CN101018367A - Cell downlink access permission method, system and network side device - Google Patents

Cell downlink access permission method, system and network side device Download PDF

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Publication number
CN101018367A
CN101018367A CNA2007100845718A CN200710084571A CN101018367A CN 101018367 A CN101018367 A CN 101018367A CN A2007100845718 A CNA2007100845718 A CN A2007100845718A CN 200710084571 A CN200710084571 A CN 200710084571A CN 101018367 A CN101018367 A CN 101018367A
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hsdpa
cell
access request
downlink
total
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CN100455060C (en
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陆干忠
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to PCT/CN2007/071082 priority patent/WO2008098458A1/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

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  • Computer Networks & Wireless Communication (AREA)
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  • Mobile Radio Communication Systems (AREA)

Abstract

The disclosed subzone down admittance method and system with NS device comprises: when receiving access request from UE, the NS handles as: if UE loaded on DCH channel, takes admittance decision according to down total emission power; if UE loaded on DCH channel, first decides whether the obtained rate sum of all HSDPA business in current HSDPA channel and the guaranteed rate sum meet pre-set condition, yes to admit the request directly; or else, decides the admittance combined with down total emission power. It benefits to control admittance efficiently.

Description

Cell downlink access method, system and network side equipment
Technical Field
The invention relates to the field of wireless communication, in particular to a cell downlink admission technology.
Background
With the increasing progress of mobile communication technology, the number of mobile users is increasing dramatically, which puts new pressure on the mobile communication system, and especially puts higher requirements on access control technology in the mobile communication system. An access control technology is a control method for realizing the access of User Equipment (UE) to a radio channel in a mobile communication system.
A brief description of an access control technique in a mobile communication system is provided below. In a mobile communication system, when a UE moves in each neighboring cell, after entering a cell and completing location registration, the UE camps in the cell and enters an idle state, which is also referred to as a current cell of the UE. In the idle state, if the UE performs a cell location update procedure, or needs to respond to a page from a cell, or needs to establish a call with another user, including a service request, a short message transmission request, and the like, the UE sends an access request to the current cell base station. It should be noted that the random access procedure is initiated by the UE. And the UE sends an access request to the cell base station on the random access channel to perform access probing. When the network side receives the access request of the UE, the network side returns a channel allocation message to the UE on a common channel, and then the UE and the base station perform data interaction on the allocated specific channel. It should be further noted that the random access procedure initiated by the UE is completed according to the access resource of the base station of the current cell and according to a specific algorithm. The UE selects an access time slot from available access resources, the selection is random, and then after the base station receives an access probe of the UE, the cell base station sends an access indication message to the UE to indicate whether the current UE is successfully accessed. If the random access is unsuccessful, the UE cannot perform data interaction with the current cell and cannot complete the function of conversation or data transmission.
Since radio resources are invaluable in a wireless communication system, admission control is required for an access request initiated by a UE, so as to guarantee the quality of service of an existing user while serving more users.
Admission control for a UE requesting access is generally divided into uplink admission control and downlink admission control. And the downlink admission control for the UE is usually performed based on the total downlink transmit Power (TCP), i.e. if the total downlink transmit Power of the cell exceeds a certain threshold, the access request of the new UE is rejected, otherwise the UE is admitted.
The following briefly introduces the downlink admission control for new UE in the prior art.
Suppose the current downlink total transmitting power of the cell is PtotalIf it is predicted that the downlink transmission power will increase by Δ P after the new UE is admitted in some way, then if: ptotal+ΔP<Thd*PmaxThen the access request of the new UE is admitted; otherwise, rejecting the access request of the new UE. Wherein, PmaxThd is a set threshold factor, between 0 and 1, for the maximum transmit power of the cell.
In the process of implementing the invention, the inventor finds that at least the following problems exist in the prior art: for a High Speed Downlink Packet Access (HSDPA) cell, Access of the UE is limited to a certain extent. This is because the solution is considered from the point of view of the downlink total transmission power of the cell, and does not consider the satisfaction condition of the existing users in the HSDPA cell, so that the existing users in the system may all obtain the ultra-satisfactory service, but the access request of the UE of the new user is rejected.
Disclosure of Invention
The main technical problem to be solved by the embodiments of the present invention is to provide a method, a system and a network side device for cell downlink admission, so that the downlink admission of an HSDPA cell can be controlled more effectively.
In order to solve the above technical problem, an embodiment of the present invention provides a cell downlink admission method, including the following steps:
when a network side receives a high-speed downlink packet access (HSDPA) access request of User Equipment (UE), if the sum of the rates obtained by HSDPA services on all current HSDPA channels and the sum of the guaranteed rates of the HSDPA services on all current HSDPA channels meet a preset condition, the access request of the UE is directly permitted.
The embodiment of the present invention further provides a network side device, including:
a receiving module, configured to receive an access request of a UE;
a judging module, configured to judge whether a sum of rates obtained by HSDPA services on all current HSDPA channels and a sum of guaranteed rates of the HSDPA services on all current HSDPA channels satisfy a predetermined condition when the receiving module receives the HSDPA access request; and
and the admission decision module is used for directly admitting the access request of the UE when the judgment module judges that the preset condition is met.
The embodiment of the invention also provides a cell downlink admission system, which comprises the network side equipment.
The implementation mode of the invention has the main effects that:
in the HSDPA cell, the sum of the speeds obtained by the HSDPA services on all current HSDPA channels is the sum of the current speeds of all users receiving the HSDPA services; the sum of the guaranteed rates of the HSDPA service on all the HSDPA channels at present is the sum of the guaranteed rates of all users receiving the HSDPA service. The satisfaction degree of the existing HSDPA user can be embodied by judging the relation between the obtained sum of the speeds and the sum of the guaranteed speeds, namely judging the relation between the current sum of the speeds of the existing user and the sum of the guaranteed speeds of the existing user, therefore, the relation between the current sum of the speeds and the sum of the guaranteed speeds can be used as the sufficient condition for the admission of the new HSDPA user, and the new UE can be directly admitted under the satisfied condition of the existing HSDPA user. The condition that the access request of new UE is rejected when the existing users in the system obtain the ultra-satisfactory service is avoided, so that the downlink access of the HSDPA cell can be more effectively controlled, the access success rate of the UE is improved, and the performance of the whole network is improved.
Drawings
Fig. 1 is a flowchart of an admission method of a non-HSDPA access request in a cell downlink admission method according to a first embodiment of the present invention;
fig. 2 is a flowchart of an admission method of an HSDPA access request in a cell downlink admission method according to a first embodiment of the present invention;
fig. 3 is a flowchart of an admission method of an HSDPA real-time service access request in a cell downlink admission method according to a second embodiment of the present invention;
fig. 4 is a flowchart of an admission method of an HSDPA BE service access request in a cell downlink admission method according to a second embodiment of the present invention;
fig. 5 is a diagram of a downlink admission system of a cell according to a third embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.
A first embodiment of the present invention relates to a cell downlink admission method, in this embodiment, access requests of UEs are distinguished, and admission conditions of non-HSDPA access requests and HSDPA access requests are individually controlled, and specific flows are shown in fig. 1 and fig. 2, respectively.
Fig. 1 is a flowchart of an admission method of a non-HSDPA access request, i.e., a Dedicated Channel (DCH) access request, in an HSDPA cell.
In step 110, when the network side receives a non-HSDPA access request from the UE, it is determined whether the downlink non-HSDPA power meets the requirement.
Specifically, the network side judges the total transmitting power P of all current non-HSDPA channels of the cellnon-hsdpaWhether the formula is satisfied: pnon-hsdpa+ΔP<Thdnon-hsdpa*PmaxWhere Δ P is the increased downlink transmit power after admission to the UE, PmaxIs the maximum downlink transmit power, Thd, of the cellnon-hsdpaA threshold set for non-HSDPA traffic. If not, it indicates that the total transmission power of all the current non-HSDPA channels of the cell will not meet the requirement after the UE is admitted, so the step 140 is directly entered to reject the access request of the UE; if this formula is satisfied, it indicates that the total transmit power of all non-HSDPA channels will still satisfy the requirements after admission to the UE, and step 120 is entered.
In step 120, the network side determines whether the current downlink total transmit power of the cell meets the requirement.
In particular toThe network side judges the current downlink total transmitting power P of the celltotalWhether the formula is satisfied: ptotal+ΔP<Thd*PmaxWhere Δ P is the increased downlink transmit power after admission to the UE, PmaxThd is a set threshold factor, which is between 0 and 1, for the maximum downlink transmit power of the cell. If the formula is satisfied, it indicates that the current downlink total transmission power of the cell will still satisfy the requirement after the UE is admitted, so step 130 is entered to admit the access request of the UE; if not, it indicates that the current downlink total transmission power of the cell will not meet the requirement after the UE is admitted, so step 140 is entered to reject the access request of the UE, so as to avoid affecting the service quality of the existing user.
Because the HSDPA cell has both HSDPA channel and DCH channel, the network side judges the current downlink total transmitting power P of the cell for the non-HSDPA access request of the UEtotalBefore the condition is satisfied, the total transmitting power P of all current non-HSDPA channels in the cell is judgednon-hsdpaWhether a certain condition is met or not, so that the downlink access of the HSDPA cell can be more effectively controlled by considering not only the downlink total transmitting power of the system but also the total transmitting power of the non-HSDPA service in the process of power resource access, and the performance of the whole network is improved.
Fig. 2 is a flow chart of an admission method of an HSDPA access request in an HSDPA cell.
In step 210, when receiving an HSDPA access request from the UE, the network side determines whether the service quality of the existing HSDPA service is satisfied.
Specifically, when a network side receives an HSDPA real-time service (e.g., streaming service) access request or an HSDPA Best Effort (Best Effort, abbreviated as "BE") service access request, it is determined whether a sum of rates obtained by all HSDPA services on all current HSDPA channels and a sum of guaranteed rates of all HSDPA services satisfy a formula: sigma Vi>ThdRate factor*∑GiWherein, sigma ViFor all channels of the current HSDPA channelSum of rates, SIG G, obtained with HSDPA servicesiFor the sum of guaranteed rates of all HSDPA services, ThdRate factorTo guarantee a scaling factor for the rate. If the formula is satisfied, it indicates that the current HSDPA user has been satisfactorily served, and therefore, the process proceeds directly to step 240 to grant the access request to the UE.
In the HSDPA cell, the satisfaction degree of the existing HSDPA user can be reflected by the relation between the sum of the current speed of the existing user and the sum of the guaranteed speed of the existing user, so the relation between the sum of the current speed and the sum of the guaranteed speed can be used as a sufficient condition for the admission of the new HSDPA user, and the new UE can be directly admitted under the satisfied condition of the existing HSDPA user. The condition that the access request of new UE is rejected when the existing users in the system obtain the ultra-satisfactory service is avoided, so that the downlink access of the HSDPA cell can be more effectively controlled, the access success rate of the UE is improved, and the performance of the whole network is improved.
If the sum of the rates obtained by all the HSDPA services on all the current HSDPA channels and the sum of the guaranteed rates of all the HSDPA services do not satisfy the formula: sigma Vi>ThdRate factor*∑GiStep 220 is entered. In step 220, the network side determines the total transmitting power ∑ P of all HSDPA channels in the cell currentlyiWhether the formula is satisfied: sigma Pi+AP<Thdhsdpa*Pmax-hsdpaWherein P isiΔ P is the increased downlink transmit power after admission to the UE, P, to satisfy the power required for guaranteed rates for all HSDPA services on an HSDPA channelmax-hsdpaMaximum available transmit power, Thd, for the HSDPA channel of a cellhsdpaA threshold set for HSDPA service. If not, it indicates that the total transmitting power of all current HSDPA channels in the cell will not meet the requirement after the UE is admitted, therefore, the step 250 is directly entered to reject the access request of the UE; if this formula is satisfied, it indicates that the total transmit power of all HSDPA channels will still satisfy the requirements after admitting the UE, and step 230 is entered.
In step 230, the network side determines whether the current downlink total transmit power of the cell meets the requirement. Specifically, the network side judges the current downlink total transmitting power P of the celltotalWhether the formula is satisfied: ptotal+ΔP<Thd*PmaxWhere Δ P is the increased downlink transmit power after admission to the UE, PmaxThd is a set threshold factor, which is between 0 and 1, for the maximum downlink transmit power of the cell. If the formula is satisfied, it indicates that the current downlink total transmission power of the cell will still satisfy the requirement after the UE is admitted, so step 240 is entered to admit the access request of the UE; if not, it indicates that the current downlink total transmission power of the cell will not meet the requirement after the UE is admitted, so step 250 is entered to reject the access request of the UE, so as to avoid affecting the service quality of the existing user.
It is easy to find that when the sum of the rates obtained by all the HSDPA services on all the HSDPA channels and the sum of the guaranteed rates of all the HSDPA services do not satisfy the predetermined condition, it is possible to judge whether to admit the UE by combining the total downlink transmission power of the cell, thereby further improving the cell downlink admission method, enabling the downlink admission of the HSDPA cell to be more effectively controlled, and thus improving the performance of the entire network.
Moreover, the network side judges the current downlink total transmitting power P of the celltotalBefore the condition is met, whether the total transmitting power of all the HSDPA channels in the cell meets a certain condition is judged, so that the downlink access of the HSDPA cell can be more effectively controlled by considering not only the downlink total transmitting power of the system but also the total transmitting power of the HSDPA service in the process of power resource access.
It should be noted that, in this embodiment, the sum of the rates obtained by all the HSDPA services on all the current HSDPA channels and the sum of the guaranteed rates of all the HSDPA services may also be Σ Vi>ThdRate factor*∑Gi+ Δ, where, Σ ViFor all current HSDPA messagesSum of the rates, SIG G, obtained for all HSDPA services on the channeliFor the sum of guaranteed rates of all HSDPA services, ThdRate factorFor the rate-guaranteed scaling factor, Δ may be at least a value that needs to be satisfied by the sum of the rates obtained for all HSDPA services currently on all HSDPA channels to avoid the case where there is no rate guaranteed, ThdRate factor*∑Gi=0,∑ViMust be greater than ThdRate factor*∑GiAnd when the user equipment receives the HSDPA access request of the UE, unconditionally admitting the HSDPA access request. The formula can also reflect the satisfaction degree of the existing HSDPA users, so the formula can be used as a sufficient condition for the admission of the new HSDPA users, and the condition that the access request of the new UE is rejected when the existing users in the system obtain the ultra-satisfactory service is avoided, so the downlink admission of the HSDPA cell can be more effectively controlled, the access success rate of the UE is improved, and the performance of the whole network is improved.
A second embodiment of the present invention relates to a cell downlink admission method, which is substantially the same as the first embodiment, except that in the first embodiment, it does not distinguish whether the access request is an HSDPA real-time service access request or an HSDPA BE service access request for HSDPA access request, but in the present embodiment, the HSDPA access request is further distinguished as an HSDPA real-time service access request (e.g., an HSDPA streaming service access request) and an HSDPA BE service access request, and corresponding admission flows are respectively shown in fig. 3 and fig. 4.
Fig. 3 is a flowchart of an admission method for an HSDPA real-time service access request in an HSDPA cell. In step 310, when receiving an HSDPA real-time service access request from the UE, the network side determines whether the service quality of the existing HSDPA real-time service is satisfied.
Specifically, when a network side receives an HSDPA real-time service access request of a UE, it is determined whether a sum of rates obtained by HSDPA real-time services on all current HSDPA channels and a sum of guaranteed rates of the HSDPA real-time services satisfy a formula: sigma Vi>ThdRate factor*∑GiWherein, sigmaViSum of the rates, SIG G, obtained for HSDPA real-time traffic on all current HSDPA channelsiFor the sum of guaranteed rates of HSDPA real-time traffic, ThdRate factorA scaling factor for the guaranteed rate for HSDPA real-time services. If the formula is satisfied, it indicates that the current HSDPA real-time service user has been satisfactorily served, and therefore, the step 340 is directly entered to grant the access request of the UE.
Steps 320 to 350 are the same as steps 220 to 250, respectively, and are not described herein again.
Fig. 4 is a flowchart of an admission method for an HSDPA be service access request in an HSDPA cell. In step 410, when receiving the HSDPA BE service access request from the UE, the network side determines whether the service quality of the existing HSDPA BE service is satisfied.
Specifically, when a network side receives an HSDPA BE service access request of UE, whether the sum of the rates obtained by the HSDPA BE services on all current HSDPA channels and the sum of the guaranteed rates of the HSDPA BE services meet a formula is judged: sigma Vi>ThdRate factor*∑GiWherein, sigma ViSum of rates, SIG G, obtained for HSDPA BE traffic on all current HSDPA channelsiFor the sum of guaranteed rates of HSDPA BE traffic, ThdRate factorAnd ensuring the rate scale factor for HSDPABE service. If the formula is satisfied, it indicates that the current HSDPA BE service user has been satisfactorily served, and therefore, step 440 is entered directly to grant the access request of the UE.
Steps 420 to 450 are the same as steps 220 to 250, respectively, and are not described herein again.
Since different types of HSDPA services have different requirements for quality of service, different user satisfaction can be set for different types of HSDPA services by distinguishing the HSDPA services. For example, the value set for the scaling factor for the HSDPA real-time service guaranteed rate is higher than the value set for the scaling factor for the HSDPA abe service guaranteed rate, so that when the satisfaction of the existing HSDPA real-time service user is measured, a higher requirement is met, the HSDPA real-time service user is guaranteed, and a higher satisfaction can be obtained.
The method for accessing a non-HSDPA access request in this embodiment is completely the same as that in the first embodiment, and is not described herein again.
It should be noted that, although in the present embodiment, the total transmission power ∑ P of all HSDPA channels currently in the cell is determinediWhether the formula is satisfied: sigma Pi+ΔP<Thdhsdpa*Pmax-hsdpaWhen there is no differentiation between different types of HSDPA traffic, i.e. PiStill the power, Thd, required to meet the guaranteed rate for all HSDPA traffic on one HSDPA channelhsdpaIt is still the threshold set for HSDPA traffic. However, in practical application, the total transmission power of all the HSDPA channels may BE divided into the total transmission power of the HSDPA real-time services of all the HSDPA channels and the total transmission power of the HSDPA BE services of all the HSDPA channels.
For example, for the HSDPA real-time service, the total transmit power ∑ P of the HSDPA real-time services of all HSDPA channels in the cell at present is determinediWhether the formula is satisfied: sigma Pi+ΔP<Thdhsdpa*Pmax-hsdpa,PiTo meet the power required for guaranteed rate for HSDPA real-time traffic on one HSDPA channel, ThdhsdpaAnd if the threshold is set for the HSDPA real-time service and the formula is met, judging the downlink total power of the cell.
For HSDPA BE business, judging total transmitting power sigma P of HSDPA BE business of all HSDPA channels in the current celliWhether the formula is satisfied: sigma Pi+ΔP<Thdhsdpo*Pmax-hsdpa,PiTo meet the power required for guaranteed rates for HSDPA BE services on one HSDPA channel, ThdhsdpaThe threshold set for HSDPA BE service, when meeting the requirement, further judging the total transmitting power sigma P of HSDPA real-time service of all HSDPA channels in the current celliWhether the formula is satisfied: sigma Pi+ΔP<Thdhsdpa*Pmax-hsdpa,PiTo meet the power required for guaranteed rate for HSDPA real-time traffic on one HSDPA channel, ThdhsdpaAnd when the thresholds set for the HSDPA real-time services all meet the requirements, judging the downlink total power of the cell. Further ensuring the users of HSDPA service with higher service quality requirement and obtaining higher satisfaction.
A third embodiment of the present invention relates to a cell downlink admission system, as shown in fig. 5, including a UE and a network side device. Wherein, the network side equipment includes: a receiving module, configured to receive an access request of a UE; a judging module, configured to judge whether a sum of rates obtained by HSDPA services on all current HSDPA channels and a sum of guaranteed rates of the HSDPA services on all current HSDPA channels satisfy a predetermined condition when the receiving module receives an HSDPA access request of the UE; and an admission decision module for directly admitting the access request of the UE when the judgment module judges that the predetermined condition is satisfied.
The predetermined condition is ∑ Vi>ThdRate factor*∑GiWherein, sigma ViSum of the rates, SIG G, obtained for HSDPA traffic on all current HSDPA channelsiFor the sum of the guaranteed rates, Thd, of the HSDPA traffic on all current HSDPA channelsRate factorTo guarantee a scaling factor for the rate.
Because the embodiment reflects the satisfaction degree of the existing HSDPA user through the relation between the current speed sum of the existing user and the guaranteed speed sum of the existing user, and takes the relation between the current speed sum and the guaranteed speed sum as the sufficient condition for the admission of the new HSDPA user, the condition that the access request of the new UE is rejected when the existing users in the system obtain the ultra-satisfactory service is avoided, the downlink admission of the HSDPA cell can be more effectively controlled, the access success rate of the UE is improved, and the performance of the whole network is improved.
If the judging module judges that the HSDPA industry on all the current HSDPA channels is inIf the sum of the rates obtained by the service and the sum of the guaranteed rates of the HSDPA service on all the current HSDPA channels do not meet the preset condition, the total transmitting power sigma P of all the current HSDPA channels of the cell is further judgediWhether the formula is satisfied: sigma Pi+ΔP<Thdhsdpa*Pmax-hsdpaWherein P isiΔ P is the increased downlink transmit power after admission to the UE, P, to satisfy the power required for guaranteed rate for HSDPA services on an HSDPA channelmax-hsdpaMaximum available transmit power, Thd, for the HSDPA channel of a cellhsdpaA threshold set for HSDPA service. The admission decision module judges the sigma P at the judgment moduleiAnd when the formula is not satisfied, directly rejecting the access request of the UE.
If the judging module judges the sigma PiIf the formula is satisfied, the current downlink total transmitting power P of the cell is further judgedtotalWhether the formula is satisfied: ptotal+ΔP<Thd*PmaxAdmission decision module at the PtotalWhen the formula is satisfied, the UE is permitted to access the request, at the PtotalWhen the formula is not satisfied, rejecting the access request of the UE, wherein, the delta P is the increased downlink transmitting power after the UE is admitted, and PmaxThd is a set threshold factor, which is between 0 and 1, for the maximum downlink transmit power of the cell.
In addition, the judging module is also used for judging the total transmitting power P of all the current non-HSDPA channels of the cell when the receiving module receives the non-HSDPA access request of the UEnon-hsdpaWhether the formula is satisfied: pnon-hsdpa+ΔP<Thdnon-hsdpa*PmaxWhere Δ P is the increased downlink transmit power after admission to the UE, PmaxIs the maximum downlink transmit power, Thd, of the cellnon-hsdpaThe admission decision module decides the P at the decision module for a threshold set for non-HSDPA trafficnon-hsdpaAnd when the formula is not satisfied, directly rejecting the access request of the UE.
If the judging module judges the Pnon-hsdpaIf the formula is satisfied, the current downlink total transmission of the cell is further judgedPower of transmission PtotalWhether the formula is satisfied: ptotal+ΔP<Thd*PmaxAdmission decision module at the PtotalWhen the formula is satisfied, the UE is permitted to access the request, at the PtotalWhen the formula is not satisfied, rejecting the access request of the UE, wherein, the delta P is the increased downlink transmitting power after the UE is admitted, and PmaxThd is a set threshold factor, which is between 0 and 1, for the maximum downlink transmit power of the cell.
In summary, in each embodiment of the present invention, when receiving an HSDPA access request of a UE, a network side first determines whether a sum of rates obtained by HSDPA services on all current HSDPA channels and a sum of guaranteed rates of the HSDPA services satisfy a predetermined condition, and if so, directly grants the access request of the UE. In the HSDPA cell, the satisfaction degree of the existing HSDPA user can be reflected by the relation between the sum of the current speed of the existing user and the sum of the guaranteed speed of the existing user, so the relation between the sum of the current speed and the sum of the guaranteed speed can be used as a sufficient condition for the admission of the new HSDPA user, and the new UE can be directly admitted under the satisfied condition of the existing HSDPA user. The condition that the access request of new UE is rejected when the existing users in the system obtain the ultra-satisfactory service is avoided, so that the downlink access of the HSDPA cell can be more effectively controlled, the access success rate of the UE is improved, and the performance of the whole network is improved.
If the sum of the rates obtained by the HSDPA services on all the current HSDPA channels and the sum of the guaranteed rates of the HSDPA services do not meet the preset condition, the admission of the UE is judged by combining the downlink total transmitting power of the cell, the downlink admission method of the cell is further perfected, the downlink admission of the HSDPA cell can be more effectively controlled, and the performance of the whole network is improved.
For the HSDPA access request of the UE, before judging whether the current downlink total transmitting power of a cell meets a condition, a network side firstly judges whether the total transmitting power of all current HSDPA channels of the cell meets a certain condition; for the non-HSDPA access request of the UE, before judging whether the current downlink total transmitting power of the cell meets the condition, the network side firstly judges whether the total transmitting power of all current non-HSDPA channels of the cell meets a certain condition. In the process of power resource access, the total downlink transmitting power of the system, the total transmitting power of HSDPA service and the total transmitting power of non-HSDPA service are comprehensively considered, and the access conditions of HSDPA users and non-HSDPA users are independently controlled.
For the access request of the HSDPA best effort service, the network side can determine whether to directly grant the access request of the UE by judging whether the sum of the rates obtained by the HSDPA best effort service on all current HSDPA channels and the sum of the guaranteed rates of the service meet the preset condition; for the access request of the HSDPA real-time service, the network side can determine whether to directly grant the access request of the UE by judging whether the sum of the speeds obtained by the HSDPA real-time services on all current HSDPA channels and the sum of the guaranteed speeds of the services meet a preset condition. Because different types of HSDPA services have different requirements on service quality, different user satisfaction degrees can be set for the different types of HSDPA services by distinguishing the HSDPA services, so that users of the HSDPA services with higher requirements on service quality are further ensured, and higher satisfaction degrees are obtained.
While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims (12)

1. A method for cell downlink admission, comprising the steps of:
when a network side receives a high-speed downlink packet access (HSDPA) access request of User Equipment (UE), if the sum of the rates obtained by HSDPA services on all current HSDPA channels and the sum of the guaranteed rates of the HSDPA services on all current HSDPA channels meet a preset condition, the access request of the UE is directly permitted.
2. The method of claim 1, further comprising the steps of:
if the sum of the obtained rates and the sum of the guaranteed rates do not meet the preset condition, the network side judges the current downlink total transmitting power P of the celltotalWhether the formula is satisfied: ptotal+ΔP<Thd*PmaxIf yes, then granting the access request of the UE, otherwise, rejecting the access request of the UE, wherein, the delta P is the increased downlink transmission power after the UE is admitted, PmaxThd is a set threshold factor, which is between 0 and 1, for the maximum downlink transmit power of the cell.
3. The cell downlink admission method according to claim 2, further comprising the steps of:
the network side judges the current downlink total transmitting power P of the celltotalBefore whether the formula is satisfied, the total transmitting power sigma P of all the HSDPA channels of the cell is judgediWhether the formula is satisfied: sigma Pi+ΔP<Thdhsdpa*Pmax-hsdpaIf yes, then the current downlink total transmitting power P is addedtotalThe judgment is carried out, if the judgment is not satisfied, the access request of the UE is directly rejected, wherein, PiΔ P is the increased downlink transmit power after admission to the UE, P, to satisfy the power required for a guaranteed rate for HSDPA traffic on an HSDPA channelmax-hsdpaMaximum available transmit power, Thd, for the HSDPA channel of a cellhsdpaA threshold set for HSDPA service.
4. The method of claim 1, further comprising the steps of:
if the network side receives a non-HSDPA access request of the UE, the current downlink total transmitting power P of the cell is judgedtotalWhether the formula is satisfied: ptotal+ΔP<Thd*PmaxIf yes, the access request of the UE is permitted, otherwise, the access request of the UE is rejected, wherein, the delta P is permitted accessIncreased downlink transmit power, P, behind the UEmaxThd is a set threshold factor, which is between 0 and 1, for the maximum downlink transmit power of the cell.
5. The method of claim 4, further comprising the steps of:
the network side judges the current downlink total transmitting power P of the celltotalBefore whether the formula is satisfied, the total transmitting power P of all current non-HSDPA channels of the cell is judgednon-hsdpaWhether the formula is satisfied: pnon-hsdpa+ΔP<Thdnon-hsdpa*PmaxWherein, Δ P is the increased downlink transmission power after the UE is admitted, PmaxIs the maximum downlink transmit power, Thd, of the cellnon-hsdpaSetting a threshold for the non-HSDPA service, if the threshold is met, then performing the current downlink total transmitting power PtotalOtherwise, directly rejecting the access request of the UE.
6. The cell downlink admission method of any one of claims 1 to 5,
the predetermined condition is Σ Vi>ThdRate factor*∑GiWherein, sigma ViSum of the rates, SIG G, obtained for the HSDPA traffic on all current HSDPA channelsiIs the sum of the guaranteed rates, Thd, of said HSDPA traffic on all current HSDPA channelsRate factorTo guarantee a scaling factor for the rate.
7. The cell downlink admission method according to any one of claims 1 to 5, wherein the HSDPA access request is an HSDPA real-time service access request, and the HSDPA service is an HSDPA real-time service or all HSDPA services; or,
the HSDPA access request is an HSDPA best effort service access request, and the HSDPA service is an HSDPA best effort service or all HSDPA services.
8. A network-side device, comprising:
a receiving module, configured to receive an access request of a UE;
a judging module, configured to judge whether a sum of rates obtained by HSDPA services on all current HSDPA channels and a sum of guaranteed rates of the HSDPA services on all current HSDPA channels satisfy a predetermined condition when the receiving module receives an HSDPA access request; and
and the admission decision module is used for directly admitting the access request of the UE when the judgment module judges that the preset condition is met.
9. The network-side device of claim 8,
the judging module is also used for judging the total transmitting power sigma P of all the HSDPA channels in the cell when the sum of the speeds obtained by the HSDPA services on all the current HSDPA channels and the sum of the guaranteed speeds of the HSDPA services on all the current HSDPA channels do not meet the preset conditioniWhether the formula is satisfied: sigma Pi+ΔP<Thdhsdpa*Pmax-hsdpaWherein P isiΔ P is the increased downlink transmit power after admission to the UE, P, to satisfy the power required for a guaranteed rate for HSDPA traffic on an HSDPA channelmax-hsdpaMaximum available transmit power, Thd, for the HSDPA channel of a cellhsdpaA threshold set for HSDPA service;
the admission decision module is also used for judging the sigma P at the judging moduleiDirectly rejecting the access request of the UE when the formula is not satisfied;
the judging module is also used for judging the sigma PiWhen the formula is satisfied, the current downlink total transmitting power P of the cell is further judgedtotalWhether the formula is satisfied: ptotal+ΔP<Thd*PmaxSaid admission decision module is in said PtotalWhen the formula is satisfied, the access request of the UE is permitted, and the UE is permitted to access the network at the PtotalWhen the formula is not satisfied, rejecting the access request of the UE, wherein, the delta P is the increased downlink transmitting power after the UE is admitted, and PmaxThd is a set threshold factor, which is between 0 and 1, for the maximum downlink transmit power of the cell.
10. The network-side device of claim 8,
the judging module is also used for judging the total transmitting power P of all the current non-HSDPA channels of the cell when the receiving module receives the non-HSDPA access request of the UEnon-hsdpaWhether the formula is satisfied: pnon-hsdpa+ΔP<Thdnon-hsdpa*PmaxWherein, Δ P is the increased downlink transmission power after the UE is admitted, PmaxIs the maximum downlink transmit power, Thd, of the cellnon-hsdpaA threshold set for non-HSDPA services;
the admission decision module is also used for judging the P at the judgment modulenon-hsdpaDirectly rejecting the access request of the UE when the formula is not satisfied;
the judging module is also used for judging the Pnon-hsdpaWhen the formula is satisfied, the current downlink total transmitting power P of the cell is further judgedtotalWhether the formula is satisfied: ptotal+ΔP<Thd*PmaxSaid admission decision module is in said PtotalWhen the formula is satisfied, the access request of the UE is permitted, and the UE is permitted to access the network at the PtotalWhen the formula is not satisfied, rejecting the access request of the UE, wherein, the delta P is the increased downlink transmitting power after the UE is admitted, and PmaxThd is a set threshold factor, which is between 0 and 1, for the maximum downlink transmit power of the cell.
11. The network-side device of any one of claims 8 to 10,
the predetermined condition is Σ Vi>ThdRate factor*∑GiWherein, sigma ViSum of rates obtained for the HSDPA traffic on all current HSDPA channels,∑GiIs the sum of the guaranteed rates, Thd, of said HSDPA traffic on all current HSDPA channelsRate factorTo guarantee a scaling factor for the rate.
12. A cell downlink admission system, comprising a UE and the network side device according to any one of claims 8 to 10.
CNB2007100845718A 2007-02-14 2007-02-14 Cell downlink access permission method, system and network side device Expired - Fee Related CN100455060C (en)

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CN101640920B (en) * 2009-08-25 2011-12-21 华为技术有限公司 User device access control method and device of multi-carrier cell
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