阅读说明：本技术 一种控制用户设备准入的方法和装置 (Method and device for controlling user equipment access ) 是由 是元吉 唐兵 武传国 谭定富 于 2020-12-21 设计创作，主要内容包括：本发明提供了一种控制用户设备准入的方法和装置,包括：确定当前时间单元的预留资源,预留资源用于保证时延敏感业务,非预留资源用于时延敏感业务和时延不敏感业务；根据请求准入的用户设备UE的业务的时延参数信息,确定其业务类型,业务类型包括时延敏感业务和时延不敏感业务；根据业务类型,在当前时间单元对请求准入的UE的业务进行资源调度；根据业务的资源调度情况,调整当前时间单元的预留资源,并根据调整后的预留资源对后续请求准入的UE的业务进行资源调度。本发明可以有效保证时延敏感业务的接入成功率,同时降低时延不敏感业务的请求失败率,从整体上提升资源调度的效率,提升用户体验。(The invention provides a method and a device for controlling the access of user equipment, comprising the following steps: determining reserved resources of a current time unit, wherein the reserved resources are used for guaranteeing delay sensitive services, and unreserved resources are used for delay sensitive services and delay insensitive services; determining the service type of the service of User Equipment (UE) requesting for admission according to the time delay parameter information of the service, wherein the service type comprises a time delay sensitive service and a time delay insensitive service; according to the service type, carrying out resource scheduling on the service of the UE requesting for admission in the current time unit; and adjusting the reserved resources of the current time unit according to the resource scheduling condition of the service, and performing resource scheduling on the service of the UE which subsequently requests for admission according to the adjusted reserved resources. The invention can effectively ensure the access success rate of the delay sensitive service, simultaneously reduce the request failure rate of the delay insensitive service, integrally improve the efficiency of resource scheduling and improve the user experience.)

1. A method for controlling admission of user equipment, comprising:

determining reserved resources of a current time unit, wherein the reserved resources are used for guaranteeing delay sensitive services, and unreserved resources are used for delay sensitive services and delay insensitive services;

determining the service type of the service of User Equipment (UE) requesting for admission according to the time delay parameter information of the service, wherein the service type comprises a time delay sensitive service and a time delay insensitive service;

according to the service type, carrying out resource scheduling on the service of the UE which requests to be admitted in the current time unit;

and adjusting the reserved resources of the current time unit according to the resource scheduling condition of the service, and performing resource scheduling on the service of the UE which subsequently requests for admission according to the adjusted reserved resources.

2. The method of claim 1, wherein the determining reserved resources for the current time unit comprises:

determining the occupancy rates of the time delay sensitive service resources of a plurality of time units before the current time unit;

taking the average value of the occupancy rates of the time delay sensitive service resources of the plurality of time units as the reservation ratio of the time delay sensitive service resources of the current time unit;

and determining the reserved resources of the current time unit according to the reserved ratio.

3. The method of claim 1, wherein the resource scheduling for the traffic of the UE requesting the admission comprises:

if the service type of the UE is a time delay sensitive service and the reserved resource can meet the current allocation requirement of the UE, allocating resources for the UE in the reserved resource;

if the service type of the UE is a time delay sensitive service and the reserved resource cannot meet the current allocation requirement of the UE, allocating resources to the UE in the unreserved resources;

and if the service type of the UE is a delay insensitive service, allocating resources to the UE in the unreserved resources.

4. The method as claimed in claim 1, wherein said adjusting the reserved resource of the current time unit according to the resource scheduling condition of the service comprises:

when the delay insensitive service cannot be successfully scheduled in the current time unit, reducing the reserved resources of the current time unit;

and/or when the non-reserved resources are used for scheduling the delay sensitive service in the current time unit, increasing the reserved resources of the current time unit.

5. Method for controlling admission of user equipment according to claim 4, characterized by:

and adjusting the reserved resources of the current time unit by adjusting the reserved ratio of the time delay sensitive service resources of the current time unit.

6. Method for controlling admission of user equipment according to claim 5, characterized by:

the reservation ratio of the time delay sensitive service resource of the current time unit is adjusted according to the following formula:

β＝α*(1-ω)^p*(1+γ)^q；

wherein β is the adjusted reservation ratio of the delay sensitive service resource, α is the initial reservation ratio of the delay sensitive service resource of the current time unit, ω <1, ω is a decreasing factor, p is the number of times of scheduling failure of the delay insensitive service in the current time unit, γ <1, γ is an increasing factor, and q is the number of times of scheduling non-reserved resources of the delay sensitive service in the current time unit.

7. An apparatus for controlling admission of user equipment, comprising:

a reserved resource determining module, configured to determine a reserved resource of a current time unit, where the reserved resource is used to guarantee a delay sensitive service, and an unreserved resource is used for a delay sensitive service and a delay insensitive service;

the service type determining module is used for determining the service type of the service of the user equipment UE according to the time delay parameter information of the service of the user equipment UE requesting for access, wherein the service type comprises a time delay sensitive service and a time delay insensitive service;

a resource scheduling module, configured to perform resource scheduling on the service of the UE requesting admission in the current time unit according to the service type;

a reserved resource adjusting module, configured to adjust the reserved resource of the current time unit according to a resource scheduling condition of a service;

and the resource scheduling module is also used for performing resource scheduling on the subsequent service of the UE requesting admission according to the adjusted reserved resources.

8. An arrangement for controlling admission of user equipment according to claim 7, characterized by:

the resource scheduling module is further configured to allocate resources to the UE in the reserved resources if the service type of the UE is a delay sensitive service and the reserved resources can meet the current allocation requirement of the UE; if the service type of the UE is a time delay sensitive service and the reserved resource cannot meet the current allocation requirement of the UE, allocating resources to the UE in the unreserved resources; and if the service type of the UE is a delay insensitive service, allocating resources to the UE in the unreserved resources.

9. An arrangement for controlling admission of user equipment according to claim 7, characterized by:

the reserved resource adjusting module is further configured to reduce the reserved resources of the current time unit when the delay insensitive service cannot be successfully scheduled in the current time unit; and/or when the non-reserved resources are used for scheduling the delay sensitive service in the current time unit, increasing the reserved resources of the current time unit.

10. An arrangement for controlling admission of user equipment according to claim 9, characterized by:

the reserved resource adjusting module is further configured to adjust the reserved resource of the current time unit by adjusting the reservation ratio of the delay sensitive service resource of the current time unit.

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for controlling user equipment admission.

Background

With the development of wireless communication technology, the application of wireless networks is more and more extensive, and wireless access technology is continuously evolving. For example, fifth generation (5G) mobile communication technology has been in commercial use, and convergence of satellite communication and terrestrial communication has also begun to enter the research phase. The 3rd Generation Partnership Project (3 GPP) working group also starts to study the convergence of satellite communication and terrestrial radio access networks (such as terrestrial 5G networks), and constructs a sea, land, air and ground integrated communication network to meet various ubiquitous business requirements of users, which is an important direction for future communication development.

Since the satellite is far from the ground, for User Equipment (UE) on the ground, the satellite communication has a higher time delay than the ground communication, and when the UE is switched to a certain target satellite cell, if the service cannot be switched and admitted in time, the disadvantage of the time delay will be more obvious, and even the service will be interrupted, so that the user experience will be reduced.

Disclosure of Invention

The invention aims to provide a method and a device for controlling user equipment access, which are used for solving the problem that user experience is reduced due to high time delay of satellite communication and untimely user service switching when UE is switched to a target satellite cell.

The technical scheme provided by the invention is as follows:

a method of controlling user equipment admission, comprising: determining reserved resources of a current time unit, wherein the reserved resources are used for guaranteeing delay sensitive services, and unreserved resources are used for delay sensitive services and delay insensitive services; determining the service type of the service of User Equipment (UE) requesting for admission according to the time delay parameter information of the service, wherein the service type comprises a time delay sensitive service and a time delay insensitive service; according to the service type, carrying out resource scheduling on the service of the UE which requests to be admitted in the current time unit; and adjusting the reserved resources of the current time unit according to the resource scheduling condition of the service, and performing resource scheduling on the service of the UE which subsequently requests for admission according to the adjusted reserved resources.

Further, the determining the reserved resource of the current time unit includes: determining the occupancy rates of the time delay sensitive service resources of a plurality of time units before the current time unit; taking the average value of the occupancy rates of the time delay sensitive service resources of the plurality of time units as the reservation ratio of the time delay sensitive service resources of the current time unit; and determining the reserved resources of the current time unit according to the reserved ratio.

Further, the resource scheduling for the service of the UE requesting the admission includes: if the service type of the UE is a time delay sensitive service and the reserved resource can meet the current allocation requirement of the UE, allocating resources for the UE in the reserved resource; if the service type of the UE is a time delay sensitive service and the reserved resource cannot meet the current allocation requirement of the UE, allocating resources to the UE in the unreserved resources; and if the service type of the UE is a delay insensitive service, allocating resources to the UE in the unreserved resources.

Further, the adjusting the reserved resource of the current time unit according to the service resource scheduling condition includes: when the delay insensitive service cannot be successfully scheduled in the current time unit, reducing the reserved resources of the current time unit; and/or when the non-reserved resources are used for scheduling the delay sensitive service in the current time unit, increasing the reserved resources of the current time unit.

Further, the reserved resource of the current time unit is adjusted by adjusting the reservation ratio of the delay sensitive traffic resource of the current time unit.

Further, the reservation ratio of the delay sensitive traffic resource of the current time unit is adjusted according to the following formula:

β＝α*(1-ω)^p*(1+γ)^q；

wherein β is the adjusted reservation ratio of the delay sensitive service resource, α is the initial reservation ratio of the delay sensitive service resource of the current time unit, ω <1, ω is a decreasing factor, p is the number of times of scheduling failure of the delay insensitive service in the current time unit, γ <1, γ is an increasing factor, and q is the number of times of scheduling non-reserved resources of the delay sensitive service in the current time unit.

The invention also provides a device for controlling the access of the user equipment, which comprises: a reserved resource determining module, configured to determine a reserved resource of a current time unit, where the reserved resource is used to guarantee a delay sensitive service, and an unreserved resource is used for a delay sensitive service and a delay insensitive service; the service type determining module is used for determining the service type of the service of the user equipment UE according to the time delay parameter information of the service of the user equipment UE requesting for access, wherein the service type comprises a time delay sensitive service and a time delay insensitive service; a resource scheduling module, configured to perform resource scheduling on the service of the UE requesting admission in the current time unit according to the service type; a reserved resource adjusting module, configured to adjust the reserved resource of the current time unit according to a resource scheduling condition of a service; and the resource scheduling module is also used for performing resource scheduling on the subsequent service of the UE requesting admission according to the adjusted reserved resources.

Further, the resource scheduling module is further configured to allocate a resource to the UE in the reserved resource if the service type of the UE is a delay sensitive service and the reserved resource can meet the current allocation requirement of the UE; if the service type of the UE is a time delay sensitive service and the reserved resource cannot meet the current allocation requirement of the UE, allocating resources to the UE in the unreserved resources; and if the service type of the UE is a delay insensitive service, allocating resources to the UE in the unreserved resources.

Further, the reserved resource adjusting module is further configured to reduce the reserved resources of the current time unit when the delay insensitive service cannot be successfully scheduled in the current time unit; and/or when the non-reserved resources are used for scheduling the delay sensitive service in the current time unit, increasing the reserved resources of the current time unit.

Further, the reserved resource adjusting module is further configured to adjust the reserved resource of the current time unit by adjusting a reservation ratio of the delay sensitive service resource of the current time unit.

The method and the device for controlling the access of the user equipment provided by the invention can at least bring the following beneficial effects:

1. the invention divides the service into the delay sensitive service and the delay insensitive service according to the delay parameter information of the service, effectively ensures the access success rate of the delay sensitive service by reserving resources, and dynamically adjusts the ratio of the reserved resources according to the service scheduling condition, thereby integrally improving the efficiency of resource scheduling and improving the user experience.

2. The invention reduces the reserved resources when the scheduling of the time delay insensitive service fails in the current time unit, thereby ensuring the lower request failure rate of the time delay insensitive service.

3. The invention increases the reserved resources when the delay sensitive service uses the non-reserved resource scheduling in the current time unit, thereby further ensuring the low delay and the access success rate of the delay sensitive service.

Drawings

The above features, technical features, advantages and implementations of a method and apparatus for controlling admission of a user equipment will be further described in the following detailed description of preferred embodiments in a clearly understandable manner in conjunction with the accompanying drawings.

Fig. 1 is a schematic diagram of a method for controlling admission of user equipment according to an embodiment of the present invention;

fig. 2 is a schematic diagram of an apparatus for controlling admission of user equipment according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a communication system according to an embodiment of the present invention.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.

For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically depicted, or only one of them is labeled. In this document, "one" means not only "only one" but also a case of "more than one".

Please refer to fig. 3, which is a diagram illustrating a communication system according to an embodiment of the present invention. As shown in fig. 3, the communication system includes AN Access Network (AN) 110 and a Core Network (Core Network, CN)120, and a User Equipment (UE) 130 accesses to a wireless Network through the AN 110 and communicates with other networks, such as a Data Network (Data Network), through the CN 120.

The AN may also be referred to as a Radio Access Network (RAN), and the device on the AN side may be referred to as AN device or a RAN device, and may also be referred to as a base station. The names of the different communication systems are different, for example, in a Long Term Evolution (LTE) system, the communication system may be referred to as an evolved Node B (eNB), and in a 5G system, the communication system may be referred to as a next generation Node B (gnb). AN apparatus may also be a Centralized Unit (CU), a Distributed Unit (DU), or include a CU and a DU.

The AN device communicates with the UE over AN air interface (Uu), and the AN device can serve a plurality of UEs. When the quality of service of the UE in the AN device becomes poor, for example, the channel quality becomes poor, the AN device currently serving the UE may handover the UE to another AN device to obtain better quality of service. The AN device providing service for the UE before the handover is called a source AN device, and the AN device providing service for the UE after the handover is called a target AN device. The target AN equipment can serve a plurality of UEs, when the source access network equipment requests to switch the UE into the target AN equipment, other UE or UEs may be to be accessed into the target AN equipment, and at the moment, the target AN equipment can control the access of the UE through a certain admission principle so as to ensure the service quality.

Currently, a target AN device performs admission control according to a priority level provided by Quality of Service (QoS) information carried by AN Evolved Packet System (EPS). However, this approach cannot meet the requirement for the service with higher latency requirement, so that the user experience is degraded.

In particular, as the technology evolves, for example, in the communication system shown in fig. 3, the AN device is disposed on a satellite, and the satellite is farther away from the terrestrial UE, the satellite communication has a feature of high time delay, and therefore, it is desirable to have better admission guarantee for the service with higher time delay requirement.

In view of the above problems, in the embodiment of the present invention, when performing admission judgment, according to the delay parameter information provided by the service QoS information, the service is divided into two types, namely, a delay sensitive service and a delay insensitive service, and resources are reserved for the delay sensitive service; when the resources of the service are scheduled, the delay sensitive service uses reserved resources and unreserved resources, the delay insensitive service can only use unreserved resources, and the reserved resources are dynamically adjusted according to the resource scheduling condition of the service, so that the access success rate of the delay sensitive service is ensured, the request failure rate of the delay insensitive service is reduced, and the user experience is improved.

Please refer to fig. 1, which is a diagram illustrating a method for controlling UE admission according to an embodiment of the present invention. As shown in fig. 1, the method is performed by a target access network device, and includes the following steps:

s100: the reserved resources for the current time unit are determined.

The allocable resources of the current time unit of the target cell are divided into reserved resources and unreserved resources.

And using the reserved resources for the admission of the delay sensitive service, and using the unreserved resources for the admission of the delay sensitive service and the delay insensitive service.

The determination of the reserved resource of the current time unit can be determined according to the occupation condition of the historical time delay sensitive service resource. The method specifically comprises the following steps:

s110, determining the occupancy rates of the time delay sensitive service resources of a plurality of time units before the current time unit;

s120, taking the average value of the occupancy rates of the time delay sensitive service resources of a plurality of time units as the reservation ratio of the time delay sensitive service resources of the current time unit;

s130, according to the reservation ratio, the reserved resource of the current time unit is determined.

For example, the AN device may dynamically maintain a table locally, and count the occupancy rate of the delay-sensitive traffic resource in each time unit, where the occupancy rate may be AN average value of the occupancy rates of the delay-sensitive traffic resources in the previous time units.

Taking a time unit as a slot as AN example, the AN equipment counts the occupancy rate of the time delay sensitive service resource of each slot; and (2) calculating the average value of the occupancy rates of the time delay sensitive service resources in the M slots counted from the (N-M) th slot to the (N-1) th slot, and taking the average value as the reserved ratio alpha of the Nth slot. Thereby obtaining the occupancy rate table of the delay sensitive service resource as shown in table 1 below. The value of M is not limited, and can be selected according to the requirement.

Table 1 occupancy rate of delay sensitive traffic resources

The reservation ratio α can be updated according to the following formula:

wherein, alpha is the reserved ratio of the time delay sensitive service resource of the Nth time unit, alpha_nIs the occupancy rate of the delay sensitive service resource in the nth time unit.

The value of M is not limited in the present invention, and may be selected according to needs, for example, the value of M may be any one of 80 to 160.

S200: the traffic type of the UE is determined.

The target AN equipment receives the switching request message from the source AN equipment and acquires the QoS information of the service of the UE requesting the admission. The QoS information includes Delay parameter information such as Packet Delay Budget (PDB).

The target AN equipment acquires time delay parameter information, such as PDB, and divides the service types into time delay sensitive service and time delay insensitive service according to the time delay parameter information. For example, when the PDB is less than or equal to the threshold T, the delay sensitive service is included; otherwise, the delay insensitive service is included.

S300: and according to the service type of the UE, carrying out resource scheduling on the service of the UE which requests to be admitted in the current time unit.

Specifically, the delay sensitive service preferentially uses reserved resources, and when the reserved resources are insufficient, non-reserved resources can be used; whereas delay insensitive services can only use unreserved resources.

That is, if the service type of the UE is a delay sensitive service and the reserved resource can meet the current allocation requirement of the UE, allocating the resource to the UE in the reserved resource; and if the service type of the UE is a time delay sensitive service and the reserved resources cannot meet the allocation requirement of the UE, allocating resources for the UE in the unreserved resources. Thus, the admission of the delay sensitive service can be ensured to a greater extent.

And if the service type of the UE is the delay insensitive service, allocating resources for the UE in the unreserved resources.

S400: and adjusting the reserved resources of the current time unit according to the resource scheduling condition of the service.

The method specifically comprises the following steps: when the delay insensitive service cannot be successfully scheduled in the current time unit, reducing the reserved resources of the current time unit; and when the non-reserved resources are used for scheduling the delay sensitive service in the current time unit, increasing the reserved resources of the current time unit.

And adjusting the reserved resources of the current time unit by adjusting the reserved ratio of the time delay sensitive service resources of the current time unit.

In one embodiment, if a delay insensitive service scheduling failure occurs in the resource scheduling of the current time unit (assumed to be time unit N), the reservation ratio α of the delay sensitive service resource of time unit N is updated according to the following formula:

β＝α*(1-ω)^p。

wherein β is the reservation ratio of the delay sensitive service resource after the adjustment of the current time unit, ω <1, ω is a decreasing factor, and p is the number of times of scheduling failure of the delay insensitive service in the current time unit.

In another embodiment, if the delay-sensitive traffic uses the unreserved resource in the resource scheduling of the current time unit (assumed to be time unit N), the reservation ratio α of the delay-sensitive traffic resource of time unit N may be updated according to the following formula:

β＝α*(1+γ)^q；

wherein γ is less than 1, γ is an increment factor, and q is the number of times that the delay sensitive service schedules unreserved resources in the current time unit.

In another embodiment, the reservation ratio α of the delay sensitive traffic resource of the time unit N is updated according to the following formula:

β＝α*(1-ω)^p*(1+γ)^q。

counting reserved resources X currently used₁(ii) a Calculating the adjusted ideal reserved resource X according to the adjusted reserved ratio of the time delay sensitive service resource₂＝β*X₀，X₀Allocable resources for a current time unit of the target cell; mixing X₁And X₂The maximum value of (a) is used as the adjusted reserved resource.

S500: and performing resource scheduling on the services of the UE which subsequently requests the admission of the current time unit according to the adjusted reserved resources.

For example, referring to fig. 3, it is assumed that for the same target AN device, there are 6 UEs simultaneously applying for handover admission, where UE0 is GBR (guaranteed bit rate) traffic, priority is 1, and PDB (packet delay budget) is 50 ms; UE1 is GBR service, the priority is 2, PDB is 100 ms; UE2 is GBR service, the priority is 3, PDB is 150 ms; UE3 is Non-GBR (guaranteed bit rate) service, priority is 4, PDB is 250 ms; UE4 is a Non-GBR service, the priority is 5, and the PDB is 150 ms; the UE5 is Non-GBR traffic with a priority of 6 and a PDB of 50 ms.

Assuming that the threshold T is 100ms, the UE0 is a delay sensitive service, the UE1 is a delay sensitive service, the UE2 is a delay insensitive service, the UE3 is a delay insensitive service, the UE4 is a delay insensitive service, and the UE5 is a delay sensitive service.

Assuming that the admission priority of the delay-sensitive service is higher than that of the delay-insensitive service, and the admission priorities are differentiated according to the priority coefficients in the same service type, the admission order (i.e., the admission priority, which is also the resource allocation order) of the UEs is UE0, UE1, UE5, UE2, UE3, and UE 4.

Suppose UE0, UE1, UE5 occupy partially reserved resources and UE2 occupies completely unreserved resources. When scheduling UE3, UE3 is delay insensitive traffic and UE3 fails scheduling because unreserved resources have been used up. By applying the strategy of the embodiment, the reserved resources are triggered to be adjusted, the reserved resources are reduced, and the unreserved resources are increased.

When scheduling UE4, UE4 is delay insensitive traffic, and UE4 is scheduled successfully due to the addition of unreserved resources.

Therefore, the method for controlling the UE admission based on the embodiment increases the scheduling success probability of the delay insensitive service.

The above is only an example of reserved resource reduction caused by scheduling failure of the delay insensitive service, and there is also a case that the delay sensitive service uses non-reserved resources due to insufficient reserved resources, so that the reserved resources are increased, and thus the admission success rate of the subsequent delay sensitive service can be increased.

Based on the same inventive concept, AN embodiment of the present invention further provides a device, which may be AN apparatus, or may also be a device located in the AN apparatus, such as a chip or a board, and is configured to execute the method executed by the target AN apparatus or the source AN apparatus in the foregoing method embodiment.

Please refer to fig. 2, which is a diagram illustrating an apparatus for controlling UE admission according to an embodiment of the present invention. As shown in fig. 2, the apparatus is located in a target AN device, and includes a reserved resource determining module 110, a traffic type determining module 120, a resource scheduling module 130, and a reserved resource adjusting module 140.

A reserved resource determining module 110, configured to determine reserved resources of the current time unit. The allocable resources of the current time unit of the target cell are divided into reserved resources and unreserved resources. And using the reserved resources for the admission of the delay sensitive service, and using the unreserved resources for the admission of the delay sensitive service and the delay insensitive service.

The determination of the reserved resource of the current time unit can be determined according to the occupation condition of the historical time delay sensitive service resource.

The reserved resource determining module 110 may be further configured to determine occupancy rates of delay-sensitive service resources of a plurality of time units before the current time unit; taking the average value of the occupancy rates of the time delay sensitive service resources of a plurality of time units as the reservation ratio of the time delay sensitive service resources of the current time unit; and determining the reserved resources of the current time unit according to the reservation ratio.

The reservation ratio α can be updated according to the following formula:

wherein, alpha is the reserved ratio of the time delay sensitive service resource of the Nth time unit, alpha_nIs the occupancy rate of the delay sensitive service resource in the nth time unit.

The service type determining module 120 is configured to determine a service type of a user equipment UE requesting admission according to delay parameter information of a service of the UE, where the service type includes a delay sensitive service and a delay insensitive service.

The target AN equipment receives the switching request message from the source AN equipment and acquires the QoS information of the service of the UE requesting the admission. The QoS information includes Delay parameter information such as Packet Delay Budget (PDB).

The target AN equipment acquires time delay parameter information, such as PDB, and divides the service types into time delay sensitive service and time delay insensitive service according to the time delay parameter information. For example, when the PDB is less than or equal to the threshold T, the delay sensitive service is included; otherwise, the delay insensitive service is included.

And a resource scheduling module 130, configured to perform resource scheduling on the service of the UE requesting admission in the current time unit according to the service type of the UE.

Specifically, the delay sensitive service preferentially uses reserved resources, and when the reserved resources are insufficient, non-reserved resources can be used; whereas delay insensitive services can only use unreserved resources.

The resource scheduling module 130 is further configured to allocate a resource to the UE in the reserved resource if the service type of the UE is a delay sensitive service and the reserved resource can meet the current allocation requirement of the UE; and if the service type of the UE is a time delay sensitive service and the reserved resources cannot meet the allocation requirement of the UE, allocating resources for the UE in the unreserved resources. Thus, the admission of the delay sensitive service can be ensured to a greater extent.

The resource scheduling module 130 is further configured to allocate a resource to the UE in the unreserved resource if the service type of the UE is a delay insensitive service.

And a reserved resource adjusting module 140, configured to adjust the reserved resource of the current time unit according to the resource scheduling condition of the service.

The method specifically comprises the following steps: the reserved resource adjusting module 140 is further configured to reduce the reserved resources of the current time unit when the delay insensitive service cannot be successfully scheduled in the current time unit; and when the non-reserved resources are used for scheduling the delay sensitive service in the current time unit, increasing the reserved resources of the current time unit.

The reserved resource adjusting module 140 is further configured to adjust the reserved resource of the current time unit by adjusting the reservation ratio of the delay sensitive traffic resource of the current time unit.

In one embodiment, if a delay insensitive service scheduling failure occurs in the resource scheduling of the current time unit (assumed to be time unit N), the reservation ratio α of the delay sensitive service resource of time unit N is updated according to the following formula:

β＝α*(1-ω)^p。

wherein β is the reservation ratio of the delay sensitive service resource after the adjustment of the current time unit, ω <1, ω is a decreasing factor, and p is the number of times of scheduling failure of the delay insensitive service in the current time unit.

In another embodiment, if the delay-sensitive traffic uses the unreserved resource in the resource scheduling of the current time unit (assumed to be time unit N), the reservation ratio α of the delay-sensitive traffic resource of time unit N may be updated according to the following formula:

β＝α*(1+γ)^q；

wherein γ is less than 1, γ is an increment factor, and q is the number of times that the delay sensitive service schedules unreserved resources in the current time unit.

In another embodiment, the reservation ratio α of the delay sensitive traffic resource of the time unit N is updated according to the following formula:

β＝α*(1-ω)^p*(1+γ)^q。

counting reserved resources X currently used₁(ii) a Calculating the adjusted ideal reserved resource X according to the adjusted reserved ratio of the time delay sensitive service resource₂＝β*X₀，X₀Allocable resources for a current time unit of the target cell; mixing X₁And X₂The maximum value of (a) is used as the adjusted reserved resource.

The resource scheduling module 130 is further configured to perform resource scheduling on the subsequent service of the UE requesting admission according to the adjusted reserved resource.

It should be noted that the embodiment of the apparatus for controlling user equipment admission provided by the present invention and the embodiment of the method for controlling user equipment admission provided by the foregoing are all based on the same inventive concept, and can obtain the same technical effect; thus, other specific contents of the embodiment of the apparatus for controlling admission of user equipment may refer to the description of the foregoing embodiment of the method for controlling admission of user equipment.

It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.