WO2018028537A1 - 接入控制方法及装置、系统 - Google Patents

接入控制方法及装置、系统 Download PDF

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Publication number
WO2018028537A1
WO2018028537A1 PCT/CN2017/096181 CN2017096181W WO2018028537A1 WO 2018028537 A1 WO2018028537 A1 WO 2018028537A1 CN 2017096181 W CN2017096181 W CN 2017096181W WO 2018028537 A1 WO2018028537 A1 WO 2018028537A1
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WIPO (PCT)
Prior art keywords
coverage enhancement
access control
user equipment
access
control information
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PCT/CN2017/096181
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English (en)
French (fr)
Inventor
戴谦
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中兴通讯股份有限公司
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to EP17838667.8A priority Critical patent/EP3525518B1/en
Publication of WO2018028537A1 publication Critical patent/WO2018028537A1/zh
Priority to US16/274,147 priority patent/US20190281625A1/en

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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
    • H04W48/06—Access restriction performed under specific conditions based on traffic conditions
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel 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

Definitions

  • the embodiments of the present invention relate to the field of communications, and in particular, to an access control method, apparatus, and system.
  • LTE Long-Term Evolution
  • eMTC narrow-band air interface technology
  • NBIoT NearBand Internet of Things
  • High service data-based machine type communication avoids the small data of a large number of machine type terminals affecting the spectrum efficiency of the broadband LTE system, and increases the user capacity carried by the unit bandwidth.
  • the LTE base station may simultaneously deploy multiple narrowband eMTC or NBIOT frequency points in a co-site mode, and divide spectrum resources for the eMTC or NBIOT system in an inband (within system bandwidth) mode.
  • eMTC and NBIOT systems can also support real-time services, and such services are characterized by frequent arrivals of data packets. Delay sensitive and large data traffic. Narrowband eMTC or NBIOT introduces coverage enhancement technology due to innate resource limitation, and its load capacity for large traffic data cannot be compared with LTE system. Therefore, if the number of terminals supporting real-time services increases, it is easy to cause narrowband systems. Overload.
  • An embodiment of the present invention provides an access control method, apparatus, and system, to at least solve the phase Inefficient use of user-side resources in the technology can easily lead to excessive system load.
  • an access control method including: a network side network element determines to implement access control for a coverage enhanced user equipment; and the network side network element sends an access enhancement level related access And control information, where the access control information is used to indicate, to the user equipment, a random access condition of the network side network element.
  • another access control method including: a user equipment acquiring access control information related to a coverage enhancement level; and the user equipment according to the access enhancement related to an coverage enhancement level The information determines whether the random access condition initiated to the network side is met.
  • an access control apparatus which is applied to a network side network element, and includes: a determining module, configured to determine to implement access control for a coverage enhanced user equipment; and a sending module configured to send The access control information related to the coverage enhancement level, where the access control information is used to indicate the random access condition of the network side network element to the user equipment.
  • an access control apparatus configured to: an obtaining module configured to acquire access control information related to a coverage enhancement level; and a determining module configured to Determining, according to the access control information related to the coverage enhancement level, whether the random access condition initiated to the network side is met.
  • an access control system including: a network side device, a user terminal on the terminal side, and the network side device includes: a determining module, configured to determine to implement the user equipment for coverage enhancement
  • the access control is configured to send the access control information related to the coverage enhancement level, where the access control information is used to indicate the random access condition of the network side network element to the user equipment;
  • a storage medium is also provided.
  • the storage medium is arranged to store program code for performing the following steps:
  • the access control information related to the coverage enhancement level is sent, where the access control information is used to indicate the random access condition of the network side network element to the user equipment.
  • the network side network element determines to implement access control for the coverage enhanced user equipment; the network side network element sends access control information related to the coverage enhancement level, and the access control information is used for the user
  • the device indicates a random access condition of the network side network element. Because the access control information related to the coverage enhancement level is sent, the terminal on the receiving side can determine whether the terminal capability and the transmission service meet the access condition based on the access control information, and solve the problem that the user plane resource inefficient use in the related technology is easy to cause the system. The problem of excessive load ensures the utilization of resources while controlling the load of the system.
  • FIG. 1 is a flowchart of an access control method according to an embodiment of the present invention.
  • FIG. 2 is a flowchart of another access control method according to an embodiment of the present invention.
  • FIG. 3 is a structural block diagram of an access control system according to an embodiment of the present invention.
  • FIG. 5 is a flow chart of a specific embodiment of the present invention.
  • FIG. 1 is a flowchart of an access control method according to an embodiment of the present invention. As shown in FIG. 1, the process includes the following steps:
  • Step S102 The network side network element determines to implement access control for the coverage enhanced user equipment.
  • Step S104 The network side network element sends the access control information related to the coverage enhancement level, where the access control information is used to indicate the random access condition of the network side network element to the user equipment.
  • the network side network element determines to implement access control for the coverage enhanced user equipment; the network side network element sends the access control information related to the coverage enhancement level, and the access control information is used to indicate the network side network element to the user equipment. Random access conditions. Because the access control information related to the coverage enhancement level is sent, the terminal on the receiving side can determine whether the terminal capability and the transmission service meet the access condition based on the access control information, and solve the problem that the user plane resource inefficient use in the related technology is easy to cause the system. The problem of excessive load ensures the utilization of resources while controlling the load of the system.
  • the network element side network element of the foregoing step may be an access network or a core network element, such as a base station, and may be implemented by a processor and a radio frequency circuit of the base station, but is not limited thereto.
  • the network side network element sends the access control information related to the coverage enhancement level, where the network side network element sends the access control information by using a system message broadcast.
  • the access control information includes, but is not limited to, an coverage enhancement level or an coverage enhancement repetition factor or an upper limit of the coverage enhancement mode, an coverage enhancement level that does not allow user equipment access, or an coverage enhancement repetition factor. Or covering the lower limit of the enhanced mode, the coverage enhancement level or the coverage enhancement repetition factor or the coverage enhancement mode range that allows the user equipment to access, the coverage enhancement level or the coverage enhancement repetition factor or the coverage enhancement mode that does not allow user equipment access.
  • the access control information includes one or more categories, wherein each category of access control messages sets a dedicated coverage enhancement level.
  • the classification manner of the access control information of one or more categories includes the following at least 1: Classification by business type and classification according to the capabilities of user equipment.
  • the dimension of the service type includes: the real-time nature of the service, and the rate of the service requirement.
  • the real-time granularity of the service includes one of the following: dividing the service according to real-time and non-real-time, and dividing the service according to different levels of delay requirements; or, the granularity of the required rate of the service includes: The service is divided into high-rate services and low-rate services according to the rate, or the services are divided according to different levels of the rate.
  • the service type is classified according to the actual service type, including: voice service, video stream service, wearable device service, and health monitoring service.
  • the dividing dimension of the capability of the user equipment includes: whether to support a rate higher than a preset rate, whether to support a bandwidth greater than a preset bandwidth, whether to support multiple narrowband transmissions, and whether to support coverage enhancement.
  • the access control information further includes: a preset ratio that allows the target user equipment that satisfies the access control condition to perform random access, or a preset proportion that the target user equipment that satisfies the access control condition performs random access.
  • the preset ratio is set by using a scale factor of less than one; or, for the user equipments of different access levels AC, respectively, an indication indicating that access is allowed or not allowed is set.
  • FIG. 2 is a flowchart of another access control method according to an embodiment of the present invention. As shown in FIG. 2, the process includes the following steps:
  • Step S202 The user equipment acquires access control information related to the coverage enhancement level.
  • Step S204 The user equipment determines, according to the access control information related to the coverage enhancement level, whether the random access condition initiated to the network side is met.
  • the execution body of the foregoing step may be a terminal, such as a mobile phone, etc., and may be implemented by a processor and a radio frequency circuit of the terminal, but is not limited thereto.
  • the acquiring, by the user equipment, access control information related to the coverage enhancement level includes: using The user equipment acquires access control information related to the coverage enhancement level by reading the broadcast system message.
  • the access control information is used to describe the following information (not limited to): an coverage enhancement level that allows the user equipment to access, an upper limit of the coverage enhanced repetition factor or the coverage enhancement mode, an coverage enhancement level that does not allow user equipment access, or Covering the lower limit of the enhanced repetition factor or coverage enhancement mode, the coverage enhancement level or the coverage enhancement repetition factor or coverage enhancement mode that allows user equipment access, the coverage enhancement level or the coverage enhancement repetition factor or coverage enhancement that does not allow user equipment access The scope of the pattern.
  • the access control information includes one or more categories, wherein each category of access control messages sets a dedicated coverage enhancement level.
  • the classification manner of the access control information of the one or more categories includes at least one of the following: classifying according to the service type, and classifying according to the capabilities of the user equipment.
  • the dimension of the service type includes: the real-time nature of the service, and the rate of the service requirement.
  • the real-time granularity of the service includes one of the following: dividing the service according to real-time and non-real-time, and dividing the service according to different levels of delay requirements; or, the granularity of the required rate of the service includes: The service is divided into high-rate services and low-rate services according to the rate, or the services are divided according to different levels of the rate.
  • the service type is classified according to the actual service type, including: voice service, video stream service, wearable device service, and health monitoring service.
  • the dividing dimension of the capability of the user equipment includes: whether to support a rate higher than a preset rate, whether to support a bandwidth greater than a preset bandwidth, whether to support multiple narrowband transmissions, and whether to support coverage enhancement.
  • the user equipment determines, according to the access control information related to the coverage enhancement level, whether the random access condition initiated to the network side is met: the user equipment queries the access control information, and if the current coverage enhancement level of the user meets the allowed access Range of coverage enhancement levels, then determine Initiating a random access condition to the network side; or, in the case that the control information includes one or more categories, the user equipment queries the classification to which the user belongs to determine whether the current coverage enhancement level of the user meets the coverage enhancement level of the allowed access. The range, if satisfied, determines that the random access condition initiated to the network side is met.
  • the user equipment determines, according to the access control information related to the coverage enhancement level, whether the advertisement is consistent to the network before or after the other access control mechanism. Random access conditions on the side. That is, if there are other access control mechanisms that need to be operated, the coverage enhancement level based access control mechanism of this embodiment runs before or after other access control mechanisms.
  • the access control information further includes: a preset ratio that allows the target user equipment that satisfies the access control condition to perform random access, or a preset proportion that the target user equipment that satisfies the access control condition performs random access.
  • the preset ratio is set by using a scale factor of less than one; or, for the user equipments of different access levels AC, respectively, an indication indicating that access is allowed or not allowed is set.
  • the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation.
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk,
  • the optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods of various embodiments of the present invention.
  • an access control device and a system are provided to implement the foregoing embodiments and preferred embodiments, which are not described again.
  • the term "module” may implement a combination of software and/or hardware of a predetermined function. Although described in the following examples The described apparatus is preferably implemented in software, but hardware, or a combination of software and hardware, is also possible and contemplated.
  • the embodiment provides an access control device, which is applied to a network side network element, the device includes: a determining module, configured to determine to implement access control for the coverage enhanced user equipment; and a sending module, configured to send and cover the enhanced level
  • the access control information is set to indicate to the user equipment a random access condition of the network side network element.
  • the access control information is used to describe the following information (not limited to): an coverage enhancement level that allows the user equipment to access, an upper limit of the coverage enhanced repetition factor or the coverage enhancement mode, an coverage enhancement level that does not allow user equipment access, or Covering the lower limit of the enhanced repetition factor or coverage enhancement mode, the coverage enhancement level or the coverage enhancement repetition factor or coverage enhancement mode that allows user equipment access, the coverage enhancement level or the coverage enhancement repetition factor or coverage enhancement that does not allow user equipment access The scope of the pattern.
  • the embodiment provides another access control device, which is applied to the user equipment on the terminal side, and the device includes: an obtaining module, configured to acquire access control information related to the coverage enhancement level; and a determining module, configured to The enhancement level related access control information determines whether the random access condition initiated to the network side is met.
  • the access control information is used to describe the following information (not limited to): an coverage enhancement level that allows the user equipment to access, an upper limit of the coverage enhanced repetition factor or the coverage enhancement mode, an coverage enhancement level that does not allow user equipment access, or Covering the lower limit of the enhanced repetition factor or coverage enhancement mode, the coverage enhancement level or the coverage enhancement repetition factor or coverage enhancement mode that allows user equipment access, the coverage enhancement level or the coverage enhancement repetition factor or coverage enhancement that does not allow user equipment access The scope of the pattern.
  • FIG. 3 is a structural block diagram of an access control system according to an embodiment of the present invention.
  • the system includes: a network side device 30, a user terminal 40 on the terminal side, and a network side device 30 includes: a determining module 302, setting To determine the access control for the coverage enhanced user equipment, the sending module 304 is configured to send the access control information related to the coverage enhancement level, and the access control information is set to indicate to the user equipment the random access condition of the network side network element. ;
  • the user terminal 40 includes: an obtaining module 402, configured to acquire access control information related to the coverage enhancement level; and a determining module 404, configured to determine, according to the access control information related to the coverage enhancement level, whether the random connection initiated to the network side is met Into the conditions.
  • the access control information further includes: a preset ratio that allows the target user equipment that satisfies the access control condition to perform random access, or a preset proportion that the target user equipment that satisfies the access control condition performs random access.
  • the preset ratio is set by using a scale factor of less than one; or, for the user equipments of different access levels AC, respectively, an indication indicating that access is allowed or not allowed is set.
  • the access control information is used to describe the following information (not limited to): an coverage enhancement level that allows the user equipment to access, an upper limit of the coverage enhanced repetition factor or the coverage enhancement mode, an coverage enhancement level that does not allow user equipment access, or Covering the lower limit of the enhanced repetition factor or coverage enhancement mode, the coverage enhancement level or the coverage enhancement repetition factor or coverage enhancement mode that allows user equipment access, the coverage enhancement level or the coverage enhancement repetition factor or coverage enhancement that does not allow user equipment access The scope of the pattern.
  • each of the above modules may be implemented by software or hardware.
  • the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the above modules are in any combination.
  • the forms are located in different processors.
  • this embodiment describes that the eMTC access network classifies the coarse-grained access control of the eMTC user equipment in the coverage enhancement scenario according to the service rate.
  • the eMTC access network and the LTE access network are deployed in a common base station.
  • the LTE access network system has a bandwidth of 10 MHz, and the eMTC access network is deployed in the inband (in-band) manner within the bandwidth of the LTE access network system. It is assumed that the eMTC access network is currently heavily loaded, and there are fewer idle air interface resources. Although a small number of high-rate users can be accepted, but the high-rate users can not use the mode of the larger coverage enhancement level, the eMTC access network determines the high rate. Users with high coverage levels are restricted to access.
  • Step 401 The eNB (base station) broadcasts the following access control information in an eMTC system message (eg, in SIB2 or SIB14):
  • High-rate UE allows access coverage enhancement mode upper limit Coverage enhancement mode A
  • the coverage enhancement mode A refers to a mode with a low coverage enhancement level, and corresponding to the coverage enhancement mode B, which corresponds to a high coverage enhancement level.
  • the coverage enhancement mode A of the PDSCH (Physical Downlink Shared Channel) and the PUSCH (Physical Uplink Shared Channel) corresponds to coverage override factors [1, 2, 4, 8] and the like.
  • the maximum coverage repetition factor can be configured by the base station
  • the coverage enhancement mode B corresponds to coverage override factors [4, 8, 16, 32, 64, 128, 256, 512] and the like (the maximum coverage repetition factor can be configured by the base station);
  • the coverage enhancement mode A of the PRACH corresponds to the coverage enhancement levels 0 and 1; the coverage enhancement mode B corresponds to the coverage enhancement levels 2 and 3, and the coverage repetition factors corresponding to the coverage enhancement levels 0 to 3 are respectively performed by the base station.
  • the M-PDCCH and the PUCCH also have configurations of different coverage enhancement levels in the coverage enhancement mode A and the coverage enhancement mode B, respectively.
  • Step 402 The eMTC UE reads the access control related system message in advance before initiating the random access, and obtains the access control information based on the coverage enhancement level.
  • the eMT UE determines, according to its own measurement result of the cell reference signal, that it initiates the determination of the coverage enhancement level of the UE, and determines that the UE does not need to enable the coverage enhancement according to the measurement result, or only needs to enable the coverage mode A to initiate random access. And determining, according to the obtained coverage enhancement level access control information, that the UE can initiate random access in the current cell; If it is determined according to the measurement result that the UE needs to enable the coverage mode B to initiate the random access, the access control information according to the acquired coverage enhancement level may determine that the UE cannot initiate random access in the current cell.
  • this embodiment describes the fine-grained access control of the eMTC access network in the coverage enhancement scenario for the eMTC user equipment classified by the service rate;
  • the eMTC access network and the LTE access network are deployed in a common base station.
  • the LTE access network system has a bandwidth of 10 MHz, and the eMTC access network is deployed in the inband (in-band) manner within the bandwidth of the LTE access network system. It is assumed that the eMTC access network is currently heavily loaded, and there are fewer idle air interface resources. Although a small number of high-rate users can be accepted, the high-rate users cannot use the mode of the larger coverage enhancement level. Therefore, the eMTC access network determines certain Users with high-rate service types and high coverage enhancements can restrict access. This restriction can be of different granularity.
  • FIG. 5 is a flow chart of a specific embodiment of the present invention, and the flow is as follows:
  • Step 501 The eNB (base station) detects that the eMTC cell load is high, and the load of the LTE system is also high, and the eMTC cannot be scheduled to use more idle resources.
  • the eNB decides to limit the high-rate service users of the eMTC to use the large coverage enhancement level. To reduce the pressure on air resources.
  • the eNB broadcasts access control information for the terminal using coverage enhancement in an eMTC system message (eg, in SIB2 or SIB 14), the content of the control information including 2 parts: a restricted user object, and a restricted corresponding to the restricted object Coverage enhancement level;
  • Restricted user objects include:
  • Any type of UE ie, no UE type or service type
  • real-time service low-latency service or ultra-low-latency service
  • common service delay-insensitive service (or delay-tolerant service)
  • delay-insensitive service or delay-tolerant service
  • the required rate is divided into: high-speed service and normal rate.
  • voice services Targeted according to specific types of services, including: voice services, video streaming services, game services, smart wear, health monitoring, etc.;
  • UE capabilities including: whether to support higher than preset rate, whether to support bandwidth greater than the preset bandwidth, whether to support multiple narrowband transmission, whether to support coverage enhancement
  • the limited coverage enhancement level corresponding to the restricted object is the limited coverage enhancement level corresponding to the restricted object.
  • Coverage enhancement levels can be divided into different granularities, for example:
  • the restricted form of the control information includes: an coverage enhancement level or an upper limit of the coverage enhancement mode that allows the user equipment to access, or an coverage enhancement level or a lower limit of the coverage enhancement mode that does not allow the user equipment to access, or allow/disallow the user equipment to access.
  • Coverage enhancement level or coverage enhancement mode range
  • Control information is defined as:
  • control information is: if any type of UE needs to use the coverage enhancement technology to access the network, it is not allowed to access;
  • control information is defined as:
  • control information is that the UE that initiates the voice service allows it to access in the manner of coverage enhancement mode A or no coverage enhancement; the UE that initiates the video stream service allows it to access using the method of no coverage enhancement;
  • control information is defined as:
  • this control information is that the UE that initiates the high-rate service allows it to access using the method of no coverage enhancement; the UE that initiates the normal rate service allows it to use the method of [no coverage enhancement, coverage enhancement level 0, coverage enhancement level 1]. Access; a UE that initiates a low-rate service allows it to access using [no coverage enhancement, coverage enhancement level 0, coverage enhancement level 1, coverage enhancement level 2, coverage enhancement level 3].
  • the limitation of the controlled target user equipment may be in a proportional manner, that is, the target user equipment that meets the access control condition of the preset proportion is allowed to perform random access, Or not allowing a predetermined proportion of the target user equipment that satisfies the access control condition to perform random access;
  • the setting form of the ratio includes: setting a scale factor smaller than 1; or setting an instruction of allowing/disallowing access of 1 bit for different access levels (AC);
  • Control information is defined as:
  • the terminal determines whether it can initiate random access. If it is less than 0.1, it is allowed to access, and vice versa.
  • control information is that the UE that initiates the high-rate service can only access by using the repetition factor [1], and only 10% can initiate random access; the UE that initiates the normal rate service can only use the repetition factor [2 ⁇ 8], and only 30% can initiate random access; UEs that initiate low-rate services can only use repetition factor [16 ⁇ 32], and only 50% can initiate random access.
  • Control information is defined as:
  • the meaning of the control information is that the UE that initiates the high-rate service can only access by using the repetition factor [1], and only the UEs belonging to AC0 can initiate random access; the UE that initiates the normal rate service can only use the repetition factor [ 2 to 8], and only UEs belonging to AC0 ⁇ 2 can initiate random access; UEs that initiate low-rate services can only use repetition factors [16-32], and only UEs belonging to AC0 ⁇ 4 can initiate random access.
  • the last column of the control information is a 10-bit field, which is used to identify which AC UEs of the access level AC0-9 can access.
  • Step 502. The eMT UE reads the access control related system message in advance, and obtains the corresponding coverage enhancement level based access control information according to the UE type or the service type to which the UE belongs.
  • Step 503. The eMT UE determines its own coverage enhancement level according to the measurement result of the cell reference signal, and determines whether it can initiate random access according to the obtained access control information based on the coverage enhancement level.
  • Step 504 (optional). If the EMT UE obtains the EAB (Extended Access Control) control information from the system message, and the EAB belongs to the existing control mechanism, the UE also needs to perform the EAB access control process. That is to say, the present invention and the existing access control technologies described in steps 201 to 203 are in a side-by-side relationship. When the base station simultaneously broadcasts the access control information of the solution of the present invention and the existing access control technology, Then, the UE needs to execute the two technologies at the same time, and the foregoing solution of the present invention described in steps 201 to 203 may be performed first, or the existing access control technology may be executed first.
  • EAB Extended Access Control
  • this embodiment describes the fine-grained access control of the eMTC user equipment in the coverage enhancement scenario for the eMTC user equipment classified by real-time service.
  • the NBIOT system uses a system bandwidth of 180 kHz, which is smaller than the 1.4 Mhz of the eMTC system. Therefore, if the terminal uses coverage enhancement technology, it consumes more NBIOT system air interface resources.
  • the NBIOT access network and the LTE access network are deployed together, and the LTE access network system has a bandwidth of 10 MHz.
  • the NBIOT access network is deployed in the inband (in-band) manner within the bandwidth of the LTE access network system.
  • the NBIOT access network is currently heavily loaded, and there are fewer idle air interface resources. Although it can accommodate a small number of high-rate users, it cannot afford the high-rate users to use the larger coverage enhancement level mode. Therefore, the NBIOT access network decides to certain Users with high-rate service types and high coverage enhancements can restrict access. This restriction can be of different granularity.
  • the method adopted is consistent with the method of the eMTC system, and the schemes of Embodiment 1 and Embodiment 2 can be used in the NBIOT system.
  • the access control information based on the coverage enhancement level may be sent to the NBIOT terminal in a system message of the NBIOT system (eg, at SIB2 or SIB14).
  • the specific process can refer to the specific embodiment 1 and the specific embodiment 2.
  • the type of the access network element includes, in addition to the eNB, a small cell, a home base station, and other access network element types compatible with the EPC architecture.
  • Embodiments of the present invention also provide a storage medium.
  • the foregoing storage medium may be configured to store program code for performing the following steps:
  • the access control information related to the coverage enhancement level is sent, where the access control information is used to indicate, to the user equipment, a random access condition of the network side network element.
  • the foregoing storage medium may include, but not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, and a magnetic memory.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • a mobile hard disk e.g., a hard disk
  • magnetic memory e.g., a hard disk
  • the processor performs, according to the stored program code stored in the storage medium, determining to implement access control for the coverage enhanced user equipment;
  • the processor performs to send, according to the stored program code in the storage medium, access control information related to an coverage enhancement level, where the access control information is used to indicate the user equipment to the Random access conditions of network side network elements.
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. Perform the steps shown or described, or separate them into individual integrated circuit modules, or multiple of them Blocks or steps are made in a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

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Abstract

本发明实施例提供了一种接入控制方法及装置、系统，其中，该方法包括：网络侧网元确定针对覆盖增强的用户设备实施接入控制；所述网络侧网元发送与覆盖增强级别相关的接入控制信息，所述接入控制信息用于向所述用户设备指示所述网络侧网元的随机接入条件。通过本发明实施例，解决了相关技术中用户面资源低效使用容易导致系统负荷过大的问题。

Description

接入控制方法及装置、系统 技术领域
本发明实施例涉及通信领域，具体而言，涉及一种接入控制方法及装置、系统。
背景技术
相关技术的长期演进(Long-Term Evolution，简称为LTE)系统为了支持机器类型通讯终端(例如传感器，智能家居，智能电网监控等)，引入了窄带空中接口技术eMTC(enhance machine type communication，增强机器类型通讯)和NBIoT(NarrowBand Internet of Things，窄带物联网)，其中eMTC系统带宽采用1.4MHz，NBIOT系统带宽采用180kHz，这2种系统专门用于承载以小流量、不频繁、时延容忍度很高的业务数据为主的机器类型通讯，避免海量的机器类型终端的小数据影响宽带LTE系统的频谱效率，同时增加单位带宽承载的用户容量。
LTE基站可以以共站的模式同时部署多个窄带eMTC或者NBIOT频点，以inband(系统带宽内)的模式为eMTC或NBIOT系统划分频谱资源。
申请人发现，随着机器类型业务的增多，实时语音和视频的业务也开始在MTC终端出现，因此eMTC和NBIOT系统也可以支持实时类业务，而这类业务的特点是数据包到达频繁、时延敏感、数据流量大。窄带eMTC或者NBIOT由于先天资源限制，而且引入了覆盖增强技术，其对于大流量数据的负荷能力并不能和LTE系统相比，因此如果支持实时类业务的终端的数量增大，很容易导致窄带系统的过载。
针对相关技术中存在的上述问题，目前尚未发现有效的解决方案。
发明内容
本发明实施例提供了一种接入控制方法及装置、系统，以至少解决相 关技术中用户面资源低效使用容易导致系统负荷过大的问题。
根据本发明的一个实施例，提供了一种接入控制方法，包括：网络侧网元确定针对覆盖增强的用户设备实施接入控制；所述网络侧网元发送与覆盖增强级别相关的接入控制信息，所述接入控制信息用于向所述用户设备指示所述网络侧网元的随机接入条件。
根据本发明的一个实施例，提供了另一种接入控制方法，包括：用户设备获取与覆盖增强级别相关的接入控制信息；所述用户设备根据所述与覆盖增强级别相关的接入控制信息判断是否符合发起到所述网络侧的随机接入条件。
根据本发明的另一个实施例，提供了一种接入控制装置，应用在网络侧网元，包括：确定模块，设置为确定针对覆盖增强的用户设备实施接入控制；发送模块，设置为发送与覆盖增强级别相关的接入控制信息，所述接入控制信息用于向所述用户设备指示所述网络侧网元的随机接入条件。
根据本发明的另一个实施例，提供了一种接入控制装置，应用在终端侧的用户设备，包括：获取模块，设置为获取与覆盖增强级别相关的接入控制信息；判断模块，设置为根据所述与覆盖增强级别相关的接入控制信息判断是否符合发起到所述网络侧的随机接入条件。
根据本发明的另一个实施例，提供了一种接入控制系统，包括：网络侧设备、终端侧的用户终端，所述网络侧设备包括：确定模块，设置为确定针对覆盖增强的用户设备实施接入控制；发送模块，设置为发送与覆盖增强级别相关的接入控制信息，所述接入控制信息用于向所述用户设备指示所述网络侧网元的随机接入条件；
根据本发明的又一个实施例，还提供了一种存储介质。该存储介质设置为存储用于执行以下步骤的程序代码：
确定针对覆盖增强的用户设备实施接入控制；
发送与覆盖增强级别相关的接入控制信息，所述接入控制信息用于向所述用户设备指示所述网络侧网元的随机接入条件。
通过本发明，网络侧网元确定针对覆盖增强的用户设备实施接入控制；所述网络侧网元发送与覆盖增强级别相关的接入控制信息，所述接入控制信息用于向所述用户设备指示所述网络侧网元的随机接入条件。由于发送与覆盖增强级别相关的接入控制信息，接收侧的终端可以基于接入控制信息来判断终端能力和传输业务是否符合接入条件，解决了相关技术中用户面资源低效使用容易导致系统负荷过大的问题，在控制系统负荷的同时保证了资源的利用率。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1是根据本发明实施例的一种接入控制方法的流程图；
图2是根据本发明实施例的另一种接入控制方法的流程图；
图3是根据本发明实施例的接入控制系统的结构框图；
图4是本发明具体本实施例1的方案流程图；
图5是本发明具体本实施例2的方案流程图。
具体实施方式
下文中将参考附图并结合实施例来详细说明本发明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
需要说明的是，本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。
实施例1
在本实施例中提供了一种接入控制方法，图1是根据本发明实施例的一种接入控制方法的流程图，如图1所示，该流程包括如下步骤：
步骤S102：网络侧网元确定针对覆盖增强的用户设备实施接入控制；
步骤S104：网络侧网元发送与覆盖增强级别相关的接入控制信息，接入控制信息用于向用户设备指示网络侧网元的随机接入条件。
通过上述步骤，网络侧网元确定针对覆盖增强的用户设备实施接入控制；网络侧网元发送与覆盖增强级别相关的接入控制信息，接入控制信息用于向用户设备指示网络侧网元的随机接入条件。由于发送与覆盖增强级别相关的接入控制信息，接收侧的终端可以基于接入控制信息来判断终端能力和传输业务是否符合接入条件，解决了相关技术中用户面资源低效使用容易导致系统负荷过大的问题，在控制系统负荷的同时保证了资源的利用率。
可选地，上述步骤的执行主体网络侧网元可以为接入网或核心网网元，如基站等，可以通过基站的处理器和射频电路来实现，但不限于此。
可选的，网络侧网元发送与覆盖增强级别相关的接入控制信息包括：网络侧网元通过系统消息广播发送接入控制信息。
可选的，接入控制信息包括但不限于为：允许用户设备接入的覆盖增强级别或覆盖增强重复因子或覆盖增强模式的上限、不允许用户设备接入的覆盖增强级别或覆盖增强重复因子或覆盖增强模式的下限、允许用户设备接入的覆盖增强级别或覆盖增强重复因子或覆盖增强模式的范围、不允许用户设备接入的覆盖增强级别或覆盖增强重复因子或覆盖增强模式的范围。
可选的，接入控制信息包括一个或多个类别，其中，每一个类别的接入控制消息设置专用的覆盖增强级别。
可选的，一个或多个类别的接入控制信息的分类方式包括以下至少之 一：按业务类型进行分类、按用户设备的能力进行分类。
可选的，业务类型的划分维度包括：业务的实时性、业务要求的速率高低。
可选的，业务的实时性的划分粒度包括以下之一：将业务按照实时和非实时来划分、将业务按照时延要求的不同级别来划分；或，业务要求的速率高低的划分粒度包括：将业务按照速率划分为高速率业务和低速率业务、或者将业务按照速率大小的不同级别来划分。
可选的，业务类型按照实际业务类型来划分，包括：语音业务、视频流业务、可穿戴设备业务、健康监护业务。
可选的，用户设备的能力的划分维度包括：是否支持高于预设速率的速率、是否支持大于预设带宽的带宽、是否支持多窄带传输、是否支持覆盖增强。
所述接入控制信息还包括：允许满足接入控制条件的目标用户设备进行随机接入的预设比例，或者，不允许满足接入控制条件的目标用户设备进行随机接入的预设比例。
可选地，采用小于1的比例因子设置所述预设比例；或，对不同接入级别AC的用户设备分别设置1bit的用于指示允许接入或不允许接入的指示。
在本实施例中提供了另一种接入控制方法，图2是根据本发明实施例的另一种接入控制方法的流程图，如图2所示，该流程包括如下步骤：
步骤S202：用户设备获取与覆盖增强级别相关的接入控制信息；
步骤S204：用户设备根据与覆盖增强级别相关的接入控制信息判断是否符合发起到网络侧的随机接入条件。
可选地，上述步骤的执行主体可以为终端，如手机等，可以通过终端的处理器和射频电路来实现，但不限于此。
可选的，用户设备获取与覆盖增强级别相关的接入控制信息包括：用 户设备通过读取广播的系统消息获取与覆盖增强级别相关的接入控制信息。
可选的，接入控制信息用于描述以下信息(不限于)：允许用户设备接入的覆盖增强级别或覆盖增强重复因子或覆盖增强模式的上限、不允许用户设备接入的覆盖增强级别或覆盖增强重复因子或覆盖增强模式的下限、允许用户设备接入的覆盖增强级别或覆盖增强重复因子或覆盖增强模式的范围、不允许用户设备接入的覆盖增强级别或覆盖增强重复因子或覆盖增强模式的范围。
可选的，接入控制信息包括一个或多个类别，其中，每一个类别的接入控制消息设置专用的覆盖增强级别。
可选的，一个或多个类别的接入控制信息的分类方式包括以下至少之一：按业务类型进行分类、按用户设备的能力进行分类。
可选的，业务类型的划分维度包括：业务的实时性、业务要求的速率高低。
可选的，业务的实时性的划分粒度包括以下之一：将业务按照实时和非实时来划分、将业务按照时延要求的不同级别来划分；或，业务要求的速率高低的划分粒度包括：将业务按照速率划分为高速率业务和低速率业务、或者将业务按照速率大小的不同级别来划分。
可选的，业务类型按照实际业务类型来划分，包括：语音业务、视频流业务、可穿戴设备业务、健康监护业务。
可选的，用户设备的能力的划分维度包括：是否支持高于预设速率的速率、是否支持大于预设带宽的带宽、是否支持多窄带传输、是否支持覆盖增强。
可选的，用户设备根据与覆盖增强级别相关的接入控制信息判断是否符合发起到网络侧的随机接入条件包括：用户设备查询接入控制信息，若自身当前的覆盖增强等级满足允许接入的覆盖增强等级的范围，则确定符 合发起到网络侧的随机接入条件；或，在控制信息包括一个或多个类别的情况下，用户设备查询自身所属的分类确定自身当前的覆盖增强等级是否满足允许接入的覆盖增强等级的范围，若满足则确定符合发起到网络侧的随机接入条件。
可选的，在存在与覆盖增强级别不相关的其他接入控制机制的情况下，用户设备在其他接入控制机制之前或者之后根据与覆盖增强级别相关的接入控制信息判断是否符合发起到网络侧的随机接入条件。也即，如果有其他接入控制机制需要运行，本实施例的的基于覆盖增强级别的接入控制机制在其他接入控制机制之前或者之后运行。
所述接入控制信息还包括：允许满足接入控制条件的目标用户设备进行随机接入的预设比例，或者，不允许满足接入控制条件的目标用户设备进行随机接入的预设比例。
可选地，采用小于1的比例因子设置所述预设比例；或，对不同接入级别AC的用户设备分别设置1bit的用于指示允许接入或不允许接入的指示。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到根据上述实施例的方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端设备(可以是手机，计算机，服务器，或者网络设备等)执行本发明各个实施例的方法。
实施例2
在本实施例中还提供了一种接入控制装置、系统，用于实现上述实施例及优选实施方式，已经进行过说明的不再赘述。如以下所使用的，术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描 述的装置较佳地以软件来实现，但是硬件，或者软件和硬件的组合的实现也是可能并被构想的。
本实施例提供了一种接入控制装置，应用在网络侧网元，该装置包括：确定模块，设置为确定针对覆盖增强的用户设备实施接入控制；发送模块，设置为发送与覆盖增强级别相关的接入控制信息，接入控制信息设置为向用户设备指示网络侧网元的随机接入条件。
可选的，接入控制信息用于描述以下信息(不限于)：允许用户设备接入的覆盖增强级别或覆盖增强重复因子或覆盖增强模式的上限、不允许用户设备接入的覆盖增强级别或覆盖增强重复因子或覆盖增强模式的下限、允许用户设备接入的覆盖增强级别或覆盖增强重复因子或覆盖增强模式的范围、不允许用户设备接入的覆盖增强级别或覆盖增强重复因子或覆盖增强模式的范围。
本实施例提供了另一种接入控制装置，应用在终端侧的用户设备，该装置包括：获取模块，设置为获取与覆盖增强级别相关的接入控制信息；判断模块，设置为根据与覆盖增强级别相关的接入控制信息判断是否符合发起到网络侧的随机接入条件。
可选的，接入控制信息用于描述以下信息(不限于)：允许用户设备接入的覆盖增强级别或覆盖增强重复因子或覆盖增强模式的上限、不允许用户设备接入的覆盖增强级别或覆盖增强重复因子或覆盖增强模式的下限、允许用户设备接入的覆盖增强级别或覆盖增强重复因子或覆盖增强模式的范围、不允许用户设备接入的覆盖增强级别或覆盖增强重复因子或覆盖增强模式的范围。
图3是根据本发明实施例的接入控制系统的结构框图，如图3所示，该系统包括：网络侧设备30、终端侧的用户终端40，网络侧设备30包括：确定模块302，设置为确定针对覆盖增强的用户设备实施接入控制；发送模块304，设置为发送与覆盖增强级别相关的接入控制信息，接入控制信息设置为向用户设备指示网络侧网元的随机接入条件；
用户终端40包括：获取模块402，设置为获取与覆盖增强级别相关的接入控制信息；判断模块404，设置为根据与覆盖增强级别相关的接入控制信息判断是否符合发起到网络侧的随机接入条件。
所述接入控制信息还包括：允许满足接入控制条件的目标用户设备进行随机接入的预设比例，或者，不允许满足接入控制条件的目标用户设备进行随机接入的预设比例。
可选地，采用小于1的比例因子设置所述预设比例；或，对不同接入级别AC的用户设备分别设置1bit的用于指示允许接入或不允许接入的指示。
可选的，接入控制信息用于描述以下信息(不限于)：允许用户设备接入的覆盖增强级别或覆盖增强重复因子或覆盖增强模式的上限、不允许用户设备接入的覆盖增强级别或覆盖增强重复因子或覆盖增强模式的下限、允许用户设备接入的覆盖增强级别或覆盖增强重复因子或覆盖增强模式的范围、不允许用户设备接入的覆盖增强级别或覆盖增强重复因子或覆盖增强模式的范围。
需要说明的是，上述各个模块是可以通过软件或硬件来实现的，对于后者，可以通过以下方式实现，但不限于此：上述模块均位于同一处理器中；或者，上述各个模块以任意组合的形式分别位于不同的处理器中。
实施例3
本实施例是根据本发明的可选实施例，用于结合不同的场景对本申请进行详细说明，本实施例包括多个具体实施例：
具体实施例1：
以LTE eMTC系统为例，本实施例描述eMTC接入网针对按业务速率分类eMTC用户设备在覆盖增强场景下的粗粒度的接入控制；
图4是本发明具体本实施例1的方案流程图，详细说明见下：
实施例前置条件如下：
eMTC接入网与LTE接入网共基站部署，LTE接入网系统带宽为10MHz，eMTC接入网采用inband(频段内)方式部署在LTE接入网系统带宽内。假设eMTC接入网目前已经高负荷，空闲的空口资源较少，虽然还能接纳少量高速率用户，但无法负担高速率用户使用较大覆盖增强级别的模式，因此eMTC接入网决定对高速率且覆盖增强级别高的用户进行限制接入。
步骤401.eNB(基站)在eMTC系统消息(例如在SIB2或者SIB14)中广播如下接入控制信息：
高速率UE允许接入的覆盖增强模式上限 覆盖增强模式A
其中，覆盖增强模式A是指覆盖增强级别低的模式，与之对应的，覆盖增强模式B，其对应高覆盖增强级别。
例如：在现有eMTC系统中，PDSCH(物理下行共享信道)和PUSCH(物理上行共享信道)的覆盖增强模式A对应了覆盖重复因子[1,2,4,8]等这几个覆盖增强级别(最大覆盖重复因子可以由基站配置)，覆盖增强模式B对应了覆盖重复因子[4,8,16,32,64,128,256,512]等这几个覆盖增强级别(最大覆盖重复因子可以由基站配置)；
PRACH(物理随机接入信道)的覆盖增强模式A对应了覆盖增强级别0和1；覆盖增强模式B对应了覆盖增强级别2和3,覆盖增强级别0～3分别对应的覆盖重复因子由基站在[1,2,4,8,16,32,64,128]中选择配置；
M-PDCCH和PUCCH也分别有覆盖增强模式A和覆盖增强模式B下的不同覆盖增强级别的配置。
步骤402.eMTC UE在发起随机接入之前，提前读取接入控制相关的系统消息，获取基于覆盖增强级别的接入控制信息；
步骤403.eMTC UE根据自己对小区参考信号的测量结果，确定自己发起判断自己当的覆盖增强级别，若根据测量结果确定UE无需使能覆盖增强，或者只需要启用覆盖模式A来发起随机接入，那么根据获取的覆盖增强级别的接入控制信息可以判断：UE可以在当前小区发起随机接入； 若根据测量结果确定UE需要启用覆盖模式B来发起随机接入，那么根据获取的覆盖增强级别的接入控制信息可以判断：UE不能在当前小区发起随机接入。
具体实施例2：
以LTE eMTC系统为例，本实施例描述eMTC接入网针对按业务速率分类的eMTC用户设备在覆盖增强场景下的细粒度的接入控制；
参考具体实施例1的场景，
实施例前置条件如下：
eMTC接入网与LTE接入网共基站部署，LTE接入网系统带宽为10MHz，eMTC接入网采用inband(频段内)方式部署在LTE接入网系统带宽内。假设eMTC接入网目前已经高负荷，空闲的空口资源较少，虽然还能接纳少量高速率用户，但无法负担高速率用户使用较大覆盖增强级别的模式，因此eMTC接入网决定对某些高速率业务类型且覆盖增强级别高的用户进行限制接入，这种限制方式可以是不同粒度的。
图5是本发明具体本实施例2的方案流程图，流程如下：
步骤501.eNB(基站)检测到eMTC小区负荷较高，且LTE系统的负荷也较高，无法给eMTC调度更多空闲资源使用，eNB决定要限制eMTC的高速率业务用户使用大覆盖增强级别，以减少空口资源的压力。eNB在eMTC系统消息(例如在SIB2或者SIB14)中广播针对使用覆盖增强的终端的接入控制信息，控制信息的内容包含2部分：受限的用户对象，以及所述受限对象对应的受限的覆盖增强级别；
受限用户对象包括：
任意类型的UE(即不限UE类型或者业务类型)
按照业务类型划分，例如：按照业务的实时性划分为：实时业务(低时延业务或超低时延业务)，普通业务，时延不敏感业务(或时延容忍业务)；又例如按照业务要求的速率的高低划分为：高速率业务、普通速率 业务、低速率业务；上述划分也可以分成更细的级别粒度，例如可以按时延需求或速率的大小数值划分成更多的级别；
按照特定类型业务做针对性的划分，包括：语音业务、视频流业务、游戏业务、智能穿戴、健康监护等；
-按照UE能力来划分，包括：是否支持高于预设速率的速率、是否支持大于预设带宽的带宽、是否支持多窄带传输、是否支持覆盖增强
所述受限对象对应的受限的覆盖增强级别：
覆盖增强级别可以按照不同粒度划分，例如：
划分为：无覆盖增强、使用覆盖增强；或者
划分为：无覆盖增强、覆盖增强模式A、覆盖增强模式B；或者
划分为：无覆盖增强、覆盖增强级别0、覆盖增强级别1、覆盖增强级别2、覆盖增强级别3；(在eMTC系统中，随机接入信道采用的覆盖增强级别0/1属于覆盖增强模式A；覆盖增强级别2/3属于覆盖增强模式B)，或者
划分为：无覆盖增强、覆盖增强重复因子{1，2,4,8,15,32,64,128...}
控制信息的限制形式包括：允许用户设备接入的覆盖增强级别或覆盖增强模式的上限、或者不允许用户设备接入的覆盖增强级别或覆盖增强模式的下限、或者允许/不允许用户设备接入的覆盖增强级别或覆盖增强模式的范围；
例如：控制信息定义为：
UE允许接入的覆盖增强级别上限 无覆盖增强
这个控制信息的含义是：若任何类型的UE需使用覆盖增强技术来接入网络，则不允许其接入；
又例如：控制信息定义为：
Figure PCTCN2017096181-appb-000001
这个控制信息的含义是：发起语音业务的UE允许其使用覆盖增强模式A或者无覆盖增强的方式接入；发起视频流业务的UE允许其使用无覆盖增强的方式接入；
又例如：控制信息定义为：
Figure PCTCN2017096181-appb-000002
这个控制信息的含义是：发起高速率业务的UE允许其使用无覆盖增强的方式接入；发起普通速率业务的UE允许其使用[无覆盖增强，覆盖增强级别0，覆盖增强级别1]的方式接入；发起低速率业务的UE允许其使用[无覆盖增强，覆盖增强级别0，覆盖增强级别1，覆盖增强级别2，覆盖增强级别3]的方式接入。
可选的，为了实现更有灵活性的接入控制，对受控的目标用户设备的限制可以采用比例的形式，即允许预设比例的满足接入控制条件的目标用户设备进行随机接入，或者不允许预设比例的满足接入控制条件的目标用户设备进行随机接入；
所述比例的设置形式包括：设置小于1的比例因子；或者对不同接入级别(Access Class，简称AC)分别设置1bit的允许/不允许接入的指示；
例如：
控制信息定义为：
Figure PCTCN2017096181-appb-000003
符合前两列的条件(高速率，使用重复因子[1])，终端来确定自身是否能发起随机接入，如果小于0.1，则被允许接入，反之，则不允许。
这个控制信息的含义是：发起高速率业务的UE只能使用重复因子[1]的方式接入，且只有10％能发起随机接入；发起普通速率业务的UE只能使用重复因子[2～8]，且只有30％能发起随机接入；发起低速率业务的UE只能使用重复因子[16～32]，且只有50％能发起随机接入。
又例如：
控制信息定义为：
Figure PCTCN2017096181-appb-000004
这个控制信息的含义是：发起高速率业务的UE只能使用重复因子[1]的方式接入，且只有属于AC0的UE能发起随机接入；发起普通速率业务的UE只能使用重复因子[2～8]，且只有属于AC0～2的UE能发起随机接入；发起低速率业务的UE只能使用重复因子[16～32]，且只有属于AC0～4的UE能发起随机接入。控制信息的最后一列为10bit的字段，用于标识接入等级AC0～9的UE中，哪个AC的UE可以接入。
步骤502.eMTC UE在发起随机接入之前，提前读取接入控制相关的系统消息，根据自己所属的UE类型或者业务类型来获取对应的基于覆盖增强级别的接入控制信息；
步骤503.eMTC UE根据自己对小区参考信号的测量结果，确定自己的覆盖增强级别，并根据获取的基于覆盖增强级别的接入控制信息判断自己能否发起随机接入；
步骤504(可选).eMTC UE如果从系统消息中还获取了EAB(扩展接入控制)控制信息，EAB属于现有的控制机制的一种，则UE还需要执行EAB的接入控制流程,也即是说，步骤201～203所述的本发明方案和现有接入控制技术之间是并列的关系，当基站同时广播了本发明方案和现有接入控制技术的接入控制信息，则UE需要同时执行二者，可以先执行步骤201～203所述的本发明方案，也可以先执行现有接入控制技术。
具体实施例3：
以LTE eMTC系统为例，本实施例描述eMTC接入网针对按业务的实时性分类的eMTC用户设备在覆盖增强场景下的细粒度的接入控制；
NBIOT系统使用的系统带宽为180kHz，比eMTC系统的1.4Mhz还要小，因此若终端使用覆盖增强技术，其占用的NBIOT系统空口资源比率更加多。
假设NBIOT接入网与LTE接入网共基站部署，LTE接入网系统带宽为10MHz，NBIOT接入网采用inband(频段内)方式部署在LTE接入网系统带宽内。假设NBIOT接入网目前已经高负荷，空闲的空口资源较少，虽然还能接纳少量高速率用户，但无法负担高速率用户使用较大覆盖增强级别的模式，因此NBIOT接入网决定对某些高速率业务类型且覆盖增强级别高的用户进行限制接入，这种限制方式可以是不同粒度的。
其采用的方法与eMTC系统的方法一致，实施例1和实施例2的方案可以沿用在NBIOT系统中。基于覆盖增强级别的接入控制信息可以在NBIOT系统的系统消息(例如在SIB2或者SIB14)发送给NBIOT终端。
其具体流程可以参考具体实施例1和具体实施例2。
在以上所有实施例中，接入网网元的类型除了eNB之外，也包括small cell，家庭基站，以及兼容EPC架构的其他接入网网元类型。
实施例4
本发明的实施例还提供了一种存储介质。可选地，在本实施例中，上述存储介质可以被设置为存储用于执行以下步骤的程序代码：
S1，确定针对覆盖增强的用户设备实施接入控制；
S2，发送与覆盖增强级别相关的接入控制信息，所述接入控制信息用于向所述用户设备指示所述网络侧网元的随机接入条件。
可选地，在本实施例中，上述存储介质可以包括但不限于：U盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行确定针对覆盖增强的用户设备实施接入控制；
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行发送与覆盖增强级别相关的接入控制信息，所述接入控制信息用于向所述用户设备指示所述网络侧网元的随机接入条件。
可选地，本实施例中的具体示例可以参考上述实施例及可选实施方式中所描述的示例，本实施例在此不再赘述。
显然，本领域的技术人员应该明白，上述的本发明的各模块或各步骤可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，可选地，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，并且在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤，或者将它们分别制作成各个集成电路模块，或者将它们中的多个模 块或步骤制作成单个集成电路模块来实现。这样，本发明不限制于任何特定的硬件和软件结合。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (30)

  1. 一种接入控制方法，包括：
    网络侧网元确定针对覆盖增强的用户设备实施接入控制；
    所述网络侧网元发送与覆盖增强级别相关的接入控制信息，所述接入控制信息用于向所述用户设备指示所述网络侧网元的随机接入条件。
  2. 根据权利要求1所述的方法，其中，网络侧网元发送与覆盖增强级别相关的接入控制信息包括：
    网络侧网元通过系统消息广播发送所述接入控制信息。
  3. 根据权利要求1所述的方法，其中，所述接入控制信息包括以下至少之一：
    允许用户设备接入的覆盖增强级别或覆盖增强重复因子或覆盖增强模式的上限、不允许用户设备接入的覆盖增强级别或覆盖增强重复因子或覆盖增强模式的下限、允许用户设备接入的覆盖增强级别或覆盖增强重复因子或覆盖增强模式的范围、不允许用户设备接入的覆盖增强级别或覆盖增强重复因子或覆盖增强模式的范围。
  4. 根据权利要求1或3所述的方法，其中，所述接入控制信息包括一个或多个类别，其中，每一个类别的接入控制消息设置专用的覆盖增强级别。
  5. 根据权利要求4所述的方法，其中，所述一个或多个类别的所述接入控制信息的分类方式包括以下至少之一：按业务类型进行分类、按用户设备的能力进行分类。
  6. 根据权利要求5所述的方法，其中，所述业务类型的划分维度包括：业务的实时性、业务要求的速率高低。
  7. 根据权利要求6所述的方法，其中，
    所述业务的实时性的划分粒度包括以下之一：将业务按照实时和非实时来划分、将业务按照时延要求的不同级别来划分；或，
    所述业务要求的速率高低的划分粒度包括：将业务按照速率划分为高速率业务和低速率业务、或者将业务按照速率大小的不同级别来划分。
  8. 根据权利要求5所述的方法，其中，所述业务类型按照实际业务类型来划分，包括：语音业务、视频流业务、可穿戴设备业务、健康监护业务。
  9. 根据权利要求5所述的方法，其中，所述用户设备的能力的划分维度包括：是否支持高于预设速率的速率、是否支持大于预设带宽的带宽、是否支持多窄带传输、是否支持覆盖增强。
  10. 根据权利要求1或3所述的方法，其中，所述接入控制信息还包括：允许满足接入控制条件的目标用户设备进行随机接入的预设比例，或者，不允许满足接入控制条件的目标用户设备进行随机接入的预设比例。
  11. 根据权利要求10所述的方法，其中，采用小于1的比例因子设置所述预设比例；或，对不同接入级别的用户设备分别设置1bit的用于指示允许接入或不允许接入的指示。
  12. 一种接入控制方法，包括：
    用户设备获取与覆盖增强级别相关的接入控制信息；
    所述用户设备根据所述与覆盖增强级别相关的接入控制信息判断是否符合发起到网络侧的随机接入条件。
  13. 根据权利要求12所述的方法，其中，用户设备获取与覆盖增强级别相关的接入控制信息包括：
    用户设备通过读取广播的系统消息获取所述与覆盖增强级别相关的接入控制信息。
  14. 根据权利要求12所述的方法，其中，所述接入控制信息用于描述以下信息至少之一：
    允许用户设备接入的覆盖增强级别或覆盖增强重复因子或覆盖增强模式的上限、不允许用户设备接入的覆盖增强级别或覆盖增强重复因子或覆盖增强模式的下限、允许用户设备接入的覆盖增强级别或覆盖增强重复因子或覆盖增强模式的范围、不允许用户设备接入的覆盖增强级别或覆盖增强重复因子或覆盖增强模式的范围。
  15. 根据权利要求12所述的方法，其中，所述接入控制信息包括一个或多个类别，其中，每一个类别的接入控制消息设置专用的覆盖增强级别。
  16. 根据权利要求15所述的方法，其中，所述一个或多个类别的所述接入控制信息的分类方式包括以下至少之一：按业务类型进行分类、按用户设备的能力进行分类。
  17. 根据权利要求16所述的方法，其中，所述业务类型的划分维度包括：业务的实时性、业务要求的速率高低。
  18. 根据权利要求17所述的方法，其中，
    所述业务的实时性的划分粒度包括以下之一：将业务按照实时和非实时来划分、将业务按照时延要求的不同级别来划分；或，
    所述业务要求的速率高低的划分粒度包括：将业务按照速率划分为高速率业务和低速率业务、或者将业务按照速率大小的不同级别来划分。
  19. 根据权利要求16所述的方法，其中，所述业务类型按照实际业务类型来划分，包括：语音业务、视频流业务、可穿戴设备业务、健康监护业务。
  20. 根据权利要求16所述的方法，其中，所述用户设备的能力的划分维度包括：是否支持高于预设速率的速率、是否支持大于预设 带宽的带宽、是否支持多窄带传输、是否支持覆盖增强。
  21. 根据权利要求12、14、16任一项所述的方法，其中，所述用户设备根据所述与覆盖增强级别相关的接入控制信息判断是否符合发起到所述网络侧的随机接入条件包括：
    用户设备查询所述接入控制信息，若自身当前的覆盖增强等级满足允许接入的覆盖增强等级的范围，则确定符合发起到网络侧的随机接入条件；或，
    在所述控制信息包括一个或多个类别的情况下，用户设备查询自身所属的分类确定自身当前的覆盖增强等级是否满足允许接入的覆盖增强等级的范围，若满足则确定符合发起到网络侧的随机接入条件。
  22. 根据权利要求12所述的方法，其中，在存在与覆盖增强级别不相关的其他接入控制机制的情况下，所述用户设备在所述其他接入控制机制之前或者之后根据所述与覆盖增强级别相关的接入控制信息判断是否符合发起到所述网络侧的随机接入条件。
  23. 根据权利要求12或14所述的方法，其中，所述接入控制信息还包括：允许满足接入控制条件的目标用户设备进行随机接入的预设比例，或者，不允许满足接入控制条件的目标用户设备进行随机接入的预设比例。
  24. 根据权利要求23所述的方法，其中，采用小于1的比例因子设置所述预设比例；或，对不同接入级别的用户设备分别设置1bit的用于指示允许接入或不允许接入的指示。
  25. 一种接入控制装置，应用在网络侧网元，包括：
    确定模块，设置为确定针对覆盖增强的用户设备实施接入控制；
    发送模块，设置为发送与覆盖增强级别相关的接入控制信息，所述接入控制信息用于向所述用户设备指示所述网络侧网元的随机接入条件。
  26. 根据权利要求25所述的装置，其中，所述接入控制信息包括以下至少之一：
    允许用户设备接入的覆盖增强级别或覆盖增强重复因子或覆盖增强模式的上限、不允许用户设备接入的覆盖增强级别或覆盖增强重复因子或覆盖增强模式的下限、允许用户设备接入的覆盖增强级别或覆盖增强重复因子或覆盖增强模式的范围、不允许用户设备接入的覆盖增强级别或覆盖增强重复因子或覆盖增强模式的范围。
  27. 一种接入控制装置，应用在终端侧的用户设备，包括：
    获取模块，设置为获取与覆盖增强级别相关的接入控制信息；
    判断模块，设置为根据所述与覆盖增强级别相关的接入控制信息判断是否符合发起到网络侧的随机接入条件。
  28. 根据权利要求27所述的装置，其中，所述接入控制信息用于描述以下信息至少之一：
    允许用户设备接入的覆盖增强级别或覆盖增强重复因子或覆盖增强模式的上限、不允许用户设备接入的覆盖增强级别或覆盖增强重复因子或覆盖增强模式的下限、允许用户设备接入的覆盖增强级别或覆盖增强重复因子或覆盖增强模式的范围、不允许用户设备接入的覆盖增强级别或覆盖增强重复因子或覆盖增强模式的范围。
  29. 一种存储介质，其特征在于，所述存储介质包括存储的程序，其中，所述程序运行时执行权利要求1至24中任一项所述的方法。
  30. 一种处理器，其特征在于，所述处理器用于运行程序，其中，所述程序运行时执行权利要求1至24中任一项所述的方法。
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