CN105101436B

CN105101436B - A kind of carrier activation method of LTE-A

Info

Publication number: CN105101436B
Application number: CN201410191900.9A
Authority: CN
Inventors: 朱雅琼
Original assignee: Putian Information Technology Co Ltd
Current assignee: Putian Information Technology Co Ltd
Priority date: 2014-05-08
Filing date: 2014-05-08
Publication date: 2018-11-23
Anticipated expiration: 2034-05-08
Also published as: CN105101436A

Abstract

This application discloses the carrier activation methods of LTE-A a kind of, including：For non-guaranteed bit rate (Non-GBR) business of user, the arrival rate of base station side periodic statistics high level data；Judge whether the high level data arrival rate of the Non-GBR business is greater than preset threshold value, if so, the configured unactivated available secondary carriers of selection are activated.By applying application scheme, it is ensured that the qos requirement of the Non-GBR business in network.

Description

A kind of carrier activation method of LTE-A

Technical field

This application involves a kind of carrier activation methods of wireless communication technology field more particularly to LTE-A.

Background technique

In long term evolution (Long Term Evolution, LTE) system, the maximum transmission bandwidth that system is supported is 20MHz.To provide higher data rate, advanced long-term evolution system (Long Term Evolution to mobile subscriber Advance, LTE-A) propose carrier aggregation technology (Carrier Aggregation, CA), the purpose is to for mutually should be able to The user equipment (User Equipment, UE) of power provides bigger bandwidth, to improve the peak rate of user equipment.CA is by two Or more component carriers (Component Carriers, CC) are aggregating support and are greater than 20MHz, maximum is no more than The transmission bandwidth of 100MHz.Lte-a system using carrier aggregation technology is a kind of multicarrier system.

CC represents a up-link carrier or a descending carrier, and a up-link carrier and a descending carrier pass through certain Corresponding relationship, which is associated, just constitutes a cell (Cell), so carrier wave polymerization is also referred to as cell aggregation (Cell Aggregation).Component carrier is divided into principal component carrier wave (Primary CC, PCC) and auxiliary component carrier (Secondary CC, SCC) in order to being managed to component carrier.The effect of downlink PCC includes establishing wireless heterogeneous networks (RRC) signaling company It connects, Non-Access Stratum (Non-Access Stratum, NAS) mobility and the input as security parameters etc.；Uplink PCC is used for Send the control information of physical layer.Downlink PCC and uplink PCC be associated constitute main plot (Primary Cell, PCell), downlink SCC and optional uplink SCC, which is associated, constitutes secondary cell (Secondary Cell, SCell).

After introducing carrier aggregation technology, base station (evolved NodeB, eNB) can be user equipment (UE) configuration at most 5 A cell.After UE establishes business on one cell, because UE service traffics increase or wireless resource management based on base station (Radio Resource Management, RRM) demand, base station can pass through wireless heterogeneous networks (Radio Resource Control, RRC) signaling is that UE increases new cell configuration, specifically include configure newly-increased cell uplink and downlink carrier wave it is relevant Configuration information.On the contrary, being perhaps currently configured because UE service traffics are reduced and being deteriorated or be based on to the cell signal quality of UE The RRM of base station is managed, and base station can delete the cell that be allocated to UE by RRC signaling, specifically include delete cell it is upper, The configuration information of descending carrier.Process that is added above, deleting cell configuration can occur simultaneously.

It is that UE configures multiple cells above by RRC signaling, i.e. UE works over a number of carriers, and UE needs super using bandwidth It crosses the twoway radio of 20MHz or uses multiple twoway radios, the battery power consumption of UE will be greatly increased.It examines The burst feature of worry business is happening suddenly although UE work may at most use the bandwidth of up to 5 carrier waves in flank speed Gap, the practical business flow of UE seldom or close to zero, at this time if UE also continue receiving over a number of carriers/send number According to, it will lead to higher power overhead.In order to extend the working time of UE, need to close the transceiving of unnecessary unlatching Equipment is to reduce unnecessary battery consumption.On the basis of above-mentioned increase/reduction cell configuration (carrier wave configuration), carrier wave is introduced Activation/deactivation mechanism.Descending carrier and up-link carrier in one cell can be with discrete actuation/deactivations.Base station passes through aobvious Formula media access control (Medium Access Control, MAC) order notice is activated/is gone by the implicit rule of agreement Activate secondary carrier, in order to guarantee communication continuity, main carrier once configure i.e. activate, i.e., activation/deactivation mechanism just for Secondary carrier executes.

In order to achieve the purpose that power saving, in the downstream direction, UE only carries out data receiver on the descending carrier of activation, such as The monitoring of Physical Downlink Control Channel (Physical Downlink Control Channel, PDCCH), under deactivated On row carrier wave, UE is not listening to PDCCH channel, does not also receive Physical Downlink Shared Channel (Physical Downlink Shared Channel, PDSCH) on data；In the upstream direction, UE only sends data on the up-link carrier of activation, deactivated On up-link carrier, UE stops sending upstream data, including stops sending uplink reference signals (Sounding Reference Symbols, SRS), it stops on Physical Uplink Control Channel (Physical Uplink Control Channel, PUCCH) Data are sent, stops on Physical Uplink Shared Channel (Physical Uplink Shared Channel, PUSCH) and sends number According to etc..

In current lte-a system agreement, there is no concrete regulation for the principle of carrier activation, it is general to consider each industry of user The qos requirement of business.For guaranteeing bit rate (Guaranteed Bit Rate, GBR) business, it can be measured and eated dishes without rice or wine averagely The gap of rate and the guaranteed rate of requirement can require to activate when existing activation carrier resource is insufficient for GBR requirement New secondary carrier.And because Non-GBR business itself not to the requirement of rate, lacks activation principle to guarantee each Non- The available required service of GBR traffic.

Summary of the invention

This application provides the carrier activation methods of LTE-A a kind of, it is ensured that the QoS of the Non-GBR business in network is wanted It asks.

The carrier activation method of LTE-A provided by the embodiments of the present application a kind of, including：

For the non-guaranteed bit rate Non-GBR business of user, the arrival speed of base station side periodic statistics high level data Rate；

Judge whether the high level data arrival rate of the Non-GBR business is greater than preset threshold value, if so, choosing Configured unactivated available secondary carriers are selected to be activated.

Preferably, this method further comprises：

For the guarantee bit rate GBR traffic of user, in the sky of the media access control MAC layer periodic statistics business Mouth Mean Speed；

Whether judgement Mean Speed of eating dishes without rice or wine reaches the guarantee bit rate GBR that the GBR traffic requires, if not up to, Configured unactivated available secondary carriers are selected to be activated.

Preferably, the high-rise GPRS Tunnel Protocol for base station user level.

As can be seen from the above technical solutions, when the high level data arrival rate of Non-GBR business is lower, activation is available Secondary carrier meets its qos requirement；Further for GBR traffic, when Mean Speed of eating dishes without rice or wine not up to requires, activation can use auxiliary load Wave；To maximize guarantee throughput of system as far as possible on the basis of each business obtains certain service.

Detailed description of the invention

Fig. 1 is the carrier activation method flow schematic diagram of LTE-A provided by the embodiments of the present application.

Specific embodiment

The carrier activation method of LTE-A provided by the present application a kind of, design philosophy are：Only has Non-GBR for user When business, the high level data arrival rate obtained according to statistics is used as foundation to be judged, selects configured unactivated available Secondary carrier is activated；When only having GBR traffic for user, judged according to whether GBR rate meets, selection is configured not The available secondary carriers of activation are activated；And when having the more a business of GBR, Non-GBR simultaneously for user, if reaching two kinds not One of activation condition of business of same type, so that it may configured unactivated available secondary carriers be selected to be activated.

To keep the technical principle, feature and technical effect of technical scheme clearer, below in conjunction with specific reality Example is applied technical scheme is described in detail.

The carrier activation method flow of LTE-A provided by the embodiments of the present application is as shown in Figure 1, include the following steps：

Step 101：For the Non-GBR business of user, base station counts the arrival rate of high level data；For user's GBR traffic counts the Mean Speed of eating dishes without rice or wine of the business in media access control (MAC) layer.Preferably, described high-rise for base station use The GPRS Tunnel Protocol (GTP-U) of family level.

Step 102：The last carrier activation of judgement distance judges whether to reach scheduled duration, if so, executing step 103. Otherwise this step is repeated.

Step 103：Judge whether to have traversed all business of the user；If so, return step 101；Otherwise, selection should Next business of user executes step 104 as current business.

Step 104：The type of service for judging current business is Non-GBR business or GBR traffic, if Non-GBR industry Business executes step 105, if GBR traffic executes step 106.

Step 105：Judge whether current business high level data arrival rate is greater than preset threshold value, if so, Think to meet carrier activation condition, executes step 107；Otherwise return step 103.

Step 106：Judge whether current business Mean Speed of eating dishes without rice or wine reaches the guarantee bit rate GBR of requirement, if not Reach, thinks to meet carrier activation condition, execute step 107；If reached, return step 103.

Step 107：Configured unactivated available secondary carriers are selected to be activated, return step 101.

The foregoing is merely the preferred embodiments of the application, not to limit the protection scope of the application, it is all Within the spirit and principle of technical scheme, any modification, equivalent substitution, improvement and etc. done should be included in this Shen Within the scope of please protecting.

Claims

1. the carrier activation method of LTE-A a kind of, which is characterized in that including：

For the non-guaranteed bit rate Non-GBR business of user, the arrival rate of base station side periodic statistics high level data；

Judge whether the high level data arrival rate of the Non-GBR business is greater than preset threshold value, if so, selection is Unactivated available secondary carriers are configured to be activated；

For the guarantee bit rate GBR traffic of user, eat dishes without rice or wine to put down in the media access control MAC layer periodic statistics business Equal rate；

Whether judgement Mean Speed of eating dishes without rice or wine reaches the guarantee bit rate GBR that the GBR traffic requires, if not up to, selection Configured unactivated available secondary carriers are activated.

2. the method according to claim 1, wherein the high-rise tunnel GPRS for base station user level is assisted View.