTC UEs, but the eNB can change the value 0 to 1 for the fixed period.
- This arrangement is one example of the flexibility of the access barring related to the invention.
- it cuts power consumption at the MTC UEs. If an MTC UE tries to access the network in a period of 24 hours before it accesses the network, it would check MIB for EAR on/off and updating bit, the MTC UEs would always react to the instant of the network situation whenever before its access.
- the apparatus sets values into the bit set, the values informing that the access barring is updated.
- the fast EAB schema is based on use of a starting message and EAR SIB (the terms “starting message” and “EAB SIB” are specified in the above).
- the apparatus sets a value into the first bit of the bit set to inform that the fast EAR schema is enabled, and it places a part of the bit set in binary variables of SIB 1 .
- the apparatus uses the first bit to enable an UE to obey the fast EAB schema, and it uses the binary variables schedulinglofoList and ValueTag in SIB 1 to inform about changes in the access barring.
- This embodiment can be utilized in the idle mode and in the connected mode.
- the EAB SIB is included in schedulingInfoList in MI, and ValueTag in SIB 1 is updated, the UE will immediately read the LAB SIB.
- the number of bits for ValueTag is defined by the number of possible combinations of access barring parameter values within period T.
- EAR SIB must disclose at most 16 different parameter values. Then four bits are enough to disclose the 16 values and thus ValueTag is composed of 4 bits.
- a default period is set in Tinier. The default period is, for example 3 hours during which an updating bit has value 1. This bit has the following effect. When the updating bit carries value l the UE cheeks schedulingInfoList and ValueTag to determine whether the UL should read EAB SIB. When Timer expires, the updating bit is turned to 0 and the UE stops checking schedulingInfoList and ValueTag.
- At least two bits are used to indicate updating of EAB SIB in MIB or paging.
- the number of bits (2 or more) is defined by the number of possible combinations of the access barring parameter values within period T.
- This embodiment differs from the previous embodiment so that ValueTag is omitted, but as the previous embodiment, also this embodiment uses schedulingInfoList in SIB 1 .
- an LIE reads the indication bits and compares them to previously stored indication bits. If the compared bits differ from each other and if the EAB SIB is included in the schedulingInfoList in SIB 1 , the UE must to read EAB SIB. Otherwise, the UE doesn't read it.
- This embodiment as well as the previous embodiment cuts power consumption at MTC UEs.
- 4 bits can be used in MIB and paging in the following way:
- Window size of EAB SIB is preferably the same as the window size of the other SIBs. Position of the new LAB SIB should be fixed in BCCH (Broadcast Control Channel). Configuration updating speed of EAB SIB may differ from the configuration updating speed of the other SIBs. It should be noticed that when a MIB message is used as the starting message, there is 40 ms the minimum delay before UEs receive the MIB message.
- the apparatus sets values into the bit set, the values informing that the access barring is updated.
- the apparatus sets a value into the first bit of the bit set to inform that the access barring is updated.
- the apparatus uses one updating bit to inform UE that there is updated access barring information to be read. This can be done in idle mode and connected mode.
- the EAB SIB is included in schedulingInfoList in SIB 1 , and ValueTag is updated, the UE will immediately read the EAB SIB.
- MIB includes most of the frequently transmitted parameters. For example, if the updating bit is on, the UE reads the updated access barring information that is placed in a new EAB SIB (i.e. SIB 14 ). Otherwise, if the updating bit is off, the UE uses the stored EAB SIB information.
- the apparatus transmits a system information block message to the user equipment and then the apparatus transmits at least a part of the bit set to the user equipment by using a system information message determined in the system information block message.
- FIG. 2 illustrates an apparatus 201 , comprising:
- the apparatus illustrated in FIG. 3 is preferably caused to perform the method steps mentioned in the above. Some embodiments of apparatus 201 are listed here.
- the apparatus 201 sets values into the bit set 205 so that that bit set includes a category parameter, the category parameter discloses at least one category of categories A, B, and C to which the access barring is applied.
- the apparatus 201 sets values into the hit set 205 so that the bit set discloses information of the access barring to be updated.
- the apparatus 201 transmits a system information block message to the user equipment 210 and it transmits at least a part of the bit set to the user equipment by using a system information message specified in the system information block message.
- FIG. 3 illustrates an apparatus 301 , comprising:
- the apparatus 301 is preferably adapted to perform also the following operations.
- the apparatus 301 determines on the basis of values of the bit set that at least one of access classes 0-9 is barred, or at least one of access classes 0-9 is released.
- each bit in the bit set to be transmitted to UEs may have a specific function or meaning.
- the first bit of the bit set may disclose access barring on/of information.
- this is just one way to code the bit set. Any single bit in the bit set does not need to have a specific function or meaning. As shown in the examples, more than one bit can be interpreted when determining the information of the bit set.
- the exemplary embodiments can include, for example, any suitable network devices, base stations, eNodeBs, RAN devices, laptop computers, Internet appliances, handheld devices, cellular telephones, smart phones, wireless devices, and the like, capable of performing the processes of the exemplary embodiments.
- the devices and subsystems of the exemplary embodiments can communicate with each other using any suitable protocol and can be implemented using one or more programmed computer systems or devices.
- Embodiments of the present invention may be implemented in software, hardware, application logic or a combination of software, hardware and application logic.
- the application logic, software or instruction set is maintained on any one of various conventional computer-readable media.
- a “computer-readable medium” may be any media or means that can contain, store, communicate, propagate or transport the instructions for use by or in connection with an instruction execution system, apparatus, or device, such as a computer.
- a computer-readable medium may comprise a computer-readable storage medium that may be any media or means that can contain or store the instructions for use by or in connection with an instruction execution system, apparatus, or device, such as a computer.
- the exemplary embodiments can store information relating to various processes described herein. This information can be stored in one or more memories, such as a hard disk, optical disk, magneto-optical disk, RAM, and the like.
- All or a portion of the exemplary embodiments can be conveniently implemented using one or more general purpose processors, microprocessors, digital signal processors, micro-controllers, and the like, programmed according to the teachings of the exemplary embodiments of the present invention, as will be appreciated by those skilled in the computer and/or software art(s).
- Appropriate software can be readily prepared by programmers of ordinary skill based on the teachings of the exemplary embodiments, as will be appreciated by those skilled in the software art.
- the exemplary embodiments can be implemented by the preparation of application-specific integrated circuits or by interconnecting an appropriate network of conventional component circuits, as will be appreciated by those skilled in the electrical art(s).
- the exemplary embodiments are not limited to any specific combination of hardware and/or software.
- the exemplary embodiments of the present invention can include software for controlling the components of the exemplary embodiments, for driving the components of the exemplary embodiments, for enabling the components of the exemplary embodiments to interact with a human user, and the like.
- software can include, but is not limited to, device drivers, firmware, operating systems, development tools, applications software, and the like.
- Such computer readable media further can include the computer program of an embodiment of the present invention for performing all or a portion (if processing is distributed) of the processing performed in implementing the present invention.
- Computer code devices of the exemplary embodiments of the present invention can include any suitable interpretable or executable code mechanism, including but not limited to scripts, interpretable programs, dynamic link libraries (DLLs), Java classes and applets, complete executable programs, Common Object Request Broker Architecture (CORBA) objects, and the like
Abstract
Description
- This application is a continuation application under 35 USC §120 and 37 CFR 1.53(b) of co-pending U.S. patent application Ser. No. 13/365,544 (filed Feb. 3, 2012, now allowed), and also claims priority under 35 U.S.C. 119(a) and 37 CFR 1.55 from UK Patent Application Serial No. GB1201661.4 (filed Jan. 31, 2012).
- The present invention relates to a method and apparatus for determining information about access barring. Some embodiments of the present invention relate generally to Radio Resource Control (RRC) in a radio access network (RAN). A Universal Mobile Telecommunication System (UMTS) network and a long term evolution (LTE) network are some examples of RAN.
- The present application relates to RAN overload control. Important background information to the invention may be found in the 3rd Generation Partnership Project (3GPP) specification TS 22.011, section 4.3.4.
- The RRC protocol layer provides functions such as broadcasting system information in a RAN. Based on the characteristics and uses of this information, the information elements are grouped together into a master information block (MB) and different system information blocks (SIBs). The MIB is transferred on a broadcast channel every 40 ms and is repeated within 40 ms. A user equipment WE) acquires the MIB to decode a shared channel. The MIB contains a downlink system bandwidth, a physical HARQ indicator channel, and a system frame number, wherein HARQ is an acronym for hybrid adaptive repeat and request.
- SIB1 is the first system information block to be transferred after transferring MIB. It is scheduled in a fixed manner with a periodicity of 80 ms and is repeated within 80 ms. SIB1 contains cell-access-related information, information for cell selection, a frequency band indicator, etc. In addition, SIB1 contains SI-window length and a system information value tag. SIB1 is transmitted in a system information block message and the other SIBs are transmitted in system information (SI) messages. Each SI message is transmitted periodically in time domain windows, i.e. in SI-windows, and SI windows for different SI messages do not overlap. The length of SI-window defined in SIB1 is the same for all SI messages.
- SIB2 contains radio resource configuration information common to all UEs. In more detail, SIB2 includes access barring information, radio resource configuration of common channels, and a lot of other information. SIB10 contains earthquake and tsunami warning system (ETWS) primary notification and SIB11 contains ETWS secondary notification by which users of UEs can be warned in case of an earthquake or a tsunami.
- When the system information is updated, SI messages are repeated during modification periods. During the first modification period, the system information modification indicator is sent in a paging message to an UE, and during the next modification period, the RAN transmits the updated system information to the UE. The UE verifies that its system information remains valid by either checking systemInfoValueTag in SystemInformationBlockType1 after the modification period boundary. Alternatively, the LIE attempts to find systemInfoModification indication during a modification period. If no paging message is received by the UE during the modification period, the UE assumes that no change of system information will occur during the next modification period. If the UE is in RRC_CONNECTED mode and it receives the paging message, it deduces from the presence or absence of systemInfoModification whether a change of system information will occur in the next modification period or not.
- As mentioned above, the SIB 2 includes the access barring information. In more detail, the SIB2 is used in access class barring (ACB) which is today's method to implement access barring in LTE networks. ACB comprises a number of parameters to indicate which of the access classes are currently barred and each UE should compare its access class to the barred access classes.
- The maximum modification period during which the access barring information reaches UEs is calculated as: modificationPeriodCoeff×defaultPagingCycle. For example, the maximum modification period could be in radio frames (rt): 16×256 rf=4096 rf which requires 40960 ms. Thus, the access barring information reaches the UEs quite slowly. The delay associated with reading the updated system information (the access barring information) is not acceptable in some overload scenarios, in terms of being able to protect the RAN from excessive access attempts. The sudden surge in access attempts may happen because of an earthquake or a tsunami, but more probably because of smart metering, fleet management, civilian surveillance, etc. applications.
- In one embodiment of the present invention a method of informing a user equipment about access barring comprises the steps of:
- determining a bit set for the access barring, wherein the bit set includes at least two bits and discloses at least whether the access barring is on or oft
- placing at least a first bit of the bit set in a starting message, the starting message being one of the following messages: a master information block message or a paging message; and
- transmitting the bit set in a message set via a radio interface to the user equipment, the message set including at least the starting message.
- In one embodiment of the present invention there is an apparatus, comprising:
- at least one processor; and
- at least one memory including computer program code,
- the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to perform at least the above-mentioned steps of the method of informing the user equipment about the access barring.
- These two embodiments have at least one of following advantages: the access barring is flexible or the access barring operates fast. The access barring is flexible because it can be adjusted in many ways. The access barring operates very fast when it uses only the starting message, i.e. the master information block message or the paging message.
- In one embodiment of the present invention there is an apparatus, comprising:
- at least one processor; and
- at least one memory including computer program code,
- the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to perform at least the following:
-
- receiving a message set transmitted via a radio interface to a user equipment, the message set including at least a starting message that is a paging message;
- obtaining at least a first hit of a bit set from the starting message, wherein the bit set includes at least two hits and is intended for access barring; and
- determining information of the bit set; the information at least disclosing whether the access barring is on or off; and
- receiving a system information block transmitted via the radio interface to the user equipment, the system information block comprising a scheduling information list that lists a further system information block that contains access barring parameters.
- This embodiment of the present invention intended for receiving the message set transmitted via the radio interface have at least one of following advantages: the access barring is flexible in the user equipment or the access barring can be quickly set on in the user equipment. The access barring is flexible because it can be adjusted in many ways. The access barring operates very fast when it is set on by the starting message. Various aspects of embodiments and examples of the present invention are set out in the claims.
- In other embodiments of the present invention the method of claim 1 further comprises at least one of the following sub-substeps.
- The step of determining the bit set comprises the sub-step of:
-
- setting values into the bit set so that the bit set discloses at least one of access classes 0-9 to be barred.
- The step of determining the bit set comprises the sub-step of:
-
- setting values into the bit set so that the bit set discloses at least one of access classes 0-9 to be released.
- The step of determining the bit set comprises the sub-step of:
-
- setting values into the bit set so that that bit set includes a category parameter, the category parameter disclosing at least one category of categories A, B, and C to which the access barring is applied.
- The step of determining the bit set comprises the sub-step of
-
- setting values into the bit set so that the bit set includes a network parameter, the network parameter disclosing at least one public land mobile network to which the access barring is applied.
- The step of determining the hit set comprises the sub-step of:
-
- setting values into the bit set so that the bit set includes a domain parameter disclosing a domain set to which the access barring is applied; the domain set including at least one of the following domains: a circuit switched domain, a packet switched domain.
- The step of determining the bit set comprises the sub-step of
-
- setting values into the bit set so that the bit set discloses information of the access barring to be updated.
- The step of transmitting the bit set comprises the sub-steps of:
-
- transmitting a system information block message to the user equipment; and
- transmitting at least a part of the bit set to the user equipment by using a system information message determined in the system information block message.
- In other embodiments of the present invention the apparatus operating in the RAN is caused to perform at least one of the following operations.
- The apparatus is caused to perform: setting values into the bit set so that that bit set includes a category parameter, the category parameter disclosing at least one category of categories A, B, and C to which the access barring is applied.
- The apparatus is caused to perform: setting values into the bit set so that the bit set discloses information of the access barring to be updated.
- The apparatus is caused to perform: transmitting a system information block message to the user equipment; and transmitting at least a part of the bit set to the user equipment by using a system information message specified in the system information block message.
- The apparatus is caused to perform: determining on the basis of values of the bit set that at least one of access classes 0-9 is barred.
- The apparatus is caused to perform: determining on e basis of values of the bit set that at least one of access classes 0-9 is released.
- The apparatus is caused to perform: detecting in the bit set a category parameter, the category parameter disclosing at least one category of categories A, B, and C to which the access barring is applied.
- In other embodiments of the present invention the apparatus operating in the RAN is caused to perform at least one of the following operations.
- The apparatus is caused to perform: detecting in the bit set a network parameter, the network parameter disclosing at least one public land mobile network to which the access barring is applied.
- The apparatus is caused to perform: detecting in the bit set a domain parameter, the domain parameter disclosing a domain set to which the access barring is applied; the domain set including at least one of the following domains: a circuit switched domain, a packet switched domain.
- The apparatus is caused to perform: determining on the basis of the bit set that the access barring is updated.
- The apparatus is caused to perform: receiving a system information block message; receiving a system information message defined in the system information block message; and obtaining at least a part of the bit set from the system information message.
- For a more complete understanding of examples and embodiments of the present invention, reference is now made to the following descriptions taken in connection with the accompanying drawings in which:
-
FIG. 1 illustrates a method in one embodiment of the present invention, the method performing access barring by transmitting a bit set via a radio interface to a user equipment; -
FIG. 2 illustrates an apparatus in one embodiment of the present invention, the apparatus performing access barring by transmitting a bit set via a radio interface to a user equipment; and -
FIG. 3 illustrates an apparatus in one embodiment of the present invention, the apparatus performing access barring by receiving a bit set from a radio interface. - The term “bit set” used in the embodiments of the present invention refers to a set of bits which are transmitted via a radio interface to UEs in order to bar access attempts from the UEs. When the number of UEs is N, the access barring concerns 0-N UEs. in some embodiments all the bits are transmitted in one message and in some other embodiments the bits are transmitted in different messages. Basically, the number of bits is unlimited, but 18 bits or less is enough in most embodiments.
- The invention can be implemented in a network side and in a user equipment side. In the network side it can be implemented in a base station, or in more specific, in eNodeB, but there are other possibilities, too.
- An example embodiment of the present invention and its potential advantages is understood by referring to
FIGS. 1 to 3 of the drawings. -
FIG. 1 illustrates a method of informing a user equipment about access barring, the method comprising the steps of: -
- determining 101 a bit set for the access barring, wherein the bit set includes at least two bits and discloses at least whether the access barring is on or off;
- placing 102 at least a first bit of the bit set in a starting message, the starting message being one the following messages: a master information block message or a paging message; and
- transmitting 103 the bit set in a message set via a radio interface to the user equipment, the message set including at least the starting message.
- In an embodiment of the present invention related to barring access classes, an apparatus performing the method sets values into the bit set so that the bit set discloses at least one of access classes 0-9 to be barred.
- In an embodiment of the present invention related to releasing access classes, the apparatus sets values into the bit set so that the bit set discloses at least one of access classes 0-9 to be released.
- The above-mentioned embodiment related to barring the access classes and the above-mentioned embodiment related to releasing the access classes enable very flexible access barring and, if needed, they also enable very fast access barring. In these embodiments the bit set discloses which access classes are barred. When the bit set includes two bits, the values of the bit set disclose, for example, the following information:
- 00=barring off.
- 01=access classes 0-4 barred (50% barring),
- 10=access classes 0-9 barred (100% barring),
- 11=re-acquire information of the access barring.
- Alternatively, the values 01 and 10 indicate, for example, the following information:
- 01=access classes 0-4 free, access classes 5-9 barred,
- 10=access classes 5-9 free, access classes 0-4 barred,
- Alternatively, the values 01 and 10 may indicate the following:
- 01=one access class is released, starting from access class 0,
- 10=access classes 0-9 barred (100% barring).
- In this example, an UE needs to count how many times it has received the bit set with values 01. The first time, it determines that access class 0 is released, i.e. UEs having access class 0 are able to access the RAN. The second time, the UE determines that access class 1 is released. Finally, the tenth time, the last access class, i.e. access class 9, is released at the UE.
- The bit set may include one bit for each access class 0-9, but then ten bits are needed to disclose which access classes are barred. When this patent application was written MIB included the spare bits. Those spare bits are useful in various purposes in future, thus they should not be wasted. As shown in the above examples, it is possible to implement a new kind of access barring by using only two bits.
- The term “extended access barring” (EAB) refers to access barring that can be adjusted in various ways. EAB can also be understood as flexible access barring. When using EAB access classes to be barred are indicated in one way or other. In addition, EAB may include a category parameter, a network parameter, and/or a domain parameter. These parameters are discussed in the following,
- In one embodiment of the present invention, the apparatus sets values into the bit set so that that bit set includes a category parameter, the category parameter disclosing at least one category of categories A, B, and C to which the access barring is applied. The categories are specified as follows:
-
- A) all devices are configured for the access barring;
- B) all such devices are configured for the access barring which fail to be a part of their Home Public Land Mobile Network (HPLMN) or Public Land Mobile Network (PLMN); and
- C) all such devices are configured for the access barring which fail to be a part of their HPLMN or ePLMN, or which fail to be a part of the PLMN that is listed as the most preferred PLMN in the country where UE is roaming.
- The category parameter can be coded with two bits.
- In one embodiment of the present invention the apparatus sets values into the bit set so that the bit set includes a network parameter, the network parameter disclosing at least one public land mobile network (PLMN) to which the access barring is applied. The HE may have access to a number of PLMNs and by the network parameter some of them (or all of them) can be barred from the HE. The network parameter can be coded with three bits.
- In one embodiment of the present invention the apparatus sets values into the bit set so that the bit set includes a domain parameter disclosing a domain set to which the access barring is applied; the domain set including at least one of the following domains: a circuit switched domain, a packet switched domain. The parameter can be coded with two bits.
- In one embodiment of the present invention the access barring is implemented with eight bits so that the bit set includes two bits for the on/off information and for the access classes (as illustrated in the above examples), two bit for the category parameter, three bits for the network parameter, and two bits for the domain information.
- In one embodiment of the present invention, the apparatus sets a value into the first bit, the value informing that the access barring is on. In more detail, the apparatus uses one on/off bit and one updating bit to inform HE that there is updated access barring information to be read. This can be done in idle mode and connected mode. A MIB includes most of the frequently transmitted parameters. For example, if the on/off bit and the updating bit are on, the UE reads the updated access barring information that is placed in a new EAB SIB. The new EAB SIB is, for example, SIB14. Otherwise, if the on/off bit is on and updating bit is off, the UE does not read SIB14 but uses the previous SIB14 information. Otherwise, if the on/off bit is off, the UE discards the stored SIB14 and does not read a new SIB14.
- In one embodiment of the present invention, the apparatus sets a value into the first bit, the value informing that the access barring is on. In more detail, the apparatus uses one on/off bit in MIB or paging and one updating bit to inform UE that there is updated access barring information to be read. This can be done in idle mode and connected mode. A MIB includes most of the frequently transmitted parameters. For example, if the on/off bit and the updating bit are on, the UE reads the updated access barring information that is placed in a new EAB SIB. The new EAB SIB is, for example, SIB14. Otherwise, if the on/off bit is on and updating bit is off, the UE does not read SIB14 but uses the previous SIB14 information. Otherwise, if the on/off bit is off, the UE discards the stored SIB14 and does not read a new SIB14. This kind of access barring is termed “EAB barring” and it is implemented, for example, in the following way:
-
- 00=No EAB barring; discard stored EAB information,
- 10=EAB barring is on, no EAB Update, use previously read EAB information,
- 11=EAB barring is on, read new EAB SIB information.
- In one embodiment of the present invention the overload problem is alleviated by the EAB barring. In this embodiment evolved NodeB (eNB) sets value 0 into an access barring on/off bit to allow machine-type-communication user equipments (MTC UEs) to access the RAN, and the eNB set value 1 into an updating bit. The access barring on/off bit may be the first bit and the updating bit may be the second bit, but they can be coded in some other way, too. The updating bit keeps its value (value 1) for a fixed period that is, for example, 3 hours. When the fixed period ends, the updating bit is set value 0. In other words, value 0 is the default value at the MTC UEs, but the eNB can change the value 0 to 1 for the fixed period. This arrangement is one example of the flexibility of the access barring related to the invention. In more detail, it cuts power consumption at the MTC UEs. If an MTC UE tries to access the network in a period of 24 hours before it accesses the network, it would check MIB for EAR on/off and updating bit, the MTC UEs would always react to the instant of the network situation whenever before its access.
- In one embodiment of the present invention, the apparatus sets values into the bit set, the values informing that the access barring is updated.
- It is possible to have different access barring schemas in the same RAN. In addition to the known ACB (access class barring) schema that uses SIB2, it is possible to implement a fast EAB schema. The fast EAB schema is based on use of a starting message and EAR SIB (the terms “starting message” and “EAB SIB” are specified in the above).
- In one embodiment of the present invention, the apparatus sets a value into the first bit of the bit set to inform that the fast EAR schema is enabled, and it places a part of the bit set in binary variables of SIB1. In more detail, the apparatus uses the first bit to enable an UE to obey the fast EAB schema, and it uses the binary variables schedulinglofoList and ValueTag in SIB1 to inform about changes in the access barring. This embodiment can be utilized in the idle mode and in the connected mode. When the EAB SIB is included in schedulingInfoList in MI, and ValueTag in SIB1 is updated, the UE will immediately read the LAB SIB. The number of bits for ValueTag is defined by the number of possible combinations of access barring parameter values within period T. Let us assume that the EAR SIB must disclose at most 16 different parameter values. Then four bits are enough to disclose the 16 values and thus ValueTag is composed of 4 bits. In addition, a default period is set in Tinier. The default period is, for example 3 hours during which an updating bit has value 1. This bit has the following effect. When the updating bit carries value l the UE cheeks schedulingInfoList and ValueTag to determine whether the UL should read EAB SIB. When Timer expires, the updating bit is turned to 0 and the UE stops checking schedulingInfoList and ValueTag.
- In one embodiment of the present invention at least two bits are used to indicate updating of EAB SIB in MIB or paging. The number of bits (2 or more) is defined by the number of possible combinations of the access barring parameter values within period T. This embodiment differs from the previous embodiment so that ValueTag is omitted, but as the previous embodiment, also this embodiment uses schedulingInfoList in SIB1. In more detail, an LIE reads the indication bits and compares them to previously stored indication bits. If the compared bits differ from each other and if the EAB SIB is included in the schedulingInfoList in SIB1, the UE must to read EAB SIB. Otherwise, the UE doesn't read it. This embodiment as well as the previous embodiment cuts power consumption at MTC UEs.
- For example, 4 bits can be used in MIB and paging in the following way:
-
- 0000=No EAB barring; discard stored EAB info
- 0001=EAB barring is on, read new LAB info
- 0010=EAB barring is on, read new EAB into
- 0011=EAB barring is on, read new EAB info
- . . . . . .
- 1110=EAB barring is on, read new EAB info
- 1111=EAB barring is on, no LAB update use previous read EAB into
- Window size of EAB SIB is preferably the same as the window size of the other SIBs. Position of the new LAB SIB should be fixed in BCCH (Broadcast Control Channel). Configuration updating speed of EAB SIB may differ from the configuration updating speed of the other SIBs. It should be noticed that when a MIB message is used as the starting message, there is 40 ms the minimum delay before UEs receive the MIB message.
- In one embodiment of the present invention, the apparatus sets values into the bit set, the values informing that the access barring is updated.
- In one embodiment of the present invention, the apparatus sets a value into the first bit of the bit set to inform that the access barring is updated. In other words, the apparatus uses one updating bit to inform UE that there is updated access barring information to be read. This can be done in idle mode and connected mode. If the EAB SIB is included in schedulingInfoList in SIB1, and ValueTag is updated, the UE will immediately read the EAB SIB. MIB includes most of the frequently transmitted parameters. For example, if the updating bit is on, the UE reads the updated access barring information that is placed in a new EAB SIB (i.e. SIB 14). Otherwise, if the updating bit is off, the UE uses the stored EAB SIB information.
- In one embodiment of the present invention, the apparatus transmits a system information block message to the user equipment and then the apparatus transmits at least a part of the bit set to the user equipment by using a system information message determined in the system information block message.
-
FIG. 2 illustrates anapparatus 201, comprising: -
- at least one
processor 202; and - at least one
memory 203 includingcomputer program code 204, - the at least one memory and the computer program code. The
apparatus 201 determines a bit set 205 for the access barring, wherein the hit set includes at least two bits and discloses at least whether the access barring is on or off. Then theapparatus 201 places at least afirst bit 206 of the bit set in a startingmessage 207, the starting message being one the following messages: a master information block message or a paging message; and finally theapparatus 201 transmits the bit set in a message set 208 via aradio interface 209 to auser equipment 210, the message set including at least the starting message. Theapparatus 201 processes the bit set 205 in itsmemory 203. If it is possible to place the whole bit set 205 into the startingmessage 207, theapparatus 201 may do so, but in many embodiments the bit set 205 need to be divided into parts and transmit those parts in at least two messages to theuser equipment 210.
- at least one
- The apparatus illustrated in
FIG. 3 is preferably caused to perform the method steps mentioned in the above. Some embodiments ofapparatus 201 are listed here. Theapparatus 201 sets values into the bit set 205 so that that bit set includes a category parameter, the category parameter discloses at least one category of categories A, B, and C to which the access barring is applied. Theapparatus 201 sets values into the hit set 205 so that the bit set discloses information of the access barring to be updated. Theapparatus 201 transmits a system information block message to theuser equipment 210 and it transmits at least a part of the bit set to the user equipment by using a system information message specified in the system information block message. -
FIG. 3 illustrates anapparatus 301, comprising: -
- at least one
processor 302; and - at least one
memory 303 includingcomputer program code 304. - The
apparatus 301 is auser equipment 307 or it is a component of theuser equipment 307. The apparatus operates in the following way. Theapparatus 301 receives a message set 305 transmitted via aradio interface 306 to theuser equipment 307, the message set including at least a startingmessage 308 that is one the following messages: a master information block message or a paging message. Then theapparatus 301 obtains at least a first bit 309 of a bit set 310 from the starting message, wherein the bit set includes at least two bits and is intended for access barring and finally theapparatus 301 determines information of the bit set. This information at least discloses whether the access barring is on or off.
- at least one
- The
apparatus 301 is preferably adapted to perform also the following operations. Theapparatus 301 determines on the basis of values of the bit set that at least one of access classes 0-9 is barred, or at least one of access classes 0-9 is released. -
- The
apparatus 301 detects in the bit set 310 a category parameter, the category parameter disclosing at least one category of categories A, B, and C to which the access barring is applied. - The
apparatus 301 detects in the bit set 310 a network parameter, the network parameter disclosing at least one public land mobile network to which the access barring is applied. - The
apparatus 301 detects in the bit set 310 a domain parameter, the domain parameter disclosing a domain set to which the access barring is applied; the domain set including at least one of the following domains: a circuit switched domain, a packet switched domain. - The
apparatus 301 determines on the basis of the bit set 310 that the access barring is updated. Then theapparatus 301 receives a system information block message and a system information message defined in the system information block message. Finally, theapparatus 301 obtains at least a part of the bit set from the system information message.
- The
- Relating to the all embodiments to the invention it should be noticed that each bit in the bit set to be transmitted to UEs may have a specific function or meaning. For example, the first bit of the bit set may disclose access barring on/of information. As a person skilled in the art knows, this is just one way to code the bit set. Any single bit in the bit set does not need to have a specific function or meaning. As shown in the examples, more than one bit can be interpreted when determining the information of the bit set.
- The exemplary embodiments can include, for example, any suitable network devices, base stations, eNodeBs, RAN devices, laptop computers, Internet appliances, handheld devices, cellular telephones, smart phones, wireless devices, and the like, capable of performing the processes of the exemplary embodiments. The devices and subsystems of the exemplary embodiments can communicate with each other using any suitable protocol and can be implemented using one or more programmed computer systems or devices.
- Embodiments of the present invention may be implemented in software, hardware, application logic or a combination of software, hardware and application logic.
- In an example embodiment, the application logic, software or instruction set is maintained on any one of various conventional computer-readable media. In the context of this document, a “computer-readable medium” may be any media or means that can contain, store, communicate, propagate or transport the instructions for use by or in connection with an instruction execution system, apparatus, or device, such as a computer. A computer-readable medium may comprise a computer-readable storage medium that may be any media or means that can contain or store the instructions for use by or in connection with an instruction execution system, apparatus, or device, such as a computer. The exemplary embodiments can store information relating to various processes described herein. This information can be stored in one or more memories, such as a hard disk, optical disk, magneto-optical disk, RAM, and the like.
- All or a portion of the exemplary embodiments can be conveniently implemented using one or more general purpose processors, microprocessors, digital signal processors, micro-controllers, and the like, programmed according to the teachings of the exemplary embodiments of the present invention, as will be appreciated by those skilled in the computer and/or software art(s). Appropriate software can be readily prepared by programmers of ordinary skill based on the teachings of the exemplary embodiments, as will be appreciated by those skilled in the software art. In addition, the exemplary embodiments can be implemented by the preparation of application-specific integrated circuits or by interconnecting an appropriate network of conventional component circuits, as will be appreciated by those skilled in the electrical art(s). Thus, the exemplary embodiments are not limited to any specific combination of hardware and/or software.
- Stored on any one or on a combination of computer readable media, the exemplary embodiments of the present invention can include software for controlling the components of the exemplary embodiments, for driving the components of the exemplary embodiments, for enabling the components of the exemplary embodiments to interact with a human user, and the like. Such software can include, but is not limited to, device drivers, firmware, operating systems, development tools, applications software, and the like. Such computer readable media further can include the computer program of an embodiment of the present invention for performing all or a portion (if processing is distributed) of the processing performed in implementing the present invention. Computer code devices of the exemplary embodiments of the present invention can include any suitable interpretable or executable code mechanism, including but not limited to scripts, interpretable programs, dynamic link libraries (DLLs), Java classes and applets, complete executable programs, Common Object Request Broker Architecture (CORBA) objects, and the like
- While the present invention has been described in connection with a number of exemplary embodiments, and implementations, the present invention is not so limited, but rather covers various modifications, and equivalent arrangements, which fall within the purview of prospective claims.
Claims (20)
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101932107B1 (en) * | 2011-05-02 | 2018-12-24 | 삼성전자 주식회사 | Method and apparatus for performining and controlling access of user equipment |
DE112011106091B3 (en) * | 2011-08-11 | 2016-11-24 | Intel Corporation | Extended access lock |
GB2499189B (en) * | 2012-01-31 | 2014-02-12 | Broadcom Corp | Method and apparatus for informing UE about access barring |
US20130250758A1 (en) * | 2012-03-24 | 2013-09-26 | Institute For Information Industry | Base station, wireless end device, and transmission barring methods thereof |
CN104509169B (en) * | 2012-05-14 | 2019-04-26 | 诺基亚技术有限公司 | The access barred of extension for CSG cell |
CN104756544B (en) | 2012-09-27 | 2019-08-16 | Lg电子株式会社 | The method and apparatus of extension access restriction parameter are received in a wireless communication system |
US9307447B2 (en) * | 2012-10-31 | 2016-04-05 | Telefonaktiebolaget Lm Ericsson (Publ) | Enhanced extended access class barring |
US9357476B2 (en) * | 2013-03-28 | 2016-05-31 | Tejas Networks Limited | Method and system for system information acquisition optimization |
CN104322108A (en) * | 2013-05-03 | 2015-01-28 | 华为技术有限公司 | Access control method and device |
EP4040875A1 (en) * | 2013-08-09 | 2022-08-10 | Telefonaktiebolaget LM Ericsson (publ) | System information broadcast for machine-type communication |
US20160119893A1 (en) * | 2014-10-24 | 2016-04-28 | Acer Incorporated | Method of handling serving cell becoming barred status, base station using the same, and user equipment using the same |
TWI583227B (en) * | 2014-10-24 | 2017-05-11 | 宏碁股份有限公司 | Method of handling serving cell becoming barred status, base station using the same, and user equipment using the same |
WO2017101042A1 (en) * | 2015-12-16 | 2017-06-22 | 富士通株式会社 | Access control parameter update apparatus and method, and communication system |
MX2018006511A (en) * | 2015-12-17 | 2018-08-15 | Ericsson Telefon Ab L M | A wireless device, a radio network node, and methods therein for access control in a communications network. |
WO2017121070A1 (en) | 2016-01-14 | 2017-07-20 | 华为技术有限公司 | Method, apparatus, and device for transmitting activation-related system information |
EP3545708B1 (en) * | 2016-11-25 | 2022-01-05 | Telefonaktiebolaget LM Ericsson (PUBL) | Method and apparatus for controlling a radio access connection to a telecommunications network |
US10798640B2 (en) * | 2017-01-06 | 2020-10-06 | Mediatek Inc. | Enhancement of unified access control |
WO2018165909A1 (en) * | 2017-03-15 | 2018-09-20 | 富士通株式会社 | Access barring method and apparatus, and communication system |
US20180288676A1 (en) | 2017-04-02 | 2018-10-04 | Chia-Hung Wei | Access control in new radio |
US10749653B2 (en) * | 2017-11-28 | 2020-08-18 | Qualcomm Incorporated | Techniques and apparatuses for providing system information updates in a system using bandwidth parts |
EP3806544B1 (en) | 2018-05-31 | 2023-02-22 | Beijing Xiaomi Mobile Software Co., Ltd. | Ac restriction method and device |
US10681559B2 (en) * | 2018-06-29 | 2020-06-09 | Verizon Patent And Licensing Inc. | Method and system for supporting voice calls in 5G new radio environments |
CN114631355B (en) * | 2020-09-28 | 2024-01-30 | 北京小米移动软件有限公司 | Access control method, AC decision rule issuing method and device |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040025007A1 (en) * | 2002-07-30 | 2004-02-05 | Sreekrishna Kotnur | Restricting access to a method in a component |
US8244280B2 (en) * | 2006-09-05 | 2012-08-14 | Research In Motion Limited | Apparatus, and associated method, for configuring a page message used to page an access terminal in a radio communication system pursuant to a partial identity comparison scheme |
DE102006044529B4 (en) * | 2006-09-21 | 2009-08-27 | Infineon Technologies Ag | A method for generating and transmitting system information, network device, method for checking whether a mobile subscriber unit, the access is made possible in a mobile radio cell, mobile subscriber unit and method for determining valid system information |
TW200833134A (en) * | 2007-01-30 | 2008-08-01 | Interdigital Tech Corp | Cell access restriction and WTRU access class optimization in LTE system information |
DE102007060377A1 (en) * | 2007-12-12 | 2009-07-02 | T-Mobile Internationale Ag | Method for establishing prioritized incoming calls in overload situations in a mobile radio network |
US9585069B2 (en) * | 2008-06-19 | 2017-02-28 | Qualcomm Incorporated | Access terminal assisted node identifier confusion resolution |
US8457049B2 (en) * | 2008-09-19 | 2013-06-04 | Interdigital Patent Holdings, Inc. | Method and apparatus for handling system information change |
US20100232524A1 (en) * | 2009-03-12 | 2010-09-16 | Qualcomm Incorporated | Method and apparatus for system bandwidth indication |
US8837443B2 (en) * | 2010-08-13 | 2014-09-16 | Sharp Kabushiki Kaisha | Reducing congestion in wireless communication networks |
DE112011106091B3 (en) * | 2011-08-11 | 2016-11-24 | Intel Corporation | Extended access lock |
US8938233B2 (en) * | 2011-08-16 | 2015-01-20 | Mediatek Inc. | Enhanced access control in LTE advanced systems |
KR101528114B1 (en) * | 2011-08-30 | 2015-06-11 | 엘지전자 주식회사 | Method and apparatus for performing random access with extended access barring |
JP5345195B2 (en) * | 2011-11-07 | 2013-11-20 | 株式会社エヌ・ティ・ティ・ドコモ | Mobile station |
US8942091B2 (en) * | 2011-11-09 | 2015-01-27 | Industrial Technology Research Institute | Method and apparatus for notifying access control information |
US9078257B2 (en) * | 2011-11-11 | 2015-07-07 | Intel Coproration | Random backoff for extended access barring |
US8937907B2 (en) * | 2011-11-11 | 2015-01-20 | Lg Electronics Inc. | Method and apparatus for handling signals used for extended access class barring in a wireless communication |
US8917640B2 (en) * | 2011-11-23 | 2014-12-23 | Lg Electronics Inc. | Method and apparatus for handling signals used for delay tolerant access in a wireless communication system |
US9949166B2 (en) * | 2012-01-23 | 2018-04-17 | Intel Corporation | Extended access barring (EAB) signaling for a core network (CN) and node |
GB2499189B (en) * | 2012-01-31 | 2014-02-12 | Broadcom Corp | Method and apparatus for informing UE about access barring |
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GB2499189A (en) | 2013-08-14 |
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