WO2014063572A1

WO2014063572A1 - Method for releasing radio link, controller and terminal

Info

Publication number: WO2014063572A1
Application number: PCT/CN2013/085006
Authority: WO
Inventors: 戚浩峰; 屈炳云
Original assignee: 华为技术有限公司
Priority date: 2012-10-24
Filing date: 2013-10-11
Publication date: 2014-05-01
Also published as: CN103781193A

Abstract

Provided are a method for releasing a radio link, a controller and a terminal,relating to the field of communication technology.Solved is the problem that in the process of releasing a radio link, the transmitting power of a terminal sharply increases or decreases to cause communication between the terminal and a base station to suffer from relatively large interference, reducing the communication quality.The method can specifically include: a controller receiving a connection release completion message, the connection release completion message being used for instructing the controller to delete a first radio link, and the first radio link being used for bearing the data transmitted from a base station controlled by the controller to a terminal; starting a first timer, the timing duration of the first timer being greater than a preset period, and the preset period being a period that the base station transmits a transmitting power control command to the terminal; and when the first timer times out, deleting the first radio link according to the connection release completion message.This can be applied to radio link release.

Description

Wireless link translation method, controller and terminal

This application claims priority to Chinese Patent Application No. 201210410119.7, entitled "Method, Controller and Terminal for Wireless Link Translation", which is filed on October 24, 2012, the entire contents of which are hereby incorporated by reference. Combined in this application. Technical field

The present invention relates to the field of communications technologies, and in particular, to a method, a controller, and a terminal for decoding and releasing a wireless link. Background technique

Before the terminal communicates, it needs to establish a connection with the network device. After the communication ends, it is necessary to connect to the network device, that is, disconnect the terminal from the network device.

The following takes the RRC connection translation in the WCDMA (Wideband Code Division Multiple Access) system as an example to describe the process of translation and connection between the terminal and the network device.

The specific steps of the RRC connection translation may include:

1. The RNC (Radio Network Controller) sends an RRC connection release message to the terminal through a DCCH (Dedicated Control Channel). The RRC connection release message is used to instruct the terminal to delete the bearer terminal to send to the RNC. Wireless link to data:

2. The terminal sends an RRC connection release completion message to the RNC, and starts the T308 timer and the V308 counter, and the V308 counter initial value is set to 0; the RRC connection release completion message is used to indicate that the RNC deletes the bearer for the NodeB (base station) to the terminal. If the T308 timer expires, compare whether the value of the V308 counter is less than or equal to the maximum number of retransmissions N308; if it is less than or equal to N308, the terminal sends an RRC connection release completion message to the RNC again, the V308 counter Add 1 and start the timer again, loop the above steps until the value of the V308 counter is greater than N308; if it is greater than N308, The terminal deletes the wireless link used to carry the data sent by the terminal to the RNC;

3. After receiving the RRC connection release completion message, the RNC deletes the radio link used to carry the data sent by the NodeB to the terminal.

The RNC deletes the radio link used to carry the data sent by the NodeB to the terminal, and the RNC instructs the NodeB to delete the radio link used to carry the data sent by the NodeB to the terminal.

In order to control the transmission power of the terminal, and to overcome the "near-far effect", adjust the transmission power, ensure the communication quality of the upper and lower radio links, and reduce network interference, etc., it can be passed through UTRAN (UMTS<Universal Mobile Telecommunications System) The NodeB in the communication system > Terrestrial Radio Access Network, UMTS terrestrial radio access network periodically sends a TPC (Transmission Power Control) message to the terminal to control the increase or decrease of the transmission power of the terminal. If the TPC message currently received by the terminal is used to indicate the transmission power of the terminal, the terminal always increases the transmission power before receiving the next TPC message. Similarly, other situations are not listed.

In the process of implementing the above-mentioned wireless link translation, the inventor has found that at least the following problems exist in the prior art: After receiving the RRC connection release completion message, the RNC deletes the data used to carry the NodeB to the terminal. At this time, the NodeB cannot send a TPC message to the terminal, and the terminal cannot adjust the transmission power according to the TPC message. Therefore, the transmission power of the RRC connection translation completion message may be sharply increased or drastically decreased. The communication between the terminal and the NodeB is greatly affected, which reduces the communication quality. Summary of the invention

The embodiment of the present invention provides a method, a controller, and a terminal for decoding a radio link, which solves the problem that the transmission power of the terminal rises or falls sharply during the decoding of the radio link, so that the terminal and the base station The communication between the two is greatly disturbed, which reduces the problem of communication quality.

In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions:

In one aspect, a method for wireless link translation is provided, including:

The controller receives the connection release completion message, where the connection release completion message is used to instruct the controller to delete the first wireless link, and the first wireless link is used to send the base station controlled by the controller to send to the terminal The data;

The first timer is started, and the time duration of the first timer is greater than a preset period, where the preset period is a period in which the base station sends a transmit power control command to the terminal;

After the first timer expires, the first wireless link is deleted according to the connection release completion message.

In addition, another method for wireless link translation is provided, including:

After receiving the connection release request message sent by the controller, the terminal sends a connection release completion message to the controller, so that the controller starts the first timer after receiving the connection release completion message. After the first timer expires, the first radio link is deleted according to the connection release completion message, the timing of the first timer is greater than a preset period, and the preset period is the controller. And controlling, by the base station, a period of sending a power control command to the terminal, where the first wireless link is used to carry data sent by the base station to the terminal;

Starting a second timer;

When the second timer expires, and the counter value of the counter is less than or equal to the maximum number of retransmissions of the connection release completion message, the connection release completion message is sent to the controller again, and the The timer is added with a preset value, until the count value of the counter is greater than the maximum number of retransmissions, the second radio link is deleted, and the second radio link is used to carry the number sent by the terminal to the base station. According to.

In another aspect, a controller is provided, including:

a receiver, configured to receive a connection release completion message, where the connection release completion message is used to instruct the controller to delete a first wireless link, where the first wireless link is used to carry the base station controlled by the controller Data sent to the terminal;

The first timer is used for timing, and the timing of the first timer is greater than a preset period, where the preset period is a period in which the base station sends a transmit power control command to the terminal;

a processor, configured to start the first timer; after the first timer expires, deleting the first wireless link according to the connection release completion message.

In addition, a terminal is provided, including:

a receiver, configured to receive a connection release request message sent by the controller;

a processor, configured to start a second timer;

a transmitter, configured to send a connection release completion message to the controller after the receiver receives the connection release request message, so that after the controller receives the connection release completion message, The first timer is started, and after the first timer expires, the first radio link is deleted according to the connection release completion message, and the time duration of the first timer is greater than a preset period, the preset The period is a period in which the base station controlled by the controller sends a transmission power control command to the terminal, where the first radio link is used to carry data sent by the base station to the terminal; when the second timer expires And when the count value of the counter is less than or equal to the maximum number of retransmissions of the connection release completion message, the connection release completion message is sent to the controller again, and the timer is added to a preset value until When the count value of the counter is greater than the maximum number of retransmissions, the second radio link is deleted, and the second radio link is used to carry data sent by the terminal to the base station. After the foregoing method is adopted, the controller, after receiving the connection release completion message, does not immediately delete the first wireless link, but starts the first The timer deletes the first wireless link after the first timer expires. The timeout period of the first timer is greater than a preset period, where the preset period is a period in which the controller controlled base station sends a power transmission control command to the terminal; thus, before the terminal needs to send the connection release completion message to the controller again, Receiving the transmission power control command sent by the base station, and adjusting the transmission power of the terminal according to the transmission power control command, so that the transmission power of the terminal can be controlled, thereby avoiding a sharp rise or a sharp drop of the transmission power, resulting in a terminal and the base station. Communication is subject to large interference and reduces the quality of communication. DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

FIG. 1 is a flow chart of a method for downloading and releasing a wireless link by using a controller as a main body;

FIG. 2 is a flowchart of a method for decoding a radio link with a terminal as a main body according to the embodiment; FIG. 3 is a schematic diagram of another method for deciphering a radio link according to an embodiment of the present invention;

4 is a flow chart of a method for providing a wireless link translation in FIG. 3;

FIG. 5 is a schematic structural diagram of a controller according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure. detailed description

BRIEF DESCRIPTION OF THE DRAWINGS The technical solutions in the embodiments of the present invention will be described in detail with reference to the accompanying drawings. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative work are within the scope of the present invention.

This embodiment can be applied to various scenarios. The following embodiments are all described by taking a WCDMA system as an example.

In order to make it easier to understand the embodiments provided below, first, the WCDMA system and some of its workflows will be described.

First, WCDMA system structure

A WCDMA system can include three parts: CN (core network), UTRAN, and terminal.

CN can be used to handle the exchange and routing of calls and data connections with external networks.

UTRAN can be used to handle all wireless access related functions. The terminal can be used to interface with the user. The interface between the CN and the UTRAN is called an Iu interface, and the interface between the UTRAN and the UE is called a Uu interface.

The UTRAN is composed of one or more RNS (Radio Network Subsystem). An RNS consists of an RNC (Radio Network Controller) and one or more Node Bs (base stations). The RNC can be connected to another RNC via the Iur interface. The RNC is connected to the base station through an Iub interface.

In order to implement a call, a connection needs to be established between the terminal and the network device (e.g., may include, but is not limited to, CN, RNC, etc.). After the call ends, you need to release the connection. Since this embodiment only relates to the process of translation and connection, and the establishment of the connection is a technique well known to those skilled in the art, only the process of connecting and releasing the connection will be briefly described below.

Second, the connection is released

If the call ends, the RRC connection will be released. The RRC connection is the radio link between the terminal and the UTRAN and all the radio bearers. After the RRC connection is released, all the terminals are translated on the radio interface. Signaling connection.

The RRC connection translation occurs in the CELL_DCH (Cell-Specific Channel) state or the CELL_FACH (Cell Fast Access Channel) state if the current RRC connection is in the CELL-PCH (Cell Paging Channel) state or the URA-PCH (UTRAN Paging Channel) State, UTRAN first initiates paging to migrate the current state of the terminal to the CELL-FACH state, and then performs RRC connection translation. RNC according to different circumstances

The specific steps of the RRC connection translation are described in the background art, and are not described herein again.

In order to solve the problem in the prior art, the transmission power of the terminal is sharply increased or decreased during the decoding of the radio link, so that the communication between the terminal and the base station is greatly interfered, and the communication quality is reduced. A method for decoding a wireless link, the execution body of the method may be a controller, as shown in FIG. 1, may include:

101. The controller receives a connection release completion message, where the connection release completion message is used to instruct the controller to delete the first wireless link, and the first wireless link is used to carry data sent by the base station controlled by the controller to the terminal.

102. The first timer is started, where a timing of the first timer is greater than a preset period, where the preset period is a period in which the base station sends a transmit power control command to the terminal.

103. After the first timer expires, deleting the first wireless link according to the connection release completion message. After adopting the above scheme, the controller does not delete the first immediately after receiving the connection release completion message. The wireless link starts the first timer, and then deletes the first wireless link after the first timer expires. The timeout period of the first timer is greater than a preset period, where the preset period is a period in which the controller controlled base station sends a power transmission control command to the terminal; thus, before the terminal needs to send the connection release completion message to the controller again, Receiving the transmission power control command sent by the base station, and adjusting the transmission power of the terminal according to the transmission power control command, so that the transmission power of the terminal can be controlled, thereby avoiding a sharp rise or a sharp drop of the transmission power, resulting in a terminal and the base station. Communication is subject to large interference and reduces the quality of communication.

The embodiment provides a method for decoding a wireless link. The executor of the method may be a terminal. As shown in FIG. 2, the method may include:

201. After receiving the connection release request message sent by the controller, the terminal sends a connection release completion message to the controller, so that after receiving the connection release completion message, the controller starts the first timer, and is first. After the timer expires, the first radio link is deleted according to the connection release completion message, and the timing of the first timer is greater than a preset period, where the preset period is a period in which the controller controlled base station sends a transmission power control command to the terminal, a wireless link is used to carry data sent by the base station to the terminal;

202. Start a second timer.

203. When the second timer expires, and the counter value is less than or equal to the maximum number of retransmissions of the connection release completion message, send a connection release completion message to the controller, and add a preset value to the timer until When the count value of the counter is greater than the maximum number of retransmissions, the second radio link is deleted, and the second radio link is used to carry data sent by the terminal to the base station.

After the foregoing solution is adopted, after receiving the connection release completion message, the controller does not immediately delete the first wireless link, but starts the first timer, and then deletes the first wireless link after the first timer expires. The timing of the first timer is greater than the preset period, and the preset period is sent by the base station controlled by the controller to the terminal. The period of sending the power control command is sent; in this way, before the terminal needs to send the connection release completion message to the controller again, the terminal may also receive the transmission power control command sent by the base station, and adjust the transmission power of the terminal according to the transmission power control command. The transmission power of the terminal can be controlled to avoid a problem that the communication between the terminal and the base station is greatly interfered and the communication quality is lowered due to a sharp rise or a sharp drop in the transmission power.

As an improvement, this embodiment provides another method for decoding a wireless link, which is a further extension of the method shown in FIG. 1 and FIG. 2, in order to more easily understand the embodiment, as shown in FIG. An interaction diagram between the terminal, the controller, and the base station is provided. As shown in FIG. 4, a method for decoding a radio link is also provided.

As shown in FIG. 4, the method may include the following steps:

401. The controller sends a connection release request message to the terminal, where the connection release request message is used to instruct the terminal to delete the second wireless link, and the second wireless link is used to carry data sent by the terminal to the base station controlled by the controller.

In this embodiment, the content included in the connection and release request message is not limited, and may be set according to actual needs, and details are not described herein again.

402. After receiving the connection release request message sent by the controller, the terminal sends a connection release completion message to the controller, and starts a second timer, where the connection release completion message is used to instruct the controller to delete the first wireless link. The first wireless link is used to carry data sent by the base station to the terminal.

After step 402 is performed, steps 403 and 405 are simultaneously performed.

403. The controller receives the connection release completion message.

In this embodiment, the controller is not limited, and may be set according to actual needs. For example, it may be, but not limited to, an RNC, and the like, and details are not described herein again. In this embodiment, the content included in the connection and release completion message is not limited, and may be set according to actual needs, and details are not described herein again.

404. The controller starts a first timer, where a timing of the first timer is greater than a preset period, where the preset period is a period in which the base station sends a transmit power control command to the terminal.

The base station periodically sends a transmission power control command to the terminal, and the terminal can adjust the transmission power according to the last received transmission power control command. If the transmit power control command received by the terminal is used to indicate that the transmit power is increased, the terminal always adjusts the transmit power incrementally before receiving the next transmit power control command. Other circumstances will not be repeated.

The timing of the first timer is set to be greater than the preset period, so that the base station sends a transmission power control command to the terminal before deleting the first radio link (that is, before the first timer expires), thereby enabling the terminal to According to the transmission power control command, the transmission power of the connection release completion message is sent again by the terminal.

The method for transmitting a power control command to the terminal by the base station is not limited in this embodiment, and is a technology well known to those skilled in the art, and details are not described herein again.

In this embodiment, the chronograph duration and the preset period of the first timer are not limited, and may be set according to actual needs, and details are not described herein again.

Go to step 406.

405. Whenever the second timer expires, and the counter value of the counter is less than or equal to the maximum number of retransmissions of the connection release completion message, the terminal sends the connection release completion message to the controller again, and adds the preset value to the timer. , the second wireless link is deleted until the counter count value is greater than the maximum number of retransmissions.

Because the terminal sends the connection release completion message to the controller in the non-acknowledgment mode, the terminal may need to send the connection release completion message to the controller at least twice. Due to non-confirmation mode Techniques well known to those skilled in the art will not be described again.

Specifically, after the terminal sends the connection release completion message to the controller for the first time, the first timer is started (may be but not limited to the T308 timer, which may be referred to as T308 for convenience of description), and the counter (may be It is not limited to the V308 counter. For the convenience of description, the initial value of V308 can be abbreviated as 0. When T308 times out, it is judged whether the count value of V308 is less than or equal to the maximum number of retransmissions of the connection release completion message (can be recorded as N308). If it is less than or equal to, the terminal sends a connection release completion message to the controller, and adds V308 to a preset value (for example, may be, but not limited to, 1, 2, etc.), after the transmission is completed, V308 is added with a preset value and again Start T308, and cycle the above steps until the count value of V308 is greater than N308, the terminal deletes the second wireless link; if it is greater, the terminal deletes the second wireless link.

The method for deleting the second radio link in the terminal is not limited in this embodiment, and is a technology well known to those skilled in the art, and details are not described herein again.

Further, the timing of the first timer may be greater than the maximum number of retransmissions of the connection release completion message multiplied by the timing of the second timer; the maximum number of retransmissions of the connection release completion message multiplied by the timing of the second timer The duration is greater than the period in which the base station sends a transmit power control command to the terminal.

That is, the controller deletes the first wireless link after the terminal last sends the connection release completion message. It is ensured that during the sending of the connection release completion message, the terminal can always receive the transmission power control command sent by the base station, and adjust the transmission power of the terminal according to the transmission power control command, so that the transmission power of the terminal transmitting the connection release completion message is normal.

406. The controller receives a connection release completion message sent by the terminal again.

It is worth noting that the transmission power of the connection release completion message sent by the terminal is adjusted by the terminal according to the transmission power control command received after the first connection release translation completion message is sent. The transmission power does not cause a large interference to the communication between the terminal and the base station.

407. After the first timer expires, deleting the first wireless link according to the connection release completion message. Further, deleting the first radio link according to the connection release completion message may include: sending a radio link deletion request message to the base station according to the connection release completion message, so that the base station deletes the first radio link, and the radio link deletion request message is used by The base station is instructed to delete the first wireless link.

The method for deleting the first radio link by the base station is not limited in this embodiment, and is a technology well known to those skilled in the art, and details are not described herein again.

In this embodiment, the method for deleting the first radio link by the controller is not limited, and may be set according to actual needs, and details are not described herein again.

After the foregoing solution is adopted, the controller does not immediately delete the first wireless link after receiving the connection release completion message, but starts the first timer, and then deletes the first wireless link after the first timer expires. The timeout period of the first timer is greater than a preset period, where the preset period is a period in which the controller controlled base station sends a power transmission control command to the terminal; thus, before the terminal needs to send the connection release completion message to the controller again, Receiving the transmission power control command sent by the base station, and adjusting the transmission power of the terminal according to the transmission power control command, so that the transmission power of the terminal can be controlled, thereby avoiding a sharp rise or a sharp drop of the transmission power, resulting in a terminal and the base station. Communication is subject to large interference and reduces the quality of communication.

This embodiment provides a controller, as shown in FIG. 5, which may include:

The receiver 51 is configured to receive a connection release completion message, where the connection release completion message is used to instruct the controller to delete the first wireless link, and the first wireless link is used to carry data sent by the base station controlled by the controller to the terminal;

The first timer 52 is used for timing, and the timing of the first timer is greater than a preset period, and the preset period is The period is a period during which the base station sends a transmission power control command to the terminal;

The processor 53 is configured to start the first timer. After the first timer expires, the first wireless link is deleted according to the connection release completion message.

Further, the timing of the first timer 52 is greater than the maximum number of retransmissions of the connection release completion message multiplied by the timing of the second timer, whenever the second timer expires, and the counter count value is less than or equal to the connection translation When the maximum number of retransmissions of the completion message is received, the terminal sends a connection release complete message to the receiver again; the maximum number of retransmissions of the connection release completion message is multiplied by the time duration of the second timer, which is greater than the base station sends a transmission power control command to the terminal. Cycle.

Further, the processor 53 is further configured to send a radio link deletion request message to the base station according to the connection release completion message, so that the base station deletes the first radio link, where the radio link deletion request message is used to instruct the base station to delete the first radio chain. road.

Further, the controller is integrated with the base station; or, the controller is independently set with the base station.

After the foregoing solution is adopted, the processor does not immediately delete the first wireless link after receiving the connection release completion message, but starts the first timer, and then deletes the first wireless link after the first timer expires. . The timeout period of the first timer is greater than a preset period, where the preset period is a period in which the controller controlled base station sends a power transmission control command to the terminal; thus, before the terminal needs to send the connection release completion message to the controller again, Receiving the transmission power control command sent by the base station, and adjusting the transmission power of the terminal according to the transmission power control command, so that the transmission power of the terminal can be controlled, thereby avoiding a sharp rise or a sharp drop of the transmission power, resulting in a terminal and the base station. Communication is subject to large interference and reduces the quality of communication.

This embodiment provides a terminal, as shown in FIG. 6, which may include:

The receiver 61 is configured to receive a connection release request message sent by the controller. The processor 62 is configured to start a second timer.

The transmitter 63 is configured to send a connection release completion message to the controller after the receiver receives the connection release request message, so that the controller starts the first timer after receiving the connection release completion message, and is in the first After the timer expires, the first radio link is deleted according to the connection release completion message, and the timing of the first timer is greater than a preset period, where the preset period is a period in which the base station controlled by the controller sends a transmission power control command to the terminal. The first wireless link is used to carry data sent by the base station to the terminal; when the second timer expires, and the counter value is less than or equal to the maximum number of retransmissions of the connection release completion message, the connection is released to the controller again. The message is completed, and the timer is added to the preset value. When the counter value of the counter is greater than the maximum number of retransmissions, the second radio link is deleted, and the second radio link is used to carry data sent by the terminal to the base station.

Further, the timing of the first timer is greater than the maximum number of retransmissions times the duration of the second timer, and the maximum number of retransmissions is multiplied by the duration of the second timer, which is greater than the period in which the base station sends the transmission power control command to the terminal. .

After the above solution is adopted, after receiving the connection release completion message sent by the transmitter, the controller does not immediately delete the first wireless link, but starts the first timer, and then deletes the first wireless when the first timer expires. link. The timing of the first timer is greater than a preset period, where the preset period is a period in which the base station controlled by the controller sends a power control command to the terminal; thus, before the transmitter needs to send the connection release completion message to the controller again, The transmission power control command sent by the base station can be received, and the transmission power of the terminal can be adjusted according to the transmission power control command, so that the transmission power of the terminal can be controlled, and the terminal power and the base station are avoided due to a sharp rise or a sharp drop of the transmission power. The communication is greatly disturbed, and the problem of communication quality is lowered.

Through the description of the above embodiments, those skilled in the art can clearly understand the present invention. It can be implemented by means of software plus necessary general hardware, and of course it can also be through hardware, but in many cases the former is a better implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a readable storage medium, such as a floppy disk of a computer. A hard disk or optical disk or the like includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Claims

Rights request

1. A method of wireless link interpretation and playback, characterized by including:

The controller receives a connection interpretation and release completion message. The connection interpretation and release completion message is used to instruct the controller to delete the first wireless link. The first wireless link is used to carry the base station controlled by the controller to send to the terminal. The data;

Start the first timer, the timing duration of the first timer is longer than a preset period, and the preset period is the period during which the base station sends a transmission power control command to the terminal;

When the first timer times out, the first wireless link is deleted according to the connection interpretation completion message.

2. The method of wireless link interpretation and playback according to claim 1, characterized in that the timing duration of the first timer is greater than the maximum number of retransmissions of the connection interpretation and playback completion message multiplied by the second timer. Timing duration. Whenever the second timer times out and the count value of the counter is less than or equal to the maximum number of retransmissions of the connection interpretation completion message, the terminal sends the connection interpretation completion message to the controller again. Completion message; The maximum number of retransmissions of the connection interpretation completion message multiplied by the timing duration of the second timer is greater than the period during which the base station sends a transmission power control command to the terminal.

3. The method of wireless link interpretation and playback according to claim 1 or 2, characterized in that: deleting the first wireless link according to the connection interpretation and playback completion message includes:

Send a wireless link deletion request message to the base station according to the connection interpretation completion message, so that the base station deletes the first wireless link, and the wireless link deletion request message is used to instruct the base station to delete the First wireless link.

4. A method of wireless link interpretation and playback, characterized by including:

After receiving the connection interpretation request message sent by the controller, the terminal sends a connection to the controller. The interpretation and release completion message is such that after receiving the connection interpretation and release completion message, the controller starts the first timer, and after the first timer times out, deletes the first timer according to the connection interpretation and release completion message. wireless link, the timing duration of the first timer is longer than a preset period, and the preset period is a period during which the base station controlled by the controller sends a power control command to the terminal, the first wireless link Used to carry data sent by the base station to the terminal;

Start the second timer;

When the second timer times out and the count value of the counter is less than or equal to the maximum number of retransmissions of the connection interpretation and release completion message, the connection interpretation and release completion message is sent to the controller again, and the connection interpretation and release completion message is sent to the controller again. The timer adds a preset value, and when the count value of the counter is greater than the maximum number of retransmissions, the second wireless link is deleted. The second wireless link is used to carry the data sent by the terminal to the base station. .

5. The wireless link interpretation method according to claim 4, wherein the timing duration of the first timer is greater than the maximum number of retransmissions multiplied by the timing duration of the second timer, so The maximum number of retransmissions multiplied by the timing duration of the second timer is greater than the period during which the base station sends a transmission power control command to the terminal.

6. A controller, characterized in that it includes:

Receiver, configured to receive a connection interpretation and release completion message, the connection interpretation and release completion message is used to instruct the controller to delete the first wireless link, and the first wireless link is used to carry the base station controlled by the controller Data sent to the terminal;

The first timer is used for timing, and the timing duration of the first timer is longer than the preset period. The preset period is the period during which the base station sends a power control command to the terminal;

processor, configured to start the first timer; when the first timer times out, according to the The connection interpretation completion message deletes the first wireless link.

7. The controller according to claim 6, wherein the timing duration of the first timer is greater than the maximum number of retransmissions of the connection interpretation completion message times the timing duration of the second timer, and whenever When the second timer times out and the count value of the counter is less than or equal to the maximum number of retransmissions of the connection interpretation completion message, the terminal sends the connection interpretation completion message to the receiver again; The maximum number of retransmissions of the connection interpretation completion message multiplied by the timing duration of the second timer is greater than the period during which the base station sends a transmission power control command to the terminal.

8. The controller according to claim 6 or 7, wherein the processor is further configured to send a wireless link deletion request message to the base station according to the connection interpretation completion message, so that the base station The first wireless link is deleted, and the wireless link deletion request message is used to instruct the base station to delete the first wireless link.

9. The controller according to any one of claims 6 to 8, characterized in that, the controller is integrated with the base station; or, the controller is independently configured with the base station.

10. A terminal, characterized in that it includes:

Receiver, used to receive the connection translation request message sent by the controller;

Processor, used to start the second timer;

The sender is configured to send a connection interpretation and release completion message to the controller after the receiver receives the connection interpretation and release request message, so that after the controller receives the connection interpretation and release completion message, Start the first timer, and after the first timer times out, delete the first wireless link according to the connection interpretation completion message, the timing duration of the first timer is greater than the preset period, and the preset period The period is the period during which the base station controlled by the controller sends a power control command to the terminal, and the first wireless link is used to carry data sent by the base station to the terminal; when the second timer times out , and When the count value of the counter is less than or equal to the maximum number of retransmissions of the connection interpretation and release completion message, the connection interpretation and release completion message is sent to the controller again, and the timer is increased by a preset value until the When the count value of the counter is greater than the maximum number of retransmissions, the second wireless link is deleted, and the second wireless link is used to carry data sent by the terminal to the base station.

11. The terminal according to claim 10, wherein the timing duration of the first timer is greater than the maximum number of retransmissions multiplied by the timing duration of the second timer, and the maximum number of retransmissions multiplied by The timing duration of the second timer is greater than the period during which the base station sends a transmission power control command to the terminal.