KR20110118130A - Method and system for configuring and processing buffer of porcesses - Google Patents

Abstract

The present invention provides a method and system for setting and processing a process buffer. In the above method, after the base station and the user terminal start the downlink semi-persistent scheduling HS-SCCH Less operation, the base station and the user terminal perform HS-SCCH Less according to the predefined buffer reservation mode or the buffer indication information of the network device. Reserving the buffers required for the task, allocating the reserved buffers required for the HS-SCCH Less task to the HS-SCCH Less task and assigning the high speed downlink packet access (HSDPA) process of the user terminal to the reserved buffer. Limiting the use of other buffers. According to the present invention, a buffer demand problem of the UE during HS-SCCH Less operation can be solved under a condition of not increasing the complexity of the user terminal.

Description

How to set up and process a buffer for a process and its system {METHOD AND SYSTEM FOR CONFIGURING AND PROCESSING BUFFER OF PORCESSES}

TECHNICAL FIELD The present invention relates to the field of wireless communications technologies, and more particularly, to a method and system for setting and processing a buffer of a process during a downlink semi-continuous scheduling (HS-SCCH Less) operation.

Currently, research on continuous packet connectivity (CPC) has started in a low chip rate time division duplex (LCR TDD) system. Its purpose is to improve packet user capacity, reduce UE power consumption, extend UE battery life, and support packet voice (VoIP) services under conditions that do not degrade cell throughput. To increase the VoIP user capacity.

Downlink transmission scheme of VoIP service (downlink semi-continuous scheduling, or downlink) to optimize support for small data packets representing VoIP service and service with high time delay and to reduce control channel overhead. Also referred to as SPS scheduling, or HS-SCCH Less operation, hereinafter abbreviated as 'HS-SCCH Less operation', the NodeB allocates semi-persistent physical resources to the UE through the control channel, which is a high-speed control channel. It is a shared control channel (HS-DSCH, HS-SCCH) of the downlink shared channel (HS-DSCH), the UE performs the transmission of VoIP services within the resource grant range.

In order to support the HS-SCCH Less operation, the UE stores the data waiting for retransmission merge or adds the quantity of Hybrid Automatic Repeat reQuest (HARQ) process to support the HARQ function. In order to realize all this, the UE must add a certain number of buffers. This increases the complexity of the UE and correspondingly increases the cost.

In view of the above problems, according to the embodiment of the present invention, the process of installing and processing a buffer of a process during HS-SCCH Less operation that can satisfy the buffer demand of the UE during HS-SCCH Less operation without increasing the complexity of the UE It is an object of the present invention to provide a method and system.

In the above method, after the base station and the user terminal start the downlink semi-persistent scheduling HS-SCCH Less operation, the base station and the user terminal perform HS-SCCH Less according to the predefined buffer reservation mode or the buffer indication information of the network device. Reserving a buffer required for the task, and allocating a reserved buffer required for the HS-SCCH Less task to the HS-SCCH Less task.

The system includes a radio network controller, a base station, and a user terminal.

The wireless network controller transmits a message including the setting information of the buffer required for the HS-SCCH Less operation to the base station, receives a response message from the base station, and includes the setting information of the buffer available for the HS-SCCH Less operation. Send to the user terminal.

The base station sends a response message from the buffer of the user terminal to the radio network controller according to the received message.

The user terminal sets a reserved buffer required for the HS-SCCH Less task according to the received message to the HS-SCCH Less task, and limits the HSDPA process of the user terminal to the use of the buffer excluding the reserved buffer.

As described above, according to the present invention, a process for reserving a buffer required for the HS-SCCH Less task from the buffer of the user terminal and setting a reserved buffer for the HS-SCCH Less task for the HS-SCCH Less task is performed. In addition, by limiting the high speed downlink packet access HSDPA process of the user terminal to the use of buffers other than the reserved buffer, the buffer of the user terminal required for the HS-SCCH Less operation without increasing the complexity of the user terminal. You can solve the problem.

1 is a signaling interaction flowchart according to Embodiment 1 of the present invention,
2 is a signaling interaction flowchart according to Embodiment 2 of the present invention.

According to an embodiment of the present invention, a portion of the buffer required for the current High Speed Downlink Packet Access (HSDPA) process of the UE is reserved, and the legacy HSDPA is limited to use only a portion of the original buffer. By using the reserved buffer, the HS-SCCH Less operation is supported, thereby realizing the purpose of not adding the buffer amount of the UE.

DETAILED DESCRIPTION Embodiments of the present invention will be described in more detail with reference to the accompanying drawings in order to clarify the purpose, technical solutions and advantages of the embodiments of the present invention.

The following describes the situation in which the RNC sets an additional HS-SCCH Less task to the UE and reserves a buffer for the UE through Example 1 below. The messages described in the present invention are not limited to the types disclosed in the examples.

Example 1

The RNC first notifies the NodeB of the buffer size required for the HS-SCCH Less operation, the NodeB performs the operation of reserving the corresponding buffer, and notifies the RNC of the buffer allocation information. Thereafter, the RNC or NodeB notifies the UE of the buffer allocation information, the UE allocates the reserved buffer required for the HS-SCCH Less task to the HS-SCCH Less task based on the related parameters, and assigns the HSDPA process to the reservation. Restricts the use of buffers other than reserved buffers.

1 is a realization flowchart of Embodiment 1, which includes the following steps:

Step 101: The RNC sends a message containing configuration information of the buffer required for the HS-SCCH Less operation to the NodeB via the Iur / Iub interface, wherein the message is, for example, a radio link setup message or a radio link reset. Message.

The following situation exists in the buffer setting information required for the HS-SCCH Less operation included in the radio link reconfiguration message.

Situation 1, The configuration information is the buffer C _{Less required} for HS-SCCH Less.

The configuration information is the buffer C _{Less required} for the HS-SCCH Less operation. After receiving the configuration information, NodeB performs the conversion between C _Less and the buffer required for the current HSDPA process. If the maximum buffer supported by the UE is C and the maximum process quantity is N, the intermediate process uses it. The possible buffers are C / N, that is, the buffers required for HS-SCCH Less operations correspond to the buffers required for L = [C _Less / (C / N)] processes in legacy HSDPA.

Situation 2, The configuration information is the number of processes of the legacy HSDPA corresponding to the buffer required for HS-SCCH Less operation.

The RNC performs the conversion between the buffer C _{Less required} for the HS-SCCH Less operation and the buffer required for the legacy HSDPA process according to the method of situation 1 to determine the number of buffers to be reserved for the HS-SCCH Less operation, that is, the parameter L. The configuration information is included in the message, which is a radio link reset.

Situation 3, How to reserve a predefined buffer.

RNC and NodeB predefine the size of the buffer required to support the HS-SCCH Less operation as C _Less , and RNC adds indication information to the message to inform NodeB that it should reserve the buffer for HS-SCCH Less. For example, the configuration information is an indication field of 1 bit, and NodeB obtains the number of buffers required for the HS-SCCH Less operation based on a predefined content.

Step 102: After receiving the message, the NodeB performs a task of reserving a buffer required for the HS-SCCH Less operation and returns a response message to the RNC. The response message includes buffer allocation information indicating a buffer required for the HS-SCCH Less operation. The response message may be a radio link setup / reset response message.

The operation of reserving the buffer required for the HS-SCCH Less operation determines whether the number of buffers not currently occupied by the NodeB is equal to or greater than the amount of buffers required for the HS-SCCH Less operation indicated by the received configuration information. If this is the case, NodeB reserves the buffer size C _Less ' (≥ C _Less ) that is available for HS-SCCH Less operations from the unoccupied buffer, and NodeB sends a response message to RNC. Otherwise, NodeB releases some processes according to certain rules, satisfying the demands of the buffers required for the L processes of the HS-SCCH Less job, and then the buffer sizes available for the HS-SCCH Less job from the next unoccupied buffer. Reserve C _Less ' (≥ C _Less ), and send a response message to the RNC.

The law by which NodeB releases a process is one of several.

1) Randomly selected from occupied processes. or

2) Release from the lowest priority process according to the priority of the data stored in the occupied process. or

3) Processes are arranged according to the duration occupied and start releasing from the process with the longest occupancy time. or

4) When the Multiple Input Multiple Output (MIMO) mode is configured for the UE, NodeB releases the occupied processes in pairs, i.e., these processes are used in pairs for MIMO dual stream transmission. For example, in the conventional method, processes whose identifiers are HAP_ID and (HAP_ID + N _proc / 2) mod (N _proc ) are used in pairs during dual stream transmission, and N _proc is a process set in a higher layer. Total number, if N _proc = 16, identifier = 0 and identifier = 8, and in that way, NodeB must release the process with process identifier = 0 and also release process with process identifier = 8.

The buffer allocation information includes any combination of the following parameters: Available buffer size C _Less '(≥ C _Less ) for HS-SCCH Less operation, Available buffer size C- C _Less ' for legacy HSDPA operation of UE. The number of processes available for the legacy HSDPA operation of the UE, e.g., N or (NL), the buffer size set for each HSDPA process, and the process quantity of the legacy HSDPA corresponding to the buffer required for the HS-SCCH Less operation. If NodeB has released at least one process, the buffer allocation information should further include the released process identifier.

In the response message, either default the buffer allocation information or imply that NodeB has already allocated a buffer of size C _{Less required} for the HS-SCCH Less operation, including only a 1-bit indication field, that is, the UE's current HSDPA NL processes are used, the buffer size is C-C _Less , and this implies that NL processes evenly split and use these buffers.

In different situations in step 101, the NodeB obtains the buffer C _{Less required} for the HS-SCCH Less operation, and the buffer allocation information below will be described in detail.

Situation 1: If the buffers are uniformly allocated for each process, NodeB can convert the process quantity L of HSDPA required for HS-SCCH Less operations based on C _Less and buffer size C-C available to HSDPA. _Less and / or parameter L and / or HSDPA notifies the RNC of the number of available processes (NL) and / or the buffer size required for each process as buffer allocation information.

Situation 2: If the buffers are not uniformly allocated to each process, NodeB cannot convert the number of buffers required for HS-SCCH Less operation to process quantity L, so NodeB cannot use HS-SCCH Less among buffers not directly occupied. "with reserves buffer _{(≥ C Less), HS-} SCCH Less work is available buffer size C _Less' work there is an available buffer size C _Less is (≥ C _Less) and / or the current HSDPA of UE available Buffer Size C-C _Less ' and / or HSDPA notifies the RNC of the number of available processes and / or the buffer size required for each process as buffer allocation information.

Situation 3: Except for the above buffer allocation information, if the buffer demand C _Less exceeds the remaining buffer of the UE, NodeB releases at least one process according to the above rule, and the buffer allocation information further adds the identifier of the released process. Include.

Step 103: The RNC transmits a radio resource control (RRC) message including buffer allocation information to the UE via the Uu interface.

Here, NodeB and UE's perception of the buffer size or the number of processes required for HSDPA and HS-SCCH Less operations must match. The RRC message is, for example, a message such as an RRC connection setup message, a radio bearer setup message, an RB reset message or a transport channel reset message.

In addition, in the physical layer control channel through the Uu interface, the NodeB can transmit buffer allocation information to the UE. For example, the buffer allocation information is included in a new control channel format and transmitted. The control channel may be, for example, an HS-SCCH or an Enhanced Dedicated Channel (E-DCH) Absolute Grant Channel (E-AGCH).

Step 104: The UE sets a buffer based on the received buffer allocation information, that is, allocates a buffer reserved for the HS-SCCH Less task to the HS-SCCH Less task, and assigns a process of HSDPA to a buffer other than the reserved buffer. Limit only the buffer to be available and send an RRC response message to the RNC.

The following describes the process of allocating buffers reserved for the HS-SCCH Less task to the HS-SCCH Less task when the buffer allocation information is different.

1) When buffer allocation information is parameter L and / or parameter (N-L):

Allocating buffers reserved for the HS-SCCH Less task to the HS-SCCH Less task assigns the buffers of the L processes to the HS-SCCH Less task.

2) If the buffer allocation information is the buffer size C _Less '(≥ C _Less ) available for the HS-SCCH Less operation and / or the buffer size C- C _Less ' available for the legacy HSDPA of the UE:

Allocating a buffer reserved for the HS-SCCH Less job to the HS-SCCH Less job allocates a buffer of size C _Less ' to the HS-SCCH Less job.

3) When buffer allocation information is set as default:

Allocating a buffer reserved for the HS-SCCH Less task to the HS-SCCH Less task allocates an idle buffer of a predefined size to the HS-SCCH Less task.

If the RRC message received by the UE includes the identifier of the process to release the buffer or the process identifier to provide to the HSDPA for use, the process corresponding to the identifier of the process to which the UE should release the buffer before the UE establishes the buffer. It further comprises the step of releasing.

After the UE has set the buffers required for the HS-SCCH Less operation and then stops the services related to the HS-SCCH Less operation, e.g. the VoIP service, the RNC deletes the HS-SCCH Less operation and the HS-SCCH Less operation. Configure the SCCH Less job to release its own buffer. The following describes the situation in which the RNC releases a buffer occupied by the HS-SCCH Less operation by the UE through the second embodiment.

The implementation process of Embodiment 2 is as shown in FIG.

Step 201: The RNC sends a message to the NodeB via the Iur / Iub interface containing the indication information releasing the buffer occupied by the HS-SCCH Less operation, wherein the message is, for example, a radio link delete / reset message. .

The RNC adds the indication information to the message of the Iur / Iub interface to instruct NodeB to release the buffer occupied by the HS-SCCH Less operation, which is, for example, an identifier of 1 bit.

Step 202: The NodeB returns a response message to the RNC after receiving the message, the response message being, for example, a radio link delete / reset message.

The NodeB may or may not include feedback information in the response message. The feedback information may indicate, for example, that an identifier of 1 bit indicates that NodeB has already successfully released a buffer occupied by the HS-SCCH Less operation. If not included, RNC condone NodeB has already successfully released the buffer occupied by the HS-SCCH Less operation. Successful release of the buffer occupied by the HS-SCCH Less operation indicates that the released buffer is changed back to a buffer available for the current HSDPA.

After receiving the message, NodeB releases the buffer occupied by the HS-SCCH Less operation and includes the reset information of the released buffer in the feedback message sent to the RNC, which is as follows:

1) To which process to release the released buffer, the ID of these processes, and / or

2) The buffer size allocated to each of these processes, for example whether the allocated buffers are allocated equally or individually for each process.

When using the synchronous reset scheme, NodeB preferentially uses the buffer instead of the buffer occupied by the HS-SCCH Less operation before the activation time, that is, before the synchronous radio link resetting process becomes efficient.

Step 203: The RNC transmits an RRC message including indication information indicating the release of the buffer occupied by the HS-SCCH Less operation to the UE via the Uu interface.

Possible solutions for the Uu interface are as follows: The RRC message is a release of a radio bearer (RB), an RB reset, a transport channel reset message, and the like, and the indication information is, for example, 1 bit of identification. The message is not limited to the above type.

The RNC adds indication information to the RRC message to notify the UE to release the buffer occupied by the HS-SCCH Less operation, the indication information being an identifier of 1 bit, for example.

The RNC may inform the UE of the reset information of the released buffer in the RRC message, wherein the reset information is as follows:

1) To which process to release the released buffer, the identifier and / or

2) The buffer size allocated to each of these processes, for example, whether the released buffers are allocated equally or individually.

In addition, in the physical layer control channel through the Uu interface, the NodeB can inform the UE of information indicating the release of the buffer occupied by the HS-SCCH Less operation, for example, to include the indication information in a new control channel format. And the control channel is for example HS-SCCH or E-AGCH.

Step 204: The UE completes the release operation according to the indication information after receiving the RRC message and returns an RRC response message to the RNC.

In addition, the RNC causes the MAC-hs entity of the NodeB and the UE to perform a reset through signaling of the Iur / Iub and Uu interfaces, respectively, and according to the first and second embodiments, the HS-SCCH Less Perform a buffer setting or release of the job.

According to the above embodiment, a system for realizing a method according to an embodiment of the present invention includes a radio network controller, a base station, and a user terminal.

The wireless network controller transmits a message including setting information of a buffer required for the HS-SCCH Less operation to the base station, receives a response message transmitted from the base station, and sends a message to the user terminal of the buffer for which the HS-SCCH Less operation is available. Send a message containing the setting information.

The base station reserves a buffer required for the HS-SCCH Less operation from the buffer of the user terminal according to the message, and returns a response message to the wireless network controller.

The user terminal sets a reserved buffer required for the HS-SCCH Less task according to the received message to the HS-SCCH Less task, and limits the HSDPA process of the user terminal to the use of a buffer other than the reserved buffer. .

The base station determines whether the currently unoccupied buffer of the user terminal is equal to or larger than the buffer required for the HS-SCCH Less operation indicated in the message, and if not, notifies the release unit of the release of the process; And a release unit for releasing the process according to the law to satisfy the buffer demand of the HS-SCCH Less operation, and a reservation unit for reserving the buffer for which the HS-SCCH Less operation is available from the buffer that is not currently occupied by the user terminal. desirable.

The wireless network controller notifies the base station and the user terminal of the conversion unit performing a conversion between the buffer demand of the HS-SCCH Less task and the buffer demand of the current HSDPA process, and the base station and the user terminal. And a notification unit for notifying the base station and the user terminal of the release of the buffer occupied by the SCCH Less task.

The wireless network controller further includes a unit for causing the MAC-hs entity of the base station and the user terminal to perform a reset first, and then set a buffer required for the HS-SCCH Less operation.

The following describes how to use the buffer required for HS-SCCH Less.

The buffer C _{Less required} for the HS-SCCH Less operation is divided into different types of buffers according to the purpose thereof, and in the HS-SCCH Less operation, the different types of buffers store data that did not succeed in decoding. And a buffer that merges and / or decodes the data (the first type is called Type1 and the second type is called Type2).

The method used to calculate the buffer required for the HS-SCCH Less operation is as follows:

C _Less -N _s * α * TBS _max + N _p * β * TBS _max

Among them, the required number of Type1 buffers is N _s . For example, N _s = [4 + PTR) / T], T is a minimum period of semi-continuous resources, and PTR is a Ptr field (or The PTR field is ⁴ bits. For example, if the Ptr field is ⁴ bits, PTR = 2 ^4-1 = 15, and the network side and the UE can grasp the value of the PTR. The side is RNC or NodeB, and the required number of Type2 buffers is N _p . TBS _max is the maximum transport block size supported in the HS-SCCH Less operation, α and β are coefficients for calculating the size of the Type 1 and Type 2 buffers, respectively, and the values of N _p , α and β are predefined. For example, N _p = 2, α = 1.5 and β = 3.

The network side and the UE's perception of how to set the HS-SCCH Less task buffer, for example Type 1 and Type 2, must be consistent, and the implementation is as follows: Calculate the size of Type1 and Type2 buffers by calculating _max .

The RNC notifies the NodeB and the UE of the buffer C _{Less required} for the HS-SCCH Less operation and the minimum period T of the parameter semi-continuous resources, respectively. The process of setting the parameters is performed through the Iub / Iur and Uu interfaces in the above embodiment. -SCCH Less Refer to the procedure for setting the buffer required for the task.

The foregoing is a preferred embodiment of the present invention, but not intended to limit the present invention. Those skilled in the art can make various changes to the present invention. All modifications, equivalent replacements, improvements, and the like, which are performed without departing from the spirit and principles of the present invention, fall within the protection scope of the present invention.

Claims (25)

After the base station and the user terminal start the downlink semi-persistent scheduling HS-SCCH Less operation, the HS-SCCH Less operation is performed according to the predefined buffer reservation mode or the buffer indication information of the network device. Reserving the required buffers,
Allocating a reserved buffer required for the HS-SCCH Less task to an HS-SCCH Less task. The method of claim 1,
After the step of allocating the reserved buffer required for the HS-SCCH Less task to the HS-SCCH Less task, the high-speed downlink packet access (HSDPA) process of the user terminal to a buffer other than the reserved buffer And limiting the use. The method of claim 1,
Wherein the buffer indication information includes indication information indicating a process quantity and / or a buffer quantity in a current high speed downlink packet access (HSDPA) operation, or setting information indicating a buffer required for an HS-SCCH Less operation. How to set and process buffers for your processes. The method of claim 1,
Reserving a buffer required for the HS-SCCH Less operation according to the predefined buffer reservation mode,
Pre-defined buffer size required for HS-SCCH Less operation,
Transmitting a message including information instructing the radio network controller to reserve a buffer required for HS-SCCH Less operation to the base station and the user terminal,
And after the base station and the user terminal have received the message, reserving a buffer of a size required for a predefined HS-SCCH Less task. The method of claim 1,
Reserving a buffer required for the HS-SCCH Less operation based on the buffer indication information of the network device,
Transmitting, by the wireless network controller, a message including setting information of a buffer required for HS-SCCH Less operation to the base station;
After the base station receives the message, the base station reserves a buffer required for the HS-SCCH Less operation, and includes a buffer allocation information including a buffer size available for the HS-SCCH Less operation to the wireless network controller. Sending a message, wherein said method comprises setting and processing a buffer of said process. The method of claim 5,
The buffer allocation information may include buffer sizes available for legacy HSDPA tasks of the user terminal, process quantities available for legacy HSDPA tasks of the user terminal, and buffer demands for HS-SCCH Less tasks represented through process quantities of legacy HSDPA tasks. And a buffer size set in each of the HSDPA processes. 7. The method according to any one of claims 1 to 6,
If the base station determines that the currently unoccupied buffer of the user terminal is less than the buffer C _{Less required} for the HS-SCCH Less operation before the base station reserves the buffer required for the HS-SCCH Less operation, the base station determines a predetermined rule. Releasing a buffer of the corresponding process, and including an identifier of the process to release the buffer in a response message sent to the wireless network controller. The method of claim 7, wherein
The base station
The law of randomly selecting and releasing the occupied processes,
A law that starts releasing from the lowest priority process according to the priority of data stored in the occupied process,
The law that starts releasing from the process with the longest occupancy time, according to the order in which the processes are occupied,
When a multi-input multiple output (MIMO) mode is set in the user terminal, the base station releases a process based on one or any combination of the rules for pairing and releasing a paired process for MIMO dual stream transmission. How to set up and process buffers for characterized processes. The method of claim 5,
The wireless network controller transmitting a message including the configuration information of the buffer required for the HS-SCCH Less operation to the base station,
The wireless network controller converting between the buffer required for the HS-SCCH Less operation and the buffer required for the legacy HSDPA process and converting it to the quantity L of the original HSDPA process;
The wireless network controller transmitting a message including a parameter L and / or a parameter NL to the base station, wherein N is the total process quantity of the user terminal,
The base station reserves a buffer available for HS-SCCH Less operation,
Converting, by the base station, between the buffer required for the HS-SCCH Less operation and the buffer required for the legacy HSDPA process to convert the buffer demand C _Less for the HS-SCCH Less operation based on the parameter L or NL. Setting and processing a buffer for the process. The method of claim 5,
The step of the wireless network controller transmits a message including the setting information of the buffer required for the HS-SCCH Less operation to the base station,
The wireless network controller transmits a parameter C _Less and / or a parameter C-C _Less to the base station, wherein C _Less is a buffer required for HS-SCCH Less operation, and C is a maximum buffer supported by the user terminal. And sending a message comprising a buffer of the process. 7. The method according to any one of claims 1 to 6,
Before performing the step of assigning the reserved buffer required for the HS-SCCH Less task to the HS-SCCH Less task process,
Transmitting, by the wireless network controller, a message including setting information of a buffer available for HS-SCCH Less operation to the user terminal,
And the setting information includes a buffer size C _Less for which HS-SCCH Less operations are available. The method of claim 11,
The configuration information may be obtained through a buffer size C-C _Less available to legacy HSDPA, a process quantity available for legacy HSDPA operations of the user terminal, a buffer size set for each HSDPA process, and / or a process quantity L of legacy HSDPA. HS-SCCH A method of setting up and processing a buffer for a process comprising a buffer demand for the representing less work. 7. The method according to any one of claims 1 to 6,
Before performing the step of assigning the reserved buffer required for the HS-SCCH Less task to the HS-SCCH Less task process,
And the base station notifying the user terminal of setting information of a buffer that is available for HS-SCCH Less operation using a physical layer control channel. The method of claim 11,
The reserved buffer required for the HS-SCCH Less operation when the radio network controller further includes an identifier of a process to release a buffer or a process identifier for providing to HSDPA in the radio resource control message sent to the user terminal. The process corresponding to the process identifier to which the UE should release the buffer before releasing the task to the HS-SCCH Less task or releasing a process other than the process which is provided to HSDPA for use. How to set up and process buffers. The method of claim 11,
Allocating a reserved buffer required for the HS-SCCH Less task to the HS-SCCH Less task,
Calculating, by the base station or the user terminal, different types of buffer sizes during the HS-SCCH Less operation based on the buffer setting information transmitted by the wireless network controller;
And buffers storing different data that are not successfully decoded and / or merged and decoded data. 7. The method according to any one of claims 1 to 6,
Allocating a reserved buffer required for the HS-SCCH Less task to the HS-SCCH Less task, and then releasing the buffer occupied by the HS-SCCH Less task. How to deal. The method of claim 16,
The step of releasing the buffer occupied by the HS-SCCH Less operation,
Sending, by the wireless network controller, a message containing indication information to release a buffer occupied by an HS-SCCH Less operation to the base station;
After the base station receives the message, releasing the buffer occupied by the HS-SCCH Less operation and sending a response message to the wireless network controller;
Notifying, by the radio network controller or the base station, the user terminal of the indication information for releasing a buffer occupied by the HS-SCCH Less operation;
And releasing the buffer occupied by the HS-SCCH Less task based on the indication information received by the user terminal. The method of claim 17,
The step of notifying the user terminal by the radio network controller or the base station of the indication information for releasing the buffer occupied by the HS-SCCH Less operation,
The wireless network controller transmits a message containing instruction information for releasing a buffer occupied by the HS-SCCH Less operation to the user terminal; or
And the base station notifies the user terminal of the instruction information for releasing the buffer occupied by the HS-SCCH Less operation through a physical layer control channel. The method of claim 17,
The reset message included in the response message transmitted from the base station to the wireless network controller, or
A reset information of the released buffer in a message including instruction information for releasing a buffer occupied by the HS-SCCH Less operation transmitted by the radio network controller to the user terminal,
The reset information of the released buffer includes the identifier of the process to which the buffer is allocated and the size of the buffer. The method of claim 17,
Before the base station releases the buffer occupied by the HS-SCCH Less operation, the base station preferentially uses a buffer not occupied by the HS-SCCH Less operation. 7. The method according to any one of claims 1 to 6,
Transmitting, by the wireless network controller, a message including setting information of a buffer required for an HS-SCCH Less operation or an instruction information for releasing a buffer occupied by the HS-SCCH Less operation to the base station or the user terminal. before,
And setting, by the wireless network controller, the MAC-hs entity of the base station and the user terminal to reset through signaling of an Iur / Iub and Uu interface, respectively. How to. In a system for realizing a method according to claim 1,
Sends a message including setting information of the buffer required for the HS-SCCH Less operation to the base station, receives a response message sent from the base station, and includes setting information of the buffer available for the HS-SCCH Less operation to the user terminal. A wireless network controller for sending messages,
A base station which reserves a buffer required for HS-SCCH Less operation from the buffer of the user terminal based on the received message and returns a response message to the wireless network controller;
A user terminal configured to set a reserved buffer required for the HS-SCCH Less task in the HS-SCCH Less task based on the received message and to limit the HSDPA process of the user terminal to the use of a buffer other than the reserved buffer; System comprising a. The method of claim 22,
The base station comprises:
A judging unit for judging whether a buffer not currently occupied by the user terminal is a buffer required for the HS-SCCH Less operation indicated in the message, and if not, notifying a release unit of a process release;
A release unit that releases the process according to a predetermined law to satisfy the buffer demand for HS-SCCH Less operations,
And a reservation unit for reserving a buffer available for HS-SCCH Less operation from a buffer not currently occupied by the user terminal. The method of claim 22,
The wireless network controller,
A conversion unit for converting between the buffer demand of the HS-SCCH Less job and the buffer required for the current HSDPA process;
And a notification unit for notifying the base station and the user terminal of the buffer demand of the HS-SCCH Less operation or notifying the base station and the user terminal of the release of the buffer occupied by the HS-SCCH Less operation. . The method of claim 22,
The wireless network controller,
And causing a MAC-hs entity of the base station and the user terminal to reset, and setting a buffer required for HS-SCCH Less operation.

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