CN102740407A - Method and system for uplink scheduling, terminal and base station - Google Patents

Abstract

The present invention discloses an uplink scheduling method, which divides the preamble signature of PRACH into at least two types for indicating short transmission time interval scheduling and long transmission time interval scheduling; the method further includes: the terminal determines the uplink random access The short transmission time interval mode or the long transmission time interval scheduling mode used at the time of entry, and the preamble signature corresponding to the determined scheduling mode is selected to construct the preamble of the PRACH for uplink random access. The invention also discloses an uplink scheduling system, a terminal and a base station. According to the network coverage and terminal characteristics, the present invention dynamically selects the short transmission time interval scheduling mode or the long transmission time interval scheduling mode to use the enhanced dedicated transmission channel resources, thereby ensuring the network coverage and meeting the high uplink rate Transport needs.

Description

Uplink scheduling method and system, terminal and base station

technical field

The present invention relates to an uplink random access technology, in particular to an uplink scheduling method and system, a terminal and a base station in a high-speed uplink packet access system.

Background technique

The high-speed uplink packet access technology improves the performance of uplink packet data through fast scheduling and fast retransmission combining at the physical layer. For this reason, the high-speed uplink packet access technology introduces a new transport channel—Enhanced Dedicated Transport Channel (E-DCH, Enhanced Dedicated Transport Channel) for carrying user data, and E-DCH is specially used for carrying uplink data uplink channel. In addition, the physical channel carrying the enhanced dedicated transport channel is a Physical Random Access Channel (PRACH, Physical Random Access Channel).

The terminal has two basic operating modes, namely idle mode and connected mode. The connection mode can be further divided into the following different states: URA_PCH, Universal mobile telecommunication system Radio access networkRegister area Paging Channel state, cell paging channel (CELL_PCH, CELL PagingChannel) State, cell forward access channel (CELL_FACH, CELL Forward AccessChannel) state and cell dedicated channel (CELL_DCH, CELL Dedicated Channel) state, etc. These states define the types of physical channels and transmission channels that the terminal can use.

In the CELL_FACH state, when sending uplink data, the terminal can use the high-speed uplink packet access technology to send uplink user data through the enhanced dedicated transmission channel. There are two transmission time intervals of the enhanced dedicated transmission channel, one is the transmission time interval of 2 milliseconds, that is, the scheduling of the enhanced dedicated transmission channel is carried out at an interval of 2 milliseconds to send the enhanced dedicated transmission channel data. The transmission time interval of 2 milliseconds is called the short transmission time interval; the other is the transmission time interval of 10 milliseconds, that is, the enhanced dedicated transmission channel is scheduled at an interval of 10 milliseconds to send the enhanced dedicated transmission channel data. A transmission time interval of 10 milliseconds is called a long transmission time interval.

When the terminal carries out services such as email push (PUSH Email) and virtual connection, it needs to frequently send/receive small packets of data with the server. In view of this, the terminal can adopt the resident CELL_FACH state to implement the above services, so as to avoid frequent transition to the CELL_DCH state. In addition, smartphone terminals have been widely used in Universal Mobile Telecommunications System (UMTS, Universal Mobile Telecommunications System), and it is necessary to focus on improving the use efficiency of the uplink according to the current network situation, especially the enhanced dedicated transmission channel. Use efficiency.

In the prior art, all public enhanced dedicated transmission channel resources can only be configured as short transmission time intervals, or can only be configured as long transmission time intervals. Considering the main constraint of ensuring a large random access channel coverage, the network usually tends to choose a scheduling period configured with a long transmission time interval. In this way, those terminals with a larger power headroom are forced to use a lower rate to transmit data, making the gains brought by the fast scheduling of short transmission time intervals unavailable. At the same time, those terminals with a small power headroom cannot benefit from the larger cell edge coverage brought about by the scheduling period of the long transmission time interval.

Considering the above limitations, it is desired to make the following improvement, the common enhanced dedicated transmission channel resources in the cell can be used for scheduling both short transmission time intervals and long transmission time intervals. According to the network coverage and terminal characteristics, the terminal dynamically selects the short transmission time interval or the long transmission time interval to use the enhanced dedicated transmission channel resource, so as to ensure the coverage and meet the user's high-speed transmission requirements.

Contents of the invention

In view of this, the main purpose of the present invention is to provide an uplink scheduling method and system, a terminal and a base station, which can select an appropriate uplink scheduling method according to the network access situation, realize a high rate of uplink transmission and ensure a large coverage scope.

In order to achieve the above object, technical solution of the present invention is achieved in that way:

An uplink scheduling method, at least dividing the preamble signature of the PRACH into two types for indicating short transmission time interval mode scheduling and long transmission time interval mode scheduling; the method also includes:

The terminal determines the short transmission time interval mode or the long transmission time interval scheduling mode used in the uplink random access, and selects the preamble signature corresponding to the determined scheduling mode to construct the preamble of the PRACH, and performs the uplink random access.

Preferably, the method also includes:

The network side divides the available preamble signatures of the PRACH into two types for indicating short transmission time interval scheduling and long transmission time interval scheduling, and notifies the terminal and the base station of the cell where the terminal is located.

Preferably, the network side is a wireless network controller;

The notification to the terminal and the base station to which the cell where the terminal belongs is:

The radio network controller notifies the terminal and the base station of the cell where the terminal is located respectively, or the radio network controller notifies the terminal through the base station of the cell where the terminal is located.

Preferably, the method also includes:

After receiving the forward acknowledgment sent by the base station to which the cell the terminal belongs to, the terminal uses the determined scheduling mode to schedule resources bearing uplink data to be sent, and send uplink data.

Preferably, the method also includes:

The base station of the cell where the terminal is located listens to the PRACH, determines the current scheduling mode according to the preamble signature in the PRACH, and sends a forward confirmation to the terminal; then receives uplink data using the determined scheduling mode.

Preferably, the receiving uplink data using the determined scheduling method is:

The base station uses the interval period of the short transmission time interval to schedule the E-DCH resource to receive the enhanced dedicated transmission channel data;

Or, the base station uses the interval period of the long transmission time interval to schedule the E-DCH resource to receive the enhanced dedicated transmission channel data.

Preferably, the short transmission time interval scheduling method is that the terminal uses the interval period of the short transmission time interval to schedule E-DCH resources to send enhanced dedicated transmission channel data;

The long transmission time interval scheduling manner is that the terminal uses the interval period of the long transmission time interval to schedule E-DCH resources to send enhanced dedicated transmission channel data.

A terminal, including a receiving unit, a determining unit, and a random access unit, wherein,

The receiving unit is used to receive the notification sent by the network side that divides the preamble signature of the PRACH into at least two types for indicating scheduling in a short transmission time interval mode and scheduling in a long transmission time interval mode;

A determining unit, configured to determine the short transmission time interval mode or the long transmission time interval scheduling mode used during uplink random access;

The random access unit is configured to select a preamble signature corresponding to the determined scheduling mode to construct a preamble of the PRACH, and perform uplink random access.

Preferably, the terminal further includes:

The sending unit is configured to, after the receiving unit receives the forward acknowledgment sent by the base station of the cell where the terminal is located, use the determined scheduling method to schedule E-DCH resources to send enhanced dedicated transport channel data.

A base station, including a receiving unit, a listening unit and a sending unit, wherein,

The receiving unit is used to receive the notification sent by the network side that divides the preamble signature of the PRACH into at least two types for indicating scheduling in a short transmission time interval mode and scheduling in a long transmission time interval mode;

The listening unit is configured to listen to the PRACH of the terminal, and determine the current scheduling mode according to the preamble signature in the PRACH;

a sending unit, configured to send a forward confirmation to the terminal;

The receiving unit further utilizes the determined scheduling method to schedule E-DCH resources to receive enhanced dedicated transport channel data.

An uplink scheduling system, including a network side, a terminal, and a base station to which the cell where the terminal is located; wherein,

The network side is used to divide the preamble signature of the PRACH into at least two types used to indicate short transmission time interval scheduling and long transmission time interval scheduling, and notify the terminal and the base station to which the cell where the terminal is located belongs;

The terminal is used to determine the short transmission time interval mode or the long transmission time interval scheduling mode used in the uplink random access, and select the preamble signature corresponding to the determined scheduling mode to construct the preamble of the PRACH, and perform the uplink random access.

Preferably, the network side is a wireless network controller;

The radio network controller is further configured to separately notify the terminal and the base station to which the cell where the terminal belongs, or notify the terminal through the base station to which the cell where the terminal belongs.

Preferably, the terminal is further configured to, after receiving the forward acknowledgment sent by the base station of the cell where the terminal is located, use the determined scheduling method to schedule E-DCH resources to send Enhanced Dedicated Transport Channel data.

Preferably, the base station of the cell where the terminal is located is further configured to listen to the PRACH of the terminal, determine the current scheduling mode according to the preamble signature in the PRACH, and send a forward confirmation to the terminal; then use the determined Scheduling E-DCH resources to receive enhanced dedicated transport channel data.

In the present invention, by at least dividing the preamble signature of the PRACH into two types for indicating short transmission time interval scheduling and long transmission time interval scheduling, it is realized that the terminal can use short transmission time when scheduling uplink data. The scheduling in the interval mode can also be used in the scheduling in the long transmission time interval mode. According to the network coverage and terminal characteristics, the present invention dynamically selects the short transmission time interval scheduling mode or the long transmission time interval scheduling mode to use the enhanced dedicated transmission channel resources, thereby ensuring the network coverage and meeting the high uplink rate Transport needs.

Description of drawings

FIG. 1 is a flowchart of Embodiment 1 of the uplink scheduling method of the present invention;

FIG. 2 is a flow chart of Embodiment 2 of the uplink scheduling method of the present invention;

FIG. 3 is a flowchart of Embodiment 3 of the uplink scheduling method of the present invention;

FIG. 4 is a flow chart of Embodiment 4 of the uplink scheduling method of the present invention;

FIG. 5 is a schematic diagram of the composition and structure of the terminal of the present invention;

FIG. 6 is a schematic diagram of the composition and structure of the base station of the present invention.

Detailed ways

The basic idea of the present invention is: by dividing the preamble signature of PRACH into at least two types used to indicate short transmission time interval scheduling and long transmission time interval scheduling, it is realized that when the terminal performs uplink data scheduling, it can use both The scheduling of the short transmission time interval mode can also be used for the scheduling of the long transmission time interval mode.

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail by citing the following embodiments and referring to the accompanying drawings.

In the present invention, the network side (radio network controller, etc.) divides the available preamble signatures of the preamble part of the physical random access channel bearing the enhanced dedicated transport channel into the available preamble signature subset A and the available preamble signature subset B. Wherein, using the available preamble signature subset A indicates that the interval period of the short transmission time interval is used to schedule the enhanced dedicated transport channel to send or receive the enhanced dedicated transport channel data. The available preamble signature subset B is used to indicate that the interval period of the long transmission time interval is used to schedule the enhanced dedicated transport channel to send or receive the enhanced dedicated transport channel data. The terminal decides the transmission time interval used for uplink (that is, determines the scheduling method of uplink data), and notifies the base station (Node B) of the selected uplink data scheduling method by using the available preamble signature subset A or the available preamble signature subset B (Scheduling uplink data in a long time interval mode or scheduling uplink data in a short time interval mode). The terminal and the node B send and receive data on the enhanced dedicated transport channel at consistent transmission time intervals.

In the present invention, the base station mainly refers to a Node B (Node B). Of course, for a multi-application communication system, it may also be a common base station or an evolved base station.

The essence of the technical solution of the present invention is further clarified through specific examples below.

Embodiment one

This example focuses on the uplink random access and uplink data transmission process on the terminal side. The terminal resides in a certain cell and is in the forward access channel state of the cell. Fig. 1 is a flow chart of Embodiment 1 of the uplink scheduling method of the present invention. As shown in Fig. 1, the uplink scheduling method in this example specifically includes the following steps:

Step 110, the terminal receives the radio resource control (RRC, Radio Resource Control) signaling sent by the radio network controller in the cell where it resides, and obtains the following information from it: the preamble of the physical random access channel carrying the enhanced dedicated transport channel The available preamble signature subset A and the available preamble signature subset B of the available preamble signatures. The use of the available preamble signature subset A indicates that the interval period of the short transmission time interval is used to schedule the enhanced dedicated transport channel to send (terminal side) or receive (base station side) enhanced dedicated transport channel data. The use of the available preamble signature subset B indicates that the EDTCH data is sent or received by using the interval period of the long transmission time interval to schedule the EDTCH.

The terminal saves the information of the available preamble signature subset A and the available preamble signature subset B obtained from the radio network controller.

In step 120, it is assumed that the terminal decides to use the short transmission time interval to schedule the E-DTC to send E-DTC data according to a certain strategy. Here, the policy of scheduling uplink data in a short transmission time interval mode or in a long transmission time interval mode is pre-configured in the terminal. For example, when the network coverage needs to be guaranteed, the uplink data is scheduled in a long time interval mode, and the uplink data is scheduled in a short time interval mode when the data transmission rate needs to be increased. The configuration of the above strategies is easy to implement, and since it is not a difficult point or a key point in implementing the technical solution of the present invention, the manner of determining the strategies will not be repeated here.

Step 130, the terminal initiates uplink random access. The terminal randomly selects a preamble signature from the available preamble signature subset A to construct a preamble of the PRACH, and performs uplink random access.

Step 140, the terminal downlink receives the forward acknowledgment of the acquisition indication channel from the Node B, and the enhanced dedicated transmission channel resource allocated by the Node B for the terminal.

Step 150, the terminal performs EDTC scheduling at short transmission time intervals to send EDTCH data. After the data transmission ends, the enhanced dedicated transmission channel resources are released.

In step 160, it is assumed that the terminal decides to use a long transmission time interval to schedule the E-DTC to send E-DTC data according to a certain strategy.

Step 170, the terminal attempts to initiate uplink random access. The terminal randomly selects a preamble signature from the available preamble signature subset B to construct a PRACH preamble, and performs uplink random access.

Step 180, the terminal receives downlink the forward acknowledgment from the acquisition indication channel, and the enhanced dedicated transmission channel resources allocated by the Node B for the terminal.

Step 190, the terminal performs EDTC scheduling at long transmission time intervals to send EDTCH data. After the data transmission ends, the enhanced dedicated transmission channel resources are released.

It should be noted that, in the present invention, the radio network controller is only a representative of the network side, and in other communication networks, it may also be a mobility management entity (MME, Mobile Management Entity), etc., of course, it may also be other network element.

Embodiment two

This example focuses on the processing on the base station side. Fig. 2 is a flow chart of Embodiment 2 of the uplink scheduling method of the present invention. As shown in Fig. 2, the uplink scheduling method of this example specifically includes the following steps:

Step 210, the Node B receives the Node B Application Part protocol (NBAP, NodeB Application Part) signaling sent by the radio network controller, and configures the public enhanced dedicated transport channel operation in the designated cell. The NBAP signaling includes the following information: the available preamble signature subset A and the available preamble signature subset B of the available preamble signatures of the preamble part of the physical random access channel carrying the enhanced dedicated transport channel. Wherein, the available preamble signature subset A indicates that the interval period of the short transmission time interval is used to schedule the enhanced dedicated transport channel to send or receive the enhanced dedicated transport channel data. The available preamble signature subset B indicates that the interval period of the long transmission time interval is used to schedule the enhanced dedicated transport channel to send or receive enhanced dedicated transport channel data. Node B saves this information.

In step 220, the Node B monitors the physical random access channel initiated by the terminal in the specified cell.

In step 230, the Node B analyzes the preamble signature in the preamble of the PRACH, judges that the preamble signature belongs to the available preamble signature subset A, and the Node B records that the terminal uses a short transmission time interval.

In step 240, the Node B sends a forward acknowledgment through the acquisition indicator channel, and the enhanced dedicated transmission channel resource allocated by the Node B for the terminal.

In step 250, Node B performs EDTC scheduling at short transmission time intervals to receive EDTCH data. After the data reception ends, the enhanced dedicated transmission channel resources are released.

Step 260, the Node B senses the physical random access channel initiated by the terminal in the specified cell.

In step 270, the Node B analyzes the preamble signature in the preamble of the PRACH, determines that the preamble signature belongs to the available preamble signature subset B, and the Node B records that the terminal uses a long transmission time interval.

In step 280, the Node B sends a forward acknowledgment through the acquisition indication channel, and the enhanced dedicated transmission channel resource allocated by the Node B for the terminal.

In step 290, Node B performs EDTC scheduling at long transmission time intervals to receive EDTCH data. After the data reception ends, the enhanced dedicated transmission channel resources are released.

Embodiment three

This example focuses on describing the processing process at the network side (network elements such as the radio network controller). Fig. 3 is a flow chart of Embodiment 2 of the uplink scheduling method of the present invention. As shown in Fig. 3, the uplink scheduling method in this example specifically includes the following steps:

Step 310, the radio network controller decides to configure the common enhanced dedicated transport channel operation in the specified cell. The specific configuration includes: the available preamble signature subset A and the available preamble signature subset B of the available preamble signatures of the preamble part of the physical random access channel carrying the enhanced dedicated transport channel. Wherein, the available preamble signature subset A indicates that the interval period of the short transmission time interval is used to schedule the enhanced dedicated transport channel to send or receive the enhanced dedicated transport channel data. The available preamble signature subset B indicates that the interval period of the long transmission time interval is used to schedule the enhanced dedicated transport channel to send or receive enhanced dedicated transport channel data.

In step 320, the radio network controller sends NBAP signaling to the Node B, informing the Node B to configure the common enhanced dedicated transport channel operation in the specified cell. The NBAP signaling includes the following information: the available preamble signature subset A and the available preamble signature subset B of the available preamble signatures of the preamble part of the physical random access channel carrying the enhanced dedicated transport channel. Using the subset A of the available preamble signatures indicates that the interval period of the short transmission time interval is used to schedule the enhanced dedicated transport channel to send or receive the enhanced dedicated transport channel data. The use of the available preamble signature subset B indicates that the EDTCH data is sent or received by using the interval period of the long transmission time interval to schedule the EDTCH.

Step 330, the radio network controller sends RRC signaling to the terminal in the designated cell, and the RRC signaling includes the following information: the available preamble signature of the preamble part of the physical random access channel carrying the enhanced dedicated transport channel Set A and subset B of available leading signatures. Wherein, the available preamble signature subset A indicates that the interval period of the short transmission time interval is used to schedule the enhanced dedicated transport channel to send or receive the enhanced dedicated transport channel data. The available preamble signature subset B indicates that the interval period of the long transmission time interval is used to schedule the enhanced dedicated transport channel to send or receive enhanced dedicated transport channel data.

In the present invention, the radio network controller can send NBAP signaling and RRC signaling to the base station and the terminal to notify the division method of the PRACH preamble signature, or first notify the base station through the NBAP signaling, and then the base station notifies the terminal. Since it is easy to implement the above-mentioned notification, the present invention does not repeat the specific implementation manner thereof.

Embodiment four

Fig. 4 is a flow chart of Embodiment 2 of the uplink scheduling method of the present invention. As shown in Fig. 4, the uplink scheduling method in this example specifically includes the following steps:

Step 410, the radio network controller decides to configure the public enhanced dedicated transport channel operation in the specified cell. The specific configuration includes: the available preamble signature subset A and the available preamble signature subset B of the available preamble signatures of the preamble part of the physical random access channel carrying the enhanced dedicated transport channel. Wherein, the available preamble signature subset A indicates that the interval period of the short transmission time interval is used to schedule the enhanced dedicated transport channel to send or receive the enhanced dedicated transport channel data. The available preamble signature subset B indicates that the interval period of the long transmission time interval is used to schedule the enhanced dedicated transport channel to send or receive enhanced dedicated transport channel data.

Step 420, the radio network controller sends NBAP signaling to the Node B, informing the Node B to configure the common enhanced dedicated transport channel operation in the specified cell. The NBAP signaling includes the following information: the available preamble signature subset A and the available preamble signature subset B of the available preamble signatures of the preamble part of the physical random access channel carrying the enhanced dedicated transport channel.

Node B saves the above information.

Step 430, the terminal camps in the specified cell, and is in the state of the forward access channel of the cell. The terminal receives the RRC signaling sent by the radio network controller in the designated cell, and obtains the following information: the available preamble signature subset A and the available Preamble signature subset B.

The terminal saves the above information.

Step 440, the terminal decides to use the short transmission time interval to schedule the enhanced dedicated transport channel to send the enhanced dedicated transport channel data.

Step 450, the terminal attempts to initiate uplink random access in the specified cell. The terminal randomly selects a preamble signature from the available preamble signature subset A to construct a PRACH preamble, and performs uplink random access.

Step 460, the Node B receives the PRACH preamble initiated by the terminal in the specified cell.

Step 470, Node B parses the preamble signature in the PRACH preamble, judges that the preamble signature belongs to the available preamble signature subset A, and Node B records that the terminal uses the short transmission time interval.

In step 480, the Node B sends a forward acknowledgment through the acquisition indicator channel, and the enhanced dedicated transmission channel resource allocated by the Node B for the terminal. The terminal receives the forward acknowledgment from the acquisition indication channel in downlink, and the enhanced dedicated transmission channel resource allocated by the Node B for the terminal.

In step 490, the terminal performs EDTC scheduling at short transmission time intervals to send EDTCH data. The Node B performs scheduling of the E-DTC at short transmission time intervals to receive E-DTC data. After the data reception ends, the enhanced dedicated transmission channel resources are released.

Step 500, the terminal decides to use the long transmission time interval to schedule the enhanced dedicated transport channel to send the enhanced dedicated transport channel data.

Step 510, the terminal initiates uplink random access in the designated cell. The terminal randomly selects a preamble signature from the available preamble signature subset B to construct a PRACH preamble, and performs uplink random access.

Step 520, Node B receives the PRACH preamble initiated by the terminal in the designated cell.

Step 530, Node B analyzes the preamble signature in the PRACH preamble, judges that the preamble signature belongs to the available preamble signature subset B, and Node B records that the terminal uses a long transmission time interval.

In step 540, the Node B sends a forward acknowledgment through the acquisition indicator channel, and the enhanced dedicated transmission channel resource allocated by the Node B for the terminal. The terminal receives the forward acknowledgment from the acquisition indication channel in downlink, and the enhanced dedicated transmission channel resource allocated by the Node B for the terminal.

Step 550, the terminal performs EDTC scheduling at long transmission time intervals to send EDTCH data. The Node B performs scheduling of the E-DTC at long transmission time intervals to receive E-DTC data. After the data reception ends, the enhanced dedicated transmission channel resources are released.

FIG. 5 is a schematic diagram of the composition and structure of the terminal of the present invention. As shown in FIG. 5, the terminal of the present invention includes a receiving unit 50, a determining unit 51, and a random access unit 52, wherein,

The receiving unit 50 is configured to receive the notification sent by the network side that divides the preamble signature of the PRACH into at least two types for indicating scheduling in a short transmission time interval mode and scheduling in a long transmission time interval mode;

A determining unit 51, configured to determine the short transmission time interval mode or the long transmission time interval scheduling mode used during uplink random access;

The random access unit 52 is configured to select a preamble signature corresponding to the determined scheduling mode to construct a preamble of the PRACH, and perform uplink random access.

On the basis of the structure shown in Figure 5, the terminal of the present invention also includes:

A sending unit (not shown), configured to use the determined scheduling method to schedule E-DCH resources to send enhanced dedicated Transmit channel data.

Those skilled in the art should understand that the terminal shown in Figure 5 is mainly used in the aforementioned Embodiment 1 to Embodiment 4, and the functions of each processing unit in the terminal shown in Figure 5 can refer to the relevant descriptions of the aforementioned Embodiment 1 to Embodiment 4 However, it should be understood that the functions of each processing unit may be realized by a program running on a processor, or may be realized by a specific logic circuit.

FIG. 6 is a schematic diagram of the structure of the base station of the present invention. As shown in FIG. 6, the base station of the present invention includes a receiving unit 60, a listening unit 61, and a sending unit 62, wherein,

The receiving unit 60 is configured to receive a notification sent by the network side that divides the preamble signature of the PRACH into at least two types for indicating scheduling in a short transmission time interval mode and scheduling in a long transmission time interval mode;

The listening unit 61 is configured to listen to the PRACH of the terminal, and determine the current scheduling method according to the preamble signature in the PRACH;

A sending unit 62, configured to send a forward confirmation to the terminal;

The above-mentioned receiving unit 60 further uses the determined scheduling method to schedule E-DCH resources to receive the enhanced dedicated transport channel data.

Those skilled in the art should understand that the base station shown in Figure 6 is mainly used in the first to fourth embodiments described above, and the functions of each processing unit in the base station shown in Figure 6 can refer to the relevant descriptions of the first to fourth embodiments above However, it should be understood that the functions of each processing unit may be realized by a program running on a processor, or may be realized by a specific logic circuit.

The present invention also describes an uplink scheduling system, including a network side, a terminal, and a base station to which the cell where the terminal is located; wherein,

The network side is used to divide the preamble signature of the PRACH into at least two types used to indicate short transmission time interval scheduling and long transmission time interval scheduling, and notify the terminal and the base station to which the cell where the terminal is located belongs;

The terminal is used to determine the short transmission time interval mode or the long transmission time interval scheduling mode used in the uplink random access, and select the preamble signature corresponding to the determined scheduling mode to construct the preamble of the PRACH, and perform the uplink random access.

The aforementioned network side is a wireless network controller;

The wireless network controller is further configured to notify the terminal and the base station to which the cell where the terminal belongs respectively, or notify the terminal through the base station to which the cell where the terminal belongs.

The above-mentioned terminal is further configured to, after receiving the forward acknowledgment sent by the base station of the cell where the terminal is located, use the determined scheduling method to schedule E-DCH resources and send EDTCH data.

The base station to which the above-mentioned terminal belongs is further used to listen to the PRACH of the terminal, determine the current scheduling method according to the preamble signature in the PRACH, and send a forward confirmation to the terminal; then use the determined scheduling method to perform Scheduling of E-DCH resources to receive Enhanced Dedicated Transport Channel data.

Those skilled in the art should understand that the uplink scheduling system of the present invention is implemented to realize the above-mentioned uplink scheduling method, and the present invention does not change the network structure, only the functions realized by the above-mentioned network elements are consistent with the existing network The functions implemented by the relevant network elements in the network are different. Specifically, the uplink scheduling system of the present invention can be understood with reference to the relevant descriptions of the first embodiment to the fourth embodiment above.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention.

Claims (14)

1. A method for uplink scheduling, characterized in that the preamble signature of the physical random access channel PRACH is at least divided into two types for indicating short transmission time interval mode scheduling and long transmission time interval mode scheduling; include: The terminal determines the short transmission time interval mode or the long transmission time interval scheduling mode used in the uplink random access, and selects the preamble signature corresponding to the determined scheduling mode to construct the preamble of the PRACH, and performs the uplink random access. 2. The method according to claim 1, characterized in that the method further comprises: The network side divides the available preamble signatures of the PRACH into two types for indicating short transmission time interval scheduling and long transmission time interval scheduling, and notifies the terminal and the base station of the cell where the terminal is located. 3. The method according to claim 2, wherein the network side is a wireless network controller; The notification to the terminal and the base station to which the cell where the terminal belongs is: The radio network controller notifies the terminal and the base station of the cell where the terminal is located respectively, or the radio network controller notifies the terminal through the base station of the cell where the terminal is located. 4. The method according to claim 2, characterized in that the method further comprises: After receiving the forward acknowledgment sent by the base station to which the cell the terminal belongs to, the terminal uses the determined scheduling mode to schedule resources bearing uplink data to be sent, and send uplink data. 5. method according to claim 4, is characterized in that, described method also comprises: The base station of the cell where the terminal is located listens to the PRACH, determines the current scheduling mode according to the preamble signature in the PRACH, and sends a forward confirmation to the terminal; then receives uplink data using the determined scheduling mode. 6. The method according to claim 5, wherein the receiving uplink data using the determined scheduling method is: The base station uses the interval period of the short transmission time interval to schedule the enhanced dedicated transport channel E-DCH resources to receive the enhanced dedicated transport channel data; Or, the base station uses the interval period of the long transmission time interval to schedule the E-DCH resource to receive the enhanced dedicated transmission channel data. 7. The method according to any one of claims 1 to 5, wherein the short transmission time interval scheduling method is that the terminal uses the interval period of the short transmission time interval to schedule E-DCH resources to transmit Enhanced dedicated transport channel data; The long transmission time interval scheduling manner is that the terminal uses the interval period of the long transmission time interval to schedule E-DCH resources to send enhanced dedicated transmission channel data. 8. A terminal, characterized by comprising a receiving unit, a determining unit, and a random access unit, wherein, The receiving unit is used to receive the notification sent by the network side that divides the preamble signature of the PRACH into at least two types for indicating scheduling in a short transmission time interval mode and scheduling in a long transmission time interval mode; A determining unit, configured to determine the short transmission time interval mode or the long transmission time interval scheduling mode used during uplink random access; The random access unit is configured to select the preamble signature corresponding to the determined scheduling mode to construct the preamble of the PRACH, and perform uplink random access. 9. The terminal according to claim 8, further comprising: The sending unit is configured to, after the receiving unit receives the forward acknowledgment sent by the base station of the cell where the terminal is located, use the determined scheduling method to schedule E-DCH resources to send enhanced dedicated transport channel data. 10. A base station, characterized in that it includes a receiving unit, a listening unit and a sending unit, wherein, The receiving unit is used to receive the notification sent by the network side that divides the preamble signature of the PRACH into at least two types for indicating scheduling in a short transmission time interval mode and scheduling in a long transmission time interval mode; The listening unit is configured to listen to the PRACH of the terminal, and determine the current scheduling mode according to the preamble signature in the PRACH; a sending unit, configured to send a forward confirmation to the terminal; The receiving unit further uses the determined scheduling method to schedule E-DCH resources to receive enhanced dedicated transport channel data. 11. An uplink scheduling system, comprising a network side, a terminal, and a base station to which the cell where the terminal is located; is characterized in that, The network side is used to divide the preamble signature of the PRACH into at least two types used to indicate short transmission time interval scheduling and long transmission time interval scheduling, and notify the terminal and the base station to which the cell where the terminal is located belongs; The terminal is used to determine the short transmission time interval mode or the long transmission time interval scheduling mode used in the uplink random access, and select the preamble signature corresponding to the determined scheduling mode to construct the preamble of the PRACH, and perform the uplink random access. 12. The system according to claim 10, wherein the network side is a wireless network controller; The radio network controller is further configured to separately notify the terminal and the base station to which the cell where the terminal belongs, or notify the terminal through the base station to which the cell where the terminal belongs. 13. The system according to claim 10, wherein the terminal is further configured to, after receiving the forward confirmation sent by the base station of the cell where the terminal is located, use the determined scheduling method to perform E-DCH Scheduling of resources to send Enhanced Dedicated Transport Channel data. 14. The system according to claim 13, wherein the base station of the cell where the terminal is located is further configured to listen to the PRACH of the terminal, determine the current scheduling mode according to the preamble signature in the PRACH, and send The terminal sends a forward acknowledgment; then uses the determined scheduling method to schedule E-DCH resources to receive enhanced dedicated transport channel data. the

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