CN101355439B - Method, system and wireless network controller for controlling user equipment capability - Google Patents

Abstract

The invention discloses a method for controlling user equipment capacity, which comprises the following steps: scheduling information of each service media access control private channel protocol data unit (MAC-d PDU) in each media access control shared channel protocol data unit (MAC-hs PDU) is obtained in a base station; according to the scheduling information, buffer capacity occupied by an MAC-hs reordering array of UE is calculated; according to the buffer capacity occupied by the MAC-hs reordering array of the UE and the obtained largest buffer capacity of an acknowledged mode entity ofa radio link control layer (RLC AM), the total buffer occupation amount of the UE is obtained by calculation; and according to the total buffer occupation amount of the UE and the largest capacity ofa shared memory pool in UE capacity information, the control parameters of the UE capacity are configured. In addition, the invention also discloses a system for controlling the UE capacity and RNC. The technical proposal provided by the invention can effectively control the buffer capacity of the UE side.

Description

The control method of UE capability, system and radio network controller

Technical field

The present invention relates to the communication technology, relate in particular to control method, system and the radio network controller (RNC) of a kind of subscriber equipment (UE) ability.

Background technology

High speed downlink packet inserts (HSDPA) system has increased the Flow Control that HSDPA is supported in medium access control shared channel (MAC-hs) sublayer at medium access control (MAC) layer of UE side and base station (Node-B) side, fast dispatch, priority management, HARQ and transport format resource indication (TFRI) are selected, MAC-hs is positioned under another sublayer MAC-d (d refers to special use) of MAC layer, on the physical layer.

After increasing the MAC-hs entity, the heap(ed) capacity in the shared drive pond in the UE ability information (TotalRLC AM and MAC-hs buffer size (Total buffer size)) cell is used to indicate the largest buffered sum of affirmation pattern (AM) entity of all MAC-hs reorder queue that UE can support and wireless chain control layer (RLC).

But in the prior art, the heap(ed) capacity (Total buffer size) in shared drive pond compares in the buffer memory capacity (Total RLC AM buffer size) that the RNC side can only take according to all RLCAM entities of UE the control of UE ability and the UE ability information, when the buffer memory capacity that takies at the AM entity surpasses the heap(ed) capacity in UE side shared drive pond, RNC can be by suitably adjusting the Control Parameter of UE ability, be high-rise configuration parameter RLC AM send window size (RLC AM transmissionwindow size) or RLC AM receive window size (RLC AM receiving window size), to reduce taking of UE side shared drive pond.

After adjusting, make size (AMD_PDU_size), RLC AM send window size (Transmission_window_size), RLC AM receiver window size (Receiving_window_size) and the RLC AM entity number (RLC_AM_entities) of RLC AM protocol Data Unit (PDU) satisfy formula (1), even the buffer memory capacity that RLC AM entity takies is smaller or equal to the heap(ed) capacity in the shared drive pond of UE side.

$\begin{array}{c}\mathrm{RLC}\_\mathrm{AM}\_\mathrm{entities}\\ \underset{i=1}{\mathrm{\Σ}}\mathrm{Transm\; ission}\_\mathrm{window}\_{\mathrm{size}}_i\·(\mathrm{UL}\_\mathrm{AMD}\_\mathrm{PDU}\_{\mathrm{size}}_i-\mathrm{AMD}\_\mathrm{Header}\_\mathrm{size})+\\ \mathrm{RLC}\_\mathrm{AM}\_\mathrm{entities}\\ \underset{i=1}{\mathrm{\Σ}}\mathrm{Receiving}\_\mathrm{window}\_{\mathrm{size}}_i\·(\mathrm{DL}\_\mathrm{AMD}\_\mathrm{PDU}\_{\mathrm{size}}_i-\mathrm{AMD}\_\mathrm{Header}\_\mathrm{size})\\ \≤\mathrm{Total}\_\mathrm{buffer}\_\mathrm{size}\end{array}---\left(1\right)$

"≤" result of calculation before is the buffer memory capacity RLC_AM_buffer_size that RLC AM entity takies in the formula (1).In the formula (1), UL_AMD_PDU_size is the size of up RLC AM PDU, and DL_AMD_PDU_size is the size of descending RLCAM PDU, and AMD_Header_size is the head size among the RLC AM PDU.

As seen, in the prior art, the RNC side has only been considered the buffer memory capacity that all AM entities take to the control of UE ability, and do not consider the expense of buffer memory capacity in the shared drive pond of UE side that all MAC-hs reorder queue take, therefore under the situation of UE side shared drive resource-constrained, according to RNC side in the prior art to the control of UE ability, the heap(ed) capacity that buffer memory capacity sum that buffer memory capacity that all AM entities take and all MAC-hs reorder queue take exceeds UE side shared drive pond appears in UE side possibly, cause the UE side unusual, internal memory takes place overflow.

Summary of the invention

In view of this, provide a kind of control method of UE ability among the present invention on the one hand, provide a kind of control system and device of UE ability on the other hand, so that effectively control the buffer memory ability of UE side.

The control method of UE ability provided by the present invention comprises:

RNC obtains the scheduling number information of base station node B to each service media access control dedicated channel protocol Data Unit MAC-d PDU among each medium access control shared channel protocol Data Unit MAC-hsPDU;

RNC calculates the shared buffer memory capacity of MAC-hs reorder queue of UE according to described scheduling number information;

RNC calculates total cache occupation amount of UE according to the buffer memory capacity of the affirmation pattern RLC AM entity of shared buffer memory capacity of described MAC-hs reorder queue and the wireless chain control layer that obtains;

RNC is according to the total cache occupation amount of described UE and the heap(ed) capacity in the shared drive pond in the UE ability information, the Control Parameter of configuration UE ability.

Wherein, the described Node of obtaining B to the scheduling number information of each professional MAC-d PDU among each MAC-hs PDU is: according to the business information among each pre-configured MAC-hs PDU, and the maximum rate of each business wireless access load-bearing and assurance speed, estimate the scheduling number information of Node B to each professional MAC-dPDU among each MAC-hs PDU;

Perhaps be: obtain the scheduling number information that Node B reports to each professional MAC-d PDU among each MAC-hs PDU.

Wherein, described according to scheduling number information, the shared buffer memory capacity of MAC-hs reorder queue of calculating UE is:

According to described scheduling number information, calculate the size of each MAC-hs PDU, according to the size of described each MAC-hs PDU and the receiver window size of pre-configured each MAC-hs, calculate the shared buffer memory capacity of MAC-hs reorder queue of UE.

The Control Parameter of described UE ability comprises: the affirmation pattern RLC AM of wireless chain control layer sends the window size, and/or, RLC AM receiver window size, and/or, MAC-hs receiver window size.

The control system of UE ability provided by the present invention comprises: radio network controller (RNC), Node B and UE, wherein,

Described Node B is used for each professional MAC-d PDU of each MAC-hs PDU is dispatched, and generates each MAC-hs PDU and sends to UE;

Described UE is used to receive each the MAC-hs PDU from Node B, and described each MAC-hs PDU is assigned to corresponding reorder queue, reorders afterwards and breaks, and obtains each professional MAC-d PDU;

Described RNC is used for obtaining the scheduling number information of Node B to each each professional MAC-d PDU of MAC-hs PDU, according to the shared buffer memory capacity of MAC-hs reorder queue of described scheduling number information calculations UE; According to the buffer memory capacity of shared buffer memory capacity of described MAC-hs reorder queue and the RLC AM entity that obtains, calculate total cache occupation amount of UE; According to the total cache occupation amount of described UE and the heap(ed) capacity in the shared drive pond in the UE ability information, the Control Parameter of configuration UE ability.

Wherein, described RNC comprises:

MAC-hs reorder queue calculation of capacity module, be used for obtaining the scheduling number information of Node B to each each professional MAC-d PDU of MAC-hs PDU, according to the shared buffer memory capacity of MAC-hs reorder queue of described scheduling number information calculations UE, the shared buffer memory capacity of described MAC-hs reorder queue is offered total cache occupation amount computing module;

Total cache occupation amount computing module, be used for buffer memory capacity according to shared buffer memory capacity of described MAC-hs reorder queue and the RLC AM entity that obtains, calculate total cache occupation amount of UE, total cache occupation amount of described UE is offered UE ability control module;

UE ability control module is used for the heap(ed) capacity according to the shared drive pond of the total cache occupation amount of described UE and UE ability information, the Control Parameter of configuration UE ability.

Described Node B further sends to RNC with self to the scheduling number information of each professional MAC-d PDU among the MAC-hs PDU.

RNC provided by the present invention comprises:

MAC-hs reorder queue calculation of capacity module, be used for obtaining the scheduling number information of Node B to each each professional MAC-d PDU of MAC-hs PDU, according to the shared buffer memory capacity of MAC-hs reorder queue of described scheduling number information calculations UE, the shared buffer memory capacity of described MAC-hs reorder queue is offered total cache occupation amount computing module;

Total cache occupation amount computing module, be used for buffer memory capacity according to shared buffer memory capacity of described MAC-hs reorder queue and the RLC AM entity that obtains, calculate total cache occupation amount of UE, total cache occupation amount of described UE is offered UE ability control module;

UE ability control module is used for the heap(ed) capacity according to the shared drive pond of the total cache occupation amount of described UE and UE ability information, the Control Parameter of configuration UE ability.

Wherein, described MAC-hs reorder queue calculation of capacity module comprises:

Schedule information estimator module, be used for business information according to each pre-configured MAC-hs PDU, and the maximum rate of each business wireless access load-bearing and assurance speed, estimate the scheduling number information of Node B, described scheduling number information is offered the buffer memory capacity calculating sub module each professional MAC-d PDU among each MAC-hs PDU;

The buffer memory capacity calculating sub module is used for according to described scheduling number information, calculates the shared buffer memory capacity of MAC-hs reorder queue of UE.

Perhaps, described MAC-hs reorder queue calculation of capacity module comprises:

Schedule information receives submodule, is used for receiving the scheduling number information to each each professional MAC-d PDU of MAC-hs PDU that Node B reports, and described scheduling number information is offered the buffer memory capacity calculating sub module;

The buffer memory capacity calculating sub module is used for according to described scheduling number information, calculates the shared buffer memory capacity of MAC-hs reorder queue of UE.

From such scheme as can be seen, among the present invention by obtaining the schedule information of Node B to each professional MAC-d PDU among the MAC-hs PDU, calculate the shared buffer memory capacity of MAC-hs reorder queue of UE, according to the shared buffer memory capacity of the MAC-hs reorder queue of being calculated and the largest buffered capacity of resulting RLC AM entity, obtain total cache occupation amount of UE afterwards; According to the total cache occupation amount of UE and the heap(ed) capacity in the shared drive pond in the UE ability information, the Control Parameter of configuration UE ability, thereby make the buffer memory capacity that all AM entities take is not only considered in the control of UE ability, and consider the expense of buffer memory capacity in the shared drive pond of UE side that all MAC-hs reorder queue take, therefore feasible more effective to the control of UE ability.

Description of drawings

Fig. 1 is the structural representation of the MAC-hs of Node B side in the prior art;

Fig. 2 is the structural representation of the MAC-hs of UE side in the prior art;

Fig. 3 is the form schematic diagram of MAC-hs PDU in the prior art;

Fig. 4 is the exemplary process diagram of the control method of UE ability in the embodiment of the invention;

Fig. 5 is the exemplary block diagram of the control system of UE ability in the embodiment of the invention;

Fig. 6 is the internal structure schematic diagram of RNC in the system shown in Figure 5;

Fig. 7 is a kind of internal structure schematic diagram of MAC-hs reorder queue calculation of capacity module among the RNC shown in Figure 6;

Fig. 8 is another internal structure schematic diagram of MAC-hs reorder queue calculation of capacity module among the RNC shown in Figure 6.

Embodiment

Among the present invention for effective control UE ability, need to calculate the shared buffer memory capacity of MAC-hs reorder queue, in order to calculate the shared buffer memory capacity of MAC-hs reorder queue, at first the Node B side behind the increase MAC-hs entity and the course of work of UE side are described in detail.

Fig. 1 and Fig. 2 show the structure of the MAC-hs of Node B side and UE side respectively.

As shown in Figure 1, after flowing to MAC-hs entity among the Node B from the MAC-d of each UE among the RNC, at first by the priority of priority query's allocation units according to the MAC-d protocol Data Unit (PDU) on the MAC-d stream, with allocation of packets buffer memory in the different priority queries, wait for the NodeB scheduling, be able to go up transmission at high-speed downlink shared channel (HS-DSCH).Wherein, the packet in each priority query is the MAC-d PDU with equal priority of same UE, and its size has nothing in common with each other.

Node B dispatches the data transmission of each priority query of each UE at each Transmission Time Interval (TTI), be that Node B selects the MAC-d PDU of the some in a certain priority query of a certain UE in the HS-DSCH of current TTI channel according to certain dispatching algorithm, selected MAC-d PDU transfers to multiplexing formation MAC-hs PDU again the HARQ entity and transmits by a certain HARQ process of this UE.Transmission format resource combination (TFRC) selected cell then is responsible for being chosen in HS-DSCH and is gone up employed transformat and the resources such as parallel code channel number and corresponding spreading code, transmission block size, modulation scheme of comprising of transmission.

Wherein, the form of MAC-hs PDU as shown in Figure 3, the head of MAC-hs PDU comprises fields such as version sign (VF), queue number (Queue ID), transmission sequence number (TSN), MAC-d PDU Length Indication (SID), MAC-d PDU number N and sign F.Wherein, the VF field length is 1 bit, is used to identify the version of MAC-hs PDU; Queue id field length is 3 bits, is used to identify the MAC-hs PDU of same priority formation; The TSN field length is 6 bits, is used to identify the sequence number of MAC-hs PDU, thereby makes the receiving terminal can be according to the original MAC-hs PDU of SN recovery order; The SID field length is 3 bits, is used to indicate the length of same size sequence cascade MAC-dPDU together; The N field length is 7 bits, represents the number of same size sequence cascade MAC-d PDU together.The payload part of MAC-hs PDU is by a plurality of MAC-hs SDU, be MAC-d PDU, multiplexing forming, MAC-d PDU that vary in size has multiple because same priority formation medium priority is identical, i.e. k kind MAC-d PDU among the figure, wherein the value of k is pre-configured by RNC, and therefore multiplexing MAC-d PDU on MAC-hs PDU has multiple different length, generally, the MAC-d PDU of same length is the MAC-d PDU of same business.In the payload part of MAC-hsPDU, the MAC-d PDU concatenated in order of same length together, the number of its size and concatenated in order MAC-d PDU together is then by corresponding SID of MAC-hs PDU head and N field identification.Wherein, length is whether be MAC-d PDU pairing SID and the N field identification of another one size to the F field of 1 bit if then indicating follow-up, wherein, if the F field is " 0 ", represent that then follow-up is the pairing SID of MAC-d PDU and the N field identification of another one size, if field is the end that " 1 " then represents MAC-hs PDU head, promptly follow-up is the payload part of this MAC-hs PDU.

Node B according to the multiplexing formation of the form of MAC-hs PDU MAC-hs PDU, transfers to the HARQ entity with a plurality of MAC-d PDU in certain UE assigned priority formation at a TTI again, and a certain HARQ process by this UE is transferred to this UE.

In the UE side, as shown in Figure 2, the MAC-hs entity of UE side will at first be delivered to the HARQ entity from the MAC-hs PDU of HS-DSCH channel, the HARQ entity of UE side is the recipient of the HARQ entity of UTRAN side, is responsible for finishing generation and correctly replys operations such as (ACK)/wrong responses (NACK), the soft merging of HARQ.After the HARQ processing, the reorder queue unit is assigned to corresponding reorder queue according to the Queue id field of MAC-hsPDU head with this MAC-hs PDU, and in reorder queue, TSN field according to each MAC-hs PDU head is resequenced to each MAC-hs PDU, thereby recover original packet sequence, at last, the MAC-hsPDU that has recovered original order is admitted to the partition unit, and the partition unit splits out each MAC-d PDU and is sent to the MAC-d entity according to SID, the N of MAC-hs PDU head and the F field payload part branch from MAC-hs PDU.

Wherein, the size of the buffer memory capacity MAC-hs_reordering_buffer_size that each MAC-hs reorder queue of UE side takies is relevant with the size of MAC-hs PDU, and MAC-hs_reordering_buffer_size satisfies following relational expression (2):

MAC-hs_reordering_buffer_size

(2)

＝(MAC-hs_PDU_size-10)*MAC-hs_receiving_window_size

According to the form schematic diagram of MAC-hs PDU shown in Figure 3 as can be known, size MAC-hs_PDU_size of MAC-hs PDU satisfies following relational expression (3):

$\mathrm{MAC}-\mathrm{hs}\_\mathrm{PDU}\_\mathrm{size}=\underset{i=1}{\overset{k}{\mathrm{\Σ}}}(N_i*\mathrm{MAC}-d\_{\mathrm{PDU}}_i\_\mathrm{size})+\mathrm{MAC}-\mathrm{hs}\_\mathrm{Header}\_\mathrm{size}---\left(3\right)$

Can obtain MAC-hs_Header_size=10+k*11 (4) by the shared bit number of each several part in header information in the form schematic diagram of MAC-hs PDU shown in Figure 3 and the header information again

In formula (3) and formula (4) substitution formula (2), then have:

$\mathrm{MAC}-\mathrm{hs}\_\mathrm{reordering}\_\mathrm{buffer}\_\mathrm{size}$

$=[\underset{i=1}{\overset{k}{\mathrm{\Σ}}}(N_i*\mathrm{MAC}-d\_{\mathrm{PDU}}_i\_\mathrm{size})+\mathrm{MAC}-\mathrm{hs}\_\mathrm{Header}\_\mathrm{size}-10]*\mathrm{MAC}-\mathrm{hs}\_\mathrm{receiving}\_\mathrm{window}\_\mathrm{size}$

(5

$=[\underset{i=1}{\overset{k}{\mathrm{\Σ}}}(N_i*\mathrm{MAC}-d\_{\mathrm{PDU}}_i\_\mathrm{size})+(10+k*11)-10]*\mathrm{MAC}-\mathrm{hs}\_\mathrm{receiving}\_\mathrm{window}\_\mathrm{size}$

$=[\underset{i=1}{\overset{k}{\mathrm{\Σ}}}(N_i*\mathrm{MAC}-d\_{\mathrm{PDU}}_i\_\mathrm{size})+k*11]*\mathrm{MAC}-\mathrm{hs}\_\mathrm{receiving}\_\mathrm{window}\_\mathrm{size}$

The maximum quantity of k=1...SID

)

In like manner, the shared buffer memory capacity of other MAC-hs reorder queue of UE side can be calculated according to above-mentioned formula (5) and get final product, and then the shared buffer memory capacity Total_MAC-hs_reordering_buffer_size of MAC-hs reorder queue of UE satisfies following relational expression (6):

$\mathrm{total}\_\mathrm{MAC}-\mathrm{hs}\_\mathrm{reordering}\_\mathrm{buffer}\_\mathrm{size}$

$=\underset{j=1}{\overset{M}{\mathrm{\Σ}}}\mathrm{MAC}-\mathrm{hs}\_\mathrm{reorderin}{g}_j\_\mathrm{buffer}\_\mathrm{size}---\left(6\right)$

M=1... the reorder queue maximum of each UE

Can calculate the shared buffer memory capacity of MAC-hs reorder queue of UE according to above-mentioned formula (5) and formula (6).In the above-mentioned formula (6), the value of M is pre-configured by RNC; In the above-mentioned formula (5), the value of MAC-hs_receiving_window_size and k is pre-configured by RNC, so RNC only need be known MAC-d_PDU _i_ size and corresponding N thereof _i, i=1,2 ..., k gets final product, and promptly Node B if M MAC-hs PDU arranged, then needs to know each MAC-d_PDU among each MAC-hs PDU among M the MAC-hs PDU to the schedule information of each professional MAC-d PDU among the MAC-hs PDU _i_ size and corresponding N thereof _iWherein, the known MAC-d_PDU of RNC _i_ size, but do not know the N that it is corresponding _i, so N _iBe the calculating key in the embodiment of the invention.

For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, the present invention is described in more detail.

Fig. 4 is the exemplary process diagram of the control method of UE ability in the embodiment of the invention.As shown in Figure 4, this flow process comprises the steps:

Step 401 is obtained the schedule information of Node B to each professional MAC-d PDU among each MAC-hs PDU.

According to aforementioned analysis as can be known, RNC can be known MAC-d_PDU _i_ size, therefore, RNC only need be known the N of each professional MAC-d PDU among each MAC-hs PDU here _iGet final product.

Because N _iDistribute voluntarily when carrying out MAC-d PDU scheduling, therefore obtain N by Node B _iMethod can comprise following two kinds at least:

First method: according to the business information among each pre-configured MAC-hs PDU, and maximum rate of each business wireless access load-bearing (RAB) and assurance speed, estimate the scheduling number of Node B to each professional MAC-d PDU among each MAC-hsPDU.

RNC is according to the assurance speed of the RAB of professional i, and the relation of speed and RLC SDU (being that RLC PDU or MAC-d SDU remove the RLC head), can obtain the quantity N of the MAC-d PDU of professional i _iSatisfy following relational expression (7):

$\frac{(\mathrm{MAC}-d\_{\mathrm{PDU}}_i\_\mathrm{size}-\mathrm{MAC}-d\_\mathrm{Header}\_\mathrm{size}-\mathrm{AMD}\_\mathrm{Header}\_\mathrm{size})*N_i^{\min }}{\mathrm{TTI}}={\mathrm{RAB}}_i+\mathrm{GuarBitRate}$

$\↓$

$N_i^{\min }=\frac{{\mathrm{RAB}}_i-\mathrm{GuarBitRate}*\mathrm{TTI}}{\mathrm{MAC}-d\_{\mathrm{PDU}}_i\_\mathrm{size}-\mathrm{MAC}-d\_\mathrm{Header}\_\mathrm{size}-\mathrm{AMD}\_\mathrm{Header}\_\mathrm{size}}---\left(7\right)$

$\↓$

$N_i\≥N_i^{\min },i=\mathrm{1,2},...,k$

Wherein, RAB _i_ GuarBitRate is the assurance speed of the RAB of professional i, and the head size of MAC-d PDU, i.e. the head size of the value of MAC-d_Header_size and MAC-d SDU (being RLC PDU), and promptly the value of AMD_Header_size is all as can be known.

In like manner, RNC can also obtain the MAC-dPDU quantity N of professional i according to the flank speed of the RAB of professional i _iFollowing relational expression (8):

$\frac{(\mathrm{MAC}-d\_{\mathrm{PDU}}_i\_\mathrm{size}-\mathrm{Mac}-d\_\mathrm{Header}\_\mathrm{size}-\mathrm{AMD}\_\mathrm{Header}\_\mathrm{size})*N_i^{\max }}{\mathrm{TTI}}={\mathrm{RAB}}_i\_\mathrm{MaxBitRate}$

↓

$N_i^{\min }=\frac{{\mathrm{RAB}}_{i\_}\mathrm{MaxBitRate}*\mathrm{TTI}}{\mathrm{MAC}-d\_{\mathrm{PDU}}_i\_\mathrm{size}-\mathrm{MAC}-d\_\mathrm{Header}\_\mathrm{size}-\mathrm{AMD}\_\mathrm{Header}\_\mathrm{size}}---\left(8\right)$

↓

$N_i\≤N_i^{\max },$ i＝1，2，...，k

Wherein, RAB _i_ MaxBitRate is the maximum rate of the RAB of professional i.

By formula (7) and formula (8), can estimate the MAC-d PDU quantity N of professional i _iValue be N in the practical application _iCan be

Between any integer.

Can estimate the scheduling number of each professional MAC-d PDU among each MAC-hs PDU equally.

Second method: obtain the scheduling number that Node B reports to each professional MAC-dPDU among each MAC-hs PDU.

In this method, Node B reports RNC with self to the information of the scheduling number of each professional MAC-d PDU among each MAC-hs PDU.

Step 402 according to the schedule information of each professional MAC-d PDU among each the MAC-hs PDU that is obtained, is calculated the shared buffer memory capacity of MAC-hs reorder queue of UE.

In this step, after step 401 obtains the scheduling number of each professional MAC-d PDU among each MAC-hs PDU, can calculate the shared buffer memory capacity of MAC-hs reorder queue of UE according to aforementioned formula (5) and formula (6).Promptly pass through the Node B that obtained schedule information to each professional MAC-dPDU among each MAC-hs PDU, calculate the size of each MAC-hs PDU, according to the size of each MAC-hsPDU that is calculated and the receiver window size of pre-configured each MAC-hs, calculate the shared buffer memory capacity of MAC-hs reorder queue of UE.

Step 403 according to the buffer memory capacity of shared buffer memory capacity of the MAC-hs reorder queue of being calculated and the RLC AM entity that obtains, calculates total cache occupation amount of UE.

In this step, the buffer memory capacity of RLC AM entity can be calculated according to "≤" computational methods before in the formula (1), that is:

$\mathrm{RLC}\_\mathrm{AM}\_\mathrm{buffer}\_\mathrm{size}=$

$\mathrm{RLC}\_\mathrm{AM}\_\mathrm{entities}$ (9)

$\underset{i=1}{\mathrm{\Σ}}\mathrm{Transmission}\_\mathrm{window}\_{\mathrm{size}}_i\·(\mathrm{UL}\_\mathrm{AMD}\_\mathrm{PDU}\_{\mathrm{size}}_i-\mathrm{AMD}\_\mathrm{Header}\_\mathrm{size})+$

$\mathrm{RLC}\_\mathrm{AM}\_\mathrm{entities}$

$\underset{i=1}{\mathrm{\Σ}}\mathrm{Receiving}\_\mathrm{window}\_{\mathrm{size}}_i\·(\mathrm{DL}\_\mathrm{AMD}\_\mathrm{PDU}\_{\mathrm{size}}_i-\mathrm{AMD}\_\mathrm{Header}\_\mathrm{size})$

Then total cache occupation amount Total_size of UE satisfies following relational expression (10):

Total_size＝RLC_AM_buffer_size+Total_MAC-hs_reordering_buffer_size(10)

Step 404 is according to the total cache occupation amount of the UE that is calculated and the heap(ed) capacity in the shared drive pond in the UE ability information, the Control Parameter of configuration UE ability.

In this step, the total cache occupation amount of the UE that calculated and the heap(ed) capacity in the shared drive pond in the UE ability information are compared, if total cache occupation amount of UE more than or equal to the heap(ed) capacity in the shared drive pond in the UE ability information, is then adjusted the Control Parameter of UE ability; Otherwise, can keep the Control Parameter of current UE ability constant, or also can adjust the Control Parameter of UE ability as required.

Wherein, the Control Parameter of UE ability can comprise: RLC AM sends the window size, and/or, RLCAM receiver window size, and/or, MAC-hs receiver window size.

More than the control method of UE ability in the embodiment of the invention is described in detail, again the control system and the RNC of UE ability in the embodiment of the invention is described in detail below.

The exemplary block diagram of the control system of UE ability in Fig. 5 embodiment of the invention.As shown in Figure 5, this system comprises: RNC, Node B and UE.

Wherein, Node B is used for each professional MAC-d PDU of each MAC-hs PDU is dispatched, and generates each MAC-hs PDU and sends to UE.

UE is used to receive each the MAC-hs PDU from Node B, and described each MAC-hs PDU is assigned to corresponding reorder queue, reorders afterwards and breaks, and obtains each professional MAC-dPDU.

RNC is used for obtaining the schedule information of Node B to each each professional MAC-d PDU of MAC-hs PDU, calculates the shared buffer memory capacity of MAC-hs reorder queue of UE according to the schedule information of being obtained; According to the buffer memory capacity of shared buffer memory capacity of the MAC-hs reorder queue of being calculated and the RLC AM entity that obtains, calculate total cache occupation amount of UE; According to the total cache occupation amount of the UE that is calculated and the heap(ed) capacity in the shared drive pond in the UE ability information, the Control Parameter of configuration UE ability.

Wherein, the concrete function implementation procedure of RNC can be consistent with the implementation procedure described in each step in the flow process shown in Figure 4.

During specific implementation, RNC can have multiple way of realization, only enumerates wherein a kind of way of realization below the specific implementation of RNC internal structure is described in detail.

Fig. 6 shows a kind of internal structure schematic diagram of RNC.As shown in Figure 6, this RNC comprises: MAC-hs reorder queue calculation of capacity module, total cache occupation amount computing module and UE ability control module.

Wherein, MAC-hs reorder queue calculation of capacity module, be used for obtaining the schedule information of Node B to each professional MAC-d PDU of each MAC-hsPDU, the shared buffer memory capacity of MAC-hs reorder queue according to the schedule information calculating UE that is obtained offers total cache occupation amount computing module with the shared buffer memory capacity of being calculated of MAC-hs reorder queue.

Total cache occupation amount computing module, be used for buffer memory capacity according to shared buffer memory capacity of the MAC-hs reorder queue of being calculated and the RLC AM entity that obtains, calculate total cache occupation amount of UE, total cache occupation amount of the UE that calculated is offered UE ability control module.

UE ability control module is used for the heap(ed) capacity according to the shared drive pond of the total cache occupation amount of the UE that is calculated and UE ability information, the Control Parameter of configuration UE ability.

Wherein, the concrete function implementation procedure of each module can be consistent with the implementation procedure described in each step in the flow process shown in Figure 4 among the RNC, and the one of ordinary skilled in the art need not creative work, can segment or merge above-mentioned each module.

For example: Fig. 7 shows a kind of internal structure schematic diagram of MAC-hs reorder queue calculation of capacity module.As shown in Figure 7, this MAC-hs reorder queue calculation of capacity module comprises: schedule information estimator module and buffer memory calculation of capacity submodule.

Wherein, schedule information estimator module, be used for business information according to each pre-configured MAC-hs PDU, and the maximum rate of each business wireless access load-bearing and assurance speed, estimate the schedule information of Node B, estimated schedule information is offered the buffer memory capacity calculating sub module each professional MAC-d PDU among each MAC-hs PDU.

The buffer memory capacity calculating sub module is used for according to described schedule information, calculates the shared buffer memory capacity of MAC-hs reorder queue of UE.

Fig. 8 shows another internal structure schematic diagram of MAC-hs reorder queue calculation of capacity module.As shown in Figure 8, this MAC-hs reorder queue calculation of capacity module comprises: schedule information receives submodule and buffer memory calculation of capacity submodule.

Wherein, schedule information receives submodule, is used for receiving the schedule information to each each professional MAC-d PDU of MAC-hs PDU that Node B reports, and the schedule information that is received is offered the buffer memory capacity calculating sub module.

The buffer memory capacity calculating sub module is used for according to described schedule information, calculates the shared buffer memory capacity of MAC-hs reorder queue of UE.

At this moment, Node B further sends to RNC with self to the schedule information of each professional MAC-d PDU among the MAC-hs PDU.

Wherein, the concrete function implementation procedure of MAC-hs reorder queue calculation of capacity module can be consistent with the implementation procedure of description in the step 401 shown in Figure 4.

Enumerate an example at the first method of describing in the step 401 shown in Figure 4 below:

In this example, suppose that the maximum rate of professional RAB is 1024k, guarantee that speed is 256k; The number of priority query is 1, and promptly the M value is 1; The number of MAC-d PDU size is 1, and promptly the k value is 1; The size of the MAC-d PDU that is disposed is 336, and the head size of MAC-d PDU is 0, and the RLC head size is 16.

$\frac{{\mathrm{RAB}}_1\_\mathrm{GuarBitRate}*\mathrm{TTI}}{\mathrm{MAC}-d\_{\mathrm{PDU}}_1\_\mathrm{size}-\mathrm{MAC}-d\_\mathrm{Header}\_\mathrm{size}-\mathrm{AMD}\_\mathrm{Header}\_\mathrm{size}}\≤N_1\≤\frac{{\mathrm{RAB}}_1\_\mathrm{MaxBitRate}*\mathrm{TTI}}{\mathrm{MAC}-d\_{\mathrm{PDU}}_1\_\mathrm{size}-\mathrm{MAC}-d\_\mathrm{Header}\_\mathrm{size}-\mathrm{AMD}\_\mathrm{Header}\_\mathrm{size}}$

Promptly $\frac{256000*5*{10}^{-3}}{336-16}\≤N_1\≤\frac{1024000*5*{10}^{-3}}{336-16}$

That is: 4≤N ₁≤ 16

In this example, for N ₁Value more flexible, N here ₁Suppose that value is 10, then has MAC-hs_reordering_buffer_size:

$\mathrm{MAC}-\mathrm{hs}\_\mathrm{reordering}\_\mathrm{buffer}\_\mathrm{size}$

$=[\underset{i=1}{\overset{k}{\mathrm{\Σ}}}(N_i*\mathrm{MAC}-d\_{\mathrm{PDU}}_i\_\mathrm{size})+k*11]*\mathrm{MAC}-\mathrm{hs}\_\mathrm{receiving}\_\mathrm{window}\_\mathrm{size}$

$=[N_1*336+1*11]*\mathrm{MAC}-\mathrm{hs}\_\mathrm{receiving}\_\mathrm{window}\_\mathrm{size}$

$=3371*\mathrm{MAC}-\mathrm{hs}\_\mathrm{receiving}\_\mathrm{window}\_\mathrm{size}$

The buffer memory capacity of the RNC side RLC AM entity that can calculate according to formula (9) with the MAC-hs_reordering_buffer_size addition of estimation, draws the estimated value of total cache occupation amount of side then.When the heap(ed) capacity in the shared drive pond in the big UE force information of this estimated value, can send the window size by adjusting RLC AM, and/or, RLC AM receiver window size, and/or, MAC-hs receiver window size, to reduce taking of UE shared drive, overflow to avoid UE side internal memory.

Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is preferred embodiment of the present invention; be not to be used to limit protection scope of the present invention; within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. the control method of a user equipment (UE) ability is characterized in that, this method comprises:

Radio network controller (RNC) obtains the scheduling number information of base station node B to each service media access control dedicated channel protocol Data Unit MAC-dPDU among each medium access control shared channel protocol Data Unit MAC-hs PDU;

RNC calculates the shared buffer memory capacity of MAC-hs reorder queue of UE according to described scheduling number information;

RNC calculates total cache occupation amount of UE according to the buffer memory capacity of the affirmation pattern RLC AM entity of shared buffer memory capacity of described MAC-hs reorder queue and the wireless chain control layer that obtains;

RNC is according to the total cache occupation amount of described UE and the heap(ed) capacity in the shared drive pond in the UE ability information, the Control Parameter of configuration UE ability.

2. the method for claim 1, it is characterized in that, the described Node of obtaining B to the scheduling number information of each professional MAC-d PDU among each MAC-hsPDU is: according to the business information among each pre-configured MAC-hsPDU, and the maximum rate of each business wireless access load-bearing and assurance speed, estimate the scheduling number information of NodeB to each professional MAC-d PDU among each MAC-hs PDU;

Perhaps be: obtain the scheduling number information that Node B reports to each professional MAC-d PDU among each MAC-hs PDU.

3. the method for claim 1 is characterized in that, described according to scheduling number information, the shared buffer memory capacity of MAC-hs reorder queue of calculating UE is:

According to described scheduling number information, calculate the size of each MAC-hs PDU, according to the size of described each MAC-hsPDU and the receiver window size of pre-configured each MAC-hs, calculate the shared buffer memory capacity of MAC-hs reorder queue of UE.

4. as each described method in the claim 1 to 3, it is characterized in that the Control Parameter of described UE ability comprises: the affirmation pattern RLC AM of wireless chain control layer sends the window size, and/or, RLCAM receiver window size, and/or, MAC-hs receiver window size.

5. the control system of a user equipment (UE) ability comprises: radio network controller (RNC), NodeB and UE, wherein,

Described Node B is used for each professional MAC-d PDU of each MAC-hs PDU is dispatched, and generates each MAC-hs PDU and sends to UE;

Described UE is used to receive each the MAC-hs PDU from Node B, and described each MAC-hs PDU is assigned to corresponding reorder queue, reorders afterwards and breaks, and obtains each professional MAC-d PDU;

It is characterized in that,

Described RNC is used for obtaining the scheduling number information of Node B to each each professional MAC-d PDU of MAC-hs PDU, according to the shared buffer memory capacity of MAC-hs reorder queue of described scheduling number information calculations UE; According to the buffer memory capacity of shared buffer memory capacity of described MAC-hs reorder queue and the RLC AM entity that obtains, calculate total cache occupation amount of UE; According to the total cache occupation amount of described UE and the heap(ed) capacity in the shared drive pond in the UE ability information, the Control Parameter of configuration UE ability.

6. system as claimed in claim 5 is characterized in that, described RNC comprises:

MAC-hs reorder queue calculation of capacity module, be used for obtaining the scheduling number information of Node B to each each professional MAC-d PDU of MAC-hs PDU, according to the shared buffer memory capacity of MAC-hs reorder queue of described scheduling number information calculations UE, the shared buffer memory capacity of described MAC-hs reorder queue is offered total cache occupation amount computing module;

Total cache occupation amount computing module, be used for buffer memory capacity according to shared buffer memory capacity of described MAC-hs reorder queue and the RLC AM entity that obtains, calculate total cache occupation amount of UE, total cache occupation amount of described UE is offered UE ability control module;

UE ability control module is used for the heap(ed) capacity according to the shared drive pond of the total cache occupation amount of described UE and UE ability information, the Control Parameter of configuration UE ability.

7. as claim 5 or 6 described systems, it is characterized in that described Node B further sends to RNC with self to the scheduling number information of each professional MAC-d PDU among the MAC-hs PDU.

8. a radio network controller (RNC) is characterized in that, this RNC comprises:

MAC-hs reorder queue calculation of capacity module, be used for obtaining the scheduling number information of Node B to each each professional MAC-d PDU of MAC-hs PDU, according to the shared buffer memory capacity of MAC-hs reorder queue of described scheduling number information calculations UE, the shared buffer memory capacity of described MAC-hs reorder queue is offered total cache occupation amount computing module;

Total cache occupation amount computing module, be used for buffer memory capacity according to shared buffer memory capacity of described MAC-hs reorder queue and the RLC AM entity that obtains, calculate total cache occupation amount of UE, total cache occupation amount of described UE is offered UE ability control module;

UE ability control module is used for the heap(ed) capacity according to the shared drive pond of the total cache occupation amount of described UE and UE ability information, the Control Parameter of configuration UE ability.

9. RNC as claimed in claim 8 is characterized in that, described MAC-hs reorder queue calculation of capacity module comprises:

Schedule information estimator module, be used for business information according to each pre-configured MAC-hs PDU, and the maximum rate of each business wireless access load-bearing and assurance speed, estimate the scheduling number information of Node B, described scheduling number information is offered the buffer memory capacity calculating sub module each professional MAC-d PDU among each MAC-hs PDU;

The buffer memory capacity calculating sub module is used for according to described scheduling number information, calculates the shared buffer memory capacity of MAC-hs reorder queue of UE.

10. RNC as claimed in claim 8 is characterized in that, described MAC-hs reorder queue calculation of capacity module comprises:

Schedule information receives submodule, is used for receiving the scheduling number information to each each professional MAC-d PDU of MAC-hs PDU that Node B reports, and described scheduling number information is offered the buffer memory capacity calculating sub module;

The buffer memory capacity calculating sub module is used for according to described scheduling number information, calculates the shared buffer memory capacity of MAC-hs reorder queue of UE.

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