CN102740407B - Uplink dispatch method and system, terminal and base station - Google Patents
Uplink dispatch method and system, terminal and base station Download PDFInfo
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- CN102740407B CN102740407B CN201110089850.XA CN201110089850A CN102740407B CN 102740407 B CN102740407 B CN 102740407B CN 201110089850 A CN201110089850 A CN 201110089850A CN 102740407 B CN102740407 B CN 102740407B
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Abstract
The invention discloses a kind of uplink dispatch method, PRACH preamble signature is at least divided into the two types for indicating the scheduling of short transmission time-interval system and long transmission time-interval system scheduling；Methods described also includes：Terminal determines used short transmission time-interval system or long Transmission Time Interval scheduling mode during uplink random access, and builds the leading of PRACH from preamble signature corresponding with identified scheduling mode, carries out uplink random access.The present invention discloses a kind of uplink dispatching system, terminal and base station.The present invention is directed to network coverage situation and termination property, enhanced dedicated resource is used by terminal dynamic select short transmission time interval scheduling mode or long Transmission Time Interval scheduling mode, so as to both ensure that network coverage, up-high speed rate transmission demand is disclosure satisfy that again.
Description
Technical Field
The present invention relates to an uplink random access technology, and in particular, to an uplink scheduling method and system, a terminal, and a base station in a high speed uplink packet access system.
Background
The high speed uplink packet access technology improves the performance of uplink packet data by means of fast scheduling and physical layer fast retransmission combining. For this reason, the high speed uplink packet access technology introduces a new Transport Channel, an Enhanced Dedicated Transport Channel (E-DCH), for carrying user data, and the E-DCH is an uplink Channel Dedicated for carrying uplink data. In addition, the Physical Channel carrying the enhanced dedicated transport Channel is a Physical Random Access Channel (PRACH).
The terminal has two basic modes of operation, idle mode and connected mode respectively. The connection mode can be further divided into the following different states: a Radio Access network registration area Paging Channel (URA _ PCH) state, a CELL Paging Channel (CELL _ PCH) state, a CELL Forward Access Channel (CELL _ FACH) state, a CELL dedicated Channel (CELL _ DCH) state, and the like of the universal mobile communication system, where these states define the types of physical channels and transport channels that can be used by a terminal.
In the CELL _ FACH state, the terminal may transmit uplink user data through an enhanced dedicated transport channel using a high speed uplink packet access technique when transmitting uplink data. There are two transmission time intervals of the enhanced dedicated transport channel, one is a 2 ms transmission time interval, that is, the enhanced dedicated transport channel is scheduled to transmit the enhanced dedicated transport channel data with an interval period of 2 ms, and the 2 ms transmission time interval is called a short transmission time interval; another is a 10 ms tti, i.e., the enhanced dedicated transport channel is scheduled to transmit data at 10 ms intervals, and such 10 ms tti is called a long tti.
When a terminal performs services such as PUSH Email (PUSH Email) and virtual connection, it needs to frequently send/receive packet data to/from a server. For this, the terminal may implement the service in the CELL _ FACH state, so as to avoid frequent state transition to CELL _ DCH. In addition, the smart phone terminal is used in a Universal Mobile Telecommunications System (UMTS) in a large scale, and needs to improve the utilization efficiency of an uplink, especially the utilization efficiency of an enhanced dedicated transport channel, according to the current network situation.
In the prior art, all common enhanced dedicated transport channel resources can be configured only for short transmission time intervals or only for long transmission time intervals. In view of this major constraint that a large random access channel coverage needs to be ensured, networks often tend to choose scheduling periods configured as long transmission time intervals. This forces terminals with larger power margins to transmit data using lower rates, making the gain from fast scheduling of short transmission time intervals unusable. Meanwhile, those terminals with smaller power headroom cannot benefit from the larger area edge coverage area caused by the scheduling period of the long transmission time interval.
In view of the above limitations, it would be desirable to improve that the common enhanced dedicated transport channel resources in a cell can be used for both short and long transmission time interval scheduling. Aiming at the network coverage condition and the terminal characteristics, the terminal dynamically selects a short transmission time interval or a long transmission time interval to use the enhanced dedicated transmission channel resource, so that the coverage range is ensured, and the high-rate transmission requirement of a user can be met.
Disclosure of Invention
In view of the above, the main objective 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 manner according to a network access status, achieve a high rate of uplink transmission and ensure a large coverage area.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
an uplink scheduling method, dividing the preamble signature of PRACH at least into two types for indicating short transmission time interval mode scheduling and long transmission time interval mode scheduling; the method further comprises the following steps:
the terminal determines a short transmission time interval mode or a long transmission time interval scheduling mode used in uplink random access, selects a preamble signature corresponding to the determined scheduling mode to construct a preamble of the PRACH, and performs uplink random access.
Preferably, the method further comprises:
the network side divides the available preamble signatures of the PRACH into two types used for indicating short transmission time interval mode scheduling and long transmission time interval mode scheduling, and informs the terminal and the base station of the cell where the terminal belongs.
Preferably, the network side is a radio network controller;
the informing of the terminal and the base station to which the cell where the terminal belongs is as follows:
and the wireless network controller respectively informs the terminal and the base station to which the cell of the terminal belongs, or informs the terminal through the base station to which the cell of the terminal belongs.
Preferably, the method further comprises:
and after receiving the forward confirmation sent by the base station to which the cell of the terminal belongs, the terminal uses the determined scheduling mode to schedule the resource bearing the uplink data to be sent, and sends the uplink data.
Preferably, the method further comprises:
the base station of the cell where the terminal is located monitors the PRACH, determines the current scheduling mode according to the preamble signature in the PRACH, and sends forward confirmation to the terminal; and then receiving uplink data by using the determined scheduling mode.
Preferably, the receiving uplink data by using the determined scheduling manner includes:
the base station uses the interval period of the short transmission time interval to schedule E-DCH resources to receive the data of the enhanced dedicated transmission channel;
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 tti scheduling method is that the terminal uses an interval period of the short tti to schedule E-DCH resources to send enhanced dedicated transport channel data;
the long transmission time interval scheduling mode is that the terminal uses the interval period of the long transmission time interval to schedule the E-DCH resource to send the enhanced dedicated transmission channel data.
A terminal includes a receiving unit, a determining unit, and a random access unit, wherein,
a receiving unit, configured to receive a notification that a preamble signature of a PRACH is divided into at least two types for indicating short transmission time interval mode scheduling and long transmission time interval mode scheduling, where the notification is sent by a network side;
a determining unit, configured to determine a short transmission time interval mode or a long transmission time interval scheduling mode used in uplink random access;
and the random access unit is used for selecting the preamble signature corresponding to the determined scheduling mode to construct the preamble of the PRACH and performing uplink random access.
Preferably, the terminal further includes:
and the sending unit is used for carrying out scheduling on the E-DCH resource by using the determined scheduling mode to send the enhanced dedicated transport channel data after the receiving unit receives the forward acknowledgement sent by the base station of the cell of the terminal.
A base station comprising a receiving unit, a listening unit and a transmitting unit, wherein,
a receiving unit, configured to receive a notification that a preamble signature of a PRACH is divided into at least two types for indicating short transmission time interval mode scheduling and long transmission time interval mode scheduling, where the notification is sent by a network side;
the monitoring unit is used for monitoring the PRACH of the terminal and determining the current scheduling mode according to the preamble signature in the PRACH;
a sending unit, configured to send a forward acknowledgement to the terminal;
the receiving unit further schedules the E-DCH resource by using the determined scheduling mode to receive the enhanced dedicated transport channel data.
An uplink scheduling system comprises a network side, a terminal and a base station to which a cell where the terminal is located belongs; wherein,
a network side, configured to divide a preamble signature of a PRACH into at least two types used for indicating short transmission time interval mode scheduling and long transmission time interval mode scheduling, and notify the terminal and a base station to which a cell where the terminal is located belongs;
and the terminal is used for determining a short transmission time interval mode or a long transmission time interval scheduling mode used in uplink random access, selecting a preamble signature corresponding to the determined scheduling mode to construct a preamble of the PRACH, and performing uplink random access.
Preferably, the network side is a radio network controller;
the radio network controller is further configured to respectively notify the terminal and a base station to which the cell where the terminal is located belongs, or notify the terminal through the base station to which the cell where the terminal is located belongs.
Preferably, the terminal is further configured to, after receiving a forward acknowledgement sent by a base station to which a cell in which the terminal belongs, perform scheduling on the E-DCH resource using the determined scheduling method to send enhanced dedicated transport channel data.
Preferably, the base station to which the cell in which the terminal belongs is further configured to monitor a PRACH of the terminal, determine a current scheduling mode according to a preamble signature in the PRACH, and send a forward acknowledgement to the terminal; and then scheduling the E-DCH resource by using the determined scheduling mode to receive the enhanced dedicated transport channel data.
In the invention, the preamble signature of the PRACH is at least divided into two types used for indicating the scheduling of the short transmission time interval mode and the scheduling of the long transmission time interval mode, so that the terminal can use the scheduling of the short transmission time interval mode and the scheduling of the long transmission time interval mode when carrying out uplink data scheduling. The invention uses the enhanced dedicated transmission channel resource by dynamically selecting a short transmission time interval scheduling mode or a long transmission time interval scheduling mode by the terminal according to the network coverage condition and the terminal characteristics, thereby not only ensuring the network coverage range, but also meeting the uplink high-speed transmission requirement.
Drawings
Fig. 1 is a flowchart of a first embodiment of an uplink scheduling method according to the present invention;
fig. 2 is a flowchart of a second uplink scheduling method according to the present invention;
fig. 3 is a flowchart of a third uplink scheduling method according to the present invention;
fig. 4 is a flowchart of a fourth uplink scheduling method according to the present invention;
FIG. 5 is a schematic diagram of a terminal according to the present invention;
fig. 6 is a schematic diagram of a structure of a base station according to the present invention.
Detailed Description
The basic idea of the invention is as follows: by at least dividing the preamble signature of the PRACH into two types used for indicating short transmission time interval mode scheduling and long transmission time interval mode scheduling, the terminal can use the short transmission time interval mode scheduling and the long transmission time interval mode scheduling when performing uplink data scheduling.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings by way of examples.
In the invention, a network side (a wireless network controller and the like) divides available preamble signatures of a preamble part of a physical random access channel carrying an enhanced dedicated transport channel into an available preamble signature subset A and an available preamble signature subset B. Wherein the enhanced dedicated transport channel data is transmitted or received using the available preamble signature subset a to indicate that the enhanced dedicated transport channel is scheduled with an interval period of a short transmission time interval. The enhanced dedicated transport channel data is transmitted or received using the available preamble signature subset B to indicate that the enhanced dedicated transport channel is scheduled with an interval period of a long transmission time interval. The terminal decides the transmission time interval used by uplink (i.e. determines the scheduling mode of uplink data), and informs the base station (node B) of the selected scheduling mode of uplink data by using the available preamble signature subset a or the available preamble signature subset B (scheduling uplink data by using a long time interval mode or scheduling uplink data by using a short time interval mode). The terminal and the node B perform transmission and reception of enhanced dedicated transport channel data at a uniform transmission time interval.
The base station in the present invention mainly refers to a node b (node b), and certainly, for a multi-application communication system, it may be a common base station or an evolved base station, etc.
The essence of the technical solution of the present invention is further clarified by specific examples below.
Example one
This example focuses on the uplink random access and uplink data transmission process at the terminal side, where the terminal resides in a certain cell and is in a cell forward access channel state. Fig. 1 is a flowchart of a first embodiment of an uplink scheduling method according to the present invention, and as shown in fig. 1, the uplink scheduling method specifically includes the following steps:
step 110, the terminal receives a Radio Resource Control (RRC) signaling sent by the rnc in the cell, and obtains the following information from the RRC signaling: available preamble signature subset a and available preamble signature subset B of available preamble signatures of a preamble part of a physical random access channel carrying an enhanced dedicated transport channel. The use of the available preamble signature subset a then indicates that enhanced dedicated transport channel data is transmitted (terminal side) or received (base station side) with a short transmission time interval period for scheduling of the enhanced dedicated transport channel. The use of the available preamble signature subset B then indicates that enhanced dedicated transport channel data is transmitted or received with a long transmission time interval gap period for scheduling of the enhanced dedicated transport channel.
The terminal maintains information of available preamble signature subsets a and available preamble signature subsets B obtained from the radio network controller.
In step 120, it is assumed that the terminal determines to use a short tti for scheduling the e-dch to transmit the e-dch data according to a certain policy. Here, the strategy for scheduling uplink data in the short tti method or the long tti method is configured in advance in the terminal. For example, when the network coverage needs to be ensured, a long-time interval mode is selected to schedule uplink data, and when the data transmission rate needs to be increased, a short-time interval mode is used to schedule uplink data. The configuration of the above-mentioned strategy is easy to implement, and the determination mode of the strategy is not described herein again because it is not a difficult point or a key point for implementing the technical scheme of the present invention.
Step 130, the terminal initiates uplink random access. And the terminal randomly selects a preamble signature in the available preamble signature subset A to construct a preamble of the PRACH, and performs uplink random access.
In step 140, the terminal receives the forward acknowledgement of the acquisition indicator channel from the node B and the enhanced dedicated transport channel resource allocated by the node B for the terminal.
In step 150, the terminal performs scheduling of the enhanced dedicated transport channel at short transmission time intervals to transmit enhanced dedicated transport channel data. After the data transmission is finished, the enhanced dedicated transmission channel resource is released.
Assuming that the terminal determines to use a long tti for scheduling the e-dch to transmit the e-dch data according to a certain policy, step 160.
In step 170, the terminal tries to initiate uplink random access. And the terminal randomly selects a preamble signature from the available preamble signature subset B to construct a PRACH preamble, and performs uplink random access.
In step 180, the terminal receives the forward acknowledgement from the acquisition indicator channel and the enhanced dedicated transport channel resource allocated by the node B for the terminal.
In step 190, the terminal performs scheduling of the enhanced dedicated transport channel at long transmission time intervals to transmit enhanced dedicated transport channel data. After the data transmission is finished, the enhanced dedicated transmission channel resource is released.
It should be noted that, in the present invention, the rnc is only a representative network side, and in other communication networks, the rnc may also be a Mobility Management Entity (MME) or the like, or may also be another network element.
Example two
This example focuses on the process on the base station side. Fig. 2 is a flowchart of a second embodiment of the uplink scheduling method of the present invention, and as shown in fig. 2, the uplink scheduling method of this example specifically includes the following steps:
in step 210, the node B receives a node B application Part protocol (NBAP, node B application Part) signaling sent by the radio network controller, and performs configuration of common enhanced dedicated transport channel operation in the designated cell. The NBAP signaling includes the following information: available preamble signature subset a and available preamble signature subset B of available preamble signatures of a preamble part of a physical random access channel carrying an enhanced dedicated transport channel. Wherein the enhanced dedicated transport channel data is transmitted or received using the available preamble signature subset a to indicate that the enhanced dedicated transport channel is scheduled with an interval period of a short transmission time interval. The enhanced dedicated transport channel data is transmitted or received using the available preamble signature subset B to indicate that the enhanced dedicated transport channel is scheduled with an interval period of a long transmission time interval. The node B saves this information.
In step 220, the node B listens to the physical random access channel initiated by the terminal in the designated cell.
Step 230, 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 a, and the node B records the short transmission time interval used by the terminal.
The node B sends a forward acknowledgement over the acquisition indicator channel, and the enhanced dedicated transport channel resources allocated by the node B for use by the terminal, step 240.
The node B schedules the enhanced dedicated transport channel to receive enhanced dedicated transport channel data at short transmission time intervals, step 250. After the data reception is finished, the enhanced dedicated transport channel resource is released.
In step 260, the node B listens to the physical random access channel initiated by the terminal in the designated cell.
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 the long transmission time interval used by the terminal.
The node B sends a forward acknowledgement through the acquisition indicator channel, and the enhanced dedicated transport channel resources allocated by the node B for use by the terminal, step 280.
In step 290, the node B performs scheduling of the enhanced dedicated transport channel for a long transmission time interval to receive enhanced dedicated transport channel data. After the data reception is finished, the enhanced dedicated transport channel resource is released.
EXAMPLE III
This example focuses on the processing procedure on the network side (network elements such as radio network controller). Fig. 3 is a flowchart of a second embodiment of the uplink scheduling method of the present invention, and as shown in fig. 3, the uplink scheduling method of this example specifically includes the following steps:
in step 310, the rnc decides to configure the common eu-dch operation in the designated cell. The specific configuration comprises the following steps: available preamble signature subset a and available preamble signature subset B of available preamble signatures of a preamble part of a physical random access channel carrying an enhanced dedicated transport channel. Wherein the enhanced dedicated transport channel data is transmitted or received using the available preamble signature subset a to indicate that the enhanced dedicated transport channel is scheduled with an interval period of a short transmission time interval. The enhanced dedicated transport channel data is transmitted or received using the available preamble signature subset B to indicate that the enhanced dedicated transport channel is scheduled with an interval period of a long transmission time interval.
Step 320, the radio network controller sends NBAP signaling to the node B, informing the node B to perform configuration of common enhanced dedicated transport channel operation in the designated cell. The NBAP signaling includes the following information: available preamble signature subset a and available preamble signature subset B of available preamble signatures of a preamble part of a physical random access channel carrying an enhanced dedicated transport channel. The use of the available preamble signature subset a then indicates that enhanced dedicated transport channel data is transmitted or received with a short transmission time interval period for scheduling of the enhanced dedicated transport channel. The use of the available preamble signature subset B then indicates that enhanced dedicated transport channel data is transmitted or received with a long transmission time interval gap period for scheduling of the enhanced dedicated transport channel.
Step 330, the radio network controller sends an RRC signaling to the terminal in the designated cell, where the RRC signaling includes the following information: available preamble signature subset a and available preamble signature subset B of available preamble signatures of a preamble part of a physical random access channel carrying an enhanced dedicated transport channel. Wherein the enhanced dedicated transport channel data is transmitted or received using the available preamble signature subset a to indicate that the enhanced dedicated transport channel is scheduled with an interval period of a short transmission time interval. The enhanced dedicated transport channel data is transmitted or received using the available preamble signature subset B to indicate that the enhanced dedicated transport channel is scheduled with an interval period of a long transmission time interval.
In the invention, the wireless network controller can respectively send NBAP signaling and RRC signaling to the base station and the terminal to inform the division mode of PRACH preamble signature, or can firstly inform the base station through the NBAP signaling and then inform the terminal through the base station. Since the above notification is easy to implement, the detailed implementation of the present invention is not described in detail.
Example four
Fig. 4 is a flowchart of a second embodiment of the uplink scheduling method of the present invention, and as shown in fig. 4, the uplink scheduling method of this example specifically includes the following steps:
the radio network controller decides to configure the common enhanced dedicated transport channel operation in the designated cell, step 410. The specific configuration comprises the following steps: available preamble signature subset a and available preamble signature subset B of available preamble signatures of a preamble part of a physical random access channel carrying an enhanced dedicated transport channel. Wherein the enhanced dedicated transport channel data is transmitted or received using the available preamble signature subset a to indicate that the enhanced dedicated transport channel is scheduled with an interval period of a short transmission time interval. The enhanced dedicated transport channel data is transmitted or received using the available preamble signature subset B to indicate that the enhanced dedicated transport channel is scheduled with an interval period of a long transmission time interval.
Step 420, the radio network controller sends NBAP signaling to the node B, informing the node B to perform configuration of common enhanced dedicated transport channel operation in the designated cell. The NBAP signaling includes the following information: available preamble signature subset a and available preamble signature subset B of available preamble signatures of a preamble part of a physical random access channel carrying an enhanced dedicated transport channel.
The node B saves the above information.
In step 430, the terminal resides in the designated cell and is in a cell forward access channel state. The terminal receives the RRC signaling sent by the radio network controller in the designated cell, and obtains the following information from the RRC signaling: available preamble signature subset a and available preamble signature subset B of available preamble signatures of a preamble part of a physical random access channel carrying an enhanced dedicated transport channel.
The terminal stores the information.
In step 440, the terminal decides to transmit the enhanced dedicated transport channel data using a short tti scheduling for the enhanced dedicated transport channel.
In step 450, the terminal tries to initiate uplink random access in the designated cell. And the terminal randomly selects a preamble signature from the available preamble signature subset A to construct a PRACH preamble, and performs uplink random access.
In step 460, the node B receives the physical random access channel preamble initiated by the terminal in the designated cell.
Step 470, the node B analyzes the preamble signature in the PRACH preamble, determines that the preamble signature belongs to the available preamble signature subset a, and the node B records the short transmission time interval used by the terminal.
The node B sends a forward acknowledgement through the acquisition indicator channel, and the enhanced dedicated transport channel resources allocated by the node B for use by the terminal, step 480. The terminal receives the forward acknowledgement from the acquisition indicator channel and the enhanced dedicated transport channel resources allocated by the node B for the terminal.
In step 490, the terminal performs scheduling of the enhanced dedicated transport channel at short transmission time intervals to transmit enhanced dedicated transport channel data. The node B schedules the enhanced dedicated transport channel to receive enhanced dedicated transport channel data at short transmission time intervals. After the data reception is finished, the enhanced dedicated transport channel resource is released.
In step 500, the terminal decides to transmit the enhanced dedicated transport channel data by scheduling the enhanced dedicated transport channel using a long transmission time interval.
Step 510, the terminal initiates uplink random access in the designated cell. And the terminal randomly selects a preamble signature from the available preamble signature subset B to construct a PRACH preamble, and performs uplink random access.
In step 520, the node B receives the physical random access channel preamble initiated by the terminal in the designated cell.
Step 530, the node B analyzes the preamble signature in the PRACH preamble, determines that the preamble signature belongs to the available preamble signature subset B, and the node B records the long transmission time interval used by the terminal.
The node B sends a forward acknowledgement through the acquisition indicator channel, and the enhanced dedicated transport channel resources allocated by the node B for use by the terminal, step 540. The terminal receives the forward acknowledgement from the acquisition indicator channel and the enhanced dedicated transport channel resources allocated by the node B for the terminal.
In step 550, the terminal performs scheduling of the enhanced dedicated transport channel at long transmission time intervals to transmit enhanced dedicated transport channel data. The node B schedules the enhanced dedicated transport channel for a long transmission time interval to receive enhanced dedicated transport channel data. After the data reception is finished, the enhanced dedicated transport channel resource is released.
Fig. 5 is a schematic diagram of a composition structure of a terminal of the present invention, and 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,
a receiving unit 50, configured to receive a notification that a preamble signature of a PRACH is divided into at least two types for indicating short transmission time interval scheduling and long transmission time interval scheduling, where the notification is sent by a network side;
a determining unit 51, configured to determine a short transmission time interval mode or a long transmission time interval scheduling mode used in uplink random access;
and a random access unit 52, configured to select a preamble signature corresponding to the determined scheduling manner to construct a preamble of the PRACH, and perform uplink random access.
On the basis of the structure shown in fig. 5, the terminal of the present invention further includes:
and a transmitting unit (not shown) configured to, after the receiving unit receives the forward acknowledgement transmitted by the base station to which the cell to which the terminal belongs, schedule the E-DCH resource using the determined scheduling method, and transmit the enhanced dedicated transport channel data.
It should be understood by those skilled in the art that the terminal shown in fig. 5 is mainly used in the foregoing first to fourth embodiments, and the functions of each processing unit in the terminal shown in fig. 5 can be understood by referring to the description related to the foregoing first to fourth embodiments, and the functions of each processing unit can be implemented by a program running on a processor or by a specific logic circuit.
Fig. 6 is a schematic diagram of a configuration of a base station of the present invention, and as shown in fig. 6, the base station of the present invention includes a receiving unit 60, a listening unit 61, and a transmitting unit 62, wherein,
a receiving unit 60, configured to receive a notification that a preamble signature of a PRACH is divided into at least two types for indicating short transmission time interval scheduling and long transmission time interval scheduling, where the notification is sent by a network side;
the monitoring unit 61 is configured to monitor a PRACH of a terminal, and determine a current scheduling mode according to a preamble signature in the PRACH;
a sending unit 62, configured to send a forward acknowledgement to the terminal;
the receiving unit 60 further performs scheduling of the E-DCH resource by using the determined scheduling method to receive the enhanced dedicated transport channel data.
It should be understood by those skilled in the art that the base station shown in fig. 6 is mainly used in the foregoing first to fourth embodiments, and the functions of each processing unit in the base station shown in fig. 6 can be understood by referring to the description related to the foregoing first to fourth embodiments, and the functions of each processing unit can be implemented by a program running on a processor or by a specific logic circuit.
The invention also discloses an uplink scheduling system, which comprises a network side, a terminal and a base station to which the cell of the terminal belongs; wherein,
a network side, configured to divide a preamble signature of a PRACH into at least two types used for indicating short transmission time interval mode scheduling and long transmission time interval mode scheduling, and notify the terminal and a base station to which a cell where the terminal is located belongs;
and the terminal is used for determining a short transmission time interval mode or a long transmission time interval scheduling mode used in uplink random access, selecting a preamble signature corresponding to the determined scheduling mode to construct a preamble of the PRACH, and performing uplink random access.
The network side is a wireless network controller;
the radio network controller is further configured to respectively notify the terminal and a base station to which a cell in which the terminal belongs, or notify the terminal through the base station to which the cell in which the terminal belongs.
The terminal is further configured to, after receiving a forward acknowledgement sent by a base station to which a cell in which the terminal is located belongs, schedule the E-DCH resource using the determined scheduling method to send enhanced dedicated transport channel data.
The base station to which the cell where the terminal belongs is further configured to monitor a PRACH of the terminal, determine a current scheduling mode according to a preamble signature in the PRACH, and send a forward acknowledgement to the terminal; and then scheduling the E-DCH resource by using the determined scheduling mode to receive the enhanced dedicated transport channel data.
It should be understood by those skilled in the art that the uplink scheduling system of the present invention is implemented to implement the foregoing uplink scheduling method, and the present invention has no change in network structure, but the functions implemented by the above network elements are different from those implemented by related network elements in the existing network. Specifically, the uplink scheduling system of the present invention can be understood by referring to the related descriptions of the first to fourth embodiments.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (13)
1. A method for dispatching up run, characterized by, divide into the preamble signature used for pointing out short transmission time interval mode and long transmission time interval mode to dispatch at least in PRACH of physical random access channel; the method further comprises the following steps:
the terminal determines a short transmission time interval mode or a long transmission time interval scheduling mode used when uplink random access is carried out, selects a preamble signature corresponding to the determined scheduling mode to construct a preamble of the PRACH, and carries out uplink random access;
the network side divides the available preamble signatures of the PRACH into two types used for indicating short transmission time interval mode scheduling and long transmission time interval mode scheduling, and informs the terminal and the base station of the cell where the terminal belongs.
2. The method of claim 1, wherein the network side is a radio network controller;
the informing of the terminal and the base station to which the cell where the terminal belongs is as follows:
and the wireless network controller respectively informs the terminal and the base station to which the cell of the terminal belongs, or informs the terminal through the base station to which the cell of the terminal belongs.
3. The method of claim 1, further comprising:
and after receiving the forward confirmation sent by the base station to which the cell of the terminal belongs, the terminal uses the determined scheduling mode to schedule the resource bearing the uplink data to be sent, and sends the uplink data.
4. The method of claim 3, further comprising:
the base station of the cell where the terminal is located monitors the PRACH, determines the current scheduling mode according to the preamble signature in the PRACH, and sends forward confirmation to the terminal; and then receiving uplink data by using the determined scheduling mode.
5. The method of claim 4, wherein the receiving uplink data using the determined scheduling manner comprises:
the base station uses the interval period of the short transmission time interval to schedule the E-DCH resource of the enhanced dedicated transmission channel to receive the data of the enhanced dedicated transmission channel;
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.
6. The method according to any of claims 1 to 4, wherein the short transmission time interval scheduling is such that the terminal uses the interval period of the short transmission time interval to schedule E-DCH resources for transmitting enhanced dedicated transport channel data;
the long transmission time interval scheduling mode is that the terminal uses the interval period of the long transmission time interval to schedule the E-DCH resource to send the enhanced dedicated transmission channel data.
7. A terminal, comprising a receiving unit, a determining unit and a random access unit, wherein,
a receiving unit, configured to receive a notification that a preamble signature of a PRACH is divided into at least two types for indicating short transmission time interval mode scheduling and long transmission time interval mode scheduling, where the notification is sent by a network side;
a determining unit, configured to determine a short transmission time interval mode or a long transmission time interval scheduling mode used in uplink random access;
and the random access unit is used for selecting the preamble signature corresponding to the determined scheduling mode to construct the preamble of the PRACH and performing uplink random access.
8. The terminal of claim 7, further comprising:
and the sending unit is used for carrying out scheduling on the E-DCH resource by using the determined scheduling mode to send the enhanced dedicated transport channel data after the receiving unit receives the forward acknowledgement sent by the base station of the cell of the terminal.
9. A base station comprising a receiving unit, a listening unit and a transmitting unit, wherein,
a receiving unit, configured to receive a notification that a preamble signature of a PRACH is divided into at least two types for indicating short transmission time interval mode scheduling and long transmission time interval mode scheduling, where the notification is sent by a network side;
the monitoring unit is used for monitoring the PRACH of the terminal and determining the current scheduling mode according to the preamble signature in the PRACH;
a sending unit, configured to send a forward acknowledgement to the terminal;
the receiving unit further schedules the E-DCH resource by using the determined scheduling mode to receive the enhanced dedicated transport channel data.
10. An uplink scheduling system comprises a network side, a terminal and a base station to which a cell where the terminal is located belongs; it is characterized in that the preparation method is characterized in that,
a network side, configured to divide a preamble signature of a PRACH into at least two types used for indicating short transmission time interval mode scheduling and long transmission time interval mode scheduling, and notify the terminal and a base station to which a cell where the terminal is located belongs;
and the terminal is used for determining a short transmission time interval mode or a long transmission time interval scheduling mode used in uplink random access, selecting a preamble signature corresponding to the determined scheduling mode to construct a preamble of the PRACH, and performing uplink random access.
11. The system of claim 10, wherein the network side is a radio network controller;
the radio network controller is further configured to respectively notify the terminal and a base station to which the cell where the terminal is located belongs, or notify the terminal through the base station to which the cell where the terminal is located belongs.
12. The system according to claim 10, wherein said terminal is further configured to use the determined scheduling method to schedule E-DCH resources for transmitting enhanced dedicated transport channel data after receiving a forward acknowledgement transmitted by a base station to which a cell in which said terminal is located belongs.
13. The system of claim 12, wherein the base station to which the cell where the terminal is located belongs is further configured to listen to a PRACH of the terminal, determine a current scheduling mode according to a preamble signature in the PRACH, and send a forward acknowledgement to the terminal; and then scheduling the E-DCH resource by using the determined scheduling mode to receive the enhanced dedicated transport channel data.
Priority Applications (2)
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| CN201110089850.XA CN102740407B (en) | 2011-04-11 | 2011-04-11 | Uplink dispatch method and system, terminal and base station |
| PCT/CN2011/082382 WO2012139377A1 (en) | 2011-04-11 | 2011-11-17 | Method, system, terminal, and base station for uplink scheduling |
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| CN201110089850.XA CN102740407B (en) | 2011-04-11 | 2011-04-11 | Uplink dispatch method and system, terminal and base station |
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| CN108476511B (en) * | 2016-02-03 | 2021-09-14 | 华为技术有限公司 | Random access method, device, base station and UE |
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| CN107294897B9 (en) * | 2016-04-01 | 2022-09-09 | 中兴通讯股份有限公司 | Downlink information sending and receiving method and device |
| CN107645777B (en) * | 2016-07-22 | 2020-05-26 | 上海朗帛通信技术有限公司 | Method and device in wireless transmission |
| US20180035470A1 (en) * | 2016-07-28 | 2018-02-01 | Asustek Computer Inc. | Method and apparatus for improving msg3 transmission of random access procedure in a wireless communication system |
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