WO2007006178A1 - Method for equalizing the load in down public channel and down common channel - Google Patents

Abstract

The present invention discloses a method for equalizing the load in down public channel and down common channel, it includes: (101) sets the reference rate about active degree of the user device in present access status of subzone; (102) decides whether the data rate requested by user device is larger than the data rate actually transmitted by user device, if it is, setting the user's active value to 1, otherwise, the user activity is min (1, the data rate actually transmitted by user device/the reference rate); (103) calculates the maximum transmission rate carried on the down public channel; (104) calculates the adjudge threshold, and the ratio of the maximum transmit rate carried on the down public channel compared to the reference rate; (105) decides whether the sum of the user activity carried on the down public channel is larger than or equal to the adjudge threshold of the down public channel, if it is, then goes to equalize the load.

Description

 Method for balancing downlink common channel and downlink shared channel load

 The present invention relates to a downlink common channel and downlink shared channel bearer service technology in a Wideband Code Division Multiple Access (WCDMA) system, and in particular, to a method for balancing a downlink common channel and a downlink shared channel load. Background technique

 In a WCDMA system, services can be carried on a common transport channel or a dedicated transport channel, and resource usage and transmission bandwidth of different transport channels are different. In order to make rational use of system resources and improve system bandwidth utilization, different services need to be carried on different transport channels according to the actual transmission rate and system load.

In the WCDMA system, we used the access channel as an example to analyze some problems in the prior art. A Forward Access Channel (FACH) is a downlink common channel that can carry services. Since the transmission bandwidth of FACH is generally small, it is only suitable for transmitting non-real-time services with small data rates or bursty small packet services. Therefore, if the data traffic carried by the FACH is much larger than the FACH transmission bandwidth, the data transmission delay is large, and even the buffer overflows and the data is lost. The network quality of service (QoS) cannot meet the user's requirements. In addition, since the FACH is a common channel, a plurality of user equipments (User Equipments, hereinafter referred to as UEs) can share code resources and shared power resources. The more the number of UEs carried on the FACH, the higher the code resource and power resource utilization ratio of the system. Therefore, if the FACH fails to access the FACH because other UEs with relatively small data rates are unable to access the FACH due to the UE carrying a large data rate, the FACH system resource utilization will not be optimal. In summary, if the effective load is not used to control and balance the FACH load, when the data traffic carried by the FACH is far greater than the FACH transmission bandwidth, the data transmission delay will be large, and even the buffer overflow data. Loss, network quality of service (QoS) cannot meet the user's needs; in addition, there may be cases where the FACH accesses a UE with a large data rate and cannot access other UEs with a relatively small data rate.

 Similarly, the current downlink common channel and downlink shared channel have the same problem. Summary of the invention

 The technical problem to be solved by the present invention is to provide a method for balancing the downlink common channel and the downlink shared channel load. To improve system resource utilization and network service quality.

 In order to solve the above technical problems, the present invention provides the following solutions:

 A method for balancing downlink common channel load includes the following steps:

 Step 101: Set a reference rate for measuring the degree of activity of the user equipment in the current access state of the cell for the decision decision;

 Step 102: Determine whether the data rate requested by the user equipment is greater than the data rate actually transmitted by the user equipment. If it is greater than, set the user activity value to 1. Otherwise, the user activity is: min (1, the data rate actually transmitted by the user equipment/ Base rate);

 Step 103: Calculate a maximum transmission rate that can be carried by the downlink common channel.

 Step 104: Calculate a decision threshold of the downlink common channel: a maximum transmission rate/reference rate that the downlink common channel can bear;

 Step 105: Determine whether the sum of user activities carried by the downlink common channel is greater than or equal to a downlink common channel decision threshold. If yes, the downlink common channel performs a balanced load operation.

The method for balancing a downlink common channel load according to the present invention, wherein the downlink public The channel is a forward access channel.

 The method for balancing the downlink common channel load according to the present invention, wherein, when the decision in the step 101 is the admission control of the downlink common channel, in step 105, the sum of user activities carried by the downlink common channel is less than When the downlink common channel decides the threshold, the accepting operation is performed. '

 The method for balancing the downlink common channel load according to the present invention, wherein, when the decision in the step 101 is the load control of the downlink common channel, in the step 105, the sum of user activities carried by the downlink common channel is greater than When the downlink common channel decision threshold is equal to or equal to, the load control operation is performed.

 The method for balancing the downlink common channel load according to the present invention, wherein, when the decision in the step 101 is that the load is equalized to the downlink common channel, in the step 105, the sum of user activities carried by the downlink common channel is greater than When the downlink common channel decision threshold is equal to or equal to, the load balancing operation is performed.

 The method for balancing the downlink common channel load according to the present invention, wherein, in the step 102, the determining whether the data rate requested by the user equipment is greater than the data rate actually transmitted by the user equipment and the data rate actually transmitted by the user equipment may further include The following steps:

 Step 201: Set a sliding time window for counting user device activity information;

 Step 202: The public media access control layer records the capacity values of the first and last requests of the dedicated media access control layer in the sliding time window;

 Step 203: The public medium access control layer records the sum of the number of bits of the dedicated media access control layer service packet data unit received in the sliding time window;

Step 204: Determine whether the last requested capacity value of the dedicated media access control layer in the sliding time window is greater than the capacity value of the first request. If yes, the data rate requested by the user equipment is greater than the data rate actually transmitted by the user equipment. Where the user device actually transmits The data rate of the input is: The sum of the number of bits of the dedicated media access control layer service packet data unit received in the sliding window, divided by the sliding time window.

 The method for balancing a downlink common channel load according to the present invention, wherein a maximum transmission rate that can be carried by the common channel is a transmission bandwidth of the auxiliary common control physical channel.

 The method for balancing the downlink common channel load according to the present invention, wherein the maximum transmission rate that can be carried by the common channel is min (the rate corresponding to the merged set of the maximum common transmission format of the common common control physical channel, and the spreading factor of the common common control physical channel) Corresponding maximum rate).

 A method for balancing downlink shared channel load includes the following steps:

 Step 301: Set a reference rate for measuring the degree of activity of the user equipment in the current access state of the cell for the decision decision;

 Step 302: Determine whether the data rate requested by the user equipment is greater than the data rate actually transmitted by the user equipment. If it is greater than, set the user activity value to 1. Otherwise, the user activity is: min (1, the data rate actually transmitted by the user equipment/ Base rate);

 Step 303: Calculate a maximum transmission rate that the downlink shared channel can bear;

 Step 304: Calculate a decision threshold of the downlink shared channel, where the threshold of the downlink shared channel is: a maximum transmission rate/reference rate that the downlink shared channel can bear;

 Step 305: Determine whether the sum of user activities carried by the downlink shared channel is greater than or equal to a downlink shared channel decision threshold. If yes, the downlink shared channel performs a balanced load operation.

 The method for balancing downlink shared channel load according to the present invention, wherein the shared channel is a high rate downlink shared channel.

The method for balancing the downlink shared channel load according to the present invention, wherein, when the decision in the step 301 is to determine the admission control of the downlink shared channel, in step 305, the sum of user activities carried by the downlink shared channel is less than When the downlink shared channel decides the threshold, Line acceptance operation.

 The method for balancing the downlink shared channel load according to the present invention, wherein, when the decision in the step 301 is the load control of the downlink shared channel, in step 305, the sum of user activities carried by the downlink shared channel is greater than When the downlink shared channel decision threshold is equal to or equal to, the load control operation is performed.

 The method for balancing the downlink shared channel load according to the present invention, wherein, when the decision in the step 301 is to determine the load balancing of the downlink shared channel, in step 305, the sum of user activities carried by the downlink shared channel is greater than When the downlink shared channel decision threshold is equal to or equal to, the load balancing operation is performed. '

 The method for balancing the downlink common channel and the downlink shared channel load according to the present invention ensures the FACH reasonable bearer system by comprehensively considering the data traffic of the FACH bearer and the number of users carried, according to the admission judgment of the pre-FACH bearer load. The load increases the utilization of the bandwidth resources of the wireless communication system and ensures the stable operation of the system.

 The technical problems, technical points, and advantageous effects to be solved by the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments. BRIEF abstract

 1 is a flowchart of a method for balancing a downlink common channel load according to the present invention; FIG. 2 is a schematic diagram of a bearer service of a forward access channel of a medium access control layer in a terrestrial radio access network of a universal wireless communication system;

 FIG. 3 is a schematic diagram of message interaction between a public media access control layer and a dedicated media access control layer;

 4 is a flow chart of another calculation of UE activity according to the present invention;

Figure 5 is a logical channel, a transport channel, and a physical channel when a service is established on a forward access channel. Schematic diagram of the mapping relationship;

 6 is a flow chart of a method for balancing a downlink shared channel load according to the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

 The present invention proposes a method for balancing the downlink common channel and the downlink shared channel load for the characteristics of the downlink common channel and the downlink shared channel and the characteristics of the downlink common channel and the downlink shared channel bearer service. The load of the current downlink common channel and the downlink shared channel is balanced and controlled by considering the data traffic carried by the downlink common channel and the downlink shared channel and the number of UEs carried on the downlink common channel and the downlink shared channel.

 As shown in FIG. 1, it is a flowchart of a method for balancing a downlink common channel load according to the present invention. First, in order to make a decision, a reference rate for measuring the degree of activeness of the user equipment in the current access state of the cell is set (step 101);

 The decision decision here may be admission control, load control, and load balancing of the forward access channel;

 Then, it is determined whether the data rate requested by the user equipment is greater than the data rate actually transmitted by the user equipment. If it is greater than, the user activity value is set to 1, otherwise, the user activity is: min (1, the data rate/reference actually transmitted by the user equipment. Rate) (step 102);

 Calculating a maximum transmission rate that the downlink common channel can bear (step 103);

 The decision threshold of the downlink common channel is calculated, and the decision threshold of the downlink common channel is: the maximum transmission rate/reference rate that the downlink common channel can carry (step 104):

 Finally, it is determined whether the sum of user activities carried by the downlink channel is greater than or equal to the downlink common channel activity, and if so, the forward access channel can accept new services (step 105).

Here, when the decision in the step 101 is decided as accepting the forward access channel In the control, in step 105, when the sum of the user activities carried by the forward access channel is smaller than the forward access channel decision threshold, the receiving operation is performed.

 When the decision in the step 101 is determined to be load control on the forward access channel, in step 105, when the sum of user activities carried by the forward access channel is greater than or equal to the forward access channel decision threshold. , perform load control operations.

 When the decision in step 101 is determined to be load balancing on the forward access channel, in step 105, when the sum of user activities carried by the forward access channel is greater than or equal to the forward access channel decision threshold. , Perform load balancing operations.

 As shown in FIG. 2, in a WCDMA system, a packet data unit (DCCH/DTCH Packet Data Unit) derived from a Dedicated Control Channel (DCCH)/Dedicated Traffic Channel (DTCH) is used. The service PDU is first stored in the Medium Access Control Dedicated (MAC-d) buffer; the service PDU stored in the MAC-d buffer is then accessed through the Public Access Control Layer (Medium Access). Control Common, hereinafter referred to as MAC-c) and MAC-d flow control mechanism is sent to the MAC-c buffer; the service PDU stored in the MAC-c buffer is then MAC-c plus MAC header (such as UE identification) After that, it is placed on the FACH transmission channel for transmission according to a certain scheduling principle.

As shown in FIG. 3, in the flow control mechanism between MAC-c and MAC-d, the MAC-d first sends a FACH CAPACITY REQUEST request to the MAC-c to request the MAC-c to allocate resources, the requested The quota is the total number of bits of the service PDU in the MAC-d buffer (UserBufferSize); the MAC-c allocates the capacity quota for the MAC-d according to the capacity of the MAC-d request and the capacity of the MAC-c idle buffer and passes the FACH flow control frame (FACH FLOW) CONTROL) is sent to the MAC-d; the MAC-d sends the service PDU in the corresponding MAC-d to the MAC-c through the FACH data frame according to the quota allocated by the MAC-c; The MAC-d sends the traffic PDU data frame also carries the new traffic request information of the MAC-d (the requested amount is the new UserBufferSize in the MAC-d cache), and the MAC-c redistributes the corresponding MAC-d according to the information. Capacity quota; In this way, the MAC-d sends the service PDU to the MAC-c in succession.

 We first set the base rate (BaseRate) of the UE activity level (Active) in the CELL-FACH state. In calculating the UE activity, in order to compare the data rate requested by the UE and the data rate actually transmitted by the UE, first, it is required to count the data rate requested by the UE and the data rate actually transmitted by the UE. Statistics The data rate (ReqRate) that the UE requests to transmit refers to the data rate at which the DCCH/DTCH requests MAC-d transmission, that is, the data rate at which the DCCH/DTCH is sent to the MAC-d. The measurement is performed at the MAC-d. The statistics of the actual data transmitted by the UE (ActRate) refers to the rate at which the MAC-c actually receives the MAC-d service PDU, and the measurement is performed at the MAC-c.

 1, if Re qRate > ActRate

 Then, calculate the UE activity, ie UE activity = j

Mm ₍ l,^^), other

 BaseRate, in addition, calculates the decision threshold of the forward access channel, which is the maximum transmission rate that can be carried; the maximum transmission rate that can be carried by the forward access channel is the transmission bandwidth of the auxiliary common control physical channel, that is, min (auxiliary public) Controlling the rate corresponding to the merged set of the maximum transmission format of the physical channel, and the maximum rate corresponding to the spreading factor of the common common control physical channel).

 Finally, it is determined whether the sum of the user activities carried by the forward access channel is smaller than the forward access channel decision threshold. For the admission decision of the forward access channel, if the judgment result is yes, the forward access channel can accept the new service. Otherwise, the forward access channel refuses to accept new services. This acceptance decision (shown in step 5 of Figure 1) is also done in the MAC-c.

For FACH load balancing, if the above judges the user carried by the forward access channel If the sum of the activities is greater than or equal to the forward access channel decision threshold, the load control operation is performed. For the FACH load control, if the sum of the user activities of the forward access channel bearer is greater than or equal to the forward access channel decision threshold, the load balancing operation is performed.

 In summary, taking FACH as an example, by calculating the UE activity and the FACH decision threshold, and comparing the FACH-capable UE activity sum with the FACH decision threshold, it is determined whether to accept a new service, or whether to perform load control, or whether to proceed. Load balancing. The load balancing operation for the forward access channel is realized. Similarly, for other downlink common channels, the load balancing operation can also be realized by the method of the present invention.

 Continuing with the FACH as an example, for the calculation process of the UE activity described above, in the case where the MAC-d and the MAC-c are not in the same Radio Network Controller (RNC), MAC-d may occur. The statistical result cannot be notified to MAC-c. However, from the above description, we can know that the data rate (ReqRate) requested by the UE is only used for size comparison with the data rate (ActRate) actually transmitted by the UE. Therefore, as long as the difference between the two is known (ReqRate - ActRate) Yes.

 Therefore, as shown in FIG. 4, the calculation of UE activity can also be calculated based on the information contained in the capacity request frame and the FACH data frame of the MAC-d. That is, when the MAC-d and the MAC-c are not in the same radio network controller, the forward access channel admission control method of the present invention specifically includes the following steps:

 First, setting the base rate (BaseRate) of the UE active level (Active) in the CELL-FACH state when the FACH can accept the new service (step 201);

 Then, the sliding time window (Slide_Window_Size) of the UE activity information is counted (step 202); here, the sliding time window is a time period set for monitoring the data traffic condition.

Then record the MAC-d in the sliding time window (Slide_Window_Size) by MAC-c. The first and last requested capacity values UserBufferSize _iFi f _St , UserBufferSize _iLast (step 203);

 Then, the MAC-c records the sum of the number of bits of the MAC-d service PDU (TotalBitNum) received in the sliding time window (Slide_Window_Size) (step 204);

 Next, the activity of the UE is calculated (step 205):

If UserBufferSize _iljast - UserBufferSize _iFirst >0, the data indicates that there is a service PDU in the MAC-d buffer area, SP: The data rate (ReqRate) requested by the UE is greater than the data rate (ActRate) actually transmitted by the UE, so the activity of the UE is 1 ;

 Otherwise, calculate the data rate actually transmitted by the UE (ActRate) =

 Slide Window Size, UE activity = min(l,^^)

 BaseRate

 In a WCDMA system, a plurality of secondary common control physical channels (hereinafter referred to as SCCPCHs) may be configured in the same cell, and which SCCPCH is selected by the HE is determined. The FACH of multiple bearer services can be mapped on the same SCCPCH, that is, the FACHs of multiple bearer services share the transmission bandwidth of the same SCCPCH. As shown in FIG. 5, CCCH and CTCH in the figure refer to a common control channel and a public service channel. Since the data rate of the bearer is small, it is not considered when calculating UE activity and FACH activity. The maximum transmission speed (FachMaxRate) of the FACH carried on the same SCCPCH, that is, the transmission bandwidth of the SCCPCH, is calculated as follows:

 FachMaxRate

 =minOSCCPCH max: the corresponding rate, the maximum rate corresponding to the spreading factor of the SCCPCH);

 Wherein, TFCS refers to a Transport Format Combination Set on the SCCPCH (step 206);

Calculating the FACH activity, that is, the decision threshold of the FACH = (step 207); At this point, both FACH activity and UE activity in the CLL-FACH state have been obtained. Whether FACH can accept new services can clearly determine:

 艮卩, if the sum of the activities of the UE currently carried by the FACH is greater than or equal to the FACH activity, then the load balancing operation is performed (step 208).

 艮卩, for FACH admission control, if the FACH current load is greater than or equal to the FACH admission threshold, the FACH refuses to accept the new service; otherwise, the FACH can accept the new service; for the FACH load control, if the FACH current load is greater than or equal to the FACH load control Threshold, then FACH performs load control operations;

 For FACH load balancing, if the FACH current load is greater than or equal to the FACH load balancing threshold, the FACH performs load balancing operations.

 For the method of the present invention, in general, the "base rate of UE activity in the CELL-FACH state in the FACH admission decision" is greater than the activity level of the UE in the CELL-FACH state in the FACH load balancing decision. (Active) Base Rate", "The FACH load balancing decision measures the UE Activeness (Active) base rate in the CELL-FACH state" is greater than the "Activeness of the UE in the CELL-FACH state when the FACH meets the load control condition" .

 FIG. 6 is a flow chart of a method for balancing a downlink shared channel load according to the present invention.

First, setting a reference rate for measuring the activity level of the user equipment in the current access state of the cell for the decision decision (step 301); then, determining whether the data rate requested by the user equipment is greater than the data rate actually transmitted by the user equipment, if it is greater than, setting The user activity value is 1, otherwise, the user activity is: min (1, the data rate/reference rate actually transmitted by the user equipment) (step 302); calculating the maximum transmission rate that the downlink shared channel can bear (step 303); calculating the downlink sharing The decision threshold of the channel, where the decision threshold of the downlink shared channel is: The maximum transmission rate/reference rate that can be carried by the row shared channel (step 304); determining whether the sum of the user activities carried by the downlink shared channel is greater than or equal to the downlink shared channel decision threshold, and if so, performing the balanced load operation on the downlink shared channel (step 305). Here, the balanced load operation may be an admission control operation, or a load control operation, or a load balancing operation. In High Rate Downlink Packet Access (HSDPA), the HSDPA maximum throughput (MAX_HS_RATE) for each cell can be obtained in advance. If "the HSDPA decision (such as admission, load control, load balancing, etc.) decision is made in the judgment of the UE active level (Active) reference rate HS - BaseRate", then the HSDPA user equipment UE current activity can be calculated according to the above method, HSDPA user The current activity of the device is the current HSDPA load of the cell in the decision of HSDPA (such as admission, load control, load balancing, etc.); at the same time, the cell can be calculated for HSDPA (such as admission, load control, load balancing).

 _ MAX—HS— RATE

And so on) the threshold of the decision (ie, HSDPA maximum activity - HS - BaseRate), then compare the current HSDPA load of the cell with the threshold of the HSDPA decision (such as admission, load control, load balancing, etc.), so that the current cell can be determined. Whether to perform certain operations of HSDPA (such as accepting new HSDPA users, or performing load control, load balancing operations, etc.).

Industrial Applicability The concept of user equipment activity and forward access channel activity referred to in the present invention is a method of measuring the downlink common channel load. It can be used for any operations related to the downlink common channel, such as forward access channel load control, load balancing, and the like. It is also possible to perform the admission control of the downlink shared channel such as the HS-DSCH by means of measuring the load of the downlink shared channel of other bearer services such as the High Speed Downlink Shared Channel (HS-DSCH). Load control, load balancing, etc. to improve the wireless communication system The utilization of wide resources and the stable operation of the system.

 The method for balancing the downlink common channel and the downlink shared channel load according to the present invention is not limited to the applications listed in the specification and the embodiment, and can be fully applied to various fields suitable for the present invention, and is familiar with the field. The present invention is not limited to the specific details, representative devices, without departing from the spirit and scope of the general concept as defined by the appended claims and the appended claims. And the illustrated examples shown and described herein.

Claims

Claim 1. A method of balancing a downlink common channel load, It is characterized by the following steps:  Step 101: Set a reference rate for measuring the degree of activity of the user equipment in the current access state of the cell for the decision decision;  Step 102: Determine whether the data rate requested by the user equipment is greater than the data rate actually transmitted by the user equipment. If it is greater than, set the user activity value to 1. Otherwise, the user activity is: min (1, the data rate actually transmitted by the user equipment/ Base rate);  Step 103: Calculate a maximum transmission rate that can be carried by the downlink common channel.  Step 104: Calculate a decision threshold of the downlink common channel: a maximum transmission rate/reference rate that the downlink common channel can bear;  Step 105: Determine whether the sum of user activities carried by the downlink common channel is greater than or equal to a downlink common channel decision threshold. If yes, the downlink common channel performs a balanced load operation.  2. The method of balancing a downlink common channel load according to claim 1, The feature is that: the downlink common channel is a forward access channel.  3. The balanced downlink common channel load method according to claim 2, It is characterized in that, when the decision in the step 101 is the admission control of the downlink common channel, in the step 105, when the sum of the user activities of the downlink common channel bearer is smaller than the downlink common channel decision threshold, the receiving operation is performed. .  4. The balanced downlink common channel load method according to claim 2, The method is characterized in that, when the decision in the step 101 is determined to be load control on the downlink common channel, in the step 105, the sum of user activities carried by the downlink common channel is greater than or equal to When the common channel decision threshold is performed, the load control operation is performed.  5. The balanced downlink common channel load method according to claim 2, When the decision in the step 101 is to determine the load balancing of the downlink common channel, in the step 105, when the sum of user activities carried by the downlink common channel is greater than or equal to the downlink common channel decision threshold, Load balancing operation.  6. The balanced downlink common channel load method according to claim 2, It is characterized in that, in the step 102, the determining whether the data rate requested by the user equipment is greater than the data rate actually transmitted by the user equipment and the data rate actually transmitted by the user equipment may further include the following steps:  Step 201: Set a sliding time window for counting user device activity information;  Step 202: The public media access control layer records the capacity value of the first and last request of the dedicated media access control layer in the sliding time window;  Step 203: The public medium access control layer records the sum of the number of bits of the dedicated media access control layer service packet data unit received in the sliding time window;  Step 204: Determine whether the capacity value of the last request of the dedicated media access control layer in the sliding time window is greater than the capacity value of the first request. If yes, the data rate requested by the user equipment is greater than the data rate actually transmitted by the user equipment. The data rate actually transmitted by the user equipment is: the sum of the number of bits of the dedicated media access control layer service packet data unit received in the sliding window, divided by the sliding time window.  7. The balanced downlink common channel load method according to claim 2, It is characterized in that the maximum transmission rate that the common channel can bear is the transmission bandwidth of the auxiliary common control physical channel. 8. The balanced downlink common channel load method according to claim 7, The maximum transmission rate that can be carried by the common channel is ^nin (the rate corresponding to the merged set of the maximum common transmission format of the common common control physical channel, and the maximum rate corresponding to the spreading factor of the common common control physical channel).  9. A method of balancing a downlink shared channel load, It is characterized by the following steps:  Step 301: Set a reference rate for measuring the degree of activity of the user equipment in the current access state of the cell for the decision decision;  Step 302: Determine whether the data rate requested by the user equipment is greater than the data rate actually transmitted by the user equipment. If it is greater than, set the user activity value to 1. Otherwise, the user activity is: min (1, the data rate actually transmitted by the user equipment/ Base rate);  Step 303: Calculate a maximum transmission rate that the downlink shared channel can bear;  Step 304: Calculate a decision threshold of the downlink shared channel, where the threshold of the downlink shared channel is: a maximum transmission rate/reference rate that the downlink shared channel can bear;  Step 305: Determine whether the sum of user activities carried by the downlink shared channel is greater than or equal to a downlink shared channel decision threshold. If yes, the downlink shared channel performs a balanced load operation.  10. The method for balancing a downlink shared channel load according to claim 9, wherein: the shared channel is a high rate downlink shared channel.  11. The method of balancing a downlink shared channel load according to claim 10, When the decision in the step 301 is to determine the admission control of the downlink shared channel, in step 305, when the sum of user activities carried by the downlink shared channel is smaller than the downlink shared channel decision threshold, the receiving operation is performed. .  12. The method of balancing a downlink shared channel load according to claim 10, The method is characterized in that: in the step 301, the decision is determined to be load control on a downlink shared channel. In the step 305, when the sum of the user activities carried by the downlink shared channel is greater than or equal to the downlink shared channel decision threshold, the load control operation is performed.  The method for balancing the downlink shared channel load according to claim 10, wherein, when the decision in the step 301 is to determine the load balancing of the downlink shared channel, in the step 305, the downlink shared channel bearer The load balancing operation is performed when the sum of user activities is greater than or equal to the downlink shared channel decision threshold.