WO2015120571A1

WO2015120571A1 - Method and apparatus for controlling data transmission rate in carrier aggregation

Info

Publication number: WO2015120571A1
Application number: PCT/CN2014/071956
Authority: WO
Inventors: 黄曲芳; 戴明增
Original assignee: 华为技术有限公司
Priority date: 2014-02-11
Filing date: 2014-02-11
Publication date: 2015-08-20
Also published as: CN105122880A; CN105122880B

Abstract

A method and an apparatus for controlling a data transmission rate in carrier aggregation. The method comprises: setting a UE aggregate maximum bit rate (UE-AMBR) used by a main base station and a UE-AMBR used by an auxiliary base station according to a first APN aggregate maximum bit rate (APN-AMBR) of an access point name (APN) corresponding to a service to be transmitted by the main base station and a second APN-AMBR of an APN corresponding to a service to be transmitted by the auxiliary base station. By using the method or the apparatus, the set UE-AMBRs used by the main base station and the auxiliary base station can match the APN-AMBRs of the APNs corresponding to the services to be transmitted on the main base station and the auxiliary base station, so that data transmission rates on the main base station and the auxiliary base station are optimal, and further, the transmission rate of a whole communications system is optimal.

Description

Method and device for controlling data transmission rate in carrier wave polymerization

Technical field

The present invention relates to the field of network communication technologies, and in particular, to a method and apparatus for controlling data transmission rate in carrier aggregation. Background technique

With the development of mobile communication systems, the transmission rate and service quality that mobile communication systems can provide are getting higher and higher, and user services are also placing higher and higher requirements on transmission rates, in order to avoid a large increase in configuration bandwidth. The 3GPP (Third Generation Partnership Project) introduces Carrier Aggregation (CA) technology to ensure the transmission rate of the general user service and provide higher throughput for some users.

According to the location of the base station where the aggregated carrier is located, the carrier aggregation of the LTE (Long Term Evolution) system can be roughly divided into: carrier aggregation in the base station and carrier aggregation between the base stations. In carrier aggregation between base stations, there is one of the following shunt modes:

The primary base station first determines the offloading decision according to the service type of the data carried, that is, determines which service data is transmitted by the primary base station, and which service data is transmitted by the secondary base station, and then notifies the determined offloading decision to S. -GW (Serving Gateway, Signaling Gateway). Based on the offloading decision, the S-GW distributes data of the corresponding service to the primary base station and the secondary base station.

In the LTE system, the data types of data are mainly divided into two categories: GBR ( Guaranteed Bit

Rate, guaranteed bit rate) service and non GBR (non-guaranteed bit rate) service. In the GBR service and the non-GBR service, it is divided into multiple sub-services. For data of non GBR services, the network does not guarantee a certain transmission rate, that is, when the network load is light, it provides a higher transmission rate for the data, and when the network load is heavier, provides a lower transmission for the data. rate. In addition, in order to control the total data traffic of all the non-GBR services of a user equipment (UE), the LTE system introduces the concept of AgBR (Aggregation Maximum Bit Rate), and AMBR indicates the same. The transmission rate of the data of all non-GBR services of the UE sums the set upper limit value. Among them, the AMBR is divided into two types, the AMBR of the UE and the AMBR of the APN (Access Point Name). among them, The AMBR of the UE is abbreviated as UE-AMBR (UE Aggregation Maximum Bit Rate), and the AMBR of the APN is abbreviated as APN-AgBR (APN Aggregation Maximum Bit Rate). Both UE-AMBR and APN-AMBR are stored in the HSS (Home Subscriber Server).

At present, in the carrier aggregation between base stations, there is no effective method for controlling the transmission rate, which ultimately leads to the failure of the entire communication system to achieve an optimal transmission rate. Summary of the invention

In view of the above, the present invention provides a method and apparatus for controlling a data transmission rate in carrier aggregation, based on a first bit of an access point APN corresponding to a service that the primary base station needs to transmit, a maximum bit rate APN-AMBR and a secondary The second APN-AMBR of the APN corresponding to the service that the base station needs to transmit, the terminal aggregated maximum bit rate UE-AMBR used by the primary base station, and the UE-AMBR used by the secondary base station, and the services that need to be transmitted on the primary base station and the secondary base station are solved. The APN-AMBR of the corresponding APN does not match the UE-AMBR used by the primary base station and the secondary base station, and the entire communication system cannot achieve the optimal transmission rate. The specific plan is as follows:

According to a first possible implementation manner of the first aspect of the present application, the application provides a method for controlling a data transmission rate in carrier aggregation, where the method includes:

Determining the access point corresponding to the service that the primary base station needs to transmit. The first access point of the APN aggregates the maximum bit rate APN-AMBR and the second APN-AMBR of the APN corresponding to the service that the secondary base station needs to transmit;

And setting, according to the first APN-AMBR and the second APN-AMBR, a terminal aggregated maximum bit rate UE-AMBR used by the primary base station and a UE-AMBR used by the secondary base station.

With reference to the second possible implementation of the first aspect, the method further includes:

The primary base station receives the first message sent by the mobility management entity MME, where the first message includes a mapping relationship between the service identifier corresponding to the service to be transmitted and the APN, and an APN-AMBR of the APN, where the transmission needs to be performed. The service includes the service that the primary base station needs to transmit and the service that the secondary base station needs to transmit, and the APN includes an APN corresponding to the service that the primary base station needs to transmit, and an APN corresponding to the service that the secondary base station needs to transmit;

Determining a first APN-AMBR and a secondary of an APN corresponding to a service that the primary base station needs to transmit The second APN-AMBR of the APN corresponding to the service that the base station needs to transmit includes: determining, by the primary base station, the first APN-AMBR and the second APN-AMBR according to the first message and the service list. The service list includes a service identifier corresponding to the service that the primary base station needs to transmit, and a service identifier corresponding to the service that the secondary base station needs to transmit, determined by the primary base station;

The UE-AMBR used by the primary base station and the UE-AMBR used by the secondary base station, based on the first APN-AMBR and the second APN-AMBR, specifically include:

The primary base station sets, according to the first APN-AMBR and the second APN-AMBR, a UE-AMBR used by the primary base station and a UE-AMBR used by the secondary base station.

In conjunction with the third possible implementation of the first aspect, the method further includes:

Receiving, by the MME, the second message sent by the primary base station, where the second message has a service list determined by the primary base station, where the service list includes a service identifier corresponding to the service that the primary base station needs to transmit, and the secondary base station needs to transmit Business identity corresponding to the business;

And determining, by the first APN-AMBR of the APN corresponding to the service that the primary base station needs to transmit, and the second APN-AMBR of the APN corresponding to the service that the secondary base station needs to transmit, specifically:

Determining, by the MME, the first APN-AMBR and the APN-AMBR according to the second message, the mapping relationship between the service identifier and the APN, and the APN-AMBR of the APN saved by the second message a second APN-AMBR, where the service to be transmitted includes a service that the primary base station needs to transmit and a service that the secondary base station needs to transmit, and the APN includes an APN corresponding to a service that the primary base station needs to transmit, and Describe the APN corresponding to the service that the secondary base station needs to transmit;

The MME sets, according to the first APN-AMBR and the second APN-AMBR, a UE-AMBR used by the primary base station and a UE-AMBR used by the secondary base station.

With reference to the fourth possible implementation manner of any one of the first three possible implementation manners of the first aspect, when the sum of the first APN-AMBR and the second APN-AMBR is less than or equal to that used by the UE In the UE-AMBR, the UE-AMBR used by the primary base station and the UE-AMBR used by the secondary base station are set based on the first APN-AMBR and the second APN-AMBR. The first APN-AMBR of the APN corresponding to the service that the primary base station needs to transmit is set to be the UE-AMBR used by the primary base station, and the second APN corresponding to the service that the secondary base station needs to transmit. The APN-AMBR is set to the UE-AMBR used by the secondary base station.

With reference to the fifth possible implementation manner of any one of the first three possible implementation manners of the first aspect, when the sum of the first APN-AMBR and the second APN-AMBR is greater than the UE used by the UE- In the case of the AMBR, the setting of the UE-AMBR used by the primary base station and the UE-AMBR used by the secondary base station based on the first APN-AMBR and the second APN-AMBR, specifically: acquiring the first APN-AMBR Taking the proportion of the sum and taking the ratio as a first ratio; obtaining a ratio of the second APN-AMBR to the sum and taking the ratio as a second ratio; acquiring the first ratio with the UE a first product value of the used UE-AMBR, and a second product value of the second ratio and the UE-AMBR used by the UE; using the first product value as the UE-AMBR used by the primary base station, The second product value is used as the UE-AMBR used by the secondary base station.

According to a first possible implementation manner of the second aspect of the present application, the application provides an apparatus for controlling a data transmission rate in carrier aggregation, where the apparatus includes:

a determining unit, configured to determine a first access point of the access point corresponding to the service that the primary base station needs to transmit, a maximum bit rate of the APN-AMBR, and a second APN-AMBR of the APN corresponding to the service that the secondary base station needs to transmit;

And a setting unit, configured to set, according to the first APN-AMBR and the second APN-AMBR, a terminal aggregation maximum bit rate UE-AMBR used by the primary base station and a UE-AMBR used by the secondary base station.

In conjunction with the second possible implementation of the second aspect, the device further includes:

a receiving unit, configured to receive a first message sent by the mobility management entity MME, where the first message includes a mapping relationship between a service identifier corresponding to the service to be transmitted and an APN, and an APN-AMBR of the APN, where the The service to be transmitted includes the service that the primary base station needs to transmit and the service that the secondary base station needs to transmit, and the APN includes an APN corresponding to the service that the primary base station needs to transmit, and an APN corresponding to the service that the secondary base station needs to transmit;

The determining unit is specifically configured to:

Determining a service list, where the service list includes a service corresponding to a service that the primary base station needs to transmit Identifying a service identifier corresponding to the service that the secondary base station needs to transmit;

And determining, according to the first message and the service list, the first APN-AMBR and the second APN-AMBR.

In conjunction with the third possible implementation of the second aspect, the device further includes:

a receiving unit, configured to receive a second message sent by the primary base station, where the second message carries a service list determined by the primary base station, where the service list includes a service identifier corresponding to the service that the primary base station needs to transmit, and the service identifier The service identifier corresponding to the service that the secondary base station needs to transmit;

The determining unit is specifically configured to:

Determining, according to the second message, the mapping relationship between the service identifier and the APN corresponding to the service to be transmitted, and the APN-AMBR of the APN saved by the device, determining the first APN-AMBR and the The second APN-AMBR, where the service to be transmitted includes the service that the primary base station needs to transmit and the service that the secondary base station needs to transmit, and the APN includes the APN corresponding to the service that the primary base station needs to transmit, and The APN corresponding to the service that the secondary base station needs to transmit.

With reference to the fourth possible implementation manner of any one of the foregoing three possible implementation manners of the second aspect, when the sum of the first APN-AMBR and the second APN-AMBR is less than or equal to the UE When the UE-AMBR is used, the setting unit is specifically configured to:

And setting the first APN-AMBR to a UE-AMBR used by the primary base station, and setting the second APN-AMBR as a UE-AMBR used by the secondary base station.

With reference to the fifth possible implementation manner of any one of the foregoing three possible implementation manners of the second aspect, when the sum of the first APN-AMBR and the second APN-AMBR is greater than that used by the UE In the UE-AMBR, the setting unit is specifically configured to: obtain a ratio of the first APN-AMBR to the sum and use the ratio as a first ratio; and acquire the second APN-AMBR to occupy the sum Proportion and the ratio as a second ratio; obtaining a first product value of the first ratio and a UE-AMBR used by the UE, and the second ratio and a second UE-AMBR used by the UE a product value; the first product value is used as a UE-AMBR used by the primary base station, and the second product value is used as a UE-AMBR used by the secondary base station.

With reference to the sixth possible implementation manner of any one of the first, second, fourth and fifth possible implementation manners of the second aspect, the device is the primary base station. With reference to the sixth possible implementation manner of any one of the first, third, fourth, and fifth possible implementation manners of the second aspect, the device is the MME.

It can be seen from the above technical solution that the method and apparatus for controlling data transmission rate in carrier aggregation according to the present application, based on the first access point of the access point APN corresponding to the service that the primary base station needs to transmit, aggregates the maximum bit rate APN- The second APN-AMBR of the APN corresponding to the service that the AMBR and the secondary base station need to transmit, and the UE-AMBR that is used by the primary base station to aggregate the maximum bit rate, the UE-AMBR and the secondary base station, can enable the set primary and secondary base stations to be used. The UE-AMBR matches the APN-AMBR of the APN corresponding to the service to be transmitted on the primary base station and the secondary base station, thereby ensuring that the data transmission rate on the primary base station and the secondary base station is optimal, thereby optimizing the entire communication system. Transmission rate. DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

FIG. 1 is a schematic diagram of a method for controlling data transmission rate in carrier aggregation according to an embodiment of the present application; FIG.

2 is a schematic diagram of a method for controlling a data transmission rate in carrier aggregation according to an embodiment of the present application;

FIG. 3 is a schematic diagram of another method for controlling data transmission rate in carrier aggregation according to an embodiment of the present application; FIG.

4 is a schematic diagram of an example 1 provided in an embodiment of the present application;

5 is a schematic diagram of an example 2 provided in an embodiment of the present application;

FIG. 6 is a schematic diagram of another method for controlling data transmission rate in carrier aggregation according to an embodiment of the present application; FIG.

FIG. 7 is a schematic diagram of another method for controlling data transmission rate in carrier aggregation according to an embodiment of the present application; FIG.

FIG. 8 is another method for controlling data transmission in carrier aggregation according to an embodiment of the present application. Schematic diagram of the method of rate;

FIG. 9 is a schematic diagram of an apparatus for controlling data transmission rate in carrier aggregation according to an embodiment of the present application; FIG.

FIG. 10 is a schematic diagram of another apparatus for controlling data transmission rate in carrier aggregation according to an embodiment of the present application; FIG.

FIG. 11 is a schematic diagram of another apparatus for controlling data transmission rate in carrier aggregation according to an embodiment of the present application; FIG.

FIG. 12 is a schematic diagram of another apparatus for controlling data transmission rate in carrier aggregation according to an embodiment of the present application; FIG.

FIG. 13 is a schematic diagram of another apparatus for controlling data transmission rate in carrier aggregation according to an embodiment of the present application; FIG.

Figure 14 is a structural diagram of a communication device of the present application. detailed description

For the sake of reference and clarity, the description, abbreviations or abbreviations of the technical terms used below are summarized as follows:

UE: User Equipment, user equipment;

APN: Access Point Name, access point;

HSS: Home Subscriber Server, home subscriber server;

PDN-GW: Packet Data Network Gateway, packet data gateway;

MME: Mobile Management Entity, mobile management entity;

S-GW: Serving Gateway, signaling gateway;

Non GBR: non Guaranteed Bit Rate, non-guaranteed bit rate;

AMBR: Aggregation Maximum Bit Rate, aggregate maximum bit rate;

UE-AMBR: UE Aggregation Maximum Bit Rate, the maximum aggregate rate of the terminal aggregation;

APN-AMBR: APN Aggregation Maximum Bit Rate, the maximum bit rate of the access point aggregation. In order to make the object, features and advantages of the present invention more obvious and easy to understand, the following will be The technical solutions in the embodiments of the present invention are clearly and completely described in the accompanying drawings in the embodiments of the present invention. It is obvious that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The terms "first", "second", "third", "fourth", etc. (if present) in the specification and claims of the present invention and the above figures are used to distinguish similar objects without being used for Describe a specific order or order. It is to be understood that the data so used may be interchanged as appropriate, so that the embodiments of the invention described herein can be implemented, for example, in a sequence other than those illustrated or described herein. In addition, the terms "comprises" and "comprises" and "comprises" and "includes" or "includes" or "comprises" or "comprises" or "comprises" Those steps or units may include other steps or units not explicitly listed or inherent to such processes, methods, products or devices. At present, in the carrier aggregation between the base stations, a method for controlling the transmission rate is specifically as follows: When the UE initiates a non-GBR service, the MME (Mobile Management Entity, the mobility management entity) first acquires the UE used by the UE from the HSS. The AMBR, at the same time, obtains the APN-AMBR of each APN from the HSS according to the APN to which the sub-services of the non-GBR service belong, and calculates the sum of the APN-AMBRs of the respective APNs; the MME then uses the UE-AMBR and each of the UEs. The minimum value in the sum of the APN's APN-AMBR is notified to the primary base station. The primary base station determines the UE-AMBR used by the primary base station and the secondary base station, so that the sum of the UE-AMBR values used by the primary base station and the secondary base station is equal to the minimum value notified by the MME, and notifies the UE-AMBR value used by the secondary base station to the secondary base station. Base station. The primary base station and the secondary base station respectively control the transmission rate of the carried data according to the UE-AMBR value used by the primary base station and the secondary base station.

However, based on the above control method of the transmission rate, when the communication system uses the above-described offload mode, there is a case where, as shown in FIG. 1, at the time of offloading, it is assumed that the primary base station determines that it is responsible for transmitting data of the first service (ie, The data transmitted by the APN1 and transmitted by the PDN-GW1 determines that the secondary base station is responsible for transmitting the data of the second service (that is, the data accessed by the APN2 and transmitted by the PDN-GW2). The APN-AMBR of APN1 is 30, and the APN-AMBR of APN1 is 70. The usable UE-AMBR values determined by the primary base station for itself and the secondary base station are 70 and 30, respectively. In this case, the auxiliary group The data of the second service that the station is responsible for is limited in the secondary base station (limited to 30), causing the data to accumulate in the secondary base station, and eventually the entire communication system cannot reach the optimal transmission rate.

To this end, an embodiment of the present invention provides a method and apparatus for controlling a data transmission rate in carrier aggregation, a first APN-AMBR corresponding to an APN corresponding to a service that the primary base station needs to transmit, and an APN corresponding to a service that the secondary base station needs to transmit. The second APN-AMBR, which sets the UE-AMBR used by the primary base station and the UE-AMBR used by the secondary base station, enables the set primary and secondary base stations to use the UE-AMBR and the primary base station and the secondary base station to transmit services. The APN-AMBR of the corresponding APN is matched to ensure that the data transmission rate on the primary base station and the secondary base station is optimal, thereby achieving an optimal transmission rate of the entire communication system.

The details are described below separately.

Referring to FIG. 2, an embodiment of a method for controlling a data transmission rate in carrier aggregation according to an embodiment of the present invention includes:

101. Determine a first APN-AMBR of the APN corresponding to the service that the primary base station needs to transmit, and a second APN-AMBR of the APN corresponding to the service that the secondary base station needs to transmit.

In the LTE system, the services that need to be transmitted are non-GBR services.

In the embodiment of the present invention, the first APN-AMBR is an APN-AMBR of the APN corresponding to the service that the primary base station needs to transmit, and the second APN-AMBR is the APN-AMBR of the APN corresponding to the service that the secondary base station needs to transmit. Yes, each service that needs to be transmitted can only correspond to one APN, and the same APN can correspond to multiple services. The first APN-AMBR of the APN corresponding to the service that the primary base station needs to transmit and the APN corresponding to the service that the secondary base station needs to transmit are determined. Before the second APN-AMBR, it is also required to determine which services the primary base station needs to transmit and which services the secondary base station needs to transmit, and the primary base station needs to transmit one or more services, and the secondary base station needs to transmit. The service may also be one or more types, and any service may be transmitted by the secondary base station at the same time as long as it is determined to be transmitted by the primary base station. Correspondingly, any service is determined to be transmitted by the secondary base station. This service cannot be transmitted by the primary base station at the same time.

102. Set, according to the first APN-AMBR and the second APN-AMBR, a UE-AMBR used by the primary base station and a UE-AMBR used by the secondary base station.

It should be noted that the UE-AMBR value used by the primary base station indicates the aggregated maximum bit rate that the primary base station can support, and the UE-AMBR value used by the secondary base station indicates the aggregation that the secondary base station can support. Maximum bit rate. For a better understanding of the technical solution in the embodiment of the present invention, refer to FIG. 3, which is an embodiment of a method for controlling a data transmission rate in carrier aggregation according to an embodiment of the present invention, including:

201. The primary base station receives the first message sent by the MME.

It should be noted that the first message includes a mapping relationship between the service identifier corresponding to the service to be transmitted and the APN, and the APN-AMBR of the APN, where the service to be transmitted includes the service that the primary base station needs to transmit, and The APN needs to be transmitted by the secondary base station, and the APN includes an APN corresponding to the service that the primary base station needs to transmit, and an APN corresponding to the service that the secondary base station needs to transmit.

The service to be transmitted may be one or more, and each service has its service identifier, which may be a service ID or a service name. For this, the embodiment does not impose any restrictions, as long as the correspondence between the service and the APN can be clearly identified. In other words, APN-AMBR corresponds to APN, that is, there are several APNs with several APN-AMBRs, and APN-AMBRs corresponding to different APNs can be equal.

It should be further noted that the first message may further carry a minimum value of a sum of a UE-AMBR used by the UE and an APN-AMBR of each APN, where the UE-AMBR value used by the UE is obtained from the HSS. And indicating the sum of the aggregated maximum bit rates that the primary base station and the secondary base station can support.

202. The primary base station determines, according to the first message and the service list, the first APN-AMBR and the second APN-AMBR.

After the primary base station receives the first message sent by the MME, it knows that it needs to perform the offloading decision, that is, determines the service list, where the service list includes the service identifier corresponding to the service that the primary base station needs to transmit and is determined by the primary base station. The service identifier corresponding to the service that the secondary base station needs to transmit. At this point, the primary base station determines which services the primary base station needs to transmit and which services the secondary base station needs to transmit.

In step 202, the APN-AMBR of the APN can be associated with the service that the primary base station needs to transmit or the service that the secondary base station needs to transmit, and provide the basis for the subsequent setting of the UE-AMBR used by the primary base station and the UE-AMBR used by the secondary base station. 203. The primary base station sets, according to the first APN-AMBR and the second APN-AMBR, a UE-AMBR used by the primary base station and a UE-AMBR used by the secondary base station.

It should be noted that, in the first message received by the primary base station, the minimum value is equal to the sum of the first APN-AMBR and the second APN-AMBR, that is, the sum of the first APN-AMBR and the second APN-AMBR is smaller than When the UE-AMBR is used by the UE, the foregoing step 203 is specifically: setting the first APN-AMBR as the UE-AMBR used by the primary base station, and setting the second APN-AMBR as the UE-AMBR used by the secondary base station.

For a better understanding of the technical solution in the embodiment of the present invention, refer to FIG. 4, which is an example of a method for controlling data transmission rate in carrier aggregation according to an embodiment of the present invention, which is specifically as follows:

In this example, the first message sent by the MME is:

"Min ( UE-AMBR, ( APN-AMBR 1+APN-AMBR2 ) ) 100

APN-AMBR 1 30 session 1 A

APN-AMBR2 70 session2A"

It is known from the first message that the service to be transmitted is session1A and session2A, and session1A is the service identifier of a certain service, and the service indicated by the service corresponds to APN1, APN1 of APN1 is 30, and session2A is the service identifier of another service, and The indicated service corresponds to APN2, and the APN-AMBR2 of APN2 is 70.

In this example, the primary base station determines that the service transmitted by itself is session1A, and the service transmitted by the secondary base station is session2A, so the primary base station determines that the first APN-AMBR is 30 and the second APN-AMBR is 70.

As shown in FIG. 4, the UE-AMBR used by the UE is 100, and the sum of the APN-AMBRs of the two APNs is also 100. The sum of the UE-AMBR used by the UE and the APN-AMBR of the two APNs is equal, so the primary base station is set. The used UE-AMBR is the first APN-AMBR (30), and the UE-AMBR used by the secondary base station is set to be the second APN-AMBR (70). It should be further noted that, in the first message received by the primary base station, the minimum value is equal to the UE-AMBR of the UE, that is, the sum of the first APN-AMBR and the second APN-AMBR is greater than When the UE-AMBR is used by the UE, the foregoing step 203 specifically includes: calculating a ratio of the first APN-AMBR and the second APN-AMBR to the sum, respectively, and as the first ratio and the second ratio, respectively, the first The ratio and the second ratio are multiplied by the UE-AMBR used by the UE to obtain a product value, and as the first product value and the second product value, the first product value is used as the UE-AMBR used by the primary base station, and the The second product value is used as the UE-AMBR used by the secondary base station.

For a better understanding of the technical solution in the embodiment of the present invention, refer to FIG. 5, which is an example of a method for controlling data transmission rate in carrier aggregation according to an embodiment of the present invention, which is specifically as follows:

In this example, the first message sent by the MME is:

"Min ( UE-AMBR, ( APN-AMBR 1+APN-AMBR2 ) ) 50

APN-AMBR 1 30 session 1 A

APN-AMBR2 70 session2A"

It can be seen from FIG. 5 that the UE-AMBR used by the UE is 50, and the sum of the APN-AMBRs of the two APNs is 100. If the UE-AMBR used by the UE is less than the sum of the APN-AMBRs of the two APNs, the first ratio is calculated as 30: 100, the second ratio is 70:100, so the UE-AMBR used by the primary base station is set to the product value 15 (first product value) of the first ratio and the UE-AMBR used by the UE, and the secondary base station is used. The UE-AMBR is a product value 35 (second product value) of the second ratio to the UE-AMBR used by the UE.

It should be noted that, in the first example, the UE-AMBR used by the primary base station and the UE-AMBR used by the secondary base station are: The available UE-AMBR of the primary base station is greater than or equal to the first APN-AMBR, and the secondary base station The available UE-AMBR is greater than or equal to the second APN-AMBR. Dissatisfied For the above-mentioned preconditions, it is necessary to set the UE-AMBR used by the primary base station and the UE-AMBR used by the secondary base station according to the available UE-AMBR of the primary base station and the available UE-AMBR of the secondary base station, that is, the available UEs of the primary base station- The AMBR is set to the UE-AMBR used by the primary base station, and the available UE-AMBR of the secondary base station is set to the UE-AMBR used by the secondary base station.

Correspondingly, in the second example, when the available UE-AMBR of the primary base station is smaller than the first product value, the available UE-AMBR of the primary base station is set to the UE-AMBR used by the primary base station, and the available UE-AMBR of the secondary base station is smaller than the first When the product value is two, the available UE-AMBR of the secondary base station is set as the UE-AMBR used by the secondary base station. For a better understanding of the technical solution in the embodiment of the present invention, refer to FIG. 6, which is an embodiment of a method for controlling a data transmission rate in carrier aggregation according to an embodiment of the present invention, including:

301. The MME receives a second message sent by the primary base station.

It should be noted that the second message has a service list determined by the primary base station, and the service list includes a service identifier corresponding to the service that the primary base station needs to transmit, and a service identifier corresponding to the service that the secondary base station needs to transmit. The related description of the service list has been described in detail in the previous embodiment, and is not described in detail in this embodiment. For details, refer to the foregoing related content.

The MME determines the first APN-AMBR and the second APN according to the second message, and the mapping relationship between the service identifier and the APN corresponding to the service to be transmitted, and the APN-AMBR of the APN saved by the MME. -AMBR.

It should be noted that the service that needs to be transmitted includes a service that the primary base station needs to transmit and a service that the secondary base station needs to transmit, and the APN includes an APN corresponding to a service that the primary base station needs to transmit, and the secondary base station. The APN corresponding to the service to be transmitted.

303. The MME sets, according to the first APN-AMBR and the second APN-AMBR, a UE-AMBR used by the primary base station and a UE-AMBR used by the secondary base station.

It should be noted that the MME itself also stores the UE-AMBR used by the UE and each APN.

The minimum of the sum of the APN-AMBR values. When the sum of the first APN-AMBR and the second APN-AMBR is less than or equal to the UE-AMBR used by the UE, that is, the minimum value is equal to the first APN-AMBR and the second APN-AMBR. For the sum, step 303 is specifically as follows: setting the first APN-AMBR as the UE-AMBR used by the primary base station, and setting the second APN-AMBR. Set as the UE-AMBR used by the secondary base station. When the sum of the first APN-AMBR and the second APN-AMBR is greater than the UE-AMBR used by the UE, that is, the minimum value is equal to the UE-AMBR value used by the UE, the step 303 specifically includes: separately calculating the first A ratio of the APN-AMBR and the second APN-AMBR to the sum, and as the first ratio and the second ratio, respectively calculating the product values of the first ratio and the second ratio and the UE-AMBR used by the UE, and as a first product value and a second product value; the first product value is used as a UE-AMBR used by the primary base station, and the second product value is used as a UE-AMBR used by the secondary base station.

It should be noted that, in step 303, only the UE-AMBR used by the primary base station is different from the execution entity of the UE-AMBR used by the secondary base station, and the setting is described in detail in the foregoing embodiment. The embodiment will not be described again. For details, please refer to the above related content.

The foregoing embodiment provides a method for controlling a data transmission rate in carrier aggregation, based on a first APN-AMBR of an APN corresponding to a service that the primary base station needs to transmit, and a second APN-AMBR of the APN corresponding to the service that the secondary base station needs to transmit. The UE-AMBR used by the primary base station and the UE-AMBR used by the secondary base station can set the APN of the APN corresponding to the service to be transmitted on the primary base station and the secondary base station. The AMBRs are matched to ensure that the data transmission rate on the primary base station and the secondary base station is optimized, thereby achieving an optimal transmission rate of the entire communication system. In the carrier aggregation between the base stations, there is also a shunt mode, in which the data packet of the service to be transmitted first arrives at the primary base station, and the primary base station decides whether to directly transmit the data packet of the service to the UE, or whether the service is transmitted through the secondary base station. The data packet is transmitted to the UE, that is, in the offload mode, the primary base station can dynamically determine the amount of data to be transmitted to the secondary base station to transmit data. To this end, referring to FIG. 7, an embodiment of the present invention further discloses An embodiment of a method for controlling a data transmission rate in carrier aggregation, the method may be performed by a secondary base station, including:

401. Receive a carrier aggregation data volume allocation request that is sent by the primary base station, and the allocation request includes a size of the primary base station buffered data volume, a data bearer identifier, and a number of member cell S-Cells that need to be added by the secondary base station.

402. Calculate, by the secondary base station, the amount of carrier aggregation data that can be allocated for the cross-base station, including the number of primary cell S-Cells that can be used. 403. The calculated feedback is sent to the primary base station, so that the primary base station performs offloading to the secondary base station according to the foregoing information. For a better understanding of the technical solutions in the embodiments of the present invention, refer to FIG. 8 , which is an embodiment of a method for controlling a data transmission rate in carrier aggregation according to an embodiment of the present invention. The method is performed by a primary base station, and includes:

501. Send a carrier aggregation data quantity allocation request of the cross-base station, where the allocation request includes a size of the primary base station buffered data volume, a data bearer identifier, and a number of member cell S-Cells that need to be added by the secondary base station.

502. Receive feedback information of the secondary base station, where the feedback information indicates the amount of carrier aggregation data that can be allocated by the secondary base station for the cross-base station, including the number of primary cell S-Cells that can be used.

503. Determine, according to the feedback information, an amount of data that is offloaded to the secondary base station.

The foregoing embodiment provides a method for controlling a data transmission rate in carrier aggregation. The primary base station may dynamically according to the amount of carrier aggregation data that can be allocated by the secondary base station and the number of available primary cells that can be used by the secondary base station. Determine the amount of data that is offloaded to the secondary base station to transmit data. Through the above method, the idle resources of the secondary base station can be fully utilized, and the secondary base station is not burdened, and finally the purpose of balancing the network load and improving the utilization of the wireless resources is achieved. In addition, the embodiment of the present application further provides an apparatus for controlling a data transmission rate in carrier aggregation, where the first APN-AMBR of the APN corresponding to the service that the primary base station needs to transmit and the APN corresponding to the service that the secondary base station needs to transmit The two APN-AMBRs, the UE-AMBR used by the primary base station and the UE-AMBR used by the secondary base station, enable the UE-AMBR used by the primary base station and the secondary base station to correspond to the services to be transmitted on the primary base station and the secondary base station. The APN's APN-AMBR is matched to ensure optimal data transmission rates on the primary and secondary base stations, thereby enabling the entire communication system to achieve an optimal transmission rate.

The details are described below separately. Referring to FIG. 9, an embodiment of an apparatus for controlling a data transmission rate in carrier aggregation according to an embodiment of the present invention includes: The determining unit 11 is configured to determine a first APN-AMBR of the APN corresponding to the service that the primary base station needs to transmit, and a second APN-AMBR of the APN corresponding to the service that the secondary base station needs to transmit.

In the LTE system, the services that need to be transmitted are non-guaranteed bit rate non GBR services.

The setting unit 12 is configured to set, according to the first APN-AMBR and the second APN-AMBR, a UE-AMBR used by the primary base station and a UE-AMBR used by the secondary base station. For a better understanding of the technical solution in the embodiments of the present invention, refer to FIG. 10, which is an embodiment of an apparatus for controlling a data transmission rate in carrier aggregation according to an embodiment of the present invention, where the device may be a primary base station, It can be a standalone device attached to the primary base station, including:

The receiving unit 21 is configured to receive a first message sent by the mobility management entity MME.

It should be noted that, the first message includes a mapping relationship between a service identifier corresponding to a service to be transmitted and an APN, and an APN-AMBR of the APN, where the service to be transmitted includes the primary base station that needs to be transmitted. The service and the service that the secondary base station needs to transmit, the APN includes an APN corresponding to the service that the primary base station needs to transmit, and an APN corresponding to the service that the secondary base station needs to transmit.

The determining unit 22 is specifically configured to determine a service list, where the service list includes a service identifier corresponding to the service that the primary base station needs to transmit, and a service identifier corresponding to the service that the secondary base station needs to transmit, according to the first message and the Describe the service list, and determine the first APN-AMBR and the second APN-AMBR.

The setting unit 23 is configured to set, according to the first APN-AMBR and the second APN-AMBR, a UE-AMBR used by the primary base station and a UE-AMBR used by the secondary base station.

It should be further noted that, when the sum of the first APN-AMBR and the second APN-AMBR is less than or equal to the UE-AMBR used by the UE, the setting unit is specifically configured to: set the first APN-AMBR The UE-AMBR used by the primary base station sets the second APN-AMBR as the UE-AMBR used by the secondary base station. When the sum of the first APN-AMBR and the second APN-AMBR is greater than the UE-AMBR used by the UE, the setting unit is specifically configured to:

Obtaining a ratio of the first APN-AMBR to the sum and as a first ratio; acquiring a ratio of the second APN-AMBR to the sum and as a second ratio; acquiring the first ratio and the a first product value of the UE-AMBR used by the UE, and a second product value of the second ratio and the UE-AMBR used by the UE; using the first product value as the UE-AMBR used by the primary base station, The second product value is used as a UE-AMBR used by the secondary base station. For a better understanding of the technical solution in the embodiment of the present invention, refer to FIG. 11 , which is an embodiment of an apparatus for controlling a data transmission rate in carrier aggregation according to an embodiment of the present disclosure, where the device may be an MME, or For independent devices attached to the MME, including:

The receiving unit 31 is configured to receive a second message sent by the primary base station, where the second message carries a service list determined by the primary base station, where the service list includes a service identifier and a service corresponding to the service that the primary base station needs to transmit Describe the service identifier corresponding to the service that the secondary base station needs to transmit;

The determining unit 32 is specifically configured to: determine, according to the second message, the mapping relationship between the service identifier and the APN corresponding to the service that needs to be transmitted, and the APN-AMBR of the APN that is saved by itself, determining the first APN -AMBR and the second APN-AMBR, wherein the service to be transmitted includes a service that the primary base station needs to transmit and a service that the secondary base station needs to transmit, and the APN includes a service that the primary base station needs to transmit The corresponding APN and the APN corresponding to the service that the secondary base station needs to transmit.

The setting unit 33 is configured to set, according to the first APN-AMBR and the second APN-AMBR, a UE-AMBR used by the primary base station and a UE-AMBR used by the secondary base station.

Obtaining a ratio of the first APN-AMBR to the sum and as a first ratio;

Obtaining a ratio of the second APN-AMBR to the sum and as a second ratio;

Obtaining, by the first ratio, a first product value of a UE-AMBR used by the UE, and a second product value of the second ratio and a UE-AMBR used by the UE;

The first product value is used as a UE-AMBR used by the primary base station, and the second product value is used as a UE-AMBR used by the secondary base station. In the carrier aggregation between the base stations, there is also a shunt mode, in which the data packet of the service to be transmitted first arrives at the primary base station, and the primary base station decides whether to directly transmit the data packet of the service to the UE, or whether the service is transmitted through the secondary base station. The data packet is transmitted to the UE, that is, in the split mode, the primary base station can dynamically determine the amount of data to be transmitted to the secondary base station to transmit data. To this end, referring to FIG. 12, an embodiment of the present invention further discloses An embodiment of a device for controlling a data transmission rate in carrier aggregation, which is an apparatus embodiment corresponding to the method for controlling a data transmission rate in carrier aggregation disclosed in FIG. 7, the device comprising:

The request information receiving unit 41 is configured to receive a carrier aggregation data amount allocation request of the cross-base station that is sent by the primary base station, where the allocation request includes a size of the primary base station buffered data volume, a data bearer identifier, and a member cell that needs to be added by the secondary base station. Number of S-Cells;

The calculating unit 42 is configured to calculate a quantity of carrier aggregation data that can be allocated by the secondary base station for the cross-base station, including the number of primary cell S-Cells that can be used;

The feedback unit 43 is configured to feed the calculated feedback to the primary base station, so that the primary base station performs offloading to the secondary base station according to the calculated amount of carrier aggregation data that can be allocated by the secondary base station for the cross-base station. . For a better understanding of the technical solution in the embodiments of the present invention, refer to FIG. 13 , which is an embodiment of an apparatus for controlling data transmission rate in carrier aggregation according to an embodiment of the present invention. A device embodiment for controlling a data transmission rate in carrier aggregation, the device comprising:

The sending unit 51 is configured to send a carrier aggregation data amount allocation request across the base station, where the allocation request includes a size of the buffer data volume of the primary base station and a data bearer identifier;

The feedback information receiving unit 52 is configured to receive feedback information of the secondary base station, where the feedback information indicates the amount of carrier aggregation data that can be allocated by the secondary base station for the cross-base station;

The split data amount determining unit 53 is configured to determine, according to the feedback information, a data amount that is shunted by the secondary base station.

It should be noted that the function implementation of each unit of the foregoing apparatus has been described in detail in the method embodiment, and the device embodiment will not be described in detail. For details, refer to the related method embodiment. Description. In addition, the embodiment of the present application further provides a communication device, which may be a host server including a computing capability, or a personal computer PC, or a portable computer or terminal, etc., and the specific embodiment of the present application is not correct. The specific implementation of the communication device is limited.

Figure 14 is a structural diagram of a communication device of the present application. As shown in FIG. 14, the communication device 700 includes: a processor 710, a communication interface 720, a memory 730, and a bus 740.

The processor 710, the communication interface 720, and the memory 730 complete communication with each other via the bus 740. The processor 710 is configured to execute the program 732.

In particular, program 732 can include program code, the program code including computer operating instructions. The processor 710 may be a central processing unit CPU, or an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application.

The memory 730 is configured to store the program 732. Memory 730 may include high speed RAM memory and may also include non-volatile memory, such as at least one disk storage. The program 732 may specifically include:

And a setting unit, configured to set, according to the first APN-AMBR and the second APN-AMBR, a terminal aggregated maximum bit rate UE-AMBR used by the primary base station and a UE-AMBR used by the secondary base station.

For the specific implementation of each unit in the program 732, refer to the corresponding units in the embodiment shown in FIG. 9 to FIG. 13 , and details are not described herein. The various embodiments in the present specification are described in a progressive manner, and each embodiment focuses on differences from other embodiments, and the same similar parts between the various embodiments may be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is compared Simple, see the method section for details.

A person skilled in the art will further appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in a combination of electronic hardware or electronic hardware and computer software. In order to clearly illustrate the interchangeability of some of the hardware and software, the components and steps of the various examples have been generally described in terms of functions in the above description. Whether these functions are performed in hardware or a combination of hardware and software depends on the specific application and design constraints of the solution. Those skilled in the art should be considered to be outside the scope of the present invention.

The steps of a method or algorithm described in connection with the embodiments disclosed herein can be implemented directly in hardware, a software module executed by a processor, or a combination of both. The software module can be placed in random access memory (RAM), memory, read only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or technical field. Any other form of storage medium known.

The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments are obvious to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded to the broadest scope of the principles and novel features disclosed herein.

Claims

Rights request

1. A method of controlling data transmission rate in carrier aggregation, characterized in that the method includes:

Determine the aggregate maximum bit rate APN-AMBR of the first access point APN corresponding to the service that the primary base station needs to transmit, and the second APN-AMBR of the APN corresponding to the service that the secondary base station needs to transmit;

Based on the first APN-AMBR and the second APN-AMBR, the terminal aggregate maximum bit rate UE-AMBR used by the primary base station and the UE-AMBR used by the secondary base station are set.

2. The method according to claim 1, characterized in that:

The method also includes:

The main base station receives the first message sent by the mobility management entity MME. The first message includes the mapping relationship between the service identifier corresponding to the service that needs to be transmitted and the APN, and the APN-AMBR of the APN, wherein, the service that needs to be transmitted The services include services that the primary base station needs to transmit and services that the secondary base station needs to transmit, and the APN includes the APN corresponding to the services that the primary base station needs to transmit and the APN that corresponds to the services that the secondary base station needs to transmit;

Determining the first APN-AMBR of the APN corresponding to the service that the primary base station needs to transmit and the second APN-AMBR of the APN corresponding to the service that the secondary base station needs to transmit specifically include:

The main base station determines the first APN-AMBR and the second APN-AMBR according to the first message and a service list. The service list includes the data that the main base station needs to transmit determined by the main base station. The service identifier corresponding to the service and the service identifier corresponding to the service that the secondary base station needs to transmit;

The step of setting the UE-AMBR used by the primary base station and the UE-AMBR used by the secondary base station based on the first APN-AMBR and the second APN-AMBR specifically includes:

The main base station sets the UE-AMBR used by the main base station and the UE-AMBR used by the secondary base station based on the first APN-AMBR and the second APN-AMBR.

3. The method according to claim 1, characterized in that:

The method also includes:

The MME receives the second message sent by the main base station. The second message has a service list determined by the main base station. The service list includes a service identifier corresponding to the service that the main base station needs to transmit. The service identifier corresponding to the service that the secondary base station needs to transmit;

The MME determines the first APN-AMBR and the first APN-AMBR according to the second message, the mapping relationship between the service identifier corresponding to the service that needs to be transmitted and the APN stored in the MME, and the APN-AMBR of the APN stored in the MME. The second APN-AMBR, wherein the services that need to be transmitted include the services that the primary base station needs to transmit and the services that the secondary base station needs to transmit, and the APN includes the APN corresponding to the services that the primary base station needs to transmit and the services that the secondary base station needs to transmit. Describe the APN corresponding to the services that the secondary base station needs to transmit;

The MME sets the UE-AMBR used by the primary base station and the UE-AMBR used by the secondary base station based on the first APN-AMBR and the second APN-AMBR.

4. The method according to any one of claims 1 to 3, characterized in that when the sum of the first APN-AMBR and the second APN-AMBR is less than or equal to the value used by the UE

When UE-AMBR is used, setting the UE-AMBR used by the primary base station and the UE-AMBR used by the secondary base station based on the first APN-AMBR and the second APN-AMBR specifically includes:

Set the first APN-AMBR of the APN corresponding to the service that the primary base station needs to transmit to the UE-AMBR used by the primary base station, and set the second APN-AMBR of the APN corresponding to the service that the secondary base station needs to transmit. Set to the UE-AMBR used by the secondary base station.

5. The method according to any one of claims 1 to 3, characterized in that when the sum of the first APN-AMBR and the second APN-AMBR is greater than the UE-AMBR used by the UE, the The first APN-AMBR and the second APN-AMBR set the UE-AMBR used by the primary base station and the UE-AMBR used by the secondary base station, specifically including:

Obtain the proportion of the first APN-AMBR in the total and use the proportion as the first proportion;

Obtain the proportion of the second APN-AMBR to the total and use the proportion as the second proportion;

Obtain the first product value of the first ratio and the UE-AMBR used by the UE, and the first The second product value of the second ratio and the UE-AMBR used by the UE;

The first product value is used as the UE-AMBR used by the primary base station, and the second product value is used as the UE-AMBR used by the secondary base station.

6. A device for controlling data transmission rate in carrier aggregation, characterized in that the device includes:

Determining unit, used to determine the first access point aggregate maximum bit rate APN-AMBR of the access point APN corresponding to the service that the primary base station needs to transmit, and the second APN-AMBR of the APN corresponding to the service that the secondary base station needs to transmit;

A setting unit configured to set the terminal aggregate maximum bit rate UE-AMBR used by the primary base station and the UE-AMBR used by the secondary base station based on the first APN-AMBR and the second APN-AMBR.

7. The device according to claim 6, characterized in that:

The device also includes:

The receiving unit is configured to receive the first message sent by the mobility management entity MME, where the first message includes the mapping relationship between the service identifier corresponding to the service that needs to be transmitted and the APN, and the APN-AMBR of the APN, wherein, the need The transmitted services include the services that the primary base station needs to transmit and the secondary base station that needs to transmit. The APN includes the APN corresponding to the services that the primary base station needs to transmit and the APN that corresponds to the services that the secondary base station needs to transmit;

The determination unit is specifically used for:

Determine a service list, the service list including a service identifier corresponding to the service that the primary base station needs to transmit and a service identifier corresponding to the service that the secondary base station needs to transmit;

The first APN-AMBR and the second APN-AMBR are determined according to the first message and the service list.

8. The device according to claim 6, characterized in that:

The device also includes:

A receiving unit, configured to receive a second message sent by the master base station. The second message carries a service list determined by the master base station. The service list includes a service identifier corresponding to the service that the master base station needs to transmit and the service list. The service identifier corresponding to the service that the secondary base station needs to transmit;

The determination unit is specifically used for: According to the second message, the mapping relationship between the service identifier corresponding to the service that needs to be transmitted and the APN saved by the device, and the APN-AMBR of the APN saved by the device, the first APN-AMBR and the first APN-AMBR are determined. The second APN-AMBR, wherein the services that need to be transmitted include the services that the primary base station needs to transmit and the services that the secondary base station needs to transmit, and the APN includes the APN corresponding to the services that the primary base station needs to transmit and The APN corresponding to the service that the secondary base station needs to transmit.

9. The apparatus according to any one of claims 6 to 8, characterized in that when the sum of the first APN-AMBR and the second APN-AMBR is less than or equal to the UE-AMBR used by the UE, the The above setting unit is specifically used for:

The first APN-AMBR is set to the UE-AMBR used by the primary base station, and the second APN-AMBR is set to the UE-AMBR used by the secondary base station.

10. The apparatus according to any one of claims 6 to 8, wherein when the sum of the first APN-AMBR and the second APN-AMBR is greater than the UE-AMBR used by the UE, the setting The unit is specifically used for:

Obtain the proportion of the first APN-AMBR to the total and use the proportion as the first proportion;

Obtain the first product value of the first ratio and the UE-AMBR used by the UE, and the second product value of the second ratio and the UE-AMBR used by the UE;

11. The device according to any one of claims 6, 7, 9 and 10, characterized in that: the device is the main base station.

12. The device according to any one of claims 6 and 8-10, characterized in that:

The device is the MME.